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Commit | Line | Data |
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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> |
6a2e293c | 6 | * Copyright (C) 2006-2008 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 | ||
1cee5cce | 24 | #define TPACPI_VERSION "0.19" |
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> | |
70 | #include <asm/uaccess.h> | |
71 | ||
72 | #include <linux/dmi.h> | |
73 | #include <linux/jiffies.h> | |
74 | #include <linux/workqueue.h> | |
75 | ||
76 | #include <acpi/acpi_drivers.h> | |
77 | #include <acpi/acnamesp.h> | |
78 | ||
79 | #include <linux/pci_ids.h> | |
80 | ||
0c78039f HMH |
81 | |
82 | /* ThinkPad CMOS commands */ | |
83 | #define TP_CMOS_VOLUME_DOWN 0 | |
84 | #define TP_CMOS_VOLUME_UP 1 | |
85 | #define TP_CMOS_VOLUME_MUTE 2 | |
86 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
87 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
88 | ||
89 | /* NVRAM Addresses */ | |
90 | enum tp_nvram_addr { | |
91 | TP_NVRAM_ADDR_HK2 = 0x57, | |
92 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
93 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
94 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
95 | TP_NVRAM_ADDR_MIXER = 0x60, | |
96 | }; | |
97 | ||
98 | /* NVRAM bit masks */ | |
99 | enum { | |
100 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
101 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
102 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
103 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
104 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
105 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
106 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
107 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
108 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
109 | TP_NVRAM_MASK_MUTE = 0x40, | |
110 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
111 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
112 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
113 | }; | |
114 | ||
b21a15f6 | 115 | /* ACPI HIDs */ |
e0c7dfe7 | 116 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
117 | |
118 | /* Input IDs */ | |
119 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
120 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
121 | ||
122 | ||
123 | /**************************************************************************** | |
124 | * Main driver | |
125 | */ | |
126 | ||
e0c7dfe7 HMH |
127 | #define TPACPI_NAME "thinkpad" |
128 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
129 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
130 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
131 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 132 | |
e0c7dfe7 HMH |
133 | #define TPACPI_PROC_DIR "ibm" |
134 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
135 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
136 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" | |
b21a15f6 | 137 | |
e0c7dfe7 | 138 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 139 | |
0c78039f | 140 | /* Debugging */ |
e0c7dfe7 HMH |
141 | #define TPACPI_LOG TPACPI_FILE ": " |
142 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
143 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
144 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
145 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 146 | |
0c78039f HMH |
147 | #define TPACPI_DBG_ALL 0xffff |
148 | #define TPACPI_DBG_ALL 0xffff | |
149 | #define TPACPI_DBG_INIT 0x0001 | |
150 | #define TPACPI_DBG_EXIT 0x0002 | |
151 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
152 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
153 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
154 | } while (0) | |
0c78039f HMH |
155 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
156 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
157 | dbg_printk(a_dbg_level, format, ## arg) | |
158 | static const char *str_supported(int is_supported); | |
159 | #else | |
160 | #define vdbg_printk(a_dbg_level, format, arg...) | |
161 | #endif | |
162 | ||
35ff8b9f HMH |
163 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
164 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
165 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 166 | |
0c78039f HMH |
167 | |
168 | /**************************************************************************** | |
b21a15f6 | 169 | * Driver-wide structs and misc. variables |
0c78039f HMH |
170 | */ |
171 | ||
172 | struct ibm_struct; | |
173 | ||
174 | struct tp_acpi_drv_struct { | |
175 | const struct acpi_device_id *hid; | |
176 | struct acpi_driver *driver; | |
177 | ||
178 | void (*notify) (struct ibm_struct *, u32); | |
179 | acpi_handle *handle; | |
180 | u32 type; | |
181 | struct acpi_device *device; | |
182 | }; | |
183 | ||
184 | struct ibm_struct { | |
185 | char *name; | |
186 | ||
187 | int (*read) (char *); | |
188 | int (*write) (char *); | |
189 | void (*exit) (void); | |
190 | void (*resume) (void); | |
083f1760 | 191 | void (*suspend) (pm_message_t state); |
0c78039f HMH |
192 | |
193 | struct list_head all_drivers; | |
194 | ||
195 | struct tp_acpi_drv_struct *acpi; | |
196 | ||
197 | struct { | |
198 | u8 acpi_driver_registered:1; | |
199 | u8 acpi_notify_installed:1; | |
200 | u8 proc_created:1; | |
201 | u8 init_called:1; | |
202 | u8 experimental:1; | |
203 | } flags; | |
204 | }; | |
205 | ||
206 | struct ibm_init_struct { | |
207 | char param[32]; | |
208 | ||
209 | int (*init) (struct ibm_init_struct *); | |
210 | struct ibm_struct *data; | |
211 | }; | |
212 | ||
213 | static struct { | |
214 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
215 | u32 bay_status:1; | |
216 | u32 bay_eject:1; | |
217 | u32 bay_status2:1; | |
218 | u32 bay_eject2:1; | |
219 | #endif | |
220 | u32 bluetooth:1; | |
221 | u32 hotkey:1; | |
222 | u32 hotkey_mask:1; | |
223 | u32 hotkey_wlsw:1; | |
6c231bd5 | 224 | u32 hotkey_tablet:1; |
0c78039f HMH |
225 | u32 light:1; |
226 | u32 light_status:1; | |
227 | u32 bright_16levels:1; | |
b5972796 | 228 | u32 bright_acpimode:1; |
0c78039f HMH |
229 | u32 wan:1; |
230 | u32 fan_ctrl_status_undef:1; | |
231 | u32 input_device_registered:1; | |
232 | u32 platform_drv_registered:1; | |
233 | u32 platform_drv_attrs_registered:1; | |
234 | u32 sensors_pdrv_registered:1; | |
235 | u32 sensors_pdrv_attrs_registered:1; | |
236 | u32 sensors_pdev_attrs_registered:1; | |
237 | u32 hotkey_poll_active:1; | |
238 | } tp_features; | |
239 | ||
240 | struct thinkpad_id_data { | |
241 | unsigned int vendor; /* ThinkPad vendor: | |
242 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
243 | ||
244 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
245 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
246 | ||
247 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
248 | u16 ec_model; | |
249 | ||
250 | char *model_str; | |
251 | }; | |
0c78039f HMH |
252 | static struct thinkpad_id_data thinkpad_id; |
253 | ||
8fef502e HMH |
254 | static enum { |
255 | TPACPI_LIFE_INIT = 0, | |
256 | TPACPI_LIFE_RUNNING, | |
257 | TPACPI_LIFE_EXITING, | |
258 | } tpacpi_lifecycle; | |
259 | ||
b21a15f6 HMH |
260 | static int experimental; |
261 | static u32 dbg_level; | |
262 | ||
56b6aeb0 HMH |
263 | /**************************************************************************** |
264 | **************************************************************************** | |
265 | * | |
266 | * ACPI Helpers and device model | |
267 | * | |
268 | **************************************************************************** | |
269 | ****************************************************************************/ | |
270 | ||
271 | /************************************************************************* | |
272 | * ACPI basic handles | |
273 | */ | |
1da177e4 | 274 | |
94954cc6 | 275 | static acpi_handle root_handle; |
1da177e4 | 276 | |
e0c7dfe7 | 277 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
278 | static acpi_handle object##_handle; \ |
279 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 280 | static char *object##_path; \ |
1da177e4 LT |
281 | static char *object##_paths[] = { paths } |
282 | ||
e0c7dfe7 | 283 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
284 | "\\_SB.PCI.ISA.EC", /* 570 */ |
285 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
286 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
287 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
288 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
289 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 290 | ); |
78f81cc4 | 291 | |
e0c7dfe7 HMH |
292 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
293 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 294 | |
35ff8b9f HMH |
295 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
296 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
297 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
298 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 299 | ); /* all others */ |
78f81cc4 | 300 | |
e0c7dfe7 | 301 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
302 | "^HKEY", /* R30, R31 */ |
303 | "HKEY", /* all others */ | |
56b6aeb0 | 304 | ); /* 570 */ |
78f81cc4 | 305 | |
d7c1d17d HMH |
306 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
307 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
308 | "\\_SB.PCI0.VID0", /* 770e */ | |
309 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
310 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
311 | ); /* R30, R31 */ | |
312 | ||
78f81cc4 | 313 | |
56b6aeb0 HMH |
314 | /************************************************************************* |
315 | * ACPI helpers | |
a8b7a662 HMH |
316 | */ |
317 | ||
1da177e4 LT |
318 | static int acpi_evalf(acpi_handle handle, |
319 | void *res, char *method, char *fmt, ...) | |
320 | { | |
321 | char *fmt0 = fmt; | |
78f81cc4 | 322 | struct acpi_object_list params; |
e0c7dfe7 | 323 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
324 | struct acpi_buffer result, *resultp; |
325 | union acpi_object out_obj; | |
326 | acpi_status status; | |
327 | va_list ap; | |
328 | char res_type; | |
329 | int success; | |
330 | int quiet; | |
1da177e4 LT |
331 | |
332 | if (!*fmt) { | |
e0c7dfe7 | 333 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
334 | return 0; |
335 | } | |
336 | ||
337 | if (*fmt == 'q') { | |
338 | quiet = 1; | |
339 | fmt++; | |
340 | } else | |
341 | quiet = 0; | |
342 | ||
343 | res_type = *(fmt++); | |
344 | ||
345 | params.count = 0; | |
346 | params.pointer = &in_objs[0]; | |
347 | ||
348 | va_start(ap, fmt); | |
349 | while (*fmt) { | |
350 | char c = *(fmt++); | |
351 | switch (c) { | |
352 | case 'd': /* int */ | |
353 | in_objs[params.count].integer.value = va_arg(ap, int); | |
354 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
355 | break; | |
78f81cc4 | 356 | /* add more types as needed */ |
1da177e4 | 357 | default: |
e0c7dfe7 | 358 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
359 | "with invalid format character '%c'\n", c); |
360 | return 0; | |
361 | } | |
362 | } | |
363 | va_end(ap); | |
364 | ||
78f81cc4 BD |
365 | if (res_type != 'v') { |
366 | result.length = sizeof(out_obj); | |
367 | result.pointer = &out_obj; | |
368 | resultp = &result; | |
369 | } else | |
370 | resultp = NULL; | |
1da177e4 | 371 | |
78f81cc4 | 372 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
373 | |
374 | switch (res_type) { | |
78f81cc4 | 375 | case 'd': /* int */ |
1da177e4 LT |
376 | if (res) |
377 | *(int *)res = out_obj.integer.value; | |
378 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
379 | break; | |
78f81cc4 | 380 | case 'v': /* void */ |
1da177e4 LT |
381 | success = status == AE_OK; |
382 | break; | |
78f81cc4 | 383 | /* add more types as needed */ |
1da177e4 | 384 | default: |
e0c7dfe7 | 385 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
386 | "with invalid format character '%c'\n", res_type); |
387 | return 0; | |
388 | } | |
389 | ||
56b6aeb0 | 390 | if (!success && !quiet) |
e0c7dfe7 | 391 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
392 | method, fmt0, status); |
393 | ||
394 | return success; | |
395 | } | |
396 | ||
35ff8b9f | 397 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
398 | { |
399 | int v; | |
400 | ||
401 | if (ecrd_handle) { | |
402 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
403 | return 0; | |
404 | *p = v; | |
405 | } else { | |
406 | if (ec_read(i, p) < 0) | |
407 | return 0; | |
408 | } | |
409 | ||
410 | return 1; | |
411 | } | |
412 | ||
413 | static int acpi_ec_write(int i, u8 v) | |
414 | { | |
415 | if (ecwr_handle) { | |
416 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
417 | return 0; | |
418 | } else { | |
419 | if (ec_write(i, v) < 0) | |
420 | return 0; | |
421 | } | |
422 | ||
423 | return 1; | |
424 | } | |
425 | ||
013c40e4 | 426 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
427 | static int _sta(acpi_handle handle) |
428 | { | |
429 | int status; | |
430 | ||
431 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
432 | status = 0; | |
433 | ||
434 | return status; | |
435 | } | |
013c40e4 | 436 | #endif |
56b6aeb0 | 437 | |
c9bea99c HMH |
438 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
439 | { | |
440 | if (!cmos_handle) | |
441 | return -ENXIO; | |
442 | ||
443 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
444 | return -EIO; | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
56b6aeb0 HMH |
449 | /************************************************************************* |
450 | * ACPI device model | |
451 | */ | |
452 | ||
35ff8b9f HMH |
453 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
454 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
455 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
456 | ||
8d376cd6 | 457 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
458 | acpi_handle *handle, acpi_handle parent, |
459 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
460 | { |
461 | int i; | |
462 | acpi_status status; | |
463 | ||
5ae930e6 HMH |
464 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
465 | name); | |
466 | ||
56b6aeb0 HMH |
467 | for (i = 0; i < num_paths; i++) { |
468 | status = acpi_get_handle(parent, paths[i], handle); | |
469 | if (ACPI_SUCCESS(status)) { | |
470 | *path = paths[i]; | |
5ae930e6 HMH |
471 | dbg_printk(TPACPI_DBG_INIT, |
472 | "Found ACPI handle %s for %s\n", | |
473 | *path, name); | |
56b6aeb0 HMH |
474 | return; |
475 | } | |
476 | } | |
477 | ||
5ae930e6 HMH |
478 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
479 | name); | |
56b6aeb0 HMH |
480 | *handle = NULL; |
481 | } | |
482 | ||
8d376cd6 | 483 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
484 | { |
485 | struct ibm_struct *ibm = data; | |
486 | ||
8fef502e HMH |
487 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
488 | return; | |
489 | ||
8d376cd6 | 490 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
491 | return; |
492 | ||
8d376cd6 | 493 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
494 | } |
495 | ||
8d376cd6 | 496 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
497 | { |
498 | acpi_status status; | |
5ae930e6 | 499 | int rc; |
56b6aeb0 | 500 | |
8d376cd6 HMH |
501 | BUG_ON(!ibm->acpi); |
502 | ||
503 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
504 | return 0; |
505 | ||
5ae930e6 | 506 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
507 | "setting up ACPI notify for %s\n", ibm->name); |
508 | ||
5ae930e6 HMH |
509 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
510 | if (rc < 0) { | |
e0c7dfe7 | 511 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 512 | ibm->name, rc); |
56b6aeb0 HMH |
513 | return -ENODEV; |
514 | } | |
515 | ||
8d376cd6 HMH |
516 | acpi_driver_data(ibm->acpi->device) = ibm; |
517 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 518 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 519 | ibm->name); |
56b6aeb0 | 520 | |
8d376cd6 HMH |
521 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
522 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
523 | if (ACPI_FAILURE(status)) { |
524 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
525 | printk(TPACPI_NOTICE |
526 | "another device driver is already " | |
527 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 528 | } else { |
35ff8b9f HMH |
529 | printk(TPACPI_ERR |
530 | "acpi_install_notify_handler(%s) failed: %d\n", | |
531 | ibm->name, status); | |
56b6aeb0 HMH |
532 | } |
533 | return -ENODEV; | |
534 | } | |
8d376cd6 | 535 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
536 | return 0; |
537 | } | |
538 | ||
8d376cd6 | 539 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
540 | { |
541 | return 0; | |
542 | } | |
543 | ||
6700121b | 544 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 545 | { |
5ae930e6 | 546 | int rc; |
56b6aeb0 | 547 | |
fe08bc4b HMH |
548 | dbg_printk(TPACPI_DBG_INIT, |
549 | "registering %s as an ACPI driver\n", ibm->name); | |
550 | ||
8d376cd6 HMH |
551 | BUG_ON(!ibm->acpi); |
552 | ||
553 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
554 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 555 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 556 | return -ENOMEM; |
56b6aeb0 HMH |
557 | } |
558 | ||
e0c7dfe7 | 559 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 560 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 561 | |
8d376cd6 | 562 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 563 | |
5ae930e6 HMH |
564 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
565 | if (rc < 0) { | |
e0c7dfe7 | 566 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 567 | ibm->name, rc); |
8d376cd6 HMH |
568 | kfree(ibm->acpi->driver); |
569 | ibm->acpi->driver = NULL; | |
5ae930e6 | 570 | } else if (!rc) |
8d376cd6 | 571 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 572 | |
5ae930e6 | 573 | return rc; |
56b6aeb0 HMH |
574 | } |
575 | ||
576 | ||
577 | /**************************************************************************** | |
578 | **************************************************************************** | |
579 | * | |
580 | * Procfs Helpers | |
581 | * | |
582 | **************************************************************************** | |
583 | ****************************************************************************/ | |
584 | ||
8d376cd6 HMH |
585 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
586 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
587 | { |
588 | struct ibm_struct *ibm = data; | |
589 | int len; | |
590 | ||
591 | if (!ibm || !ibm->read) | |
592 | return -EINVAL; | |
593 | ||
594 | len = ibm->read(page); | |
595 | if (len < 0) | |
596 | return len; | |
597 | ||
598 | if (len <= off + count) | |
599 | *eof = 1; | |
600 | *start = page + off; | |
601 | len -= off; | |
602 | if (len > count) | |
603 | len = count; | |
604 | if (len < 0) | |
605 | len = 0; | |
606 | ||
607 | return len; | |
608 | } | |
609 | ||
8d376cd6 | 610 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 611 | const char __user *userbuf, |
8d376cd6 | 612 | unsigned long count, void *data) |
56b6aeb0 HMH |
613 | { |
614 | struct ibm_struct *ibm = data; | |
615 | char *kernbuf; | |
616 | int ret; | |
617 | ||
618 | if (!ibm || !ibm->write) | |
619 | return -EINVAL; | |
620 | ||
621 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
622 | if (!kernbuf) | |
623 | return -ENOMEM; | |
1da177e4 | 624 | |
56b6aeb0 HMH |
625 | if (copy_from_user(kernbuf, userbuf, count)) { |
626 | kfree(kernbuf); | |
627 | return -EFAULT; | |
628 | } | |
1da177e4 | 629 | |
56b6aeb0 HMH |
630 | kernbuf[count] = 0; |
631 | strcat(kernbuf, ","); | |
632 | ret = ibm->write(kernbuf); | |
633 | if (ret == 0) | |
634 | ret = count; | |
1da177e4 | 635 | |
56b6aeb0 HMH |
636 | kfree(kernbuf); |
637 | ||
638 | return ret; | |
1da177e4 LT |
639 | } |
640 | ||
641 | static char *next_cmd(char **cmds) | |
642 | { | |
643 | char *start = *cmds; | |
644 | char *end; | |
645 | ||
646 | while ((end = strchr(start, ',')) && end == start) | |
647 | start = end + 1; | |
648 | ||
649 | if (!end) | |
650 | return NULL; | |
651 | ||
652 | *end = 0; | |
653 | *cmds = end + 1; | |
654 | return start; | |
655 | } | |
656 | ||
56b6aeb0 | 657 | |
54ae1501 HMH |
658 | /**************************************************************************** |
659 | **************************************************************************** | |
660 | * | |
7f5d1cd6 | 661 | * Device model: input, hwmon and platform |
54ae1501 HMH |
662 | * |
663 | **************************************************************************** | |
664 | ****************************************************************************/ | |
665 | ||
94954cc6 | 666 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 667 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 668 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 669 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 670 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 671 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 672 | |
083f1760 HMH |
673 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
674 | pm_message_t state) | |
675 | { | |
676 | struct ibm_struct *ibm, *itmp; | |
677 | ||
678 | list_for_each_entry_safe(ibm, itmp, | |
679 | &tpacpi_all_drivers, | |
680 | all_drivers) { | |
681 | if (ibm->suspend) | |
682 | (ibm->suspend)(state); | |
683 | } | |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
e295e850 HMH |
688 | static int tpacpi_resume_handler(struct platform_device *pdev) |
689 | { | |
690 | struct ibm_struct *ibm, *itmp; | |
691 | ||
692 | list_for_each_entry_safe(ibm, itmp, | |
693 | &tpacpi_all_drivers, | |
694 | all_drivers) { | |
695 | if (ibm->resume) | |
696 | (ibm->resume)(); | |
697 | } | |
698 | ||
699 | return 0; | |
700 | } | |
701 | ||
54ae1501 HMH |
702 | static struct platform_driver tpacpi_pdriver = { |
703 | .driver = { | |
e0c7dfe7 | 704 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
705 | .owner = THIS_MODULE, |
706 | }, | |
083f1760 | 707 | .suspend = tpacpi_suspend_handler, |
e295e850 | 708 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
709 | }; |
710 | ||
7fd40029 HMH |
711 | static struct platform_driver tpacpi_hwmon_pdriver = { |
712 | .driver = { | |
e0c7dfe7 | 713 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
714 | .owner = THIS_MODULE, |
715 | }, | |
716 | }; | |
54ae1501 | 717 | |
176750d6 | 718 | /************************************************************************* |
b21a15f6 | 719 | * sysfs support helpers |
176750d6 HMH |
720 | */ |
721 | ||
b21a15f6 HMH |
722 | struct attribute_set { |
723 | unsigned int members, max_members; | |
724 | struct attribute_group group; | |
176750d6 HMH |
725 | }; |
726 | ||
7252374a HMH |
727 | struct attribute_set_obj { |
728 | struct attribute_set s; | |
729 | struct attribute *a; | |
730 | } __attribute__((packed)); | |
731 | ||
732 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 733 | const char *name) |
7252374a HMH |
734 | { |
735 | struct attribute_set_obj *sobj; | |
736 | ||
737 | if (max_members == 0) | |
738 | return NULL; | |
739 | ||
740 | /* Allocates space for implicit NULL at the end too */ | |
741 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
742 | max_members * sizeof(struct attribute *), | |
743 | GFP_KERNEL); | |
744 | if (!sobj) | |
745 | return NULL; | |
746 | sobj->s.max_members = max_members; | |
747 | sobj->s.group.attrs = &sobj->a; | |
748 | sobj->s.group.name = name; | |
749 | ||
750 | return &sobj->s; | |
751 | } | |
752 | ||
f74a27d4 HMH |
753 | #define destroy_attr_set(_set) \ |
754 | kfree(_set); | |
755 | ||
7252374a | 756 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 757 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
758 | { |
759 | if (!s || !attr) | |
760 | return -EINVAL; | |
761 | ||
762 | if (s->members >= s->max_members) | |
763 | return -ENOMEM; | |
764 | ||
765 | s->group.attrs[s->members] = attr; | |
766 | s->members++; | |
767 | ||
768 | return 0; | |
769 | } | |
770 | ||
35ff8b9f | 771 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
772 | struct attribute **attr, |
773 | unsigned int count) | |
774 | { | |
775 | int i, res; | |
776 | ||
777 | for (i = 0; i < count; i++) { | |
778 | res = add_to_attr_set(s, attr[i]); | |
779 | if (res) | |
780 | return res; | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
35ff8b9f | 786 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
787 | { |
788 | sysfs_remove_group(kobj, &s->group); | |
789 | destroy_attr_set(s); | |
790 | } | |
791 | ||
f74a27d4 HMH |
792 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
793 | sysfs_create_group(_kobj, &_attr_set->group) | |
794 | ||
7252374a HMH |
795 | static int parse_strtoul(const char *buf, |
796 | unsigned long max, unsigned long *value) | |
797 | { | |
798 | char *endp; | |
799 | ||
32afbf07 HMH |
800 | while (*buf && isspace(*buf)) |
801 | buf++; | |
7252374a HMH |
802 | *value = simple_strtoul(buf, &endp, 0); |
803 | while (*endp && isspace(*endp)) | |
804 | endp++; | |
805 | if (*endp || *value > max) | |
806 | return -EINVAL; | |
807 | ||
808 | return 0; | |
809 | } | |
810 | ||
b5972796 HMH |
811 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
812 | { | |
813 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
814 | union acpi_object *obj; | |
815 | int rc; | |
816 | ||
817 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
818 | obj = (union acpi_object *)buffer.pointer; | |
819 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
820 | printk(TPACPI_ERR "Unknown _BCL data, " | |
821 | "please report this to %s\n", TPACPI_MAIL); | |
822 | rc = 0; | |
823 | } else { | |
824 | rc = obj->package.count; | |
825 | } | |
826 | } else { | |
827 | return 0; | |
828 | } | |
829 | ||
830 | kfree(buffer.pointer); | |
831 | return rc; | |
832 | } | |
833 | ||
834 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
835 | u32 lvl, void *context, void **rv) | |
836 | { | |
837 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
838 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
839 | ||
840 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
841 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
842 | BUG_ON(!rv || !*rv); | |
843 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
844 | return AE_CTRL_TERMINATE; | |
845 | } else { | |
846 | return AE_OK; | |
847 | } | |
848 | } | |
849 | ||
850 | /* | |
851 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
852 | */ | |
853 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
854 | { | |
855 | int status; | |
856 | int bcl_levels = 0; | |
857 | void *bcl_ptr = &bcl_levels; | |
858 | ||
859 | if (!vid_handle) { | |
860 | TPACPI_ACPIHANDLE_INIT(vid); | |
861 | } | |
862 | if (!vid_handle) | |
863 | return 0; | |
864 | ||
865 | /* | |
866 | * Search for a _BCL method, and execute it. This is safe on all | |
867 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
868 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
869 | * about calling the _BCL method in an enabled video device, any | |
870 | * will do for our purposes. | |
871 | */ | |
872 | ||
873 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
874 | tpacpi_acpi_walk_find_bcl, NULL, | |
875 | &bcl_ptr); | |
876 | ||
877 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
878 | tp_features.bright_acpimode = 1; | |
879 | return (bcl_levels - 2); | |
880 | } | |
881 | ||
882 | return 0; | |
883 | } | |
884 | ||
56b6aeb0 | 885 | /************************************************************************* |
b21a15f6 | 886 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
887 | */ |
