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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 | ||
92889022 HMH |
240 | static struct { |
241 | u16 hotkey_mask_ff:1; | |
242 | } tp_warned; | |
243 | ||
0c78039f HMH |
244 | struct thinkpad_id_data { |
245 | unsigned int vendor; /* ThinkPad vendor: | |
246 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
247 | ||
248 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
249 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
250 | ||
251 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
252 | u16 ec_model; | |
253 | ||
254 | char *model_str; | |
255 | }; | |
0c78039f HMH |
256 | static struct thinkpad_id_data thinkpad_id; |
257 | ||
8fef502e HMH |
258 | static enum { |
259 | TPACPI_LIFE_INIT = 0, | |
260 | TPACPI_LIFE_RUNNING, | |
261 | TPACPI_LIFE_EXITING, | |
262 | } tpacpi_lifecycle; | |
263 | ||
b21a15f6 HMH |
264 | static int experimental; |
265 | static u32 dbg_level; | |
266 | ||
56b6aeb0 HMH |
267 | /**************************************************************************** |
268 | **************************************************************************** | |
269 | * | |
270 | * ACPI Helpers and device model | |
271 | * | |
272 | **************************************************************************** | |
273 | ****************************************************************************/ | |
274 | ||
275 | /************************************************************************* | |
276 | * ACPI basic handles | |
277 | */ | |
1da177e4 | 278 | |
94954cc6 | 279 | static acpi_handle root_handle; |
1da177e4 | 280 | |
e0c7dfe7 | 281 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
282 | static acpi_handle object##_handle; \ |
283 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 284 | static char *object##_path; \ |
1da177e4 LT |
285 | static char *object##_paths[] = { paths } |
286 | ||
e0c7dfe7 | 287 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
288 | "\\_SB.PCI.ISA.EC", /* 570 */ |
289 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
290 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
291 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
292 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
293 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 294 | ); |
78f81cc4 | 295 | |
e0c7dfe7 HMH |
296 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
297 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 298 | |
35ff8b9f HMH |
299 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
300 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
301 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
302 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 303 | ); /* all others */ |
78f81cc4 | 304 | |
e0c7dfe7 | 305 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
306 | "^HKEY", /* R30, R31 */ |
307 | "HKEY", /* all others */ | |
56b6aeb0 | 308 | ); /* 570 */ |
78f81cc4 | 309 | |
d7c1d17d HMH |
310 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
311 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
312 | "\\_SB.PCI0.VID0", /* 770e */ | |
313 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
314 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
315 | ); /* R30, R31 */ | |
316 | ||
78f81cc4 | 317 | |
56b6aeb0 HMH |
318 | /************************************************************************* |
319 | * ACPI helpers | |
a8b7a662 HMH |
320 | */ |
321 | ||
1da177e4 LT |
322 | static int acpi_evalf(acpi_handle handle, |
323 | void *res, char *method, char *fmt, ...) | |
324 | { | |
325 | char *fmt0 = fmt; | |
78f81cc4 | 326 | struct acpi_object_list params; |
e0c7dfe7 | 327 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
328 | struct acpi_buffer result, *resultp; |
329 | union acpi_object out_obj; | |
330 | acpi_status status; | |
331 | va_list ap; | |
332 | char res_type; | |
333 | int success; | |
334 | int quiet; | |
1da177e4 LT |
335 | |
336 | if (!*fmt) { | |
e0c7dfe7 | 337 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
338 | return 0; |
339 | } | |
340 | ||
341 | if (*fmt == 'q') { | |
342 | quiet = 1; | |
343 | fmt++; | |
344 | } else | |
345 | quiet = 0; | |
346 | ||
347 | res_type = *(fmt++); | |
348 | ||
349 | params.count = 0; | |
350 | params.pointer = &in_objs[0]; | |
351 | ||
352 | va_start(ap, fmt); | |
353 | while (*fmt) { | |
354 | char c = *(fmt++); | |
355 | switch (c) { | |
356 | case 'd': /* int */ | |
357 | in_objs[params.count].integer.value = va_arg(ap, int); | |
358 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
359 | break; | |
78f81cc4 | 360 | /* add more types as needed */ |
1da177e4 | 361 | default: |
e0c7dfe7 | 362 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
363 | "with invalid format character '%c'\n", c); |
364 | return 0; | |
365 | } | |
366 | } | |
367 | va_end(ap); | |
368 | ||
78f81cc4 BD |
369 | if (res_type != 'v') { |
370 | result.length = sizeof(out_obj); | |
371 | result.pointer = &out_obj; | |
372 | resultp = &result; | |
373 | } else | |
374 | resultp = NULL; | |
1da177e4 | 375 | |
78f81cc4 | 376 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
377 | |
378 | switch (res_type) { | |
78f81cc4 | 379 | case 'd': /* int */ |
1da177e4 LT |
380 | if (res) |
381 | *(int *)res = out_obj.integer.value; | |
382 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
383 | break; | |
78f81cc4 | 384 | case 'v': /* void */ |
1da177e4 LT |
385 | success = status == AE_OK; |
386 | break; | |
78f81cc4 | 387 | /* add more types as needed */ |
1da177e4 | 388 | default: |
e0c7dfe7 | 389 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
390 | "with invalid format character '%c'\n", res_type); |
391 | return 0; | |
392 | } | |
393 | ||
56b6aeb0 | 394 | if (!success && !quiet) |
e0c7dfe7 | 395 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
396 | method, fmt0, status); |
397 | ||
398 | return success; | |
399 | } | |
400 | ||
35ff8b9f | 401 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
402 | { |
403 | int v; | |
404 | ||
405 | if (ecrd_handle) { | |
406 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
407 | return 0; | |
408 | *p = v; | |
409 | } else { | |
410 | if (ec_read(i, p) < 0) | |
411 | return 0; | |
412 | } | |
413 | ||
414 | return 1; | |
415 | } | |
416 | ||
417 | static int acpi_ec_write(int i, u8 v) | |
418 | { | |
419 | if (ecwr_handle) { | |
420 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
421 | return 0; | |
422 | } else { | |
423 | if (ec_write(i, v) < 0) | |
424 | return 0; | |
425 | } | |
426 | ||
427 | return 1; | |
428 | } | |
429 | ||
013c40e4 | 430 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
431 | static int _sta(acpi_handle handle) |
432 | { | |
433 | int status; | |
434 | ||
435 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
436 | status = 0; | |
437 | ||
438 | return status; | |
439 | } | |
013c40e4 | 440 | #endif |
56b6aeb0 | 441 | |
c9bea99c HMH |
442 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
443 | { | |
444 | if (!cmos_handle) | |
445 | return -ENXIO; | |
446 | ||
447 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
448 | return -EIO; | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
56b6aeb0 HMH |
453 | /************************************************************************* |
454 | * ACPI device model | |
455 | */ | |
456 | ||
35ff8b9f HMH |
457 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
458 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
459 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
460 | ||
8d376cd6 | 461 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
462 | acpi_handle *handle, acpi_handle parent, |
463 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
464 | { |
465 | int i; | |
466 | acpi_status status; | |
467 | ||
5ae930e6 HMH |
468 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
469 | name); | |
470 | ||
56b6aeb0 HMH |
471 | for (i = 0; i < num_paths; i++) { |
472 | status = acpi_get_handle(parent, paths[i], handle); | |
473 | if (ACPI_SUCCESS(status)) { | |
474 | *path = paths[i]; | |
5ae930e6 HMH |
475 | dbg_printk(TPACPI_DBG_INIT, |
476 | "Found ACPI handle %s for %s\n", | |
477 | *path, name); | |
56b6aeb0 HMH |
478 | return; |
479 | } | |
480 | } | |
481 | ||
5ae930e6 HMH |
482 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
483 | name); | |
56b6aeb0 HMH |
484 | *handle = NULL; |
485 | } | |
486 | ||
8d376cd6 | 487 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
488 | { |
489 | struct ibm_struct *ibm = data; | |
490 | ||
8fef502e HMH |
491 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
492 | return; | |
493 | ||
8d376cd6 | 494 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
495 | return; |
496 | ||
8d376cd6 | 497 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
498 | } |
499 | ||
8d376cd6 | 500 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
501 | { |
502 | acpi_status status; | |
5ae930e6 | 503 | int rc; |
56b6aeb0 | 504 | |
8d376cd6 HMH |
505 | BUG_ON(!ibm->acpi); |
506 | ||
507 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
508 | return 0; |
509 | ||
5ae930e6 | 510 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
511 | "setting up ACPI notify for %s\n", ibm->name); |
512 | ||
5ae930e6 HMH |
513 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
514 | if (rc < 0) { | |
e0c7dfe7 | 515 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 516 | ibm->name, rc); |
56b6aeb0 HMH |
517 | return -ENODEV; |
518 | } | |
519 | ||
8d376cd6 HMH |
520 | acpi_driver_data(ibm->acpi->device) = ibm; |
521 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 522 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 523 | ibm->name); |
56b6aeb0 | 524 | |
8d376cd6 HMH |
525 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
526 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
527 | if (ACPI_FAILURE(status)) { |
528 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
529 | printk(TPACPI_NOTICE |
530 | "another device driver is already " | |
531 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 532 | } else { |
35ff8b9f HMH |
533 | printk(TPACPI_ERR |
534 | "acpi_install_notify_handler(%s) failed: %d\n", | |
535 | ibm->name, status); | |
56b6aeb0 HMH |
536 | } |
537 | return -ENODEV; | |
538 | } | |
8d376cd6 | 539 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
540 | return 0; |
541 | } | |
542 | ||
8d376cd6 | 543 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
544 | { |
545 | return 0; | |
546 | } | |
547 | ||
6700121b | 548 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 549 | { |
5ae930e6 | 550 | int rc; |
56b6aeb0 | 551 | |
fe08bc4b HMH |
552 | dbg_printk(TPACPI_DBG_INIT, |
553 | "registering %s as an ACPI driver\n", ibm->name); | |
554 | ||
8d376cd6 HMH |
555 | BUG_ON(!ibm->acpi); |
556 | ||
557 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
558 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 559 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 560 | return -ENOMEM; |
56b6aeb0 HMH |
561 | } |
562 | ||
e0c7dfe7 | 563 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 564 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 565 | |
8d376cd6 | 566 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 567 | |
5ae930e6 HMH |
568 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
569 | if (rc < 0) { | |
e0c7dfe7 | 570 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 571 | ibm->name, rc); |
8d376cd6 HMH |
572 | kfree(ibm->acpi->driver); |
573 | ibm->acpi->driver = NULL; | |
5ae930e6 | 574 | } else if (!rc) |
8d376cd6 | 575 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 576 | |
5ae930e6 | 577 | return rc; |
56b6aeb0 HMH |
578 | } |
579 | ||
580 | ||
581 | /**************************************************************************** | |
582 | **************************************************************************** | |
583 | * | |
584 | * Procfs Helpers | |
585 | * | |
586 | **************************************************************************** | |
587 | ****************************************************************************/ | |
588 | ||
8d376cd6 HMH |
589 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
590 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
591 | { |
592 | struct ibm_struct *ibm = data; | |
593 | int len; | |
594 | ||
595 | if (!ibm || !ibm->read) | |
596 | return -EINVAL; | |
597 | ||
598 | len = ibm->read(page); | |
599 | if (len < 0) | |
600 | return len; | |
601 | ||
602 | if (len <= off + count) | |
603 | *eof = 1; | |
604 | *start = page + off; | |
605 | len -= off; | |
606 | if (len > count) | |
607 | len = count; | |
608 | if (len < 0) | |
609 | len = 0; | |
610 | ||
611 | return len; | |
612 | } | |
613 | ||
8d376cd6 | 614 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 615 | const char __user *userbuf, |
8d376cd6 | 616 | unsigned long count, void *data) |
56b6aeb0 HMH |
617 | { |
618 | struct ibm_struct *ibm = data; | |
619 | char *kernbuf; | |
620 | int ret; | |
621 | ||
622 | if (!ibm || !ibm->write) | |
623 | return -EINVAL; | |
624 | ||
625 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
626 | if (!kernbuf) | |
627 | return -ENOMEM; | |
1da177e4 | 628 | |
56b6aeb0 HMH |
629 | if (copy_from_user(kernbuf, userbuf, count)) { |
630 | kfree(kernbuf); | |
631 | return -EFAULT; | |
632 | } | |
1da177e4 | 633 | |
56b6aeb0 HMH |
634 | kernbuf[count] = 0; |
635 | strcat(kernbuf, ","); | |
636 | ret = ibm->write(kernbuf); | |
637 | if (ret == 0) | |
638 | ret = count; | |
1da177e4 | 639 | |
56b6aeb0 HMH |
640 | kfree(kernbuf); |
641 | ||
642 | return ret; | |
1da177e4 LT |
643 | } |
644 | ||
645 | static char *next_cmd(char **cmds) | |
646 | { | |
647 | char *start = *cmds; | |
648 | char *end; | |
649 | ||
650 | while ((end = strchr(start, ',')) && end == start) | |
651 | start = end + 1; | |
652 | ||
653 | if (!end) | |
654 | return NULL; | |
655 | ||
656 | *end = 0; | |
657 | *cmds = end + 1; | |
658 | return start; | |
659 | } | |
660 | ||
56b6aeb0 | 661 | |
54ae1501 HMH |
662 | /**************************************************************************** |
663 | **************************************************************************** | |
664 | * | |
7f5d1cd6 | 665 | * Device model: input, hwmon and platform |
54ae1501 HMH |
666 | * |
667 | **************************************************************************** | |
668 | ****************************************************************************/ | |
669 | ||
94954cc6 | 670 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 671 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 672 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 673 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 674 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 675 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 676 | |
083f1760 HMH |
677 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
678 | pm_message_t state) | |
679 | { | |
680 | struct ibm_struct *ibm, *itmp; | |
681 | ||
682 | list_for_each_entry_safe(ibm, itmp, | |
683 | &tpacpi_all_drivers, | |
684 | all_drivers) { | |
685 | if (ibm->suspend) | |
686 | (ibm->suspend)(state); | |
687 | } | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
e295e850 HMH |
692 | static int tpacpi_resume_handler(struct platform_device *pdev) |
693 | { | |
694 | struct ibm_struct *ibm, *itmp; | |
695 | ||
696 | list_for_each_entry_safe(ibm, itmp, | |
697 | &tpacpi_all_drivers, | |
698 | all_drivers) { | |
699 | if (ibm->resume) | |
700 | (ibm->resume)(); | |
701 | } | |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
54ae1501 HMH |
706 | static struct platform_driver tpacpi_pdriver = { |
707 | .driver = { | |
e0c7dfe7 | 708 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
709 | .owner = THIS_MODULE, |
710 | }, | |
083f1760 | 711 | .suspend = tpacpi_suspend_handler, |
e295e850 | 712 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
713 | }; |
714 | ||
7fd40029 HMH |
715 | static struct platform_driver tpacpi_hwmon_pdriver = { |
716 | .driver = { | |
e0c7dfe7 | 717 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
718 | .owner = THIS_MODULE, |
719 | }, | |
720 | }; | |
54ae1501 | 721 | |
176750d6 | 722 | /************************************************************************* |
b21a15f6 | 723 | * sysfs support helpers |
176750d6 HMH |
724 | */ |
725 | ||
b21a15f6 HMH |
726 | struct attribute_set { |
727 | unsigned int members, max_members; | |
728 | struct attribute_group group; | |
176750d6 HMH |
729 | }; |
730 | ||
7252374a HMH |
731 | struct attribute_set_obj { |
732 | struct attribute_set s; | |
733 | struct attribute *a; | |
734 | } __attribute__((packed)); | |
735 | ||
736 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 737 | const char *name) |
7252374a HMH |
738 | { |
739 | struct attribute_set_obj *sobj; | |
740 | ||
741 | if (max_members == 0) | |
742 | return NULL; | |
743 | ||
744 | /* Allocates space for implicit NULL at the end too */ | |
745 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
746 | max_members * sizeof(struct attribute *), | |
747 | GFP_KERNEL); | |
748 | if (!sobj) | |
749 | return NULL; | |
750 | sobj->s.max_members = max_members; | |
751 | sobj->s.group.attrs = &sobj->a; | |
752 | sobj->s.group.name = name; | |
753 | ||
754 | return &sobj->s; | |
755 | } | |
756 | ||
f74a27d4 HMH |
757 | #define destroy_attr_set(_set) \ |
758 | kfree(_set); | |
759 | ||
7252374a | 760 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 761 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
762 | { |
763 | if (!s || !attr) | |
764 | return -EINVAL; | |
765 | ||
766 | if (s->members >= s->max_members) | |
767 | return -ENOMEM; | |
768 | ||
769 | s->group.attrs[s->members] = attr; | |
770 | s->members++; | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
35ff8b9f | 775 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
776 | struct attribute **attr, |
777 | unsigned int count) | |
778 | { | |
779 | int i, res; | |
780 | ||
781 | for (i = 0; i < count; i++) { | |
782 | res = add_to_attr_set(s, attr[i]); | |
783 | if (res) | |
784 | return res; | |
785 | } | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
35ff8b9f | 790 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
791 | { |
792 | sysfs_remove_group(kobj, &s->group); | |
793 | destroy_attr_set(s); | |
794 | } | |
795 | ||
f74a27d4 HMH |
796 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
797 | sysfs_create_group(_kobj, &_attr_set->group) | |
798 | ||
7252374a HMH |
799 | static int parse_strtoul(const char *buf, |
800 | unsigned long max, unsigned long *value) | |
801 | { | |
802 | char *endp; | |
803 | ||
32afbf07 HMH |
804 | while (*buf && isspace(*buf)) |
805 | buf++; | |
7252374a HMH |
806 | *value = simple_strtoul(buf, &endp, 0); |
807 | while (*endp && isspace(*endp)) | |
808 | endp++; | |
809 | if (*endp || *value > max) | |
810 | return -EINVAL; | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
b5972796 HMH |
815 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
816 | { | |
817 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
818 | union acpi_object *obj; | |
819 | int rc; | |
820 | ||
821 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
822 | obj = (union acpi_object *)buffer.pointer; | |
823 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
824 | printk(TPACPI_ERR "Unknown _BCL data, " | |
825 | "please report this to %s\n", TPACPI_MAIL); | |
826 | rc = 0; | |
827 | } else { | |
828 | rc = obj->package.count; | |
829 | } | |
830 | } else { | |
831 | return 0; | |
832 | } | |
833 | ||
834 | kfree(buffer.pointer); | |
835 | return rc; | |
836 | } | |
837 | ||
838 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
839 | u32 lvl, void *context, void **rv) | |
840 | { | |
841 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
842 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
843 | ||
844 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
845 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
846 | BUG_ON(!rv || !*rv); | |
847 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
848 | return AE_CTRL_TERMINATE; | |
849 | } else { | |
850 | return AE_OK; | |
851 | } | |
852 | } | |
853 | ||
854 | /* | |
855 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
856 | */ | |
857 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
858 | { | |
859 | int status; | |
860 | int bcl_levels = 0; | |
861 | void *bcl_ptr = &bcl_levels; | |
862 | ||
863 | if (!vid_handle) { | |
864 | TPACPI_ACPIHANDLE_INIT(vid); | |
865 | } | |
866 | if (!vid_handle) | |
867 | return 0; | |
868 | ||
869 | /* | |
870 | * Search for a _BCL method, and execute it. This is safe on all | |
871 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
872 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
873 | * about calling the _BCL method in an enabled video device, any | |
874 | * will do for our purposes. | |
875 | */ | |
876 | ||
877 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
878 | tpacpi_acpi_walk_find_bcl, NULL, | |
879 | &bcl_ptr); | |
880 | ||
881 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
882 | tp_features.bright_acpimode = 1; | |
883 | return (bcl_levels - 2); | |
884 | } | |
885 | ||
886 | return 0; | |
887 | } | |
888 | ||
56b6aeb0 | 889 | /************************************************************************* |
b21a15f6 | 890 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
891 | */ |
892 | ||
b21a15f6 HMH |
893 | /* interface_version --------------------------------------------------- */ |
894 | static ssize_t tpacpi_driver_interface_version_show( | |
895 | struct device_driver *drv, | |
896 | char *buf) | |
1da177e4 | 897 | { |
b21a15f6 HMH |
898 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
899 | } | |
900 | ||
901 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
902 | tpacpi_driver_interface_version_show, NULL); | |
903 | ||
904 | /* debug_level --------------------------------------------------------- */ | |
905 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
906 | char *buf) | |
907 | { | |
908 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
909 | } | |
910 | ||
911 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
912 | const char *buf, size_t count) | |
913 | { | |
914 | unsigned long t; | |
915 | ||
916 | if (parse_strtoul(buf, 0xffff, &t)) | |
917 | return -EINVAL; | |
918 | ||
919 | dbg_level = t; | |
920 | ||
921 | return count; | |
922 | } | |
923 | ||
924 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
925 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
926 | ||
927 | /* version ------------------------------------------------------------- */ | |
928 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
929 | char *buf) | |
930 | { | |
35ff8b9f HMH |
931 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
932 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
933 | } |
934 | ||
935 | static DRIVER_ATTR(version, S_IRUGO, | |
936 | tpacpi_driver_version_show, NULL); | |
937 | ||
938 | /* --------------------------------------------------------------------- */ | |
939 | ||
35ff8b9f | 940 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
941 | &driver_attr_debug_level, &driver_attr_version, |
942 | &driver_attr_interface_version, | |
943 | }; | |
944 | ||
945 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
946 | { | |
947 | int i, res; | |
948 | ||
949 | i = 0; | |
950 | res = 0; | |
951 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
952 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
953 | i++; | |
954 | } | |
955 | ||
956 | return res; | |
957 | } | |
958 | ||
959 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
960 | { | |
961 | int i; | |
962 | ||
35ff8b9f | 963 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
964 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
965 | } | |
966 | ||
967 | /**************************************************************************** | |
968 | **************************************************************************** | |
969 | * | |
970 | * Subdrivers | |
971 | * | |
972 | **************************************************************************** | |
973 | ****************************************************************************/ | |
974 | ||
975 | /************************************************************************* | |
976 | * thinkpad-acpi init subdriver | |
977 | */ | |
978 | ||
979 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
980 | { | |
e0c7dfe7 HMH |
981 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
982 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 983 | |
e0c7dfe7 | 984 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
985 | (thinkpad_id.bios_version_str) ? |
986 | thinkpad_id.bios_version_str : "unknown", | |
987 | (thinkpad_id.ec_version_str) ? | |
988 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
989 | |
990 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
e0c7dfe7 | 991 | printk(TPACPI_INFO "%s %s\n", |
d5a2f2f1 HMH |
992 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
993 | "IBM" : ((thinkpad_id.vendor == | |
994 | PCI_VENDOR_ID_LENOVO) ? | |
995 | "Lenovo" : "Unknown vendor"), | |
996 | thinkpad_id.model_str); | |
3945ac36 | 997 | |
1da177e4 LT |
998 | return 0; |
999 | } | |
1000 | ||
643f12db | 1001 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1002 | { |
1003 | int len = 0; | |
1004 | ||
e0c7dfe7 HMH |
1005 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1006 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1007 | |
1008 | return len; | |
1009 | } | |
1010 | ||
a5763f22 HMH |
1011 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1012 | .name = "driver", | |
1013 | .read = thinkpad_acpi_driver_read, | |
1014 | }; | |
1015 | ||
56b6aeb0 HMH |
1016 | /************************************************************************* |
1017 | * Hotkey subdriver | |
1018 | */ | |
1019 | ||
f74a27d4 HMH |
1020 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1021 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1022 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1023 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1024 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1025 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1026 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1027 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1028 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1029 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1030 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1031 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1032 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1033 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1034 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1035 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1036 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1037 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1038 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1039 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1040 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1041 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1042 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1043 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1044 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1045 | }; | |
