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> |
6a2e293c | 6 | * Copyright (C) 2006-2008 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
1cee5cce | 24 | #define TPACPI_VERSION "0.19" |
50ebec09 | 25 | #define TPACPI_SYSFS_VERSION 0x020200 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
4fa6811b | 70 | #include <linux/leds.h> |
0c78039f HMH |
71 | #include <asm/uaccess.h> |
72 | ||
73 | #include <linux/dmi.h> | |
74 | #include <linux/jiffies.h> | |
75 | #include <linux/workqueue.h> | |
76 | ||
77 | #include <acpi/acpi_drivers.h> | |
78 | #include <acpi/acnamesp.h> | |
79 | ||
80 | #include <linux/pci_ids.h> | |
81 | ||
0c78039f HMH |
82 | |
83 | /* ThinkPad CMOS commands */ | |
84 | #define TP_CMOS_VOLUME_DOWN 0 | |
85 | #define TP_CMOS_VOLUME_UP 1 | |
86 | #define TP_CMOS_VOLUME_MUTE 2 | |
87 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
88 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
89 | #define TP_CMOS_THINKLIGHT_ON 12 |
90 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
91 | |
92 | /* NVRAM Addresses */ | |
93 | enum tp_nvram_addr { | |
94 | TP_NVRAM_ADDR_HK2 = 0x57, | |
95 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
96 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
97 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
98 | TP_NVRAM_ADDR_MIXER = 0x60, | |
99 | }; | |
100 | ||
101 | /* NVRAM bit masks */ | |
102 | enum { | |
103 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
104 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
105 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
106 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
107 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
108 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
109 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
110 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
111 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
112 | TP_NVRAM_MASK_MUTE = 0x40, | |
113 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
114 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
115 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
116 | }; | |
117 | ||
b21a15f6 | 118 | /* ACPI HIDs */ |
e0c7dfe7 | 119 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
120 | |
121 | /* Input IDs */ | |
122 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
123 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
124 | ||
125 | ||
126 | /**************************************************************************** | |
127 | * Main driver | |
128 | */ | |
129 | ||
e0c7dfe7 HMH |
130 | #define TPACPI_NAME "thinkpad" |
131 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
132 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
133 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
134 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 135 | |
e0c7dfe7 HMH |
136 | #define TPACPI_PROC_DIR "ibm" |
137 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
138 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 139 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 140 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 141 | |
95e57ab2 HMH |
142 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
143 | ||
e0c7dfe7 | 144 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 145 | |
0c78039f | 146 | /* Debugging */ |
e0c7dfe7 HMH |
147 | #define TPACPI_LOG TPACPI_FILE ": " |
148 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
149 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
150 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
151 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 152 | |
0c78039f HMH |
153 | #define TPACPI_DBG_ALL 0xffff |
154 | #define TPACPI_DBG_ALL 0xffff | |
155 | #define TPACPI_DBG_INIT 0x0001 | |
156 | #define TPACPI_DBG_EXIT 0x0002 | |
157 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
158 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
159 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
160 | } while (0) | |
0c78039f HMH |
161 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
162 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
163 | dbg_printk(a_dbg_level, format, ## arg) | |
164 | static const char *str_supported(int is_supported); | |
165 | #else | |
166 | #define vdbg_printk(a_dbg_level, format, arg...) | |
167 | #endif | |
168 | ||
35ff8b9f HMH |
169 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
170 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
171 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 172 | |
0c78039f HMH |
173 | |
174 | /**************************************************************************** | |
b21a15f6 | 175 | * Driver-wide structs and misc. variables |
0c78039f HMH |
176 | */ |
177 | ||
178 | struct ibm_struct; | |
179 | ||
180 | struct tp_acpi_drv_struct { | |
181 | const struct acpi_device_id *hid; | |
182 | struct acpi_driver *driver; | |
183 | ||
184 | void (*notify) (struct ibm_struct *, u32); | |
185 | acpi_handle *handle; | |
186 | u32 type; | |
187 | struct acpi_device *device; | |
188 | }; | |
189 | ||
190 | struct ibm_struct { | |
191 | char *name; | |
192 | ||
193 | int (*read) (char *); | |
194 | int (*write) (char *); | |
195 | void (*exit) (void); | |
196 | void (*resume) (void); | |
083f1760 | 197 | void (*suspend) (pm_message_t state); |
0c78039f HMH |
198 | |
199 | struct list_head all_drivers; | |
200 | ||
201 | struct tp_acpi_drv_struct *acpi; | |
202 | ||
203 | struct { | |
204 | u8 acpi_driver_registered:1; | |
205 | u8 acpi_notify_installed:1; | |
206 | u8 proc_created:1; | |
207 | u8 init_called:1; | |
208 | u8 experimental:1; | |
209 | } flags; | |
210 | }; | |
211 | ||
212 | struct ibm_init_struct { | |
213 | char param[32]; | |
214 | ||
215 | int (*init) (struct ibm_init_struct *); | |
216 | struct ibm_struct *data; | |
217 | }; | |
218 | ||
219 | static struct { | |
220 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
221 | u32 bay_status:1; | |
222 | u32 bay_eject:1; | |
223 | u32 bay_status2:1; | |
224 | u32 bay_eject2:1; | |
225 | #endif | |
226 | u32 bluetooth:1; | |
227 | u32 hotkey:1; | |
228 | u32 hotkey_mask:1; | |
229 | u32 hotkey_wlsw:1; | |
6c231bd5 | 230 | u32 hotkey_tablet:1; |
0c78039f HMH |
231 | u32 light:1; |
232 | u32 light_status:1; | |
233 | u32 bright_16levels:1; | |
b5972796 | 234 | u32 bright_acpimode:1; |
0c78039f HMH |
235 | u32 wan:1; |
236 | u32 fan_ctrl_status_undef:1; | |
237 | u32 input_device_registered:1; | |
238 | u32 platform_drv_registered:1; | |
239 | u32 platform_drv_attrs_registered:1; | |
240 | u32 sensors_pdrv_registered:1; | |
241 | u32 sensors_pdrv_attrs_registered:1; | |
242 | u32 sensors_pdev_attrs_registered:1; | |
243 | u32 hotkey_poll_active:1; | |
244 | } tp_features; | |
245 | ||
92889022 HMH |
246 | static struct { |
247 | u16 hotkey_mask_ff:1; | |
2d5e94d7 | 248 | u16 bright_cmos_ec_unsync:1; |
92889022 HMH |
249 | } tp_warned; |
250 | ||
0c78039f HMH |
251 | struct thinkpad_id_data { |
252 | unsigned int vendor; /* ThinkPad vendor: | |
253 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
254 | ||
255 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
256 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
257 | ||
258 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
259 | u16 ec_model; | |
260 | ||
8c74adbc HMH |
261 | char *model_str; /* ThinkPad T43 */ |
262 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 263 | }; |
0c78039f HMH |
264 | static struct thinkpad_id_data thinkpad_id; |
265 | ||
8fef502e HMH |
266 | static enum { |
267 | TPACPI_LIFE_INIT = 0, | |
268 | TPACPI_LIFE_RUNNING, | |
269 | TPACPI_LIFE_EXITING, | |
270 | } tpacpi_lifecycle; | |
271 | ||
b21a15f6 HMH |
272 | static int experimental; |
273 | static u32 dbg_level; | |
274 | ||
4fa6811b HMH |
275 | /* Special LED class that can defer work */ |
276 | struct tpacpi_led_classdev { | |
277 | struct led_classdev led_classdev; | |
278 | struct work_struct work; | |
279 | enum led_brightness new_brightness; | |
280 | }; | |
281 | ||
56b6aeb0 HMH |
282 | /**************************************************************************** |
283 | **************************************************************************** | |
284 | * | |
285 | * ACPI Helpers and device model | |
286 | * | |
287 | **************************************************************************** | |
288 | ****************************************************************************/ | |
289 | ||
290 | /************************************************************************* | |
291 | * ACPI basic handles | |
292 | */ | |
1da177e4 | 293 | |
94954cc6 | 294 | static acpi_handle root_handle; |
1da177e4 | 295 | |
e0c7dfe7 | 296 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
297 | static acpi_handle object##_handle; \ |
298 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 299 | static char *object##_path; \ |
1da177e4 LT |
300 | static char *object##_paths[] = { paths } |
301 | ||
e0c7dfe7 | 302 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
303 | "\\_SB.PCI.ISA.EC", /* 570 */ |
304 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
305 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
306 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
307 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
308 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 309 | ); |
78f81cc4 | 310 | |
e0c7dfe7 HMH |
311 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
312 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 313 | |
35ff8b9f HMH |
314 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
315 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
316 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
317 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 318 | ); /* all others */ |
78f81cc4 | 319 | |
e0c7dfe7 | 320 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
321 | "^HKEY", /* R30, R31 */ |
322 | "HKEY", /* all others */ | |
56b6aeb0 | 323 | ); /* 570 */ |
78f81cc4 | 324 | |
d7c1d17d HMH |
325 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
326 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
327 | "\\_SB.PCI0.VID0", /* 770e */ | |
328 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
329 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
330 | ); /* R30, R31 */ | |
331 | ||
78f81cc4 | 332 | |
56b6aeb0 HMH |
333 | /************************************************************************* |
334 | * ACPI helpers | |
a8b7a662 HMH |
335 | */ |
336 | ||
1da177e4 LT |
337 | static int acpi_evalf(acpi_handle handle, |
338 | void *res, char *method, char *fmt, ...) | |
339 | { | |
340 | char *fmt0 = fmt; | |
78f81cc4 | 341 | struct acpi_object_list params; |
e0c7dfe7 | 342 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
343 | struct acpi_buffer result, *resultp; |
344 | union acpi_object out_obj; | |
345 | acpi_status status; | |
346 | va_list ap; | |
347 | char res_type; | |
348 | int success; | |
349 | int quiet; | |
1da177e4 LT |
350 | |
351 | if (!*fmt) { | |
e0c7dfe7 | 352 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
353 | return 0; |
354 | } | |
355 | ||
356 | if (*fmt == 'q') { | |
357 | quiet = 1; | |
358 | fmt++; | |
359 | } else | |
360 | quiet = 0; | |
361 | ||
362 | res_type = *(fmt++); | |
363 | ||
364 | params.count = 0; | |
365 | params.pointer = &in_objs[0]; | |
366 | ||
367 | va_start(ap, fmt); | |
368 | while (*fmt) { | |
369 | char c = *(fmt++); | |
370 | switch (c) { | |
371 | case 'd': /* int */ | |
372 | in_objs[params.count].integer.value = va_arg(ap, int); | |
373 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
374 | break; | |
78f81cc4 | 375 | /* add more types as needed */ |
1da177e4 | 376 | default: |
e0c7dfe7 | 377 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
378 | "with invalid format character '%c'\n", c); |
379 | return 0; | |
380 | } | |
381 | } | |
382 | va_end(ap); | |
383 | ||
78f81cc4 BD |
384 | if (res_type != 'v') { |
385 | result.length = sizeof(out_obj); | |
386 | result.pointer = &out_obj; | |
387 | resultp = &result; | |
388 | } else | |
389 | resultp = NULL; | |
1da177e4 | 390 | |
78f81cc4 | 391 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
392 | |
393 | switch (res_type) { | |
78f81cc4 | 394 | case 'd': /* int */ |
1da177e4 LT |
395 | if (res) |
396 | *(int *)res = out_obj.integer.value; | |
397 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
398 | break; | |
78f81cc4 | 399 | case 'v': /* void */ |
1da177e4 LT |
400 | success = status == AE_OK; |
401 | break; | |
78f81cc4 | 402 | /* add more types as needed */ |
1da177e4 | 403 | default: |
e0c7dfe7 | 404 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
405 | "with invalid format character '%c'\n", res_type); |
406 | return 0; | |
407 | } | |
408 | ||
56b6aeb0 | 409 | if (!success && !quiet) |
e0c7dfe7 | 410 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
411 | method, fmt0, status); |
412 | ||
413 | return success; | |
414 | } | |
415 | ||
35ff8b9f | 416 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
417 | { |
418 | int v; | |
419 | ||
420 | if (ecrd_handle) { | |
421 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
422 | return 0; | |
423 | *p = v; | |
424 | } else { | |
425 | if (ec_read(i, p) < 0) | |
426 | return 0; | |
427 | } | |
428 | ||
429 | return 1; | |
430 | } | |
431 | ||
432 | static int acpi_ec_write(int i, u8 v) | |
433 | { | |
434 | if (ecwr_handle) { | |
435 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
436 | return 0; | |
437 | } else { | |
438 | if (ec_write(i, v) < 0) | |
439 | return 0; | |
440 | } | |
441 | ||
442 | return 1; | |
443 | } | |
444 | ||
013c40e4 | 445 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
446 | static int _sta(acpi_handle handle) |
447 | { | |
448 | int status; | |
449 | ||
450 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
451 | status = 0; | |
452 | ||
453 | return status; | |
454 | } | |
013c40e4 | 455 | #endif |
56b6aeb0 | 456 | |
c9bea99c HMH |
457 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
458 | { | |
459 | if (!cmos_handle) | |
460 | return -ENXIO; | |
461 | ||
462 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
463 | return -EIO; | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
56b6aeb0 HMH |
468 | /************************************************************************* |
469 | * ACPI device model | |
470 | */ | |
471 | ||
35ff8b9f HMH |
472 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
473 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
474 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
475 | ||
8d376cd6 | 476 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
477 | acpi_handle *handle, acpi_handle parent, |
478 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
479 | { |
480 | int i; | |
481 | acpi_status status; | |
482 | ||
5ae930e6 HMH |
483 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
484 | name); | |
485 | ||
56b6aeb0 HMH |
486 | for (i = 0; i < num_paths; i++) { |
487 | status = acpi_get_handle(parent, paths[i], handle); | |
488 | if (ACPI_SUCCESS(status)) { | |
489 | *path = paths[i]; | |
5ae930e6 HMH |
490 | dbg_printk(TPACPI_DBG_INIT, |
491 | "Found ACPI handle %s for %s\n", | |
492 | *path, name); | |
56b6aeb0 HMH |
493 | return; |
494 | } | |
495 | } | |
496 | ||
5ae930e6 HMH |
497 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
498 | name); | |
56b6aeb0 HMH |
499 | *handle = NULL; |
500 | } | |
501 | ||
8d376cd6 | 502 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
503 | { |
504 | struct ibm_struct *ibm = data; | |
505 | ||
8fef502e HMH |
506 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
507 | return; | |
508 | ||
8d376cd6 | 509 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
510 | return; |
511 | ||
8d376cd6 | 512 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
513 | } |
514 | ||
8d376cd6 | 515 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
516 | { |
517 | acpi_status status; | |
5ae930e6 | 518 | int rc; |
56b6aeb0 | 519 | |
8d376cd6 HMH |
520 | BUG_ON(!ibm->acpi); |
521 | ||
522 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
523 | return 0; |
524 | ||
5ae930e6 | 525 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
526 | "setting up ACPI notify for %s\n", ibm->name); |
527 | ||
5ae930e6 HMH |
528 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
529 | if (rc < 0) { | |
e0c7dfe7 | 530 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 531 | ibm->name, rc); |
56b6aeb0 HMH |
532 | return -ENODEV; |
533 | } | |
534 | ||
8d376cd6 HMH |
535 | acpi_driver_data(ibm->acpi->device) = ibm; |
536 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 537 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 538 | ibm->name); |
56b6aeb0 | 539 | |
8d376cd6 HMH |
540 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
541 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
542 | if (ACPI_FAILURE(status)) { |
543 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
544 | printk(TPACPI_NOTICE |
545 | "another device driver is already " | |
546 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 547 | } else { |
35ff8b9f HMH |
548 | printk(TPACPI_ERR |
549 | "acpi_install_notify_handler(%s) failed: %d\n", | |
550 | ibm->name, status); | |
56b6aeb0 HMH |
551 | } |
552 | return -ENODEV; | |
553 | } | |
8d376cd6 | 554 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
555 | return 0; |
556 | } | |
557 | ||
8d376cd6 | 558 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
559 | { |
560 | return 0; | |
561 | } | |
562 | ||
6700121b | 563 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 564 | { |
5ae930e6 | 565 | int rc; |
56b6aeb0 | 566 | |
fe08bc4b HMH |
567 | dbg_printk(TPACPI_DBG_INIT, |
568 | "registering %s as an ACPI driver\n", ibm->name); | |
569 | ||
8d376cd6 HMH |
570 | BUG_ON(!ibm->acpi); |
571 | ||
572 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
573 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 574 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 575 | return -ENOMEM; |
56b6aeb0 HMH |
576 | } |
577 | ||
e0c7dfe7 | 578 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 579 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 580 | |
8d376cd6 | 581 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 582 | |
5ae930e6 HMH |
583 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
584 | if (rc < 0) { | |
e0c7dfe7 | 585 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 586 | ibm->name, rc); |
8d376cd6 HMH |
587 | kfree(ibm->acpi->driver); |
588 | ibm->acpi->driver = NULL; | |
5ae930e6 | 589 | } else if (!rc) |
8d376cd6 | 590 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 591 | |
5ae930e6 | 592 | return rc; |
56b6aeb0 HMH |
593 | } |
594 | ||
595 | ||
596 | /**************************************************************************** | |
597 | **************************************************************************** | |
598 | * | |
599 | * Procfs Helpers | |
600 | * | |
601 | **************************************************************************** | |
602 | ****************************************************************************/ | |
603 | ||
8d376cd6 HMH |
604 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
605 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
606 | { |
607 | struct ibm_struct *ibm = data; | |
608 | int len; | |
609 | ||
610 | if (!ibm || !ibm->read) | |
611 | return -EINVAL; | |
612 | ||
613 | len = ibm->read(page); | |
614 | if (len < 0) | |
615 | return len; | |
616 | ||
617 | if (len <= off + count) | |
618 | *eof = 1; | |
619 | *start = page + off; | |
620 | len -= off; | |
621 | if (len > count) | |
622 | len = count; | |
623 | if (len < 0) | |
624 | len = 0; | |
625 | ||
626 | return len; | |
627 | } | |
628 | ||
8d376cd6 | 629 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 630 | const char __user *userbuf, |
8d376cd6 | 631 | unsigned long count, void *data) |
56b6aeb0 HMH |
632 | { |
633 | struct ibm_struct *ibm = data; | |
634 | char *kernbuf; | |
635 | int ret; | |
636 | ||
637 | if (!ibm || !ibm->write) | |
638 | return -EINVAL; | |
639 | ||
640 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
641 | if (!kernbuf) | |
642 | return -ENOMEM; | |
1da177e4 | 643 | |
56b6aeb0 HMH |
644 | if (copy_from_user(kernbuf, userbuf, count)) { |
645 | kfree(kernbuf); | |
646 | return -EFAULT; | |
647 | } | |
1da177e4 | 648 | |
56b6aeb0 HMH |
649 | kernbuf[count] = 0; |
650 | strcat(kernbuf, ","); | |
651 | ret = ibm->write(kernbuf); | |
652 | if (ret == 0) | |
653 | ret = count; | |
1da177e4 | 654 | |
56b6aeb0 HMH |
655 | kfree(kernbuf); |
656 | ||
657 | return ret; | |
1da177e4 LT |
658 | } |
659 | ||
660 | static char *next_cmd(char **cmds) | |
661 | { | |
662 | char *start = *cmds; | |
663 | char *end; | |
664 | ||
665 | while ((end = strchr(start, ',')) && end == start) | |
666 | start = end + 1; | |
667 | ||
668 | if (!end) | |
669 | return NULL; | |
670 | ||
671 | *end = 0; | |
672 | *cmds = end + 1; | |
673 | return start; | |
674 | } | |
675 | ||
56b6aeb0 | 676 | |
54ae1501 HMH |
677 | /**************************************************************************** |
678 | **************************************************************************** | |
679 | * | |
7f5d1cd6 | 680 | * Device model: input, hwmon and platform |
54ae1501 HMH |
681 | * |
682 | **************************************************************************** | |
683 | ****************************************************************************/ | |
684 | ||
94954cc6 | 685 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 686 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 687 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 688 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 689 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 690 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 691 | |
083f1760 HMH |
692 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
693 | pm_message_t state) | |
694 | { | |
695 | struct ibm_struct *ibm, *itmp; | |
696 | ||
697 | list_for_each_entry_safe(ibm, itmp, | |
698 | &tpacpi_all_drivers, | |
699 | all_drivers) { | |
700 | if (ibm->suspend) | |
701 | (ibm->suspend)(state); | |
702 | } | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
e295e850 HMH |
707 | static int tpacpi_resume_handler(struct platform_device *pdev) |
708 | { | |
709 | struct ibm_struct *ibm, *itmp; | |
710 | ||
711 | list_for_each_entry_safe(ibm, itmp, | |
712 | &tpacpi_all_drivers, | |
713 | all_drivers) { | |
714 | if (ibm->resume) | |
715 | (ibm->resume)(); | |
716 | } | |
717 | ||
718 | return 0; | |
719 | } | |
720 | ||
54ae1501 HMH |
721 | static struct platform_driver tpacpi_pdriver = { |
722 | .driver = { | |
e0c7dfe7 | 723 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
724 | .owner = THIS_MODULE, |
725 | }, | |
083f1760 | 726 | .suspend = tpacpi_suspend_handler, |
e295e850 | 727 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
728 | }; |
729 | ||
7fd40029 HMH |
730 | static struct platform_driver tpacpi_hwmon_pdriver = { |
731 | .driver = { | |
e0c7dfe7 | 732 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
733 | .owner = THIS_MODULE, |
734 | }, | |
735 | }; | |
54ae1501 | 736 | |
176750d6 | 737 | /************************************************************************* |
b21a15f6 | 738 | * sysfs support helpers |
176750d6 HMH |
739 | */ |
740 | ||
b21a15f6 HMH |
741 | struct attribute_set { |
742 | unsigned int members, max_members; | |
743 | struct attribute_group group; | |
176750d6 HMH |
744 | }; |
745 | ||
7252374a HMH |
746 | struct attribute_set_obj { |
747 | struct attribute_set s; | |
748 | struct attribute *a; | |
749 | } __attribute__((packed)); | |
750 | ||
751 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 752 | const char *name) |
7252374a HMH |
753 | { |
754 | struct attribute_set_obj *sobj; | |
755 | ||
756 | if (max_members == 0) | |
757 | return NULL; | |
758 | ||
759 | /* Allocates space for implicit NULL at the end too */ | |
760 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
761 | max_members * sizeof(struct attribute *), | |
762 | GFP_KERNEL); | |
763 | if (!sobj) | |
764 | return NULL; | |
765 | sobj->s.max_members = max_members; | |
766 | sobj->s.group.attrs = &sobj->a; | |
767 | sobj->s.group.name = name; | |
768 | ||
769 | return &sobj->s; | |
770 | } | |
771 | ||
f74a27d4 HMH |
772 | #define destroy_attr_set(_set) \ |
773 | kfree(_set); | |
774 | ||
7252374a | 775 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 776 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
777 | { |
778 | if (!s || !attr) | |
779 | return -EINVAL; | |
780 | ||
781 | if (s->members >= s->max_members) | |
782 | return -ENOMEM; | |
783 | ||
784 | s->group.attrs[s->members] = attr; | |
785 | s->members++; | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
35ff8b9f | 790 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
791 | struct attribute **attr, |
792 | unsigned int count) | |
793 | { | |
794 | int i, res; | |
795 | ||
796 | for (i = 0; i < count; i++) { | |
797 | res = add_to_attr_set(s, attr[i]); | |
798 | if (res) | |
799 | return res; | |
800 | } | |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
35ff8b9f | 805 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
806 | { |
807 | sysfs_remove_group(kobj, &s->group); | |
808 | destroy_attr_set(s); | |
809 | } | |
810 | ||
f74a27d4 HMH |
811 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
812 | sysfs_create_group(_kobj, &_attr_set->group) | |
813 | ||
7252374a HMH |
814 | static int parse_strtoul(const char *buf, |
815 | unsigned long max, unsigned long *value) | |
816 | { | |
817 | char *endp; | |
818 | ||
32afbf07 HMH |
819 | while (*buf && isspace(*buf)) |
820 | buf++; | |
7252374a HMH |
821 | *value = simple_strtoul(buf, &endp, 0); |
822 | while (*endp && isspace(*endp)) | |
823 | endp++; | |
824 | if (*endp || *value > max) | |
825 | return -EINVAL; | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
b5972796 HMH |
830 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
831 | { | |
832 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
833 | union acpi_object *obj; | |
834 | int rc; | |
835 | ||
836 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
837 | obj = (union acpi_object *)buffer.pointer; | |
838 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
839 | printk(TPACPI_ERR "Unknown _BCL data, " | |
840 | "please report this to %s\n", TPACPI_MAIL); | |
841 | rc = 0; | |
842 | } else { | |
843 | rc = obj->package.count; | |
844 | } | |
845 | } else { | |
846 | return 0; | |
847 | } | |
848 | ||
849 | kfree(buffer.pointer); | |
850 | return rc; | |
851 | } | |
852 | ||
853 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
854 | u32 lvl, void *context, void **rv) | |
855 | { | |
856 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
857 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
858 | ||
859 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
860 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
861 | BUG_ON(!rv || !*rv); | |
862 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
863 | return AE_CTRL_TERMINATE; | |
864 | } else { | |
865 | return AE_OK; | |
866 | } | |
867 | } | |
868 | ||
869 | /* | |
870 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
871 | */ | |
872 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
873 | { | |
874 | int status; | |
875 | int bcl_levels = 0; | |
876 | void *bcl_ptr = &bcl_levels; | |
877 | ||
878 | if (!vid_handle) { | |
879 | TPACPI_ACPIHANDLE_INIT(vid); | |
880 | } | |
881 | if (!vid_handle) | |
882 | return 0; | |
883 | ||
884 | /* | |
885 | * Search for a _BCL method, and execute it. This is safe on all | |
886 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
887 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
888 | * about calling the _BCL method in an enabled video device, any | |
889 | * will do for our purposes. | |
890 | */ | |
891 | ||
892 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
893 | tpacpi_acpi_walk_find_bcl, NULL, | |
894 | &bcl_ptr); | |
895 | ||
896 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
897 | tp_features.bright_acpimode = 1; | |
898 | return (bcl_levels - 2); | |
899 | } | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
56b6aeb0 | 904 | /************************************************************************* |
