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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
aa2fbcec | 24 | #define TPACPI_VERSION "0.22" |
50ebec09 | 25 | #define TPACPI_SYSFS_VERSION 0x020200 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
4fa6811b | 70 | #include <linux/leds.h> |
0e74dc26 | 71 | #include <linux/rfkill.h> |
0c78039f HMH |
72 | #include <asm/uaccess.h> |
73 | ||
74 | #include <linux/dmi.h> | |
75 | #include <linux/jiffies.h> | |
76 | #include <linux/workqueue.h> | |
77 | ||
78 | #include <acpi/acpi_drivers.h> | |
0c78039f HMH |
79 | |
80 | #include <linux/pci_ids.h> | |
81 | ||
0c78039f HMH |
82 | |
83 | /* ThinkPad CMOS commands */ | |
84 | #define TP_CMOS_VOLUME_DOWN 0 | |
85 | #define TP_CMOS_VOLUME_UP 1 | |
86 | #define TP_CMOS_VOLUME_MUTE 2 | |
87 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
88 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
89 | #define TP_CMOS_THINKLIGHT_ON 12 |
90 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
91 | |
92 | /* NVRAM Addresses */ | |
93 | enum tp_nvram_addr { | |
94 | TP_NVRAM_ADDR_HK2 = 0x57, | |
95 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
96 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
97 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
98 | TP_NVRAM_ADDR_MIXER = 0x60, | |
99 | }; | |
100 | ||
101 | /* NVRAM bit masks */ | |
102 | enum { | |
103 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
104 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
105 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
106 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
107 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
108 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
109 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
110 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
111 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
112 | TP_NVRAM_MASK_MUTE = 0x40, | |
113 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
114 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
115 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
116 | }; | |
117 | ||
b21a15f6 | 118 | /* ACPI HIDs */ |
e0c7dfe7 | 119 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
120 | |
121 | /* Input IDs */ | |
122 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
123 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
124 | ||
153f8220 HMH |
125 | /* ACPI \WGSV commands */ |
126 | enum { | |
127 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
128 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
129 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
130 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
131 | }; | |
132 | ||
133 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
134 | enum { | |
135 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
136 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
137 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
138 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
139 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
140 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
141 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
142 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
143 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
144 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
145 | }; | |
b21a15f6 HMH |
146 | |
147 | /**************************************************************************** | |
148 | * Main driver | |
149 | */ | |
150 | ||
e0c7dfe7 HMH |
151 | #define TPACPI_NAME "thinkpad" |
152 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
153 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
154 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
155 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 156 | |
e0c7dfe7 HMH |
157 | #define TPACPI_PROC_DIR "ibm" |
158 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
159 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 160 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 161 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 162 | |
95e57ab2 | 163 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 164 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 165 | |
e0c7dfe7 | 166 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 167 | |
0e74dc26 HMH |
168 | /* rfkill switches */ |
169 | enum { | |
170 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
171 | TPACPI_RFK_WWAN_SW_ID, | |
0045c0aa | 172 | TPACPI_RFK_UWB_SW_ID, |
0e74dc26 HMH |
173 | }; |
174 | ||
7ff8d62f | 175 | /* printk headers */ |
e0c7dfe7 | 176 | #define TPACPI_LOG TPACPI_FILE ": " |
7ff8d62f HMH |
177 | #define TPACPI_EMERG KERN_EMERG TPACPI_LOG |
178 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG | |
179 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG | |
180 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
181 | #define TPACPI_WARN KERN_WARNING TPACPI_LOG | |
182 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
183 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
184 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
185 | ||
186 | /* Debugging printk groups */ | |
0c78039f HMH |
187 | #define TPACPI_DBG_ALL 0xffff |
188 | #define TPACPI_DBG_INIT 0x0001 | |
189 | #define TPACPI_DBG_EXIT 0x0002 | |
0c78039f | 190 | |
35ff8b9f HMH |
191 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
192 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
193 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 194 | |
0c78039f HMH |
195 | |
196 | /**************************************************************************** | |
b21a15f6 | 197 | * Driver-wide structs and misc. variables |
0c78039f HMH |
198 | */ |
199 | ||
200 | struct ibm_struct; | |
201 | ||
202 | struct tp_acpi_drv_struct { | |
203 | const struct acpi_device_id *hid; | |
204 | struct acpi_driver *driver; | |
205 | ||
206 | void (*notify) (struct ibm_struct *, u32); | |
207 | acpi_handle *handle; | |
208 | u32 type; | |
209 | struct acpi_device *device; | |
210 | }; | |
211 | ||
212 | struct ibm_struct { | |
213 | char *name; | |
214 | ||
215 | int (*read) (char *); | |
216 | int (*write) (char *); | |
217 | void (*exit) (void); | |
218 | void (*resume) (void); | |
083f1760 | 219 | void (*suspend) (pm_message_t state); |
90d9d3c7 | 220 | void (*shutdown) (void); |
0c78039f HMH |
221 | |
222 | struct list_head all_drivers; | |
223 | ||
224 | struct tp_acpi_drv_struct *acpi; | |
225 | ||
226 | struct { | |
227 | u8 acpi_driver_registered:1; | |
228 | u8 acpi_notify_installed:1; | |
229 | u8 proc_created:1; | |
230 | u8 init_called:1; | |
231 | u8 experimental:1; | |
232 | } flags; | |
233 | }; | |
234 | ||
235 | struct ibm_init_struct { | |
236 | char param[32]; | |
237 | ||
238 | int (*init) (struct ibm_init_struct *); | |
239 | struct ibm_struct *data; | |
240 | }; | |
241 | ||
242 | static struct { | |
243 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
244 | u32 bay_status:1; | |
245 | u32 bay_eject:1; | |
246 | u32 bay_status2:1; | |
247 | u32 bay_eject2:1; | |
248 | #endif | |
249 | u32 bluetooth:1; | |
250 | u32 hotkey:1; | |
251 | u32 hotkey_mask:1; | |
252 | u32 hotkey_wlsw:1; | |
6c231bd5 | 253 | u32 hotkey_tablet:1; |
0c78039f HMH |
254 | u32 light:1; |
255 | u32 light_status:1; | |
256 | u32 bright_16levels:1; | |
b5972796 | 257 | u32 bright_acpimode:1; |
0c78039f | 258 | u32 wan:1; |
0045c0aa | 259 | u32 uwb:1; |
0c78039f HMH |
260 | u32 fan_ctrl_status_undef:1; |
261 | u32 input_device_registered:1; | |
262 | u32 platform_drv_registered:1; | |
263 | u32 platform_drv_attrs_registered:1; | |
264 | u32 sensors_pdrv_registered:1; | |
265 | u32 sensors_pdrv_attrs_registered:1; | |
266 | u32 sensors_pdev_attrs_registered:1; | |
267 | u32 hotkey_poll_active:1; | |
268 | } tp_features; | |
269 | ||
92889022 HMH |
270 | static struct { |
271 | u16 hotkey_mask_ff:1; | |
2d5e94d7 | 272 | u16 bright_cmos_ec_unsync:1; |
92889022 HMH |
273 | } tp_warned; |
274 | ||
0c78039f HMH |
275 | struct thinkpad_id_data { |
276 | unsigned int vendor; /* ThinkPad vendor: | |
277 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
278 | ||
279 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
280 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
281 | ||
282 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
283 | u16 ec_model; | |
284 | ||
8c74adbc HMH |
285 | char *model_str; /* ThinkPad T43 */ |
286 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 287 | }; |
0c78039f HMH |
288 | static struct thinkpad_id_data thinkpad_id; |
289 | ||
8fef502e HMH |
290 | static enum { |
291 | TPACPI_LIFE_INIT = 0, | |
292 | TPACPI_LIFE_RUNNING, | |
293 | TPACPI_LIFE_EXITING, | |
294 | } tpacpi_lifecycle; | |
295 | ||
b21a15f6 HMH |
296 | static int experimental; |
297 | static u32 dbg_level; | |
298 | ||
e0e3c061 HMH |
299 | static struct workqueue_struct *tpacpi_wq; |
300 | ||
4fa6811b HMH |
301 | /* Special LED class that can defer work */ |
302 | struct tpacpi_led_classdev { | |
303 | struct led_classdev led_classdev; | |
304 | struct work_struct work; | |
305 | enum led_brightness new_brightness; | |
af116101 | 306 | unsigned int led; |
4fa6811b HMH |
307 | }; |
308 | ||
a73f3091 HMH |
309 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
310 | static int dbg_wlswemul; | |
311 | static int tpacpi_wlsw_emulstate; | |
312 | static int dbg_bluetoothemul; | |
313 | static int tpacpi_bluetooth_emulstate; | |
314 | static int dbg_wwanemul; | |
315 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
316 | static int dbg_uwbemul; |
317 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
318 | #endif |
319 | ||
320 | ||
3dcc2c3b HMH |
321 | /************************************************************************* |
322 | * Debugging helpers | |
323 | */ | |
324 | ||
325 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
326 | do { if (dbg_level & (a_dbg_level)) \ | |
327 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ | |
328 | } while (0) | |
329 | ||
330 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
331 | #define vdbg_printk dbg_printk | |
332 | static const char *str_supported(int is_supported); | |
333 | #else | |
334 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
335 | do { } while (0) | |
336 | #endif | |
337 | ||
338 | ||
56b6aeb0 HMH |
339 | /**************************************************************************** |
340 | **************************************************************************** | |
341 | * | |
342 | * ACPI Helpers and device model | |
343 | * | |
344 | **************************************************************************** | |
345 | ****************************************************************************/ | |
346 | ||
347 | /************************************************************************* | |
348 | * ACPI basic handles | |
349 | */ | |
1da177e4 | 350 | |
94954cc6 | 351 | static acpi_handle root_handle; |
1da177e4 | 352 | |
e0c7dfe7 | 353 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
354 | static acpi_handle object##_handle; \ |
355 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 356 | static char *object##_path; \ |
1da177e4 LT |
357 | static char *object##_paths[] = { paths } |
358 | ||
e0c7dfe7 | 359 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
360 | "\\_SB.PCI.ISA.EC", /* 570 */ |
361 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
362 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
363 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
364 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
365 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 366 | ); |
78f81cc4 | 367 | |
e0c7dfe7 HMH |
368 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
369 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 370 | |
35ff8b9f HMH |
371 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
372 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
373 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
374 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 375 | ); /* all others */ |
78f81cc4 | 376 | |
e0c7dfe7 | 377 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
378 | "^HKEY", /* R30, R31 */ |
379 | "HKEY", /* all others */ | |
56b6aeb0 | 380 | ); /* 570 */ |
78f81cc4 | 381 | |
d7c1d17d HMH |
382 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
383 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
384 | "\\_SB.PCI0.VID0", /* 770e */ | |
385 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
386 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
387 | ); /* R30, R31 */ | |
388 | ||
78f81cc4 | 389 | |
56b6aeb0 HMH |
390 | /************************************************************************* |
391 | * ACPI helpers | |
a8b7a662 HMH |
392 | */ |
393 | ||
1da177e4 LT |
394 | static int acpi_evalf(acpi_handle handle, |
395 | void *res, char *method, char *fmt, ...) | |
396 | { | |
397 | char *fmt0 = fmt; | |
78f81cc4 | 398 | struct acpi_object_list params; |
e0c7dfe7 | 399 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
400 | struct acpi_buffer result, *resultp; |
401 | union acpi_object out_obj; | |
402 | acpi_status status; | |
403 | va_list ap; | |
404 | char res_type; | |
405 | int success; | |
406 | int quiet; | |
1da177e4 LT |
407 | |
408 | if (!*fmt) { | |
e0c7dfe7 | 409 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
410 | return 0; |
411 | } | |
412 | ||
413 | if (*fmt == 'q') { | |
414 | quiet = 1; | |
415 | fmt++; | |
416 | } else | |
417 | quiet = 0; | |
418 | ||
419 | res_type = *(fmt++); | |
420 | ||
421 | params.count = 0; | |
422 | params.pointer = &in_objs[0]; | |
423 | ||
424 | va_start(ap, fmt); | |
425 | while (*fmt) { | |
426 | char c = *(fmt++); | |
427 | switch (c) { | |
428 | case 'd': /* int */ | |
429 | in_objs[params.count].integer.value = va_arg(ap, int); | |
430 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
431 | break; | |
78f81cc4 | 432 | /* add more types as needed */ |
1da177e4 | 433 | default: |
e0c7dfe7 | 434 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
435 | "with invalid format character '%c'\n", c); |
436 | return 0; | |
437 | } | |
438 | } | |
439 | va_end(ap); | |
440 | ||
78f81cc4 BD |
441 | if (res_type != 'v') { |
442 | result.length = sizeof(out_obj); | |
443 | result.pointer = &out_obj; | |
444 | resultp = &result; | |
445 | } else | |
446 | resultp = NULL; | |
1da177e4 | 447 | |
78f81cc4 | 448 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
449 | |
450 | switch (res_type) { | |
78f81cc4 | 451 | case 'd': /* int */ |
1da177e4 LT |
452 | if (res) |
453 | *(int *)res = out_obj.integer.value; | |
454 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
455 | break; | |
78f81cc4 | 456 | case 'v': /* void */ |
1da177e4 LT |
457 | success = status == AE_OK; |
458 | break; | |
78f81cc4 | 459 | /* add more types as needed */ |
1da177e4 | 460 | default: |
e0c7dfe7 | 461 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
462 | "with invalid format character '%c'\n", res_type); |
463 | return 0; | |
464 | } | |
465 | ||
56b6aeb0 | 466 | if (!success && !quiet) |
e0c7dfe7 | 467 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
468 | method, fmt0, status); |
469 | ||
470 | return success; | |
471 | } | |
472 | ||
35ff8b9f | 473 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
474 | { |
475 | int v; | |
476 | ||
477 | if (ecrd_handle) { | |
478 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
479 | return 0; | |
480 | *p = v; | |
481 | } else { | |
482 | if (ec_read(i, p) < 0) | |
483 | return 0; | |
484 | } | |
485 | ||
486 | return 1; | |
487 | } | |
488 | ||
489 | static int acpi_ec_write(int i, u8 v) | |
490 | { | |
491 | if (ecwr_handle) { | |
492 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
493 | return 0; | |
494 | } else { | |
495 | if (ec_write(i, v) < 0) | |
496 | return 0; | |
497 | } | |
498 | ||
499 | return 1; | |
500 | } | |
501 | ||
013c40e4 | 502 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
503 | static int _sta(acpi_handle handle) |
504 | { | |
505 | int status; | |
506 | ||
507 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
508 | status = 0; | |
509 | ||
510 | return status; | |
511 | } | |
013c40e4 | 512 | #endif |
56b6aeb0 | 513 | |
c9bea99c HMH |
514 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
515 | { | |
516 | if (!cmos_handle) | |
517 | return -ENXIO; | |
518 | ||
519 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
520 | return -EIO; | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
56b6aeb0 HMH |
525 | /************************************************************************* |
526 | * ACPI device model | |
527 | */ | |
528 | ||
35ff8b9f HMH |
529 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
530 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
531 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
532 | ||
8d376cd6 | 533 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
534 | acpi_handle *handle, acpi_handle parent, |
535 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
536 | { |
537 | int i; | |
538 | acpi_status status; | |
539 | ||
5ae930e6 HMH |
540 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
541 | name); | |
542 | ||
56b6aeb0 HMH |
543 | for (i = 0; i < num_paths; i++) { |
544 | status = acpi_get_handle(parent, paths[i], handle); | |
545 | if (ACPI_SUCCESS(status)) { | |
546 | *path = paths[i]; | |
5ae930e6 HMH |
547 | dbg_printk(TPACPI_DBG_INIT, |
548 | "Found ACPI handle %s for %s\n", | |
549 | *path, name); | |
56b6aeb0 HMH |
550 | return; |
551 | } | |
552 | } | |
553 | ||
5ae930e6 HMH |
554 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
555 | name); | |
56b6aeb0 HMH |
556 | *handle = NULL; |
557 | } | |
558 | ||
8d376cd6 | 559 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
560 | { |
561 | struct ibm_struct *ibm = data; | |
562 | ||
8fef502e HMH |
563 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
564 | return; | |
565 | ||
8d376cd6 | 566 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
567 | return; |
568 | ||
8d376cd6 | 569 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
570 | } |
571 | ||
8d376cd6 | 572 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
573 | { |
574 | acpi_status status; | |
5ae930e6 | 575 | int rc; |
56b6aeb0 | 576 | |
8d376cd6 HMH |
577 | BUG_ON(!ibm->acpi); |
578 | ||
579 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
580 | return 0; |
581 | ||
5ae930e6 | 582 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
583 | "setting up ACPI notify for %s\n", ibm->name); |
584 | ||
5ae930e6 HMH |
585 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
586 | if (rc < 0) { | |
e0c7dfe7 | 587 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 588 | ibm->name, rc); |
56b6aeb0 HMH |
589 | return -ENODEV; |
590 | } | |
591 | ||
db89b4f0 | 592 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 593 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 594 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 595 | ibm->name); |
56b6aeb0 | 596 | |
8d376cd6 HMH |
597 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
598 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
599 | if (ACPI_FAILURE(status)) { |
600 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
601 | printk(TPACPI_NOTICE |
602 | "another device driver is already " | |
603 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 604 | } else { |
35ff8b9f HMH |
605 | printk(TPACPI_ERR |
606 | "acpi_install_notify_handler(%s) failed: %d\n", | |
607 | ibm->name, status); | |
56b6aeb0 HMH |
608 | } |
609 | return -ENODEV; | |
610 | } | |
8d376cd6 | 611 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
612 | return 0; |
613 | } | |
614 | ||
8d376cd6 | 615 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
616 | { |
617 | return 0; | |
618 | } | |
619 | ||
6700121b | 620 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 621 | { |
5ae930e6 | 622 | int rc; |
56b6aeb0 | 623 | |
fe08bc4b HMH |
624 | dbg_printk(TPACPI_DBG_INIT, |
625 | "registering %s as an ACPI driver\n", ibm->name); | |
626 | ||
8d376cd6 HMH |
627 | BUG_ON(!ibm->acpi); |
628 | ||
629 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
630 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
631 | printk(TPACPI_ERR |
632 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 633 | return -ENOMEM; |
56b6aeb0 HMH |
634 | } |
635 | ||
e0c7dfe7 | 636 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 637 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 638 | |
8d376cd6 | 639 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 640 | |
5ae930e6 HMH |
641 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
642 | if (rc < 0) { | |
e0c7dfe7 | 643 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 644 | ibm->name, rc); |
8d376cd6 HMH |
645 | kfree(ibm->acpi->driver); |
646 | ibm->acpi->driver = NULL; | |
5ae930e6 | 647 | } else if (!rc) |
8d376cd6 | 648 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 649 | |
5ae930e6 | 650 | return rc; |
56b6aeb0 HMH |
651 | } |
652 | ||
653 | ||
654 | /**************************************************************************** | |
655 | **************************************************************************** | |
656 | * | |
657 | * Procfs Helpers | |
658 | * | |
659 | **************************************************************************** | |
660 | ****************************************************************************/ | |
661 | ||
8d376cd6 HMH |
662 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
663 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
664 | { |
665 | struct ibm_struct *ibm = data; | |
666 | int len; | |
667 | ||
668 | if (!ibm || !ibm->read) | |
669 | return -EINVAL; | |
670 | ||
671 | len = ibm->read(page); | |
672 | if (len < 0) | |
673 | return len; | |
674 | ||
675 | if (len <= off + count) | |
676 | *eof = 1; | |
677 | *start = page + off; | |
678 | len -= off; | |
679 | if (len > count) | |
680 | len = count; | |
681 | if (len < 0) | |
682 | len = 0; | |
683 | ||
684 | return len; | |
685 | } | |
686 | ||
8d376cd6 | 687 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 688 | const char __user *userbuf, |
8d376cd6 | 689 | unsigned long count, void *data) |
56b6aeb0 HMH |
690 | { |
691 | struct ibm_struct *ibm = data; | |
692 | char *kernbuf; | |
693 | int ret; | |
694 | ||
695 | if (!ibm || !ibm->write) | |
696 | return -EINVAL; | |
697 | ||
698 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
699 | if (!kernbuf) | |
700 | return -ENOMEM; | |
1da177e4 | 701 | |
56b6aeb0 HMH |
702 | if (copy_from_user(kernbuf, userbuf, count)) { |
703 | kfree(kernbuf); | |
704 | return -EFAULT; | |
705 | } | |
1da177e4 | 706 | |
56b6aeb0 HMH |
707 | kernbuf[count] = 0; |
708 | strcat(kernbuf, ","); | |
709 | ret = ibm->write(kernbuf); | |
710 | if (ret == 0) | |
711 | ret = count; | |
1da177e4 | 712 | |
56b6aeb0 HMH |
713 | kfree(kernbuf); |
714 | ||
715 | return ret; | |
1da177e4 LT |
716 | } |
717 | ||
718 | static char *next_cmd(char **cmds) | |
719 | { | |
720 | char *start = *cmds; | |
721 | char *end; | |
722 | ||
723 | while ((end = strchr(start, ',')) && end == start) | |
724 | start = end + 1; | |
725 | ||
726 | if (!end) | |
727 | return NULL; | |
728 | ||
729 | *end = 0; | |
730 | *cmds = end + 1; | |
731 | return start; | |
732 | } | |
733 | ||
56b6aeb0 | 734 | |
54ae1501 HMH |
735 | /**************************************************************************** |
736 | **************************************************************************** | |
737 | * | |
7f5d1cd6 | 738 | * Device model: input, hwmon and platform |
54ae1501 HMH |
739 | * |
740 | **************************************************************************** | |
741 | ****************************************************************************/ | |
742 | ||
94954cc6 | 743 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 744 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 745 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 746 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 747 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 748 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 749 | |
083f1760 HMH |
750 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
751 | pm_message_t state) | |
752 | { | |
753 | struct ibm_struct *ibm, *itmp; | |
754 | ||
755 | list_for_each_entry_safe(ibm, itmp, | |
756 | &tpacpi_all_drivers, | |
757 | all_drivers) { | |
758 | if (ibm->suspend) | |
759 | (ibm->suspend)(state); | |
760 | } | |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
e295e850 HMH |
765 | static int tpacpi_resume_handler(struct platform_device *pdev) |
766 | { | |
767 | struct ibm_struct *ibm, *itmp; | |
768 | ||
769 | list_for_each_entry_safe(ibm, itmp, | |
770 | &tpacpi_all_drivers, | |
771 | all_drivers) { | |
772 | if (ibm->resume) | |
773 | (ibm->resume)(); | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
90d9d3c7 HMH |
779 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
780 | { | |
781 | struct ibm_struct *ibm, *itmp; | |
782 | ||
783 | list_for_each_entry_safe(ibm, itmp, | |
784 | &tpacpi_all_drivers, | |
785 | all_drivers) { | |
786 | if (ibm->shutdown) | |
787 | (ibm->shutdown)(); | |
788 | } | |
789 | } | |
790 | ||
54ae1501 HMH |
791 | static struct platform_driver tpacpi_pdriver = { |
792 | .driver = { | |
e0c7dfe7 | 793 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
794 | .owner = THIS_MODULE, |
795 | }, | |
083f1760 | 796 | .suspend = tpacpi_suspend_handler, |
e295e850 | 797 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 798 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
799 | }; |
800 | ||
7fd40029 HMH |
801 | static struct platform_driver tpacpi_hwmon_pdriver = { |
802 | .driver = { | |
e0c7dfe7 | 803 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
804 | .owner = THIS_MODULE, |
805 | }, | |
806 | }; | |
54ae1501 | 807 | |
176750d6 | 808 | /************************************************************************* |
b21a15f6 | 809 | * sysfs support helpers |
176750d6 HMH |
810 | */ |
811 | ||
b21a15f6 HMH |
812 | struct attribute_set { |
813 | unsigned int members, max_members; | |
814 | struct attribute_group group; | |
176750d6 HMH |
815 | }; |
816 | ||
7252374a HMH |
817 | struct attribute_set_obj { |
818 | struct attribute_set s; | |
819 | struct attribute *a; | |
820 | } __attribute__((packed)); | |
821 | ||
822 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 823 | const char *name) |
7252374a HMH |
824 | { |
825 | struct attribute_set_obj *sobj; | |
826 | ||
827 | if (max_members == 0) | |
828 | return NULL; | |
829 | ||
830 | /* Allocates space for implicit NULL at the end too */ | |
831 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
832 | max_members * sizeof(struct attribute *), | |
833 | GFP_KERNEL); | |
834 | if (!sobj) | |
835 | return NULL; | |
836 | sobj->s.max_members = max_members; | |
837 | sobj->s.group.attrs = &sobj->a; | |
838 | sobj->s.group.name = name; | |
839 | ||
840 | return &sobj->s; | |
841 | } | |
842 | ||
f74a27d4 HMH |
843 | #define destroy_attr_set(_set) \ |
844 | kfree(_set); | |
845 | ||
7252374a | 846 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 847 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
848 | { |
849 | if (!s || !attr) | |
850 | return -EINVAL; | |
851 | ||
852 | if (s->members >= s->max_members) | |
853 | return -ENOMEM; | |
854 | ||
855 | s->group.attrs[s->members] = attr; | |
856 | s->members++; | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
35ff8b9f | 861 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
862 | struct attribute **attr, |
863 | unsigned int count) | |
864 | { | |
865 | int i, res; | |
866 | ||
867 | for (i = 0; i < count; i++) { | |
868 | res = add_to_attr_set(s, attr[i]); | |
869 | if (res) | |
870 | return res; | |
871 | } | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
35ff8b9f | 876 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
877 | { |
878 | sysfs_remove_group(kobj, &s->group); | |
879 | destroy_attr_set(s); | |
880 | } | |
881 | ||
f74a27d4 HMH |
882 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
883 | sysfs_create_group(_kobj, &_attr_set->group) | |
884 | ||
7252374a HMH |
885 | static int parse_strtoul(const char *buf, |
886 | unsigned long max, unsigned long *value) | |
887 | { | |
888 | char *endp; | |
889 | ||
32afbf07 HMH |
890 | while (*buf && isspace(*buf)) |
891 | buf++; | |
7252374a HMH |
892 | *value = simple_strtoul(buf, &endp, 0); |
893 | while (*endp && isspace(*endp)) | |
894 | endp++; | |
895 | if (*endp || *value > max) | |
896 | return -EINVAL; | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
d64c81c4 HMH |
901 | static void tpacpi_disable_brightness_delay(void) |
902 | { | |
903 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
904 | printk(TPACPI_NOTICE | |
905 | "ACPI backlight control delay disabled\n"); | |
906 | } | |
907 | ||
b5972796 HMH |
908 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
909 | { | |
910 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
911 | union acpi_object *obj; | |
912 | int rc; | |
913 | ||
914 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
915 | obj = (union acpi_object *)buffer.pointer; | |
916 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
917 | printk(TPACPI_ERR "Unknown _BCL data, " | |
918 | "please report this to %s\n", TPACPI_MAIL); | |
919 | rc = 0; | |
920 | } else { | |
921 | rc = obj->package.count; | |
922 | } | |
923 | } else { | |
924 | return 0; | |
925 | } | |
926 | ||
927 | kfree(buffer.pointer); | |
928 | return rc; | |
929 | } | |
930 | ||
931 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
932 | u32 lvl, void *context, void **rv) | |
933 | { | |
934 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
935 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
936 | ||
937 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
938 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
939 | BUG_ON(!rv || !*rv); | |
940 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
941 | return AE_CTRL_TERMINATE; | |
942 | } else { | |
943 | return AE_OK; | |
944 | } | |
945 | } | |
946 | ||
947 | /* | |
948 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
949 | */ | |
950 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
951 | { | |
952 | int status; | |
953 | int bcl_levels = 0; | |
954 | void *bcl_ptr = &bcl_levels; | |
955 | ||
956 | if (!vid_handle) { | |
957 | TPACPI_ACPIHANDLE_INIT(vid); | |
958 | } | |
959 | if (!vid_handle) | |
960 | return 0; | |
961 | ||
962 | /* | |
963 | * Search for a _BCL method, and execute it. This is safe on all | |
964 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
965 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
966 | * about calling the _BCL method in an enabled video device, any | |
967 | * will do for our purposes. | |
968 | */ | |
969 | ||
970 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
971 | tpacpi_acpi_walk_find_bcl, NULL, | |
972 | &bcl_ptr); | |
973 | ||
974 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
975 | tp_features.bright_acpimode = 1; | |
976 | return (bcl_levels - 2); | |
977 | } | |
978 | ||
979 | return 0; | |
980 | } | |
981 | ||
0e74dc26 HMH |
982 | static int __init tpacpi_new_rfkill(const unsigned int id, |
983 | struct rfkill **rfk, | |
984 | const enum rfkill_type rfktype, | |
985 | const char *name, | |
0045c0aa | 986 | const bool set_default, |
0e74dc26 HMH |
987 | int (*toggle_radio)(void *, enum rfkill_state), |
988 | int (*get_state)(void *, enum rfkill_state *)) | |
989 | { | |
990 | int res; | |
90d9d3c7 HMH |
991 | enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED; |
992 | ||
993 | res = get_state(NULL, &initial_state); | |
994 | if (res < 0) { | |
995 | printk(TPACPI_ERR | |
996 | "failed to read initial state for %s, error %d; " | |
997 | "will turn radio off\n", name, res); | |
0045c0aa | 998 | } else if (set_default) { |
90d9d3c7 HMH |
999 | /* try to set the initial state as the default for the rfkill |
1000 | * type, since we ask the firmware to preserve it across S5 in | |
1001 | * NVRAM */ | |
1002 | rfkill_set_default(rfktype, | |
1003 | (initial_state == RFKILL_STATE_UNBLOCKED) ? | |
1004 | RFKILL_STATE_UNBLOCKED : | |
1005 | RFKILL_STATE_SOFT_BLOCKED); | |
1006 | } | |
0e74dc26 HMH |
1007 | |
1008 | *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); | |
1009 | if (!*rfk) { | |
1010 | printk(TPACPI_ERR | |
1011 | "failed to allocate memory for rfkill class\n"); | |
1012 | return -ENOMEM; | |
1013 | } | |
1014 | ||
1015 | (*rfk)->name = name; | |
1016 | (*rfk)->get_state = get_state; | |
1017 | (*rfk)->toggle_radio = toggle_radio; | |
90d9d3c7 | 1018 | (*rfk)->state = initial_state; |
0e74dc26 HMH |
1019 | |
1020 | res = rfkill_register(*rfk); | |
1021 | if (res < 0) { | |
1022 | printk(TPACPI_ERR | |
1023 | "failed to register %s rfkill switch: %d\n", | |
1024 | name, res); | |
1025 | rfkill_free(*rfk); | |
1026 | *rfk = NULL; | |
1027 | return res; | |
1028 | } | |
1029 | ||
1030 | return 0; | |
1031 | } | |
1032 | ||
56b6aeb0 | 1033 | /************************************************************************* |
b21a15f6 | 1034 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1035 | */ |
1036 | ||
b21a15f6 HMH |
1037 | /* interface_version --------------------------------------------------- */ |
1038 | static ssize_t tpacpi_driver_interface_version_show( | |
