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