Commit | Line | Data |
---|---|---|
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> |
a62bc916 | 6 | * Copyright (C) 2006-2007 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 | ||
e0c7dfe7 | 24 | #define TPACPI_VERSION "0.18" |
01e88f25 | 25 | #define TPACPI_SYSFS_VERSION 0x020101 |
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 | ||
417 | static int _sta(acpi_handle handle) | |
418 | { | |
419 | int status; | |
420 | ||
421 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
422 | status = 0; | |
423 | ||
424 | return status; | |
425 | } | |
426 | ||
c9bea99c HMH |
427 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
428 | { | |
429 | if (!cmos_handle) | |
430 | return -ENXIO; | |
431 | ||
432 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
433 | return -EIO; | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
56b6aeb0 HMH |
438 | /************************************************************************* |
439 | * ACPI device model | |
440 | */ | |
441 | ||
35ff8b9f HMH |
442 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
443 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
444 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
445 | ||
8d376cd6 | 446 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
447 | acpi_handle *handle, acpi_handle parent, |
448 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
449 | { |
450 | int i; | |
451 | acpi_status status; | |
452 | ||
5ae930e6 HMH |
453 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
454 | name); | |
455 | ||
56b6aeb0 HMH |
456 | for (i = 0; i < num_paths; i++) { |
457 | status = acpi_get_handle(parent, paths[i], handle); | |
458 | if (ACPI_SUCCESS(status)) { | |
459 | *path = paths[i]; | |
5ae930e6 HMH |
460 | dbg_printk(TPACPI_DBG_INIT, |
461 | "Found ACPI handle %s for %s\n", | |
462 | *path, name); | |
56b6aeb0 HMH |
463 | return; |
464 | } | |
465 | } | |
466 | ||
5ae930e6 HMH |
467 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
468 | name); | |
56b6aeb0 HMH |
469 | *handle = NULL; |
470 | } | |
471 | ||
8d376cd6 | 472 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
473 | { |
474 | struct ibm_struct *ibm = data; | |
475 | ||
8fef502e HMH |
476 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
477 | return; | |
478 | ||
8d376cd6 | 479 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
480 | return; |
481 | ||
8d376cd6 | 482 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
483 | } |
484 | ||
8d376cd6 | 485 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
486 | { |
487 | acpi_status status; | |
5ae930e6 | 488 | int rc; |
56b6aeb0 | 489 | |
8d376cd6 HMH |
490 | BUG_ON(!ibm->acpi); |
491 | ||
492 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
493 | return 0; |
494 | ||
5ae930e6 | 495 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
496 | "setting up ACPI notify for %s\n", ibm->name); |
497 | ||
5ae930e6 HMH |
498 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
499 | if (rc < 0) { | |
e0c7dfe7 | 500 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 501 | ibm->name, rc); |
56b6aeb0 HMH |
502 | return -ENODEV; |
503 | } | |
504 | ||
8d376cd6 HMH |
505 | acpi_driver_data(ibm->acpi->device) = ibm; |
506 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 507 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 508 | ibm->name); |
56b6aeb0 | 509 | |
8d376cd6 HMH |
510 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
511 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
512 | if (ACPI_FAILURE(status)) { |
513 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
514 | printk(TPACPI_NOTICE |
515 | "another device driver is already " | |
516 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 517 | } else { |
35ff8b9f HMH |
518 | printk(TPACPI_ERR |
519 | "acpi_install_notify_handler(%s) failed: %d\n", | |
520 | ibm->name, status); | |
56b6aeb0 HMH |
521 | } |
522 | return -ENODEV; | |
523 | } | |
8d376cd6 | 524 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
525 | return 0; |
526 | } | |
527 | ||
8d376cd6 | 528 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
529 | { |
530 | return 0; | |
531 | } | |
532 | ||
6700121b | 533 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 534 | { |
5ae930e6 | 535 | int rc; |
56b6aeb0 | 536 | |
fe08bc4b HMH |
537 | dbg_printk(TPACPI_DBG_INIT, |
538 | "registering %s as an ACPI driver\n", ibm->name); | |
539 | ||
8d376cd6 HMH |
540 | BUG_ON(!ibm->acpi); |
541 | ||
542 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
543 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 544 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 545 | return -ENOMEM; |
56b6aeb0 HMH |
546 | } |
547 | ||
e0c7dfe7 | 548 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 549 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 550 | |
8d376cd6 | 551 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 552 | |
5ae930e6 HMH |
553 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
554 | if (rc < 0) { | |
e0c7dfe7 | 555 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 556 | ibm->name, rc); |
8d376cd6 HMH |
557 | kfree(ibm->acpi->driver); |
558 | ibm->acpi->driver = NULL; | |
5ae930e6 | 559 | } else if (!rc) |
8d376cd6 | 560 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 561 | |
5ae930e6 | 562 | return rc; |
56b6aeb0 HMH |
563 | } |
564 | ||
565 | ||
566 | /**************************************************************************** | |
567 | **************************************************************************** | |
568 | * | |
569 | * Procfs Helpers | |
570 | * | |
571 | **************************************************************************** | |
572 | ****************************************************************************/ | |
573 | ||
8d376cd6 HMH |
574 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
575 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
576 | { |
577 | struct ibm_struct *ibm = data; | |
578 | int len; | |
579 | ||
580 | if (!ibm || !ibm->read) | |
581 | return -EINVAL; | |
582 | ||
583 | len = ibm->read(page); | |
584 | if (len < 0) | |
585 | return len; | |
586 | ||
587 | if (len <= off + count) | |
588 | *eof = 1; | |
589 | *start = page + off; | |
590 | len -= off; | |
591 | if (len > count) | |
592 | len = count; | |
593 | if (len < 0) | |
594 | len = 0; | |
595 | ||
596 | return len; | |
597 | } | |
598 | ||
8d376cd6 | 599 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 600 | const char __user *userbuf, |
8d376cd6 | 601 | unsigned long count, void *data) |
56b6aeb0 HMH |
602 | { |
603 | struct ibm_struct *ibm = data; | |
604 | char *kernbuf; | |
605 | int ret; | |
606 | ||
607 | if (!ibm || !ibm->write) | |
608 | return -EINVAL; | |
609 | ||
610 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
611 | if (!kernbuf) | |
612 | return -ENOMEM; | |
1da177e4 | 613 | |
56b6aeb0 HMH |
614 | if (copy_from_user(kernbuf, userbuf, count)) { |
615 | kfree(kernbuf); | |
616 | return -EFAULT; | |
617 | } | |
1da177e4 | 618 | |
56b6aeb0 HMH |
619 | kernbuf[count] = 0; |
620 | strcat(kernbuf, ","); | |
621 | ret = ibm->write(kernbuf); | |
622 | if (ret == 0) | |
623 | ret = count; | |
1da177e4 | 624 | |
56b6aeb0 HMH |
625 | kfree(kernbuf); |
626 | ||
627 | return ret; | |
1da177e4 LT |
628 | } |
629 | ||
630 | static char *next_cmd(char **cmds) | |
631 | { | |
632 | char *start = *cmds; | |
633 | char *end; | |
634 | ||
635 | while ((end = strchr(start, ',')) && end == start) | |
636 | start = end + 1; | |
637 | ||
638 | if (!end) | |
639 | return NULL; | |
640 | ||
641 | *end = 0; | |
642 | *cmds = end + 1; | |
643 | return start; | |
644 | } | |
645 | ||
56b6aeb0 | 646 | |
54ae1501 HMH |
647 | /**************************************************************************** |
648 | **************************************************************************** | |
649 | * | |
7f5d1cd6 | 650 | * Device model: input, hwmon and platform |
54ae1501 HMH |
651 | * |
652 | **************************************************************************** | |
653 | ****************************************************************************/ | |
654 | ||
94954cc6 | 655 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 656 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 657 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 658 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 659 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 660 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 661 | |
083f1760 HMH |
662 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
663 | pm_message_t state) | |
664 | { | |
665 | struct ibm_struct *ibm, *itmp; | |
666 | ||
667 | list_for_each_entry_safe(ibm, itmp, | |
668 | &tpacpi_all_drivers, | |
669 | all_drivers) { | |
670 | if (ibm->suspend) | |
671 | (ibm->suspend)(state); | |
672 | } | |
673 | ||
674 | return 0; | |
675 | } | |
676 | ||
e295e850 HMH |
677 | static int tpacpi_resume_handler(struct platform_device *pdev) |
678 | { | |
679 | struct ibm_struct *ibm, *itmp; | |
680 | ||
681 | list_for_each_entry_safe(ibm, itmp, | |
682 | &tpacpi_all_drivers, | |
683 | all_drivers) { | |
684 | if (ibm->resume) | |
685 | (ibm->resume)(); | |
686 | } | |
687 | ||
688 | return 0; | |
689 | } | |
690 | ||
54ae1501 HMH |
691 | static struct platform_driver tpacpi_pdriver = { |
692 | .driver = { | |
e0c7dfe7 | 693 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
694 | .owner = THIS_MODULE, |
695 | }, | |
083f1760 | 696 | .suspend = tpacpi_suspend_handler, |
e295e850 | 697 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
698 | }; |
699 | ||
7fd40029 HMH |
700 | static struct platform_driver tpacpi_hwmon_pdriver = { |
701 | .driver = { | |
e0c7dfe7 | 702 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
703 | .owner = THIS_MODULE, |
704 | }, | |
705 | }; | |
54ae1501 | 706 | |
176750d6 | 707 | /************************************************************************* |
b21a15f6 | 708 | * sysfs support helpers |
176750d6 HMH |
709 | */ |
710 | ||
b21a15f6 HMH |
711 | struct attribute_set { |
712 | unsigned int members, max_members; | |
713 | struct attribute_group group; | |
176750d6 HMH |
714 | }; |
715 | ||
7252374a HMH |
716 | struct attribute_set_obj { |
717 | struct attribute_set s; | |
718 | struct attribute *a; | |
719 | } __attribute__((packed)); | |
720 | ||
721 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 722 | const char *name) |
7252374a HMH |
723 | { |
724 | struct attribute_set_obj *sobj; | |
725 | ||
726 | if (max_members == 0) | |
727 | return NULL; | |
728 | ||
729 | /* Allocates space for implicit NULL at the end too */ | |
730 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
731 | max_members * sizeof(struct attribute *), | |
732 | GFP_KERNEL); | |
733 | if (!sobj) | |
734 | return NULL; | |
735 | sobj->s.max_members = max_members; | |
736 | sobj->s.group.attrs = &sobj->a; | |
737 | sobj->s.group.name = name; | |
738 | ||
739 | return &sobj->s; | |
740 | } | |
741 | ||
f74a27d4 HMH |
742 | #define destroy_attr_set(_set) \ |
743 | kfree(_set); | |
744 | ||
7252374a | 745 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 746 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
747 | { |
748 | if (!s || !attr) | |
749 | return -EINVAL; | |
750 | ||
751 | if (s->members >= s->max_members) | |
752 | return -ENOMEM; | |
753 | ||
754 | s->group.attrs[s->members] = attr; | |
755 | s->members++; | |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
35ff8b9f | 760 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
761 | struct attribute **attr, |
762 | unsigned int count) | |
763 | { | |
764 | int i, res; | |
765 | ||
766 | for (i = 0; i < count; i++) { | |
767 | res = add_to_attr_set(s, attr[i]); | |
768 | if (res) | |
769 | return res; | |
770 | } | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
35ff8b9f | 775 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
776 | { |
777 | sysfs_remove_group(kobj, &s->group); | |
778 | destroy_attr_set(s); | |
779 | } | |
780 | ||
f74a27d4 HMH |
781 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
782 | sysfs_create_group(_kobj, &_attr_set->group) | |
783 | ||
7252374a HMH |
784 | static int parse_strtoul(const char *buf, |
785 | unsigned long max, unsigned long *value) | |
786 | { | |
787 | char *endp; | |
788 | ||
32afbf07 HMH |
789 | while (*buf && isspace(*buf)) |
790 | buf++; | |
7252374a HMH |
791 | *value = simple_strtoul(buf, &endp, 0); |
792 | while (*endp && isspace(*endp)) | |
793 | endp++; | |
794 | if (*endp || *value > max) | |
795 | return -EINVAL; | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
56b6aeb0 | 800 | /************************************************************************* |
b21a15f6 | 801 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
802 | */ |
803 | ||
b21a15f6 HMH |
804 | /* interface_version --------------------------------------------------- */ |
805 | static ssize_t tpacpi_driver_interface_version_show( | |
806 | struct device_driver *drv, | |
807 | char *buf) | |
1da177e4 | 808 | { |
b21a15f6 HMH |
809 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
810 | } | |
811 | ||
812 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
813 | tpacpi_driver_interface_version_show, NULL); | |
814 | ||
815 | /* debug_level --------------------------------------------------------- */ | |
816 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
817 | char *buf) | |
818 | { | |
819 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
820 | } | |
821 | ||
822 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
823 | const char *buf, size_t count) | |
824 | { | |
825 | unsigned long t; | |
826 | ||
827 | if (parse_strtoul(buf, 0xffff, &t)) | |
828 | return -EINVAL; | |
829 | ||
830 | dbg_level = t; | |
831 | ||
832 | return count; | |
833 | } | |
834 | ||
835 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
836 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
837 | ||
838 | /* version ------------------------------------------------------------- */ | |
839 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
840 | char *buf) | |
841 | { | |
35ff8b9f HMH |
842 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
843 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
844 | } |
845 | ||
846 | static DRIVER_ATTR(version, S_IRUGO, | |
847 | tpacpi_driver_version_show, NULL); | |
848 | ||
849 | /* --------------------------------------------------------------------- */ | |
850 | ||
35ff8b9f | 851 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
852 | &driver_attr_debug_level, &driver_attr_version, |
853 | &driver_attr_interface_version, | |
854 | }; | |
855 | ||
856 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
857 | { | |
858 | int i, res; | |
859 | ||
860 | i = 0; | |
861 | res = 0; | |
862 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
863 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
864 | i++; | |
865 | } | |
866 | ||
867 | return res; | |
868 | } | |
869 | ||
870 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
871 | { | |
872 | int i; | |
873 | ||
35ff8b9f | 874 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
875 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
876 | } | |
877 | ||
878 | /**************************************************************************** | |
879 | **************************************************************************** | |
880 | * | |
881 | * Subdrivers | |
882 | * | |
883 | **************************************************************************** | |
884 | ****************************************************************************/ | |
885 | ||
886 | /************************************************************************* | |
887 | * thinkpad-acpi init subdriver | |
888 | */ | |
889 | ||
890 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
891 | { | |
e0c7dfe7 HMH |
892 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
893 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 894 | |
e0c7dfe7 | 895 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
896 | (thinkpad_id.bios_version_str) ? |
897 | thinkpad_id.bios_version_str : "unknown", | |
898 | (thinkpad_id.ec_version_str) ? | |
899 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
900 | |
901 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
e0c7dfe7 | 902 | printk(TPACPI_INFO "%s %s\n", |
d5a2f2f1 HMH |
903 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
904 | "IBM" : ((thinkpad_id.vendor == | |
905 | PCI_VENDOR_ID_LENOVO) ? | |
906 | "Lenovo" : "Unknown vendor"), | |
907 | thinkpad_id.model_str); | |
3945ac36 | 908 | |
1da177e4 LT |
909 | return 0; |
910 | } | |
911 | ||
643f12db | 912 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
913 | { |
914 | int len = 0; | |
915 | ||
e0c7dfe7 HMH |
916 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
917 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
918 | |
919 | return len; | |
920 | } | |
921 | ||
a5763f22 HMH |
922 | static struct ibm_struct thinkpad_acpi_driver_data = { |
923 | .name = "driver", | |
924 | .read = thinkpad_acpi_driver_read, | |
925 | }; | |
926 | ||
56b6aeb0 HMH |
927 | /************************************************************************* |
928 | * Hotkey subdriver | |
929 | */ | |
930 | ||
f74a27d4 HMH |
931 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
932 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
933 | TP_ACPI_HOTKEYSCAN_FNF2, | |
934 | TP_ACPI_HOTKEYSCAN_FNF3, | |
935 | TP_ACPI_HOTKEYSCAN_FNF4, | |
936 | TP_ACPI_HOTKEYSCAN_FNF5, | |
937 | TP_ACPI_HOTKEYSCAN_FNF6, | |
938 | TP_ACPI_HOTKEYSCAN_FNF7, | |
939 | TP_ACPI_HOTKEYSCAN_FNF8, | |
940 | TP_ACPI_HOTKEYSCAN_FNF9, | |
941 | TP_ACPI_HOTKEYSCAN_FNF10, | |
942 | TP_ACPI_HOTKEYSCAN_FNF11, | |
943 | TP_ACPI_HOTKEYSCAN_FNF12, | |
944 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
945 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
946 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
947 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
948 | TP_ACPI_HOTKEYSCAN_FNEND, | |
949 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
950 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
951 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
952 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
953 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
954 | TP_ACPI_HOTKEYSCAN_MUTE, | |
955 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
956 | }; | |
957 | ||
01e88f25 HMH |
958 | enum { /* Keys available through NVRAM polling */ |
959 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
960 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
961 | }; | |
962 | ||
963 | enum { /* Positions of some of the keys in hotkey masks */ | |
964 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
965 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
966 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
967 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
968 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
969 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
970 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
971 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
972 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
973 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
974 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
975 | }; | |
976 | ||
977 | enum { /* NVRAM to ACPI HKEY group map */ | |
978 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
979 | TP_ACPI_HKEY_ZOOM_MASK | | |
980 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
981 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
982 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
983 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
984 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
985 | TP_ACPI_HKEY_VOLDWN_MASK | | |
986 | TP_ACPI_HKEY_MUTE_MASK, | |
987 | }; | |
988 | ||
989 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
990 | struct tp_nvram_state { | |
991 | u16 thinkpad_toggle:1; | |
992 | u16 zoom_toggle:1; | |
993 | u16 display_toggle:1; | |
994 | u16 thinklight_toggle:1; | |
995 | u16 hibernate_toggle:1; | |
996 | u16 displayexp_toggle:1; | |
997 | u16 display_state:1; | |
998 | u16 brightness_toggle:1; | |
999 | u16 volume_toggle:1; | |
1000 | u16 mute:1; | |
1001 | ||
1002 | u8 brightness_level; | |
1003 | u8 volume_level; | |
1004 | }; | |
1005 | ||
1006 | static struct task_struct *tpacpi_hotkey_task; | |
1007 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1008 | static int hotkey_poll_freq = 10; /* Hz */ | |
1009 | static struct mutex hotkey_thread_mutex; | |
1010 | static struct mutex hotkey_thread_data_mutex; | |
1011 | static unsigned int hotkey_config_change; | |
1012 | ||
1013 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1014 | ||
1015 | #define hotkey_source_mask 0U | |
1016 | ||
1017 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1018 | ||
f74a27d4 HMH |
1019 | static struct mutex hotkey_mutex; |
1020 | ||
78f81cc4 | 1021 | static int hotkey_orig_status; |
ae92bd17 | 1022 | static u32 hotkey_orig_mask; |
9b010de5 | 1023 | static u32 hotkey_all_mask; |
6a38abbf | 1024 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1025 | static u32 hotkey_mask; |
6a38abbf | 1026 | |
b21a15f6 HMH |
1027 | static unsigned int hotkey_report_mode; |
1028 | ||
edf0e0e5 | 1029 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1030 | |
94954cc6 | 1031 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1032 | |
01e88f25 HMH |
1033 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1034 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1035 | do { \ |
1036 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1037 | hotkey_config_change++; \ | |
1038 | } while (0); | |
01e88f25 HMH |
1039 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1040 | mutex_unlock(&hotkey_thread_data_mutex); | |
1041 | #else | |
1042 | #define HOTKEY_CONFIG_CRITICAL_START | |
1043 | #define HOTKEY_CONFIG_CRITICAL_END | |
1044 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1045 | ||
74941a69 HMH |
1046 | static int hotkey_get_wlsw(int *status) |
1047 | { | |
1048 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1049 | return -EIO; | |
1050 | return 0; | |
1051 | } | |
1052 | ||
b2c985e7 HMH |
1053 | /* |
1054 | * Call with hotkey_mutex held | |
1055 | */ | |
1056 | static int hotkey_mask_get(void) | |
1057 | { | |
01e88f25 HMH |
1058 | u32 m = 0; |
1059 | ||
b2c985e7 | 1060 | if (tp_features.hotkey_mask) { |
01e88f25 | 1061 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1062 | return -EIO; |
1063 | } | |
01e88f25 | 1064 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1065 | |
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | /* | |
1070 | * Call with hotkey_mutex held | |
1071 | */ | |
1072 | static int hotkey_mask_set(u32 mask) | |
1073 | { | |
1074 | int i; | |
1075 | int rc = 0; | |
1076 | ||
1077 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1078 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1079 | for (i = 0; i < 32; i++) { |
1080 | u32 m = 1 << i; | |
01e88f25 HMH |
1081 | /* enable in firmware mask only keys not in NVRAM |
1082 | * mode, but enable the key in the cached hotkey_mask | |
1083 | * regardless of mode, or the key will end up | |
1084 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1085 | if (!acpi_evalf(hkey_handle, |
1086 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1087 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1088 | rc = -EIO; |
1089 | break; | |
1090 | } else { | |
1091 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1092 | } | |
1093 | } | |
01e88f25 | 1094 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1095 | |
1096 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1097 | if (!hotkey_mask_get() && !rc && |
1098 | (hotkey_mask & ~hotkey_source_mask) != | |
1099 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1100 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1101 | "requested hot key mask 0x%08x, but " |
1102 | "firmware forced it to 0x%08x\n", | |
1103 | mask, hotkey_mask); | |
1104 | } | |
01e88f25 HMH |
1105 | } else { |
1106 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1107 | HOTKEY_CONFIG_CRITICAL_START | |
1108 | hotkey_mask = mask & hotkey_source_mask; | |
1109 | HOTKEY_CONFIG_CRITICAL_END | |
1110 | hotkey_mask_get(); | |
1111 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1112 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1113 | "requested hot key mask 0x%08x, " |
1114 | "forced to 0x%08x (NVRAM poll mask is " | |
1115 | "0x%08x): no firmware mask support\n", | |
1116 | mask, hotkey_mask, hotkey_source_mask); | |
1117 | } | |
1118 | #else | |
1119 | hotkey_mask_get(); | |
1120 | rc = -ENXIO; | |
1121 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1122 | } |
1123 | ||
1124 | return rc; | |
1125 | } | |
1126 | ||
1127 | static int hotkey_status_get(int *status) | |
1128 | { | |
1129 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1130 | return -EIO; | |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | static int hotkey_status_set(int status) | |