b21a15f6 | 905 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
906 | */ |
907 | ||
b21a15f6 HMH |
908 | /* interface_version --------------------------------------------------- */ |
909 | static ssize_t tpacpi_driver_interface_version_show( | |
910 | struct device_driver *drv, | |
911 | char *buf) | |
1da177e4 | 912 | { |
b21a15f6 HMH |
913 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
914 | } | |
915 | ||
916 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
917 | tpacpi_driver_interface_version_show, NULL); | |
918 | ||
919 | /* debug_level --------------------------------------------------------- */ | |
920 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
921 | char *buf) | |
922 | { | |
923 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
924 | } | |
925 | ||
926 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
927 | const char *buf, size_t count) | |
928 | { | |
929 | unsigned long t; | |
930 | ||
931 | if (parse_strtoul(buf, 0xffff, &t)) | |
932 | return -EINVAL; | |
933 | ||
934 | dbg_level = t; | |
935 | ||
936 | return count; | |
937 | } | |
938 | ||
939 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
940 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
941 | ||
942 | /* version ------------------------------------------------------------- */ | |
943 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
944 | char *buf) | |
945 | { | |
35ff8b9f HMH |
946 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
947 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
948 | } |
949 | ||
950 | static DRIVER_ATTR(version, S_IRUGO, | |
951 | tpacpi_driver_version_show, NULL); | |
952 | ||
953 | /* --------------------------------------------------------------------- */ | |
954 | ||
35ff8b9f | 955 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
956 | &driver_attr_debug_level, &driver_attr_version, |
957 | &driver_attr_interface_version, | |
958 | }; | |
959 | ||
960 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
961 | { | |
962 | int i, res; | |
963 | ||
964 | i = 0; | |
965 | res = 0; | |
966 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
967 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
968 | i++; | |
969 | } | |
970 | ||
971 | return res; | |
972 | } | |
973 | ||
974 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
975 | { | |
976 | int i; | |
977 | ||
35ff8b9f | 978 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
979 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
980 | } | |
981 | ||
982 | /**************************************************************************** | |
983 | **************************************************************************** | |
984 | * | |
985 | * Subdrivers | |
986 | * | |
987 | **************************************************************************** | |
988 | ****************************************************************************/ | |
989 | ||
990 | /************************************************************************* | |
991 | * thinkpad-acpi init subdriver | |
992 | */ | |
993 | ||
994 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
995 | { | |
e0c7dfe7 HMH |
996 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
997 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 998 | |
e0c7dfe7 | 999 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1000 | (thinkpad_id.bios_version_str) ? |
1001 | thinkpad_id.bios_version_str : "unknown", | |
1002 | (thinkpad_id.ec_version_str) ? | |
1003 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1004 | |
1005 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1006 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1007 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1008 | "IBM" : ((thinkpad_id.vendor == | |
1009 | PCI_VENDOR_ID_LENOVO) ? | |
1010 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1011 | thinkpad_id.model_str, |
1012 | (thinkpad_id.nummodel_str) ? | |
1013 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1014 | |
1da177e4 LT |
1015 | return 0; |
1016 | } | |
1017 | ||
643f12db | 1018 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1019 | { |
1020 | int len = 0; | |
1021 | ||
e0c7dfe7 HMH |
1022 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1023 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1024 | |
1025 | return len; | |
1026 | } | |
1027 | ||
a5763f22 HMH |
1028 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1029 | .name = "driver", | |
1030 | .read = thinkpad_acpi_driver_read, | |
1031 | }; | |
1032 | ||
56b6aeb0 HMH |
1033 | /************************************************************************* |
1034 | * Hotkey subdriver | |
1035 | */ | |
1036 | ||
f74a27d4 HMH |
1037 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1038 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1039 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1040 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1041 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1042 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1043 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1044 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1045 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1046 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1047 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1048 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1049 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1050 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1051 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1052 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1053 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1054 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1055 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1056 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1057 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1058 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1059 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1060 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1061 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1062 | }; | |
1063 | ||
01e88f25 HMH |
1064 | enum { /* Keys available through NVRAM polling */ |
1065 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1066 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1067 | }; | |
1068 | ||
1069 | enum { /* Positions of some of the keys in hotkey masks */ | |
1070 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1071 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1072 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1073 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1074 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1075 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1076 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1077 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1078 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1079 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1080 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1081 | }; | |
1082 | ||
1083 | enum { /* NVRAM to ACPI HKEY group map */ | |
1084 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1085 | TP_ACPI_HKEY_ZOOM_MASK | | |
1086 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1087 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1088 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1089 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1090 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1091 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1092 | TP_ACPI_HKEY_MUTE_MASK, | |
1093 | }; | |
1094 | ||
1095 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1096 | struct tp_nvram_state { | |
1097 | u16 thinkpad_toggle:1; | |
1098 | u16 zoom_toggle:1; | |
1099 | u16 display_toggle:1; | |
1100 | u16 thinklight_toggle:1; | |
1101 | u16 hibernate_toggle:1; | |
1102 | u16 displayexp_toggle:1; | |
1103 | u16 display_state:1; | |
1104 | u16 brightness_toggle:1; | |
1105 | u16 volume_toggle:1; | |
1106 | u16 mute:1; | |
1107 | ||
1108 | u8 brightness_level; | |
1109 | u8 volume_level; | |
1110 | }; | |
1111 | ||
1112 | static struct task_struct *tpacpi_hotkey_task; | |
1113 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1114 | static int hotkey_poll_freq = 10; /* Hz */ | |
1115 | static struct mutex hotkey_thread_mutex; | |
1116 | static struct mutex hotkey_thread_data_mutex; | |
1117 | static unsigned int hotkey_config_change; | |
1118 | ||
1119 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1120 | ||
1121 | #define hotkey_source_mask 0U | |
1122 | ||
1123 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1124 | ||
f74a27d4 HMH |
1125 | static struct mutex hotkey_mutex; |
1126 | ||
a713b4d7 HMH |
1127 | static enum { /* Reasons for waking up */ |
1128 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1129 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1130 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1131 | } hotkey_wakeup_reason; | |
1132 | ||
1133 | static int hotkey_autosleep_ack; | |
1134 | ||
78f81cc4 | 1135 | static int hotkey_orig_status; |
ae92bd17 | 1136 | static u32 hotkey_orig_mask; |
9b010de5 | 1137 | static u32 hotkey_all_mask; |
6a38abbf | 1138 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1139 | static u32 hotkey_mask; |
6a38abbf | 1140 | |
b21a15f6 HMH |
1141 | static unsigned int hotkey_report_mode; |
1142 | ||
edf0e0e5 | 1143 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1144 | |
94954cc6 | 1145 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1146 | |
01e88f25 HMH |
1147 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1148 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1149 | do { \ |
1150 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1151 | hotkey_config_change++; \ | |
1152 | } while (0); | |
01e88f25 HMH |
1153 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1154 | mutex_unlock(&hotkey_thread_data_mutex); | |
1155 | #else | |
1156 | #define HOTKEY_CONFIG_CRITICAL_START | |
1157 | #define HOTKEY_CONFIG_CRITICAL_END | |
1158 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1159 | ||
6c231bd5 HMH |
1160 | /* HKEY.MHKG() return bits */ |
1161 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1162 | ||
74941a69 HMH |
1163 | static int hotkey_get_wlsw(int *status) |
1164 | { | |
1165 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1166 | return -EIO; | |
1167 | return 0; | |
1168 | } | |
1169 | ||
6c231bd5 HMH |
1170 | static int hotkey_get_tablet_mode(int *status) |
1171 | { | |
1172 | int s; | |
1173 | ||
1174 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1175 | return -EIO; | |
1176 | ||
cee47f5a HMH |
1177 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1178 | return 0; | |
6c231bd5 HMH |
1179 | } |
1180 | ||
b2c985e7 HMH |
1181 | /* |
1182 | * Call with hotkey_mutex held | |
1183 | */ | |
1184 | static int hotkey_mask_get(void) | |
1185 | { | |
01e88f25 HMH |
1186 | u32 m = 0; |
1187 | ||
b2c985e7 | 1188 | if (tp_features.hotkey_mask) { |
01e88f25 | 1189 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1190 | return -EIO; |
1191 | } | |
01e88f25 | 1192 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1193 | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | /* | |
1198 | * Call with hotkey_mutex held | |
1199 | */ | |
1200 | static int hotkey_mask_set(u32 mask) | |
1201 | { | |
1202 | int i; | |
1203 | int rc = 0; | |
1204 | ||
1205 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1206 | if (!tp_warned.hotkey_mask_ff && |
1207 | (mask == 0xffff || mask == 0xffffff || | |
1208 | mask == 0xffffffff)) { | |
1209 | tp_warned.hotkey_mask_ff = 1; | |
1210 | printk(TPACPI_NOTICE | |
1211 | "setting the hotkey mask to 0x%08x is likely " | |
1212 | "not the best way to go about it\n", mask); | |
1213 | printk(TPACPI_NOTICE | |
1214 | "please consider using the driver defaults, " | |
1215 | "and refer to up-to-date thinkpad-acpi " | |
1216 | "documentation\n"); | |
1217 | } | |
1218 | ||
01e88f25 | 1219 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1220 | for (i = 0; i < 32; i++) { |
1221 | u32 m = 1 << i; | |
01e88f25 HMH |
1222 | /* enable in firmware mask only keys not in NVRAM |
1223 | * mode, but enable the key in the cached hotkey_mask | |
1224 | * regardless of mode, or the key will end up | |
1225 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1226 | if (!acpi_evalf(hkey_handle, |
1227 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1228 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1229 | rc = -EIO; |
1230 | break; | |
1231 | } else { | |
1232 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1233 | } | |
1234 | } | |
01e88f25 | 1235 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1236 | |
1237 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1238 | if (!hotkey_mask_get() && !rc && |
1239 | (hotkey_mask & ~hotkey_source_mask) != | |
1240 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1241 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1242 | "requested hot key mask 0x%08x, but " |
1243 | "firmware forced it to 0x%08x\n", | |
1244 | mask, hotkey_mask); | |
1245 | } | |
01e88f25 HMH |
1246 | } else { |
1247 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1248 | HOTKEY_CONFIG_CRITICAL_START | |
1249 | hotkey_mask = mask & hotkey_source_mask; | |
1250 | HOTKEY_CONFIG_CRITICAL_END | |
1251 | hotkey_mask_get(); | |
1252 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1253 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1254 | "requested hot key mask 0x%08x, " |
1255 | "forced to 0x%08x (NVRAM poll mask is " | |
1256 | "0x%08x): no firmware mask support\n", | |
1257 | mask, hotkey_mask, hotkey_source_mask); | |
1258 | } | |
1259 | #else | |
1260 | hotkey_mask_get(); | |
1261 | rc = -ENXIO; | |
1262 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1263 | } |
1264 | ||
1265 | return rc; | |
1266 | } | |
1267 | ||
1268 | static int hotkey_status_get(int *status) | |
1269 | { | |
1270 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1271 | return -EIO; | |
1272 | ||
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static int hotkey_status_set(int status) | |
1277 | { | |
1278 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1279 | return -EIO; | |
1280 | ||
1281 | return 0; | |
1282 | } | |
1283 | ||
b7c8c200 HMH |
1284 | static void tpacpi_input_send_radiosw(void) |
1285 | { | |
1286 | int wlsw; | |
1287 | ||
b7c8c200 | 1288 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
d147da73 HMH |
1289 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1290 | ||
b7c8c200 HMH |
1291 | input_report_switch(tpacpi_inputdev, |
1292 | SW_RADIO, !!wlsw); | |
1293 | input_sync(tpacpi_inputdev); | |
b7c8c200 | 1294 | |
d147da73 HMH |
1295 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
1296 | } | |
b7c8c200 HMH |
1297 | } |
1298 | ||
6c231bd5 | 1299 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1300 | { |
6c231bd5 | 1301 | int state; |
b3ec6f91 | 1302 | |
6c231bd5 HMH |
1303 | if (tp_features.hotkey_tablet && |
1304 | !hotkey_get_tablet_mode(&state)) { | |
1305 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1306 | |
6c231bd5 HMH |
1307 | input_report_switch(tpacpi_inputdev, |
1308 | SW_TABLET_MODE, !!state); | |
1309 | input_sync(tpacpi_inputdev); | |
1310 | ||
1311 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1312 | } | |
b3ec6f91 HMH |
1313 | } |
1314 | ||
b7c8c200 HMH |
1315 | static void tpacpi_input_send_key(unsigned int scancode) |
1316 | { | |
1317 | unsigned int keycode; | |
1318 | ||
1319 | keycode = hotkey_keycode_map[scancode]; | |
1320 | ||
1321 | if (keycode != KEY_RESERVED) { | |
1322 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1323 | ||
1324 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1325 | if (keycode == KEY_UNKNOWN) | |
1326 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1327 | scancode); | |
1328 | input_sync(tpacpi_inputdev); | |
1329 | ||
1330 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1331 | if (keycode == KEY_UNKNOWN) | |
1332 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1333 | scancode); | |
1334 | input_sync(tpacpi_inputdev); | |
1335 | ||
1336 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1337 | } | |
1338 | } | |
1339 | ||
01e88f25 HMH |
1340 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1341 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1342 | ||
1343 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1344 | { | |
1345 | tpacpi_input_send_key(scancode); | |
1346 | if (hotkey_report_mode < 2) { | |
1347 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1348 | 0x80, 0x1001 + scancode); | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1353 | { | |
1354 | u8 d; | |
1355 | ||
1356 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1357 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1358 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1359 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1360 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1361 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1362 | } | |
1363 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1364 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1365 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1366 | } | |
1367 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1368 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1369 | n->displayexp_toggle = | |
1370 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1371 | } | |
1372 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1373 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1374 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1375 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1376 | n->brightness_toggle = | |
1377 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1378 | } | |
1379 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1380 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1381 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1382 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1383 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1384 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1389 | do { \ |
1390 | if ((mask & (1 << __scancode)) && \ | |
1391 | oldn->__member != newn->__member) \ | |
1392 | tpacpi_hotkey_send_key(__scancode); \ | |
1393 | } while (0) | |
01e88f25 HMH |
1394 | |
1395 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1396 | do { if (mask & (1 << __scancode)) \ | |
1397 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1398 | ||
1399 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1400 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1401 | u32 mask) |
1402 | { | |
1403 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1404 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1405 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1406 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1407 | ||
1408 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1409 | ||
1410 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1411 | ||
1412 | /* handle volume */ | |
1413 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1414 | if (oldn->mute != newn->mute) { | |
1415 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1416 | } | |
1417 | if (oldn->volume_level > newn->volume_level) { | |
1418 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1419 | } else if (oldn->volume_level < newn->volume_level) { | |
1420 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1421 | } else if (oldn->mute == newn->mute) { | |
1422 | /* repeated key presses that didn't change state */ | |
1423 | if (newn->mute) { | |
1424 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1425 | } else if (newn->volume_level != 0) { | |
1426 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1427 | } else { | |
1428 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1429 | } | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | /* handle brightness */ | |
1434 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1435 | if (oldn->brightness_level < newn->brightness_level) { | |
1436 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1437 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1438 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1439 | } else { | |
1440 | /* repeated key presses that didn't change state */ | |
1441 | if (newn->brightness_level != 0) { | |
1442 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1443 | } else { | |
1444 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1445 | } | |
1446 | } | |
1447 | } | |
1448 | } | |
1449 | ||
1450 | #undef TPACPI_COMPARE_KEY | |
1451 | #undef TPACPI_MAY_SEND_KEY | |
1452 | ||
1453 | static int hotkey_kthread(void *data) | |
1454 | { | |
1455 | struct tp_nvram_state s[2]; | |
1456 | u32 mask; | |
1457 | unsigned int si, so; | |
1458 | unsigned long t; | |
1459 | unsigned int change_detector, must_reset; | |
1460 | ||
1461 | mutex_lock(&hotkey_thread_mutex); | |
1462 | ||
1463 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1464 | goto exit; | |
1465 | ||
1466 | set_freezable(); | |
1467 | ||
1468 | so = 0; | |
1469 | si = 1; | |
1470 | t = 0; | |
1471 | ||
1472 | /* Initial state for compares */ | |
1473 | mutex_lock(&hotkey_thread_data_mutex); | |
1474 | change_detector = hotkey_config_change; | |
1475 | mask = hotkey_source_mask & hotkey_mask; | |
1476 | mutex_unlock(&hotkey_thread_data_mutex); | |
1477 | hotkey_read_nvram(&s[so], mask); | |
1478 | ||
1479 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1480 | if (t == 0) | |
1481 | t = 1000/hotkey_poll_freq; | |
1482 | t = msleep_interruptible(t); | |
1483 | if (unlikely(kthread_should_stop())) | |
1484 | break; | |
1485 | must_reset = try_to_freeze(); | |
1486 | if (t > 0 && !must_reset) | |
1487 | continue; | |
1488 | ||
1489 | mutex_lock(&hotkey_thread_data_mutex); | |
1490 | if (must_reset || hotkey_config_change != change_detector) { | |
1491 | /* forget old state on thaw or config change */ | |
1492 | si = so; | |
1493 | t = 0; | |
1494 | change_detector = hotkey_config_change; | |
1495 | } | |
1496 | mask = hotkey_source_mask & hotkey_mask; | |
1497 | mutex_unlock(&hotkey_thread_data_mutex); | |
1498 | ||
1499 | if (likely(mask)) { | |
1500 | hotkey_read_nvram(&s[si], mask); | |
1501 | if (likely(si != so)) { | |
1502 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1503 | mask); |
01e88f25 HMH |
1504 | } |
1505 | } | |
1506 | ||
1507 | so = si; | |
1508 | si ^= 1; | |
1509 | } | |
1510 | ||
1511 | exit: | |
1512 | mutex_unlock(&hotkey_thread_mutex); | |
1513 | return 0; | |
1514 | } | |
1515 | ||
1516 | static void hotkey_poll_stop_sync(void) | |
1517 | { | |
1518 | if (tpacpi_hotkey_task) { | |
1519 | if (frozen(tpacpi_hotkey_task) || | |
1520 | freezing(tpacpi_hotkey_task)) | |
1521 | thaw_process(tpacpi_hotkey_task); | |
1522 | ||
1523 | kthread_stop(tpacpi_hotkey_task); | |
1524 | tpacpi_hotkey_task = NULL; | |
1525 | mutex_lock(&hotkey_thread_mutex); | |
1526 | /* at this point, the thread did exit */ | |
1527 | mutex_unlock(&hotkey_thread_mutex); | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | /* call with hotkey_mutex held */ | |
1532 | static void hotkey_poll_setup(int may_warn) | |
1533 | { | |
1534 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1535 | hotkey_poll_freq > 0 && | |
1536 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1537 | if (!tpacpi_hotkey_task) { | |
1538 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 1539 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
1540 | if (IS_ERR(tpacpi_hotkey_task)) { |
1541 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1542 | printk(TPACPI_ERR |
1543 | "could not create kernel thread " | |
01e88f25 HMH |
1544 | "for hotkey polling\n"); |
1545 | } | |
1546 | } | |
1547 | } else { | |
1548 | hotkey_poll_stop_sync(); | |
1549 | if (may_warn && | |
1550 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1551 | printk(TPACPI_NOTICE |
1552 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1553 | "which is currently disabled\n", |
1554 | hotkey_source_mask); | |
1555 | } | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | static void hotkey_poll_setup_safe(int may_warn) | |
1560 | { | |
1561 | mutex_lock(&hotkey_mutex); | |
1562 | hotkey_poll_setup(may_warn); | |
1563 | mutex_unlock(&hotkey_mutex); | |
1564 | } | |
1565 | ||
1bc6b9cd HMH |
1566 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1567 | ||
1568 | static void hotkey_poll_setup_safe(int __unused) | |
1569 | { | |
1570 | } | |
1571 | ||
1572 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1573 | ||
01e88f25 HMH |
1574 | static int hotkey_inputdev_open(struct input_dev *dev) |
1575 | { | |
1576 | switch (tpacpi_lifecycle) { | |
1577 | case TPACPI_LIFE_INIT: | |
1578 | /* | |
1579 | * hotkey_init will call hotkey_poll_setup_safe | |
1580 | * at the appropriate moment | |
1581 | */ | |
1582 | return 0; | |
1583 | case TPACPI_LIFE_EXITING: | |
1584 | return -EBUSY; | |
1585 | case TPACPI_LIFE_RUNNING: | |
1586 | hotkey_poll_setup_safe(0); | |
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1591 | BUG(); | |
1592 | return -EBUSY; | |
1593 | } | |
1594 | ||
1595 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1596 | { | |
1597 | /* disable hotkey polling when possible */ | |
1598 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1599 | hotkey_poll_setup_safe(0); | |
1600 | } | |
01e88f25 | 1601 | |
a0416420 HMH |
1602 | /* sysfs hotkey enable ------------------------------------------------- */ |
1603 | static ssize_t hotkey_enable_show(struct device *dev, | |
1604 | struct device_attribute *attr, | |
1605 | char *buf) | |
1606 | { | |
ae92bd17 | 1607 | int res, status; |
a0416420 | 1608 | |
b2c985e7 | 1609 | res = hotkey_status_get(&status); |
a0416420 HMH |
1610 | if (res) |
1611 | return res; | |
1612 | ||
1613 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1614 | } | |
1615 | ||
1616 | static ssize_t hotkey_enable_store(struct device *dev, | |
1617 | struct device_attribute *attr, | |
1618 | const char *buf, size_t count) | |
1619 | { | |
1620 | unsigned long t; | |
b2c985e7 | 1621 | int res; |
a0416420 HMH |
1622 | |
1623 | if (parse_strtoul(buf, 1, &t)) | |
1624 | return -EINVAL; | |
1625 | ||
b2c985e7 | 1626 | res = hotkey_status_set(t); |
a0416420 HMH |
1627 | |
1628 | return (res) ? res : count; | |
1629 | } | |
1630 | ||
1631 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1632 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1633 | hotkey_enable_show, hotkey_enable_store); |
1634 | ||
1635 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1636 | static ssize_t hotkey_mask_show(struct device *dev, | |
1637 | struct device_attribute *attr, | |
1638 | char *buf) | |
1639 | { | |
b2c985e7 | 1640 | int res; |
a0416420 | 1641 | |
b2c985e7 HMH |
1642 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1643 | return -ERESTARTSYS; | |
1644 | res = hotkey_mask_get(); | |
1645 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1646 | |
b2c985e7 HMH |
1647 | return (res)? |
1648 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1649 | } |
1650 | ||
1651 | static ssize_t hotkey_mask_store(struct device *dev, | |
1652 | struct device_attribute *attr, | |
1653 | const char *buf, size_t count) | |
1654 | { | |
1655 | unsigned long t; | |
b2c985e7 | 1656 | int res; |
a0416420 | 1657 | |
ae92bd17 | 1658 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1659 | return -EINVAL; |
1660 | ||
b2c985e7 HMH |
1661 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1662 | return -ERESTARTSYS; | |
1663 | ||
1664 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1665 | |
1666 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1667 | hotkey_poll_setup(1); | |
1668 | #endif | |
1669 | ||
b2c985e7 | 1670 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1671 | |
1672 | return (res) ? res : count; | |
1673 | } | |
1674 | ||
1675 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1676 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1677 | hotkey_mask_show, hotkey_mask_store); |
1678 | ||
1679 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1680 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1681 | struct device_attribute *attr, | |
1682 | char *buf) | |
1683 | { | |
1684 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1685 | } | |
1686 | ||