1046 | ||
01e88f25 HMH |
1047 | enum { /* Keys available through NVRAM polling */ |
1048 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1049 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1050 | }; | |
1051 | ||
1052 | enum { /* Positions of some of the keys in hotkey masks */ | |
1053 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1054 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1055 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1056 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1057 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1058 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1059 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1060 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1061 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1062 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1063 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1064 | }; | |
1065 | ||
1066 | enum { /* NVRAM to ACPI HKEY group map */ | |
1067 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1068 | TP_ACPI_HKEY_ZOOM_MASK | | |
1069 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1070 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1071 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1072 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1073 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1074 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1075 | TP_ACPI_HKEY_MUTE_MASK, | |
1076 | }; | |
1077 | ||
1078 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1079 | struct tp_nvram_state { | |
1080 | u16 thinkpad_toggle:1; | |
1081 | u16 zoom_toggle:1; | |
1082 | u16 display_toggle:1; | |
1083 | u16 thinklight_toggle:1; | |
1084 | u16 hibernate_toggle:1; | |
1085 | u16 displayexp_toggle:1; | |
1086 | u16 display_state:1; | |
1087 | u16 brightness_toggle:1; | |
1088 | u16 volume_toggle:1; | |
1089 | u16 mute:1; | |
1090 | ||
1091 | u8 brightness_level; | |
1092 | u8 volume_level; | |
1093 | }; | |
1094 | ||
1095 | static struct task_struct *tpacpi_hotkey_task; | |
1096 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1097 | static int hotkey_poll_freq = 10; /* Hz */ | |
1098 | static struct mutex hotkey_thread_mutex; | |
1099 | static struct mutex hotkey_thread_data_mutex; | |
1100 | static unsigned int hotkey_config_change; | |
1101 | ||
1102 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1103 | ||
1104 | #define hotkey_source_mask 0U | |
1105 | ||
1106 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1107 | ||
f74a27d4 HMH |
1108 | static struct mutex hotkey_mutex; |
1109 | ||
a713b4d7 HMH |
1110 | static enum { /* Reasons for waking up */ |
1111 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1112 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1113 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1114 | } hotkey_wakeup_reason; | |
1115 | ||
1116 | static int hotkey_autosleep_ack; | |
1117 | ||
78f81cc4 | 1118 | static int hotkey_orig_status; |
ae92bd17 | 1119 | static u32 hotkey_orig_mask; |
9b010de5 | 1120 | static u32 hotkey_all_mask; |
6a38abbf | 1121 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1122 | static u32 hotkey_mask; |
6a38abbf | 1123 | |
b21a15f6 HMH |
1124 | static unsigned int hotkey_report_mode; |
1125 | ||
edf0e0e5 | 1126 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1127 | |
94954cc6 | 1128 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1129 | |
01e88f25 HMH |
1130 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1131 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1132 | do { \ |
1133 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1134 | hotkey_config_change++; \ | |
1135 | } while (0); | |
01e88f25 HMH |
1136 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1137 | mutex_unlock(&hotkey_thread_data_mutex); | |
1138 | #else | |
1139 | #define HOTKEY_CONFIG_CRITICAL_START | |
1140 | #define HOTKEY_CONFIG_CRITICAL_END | |
1141 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1142 | ||
6c231bd5 HMH |
1143 | /* HKEY.MHKG() return bits */ |
1144 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1145 | ||
74941a69 HMH |
1146 | static int hotkey_get_wlsw(int *status) |
1147 | { | |
1148 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1149 | return -EIO; | |
1150 | return 0; | |
1151 | } | |
1152 | ||
6c231bd5 HMH |
1153 | static int hotkey_get_tablet_mode(int *status) |
1154 | { | |
1155 | int s; | |
1156 | ||
1157 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1158 | return -EIO; | |
1159 | ||
cee47f5a HMH |
1160 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1161 | return 0; | |
6c231bd5 HMH |
1162 | } |
1163 | ||
b2c985e7 HMH |
1164 | /* |
1165 | * Call with hotkey_mutex held | |
1166 | */ | |
1167 | static int hotkey_mask_get(void) | |
1168 | { | |
01e88f25 HMH |
1169 | u32 m = 0; |
1170 | ||
b2c985e7 | 1171 | if (tp_features.hotkey_mask) { |
01e88f25 | 1172 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1173 | return -EIO; |
1174 | } | |
01e88f25 | 1175 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1176 | |
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | /* | |
1181 | * Call with hotkey_mutex held | |
1182 | */ | |
1183 | static int hotkey_mask_set(u32 mask) | |
1184 | { | |
1185 | int i; | |
1186 | int rc = 0; | |
1187 | ||
1188 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1189 | if (!tp_warned.hotkey_mask_ff && |
1190 | (mask == 0xffff || mask == 0xffffff || | |
1191 | mask == 0xffffffff)) { | |
1192 | tp_warned.hotkey_mask_ff = 1; | |
1193 | printk(TPACPI_NOTICE | |
1194 | "setting the hotkey mask to 0x%08x is likely " | |
1195 | "not the best way to go about it\n", mask); | |
1196 | printk(TPACPI_NOTICE | |
1197 | "please consider using the driver defaults, " | |
1198 | "and refer to up-to-date thinkpad-acpi " | |
1199 | "documentation\n"); | |
1200 | } | |
1201 | ||
01e88f25 | 1202 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1203 | for (i = 0; i < 32; i++) { |
1204 | u32 m = 1 << i; | |
01e88f25 HMH |
1205 | /* enable in firmware mask only keys not in NVRAM |
1206 | * mode, but enable the key in the cached hotkey_mask | |
1207 | * regardless of mode, or the key will end up | |
1208 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1209 | if (!acpi_evalf(hkey_handle, |
1210 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1211 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1212 | rc = -EIO; |
1213 | break; | |
1214 | } else { | |
1215 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1216 | } | |
1217 | } | |
01e88f25 | 1218 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1219 | |
1220 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1221 | if (!hotkey_mask_get() && !rc && |
1222 | (hotkey_mask & ~hotkey_source_mask) != | |
1223 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1224 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1225 | "requested hot key mask 0x%08x, but " |
1226 | "firmware forced it to 0x%08x\n", | |
1227 | mask, hotkey_mask); | |
1228 | } | |
01e88f25 HMH |
1229 | } else { |
1230 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1231 | HOTKEY_CONFIG_CRITICAL_START | |
1232 | hotkey_mask = mask & hotkey_source_mask; | |
1233 | HOTKEY_CONFIG_CRITICAL_END | |
1234 | hotkey_mask_get(); | |
1235 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1236 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1237 | "requested hot key mask 0x%08x, " |
1238 | "forced to 0x%08x (NVRAM poll mask is " | |
1239 | "0x%08x): no firmware mask support\n", | |
1240 | mask, hotkey_mask, hotkey_source_mask); | |
1241 | } | |
1242 | #else | |
1243 | hotkey_mask_get(); | |
1244 | rc = -ENXIO; | |
1245 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1246 | } |
1247 | ||
1248 | return rc; | |
1249 | } | |
1250 | ||
1251 | static int hotkey_status_get(int *status) | |
1252 | { | |
1253 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1254 | return -EIO; | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | static int hotkey_status_set(int status) | |
1260 | { | |
1261 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1262 | return -EIO; | |
1263 | ||
1264 | return 0; | |
1265 | } | |
1266 | ||
b7c8c200 HMH |
1267 | static void tpacpi_input_send_radiosw(void) |
1268 | { | |
1269 | int wlsw; | |
1270 | ||
b7c8c200 | 1271 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
d147da73 HMH |
1272 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1273 | ||
b7c8c200 HMH |
1274 | input_report_switch(tpacpi_inputdev, |
1275 | SW_RADIO, !!wlsw); | |
1276 | input_sync(tpacpi_inputdev); | |
b7c8c200 | 1277 | |
d147da73 HMH |
1278 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
1279 | } | |
b7c8c200 HMH |
1280 | } |
1281 | ||
6c231bd5 | 1282 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1283 | { |
6c231bd5 | 1284 | int state; |
b3ec6f91 | 1285 | |
6c231bd5 HMH |
1286 | if (tp_features.hotkey_tablet && |
1287 | !hotkey_get_tablet_mode(&state)) { | |
1288 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1289 | |
6c231bd5 HMH |
1290 | input_report_switch(tpacpi_inputdev, |
1291 | SW_TABLET_MODE, !!state); | |
1292 | input_sync(tpacpi_inputdev); | |
1293 | ||
1294 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1295 | } | |
b3ec6f91 HMH |
1296 | } |
1297 | ||
b7c8c200 HMH |
1298 | static void tpacpi_input_send_key(unsigned int scancode) |
1299 | { | |
1300 | unsigned int keycode; | |
1301 | ||
1302 | keycode = hotkey_keycode_map[scancode]; | |
1303 | ||
1304 | if (keycode != KEY_RESERVED) { | |
1305 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1306 | ||
1307 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1308 | if (keycode == KEY_UNKNOWN) | |
1309 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1310 | scancode); | |
1311 | input_sync(tpacpi_inputdev); | |
1312 | ||
1313 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1314 | if (keycode == KEY_UNKNOWN) | |
1315 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1316 | scancode); | |
1317 | input_sync(tpacpi_inputdev); | |
1318 | ||
1319 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1320 | } | |
1321 | } | |
1322 | ||
01e88f25 HMH |
1323 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1324 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1325 | ||
1326 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1327 | { | |
1328 | tpacpi_input_send_key(scancode); | |
1329 | if (hotkey_report_mode < 2) { | |
1330 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1331 | 0x80, 0x1001 + scancode); | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1336 | { | |
1337 | u8 d; | |
1338 | ||
1339 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1340 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1341 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1342 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1343 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1344 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1345 | } | |
1346 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1347 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1348 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1349 | } | |
1350 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1351 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1352 | n->displayexp_toggle = | |
1353 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1354 | } | |
1355 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1356 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1357 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1358 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1359 | n->brightness_toggle = | |
1360 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1361 | } | |
1362 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1363 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1364 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1365 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1366 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1367 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1368 | } | |
1369 | } | |
1370 | ||
1371 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1372 | do { \ |
1373 | if ((mask & (1 << __scancode)) && \ | |
1374 | oldn->__member != newn->__member) \ | |
1375 | tpacpi_hotkey_send_key(__scancode); \ | |
1376 | } while (0) | |
01e88f25 HMH |
1377 | |
1378 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1379 | do { if (mask & (1 << __scancode)) \ | |
1380 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1381 | ||
1382 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1383 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1384 | u32 mask) |
1385 | { | |
1386 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1387 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1388 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1389 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1390 | ||
1391 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1392 | ||
1393 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1394 | ||
1395 | /* handle volume */ | |
1396 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1397 | if (oldn->mute != newn->mute) { | |
1398 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1399 | } | |
1400 | if (oldn->volume_level > newn->volume_level) { | |
1401 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1402 | } else if (oldn->volume_level < newn->volume_level) { | |
1403 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1404 | } else if (oldn->mute == newn->mute) { | |
1405 | /* repeated key presses that didn't change state */ | |
1406 | if (newn->mute) { | |
1407 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1408 | } else if (newn->volume_level != 0) { | |
1409 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1410 | } else { | |
1411 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | /* handle brightness */ | |
1417 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1418 | if (oldn->brightness_level < newn->brightness_level) { | |
1419 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1420 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1421 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1422 | } else { | |
1423 | /* repeated key presses that didn't change state */ | |
1424 | if (newn->brightness_level != 0) { | |
1425 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1426 | } else { | |
1427 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | #undef TPACPI_COMPARE_KEY | |
1434 | #undef TPACPI_MAY_SEND_KEY | |
1435 | ||
1436 | static int hotkey_kthread(void *data) | |
1437 | { | |
1438 | struct tp_nvram_state s[2]; | |
1439 | u32 mask; | |
1440 | unsigned int si, so; | |
1441 | unsigned long t; | |
1442 | unsigned int change_detector, must_reset; | |
1443 | ||
1444 | mutex_lock(&hotkey_thread_mutex); | |
1445 | ||
1446 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1447 | goto exit; | |
1448 | ||
1449 | set_freezable(); | |
1450 | ||
1451 | so = 0; | |
1452 | si = 1; | |
1453 | t = 0; | |
1454 | ||
1455 | /* Initial state for compares */ | |
1456 | mutex_lock(&hotkey_thread_data_mutex); | |
1457 | change_detector = hotkey_config_change; | |
1458 | mask = hotkey_source_mask & hotkey_mask; | |
1459 | mutex_unlock(&hotkey_thread_data_mutex); | |
1460 | hotkey_read_nvram(&s[so], mask); | |
1461 | ||
1462 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1463 | if (t == 0) | |
1464 | t = 1000/hotkey_poll_freq; | |
1465 | t = msleep_interruptible(t); | |
1466 | if (unlikely(kthread_should_stop())) | |
1467 | break; | |
1468 | must_reset = try_to_freeze(); | |
1469 | if (t > 0 && !must_reset) | |
1470 | continue; | |
1471 | ||
1472 | mutex_lock(&hotkey_thread_data_mutex); | |
1473 | if (must_reset || hotkey_config_change != change_detector) { | |
1474 | /* forget old state on thaw or config change */ | |
1475 | si = so; | |
1476 | t = 0; | |
1477 | change_detector = hotkey_config_change; | |
1478 | } | |
1479 | mask = hotkey_source_mask & hotkey_mask; | |
1480 | mutex_unlock(&hotkey_thread_data_mutex); | |
1481 | ||
1482 | if (likely(mask)) { | |
1483 | hotkey_read_nvram(&s[si], mask); | |
1484 | if (likely(si != so)) { | |
1485 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1486 | mask); |
01e88f25 HMH |
1487 | } |
1488 | } | |
1489 | ||
1490 | so = si; | |
1491 | si ^= 1; | |
1492 | } | |
1493 | ||
1494 | exit: | |
1495 | mutex_unlock(&hotkey_thread_mutex); | |
1496 | return 0; | |
1497 | } | |
1498 | ||
1499 | static void hotkey_poll_stop_sync(void) | |
1500 | { | |
1501 | if (tpacpi_hotkey_task) { | |
1502 | if (frozen(tpacpi_hotkey_task) || | |
1503 | freezing(tpacpi_hotkey_task)) | |
1504 | thaw_process(tpacpi_hotkey_task); | |
1505 | ||
1506 | kthread_stop(tpacpi_hotkey_task); | |
1507 | tpacpi_hotkey_task = NULL; | |
1508 | mutex_lock(&hotkey_thread_mutex); | |
1509 | /* at this point, the thread did exit */ | |
1510 | mutex_unlock(&hotkey_thread_mutex); | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | /* call with hotkey_mutex held */ | |
1515 | static void hotkey_poll_setup(int may_warn) | |
1516 | { | |
1517 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1518 | hotkey_poll_freq > 0 && | |
1519 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1520 | if (!tpacpi_hotkey_task) { | |
1521 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
35ff8b9f HMH |
1522 | NULL, |
1523 | TPACPI_FILE "d"); | |
01e88f25 HMH |
1524 | if (IS_ERR(tpacpi_hotkey_task)) { |
1525 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1526 | printk(TPACPI_ERR |
1527 | "could not create kernel thread " | |
01e88f25 HMH |
1528 | "for hotkey polling\n"); |
1529 | } | |
1530 | } | |
1531 | } else { | |
1532 | hotkey_poll_stop_sync(); | |
1533 | if (may_warn && | |
1534 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1535 | printk(TPACPI_NOTICE |
1536 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1537 | "which is currently disabled\n", |
1538 | hotkey_source_mask); | |
1539 | } | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | static void hotkey_poll_setup_safe(int may_warn) | |
1544 | { | |
1545 | mutex_lock(&hotkey_mutex); | |
1546 | hotkey_poll_setup(may_warn); | |
1547 | mutex_unlock(&hotkey_mutex); | |
1548 | } | |
1549 | ||
1bc6b9cd HMH |
1550 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1551 | ||
1552 | static void hotkey_poll_setup_safe(int __unused) | |
1553 | { | |
1554 | } | |
1555 | ||
1556 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1557 | ||
01e88f25 HMH |
1558 | static int hotkey_inputdev_open(struct input_dev *dev) |
1559 | { | |
1560 | switch (tpacpi_lifecycle) { | |
1561 | case TPACPI_LIFE_INIT: | |
1562 | /* | |
1563 | * hotkey_init will call hotkey_poll_setup_safe | |
1564 | * at the appropriate moment | |
1565 | */ | |
1566 | return 0; | |
1567 | case TPACPI_LIFE_EXITING: | |
1568 | return -EBUSY; | |
1569 | case TPACPI_LIFE_RUNNING: | |
1570 | hotkey_poll_setup_safe(0); | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1575 | BUG(); | |
1576 | return -EBUSY; | |
1577 | } | |
1578 | ||
1579 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1580 | { | |
1581 | /* disable hotkey polling when possible */ | |
1582 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1583 | hotkey_poll_setup_safe(0); | |
1584 | } | |
01e88f25 | 1585 | |
a0416420 HMH |
1586 | /* sysfs hotkey enable ------------------------------------------------- */ |
1587 | static ssize_t hotkey_enable_show(struct device *dev, | |
1588 | struct device_attribute *attr, | |
1589 | char *buf) | |
1590 | { | |
ae92bd17 | 1591 | int res, status; |
a0416420 | 1592 | |
b2c985e7 | 1593 | res = hotkey_status_get(&status); |
a0416420 HMH |
1594 | if (res) |
1595 | return res; | |
1596 | ||
1597 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1598 | } | |
1599 | ||
1600 | static ssize_t hotkey_enable_store(struct device *dev, | |
1601 | struct device_attribute *attr, | |
1602 | const char *buf, size_t count) | |
1603 | { | |
1604 | unsigned long t; | |
b2c985e7 | 1605 | int res; |
a0416420 HMH |
1606 | |
1607 | if (parse_strtoul(buf, 1, &t)) | |
1608 | return -EINVAL; | |
1609 | ||
b2c985e7 | 1610 | res = hotkey_status_set(t); |
a0416420 HMH |
1611 | |
1612 | return (res) ? res : count; | |
1613 | } | |
1614 | ||
1615 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1616 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1617 | hotkey_enable_show, hotkey_enable_store); |
1618 | ||
1619 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1620 | static ssize_t hotkey_mask_show(struct device *dev, | |
1621 | struct device_attribute *attr, | |
1622 | char *buf) | |
1623 | { | |
b2c985e7 | 1624 | int res; |
a0416420 | 1625 | |
b2c985e7 HMH |
1626 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1627 | return -ERESTARTSYS; | |
1628 | res = hotkey_mask_get(); | |
1629 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1630 | |
b2c985e7 HMH |
1631 | return (res)? |
1632 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1633 | } |
1634 | ||
1635 | static ssize_t hotkey_mask_store(struct device *dev, | |
1636 | struct device_attribute *attr, | |
1637 | const char *buf, size_t count) | |
1638 | { | |
1639 | unsigned long t; | |
b2c985e7 | 1640 | int res; |
a0416420 | 1641 | |
ae92bd17 | 1642 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1643 | return -EINVAL; |
1644 | ||
b2c985e7 HMH |
1645 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1646 | return -ERESTARTSYS; | |
1647 | ||
1648 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1649 | |
1650 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1651 | hotkey_poll_setup(1); | |
1652 | #endif | |
1653 | ||
b2c985e7 | 1654 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1655 | |
1656 | return (res) ? res : count; | |
1657 | } | |
1658 | ||
1659 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1660 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1661 | hotkey_mask_show, hotkey_mask_store); |
1662 | ||
1663 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1664 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1665 | struct device_attribute *attr, | |
1666 | char *buf) | |
1667 | { | |
1668 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1669 | } | |
1670 | ||
1671 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1672 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1673 | |
1674 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1675 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1676 | struct device_attribute *attr, | |
1677 | char *buf) | |
1678 | { | |
ae92bd17 | 1679 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1680 | } |
1681 | ||
1682 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1683 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1684 | |
9b010de5 HMH |
1685 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1686 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1687 | struct device_attribute *attr, | |
1688 | char *buf) | |
1689 | { | |
01e88f25 HMH |
1690 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1691 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1692 | } |
1693 | ||
1694 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1695 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1696 | ||
1697 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1698 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1699 | struct device_attribute *attr, | |
1700 | char *buf) | |
1701 | { | |
1702 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1703 | (hotkey_all_mask | hotkey_source_mask) |
1704 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1705 | } |
1706 | ||
1707 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1708 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1709 | hotkey_recommended_mask_show, NULL); | |
1710 | ||
01e88f25 HMH |
1711 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1712 | ||
1713 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1714 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1715 | struct device_attribute *attr, | |
1716 | char *buf) | |
1717 | { | |
1718 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1719 | } | |
1720 | ||
1721 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1722 | struct device_attribute *attr, | |
1723 | const char *buf, size_t count) | |
1724 | { | |
1725 | unsigned long t; | |
1726 | ||
1727 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1728 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1729 | return -EINVAL; | |
1730 | ||
1731 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1732 | return -ERESTARTSYS; | |
1733 | ||
1734 | HOTKEY_CONFIG_CRITICAL_START | |
1735 | hotkey_source_mask = t; | |
1736 | HOTKEY_CONFIG_CRITICAL_END | |
1737 | ||
1738 | hotkey_poll_setup(1); | |
1739 | ||
1740 | mutex_unlock(&hotkey_mutex); | |
1741 | ||
1742 | return count; | |
1743 | } | |
1744 | ||
1745 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1746 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1747 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1748 | ||
1749 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1750 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1751 | struct device_attribute *attr, | |
1752 | char *buf) | |
1753 | { | |
1754 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1755 | } | |
1756 | ||
1757 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1758 | struct device_attribute *attr, | |
1759 | const char *buf, size_t count) | |
1760 | { | |
1761 | unsigned long t; | |
1762 | ||
1763 | if (parse_strtoul(buf, 25, &t)) | |
1764 | return -EINVAL; | |
1765 | ||
1766 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1767 | return -ERESTARTSYS; | |
1768 | ||
1769 | hotkey_poll_freq = t; | |
1770 | ||
1771 | hotkey_poll_setup(1); | |
1772 | mutex_unlock(&hotkey_mutex); | |
1773 | ||
1774 | return count; | |
1775 | } | |
1776 | ||
1777 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1778 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1779 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1780 | ||
1781 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1782 | ||
50ebec09 | 1783 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1784 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1785 | struct device_attribute *attr, | |
1786 | char *buf) | |
1787 | { | |
1788 | int res, s; | |
1789 | res = hotkey_get_wlsw(&s); | |
1790 | if (res < 0) | |
1791 | return res; | |
1792 | ||
1793 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1794 | } | |
1795 | ||
1796 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1797 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1798 | ||