1039 | struct device_driver *drv, | |
1040 | char *buf) | |
1da177e4 | 1041 | { |
b21a15f6 HMH |
1042 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1043 | } | |
1044 | ||
1045 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1046 | tpacpi_driver_interface_version_show, NULL); | |
1047 | ||
1048 | /* debug_level --------------------------------------------------------- */ | |
1049 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1050 | char *buf) | |
1051 | { | |
1052 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1053 | } | |
1054 | ||
1055 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1056 | const char *buf, size_t count) | |
1057 | { | |
1058 | unsigned long t; | |
1059 | ||
1060 | if (parse_strtoul(buf, 0xffff, &t)) | |
1061 | return -EINVAL; | |
1062 | ||
1063 | dbg_level = t; | |
1064 | ||
1065 | return count; | |
1066 | } | |
1067 | ||
1068 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1069 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1070 | ||
1071 | /* version ------------------------------------------------------------- */ | |
1072 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1073 | char *buf) | |
1074 | { | |
35ff8b9f HMH |
1075 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1076 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1077 | } |
1078 | ||
1079 | static DRIVER_ATTR(version, S_IRUGO, | |
1080 | tpacpi_driver_version_show, NULL); | |
1081 | ||
1082 | /* --------------------------------------------------------------------- */ | |
1083 | ||
a73f3091 HMH |
1084 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1085 | ||
1086 | static void tpacpi_send_radiosw_update(void); | |
1087 | ||
1088 | /* wlsw_emulstate ------------------------------------------------------ */ | |
1089 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1090 | char *buf) | |
1091 | { | |
1092 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1093 | } | |
1094 | ||
1095 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1096 | const char *buf, size_t count) | |
1097 | { | |
1098 | unsigned long t; | |
1099 | ||
1100 | if (parse_strtoul(buf, 1, &t)) | |
1101 | return -EINVAL; | |
1102 | ||
1103 | if (tpacpi_wlsw_emulstate != t) { | |
1104 | tpacpi_wlsw_emulstate = !!t; | |
1105 | tpacpi_send_radiosw_update(); | |
1106 | } else | |
1107 | tpacpi_wlsw_emulstate = !!t; | |
1108 | ||
1109 | return count; | |
1110 | } | |
1111 | ||
1112 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1113 | tpacpi_driver_wlsw_emulstate_show, | |
1114 | tpacpi_driver_wlsw_emulstate_store); | |
1115 | ||
1116 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1117 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1118 | struct device_driver *drv, | |
1119 | char *buf) | |
1120 | { | |
1121 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1122 | } | |
1123 | ||
1124 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1125 | struct device_driver *drv, | |
1126 | const char *buf, size_t count) | |
1127 | { | |
1128 | unsigned long t; | |
1129 | ||
1130 | if (parse_strtoul(buf, 1, &t)) | |
1131 | return -EINVAL; | |
1132 | ||
1133 | tpacpi_bluetooth_emulstate = !!t; | |
1134 | ||
1135 | return count; | |
1136 | } | |
1137 | ||
1138 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1139 | tpacpi_driver_bluetooth_emulstate_show, | |
1140 | tpacpi_driver_bluetooth_emulstate_store); | |
1141 | ||
1142 | /* wwan_emulstate ------------------------------------------------- */ | |
1143 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1144 | struct device_driver *drv, | |
1145 | char *buf) | |
1146 | { | |
1147 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1148 | } | |
1149 | ||
1150 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1151 | struct device_driver *drv, | |
1152 | const char *buf, size_t count) | |
1153 | { | |
1154 | unsigned long t; | |
1155 | ||
1156 | if (parse_strtoul(buf, 1, &t)) | |
1157 | return -EINVAL; | |
1158 | ||
1159 | tpacpi_wwan_emulstate = !!t; | |
1160 | ||
1161 | return count; | |
1162 | } | |
1163 | ||
1164 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1165 | tpacpi_driver_wwan_emulstate_show, | |
1166 | tpacpi_driver_wwan_emulstate_store); | |
1167 | ||
0045c0aa HMH |
1168 | /* uwb_emulstate ------------------------------------------------- */ |
1169 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1170 | struct device_driver *drv, | |
1171 | char *buf) | |
1172 | { | |
1173 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1174 | } | |
1175 | ||
1176 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1177 | struct device_driver *drv, | |
1178 | const char *buf, size_t count) | |
1179 | { | |
1180 | unsigned long t; | |
1181 | ||
1182 | if (parse_strtoul(buf, 1, &t)) | |
1183 | return -EINVAL; | |
1184 | ||
1185 | tpacpi_uwb_emulstate = !!t; | |
1186 | ||
1187 | return count; | |
1188 | } | |
1189 | ||
1190 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1191 | tpacpi_driver_uwb_emulstate_show, | |
1192 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1193 | #endif |
1194 | ||
1195 | /* --------------------------------------------------------------------- */ | |
1196 | ||
35ff8b9f | 1197 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1198 | &driver_attr_debug_level, &driver_attr_version, |
1199 | &driver_attr_interface_version, | |
1200 | }; | |
1201 | ||
1202 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1203 | { | |
1204 | int i, res; | |
1205 | ||
1206 | i = 0; | |
1207 | res = 0; | |
1208 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1209 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1210 | i++; | |
1211 | } | |
1212 | ||
a73f3091 HMH |
1213 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1214 | if (!res && dbg_wlswemul) | |
1215 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1216 | if (!res && dbg_bluetoothemul) | |
1217 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1218 | if (!res && dbg_wwanemul) | |
1219 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1220 | if (!res && dbg_uwbemul) |
1221 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1222 | #endif |
1223 | ||
b21a15f6 HMH |
1224 | return res; |
1225 | } | |
1226 | ||
1227 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1228 | { | |
1229 | int i; | |
1230 | ||
35ff8b9f | 1231 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1232 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1233 | |
1234 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1235 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1236 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1237 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1238 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1239 | #endif |
b21a15f6 HMH |
1240 | } |
1241 | ||
1242 | /**************************************************************************** | |
1243 | **************************************************************************** | |
1244 | * | |
1245 | * Subdrivers | |
1246 | * | |
1247 | **************************************************************************** | |
1248 | ****************************************************************************/ | |
1249 | ||
1250 | /************************************************************************* | |
1251 | * thinkpad-acpi init subdriver | |
1252 | */ | |
1253 | ||
1254 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1255 | { | |
e0c7dfe7 HMH |
1256 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1257 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1258 | |
e0c7dfe7 | 1259 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1260 | (thinkpad_id.bios_version_str) ? |
1261 | thinkpad_id.bios_version_str : "unknown", | |
1262 | (thinkpad_id.ec_version_str) ? | |
1263 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1264 | |
1265 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1266 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1267 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1268 | "IBM" : ((thinkpad_id.vendor == | |
1269 | PCI_VENDOR_ID_LENOVO) ? | |
1270 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1271 | thinkpad_id.model_str, |
1272 | (thinkpad_id.nummodel_str) ? | |
1273 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1274 | |
1da177e4 LT |
1275 | return 0; |
1276 | } | |
1277 | ||
643f12db | 1278 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1279 | { |
1280 | int len = 0; | |
1281 | ||
e0c7dfe7 HMH |
1282 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1283 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1284 | |
1285 | return len; | |
1286 | } | |
1287 | ||
a5763f22 HMH |
1288 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1289 | .name = "driver", | |
1290 | .read = thinkpad_acpi_driver_read, | |
1291 | }; | |
1292 | ||
56b6aeb0 HMH |
1293 | /************************************************************************* |
1294 | * Hotkey subdriver | |
1295 | */ | |
1296 | ||
f74a27d4 HMH |
1297 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1298 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1299 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1300 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1301 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1302 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1303 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1304 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1305 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1306 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1307 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1308 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1309 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1310 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1311 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1312 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1313 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1314 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1315 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1316 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1317 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1318 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1319 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1320 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1321 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1322 | }; | |
1323 | ||
01e88f25 HMH |
1324 | enum { /* Keys available through NVRAM polling */ |
1325 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1326 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1327 | }; | |
1328 | ||
1329 | enum { /* Positions of some of the keys in hotkey masks */ | |
1330 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1331 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1332 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1333 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1334 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1335 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1336 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1337 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1338 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1339 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1340 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1341 | }; | |
1342 | ||
1343 | enum { /* NVRAM to ACPI HKEY group map */ | |
1344 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1345 | TP_ACPI_HKEY_ZOOM_MASK | | |
1346 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1347 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1348 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1349 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1350 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1351 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1352 | TP_ACPI_HKEY_MUTE_MASK, | |
1353 | }; | |
1354 | ||
1355 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1356 | struct tp_nvram_state { | |
1357 | u16 thinkpad_toggle:1; | |
1358 | u16 zoom_toggle:1; | |
1359 | u16 display_toggle:1; | |
1360 | u16 thinklight_toggle:1; | |
1361 | u16 hibernate_toggle:1; | |
1362 | u16 displayexp_toggle:1; | |
1363 | u16 display_state:1; | |
1364 | u16 brightness_toggle:1; | |
1365 | u16 volume_toggle:1; | |
1366 | u16 mute:1; | |
1367 | ||
1368 | u8 brightness_level; | |
1369 | u8 volume_level; | |
1370 | }; | |
1371 | ||
1372 | static struct task_struct *tpacpi_hotkey_task; | |
1373 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1374 | static int hotkey_poll_freq = 10; /* Hz */ | |
1375 | static struct mutex hotkey_thread_mutex; | |
1376 | static struct mutex hotkey_thread_data_mutex; | |
1377 | static unsigned int hotkey_config_change; | |
1378 | ||
1379 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1380 | ||
1381 | #define hotkey_source_mask 0U | |
1382 | ||
1383 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1384 | ||
f74a27d4 HMH |
1385 | static struct mutex hotkey_mutex; |
1386 | ||
a713b4d7 HMH |
1387 | static enum { /* Reasons for waking up */ |
1388 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1389 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1390 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1391 | } hotkey_wakeup_reason; | |
1392 | ||
1393 | static int hotkey_autosleep_ack; | |
1394 | ||
78f81cc4 | 1395 | static int hotkey_orig_status; |
ae92bd17 | 1396 | static u32 hotkey_orig_mask; |
9b010de5 | 1397 | static u32 hotkey_all_mask; |
6a38abbf | 1398 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1399 | static u32 hotkey_mask; |
6a38abbf | 1400 | |
b21a15f6 HMH |
1401 | static unsigned int hotkey_report_mode; |
1402 | ||
edf0e0e5 | 1403 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1404 | |
94954cc6 | 1405 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1406 | |
01e88f25 HMH |
1407 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1408 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1409 | do { \ |
1410 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1411 | hotkey_config_change++; \ | |
1412 | } while (0); | |
01e88f25 HMH |
1413 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1414 | mutex_unlock(&hotkey_thread_data_mutex); | |
1415 | #else | |
1416 | #define HOTKEY_CONFIG_CRITICAL_START | |
1417 | #define HOTKEY_CONFIG_CRITICAL_END | |
1418 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1419 | ||
6c231bd5 HMH |
1420 | /* HKEY.MHKG() return bits */ |
1421 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1422 | ||
74941a69 HMH |
1423 | static int hotkey_get_wlsw(int *status) |
1424 | { | |
a73f3091 HMH |
1425 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1426 | if (dbg_wlswemul) { | |
1427 | *status = !!tpacpi_wlsw_emulstate; | |
1428 | return 0; | |
1429 | } | |
1430 | #endif | |
74941a69 HMH |
1431 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) |
1432 | return -EIO; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
6c231bd5 HMH |
1436 | static int hotkey_get_tablet_mode(int *status) |
1437 | { | |
1438 | int s; | |
1439 | ||
1440 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1441 | return -EIO; | |
1442 | ||
cee47f5a HMH |
1443 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1444 | return 0; | |
6c231bd5 HMH |
1445 | } |
1446 | ||
b2c985e7 HMH |
1447 | /* |
1448 | * Call with hotkey_mutex held | |
1449 | */ | |
1450 | static int hotkey_mask_get(void) | |
1451 | { | |
01e88f25 HMH |
1452 | u32 m = 0; |
1453 | ||
b2c985e7 | 1454 | if (tp_features.hotkey_mask) { |
01e88f25 | 1455 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1456 | return -EIO; |
1457 | } | |
01e88f25 | 1458 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1459 | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | * Call with hotkey_mutex held | |
1465 | */ | |
1466 | static int hotkey_mask_set(u32 mask) | |
1467 | { | |
1468 | int i; | |
1469 | int rc = 0; | |
1470 | ||
1471 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1472 | if (!tp_warned.hotkey_mask_ff && |
1473 | (mask == 0xffff || mask == 0xffffff || | |
1474 | mask == 0xffffffff)) { | |
1475 | tp_warned.hotkey_mask_ff = 1; | |
1476 | printk(TPACPI_NOTICE | |
1477 | "setting the hotkey mask to 0x%08x is likely " | |
1478 | "not the best way to go about it\n", mask); | |
1479 | printk(TPACPI_NOTICE | |
1480 | "please consider using the driver defaults, " | |
1481 | "and refer to up-to-date thinkpad-acpi " | |
1482 | "documentation\n"); | |
1483 | } | |
1484 | ||
01e88f25 | 1485 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1486 | for (i = 0; i < 32; i++) { |
1487 | u32 m = 1 << i; | |
01e88f25 HMH |
1488 | /* enable in firmware mask only keys not in NVRAM |
1489 | * mode, but enable the key in the cached hotkey_mask | |
1490 | * regardless of mode, or the key will end up | |
1491 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1492 | if (!acpi_evalf(hkey_handle, |
1493 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1494 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1495 | rc = -EIO; |
1496 | break; | |
1497 | } else { | |
1498 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1499 | } | |
1500 | } | |
01e88f25 | 1501 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1502 | |
1503 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1504 | if (!hotkey_mask_get() && !rc && |
1505 | (hotkey_mask & ~hotkey_source_mask) != | |
1506 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1507 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1508 | "requested hot key mask 0x%08x, but " |
1509 | "firmware forced it to 0x%08x\n", | |
1510 | mask, hotkey_mask); | |
1511 | } | |
01e88f25 HMH |
1512 | } else { |
1513 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1514 | HOTKEY_CONFIG_CRITICAL_START | |
1515 | hotkey_mask = mask & hotkey_source_mask; | |
1516 | HOTKEY_CONFIG_CRITICAL_END | |
1517 | hotkey_mask_get(); | |
1518 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1519 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1520 | "requested hot key mask 0x%08x, " |
1521 | "forced to 0x%08x (NVRAM poll mask is " | |
1522 | "0x%08x): no firmware mask support\n", | |
1523 | mask, hotkey_mask, hotkey_source_mask); | |
1524 | } | |
1525 | #else | |
1526 | hotkey_mask_get(); | |
1527 | rc = -ENXIO; | |
1528 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1529 | } |
1530 | ||
1531 | return rc; | |
1532 | } | |
1533 | ||
1534 | static int hotkey_status_get(int *status) | |
1535 | { | |
1536 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1537 | return -EIO; | |
1538 | ||
1539 | return 0; | |
1540 | } | |
1541 | ||
1542 | static int hotkey_status_set(int status) | |
1543 | { | |
1544 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1545 | return -EIO; | |
1546 | ||
1547 | return 0; | |
1548 | } | |
1549 | ||
6c231bd5 | 1550 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1551 | { |
6c231bd5 | 1552 | int state; |
b3ec6f91 | 1553 | |
6c231bd5 HMH |
1554 | if (tp_features.hotkey_tablet && |
1555 | !hotkey_get_tablet_mode(&state)) { | |
1556 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1557 | |
6c231bd5 HMH |
1558 | input_report_switch(tpacpi_inputdev, |
1559 | SW_TABLET_MODE, !!state); | |
1560 | input_sync(tpacpi_inputdev); | |
1561 | ||
1562 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1563 | } | |
b3ec6f91 HMH |
1564 | } |
1565 | ||
b7c8c200 HMH |
1566 | static void tpacpi_input_send_key(unsigned int scancode) |
1567 | { | |
1568 | unsigned int keycode; | |
1569 | ||
1570 | keycode = hotkey_keycode_map[scancode]; | |
1571 | ||
1572 | if (keycode != KEY_RESERVED) { | |
1573 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1574 | ||
1575 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1576 | if (keycode == KEY_UNKNOWN) | |
1577 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1578 | scancode); | |
1579 | input_sync(tpacpi_inputdev); | |
1580 | ||
1581 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1582 | if (keycode == KEY_UNKNOWN) | |
1583 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1584 | scancode); | |
1585 | input_sync(tpacpi_inputdev); | |
1586 | ||
1587 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1588 | } | |
1589 | } | |
1590 | ||
01e88f25 HMH |
1591 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1592 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1593 | ||
1594 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1595 | { | |
1596 | tpacpi_input_send_key(scancode); | |
1597 | if (hotkey_report_mode < 2) { | |
1598 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1599 | 0x80, 0x1001 + scancode); | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1604 | { | |
1605 | u8 d; | |
1606 | ||
1607 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1608 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1609 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1610 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1611 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1612 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1613 | } | |
1614 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1615 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1616 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1617 | } | |
1618 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1619 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1620 | n->displayexp_toggle = | |
1621 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1622 | } | |
1623 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1624 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1625 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1626 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1627 | n->brightness_toggle = | |
1628 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1629 | } | |
1630 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1631 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1632 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1633 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1634 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1635 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1640 | do { \ |
1641 | if ((mask & (1 << __scancode)) && \ | |
1642 | oldn->__member != newn->__member) \ | |
1643 | tpacpi_hotkey_send_key(__scancode); \ | |
1644 | } while (0) | |
01e88f25 HMH |
1645 | |
1646 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1647 | do { if (mask & (1 << __scancode)) \ | |
1648 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1649 | ||
1650 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1651 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1652 | u32 mask) |
1653 | { | |
1654 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1655 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1656 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1657 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1658 | ||
1659 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1660 | ||
1661 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1662 | ||
1663 | /* handle volume */ | |
1664 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1665 | if (oldn->mute != newn->mute) { | |
1666 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1667 | } | |
1668 | if (oldn->volume_level > newn->volume_level) { | |
1669 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1670 | } else if (oldn->volume_level < newn->volume_level) { | |
1671 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1672 | } else if (oldn->mute == newn->mute) { | |
1673 | /* repeated key presses that didn't change state */ | |
1674 | if (newn->mute) { | |
1675 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1676 | } else if (newn->volume_level != 0) { | |
1677 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1678 | } else { | |
1679 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1680 | } | |
1681 | } | |
1682 | } | |
1683 | ||
1684 | /* handle brightness */ | |
1685 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1686 | if (oldn->brightness_level < newn->brightness_level) { | |
1687 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1688 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1689 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1690 | } else { | |
1691 | /* repeated key presses that didn't change state */ | |
1692 | if (newn->brightness_level != 0) { | |
1693 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1694 | } else { | |
1695 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1696 | } | |
1697 | } | |
1698 | } | |
1699 | } | |
1700 | ||
1701 | #undef TPACPI_COMPARE_KEY | |
1702 | #undef TPACPI_MAY_SEND_KEY | |
1703 | ||
1704 | static int hotkey_kthread(void *data) | |
1705 | { | |
1706 | struct tp_nvram_state s[2]; | |
1707 | u32 mask; | |
1708 | unsigned int si, so; | |
1709 | unsigned long t; | |
1710 | unsigned int change_detector, must_reset; | |
1711 | ||
1712 | mutex_lock(&hotkey_thread_mutex); | |
1713 | ||
1714 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1715 | goto exit; | |
1716 | ||
1717 | set_freezable(); | |
1718 | ||
1719 | so = 0; | |
1720 | si = 1; | |
1721 | t = 0; | |
1722 | ||
1723 | /* Initial state for compares */ | |
1724 | mutex_lock(&hotkey_thread_data_mutex); | |
1725 | change_detector = hotkey_config_change; | |
1726 | mask = hotkey_source_mask & hotkey_mask; | |
1727 | mutex_unlock(&hotkey_thread_data_mutex); | |
1728 | hotkey_read_nvram(&s[so], mask); | |
1729 | ||
1730 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1731 | if (t == 0) | |
1732 | t = 1000/hotkey_poll_freq; | |
1733 | t = msleep_interruptible(t); | |
1734 | if (unlikely(kthread_should_stop())) | |
1735 | break; | |
1736 | must_reset = try_to_freeze(); | |
1737 | if (t > 0 && !must_reset) | |
1738 | continue; | |
1739 | ||
1740 | mutex_lock(&hotkey_thread_data_mutex); | |
1741 | if (must_reset || hotkey_config_change != change_detector) { | |
1742 | /* forget old state on thaw or config change */ | |
1743 | si = so; | |
1744 | t = 0; | |
1745 | change_detector = hotkey_config_change; | |
1746 | } | |
1747 | mask = hotkey_source_mask & hotkey_mask; | |
1748 | mutex_unlock(&hotkey_thread_data_mutex); | |
1749 | ||
1750 | if (likely(mask)) { | |
1751 | hotkey_read_nvram(&s[si], mask); | |
1752 | if (likely(si != so)) { | |
1753 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1754 | mask); |
01e88f25 HMH |
1755 | } |
1756 | } | |
1757 | ||
1758 | so = si; | |
1759 | si ^= 1; | |
1760 | } | |
1761 | ||
1762 | exit: | |
1763 | mutex_unlock(&hotkey_thread_mutex); | |
1764 | return 0; | |
1765 | } | |
1766 | ||
1767 | static void hotkey_poll_stop_sync(void) | |
1768 | { | |
1769 | if (tpacpi_hotkey_task) { | |
1770 | if (frozen(tpacpi_hotkey_task) || | |
1771 | freezing(tpacpi_hotkey_task)) | |
1772 | thaw_process(tpacpi_hotkey_task); | |
1773 | ||
1774 | kthread_stop(tpacpi_hotkey_task); | |
1775 | tpacpi_hotkey_task = NULL; | |
1776 | mutex_lock(&hotkey_thread_mutex); | |
1777 | /* at this point, the thread did exit */ | |
1778 | mutex_unlock(&hotkey_thread_mutex); | |
1779 | } | |
1780 | } | |
1781 | ||
1782 | /* call with hotkey_mutex held */ | |
1783 | static void hotkey_poll_setup(int may_warn) | |
1784 | { | |
1785 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1786 | hotkey_poll_freq > 0 && | |
1787 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1788 | if (!tpacpi_hotkey_task) { | |
1789 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 1790 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
1791 | if (IS_ERR(tpacpi_hotkey_task)) { |
1792 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1793 | printk(TPACPI_ERR |
1794 | "could not create kernel thread " | |
01e88f25 HMH |
1795 | "for hotkey polling\n"); |
1796 | } | |
1797 | } | |
1798 | } else { | |
1799 | hotkey_poll_stop_sync(); | |
1800 | if (may_warn && | |
1801 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1802 | printk(TPACPI_NOTICE |
1803 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1804 | "which is currently disabled\n", |
1805 | hotkey_source_mask); | |
1806 | } | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | static void hotkey_poll_setup_safe(int may_warn) | |
1811 | { | |
1812 | mutex_lock(&hotkey_mutex); | |
1813 | hotkey_poll_setup(may_warn); | |
1814 | mutex_unlock(&hotkey_mutex); | |
1815 | } | |
1816 | ||
1bc6b9cd HMH |
1817 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1818 | ||
1819 | static void hotkey_poll_setup_safe(int __unused) | |
1820 | { | |
1821 | } | |
1822 | ||
1823 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1824 | ||
01e88f25 HMH |
1825 | static int hotkey_inputdev_open(struct input_dev *dev) |
1826 | { | |
1827 | switch (tpacpi_lifecycle) { | |
1828 | case TPACPI_LIFE_INIT: | |
1829 | /* | |
1830 | * hotkey_init will call hotkey_poll_setup_safe | |
1831 | * at the appropriate moment | |
1832 | */ | |
1833 | return 0; | |
1834 | case TPACPI_LIFE_EXITING: | |
1835 | return -EBUSY; | |
1836 | case TPACPI_LIFE_RUNNING: | |
1837 | hotkey_poll_setup_safe(0); | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1842 | BUG(); | |
1843 | return -EBUSY; | |
1844 | } | |
1845 | ||
1846 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1847 | { | |
1848 | /* disable hotkey polling when possible */ | |
1849 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1850 | hotkey_poll_setup_safe(0); | |
1851 | } | |
01e88f25 | 1852 | |
a0416420 HMH |
1853 | /* sysfs hotkey enable ------------------------------------------------- */ |
1854 | static ssize_t hotkey_enable_show(struct device *dev, | |
1855 | struct device_attribute *attr, | |
1856 | char *buf) | |
1857 | { | |
ae92bd17 | 1858 | int res, status; |
a0416420 | 1859 | |
b2c985e7 | 1860 | res = hotkey_status_get(&status); |
a0416420 HMH |
1861 | if (res) |
1862 | return res; | |
1863 | ||
1864 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1865 | } | |
1866 | ||
1867 | static ssize_t hotkey_enable_store(struct device *dev, | |
1868 | struct device_attribute *attr, | |
1869 | const char *buf, size_t count) | |
1870 | { | |
1871 | unsigned long t; | |
b2c985e7 | 1872 | int res; |
a0416420 HMH |
1873 | |
1874 | if (parse_strtoul(buf, 1, &t)) | |
1875 | return -EINVAL; | |
1876 | ||
b2c985e7 | 1877 | res = hotkey_status_set(t); |
a0416420 HMH |
1878 | |
1879 | return (res) ? res : count; | |
1880 | } | |
1881 | ||
1882 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1883 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1884 | hotkey_enable_show, hotkey_enable_store); |
1885 | ||
1886 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1887 | static ssize_t hotkey_mask_show(struct device *dev, | |
1888 | struct device_attribute *attr, | |
1889 | char *buf) | |
1890 | { | |
b2c985e7 | 1891 | int res; |
a0416420 | 1892 | |
7646ea88 | 1893 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
1894 | return -ERESTARTSYS; |
1895 | res = hotkey_mask_get(); | |
1896 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1897 | |
b2c985e7 HMH |
1898 | return (res)? |
1899 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1900 | } |
1901 | ||
1902 | static ssize_t hotkey_mask_store(struct device *dev, | |
1903 | struct device_attribute *attr, | |
1904 | const char *buf, size_t count) | |
1905 | { | |
1906 | unsigned long t; | |
b2c985e7 | 1907 | int res; |
a0416420 | 1908 | |
ae92bd17 | 1909 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1910 | return -EINVAL; |
1911 | ||
7646ea88 | 1912 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
1913 | return -ERESTARTSYS; |
1914 | ||
1915 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1916 | |
1917 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1918 | hotkey_poll_setup(1); | |
1919 | #endif | |
1920 | ||
b2c985e7 | 1921 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1922 | |
1923 | return (res) ? res : count; | |
1924 | } | |
1925 | ||
1926 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1927 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1928 | hotkey_mask_show, hotkey_mask_store); |
1929 | ||
1930 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1931 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1932 | struct device_attribute *attr, | |
1933 | char *buf) | |
1934 | { | |
1935 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1936 | } | |
1937 | ||
1938 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1939 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1940 | |
1941 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1942 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1943 | struct device_attribute *attr, | |
1944 | char *buf) | |
1945 | { | |
ae92bd17 | 1946 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1947 | } |
1948 | ||
1949 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1950 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1951 | |
9b010de5 HMH |
1952 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1953 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1954 | struct device_attribute *attr, | |
1955 | char *buf) | |
1956 | { | |
01e88f25 HMH |
1957 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1958 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1959 | } |
1960 | ||
1961 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1962 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1963 | ||
