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 | ||
68f12ae5 | 24 | #define TPACPI_VERSION "0.20" |
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 | 142 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 143 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 144 | |
e0c7dfe7 | 145 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 146 | |
0c78039f | 147 | /* Debugging */ |
e0c7dfe7 HMH |
148 | #define TPACPI_LOG TPACPI_FILE ": " |
149 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
150 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
151 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
152 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 153 | |
0c78039f HMH |
154 | #define TPACPI_DBG_ALL 0xffff |
155 | #define TPACPI_DBG_ALL 0xffff | |
156 | #define TPACPI_DBG_INIT 0x0001 | |
157 | #define TPACPI_DBG_EXIT 0x0002 | |
158 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
159 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
160 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
161 | } while (0) | |
0c78039f HMH |
162 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
163 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
164 | dbg_printk(a_dbg_level, format, ## arg) | |
165 | static const char *str_supported(int is_supported); | |
166 | #else | |
167 | #define vdbg_printk(a_dbg_level, format, arg...) | |
168 | #endif | |
169 | ||
35ff8b9f HMH |
170 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
171 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
172 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 173 | |
0c78039f HMH |
174 | |
175 | /**************************************************************************** | |
b21a15f6 | 176 | * Driver-wide structs and misc. variables |
0c78039f HMH |
177 | */ |
178 | ||
179 | struct ibm_struct; | |
180 | ||
181 | struct tp_acpi_drv_struct { | |
182 | const struct acpi_device_id *hid; | |
183 | struct acpi_driver *driver; | |
184 | ||
185 | void (*notify) (struct ibm_struct *, u32); | |
186 | acpi_handle *handle; | |
187 | u32 type; | |
188 | struct acpi_device *device; | |
189 | }; | |
190 | ||
191 | struct ibm_struct { | |
192 | char *name; | |
193 | ||
194 | int (*read) (char *); | |
195 | int (*write) (char *); | |
196 | void (*exit) (void); | |
197 | void (*resume) (void); | |
083f1760 | 198 | void (*suspend) (pm_message_t state); |
0c78039f HMH |
199 | |
200 | struct list_head all_drivers; | |
201 | ||
202 | struct tp_acpi_drv_struct *acpi; | |
203 | ||
204 | struct { | |
205 | u8 acpi_driver_registered:1; | |
206 | u8 acpi_notify_installed:1; | |
207 | u8 proc_created:1; | |
208 | u8 init_called:1; | |
209 | u8 experimental:1; | |
210 | } flags; | |
211 | }; | |
212 | ||
213 | struct ibm_init_struct { | |
214 | char param[32]; | |
215 | ||
216 | int (*init) (struct ibm_init_struct *); | |
217 | struct ibm_struct *data; | |
218 | }; | |
219 | ||
220 | static struct { | |
221 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
222 | u32 bay_status:1; | |
223 | u32 bay_eject:1; | |
224 | u32 bay_status2:1; | |
225 | u32 bay_eject2:1; | |
226 | #endif | |
227 | u32 bluetooth:1; | |
228 | u32 hotkey:1; | |
229 | u32 hotkey_mask:1; | |
230 | u32 hotkey_wlsw:1; | |
6c231bd5 | 231 | u32 hotkey_tablet:1; |
0c78039f HMH |
232 | u32 light:1; |
233 | u32 light_status:1; | |
234 | u32 bright_16levels:1; | |
b5972796 | 235 | u32 bright_acpimode:1; |
0c78039f HMH |
236 | u32 wan:1; |
237 | u32 fan_ctrl_status_undef:1; | |
238 | u32 input_device_registered:1; | |
239 | u32 platform_drv_registered:1; | |
240 | u32 platform_drv_attrs_registered:1; | |
241 | u32 sensors_pdrv_registered:1; | |
242 | u32 sensors_pdrv_attrs_registered:1; | |
243 | u32 sensors_pdev_attrs_registered:1; | |
244 | u32 hotkey_poll_active:1; | |
245 | } tp_features; | |
246 | ||
92889022 HMH |
247 | static struct { |
248 | u16 hotkey_mask_ff:1; | |
2d5e94d7 | 249 | u16 bright_cmos_ec_unsync:1; |
92889022 HMH |
250 | } tp_warned; |
251 | ||
0c78039f HMH |
252 | struct thinkpad_id_data { |
253 | unsigned int vendor; /* ThinkPad vendor: | |
254 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
255 | ||
256 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
257 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
258 | ||
259 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
260 | u16 ec_model; | |
261 | ||
8c74adbc HMH |
262 | char *model_str; /* ThinkPad T43 */ |
263 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 264 | }; |
0c78039f HMH |
265 | static struct thinkpad_id_data thinkpad_id; |
266 | ||
8fef502e HMH |
267 | static enum { |
268 | TPACPI_LIFE_INIT = 0, | |
269 | TPACPI_LIFE_RUNNING, | |
270 | TPACPI_LIFE_EXITING, | |
271 | } tpacpi_lifecycle; | |
272 | ||
b21a15f6 HMH |
273 | static int experimental; |
274 | static u32 dbg_level; | |
275 | ||
e0e3c061 HMH |
276 | static struct workqueue_struct *tpacpi_wq; |
277 | ||
4fa6811b HMH |
278 | /* Special LED class that can defer work */ |
279 | struct tpacpi_led_classdev { | |
280 | struct led_classdev led_classdev; | |
281 | struct work_struct work; | |
282 | enum led_brightness new_brightness; | |
af116101 | 283 | unsigned int led; |
4fa6811b HMH |
284 | }; |
285 | ||
56b6aeb0 HMH |
286 | /**************************************************************************** |
287 | **************************************************************************** | |
288 | * | |
289 | * ACPI Helpers and device model | |
290 | * | |
291 | **************************************************************************** | |
292 | ****************************************************************************/ | |
293 | ||
294 | /************************************************************************* | |
295 | * ACPI basic handles | |
296 | */ | |
1da177e4 | 297 | |
94954cc6 | 298 | static acpi_handle root_handle; |
1da177e4 | 299 | |
e0c7dfe7 | 300 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
301 | static acpi_handle object##_handle; \ |
302 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 303 | static char *object##_path; \ |
1da177e4 LT |
304 | static char *object##_paths[] = { paths } |
305 | ||
e0c7dfe7 | 306 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
307 | "\\_SB.PCI.ISA.EC", /* 570 */ |
308 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
309 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
310 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
311 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
312 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 313 | ); |
78f81cc4 | 314 | |
e0c7dfe7 HMH |
315 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
316 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 317 | |
35ff8b9f HMH |
318 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
319 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
320 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
321 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 322 | ); /* all others */ |
78f81cc4 | 323 | |
e0c7dfe7 | 324 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
325 | "^HKEY", /* R30, R31 */ |
326 | "HKEY", /* all others */ | |
56b6aeb0 | 327 | ); /* 570 */ |
78f81cc4 | 328 | |
d7c1d17d HMH |
329 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
330 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
331 | "\\_SB.PCI0.VID0", /* 770e */ | |
332 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
333 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
334 | ); /* R30, R31 */ | |
335 | ||
78f81cc4 | 336 | |
56b6aeb0 HMH |
337 | /************************************************************************* |
338 | * ACPI helpers | |
a8b7a662 HMH |
339 | */ |
340 | ||
1da177e4 LT |
341 | static int acpi_evalf(acpi_handle handle, |
342 | void *res, char *method, char *fmt, ...) | |
343 | { | |
344 | char *fmt0 = fmt; | |
78f81cc4 | 345 | struct acpi_object_list params; |
e0c7dfe7 | 346 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
347 | struct acpi_buffer result, *resultp; |
348 | union acpi_object out_obj; | |
349 | acpi_status status; | |
350 | va_list ap; | |
351 | char res_type; | |
352 | int success; | |
353 | int quiet; | |
1da177e4 LT |
354 | |
355 | if (!*fmt) { | |
e0c7dfe7 | 356 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
357 | return 0; |
358 | } | |
359 | ||
360 | if (*fmt == 'q') { | |
361 | quiet = 1; | |
362 | fmt++; | |
363 | } else | |
364 | quiet = 0; | |
365 | ||
366 | res_type = *(fmt++); | |
367 | ||
368 | params.count = 0; | |
369 | params.pointer = &in_objs[0]; | |
370 | ||
371 | va_start(ap, fmt); | |
372 | while (*fmt) { | |
373 | char c = *(fmt++); | |
374 | switch (c) { | |
375 | case 'd': /* int */ | |
376 | in_objs[params.count].integer.value = va_arg(ap, int); | |
377 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
378 | break; | |
78f81cc4 | 379 | /* add more types as needed */ |
1da177e4 | 380 | default: |
e0c7dfe7 | 381 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
382 | "with invalid format character '%c'\n", c); |
383 | return 0; | |
384 | } | |
385 | } | |
386 | va_end(ap); | |
387 | ||
78f81cc4 BD |
388 | if (res_type != 'v') { |
389 | result.length = sizeof(out_obj); | |
390 | result.pointer = &out_obj; | |
391 | resultp = &result; | |
392 | } else | |
393 | resultp = NULL; | |
1da177e4 | 394 | |
78f81cc4 | 395 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
396 | |
397 | switch (res_type) { | |
78f81cc4 | 398 | case 'd': /* int */ |
1da177e4 LT |
399 | if (res) |
400 | *(int *)res = out_obj.integer.value; | |
401 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
402 | break; | |
78f81cc4 | 403 | case 'v': /* void */ |
1da177e4 LT |
404 | success = status == AE_OK; |
405 | break; | |
78f81cc4 | 406 | /* add more types as needed */ |
1da177e4 | 407 | default: |
e0c7dfe7 | 408 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
409 | "with invalid format character '%c'\n", res_type); |
410 | return 0; | |
411 | } | |
412 | ||
56b6aeb0 | 413 | if (!success && !quiet) |
e0c7dfe7 | 414 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
415 | method, fmt0, status); |
416 | ||
417 | return success; | |
418 | } | |
419 | ||
35ff8b9f | 420 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
421 | { |
422 | int v; | |
423 | ||
424 | if (ecrd_handle) { | |
425 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
426 | return 0; | |
427 | *p = v; | |
428 | } else { | |
429 | if (ec_read(i, p) < 0) | |
430 | return 0; | |
431 | } | |
432 | ||
433 | return 1; | |
434 | } | |
435 | ||
436 | static int acpi_ec_write(int i, u8 v) | |
437 | { | |
438 | if (ecwr_handle) { | |
439 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
440 | return 0; | |
441 | } else { | |
442 | if (ec_write(i, v) < 0) | |
443 | return 0; | |
444 | } | |
445 | ||
446 | return 1; | |
447 | } | |
448 | ||
013c40e4 | 449 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
450 | static int _sta(acpi_handle handle) |
451 | { | |
452 | int status; | |
453 | ||
454 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
455 | status = 0; | |
456 | ||
457 | return status; | |
458 | } | |
013c40e4 | 459 | #endif |
56b6aeb0 | 460 | |
c9bea99c HMH |
461 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
462 | { | |
463 | if (!cmos_handle) | |
464 | return -ENXIO; | |
465 | ||
466 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
467 | return -EIO; | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
56b6aeb0 HMH |
472 | /************************************************************************* |
473 | * ACPI device model | |
474 | */ | |
475 | ||
35ff8b9f HMH |
476 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
477 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
478 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
479 | ||
8d376cd6 | 480 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
481 | acpi_handle *handle, acpi_handle parent, |
482 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
483 | { |
484 | int i; | |
485 | acpi_status status; | |
486 | ||
5ae930e6 HMH |
487 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
488 | name); | |
489 | ||
56b6aeb0 HMH |
490 | for (i = 0; i < num_paths; i++) { |
491 | status = acpi_get_handle(parent, paths[i], handle); | |
492 | if (ACPI_SUCCESS(status)) { | |
493 | *path = paths[i]; | |
5ae930e6 HMH |
494 | dbg_printk(TPACPI_DBG_INIT, |
495 | "Found ACPI handle %s for %s\n", | |
496 | *path, name); | |
56b6aeb0 HMH |
497 | return; |
498 | } | |
499 | } | |
500 | ||
5ae930e6 HMH |
501 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
502 | name); | |
56b6aeb0 HMH |
503 | *handle = NULL; |
504 | } | |
505 | ||
8d376cd6 | 506 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
507 | { |
508 | struct ibm_struct *ibm = data; | |
509 | ||
8fef502e HMH |
510 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
511 | return; | |
512 | ||
8d376cd6 | 513 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
514 | return; |
515 | ||
8d376cd6 | 516 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
517 | } |
518 | ||
8d376cd6 | 519 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
520 | { |
521 | acpi_status status; | |
5ae930e6 | 522 | int rc; |
56b6aeb0 | 523 | |
8d376cd6 HMH |
524 | BUG_ON(!ibm->acpi); |
525 | ||
526 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
527 | return 0; |
528 | ||
5ae930e6 | 529 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
530 | "setting up ACPI notify for %s\n", ibm->name); |
531 | ||
5ae930e6 HMH |
532 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
533 | if (rc < 0) { | |
e0c7dfe7 | 534 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 535 | ibm->name, rc); |
56b6aeb0 HMH |
536 | return -ENODEV; |
537 | } | |
538 | ||
8d376cd6 HMH |
539 | acpi_driver_data(ibm->acpi->device) = ibm; |
540 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 541 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 542 | ibm->name); |
56b6aeb0 | 543 | |
8d376cd6 HMH |
544 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
545 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
546 | if (ACPI_FAILURE(status)) { |
547 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
548 | printk(TPACPI_NOTICE |
549 | "another device driver is already " | |
550 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 551 | } else { |
35ff8b9f HMH |
552 | printk(TPACPI_ERR |
553 | "acpi_install_notify_handler(%s) failed: %d\n", | |
554 | ibm->name, status); | |
56b6aeb0 HMH |
555 | } |
556 | return -ENODEV; | |
557 | } | |
8d376cd6 | 558 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
559 | return 0; |
560 | } | |
561 | ||
8d376cd6 | 562 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
563 | { |
564 | return 0; | |
565 | } | |
566 | ||
6700121b | 567 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 568 | { |
5ae930e6 | 569 | int rc; |
56b6aeb0 | 570 | |
fe08bc4b HMH |
571 | dbg_printk(TPACPI_DBG_INIT, |
572 | "registering %s as an ACPI driver\n", ibm->name); | |
573 | ||
8d376cd6 HMH |
574 | BUG_ON(!ibm->acpi); |
575 | ||
576 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
577 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 578 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 579 | return -ENOMEM; |
56b6aeb0 HMH |
580 | } |
581 | ||
e0c7dfe7 | 582 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 583 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 584 | |
8d376cd6 | 585 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 586 | |
5ae930e6 HMH |
587 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
588 | if (rc < 0) { | |
e0c7dfe7 | 589 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 590 | ibm->name, rc); |
8d376cd6 HMH |
591 | kfree(ibm->acpi->driver); |
592 | ibm->acpi->driver = NULL; | |
5ae930e6 | 593 | } else if (!rc) |
8d376cd6 | 594 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 595 | |
5ae930e6 | 596 | return rc; |
56b6aeb0 HMH |
597 | } |
598 | ||
599 | ||
600 | /**************************************************************************** | |
601 | **************************************************************************** | |
602 | * | |
603 | * Procfs Helpers | |
604 | * | |
605 | **************************************************************************** | |
606 | ****************************************************************************/ | |
607 | ||
8d376cd6 HMH |
608 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
609 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
610 | { |
611 | struct ibm_struct *ibm = data; | |
612 | int len; | |
613 | ||
614 | if (!ibm || !ibm->read) | |
615 | return -EINVAL; | |
616 | ||
617 | len = ibm->read(page); | |
618 | if (len < 0) | |
619 | return len; | |
620 | ||
621 | if (len <= off + count) | |
622 | *eof = 1; | |
623 | *start = page + off; | |
624 | len -= off; | |
625 | if (len > count) | |
626 | len = count; | |
627 | if (len < 0) | |
628 | len = 0; | |
629 | ||
630 | return len; | |
631 | } | |
632 | ||
8d376cd6 | 633 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 634 | const char __user *userbuf, |
8d376cd6 | 635 | unsigned long count, void *data) |
56b6aeb0 HMH |
636 | { |
637 | struct ibm_struct *ibm = data; | |
638 | char *kernbuf; | |
639 | int ret; | |
640 | ||
641 | if (!ibm || !ibm->write) | |
642 | return -EINVAL; | |
643 | ||
644 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
645 | if (!kernbuf) | |
646 | return -ENOMEM; | |
1da177e4 | 647 | |
56b6aeb0 HMH |
648 | if (copy_from_user(kernbuf, userbuf, count)) { |
649 | kfree(kernbuf); | |
650 | return -EFAULT; | |
651 | } | |
1da177e4 | 652 | |
56b6aeb0 HMH |
653 | kernbuf[count] = 0; |
654 | strcat(kernbuf, ","); | |
655 | ret = ibm->write(kernbuf); | |
656 | if (ret == 0) | |
657 | ret = count; | |
1da177e4 | 658 | |
56b6aeb0 HMH |
659 | kfree(kernbuf); |
660 | ||
661 | return ret; | |
1da177e4 LT |
662 | } |
663 | ||
664 | static char *next_cmd(char **cmds) | |
665 | { | |
666 | char *start = *cmds; | |
667 | char *end; | |
668 | ||
669 | while ((end = strchr(start, ',')) && end == start) | |
670 | start = end + 1; | |
671 | ||
672 | if (!end) | |
673 | return NULL; | |
674 | ||
675 | *end = 0; | |
676 | *cmds = end + 1; | |
677 | return start; | |
678 | } | |
679 | ||
56b6aeb0 | 680 | |
54ae1501 HMH |
681 | /**************************************************************************** |
682 | **************************************************************************** | |
683 | * | |
7f5d1cd6 | 684 | * Device model: input, hwmon and platform |
54ae1501 HMH |
685 | * |
686 | **************************************************************************** | |
687 | ****************************************************************************/ | |
688 | ||
94954cc6 | 689 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 690 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 691 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 692 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 693 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 694 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 695 | |
083f1760 HMH |
696 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
697 | pm_message_t state) | |
698 | { | |
699 | struct ibm_struct *ibm, *itmp; | |
700 | ||
701 | list_for_each_entry_safe(ibm, itmp, | |
702 | &tpacpi_all_drivers, | |
703 | all_drivers) { | |
704 | if (ibm->suspend) | |
705 | (ibm->suspend)(state); | |
706 | } | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
e295e850 HMH |
711 | static int tpacpi_resume_handler(struct platform_device *pdev) |
712 | { | |
713 | struct ibm_struct *ibm, *itmp; | |
714 | ||
715 | list_for_each_entry_safe(ibm, itmp, | |
716 | &tpacpi_all_drivers, | |
717 | all_drivers) { | |
718 | if (ibm->resume) | |
719 | (ibm->resume)(); | |
720 | } | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
54ae1501 HMH |
725 | static struct platform_driver tpacpi_pdriver = { |
726 | .driver = { | |
e0c7dfe7 | 727 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
728 | .owner = THIS_MODULE, |
729 | }, | |
083f1760 | 730 | .suspend = tpacpi_suspend_handler, |
e295e850 | 731 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
732 | }; |
733 | ||
7fd40029 HMH |
734 | static struct platform_driver tpacpi_hwmon_pdriver = { |
735 | .driver = { | |
e0c7dfe7 | 736 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
737 | .owner = THIS_MODULE, |
738 | }, | |
739 | }; | |
54ae1501 | 740 | |
176750d6 | 741 | /************************************************************************* |
b21a15f6 | 742 | * sysfs support helpers |
176750d6 HMH |
743 | */ |
744 | ||
b21a15f6 HMH |
745 | struct attribute_set { |
746 | unsigned int members, max_members; | |
747 | struct attribute_group group; | |
176750d6 HMH |
748 | }; |
749 | ||
7252374a HMH |
750 | struct attribute_set_obj { |
751 | struct attribute_set s; | |
752 | struct attribute *a; | |
753 | } __attribute__((packed)); | |
754 | ||
755 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 756 | const char *name) |
7252374a HMH |
757 | { |
758 | struct attribute_set_obj *sobj; | |
759 | ||
760 | if (max_members == 0) | |
761 | return NULL; | |
762 | ||
763 | /* Allocates space for implicit NULL at the end too */ | |
764 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
765 | max_members * sizeof(struct attribute *), | |
766 | GFP_KERNEL); | |
767 | if (!sobj) | |
768 | return NULL; | |
769 | sobj->s.max_members = max_members; | |
770 | sobj->s.group.attrs = &sobj->a; | |
771 | sobj->s.group.name = name; | |
772 | ||
773 | return &sobj->s; | |
774 | } | |
775 | ||
f74a27d4 HMH |
776 | #define destroy_attr_set(_set) \ |
777 | kfree(_set); | |
778 | ||
7252374a | 779 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 780 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
781 | { |
782 | if (!s || !attr) | |
783 | return -EINVAL; | |
784 | ||
785 | if (s->members >= s->max_members) | |
786 | return -ENOMEM; | |
787 | ||
788 | s->group.attrs[s->members] = attr; | |
789 | s->members++; | |
790 | ||
791 | return 0; | |
792 | } | |
793 | ||
35ff8b9f | 794 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
795 | struct attribute **attr, |
796 | unsigned int count) | |
797 | { | |
798 | int i, res; | |
799 | ||
800 | for (i = 0; i < count; i++) { | |
801 | res = add_to_attr_set(s, attr[i]); | |
802 | if (res) | |
803 | return res; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
35ff8b9f | 809 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
810 | { |
811 | sysfs_remove_group(kobj, &s->group); | |
812 | destroy_attr_set(s); | |
813 | } | |
814 | ||
f74a27d4 HMH |
815 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
816 | sysfs_create_group(_kobj, &_attr_set->group) | |
817 | ||
7252374a HMH |
818 | static int parse_strtoul(const char *buf, |
819 | unsigned long max, unsigned long *value) | |
820 | { | |
821 | char *endp; | |
822 | ||
32afbf07 HMH |
823 | while (*buf && isspace(*buf)) |
824 | buf++; | |
7252374a HMH |
825 | *value = simple_strtoul(buf, &endp, 0); |
826 | while (*endp && isspace(*endp)) | |
827 | endp++; | |
828 | if (*endp || *value > max) | |
829 | return -EINVAL; | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
b5972796 HMH |
834 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
835 | { | |
836 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
837 | union acpi_object *obj; | |
838 | int rc; | |
839 | ||
840 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
841 | obj = (union acpi_object *)buffer.pointer; | |
842 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
843 | printk(TPACPI_ERR "Unknown _BCL data, " | |
844 | "please report this to %s\n", TPACPI_MAIL); | |
845 | rc = 0; | |
846 | } else { | |
847 | rc = obj->package.count; | |
848 | } | |
849 | } else { | |
850 | return 0; | |
851 | } | |
852 | ||
853 | kfree(buffer.pointer); | |