1687 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1688 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1689 | |
1690 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1691 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1692 | struct device_attribute *attr, | |
1693 | char *buf) | |
1694 | { | |
ae92bd17 | 1695 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1696 | } |
1697 | ||
1698 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1699 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1700 | |
9b010de5 HMH |
1701 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1702 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1703 | struct device_attribute *attr, | |
1704 | char *buf) | |
1705 | { | |
01e88f25 HMH |
1706 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1707 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1708 | } |
1709 | ||
1710 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1711 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1712 | ||
1713 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1714 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1715 | struct device_attribute *attr, | |
1716 | char *buf) | |
1717 | { | |
1718 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1719 | (hotkey_all_mask | hotkey_source_mask) |
1720 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1721 | } |
1722 | ||
1723 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1724 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1725 | hotkey_recommended_mask_show, NULL); | |
1726 | ||
01e88f25 HMH |
1727 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1728 | ||
1729 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1730 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1731 | struct device_attribute *attr, | |
1732 | char *buf) | |
1733 | { | |
1734 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1735 | } | |
1736 | ||
1737 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1738 | struct device_attribute *attr, | |
1739 | const char *buf, size_t count) | |
1740 | { | |
1741 | unsigned long t; | |
1742 | ||
1743 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1744 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1745 | return -EINVAL; | |
1746 | ||
1747 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1748 | return -ERESTARTSYS; | |
1749 | ||
1750 | HOTKEY_CONFIG_CRITICAL_START | |
1751 | hotkey_source_mask = t; | |
1752 | HOTKEY_CONFIG_CRITICAL_END | |
1753 | ||
1754 | hotkey_poll_setup(1); | |
1755 | ||
1756 | mutex_unlock(&hotkey_mutex); | |
1757 | ||
1758 | return count; | |
1759 | } | |
1760 | ||
1761 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1762 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1763 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1764 | ||
1765 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1766 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1767 | struct device_attribute *attr, | |
1768 | char *buf) | |
1769 | { | |
1770 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1771 | } | |
1772 | ||
1773 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1774 | struct device_attribute *attr, | |
1775 | const char *buf, size_t count) | |
1776 | { | |
1777 | unsigned long t; | |
1778 | ||
1779 | if (parse_strtoul(buf, 25, &t)) | |
1780 | return -EINVAL; | |
1781 | ||
1782 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1783 | return -ERESTARTSYS; | |
1784 | ||
1785 | hotkey_poll_freq = t; | |
1786 | ||
1787 | hotkey_poll_setup(1); | |
1788 | mutex_unlock(&hotkey_mutex); | |
1789 | ||
1790 | return count; | |
1791 | } | |
1792 | ||
1793 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1794 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1795 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1796 | ||
1797 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1798 | ||
50ebec09 | 1799 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1800 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1801 | struct device_attribute *attr, | |
1802 | char *buf) | |
1803 | { | |
1804 | int res, s; | |
1805 | res = hotkey_get_wlsw(&s); | |
1806 | if (res < 0) | |
1807 | return res; | |
1808 | ||
1809 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1810 | } | |
1811 | ||
1812 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1813 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1814 | ||
50ebec09 HMH |
1815 | static void hotkey_radio_sw_notify_change(void) |
1816 | { | |
1817 | if (tp_features.hotkey_wlsw) | |
1818 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1819 | "hotkey_radio_sw"); | |
1820 | } | |
1821 | ||
6c231bd5 HMH |
1822 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
1823 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
1824 | struct device_attribute *attr, | |
1825 | char *buf) | |
1826 | { | |
1827 | int res, s; | |
1828 | res = hotkey_get_tablet_mode(&s); | |
1829 | if (res < 0) | |
1830 | return res; | |
1831 | ||
1832 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1833 | } | |
1834 | ||
1835 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
1836 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
1837 | ||
1838 | static void hotkey_tablet_mode_notify_change(void) | |
1839 | { | |
1840 | if (tp_features.hotkey_tablet) | |
1841 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1842 | "hotkey_tablet_mode"); | |
1843 | } | |
1844 | ||
ff80f137 HMH |
1845 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1846 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1847 | struct device_attribute *attr, | |
1848 | char *buf) | |
1849 | { | |
1850 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1851 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1852 | } | |
1853 | ||
1854 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1855 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1856 | ||
50ebec09 | 1857 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
1858 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
1859 | struct device_attribute *attr, | |
1860 | char *buf) | |
1861 | { | |
1862 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
1863 | } | |
1864 | ||
1865 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
1866 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
1867 | ||
1d5a2b54 | 1868 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
1869 | { |
1870 | if (tp_features.hotkey_mask) | |
1871 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1872 | "wakeup_reason"); | |
1873 | } | |
1874 | ||
1875 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
1876 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
1877 | struct device_attribute *attr, | |
1878 | char *buf) | |
1879 | { | |
1880 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
1881 | } | |
1882 | ||
1883 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
1884 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
1885 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
1886 | ||
1d5a2b54 | 1887 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
1888 | { |
1889 | if (tp_features.hotkey_mask) | |
1890 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1891 | "wakeup_hotunplug_complete"); | |
1892 | } | |
1893 | ||
a0416420 HMH |
1894 | /* --------------------------------------------------------------------- */ |
1895 | ||
ff80f137 HMH |
1896 | static struct attribute *hotkey_attributes[] __initdata = { |
1897 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1898 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1899 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1900 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1901 | &dev_attr_hotkey_mask.attr, | |
1902 | &dev_attr_hotkey_all_mask.attr, | |
1903 | &dev_attr_hotkey_recommended_mask.attr, | |
1904 | &dev_attr_hotkey_source_mask.attr, | |
1905 | &dev_attr_hotkey_poll_freq.attr, | |
1906 | #endif | |
ff80f137 HMH |
1907 | }; |
1908 | ||
1909 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1910 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1911 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1912 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1913 | &dev_attr_hotkey_all_mask.attr, |
1914 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1915 | #endif |
a713b4d7 HMH |
1916 | &dev_attr_hotkey_wakeup_reason.attr, |
1917 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
1918 | }; |
1919 | ||
a5763f22 | 1920 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1921 | { |
0f089147 HMH |
1922 | /* Requirements for changing the default keymaps: |
1923 | * | |
1924 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1925 | * good reasons. Do not change them unless you have deep | |
1926 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1927 | * the various ThinkPad models. The driver behaves | |
1928 | * differently for KEY_RESERVED: such keys have their | |
1929 | * hot key mask *unset* in mask_recommended, and also | |
1930 | * in the initial hot key mask programmed into the | |
1931 | * firmware at driver load time, which means the firm- | |
1932 | * ware may react very differently if you change them to | |
1933 | * something else; | |
1934 | * | |
1935 | * 2. You must be subscribed to the linux-thinkpad and | |
1936 | * ibm-acpi-devel mailing lists, and you should read the | |
1937 | * list archives since 2007 if you want to change the | |
1938 | * keymaps. This requirement exists so that you will | |
1939 | * know the past history of problems with the thinkpad- | |
1940 | * acpi driver keymaps, and also that you will be | |
1941 | * listening to any bug reports; | |
1942 | * | |
1943 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1944 | * for merging, *ever*. Send them to the linux-acpi | |
1945 | * mailinglist for comments. Merging is to be done only | |
1946 | * through acpi-test and the ACPI maintainer. | |
1947 | * | |
1948 | * If the above is too much to ask, don't change the keymap. | |
1949 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1950 | */ | |
edf0e0e5 HMH |
1951 | static u16 ibm_keycode_map[] __initdata = { |
1952 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1953 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1954 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1955 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1956 | |
1957 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1958 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1959 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1960 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1961 | |
1962 | /* brightness: firmware always reacts to them, unless | |
1963 | * X.org did some tricks in the radeon BIOS scratch | |
1964 | * registers of *some* models */ | |
e927c08d | 1965 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1966 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1967 | |
1968 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1969 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1970 | |
edf0e0e5 HMH |
1971 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1972 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1973 | |
1974 | /* Volume: firmware always react to it and reprograms | |
1975 | * the built-in *extra* mixer. Never map it to control | |
1976 | * another mixer by default. */ | |
e927c08d HMH |
1977 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1978 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1979 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1980 | |
edf0e0e5 | 1981 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1982 | |
edf0e0e5 HMH |
1983 | /* (assignments unknown, please report if found) */ |
1984 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1985 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1986 | }; | |
1987 | static u16 lenovo_keycode_map[] __initdata = { | |
1988 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1989 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1990 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1991 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1992 | |
1993 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1994 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1995 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1996 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1997 | |
b5972796 HMH |
1998 | /* These either have to go through ACPI video, or |
1999 | * act like in the IBM ThinkPads, so don't ever | |
2000 | * enable them by default */ | |
56a185b4 | 2001 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2002 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2003 | |
edf0e0e5 | 2004 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2005 | |
edf0e0e5 HMH |
2006 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2007 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2008 | |
2009 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2010 | * react to it and reprograms the built-in *extra* mixer. | |
2011 | * Never map it to control another mixer by default. | |
2012 | * | |
2013 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2014 | * these over the regular keyboard, so these are no-ops, | |
2015 | * but there are still weird bugs re. MUTE, so do not | |
2016 | * change unless you get test reports from all Lenovo | |
2017 | * models. May cause the BIOS to interfere with the | |
2018 | * HDA mixer. | |
2019 | */ | |
e927c08d HMH |
2020 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2021 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2022 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2023 | |
edf0e0e5 | 2024 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2025 | |
edf0e0e5 HMH |
2026 | /* (assignments unknown, please report if found) */ |
2027 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2028 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2029 | }; | |
2030 | ||
2031 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2032 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2033 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2034 | ||
6a38abbf | 2035 | int res, i; |
74941a69 | 2036 | int status; |
1b6521dc | 2037 | int hkeyv; |
b86c4722 | 2038 | |
fe08bc4b HMH |
2039 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2040 | ||
6a38abbf | 2041 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2042 | BUG_ON(tpacpi_inputdev->open != NULL || |
2043 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2044 | |
e0c7dfe7 | 2045 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2046 | mutex_init(&hotkey_mutex); |
5fba344c | 2047 | |
01e88f25 HMH |
2048 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2049 | mutex_init(&hotkey_thread_mutex); | |
2050 | mutex_init(&hotkey_thread_data_mutex); | |
2051 | #endif | |
2052 | ||
56b6aeb0 | 2053 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2054 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2055 | |
fe08bc4b | 2056 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2057 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2058 | |
d8fd94d9 | 2059 | if (tp_features.hotkey) { |
6c231bd5 | 2060 | hotkey_dev_attributes = create_attr_set(13, NULL); |
a0416420 HMH |
2061 | if (!hotkey_dev_attributes) |
2062 | return -ENOMEM; | |
ff80f137 HMH |
2063 | res = add_many_to_attr_set(hotkey_dev_attributes, |
2064 | hotkey_attributes, | |
2065 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
2066 | if (res) |
2067 | return res; | |
2068 | ||
56b6aeb0 | 2069 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
2070 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
2071 | for HKEY interface version 0x100 */ | |
2072 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2073 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 2074 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 2075 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
2076 | printk(TPACPI_ERR "please report this to %s\n", |
2077 | TPACPI_MAIL); | |
1b6521dc HMH |
2078 | } else { |
2079 | /* | |
2080 | * MHKV 0x100 in A31, R40, R40e, | |
2081 | * T4x, X31, and later | |
01e88f25 | 2082 | */ |
1b6521dc HMH |
2083 | tp_features.hotkey_mask = 1; |
2084 | } | |
2085 | } | |
56b6aeb0 | 2086 | |
fe08bc4b | 2087 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 2088 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 2089 | |
9b010de5 | 2090 | if (tp_features.hotkey_mask) { |
9b010de5 | 2091 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 2092 | "MHKA", "qd")) { |
e0c7dfe7 | 2093 | printk(TPACPI_ERR |
1b6521dc HMH |
2094 | "missing MHKA handler, " |
2095 | "please report this to %s\n", | |
e0c7dfe7 | 2096 | TPACPI_MAIL); |
35ff8b9f HMH |
2097 | /* FN+F12, FN+F4, FN+F3 */ |
2098 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 2099 | } |
9b010de5 HMH |
2100 | } |
2101 | ||
01e88f25 HMH |
2102 | /* hotkey_source_mask *must* be zero for |
2103 | * the first hotkey_mask_get */ | |
b2c985e7 | 2104 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 2105 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
2106 | res = hotkey_mask_get(); |
2107 | hotkey_orig_mask = hotkey_mask; | |
2108 | if (!res) { | |
2109 | res = add_many_to_attr_set( | |
2110 | hotkey_dev_attributes, | |
2111 | hotkey_mask_attributes, | |
2112 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2113 | } | |
a0416420 | 2114 | } |
74941a69 | 2115 | |
01e88f25 HMH |
2116 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2117 | if (tp_features.hotkey_mask) { | |
2118 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2119 | & ~hotkey_all_mask; | |
2120 | } else { | |
2121 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2122 | } | |
2123 | ||
2124 | vdbg_printk(TPACPI_DBG_INIT, | |
2125 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2126 | hotkey_source_mask, hotkey_poll_freq); | |
2127 | #endif | |
2128 | ||
74941a69 HMH |
2129 | /* Not all thinkpads have a hardware radio switch */ |
2130 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2131 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 2132 | printk(TPACPI_INFO |
74941a69 HMH |
2133 | "radio switch found; radios are %s\n", |
2134 | enabled(status, 0)); | |
2135 | res = add_to_attr_set(hotkey_dev_attributes, | |
2136 | &dev_attr_hotkey_radio_sw.attr); | |
2137 | } | |
2138 | ||
6c231bd5 HMH |
2139 | /* For X41t, X60t, X61t Tablets... */ |
2140 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2141 | tp_features.hotkey_tablet = 1; | |
2142 | printk(TPACPI_INFO | |
2143 | "possible tablet mode switch found; " | |
2144 | "ThinkPad in %s mode\n", | |
2145 | (status & TP_HOTKEY_TABLET_MASK)? | |
2146 | "tablet" : "laptop"); | |
2147 | res = add_to_attr_set(hotkey_dev_attributes, | |
2148 | &dev_attr_hotkey_tablet_mode.attr); | |
2149 | } | |
2150 | ||
a0416420 HMH |
2151 | if (!res) |
2152 | res = register_attr_set_with_sysfs( | |
2153 | hotkey_dev_attributes, | |
2154 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2155 | if (res) |
2156 | return res; | |
6a38abbf | 2157 | |
edf0e0e5 HMH |
2158 | /* Set up key map */ |
2159 | ||
2160 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2161 | GFP_KERNEL); | |
2162 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
2163 | printk(TPACPI_ERR |
2164 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
2165 | return -ENOMEM; |
2166 | } | |
2167 | ||
2168 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2169 | dbg_printk(TPACPI_DBG_INIT, | |
2170 | "using Lenovo default hot key map\n"); | |
2171 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2172 | TPACPI_HOTKEY_MAP_SIZE); | |
2173 | } else { | |
2174 | dbg_printk(TPACPI_DBG_INIT, | |
2175 | "using IBM default hot key map\n"); | |
2176 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2177 | TPACPI_HOTKEY_MAP_SIZE); | |
2178 | } | |
2179 | ||
6a38abbf HMH |
2180 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2181 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2182 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2183 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2184 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2185 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2186 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2187 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2188 | set_bit(hotkey_keycode_map[i], | |
2189 | tpacpi_inputdev->keybit); | |
2190 | } else { | |
2191 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2192 | hotkey_reserved_mask |= 1 << i; | |
2193 | } | |
2194 | } | |
2195 | ||
5c29d58f HMH |
2196 | if (tp_features.hotkey_wlsw) { |
2197 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2198 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2199 | } | |
6c231bd5 | 2200 | if (tp_features.hotkey_tablet) { |
b3ec6f91 HMH |
2201 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
2202 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2203 | } | |
5c29d58f | 2204 | |
b5972796 HMH |
2205 | /* Do not issue duplicate brightness change events to |
2206 | * userspace */ | |
2207 | if (!tp_features.bright_acpimode) | |
2208 | /* update bright_acpimode... */ | |
2209 | tpacpi_check_std_acpi_brightness_support(); | |
2210 | ||
2211 | if (tp_features.bright_acpimode) { | |
2212 | printk(TPACPI_INFO | |
2213 | "This ThinkPad has standard ACPI backlight " | |
2214 | "brightness control, supported by the ACPI " | |
2215 | "video driver\n"); | |
2216 | printk(TPACPI_NOTICE | |
2217 | "Disabling thinkpad-acpi brightness events " | |
2218 | "by default...\n"); | |
2219 | ||
2220 | /* The hotkey_reserved_mask change below is not | |
2221 | * necessary while the keys are at KEY_RESERVED in the | |
2222 | * default map, but better safe than sorry, leave it | |
2223 | * here as a marker of what we have to do, especially | |
2224 | * when we finally become able to set this at runtime | |
2225 | * on response to X.org requests */ | |
2226 | hotkey_reserved_mask |= | |
2227 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2228 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2229 | } | |
2230 | ||
1a343760 HMH |
2231 | dbg_printk(TPACPI_DBG_INIT, |
2232 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2233 | res = hotkey_status_set(1); |
2234 | if (res) | |
2235 | return res; | |
01e88f25 HMH |
2236 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2237 | & ~hotkey_reserved_mask) | |
1a343760 | 2238 | | hotkey_orig_mask); |
01e88f25 | 2239 | if (res < 0 && res != -ENXIO) |
1a343760 | 2240 | return res; |
ff80f137 HMH |
2241 | |
2242 | dbg_printk(TPACPI_DBG_INIT, | |
2243 | "legacy hot key reporting over procfs %s\n", | |
2244 | (hotkey_report_mode < 2) ? | |
2245 | "enabled" : "disabled"); | |
01e88f25 | 2246 | |
01e88f25 HMH |
2247 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2248 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2249 | ||
2250 | hotkey_poll_setup_safe(1); | |
7526696a | 2251 | tpacpi_input_send_radiosw(); |
6c231bd5 | 2252 | tpacpi_input_send_tabletsw(); |
56b6aeb0 HMH |
2253 | } |
2254 | ||
d8fd94d9 | 2255 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2256 | } |
2257 | ||
2258 | static void hotkey_exit(void) | |
2259 | { | |
01e88f25 HMH |
2260 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2261 | hotkey_poll_stop_sync(); | |
2262 | #endif | |
2263 | ||
d8fd94d9 | 2264 | if (tp_features.hotkey) { |
35ff8b9f HMH |
2265 | dbg_printk(TPACPI_DBG_EXIT, |
2266 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
2267 | /* no short-circuit boolean operator below! */ |
2268 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2269 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
2270 | printk(TPACPI_ERR |
2271 | "failed to restore hot key mask " | |
2272 | "to BIOS defaults\n"); | |
5fba344c | 2273 | } |
a0416420 HMH |
2274 | |
2275 | if (hotkey_dev_attributes) { | |
2276 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2277 | hotkey_dev_attributes = NULL; | |
2278 | } | |
56b6aeb0 HMH |
2279 | } |
2280 | ||
2281 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2282 | { | |
6a38abbf | 2283 | u32 hkey; |
b7c8c200 | 2284 | unsigned int scancode; |
3eea123d | 2285 | int send_acpi_ev; |
3e5ce914 | 2286 | int ignore_acpi_ev; |
3b64b51d | 2287 | int unk_ev; |
3eea123d HMH |
2288 | |
2289 | if (event != 0x80) { | |
35ff8b9f HMH |
2290 | printk(TPACPI_ERR |
2291 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2292 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2293 | acpi_bus_generate_netlink_event( |
2294 | ibm->acpi->device->pnp.device_class, | |
2295 | ibm->acpi->device->dev.bus_id, | |
2296 | event, 0); | |
3eea123d HMH |
2297 | return; |
2298 | } | |
2299 | ||
2300 | while (1) { | |
2301 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2302 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2303 | return; |
2304 | } | |
2305 | ||
2306 | if (hkey == 0) { | |
2307 | /* queue empty */ | |
2308 | return; | |
2309 | } | |
2310 | ||
3b64b51d | 2311 | send_acpi_ev = 1; |
3e5ce914 | 2312 | ignore_acpi_ev = 0; |
3b64b51d | 2313 | unk_ev = 0; |
56b6aeb0 | 2314 | |
ff80f137 HMH |
2315 | switch (hkey >> 12) { |
2316 | case 1: | |
2317 | /* 0x1000-0x1FFF: key presses */ | |
2318 | scancode = hkey & 0xfff; | |
2319 | if (scancode > 0 && scancode < 0x21) { | |
2320 | scancode--; | |
01e88f25 HMH |
2321 | if (!(hotkey_source_mask & (1 << scancode))) { |
2322 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2323 | send_acpi_ev = 0; |
01e88f25 HMH |
2324 | } else { |
2325 | ignore_acpi_ev = 1; | |
2326 | } | |
ff80f137 | 2327 | } else { |
3b64b51d | 2328 | unk_ev = 1; |
ff80f137 HMH |
2329 | } |
2330 | break; | |
a713b4d7 HMH |
2331 | case 2: |
2332 | /* Wakeup reason */ | |
2333 | switch (hkey) { | |
2334 | case 0x2304: /* suspend, undock */ | |
2335 | case 0x2404: /* hibernation, undock */ | |
2336 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2337 | ignore_acpi_ev = 1; | |
2338 | break; | |
2339 | case 0x2305: /* suspend, bay eject */ | |
2340 | case 0x2405: /* hibernation, bay eject */ | |
2341 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2342 | ignore_acpi_ev = 1; | |
2343 | break; | |
2344 | default: | |
2345 | unk_ev = 1; | |
2346 | } | |
2347 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2348 | printk(TPACPI_INFO | |
2349 | "woke up due to a hot-unplug " | |
2350 | "request...\n"); | |
50ebec09 | 2351 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2352 | } |
2353 | break; | |
2354 | case 3: | |
2355 | /* bay-related wakeups */ | |
2356 | if (hkey == 0x3003) { | |
2357 | hotkey_autosleep_ack = 1; | |
2358 | printk(TPACPI_INFO | |
2359 | "bay ejected\n"); | |
50ebec09 | 2360 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2361 | } else { |
2362 | unk_ev = 1; | |
2363 | } | |
2364 | break; | |
2365 | case 4: | |
2366 | /* dock-related wakeups */ | |
2367 | if (hkey == 0x4003) { | |
2368 | hotkey_autosleep_ack = 1; | |
2369 | printk(TPACPI_INFO | |
2370 | "undocked\n"); | |
50ebec09 | 2371 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2372 | } else { |
2373 | unk_ev = 1; | |
2374 | } | |
2375 | break; | |
ff80f137 | 2376 | case 5: |
d1edb2b5 | 2377 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2378 | switch (hkey) { |
d1edb2b5 | 2379 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2380 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2381 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2382 | break; |
6c231bd5 HMH |
2383 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2384 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2385 | tpacpi_input_send_tabletsw(); | |
2386 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2387 | send_acpi_ev = 0; |
2388 | break; | |
3b64b51d HMH |
2389 | case 0x5001: |
2390 | case 0x5002: | |
2391 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2392 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2393 | break; |
2394 | default: | |
2395 | unk_ev = 1; | |
ff80f137 HMH |
2396 | } |
2397 | break; | |
2398 | case 7: | |
2399 | /* 0x7000-0x7FFF: misc */ | |
2400 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2401 | tpacpi_input_send_radiosw(); | |
50ebec09 | 2402 | hotkey_radio_sw_notify_change(); |
3b64b51d | 2403 | send_acpi_ev = 0; |
6a38abbf | 2404 | break; |
6a38abbf | 2405 | } |
ff80f137 HMH |
2406 | /* fallthrough to default */ |
2407 | default: | |
3b64b51d HMH |
2408 | unk_ev = 1; |
2409 | } | |
2410 | if (unk_ev) { | |
35ff8b9f HMH |
2411 | printk(TPACPI_NOTICE |
2412 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2413 | } |