50ebec09 HMH |
1799 | static void hotkey_radio_sw_notify_change(void) |
1800 | { | |
1801 | if (tp_features.hotkey_wlsw) | |
1802 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1803 | "hotkey_radio_sw"); | |
1804 | } | |
1805 | ||
6c231bd5 HMH |
1806 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
1807 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
1808 | struct device_attribute *attr, | |
1809 | char *buf) | |
1810 | { | |
1811 | int res, s; | |
1812 | res = hotkey_get_tablet_mode(&s); | |
1813 | if (res < 0) | |
1814 | return res; | |
1815 | ||
1816 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1817 | } | |
1818 | ||
1819 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
1820 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
1821 | ||
1822 | static void hotkey_tablet_mode_notify_change(void) | |
1823 | { | |
1824 | if (tp_features.hotkey_tablet) | |
1825 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1826 | "hotkey_tablet_mode"); | |
1827 | } | |
1828 | ||
ff80f137 HMH |
1829 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1830 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1831 | struct device_attribute *attr, | |
1832 | char *buf) | |
1833 | { | |
1834 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1835 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1836 | } | |
1837 | ||
1838 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1839 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1840 | ||
50ebec09 | 1841 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
1842 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
1843 | struct device_attribute *attr, | |
1844 | char *buf) | |
1845 | { | |
1846 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
1847 | } | |
1848 | ||
1849 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
1850 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
1851 | ||
1d5a2b54 | 1852 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
1853 | { |
1854 | if (tp_features.hotkey_mask) | |
1855 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1856 | "wakeup_reason"); | |
1857 | } | |
1858 | ||
1859 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
1860 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
1861 | struct device_attribute *attr, | |
1862 | char *buf) | |
1863 | { | |
1864 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
1865 | } | |
1866 | ||
1867 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
1868 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
1869 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
1870 | ||
1d5a2b54 | 1871 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
1872 | { |
1873 | if (tp_features.hotkey_mask) | |
1874 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1875 | "wakeup_hotunplug_complete"); | |
1876 | } | |
1877 | ||
a0416420 HMH |
1878 | /* --------------------------------------------------------------------- */ |
1879 | ||
ff80f137 HMH |
1880 | static struct attribute *hotkey_attributes[] __initdata = { |
1881 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1882 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1883 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1884 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1885 | &dev_attr_hotkey_mask.attr, | |
1886 | &dev_attr_hotkey_all_mask.attr, | |
1887 | &dev_attr_hotkey_recommended_mask.attr, | |
1888 | &dev_attr_hotkey_source_mask.attr, | |
1889 | &dev_attr_hotkey_poll_freq.attr, | |
1890 | #endif | |
ff80f137 HMH |
1891 | }; |
1892 | ||
1893 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1894 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1895 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1896 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1897 | &dev_attr_hotkey_all_mask.attr, |
1898 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1899 | #endif |
a713b4d7 HMH |
1900 | &dev_attr_hotkey_wakeup_reason.attr, |
1901 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
1902 | }; |
1903 | ||
a5763f22 | 1904 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1905 | { |
0f089147 HMH |
1906 | /* Requirements for changing the default keymaps: |
1907 | * | |
1908 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1909 | * good reasons. Do not change them unless you have deep | |
1910 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1911 | * the various ThinkPad models. The driver behaves | |
1912 | * differently for KEY_RESERVED: such keys have their | |
1913 | * hot key mask *unset* in mask_recommended, and also | |
1914 | * in the initial hot key mask programmed into the | |
1915 | * firmware at driver load time, which means the firm- | |
1916 | * ware may react very differently if you change them to | |
1917 | * something else; | |
1918 | * | |
1919 | * 2. You must be subscribed to the linux-thinkpad and | |
1920 | * ibm-acpi-devel mailing lists, and you should read the | |
1921 | * list archives since 2007 if you want to change the | |
1922 | * keymaps. This requirement exists so that you will | |
1923 | * know the past history of problems with the thinkpad- | |
1924 | * acpi driver keymaps, and also that you will be | |
1925 | * listening to any bug reports; | |
1926 | * | |
1927 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1928 | * for merging, *ever*. Send them to the linux-acpi | |
1929 | * mailinglist for comments. Merging is to be done only | |
1930 | * through acpi-test and the ACPI maintainer. | |
1931 | * | |
1932 | * If the above is too much to ask, don't change the keymap. | |
1933 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1934 | */ | |
edf0e0e5 HMH |
1935 | static u16 ibm_keycode_map[] __initdata = { |
1936 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1937 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1938 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1939 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1940 | |
1941 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1942 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1943 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1944 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1945 | |
1946 | /* brightness: firmware always reacts to them, unless | |
1947 | * X.org did some tricks in the radeon BIOS scratch | |
1948 | * registers of *some* models */ | |
e927c08d | 1949 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1950 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1951 | |
1952 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1953 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1954 | |
edf0e0e5 HMH |
1955 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1956 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1957 | |
1958 | /* Volume: firmware always react to it and reprograms | |
1959 | * the built-in *extra* mixer. Never map it to control | |
1960 | * another mixer by default. */ | |
e927c08d HMH |
1961 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1962 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1963 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1964 | |
edf0e0e5 | 1965 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1966 | |
edf0e0e5 HMH |
1967 | /* (assignments unknown, please report if found) */ |
1968 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1969 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1970 | }; | |
1971 | static u16 lenovo_keycode_map[] __initdata = { | |
1972 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1973 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1974 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1975 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1976 | |
1977 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1978 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1979 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1980 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1981 | |
b5972796 HMH |
1982 | /* These either have to go through ACPI video, or |
1983 | * act like in the IBM ThinkPads, so don't ever | |
1984 | * enable them by default */ | |
56a185b4 | 1985 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1986 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1987 | |
edf0e0e5 | 1988 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1989 | |
edf0e0e5 HMH |
1990 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1991 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1992 | |
1993 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1994 | * react to it and reprograms the built-in *extra* mixer. | |
1995 | * Never map it to control another mixer by default. | |
1996 | * | |
1997 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1998 | * these over the regular keyboard, so these are no-ops, | |
1999 | * but there are still weird bugs re. MUTE, so do not | |
2000 | * change unless you get test reports from all Lenovo | |
2001 | * models. May cause the BIOS to interfere with the | |
2002 | * HDA mixer. | |
2003 | */ | |
e927c08d HMH |
2004 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2005 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2006 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2007 | |
edf0e0e5 | 2008 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2009 | |
edf0e0e5 HMH |
2010 | /* (assignments unknown, please report if found) */ |
2011 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2012 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2013 | }; | |
2014 | ||
2015 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2016 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2017 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2018 | ||
6a38abbf | 2019 | int res, i; |
74941a69 | 2020 | int status; |
1b6521dc | 2021 | int hkeyv; |
b86c4722 | 2022 | |
fe08bc4b HMH |
2023 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2024 | ||
6a38abbf | 2025 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2026 | BUG_ON(tpacpi_inputdev->open != NULL || |
2027 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2028 | |
e0c7dfe7 | 2029 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2030 | mutex_init(&hotkey_mutex); |
5fba344c | 2031 | |
01e88f25 HMH |
2032 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2033 | mutex_init(&hotkey_thread_mutex); | |
2034 | mutex_init(&hotkey_thread_data_mutex); | |
2035 | #endif | |
2036 | ||
56b6aeb0 | 2037 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2038 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2039 | |
fe08bc4b | 2040 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2041 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2042 | |
d8fd94d9 | 2043 | if (tp_features.hotkey) { |
6c231bd5 | 2044 | hotkey_dev_attributes = create_attr_set(13, NULL); |
a0416420 HMH |
2045 | if (!hotkey_dev_attributes) |
2046 | return -ENOMEM; | |
ff80f137 HMH |
2047 | res = add_many_to_attr_set(hotkey_dev_attributes, |
2048 | hotkey_attributes, | |
2049 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
2050 | if (res) |
2051 | return res; | |
2052 | ||
56b6aeb0 | 2053 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
2054 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
2055 | for HKEY interface version 0x100 */ | |
2056 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2057 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 2058 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 2059 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
2060 | printk(TPACPI_ERR "please report this to %s\n", |
2061 | TPACPI_MAIL); | |
1b6521dc HMH |
2062 | } else { |
2063 | /* | |
2064 | * MHKV 0x100 in A31, R40, R40e, | |
2065 | * T4x, X31, and later | |
01e88f25 | 2066 | */ |
1b6521dc HMH |
2067 | tp_features.hotkey_mask = 1; |
2068 | } | |
2069 | } | |
56b6aeb0 | 2070 | |
fe08bc4b | 2071 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 2072 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 2073 | |
9b010de5 | 2074 | if (tp_features.hotkey_mask) { |
9b010de5 | 2075 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 2076 | "MHKA", "qd")) { |
e0c7dfe7 | 2077 | printk(TPACPI_ERR |
1b6521dc HMH |
2078 | "missing MHKA handler, " |
2079 | "please report this to %s\n", | |
e0c7dfe7 | 2080 | TPACPI_MAIL); |
35ff8b9f HMH |
2081 | /* FN+F12, FN+F4, FN+F3 */ |
2082 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 2083 | } |
9b010de5 HMH |
2084 | } |
2085 | ||
01e88f25 HMH |
2086 | /* hotkey_source_mask *must* be zero for |
2087 | * the first hotkey_mask_get */ | |
b2c985e7 | 2088 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 2089 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
2090 | res = hotkey_mask_get(); |
2091 | hotkey_orig_mask = hotkey_mask; | |
2092 | if (!res) { | |
2093 | res = add_many_to_attr_set( | |
2094 | hotkey_dev_attributes, | |
2095 | hotkey_mask_attributes, | |
2096 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2097 | } | |
a0416420 | 2098 | } |
74941a69 | 2099 | |
01e88f25 HMH |
2100 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2101 | if (tp_features.hotkey_mask) { | |
2102 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2103 | & ~hotkey_all_mask; | |
2104 | } else { | |
2105 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2106 | } | |
2107 | ||
2108 | vdbg_printk(TPACPI_DBG_INIT, | |
2109 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2110 | hotkey_source_mask, hotkey_poll_freq); | |
2111 | #endif | |
2112 | ||
74941a69 HMH |
2113 | /* Not all thinkpads have a hardware radio switch */ |
2114 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2115 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 2116 | printk(TPACPI_INFO |
74941a69 HMH |
2117 | "radio switch found; radios are %s\n", |
2118 | enabled(status, 0)); | |
2119 | res = add_to_attr_set(hotkey_dev_attributes, | |
2120 | &dev_attr_hotkey_radio_sw.attr); | |
2121 | } | |
2122 | ||
6c231bd5 HMH |
2123 | /* For X41t, X60t, X61t Tablets... */ |
2124 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2125 | tp_features.hotkey_tablet = 1; | |
2126 | printk(TPACPI_INFO | |
2127 | "possible tablet mode switch found; " | |
2128 | "ThinkPad in %s mode\n", | |
2129 | (status & TP_HOTKEY_TABLET_MASK)? | |
2130 | "tablet" : "laptop"); | |
2131 | res = add_to_attr_set(hotkey_dev_attributes, | |
2132 | &dev_attr_hotkey_tablet_mode.attr); | |
2133 | } | |
2134 | ||
a0416420 HMH |
2135 | if (!res) |
2136 | res = register_attr_set_with_sysfs( | |
2137 | hotkey_dev_attributes, | |
2138 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2139 | if (res) |
2140 | return res; | |
6a38abbf | 2141 | |
edf0e0e5 HMH |
2142 | /* Set up key map */ |
2143 | ||
2144 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2145 | GFP_KERNEL); | |
2146 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
2147 | printk(TPACPI_ERR |
2148 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
2149 | return -ENOMEM; |
2150 | } | |
2151 | ||
2152 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2153 | dbg_printk(TPACPI_DBG_INIT, | |
2154 | "using Lenovo default hot key map\n"); | |
2155 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2156 | TPACPI_HOTKEY_MAP_SIZE); | |
2157 | } else { | |
2158 | dbg_printk(TPACPI_DBG_INIT, | |
2159 | "using IBM default hot key map\n"); | |
2160 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2161 | TPACPI_HOTKEY_MAP_SIZE); | |
2162 | } | |
2163 | ||
6a38abbf HMH |
2164 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2165 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2166 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2167 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2168 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2169 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2170 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2171 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2172 | set_bit(hotkey_keycode_map[i], | |
2173 | tpacpi_inputdev->keybit); | |
2174 | } else { | |
2175 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2176 | hotkey_reserved_mask |= 1 << i; | |
2177 | } | |
2178 | } | |
2179 | ||
5c29d58f HMH |
2180 | if (tp_features.hotkey_wlsw) { |
2181 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2182 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2183 | } | |
6c231bd5 | 2184 | if (tp_features.hotkey_tablet) { |
b3ec6f91 HMH |
2185 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
2186 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2187 | } | |
5c29d58f | 2188 | |
b5972796 HMH |
2189 | /* Do not issue duplicate brightness change events to |
2190 | * userspace */ | |
2191 | if (!tp_features.bright_acpimode) | |
2192 | /* update bright_acpimode... */ | |
2193 | tpacpi_check_std_acpi_brightness_support(); | |
2194 | ||
2195 | if (tp_features.bright_acpimode) { | |
2196 | printk(TPACPI_INFO | |
2197 | "This ThinkPad has standard ACPI backlight " | |
2198 | "brightness control, supported by the ACPI " | |
2199 | "video driver\n"); | |
2200 | printk(TPACPI_NOTICE | |
2201 | "Disabling thinkpad-acpi brightness events " | |
2202 | "by default...\n"); | |
2203 | ||
2204 | /* The hotkey_reserved_mask change below is not | |
2205 | * necessary while the keys are at KEY_RESERVED in the | |
2206 | * default map, but better safe than sorry, leave it | |
2207 | * here as a marker of what we have to do, especially | |
2208 | * when we finally become able to set this at runtime | |
2209 | * on response to X.org requests */ | |
2210 | hotkey_reserved_mask |= | |
2211 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2212 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2213 | } | |
2214 | ||
1a343760 HMH |
2215 | dbg_printk(TPACPI_DBG_INIT, |
2216 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2217 | res = hotkey_status_set(1); |
2218 | if (res) | |
2219 | return res; | |
01e88f25 HMH |
2220 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2221 | & ~hotkey_reserved_mask) | |
1a343760 | 2222 | | hotkey_orig_mask); |
01e88f25 | 2223 | if (res < 0 && res != -ENXIO) |
1a343760 | 2224 | return res; |
ff80f137 HMH |
2225 | |
2226 | dbg_printk(TPACPI_DBG_INIT, | |
2227 | "legacy hot key reporting over procfs %s\n", | |
2228 | (hotkey_report_mode < 2) ? | |
2229 | "enabled" : "disabled"); | |
01e88f25 | 2230 | |
01e88f25 HMH |
2231 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2232 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2233 | ||
2234 | hotkey_poll_setup_safe(1); | |
7526696a | 2235 | tpacpi_input_send_radiosw(); |
6c231bd5 | 2236 | tpacpi_input_send_tabletsw(); |
56b6aeb0 HMH |
2237 | } |
2238 | ||
d8fd94d9 | 2239 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2240 | } |
2241 | ||
2242 | static void hotkey_exit(void) | |
2243 | { | |
01e88f25 HMH |
2244 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2245 | hotkey_poll_stop_sync(); | |
2246 | #endif | |
2247 | ||
d8fd94d9 | 2248 | if (tp_features.hotkey) { |
35ff8b9f HMH |
2249 | dbg_printk(TPACPI_DBG_EXIT, |
2250 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
2251 | /* no short-circuit boolean operator below! */ |
2252 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2253 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
2254 | printk(TPACPI_ERR |
2255 | "failed to restore hot key mask " | |
2256 | "to BIOS defaults\n"); | |
5fba344c | 2257 | } |
a0416420 HMH |
2258 | |
2259 | if (hotkey_dev_attributes) { | |
2260 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2261 | hotkey_dev_attributes = NULL; | |
2262 | } | |
56b6aeb0 HMH |
2263 | } |
2264 | ||
2265 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2266 | { | |
6a38abbf | 2267 | u32 hkey; |
b7c8c200 | 2268 | unsigned int scancode; |
3eea123d | 2269 | int send_acpi_ev; |
3e5ce914 | 2270 | int ignore_acpi_ev; |
3b64b51d | 2271 | int unk_ev; |
3eea123d HMH |
2272 | |
2273 | if (event != 0x80) { | |
35ff8b9f HMH |
2274 | printk(TPACPI_ERR |
2275 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2276 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2277 | acpi_bus_generate_netlink_event( |
2278 | ibm->acpi->device->pnp.device_class, | |
2279 | ibm->acpi->device->dev.bus_id, | |
2280 | event, 0); | |
3eea123d HMH |
2281 | return; |
2282 | } | |
2283 | ||
2284 | while (1) { | |
2285 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2286 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2287 | return; |
2288 | } | |
2289 | ||
2290 | if (hkey == 0) { | |
2291 | /* queue empty */ | |
2292 | return; | |
2293 | } | |
2294 | ||
3b64b51d | 2295 | send_acpi_ev = 1; |
3e5ce914 | 2296 | ignore_acpi_ev = 0; |
3b64b51d | 2297 | unk_ev = 0; |
56b6aeb0 | 2298 | |
ff80f137 HMH |
2299 | switch (hkey >> 12) { |
2300 | case 1: | |
2301 | /* 0x1000-0x1FFF: key presses */ | |
2302 | scancode = hkey & 0xfff; | |
2303 | if (scancode > 0 && scancode < 0x21) { | |
2304 | scancode--; | |
01e88f25 HMH |
2305 | if (!(hotkey_source_mask & (1 << scancode))) { |
2306 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2307 | send_acpi_ev = 0; |
01e88f25 HMH |
2308 | } else { |
2309 | ignore_acpi_ev = 1; | |
2310 | } | |
ff80f137 | 2311 | } else { |
3b64b51d | 2312 | unk_ev = 1; |
ff80f137 HMH |
2313 | } |
2314 | break; | |
a713b4d7 HMH |
2315 | case 2: |
2316 | /* Wakeup reason */ | |
2317 | switch (hkey) { | |
2318 | case 0x2304: /* suspend, undock */ | |
2319 | case 0x2404: /* hibernation, undock */ | |
2320 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2321 | ignore_acpi_ev = 1; | |
2322 | break; | |
2323 | case 0x2305: /* suspend, bay eject */ | |
2324 | case 0x2405: /* hibernation, bay eject */ | |
2325 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2326 | ignore_acpi_ev = 1; | |
2327 | break; | |
2328 | default: | |
2329 | unk_ev = 1; | |
2330 | } | |
2331 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2332 | printk(TPACPI_INFO | |
2333 | "woke up due to a hot-unplug " | |
2334 | "request...\n"); | |
50ebec09 | 2335 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2336 | } |
2337 | break; | |
2338 | case 3: | |
2339 | /* bay-related wakeups */ | |
2340 | if (hkey == 0x3003) { | |
2341 | hotkey_autosleep_ack = 1; | |
2342 | printk(TPACPI_INFO | |
2343 | "bay ejected\n"); | |
50ebec09 | 2344 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2345 | } else { |
2346 | unk_ev = 1; | |
2347 | } | |
2348 | break; | |
2349 | case 4: | |
2350 | /* dock-related wakeups */ | |
2351 | if (hkey == 0x4003) { | |
2352 | hotkey_autosleep_ack = 1; | |
2353 | printk(TPACPI_INFO | |
2354 | "undocked\n"); | |
50ebec09 | 2355 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2356 | } else { |
2357 | unk_ev = 1; | |
2358 | } | |
2359 | break; | |
ff80f137 | 2360 | case 5: |
d1edb2b5 | 2361 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2362 | switch (hkey) { |
d1edb2b5 | 2363 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2364 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2365 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2366 | break; |
6c231bd5 HMH |
2367 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2368 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2369 | tpacpi_input_send_tabletsw(); | |
2370 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2371 | send_acpi_ev = 0; |
2372 | break; | |
3b64b51d HMH |
2373 | case 0x5001: |
2374 | case 0x5002: | |
2375 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2376 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2377 | break; |
2378 | default: | |
2379 | unk_ev = 1; | |
ff80f137 HMH |
2380 | } |
2381 | break; | |
2382 | case 7: | |
2383 | /* 0x7000-0x7FFF: misc */ | |
2384 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2385 | tpacpi_input_send_radiosw(); | |
50ebec09 | 2386 | hotkey_radio_sw_notify_change(); |
3b64b51d | 2387 | send_acpi_ev = 0; |
6a38abbf | 2388 | break; |
6a38abbf | 2389 | } |
ff80f137 HMH |
2390 | /* fallthrough to default */ |
2391 | default: | |
3b64b51d HMH |
2392 | unk_ev = 1; |
2393 | } | |
2394 | if (unk_ev) { | |
35ff8b9f HMH |
2395 | printk(TPACPI_NOTICE |
2396 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2397 | } |
ff80f137 | 2398 | |
3eea123d | 2399 | /* Legacy events */ |
35ff8b9f HMH |
2400 | if (!ignore_acpi_ev && |
2401 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2402 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2403 | event, hkey); | |
3e5ce914 | 2404 | } |
ff80f137 | 2405 | |
3eea123d | 2406 | /* netlink events */ |
3e5ce914 | 2407 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2408 | acpi_bus_generate_netlink_event( |
2409 | ibm->acpi->device->pnp.device_class, | |
2410 | ibm->acpi->device->dev.bus_id, | |
2411 | event, hkey); | |
3eea123d | 2412 | } |
56b6aeb0 HMH |
2413 | } |
2414 | } | |
2415 | ||
a713b4d7 HMH |
2416 | static void hotkey_suspend(pm_message_t state) |
2417 | { | |
2418 | /* Do these on suspend, we get the events on early resume! */ | |
2419 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2420 | hotkey_autosleep_ack = 0; | |
2421 | } | |
2422 | ||
5c29d58f HMH |
2423 | static void hotkey_resume(void) |
2424 | { | |
b2c985e7 | 2425 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2426 | printk(TPACPI_ERR |
2427 | "error while trying to read hot key mask " | |
2428 | "from firmware\n"); | |
5c29d58f | 2429 | tpacpi_input_send_radiosw(); |
50ebec09 | 2430 | hotkey_radio_sw_notify_change(); |
6c231bd5 | 2431 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2432 | hotkey_wakeup_reason_notify_change(); |
2433 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2434 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2435 | } |
2436 | ||
a0416420 | 2437 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2438 | static int hotkey_read(char *p) |
1da177e4 | 2439 | { |
ae92bd17 | 2440 | int res, status; |
1da177e4 LT |
2441 | int len = 0; |
2442 | ||
d8fd94d9 | 2443 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2444 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2445 | return len; | |
2446 | } | |
2447 | ||
fc589a3c HMH |
2448 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2449 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2450 | res = hotkey_status_get(&status); |
2451 | if (!res) | |
2452 | res = hotkey_mask_get(); | |
40ca9fdf | 2453 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2454 | if (res) |
2455 | return res; | |
1da177e4 LT |
2456 | |
2457 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2458 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2459 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2460 | len += sprintf(p + len, |
2461 | "commands:\tenable, disable, reset, <mask>\n"); | |
2462 | } else { | |
2463 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2464 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2465 | } | |
2466 | ||
2467 | return len; | |
2468 | } | |
2469 | ||
78f81cc4 | 2470 | static int hotkey_write(char *buf) |
1da177e4 | 2471 | { |
ae92bd17 HMH |
2472 | int res, status; |
2473 | u32 mask; | |
1da177e4 | 2474 | char *cmd; |
1da177e4 | 2475 | |