1964 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1965 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1966 | struct device_attribute *attr, | |
1967 | char *buf) | |
1968 | { | |
1969 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1970 | (hotkey_all_mask | hotkey_source_mask) |
1971 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1972 | } |
1973 | ||
1974 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1975 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1976 | hotkey_recommended_mask_show, NULL); | |
1977 | ||
01e88f25 HMH |
1978 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1979 | ||
1980 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1981 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1982 | struct device_attribute *attr, | |
1983 | char *buf) | |
1984 | { | |
1985 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1986 | } | |
1987 | ||
1988 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1989 | struct device_attribute *attr, | |
1990 | const char *buf, size_t count) | |
1991 | { | |
1992 | unsigned long t; | |
1993 | ||
1994 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1995 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1996 | return -EINVAL; | |
1997 | ||
7646ea88 | 1998 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
1999 | return -ERESTARTSYS; |
2000 | ||
2001 | HOTKEY_CONFIG_CRITICAL_START | |
2002 | hotkey_source_mask = t; | |
2003 | HOTKEY_CONFIG_CRITICAL_END | |
2004 | ||
2005 | hotkey_poll_setup(1); | |
2006 | ||
2007 | mutex_unlock(&hotkey_mutex); | |
2008 | ||
2009 | return count; | |
2010 | } | |
2011 | ||
2012 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2013 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2014 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2015 | ||
2016 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2017 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2018 | struct device_attribute *attr, | |
2019 | char *buf) | |
2020 | { | |
2021 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2022 | } | |
2023 | ||
2024 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2025 | struct device_attribute *attr, | |
2026 | const char *buf, size_t count) | |
2027 | { | |
2028 | unsigned long t; | |
2029 | ||
2030 | if (parse_strtoul(buf, 25, &t)) | |
2031 | return -EINVAL; | |
2032 | ||
7646ea88 | 2033 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2034 | return -ERESTARTSYS; |
2035 | ||
2036 | hotkey_poll_freq = t; | |
2037 | ||
2038 | hotkey_poll_setup(1); | |
2039 | mutex_unlock(&hotkey_mutex); | |
2040 | ||
2041 | return count; | |
2042 | } | |
2043 | ||
2044 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2045 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2046 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2047 | ||
2048 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2049 | ||
50ebec09 | 2050 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2051 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2052 | struct device_attribute *attr, | |
2053 | char *buf) | |
2054 | { | |
2055 | int res, s; | |
2056 | res = hotkey_get_wlsw(&s); | |
2057 | if (res < 0) | |
2058 | return res; | |
2059 | ||
2060 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2061 | } | |
2062 | ||
2063 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2064 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2065 | ||
50ebec09 HMH |
2066 | static void hotkey_radio_sw_notify_change(void) |
2067 | { | |
2068 | if (tp_features.hotkey_wlsw) | |
2069 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2070 | "hotkey_radio_sw"); | |
2071 | } | |
2072 | ||
6c231bd5 HMH |
2073 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2074 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2075 | struct device_attribute *attr, | |
2076 | char *buf) | |
2077 | { | |
2078 | int res, s; | |
2079 | res = hotkey_get_tablet_mode(&s); | |
2080 | if (res < 0) | |
2081 | return res; | |
2082 | ||
2083 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2084 | } | |
2085 | ||
2086 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2087 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2088 | ||
2089 | static void hotkey_tablet_mode_notify_change(void) | |
2090 | { | |
2091 | if (tp_features.hotkey_tablet) | |
2092 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2093 | "hotkey_tablet_mode"); | |
2094 | } | |
2095 | ||
ff80f137 HMH |
2096 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2097 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2098 | struct device_attribute *attr, | |
2099 | char *buf) | |
2100 | { | |
2101 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2102 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2103 | } | |
2104 | ||
2105 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2106 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2107 | ||
50ebec09 | 2108 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2109 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2110 | struct device_attribute *attr, | |
2111 | char *buf) | |
2112 | { | |
2113 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2114 | } | |
2115 | ||
2116 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2117 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2118 | ||
1d5a2b54 | 2119 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
2120 | { |
2121 | if (tp_features.hotkey_mask) | |
2122 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2123 | "wakeup_reason"); | |
2124 | } | |
2125 | ||
2126 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2127 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2128 | struct device_attribute *attr, | |
2129 | char *buf) | |
2130 | { | |
2131 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2132 | } | |
2133 | ||
2134 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2135 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2136 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2137 | ||
1d5a2b54 | 2138 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
2139 | { |
2140 | if (tp_features.hotkey_mask) | |
2141 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2142 | "wakeup_hotunplug_complete"); | |
2143 | } | |
2144 | ||
a0416420 HMH |
2145 | /* --------------------------------------------------------------------- */ |
2146 | ||
ff80f137 HMH |
2147 | static struct attribute *hotkey_attributes[] __initdata = { |
2148 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2149 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 2150 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
2151 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2152 | &dev_attr_hotkey_mask.attr, | |
2153 | &dev_attr_hotkey_all_mask.attr, | |
2154 | &dev_attr_hotkey_recommended_mask.attr, | |
2155 | &dev_attr_hotkey_source_mask.attr, | |
2156 | &dev_attr_hotkey_poll_freq.attr, | |
2157 | #endif | |
ff80f137 HMH |
2158 | }; |
2159 | ||
2160 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 2161 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
2162 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2163 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
2164 | &dev_attr_hotkey_all_mask.attr, |
2165 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 2166 | #endif |
a713b4d7 HMH |
2167 | &dev_attr_hotkey_wakeup_reason.attr, |
2168 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
2169 | }; |
2170 | ||
0e74dc26 HMH |
2171 | static void bluetooth_update_rfk(void); |
2172 | static void wan_update_rfk(void); | |
0045c0aa | 2173 | static void uwb_update_rfk(void); |
733e27c1 HMH |
2174 | static void tpacpi_send_radiosw_update(void) |
2175 | { | |
2176 | int wlsw; | |
2177 | ||
0e74dc26 HMH |
2178 | /* Sync these BEFORE sending any rfkill events */ |
2179 | if (tp_features.bluetooth) | |
2180 | bluetooth_update_rfk(); | |
2181 | if (tp_features.wan) | |
2182 | wan_update_rfk(); | |
0045c0aa HMH |
2183 | if (tp_features.uwb) |
2184 | uwb_update_rfk(); | |
0e74dc26 | 2185 | |
733e27c1 HMH |
2186 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
2187 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2188 | ||
2189 | input_report_switch(tpacpi_inputdev, | |
2190 | SW_RFKILL_ALL, !!wlsw); | |
2191 | input_sync(tpacpi_inputdev); | |
2192 | ||
2193 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2194 | } | |
2195 | hotkey_radio_sw_notify_change(); | |
2196 | } | |
2197 | ||
9c0a76e1 HMH |
2198 | static void hotkey_exit(void) |
2199 | { | |
2200 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2201 | hotkey_poll_stop_sync(); | |
2202 | #endif | |
2203 | ||
2204 | if (hotkey_dev_attributes) | |
2205 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2206 | ||
2207 | kfree(hotkey_keycode_map); | |
2208 | ||
2209 | if (tp_features.hotkey) { | |
2210 | dbg_printk(TPACPI_DBG_EXIT, | |
2211 | "restoring original hot key mask\n"); | |
2212 | /* no short-circuit boolean operator below! */ | |
2213 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2214 | hotkey_status_set(hotkey_orig_status)) != 0) | |
2215 | printk(TPACPI_ERR | |
2216 | "failed to restore hot key mask " | |
2217 | "to BIOS defaults\n"); | |
2218 | } | |
2219 | } | |
2220 | ||
a5763f22 | 2221 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 2222 | { |
0f089147 HMH |
2223 | /* Requirements for changing the default keymaps: |
2224 | * | |
2225 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
2226 | * good reasons. Do not change them unless you have deep | |
2227 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
2228 | * the various ThinkPad models. The driver behaves | |
2229 | * differently for KEY_RESERVED: such keys have their | |
2230 | * hot key mask *unset* in mask_recommended, and also | |
2231 | * in the initial hot key mask programmed into the | |
2232 | * firmware at driver load time, which means the firm- | |
2233 | * ware may react very differently if you change them to | |
2234 | * something else; | |
2235 | * | |
2236 | * 2. You must be subscribed to the linux-thinkpad and | |
2237 | * ibm-acpi-devel mailing lists, and you should read the | |
2238 | * list archives since 2007 if you want to change the | |
2239 | * keymaps. This requirement exists so that you will | |
2240 | * know the past history of problems with the thinkpad- | |
2241 | * acpi driver keymaps, and also that you will be | |
2242 | * listening to any bug reports; | |
2243 | * | |
2244 | * 3. Do not send thinkpad-acpi specific patches directly to | |
2245 | * for merging, *ever*. Send them to the linux-acpi | |
2246 | * mailinglist for comments. Merging is to be done only | |
2247 | * through acpi-test and the ACPI maintainer. | |
2248 | * | |
2249 | * If the above is too much to ask, don't change the keymap. | |
2250 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
2251 | */ | |
edf0e0e5 HMH |
2252 | static u16 ibm_keycode_map[] __initdata = { |
2253 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2254 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
2255 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2256 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2257 | |
2258 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2259 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2260 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2261 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
2262 | |
2263 | /* brightness: firmware always reacts to them, unless | |
2264 | * X.org did some tricks in the radeon BIOS scratch | |
2265 | * registers of *some* models */ | |
e927c08d | 2266 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 2267 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
2268 | |
2269 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 2270 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2271 | |
edf0e0e5 HMH |
2272 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2273 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2274 | |
2275 | /* Volume: firmware always react to it and reprograms | |
2276 | * the built-in *extra* mixer. Never map it to control | |
2277 | * another mixer by default. */ | |
e927c08d HMH |
2278 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2279 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2280 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2281 | |
edf0e0e5 | 2282 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2283 | |
edf0e0e5 HMH |
2284 | /* (assignments unknown, please report if found) */ |
2285 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2286 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2287 | }; | |
2288 | static u16 lenovo_keycode_map[] __initdata = { | |
2289 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2290 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2291 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2292 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2293 | |
2294 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2295 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2296 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2297 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 2298 | |
b5972796 HMH |
2299 | /* These either have to go through ACPI video, or |
2300 | * act like in the IBM ThinkPads, so don't ever | |
2301 | * enable them by default */ | |
56a185b4 | 2302 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2303 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2304 | |
edf0e0e5 | 2305 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2306 | |
edf0e0e5 HMH |
2307 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2308 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2309 | |
2310 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2311 | * react to it and reprograms the built-in *extra* mixer. | |
2312 | * Never map it to control another mixer by default. | |
2313 | * | |
2314 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2315 | * these over the regular keyboard, so these are no-ops, | |
2316 | * but there are still weird bugs re. MUTE, so do not | |
2317 | * change unless you get test reports from all Lenovo | |
2318 | * models. May cause the BIOS to interfere with the | |
2319 | * HDA mixer. | |
2320 | */ | |
e927c08d HMH |
2321 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2322 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2323 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2324 | |
edf0e0e5 | 2325 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2326 | |
edf0e0e5 HMH |
2327 | /* (assignments unknown, please report if found) */ |
2328 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2329 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2330 | }; | |
2331 | ||
2332 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2333 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2334 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2335 | ||
6a38abbf | 2336 | int res, i; |
74941a69 | 2337 | int status; |
1b6521dc | 2338 | int hkeyv; |
b86c4722 | 2339 | |
fe08bc4b HMH |
2340 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2341 | ||
6a38abbf | 2342 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2343 | BUG_ON(tpacpi_inputdev->open != NULL || |
2344 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2345 | |
e0c7dfe7 | 2346 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2347 | mutex_init(&hotkey_mutex); |
5fba344c | 2348 | |
01e88f25 HMH |
2349 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2350 | mutex_init(&hotkey_thread_mutex); | |
2351 | mutex_init(&hotkey_thread_data_mutex); | |
2352 | #endif | |
2353 | ||
56b6aeb0 | 2354 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2355 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2356 | |
fe08bc4b | 2357 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2358 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2359 | |
9c0a76e1 HMH |
2360 | if (!tp_features.hotkey) |
2361 | return 1; | |
a0416420 | 2362 | |
d64c81c4 HMH |
2363 | tpacpi_disable_brightness_delay(); |
2364 | ||
9c0a76e1 HMH |
2365 | hotkey_dev_attributes = create_attr_set(13, NULL); |
2366 | if (!hotkey_dev_attributes) | |
2367 | return -ENOMEM; | |
2368 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
2369 | hotkey_attributes, | |
2370 | ARRAY_SIZE(hotkey_attributes)); | |
2371 | if (res) | |
2372 | goto err_exit; | |
2373 | ||
2374 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
2375 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking | |
2376 | for HKEY interface version 0x100 */ | |
2377 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2378 | if ((hkeyv >> 8) != 1) { | |
2379 | printk(TPACPI_ERR "unknown version of the " | |
2380 | "HKEY interface: 0x%x\n", hkeyv); | |
2381 | printk(TPACPI_ERR "please report this to %s\n", | |
2382 | TPACPI_MAIL); | |
2383 | } else { | |
2384 | /* | |
2385 | * MHKV 0x100 in A31, R40, R40e, | |
2386 | * T4x, X31, and later | |
2387 | */ | |
2388 | tp_features.hotkey_mask = 1; | |
1b6521dc | 2389 | } |
9c0a76e1 | 2390 | } |
56b6aeb0 | 2391 | |
9c0a76e1 HMH |
2392 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
2393 | str_supported(tp_features.hotkey_mask)); | |
fe08bc4b | 2394 | |
9c0a76e1 HMH |
2395 | if (tp_features.hotkey_mask) { |
2396 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
2397 | "MHKA", "qd")) { | |
2398 | printk(TPACPI_ERR | |
2399 | "missing MHKA handler, " | |
2400 | "please report this to %s\n", | |
2401 | TPACPI_MAIL); | |
2402 | /* FN+F12, FN+F4, FN+F3 */ | |
2403 | hotkey_all_mask = 0x080cU; | |
9b010de5 | 2404 | } |
9c0a76e1 | 2405 | } |
9b010de5 | 2406 | |
9c0a76e1 HMH |
2407 | /* hotkey_source_mask *must* be zero for |
2408 | * the first hotkey_mask_get */ | |
2409 | res = hotkey_status_get(&hotkey_orig_status); | |
2410 | if (res) | |
2411 | goto err_exit; | |
2412 | ||
2413 | if (tp_features.hotkey_mask) { | |
2414 | res = hotkey_mask_get(); | |
2415 | if (res) | |
2416 | goto err_exit; | |
2417 | ||
2418 | hotkey_orig_mask = hotkey_mask; | |
2419 | res = add_many_to_attr_set( | |
2420 | hotkey_dev_attributes, | |
2421 | hotkey_mask_attributes, | |
2422 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2423 | if (res) | |
2424 | goto err_exit; | |
2425 | } | |
74941a69 | 2426 | |
01e88f25 | 2427 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
9c0a76e1 HMH |
2428 | if (tp_features.hotkey_mask) { |
2429 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2430 | & ~hotkey_all_mask; | |
2431 | } else { | |
2432 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2433 | } | |
01e88f25 | 2434 | |
9c0a76e1 HMH |
2435 | vdbg_printk(TPACPI_DBG_INIT, |
2436 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2437 | hotkey_source_mask, hotkey_poll_freq); | |
01e88f25 HMH |
2438 | #endif |
2439 | ||
a73f3091 HMH |
2440 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2441 | if (dbg_wlswemul) { | |
2442 | tp_features.hotkey_wlsw = 1; | |
2443 | printk(TPACPI_INFO | |
2444 | "radio switch emulation enabled\n"); | |
2445 | } else | |
2446 | #endif | |
9c0a76e1 HMH |
2447 | /* Not all thinkpads have a hardware radio switch */ |
2448 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2449 | tp_features.hotkey_wlsw = 1; | |
2450 | printk(TPACPI_INFO | |
2451 | "radio switch found; radios are %s\n", | |
2452 | enabled(status, 0)); | |
3a872080 HMH |
2453 | } |
2454 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
2455 | res = add_to_attr_set(hotkey_dev_attributes, |
2456 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 2457 | |
9c0a76e1 HMH |
2458 | /* For X41t, X60t, X61t Tablets... */ |
2459 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2460 | tp_features.hotkey_tablet = 1; | |
2461 | printk(TPACPI_INFO | |
2462 | "possible tablet mode switch found; " | |
2463 | "ThinkPad in %s mode\n", | |
2464 | (status & TP_HOTKEY_TABLET_MASK)? | |
2465 | "tablet" : "laptop"); | |
2466 | res = add_to_attr_set(hotkey_dev_attributes, | |
2467 | &dev_attr_hotkey_tablet_mode.attr); | |
2468 | } | |
6c231bd5 | 2469 | |
9c0a76e1 HMH |
2470 | if (!res) |
2471 | res = register_attr_set_with_sysfs( | |
2472 | hotkey_dev_attributes, | |
2473 | &tpacpi_pdev->dev.kobj); | |
2474 | if (res) | |
2475 | goto err_exit; | |
6a38abbf | 2476 | |
9c0a76e1 | 2477 | /* Set up key map */ |
edf0e0e5 | 2478 | |
9c0a76e1 HMH |
2479 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
2480 | GFP_KERNEL); | |
2481 | if (!hotkey_keycode_map) { | |
2482 | printk(TPACPI_ERR | |
2483 | "failed to allocate memory for key map\n"); | |
2484 | res = -ENOMEM; | |
2485 | goto err_exit; | |
2486 | } | |
edf0e0e5 | 2487 | |
9c0a76e1 HMH |
2488 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
2489 | dbg_printk(TPACPI_DBG_INIT, | |
2490 | "using Lenovo default hot key map\n"); | |
2491 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2492 | TPACPI_HOTKEY_MAP_SIZE); | |
2493 | } else { | |
2494 | dbg_printk(TPACPI_DBG_INIT, | |
2495 | "using IBM default hot key map\n"); | |
2496 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2497 | TPACPI_HOTKEY_MAP_SIZE); | |
2498 | } | |
edf0e0e5 | 2499 | |
9c0a76e1 HMH |
2500 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2501 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2502 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
2503 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; | |
2504 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2505 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2506 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
2507 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
2508 | set_bit(hotkey_keycode_map[i], | |
2509 | tpacpi_inputdev->keybit); | |
2510 | } else { | |
2511 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2512 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 2513 | } |
9c0a76e1 | 2514 | } |
6a38abbf | 2515 | |
9c0a76e1 HMH |
2516 | if (tp_features.hotkey_wlsw) { |
2517 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2518 | set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); | |
2519 | } | |
2520 | if (tp_features.hotkey_tablet) { | |
2521 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2522 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2523 | } | |
5c29d58f | 2524 | |
9c0a76e1 HMH |
2525 | /* Do not issue duplicate brightness change events to |
2526 | * userspace */ | |
2527 | if (!tp_features.bright_acpimode) | |
2528 | /* update bright_acpimode... */ | |
2529 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 2530 | |
9c0a76e1 HMH |
2531 | if (tp_features.bright_acpimode) { |
2532 | printk(TPACPI_INFO | |
2533 | "This ThinkPad has standard ACPI backlight " | |
2534 | "brightness control, supported by the ACPI " | |
2535 | "video driver\n"); | |
2536 | printk(TPACPI_NOTICE | |
2537 | "Disabling thinkpad-acpi brightness events " | |
2538 | "by default...\n"); | |
2539 | ||
2540 | /* The hotkey_reserved_mask change below is not | |
2541 | * necessary while the keys are at KEY_RESERVED in the | |
2542 | * default map, but better safe than sorry, leave it | |
2543 | * here as a marker of what we have to do, especially | |
2544 | * when we finally become able to set this at runtime | |
2545 | * on response to X.org requests */ | |
2546 | hotkey_reserved_mask |= | |
2547 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2548 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2549 | } | |
ff80f137 | 2550 | |
9c0a76e1 HMH |
2551 | dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n"); |
2552 | res = hotkey_status_set(1); | |
2553 | if (res) { | |
2554 | hotkey_exit(); | |
2555 | return res; | |
2556 | } | |
2557 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) | |
2558 | & ~hotkey_reserved_mask) | |
2559 | | hotkey_orig_mask); | |
2560 | if (res < 0 && res != -ENXIO) { | |
2561 | hotkey_exit(); | |
2562 | return res; | |
2563 | } | |
01e88f25 | 2564 | |
9c0a76e1 HMH |
2565 | dbg_printk(TPACPI_DBG_INIT, |
2566 | "legacy hot key reporting over procfs %s\n", | |
2567 | (hotkey_report_mode < 2) ? | |
2568 | "enabled" : "disabled"); | |
01e88f25 | 2569 | |
9c0a76e1 HMH |
2570 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2571 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 2572 | |
9c0a76e1 | 2573 | hotkey_poll_setup_safe(1); |
733e27c1 | 2574 | tpacpi_send_radiosw_update(); |
9c0a76e1 | 2575 | tpacpi_input_send_tabletsw(); |
56b6aeb0 | 2576 | |
9c0a76e1 | 2577 | return 0; |
01e88f25 | 2578 | |
9c0a76e1 HMH |
2579 | err_exit: |
2580 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2581 | hotkey_dev_attributes = NULL; | |
a0416420 | 2582 | |
9c0a76e1 | 2583 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
2584 | } |
2585 | ||
3827e7a3 HMH |
2586 | static bool hotkey_notify_hotkey(const u32 hkey, |
2587 | bool *send_acpi_ev, | |
2588 | bool *ignore_acpi_ev) | |
2589 | { | |
2590 | /* 0x1000-0x1FFF: key presses */ | |
2591 | unsigned int scancode = hkey & 0xfff; | |
2592 | *send_acpi_ev = true; | |
2593 | *ignore_acpi_ev = false; | |
2594 | ||
2595 | if (scancode > 0 && scancode < 0x21) { | |
2596 | scancode--; | |
2597 | if (!(hotkey_source_mask & (1 << scancode))) { | |
2598 | tpacpi_input_send_key(scancode); | |
2599 | *send_acpi_ev = false; | |
2600 | } else { | |
2601 | *ignore_acpi_ev = true; | |
2602 | } | |
2603 | return true; | |
2604 | } | |
2605 | return false; | |
2606 | } | |
2607 | ||
2608 | static bool hotkey_notify_wakeup(const u32 hkey, | |
2609 | bool *send_acpi_ev, | |
2610 | bool *ignore_acpi_ev) | |
2611 | { | |
2612 | /* 0x2000-0x2FFF: Wakeup reason */ | |
2613 | *send_acpi_ev = true; | |
2614 | *ignore_acpi_ev = false; | |
2615 | ||
2616 | switch (hkey) { | |
2617 | case 0x2304: /* suspend, undock */ | |
2618 | case 0x2404: /* hibernation, undock */ | |
2619 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2620 | *ignore_acpi_ev = true; | |
2621 | break; | |
2622 | ||
2623 | case 0x2305: /* suspend, bay eject */ | |
2624 | case 0x2405: /* hibernation, bay eject */ | |
2625 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2626 | *ignore_acpi_ev = true; | |
2627 | break; | |
2628 | ||
106b4e66 HMH |
2629 | case 0x2313: /* Battery on critical low level (S3) */ |
2630 | case 0x2413: /* Battery on critical low level (S4) */ | |
2631 | printk(TPACPI_ALERT | |
2632 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
2633 | /* how to auto-heal: */ | |
2634 | /* 2313: woke up from S3, go to S4/S5 */ | |
2635 | /* 2413: woke up from S4, go to S5 */ | |
2636 | break; | |
2637 | ||
3827e7a3 HMH |
2638 | default: |
2639 | return false; | |
2640 | } | |
2641 | ||
2642 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2643 | printk(TPACPI_INFO | |
2644 | "woke up due to a hot-unplug " | |
2645 | "request...\n"); | |
2646 | hotkey_wakeup_reason_notify_change(); | |
2647 | } | |
2648 | return true; | |
2649 | } | |
2650 | ||
2651 | static bool hotkey_notify_usrevent(const u32 hkey, | |
2652 | bool *send_acpi_ev, | |
2653 | bool *ignore_acpi_ev) | |
2654 | { | |
2655 | /* 0x5000-0x5FFF: human interface helpers */ | |
2656 | *send_acpi_ev = true; | |
2657 | *ignore_acpi_ev = false; | |
2658 | ||
2659 | switch (hkey) { | |
2660 | case 0x5010: /* Lenovo new BIOS: brightness changed */ | |
2661 | case 0x500b: /* X61t: tablet pen inserted into bay */ | |
2662 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
2663 | return true; | |
2664 | ||
2665 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ | |
2666 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2667 | tpacpi_input_send_tabletsw(); | |
2668 | hotkey_tablet_mode_notify_change(); | |
2669 | *send_acpi_ev = false; | |
2670 | return true; | |
2671 | ||
2672 | case 0x5001: | |
2673 | case 0x5002: | |
2674 | /* LID switch events. Do not propagate */ | |
2675 | *ignore_acpi_ev = true; | |
2676 | return true; | |
2677 | ||
2678 | default: | |
2679 | return false; | |
2680 | } | |
2681 | } | |
2682 | ||
106b4e66 HMH |
2683 | static bool hotkey_notify_thermal(const u32 hkey, |
2684 | bool *send_acpi_ev, | |
2685 | bool *ignore_acpi_ev) | |
2686 | { | |
2687 | /* 0x6000-0x6FFF: thermal alarms */ | |
2688 | *send_acpi_ev = true; | |
2689 | *ignore_acpi_ev = false; | |
2690 | ||
2691 | switch (hkey) { | |
2692 | case 0x6011: | |
2693 | printk(TPACPI_CRIT | |
2694 | "THERMAL ALARM: battery is too hot!\n"); | |
2695 | /* recommended action: warn user through gui */ | |
2696 | return true; | |
2697 | case 0x6012: | |
2698 | printk(TPACPI_ALERT | |
2699 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
2700 | /* recommended action: immediate sleep/hibernate */ | |
2701 | return true; | |
2702 | case 0x6021: | |
2703 | printk(TPACPI_CRIT | |
2704 | "THERMAL ALARM: " | |
2705 | "a sensor reports something is too hot!\n"); | |
2706 | /* recommended action: warn user through gui, that */ | |
2707 | /* some internal component is too hot */ | |
2708 | return true; | |
2709 | case 0x6022: | |
2710 | printk(TPACPI_ALERT | |
2711 | "THERMAL EMERGENCY: " | |
2712 | "a sensor reports something is extremely hot!\n"); | |
2713 | /* recommended action: immediate sleep/hibernate */ | |
2714 | return true; | |
54926ce8 HMH |
2715 | case 0x6030: |
2716 | printk(TPACPI_INFO | |
2717 | "EC reports that Thermal Table has changed\n"); | |
2718 | /* recommended action: do nothing, we don't have | |
2719 | * Lenovo ATM information */ | |
2720 | return true; | |
106b4e66 HMH |
2721 | default: |
2722 | printk(TPACPI_ALERT | |
2723 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
2724 | return false; | |
2725 | } | |
2726 | } | |
2727 | ||
56b6aeb0 HMH |
2728 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
2729 | { | |
6a38abbf | 2730 | u32 hkey; |
3827e7a3 HMH |
2731 | bool send_acpi_ev; |
2732 | bool ignore_acpi_ev; | |
2733 | bool known_ev; | |
3eea123d HMH |
2734 | |
2735 | if (event != 0x80) { | |
35ff8b9f HMH |
2736 | printk(TPACPI_ERR |
2737 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2738 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2739 | acpi_bus_generate_netlink_event( |
2740 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2741 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2742 | event, 0); |
3eea123d HMH |
2743 | return; |
2744 | } | |
2745 | ||
2746 | while (1) { | |
2747 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2748 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2749 | return; |
2750 | } | |
2751 | ||
2752 | if (hkey == 0) { | |
2753 | /* queue empty */ | |
2754 | return; | |
2755 | } | |
2756 | ||
3827e7a3 HMH |
2757 | send_acpi_ev = true; |
2758 | ignore_acpi_ev = false; | |
56b6aeb0 | 2759 | |
ff80f137 HMH |
2760 | switch (hkey >> 12) { |
2761 | case 1: | |
2762 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
2763 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
2764 | &ignore_acpi_ev); | |
ff80f137 | 2765 | break; |
a713b4d7 | 2766 | case 2: |
3827e7a3 HMH |
2767 | /* 0x2000-0x2FFF: Wakeup reason */ |
2768 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
2769 | &ignore_acpi_ev); | |
a713b4d7 HMH |
2770 | break; |
2771 | case 3: | |
3827e7a3 | 2772 | /* 0x3000-0x3FFF: bay-related wakeups */ |
a713b4d7 HMH |
2773 | if (hkey == 0x3003) { |
2774 | hotkey_autosleep_ack = 1; | |
2775 | printk(TPACPI_INFO | |
2776 | "bay ejected\n"); | |
50ebec09 | 2777 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 2778 | known_ev = true; |
a713b4d7 | 2779 | } else { |
3827e7a3 | 2780 | known_ev = false; |
a713b4d7 HMH |
2781 | } |
2782 | break; | |
2783 | case 4: | |
3827e7a3 | 2784 | /* 0x4000-0x4FFF: dock-related wakeups */ |
a713b4d7 HMH |
2785 | if (hkey == 0x4003) { |
2786 | hotkey_autosleep_ack = 1; | |
2787 | printk(TPACPI_INFO | |
2788 | "undocked\n"); | |
50ebec09 | 2789 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 2790 | known_ev = true; |
a713b4d7 | 2791 | } else { |
3827e7a3 | 2792 | known_ev = false; |
a713b4d7 HMH |
2793 | } |
2794 | break; | |
ff80f137 | 2795 | case 5: |
d1edb2b5 | 2796 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
2797 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
2798 | &ignore_acpi_ev); | |
ff80f137 | 2799 | break; |
106b4e66 HMH |
2800 | case 6: |
2801 | /* 0x6000-0x6FFF: thermal alarms */ | |
2802 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
2803 | &ignore_acpi_ev); | |
2804 | break; | |
ff80f137 HMH |
2805 | case 7: |
2806 | /* 0x7000-0x7FFF: misc */ | |
2807 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
733e27c1 | 2808 | tpacpi_send_radiosw_update(); |
3b64b51d | 2809 | send_acpi_ev = 0; |
3827e7a3 | 2810 | known_ev = true; |
6a38abbf | 2811 | break; |
6a38abbf | 2812 | } |
ff80f137 HMH |
2813 | /* fallthrough to default */ |
2814 | default: | |
3827e7a3 | 2815 | known_ev = false; |
3b64b51d | 2816 | } |
3827e7a3 | 2817 | if (!known_ev) { |
35ff8b9f HMH |
2818 | printk(TPACPI_NOTICE |
2819 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
2820 | printk(TPACPI_NOTICE |
2821 | "please report the conditions when this " | |
2822 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 2823 | } |
ff80f137 | 2824 | |
3eea123d | 2825 | /* Legacy events */ |
35ff8b9f HMH |
2826 | if (!ignore_acpi_ev && |
2827 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2828 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2829 | event, hkey); | |
3e5ce914 | 2830 | } |
ff80f137 | 2831 | |
3eea123d | 2832 | /* netlink events */ |
3e5ce914 | 2833 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2834 | acpi_bus_generate_netlink_event( |
2835 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2836 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2837 | event, hkey); |
3eea123d | 2838 | } |