1136 | { | |
1137 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1138 | return -EIO; | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
b7c8c200 HMH |
1143 | static void tpacpi_input_send_radiosw(void) |
1144 | { | |
1145 | int wlsw; | |
1146 | ||
1147 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1148 | ||
1149 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { | |
1150 | input_report_switch(tpacpi_inputdev, | |
1151 | SW_RADIO, !!wlsw); | |
1152 | input_sync(tpacpi_inputdev); | |
1153 | } | |
1154 | ||
1155 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1156 | } | |
1157 | ||
1158 | static void tpacpi_input_send_key(unsigned int scancode) | |
1159 | { | |
1160 | unsigned int keycode; | |
1161 | ||
1162 | keycode = hotkey_keycode_map[scancode]; | |
1163 | ||
1164 | if (keycode != KEY_RESERVED) { | |
1165 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1166 | ||
1167 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1168 | if (keycode == KEY_UNKNOWN) | |
1169 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1170 | scancode); | |
1171 | input_sync(tpacpi_inputdev); | |
1172 | ||
1173 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1174 | if (keycode == KEY_UNKNOWN) | |
1175 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1176 | scancode); | |
1177 | input_sync(tpacpi_inputdev); | |
1178 | ||
1179 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1180 | } | |
1181 | } | |
1182 | ||
01e88f25 HMH |
1183 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1184 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1185 | ||
1186 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1187 | { | |
1188 | tpacpi_input_send_key(scancode); | |
1189 | if (hotkey_report_mode < 2) { | |
1190 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1191 | 0x80, 0x1001 + scancode); | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1196 | { | |
1197 | u8 d; | |
1198 | ||
1199 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1200 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1201 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1202 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1203 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1204 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1205 | } | |
1206 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1207 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1208 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1209 | } | |
1210 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1211 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1212 | n->displayexp_toggle = | |
1213 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1214 | } | |
1215 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1216 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1217 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1218 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1219 | n->brightness_toggle = | |
1220 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1221 | } | |
1222 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1223 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1224 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1225 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1226 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1227 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1232 | do { \ |
1233 | if ((mask & (1 << __scancode)) && \ | |
1234 | oldn->__member != newn->__member) \ | |
1235 | tpacpi_hotkey_send_key(__scancode); \ | |
1236 | } while (0) | |
01e88f25 HMH |
1237 | |
1238 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1239 | do { if (mask & (1 << __scancode)) \ | |
1240 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1241 | ||
1242 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1243 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1244 | u32 mask) |
1245 | { | |
1246 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1247 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1248 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1249 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1250 | ||
1251 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1252 | ||
1253 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1254 | ||
1255 | /* handle volume */ | |
1256 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1257 | if (oldn->mute != newn->mute) { | |
1258 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1259 | } | |
1260 | if (oldn->volume_level > newn->volume_level) { | |
1261 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1262 | } else if (oldn->volume_level < newn->volume_level) { | |
1263 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1264 | } else if (oldn->mute == newn->mute) { | |
1265 | /* repeated key presses that didn't change state */ | |
1266 | if (newn->mute) { | |
1267 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1268 | } else if (newn->volume_level != 0) { | |
1269 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1270 | } else { | |
1271 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1272 | } | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* handle brightness */ | |
1277 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1278 | if (oldn->brightness_level < newn->brightness_level) { | |
1279 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1280 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1281 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1282 | } else { | |
1283 | /* repeated key presses that didn't change state */ | |
1284 | if (newn->brightness_level != 0) { | |
1285 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1286 | } else { | |
1287 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1288 | } | |
1289 | } | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | #undef TPACPI_COMPARE_KEY | |
1294 | #undef TPACPI_MAY_SEND_KEY | |
1295 | ||
1296 | static int hotkey_kthread(void *data) | |
1297 | { | |
1298 | struct tp_nvram_state s[2]; | |
1299 | u32 mask; | |
1300 | unsigned int si, so; | |
1301 | unsigned long t; | |
1302 | unsigned int change_detector, must_reset; | |
1303 | ||
1304 | mutex_lock(&hotkey_thread_mutex); | |
1305 | ||
1306 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1307 | goto exit; | |
1308 | ||
1309 | set_freezable(); | |
1310 | ||
1311 | so = 0; | |
1312 | si = 1; | |
1313 | t = 0; | |
1314 | ||
1315 | /* Initial state for compares */ | |
1316 | mutex_lock(&hotkey_thread_data_mutex); | |
1317 | change_detector = hotkey_config_change; | |
1318 | mask = hotkey_source_mask & hotkey_mask; | |
1319 | mutex_unlock(&hotkey_thread_data_mutex); | |
1320 | hotkey_read_nvram(&s[so], mask); | |
1321 | ||
1322 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1323 | if (t == 0) | |
1324 | t = 1000/hotkey_poll_freq; | |
1325 | t = msleep_interruptible(t); | |
1326 | if (unlikely(kthread_should_stop())) | |
1327 | break; | |
1328 | must_reset = try_to_freeze(); | |
1329 | if (t > 0 && !must_reset) | |
1330 | continue; | |
1331 | ||
1332 | mutex_lock(&hotkey_thread_data_mutex); | |
1333 | if (must_reset || hotkey_config_change != change_detector) { | |
1334 | /* forget old state on thaw or config change */ | |
1335 | si = so; | |
1336 | t = 0; | |
1337 | change_detector = hotkey_config_change; | |
1338 | } | |
1339 | mask = hotkey_source_mask & hotkey_mask; | |
1340 | mutex_unlock(&hotkey_thread_data_mutex); | |
1341 | ||
1342 | if (likely(mask)) { | |
1343 | hotkey_read_nvram(&s[si], mask); | |
1344 | if (likely(si != so)) { | |
1345 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1346 | mask); |
01e88f25 HMH |
1347 | } |
1348 | } | |
1349 | ||
1350 | so = si; | |
1351 | si ^= 1; | |
1352 | } | |
1353 | ||
1354 | exit: | |
1355 | mutex_unlock(&hotkey_thread_mutex); | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | static void hotkey_poll_stop_sync(void) | |
1360 | { | |
1361 | if (tpacpi_hotkey_task) { | |
1362 | if (frozen(tpacpi_hotkey_task) || | |
1363 | freezing(tpacpi_hotkey_task)) | |
1364 | thaw_process(tpacpi_hotkey_task); | |
1365 | ||
1366 | kthread_stop(tpacpi_hotkey_task); | |
1367 | tpacpi_hotkey_task = NULL; | |
1368 | mutex_lock(&hotkey_thread_mutex); | |
1369 | /* at this point, the thread did exit */ | |
1370 | mutex_unlock(&hotkey_thread_mutex); | |
1371 | } | |
1372 | } | |
1373 | ||
1374 | /* call with hotkey_mutex held */ | |
1375 | static void hotkey_poll_setup(int may_warn) | |
1376 | { | |
1377 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1378 | hotkey_poll_freq > 0 && | |
1379 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1380 | if (!tpacpi_hotkey_task) { | |
1381 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
35ff8b9f HMH |
1382 | NULL, |
1383 | TPACPI_FILE "d"); | |
01e88f25 HMH |
1384 | if (IS_ERR(tpacpi_hotkey_task)) { |
1385 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1386 | printk(TPACPI_ERR |
1387 | "could not create kernel thread " | |
01e88f25 HMH |
1388 | "for hotkey polling\n"); |
1389 | } | |
1390 | } | |
1391 | } else { | |
1392 | hotkey_poll_stop_sync(); | |
1393 | if (may_warn && | |
1394 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1395 | printk(TPACPI_NOTICE |
1396 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1397 | "which is currently disabled\n", |
1398 | hotkey_source_mask); | |
1399 | } | |
1400 | } | |
1401 | } | |
1402 | ||
1403 | static void hotkey_poll_setup_safe(int may_warn) | |
1404 | { | |
1405 | mutex_lock(&hotkey_mutex); | |
1406 | hotkey_poll_setup(may_warn); | |
1407 | mutex_unlock(&hotkey_mutex); | |
1408 | } | |
1409 | ||
1410 | static int hotkey_inputdev_open(struct input_dev *dev) | |
1411 | { | |
1412 | switch (tpacpi_lifecycle) { | |
1413 | case TPACPI_LIFE_INIT: | |
1414 | /* | |
1415 | * hotkey_init will call hotkey_poll_setup_safe | |
1416 | * at the appropriate moment | |
1417 | */ | |
1418 | return 0; | |
1419 | case TPACPI_LIFE_EXITING: | |
1420 | return -EBUSY; | |
1421 | case TPACPI_LIFE_RUNNING: | |
1422 | hotkey_poll_setup_safe(0); | |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1427 | BUG(); | |
1428 | return -EBUSY; | |
1429 | } | |
1430 | ||
1431 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1432 | { | |
1433 | /* disable hotkey polling when possible */ | |
1434 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1435 | hotkey_poll_setup_safe(0); | |
1436 | } | |
1437 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1438 | ||
a0416420 HMH |
1439 | /* sysfs hotkey enable ------------------------------------------------- */ |
1440 | static ssize_t hotkey_enable_show(struct device *dev, | |
1441 | struct device_attribute *attr, | |
1442 | char *buf) | |
1443 | { | |
ae92bd17 | 1444 | int res, status; |
a0416420 | 1445 | |
b2c985e7 | 1446 | res = hotkey_status_get(&status); |
a0416420 HMH |
1447 | if (res) |
1448 | return res; | |
1449 | ||
1450 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1451 | } | |
1452 | ||
1453 | static ssize_t hotkey_enable_store(struct device *dev, | |
1454 | struct device_attribute *attr, | |
1455 | const char *buf, size_t count) | |
1456 | { | |
1457 | unsigned long t; | |
b2c985e7 | 1458 | int res; |
a0416420 HMH |
1459 | |
1460 | if (parse_strtoul(buf, 1, &t)) | |
1461 | return -EINVAL; | |
1462 | ||
b2c985e7 | 1463 | res = hotkey_status_set(t); |
a0416420 HMH |
1464 | |
1465 | return (res) ? res : count; | |
1466 | } | |
1467 | ||
1468 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1469 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1470 | hotkey_enable_show, hotkey_enable_store); |
1471 | ||
1472 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1473 | static ssize_t hotkey_mask_show(struct device *dev, | |
1474 | struct device_attribute *attr, | |
1475 | char *buf) | |
1476 | { | |
b2c985e7 | 1477 | int res; |
a0416420 | 1478 | |
b2c985e7 HMH |
1479 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1480 | return -ERESTARTSYS; | |
1481 | res = hotkey_mask_get(); | |
1482 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1483 | |
b2c985e7 HMH |
1484 | return (res)? |
1485 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1486 | } |
1487 | ||
1488 | static ssize_t hotkey_mask_store(struct device *dev, | |
1489 | struct device_attribute *attr, | |
1490 | const char *buf, size_t count) | |
1491 | { | |
1492 | unsigned long t; | |
b2c985e7 | 1493 | int res; |
a0416420 | 1494 | |
ae92bd17 | 1495 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1496 | return -EINVAL; |
1497 | ||
b2c985e7 HMH |
1498 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1499 | return -ERESTARTSYS; | |
1500 | ||
1501 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1502 | |
1503 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1504 | hotkey_poll_setup(1); | |
1505 | #endif | |
1506 | ||
b2c985e7 | 1507 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1508 | |
1509 | return (res) ? res : count; | |
1510 | } | |
1511 | ||
1512 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1513 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1514 | hotkey_mask_show, hotkey_mask_store); |
1515 | ||
1516 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1517 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1518 | struct device_attribute *attr, | |
1519 | char *buf) | |
1520 | { | |
1521 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1522 | } | |
1523 | ||
1524 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1525 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1526 | |
1527 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1528 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1529 | struct device_attribute *attr, | |
1530 | char *buf) | |
1531 | { | |
ae92bd17 | 1532 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1533 | } |
1534 | ||
1535 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1536 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1537 | |
9b010de5 HMH |
1538 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1539 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1540 | struct device_attribute *attr, | |
1541 | char *buf) | |
1542 | { | |
01e88f25 HMH |
1543 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1544 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1545 | } |
1546 | ||
1547 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1548 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1549 | ||
1550 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1551 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1552 | struct device_attribute *attr, | |
1553 | char *buf) | |
1554 | { | |
1555 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1556 | (hotkey_all_mask | hotkey_source_mask) |
1557 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1558 | } |
1559 | ||
1560 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1561 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1562 | hotkey_recommended_mask_show, NULL); | |
1563 | ||
01e88f25 HMH |
1564 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1565 | ||
1566 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1567 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1568 | struct device_attribute *attr, | |
1569 | char *buf) | |
1570 | { | |
1571 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1572 | } | |
1573 | ||
1574 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1575 | struct device_attribute *attr, | |
1576 | const char *buf, size_t count) | |
1577 | { | |
1578 | unsigned long t; | |
1579 | ||
1580 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1581 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1582 | return -EINVAL; | |
1583 | ||
1584 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1585 | return -ERESTARTSYS; | |
1586 | ||
1587 | HOTKEY_CONFIG_CRITICAL_START | |
1588 | hotkey_source_mask = t; | |
1589 | HOTKEY_CONFIG_CRITICAL_END | |
1590 | ||
1591 | hotkey_poll_setup(1); | |
1592 | ||
1593 | mutex_unlock(&hotkey_mutex); | |
1594 | ||
1595 | return count; | |
1596 | } | |
1597 | ||
1598 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1599 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1600 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1601 | ||
1602 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1603 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1604 | struct device_attribute *attr, | |
1605 | char *buf) | |
1606 | { | |
1607 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1608 | } | |
1609 | ||
1610 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1611 | struct device_attribute *attr, | |
1612 | const char *buf, size_t count) | |
1613 | { | |
1614 | unsigned long t; | |
1615 | ||
1616 | if (parse_strtoul(buf, 25, &t)) | |
1617 | return -EINVAL; | |
1618 | ||
1619 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1620 | return -ERESTARTSYS; | |
1621 | ||
1622 | hotkey_poll_freq = t; | |
1623 | ||
1624 | hotkey_poll_setup(1); | |
1625 | mutex_unlock(&hotkey_mutex); | |
1626 | ||
1627 | return count; | |
1628 | } | |
1629 | ||
1630 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1631 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1632 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1633 | ||
1634 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1635 | ||
74941a69 HMH |
1636 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
1637 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
1638 | struct device_attribute *attr, | |
1639 | char *buf) | |
1640 | { | |
1641 | int res, s; | |
1642 | res = hotkey_get_wlsw(&s); | |
1643 | if (res < 0) | |
1644 | return res; | |
1645 | ||
1646 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1647 | } | |
1648 | ||
1649 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1650 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1651 | ||
ff80f137 HMH |
1652 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1653 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1654 | struct device_attribute *attr, | |
1655 | char *buf) | |
1656 | { | |
1657 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1658 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1659 | } | |
1660 | ||
1661 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1662 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1663 | ||
a0416420 HMH |
1664 | /* --------------------------------------------------------------------- */ |
1665 | ||
ff80f137 HMH |
1666 | static struct attribute *hotkey_attributes[] __initdata = { |
1667 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1668 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1669 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1670 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1671 | &dev_attr_hotkey_mask.attr, | |
1672 | &dev_attr_hotkey_all_mask.attr, | |
1673 | &dev_attr_hotkey_recommended_mask.attr, | |
1674 | &dev_attr_hotkey_source_mask.attr, | |
1675 | &dev_attr_hotkey_poll_freq.attr, | |
1676 | #endif | |
ff80f137 HMH |
1677 | }; |
1678 | ||
1679 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1680 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1681 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1682 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1683 | &dev_attr_hotkey_all_mask.attr, |
1684 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1685 | #endif |
a0416420 HMH |
1686 | }; |
1687 | ||
a5763f22 | 1688 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1689 | { |
0f089147 HMH |
1690 | /* Requirements for changing the default keymaps: |
1691 | * | |
1692 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1693 | * good reasons. Do not change them unless you have deep | |
1694 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1695 | * the various ThinkPad models. The driver behaves | |
1696 | * differently for KEY_RESERVED: such keys have their | |
1697 | * hot key mask *unset* in mask_recommended, and also | |
1698 | * in the initial hot key mask programmed into the | |
1699 | * firmware at driver load time, which means the firm- | |
1700 | * ware may react very differently if you change them to | |
1701 | * something else; | |
1702 | * | |
1703 | * 2. You must be subscribed to the linux-thinkpad and | |
1704 | * ibm-acpi-devel mailing lists, and you should read the | |
1705 | * list archives since 2007 if you want to change the | |
1706 | * keymaps. This requirement exists so that you will | |
1707 | * know the past history of problems with the thinkpad- | |
1708 | * acpi driver keymaps, and also that you will be | |
1709 | * listening to any bug reports; | |
1710 | * | |
1711 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1712 | * for merging, *ever*. Send them to the linux-acpi | |
1713 | * mailinglist for comments. Merging is to be done only | |
1714 | * through acpi-test and the ACPI maintainer. | |
1715 | * | |
1716 | * If the above is too much to ask, don't change the keymap. | |
1717 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1718 | */ | |
edf0e0e5 HMH |
1719 | static u16 ibm_keycode_map[] __initdata = { |
1720 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1721 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1722 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1723 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1724 | |
1725 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1726 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1727 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1728 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1729 | |
1730 | /* brightness: firmware always reacts to them, unless | |
1731 | * X.org did some tricks in the radeon BIOS scratch | |
1732 | * registers of *some* models */ | |
e927c08d | 1733 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1734 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1735 | |
1736 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1737 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1738 | |
edf0e0e5 HMH |
1739 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1740 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1741 | |
1742 | /* Volume: firmware always react to it and reprograms | |
1743 | * the built-in *extra* mixer. Never map it to control | |
1744 | * another mixer by default. */ | |
e927c08d HMH |
1745 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1746 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1747 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1748 | |
edf0e0e5 | 1749 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1750 | |
edf0e0e5 HMH |
1751 | /* (assignments unknown, please report if found) */ |
1752 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1753 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1754 | }; | |
1755 | static u16 lenovo_keycode_map[] __initdata = { | |
1756 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1757 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1758 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1759 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1760 | |
1761 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1762 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1763 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1764 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1765 | |
56a185b4 | 1766 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1767 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1768 | |
edf0e0e5 | 1769 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1770 | |
edf0e0e5 HMH |
1771 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1772 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1773 | |
1774 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1775 | * react to it and reprograms the built-in *extra* mixer. | |
1776 | * Never map it to control another mixer by default. | |
1777 | * | |
1778 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1779 | * these over the regular keyboard, so these are no-ops, | |
1780 | * but there are still weird bugs re. MUTE, so do not | |
1781 | * change unless you get test reports from all Lenovo | |
1782 | * models. May cause the BIOS to interfere with the | |
1783 | * HDA mixer. | |
1784 | */ | |
e927c08d HMH |
1785 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1786 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1787 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1788 | |
edf0e0e5 | 1789 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1790 | |
edf0e0e5 HMH |
1791 | /* (assignments unknown, please report if found) */ |
1792 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1793 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1794 | }; | |
1795 | ||
1796 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1797 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1798 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1799 | ||
6a38abbf | 1800 | int res, i; |
74941a69 | 1801 | int status; |
1b6521dc | 1802 | int hkeyv; |
b86c4722 | 1803 | |
fe08bc4b HMH |
1804 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1805 | ||
6a38abbf | 1806 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
1807 | BUG_ON(tpacpi_inputdev->open != NULL || |