d8fd94d9 | 2476 | if (!tp_features.hotkey) |
1da177e4 LT |
2477 | return -ENODEV; |
2478 | ||
fc589a3c HMH |
2479 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2480 | return -ERESTARTSYS; | |
40ca9fdf | 2481 | |
b2c985e7 HMH |
2482 | status = -1; |
2483 | mask = hotkey_mask; | |
78f81cc4 | 2484 | |
40ca9fdf | 2485 | res = 0; |
1da177e4 LT |
2486 | while ((cmd = next_cmd(&buf))) { |
2487 | if (strlencmp(cmd, "enable") == 0) { | |
2488 | status = 1; | |
2489 | } else if (strlencmp(cmd, "disable") == 0) { | |
2490 | status = 0; | |
2491 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2492 | status = hotkey_orig_status; |
2493 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2494 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2495 | /* mask set */ | |
2496 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2497 | /* mask set */ | |
40ca9fdf HMH |
2498 | } else { |
2499 | res = -EINVAL; | |
2500 | goto errexit; | |
2501 | } | |
1da177e4 | 2502 | } |
b2c985e7 HMH |
2503 | if (status != -1) |
2504 | res = hotkey_status_set(status); | |
1da177e4 | 2505 | |
b2c985e7 HMH |
2506 | if (!res && mask != hotkey_mask) |
2507 | res = hotkey_mask_set(mask); | |
1da177e4 | 2508 | |
40ca9fdf HMH |
2509 | errexit: |
2510 | mutex_unlock(&hotkey_mutex); | |
2511 | return res; | |
78f81cc4 | 2512 | } |
1da177e4 | 2513 | |
1ba90e3a | 2514 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2515 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2516 | {"", 0}, |
2517 | }; | |
2518 | ||
8d376cd6 | 2519 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2520 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2521 | .notify = hotkey_notify, |
2522 | .handle = &hkey_handle, | |
2523 | .type = ACPI_DEVICE_NOTIFY, | |
2524 | }; | |
2525 | ||
a5763f22 HMH |
2526 | static struct ibm_struct hotkey_driver_data = { |
2527 | .name = "hotkey", | |
a5763f22 HMH |
2528 | .read = hotkey_read, |
2529 | .write = hotkey_write, | |
2530 | .exit = hotkey_exit, | |
5c29d58f | 2531 | .resume = hotkey_resume, |
a713b4d7 | 2532 | .suspend = hotkey_suspend, |
8d376cd6 | 2533 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2534 | }; |
2535 | ||
56b6aeb0 HMH |
2536 | /************************************************************************* |
2537 | * Bluetooth subdriver | |
2538 | */ | |
1da177e4 | 2539 | |
f74a27d4 HMH |
2540 | enum { |
2541 | /* ACPI GBDC/SBDC bits */ | |
2542 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2543 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2544 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2545 | }; | |
2546 | ||
2547 | static int bluetooth_get_radiosw(void); | |
2548 | static int bluetooth_set_radiosw(int radio_on); | |
2549 | ||
d3a6ade4 HMH |
2550 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2551 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2552 | struct device_attribute *attr, | |
2553 | char *buf) | |
2554 | { | |
2555 | int status; | |
2556 | ||
2557 | status = bluetooth_get_radiosw(); | |
2558 | if (status < 0) | |
2559 | return status; | |
2560 | ||
2561 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2562 | } | |
2563 | ||
2564 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2565 | struct device_attribute *attr, | |
2566 | const char *buf, size_t count) | |
2567 | { | |
2568 | unsigned long t; | |
2569 | int res; | |
2570 | ||
2571 | if (parse_strtoul(buf, 1, &t)) | |
2572 | return -EINVAL; | |
2573 | ||
2574 | res = bluetooth_set_radiosw(t); | |
2575 | ||
2576 | return (res) ? res : count; | |
2577 | } | |
2578 | ||
2579 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2580 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2581 | bluetooth_enable_show, bluetooth_enable_store); |
2582 | ||
2583 | /* --------------------------------------------------------------------- */ | |
2584 | ||
2585 | static struct attribute *bluetooth_attributes[] = { | |
2586 | &dev_attr_bluetooth_enable.attr, | |
2587 | NULL | |
2588 | }; | |
2589 | ||
2590 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2591 | .attrs = bluetooth_attributes, |
2592 | }; | |
2593 | ||
a5763f22 | 2594 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2595 | { |
d3a6ade4 | 2596 | int res; |
d6fdd1e9 HMH |
2597 | int status = 0; |
2598 | ||
fe08bc4b HMH |
2599 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2600 | ||
e0c7dfe7 | 2601 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2602 | |
78f81cc4 BD |
2603 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2604 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2605 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2606 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2607 | ||
2608 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2609 | str_supported(tp_features.bluetooth), | |
2610 | status); | |
2611 | ||
d3a6ade4 HMH |
2612 | if (tp_features.bluetooth) { |
2613 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2614 | /* no bluetooth hardware present in system */ | |
2615 | tp_features.bluetooth = 0; | |
2616 | dbg_printk(TPACPI_DBG_INIT, | |
2617 | "bluetooth hardware not installed\n"); | |
2618 | } else { | |
2619 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2620 | &bluetooth_attr_group); | |
2621 | if (res) | |
2622 | return res; | |
2623 | } | |
d6fdd1e9 | 2624 | } |
fe08bc4b | 2625 | |
d8fd94d9 | 2626 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2627 | } |
2628 | ||
d3a6ade4 HMH |
2629 | static void bluetooth_exit(void) |
2630 | { | |
2631 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2632 | &bluetooth_attr_group); | |
2633 | } | |
2634 | ||
d6fdd1e9 | 2635 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2636 | { |
2637 | int status; | |
2638 | ||
d6fdd1e9 HMH |
2639 | if (!tp_features.bluetooth) |
2640 | return -ENODEV; | |
1da177e4 | 2641 | |
d6fdd1e9 HMH |
2642 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2643 | return -EIO; | |
2644 | ||
2645 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2646 | } | |
2647 | ||
2648 | static int bluetooth_set_radiosw(int radio_on) | |
2649 | { | |
2650 | int status; | |
2651 | ||
2652 | if (!tp_features.bluetooth) | |
2653 | return -ENODEV; | |
2654 | ||
2655 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2656 | return -EIO; | |
2657 | if (radio_on) | |
2658 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2659 | else | |
2660 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2661 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2662 | return -EIO; | |
2663 | ||
2664 | return 0; | |
1da177e4 LT |
2665 | } |
2666 | ||
d3a6ade4 | 2667 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2668 | static int bluetooth_read(char *p) |
1da177e4 LT |
2669 | { |
2670 | int len = 0; | |
d6fdd1e9 | 2671 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2672 | |
d8fd94d9 | 2673 | if (!tp_features.bluetooth) |
1da177e4 | 2674 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2675 | else { |
d6fdd1e9 HMH |
2676 | len += sprintf(p + len, "status:\t\t%s\n", |
2677 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2678 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2679 | } | |
2680 | ||
2681 | return len; | |
2682 | } | |
2683 | ||
78f81cc4 | 2684 | static int bluetooth_write(char *buf) |
1da177e4 | 2685 | { |
1da177e4 | 2686 | char *cmd; |
1da177e4 | 2687 | |
d8fd94d9 | 2688 | if (!tp_features.bluetooth) |
78f81cc4 | 2689 | return -ENODEV; |
1da177e4 LT |
2690 | |
2691 | while ((cmd = next_cmd(&buf))) { | |
2692 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2693 | bluetooth_set_radiosw(1); |
1da177e4 | 2694 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2695 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2696 | } else |
2697 | return -EINVAL; | |
1da177e4 LT |
2698 | } |
2699 | ||
1da177e4 LT |
2700 | return 0; |
2701 | } | |
2702 | ||
a5763f22 HMH |
2703 | static struct ibm_struct bluetooth_driver_data = { |
2704 | .name = "bluetooth", | |
2705 | .read = bluetooth_read, | |
2706 | .write = bluetooth_write, | |
d3a6ade4 | 2707 | .exit = bluetooth_exit, |
a5763f22 HMH |
2708 | }; |
2709 | ||
56b6aeb0 HMH |
2710 | /************************************************************************* |
2711 | * Wan subdriver | |
2712 | */ | |
2713 | ||
f74a27d4 HMH |
2714 | enum { |
2715 | /* ACPI GWAN/SWAN bits */ | |
2716 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2717 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2718 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2719 | }; | |
2720 | ||
2721 | static int wan_get_radiosw(void); | |
2722 | static int wan_set_radiosw(int radio_on); | |
2723 | ||
d3a6ade4 HMH |
2724 | /* sysfs wan enable ---------------------------------------------------- */ |
2725 | static ssize_t wan_enable_show(struct device *dev, | |
2726 | struct device_attribute *attr, | |
2727 | char *buf) | |
2728 | { | |
2729 | int status; | |
2730 | ||
2731 | status = wan_get_radiosw(); | |
2732 | if (status < 0) | |
2733 | return status; | |
2734 | ||
2735 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2736 | } | |
2737 | ||
2738 | static ssize_t wan_enable_store(struct device *dev, | |
2739 | struct device_attribute *attr, | |
2740 | const char *buf, size_t count) | |
2741 | { | |
2742 | unsigned long t; | |
2743 | int res; | |
2744 | ||
2745 | if (parse_strtoul(buf, 1, &t)) | |
2746 | return -EINVAL; | |
2747 | ||
2748 | res = wan_set_radiosw(t); | |
2749 | ||
2750 | return (res) ? res : count; | |
2751 | } | |
2752 | ||
2753 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2754 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2755 | wan_enable_show, wan_enable_store); |
2756 | ||
2757 | /* --------------------------------------------------------------------- */ | |
2758 | ||
2759 | static struct attribute *wan_attributes[] = { | |
2760 | &dev_attr_wan_enable.attr, | |
2761 | NULL | |
2762 | }; | |
2763 | ||
2764 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2765 | .attrs = wan_attributes, |
2766 | }; | |
2767 | ||
a5763f22 | 2768 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2769 | { |
d3a6ade4 | 2770 | int res; |
d6fdd1e9 HMH |
2771 | int status = 0; |
2772 | ||
fe08bc4b HMH |
2773 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2774 | ||
e0c7dfe7 | 2775 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2776 | |
d8fd94d9 | 2777 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2778 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2779 | ||
2780 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2781 | str_supported(tp_features.wan), | |
2782 | status); | |
2783 | ||
d3a6ade4 HMH |
2784 | if (tp_features.wan) { |
2785 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2786 | /* no wan hardware present in system */ | |
2787 | tp_features.wan = 0; | |
2788 | dbg_printk(TPACPI_DBG_INIT, | |
2789 | "wan hardware not installed\n"); | |
2790 | } else { | |
2791 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2792 | &wan_attr_group); | |
2793 | if (res) | |
2794 | return res; | |
2795 | } | |
d6fdd1e9 | 2796 | } |
fe08bc4b | 2797 | |
d8fd94d9 | 2798 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2799 | } |
2800 | ||
d3a6ade4 HMH |
2801 | static void wan_exit(void) |
2802 | { | |
2803 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2804 | &wan_attr_group); | |
2805 | } | |
2806 | ||
d6fdd1e9 | 2807 | static int wan_get_radiosw(void) |
42adb53c JF |
2808 | { |
2809 | int status; | |
2810 | ||
d6fdd1e9 HMH |
2811 | if (!tp_features.wan) |
2812 | return -ENODEV; | |
42adb53c | 2813 | |
d6fdd1e9 HMH |
2814 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2815 | return -EIO; | |
2816 | ||
2817 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2818 | } | |
2819 | ||
2820 | static int wan_set_radiosw(int radio_on) | |
2821 | { | |
2822 | int status; | |
2823 | ||
2824 | if (!tp_features.wan) | |
2825 | return -ENODEV; | |
2826 | ||
2827 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2828 | return -EIO; | |
2829 | if (radio_on) | |
2830 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2831 | else | |
2832 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2833 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2834 | return -EIO; | |
2835 | ||
2836 | return 0; | |
42adb53c JF |
2837 | } |
2838 | ||
d3a6ade4 | 2839 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2840 | static int wan_read(char *p) |
2841 | { | |
2842 | int len = 0; | |
d6fdd1e9 | 2843 | int status = wan_get_radiosw(); |
42adb53c | 2844 | |
d8fd94d9 | 2845 | if (!tp_features.wan) |
42adb53c | 2846 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2847 | else { |
d6fdd1e9 HMH |
2848 | len += sprintf(p + len, "status:\t\t%s\n", |
2849 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2850 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2851 | } | |
2852 | ||
2853 | return len; | |
2854 | } | |
2855 | ||
2856 | static int wan_write(char *buf) | |
2857 | { | |
42adb53c | 2858 | char *cmd; |
42adb53c | 2859 | |
d8fd94d9 | 2860 | if (!tp_features.wan) |
42adb53c JF |
2861 | return -ENODEV; |
2862 | ||
2863 | while ((cmd = next_cmd(&buf))) { | |
2864 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2865 | wan_set_radiosw(1); |
42adb53c | 2866 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2867 | wan_set_radiosw(0); |
42adb53c JF |
2868 | } else |
2869 | return -EINVAL; | |
42adb53c JF |
2870 | } |
2871 | ||
42adb53c JF |
2872 | return 0; |
2873 | } | |
2874 | ||
a5763f22 HMH |
2875 | static struct ibm_struct wan_driver_data = { |
2876 | .name = "wan", | |
2877 | .read = wan_read, | |
2878 | .write = wan_write, | |
d3a6ade4 | 2879 | .exit = wan_exit, |
92641177 | 2880 | .flags.experimental = 1, |
a5763f22 HMH |
2881 | }; |
2882 | ||
56b6aeb0 HMH |
2883 | /************************************************************************* |
2884 | * Video subdriver | |
2885 | */ | |
2886 | ||
d7c1d17d HMH |
2887 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
2888 | ||
f74a27d4 HMH |
2889 | enum video_access_mode { |
2890 | TPACPI_VIDEO_NONE = 0, | |
2891 | TPACPI_VIDEO_570, /* 570 */ | |
2892 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2893 | TPACPI_VIDEO_NEW, /* all others */ | |
2894 | }; | |
2895 | ||
2896 | enum { /* video status flags, based on VIDEO_570 */ | |
2897 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2898 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2899 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2900 | }; | |
2901 | ||
2902 | enum { /* TPACPI_VIDEO_570 constants */ | |
2903 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2904 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2905 | * video_status_flags */ | |
2906 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2907 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2908 | }; | |
2909 | ||
9a8e1738 HMH |
2910 | static enum video_access_mode video_supported; |
2911 | static int video_orig_autosw; | |
78f81cc4 | 2912 | |
f74a27d4 HMH |
2913 | static int video_autosw_get(void); |
2914 | static int video_autosw_set(int enable); | |
2915 | ||
e0c7dfe7 | 2916 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2917 | |
a5763f22 | 2918 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2919 | { |
78f81cc4 BD |
2920 | int ivga; |
2921 | ||
fe08bc4b HMH |
2922 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2923 | ||
e0c7dfe7 HMH |
2924 | TPACPI_ACPIHANDLE_INIT(vid); |
2925 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2926 | |
78f81cc4 BD |
2927 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2928 | /* G41, assume IVGA doesn't change */ | |
2929 | vid_handle = vid2_handle; | |
2930 | ||
2931 | if (!vid_handle) | |
2932 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2933 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2934 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2935 | /* 570 */ | |
efa27145 | 2936 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2937 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2938 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2939 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2940 | else |
2941 | /* all others */ | |
efa27145 | 2942 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2943 | |
fe08bc4b HMH |
2944 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2945 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2946 | video_supported); | |
2947 | ||
5fba344c | 2948 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2949 | } |
2950 | ||
56b6aeb0 HMH |
2951 | static void video_exit(void) |
2952 | { | |
83f34724 HMH |
2953 | dbg_printk(TPACPI_DBG_EXIT, |
2954 | "restoring original video autoswitch mode\n"); | |
2955 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2956 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2957 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2958 | } |
2959 | ||
83f34724 | 2960 | static int video_outputsw_get(void) |
1da177e4 LT |
2961 | { |
2962 | int status = 0; | |
2963 | int i; | |
2964 | ||
83f34724 HMH |
2965 | switch (video_supported) { |
2966 | case TPACPI_VIDEO_570: | |
2967 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2968 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2969 | return -EIO; | |
2970 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2971 | break; | |
2972 | case TPACPI_VIDEO_770: | |
2973 | if (!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, "\\VCDC", "d")) | |
2978 | return -EIO; | |
2979 | if (i) | |
2980 | status |= TP_ACPI_VIDEO_S_CRT; | |
2981 | break; | |
2982 | case TPACPI_VIDEO_NEW: | |
2983 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2984 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2985 | return -EIO; | |
2986 | if (i) | |
2987 | status |= TP_ACPI_VIDEO_S_CRT; | |
2988 | ||
2989 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2990 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2991 | return -EIO; | |
2992 | if (i) | |
2993 | status |= TP_ACPI_VIDEO_S_LCD; | |
2994 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2995 | return -EIO; | |
2996 | if (i) | |
2997 | status |= TP_ACPI_VIDEO_S_DVI; | |
2998 | break; | |
2999 | default: | |
3000 | return -ENOSYS; | |
78f81cc4 BD |
3001 | } |
3002 | ||
3003 | return status; | |
3004 | } | |
1da177e4 | 3005 | |
83f34724 | 3006 | static int video_outputsw_set(int status) |
78f81cc4 | 3007 | { |
83f34724 HMH |
3008 | int autosw; |
3009 | int res = 0; | |
3010 | ||
3011 | switch (video_supported) { | |
3012 | case TPACPI_VIDEO_570: | |
3013 | res = acpi_evalf(NULL, NULL, | |
3014 | "\\_SB.PHS2", "vdd", | |
3015 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3016 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3017 | break; | |
3018 | case TPACPI_VIDEO_770: | |
3019 | autosw = video_autosw_get(); | |
3020 | if (autosw < 0) | |
3021 | return autosw; | |
1da177e4 | 3022 | |
83f34724 HMH |
3023 | res = video_autosw_set(1); |
3024 | if (res) | |
3025 | return res; | |
3026 | res = acpi_evalf(vid_handle, NULL, | |
3027 | "ASWT", "vdd", status * 0x100, 0); | |
3028 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3029 | printk(TPACPI_ERR |
3030 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3031 | return -EIO; |
3032 | } | |
3033 | break; | |
3034 | case TPACPI_VIDEO_NEW: | |
3035 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3036 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3037 | break; |
3038 | default: | |
3039 | return -ENOSYS; | |
3040 | } | |
1da177e4 | 3041 | |
83f34724 | 3042 | return (res)? 0 : -EIO; |
1da177e4 LT |
3043 | } |
3044 | ||
83f34724 | 3045 | static int video_autosw_get(void) |
78f81cc4 | 3046 | { |
83f34724 | 3047 | int autosw = 0; |
78f81cc4 | 3048 | |
83f34724 HMH |
3049 | switch (video_supported) { |
3050 | case TPACPI_VIDEO_570: | |
3051 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3052 | return -EIO; | |
3053 | break; | |
3054 | case TPACPI_VIDEO_770: | |
3055 | case TPACPI_VIDEO_NEW: | |
3056 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3057 | return -EIO; | |
3058 | break; | |
3059 | default: | |
3060 | return -ENOSYS; | |
3061 | } | |
78f81cc4 | 3062 | |
83f34724 | 3063 | return autosw & 1; |
78f81cc4 BD |
3064 | } |
3065 | ||
83f34724 | 3066 | static int video_autosw_set(int enable) |
78f81cc4 | 3067 | { |
83f34724 HMH |
3068 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3069 | return -EIO; | |
3070 | return 0; | |
78f81cc4 BD |
3071 | } |
3072 | ||
83f34724 | 3073 | static int video_outputsw_cycle(void) |
78f81cc4 | 3074 | { |
83f34724 HMH |
3075 | int autosw = video_autosw_get(); |
3076 | int res; | |
78f81cc4 | 3077 | |
83f34724 HMH |
3078 | if (autosw < 0) |
3079 | return autosw; | |
78f81cc4 | 3080 | |
83f34724 HMH |
3081 | switch (video_supported) { |
3082 | case TPACPI_VIDEO_570: | |
3083 | res = video_autosw_set(1); | |
3084 | if (res) | |
3085 | return res; | |
3086 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3087 | break; | |
3088 | case TPACPI_VIDEO_770: | |
3089 | case TPACPI_VIDEO_NEW: | |
3090 | res = video_autosw_set(1); | |
3091 | if (res) | |
3092 | return res; | |
3093 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3094 | break; | |
3095 | default: | |
3096 | return -ENOSYS; | |
3097 | } | |
3098 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3099 | printk(TPACPI_ERR |
3100 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3101 | return -EIO; |
78f81cc4 BD |
3102 | } |
3103 | ||
83f34724 HMH |
3104 | return (res)? 0 : -EIO; |
3105 | } | |
3106 | ||
3107 | static int video_expand_toggle(void) | |
3108 | { | |
3109 | switch (video_supported) { | |
3110 | case TPACPI_VIDEO_570: | |
3111 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3112 | 0 : -EIO; | |
3113 | case TPACPI_VIDEO_770: | |
3114 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3115 | 0 : -EIO; | |
3116 | case TPACPI_VIDEO_NEW: | |
3117 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3118 | 0 : -EIO; | |
3119 | default: | |
3120 | return -ENOSYS; | |
3121 | } | |
3122 | /* not reached */ | |
78f81cc4 BD |
3123 | } |
3124 | ||
56b6aeb0 HMH |
3125 | static int video_read(char *p) |
3126 | { | |
83f34724 | 3127 | int status, autosw; |
56b6aeb0 HMH |
3128 | int len = 0; |
3129 | ||
83f34724 | 3130 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3131 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3132 | return len; | |
3133 | } | |
3134 | ||
83f34724 HMH |
3135 | status = video_outputsw_get(); |
3136 | if (status < 0) | |
3137 | return status; | |
3138 | ||
3139 | autosw = video_autosw_get(); | |
3140 | if (autosw < 0) | |
3141 | return autosw; | |
3142 | ||
56b6aeb0 HMH |
3143 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3144 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3145 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3146 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3147 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3148 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3149 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3150 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3151 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3152 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3153 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3154 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3155 | ||
3156 | return len; | |
3157 | } | |
3158 | ||
78f81cc4 | 3159 | static int video_write(char *buf) |
1da177e4 LT |
3160 | { |
3161 | char *cmd; | |
3162 | int enable, disable, status; | |
83f34724 | 3163 | int res; |
1da177e4 | 3164 | |
83f34724 | 3165 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3166 | return -ENODEV; |
3167 | ||
83f34724 HMH |
3168 | enable = 0; |
3169 | disable = 0; | |
1da177e4 LT |
3170 | |
3171 | while ((cmd = next_cmd(&buf))) { | |
3172 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3173 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3174 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3175 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3176 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3177 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3178 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3179 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3180 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3181 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3182 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3183 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3184 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3185 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3186 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3187 | res = video_autosw_set(1); |
3188 | if (res) | |
3189 | return res; | |
1da177e4 | 3190 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3191 | res = video_autosw_set(0); |
3192 | if (res) | |
3193 | return res; | |
1da177e4 | 3194 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3195 | res = video_outputsw_cycle(); |
3196 | if (res) | |
3197 | return res; | |
1da177e4 | 3198 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3199 | res = video_expand_toggle(); |
3200 | if (res) | |
3201 | return res; | |
1da177e4 LT |
3202 | } else |
3203 | return -EINVAL; | |
3204 | } | |
3205 | ||
3206 | if (enable || disable) { | |
83f34724 HMH |
3207 | status = video_outputsw_get(); |
3208 | if (status < 0) | |
3209 | return status; | |
3210 | res = video_outputsw_set((status & ~disable) | enable); | |
3211 | if (res) | |
3212 | return res; | |
1da177e4 LT |
3213 | } |
3214 | ||
3215 | return 0; | |
3216 | } | |
3217 | ||
a5763f22 HMH |
3218 | static struct ibm_struct video_driver_data = { |
3219 | .name = "video", | |
3220 | .read = video_read, | |
3221 | .write = video_write, | |
3222 | .exit = video_exit, | |
3223 | }; | |
3224 | ||
d7c1d17d HMH |
3225 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3226 | ||
56b6aeb0 HMH |
3227 | /************************************************************************* |
3228 | * Light (thinklight) subdriver | |
3229 | */ | |
1da177e4 | 3230 | |
e0c7dfe7 HMH |
3231 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3232 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3233 | |
a5763f22 | 3234 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3235 | { |
fe08bc4b HMH |
3236 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3237 | ||
e0c7dfe7 HMH |
3238 | TPACPI_ACPIHANDLE_INIT(ledb); |
3239 | TPACPI_ACPIHANDLE_INIT(lght); | |
3240 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 3241 | |
78f81cc4 | 3242 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3243 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3244 | |
d8fd94d9 | 3245 | if (tp_features.light) |
78f81cc4 BD |
3246 | /* light status not supported on |
3247 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3248 | tp_features.light_status = |
3249 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3250 | |
fe08bc4b | 3251 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3252 | str_supported(tp_features.light)); |
fe08bc4b | 3253 | |
d8fd94d9 | 3254 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