56b6aeb0 HMH |
2839 | } |
2840 | } | |
2841 | ||
a713b4d7 HMH |
2842 | static void hotkey_suspend(pm_message_t state) |
2843 | { | |
2844 | /* Do these on suspend, we get the events on early resume! */ | |
2845 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2846 | hotkey_autosleep_ack = 0; | |
2847 | } | |
2848 | ||
5c29d58f HMH |
2849 | static void hotkey_resume(void) |
2850 | { | |
d64c81c4 HMH |
2851 | tpacpi_disable_brightness_delay(); |
2852 | ||
b2c985e7 | 2853 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2854 | printk(TPACPI_ERR |
2855 | "error while trying to read hot key mask " | |
2856 | "from firmware\n"); | |
733e27c1 | 2857 | tpacpi_send_radiosw_update(); |
6c231bd5 | 2858 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2859 | hotkey_wakeup_reason_notify_change(); |
2860 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2861 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2862 | } |
2863 | ||
a0416420 | 2864 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2865 | static int hotkey_read(char *p) |
1da177e4 | 2866 | { |
ae92bd17 | 2867 | int res, status; |
1da177e4 LT |
2868 | int len = 0; |
2869 | ||
d8fd94d9 | 2870 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2871 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2872 | return len; | |
2873 | } | |
2874 | ||
7646ea88 | 2875 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 2876 | return -ERESTARTSYS; |
b2c985e7 HMH |
2877 | res = hotkey_status_get(&status); |
2878 | if (!res) | |
2879 | res = hotkey_mask_get(); | |
40ca9fdf | 2880 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2881 | if (res) |
2882 | return res; | |
1da177e4 LT |
2883 | |
2884 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2885 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2886 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2887 | len += sprintf(p + len, |
2888 | "commands:\tenable, disable, reset, <mask>\n"); | |
2889 | } else { | |
2890 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2891 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2892 | } | |
2893 | ||
2894 | return len; | |
2895 | } | |
2896 | ||
78f81cc4 | 2897 | static int hotkey_write(char *buf) |
1da177e4 | 2898 | { |
ae92bd17 HMH |
2899 | int res, status; |
2900 | u32 mask; | |
1da177e4 | 2901 | char *cmd; |
1da177e4 | 2902 | |
d8fd94d9 | 2903 | if (!tp_features.hotkey) |
1da177e4 LT |
2904 | return -ENODEV; |
2905 | ||
7646ea88 | 2906 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 2907 | return -ERESTARTSYS; |
40ca9fdf | 2908 | |
b2c985e7 HMH |
2909 | status = -1; |
2910 | mask = hotkey_mask; | |
78f81cc4 | 2911 | |
40ca9fdf | 2912 | res = 0; |
1da177e4 LT |
2913 | while ((cmd = next_cmd(&buf))) { |
2914 | if (strlencmp(cmd, "enable") == 0) { | |
2915 | status = 1; | |
2916 | } else if (strlencmp(cmd, "disable") == 0) { | |
2917 | status = 0; | |
2918 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2919 | status = hotkey_orig_status; |
2920 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2921 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2922 | /* mask set */ | |
2923 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2924 | /* mask set */ | |
40ca9fdf HMH |
2925 | } else { |
2926 | res = -EINVAL; | |
2927 | goto errexit; | |
2928 | } | |
1da177e4 | 2929 | } |
b2c985e7 HMH |
2930 | if (status != -1) |
2931 | res = hotkey_status_set(status); | |
1da177e4 | 2932 | |
b2c985e7 HMH |
2933 | if (!res && mask != hotkey_mask) |
2934 | res = hotkey_mask_set(mask); | |
1da177e4 | 2935 | |
40ca9fdf HMH |
2936 | errexit: |
2937 | mutex_unlock(&hotkey_mutex); | |
2938 | return res; | |
78f81cc4 | 2939 | } |
1da177e4 | 2940 | |
1ba90e3a | 2941 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2942 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2943 | {"", 0}, |
2944 | }; | |
2945 | ||
8d376cd6 | 2946 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2947 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2948 | .notify = hotkey_notify, |
2949 | .handle = &hkey_handle, | |
2950 | .type = ACPI_DEVICE_NOTIFY, | |
2951 | }; | |
2952 | ||
a5763f22 HMH |
2953 | static struct ibm_struct hotkey_driver_data = { |
2954 | .name = "hotkey", | |
a5763f22 HMH |
2955 | .read = hotkey_read, |
2956 | .write = hotkey_write, | |
2957 | .exit = hotkey_exit, | |
5c29d58f | 2958 | .resume = hotkey_resume, |
a713b4d7 | 2959 | .suspend = hotkey_suspend, |
8d376cd6 | 2960 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2961 | }; |
2962 | ||
56b6aeb0 HMH |
2963 | /************************************************************************* |
2964 | * Bluetooth subdriver | |
2965 | */ | |
1da177e4 | 2966 | |
f74a27d4 HMH |
2967 | enum { |
2968 | /* ACPI GBDC/SBDC bits */ | |
2969 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2970 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 HMH |
2971 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
2972 | off / last state */ | |
2973 | }; | |
2974 | ||
2975 | enum { | |
2976 | /* ACPI \BLTH commands */ | |
2977 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
2978 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
2979 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
2980 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
2981 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
2982 | }; |
2983 | ||
0e74dc26 HMH |
2984 | static struct rfkill *tpacpi_bluetooth_rfkill; |
2985 | ||
153f8220 HMH |
2986 | static void bluetooth_suspend(pm_message_t state) |
2987 | { | |
2988 | /* Try to make sure radio will resume powered off */ | |
2989 | acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
2990 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME); | |
2991 | } | |
2992 | ||
07431ec8 HMH |
2993 | static int bluetooth_get_radiosw(void) |
2994 | { | |
2995 | int status; | |
2996 | ||
2997 | if (!tp_features.bluetooth) | |
2998 | return -ENODEV; | |
2999 | ||
133ec3bd HMH |
3000 | /* WLSW overrides bluetooth in firmware/hardware, reflect that */ |
3001 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 3002 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 3003 | |
a73f3091 HMH |
3004 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3005 | if (dbg_bluetoothemul) | |
3006 | return (tpacpi_bluetooth_emulstate) ? | |
3007 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3008 | #endif | |
3009 | ||
07431ec8 HMH |
3010 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3011 | return -EIO; | |
3012 | ||
0e74dc26 HMH |
3013 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
3014 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
3015 | } |
3016 | ||
0e74dc26 HMH |
3017 | static void bluetooth_update_rfk(void) |
3018 | { | |
3019 | int status; | |
3020 | ||
3021 | if (!tpacpi_bluetooth_rfkill) | |
3022 | return; | |
3023 | ||
3024 | status = bluetooth_get_radiosw(); | |
3025 | if (status < 0) | |
3026 | return; | |
3027 | rfkill_force_state(tpacpi_bluetooth_rfkill, status); | |
3028 | } | |
3029 | ||
3030 | static int bluetooth_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
3031 | { |
3032 | int status; | |
3033 | ||
3034 | if (!tp_features.bluetooth) | |
3035 | return -ENODEV; | |
3036 | ||
133ec3bd HMH |
3037 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
3038 | * reason to risk weird behaviour. */ | |
3039 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3040 | && radio_on) | |
3041 | return -EPERM; | |
3042 | ||
a73f3091 HMH |
3043 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3044 | if (dbg_bluetoothemul) { | |
3045 | tpacpi_bluetooth_emulstate = !!radio_on; | |
3046 | if (update_rfk) | |
3047 | bluetooth_update_rfk(); | |
3048 | return 0; | |
3049 | } | |
3050 | #endif | |
3051 | ||
153f8220 | 3052 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
07431ec8 | 3053 | if (radio_on) |
153f8220 | 3054 | status = TP_ACPI_BLUETOOTH_RADIOSSW; |
07431ec8 | 3055 | else |
153f8220 | 3056 | status = 0; |
07431ec8 HMH |
3057 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3058 | return -EIO; | |
3059 | ||
0e74dc26 HMH |
3060 | if (update_rfk) |
3061 | bluetooth_update_rfk(); | |
3062 | ||
07431ec8 HMH |
3063 | return 0; |
3064 | } | |
f74a27d4 | 3065 | |
d3a6ade4 HMH |
3066 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3067 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3068 | struct device_attribute *attr, | |
3069 | char *buf) | |
3070 | { | |
3071 | int status; | |
3072 | ||
3073 | status = bluetooth_get_radiosw(); | |
3074 | if (status < 0) | |
3075 | return status; | |
3076 | ||
0e74dc26 HMH |
3077 | return snprintf(buf, PAGE_SIZE, "%d\n", |
3078 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
3079 | } |
3080 | ||
3081 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3082 | struct device_attribute *attr, | |
3083 | const char *buf, size_t count) | |
3084 | { | |
3085 | unsigned long t; | |
3086 | int res; | |
3087 | ||
3088 | if (parse_strtoul(buf, 1, &t)) | |
3089 | return -EINVAL; | |
3090 | ||
0e74dc26 | 3091 | res = bluetooth_set_radiosw(t, 1); |
d3a6ade4 HMH |
3092 | |
3093 | return (res) ? res : count; | |
3094 | } | |
3095 | ||
3096 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3097 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3098 | bluetooth_enable_show, bluetooth_enable_store); |
3099 | ||
3100 | /* --------------------------------------------------------------------- */ | |
3101 | ||
3102 | static struct attribute *bluetooth_attributes[] = { | |
3103 | &dev_attr_bluetooth_enable.attr, | |
3104 | NULL | |
3105 | }; | |
3106 | ||
3107 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3108 | .attrs = bluetooth_attributes, |
3109 | }; | |
3110 | ||
0e74dc26 HMH |
3111 | static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) |
3112 | { | |
3113 | int bts = bluetooth_get_radiosw(); | |
3114 | ||
3115 | if (bts < 0) | |
3116 | return bts; | |
3117 | ||
3118 | *state = bts; | |
3119 | return 0; | |
3120 | } | |
3121 | ||
3122 | static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) | |
3123 | { | |
3124 | return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3125 | } | |
3126 | ||
90d9d3c7 HMH |
3127 | static void bluetooth_shutdown(void) |
3128 | { | |
3129 | /* Order firmware to save current state to NVRAM */ | |
3130 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
3131 | TP_ACPI_BLTH_SAVE_STATE)) | |
3132 | printk(TPACPI_NOTICE | |
3133 | "failed to save bluetooth state to NVRAM\n"); | |
3134 | } | |
3135 | ||
07431ec8 HMH |
3136 | static void bluetooth_exit(void) |
3137 | { | |
90d9d3c7 HMH |
3138 | bluetooth_shutdown(); |
3139 | ||
0e74dc26 HMH |
3140 | if (tpacpi_bluetooth_rfkill) |
3141 | rfkill_unregister(tpacpi_bluetooth_rfkill); | |
3142 | ||
07431ec8 HMH |
3143 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3144 | &bluetooth_attr_group); | |
3145 | } | |
3146 | ||
a5763f22 | 3147 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 3148 | { |
d3a6ade4 | 3149 | int res; |
d6fdd1e9 HMH |
3150 | int status = 0; |
3151 | ||
fe08bc4b HMH |
3152 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
3153 | ||
e0c7dfe7 | 3154 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3155 | |
78f81cc4 BD |
3156 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3157 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 3158 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
3159 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
3160 | ||
3161 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
3162 | str_supported(tp_features.bluetooth), | |
3163 | status); | |
3164 | ||
a73f3091 HMH |
3165 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3166 | if (dbg_bluetoothemul) { | |
3167 | tp_features.bluetooth = 1; | |
3168 | printk(TPACPI_INFO | |
3169 | "bluetooth switch emulation enabled\n"); | |
3170 | } else | |
3171 | #endif | |
3a872080 HMH |
3172 | if (tp_features.bluetooth && |
3173 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
3174 | /* no bluetooth hardware present in system */ | |
3175 | tp_features.bluetooth = 0; | |
3176 | dbg_printk(TPACPI_DBG_INIT, | |
3177 | "bluetooth hardware not installed\n"); | |
3178 | } | |
3179 | ||
0e74dc26 HMH |
3180 | if (!tp_features.bluetooth) |
3181 | return 1; | |
3182 | ||
3183 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 3184 | &bluetooth_attr_group); |
0e74dc26 HMH |
3185 | if (res) |
3186 | return res; | |
3187 | ||
3188 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, | |
3189 | &tpacpi_bluetooth_rfkill, | |
3190 | RFKILL_TYPE_BLUETOOTH, | |
3191 | "tpacpi_bluetooth_sw", | |
0045c0aa | 3192 | true, |
0e74dc26 HMH |
3193 | tpacpi_bluetooth_rfk_set, |
3194 | tpacpi_bluetooth_rfk_get); | |
3195 | if (res) { | |
3196 | bluetooth_exit(); | |
3197 | return res; | |
d6fdd1e9 | 3198 | } |
fe08bc4b | 3199 | |
0e74dc26 | 3200 | return 0; |
1da177e4 LT |
3201 | } |
3202 | ||
d3a6ade4 | 3203 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 3204 | static int bluetooth_read(char *p) |
1da177e4 LT |
3205 | { |
3206 | int len = 0; | |
d6fdd1e9 | 3207 | int status = bluetooth_get_radiosw(); |
1da177e4 | 3208 | |
d8fd94d9 | 3209 | if (!tp_features.bluetooth) |
1da177e4 | 3210 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 3211 | else { |
d6fdd1e9 | 3212 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3213 | (status == RFKILL_STATE_UNBLOCKED) ? |
3214 | "enabled" : "disabled"); | |
1da177e4 LT |
3215 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3216 | } | |
3217 | ||
3218 | return len; | |
3219 | } | |
3220 | ||
78f81cc4 | 3221 | static int bluetooth_write(char *buf) |
1da177e4 | 3222 | { |
1da177e4 | 3223 | char *cmd; |
1da177e4 | 3224 | |
d8fd94d9 | 3225 | if (!tp_features.bluetooth) |
78f81cc4 | 3226 | return -ENODEV; |
1da177e4 LT |
3227 | |
3228 | while ((cmd = next_cmd(&buf))) { | |
3229 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3230 | bluetooth_set_radiosw(1, 1); |
1da177e4 | 3231 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3232 | bluetooth_set_radiosw(0, 1); |
1da177e4 LT |
3233 | } else |
3234 | return -EINVAL; | |
1da177e4 LT |
3235 | } |
3236 | ||
1da177e4 LT |
3237 | return 0; |
3238 | } | |
3239 | ||
a5763f22 HMH |
3240 | static struct ibm_struct bluetooth_driver_data = { |
3241 | .name = "bluetooth", | |
3242 | .read = bluetooth_read, | |
3243 | .write = bluetooth_write, | |
d3a6ade4 | 3244 | .exit = bluetooth_exit, |
153f8220 | 3245 | .suspend = bluetooth_suspend, |
90d9d3c7 | 3246 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
3247 | }; |
3248 | ||
56b6aeb0 HMH |
3249 | /************************************************************************* |
3250 | * Wan subdriver | |
3251 | */ | |
3252 | ||
f74a27d4 HMH |
3253 | enum { |
3254 | /* ACPI GWAN/SWAN bits */ | |
3255 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
3256 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 HMH |
3257 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
3258 | off / last state */ | |
f74a27d4 HMH |
3259 | }; |
3260 | ||
0e74dc26 HMH |
3261 | static struct rfkill *tpacpi_wan_rfkill; |
3262 | ||
153f8220 HMH |
3263 | static void wan_suspend(pm_message_t state) |
3264 | { | |
3265 | /* Try to make sure radio will resume powered off */ | |
3266 | acpi_evalf(NULL, NULL, "\\WGSV", "qvd", | |
3267 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME); | |
3268 | } | |
3269 | ||
07431ec8 HMH |
3270 | static int wan_get_radiosw(void) |
3271 | { | |
3272 | int status; | |
3273 | ||
3274 | if (!tp_features.wan) | |
3275 | return -ENODEV; | |
3276 | ||
133ec3bd HMH |
3277 | /* WLSW overrides WWAN in firmware/hardware, reflect that */ |
3278 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 3279 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 3280 | |
a73f3091 HMH |
3281 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3282 | if (dbg_wwanemul) | |
3283 | return (tpacpi_wwan_emulstate) ? | |
3284 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3285 | #endif | |
3286 | ||
07431ec8 HMH |
3287 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
3288 | return -EIO; | |
3289 | ||
0e74dc26 HMH |
3290 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
3291 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
3292 | } |
3293 | ||
0e74dc26 HMH |
3294 | static void wan_update_rfk(void) |
3295 | { | |
3296 | int status; | |
3297 | ||
3298 | if (!tpacpi_wan_rfkill) | |
3299 | return; | |
3300 | ||
3301 | status = wan_get_radiosw(); | |
3302 | if (status < 0) | |
3303 | return; | |
3304 | rfkill_force_state(tpacpi_wan_rfkill, status); | |
3305 | } | |
3306 | ||
3307 | static int wan_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
3308 | { |
3309 | int status; | |
3310 | ||
3311 | if (!tp_features.wan) | |
3312 | return -ENODEV; | |
3313 | ||
133ec3bd HMH |
3314 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
3315 | * reason to risk weird behaviour. */ | |
3316 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3317 | && radio_on) | |
3318 | return -EPERM; | |
3319 | ||
a73f3091 HMH |
3320 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3321 | if (dbg_wwanemul) { | |
3322 | tpacpi_wwan_emulstate = !!radio_on; | |
3323 | if (update_rfk) | |
3324 | wan_update_rfk(); | |
3325 | return 0; | |
3326 | } | |
3327 | #endif | |
3328 | ||
153f8220 | 3329 | /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ |
07431ec8 | 3330 | if (radio_on) |
153f8220 | 3331 | status = TP_ACPI_WANCARD_RADIOSSW; |
07431ec8 | 3332 | else |
153f8220 | 3333 | status = 0; |
07431ec8 HMH |
3334 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
3335 | return -EIO; | |
3336 | ||
0e74dc26 HMH |
3337 | if (update_rfk) |
3338 | wan_update_rfk(); | |
3339 | ||
07431ec8 HMH |
3340 | return 0; |
3341 | } | |
f74a27d4 | 3342 | |
d3a6ade4 HMH |
3343 | /* sysfs wan enable ---------------------------------------------------- */ |
3344 | static ssize_t wan_enable_show(struct device *dev, | |
3345 | struct device_attribute *attr, | |
3346 | char *buf) | |
3347 | { | |
3348 | int status; | |
3349 | ||
3350 | status = wan_get_radiosw(); | |
3351 | if (status < 0) | |
3352 | return status; | |
3353 | ||
0e74dc26 HMH |
3354 | return snprintf(buf, PAGE_SIZE, "%d\n", |
3355 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
3356 | } |
3357 | ||
3358 | static ssize_t wan_enable_store(struct device *dev, | |
3359 | struct device_attribute *attr, | |
3360 | const char *buf, size_t count) | |
3361 | { | |
3362 | unsigned long t; | |
3363 | int res; | |
3364 | ||
3365 | if (parse_strtoul(buf, 1, &t)) | |
3366 | return -EINVAL; | |
3367 | ||
0e74dc26 | 3368 | res = wan_set_radiosw(t, 1); |
d3a6ade4 HMH |
3369 | |
3370 | return (res) ? res : count; | |
3371 | } | |
3372 | ||
3373 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 3374 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3375 | wan_enable_show, wan_enable_store); |
3376 | ||
3377 | /* --------------------------------------------------------------------- */ | |
3378 | ||
3379 | static struct attribute *wan_attributes[] = { | |
3380 | &dev_attr_wan_enable.attr, | |
3381 | NULL | |
3382 | }; | |
3383 | ||
3384 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
3385 | .attrs = wan_attributes, |
3386 | }; | |
3387 | ||
0e74dc26 HMH |
3388 | static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) |
3389 | { | |
3390 | int wans = wan_get_radiosw(); | |
3391 | ||
3392 | if (wans < 0) | |
3393 | return wans; | |
3394 | ||
3395 | *state = wans; | |
3396 | return 0; | |
3397 | } | |
3398 | ||
3399 | static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) | |
3400 | { | |
3401 | return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3402 | } | |
3403 | ||
90d9d3c7 HMH |
3404 | static void wan_shutdown(void) |
3405 | { | |
3406 | /* Order firmware to save current state to NVRAM */ | |
3407 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
3408 | TP_ACPI_WGSV_SAVE_STATE)) | |
3409 | printk(TPACPI_NOTICE | |
3410 | "failed to save WWAN state to NVRAM\n"); | |
3411 | } | |
3412 | ||
07431ec8 HMH |
3413 | static void wan_exit(void) |
3414 | { | |
90d9d3c7 HMH |
3415 | wan_shutdown(); |
3416 | ||
0e74dc26 HMH |
3417 | if (tpacpi_wan_rfkill) |
3418 | rfkill_unregister(tpacpi_wan_rfkill); | |
3419 | ||
07431ec8 HMH |
3420 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3421 | &wan_attr_group); | |
3422 | } | |
3423 | ||
a5763f22 | 3424 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 3425 | { |
d3a6ade4 | 3426 | int res; |
d6fdd1e9 HMH |
3427 | int status = 0; |
3428 | ||
fe08bc4b HMH |
3429 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
3430 | ||
e0c7dfe7 | 3431 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3432 | |
d8fd94d9 | 3433 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
3434 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
3435 | ||
3436 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
3437 | str_supported(tp_features.wan), | |
3438 | status); | |
3439 | ||
a73f3091 HMH |
3440 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3441 | if (dbg_wwanemul) { | |
3442 | tp_features.wan = 1; | |
3443 | printk(TPACPI_INFO | |
3444 | "wwan switch emulation enabled\n"); | |
3445 | } else | |
3446 | #endif | |
3a872080 HMH |
3447 | if (tp_features.wan && |
3448 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
3449 | /* no wan hardware present in system */ | |
3450 | tp_features.wan = 0; | |
3451 | dbg_printk(TPACPI_DBG_INIT, | |
3452 | "wan hardware not installed\n"); | |
3453 | } | |
3454 | ||
0e74dc26 HMH |
3455 | if (!tp_features.wan) |
3456 | return 1; | |
3457 | ||
3458 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 3459 | &wan_attr_group); |
0e74dc26 HMH |
3460 | if (res) |
3461 | return res; | |
3462 | ||
3463 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, | |
3464 | &tpacpi_wan_rfkill, | |
3465 | RFKILL_TYPE_WWAN, | |
3466 | "tpacpi_wwan_sw", | |
0045c0aa | 3467 | true, |
0e74dc26 HMH |
3468 | tpacpi_wan_rfk_set, |
3469 | tpacpi_wan_rfk_get); | |
3470 | if (res) { | |
3471 | wan_exit(); | |
3472 | return res; | |
d6fdd1e9 | 3473 | } |
fe08bc4b | 3474 | |
0e74dc26 | 3475 | return 0; |
42adb53c JF |
3476 | } |
3477 | ||
d3a6ade4 | 3478 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
3479 | static int wan_read(char *p) |
3480 | { | |
3481 | int len = 0; | |
d6fdd1e9 | 3482 | int status = wan_get_radiosw(); |
42adb53c | 3483 | |
d8fd94d9 | 3484 | if (!tp_features.wan) |
42adb53c | 3485 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 3486 | else { |
d6fdd1e9 | 3487 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3488 | (status == RFKILL_STATE_UNBLOCKED) ? |
3489 | "enabled" : "disabled"); | |
42adb53c JF |
3490 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3491 | } | |
3492 | ||
3493 | return len; | |
3494 | } | |
3495 | ||
3496 | static int wan_write(char *buf) | |
3497 | { | |
42adb53c | 3498 | char *cmd; |
42adb53c | 3499 | |
d8fd94d9 | 3500 | if (!tp_features.wan) |
42adb53c JF |
3501 | return -ENODEV; |
3502 | ||
3503 | while ((cmd = next_cmd(&buf))) { | |
3504 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3505 | wan_set_radiosw(1, 1); |
42adb53c | 3506 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3507 | wan_set_radiosw(0, 1); |
42adb53c JF |
3508 | } else |
3509 | return -EINVAL; | |
42adb53c JF |
3510 | } |
3511 | ||
42adb53c JF |
3512 | return 0; |
3513 | } | |
3514 | ||
a5763f22 HMH |
3515 | static struct ibm_struct wan_driver_data = { |
3516 | .name = "wan", | |
3517 | .read = wan_read, | |
3518 | .write = wan_write, | |
d3a6ade4 | 3519 | .exit = wan_exit, |
153f8220 | 3520 | .suspend = wan_suspend, |
90d9d3c7 | 3521 | .shutdown = wan_shutdown, |
a5763f22 HMH |
3522 | }; |
3523 | ||
0045c0aa HMH |
3524 | /************************************************************************* |
3525 | * UWB subdriver | |
3526 | */ | |
3527 | ||
3528 | enum { | |
3529 | /* ACPI GUWB/SUWB bits */ | |
3530 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
3531 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
3532 | }; | |
3533 | ||
3534 | static struct rfkill *tpacpi_uwb_rfkill; | |
3535 | ||
3536 | static int uwb_get_radiosw(void) | |
3537 | { | |
3538 | int status; | |
3539 | ||
3540 | if (!tp_features.uwb) | |
3541 | return -ENODEV; | |
3542 | ||
3543 | /* WLSW overrides UWB in firmware/hardware, reflect that */ | |
3544 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
3545 | return RFKILL_STATE_HARD_BLOCKED; | |
3546 | ||
3547 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3548 | if (dbg_uwbemul) | |
3549 | return (tpacpi_uwb_emulstate) ? | |
3550 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3551 | #endif | |
3552 | ||
3553 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
3554 | return -EIO; | |
3555 | ||
3556 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
3557 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3558 | } | |
3559 | ||
3560 | static void uwb_update_rfk(void) | |
3561 | { | |
3562 | int status; | |
3563 | ||
3564 | if (!tpacpi_uwb_rfkill) | |
3565 | return; | |
3566 | ||
3567 | status = uwb_get_radiosw(); | |
3568 | if (status < 0) | |
3569 | return; | |
3570 | rfkill_force_state(tpacpi_uwb_rfkill, status); | |
3571 | } | |
3572 | ||
3573 | static int uwb_set_radiosw(int radio_on, int update_rfk) | |
3574 | { | |
3575 | int status; | |
3576 | ||
3577 | if (!tp_features.uwb) | |
3578 | return -ENODEV; | |
3579 | ||
3580 | /* WLSW overrides UWB in firmware/hardware, but there is no | |
3581 | * reason to risk weird behaviour. */ | |
3582 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3583 | && radio_on) | |
3584 | return -EPERM; | |
3585 | ||
3586 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3587 | if (dbg_uwbemul) { | |
3588 | tpacpi_uwb_emulstate = !!radio_on; | |
3589 | if (update_rfk) | |
3590 | uwb_update_rfk(); | |
3591 | return 0; | |
3592 | } | |
3593 | #endif | |
3594 | ||
3595 | status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0; | |
3596 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) | |
3597 | return -EIO; | |
3598 | ||
3599 | if (update_rfk) | |
3600 | uwb_update_rfk(); | |
3601 | ||
3602 | return 0; | |
3603 | } | |
3604 | ||
3605 | /* --------------------------------------------------------------------- */ | |
3606 | ||
3607 | static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state) | |
3608 | { | |
3609 | int uwbs = uwb_get_radiosw(); | |
3610 | ||
3611 | if (uwbs < 0) | |
3612 | return uwbs; | |
3613 | ||
3614 | *state = uwbs; | |
3615 | return 0; | |
3616 | } | |
3617 | ||
3618 | static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state) | |
3619 | { | |
3620 | return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3621 | } | |
3622 | ||
3623 | static void uwb_exit(void) | |
3624 | { | |
3625 | if (tpacpi_uwb_rfkill) | |
3626 | rfkill_unregister(tpacpi_uwb_rfkill); | |
3627 | } | |
3628 | ||
3629 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
3630 | { | |
3631 | int res; | |
3632 | int status = 0; | |
3633 | ||
3634 | vdbg_printk(TPACPI_DBG_INIT, "initializing uwb subdriver\n"); | |
3635 | ||
3636 | TPACPI_ACPIHANDLE_INIT(hkey); | |
3637 | ||
3638 | tp_features.uwb = hkey_handle && | |
3639 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
3640 | ||
3641 | vdbg_printk(TPACPI_DBG_INIT, "uwb is %s, status 0x%02x\n", | |
3642 | str_supported(tp_features.uwb), | |
3643 | status); | |
3644 | ||
3645 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3646 | if (dbg_uwbemul) { | |
3647 | tp_features.uwb = 1; | |
3648 | printk(TPACPI_INFO | |
3649 | "uwb switch emulation enabled\n"); | |
3650 | } else | |
3651 | #endif | |
3652 | if (tp_features.uwb && | |
3653 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
3654 | /* no uwb hardware present in system */ | |
3655 | tp_features.uwb = 0; | |
3656 | dbg_printk(TPACPI_DBG_INIT, | |
3657 | "uwb hardware not installed\n"); | |
3658 | } | |
3659 | ||
3660 | if (!tp_features.uwb) | |
3661 | return 1; | |
3662 | ||
3663 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
3664 | &tpacpi_uwb_rfkill, | |
3665 | RFKILL_TYPE_UWB, | |
3666 | "tpacpi_uwb_sw", | |
3667 | false, | |
3668 | tpacpi_uwb_rfk_set, | |
3669 | tpacpi_uwb_rfk_get); | |
3670 | ||
3671 | return res; | |
3672 | } | |
3673 | ||
3674 | static struct ibm_struct uwb_driver_data = { | |
3675 | .name = "uwb", | |
3676 | .exit = uwb_exit, | |
3677 | .flags.experimental = 1, | |
3678 | }; | |
3679 | ||
56b6aeb0 HMH |
3680 | /************************************************************************* |
3681 | * Video subdriver | |
3682 | */ | |
3683 | ||
d7c1d17d HMH |
3684 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
3685 | ||
f74a27d4 HMH |
3686 | enum video_access_mode { |
3687 | TPACPI_VIDEO_NONE = 0, | |
3688 | TPACPI_VIDEO_570, /* 570 */ | |
3689 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
3690 | TPACPI_VIDEO_NEW, /* all others */ | |
3691 | }; | |
3692 | ||
3693 | enum { /* video status flags, based on VIDEO_570 */ | |
3694 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
3695 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
3696 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
3697 | }; | |
3698 | ||
3699 | enum { /* TPACPI_VIDEO_570 constants */ | |
3700 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
3701 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
3702 | * video_status_flags */ | |
3703 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
3704 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
3705 | }; | |
3706 | ||
9a8e1738 HMH |
3707 | static enum video_access_mode video_supported; |
3708 | static int video_orig_autosw; | |
78f81cc4 | 3709 | |
f74a27d4 HMH |
3710 | static int video_autosw_get(void); |
3711 | static int video_autosw_set(int enable); | |
3712 | ||
e0c7dfe7 | 3713 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 3714 | |
a5763f22 | 3715 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 3716 | { |
78f81cc4 BD |
3717 | int ivga; |
3718 | ||
fe08bc4b HMH |
3719 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
3720 | ||
e0c7dfe7 HMH |
3721 | TPACPI_ACPIHANDLE_INIT(vid); |
3722 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 3723 | |
78f81cc4 BD |
3724 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
3725 | /* G41, assume IVGA doesn't change */ | |
3726 | vid_handle = vid2_handle; | |
3727 | ||
3728 | if (!vid_handle) | |
3729 | /* video switching not supported on R30, R31 */ | |
efa27145 | 3730 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
3731 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
3732 | /* 570 */ | |
efa27145 | 3733 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
3734 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
3735 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3736 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
3737 | else |
3738 | /* all others */ | |
efa27145 | 3739 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 3740 | |
fe08bc4b HMH |
3741 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
3742 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
3743 | video_supported); | |
3744 | ||
5fba344c | 3745 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
3746 | } |
3747 | ||
56b6aeb0 HMH |
3748 | static void video_exit(void) |
3749 | { | |
83f34724 HMH |
3750 | dbg_printk(TPACPI_DBG_EXIT, |
3751 | "restoring original video autoswitch mode\n"); | |
3752 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 3753 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 3754 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
3755 | } |
3756 | ||
83f34724 | 3757 | static int video_outputsw_get(void) |
1da177e4 LT |
3758 | { |
3759 | int status = 0; | |
3760 | int i; | |
3761 | ||
83f34724 HMH |
3762 | switch (video_supported) { |
3763 | case TPACPI_VIDEO_570: | |
3764 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
3765 | TP_ACPI_VIDEO_570_PHSCMD)) | |
3766 | return -EIO; | |
3767 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
3768 | break; | |
3769 | case TPACPI_VIDEO_770: | |
3770 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3771 | return -EIO; | |
3772 | if (i) | |
3773 | status |= TP_ACPI_VIDEO_S_LCD; | |
3774 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3775 | return -EIO; | |
3776 | if (i) | |
3777 | status |= TP_ACPI_VIDEO_S_CRT; | |
3778 | break; | |
3779 | case TPACPI_VIDEO_NEW: | |
3780 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3781 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3782 | return -EIO; | |
3783 | if (i) | |
3784 | status |= TP_ACPI_VIDEO_S_CRT; | |
3785 | ||
3786 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3787 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3788 | return -EIO; | |
3789 | if (i) | |
3790 | status |= TP_ACPI_VIDEO_S_LCD; | |
3791 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3792 | return -EIO; | |
3793 | if (i) | |
3794 | status |= TP_ACPI_VIDEO_S_DVI; | |
3795 | break; | |
3796 | default: | |
3797 | return -ENOSYS; | |
78f81cc4 BD |
3798 | } |
3799 | ||
3800 | return status; | |
3801 | } | |
1da177e4 | 3802 | |
83f34724 | 3803 | static int video_outputsw_set(int status) |
78f81cc4 | 3804 | { |
83f34724 HMH |
3805 | int autosw; |
3806 | int res = 0; | |
3807 | ||
3808 | switch (video_supported) { | |
3809 | case TPACPI_VIDEO_570: | |
3810 | res = acpi_evalf(NULL, NULL, | |
3811 | "\\_SB.PHS2", "vdd", | |
3812 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3813 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3814 | break; | |
3815 | case TPACPI_VIDEO_770: | |