888 | ||
b21a15f6 HMH |
889 | /* interface_version --------------------------------------------------- */ |
890 | static ssize_t tpacpi_driver_interface_version_show( | |
891 | struct device_driver *drv, | |
892 | char *buf) | |
1da177e4 | 893 | { |
b21a15f6 HMH |
894 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
895 | } | |
896 | ||
897 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
898 | tpacpi_driver_interface_version_show, NULL); | |
899 | ||
900 | /* debug_level --------------------------------------------------------- */ | |
901 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
902 | char *buf) | |
903 | { | |
904 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
905 | } | |
906 | ||
907 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
908 | const char *buf, size_t count) | |
909 | { | |
910 | unsigned long t; | |
911 | ||
912 | if (parse_strtoul(buf, 0xffff, &t)) | |
913 | return -EINVAL; | |
914 | ||
915 | dbg_level = t; | |
916 | ||
917 | return count; | |
918 | } | |
919 | ||
920 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
921 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
922 | ||
923 | /* version ------------------------------------------------------------- */ | |
924 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
925 | char *buf) | |
926 | { | |
35ff8b9f HMH |
927 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
928 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
929 | } |
930 | ||
931 | static DRIVER_ATTR(version, S_IRUGO, | |
932 | tpacpi_driver_version_show, NULL); | |
933 | ||
934 | /* --------------------------------------------------------------------- */ | |
935 | ||
35ff8b9f | 936 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
937 | &driver_attr_debug_level, &driver_attr_version, |
938 | &driver_attr_interface_version, | |
939 | }; | |
940 | ||
941 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
942 | { | |
943 | int i, res; | |
944 | ||
945 | i = 0; | |
946 | res = 0; | |
947 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
948 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
949 | i++; | |
950 | } | |
951 | ||
952 | return res; | |
953 | } | |
954 | ||
955 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
956 | { | |
957 | int i; | |
958 | ||
35ff8b9f | 959 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
960 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
961 | } | |
962 | ||
963 | /**************************************************************************** | |
964 | **************************************************************************** | |
965 | * | |
966 | * Subdrivers | |
967 | * | |
968 | **************************************************************************** | |
969 | ****************************************************************************/ | |
970 | ||
971 | /************************************************************************* | |
972 | * thinkpad-acpi init subdriver | |
973 | */ | |
974 | ||
975 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
976 | { | |
e0c7dfe7 HMH |
977 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
978 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 979 | |
e0c7dfe7 | 980 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
981 | (thinkpad_id.bios_version_str) ? |
982 | thinkpad_id.bios_version_str : "unknown", | |
983 | (thinkpad_id.ec_version_str) ? | |
984 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
985 | |
986 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
e0c7dfe7 | 987 | printk(TPACPI_INFO "%s %s\n", |
d5a2f2f1 HMH |
988 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
989 | "IBM" : ((thinkpad_id.vendor == | |
990 | PCI_VENDOR_ID_LENOVO) ? | |
991 | "Lenovo" : "Unknown vendor"), | |
992 | thinkpad_id.model_str); | |
3945ac36 | 993 | |
1da177e4 LT |
994 | return 0; |
995 | } | |
996 | ||
643f12db | 997 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
998 | { |
999 | int len = 0; | |
1000 | ||
e0c7dfe7 HMH |
1001 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1002 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1003 | |
1004 | return len; | |
1005 | } | |
1006 | ||
a5763f22 HMH |
1007 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1008 | .name = "driver", | |
1009 | .read = thinkpad_acpi_driver_read, | |
1010 | }; | |
1011 | ||
56b6aeb0 HMH |
1012 | /************************************************************************* |
1013 | * Hotkey subdriver | |
1014 | */ | |
1015 | ||
f74a27d4 HMH |
1016 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1017 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1018 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1019 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1020 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1021 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1022 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1023 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1024 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1025 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1026 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1027 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1028 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1029 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1030 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1031 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1032 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1033 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1034 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1035 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1036 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1037 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1038 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1039 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1040 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1041 | }; | |
1042 | ||
01e88f25 HMH |
1043 | enum { /* Keys available through NVRAM polling */ |
1044 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1045 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1046 | }; | |
1047 | ||
1048 | enum { /* Positions of some of the keys in hotkey masks */ | |
1049 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1050 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1051 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1052 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1053 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1054 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1055 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1056 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1057 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1058 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1059 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1060 | }; | |
1061 | ||
1062 | enum { /* NVRAM to ACPI HKEY group map */ | |
1063 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1064 | TP_ACPI_HKEY_ZOOM_MASK | | |
1065 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1066 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1067 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1068 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1069 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1070 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1071 | TP_ACPI_HKEY_MUTE_MASK, | |
1072 | }; | |
1073 | ||
1074 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1075 | struct tp_nvram_state { | |
1076 | u16 thinkpad_toggle:1; | |
1077 | u16 zoom_toggle:1; | |
1078 | u16 display_toggle:1; | |
1079 | u16 thinklight_toggle:1; | |
1080 | u16 hibernate_toggle:1; | |
1081 | u16 displayexp_toggle:1; | |
1082 | u16 display_state:1; | |
1083 | u16 brightness_toggle:1; | |
1084 | u16 volume_toggle:1; | |
1085 | u16 mute:1; | |
1086 | ||
1087 | u8 brightness_level; | |
1088 | u8 volume_level; | |
1089 | }; | |
1090 | ||
1091 | static struct task_struct *tpacpi_hotkey_task; | |
1092 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1093 | static int hotkey_poll_freq = 10; /* Hz */ | |
1094 | static struct mutex hotkey_thread_mutex; | |
1095 | static struct mutex hotkey_thread_data_mutex; | |
1096 | static unsigned int hotkey_config_change; | |
1097 | ||
1098 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1099 | ||
1100 | #define hotkey_source_mask 0U | |
1101 | ||
1102 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1103 | ||
f74a27d4 HMH |
1104 | static struct mutex hotkey_mutex; |
1105 | ||
a713b4d7 HMH |
1106 | static enum { /* Reasons for waking up */ |
1107 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1108 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1109 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1110 | } hotkey_wakeup_reason; | |
1111 | ||
1112 | static int hotkey_autosleep_ack; | |
1113 | ||
78f81cc4 | 1114 | static int hotkey_orig_status; |
ae92bd17 | 1115 | static u32 hotkey_orig_mask; |
9b010de5 | 1116 | static u32 hotkey_all_mask; |
6a38abbf | 1117 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1118 | static u32 hotkey_mask; |
6a38abbf | 1119 | |
b21a15f6 HMH |
1120 | static unsigned int hotkey_report_mode; |
1121 | ||
edf0e0e5 | 1122 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1123 | |
94954cc6 | 1124 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1125 | |
01e88f25 HMH |
1126 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1127 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1128 | do { \ |
1129 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1130 | hotkey_config_change++; \ | |
1131 | } while (0); | |
01e88f25 HMH |
1132 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1133 | mutex_unlock(&hotkey_thread_data_mutex); | |
1134 | #else | |
1135 | #define HOTKEY_CONFIG_CRITICAL_START | |
1136 | #define HOTKEY_CONFIG_CRITICAL_END | |
1137 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1138 | ||
6c231bd5 HMH |
1139 | /* HKEY.MHKG() return bits */ |
1140 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1141 | ||
74941a69 HMH |
1142 | static int hotkey_get_wlsw(int *status) |
1143 | { | |
1144 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1145 | return -EIO; | |
1146 | return 0; | |
1147 | } | |
1148 | ||
6c231bd5 HMH |
1149 | static int hotkey_get_tablet_mode(int *status) |
1150 | { | |
1151 | int s; | |
1152 | ||
1153 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1154 | return -EIO; | |
1155 | ||
cee47f5a HMH |
1156 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1157 | return 0; | |
6c231bd5 HMH |
1158 | } |
1159 | ||
b2c985e7 HMH |
1160 | /* |
1161 | * Call with hotkey_mutex held | |
1162 | */ | |
1163 | static int hotkey_mask_get(void) | |
1164 | { | |
01e88f25 HMH |
1165 | u32 m = 0; |
1166 | ||
b2c985e7 | 1167 | if (tp_features.hotkey_mask) { |
01e88f25 | 1168 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1169 | return -EIO; |
1170 | } | |
01e88f25 | 1171 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1172 | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | /* | |
1177 | * Call with hotkey_mutex held | |
1178 | */ | |
1179 | static int hotkey_mask_set(u32 mask) | |
1180 | { | |
1181 | int i; | |
1182 | int rc = 0; | |
1183 | ||
1184 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1185 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1186 | for (i = 0; i < 32; i++) { |
1187 | u32 m = 1 << i; | |
01e88f25 HMH |
1188 | /* enable in firmware mask only keys not in NVRAM |
1189 | * mode, but enable the key in the cached hotkey_mask | |
1190 | * regardless of mode, or the key will end up | |
1191 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1192 | if (!acpi_evalf(hkey_handle, |
1193 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1194 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1195 | rc = -EIO; |
1196 | break; | |
1197 | } else { | |
1198 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1199 | } | |
1200 | } | |
01e88f25 | 1201 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1202 | |
1203 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1204 | if (!hotkey_mask_get() && !rc && |
1205 | (hotkey_mask & ~hotkey_source_mask) != | |
1206 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1207 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1208 | "requested hot key mask 0x%08x, but " |
1209 | "firmware forced it to 0x%08x\n", | |
1210 | mask, hotkey_mask); | |
1211 | } | |
01e88f25 HMH |
1212 | } else { |
1213 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1214 | HOTKEY_CONFIG_CRITICAL_START | |
1215 | hotkey_mask = mask & hotkey_source_mask; | |
1216 | HOTKEY_CONFIG_CRITICAL_END | |
1217 | hotkey_mask_get(); | |
1218 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1219 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1220 | "requested hot key mask 0x%08x, " |
1221 | "forced to 0x%08x (NVRAM poll mask is " | |
1222 | "0x%08x): no firmware mask support\n", | |
1223 | mask, hotkey_mask, hotkey_source_mask); | |
1224 | } | |
1225 | #else | |
1226 | hotkey_mask_get(); | |
1227 | rc = -ENXIO; | |
1228 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1229 | } |
1230 | ||
1231 | return rc; | |
1232 | } | |
1233 | ||
1234 | static int hotkey_status_get(int *status) | |
1235 | { | |
1236 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1237 | return -EIO; | |
1238 | ||
1239 | return 0; | |
1240 | } | |
1241 | ||
1242 | static int hotkey_status_set(int status) | |
1243 | { | |
1244 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1245 | return -EIO; | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
b7c8c200 HMH |
1250 | static void tpacpi_input_send_radiosw(void) |
1251 | { | |
1252 | int wlsw; | |
1253 | ||
b7c8c200 | 1254 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
d147da73 HMH |
1255 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1256 | ||
b7c8c200 HMH |
1257 | input_report_switch(tpacpi_inputdev, |
1258 | SW_RADIO, !!wlsw); | |
1259 | input_sync(tpacpi_inputdev); | |
b7c8c200 | 1260 | |
d147da73 HMH |
1261 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
1262 | } | |
b7c8c200 HMH |
1263 | } |
1264 | ||
6c231bd5 | 1265 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1266 | { |
6c231bd5 | 1267 | int state; |
b3ec6f91 | 1268 | |
6c231bd5 HMH |
1269 | if (tp_features.hotkey_tablet && |
1270 | !hotkey_get_tablet_mode(&state)) { | |
1271 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1272 | |
6c231bd5 HMH |
1273 | input_report_switch(tpacpi_inputdev, |
1274 | SW_TABLET_MODE, !!state); | |
1275 | input_sync(tpacpi_inputdev); | |
1276 | ||
1277 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1278 | } | |
b3ec6f91 HMH |
1279 | } |
1280 | ||
b7c8c200 HMH |
1281 | static void tpacpi_input_send_key(unsigned int scancode) |
1282 | { | |
1283 | unsigned int keycode; | |
1284 | ||
1285 | keycode = hotkey_keycode_map[scancode]; | |
1286 | ||
1287 | if (keycode != KEY_RESERVED) { | |
1288 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1289 | ||
1290 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1291 | if (keycode == KEY_UNKNOWN) | |
1292 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1293 | scancode); | |
1294 | input_sync(tpacpi_inputdev); | |
1295 | ||
1296 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1297 | if (keycode == KEY_UNKNOWN) | |
1298 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1299 | scancode); | |
1300 | input_sync(tpacpi_inputdev); | |
1301 | ||
1302 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1303 | } | |
1304 | } | |
1305 | ||
01e88f25 HMH |
1306 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1307 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1308 | ||
1309 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1310 | { | |
1311 | tpacpi_input_send_key(scancode); | |
1312 | if (hotkey_report_mode < 2) { | |
1313 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1314 | 0x80, 0x1001 + scancode); | |
1315 | } | |
1316 | } | |
1317 | ||
1318 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1319 | { | |
1320 | u8 d; | |
1321 | ||
1322 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1323 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1324 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1325 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1326 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1327 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1328 | } | |
1329 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1330 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1331 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1332 | } | |
1333 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1334 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1335 | n->displayexp_toggle = | |
1336 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1337 | } | |
1338 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1339 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1340 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1341 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1342 | n->brightness_toggle = | |
1343 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1344 | } | |
1345 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1346 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1347 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1348 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1349 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1350 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1355 | do { \ |
1356 | if ((mask & (1 << __scancode)) && \ | |
1357 | oldn->__member != newn->__member) \ | |
1358 | tpacpi_hotkey_send_key(__scancode); \ | |
1359 | } while (0) | |
01e88f25 HMH |
1360 | |
1361 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1362 | do { if (mask & (1 << __scancode)) \ | |
1363 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1364 | ||
1365 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1366 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1367 | u32 mask) |
1368 | { | |
1369 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1370 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1371 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1372 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1373 | ||
1374 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1375 | ||
1376 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1377 | ||
1378 | /* handle volume */ | |
1379 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1380 | if (oldn->mute != newn->mute) { | |
1381 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1382 | } | |
1383 | if (oldn->volume_level > newn->volume_level) { | |
1384 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1385 | } else if (oldn->volume_level < newn->volume_level) { | |
1386 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1387 | } else if (oldn->mute == newn->mute) { | |
1388 | /* repeated key presses that didn't change state */ | |
1389 | if (newn->mute) { | |
1390 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1391 | } else if (newn->volume_level != 0) { | |
1392 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1393 | } else { | |
1394 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | /* handle brightness */ | |
1400 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1401 | if (oldn->brightness_level < newn->brightness_level) { | |
1402 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1403 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1404 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1405 | } else { | |
1406 | /* repeated key presses that didn't change state */ | |
1407 | if (newn->brightness_level != 0) { | |
1408 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1409 | } else { | |
1410 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1411 | } | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | #undef TPACPI_COMPARE_KEY | |
1417 | #undef TPACPI_MAY_SEND_KEY | |
1418 | ||
1419 | static int hotkey_kthread(void *data) | |
1420 | { | |
1421 | struct tp_nvram_state s[2]; | |
1422 | u32 mask; | |
1423 | unsigned int si, so; | |
1424 | unsigned long t; | |
1425 | unsigned int change_detector, must_reset; | |
1426 | ||
1427 | mutex_lock(&hotkey_thread_mutex); | |
1428 | ||
1429 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1430 | goto exit; | |
1431 | ||
1432 | set_freezable(); | |
1433 | ||
1434 | so = 0; | |
1435 | si = 1; | |
1436 | t = 0; | |
1437 | ||
1438 | /* Initial state for compares */ | |
1439 | mutex_lock(&hotkey_thread_data_mutex); | |
1440 | change_detector = hotkey_config_change; | |
1441 | mask = hotkey_source_mask & hotkey_mask; | |
1442 | mutex_unlock(&hotkey_thread_data_mutex); | |
1443 | hotkey_read_nvram(&s[so], mask); | |
1444 | ||
1445 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1446 | if (t == 0) | |
1447 | t = 1000/hotkey_poll_freq; | |
1448 | t = msleep_interruptible(t); | |
1449 | if (unlikely(kthread_should_stop())) | |
1450 | break; | |
1451 | must_reset = try_to_freeze(); | |
1452 | if (t > 0 && !must_reset) | |
1453 | continue; | |
1454 | ||
1455 | mutex_lock(&hotkey_thread_data_mutex); | |
1456 | if (must_reset || hotkey_config_change != change_detector) { | |
1457 | /* forget old state on thaw or config change */ | |
1458 | si = so; | |
1459 | t = 0; | |
1460 | change_detector = hotkey_config_change; | |
1461 | } | |
1462 | mask = hotkey_source_mask & hotkey_mask; | |
1463 | mutex_unlock(&hotkey_thread_data_mutex); | |
1464 | ||
1465 | if (likely(mask)) { | |
1466 | hotkey_read_nvram(&s[si], mask); | |
1467 | if (likely(si != so)) { | |
1468 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1469 | mask); |
01e88f25 HMH |
1470 | } |
1471 | } | |
1472 | ||
1473 | so = si; | |
1474 | si ^= 1; | |
1475 | } | |
1476 | ||
1477 | exit: | |
1478 | mutex_unlock(&hotkey_thread_mutex); | |
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | static void hotkey_poll_stop_sync(void) | |
1483 | { | |
1484 | if (tpacpi_hotkey_task) { | |
1485 | if (frozen(tpacpi_hotkey_task) || | |
1486 | freezing(tpacpi_hotkey_task)) | |
1487 | thaw_process(tpacpi_hotkey_task); | |
1488 | ||
1489 | kthread_stop(tpacpi_hotkey_task); | |
1490 | tpacpi_hotkey_task = NULL; | |
1491 | mutex_lock(&hotkey_thread_mutex); | |
1492 | /* at this point, the thread did exit */ | |
1493 | mutex_unlock(&hotkey_thread_mutex); | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | /* call with hotkey_mutex held */ | |
1498 | static void hotkey_poll_setup(int may_warn) | |
1499 | { | |
1500 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1501 | hotkey_poll_freq > 0 && | |
1502 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1503 | if (!tpacpi_hotkey_task) { | |
1504 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
35ff8b9f HMH |
1505 | NULL, |
1506 | TPACPI_FILE "d"); | |
01e88f25 HMH |
1507 | if (IS_ERR(tpacpi_hotkey_task)) { |
1508 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1509 | printk(TPACPI_ERR |
1510 | "could not create kernel thread " | |
01e88f25 HMH |
1511 | "for hotkey polling\n"); |
1512 | } | |
1513 | } | |
1514 | } else { | |
1515 | hotkey_poll_stop_sync(); | |
1516 | if (may_warn && | |
1517 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1518 | printk(TPACPI_NOTICE |
1519 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1520 | "which is currently disabled\n", |
1521 | hotkey_source_mask); | |
1522 | } | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | static void hotkey_poll_setup_safe(int may_warn) | |
1527 | { | |
1528 | mutex_lock(&hotkey_mutex); | |
1529 | hotkey_poll_setup(may_warn); | |
1530 | mutex_unlock(&hotkey_mutex); | |
1531 | } | |
1532 | ||
1bc6b9cd HMH |
1533 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1534 | ||
1535 | static void hotkey_poll_setup_safe(int __unused) | |
1536 | { | |
1537 | } | |
1538 | ||
1539 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1540 | ||
01e88f25 HMH |
1541 | static int hotkey_inputdev_open(struct input_dev *dev) |
1542 | { | |
1543 | switch (tpacpi_lifecycle) { | |
1544 | case TPACPI_LIFE_INIT: | |
1545 | /* | |
1546 | * hotkey_init will call hotkey_poll_setup_safe | |
1547 | * at the appropriate moment | |
1548 | */ | |
1549 | return 0; | |
1550 | case TPACPI_LIFE_EXITING: | |
1551 | return -EBUSY; | |
1552 | case TPACPI_LIFE_RUNNING: | |
1553 | hotkey_poll_setup_safe(0); | |
1554 | return 0; | |
1555 | } | |
1556 | ||
1557 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1558 | BUG(); | |
1559 | return -EBUSY; | |
1560 | } | |
1561 | ||
1562 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1563 | { | |
1564 | /* disable hotkey polling when possible */ | |
1565 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1566 | hotkey_poll_setup_safe(0); | |
1567 | } | |
01e88f25 | 1568 | |
a0416420 HMH |
1569 | /* sysfs hotkey enable ------------------------------------------------- */ |
1570 | static ssize_t hotkey_enable_show(struct device *dev, | |
1571 | struct device_attribute *attr, | |
1572 | char *buf) | |
1573 | { | |
ae92bd17 | 1574 | int res, status; |
a0416420 | 1575 | |
b2c985e7 | 1576 | res = hotkey_status_get(&status); |
a0416420 HMH |
1577 | if (res) |
1578 | return res; | |
1579 | ||
1580 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1581 | } | |
1582 | ||
1583 | static ssize_t hotkey_enable_store(struct device *dev, | |
1584 | struct device_attribute *attr, | |
1585 | const char *buf, size_t count) | |
1586 | { | |
1587 | unsigned long t; | |
b2c985e7 | 1588 | int res; |
a0416420 HMH |
1589 | |
1590 | if (parse_strtoul(buf, 1, &t)) | |
1591 | return -EINVAL; | |
1592 | ||
b2c985e7 | 1593 | res = hotkey_status_set(t); |
a0416420 HMH |
1594 | |
1595 | return (res) ? res : count; | |
1596 | } | |
1597 | ||
1598 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1599 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1600 | hotkey_enable_show, hotkey_enable_store); |
1601 | ||
1602 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1603 | static ssize_t hotkey_mask_show(struct device *dev, | |
1604 | struct device_attribute *attr, | |
1605 | char *buf) | |
1606 | { | |
b2c985e7 | 1607 | int res; |
a0416420 | 1608 | |
b2c985e7 HMH |
1609 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1610 | return -ERESTARTSYS; | |
1611 | res = hotkey_mask_get(); | |
1612 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1613 | |
b2c985e7 HMH |
1614 | return (res)? |
1615 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1616 | } |
1617 | ||
1618 | static ssize_t hotkey_mask_store(struct device *dev, | |
1619 | struct device_attribute *attr, | |
1620 | const char *buf, size_t count) | |
1621 | { | |
1622 | unsigned long t; | |
b2c985e7 | 1623 | int res; |
a0416420 | 1624 | |
ae92bd17 | 1625 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1626 | return -EINVAL; |
1627 | ||
b2c985e7 HMH |
1628 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1629 | return -ERESTARTSYS; | |
1630 | ||
1631 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1632 | |
1633 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1634 | hotkey_poll_setup(1); | |
1635 | #endif | |
1636 | ||
b2c985e7 | 1637 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1638 | |
1639 | return (res) ? res : count; | |
1640 | } | |
1641 | ||
1642 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1643 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1644 | hotkey_mask_show, hotkey_mask_store); |
1645 | ||
1646 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1647 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1648 | struct device_attribute *attr, | |
1649 | char *buf) | |
1650 | { | |
1651 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1652 | } | |