1808 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 1809 | |
e0c7dfe7 | 1810 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1811 | mutex_init(&hotkey_mutex); |
5fba344c | 1812 | |
01e88f25 HMH |
1813 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1814 | mutex_init(&hotkey_thread_mutex); | |
1815 | mutex_init(&hotkey_thread_data_mutex); | |
1816 | #endif | |
1817 | ||
56b6aeb0 | 1818 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1819 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1820 | |
fe08bc4b | 1821 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1822 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1823 | |
d8fd94d9 | 1824 | if (tp_features.hotkey) { |
01e88f25 | 1825 | hotkey_dev_attributes = create_attr_set(10, NULL); |
a0416420 HMH |
1826 | if (!hotkey_dev_attributes) |
1827 | return -ENOMEM; | |
ff80f137 HMH |
1828 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1829 | hotkey_attributes, | |
1830 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1831 | if (res) |
1832 | return res; | |
1833 | ||
56b6aeb0 | 1834 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1835 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1836 | for HKEY interface version 0x100 */ | |
1837 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1838 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 1839 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 1840 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
1841 | printk(TPACPI_ERR "please report this to %s\n", |
1842 | TPACPI_MAIL); | |
1b6521dc HMH |
1843 | } else { |
1844 | /* | |
1845 | * MHKV 0x100 in A31, R40, R40e, | |
1846 | * T4x, X31, and later | |
01e88f25 | 1847 | */ |
1b6521dc HMH |
1848 | tp_features.hotkey_mask = 1; |
1849 | } | |
1850 | } | |
56b6aeb0 | 1851 | |
fe08bc4b | 1852 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1853 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1854 | |
9b010de5 | 1855 | if (tp_features.hotkey_mask) { |
9b010de5 | 1856 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 1857 | "MHKA", "qd")) { |
e0c7dfe7 | 1858 | printk(TPACPI_ERR |
1b6521dc HMH |
1859 | "missing MHKA handler, " |
1860 | "please report this to %s\n", | |
e0c7dfe7 | 1861 | TPACPI_MAIL); |
35ff8b9f HMH |
1862 | /* FN+F12, FN+F4, FN+F3 */ |
1863 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 1864 | } |
9b010de5 HMH |
1865 | } |
1866 | ||
01e88f25 HMH |
1867 | /* hotkey_source_mask *must* be zero for |
1868 | * the first hotkey_mask_get */ | |
b2c985e7 | 1869 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1870 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1871 | res = hotkey_mask_get(); |
1872 | hotkey_orig_mask = hotkey_mask; | |
1873 | if (!res) { | |
1874 | res = add_many_to_attr_set( | |
1875 | hotkey_dev_attributes, | |
1876 | hotkey_mask_attributes, | |
1877 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1878 | } | |
a0416420 | 1879 | } |
74941a69 | 1880 | |
01e88f25 HMH |
1881 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1882 | if (tp_features.hotkey_mask) { | |
1883 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
1884 | & ~hotkey_all_mask; | |
1885 | } else { | |
1886 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
1887 | } | |
1888 | ||
1889 | vdbg_printk(TPACPI_DBG_INIT, | |
1890 | "hotkey source mask 0x%08x, polling freq %d\n", | |
1891 | hotkey_source_mask, hotkey_poll_freq); | |
1892 | #endif | |
1893 | ||
74941a69 HMH |
1894 | /* Not all thinkpads have a hardware radio switch */ |
1895 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1896 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 1897 | printk(TPACPI_INFO |
74941a69 HMH |
1898 | "radio switch found; radios are %s\n", |
1899 | enabled(status, 0)); | |
1900 | res = add_to_attr_set(hotkey_dev_attributes, | |
1901 | &dev_attr_hotkey_radio_sw.attr); | |
1902 | } | |
1903 | ||
a0416420 HMH |
1904 | if (!res) |
1905 | res = register_attr_set_with_sysfs( | |
1906 | hotkey_dev_attributes, | |
1907 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1908 | if (res) |
1909 | return res; | |
6a38abbf | 1910 | |
edf0e0e5 HMH |
1911 | /* Set up key map */ |
1912 | ||
1913 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1914 | GFP_KERNEL); | |
1915 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
1916 | printk(TPACPI_ERR |
1917 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
1918 | return -ENOMEM; |
1919 | } | |
1920 | ||
1921 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1922 | dbg_printk(TPACPI_DBG_INIT, | |
1923 | "using Lenovo default hot key map\n"); | |
1924 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1925 | TPACPI_HOTKEY_MAP_SIZE); | |
1926 | } else { | |
1927 | dbg_printk(TPACPI_DBG_INIT, | |
1928 | "using IBM default hot key map\n"); | |
1929 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1930 | TPACPI_HOTKEY_MAP_SIZE); | |
1931 | } | |
1932 | ||
6a38abbf HMH |
1933 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1934 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1935 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1936 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1937 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1938 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1939 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1940 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1941 | set_bit(hotkey_keycode_map[i], | |
1942 | tpacpi_inputdev->keybit); | |
1943 | } else { | |
1944 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1945 | hotkey_reserved_mask |= 1 << i; | |
1946 | } | |
1947 | } | |
1948 | ||
5c29d58f HMH |
1949 | if (tp_features.hotkey_wlsw) { |
1950 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1951 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1952 | } | |
1953 | ||
1a343760 HMH |
1954 | dbg_printk(TPACPI_DBG_INIT, |
1955 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
1956 | res = hotkey_status_set(1); |
1957 | if (res) | |
1958 | return res; | |
01e88f25 HMH |
1959 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
1960 | & ~hotkey_reserved_mask) | |
1a343760 | 1961 | | hotkey_orig_mask); |
01e88f25 | 1962 | if (res < 0 && res != -ENXIO) |
1a343760 | 1963 | return res; |
ff80f137 HMH |
1964 | |
1965 | dbg_printk(TPACPI_DBG_INIT, | |
1966 | "legacy hot key reporting over procfs %s\n", | |
1967 | (hotkey_report_mode < 2) ? | |
1968 | "enabled" : "disabled"); | |
01e88f25 HMH |
1969 | |
1970 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1971 | tpacpi_inputdev->open = &hotkey_inputdev_open; | |
1972 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
1973 | ||
1974 | hotkey_poll_setup_safe(1); | |
1975 | #endif | |
56b6aeb0 HMH |
1976 | } |
1977 | ||
d8fd94d9 | 1978 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1979 | } |
1980 | ||
1981 | static void hotkey_exit(void) | |
1982 | { | |
01e88f25 HMH |
1983 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1984 | hotkey_poll_stop_sync(); | |
1985 | #endif | |
1986 | ||
d8fd94d9 | 1987 | if (tp_features.hotkey) { |
35ff8b9f HMH |
1988 | dbg_printk(TPACPI_DBG_EXIT, |
1989 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
1990 | /* no short-circuit boolean operator below! */ |
1991 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
1992 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
1993 | printk(TPACPI_ERR |
1994 | "failed to restore hot key mask " | |
1995 | "to BIOS defaults\n"); | |
5fba344c | 1996 | } |
a0416420 HMH |
1997 | |
1998 | if (hotkey_dev_attributes) { | |
1999 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2000 | hotkey_dev_attributes = NULL; | |
2001 | } | |
56b6aeb0 HMH |
2002 | } |
2003 | ||
2004 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2005 | { | |
6a38abbf | 2006 | u32 hkey; |
b7c8c200 | 2007 | unsigned int scancode; |
3eea123d | 2008 | int send_acpi_ev; |
3e5ce914 | 2009 | int ignore_acpi_ev; |
3b64b51d | 2010 | int unk_ev; |
3eea123d HMH |
2011 | |
2012 | if (event != 0x80) { | |
35ff8b9f HMH |
2013 | printk(TPACPI_ERR |
2014 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2015 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2016 | acpi_bus_generate_netlink_event( |
2017 | ibm->acpi->device->pnp.device_class, | |
2018 | ibm->acpi->device->dev.bus_id, | |
2019 | event, 0); | |
3eea123d HMH |
2020 | return; |
2021 | } | |
2022 | ||
2023 | while (1) { | |
2024 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2025 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2026 | return; |
2027 | } | |
2028 | ||
2029 | if (hkey == 0) { | |
2030 | /* queue empty */ | |
2031 | return; | |
2032 | } | |
2033 | ||
3b64b51d | 2034 | send_acpi_ev = 1; |
3e5ce914 | 2035 | ignore_acpi_ev = 0; |
3b64b51d | 2036 | unk_ev = 0; |
56b6aeb0 | 2037 | |
ff80f137 HMH |
2038 | switch (hkey >> 12) { |
2039 | case 1: | |
2040 | /* 0x1000-0x1FFF: key presses */ | |
2041 | scancode = hkey & 0xfff; | |
2042 | if (scancode > 0 && scancode < 0x21) { | |
2043 | scancode--; | |
01e88f25 HMH |
2044 | if (!(hotkey_source_mask & (1 << scancode))) { |
2045 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2046 | send_acpi_ev = 0; |
01e88f25 HMH |
2047 | } else { |
2048 | ignore_acpi_ev = 1; | |
2049 | } | |
ff80f137 | 2050 | } else { |
3b64b51d | 2051 | unk_ev = 1; |
ff80f137 HMH |
2052 | } |
2053 | break; | |
2054 | case 5: | |
3b64b51d HMH |
2055 | /* 0x5000-0x5FFF: On screen display helpers */ |
2056 | switch (hkey) { | |
2057 | case 0x5010: | |
2058 | /* Lenovo Vista BIOS: brightness changed */ | |
2059 | break; | |
2060 | case 0x5001: | |
2061 | case 0x5002: | |
2062 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2063 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2064 | break; |
2065 | default: | |
2066 | unk_ev = 1; | |
ff80f137 HMH |
2067 | } |
2068 | break; | |
2069 | case 7: | |
2070 | /* 0x7000-0x7FFF: misc */ | |
2071 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2072 | tpacpi_input_send_radiosw(); | |
3b64b51d | 2073 | send_acpi_ev = 0; |
6a38abbf | 2074 | break; |
6a38abbf | 2075 | } |
ff80f137 HMH |
2076 | /* fallthrough to default */ |
2077 | default: | |
2078 | /* case 2: dock-related */ | |
35ff8b9f HMH |
2079 | /* 0x2305 - T43 waking up due to bay lever |
2080 | * eject while aslept */ | |
ff80f137 | 2081 | /* case 3: ultra-bay related. maybe bay in dock? */ |
35ff8b9f HMH |
2082 | /* 0x3003 - T43 after wake up by bay lever |
2083 | * eject (0x2305) */ | |
3b64b51d HMH |
2084 | unk_ev = 1; |
2085 | } | |
2086 | if (unk_ev) { | |
35ff8b9f HMH |
2087 | printk(TPACPI_NOTICE |
2088 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2089 | } |
ff80f137 | 2090 | |
3eea123d | 2091 | /* Legacy events */ |
35ff8b9f HMH |
2092 | if (!ignore_acpi_ev && |
2093 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2094 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2095 | event, hkey); | |
3e5ce914 | 2096 | } |
ff80f137 | 2097 | |
3eea123d | 2098 | /* netlink events */ |
3e5ce914 | 2099 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2100 | acpi_bus_generate_netlink_event( |
2101 | ibm->acpi->device->pnp.device_class, | |
2102 | ibm->acpi->device->dev.bus_id, | |
2103 | event, hkey); | |
3eea123d | 2104 | } |
56b6aeb0 HMH |
2105 | } |
2106 | } | |
2107 | ||
5c29d58f HMH |
2108 | static void hotkey_resume(void) |
2109 | { | |
b2c985e7 | 2110 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2111 | printk(TPACPI_ERR |
2112 | "error while trying to read hot key mask " | |
2113 | "from firmware\n"); | |
5c29d58f | 2114 | tpacpi_input_send_radiosw(); |
01e88f25 HMH |
2115 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2116 | hotkey_poll_setup_safe(0); | |
2117 | #endif | |
5c29d58f HMH |
2118 | } |
2119 | ||
a0416420 | 2120 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2121 | static int hotkey_read(char *p) |
1da177e4 | 2122 | { |
ae92bd17 | 2123 | int res, status; |
1da177e4 LT |
2124 | int len = 0; |
2125 | ||
d8fd94d9 | 2126 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2127 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2128 | return len; | |
2129 | } | |
2130 | ||
fc589a3c HMH |
2131 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2132 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2133 | res = hotkey_status_get(&status); |
2134 | if (!res) | |
2135 | res = hotkey_mask_get(); | |
40ca9fdf | 2136 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2137 | if (res) |
2138 | return res; | |
1da177e4 LT |
2139 | |
2140 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2141 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2142 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2143 | len += sprintf(p + len, |
2144 | "commands:\tenable, disable, reset, <mask>\n"); | |
2145 | } else { | |
2146 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2147 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2148 | } | |
2149 | ||
2150 | return len; | |
2151 | } | |
2152 | ||
78f81cc4 | 2153 | static int hotkey_write(char *buf) |
1da177e4 | 2154 | { |
ae92bd17 HMH |
2155 | int res, status; |
2156 | u32 mask; | |
1da177e4 | 2157 | char *cmd; |
1da177e4 | 2158 | |
d8fd94d9 | 2159 | if (!tp_features.hotkey) |
1da177e4 LT |
2160 | return -ENODEV; |
2161 | ||
fc589a3c HMH |
2162 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2163 | return -ERESTARTSYS; | |
40ca9fdf | 2164 | |
b2c985e7 HMH |
2165 | status = -1; |
2166 | mask = hotkey_mask; | |
78f81cc4 | 2167 | |
40ca9fdf | 2168 | res = 0; |
1da177e4 LT |
2169 | while ((cmd = next_cmd(&buf))) { |
2170 | if (strlencmp(cmd, "enable") == 0) { | |
2171 | status = 1; | |
2172 | } else if (strlencmp(cmd, "disable") == 0) { | |
2173 | status = 0; | |
2174 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2175 | status = hotkey_orig_status; |
2176 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2177 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2178 | /* mask set */ | |
2179 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2180 | /* mask set */ | |
40ca9fdf HMH |
2181 | } else { |
2182 | res = -EINVAL; | |
2183 | goto errexit; | |
2184 | } | |
1da177e4 | 2185 | } |
b2c985e7 HMH |
2186 | if (status != -1) |
2187 | res = hotkey_status_set(status); | |
1da177e4 | 2188 | |
b2c985e7 HMH |
2189 | if (!res && mask != hotkey_mask) |
2190 | res = hotkey_mask_set(mask); | |
1da177e4 | 2191 | |
40ca9fdf HMH |
2192 | errexit: |
2193 | mutex_unlock(&hotkey_mutex); | |
2194 | return res; | |
78f81cc4 | 2195 | } |
1da177e4 | 2196 | |
1ba90e3a | 2197 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2198 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2199 | {"", 0}, |
2200 | }; | |
2201 | ||
8d376cd6 | 2202 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2203 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2204 | .notify = hotkey_notify, |
2205 | .handle = &hkey_handle, | |
2206 | .type = ACPI_DEVICE_NOTIFY, | |
2207 | }; | |
2208 | ||
a5763f22 HMH |
2209 | static struct ibm_struct hotkey_driver_data = { |
2210 | .name = "hotkey", | |
a5763f22 HMH |
2211 | .read = hotkey_read, |
2212 | .write = hotkey_write, | |
2213 | .exit = hotkey_exit, | |
5c29d58f | 2214 | .resume = hotkey_resume, |
8d376cd6 | 2215 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2216 | }; |
2217 | ||
56b6aeb0 HMH |
2218 | /************************************************************************* |
2219 | * Bluetooth subdriver | |
2220 | */ | |
1da177e4 | 2221 | |
f74a27d4 HMH |
2222 | enum { |
2223 | /* ACPI GBDC/SBDC bits */ | |
2224 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2225 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2226 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2227 | }; | |
2228 | ||
2229 | static int bluetooth_get_radiosw(void); | |
2230 | static int bluetooth_set_radiosw(int radio_on); | |
2231 | ||
d3a6ade4 HMH |
2232 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2233 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2234 | struct device_attribute *attr, | |
2235 | char *buf) | |
2236 | { | |
2237 | int status; | |
2238 | ||
2239 | status = bluetooth_get_radiosw(); | |
2240 | if (status < 0) | |
2241 | return status; | |
2242 | ||
2243 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2244 | } | |
2245 | ||
2246 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2247 | struct device_attribute *attr, | |
2248 | const char *buf, size_t count) | |
2249 | { | |
2250 | unsigned long t; | |
2251 | int res; | |
2252 | ||
2253 | if (parse_strtoul(buf, 1, &t)) | |
2254 | return -EINVAL; | |
2255 | ||
2256 | res = bluetooth_set_radiosw(t); | |
2257 | ||
2258 | return (res) ? res : count; | |
2259 | } | |
2260 | ||
2261 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2262 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2263 | bluetooth_enable_show, bluetooth_enable_store); |
2264 | ||
2265 | /* --------------------------------------------------------------------- */ | |
2266 | ||
2267 | static struct attribute *bluetooth_attributes[] = { | |
2268 | &dev_attr_bluetooth_enable.attr, | |
2269 | NULL | |
2270 | }; | |
2271 | ||
2272 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2273 | .attrs = bluetooth_attributes, |
2274 | }; | |
2275 | ||
a5763f22 | 2276 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2277 | { |
d3a6ade4 | 2278 | int res; |
d6fdd1e9 HMH |
2279 | int status = 0; |
2280 | ||
fe08bc4b HMH |
2281 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2282 | ||
e0c7dfe7 | 2283 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2284 | |
78f81cc4 BD |
2285 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2286 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2287 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2288 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2289 | ||
2290 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2291 | str_supported(tp_features.bluetooth), | |
2292 | status); | |
2293 | ||
d3a6ade4 HMH |
2294 | if (tp_features.bluetooth) { |
2295 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2296 | /* no bluetooth hardware present in system */ | |
2297 | tp_features.bluetooth = 0; | |
2298 | dbg_printk(TPACPI_DBG_INIT, | |
2299 | "bluetooth hardware not installed\n"); | |
2300 | } else { | |
2301 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2302 | &bluetooth_attr_group); | |
2303 | if (res) | |
2304 | return res; | |
2305 | } | |
d6fdd1e9 | 2306 | } |
fe08bc4b | 2307 | |
d8fd94d9 | 2308 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2309 | } |
2310 | ||
d3a6ade4 HMH |
2311 | static void bluetooth_exit(void) |
2312 | { | |
2313 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2314 | &bluetooth_attr_group); | |
2315 | } | |
2316 | ||
d6fdd1e9 | 2317 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2318 | { |
2319 | int status; | |
2320 | ||
d6fdd1e9 HMH |
2321 | if (!tp_features.bluetooth) |
2322 | return -ENODEV; | |
1da177e4 | 2323 | |
d6fdd1e9 HMH |
2324 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2325 | return -EIO; | |
2326 | ||
2327 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2328 | } | |
2329 | ||
2330 | static int bluetooth_set_radiosw(int radio_on) | |
2331 | { | |
2332 | int status; | |
2333 | ||
2334 | if (!tp_features.bluetooth) | |
2335 | return -ENODEV; | |
2336 | ||
2337 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2338 | return -EIO; | |
2339 | if (radio_on) | |
2340 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2341 | else | |
2342 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2343 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2344 | return -EIO; | |
2345 | ||
2346 | return 0; | |
1da177e4 LT |
2347 | } |
2348 | ||
d3a6ade4 | 2349 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2350 | static int bluetooth_read(char *p) |
1da177e4 LT |
2351 | { |
2352 | int len = 0; | |
d6fdd1e9 | 2353 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2354 | |
d8fd94d9 | 2355 | if (!tp_features.bluetooth) |
1da177e4 | 2356 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2357 | else { |
d6fdd1e9 HMH |
2358 | len += sprintf(p + len, "status:\t\t%s\n", |
2359 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2360 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2361 | } | |
2362 | ||
2363 | return len; | |
2364 | } | |
2365 | ||
78f81cc4 | 2366 | static int bluetooth_write(char *buf) |
1da177e4 | 2367 | { |
1da177e4 | 2368 | char *cmd; |
1da177e4 | 2369 | |
d8fd94d9 | 2370 | if (!tp_features.bluetooth) |
78f81cc4 | 2371 | return -ENODEV; |
1da177e4 LT |
2372 | |
2373 | while ((cmd = next_cmd(&buf))) { | |
2374 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2375 | bluetooth_set_radiosw(1); |
1da177e4 | 2376 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2377 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2378 | } else |
2379 | return -EINVAL; | |
1da177e4 LT |
2380 | } |
2381 | ||
1da177e4 LT |
2382 | return 0; |
2383 | } | |
2384 | ||
a5763f22 HMH |
2385 | static struct ibm_struct bluetooth_driver_data = { |
2386 | .name = "bluetooth", | |
2387 | .read = bluetooth_read, | |
2388 | .write = bluetooth_write, | |
d3a6ade4 | 2389 | .exit = bluetooth_exit, |
a5763f22 HMH |
2390 | }; |
2391 | ||
56b6aeb0 HMH |
2392 | /************************************************************************* |
2393 | * Wan subdriver | |
2394 | */ | |
2395 | ||
f74a27d4 HMH |
2396 | enum { |
2397 | /* ACPI GWAN/SWAN bits */ | |
2398 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2399 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2400 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2401 | }; | |
2402 | ||
2403 | static int wan_get_radiosw(void); | |
2404 | static int wan_set_radiosw(int radio_on); | |
2405 | ||
d3a6ade4 HMH |
2406 | /* sysfs wan enable ---------------------------------------------------- */ |
2407 | static ssize_t wan_enable_show(struct device *dev, | |
2408 | struct device_attribute *attr, | |
2409 | char *buf) | |
2410 | { | |
2411 | int status; | |
2412 | ||
2413 | status = wan_get_radiosw(); | |
2414 | if (status < 0) | |
2415 | return status; | |
2416 | ||
2417 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2418 | } | |
2419 | ||
2420 | static ssize_t wan_enable_store(struct device *dev, | |
2421 | struct device_attribute *attr, | |
2422 | const char *buf, size_t count) | |
2423 | { | |
2424 | unsigned long t; | |
2425 | int res; | |
2426 | ||
2427 | if (parse_strtoul(buf, 1, &t)) | |
2428 | return -EINVAL; | |
2429 | ||
2430 | res = wan_set_radiosw(t); | |
2431 | ||
2432 | return (res) ? res : count; | |
2433 | } | |
2434 | ||
2435 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2436 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2437 | wan_enable_show, wan_enable_store); |
2438 | ||
2439 | /* --------------------------------------------------------------------- */ | |
2440 | ||
2441 | static struct attribute *wan_attributes[] = { | |
2442 | &dev_attr_wan_enable.attr, | |
2443 | NULL | |
2444 | }; | |
2445 | ||
2446 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2447 | .attrs = wan_attributes, |
2448 | }; | |
2449 | ||
a5763f22 | 2450 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2451 | { |
d3a6ade4 | 2452 | int res; |
d6fdd1e9 HMH |
2453 | int status = 0; |
2454 | ||
fe08bc4b HMH |
2455 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2456 | ||
e0c7dfe7 | 2457 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2458 | |
d8fd94d9 | 2459 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2460 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2461 | ||
2462 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2463 | str_supported(tp_features.wan), | |
2464 | status); | |
2465 | ||
d3a6ade4 HMH |
2466 | if (tp_features.wan) { |
2467 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2468 | /* no wan hardware present in system */ | |
2469 | tp_features.wan = 0; | |
2470 | dbg_printk(TPACPI_DBG_INIT, | |
2471 | "wan hardware not installed\n"); | |
2472 | } else { | |
2473 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2474 | &wan_attr_group); | |
2475 | if (res) | |
2476 | return res; | |
2477 | } | |
d6fdd1e9 | 2478 | } |
fe08bc4b | 2479 | |
d8fd94d9 | 2480 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2481 | } |
2482 | ||
d3a6ade4 HMH |
2483 | static void wan_exit(void) |
2484 | { | |
2485 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2486 | &wan_attr_group); | |
2487 | } | |
2488 | ||
d6fdd1e9 | 2489 | static int wan_get_radiosw(void) |
42adb53c JF |
2490 | { |
2491 | int status; | |
2492 | ||
d6fdd1e9 HMH |
2493 | if (!tp_features.wan) |
2494 | return -ENODEV; | |
42adb53c | 2495 | |
d6fdd1e9 HMH |
2496 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2497 | return -EIO; | |
2498 | ||
2499 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2500 | } | |
2501 | ||
2502 | static int wan_set_radiosw(int radio_on) | |
2503 | { | |
2504 | int status; | |
2505 | ||
2506 | if (!tp_features.wan) | |
2507 | return -ENODEV; | |
2508 | ||
2509 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2510 | return -EIO; | |
2511 | if (radio_on) | |
2512 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2513 | else | |