3816 | autosw = video_autosw_get(); | |
3817 | if (autosw < 0) | |
3818 | return autosw; | |
1da177e4 | 3819 | |
83f34724 HMH |
3820 | res = video_autosw_set(1); |
3821 | if (res) | |
3822 | return res; | |
3823 | res = acpi_evalf(vid_handle, NULL, | |
3824 | "ASWT", "vdd", status * 0x100, 0); | |
3825 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3826 | printk(TPACPI_ERR |
3827 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3828 | return -EIO; |
3829 | } | |
3830 | break; | |
3831 | case TPACPI_VIDEO_NEW: | |
3832 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3833 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3834 | break; |
3835 | default: | |
3836 | return -ENOSYS; | |
3837 | } | |
1da177e4 | 3838 | |
83f34724 | 3839 | return (res)? 0 : -EIO; |
1da177e4 LT |
3840 | } |
3841 | ||
83f34724 | 3842 | static int video_autosw_get(void) |
78f81cc4 | 3843 | { |
83f34724 | 3844 | int autosw = 0; |
78f81cc4 | 3845 | |
83f34724 HMH |
3846 | switch (video_supported) { |
3847 | case TPACPI_VIDEO_570: | |
3848 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3849 | return -EIO; | |
3850 | break; | |
3851 | case TPACPI_VIDEO_770: | |
3852 | case TPACPI_VIDEO_NEW: | |
3853 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3854 | return -EIO; | |
3855 | break; | |
3856 | default: | |
3857 | return -ENOSYS; | |
3858 | } | |
78f81cc4 | 3859 | |
83f34724 | 3860 | return autosw & 1; |
78f81cc4 BD |
3861 | } |
3862 | ||
83f34724 | 3863 | static int video_autosw_set(int enable) |
78f81cc4 | 3864 | { |
83f34724 HMH |
3865 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3866 | return -EIO; | |
3867 | return 0; | |
78f81cc4 BD |
3868 | } |
3869 | ||
83f34724 | 3870 | static int video_outputsw_cycle(void) |
78f81cc4 | 3871 | { |
83f34724 HMH |
3872 | int autosw = video_autosw_get(); |
3873 | int res; | |
78f81cc4 | 3874 | |
83f34724 HMH |
3875 | if (autosw < 0) |
3876 | return autosw; | |
78f81cc4 | 3877 | |
83f34724 HMH |
3878 | switch (video_supported) { |
3879 | case TPACPI_VIDEO_570: | |
3880 | res = video_autosw_set(1); | |
3881 | if (res) | |
3882 | return res; | |
3883 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3884 | break; | |
3885 | case TPACPI_VIDEO_770: | |
3886 | case TPACPI_VIDEO_NEW: | |
3887 | res = video_autosw_set(1); | |
3888 | if (res) | |
3889 | return res; | |
3890 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3891 | break; | |
3892 | default: | |
3893 | return -ENOSYS; | |
3894 | } | |
3895 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3896 | printk(TPACPI_ERR |
3897 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3898 | return -EIO; |
78f81cc4 BD |
3899 | } |
3900 | ||
83f34724 HMH |
3901 | return (res)? 0 : -EIO; |
3902 | } | |
3903 | ||
3904 | static int video_expand_toggle(void) | |
3905 | { | |
3906 | switch (video_supported) { | |
3907 | case TPACPI_VIDEO_570: | |
3908 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3909 | 0 : -EIO; | |
3910 | case TPACPI_VIDEO_770: | |
3911 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3912 | 0 : -EIO; | |
3913 | case TPACPI_VIDEO_NEW: | |
3914 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3915 | 0 : -EIO; | |
3916 | default: | |
3917 | return -ENOSYS; | |
3918 | } | |
3919 | /* not reached */ | |
78f81cc4 BD |
3920 | } |
3921 | ||
56b6aeb0 HMH |
3922 | static int video_read(char *p) |
3923 | { | |
83f34724 | 3924 | int status, autosw; |
56b6aeb0 HMH |
3925 | int len = 0; |
3926 | ||
83f34724 | 3927 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3928 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3929 | return len; | |
3930 | } | |
3931 | ||
83f34724 HMH |
3932 | status = video_outputsw_get(); |
3933 | if (status < 0) | |
3934 | return status; | |
3935 | ||
3936 | autosw = video_autosw_get(); | |
3937 | if (autosw < 0) | |
3938 | return autosw; | |
3939 | ||
56b6aeb0 HMH |
3940 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3941 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3942 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3943 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3944 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3945 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3946 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3947 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3948 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3949 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3950 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3951 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3952 | ||
3953 | return len; | |
3954 | } | |
3955 | ||
78f81cc4 | 3956 | static int video_write(char *buf) |
1da177e4 LT |
3957 | { |
3958 | char *cmd; | |
3959 | int enable, disable, status; | |
83f34724 | 3960 | int res; |
1da177e4 | 3961 | |
83f34724 | 3962 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3963 | return -ENODEV; |
3964 | ||
83f34724 HMH |
3965 | enable = 0; |
3966 | disable = 0; | |
1da177e4 LT |
3967 | |
3968 | while ((cmd = next_cmd(&buf))) { | |
3969 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3970 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3971 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3972 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3973 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3974 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3975 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3976 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3977 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3978 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3979 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3980 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3981 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3982 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3983 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3984 | res = video_autosw_set(1); |
3985 | if (res) | |
3986 | return res; | |
1da177e4 | 3987 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3988 | res = video_autosw_set(0); |
3989 | if (res) | |
3990 | return res; | |
1da177e4 | 3991 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3992 | res = video_outputsw_cycle(); |
3993 | if (res) | |
3994 | return res; | |
1da177e4 | 3995 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3996 | res = video_expand_toggle(); |
3997 | if (res) | |
3998 | return res; | |
1da177e4 LT |
3999 | } else |
4000 | return -EINVAL; | |
4001 | } | |
4002 | ||
4003 | if (enable || disable) { | |
83f34724 HMH |
4004 | status = video_outputsw_get(); |
4005 | if (status < 0) | |
4006 | return status; | |
4007 | res = video_outputsw_set((status & ~disable) | enable); | |
4008 | if (res) | |
4009 | return res; | |
1da177e4 LT |
4010 | } |
4011 | ||
4012 | return 0; | |
4013 | } | |
4014 | ||
a5763f22 HMH |
4015 | static struct ibm_struct video_driver_data = { |
4016 | .name = "video", | |
4017 | .read = video_read, | |
4018 | .write = video_write, | |
4019 | .exit = video_exit, | |
4020 | }; | |
4021 | ||
d7c1d17d HMH |
4022 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4023 | ||
56b6aeb0 HMH |
4024 | /************************************************************************* |
4025 | * Light (thinklight) subdriver | |
4026 | */ | |
1da177e4 | 4027 | |
e0c7dfe7 HMH |
4028 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4029 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4030 | |
4fa6811b HMH |
4031 | static int light_get_status(void) |
4032 | { | |
4033 | int status = 0; | |
4034 | ||
4035 | if (tp_features.light_status) { | |
4036 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4037 | return -EIO; | |
4038 | return (!!status); | |
4039 | } | |
4040 | ||
4041 | return -ENXIO; | |
4042 | } | |
4043 | ||
4044 | static int light_set_status(int status) | |
4045 | { | |
4046 | int rc; | |
4047 | ||
4048 | if (tp_features.light) { | |
4049 | if (cmos_handle) { | |
4050 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4051 | (status)? | |
4052 | TP_CMOS_THINKLIGHT_ON : | |
4053 | TP_CMOS_THINKLIGHT_OFF); | |
4054 | } else { | |
4055 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4056 | (status)? 1 : 0); | |
4057 | } | |
4058 | return (rc)? 0 : -EIO; | |
4059 | } | |
4060 | ||
4061 | return -ENXIO; | |
4062 | } | |
4063 | ||
e306501d HMH |
4064 | static void light_set_status_worker(struct work_struct *work) |
4065 | { | |
4066 | struct tpacpi_led_classdev *data = | |
4067 | container_of(work, struct tpacpi_led_classdev, work); | |
4068 | ||
4069 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
4070 | light_set_status((data->new_brightness != LED_OFF)); | |
4071 | } | |
4072 | ||
4073 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4074 | enum led_brightness brightness) | |
4075 | { | |
4076 | struct tpacpi_led_classdev *data = | |
4077 | container_of(led_cdev, | |
4078 | struct tpacpi_led_classdev, | |
4079 | led_classdev); | |
4080 | data->new_brightness = brightness; | |
e0e3c061 | 4081 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4082 | } |
4083 | ||
4084 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4085 | { | |
4086 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4087 | } | |
4088 | ||
4089 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4090 | .led_classdev = { | |
4091 | .name = "tpacpi::thinklight", | |
4092 | .brightness_set = &light_sysfs_set, | |
4093 | .brightness_get = &light_sysfs_get, | |
4094 | } | |
4095 | }; | |
4096 | ||
a5763f22 | 4097 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4098 | { |
9c0a76e1 | 4099 | int rc; |
e306501d | 4100 | |
fe08bc4b HMH |
4101 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4102 | ||
e0c7dfe7 HMH |
4103 | TPACPI_ACPIHANDLE_INIT(ledb); |
4104 | TPACPI_ACPIHANDLE_INIT(lght); | |
4105 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 4106 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4107 | |
78f81cc4 | 4108 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4109 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4110 | |
d8fd94d9 | 4111 | if (tp_features.light) |
78f81cc4 BD |
4112 | /* light status not supported on |
4113 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4114 | tp_features.light_status = |
4115 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4116 | |
9c0a76e1 HMH |
4117 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4118 | str_supported(tp_features.light), | |
4119 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4120 | |
9c0a76e1 HMH |
4121 | if (!tp_features.light) |
4122 | return 1; | |
4123 | ||
4124 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4125 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4126 | |
4127 | if (rc < 0) { | |
4128 | tp_features.light = 0; | |
4129 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4130 | } else { |
4131 | rc = 0; | |
e306501d | 4132 | } |
9c0a76e1 | 4133 | |
e306501d HMH |
4134 | return rc; |
4135 | } | |
4136 | ||
4137 | static void light_exit(void) | |
4138 | { | |
4139 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4140 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4141 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4142 | } |
4143 | ||
78f81cc4 | 4144 | static int light_read(char *p) |
1da177e4 LT |
4145 | { |
4146 | int len = 0; | |
4fa6811b | 4147 | int status; |
1da177e4 | 4148 | |
d8fd94d9 | 4149 | if (!tp_features.light) { |
78f81cc4 | 4150 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 4151 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
4152 | len += sprintf(p + len, "status:\t\tunknown\n"); |
4153 | len += sprintf(p + len, "commands:\ton, off\n"); | |
4154 | } else { | |
4fa6811b HMH |
4155 | status = light_get_status(); |
4156 | if (status < 0) | |
4157 | return status; | |
1da177e4 | 4158 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
4159 | len += sprintf(p + len, "commands:\ton, off\n"); |
4160 | } | |
1da177e4 LT |
4161 | |
4162 | return len; | |
4163 | } | |
4164 | ||
78f81cc4 | 4165 | static int light_write(char *buf) |
1da177e4 | 4166 | { |
1da177e4 | 4167 | char *cmd; |
4fa6811b | 4168 | int newstatus = 0; |
78f81cc4 | 4169 | |
d8fd94d9 | 4170 | if (!tp_features.light) |
78f81cc4 BD |
4171 | return -ENODEV; |
4172 | ||
1da177e4 LT |
4173 | while ((cmd = next_cmd(&buf))) { |
4174 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4175 | newstatus = 1; |
1da177e4 | 4176 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4177 | newstatus = 0; |
1da177e4 LT |
4178 | } else |
4179 | return -EINVAL; | |
1da177e4 LT |
4180 | } |
4181 | ||
4fa6811b | 4182 | return light_set_status(newstatus); |
1da177e4 LT |
4183 | } |
4184 | ||
a5763f22 HMH |
4185 | static struct ibm_struct light_driver_data = { |
4186 | .name = "light", | |
4187 | .read = light_read, | |
4188 | .write = light_write, | |
e306501d | 4189 | .exit = light_exit, |
a5763f22 HMH |
4190 | }; |
4191 | ||
56b6aeb0 HMH |
4192 | /************************************************************************* |
4193 | * Dock subdriver | |
4194 | */ | |
1da177e4 | 4195 | |
85998248 | 4196 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 4197 | |
f74a27d4 HMH |
4198 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
4199 | static int dock_read(char *p); | |
4200 | static int dock_write(char *buf); | |
4201 | ||
e0c7dfe7 | 4202 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
4203 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
4204 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
4205 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
4206 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
4207 | ||
5fba344c | 4208 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 4209 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 4210 | |
1ba90e3a TR |
4211 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
4212 | {PCI_ROOT_HID_STRING, 0}, | |
4213 | {"", 0}, | |
4214 | }; | |
4215 | ||
d94a7f16 HMH |
4216 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
4217 | { | |
4218 | .notify = dock_notify, | |
4219 | .handle = &dock_handle, | |
4220 | .type = ACPI_SYSTEM_NOTIFY, | |
4221 | }, | |
4222 | { | |
996fba08 HMH |
4223 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
4224 | * We just use it to get notifications of dock hotplug | |
4225 | * in very old thinkpads */ | |
1ba90e3a | 4226 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
4227 | .notify = dock_notify, |
4228 | .handle = &pci_handle, | |
4229 | .type = ACPI_SYSTEM_NOTIFY, | |
4230 | }, | |
4231 | }; | |
4232 | ||
4233 | static struct ibm_struct dock_driver_data[2] = { | |
4234 | { | |
4235 | .name = "dock", | |
4236 | .read = dock_read, | |
4237 | .write = dock_write, | |
4238 | .acpi = &ibm_dock_acpidriver[0], | |
4239 | }, | |
4240 | { | |
4241 | .name = "dock", | |
4242 | .acpi = &ibm_dock_acpidriver[1], | |
4243 | }, | |
4244 | }; | |
4245 | ||
1da177e4 LT |
4246 | #define dock_docked() (_sta(dock_handle) & 1) |
4247 | ||
a5763f22 | 4248 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 4249 | { |
fe08bc4b HMH |
4250 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
4251 | ||
e0c7dfe7 | 4252 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 4253 | |
fe08bc4b HMH |
4254 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
4255 | str_supported(dock_handle != NULL)); | |
4256 | ||
5fba344c HMH |
4257 | return (dock_handle)? 0 : 1; |
4258 | } | |
4259 | ||
d94a7f16 HMH |
4260 | static int __init dock_init2(struct ibm_init_struct *iibm) |
4261 | { | |
4262 | int dock2_needed; | |
4263 | ||
4264 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
4265 | ||
4266 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
4267 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 4268 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
4269 | dock2_needed = (pci_handle != NULL); |
4270 | vdbg_printk(TPACPI_DBG_INIT, | |
4271 | "dock PCI handler for the TP 570 is %s\n", | |
4272 | str_supported(dock2_needed)); | |
4273 | } else { | |
4274 | vdbg_printk(TPACPI_DBG_INIT, | |
4275 | "dock subdriver part 2 not required\n"); | |
4276 | dock2_needed = 0; | |
4277 | } | |
4278 | ||
4279 | return (dock2_needed)? 0 : 1; | |
4280 | } | |
4281 | ||
56b6aeb0 HMH |
4282 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
4283 | { | |
4284 | int docked = dock_docked(); | |
1ba90e3a TR |
4285 | int pci = ibm->acpi->hid && ibm->acpi->device && |
4286 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 4287 | int data; |
56b6aeb0 HMH |
4288 | |
4289 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 4290 | data = 1; /* button */ |
56b6aeb0 | 4291 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 4292 | data = 3; /* dock */ |
56b6aeb0 | 4293 | else if (event == 3 && docked) |
962ce8ca | 4294 | data = 1; /* button */ |
56b6aeb0 | 4295 | else if (event == 3 && !docked) |
962ce8ca | 4296 | data = 2; /* undock */ |
56b6aeb0 | 4297 | else if (event == 0 && docked) |
962ce8ca | 4298 | data = 3; /* dock */ |
56b6aeb0 | 4299 | else { |
e0c7dfe7 | 4300 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 4301 | event, _sta(dock_handle)); |
962ce8ca | 4302 | data = 0; /* unknown */ |
56b6aeb0 | 4303 | } |
14e04fb3 | 4304 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca | 4305 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 4306 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 4307 | event, data); |
56b6aeb0 HMH |
4308 | } |
4309 | ||
78f81cc4 | 4310 | static int dock_read(char *p) |
1da177e4 LT |
4311 | { |
4312 | int len = 0; | |
4313 | int docked = dock_docked(); | |
4314 | ||
4315 | if (!dock_handle) | |
4316 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4317 | else if (!docked) | |
4318 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
4319 | else { | |
4320 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
4321 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
4322 | } | |
4323 | ||
4324 | return len; | |
4325 | } | |
4326 | ||
78f81cc4 | 4327 | static int dock_write(char *buf) |
1da177e4 LT |
4328 | { |
4329 | char *cmd; | |
4330 | ||
4331 | if (!dock_docked()) | |
78f81cc4 | 4332 | return -ENODEV; |
1da177e4 LT |
4333 | |
4334 | while ((cmd = next_cmd(&buf))) { | |
4335 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
4336 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
4337 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
4338 | return -EIO; |
4339 | } else if (strlencmp(cmd, "dock") == 0) { | |
4340 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
4341 | return -EIO; | |
4342 | } else | |
4343 | return -EINVAL; | |
1da177e4 | 4344 | } |
56b6aeb0 HMH |
4345 | |
4346 | return 0; | |
1da177e4 | 4347 | } |
56b6aeb0 | 4348 | |
85998248 | 4349 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
4350 | |
4351 | /************************************************************************* | |
4352 | * Bay subdriver | |
4353 | */ | |
1da177e4 | 4354 | |
85998248 | 4355 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 4356 | |
e0c7dfe7 | 4357 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
4358 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
4359 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
4360 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
4361 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 4362 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
4363 | "_EJ0", /* all others */ |
4364 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 4365 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
4366 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
4367 | ); /* all others */ | |
e0c7dfe7 | 4368 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
4369 | "_EJ0", /* 770x */ |
4370 | ); /* all others */ | |
4371 | ||
a5763f22 | 4372 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 4373 | { |
fe08bc4b HMH |
4374 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
4375 | ||
e0c7dfe7 | 4376 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 4377 | if (bay_handle) |
e0c7dfe7 HMH |
4378 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
4379 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 4380 | if (bay2_handle) |
e0c7dfe7 | 4381 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 4382 | |
d8fd94d9 HMH |
4383 | tp_features.bay_status = bay_handle && |
4384 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
4385 | tp_features.bay_status2 = bay2_handle && | |
4386 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 4387 | |
d8fd94d9 HMH |
4388 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
4389 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
4390 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
4391 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 4392 | |
fe08bc4b HMH |
4393 | vdbg_printk(TPACPI_DBG_INIT, |
4394 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
4395 | str_supported(tp_features.bay_status), |
4396 | str_supported(tp_features.bay_eject), | |
4397 | str_supported(tp_features.bay_status2), | |
4398 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 4399 | |
d8fd94d9 HMH |
4400 | return (tp_features.bay_status || tp_features.bay_eject || |
4401 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
4402 | } |
4403 | ||
56b6aeb0 HMH |
4404 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
4405 | { | |
14e04fb3 | 4406 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca | 4407 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 4408 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 4409 | event, 0); |
56b6aeb0 HMH |
4410 | } |
4411 | ||
78f81cc4 BD |
4412 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
4413 | ||
4414 | static int bay_read(char *p) | |
1da177e4 LT |
4415 | { |
4416 | int len = 0; | |
78f81cc4 BD |
4417 | int occupied = bay_occupied(bay); |
4418 | int occupied2 = bay_occupied(bay2); | |
4419 | int eject, eject2; | |
4420 | ||
d8fd94d9 HMH |
4421 | len += sprintf(p + len, "status:\t\t%s\n", |
4422 | tp_features.bay_status ? | |
4423 | (occupied ? "occupied" : "unoccupied") : | |
4424 | "not supported"); | |
4425 | if (tp_features.bay_status2) | |
78f81cc4 BD |
4426 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
4427 | "occupied" : "unoccupied"); | |
4428 | ||
d8fd94d9 HMH |
4429 | eject = tp_features.bay_eject && occupied; |
4430 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
4431 | |
4432 | if (eject && eject2) | |
4433 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
4434 | else if (eject) | |
1da177e4 | 4435 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
4436 | else if (eject2) |
4437 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
4438 | |
4439 | return len; | |
4440 | } | |
4441 | ||
78f81cc4 | 4442 | static int bay_write(char *buf) |
1da177e4 LT |
4443 | { |
4444 | char *cmd; | |
4445 | ||
d8fd94d9 | 4446 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
4447 | return -ENODEV; |
4448 | ||
1da177e4 | 4449 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 4450 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
4451 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
4452 | return -EIO; | |
d8fd94d9 | 4453 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
4454 | strlencmp(cmd, "eject2") == 0) { |
4455 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
4456 | return -EIO; |
4457 | } else | |
4458 | return -EINVAL; | |
4459 | } | |
4460 | ||
4461 | return 0; | |
78f81cc4 | 4462 | } |
a5763f22 | 4463 | |
8d376cd6 HMH |
4464 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
4465 | .notify = bay_notify, | |
4466 | .handle = &bay_handle, | |
4467 | .type = ACPI_SYSTEM_NOTIFY, | |
4468 | }; | |
4469 | ||
a5763f22 HMH |
4470 | static struct ibm_struct bay_driver_data = { |
4471 | .name = "bay", | |
4472 | .read = bay_read, | |
4473 | .write = bay_write, | |
8d376cd6 | 4474 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
4475 | }; |
4476 | ||
85998248 | 4477 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 4478 | |
56b6aeb0 HMH |
4479 | /************************************************************************* |
4480 | * CMOS subdriver | |
4481 | */ | |
4482 | ||
b616004c HMH |
4483 | /* sysfs cmos_command -------------------------------------------------- */ |
4484 | static ssize_t cmos_command_store(struct device *dev, | |
4485 | struct device_attribute *attr, | |
4486 | const char *buf, size_t count) | |
4487 | { | |
4488 | unsigned long cmos_cmd; | |
4489 | int res; | |
4490 | ||
4491 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4492 | return -EINVAL; | |
4493 | ||
4494 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4495 | return (res)? res : count; | |
4496 | } | |
4497 | ||
4498 | static struct device_attribute dev_attr_cmos_command = | |
4499 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4500 | ||
4501 | /* --------------------------------------------------------------------- */ | |
4502 | ||
a5763f22 | 4503 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4504 | { |
b616004c HMH |
4505 | int res; |
4506 | ||
fe08bc4b HMH |
4507 | vdbg_printk(TPACPI_DBG_INIT, |
4508 | "initializing cmos commands subdriver\n"); | |
4509 | ||
e0c7dfe7 | 4510 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4511 | |
fe08bc4b HMH |
4512 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4513 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4514 | |
4515 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4516 | if (res) | |
4517 | return res; | |
4518 | ||
5fba344c HMH |
4519 | return (cmos_handle)? 0 : 1; |
4520 | } | |
4521 | ||
b616004c HMH |
4522 | static void cmos_exit(void) |
4523 | { | |
4524 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4525 | } | |
4526 | ||
78f81cc4 | 4527 | static int cmos_read(char *p) |
1da177e4 LT |
4528 | { |
4529 | int len = 0; | |
4530 | ||
78f81cc4 BD |
4531 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4532 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
4533 | if (!cmos_handle) |
4534 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4535 | else { | |
4536 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 4537 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
4538 | } |
4539 | ||
4540 | return len; | |
4541 | } | |
4542 | ||
78f81cc4 | 4543 | static int cmos_write(char *buf) |
1da177e4 LT |
4544 | { |
4545 | char *cmd; | |
c9bea99c | 4546 | int cmos_cmd, res; |
1da177e4 LT |
4547 | |
4548 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4549 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4550 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4551 | /* cmos_cmd set */ |
4552 | } else | |
4553 | return -EINVAL; | |
4554 | ||
c9bea99c HMH |
4555 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4556 | if (res) | |
4557 | return res; | |
1da177e4 LT |
4558 | } |
4559 | ||
4560 | return 0; | |
78f81cc4 BD |
4561 | } |
4562 | ||
a5763f22 HMH |
4563 | static struct ibm_struct cmos_driver_data = { |
4564 | .name = "cmos", | |
4565 | .read = cmos_read, | |
4566 | .write = cmos_write, | |
b616004c | 4567 | .exit = cmos_exit, |
a5763f22 | 4568 | }; |
56b6aeb0 HMH |
4569 | |
4570 | /************************************************************************* | |
4571 | * LED subdriver | |
4572 | */ | |
4573 | ||
f74a27d4 HMH |
4574 | enum led_access_mode { |
4575 | TPACPI_LED_NONE = 0, | |
4576 | TPACPI_LED_570, /* 570 */ | |
4577 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4578 | TPACPI_LED_NEW, /* all others */ | |
4579 | }; | |
4580 | ||
4581 | enum { /* For TPACPI_LED_OLD */ | |
4582 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
4583 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
4584 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
4585 | }; | |
4586 | ||
4fa6811b HMH |
4587 | enum led_status_t { |
4588 | TPACPI_LED_OFF = 0, | |
4589 | TPACPI_LED_ON, | |
4590 | TPACPI_LED_BLINK, | |
4591 | }; | |
4592 | ||
9a8e1738 | 4593 | static enum led_access_mode led_supported; |
78f81cc4 | 4594 | |
e0c7dfe7 | 4595 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
4596 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
4597 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
4598 | "LED", /* all others */ |
4599 | ); /* R30, R31 */ | |
4600 | ||
af116101 HMH |
4601 | #define TPACPI_LED_NUMLEDS 8 |
4602 | static struct tpacpi_led_classdev *tpacpi_leds; | |
4603 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 4604 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
4605 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
4606 | "tpacpi::power", | |
4607 | "tpacpi:orange:batt", | |
4608 | "tpacpi:green:batt", | |
4609 | "tpacpi::dock_active", | |
4610 | "tpacpi::bay_active", | |
4611 | "tpacpi::dock_batt", | |
4612 | "tpacpi::unknown_led", | |
4613 | "tpacpi::standby", | |
4614 | }; | |
4615 | ||
24e45bbe | 4616 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
4617 | { |
4618 | int status; | |
af116101 | 4619 | enum led_status_t led_s; |
4fa6811b HMH |
4620 | |
4621 | switch (led_supported) { | |
4622 | case TPACPI_LED_570: | |
4623 | if (!acpi_evalf(ec_handle, | |
4624 | &status, "GLED", "dd", 1 << led)) | |
4625 | return -EIO; | |
af116101 | 4626 | led_s = (status == 0)? |
4fa6811b HMH |
4627 | TPACPI_LED_OFF : |
4628 | ((status == 1)? | |
4629 | TPACPI_LED_ON : | |
4630 | TPACPI_LED_BLINK); | |
af116101 HMH |
4631 | tpacpi_led_state_cache[led] = led_s; |
4632 | return led_s; | |
4fa6811b HMH |
4633 | default: |
4634 | return -ENXIO; | |
4635 | } | |
4636 | ||
4637 | /* not reached */ | |
4638 | } | |
4639 | ||
24e45bbe HMH |
4640 | static int led_set_status(const unsigned int led, |
4641 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
4642 | { |
4643 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
4644 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
4645 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
4646 | |
4647 | int rc = 0; | |
4648 | ||
4649 | switch (led_supported) { | |
4650 | case TPACPI_LED_570: | |
24e45bbe HMH |
4651 | /* 570 */ |
4652 | if (led > 7) | |
4653 | return -EINVAL; | |
4654 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4655 | (1 << led), led_sled_arg1[ledstatus])) | |
4656 | rc = -EIO; | |
4657 | break; | |
4fa6811b | 4658 | case TPACPI_LED_OLD: |
24e45bbe HMH |
4659 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
4660 | if (led > 7) | |
4661 | return -EINVAL; | |
4662 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); | |
4663 | if (rc >= 0) | |
4664 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
4665 | (ledstatus == TPACPI_LED_BLINK) << led); | |
4666 | if (rc >= 0) | |
4667 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
4668 | (ledstatus != TPACPI_LED_OFF) << led); | |
4669 | break; | |
4fa6811b | 4670 | case TPACPI_LED_NEW: |
24e45bbe HMH |
4671 | /* all others */ |
4672 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4673 | led, led_led_arg1[ledstatus])) | |
4674 | rc = -EIO; | |
4675 | break; | |
4fa6811b HMH |
4676 | default: |
4677 | rc = -ENXIO; | |
4678 | } | |
4679 | ||
af116101 HMH |
4680 | if (!rc) |
4681 | tpacpi_led_state_cache[led] = ledstatus; | |
4682 | ||
4683 | return rc; | |
4684 | } | |
4685 | ||
4686 | static void led_sysfs_set_status(unsigned int led, | |
4687 | enum led_brightness brightness) | |
4688 | { | |
4689 | led_set_status(led, | |
4690 | (brightness == LED_OFF) ? | |
4691 | TPACPI_LED_OFF : | |
4692 | (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ? | |
4693 | TPACPI_LED_BLINK : TPACPI_LED_ON); | |
4694 | } | |
4695 | ||
4696 | static void led_set_status_worker(struct work_struct *work) | |
4697 | { | |
4698 | struct tpacpi_led_classdev *data = | |
4699 | container_of(work, struct tpacpi_led_classdev, work); | |
4700 | ||
4701 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
4702 | led_sysfs_set_status(data->led, data->new_brightness); | |
4703 | } | |
4704 | ||
4705 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
4706 | enum led_brightness brightness) | |
4707 | { | |
4708 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4709 | struct tpacpi_led_classdev, led_classdev); | |
4710 | ||
4711 | data->new_brightness = brightness; | |
e0e3c061 | 4712 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4713 | } |
4714 | ||
4715 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
4716 | unsigned long *delay_on, unsigned long *delay_off) | |
4717 | { | |
4718 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4719 | struct tpacpi_led_classdev, led_classdev); | |
4720 | ||
4721 | /* Can we choose the flash rate? */ | |
4722 | if (*delay_on == 0 && *delay_off == 0) { | |
4723 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
4724 | *delay_on = 500; /* ms */ | |
4725 | *delay_off = 500; /* ms */ | |
4726 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
4727 | return -EINVAL; | |
4728 | ||
4729 | data->new_brightness = TPACPI_LED_BLINK; | |
e0e3c061 | 4730 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4731 | |
4732 | return 0; | |
4733 | } | |
4734 | ||
4735 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
4736 | { | |
4737 | int rc; | |
4738 | ||
4739 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4740 | struct tpacpi_led_classdev, led_classdev); | |
4741 | ||
4742 | rc = led_get_status(data->led); | |
4743 | ||
4744 | if (rc == TPACPI_LED_OFF || rc < 0) | |
4745 | rc = LED_OFF; /* no error handling in led class :( */ | |
4746 | else | |
4747 | rc = LED_FULL; | |
4748 | ||
4fa6811b HMH |
4749 | return rc; |
4750 | } | |
4751 | ||
af116101 HMH |
4752 | static void led_exit(void) |