854 | return rc; | |
855 | } | |
856 | ||
857 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
858 | u32 lvl, void *context, void **rv) | |
859 | { | |
860 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
861 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
862 | ||
863 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
864 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
865 | BUG_ON(!rv || !*rv); | |
866 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
867 | return AE_CTRL_TERMINATE; | |
868 | } else { | |
869 | return AE_OK; | |
870 | } | |
871 | } | |
872 | ||
873 | /* | |
874 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
875 | */ | |
876 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
877 | { | |
878 | int status; | |
879 | int bcl_levels = 0; | |
880 | void *bcl_ptr = &bcl_levels; | |
881 | ||
882 | if (!vid_handle) { | |
883 | TPACPI_ACPIHANDLE_INIT(vid); | |
884 | } | |
885 | if (!vid_handle) | |
886 | return 0; | |
887 | ||
888 | /* | |
889 | * Search for a _BCL method, and execute it. This is safe on all | |
890 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
891 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
892 | * about calling the _BCL method in an enabled video device, any | |
893 | * will do for our purposes. | |
894 | */ | |
895 | ||
896 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
897 | tpacpi_acpi_walk_find_bcl, NULL, | |
898 | &bcl_ptr); | |
899 | ||
900 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
901 | tp_features.bright_acpimode = 1; | |
902 | return (bcl_levels - 2); | |
903 | } | |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
56b6aeb0 | 908 | /************************************************************************* |
b21a15f6 | 909 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
910 | */ |
911 | ||
b21a15f6 HMH |
912 | /* interface_version --------------------------------------------------- */ |
913 | static ssize_t tpacpi_driver_interface_version_show( | |
914 | struct device_driver *drv, | |
915 | char *buf) | |
1da177e4 | 916 | { |
b21a15f6 HMH |
917 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
918 | } | |
919 | ||
920 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
921 | tpacpi_driver_interface_version_show, NULL); | |
922 | ||
923 | /* debug_level --------------------------------------------------------- */ | |
924 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
925 | char *buf) | |
926 | { | |
927 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
928 | } | |
929 | ||
930 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
931 | const char *buf, size_t count) | |
932 | { | |
933 | unsigned long t; | |
934 | ||
935 | if (parse_strtoul(buf, 0xffff, &t)) | |
936 | return -EINVAL; | |
937 | ||
938 | dbg_level = t; | |
939 | ||
940 | return count; | |
941 | } | |
942 | ||
943 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
944 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
945 | ||
946 | /* version ------------------------------------------------------------- */ | |
947 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
948 | char *buf) | |
949 | { | |
35ff8b9f HMH |
950 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
951 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
952 | } |
953 | ||
954 | static DRIVER_ATTR(version, S_IRUGO, | |
955 | tpacpi_driver_version_show, NULL); | |
956 | ||
957 | /* --------------------------------------------------------------------- */ | |
958 | ||
35ff8b9f | 959 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
960 | &driver_attr_debug_level, &driver_attr_version, |
961 | &driver_attr_interface_version, | |
962 | }; | |
963 | ||
964 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
965 | { | |
966 | int i, res; | |
967 | ||
968 | i = 0; | |
969 | res = 0; | |
970 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
971 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
972 | i++; | |
973 | } | |
974 | ||
975 | return res; | |
976 | } | |
977 | ||
978 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
979 | { | |
980 | int i; | |
981 | ||
35ff8b9f | 982 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 HMH |
983 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
984 | } | |
985 | ||
986 | /**************************************************************************** | |
987 | **************************************************************************** | |
988 | * | |
989 | * Subdrivers | |
990 | * | |
991 | **************************************************************************** | |
992 | ****************************************************************************/ | |
993 | ||
994 | /************************************************************************* | |
995 | * thinkpad-acpi init subdriver | |
996 | */ | |
997 | ||
998 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
999 | { | |
e0c7dfe7 HMH |
1000 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1001 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1002 | |
e0c7dfe7 | 1003 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1004 | (thinkpad_id.bios_version_str) ? |
1005 | thinkpad_id.bios_version_str : "unknown", | |
1006 | (thinkpad_id.ec_version_str) ? | |
1007 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1008 | |
1009 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1010 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1011 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1012 | "IBM" : ((thinkpad_id.vendor == | |
1013 | PCI_VENDOR_ID_LENOVO) ? | |
1014 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1015 | thinkpad_id.model_str, |
1016 | (thinkpad_id.nummodel_str) ? | |
1017 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1018 | |
1da177e4 LT |
1019 | return 0; |
1020 | } | |
1021 | ||
643f12db | 1022 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1023 | { |
1024 | int len = 0; | |
1025 | ||
e0c7dfe7 HMH |
1026 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1027 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1028 | |
1029 | return len; | |
1030 | } | |
1031 | ||
a5763f22 HMH |
1032 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1033 | .name = "driver", | |
1034 | .read = thinkpad_acpi_driver_read, | |
1035 | }; | |
1036 | ||
56b6aeb0 HMH |
1037 | /************************************************************************* |
1038 | * Hotkey subdriver | |
1039 | */ | |
1040 | ||
f74a27d4 HMH |
1041 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1042 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1043 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1044 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1045 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1046 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1047 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1048 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1049 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1050 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1051 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1052 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1053 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1054 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1055 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1056 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1057 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1058 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1059 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1060 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1061 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1062 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1063 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1064 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1065 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1066 | }; | |
1067 | ||
01e88f25 HMH |
1068 | enum { /* Keys available through NVRAM polling */ |
1069 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1070 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1071 | }; | |
1072 | ||
1073 | enum { /* Positions of some of the keys in hotkey masks */ | |
1074 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1075 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1076 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1077 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1078 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1079 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1080 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1081 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1082 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1083 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1084 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1085 | }; | |
1086 | ||
1087 | enum { /* NVRAM to ACPI HKEY group map */ | |
1088 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1089 | TP_ACPI_HKEY_ZOOM_MASK | | |
1090 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1091 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1092 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1093 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1094 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1095 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1096 | TP_ACPI_HKEY_MUTE_MASK, | |
1097 | }; | |
1098 | ||
1099 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1100 | struct tp_nvram_state { | |
1101 | u16 thinkpad_toggle:1; | |
1102 | u16 zoom_toggle:1; | |
1103 | u16 display_toggle:1; | |
1104 | u16 thinklight_toggle:1; | |
1105 | u16 hibernate_toggle:1; | |
1106 | u16 displayexp_toggle:1; | |
1107 | u16 display_state:1; | |
1108 | u16 brightness_toggle:1; | |
1109 | u16 volume_toggle:1; | |
1110 | u16 mute:1; | |
1111 | ||
1112 | u8 brightness_level; | |
1113 | u8 volume_level; | |
1114 | }; | |
1115 | ||
1116 | static struct task_struct *tpacpi_hotkey_task; | |
1117 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1118 | static int hotkey_poll_freq = 10; /* Hz */ | |
1119 | static struct mutex hotkey_thread_mutex; | |
1120 | static struct mutex hotkey_thread_data_mutex; | |
1121 | static unsigned int hotkey_config_change; | |
1122 | ||
1123 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1124 | ||
1125 | #define hotkey_source_mask 0U | |
1126 | ||
1127 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1128 | ||
f74a27d4 HMH |
1129 | static struct mutex hotkey_mutex; |
1130 | ||
a713b4d7 HMH |
1131 | static enum { /* Reasons for waking up */ |
1132 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1133 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1134 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1135 | } hotkey_wakeup_reason; | |
1136 | ||
1137 | static int hotkey_autosleep_ack; | |
1138 | ||
78f81cc4 | 1139 | static int hotkey_orig_status; |
ae92bd17 | 1140 | static u32 hotkey_orig_mask; |
9b010de5 | 1141 | static u32 hotkey_all_mask; |
6a38abbf | 1142 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1143 | static u32 hotkey_mask; |
6a38abbf | 1144 | |
b21a15f6 HMH |
1145 | static unsigned int hotkey_report_mode; |
1146 | ||
edf0e0e5 | 1147 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1148 | |
94954cc6 | 1149 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1150 | |
01e88f25 HMH |
1151 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1152 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1153 | do { \ |
1154 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1155 | hotkey_config_change++; \ | |
1156 | } while (0); | |
01e88f25 HMH |
1157 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1158 | mutex_unlock(&hotkey_thread_data_mutex); | |
1159 | #else | |
1160 | #define HOTKEY_CONFIG_CRITICAL_START | |
1161 | #define HOTKEY_CONFIG_CRITICAL_END | |
1162 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1163 | ||
6c231bd5 HMH |
1164 | /* HKEY.MHKG() return bits */ |
1165 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1166 | ||
74941a69 HMH |
1167 | static int hotkey_get_wlsw(int *status) |
1168 | { | |
1169 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1170 | return -EIO; | |
1171 | return 0; | |
1172 | } | |
1173 | ||
6c231bd5 HMH |
1174 | static int hotkey_get_tablet_mode(int *status) |
1175 | { | |
1176 | int s; | |
1177 | ||
1178 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1179 | return -EIO; | |
1180 | ||
cee47f5a HMH |
1181 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1182 | return 0; | |
6c231bd5 HMH |
1183 | } |
1184 | ||
b2c985e7 HMH |
1185 | /* |
1186 | * Call with hotkey_mutex held | |
1187 | */ | |
1188 | static int hotkey_mask_get(void) | |
1189 | { | |
01e88f25 HMH |
1190 | u32 m = 0; |
1191 | ||
b2c985e7 | 1192 | if (tp_features.hotkey_mask) { |
01e88f25 | 1193 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1194 | return -EIO; |
1195 | } | |
01e88f25 | 1196 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1197 | |
1198 | return 0; | |
1199 | } | |
1200 | ||
1201 | /* | |
1202 | * Call with hotkey_mutex held | |
1203 | */ | |
1204 | static int hotkey_mask_set(u32 mask) | |
1205 | { | |
1206 | int i; | |
1207 | int rc = 0; | |
1208 | ||
1209 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1210 | if (!tp_warned.hotkey_mask_ff && |
1211 | (mask == 0xffff || mask == 0xffffff || | |
1212 | mask == 0xffffffff)) { | |
1213 | tp_warned.hotkey_mask_ff = 1; | |
1214 | printk(TPACPI_NOTICE | |
1215 | "setting the hotkey mask to 0x%08x is likely " | |
1216 | "not the best way to go about it\n", mask); | |
1217 | printk(TPACPI_NOTICE | |
1218 | "please consider using the driver defaults, " | |
1219 | "and refer to up-to-date thinkpad-acpi " | |
1220 | "documentation\n"); | |
1221 | } | |
1222 | ||
01e88f25 | 1223 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1224 | for (i = 0; i < 32; i++) { |
1225 | u32 m = 1 << i; | |
01e88f25 HMH |
1226 | /* enable in firmware mask only keys not in NVRAM |
1227 | * mode, but enable the key in the cached hotkey_mask | |
1228 | * regardless of mode, or the key will end up | |
1229 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1230 | if (!acpi_evalf(hkey_handle, |
1231 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1232 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1233 | rc = -EIO; |
1234 | break; | |
1235 | } else { | |
1236 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1237 | } | |
1238 | } | |
01e88f25 | 1239 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1240 | |
1241 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1242 | if (!hotkey_mask_get() && !rc && |
1243 | (hotkey_mask & ~hotkey_source_mask) != | |
1244 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1245 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1246 | "requested hot key mask 0x%08x, but " |
1247 | "firmware forced it to 0x%08x\n", | |
1248 | mask, hotkey_mask); | |
1249 | } | |
01e88f25 HMH |
1250 | } else { |
1251 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1252 | HOTKEY_CONFIG_CRITICAL_START | |
1253 | hotkey_mask = mask & hotkey_source_mask; | |
1254 | HOTKEY_CONFIG_CRITICAL_END | |
1255 | hotkey_mask_get(); | |
1256 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1257 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1258 | "requested hot key mask 0x%08x, " |
1259 | "forced to 0x%08x (NVRAM poll mask is " | |
1260 | "0x%08x): no firmware mask support\n", | |
1261 | mask, hotkey_mask, hotkey_source_mask); | |
1262 | } | |
1263 | #else | |
1264 | hotkey_mask_get(); | |
1265 | rc = -ENXIO; | |
1266 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1267 | } |
1268 | ||
1269 | return rc; | |
1270 | } | |
1271 | ||
1272 | static int hotkey_status_get(int *status) | |
1273 | { | |
1274 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1275 | return -EIO; | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | static int hotkey_status_set(int status) | |
1281 | { | |
1282 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1283 | return -EIO; | |
1284 | ||
1285 | return 0; | |
1286 | } | |
1287 | ||
b7c8c200 HMH |
1288 | static void tpacpi_input_send_radiosw(void) |
1289 | { | |
1290 | int wlsw; | |
1291 | ||
b7c8c200 | 1292 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
d147da73 HMH |
1293 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1294 | ||
b7c8c200 HMH |
1295 | input_report_switch(tpacpi_inputdev, |
1296 | SW_RADIO, !!wlsw); | |
1297 | input_sync(tpacpi_inputdev); | |
b7c8c200 | 1298 | |
d147da73 HMH |
1299 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
1300 | } | |
b7c8c200 HMH |
1301 | } |
1302 | ||
6c231bd5 | 1303 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1304 | { |
6c231bd5 | 1305 | int state; |
b3ec6f91 | 1306 | |
6c231bd5 HMH |
1307 | if (tp_features.hotkey_tablet && |
1308 | !hotkey_get_tablet_mode(&state)) { | |
1309 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1310 | |
6c231bd5 HMH |
1311 | input_report_switch(tpacpi_inputdev, |
1312 | SW_TABLET_MODE, !!state); | |
1313 | input_sync(tpacpi_inputdev); | |
1314 | ||
1315 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1316 | } | |
b3ec6f91 HMH |
1317 | } |
1318 | ||
b7c8c200 HMH |
1319 | static void tpacpi_input_send_key(unsigned int scancode) |
1320 | { | |
1321 | unsigned int keycode; | |
1322 | ||
1323 | keycode = hotkey_keycode_map[scancode]; | |
1324 | ||
1325 | if (keycode != KEY_RESERVED) { | |
1326 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1327 | ||
1328 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1329 | if (keycode == KEY_UNKNOWN) | |
1330 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1331 | scancode); | |
1332 | input_sync(tpacpi_inputdev); | |
1333 | ||
1334 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1335 | if (keycode == KEY_UNKNOWN) | |
1336 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1337 | scancode); | |
1338 | input_sync(tpacpi_inputdev); | |
1339 | ||
1340 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1341 | } | |
1342 | } | |
1343 | ||
01e88f25 HMH |
1344 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1345 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1346 | ||
1347 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1348 | { | |
1349 | tpacpi_input_send_key(scancode); | |
1350 | if (hotkey_report_mode < 2) { | |
1351 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1352 | 0x80, 0x1001 + scancode); | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1357 | { | |
1358 | u8 d; | |
1359 | ||
1360 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1361 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1362 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1363 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1364 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1365 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1366 | } | |
1367 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1368 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1369 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1370 | } | |
1371 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1372 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1373 | n->displayexp_toggle = | |
1374 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1375 | } | |
1376 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1377 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1378 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1379 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1380 | n->brightness_toggle = | |
1381 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1382 | } | |
1383 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1384 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1385 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1386 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1387 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1388 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1393 | do { \ |
1394 | if ((mask & (1 << __scancode)) && \ | |
1395 | oldn->__member != newn->__member) \ | |
1396 | tpacpi_hotkey_send_key(__scancode); \ | |
1397 | } while (0) | |
01e88f25 HMH |
1398 | |
1399 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1400 | do { if (mask & (1 << __scancode)) \ | |
1401 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1402 | ||
1403 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1404 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1405 | u32 mask) |
1406 | { | |
1407 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1408 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1409 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1410 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1411 | ||
1412 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1413 | ||
1414 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1415 | ||
1416 | /* handle volume */ | |
1417 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1418 | if (oldn->mute != newn->mute) { | |
1419 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1420 | } | |
1421 | if (oldn->volume_level > newn->volume_level) { | |
1422 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1423 | } else if (oldn->volume_level < newn->volume_level) { | |
1424 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1425 | } else if (oldn->mute == newn->mute) { | |
1426 | /* repeated key presses that didn't change state */ | |
1427 | if (newn->mute) { | |
1428 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1429 | } else if (newn->volume_level != 0) { | |
1430 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1431 | } else { | |
1432 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1433 | } | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | /* handle brightness */ | |
1438 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1439 | if (oldn->brightness_level < newn->brightness_level) { | |
1440 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1441 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1442 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1443 | } else { | |
1444 | /* repeated key presses that didn't change state */ | |
1445 | if (newn->brightness_level != 0) { | |
1446 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1447 | } else { | |
1448 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1449 | } | |
1450 | } | |
1451 | } | |
1452 | } | |
1453 | ||
1454 | #undef TPACPI_COMPARE_KEY | |
1455 | #undef TPACPI_MAY_SEND_KEY | |
1456 | ||
1457 | static int hotkey_kthread(void *data) | |
1458 | { | |
1459 | struct tp_nvram_state s[2]; | |
1460 | u32 mask; | |
1461 | unsigned int si, so; | |
1462 | unsigned long t; | |
1463 | unsigned int change_detector, must_reset; | |
1464 | ||
1465 | mutex_lock(&hotkey_thread_mutex); | |
1466 | ||
1467 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1468 | goto exit; | |
1469 | ||
1470 | set_freezable(); | |
1471 | ||
1472 | so = 0; | |
1473 | si = 1; | |
1474 | t = 0; | |
1475 | ||
1476 | /* Initial state for compares */ | |
1477 | mutex_lock(&hotkey_thread_data_mutex); | |
1478 | change_detector = hotkey_config_change; | |
1479 | mask = hotkey_source_mask & hotkey_mask; | |
1480 | mutex_unlock(&hotkey_thread_data_mutex); | |
1481 | hotkey_read_nvram(&s[so], mask); | |
1482 | ||
1483 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1484 | if (t == 0) | |
1485 | t = 1000/hotkey_poll_freq; | |
1486 | t = msleep_interruptible(t); | |
1487 | if (unlikely(kthread_should_stop())) | |
1488 | break; | |
1489 | must_reset = try_to_freeze(); | |
1490 | if (t > 0 && !must_reset) | |
1491 | continue; | |
1492 | ||
1493 | mutex_lock(&hotkey_thread_data_mutex); | |
1494 | if (must_reset || hotkey_config_change != change_detector) { | |