2514 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2515 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2516 | return -EIO; | |
2517 | ||
2518 | return 0; | |
42adb53c JF |
2519 | } |
2520 | ||
d3a6ade4 | 2521 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2522 | static int wan_read(char *p) |
2523 | { | |
2524 | int len = 0; | |
d6fdd1e9 | 2525 | int status = wan_get_radiosw(); |
42adb53c | 2526 | |
d8fd94d9 | 2527 | if (!tp_features.wan) |
42adb53c | 2528 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2529 | else { |
d6fdd1e9 HMH |
2530 | len += sprintf(p + len, "status:\t\t%s\n", |
2531 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2532 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2533 | } | |
2534 | ||
2535 | return len; | |
2536 | } | |
2537 | ||
2538 | static int wan_write(char *buf) | |
2539 | { | |
42adb53c | 2540 | char *cmd; |
42adb53c | 2541 | |
d8fd94d9 | 2542 | if (!tp_features.wan) |
42adb53c JF |
2543 | return -ENODEV; |
2544 | ||
2545 | while ((cmd = next_cmd(&buf))) { | |
2546 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2547 | wan_set_radiosw(1); |
42adb53c | 2548 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2549 | wan_set_radiosw(0); |
42adb53c JF |
2550 | } else |
2551 | return -EINVAL; | |
42adb53c JF |
2552 | } |
2553 | ||
42adb53c JF |
2554 | return 0; |
2555 | } | |
2556 | ||
a5763f22 HMH |
2557 | static struct ibm_struct wan_driver_data = { |
2558 | .name = "wan", | |
2559 | .read = wan_read, | |
2560 | .write = wan_write, | |
d3a6ade4 | 2561 | .exit = wan_exit, |
92641177 | 2562 | .flags.experimental = 1, |
a5763f22 HMH |
2563 | }; |
2564 | ||
56b6aeb0 HMH |
2565 | /************************************************************************* |
2566 | * Video subdriver | |
2567 | */ | |
2568 | ||
f74a27d4 HMH |
2569 | enum video_access_mode { |
2570 | TPACPI_VIDEO_NONE = 0, | |
2571 | TPACPI_VIDEO_570, /* 570 */ | |
2572 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2573 | TPACPI_VIDEO_NEW, /* all others */ | |
2574 | }; | |
2575 | ||
2576 | enum { /* video status flags, based on VIDEO_570 */ | |
2577 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2578 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2579 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2580 | }; | |
2581 | ||
2582 | enum { /* TPACPI_VIDEO_570 constants */ | |
2583 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2584 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2585 | * video_status_flags */ | |
2586 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2587 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2588 | }; | |
2589 | ||
9a8e1738 HMH |
2590 | static enum video_access_mode video_supported; |
2591 | static int video_orig_autosw; | |
78f81cc4 | 2592 | |
f74a27d4 HMH |
2593 | static int video_autosw_get(void); |
2594 | static int video_autosw_set(int enable); | |
2595 | ||
e0c7dfe7 | 2596 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
56b6aeb0 HMH |
2597 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ |
2598 | "\\_SB.PCI0.VID0", /* 770e */ | |
2599 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
2600 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
2601 | ); /* R30, R31 */ | |
2602 | ||
e0c7dfe7 | 2603 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2604 | |
a5763f22 | 2605 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2606 | { |
78f81cc4 BD |
2607 | int ivga; |
2608 | ||
fe08bc4b HMH |
2609 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2610 | ||
e0c7dfe7 HMH |
2611 | TPACPI_ACPIHANDLE_INIT(vid); |
2612 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2613 | |
78f81cc4 BD |
2614 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2615 | /* G41, assume IVGA doesn't change */ | |
2616 | vid_handle = vid2_handle; | |
2617 | ||
2618 | if (!vid_handle) | |
2619 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2620 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2621 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2622 | /* 570 */ | |
efa27145 | 2623 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2624 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2625 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2626 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2627 | else |
2628 | /* all others */ | |
efa27145 | 2629 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2630 | |
fe08bc4b HMH |
2631 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2632 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2633 | video_supported); | |
2634 | ||
5fba344c | 2635 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2636 | } |
2637 | ||
56b6aeb0 HMH |
2638 | static void video_exit(void) |
2639 | { | |
83f34724 HMH |
2640 | dbg_printk(TPACPI_DBG_EXIT, |
2641 | "restoring original video autoswitch mode\n"); | |
2642 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2643 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2644 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2645 | } |
2646 | ||
83f34724 | 2647 | static int video_outputsw_get(void) |
1da177e4 LT |
2648 | { |
2649 | int status = 0; | |
2650 | int i; | |
2651 | ||
83f34724 HMH |
2652 | switch (video_supported) { |
2653 | case TPACPI_VIDEO_570: | |
2654 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2655 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2656 | return -EIO; | |
2657 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2658 | break; | |
2659 | case TPACPI_VIDEO_770: | |
2660 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2661 | return -EIO; | |
2662 | if (i) | |
2663 | status |= TP_ACPI_VIDEO_S_LCD; | |
2664 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2665 | return -EIO; | |
2666 | if (i) | |
2667 | status |= TP_ACPI_VIDEO_S_CRT; | |
2668 | break; | |
2669 | case TPACPI_VIDEO_NEW: | |
2670 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2671 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2672 | return -EIO; | |
2673 | if (i) | |
2674 | status |= TP_ACPI_VIDEO_S_CRT; | |
2675 | ||
2676 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2677 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2678 | return -EIO; | |
2679 | if (i) | |
2680 | status |= TP_ACPI_VIDEO_S_LCD; | |
2681 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2682 | return -EIO; | |
2683 | if (i) | |
2684 | status |= TP_ACPI_VIDEO_S_DVI; | |
2685 | break; | |
2686 | default: | |
2687 | return -ENOSYS; | |
78f81cc4 BD |
2688 | } |
2689 | ||
2690 | return status; | |
2691 | } | |
1da177e4 | 2692 | |
83f34724 | 2693 | static int video_outputsw_set(int status) |
78f81cc4 | 2694 | { |
83f34724 HMH |
2695 | int autosw; |
2696 | int res = 0; | |
2697 | ||
2698 | switch (video_supported) { | |
2699 | case TPACPI_VIDEO_570: | |
2700 | res = acpi_evalf(NULL, NULL, | |
2701 | "\\_SB.PHS2", "vdd", | |
2702 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2703 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
2704 | break; | |
2705 | case TPACPI_VIDEO_770: | |
2706 | autosw = video_autosw_get(); | |
2707 | if (autosw < 0) | |
2708 | return autosw; | |
1da177e4 | 2709 | |
83f34724 HMH |
2710 | res = video_autosw_set(1); |
2711 | if (res) | |
2712 | return res; | |
2713 | res = acpi_evalf(vid_handle, NULL, | |
2714 | "ASWT", "vdd", status * 0x100, 0); | |
2715 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
2716 | printk(TPACPI_ERR |
2717 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
2718 | return -EIO; |
2719 | } | |
2720 | break; | |
2721 | case TPACPI_VIDEO_NEW: | |
2722 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 2723 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
2724 | break; |
2725 | default: | |
2726 | return -ENOSYS; | |
2727 | } | |
1da177e4 | 2728 | |
83f34724 | 2729 | return (res)? 0 : -EIO; |
1da177e4 LT |
2730 | } |
2731 | ||
83f34724 | 2732 | static int video_autosw_get(void) |
78f81cc4 | 2733 | { |
83f34724 | 2734 | int autosw = 0; |
78f81cc4 | 2735 | |
83f34724 HMH |
2736 | switch (video_supported) { |
2737 | case TPACPI_VIDEO_570: | |
2738 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
2739 | return -EIO; | |
2740 | break; | |
2741 | case TPACPI_VIDEO_770: | |
2742 | case TPACPI_VIDEO_NEW: | |
2743 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2744 | return -EIO; | |
2745 | break; | |
2746 | default: | |
2747 | return -ENOSYS; | |
2748 | } | |
78f81cc4 | 2749 | |
83f34724 | 2750 | return autosw & 1; |
78f81cc4 BD |
2751 | } |
2752 | ||
83f34724 | 2753 | static int video_autosw_set(int enable) |
78f81cc4 | 2754 | { |
83f34724 HMH |
2755 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2756 | return -EIO; | |
2757 | return 0; | |
78f81cc4 BD |
2758 | } |
2759 | ||
83f34724 | 2760 | static int video_outputsw_cycle(void) |
78f81cc4 | 2761 | { |
83f34724 HMH |
2762 | int autosw = video_autosw_get(); |
2763 | int res; | |
78f81cc4 | 2764 | |
83f34724 HMH |
2765 | if (autosw < 0) |
2766 | return autosw; | |
78f81cc4 | 2767 | |
83f34724 HMH |
2768 | switch (video_supported) { |
2769 | case TPACPI_VIDEO_570: | |
2770 | res = video_autosw_set(1); | |
2771 | if (res) | |
2772 | return res; | |
2773 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2774 | break; | |
2775 | case TPACPI_VIDEO_770: | |
2776 | case TPACPI_VIDEO_NEW: | |
2777 | res = video_autosw_set(1); | |
2778 | if (res) | |
2779 | return res; | |
2780 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2781 | break; | |
2782 | default: | |
2783 | return -ENOSYS; | |
2784 | } | |
2785 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
2786 | printk(TPACPI_ERR |
2787 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 2788 | return -EIO; |
78f81cc4 BD |
2789 | } |
2790 | ||
83f34724 HMH |
2791 | return (res)? 0 : -EIO; |
2792 | } | |
2793 | ||
2794 | static int video_expand_toggle(void) | |
2795 | { | |
2796 | switch (video_supported) { | |
2797 | case TPACPI_VIDEO_570: | |
2798 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2799 | 0 : -EIO; | |
2800 | case TPACPI_VIDEO_770: | |
2801 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2802 | 0 : -EIO; | |
2803 | case TPACPI_VIDEO_NEW: | |
2804 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2805 | 0 : -EIO; | |
2806 | default: | |
2807 | return -ENOSYS; | |
2808 | } | |
2809 | /* not reached */ | |
78f81cc4 BD |
2810 | } |
2811 | ||
56b6aeb0 HMH |
2812 | static int video_read(char *p) |
2813 | { | |
83f34724 | 2814 | int status, autosw; |
56b6aeb0 HMH |
2815 | int len = 0; |
2816 | ||
83f34724 | 2817 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
2818 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2819 | return len; | |
2820 | } | |
2821 | ||
83f34724 HMH |
2822 | status = video_outputsw_get(); |
2823 | if (status < 0) | |
2824 | return status; | |
2825 | ||
2826 | autosw = video_autosw_get(); | |
2827 | if (autosw < 0) | |
2828 | return autosw; | |
2829 | ||
56b6aeb0 HMH |
2830 | len += sprintf(p + len, "status:\t\tsupported\n"); |
2831 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
2832 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 2833 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2834 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
2835 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
2836 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
2837 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 2838 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2839 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
2840 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
2841 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
2842 | ||
2843 | return len; | |
2844 | } | |
2845 | ||
78f81cc4 | 2846 | static int video_write(char *buf) |
1da177e4 LT |
2847 | { |
2848 | char *cmd; | |
2849 | int enable, disable, status; | |
83f34724 | 2850 | int res; |
1da177e4 | 2851 | |
83f34724 | 2852 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
2853 | return -ENODEV; |
2854 | ||
83f34724 HMH |
2855 | enable = 0; |
2856 | disable = 0; | |
1da177e4 LT |
2857 | |
2858 | while ((cmd = next_cmd(&buf))) { | |
2859 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 2860 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2861 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2862 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2863 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2864 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2865 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2866 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2867 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2868 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2869 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2870 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2871 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2872 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2873 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2874 | res = video_autosw_set(1); |
2875 | if (res) | |
2876 | return res; | |
1da177e4 | 2877 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2878 | res = video_autosw_set(0); |
2879 | if (res) | |
2880 | return res; | |
1da177e4 | 2881 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2882 | res = video_outputsw_cycle(); |
2883 | if (res) | |
2884 | return res; | |
1da177e4 | 2885 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2886 | res = video_expand_toggle(); |
2887 | if (res) | |
2888 | return res; | |
1da177e4 LT |
2889 | } else |
2890 | return -EINVAL; | |
2891 | } | |
2892 | ||
2893 | if (enable || disable) { | |
83f34724 HMH |
2894 | status = video_outputsw_get(); |
2895 | if (status < 0) | |
2896 | return status; | |
2897 | res = video_outputsw_set((status & ~disable) | enable); | |
2898 | if (res) | |
2899 | return res; | |
1da177e4 LT |
2900 | } |
2901 | ||
2902 | return 0; | |
2903 | } | |
2904 | ||
a5763f22 HMH |
2905 | static struct ibm_struct video_driver_data = { |
2906 | .name = "video", | |
2907 | .read = video_read, | |
2908 | .write = video_write, | |
2909 | .exit = video_exit, | |
2910 | }; | |
2911 | ||
56b6aeb0 HMH |
2912 | /************************************************************************* |
2913 | * Light (thinklight) subdriver | |
2914 | */ | |
1da177e4 | 2915 | |
e0c7dfe7 HMH |
2916 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2917 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 2918 | |
a5763f22 | 2919 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2920 | { |
fe08bc4b HMH |
2921 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2922 | ||
e0c7dfe7 HMH |
2923 | TPACPI_ACPIHANDLE_INIT(ledb); |
2924 | TPACPI_ACPIHANDLE_INIT(lght); | |
2925 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2926 | |
78f81cc4 | 2927 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2928 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2929 | |
d8fd94d9 | 2930 | if (tp_features.light) |
78f81cc4 BD |
2931 | /* light status not supported on |
2932 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2933 | tp_features.light_status = |
2934 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2935 | |
fe08bc4b | 2936 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2937 | str_supported(tp_features.light)); |
fe08bc4b | 2938 | |
d8fd94d9 | 2939 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2940 | } |
2941 | ||
78f81cc4 | 2942 | static int light_read(char *p) |
1da177e4 LT |
2943 | { |
2944 | int len = 0; | |
2945 | int status = 0; | |
2946 | ||
d8fd94d9 | 2947 | if (!tp_features.light) { |
78f81cc4 | 2948 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2949 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2950 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2951 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2952 | } else { | |
1da177e4 LT |
2953 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2954 | return -EIO; | |
2955 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2956 | len += sprintf(p + len, "commands:\ton, off\n"); |
2957 | } | |
1da177e4 LT |
2958 | |
2959 | return len; | |
2960 | } | |
2961 | ||
78f81cc4 | 2962 | static int light_write(char *buf) |
1da177e4 LT |
2963 | { |
2964 | int cmos_cmd, lght_cmd; | |
2965 | char *cmd; | |
2966 | int success; | |
78f81cc4 | 2967 | |
d8fd94d9 | 2968 | if (!tp_features.light) |
78f81cc4 BD |
2969 | return -ENODEV; |
2970 | ||
1da177e4 LT |
2971 | while ((cmd = next_cmd(&buf))) { |
2972 | if (strlencmp(cmd, "on") == 0) { | |
2973 | cmos_cmd = 0x0c; | |
2974 | lght_cmd = 1; | |
2975 | } else if (strlencmp(cmd, "off") == 0) { | |
2976 | cmos_cmd = 0x0d; | |
2977 | lght_cmd = 0; | |
2978 | } else | |
2979 | return -EINVAL; | |
78f81cc4 | 2980 | |
1da177e4 | 2981 | success = cmos_handle ? |
78f81cc4 BD |
2982 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2983 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2984 | if (!success) |
2985 | return -EIO; | |
2986 | } | |
2987 | ||
2988 | return 0; | |
2989 | } | |
2990 | ||
a5763f22 HMH |
2991 | static struct ibm_struct light_driver_data = { |
2992 | .name = "light", | |
2993 | .read = light_read, | |
2994 | .write = light_write, | |
2995 | }; | |
2996 | ||
56b6aeb0 HMH |
2997 | /************************************************************************* |
2998 | * Dock subdriver | |
2999 | */ | |
1da177e4 | 3000 | |
85998248 | 3001 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3002 | |
f74a27d4 HMH |
3003 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3004 | static int dock_read(char *p); | |
3005 | static int dock_write(char *buf); | |
3006 | ||
e0c7dfe7 | 3007 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3008 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3009 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3010 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3011 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3012 | ||
5fba344c | 3013 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3014 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3015 | |
1ba90e3a TR |
3016 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3017 | {PCI_ROOT_HID_STRING, 0}, | |
3018 | {"", 0}, | |
3019 | }; | |
3020 | ||
d94a7f16 HMH |
3021 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3022 | { | |
3023 | .notify = dock_notify, | |
3024 | .handle = &dock_handle, | |
3025 | .type = ACPI_SYSTEM_NOTIFY, | |
3026 | }, | |
3027 | { | |
996fba08 HMH |
3028 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3029 | * We just use it to get notifications of dock hotplug | |
3030 | * in very old thinkpads */ | |
1ba90e3a | 3031 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3032 | .notify = dock_notify, |
3033 | .handle = &pci_handle, | |
3034 | .type = ACPI_SYSTEM_NOTIFY, | |
3035 | }, | |
3036 | }; | |
3037 | ||
3038 | static struct ibm_struct dock_driver_data[2] = { | |
3039 | { | |
3040 | .name = "dock", | |
3041 | .read = dock_read, | |
3042 | .write = dock_write, | |
3043 | .acpi = &ibm_dock_acpidriver[0], | |
3044 | }, | |
3045 | { | |
3046 | .name = "dock", | |
3047 | .acpi = &ibm_dock_acpidriver[1], | |
3048 | }, | |
3049 | }; | |
3050 | ||
1da177e4 LT |
3051 | #define dock_docked() (_sta(dock_handle) & 1) |
3052 | ||
a5763f22 | 3053 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3054 | { |
fe08bc4b HMH |
3055 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3056 | ||
e0c7dfe7 | 3057 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3058 | |
fe08bc4b HMH |
3059 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3060 | str_supported(dock_handle != NULL)); | |
3061 | ||
5fba344c HMH |
3062 | return (dock_handle)? 0 : 1; |
3063 | } | |
3064 | ||
d94a7f16 HMH |
3065 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3066 | { | |
3067 | int dock2_needed; | |
3068 | ||
3069 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3070 | ||
3071 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3072 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3073 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3074 | dock2_needed = (pci_handle != NULL); |
3075 | vdbg_printk(TPACPI_DBG_INIT, | |
3076 | "dock PCI handler for the TP 570 is %s\n", | |
3077 | str_supported(dock2_needed)); | |
3078 | } else { | |
3079 | vdbg_printk(TPACPI_DBG_INIT, | |
3080 | "dock subdriver part 2 not required\n"); | |
3081 | dock2_needed = 0; | |
3082 | } | |
3083 | ||
3084 | return (dock2_needed)? 0 : 1; | |
3085 | } | |
3086 | ||
56b6aeb0 HMH |
3087 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3088 | { | |
3089 | int docked = dock_docked(); | |
1ba90e3a TR |
3090 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3091 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3092 | int data; |
56b6aeb0 HMH |
3093 | |
3094 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3095 | data = 1; /* button */ |
56b6aeb0 | 3096 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3097 | data = 3; /* dock */ |
56b6aeb0 | 3098 | else if (event == 3 && docked) |
962ce8ca | 3099 | data = 1; /* button */ |
56b6aeb0 | 3100 | else if (event == 3 && !docked) |
962ce8ca | 3101 | data = 2; /* undock */ |
56b6aeb0 | 3102 | else if (event == 0 && docked) |
962ce8ca | 3103 | data = 3; /* dock */ |
56b6aeb0 | 3104 | else { |
e0c7dfe7 | 3105 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3106 | event, _sta(dock_handle)); |
962ce8ca | 3107 | data = 0; /* unknown */ |
56b6aeb0 | 3108 | } |
14e04fb3 | 3109 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3110 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3111 | ibm->acpi->device->dev.bus_id, | |
3112 | event, data); | |
56b6aeb0 HMH |
3113 | } |
3114 | ||
78f81cc4 | 3115 | static int dock_read(char *p) |
1da177e4 LT |
3116 | { |
3117 | int len = 0; | |
3118 | int docked = dock_docked(); | |
3119 | ||
3120 | if (!dock_handle) | |
3121 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3122 | else if (!docked) | |
3123 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3124 | else { | |
3125 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3126 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3127 | } | |
3128 | ||
3129 | return len; | |
3130 | } | |
3131 | ||
78f81cc4 | 3132 | static int dock_write(char *buf) |
1da177e4 LT |
3133 | { |
3134 | char *cmd; | |
3135 | ||
3136 | if (!dock_docked()) | |
78f81cc4 | 3137 | return -ENODEV; |
1da177e4 LT |
3138 | |
3139 | while ((cmd = next_cmd(&buf))) { | |
3140 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3141 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3142 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3143 | return -EIO; |
3144 | } else if (strlencmp(cmd, "dock") == 0) { | |
3145 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3146 | return -EIO; | |
3147 | } else | |
3148 | return -EINVAL; | |
1da177e4 | 3149 | } |
56b6aeb0 HMH |
3150 | |
3151 | return 0; | |
1da177e4 | 3152 | } |
56b6aeb0 | 3153 | |
85998248 | 3154 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3155 | |
3156 | /************************************************************************* | |
3157 | * Bay subdriver | |
3158 | */ | |
1da177e4 | 3159 | |
85998248 | 3160 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3161 | |
e0c7dfe7 | 3162 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3163 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3164 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3165 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3166 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3167 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3168 | "_EJ0", /* all others */ |
3169 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3170 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3171 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3172 | ); /* all others */ | |
e0c7dfe7 | 3173 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3174 | "_EJ0", /* 770x */ |
3175 | ); /* all others */ | |
3176 | ||
a5763f22 | 3177 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3178 | { |
fe08bc4b HMH |
3179 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3180 | ||
e0c7dfe7 | 3181 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3182 | if (bay_handle) |
e0c7dfe7 HMH |
3183 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3184 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3185 | if (bay2_handle) |
e0c7dfe7 | 3186 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3187 | |
d8fd94d9 HMH |
3188 | tp_features.bay_status = bay_handle && |
3189 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3190 | tp_features.bay_status2 = bay2_handle && | |
3191 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3192 | |
d8fd94d9 HMH |
3193 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3194 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3195 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3196 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3197 | |
fe08bc4b HMH |
3198 | vdbg_printk(TPACPI_DBG_INIT, |
3199 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3200 | str_supported(tp_features.bay_status), |
3201 | str_supported(tp_features.bay_eject), | |
3202 | str_supported(tp_features.bay_status2), | |
3203 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3204 | |