1653 | ||
1654 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1655 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1656 | |
1657 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1658 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1659 | struct device_attribute *attr, | |
1660 | char *buf) | |
1661 | { | |
ae92bd17 | 1662 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1663 | } |
1664 | ||
1665 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1666 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1667 | |
9b010de5 HMH |
1668 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1669 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1670 | struct device_attribute *attr, | |
1671 | char *buf) | |
1672 | { | |
01e88f25 HMH |
1673 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1674 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1675 | } |
1676 | ||
1677 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1678 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1679 | ||
1680 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1681 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1682 | struct device_attribute *attr, | |
1683 | char *buf) | |
1684 | { | |
1685 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1686 | (hotkey_all_mask | hotkey_source_mask) |
1687 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1688 | } |
1689 | ||
1690 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1691 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1692 | hotkey_recommended_mask_show, NULL); | |
1693 | ||
01e88f25 HMH |
1694 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1695 | ||
1696 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1697 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1698 | struct device_attribute *attr, | |
1699 | char *buf) | |
1700 | { | |
1701 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1702 | } | |
1703 | ||
1704 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1705 | struct device_attribute *attr, | |
1706 | const char *buf, size_t count) | |
1707 | { | |
1708 | unsigned long t; | |
1709 | ||
1710 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1711 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1712 | return -EINVAL; | |
1713 | ||
1714 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1715 | return -ERESTARTSYS; | |
1716 | ||
1717 | HOTKEY_CONFIG_CRITICAL_START | |
1718 | hotkey_source_mask = t; | |
1719 | HOTKEY_CONFIG_CRITICAL_END | |
1720 | ||
1721 | hotkey_poll_setup(1); | |
1722 | ||
1723 | mutex_unlock(&hotkey_mutex); | |
1724 | ||
1725 | return count; | |
1726 | } | |
1727 | ||
1728 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1729 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1730 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1731 | ||
1732 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1733 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1734 | struct device_attribute *attr, | |
1735 | char *buf) | |
1736 | { | |
1737 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1738 | } | |
1739 | ||
1740 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1741 | struct device_attribute *attr, | |
1742 | const char *buf, size_t count) | |
1743 | { | |
1744 | unsigned long t; | |
1745 | ||
1746 | if (parse_strtoul(buf, 25, &t)) | |
1747 | return -EINVAL; | |
1748 | ||
1749 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1750 | return -ERESTARTSYS; | |
1751 | ||
1752 | hotkey_poll_freq = t; | |
1753 | ||
1754 | hotkey_poll_setup(1); | |
1755 | mutex_unlock(&hotkey_mutex); | |
1756 | ||
1757 | return count; | |
1758 | } | |
1759 | ||
1760 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1761 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1762 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1763 | ||
1764 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1765 | ||
50ebec09 | 1766 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1767 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1768 | struct device_attribute *attr, | |
1769 | char *buf) | |
1770 | { | |
1771 | int res, s; | |
1772 | res = hotkey_get_wlsw(&s); | |
1773 | if (res < 0) | |
1774 | return res; | |
1775 | ||
1776 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1777 | } | |
1778 | ||
1779 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1780 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1781 | ||
50ebec09 HMH |
1782 | static void hotkey_radio_sw_notify_change(void) |
1783 | { | |
1784 | if (tp_features.hotkey_wlsw) | |
1785 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1786 | "hotkey_radio_sw"); | |
1787 | } | |
1788 | ||
6c231bd5 HMH |
1789 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
1790 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
1791 | struct device_attribute *attr, | |
1792 | char *buf) | |
1793 | { | |
1794 | int res, s; | |
1795 | res = hotkey_get_tablet_mode(&s); | |
1796 | if (res < 0) | |
1797 | return res; | |
1798 | ||
1799 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1800 | } | |
1801 | ||
1802 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
1803 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
1804 | ||
1805 | static void hotkey_tablet_mode_notify_change(void) | |
1806 | { | |
1807 | if (tp_features.hotkey_tablet) | |
1808 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1809 | "hotkey_tablet_mode"); | |
1810 | } | |
1811 | ||
ff80f137 HMH |
1812 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1813 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1814 | struct device_attribute *attr, | |
1815 | char *buf) | |
1816 | { | |
1817 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1818 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1819 | } | |
1820 | ||
1821 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1822 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1823 | ||
50ebec09 | 1824 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
1825 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
1826 | struct device_attribute *attr, | |
1827 | char *buf) | |
1828 | { | |
1829 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
1830 | } | |
1831 | ||
1832 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
1833 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
1834 | ||
1d5a2b54 | 1835 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
1836 | { |
1837 | if (tp_features.hotkey_mask) | |
1838 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1839 | "wakeup_reason"); | |
1840 | } | |
1841 | ||
1842 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
1843 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
1844 | struct device_attribute *attr, | |
1845 | char *buf) | |
1846 | { | |
1847 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
1848 | } | |
1849 | ||
1850 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
1851 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
1852 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
1853 | ||
1d5a2b54 | 1854 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
1855 | { |
1856 | if (tp_features.hotkey_mask) | |
1857 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1858 | "wakeup_hotunplug_complete"); | |
1859 | } | |
1860 | ||
a0416420 HMH |
1861 | /* --------------------------------------------------------------------- */ |
1862 | ||
ff80f137 HMH |
1863 | static struct attribute *hotkey_attributes[] __initdata = { |
1864 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1865 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1866 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1867 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1868 | &dev_attr_hotkey_mask.attr, | |
1869 | &dev_attr_hotkey_all_mask.attr, | |
1870 | &dev_attr_hotkey_recommended_mask.attr, | |
1871 | &dev_attr_hotkey_source_mask.attr, | |
1872 | &dev_attr_hotkey_poll_freq.attr, | |
1873 | #endif | |
ff80f137 HMH |
1874 | }; |
1875 | ||
1876 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1877 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1878 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1879 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1880 | &dev_attr_hotkey_all_mask.attr, |
1881 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1882 | #endif |
a713b4d7 HMH |
1883 | &dev_attr_hotkey_wakeup_reason.attr, |
1884 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
1885 | }; |
1886 | ||
a5763f22 | 1887 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1888 | { |
0f089147 HMH |
1889 | /* Requirements for changing the default keymaps: |
1890 | * | |
1891 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1892 | * good reasons. Do not change them unless you have deep | |
1893 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1894 | * the various ThinkPad models. The driver behaves | |
1895 | * differently for KEY_RESERVED: such keys have their | |
1896 | * hot key mask *unset* in mask_recommended, and also | |
1897 | * in the initial hot key mask programmed into the | |
1898 | * firmware at driver load time, which means the firm- | |
1899 | * ware may react very differently if you change them to | |
1900 | * something else; | |
1901 | * | |
1902 | * 2. You must be subscribed to the linux-thinkpad and | |
1903 | * ibm-acpi-devel mailing lists, and you should read the | |
1904 | * list archives since 2007 if you want to change the | |
1905 | * keymaps. This requirement exists so that you will | |
1906 | * know the past history of problems with the thinkpad- | |
1907 | * acpi driver keymaps, and also that you will be | |
1908 | * listening to any bug reports; | |
1909 | * | |
1910 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1911 | * for merging, *ever*. Send them to the linux-acpi | |
1912 | * mailinglist for comments. Merging is to be done only | |
1913 | * through acpi-test and the ACPI maintainer. | |
1914 | * | |
1915 | * If the above is too much to ask, don't change the keymap. | |
1916 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1917 | */ | |
edf0e0e5 HMH |
1918 | static u16 ibm_keycode_map[] __initdata = { |
1919 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1920 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1921 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1922 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1923 | |
1924 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1925 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1926 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1927 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1928 | |
1929 | /* brightness: firmware always reacts to them, unless | |
1930 | * X.org did some tricks in the radeon BIOS scratch | |
1931 | * registers of *some* models */ | |
e927c08d | 1932 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1933 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1934 | |
1935 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1936 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1937 | |
edf0e0e5 HMH |
1938 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1939 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1940 | |
1941 | /* Volume: firmware always react to it and reprograms | |
1942 | * the built-in *extra* mixer. Never map it to control | |
1943 | * another mixer by default. */ | |
e927c08d HMH |
1944 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1945 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1946 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1947 | |
edf0e0e5 | 1948 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1949 | |
edf0e0e5 HMH |
1950 | /* (assignments unknown, please report if found) */ |
1951 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1952 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1953 | }; | |
1954 | static u16 lenovo_keycode_map[] __initdata = { | |
1955 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1956 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1957 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1958 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1959 | |
1960 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1961 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1962 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1963 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1964 | |
b5972796 HMH |
1965 | /* These either have to go through ACPI video, or |
1966 | * act like in the IBM ThinkPads, so don't ever | |
1967 | * enable them by default */ | |
56a185b4 | 1968 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1969 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1970 | |
edf0e0e5 | 1971 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1972 | |
edf0e0e5 HMH |
1973 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1974 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1975 | |
1976 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1977 | * react to it and reprograms the built-in *extra* mixer. | |
1978 | * Never map it to control another mixer by default. | |
1979 | * | |
1980 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1981 | * these over the regular keyboard, so these are no-ops, | |
1982 | * but there are still weird bugs re. MUTE, so do not | |
1983 | * change unless you get test reports from all Lenovo | |
1984 | * models. May cause the BIOS to interfere with the | |
1985 | * HDA mixer. | |
1986 | */ | |
e927c08d HMH |
1987 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1988 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1989 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1990 | |
edf0e0e5 | 1991 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1992 | |
edf0e0e5 HMH |
1993 | /* (assignments unknown, please report if found) */ |
1994 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1995 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1996 | }; | |
1997 | ||
1998 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1999 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2000 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2001 | ||
6a38abbf | 2002 | int res, i; |
74941a69 | 2003 | int status; |
1b6521dc | 2004 | int hkeyv; |
b86c4722 | 2005 | |
fe08bc4b HMH |
2006 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2007 | ||
6a38abbf | 2008 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2009 | BUG_ON(tpacpi_inputdev->open != NULL || |
2010 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2011 | |
e0c7dfe7 | 2012 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2013 | mutex_init(&hotkey_mutex); |
5fba344c | 2014 | |
01e88f25 HMH |
2015 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2016 | mutex_init(&hotkey_thread_mutex); | |
2017 | mutex_init(&hotkey_thread_data_mutex); | |
2018 | #endif | |
2019 | ||
56b6aeb0 | 2020 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2021 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2022 | |
fe08bc4b | 2023 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2024 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2025 | |
d8fd94d9 | 2026 | if (tp_features.hotkey) { |
6c231bd5 | 2027 | hotkey_dev_attributes = create_attr_set(13, NULL); |
a0416420 HMH |
2028 | if (!hotkey_dev_attributes) |
2029 | return -ENOMEM; | |
ff80f137 HMH |
2030 | res = add_many_to_attr_set(hotkey_dev_attributes, |
2031 | hotkey_attributes, | |
2032 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
2033 | if (res) |
2034 | return res; | |
2035 | ||
56b6aeb0 | 2036 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
2037 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
2038 | for HKEY interface version 0x100 */ | |
2039 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2040 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 2041 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 2042 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
2043 | printk(TPACPI_ERR "please report this to %s\n", |
2044 | TPACPI_MAIL); | |
1b6521dc HMH |
2045 | } else { |
2046 | /* | |
2047 | * MHKV 0x100 in A31, R40, R40e, | |
2048 | * T4x, X31, and later | |
01e88f25 | 2049 | */ |
1b6521dc HMH |
2050 | tp_features.hotkey_mask = 1; |
2051 | } | |
2052 | } | |
56b6aeb0 | 2053 | |
fe08bc4b | 2054 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 2055 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 2056 | |
9b010de5 | 2057 | if (tp_features.hotkey_mask) { |
9b010de5 | 2058 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 2059 | "MHKA", "qd")) { |
e0c7dfe7 | 2060 | printk(TPACPI_ERR |
1b6521dc HMH |
2061 | "missing MHKA handler, " |
2062 | "please report this to %s\n", | |
e0c7dfe7 | 2063 | TPACPI_MAIL); |
35ff8b9f HMH |
2064 | /* FN+F12, FN+F4, FN+F3 */ |
2065 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 2066 | } |
9b010de5 HMH |
2067 | } |
2068 | ||
01e88f25 HMH |
2069 | /* hotkey_source_mask *must* be zero for |
2070 | * the first hotkey_mask_get */ | |
b2c985e7 | 2071 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 2072 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
2073 | res = hotkey_mask_get(); |
2074 | hotkey_orig_mask = hotkey_mask; | |
2075 | if (!res) { | |
2076 | res = add_many_to_attr_set( | |
2077 | hotkey_dev_attributes, | |
2078 | hotkey_mask_attributes, | |
2079 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2080 | } | |
a0416420 | 2081 | } |
74941a69 | 2082 | |
01e88f25 HMH |
2083 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2084 | if (tp_features.hotkey_mask) { | |
2085 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2086 | & ~hotkey_all_mask; | |
2087 | } else { | |
2088 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2089 | } | |
2090 | ||
2091 | vdbg_printk(TPACPI_DBG_INIT, | |
2092 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2093 | hotkey_source_mask, hotkey_poll_freq); | |
2094 | #endif | |
2095 | ||
74941a69 HMH |
2096 | /* Not all thinkpads have a hardware radio switch */ |
2097 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2098 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 2099 | printk(TPACPI_INFO |
74941a69 HMH |
2100 | "radio switch found; radios are %s\n", |
2101 | enabled(status, 0)); | |
2102 | res = add_to_attr_set(hotkey_dev_attributes, | |
2103 | &dev_attr_hotkey_radio_sw.attr); | |
2104 | } | |
2105 | ||
6c231bd5 HMH |
2106 | /* For X41t, X60t, X61t Tablets... */ |
2107 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2108 | tp_features.hotkey_tablet = 1; | |
2109 | printk(TPACPI_INFO | |
2110 | "possible tablet mode switch found; " | |
2111 | "ThinkPad in %s mode\n", | |
2112 | (status & TP_HOTKEY_TABLET_MASK)? | |
2113 | "tablet" : "laptop"); | |
2114 | res = add_to_attr_set(hotkey_dev_attributes, | |
2115 | &dev_attr_hotkey_tablet_mode.attr); | |
2116 | } | |
2117 | ||
a0416420 HMH |
2118 | if (!res) |
2119 | res = register_attr_set_with_sysfs( | |
2120 | hotkey_dev_attributes, | |
2121 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2122 | if (res) |
2123 | return res; | |
6a38abbf | 2124 | |
edf0e0e5 HMH |
2125 | /* Set up key map */ |
2126 | ||
2127 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2128 | GFP_KERNEL); | |
2129 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
2130 | printk(TPACPI_ERR |
2131 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
2132 | return -ENOMEM; |
2133 | } | |
2134 | ||
2135 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2136 | dbg_printk(TPACPI_DBG_INIT, | |
2137 | "using Lenovo default hot key map\n"); | |
2138 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2139 | TPACPI_HOTKEY_MAP_SIZE); | |
2140 | } else { | |
2141 | dbg_printk(TPACPI_DBG_INIT, | |
2142 | "using IBM default hot key map\n"); | |
2143 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2144 | TPACPI_HOTKEY_MAP_SIZE); | |
2145 | } | |
2146 | ||
6a38abbf HMH |
2147 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2148 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2149 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2150 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2151 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2152 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2153 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2154 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2155 | set_bit(hotkey_keycode_map[i], | |
2156 | tpacpi_inputdev->keybit); | |
2157 | } else { | |
2158 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2159 | hotkey_reserved_mask |= 1 << i; | |
2160 | } | |
2161 | } | |
2162 | ||
5c29d58f HMH |
2163 | if (tp_features.hotkey_wlsw) { |
2164 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2165 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2166 | } | |
6c231bd5 | 2167 | if (tp_features.hotkey_tablet) { |
b3ec6f91 HMH |
2168 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
2169 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2170 | } | |
5c29d58f | 2171 | |
b5972796 HMH |
2172 | /* Do not issue duplicate brightness change events to |
2173 | * userspace */ | |
2174 | if (!tp_features.bright_acpimode) | |
2175 | /* update bright_acpimode... */ | |
2176 | tpacpi_check_std_acpi_brightness_support(); | |
2177 | ||
2178 | if (tp_features.bright_acpimode) { | |
2179 | printk(TPACPI_INFO | |
2180 | "This ThinkPad has standard ACPI backlight " | |
2181 | "brightness control, supported by the ACPI " | |
2182 | "video driver\n"); | |
2183 | printk(TPACPI_NOTICE | |
2184 | "Disabling thinkpad-acpi brightness events " | |
2185 | "by default...\n"); | |
2186 | ||
2187 | /* The hotkey_reserved_mask change below is not | |
2188 | * necessary while the keys are at KEY_RESERVED in the | |
2189 | * default map, but better safe than sorry, leave it | |
2190 | * here as a marker of what we have to do, especially | |
2191 | * when we finally become able to set this at runtime | |
2192 | * on response to X.org requests */ | |
2193 | hotkey_reserved_mask |= | |
2194 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2195 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2196 | } | |
2197 | ||
1a343760 HMH |
2198 | dbg_printk(TPACPI_DBG_INIT, |
2199 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2200 | res = hotkey_status_set(1); |
2201 | if (res) | |
2202 | return res; | |
01e88f25 HMH |
2203 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2204 | & ~hotkey_reserved_mask) | |
1a343760 | 2205 | | hotkey_orig_mask); |
01e88f25 | 2206 | if (res < 0 && res != -ENXIO) |
1a343760 | 2207 | return res; |
ff80f137 HMH |
2208 | |
2209 | dbg_printk(TPACPI_DBG_INIT, | |
2210 | "legacy hot key reporting over procfs %s\n", | |
2211 | (hotkey_report_mode < 2) ? | |
2212 | "enabled" : "disabled"); | |
01e88f25 | 2213 | |
01e88f25 HMH |
2214 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2215 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2216 | ||
2217 | hotkey_poll_setup_safe(1); | |
7526696a | 2218 | tpacpi_input_send_radiosw(); |
6c231bd5 | 2219 | tpacpi_input_send_tabletsw(); |
56b6aeb0 HMH |
2220 | } |
2221 | ||
d8fd94d9 | 2222 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2223 | } |
2224 | ||
2225 | static void hotkey_exit(void) | |
2226 | { | |
01e88f25 HMH |
2227 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2228 | hotkey_poll_stop_sync(); | |
2229 | #endif | |
2230 | ||
d8fd94d9 | 2231 | if (tp_features.hotkey) { |
35ff8b9f HMH |
2232 | dbg_printk(TPACPI_DBG_EXIT, |
2233 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
2234 | /* no short-circuit boolean operator below! */ |
2235 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2236 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
2237 | printk(TPACPI_ERR |
2238 | "failed to restore hot key mask " | |
2239 | "to BIOS defaults\n"); | |
5fba344c | 2240 | } |
a0416420 HMH |
2241 | |
2242 | if (hotkey_dev_attributes) { | |
2243 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2244 | hotkey_dev_attributes = NULL; | |
2245 | } | |
56b6aeb0 HMH |
2246 | } |
2247 | ||
2248 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2249 | { | |
6a38abbf | 2250 | u32 hkey; |
b7c8c200 | 2251 | unsigned int scancode; |
3eea123d | 2252 | int send_acpi_ev; |
3e5ce914 | 2253 | int ignore_acpi_ev; |
3b64b51d | 2254 | int unk_ev; |
3eea123d HMH |
2255 | |
2256 | if (event != 0x80) { | |
35ff8b9f HMH |
2257 | printk(TPACPI_ERR |
2258 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2259 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2260 | acpi_bus_generate_netlink_event( |
2261 | ibm->acpi->device->pnp.device_class, | |
2262 | ibm->acpi->device->dev.bus_id, | |
2263 | event, 0); | |
3eea123d HMH |
2264 | return; |
2265 | } | |
2266 | ||
2267 | while (1) { | |
2268 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2269 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2270 | return; |
2271 | } | |
2272 | ||
2273 | if (hkey == 0) { | |
2274 | /* queue empty */ | |
2275 | return; | |
2276 | } | |
2277 | ||
3b64b51d | 2278 | send_acpi_ev = 1; |
3e5ce914 | 2279 | ignore_acpi_ev = 0; |
3b64b51d | 2280 | unk_ev = 0; |
56b6aeb0 | 2281 | |
ff80f137 HMH |
2282 | switch (hkey >> 12) { |
2283 | case 1: | |
2284 | /* 0x1000-0x1FFF: key presses */ | |
2285 | scancode = hkey & 0xfff; | |
2286 | if (scancode > 0 && scancode < 0x21) { | |
2287 | scancode--; | |
01e88f25 HMH |
2288 | if (!(hotkey_source_mask & (1 << scancode))) { |
2289 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2290 | send_acpi_ev = 0; |
01e88f25 HMH |
2291 | } else { |
2292 | ignore_acpi_ev = 1; | |
2293 | } | |
ff80f137 | 2294 | } else { |
3b64b51d | 2295 | unk_ev = 1; |
ff80f137 HMH |
2296 | } |
2297 | break; | |
a713b4d7 HMH |
2298 | case 2: |
2299 | /* Wakeup reason */ | |
2300 | switch (hkey) { | |
2301 | case 0x2304: /* suspend, undock */ | |
2302 | case 0x2404: /* hibernation, undock */ | |
2303 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2304 | ignore_acpi_ev = 1; | |
2305 | break; | |
2306 | case 0x2305: /* suspend, bay eject */ | |
2307 | case 0x2405: /* hibernation, bay eject */ | |
2308 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2309 | ignore_acpi_ev = 1; | |
2310 | break; | |
2311 | default: | |
2312 | unk_ev = 1; | |
2313 | } | |
2314 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2315 | printk(TPACPI_INFO | |
2316 | "woke up due to a hot-unplug " | |
2317 | "request...\n"); | |
50ebec09 | 2318 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2319 | } |
2320 | break; | |
2321 | case 3: | |
2322 | /* bay-related wakeups */ | |
2323 | if (hkey == 0x3003) { | |
2324 | hotkey_autosleep_ack = 1; | |
2325 | printk(TPACPI_INFO | |
2326 | "bay ejected\n"); | |
50ebec09 | 2327 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2328 | } else { |
2329 | unk_ev = 1; | |
2330 | } | |
2331 | break; | |
2332 | case 4: | |
2333 | /* dock-related wakeups */ | |
2334 | if (hkey == 0x4003) { | |
2335 | hotkey_autosleep_ack = 1; | |
2336 | printk(TPACPI_INFO | |
2337 | "undocked\n"); | |
50ebec09 | 2338 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2339 | } else { |
2340 | unk_ev = 1; | |
2341 | } | |
2342 | break; | |
ff80f137 | 2343 | case 5: |
d1edb2b5 | 2344 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2345 | switch (hkey) { |
d1edb2b5 | 2346 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2347 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2348 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2349 | break; |
6c231bd5 HMH |
2350 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2351 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2352 | tpacpi_input_send_tabletsw(); | |
2353 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2354 | send_acpi_ev = 0; |
2355 | break; | |
3b64b51d HMH |
2356 | case 0x5001: |
2357 | case 0x5002: | |