1495 | /* forget old state on thaw or config change */ | |
1496 | si = so; | |
1497 | t = 0; | |
1498 | change_detector = hotkey_config_change; | |
1499 | } | |
1500 | mask = hotkey_source_mask & hotkey_mask; | |
1501 | mutex_unlock(&hotkey_thread_data_mutex); | |
1502 | ||
1503 | if (likely(mask)) { | |
1504 | hotkey_read_nvram(&s[si], mask); | |
1505 | if (likely(si != so)) { | |
1506 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1507 | mask); |
01e88f25 HMH |
1508 | } |
1509 | } | |
1510 | ||
1511 | so = si; | |
1512 | si ^= 1; | |
1513 | } | |
1514 | ||
1515 | exit: | |
1516 | mutex_unlock(&hotkey_thread_mutex); | |
1517 | return 0; | |
1518 | } | |
1519 | ||
1520 | static void hotkey_poll_stop_sync(void) | |
1521 | { | |
1522 | if (tpacpi_hotkey_task) { | |
1523 | if (frozen(tpacpi_hotkey_task) || | |
1524 | freezing(tpacpi_hotkey_task)) | |
1525 | thaw_process(tpacpi_hotkey_task); | |
1526 | ||
1527 | kthread_stop(tpacpi_hotkey_task); | |
1528 | tpacpi_hotkey_task = NULL; | |
1529 | mutex_lock(&hotkey_thread_mutex); | |
1530 | /* at this point, the thread did exit */ | |
1531 | mutex_unlock(&hotkey_thread_mutex); | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | /* call with hotkey_mutex held */ | |
1536 | static void hotkey_poll_setup(int may_warn) | |
1537 | { | |
1538 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1539 | hotkey_poll_freq > 0 && | |
1540 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1541 | if (!tpacpi_hotkey_task) { | |
1542 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 1543 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
1544 | if (IS_ERR(tpacpi_hotkey_task)) { |
1545 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1546 | printk(TPACPI_ERR |
1547 | "could not create kernel thread " | |
01e88f25 HMH |
1548 | "for hotkey polling\n"); |
1549 | } | |
1550 | } | |
1551 | } else { | |
1552 | hotkey_poll_stop_sync(); | |
1553 | if (may_warn && | |
1554 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1555 | printk(TPACPI_NOTICE |
1556 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1557 | "which is currently disabled\n", |
1558 | hotkey_source_mask); | |
1559 | } | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | static void hotkey_poll_setup_safe(int may_warn) | |
1564 | { | |
1565 | mutex_lock(&hotkey_mutex); | |
1566 | hotkey_poll_setup(may_warn); | |
1567 | mutex_unlock(&hotkey_mutex); | |
1568 | } | |
1569 | ||
1bc6b9cd HMH |
1570 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1571 | ||
1572 | static void hotkey_poll_setup_safe(int __unused) | |
1573 | { | |
1574 | } | |
1575 | ||
1576 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1577 | ||
01e88f25 HMH |
1578 | static int hotkey_inputdev_open(struct input_dev *dev) |
1579 | { | |
1580 | switch (tpacpi_lifecycle) { | |
1581 | case TPACPI_LIFE_INIT: | |
1582 | /* | |
1583 | * hotkey_init will call hotkey_poll_setup_safe | |
1584 | * at the appropriate moment | |
1585 | */ | |
1586 | return 0; | |
1587 | case TPACPI_LIFE_EXITING: | |
1588 | return -EBUSY; | |
1589 | case TPACPI_LIFE_RUNNING: | |
1590 | hotkey_poll_setup_safe(0); | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1595 | BUG(); | |
1596 | return -EBUSY; | |
1597 | } | |
1598 | ||
1599 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1600 | { | |
1601 | /* disable hotkey polling when possible */ | |
1602 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1603 | hotkey_poll_setup_safe(0); | |
1604 | } | |
01e88f25 | 1605 | |
a0416420 HMH |
1606 | /* sysfs hotkey enable ------------------------------------------------- */ |
1607 | static ssize_t hotkey_enable_show(struct device *dev, | |
1608 | struct device_attribute *attr, | |
1609 | char *buf) | |
1610 | { | |
ae92bd17 | 1611 | int res, status; |
a0416420 | 1612 | |
b2c985e7 | 1613 | res = hotkey_status_get(&status); |
a0416420 HMH |
1614 | if (res) |
1615 | return res; | |
1616 | ||
1617 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1618 | } | |
1619 | ||
1620 | static ssize_t hotkey_enable_store(struct device *dev, | |
1621 | struct device_attribute *attr, | |
1622 | const char *buf, size_t count) | |
1623 | { | |
1624 | unsigned long t; | |
b2c985e7 | 1625 | int res; |
a0416420 HMH |
1626 | |
1627 | if (parse_strtoul(buf, 1, &t)) | |
1628 | return -EINVAL; | |
1629 | ||
b2c985e7 | 1630 | res = hotkey_status_set(t); |
a0416420 HMH |
1631 | |
1632 | return (res) ? res : count; | |
1633 | } | |
1634 | ||
1635 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1636 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1637 | hotkey_enable_show, hotkey_enable_store); |
1638 | ||
1639 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1640 | static ssize_t hotkey_mask_show(struct device *dev, | |
1641 | struct device_attribute *attr, | |
1642 | char *buf) | |
1643 | { | |
b2c985e7 | 1644 | int res; |
a0416420 | 1645 | |
b2c985e7 HMH |
1646 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1647 | return -ERESTARTSYS; | |
1648 | res = hotkey_mask_get(); | |
1649 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1650 | |
b2c985e7 HMH |
1651 | return (res)? |
1652 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1653 | } |
1654 | ||
1655 | static ssize_t hotkey_mask_store(struct device *dev, | |
1656 | struct device_attribute *attr, | |
1657 | const char *buf, size_t count) | |
1658 | { | |
1659 | unsigned long t; | |
b2c985e7 | 1660 | int res; |
a0416420 | 1661 | |
ae92bd17 | 1662 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1663 | return -EINVAL; |
1664 | ||
b2c985e7 HMH |
1665 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1666 | return -ERESTARTSYS; | |
1667 | ||
1668 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1669 | |
1670 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1671 | hotkey_poll_setup(1); | |
1672 | #endif | |
1673 | ||
b2c985e7 | 1674 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1675 | |
1676 | return (res) ? res : count; | |
1677 | } | |
1678 | ||
1679 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1680 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1681 | hotkey_mask_show, hotkey_mask_store); |
1682 | ||
1683 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1684 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1685 | struct device_attribute *attr, | |
1686 | char *buf) | |
1687 | { | |
1688 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1689 | } | |
1690 | ||
1691 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1692 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1693 | |
1694 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1695 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1696 | struct device_attribute *attr, | |
1697 | char *buf) | |
1698 | { | |
ae92bd17 | 1699 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1700 | } |
1701 | ||
1702 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1703 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1704 | |
9b010de5 HMH |
1705 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1706 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1707 | struct device_attribute *attr, | |
1708 | char *buf) | |
1709 | { | |
01e88f25 HMH |
1710 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1711 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1712 | } |
1713 | ||
1714 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1715 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1716 | ||
1717 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1718 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1719 | struct device_attribute *attr, | |
1720 | char *buf) | |
1721 | { | |
1722 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1723 | (hotkey_all_mask | hotkey_source_mask) |
1724 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1725 | } |
1726 | ||
1727 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1728 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1729 | hotkey_recommended_mask_show, NULL); | |
1730 | ||
01e88f25 HMH |
1731 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1732 | ||
1733 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1734 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1735 | struct device_attribute *attr, | |
1736 | char *buf) | |
1737 | { | |
1738 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1739 | } | |
1740 | ||
1741 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1742 | struct device_attribute *attr, | |
1743 | const char *buf, size_t count) | |
1744 | { | |
1745 | unsigned long t; | |
1746 | ||
1747 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1748 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1749 | return -EINVAL; | |
1750 | ||
1751 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1752 | return -ERESTARTSYS; | |
1753 | ||
1754 | HOTKEY_CONFIG_CRITICAL_START | |
1755 | hotkey_source_mask = t; | |
1756 | HOTKEY_CONFIG_CRITICAL_END | |
1757 | ||
1758 | hotkey_poll_setup(1); | |
1759 | ||
1760 | mutex_unlock(&hotkey_mutex); | |
1761 | ||
1762 | return count; | |
1763 | } | |
1764 | ||
1765 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1766 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1767 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1768 | ||
1769 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1770 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1771 | struct device_attribute *attr, | |
1772 | char *buf) | |
1773 | { | |
1774 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1775 | } | |
1776 | ||
1777 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1778 | struct device_attribute *attr, | |
1779 | const char *buf, size_t count) | |
1780 | { | |
1781 | unsigned long t; | |
1782 | ||
1783 | if (parse_strtoul(buf, 25, &t)) | |
1784 | return -EINVAL; | |
1785 | ||
1786 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1787 | return -ERESTARTSYS; | |
1788 | ||
1789 | hotkey_poll_freq = t; | |
1790 | ||
1791 | hotkey_poll_setup(1); | |
1792 | mutex_unlock(&hotkey_mutex); | |
1793 | ||
1794 | return count; | |
1795 | } | |
1796 | ||
1797 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1798 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1799 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1800 | ||
1801 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1802 | ||
50ebec09 | 1803 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1804 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1805 | struct device_attribute *attr, | |
1806 | char *buf) | |
1807 | { | |
1808 | int res, s; | |
1809 | res = hotkey_get_wlsw(&s); | |
1810 | if (res < 0) | |
1811 | return res; | |
1812 | ||
1813 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1814 | } | |
1815 | ||
1816 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1817 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1818 | ||
50ebec09 HMH |
1819 | static void hotkey_radio_sw_notify_change(void) |
1820 | { | |
1821 | if (tp_features.hotkey_wlsw) | |
1822 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1823 | "hotkey_radio_sw"); | |
1824 | } | |
1825 | ||
6c231bd5 HMH |
1826 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
1827 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
1828 | struct device_attribute *attr, | |
1829 | char *buf) | |
1830 | { | |
1831 | int res, s; | |
1832 | res = hotkey_get_tablet_mode(&s); | |
1833 | if (res < 0) | |
1834 | return res; | |
1835 | ||
1836 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1837 | } | |
1838 | ||
1839 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
1840 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
1841 | ||
1842 | static void hotkey_tablet_mode_notify_change(void) | |
1843 | { | |
1844 | if (tp_features.hotkey_tablet) | |
1845 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1846 | "hotkey_tablet_mode"); | |
1847 | } | |
1848 | ||
ff80f137 HMH |
1849 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1850 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1851 | struct device_attribute *attr, | |
1852 | char *buf) | |
1853 | { | |
1854 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1855 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1856 | } | |
1857 | ||
1858 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1859 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1860 | ||
50ebec09 | 1861 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
1862 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
1863 | struct device_attribute *attr, | |
1864 | char *buf) | |
1865 | { | |
1866 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
1867 | } | |
1868 | ||
1869 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
1870 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
1871 | ||
1d5a2b54 | 1872 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
1873 | { |
1874 | if (tp_features.hotkey_mask) | |
1875 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1876 | "wakeup_reason"); | |
1877 | } | |
1878 | ||
1879 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
1880 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
1881 | struct device_attribute *attr, | |
1882 | char *buf) | |
1883 | { | |
1884 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
1885 | } | |
1886 | ||
1887 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
1888 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
1889 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
1890 | ||
1d5a2b54 | 1891 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
1892 | { |
1893 | if (tp_features.hotkey_mask) | |
1894 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1895 | "wakeup_hotunplug_complete"); | |
1896 | } | |
1897 | ||
a0416420 HMH |
1898 | /* --------------------------------------------------------------------- */ |
1899 | ||
ff80f137 HMH |
1900 | static struct attribute *hotkey_attributes[] __initdata = { |
1901 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1902 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1903 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1904 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1905 | &dev_attr_hotkey_mask.attr, | |
1906 | &dev_attr_hotkey_all_mask.attr, | |
1907 | &dev_attr_hotkey_recommended_mask.attr, | |
1908 | &dev_attr_hotkey_source_mask.attr, | |
1909 | &dev_attr_hotkey_poll_freq.attr, | |
1910 | #endif | |
ff80f137 HMH |
1911 | }; |
1912 | ||
1913 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1914 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1915 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1916 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1917 | &dev_attr_hotkey_all_mask.attr, |
1918 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1919 | #endif |
a713b4d7 HMH |
1920 | &dev_attr_hotkey_wakeup_reason.attr, |
1921 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
1922 | }; |
1923 | ||
a5763f22 | 1924 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1925 | { |
0f089147 HMH |
1926 | /* Requirements for changing the default keymaps: |
1927 | * | |
1928 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1929 | * good reasons. Do not change them unless you have deep | |
1930 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1931 | * the various ThinkPad models. The driver behaves | |
1932 | * differently for KEY_RESERVED: such keys have their | |
1933 | * hot key mask *unset* in mask_recommended, and also | |
1934 | * in the initial hot key mask programmed into the | |
1935 | * firmware at driver load time, which means the firm- | |
1936 | * ware may react very differently if you change them to | |
1937 | * something else; | |
1938 | * | |
1939 | * 2. You must be subscribed to the linux-thinkpad and | |
1940 | * ibm-acpi-devel mailing lists, and you should read the | |
1941 | * list archives since 2007 if you want to change the | |
1942 | * keymaps. This requirement exists so that you will | |
1943 | * know the past history of problems with the thinkpad- | |
1944 | * acpi driver keymaps, and also that you will be | |
1945 | * listening to any bug reports; | |
1946 | * | |
1947 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1948 | * for merging, *ever*. Send them to the linux-acpi | |
1949 | * mailinglist for comments. Merging is to be done only | |
1950 | * through acpi-test and the ACPI maintainer. | |
1951 | * | |
1952 | * If the above is too much to ask, don't change the keymap. | |
1953 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1954 | */ | |
edf0e0e5 HMH |
1955 | static u16 ibm_keycode_map[] __initdata = { |
1956 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1957 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1958 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1959 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1960 | |
1961 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1962 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1963 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1964 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1965 | |
1966 | /* brightness: firmware always reacts to them, unless | |
1967 | * X.org did some tricks in the radeon BIOS scratch | |
1968 | * registers of *some* models */ | |
e927c08d | 1969 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1970 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1971 | |
1972 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1973 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1974 | |
edf0e0e5 HMH |
1975 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1976 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1977 | |
1978 | /* Volume: firmware always react to it and reprograms | |
1979 | * the built-in *extra* mixer. Never map it to control | |
1980 | * another mixer by default. */ | |
e927c08d HMH |
1981 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1982 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1983 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1984 | |
edf0e0e5 | 1985 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1986 | |
edf0e0e5 HMH |
1987 | /* (assignments unknown, please report if found) */ |
1988 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1989 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1990 | }; | |
1991 | static u16 lenovo_keycode_map[] __initdata = { | |
1992 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1993 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1994 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1995 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1996 | |
1997 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1998 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1999 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2000 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 2001 | |
b5972796 HMH |
2002 | /* These either have to go through ACPI video, or |
2003 | * act like in the IBM ThinkPads, so don't ever | |
2004 | * enable them by default */ | |
56a185b4 | 2005 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2006 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2007 | |
edf0e0e5 | 2008 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2009 | |
edf0e0e5 HMH |
2010 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2011 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2012 | |
2013 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2014 | * react to it and reprograms the built-in *extra* mixer. | |
2015 | * Never map it to control another mixer by default. | |
2016 | * | |
2017 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2018 | * these over the regular keyboard, so these are no-ops, | |
2019 | * but there are still weird bugs re. MUTE, so do not | |
2020 | * change unless you get test reports from all Lenovo | |
2021 | * models. May cause the BIOS to interfere with the | |
2022 | * HDA mixer. | |
2023 | */ | |
e927c08d HMH |
2024 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2025 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2026 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2027 | |
edf0e0e5 | 2028 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2029 | |
edf0e0e5 HMH |
2030 | /* (assignments unknown, please report if found) */ |
2031 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2032 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2033 | }; | |
2034 | ||
2035 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2036 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2037 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2038 | ||
6a38abbf | 2039 | int res, i; |
74941a69 | 2040 | int status; |
1b6521dc | 2041 | int hkeyv; |
b86c4722 | 2042 | |
fe08bc4b HMH |
2043 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2044 | ||
6a38abbf | 2045 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2046 | BUG_ON(tpacpi_inputdev->open != NULL || |
2047 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2048 | |
e0c7dfe7 | 2049 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2050 | mutex_init(&hotkey_mutex); |
5fba344c | 2051 | |
01e88f25 HMH |
2052 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2053 | mutex_init(&hotkey_thread_mutex); | |
2054 | mutex_init(&hotkey_thread_data_mutex); | |
2055 | #endif | |
2056 | ||
56b6aeb0 | 2057 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2058 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2059 | |
fe08bc4b | 2060 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2061 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2062 | |
d8fd94d9 | 2063 | if (tp_features.hotkey) { |
6c231bd5 | 2064 | hotkey_dev_attributes = create_attr_set(13, NULL); |
a0416420 HMH |
2065 | if (!hotkey_dev_attributes) |
2066 | return -ENOMEM; | |
ff80f137 HMH |
2067 | res = add_many_to_attr_set(hotkey_dev_attributes, |
2068 | hotkey_attributes, | |
2069 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
2070 | if (res) |
2071 | return res; | |
2072 | ||
56b6aeb0 | 2073 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
2074 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
2075 | for HKEY interface version 0x100 */ | |
2076 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2077 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 2078 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 2079 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
2080 | printk(TPACPI_ERR "please report this to %s\n", |
2081 | TPACPI_MAIL); | |
1b6521dc HMH |
2082 | } else { |
2083 | /* | |
2084 | * MHKV 0x100 in A31, R40, R40e, | |
2085 | * T4x, X31, and later | |
01e88f25 | 2086 | */ |
1b6521dc HMH |
2087 | tp_features.hotkey_mask = 1; |
2088 | } | |
2089 | } | |
56b6aeb0 | 2090 | |
fe08bc4b | 2091 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 2092 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 2093 | |
9b010de5 | 2094 | if (tp_features.hotkey_mask) { |
9b010de5 | 2095 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 2096 | "MHKA", "qd")) { |
e0c7dfe7 | 2097 | printk(TPACPI_ERR |
1b6521dc HMH |
2098 | "missing MHKA handler, " |
2099 | "please report this to %s\n", | |
e0c7dfe7 | 2100 | TPACPI_MAIL); |
35ff8b9f HMH |
2101 | /* FN+F12, FN+F4, FN+F3 */ |
2102 | hotkey_all_mask = 0x080cU; | |
1b6521dc | 2103 | } |
9b010de5 HMH |
2104 | } |
2105 | ||
01e88f25 HMH |
2106 | /* hotkey_source_mask *must* be zero for |
2107 | * the first hotkey_mask_get */ | |
b2c985e7 | 2108 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 2109 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
2110 | res = hotkey_mask_get(); |
2111 | hotkey_orig_mask = hotkey_mask; | |
2112 | if (!res) { | |
2113 | res = add_many_to_attr_set( | |
2114 | hotkey_dev_attributes, | |
2115 | hotkey_mask_attributes, | |
2116 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2117 | } | |
a0416420 | 2118 | } |
74941a69 | 2119 | |
01e88f25 HMH |