3255 | } |
3256 | ||
78f81cc4 | 3257 | static int light_read(char *p) |
1da177e4 LT |
3258 | { |
3259 | int len = 0; | |
3260 | int status = 0; | |
3261 | ||
d8fd94d9 | 3262 | if (!tp_features.light) { |
78f81cc4 | 3263 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3264 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3265 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3266 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3267 | } else { | |
1da177e4 LT |
3268 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
3269 | return -EIO; | |
3270 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
3271 | len += sprintf(p + len, "commands:\ton, off\n"); |
3272 | } | |
1da177e4 LT |
3273 | |
3274 | return len; | |
3275 | } | |
3276 | ||
78f81cc4 | 3277 | static int light_write(char *buf) |
1da177e4 LT |
3278 | { |
3279 | int cmos_cmd, lght_cmd; | |
3280 | char *cmd; | |
3281 | int success; | |
78f81cc4 | 3282 | |
d8fd94d9 | 3283 | if (!tp_features.light) |
78f81cc4 BD |
3284 | return -ENODEV; |
3285 | ||
1da177e4 LT |
3286 | while ((cmd = next_cmd(&buf))) { |
3287 | if (strlencmp(cmd, "on") == 0) { | |
3288 | cmos_cmd = 0x0c; | |
3289 | lght_cmd = 1; | |
3290 | } else if (strlencmp(cmd, "off") == 0) { | |
3291 | cmos_cmd = 0x0d; | |
3292 | lght_cmd = 0; | |
3293 | } else | |
3294 | return -EINVAL; | |
78f81cc4 | 3295 | |
1da177e4 | 3296 | success = cmos_handle ? |
78f81cc4 BD |
3297 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
3298 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
3299 | if (!success) |
3300 | return -EIO; | |
3301 | } | |
3302 | ||
3303 | return 0; | |
3304 | } | |
3305 | ||
a5763f22 HMH |
3306 | static struct ibm_struct light_driver_data = { |
3307 | .name = "light", | |
3308 | .read = light_read, | |
3309 | .write = light_write, | |
3310 | }; | |
3311 | ||
56b6aeb0 HMH |
3312 | /************************************************************************* |
3313 | * Dock subdriver | |
3314 | */ | |
1da177e4 | 3315 | |
85998248 | 3316 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3317 | |
f74a27d4 HMH |
3318 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3319 | static int dock_read(char *p); | |
3320 | static int dock_write(char *buf); | |
3321 | ||
e0c7dfe7 | 3322 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3323 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3324 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3325 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3326 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3327 | ||
5fba344c | 3328 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3329 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3330 | |
1ba90e3a TR |
3331 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3332 | {PCI_ROOT_HID_STRING, 0}, | |
3333 | {"", 0}, | |
3334 | }; | |
3335 | ||
d94a7f16 HMH |
3336 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3337 | { | |
3338 | .notify = dock_notify, | |
3339 | .handle = &dock_handle, | |
3340 | .type = ACPI_SYSTEM_NOTIFY, | |
3341 | }, | |
3342 | { | |
996fba08 HMH |
3343 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3344 | * We just use it to get notifications of dock hotplug | |
3345 | * in very old thinkpads */ | |
1ba90e3a | 3346 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3347 | .notify = dock_notify, |
3348 | .handle = &pci_handle, | |
3349 | .type = ACPI_SYSTEM_NOTIFY, | |
3350 | }, | |
3351 | }; | |
3352 | ||
3353 | static struct ibm_struct dock_driver_data[2] = { | |
3354 | { | |
3355 | .name = "dock", | |
3356 | .read = dock_read, | |
3357 | .write = dock_write, | |
3358 | .acpi = &ibm_dock_acpidriver[0], | |
3359 | }, | |
3360 | { | |
3361 | .name = "dock", | |
3362 | .acpi = &ibm_dock_acpidriver[1], | |
3363 | }, | |
3364 | }; | |
3365 | ||
1da177e4 LT |
3366 | #define dock_docked() (_sta(dock_handle) & 1) |
3367 | ||
a5763f22 | 3368 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3369 | { |
fe08bc4b HMH |
3370 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3371 | ||
e0c7dfe7 | 3372 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3373 | |
fe08bc4b HMH |
3374 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3375 | str_supported(dock_handle != NULL)); | |
3376 | ||
5fba344c HMH |
3377 | return (dock_handle)? 0 : 1; |
3378 | } | |
3379 | ||
d94a7f16 HMH |
3380 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3381 | { | |
3382 | int dock2_needed; | |
3383 | ||
3384 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3385 | ||
3386 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3387 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3388 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3389 | dock2_needed = (pci_handle != NULL); |
3390 | vdbg_printk(TPACPI_DBG_INIT, | |
3391 | "dock PCI handler for the TP 570 is %s\n", | |
3392 | str_supported(dock2_needed)); | |
3393 | } else { | |
3394 | vdbg_printk(TPACPI_DBG_INIT, | |
3395 | "dock subdriver part 2 not required\n"); | |
3396 | dock2_needed = 0; | |
3397 | } | |
3398 | ||
3399 | return (dock2_needed)? 0 : 1; | |
3400 | } | |
3401 | ||
56b6aeb0 HMH |
3402 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3403 | { | |
3404 | int docked = dock_docked(); | |
1ba90e3a TR |
3405 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3406 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3407 | int data; |
56b6aeb0 HMH |
3408 | |
3409 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3410 | data = 1; /* button */ |
56b6aeb0 | 3411 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3412 | data = 3; /* dock */ |
56b6aeb0 | 3413 | else if (event == 3 && docked) |
962ce8ca | 3414 | data = 1; /* button */ |
56b6aeb0 | 3415 | else if (event == 3 && !docked) |
962ce8ca | 3416 | data = 2; /* undock */ |
56b6aeb0 | 3417 | else if (event == 0 && docked) |
962ce8ca | 3418 | data = 3; /* dock */ |
56b6aeb0 | 3419 | else { |
e0c7dfe7 | 3420 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3421 | event, _sta(dock_handle)); |
962ce8ca | 3422 | data = 0; /* unknown */ |
56b6aeb0 | 3423 | } |
14e04fb3 | 3424 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3425 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3426 | ibm->acpi->device->dev.bus_id, | |
3427 | event, data); | |
56b6aeb0 HMH |
3428 | } |
3429 | ||
78f81cc4 | 3430 | static int dock_read(char *p) |
1da177e4 LT |
3431 | { |
3432 | int len = 0; | |
3433 | int docked = dock_docked(); | |
3434 | ||
3435 | if (!dock_handle) | |
3436 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3437 | else if (!docked) | |
3438 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3439 | else { | |
3440 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3441 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3442 | } | |
3443 | ||
3444 | return len; | |
3445 | } | |
3446 | ||
78f81cc4 | 3447 | static int dock_write(char *buf) |
1da177e4 LT |
3448 | { |
3449 | char *cmd; | |
3450 | ||
3451 | if (!dock_docked()) | |
78f81cc4 | 3452 | return -ENODEV; |
1da177e4 LT |
3453 | |
3454 | while ((cmd = next_cmd(&buf))) { | |
3455 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3456 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3457 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3458 | return -EIO; |
3459 | } else if (strlencmp(cmd, "dock") == 0) { | |
3460 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3461 | return -EIO; | |
3462 | } else | |
3463 | return -EINVAL; | |
1da177e4 | 3464 | } |
56b6aeb0 HMH |
3465 | |
3466 | return 0; | |
1da177e4 | 3467 | } |
56b6aeb0 | 3468 | |
85998248 | 3469 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3470 | |
3471 | /************************************************************************* | |
3472 | * Bay subdriver | |
3473 | */ | |
1da177e4 | 3474 | |
85998248 | 3475 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3476 | |
e0c7dfe7 | 3477 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3478 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3479 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3480 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3481 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3482 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3483 | "_EJ0", /* all others */ |
3484 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3485 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3486 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3487 | ); /* all others */ | |
e0c7dfe7 | 3488 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3489 | "_EJ0", /* 770x */ |
3490 | ); /* all others */ | |
3491 | ||
a5763f22 | 3492 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3493 | { |
fe08bc4b HMH |
3494 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3495 | ||
e0c7dfe7 | 3496 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3497 | if (bay_handle) |
e0c7dfe7 HMH |
3498 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3499 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3500 | if (bay2_handle) |
e0c7dfe7 | 3501 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3502 | |
d8fd94d9 HMH |
3503 | tp_features.bay_status = bay_handle && |
3504 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3505 | tp_features.bay_status2 = bay2_handle && | |
3506 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3507 | |
d8fd94d9 HMH |
3508 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3509 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3510 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3511 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3512 | |
fe08bc4b HMH |
3513 | vdbg_printk(TPACPI_DBG_INIT, |
3514 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3515 | str_supported(tp_features.bay_status), |
3516 | str_supported(tp_features.bay_eject), | |
3517 | str_supported(tp_features.bay_status2), | |
3518 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3519 | |
d8fd94d9 HMH |
3520 | return (tp_features.bay_status || tp_features.bay_eject || |
3521 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3522 | } |
3523 | ||
56b6aeb0 HMH |
3524 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3525 | { | |
14e04fb3 | 3526 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3527 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3528 | ibm->acpi->device->dev.bus_id, | |
3529 | event, 0); | |
56b6aeb0 HMH |
3530 | } |
3531 | ||
78f81cc4 BD |
3532 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3533 | ||
3534 | static int bay_read(char *p) | |
1da177e4 LT |
3535 | { |
3536 | int len = 0; | |
78f81cc4 BD |
3537 | int occupied = bay_occupied(bay); |
3538 | int occupied2 = bay_occupied(bay2); | |
3539 | int eject, eject2; | |
3540 | ||
d8fd94d9 HMH |
3541 | len += sprintf(p + len, "status:\t\t%s\n", |
3542 | tp_features.bay_status ? | |
3543 | (occupied ? "occupied" : "unoccupied") : | |
3544 | "not supported"); | |
3545 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3546 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3547 | "occupied" : "unoccupied"); | |
3548 | ||
d8fd94d9 HMH |
3549 | eject = tp_features.bay_eject && occupied; |
3550 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3551 | |
3552 | if (eject && eject2) | |
3553 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3554 | else if (eject) | |
1da177e4 | 3555 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3556 | else if (eject2) |
3557 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3558 | |
3559 | return len; | |
3560 | } | |
3561 | ||
78f81cc4 | 3562 | static int bay_write(char *buf) |
1da177e4 LT |
3563 | { |
3564 | char *cmd; | |
3565 | ||
d8fd94d9 | 3566 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3567 | return -ENODEV; |
3568 | ||
1da177e4 | 3569 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3570 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3571 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3572 | return -EIO; | |
d8fd94d9 | 3573 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3574 | strlencmp(cmd, "eject2") == 0) { |
3575 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3576 | return -EIO; |
3577 | } else | |
3578 | return -EINVAL; | |
3579 | } | |
3580 | ||
3581 | return 0; | |
78f81cc4 | 3582 | } |
a5763f22 | 3583 | |
8d376cd6 HMH |
3584 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3585 | .notify = bay_notify, | |
3586 | .handle = &bay_handle, | |
3587 | .type = ACPI_SYSTEM_NOTIFY, | |
3588 | }; | |
3589 | ||
a5763f22 HMH |
3590 | static struct ibm_struct bay_driver_data = { |
3591 | .name = "bay", | |
3592 | .read = bay_read, | |
3593 | .write = bay_write, | |
8d376cd6 | 3594 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3595 | }; |
3596 | ||
85998248 | 3597 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3598 | |
56b6aeb0 HMH |
3599 | /************************************************************************* |
3600 | * CMOS subdriver | |
3601 | */ | |
3602 | ||
b616004c HMH |
3603 | /* sysfs cmos_command -------------------------------------------------- */ |
3604 | static ssize_t cmos_command_store(struct device *dev, | |
3605 | struct device_attribute *attr, | |
3606 | const char *buf, size_t count) | |
3607 | { | |
3608 | unsigned long cmos_cmd; | |
3609 | int res; | |
3610 | ||
3611 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3612 | return -EINVAL; | |
3613 | ||
3614 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3615 | return (res)? res : count; | |
3616 | } | |
3617 | ||
3618 | static struct device_attribute dev_attr_cmos_command = | |
3619 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3620 | ||
3621 | /* --------------------------------------------------------------------- */ | |
3622 | ||
a5763f22 | 3623 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3624 | { |
b616004c HMH |
3625 | int res; |
3626 | ||
fe08bc4b HMH |
3627 | vdbg_printk(TPACPI_DBG_INIT, |
3628 | "initializing cmos commands subdriver\n"); | |
3629 | ||
e0c7dfe7 | 3630 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3631 | |
fe08bc4b HMH |
3632 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3633 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3634 | |
3635 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3636 | if (res) | |
3637 | return res; | |
3638 | ||
5fba344c HMH |
3639 | return (cmos_handle)? 0 : 1; |
3640 | } | |
3641 | ||
b616004c HMH |
3642 | static void cmos_exit(void) |
3643 | { | |
3644 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3645 | } | |
3646 | ||
78f81cc4 | 3647 | static int cmos_read(char *p) |
1da177e4 LT |
3648 | { |
3649 | int len = 0; | |
3650 | ||
78f81cc4 BD |
3651 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3652 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3653 | if (!cmos_handle) |
3654 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3655 | else { | |
3656 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3657 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3658 | } |
3659 | ||
3660 | return len; | |
3661 | } | |
3662 | ||
78f81cc4 | 3663 | static int cmos_write(char *buf) |
1da177e4 LT |
3664 | { |
3665 | char *cmd; | |
c9bea99c | 3666 | int cmos_cmd, res; |
1da177e4 LT |
3667 | |
3668 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3669 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3670 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3671 | /* cmos_cmd set */ |
3672 | } else | |
3673 | return -EINVAL; | |
3674 | ||
c9bea99c HMH |
3675 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3676 | if (res) | |
3677 | return res; | |
1da177e4 LT |
3678 | } |
3679 | ||
3680 | return 0; | |
78f81cc4 BD |
3681 | } |
3682 | ||
a5763f22 HMH |
3683 | static struct ibm_struct cmos_driver_data = { |
3684 | .name = "cmos", | |
3685 | .read = cmos_read, | |
3686 | .write = cmos_write, | |
b616004c | 3687 | .exit = cmos_exit, |
a5763f22 | 3688 | }; |
56b6aeb0 HMH |
3689 | |
3690 | /************************************************************************* | |
3691 | * LED subdriver | |
3692 | */ | |
3693 | ||
f74a27d4 HMH |
3694 | enum led_access_mode { |
3695 | TPACPI_LED_NONE = 0, | |
3696 | TPACPI_LED_570, /* 570 */ | |
3697 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3698 | TPACPI_LED_NEW, /* all others */ | |
3699 | }; | |
3700 | ||
3701 | enum { /* For TPACPI_LED_OLD */ | |
3702 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3703 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3704 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3705 | }; | |
3706 | ||
9a8e1738 | 3707 | static enum led_access_mode led_supported; |
78f81cc4 | 3708 | |
e0c7dfe7 | 3709 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3710 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3711 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3712 | "LED", /* all others */ |
3713 | ); /* R30, R31 */ | |
3714 | ||
a5763f22 | 3715 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3716 | { |
fe08bc4b HMH |
3717 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3718 | ||
e0c7dfe7 | 3719 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3720 | |
78f81cc4 BD |
3721 | if (!led_handle) |
3722 | /* led not supported on R30, R31 */ | |
efa27145 | 3723 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3724 | else if (strlencmp(led_path, "SLED") == 0) |
3725 | /* 570 */ | |
efa27145 | 3726 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3727 | else if (strlencmp(led_path, "SYSL") == 0) |
3728 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3729 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3730 | else |
3731 | /* all others */ | |
efa27145 | 3732 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3733 | |
fe08bc4b HMH |
3734 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3735 | str_supported(led_supported), led_supported); | |
3736 | ||
5fba344c | 3737 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3738 | } |
3739 | ||
3740 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3741 | ||
3742 | static int led_read(char *p) | |
1da177e4 LT |
3743 | { |
3744 | int len = 0; | |
3745 | ||
78f81cc4 BD |
3746 | if (!led_supported) { |
3747 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3748 | return len; | |
3749 | } | |
3750 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3751 | ||
efa27145 | 3752 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3753 | /* 570 */ |
3754 | int i, status; | |
3755 | for (i = 0; i < 8; i++) { | |
3756 | if (!acpi_evalf(ec_handle, | |
3757 | &status, "GLED", "dd", 1 << i)) | |
3758 | return -EIO; | |
3759 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3760 | i, led_status(status)); | |
3761 | } | |
3762 | } | |
3763 | ||
1da177e4 | 3764 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3765 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3766 | |
3767 | return len; | |
3768 | } | |
3769 | ||
78f81cc4 BD |
3770 | /* off, on, blink */ |
3771 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3772 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3773 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3774 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3775 | ||
78f81cc4 | 3776 | static int led_write(char *buf) |
1da177e4 LT |
3777 | { |
3778 | char *cmd; | |
78f81cc4 BD |
3779 | int led, ind, ret; |
3780 | ||
3781 | if (!led_supported) | |
3782 | return -ENODEV; | |
1da177e4 LT |
3783 | |
3784 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3785 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3786 | return -EINVAL; |
3787 | ||
78f81cc4 BD |
3788 | if (strstr(cmd, "off")) { |
3789 | ind = 0; | |
1da177e4 | 3790 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3791 | ind = 1; |
3792 | } else if (strstr(cmd, "blink")) { | |
3793 | ind = 2; | |
1da177e4 LT |
3794 | } else |
3795 | return -EINVAL; | |
78f81cc4 | 3796 | |
efa27145 | 3797 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3798 | /* 570 */ |
3799 | led = 1 << led; | |
1da177e4 | 3800 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3801 | led, led_sled_arg1[ind])) |
1da177e4 | 3802 | return -EIO; |
efa27145 | 3803 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3804 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3805 | led = 1 << led; | |
efa27145 | 3806 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 | 3807 | if (ret >= 0) |
35ff8b9f HMH |
3808 | ret = ec_write(TPACPI_LED_EC_HLBL, |
3809 | led * led_exp_hlbl[ind]); | |
78f81cc4 | 3810 | if (ret >= 0) |
35ff8b9f HMH |
3811 | ret = ec_write(TPACPI_LED_EC_HLCL, |
3812 | led * led_exp_hlcl[ind]); | |
78f81cc4 BD |
3813 | if (ret < 0) |
3814 | return ret; | |
3815 | } else { | |
3816 | /* all others */ | |
3817 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3818 | led, led_led_arg1[ind])) | |
1da177e4 | 3819 | return -EIO; |
78f81cc4 BD |
3820 | } |
3821 | } | |
3822 | ||
3823 | return 0; | |
3824 | } | |
3825 | ||
a5763f22 HMH |
3826 | static struct ibm_struct led_driver_data = { |
3827 | .name = "led", | |
3828 | .read = led_read, | |
3829 | .write = led_write, | |
3830 | }; | |
3831 | ||
56b6aeb0 HMH |
3832 | /************************************************************************* |
3833 | * Beep subdriver | |
3834 | */ | |
3835 | ||
e0c7dfe7 | 3836 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3837 | |
a5763f22 | 3838 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3839 | { |
fe08bc4b HMH |
3840 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3841 | ||
e0c7dfe7 | 3842 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3843 | |
fe08bc4b HMH |
3844 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3845 | str_supported(beep_handle != NULL)); | |
3846 | ||
5fba344c HMH |
3847 | return (beep_handle)? 0 : 1; |
3848 | } | |
3849 | ||
78f81cc4 BD |
3850 | static int beep_read(char *p) |
3851 | { | |
3852 | int len = 0; | |
3853 | ||
3854 | if (!beep_handle) | |
3855 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3856 | else { | |
3857 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3858 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3859 | } | |
3860 | ||
3861 | return len; | |
3862 | } | |
3863 | ||
3864 | static int beep_write(char *buf) | |
3865 | { | |
3866 | char *cmd; | |
3867 | int beep_cmd; | |
3868 | ||
3869 | if (!beep_handle) | |
3870 | return -ENODEV; | |
3871 | ||
3872 | while ((cmd = next_cmd(&buf))) { | |
3873 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3874 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3875 | /* beep_cmd set */ | |
3876 | } else | |
3877 | return -EINVAL; | |
3878 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3879 | return -EIO; | |
3880 | } | |
3881 | ||
3882 | return 0; | |
3883 | } | |
3884 | ||
a5763f22 HMH |
3885 | static struct ibm_struct beep_driver_data = { |
3886 | .name = "beep", | |
3887 | .read = beep_read, | |
3888 | .write = beep_write, | |
3889 | }; | |
3890 | ||
56b6aeb0 HMH |
3891 | /************************************************************************* |
3892 | * Thermal subdriver | |
3893 | */ | |
78f81cc4 | 3894 | |
f74a27d4 HMH |
3895 | enum thermal_access_mode { |
3896 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3897 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3898 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3899 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3900 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3901 | }; | |
3902 | ||
3903 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3904 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3905 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3906 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3907 | }; | |
3908 | ||
3909 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3910 | struct ibm_thermal_sensors_struct { | |
3911 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3912 | }; | |
3913 | ||
a26f878a | 3914 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3915 | |
b21a15f6 HMH |
3916 | /* idx is zero-based */ |
3917 | static int thermal_get_sensor(int idx, s32 *value) | |
3918 | { | |
3919 | int t; | |
3920 | s8 tmp; | |
3921 | char tmpi[5]; | |
3922 | ||
3923 | t = TP_EC_THERMAL_TMP0; | |
3924 | ||
3925 | switch (thermal_read_mode) { | |
3926 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3927 | case TPACPI_THERMAL_TPEC_16: | |
3928 | if (idx >= 8 && idx <= 15) { | |
3929 | t = TP_EC_THERMAL_TMP8; | |
3930 | idx -= 8; | |
3931 | } | |
3932 | /* fallthrough */ | |
3933 | #endif | |
3934 | case TPACPI_THERMAL_TPEC_8: | |
3935 | if (idx <= 7) { | |
3936 | if (!acpi_ec_read(t + idx, &tmp)) | |
3937 | return -EIO; | |
3938 | *value = tmp * 1000; | |
3939 | return 0; | |
3940 | } | |
3941 | break; | |
3942 | ||
3943 | case TPACPI_THERMAL_ACPI_UPDT: | |
3944 | if (idx <= 7) { | |
3945 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3946 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3947 | return -EIO; | |
3948 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3949 | return -EIO; | |
3950 | *value = (t - 2732) * 100; | |
3951 | return 0; | |
3952 | } | |
3953 | break; | |
3954 | ||
3955 | case TPACPI_THERMAL_ACPI_TMP07: | |
3956 | if (idx <= 7) { | |
3957 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3958 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3959 | return -EIO; | |
3960 | if (t > 127 || t < -127) | |
3961 | t = TP_EC_THERMAL_TMP_NA; | |
3962 | *value = t * 1000; | |
3963 | return 0; | |
3964 | } | |
3965 | break; | |
3966 | ||
3967 | case TPACPI_THERMAL_NONE: | |
3968 | default: | |
3969 | return -ENOSYS; | |
3970 | } | |
3971 | ||
3972 | return -EINVAL; | |
3973 | } | |
3974 | ||
3975 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3976 | { | |
3977 | int res, i; | |
3978 | int n; | |
3979 | ||
3980 | n = 8; | |
3981 | i = 0; | |
3982 | ||
3983 | if (!s) | |
3984 | return -EINVAL; | |
3985 | ||
3986 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3987 | n = 16; | |
3988 | ||
35ff8b9f | 3989 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
3990 | res = thermal_get_sensor(i, &s->temp[i]); |
3991 | if (res) | |
3992 | return res; | |
3993 | } | |
3994 | ||
3995 | return n; | |
3996 | } | |
f74a27d4 | 3997 | |
2c37aa4e HMH |
3998 | /* sysfs temp##_input -------------------------------------------------- */ |
3999 | ||
4000 | static ssize_t thermal_temp_input_show(struct device *dev, | |
4001 | struct device_attribute *attr, | |
4002 | char *buf) | |
4003 | { | |
4004 | struct sensor_device_attribute *sensor_attr = | |
4005 | to_sensor_dev_attr(attr); | |
4006 | int idx = sensor_attr->index; | |
4007 | s32 value; | |
4008 | int res; | |
4009 | ||
4010 | res = thermal_get_sensor(idx, &value); | |
4011 | if (res) | |
4012 | return res; | |
4013 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
4014 | return -ENXIO; | |
4015 | ||
4016 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
4017 | } | |
4018 | ||
4019 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
4020 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
4021 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
4022 | |