d8fd94d9 HMH |
3205 | return (tp_features.bay_status || tp_features.bay_eject || |
3206 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3207 | } |
3208 | ||
56b6aeb0 HMH |
3209 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3210 | { | |
14e04fb3 | 3211 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3212 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3213 | ibm->acpi->device->dev.bus_id, | |
3214 | event, 0); | |
56b6aeb0 HMH |
3215 | } |
3216 | ||
78f81cc4 BD |
3217 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3218 | ||
3219 | static int bay_read(char *p) | |
1da177e4 LT |
3220 | { |
3221 | int len = 0; | |
78f81cc4 BD |
3222 | int occupied = bay_occupied(bay); |
3223 | int occupied2 = bay_occupied(bay2); | |
3224 | int eject, eject2; | |
3225 | ||
d8fd94d9 HMH |
3226 | len += sprintf(p + len, "status:\t\t%s\n", |
3227 | tp_features.bay_status ? | |
3228 | (occupied ? "occupied" : "unoccupied") : | |
3229 | "not supported"); | |
3230 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3231 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3232 | "occupied" : "unoccupied"); | |
3233 | ||
d8fd94d9 HMH |
3234 | eject = tp_features.bay_eject && occupied; |
3235 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3236 | |
3237 | if (eject && eject2) | |
3238 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3239 | else if (eject) | |
1da177e4 | 3240 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3241 | else if (eject2) |
3242 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3243 | |
3244 | return len; | |
3245 | } | |
3246 | ||
78f81cc4 | 3247 | static int bay_write(char *buf) |
1da177e4 LT |
3248 | { |
3249 | char *cmd; | |
3250 | ||
d8fd94d9 | 3251 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3252 | return -ENODEV; |
3253 | ||
1da177e4 | 3254 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3255 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3256 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3257 | return -EIO; | |
d8fd94d9 | 3258 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3259 | strlencmp(cmd, "eject2") == 0) { |
3260 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3261 | return -EIO; |
3262 | } else | |
3263 | return -EINVAL; | |
3264 | } | |
3265 | ||
3266 | return 0; | |
78f81cc4 | 3267 | } |
a5763f22 | 3268 | |
8d376cd6 HMH |
3269 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3270 | .notify = bay_notify, | |
3271 | .handle = &bay_handle, | |
3272 | .type = ACPI_SYSTEM_NOTIFY, | |
3273 | }; | |
3274 | ||
a5763f22 HMH |
3275 | static struct ibm_struct bay_driver_data = { |
3276 | .name = "bay", | |
3277 | .read = bay_read, | |
3278 | .write = bay_write, | |
8d376cd6 | 3279 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3280 | }; |
3281 | ||
85998248 | 3282 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3283 | |
56b6aeb0 HMH |
3284 | /************************************************************************* |
3285 | * CMOS subdriver | |
3286 | */ | |
3287 | ||
b616004c HMH |
3288 | /* sysfs cmos_command -------------------------------------------------- */ |
3289 | static ssize_t cmos_command_store(struct device *dev, | |
3290 | struct device_attribute *attr, | |
3291 | const char *buf, size_t count) | |
3292 | { | |
3293 | unsigned long cmos_cmd; | |
3294 | int res; | |
3295 | ||
3296 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3297 | return -EINVAL; | |
3298 | ||
3299 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3300 | return (res)? res : count; | |
3301 | } | |
3302 | ||
3303 | static struct device_attribute dev_attr_cmos_command = | |
3304 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3305 | ||
3306 | /* --------------------------------------------------------------------- */ | |
3307 | ||
a5763f22 | 3308 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3309 | { |
b616004c HMH |
3310 | int res; |
3311 | ||
fe08bc4b HMH |
3312 | vdbg_printk(TPACPI_DBG_INIT, |
3313 | "initializing cmos commands subdriver\n"); | |
3314 | ||
e0c7dfe7 | 3315 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3316 | |
fe08bc4b HMH |
3317 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3318 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3319 | |
3320 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3321 | if (res) | |
3322 | return res; | |
3323 | ||
5fba344c HMH |
3324 | return (cmos_handle)? 0 : 1; |
3325 | } | |
3326 | ||
b616004c HMH |
3327 | static void cmos_exit(void) |
3328 | { | |
3329 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3330 | } | |
3331 | ||
78f81cc4 | 3332 | static int cmos_read(char *p) |
1da177e4 LT |
3333 | { |
3334 | int len = 0; | |
3335 | ||
78f81cc4 BD |
3336 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3337 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3338 | if (!cmos_handle) |
3339 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3340 | else { | |
3341 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3342 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3343 | } |
3344 | ||
3345 | return len; | |
3346 | } | |
3347 | ||
78f81cc4 | 3348 | static int cmos_write(char *buf) |
1da177e4 LT |
3349 | { |
3350 | char *cmd; | |
c9bea99c | 3351 | int cmos_cmd, res; |
1da177e4 LT |
3352 | |
3353 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3354 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3355 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3356 | /* cmos_cmd set */ |
3357 | } else | |
3358 | return -EINVAL; | |
3359 | ||
c9bea99c HMH |
3360 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3361 | if (res) | |
3362 | return res; | |
1da177e4 LT |
3363 | } |
3364 | ||
3365 | return 0; | |
78f81cc4 BD |
3366 | } |
3367 | ||
a5763f22 HMH |
3368 | static struct ibm_struct cmos_driver_data = { |
3369 | .name = "cmos", | |
3370 | .read = cmos_read, | |
3371 | .write = cmos_write, | |
b616004c | 3372 | .exit = cmos_exit, |
a5763f22 | 3373 | }; |
56b6aeb0 HMH |
3374 | |
3375 | /************************************************************************* | |
3376 | * LED subdriver | |
3377 | */ | |
3378 | ||
f74a27d4 HMH |
3379 | enum led_access_mode { |
3380 | TPACPI_LED_NONE = 0, | |
3381 | TPACPI_LED_570, /* 570 */ | |
3382 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3383 | TPACPI_LED_NEW, /* all others */ | |
3384 | }; | |
3385 | ||
3386 | enum { /* For TPACPI_LED_OLD */ | |
3387 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3388 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3389 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3390 | }; | |
3391 | ||
9a8e1738 | 3392 | static enum led_access_mode led_supported; |
78f81cc4 | 3393 | |
e0c7dfe7 | 3394 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3395 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3396 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3397 | "LED", /* all others */ |
3398 | ); /* R30, R31 */ | |
3399 | ||
a5763f22 | 3400 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3401 | { |
fe08bc4b HMH |
3402 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3403 | ||
e0c7dfe7 | 3404 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3405 | |
78f81cc4 BD |
3406 | if (!led_handle) |
3407 | /* led not supported on R30, R31 */ | |
efa27145 | 3408 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3409 | else if (strlencmp(led_path, "SLED") == 0) |
3410 | /* 570 */ | |
efa27145 | 3411 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3412 | else if (strlencmp(led_path, "SYSL") == 0) |
3413 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3414 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3415 | else |
3416 | /* all others */ | |
efa27145 | 3417 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3418 | |
fe08bc4b HMH |
3419 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3420 | str_supported(led_supported), led_supported); | |
3421 | ||
5fba344c | 3422 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3423 | } |
3424 | ||
3425 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3426 | ||
3427 | static int led_read(char *p) | |
1da177e4 LT |
3428 | { |
3429 | int len = 0; | |
3430 | ||
78f81cc4 BD |
3431 | if (!led_supported) { |
3432 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3433 | return len; | |
3434 | } | |
3435 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3436 | ||
efa27145 | 3437 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3438 | /* 570 */ |
3439 | int i, status; | |
3440 | for (i = 0; i < 8; i++) { | |
3441 | if (!acpi_evalf(ec_handle, | |
3442 | &status, "GLED", "dd", 1 << i)) | |
3443 | return -EIO; | |
3444 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3445 | i, led_status(status)); | |
3446 | } | |
3447 | } | |
3448 | ||
1da177e4 | 3449 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3450 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3451 | |
3452 | return len; | |
3453 | } | |
3454 | ||
78f81cc4 BD |
3455 | /* off, on, blink */ |
3456 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3457 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3458 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3459 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3460 | ||
78f81cc4 | 3461 | static int led_write(char *buf) |
1da177e4 LT |
3462 | { |
3463 | char *cmd; | |
78f81cc4 BD |
3464 | int led, ind, ret; |
3465 | ||
3466 | if (!led_supported) | |
3467 | return -ENODEV; | |
1da177e4 LT |
3468 | |
3469 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3470 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3471 | return -EINVAL; |
3472 | ||
78f81cc4 BD |
3473 | if (strstr(cmd, "off")) { |
3474 | ind = 0; | |
1da177e4 | 3475 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3476 | ind = 1; |
3477 | } else if (strstr(cmd, "blink")) { | |
3478 | ind = 2; | |
1da177e4 LT |
3479 | } else |
3480 | return -EINVAL; | |
78f81cc4 | 3481 | |
efa27145 | 3482 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3483 | /* 570 */ |
3484 | led = 1 << led; | |
1da177e4 | 3485 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3486 | led, led_sled_arg1[ind])) |
1da177e4 | 3487 | return -EIO; |
efa27145 | 3488 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3489 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3490 | led = 1 << led; | |
efa27145 | 3491 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 | 3492 | if (ret >= 0) |
35ff8b9f HMH |
3493 | ret = ec_write(TPACPI_LED_EC_HLBL, |
3494 | led * led_exp_hlbl[ind]); | |
78f81cc4 | 3495 | if (ret >= 0) |
35ff8b9f HMH |
3496 | ret = ec_write(TPACPI_LED_EC_HLCL, |
3497 | led * led_exp_hlcl[ind]); | |
78f81cc4 BD |
3498 | if (ret < 0) |
3499 | return ret; | |
3500 | } else { | |
3501 | /* all others */ | |
3502 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3503 | led, led_led_arg1[ind])) | |
1da177e4 | 3504 | return -EIO; |
78f81cc4 BD |
3505 | } |
3506 | } | |
3507 | ||
3508 | return 0; | |
3509 | } | |
3510 | ||
a5763f22 HMH |
3511 | static struct ibm_struct led_driver_data = { |
3512 | .name = "led", | |
3513 | .read = led_read, | |
3514 | .write = led_write, | |
3515 | }; | |
3516 | ||
56b6aeb0 HMH |
3517 | /************************************************************************* |
3518 | * Beep subdriver | |
3519 | */ | |
3520 | ||
e0c7dfe7 | 3521 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3522 | |
a5763f22 | 3523 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3524 | { |
fe08bc4b HMH |
3525 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3526 | ||
e0c7dfe7 | 3527 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3528 | |
fe08bc4b HMH |
3529 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3530 | str_supported(beep_handle != NULL)); | |
3531 | ||
5fba344c HMH |
3532 | return (beep_handle)? 0 : 1; |
3533 | } | |
3534 | ||
78f81cc4 BD |
3535 | static int beep_read(char *p) |
3536 | { | |
3537 | int len = 0; | |
3538 | ||
3539 | if (!beep_handle) | |
3540 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3541 | else { | |
3542 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3543 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3544 | } | |
3545 | ||
3546 | return len; | |
3547 | } | |
3548 | ||
3549 | static int beep_write(char *buf) | |
3550 | { | |
3551 | char *cmd; | |
3552 | int beep_cmd; | |
3553 | ||
3554 | if (!beep_handle) | |
3555 | return -ENODEV; | |
3556 | ||
3557 | while ((cmd = next_cmd(&buf))) { | |
3558 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3559 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3560 | /* beep_cmd set */ | |
3561 | } else | |
3562 | return -EINVAL; | |
3563 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3564 | return -EIO; | |
3565 | } | |
3566 | ||
3567 | return 0; | |
3568 | } | |
3569 | ||
a5763f22 HMH |
3570 | static struct ibm_struct beep_driver_data = { |
3571 | .name = "beep", | |
3572 | .read = beep_read, | |
3573 | .write = beep_write, | |
3574 | }; | |
3575 | ||
56b6aeb0 HMH |
3576 | /************************************************************************* |
3577 | * Thermal subdriver | |
3578 | */ | |
78f81cc4 | 3579 | |
f74a27d4 HMH |
3580 | enum thermal_access_mode { |
3581 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3582 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3583 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3584 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3585 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3586 | }; | |
3587 | ||
3588 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3589 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3590 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3591 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3592 | }; | |
3593 | ||
3594 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3595 | struct ibm_thermal_sensors_struct { | |
3596 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3597 | }; | |
3598 | ||
a26f878a | 3599 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3600 | |
b21a15f6 HMH |
3601 | /* idx is zero-based */ |
3602 | static int thermal_get_sensor(int idx, s32 *value) | |
3603 | { | |
3604 | int t; | |
3605 | s8 tmp; | |
3606 | char tmpi[5]; | |
3607 | ||
3608 | t = TP_EC_THERMAL_TMP0; | |
3609 | ||
3610 | switch (thermal_read_mode) { | |
3611 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3612 | case TPACPI_THERMAL_TPEC_16: | |
3613 | if (idx >= 8 && idx <= 15) { | |
3614 | t = TP_EC_THERMAL_TMP8; | |
3615 | idx -= 8; | |
3616 | } | |
3617 | /* fallthrough */ | |
3618 | #endif | |
3619 | case TPACPI_THERMAL_TPEC_8: | |
3620 | if (idx <= 7) { | |
3621 | if (!acpi_ec_read(t + idx, &tmp)) | |
3622 | return -EIO; | |
3623 | *value = tmp * 1000; | |
3624 | return 0; | |
3625 | } | |
3626 | break; | |
3627 | ||
3628 | case TPACPI_THERMAL_ACPI_UPDT: | |
3629 | if (idx <= 7) { | |
3630 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3631 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3632 | return -EIO; | |
3633 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3634 | return -EIO; | |
3635 | *value = (t - 2732) * 100; | |
3636 | return 0; | |
3637 | } | |
3638 | break; | |
3639 | ||
3640 | case TPACPI_THERMAL_ACPI_TMP07: | |
3641 | if (idx <= 7) { | |
3642 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3643 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3644 | return -EIO; | |
3645 | if (t > 127 || t < -127) | |
3646 | t = TP_EC_THERMAL_TMP_NA; | |
3647 | *value = t * 1000; | |
3648 | return 0; | |
3649 | } | |
3650 | break; | |
3651 | ||
3652 | case TPACPI_THERMAL_NONE: | |
3653 | default: | |
3654 | return -ENOSYS; | |
3655 | } | |
3656 | ||
3657 | return -EINVAL; | |
3658 | } | |
3659 | ||
3660 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3661 | { | |
3662 | int res, i; | |
3663 | int n; | |
3664 | ||
3665 | n = 8; | |
3666 | i = 0; | |
3667 | ||
3668 | if (!s) | |
3669 | return -EINVAL; | |
3670 | ||
3671 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3672 | n = 16; | |
3673 | ||
35ff8b9f | 3674 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
3675 | res = thermal_get_sensor(i, &s->temp[i]); |
3676 | if (res) | |
3677 | return res; | |
3678 | } | |
3679 | ||
3680 | return n; | |
3681 | } | |
f74a27d4 | 3682 | |
2c37aa4e HMH |
3683 | /* sysfs temp##_input -------------------------------------------------- */ |
3684 | ||
3685 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3686 | struct device_attribute *attr, | |
3687 | char *buf) | |
3688 | { | |
3689 | struct sensor_device_attribute *sensor_attr = | |
3690 | to_sensor_dev_attr(attr); | |
3691 | int idx = sensor_attr->index; | |
3692 | s32 value; | |
3693 | int res; | |
3694 | ||
3695 | res = thermal_get_sensor(idx, &value); | |
3696 | if (res) | |
3697 | return res; | |
3698 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3699 | return -ENXIO; | |
3700 | ||
3701 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3702 | } | |
3703 | ||
3704 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
3705 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
3706 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
3707 | |
3708 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3709 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3710 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3711 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3712 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3713 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3714 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3715 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3716 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3717 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3718 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3719 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3720 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3721 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3722 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3723 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3724 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3725 | }; | |
3726 | ||
3727 | #define THERMAL_ATTRS(X) \ | |
3728 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3729 | ||
3730 | static struct attribute *thermal_temp_input_attr[] = { | |
3731 | THERMAL_ATTRS(8), | |
3732 | THERMAL_ATTRS(9), | |
3733 | THERMAL_ATTRS(10), | |
3734 | THERMAL_ATTRS(11), | |
3735 | THERMAL_ATTRS(12), | |
3736 | THERMAL_ATTRS(13), | |
3737 | THERMAL_ATTRS(14), | |
3738 | THERMAL_ATTRS(15), | |
3739 | THERMAL_ATTRS(0), | |
3740 | THERMAL_ATTRS(1), | |
3741 | THERMAL_ATTRS(2), | |
3742 | THERMAL_ATTRS(3), | |
3743 | THERMAL_ATTRS(4), | |
3744 | THERMAL_ATTRS(5), | |
3745 | THERMAL_ATTRS(6), | |
3746 | THERMAL_ATTRS(7), | |
3747 | NULL | |
3748 | }; | |
3749 | ||
3750 | static const struct attribute_group thermal_temp_input16_group = { | |
3751 | .attrs = thermal_temp_input_attr | |
3752 | }; | |
3753 | ||
3754 | static const struct attribute_group thermal_temp_input8_group = { | |
3755 | .attrs = &thermal_temp_input_attr[8] | |
3756 | }; | |
3757 | ||
3758 | #undef THERMAL_SENSOR_ATTR_TEMP | |
3759 | #undef THERMAL_ATTRS | |
3760 | ||
3761 | /* --------------------------------------------------------------------- */ | |
3762 | ||
a5763f22 | 3763 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3764 | { |
60eb0b35 HMH |
3765 | u8 t, ta1, ta2; |
3766 | int i; | |
5fba344c | 3767 | int acpi_tmp7; |
2c37aa4e | 3768 | int res; |
5fba344c | 3769 | |
fe08bc4b HMH |
3770 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
3771 | ||
5fba344c | 3772 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 3773 | |
3d6f99ca | 3774 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
3775 | /* |
3776 | * Direct EC access mode: sensors at registers | |
3777 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
3778 | * non-implemented, thermal sensors return 0x80 when | |
3779 | * not available | |
3780 | */ | |
78f81cc4 | 3781 | |
60eb0b35 HMH |
3782 | ta1 = ta2 = 0; |
3783 | for (i = 0; i < 8; i++) { | |
04cc862c | 3784 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
3785 | ta1 |= t; |
3786 | } else { | |
3787 | ta1 = 0; | |
3788 | break; | |
3789 | } | |
04cc862c | 3790 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
3791 | ta2 |= t; |
3792 | } else { | |
3793 | ta1 = 0; | |
3794 | break; | |
3795 | } | |
3796 | } | |
3797 | if (ta1 == 0) { | |
3798 | /* This is sheer paranoia, but we handle it anyway */ | |
3799 | if (acpi_tmp7) { | |
e0c7dfe7 | 3800 | printk(TPACPI_ERR |
60eb0b35 | 3801 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
3802 | "falling back to ACPI TMPx access " |
3803 | "mode\n"); | |
efa27145 | 3804 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 3805 | } else { |
e0c7dfe7 | 3806 | printk(TPACPI_ERR |
60eb0b35 HMH |
3807 | "ThinkPad ACPI EC access misbehaving, " |
3808 | "disabling thermal sensors access\n"); | |
efa27145 | 3809 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
3810 | } |
3811 | } else { | |
3812 | thermal_read_mode = | |
3813 | (ta2 != 0) ? | |
efa27145 | 3814 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
3815 | } |
3816 | } else if (acpi_tmp7) { | |
a26f878a HMH |
3817 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
3818 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3819 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
3820 | } else { |
3821 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 3822 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
3823 | } |
3824 | } else { | |
3825 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 3826 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 3827 | } |
78f81cc4 | 3828 | |
fe08bc4b HMH |
3829 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
3830 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
3831 | thermal_read_mode); | |
3832 | ||
35ff8b9f | 3833 | switch (thermal_read_mode) { |
2c37aa4e | 3834 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 3835 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3836 | &thermal_temp_input16_group); |
3837 | if (res) | |
3838 | return res; | |
3839 | break; | |
3840 | case TPACPI_THERMAL_TPEC_8: | |
3841 | case TPACPI_THERMAL_ACPI_TMP07: | |
3842 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3843 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3844 | &thermal_temp_input8_group); |
3845 | if (res) | |
3846 | return res; | |
3847 | break; | |
3848 | case TPACPI_THERMAL_NONE: | |
3849 | default: | |
3850 | return 1; | |
3851 | } | |
3852 | ||
3853 | return 0; | |
3854 | } | |
3855 | ||
3856 | static void thermal_exit(void) | |
3857 | { | |
35ff8b9f | 3858 | switch (thermal_read_mode) { |
2c37aa4e | 3859 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 3860 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3861 | &thermal_temp_input16_group); |
3862 | break; | |
3863 | case TPACPI_THERMAL_TPEC_8: | |
3864 | case TPACPI_THERMAL_ACPI_TMP07: | |
3865 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3866 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3867 | &thermal_temp_input16_group); |
3868 | break; | |
3869 | case TPACPI_THERMAL_NONE: | |
3870 | default: | |
3871 | break; | |
3872 | } | |
78f81cc4 BD |
3873 | } |
3874 | ||
a26f878a HMH |
3875 | static int thermal_read(char *p) |
3876 | { | |
3877 | int len = 0; | |
3878 | int n, i; | |
3879 | struct ibm_thermal_sensors_struct t; | |
3880 | ||
3881 | n = thermal_get_sensors(&t); | |
3882 | if (unlikely(n < 0)) | |
3883 | return n; | |
3884 | ||
3885 | len += sprintf(p + len, "temperatures:\t"); | |
3886 | ||
3887 | if (n > 0) { | |
3888 | for (i = 0; i < (n - 1); i++) | |
3889 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
3890 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
3891 | } else | |
3892 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
3893 | |
3894 | return len; | |
3895 | } | |
3896 | ||
a5763f22 HMH |
3897 | static struct ibm_struct thermal_driver_data = { |
3898 | .name = "thermal", | |
3899 | .read = thermal_read, | |
2c37aa4e | 3900 | .exit = thermal_exit, |
a5763f22 HMH |
3901 | }; |
3902 | ||
56b6aeb0 HMH |
3903 | /************************************************************************* |
3904 | * EC Dump subdriver | |
3905 | */ | |
3906 | ||
78f81cc4 BD |
3907 | static u8 ecdump_regs[256]; |
3908 | ||
3909 | static int ecdump_read(char *p) | |
3910 | { | |
3911 | int len = 0; | |
3912 | int i, j; | |
3913 | u8 v; | |
3914 | ||
3915 | len += sprintf(p + len, "EC " | |
3916 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3917 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3918 | for (i = 0; i < 256; i += 16) { | |
3919 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3920 | for (j = 0; j < 16; j++) { | |
3921 | if (!acpi_ec_read(i + j, &v)) | |
3922 | break; | |
3923 | if (v != ecdump_regs[i + j]) | |
3924 | len += sprintf(p + len, " *%02x", v); | |
3925 | else | |
3926 | len += sprintf(p + len, " %02x", v); | |
3927 | ecdump_regs[i + j] = v; | |
3928 | } | |
3929 | len += sprintf(p + len, "\n"); | |
3930 | if (j != 16) | |
3931 | break; | |
3932 | } | |
3933 | ||
3934 | /* These are way too dangerous to advertise openly... */ | |