ff80f137 | 2414 | |
3eea123d | 2415 | /* Legacy events */ |
35ff8b9f HMH |
2416 | if (!ignore_acpi_ev && |
2417 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2418 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2419 | event, hkey); | |
3e5ce914 | 2420 | } |
ff80f137 | 2421 | |
3eea123d | 2422 | /* netlink events */ |
3e5ce914 | 2423 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2424 | acpi_bus_generate_netlink_event( |
2425 | ibm->acpi->device->pnp.device_class, | |
2426 | ibm->acpi->device->dev.bus_id, | |
2427 | event, hkey); | |
3eea123d | 2428 | } |
56b6aeb0 HMH |
2429 | } |
2430 | } | |
2431 | ||
a713b4d7 HMH |
2432 | static void hotkey_suspend(pm_message_t state) |
2433 | { | |
2434 | /* Do these on suspend, we get the events on early resume! */ | |
2435 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2436 | hotkey_autosleep_ack = 0; | |
2437 | } | |
2438 | ||
5c29d58f HMH |
2439 | static void hotkey_resume(void) |
2440 | { | |
b2c985e7 | 2441 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2442 | printk(TPACPI_ERR |
2443 | "error while trying to read hot key mask " | |
2444 | "from firmware\n"); | |
5c29d58f | 2445 | tpacpi_input_send_radiosw(); |
50ebec09 | 2446 | hotkey_radio_sw_notify_change(); |
6c231bd5 | 2447 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2448 | hotkey_wakeup_reason_notify_change(); |
2449 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2450 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2451 | } |
2452 | ||
a0416420 | 2453 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2454 | static int hotkey_read(char *p) |
1da177e4 | 2455 | { |
ae92bd17 | 2456 | int res, status; |
1da177e4 LT |
2457 | int len = 0; |
2458 | ||
d8fd94d9 | 2459 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2460 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2461 | return len; | |
2462 | } | |
2463 | ||
fc589a3c HMH |
2464 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2465 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2466 | res = hotkey_status_get(&status); |
2467 | if (!res) | |
2468 | res = hotkey_mask_get(); | |
40ca9fdf | 2469 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2470 | if (res) |
2471 | return res; | |
1da177e4 LT |
2472 | |
2473 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2474 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2475 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2476 | len += sprintf(p + len, |
2477 | "commands:\tenable, disable, reset, <mask>\n"); | |
2478 | } else { | |
2479 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2480 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2481 | } | |
2482 | ||
2483 | return len; | |
2484 | } | |
2485 | ||
78f81cc4 | 2486 | static int hotkey_write(char *buf) |
1da177e4 | 2487 | { |
ae92bd17 HMH |
2488 | int res, status; |
2489 | u32 mask; | |
1da177e4 | 2490 | char *cmd; |
1da177e4 | 2491 | |
d8fd94d9 | 2492 | if (!tp_features.hotkey) |
1da177e4 LT |
2493 | return -ENODEV; |
2494 | ||
fc589a3c HMH |
2495 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2496 | return -ERESTARTSYS; | |
40ca9fdf | 2497 | |
b2c985e7 HMH |
2498 | status = -1; |
2499 | mask = hotkey_mask; | |
78f81cc4 | 2500 | |
40ca9fdf | 2501 | res = 0; |
1da177e4 LT |
2502 | while ((cmd = next_cmd(&buf))) { |
2503 | if (strlencmp(cmd, "enable") == 0) { | |
2504 | status = 1; | |
2505 | } else if (strlencmp(cmd, "disable") == 0) { | |
2506 | status = 0; | |
2507 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2508 | status = hotkey_orig_status; |
2509 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2510 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2511 | /* mask set */ | |
2512 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2513 | /* mask set */ | |
40ca9fdf HMH |
2514 | } else { |
2515 | res = -EINVAL; | |
2516 | goto errexit; | |
2517 | } | |
1da177e4 | 2518 | } |
b2c985e7 HMH |
2519 | if (status != -1) |
2520 | res = hotkey_status_set(status); | |
1da177e4 | 2521 | |
b2c985e7 HMH |
2522 | if (!res && mask != hotkey_mask) |
2523 | res = hotkey_mask_set(mask); | |
1da177e4 | 2524 | |
40ca9fdf HMH |
2525 | errexit: |
2526 | mutex_unlock(&hotkey_mutex); | |
2527 | return res; | |
78f81cc4 | 2528 | } |
1da177e4 | 2529 | |
1ba90e3a | 2530 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2531 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2532 | {"", 0}, |
2533 | }; | |
2534 | ||
8d376cd6 | 2535 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2536 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2537 | .notify = hotkey_notify, |
2538 | .handle = &hkey_handle, | |
2539 | .type = ACPI_DEVICE_NOTIFY, | |
2540 | }; | |
2541 | ||
a5763f22 HMH |
2542 | static struct ibm_struct hotkey_driver_data = { |
2543 | .name = "hotkey", | |
a5763f22 HMH |
2544 | .read = hotkey_read, |
2545 | .write = hotkey_write, | |
2546 | .exit = hotkey_exit, | |
5c29d58f | 2547 | .resume = hotkey_resume, |
a713b4d7 | 2548 | .suspend = hotkey_suspend, |
8d376cd6 | 2549 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2550 | }; |
2551 | ||
56b6aeb0 HMH |
2552 | /************************************************************************* |
2553 | * Bluetooth subdriver | |
2554 | */ | |
1da177e4 | 2555 | |
f74a27d4 HMH |
2556 | enum { |
2557 | /* ACPI GBDC/SBDC bits */ | |
2558 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2559 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2560 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2561 | }; | |
2562 | ||
2563 | static int bluetooth_get_radiosw(void); | |
2564 | static int bluetooth_set_radiosw(int radio_on); | |
2565 | ||
d3a6ade4 HMH |
2566 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2567 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2568 | struct device_attribute *attr, | |
2569 | char *buf) | |
2570 | { | |
2571 | int status; | |
2572 | ||
2573 | status = bluetooth_get_radiosw(); | |
2574 | if (status < 0) | |
2575 | return status; | |
2576 | ||
2577 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2578 | } | |
2579 | ||
2580 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2581 | struct device_attribute *attr, | |
2582 | const char *buf, size_t count) | |
2583 | { | |
2584 | unsigned long t; | |
2585 | int res; | |
2586 | ||
2587 | if (parse_strtoul(buf, 1, &t)) | |
2588 | return -EINVAL; | |
2589 | ||
2590 | res = bluetooth_set_radiosw(t); | |
2591 | ||
2592 | return (res) ? res : count; | |
2593 | } | |
2594 | ||
2595 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2596 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2597 | bluetooth_enable_show, bluetooth_enable_store); |
2598 | ||
2599 | /* --------------------------------------------------------------------- */ | |
2600 | ||
2601 | static struct attribute *bluetooth_attributes[] = { | |
2602 | &dev_attr_bluetooth_enable.attr, | |
2603 | NULL | |
2604 | }; | |
2605 | ||
2606 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2607 | .attrs = bluetooth_attributes, |
2608 | }; | |
2609 | ||
a5763f22 | 2610 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2611 | { |
d3a6ade4 | 2612 | int res; |
d6fdd1e9 HMH |
2613 | int status = 0; |
2614 | ||
fe08bc4b HMH |
2615 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2616 | ||
e0c7dfe7 | 2617 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2618 | |
78f81cc4 BD |
2619 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2620 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2621 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2622 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2623 | ||
2624 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2625 | str_supported(tp_features.bluetooth), | |
2626 | status); | |
2627 | ||
d3a6ade4 HMH |
2628 | if (tp_features.bluetooth) { |
2629 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2630 | /* no bluetooth hardware present in system */ | |
2631 | tp_features.bluetooth = 0; | |
2632 | dbg_printk(TPACPI_DBG_INIT, | |
2633 | "bluetooth hardware not installed\n"); | |
2634 | } else { | |
2635 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2636 | &bluetooth_attr_group); | |
2637 | if (res) | |
2638 | return res; | |
2639 | } | |
d6fdd1e9 | 2640 | } |
fe08bc4b | 2641 | |
d8fd94d9 | 2642 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2643 | } |
2644 | ||
d3a6ade4 HMH |
2645 | static void bluetooth_exit(void) |
2646 | { | |
2647 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2648 | &bluetooth_attr_group); | |
2649 | } | |
2650 | ||
d6fdd1e9 | 2651 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2652 | { |
2653 | int status; | |
2654 | ||
d6fdd1e9 HMH |
2655 | if (!tp_features.bluetooth) |
2656 | return -ENODEV; | |
1da177e4 | 2657 | |
d6fdd1e9 HMH |
2658 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2659 | return -EIO; | |
2660 | ||
2661 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2662 | } | |
2663 | ||
2664 | static int bluetooth_set_radiosw(int radio_on) | |
2665 | { | |
2666 | int status; | |
2667 | ||
2668 | if (!tp_features.bluetooth) | |
2669 | return -ENODEV; | |
2670 | ||
2671 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2672 | return -EIO; | |
2673 | if (radio_on) | |
2674 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2675 | else | |
2676 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2677 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2678 | return -EIO; | |
2679 | ||
2680 | return 0; | |
1da177e4 LT |
2681 | } |
2682 | ||
d3a6ade4 | 2683 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2684 | static int bluetooth_read(char *p) |
1da177e4 LT |
2685 | { |
2686 | int len = 0; | |
d6fdd1e9 | 2687 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2688 | |
d8fd94d9 | 2689 | if (!tp_features.bluetooth) |
1da177e4 | 2690 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2691 | else { |
d6fdd1e9 HMH |
2692 | len += sprintf(p + len, "status:\t\t%s\n", |
2693 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2694 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2695 | } | |
2696 | ||
2697 | return len; | |
2698 | } | |
2699 | ||
78f81cc4 | 2700 | static int bluetooth_write(char *buf) |
1da177e4 | 2701 | { |
1da177e4 | 2702 | char *cmd; |
1da177e4 | 2703 | |
d8fd94d9 | 2704 | if (!tp_features.bluetooth) |
78f81cc4 | 2705 | return -ENODEV; |
1da177e4 LT |
2706 | |
2707 | while ((cmd = next_cmd(&buf))) { | |
2708 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2709 | bluetooth_set_radiosw(1); |
1da177e4 | 2710 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2711 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2712 | } else |
2713 | return -EINVAL; | |
1da177e4 LT |
2714 | } |
2715 | ||
1da177e4 LT |
2716 | return 0; |
2717 | } | |
2718 | ||
a5763f22 HMH |
2719 | static struct ibm_struct bluetooth_driver_data = { |
2720 | .name = "bluetooth", | |
2721 | .read = bluetooth_read, | |
2722 | .write = bluetooth_write, | |
d3a6ade4 | 2723 | .exit = bluetooth_exit, |
a5763f22 HMH |
2724 | }; |
2725 | ||
56b6aeb0 HMH |
2726 | /************************************************************************* |
2727 | * Wan subdriver | |
2728 | */ | |
2729 | ||
f74a27d4 HMH |
2730 | enum { |
2731 | /* ACPI GWAN/SWAN bits */ | |
2732 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2733 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2734 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2735 | }; | |
2736 | ||
2737 | static int wan_get_radiosw(void); | |
2738 | static int wan_set_radiosw(int radio_on); | |
2739 | ||
d3a6ade4 HMH |
2740 | /* sysfs wan enable ---------------------------------------------------- */ |
2741 | static ssize_t wan_enable_show(struct device *dev, | |
2742 | struct device_attribute *attr, | |
2743 | char *buf) | |
2744 | { | |
2745 | int status; | |
2746 | ||
2747 | status = wan_get_radiosw(); | |
2748 | if (status < 0) | |
2749 | return status; | |
2750 | ||
2751 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2752 | } | |
2753 | ||
2754 | static ssize_t wan_enable_store(struct device *dev, | |
2755 | struct device_attribute *attr, | |
2756 | const char *buf, size_t count) | |
2757 | { | |
2758 | unsigned long t; | |
2759 | int res; | |
2760 | ||
2761 | if (parse_strtoul(buf, 1, &t)) | |
2762 | return -EINVAL; | |
2763 | ||
2764 | res = wan_set_radiosw(t); | |
2765 | ||
2766 | return (res) ? res : count; | |
2767 | } | |
2768 | ||
2769 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2770 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2771 | wan_enable_show, wan_enable_store); |
2772 | ||
2773 | /* --------------------------------------------------------------------- */ | |
2774 | ||
2775 | static struct attribute *wan_attributes[] = { | |
2776 | &dev_attr_wan_enable.attr, | |
2777 | NULL | |
2778 | }; | |
2779 | ||
2780 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2781 | .attrs = wan_attributes, |
2782 | }; | |
2783 | ||
a5763f22 | 2784 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2785 | { |
d3a6ade4 | 2786 | int res; |
d6fdd1e9 HMH |
2787 | int status = 0; |
2788 | ||
fe08bc4b HMH |
2789 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2790 | ||
e0c7dfe7 | 2791 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2792 | |
d8fd94d9 | 2793 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2794 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2795 | ||
2796 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2797 | str_supported(tp_features.wan), | |
2798 | status); | |
2799 | ||
d3a6ade4 HMH |
2800 | if (tp_features.wan) { |
2801 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2802 | /* no wan hardware present in system */ | |
2803 | tp_features.wan = 0; | |
2804 | dbg_printk(TPACPI_DBG_INIT, | |
2805 | "wan hardware not installed\n"); | |
2806 | } else { | |
2807 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2808 | &wan_attr_group); | |
2809 | if (res) | |
2810 | return res; | |
2811 | } | |
d6fdd1e9 | 2812 | } |
fe08bc4b | 2813 | |
d8fd94d9 | 2814 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2815 | } |
2816 | ||
d3a6ade4 HMH |
2817 | static void wan_exit(void) |
2818 | { | |
2819 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2820 | &wan_attr_group); | |
2821 | } | |
2822 | ||
d6fdd1e9 | 2823 | static int wan_get_radiosw(void) |
42adb53c JF |
2824 | { |
2825 | int status; | |
2826 | ||
d6fdd1e9 HMH |
2827 | if (!tp_features.wan) |
2828 | return -ENODEV; | |
42adb53c | 2829 | |
d6fdd1e9 HMH |
2830 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2831 | return -EIO; | |
2832 | ||
2833 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2834 | } | |
2835 | ||
2836 | static int wan_set_radiosw(int radio_on) | |
2837 | { | |
2838 | int status; | |
2839 | ||
2840 | if (!tp_features.wan) | |
2841 | return -ENODEV; | |
2842 | ||
2843 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2844 | return -EIO; | |
2845 | if (radio_on) | |
2846 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2847 | else | |
2848 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2849 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2850 | return -EIO; | |
2851 | ||
2852 | return 0; | |
42adb53c JF |
2853 | } |
2854 | ||
d3a6ade4 | 2855 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2856 | static int wan_read(char *p) |
2857 | { | |
2858 | int len = 0; | |
d6fdd1e9 | 2859 | int status = wan_get_radiosw(); |
42adb53c | 2860 | |
d8fd94d9 | 2861 | if (!tp_features.wan) |
42adb53c | 2862 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2863 | else { |
d6fdd1e9 HMH |
2864 | len += sprintf(p + len, "status:\t\t%s\n", |
2865 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2866 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2867 | } | |
2868 | ||
2869 | return len; | |
2870 | } | |
2871 | ||
2872 | static int wan_write(char *buf) | |
2873 | { | |
42adb53c | 2874 | char *cmd; |
42adb53c | 2875 | |
d8fd94d9 | 2876 | if (!tp_features.wan) |
42adb53c JF |
2877 | return -ENODEV; |
2878 | ||
2879 | while ((cmd = next_cmd(&buf))) { | |
2880 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2881 | wan_set_radiosw(1); |
42adb53c | 2882 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2883 | wan_set_radiosw(0); |
42adb53c JF |
2884 | } else |
2885 | return -EINVAL; | |
42adb53c JF |
2886 | } |
2887 | ||
42adb53c JF |
2888 | return 0; |
2889 | } | |
2890 | ||
a5763f22 HMH |
2891 | static struct ibm_struct wan_driver_data = { |
2892 | .name = "wan", | |
2893 | .read = wan_read, | |
2894 | .write = wan_write, | |
d3a6ade4 | 2895 | .exit = wan_exit, |
92641177 | 2896 | .flags.experimental = 1, |
a5763f22 HMH |
2897 | }; |
2898 | ||
56b6aeb0 HMH |
2899 | /************************************************************************* |
2900 | * Video subdriver | |
2901 | */ | |
2902 | ||
d7c1d17d HMH |
2903 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
2904 | ||
f74a27d4 HMH |
2905 | enum video_access_mode { |
2906 | TPACPI_VIDEO_NONE = 0, | |
2907 | TPACPI_VIDEO_570, /* 570 */ | |
2908 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2909 | TPACPI_VIDEO_NEW, /* all others */ | |
2910 | }; | |
2911 | ||
2912 | enum { /* video status flags, based on VIDEO_570 */ | |
2913 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2914 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2915 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2916 | }; | |
2917 | ||
2918 | enum { /* TPACPI_VIDEO_570 constants */ | |
2919 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2920 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2921 | * video_status_flags */ | |
2922 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2923 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2924 | }; | |
2925 | ||
9a8e1738 HMH |
2926 | static enum video_access_mode video_supported; |
2927 | static int video_orig_autosw; | |
78f81cc4 | 2928 | |
f74a27d4 HMH |
2929 | static int video_autosw_get(void); |
2930 | static int video_autosw_set(int enable); | |
2931 | ||
e0c7dfe7 | 2932 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2933 | |
a5763f22 | 2934 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2935 | { |
78f81cc4 BD |
2936 | int ivga; |
2937 | ||
fe08bc4b HMH |
2938 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2939 | ||
e0c7dfe7 HMH |
2940 | TPACPI_ACPIHANDLE_INIT(vid); |
2941 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2942 | |
78f81cc4 BD |
2943 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2944 | /* G41, assume IVGA doesn't change */ | |
2945 | vid_handle = vid2_handle; | |
2946 | ||
2947 | if (!vid_handle) | |
2948 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2949 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2950 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2951 | /* 570 */ | |
efa27145 | 2952 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2953 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2954 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2955 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2956 | else |
2957 | /* all others */ | |
efa27145 | 2958 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2959 | |
fe08bc4b HMH |
2960 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2961 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2962 | video_supported); | |
2963 | ||
5fba344c | 2964 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2965 | } |
2966 | ||
56b6aeb0 HMH |
2967 | static void video_exit(void) |
2968 | { | |
83f34724 HMH |
2969 | dbg_printk(TPACPI_DBG_EXIT, |
2970 | "restoring original video autoswitch mode\n"); | |
2971 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2972 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2973 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2974 | } |
2975 | ||
83f34724 | 2976 | static int video_outputsw_get(void) |
1da177e4 LT |
2977 | { |
2978 | int status = 0; | |
2979 | int i; | |
2980 | ||
83f34724 HMH |
2981 | switch (video_supported) { |
2982 | case TPACPI_VIDEO_570: | |
2983 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2984 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2985 | return -EIO; | |
2986 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2987 | break; | |
2988 | case TPACPI_VIDEO_770: | |
2989 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2990 | return -EIO; | |
2991 | if (i) | |
2992 | status |= TP_ACPI_VIDEO_S_LCD; | |
2993 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2994 | return -EIO; | |
2995 | if (i) | |
2996 | status |= TP_ACPI_VIDEO_S_CRT; | |
2997 | break; | |
2998 | case TPACPI_VIDEO_NEW: | |
2999 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3000 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3001 | return -EIO; | |
3002 | if (i) | |
3003 | status |= TP_ACPI_VIDEO_S_CRT; | |
3004 | ||
3005 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3006 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3007 | return -EIO; | |
3008 | if (i) | |
3009 | status |= TP_ACPI_VIDEO_S_LCD; | |
3010 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3011 | return -EIO; | |
3012 | if (i) | |
3013 | status |= TP_ACPI_VIDEO_S_DVI; | |
3014 | break; | |
3015 | default: | |
3016 | return -ENOSYS; | |
78f81cc4 BD |
3017 | } |
3018 | ||
3019 | return status; | |
3020 | } | |
1da177e4 | 3021 | |
83f34724 | 3022 | static int video_outputsw_set(int status) |
78f81cc4 | 3023 | { |
83f34724 HMH |
3024 | int autosw; |
3025 | int res = 0; | |
3026 | ||
3027 | switch (video_supported) { | |
3028 | case TPACPI_VIDEO_570: | |
3029 | res = acpi_evalf(NULL, NULL, | |
3030 | "\\_SB.PHS2", "vdd", | |
3031 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3032 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3033 | break; | |
3034 | case TPACPI_VIDEO_770: | |
3035 | autosw = video_autosw_get(); | |
3036 | if (autosw < 0) | |
3037 | return autosw; | |
1da177e4 | 3038 | |
83f34724 HMH |
3039 | res = video_autosw_set(1); |
3040 | if (res) | |
3041 | return res; | |
3042 | res = acpi_evalf(vid_handle, NULL, | |
3043 | "ASWT", "vdd", status * 0x100, 0); | |
3044 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3045 | printk(TPACPI_ERR |
3046 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3047 | return -EIO; |
3048 | } | |
3049 | break; | |
3050 | case TPACPI_VIDEO_NEW: | |
3051 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3052 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3053 | break; |
3054 | default: | |
3055 | return -ENOSYS; | |
3056 | } | |
1da177e4 | 3057 | |
83f34724 | 3058 | return (res)? 0 : -EIO; |
1da177e4 LT |
3059 | } |
3060 | ||
83f34724 | 3061 | static int video_autosw_get(void) |
78f81cc4 | 3062 | { |
83f34724 | 3063 | int autosw = 0; |
78f81cc4 | 3064 | |
83f34724 HMH |
3065 | switch (video_supported) { |
3066 | case TPACPI_VIDEO_570: | |
3067 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3068 | return -EIO; | |
3069 | break; | |
3070 | case TPACPI_VIDEO_770: | |
3071 | case TPACPI_VIDEO_NEW: | |
3072 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3073 | return -EIO; | |
3074 | break; | |
3075 | default: | |
3076 | return -ENOSYS; | |
3077 | } | |
78f81cc4 | 3078 | |
83f34724 | 3079 | return autosw & 1; |
78f81cc4 BD |
3080 | } |
3081 | ||
83f34724 | 3082 | static int video_autosw_set(int enable) |
78f81cc4 | 3083 | { |
83f34724 HMH |
3084 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3085 | return -EIO; | |
3086 | return 0; | |
78f81cc4 BD |
3087 | } |
3088 | ||
83f34724 | 3089 | static int video_outputsw_cycle(void) |
78f81cc4 | 3090 | { |
83f34724 HMH |
3091 | int autosw = video_autosw_get(); |
3092 | int res; | |
78f81cc4 | 3093 | |
83f34724 HMH |
3094 | if (autosw < 0) |
3095 | return autosw; | |
78f81cc4 | 3096 | |
83f34724 HMH |
3097 | switch (video_supported) { |
3098 | case TPACPI_VIDEO_570: | |
3099 | res = video_autosw_set(1); | |
3100 | if (res) | |
3101 | return res; | |
3102 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3103 | break; | |
3104 | case TPACPI_VIDEO_770: | |
3105 | case TPACPI_VIDEO_NEW: | |
3106 | res = video_autosw_set(1); | |
3107 | if (res) | |
3108 | return res; | |
3109 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3110 | break; | |
3111 | default: | |
3112 | return -ENOSYS; | |
3113 | } | |
3114 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3115 | printk(TPACPI_ERR |
3116 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3117 | return -EIO; |
78f81cc4 BD |
3118 | } |
3119 | ||
83f34724 HMH |
3120 | return (res)? 0 : -EIO; |
3121 | } | |
3122 | ||
3123 | static int video_expand_toggle(void) | |
3124 | { | |
3125 | switch (video_supported) { | |
3126 | case TPACPI_VIDEO_570: | |
3127 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3128 | 0 : -EIO; | |
3129 | case TPACPI_VIDEO_770: | |
3130 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3131 | 0 : -EIO; | |
3132 | case TPACPI_VIDEO_NEW: | |
3133 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3134 | 0 : -EIO; | |
3135 | default: | |
3136 | return -ENOSYS; | |
3137 | } | |
3138 | /* not reached */ | |
78f81cc4 BD |
3139 | } |
3140 | ||
56b6aeb0 HMH |
3141 | static int video_read(char *p) |
3142 | { | |
83f34724 | 3143 | int status, autosw; |
56b6aeb0 HMH |
3144 | int len = 0; |
3145 | ||
83f34724 | 3146 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3147 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3148 | return len; | |
3149 | } | |
3150 | ||
83f34724 HMH |
3151 | status = video_outputsw_get(); |
3152 | if (status < 0) | |
3153 | return status; | |
3154 | ||
3155 | autosw = video_autosw_get(); | |
3156 | if (autosw < 0) | |
3157 | return autosw; | |
3158 | ||
56b6aeb0 HMH |
3159 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3160 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3161 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3162 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3163 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3164 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3165 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3166 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3167 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3168 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3169 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3170 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3171 | ||
3172 | return len; | |
3173 | } | |
3174 | ||
78f81cc4 | 3175 | static int video_write(char *buf) |
1da177e4 LT |
3176 | { |
3177 | char *cmd; | |
3178 | int enable, disable, status; | |
83f34724 | 3179 | int res; |
1da177e4 | 3180 | |
83f34724 | 3181 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3182 | return -ENODEV; |
3183 | ||
83f34724 HMH |
3184 | enable = 0; |
3185 | disable = 0; | |
1da177e4 LT |
3186 | |
3187 | while ((cmd = next_cmd(&buf))) { | |
3188 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3189 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3190 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3191 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3192 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3193 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3194 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3195 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3196 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3197 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3198 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3199 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3200 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3201 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3202 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3203 | res = video_autosw_set(1); |
3204 | if (res) | |
3205 | return res; | |
1da177e4 | 3206 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3207 | res = video_autosw_set(0); |
3208 | if (res) | |
3209 | return res; | |
1da177e4 | 3210 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3211 | res = video_outputsw_cycle(); |
3212 | if (res) | |
3213 | return res; | |
1da177e4 | 3214 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3215 | res = video_expand_toggle(); |
3216 | if (res) | |
3217 | return res; | |
1da177e4 LT |
3218 | } else |
3219 | return -EINVAL; | |
3220 | } | |
3221 | ||
3222 | if (enable || disable) { | |
83f34724 HMH |
3223 | status = video_outputsw_get(); |
3224 | if (status < 0) | |
3225 | return status; | |
3226 | res = video_outputsw_set((status & ~disable) | enable); | |