2120 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2121 | if (tp_features.hotkey_mask) { | |
2122 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2123 | & ~hotkey_all_mask; | |
2124 | } else { | |
2125 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2126 | } | |
2127 | ||
2128 | vdbg_printk(TPACPI_DBG_INIT, | |
2129 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2130 | hotkey_source_mask, hotkey_poll_freq); | |
2131 | #endif | |
2132 | ||
74941a69 HMH |
2133 | /* Not all thinkpads have a hardware radio switch */ |
2134 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2135 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 2136 | printk(TPACPI_INFO |
74941a69 HMH |
2137 | "radio switch found; radios are %s\n", |
2138 | enabled(status, 0)); | |
2139 | res = add_to_attr_set(hotkey_dev_attributes, | |
2140 | &dev_attr_hotkey_radio_sw.attr); | |
2141 | } | |
2142 | ||
6c231bd5 HMH |
2143 | /* For X41t, X60t, X61t Tablets... */ |
2144 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2145 | tp_features.hotkey_tablet = 1; | |
2146 | printk(TPACPI_INFO | |
2147 | "possible tablet mode switch found; " | |
2148 | "ThinkPad in %s mode\n", | |
2149 | (status & TP_HOTKEY_TABLET_MASK)? | |
2150 | "tablet" : "laptop"); | |
2151 | res = add_to_attr_set(hotkey_dev_attributes, | |
2152 | &dev_attr_hotkey_tablet_mode.attr); | |
2153 | } | |
2154 | ||
a0416420 HMH |
2155 | if (!res) |
2156 | res = register_attr_set_with_sysfs( | |
2157 | hotkey_dev_attributes, | |
2158 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
2159 | if (res) |
2160 | return res; | |
6a38abbf | 2161 | |
edf0e0e5 HMH |
2162 | /* Set up key map */ |
2163 | ||
2164 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
2165 | GFP_KERNEL); | |
2166 | if (!hotkey_keycode_map) { | |
35ff8b9f HMH |
2167 | printk(TPACPI_ERR |
2168 | "failed to allocate memory for key map\n"); | |
edf0e0e5 HMH |
2169 | return -ENOMEM; |
2170 | } | |
2171 | ||
2172 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
2173 | dbg_printk(TPACPI_DBG_INIT, | |
2174 | "using Lenovo default hot key map\n"); | |
2175 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2176 | TPACPI_HOTKEY_MAP_SIZE); | |
2177 | } else { | |
2178 | dbg_printk(TPACPI_DBG_INIT, | |
2179 | "using IBM default hot key map\n"); | |
2180 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2181 | TPACPI_HOTKEY_MAP_SIZE); | |
2182 | } | |
2183 | ||
6a38abbf HMH |
2184 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2185 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2186 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
2187 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
2188 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2189 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2190 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
2191 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
2192 | set_bit(hotkey_keycode_map[i], | |
2193 | tpacpi_inputdev->keybit); | |
2194 | } else { | |
2195 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2196 | hotkey_reserved_mask |= 1 << i; | |
2197 | } | |
2198 | } | |
2199 | ||
5c29d58f HMH |
2200 | if (tp_features.hotkey_wlsw) { |
2201 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2202 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
2203 | } | |
6c231bd5 | 2204 | if (tp_features.hotkey_tablet) { |
b3ec6f91 HMH |
2205 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
2206 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2207 | } | |
5c29d58f | 2208 | |
b5972796 HMH |
2209 | /* Do not issue duplicate brightness change events to |
2210 | * userspace */ | |
2211 | if (!tp_features.bright_acpimode) | |
2212 | /* update bright_acpimode... */ | |
2213 | tpacpi_check_std_acpi_brightness_support(); | |
2214 | ||
2215 | if (tp_features.bright_acpimode) { | |
2216 | printk(TPACPI_INFO | |
2217 | "This ThinkPad has standard ACPI backlight " | |
2218 | "brightness control, supported by the ACPI " | |
2219 | "video driver\n"); | |
2220 | printk(TPACPI_NOTICE | |
2221 | "Disabling thinkpad-acpi brightness events " | |
2222 | "by default...\n"); | |
2223 | ||
2224 | /* The hotkey_reserved_mask change below is not | |
2225 | * necessary while the keys are at KEY_RESERVED in the | |
2226 | * default map, but better safe than sorry, leave it | |
2227 | * here as a marker of what we have to do, especially | |
2228 | * when we finally become able to set this at runtime | |
2229 | * on response to X.org requests */ | |
2230 | hotkey_reserved_mask |= | |
2231 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2232 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2233 | } | |
2234 | ||
1a343760 HMH |
2235 | dbg_printk(TPACPI_DBG_INIT, |
2236 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2237 | res = hotkey_status_set(1); |
2238 | if (res) | |
2239 | return res; | |
01e88f25 HMH |
2240 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2241 | & ~hotkey_reserved_mask) | |
1a343760 | 2242 | | hotkey_orig_mask); |
01e88f25 | 2243 | if (res < 0 && res != -ENXIO) |
1a343760 | 2244 | return res; |
ff80f137 HMH |
2245 | |
2246 | dbg_printk(TPACPI_DBG_INIT, | |
2247 | "legacy hot key reporting over procfs %s\n", | |
2248 | (hotkey_report_mode < 2) ? | |
2249 | "enabled" : "disabled"); | |
01e88f25 | 2250 | |
01e88f25 HMH |
2251 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2252 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2253 | ||
2254 | hotkey_poll_setup_safe(1); | |
7526696a | 2255 | tpacpi_input_send_radiosw(); |
6c231bd5 | 2256 | tpacpi_input_send_tabletsw(); |
56b6aeb0 HMH |
2257 | } |
2258 | ||
d8fd94d9 | 2259 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2260 | } |
2261 | ||
2262 | static void hotkey_exit(void) | |
2263 | { | |
01e88f25 HMH |
2264 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2265 | hotkey_poll_stop_sync(); | |
2266 | #endif | |
2267 | ||
d8fd94d9 | 2268 | if (tp_features.hotkey) { |
35ff8b9f HMH |
2269 | dbg_printk(TPACPI_DBG_EXIT, |
2270 | "restoring original hot key mask\n"); | |
b2c985e7 HMH |
2271 | /* no short-circuit boolean operator below! */ |
2272 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2273 | hotkey_status_set(hotkey_orig_status)) != 0) | |
35ff8b9f HMH |
2274 | printk(TPACPI_ERR |
2275 | "failed to restore hot key mask " | |
2276 | "to BIOS defaults\n"); | |
5fba344c | 2277 | } |
a0416420 HMH |
2278 | |
2279 | if (hotkey_dev_attributes) { | |
2280 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2281 | hotkey_dev_attributes = NULL; | |
2282 | } | |
56b6aeb0 HMH |
2283 | } |
2284 | ||
2285 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2286 | { | |
6a38abbf | 2287 | u32 hkey; |
b7c8c200 | 2288 | unsigned int scancode; |
3eea123d | 2289 | int send_acpi_ev; |
3e5ce914 | 2290 | int ignore_acpi_ev; |
3b64b51d | 2291 | int unk_ev; |
3eea123d HMH |
2292 | |
2293 | if (event != 0x80) { | |
35ff8b9f HMH |
2294 | printk(TPACPI_ERR |
2295 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2296 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2297 | acpi_bus_generate_netlink_event( |
2298 | ibm->acpi->device->pnp.device_class, | |
2299 | ibm->acpi->device->dev.bus_id, | |
2300 | event, 0); | |
3eea123d HMH |
2301 | return; |
2302 | } | |
2303 | ||
2304 | while (1) { | |
2305 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2306 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2307 | return; |
2308 | } | |
2309 | ||
2310 | if (hkey == 0) { | |
2311 | /* queue empty */ | |
2312 | return; | |
2313 | } | |
2314 | ||
3b64b51d | 2315 | send_acpi_ev = 1; |
3e5ce914 | 2316 | ignore_acpi_ev = 0; |
3b64b51d | 2317 | unk_ev = 0; |
56b6aeb0 | 2318 | |
ff80f137 HMH |
2319 | switch (hkey >> 12) { |
2320 | case 1: | |
2321 | /* 0x1000-0x1FFF: key presses */ | |
2322 | scancode = hkey & 0xfff; | |
2323 | if (scancode > 0 && scancode < 0x21) { | |
2324 | scancode--; | |
01e88f25 HMH |
2325 | if (!(hotkey_source_mask & (1 << scancode))) { |
2326 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2327 | send_acpi_ev = 0; |
01e88f25 HMH |
2328 | } else { |
2329 | ignore_acpi_ev = 1; | |
2330 | } | |
ff80f137 | 2331 | } else { |
3b64b51d | 2332 | unk_ev = 1; |
ff80f137 HMH |
2333 | } |
2334 | break; | |
a713b4d7 HMH |
2335 | case 2: |
2336 | /* Wakeup reason */ | |
2337 | switch (hkey) { | |
2338 | case 0x2304: /* suspend, undock */ | |
2339 | case 0x2404: /* hibernation, undock */ | |
2340 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2341 | ignore_acpi_ev = 1; | |
2342 | break; | |
2343 | case 0x2305: /* suspend, bay eject */ | |
2344 | case 0x2405: /* hibernation, bay eject */ | |
2345 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2346 | ignore_acpi_ev = 1; | |
2347 | break; | |
2348 | default: | |
2349 | unk_ev = 1; | |
2350 | } | |
2351 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2352 | printk(TPACPI_INFO | |
2353 | "woke up due to a hot-unplug " | |
2354 | "request...\n"); | |
50ebec09 | 2355 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2356 | } |
2357 | break; | |
2358 | case 3: | |
2359 | /* bay-related wakeups */ | |
2360 | if (hkey == 0x3003) { | |
2361 | hotkey_autosleep_ack = 1; | |
2362 | printk(TPACPI_INFO | |
2363 | "bay ejected\n"); | |
50ebec09 | 2364 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2365 | } else { |
2366 | unk_ev = 1; | |
2367 | } | |
2368 | break; | |
2369 | case 4: | |
2370 | /* dock-related wakeups */ | |
2371 | if (hkey == 0x4003) { | |
2372 | hotkey_autosleep_ack = 1; | |
2373 | printk(TPACPI_INFO | |
2374 | "undocked\n"); | |
50ebec09 | 2375 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2376 | } else { |
2377 | unk_ev = 1; | |
2378 | } | |
2379 | break; | |
ff80f137 | 2380 | case 5: |
d1edb2b5 | 2381 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2382 | switch (hkey) { |
d1edb2b5 | 2383 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2384 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2385 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2386 | break; |
6c231bd5 HMH |
2387 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2388 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2389 | tpacpi_input_send_tabletsw(); | |
2390 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2391 | send_acpi_ev = 0; |
2392 | break; | |
3b64b51d HMH |
2393 | case 0x5001: |
2394 | case 0x5002: | |
2395 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2396 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2397 | break; |
2398 | default: | |
2399 | unk_ev = 1; | |
ff80f137 HMH |
2400 | } |
2401 | break; | |
2402 | case 7: | |
2403 | /* 0x7000-0x7FFF: misc */ | |
2404 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2405 | tpacpi_input_send_radiosw(); | |
50ebec09 | 2406 | hotkey_radio_sw_notify_change(); |
3b64b51d | 2407 | send_acpi_ev = 0; |
6a38abbf | 2408 | break; |
6a38abbf | 2409 | } |
ff80f137 HMH |
2410 | /* fallthrough to default */ |
2411 | default: | |
3b64b51d HMH |
2412 | unk_ev = 1; |
2413 | } | |
2414 | if (unk_ev) { | |
35ff8b9f HMH |
2415 | printk(TPACPI_NOTICE |
2416 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2417 | } |
ff80f137 | 2418 | |
3eea123d | 2419 | /* Legacy events */ |
35ff8b9f HMH |
2420 | if (!ignore_acpi_ev && |
2421 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2422 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2423 | event, hkey); | |
3e5ce914 | 2424 | } |
ff80f137 | 2425 | |
3eea123d | 2426 | /* netlink events */ |
3e5ce914 | 2427 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2428 | acpi_bus_generate_netlink_event( |
2429 | ibm->acpi->device->pnp.device_class, | |
2430 | ibm->acpi->device->dev.bus_id, | |
2431 | event, hkey); | |
3eea123d | 2432 | } |
56b6aeb0 HMH |
2433 | } |
2434 | } | |
2435 | ||
a713b4d7 HMH |
2436 | static void hotkey_suspend(pm_message_t state) |
2437 | { | |
2438 | /* Do these on suspend, we get the events on early resume! */ | |
2439 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2440 | hotkey_autosleep_ack = 0; | |
2441 | } | |
2442 | ||
5c29d58f HMH |
2443 | static void hotkey_resume(void) |
2444 | { | |
b2c985e7 | 2445 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2446 | printk(TPACPI_ERR |
2447 | "error while trying to read hot key mask " | |
2448 | "from firmware\n"); | |
5c29d58f | 2449 | tpacpi_input_send_radiosw(); |
50ebec09 | 2450 | hotkey_radio_sw_notify_change(); |
6c231bd5 | 2451 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2452 | hotkey_wakeup_reason_notify_change(); |
2453 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2454 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2455 | } |
2456 | ||
a0416420 | 2457 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2458 | static int hotkey_read(char *p) |
1da177e4 | 2459 | { |
ae92bd17 | 2460 | int res, status; |
1da177e4 LT |
2461 | int len = 0; |
2462 | ||
d8fd94d9 | 2463 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2464 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2465 | return len; | |
2466 | } | |
2467 | ||
fc589a3c HMH |
2468 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2469 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2470 | res = hotkey_status_get(&status); |
2471 | if (!res) | |
2472 | res = hotkey_mask_get(); | |
40ca9fdf | 2473 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2474 | if (res) |
2475 | return res; | |
1da177e4 LT |
2476 | |
2477 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2478 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2479 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2480 | len += sprintf(p + len, |
2481 | "commands:\tenable, disable, reset, <mask>\n"); | |
2482 | } else { | |
2483 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2484 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2485 | } | |
2486 | ||
2487 | return len; | |
2488 | } | |
2489 | ||
78f81cc4 | 2490 | static int hotkey_write(char *buf) |
1da177e4 | 2491 | { |
ae92bd17 HMH |
2492 | int res, status; |
2493 | u32 mask; | |
1da177e4 | 2494 | char *cmd; |
1da177e4 | 2495 | |
d8fd94d9 | 2496 | if (!tp_features.hotkey) |
1da177e4 LT |
2497 | return -ENODEV; |
2498 | ||
fc589a3c HMH |
2499 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2500 | return -ERESTARTSYS; | |
40ca9fdf | 2501 | |
b2c985e7 HMH |
2502 | status = -1; |
2503 | mask = hotkey_mask; | |
78f81cc4 | 2504 | |
40ca9fdf | 2505 | res = 0; |
1da177e4 LT |
2506 | while ((cmd = next_cmd(&buf))) { |
2507 | if (strlencmp(cmd, "enable") == 0) { | |
2508 | status = 1; | |
2509 | } else if (strlencmp(cmd, "disable") == 0) { | |
2510 | status = 0; | |
2511 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2512 | status = hotkey_orig_status; |
2513 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2514 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2515 | /* mask set */ | |
2516 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2517 | /* mask set */ | |
40ca9fdf HMH |
2518 | } else { |
2519 | res = -EINVAL; | |
2520 | goto errexit; | |
2521 | } | |
1da177e4 | 2522 | } |
b2c985e7 HMH |
2523 | if (status != -1) |
2524 | res = hotkey_status_set(status); | |
1da177e4 | 2525 | |
b2c985e7 HMH |
2526 | if (!res && mask != hotkey_mask) |
2527 | res = hotkey_mask_set(mask); | |
1da177e4 | 2528 | |
40ca9fdf HMH |
2529 | errexit: |
2530 | mutex_unlock(&hotkey_mutex); | |
2531 | return res; | |
78f81cc4 | 2532 | } |
1da177e4 | 2533 | |
1ba90e3a | 2534 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2535 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2536 | {"", 0}, |
2537 | }; | |
2538 | ||
8d376cd6 | 2539 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2540 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2541 | .notify = hotkey_notify, |
2542 | .handle = &hkey_handle, | |
2543 | .type = ACPI_DEVICE_NOTIFY, | |
2544 | }; | |
2545 | ||
a5763f22 HMH |
2546 | static struct ibm_struct hotkey_driver_data = { |
2547 | .name = "hotkey", | |
a5763f22 HMH |
2548 | .read = hotkey_read, |
2549 | .write = hotkey_write, | |
2550 | .exit = hotkey_exit, | |
5c29d58f | 2551 | .resume = hotkey_resume, |
a713b4d7 | 2552 | .suspend = hotkey_suspend, |
8d376cd6 | 2553 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2554 | }; |
2555 | ||
56b6aeb0 HMH |
2556 | /************************************************************************* |
2557 | * Bluetooth subdriver | |
2558 | */ | |
1da177e4 | 2559 | |
f74a27d4 HMH |
2560 | enum { |
2561 | /* ACPI GBDC/SBDC bits */ | |
2562 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2563 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2564 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2565 | }; | |
2566 | ||
2567 | static int bluetooth_get_radiosw(void); | |
2568 | static int bluetooth_set_radiosw(int radio_on); | |
2569 | ||
d3a6ade4 HMH |
2570 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2571 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2572 | struct device_attribute *attr, | |
2573 | char *buf) | |
2574 | { | |
2575 | int status; | |
2576 | ||
2577 | status = bluetooth_get_radiosw(); | |
2578 | if (status < 0) | |
2579 | return status; | |
2580 | ||
2581 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2582 | } | |
2583 | ||
2584 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2585 | struct device_attribute *attr, | |
2586 | const char *buf, size_t count) | |
2587 | { | |
2588 | unsigned long t; | |
2589 | int res; | |
2590 | ||
2591 | if (parse_strtoul(buf, 1, &t)) | |
2592 | return -EINVAL; | |
2593 | ||
2594 | res = bluetooth_set_radiosw(t); | |
2595 | ||
2596 | return (res) ? res : count; | |
2597 | } | |
2598 | ||
2599 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2600 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2601 | bluetooth_enable_show, bluetooth_enable_store); |
2602 | ||
2603 | /* --------------------------------------------------------------------- */ | |
2604 | ||
2605 | static struct attribute *bluetooth_attributes[] = { | |
2606 | &dev_attr_bluetooth_enable.attr, | |
2607 | NULL | |
2608 | }; | |
2609 | ||
2610 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2611 | .attrs = bluetooth_attributes, |
2612 | }; | |
2613 | ||
a5763f22 | 2614 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2615 | { |
d3a6ade4 | 2616 | int res; |
d6fdd1e9 HMH |
2617 | int status = 0; |
2618 | ||
fe08bc4b HMH |
2619 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2620 | ||
e0c7dfe7 | 2621 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2622 | |
78f81cc4 BD |
2623 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2624 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2625 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2626 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2627 | ||
2628 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2629 | str_supported(tp_features.bluetooth), | |
2630 | status); | |
2631 | ||
d3a6ade4 HMH |
2632 | if (tp_features.bluetooth) { |
2633 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2634 | /* no bluetooth hardware present in system */ | |
2635 | tp_features.bluetooth = 0; | |
2636 | dbg_printk(TPACPI_DBG_INIT, | |
2637 | "bluetooth hardware not installed\n"); | |
2638 | } else { | |
2639 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2640 | &bluetooth_attr_group); | |
2641 | if (res) | |
2642 | return res; | |
2643 | } | |
d6fdd1e9 | 2644 | } |
fe08bc4b | 2645 | |
d8fd94d9 | 2646 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2647 | } |
2648 | ||
d3a6ade4 HMH |
2649 | static void bluetooth_exit(void) |
2650 | { | |
2651 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2652 | &bluetooth_attr_group); | |
2653 | } | |
2654 | ||
d6fdd1e9 | 2655 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2656 | { |
2657 | int status; | |
2658 | ||
d6fdd1e9 HMH |
2659 | if (!tp_features.bluetooth) |
2660 | return -ENODEV; | |
1da177e4 | 2661 | |
d6fdd1e9 HMH |
2662 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2663 | return -EIO; | |
2664 | ||
2665 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2666 | } | |
2667 | ||
2668 | static int bluetooth_set_radiosw(int radio_on) | |
2669 | { | |
2670 | int status; | |
2671 | ||
2672 | if (!tp_features.bluetooth) | |
2673 | return -ENODEV; | |
2674 | ||
2675 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2676 | return -EIO; | |
2677 | if (radio_on) | |
2678 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2679 | else | |
2680 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2681 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2682 | return -EIO; | |
2683 | ||
2684 | return 0; | |
1da177e4 LT |
2685 | } |
2686 | ||
d3a6ade4 | 2687 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2688 | static int bluetooth_read(char *p) |
1da177e4 LT |
2689 | { |
2690 | int len = 0; | |
d6fdd1e9 | 2691 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2692 | |
d8fd94d9 | 2693 | if (!tp_features.bluetooth) |
1da177e4 | 2694 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2695 | else { |
d6fdd1e9 HMH |
2696 | len += sprintf(p + len, "status:\t\t%s\n", |
2697 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2698 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2699 | } | |
2700 | ||
2701 | return len; | |
2702 | } | |
2703 | ||
78f81cc4 | 2704 | static int bluetooth_write(char *buf) |
1da177e4 | 2705 | { |
1da177e4 | 2706 | char *cmd; |
1da177e4 | 2707 | |
d8fd94d9 | 2708 | if (!tp_features.bluetooth) |
78f81cc4 | 2709 | return -ENODEV; |
1da177e4 LT |
2710 | |
2711 | while ((cmd = next_cmd(&buf))) { | |
2712 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2713 | bluetooth_set_radiosw(1); |
1da177e4 | 2714 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2715 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2716 | } else |
2717 | return -EINVAL; | |
1da177e4 LT |
2718 | } |
2719 | ||
1da177e4 LT |
2720 | return 0; |
2721 | } | |
2722 | ||
a5763f22 HMH |
2723 | static struct ibm_struct bluetooth_driver_data = { |
2724 | .name = "bluetooth", | |
2725 | .read = bluetooth_read, | |
2726 | .write = bluetooth_write, | |
d3a6ade4 | 2727 | .exit = bluetooth_exit, |
a5763f22 HMH |
2728 | }; |
2729 | ||
56b6aeb0 HMH |
2730 | /************************************************************************* |
2731 | * Wan subdriver | |
2732 | */ | |
2733 | ||
f74a27d4 HMH |
2734 | enum { |
2735 | /* ACPI GWAN/SWAN bits */ | |
2736 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2737 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2738 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2739 | }; | |
2740 | ||
2741 | static int wan_get_radiosw(void); | |
2742 | static int wan_set_radiosw(int radio_on); | |
2743 | ||
d3a6ade4 HMH |
2744 | /* sysfs wan enable ---------------------------------------------------- */ |
2745 | static ssize_t wan_enable_show(struct device *dev, | |
2746 | struct device_attribute *attr, | |
2747 | char *buf) | |
2748 | { | |
2749 | int status; | |
2750 | ||
2751 | status = wan_get_radiosw(); | |
2752 | if (status < 0) | |
2753 | return status; | |
2754 | ||
2755 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2756 | } | |
2757 | ||
2758 | static ssize_t wan_enable_store(struct device *dev, | |
2759 | struct device_attribute *attr, | |
2760 | const char *buf, size_t count) | |
2761 | { | |
2762 | unsigned long t; | |
2763 | int res; | |
2764 | ||
2765 | if (parse_strtoul(buf, 1, &t)) | |
2766 | return -EINVAL; | |
2767 | ||
2768 | res = wan_set_radiosw(t); | |
2769 | ||
2770 | return (res) ? res : count; | |
2771 | } | |
2772 | ||
2773 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2774 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2775 | wan_enable_show, wan_enable_store); |
2776 | ||
2777 | /* --------------------------------------------------------------------- */ | |
2778 | ||
2779 | static struct attribute *wan_attributes[] = { | |
2780 | &dev_attr_wan_enable.attr, | |