3935 | #if 0 | |
3936 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3937 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3938 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3939 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3940 | #endif | |
3941 | return len; | |
3942 | } | |
3943 | ||
3944 | static int ecdump_write(char *buf) | |
3945 | { | |
3946 | char *cmd; | |
3947 | int i, v; | |
3948 | ||
3949 | while ((cmd = next_cmd(&buf))) { | |
3950 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3951 | /* i and v set */ | |
3952 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3953 | /* i and v set */ | |
3954 | } else | |
3955 | return -EINVAL; | |
3956 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3957 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3958 | return -EIO; |
3959 | } else | |
3960 | return -EINVAL; | |
3961 | } | |
3962 | ||
3963 | return 0; | |
78f81cc4 BD |
3964 | } |
3965 | ||
a5763f22 HMH |
3966 | static struct ibm_struct ecdump_driver_data = { |
3967 | .name = "ecdump", | |
3968 | .read = ecdump_read, | |
3969 | .write = ecdump_write, | |
92641177 | 3970 | .flags.experimental = 1, |
a5763f22 HMH |
3971 | }; |
3972 | ||
56b6aeb0 HMH |
3973 | /************************************************************************* |
3974 | * Backlight/brightness subdriver | |
3975 | */ | |
3976 | ||
f74a27d4 HMH |
3977 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
3978 | ||
94954cc6 | 3979 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
3980 | static int brightness_offset = 0x31; |
3981 | static int brightness_mode; | |
3982 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
3983 | ||
b21a15f6 | 3984 | static struct mutex brightness_mutex; |
56b6aeb0 | 3985 | |
b21a15f6 HMH |
3986 | /* |
3987 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3988 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3989 | */ | |
3990 | static int brightness_get(struct backlight_device *bd) | |
3991 | { | |
3992 | u8 lec = 0, lcmos = 0, level = 0; | |
3993 | ||
3994 | if (brightness_mode & 1) { | |
3995 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3996 | return -EIO; | |
3997 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
3998 | level = lec; | |
3999 | }; | |
4000 | if (brightness_mode & 2) { | |
4001 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4002 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4003 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4004 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4005 | level = lcmos; | |
4006 | } | |
4007 | ||
4008 | if (brightness_mode == 3 && lec != lcmos) { | |
e0c7dfe7 | 4009 | printk(TPACPI_ERR |
b21a15f6 HMH |
4010 | "CMOS NVRAM (%u) and EC (%u) do not agree " |
4011 | "on display brightness level\n", | |
4012 | (unsigned int) lcmos, | |
4013 | (unsigned int) lec); | |
4014 | return -EIO; | |
4015 | } | |
4016 | ||
4017 | return level; | |
4018 | } | |
4019 | ||
4020 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4021 | static int brightness_set(int value) | |
4022 | { | |
4023 | int cmos_cmd, inc, i, res; | |
4024 | int current_value; | |
4025 | ||
4026 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4027 | return -EINVAL; | |
4028 | ||
4029 | res = mutex_lock_interruptible(&brightness_mutex); | |
4030 | if (res < 0) | |
4031 | return res; | |
4032 | ||
4033 | current_value = brightness_get(NULL); | |
4034 | if (current_value < 0) { | |
4035 | res = current_value; | |
4036 | goto errout; | |
4037 | } | |
4038 | ||
4039 | cmos_cmd = value > current_value ? | |
4040 | TP_CMOS_BRIGHTNESS_UP : | |
4041 | TP_CMOS_BRIGHTNESS_DOWN; | |
4042 | inc = (value > current_value)? 1 : -1; | |
4043 | ||
4044 | res = 0; | |
4045 | for (i = current_value; i != value; i += inc) { | |
4046 | if ((brightness_mode & 2) && | |
4047 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4048 | res = -EIO; | |
4049 | goto errout; | |
4050 | } | |
4051 | if ((brightness_mode & 1) && | |
4052 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4053 | res = -EIO; | |
4054 | goto errout;; | |
4055 | } | |
4056 | } | |
4057 | ||
4058 | errout: | |
4059 | mutex_unlock(&brightness_mutex); | |
4060 | return res; | |
4061 | } | |
4062 | ||
4063 | /* sysfs backlight class ----------------------------------------------- */ | |
4064 | ||
4065 | static int brightness_update_status(struct backlight_device *bd) | |
4066 | { | |
4067 | /* it is the backlight class's job (caller) to handle | |
4068 | * EINTR and other errors properly */ | |
4069 | return brightness_set( | |
4070 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4071 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4072 | bd->props.brightness : 0); | |
4073 | } | |
4074 | ||
4075 | static struct backlight_ops ibm_backlight_data = { | |
35ff8b9f HMH |
4076 | .get_brightness = brightness_get, |
4077 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4078 | }; |
4079 | ||
b21a15f6 | 4080 | /* --------------------------------------------------------------------- */ |
f432255e | 4081 | |
a3f104c0 HMH |
4082 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4083 | { | |
4084 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4085 | union acpi_object *obj; | |
4086 | int rc; | |
4087 | ||
4088 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4089 | obj = (union acpi_object *)buffer.pointer; | |
4090 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
e0c7dfe7 HMH |
4091 | printk(TPACPI_ERR "Unknown BCLL data, " |
4092 | "please report this to %s\n", TPACPI_MAIL); | |
a3f104c0 HMH |
4093 | rc = 0; |
4094 | } else { | |
4095 | rc = obj->package.count; | |
4096 | } | |
4097 | } else { | |
4098 | return 0; | |
4099 | } | |
4100 | ||
4101 | kfree(buffer.pointer); | |
4102 | return rc; | |
4103 | } | |
4104 | ||
4105 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4106 | void *context, void **rv) | |
4107 | { | |
4108 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4109 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4110 | ||
4111 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4112 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4113 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4114 | *rv = handle; | |
4115 | return AE_CTRL_TERMINATE; | |
4116 | } else { | |
4117 | return AE_OK; | |
4118 | } | |
4119 | } else { | |
4120 | return AE_OK; | |
4121 | } | |
4122 | } | |
4123 | ||
4124 | static int __init brightness_check_levels(void) | |
4125 | { | |
4126 | int status; | |
4127 | void *found_node = NULL; | |
4128 | ||
4129 | if (!vid_handle) { | |
e0c7dfe7 | 4130 | TPACPI_ACPIHANDLE_INIT(vid); |
a3f104c0 HMH |
4131 | } |
4132 | if (!vid_handle) | |
4133 | return 0; | |
4134 | ||
4135 | /* Search for a BCLL package with 16 levels */ | |
4136 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
35ff8b9f HMH |
4137 | brightness_find_bcll, NULL, |
4138 | &found_node); | |
a3f104c0 HMH |
4139 | |
4140 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4141 | } | |
4142 | ||
e11e211a HMH |
4143 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4144 | void *context, void **rv) | |
4145 | { | |
4146 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4147 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4148 | ||
4149 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4150 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4151 | *rv = handle; | |
4152 | return AE_CTRL_TERMINATE; | |
4153 | } else { | |
4154 | return AE_OK; | |
4155 | } | |
4156 | } | |
4157 | ||
4158 | static int __init brightness_check_std_acpi_support(void) | |
4159 | { | |
4160 | int status; | |
4161 | void *found_node = NULL; | |
4162 | ||
4163 | if (!vid_handle) { | |
e0c7dfe7 | 4164 | TPACPI_ACPIHANDLE_INIT(vid); |
e11e211a HMH |
4165 | } |
4166 | if (!vid_handle) | |
4167 | return 0; | |
4168 | ||
4169 | /* Search for a _BCL method, but don't execute it */ | |
4170 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
35ff8b9f | 4171 | brightness_find_bcl, NULL, &found_node); |
e11e211a HMH |
4172 | |
4173 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4174 | } | |
4175 | ||
a5763f22 | 4176 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4177 | { |
4178 | int b; | |
4179 | ||
fe08bc4b HMH |
4180 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4181 | ||
f432255e HMH |
4182 | mutex_init(&brightness_mutex); |
4183 | ||
87cc537a HMH |
4184 | if (!brightness_enable) { |
4185 | dbg_printk(TPACPI_DBG_INIT, | |
35ff8b9f HMH |
4186 | "brightness support disabled by " |
4187 | "module parameter\n"); | |
87cc537a | 4188 | return 1; |
e11e211a HMH |
4189 | } else if (brightness_enable > 1) { |
4190 | if (brightness_check_std_acpi_support()) { | |
e0c7dfe7 | 4191 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4192 | "standard ACPI backlight interface " |
4193 | "available, not loading native one...\n"); | |
e11e211a HMH |
4194 | return 1; |
4195 | } | |
87cc537a HMH |
4196 | } |
4197 | ||
24d3b774 HMH |
4198 | if (!brightness_mode) { |
4199 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4200 | brightness_mode = 2; | |
4201 | else | |
4202 | brightness_mode = 3; | |
4203 | ||
4204 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4205 | brightness_mode); | |
4206 | } | |
4207 | ||
4208 | if (brightness_mode > 3) | |
4209 | return -EINVAL; | |
4210 | ||
a3f104c0 HMH |
4211 | tp_features.bright_16levels = |
4212 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4213 | brightness_check_levels(); | |
4214 | ||
56b6aeb0 HMH |
4215 | b = brightness_get(NULL); |
4216 | if (b < 0) | |
24d3b774 | 4217 | return 1; |
56b6aeb0 | 4218 | |
a3f104c0 | 4219 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4220 | printk(TPACPI_INFO |
4221 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4222 | |
7d5a015e HMH |
4223 | ibm_backlight_device = backlight_device_register( |
4224 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4225 | &ibm_backlight_data); | |
56b6aeb0 | 4226 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4227 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4228 | return PTR_ERR(ibm_backlight_device); |
4229 | } | |
fe08bc4b | 4230 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4231 | |
a3f104c0 HMH |
4232 | ibm_backlight_device->props.max_brightness = |
4233 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4234 | ibm_backlight_device->props.brightness = b; |
4235 | backlight_update_status(ibm_backlight_device); | |
4236 | ||
4237 | return 0; | |
4238 | } | |
4239 | ||
4240 | static void brightness_exit(void) | |
4241 | { | |
4242 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4243 | vdbg_printk(TPACPI_DBG_EXIT, |
4244 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4245 | backlight_device_unregister(ibm_backlight_device); |
4246 | ibm_backlight_device = NULL; | |
4247 | } | |
4248 | } | |
4249 | ||
56b6aeb0 HMH |
4250 | static int brightness_read(char *p) |
4251 | { | |
4252 | int len = 0; | |
4253 | int level; | |
4254 | ||
35ff8b9f HMH |
4255 | level = brightness_get(NULL); |
4256 | if (level < 0) { | |
56b6aeb0 HMH |
4257 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4258 | } else { | |
a3f104c0 | 4259 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4260 | len += sprintf(p + len, "commands:\tup, down\n"); |
4261 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4262 | " (<level> is 0-%d)\n", |
4263 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4264 | } |
4265 | ||
4266 | return len; | |
4267 | } | |
4268 | ||
8acb0250 HM |
4269 | static int brightness_write(char *buf) |
4270 | { | |
4271 | int level; | |
4273af8d | 4272 | int rc; |
1da177e4 | 4273 | char *cmd; |
a3f104c0 | 4274 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4275 | |
4273af8d HMH |
4276 | level = brightness_get(NULL); |
4277 | if (level < 0) | |
4278 | return level; | |
78f81cc4 | 4279 | |
4273af8d | 4280 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4281 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4282 | if (level < max_level) |
4283 | level++; | |
78f81cc4 | 4284 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4285 | if (level > 0) |
4286 | level--; | |
4287 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4288 | level >= 0 && level <= max_level) { | |
4289 | /* new level set */ | |
78f81cc4 BD |
4290 | } else |
4291 | return -EINVAL; | |
78f81cc4 BD |
4292 | } |
4293 | ||
4273af8d HMH |
4294 | /* |
4295 | * Now we know what the final level should be, so we try to set it. | |
4296 | * Doing it this way makes the syscall restartable in case of EINTR | |
4297 | */ | |
4298 | rc = brightness_set(level); | |
4299 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4300 | } |
4301 | ||
a5763f22 HMH |
4302 | static struct ibm_struct brightness_driver_data = { |
4303 | .name = "brightness", | |
4304 | .read = brightness_read, | |
4305 | .write = brightness_write, | |
4306 | .exit = brightness_exit, | |
4307 | }; | |
4308 | ||
56b6aeb0 HMH |
4309 | /************************************************************************* |
4310 | * Volume subdriver | |
4311 | */ | |
fb87a811 | 4312 | |
f74a27d4 HMH |
4313 | static int volume_offset = 0x30; |
4314 | ||
78f81cc4 BD |
4315 | static int volume_read(char *p) |
4316 | { | |
4317 | int len = 0; | |
4318 | u8 level; | |
4319 | ||
4320 | if (!acpi_ec_read(volume_offset, &level)) { | |
4321 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4322 | } else { | |
4323 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4324 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4325 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4326 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4327 | " (<level> is 0-15)\n"); | |
4328 | } | |
4329 | ||
4330 | return len; | |
4331 | } | |
4332 | ||
78f81cc4 BD |
4333 | static int volume_write(char *buf) |
4334 | { | |
4335 | int cmos_cmd, inc, i; | |
4336 | u8 level, mute; | |
4337 | int new_level, new_mute; | |
4338 | char *cmd; | |
4339 | ||
4340 | while ((cmd = next_cmd(&buf))) { | |
4341 | if (!acpi_ec_read(volume_offset, &level)) | |
4342 | return -EIO; | |
4343 | new_mute = mute = level & 0x40; | |
4344 | new_level = level = level & 0xf; | |
4345 | ||
4346 | if (strlencmp(cmd, "up") == 0) { | |
4347 | if (mute) | |
4348 | new_mute = 0; | |
4349 | else | |
4350 | new_level = level == 15 ? 15 : level + 1; | |
4351 | } else if (strlencmp(cmd, "down") == 0) { | |
4352 | if (mute) | |
4353 | new_mute = 0; | |
4354 | else | |
4355 | new_level = level == 0 ? 0 : level - 1; | |
4356 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4357 | new_level >= 0 && new_level <= 15) { | |
4358 | /* new_level set */ | |
4359 | } else if (strlencmp(cmd, "mute") == 0) { | |
4360 | new_mute = 0x40; | |
1da177e4 LT |
4361 | } else |
4362 | return -EINVAL; | |
4363 | ||
35ff8b9f HMH |
4364 | if (new_level != level) { |
4365 | /* mute doesn't change */ | |
4366 | ||
4367 | cmos_cmd = (new_level > level) ? | |
4368 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4369 | inc = new_level > level ? 1 : -1; |
4370 | ||
c9bea99c | 4371 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4372 | !acpi_ec_write(volume_offset, level))) |
4373 | return -EIO; | |
4374 | ||
4375 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4376 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4377 | !acpi_ec_write(volume_offset, i + inc)) |
4378 | return -EIO; | |
4379 | ||
35ff8b9f HMH |
4380 | if (mute && |
4381 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4382 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4383 | return -EIO; |
35ff8b9f | 4384 | } |
78f81cc4 BD |
4385 | } |
4386 | ||
35ff8b9f HMH |
4387 | if (new_mute != mute) { |
4388 | /* level doesn't change */ | |
4389 | ||
4390 | cmos_cmd = (new_mute) ? | |
4391 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4392 | |
c9bea99c | 4393 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4394 | !acpi_ec_write(volume_offset, level + new_mute)) |
4395 | return -EIO; | |
4396 | } | |
4397 | } | |
4398 | ||
4399 | return 0; | |
4400 | } | |
4401 | ||
a5763f22 HMH |
4402 | static struct ibm_struct volume_driver_data = { |
4403 | .name = "volume", | |
4404 | .read = volume_read, | |
4405 | .write = volume_write, | |
4406 | }; | |
56b6aeb0 HMH |
4407 | |
4408 | /************************************************************************* | |
4409 | * Fan subdriver | |
4410 | */ | |
4411 | ||
4412 | /* | |
4413 | * FAN ACCESS MODES | |
4414 | * | |
efa27145 | 4415 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4416 | * ACPI GFAN method: returns fan level |
4417 | * | |
efa27145 | 4418 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4419 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4420 | * |
efa27145 | 4421 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4422 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4423 | * | |
f51d1a39 HMH |
4424 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4425 | * it for writing. | |
56b6aeb0 | 4426 | * |
efa27145 | 4427 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4428 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4429 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4430 | * |
4431 | * Fan speed changes of any sort (including those caused by the | |
4432 | * disengaged mode) are usually done slowly by the firmware as the | |
4433 | * maximum ammount of fan duty cycle change per second seems to be | |
4434 | * limited. | |
4435 | * | |
4436 | * Reading is not available if GFAN exists. | |
4437 | * Writing is not available if SFAN exists. | |
4438 | * | |
4439 | * Bits | |
4440 | * 7 automatic mode engaged; | |
4441 | * (default operation mode of the ThinkPad) | |
4442 | * fan level is ignored in this mode. | |
f51d1a39 | 4443 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4444 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4445 | * the tachometer while the fan controller ramps up |
4446 | * the speed (which can take up to a few *minutes*). | |
4447 | * Speeds up fan to 100% duty-cycle, which is far above | |
4448 | * the standard RPM levels. It is not impossible that | |
4449 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4450 | * 5-3 unused in some models. Extra bits for fan level |
4451 | * in others, but still useless as all values above | |
4452 | * 7 map to the same speed as level 7 in these models. | |
4453 | * 2-0 fan level (0..7 usually) | |
4454 | * 0x00 = stop | |
4455 | * 0x07 = max (set when temperatures critical) | |
4456 | * Some ThinkPads may have other levels, see | |
efa27145 | 4457 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4458 | * |
4459 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4460 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4461 | * does so, its initial value is meaningless (0x07). | |
4462 | * | |
4463 | * For firmware bugs, refer to: | |
4464 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4465 | * | |
4466 | * ---- | |
4467 | * | |
4468 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4469 | * Main fan tachometer reading (in RPM) | |
4470 | * | |
4471 | * This register is present on all ThinkPads with a new-style EC, and | |
4472 | * it is known not to be present on the A21m/e, and T22, as there is | |
4473 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4474 | * ThinkPads from this same time period (and earlier) probably lack the | |
4475 | * tachometer as well. | |
4476 | * | |
4477 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4478 | * was never fixed by IBM to report the EC firmware version string | |
4479 | * probably support the tachometer (like the early X models), so | |
4480 | * detecting it is quite hard. We need more data to know for sure. | |
4481 | * | |
4482 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4483 | * might result. | |
4484 | * | |
f51d1a39 HMH |
4485 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4486 | * mode. | |
56b6aeb0 HMH |
4487 | * |
4488 | * For firmware bugs, refer to: | |
4489 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4490 | * | |
efa27145 | 4491 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4492 | * ThinkPad X31, X40, X41. Not available in the X60. |
4493 | * | |
4494 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4495 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4496 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4497 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4498 | * | |
4499 | * The speeds are stored on handles | |
4500 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4501 | * | |
4502 | * There are three default speed sets, acessible as handles: | |
4503 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4504 | * | |
4505 | * ACPI DSDT switches which set is in use depending on various | |
4506 | * factors. | |
4507 | * | |
efa27145 | 4508 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4509 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4510 | * but the ACPI tables just mention level 7. | |
4511 | */ | |
4512 | ||
f74a27d4 HMH |
4513 | enum { /* Fan control constants */ |
4514 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4515 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4516 | * 0x84 must be read before 0x85 */ | |
4517 | ||
4518 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4519 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4520 | ||
4521 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4522 | }; | |
4523 | ||
4524 | enum fan_status_access_mode { | |
4525 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4526 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4527 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4528 | }; | |
4529 | ||
4530 | enum fan_control_access_mode { | |
4531 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4532 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4533 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4534 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4535 | }; | |
4536 | ||
4537 | enum fan_control_commands { | |
4538 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4539 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4540 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4541 | * and also watchdog cmd */ | |
4542 | }; | |
4543 | ||
4544 | static int fan_control_allowed; | |
4545 | ||
69ba91cb HMH |
4546 | static enum fan_status_access_mode fan_status_access_mode; |
4547 | static enum fan_control_access_mode fan_control_access_mode; | |
4548 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4549 | |
778b4d74 | 4550 | static u8 fan_control_initial_status; |
fe98a52c | 4551 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4552 | static int fan_watchdog_maxinterval; |
4553 | ||
4554 | static struct mutex fan_mutex; | |
778b4d74 | 4555 | |
25c68a33 | 4556 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4557 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4558 | |
e0c7dfe7 HMH |
4559 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4560 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4561 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4562 | ); /* all others */ | |
e0c7dfe7 | 4563 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4564 | "JFNS", /* 770x-JL */ |
4565 | ); /* all others */ | |
4566 | ||
fe98a52c | 4567 | /* |
b21a15f6 | 4568 | * Call with fan_mutex held |
fe98a52c | 4569 | */ |
b21a15f6 | 4570 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4571 | { |
b21a15f6 HMH |
4572 | if ((status & |
4573 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4574 | if (status > 7) | |
4575 | fan_control_desired_level = 7; | |
4576 | else | |
4577 | fan_control_desired_level = status; | |
4578 | } | |
4579 | } | |
fe98a52c | 4580 | |
b21a15f6 HMH |
4581 | static int fan_get_status(u8 *status) |
4582 | { | |
4583 | u8 s; | |
fe98a52c | 4584 | |
b21a15f6 HMH |
4585 | /* TODO: |
4586 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4587 | |
b21a15f6 HMH |
4588 | switch (fan_status_access_mode) { |
4589 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4590 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4591 | |
b21a15f6 HMH |
4592 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4593 | return -EIO; | |
fe98a52c | 4594 | |
b21a15f6 HMH |
4595 | if (likely(status)) |
4596 | *status = s & 0x07; | |
fe98a52c | 4597 | |
b21a15f6 HMH |
4598 | break; |
4599 | ||
4600 | case TPACPI_FAN_RD_TPEC: | |
4601 | /* all except 570, 600e/x, 770e, 770x */ | |
4602 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4603 | return -EIO; | |
4604 | ||
4605 | if (likely(status)) | |
4606 | *status = s; | |
fe98a52c | 4607 | |
fe98a52c | 4608 | break; |
b21a15f6 | 4609 | |
fe98a52c | 4610 | default: |
b21a15f6 | 4611 | return -ENXIO; |
fe98a52c HMH |
4612 | } |
4613 | ||
b21a15f6 HMH |
4614 | return 0; |
4615 | } | |
fe98a52c | 4616 | |
b21a15f6 HMH |
4617 | static int fan_get_status_safe(u8 *status) |
4618 | { | |
4619 | int rc; | |
4620 | u8 s; | |
fe98a52c | 4621 | |
b21a15f6 HMH |
4622 | if (mutex_lock_interruptible(&fan_mutex)) |
4623 | return -ERESTARTSYS; | |
4624 | rc = fan_get_status(&s); | |
4625 | if (!rc) | |
4626 | fan_update_desired_level(s); | |
4627 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4628 | |