3227 | if (res) | |
3228 | return res; | |
1da177e4 LT |
3229 | } |
3230 | ||
3231 | return 0; | |
3232 | } | |
3233 | ||
a5763f22 HMH |
3234 | static struct ibm_struct video_driver_data = { |
3235 | .name = "video", | |
3236 | .read = video_read, | |
3237 | .write = video_write, | |
3238 | .exit = video_exit, | |
3239 | }; | |
3240 | ||
d7c1d17d HMH |
3241 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3242 | ||
56b6aeb0 HMH |
3243 | /************************************************************************* |
3244 | * Light (thinklight) subdriver | |
3245 | */ | |
1da177e4 | 3246 | |
e0c7dfe7 HMH |
3247 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3248 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3249 | |
4fa6811b HMH |
3250 | static int light_get_status(void) |
3251 | { | |
3252 | int status = 0; | |
3253 | ||
3254 | if (tp_features.light_status) { | |
3255 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
3256 | return -EIO; | |
3257 | return (!!status); | |
3258 | } | |
3259 | ||
3260 | return -ENXIO; | |
3261 | } | |
3262 | ||
3263 | static int light_set_status(int status) | |
3264 | { | |
3265 | int rc; | |
3266 | ||
3267 | if (tp_features.light) { | |
3268 | if (cmos_handle) { | |
3269 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
3270 | (status)? | |
3271 | TP_CMOS_THINKLIGHT_ON : | |
3272 | TP_CMOS_THINKLIGHT_OFF); | |
3273 | } else { | |
3274 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
3275 | (status)? 1 : 0); | |
3276 | } | |
3277 | return (rc)? 0 : -EIO; | |
3278 | } | |
3279 | ||
3280 | return -ENXIO; | |
3281 | } | |
3282 | ||
a5763f22 | 3283 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3284 | { |
fe08bc4b HMH |
3285 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3286 | ||
e0c7dfe7 HMH |
3287 | TPACPI_ACPIHANDLE_INIT(ledb); |
3288 | TPACPI_ACPIHANDLE_INIT(lght); | |
3289 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 3290 | |
78f81cc4 | 3291 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3292 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3293 | |
d8fd94d9 | 3294 | if (tp_features.light) |
78f81cc4 BD |
3295 | /* light status not supported on |
3296 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3297 | tp_features.light_status = |
3298 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3299 | |
fe08bc4b | 3300 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3301 | str_supported(tp_features.light)); |
fe08bc4b | 3302 | |
d8fd94d9 | 3303 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
3304 | } |
3305 | ||
78f81cc4 | 3306 | static int light_read(char *p) |
1da177e4 LT |
3307 | { |
3308 | int len = 0; | |
4fa6811b | 3309 | int status; |
1da177e4 | 3310 | |
d8fd94d9 | 3311 | if (!tp_features.light) { |
78f81cc4 | 3312 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3313 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3314 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3315 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3316 | } else { | |
4fa6811b HMH |
3317 | status = light_get_status(); |
3318 | if (status < 0) | |
3319 | return status; | |
1da177e4 | 3320 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
3321 | len += sprintf(p + len, "commands:\ton, off\n"); |
3322 | } | |
1da177e4 LT |
3323 | |
3324 | return len; | |
3325 | } | |
3326 | ||
78f81cc4 | 3327 | static int light_write(char *buf) |
1da177e4 | 3328 | { |
1da177e4 | 3329 | char *cmd; |
4fa6811b | 3330 | int newstatus = 0; |
78f81cc4 | 3331 | |
d8fd94d9 | 3332 | if (!tp_features.light) |
78f81cc4 BD |
3333 | return -ENODEV; |
3334 | ||
1da177e4 LT |
3335 | while ((cmd = next_cmd(&buf))) { |
3336 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 3337 | newstatus = 1; |
1da177e4 | 3338 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 3339 | newstatus = 0; |
1da177e4 LT |
3340 | } else |
3341 | return -EINVAL; | |
1da177e4 LT |
3342 | } |
3343 | ||
4fa6811b | 3344 | return light_set_status(newstatus); |
1da177e4 LT |
3345 | } |
3346 | ||
a5763f22 HMH |
3347 | static struct ibm_struct light_driver_data = { |
3348 | .name = "light", | |
3349 | .read = light_read, | |
3350 | .write = light_write, | |
3351 | }; | |
3352 | ||
56b6aeb0 HMH |
3353 | /************************************************************************* |
3354 | * Dock subdriver | |
3355 | */ | |
1da177e4 | 3356 | |
85998248 | 3357 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3358 | |
f74a27d4 HMH |
3359 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3360 | static int dock_read(char *p); | |
3361 | static int dock_write(char *buf); | |
3362 | ||
e0c7dfe7 | 3363 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3364 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3365 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3366 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3367 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3368 | ||
5fba344c | 3369 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3370 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3371 | |
1ba90e3a TR |
3372 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3373 | {PCI_ROOT_HID_STRING, 0}, | |
3374 | {"", 0}, | |
3375 | }; | |
3376 | ||
d94a7f16 HMH |
3377 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3378 | { | |
3379 | .notify = dock_notify, | |
3380 | .handle = &dock_handle, | |
3381 | .type = ACPI_SYSTEM_NOTIFY, | |
3382 | }, | |
3383 | { | |
996fba08 HMH |
3384 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3385 | * We just use it to get notifications of dock hotplug | |
3386 | * in very old thinkpads */ | |
1ba90e3a | 3387 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3388 | .notify = dock_notify, |
3389 | .handle = &pci_handle, | |
3390 | .type = ACPI_SYSTEM_NOTIFY, | |
3391 | }, | |
3392 | }; | |
3393 | ||
3394 | static struct ibm_struct dock_driver_data[2] = { | |
3395 | { | |
3396 | .name = "dock", | |
3397 | .read = dock_read, | |
3398 | .write = dock_write, | |
3399 | .acpi = &ibm_dock_acpidriver[0], | |
3400 | }, | |
3401 | { | |
3402 | .name = "dock", | |
3403 | .acpi = &ibm_dock_acpidriver[1], | |
3404 | }, | |
3405 | }; | |
3406 | ||
1da177e4 LT |
3407 | #define dock_docked() (_sta(dock_handle) & 1) |
3408 | ||
a5763f22 | 3409 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3410 | { |
fe08bc4b HMH |
3411 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3412 | ||
e0c7dfe7 | 3413 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3414 | |
fe08bc4b HMH |
3415 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3416 | str_supported(dock_handle != NULL)); | |
3417 | ||
5fba344c HMH |
3418 | return (dock_handle)? 0 : 1; |
3419 | } | |
3420 | ||
d94a7f16 HMH |
3421 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3422 | { | |
3423 | int dock2_needed; | |
3424 | ||
3425 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3426 | ||
3427 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3428 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3429 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3430 | dock2_needed = (pci_handle != NULL); |
3431 | vdbg_printk(TPACPI_DBG_INIT, | |
3432 | "dock PCI handler for the TP 570 is %s\n", | |
3433 | str_supported(dock2_needed)); | |
3434 | } else { | |
3435 | vdbg_printk(TPACPI_DBG_INIT, | |
3436 | "dock subdriver part 2 not required\n"); | |
3437 | dock2_needed = 0; | |
3438 | } | |
3439 | ||
3440 | return (dock2_needed)? 0 : 1; | |
3441 | } | |
3442 | ||
56b6aeb0 HMH |
3443 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3444 | { | |
3445 | int docked = dock_docked(); | |
1ba90e3a TR |
3446 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3447 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3448 | int data; |
56b6aeb0 HMH |
3449 | |
3450 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3451 | data = 1; /* button */ |
56b6aeb0 | 3452 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3453 | data = 3; /* dock */ |
56b6aeb0 | 3454 | else if (event == 3 && docked) |
962ce8ca | 3455 | data = 1; /* button */ |
56b6aeb0 | 3456 | else if (event == 3 && !docked) |
962ce8ca | 3457 | data = 2; /* undock */ |
56b6aeb0 | 3458 | else if (event == 0 && docked) |
962ce8ca | 3459 | data = 3; /* dock */ |
56b6aeb0 | 3460 | else { |
e0c7dfe7 | 3461 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3462 | event, _sta(dock_handle)); |
962ce8ca | 3463 | data = 0; /* unknown */ |
56b6aeb0 | 3464 | } |
14e04fb3 | 3465 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3466 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3467 | ibm->acpi->device->dev.bus_id, | |
3468 | event, data); | |
56b6aeb0 HMH |
3469 | } |
3470 | ||
78f81cc4 | 3471 | static int dock_read(char *p) |
1da177e4 LT |
3472 | { |
3473 | int len = 0; | |
3474 | int docked = dock_docked(); | |
3475 | ||
3476 | if (!dock_handle) | |
3477 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3478 | else if (!docked) | |
3479 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3480 | else { | |
3481 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3482 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3483 | } | |
3484 | ||
3485 | return len; | |
3486 | } | |
3487 | ||
78f81cc4 | 3488 | static int dock_write(char *buf) |
1da177e4 LT |
3489 | { |
3490 | char *cmd; | |
3491 | ||
3492 | if (!dock_docked()) | |
78f81cc4 | 3493 | return -ENODEV; |
1da177e4 LT |
3494 | |
3495 | while ((cmd = next_cmd(&buf))) { | |
3496 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3497 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3498 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3499 | return -EIO; |
3500 | } else if (strlencmp(cmd, "dock") == 0) { | |
3501 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3502 | return -EIO; | |
3503 | } else | |
3504 | return -EINVAL; | |
1da177e4 | 3505 | } |
56b6aeb0 HMH |
3506 | |
3507 | return 0; | |
1da177e4 | 3508 | } |
56b6aeb0 | 3509 | |
85998248 | 3510 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3511 | |
3512 | /************************************************************************* | |
3513 | * Bay subdriver | |
3514 | */ | |
1da177e4 | 3515 | |
85998248 | 3516 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3517 | |
e0c7dfe7 | 3518 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3519 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3520 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3521 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3522 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3523 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3524 | "_EJ0", /* all others */ |
3525 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3526 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3527 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3528 | ); /* all others */ | |
e0c7dfe7 | 3529 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3530 | "_EJ0", /* 770x */ |
3531 | ); /* all others */ | |
3532 | ||
a5763f22 | 3533 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3534 | { |
fe08bc4b HMH |
3535 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3536 | ||
e0c7dfe7 | 3537 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3538 | if (bay_handle) |
e0c7dfe7 HMH |
3539 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3540 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3541 | if (bay2_handle) |
e0c7dfe7 | 3542 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3543 | |
d8fd94d9 HMH |
3544 | tp_features.bay_status = bay_handle && |
3545 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3546 | tp_features.bay_status2 = bay2_handle && | |
3547 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3548 | |
d8fd94d9 HMH |
3549 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3550 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3551 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3552 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3553 | |
fe08bc4b HMH |
3554 | vdbg_printk(TPACPI_DBG_INIT, |
3555 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3556 | str_supported(tp_features.bay_status), |
3557 | str_supported(tp_features.bay_eject), | |
3558 | str_supported(tp_features.bay_status2), | |
3559 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3560 | |
d8fd94d9 HMH |
3561 | return (tp_features.bay_status || tp_features.bay_eject || |
3562 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3563 | } |
3564 | ||
56b6aeb0 HMH |
3565 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3566 | { | |
14e04fb3 | 3567 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3568 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3569 | ibm->acpi->device->dev.bus_id, | |
3570 | event, 0); | |
56b6aeb0 HMH |
3571 | } |
3572 | ||
78f81cc4 BD |
3573 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3574 | ||
3575 | static int bay_read(char *p) | |
1da177e4 LT |
3576 | { |
3577 | int len = 0; | |
78f81cc4 BD |
3578 | int occupied = bay_occupied(bay); |
3579 | int occupied2 = bay_occupied(bay2); | |
3580 | int eject, eject2; | |
3581 | ||
d8fd94d9 HMH |
3582 | len += sprintf(p + len, "status:\t\t%s\n", |
3583 | tp_features.bay_status ? | |
3584 | (occupied ? "occupied" : "unoccupied") : | |
3585 | "not supported"); | |
3586 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3587 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3588 | "occupied" : "unoccupied"); | |
3589 | ||
d8fd94d9 HMH |
3590 | eject = tp_features.bay_eject && occupied; |
3591 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3592 | |
3593 | if (eject && eject2) | |
3594 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3595 | else if (eject) | |
1da177e4 | 3596 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3597 | else if (eject2) |
3598 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3599 | |
3600 | return len; | |
3601 | } | |
3602 | ||
78f81cc4 | 3603 | static int bay_write(char *buf) |
1da177e4 LT |
3604 | { |
3605 | char *cmd; | |
3606 | ||
d8fd94d9 | 3607 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3608 | return -ENODEV; |
3609 | ||
1da177e4 | 3610 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3611 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3612 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3613 | return -EIO; | |
d8fd94d9 | 3614 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3615 | strlencmp(cmd, "eject2") == 0) { |
3616 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3617 | return -EIO; |
3618 | } else | |
3619 | return -EINVAL; | |
3620 | } | |
3621 | ||
3622 | return 0; | |
78f81cc4 | 3623 | } |
a5763f22 | 3624 | |
8d376cd6 HMH |
3625 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3626 | .notify = bay_notify, | |
3627 | .handle = &bay_handle, | |
3628 | .type = ACPI_SYSTEM_NOTIFY, | |
3629 | }; | |
3630 | ||
a5763f22 HMH |
3631 | static struct ibm_struct bay_driver_data = { |
3632 | .name = "bay", | |
3633 | .read = bay_read, | |
3634 | .write = bay_write, | |
8d376cd6 | 3635 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3636 | }; |
3637 | ||
85998248 | 3638 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3639 | |
56b6aeb0 HMH |
3640 | /************************************************************************* |
3641 | * CMOS subdriver | |
3642 | */ | |
3643 | ||
b616004c HMH |
3644 | /* sysfs cmos_command -------------------------------------------------- */ |
3645 | static ssize_t cmos_command_store(struct device *dev, | |
3646 | struct device_attribute *attr, | |
3647 | const char *buf, size_t count) | |
3648 | { | |
3649 | unsigned long cmos_cmd; | |
3650 | int res; | |
3651 | ||
3652 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3653 | return -EINVAL; | |
3654 | ||
3655 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3656 | return (res)? res : count; | |
3657 | } | |
3658 | ||
3659 | static struct device_attribute dev_attr_cmos_command = | |
3660 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3661 | ||
3662 | /* --------------------------------------------------------------------- */ | |
3663 | ||
a5763f22 | 3664 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3665 | { |
b616004c HMH |
3666 | int res; |
3667 | ||
fe08bc4b HMH |
3668 | vdbg_printk(TPACPI_DBG_INIT, |
3669 | "initializing cmos commands subdriver\n"); | |
3670 | ||
e0c7dfe7 | 3671 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3672 | |
fe08bc4b HMH |
3673 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3674 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3675 | |
3676 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3677 | if (res) | |
3678 | return res; | |
3679 | ||
5fba344c HMH |
3680 | return (cmos_handle)? 0 : 1; |
3681 | } | |
3682 | ||
b616004c HMH |
3683 | static void cmos_exit(void) |
3684 | { | |
3685 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3686 | } | |
3687 | ||
78f81cc4 | 3688 | static int cmos_read(char *p) |
1da177e4 LT |
3689 | { |
3690 | int len = 0; | |
3691 | ||
78f81cc4 BD |
3692 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3693 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3694 | if (!cmos_handle) |
3695 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3696 | else { | |
3697 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3698 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3699 | } |
3700 | ||
3701 | return len; | |
3702 | } | |
3703 | ||
78f81cc4 | 3704 | static int cmos_write(char *buf) |
1da177e4 LT |
3705 | { |
3706 | char *cmd; | |
c9bea99c | 3707 | int cmos_cmd, res; |
1da177e4 LT |
3708 | |
3709 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3710 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3711 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3712 | /* cmos_cmd set */ |
3713 | } else | |
3714 | return -EINVAL; | |
3715 | ||
c9bea99c HMH |
3716 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3717 | if (res) | |
3718 | return res; | |
1da177e4 LT |
3719 | } |
3720 | ||
3721 | return 0; | |
78f81cc4 BD |
3722 | } |
3723 | ||
a5763f22 HMH |
3724 | static struct ibm_struct cmos_driver_data = { |
3725 | .name = "cmos", | |
3726 | .read = cmos_read, | |
3727 | .write = cmos_write, | |
b616004c | 3728 | .exit = cmos_exit, |
a5763f22 | 3729 | }; |
56b6aeb0 HMH |
3730 | |
3731 | /************************************************************************* | |
3732 | * LED subdriver | |
3733 | */ | |
3734 | ||
f74a27d4 HMH |
3735 | enum led_access_mode { |
3736 | TPACPI_LED_NONE = 0, | |
3737 | TPACPI_LED_570, /* 570 */ | |
3738 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3739 | TPACPI_LED_NEW, /* all others */ | |
3740 | }; | |
3741 | ||
3742 | enum { /* For TPACPI_LED_OLD */ | |
3743 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3744 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3745 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3746 | }; | |
3747 | ||
4fa6811b HMH |
3748 | enum led_status_t { |
3749 | TPACPI_LED_OFF = 0, | |
3750 | TPACPI_LED_ON, | |
3751 | TPACPI_LED_BLINK, | |
3752 | }; | |
3753 | ||
9a8e1738 | 3754 | static enum led_access_mode led_supported; |
78f81cc4 | 3755 | |
e0c7dfe7 | 3756 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3757 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3758 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3759 | "LED", /* all others */ |
3760 | ); /* R30, R31 */ | |
3761 | ||
4fa6811b HMH |
3762 | static int led_get_status(unsigned int led) |
3763 | { | |
3764 | int status; | |
3765 | ||
3766 | switch (led_supported) { | |
3767 | case TPACPI_LED_570: | |
3768 | if (!acpi_evalf(ec_handle, | |
3769 | &status, "GLED", "dd", 1 << led)) | |
3770 | return -EIO; | |
3771 | return (status == 0)? | |
3772 | TPACPI_LED_OFF : | |
3773 | ((status == 1)? | |
3774 | TPACPI_LED_ON : | |
3775 | TPACPI_LED_BLINK); | |
3776 | default: | |
3777 | return -ENXIO; | |
3778 | } | |
3779 | ||
3780 | /* not reached */ | |
3781 | } | |
3782 | ||
3783 | static int led_set_status(unsigned int led, enum led_status_t ledstatus) | |
3784 | { | |
3785 | /* off, on, blink. Index is led_status_t */ | |
3786 | static const int const led_sled_arg1[] = { 0, 1, 3 }; | |
3787 | static const int const led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3788 | static const int const led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3789 | static const int const led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3790 | ||
3791 | int rc = 0; | |
3792 | ||
3793 | switch (led_supported) { | |
3794 | case TPACPI_LED_570: | |
3795 | /* 570 */ | |
3796 | led = 1 << led; | |
3797 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3798 | led, led_sled_arg1[ledstatus])) | |
3799 | rc = -EIO; | |
3800 | break; | |
3801 | case TPACPI_LED_OLD: | |
3802 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ | |
3803 | led = 1 << led; | |
3804 | rc = ec_write(TPACPI_LED_EC_HLMS, led); | |
3805 | if (rc >= 0) | |
3806 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
3807 | led * led_exp_hlbl[ledstatus]); | |
3808 | if (rc >= 0) | |
3809 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
3810 | led * led_exp_hlcl[ledstatus]); | |
3811 | break; | |
3812 | case TPACPI_LED_NEW: | |
3813 | /* all others */ | |
3814 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3815 | led, led_led_arg1[ledstatus])) | |
3816 | rc = -EIO; | |
3817 | break; | |
3818 | default: | |
3819 | rc = -ENXIO; | |
3820 | } | |
3821 | ||
3822 | return rc; | |
3823 | } | |
3824 | ||
a5763f22 | 3825 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3826 | { |
fe08bc4b HMH |
3827 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3828 | ||
e0c7dfe7 | 3829 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3830 | |
78f81cc4 BD |
3831 | if (!led_handle) |
3832 | /* led not supported on R30, R31 */ | |
efa27145 | 3833 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3834 | else if (strlencmp(led_path, "SLED") == 0) |
3835 | /* 570 */ | |
efa27145 | 3836 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3837 | else if (strlencmp(led_path, "SYSL") == 0) |
3838 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3839 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3840 | else |
3841 | /* all others */ | |
efa27145 | 3842 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3843 | |
fe08bc4b HMH |
3844 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3845 | str_supported(led_supported), led_supported); | |
3846 | ||
5fba344c | 3847 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3848 | } |
3849 | ||
4fa6811b HMH |
3850 | #define str_led_status(s) \ |
3851 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
3852 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
3853 | |
3854 | static int led_read(char *p) | |
1da177e4 LT |
3855 | { |
3856 | int len = 0; | |
3857 | ||
78f81cc4 BD |
3858 | if (!led_supported) { |
3859 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3860 | return len; | |
3861 | } | |
3862 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3863 | ||
efa27145 | 3864 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3865 | /* 570 */ |
3866 | int i, status; | |
3867 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
3868 | status = led_get_status(i); |
3869 | if (status < 0) | |
78f81cc4 BD |
3870 | return -EIO; |
3871 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 3872 | i, str_led_status(status)); |
78f81cc4 BD |
3873 | } |
3874 | } | |
3875 | ||
1da177e4 | 3876 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3877 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3878 | |
3879 | return len; | |
3880 | } | |
3881 | ||
78f81cc4 | 3882 | static int led_write(char *buf) |
1da177e4 LT |
3883 | { |
3884 | char *cmd; | |
4fa6811b HMH |
3885 | int led, rc; |
3886 | enum led_status_t s; | |
78f81cc4 BD |
3887 | |
3888 | if (!led_supported) | |
3889 | return -ENODEV; | |
1da177e4 LT |
3890 | |
3891 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3892 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3893 | return -EINVAL; |
3894 | ||
78f81cc4 | 3895 | if (strstr(cmd, "off")) { |
4fa6811b | 3896 | s = TPACPI_LED_OFF; |
1da177e4 | 3897 | } else if (strstr(cmd, "on")) { |
4fa6811b | 3898 | s = TPACPI_LED_ON; |
78f81cc4 | 3899 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 3900 | s = TPACPI_LED_BLINK; |
78f81cc4 | 3901 | } else { |
4fa6811b | 3902 | return -EINVAL; |
78f81cc4 | 3903 | } |
4fa6811b HMH |
3904 | |
3905 | rc = led_set_status(led, s); | |
3906 | if (rc < 0) | |
3907 | return rc; | |
78f81cc4 BD |
3908 | } |
3909 | ||
3910 | return 0; | |
3911 | } | |
3912 | ||
a5763f22 HMH |
3913 | static struct ibm_struct led_driver_data = { |
3914 | .name = "led", | |
3915 | .read = led_read, | |
3916 | .write = led_write, | |
3917 | }; | |
3918 | ||
56b6aeb0 HMH |
3919 | /************************************************************************* |
3920 | * Beep subdriver | |
3921 | */ | |
3922 | ||
e0c7dfe7 | 3923 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3924 | |
a5763f22 | 3925 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3926 | { |
fe08bc4b HMH |
3927 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3928 | ||
e0c7dfe7 | 3929 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3930 | |
fe08bc4b HMH |
3931 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3932 | str_supported(beep_handle != NULL)); | |
3933 | ||
5fba344c HMH |
3934 | return (beep_handle)? 0 : 1; |
3935 | } | |
3936 | ||
78f81cc4 BD |
3937 | static int beep_read(char *p) |
3938 | { | |
3939 | int len = 0; | |
3940 | ||
3941 | if (!beep_handle) | |
3942 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3943 | else { | |
3944 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3945 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3946 | } | |
3947 | ||
3948 | return len; | |
3949 | } | |
3950 | ||
3951 | static int beep_write(char *buf) | |
3952 | { | |
3953 | char *cmd; | |
3954 | int beep_cmd; | |
3955 | ||
3956 | if (!beep_handle) | |
3957 | return -ENODEV; | |
3958 | ||
3959 | while ((cmd = next_cmd(&buf))) { | |
3960 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3961 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3962 | /* beep_cmd set */ | |
3963 | } else | |
3964 | return -EINVAL; | |
3965 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3966 | return -EIO; | |
3967 | } | |
3968 | ||
3969 | return 0; | |
3970 | } | |
3971 | ||
a5763f22 HMH |
3972 | static struct ibm_struct beep_driver_data = { |
3973 | .name = "beep", | |
3974 | .read = beep_read, | |
3975 | .write = beep_write, | |
3976 | }; | |
3977 | ||
56b6aeb0 HMH |
3978 | /************************************************************************* |
3979 | * Thermal subdriver | |
3980 | */ | |
78f81cc4 | 3981 | |
f74a27d4 HMH |
3982 | enum thermal_access_mode { |
3983 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3984 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3985 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3986 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3987 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3988 | }; | |
3989 | ||
3990 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3991 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3992 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3993 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3994 | }; | |
3995 | ||
3996 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3997 | struct ibm_thermal_sensors_struct { | |
3998 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3999 | }; | |
4000 | ||
a26f878a | 4001 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 4002 | |
b21a15f6 HMH |
4003 | /* idx is zero-based */ |
4004 | static int thermal_get_sensor(int idx, s32 *value) | |
4005 | { | |
4006 | int t; | |
4007 | s8 tmp; | |
4008 | char tmpi[5]; | |
4009 | ||
4010 | t = TP_EC_THERMAL_TMP0; | |
4011 | ||
4012 | switch (thermal_read_mode) { | |
4013 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
4014 | case TPACPI_THERMAL_TPEC_16: | |
4015 | if (idx >= 8 && idx <= 15) { | |
4016 | t = TP_EC_THERMAL_TMP8; | |
4017 | idx -= 8; | |
4018 | } | |
4019 | /* fallthrough */ | |
4020 | #endif | |
4021 | case TPACPI_THERMAL_TPEC_8: | |
4022 | if (idx <= 7) { | |
4023 | if (!acpi_ec_read(t + idx, &tmp)) | |
4024 | return -EIO; | |
4025 | *value = tmp * 1000; | |
4026 | return 0; | |
4027 | } | |
4028 | break; | |
4029 | ||
4030 | case TPACPI_THERMAL_ACPI_UPDT: | |
4031 | if (idx <= 7) { | |