2781 | NULL | |
2782 | }; | |
2783 | ||
2784 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2785 | .attrs = wan_attributes, |
2786 | }; | |
2787 | ||
a5763f22 | 2788 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2789 | { |
d3a6ade4 | 2790 | int res; |
d6fdd1e9 HMH |
2791 | int status = 0; |
2792 | ||
fe08bc4b HMH |
2793 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2794 | ||
e0c7dfe7 | 2795 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2796 | |
d8fd94d9 | 2797 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2798 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2799 | ||
2800 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2801 | str_supported(tp_features.wan), | |
2802 | status); | |
2803 | ||
d3a6ade4 HMH |
2804 | if (tp_features.wan) { |
2805 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2806 | /* no wan hardware present in system */ | |
2807 | tp_features.wan = 0; | |
2808 | dbg_printk(TPACPI_DBG_INIT, | |
2809 | "wan hardware not installed\n"); | |
2810 | } else { | |
2811 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2812 | &wan_attr_group); | |
2813 | if (res) | |
2814 | return res; | |
2815 | } | |
d6fdd1e9 | 2816 | } |
fe08bc4b | 2817 | |
d8fd94d9 | 2818 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2819 | } |
2820 | ||
d3a6ade4 HMH |
2821 | static void wan_exit(void) |
2822 | { | |
2823 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2824 | &wan_attr_group); | |
2825 | } | |
2826 | ||
d6fdd1e9 | 2827 | static int wan_get_radiosw(void) |
42adb53c JF |
2828 | { |
2829 | int status; | |
2830 | ||
d6fdd1e9 HMH |
2831 | if (!tp_features.wan) |
2832 | return -ENODEV; | |
42adb53c | 2833 | |
d6fdd1e9 HMH |
2834 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2835 | return -EIO; | |
2836 | ||
2837 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2838 | } | |
2839 | ||
2840 | static int wan_set_radiosw(int radio_on) | |
2841 | { | |
2842 | int status; | |
2843 | ||
2844 | if (!tp_features.wan) | |
2845 | return -ENODEV; | |
2846 | ||
2847 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2848 | return -EIO; | |
2849 | if (radio_on) | |
2850 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2851 | else | |
2852 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2853 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2854 | return -EIO; | |
2855 | ||
2856 | return 0; | |
42adb53c JF |
2857 | } |
2858 | ||
d3a6ade4 | 2859 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2860 | static int wan_read(char *p) |
2861 | { | |
2862 | int len = 0; | |
d6fdd1e9 | 2863 | int status = wan_get_radiosw(); |
42adb53c | 2864 | |
d8fd94d9 | 2865 | if (!tp_features.wan) |
42adb53c | 2866 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2867 | else { |
d6fdd1e9 HMH |
2868 | len += sprintf(p + len, "status:\t\t%s\n", |
2869 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2870 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2871 | } | |
2872 | ||
2873 | return len; | |
2874 | } | |
2875 | ||
2876 | static int wan_write(char *buf) | |
2877 | { | |
42adb53c | 2878 | char *cmd; |
42adb53c | 2879 | |
d8fd94d9 | 2880 | if (!tp_features.wan) |
42adb53c JF |
2881 | return -ENODEV; |
2882 | ||
2883 | while ((cmd = next_cmd(&buf))) { | |
2884 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2885 | wan_set_radiosw(1); |
42adb53c | 2886 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2887 | wan_set_radiosw(0); |
42adb53c JF |
2888 | } else |
2889 | return -EINVAL; | |
42adb53c JF |
2890 | } |
2891 | ||
42adb53c JF |
2892 | return 0; |
2893 | } | |
2894 | ||
a5763f22 HMH |
2895 | static struct ibm_struct wan_driver_data = { |
2896 | .name = "wan", | |
2897 | .read = wan_read, | |
2898 | .write = wan_write, | |
d3a6ade4 | 2899 | .exit = wan_exit, |
92641177 | 2900 | .flags.experimental = 1, |
a5763f22 HMH |
2901 | }; |
2902 | ||
56b6aeb0 HMH |
2903 | /************************************************************************* |
2904 | * Video subdriver | |
2905 | */ | |
2906 | ||
d7c1d17d HMH |
2907 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
2908 | ||
f74a27d4 HMH |
2909 | enum video_access_mode { |
2910 | TPACPI_VIDEO_NONE = 0, | |
2911 | TPACPI_VIDEO_570, /* 570 */ | |
2912 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2913 | TPACPI_VIDEO_NEW, /* all others */ | |
2914 | }; | |
2915 | ||
2916 | enum { /* video status flags, based on VIDEO_570 */ | |
2917 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2918 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2919 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2920 | }; | |
2921 | ||
2922 | enum { /* TPACPI_VIDEO_570 constants */ | |
2923 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2924 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2925 | * video_status_flags */ | |
2926 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2927 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2928 | }; | |
2929 | ||
9a8e1738 HMH |
2930 | static enum video_access_mode video_supported; |
2931 | static int video_orig_autosw; | |
78f81cc4 | 2932 | |
f74a27d4 HMH |
2933 | static int video_autosw_get(void); |
2934 | static int video_autosw_set(int enable); | |
2935 | ||
e0c7dfe7 | 2936 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2937 | |
a5763f22 | 2938 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2939 | { |
78f81cc4 BD |
2940 | int ivga; |
2941 | ||
fe08bc4b HMH |
2942 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2943 | ||
e0c7dfe7 HMH |
2944 | TPACPI_ACPIHANDLE_INIT(vid); |
2945 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2946 | |
78f81cc4 BD |
2947 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2948 | /* G41, assume IVGA doesn't change */ | |
2949 | vid_handle = vid2_handle; | |
2950 | ||
2951 | if (!vid_handle) | |
2952 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2953 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2954 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2955 | /* 570 */ | |
efa27145 | 2956 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2957 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2958 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2959 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2960 | else |
2961 | /* all others */ | |
efa27145 | 2962 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2963 | |
fe08bc4b HMH |
2964 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2965 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2966 | video_supported); | |
2967 | ||
5fba344c | 2968 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2969 | } |
2970 | ||
56b6aeb0 HMH |
2971 | static void video_exit(void) |
2972 | { | |
83f34724 HMH |
2973 | dbg_printk(TPACPI_DBG_EXIT, |
2974 | "restoring original video autoswitch mode\n"); | |
2975 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2976 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2977 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2978 | } |
2979 | ||
83f34724 | 2980 | static int video_outputsw_get(void) |
1da177e4 LT |
2981 | { |
2982 | int status = 0; | |
2983 | int i; | |
2984 | ||
83f34724 HMH |
2985 | switch (video_supported) { |
2986 | case TPACPI_VIDEO_570: | |
2987 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2988 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2989 | return -EIO; | |
2990 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2991 | break; | |
2992 | case TPACPI_VIDEO_770: | |
2993 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2994 | return -EIO; | |
2995 | if (i) | |
2996 | status |= TP_ACPI_VIDEO_S_LCD; | |
2997 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2998 | return -EIO; | |
2999 | if (i) | |
3000 | status |= TP_ACPI_VIDEO_S_CRT; | |
3001 | break; | |
3002 | case TPACPI_VIDEO_NEW: | |
3003 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3004 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3005 | return -EIO; | |
3006 | if (i) | |
3007 | status |= TP_ACPI_VIDEO_S_CRT; | |
3008 | ||
3009 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3010 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3011 | return -EIO; | |
3012 | if (i) | |
3013 | status |= TP_ACPI_VIDEO_S_LCD; | |
3014 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3015 | return -EIO; | |
3016 | if (i) | |
3017 | status |= TP_ACPI_VIDEO_S_DVI; | |
3018 | break; | |
3019 | default: | |
3020 | return -ENOSYS; | |
78f81cc4 BD |
3021 | } |
3022 | ||
3023 | return status; | |
3024 | } | |
1da177e4 | 3025 | |
83f34724 | 3026 | static int video_outputsw_set(int status) |
78f81cc4 | 3027 | { |
83f34724 HMH |
3028 | int autosw; |
3029 | int res = 0; | |
3030 | ||
3031 | switch (video_supported) { | |
3032 | case TPACPI_VIDEO_570: | |
3033 | res = acpi_evalf(NULL, NULL, | |
3034 | "\\_SB.PHS2", "vdd", | |
3035 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3036 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3037 | break; | |
3038 | case TPACPI_VIDEO_770: | |
3039 | autosw = video_autosw_get(); | |
3040 | if (autosw < 0) | |
3041 | return autosw; | |
1da177e4 | 3042 | |
83f34724 HMH |
3043 | res = video_autosw_set(1); |
3044 | if (res) | |
3045 | return res; | |
3046 | res = acpi_evalf(vid_handle, NULL, | |
3047 | "ASWT", "vdd", status * 0x100, 0); | |
3048 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3049 | printk(TPACPI_ERR |
3050 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3051 | return -EIO; |
3052 | } | |
3053 | break; | |
3054 | case TPACPI_VIDEO_NEW: | |
3055 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3056 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3057 | break; |
3058 | default: | |
3059 | return -ENOSYS; | |
3060 | } | |
1da177e4 | 3061 | |
83f34724 | 3062 | return (res)? 0 : -EIO; |
1da177e4 LT |
3063 | } |
3064 | ||
83f34724 | 3065 | static int video_autosw_get(void) |
78f81cc4 | 3066 | { |
83f34724 | 3067 | int autosw = 0; |
78f81cc4 | 3068 | |
83f34724 HMH |
3069 | switch (video_supported) { |
3070 | case TPACPI_VIDEO_570: | |
3071 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3072 | return -EIO; | |
3073 | break; | |
3074 | case TPACPI_VIDEO_770: | |
3075 | case TPACPI_VIDEO_NEW: | |
3076 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3077 | return -EIO; | |
3078 | break; | |
3079 | default: | |
3080 | return -ENOSYS; | |
3081 | } | |
78f81cc4 | 3082 | |
83f34724 | 3083 | return autosw & 1; |
78f81cc4 BD |
3084 | } |
3085 | ||
83f34724 | 3086 | static int video_autosw_set(int enable) |
78f81cc4 | 3087 | { |
83f34724 HMH |
3088 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3089 | return -EIO; | |
3090 | return 0; | |
78f81cc4 BD |
3091 | } |
3092 | ||
83f34724 | 3093 | static int video_outputsw_cycle(void) |
78f81cc4 | 3094 | { |
83f34724 HMH |
3095 | int autosw = video_autosw_get(); |
3096 | int res; | |
78f81cc4 | 3097 | |
83f34724 HMH |
3098 | if (autosw < 0) |
3099 | return autosw; | |
78f81cc4 | 3100 | |
83f34724 HMH |
3101 | switch (video_supported) { |
3102 | case TPACPI_VIDEO_570: | |
3103 | res = video_autosw_set(1); | |
3104 | if (res) | |
3105 | return res; | |
3106 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3107 | break; | |
3108 | case TPACPI_VIDEO_770: | |
3109 | case TPACPI_VIDEO_NEW: | |
3110 | res = video_autosw_set(1); | |
3111 | if (res) | |
3112 | return res; | |
3113 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3114 | break; | |
3115 | default: | |
3116 | return -ENOSYS; | |
3117 | } | |
3118 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3119 | printk(TPACPI_ERR |
3120 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3121 | return -EIO; |
78f81cc4 BD |
3122 | } |
3123 | ||
83f34724 HMH |
3124 | return (res)? 0 : -EIO; |
3125 | } | |
3126 | ||
3127 | static int video_expand_toggle(void) | |
3128 | { | |
3129 | switch (video_supported) { | |
3130 | case TPACPI_VIDEO_570: | |
3131 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3132 | 0 : -EIO; | |
3133 | case TPACPI_VIDEO_770: | |
3134 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3135 | 0 : -EIO; | |
3136 | case TPACPI_VIDEO_NEW: | |
3137 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3138 | 0 : -EIO; | |
3139 | default: | |
3140 | return -ENOSYS; | |
3141 | } | |
3142 | /* not reached */ | |
78f81cc4 BD |
3143 | } |
3144 | ||
56b6aeb0 HMH |
3145 | static int video_read(char *p) |
3146 | { | |
83f34724 | 3147 | int status, autosw; |
56b6aeb0 HMH |
3148 | int len = 0; |
3149 | ||
83f34724 | 3150 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3151 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3152 | return len; | |
3153 | } | |
3154 | ||
83f34724 HMH |
3155 | status = video_outputsw_get(); |
3156 | if (status < 0) | |
3157 | return status; | |
3158 | ||
3159 | autosw = video_autosw_get(); | |
3160 | if (autosw < 0) | |
3161 | return autosw; | |
3162 | ||
56b6aeb0 HMH |
3163 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3164 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3165 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3166 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3167 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3168 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3169 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3170 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3171 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3172 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3173 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3174 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3175 | ||
3176 | return len; | |
3177 | } | |
3178 | ||
78f81cc4 | 3179 | static int video_write(char *buf) |
1da177e4 LT |
3180 | { |
3181 | char *cmd; | |
3182 | int enable, disable, status; | |
83f34724 | 3183 | int res; |
1da177e4 | 3184 | |
83f34724 | 3185 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3186 | return -ENODEV; |
3187 | ||
83f34724 HMH |
3188 | enable = 0; |
3189 | disable = 0; | |
1da177e4 LT |
3190 | |
3191 | while ((cmd = next_cmd(&buf))) { | |
3192 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3193 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3194 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3195 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3196 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3197 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3198 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3199 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3200 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3201 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3202 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3203 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3204 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3205 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3206 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3207 | res = video_autosw_set(1); |
3208 | if (res) | |
3209 | return res; | |
1da177e4 | 3210 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3211 | res = video_autosw_set(0); |
3212 | if (res) | |
3213 | return res; | |
1da177e4 | 3214 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3215 | res = video_outputsw_cycle(); |
3216 | if (res) | |
3217 | return res; | |
1da177e4 | 3218 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3219 | res = video_expand_toggle(); |
3220 | if (res) | |
3221 | return res; | |
1da177e4 LT |
3222 | } else |
3223 | return -EINVAL; | |
3224 | } | |
3225 | ||
3226 | if (enable || disable) { | |
83f34724 HMH |
3227 | status = video_outputsw_get(); |
3228 | if (status < 0) | |
3229 | return status; | |
3230 | res = video_outputsw_set((status & ~disable) | enable); | |
3231 | if (res) | |
3232 | return res; | |
1da177e4 LT |
3233 | } |
3234 | ||
3235 | return 0; | |
3236 | } | |
3237 | ||
a5763f22 HMH |
3238 | static struct ibm_struct video_driver_data = { |
3239 | .name = "video", | |
3240 | .read = video_read, | |
3241 | .write = video_write, | |
3242 | .exit = video_exit, | |
3243 | }; | |
3244 | ||
d7c1d17d HMH |
3245 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3246 | ||
56b6aeb0 HMH |
3247 | /************************************************************************* |
3248 | * Light (thinklight) subdriver | |
3249 | */ | |
1da177e4 | 3250 | |
e0c7dfe7 HMH |
3251 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3252 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3253 | |
4fa6811b HMH |
3254 | static int light_get_status(void) |
3255 | { | |
3256 | int status = 0; | |
3257 | ||
3258 | if (tp_features.light_status) { | |
3259 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
3260 | return -EIO; | |
3261 | return (!!status); | |
3262 | } | |
3263 | ||
3264 | return -ENXIO; | |
3265 | } | |
3266 | ||
3267 | static int light_set_status(int status) | |
3268 | { | |
3269 | int rc; | |
3270 | ||
3271 | if (tp_features.light) { | |
3272 | if (cmos_handle) { | |
3273 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
3274 | (status)? | |
3275 | TP_CMOS_THINKLIGHT_ON : | |
3276 | TP_CMOS_THINKLIGHT_OFF); | |
3277 | } else { | |
3278 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
3279 | (status)? 1 : 0); | |
3280 | } | |
3281 | return (rc)? 0 : -EIO; | |
3282 | } | |
3283 | ||
3284 | return -ENXIO; | |
3285 | } | |
3286 | ||
e306501d HMH |
3287 | static void light_set_status_worker(struct work_struct *work) |
3288 | { | |
3289 | struct tpacpi_led_classdev *data = | |
3290 | container_of(work, struct tpacpi_led_classdev, work); | |
3291 | ||
3292 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
3293 | light_set_status((data->new_brightness != LED_OFF)); | |
3294 | } | |
3295 | ||
3296 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
3297 | enum led_brightness brightness) | |
3298 | { | |
3299 | struct tpacpi_led_classdev *data = | |
3300 | container_of(led_cdev, | |
3301 | struct tpacpi_led_classdev, | |
3302 | led_classdev); | |
3303 | data->new_brightness = brightness; | |
e0e3c061 | 3304 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
3305 | } |
3306 | ||
3307 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
3308 | { | |
3309 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
3310 | } | |
3311 | ||
3312 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
3313 | .led_classdev = { | |
3314 | .name = "tpacpi::thinklight", | |
3315 | .brightness_set = &light_sysfs_set, | |
3316 | .brightness_get = &light_sysfs_get, | |
3317 | } | |
3318 | }; | |
3319 | ||
a5763f22 | 3320 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3321 | { |
e306501d HMH |
3322 | int rc = 0; |
3323 | ||
fe08bc4b HMH |
3324 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3325 | ||
e0c7dfe7 HMH |
3326 | TPACPI_ACPIHANDLE_INIT(ledb); |
3327 | TPACPI_ACPIHANDLE_INIT(lght); | |
3328 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 3329 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 3330 | |
78f81cc4 | 3331 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3332 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3333 | |
d8fd94d9 | 3334 | if (tp_features.light) |
78f81cc4 BD |
3335 | /* light status not supported on |
3336 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3337 | tp_features.light_status = |
3338 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3339 | |
fe08bc4b | 3340 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 3341 | str_supported(tp_features.light)); |
fe08bc4b | 3342 | |
e306501d HMH |
3343 | if (tp_features.light) { |
3344 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
3345 | &tpacpi_led_thinklight.led_classdev); | |
3346 | } | |
3347 | ||
3348 | if (rc < 0) { | |
3349 | tp_features.light = 0; | |
3350 | tp_features.light_status = 0; | |
3351 | } else { | |
3352 | rc = (tp_features.light)? 0 : 1; | |
3353 | } | |
3354 | return rc; | |
3355 | } | |
3356 | ||
3357 | static void light_exit(void) | |
3358 | { | |
3359 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
3360 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 3361 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
3362 | } |
3363 | ||
78f81cc4 | 3364 | static int light_read(char *p) |
1da177e4 LT |
3365 | { |
3366 | int len = 0; | |
4fa6811b | 3367 | int status; |
1da177e4 | 3368 | |
d8fd94d9 | 3369 | if (!tp_features.light) { |
78f81cc4 | 3370 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3371 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3372 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3373 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3374 | } else { | |
4fa6811b HMH |
3375 | status = light_get_status(); |
3376 | if (status < 0) | |
3377 | return status; | |
1da177e4 | 3378 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
3379 | len += sprintf(p + len, "commands:\ton, off\n"); |
3380 | } | |
1da177e4 LT |
3381 | |
3382 | return len; | |
3383 | } | |
3384 | ||
78f81cc4 | 3385 | static int light_write(char *buf) |
1da177e4 | 3386 | { |
1da177e4 | 3387 | char *cmd; |
4fa6811b | 3388 | int newstatus = 0; |
78f81cc4 | 3389 | |
d8fd94d9 | 3390 | if (!tp_features.light) |
78f81cc4 BD |
3391 | return -ENODEV; |
3392 | ||
1da177e4 LT |
3393 | while ((cmd = next_cmd(&buf))) { |
3394 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 3395 | newstatus = 1; |
1da177e4 | 3396 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 3397 | newstatus = 0; |
1da177e4 LT |
3398 | } else |
3399 | return -EINVAL; | |
1da177e4 LT |
3400 | } |
3401 | ||
4fa6811b | 3402 | return light_set_status(newstatus); |
1da177e4 LT |
3403 | } |
3404 | ||
a5763f22 HMH |
3405 | static struct ibm_struct light_driver_data = { |
3406 | .name = "light", | |
3407 | .read = light_read, | |
3408 | .write = light_write, | |
e306501d | 3409 | .exit = light_exit, |
a5763f22 HMH |
3410 | }; |
3411 | ||
56b6aeb0 HMH |
3412 | /************************************************************************* |
3413 | * Dock subdriver | |
3414 | */ | |
1da177e4 | 3415 | |
85998248 | 3416 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3417 | |
f74a27d4 HMH |
3418 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3419 | static int dock_read(char *p); | |
3420 | static int dock_write(char *buf); | |
3421 | ||
e0c7dfe7 | 3422 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3423 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3424 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3425 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3426 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3427 | ||
5fba344c | 3428 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3429 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3430 | |
1ba90e3a TR |
3431 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3432 | {PCI_ROOT_HID_STRING, 0}, | |
3433 | {"", 0}, | |
3434 | }; | |
3435 | ||
d94a7f16 HMH |
3436 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3437 | { | |
3438 | .notify = dock_notify, | |
3439 | .handle = &dock_handle, | |
3440 | .type = ACPI_SYSTEM_NOTIFY, | |
3441 | }, | |
3442 | { | |
996fba08 HMH |
3443 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3444 | * We just use it to get notifications of dock hotplug | |
3445 | * in very old thinkpads */ | |
1ba90e3a | 3446 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3447 | .notify = dock_notify, |
3448 | .handle = &pci_handle, | |
3449 | .type = ACPI_SYSTEM_NOTIFY, | |
3450 | }, | |
3451 | }; | |
3452 | ||
3453 | static struct ibm_struct dock_driver_data[2] = { | |
3454 | { | |
3455 | .name = "dock", | |
3456 | .read = dock_read, | |
3457 | .write = dock_write, | |
3458 | .acpi = &ibm_dock_acpidriver[0], | |
3459 | }, | |
3460 | { | |
3461 | .name = "dock", | |
3462 | .acpi = &ibm_dock_acpidriver[1], | |
3463 | }, | |
3464 | }; | |
3465 | ||
1da177e4 LT |
3466 | #define dock_docked() (_sta(dock_handle) & 1) |