4753 | { | |
4754 | unsigned int i; | |
4755 | ||
4756 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4757 | if (tpacpi_leds[i].led_classdev.name) | |
4758 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
4759 | } | |
4760 | ||
4761 | kfree(tpacpi_leds); | |
af116101 HMH |
4762 | } |
4763 | ||
a5763f22 | 4764 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4765 | { |
af116101 HMH |
4766 | unsigned int i; |
4767 | int rc; | |
4768 | ||
fe08bc4b HMH |
4769 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
4770 | ||
e0c7dfe7 | 4771 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 4772 | |
78f81cc4 BD |
4773 | if (!led_handle) |
4774 | /* led not supported on R30, R31 */ | |
efa27145 | 4775 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
4776 | else if (strlencmp(led_path, "SLED") == 0) |
4777 | /* 570 */ | |
efa27145 | 4778 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
4779 | else if (strlencmp(led_path, "SYSL") == 0) |
4780 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 4781 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
4782 | else |
4783 | /* all others */ | |
efa27145 | 4784 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 4785 | |
fe08bc4b HMH |
4786 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
4787 | str_supported(led_supported), led_supported); | |
4788 | ||
af116101 HMH |
4789 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
4790 | GFP_KERNEL); | |
4791 | if (!tpacpi_leds) { | |
4792 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
4793 | return -ENOMEM; | |
4794 | } | |
4795 | ||
4796 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4797 | tpacpi_leds[i].led = i; | |
4798 | ||
4799 | tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set; | |
4800 | tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set; | |
4801 | if (led_supported == TPACPI_LED_570) | |
4802 | tpacpi_leds[i].led_classdev.brightness_get = | |
4803 | &led_sysfs_get; | |
4804 | ||
4805 | tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i]; | |
4806 | ||
4807 | INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker); | |
4808 | ||
4809 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4810 | &tpacpi_leds[i].led_classdev); | |
4811 | if (rc < 0) { | |
4812 | tpacpi_leds[i].led_classdev.name = NULL; | |
4813 | led_exit(); | |
4814 | return rc; | |
4815 | } | |
4816 | } | |
4817 | ||
5fba344c | 4818 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
4819 | } |
4820 | ||
4fa6811b HMH |
4821 | #define str_led_status(s) \ |
4822 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
4823 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
4824 | |
4825 | static int led_read(char *p) | |
1da177e4 LT |
4826 | { |
4827 | int len = 0; | |
4828 | ||
78f81cc4 BD |
4829 | if (!led_supported) { |
4830 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4831 | return len; | |
4832 | } | |
4833 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4834 | ||
efa27145 | 4835 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
4836 | /* 570 */ |
4837 | int i, status; | |
4838 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
4839 | status = led_get_status(i); |
4840 | if (status < 0) | |
78f81cc4 BD |
4841 | return -EIO; |
4842 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 4843 | i, str_led_status(status)); |
78f81cc4 BD |
4844 | } |
4845 | } | |
4846 | ||
1da177e4 | 4847 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 4848 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
4849 | |
4850 | return len; | |
4851 | } | |
4852 | ||
78f81cc4 | 4853 | static int led_write(char *buf) |
1da177e4 LT |
4854 | { |
4855 | char *cmd; | |
4fa6811b HMH |
4856 | int led, rc; |
4857 | enum led_status_t s; | |
78f81cc4 BD |
4858 | |
4859 | if (!led_supported) | |
4860 | return -ENODEV; | |
1da177e4 LT |
4861 | |
4862 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 4863 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
4864 | return -EINVAL; |
4865 | ||
78f81cc4 | 4866 | if (strstr(cmd, "off")) { |
4fa6811b | 4867 | s = TPACPI_LED_OFF; |
1da177e4 | 4868 | } else if (strstr(cmd, "on")) { |
4fa6811b | 4869 | s = TPACPI_LED_ON; |
78f81cc4 | 4870 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 4871 | s = TPACPI_LED_BLINK; |
78f81cc4 | 4872 | } else { |
4fa6811b | 4873 | return -EINVAL; |
78f81cc4 | 4874 | } |
4fa6811b HMH |
4875 | |
4876 | rc = led_set_status(led, s); | |
4877 | if (rc < 0) | |
4878 | return rc; | |
78f81cc4 BD |
4879 | } |
4880 | ||
4881 | return 0; | |
4882 | } | |
4883 | ||
a5763f22 HMH |
4884 | static struct ibm_struct led_driver_data = { |
4885 | .name = "led", | |
4886 | .read = led_read, | |
4887 | .write = led_write, | |
af116101 | 4888 | .exit = led_exit, |
a5763f22 HMH |
4889 | }; |
4890 | ||
56b6aeb0 HMH |
4891 | /************************************************************************* |
4892 | * Beep subdriver | |
4893 | */ | |
4894 | ||
e0c7dfe7 | 4895 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 4896 | |
a5763f22 | 4897 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 4898 | { |
fe08bc4b HMH |
4899 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
4900 | ||
e0c7dfe7 | 4901 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 4902 | |
fe08bc4b HMH |
4903 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
4904 | str_supported(beep_handle != NULL)); | |
4905 | ||
5fba344c HMH |
4906 | return (beep_handle)? 0 : 1; |
4907 | } | |
4908 | ||
78f81cc4 BD |
4909 | static int beep_read(char *p) |
4910 | { | |
4911 | int len = 0; | |
4912 | ||
4913 | if (!beep_handle) | |
4914 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4915 | else { | |
4916 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4917 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
4918 | } | |
4919 | ||
4920 | return len; | |
4921 | } | |
4922 | ||
4923 | static int beep_write(char *buf) | |
4924 | { | |
4925 | char *cmd; | |
4926 | int beep_cmd; | |
4927 | ||
4928 | if (!beep_handle) | |
4929 | return -ENODEV; | |
4930 | ||
4931 | while ((cmd = next_cmd(&buf))) { | |
4932 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
4933 | beep_cmd >= 0 && beep_cmd <= 17) { | |
4934 | /* beep_cmd set */ | |
4935 | } else | |
4936 | return -EINVAL; | |
4937 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
4938 | return -EIO; | |
4939 | } | |
4940 | ||
4941 | return 0; | |
4942 | } | |
4943 | ||
a5763f22 HMH |
4944 | static struct ibm_struct beep_driver_data = { |
4945 | .name = "beep", | |
4946 | .read = beep_read, | |
4947 | .write = beep_write, | |
4948 | }; | |
4949 | ||
56b6aeb0 HMH |
4950 | /************************************************************************* |
4951 | * Thermal subdriver | |
4952 | */ | |
78f81cc4 | 4953 | |
f74a27d4 HMH |
4954 | enum thermal_access_mode { |
4955 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
4956 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
4957 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
4958 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
4959 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
4960 | }; | |
4961 | ||
4962 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
4963 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
4964 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
4965 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
4966 | }; | |
4967 | ||
4968 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
4969 | struct ibm_thermal_sensors_struct { | |
4970 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
4971 | }; | |
4972 | ||
a26f878a | 4973 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 4974 | |
b21a15f6 HMH |
4975 | /* idx is zero-based */ |
4976 | static int thermal_get_sensor(int idx, s32 *value) | |
4977 | { | |
4978 | int t; | |
4979 | s8 tmp; | |
4980 | char tmpi[5]; | |
4981 | ||
4982 | t = TP_EC_THERMAL_TMP0; | |
4983 | ||
4984 | switch (thermal_read_mode) { | |
4985 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
4986 | case TPACPI_THERMAL_TPEC_16: | |
4987 | if (idx >= 8 && idx <= 15) { | |
4988 | t = TP_EC_THERMAL_TMP8; | |
4989 | idx -= 8; | |
4990 | } | |
4991 | /* fallthrough */ | |
4992 | #endif | |
4993 | case TPACPI_THERMAL_TPEC_8: | |
4994 | if (idx <= 7) { | |
4995 | if (!acpi_ec_read(t + idx, &tmp)) | |
4996 | return -EIO; | |
4997 | *value = tmp * 1000; | |
4998 | return 0; | |
4999 | } | |
5000 | break; | |
5001 | ||
5002 | case TPACPI_THERMAL_ACPI_UPDT: | |
5003 | if (idx <= 7) { | |
5004 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5005 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5006 | return -EIO; | |
5007 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5008 | return -EIO; | |
5009 | *value = (t - 2732) * 100; | |
5010 | return 0; | |
5011 | } | |
5012 | break; | |
5013 | ||
5014 | case TPACPI_THERMAL_ACPI_TMP07: | |
5015 | if (idx <= 7) { | |
5016 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5017 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5018 | return -EIO; | |
5019 | if (t > 127 || t < -127) | |
5020 | t = TP_EC_THERMAL_TMP_NA; | |
5021 | *value = t * 1000; | |
5022 | return 0; | |
5023 | } | |
5024 | break; | |
5025 | ||
5026 | case TPACPI_THERMAL_NONE: | |
5027 | default: | |
5028 | return -ENOSYS; | |
5029 | } | |
5030 | ||
5031 | return -EINVAL; | |
5032 | } | |
5033 | ||
5034 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5035 | { | |
5036 | int res, i; | |
5037 | int n; | |
5038 | ||
5039 | n = 8; | |
5040 | i = 0; | |
5041 | ||
5042 | if (!s) | |
5043 | return -EINVAL; | |
5044 | ||
5045 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5046 | n = 16; | |
5047 | ||
35ff8b9f | 5048 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5049 | res = thermal_get_sensor(i, &s->temp[i]); |
5050 | if (res) | |
5051 | return res; | |
5052 | } | |
5053 | ||
5054 | return n; | |
5055 | } | |
f74a27d4 | 5056 | |
2c37aa4e HMH |
5057 | /* sysfs temp##_input -------------------------------------------------- */ |
5058 | ||
5059 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5060 | struct device_attribute *attr, | |
5061 | char *buf) | |
5062 | { | |
5063 | struct sensor_device_attribute *sensor_attr = | |
5064 | to_sensor_dev_attr(attr); | |
5065 | int idx = sensor_attr->index; | |
5066 | s32 value; | |
5067 | int res; | |
5068 | ||
5069 | res = thermal_get_sensor(idx, &value); | |
5070 | if (res) | |
5071 | return res; | |
5072 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
5073 | return -ENXIO; | |
5074 | ||
5075 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5076 | } | |
5077 | ||
5078 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5079 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5080 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5081 | |
5082 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5083 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5084 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5085 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5086 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5087 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5088 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5089 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5090 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5091 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5092 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5093 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5094 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5095 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5096 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5097 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5098 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5099 | }; | |
5100 | ||
5101 | #define THERMAL_ATTRS(X) \ | |
5102 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5103 | ||
5104 | static struct attribute *thermal_temp_input_attr[] = { | |
5105 | THERMAL_ATTRS(8), | |
5106 | THERMAL_ATTRS(9), | |
5107 | THERMAL_ATTRS(10), | |
5108 | THERMAL_ATTRS(11), | |
5109 | THERMAL_ATTRS(12), | |
5110 | THERMAL_ATTRS(13), | |
5111 | THERMAL_ATTRS(14), | |
5112 | THERMAL_ATTRS(15), | |
5113 | THERMAL_ATTRS(0), | |
5114 | THERMAL_ATTRS(1), | |
5115 | THERMAL_ATTRS(2), | |
5116 | THERMAL_ATTRS(3), | |
5117 | THERMAL_ATTRS(4), | |
5118 | THERMAL_ATTRS(5), | |
5119 | THERMAL_ATTRS(6), | |
5120 | THERMAL_ATTRS(7), | |
5121 | NULL | |
5122 | }; | |
5123 | ||
5124 | static const struct attribute_group thermal_temp_input16_group = { | |
5125 | .attrs = thermal_temp_input_attr | |
5126 | }; | |
5127 | ||
5128 | static const struct attribute_group thermal_temp_input8_group = { | |
5129 | .attrs = &thermal_temp_input_attr[8] | |
5130 | }; | |
5131 | ||
5132 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5133 | #undef THERMAL_ATTRS | |
5134 | ||
5135 | /* --------------------------------------------------------------------- */ | |
5136 | ||
a5763f22 | 5137 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5138 | { |
60eb0b35 HMH |
5139 | u8 t, ta1, ta2; |
5140 | int i; | |
5fba344c | 5141 | int acpi_tmp7; |
2c37aa4e | 5142 | int res; |
5fba344c | 5143 | |
fe08bc4b HMH |
5144 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5145 | ||
5fba344c | 5146 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5147 | |
3d6f99ca | 5148 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5149 | /* |
5150 | * Direct EC access mode: sensors at registers | |
5151 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5152 | * non-implemented, thermal sensors return 0x80 when | |
5153 | * not available | |
5154 | */ | |
78f81cc4 | 5155 | |
60eb0b35 HMH |
5156 | ta1 = ta2 = 0; |
5157 | for (i = 0; i < 8; i++) { | |
04cc862c | 5158 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5159 | ta1 |= t; |
5160 | } else { | |
5161 | ta1 = 0; | |
5162 | break; | |
5163 | } | |
04cc862c | 5164 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5165 | ta2 |= t; |
5166 | } else { | |
5167 | ta1 = 0; | |
5168 | break; | |
5169 | } | |
5170 | } | |
5171 | if (ta1 == 0) { | |
5172 | /* This is sheer paranoia, but we handle it anyway */ | |
5173 | if (acpi_tmp7) { | |
e0c7dfe7 | 5174 | printk(TPACPI_ERR |
60eb0b35 | 5175 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5176 | "falling back to ACPI TMPx access " |
5177 | "mode\n"); | |
efa27145 | 5178 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5179 | } else { |
e0c7dfe7 | 5180 | printk(TPACPI_ERR |
60eb0b35 HMH |
5181 | "ThinkPad ACPI EC access misbehaving, " |
5182 | "disabling thermal sensors access\n"); | |
efa27145 | 5183 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5184 | } |
5185 | } else { | |
5186 | thermal_read_mode = | |
5187 | (ta2 != 0) ? | |
efa27145 | 5188 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5189 | } |
5190 | } else if (acpi_tmp7) { | |
a26f878a HMH |
5191 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
5192 | /* 600e/x, 770e, 770x */ | |
efa27145 | 5193 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
5194 | } else { |
5195 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 5196 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5197 | } |
5198 | } else { | |
5199 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5200 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5201 | } |
78f81cc4 | 5202 | |
fe08bc4b HMH |
5203 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5204 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5205 | thermal_read_mode); | |
5206 | ||
35ff8b9f | 5207 | switch (thermal_read_mode) { |
2c37aa4e | 5208 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5209 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5210 | &thermal_temp_input16_group); |
5211 | if (res) | |
5212 | return res; | |
5213 | break; | |
5214 | case TPACPI_THERMAL_TPEC_8: | |
5215 | case TPACPI_THERMAL_ACPI_TMP07: | |
5216 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5217 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5218 | &thermal_temp_input8_group); |
5219 | if (res) | |
5220 | return res; | |
5221 | break; | |
5222 | case TPACPI_THERMAL_NONE: | |
5223 | default: | |
5224 | return 1; | |
5225 | } | |
5226 | ||
5227 | return 0; | |
5228 | } | |
5229 | ||
5230 | static void thermal_exit(void) | |
5231 | { | |
35ff8b9f | 5232 | switch (thermal_read_mode) { |
2c37aa4e | 5233 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5234 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5235 | &thermal_temp_input16_group); |
5236 | break; | |
5237 | case TPACPI_THERMAL_TPEC_8: | |
5238 | case TPACPI_THERMAL_ACPI_TMP07: | |
5239 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5240 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5241 | &thermal_temp_input16_group); |
5242 | break; | |
5243 | case TPACPI_THERMAL_NONE: | |
5244 | default: | |
5245 | break; | |
5246 | } | |
78f81cc4 BD |
5247 | } |
5248 | ||
a26f878a HMH |
5249 | static int thermal_read(char *p) |
5250 | { | |
5251 | int len = 0; | |
5252 | int n, i; | |
5253 | struct ibm_thermal_sensors_struct t; | |
5254 | ||
5255 | n = thermal_get_sensors(&t); | |
5256 | if (unlikely(n < 0)) | |
5257 | return n; | |
5258 | ||
5259 | len += sprintf(p + len, "temperatures:\t"); | |
5260 | ||
5261 | if (n > 0) { | |
5262 | for (i = 0; i < (n - 1); i++) | |
5263 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
5264 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
5265 | } else | |
5266 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
5267 | |
5268 | return len; | |
5269 | } | |
5270 | ||
a5763f22 HMH |
5271 | static struct ibm_struct thermal_driver_data = { |
5272 | .name = "thermal", | |
5273 | .read = thermal_read, | |
2c37aa4e | 5274 | .exit = thermal_exit, |
a5763f22 HMH |
5275 | }; |
5276 | ||
56b6aeb0 HMH |
5277 | /************************************************************************* |
5278 | * EC Dump subdriver | |
5279 | */ | |
5280 | ||
78f81cc4 BD |
5281 | static u8 ecdump_regs[256]; |
5282 | ||
5283 | static int ecdump_read(char *p) | |
5284 | { | |
5285 | int len = 0; | |
5286 | int i, j; | |
5287 | u8 v; | |
5288 | ||
5289 | len += sprintf(p + len, "EC " | |
5290 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
5291 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
5292 | for (i = 0; i < 256; i += 16) { | |
5293 | len += sprintf(p + len, "EC 0x%02x:", i); | |
5294 | for (j = 0; j < 16; j++) { | |
5295 | if (!acpi_ec_read(i + j, &v)) | |
5296 | break; | |
5297 | if (v != ecdump_regs[i + j]) | |
5298 | len += sprintf(p + len, " *%02x", v); | |
5299 | else | |
5300 | len += sprintf(p + len, " %02x", v); | |
5301 | ecdump_regs[i + j] = v; | |
5302 | } | |
5303 | len += sprintf(p + len, "\n"); | |
5304 | if (j != 16) | |
5305 | break; | |
5306 | } | |
5307 | ||
5308 | /* These are way too dangerous to advertise openly... */ | |
5309 | #if 0 | |
5310 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
5311 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
5312 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
5313 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
5314 | #endif | |
5315 | return len; | |
5316 | } | |
5317 | ||
5318 | static int ecdump_write(char *buf) | |
5319 | { | |
5320 | char *cmd; | |
5321 | int i, v; | |
5322 | ||
5323 | while ((cmd = next_cmd(&buf))) { | |
5324 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
5325 | /* i and v set */ | |
5326 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
5327 | /* i and v set */ | |
5328 | } else | |
5329 | return -EINVAL; | |
5330 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
5331 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
5332 | return -EIO; |
5333 | } else | |
5334 | return -EINVAL; | |
5335 | } | |
5336 | ||
5337 | return 0; | |
78f81cc4 BD |
5338 | } |
5339 | ||
a5763f22 HMH |
5340 | static struct ibm_struct ecdump_driver_data = { |
5341 | .name = "ecdump", | |
5342 | .read = ecdump_read, | |
5343 | .write = ecdump_write, | |
92641177 | 5344 | .flags.experimental = 1, |
a5763f22 HMH |
5345 | }; |
5346 | ||
56b6aeb0 HMH |
5347 | /************************************************************************* |
5348 | * Backlight/brightness subdriver | |
5349 | */ | |
5350 | ||
f74a27d4 HMH |
5351 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5352 | ||
e11aecf1 HMH |
5353 | enum { |
5354 | TP_EC_BACKLIGHT = 0x31, | |
5355 | ||
5356 | /* TP_EC_BACKLIGHT bitmasks */ | |
5357 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5358 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5359 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5360 | }; | |
5361 | ||
94954cc6 | 5362 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
5363 | static int brightness_mode; |
5364 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
5365 | ||
b21a15f6 | 5366 | static struct mutex brightness_mutex; |
56b6aeb0 | 5367 | |
b21a15f6 HMH |
5368 | /* |
5369 | * ThinkPads can read brightness from two places: EC 0x31, or | |
5370 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
e11aecf1 HMH |
5371 | * |
5372 | * EC 0x31 has the following layout | |
5373 | * Bit 7: unknown function | |
5374 | * Bit 6: unknown function | |
5375 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5376 | * Bit 4: must be set to zero to avoid problems | |
5377 | * Bit 3-0: backlight brightness level | |
5378 | * | |
5379 | * brightness_get_raw returns status data in the EC 0x31 layout | |
b21a15f6 | 5380 | */ |
e11aecf1 | 5381 | static int brightness_get_raw(int *status) |
b21a15f6 HMH |
5382 | { |
5383 | u8 lec = 0, lcmos = 0, level = 0; | |
5384 | ||
5385 | if (brightness_mode & 1) { | |
e11aecf1 | 5386 | if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) |
b21a15f6 | 5387 | return -EIO; |
e11aecf1 | 5388 | level = lec & TP_EC_BACKLIGHT_LVLMSK; |
b21a15f6 HMH |
5389 | }; |
5390 | if (brightness_mode & 2) { | |
5391 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
5392 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5393 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5394 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
5395 | level = lcmos; | |
5396 | } | |
5397 | ||
2d5e94d7 | 5398 | if (brightness_mode == 3) { |
e11aecf1 HMH |
5399 | *status = lec; /* Prefer EC, CMOS is just a backing store */ |
5400 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
2d5e94d7 HMH |
5401 | if (lec == lcmos) |
5402 | tp_warned.bright_cmos_ec_unsync = 0; | |
5403 | else { | |
5404 | if (!tp_warned.bright_cmos_ec_unsync) { | |
5405 | printk(TPACPI_ERR | |
5406 | "CMOS NVRAM (%u) and EC (%u) do not " | |
5407 | "agree on display brightness level\n", | |
5408 | (unsigned int) lcmos, | |
5409 | (unsigned int) lec); | |
5410 | tp_warned.bright_cmos_ec_unsync = 1; | |
5411 | } | |
5412 | return -EIO; | |
5413 | } | |
e11aecf1 HMH |
5414 | } else { |
5415 | *status = level; | |
b21a15f6 HMH |
5416 | } |
5417 | ||
e11aecf1 | 5418 | return 0; |
b21a15f6 HMH |
5419 | } |
5420 | ||
5421 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
5422 | static int brightness_set(int value) | |
5423 | { | |
5424 | int cmos_cmd, inc, i, res; | |
5425 | int current_value; | |
e11aecf1 | 5426 | int command_bits; |
b21a15f6 | 5427 | |
e11aecf1 HMH |
5428 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
5429 | value < 0) | |
b21a15f6 HMH |
5430 | return -EINVAL; |
5431 | ||
7646ea88 | 5432 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
5433 | if (res < 0) |
5434 | return res; | |
5435 | ||
e11aecf1 HMH |
5436 | res = brightness_get_raw(¤t_value); |
5437 | if (res < 0) | |
b21a15f6 | 5438 | goto errout; |
e11aecf1 HMH |
5439 | |
5440 | command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; | |
5441 | current_value &= TP_EC_BACKLIGHT_LVLMSK; | |
b21a15f6 HMH |
5442 | |
5443 | cmos_cmd = value > current_value ? | |
5444 | TP_CMOS_BRIGHTNESS_UP : | |
5445 | TP_CMOS_BRIGHTNESS_DOWN; | |
5446 | inc = (value > current_value)? 1 : -1; | |
5447 | ||
5448 | res = 0; | |
5449 | for (i = current_value; i != value; i += inc) { | |
5450 | if ((brightness_mode & 2) && | |
5451 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
5452 | res = -EIO; | |
5453 | goto errout; | |
5454 | } | |
5455 | if ((brightness_mode & 1) && | |
e11aecf1 HMH |
5456 | !acpi_ec_write(TP_EC_BACKLIGHT, |
5457 | (i + inc) | command_bits)) { | |
b21a15f6 HMH |
5458 | res = -EIO; |
5459 | goto errout;; | |
5460 | } | |
5461 | } | |
5462 | ||
5463 | errout: | |
5464 | mutex_unlock(&brightness_mutex); | |
5465 | return res; | |
5466 | } | |
5467 | ||
5468 | /* sysfs backlight class ----------------------------------------------- */ | |
5469 | ||
5470 | static int brightness_update_status(struct backlight_device *bd) | |
5471 | { | |
5472 | /* it is the backlight class's job (caller) to handle | |
5473 | * EINTR and other errors properly */ | |
5474 | return brightness_set( | |
5475 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
5476 | bd->props.power == FB_BLANK_UNBLANK) ? | |
5477 | bd->props.brightness : 0); | |
5478 | } | |
5479 | ||
e11aecf1 | 5480 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 5481 | { |
e11aecf1 | 5482 | int status, res; |
a3f104c0 | 5483 | |
e11aecf1 HMH |
5484 | res = brightness_get_raw(&status); |
5485 | if (res < 0) | |
5486 | return 0; /* FIXME: teach backlight about error handling */ | |
e11e211a | 5487 | |
e11aecf1 | 5488 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
5489 | } |
5490 | ||
b21a15f6 | 5491 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
5492 | .get_brightness = brightness_get, |
5493 | .update_status = brightness_update_status, | |
56b6aeb0 | 5494 | }; |
e11e211a | 5495 | |
b21a15f6 | 5496 | /* --------------------------------------------------------------------- */ |
e11e211a | 5497 | |
a5763f22 | 5498 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
5499 | { |
5500 | int b; | |
5501 | ||
fe08bc4b HMH |
5502 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
5503 | ||
f432255e HMH |
5504 | mutex_init(&brightness_mutex); |
5505 | ||
b5972796 HMH |
5506 | /* |
5507 | * We always attempt to detect acpi support, so as to switch | |
5508 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
5509 | * going to publish a backlight interface | |
5510 | */ | |
5511 | b = tpacpi_check_std_acpi_brightness_support(); | |
5512 | if (b > 0) { | |
2dba1b5d TR |
5513 | |
5514 | if (acpi_video_backlight_support()) { | |
5515 | if (brightness_enable > 1) { | |
5516 | printk(TPACPI_NOTICE | |
5517 | "Standard ACPI backlight interface " | |
5518 | "available, not loading native one.\n"); | |
5519 | return 1; | |
5520 | } else if (brightness_enable == 1) { | |
5521 | printk(TPACPI_NOTICE | |
5522 | "Backlight control force enabled, even if standard " | |
5523 | "ACPI backlight interface is available\n"); | |
5524 | } | |
5525 | } else { | |
5526 | if (brightness_enable > 1) { | |
5527 | printk(TPACPI_NOTICE | |
5528 | "Standard ACPI backlight interface not " | |
5529 | "available, thinkpad_acpi native " | |
5530 | "brightness control enabled\n"); | |
5531 | } | |
e11e211a | 5532 | } |
87cc537a HMH |
5533 | } |
5534 | ||
b5972796 HMH |
5535 | if (!brightness_enable) { |
5536 | dbg_printk(TPACPI_DBG_INIT, | |
5537 | "brightness support disabled by " | |
5538 | "module parameter\n"); | |
5539 | return 1; | |
5540 | } | |
5541 | ||
5542 | if (b > 16) { | |
5543 | printk(TPACPI_ERR | |
5544 | "Unsupported brightness interface, " | |
5545 | "please contact %s\n", TPACPI_MAIL); | |
5546 | return 1; | |
5547 | } | |
5548 | if (b == 16) | |
5549 | tp_features.bright_16levels = 1; | |
5550 | ||
24d3b774 HMH |
5551 | if (!brightness_mode) { |
5552 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
5553 | brightness_mode = 2; | |
5554 | else | |
5555 | brightness_mode = 3; | |
5556 | ||
5557 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
5558 | brightness_mode); | |
5559 | } | |
5560 | ||
5561 | if (brightness_mode > 3) | |
5562 | return -EINVAL; | |
5563 | ||
e11aecf1 | 5564 | if (brightness_get_raw(&b) < 0) |
24d3b774 | 5565 | return 1; |
56b6aeb0 | 5566 | |
a3f104c0 | 5567 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
5568 | printk(TPACPI_INFO |
5569 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 5570 | |
7d5a015e HMH |
5571 | ibm_backlight_device = backlight_device_register( |
5572 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
5573 | &ibm_backlight_data); | |
56b6aeb0 | 5574 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 5575 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
5576 | return PTR_ERR(ibm_backlight_device); |
5577 | } | |
fe08bc4b | 5578 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 5579 | |
a3f104c0 HMH |
5580 | ibm_backlight_device->props.max_brightness = |
5581 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 5582 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
5583 | backlight_update_status(ibm_backlight_device); |
5584 | ||
5585 | return 0; | |
5586 | } | |
5587 | ||
5588 | static void brightness_exit(void) | |
5589 | { | |
5590 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
5591 | vdbg_printk(TPACPI_DBG_EXIT, |
5592 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 | 5593 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 HMH |
5594 | } |
5595 | } | |
5596 | ||
56b6aeb0 HMH |
5597 | static int brightness_read(char *p) |
5598 | { | |
5599 | int len = 0; | |
5600 | int level; | |
5601 | ||
35ff8b9f HMH |
5602 | level = brightness_get(NULL); |
5603 | if (level < 0) { | |
56b6aeb0 HMH |
5604 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
5605 | } else { | |
a3f104c0 | 5606 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
5607 | len += sprintf(p + len, "commands:\tup, down\n"); |
5608 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
5609 | " (<level> is 0-%d)\n", |
5610 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
5611 | } |
5612 | ||
5613 | return len; | |
5614 | } | |
5615 | ||
8acb0250 HM |
5616 | static int brightness_write(char *buf) |
5617 | { | |
5618 | int level; | |
4273af8d | 5619 | int rc; |
1da177e4 | 5620 | char *cmd; |
a3f104c0 | 5621 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 5622 | |
4273af8d HMH |
5623 | level = brightness_get(NULL); |
5624 | if (level < 0) | |
5625 | return level; | |
78f81cc4 | 5626 | |
4273af8d | 5627 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 5628 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
5629 | if (level < max_level) |
5630 | level++; | |
78f81cc4 | 5631 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
5632 | if (level > 0) |
5633 | level--; | |
5634 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
5635 | level >= 0 && level <= max_level) { | |
5636 | /* new level set */ | |
78f81cc4 BD |
5637 | } else |
5638 | return -EINVAL; | |
78f81cc4 BD |
5639 | } |
5640 | ||
4273af8d HMH |
5641 | /* |
5642 | * Now we know what the final level should be, so we try to set it. | |
5643 | * Doing it this way makes the syscall restartable in case of EINTR | |
5644 | */ | |
5645 | rc = brightness_set(level); | |
5646 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
5647 | } |
5648 | ||
a5763f22 HMH |
5649 | static struct ibm_struct brightness_driver_data = { |
5650 | .name = "brightness", | |
5651 | .read = brightness_read, | |
5652 | .write = brightness_write, | |
5653 | .exit = brightness_exit, | |
5654 | }; | |
5655 | ||
56b6aeb0 HMH |
5656 | /************************************************************************* |
5657 | * Volume subdriver | |
5658 | */ | |
fb87a811 | 5659 | |
f74a27d4 HMH |
5660 | static int volume_offset = 0x30; |
5661 | ||
78f81cc4 BD |
5662 | static int volume_read(char *p) |
5663 | { | |
5664 | int len = 0; | |
5665 | u8 level; | |
5666 | ||
5667 | if (!acpi_ec_read(volume_offset, &level)) { | |
5668 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
5669 | } else { | |
5670 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
5671 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
5672 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
5673 | len += sprintf(p + len, "commands:\tlevel <level>" | |
5674 | " (<level> is 0-15)\n"); | |
5675 | } | |
5676 | ||
5677 | return len; | |
5678 | } | |
5679 | ||
78f81cc4 BD |
5680 | static int volume_write(char *buf) |
5681 | { | |
5682 | int cmos_cmd, inc, i; | |
5683 | u8 level, mute; | |
5684 | int new_level, new_mute; | |
5685 | char *cmd; | |
5686 | ||
5687 | while ((cmd = next_cmd(&buf))) { | |
5688 | if (!acpi_ec_read(volume_offset, &level)) | |
5689 | return -EIO; | |
5690 | new_mute = mute = level & 0x40; | |
5691 | new_level = level = level & 0xf; | |
5692 | ||
5693 | if (strlencmp(cmd, "up") == 0) { | |
5694 | if (mute) | |
5695 | new_mute = 0; | |
5696 | else | |
5697 | new_level = level == 15 ? 15 : level + 1; | |
5698 | } else if (strlencmp(cmd, "down") == 0) { | |
5699 | if (mute) | |
5700 | new_mute = 0; | |
5701 | else | |
5702 | new_level = level == 0 ? 0 : level - 1; | |
5703 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
5704 | new_level >= 0 && new_level <= 15) { | |
5705 | /* new_level set */ | |
5706 | } else if (strlencmp(cmd, "mute") == 0) { | |
5707 | new_mute = 0x40; | |
1da177e4 LT |
5708 | } else |
5709 | return -EINVAL; | |
5710 | ||
35ff8b9f HMH |
5711 | if (new_level != level) { |
5712 | /* mute doesn't change */ | |
5713 | ||
5714 | cmos_cmd = (new_level > level) ? | |
5715 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
5716 | inc = new_level > level ? 1 : -1; |
5717 | ||