4032 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4033 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
4034 | return -EIO; | |
4035 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4036 | return -EIO; | |
4037 | *value = (t - 2732) * 100; | |
4038 | return 0; | |
4039 | } | |
4040 | break; | |
4041 | ||
4042 | case TPACPI_THERMAL_ACPI_TMP07: | |
4043 | if (idx <= 7) { | |
4044 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4045 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4046 | return -EIO; | |
4047 | if (t > 127 || t < -127) | |
4048 | t = TP_EC_THERMAL_TMP_NA; | |
4049 | *value = t * 1000; | |
4050 | return 0; | |
4051 | } | |
4052 | break; | |
4053 | ||
4054 | case TPACPI_THERMAL_NONE: | |
4055 | default: | |
4056 | return -ENOSYS; | |
4057 | } | |
4058 | ||
4059 | return -EINVAL; | |
4060 | } | |
4061 | ||
4062 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
4063 | { | |
4064 | int res, i; | |
4065 | int n; | |
4066 | ||
4067 | n = 8; | |
4068 | i = 0; | |
4069 | ||
4070 | if (!s) | |
4071 | return -EINVAL; | |
4072 | ||
4073 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
4074 | n = 16; | |
4075 | ||
35ff8b9f | 4076 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
4077 | res = thermal_get_sensor(i, &s->temp[i]); |
4078 | if (res) | |
4079 | return res; | |
4080 | } | |
4081 | ||
4082 | return n; | |
4083 | } | |
f74a27d4 | 4084 | |
2c37aa4e HMH |
4085 | /* sysfs temp##_input -------------------------------------------------- */ |
4086 | ||
4087 | static ssize_t thermal_temp_input_show(struct device *dev, | |
4088 | struct device_attribute *attr, | |
4089 | char *buf) | |
4090 | { | |
4091 | struct sensor_device_attribute *sensor_attr = | |
4092 | to_sensor_dev_attr(attr); | |
4093 | int idx = sensor_attr->index; | |
4094 | s32 value; | |
4095 | int res; | |
4096 | ||
4097 | res = thermal_get_sensor(idx, &value); | |
4098 | if (res) | |
4099 | return res; | |
4100 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
4101 | return -ENXIO; | |
4102 | ||
4103 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
4104 | } | |
4105 | ||
4106 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
4107 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
4108 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
4109 | |
4110 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
4111 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
4112 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
4113 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
4114 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
4115 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
4116 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
4117 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
4118 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
4119 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
4120 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
4121 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
4122 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
4123 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
4124 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
4125 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
4126 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
4127 | }; | |
4128 | ||
4129 | #define THERMAL_ATTRS(X) \ | |
4130 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
4131 | ||
4132 | static struct attribute *thermal_temp_input_attr[] = { | |
4133 | THERMAL_ATTRS(8), | |
4134 | THERMAL_ATTRS(9), | |
4135 | THERMAL_ATTRS(10), | |
4136 | THERMAL_ATTRS(11), | |
4137 | THERMAL_ATTRS(12), | |
4138 | THERMAL_ATTRS(13), | |
4139 | THERMAL_ATTRS(14), | |
4140 | THERMAL_ATTRS(15), | |
4141 | THERMAL_ATTRS(0), | |
4142 | THERMAL_ATTRS(1), | |
4143 | THERMAL_ATTRS(2), | |
4144 | THERMAL_ATTRS(3), | |
4145 | THERMAL_ATTRS(4), | |
4146 | THERMAL_ATTRS(5), | |
4147 | THERMAL_ATTRS(6), | |
4148 | THERMAL_ATTRS(7), | |
4149 | NULL | |
4150 | }; | |
4151 | ||
4152 | static const struct attribute_group thermal_temp_input16_group = { | |
4153 | .attrs = thermal_temp_input_attr | |
4154 | }; | |
4155 | ||
4156 | static const struct attribute_group thermal_temp_input8_group = { | |
4157 | .attrs = &thermal_temp_input_attr[8] | |
4158 | }; | |
4159 | ||
4160 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4161 | #undef THERMAL_ATTRS | |
4162 | ||
4163 | /* --------------------------------------------------------------------- */ | |
4164 | ||
a5763f22 | 4165 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4166 | { |
60eb0b35 HMH |
4167 | u8 t, ta1, ta2; |
4168 | int i; | |
5fba344c | 4169 | int acpi_tmp7; |
2c37aa4e | 4170 | int res; |
5fba344c | 4171 | |
fe08bc4b HMH |
4172 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4173 | ||
5fba344c | 4174 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4175 | |
3d6f99ca | 4176 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4177 | /* |
4178 | * Direct EC access mode: sensors at registers | |
4179 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4180 | * non-implemented, thermal sensors return 0x80 when | |
4181 | * not available | |
4182 | */ | |
78f81cc4 | 4183 | |
60eb0b35 HMH |
4184 | ta1 = ta2 = 0; |
4185 | for (i = 0; i < 8; i++) { | |
04cc862c | 4186 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4187 | ta1 |= t; |
4188 | } else { | |
4189 | ta1 = 0; | |
4190 | break; | |
4191 | } | |
04cc862c | 4192 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4193 | ta2 |= t; |
4194 | } else { | |
4195 | ta1 = 0; | |
4196 | break; | |
4197 | } | |
4198 | } | |
4199 | if (ta1 == 0) { | |
4200 | /* This is sheer paranoia, but we handle it anyway */ | |
4201 | if (acpi_tmp7) { | |
e0c7dfe7 | 4202 | printk(TPACPI_ERR |
60eb0b35 | 4203 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
4204 | "falling back to ACPI TMPx access " |
4205 | "mode\n"); | |
efa27145 | 4206 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 4207 | } else { |
e0c7dfe7 | 4208 | printk(TPACPI_ERR |
60eb0b35 HMH |
4209 | "ThinkPad ACPI EC access misbehaving, " |
4210 | "disabling thermal sensors access\n"); | |
efa27145 | 4211 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4212 | } |
4213 | } else { | |
4214 | thermal_read_mode = | |
4215 | (ta2 != 0) ? | |
efa27145 | 4216 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4217 | } |
4218 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4219 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4220 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4221 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4222 | } else { |
4223 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4224 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4225 | } |
4226 | } else { | |
4227 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4228 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4229 | } |
78f81cc4 | 4230 | |
fe08bc4b HMH |
4231 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4232 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4233 | thermal_read_mode); | |
4234 | ||
35ff8b9f | 4235 | switch (thermal_read_mode) { |
2c37aa4e | 4236 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4237 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4238 | &thermal_temp_input16_group); |
4239 | if (res) | |
4240 | return res; | |
4241 | break; | |
4242 | case TPACPI_THERMAL_TPEC_8: | |
4243 | case TPACPI_THERMAL_ACPI_TMP07: | |
4244 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4245 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4246 | &thermal_temp_input8_group); |
4247 | if (res) | |
4248 | return res; | |
4249 | break; | |
4250 | case TPACPI_THERMAL_NONE: | |
4251 | default: | |
4252 | return 1; | |
4253 | } | |
4254 | ||
4255 | return 0; | |
4256 | } | |
4257 | ||
4258 | static void thermal_exit(void) | |
4259 | { | |
35ff8b9f | 4260 | switch (thermal_read_mode) { |
2c37aa4e | 4261 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4262 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4263 | &thermal_temp_input16_group); |
4264 | break; | |
4265 | case TPACPI_THERMAL_TPEC_8: | |
4266 | case TPACPI_THERMAL_ACPI_TMP07: | |
4267 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4268 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4269 | &thermal_temp_input16_group); |
4270 | break; | |
4271 | case TPACPI_THERMAL_NONE: | |
4272 | default: | |
4273 | break; | |
4274 | } | |
78f81cc4 BD |
4275 | } |
4276 | ||
a26f878a HMH |
4277 | static int thermal_read(char *p) |
4278 | { | |
4279 | int len = 0; | |
4280 | int n, i; | |
4281 | struct ibm_thermal_sensors_struct t; | |
4282 | ||
4283 | n = thermal_get_sensors(&t); | |
4284 | if (unlikely(n < 0)) | |
4285 | return n; | |
4286 | ||
4287 | len += sprintf(p + len, "temperatures:\t"); | |
4288 | ||
4289 | if (n > 0) { | |
4290 | for (i = 0; i < (n - 1); i++) | |
4291 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4292 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4293 | } else | |
4294 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4295 | |
4296 | return len; | |
4297 | } | |
4298 | ||
a5763f22 HMH |
4299 | static struct ibm_struct thermal_driver_data = { |
4300 | .name = "thermal", | |
4301 | .read = thermal_read, | |
2c37aa4e | 4302 | .exit = thermal_exit, |
a5763f22 HMH |
4303 | }; |
4304 | ||
56b6aeb0 HMH |
4305 | /************************************************************************* |
4306 | * EC Dump subdriver | |
4307 | */ | |
4308 | ||
78f81cc4 BD |
4309 | static u8 ecdump_regs[256]; |
4310 | ||
4311 | static int ecdump_read(char *p) | |
4312 | { | |
4313 | int len = 0; | |
4314 | int i, j; | |
4315 | u8 v; | |
4316 | ||
4317 | len += sprintf(p + len, "EC " | |
4318 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4319 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4320 | for (i = 0; i < 256; i += 16) { | |
4321 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4322 | for (j = 0; j < 16; j++) { | |
4323 | if (!acpi_ec_read(i + j, &v)) | |
4324 | break; | |
4325 | if (v != ecdump_regs[i + j]) | |
4326 | len += sprintf(p + len, " *%02x", v); | |
4327 | else | |
4328 | len += sprintf(p + len, " %02x", v); | |
4329 | ecdump_regs[i + j] = v; | |
4330 | } | |
4331 | len += sprintf(p + len, "\n"); | |
4332 | if (j != 16) | |
4333 | break; | |
4334 | } | |
4335 | ||
4336 | /* These are way too dangerous to advertise openly... */ | |
4337 | #if 0 | |
4338 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4339 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4340 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4341 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4342 | #endif | |
4343 | return len; | |
4344 | } | |
4345 | ||
4346 | static int ecdump_write(char *buf) | |
4347 | { | |
4348 | char *cmd; | |
4349 | int i, v; | |
4350 | ||
4351 | while ((cmd = next_cmd(&buf))) { | |
4352 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4353 | /* i and v set */ | |
4354 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4355 | /* i and v set */ | |
4356 | } else | |
4357 | return -EINVAL; | |
4358 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4359 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4360 | return -EIO; |
4361 | } else | |
4362 | return -EINVAL; | |
4363 | } | |
4364 | ||
4365 | return 0; | |
78f81cc4 BD |
4366 | } |
4367 | ||
a5763f22 HMH |
4368 | static struct ibm_struct ecdump_driver_data = { |
4369 | .name = "ecdump", | |
4370 | .read = ecdump_read, | |
4371 | .write = ecdump_write, | |
92641177 | 4372 | .flags.experimental = 1, |
a5763f22 HMH |
4373 | }; |
4374 | ||
56b6aeb0 HMH |
4375 | /************************************************************************* |
4376 | * Backlight/brightness subdriver | |
4377 | */ | |
4378 | ||
f74a27d4 HMH |
4379 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4380 | ||
e11aecf1 HMH |
4381 | enum { |
4382 | TP_EC_BACKLIGHT = 0x31, | |
4383 | ||
4384 | /* TP_EC_BACKLIGHT bitmasks */ | |
4385 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
4386 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
4387 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
4388 | }; | |
4389 | ||
94954cc6 | 4390 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4391 | static int brightness_mode; |
4392 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4393 | ||
b21a15f6 | 4394 | static struct mutex brightness_mutex; |
56b6aeb0 | 4395 | |
b21a15f6 HMH |
4396 | /* |
4397 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4398 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
e11aecf1 HMH |
4399 | * |
4400 | * EC 0x31 has the following layout | |
4401 | * Bit 7: unknown function | |
4402 | * Bit 6: unknown function | |
4403 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
4404 | * Bit 4: must be set to zero to avoid problems | |
4405 | * Bit 3-0: backlight brightness level | |
4406 | * | |
4407 | * brightness_get_raw returns status data in the EC 0x31 layout | |
b21a15f6 | 4408 | */ |
e11aecf1 | 4409 | static int brightness_get_raw(int *status) |
b21a15f6 HMH |
4410 | { |
4411 | u8 lec = 0, lcmos = 0, level = 0; | |
4412 | ||
4413 | if (brightness_mode & 1) { | |
e11aecf1 | 4414 | if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) |
b21a15f6 | 4415 | return -EIO; |
e11aecf1 | 4416 | level = lec & TP_EC_BACKLIGHT_LVLMSK; |
b21a15f6 HMH |
4417 | }; |
4418 | if (brightness_mode & 2) { | |
4419 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4420 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4421 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4422 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4423 | level = lcmos; | |
4424 | } | |
4425 | ||
2d5e94d7 | 4426 | if (brightness_mode == 3) { |
e11aecf1 HMH |
4427 | *status = lec; /* Prefer EC, CMOS is just a backing store */ |
4428 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
2d5e94d7 HMH |
4429 | if (lec == lcmos) |
4430 | tp_warned.bright_cmos_ec_unsync = 0; | |
4431 | else { | |
4432 | if (!tp_warned.bright_cmos_ec_unsync) { | |
4433 | printk(TPACPI_ERR | |
4434 | "CMOS NVRAM (%u) and EC (%u) do not " | |
4435 | "agree on display brightness level\n", | |
4436 | (unsigned int) lcmos, | |
4437 | (unsigned int) lec); | |
4438 | tp_warned.bright_cmos_ec_unsync = 1; | |
4439 | } | |
4440 | return -EIO; | |
4441 | } | |
e11aecf1 HMH |
4442 | } else { |
4443 | *status = level; | |
b21a15f6 HMH |
4444 | } |
4445 | ||
e11aecf1 | 4446 | return 0; |
b21a15f6 HMH |
4447 | } |
4448 | ||
4449 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4450 | static int brightness_set(int value) | |
4451 | { | |
4452 | int cmos_cmd, inc, i, res; | |
4453 | int current_value; | |
e11aecf1 | 4454 | int command_bits; |
b21a15f6 | 4455 | |
e11aecf1 HMH |
4456 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
4457 | value < 0) | |
b21a15f6 HMH |
4458 | return -EINVAL; |
4459 | ||
4460 | res = mutex_lock_interruptible(&brightness_mutex); | |
4461 | if (res < 0) | |
4462 | return res; | |
4463 | ||
e11aecf1 HMH |
4464 | res = brightness_get_raw(¤t_value); |
4465 | if (res < 0) | |
b21a15f6 | 4466 | goto errout; |
e11aecf1 HMH |
4467 | |
4468 | command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; | |
4469 | current_value &= TP_EC_BACKLIGHT_LVLMSK; | |
b21a15f6 HMH |
4470 | |
4471 | cmos_cmd = value > current_value ? | |
4472 | TP_CMOS_BRIGHTNESS_UP : | |
4473 | TP_CMOS_BRIGHTNESS_DOWN; | |
4474 | inc = (value > current_value)? 1 : -1; | |
4475 | ||
4476 | res = 0; | |
4477 | for (i = current_value; i != value; i += inc) { | |
4478 | if ((brightness_mode & 2) && | |
4479 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4480 | res = -EIO; | |
4481 | goto errout; | |
4482 | } | |
4483 | if ((brightness_mode & 1) && | |
e11aecf1 HMH |
4484 | !acpi_ec_write(TP_EC_BACKLIGHT, |
4485 | (i + inc) | command_bits)) { | |
b21a15f6 HMH |
4486 | res = -EIO; |
4487 | goto errout;; | |
4488 | } | |
4489 | } | |
4490 | ||
4491 | errout: | |
4492 | mutex_unlock(&brightness_mutex); | |
4493 | return res; | |
4494 | } | |
4495 | ||
4496 | /* sysfs backlight class ----------------------------------------------- */ | |
4497 | ||
4498 | static int brightness_update_status(struct backlight_device *bd) | |
4499 | { | |
4500 | /* it is the backlight class's job (caller) to handle | |
4501 | * EINTR and other errors properly */ | |
4502 | return brightness_set( | |
4503 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4504 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4505 | bd->props.brightness : 0); | |
4506 | } | |
4507 | ||
e11aecf1 HMH |
4508 | static int brightness_get(struct backlight_device *bd) |
4509 | { | |
4510 | int status, res; | |
4511 | ||
4512 | res = brightness_get_raw(&status); | |
4513 | if (res < 0) | |
4514 | return 0; /* FIXME: teach backlight about error handling */ | |
4515 | ||
4516 | return status & TP_EC_BACKLIGHT_LVLMSK; | |
4517 | } | |
4518 | ||
b21a15f6 | 4519 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
4520 | .get_brightness = brightness_get, |
4521 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4522 | }; |
4523 | ||
b21a15f6 | 4524 | /* --------------------------------------------------------------------- */ |
f432255e | 4525 | |
a5763f22 | 4526 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4527 | { |
4528 | int b; | |
4529 | ||
fe08bc4b HMH |
4530 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4531 | ||
f432255e HMH |
4532 | mutex_init(&brightness_mutex); |
4533 | ||
b5972796 HMH |
4534 | /* |
4535 | * We always attempt to detect acpi support, so as to switch | |
4536 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
4537 | * going to publish a backlight interface | |
4538 | */ | |
4539 | b = tpacpi_check_std_acpi_brightness_support(); | |
4540 | if (b > 0) { | |
4541 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
4542 | printk(TPACPI_NOTICE | |
4543 | "Lenovo BIOS switched to ACPI backlight " | |
4544 | "control mode\n"); | |
4545 | } | |
4546 | if (brightness_enable > 1) { | |
e0c7dfe7 | 4547 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4548 | "standard ACPI backlight interface " |
4549 | "available, not loading native one...\n"); | |
e11e211a HMH |
4550 | return 1; |
4551 | } | |
87cc537a HMH |
4552 | } |
4553 | ||
b5972796 HMH |
4554 | if (!brightness_enable) { |
4555 | dbg_printk(TPACPI_DBG_INIT, | |
4556 | "brightness support disabled by " | |
4557 | "module parameter\n"); | |
4558 | return 1; | |
4559 | } | |
4560 | ||
4561 | if (b > 16) { | |
4562 | printk(TPACPI_ERR | |
4563 | "Unsupported brightness interface, " | |
4564 | "please contact %s\n", TPACPI_MAIL); | |
4565 | return 1; | |
4566 | } | |
4567 | if (b == 16) | |
4568 | tp_features.bright_16levels = 1; | |
4569 | ||
24d3b774 HMH |
4570 | if (!brightness_mode) { |
4571 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4572 | brightness_mode = 2; | |
4573 | else | |
4574 | brightness_mode = 3; | |
4575 | ||
4576 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4577 | brightness_mode); | |
4578 | } | |
4579 | ||
4580 | if (brightness_mode > 3) | |
4581 | return -EINVAL; | |
4582 | ||
e11aecf1 | 4583 | if (brightness_get_raw(&b) < 0) |
24d3b774 | 4584 | return 1; |
56b6aeb0 | 4585 | |
a3f104c0 | 4586 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4587 | printk(TPACPI_INFO |
4588 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4589 | |
7d5a015e HMH |
4590 | ibm_backlight_device = backlight_device_register( |
4591 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4592 | &ibm_backlight_data); | |
56b6aeb0 | 4593 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4594 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4595 | return PTR_ERR(ibm_backlight_device); |
4596 | } | |
fe08bc4b | 4597 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4598 | |
a3f104c0 HMH |
4599 | ibm_backlight_device->props.max_brightness = |
4600 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 4601 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
4602 | backlight_update_status(ibm_backlight_device); |
4603 | ||
4604 | return 0; | |
4605 | } | |
4606 | ||
4607 | static void brightness_exit(void) | |
4608 | { | |
4609 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4610 | vdbg_printk(TPACPI_DBG_EXIT, |
4611 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4612 | backlight_device_unregister(ibm_backlight_device); |
4613 | ibm_backlight_device = NULL; | |
4614 | } | |
4615 | } | |
4616 | ||
56b6aeb0 HMH |
4617 | static int brightness_read(char *p) |
4618 | { | |
4619 | int len = 0; | |
4620 | int level; | |
4621 | ||
35ff8b9f HMH |
4622 | level = brightness_get(NULL); |
4623 | if (level < 0) { | |
56b6aeb0 HMH |
4624 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4625 | } else { | |
a3f104c0 | 4626 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4627 | len += sprintf(p + len, "commands:\tup, down\n"); |
4628 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4629 | " (<level> is 0-%d)\n", |
4630 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4631 | } |
4632 | ||
4633 | return len; | |
4634 | } | |
4635 | ||
8acb0250 HM |
4636 | static int brightness_write(char *buf) |
4637 | { | |
4638 | int level; | |
4273af8d | 4639 | int rc; |
1da177e4 | 4640 | char *cmd; |
a3f104c0 | 4641 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4642 | |
4273af8d HMH |
4643 | level = brightness_get(NULL); |
4644 | if (level < 0) | |
4645 | return level; | |
78f81cc4 | 4646 | |
4273af8d | 4647 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4648 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4649 | if (level < max_level) |
4650 | level++; | |
78f81cc4 | 4651 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4652 | if (level > 0) |
4653 | level--; | |
4654 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4655 | level >= 0 && level <= max_level) { | |
4656 | /* new level set */ | |
78f81cc4 BD |
4657 | } else |
4658 | return -EINVAL; | |
78f81cc4 BD |
4659 | } |
4660 | ||
4273af8d HMH |
4661 | /* |
4662 | * Now we know what the final level should be, so we try to set it. | |
4663 | * Doing it this way makes the syscall restartable in case of EINTR | |
4664 | */ | |
4665 | rc = brightness_set(level); | |
4666 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4667 | } |
4668 | ||
a5763f22 HMH |
4669 | static struct ibm_struct brightness_driver_data = { |
4670 | .name = "brightness", | |
4671 | .read = brightness_read, | |
4672 | .write = brightness_write, | |
4673 | .exit = brightness_exit, | |
4674 | }; | |
4675 | ||
56b6aeb0 HMH |
4676 | /************************************************************************* |
4677 | * Volume subdriver | |
4678 | */ | |
fb87a811 | 4679 | |
f74a27d4 HMH |
4680 | static int volume_offset = 0x30; |
4681 | ||
78f81cc4 BD |
4682 | static int volume_read(char *p) |
4683 | { | |
4684 | int len = 0; | |
4685 | u8 level; | |
4686 | ||
4687 | if (!acpi_ec_read(volume_offset, &level)) { | |
4688 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4689 | } else { | |
4690 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4691 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4692 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4693 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4694 | " (<level> is 0-15)\n"); | |
4695 | } | |
4696 | ||
4697 | return len; | |
4698 | } | |
4699 | ||
78f81cc4 BD |
4700 | static int volume_write(char *buf) |
4701 | { | |
4702 | int cmos_cmd, inc, i; | |
4703 | u8 level, mute; | |
4704 | int new_level, new_mute; | |
4705 | char *cmd; | |
4706 | ||
4707 | while ((cmd = next_cmd(&buf))) { | |
4708 | if (!acpi_ec_read(volume_offset, &level)) | |
4709 | return -EIO; | |
4710 | new_mute = mute = level & 0x40; | |
4711 | new_level = level = level & 0xf; | |
4712 | ||
4713 | if (strlencmp(cmd, "up") == 0) { | |
4714 | if (mute) | |
4715 | new_mute = 0; | |
4716 | else | |
4717 | new_level = level == 15 ? 15 : level + 1; | |
4718 | } else if (strlencmp(cmd, "down") == 0) { | |
4719 | if (mute) | |
4720 | new_mute = 0; | |
4721 | else | |
4722 | new_level = level == 0 ? 0 : level - 1; | |
4723 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4724 | new_level >= 0 && new_level <= 15) { | |
4725 | /* new_level set */ | |
4726 | } else if (strlencmp(cmd, "mute") == 0) { | |
4727 | new_mute = 0x40; | |
1da177e4 LT |
4728 | } else |
4729 | return -EINVAL; | |
4730 | ||
35ff8b9f HMH |
4731 | if (new_level != level) { |
4732 | /* mute doesn't change */ | |
4733 | ||
4734 | cmos_cmd = (new_level > level) ? | |
4735 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4736 | inc = new_level > level ? 1 : -1; |
4737 | ||
c9bea99c | 4738 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4739 | !acpi_ec_write(volume_offset, level))) |
4740 | return -EIO; | |
4741 | ||
4742 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4743 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4744 | !acpi_ec_write(volume_offset, i + inc)) |
4745 | return -EIO; | |
4746 | ||
35ff8b9f HMH |
4747 | if (mute && |
4748 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4749 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4750 | return -EIO; |
35ff8b9f | 4751 | } |
78f81cc4 BD |
4752 | } |
4753 | ||
35ff8b9f HMH |
4754 | if (new_mute != mute) { |
4755 | /* level doesn't change */ | |
4756 | ||
4757 | cmos_cmd = (new_mute) ? | |
4758 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4759 | |
c9bea99c | 4760 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4761 | !acpi_ec_write(volume_offset, level + new_mute)) |
4762 | return -EIO; | |
4763 | } | |
4764 | } | |
4765 | ||
4766 | return 0; | |
4767 | } | |
4768 | ||
a5763f22 HMH |
4769 | static struct ibm_struct volume_driver_data = { |
4770 | .name = "volume", | |
4771 | .read = volume_read, | |
4772 | .write = volume_write, | |
4773 | }; | |
56b6aeb0 HMH |
4774 | |
4775 | /************************************************************************* | |
4776 | * Fan subdriver | |
4777 | */ | |
4778 | ||
4779 | /* | |
4780 | * FAN ACCESS MODES | |
4781 | * | |
efa27145 | 4782 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4783 | * ACPI GFAN method: returns fan level |
4784 | * | |
efa27145 | 4785 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4786 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4787 | * |
efa27145 | 4788 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4789 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4790 | * | |
f51d1a39 HMH |
4791 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4792 | * it for writing. | |
56b6aeb0 | 4793 | * |
efa27145 | 4794 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4795 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4796 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4797 | * |
4798 | * Fan speed changes of any sort (including those caused by the | |
4799 | * disengaged mode) are usually done slowly by the firmware as the | |
4800 | * maximum ammount of fan duty cycle change per second seems to be | |
4801 | * limited. | |
4802 | * | |
4803 | * Reading is not available if GFAN exists. | |
4804 | * Writing is not available if SFAN exists. | |
4805 | * | |
4806 | * Bits | |
4807 | * 7 automatic mode engaged; | |
4808 | * (default operation mode of the ThinkPad) | |
4809 | * fan level is ignored in this mode. | |
f51d1a39 | 4810 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4811 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4812 | * the tachometer while the fan controller ramps up |
4813 | * the speed (which can take up to a few *minutes*). | |
4814 | * Speeds up fan to 100% duty-cycle, which is far above | |
4815 | * the standard RPM levels. It is not impossible that | |
4816 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4817 | * 5-3 unused in some models. Extra bits for fan level |
4818 | * in others, but still useless as all values above | |
4819 | * 7 map to the same speed as level 7 in these models. | |
4820 | * 2-0 fan level (0..7 usually) | |
4821 | * 0x00 = stop | |
4822 | * 0x07 = max (set when temperatures critical) | |
4823 | * Some ThinkPads may have other levels, see | |
efa27145 | 4824 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4825 | * |
4826 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4827 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4828 | * does so, its initial value is meaningless (0x07). | |
4829 | * | |
4830 | * For firmware bugs, refer to: | |
4831 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4832 | * | |