3467 | ||
a5763f22 | 3468 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3469 | { |
fe08bc4b HMH |
3470 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3471 | ||
e0c7dfe7 | 3472 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3473 | |
fe08bc4b HMH |
3474 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3475 | str_supported(dock_handle != NULL)); | |
3476 | ||
5fba344c HMH |
3477 | return (dock_handle)? 0 : 1; |
3478 | } | |
3479 | ||
d94a7f16 HMH |
3480 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3481 | { | |
3482 | int dock2_needed; | |
3483 | ||
3484 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3485 | ||
3486 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3487 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3488 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3489 | dock2_needed = (pci_handle != NULL); |
3490 | vdbg_printk(TPACPI_DBG_INIT, | |
3491 | "dock PCI handler for the TP 570 is %s\n", | |
3492 | str_supported(dock2_needed)); | |
3493 | } else { | |
3494 | vdbg_printk(TPACPI_DBG_INIT, | |
3495 | "dock subdriver part 2 not required\n"); | |
3496 | dock2_needed = 0; | |
3497 | } | |
3498 | ||
3499 | return (dock2_needed)? 0 : 1; | |
3500 | } | |
3501 | ||
56b6aeb0 HMH |
3502 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3503 | { | |
3504 | int docked = dock_docked(); | |
1ba90e3a TR |
3505 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3506 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3507 | int data; |
56b6aeb0 HMH |
3508 | |
3509 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3510 | data = 1; /* button */ |
56b6aeb0 | 3511 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3512 | data = 3; /* dock */ |
56b6aeb0 | 3513 | else if (event == 3 && docked) |
962ce8ca | 3514 | data = 1; /* button */ |
56b6aeb0 | 3515 | else if (event == 3 && !docked) |
962ce8ca | 3516 | data = 2; /* undock */ |
56b6aeb0 | 3517 | else if (event == 0 && docked) |
962ce8ca | 3518 | data = 3; /* dock */ |
56b6aeb0 | 3519 | else { |
e0c7dfe7 | 3520 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3521 | event, _sta(dock_handle)); |
962ce8ca | 3522 | data = 0; /* unknown */ |
56b6aeb0 | 3523 | } |
14e04fb3 | 3524 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3525 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3526 | ibm->acpi->device->dev.bus_id, | |
3527 | event, data); | |
56b6aeb0 HMH |
3528 | } |
3529 | ||
78f81cc4 | 3530 | static int dock_read(char *p) |
1da177e4 LT |
3531 | { |
3532 | int len = 0; | |
3533 | int docked = dock_docked(); | |
3534 | ||
3535 | if (!dock_handle) | |
3536 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3537 | else if (!docked) | |
3538 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3539 | else { | |
3540 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3541 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3542 | } | |
3543 | ||
3544 | return len; | |
3545 | } | |
3546 | ||
78f81cc4 | 3547 | static int dock_write(char *buf) |
1da177e4 LT |
3548 | { |
3549 | char *cmd; | |
3550 | ||
3551 | if (!dock_docked()) | |
78f81cc4 | 3552 | return -ENODEV; |
1da177e4 LT |
3553 | |
3554 | while ((cmd = next_cmd(&buf))) { | |
3555 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3556 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3557 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3558 | return -EIO; |
3559 | } else if (strlencmp(cmd, "dock") == 0) { | |
3560 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3561 | return -EIO; | |
3562 | } else | |
3563 | return -EINVAL; | |
1da177e4 | 3564 | } |
56b6aeb0 HMH |
3565 | |
3566 | return 0; | |
1da177e4 | 3567 | } |
56b6aeb0 | 3568 | |
85998248 | 3569 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3570 | |
3571 | /************************************************************************* | |
3572 | * Bay subdriver | |
3573 | */ | |
1da177e4 | 3574 | |
85998248 | 3575 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3576 | |
e0c7dfe7 | 3577 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3578 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3579 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3580 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3581 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3582 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3583 | "_EJ0", /* all others */ |
3584 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3585 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3586 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3587 | ); /* all others */ | |
e0c7dfe7 | 3588 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3589 | "_EJ0", /* 770x */ |
3590 | ); /* all others */ | |
3591 | ||
a5763f22 | 3592 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3593 | { |
fe08bc4b HMH |
3594 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3595 | ||
e0c7dfe7 | 3596 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3597 | if (bay_handle) |
e0c7dfe7 HMH |
3598 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3599 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3600 | if (bay2_handle) |
e0c7dfe7 | 3601 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3602 | |
d8fd94d9 HMH |
3603 | tp_features.bay_status = bay_handle && |
3604 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3605 | tp_features.bay_status2 = bay2_handle && | |
3606 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3607 | |
d8fd94d9 HMH |
3608 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3609 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3610 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3611 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3612 | |
fe08bc4b HMH |
3613 | vdbg_printk(TPACPI_DBG_INIT, |
3614 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3615 | str_supported(tp_features.bay_status), |
3616 | str_supported(tp_features.bay_eject), | |
3617 | str_supported(tp_features.bay_status2), | |
3618 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3619 | |
d8fd94d9 HMH |
3620 | return (tp_features.bay_status || tp_features.bay_eject || |
3621 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3622 | } |
3623 | ||
56b6aeb0 HMH |
3624 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3625 | { | |
14e04fb3 | 3626 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3627 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3628 | ibm->acpi->device->dev.bus_id, | |
3629 | event, 0); | |
56b6aeb0 HMH |
3630 | } |
3631 | ||
78f81cc4 BD |
3632 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3633 | ||
3634 | static int bay_read(char *p) | |
1da177e4 LT |
3635 | { |
3636 | int len = 0; | |
78f81cc4 BD |
3637 | int occupied = bay_occupied(bay); |
3638 | int occupied2 = bay_occupied(bay2); | |
3639 | int eject, eject2; | |
3640 | ||
d8fd94d9 HMH |
3641 | len += sprintf(p + len, "status:\t\t%s\n", |
3642 | tp_features.bay_status ? | |
3643 | (occupied ? "occupied" : "unoccupied") : | |
3644 | "not supported"); | |
3645 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3646 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3647 | "occupied" : "unoccupied"); | |
3648 | ||
d8fd94d9 HMH |
3649 | eject = tp_features.bay_eject && occupied; |
3650 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3651 | |
3652 | if (eject && eject2) | |
3653 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3654 | else if (eject) | |
1da177e4 | 3655 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3656 | else if (eject2) |
3657 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3658 | |
3659 | return len; | |
3660 | } | |
3661 | ||
78f81cc4 | 3662 | static int bay_write(char *buf) |
1da177e4 LT |
3663 | { |
3664 | char *cmd; | |
3665 | ||
d8fd94d9 | 3666 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3667 | return -ENODEV; |
3668 | ||
1da177e4 | 3669 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3670 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3671 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3672 | return -EIO; | |
d8fd94d9 | 3673 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3674 | strlencmp(cmd, "eject2") == 0) { |
3675 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3676 | return -EIO; |
3677 | } else | |
3678 | return -EINVAL; | |
3679 | } | |
3680 | ||
3681 | return 0; | |
78f81cc4 | 3682 | } |
a5763f22 | 3683 | |
8d376cd6 HMH |
3684 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3685 | .notify = bay_notify, | |
3686 | .handle = &bay_handle, | |
3687 | .type = ACPI_SYSTEM_NOTIFY, | |
3688 | }; | |
3689 | ||
a5763f22 HMH |
3690 | static struct ibm_struct bay_driver_data = { |
3691 | .name = "bay", | |
3692 | .read = bay_read, | |
3693 | .write = bay_write, | |
8d376cd6 | 3694 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3695 | }; |
3696 | ||
85998248 | 3697 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3698 | |
56b6aeb0 HMH |
3699 | /************************************************************************* |
3700 | * CMOS subdriver | |
3701 | */ | |
3702 | ||
b616004c HMH |
3703 | /* sysfs cmos_command -------------------------------------------------- */ |
3704 | static ssize_t cmos_command_store(struct device *dev, | |
3705 | struct device_attribute *attr, | |
3706 | const char *buf, size_t count) | |
3707 | { | |
3708 | unsigned long cmos_cmd; | |
3709 | int res; | |
3710 | ||
3711 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3712 | return -EINVAL; | |
3713 | ||
3714 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3715 | return (res)? res : count; | |
3716 | } | |
3717 | ||
3718 | static struct device_attribute dev_attr_cmos_command = | |
3719 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3720 | ||
3721 | /* --------------------------------------------------------------------- */ | |
3722 | ||
a5763f22 | 3723 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3724 | { |
b616004c HMH |
3725 | int res; |
3726 | ||
fe08bc4b HMH |
3727 | vdbg_printk(TPACPI_DBG_INIT, |
3728 | "initializing cmos commands subdriver\n"); | |
3729 | ||
e0c7dfe7 | 3730 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3731 | |
fe08bc4b HMH |
3732 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3733 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3734 | |
3735 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3736 | if (res) | |
3737 | return res; | |
3738 | ||
5fba344c HMH |
3739 | return (cmos_handle)? 0 : 1; |
3740 | } | |
3741 | ||
b616004c HMH |
3742 | static void cmos_exit(void) |
3743 | { | |
3744 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3745 | } | |
3746 | ||
78f81cc4 | 3747 | static int cmos_read(char *p) |
1da177e4 LT |
3748 | { |
3749 | int len = 0; | |
3750 | ||
78f81cc4 BD |
3751 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3752 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3753 | if (!cmos_handle) |
3754 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3755 | else { | |
3756 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3757 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3758 | } |
3759 | ||
3760 | return len; | |
3761 | } | |
3762 | ||
78f81cc4 | 3763 | static int cmos_write(char *buf) |
1da177e4 LT |
3764 | { |
3765 | char *cmd; | |
c9bea99c | 3766 | int cmos_cmd, res; |
1da177e4 LT |
3767 | |
3768 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3769 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3770 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3771 | /* cmos_cmd set */ |
3772 | } else | |
3773 | return -EINVAL; | |
3774 | ||
c9bea99c HMH |
3775 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3776 | if (res) | |
3777 | return res; | |
1da177e4 LT |
3778 | } |
3779 | ||
3780 | return 0; | |
78f81cc4 BD |
3781 | } |
3782 | ||
a5763f22 HMH |
3783 | static struct ibm_struct cmos_driver_data = { |
3784 | .name = "cmos", | |
3785 | .read = cmos_read, | |
3786 | .write = cmos_write, | |
b616004c | 3787 | .exit = cmos_exit, |
a5763f22 | 3788 | }; |
56b6aeb0 HMH |
3789 | |
3790 | /************************************************************************* | |
3791 | * LED subdriver | |
3792 | */ | |
3793 | ||
f74a27d4 HMH |
3794 | enum led_access_mode { |
3795 | TPACPI_LED_NONE = 0, | |
3796 | TPACPI_LED_570, /* 570 */ | |
3797 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3798 | TPACPI_LED_NEW, /* all others */ | |
3799 | }; | |
3800 | ||
3801 | enum { /* For TPACPI_LED_OLD */ | |
3802 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3803 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3804 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3805 | }; | |
3806 | ||
4fa6811b HMH |
3807 | enum led_status_t { |
3808 | TPACPI_LED_OFF = 0, | |
3809 | TPACPI_LED_ON, | |
3810 | TPACPI_LED_BLINK, | |
3811 | }; | |
3812 | ||
9a8e1738 | 3813 | static enum led_access_mode led_supported; |
78f81cc4 | 3814 | |
e0c7dfe7 | 3815 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
3816 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
3817 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
3818 | "LED", /* all others */ |
3819 | ); /* R30, R31 */ | |
3820 | ||
af116101 HMH |
3821 | #define TPACPI_LED_NUMLEDS 8 |
3822 | static struct tpacpi_led_classdev *tpacpi_leds; | |
3823 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
3824 | static const char const *tpacpi_led_names[TPACPI_LED_NUMLEDS] = { | |
3825 | /* there's a limit of 19 chars + NULL before 2.6.26 */ | |
3826 | "tpacpi::power", | |
3827 | "tpacpi:orange:batt", | |
3828 | "tpacpi:green:batt", | |
3829 | "tpacpi::dock_active", | |
3830 | "tpacpi::bay_active", | |
3831 | "tpacpi::dock_batt", | |
3832 | "tpacpi::unknown_led", | |
3833 | "tpacpi::standby", | |
3834 | }; | |
3835 | ||
4fa6811b HMH |
3836 | static int led_get_status(unsigned int led) |
3837 | { | |
3838 | int status; | |
af116101 | 3839 | enum led_status_t led_s; |
4fa6811b HMH |
3840 | |
3841 | switch (led_supported) { | |
3842 | case TPACPI_LED_570: | |
3843 | if (!acpi_evalf(ec_handle, | |
3844 | &status, "GLED", "dd", 1 << led)) | |
3845 | return -EIO; | |
af116101 | 3846 | led_s = (status == 0)? |
4fa6811b HMH |
3847 | TPACPI_LED_OFF : |
3848 | ((status == 1)? | |
3849 | TPACPI_LED_ON : | |
3850 | TPACPI_LED_BLINK); | |
af116101 HMH |
3851 | tpacpi_led_state_cache[led] = led_s; |
3852 | return led_s; | |
4fa6811b HMH |
3853 | default: |
3854 | return -ENXIO; | |
3855 | } | |
3856 | ||
3857 | /* not reached */ | |
3858 | } | |
3859 | ||
3860 | static int led_set_status(unsigned int led, enum led_status_t ledstatus) | |
3861 | { | |
3862 | /* off, on, blink. Index is led_status_t */ | |
3863 | static const int const led_sled_arg1[] = { 0, 1, 3 }; | |
3864 | static const int const led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3865 | static const int const led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3866 | static const int const led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3867 | ||
3868 | int rc = 0; | |
3869 | ||
3870 | switch (led_supported) { | |
3871 | case TPACPI_LED_570: | |
3872 | /* 570 */ | |
3873 | led = 1 << led; | |
3874 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3875 | led, led_sled_arg1[ledstatus])) | |
3876 | rc = -EIO; | |
3877 | break; | |
3878 | case TPACPI_LED_OLD: | |
3879 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ | |
3880 | led = 1 << led; | |
3881 | rc = ec_write(TPACPI_LED_EC_HLMS, led); | |
3882 | if (rc >= 0) | |
3883 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
3884 | led * led_exp_hlbl[ledstatus]); | |
3885 | if (rc >= 0) | |
3886 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
10cc9275 | 3887 | led * led_exp_hlcl[ledstatus]); |
4fa6811b HMH |
3888 | break; |
3889 | case TPACPI_LED_NEW: | |
3890 | /* all others */ | |
3891 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3892 | led, led_led_arg1[ledstatus])) | |
3893 | rc = -EIO; | |
3894 | break; | |
3895 | default: | |
3896 | rc = -ENXIO; | |
3897 | } | |
3898 | ||
af116101 HMH |
3899 | if (!rc) |
3900 | tpacpi_led_state_cache[led] = ledstatus; | |
3901 | ||
3902 | return rc; | |
3903 | } | |
3904 | ||
3905 | static void led_sysfs_set_status(unsigned int led, | |
3906 | enum led_brightness brightness) | |
3907 | { | |
3908 | led_set_status(led, | |
3909 | (brightness == LED_OFF) ? | |
3910 | TPACPI_LED_OFF : | |
3911 | (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ? | |
3912 | TPACPI_LED_BLINK : TPACPI_LED_ON); | |
3913 | } | |
3914 | ||
3915 | static void led_set_status_worker(struct work_struct *work) | |
3916 | { | |
3917 | struct tpacpi_led_classdev *data = | |
3918 | container_of(work, struct tpacpi_led_classdev, work); | |
3919 | ||
3920 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
3921 | led_sysfs_set_status(data->led, data->new_brightness); | |
3922 | } | |
3923 | ||
3924 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
3925 | enum led_brightness brightness) | |
3926 | { | |
3927 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
3928 | struct tpacpi_led_classdev, led_classdev); | |
3929 | ||
3930 | data->new_brightness = brightness; | |
e0e3c061 | 3931 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
3932 | } |
3933 | ||
3934 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
3935 | unsigned long *delay_on, unsigned long *delay_off) | |
3936 | { | |
3937 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
3938 | struct tpacpi_led_classdev, led_classdev); | |
3939 | ||
3940 | /* Can we choose the flash rate? */ | |
3941 | if (*delay_on == 0 && *delay_off == 0) { | |
3942 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
3943 | *delay_on = 500; /* ms */ | |
3944 | *delay_off = 500; /* ms */ | |
3945 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
3946 | return -EINVAL; | |
3947 | ||
3948 | data->new_brightness = TPACPI_LED_BLINK; | |
e0e3c061 | 3949 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
3950 | |
3951 | return 0; | |
3952 | } | |
3953 | ||
3954 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
3955 | { | |
3956 | int rc; | |
3957 | ||
3958 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
3959 | struct tpacpi_led_classdev, led_classdev); | |
3960 | ||
3961 | rc = led_get_status(data->led); | |
3962 | ||
3963 | if (rc == TPACPI_LED_OFF || rc < 0) | |
3964 | rc = LED_OFF; /* no error handling in led class :( */ | |
3965 | else | |
3966 | rc = LED_FULL; | |
3967 | ||
4fa6811b HMH |
3968 | return rc; |
3969 | } | |
3970 | ||
af116101 HMH |
3971 | static void led_exit(void) |
3972 | { | |
3973 | unsigned int i; | |
3974 | ||
3975 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
3976 | if (tpacpi_leds[i].led_classdev.name) | |
3977 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
3978 | } | |
3979 | ||
3980 | kfree(tpacpi_leds); | |
3981 | tpacpi_leds = NULL; | |
3982 | } | |
3983 | ||
a5763f22 | 3984 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3985 | { |
af116101 HMH |
3986 | unsigned int i; |
3987 | int rc; | |
3988 | ||
fe08bc4b HMH |
3989 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3990 | ||
e0c7dfe7 | 3991 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3992 | |
78f81cc4 BD |
3993 | if (!led_handle) |
3994 | /* led not supported on R30, R31 */ | |
efa27145 | 3995 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3996 | else if (strlencmp(led_path, "SLED") == 0) |
3997 | /* 570 */ | |
efa27145 | 3998 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3999 | else if (strlencmp(led_path, "SYSL") == 0) |
4000 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 4001 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
4002 | else |
4003 | /* all others */ | |
efa27145 | 4004 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 4005 | |
fe08bc4b HMH |
4006 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
4007 | str_supported(led_supported), led_supported); | |
4008 | ||
af116101 HMH |
4009 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
4010 | GFP_KERNEL); | |
4011 | if (!tpacpi_leds) { | |
4012 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
4013 | return -ENOMEM; | |
4014 | } | |
4015 | ||
4016 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4017 | tpacpi_leds[i].led = i; | |
4018 | ||
4019 | tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set; | |
4020 | tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set; | |
4021 | if (led_supported == TPACPI_LED_570) | |
4022 | tpacpi_leds[i].led_classdev.brightness_get = | |
4023 | &led_sysfs_get; | |
4024 | ||
4025 | tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i]; | |
4026 | ||
4027 | INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker); | |
4028 | ||
4029 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4030 | &tpacpi_leds[i].led_classdev); | |
4031 | if (rc < 0) { | |
4032 | tpacpi_leds[i].led_classdev.name = NULL; | |
4033 | led_exit(); | |
4034 | return rc; | |
4035 | } | |
4036 | } | |
4037 | ||
5fba344c | 4038 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
4039 | } |
4040 | ||
4fa6811b HMH |
4041 | #define str_led_status(s) \ |
4042 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
4043 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
4044 | |
4045 | static int led_read(char *p) | |
1da177e4 LT |
4046 | { |
4047 | int len = 0; | |
4048 | ||
78f81cc4 BD |
4049 | if (!led_supported) { |
4050 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4051 | return len; | |
4052 | } | |
4053 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4054 | ||
efa27145 | 4055 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
4056 | /* 570 */ |
4057 | int i, status; | |
4058 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
4059 | status = led_get_status(i); |
4060 | if (status < 0) | |
78f81cc4 BD |
4061 | return -EIO; |
4062 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 4063 | i, str_led_status(status)); |
78f81cc4 BD |
4064 | } |
4065 | } | |
4066 | ||
1da177e4 | 4067 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 4068 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
4069 | |
4070 | return len; | |
4071 | } | |
4072 | ||
78f81cc4 | 4073 | static int led_write(char *buf) |
1da177e4 LT |
4074 | { |
4075 | char *cmd; | |
4fa6811b HMH |
4076 | int led, rc; |
4077 | enum led_status_t s; | |
78f81cc4 BD |
4078 | |
4079 | if (!led_supported) | |
4080 | return -ENODEV; | |
1da177e4 LT |
4081 | |
4082 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 4083 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
4084 | return -EINVAL; |
4085 | ||
78f81cc4 | 4086 | if (strstr(cmd, "off")) { |
4fa6811b | 4087 | s = TPACPI_LED_OFF; |
1da177e4 | 4088 | } else if (strstr(cmd, "on")) { |
4fa6811b | 4089 | s = TPACPI_LED_ON; |
78f81cc4 | 4090 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 4091 | s = TPACPI_LED_BLINK; |
78f81cc4 | 4092 | } else { |
4fa6811b | 4093 | return -EINVAL; |
78f81cc4 | 4094 | } |
4fa6811b HMH |
4095 | |
4096 | rc = led_set_status(led, s); | |
4097 | if (rc < 0) | |
4098 | return rc; | |
78f81cc4 BD |
4099 | } |
4100 | ||
4101 | return 0; | |
4102 | } | |
4103 | ||
a5763f22 HMH |
4104 | static struct ibm_struct led_driver_data = { |
4105 | .name = "led", | |
4106 | .read = led_read, | |
4107 | .write = led_write, | |
af116101 | 4108 | .exit = led_exit, |
a5763f22 HMH |
4109 | }; |
4110 | ||
56b6aeb0 HMH |
4111 | /************************************************************************* |
4112 | * Beep subdriver | |
4113 | */ | |
4114 | ||
e0c7dfe7 | 4115 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 4116 | |
a5763f22 | 4117 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 4118 | { |
fe08bc4b HMH |
4119 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
4120 | ||
e0c7dfe7 | 4121 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 4122 | |
fe08bc4b HMH |
4123 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