c9bea99c | 5718 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5719 | !acpi_ec_write(volume_offset, level))) |
5720 | return -EIO; | |
5721 | ||
5722 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 5723 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5724 | !acpi_ec_write(volume_offset, i + inc)) |
5725 | return -EIO; | |
5726 | ||
35ff8b9f HMH |
5727 | if (mute && |
5728 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
5729 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 5730 | return -EIO; |
35ff8b9f | 5731 | } |
78f81cc4 BD |
5732 | } |
5733 | ||
35ff8b9f HMH |
5734 | if (new_mute != mute) { |
5735 | /* level doesn't change */ | |
5736 | ||
5737 | cmos_cmd = (new_mute) ? | |
5738 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 5739 | |
c9bea99c | 5740 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5741 | !acpi_ec_write(volume_offset, level + new_mute)) |
5742 | return -EIO; | |
5743 | } | |
5744 | } | |
5745 | ||
5746 | return 0; | |
5747 | } | |
5748 | ||
a5763f22 HMH |
5749 | static struct ibm_struct volume_driver_data = { |
5750 | .name = "volume", | |
5751 | .read = volume_read, | |
5752 | .write = volume_write, | |
5753 | }; | |
56b6aeb0 HMH |
5754 | |
5755 | /************************************************************************* | |
5756 | * Fan subdriver | |
5757 | */ | |
5758 | ||
5759 | /* | |
5760 | * FAN ACCESS MODES | |
5761 | * | |
efa27145 | 5762 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
5763 | * ACPI GFAN method: returns fan level |
5764 | * | |
efa27145 | 5765 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 5766 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 5767 | * |
efa27145 | 5768 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5769 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
5770 | * | |
f51d1a39 HMH |
5771 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
5772 | * it for writing. | |
56b6aeb0 | 5773 | * |
efa27145 | 5774 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
5775 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
5776 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
5777 | * |
5778 | * Fan speed changes of any sort (including those caused by the | |
5779 | * disengaged mode) are usually done slowly by the firmware as the | |
5780 | * maximum ammount of fan duty cycle change per second seems to be | |
5781 | * limited. | |
5782 | * | |
5783 | * Reading is not available if GFAN exists. | |
5784 | * Writing is not available if SFAN exists. | |
5785 | * | |
5786 | * Bits | |
5787 | * 7 automatic mode engaged; | |
5788 | * (default operation mode of the ThinkPad) | |
5789 | * fan level is ignored in this mode. | |
f51d1a39 | 5790 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 5791 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
5792 | * the tachometer while the fan controller ramps up |
5793 | * the speed (which can take up to a few *minutes*). | |
5794 | * Speeds up fan to 100% duty-cycle, which is far above | |
5795 | * the standard RPM levels. It is not impossible that | |
5796 | * it could cause hardware damage. | |
56b6aeb0 HMH |
5797 | * 5-3 unused in some models. Extra bits for fan level |
5798 | * in others, but still useless as all values above | |
5799 | * 7 map to the same speed as level 7 in these models. | |
5800 | * 2-0 fan level (0..7 usually) | |
5801 | * 0x00 = stop | |
5802 | * 0x07 = max (set when temperatures critical) | |
5803 | * Some ThinkPads may have other levels, see | |
efa27145 | 5804 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
5805 | * |
5806 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
5807 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
5808 | * does so, its initial value is meaningless (0x07). | |
5809 | * | |
5810 | * For firmware bugs, refer to: | |
5811 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5812 | * | |
5813 | * ---- | |
5814 | * | |
5815 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
5816 | * Main fan tachometer reading (in RPM) | |
5817 | * | |
5818 | * This register is present on all ThinkPads with a new-style EC, and | |
5819 | * it is known not to be present on the A21m/e, and T22, as there is | |
5820 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
5821 | * ThinkPads from this same time period (and earlier) probably lack the | |
5822 | * tachometer as well. | |
5823 | * | |
5824 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
5825 | * was never fixed by IBM to report the EC firmware version string | |
5826 | * probably support the tachometer (like the early X models), so | |
5827 | * detecting it is quite hard. We need more data to know for sure. | |
5828 | * | |
5829 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
5830 | * might result. | |
5831 | * | |
f51d1a39 HMH |
5832 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
5833 | * mode. | |
56b6aeb0 HMH |
5834 | * |
5835 | * For firmware bugs, refer to: | |
5836 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5837 | * | |
efa27145 | 5838 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
5839 | * ThinkPad X31, X40, X41. Not available in the X60. |
5840 | * | |
5841 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
5842 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
5843 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
5844 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
5845 | * | |
5846 | * The speeds are stored on handles | |
5847 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
5848 | * | |
5849 | * There are three default speed sets, acessible as handles: | |
5850 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
5851 | * | |
5852 | * ACPI DSDT switches which set is in use depending on various | |
5853 | * factors. | |
5854 | * | |
efa27145 | 5855 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
5856 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
5857 | * but the ACPI tables just mention level 7. | |
5858 | */ | |
5859 | ||
f74a27d4 HMH |
5860 | enum { /* Fan control constants */ |
5861 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
5862 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
5863 | * 0x84 must be read before 0x85 */ | |
5864 | ||
5865 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
5866 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
5867 | ||
5868 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
5869 | }; | |
5870 | ||
5871 | enum fan_status_access_mode { | |
5872 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
5873 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
5874 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
5875 | }; | |
5876 | ||
5877 | enum fan_control_access_mode { | |
5878 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
5879 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
5880 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
5881 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
5882 | }; | |
5883 | ||
5884 | enum fan_control_commands { | |
5885 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
5886 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
5887 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
5888 | * and also watchdog cmd */ | |
5889 | }; | |
5890 | ||
5891 | static int fan_control_allowed; | |
5892 | ||
69ba91cb HMH |
5893 | static enum fan_status_access_mode fan_status_access_mode; |
5894 | static enum fan_control_access_mode fan_control_access_mode; | |
5895 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 5896 | |
778b4d74 | 5897 | static u8 fan_control_initial_status; |
fe98a52c | 5898 | static u8 fan_control_desired_level; |
0081b162 | 5899 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
5900 | static int fan_watchdog_maxinterval; |
5901 | ||
5902 | static struct mutex fan_mutex; | |
778b4d74 | 5903 | |
25c68a33 | 5904 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 5905 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 5906 | |
e0c7dfe7 HMH |
5907 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
5908 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
5909 | "\\FSPD", /* 600e/x, 770e, 770x */ |
5910 | ); /* all others */ | |
e0c7dfe7 | 5911 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
5912 | "JFNS", /* 770x-JL */ |
5913 | ); /* all others */ | |
5914 | ||
1c2ece75 HMH |
5915 | /* |
5916 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
5917 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
5918 | * be in auto mode (0x80). | |
5919 | * | |
5920 | * This is corrected by any write to HFSP either by the driver, or | |
5921 | * by the firmware. | |
5922 | * | |
5923 | * We assume 0x07 really means auto mode while this quirk is active, | |
5924 | * as this is far more likely than the ThinkPad being in level 7, | |
5925 | * which is only used by the firmware during thermal emergencies. | |
5926 | */ | |
5927 | ||
5928 | static void fan_quirk1_detect(void) | |
5929 | { | |
5930 | /* In some ThinkPads, neither the EC nor the ACPI | |
5931 | * DSDT initialize the HFSP register, and it ends up | |
5932 | * being initially set to 0x07 when it *could* be | |
5933 | * either 0x07 or 0x80. | |
5934 | * | |
5935 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5936 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5937 | * to be buggy. */ | |
5938 | if (fan_control_initial_status == 0x07) { | |
5939 | switch (thinkpad_id.ec_model) { | |
5940 | case 0x5931: /* TP-1Y */ | |
5941 | case 0x3837: /* TP-78 */ | |
5942 | case 0x3637: /* TP-76 */ | |
5943 | case 0x3037: /* TP-70 */ | |
5944 | printk(TPACPI_NOTICE | |
5945 | "fan_init: initial fan status is unknown, " | |
5946 | "assuming it is in auto mode\n"); | |
5947 | tp_features.fan_ctrl_status_undef = 1; | |
5948 | ;; | |
5949 | } | |
5950 | } | |
5951 | } | |
5952 | ||
5953 | static void fan_quirk1_handle(u8 *fan_status) | |
5954 | { | |
5955 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5956 | if (*fan_status != fan_control_initial_status) { | |
5957 | /* something changed the HFSP regisnter since | |
5958 | * driver init time, so it is not undefined | |
5959 | * anymore */ | |
5960 | tp_features.fan_ctrl_status_undef = 0; | |
5961 | } else { | |
5962 | /* Return most likely status. In fact, it | |
5963 | * might be the only possible status */ | |
5964 | *fan_status = TP_EC_FAN_AUTO; | |
5965 | } | |
5966 | } | |
5967 | } | |
5968 | ||
fe98a52c | 5969 | /* |
b21a15f6 | 5970 | * Call with fan_mutex held |
fe98a52c | 5971 | */ |
b21a15f6 | 5972 | static void fan_update_desired_level(u8 status) |
fe98a52c | 5973 | { |
b21a15f6 HMH |
5974 | if ((status & |
5975 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5976 | if (status > 7) | |
5977 | fan_control_desired_level = 7; | |
5978 | else | |
5979 | fan_control_desired_level = status; | |
5980 | } | |
5981 | } | |
fe98a52c | 5982 | |
b21a15f6 HMH |
5983 | static int fan_get_status(u8 *status) |
5984 | { | |
5985 | u8 s; | |
fe98a52c | 5986 | |
b21a15f6 HMH |
5987 | /* TODO: |
5988 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 5989 | |
b21a15f6 HMH |
5990 | switch (fan_status_access_mode) { |
5991 | case TPACPI_FAN_RD_ACPI_GFAN: | |
5992 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 5993 | |
b21a15f6 HMH |
5994 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
5995 | return -EIO; | |
fe98a52c | 5996 | |
b21a15f6 HMH |
5997 | if (likely(status)) |
5998 | *status = s & 0x07; | |
fe98a52c | 5999 | |
b21a15f6 HMH |
6000 | break; |
6001 | ||
6002 | case TPACPI_FAN_RD_TPEC: | |
6003 | /* all except 570, 600e/x, 770e, 770x */ | |
6004 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
6005 | return -EIO; | |
6006 | ||
1c2ece75 | 6007 | if (likely(status)) { |
b21a15f6 | 6008 | *status = s; |
1c2ece75 HMH |
6009 | fan_quirk1_handle(status); |
6010 | } | |
fe98a52c | 6011 | |
fe98a52c | 6012 | break; |
b21a15f6 | 6013 | |
fe98a52c | 6014 | default: |
b21a15f6 | 6015 | return -ENXIO; |
fe98a52c HMH |
6016 | } |
6017 | ||
b21a15f6 HMH |
6018 | return 0; |
6019 | } | |
fe98a52c | 6020 | |
b21a15f6 HMH |
6021 | static int fan_get_status_safe(u8 *status) |
6022 | { | |
6023 | int rc; | |
6024 | u8 s; | |
fe98a52c | 6025 | |
7646ea88 | 6026 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
6027 | return -ERESTARTSYS; |
6028 | rc = fan_get_status(&s); | |
6029 | if (!rc) | |
6030 | fan_update_desired_level(s); | |
6031 | mutex_unlock(&fan_mutex); | |
fe98a52c | 6032 | |
b21a15f6 HMH |
6033 | if (status) |
6034 | *status = s; | |
fe98a52c | 6035 | |
b21a15f6 HMH |
6036 | return rc; |
6037 | } | |
6038 | ||
6039 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 6040 | { |
b21a15f6 | 6041 | u8 hi, lo; |
fe98a52c | 6042 | |
b21a15f6 HMH |
6043 | switch (fan_status_access_mode) { |
6044 | case TPACPI_FAN_RD_TPEC: | |
6045 | /* all except 570, 600e/x, 770e, 770x */ | |
6046 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
6047 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
6048 | return -EIO; | |
fe98a52c | 6049 | |
b21a15f6 HMH |
6050 | if (likely(speed)) |
6051 | *speed = (hi << 8) | lo; | |
fe98a52c | 6052 | |
b21a15f6 | 6053 | break; |
fe98a52c | 6054 | |
b21a15f6 HMH |
6055 | default: |
6056 | return -ENXIO; | |
6057 | } | |
fe98a52c | 6058 | |
b21a15f6 | 6059 | return 0; |
fe98a52c HMH |
6060 | } |
6061 | ||
b21a15f6 | 6062 | static int fan_set_level(int level) |
fe98a52c | 6063 | { |
b21a15f6 HMH |
6064 | if (!fan_control_allowed) |
6065 | return -EPERM; | |
fe98a52c | 6066 | |
b21a15f6 HMH |
6067 | switch (fan_control_access_mode) { |
6068 | case TPACPI_FAN_WR_ACPI_SFAN: | |
6069 | if (level >= 0 && level <= 7) { | |
6070 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
6071 | return -EIO; | |
6072 | } else | |
6073 | return -EINVAL; | |
6074 | break; | |
fe98a52c | 6075 | |
b21a15f6 HMH |
6076 | case TPACPI_FAN_WR_ACPI_FANS: |
6077 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
6078 | if (!(level & TP_EC_FAN_AUTO) && |
6079 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
6080 | ((level < 0) || (level > 7))) |
6081 | return -EINVAL; | |
fe98a52c | 6082 | |
b21a15f6 HMH |
6083 | /* safety net should the EC not support AUTO |
6084 | * or FULLSPEED mode bits and just ignore them */ | |
6085 | if (level & TP_EC_FAN_FULLSPEED) | |
6086 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 6087 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 6088 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 6089 | |
b21a15f6 HMH |
6090 | if (!acpi_ec_write(fan_status_offset, level)) |
6091 | return -EIO; | |
6092 | else | |
6093 | tp_features.fan_ctrl_status_undef = 0; | |
6094 | break; | |
fe98a52c | 6095 | |
b21a15f6 HMH |
6096 | default: |
6097 | return -ENXIO; | |
6098 | } | |
6099 | return 0; | |
fe98a52c HMH |
6100 | } |
6101 | ||
b21a15f6 | 6102 | static int fan_set_level_safe(int level) |
fe98a52c | 6103 | { |
b21a15f6 | 6104 | int rc; |
fe98a52c | 6105 | |
b21a15f6 HMH |
6106 | if (!fan_control_allowed) |
6107 | return -EPERM; | |
fe98a52c | 6108 | |
7646ea88 | 6109 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6110 | return -ERESTARTSYS; |
fe98a52c | 6111 | |
b21a15f6 HMH |
6112 | if (level == TPACPI_FAN_LAST_LEVEL) |
6113 | level = fan_control_desired_level; | |
fe98a52c | 6114 | |
b21a15f6 HMH |
6115 | rc = fan_set_level(level); |
6116 | if (!rc) | |
6117 | fan_update_desired_level(level); | |
6118 | ||
6119 | mutex_unlock(&fan_mutex); | |
6120 | return rc; | |
fe98a52c HMH |
6121 | } |
6122 | ||
b21a15f6 | 6123 | static int fan_set_enable(void) |
fe98a52c | 6124 | { |
b21a15f6 HMH |
6125 | u8 s; |
6126 | int rc; | |
fe98a52c | 6127 | |
ecf2a80a HMH |
6128 | if (!fan_control_allowed) |
6129 | return -EPERM; | |
6130 | ||
7646ea88 | 6131 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6132 | return -ERESTARTSYS; |
fe98a52c | 6133 | |
b21a15f6 HMH |
6134 | switch (fan_control_access_mode) { |
6135 | case TPACPI_FAN_WR_ACPI_FANS: | |
6136 | case TPACPI_FAN_WR_TPEC: | |
6137 | rc = fan_get_status(&s); | |
6138 | if (rc < 0) | |
6139 | break; | |
fe98a52c | 6140 | |
b21a15f6 HMH |
6141 | /* Don't go out of emergency fan mode */ |
6142 | if (s != 7) { | |
6143 | s &= 0x07; | |
6144 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
6145 | } | |
fe98a52c | 6146 | |
b21a15f6 HMH |
6147 | if (!acpi_ec_write(fan_status_offset, s)) |
6148 | rc = -EIO; | |
6149 | else { | |
6150 | tp_features.fan_ctrl_status_undef = 0; | |
6151 | rc = 0; | |
6152 | } | |
6153 | break; | |
fe98a52c | 6154 | |
b21a15f6 HMH |
6155 | case TPACPI_FAN_WR_ACPI_SFAN: |
6156 | rc = fan_get_status(&s); | |
6157 | if (rc < 0) | |
6158 | break; | |
fe98a52c | 6159 | |
b21a15f6 | 6160 | s &= 0x07; |
fe98a52c | 6161 | |
b21a15f6 HMH |
6162 | /* Set fan to at least level 4 */ |
6163 | s |= 4; | |
fe08bc4b | 6164 | |
b21a15f6 | 6165 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 6166 | rc = -EIO; |
b21a15f6 HMH |
6167 | else |
6168 | rc = 0; | |
6169 | break; | |
78f81cc4 | 6170 | |
b21a15f6 HMH |
6171 | default: |
6172 | rc = -ENXIO; | |
6173 | } | |
5fba344c | 6174 | |
b21a15f6 HMH |
6175 | mutex_unlock(&fan_mutex); |
6176 | return rc; | |
69ba91cb | 6177 | } |
78f81cc4 | 6178 | |
b21a15f6 | 6179 | static int fan_set_disable(void) |
78f81cc4 | 6180 | { |
b21a15f6 | 6181 | int rc; |
c52f0aa5 | 6182 | |
b21a15f6 HMH |
6183 | if (!fan_control_allowed) |
6184 | return -EPERM; | |
78f81cc4 | 6185 | |
7646ea88 | 6186 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6187 | return -ERESTARTSYS; |
3ef8a609 | 6188 | |
b21a15f6 HMH |
6189 | rc = 0; |
6190 | switch (fan_control_access_mode) { | |
6191 | case TPACPI_FAN_WR_ACPI_FANS: | |
6192 | case TPACPI_FAN_WR_TPEC: | |
6193 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
6194 | rc = -EIO; | |
6195 | else { | |
6196 | fan_control_desired_level = 0; | |
6197 | tp_features.fan_ctrl_status_undef = 0; | |
6198 | } | |
3ef8a609 HMH |
6199 | break; |
6200 | ||
b21a15f6 HMH |
6201 | case TPACPI_FAN_WR_ACPI_SFAN: |
6202 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
6203 | rc = -EIO; | |
6204 | else | |
6205 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
6206 | break; |
6207 | ||
6208 | default: | |
b21a15f6 | 6209 | rc = -ENXIO; |
78f81cc4 BD |
6210 | } |
6211 | ||
fe98a52c | 6212 | |
fe98a52c | 6213 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
6214 | return rc; |
6215 | } | |
6216 | ||
b21a15f6 | 6217 | static int fan_set_speed(int speed) |
c52f0aa5 | 6218 | { |
b21a15f6 | 6219 | int rc; |
c52f0aa5 | 6220 | |
b21a15f6 HMH |
6221 | if (!fan_control_allowed) |
6222 | return -EPERM; | |
3ef8a609 | 6223 | |
7646ea88 | 6224 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6225 | return -ERESTARTSYS; |
c52f0aa5 | 6226 | |
b21a15f6 HMH |
6227 | rc = 0; |
6228 | switch (fan_control_access_mode) { | |
6229 | case TPACPI_FAN_WR_ACPI_FANS: | |
6230 | if (speed >= 0 && speed <= 65535) { | |
6231 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
6232 | speed, speed, speed)) | |
6233 | rc = -EIO; | |
6234 | } else | |
6235 | rc = -EINVAL; | |
c52f0aa5 HMH |
6236 | break; |
6237 | ||
6238 | default: | |
b21a15f6 | 6239 | rc = -ENXIO; |
c52f0aa5 HMH |
6240 | } |
6241 | ||
b21a15f6 HMH |
6242 | mutex_unlock(&fan_mutex); |
6243 | return rc; | |
16663a87 HMH |
6244 | } |
6245 | ||
6246 | static void fan_watchdog_reset(void) | |
6247 | { | |
94954cc6 | 6248 | static int fan_watchdog_active; |
16663a87 | 6249 | |
4985cd0a HMH |
6250 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
6251 | return; | |
6252 | ||
16663a87 HMH |
6253 | if (fan_watchdog_active) |
6254 | cancel_delayed_work(&fan_watchdog_task); | |
6255 | ||
8fef502e HMH |
6256 | if (fan_watchdog_maxinterval > 0 && |
6257 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 6258 | fan_watchdog_active = 1; |
e0e3c061 | 6259 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
6260 | msecs_to_jiffies(fan_watchdog_maxinterval |
6261 | * 1000))) { | |
35ff8b9f | 6262 | printk(TPACPI_ERR |
e0e3c061 | 6263 | "failed to queue the fan watchdog, " |
16663a87 HMH |
6264 | "watchdog will not trigger\n"); |
6265 | } | |
6266 | } else | |
6267 | fan_watchdog_active = 0; | |
6268 | } | |
6269 | ||
b21a15f6 | 6270 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 6271 | { |
b21a15f6 | 6272 | int rc; |
18ad7996 | 6273 | |
b21a15f6 HMH |
6274 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
6275 | return; | |
a12095c2 | 6276 | |
e0c7dfe7 | 6277 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
6278 | rc = fan_set_enable(); |
6279 | if (rc < 0) { | |
e0c7dfe7 | 6280 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
6281 | "will try again later...\n", -rc); |
6282 | /* reschedule for later */ | |
6283 | fan_watchdog_reset(); | |
6284 | } | |
6285 | } | |
eaa7571b | 6286 | |
b21a15f6 HMH |
6287 | /* |
6288 | * SYSFS fan layout: hwmon compatible (device) | |
6289 | * | |
6290 | * pwm*_enable: | |
6291 | * 0: "disengaged" mode | |
6292 | * 1: manual mode | |
6293 | * 2: native EC "auto" mode (recommended, hardware default) | |
6294 | * | |
6295 | * pwm*: set speed in manual mode, ignored otherwise. | |
6296 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
6297 | * interpolation. | |
6298 | * | |
6299 | * fan*_input: tachometer reading, RPM | |
6300 | * | |
6301 | * | |
6302 | * SYSFS fan layout: extensions | |
6303 | * | |
6304 | * fan_watchdog (driver): | |
6305 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
6306 | */ | |
6307 | ||
6308 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
6309 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
6310 | struct device_attribute *attr, | |
6311 | char *buf) | |
6312 | { | |
6313 | int res, mode; | |
6314 | u8 status; | |
6315 | ||
6316 | res = fan_get_status_safe(&status); | |
6317 | if (res) | |
6318 | return res; | |
6319 | ||
b21a15f6 HMH |
6320 | if (status & TP_EC_FAN_FULLSPEED) { |
6321 | mode = 0; | |
6322 | } else if (status & TP_EC_FAN_AUTO) { | |
6323 | mode = 2; | |
6324 | } else | |
6325 | mode = 1; | |
6326 | ||
6327 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
6328 | } | |
a12095c2 | 6329 | |
b21a15f6 HMH |
6330 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
6331 | struct device_attribute *attr, | |
6332 | const char *buf, size_t count) | |
6333 | { | |
6334 | unsigned long t; | |
6335 | int res, level; | |
6336 | ||
6337 | if (parse_strtoul(buf, 2, &t)) | |
6338 | return -EINVAL; | |
6339 | ||
6340 | switch (t) { | |
6341 | case 0: | |
6342 | level = TP_EC_FAN_FULLSPEED; | |
6343 | break; | |
6344 | case 1: | |
6345 | level = TPACPI_FAN_LAST_LEVEL; | |
6346 | break; | |
6347 | case 2: | |
6348 | level = TP_EC_FAN_AUTO; | |
6349 | break; | |
6350 | case 3: | |
6351 | /* reserved for software-controlled auto mode */ | |
6352 | return -ENOSYS; | |
18ad7996 | 6353 | default: |
b21a15f6 | 6354 | return -EINVAL; |
18ad7996 | 6355 | } |
b21a15f6 HMH |
6356 | |
6357 | res = fan_set_level_safe(level); | |
6358 | if (res == -ENXIO) | |
6359 | return -EINVAL; | |
6360 | else if (res < 0) | |
6361 | return res; | |
6362 | ||
6363 | fan_watchdog_reset(); | |
6364 | ||
6365 | return count; | |
18ad7996 HMH |
6366 | } |
6367 | ||
b21a15f6 HMH |
6368 | static struct device_attribute dev_attr_fan_pwm1_enable = |
6369 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
6370 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
6371 | ||
6372 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
6373 | static ssize_t fan_pwm1_show(struct device *dev, | |
6374 | struct device_attribute *attr, | |
6375 | char *buf) | |
fe98a52c | 6376 | { |
b21a15f6 HMH |
6377 | int res; |
6378 | u8 status; | |
fe98a52c | 6379 | |
b21a15f6 HMH |
6380 | res = fan_get_status_safe(&status); |
6381 | if (res) | |
6382 | return res; | |
ecf2a80a | 6383 | |
b21a15f6 HMH |
6384 | if ((status & |
6385 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
6386 | status = fan_control_desired_level; | |
fe98a52c | 6387 | |
b21a15f6 HMH |
6388 | if (status > 7) |
6389 | status = 7; | |
fe98a52c | 6390 | |
b21a15f6 | 6391 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
6392 | } |
6393 | ||
b21a15f6 HMH |
6394 | static ssize_t fan_pwm1_store(struct device *dev, |
6395 | struct device_attribute *attr, | |
6396 | const char *buf, size_t count) | |
18ad7996 | 6397 | { |
b21a15f6 | 6398 | unsigned long s; |
1c6a334e | 6399 | int rc; |
b21a15f6 | 6400 | u8 status, newlevel; |
1c6a334e | 6401 | |
b21a15f6 HMH |
6402 | if (parse_strtoul(buf, 255, &s)) |
6403 | return -EINVAL; | |
6404 | ||
6405 | /* scale down from 0-255 to 0-7 */ | |
6406 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 6407 | |
7646ea88 | 6408 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 6409 | return -ERESTARTSYS; |
40ca9fdf | 6410 | |
b21a15f6 HMH |
6411 | rc = fan_get_status(&status); |
6412 | if (!rc && (status & | |
6413 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
6414 | rc = fan_set_level(newlevel); | |
6415 | if (rc == -ENXIO) | |
6416 | rc = -EINVAL; | |
6417 | else if (!rc) { | |
6418 | fan_update_desired_level(newlevel); | |
6419 | fan_watchdog_reset(); | |
eaa7571b | 6420 | } |
b21a15f6 | 6421 | } |
1c6a334e | 6422 | |
b21a15f6 HMH |
6423 | mutex_unlock(&fan_mutex); |
6424 | return (rc)? rc : count; | |
6425 | } | |
1c6a334e | 6426 | |
b21a15f6 HMH |
6427 | static struct device_attribute dev_attr_fan_pwm1 = |
6428 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
6429 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 6430 | |
b21a15f6 HMH |
6431 | /* sysfs fan fan1_input ------------------------------------------------ */ |
6432 | static ssize_t fan_fan1_input_show(struct device *dev, | |
6433 | struct device_attribute *attr, | |
6434 | char *buf) | |
6435 | { | |
6436 | int res; | |
6437 | unsigned int speed; | |
1c6a334e | 6438 | |
b21a15f6 HMH |
6439 | res = fan_get_speed(&speed); |
6440 | if (res < 0) | |
6441 | return res; | |
1c6a334e | 6442 | |
b21a15f6 HMH |
6443 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
6444 | } | |
18ad7996 | 6445 | |
b21a15f6 HMH |
6446 | static struct device_attribute dev_attr_fan_fan1_input = |
6447 | __ATTR(fan1_input, S_IRUGO, | |
6448 | fan_fan1_input_show, NULL); | |
40ca9fdf | 6449 | |
b21a15f6 HMH |
6450 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
6451 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
6452 | char *buf) | |
6453 | { | |
6454 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
6455 | } |
6456 | ||
b21a15f6 HMH |
6457 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
6458 | const char *buf, size_t count) | |
18ad7996 | 6459 | { |
b21a15f6 HMH |
6460 | unsigned long t; |
6461 | ||
6462 | if (parse_strtoul(buf, 120, &t)) | |
6463 | return -EINVAL; | |
40ca9fdf | 6464 | |
ecf2a80a HMH |
6465 | if (!fan_control_allowed) |
6466 | return -EPERM; | |
6467 | ||
b21a15f6 HMH |
6468 | fan_watchdog_maxinterval = t; |
6469 | fan_watchdog_reset(); | |
40ca9fdf | 6470 | |
b21a15f6 HMH |
6471 | return count; |
6472 | } | |
6473 | ||
6474 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
6475 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
6476 | ||
6477 | /* --------------------------------------------------------------------- */ | |
6478 | static struct attribute *fan_attributes[] = { | |
6479 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
6480 | &dev_attr_fan_fan1_input.attr, | |
6481 | NULL | |
6482 | }; | |
6483 | ||
6484 | static const struct attribute_group fan_attr_group = { | |
6485 | .attrs = fan_attributes, | |
6486 | }; | |
6487 | ||
6488 | static int __init fan_init(struct ibm_init_struct *iibm) | |
6489 | { | |
6490 | int rc; | |
6491 | ||
6492 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
6493 | ||
6494 | mutex_init(&fan_mutex); | |
6495 | fan_status_access_mode = TPACPI_FAN_NONE; | |
6496 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6497 | fan_control_commands = 0; | |
6498 | fan_watchdog_maxinterval = 0; | |
6499 | tp_features.fan_ctrl_status_undef = 0; | |
6500 | fan_control_desired_level = 7; | |
6501 | ||
e0c7dfe7 HMH |
6502 | TPACPI_ACPIHANDLE_INIT(fans); |
6503 | TPACPI_ACPIHANDLE_INIT(gfan); | |
6504 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
6505 | |
6506 | if (gfan_handle) { | |
6507 | /* 570, 600e/x, 770e, 770x */ | |
6508 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
6509 | } else { | |
6510 | /* all other ThinkPads: note that even old-style | |
6511 | * ThinkPad ECs supports the fan control register */ | |
6512 | if (likely(acpi_ec_read(fan_status_offset, | |
6513 | &fan_control_initial_status))) { | |
6514 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
1c2ece75 | 6515 | fan_quirk1_detect(); |
b21a15f6 | 6516 | } else { |
e0c7dfe7 | 6517 | printk(TPACPI_ERR |
b21a15f6 HMH |
6518 | "ThinkPad ACPI EC access misbehaving, " |
6519 | "fan status and control unavailable\n"); | |
6520 | return 1; | |
6521 | } | |
6522 | } | |
6523 | ||
6524 | if (sfan_handle) { | |
6525 | /* 570, 770x-JL */ | |
6526 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
6527 | fan_control_commands |= | |
6528 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
6529 | } else { | |
6530 | if (!gfan_handle) { | |
6531 | /* gfan without sfan means no fan control */ | |
6532 | /* all other models implement TP EC 0x2f control */ | |
6533 | ||
6534 | if (fans_handle) { | |
6535 | /* X31, X40, X41 */ | |
6536 | fan_control_access_mode = | |
6537 | TPACPI_FAN_WR_ACPI_FANS; | |
6538 | fan_control_commands |= | |
6539 | TPACPI_FAN_CMD_SPEED | | |
6540 | TPACPI_FAN_CMD_LEVEL | | |
6541 | TPACPI_FAN_CMD_ENABLE; | |
6542 | } else { | |
6543 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
6544 | fan_control_commands |= | |
6545 | TPACPI_FAN_CMD_LEVEL | | |
6546 | TPACPI_FAN_CMD_ENABLE; | |
6547 | } | |
fe98a52c | 6548 | } |
b21a15f6 | 6549 | } |
18ad7996 | 6550 | |
b21a15f6 HMH |
6551 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
6552 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
6553 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
6554 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 6555 | |
b21a15f6 HMH |
6556 | /* fan control master switch */ |
6557 | if (!fan_control_allowed) { | |
6558 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6559 | fan_control_commands = 0; | |
6560 | dbg_printk(TPACPI_DBG_INIT, | |
6561 | "fan control features disabled by parameter\n"); | |
18ad7996 | 6562 | } |
40ca9fdf | 6563 | |
b21a15f6 HMH |
6564 | /* update fan_control_desired_level */ |
6565 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
6566 | fan_get_status_safe(NULL); | |
fe98a52c | 6567 | |
b21a15f6 HMH |
6568 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
6569 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
6570 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
6571 | &fan_attr_group); | |
b21a15f6 HMH |
6572 | if (rc < 0) |
6573 | return rc; | |
9c0a76e1 HMH |
6574 | |
6575 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
6576 | &driver_attr_fan_watchdog); | |
6577 | if (rc < 0) { | |
6578 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
6579 | &fan_attr_group); | |
6580 | return rc; | |
6581 | } | |
b21a15f6 HMH |
6582 | return 0; |
6583 | } else | |
6584 | return 1; | |
56b6aeb0 HMH |
6585 | } |
6586 | ||
b21a15f6 | 6587 | static void fan_exit(void) |
56b6aeb0 | 6588 | { |
35ff8b9f HMH |
6589 | vdbg_printk(TPACPI_DBG_EXIT, |
6590 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 6591 | |
b21a15f6 HMH |
6592 | /* FIXME: can we really do this unconditionally? */ |
6593 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
6594 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
6595 | &driver_attr_fan_watchdog); | |
40ca9fdf | 6596 | |
b21a15f6 | 6597 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 6598 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
6599 | } |
6600 | ||
75700e53 HMH |
6601 | static void fan_suspend(pm_message_t state) |
6602 | { | |
0081b162 HMH |
6603 | int rc; |
6604 | ||
75700e53 HMH |
6605 | if (!fan_control_allowed) |
6606 | return; | |
6607 | ||
6608 | /* Store fan status in cache */ | |
0081b162 HMH |
6609 | fan_control_resume_level = 0; |
6610 | rc = fan_get_status_safe(&fan_control_resume_level); | |
6611 | if (rc < 0) | |
6612 | printk(TPACPI_NOTICE | |
6613 | "failed to read fan level for later " | |
6614 | "restore during resume: %d\n", rc); | |
6615 | ||
6616 | /* if it is undefined, don't attempt to restore it. | |
6617 | * KEEP THIS LAST */ | |
75700e53 | 6618 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 6619 | fan_control_resume_level = 0; |
75700e53 HMH |
6620 | } |
6621 | ||
6622 | static void fan_resume(void) | |
6623 | { | |
75700e53 HMH |
6624 | u8 current_level = 7; |
6625 | bool do_set = false; | |
0081b162 | 6626 | int rc; |
75700e53 HMH |
6627 | |
6628 | /* DSDT *always* updates status on resume */ | |
6629 | tp_features.fan_ctrl_status_undef = 0; | |
6630 | ||
75700e53 | 6631 | if (!fan_control_allowed || |
0081b162 | 6632 | !fan_control_resume_level || |
75700e53 HMH |
6633 | (fan_get_status_safe(¤t_level) < 0)) |
6634 | return; | |
6635 | ||
6636 | switch (fan_control_access_mode) { | |
6637 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
6638 | /* never decrease fan level */ |
6639 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
6640 | break; |
6641 | case TPACPI_FAN_WR_ACPI_FANS: | |
6642 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
6643 | /* never decrease fan level, scale is: |
6644 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
6645 | * | |
6646 | * We expect the firmware to set either 7 or AUTO, but we | |