4833 | * ---- | |
4834 | * | |
4835 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4836 | * Main fan tachometer reading (in RPM) | |
4837 | * | |
4838 | * This register is present on all ThinkPads with a new-style EC, and | |
4839 | * it is known not to be present on the A21m/e, and T22, as there is | |
4840 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4841 | * ThinkPads from this same time period (and earlier) probably lack the | |
4842 | * tachometer as well. | |
4843 | * | |
4844 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4845 | * was never fixed by IBM to report the EC firmware version string | |
4846 | * probably support the tachometer (like the early X models), so | |
4847 | * detecting it is quite hard. We need more data to know for sure. | |
4848 | * | |
4849 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4850 | * might result. | |
4851 | * | |
f51d1a39 HMH |
4852 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4853 | * mode. | |
56b6aeb0 HMH |
4854 | * |
4855 | * For firmware bugs, refer to: | |
4856 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4857 | * | |
efa27145 | 4858 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4859 | * ThinkPad X31, X40, X41. Not available in the X60. |
4860 | * | |
4861 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4862 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4863 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4864 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4865 | * | |
4866 | * The speeds are stored on handles | |
4867 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4868 | * | |
4869 | * There are three default speed sets, acessible as handles: | |
4870 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4871 | * | |
4872 | * ACPI DSDT switches which set is in use depending on various | |
4873 | * factors. | |
4874 | * | |
efa27145 | 4875 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4876 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4877 | * but the ACPI tables just mention level 7. | |
4878 | */ | |
4879 | ||
f74a27d4 HMH |
4880 | enum { /* Fan control constants */ |
4881 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4882 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4883 | * 0x84 must be read before 0x85 */ | |
4884 | ||
4885 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4886 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4887 | ||
4888 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4889 | }; | |
4890 | ||
4891 | enum fan_status_access_mode { | |
4892 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4893 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4894 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4895 | }; | |
4896 | ||
4897 | enum fan_control_access_mode { | |
4898 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4899 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4900 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4901 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4902 | }; | |
4903 | ||
4904 | enum fan_control_commands { | |
4905 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4906 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4907 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4908 | * and also watchdog cmd */ | |
4909 | }; | |
4910 | ||
4911 | static int fan_control_allowed; | |
4912 | ||
69ba91cb HMH |
4913 | static enum fan_status_access_mode fan_status_access_mode; |
4914 | static enum fan_control_access_mode fan_control_access_mode; | |
4915 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4916 | |
778b4d74 | 4917 | static u8 fan_control_initial_status; |
fe98a52c | 4918 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4919 | static int fan_watchdog_maxinterval; |
4920 | ||
4921 | static struct mutex fan_mutex; | |
778b4d74 | 4922 | |
25c68a33 | 4923 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4924 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4925 | |
e0c7dfe7 HMH |
4926 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4927 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4928 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4929 | ); /* all others */ | |
e0c7dfe7 | 4930 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4931 | "JFNS", /* 770x-JL */ |
4932 | ); /* all others */ | |
4933 | ||
fe98a52c | 4934 | /* |
b21a15f6 | 4935 | * Call with fan_mutex held |
fe98a52c | 4936 | */ |
b21a15f6 | 4937 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4938 | { |
b21a15f6 HMH |
4939 | if ((status & |
4940 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4941 | if (status > 7) | |
4942 | fan_control_desired_level = 7; | |
4943 | else | |
4944 | fan_control_desired_level = status; | |
4945 | } | |
4946 | } | |
fe98a52c | 4947 | |
b21a15f6 HMH |
4948 | static int fan_get_status(u8 *status) |
4949 | { | |
4950 | u8 s; | |
fe98a52c | 4951 | |
b21a15f6 HMH |
4952 | /* TODO: |
4953 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4954 | |
b21a15f6 HMH |
4955 | switch (fan_status_access_mode) { |
4956 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4957 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4958 | |
b21a15f6 HMH |
4959 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4960 | return -EIO; | |
fe98a52c | 4961 | |
b21a15f6 HMH |
4962 | if (likely(status)) |
4963 | *status = s & 0x07; | |
fe98a52c | 4964 | |
b21a15f6 HMH |
4965 | break; |
4966 | ||
4967 | case TPACPI_FAN_RD_TPEC: | |
4968 | /* all except 570, 600e/x, 770e, 770x */ | |
4969 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4970 | return -EIO; | |
4971 | ||
4972 | if (likely(status)) | |
4973 | *status = s; | |
fe98a52c | 4974 | |
fe98a52c | 4975 | break; |
b21a15f6 | 4976 | |
fe98a52c | 4977 | default: |
b21a15f6 | 4978 | return -ENXIO; |
fe98a52c HMH |
4979 | } |
4980 | ||
b21a15f6 HMH |
4981 | return 0; |
4982 | } | |
fe98a52c | 4983 | |
b21a15f6 HMH |
4984 | static int fan_get_status_safe(u8 *status) |
4985 | { | |
4986 | int rc; | |
4987 | u8 s; | |
fe98a52c | 4988 | |
b21a15f6 HMH |
4989 | if (mutex_lock_interruptible(&fan_mutex)) |
4990 | return -ERESTARTSYS; | |
4991 | rc = fan_get_status(&s); | |
4992 | if (!rc) | |
4993 | fan_update_desired_level(s); | |
4994 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4995 | |
b21a15f6 HMH |
4996 | if (status) |
4997 | *status = s; | |
fe98a52c | 4998 | |
b21a15f6 HMH |
4999 | return rc; |
5000 | } | |
5001 | ||
5002 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 5003 | { |
b21a15f6 | 5004 | u8 hi, lo; |
fe98a52c | 5005 | |
b21a15f6 HMH |
5006 | switch (fan_status_access_mode) { |
5007 | case TPACPI_FAN_RD_TPEC: | |
5008 | /* all except 570, 600e/x, 770e, 770x */ | |
5009 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
5010 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
5011 | return -EIO; | |
fe98a52c | 5012 | |
b21a15f6 HMH |
5013 | if (likely(speed)) |
5014 | *speed = (hi << 8) | lo; | |
fe98a52c | 5015 | |
b21a15f6 | 5016 | break; |
fe98a52c | 5017 | |
b21a15f6 HMH |
5018 | default: |
5019 | return -ENXIO; | |
5020 | } | |
fe98a52c | 5021 | |
b21a15f6 | 5022 | return 0; |
fe98a52c HMH |
5023 | } |
5024 | ||
b21a15f6 | 5025 | static int fan_set_level(int level) |
fe98a52c | 5026 | { |
b21a15f6 HMH |
5027 | if (!fan_control_allowed) |
5028 | return -EPERM; | |
fe98a52c | 5029 | |
b21a15f6 HMH |
5030 | switch (fan_control_access_mode) { |
5031 | case TPACPI_FAN_WR_ACPI_SFAN: | |
5032 | if (level >= 0 && level <= 7) { | |
5033 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
5034 | return -EIO; | |
5035 | } else | |
5036 | return -EINVAL; | |
5037 | break; | |
fe98a52c | 5038 | |
b21a15f6 HMH |
5039 | case TPACPI_FAN_WR_ACPI_FANS: |
5040 | case TPACPI_FAN_WR_TPEC: | |
5041 | if ((level != TP_EC_FAN_AUTO) && | |
5042 | (level != TP_EC_FAN_FULLSPEED) && | |
5043 | ((level < 0) || (level > 7))) | |
5044 | return -EINVAL; | |
fe98a52c | 5045 | |
b21a15f6 HMH |
5046 | /* safety net should the EC not support AUTO |
5047 | * or FULLSPEED mode bits and just ignore them */ | |
5048 | if (level & TP_EC_FAN_FULLSPEED) | |
5049 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 5050 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 5051 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 5052 | |
b21a15f6 HMH |
5053 | if (!acpi_ec_write(fan_status_offset, level)) |
5054 | return -EIO; | |
5055 | else | |
5056 | tp_features.fan_ctrl_status_undef = 0; | |
5057 | break; | |
fe98a52c | 5058 | |
b21a15f6 HMH |
5059 | default: |
5060 | return -ENXIO; | |
5061 | } | |
5062 | return 0; | |
fe98a52c HMH |
5063 | } |
5064 | ||
b21a15f6 | 5065 | static int fan_set_level_safe(int level) |
fe98a52c | 5066 | { |
b21a15f6 | 5067 | int rc; |
fe98a52c | 5068 | |
b21a15f6 HMH |
5069 | if (!fan_control_allowed) |
5070 | return -EPERM; | |
fe98a52c | 5071 | |
b21a15f6 HMH |
5072 | if (mutex_lock_interruptible(&fan_mutex)) |
5073 | return -ERESTARTSYS; | |
fe98a52c | 5074 | |
b21a15f6 HMH |
5075 | if (level == TPACPI_FAN_LAST_LEVEL) |
5076 | level = fan_control_desired_level; | |
fe98a52c | 5077 | |
b21a15f6 HMH |
5078 | rc = fan_set_level(level); |
5079 | if (!rc) | |
5080 | fan_update_desired_level(level); | |
5081 | ||
5082 | mutex_unlock(&fan_mutex); | |
5083 | return rc; | |
fe98a52c HMH |
5084 | } |
5085 | ||
b21a15f6 | 5086 | static int fan_set_enable(void) |
fe98a52c | 5087 | { |
b21a15f6 HMH |
5088 | u8 s; |
5089 | int rc; | |
fe98a52c | 5090 | |
ecf2a80a HMH |
5091 | if (!fan_control_allowed) |
5092 | return -EPERM; | |
5093 | ||
b21a15f6 HMH |
5094 | if (mutex_lock_interruptible(&fan_mutex)) |
5095 | return -ERESTARTSYS; | |
fe98a52c | 5096 | |
b21a15f6 HMH |
5097 | switch (fan_control_access_mode) { |
5098 | case TPACPI_FAN_WR_ACPI_FANS: | |
5099 | case TPACPI_FAN_WR_TPEC: | |
5100 | rc = fan_get_status(&s); | |
5101 | if (rc < 0) | |
5102 | break; | |
fe98a52c | 5103 | |
b21a15f6 HMH |
5104 | /* Don't go out of emergency fan mode */ |
5105 | if (s != 7) { | |
5106 | s &= 0x07; | |
5107 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
5108 | } | |
fe98a52c | 5109 | |
b21a15f6 HMH |
5110 | if (!acpi_ec_write(fan_status_offset, s)) |
5111 | rc = -EIO; | |
5112 | else { | |
5113 | tp_features.fan_ctrl_status_undef = 0; | |
5114 | rc = 0; | |
5115 | } | |
5116 | break; | |
fe98a52c | 5117 | |
b21a15f6 HMH |
5118 | case TPACPI_FAN_WR_ACPI_SFAN: |
5119 | rc = fan_get_status(&s); | |
5120 | if (rc < 0) | |
5121 | break; | |
fe98a52c | 5122 | |
b21a15f6 | 5123 | s &= 0x07; |
fe98a52c | 5124 | |
b21a15f6 HMH |
5125 | /* Set fan to at least level 4 */ |
5126 | s |= 4; | |
fe08bc4b | 5127 | |
b21a15f6 | 5128 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 5129 | rc = -EIO; |
b21a15f6 HMH |
5130 | else |
5131 | rc = 0; | |
5132 | break; | |
78f81cc4 | 5133 | |
b21a15f6 HMH |
5134 | default: |
5135 | rc = -ENXIO; | |
5136 | } | |
5fba344c | 5137 | |
b21a15f6 HMH |
5138 | mutex_unlock(&fan_mutex); |
5139 | return rc; | |
69ba91cb | 5140 | } |
78f81cc4 | 5141 | |
b21a15f6 | 5142 | static int fan_set_disable(void) |
78f81cc4 | 5143 | { |
b21a15f6 | 5144 | int rc; |
c52f0aa5 | 5145 | |
b21a15f6 HMH |
5146 | if (!fan_control_allowed) |
5147 | return -EPERM; | |
78f81cc4 | 5148 | |
b21a15f6 HMH |
5149 | if (mutex_lock_interruptible(&fan_mutex)) |
5150 | return -ERESTARTSYS; | |
3ef8a609 | 5151 | |
b21a15f6 HMH |
5152 | rc = 0; |
5153 | switch (fan_control_access_mode) { | |
5154 | case TPACPI_FAN_WR_ACPI_FANS: | |
5155 | case TPACPI_FAN_WR_TPEC: | |
5156 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
5157 | rc = -EIO; | |
5158 | else { | |
5159 | fan_control_desired_level = 0; | |
5160 | tp_features.fan_ctrl_status_undef = 0; | |
5161 | } | |
3ef8a609 HMH |
5162 | break; |
5163 | ||
b21a15f6 HMH |
5164 | case TPACPI_FAN_WR_ACPI_SFAN: |
5165 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
5166 | rc = -EIO; | |
5167 | else | |
5168 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
5169 | break; |
5170 | ||
5171 | default: | |
b21a15f6 | 5172 | rc = -ENXIO; |
78f81cc4 BD |
5173 | } |
5174 | ||
fe98a52c | 5175 | |
fe98a52c | 5176 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5177 | return rc; |
5178 | } | |
5179 | ||
b21a15f6 | 5180 | static int fan_set_speed(int speed) |
c52f0aa5 | 5181 | { |
b21a15f6 | 5182 | int rc; |
c52f0aa5 | 5183 | |
b21a15f6 HMH |
5184 | if (!fan_control_allowed) |
5185 | return -EPERM; | |
3ef8a609 | 5186 | |
b21a15f6 HMH |
5187 | if (mutex_lock_interruptible(&fan_mutex)) |
5188 | return -ERESTARTSYS; | |
c52f0aa5 | 5189 | |
b21a15f6 HMH |
5190 | rc = 0; |
5191 | switch (fan_control_access_mode) { | |
5192 | case TPACPI_FAN_WR_ACPI_FANS: | |
5193 | if (speed >= 0 && speed <= 65535) { | |
5194 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5195 | speed, speed, speed)) | |
5196 | rc = -EIO; | |
5197 | } else | |
5198 | rc = -EINVAL; | |
c52f0aa5 HMH |
5199 | break; |
5200 | ||
5201 | default: | |
b21a15f6 | 5202 | rc = -ENXIO; |
c52f0aa5 HMH |
5203 | } |
5204 | ||
b21a15f6 HMH |
5205 | mutex_unlock(&fan_mutex); |
5206 | return rc; | |
16663a87 HMH |
5207 | } |
5208 | ||
5209 | static void fan_watchdog_reset(void) | |
5210 | { | |
94954cc6 | 5211 | static int fan_watchdog_active; |
16663a87 | 5212 | |
4985cd0a HMH |
5213 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5214 | return; | |
5215 | ||
16663a87 HMH |
5216 | if (fan_watchdog_active) |
5217 | cancel_delayed_work(&fan_watchdog_task); | |
5218 | ||
8fef502e HMH |
5219 | if (fan_watchdog_maxinterval > 0 && |
5220 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
5221 | fan_watchdog_active = 1; |
5222 | if (!schedule_delayed_work(&fan_watchdog_task, | |
5223 | msecs_to_jiffies(fan_watchdog_maxinterval | |
5224 | * 1000))) { | |
35ff8b9f HMH |
5225 | printk(TPACPI_ERR |
5226 | "failed to schedule the fan watchdog, " | |
16663a87 HMH |
5227 | "watchdog will not trigger\n"); |
5228 | } | |
5229 | } else | |
5230 | fan_watchdog_active = 0; | |
5231 | } | |
5232 | ||
b21a15f6 | 5233 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5234 | { |
b21a15f6 | 5235 | int rc; |
18ad7996 | 5236 | |
b21a15f6 HMH |
5237 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5238 | return; | |
a12095c2 | 5239 | |
e0c7dfe7 | 5240 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5241 | rc = fan_set_enable(); |
5242 | if (rc < 0) { | |
e0c7dfe7 | 5243 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5244 | "will try again later...\n", -rc); |
5245 | /* reschedule for later */ | |
5246 | fan_watchdog_reset(); | |
5247 | } | |
5248 | } | |
eaa7571b | 5249 | |
b21a15f6 HMH |
5250 | /* |
5251 | * SYSFS fan layout: hwmon compatible (device) | |
5252 | * | |
5253 | * pwm*_enable: | |
5254 | * 0: "disengaged" mode | |
5255 | * 1: manual mode | |
5256 | * 2: native EC "auto" mode (recommended, hardware default) | |
5257 | * | |
5258 | * pwm*: set speed in manual mode, ignored otherwise. | |
5259 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5260 | * interpolation. | |
5261 | * | |
5262 | * fan*_input: tachometer reading, RPM | |
5263 | * | |
5264 | * | |
5265 | * SYSFS fan layout: extensions | |
5266 | * | |
5267 | * fan_watchdog (driver): | |
5268 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5269 | */ | |
5270 | ||
5271 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5272 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5273 | struct device_attribute *attr, | |
5274 | char *buf) | |
5275 | { | |
5276 | int res, mode; | |
5277 | u8 status; | |
5278 | ||
5279 | res = fan_get_status_safe(&status); | |
5280 | if (res) | |
5281 | return res; | |
5282 | ||
5283 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5284 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5285 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5286 | } else { |
5287 | /* Return most likely status. In fact, it | |
5288 | * might be the only possible status */ | |
5289 | status = TP_EC_FAN_AUTO; | |
5290 | } | |
5291 | } | |
5292 | ||
5293 | if (status & TP_EC_FAN_FULLSPEED) { | |
5294 | mode = 0; | |
5295 | } else if (status & TP_EC_FAN_AUTO) { | |
5296 | mode = 2; | |
5297 | } else | |
5298 | mode = 1; | |
5299 | ||
5300 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5301 | } | |
a12095c2 | 5302 | |
b21a15f6 HMH |
5303 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5304 | struct device_attribute *attr, | |
5305 | const char *buf, size_t count) | |
5306 | { | |
5307 | unsigned long t; | |
5308 | int res, level; | |
5309 | ||
5310 | if (parse_strtoul(buf, 2, &t)) | |
5311 | return -EINVAL; | |
5312 | ||
5313 | switch (t) { | |
5314 | case 0: | |
5315 | level = TP_EC_FAN_FULLSPEED; | |
5316 | break; | |
5317 | case 1: | |
5318 | level = TPACPI_FAN_LAST_LEVEL; | |
5319 | break; | |
5320 | case 2: | |
5321 | level = TP_EC_FAN_AUTO; | |
5322 | break; | |
5323 | case 3: | |
5324 | /* reserved for software-controlled auto mode */ | |
5325 | return -ENOSYS; | |
18ad7996 | 5326 | default: |
b21a15f6 | 5327 | return -EINVAL; |
18ad7996 | 5328 | } |
b21a15f6 HMH |
5329 | |
5330 | res = fan_set_level_safe(level); | |
5331 | if (res == -ENXIO) | |
5332 | return -EINVAL; | |
5333 | else if (res < 0) | |
5334 | return res; | |
5335 | ||
5336 | fan_watchdog_reset(); | |
5337 | ||
5338 | return count; | |
18ad7996 HMH |
5339 | } |
5340 | ||
b21a15f6 HMH |
5341 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5342 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5343 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5344 | ||
5345 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5346 | static ssize_t fan_pwm1_show(struct device *dev, | |
5347 | struct device_attribute *attr, | |
5348 | char *buf) | |
fe98a52c | 5349 | { |
b21a15f6 HMH |
5350 | int res; |
5351 | u8 status; | |
fe98a52c | 5352 | |
b21a15f6 HMH |
5353 | res = fan_get_status_safe(&status); |
5354 | if (res) | |
5355 | return res; | |
ecf2a80a | 5356 | |
b21a15f6 HMH |
5357 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5358 | if (status != fan_control_initial_status) { | |
5359 | tp_features.fan_ctrl_status_undef = 0; | |
5360 | } else { | |
5361 | status = TP_EC_FAN_AUTO; | |
5362 | } | |
5363 | } | |
fe98a52c | 5364 | |
b21a15f6 HMH |
5365 | if ((status & |
5366 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5367 | status = fan_control_desired_level; | |
fe98a52c | 5368 | |
b21a15f6 HMH |
5369 | if (status > 7) |
5370 | status = 7; | |
fe98a52c | 5371 | |
b21a15f6 | 5372 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5373 | } |
5374 | ||
b21a15f6 HMH |
5375 | static ssize_t fan_pwm1_store(struct device *dev, |
5376 | struct device_attribute *attr, | |
5377 | const char *buf, size_t count) | |
18ad7996 | 5378 | { |
b21a15f6 | 5379 | unsigned long s; |
1c6a334e | 5380 | int rc; |
b21a15f6 | 5381 | u8 status, newlevel; |
1c6a334e | 5382 | |
b21a15f6 HMH |
5383 | if (parse_strtoul(buf, 255, &s)) |
5384 | return -EINVAL; | |
5385 | ||
5386 | /* scale down from 0-255 to 0-7 */ | |
5387 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5388 | |
fc589a3c HMH |
5389 | if (mutex_lock_interruptible(&fan_mutex)) |
5390 | return -ERESTARTSYS; | |
40ca9fdf | 5391 | |
b21a15f6 HMH |
5392 | rc = fan_get_status(&status); |
5393 | if (!rc && (status & | |
5394 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5395 | rc = fan_set_level(newlevel); | |
5396 | if (rc == -ENXIO) | |
5397 | rc = -EINVAL; | |
5398 | else if (!rc) { | |
5399 | fan_update_desired_level(newlevel); | |
5400 | fan_watchdog_reset(); | |
eaa7571b | 5401 | } |
b21a15f6 | 5402 | } |
1c6a334e | 5403 | |
b21a15f6 HMH |
5404 | mutex_unlock(&fan_mutex); |
5405 | return (rc)? rc : count; | |
5406 | } | |
1c6a334e | 5407 | |
b21a15f6 HMH |
5408 | static struct device_attribute dev_attr_fan_pwm1 = |
5409 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5410 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5411 | |
b21a15f6 HMH |
5412 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5413 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5414 | struct device_attribute *attr, | |
5415 | char *buf) | |
5416 | { | |
5417 | int res; | |
5418 | unsigned int speed; | |
1c6a334e | 5419 | |
b21a15f6 HMH |
5420 | res = fan_get_speed(&speed); |
5421 | if (res < 0) | |
5422 | return res; | |
1c6a334e | 5423 | |
b21a15f6 HMH |
5424 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5425 | } | |
18ad7996 | 5426 | |
b21a15f6 HMH |
5427 | static struct device_attribute dev_attr_fan_fan1_input = |
5428 | __ATTR(fan1_input, S_IRUGO, | |
5429 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5430 | |
b21a15f6 HMH |
5431 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5432 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5433 | char *buf) | |
5434 | { | |
5435 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5436 | } |
5437 | ||
b21a15f6 HMH |
5438 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5439 | const char *buf, size_t count) | |
18ad7996 | 5440 | { |
b21a15f6 HMH |
5441 | unsigned long t; |
5442 | ||
5443 | if (parse_strtoul(buf, 120, &t)) | |
5444 | return -EINVAL; | |
40ca9fdf | 5445 | |
ecf2a80a HMH |
5446 | if (!fan_control_allowed) |
5447 | return -EPERM; | |
5448 | ||
b21a15f6 HMH |
5449 | fan_watchdog_maxinterval = t; |
5450 | fan_watchdog_reset(); | |
40ca9fdf | 5451 | |
b21a15f6 HMH |
5452 | return count; |
5453 | } | |
5454 | ||
5455 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5456 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5457 | ||
5458 | /* --------------------------------------------------------------------- */ | |
5459 | static struct attribute *fan_attributes[] = { | |
5460 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5461 | &dev_attr_fan_fan1_input.attr, | |
5462 | NULL | |
5463 | }; | |
5464 | ||
5465 | static const struct attribute_group fan_attr_group = { | |
5466 | .attrs = fan_attributes, | |
5467 | }; | |
5468 | ||
5469 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5470 | { | |
5471 | int rc; | |
5472 | ||
5473 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5474 | ||
5475 | mutex_init(&fan_mutex); | |
5476 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5477 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5478 | fan_control_commands = 0; | |
5479 | fan_watchdog_maxinterval = 0; | |
5480 | tp_features.fan_ctrl_status_undef = 0; | |
5481 | fan_control_desired_level = 7; | |
5482 | ||
e0c7dfe7 HMH |
5483 | TPACPI_ACPIHANDLE_INIT(fans); |
5484 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5485 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5486 | |
5487 | if (gfan_handle) { | |
5488 | /* 570, 600e/x, 770e, 770x */ | |
5489 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5490 | } else { | |
5491 | /* all other ThinkPads: note that even old-style | |
5492 | * ThinkPad ECs supports the fan control register */ | |
5493 | if (likely(acpi_ec_read(fan_status_offset, | |
5494 | &fan_control_initial_status))) { | |
5495 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5496 | ||
5497 | /* In some ThinkPads, neither the EC nor the ACPI | |
5498 | * DSDT initialize the fan status, and it ends up | |
5499 | * being set to 0x07 when it *could* be either | |
5500 | * 0x07 or 0x80. | |
5501 | * | |
5502 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5503 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5504 | * to be buggy. */ | |
5505 | if (fan_control_initial_status == 0x07) { | |
5506 | switch (thinkpad_id.ec_model) { | |
5507 | case 0x5931: /* TP-1Y */ | |
5508 | case 0x3837: /* TP-78 */ | |
5509 | case 0x3637: /* TP-76 */ | |
5510 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5511 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5512 | "fan_init: initial fan status " |
5513 | "is unknown, assuming it is " | |
5514 | "in auto mode\n"); | |
b21a15f6 HMH |
5515 | tp_features.fan_ctrl_status_undef = 1; |
5516 | ;; | |
5517 | } | |
5518 | } | |
5519 | } else { | |
e0c7dfe7 | 5520 | printk(TPACPI_ERR |
b21a15f6 HMH |
5521 | "ThinkPad ACPI EC access misbehaving, " |
5522 | "fan status and control unavailable\n"); | |
5523 | return 1; | |
5524 | } | |
5525 | } | |
5526 | ||
5527 | if (sfan_handle) { | |
5528 | /* 570, 770x-JL */ | |
5529 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5530 | fan_control_commands |= | |
5531 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5532 | } else { | |
5533 | if (!gfan_handle) { | |
5534 | /* gfan without sfan means no fan control */ | |
5535 | /* all other models implement TP EC 0x2f control */ | |
5536 | ||
5537 | if (fans_handle) { | |
5538 | /* X31, X40, X41 */ | |
5539 | fan_control_access_mode = | |
5540 | TPACPI_FAN_WR_ACPI_FANS; | |
5541 | fan_control_commands |= | |
5542 | TPACPI_FAN_CMD_SPEED | | |
5543 | TPACPI_FAN_CMD_LEVEL | | |
5544 | TPACPI_FAN_CMD_ENABLE; | |
5545 | } else { | |
5546 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5547 | fan_control_commands |= | |
5548 | TPACPI_FAN_CMD_LEVEL | | |
5549 | TPACPI_FAN_CMD_ENABLE; | |
5550 | } | |
fe98a52c | 5551 | } |
b21a15f6 | 5552 | } |
18ad7996 | 5553 | |
b21a15f6 HMH |
5554 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5555 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5556 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5557 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5558 | |
b21a15f6 HMH |
5559 | /* fan control master switch */ |
5560 | if (!fan_control_allowed) { | |
5561 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5562 | fan_control_commands = 0; | |
5563 | dbg_printk(TPACPI_DBG_INIT, | |
5564 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5565 | } |
40ca9fdf | 5566 | |
b21a15f6 HMH |
5567 | /* update fan_control_desired_level */ |
5568 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5569 | fan_get_status_safe(NULL); | |
fe98a52c | 5570 | |
b21a15f6 HMH |
5571 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5572 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5573 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5574 | &fan_attr_group); | |
5575 | if (!(rc < 0)) | |
5576 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5577 | &driver_attr_fan_watchdog); | |
5578 | if (rc < 0) | |
5579 | return rc; | |
5580 | return 0; | |
5581 | } else | |
5582 | return 1; | |
56b6aeb0 HMH |
5583 | } |
5584 | ||
b21a15f6 | 5585 | static void fan_exit(void) |
56b6aeb0 | 5586 | { |
35ff8b9f HMH |
5587 | vdbg_printk(TPACPI_DBG_EXIT, |
5588 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5589 | |
b21a15f6 HMH |
5590 | /* FIXME: can we really do this unconditionally? */ |
5591 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5592 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5593 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5594 | |
b21a15f6 HMH |
5595 | cancel_delayed_work(&fan_watchdog_task); |
5596 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5597 | } |
5598 | ||
5599 | static int fan_read(char *p) | |
5600 | { | |
5601 | int len = 0; | |
5602 | int rc; | |
5603 | u8 status; | |
5604 | unsigned int speed = 0; | |
5605 | ||
5606 | switch (fan_status_access_mode) { | |
efa27145 | 5607 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5608 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5609 | rc = fan_get_status_safe(&status); |
5610 | if (rc < 0) | |
56b6aeb0 HMH |
5611 | return rc; |
5612 | ||
5613 | len += sprintf(p + len, "status:\t\t%s\n" | |
5614 | "level:\t\t%d\n", | |
5615 | (status != 0) ? "enabled" : "disabled", status); | |
5616 | break; | |
5617 | ||
efa27145 | 5618 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5619 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5620 | rc = fan_get_status_safe(&status); |
5621 | if (rc < 0) | |
56b6aeb0 HMH |
5622 | return rc; |
5623 | ||
d8fd94d9 | 5624 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5625 | if (status != fan_control_initial_status) |
d8fd94d9 | 5626 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5627 | else |
5628 | /* Return most likely status. In fact, it | |
5629 | * might be the only possible status */ | |
efa27145 | 5630 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5631 | } |
5632 | ||
5633 | len += sprintf(p + len, "status:\t\t%s\n", | |
5634 | (status != 0) ? "enabled" : "disabled"); | |
5635 | ||
35ff8b9f HMH |
5636 | rc = fan_get_speed(&speed); |
5637 | if (rc < 0) | |
56b6aeb0 HMH |
5638 | return rc; |
5639 | ||
5640 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5641 | ||
efa27145 | 5642 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5643 | /* Disengaged mode takes precedence */ |