b21a15f6 HMH |
4629 | if (status) |
4630 | *status = s; | |
fe98a52c | 4631 | |
b21a15f6 HMH |
4632 | return rc; |
4633 | } | |
4634 | ||
4635 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4636 | { |
b21a15f6 | 4637 | u8 hi, lo; |
fe98a52c | 4638 | |
b21a15f6 HMH |
4639 | switch (fan_status_access_mode) { |
4640 | case TPACPI_FAN_RD_TPEC: | |
4641 | /* all except 570, 600e/x, 770e, 770x */ | |
4642 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4643 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4644 | return -EIO; | |
fe98a52c | 4645 | |
b21a15f6 HMH |
4646 | if (likely(speed)) |
4647 | *speed = (hi << 8) | lo; | |
fe98a52c | 4648 | |
b21a15f6 | 4649 | break; |
fe98a52c | 4650 | |
b21a15f6 HMH |
4651 | default: |
4652 | return -ENXIO; | |
4653 | } | |
fe98a52c | 4654 | |
b21a15f6 | 4655 | return 0; |
fe98a52c HMH |
4656 | } |
4657 | ||
b21a15f6 | 4658 | static int fan_set_level(int level) |
fe98a52c | 4659 | { |
b21a15f6 HMH |
4660 | if (!fan_control_allowed) |
4661 | return -EPERM; | |
fe98a52c | 4662 | |
b21a15f6 HMH |
4663 | switch (fan_control_access_mode) { |
4664 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4665 | if (level >= 0 && level <= 7) { | |
4666 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4667 | return -EIO; | |
4668 | } else | |
4669 | return -EINVAL; | |
4670 | break; | |
fe98a52c | 4671 | |
b21a15f6 HMH |
4672 | case TPACPI_FAN_WR_ACPI_FANS: |
4673 | case TPACPI_FAN_WR_TPEC: | |
4674 | if ((level != TP_EC_FAN_AUTO) && | |
4675 | (level != TP_EC_FAN_FULLSPEED) && | |
4676 | ((level < 0) || (level > 7))) | |
4677 | return -EINVAL; | |
fe98a52c | 4678 | |
b21a15f6 HMH |
4679 | /* safety net should the EC not support AUTO |
4680 | * or FULLSPEED mode bits and just ignore them */ | |
4681 | if (level & TP_EC_FAN_FULLSPEED) | |
4682 | level |= 7; /* safety min speed 7 */ | |
4683 | else if (level & TP_EC_FAN_FULLSPEED) | |
4684 | level |= 4; /* safety min speed 4 */ | |
fe98a52c | 4685 | |
b21a15f6 HMH |
4686 | if (!acpi_ec_write(fan_status_offset, level)) |
4687 | return -EIO; | |
4688 | else | |
4689 | tp_features.fan_ctrl_status_undef = 0; | |
4690 | break; | |
fe98a52c | 4691 | |
b21a15f6 HMH |
4692 | default: |
4693 | return -ENXIO; | |
4694 | } | |
4695 | return 0; | |
fe98a52c HMH |
4696 | } |
4697 | ||
b21a15f6 | 4698 | static int fan_set_level_safe(int level) |
fe98a52c | 4699 | { |
b21a15f6 | 4700 | int rc; |
fe98a52c | 4701 | |
b21a15f6 HMH |
4702 | if (!fan_control_allowed) |
4703 | return -EPERM; | |
fe98a52c | 4704 | |
b21a15f6 HMH |
4705 | if (mutex_lock_interruptible(&fan_mutex)) |
4706 | return -ERESTARTSYS; | |
fe98a52c | 4707 | |
b21a15f6 HMH |
4708 | if (level == TPACPI_FAN_LAST_LEVEL) |
4709 | level = fan_control_desired_level; | |
fe98a52c | 4710 | |
b21a15f6 HMH |
4711 | rc = fan_set_level(level); |
4712 | if (!rc) | |
4713 | fan_update_desired_level(level); | |
4714 | ||
4715 | mutex_unlock(&fan_mutex); | |
4716 | return rc; | |
fe98a52c HMH |
4717 | } |
4718 | ||
b21a15f6 | 4719 | static int fan_set_enable(void) |
fe98a52c | 4720 | { |
b21a15f6 HMH |
4721 | u8 s; |
4722 | int rc; | |
fe98a52c | 4723 | |
ecf2a80a HMH |
4724 | if (!fan_control_allowed) |
4725 | return -EPERM; | |
4726 | ||
b21a15f6 HMH |
4727 | if (mutex_lock_interruptible(&fan_mutex)) |
4728 | return -ERESTARTSYS; | |
fe98a52c | 4729 | |
b21a15f6 HMH |
4730 | switch (fan_control_access_mode) { |
4731 | case TPACPI_FAN_WR_ACPI_FANS: | |
4732 | case TPACPI_FAN_WR_TPEC: | |
4733 | rc = fan_get_status(&s); | |
4734 | if (rc < 0) | |
4735 | break; | |
fe98a52c | 4736 | |
b21a15f6 HMH |
4737 | /* Don't go out of emergency fan mode */ |
4738 | if (s != 7) { | |
4739 | s &= 0x07; | |
4740 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4741 | } | |
fe98a52c | 4742 | |
b21a15f6 HMH |
4743 | if (!acpi_ec_write(fan_status_offset, s)) |
4744 | rc = -EIO; | |
4745 | else { | |
4746 | tp_features.fan_ctrl_status_undef = 0; | |
4747 | rc = 0; | |
4748 | } | |
4749 | break; | |
fe98a52c | 4750 | |
b21a15f6 HMH |
4751 | case TPACPI_FAN_WR_ACPI_SFAN: |
4752 | rc = fan_get_status(&s); | |
4753 | if (rc < 0) | |
4754 | break; | |
fe98a52c | 4755 | |
b21a15f6 | 4756 | s &= 0x07; |
fe98a52c | 4757 | |
b21a15f6 HMH |
4758 | /* Set fan to at least level 4 */ |
4759 | s |= 4; | |
fe08bc4b | 4760 | |
b21a15f6 | 4761 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 4762 | rc = -EIO; |
b21a15f6 HMH |
4763 | else |
4764 | rc = 0; | |
4765 | break; | |
78f81cc4 | 4766 | |
b21a15f6 HMH |
4767 | default: |
4768 | rc = -ENXIO; | |
4769 | } | |
5fba344c | 4770 | |
b21a15f6 HMH |
4771 | mutex_unlock(&fan_mutex); |
4772 | return rc; | |
69ba91cb | 4773 | } |
78f81cc4 | 4774 | |
b21a15f6 | 4775 | static int fan_set_disable(void) |
78f81cc4 | 4776 | { |
b21a15f6 | 4777 | int rc; |
c52f0aa5 | 4778 | |
b21a15f6 HMH |
4779 | if (!fan_control_allowed) |
4780 | return -EPERM; | |
78f81cc4 | 4781 | |
b21a15f6 HMH |
4782 | if (mutex_lock_interruptible(&fan_mutex)) |
4783 | return -ERESTARTSYS; | |
3ef8a609 | 4784 | |
b21a15f6 HMH |
4785 | rc = 0; |
4786 | switch (fan_control_access_mode) { | |
4787 | case TPACPI_FAN_WR_ACPI_FANS: | |
4788 | case TPACPI_FAN_WR_TPEC: | |
4789 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
4790 | rc = -EIO; | |
4791 | else { | |
4792 | fan_control_desired_level = 0; | |
4793 | tp_features.fan_ctrl_status_undef = 0; | |
4794 | } | |
3ef8a609 HMH |
4795 | break; |
4796 | ||
b21a15f6 HMH |
4797 | case TPACPI_FAN_WR_ACPI_SFAN: |
4798 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
4799 | rc = -EIO; | |
4800 | else | |
4801 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
4802 | break; |
4803 | ||
4804 | default: | |
b21a15f6 | 4805 | rc = -ENXIO; |
78f81cc4 BD |
4806 | } |
4807 | ||
fe98a52c | 4808 | |
fe98a52c | 4809 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
4810 | return rc; |
4811 | } | |
4812 | ||
b21a15f6 | 4813 | static int fan_set_speed(int speed) |
c52f0aa5 | 4814 | { |
b21a15f6 | 4815 | int rc; |
c52f0aa5 | 4816 | |
b21a15f6 HMH |
4817 | if (!fan_control_allowed) |
4818 | return -EPERM; | |
3ef8a609 | 4819 | |
b21a15f6 HMH |
4820 | if (mutex_lock_interruptible(&fan_mutex)) |
4821 | return -ERESTARTSYS; | |
c52f0aa5 | 4822 | |
b21a15f6 HMH |
4823 | rc = 0; |
4824 | switch (fan_control_access_mode) { | |
4825 | case TPACPI_FAN_WR_ACPI_FANS: | |
4826 | if (speed >= 0 && speed <= 65535) { | |
4827 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4828 | speed, speed, speed)) | |
4829 | rc = -EIO; | |
4830 | } else | |
4831 | rc = -EINVAL; | |
c52f0aa5 HMH |
4832 | break; |
4833 | ||
4834 | default: | |
b21a15f6 | 4835 | rc = -ENXIO; |
c52f0aa5 HMH |
4836 | } |
4837 | ||
b21a15f6 HMH |
4838 | mutex_unlock(&fan_mutex); |
4839 | return rc; | |
16663a87 HMH |
4840 | } |
4841 | ||
4842 | static void fan_watchdog_reset(void) | |
4843 | { | |
94954cc6 | 4844 | static int fan_watchdog_active; |
16663a87 | 4845 | |
4985cd0a HMH |
4846 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
4847 | return; | |
4848 | ||
16663a87 HMH |
4849 | if (fan_watchdog_active) |
4850 | cancel_delayed_work(&fan_watchdog_task); | |
4851 | ||
8fef502e HMH |
4852 | if (fan_watchdog_maxinterval > 0 && |
4853 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
4854 | fan_watchdog_active = 1; |
4855 | if (!schedule_delayed_work(&fan_watchdog_task, | |
4856 | msecs_to_jiffies(fan_watchdog_maxinterval | |
4857 | * 1000))) { | |
35ff8b9f HMH |
4858 | printk(TPACPI_ERR |
4859 | "failed to schedule the fan watchdog, " | |
16663a87 HMH |
4860 | "watchdog will not trigger\n"); |
4861 | } | |
4862 | } else | |
4863 | fan_watchdog_active = 0; | |
4864 | } | |
4865 | ||
b21a15f6 | 4866 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 4867 | { |
b21a15f6 | 4868 | int rc; |
18ad7996 | 4869 | |
b21a15f6 HMH |
4870 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
4871 | return; | |
a12095c2 | 4872 | |
e0c7dfe7 | 4873 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
4874 | rc = fan_set_enable(); |
4875 | if (rc < 0) { | |
e0c7dfe7 | 4876 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
4877 | "will try again later...\n", -rc); |
4878 | /* reschedule for later */ | |
4879 | fan_watchdog_reset(); | |
4880 | } | |
4881 | } | |
eaa7571b | 4882 | |
b21a15f6 HMH |
4883 | /* |
4884 | * SYSFS fan layout: hwmon compatible (device) | |
4885 | * | |
4886 | * pwm*_enable: | |
4887 | * 0: "disengaged" mode | |
4888 | * 1: manual mode | |
4889 | * 2: native EC "auto" mode (recommended, hardware default) | |
4890 | * | |
4891 | * pwm*: set speed in manual mode, ignored otherwise. | |
4892 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
4893 | * interpolation. | |
4894 | * | |
4895 | * fan*_input: tachometer reading, RPM | |
4896 | * | |
4897 | * | |
4898 | * SYSFS fan layout: extensions | |
4899 | * | |
4900 | * fan_watchdog (driver): | |
4901 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
4902 | */ | |
4903 | ||
4904 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
4905 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
4906 | struct device_attribute *attr, | |
4907 | char *buf) | |
4908 | { | |
4909 | int res, mode; | |
4910 | u8 status; | |
4911 | ||
4912 | res = fan_get_status_safe(&status); | |
4913 | if (res) | |
4914 | return res; | |
4915 | ||
4916 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4917 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 4918 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
4919 | } else { |
4920 | /* Return most likely status. In fact, it | |
4921 | * might be the only possible status */ | |
4922 | status = TP_EC_FAN_AUTO; | |
4923 | } | |
4924 | } | |
4925 | ||
4926 | if (status & TP_EC_FAN_FULLSPEED) { | |
4927 | mode = 0; | |
4928 | } else if (status & TP_EC_FAN_AUTO) { | |
4929 | mode = 2; | |
4930 | } else | |
4931 | mode = 1; | |
4932 | ||
4933 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
4934 | } | |
a12095c2 | 4935 | |
b21a15f6 HMH |
4936 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
4937 | struct device_attribute *attr, | |
4938 | const char *buf, size_t count) | |
4939 | { | |
4940 | unsigned long t; | |
4941 | int res, level; | |
4942 | ||
4943 | if (parse_strtoul(buf, 2, &t)) | |
4944 | return -EINVAL; | |
4945 | ||
4946 | switch (t) { | |
4947 | case 0: | |
4948 | level = TP_EC_FAN_FULLSPEED; | |
4949 | break; | |
4950 | case 1: | |
4951 | level = TPACPI_FAN_LAST_LEVEL; | |
4952 | break; | |
4953 | case 2: | |
4954 | level = TP_EC_FAN_AUTO; | |
4955 | break; | |
4956 | case 3: | |
4957 | /* reserved for software-controlled auto mode */ | |
4958 | return -ENOSYS; | |
18ad7996 | 4959 | default: |
b21a15f6 | 4960 | return -EINVAL; |
18ad7996 | 4961 | } |
b21a15f6 HMH |
4962 | |
4963 | res = fan_set_level_safe(level); | |
4964 | if (res == -ENXIO) | |
4965 | return -EINVAL; | |
4966 | else if (res < 0) | |
4967 | return res; | |
4968 | ||
4969 | fan_watchdog_reset(); | |
4970 | ||
4971 | return count; | |
18ad7996 HMH |
4972 | } |
4973 | ||
b21a15f6 HMH |
4974 | static struct device_attribute dev_attr_fan_pwm1_enable = |
4975 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
4976 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
4977 | ||
4978 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
4979 | static ssize_t fan_pwm1_show(struct device *dev, | |
4980 | struct device_attribute *attr, | |
4981 | char *buf) | |
fe98a52c | 4982 | { |
b21a15f6 HMH |
4983 | int res; |
4984 | u8 status; | |
fe98a52c | 4985 | |
b21a15f6 HMH |
4986 | res = fan_get_status_safe(&status); |
4987 | if (res) | |
4988 | return res; | |
ecf2a80a | 4989 | |
b21a15f6 HMH |
4990 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
4991 | if (status != fan_control_initial_status) { | |
4992 | tp_features.fan_ctrl_status_undef = 0; | |
4993 | } else { | |
4994 | status = TP_EC_FAN_AUTO; | |
4995 | } | |
4996 | } | |
fe98a52c | 4997 | |
b21a15f6 HMH |
4998 | if ((status & |
4999 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5000 | status = fan_control_desired_level; | |
fe98a52c | 5001 | |
b21a15f6 HMH |
5002 | if (status > 7) |
5003 | status = 7; | |
fe98a52c | 5004 | |
b21a15f6 | 5005 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5006 | } |
5007 | ||
b21a15f6 HMH |
5008 | static ssize_t fan_pwm1_store(struct device *dev, |
5009 | struct device_attribute *attr, | |
5010 | const char *buf, size_t count) | |
18ad7996 | 5011 | { |
b21a15f6 | 5012 | unsigned long s; |
1c6a334e | 5013 | int rc; |
b21a15f6 | 5014 | u8 status, newlevel; |
1c6a334e | 5015 | |
b21a15f6 HMH |
5016 | if (parse_strtoul(buf, 255, &s)) |
5017 | return -EINVAL; | |
5018 | ||
5019 | /* scale down from 0-255 to 0-7 */ | |
5020 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5021 | |
fc589a3c HMH |
5022 | if (mutex_lock_interruptible(&fan_mutex)) |
5023 | return -ERESTARTSYS; | |
40ca9fdf | 5024 | |
b21a15f6 HMH |
5025 | rc = fan_get_status(&status); |
5026 | if (!rc && (status & | |
5027 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5028 | rc = fan_set_level(newlevel); | |
5029 | if (rc == -ENXIO) | |
5030 | rc = -EINVAL; | |
5031 | else if (!rc) { | |
5032 | fan_update_desired_level(newlevel); | |
5033 | fan_watchdog_reset(); | |
eaa7571b | 5034 | } |
b21a15f6 | 5035 | } |
1c6a334e | 5036 | |
b21a15f6 HMH |
5037 | mutex_unlock(&fan_mutex); |
5038 | return (rc)? rc : count; | |
5039 | } | |
1c6a334e | 5040 | |
b21a15f6 HMH |
5041 | static struct device_attribute dev_attr_fan_pwm1 = |
5042 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5043 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5044 | |
b21a15f6 HMH |
5045 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5046 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5047 | struct device_attribute *attr, | |
5048 | char *buf) | |
5049 | { | |
5050 | int res; | |
5051 | unsigned int speed; | |
1c6a334e | 5052 | |
b21a15f6 HMH |
5053 | res = fan_get_speed(&speed); |
5054 | if (res < 0) | |
5055 | return res; | |
1c6a334e | 5056 | |
b21a15f6 HMH |
5057 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5058 | } | |
18ad7996 | 5059 | |
b21a15f6 HMH |
5060 | static struct device_attribute dev_attr_fan_fan1_input = |
5061 | __ATTR(fan1_input, S_IRUGO, | |
5062 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5063 | |
b21a15f6 HMH |
5064 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5065 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5066 | char *buf) | |
5067 | { | |
5068 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5069 | } |
5070 | ||
b21a15f6 HMH |
5071 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5072 | const char *buf, size_t count) | |
18ad7996 | 5073 | { |
b21a15f6 HMH |
5074 | unsigned long t; |
5075 | ||
5076 | if (parse_strtoul(buf, 120, &t)) | |
5077 | return -EINVAL; | |
40ca9fdf | 5078 | |
ecf2a80a HMH |
5079 | if (!fan_control_allowed) |
5080 | return -EPERM; | |
5081 | ||
b21a15f6 HMH |
5082 | fan_watchdog_maxinterval = t; |
5083 | fan_watchdog_reset(); | |
40ca9fdf | 5084 | |
b21a15f6 HMH |
5085 | return count; |
5086 | } | |
5087 | ||
5088 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5089 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5090 | ||
5091 | /* --------------------------------------------------------------------- */ | |
5092 | static struct attribute *fan_attributes[] = { | |
5093 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5094 | &dev_attr_fan_fan1_input.attr, | |
5095 | NULL | |
5096 | }; | |
5097 | ||
5098 | static const struct attribute_group fan_attr_group = { | |
5099 | .attrs = fan_attributes, | |
5100 | }; | |
5101 | ||
5102 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5103 | { | |
5104 | int rc; | |
5105 | ||
5106 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5107 | ||
5108 | mutex_init(&fan_mutex); | |
5109 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5110 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5111 | fan_control_commands = 0; | |
5112 | fan_watchdog_maxinterval = 0; | |
5113 | tp_features.fan_ctrl_status_undef = 0; | |
5114 | fan_control_desired_level = 7; | |
5115 | ||
e0c7dfe7 HMH |
5116 | TPACPI_ACPIHANDLE_INIT(fans); |
5117 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5118 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5119 | |
5120 | if (gfan_handle) { | |
5121 | /* 570, 600e/x, 770e, 770x */ | |
5122 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5123 | } else { | |
5124 | /* all other ThinkPads: note that even old-style | |
5125 | * ThinkPad ECs supports the fan control register */ | |
5126 | if (likely(acpi_ec_read(fan_status_offset, | |
5127 | &fan_control_initial_status))) { | |
5128 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5129 | ||
5130 | /* In some ThinkPads, neither the EC nor the ACPI | |
5131 | * DSDT initialize the fan status, and it ends up | |
5132 | * being set to 0x07 when it *could* be either | |
5133 | * 0x07 or 0x80. | |
5134 | * | |
5135 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5136 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5137 | * to be buggy. */ | |
5138 | if (fan_control_initial_status == 0x07) { | |
5139 | switch (thinkpad_id.ec_model) { | |
5140 | case 0x5931: /* TP-1Y */ | |
5141 | case 0x3837: /* TP-78 */ | |
5142 | case 0x3637: /* TP-76 */ | |
5143 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5144 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5145 | "fan_init: initial fan status " |
5146 | "is unknown, assuming it is " | |
5147 | "in auto mode\n"); | |
b21a15f6 HMH |
5148 | tp_features.fan_ctrl_status_undef = 1; |
5149 | ;; | |
5150 | } | |
5151 | } | |
5152 | } else { | |
e0c7dfe7 | 5153 | printk(TPACPI_ERR |
b21a15f6 HMH |
5154 | "ThinkPad ACPI EC access misbehaving, " |
5155 | "fan status and control unavailable\n"); | |
5156 | return 1; | |
5157 | } | |
5158 | } | |
5159 | ||
5160 | if (sfan_handle) { | |
5161 | /* 570, 770x-JL */ | |
5162 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5163 | fan_control_commands |= | |
5164 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5165 | } else { | |
5166 | if (!gfan_handle) { | |
5167 | /* gfan without sfan means no fan control */ | |
5168 | /* all other models implement TP EC 0x2f control */ | |
5169 | ||
5170 | if (fans_handle) { | |
5171 | /* X31, X40, X41 */ | |
5172 | fan_control_access_mode = | |
5173 | TPACPI_FAN_WR_ACPI_FANS; | |
5174 | fan_control_commands |= | |
5175 | TPACPI_FAN_CMD_SPEED | | |
5176 | TPACPI_FAN_CMD_LEVEL | | |
5177 | TPACPI_FAN_CMD_ENABLE; | |
5178 | } else { | |
5179 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5180 | fan_control_commands |= | |
5181 | TPACPI_FAN_CMD_LEVEL | | |
5182 | TPACPI_FAN_CMD_ENABLE; | |
5183 | } | |
fe98a52c | 5184 | } |
b21a15f6 | 5185 | } |
18ad7996 | 5186 | |
b21a15f6 HMH |
5187 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5188 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5189 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5190 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5191 | |
b21a15f6 HMH |
5192 | /* fan control master switch */ |
5193 | if (!fan_control_allowed) { | |
5194 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5195 | fan_control_commands = 0; | |
5196 | dbg_printk(TPACPI_DBG_INIT, | |
5197 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5198 | } |
40ca9fdf | 5199 | |
b21a15f6 HMH |
5200 | /* update fan_control_desired_level */ |
5201 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5202 | fan_get_status_safe(NULL); | |
fe98a52c | 5203 | |
b21a15f6 HMH |
5204 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5205 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5206 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5207 | &fan_attr_group); | |
5208 | if (!(rc < 0)) | |
5209 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5210 | &driver_attr_fan_watchdog); | |
5211 | if (rc < 0) | |
5212 | return rc; | |
5213 | return 0; | |
5214 | } else | |
5215 | return 1; | |
56b6aeb0 HMH |
5216 | } |
5217 | ||
b21a15f6 | 5218 | static void fan_exit(void) |
56b6aeb0 | 5219 | { |
35ff8b9f HMH |
5220 | vdbg_printk(TPACPI_DBG_EXIT, |
5221 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5222 | |
b21a15f6 HMH |
5223 | /* FIXME: can we really do this unconditionally? */ |
5224 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5225 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5226 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5227 | |
b21a15f6 HMH |
5228 | cancel_delayed_work(&fan_watchdog_task); |
5229 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5230 | } |
5231 | ||
5232 | static int fan_read(char *p) | |
5233 | { | |
5234 | int len = 0; | |
5235 | int rc; | |
5236 | u8 status; | |
5237 | unsigned int speed = 0; | |
5238 | ||
5239 | switch (fan_status_access_mode) { | |
efa27145 | 5240 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5241 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5242 | rc = fan_get_status_safe(&status); |
5243 | if (rc < 0) | |
56b6aeb0 HMH |
5244 | return rc; |
5245 | ||
5246 | len += sprintf(p + len, "status:\t\t%s\n" | |
5247 | "level:\t\t%d\n", | |
5248 | (status != 0) ? "enabled" : "disabled", status); | |
5249 | break; | |
5250 | ||
efa27145 | 5251 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5252 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5253 | rc = fan_get_status_safe(&status); |
5254 | if (rc < 0) | |
56b6aeb0 HMH |
5255 | return rc; |
5256 | ||
d8fd94d9 | 5257 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5258 | if (status != fan_control_initial_status) |
d8fd94d9 | 5259 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5260 | else |
5261 | /* Return most likely status. In fact, it | |
5262 | * might be the only possible status */ | |
efa27145 | 5263 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5264 | } |
5265 | ||
5266 | len += sprintf(p + len, "status:\t\t%s\n", | |
5267 | (status != 0) ? "enabled" : "disabled"); | |
5268 | ||
35ff8b9f HMH |
5269 | rc = fan_get_speed(&speed); |
5270 | if (rc < 0) | |
56b6aeb0 HMH |
5271 | return rc; |
5272 | ||
5273 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5274 | ||
efa27145 | 5275 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5276 | /* Disengaged mode takes precedence */ |
5277 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5278 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5279 | len += sprintf(p + len, "level:\t\tauto\n"); |
5280 | else | |
5281 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5282 | break; | |
5283 | ||
efa27145 | 5284 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5285 | default: |
5286 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5287 | } | |
5288 | ||
efa27145 | 5289 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5290 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5291 | ||
5292 | switch (fan_control_access_mode) { | |
efa27145 | 5293 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5294 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5295 | break; | |
5296 | ||
5297 | default: | |
5298 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5299 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5300 | break; |
5301 | } | |
5302 | } | |
18ad7996 | 5303 | |
efa27145 | 5304 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5305 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5306 | "commands:\twatchdog <timeout> (<timeout> " |
5307 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5308 | |
efa27145 | 5309 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5310 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5311 | " (<speed> is 0-65535)\n"); | |
5312 | ||
5313 | return len; | |
78f81cc4 BD |
5314 | } |
5315 | ||
18ad7996 HMH |
5316 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5317 | { | |
5318 | int level; | |
5319 | ||
a12095c2 | 5320 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5321 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5322 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5323 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5324 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5325 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5326 | return 0; |
5327 | ||
35ff8b9f HMH |
5328 | *rc = fan_set_level_safe(level); |
5329 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5330 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5331 | "access mode %d", fan_control_access_mode); |
5332 | ||
5333 | return 1; | |
5334 | } | |
5335 | ||
5336 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5337 | { | |
5338 | if (strlencmp(cmd, "enable") != 0) | |
5339 | return 0; | |
5340 | ||
35ff8b9f HMH |
5341 | *rc = fan_set_enable(); |
5342 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5343 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5344 | "access mode %d", fan_control_access_mode); |
5345 | ||
5346 | return 1; | |
5347 | } | |
5348 | ||
5349 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5350 | { | |
5351 | if (strlencmp(cmd, "disable") != 0) | |
5352 | return 0; | |
5353 | ||
35ff8b9f HMH |
5354 | *rc = fan_set_disable(); |
5355 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5356 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5357 | "access mode %d", fan_control_access_mode); |