6647 | * handle FULLSPEED out of paranoia. | |
6648 | * | |
6649 | * So, we can safely only restore FULLSPEED or 7, anything | |
6650 | * else could slow the fan. Restoring AUTO is useless, at | |
6651 | * best that's exactly what the DSDT already set (it is the | |
6652 | * slower it uses). | |
6653 | * | |
6654 | * Always keep in mind that the DSDT *will* have set the | |
6655 | * fans to what the vendor supposes is the best level. We | |
6656 | * muck with it only to speed the fan up. | |
6657 | */ | |
6658 | if (fan_control_resume_level != 7 && | |
6659 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
6660 | return; | |
6661 | else | |
6662 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
6663 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
6664 | break; |
6665 | default: | |
6666 | return; | |
6667 | } | |
6668 | if (do_set) { | |
6669 | printk(TPACPI_NOTICE | |
6670 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
6671 | fan_control_resume_level); |
6672 | rc = fan_set_level_safe(fan_control_resume_level); | |
6673 | if (rc < 0) | |
6674 | printk(TPACPI_NOTICE | |
6675 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
6676 | } |
6677 | } | |
6678 | ||
56b6aeb0 HMH |
6679 | static int fan_read(char *p) |
6680 | { | |
6681 | int len = 0; | |
6682 | int rc; | |
6683 | u8 status; | |
6684 | unsigned int speed = 0; | |
6685 | ||
6686 | switch (fan_status_access_mode) { | |
efa27145 | 6687 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 6688 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6689 | rc = fan_get_status_safe(&status); |
6690 | if (rc < 0) | |
56b6aeb0 HMH |
6691 | return rc; |
6692 | ||
6693 | len += sprintf(p + len, "status:\t\t%s\n" | |
6694 | "level:\t\t%d\n", | |
6695 | (status != 0) ? "enabled" : "disabled", status); | |
6696 | break; | |
6697 | ||
efa27145 | 6698 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 6699 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6700 | rc = fan_get_status_safe(&status); |
6701 | if (rc < 0) | |
56b6aeb0 HMH |
6702 | return rc; |
6703 | ||
56b6aeb0 HMH |
6704 | len += sprintf(p + len, "status:\t\t%s\n", |
6705 | (status != 0) ? "enabled" : "disabled"); | |
6706 | ||
35ff8b9f HMH |
6707 | rc = fan_get_speed(&speed); |
6708 | if (rc < 0) | |
56b6aeb0 HMH |
6709 | return rc; |
6710 | ||
6711 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
6712 | ||
efa27145 | 6713 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
6714 | /* Disengaged mode takes precedence */ |
6715 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 6716 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
6717 | len += sprintf(p + len, "level:\t\tauto\n"); |
6718 | else | |
6719 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
6720 | break; | |
6721 | ||
efa27145 | 6722 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
6723 | default: |
6724 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
6725 | } | |
6726 | ||
efa27145 | 6727 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
6728 | len += sprintf(p + len, "commands:\tlevel <level>"); |
6729 | ||
6730 | switch (fan_control_access_mode) { | |
efa27145 | 6731 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
6732 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
6733 | break; | |
6734 | ||
6735 | default: | |
6736 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 6737 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
6738 | break; |
6739 | } | |
6740 | } | |
18ad7996 | 6741 | |
efa27145 | 6742 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 6743 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
6744 | "commands:\twatchdog <timeout> (<timeout> " |
6745 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 6746 | |
efa27145 | 6747 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
6748 | len += sprintf(p + len, "commands:\tspeed <speed>" |
6749 | " (<speed> is 0-65535)\n"); | |
6750 | ||
6751 | return len; | |
78f81cc4 BD |
6752 | } |
6753 | ||
18ad7996 HMH |
6754 | static int fan_write_cmd_level(const char *cmd, int *rc) |
6755 | { | |
6756 | int level; | |
6757 | ||
a12095c2 | 6758 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 6759 | level = TP_EC_FAN_AUTO; |
fe98a52c | 6760 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 6761 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 6762 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 6763 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
6764 | return 0; |
6765 | ||
35ff8b9f HMH |
6766 | *rc = fan_set_level_safe(level); |
6767 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6768 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
6769 | "access mode %d", fan_control_access_mode); |
6770 | ||
6771 | return 1; | |
6772 | } | |
6773 | ||
6774 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
6775 | { | |
6776 | if (strlencmp(cmd, "enable") != 0) | |
6777 | return 0; | |
6778 | ||
35ff8b9f HMH |
6779 | *rc = fan_set_enable(); |
6780 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6781 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
6782 | "access mode %d", fan_control_access_mode); |
6783 | ||
6784 | return 1; | |
6785 | } | |
6786 | ||
6787 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
6788 | { | |
6789 | if (strlencmp(cmd, "disable") != 0) | |
6790 | return 0; | |
6791 | ||
35ff8b9f HMH |
6792 | *rc = fan_set_disable(); |
6793 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6794 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
6795 | "access mode %d", fan_control_access_mode); |
6796 | ||
6797 | return 1; | |
6798 | } | |
6799 | ||
6800 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
6801 | { | |
6802 | int speed; | |
6803 | ||
a8b7a662 HMH |
6804 | /* TODO: |
6805 | * Support speed <low> <medium> <high> ? */ | |
6806 | ||
18ad7996 HMH |
6807 | if (sscanf(cmd, "speed %d", &speed) != 1) |
6808 | return 0; | |
6809 | ||
35ff8b9f HMH |
6810 | *rc = fan_set_speed(speed); |
6811 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6812 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
6813 | "access mode %d", fan_control_access_mode); |
6814 | ||
6815 | return 1; | |
6816 | } | |
6817 | ||
16663a87 HMH |
6818 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
6819 | { | |
6820 | int interval; | |
6821 | ||
6822 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
6823 | return 0; | |
6824 | ||
6825 | if (interval < 0 || interval > 120) | |
6826 | *rc = -EINVAL; | |
6827 | else | |
6828 | fan_watchdog_maxinterval = interval; | |
6829 | ||
6830 | return 1; | |
6831 | } | |
6832 | ||
18ad7996 HMH |
6833 | static int fan_write(char *buf) |
6834 | { | |
6835 | char *cmd; | |
6836 | int rc = 0; | |
6837 | ||
6838 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 6839 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 6840 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 6841 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 6842 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
6843 | fan_write_cmd_disable(cmd, &rc) || |
6844 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 6845 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
6846 | fan_write_cmd_speed(cmd, &rc)) |
6847 | ) | |
6848 | rc = -EINVAL; | |
16663a87 HMH |
6849 | else if (!rc) |
6850 | fan_watchdog_reset(); | |
18ad7996 HMH |
6851 | } |
6852 | ||
6853 | return rc; | |
6854 | } | |
6855 | ||
a5763f22 HMH |
6856 | static struct ibm_struct fan_driver_data = { |
6857 | .name = "fan", | |
6858 | .read = fan_read, | |
6859 | .write = fan_write, | |
6860 | .exit = fan_exit, | |
75700e53 HMH |
6861 | .suspend = fan_suspend, |
6862 | .resume = fan_resume, | |
a5763f22 HMH |
6863 | }; |
6864 | ||
56b6aeb0 HMH |
6865 | /**************************************************************************** |
6866 | **************************************************************************** | |
6867 | * | |
6868 | * Infrastructure | |
6869 | * | |
6870 | **************************************************************************** | |
6871 | ****************************************************************************/ | |
6872 | ||
7fd40029 HMH |
6873 | /* sysfs name ---------------------------------------------------------- */ |
6874 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
6875 | struct device_attribute *attr, | |
6876 | char *buf) | |
6877 | { | |
e0c7dfe7 | 6878 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
6879 | } |
6880 | ||
6881 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
6882 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
6883 | ||
6884 | /* --------------------------------------------------------------------- */ | |
6885 | ||
56b6aeb0 | 6886 | /* /proc support */ |
94954cc6 | 6887 | static struct proc_dir_entry *proc_dir; |
16663a87 | 6888 | |
56b6aeb0 HMH |
6889 | /* |
6890 | * Module and infrastructure proble, init and exit handling | |
6891 | */ | |
1da177e4 | 6892 | |
b21a15f6 HMH |
6893 | static int force_load; |
6894 | ||
fe08bc4b | 6895 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 6896 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 6897 | { |
a5763f22 | 6898 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 6899 | |
a5763f22 | 6900 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
6901 | } |
6902 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
6903 | ||
b21a15f6 HMH |
6904 | static void ibm_exit(struct ibm_struct *ibm) |
6905 | { | |
6906 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
6907 | ||
6908 | list_del_init(&ibm->all_drivers); | |
6909 | ||
6910 | if (ibm->flags.acpi_notify_installed) { | |
6911 | dbg_printk(TPACPI_DBG_EXIT, | |
6912 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
6913 | BUG_ON(!ibm->acpi); | |
6914 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
6915 | ibm->acpi->type, | |
6916 | dispatch_acpi_notify); | |
6917 | ibm->flags.acpi_notify_installed = 0; | |
6918 | ibm->flags.acpi_notify_installed = 0; | |
6919 | } | |
6920 | ||
6921 | if (ibm->flags.proc_created) { | |
6922 | dbg_printk(TPACPI_DBG_EXIT, | |
6923 | "%s: remove_proc_entry\n", ibm->name); | |
6924 | remove_proc_entry(ibm->name, proc_dir); | |
6925 | ibm->flags.proc_created = 0; | |
6926 | } | |
6927 | ||
6928 | if (ibm->flags.acpi_driver_registered) { | |
6929 | dbg_printk(TPACPI_DBG_EXIT, | |
6930 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
6931 | BUG_ON(!ibm->acpi); | |
6932 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
6933 | kfree(ibm->acpi->driver); | |
6934 | ibm->acpi->driver = NULL; | |
6935 | ibm->flags.acpi_driver_registered = 0; | |
6936 | } | |
6937 | ||
6938 | if (ibm->flags.init_called && ibm->exit) { | |
6939 | ibm->exit(); | |
6940 | ibm->flags.init_called = 0; | |
6941 | } | |
6942 | ||
6943 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
6944 | } | |
f74a27d4 | 6945 | |
a5763f22 | 6946 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
6947 | { |
6948 | int ret; | |
a5763f22 | 6949 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
6950 | struct proc_dir_entry *entry; |
6951 | ||
a5763f22 HMH |
6952 | BUG_ON(ibm == NULL); |
6953 | ||
6954 | INIT_LIST_HEAD(&ibm->all_drivers); | |
6955 | ||
92641177 | 6956 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
6957 | return 0; |
6958 | ||
fe08bc4b HMH |
6959 | dbg_printk(TPACPI_DBG_INIT, |
6960 | "probing for %s\n", ibm->name); | |
6961 | ||
a5763f22 HMH |
6962 | if (iibm->init) { |
6963 | ret = iibm->init(iibm); | |
5fba344c HMH |
6964 | if (ret > 0) |
6965 | return 0; /* probe failed */ | |
6966 | if (ret) | |
1da177e4 | 6967 | return ret; |
a5763f22 | 6968 | |
92641177 | 6969 | ibm->flags.init_called = 1; |
1da177e4 LT |
6970 | } |
6971 | ||
8d376cd6 HMH |
6972 | if (ibm->acpi) { |
6973 | if (ibm->acpi->hid) { | |
6974 | ret = register_tpacpi_subdriver(ibm); | |
6975 | if (ret) | |
6976 | goto err_out; | |
6977 | } | |
5fba344c | 6978 | |
8d376cd6 HMH |
6979 | if (ibm->acpi->notify) { |
6980 | ret = setup_acpi_notify(ibm); | |
6981 | if (ret == -ENODEV) { | |
e0c7dfe7 | 6982 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
6983 | ibm->name); |
6984 | ret = 0; | |
6985 | goto err_out; | |
6986 | } | |
6987 | if (ret < 0) | |
6988 | goto err_out; | |
5fba344c | 6989 | } |
5fba344c HMH |
6990 | } |
6991 | ||
fe08bc4b HMH |
6992 | dbg_printk(TPACPI_DBG_INIT, |
6993 | "%s installed\n", ibm->name); | |
6994 | ||
78f81cc4 BD |
6995 | if (ibm->read) { |
6996 | entry = create_proc_entry(ibm->name, | |
6997 | S_IFREG | S_IRUGO | S_IWUSR, | |
6998 | proc_dir); | |
6999 | if (!entry) { | |
e0c7dfe7 | 7000 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 7001 | ibm->name); |
5fba344c HMH |
7002 | ret = -ENODEV; |
7003 | goto err_out; | |
78f81cc4 BD |
7004 | } |
7005 | entry->owner = THIS_MODULE; | |
7006 | entry->data = ibm; | |
8d376cd6 | 7007 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 7008 | if (ibm->write) |
8d376cd6 | 7009 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 7010 | ibm->flags.proc_created = 1; |
78f81cc4 | 7011 | } |
1da177e4 | 7012 | |
a5763f22 HMH |
7013 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
7014 | ||
1da177e4 | 7015 | return 0; |
5fba344c HMH |
7016 | |
7017 | err_out: | |
fe08bc4b HMH |
7018 | dbg_printk(TPACPI_DBG_INIT, |
7019 | "%s: at error exit path with result %d\n", | |
7020 | ibm->name, ret); | |
7021 | ||
5fba344c HMH |
7022 | ibm_exit(ibm); |
7023 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
7024 | } |
7025 | ||
56b6aeb0 HMH |
7026 | /* Probing */ |
7027 | ||
bf20e740 HMH |
7028 | /* returns 0 - probe ok, or < 0 - probe error. |
7029 | * Probe ok doesn't mean thinkpad found. | |
7030 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
7031 | static int __must_check __init get_thinkpad_model_data( | |
7032 | struct thinkpad_id_data *tp) | |
1da177e4 | 7033 | { |
1855256c | 7034 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 7035 | char ec_fw_string[18]; |
bf20e740 | 7036 | char const *s; |
1da177e4 | 7037 | |
d5a2f2f1 | 7038 | if (!tp) |
bf20e740 | 7039 | return -EINVAL; |
d5a2f2f1 HMH |
7040 | |
7041 | memset(tp, 0, sizeof(*tp)); | |
7042 | ||
7043 | if (dmi_name_in_vendors("IBM")) | |
7044 | tp->vendor = PCI_VENDOR_ID_IBM; | |
7045 | else if (dmi_name_in_vendors("LENOVO")) | |
7046 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
7047 | else | |
bf20e740 | 7048 | return 0; |
d5a2f2f1 | 7049 | |
bf20e740 HMH |
7050 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
7051 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
7052 | if (s && !tp->bios_version_str) | |
7053 | return -ENOMEM; | |
d5a2f2f1 | 7054 | if (!tp->bios_version_str) |
bf20e740 | 7055 | return 0; |
d5a2f2f1 HMH |
7056 | tp->bios_model = tp->bios_version_str[0] |
7057 | | (tp->bios_version_str[1] << 8); | |
7058 | ||
56b6aeb0 HMH |
7059 | /* |
7060 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
7061 | * X32 or newer, all Z series; Some models must have an | |
7062 | * up-to-date BIOS or they will not be detected. | |
7063 | * | |
7064 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
7065 | */ | |
7066 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
7067 | if (sscanf(dev->name, | |
7068 | "IBM ThinkPad Embedded Controller -[%17c", | |
7069 | ec_fw_string) == 1) { | |
7070 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
7071 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
7072 | |
7073 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
7074 | if (!tp->ec_version_str) |
7075 | return -ENOMEM; | |
d5a2f2f1 HMH |
7076 | tp->ec_model = ec_fw_string[0] |
7077 | | (ec_fw_string[1] << 8); | |
7078 | break; | |
78f81cc4 | 7079 | } |
1da177e4 | 7080 | } |
d5a2f2f1 | 7081 | |
bf20e740 HMH |
7082 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
7083 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
7084 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
7085 | if (!tp->model_str) | |
7086 | return -ENOMEM; | |
d5a2f2f1 | 7087 | } |
8c74adbc | 7088 | |
bf20e740 HMH |
7089 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
7090 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
7091 | if (s && !tp->nummodel_str) | |
7092 | return -ENOMEM; | |
7093 | ||
7094 | return 0; | |
1da177e4 LT |
7095 | } |
7096 | ||
5fba344c HMH |
7097 | static int __init probe_for_thinkpad(void) |
7098 | { | |
7099 | int is_thinkpad; | |
7100 | ||
7101 | if (acpi_disabled) | |
7102 | return -ENODEV; | |
7103 | ||
7104 | /* | |
7105 | * Non-ancient models have better DMI tagging, but very old models | |
7106 | * don't. | |
7107 | */ | |
d5a2f2f1 | 7108 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
7109 | |
7110 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 7111 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
7112 | if (!ec_handle) { |
7113 | if (is_thinkpad) | |
e0c7dfe7 | 7114 | printk(TPACPI_ERR |
5fba344c HMH |
7115 | "Not yet supported ThinkPad detected!\n"); |
7116 | return -ENODEV; | |
7117 | } | |
7118 | ||
0dcef77c HMH |
7119 | /* |
7120 | * Risks a regression on very old machines, but reduces potential | |
7121 | * false positives a damn great deal | |
7122 | */ | |
7123 | if (!is_thinkpad) | |
d5a2f2f1 | 7124 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
7125 | |
7126 | if (!is_thinkpad && !force_load) | |
7127 | return -ENODEV; | |
7128 | ||
5fba344c HMH |
7129 | return 0; |
7130 | } | |
7131 | ||
7132 | ||
56b6aeb0 | 7133 | /* Module init, exit, parameters */ |
1da177e4 | 7134 | |
a5763f22 HMH |
7135 | static struct ibm_init_struct ibms_init[] __initdata = { |
7136 | { | |
7137 | .init = thinkpad_acpi_driver_init, | |
7138 | .data = &thinkpad_acpi_driver_data, | |
7139 | }, | |
7140 | { | |
7141 | .init = hotkey_init, | |
7142 | .data = &hotkey_driver_data, | |
7143 | }, | |
7144 | { | |
7145 | .init = bluetooth_init, | |
7146 | .data = &bluetooth_driver_data, | |
7147 | }, | |
7148 | { | |
7149 | .init = wan_init, | |
7150 | .data = &wan_driver_data, | |
7151 | }, | |
0045c0aa HMH |
7152 | { |
7153 | .init = uwb_init, | |
7154 | .data = &uwb_driver_data, | |
7155 | }, | |
d7c1d17d | 7156 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
7157 | { |
7158 | .init = video_init, | |
7159 | .data = &video_driver_data, | |
7160 | }, | |
d7c1d17d | 7161 | #endif |
a5763f22 HMH |
7162 | { |
7163 | .init = light_init, | |
7164 | .data = &light_driver_data, | |
7165 | }, | |
7166 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
7167 | { | |
7168 | .init = dock_init, | |
7169 | .data = &dock_driver_data[0], | |
7170 | }, | |
7171 | { | |
d94a7f16 | 7172 | .init = dock_init2, |
a5763f22 HMH |
7173 | .data = &dock_driver_data[1], |
7174 | }, | |
7175 | #endif | |
7176 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
7177 | { | |
7178 | .init = bay_init, | |
7179 | .data = &bay_driver_data, | |
7180 | }, | |
7181 | #endif | |
7182 | { | |
7183 | .init = cmos_init, | |
7184 | .data = &cmos_driver_data, | |
7185 | }, | |
7186 | { | |
7187 | .init = led_init, | |
7188 | .data = &led_driver_data, | |
7189 | }, | |
7190 | { | |
7191 | .init = beep_init, | |
7192 | .data = &beep_driver_data, | |
7193 | }, | |
7194 | { | |
7195 | .init = thermal_init, | |
7196 | .data = &thermal_driver_data, | |
7197 | }, | |
7198 | { | |
7199 | .data = &ecdump_driver_data, | |
7200 | }, | |
7201 | { | |
7202 | .init = brightness_init, | |
7203 | .data = &brightness_driver_data, | |
7204 | }, | |
7205 | { | |
7206 | .data = &volume_driver_data, | |
7207 | }, | |
7208 | { | |
7209 | .init = fan_init, | |
7210 | .data = &fan_driver_data, | |
7211 | }, | |
7212 | }; | |
7213 | ||
3945ac36 | 7214 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
7215 | { |
7216 | unsigned int i; | |
a5763f22 | 7217 | struct ibm_struct *ibm; |
1da177e4 | 7218 | |
59f91ff1 HMH |
7219 | if (!kp || !kp->name || !val) |
7220 | return -EINVAL; | |
7221 | ||
a5763f22 HMH |
7222 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
7223 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
7224 | WARN_ON(ibm == NULL); |
7225 | ||
7226 | if (!ibm || !ibm->name) | |
7227 | continue; | |
a5763f22 HMH |
7228 | |
7229 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
7230 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 7231 | return -ENOSPC; |
a5763f22 HMH |
7232 | strcpy(ibms_init[i].param, val); |
7233 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
7234 | return 0; |
7235 | } | |
a5763f22 | 7236 | } |
1da177e4 | 7237 | |
1da177e4 LT |
7238 | return -EINVAL; |
7239 | } | |
7240 | ||
56b6aeb0 | 7241 | module_param(experimental, int, 0); |
f68080f8 | 7242 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 7243 | "Enables experimental features when non-zero"); |
56b6aeb0 | 7244 | |
132ce091 | 7245 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 7246 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 7247 | |
86cc9445 | 7248 | module_param(force_load, bool, 0); |
f68080f8 | 7249 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
7250 | "Attempts to load the driver even on a " |
7251 | "mis-identified ThinkPad when true"); | |
0dcef77c | 7252 | |
86cc9445 | 7253 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 7254 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 7255 | "Enables setting fan parameters features when true"); |
ecf2a80a | 7256 | |
24d3b774 | 7257 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 7258 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
7259 | "Selects brightness control strategy: " |
7260 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 7261 | |
87cc537a | 7262 | module_param(brightness_enable, uint, 0); |
f68080f8 | 7263 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 7264 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 7265 | |
ff80f137 | 7266 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 7267 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
7268 | "used for backwards compatibility with userspace, " |
7269 | "see documentation"); | |
ff80f137 | 7270 | |
e0c7dfe7 | 7271 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 7272 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 7273 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 7274 | "at module load, see documentation") |
1da177e4 | 7275 | |
e0c7dfe7 HMH |
7276 | TPACPI_PARAM(hotkey); |
7277 | TPACPI_PARAM(bluetooth); | |
7278 | TPACPI_PARAM(video); | |
7279 | TPACPI_PARAM(light); | |
85998248 | 7280 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 7281 | TPACPI_PARAM(dock); |
63e5f248 | 7282 | #endif |
85998248 | 7283 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 7284 | TPACPI_PARAM(bay); |
85998248 | 7285 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
7286 | TPACPI_PARAM(cmos); |
7287 | TPACPI_PARAM(led); | |
7288 | TPACPI_PARAM(beep); | |
7289 | TPACPI_PARAM(ecdump); | |
7290 | TPACPI_PARAM(brightness); | |
7291 | TPACPI_PARAM(volume); | |
7292 | TPACPI_PARAM(fan); | |
78f81cc4 | 7293 | |
a73f3091 HMH |
7294 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
7295 | module_param(dbg_wlswemul, uint, 0); | |
7296 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); | |
7297 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
7298 | MODULE_PARM_DESC(wlsw_state, | |
7299 | "Initial state of the emulated WLSW switch"); | |
7300 | ||
7301 | module_param(dbg_bluetoothemul, uint, 0); | |
7302 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); | |
7303 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
7304 | MODULE_PARM_DESC(bluetooth_state, | |
7305 | "Initial state of the emulated bluetooth switch"); | |
7306 | ||
7307 | module_param(dbg_wwanemul, uint, 0); | |
7308 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); | |
7309 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
7310 | MODULE_PARM_DESC(wwan_state, | |
7311 | "Initial state of the emulated WWAN switch"); | |
0045c0aa HMH |
7312 | |
7313 | module_param(dbg_uwbemul, uint, 0); | |
7314 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); | |
7315 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
7316 | MODULE_PARM_DESC(uwb_state, | |
7317 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
7318 | #endif |
7319 | ||
b21a15f6 HMH |
7320 | static void thinkpad_acpi_module_exit(void) |
7321 | { | |
7322 | struct ibm_struct *ibm, *itmp; | |
7323 | ||
7324 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
7325 | ||
7326 | list_for_each_entry_safe_reverse(ibm, itmp, | |
7327 | &tpacpi_all_drivers, | |
7328 | all_drivers) { | |
7329 | ibm_exit(ibm); | |
7330 | } | |
7331 | ||
7332 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
7333 | ||
7334 | if (tpacpi_inputdev) { | |
7335 | if (tp_features.input_device_registered) | |
7336 | input_unregister_device(tpacpi_inputdev); | |
7337 | else | |
7338 | input_free_device(tpacpi_inputdev); | |
7339 | } | |
7340 | ||
7341 | if (tpacpi_hwmon) | |
7342 | hwmon_device_unregister(tpacpi_hwmon); | |
7343 | ||
7344 | if (tp_features.sensors_pdev_attrs_registered) | |
7345 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
7346 | &dev_attr_thinkpad_acpi_pdev_name); | |
7347 | if (tpacpi_sensors_pdev) | |
7348 | platform_device_unregister(tpacpi_sensors_pdev); | |
7349 | if (tpacpi_pdev) | |
7350 | platform_device_unregister(tpacpi_pdev); | |
7351 | ||
7352 | if (tp_features.sensors_pdrv_attrs_registered) | |
7353 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
7354 | if (tp_features.platform_drv_attrs_registered) | |
7355 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
7356 | ||
7357 | if (tp_features.sensors_pdrv_registered) | |
7358 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
7359 | ||
7360 | if (tp_features.platform_drv_registered) | |
7361 | platform_driver_unregister(&tpacpi_pdriver); | |
7362 | ||
7363 | if (proc_dir) | |
e0c7dfe7 | 7364 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 7365 | |
e0e3c061 HMH |
7366 | if (tpacpi_wq) |
7367 | destroy_workqueue(tpacpi_wq); | |
7368 | ||
b21a15f6 HMH |
7369 | kfree(thinkpad_id.bios_version_str); |
7370 | kfree(thinkpad_id.ec_version_str); | |
7371 | kfree(thinkpad_id.model_str); | |
7372 | } | |
7373 | ||
f74a27d4 | 7374 | |
1def7115 | 7375 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
7376 | { |
7377 | int ret, i; | |
7378 | ||
8fef502e HMH |
7379 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
7380 | ||
ff80f137 HMH |
7381 | /* Parameter checking */ |
7382 | if (hotkey_report_mode > 2) | |
7383 | return -EINVAL; | |
7384 | ||
54ae1501 | 7385 | /* Driver-level probe */ |
d5a2f2f1 | 7386 | |
bf20e740 HMH |
7387 | ret = get_thinkpad_model_data(&thinkpad_id); |
7388 | if (ret) { | |
7389 | printk(TPACPI_ERR | |
7390 | "unable to get DMI data: %d\n", ret); | |
7391 | thinkpad_acpi_module_exit(); | |
7392 | return ret; | |
7393 | } | |
5fba344c | 7394 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
7395 | if (ret) { |
7396 | thinkpad_acpi_module_exit(); | |
5fba344c | 7397 | return ret; |
d5a2f2f1 | 7398 | } |
1da177e4 | 7399 | |
54ae1501 | 7400 | /* Driver initialization */ |
d5a2f2f1 | 7401 | |
e0c7dfe7 HMH |
7402 | TPACPI_ACPIHANDLE_INIT(ecrd); |
7403 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 7404 | |
e0e3c061 HMH |
7405 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
7406 | if (!tpacpi_wq) { | |
7407 | thinkpad_acpi_module_exit(); | |
7408 | return -ENOMEM; | |
7409 | } | |
7410 | ||
e0c7dfe7 | 7411 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 7412 | if (!proc_dir) { |
35ff8b9f HMH |
7413 | printk(TPACPI_ERR |
7414 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 7415 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7416 | return -ENODEV; |
7417 | } | |
7418 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 7419 | |
54ae1501 HMH |
7420 | ret = platform_driver_register(&tpacpi_pdriver); |
7421 | if (ret) { | |
35ff8b9f HMH |
7422 | printk(TPACPI_ERR |
7423 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
7424 | thinkpad_acpi_module_exit(); |
7425 | return ret; | |
7426 | } | |
ac36393d HMH |
7427 | tp_features.platform_drv_registered = 1; |
7428 | ||
7fd40029 HMH |
7429 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
7430 | if (ret) { | |
35ff8b9f HMH |
7431 | printk(TPACPI_ERR |
7432 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
7433 | thinkpad_acpi_module_exit(); |
7434 | return ret; | |
7435 | } | |
7436 | tp_features.sensors_pdrv_registered = 1; | |
7437 | ||
176750d6 | 7438 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
7439 | if (!ret) { |
7440 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
7441 | ret = tpacpi_create_driver_attributes( |
7442 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 7443 | } |
176750d6 | 7444 | if (ret) { |
35ff8b9f HMH |
7445 | printk(TPACPI_ERR |
7446 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
7447 | thinkpad_acpi_module_exit(); |
7448 | return ret; | |
7449 | } | |
2369cc94 | 7450 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 7451 | |
54ae1501 HMH |
7452 | |
7453 | /* Device initialization */ | |
e0c7dfe7 | 7454 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
7455 | NULL, 0); |
7456 | if (IS_ERR(tpacpi_pdev)) { | |
7457 | ret = PTR_ERR(tpacpi_pdev); | |
7458 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 7459 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
7460 | thinkpad_acpi_module_exit(); |
7461 | return ret; | |
7462 | } | |
7fd40029 | 7463 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
7464 | TPACPI_HWMON_DRVR_NAME, |
7465 | -1, NULL, 0); | |
7fd40029 HMH |
7466 | if (IS_ERR(tpacpi_sensors_pdev)) { |
7467 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
7468 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
7469 | printk(TPACPI_ERR |
7470 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
7471 | thinkpad_acpi_module_exit(); |
7472 | return ret; | |
7473 | } | |
7474 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
7475 | &dev_attr_thinkpad_acpi_pdev_name); | |
7476 | if (ret) { | |
e0c7dfe7 | 7477 | printk(TPACPI_ERR |
35ff8b9f | 7478 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
7479 | thinkpad_acpi_module_exit(); |
7480 | return ret; | |
7481 | } | |
7482 | tp_features.sensors_pdev_attrs_registered = 1; | |
7483 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
7484 | if (IS_ERR(tpacpi_hwmon)) { |
7485 | ret = PTR_ERR(tpacpi_hwmon); | |
7486 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 7487 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
7488 | thinkpad_acpi_module_exit(); |
7489 | return ret; | |
7490 | } | |
8523ed6f | 7491 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
7492 | tpacpi_inputdev = input_allocate_device(); |
7493 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 7494 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
7495 | thinkpad_acpi_module_exit(); |
7496 | return -ENOMEM; | |
7497 | } else { | |
7498 | /* Prepare input device, but don't register */ | |
7499 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 7500 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 7501 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
7502 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
7503 | thinkpad_id.vendor : | |
7504 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
7505 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
7506 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
7507 | } | |
a5763f22 HMH |
7508 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
7509 | ret = ibm_init(&ibms_init[i]); | |
7510 | if (ret >= 0 && *ibms_init[i].param) | |
7511 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 7512 | if (ret < 0) { |
1def7115 | 7513 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7514 | return ret; |
7515 | } | |
7516 | } | |
7f5d1cd6 HMH |
7517 | ret = input_register_device(tpacpi_inputdev); |
7518 | if (ret < 0) { | |
e0c7dfe7 | 7519 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
7520 | thinkpad_acpi_module_exit(); |
7521 | return ret; | |
7522 | } else { | |
7523 | tp_features.input_device_registered = 1; | |
7524 | } | |
1da177e4 | 7525 | |
8fef502e | 7526 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
7527 | return 0; |
7528 | } | |
7529 | ||
95e57ab2 HMH |
7530 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
7531 | ||
f68080f8 HMH |
7532 | /* |
7533 | * DMI matching for module autoloading | |
7534 | * | |
7535 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
7536 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
7537 | * | |
7538 | * Only models listed in thinkwiki will be supported, so add yours | |
7539 | * if it is not there yet. | |
7540 | */ | |
7541 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 7542 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 HMH |
7543 | |
7544 | /* Non-ancient thinkpads */ | |
7545 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
7546 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
7547 | ||
7548 | /* Ancient thinkpad BIOSes have to be identified by | |
7549 | * BIOS type or model number, and there are far less | |
7550 | * BIOS types than model numbers... */ | |
b36a50f9 MCS |
7551 | IBM_BIOS_MODULE_ALIAS("I[BDHIMNOTWVYZ]"); |
7552 | IBM_BIOS_MODULE_ALIAS("1[0368A-GIKM-PST]"); | |
7553 | IBM_BIOS_MODULE_ALIAS("K[UX-Z]"); | |
f68080f8 HMH |
7554 | |
7555 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
7556 | MODULE_DESCRIPTION(TPACPI_DESC); |
7557 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
7558 | MODULE_LICENSE("GPL"); |
7559 | ||
1def7115 HMH |
7560 | module_init(thinkpad_acpi_module_init); |
7561 | module_exit(thinkpad_acpi_module_exit); |