2358 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2359 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2360 | break; |
2361 | default: | |
2362 | unk_ev = 1; | |
ff80f137 HMH |
2363 | } |
2364 | break; | |
2365 | case 7: | |
2366 | /* 0x7000-0x7FFF: misc */ | |
2367 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2368 | tpacpi_input_send_radiosw(); | |
50ebec09 | 2369 | hotkey_radio_sw_notify_change(); |
3b64b51d | 2370 | send_acpi_ev = 0; |
6a38abbf | 2371 | break; |
6a38abbf | 2372 | } |
ff80f137 HMH |
2373 | /* fallthrough to default */ |
2374 | default: | |
3b64b51d HMH |
2375 | unk_ev = 1; |
2376 | } | |
2377 | if (unk_ev) { | |
35ff8b9f HMH |
2378 | printk(TPACPI_NOTICE |
2379 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2380 | } |
ff80f137 | 2381 | |
3eea123d | 2382 | /* Legacy events */ |
35ff8b9f HMH |
2383 | if (!ignore_acpi_ev && |
2384 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2385 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2386 | event, hkey); | |
3e5ce914 | 2387 | } |
ff80f137 | 2388 | |
3eea123d | 2389 | /* netlink events */ |
3e5ce914 | 2390 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2391 | acpi_bus_generate_netlink_event( |
2392 | ibm->acpi->device->pnp.device_class, | |
2393 | ibm->acpi->device->dev.bus_id, | |
2394 | event, hkey); | |
3eea123d | 2395 | } |
56b6aeb0 HMH |
2396 | } |
2397 | } | |
2398 | ||
a713b4d7 HMH |
2399 | static void hotkey_suspend(pm_message_t state) |
2400 | { | |
2401 | /* Do these on suspend, we get the events on early resume! */ | |
2402 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2403 | hotkey_autosleep_ack = 0; | |
2404 | } | |
2405 | ||
5c29d58f HMH |
2406 | static void hotkey_resume(void) |
2407 | { | |
b2c985e7 | 2408 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2409 | printk(TPACPI_ERR |
2410 | "error while trying to read hot key mask " | |
2411 | "from firmware\n"); | |
5c29d58f | 2412 | tpacpi_input_send_radiosw(); |
50ebec09 | 2413 | hotkey_radio_sw_notify_change(); |
6c231bd5 | 2414 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2415 | hotkey_wakeup_reason_notify_change(); |
2416 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2417 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2418 | } |
2419 | ||
a0416420 | 2420 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2421 | static int hotkey_read(char *p) |
1da177e4 | 2422 | { |
ae92bd17 | 2423 | int res, status; |
1da177e4 LT |
2424 | int len = 0; |
2425 | ||
d8fd94d9 | 2426 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2427 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2428 | return len; | |
2429 | } | |
2430 | ||
fc589a3c HMH |
2431 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2432 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2433 | res = hotkey_status_get(&status); |
2434 | if (!res) | |
2435 | res = hotkey_mask_get(); | |
40ca9fdf | 2436 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2437 | if (res) |
2438 | return res; | |
1da177e4 LT |
2439 | |
2440 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2441 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2442 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2443 | len += sprintf(p + len, |
2444 | "commands:\tenable, disable, reset, <mask>\n"); | |
2445 | } else { | |
2446 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2447 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2448 | } | |
2449 | ||
2450 | return len; | |
2451 | } | |
2452 | ||
78f81cc4 | 2453 | static int hotkey_write(char *buf) |
1da177e4 | 2454 | { |
ae92bd17 HMH |
2455 | int res, status; |
2456 | u32 mask; | |
1da177e4 | 2457 | char *cmd; |
1da177e4 | 2458 | |
d8fd94d9 | 2459 | if (!tp_features.hotkey) |
1da177e4 LT |
2460 | return -ENODEV; |
2461 | ||
fc589a3c HMH |
2462 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2463 | return -ERESTARTSYS; | |
40ca9fdf | 2464 | |
b2c985e7 HMH |
2465 | status = -1; |
2466 | mask = hotkey_mask; | |
78f81cc4 | 2467 | |
40ca9fdf | 2468 | res = 0; |
1da177e4 LT |
2469 | while ((cmd = next_cmd(&buf))) { |
2470 | if (strlencmp(cmd, "enable") == 0) { | |
2471 | status = 1; | |
2472 | } else if (strlencmp(cmd, "disable") == 0) { | |
2473 | status = 0; | |
2474 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2475 | status = hotkey_orig_status; |
2476 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2477 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2478 | /* mask set */ | |
2479 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2480 | /* mask set */ | |
40ca9fdf HMH |
2481 | } else { |
2482 | res = -EINVAL; | |
2483 | goto errexit; | |
2484 | } | |
1da177e4 | 2485 | } |
b2c985e7 HMH |
2486 | if (status != -1) |
2487 | res = hotkey_status_set(status); | |
1da177e4 | 2488 | |
b2c985e7 HMH |
2489 | if (!res && mask != hotkey_mask) |
2490 | res = hotkey_mask_set(mask); | |
1da177e4 | 2491 | |
40ca9fdf HMH |
2492 | errexit: |
2493 | mutex_unlock(&hotkey_mutex); | |
2494 | return res; | |
78f81cc4 | 2495 | } |
1da177e4 | 2496 | |
1ba90e3a | 2497 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2498 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2499 | {"", 0}, |
2500 | }; | |
2501 | ||
8d376cd6 | 2502 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2503 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2504 | .notify = hotkey_notify, |
2505 | .handle = &hkey_handle, | |
2506 | .type = ACPI_DEVICE_NOTIFY, | |
2507 | }; | |
2508 | ||
a5763f22 HMH |
2509 | static struct ibm_struct hotkey_driver_data = { |
2510 | .name = "hotkey", | |
a5763f22 HMH |
2511 | .read = hotkey_read, |
2512 | .write = hotkey_write, | |
2513 | .exit = hotkey_exit, | |
5c29d58f | 2514 | .resume = hotkey_resume, |
a713b4d7 | 2515 | .suspend = hotkey_suspend, |
8d376cd6 | 2516 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2517 | }; |
2518 | ||
56b6aeb0 HMH |
2519 | /************************************************************************* |
2520 | * Bluetooth subdriver | |
2521 | */ | |
1da177e4 | 2522 | |
f74a27d4 HMH |
2523 | enum { |
2524 | /* ACPI GBDC/SBDC bits */ | |
2525 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2526 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2527 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2528 | }; | |
2529 | ||
2530 | static int bluetooth_get_radiosw(void); | |
2531 | static int bluetooth_set_radiosw(int radio_on); | |
2532 | ||
d3a6ade4 HMH |
2533 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2534 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2535 | struct device_attribute *attr, | |
2536 | char *buf) | |
2537 | { | |
2538 | int status; | |
2539 | ||
2540 | status = bluetooth_get_radiosw(); | |
2541 | if (status < 0) | |
2542 | return status; | |
2543 | ||
2544 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2545 | } | |
2546 | ||
2547 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2548 | struct device_attribute *attr, | |
2549 | const char *buf, size_t count) | |
2550 | { | |
2551 | unsigned long t; | |
2552 | int res; | |
2553 | ||
2554 | if (parse_strtoul(buf, 1, &t)) | |
2555 | return -EINVAL; | |
2556 | ||
2557 | res = bluetooth_set_radiosw(t); | |
2558 | ||
2559 | return (res) ? res : count; | |
2560 | } | |
2561 | ||
2562 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2563 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2564 | bluetooth_enable_show, bluetooth_enable_store); |
2565 | ||
2566 | /* --------------------------------------------------------------------- */ | |
2567 | ||
2568 | static struct attribute *bluetooth_attributes[] = { | |
2569 | &dev_attr_bluetooth_enable.attr, | |
2570 | NULL | |
2571 | }; | |
2572 | ||
2573 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2574 | .attrs = bluetooth_attributes, |
2575 | }; | |
2576 | ||
a5763f22 | 2577 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2578 | { |
d3a6ade4 | 2579 | int res; |
d6fdd1e9 HMH |
2580 | int status = 0; |
2581 | ||
fe08bc4b HMH |
2582 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2583 | ||
e0c7dfe7 | 2584 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2585 | |
78f81cc4 BD |
2586 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2587 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2588 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2589 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2590 | ||
2591 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2592 | str_supported(tp_features.bluetooth), | |
2593 | status); | |
2594 | ||
d3a6ade4 HMH |
2595 | if (tp_features.bluetooth) { |
2596 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2597 | /* no bluetooth hardware present in system */ | |
2598 | tp_features.bluetooth = 0; | |
2599 | dbg_printk(TPACPI_DBG_INIT, | |
2600 | "bluetooth hardware not installed\n"); | |
2601 | } else { | |
2602 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2603 | &bluetooth_attr_group); | |
2604 | if (res) | |
2605 | return res; | |
2606 | } | |
d6fdd1e9 | 2607 | } |
fe08bc4b | 2608 | |
d8fd94d9 | 2609 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2610 | } |
2611 | ||
d3a6ade4 HMH |
2612 | static void bluetooth_exit(void) |
2613 | { | |
2614 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2615 | &bluetooth_attr_group); | |
2616 | } | |
2617 | ||
d6fdd1e9 | 2618 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2619 | { |
2620 | int status; | |
2621 | ||
d6fdd1e9 HMH |
2622 | if (!tp_features.bluetooth) |
2623 | return -ENODEV; | |
1da177e4 | 2624 | |
d6fdd1e9 HMH |
2625 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2626 | return -EIO; | |
2627 | ||
2628 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2629 | } | |
2630 | ||
2631 | static int bluetooth_set_radiosw(int radio_on) | |
2632 | { | |
2633 | int status; | |
2634 | ||
2635 | if (!tp_features.bluetooth) | |
2636 | return -ENODEV; | |
2637 | ||
2638 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2639 | return -EIO; | |
2640 | if (radio_on) | |
2641 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2642 | else | |
2643 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2644 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2645 | return -EIO; | |
2646 | ||
2647 | return 0; | |
1da177e4 LT |
2648 | } |
2649 | ||
d3a6ade4 | 2650 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2651 | static int bluetooth_read(char *p) |
1da177e4 LT |
2652 | { |
2653 | int len = 0; | |
d6fdd1e9 | 2654 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2655 | |
d8fd94d9 | 2656 | if (!tp_features.bluetooth) |
1da177e4 | 2657 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2658 | else { |
d6fdd1e9 HMH |
2659 | len += sprintf(p + len, "status:\t\t%s\n", |
2660 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2661 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2662 | } | |
2663 | ||
2664 | return len; | |
2665 | } | |
2666 | ||
78f81cc4 | 2667 | static int bluetooth_write(char *buf) |
1da177e4 | 2668 | { |
1da177e4 | 2669 | char *cmd; |
1da177e4 | 2670 | |
d8fd94d9 | 2671 | if (!tp_features.bluetooth) |
78f81cc4 | 2672 | return -ENODEV; |
1da177e4 LT |
2673 | |
2674 | while ((cmd = next_cmd(&buf))) { | |
2675 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2676 | bluetooth_set_radiosw(1); |
1da177e4 | 2677 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2678 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2679 | } else |
2680 | return -EINVAL; | |
1da177e4 LT |
2681 | } |
2682 | ||
1da177e4 LT |
2683 | return 0; |
2684 | } | |
2685 | ||
a5763f22 HMH |
2686 | static struct ibm_struct bluetooth_driver_data = { |
2687 | .name = "bluetooth", | |
2688 | .read = bluetooth_read, | |
2689 | .write = bluetooth_write, | |
d3a6ade4 | 2690 | .exit = bluetooth_exit, |
a5763f22 HMH |
2691 | }; |
2692 | ||
56b6aeb0 HMH |
2693 | /************************************************************************* |
2694 | * Wan subdriver | |
2695 | */ | |
2696 | ||
f74a27d4 HMH |
2697 | enum { |
2698 | /* ACPI GWAN/SWAN bits */ | |
2699 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2700 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2701 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2702 | }; | |
2703 | ||
2704 | static int wan_get_radiosw(void); | |
2705 | static int wan_set_radiosw(int radio_on); | |
2706 | ||
d3a6ade4 HMH |
2707 | /* sysfs wan enable ---------------------------------------------------- */ |
2708 | static ssize_t wan_enable_show(struct device *dev, | |
2709 | struct device_attribute *attr, | |
2710 | char *buf) | |
2711 | { | |
2712 | int status; | |
2713 | ||
2714 | status = wan_get_radiosw(); | |
2715 | if (status < 0) | |
2716 | return status; | |
2717 | ||
2718 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2719 | } | |
2720 | ||
2721 | static ssize_t wan_enable_store(struct device *dev, | |
2722 | struct device_attribute *attr, | |
2723 | const char *buf, size_t count) | |
2724 | { | |
2725 | unsigned long t; | |
2726 | int res; | |
2727 | ||
2728 | if (parse_strtoul(buf, 1, &t)) | |
2729 | return -EINVAL; | |
2730 | ||
2731 | res = wan_set_radiosw(t); | |
2732 | ||
2733 | return (res) ? res : count; | |
2734 | } | |
2735 | ||
2736 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2737 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2738 | wan_enable_show, wan_enable_store); |
2739 | ||
2740 | /* --------------------------------------------------------------------- */ | |
2741 | ||
2742 | static struct attribute *wan_attributes[] = { | |
2743 | &dev_attr_wan_enable.attr, | |
2744 | NULL | |
2745 | }; | |
2746 | ||
2747 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2748 | .attrs = wan_attributes, |
2749 | }; | |
2750 | ||
a5763f22 | 2751 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2752 | { |
d3a6ade4 | 2753 | int res; |
d6fdd1e9 HMH |
2754 | int status = 0; |
2755 | ||
fe08bc4b HMH |
2756 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2757 | ||
e0c7dfe7 | 2758 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2759 | |
d8fd94d9 | 2760 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2761 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2762 | ||
2763 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2764 | str_supported(tp_features.wan), | |
2765 | status); | |
2766 | ||
d3a6ade4 HMH |
2767 | if (tp_features.wan) { |
2768 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2769 | /* no wan hardware present in system */ | |
2770 | tp_features.wan = 0; | |
2771 | dbg_printk(TPACPI_DBG_INIT, | |
2772 | "wan hardware not installed\n"); | |
2773 | } else { | |
2774 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2775 | &wan_attr_group); | |
2776 | if (res) | |
2777 | return res; | |
2778 | } | |
d6fdd1e9 | 2779 | } |
fe08bc4b | 2780 | |
d8fd94d9 | 2781 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2782 | } |
2783 | ||
d3a6ade4 HMH |
2784 | static void wan_exit(void) |
2785 | { | |
2786 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2787 | &wan_attr_group); | |
2788 | } | |
2789 | ||
d6fdd1e9 | 2790 | static int wan_get_radiosw(void) |
42adb53c JF |
2791 | { |
2792 | int status; | |
2793 | ||
d6fdd1e9 HMH |
2794 | if (!tp_features.wan) |
2795 | return -ENODEV; | |
42adb53c | 2796 | |
d6fdd1e9 HMH |
2797 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2798 | return -EIO; | |
2799 | ||
2800 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2801 | } | |
2802 | ||
2803 | static int wan_set_radiosw(int radio_on) | |
2804 | { | |
2805 | int status; | |
2806 | ||
2807 | if (!tp_features.wan) | |
2808 | return -ENODEV; | |
2809 | ||
2810 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2811 | return -EIO; | |
2812 | if (radio_on) | |
2813 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2814 | else | |
2815 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2816 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2817 | return -EIO; | |
2818 | ||
2819 | return 0; | |
42adb53c JF |
2820 | } |
2821 | ||
d3a6ade4 | 2822 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2823 | static int wan_read(char *p) |
2824 | { | |
2825 | int len = 0; | |
d6fdd1e9 | 2826 | int status = wan_get_radiosw(); |
42adb53c | 2827 | |
d8fd94d9 | 2828 | if (!tp_features.wan) |
42adb53c | 2829 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2830 | else { |
d6fdd1e9 HMH |
2831 | len += sprintf(p + len, "status:\t\t%s\n", |
2832 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2833 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2834 | } | |
2835 | ||
2836 | return len; | |
2837 | } | |
2838 | ||
2839 | static int wan_write(char *buf) | |
2840 | { | |
42adb53c | 2841 | char *cmd; |
42adb53c | 2842 | |
d8fd94d9 | 2843 | if (!tp_features.wan) |
42adb53c JF |
2844 | return -ENODEV; |
2845 | ||
2846 | while ((cmd = next_cmd(&buf))) { | |
2847 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2848 | wan_set_radiosw(1); |
42adb53c | 2849 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2850 | wan_set_radiosw(0); |
42adb53c JF |
2851 | } else |
2852 | return -EINVAL; | |
42adb53c JF |
2853 | } |
2854 | ||
42adb53c JF |
2855 | return 0; |
2856 | } | |
2857 | ||
a5763f22 HMH |
2858 | static struct ibm_struct wan_driver_data = { |
2859 | .name = "wan", | |
2860 | .read = wan_read, | |
2861 | .write = wan_write, | |
d3a6ade4 | 2862 | .exit = wan_exit, |
92641177 | 2863 | .flags.experimental = 1, |
a5763f22 HMH |
2864 | }; |
2865 | ||
56b6aeb0 HMH |
2866 | /************************************************************************* |
2867 | * Video subdriver | |
2868 | */ | |
2869 | ||
d7c1d17d HMH |
2870 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
2871 | ||
f74a27d4 HMH |
2872 | enum video_access_mode { |
2873 | TPACPI_VIDEO_NONE = 0, | |
2874 | TPACPI_VIDEO_570, /* 570 */ | |
2875 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2876 | TPACPI_VIDEO_NEW, /* all others */ | |
2877 | }; | |
2878 | ||
2879 | enum { /* video status flags, based on VIDEO_570 */ | |
2880 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2881 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2882 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2883 | }; | |
2884 | ||
2885 | enum { /* TPACPI_VIDEO_570 constants */ | |
2886 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2887 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2888 | * video_status_flags */ | |
2889 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2890 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2891 | }; | |
2892 | ||
9a8e1738 HMH |
2893 | static enum video_access_mode video_supported; |
2894 | static int video_orig_autosw; | |
78f81cc4 | 2895 | |
f74a27d4 HMH |
2896 | static int video_autosw_get(void); |
2897 | static int video_autosw_set(int enable); | |
2898 | ||
e0c7dfe7 | 2899 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2900 | |
a5763f22 | 2901 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2902 | { |
78f81cc4 BD |
2903 | int ivga; |
2904 | ||
fe08bc4b HMH |
2905 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2906 | ||
e0c7dfe7 HMH |
2907 | TPACPI_ACPIHANDLE_INIT(vid); |
2908 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2909 | |
78f81cc4 BD |
2910 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2911 | /* G41, assume IVGA doesn't change */ | |
2912 | vid_handle = vid2_handle; | |
2913 | ||
2914 | if (!vid_handle) | |
2915 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2916 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2917 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2918 | /* 570 */ | |
efa27145 | 2919 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2920 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2921 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2922 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2923 | else |
2924 | /* all others */ | |
efa27145 | 2925 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2926 | |
fe08bc4b HMH |
2927 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2928 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2929 | video_supported); | |
2930 | ||
5fba344c | 2931 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2932 | } |
2933 | ||
56b6aeb0 HMH |
2934 | static void video_exit(void) |
2935 | { | |
83f34724 HMH |
2936 | dbg_printk(TPACPI_DBG_EXIT, |
2937 | "restoring original video autoswitch mode\n"); | |
2938 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2939 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2940 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2941 | } |
2942 | ||
83f34724 | 2943 | static int video_outputsw_get(void) |
1da177e4 LT |
2944 | { |
2945 | int status = 0; | |
2946 | int i; | |
2947 | ||
83f34724 HMH |
2948 | switch (video_supported) { |
2949 | case TPACPI_VIDEO_570: | |
2950 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2951 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2952 | return -EIO; | |
2953 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2954 | break; | |
2955 | case TPACPI_VIDEO_770: | |
2956 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2957 | return -EIO; | |
2958 | if (i) | |
2959 | status |= TP_ACPI_VIDEO_S_LCD; | |
2960 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2961 | return -EIO; | |
2962 | if (i) | |
2963 | status |= TP_ACPI_VIDEO_S_CRT; | |
2964 | break; | |
2965 | case TPACPI_VIDEO_NEW: | |
2966 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2967 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2968 | return -EIO; | |
2969 | if (i) | |
2970 | status |= TP_ACPI_VIDEO_S_CRT; | |
2971 | ||
2972 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2973 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2974 | return -EIO; | |
2975 | if (i) | |
2976 | status |= TP_ACPI_VIDEO_S_LCD; | |
2977 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2978 | return -EIO; | |
2979 | if (i) | |
2980 | status |= TP_ACPI_VIDEO_S_DVI; | |
2981 | break; | |
2982 | default: | |
2983 | return -ENOSYS; | |
78f81cc4 BD |
2984 | } |
2985 | ||
2986 | return status; | |
2987 | } | |
1da177e4 | 2988 | |
83f34724 | 2989 | static int video_outputsw_set(int status) |
78f81cc4 | 2990 | { |
83f34724 HMH |
2991 | int autosw; |
2992 | int res = 0; | |
2993 | ||
2994 | switch (video_supported) { | |
2995 | case TPACPI_VIDEO_570: | |
2996 | res = acpi_evalf(NULL, NULL, | |
2997 | "\\_SB.PHS2", "vdd", | |
2998 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2999 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3000 | break; | |
3001 | case TPACPI_VIDEO_770: | |
3002 | autosw = video_autosw_get(); | |
3003 | if (autosw < 0) | |
3004 | return autosw; | |
1da177e4 | 3005 | |
83f34724 HMH |
3006 | res = video_autosw_set(1); |
3007 | if (res) | |
3008 | return res; | |
3009 | res = acpi_evalf(vid_handle, NULL, | |
3010 | "ASWT", "vdd", status * 0x100, 0); | |
3011 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3012 | printk(TPACPI_ERR |
3013 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3014 | return -EIO; |
3015 | } | |
3016 | break; | |
3017 | case TPACPI_VIDEO_NEW: | |
3018 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3019 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3020 | break; |
3021 | default: | |
3022 | return -ENOSYS; | |
3023 | } | |
1da177e4 | 3024 | |
83f34724 | 3025 | return (res)? 0 : -EIO; |
1da177e4 LT |
3026 | } |
3027 | ||
83f34724 | 3028 | static int video_autosw_get(void) |
78f81cc4 | 3029 | { |
83f34724 | 3030 | int autosw = 0; |
78f81cc4 | 3031 | |
83f34724 HMH |
3032 | switch (video_supported) { |
3033 | case TPACPI_VIDEO_570: | |
3034 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3035 | return -EIO; | |
3036 | break; | |
3037 | case TPACPI_VIDEO_770: | |
3038 | case TPACPI_VIDEO_NEW: | |
3039 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3040 | return -EIO; | |
3041 | break; | |
3042 | default: | |
3043 | return -ENOSYS; | |
3044 | } | |
78f81cc4 | 3045 | |
83f34724 | 3046 | return autosw & 1; |
78f81cc4 BD |
3047 | } |
3048 | ||
83f34724 | 3049 | static int video_autosw_set(int enable) |
78f81cc4 | 3050 | { |
83f34724 HMH |
3051 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3052 | return -EIO; | |
3053 | return 0; | |
78f81cc4 BD |
3054 | } |
3055 | ||
83f34724 | 3056 | static int video_outputsw_cycle(void) |
78f81cc4 | 3057 | { |
83f34724 HMH |
3058 | int autosw = video_autosw_get(); |
3059 | int res; | |
78f81cc4 | 3060 | |
83f34724 HMH |
3061 | if (autosw < 0) |
3062 | return autosw; | |
78f81cc4 | 3063 | |
83f34724 HMH |
3064 | switch (video_supported) { |
3065 | case TPACPI_VIDEO_570: | |
3066 | res = video_autosw_set(1); | |
3067 | if (res) | |
3068 | return res; | |
3069 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3070 | break; | |
3071 | case TPACPI_VIDEO_770: | |
3072 | case TPACPI_VIDEO_NEW: | |
3073 | res = video_autosw_set(1); | |
3074 | if (res) | |
3075 | return res; | |
3076 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3077 | break; | |
3078 | default: | |
3079 | return -ENOSYS; | |
3080 | } | |
3081 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3082 | printk(TPACPI_ERR |
3083 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3084 | return -EIO; |
78f81cc4 BD |
3085 | } |
3086 | ||
83f34724 HMH |
3087 | return (res)? 0 : -EIO; |
3088 | } | |
3089 | ||
3090 | static int video_expand_toggle(void) | |
3091 | { | |
3092 | switch (video_supported) { | |
3093 | case TPACPI_VIDEO_570: | |
3094 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3095 | 0 : -EIO; | |
3096 | case TPACPI_VIDEO_770: | |
3097 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3098 | 0 : -EIO; | |
3099 | case TPACPI_VIDEO_NEW: | |
3100 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3101 | 0 : -EIO; | |
3102 | default: | |
3103 | return -ENOSYS; | |
3104 | } | |
3105 | /* not reached */ | |
78f81cc4 BD |
3106 | } |
3107 | ||
56b6aeb0 HMH |
3108 | static int video_read(char *p) |
3109 | { | |
83f34724 | 3110 | int status, autosw; |
56b6aeb0 HMH |
3111 | int len = 0; |
3112 | ||
83f34724 | 3113 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3114 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3115 | return len; | |
3116 | } | |
3117 | ||
83f34724 HMH |
3118 | status = video_outputsw_get(); |
3119 | if (status < 0) | |
3120 | return status; | |
3121 | ||
3122 | autosw = video_autosw_get(); | |
3123 | if (autosw < 0) | |
3124 | return autosw; | |
3125 | ||
56b6aeb0 HMH |
3126 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3127 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3128 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3129 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3130 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3131 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3132 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3133 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3134 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3135 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3136 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3137 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3138 | ||
3139 | return len; | |
3140 | } | |
3141 | ||
78f81cc4 | 3142 | static int video_write(char *buf) |
1da177e4 LT |
3143 | { |
3144 | char *cmd; | |
3145 | int enable, disable, status; | |
83f34724 | 3146 | int res; |
1da177e4 | 3147 | |
83f34724 | 3148 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3149 | return -ENODEV; |
3150 | ||
83f34724 HMH |
3151 | enable = 0; |
3152 | disable = 0; | |
1da177e4 LT |
3153 | |
3154 | while ((cmd = next_cmd(&buf))) { | |