4023 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
4024 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
4025 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
4026 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
4027 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
4028 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
4029 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
4030 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
4031 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
4032 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
4033 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
4034 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
4035 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
4036 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
4037 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
4038 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
4039 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
4040 | }; | |
4041 | ||
4042 | #define THERMAL_ATTRS(X) \ | |
4043 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
4044 | ||
4045 | static struct attribute *thermal_temp_input_attr[] = { | |
4046 | THERMAL_ATTRS(8), | |
4047 | THERMAL_ATTRS(9), | |
4048 | THERMAL_ATTRS(10), | |
4049 | THERMAL_ATTRS(11), | |
4050 | THERMAL_ATTRS(12), | |
4051 | THERMAL_ATTRS(13), | |
4052 | THERMAL_ATTRS(14), | |
4053 | THERMAL_ATTRS(15), | |
4054 | THERMAL_ATTRS(0), | |
4055 | THERMAL_ATTRS(1), | |
4056 | THERMAL_ATTRS(2), | |
4057 | THERMAL_ATTRS(3), | |
4058 | THERMAL_ATTRS(4), | |
4059 | THERMAL_ATTRS(5), | |
4060 | THERMAL_ATTRS(6), | |
4061 | THERMAL_ATTRS(7), | |
4062 | NULL | |
4063 | }; | |
4064 | ||
4065 | static const struct attribute_group thermal_temp_input16_group = { | |
4066 | .attrs = thermal_temp_input_attr | |
4067 | }; | |
4068 | ||
4069 | static const struct attribute_group thermal_temp_input8_group = { | |
4070 | .attrs = &thermal_temp_input_attr[8] | |
4071 | }; | |
4072 | ||
4073 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4074 | #undef THERMAL_ATTRS | |
4075 | ||
4076 | /* --------------------------------------------------------------------- */ | |
4077 | ||
a5763f22 | 4078 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4079 | { |
60eb0b35 HMH |
4080 | u8 t, ta1, ta2; |
4081 | int i; | |
5fba344c | 4082 | int acpi_tmp7; |
2c37aa4e | 4083 | int res; |
5fba344c | 4084 | |
fe08bc4b HMH |
4085 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4086 | ||
5fba344c | 4087 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4088 | |
3d6f99ca | 4089 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4090 | /* |
4091 | * Direct EC access mode: sensors at registers | |
4092 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4093 | * non-implemented, thermal sensors return 0x80 when | |
4094 | * not available | |
4095 | */ | |
78f81cc4 | 4096 | |
60eb0b35 HMH |
4097 | ta1 = ta2 = 0; |
4098 | for (i = 0; i < 8; i++) { | |
04cc862c | 4099 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4100 | ta1 |= t; |
4101 | } else { | |
4102 | ta1 = 0; | |
4103 | break; | |
4104 | } | |
04cc862c | 4105 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4106 | ta2 |= t; |
4107 | } else { | |
4108 | ta1 = 0; | |
4109 | break; | |
4110 | } | |
4111 | } | |
4112 | if (ta1 == 0) { | |
4113 | /* This is sheer paranoia, but we handle it anyway */ | |
4114 | if (acpi_tmp7) { | |
e0c7dfe7 | 4115 | printk(TPACPI_ERR |
60eb0b35 | 4116 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
4117 | "falling back to ACPI TMPx access " |
4118 | "mode\n"); | |
efa27145 | 4119 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 4120 | } else { |
e0c7dfe7 | 4121 | printk(TPACPI_ERR |
60eb0b35 HMH |
4122 | "ThinkPad ACPI EC access misbehaving, " |
4123 | "disabling thermal sensors access\n"); | |
efa27145 | 4124 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4125 | } |
4126 | } else { | |
4127 | thermal_read_mode = | |
4128 | (ta2 != 0) ? | |
efa27145 | 4129 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4130 | } |
4131 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4132 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4133 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4134 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4135 | } else { |
4136 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4137 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4138 | } |
4139 | } else { | |
4140 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4141 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4142 | } |
78f81cc4 | 4143 | |
fe08bc4b HMH |
4144 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4145 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4146 | thermal_read_mode); | |
4147 | ||
35ff8b9f | 4148 | switch (thermal_read_mode) { |
2c37aa4e | 4149 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4150 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4151 | &thermal_temp_input16_group); |
4152 | if (res) | |
4153 | return res; | |
4154 | break; | |
4155 | case TPACPI_THERMAL_TPEC_8: | |
4156 | case TPACPI_THERMAL_ACPI_TMP07: | |
4157 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4158 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4159 | &thermal_temp_input8_group); |
4160 | if (res) | |
4161 | return res; | |
4162 | break; | |
4163 | case TPACPI_THERMAL_NONE: | |
4164 | default: | |
4165 | return 1; | |
4166 | } | |
4167 | ||
4168 | return 0; | |
4169 | } | |
4170 | ||
4171 | static void thermal_exit(void) | |
4172 | { | |
35ff8b9f | 4173 | switch (thermal_read_mode) { |
2c37aa4e | 4174 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4175 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4176 | &thermal_temp_input16_group); |
4177 | break; | |
4178 | case TPACPI_THERMAL_TPEC_8: | |
4179 | case TPACPI_THERMAL_ACPI_TMP07: | |
4180 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4181 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4182 | &thermal_temp_input16_group); |
4183 | break; | |
4184 | case TPACPI_THERMAL_NONE: | |
4185 | default: | |
4186 | break; | |
4187 | } | |
78f81cc4 BD |
4188 | } |
4189 | ||
a26f878a HMH |
4190 | static int thermal_read(char *p) |
4191 | { | |
4192 | int len = 0; | |
4193 | int n, i; | |
4194 | struct ibm_thermal_sensors_struct t; | |
4195 | ||
4196 | n = thermal_get_sensors(&t); | |
4197 | if (unlikely(n < 0)) | |
4198 | return n; | |
4199 | ||
4200 | len += sprintf(p + len, "temperatures:\t"); | |
4201 | ||
4202 | if (n > 0) { | |
4203 | for (i = 0; i < (n - 1); i++) | |
4204 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4205 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4206 | } else | |
4207 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4208 | |
4209 | return len; | |
4210 | } | |
4211 | ||
a5763f22 HMH |
4212 | static struct ibm_struct thermal_driver_data = { |
4213 | .name = "thermal", | |
4214 | .read = thermal_read, | |
2c37aa4e | 4215 | .exit = thermal_exit, |
a5763f22 HMH |
4216 | }; |
4217 | ||
56b6aeb0 HMH |
4218 | /************************************************************************* |
4219 | * EC Dump subdriver | |
4220 | */ | |
4221 | ||
78f81cc4 BD |
4222 | static u8 ecdump_regs[256]; |
4223 | ||
4224 | static int ecdump_read(char *p) | |
4225 | { | |
4226 | int len = 0; | |
4227 | int i, j; | |
4228 | u8 v; | |
4229 | ||
4230 | len += sprintf(p + len, "EC " | |
4231 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4232 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4233 | for (i = 0; i < 256; i += 16) { | |
4234 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4235 | for (j = 0; j < 16; j++) { | |
4236 | if (!acpi_ec_read(i + j, &v)) | |
4237 | break; | |
4238 | if (v != ecdump_regs[i + j]) | |
4239 | len += sprintf(p + len, " *%02x", v); | |
4240 | else | |
4241 | len += sprintf(p + len, " %02x", v); | |
4242 | ecdump_regs[i + j] = v; | |
4243 | } | |
4244 | len += sprintf(p + len, "\n"); | |
4245 | if (j != 16) | |
4246 | break; | |
4247 | } | |
4248 | ||
4249 | /* These are way too dangerous to advertise openly... */ | |
4250 | #if 0 | |
4251 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4252 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4253 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4254 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4255 | #endif | |
4256 | return len; | |
4257 | } | |
4258 | ||
4259 | static int ecdump_write(char *buf) | |
4260 | { | |
4261 | char *cmd; | |
4262 | int i, v; | |
4263 | ||
4264 | while ((cmd = next_cmd(&buf))) { | |
4265 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4266 | /* i and v set */ | |
4267 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4268 | /* i and v set */ | |
4269 | } else | |
4270 | return -EINVAL; | |
4271 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4272 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4273 | return -EIO; |
4274 | } else | |
4275 | return -EINVAL; | |
4276 | } | |
4277 | ||
4278 | return 0; | |
78f81cc4 BD |
4279 | } |
4280 | ||
a5763f22 HMH |
4281 | static struct ibm_struct ecdump_driver_data = { |
4282 | .name = "ecdump", | |
4283 | .read = ecdump_read, | |
4284 | .write = ecdump_write, | |
92641177 | 4285 | .flags.experimental = 1, |
a5763f22 HMH |
4286 | }; |
4287 | ||
56b6aeb0 HMH |
4288 | /************************************************************************* |
4289 | * Backlight/brightness subdriver | |
4290 | */ | |
4291 | ||
f74a27d4 HMH |
4292 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4293 | ||
94954cc6 | 4294 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4295 | static int brightness_offset = 0x31; |
4296 | static int brightness_mode; | |
4297 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4298 | ||
b21a15f6 | 4299 | static struct mutex brightness_mutex; |
56b6aeb0 | 4300 | |
b21a15f6 HMH |
4301 | /* |
4302 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4303 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
4304 | */ | |
4305 | static int brightness_get(struct backlight_device *bd) | |
4306 | { | |
4307 | u8 lec = 0, lcmos = 0, level = 0; | |
4308 | ||
4309 | if (brightness_mode & 1) { | |
4310 | if (!acpi_ec_read(brightness_offset, &lec)) | |
4311 | return -EIO; | |
4312 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4313 | level = lec; | |
4314 | }; | |
4315 | if (brightness_mode & 2) { | |
4316 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4317 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4318 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4319 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4320 | level = lcmos; | |
4321 | } | |
4322 | ||
4323 | if (brightness_mode == 3 && lec != lcmos) { | |
e0c7dfe7 | 4324 | printk(TPACPI_ERR |
b21a15f6 HMH |
4325 | "CMOS NVRAM (%u) and EC (%u) do not agree " |
4326 | "on display brightness level\n", | |
4327 | (unsigned int) lcmos, | |
4328 | (unsigned int) lec); | |
4329 | return -EIO; | |
4330 | } | |
4331 | ||
4332 | return level; | |
4333 | } | |
4334 | ||
4335 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4336 | static int brightness_set(int value) | |
4337 | { | |
4338 | int cmos_cmd, inc, i, res; | |
4339 | int current_value; | |
4340 | ||
4341 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4342 | return -EINVAL; | |
4343 | ||
4344 | res = mutex_lock_interruptible(&brightness_mutex); | |
4345 | if (res < 0) | |
4346 | return res; | |
4347 | ||
4348 | current_value = brightness_get(NULL); | |
4349 | if (current_value < 0) { | |
4350 | res = current_value; | |
4351 | goto errout; | |
4352 | } | |
4353 | ||
4354 | cmos_cmd = value > current_value ? | |
4355 | TP_CMOS_BRIGHTNESS_UP : | |
4356 | TP_CMOS_BRIGHTNESS_DOWN; | |
4357 | inc = (value > current_value)? 1 : -1; | |
4358 | ||
4359 | res = 0; | |
4360 | for (i = current_value; i != value; i += inc) { | |
4361 | if ((brightness_mode & 2) && | |
4362 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4363 | res = -EIO; | |
4364 | goto errout; | |
4365 | } | |
4366 | if ((brightness_mode & 1) && | |
4367 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4368 | res = -EIO; | |
4369 | goto errout;; | |
4370 | } | |
4371 | } | |
4372 | ||
4373 | errout: | |
4374 | mutex_unlock(&brightness_mutex); | |
4375 | return res; | |
4376 | } | |
4377 | ||
4378 | /* sysfs backlight class ----------------------------------------------- */ | |
4379 | ||
4380 | static int brightness_update_status(struct backlight_device *bd) | |
4381 | { | |
4382 | /* it is the backlight class's job (caller) to handle | |
4383 | * EINTR and other errors properly */ | |
4384 | return brightness_set( | |
4385 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4386 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4387 | bd->props.brightness : 0); | |
4388 | } | |
4389 | ||
4390 | static struct backlight_ops ibm_backlight_data = { | |
35ff8b9f HMH |
4391 | .get_brightness = brightness_get, |
4392 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4393 | }; |
4394 | ||
b21a15f6 | 4395 | /* --------------------------------------------------------------------- */ |
f432255e | 4396 | |
a5763f22 | 4397 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4398 | { |
4399 | int b; | |
4400 | ||
fe08bc4b HMH |
4401 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4402 | ||
f432255e HMH |
4403 | mutex_init(&brightness_mutex); |
4404 | ||
b5972796 HMH |
4405 | /* |
4406 | * We always attempt to detect acpi support, so as to switch | |
4407 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
4408 | * going to publish a backlight interface | |
4409 | */ | |
4410 | b = tpacpi_check_std_acpi_brightness_support(); | |
4411 | if (b > 0) { | |
4412 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
4413 | printk(TPACPI_NOTICE | |
4414 | "Lenovo BIOS switched to ACPI backlight " | |
4415 | "control mode\n"); | |
4416 | } | |
4417 | if (brightness_enable > 1) { | |
e0c7dfe7 | 4418 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4419 | "standard ACPI backlight interface " |
4420 | "available, not loading native one...\n"); | |
e11e211a HMH |
4421 | return 1; |
4422 | } | |
87cc537a HMH |
4423 | } |
4424 | ||
b5972796 HMH |
4425 | if (!brightness_enable) { |
4426 | dbg_printk(TPACPI_DBG_INIT, | |
4427 | "brightness support disabled by " | |
4428 | "module parameter\n"); | |
4429 | return 1; | |
4430 | } | |
4431 | ||
4432 | if (b > 16) { | |
4433 | printk(TPACPI_ERR | |
4434 | "Unsupported brightness interface, " | |
4435 | "please contact %s\n", TPACPI_MAIL); | |
4436 | return 1; | |
4437 | } | |
4438 | if (b == 16) | |
4439 | tp_features.bright_16levels = 1; | |
4440 | ||
24d3b774 HMH |
4441 | if (!brightness_mode) { |
4442 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4443 | brightness_mode = 2; | |
4444 | else | |
4445 | brightness_mode = 3; | |
4446 | ||
4447 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4448 | brightness_mode); | |
4449 | } | |
4450 | ||
4451 | if (brightness_mode > 3) | |
4452 | return -EINVAL; | |
4453 | ||
56b6aeb0 HMH |
4454 | b = brightness_get(NULL); |
4455 | if (b < 0) | |
24d3b774 | 4456 | return 1; |
56b6aeb0 | 4457 | |
a3f104c0 | 4458 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4459 | printk(TPACPI_INFO |
4460 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4461 | |
7d5a015e HMH |
4462 | ibm_backlight_device = backlight_device_register( |
4463 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4464 | &ibm_backlight_data); | |
56b6aeb0 | 4465 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4466 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4467 | return PTR_ERR(ibm_backlight_device); |
4468 | } | |
fe08bc4b | 4469 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4470 | |
a3f104c0 HMH |
4471 | ibm_backlight_device->props.max_brightness = |
4472 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4473 | ibm_backlight_device->props.brightness = b; |
4474 | backlight_update_status(ibm_backlight_device); | |
4475 | ||
4476 | return 0; | |
4477 | } | |
4478 | ||
4479 | static void brightness_exit(void) | |
4480 | { | |
4481 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4482 | vdbg_printk(TPACPI_DBG_EXIT, |
4483 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4484 | backlight_device_unregister(ibm_backlight_device); |
4485 | ibm_backlight_device = NULL; | |
4486 | } | |
4487 | } | |
4488 | ||
56b6aeb0 HMH |
4489 | static int brightness_read(char *p) |
4490 | { | |
4491 | int len = 0; | |
4492 | int level; | |
4493 | ||
35ff8b9f HMH |
4494 | level = brightness_get(NULL); |
4495 | if (level < 0) { | |
56b6aeb0 HMH |
4496 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4497 | } else { | |
a3f104c0 | 4498 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4499 | len += sprintf(p + len, "commands:\tup, down\n"); |
4500 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4501 | " (<level> is 0-%d)\n", |
4502 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4503 | } |
4504 | ||
4505 | return len; | |
4506 | } | |
4507 | ||
8acb0250 HM |
4508 | static int brightness_write(char *buf) |
4509 | { | |
4510 | int level; | |
4273af8d | 4511 | int rc; |
1da177e4 | 4512 | char *cmd; |
a3f104c0 | 4513 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4514 | |
4273af8d HMH |
4515 | level = brightness_get(NULL); |
4516 | if (level < 0) | |
4517 | return level; | |
78f81cc4 | 4518 | |
4273af8d | 4519 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4520 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4521 | if (level < max_level) |
4522 | level++; | |
78f81cc4 | 4523 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4524 | if (level > 0) |
4525 | level--; | |
4526 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4527 | level >= 0 && level <= max_level) { | |
4528 | /* new level set */ | |
78f81cc4 BD |
4529 | } else |
4530 | return -EINVAL; | |
78f81cc4 BD |
4531 | } |
4532 | ||
4273af8d HMH |
4533 | /* |
4534 | * Now we know what the final level should be, so we try to set it. | |
4535 | * Doing it this way makes the syscall restartable in case of EINTR | |
4536 | */ | |
4537 | rc = brightness_set(level); | |
4538 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4539 | } |
4540 | ||
a5763f22 HMH |
4541 | static struct ibm_struct brightness_driver_data = { |
4542 | .name = "brightness", | |
4543 | .read = brightness_read, | |
4544 | .write = brightness_write, | |
4545 | .exit = brightness_exit, | |
4546 | }; | |
4547 | ||
56b6aeb0 HMH |
4548 | /************************************************************************* |
4549 | * Volume subdriver | |
4550 | */ | |
fb87a811 | 4551 | |
f74a27d4 HMH |
4552 | static int volume_offset = 0x30; |
4553 | ||
78f81cc4 BD |
4554 | static int volume_read(char *p) |
4555 | { | |
4556 | int len = 0; | |
4557 | u8 level; | |
4558 | ||
4559 | if (!acpi_ec_read(volume_offset, &level)) { | |
4560 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4561 | } else { | |
4562 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4563 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4564 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4565 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4566 | " (<level> is 0-15)\n"); | |
4567 | } | |
4568 | ||
4569 | return len; | |
4570 | } | |
4571 | ||
78f81cc4 BD |
4572 | static int volume_write(char *buf) |
4573 | { | |
4574 | int cmos_cmd, inc, i; | |
4575 | u8 level, mute; | |
4576 | int new_level, new_mute; | |
4577 | char *cmd; | |
4578 | ||
4579 | while ((cmd = next_cmd(&buf))) { | |
4580 | if (!acpi_ec_read(volume_offset, &level)) | |
4581 | return -EIO; | |
4582 | new_mute = mute = level & 0x40; | |
4583 | new_level = level = level & 0xf; | |
4584 | ||
4585 | if (strlencmp(cmd, "up") == 0) { | |
4586 | if (mute) | |
4587 | new_mute = 0; | |
4588 | else | |
4589 | new_level = level == 15 ? 15 : level + 1; | |
4590 | } else if (strlencmp(cmd, "down") == 0) { | |
4591 | if (mute) | |
4592 | new_mute = 0; | |
4593 | else | |
4594 | new_level = level == 0 ? 0 : level - 1; | |
4595 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4596 | new_level >= 0 && new_level <= 15) { | |
4597 | /* new_level set */ | |
4598 | } else if (strlencmp(cmd, "mute") == 0) { | |
4599 | new_mute = 0x40; | |
1da177e4 LT |
4600 | } else |
4601 | return -EINVAL; | |
4602 | ||
35ff8b9f HMH |
4603 | if (new_level != level) { |
4604 | /* mute doesn't change */ | |
4605 | ||
4606 | cmos_cmd = (new_level > level) ? | |
4607 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4608 | inc = new_level > level ? 1 : -1; |
4609 | ||
c9bea99c | 4610 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4611 | !acpi_ec_write(volume_offset, level))) |
4612 | return -EIO; | |
4613 | ||
4614 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4615 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4616 | !acpi_ec_write(volume_offset, i + inc)) |
4617 | return -EIO; | |
4618 | ||
35ff8b9f HMH |
4619 | if (mute && |
4620 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4621 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4622 | return -EIO; |
35ff8b9f | 4623 | } |
78f81cc4 BD |
4624 | } |
4625 | ||
35ff8b9f HMH |
4626 | if (new_mute != mute) { |
4627 | /* level doesn't change */ | |
4628 | ||
4629 | cmos_cmd = (new_mute) ? | |
4630 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4631 | |
c9bea99c | 4632 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4633 | !acpi_ec_write(volume_offset, level + new_mute)) |
4634 | return -EIO; | |
4635 | } | |
4636 | } | |
4637 | ||
4638 | return 0; | |
4639 | } | |
4640 | ||
a5763f22 HMH |
4641 | static struct ibm_struct volume_driver_data = { |
4642 | .name = "volume", | |
4643 | .read = volume_read, | |
4644 | .write = volume_write, | |
4645 | }; | |
56b6aeb0 HMH |
4646 | |
4647 | /************************************************************************* | |
4648 | * Fan subdriver | |
4649 | */ | |
4650 | ||
4651 | /* | |
4652 | * FAN ACCESS MODES | |
4653 | * | |
efa27145 | 4654 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4655 | * ACPI GFAN method: returns fan level |
4656 | * | |
efa27145 | 4657 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4658 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4659 | * |
efa27145 | 4660 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4661 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4662 | * | |
f51d1a39 HMH |
4663 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4664 | * it for writing. | |
56b6aeb0 | 4665 | * |
efa27145 | 4666 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4667 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4668 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4669 | * |
4670 | * Fan speed changes of any sort (including those caused by the | |
4671 | * disengaged mode) are usually done slowly by the firmware as the | |
4672 | * maximum ammount of fan duty cycle change per second seems to be | |
4673 | * limited. | |
4674 | * | |
4675 | * Reading is not available if GFAN exists. | |
4676 | * Writing is not available if SFAN exists. | |
4677 | * | |
4678 | * Bits | |
4679 | * 7 automatic mode engaged; | |
4680 | * (default operation mode of the ThinkPad) | |
4681 | * fan level is ignored in this mode. | |
f51d1a39 | 4682 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4683 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4684 | * the tachometer while the fan controller ramps up |
4685 | * the speed (which can take up to a few *minutes*). | |
4686 | * Speeds up fan to 100% duty-cycle, which is far above | |
4687 | * the standard RPM levels. It is not impossible that | |
4688 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4689 | * 5-3 unused in some models. Extra bits for fan level |
4690 | * in others, but still useless as all values above | |
4691 | * 7 map to the same speed as level 7 in these models. | |
4692 | * 2-0 fan level (0..7 usually) | |
4693 | * 0x00 = stop | |
4694 | * 0x07 = max (set when temperatures critical) | |
4695 | * Some ThinkPads may have other levels, see | |
efa27145 | 4696 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4697 | * |
4698 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4699 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4700 | * does so, its initial value is meaningless (0x07). | |
4701 | * | |
4702 | * For firmware bugs, refer to: | |
4703 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4704 | * | |
4705 | * ---- | |
4706 | * | |
4707 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4708 | * Main fan tachometer reading (in RPM) | |
4709 | * | |
4710 | * This register is present on all ThinkPads with a new-style EC, and | |
4711 | * it is known not to be present on the A21m/e, and T22, as there is | |
4712 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4713 | * ThinkPads from this same time period (and earlier) probably lack the | |
4714 | * tachometer as well. | |
4715 | * | |
4716 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4717 | * was never fixed by IBM to report the EC firmware version string | |
4718 | * probably support the tachometer (like the early X models), so | |
4719 | * detecting it is quite hard. We need more data to know for sure. | |
4720 | * | |
4721 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4722 | * might result. | |
4723 | * | |
f51d1a39 HMH |
4724 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4725 | * mode. | |
56b6aeb0 HMH |
4726 | * |
4727 | * For firmware bugs, refer to: | |
4728 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4729 | * | |
efa27145 | 4730 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4731 | * ThinkPad X31, X40, X41. Not available in the X60. |
4732 | * | |
4733 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4734 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4735 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4736 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4737 | * | |
4738 | * The speeds are stored on handles | |
4739 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4740 | * | |
4741 | * There are three default speed sets, acessible as handles: | |
4742 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4743 | * | |
4744 | * ACPI DSDT switches which set is in use depending on various | |
4745 | * factors. | |
4746 | * | |
efa27145 | 4747 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4748 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4749 | * but the ACPI tables just mention level 7. | |
4750 | */ | |
4751 | ||
f74a27d4 HMH |
4752 | enum { /* Fan control constants */ |
4753 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4754 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4755 | * 0x84 must be read before 0x85 */ | |
4756 | ||
4757 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4758 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4759 | ||
4760 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4761 | }; | |
4762 | ||
4763 | enum fan_status_access_mode { | |