4124 | str_supported(beep_handle != NULL)); | |
4125 | ||
5fba344c HMH |
4126 | return (beep_handle)? 0 : 1; |
4127 | } | |
4128 | ||
78f81cc4 BD |
4129 | static int beep_read(char *p) |
4130 | { | |
4131 | int len = 0; | |
4132 | ||
4133 | if (!beep_handle) | |
4134 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4135 | else { | |
4136 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4137 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
4138 | } | |
4139 | ||
4140 | return len; | |
4141 | } | |
4142 | ||
4143 | static int beep_write(char *buf) | |
4144 | { | |
4145 | char *cmd; | |
4146 | int beep_cmd; | |
4147 | ||
4148 | if (!beep_handle) | |
4149 | return -ENODEV; | |
4150 | ||
4151 | while ((cmd = next_cmd(&buf))) { | |
4152 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
4153 | beep_cmd >= 0 && beep_cmd <= 17) { | |
4154 | /* beep_cmd set */ | |
4155 | } else | |
4156 | return -EINVAL; | |
4157 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
4158 | return -EIO; | |
4159 | } | |
4160 | ||
4161 | return 0; | |
4162 | } | |
4163 | ||
a5763f22 HMH |
4164 | static struct ibm_struct beep_driver_data = { |
4165 | .name = "beep", | |
4166 | .read = beep_read, | |
4167 | .write = beep_write, | |
4168 | }; | |
4169 | ||
56b6aeb0 HMH |
4170 | /************************************************************************* |
4171 | * Thermal subdriver | |
4172 | */ | |
78f81cc4 | 4173 | |
f74a27d4 HMH |
4174 | enum thermal_access_mode { |
4175 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
4176 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
4177 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
4178 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
4179 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
4180 | }; | |
4181 | ||
4182 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
4183 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
4184 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
4185 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
4186 | }; | |
4187 | ||
4188 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
4189 | struct ibm_thermal_sensors_struct { | |
4190 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
4191 | }; | |
4192 | ||
a26f878a | 4193 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 4194 | |
b21a15f6 HMH |
4195 | /* idx is zero-based */ |
4196 | static int thermal_get_sensor(int idx, s32 *value) | |
4197 | { | |
4198 | int t; | |
4199 | s8 tmp; | |
4200 | char tmpi[5]; | |
4201 | ||
4202 | t = TP_EC_THERMAL_TMP0; | |
4203 | ||
4204 | switch (thermal_read_mode) { | |
4205 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
4206 | case TPACPI_THERMAL_TPEC_16: | |
4207 | if (idx >= 8 && idx <= 15) { | |
4208 | t = TP_EC_THERMAL_TMP8; | |
4209 | idx -= 8; | |
4210 | } | |
4211 | /* fallthrough */ | |
4212 | #endif | |
4213 | case TPACPI_THERMAL_TPEC_8: | |
4214 | if (idx <= 7) { | |
4215 | if (!acpi_ec_read(t + idx, &tmp)) | |
4216 | return -EIO; | |
4217 | *value = tmp * 1000; | |
4218 | return 0; | |
4219 | } | |
4220 | break; | |
4221 | ||
4222 | case TPACPI_THERMAL_ACPI_UPDT: | |
4223 | if (idx <= 7) { | |
4224 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4225 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
4226 | return -EIO; | |
4227 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4228 | return -EIO; | |
4229 | *value = (t - 2732) * 100; | |
4230 | return 0; | |
4231 | } | |
4232 | break; | |
4233 | ||
4234 | case TPACPI_THERMAL_ACPI_TMP07: | |
4235 | if (idx <= 7) { | |
4236 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4237 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4238 | return -EIO; | |
4239 | if (t > 127 || t < -127) | |
4240 | t = TP_EC_THERMAL_TMP_NA; | |
4241 | *value = t * 1000; | |
4242 | return 0; | |
4243 | } | |
4244 | break; | |
4245 | ||
4246 | case TPACPI_THERMAL_NONE: | |
4247 | default: | |
4248 | return -ENOSYS; | |
4249 | } | |
4250 | ||
4251 | return -EINVAL; | |
4252 | } | |
4253 | ||
4254 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
4255 | { | |
4256 | int res, i; | |
4257 | int n; | |
4258 | ||
4259 | n = 8; | |
4260 | i = 0; | |
4261 | ||
4262 | if (!s) | |
4263 | return -EINVAL; | |
4264 | ||
4265 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
4266 | n = 16; | |
4267 | ||
35ff8b9f | 4268 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
4269 | res = thermal_get_sensor(i, &s->temp[i]); |
4270 | if (res) | |
4271 | return res; | |
4272 | } | |
4273 | ||
4274 | return n; | |
4275 | } | |
f74a27d4 | 4276 | |
2c37aa4e HMH |
4277 | /* sysfs temp##_input -------------------------------------------------- */ |
4278 | ||
4279 | static ssize_t thermal_temp_input_show(struct device *dev, | |
4280 | struct device_attribute *attr, | |
4281 | char *buf) | |
4282 | { | |
4283 | struct sensor_device_attribute *sensor_attr = | |
4284 | to_sensor_dev_attr(attr); | |
4285 | int idx = sensor_attr->index; | |
4286 | s32 value; | |
4287 | int res; | |
4288 | ||
4289 | res = thermal_get_sensor(idx, &value); | |
4290 | if (res) | |
4291 | return res; | |
4292 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
4293 | return -ENXIO; | |
4294 | ||
4295 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
4296 | } | |
4297 | ||
4298 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
4299 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
4300 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
4301 | |
4302 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
4303 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
4304 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
4305 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
4306 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
4307 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
4308 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
4309 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
4310 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
4311 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
4312 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
4313 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
4314 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
4315 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
4316 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
4317 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
4318 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
4319 | }; | |
4320 | ||
4321 | #define THERMAL_ATTRS(X) \ | |
4322 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
4323 | ||
4324 | static struct attribute *thermal_temp_input_attr[] = { | |
4325 | THERMAL_ATTRS(8), | |
4326 | THERMAL_ATTRS(9), | |
4327 | THERMAL_ATTRS(10), | |
4328 | THERMAL_ATTRS(11), | |
4329 | THERMAL_ATTRS(12), | |
4330 | THERMAL_ATTRS(13), | |
4331 | THERMAL_ATTRS(14), | |
4332 | THERMAL_ATTRS(15), | |
4333 | THERMAL_ATTRS(0), | |
4334 | THERMAL_ATTRS(1), | |
4335 | THERMAL_ATTRS(2), | |
4336 | THERMAL_ATTRS(3), | |
4337 | THERMAL_ATTRS(4), | |
4338 | THERMAL_ATTRS(5), | |
4339 | THERMAL_ATTRS(6), | |
4340 | THERMAL_ATTRS(7), | |
4341 | NULL | |
4342 | }; | |
4343 | ||
4344 | static const struct attribute_group thermal_temp_input16_group = { | |
4345 | .attrs = thermal_temp_input_attr | |
4346 | }; | |
4347 | ||
4348 | static const struct attribute_group thermal_temp_input8_group = { | |
4349 | .attrs = &thermal_temp_input_attr[8] | |
4350 | }; | |
4351 | ||
4352 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4353 | #undef THERMAL_ATTRS | |
4354 | ||
4355 | /* --------------------------------------------------------------------- */ | |
4356 | ||
a5763f22 | 4357 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4358 | { |
60eb0b35 HMH |
4359 | u8 t, ta1, ta2; |
4360 | int i; | |
5fba344c | 4361 | int acpi_tmp7; |
2c37aa4e | 4362 | int res; |
5fba344c | 4363 | |
fe08bc4b HMH |
4364 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4365 | ||
5fba344c | 4366 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4367 | |
3d6f99ca | 4368 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4369 | /* |
4370 | * Direct EC access mode: sensors at registers | |
4371 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4372 | * non-implemented, thermal sensors return 0x80 when | |
4373 | * not available | |
4374 | */ | |
78f81cc4 | 4375 | |
60eb0b35 HMH |
4376 | ta1 = ta2 = 0; |
4377 | for (i = 0; i < 8; i++) { | |
04cc862c | 4378 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4379 | ta1 |= t; |
4380 | } else { | |
4381 | ta1 = 0; | |
4382 | break; | |
4383 | } | |
04cc862c | 4384 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4385 | ta2 |= t; |
4386 | } else { | |
4387 | ta1 = 0; | |
4388 | break; | |
4389 | } | |
4390 | } | |
4391 | if (ta1 == 0) { | |
4392 | /* This is sheer paranoia, but we handle it anyway */ | |
4393 | if (acpi_tmp7) { | |
e0c7dfe7 | 4394 | printk(TPACPI_ERR |
60eb0b35 | 4395 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
4396 | "falling back to ACPI TMPx access " |
4397 | "mode\n"); | |
efa27145 | 4398 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 4399 | } else { |
e0c7dfe7 | 4400 | printk(TPACPI_ERR |
60eb0b35 HMH |
4401 | "ThinkPad ACPI EC access misbehaving, " |
4402 | "disabling thermal sensors access\n"); | |
efa27145 | 4403 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4404 | } |
4405 | } else { | |
4406 | thermal_read_mode = | |
4407 | (ta2 != 0) ? | |
efa27145 | 4408 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4409 | } |
4410 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4411 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4412 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4413 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4414 | } else { |
4415 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4416 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4417 | } |
4418 | } else { | |
4419 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4420 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4421 | } |
78f81cc4 | 4422 | |
fe08bc4b HMH |
4423 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4424 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4425 | thermal_read_mode); | |
4426 | ||
35ff8b9f | 4427 | switch (thermal_read_mode) { |
2c37aa4e | 4428 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4429 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4430 | &thermal_temp_input16_group); |
4431 | if (res) | |
4432 | return res; | |
4433 | break; | |
4434 | case TPACPI_THERMAL_TPEC_8: | |
4435 | case TPACPI_THERMAL_ACPI_TMP07: | |
4436 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4437 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4438 | &thermal_temp_input8_group); |
4439 | if (res) | |
4440 | return res; | |
4441 | break; | |
4442 | case TPACPI_THERMAL_NONE: | |
4443 | default: | |
4444 | return 1; | |
4445 | } | |
4446 | ||
4447 | return 0; | |
4448 | } | |
4449 | ||
4450 | static void thermal_exit(void) | |
4451 | { | |
35ff8b9f | 4452 | switch (thermal_read_mode) { |
2c37aa4e | 4453 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4454 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4455 | &thermal_temp_input16_group); |
4456 | break; | |
4457 | case TPACPI_THERMAL_TPEC_8: | |
4458 | case TPACPI_THERMAL_ACPI_TMP07: | |
4459 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4460 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4461 | &thermal_temp_input16_group); |
4462 | break; | |
4463 | case TPACPI_THERMAL_NONE: | |
4464 | default: | |
4465 | break; | |
4466 | } | |
78f81cc4 BD |
4467 | } |
4468 | ||
a26f878a HMH |
4469 | static int thermal_read(char *p) |
4470 | { | |
4471 | int len = 0; | |
4472 | int n, i; | |
4473 | struct ibm_thermal_sensors_struct t; | |
4474 | ||
4475 | n = thermal_get_sensors(&t); | |
4476 | if (unlikely(n < 0)) | |
4477 | return n; | |
4478 | ||
4479 | len += sprintf(p + len, "temperatures:\t"); | |
4480 | ||
4481 | if (n > 0) { | |
4482 | for (i = 0; i < (n - 1); i++) | |
4483 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4484 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4485 | } else | |
4486 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4487 | |
4488 | return len; | |
4489 | } | |
4490 | ||
a5763f22 HMH |
4491 | static struct ibm_struct thermal_driver_data = { |
4492 | .name = "thermal", | |
4493 | .read = thermal_read, | |
2c37aa4e | 4494 | .exit = thermal_exit, |
a5763f22 HMH |
4495 | }; |
4496 | ||
56b6aeb0 HMH |
4497 | /************************************************************************* |
4498 | * EC Dump subdriver | |
4499 | */ | |
4500 | ||
78f81cc4 BD |
4501 | static u8 ecdump_regs[256]; |
4502 | ||
4503 | static int ecdump_read(char *p) | |
4504 | { | |
4505 | int len = 0; | |
4506 | int i, j; | |
4507 | u8 v; | |
4508 | ||
4509 | len += sprintf(p + len, "EC " | |
4510 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4511 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4512 | for (i = 0; i < 256; i += 16) { | |
4513 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4514 | for (j = 0; j < 16; j++) { | |
4515 | if (!acpi_ec_read(i + j, &v)) | |
4516 | break; | |
4517 | if (v != ecdump_regs[i + j]) | |
4518 | len += sprintf(p + len, " *%02x", v); | |
4519 | else | |
4520 | len += sprintf(p + len, " %02x", v); | |
4521 | ecdump_regs[i + j] = v; | |
4522 | } | |
4523 | len += sprintf(p + len, "\n"); | |
4524 | if (j != 16) | |
4525 | break; | |
4526 | } | |
4527 | ||
4528 | /* These are way too dangerous to advertise openly... */ | |
4529 | #if 0 | |
4530 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4531 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4532 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4533 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4534 | #endif | |
4535 | return len; | |
4536 | } | |
4537 | ||
4538 | static int ecdump_write(char *buf) | |
4539 | { | |
4540 | char *cmd; | |
4541 | int i, v; | |
4542 | ||
4543 | while ((cmd = next_cmd(&buf))) { | |
4544 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4545 | /* i and v set */ | |
4546 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4547 | /* i and v set */ | |
4548 | } else | |
4549 | return -EINVAL; | |
4550 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4551 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4552 | return -EIO; |
4553 | } else | |
4554 | return -EINVAL; | |
4555 | } | |
4556 | ||
4557 | return 0; | |
78f81cc4 BD |
4558 | } |
4559 | ||
a5763f22 HMH |
4560 | static struct ibm_struct ecdump_driver_data = { |
4561 | .name = "ecdump", | |
4562 | .read = ecdump_read, | |
4563 | .write = ecdump_write, | |
92641177 | 4564 | .flags.experimental = 1, |
a5763f22 HMH |
4565 | }; |
4566 | ||
56b6aeb0 HMH |
4567 | /************************************************************************* |
4568 | * Backlight/brightness subdriver | |
4569 | */ | |
4570 | ||
f74a27d4 HMH |
4571 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4572 | ||
e11aecf1 HMH |
4573 | enum { |
4574 | TP_EC_BACKLIGHT = 0x31, | |
4575 | ||
4576 | /* TP_EC_BACKLIGHT bitmasks */ | |
4577 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
4578 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
4579 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
4580 | }; | |
4581 | ||
94954cc6 | 4582 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4583 | static int brightness_mode; |
4584 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4585 | ||
b21a15f6 | 4586 | static struct mutex brightness_mutex; |
56b6aeb0 | 4587 | |
b21a15f6 HMH |
4588 | /* |
4589 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4590 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
e11aecf1 HMH |
4591 | * |
4592 | * EC 0x31 has the following layout | |
4593 | * Bit 7: unknown function | |
4594 | * Bit 6: unknown function | |
4595 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
4596 | * Bit 4: must be set to zero to avoid problems | |
4597 | * Bit 3-0: backlight brightness level | |
4598 | * | |
4599 | * brightness_get_raw returns status data in the EC 0x31 layout | |
b21a15f6 | 4600 | */ |
e11aecf1 | 4601 | static int brightness_get_raw(int *status) |
b21a15f6 HMH |
4602 | { |
4603 | u8 lec = 0, lcmos = 0, level = 0; | |
4604 | ||
4605 | if (brightness_mode & 1) { | |
e11aecf1 | 4606 | if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) |
b21a15f6 | 4607 | return -EIO; |
e11aecf1 | 4608 | level = lec & TP_EC_BACKLIGHT_LVLMSK; |
b21a15f6 HMH |
4609 | }; |
4610 | if (brightness_mode & 2) { | |
4611 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4612 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4613 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4614 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4615 | level = lcmos; | |
4616 | } | |
4617 | ||
2d5e94d7 | 4618 | if (brightness_mode == 3) { |
e11aecf1 HMH |
4619 | *status = lec; /* Prefer EC, CMOS is just a backing store */ |
4620 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
2d5e94d7 HMH |
4621 | if (lec == lcmos) |
4622 | tp_warned.bright_cmos_ec_unsync = 0; | |
4623 | else { | |
4624 | if (!tp_warned.bright_cmos_ec_unsync) { | |
4625 | printk(TPACPI_ERR | |
4626 | "CMOS NVRAM (%u) and EC (%u) do not " | |
4627 | "agree on display brightness level\n", | |
4628 | (unsigned int) lcmos, | |
4629 | (unsigned int) lec); | |
4630 | tp_warned.bright_cmos_ec_unsync = 1; | |
4631 | } | |
4632 | return -EIO; | |
4633 | } | |
e11aecf1 HMH |
4634 | } else { |
4635 | *status = level; | |
b21a15f6 HMH |
4636 | } |
4637 | ||
e11aecf1 | 4638 | return 0; |
b21a15f6 HMH |
4639 | } |
4640 | ||
4641 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4642 | static int brightness_set(int value) | |
4643 | { | |
4644 | int cmos_cmd, inc, i, res; | |
4645 | int current_value; | |
e11aecf1 | 4646 | int command_bits; |
b21a15f6 | 4647 | |
e11aecf1 HMH |
4648 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
4649 | value < 0) | |
b21a15f6 HMH |
4650 | return -EINVAL; |
4651 | ||
4652 | res = mutex_lock_interruptible(&brightness_mutex); | |
4653 | if (res < 0) | |
4654 | return res; | |
4655 | ||
e11aecf1 HMH |
4656 | res = brightness_get_raw(¤t_value); |
4657 | if (res < 0) | |
b21a15f6 | 4658 | goto errout; |
e11aecf1 HMH |
4659 | |
4660 | command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; | |
4661 | current_value &= TP_EC_BACKLIGHT_LVLMSK; | |
b21a15f6 HMH |
4662 | |
4663 | cmos_cmd = value > current_value ? | |
4664 | TP_CMOS_BRIGHTNESS_UP : | |
4665 | TP_CMOS_BRIGHTNESS_DOWN; | |
4666 | inc = (value > current_value)? 1 : -1; | |
4667 | ||
4668 | res = 0; | |
4669 | for (i = current_value; i != value; i += inc) { | |
4670 | if ((brightness_mode & 2) && | |
4671 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4672 | res = -EIO; | |
4673 | goto errout; | |
4674 | } | |
4675 | if ((brightness_mode & 1) && | |
e11aecf1 HMH |
4676 | !acpi_ec_write(TP_EC_BACKLIGHT, |
4677 | (i + inc) | command_bits)) { | |
b21a15f6 HMH |
4678 | res = -EIO; |
4679 | goto errout;; | |
4680 | } | |
4681 | } | |
4682 | ||
4683 | errout: | |
4684 | mutex_unlock(&brightness_mutex); | |
4685 | return res; | |
4686 | } | |
4687 | ||
4688 | /* sysfs backlight class ----------------------------------------------- */ | |
4689 | ||
4690 | static int brightness_update_status(struct backlight_device *bd) | |
4691 | { | |
4692 | /* it is the backlight class's job (caller) to handle | |
4693 | * EINTR and other errors properly */ | |
4694 | return brightness_set( | |
4695 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4696 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4697 | bd->props.brightness : 0); | |
4698 | } | |
4699 | ||
e11aecf1 HMH |
4700 | static int brightness_get(struct backlight_device *bd) |
4701 | { | |
4702 | int status, res; | |
4703 | ||
4704 | res = brightness_get_raw(&status); | |
4705 | if (res < 0) | |
4706 | return 0; /* FIXME: teach backlight about error handling */ | |
4707 | ||
4708 | return status & TP_EC_BACKLIGHT_LVLMSK; | |
4709 | } | |
4710 | ||
b21a15f6 | 4711 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
4712 | .get_brightness = brightness_get, |
4713 | .update_status = brightness_update_status, | |
56b6aeb0 HMH |
4714 | }; |
4715 | ||
b21a15f6 | 4716 | /* --------------------------------------------------------------------- */ |
f432255e | 4717 | |
a5763f22 | 4718 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4719 | { |
4720 | int b; | |
4721 | ||
fe08bc4b HMH |
4722 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4723 | ||
f432255e HMH |
4724 | mutex_init(&brightness_mutex); |
4725 | ||
b5972796 HMH |
4726 | /* |
4727 | * We always attempt to detect acpi support, so as to switch | |
4728 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
4729 | * going to publish a backlight interface | |
4730 | */ | |
4731 | b = tpacpi_check_std_acpi_brightness_support(); | |
4732 | if (b > 0) { | |
4733 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
4734 | printk(TPACPI_NOTICE | |
4735 | "Lenovo BIOS switched to ACPI backlight " | |
4736 | "control mode\n"); | |
4737 | } | |
4738 | if (brightness_enable > 1) { | |
e0c7dfe7 | 4739 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
4740 | "standard ACPI backlight interface " |
4741 | "available, not loading native one...\n"); | |
e11e211a HMH |
4742 | return 1; |
4743 | } | |
87cc537a HMH |
4744 | } |
4745 | ||
b5972796 HMH |
4746 | if (!brightness_enable) { |
4747 | dbg_printk(TPACPI_DBG_INIT, | |
4748 | "brightness support disabled by " | |
4749 | "module parameter\n"); | |
4750 | return 1; | |
4751 | } | |
4752 | ||
4753 | if (b > 16) { | |
4754 | printk(TPACPI_ERR | |
4755 | "Unsupported brightness interface, " | |
4756 | "please contact %s\n", TPACPI_MAIL); | |
4757 | return 1; | |
4758 | } | |
4759 | if (b == 16) | |
4760 | tp_features.bright_16levels = 1; | |
4761 | ||
24d3b774 HMH |
4762 | if (!brightness_mode) { |
4763 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4764 | brightness_mode = 2; | |
4765 | else | |
4766 | brightness_mode = 3; | |
4767 | ||
4768 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4769 | brightness_mode); | |
4770 | } | |
4771 | ||
4772 | if (brightness_mode > 3) | |
4773 | return -EINVAL; | |
4774 | ||
e11aecf1 | 4775 | if (brightness_get_raw(&b) < 0) |
24d3b774 | 4776 | return 1; |
56b6aeb0 | 4777 | |
a3f104c0 | 4778 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
4779 | printk(TPACPI_INFO |
4780 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 4781 | |
7d5a015e HMH |
4782 | ibm_backlight_device = backlight_device_register( |
4783 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4784 | &ibm_backlight_data); | |
56b6aeb0 | 4785 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4786 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4787 | return PTR_ERR(ibm_backlight_device); |
4788 | } | |
fe08bc4b | 4789 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4790 | |
a3f104c0 HMH |
4791 | ibm_backlight_device->props.max_brightness = |
4792 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 4793 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
4794 | backlight_update_status(ibm_backlight_device); |
4795 | ||
4796 | return 0; | |
4797 | } | |
4798 | ||
4799 | static void brightness_exit(void) | |
4800 | { | |
4801 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4802 | vdbg_printk(TPACPI_DBG_EXIT, |
4803 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4804 | backlight_device_unregister(ibm_backlight_device); |
4805 | ibm_backlight_device = NULL; | |
4806 | } | |
4807 | } | |
4808 | ||
56b6aeb0 HMH |
4809 | static int brightness_read(char *p) |
4810 | { | |
4811 | int len = 0; | |
4812 | int level; | |
4813 | ||
35ff8b9f HMH |
4814 | level = brightness_get(NULL); |
4815 | if (level < 0) { | |
56b6aeb0 HMH |