3155 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3156 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3157 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3158 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3159 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3160 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3161 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3162 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3163 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3164 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3165 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3166 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3167 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3168 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3169 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3170 | res = video_autosw_set(1); |
3171 | if (res) | |
3172 | return res; | |
1da177e4 | 3173 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3174 | res = video_autosw_set(0); |
3175 | if (res) | |
3176 | return res; | |
1da177e4 | 3177 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3178 | res = video_outputsw_cycle(); |
3179 | if (res) | |
3180 | return res; | |
1da177e4 | 3181 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3182 | res = video_expand_toggle(); |
3183 | if (res) | |
3184 | return res; | |
1da177e4 LT |
3185 | } else |
3186 | return -EINVAL; | |
3187 | } | |
3188 | ||
3189 | if (enable || disable) { | |
83f34724 HMH |
3190 | status = video_outputsw_get(); |
3191 | if (status < 0) | |
3192 | return status; | |
3193 | res = video_outputsw_set((status & ~disable) | enable); | |
3194 | if (res) | |
3195 | return res; | |
1da177e4 LT |
3196 | } |
3197 | ||
3198 | return 0; | |
3199 | } | |
3200 | ||
a5763f22 HMH |
3201 | static struct ibm_struct video_driver_data = { |
3202 | .name = "video", | |
3203 | .read = video_read, | |
3204 | .write = video_write, | |
3205 | .exit = video_exit, | |
3206 | }; | |
3207 | ||
d7c1d17d HMH |
3208 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3209 | ||
56b6aeb0 HMH |
3210 | /************************************************************************* |
3211 | * Light (thinklight) subdriver | |
3212 | */ | |
1da177e4 | 3213 | |
e0c7dfe7 HMH |
3214 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3215 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3216 | |
a5763f22 | 3217 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3218 | { |
fe08bc4b HMH |
3219 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3220 | ||
e0c7dfe7 HMH |
3221 | TPACPI_ACPIHANDLE_INIT(ledb); |
3222 | TPACPI_ACPIHANDLE_INIT(lght); | |
3223 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 3224 | |
78f81cc4 | 3225 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3226 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3227 | |
d8fd94d9 | 3228 | if (tp_features.light) |
78f81cc4 BD |
3229 | /* light status not supported on |
3230 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3231 | tp_features.light_status = |
3232 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3233 | |
fe08bc4b | 3234 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3235 | str_supported(tp_features.light)); |
fe08bc4b | 3236 | |
d8fd94d9 | 3237 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
3238 | } |
3239 | ||
78f81cc4 | 3240 | static int light_read(char *p) |
1da177e4 LT |
3241 | { |
3242 | int len = 0; | |
3243 | int status = 0; | |
3244 | ||
d8fd94d9 | 3245 | if (!tp_features.light) { |
78f81cc4 | 3246 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3247 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3248 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3249 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3250 | } else { | |
1da177e4 LT |
3251 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
3252 | return -EIO; | |
3253 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
3254 | len += sprintf(p + len, "commands:\ton, off\n"); |
3255 | } | |
1da177e4 LT |
3256 | |
3257 | return len; | |
3258 | } | |
3259 | ||
78f81cc4 | 3260 | static int light_write(char *buf) |
1da177e4 LT |
3261 | { |
3262 | int cmos_cmd, lght_cmd; | |
3263 | char *cmd; | |
3264 | int success; | |
78f81cc4 | 3265 | |
d8fd94d9 | 3266 | if (!tp_features.light) |
78f81cc4 BD |
3267 | return -ENODEV; |
3268 | ||
1da177e4 LT |
3269 | while ((cmd = next_cmd(&buf))) { |
3270 | if (strlencmp(cmd, "on") == 0) { | |
3271 | cmos_cmd = 0x0c; | |
3272 | lght_cmd = 1; | |
3273 | } else if (strlencmp(cmd, "off") == 0) { | |
3274 | cmos_cmd = 0x0d; | |
3275 | lght_cmd = 0; | |
3276 | } else | |
3277 | return -EINVAL; | |
78f81cc4 | 3278 | |
1da177e4 | 3279 | success = cmos_handle ? |
78f81cc4 BD |
3280 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
3281 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
3282 | if (!success) |
3283 | return -EIO; | |
3284 | } | |
3285 | ||
3286 | return 0; | |
3287 | } | |
3288 | ||
a5763f22 HMH |
3289 | static struct ibm_struct light_driver_data = { |
3290 | .name = "light", | |
3291 | .read = light_read, | |
3292 | .write = light_write, | |
3293 | }; | |
3294 | ||
56b6aeb0 HMH |
3295 | /************************************************************************* |
3296 | * Dock subdriver | |
3297 | */ | |
1da177e4 | 3298 | |
85998248 | 3299 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3300 | |
f74a27d4 HMH |
3301 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3302 | static int dock_read(char *p); | |
3303 | static int dock_write(char *buf); | |
3304 | ||
e0c7dfe7 | 3305 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3306 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3307 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3308 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3309 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3310 | ||
5fba344c | 3311 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3312 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3313 | |
1ba90e3a TR |
3314 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3315 | {PCI_ROOT_HID_STRING, 0}, | |
3316 | {"", 0}, | |
3317 | }; | |
3318 | ||
d94a7f16 HMH |
3319 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3320 | { | |
3321 | .notify = dock_notify, | |
3322 | .handle = &dock_handle, | |
3323 | .type = ACPI_SYSTEM_NOTIFY, | |
3324 | }, | |
3325 | { | |
996fba08 HMH |
3326 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3327 | * We just use it to get notifications of dock hotplug | |
3328 | * in very old thinkpads */ | |
1ba90e3a | 3329 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3330 | .notify = dock_notify, |
3331 | .handle = &pci_handle, | |
3332 | .type = ACPI_SYSTEM_NOTIFY, | |
3333 | }, | |
3334 | }; | |
3335 | ||
3336 | static struct ibm_struct dock_driver_data[2] = { | |
3337 | { | |
3338 | .name = "dock", | |
3339 | .read = dock_read, | |
3340 | .write = dock_write, | |
3341 | .acpi = &ibm_dock_acpidriver[0], | |
3342 | }, | |
3343 | { | |
3344 | .name = "dock", | |
3345 | .acpi = &ibm_dock_acpidriver[1], | |
3346 | }, | |
3347 | }; | |
3348 | ||
1da177e4 LT |
3349 | #define dock_docked() (_sta(dock_handle) & 1) |
3350 | ||
a5763f22 | 3351 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3352 | { |
fe08bc4b HMH |
3353 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3354 | ||
e0c7dfe7 | 3355 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3356 | |
fe08bc4b HMH |
3357 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3358 | str_supported(dock_handle != NULL)); | |
3359 | ||
5fba344c HMH |
3360 | return (dock_handle)? 0 : 1; |
3361 | } | |
3362 | ||
d94a7f16 HMH |
3363 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3364 | { | |
3365 | int dock2_needed; | |
3366 | ||
3367 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3368 | ||
3369 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3370 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3371 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3372 | dock2_needed = (pci_handle != NULL); |
3373 | vdbg_printk(TPACPI_DBG_INIT, | |
3374 | "dock PCI handler for the TP 570 is %s\n", | |
3375 | str_supported(dock2_needed)); | |
3376 | } else { | |
3377 | vdbg_printk(TPACPI_DBG_INIT, | |
3378 | "dock subdriver part 2 not required\n"); | |
3379 | dock2_needed = 0; | |
3380 | } | |
3381 | ||
3382 | return (dock2_needed)? 0 : 1; | |
3383 | } | |
3384 | ||
56b6aeb0 HMH |
3385 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3386 | { | |
3387 | int docked = dock_docked(); | |
1ba90e3a TR |
3388 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3389 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3390 | int data; |
56b6aeb0 HMH |
3391 | |
3392 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3393 | data = 1; /* button */ |
56b6aeb0 | 3394 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3395 | data = 3; /* dock */ |
56b6aeb0 | 3396 | else if (event == 3 && docked) |
962ce8ca | 3397 | data = 1; /* button */ |
56b6aeb0 | 3398 | else if (event == 3 && !docked) |
962ce8ca | 3399 | data = 2; /* undock */ |
56b6aeb0 | 3400 | else if (event == 0 && docked) |
962ce8ca | 3401 | data = 3; /* dock */ |
56b6aeb0 | 3402 | else { |
e0c7dfe7 | 3403 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3404 | event, _sta(dock_handle)); |
962ce8ca | 3405 | data = 0; /* unknown */ |
56b6aeb0 | 3406 | } |
14e04fb3 | 3407 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3408 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3409 | ibm->acpi->device->dev.bus_id, | |
3410 | event, data); | |
56b6aeb0 HMH |
3411 | } |
3412 | ||
78f81cc4 | 3413 | static int dock_read(char *p) |
1da177e4 LT |
3414 | { |
3415 | int len = 0; | |
3416 | int docked = dock_docked(); | |
3417 | ||
3418 | if (!dock_handle) | |
3419 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3420 | else if (!docked) | |
3421 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3422 | else { | |
3423 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3424 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3425 | } | |
3426 | ||
3427 | return len; | |
3428 | } | |
3429 | ||
78f81cc4 | 3430 | static int dock_write(char *buf) |
1da177e4 LT |
3431 | { |
3432 | char *cmd; | |
3433 | ||
3434 | if (!dock_docked()) | |
78f81cc4 | 3435 | return -ENODEV; |
1da177e4 LT |
3436 | |
3437 | while ((cmd = next_cmd(&buf))) { | |
3438 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3439 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3440 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3441 | return -EIO; |
3442 | } else if (strlencmp(cmd, "dock") == 0) { | |
3443 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3444 | return -EIO; | |
3445 | } else | |
3446 | return -EINVAL; | |
1da177e4 | 3447 | } |
56b6aeb0 HMH |
3448 | |
3449 | return 0; | |
1da177e4 | 3450 | } |
56b6aeb0 | 3451 | |
85998248 | 3452 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3453 | |
3454 | /************************************************************************* | |
3455 | * Bay subdriver | |
3456 | */ | |
1da177e4 | 3457 | |
85998248 | 3458 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3459 | |
e0c7dfe7 | 3460 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3461 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3462 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3463 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3464 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3465 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3466 | "_EJ0", /* all others */ |
3467 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3468 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3469 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3470 | ); /* all others */ | |
e0c7dfe7 | 3471 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3472 | "_EJ0", /* 770x */ |
3473 | ); /* all others */ | |
3474 | ||
a5763f22 | 3475 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3476 | { |
fe08bc4b HMH |
3477 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3478 | ||
e0c7dfe7 | 3479 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3480 | if (bay_handle) |
e0c7dfe7 HMH |
3481 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3482 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3483 | if (bay2_handle) |
e0c7dfe7 | 3484 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3485 | |
d8fd94d9 HMH |
3486 | tp_features.bay_status = bay_handle && |
3487 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3488 | tp_features.bay_status2 = bay2_handle && | |
3489 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3490 | |
d8fd94d9 HMH |
3491 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3492 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3493 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3494 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3495 | |
fe08bc4b HMH |
3496 | vdbg_printk(TPACPI_DBG_INIT, |
3497 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3498 | str_supported(tp_features.bay_status), |
3499 | str_supported(tp_features.bay_eject), | |
3500 | str_supported(tp_features.bay_status2), | |
3501 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3502 | |
d8fd94d9 HMH |
3503 | return (tp_features.bay_status || tp_features.bay_eject || |
3504 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3505 | } |
3506 | ||
56b6aeb0 HMH |
3507 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3508 | { | |
14e04fb3 | 3509 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3510 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3511 | ibm->acpi->device->dev.bus_id, | |
3512 | event, 0); | |
56b6aeb0 HMH |
3513 | } |
3514 | ||
78f81cc4 BD |
3515 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3516 | ||
3517 | static int bay_read(char *p) | |
1da177e4 LT |
3518 | { |
3519 | int len = 0; | |
78f81cc4 BD |
3520 | int occupied = bay_occupied(bay); |
3521 | int occupied2 = bay_occupied(bay2); | |
3522 | int eject, eject2; | |
3523 | ||
d8fd94d9 HMH |
3524 | len += sprintf(p + len, "status:\t\t%s\n", |
3525 | tp_features.bay_status ? | |
3526 | (occupied ? "occupied" : "unoccupied") : | |
3527 | "not supported"); | |
3528 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3529 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3530 | "occupied" : "unoccupied"); | |
3531 | ||
d8fd94d9 HMH |
3532 | eject = tp_features.bay_eject && occupied; |
3533 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3534 | |
3535 | if (eject && eject2) | |
3536 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3537 | else if (eject) | |
1da177e4 | 3538 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3539 | else if (eject2) |
3540 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3541 | |
3542 | return len; | |
3543 | } | |
3544 | ||
78f81cc4 | 3545 | static int bay_write(char *buf) |
1da177e4 LT |
3546 | { |
3547 | char *cmd; | |
3548 | ||
d8fd94d9 | 3549 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3550 | return -ENODEV; |
3551 | ||
1da177e4 | 3552 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3553 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3554 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3555 | return -EIO; | |
d8fd94d9 | 3556 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3557 | strlencmp(cmd, "eject2") == 0) { |
3558 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3559 | return -EIO; |
3560 | } else | |
3561 | return -EINVAL; | |
3562 | } | |
3563 | ||
3564 | return 0; | |
78f81cc4 | 3565 | } |
a5763f22 | 3566 | |
8d376cd6 HMH |
3567 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3568 | .notify = bay_notify, | |
3569 | .handle = &bay_handle, | |
3570 | .type = ACPI_SYSTEM_NOTIFY, | |
3571 | }; | |
3572 | ||
a5763f22 HMH |
3573 | static struct ibm_struct bay_driver_data = { |
3574 | .name = "bay", | |
3575 | .read = bay_read, | |
3576 | .write = bay_write, | |
8d376cd6 | 3577 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3578 | }; |
3579 | ||
85998248 | 3580 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3581 | |
56b6aeb0 HMH |
3582 | /************************************************************************* |
3583 | * CMOS subdriver | |
3584 | */ | |
3585 | ||
b616004c HMH |
3586 | /* sysfs cmos_command -------------------------------------------------- */ |
3587 | static ssize_t cmos_command_store(struct device *dev, | |
3588 | struct device_attribute *attr, | |
3589 | const char *buf, size_t count) | |
3590 | { | |
3591 | unsigned long cmos_cmd; | |
3592 | int res; | |
3593 | ||
3594 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3595 | return -EINVAL; | |
3596 | ||
3597 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3598 | return (res)? res : count; | |
3599 | } | |
3600 | ||
3601 | static struct device_attribute dev_attr_cmos_command = | |
3602 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3603 | ||
3604 | /* --------------------------------------------------------------------- */ | |
3605 | ||
a5763f22 | 3606 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3607 | { |
b616004c HMH |
3608 | int res; |
3609 | ||
fe08bc4b HMH |
3610 | vdbg_printk(TPACPI_DBG_INIT, |
3611 | "initializing cmos commands subdriver\n"); | |
3612 | ||
e0c7dfe7 | 3613 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3614 | |
fe08bc4b HMH |
3615 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3616 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3617 | |
3618 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3619 | if (res) | |
3620 | return res; | |
3621 | ||
5fba344c HMH |
3622 | return (cmos_handle)? 0 : 1; |
3623 | } | |
3624 | ||
b616004c HMH |
3625 | static void cmos_exit(void) |
3626 | { | |
3627 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3628 | } | |
3629 | ||
78f81cc4 | 3630 | static int cmos_read(char *p) |
1da177e4 LT |
3631 | { |
3632 | int len = 0; | |
3633 | ||
78f81cc4 BD |
3634 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3635 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3636 | if (!cmos_handle) |
3637 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3638 | else { | |
3639 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3640 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3641 | } |
3642 | ||
3643 | return len; | |
3644 | } | |
3645 | ||
78f81cc4 | 3646 | static int cmos_write(char *buf) |
1da177e4 LT |
3647 | { |
3648 | char *cmd; | |
c9bea99c | 3649 | int cmos_cmd, res; |
1da177e4 LT |
3650 | |
3651 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3652 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3653 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3654 | /* cmos_cmd set */ |
3655 | } else | |
3656 | return -EINVAL; | |
3657 | ||
c9bea99c HMH |
3658 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3659 | if (res) | |
3660 | return res; | |
1da177e4 LT |
3661 | } |
3662 | ||
3663 | return 0; | |
78f81cc4 BD |
3664 | } |
3665 | ||
a5763f22 HMH |
3666 | static struct ibm_struct cmos_driver_data = { |
3667 | .name = "cmos", | |
3668 | .read = cmos_read, | |
3669 | .write = cmos_write, | |
b616004c | 3670 | .exit = cmos_exit, |
a5763f22 | 3671 | }; |
56b6aeb0 HMH |
3672 | |
3673 | /************************************************************************* | |
3674 | * LED subdriver | |
3675 | */ | |
3676 | ||
f74a27d4 HMH |
3677 | enum led_access_mode { |
3678 | TPACPI_LED_NONE = 0, | |
3679 | TPACPI_LED_570, /* 570 */ | |
3680 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3681 | TPACPI_LED_NEW, /* all others */ | |
3682 | }; | |
3683 | ||
3684 | enum { /* For TPACPI_LED_OLD */ | |
3685 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3686 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3687 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3688 | }; | |
3689 | ||
9a8e1738 | 3690 | static enum led_access_mode led_supported; |
78f81cc4 | 3691 | |
e0c7dfe7 | 3692 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3693 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3694 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3695 | "LED", /* all others */ |
3696 | ); /* R30, R31 */ | |
3697 | ||
a5763f22 | 3698 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3699 | { |
fe08bc4b HMH |
3700 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3701 | ||
e0c7dfe7 | 3702 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3703 | |
78f81cc4 BD |
3704 | if (!led_handle) |
3705 | /* led not supported on R30, R31 */ | |
efa27145 | 3706 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3707 | else if (strlencmp(led_path, "SLED") == 0) |
3708 | /* 570 */ | |
efa27145 | 3709 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3710 | else if (strlencmp(led_path, "SYSL") == 0) |
3711 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3712 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3713 | else |
3714 | /* all others */ | |
efa27145 | 3715 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3716 | |
fe08bc4b HMH |
3717 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3718 | str_supported(led_supported), led_supported); | |
3719 | ||
5fba344c | 3720 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3721 | } |
3722 | ||
3723 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3724 | ||
3725 | static int led_read(char *p) | |
1da177e4 LT |
3726 | { |
3727 | int len = 0; | |
3728 | ||
78f81cc4 BD |
3729 | if (!led_supported) { |
3730 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3731 | return len; | |
3732 | } | |
3733 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3734 | ||
efa27145 | 3735 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3736 | /* 570 */ |
3737 | int i, status; | |
3738 | for (i = 0; i < 8; i++) { | |
3739 | if (!acpi_evalf(ec_handle, | |
3740 | &status, "GLED", "dd", 1 << i)) | |
3741 | return -EIO; | |
3742 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3743 | i, led_status(status)); | |
3744 | } | |
3745 | } | |
3746 | ||
1da177e4 | 3747 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3748 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3749 | |
3750 | return len; | |
3751 | } | |
3752 | ||
78f81cc4 BD |
3753 | /* off, on, blink */ |
3754 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3755 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3756 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3757 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3758 | ||
78f81cc4 | 3759 | static int led_write(char *buf) |
1da177e4 LT |
3760 | { |
3761 | char *cmd; | |
78f81cc4 BD |
3762 | int led, ind, ret; |
3763 | ||
3764 | if (!led_supported) | |
3765 | return -ENODEV; | |
1da177e4 LT |
3766 | |
3767 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3768 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3769 | return -EINVAL; |
3770 | ||
78f81cc4 BD |
3771 | if (strstr(cmd, "off")) { |
3772 | ind = 0; | |
1da177e4 | 3773 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3774 | ind = 1; |
3775 | } else if (strstr(cmd, "blink")) { | |
3776 | ind = 2; | |
1da177e4 LT |
3777 | } else |
3778 | return -EINVAL; | |
78f81cc4 | 3779 | |
efa27145 | 3780 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3781 | /* 570 */ |
3782 | led = 1 << led; | |
1da177e4 | 3783 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3784 | led, led_sled_arg1[ind])) |
1da177e4 | 3785 | return -EIO; |
efa27145 | 3786 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3787 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3788 | led = 1 << led; | |
efa27145 | 3789 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 | 3790 | if (ret >= 0) |
35ff8b9f HMH |
3791 | ret = ec_write(TPACPI_LED_EC_HLBL, |
3792 | led * led_exp_hlbl[ind]); | |
78f81cc4 | 3793 | if (ret >= 0) |
35ff8b9f HMH |
3794 | ret = ec_write(TPACPI_LED_EC_HLCL, |
3795 | led * led_exp_hlcl[ind]); | |
78f81cc4 BD |
3796 | if (ret < 0) |
3797 | return ret; | |
3798 | } else { | |
3799 | /* all others */ | |
3800 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3801 | led, led_led_arg1[ind])) | |
1da177e4 | 3802 | return -EIO; |
78f81cc4 BD |
3803 | } |
3804 | } | |
3805 | ||
3806 | return 0; | |
3807 | } | |
3808 | ||
a5763f22 HMH |
3809 | static struct ibm_struct led_driver_data = { |
3810 | .name = "led", | |
3811 | .read = led_read, | |
3812 | .write = led_write, | |
3813 | }; | |
3814 | ||
56b6aeb0 HMH |
3815 | /************************************************************************* |
3816 | * Beep subdriver | |
3817 | */ | |
3818 | ||
e0c7dfe7 | 3819 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3820 | |
a5763f22 | 3821 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3822 | { |
fe08bc4b HMH |
3823 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3824 | ||
e0c7dfe7 | 3825 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3826 | |
fe08bc4b HMH |
3827 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3828 | str_supported(beep_handle != NULL)); | |
3829 | ||
5fba344c HMH |
3830 | return (beep_handle)? 0 : 1; |
3831 | } | |
3832 | ||
78f81cc4 BD |
3833 | static int beep_read(char *p) |
3834 | { | |
3835 | int len = 0; | |
3836 | ||
3837 | if (!beep_handle) | |
3838 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3839 | else { | |
3840 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3841 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3842 | } | |
3843 | ||
3844 | return len; | |
3845 | } | |
3846 | ||
3847 | static int beep_write(char *buf) | |
3848 | { | |
3849 | char *cmd; | |
3850 | int beep_cmd; | |
3851 | ||
3852 | if (!beep_handle) | |
3853 | return -ENODEV; | |
3854 | ||
3855 | while ((cmd = next_cmd(&buf))) { | |
3856 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3857 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3858 | /* beep_cmd set */ | |
3859 | } else | |
3860 | return -EINVAL; | |
3861 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3862 | return -EIO; | |
3863 | } | |
3864 | ||
3865 | return 0; | |
3866 | } | |
3867 | ||
a5763f22 HMH |
3868 | static struct ibm_struct beep_driver_data = { |
3869 | .name = "beep", | |
3870 | .read = beep_read, | |
3871 | .write = beep_write, | |
3872 | }; | |
3873 | ||
56b6aeb0 HMH |
3874 | /************************************************************************* |
3875 | * Thermal subdriver | |
3876 | */ | |
78f81cc4 | 3877 | |
f74a27d4 HMH |
3878 | enum thermal_access_mode { |
3879 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3880 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3881 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3882 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3883 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3884 | }; | |
3885 | ||
3886 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3887 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3888 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3889 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3890 | }; | |
3891 | ||
3892 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3893 | struct ibm_thermal_sensors_struct { | |
3894 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3895 | }; | |
3896 | ||
a26f878a | 3897 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3898 | |
b21a15f6 HMH |
3899 | /* idx is zero-based */ |
3900 | static int thermal_get_sensor(int idx, s32 *value) | |
3901 | { | |
3902 | int t; | |
3903 | s8 tmp; | |
3904 | char tmpi[5]; | |
3905 | ||
3906 | t = TP_EC_THERMAL_TMP0; | |
3907 | ||
3908 | switch (thermal_read_mode) { | |
3909 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3910 | case TPACPI_THERMAL_TPEC_16: | |
3911 | if (idx >= 8 && idx <= 15) { | |
3912 | t = TP_EC_THERMAL_TMP8; | |
3913 | idx -= 8; | |
3914 | } | |
3915 | /* fallthrough */ | |
3916 | #endif | |
3917 | case TPACPI_THERMAL_TPEC_8: | |
3918 | if (idx <= 7) { | |
3919 | if (!acpi_ec_read(t + idx, &tmp)) | |
3920 | return -EIO; | |
3921 | *value = tmp * 1000; | |
3922 | return 0; | |
3923 | } | |
3924 | break; | |
3925 | ||
3926 | case TPACPI_THERMAL_ACPI_UPDT: | |
3927 | if (idx <= 7) { | |