4764 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4765 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4766 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4767 | }; | |
4768 | ||
4769 | enum fan_control_access_mode { | |
4770 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4771 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4772 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4773 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4774 | }; | |
4775 | ||
4776 | enum fan_control_commands { | |
4777 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4778 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4779 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4780 | * and also watchdog cmd */ | |
4781 | }; | |
4782 | ||
4783 | static int fan_control_allowed; | |
4784 | ||
69ba91cb HMH |
4785 | static enum fan_status_access_mode fan_status_access_mode; |
4786 | static enum fan_control_access_mode fan_control_access_mode; | |
4787 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4788 | |
778b4d74 | 4789 | static u8 fan_control_initial_status; |
fe98a52c | 4790 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4791 | static int fan_watchdog_maxinterval; |
4792 | ||
4793 | static struct mutex fan_mutex; | |
778b4d74 | 4794 | |
25c68a33 | 4795 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4796 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4797 | |
e0c7dfe7 HMH |
4798 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4799 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4800 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4801 | ); /* all others */ | |
e0c7dfe7 | 4802 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4803 | "JFNS", /* 770x-JL */ |
4804 | ); /* all others */ | |
4805 | ||
fe98a52c | 4806 | /* |
b21a15f6 | 4807 | * Call with fan_mutex held |
fe98a52c | 4808 | */ |
b21a15f6 | 4809 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4810 | { |
b21a15f6 HMH |
4811 | if ((status & |
4812 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4813 | if (status > 7) | |
4814 | fan_control_desired_level = 7; | |
4815 | else | |
4816 | fan_control_desired_level = status; | |
4817 | } | |
4818 | } | |
fe98a52c | 4819 | |
b21a15f6 HMH |
4820 | static int fan_get_status(u8 *status) |
4821 | { | |
4822 | u8 s; | |
fe98a52c | 4823 | |
b21a15f6 HMH |
4824 | /* TODO: |
4825 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4826 | |
b21a15f6 HMH |
4827 | switch (fan_status_access_mode) { |
4828 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4829 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4830 | |
b21a15f6 HMH |
4831 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4832 | return -EIO; | |
fe98a52c | 4833 | |
b21a15f6 HMH |
4834 | if (likely(status)) |
4835 | *status = s & 0x07; | |
fe98a52c | 4836 | |
b21a15f6 HMH |
4837 | break; |
4838 | ||
4839 | case TPACPI_FAN_RD_TPEC: | |
4840 | /* all except 570, 600e/x, 770e, 770x */ | |
4841 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4842 | return -EIO; | |
4843 | ||
4844 | if (likely(status)) | |
4845 | *status = s; | |
fe98a52c | 4846 | |
fe98a52c | 4847 | break; |
b21a15f6 | 4848 | |
fe98a52c | 4849 | default: |
b21a15f6 | 4850 | return -ENXIO; |
fe98a52c HMH |
4851 | } |
4852 | ||
b21a15f6 HMH |
4853 | return 0; |
4854 | } | |
fe98a52c | 4855 | |
b21a15f6 HMH |
4856 | static int fan_get_status_safe(u8 *status) |
4857 | { | |
4858 | int rc; | |
4859 | u8 s; | |
fe98a52c | 4860 | |
b21a15f6 HMH |
4861 | if (mutex_lock_interruptible(&fan_mutex)) |
4862 | return -ERESTARTSYS; | |
4863 | rc = fan_get_status(&s); | |
4864 | if (!rc) | |
4865 | fan_update_desired_level(s); | |
4866 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4867 | |
b21a15f6 HMH |
4868 | if (status) |
4869 | *status = s; | |
fe98a52c | 4870 | |
b21a15f6 HMH |
4871 | return rc; |
4872 | } | |
4873 | ||
4874 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4875 | { |
b21a15f6 | 4876 | u8 hi, lo; |
fe98a52c | 4877 | |
b21a15f6 HMH |
4878 | switch (fan_status_access_mode) { |
4879 | case TPACPI_FAN_RD_TPEC: | |
4880 | /* all except 570, 600e/x, 770e, 770x */ | |
4881 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4882 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4883 | return -EIO; | |
fe98a52c | 4884 | |
b21a15f6 HMH |
4885 | if (likely(speed)) |
4886 | *speed = (hi << 8) | lo; | |
fe98a52c | 4887 | |
b21a15f6 | 4888 | break; |
fe98a52c | 4889 | |
b21a15f6 HMH |
4890 | default: |
4891 | return -ENXIO; | |
4892 | } | |
fe98a52c | 4893 | |
b21a15f6 | 4894 | return 0; |
fe98a52c HMH |
4895 | } |
4896 | ||
b21a15f6 | 4897 | static int fan_set_level(int level) |
fe98a52c | 4898 | { |
b21a15f6 HMH |
4899 | if (!fan_control_allowed) |
4900 | return -EPERM; | |
fe98a52c | 4901 | |
b21a15f6 HMH |
4902 | switch (fan_control_access_mode) { |
4903 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4904 | if (level >= 0 && level <= 7) { | |
4905 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4906 | return -EIO; | |
4907 | } else | |
4908 | return -EINVAL; | |
4909 | break; | |
fe98a52c | 4910 | |
b21a15f6 HMH |
4911 | case TPACPI_FAN_WR_ACPI_FANS: |
4912 | case TPACPI_FAN_WR_TPEC: | |
4913 | if ((level != TP_EC_FAN_AUTO) && | |
4914 | (level != TP_EC_FAN_FULLSPEED) && | |
4915 | ((level < 0) || (level > 7))) | |
4916 | return -EINVAL; | |
fe98a52c | 4917 | |
b21a15f6 HMH |
4918 | /* safety net should the EC not support AUTO |
4919 | * or FULLSPEED mode bits and just ignore them */ | |
4920 | if (level & TP_EC_FAN_FULLSPEED) | |
4921 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 4922 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 4923 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 4924 | |
b21a15f6 HMH |
4925 | if (!acpi_ec_write(fan_status_offset, level)) |
4926 | return -EIO; | |
4927 | else | |
4928 | tp_features.fan_ctrl_status_undef = 0; | |
4929 | break; | |
fe98a52c | 4930 | |
b21a15f6 HMH |
4931 | default: |
4932 | return -ENXIO; | |
4933 | } | |
4934 | return 0; | |
fe98a52c HMH |
4935 | } |
4936 | ||
b21a15f6 | 4937 | static int fan_set_level_safe(int level) |
fe98a52c | 4938 | { |
b21a15f6 | 4939 | int rc; |
fe98a52c | 4940 | |
b21a15f6 HMH |
4941 | if (!fan_control_allowed) |
4942 | return -EPERM; | |
fe98a52c | 4943 | |
b21a15f6 HMH |
4944 | if (mutex_lock_interruptible(&fan_mutex)) |
4945 | return -ERESTARTSYS; | |
fe98a52c | 4946 | |
b21a15f6 HMH |
4947 | if (level == TPACPI_FAN_LAST_LEVEL) |
4948 | level = fan_control_desired_level; | |
fe98a52c | 4949 | |
b21a15f6 HMH |
4950 | rc = fan_set_level(level); |
4951 | if (!rc) | |
4952 | fan_update_desired_level(level); | |
4953 | ||
4954 | mutex_unlock(&fan_mutex); | |
4955 | return rc; | |
fe98a52c HMH |
4956 | } |
4957 | ||
b21a15f6 | 4958 | static int fan_set_enable(void) |
fe98a52c | 4959 | { |
b21a15f6 HMH |
4960 | u8 s; |
4961 | int rc; | |
fe98a52c | 4962 | |
ecf2a80a HMH |
4963 | if (!fan_control_allowed) |
4964 | return -EPERM; | |
4965 | ||
b21a15f6 HMH |
4966 | if (mutex_lock_interruptible(&fan_mutex)) |
4967 | return -ERESTARTSYS; | |
fe98a52c | 4968 | |
b21a15f6 HMH |
4969 | switch (fan_control_access_mode) { |
4970 | case TPACPI_FAN_WR_ACPI_FANS: | |
4971 | case TPACPI_FAN_WR_TPEC: | |
4972 | rc = fan_get_status(&s); | |
4973 | if (rc < 0) | |
4974 | break; | |
fe98a52c | 4975 | |
b21a15f6 HMH |
4976 | /* Don't go out of emergency fan mode */ |
4977 | if (s != 7) { | |
4978 | s &= 0x07; | |
4979 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4980 | } | |
fe98a52c | 4981 | |
b21a15f6 HMH |
4982 | if (!acpi_ec_write(fan_status_offset, s)) |
4983 | rc = -EIO; | |
4984 | else { | |
4985 | tp_features.fan_ctrl_status_undef = 0; | |
4986 | rc = 0; | |
4987 | } | |
4988 | break; | |
fe98a52c | 4989 | |
b21a15f6 HMH |
4990 | case TPACPI_FAN_WR_ACPI_SFAN: |
4991 | rc = fan_get_status(&s); | |
4992 | if (rc < 0) | |
4993 | break; | |
fe98a52c | 4994 | |
b21a15f6 | 4995 | s &= 0x07; |
fe98a52c | 4996 | |
b21a15f6 HMH |
4997 | /* Set fan to at least level 4 */ |
4998 | s |= 4; | |
fe08bc4b | 4999 | |
b21a15f6 | 5000 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 5001 | rc = -EIO; |
b21a15f6 HMH |
5002 | else |
5003 | rc = 0; | |
5004 | break; | |
78f81cc4 | 5005 | |
b21a15f6 HMH |
5006 | default: |
5007 | rc = -ENXIO; | |
5008 | } | |
5fba344c | 5009 | |
b21a15f6 HMH |
5010 | mutex_unlock(&fan_mutex); |
5011 | return rc; | |
69ba91cb | 5012 | } |
78f81cc4 | 5013 | |
b21a15f6 | 5014 | static int fan_set_disable(void) |
78f81cc4 | 5015 | { |
b21a15f6 | 5016 | int rc; |
c52f0aa5 | 5017 | |
b21a15f6 HMH |
5018 | if (!fan_control_allowed) |
5019 | return -EPERM; | |
78f81cc4 | 5020 | |
b21a15f6 HMH |
5021 | if (mutex_lock_interruptible(&fan_mutex)) |
5022 | return -ERESTARTSYS; | |
3ef8a609 | 5023 | |
b21a15f6 HMH |
5024 | rc = 0; |
5025 | switch (fan_control_access_mode) { | |
5026 | case TPACPI_FAN_WR_ACPI_FANS: | |
5027 | case TPACPI_FAN_WR_TPEC: | |
5028 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
5029 | rc = -EIO; | |
5030 | else { | |
5031 | fan_control_desired_level = 0; | |
5032 | tp_features.fan_ctrl_status_undef = 0; | |
5033 | } | |
3ef8a609 HMH |
5034 | break; |
5035 | ||
b21a15f6 HMH |
5036 | case TPACPI_FAN_WR_ACPI_SFAN: |
5037 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
5038 | rc = -EIO; | |
5039 | else | |
5040 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
5041 | break; |
5042 | ||
5043 | default: | |
b21a15f6 | 5044 | rc = -ENXIO; |
78f81cc4 BD |
5045 | } |
5046 | ||
fe98a52c | 5047 | |
fe98a52c | 5048 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5049 | return rc; |
5050 | } | |
5051 | ||
b21a15f6 | 5052 | static int fan_set_speed(int speed) |
c52f0aa5 | 5053 | { |
b21a15f6 | 5054 | int rc; |
c52f0aa5 | 5055 | |
b21a15f6 HMH |
5056 | if (!fan_control_allowed) |
5057 | return -EPERM; | |
3ef8a609 | 5058 | |
b21a15f6 HMH |
5059 | if (mutex_lock_interruptible(&fan_mutex)) |
5060 | return -ERESTARTSYS; | |
c52f0aa5 | 5061 | |
b21a15f6 HMH |
5062 | rc = 0; |
5063 | switch (fan_control_access_mode) { | |
5064 | case TPACPI_FAN_WR_ACPI_FANS: | |
5065 | if (speed >= 0 && speed <= 65535) { | |
5066 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5067 | speed, speed, speed)) | |
5068 | rc = -EIO; | |
5069 | } else | |
5070 | rc = -EINVAL; | |
c52f0aa5 HMH |
5071 | break; |
5072 | ||
5073 | default: | |
b21a15f6 | 5074 | rc = -ENXIO; |
c52f0aa5 HMH |
5075 | } |
5076 | ||
b21a15f6 HMH |
5077 | mutex_unlock(&fan_mutex); |
5078 | return rc; | |
16663a87 HMH |
5079 | } |
5080 | ||
5081 | static void fan_watchdog_reset(void) | |
5082 | { | |
94954cc6 | 5083 | static int fan_watchdog_active; |
16663a87 | 5084 | |
4985cd0a HMH |
5085 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5086 | return; | |
5087 | ||
16663a87 HMH |
5088 | if (fan_watchdog_active) |
5089 | cancel_delayed_work(&fan_watchdog_task); | |
5090 | ||
8fef502e HMH |
5091 | if (fan_watchdog_maxinterval > 0 && |
5092 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
5093 | fan_watchdog_active = 1; |
5094 | if (!schedule_delayed_work(&fan_watchdog_task, | |
5095 | msecs_to_jiffies(fan_watchdog_maxinterval | |
5096 | * 1000))) { | |
35ff8b9f HMH |
5097 | printk(TPACPI_ERR |
5098 | "failed to schedule the fan watchdog, " | |
16663a87 HMH |
5099 | "watchdog will not trigger\n"); |
5100 | } | |
5101 | } else | |
5102 | fan_watchdog_active = 0; | |
5103 | } | |
5104 | ||
b21a15f6 | 5105 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5106 | { |
b21a15f6 | 5107 | int rc; |
18ad7996 | 5108 | |
b21a15f6 HMH |
5109 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5110 | return; | |
a12095c2 | 5111 | |
e0c7dfe7 | 5112 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5113 | rc = fan_set_enable(); |
5114 | if (rc < 0) { | |
e0c7dfe7 | 5115 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5116 | "will try again later...\n", -rc); |
5117 | /* reschedule for later */ | |
5118 | fan_watchdog_reset(); | |
5119 | } | |
5120 | } | |
eaa7571b | 5121 | |
b21a15f6 HMH |
5122 | /* |
5123 | * SYSFS fan layout: hwmon compatible (device) | |
5124 | * | |
5125 | * pwm*_enable: | |
5126 | * 0: "disengaged" mode | |
5127 | * 1: manual mode | |
5128 | * 2: native EC "auto" mode (recommended, hardware default) | |
5129 | * | |
5130 | * pwm*: set speed in manual mode, ignored otherwise. | |
5131 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5132 | * interpolation. | |
5133 | * | |
5134 | * fan*_input: tachometer reading, RPM | |
5135 | * | |
5136 | * | |
5137 | * SYSFS fan layout: extensions | |
5138 | * | |
5139 | * fan_watchdog (driver): | |
5140 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5141 | */ | |
5142 | ||
5143 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5144 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5145 | struct device_attribute *attr, | |
5146 | char *buf) | |
5147 | { | |
5148 | int res, mode; | |
5149 | u8 status; | |
5150 | ||
5151 | res = fan_get_status_safe(&status); | |
5152 | if (res) | |
5153 | return res; | |
5154 | ||
5155 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5156 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5157 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5158 | } else { |
5159 | /* Return most likely status. In fact, it | |
5160 | * might be the only possible status */ | |
5161 | status = TP_EC_FAN_AUTO; | |
5162 | } | |
5163 | } | |
5164 | ||
5165 | if (status & TP_EC_FAN_FULLSPEED) { | |
5166 | mode = 0; | |
5167 | } else if (status & TP_EC_FAN_AUTO) { | |
5168 | mode = 2; | |
5169 | } else | |
5170 | mode = 1; | |
5171 | ||
5172 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5173 | } | |
a12095c2 | 5174 | |
b21a15f6 HMH |
5175 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5176 | struct device_attribute *attr, | |
5177 | const char *buf, size_t count) | |
5178 | { | |
5179 | unsigned long t; | |
5180 | int res, level; | |
5181 | ||
5182 | if (parse_strtoul(buf, 2, &t)) | |
5183 | return -EINVAL; | |
5184 | ||
5185 | switch (t) { | |
5186 | case 0: | |
5187 | level = TP_EC_FAN_FULLSPEED; | |
5188 | break; | |
5189 | case 1: | |
5190 | level = TPACPI_FAN_LAST_LEVEL; | |
5191 | break; | |
5192 | case 2: | |
5193 | level = TP_EC_FAN_AUTO; | |
5194 | break; | |
5195 | case 3: | |
5196 | /* reserved for software-controlled auto mode */ | |
5197 | return -ENOSYS; | |
18ad7996 | 5198 | default: |
b21a15f6 | 5199 | return -EINVAL; |
18ad7996 | 5200 | } |
b21a15f6 HMH |
5201 | |
5202 | res = fan_set_level_safe(level); | |
5203 | if (res == -ENXIO) | |
5204 | return -EINVAL; | |
5205 | else if (res < 0) | |
5206 | return res; | |
5207 | ||
5208 | fan_watchdog_reset(); | |
5209 | ||
5210 | return count; | |
18ad7996 HMH |
5211 | } |
5212 | ||
b21a15f6 HMH |
5213 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5214 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5215 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5216 | ||
5217 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5218 | static ssize_t fan_pwm1_show(struct device *dev, | |
5219 | struct device_attribute *attr, | |
5220 | char *buf) | |
fe98a52c | 5221 | { |
b21a15f6 HMH |
5222 | int res; |
5223 | u8 status; | |
fe98a52c | 5224 | |
b21a15f6 HMH |
5225 | res = fan_get_status_safe(&status); |
5226 | if (res) | |
5227 | return res; | |
ecf2a80a | 5228 | |
b21a15f6 HMH |
5229 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5230 | if (status != fan_control_initial_status) { | |
5231 | tp_features.fan_ctrl_status_undef = 0; | |
5232 | } else { | |
5233 | status = TP_EC_FAN_AUTO; | |
5234 | } | |
5235 | } | |
fe98a52c | 5236 | |
b21a15f6 HMH |
5237 | if ((status & |
5238 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5239 | status = fan_control_desired_level; | |
fe98a52c | 5240 | |
b21a15f6 HMH |
5241 | if (status > 7) |
5242 | status = 7; | |
fe98a52c | 5243 | |
b21a15f6 | 5244 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5245 | } |
5246 | ||
b21a15f6 HMH |
5247 | static ssize_t fan_pwm1_store(struct device *dev, |
5248 | struct device_attribute *attr, | |
5249 | const char *buf, size_t count) | |
18ad7996 | 5250 | { |
b21a15f6 | 5251 | unsigned long s; |
1c6a334e | 5252 | int rc; |
b21a15f6 | 5253 | u8 status, newlevel; |
1c6a334e | 5254 | |
b21a15f6 HMH |
5255 | if (parse_strtoul(buf, 255, &s)) |
5256 | return -EINVAL; | |
5257 | ||
5258 | /* scale down from 0-255 to 0-7 */ | |
5259 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5260 | |
fc589a3c HMH |
5261 | if (mutex_lock_interruptible(&fan_mutex)) |
5262 | return -ERESTARTSYS; | |
40ca9fdf | 5263 | |
b21a15f6 HMH |
5264 | rc = fan_get_status(&status); |
5265 | if (!rc && (status & | |
5266 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5267 | rc = fan_set_level(newlevel); | |
5268 | if (rc == -ENXIO) | |
5269 | rc = -EINVAL; | |
5270 | else if (!rc) { | |
5271 | fan_update_desired_level(newlevel); | |
5272 | fan_watchdog_reset(); | |
eaa7571b | 5273 | } |
b21a15f6 | 5274 | } |
1c6a334e | 5275 | |
b21a15f6 HMH |
5276 | mutex_unlock(&fan_mutex); |
5277 | return (rc)? rc : count; | |
5278 | } | |
1c6a334e | 5279 | |
b21a15f6 HMH |
5280 | static struct device_attribute dev_attr_fan_pwm1 = |
5281 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5282 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5283 | |
b21a15f6 HMH |
5284 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5285 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5286 | struct device_attribute *attr, | |
5287 | char *buf) | |
5288 | { | |
5289 | int res; | |
5290 | unsigned int speed; | |
1c6a334e | 5291 | |
b21a15f6 HMH |
5292 | res = fan_get_speed(&speed); |
5293 | if (res < 0) | |
5294 | return res; | |
1c6a334e | 5295 | |
b21a15f6 HMH |
5296 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5297 | } | |
18ad7996 | 5298 | |
b21a15f6 HMH |
5299 | static struct device_attribute dev_attr_fan_fan1_input = |
5300 | __ATTR(fan1_input, S_IRUGO, | |
5301 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5302 | |
b21a15f6 HMH |
5303 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5304 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5305 | char *buf) | |
5306 | { | |
5307 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5308 | } |
5309 | ||
b21a15f6 HMH |
5310 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5311 | const char *buf, size_t count) | |
18ad7996 | 5312 | { |
b21a15f6 HMH |
5313 | unsigned long t; |
5314 | ||
5315 | if (parse_strtoul(buf, 120, &t)) | |
5316 | return -EINVAL; | |
40ca9fdf | 5317 | |
ecf2a80a HMH |
5318 | if (!fan_control_allowed) |
5319 | return -EPERM; | |
5320 | ||
b21a15f6 HMH |
5321 | fan_watchdog_maxinterval = t; |
5322 | fan_watchdog_reset(); | |
40ca9fdf | 5323 | |
b21a15f6 HMH |
5324 | return count; |
5325 | } | |
5326 | ||
5327 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5328 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5329 | ||
5330 | /* --------------------------------------------------------------------- */ | |
5331 | static struct attribute *fan_attributes[] = { | |
5332 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5333 | &dev_attr_fan_fan1_input.attr, | |
5334 | NULL | |
5335 | }; | |
5336 | ||
5337 | static const struct attribute_group fan_attr_group = { | |
5338 | .attrs = fan_attributes, | |
5339 | }; | |
5340 | ||
5341 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5342 | { | |
5343 | int rc; | |
5344 | ||
5345 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5346 | ||
5347 | mutex_init(&fan_mutex); | |
5348 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5349 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5350 | fan_control_commands = 0; | |
5351 | fan_watchdog_maxinterval = 0; | |
5352 | tp_features.fan_ctrl_status_undef = 0; | |
5353 | fan_control_desired_level = 7; | |
5354 | ||
e0c7dfe7 HMH |
5355 | TPACPI_ACPIHANDLE_INIT(fans); |
5356 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5357 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5358 | |
5359 | if (gfan_handle) { | |
5360 | /* 570, 600e/x, 770e, 770x */ | |
5361 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5362 | } else { | |
5363 | /* all other ThinkPads: note that even old-style | |
5364 | * ThinkPad ECs supports the fan control register */ | |
5365 | if (likely(acpi_ec_read(fan_status_offset, | |
5366 | &fan_control_initial_status))) { | |
5367 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5368 | ||
5369 | /* In some ThinkPads, neither the EC nor the ACPI | |
5370 | * DSDT initialize the fan status, and it ends up | |
5371 | * being set to 0x07 when it *could* be either | |
5372 | * 0x07 or 0x80. | |
5373 | * | |
5374 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5375 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5376 | * to be buggy. */ | |
5377 | if (fan_control_initial_status == 0x07) { | |
5378 | switch (thinkpad_id.ec_model) { | |
5379 | case 0x5931: /* TP-1Y */ | |
5380 | case 0x3837: /* TP-78 */ | |
5381 | case 0x3637: /* TP-76 */ | |
5382 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5383 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5384 | "fan_init: initial fan status " |
5385 | "is unknown, assuming it is " | |
5386 | "in auto mode\n"); | |
b21a15f6 HMH |
5387 | tp_features.fan_ctrl_status_undef = 1; |
5388 | ;; | |
5389 | } | |
5390 | } | |
5391 | } else { | |
e0c7dfe7 | 5392 | printk(TPACPI_ERR |
b21a15f6 HMH |
5393 | "ThinkPad ACPI EC access misbehaving, " |
5394 | "fan status and control unavailable\n"); | |
5395 | return 1; | |
5396 | } | |
5397 | } | |
5398 | ||
5399 | if (sfan_handle) { | |
5400 | /* 570, 770x-JL */ | |
5401 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5402 | fan_control_commands |= | |
5403 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5404 | } else { | |
5405 | if (!gfan_handle) { | |
5406 | /* gfan without sfan means no fan control */ | |
5407 | /* all other models implement TP EC 0x2f control */ | |
5408 | ||
5409 | if (fans_handle) { | |
5410 | /* X31, X40, X41 */ | |
5411 | fan_control_access_mode = | |
5412 | TPACPI_FAN_WR_ACPI_FANS; | |
5413 | fan_control_commands |= | |
5414 | TPACPI_FAN_CMD_SPEED | | |
5415 | TPACPI_FAN_CMD_LEVEL | | |
5416 | TPACPI_FAN_CMD_ENABLE; | |
5417 | } else { | |
5418 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5419 | fan_control_commands |= | |
5420 | TPACPI_FAN_CMD_LEVEL | | |
5421 | TPACPI_FAN_CMD_ENABLE; | |
5422 | } | |
fe98a52c | 5423 | } |
b21a15f6 | 5424 | } |
18ad7996 | 5425 | |
b21a15f6 HMH |
5426 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5427 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5428 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5429 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5430 | |
b21a15f6 HMH |
5431 | /* fan control master switch */ |
5432 | if (!fan_control_allowed) { | |
5433 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5434 | fan_control_commands = 0; | |
5435 | dbg_printk(TPACPI_DBG_INIT, | |
5436 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5437 | } |
40ca9fdf | 5438 | |
b21a15f6 HMH |
5439 | /* update fan_control_desired_level */ |
5440 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5441 | fan_get_status_safe(NULL); | |
fe98a52c | 5442 | |
b21a15f6 HMH |
5443 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5444 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5445 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5446 | &fan_attr_group); | |
5447 | if (!(rc < 0)) | |
5448 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5449 | &driver_attr_fan_watchdog); | |
5450 | if (rc < 0) | |
5451 | return rc; | |
5452 | return 0; | |
5453 | } else | |
5454 | return 1; | |
56b6aeb0 HMH |
5455 | } |
5456 | ||
b21a15f6 | 5457 | static void fan_exit(void) |
56b6aeb0 | 5458 | { |
35ff8b9f HMH |
5459 | vdbg_printk(TPACPI_DBG_EXIT, |
5460 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5461 | |
b21a15f6 HMH |
5462 | /* FIXME: can we really do this unconditionally? */ |
5463 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5464 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5465 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5466 | |
b21a15f6 HMH |
5467 | cancel_delayed_work(&fan_watchdog_task); |
5468 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5469 | } |
5470 | ||
5471 | static int fan_read(char *p) | |
5472 | { | |
5473 | int len = 0; | |
5474 | int rc; | |
5475 | u8 status; | |
5476 | unsigned int speed = 0; | |
5477 | ||
5478 | switch (fan_status_access_mode) { | |
efa27145 | 5479 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5480 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5481 | rc = fan_get_status_safe(&status); |
5482 | if (rc < 0) | |
56b6aeb0 HMH |
5483 | return rc; |
5484 | ||
5485 | len += sprintf(p + len, "status:\t\t%s\n" | |
5486 | "level:\t\t%d\n", | |
5487 | (status != 0) ? "enabled" : "disabled", status); | |
5488 | break; | |
5489 | ||
efa27145 | 5490 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5491 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5492 | rc = fan_get_status_safe(&status); |
5493 | if (rc < 0) | |
56b6aeb0 HMH |
5494 | return rc; |
5495 | ||
d8fd94d9 | 5496 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5497 | if (status != fan_control_initial_status) |
d8fd94d9 | 5498 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5499 | else |
5500 | /* Return most likely status. In fact, it | |
5501 | * might be the only possible status */ | |
efa27145 | 5502 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5503 | } |
5504 | ||
5505 | len += sprintf(p + len, "status:\t\t%s\n", | |
5506 | (status != 0) ? "enabled" : "disabled"); | |
5507 | ||
35ff8b9f HMH |
5508 | rc = fan_get_speed(&speed); |
5509 | if (rc < 0) | |
56b6aeb0 HMH |
5510 | return rc; |
5511 | ||
5512 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5513 | ||
efa27145 | 5514 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5515 | /* Disengaged mode takes precedence */ |
5516 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5517 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5518 | len += sprintf(p + len, "level:\t\tauto\n"); |
5519 | else | |
5520 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5521 | break; | |
5522 | ||
efa27145 | 5523 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5524 | default: |
5525 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5526 | } | |
5527 | ||
efa27145 | 5528 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5529 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5530 | ||
5531 | switch (fan_control_access_mode) { | |
efa27145 | 5532 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5533 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5534 | break; | |
5535 | ||
5536 | default: | |
5537 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5538 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5539 | break; |
5540 | } | |
5541 | } | |
18ad7996 | 5542 | |
efa27145 | 5543 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5544 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5545 | "commands:\twatchdog <timeout> (<timeout> " |