5644 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5645 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5646 | len += sprintf(p + len, "level:\t\tauto\n"); |
5647 | else | |
5648 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5649 | break; | |
5650 | ||
efa27145 | 5651 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5652 | default: |
5653 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5654 | } | |
5655 | ||
efa27145 | 5656 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5657 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5658 | ||
5659 | switch (fan_control_access_mode) { | |
efa27145 | 5660 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5661 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5662 | break; | |
5663 | ||
5664 | default: | |
5665 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5666 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5667 | break; |
5668 | } | |
5669 | } | |
18ad7996 | 5670 | |
efa27145 | 5671 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5672 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5673 | "commands:\twatchdog <timeout> (<timeout> " |
5674 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5675 | |
efa27145 | 5676 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5677 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5678 | " (<speed> is 0-65535)\n"); | |
5679 | ||
5680 | return len; | |
78f81cc4 BD |
5681 | } |
5682 | ||
18ad7996 HMH |
5683 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5684 | { | |
5685 | int level; | |
5686 | ||
a12095c2 | 5687 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5688 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5689 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5690 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5691 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5692 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5693 | return 0; |
5694 | ||
35ff8b9f HMH |
5695 | *rc = fan_set_level_safe(level); |
5696 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5697 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5698 | "access mode %d", fan_control_access_mode); |
5699 | ||
5700 | return 1; | |
5701 | } | |
5702 | ||
5703 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5704 | { | |
5705 | if (strlencmp(cmd, "enable") != 0) | |
5706 | return 0; | |
5707 | ||
35ff8b9f HMH |
5708 | *rc = fan_set_enable(); |
5709 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5710 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5711 | "access mode %d", fan_control_access_mode); |
5712 | ||
5713 | return 1; | |
5714 | } | |
5715 | ||
5716 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5717 | { | |
5718 | if (strlencmp(cmd, "disable") != 0) | |
5719 | return 0; | |
5720 | ||
35ff8b9f HMH |
5721 | *rc = fan_set_disable(); |
5722 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5723 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5724 | "access mode %d", fan_control_access_mode); |
5725 | ||
5726 | return 1; | |
5727 | } | |
5728 | ||
5729 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5730 | { | |
5731 | int speed; | |
5732 | ||
a8b7a662 HMH |
5733 | /* TODO: |
5734 | * Support speed <low> <medium> <high> ? */ | |
5735 | ||
18ad7996 HMH |
5736 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5737 | return 0; | |
5738 | ||
35ff8b9f HMH |
5739 | *rc = fan_set_speed(speed); |
5740 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5741 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5742 | "access mode %d", fan_control_access_mode); |
5743 | ||
5744 | return 1; | |
5745 | } | |
5746 | ||
16663a87 HMH |
5747 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5748 | { | |
5749 | int interval; | |
5750 | ||
5751 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5752 | return 0; | |
5753 | ||
5754 | if (interval < 0 || interval > 120) | |
5755 | *rc = -EINVAL; | |
5756 | else | |
5757 | fan_watchdog_maxinterval = interval; | |
5758 | ||
5759 | return 1; | |
5760 | } | |
5761 | ||
18ad7996 HMH |
5762 | static int fan_write(char *buf) |
5763 | { | |
5764 | char *cmd; | |
5765 | int rc = 0; | |
5766 | ||
5767 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5768 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5769 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5770 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5771 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5772 | fan_write_cmd_disable(cmd, &rc) || |
5773 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5774 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5775 | fan_write_cmd_speed(cmd, &rc)) |
5776 | ) | |
5777 | rc = -EINVAL; | |
16663a87 HMH |
5778 | else if (!rc) |
5779 | fan_watchdog_reset(); | |
18ad7996 HMH |
5780 | } |
5781 | ||
5782 | return rc; | |
5783 | } | |
5784 | ||
a5763f22 HMH |
5785 | static struct ibm_struct fan_driver_data = { |
5786 | .name = "fan", | |
5787 | .read = fan_read, | |
5788 | .write = fan_write, | |
5789 | .exit = fan_exit, | |
a5763f22 HMH |
5790 | }; |
5791 | ||
56b6aeb0 HMH |
5792 | /**************************************************************************** |
5793 | **************************************************************************** | |
5794 | * | |
5795 | * Infrastructure | |
5796 | * | |
5797 | **************************************************************************** | |
5798 | ****************************************************************************/ | |
5799 | ||
7fd40029 HMH |
5800 | /* sysfs name ---------------------------------------------------------- */ |
5801 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5802 | struct device_attribute *attr, | |
5803 | char *buf) | |
5804 | { | |
e0c7dfe7 | 5805 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5806 | } |
5807 | ||
5808 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5809 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5810 | ||
5811 | /* --------------------------------------------------------------------- */ | |
5812 | ||
56b6aeb0 | 5813 | /* /proc support */ |
94954cc6 | 5814 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5815 | |
56b6aeb0 HMH |
5816 | /* |
5817 | * Module and infrastructure proble, init and exit handling | |
5818 | */ | |
1da177e4 | 5819 | |
b21a15f6 HMH |
5820 | static int force_load; |
5821 | ||
fe08bc4b | 5822 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5823 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5824 | { |
a5763f22 | 5825 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5826 | |
a5763f22 | 5827 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5828 | } |
5829 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5830 | ||
b21a15f6 HMH |
5831 | static void ibm_exit(struct ibm_struct *ibm) |
5832 | { | |
5833 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5834 | ||
5835 | list_del_init(&ibm->all_drivers); | |
5836 | ||
5837 | if (ibm->flags.acpi_notify_installed) { | |
5838 | dbg_printk(TPACPI_DBG_EXIT, | |
5839 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5840 | BUG_ON(!ibm->acpi); | |
5841 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5842 | ibm->acpi->type, | |
5843 | dispatch_acpi_notify); | |
5844 | ibm->flags.acpi_notify_installed = 0; | |
5845 | ibm->flags.acpi_notify_installed = 0; | |
5846 | } | |
5847 | ||
5848 | if (ibm->flags.proc_created) { | |
5849 | dbg_printk(TPACPI_DBG_EXIT, | |
5850 | "%s: remove_proc_entry\n", ibm->name); | |
5851 | remove_proc_entry(ibm->name, proc_dir); | |
5852 | ibm->flags.proc_created = 0; | |
5853 | } | |
5854 | ||
5855 | if (ibm->flags.acpi_driver_registered) { | |
5856 | dbg_printk(TPACPI_DBG_EXIT, | |
5857 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5858 | BUG_ON(!ibm->acpi); | |
5859 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5860 | kfree(ibm->acpi->driver); | |
5861 | ibm->acpi->driver = NULL; | |
5862 | ibm->flags.acpi_driver_registered = 0; | |
5863 | } | |
5864 | ||
5865 | if (ibm->flags.init_called && ibm->exit) { | |
5866 | ibm->exit(); | |
5867 | ibm->flags.init_called = 0; | |
5868 | } | |
5869 | ||
5870 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5871 | } | |
f74a27d4 | 5872 | |
a5763f22 | 5873 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5874 | { |
5875 | int ret; | |
a5763f22 | 5876 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5877 | struct proc_dir_entry *entry; |
5878 | ||
a5763f22 HMH |
5879 | BUG_ON(ibm == NULL); |
5880 | ||
5881 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5882 | ||
92641177 | 5883 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5884 | return 0; |
5885 | ||
fe08bc4b HMH |
5886 | dbg_printk(TPACPI_DBG_INIT, |
5887 | "probing for %s\n", ibm->name); | |
5888 | ||
a5763f22 HMH |
5889 | if (iibm->init) { |
5890 | ret = iibm->init(iibm); | |
5fba344c HMH |
5891 | if (ret > 0) |
5892 | return 0; /* probe failed */ | |
5893 | if (ret) | |
1da177e4 | 5894 | return ret; |
a5763f22 | 5895 | |
92641177 | 5896 | ibm->flags.init_called = 1; |
1da177e4 LT |
5897 | } |
5898 | ||
8d376cd6 HMH |
5899 | if (ibm->acpi) { |
5900 | if (ibm->acpi->hid) { | |
5901 | ret = register_tpacpi_subdriver(ibm); | |
5902 | if (ret) | |
5903 | goto err_out; | |
5904 | } | |
5fba344c | 5905 | |
8d376cd6 HMH |
5906 | if (ibm->acpi->notify) { |
5907 | ret = setup_acpi_notify(ibm); | |
5908 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5909 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5910 | ibm->name); |
5911 | ret = 0; | |
5912 | goto err_out; | |
5913 | } | |
5914 | if (ret < 0) | |
5915 | goto err_out; | |
5fba344c | 5916 | } |
5fba344c HMH |
5917 | } |
5918 | ||
fe08bc4b HMH |
5919 | dbg_printk(TPACPI_DBG_INIT, |
5920 | "%s installed\n", ibm->name); | |
5921 | ||
78f81cc4 BD |
5922 | if (ibm->read) { |
5923 | entry = create_proc_entry(ibm->name, | |
5924 | S_IFREG | S_IRUGO | S_IWUSR, | |
5925 | proc_dir); | |
5926 | if (!entry) { | |
e0c7dfe7 | 5927 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5928 | ibm->name); |
5fba344c HMH |
5929 | ret = -ENODEV; |
5930 | goto err_out; | |
78f81cc4 BD |
5931 | } |
5932 | entry->owner = THIS_MODULE; | |
5933 | entry->data = ibm; | |
8d376cd6 | 5934 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5935 | if (ibm->write) |
8d376cd6 | 5936 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5937 | ibm->flags.proc_created = 1; |
78f81cc4 | 5938 | } |
1da177e4 | 5939 | |
a5763f22 HMH |
5940 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5941 | ||
1da177e4 | 5942 | return 0; |
5fba344c HMH |
5943 | |
5944 | err_out: | |
fe08bc4b HMH |
5945 | dbg_printk(TPACPI_DBG_INIT, |
5946 | "%s: at error exit path with result %d\n", | |
5947 | ibm->name, ret); | |
5948 | ||
5fba344c HMH |
5949 | ibm_exit(ibm); |
5950 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5951 | } |
5952 | ||
56b6aeb0 HMH |
5953 | /* Probing */ |
5954 | ||
d5a2f2f1 | 5955 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5956 | { |
1855256c | 5957 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5958 | char ec_fw_string[18]; |
1da177e4 | 5959 | |
d5a2f2f1 HMH |
5960 | if (!tp) |
5961 | return; | |
5962 | ||
5963 | memset(tp, 0, sizeof(*tp)); | |
5964 | ||
5965 | if (dmi_name_in_vendors("IBM")) | |
5966 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5967 | else if (dmi_name_in_vendors("LENOVO")) | |
5968 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5969 | else | |
5970 | return; | |
5971 | ||
5972 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5973 | GFP_KERNEL); | |
5974 | if (!tp->bios_version_str) | |
5975 | return; | |
5976 | tp->bios_model = tp->bios_version_str[0] | |
5977 | | (tp->bios_version_str[1] << 8); | |
5978 | ||
56b6aeb0 HMH |
5979 | /* |
5980 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5981 | * X32 or newer, all Z series; Some models must have an | |
5982 | * up-to-date BIOS or they will not be detected. | |
5983 | * | |
5984 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5985 | */ | |
5986 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5987 | if (sscanf(dev->name, | |
5988 | "IBM ThinkPad Embedded Controller -[%17c", | |
5989 | ec_fw_string) == 1) { | |
5990 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5991 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5992 | |
5993 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5994 | tp->ec_model = ec_fw_string[0] | |
5995 | | (ec_fw_string[1] << 8); | |
5996 | break; | |
78f81cc4 | 5997 | } |
1da177e4 | 5998 | } |
d5a2f2f1 HMH |
5999 | |
6000 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
6001 | GFP_KERNEL); | |
6002 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
6003 | kfree(tp->model_str); | |
6004 | tp->model_str = NULL; | |
6005 | } | |
8c74adbc HMH |
6006 | |
6007 | tp->nummodel_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_NAME), | |
6008 | GFP_KERNEL); | |
1da177e4 LT |
6009 | } |
6010 | ||
5fba344c HMH |
6011 | static int __init probe_for_thinkpad(void) |
6012 | { | |
6013 | int is_thinkpad; | |
6014 | ||
6015 | if (acpi_disabled) | |
6016 | return -ENODEV; | |
6017 | ||
6018 | /* | |
6019 | * Non-ancient models have better DMI tagging, but very old models | |
6020 | * don't. | |
6021 | */ | |
d5a2f2f1 | 6022 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
6023 | |
6024 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 6025 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
6026 | if (!ec_handle) { |
6027 | if (is_thinkpad) | |
e0c7dfe7 | 6028 | printk(TPACPI_ERR |
5fba344c HMH |
6029 | "Not yet supported ThinkPad detected!\n"); |
6030 | return -ENODEV; | |
6031 | } | |
6032 | ||
0dcef77c HMH |
6033 | /* |
6034 | * Risks a regression on very old machines, but reduces potential | |
6035 | * false positives a damn great deal | |
6036 | */ | |
6037 | if (!is_thinkpad) | |
d5a2f2f1 | 6038 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
6039 | |
6040 | if (!is_thinkpad && !force_load) | |
6041 | return -ENODEV; | |
6042 | ||
5fba344c HMH |
6043 | return 0; |
6044 | } | |
6045 | ||
6046 | ||
56b6aeb0 | 6047 | /* Module init, exit, parameters */ |
1da177e4 | 6048 | |
a5763f22 HMH |
6049 | static struct ibm_init_struct ibms_init[] __initdata = { |
6050 | { | |
6051 | .init = thinkpad_acpi_driver_init, | |
6052 | .data = &thinkpad_acpi_driver_data, | |
6053 | }, | |
6054 | { | |
6055 | .init = hotkey_init, | |
6056 | .data = &hotkey_driver_data, | |
6057 | }, | |
6058 | { | |
6059 | .init = bluetooth_init, | |
6060 | .data = &bluetooth_driver_data, | |
6061 | }, | |
6062 | { | |
6063 | .init = wan_init, | |
6064 | .data = &wan_driver_data, | |
6065 | }, | |
d7c1d17d | 6066 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
6067 | { |
6068 | .init = video_init, | |
6069 | .data = &video_driver_data, | |
6070 | }, | |
d7c1d17d | 6071 | #endif |
a5763f22 HMH |
6072 | { |
6073 | .init = light_init, | |
6074 | .data = &light_driver_data, | |
6075 | }, | |
6076 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
6077 | { | |
6078 | .init = dock_init, | |
6079 | .data = &dock_driver_data[0], | |
6080 | }, | |
6081 | { | |
d94a7f16 | 6082 | .init = dock_init2, |
a5763f22 HMH |
6083 | .data = &dock_driver_data[1], |
6084 | }, | |
6085 | #endif | |
6086 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
6087 | { | |
6088 | .init = bay_init, | |
6089 | .data = &bay_driver_data, | |
6090 | }, | |
6091 | #endif | |
6092 | { | |
6093 | .init = cmos_init, | |
6094 | .data = &cmos_driver_data, | |
6095 | }, | |
6096 | { | |
6097 | .init = led_init, | |
6098 | .data = &led_driver_data, | |
6099 | }, | |
6100 | { | |
6101 | .init = beep_init, | |
6102 | .data = &beep_driver_data, | |
6103 | }, | |
6104 | { | |
6105 | .init = thermal_init, | |
6106 | .data = &thermal_driver_data, | |
6107 | }, | |
6108 | { | |
6109 | .data = &ecdump_driver_data, | |
6110 | }, | |
6111 | { | |
6112 | .init = brightness_init, | |
6113 | .data = &brightness_driver_data, | |
6114 | }, | |
6115 | { | |
6116 | .data = &volume_driver_data, | |
6117 | }, | |
6118 | { | |
6119 | .init = fan_init, | |
6120 | .data = &fan_driver_data, | |
6121 | }, | |
6122 | }; | |
6123 | ||
3945ac36 | 6124 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
6125 | { |
6126 | unsigned int i; | |
a5763f22 | 6127 | struct ibm_struct *ibm; |
1da177e4 | 6128 | |
59f91ff1 HMH |
6129 | if (!kp || !kp->name || !val) |
6130 | return -EINVAL; | |
6131 | ||
a5763f22 HMH |
6132 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6133 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
6134 | WARN_ON(ibm == NULL); |
6135 | ||
6136 | if (!ibm || !ibm->name) | |
6137 | continue; | |
a5763f22 HMH |
6138 | |
6139 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
6140 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 6141 | return -ENOSPC; |
a5763f22 HMH |
6142 | strcpy(ibms_init[i].param, val); |
6143 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
6144 | return 0; |
6145 | } | |
a5763f22 | 6146 | } |
1da177e4 | 6147 | |
1da177e4 LT |
6148 | return -EINVAL; |
6149 | } | |
6150 | ||
56b6aeb0 | 6151 | module_param(experimental, int, 0); |
f68080f8 | 6152 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 6153 | "Enables experimental features when non-zero"); |
56b6aeb0 | 6154 | |
132ce091 | 6155 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 6156 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 6157 | |
86cc9445 | 6158 | module_param(force_load, bool, 0); |
f68080f8 | 6159 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
6160 | "Attempts to load the driver even on a " |
6161 | "mis-identified ThinkPad when true"); | |
0dcef77c | 6162 | |
86cc9445 | 6163 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 6164 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 6165 | "Enables setting fan parameters features when true"); |
ecf2a80a | 6166 | |
24d3b774 | 6167 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 6168 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
6169 | "Selects brightness control strategy: " |
6170 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 6171 | |
87cc537a | 6172 | module_param(brightness_enable, uint, 0); |
f68080f8 | 6173 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 6174 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 6175 | |
ff80f137 | 6176 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6177 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6178 | "used for backwards compatibility with userspace, " |
6179 | "see documentation"); | |
ff80f137 | 6180 | |
e0c7dfe7 | 6181 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6182 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6183 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6184 | "at module load, see documentation") |
1da177e4 | 6185 | |
e0c7dfe7 HMH |
6186 | TPACPI_PARAM(hotkey); |
6187 | TPACPI_PARAM(bluetooth); | |
6188 | TPACPI_PARAM(video); | |
6189 | TPACPI_PARAM(light); | |
85998248 | 6190 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6191 | TPACPI_PARAM(dock); |
63e5f248 | 6192 | #endif |
85998248 | 6193 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6194 | TPACPI_PARAM(bay); |
85998248 | 6195 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6196 | TPACPI_PARAM(cmos); |
6197 | TPACPI_PARAM(led); | |
6198 | TPACPI_PARAM(beep); | |
6199 | TPACPI_PARAM(ecdump); | |
6200 | TPACPI_PARAM(brightness); | |
6201 | TPACPI_PARAM(volume); | |
6202 | TPACPI_PARAM(fan); | |
78f81cc4 | 6203 | |
b21a15f6 HMH |
6204 | static void thinkpad_acpi_module_exit(void) |
6205 | { | |
6206 | struct ibm_struct *ibm, *itmp; | |
6207 | ||
6208 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6209 | ||
6210 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6211 | &tpacpi_all_drivers, | |
6212 | all_drivers) { | |
6213 | ibm_exit(ibm); | |
6214 | } | |
6215 | ||
6216 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6217 | ||
6218 | if (tpacpi_inputdev) { | |
6219 | if (tp_features.input_device_registered) | |
6220 | input_unregister_device(tpacpi_inputdev); | |
6221 | else | |
6222 | input_free_device(tpacpi_inputdev); | |
6223 | } | |
6224 | ||
6225 | if (tpacpi_hwmon) | |
6226 | hwmon_device_unregister(tpacpi_hwmon); | |
6227 | ||
6228 | if (tp_features.sensors_pdev_attrs_registered) | |
6229 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6230 | &dev_attr_thinkpad_acpi_pdev_name); | |
6231 | if (tpacpi_sensors_pdev) | |
6232 | platform_device_unregister(tpacpi_sensors_pdev); | |
6233 | if (tpacpi_pdev) | |
6234 | platform_device_unregister(tpacpi_pdev); | |
6235 | ||
6236 | if (tp_features.sensors_pdrv_attrs_registered) | |
6237 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6238 | if (tp_features.platform_drv_attrs_registered) | |
6239 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6240 | ||
6241 | if (tp_features.sensors_pdrv_registered) | |
6242 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6243 | ||
6244 | if (tp_features.platform_drv_registered) | |
6245 | platform_driver_unregister(&tpacpi_pdriver); | |
6246 | ||
6247 | if (proc_dir) | |
e0c7dfe7 | 6248 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
6249 | |
6250 | kfree(thinkpad_id.bios_version_str); | |
6251 | kfree(thinkpad_id.ec_version_str); | |
6252 | kfree(thinkpad_id.model_str); | |
6253 | } | |
6254 | ||
f74a27d4 | 6255 | |
1def7115 | 6256 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6257 | { |
6258 | int ret, i; | |
6259 | ||
8fef502e HMH |
6260 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6261 | ||
ff80f137 HMH |
6262 | /* Parameter checking */ |
6263 | if (hotkey_report_mode > 2) | |
6264 | return -EINVAL; | |
6265 | ||
54ae1501 | 6266 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6267 | |
6268 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6269 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6270 | if (ret) { |
6271 | thinkpad_acpi_module_exit(); | |
5fba344c | 6272 | return ret; |
d5a2f2f1 | 6273 | } |
1da177e4 | 6274 | |
54ae1501 | 6275 | /* Driver initialization */ |
d5a2f2f1 | 6276 | |
e0c7dfe7 HMH |
6277 | TPACPI_ACPIHANDLE_INIT(ecrd); |
6278 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6279 | |
e0c7dfe7 | 6280 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 6281 | if (!proc_dir) { |
35ff8b9f HMH |
6282 | printk(TPACPI_ERR |
6283 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 6284 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6285 | return -ENODEV; |
6286 | } | |
6287 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6288 | |
54ae1501 HMH |
6289 | ret = platform_driver_register(&tpacpi_pdriver); |
6290 | if (ret) { | |
35ff8b9f HMH |
6291 | printk(TPACPI_ERR |
6292 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
6293 | thinkpad_acpi_module_exit(); |
6294 | return ret; | |
6295 | } | |
ac36393d HMH |
6296 | tp_features.platform_drv_registered = 1; |
6297 | ||
7fd40029 HMH |
6298 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6299 | if (ret) { | |
35ff8b9f HMH |
6300 | printk(TPACPI_ERR |
6301 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
6302 | thinkpad_acpi_module_exit(); |
6303 | return ret; | |
6304 | } | |
6305 | tp_features.sensors_pdrv_registered = 1; | |
6306 | ||
176750d6 | 6307 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6308 | if (!ret) { |
6309 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
6310 | ret = tpacpi_create_driver_attributes( |
6311 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 6312 | } |
176750d6 | 6313 | if (ret) { |
35ff8b9f HMH |
6314 | printk(TPACPI_ERR |
6315 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
6316 | thinkpad_acpi_module_exit(); |
6317 | return ret; | |
6318 | } | |
2369cc94 | 6319 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6320 | |
54ae1501 HMH |
6321 | |
6322 | /* Device initialization */ | |
e0c7dfe7 | 6323 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
6324 | NULL, 0); |
6325 | if (IS_ERR(tpacpi_pdev)) { | |
6326 | ret = PTR_ERR(tpacpi_pdev); | |
6327 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 6328 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
6329 | thinkpad_acpi_module_exit(); |
6330 | return ret; | |
6331 | } | |
7fd40029 | 6332 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
6333 | TPACPI_HWMON_DRVR_NAME, |
6334 | -1, NULL, 0); | |
7fd40029 HMH |
6335 | if (IS_ERR(tpacpi_sensors_pdev)) { |
6336 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6337 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
6338 | printk(TPACPI_ERR |
6339 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
6340 | thinkpad_acpi_module_exit(); |
6341 | return ret; | |
6342 | } | |
6343 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6344 | &dev_attr_thinkpad_acpi_pdev_name); | |
6345 | if (ret) { | |
e0c7dfe7 | 6346 | printk(TPACPI_ERR |
35ff8b9f | 6347 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
6348 | thinkpad_acpi_module_exit(); |
6349 | return ret; | |
6350 | } | |
6351 | tp_features.sensors_pdev_attrs_registered = 1; | |
6352 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6353 | if (IS_ERR(tpacpi_hwmon)) { |
6354 | ret = PTR_ERR(tpacpi_hwmon); | |
6355 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 6356 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
6357 | thinkpad_acpi_module_exit(); |
6358 | return ret; | |
6359 | } | |
8523ed6f | 6360 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6361 | tpacpi_inputdev = input_allocate_device(); |
6362 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 6363 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
6364 | thinkpad_acpi_module_exit(); |
6365 | return -ENOMEM; | |
6366 | } else { | |
6367 | /* Prepare input device, but don't register */ | |
6368 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 6369 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 6370 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
6371 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6372 | thinkpad_id.vendor : | |
6373 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6374 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6375 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6376 | } | |
a5763f22 HMH |
6377 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6378 | ret = ibm_init(&ibms_init[i]); | |
6379 | if (ret >= 0 && *ibms_init[i].param) | |
6380 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6381 | if (ret < 0) { |
1def7115 | 6382 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6383 | return ret; |
6384 | } | |
6385 | } | |
7f5d1cd6 HMH |
6386 | ret = input_register_device(tpacpi_inputdev); |
6387 | if (ret < 0) { | |
e0c7dfe7 | 6388 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6389 | thinkpad_acpi_module_exit(); |
6390 | return ret; | |
6391 | } else { | |
6392 | tp_features.input_device_registered = 1; | |
6393 | } | |
1da177e4 | 6394 | |
8fef502e | 6395 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6396 | return 0; |
6397 | } | |
6398 | ||
f68080f8 HMH |
6399 | /* Please remove this in year 2009 */ |
6400 | MODULE_ALIAS("ibm_acpi"); | |
6401 | ||
95e57ab2 HMH |
6402 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
6403 | ||
f68080f8 HMH |
6404 | /* |
6405 | * DMI matching for module autoloading | |
6406 | * | |
6407 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6408 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6409 | * | |
6410 | * Only models listed in thinkwiki will be supported, so add yours | |
6411 | * if it is not there yet. | |
6412 | */ | |
6413 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6414 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6415 | ||
6416 | /* Non-ancient thinkpads */ | |
6417 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6418 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6419 | ||
6420 | /* Ancient thinkpad BIOSes have to be identified by | |
6421 | * BIOS type or model number, and there are far less | |
6422 | * BIOS types than model numbers... */ | |
6423 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6424 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6425 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6426 | ||
6427 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6428 | MODULE_DESCRIPTION(TPACPI_DESC); |
6429 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6430 | MODULE_LICENSE("GPL"); |
6431 | ||
1def7115 HMH |
6432 | module_init(thinkpad_acpi_module_init); |
6433 | module_exit(thinkpad_acpi_module_exit); |