3928 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3929 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3930 | return -EIO; | |
3931 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3932 | return -EIO; | |
3933 | *value = (t - 2732) * 100; | |
3934 | return 0; | |
3935 | } | |
3936 | break; | |
3937 | ||
3938 | case TPACPI_THERMAL_ACPI_TMP07: | |
3939 | if (idx <= 7) { | |
3940 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3941 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3942 | return -EIO; | |
3943 | if (t > 127 || t < -127) | |
3944 | t = TP_EC_THERMAL_TMP_NA; | |
3945 | *value = t * 1000; | |
3946 | return 0; | |
3947 | } | |
3948 | break; | |
3949 | ||
3950 | case TPACPI_THERMAL_NONE: | |
3951 | default: | |
3952 | return -ENOSYS; | |
3953 | } | |
3954 | ||
3955 | return -EINVAL; | |
3956 | } | |
3957 | ||
3958 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3959 | { | |
3960 | int res, i; | |
3961 | int n; | |
3962 | ||
3963 | n = 8; | |
3964 | i = 0; | |
3965 | ||
3966 | if (!s) | |
3967 | return -EINVAL; | |
3968 | ||
3969 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3970 | n = 16; | |
3971 | ||
35ff8b9f | 3972 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
3973 | res = thermal_get_sensor(i, &s->temp[i]); |
3974 | if (res) | |
3975 | return res; | |
3976 | } | |
3977 | ||
3978 | return n; | |
3979 | } | |
f74a27d4 | 3980 | |
2c37aa4e HMH |
3981 | /* sysfs temp##_input -------------------------------------------------- */ |
3982 | ||
3983 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3984 | struct device_attribute *attr, | |
3985 | char *buf) | |
3986 | { | |
3987 | struct sensor_device_attribute *sensor_attr = | |
3988 | to_sensor_dev_attr(attr); | |
3989 | int idx = sensor_attr->index; | |
3990 | s32 value; | |
3991 | int res; | |
3992 | ||
3993 | res = thermal_get_sensor(idx, &value); | |
3994 | if (res) | |
3995 | return res; | |
3996 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3997 | return -ENXIO; | |
3998 | ||
3999 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
4000 | } | |
4001 | ||
4002 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
4003 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
4004 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
4005 | |
4006 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
4007 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
4008 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
4009 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
4010 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
4011 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
4012 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
4013 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
4014 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
4015 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
4016 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
4017 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
4018 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
4019 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
4020 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
4021 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
4022 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
4023 | }; | |
4024 | ||
4025 | #define THERMAL_ATTRS(X) \ | |
4026 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
4027 | ||
4028 | static struct attribute *thermal_temp_input_attr[] = { | |
4029 | THERMAL_ATTRS(8), | |
4030 | THERMAL_ATTRS(9), | |
4031 | THERMAL_ATTRS(10), | |
4032 | THERMAL_ATTRS(11), | |
4033 | THERMAL_ATTRS(12), | |
4034 | THERMAL_ATTRS(13), | |
4035 | THERMAL_ATTRS(14), | |
4036 | THERMAL_ATTRS(15), | |
4037 | THERMAL_ATTRS(0), | |
4038 | THERMAL_ATTRS(1), | |
4039 | THERMAL_ATTRS(2), | |
4040 | THERMAL_ATTRS(3), | |
4041 | THERMAL_ATTRS(4), | |
4042 | THERMAL_ATTRS(5), | |
4043 | THERMAL_ATTRS(6), | |
4044 | THERMAL_ATTRS(7), | |
4045 | NULL | |
4046 | }; | |
4047 | ||
4048 | static const struct attribute_group thermal_temp_input16_group = { | |
4049 | .attrs = thermal_temp_input_attr | |
4050 | }; | |
4051 | ||
4052 | static const struct attribute_group thermal_temp_input8_group = { | |
4053 | .attrs = &thermal_temp_input_attr[8] | |
4054 | }; | |
4055 | ||
4056 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4057 | #undef THERMAL_ATTRS | |
4058 | ||
4059 | /* --------------------------------------------------------------------- */ | |
4060 | ||
a5763f22 | 4061 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4062 | { |
60eb0b35 HMH |
4063 | u8 t, ta1, ta2; |
4064 | int i; | |
5fba344c | 4065 | int acpi_tmp7; |
2c37aa4e | 4066 | int res; |
5fba344c | 4067 | |
fe08bc4b HMH |
4068 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4069 | ||
5fba344c | 4070 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4071 | |
3d6f99ca | 4072 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4073 | /* |
4074 | * Direct EC access mode: sensors at registers | |
4075 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4076 | * non-implemented, thermal sensors return 0x80 when | |
4077 | * not available | |
4078 | */ | |
78f81cc4 | 4079 | |
60eb0b35 HMH |
4080 | ta1 = ta2 = 0; |
4081 | for (i = 0; i < 8; i++) { | |
04cc862c | 4082 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4083 | ta1 |= t; |
4084 | } else { | |
4085 | ta1 = 0; | |
4086 | break; | |
4087 | } | |
04cc862c | 4088 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4089 | ta2 |= t; |
4090 | } else { | |
4091 | ta1 = 0; | |
4092 | break; | |
4093 | } | |
4094 | } | |
4095 | if (ta1 == 0) { | |
4096 | /* This is sheer paranoia, but we handle it anyway */ | |
4097 | if (acpi_tmp7) { | |
e0c7dfe7 | 4098 | printk(TPACPI_ERR |
60eb0b35 | 4099 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
4100 | "falling back to ACPI TMPx access " |
4101 | "mode\n"); | |
efa27145 | 4102 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 4103 | } else { |
e0c7dfe7 | 4104 | printk(TPACPI_ERR |
60eb0b35 HMH |
4105 | "ThinkPad ACPI EC access misbehaving, " |
4106 | "disabling thermal sensors access\n"); | |
efa27145 | 4107 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4108 | } |
4109 | } else { | |
4110 | thermal_read_mode = | |
4111 | (ta2 != 0) ? | |
efa27145 | 4112 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4113 | } |
4114 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4115 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4116 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4117 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4118 | } else { |
4119 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4120 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4121 | } |
4122 | } else { | |
4123 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4124 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4125 | } |
78f81cc4 | 4126 | |
fe08bc4b HMH |
4127 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4128 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4129 | thermal_read_mode); | |
4130 | ||
35ff8b9f | 4131 | switch (thermal_read_mode) { |
2c37aa4e | 4132 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4133 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4134 | &thermal_temp_input16_group); |
4135 | if (res) | |
4136 | return res; | |
4137 | break; | |
4138 | case TPACPI_THERMAL_TPEC_8: | |
4139 | case TPACPI_THERMAL_ACPI_TMP07: | |
4140 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4141 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4142 | &thermal_temp_input8_group); |
4143 | if (res) | |
4144 | return res; | |
4145 | break; | |
4146 | case TPACPI_THERMAL_NONE: | |
4147 | default: | |
4148 | return 1; | |
4149 | } | |
4150 | ||
4151 | return 0; | |
4152 | } | |
4153 | ||
4154 | static void thermal_exit(void) | |
4155 | { | |
35ff8b9f | 4156 | switch (thermal_read_mode) { |
2c37aa4e | 4157 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4158 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4159 | &thermal_temp_input16_group); |
4160 | break; | |
4161 | case TPACPI_THERMAL_TPEC_8: | |
4162 | case TPACPI_THERMAL_ACPI_TMP07: | |
4163 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4164 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4165 | &thermal_temp_input16_group); |
4166 | break; | |
4167 | case TPACPI_THERMAL_NONE: | |
4168 | default: | |
4169 | break; | |
4170 | } | |
78f81cc4 BD |
4171 | } |
4172 | ||
a26f878a HMH |
4173 | static int thermal_read(char *p) |
4174 | { | |
4175 | int len = 0; | |
4176 | int n, i; | |
4177 | struct ibm_thermal_sensors_struct t; | |
4178 | ||
4179 | n = thermal_get_sensors(&t); | |
4180 | if (unlikely(n < 0)) | |
4181 | return n; | |
4182 | ||
4183 | len += sprintf(p + len, "temperatures:\t"); | |
4184 | ||
4185 | if (n > 0) { | |
4186 | for (i = 0; i < (n - 1); i++) | |
4187 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4188 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4189 | } else | |
4190 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4191 | |
4192 | return len; | |
4193 | } | |
4194 | ||
a5763f22 HMH |
4195 | static struct ibm_struct thermal_driver_data = { |
4196 | .name = "thermal", | |
4197 | .read = thermal_read, | |
2c37aa4e | 4198 | .exit = thermal_exit, |
a5763f22 HMH |
4199 | }; |
4200 | ||
56b6aeb0 HMH |
4201 | /************************************************************************* |
4202 | * EC Dump subdriver | |
4203 | */ | |
4204 | ||
78f81cc4 BD |
4205 | static u8 ecdump_regs[256]; |
4206 | ||
4207 | static int ecdump_read(char *p) | |
4208 | { | |
4209 | int len = 0; | |
4210 | int i, j; | |
4211 | u8 v; | |
4212 | ||
4213 | len += sprintf(p + len, "EC " | |
4214 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4215 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4216 | for (i = 0; i < 256; i += 16) { | |
4217 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4218 | for (j = 0; j < 16; j++) { | |
4219 | if (!acpi_ec_read(i + j, &v)) | |
4220 | break; | |
4221 | if (v != ecdump_regs[i + j]) | |
4222 | len += sprintf(p + len, " *%02x", v); | |
4223 | else | |
4224 | len += sprintf(p + len, " %02x", v); | |
4225 | ecdump_regs[i + j] = v; | |
4226 | } | |
4227 | len += sprintf(p + len, "\n"); | |
4228 | if (j != 16) | |
4229 | break; | |
4230 | } | |
4231 | ||
4232 | /* These are way too dangerous to advertise openly... */ | |
4233 | #if 0 | |
4234 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4235 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4236 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4237 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4238 | #endif | |
4239 | return len; | |
4240 | } | |
4241 | ||
4242 | static int ecdump_write(char *buf) | |
4243 | { | |
4244 | char *cmd; | |
4245 | int i, v; | |
4246 | ||
4247 | while ((cmd = next_cmd(&buf))) { | |
4248 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4249 | /* i and v set */ | |
4250 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4251 | /* i and v set */ | |
4252 | } else | |
4253 | return -EINVAL; | |
4254 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4255 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4256 | return -EIO; |
4257 | } else | |
4258 | return -EINVAL; | |
4259 | } | |
4260 | ||
4261 | return 0; | |
78f81cc4 BD |
4262 | } |
4263 | ||
a5763f22 HMH |
4264 | static struct ibm_struct ecdump_driver_data = { |
4265 | .name = "ecdump", | |
4266 | .read = ecdump_read, | |
4267 | .write = ecdump_write, | |
92641177 | 4268 | .flags.experimental = 1, |
a5763f22 HMH |
4269 | }; |
4270 | ||
56b6aeb0 HMH |
4271 | /************************************************************************* |
4272 | * Backlight/brightness subdriver | |
4273 | */ | |
4274 | ||
f74a27d4 HMH |
4275 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4276 | ||
94954cc6 | 4277 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4278 | static int brightness_offset = 0x31; |
4279 | static int brightness_mode; | |
4280 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4281 | ||
b21a15f6 | 4282 | static struct mutex brightness_mutex; |
56b6aeb0 | 4283 | |
b21a15f6 HMH |
4284 | /* |
4285 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4286 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
4287 | */ | |
4288 | static int brightness_get(struct backlight_device *bd) | |
4289 | { | |
4290 | u8 lec = 0, lcmos = 0, level = 0; | |
4291 | ||
4292 | if (brightness_mode & 1) { | |
4293 | if (!acpi_ec_read(brightness_offset, &lec)) | |
4294 | return -EIO; | |
4295 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4296 | level = lec; | |
4297 | }; | |
4298 | if (brightness_mode & 2) { | |
4299 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4300 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4301 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4302 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4303 | level = lcmos; | |
4304 | } | |
4305 | ||
4306 | if (brightness_mode == 3 && lec != lcmos) { | |
e0c7dfe7 | 4307 | printk(TPACPI_ERR |
b21a15f6 HMH |
4308 | "CMOS NVRAM (%u) and EC (%u) do not agree " |
4309 | "on display brightness level\n", | |
4310 | (unsigned int) lcmos, | |
4311 | (unsigned int) lec); | |
4312 | return -EIO; | |
4313 | } | |
4314 | ||
4315 | return level; | |
4316 | } | |
4317 | ||
4318 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4319 | static int brightness_set(int value) | |
4320 | { | |
4321 | int cmos_cmd, inc, i, res; | |
4322 | int current_value; | |
4323 | ||
4324 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4325 | return -EINVAL; | |
4326 | ||
4327 | res = mutex_lock_interruptible(&brightness_mutex); | |
4328 | if (res < 0) | |
4329 | return res; | |
4330 | ||
4331 | current_value = brightness_get(NULL); | |
4332 | if (current_value < 0) { | |
4333 | res = current_value; | |
4334 | goto errout; | |
4335 | } | |
4336 | ||
4337 | cmos_cmd = value > current_value ? | |
4338 | TP_CMOS_BRIGHTNESS_UP : | |
4339 | TP_CMOS_BRIGHTNESS_DOWN; | |
4340 | inc = (value > current_value)? 1 : -1; | |
4341 | ||
4342 | res = 0; | |
4343 | for (i = current_value; i != value; i += inc) { | |
4344 | if ((brightness_mode & 2) && | |
4345 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4346 | res = -EIO; | |
4347 | goto errout; | |
4348 | } | |
4349 | if ((brightness_mode & 1) && | |
4350 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4351 | res = -EIO; | |
4352 | goto errout;; | |
4353 | } | |
4354 | } | |
4355 | ||
4356 | errout: | |
4357 | mutex_unlock(&brightness_mutex); | |
4358 | return res; | |
4359 | } | |
4360 | ||
4361 | /* sysfs backlight class ----------------------------------------------- */ | |
4362 | ||
4363 | static int brightness_update_status(struct backlight_device *bd) | |
4364 | { | |
4365 | /* it is the backlight class's job (caller) to handle | |
4366 | * EINTR and other errors properly */ | |
4367 | return brightness_set( | |
4368 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4369 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4370 | bd->props.brightness : 0); | |
4371 | } | |
4372 | ||
4373 | static struct backlight_ops ibm_backlight_data = { | |
35ff8b9f HMH |
4374 | .get_brightness = brightness_get, |
4375 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4376 | }; |
4377 | ||
b21a15f6 | 4378 | /* --------------------------------------------------------------------- */ |
f432255e | 4379 | |
a5763f22 | 4380 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4381 | { |
4382 | int b; | |
4383 | ||
fe08bc4b HMH |
4384 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4385 | ||
f432255e HMH |
4386 | mutex_init(&brightness_mutex); |
4387 | ||
b5972796 HMH |
4388 | /* |
4389 | * We always attempt to detect acpi support, so as to switch | |
4390 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
4391 | * going to publish a backlight interface | |
4392 | */ | |
4393 | b = tpacpi_check_std_acpi_brightness_support(); | |
4394 | if (b > 0) { | |
4395 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
4396 | printk(TPACPI_NOTICE | |
4397 | "Lenovo BIOS switched to ACPI backlight " | |
4398 | "control mode\n"); | |
4399 | } | |
4400 | if (brightness_enable > 1) { | |
e0c7dfe7 | 4401 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4402 | "standard ACPI backlight interface " |
4403 | "available, not loading native one...\n"); | |
e11e211a HMH |
4404 | return 1; |
4405 | } | |
87cc537a HMH |
4406 | } |
4407 | ||
b5972796 HMH |
4408 | if (!brightness_enable) { |
4409 | dbg_printk(TPACPI_DBG_INIT, | |
4410 | "brightness support disabled by " | |
4411 | "module parameter\n"); | |
4412 | return 1; | |
4413 | } | |
4414 | ||
4415 | if (b > 16) { | |
4416 | printk(TPACPI_ERR | |
4417 | "Unsupported brightness interface, " | |
4418 | "please contact %s\n", TPACPI_MAIL); | |
4419 | return 1; | |
4420 | } | |
4421 | if (b == 16) | |
4422 | tp_features.bright_16levels = 1; | |
4423 | ||
24d3b774 HMH |
4424 | if (!brightness_mode) { |
4425 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4426 | brightness_mode = 2; | |
4427 | else | |
4428 | brightness_mode = 3; | |
4429 | ||
4430 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4431 | brightness_mode); | |
4432 | } | |
4433 | ||
4434 | if (brightness_mode > 3) | |
4435 | return -EINVAL; | |
4436 | ||
56b6aeb0 HMH |
4437 | b = brightness_get(NULL); |
4438 | if (b < 0) | |
24d3b774 | 4439 | return 1; |
56b6aeb0 | 4440 | |
a3f104c0 | 4441 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4442 | printk(TPACPI_INFO |
4443 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4444 | |
7d5a015e HMH |
4445 | ibm_backlight_device = backlight_device_register( |
4446 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4447 | &ibm_backlight_data); | |
56b6aeb0 | 4448 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4449 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4450 | return PTR_ERR(ibm_backlight_device); |
4451 | } | |
fe08bc4b | 4452 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4453 | |
a3f104c0 HMH |
4454 | ibm_backlight_device->props.max_brightness = |
4455 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4456 | ibm_backlight_device->props.brightness = b; |
4457 | backlight_update_status(ibm_backlight_device); | |
4458 | ||
4459 | return 0; | |
4460 | } | |
4461 | ||
4462 | static void brightness_exit(void) | |
4463 | { | |
4464 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4465 | vdbg_printk(TPACPI_DBG_EXIT, |
4466 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4467 | backlight_device_unregister(ibm_backlight_device); |
4468 | ibm_backlight_device = NULL; | |
4469 | } | |
4470 | } | |
4471 | ||
56b6aeb0 HMH |
4472 | static int brightness_read(char *p) |
4473 | { | |
4474 | int len = 0; | |
4475 | int level; | |
4476 | ||
35ff8b9f HMH |
4477 | level = brightness_get(NULL); |
4478 | if (level < 0) { | |
56b6aeb0 HMH |
4479 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4480 | } else { | |
a3f104c0 | 4481 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4482 | len += sprintf(p + len, "commands:\tup, down\n"); |
4483 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4484 | " (<level> is 0-%d)\n", |
4485 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4486 | } |
4487 | ||
4488 | return len; | |
4489 | } | |
4490 | ||
8acb0250 HM |
4491 | static int brightness_write(char *buf) |
4492 | { | |
4493 | int level; | |
4273af8d | 4494 | int rc; |
1da177e4 | 4495 | char *cmd; |
a3f104c0 | 4496 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4497 | |
4273af8d HMH |
4498 | level = brightness_get(NULL); |
4499 | if (level < 0) | |
4500 | return level; | |
78f81cc4 | 4501 | |
4273af8d | 4502 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4503 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4504 | if (level < max_level) |
4505 | level++; | |
78f81cc4 | 4506 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4507 | if (level > 0) |
4508 | level--; | |
4509 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4510 | level >= 0 && level <= max_level) { | |
4511 | /* new level set */ | |
78f81cc4 BD |
4512 | } else |
4513 | return -EINVAL; | |
78f81cc4 BD |
4514 | } |
4515 | ||
4273af8d HMH |
4516 | /* |
4517 | * Now we know what the final level should be, so we try to set it. | |
4518 | * Doing it this way makes the syscall restartable in case of EINTR | |
4519 | */ | |
4520 | rc = brightness_set(level); | |
4521 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4522 | } |
4523 | ||
a5763f22 HMH |
4524 | static struct ibm_struct brightness_driver_data = { |
4525 | .name = "brightness", | |
4526 | .read = brightness_read, | |
4527 | .write = brightness_write, | |
4528 | .exit = brightness_exit, | |
4529 | }; | |
4530 | ||
56b6aeb0 HMH |
4531 | /************************************************************************* |
4532 | * Volume subdriver | |
4533 | */ | |
fb87a811 | 4534 | |
f74a27d4 HMH |
4535 | static int volume_offset = 0x30; |
4536 | ||
78f81cc4 BD |
4537 | static int volume_read(char *p) |
4538 | { | |
4539 | int len = 0; | |
4540 | u8 level; | |
4541 | ||
4542 | if (!acpi_ec_read(volume_offset, &level)) { | |
4543 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4544 | } else { | |
4545 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4546 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4547 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4548 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4549 | " (<level> is 0-15)\n"); | |
4550 | } | |
4551 | ||
4552 | return len; | |
4553 | } | |
4554 | ||
78f81cc4 BD |
4555 | static int volume_write(char *buf) |
4556 | { | |
4557 | int cmos_cmd, inc, i; | |
4558 | u8 level, mute; | |
4559 | int new_level, new_mute; | |
4560 | char *cmd; | |
4561 | ||
4562 | while ((cmd = next_cmd(&buf))) { | |
4563 | if (!acpi_ec_read(volume_offset, &level)) | |
4564 | return -EIO; | |
4565 | new_mute = mute = level & 0x40; | |
4566 | new_level = level = level & 0xf; | |
4567 | ||
4568 | if (strlencmp(cmd, "up") == 0) { | |
4569 | if (mute) | |
4570 | new_mute = 0; | |
4571 | else | |
4572 | new_level = level == 15 ? 15 : level + 1; | |
4573 | } else if (strlencmp(cmd, "down") == 0) { | |
4574 | if (mute) | |
4575 | new_mute = 0; | |
4576 | else | |
4577 | new_level = level == 0 ? 0 : level - 1; | |
4578 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4579 | new_level >= 0 && new_level <= 15) { | |
4580 | /* new_level set */ | |
4581 | } else if (strlencmp(cmd, "mute") == 0) { | |
4582 | new_mute = 0x40; | |
1da177e4 LT |
4583 | } else |
4584 | return -EINVAL; | |
4585 | ||
35ff8b9f HMH |
4586 | if (new_level != level) { |
4587 | /* mute doesn't change */ | |
4588 | ||
4589 | cmos_cmd = (new_level > level) ? | |
4590 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4591 | inc = new_level > level ? 1 : -1; |
4592 | ||
c9bea99c | 4593 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4594 | !acpi_ec_write(volume_offset, level))) |
4595 | return -EIO; | |
4596 | ||
4597 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4598 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4599 | !acpi_ec_write(volume_offset, i + inc)) |
4600 | return -EIO; | |
4601 | ||
35ff8b9f HMH |
4602 | if (mute && |
4603 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4604 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4605 | return -EIO; |
35ff8b9f | 4606 | } |
78f81cc4 BD |
4607 | } |
4608 | ||
35ff8b9f HMH |
4609 | if (new_mute != mute) { |
4610 | /* level doesn't change */ | |
4611 | ||
4612 | cmos_cmd = (new_mute) ? | |
4613 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4614 | |
c9bea99c | 4615 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4616 | !acpi_ec_write(volume_offset, level + new_mute)) |
4617 | return -EIO; | |
4618 | } | |
4619 | } | |
4620 | ||
4621 | return 0; | |
4622 | } | |
4623 | ||
a5763f22 HMH |
4624 | static struct ibm_struct volume_driver_data = { |
4625 | .name = "volume", | |
4626 | .read = volume_read, | |
4627 | .write = volume_write, | |
4628 | }; | |
56b6aeb0 HMH |
4629 | |
4630 | /************************************************************************* | |
4631 | * Fan subdriver | |
4632 | */ | |
4633 | ||
4634 | /* | |
4635 | * FAN ACCESS MODES | |
4636 | * | |
efa27145 | 4637 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4638 | * ACPI GFAN method: returns fan level |
4639 | * | |
efa27145 | 4640 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4641 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4642 | * |
efa27145 | 4643 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4644 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4645 | * | |
f51d1a39 HMH |
4646 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4647 | * it for writing. | |
56b6aeb0 | 4648 | * |
efa27145 | 4649 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4650 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4651 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4652 | * |
4653 | * Fan speed changes of any sort (including those caused by the | |
4654 | * disengaged mode) are usually done slowly by the firmware as the | |
4655 | * maximum ammount of fan duty cycle change per second seems to be | |
4656 | * limited. | |
4657 | * | |
4658 | * Reading is not available if GFAN exists. | |
4659 | * Writing is not available if SFAN exists. | |
4660 | * | |
4661 | * Bits | |
4662 | * 7 automatic mode engaged; | |
4663 | * (default operation mode of the ThinkPad) | |
4664 | * fan level is ignored in this mode. | |
f51d1a39 | 4665 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4666 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4667 | * the tachometer while the fan controller ramps up |
4668 | * the speed (which can take up to a few *minutes*). | |
4669 | * Speeds up fan to 100% duty-cycle, which is far above | |
4670 | * the standard RPM levels. It is not impossible that | |
4671 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4672 | * 5-3 unused in some models. Extra bits for fan level |
4673 | * in others, but still useless as all values above | |
4674 | * 7 map to the same speed as level 7 in these models. | |
4675 | * 2-0 fan level (0..7 usually) | |
4676 | * 0x00 = stop | |
4677 | * 0x07 = max (set when temperatures critical) | |
4678 | * Some ThinkPads may have other levels, see | |
efa27145 | 4679 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4680 | * |
4681 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4682 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4683 | * does so, its initial value is meaningless (0x07). | |
4684 | * | |
4685 | * For firmware bugs, refer to: | |
4686 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4687 | * | |
4688 | * ---- | |
4689 | * | |
4690 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4691 | * Main fan tachometer reading (in RPM) | |
4692 | * | |
4693 | * This register is present on all ThinkPads with a new-style EC, and | |
4694 | * it is known not to be present on the A21m/e, and T22, as there is | |
4695 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4696 | * ThinkPads from this same time period (and earlier) probably lack the | |
4697 | * tachometer as well. | |
4698 | * | |
4699 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4700 | * was never fixed by IBM to report the EC firmware version string | |
4701 | * probably support the tachometer (like the early X models), so | |
4702 | * detecting it is quite hard. We need more data to know for sure. | |
4703 | * | |
4704 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4705 | * might result. | |
4706 | * | |
f51d1a39 HMH |
4707 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4708 | * mode. | |
56b6aeb0 HMH |
4709 | * |
4710 | * For firmware bugs, refer to: | |
4711 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4712 | * | |