5546 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5547 | |
efa27145 | 5548 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5549 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5550 | " (<speed> is 0-65535)\n"); | |
5551 | ||
5552 | return len; | |
78f81cc4 BD |
5553 | } |
5554 | ||
18ad7996 HMH |
5555 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5556 | { | |
5557 | int level; | |
5558 | ||
a12095c2 | 5559 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5560 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5561 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5562 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5563 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5564 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5565 | return 0; |
5566 | ||
35ff8b9f HMH |
5567 | *rc = fan_set_level_safe(level); |
5568 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5569 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5570 | "access mode %d", fan_control_access_mode); |
5571 | ||
5572 | return 1; | |
5573 | } | |
5574 | ||
5575 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5576 | { | |
5577 | if (strlencmp(cmd, "enable") != 0) | |
5578 | return 0; | |
5579 | ||
35ff8b9f HMH |
5580 | *rc = fan_set_enable(); |
5581 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5582 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5583 | "access mode %d", fan_control_access_mode); |
5584 | ||
5585 | return 1; | |
5586 | } | |
5587 | ||
5588 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5589 | { | |
5590 | if (strlencmp(cmd, "disable") != 0) | |
5591 | return 0; | |
5592 | ||
35ff8b9f HMH |
5593 | *rc = fan_set_disable(); |
5594 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5595 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5596 | "access mode %d", fan_control_access_mode); |
5597 | ||
5598 | return 1; | |
5599 | } | |
5600 | ||
5601 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5602 | { | |
5603 | int speed; | |
5604 | ||
a8b7a662 HMH |
5605 | /* TODO: |
5606 | * Support speed <low> <medium> <high> ? */ | |
5607 | ||
18ad7996 HMH |
5608 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5609 | return 0; | |
5610 | ||
35ff8b9f HMH |
5611 | *rc = fan_set_speed(speed); |
5612 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5613 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5614 | "access mode %d", fan_control_access_mode); |
5615 | ||
5616 | return 1; | |
5617 | } | |
5618 | ||
16663a87 HMH |
5619 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5620 | { | |
5621 | int interval; | |
5622 | ||
5623 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5624 | return 0; | |
5625 | ||
5626 | if (interval < 0 || interval > 120) | |
5627 | *rc = -EINVAL; | |
5628 | else | |
5629 | fan_watchdog_maxinterval = interval; | |
5630 | ||
5631 | return 1; | |
5632 | } | |
5633 | ||
18ad7996 HMH |
5634 | static int fan_write(char *buf) |
5635 | { | |
5636 | char *cmd; | |
5637 | int rc = 0; | |
5638 | ||
5639 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5640 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5641 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5642 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5643 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5644 | fan_write_cmd_disable(cmd, &rc) || |
5645 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5646 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5647 | fan_write_cmd_speed(cmd, &rc)) |
5648 | ) | |
5649 | rc = -EINVAL; | |
16663a87 HMH |
5650 | else if (!rc) |
5651 | fan_watchdog_reset(); | |
18ad7996 HMH |
5652 | } |
5653 | ||
5654 | return rc; | |
5655 | } | |
5656 | ||
a5763f22 HMH |
5657 | static struct ibm_struct fan_driver_data = { |
5658 | .name = "fan", | |
5659 | .read = fan_read, | |
5660 | .write = fan_write, | |
5661 | .exit = fan_exit, | |
a5763f22 HMH |
5662 | }; |
5663 | ||
56b6aeb0 HMH |
5664 | /**************************************************************************** |
5665 | **************************************************************************** | |
5666 | * | |
5667 | * Infrastructure | |
5668 | * | |
5669 | **************************************************************************** | |
5670 | ****************************************************************************/ | |
5671 | ||
7fd40029 HMH |
5672 | /* sysfs name ---------------------------------------------------------- */ |
5673 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5674 | struct device_attribute *attr, | |
5675 | char *buf) | |
5676 | { | |
e0c7dfe7 | 5677 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5678 | } |
5679 | ||
5680 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5681 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5682 | ||
5683 | /* --------------------------------------------------------------------- */ | |
5684 | ||
56b6aeb0 | 5685 | /* /proc support */ |
94954cc6 | 5686 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5687 | |
56b6aeb0 HMH |
5688 | /* |
5689 | * Module and infrastructure proble, init and exit handling | |
5690 | */ | |
1da177e4 | 5691 | |
b21a15f6 HMH |
5692 | static int force_load; |
5693 | ||
fe08bc4b | 5694 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5695 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5696 | { |
a5763f22 | 5697 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5698 | |
a5763f22 | 5699 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5700 | } |
5701 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5702 | ||
b21a15f6 HMH |
5703 | static void ibm_exit(struct ibm_struct *ibm) |
5704 | { | |
5705 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5706 | ||
5707 | list_del_init(&ibm->all_drivers); | |
5708 | ||
5709 | if (ibm->flags.acpi_notify_installed) { | |
5710 | dbg_printk(TPACPI_DBG_EXIT, | |
5711 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5712 | BUG_ON(!ibm->acpi); | |
5713 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5714 | ibm->acpi->type, | |
5715 | dispatch_acpi_notify); | |
5716 | ibm->flags.acpi_notify_installed = 0; | |
5717 | ibm->flags.acpi_notify_installed = 0; | |
5718 | } | |
5719 | ||
5720 | if (ibm->flags.proc_created) { | |
5721 | dbg_printk(TPACPI_DBG_EXIT, | |
5722 | "%s: remove_proc_entry\n", ibm->name); | |
5723 | remove_proc_entry(ibm->name, proc_dir); | |
5724 | ibm->flags.proc_created = 0; | |
5725 | } | |
5726 | ||
5727 | if (ibm->flags.acpi_driver_registered) { | |
5728 | dbg_printk(TPACPI_DBG_EXIT, | |
5729 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5730 | BUG_ON(!ibm->acpi); | |
5731 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5732 | kfree(ibm->acpi->driver); | |
5733 | ibm->acpi->driver = NULL; | |
5734 | ibm->flags.acpi_driver_registered = 0; | |
5735 | } | |
5736 | ||
5737 | if (ibm->flags.init_called && ibm->exit) { | |
5738 | ibm->exit(); | |
5739 | ibm->flags.init_called = 0; | |
5740 | } | |
5741 | ||
5742 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5743 | } | |
f74a27d4 | 5744 | |
a5763f22 | 5745 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5746 | { |
5747 | int ret; | |
a5763f22 | 5748 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5749 | struct proc_dir_entry *entry; |
5750 | ||
a5763f22 HMH |
5751 | BUG_ON(ibm == NULL); |
5752 | ||
5753 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5754 | ||
92641177 | 5755 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5756 | return 0; |
5757 | ||
fe08bc4b HMH |
5758 | dbg_printk(TPACPI_DBG_INIT, |
5759 | "probing for %s\n", ibm->name); | |
5760 | ||
a5763f22 HMH |
5761 | if (iibm->init) { |
5762 | ret = iibm->init(iibm); | |
5fba344c HMH |
5763 | if (ret > 0) |
5764 | return 0; /* probe failed */ | |
5765 | if (ret) | |
1da177e4 | 5766 | return ret; |
a5763f22 | 5767 | |
92641177 | 5768 | ibm->flags.init_called = 1; |
1da177e4 LT |
5769 | } |
5770 | ||
8d376cd6 HMH |
5771 | if (ibm->acpi) { |
5772 | if (ibm->acpi->hid) { | |
5773 | ret = register_tpacpi_subdriver(ibm); | |
5774 | if (ret) | |
5775 | goto err_out; | |
5776 | } | |
5fba344c | 5777 | |
8d376cd6 HMH |
5778 | if (ibm->acpi->notify) { |
5779 | ret = setup_acpi_notify(ibm); | |
5780 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5781 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5782 | ibm->name); |
5783 | ret = 0; | |
5784 | goto err_out; | |
5785 | } | |
5786 | if (ret < 0) | |
5787 | goto err_out; | |
5fba344c | 5788 | } |
5fba344c HMH |
5789 | } |
5790 | ||
fe08bc4b HMH |
5791 | dbg_printk(TPACPI_DBG_INIT, |
5792 | "%s installed\n", ibm->name); | |
5793 | ||
78f81cc4 BD |
5794 | if (ibm->read) { |
5795 | entry = create_proc_entry(ibm->name, | |
5796 | S_IFREG | S_IRUGO | S_IWUSR, | |
5797 | proc_dir); | |
5798 | if (!entry) { | |
e0c7dfe7 | 5799 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5800 | ibm->name); |
5fba344c HMH |
5801 | ret = -ENODEV; |
5802 | goto err_out; | |
78f81cc4 BD |
5803 | } |
5804 | entry->owner = THIS_MODULE; | |
5805 | entry->data = ibm; | |
8d376cd6 | 5806 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5807 | if (ibm->write) |
8d376cd6 | 5808 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5809 | ibm->flags.proc_created = 1; |
78f81cc4 | 5810 | } |
1da177e4 | 5811 | |
a5763f22 HMH |
5812 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5813 | ||
1da177e4 | 5814 | return 0; |
5fba344c HMH |
5815 | |
5816 | err_out: | |
fe08bc4b HMH |
5817 | dbg_printk(TPACPI_DBG_INIT, |
5818 | "%s: at error exit path with result %d\n", | |
5819 | ibm->name, ret); | |
5820 | ||
5fba344c HMH |
5821 | ibm_exit(ibm); |
5822 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5823 | } |
5824 | ||
56b6aeb0 HMH |
5825 | /* Probing */ |
5826 | ||
d5a2f2f1 | 5827 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5828 | { |
1855256c | 5829 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5830 | char ec_fw_string[18]; |
1da177e4 | 5831 | |
d5a2f2f1 HMH |
5832 | if (!tp) |
5833 | return; | |
5834 | ||
5835 | memset(tp, 0, sizeof(*tp)); | |
5836 | ||
5837 | if (dmi_name_in_vendors("IBM")) | |
5838 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5839 | else if (dmi_name_in_vendors("LENOVO")) | |
5840 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5841 | else | |
5842 | return; | |
5843 | ||
5844 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5845 | GFP_KERNEL); | |
5846 | if (!tp->bios_version_str) | |
5847 | return; | |
5848 | tp->bios_model = tp->bios_version_str[0] | |
5849 | | (tp->bios_version_str[1] << 8); | |
5850 | ||
56b6aeb0 HMH |
5851 | /* |
5852 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5853 | * X32 or newer, all Z series; Some models must have an | |
5854 | * up-to-date BIOS or they will not be detected. | |
5855 | * | |
5856 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5857 | */ | |
5858 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5859 | if (sscanf(dev->name, | |
5860 | "IBM ThinkPad Embedded Controller -[%17c", | |
5861 | ec_fw_string) == 1) { | |
5862 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5863 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5864 | |
5865 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5866 | tp->ec_model = ec_fw_string[0] | |
5867 | | (ec_fw_string[1] << 8); | |
5868 | break; | |
78f81cc4 | 5869 | } |
1da177e4 | 5870 | } |
d5a2f2f1 HMH |
5871 | |
5872 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5873 | GFP_KERNEL); | |
5874 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5875 | kfree(tp->model_str); | |
5876 | tp->model_str = NULL; | |
5877 | } | |
1da177e4 LT |
5878 | } |
5879 | ||
5fba344c HMH |
5880 | static int __init probe_for_thinkpad(void) |
5881 | { | |
5882 | int is_thinkpad; | |
5883 | ||
5884 | if (acpi_disabled) | |
5885 | return -ENODEV; | |
5886 | ||
5887 | /* | |
5888 | * Non-ancient models have better DMI tagging, but very old models | |
5889 | * don't. | |
5890 | */ | |
d5a2f2f1 | 5891 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5892 | |
5893 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 5894 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5895 | if (!ec_handle) { |
5896 | if (is_thinkpad) | |
e0c7dfe7 | 5897 | printk(TPACPI_ERR |
5fba344c HMH |
5898 | "Not yet supported ThinkPad detected!\n"); |
5899 | return -ENODEV; | |
5900 | } | |
5901 | ||
0dcef77c HMH |
5902 | /* |
5903 | * Risks a regression on very old machines, but reduces potential | |
5904 | * false positives a damn great deal | |
5905 | */ | |
5906 | if (!is_thinkpad) | |
d5a2f2f1 | 5907 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5908 | |
5909 | if (!is_thinkpad && !force_load) | |
5910 | return -ENODEV; | |
5911 | ||
5fba344c HMH |
5912 | return 0; |
5913 | } | |
5914 | ||
5915 | ||
56b6aeb0 | 5916 | /* Module init, exit, parameters */ |
1da177e4 | 5917 | |
a5763f22 HMH |
5918 | static struct ibm_init_struct ibms_init[] __initdata = { |
5919 | { | |
5920 | .init = thinkpad_acpi_driver_init, | |
5921 | .data = &thinkpad_acpi_driver_data, | |
5922 | }, | |
5923 | { | |
5924 | .init = hotkey_init, | |
5925 | .data = &hotkey_driver_data, | |
5926 | }, | |
5927 | { | |
5928 | .init = bluetooth_init, | |
5929 | .data = &bluetooth_driver_data, | |
5930 | }, | |
5931 | { | |
5932 | .init = wan_init, | |
5933 | .data = &wan_driver_data, | |
5934 | }, | |
d7c1d17d | 5935 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
5936 | { |
5937 | .init = video_init, | |
5938 | .data = &video_driver_data, | |
5939 | }, | |
d7c1d17d | 5940 | #endif |
a5763f22 HMH |
5941 | { |
5942 | .init = light_init, | |
5943 | .data = &light_driver_data, | |
5944 | }, | |
5945 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5946 | { | |
5947 | .init = dock_init, | |
5948 | .data = &dock_driver_data[0], | |
5949 | }, | |
5950 | { | |
d94a7f16 | 5951 | .init = dock_init2, |
a5763f22 HMH |
5952 | .data = &dock_driver_data[1], |
5953 | }, | |
5954 | #endif | |
5955 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5956 | { | |
5957 | .init = bay_init, | |
5958 | .data = &bay_driver_data, | |
5959 | }, | |
5960 | #endif | |
5961 | { | |
5962 | .init = cmos_init, | |
5963 | .data = &cmos_driver_data, | |
5964 | }, | |
5965 | { | |
5966 | .init = led_init, | |
5967 | .data = &led_driver_data, | |
5968 | }, | |
5969 | { | |
5970 | .init = beep_init, | |
5971 | .data = &beep_driver_data, | |
5972 | }, | |
5973 | { | |
5974 | .init = thermal_init, | |
5975 | .data = &thermal_driver_data, | |
5976 | }, | |
5977 | { | |
5978 | .data = &ecdump_driver_data, | |
5979 | }, | |
5980 | { | |
5981 | .init = brightness_init, | |
5982 | .data = &brightness_driver_data, | |
5983 | }, | |
5984 | { | |
5985 | .data = &volume_driver_data, | |
5986 | }, | |
5987 | { | |
5988 | .init = fan_init, | |
5989 | .data = &fan_driver_data, | |
5990 | }, | |
5991 | }; | |
5992 | ||
3945ac36 | 5993 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5994 | { |
5995 | unsigned int i; | |
a5763f22 | 5996 | struct ibm_struct *ibm; |
1da177e4 | 5997 | |
59f91ff1 HMH |
5998 | if (!kp || !kp->name || !val) |
5999 | return -EINVAL; | |
6000 | ||
a5763f22 HMH |
6001 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6002 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
6003 | WARN_ON(ibm == NULL); |
6004 | ||
6005 | if (!ibm || !ibm->name) | |
6006 | continue; | |
a5763f22 HMH |
6007 | |
6008 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
6009 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 6010 | return -ENOSPC; |
a5763f22 HMH |
6011 | strcpy(ibms_init[i].param, val); |
6012 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
6013 | return 0; |
6014 | } | |
a5763f22 | 6015 | } |
1da177e4 | 6016 | |
1da177e4 LT |
6017 | return -EINVAL; |
6018 | } | |
6019 | ||
56b6aeb0 | 6020 | module_param(experimental, int, 0); |
f68080f8 | 6021 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 6022 | "Enables experimental features when non-zero"); |
56b6aeb0 | 6023 | |
132ce091 | 6024 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 6025 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 6026 | |
86cc9445 | 6027 | module_param(force_load, bool, 0); |
f68080f8 | 6028 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
6029 | "Attempts to load the driver even on a " |
6030 | "mis-identified ThinkPad when true"); | |
0dcef77c | 6031 | |
86cc9445 | 6032 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 6033 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 6034 | "Enables setting fan parameters features when true"); |
ecf2a80a | 6035 | |
24d3b774 | 6036 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 6037 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
6038 | "Selects brightness control strategy: " |
6039 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 6040 | |
87cc537a | 6041 | module_param(brightness_enable, uint, 0); |
f68080f8 | 6042 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 6043 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 6044 | |
ff80f137 | 6045 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6046 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6047 | "used for backwards compatibility with userspace, " |
6048 | "see documentation"); | |
ff80f137 | 6049 | |
e0c7dfe7 | 6050 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6051 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6052 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6053 | "at module load, see documentation") |
1da177e4 | 6054 | |
e0c7dfe7 HMH |
6055 | TPACPI_PARAM(hotkey); |
6056 | TPACPI_PARAM(bluetooth); | |
6057 | TPACPI_PARAM(video); | |
6058 | TPACPI_PARAM(light); | |
85998248 | 6059 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6060 | TPACPI_PARAM(dock); |
63e5f248 | 6061 | #endif |
85998248 | 6062 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6063 | TPACPI_PARAM(bay); |
85998248 | 6064 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6065 | TPACPI_PARAM(cmos); |
6066 | TPACPI_PARAM(led); | |
6067 | TPACPI_PARAM(beep); | |
6068 | TPACPI_PARAM(ecdump); | |
6069 | TPACPI_PARAM(brightness); | |
6070 | TPACPI_PARAM(volume); | |
6071 | TPACPI_PARAM(fan); | |
78f81cc4 | 6072 | |
b21a15f6 HMH |
6073 | static void thinkpad_acpi_module_exit(void) |
6074 | { | |
6075 | struct ibm_struct *ibm, *itmp; | |
6076 | ||
6077 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6078 | ||
6079 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6080 | &tpacpi_all_drivers, | |
6081 | all_drivers) { | |
6082 | ibm_exit(ibm); | |
6083 | } | |
6084 | ||
6085 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6086 | ||
6087 | if (tpacpi_inputdev) { | |
6088 | if (tp_features.input_device_registered) | |
6089 | input_unregister_device(tpacpi_inputdev); | |
6090 | else | |
6091 | input_free_device(tpacpi_inputdev); | |
6092 | } | |
6093 | ||
6094 | if (tpacpi_hwmon) | |
6095 | hwmon_device_unregister(tpacpi_hwmon); | |
6096 | ||
6097 | if (tp_features.sensors_pdev_attrs_registered) | |
6098 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6099 | &dev_attr_thinkpad_acpi_pdev_name); | |
6100 | if (tpacpi_sensors_pdev) | |
6101 | platform_device_unregister(tpacpi_sensors_pdev); | |
6102 | if (tpacpi_pdev) | |
6103 | platform_device_unregister(tpacpi_pdev); | |
6104 | ||
6105 | if (tp_features.sensors_pdrv_attrs_registered) | |
6106 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6107 | if (tp_features.platform_drv_attrs_registered) | |
6108 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6109 | ||
6110 | if (tp_features.sensors_pdrv_registered) | |
6111 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6112 | ||
6113 | if (tp_features.platform_drv_registered) | |
6114 | platform_driver_unregister(&tpacpi_pdriver); | |
6115 | ||
6116 | if (proc_dir) | |
e0c7dfe7 | 6117 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
6118 | |
6119 | kfree(thinkpad_id.bios_version_str); | |
6120 | kfree(thinkpad_id.ec_version_str); | |
6121 | kfree(thinkpad_id.model_str); | |
6122 | } | |
6123 | ||
f74a27d4 | 6124 | |
1def7115 | 6125 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6126 | { |
6127 | int ret, i; | |
6128 | ||
8fef502e HMH |
6129 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6130 | ||
ff80f137 HMH |
6131 | /* Parameter checking */ |
6132 | if (hotkey_report_mode > 2) | |
6133 | return -EINVAL; | |
6134 | ||
54ae1501 | 6135 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6136 | |
6137 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6138 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6139 | if (ret) { |
6140 | thinkpad_acpi_module_exit(); | |
5fba344c | 6141 | return ret; |
d5a2f2f1 | 6142 | } |
1da177e4 | 6143 | |
54ae1501 | 6144 | /* Driver initialization */ |
d5a2f2f1 | 6145 | |
e0c7dfe7 HMH |
6146 | TPACPI_ACPIHANDLE_INIT(ecrd); |
6147 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6148 | |
e0c7dfe7 | 6149 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 6150 | if (!proc_dir) { |
35ff8b9f HMH |
6151 | printk(TPACPI_ERR |
6152 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 6153 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6154 | return -ENODEV; |
6155 | } | |
6156 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6157 | |
54ae1501 HMH |
6158 | ret = platform_driver_register(&tpacpi_pdriver); |
6159 | if (ret) { | |
35ff8b9f HMH |
6160 | printk(TPACPI_ERR |
6161 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
6162 | thinkpad_acpi_module_exit(); |
6163 | return ret; | |
6164 | } | |
ac36393d HMH |
6165 | tp_features.platform_drv_registered = 1; |
6166 | ||
7fd40029 HMH |
6167 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6168 | if (ret) { | |
35ff8b9f HMH |
6169 | printk(TPACPI_ERR |
6170 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
6171 | thinkpad_acpi_module_exit(); |
6172 | return ret; | |
6173 | } | |
6174 | tp_features.sensors_pdrv_registered = 1; | |
6175 | ||
176750d6 | 6176 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6177 | if (!ret) { |
6178 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
6179 | ret = tpacpi_create_driver_attributes( |
6180 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 6181 | } |
176750d6 | 6182 | if (ret) { |
35ff8b9f HMH |
6183 | printk(TPACPI_ERR |
6184 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
6185 | thinkpad_acpi_module_exit(); |
6186 | return ret; | |
6187 | } | |
2369cc94 | 6188 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6189 | |
54ae1501 HMH |
6190 | |
6191 | /* Device initialization */ | |
e0c7dfe7 | 6192 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
6193 | NULL, 0); |
6194 | if (IS_ERR(tpacpi_pdev)) { | |
6195 | ret = PTR_ERR(tpacpi_pdev); | |
6196 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 6197 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
6198 | thinkpad_acpi_module_exit(); |
6199 | return ret; | |
6200 | } | |
7fd40029 | 6201 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
6202 | TPACPI_HWMON_DRVR_NAME, |
6203 | -1, NULL, 0); | |
7fd40029 HMH |
6204 | if (IS_ERR(tpacpi_sensors_pdev)) { |
6205 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6206 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
6207 | printk(TPACPI_ERR |
6208 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
6209 | thinkpad_acpi_module_exit(); |
6210 | return ret; | |
6211 | } | |
6212 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6213 | &dev_attr_thinkpad_acpi_pdev_name); | |
6214 | if (ret) { | |
e0c7dfe7 | 6215 | printk(TPACPI_ERR |
35ff8b9f | 6216 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
6217 | thinkpad_acpi_module_exit(); |
6218 | return ret; | |
6219 | } | |
6220 | tp_features.sensors_pdev_attrs_registered = 1; | |
6221 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6222 | if (IS_ERR(tpacpi_hwmon)) { |
6223 | ret = PTR_ERR(tpacpi_hwmon); | |
6224 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 6225 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
6226 | thinkpad_acpi_module_exit(); |
6227 | return ret; | |
6228 | } | |
8523ed6f | 6229 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6230 | tpacpi_inputdev = input_allocate_device(); |
6231 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 6232 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
6233 | thinkpad_acpi_module_exit(); |
6234 | return -ENOMEM; | |
6235 | } else { | |
6236 | /* Prepare input device, but don't register */ | |
6237 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 6238 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 6239 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
6240 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6241 | thinkpad_id.vendor : | |
6242 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6243 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6244 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6245 | } | |
a5763f22 HMH |
6246 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6247 | ret = ibm_init(&ibms_init[i]); | |
6248 | if (ret >= 0 && *ibms_init[i].param) | |
6249 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6250 | if (ret < 0) { |
1def7115 | 6251 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6252 | return ret; |
6253 | } | |
6254 | } | |
7f5d1cd6 HMH |
6255 | ret = input_register_device(tpacpi_inputdev); |
6256 | if (ret < 0) { | |
e0c7dfe7 | 6257 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6258 | thinkpad_acpi_module_exit(); |
6259 | return ret; | |
6260 | } else { | |
6261 | tp_features.input_device_registered = 1; | |
6262 | } | |
1da177e4 | 6263 | |
8fef502e | 6264 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6265 | return 0; |
6266 | } | |
6267 | ||
f68080f8 HMH |
6268 | /* Please remove this in year 2009 */ |
6269 | MODULE_ALIAS("ibm_acpi"); | |
6270 | ||
6271 | /* | |
6272 | * DMI matching for module autoloading | |
6273 | * | |
6274 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6275 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6276 | * | |
6277 | * Only models listed in thinkwiki will be supported, so add yours | |
6278 | * if it is not there yet. | |
6279 | */ | |
6280 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6281 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6282 | ||
6283 | /* Non-ancient thinkpads */ | |
6284 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6285 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6286 | ||
6287 | /* Ancient thinkpad BIOSes have to be identified by | |
6288 | * BIOS type or model number, and there are far less | |
6289 | * BIOS types than model numbers... */ | |
6290 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6291 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6292 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6293 | ||
6294 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6295 | MODULE_DESCRIPTION(TPACPI_DESC); |
6296 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6297 | MODULE_LICENSE("GPL"); |
6298 | ||
1def7115 HMH |
6299 | module_init(thinkpad_acpi_module_init); |
6300 | module_exit(thinkpad_acpi_module_exit); |