5358 | ||
5359 | return 1; | |
5360 | } | |
5361 | ||
5362 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5363 | { | |
5364 | int speed; | |
5365 | ||
a8b7a662 HMH |
5366 | /* TODO: |
5367 | * Support speed <low> <medium> <high> ? */ | |
5368 | ||
18ad7996 HMH |
5369 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5370 | return 0; | |
5371 | ||
35ff8b9f HMH |
5372 | *rc = fan_set_speed(speed); |
5373 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5374 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5375 | "access mode %d", fan_control_access_mode); |
5376 | ||
5377 | return 1; | |
5378 | } | |
5379 | ||
16663a87 HMH |
5380 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5381 | { | |
5382 | int interval; | |
5383 | ||
5384 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5385 | return 0; | |
5386 | ||
5387 | if (interval < 0 || interval > 120) | |
5388 | *rc = -EINVAL; | |
5389 | else | |
5390 | fan_watchdog_maxinterval = interval; | |
5391 | ||
5392 | return 1; | |
5393 | } | |
5394 | ||
18ad7996 HMH |
5395 | static int fan_write(char *buf) |
5396 | { | |
5397 | char *cmd; | |
5398 | int rc = 0; | |
5399 | ||
5400 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5401 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5402 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5403 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5404 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5405 | fan_write_cmd_disable(cmd, &rc) || |
5406 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5407 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5408 | fan_write_cmd_speed(cmd, &rc)) |
5409 | ) | |
5410 | rc = -EINVAL; | |
16663a87 HMH |
5411 | else if (!rc) |
5412 | fan_watchdog_reset(); | |
18ad7996 HMH |
5413 | } |
5414 | ||
5415 | return rc; | |
5416 | } | |
5417 | ||
a5763f22 HMH |
5418 | static struct ibm_struct fan_driver_data = { |
5419 | .name = "fan", | |
5420 | .read = fan_read, | |
5421 | .write = fan_write, | |
5422 | .exit = fan_exit, | |
a5763f22 HMH |
5423 | }; |
5424 | ||
56b6aeb0 HMH |
5425 | /**************************************************************************** |
5426 | **************************************************************************** | |
5427 | * | |
5428 | * Infrastructure | |
5429 | * | |
5430 | **************************************************************************** | |
5431 | ****************************************************************************/ | |
5432 | ||
7fd40029 HMH |
5433 | /* sysfs name ---------------------------------------------------------- */ |
5434 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5435 | struct device_attribute *attr, | |
5436 | char *buf) | |
5437 | { | |
e0c7dfe7 | 5438 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5439 | } |
5440 | ||
5441 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5442 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5443 | ||
5444 | /* --------------------------------------------------------------------- */ | |
5445 | ||
56b6aeb0 | 5446 | /* /proc support */ |
94954cc6 | 5447 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5448 | |
56b6aeb0 HMH |
5449 | /* |
5450 | * Module and infrastructure proble, init and exit handling | |
5451 | */ | |
1da177e4 | 5452 | |
b21a15f6 HMH |
5453 | static int force_load; |
5454 | ||
fe08bc4b | 5455 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5456 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5457 | { |
a5763f22 | 5458 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5459 | |
a5763f22 | 5460 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5461 | } |
5462 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5463 | ||
b21a15f6 HMH |
5464 | static void ibm_exit(struct ibm_struct *ibm) |
5465 | { | |
5466 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5467 | ||
5468 | list_del_init(&ibm->all_drivers); | |
5469 | ||
5470 | if (ibm->flags.acpi_notify_installed) { | |
5471 | dbg_printk(TPACPI_DBG_EXIT, | |
5472 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5473 | BUG_ON(!ibm->acpi); | |
5474 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5475 | ibm->acpi->type, | |
5476 | dispatch_acpi_notify); | |
5477 | ibm->flags.acpi_notify_installed = 0; | |
5478 | ibm->flags.acpi_notify_installed = 0; | |
5479 | } | |
5480 | ||
5481 | if (ibm->flags.proc_created) { | |
5482 | dbg_printk(TPACPI_DBG_EXIT, | |
5483 | "%s: remove_proc_entry\n", ibm->name); | |
5484 | remove_proc_entry(ibm->name, proc_dir); | |
5485 | ibm->flags.proc_created = 0; | |
5486 | } | |
5487 | ||
5488 | if (ibm->flags.acpi_driver_registered) { | |
5489 | dbg_printk(TPACPI_DBG_EXIT, | |
5490 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5491 | BUG_ON(!ibm->acpi); | |
5492 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5493 | kfree(ibm->acpi->driver); | |
5494 | ibm->acpi->driver = NULL; | |
5495 | ibm->flags.acpi_driver_registered = 0; | |
5496 | } | |
5497 | ||
5498 | if (ibm->flags.init_called && ibm->exit) { | |
5499 | ibm->exit(); | |
5500 | ibm->flags.init_called = 0; | |
5501 | } | |
5502 | ||
5503 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5504 | } | |
f74a27d4 | 5505 | |
a5763f22 | 5506 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5507 | { |
5508 | int ret; | |
a5763f22 | 5509 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5510 | struct proc_dir_entry *entry; |
5511 | ||
a5763f22 HMH |
5512 | BUG_ON(ibm == NULL); |
5513 | ||
5514 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5515 | ||
92641177 | 5516 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5517 | return 0; |
5518 | ||
fe08bc4b HMH |
5519 | dbg_printk(TPACPI_DBG_INIT, |
5520 | "probing for %s\n", ibm->name); | |
5521 | ||
a5763f22 HMH |
5522 | if (iibm->init) { |
5523 | ret = iibm->init(iibm); | |
5fba344c HMH |
5524 | if (ret > 0) |
5525 | return 0; /* probe failed */ | |
5526 | if (ret) | |
1da177e4 | 5527 | return ret; |
a5763f22 | 5528 | |
92641177 | 5529 | ibm->flags.init_called = 1; |
1da177e4 LT |
5530 | } |
5531 | ||
8d376cd6 HMH |
5532 | if (ibm->acpi) { |
5533 | if (ibm->acpi->hid) { | |
5534 | ret = register_tpacpi_subdriver(ibm); | |
5535 | if (ret) | |
5536 | goto err_out; | |
5537 | } | |
5fba344c | 5538 | |
8d376cd6 HMH |
5539 | if (ibm->acpi->notify) { |
5540 | ret = setup_acpi_notify(ibm); | |
5541 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5542 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5543 | ibm->name); |
5544 | ret = 0; | |
5545 | goto err_out; | |
5546 | } | |
5547 | if (ret < 0) | |
5548 | goto err_out; | |
5fba344c | 5549 | } |
5fba344c HMH |
5550 | } |
5551 | ||
fe08bc4b HMH |
5552 | dbg_printk(TPACPI_DBG_INIT, |
5553 | "%s installed\n", ibm->name); | |
5554 | ||
78f81cc4 BD |
5555 | if (ibm->read) { |
5556 | entry = create_proc_entry(ibm->name, | |
5557 | S_IFREG | S_IRUGO | S_IWUSR, | |
5558 | proc_dir); | |
5559 | if (!entry) { | |
e0c7dfe7 | 5560 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5561 | ibm->name); |
5fba344c HMH |
5562 | ret = -ENODEV; |
5563 | goto err_out; | |
78f81cc4 BD |
5564 | } |
5565 | entry->owner = THIS_MODULE; | |
5566 | entry->data = ibm; | |
8d376cd6 | 5567 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5568 | if (ibm->write) |
8d376cd6 | 5569 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5570 | ibm->flags.proc_created = 1; |
78f81cc4 | 5571 | } |
1da177e4 | 5572 | |
a5763f22 HMH |
5573 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5574 | ||
1da177e4 | 5575 | return 0; |
5fba344c HMH |
5576 | |
5577 | err_out: | |
fe08bc4b HMH |
5578 | dbg_printk(TPACPI_DBG_INIT, |
5579 | "%s: at error exit path with result %d\n", | |
5580 | ibm->name, ret); | |
5581 | ||
5fba344c HMH |
5582 | ibm_exit(ibm); |
5583 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5584 | } |
5585 | ||
56b6aeb0 HMH |
5586 | /* Probing */ |
5587 | ||
d5a2f2f1 | 5588 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5589 | { |
1855256c | 5590 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5591 | char ec_fw_string[18]; |
1da177e4 | 5592 | |
d5a2f2f1 HMH |
5593 | if (!tp) |
5594 | return; | |
5595 | ||
5596 | memset(tp, 0, sizeof(*tp)); | |
5597 | ||
5598 | if (dmi_name_in_vendors("IBM")) | |
5599 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5600 | else if (dmi_name_in_vendors("LENOVO")) | |
5601 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5602 | else | |
5603 | return; | |
5604 | ||
5605 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5606 | GFP_KERNEL); | |
5607 | if (!tp->bios_version_str) | |
5608 | return; | |
5609 | tp->bios_model = tp->bios_version_str[0] | |
5610 | | (tp->bios_version_str[1] << 8); | |
5611 | ||
56b6aeb0 HMH |
5612 | /* |
5613 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5614 | * X32 or newer, all Z series; Some models must have an | |
5615 | * up-to-date BIOS or they will not be detected. | |
5616 | * | |
5617 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5618 | */ | |
5619 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5620 | if (sscanf(dev->name, | |
5621 | "IBM ThinkPad Embedded Controller -[%17c", | |
5622 | ec_fw_string) == 1) { | |
5623 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5624 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5625 | |
5626 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5627 | tp->ec_model = ec_fw_string[0] | |
5628 | | (ec_fw_string[1] << 8); | |
5629 | break; | |
78f81cc4 | 5630 | } |
1da177e4 | 5631 | } |
d5a2f2f1 HMH |
5632 | |
5633 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5634 | GFP_KERNEL); | |
5635 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5636 | kfree(tp->model_str); | |
5637 | tp->model_str = NULL; | |
5638 | } | |
1da177e4 LT |
5639 | } |
5640 | ||
5fba344c HMH |
5641 | static int __init probe_for_thinkpad(void) |
5642 | { | |
5643 | int is_thinkpad; | |
5644 | ||
5645 | if (acpi_disabled) | |
5646 | return -ENODEV; | |
5647 | ||
5648 | /* | |
5649 | * Non-ancient models have better DMI tagging, but very old models | |
5650 | * don't. | |
5651 | */ | |
d5a2f2f1 | 5652 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5653 | |
5654 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 5655 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5656 | if (!ec_handle) { |
5657 | if (is_thinkpad) | |
e0c7dfe7 | 5658 | printk(TPACPI_ERR |
5fba344c HMH |
5659 | "Not yet supported ThinkPad detected!\n"); |
5660 | return -ENODEV; | |
5661 | } | |
5662 | ||
0dcef77c HMH |
5663 | /* |
5664 | * Risks a regression on very old machines, but reduces potential | |
5665 | * false positives a damn great deal | |
5666 | */ | |
5667 | if (!is_thinkpad) | |
d5a2f2f1 | 5668 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5669 | |
5670 | if (!is_thinkpad && !force_load) | |
5671 | return -ENODEV; | |
5672 | ||
5fba344c HMH |
5673 | return 0; |
5674 | } | |
5675 | ||
5676 | ||
56b6aeb0 | 5677 | /* Module init, exit, parameters */ |
1da177e4 | 5678 | |
a5763f22 HMH |
5679 | static struct ibm_init_struct ibms_init[] __initdata = { |
5680 | { | |
5681 | .init = thinkpad_acpi_driver_init, | |
5682 | .data = &thinkpad_acpi_driver_data, | |
5683 | }, | |
5684 | { | |
5685 | .init = hotkey_init, | |
5686 | .data = &hotkey_driver_data, | |
5687 | }, | |
5688 | { | |
5689 | .init = bluetooth_init, | |
5690 | .data = &bluetooth_driver_data, | |
5691 | }, | |
5692 | { | |
5693 | .init = wan_init, | |
5694 | .data = &wan_driver_data, | |
5695 | }, | |
5696 | { | |
5697 | .init = video_init, | |
5698 | .data = &video_driver_data, | |
5699 | }, | |
5700 | { | |
5701 | .init = light_init, | |
5702 | .data = &light_driver_data, | |
5703 | }, | |
5704 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5705 | { | |
5706 | .init = dock_init, | |
5707 | .data = &dock_driver_data[0], | |
5708 | }, | |
5709 | { | |
d94a7f16 | 5710 | .init = dock_init2, |
a5763f22 HMH |
5711 | .data = &dock_driver_data[1], |
5712 | }, | |
5713 | #endif | |
5714 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5715 | { | |
5716 | .init = bay_init, | |
5717 | .data = &bay_driver_data, | |
5718 | }, | |
5719 | #endif | |
5720 | { | |
5721 | .init = cmos_init, | |
5722 | .data = &cmos_driver_data, | |
5723 | }, | |
5724 | { | |
5725 | .init = led_init, | |
5726 | .data = &led_driver_data, | |
5727 | }, | |
5728 | { | |
5729 | .init = beep_init, | |
5730 | .data = &beep_driver_data, | |
5731 | }, | |
5732 | { | |
5733 | .init = thermal_init, | |
5734 | .data = &thermal_driver_data, | |
5735 | }, | |
5736 | { | |
5737 | .data = &ecdump_driver_data, | |
5738 | }, | |
5739 | { | |
5740 | .init = brightness_init, | |
5741 | .data = &brightness_driver_data, | |
5742 | }, | |
5743 | { | |
5744 | .data = &volume_driver_data, | |
5745 | }, | |
5746 | { | |
5747 | .init = fan_init, | |
5748 | .data = &fan_driver_data, | |
5749 | }, | |
5750 | }; | |
5751 | ||
3945ac36 | 5752 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5753 | { |
5754 | unsigned int i; | |
a5763f22 | 5755 | struct ibm_struct *ibm; |
1da177e4 | 5756 | |
59f91ff1 HMH |
5757 | if (!kp || !kp->name || !val) |
5758 | return -EINVAL; | |
5759 | ||
a5763f22 HMH |
5760 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5761 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5762 | WARN_ON(ibm == NULL); |
5763 | ||
5764 | if (!ibm || !ibm->name) | |
5765 | continue; | |
a5763f22 HMH |
5766 | |
5767 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5768 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5769 | return -ENOSPC; |
a5763f22 HMH |
5770 | strcpy(ibms_init[i].param, val); |
5771 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5772 | return 0; |
5773 | } | |
a5763f22 | 5774 | } |
1da177e4 | 5775 | |
1da177e4 LT |
5776 | return -EINVAL; |
5777 | } | |
5778 | ||
56b6aeb0 | 5779 | module_param(experimental, int, 0); |
f68080f8 | 5780 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 5781 | "Enables experimental features when non-zero"); |
56b6aeb0 | 5782 | |
132ce091 | 5783 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 5784 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 5785 | |
86cc9445 | 5786 | module_param(force_load, bool, 0); |
f68080f8 | 5787 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
5788 | "Attempts to load the driver even on a " |
5789 | "mis-identified ThinkPad when true"); | |
0dcef77c | 5790 | |
86cc9445 | 5791 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 5792 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 5793 | "Enables setting fan parameters features when true"); |
ecf2a80a | 5794 | |
24d3b774 | 5795 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 5796 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
5797 | "Selects brightness control strategy: " |
5798 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 5799 | |
87cc537a | 5800 | module_param(brightness_enable, uint, 0); |
f68080f8 | 5801 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 5802 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 5803 | |
ff80f137 | 5804 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 5805 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
5806 | "used for backwards compatibility with userspace, " |
5807 | "see documentation"); | |
ff80f137 | 5808 | |
e0c7dfe7 | 5809 | #define TPACPI_PARAM(feature) \ |
f68080f8 HMH |
5810 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5811 | MODULE_PARM_DESC(feature, "Simulates thinkpad-aci procfs command " \ | |
35ff8b9f | 5812 | "at module load, see documentation") |
1da177e4 | 5813 | |
e0c7dfe7 HMH |
5814 | TPACPI_PARAM(hotkey); |
5815 | TPACPI_PARAM(bluetooth); | |
5816 | TPACPI_PARAM(video); | |
5817 | TPACPI_PARAM(light); | |
85998248 | 5818 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 5819 | TPACPI_PARAM(dock); |
63e5f248 | 5820 | #endif |
85998248 | 5821 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 5822 | TPACPI_PARAM(bay); |
85998248 | 5823 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
5824 | TPACPI_PARAM(cmos); |
5825 | TPACPI_PARAM(led); | |
5826 | TPACPI_PARAM(beep); | |
5827 | TPACPI_PARAM(ecdump); | |
5828 | TPACPI_PARAM(brightness); | |
5829 | TPACPI_PARAM(volume); | |
5830 | TPACPI_PARAM(fan); | |
78f81cc4 | 5831 | |
b21a15f6 HMH |
5832 | static void thinkpad_acpi_module_exit(void) |
5833 | { | |
5834 | struct ibm_struct *ibm, *itmp; | |
5835 | ||
5836 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
5837 | ||
5838 | list_for_each_entry_safe_reverse(ibm, itmp, | |
5839 | &tpacpi_all_drivers, | |
5840 | all_drivers) { | |
5841 | ibm_exit(ibm); | |
5842 | } | |
5843 | ||
5844 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
5845 | ||
5846 | if (tpacpi_inputdev) { | |
5847 | if (tp_features.input_device_registered) | |
5848 | input_unregister_device(tpacpi_inputdev); | |
5849 | else | |
5850 | input_free_device(tpacpi_inputdev); | |
5851 | } | |
5852 | ||
5853 | if (tpacpi_hwmon) | |
5854 | hwmon_device_unregister(tpacpi_hwmon); | |
5855 | ||
5856 | if (tp_features.sensors_pdev_attrs_registered) | |
5857 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
5858 | &dev_attr_thinkpad_acpi_pdev_name); | |
5859 | if (tpacpi_sensors_pdev) | |
5860 | platform_device_unregister(tpacpi_sensors_pdev); | |
5861 | if (tpacpi_pdev) | |
5862 | platform_device_unregister(tpacpi_pdev); | |
5863 | ||
5864 | if (tp_features.sensors_pdrv_attrs_registered) | |
5865 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5866 | if (tp_features.platform_drv_attrs_registered) | |
5867 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
5868 | ||
5869 | if (tp_features.sensors_pdrv_registered) | |
5870 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
5871 | ||
5872 | if (tp_features.platform_drv_registered) | |
5873 | platform_driver_unregister(&tpacpi_pdriver); | |
5874 | ||
5875 | if (proc_dir) | |
e0c7dfe7 | 5876 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
5877 | |
5878 | kfree(thinkpad_id.bios_version_str); | |
5879 | kfree(thinkpad_id.ec_version_str); | |
5880 | kfree(thinkpad_id.model_str); | |
5881 | } | |
5882 | ||
f74a27d4 | 5883 | |
1def7115 | 5884 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
5885 | { |
5886 | int ret, i; | |
5887 | ||
8fef502e HMH |
5888 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
5889 | ||
ff80f137 HMH |
5890 | /* Parameter checking */ |
5891 | if (hotkey_report_mode > 2) | |
5892 | return -EINVAL; | |
5893 | ||
54ae1501 | 5894 | /* Driver-level probe */ |
d5a2f2f1 HMH |
5895 | |
5896 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 5897 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
5898 | if (ret) { |
5899 | thinkpad_acpi_module_exit(); | |
5fba344c | 5900 | return ret; |
d5a2f2f1 | 5901 | } |
1da177e4 | 5902 | |
54ae1501 | 5903 | /* Driver initialization */ |
d5a2f2f1 | 5904 | |
e0c7dfe7 HMH |
5905 | TPACPI_ACPIHANDLE_INIT(ecrd); |
5906 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 5907 | |
e0c7dfe7 | 5908 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 5909 | if (!proc_dir) { |
35ff8b9f HMH |
5910 | printk(TPACPI_ERR |
5911 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 5912 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5913 | return -ENODEV; |
5914 | } | |
5915 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 5916 | |
54ae1501 HMH |
5917 | ret = platform_driver_register(&tpacpi_pdriver); |
5918 | if (ret) { | |
35ff8b9f HMH |
5919 | printk(TPACPI_ERR |
5920 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
5921 | thinkpad_acpi_module_exit(); |
5922 | return ret; | |
5923 | } | |
ac36393d HMH |
5924 | tp_features.platform_drv_registered = 1; |
5925 | ||
7fd40029 HMH |
5926 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
5927 | if (ret) { | |
35ff8b9f HMH |
5928 | printk(TPACPI_ERR |
5929 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
5930 | thinkpad_acpi_module_exit(); |
5931 | return ret; | |
5932 | } | |
5933 | tp_features.sensors_pdrv_registered = 1; | |
5934 | ||
176750d6 | 5935 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
5936 | if (!ret) { |
5937 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
5938 | ret = tpacpi_create_driver_attributes( |
5939 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 5940 | } |
176750d6 | 5941 | if (ret) { |
35ff8b9f HMH |
5942 | printk(TPACPI_ERR |
5943 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
5944 | thinkpad_acpi_module_exit(); |
5945 | return ret; | |
5946 | } | |
2369cc94 | 5947 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 5948 | |
54ae1501 HMH |
5949 | |
5950 | /* Device initialization */ | |
e0c7dfe7 | 5951 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
5952 | NULL, 0); |
5953 | if (IS_ERR(tpacpi_pdev)) { | |
5954 | ret = PTR_ERR(tpacpi_pdev); | |
5955 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 5956 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
5957 | thinkpad_acpi_module_exit(); |
5958 | return ret; | |
5959 | } | |
7fd40029 | 5960 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
5961 | TPACPI_HWMON_DRVR_NAME, |
5962 | -1, NULL, 0); | |
7fd40029 HMH |
5963 | if (IS_ERR(tpacpi_sensors_pdev)) { |
5964 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
5965 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
5966 | printk(TPACPI_ERR |
5967 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
5968 | thinkpad_acpi_module_exit(); |
5969 | return ret; | |
5970 | } | |
5971 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
5972 | &dev_attr_thinkpad_acpi_pdev_name); | |
5973 | if (ret) { | |
e0c7dfe7 | 5974 | printk(TPACPI_ERR |
35ff8b9f | 5975 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
5976 | thinkpad_acpi_module_exit(); |
5977 | return ret; | |
5978 | } | |
5979 | tp_features.sensors_pdev_attrs_registered = 1; | |
5980 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
5981 | if (IS_ERR(tpacpi_hwmon)) { |
5982 | ret = PTR_ERR(tpacpi_hwmon); | |
5983 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 5984 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
5985 | thinkpad_acpi_module_exit(); |
5986 | return ret; | |
5987 | } | |
8523ed6f | 5988 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
5989 | tpacpi_inputdev = input_allocate_device(); |
5990 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 5991 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
5992 | thinkpad_acpi_module_exit(); |
5993 | return -ENOMEM; | |
5994 | } else { | |
5995 | /* Prepare input device, but don't register */ | |
5996 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 5997 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 5998 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
5999 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6000 | thinkpad_id.vendor : | |
6001 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6002 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6003 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6004 | } | |
a5763f22 HMH |
6005 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6006 | ret = ibm_init(&ibms_init[i]); | |
6007 | if (ret >= 0 && *ibms_init[i].param) | |
6008 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6009 | if (ret < 0) { |
1def7115 | 6010 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6011 | return ret; |
6012 | } | |
6013 | } | |
7f5d1cd6 HMH |
6014 | ret = input_register_device(tpacpi_inputdev); |
6015 | if (ret < 0) { | |
e0c7dfe7 | 6016 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6017 | thinkpad_acpi_module_exit(); |
6018 | return ret; | |
6019 | } else { | |
6020 | tp_features.input_device_registered = 1; | |
6021 | } | |
1da177e4 | 6022 | |
8fef502e | 6023 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6024 | return 0; |
6025 | } | |
6026 | ||
f68080f8 HMH |
6027 | /* Please remove this in year 2009 */ |
6028 | MODULE_ALIAS("ibm_acpi"); | |
6029 | ||
6030 | /* | |
6031 | * DMI matching for module autoloading | |
6032 | * | |
6033 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6034 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6035 | * | |
6036 | * Only models listed in thinkwiki will be supported, so add yours | |
6037 | * if it is not there yet. | |
6038 | */ | |
6039 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6040 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6041 | ||
6042 | /* Non-ancient thinkpads */ | |
6043 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6044 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6045 | ||
6046 | /* Ancient thinkpad BIOSes have to be identified by | |
6047 | * BIOS type or model number, and there are far less | |
6048 | * BIOS types than model numbers... */ | |
6049 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6050 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6051 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6052 | ||
6053 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6054 | MODULE_DESCRIPTION(TPACPI_DESC); |
6055 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6056 | MODULE_LICENSE("GPL"); |
6057 | ||
1def7115 HMH |
6058 | module_init(thinkpad_acpi_module_init); |
6059 | module_exit(thinkpad_acpi_module_exit); |