efa27145 | 4713 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4714 | * ThinkPad X31, X40, X41. Not available in the X60. |
4715 | * | |
4716 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4717 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4718 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4719 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4720 | * | |
4721 | * The speeds are stored on handles | |
4722 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4723 | * | |
4724 | * There are three default speed sets, acessible as handles: | |
4725 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4726 | * | |
4727 | * ACPI DSDT switches which set is in use depending on various | |
4728 | * factors. | |
4729 | * | |
efa27145 | 4730 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4731 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4732 | * but the ACPI tables just mention level 7. | |
4733 | */ | |
4734 | ||
f74a27d4 HMH |
4735 | enum { /* Fan control constants */ |
4736 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4737 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4738 | * 0x84 must be read before 0x85 */ | |
4739 | ||
4740 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4741 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4742 | ||
4743 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4744 | }; | |
4745 | ||
4746 | enum fan_status_access_mode { | |
4747 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4748 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4749 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4750 | }; | |
4751 | ||
4752 | enum fan_control_access_mode { | |
4753 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4754 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4755 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4756 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4757 | }; | |
4758 | ||
4759 | enum fan_control_commands { | |
4760 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4761 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4762 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4763 | * and also watchdog cmd */ | |
4764 | }; | |
4765 | ||
4766 | static int fan_control_allowed; | |
4767 | ||
69ba91cb HMH |
4768 | static enum fan_status_access_mode fan_status_access_mode; |
4769 | static enum fan_control_access_mode fan_control_access_mode; | |
4770 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4771 | |
778b4d74 | 4772 | static u8 fan_control_initial_status; |
fe98a52c | 4773 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4774 | static int fan_watchdog_maxinterval; |
4775 | ||
4776 | static struct mutex fan_mutex; | |
778b4d74 | 4777 | |
25c68a33 | 4778 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4779 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4780 | |
e0c7dfe7 HMH |
4781 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4782 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4783 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4784 | ); /* all others */ | |
e0c7dfe7 | 4785 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4786 | "JFNS", /* 770x-JL */ |
4787 | ); /* all others */ | |
4788 | ||
fe98a52c | 4789 | /* |
b21a15f6 | 4790 | * Call with fan_mutex held |
fe98a52c | 4791 | */ |
b21a15f6 | 4792 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4793 | { |
b21a15f6 HMH |
4794 | if ((status & |
4795 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4796 | if (status > 7) | |
4797 | fan_control_desired_level = 7; | |
4798 | else | |
4799 | fan_control_desired_level = status; | |
4800 | } | |
4801 | } | |
fe98a52c | 4802 | |
b21a15f6 HMH |
4803 | static int fan_get_status(u8 *status) |
4804 | { | |
4805 | u8 s; | |
fe98a52c | 4806 | |
b21a15f6 HMH |
4807 | /* TODO: |
4808 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4809 | |
b21a15f6 HMH |
4810 | switch (fan_status_access_mode) { |
4811 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4812 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4813 | |
b21a15f6 HMH |
4814 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4815 | return -EIO; | |
fe98a52c | 4816 | |
b21a15f6 HMH |
4817 | if (likely(status)) |
4818 | *status = s & 0x07; | |
fe98a52c | 4819 | |
b21a15f6 HMH |
4820 | break; |
4821 | ||
4822 | case TPACPI_FAN_RD_TPEC: | |
4823 | /* all except 570, 600e/x, 770e, 770x */ | |
4824 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4825 | return -EIO; | |
4826 | ||
4827 | if (likely(status)) | |
4828 | *status = s; | |
fe98a52c | 4829 | |
fe98a52c | 4830 | break; |
b21a15f6 | 4831 | |
fe98a52c | 4832 | default: |
b21a15f6 | 4833 | return -ENXIO; |
fe98a52c HMH |
4834 | } |
4835 | ||
b21a15f6 HMH |
4836 | return 0; |
4837 | } | |
fe98a52c | 4838 | |
b21a15f6 HMH |
4839 | static int fan_get_status_safe(u8 *status) |
4840 | { | |
4841 | int rc; | |
4842 | u8 s; | |
fe98a52c | 4843 | |
b21a15f6 HMH |
4844 | if (mutex_lock_interruptible(&fan_mutex)) |
4845 | return -ERESTARTSYS; | |
4846 | rc = fan_get_status(&s); | |
4847 | if (!rc) | |
4848 | fan_update_desired_level(s); | |
4849 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4850 | |
b21a15f6 HMH |
4851 | if (status) |
4852 | *status = s; | |
fe98a52c | 4853 | |
b21a15f6 HMH |
4854 | return rc; |
4855 | } | |
4856 | ||
4857 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4858 | { |
b21a15f6 | 4859 | u8 hi, lo; |
fe98a52c | 4860 | |
b21a15f6 HMH |
4861 | switch (fan_status_access_mode) { |
4862 | case TPACPI_FAN_RD_TPEC: | |
4863 | /* all except 570, 600e/x, 770e, 770x */ | |
4864 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4865 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4866 | return -EIO; | |
fe98a52c | 4867 | |
b21a15f6 HMH |
4868 | if (likely(speed)) |
4869 | *speed = (hi << 8) | lo; | |
fe98a52c | 4870 | |
b21a15f6 | 4871 | break; |
fe98a52c | 4872 | |
b21a15f6 HMH |
4873 | default: |
4874 | return -ENXIO; | |
4875 | } | |
fe98a52c | 4876 | |
b21a15f6 | 4877 | return 0; |
fe98a52c HMH |
4878 | } |
4879 | ||
b21a15f6 | 4880 | static int fan_set_level(int level) |
fe98a52c | 4881 | { |
b21a15f6 HMH |
4882 | if (!fan_control_allowed) |
4883 | return -EPERM; | |
fe98a52c | 4884 | |
b21a15f6 HMH |
4885 | switch (fan_control_access_mode) { |
4886 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4887 | if (level >= 0 && level <= 7) { | |
4888 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4889 | return -EIO; | |
4890 | } else | |
4891 | return -EINVAL; | |
4892 | break; | |
fe98a52c | 4893 | |
b21a15f6 HMH |
4894 | case TPACPI_FAN_WR_ACPI_FANS: |
4895 | case TPACPI_FAN_WR_TPEC: | |
4896 | if ((level != TP_EC_FAN_AUTO) && | |
4897 | (level != TP_EC_FAN_FULLSPEED) && | |
4898 | ((level < 0) || (level > 7))) | |
4899 | return -EINVAL; | |
fe98a52c | 4900 | |
b21a15f6 HMH |
4901 | /* safety net should the EC not support AUTO |
4902 | * or FULLSPEED mode bits and just ignore them */ | |
4903 | if (level & TP_EC_FAN_FULLSPEED) | |
4904 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 4905 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 4906 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 4907 | |
b21a15f6 HMH |
4908 | if (!acpi_ec_write(fan_status_offset, level)) |
4909 | return -EIO; | |
4910 | else | |
4911 | tp_features.fan_ctrl_status_undef = 0; | |
4912 | break; | |
fe98a52c | 4913 | |
b21a15f6 HMH |
4914 | default: |
4915 | return -ENXIO; | |
4916 | } | |
4917 | return 0; | |
fe98a52c HMH |
4918 | } |
4919 | ||
b21a15f6 | 4920 | static int fan_set_level_safe(int level) |
fe98a52c | 4921 | { |
b21a15f6 | 4922 | int rc; |
fe98a52c | 4923 | |
b21a15f6 HMH |
4924 | if (!fan_control_allowed) |
4925 | return -EPERM; | |
fe98a52c | 4926 | |
b21a15f6 HMH |
4927 | if (mutex_lock_interruptible(&fan_mutex)) |
4928 | return -ERESTARTSYS; | |
fe98a52c | 4929 | |
b21a15f6 HMH |
4930 | if (level == TPACPI_FAN_LAST_LEVEL) |
4931 | level = fan_control_desired_level; | |
fe98a52c | 4932 | |
b21a15f6 HMH |
4933 | rc = fan_set_level(level); |
4934 | if (!rc) | |
4935 | fan_update_desired_level(level); | |
4936 | ||
4937 | mutex_unlock(&fan_mutex); | |
4938 | return rc; | |
fe98a52c HMH |
4939 | } |
4940 | ||
b21a15f6 | 4941 | static int fan_set_enable(void) |
fe98a52c | 4942 | { |
b21a15f6 HMH |
4943 | u8 s; |
4944 | int rc; | |
fe98a52c | 4945 | |
ecf2a80a HMH |
4946 | if (!fan_control_allowed) |
4947 | return -EPERM; | |
4948 | ||
b21a15f6 HMH |
4949 | if (mutex_lock_interruptible(&fan_mutex)) |
4950 | return -ERESTARTSYS; | |
fe98a52c | 4951 | |
b21a15f6 HMH |
4952 | switch (fan_control_access_mode) { |
4953 | case TPACPI_FAN_WR_ACPI_FANS: | |
4954 | case TPACPI_FAN_WR_TPEC: | |
4955 | rc = fan_get_status(&s); | |
4956 | if (rc < 0) | |
4957 | break; | |
fe98a52c | 4958 | |
b21a15f6 HMH |
4959 | /* Don't go out of emergency fan mode */ |
4960 | if (s != 7) { | |
4961 | s &= 0x07; | |
4962 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4963 | } | |
fe98a52c | 4964 | |
b21a15f6 HMH |
4965 | if (!acpi_ec_write(fan_status_offset, s)) |
4966 | rc = -EIO; | |
4967 | else { | |
4968 | tp_features.fan_ctrl_status_undef = 0; | |
4969 | rc = 0; | |
4970 | } | |
4971 | break; | |
fe98a52c | 4972 | |
b21a15f6 HMH |
4973 | case TPACPI_FAN_WR_ACPI_SFAN: |
4974 | rc = fan_get_status(&s); | |
4975 | if (rc < 0) | |
4976 | break; | |
fe98a52c | 4977 | |
b21a15f6 | 4978 | s &= 0x07; |
fe98a52c | 4979 | |
b21a15f6 HMH |
4980 | /* Set fan to at least level 4 */ |
4981 | s |= 4; | |
fe08bc4b | 4982 | |
b21a15f6 | 4983 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 4984 | rc = -EIO; |
b21a15f6 HMH |
4985 | else |
4986 | rc = 0; | |
4987 | break; | |
78f81cc4 | 4988 | |
b21a15f6 HMH |
4989 | default: |
4990 | rc = -ENXIO; | |
4991 | } | |
5fba344c | 4992 | |
b21a15f6 HMH |
4993 | mutex_unlock(&fan_mutex); |
4994 | return rc; | |
69ba91cb | 4995 | } |
78f81cc4 | 4996 | |
b21a15f6 | 4997 | static int fan_set_disable(void) |
78f81cc4 | 4998 | { |
b21a15f6 | 4999 | int rc; |
c52f0aa5 | 5000 | |
b21a15f6 HMH |
5001 | if (!fan_control_allowed) |
5002 | return -EPERM; | |
78f81cc4 | 5003 | |
b21a15f6 HMH |
5004 | if (mutex_lock_interruptible(&fan_mutex)) |
5005 | return -ERESTARTSYS; | |
3ef8a609 | 5006 | |
b21a15f6 HMH |
5007 | rc = 0; |
5008 | switch (fan_control_access_mode) { | |
5009 | case TPACPI_FAN_WR_ACPI_FANS: | |
5010 | case TPACPI_FAN_WR_TPEC: | |
5011 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
5012 | rc = -EIO; | |
5013 | else { | |
5014 | fan_control_desired_level = 0; | |
5015 | tp_features.fan_ctrl_status_undef = 0; | |
5016 | } | |
3ef8a609 HMH |
5017 | break; |
5018 | ||
b21a15f6 HMH |
5019 | case TPACPI_FAN_WR_ACPI_SFAN: |
5020 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
5021 | rc = -EIO; | |
5022 | else | |
5023 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
5024 | break; |
5025 | ||
5026 | default: | |
b21a15f6 | 5027 | rc = -ENXIO; |
78f81cc4 BD |
5028 | } |
5029 | ||
fe98a52c | 5030 | |
fe98a52c | 5031 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5032 | return rc; |
5033 | } | |
5034 | ||
b21a15f6 | 5035 | static int fan_set_speed(int speed) |
c52f0aa5 | 5036 | { |
b21a15f6 | 5037 | int rc; |
c52f0aa5 | 5038 | |
b21a15f6 HMH |
5039 | if (!fan_control_allowed) |
5040 | return -EPERM; | |
3ef8a609 | 5041 | |
b21a15f6 HMH |
5042 | if (mutex_lock_interruptible(&fan_mutex)) |
5043 | return -ERESTARTSYS; | |
c52f0aa5 | 5044 | |
b21a15f6 HMH |
5045 | rc = 0; |
5046 | switch (fan_control_access_mode) { | |
5047 | case TPACPI_FAN_WR_ACPI_FANS: | |
5048 | if (speed >= 0 && speed <= 65535) { | |
5049 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5050 | speed, speed, speed)) | |
5051 | rc = -EIO; | |
5052 | } else | |
5053 | rc = -EINVAL; | |
c52f0aa5 HMH |
5054 | break; |
5055 | ||
5056 | default: | |
b21a15f6 | 5057 | rc = -ENXIO; |
c52f0aa5 HMH |
5058 | } |
5059 | ||
b21a15f6 HMH |
5060 | mutex_unlock(&fan_mutex); |
5061 | return rc; | |
16663a87 HMH |
5062 | } |
5063 | ||
5064 | static void fan_watchdog_reset(void) | |
5065 | { | |
94954cc6 | 5066 | static int fan_watchdog_active; |
16663a87 | 5067 | |
4985cd0a HMH |
5068 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5069 | return; | |
5070 | ||
16663a87 HMH |
5071 | if (fan_watchdog_active) |
5072 | cancel_delayed_work(&fan_watchdog_task); | |
5073 | ||
8fef502e HMH |
5074 | if (fan_watchdog_maxinterval > 0 && |
5075 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
5076 | fan_watchdog_active = 1; |
5077 | if (!schedule_delayed_work(&fan_watchdog_task, | |
5078 | msecs_to_jiffies(fan_watchdog_maxinterval | |
5079 | * 1000))) { | |
35ff8b9f HMH |
5080 | printk(TPACPI_ERR |
5081 | "failed to schedule the fan watchdog, " | |
16663a87 HMH |
5082 | "watchdog will not trigger\n"); |
5083 | } | |
5084 | } else | |
5085 | fan_watchdog_active = 0; | |
5086 | } | |
5087 | ||
b21a15f6 | 5088 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5089 | { |
b21a15f6 | 5090 | int rc; |
18ad7996 | 5091 | |
b21a15f6 HMH |
5092 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5093 | return; | |
a12095c2 | 5094 | |
e0c7dfe7 | 5095 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5096 | rc = fan_set_enable(); |
5097 | if (rc < 0) { | |
e0c7dfe7 | 5098 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5099 | "will try again later...\n", -rc); |
5100 | /* reschedule for later */ | |
5101 | fan_watchdog_reset(); | |
5102 | } | |
5103 | } | |
eaa7571b | 5104 | |
b21a15f6 HMH |
5105 | /* |
5106 | * SYSFS fan layout: hwmon compatible (device) | |
5107 | * | |
5108 | * pwm*_enable: | |
5109 | * 0: "disengaged" mode | |
5110 | * 1: manual mode | |
5111 | * 2: native EC "auto" mode (recommended, hardware default) | |
5112 | * | |
5113 | * pwm*: set speed in manual mode, ignored otherwise. | |
5114 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5115 | * interpolation. | |
5116 | * | |
5117 | * fan*_input: tachometer reading, RPM | |
5118 | * | |
5119 | * | |
5120 | * SYSFS fan layout: extensions | |
5121 | * | |
5122 | * fan_watchdog (driver): | |
5123 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5124 | */ | |
5125 | ||
5126 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5127 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5128 | struct device_attribute *attr, | |
5129 | char *buf) | |
5130 | { | |
5131 | int res, mode; | |
5132 | u8 status; | |
5133 | ||
5134 | res = fan_get_status_safe(&status); | |
5135 | if (res) | |
5136 | return res; | |
5137 | ||
5138 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5139 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5140 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5141 | } else { |
5142 | /* Return most likely status. In fact, it | |
5143 | * might be the only possible status */ | |
5144 | status = TP_EC_FAN_AUTO; | |
5145 | } | |
5146 | } | |
5147 | ||
5148 | if (status & TP_EC_FAN_FULLSPEED) { | |
5149 | mode = 0; | |
5150 | } else if (status & TP_EC_FAN_AUTO) { | |
5151 | mode = 2; | |
5152 | } else | |
5153 | mode = 1; | |
5154 | ||
5155 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5156 | } | |
a12095c2 | 5157 | |
b21a15f6 HMH |
5158 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5159 | struct device_attribute *attr, | |
5160 | const char *buf, size_t count) | |
5161 | { | |
5162 | unsigned long t; | |
5163 | int res, level; | |
5164 | ||
5165 | if (parse_strtoul(buf, 2, &t)) | |
5166 | return -EINVAL; | |
5167 | ||
5168 | switch (t) { | |
5169 | case 0: | |
5170 | level = TP_EC_FAN_FULLSPEED; | |
5171 | break; | |
5172 | case 1: | |
5173 | level = TPACPI_FAN_LAST_LEVEL; | |
5174 | break; | |
5175 | case 2: | |
5176 | level = TP_EC_FAN_AUTO; | |
5177 | break; | |
5178 | case 3: | |
5179 | /* reserved for software-controlled auto mode */ | |
5180 | return -ENOSYS; | |
18ad7996 | 5181 | default: |
b21a15f6 | 5182 | return -EINVAL; |
18ad7996 | 5183 | } |
b21a15f6 HMH |
5184 | |
5185 | res = fan_set_level_safe(level); | |
5186 | if (res == -ENXIO) | |
5187 | return -EINVAL; | |
5188 | else if (res < 0) | |
5189 | return res; | |
5190 | ||
5191 | fan_watchdog_reset(); | |
5192 | ||
5193 | return count; | |
18ad7996 HMH |
5194 | } |
5195 | ||
b21a15f6 HMH |
5196 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5197 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5198 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5199 | ||
5200 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5201 | static ssize_t fan_pwm1_show(struct device *dev, | |
5202 | struct device_attribute *attr, | |
5203 | char *buf) | |
fe98a52c | 5204 | { |
b21a15f6 HMH |
5205 | int res; |
5206 | u8 status; | |
fe98a52c | 5207 | |
b21a15f6 HMH |
5208 | res = fan_get_status_safe(&status); |
5209 | if (res) | |
5210 | return res; | |
ecf2a80a | 5211 | |
b21a15f6 HMH |
5212 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5213 | if (status != fan_control_initial_status) { | |
5214 | tp_features.fan_ctrl_status_undef = 0; | |
5215 | } else { | |
5216 | status = TP_EC_FAN_AUTO; | |
5217 | } | |
5218 | } | |
fe98a52c | 5219 | |
b21a15f6 HMH |
5220 | if ((status & |
5221 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5222 | status = fan_control_desired_level; | |
fe98a52c | 5223 | |
b21a15f6 HMH |
5224 | if (status > 7) |
5225 | status = 7; | |
fe98a52c | 5226 | |
b21a15f6 | 5227 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5228 | } |
5229 | ||
b21a15f6 HMH |
5230 | static ssize_t fan_pwm1_store(struct device *dev, |
5231 | struct device_attribute *attr, | |
5232 | const char *buf, size_t count) | |
18ad7996 | 5233 | { |
b21a15f6 | 5234 | unsigned long s; |
1c6a334e | 5235 | int rc; |
b21a15f6 | 5236 | u8 status, newlevel; |
1c6a334e | 5237 | |
b21a15f6 HMH |
5238 | if (parse_strtoul(buf, 255, &s)) |
5239 | return -EINVAL; | |
5240 | ||
5241 | /* scale down from 0-255 to 0-7 */ | |
5242 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5243 | |
fc589a3c HMH |
5244 | if (mutex_lock_interruptible(&fan_mutex)) |
5245 | return -ERESTARTSYS; | |
40ca9fdf | 5246 | |
b21a15f6 HMH |
5247 | rc = fan_get_status(&status); |
5248 | if (!rc && (status & | |
5249 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5250 | rc = fan_set_level(newlevel); | |
5251 | if (rc == -ENXIO) | |
5252 | rc = -EINVAL; | |
5253 | else if (!rc) { | |
5254 | fan_update_desired_level(newlevel); | |
5255 | fan_watchdog_reset(); | |
eaa7571b | 5256 | } |
b21a15f6 | 5257 | } |
1c6a334e | 5258 | |
b21a15f6 HMH |
5259 | mutex_unlock(&fan_mutex); |
5260 | return (rc)? rc : count; | |
5261 | } | |
1c6a334e | 5262 | |
b21a15f6 HMH |
5263 | static struct device_attribute dev_attr_fan_pwm1 = |
5264 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5265 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5266 | |
b21a15f6 HMH |
5267 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5268 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5269 | struct device_attribute *attr, | |
5270 | char *buf) | |
5271 | { | |
5272 | int res; | |
5273 | unsigned int speed; | |
1c6a334e | 5274 | |
b21a15f6 HMH |
5275 | res = fan_get_speed(&speed); |
5276 | if (res < 0) | |
5277 | return res; | |
1c6a334e | 5278 | |
b21a15f6 HMH |
5279 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5280 | } | |
18ad7996 | 5281 | |
b21a15f6 HMH |
5282 | static struct device_attribute dev_attr_fan_fan1_input = |
5283 | __ATTR(fan1_input, S_IRUGO, | |
5284 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5285 | |
b21a15f6 HMH |
5286 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5287 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5288 | char *buf) | |
5289 | { | |
5290 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5291 | } |
5292 | ||
b21a15f6 HMH |
5293 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5294 | const char *buf, size_t count) | |
18ad7996 | 5295 | { |
b21a15f6 HMH |
5296 | unsigned long t; |
5297 | ||
5298 | if (parse_strtoul(buf, 120, &t)) | |
5299 | return -EINVAL; | |
40ca9fdf | 5300 | |
ecf2a80a HMH |
5301 | if (!fan_control_allowed) |
5302 | return -EPERM; | |
5303 | ||
b21a15f6 HMH |
5304 | fan_watchdog_maxinterval = t; |
5305 | fan_watchdog_reset(); | |
40ca9fdf | 5306 | |
b21a15f6 HMH |
5307 | return count; |
5308 | } | |
5309 | ||
5310 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5311 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5312 | ||
5313 | /* --------------------------------------------------------------------- */ | |
5314 | static struct attribute *fan_attributes[] = { | |
5315 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5316 | &dev_attr_fan_fan1_input.attr, | |
5317 | NULL | |
5318 | }; | |
5319 | ||
5320 | static const struct attribute_group fan_attr_group = { | |
5321 | .attrs = fan_attributes, | |
5322 | }; | |
5323 | ||
5324 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5325 | { | |
5326 | int rc; | |
5327 | ||
5328 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5329 | ||
5330 | mutex_init(&fan_mutex); | |
5331 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5332 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5333 | fan_control_commands = 0; | |
5334 | fan_watchdog_maxinterval = 0; | |
5335 | tp_features.fan_ctrl_status_undef = 0; | |
5336 | fan_control_desired_level = 7; | |
5337 | ||
e0c7dfe7 HMH |
5338 | TPACPI_ACPIHANDLE_INIT(fans); |
5339 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5340 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5341 | |
5342 | if (gfan_handle) { | |
5343 | /* 570, 600e/x, 770e, 770x */ | |
5344 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5345 | } else { | |
5346 | /* all other ThinkPads: note that even old-style | |
5347 | * ThinkPad ECs supports the fan control register */ | |
5348 | if (likely(acpi_ec_read(fan_status_offset, | |
5349 | &fan_control_initial_status))) { | |
5350 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5351 | ||
5352 | /* In some ThinkPads, neither the EC nor the ACPI | |
5353 | * DSDT initialize the fan status, and it ends up | |
5354 | * being set to 0x07 when it *could* be either | |
5355 | * 0x07 or 0x80. | |
5356 | * | |
5357 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5358 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5359 | * to be buggy. */ | |
5360 | if (fan_control_initial_status == 0x07) { | |
5361 | switch (thinkpad_id.ec_model) { | |
5362 | case 0x5931: /* TP-1Y */ | |
5363 | case 0x3837: /* TP-78 */ | |
5364 | case 0x3637: /* TP-76 */ | |
5365 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5366 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5367 | "fan_init: initial fan status " |
5368 | "is unknown, assuming it is " | |
5369 | "in auto mode\n"); | |
b21a15f6 HMH |
5370 | tp_features.fan_ctrl_status_undef = 1; |
5371 | ;; | |
5372 | } | |
5373 | } | |
5374 | } else { | |
e0c7dfe7 | 5375 | printk(TPACPI_ERR |
b21a15f6 HMH |
5376 | "ThinkPad ACPI EC access misbehaving, " |
5377 | "fan status and control unavailable\n"); | |
5378 | return 1; | |
5379 | } | |
5380 | } | |
5381 | ||
5382 | if (sfan_handle) { | |
5383 | /* 570, 770x-JL */ | |
5384 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5385 | fan_control_commands |= | |
5386 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5387 | } else { | |
5388 | if (!gfan_handle) { | |
5389 | /* gfan without sfan means no fan control */ | |
5390 | /* all other models implement TP EC 0x2f control */ | |
5391 | ||
5392 | if (fans_handle) { | |
5393 | /* X31, X40, X41 */ | |
5394 | fan_control_access_mode = | |
5395 | TPACPI_FAN_WR_ACPI_FANS; | |
5396 | fan_control_commands |= | |
5397 | TPACPI_FAN_CMD_SPEED | | |
5398 | TPACPI_FAN_CMD_LEVEL | | |
5399 | TPACPI_FAN_CMD_ENABLE; | |
5400 | } else { | |
5401 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5402 | fan_control_commands |= | |
5403 | TPACPI_FAN_CMD_LEVEL | | |
5404 | TPACPI_FAN_CMD_ENABLE; | |
5405 | } | |
fe98a52c | 5406 | } |
b21a15f6 | 5407 | } |
18ad7996 | 5408 | |
b21a15f6 HMH |
5409 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5410 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5411 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5412 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5413 | |
b21a15f6 HMH |
5414 | /* fan control master switch */ |
5415 | if (!fan_control_allowed) { | |
5416 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5417 | fan_control_commands = 0; | |
5418 | dbg_printk(TPACPI_DBG_INIT, | |
5419 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5420 | } |
40ca9fdf | 5421 | |
b21a15f6 HMH |
5422 | /* update fan_control_desired_level */ |
5423 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5424 | fan_get_status_safe(NULL); | |
fe98a52c | 5425 | |
b21a15f6 HMH |
5426 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5427 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5428 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5429 | &fan_attr_group); | |
5430 | if (!(rc < 0)) | |
5431 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5432 | &driver_attr_fan_watchdog); | |
5433 | if (rc < 0) | |
5434 | return rc; | |
5435 | return 0; | |
5436 | } else | |
5437 | return 1; | |
56b6aeb0 HMH |
5438 | } |
5439 | ||
b21a15f6 | 5440 | static void fan_exit(void) |
56b6aeb0 | 5441 | { |
35ff8b9f HMH |
5442 | vdbg_printk(TPACPI_DBG_EXIT, |
5443 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5444 | |
b21a15f6 HMH |
5445 | /* FIXME: can we really do this unconditionally? */ |
5446 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5447 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5448 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5449 | |
b21a15f6 HMH |
5450 | cancel_delayed_work(&fan_watchdog_task); |
5451 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5452 | } |
5453 | ||
5454 | static int fan_read(char *p) | |
5455 | { | |
5456 | int len = 0; | |
5457 | int rc; | |
5458 | u8 status; | |
5459 | unsigned int speed = 0; | |
5460 | ||
5461 | switch (fan_status_access_mode) { | |
efa27145 | 5462 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5463 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5464 | rc = fan_get_status_safe(&status); |
5465 | if (rc < 0) | |
56b6aeb0 HMH |
5466 | return rc; |
5467 | ||
5468 | len += sprintf(p + len, "status:\t\t%s\n" | |
5469 | "level:\t\t%d\n", | |
5470 | (status != 0) ? "enabled" : "disabled", status); | |
5471 | break; | |
5472 | ||
efa27145 | 5473 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5474 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5475 | rc = fan_get_status_safe(&status); |
5476 | if (rc < 0) | |
56b6aeb0 HMH |
5477 | return rc; |
5478 | ||
d8fd94d9 | 5479 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5480 | if (status != fan_control_initial_status) |
d8fd94d9 | 5481 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5482 | else |
5483 | /* Return most likely status. In fact, it | |
5484 | * might be the only possible status */ | |
efa27145 | 5485 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5486 | } |
5487 | ||
5488 | len += sprintf(p + len, "status:\t\t%s\n", | |
5489 | (status != 0) ? "enabled" : "disabled"); | |
5490 | ||
35ff8b9f HMH |
5491 | rc = fan_get_speed(&speed); |
5492 | if (rc < 0) | |
56b6aeb0 HMH |
5493 | return rc; |
5494 | ||
5495 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5496 | ||
efa27145 | 5497 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5498 | /* Disengaged mode takes precedence */ |
5499 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5500 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5501 | len += sprintf(p + len, "level:\t\tauto\n"); |
5502 | else | |
5503 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5504 | break; | |
5505 | ||
efa27145 | 5506 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5507 | default: |
5508 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5509 | } | |
5510 | ||
efa27145 | 5511 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5512 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5513 | ||
5514 | switch (fan_control_access_mode) { | |
efa27145 | 5515 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5516 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5517 | break; | |
5518 | ||
5519 | default: | |
5520 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5521 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5522 | break; |
5523 | } | |
5524 | } | |
18ad7996 | 5525 | |
efa27145 | 5526 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5527 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5528 | "commands:\twatchdog <timeout> (<timeout> " |
5529 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5530 | |
efa27145 | 5531 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5532 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5533 | " (<speed> is 0-65535)\n"); | |
5534 | ||
5535 | return len; | |
78f81cc4 BD |
5536 | } |
5537 | ||
18ad7996 HMH |
5538 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5539 | { | |
5540 | int level; | |
5541 | ||
a12095c2 | 5542 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5543 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5544 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5545 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5546 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5547 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5548 | return 0; |
5549 | ||
35ff8b9f HMH |
5550 | *rc = fan_set_level_safe(level); |
5551 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5552 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5553 | "access mode %d", fan_control_access_mode); |
5554 | ||
5555 | return 1; | |
5556 | } | |
5557 | ||
5558 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5559 | { | |
5560 | if (strlencmp(cmd, "enable") != 0) | |
5561 | return 0; | |
5562 | ||
35ff8b9f HMH |
5563 | *rc = fan_set_enable(); |
5564 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5565 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5566 | "access mode %d", fan_control_access_mode); |
5567 | ||
5568 | return 1; | |
5569 | } | |
5570 | ||
5571 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5572 | { | |
5573 | if (strlencmp(cmd, "disable") != 0) | |
5574 | return 0; | |
5575 | ||
35ff8b9f HMH |
5576 | *rc = fan_set_disable(); |
5577 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5578 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5579 | "access mode %d", fan_control_access_mode); |
5580 | ||
5581 | return 1; | |
5582 | } | |
5583 | ||
5584 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5585 | { | |
5586 | int speed; | |
5587 | ||
a8b7a662 HMH |
5588 | /* TODO: |
5589 | * Support speed <low> <medium> <high> ? */ | |
5590 | ||
18ad7996 HMH |
5591 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5592 | return 0; | |
5593 | ||
35ff8b9f HMH |
5594 | *rc = fan_set_speed(speed); |
5595 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5596 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5597 | "access mode %d", fan_control_access_mode); |
5598 | ||
5599 | return 1; | |
5600 | } | |
5601 | ||
16663a87 HMH |
5602 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5603 | { | |
5604 | int interval; | |
5605 | ||
5606 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5607 | return 0; | |
5608 | ||
5609 | if (interval < 0 || interval > 120) | |
5610 | *rc = -EINVAL; | |
5611 | else | |
5612 | fan_watchdog_maxinterval = interval; | |
5613 | ||
5614 | return 1; | |
5615 | } | |
5616 | ||
18ad7996 HMH |
5617 | static int fan_write(char *buf) |
5618 | { | |
5619 | char *cmd; | |
5620 | int rc = 0; | |
5621 | ||
5622 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5623 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5624 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5625 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5626 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5627 | fan_write_cmd_disable(cmd, &rc) || |
5628 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5629 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5630 | fan_write_cmd_speed(cmd, &rc)) |
5631 | ) | |
5632 | rc = -EINVAL; | |
16663a87 HMH |
5633 | else if (!rc) |
5634 | fan_watchdog_reset(); | |
18ad7996 HMH |
5635 | } |
5636 | ||
5637 | return rc; | |
5638 | } | |
5639 | ||
a5763f22 HMH |
5640 | static struct ibm_struct fan_driver_data = { |
5641 | .name = "fan", | |
5642 | .read = fan_read, | |
5643 | .write = fan_write, | |
5644 | .exit = fan_exit, | |
a5763f22 HMH |
5645 | }; |
5646 | ||
56b6aeb0 HMH |
5647 | /**************************************************************************** |
5648 | **************************************************************************** | |
5649 | * | |
5650 | * Infrastructure | |
5651 | * | |
5652 | **************************************************************************** | |
5653 | ****************************************************************************/ | |
5654 | ||
7fd40029 HMH |
5655 | /* sysfs name ---------------------------------------------------------- */ |
5656 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5657 | struct device_attribute *attr, | |
5658 | char *buf) | |
5659 | { | |
e0c7dfe7 | 5660 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5661 | } |
5662 | ||
5663 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5664 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5665 | ||
5666 | /* --------------------------------------------------------------------- */ | |
5667 | ||
56b6aeb0 | 5668 | /* /proc support */ |
94954cc6 | 5669 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5670 | |
56b6aeb0 HMH |
5671 | /* |
5672 | * Module and infrastructure proble, init and exit handling | |
5673 | */ | |
1da177e4 | 5674 | |
b21a15f6 HMH |
5675 | static int force_load; |
5676 | ||
fe08bc4b | 5677 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5678 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5679 | { |
a5763f22 | 5680 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5681 | |
a5763f22 | 5682 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5683 | } |
5684 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5685 | ||
b21a15f6 HMH |
5686 | static void ibm_exit(struct ibm_struct *ibm) |
5687 | { | |
5688 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5689 | ||
5690 | list_del_init(&ibm->all_drivers); | |
5691 | ||
5692 | if (ibm->flags.acpi_notify_installed) { | |
5693 | dbg_printk(TPACPI_DBG_EXIT, | |
5694 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5695 | BUG_ON(!ibm->acpi); | |
5696 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5697 | ibm->acpi->type, | |
5698 | dispatch_acpi_notify); | |
5699 | ibm->flags.acpi_notify_installed = 0; | |
5700 | ibm->flags.acpi_notify_installed = 0; | |
5701 | } | |
5702 | ||
5703 | if (ibm->flags.proc_created) { | |
5704 | dbg_printk(TPACPI_DBG_EXIT, | |
5705 | "%s: remove_proc_entry\n", ibm->name); | |
5706 | remove_proc_entry(ibm->name, proc_dir); | |
5707 | ibm->flags.proc_created = 0; | |
5708 | } | |
5709 | ||
5710 | if (ibm->flags.acpi_driver_registered) { | |
5711 | dbg_printk(TPACPI_DBG_EXIT, | |
5712 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5713 | BUG_ON(!ibm->acpi); | |
5714 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5715 | kfree(ibm->acpi->driver); | |
5716 | ibm->acpi->driver = NULL; | |
5717 | ibm->flags.acpi_driver_registered = 0; | |
5718 | } | |
5719 | ||
5720 | if (ibm->flags.init_called && ibm->exit) { | |
5721 | ibm->exit(); | |
5722 | ibm->flags.init_called = 0; | |
5723 | } | |
5724 | ||
5725 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5726 | } | |
f74a27d4 | 5727 | |
a5763f22 | 5728 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5729 | { |
5730 | int ret; | |
a5763f22 | 5731 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5732 | struct proc_dir_entry *entry; |
5733 | ||
a5763f22 HMH |
5734 | BUG_ON(ibm == NULL); |
5735 | ||
5736 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5737 | ||
92641177 | 5738 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5739 | return 0; |
5740 | ||
fe08bc4b HMH |
5741 | dbg_printk(TPACPI_DBG_INIT, |
5742 | "probing for %s\n", ibm->name); | |
5743 | ||
a5763f22 HMH |
5744 | if (iibm->init) { |
5745 | ret = iibm->init(iibm); | |
5fba344c HMH |
5746 | if (ret > 0) |
5747 | return 0; /* probe failed */ | |
5748 | if (ret) | |
1da177e4 | 5749 | return ret; |
a5763f22 | 5750 | |
92641177 | 5751 | ibm->flags.init_called = 1; |
1da177e4 LT |
5752 | } |
5753 | ||
8d376cd6 HMH |
5754 | if (ibm->acpi) { |
5755 | if (ibm->acpi->hid) { | |
5756 | ret = register_tpacpi_subdriver(ibm); | |
5757 | if (ret) | |
5758 | goto err_out; | |
5759 | } | |
5fba344c | 5760 | |
8d376cd6 HMH |
5761 | if (ibm->acpi->notify) { |
5762 | ret = setup_acpi_notify(ibm); | |
5763 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5764 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5765 | ibm->name); |
5766 | ret = 0; | |
5767 | goto err_out; | |
5768 | } | |
5769 | if (ret < 0) | |
5770 | goto err_out; | |
5fba344c | 5771 | } |
5fba344c HMH |
5772 | } |
5773 | ||
fe08bc4b HMH |
5774 | dbg_printk(TPACPI_DBG_INIT, |
5775 | "%s installed\n", ibm->name); | |
5776 | ||
78f81cc4 BD |
5777 | if (ibm->read) { |
5778 | entry = create_proc_entry(ibm->name, | |
5779 | S_IFREG | S_IRUGO | S_IWUSR, | |
5780 | proc_dir); | |
5781 | if (!entry) { | |
e0c7dfe7 | 5782 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5783 | ibm->name); |
5fba344c HMH |
5784 | ret = -ENODEV; |
5785 | goto err_out; | |
78f81cc4 BD |
5786 | } |
5787 | entry->owner = THIS_MODULE; | |
5788 | entry->data = ibm; | |
8d376cd6 | 5789 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5790 | if (ibm->write) |
8d376cd6 | 5791 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5792 | ibm->flags.proc_created = 1; |
78f81cc4 | 5793 | } |
1da177e4 | 5794 | |
a5763f22 HMH |
5795 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5796 | ||
1da177e4 | 5797 | return 0; |
5fba344c HMH |
5798 | |
5799 | err_out: | |
fe08bc4b HMH |
5800 | dbg_printk(TPACPI_DBG_INIT, |
5801 | "%s: at error exit path with result %d\n", | |
5802 | ibm->name, ret); | |
5803 | ||
5fba344c HMH |
5804 | ibm_exit(ibm); |
5805 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5806 | } |
5807 | ||
56b6aeb0 HMH |
5808 | /* Probing */ |
5809 | ||
d5a2f2f1 | 5810 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5811 | { |
1855256c | 5812 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5813 | char ec_fw_string[18]; |
1da177e4 | 5814 | |
d5a2f2f1 HMH |
5815 | if (!tp) |
5816 | return; | |
5817 | ||
5818 | memset(tp, 0, sizeof(*tp)); | |
5819 | ||
5820 | if (dmi_name_in_vendors("IBM")) | |
5821 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5822 | else if (dmi_name_in_vendors("LENOVO")) | |
5823 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5824 | else | |
5825 | return; | |
5826 | ||
5827 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5828 | GFP_KERNEL); | |
5829 | if (!tp->bios_version_str) | |
5830 | return; | |
5831 | tp->bios_model = tp->bios_version_str[0] | |
5832 | | (tp->bios_version_str[1] << 8); | |
5833 | ||
56b6aeb0 HMH |
5834 | /* |
5835 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5836 | * X32 or newer, all Z series; Some models must have an | |
5837 | * up-to-date BIOS or they will not be detected. | |
5838 | * | |
5839 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5840 | */ | |
5841 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5842 | if (sscanf(dev->name, | |
5843 | "IBM ThinkPad Embedded Controller -[%17c", | |
5844 | ec_fw_string) == 1) { | |
5845 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5846 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5847 | |
5848 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5849 | tp->ec_model = ec_fw_string[0] | |
5850 | | (ec_fw_string[1] << 8); | |
5851 | break; | |
78f81cc4 | 5852 | } |
1da177e4 | 5853 | } |
d5a2f2f1 HMH |
5854 | |
5855 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5856 | GFP_KERNEL); | |
5857 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5858 | kfree(tp->model_str); | |
5859 | tp->model_str = NULL; | |
5860 | } | |
1da177e4 LT |
5861 | } |
5862 | ||
5fba344c HMH |
5863 | static int __init probe_for_thinkpad(void) |
5864 | { | |
5865 | int is_thinkpad; | |
5866 | ||
5867 | if (acpi_disabled) | |
5868 | return -ENODEV; | |
5869 | ||
5870 | /* | |
5871 | * Non-ancient models have better DMI tagging, but very old models | |
5872 | * don't. | |
5873 | */ | |
d5a2f2f1 | 5874 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5875 | |
5876 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 5877 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5878 | if (!ec_handle) { |
5879 | if (is_thinkpad) | |
e0c7dfe7 | 5880 | printk(TPACPI_ERR |
5fba344c HMH |
5881 | "Not yet supported ThinkPad detected!\n"); |
5882 | return -ENODEV; | |
5883 | } | |
5884 | ||
0dcef77c HMH |
5885 | /* |
5886 | * Risks a regression on very old machines, but reduces potential | |
5887 | * false positives a damn great deal | |
5888 | */ | |
5889 | if (!is_thinkpad) | |
d5a2f2f1 | 5890 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5891 | |
5892 | if (!is_thinkpad && !force_load) | |
5893 | return -ENODEV; | |
5894 | ||
5fba344c HMH |
5895 | return 0; |
5896 | } | |
5897 | ||
5898 | ||
56b6aeb0 | 5899 | /* Module init, exit, parameters */ |
1da177e4 | 5900 | |
a5763f22 HMH |
5901 | static struct ibm_init_struct ibms_init[] __initdata = { |
5902 | { | |
5903 | .init = thinkpad_acpi_driver_init, | |
5904 | .data = &thinkpad_acpi_driver_data, | |
5905 | }, | |
5906 | { | |
5907 | .init = hotkey_init, | |
5908 | .data = &hotkey_driver_data, | |
5909 | }, | |
5910 | { | |
5911 | .init = bluetooth_init, | |
5912 | .data = &bluetooth_driver_data, | |
5913 | }, | |
5914 | { | |
5915 | .init = wan_init, | |
5916 | .data = &wan_driver_data, | |
5917 | }, | |
d7c1d17d | 5918 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
5919 | { |
5920 | .init = video_init, | |
5921 | .data = &video_driver_data, | |
5922 | }, | |
d7c1d17d | 5923 | #endif |
a5763f22 HMH |
5924 | { |
5925 | .init = light_init, | |
5926 | .data = &light_driver_data, | |
5927 | }, | |
5928 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5929 | { | |
5930 | .init = dock_init, | |
5931 | .data = &dock_driver_data[0], | |
5932 | }, | |
5933 | { | |
d94a7f16 | 5934 | .init = dock_init2, |
a5763f22 HMH |
5935 | .data = &dock_driver_data[1], |
5936 | }, | |
5937 | #endif | |
5938 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5939 | { | |
5940 | .init = bay_init, | |
5941 | .data = &bay_driver_data, | |
5942 | }, | |
5943 | #endif | |
5944 | { | |
5945 | .init = cmos_init, | |
5946 | .data = &cmos_driver_data, | |
5947 | }, | |
5948 | { | |
5949 | .init = led_init, | |
5950 | .data = &led_driver_data, | |
5951 | }, | |
5952 | { | |
5953 | .init = beep_init, | |
5954 | .data = &beep_driver_data, | |
5955 | }, | |
5956 | { | |
5957 | .init = thermal_init, | |
5958 | .data = &thermal_driver_data, | |
5959 | }, | |
5960 | { | |
5961 | .data = &ecdump_driver_data, | |
5962 | }, | |
5963 | { | |
5964 | .init = brightness_init, | |
5965 | .data = &brightness_driver_data, | |
5966 | }, | |
5967 | { | |
5968 | .data = &volume_driver_data, | |
5969 | }, | |
5970 | { | |
5971 | .init = fan_init, | |
5972 | .data = &fan_driver_data, | |
5973 | }, | |
5974 | }; | |
5975 | ||
3945ac36 | 5976 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5977 | { |
5978 | unsigned int i; | |
a5763f22 | 5979 | struct ibm_struct *ibm; |
1da177e4 | 5980 | |
59f91ff1 HMH |
5981 | if (!kp || !kp->name || !val) |
5982 | return -EINVAL; | |
5983 | ||
a5763f22 HMH |
5984 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5985 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5986 | WARN_ON(ibm == NULL); |
5987 | ||
5988 | if (!ibm || !ibm->name) | |
5989 | continue; | |
a5763f22 HMH |
5990 | |
5991 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5992 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5993 | return -ENOSPC; |
a5763f22 HMH |
5994 | strcpy(ibms_init[i].param, val); |
5995 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5996 | return 0; |
5997 | } | |
a5763f22 | 5998 | } |
1da177e4 | 5999 | |
1da177e4 LT |
6000 | return -EINVAL; |
6001 | } | |
6002 | ||
56b6aeb0 | 6003 | module_param(experimental, int, 0); |
f68080f8 | 6004 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 6005 | "Enables experimental features when non-zero"); |
56b6aeb0 | 6006 | |
132ce091 | 6007 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 6008 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 6009 | |
86cc9445 | 6010 | module_param(force_load, bool, 0); |
f68080f8 | 6011 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
6012 | "Attempts to load the driver even on a " |
6013 | "mis-identified ThinkPad when true"); | |
0dcef77c | 6014 | |
86cc9445 | 6015 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 6016 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 6017 | "Enables setting fan parameters features when true"); |
ecf2a80a | 6018 | |
24d3b774 | 6019 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 6020 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
6021 | "Selects brightness control strategy: " |
6022 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 6023 | |
87cc537a | 6024 | module_param(brightness_enable, uint, 0); |
f68080f8 | 6025 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 6026 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 6027 | |
ff80f137 | 6028 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6029 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6030 | "used for backwards compatibility with userspace, " |
6031 | "see documentation"); | |
ff80f137 | 6032 | |
e0c7dfe7 | 6033 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6034 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6035 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6036 | "at module load, see documentation") |
1da177e4 | 6037 | |
e0c7dfe7 HMH |
6038 | TPACPI_PARAM(hotkey); |
6039 | TPACPI_PARAM(bluetooth); | |
6040 | TPACPI_PARAM(video); | |
6041 | TPACPI_PARAM(light); | |
85998248 | 6042 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6043 | TPACPI_PARAM(dock); |
63e5f248 | 6044 | #endif |
85998248 | 6045 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6046 | TPACPI_PARAM(bay); |
85998248 | 6047 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6048 | TPACPI_PARAM(cmos); |
6049 | TPACPI_PARAM(led); | |
6050 | TPACPI_PARAM(beep); | |
6051 | TPACPI_PARAM(ecdump); | |
6052 | TPACPI_PARAM(brightness); | |
6053 | TPACPI_PARAM(volume); | |
6054 | TPACPI_PARAM(fan); | |
78f81cc4 | 6055 | |
b21a15f6 HMH |
6056 | static void thinkpad_acpi_module_exit(void) |
6057 | { | |
6058 | struct ibm_struct *ibm, *itmp; | |
6059 | ||
6060 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6061 | ||
6062 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6063 | &tpacpi_all_drivers, | |
6064 | all_drivers) { | |
6065 | ibm_exit(ibm); | |
6066 | } | |
6067 | ||
6068 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6069 | ||
6070 | if (tpacpi_inputdev) { | |
6071 | if (tp_features.input_device_registered) | |
6072 | input_unregister_device(tpacpi_inputdev); | |
6073 | else | |
6074 | input_free_device(tpacpi_inputdev); | |
6075 | } | |
6076 | ||
6077 | if (tpacpi_hwmon) | |
6078 | hwmon_device_unregister(tpacpi_hwmon); | |
6079 | ||
6080 | if (tp_features.sensors_pdev_attrs_registered) | |
6081 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6082 | &dev_attr_thinkpad_acpi_pdev_name); | |
6083 | if (tpacpi_sensors_pdev) | |
6084 | platform_device_unregister(tpacpi_sensors_pdev); | |
6085 | if (tpacpi_pdev) | |
6086 | platform_device_unregister(tpacpi_pdev); | |
6087 | ||
6088 | if (tp_features.sensors_pdrv_attrs_registered) | |
6089 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6090 | if (tp_features.platform_drv_attrs_registered) | |
6091 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6092 | ||
6093 | if (tp_features.sensors_pdrv_registered) | |
6094 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6095 | ||
6096 | if (tp_features.platform_drv_registered) | |
6097 | platform_driver_unregister(&tpacpi_pdriver); | |
6098 | ||
6099 | if (proc_dir) | |
e0c7dfe7 | 6100 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
6101 | |
6102 | kfree(thinkpad_id.bios_version_str); | |
6103 | kfree(thinkpad_id.ec_version_str); | |
6104 | kfree(thinkpad_id.model_str); | |
6105 | } | |
6106 | ||
f74a27d4 | 6107 | |
1def7115 | 6108 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6109 | { |
6110 | int ret, i; | |
6111 | ||
8fef502e HMH |
6112 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6113 | ||
ff80f137 HMH |
6114 | /* Parameter checking */ |
6115 | if (hotkey_report_mode > 2) | |
6116 | return -EINVAL; | |
6117 | ||
54ae1501 | 6118 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6119 | |
6120 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6121 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6122 | if (ret) { |
6123 | thinkpad_acpi_module_exit(); | |
5fba344c | 6124 | return ret; |
d5a2f2f1 | 6125 | } |
1da177e4 | 6126 | |
54ae1501 | 6127 | /* Driver initialization */ |
d5a2f2f1 | 6128 | |
e0c7dfe7 HMH |
6129 | TPACPI_ACPIHANDLE_INIT(ecrd); |
6130 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6131 | |
e0c7dfe7 | 6132 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 6133 | if (!proc_dir) { |
35ff8b9f HMH |
6134 | printk(TPACPI_ERR |
6135 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 6136 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6137 | return -ENODEV; |
6138 | } | |
6139 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6140 | |
54ae1501 HMH |
6141 | ret = platform_driver_register(&tpacpi_pdriver); |
6142 | if (ret) { | |
35ff8b9f HMH |
6143 | printk(TPACPI_ERR |
6144 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
6145 | thinkpad_acpi_module_exit(); |
6146 | return ret; | |
6147 | } | |
ac36393d HMH |
6148 | tp_features.platform_drv_registered = 1; |
6149 | ||
7fd40029 HMH |
6150 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6151 | if (ret) { | |
35ff8b9f HMH |
6152 | printk(TPACPI_ERR |
6153 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
6154 | thinkpad_acpi_module_exit(); |
6155 | return ret; | |
6156 | } | |
6157 | tp_features.sensors_pdrv_registered = 1; | |
6158 | ||
176750d6 | 6159 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6160 | if (!ret) { |
6161 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
6162 | ret = tpacpi_create_driver_attributes( |
6163 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 6164 | } |
176750d6 | 6165 | if (ret) { |
35ff8b9f HMH |
6166 | printk(TPACPI_ERR |
6167 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
6168 | thinkpad_acpi_module_exit(); |
6169 | return ret; | |
6170 | } | |
2369cc94 | 6171 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6172 | |
54ae1501 HMH |
6173 | |
6174 | /* Device initialization */ | |
e0c7dfe7 | 6175 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
6176 | NULL, 0); |
6177 | if (IS_ERR(tpacpi_pdev)) { | |
6178 | ret = PTR_ERR(tpacpi_pdev); | |
6179 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 6180 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
6181 | thinkpad_acpi_module_exit(); |
6182 | return ret; | |
6183 | } | |
7fd40029 | 6184 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
6185 | TPACPI_HWMON_DRVR_NAME, |
6186 | -1, NULL, 0); | |
7fd40029 HMH |
6187 | if (IS_ERR(tpacpi_sensors_pdev)) { |
6188 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6189 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
6190 | printk(TPACPI_ERR |
6191 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
6192 | thinkpad_acpi_module_exit(); |
6193 | return ret; | |
6194 | } | |
6195 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6196 | &dev_attr_thinkpad_acpi_pdev_name); | |
6197 | if (ret) { | |
e0c7dfe7 | 6198 | printk(TPACPI_ERR |
35ff8b9f | 6199 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
6200 | thinkpad_acpi_module_exit(); |
6201 | return ret; | |
6202 | } | |
6203 | tp_features.sensors_pdev_attrs_registered = 1; | |
6204 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6205 | if (IS_ERR(tpacpi_hwmon)) { |
6206 | ret = PTR_ERR(tpacpi_hwmon); | |
6207 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 6208 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
6209 | thinkpad_acpi_module_exit(); |
6210 | return ret; | |
6211 | } | |
8523ed6f | 6212 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6213 | tpacpi_inputdev = input_allocate_device(); |
6214 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 6215 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
6216 | thinkpad_acpi_module_exit(); |
6217 | return -ENOMEM; | |
6218 | } else { | |
6219 | /* Prepare input device, but don't register */ | |
6220 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 6221 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 6222 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
6223 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6224 | thinkpad_id.vendor : | |
6225 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6226 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6227 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6228 | } | |
a5763f22 HMH |
6229 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6230 | ret = ibm_init(&ibms_init[i]); | |
6231 | if (ret >= 0 && *ibms_init[i].param) | |
6232 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6233 | if (ret < 0) { |
1def7115 | 6234 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6235 | return ret; |
6236 | } | |
6237 | } | |
7f5d1cd6 HMH |
6238 | ret = input_register_device(tpacpi_inputdev); |
6239 | if (ret < 0) { | |
e0c7dfe7 | 6240 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6241 | thinkpad_acpi_module_exit(); |
6242 | return ret; | |
6243 | } else { | |
6244 | tp_features.input_device_registered = 1; | |
6245 | } | |
1da177e4 | 6246 | |
8fef502e | 6247 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6248 | return 0; |
6249 | } | |
6250 | ||
f68080f8 HMH |
6251 | /* Please remove this in year 2009 */ |
6252 | MODULE_ALIAS("ibm_acpi"); | |
6253 | ||
6254 | /* | |
6255 | * DMI matching for module autoloading | |
6256 | * | |
6257 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6258 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6259 | * | |
6260 | * Only models listed in thinkwiki will be supported, so add yours | |
6261 | * if it is not there yet. | |
6262 | */ | |
6263 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6264 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6265 | ||
6266 | /* Non-ancient thinkpads */ | |
6267 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6268 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6269 | ||
6270 | /* Ancient thinkpad BIOSes have to be identified by | |
6271 | * BIOS type or model number, and there are far less | |
6272 | * BIOS types than model numbers... */ | |
6273 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6274 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6275 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6276 | ||
6277 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6278 | MODULE_DESCRIPTION(TPACPI_DESC); |
6279 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6280 | MODULE_LICENSE("GPL"); |
6281 | ||
1def7115 HMH |
6282 | module_init(thinkpad_acpi_module_init); |
6283 | module_exit(thinkpad_acpi_module_exit); |