4816 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
4817 | } else { | |
a3f104c0 | 4818 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4819 | len += sprintf(p + len, "commands:\tup, down\n"); |
4820 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4821 | " (<level> is 0-%d)\n", |
4822 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4823 | } |
4824 | ||
4825 | return len; | |
4826 | } | |
4827 | ||
8acb0250 HM |
4828 | static int brightness_write(char *buf) |
4829 | { | |
4830 | int level; | |
4273af8d | 4831 | int rc; |
1da177e4 | 4832 | char *cmd; |
a3f104c0 | 4833 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4834 | |
4273af8d HMH |
4835 | level = brightness_get(NULL); |
4836 | if (level < 0) | |
4837 | return level; | |
78f81cc4 | 4838 | |
4273af8d | 4839 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4840 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4841 | if (level < max_level) |
4842 | level++; | |
78f81cc4 | 4843 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4844 | if (level > 0) |
4845 | level--; | |
4846 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4847 | level >= 0 && level <= max_level) { | |
4848 | /* new level set */ | |
78f81cc4 BD |
4849 | } else |
4850 | return -EINVAL; | |
78f81cc4 BD |
4851 | } |
4852 | ||
4273af8d HMH |
4853 | /* |
4854 | * Now we know what the final level should be, so we try to set it. | |
4855 | * Doing it this way makes the syscall restartable in case of EINTR | |
4856 | */ | |
4857 | rc = brightness_set(level); | |
4858 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4859 | } |
4860 | ||
a5763f22 HMH |
4861 | static struct ibm_struct brightness_driver_data = { |
4862 | .name = "brightness", | |
4863 | .read = brightness_read, | |
4864 | .write = brightness_write, | |
4865 | .exit = brightness_exit, | |
4866 | }; | |
4867 | ||
56b6aeb0 HMH |
4868 | /************************************************************************* |
4869 | * Volume subdriver | |
4870 | */ | |
fb87a811 | 4871 | |
f74a27d4 HMH |
4872 | static int volume_offset = 0x30; |
4873 | ||
78f81cc4 BD |
4874 | static int volume_read(char *p) |
4875 | { | |
4876 | int len = 0; | |
4877 | u8 level; | |
4878 | ||
4879 | if (!acpi_ec_read(volume_offset, &level)) { | |
4880 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4881 | } else { | |
4882 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4883 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4884 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4885 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4886 | " (<level> is 0-15)\n"); | |
4887 | } | |
4888 | ||
4889 | return len; | |
4890 | } | |
4891 | ||
78f81cc4 BD |
4892 | static int volume_write(char *buf) |
4893 | { | |
4894 | int cmos_cmd, inc, i; | |
4895 | u8 level, mute; | |
4896 | int new_level, new_mute; | |
4897 | char *cmd; | |
4898 | ||
4899 | while ((cmd = next_cmd(&buf))) { | |
4900 | if (!acpi_ec_read(volume_offset, &level)) | |
4901 | return -EIO; | |
4902 | new_mute = mute = level & 0x40; | |
4903 | new_level = level = level & 0xf; | |
4904 | ||
4905 | if (strlencmp(cmd, "up") == 0) { | |
4906 | if (mute) | |
4907 | new_mute = 0; | |
4908 | else | |
4909 | new_level = level == 15 ? 15 : level + 1; | |
4910 | } else if (strlencmp(cmd, "down") == 0) { | |
4911 | if (mute) | |
4912 | new_mute = 0; | |
4913 | else | |
4914 | new_level = level == 0 ? 0 : level - 1; | |
4915 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4916 | new_level >= 0 && new_level <= 15) { | |
4917 | /* new_level set */ | |
4918 | } else if (strlencmp(cmd, "mute") == 0) { | |
4919 | new_mute = 0x40; | |
1da177e4 LT |
4920 | } else |
4921 | return -EINVAL; | |
4922 | ||
35ff8b9f HMH |
4923 | if (new_level != level) { |
4924 | /* mute doesn't change */ | |
4925 | ||
4926 | cmos_cmd = (new_level > level) ? | |
4927 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
4928 | inc = new_level > level ? 1 : -1; |
4929 | ||
c9bea99c | 4930 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4931 | !acpi_ec_write(volume_offset, level))) |
4932 | return -EIO; | |
4933 | ||
4934 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4935 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4936 | !acpi_ec_write(volume_offset, i + inc)) |
4937 | return -EIO; | |
4938 | ||
35ff8b9f HMH |
4939 | if (mute && |
4940 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
4941 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 4942 | return -EIO; |
35ff8b9f | 4943 | } |
78f81cc4 BD |
4944 | } |
4945 | ||
35ff8b9f HMH |
4946 | if (new_mute != mute) { |
4947 | /* level doesn't change */ | |
4948 | ||
4949 | cmos_cmd = (new_mute) ? | |
4950 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 4951 | |
c9bea99c | 4952 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4953 | !acpi_ec_write(volume_offset, level + new_mute)) |
4954 | return -EIO; | |
4955 | } | |
4956 | } | |
4957 | ||
4958 | return 0; | |
4959 | } | |
4960 | ||
a5763f22 HMH |
4961 | static struct ibm_struct volume_driver_data = { |
4962 | .name = "volume", | |
4963 | .read = volume_read, | |
4964 | .write = volume_write, | |
4965 | }; | |
56b6aeb0 HMH |
4966 | |
4967 | /************************************************************************* | |
4968 | * Fan subdriver | |
4969 | */ | |
4970 | ||
4971 | /* | |
4972 | * FAN ACCESS MODES | |
4973 | * | |
efa27145 | 4974 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4975 | * ACPI GFAN method: returns fan level |
4976 | * | |
efa27145 | 4977 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4978 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4979 | * |
efa27145 | 4980 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4981 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4982 | * | |
f51d1a39 HMH |
4983 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4984 | * it for writing. | |
56b6aeb0 | 4985 | * |
efa27145 | 4986 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4987 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4988 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4989 | * |
4990 | * Fan speed changes of any sort (including those caused by the | |
4991 | * disengaged mode) are usually done slowly by the firmware as the | |
4992 | * maximum ammount of fan duty cycle change per second seems to be | |
4993 | * limited. | |
4994 | * | |
4995 | * Reading is not available if GFAN exists. | |
4996 | * Writing is not available if SFAN exists. | |
4997 | * | |
4998 | * Bits | |
4999 | * 7 automatic mode engaged; | |
5000 | * (default operation mode of the ThinkPad) | |
5001 | * fan level is ignored in this mode. | |
f51d1a39 | 5002 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 5003 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
5004 | * the tachometer while the fan controller ramps up |
5005 | * the speed (which can take up to a few *minutes*). | |
5006 | * Speeds up fan to 100% duty-cycle, which is far above | |
5007 | * the standard RPM levels. It is not impossible that | |
5008 | * it could cause hardware damage. | |
56b6aeb0 HMH |
5009 | * 5-3 unused in some models. Extra bits for fan level |
5010 | * in others, but still useless as all values above | |
5011 | * 7 map to the same speed as level 7 in these models. | |
5012 | * 2-0 fan level (0..7 usually) | |
5013 | * 0x00 = stop | |
5014 | * 0x07 = max (set when temperatures critical) | |
5015 | * Some ThinkPads may have other levels, see | |
efa27145 | 5016 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
5017 | * |
5018 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
5019 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
5020 | * does so, its initial value is meaningless (0x07). | |
5021 | * | |
5022 | * For firmware bugs, refer to: | |
5023 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5024 | * | |
5025 | * ---- | |
5026 | * | |
5027 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
5028 | * Main fan tachometer reading (in RPM) | |
5029 | * | |
5030 | * This register is present on all ThinkPads with a new-style EC, and | |
5031 | * it is known not to be present on the A21m/e, and T22, as there is | |
5032 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
5033 | * ThinkPads from this same time period (and earlier) probably lack the | |
5034 | * tachometer as well. | |
5035 | * | |
5036 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
5037 | * was never fixed by IBM to report the EC firmware version string | |
5038 | * probably support the tachometer (like the early X models), so | |
5039 | * detecting it is quite hard. We need more data to know for sure. | |
5040 | * | |
5041 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
5042 | * might result. | |
5043 | * | |
f51d1a39 HMH |
5044 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
5045 | * mode. | |
56b6aeb0 HMH |
5046 | * |
5047 | * For firmware bugs, refer to: | |
5048 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5049 | * | |
efa27145 | 5050 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
5051 | * ThinkPad X31, X40, X41. Not available in the X60. |
5052 | * | |
5053 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
5054 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
5055 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
5056 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
5057 | * | |
5058 | * The speeds are stored on handles | |
5059 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
5060 | * | |
5061 | * There are three default speed sets, acessible as handles: | |
5062 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
5063 | * | |
5064 | * ACPI DSDT switches which set is in use depending on various | |
5065 | * factors. | |
5066 | * | |
efa27145 | 5067 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
5068 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
5069 | * but the ACPI tables just mention level 7. | |
5070 | */ | |
5071 | ||
f74a27d4 HMH |
5072 | enum { /* Fan control constants */ |
5073 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
5074 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
5075 | * 0x84 must be read before 0x85 */ | |
5076 | ||
5077 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
5078 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
5079 | ||
5080 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
5081 | }; | |
5082 | ||
5083 | enum fan_status_access_mode { | |
5084 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
5085 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
5086 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
5087 | }; | |
5088 | ||
5089 | enum fan_control_access_mode { | |
5090 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
5091 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
5092 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
5093 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
5094 | }; | |
5095 | ||
5096 | enum fan_control_commands { | |
5097 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
5098 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
5099 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
5100 | * and also watchdog cmd */ | |
5101 | }; | |
5102 | ||
5103 | static int fan_control_allowed; | |
5104 | ||
69ba91cb HMH |
5105 | static enum fan_status_access_mode fan_status_access_mode; |
5106 | static enum fan_control_access_mode fan_control_access_mode; | |
5107 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 5108 | |
778b4d74 | 5109 | static u8 fan_control_initial_status; |
fe98a52c | 5110 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
5111 | static int fan_watchdog_maxinterval; |
5112 | ||
5113 | static struct mutex fan_mutex; | |
778b4d74 | 5114 | |
25c68a33 | 5115 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 5116 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 5117 | |
e0c7dfe7 HMH |
5118 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
5119 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
5120 | "\\FSPD", /* 600e/x, 770e, 770x */ |
5121 | ); /* all others */ | |
e0c7dfe7 | 5122 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
5123 | "JFNS", /* 770x-JL */ |
5124 | ); /* all others */ | |
5125 | ||
fe98a52c | 5126 | /* |
b21a15f6 | 5127 | * Call with fan_mutex held |
fe98a52c | 5128 | */ |
b21a15f6 | 5129 | static void fan_update_desired_level(u8 status) |
fe98a52c | 5130 | { |
b21a15f6 HMH |
5131 | if ((status & |
5132 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5133 | if (status > 7) | |
5134 | fan_control_desired_level = 7; | |
5135 | else | |
5136 | fan_control_desired_level = status; | |
5137 | } | |
5138 | } | |
fe98a52c | 5139 | |
b21a15f6 HMH |
5140 | static int fan_get_status(u8 *status) |
5141 | { | |
5142 | u8 s; | |
fe98a52c | 5143 | |
b21a15f6 HMH |
5144 | /* TODO: |
5145 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 5146 | |
b21a15f6 HMH |
5147 | switch (fan_status_access_mode) { |
5148 | case TPACPI_FAN_RD_ACPI_GFAN: | |
5149 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 5150 | |
b21a15f6 HMH |
5151 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
5152 | return -EIO; | |
fe98a52c | 5153 | |
b21a15f6 HMH |
5154 | if (likely(status)) |
5155 | *status = s & 0x07; | |
fe98a52c | 5156 | |
b21a15f6 HMH |
5157 | break; |
5158 | ||
5159 | case TPACPI_FAN_RD_TPEC: | |
5160 | /* all except 570, 600e/x, 770e, 770x */ | |
5161 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
5162 | return -EIO; | |
5163 | ||
5164 | if (likely(status)) | |
5165 | *status = s; | |
fe98a52c | 5166 | |
fe98a52c | 5167 | break; |
b21a15f6 | 5168 | |
fe98a52c | 5169 | default: |
b21a15f6 | 5170 | return -ENXIO; |
fe98a52c HMH |
5171 | } |
5172 | ||
b21a15f6 HMH |
5173 | return 0; |
5174 | } | |
fe98a52c | 5175 | |
b21a15f6 HMH |
5176 | static int fan_get_status_safe(u8 *status) |
5177 | { | |
5178 | int rc; | |
5179 | u8 s; | |
fe98a52c | 5180 | |
b21a15f6 HMH |
5181 | if (mutex_lock_interruptible(&fan_mutex)) |
5182 | return -ERESTARTSYS; | |
5183 | rc = fan_get_status(&s); | |
5184 | if (!rc) | |
5185 | fan_update_desired_level(s); | |
5186 | mutex_unlock(&fan_mutex); | |
fe98a52c | 5187 | |
b21a15f6 HMH |
5188 | if (status) |
5189 | *status = s; | |
fe98a52c | 5190 | |
b21a15f6 HMH |
5191 | return rc; |
5192 | } | |
5193 | ||
5194 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 5195 | { |
b21a15f6 | 5196 | u8 hi, lo; |
fe98a52c | 5197 | |
b21a15f6 HMH |
5198 | switch (fan_status_access_mode) { |
5199 | case TPACPI_FAN_RD_TPEC: | |
5200 | /* all except 570, 600e/x, 770e, 770x */ | |
5201 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
5202 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
5203 | return -EIO; | |
fe98a52c | 5204 | |
b21a15f6 HMH |
5205 | if (likely(speed)) |
5206 | *speed = (hi << 8) | lo; | |
fe98a52c | 5207 | |
b21a15f6 | 5208 | break; |
fe98a52c | 5209 | |
b21a15f6 HMH |
5210 | default: |
5211 | return -ENXIO; | |
5212 | } | |
fe98a52c | 5213 | |
b21a15f6 | 5214 | return 0; |
fe98a52c HMH |
5215 | } |
5216 | ||
b21a15f6 | 5217 | static int fan_set_level(int level) |
fe98a52c | 5218 | { |
b21a15f6 HMH |
5219 | if (!fan_control_allowed) |
5220 | return -EPERM; | |
fe98a52c | 5221 | |
b21a15f6 HMH |
5222 | switch (fan_control_access_mode) { |
5223 | case TPACPI_FAN_WR_ACPI_SFAN: | |
5224 | if (level >= 0 && level <= 7) { | |
5225 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
5226 | return -EIO; | |
5227 | } else | |
5228 | return -EINVAL; | |
5229 | break; | |
fe98a52c | 5230 | |
b21a15f6 HMH |
5231 | case TPACPI_FAN_WR_ACPI_FANS: |
5232 | case TPACPI_FAN_WR_TPEC: | |
5233 | if ((level != TP_EC_FAN_AUTO) && | |
5234 | (level != TP_EC_FAN_FULLSPEED) && | |
5235 | ((level < 0) || (level > 7))) | |
5236 | return -EINVAL; | |
fe98a52c | 5237 | |
b21a15f6 HMH |
5238 | /* safety net should the EC not support AUTO |
5239 | * or FULLSPEED mode bits and just ignore them */ | |
5240 | if (level & TP_EC_FAN_FULLSPEED) | |
5241 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 5242 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 5243 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 5244 | |
b21a15f6 HMH |
5245 | if (!acpi_ec_write(fan_status_offset, level)) |
5246 | return -EIO; | |
5247 | else | |
5248 | tp_features.fan_ctrl_status_undef = 0; | |
5249 | break; | |
fe98a52c | 5250 | |
b21a15f6 HMH |
5251 | default: |
5252 | return -ENXIO; | |
5253 | } | |
5254 | return 0; | |
fe98a52c HMH |
5255 | } |
5256 | ||
b21a15f6 | 5257 | static int fan_set_level_safe(int level) |
fe98a52c | 5258 | { |
b21a15f6 | 5259 | int rc; |
fe98a52c | 5260 | |
b21a15f6 HMH |
5261 | if (!fan_control_allowed) |
5262 | return -EPERM; | |
fe98a52c | 5263 | |
b21a15f6 HMH |
5264 | if (mutex_lock_interruptible(&fan_mutex)) |
5265 | return -ERESTARTSYS; | |
fe98a52c | 5266 | |
b21a15f6 HMH |
5267 | if (level == TPACPI_FAN_LAST_LEVEL) |
5268 | level = fan_control_desired_level; | |
fe98a52c | 5269 | |
b21a15f6 HMH |
5270 | rc = fan_set_level(level); |
5271 | if (!rc) | |
5272 | fan_update_desired_level(level); | |
5273 | ||
5274 | mutex_unlock(&fan_mutex); | |
5275 | return rc; | |
fe98a52c HMH |
5276 | } |
5277 | ||
b21a15f6 | 5278 | static int fan_set_enable(void) |
fe98a52c | 5279 | { |
b21a15f6 HMH |
5280 | u8 s; |
5281 | int rc; | |
fe98a52c | 5282 | |
ecf2a80a HMH |
5283 | if (!fan_control_allowed) |
5284 | return -EPERM; | |
5285 | ||
b21a15f6 HMH |
5286 | if (mutex_lock_interruptible(&fan_mutex)) |
5287 | return -ERESTARTSYS; | |
fe98a52c | 5288 | |
b21a15f6 HMH |
5289 | switch (fan_control_access_mode) { |
5290 | case TPACPI_FAN_WR_ACPI_FANS: | |
5291 | case TPACPI_FAN_WR_TPEC: | |
5292 | rc = fan_get_status(&s); | |
5293 | if (rc < 0) | |
5294 | break; | |
fe98a52c | 5295 | |
b21a15f6 HMH |
5296 | /* Don't go out of emergency fan mode */ |
5297 | if (s != 7) { | |
5298 | s &= 0x07; | |
5299 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
5300 | } | |
fe98a52c | 5301 | |
b21a15f6 HMH |
5302 | if (!acpi_ec_write(fan_status_offset, s)) |
5303 | rc = -EIO; | |
5304 | else { | |
5305 | tp_features.fan_ctrl_status_undef = 0; | |
5306 | rc = 0; | |
5307 | } | |
5308 | break; | |
fe98a52c | 5309 | |
b21a15f6 HMH |
5310 | case TPACPI_FAN_WR_ACPI_SFAN: |
5311 | rc = fan_get_status(&s); | |
5312 | if (rc < 0) | |
5313 | break; | |
fe98a52c | 5314 | |
b21a15f6 | 5315 | s &= 0x07; |
fe98a52c | 5316 | |
b21a15f6 HMH |
5317 | /* Set fan to at least level 4 */ |
5318 | s |= 4; | |
fe08bc4b | 5319 | |
b21a15f6 | 5320 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 5321 | rc = -EIO; |
b21a15f6 HMH |
5322 | else |
5323 | rc = 0; | |
5324 | break; | |
78f81cc4 | 5325 | |
b21a15f6 HMH |
5326 | default: |
5327 | rc = -ENXIO; | |
5328 | } | |
5fba344c | 5329 | |
b21a15f6 HMH |
5330 | mutex_unlock(&fan_mutex); |
5331 | return rc; | |
69ba91cb | 5332 | } |
78f81cc4 | 5333 | |
b21a15f6 | 5334 | static int fan_set_disable(void) |
78f81cc4 | 5335 | { |
b21a15f6 | 5336 | int rc; |
c52f0aa5 | 5337 | |
b21a15f6 HMH |
5338 | if (!fan_control_allowed) |
5339 | return -EPERM; | |
78f81cc4 | 5340 | |
b21a15f6 HMH |
5341 | if (mutex_lock_interruptible(&fan_mutex)) |
5342 | return -ERESTARTSYS; | |
3ef8a609 | 5343 | |
b21a15f6 HMH |
5344 | rc = 0; |
5345 | switch (fan_control_access_mode) { | |
5346 | case TPACPI_FAN_WR_ACPI_FANS: | |
5347 | case TPACPI_FAN_WR_TPEC: | |
5348 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
5349 | rc = -EIO; | |
5350 | else { | |
5351 | fan_control_desired_level = 0; | |
5352 | tp_features.fan_ctrl_status_undef = 0; | |
5353 | } | |
3ef8a609 HMH |
5354 | break; |
5355 | ||
b21a15f6 HMH |
5356 | case TPACPI_FAN_WR_ACPI_SFAN: |
5357 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
5358 | rc = -EIO; | |
5359 | else | |
5360 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
5361 | break; |
5362 | ||
5363 | default: | |
b21a15f6 | 5364 | rc = -ENXIO; |
78f81cc4 BD |
5365 | } |
5366 | ||
fe98a52c | 5367 | |
fe98a52c | 5368 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5369 | return rc; |
5370 | } | |
5371 | ||
b21a15f6 | 5372 | static int fan_set_speed(int speed) |
c52f0aa5 | 5373 | { |
b21a15f6 | 5374 | int rc; |
c52f0aa5 | 5375 | |
b21a15f6 HMH |
5376 | if (!fan_control_allowed) |
5377 | return -EPERM; | |
3ef8a609 | 5378 | |
b21a15f6 HMH |
5379 | if (mutex_lock_interruptible(&fan_mutex)) |
5380 | return -ERESTARTSYS; | |
c52f0aa5 | 5381 | |
b21a15f6 HMH |
5382 | rc = 0; |
5383 | switch (fan_control_access_mode) { | |
5384 | case TPACPI_FAN_WR_ACPI_FANS: | |
5385 | if (speed >= 0 && speed <= 65535) { | |
5386 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5387 | speed, speed, speed)) | |
5388 | rc = -EIO; | |
5389 | } else | |
5390 | rc = -EINVAL; | |
c52f0aa5 HMH |
5391 | break; |
5392 | ||
5393 | default: | |
b21a15f6 | 5394 | rc = -ENXIO; |
c52f0aa5 HMH |
5395 | } |
5396 | ||
b21a15f6 HMH |
5397 | mutex_unlock(&fan_mutex); |
5398 | return rc; | |
16663a87 HMH |
5399 | } |
5400 | ||
5401 | static void fan_watchdog_reset(void) | |
5402 | { | |
94954cc6 | 5403 | static int fan_watchdog_active; |
16663a87 | 5404 | |
4985cd0a HMH |
5405 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5406 | return; | |
5407 | ||
16663a87 HMH |
5408 | if (fan_watchdog_active) |
5409 | cancel_delayed_work(&fan_watchdog_task); | |
5410 | ||
8fef502e HMH |
5411 | if (fan_watchdog_maxinterval > 0 && |
5412 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 5413 | fan_watchdog_active = 1; |
e0e3c061 | 5414 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
5415 | msecs_to_jiffies(fan_watchdog_maxinterval |
5416 | * 1000))) { | |
35ff8b9f | 5417 | printk(TPACPI_ERR |
e0e3c061 | 5418 | "failed to queue the fan watchdog, " |
16663a87 HMH |
5419 | "watchdog will not trigger\n"); |
5420 | } | |
5421 | } else | |
5422 | fan_watchdog_active = 0; | |
5423 | } | |
5424 | ||
b21a15f6 | 5425 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5426 | { |
b21a15f6 | 5427 | int rc; |
18ad7996 | 5428 | |
b21a15f6 HMH |
5429 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5430 | return; | |
a12095c2 | 5431 | |
e0c7dfe7 | 5432 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5433 | rc = fan_set_enable(); |
5434 | if (rc < 0) { | |
e0c7dfe7 | 5435 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5436 | "will try again later...\n", -rc); |
5437 | /* reschedule for later */ | |
5438 | fan_watchdog_reset(); | |
5439 | } | |
5440 | } | |
eaa7571b | 5441 | |
b21a15f6 HMH |
5442 | /* |
5443 | * SYSFS fan layout: hwmon compatible (device) | |
5444 | * | |
5445 | * pwm*_enable: | |
5446 | * 0: "disengaged" mode | |
5447 | * 1: manual mode | |
5448 | * 2: native EC "auto" mode (recommended, hardware default) | |
5449 | * | |
5450 | * pwm*: set speed in manual mode, ignored otherwise. | |
5451 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5452 | * interpolation. | |
5453 | * | |
5454 | * fan*_input: tachometer reading, RPM | |
5455 | * | |
5456 | * | |
5457 | * SYSFS fan layout: extensions | |
5458 | * | |
5459 | * fan_watchdog (driver): | |
5460 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5461 | */ | |
5462 | ||
5463 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5464 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5465 | struct device_attribute *attr, | |
5466 | char *buf) | |
5467 | { | |
5468 | int res, mode; | |
5469 | u8 status; | |
5470 | ||
5471 | res = fan_get_status_safe(&status); | |
5472 | if (res) | |
5473 | return res; | |
5474 | ||
5475 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5476 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5477 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5478 | } else { |
5479 | /* Return most likely status. In fact, it | |
5480 | * might be the only possible status */ | |
5481 | status = TP_EC_FAN_AUTO; | |
5482 | } | |
5483 | } | |
5484 | ||
5485 | if (status & TP_EC_FAN_FULLSPEED) { | |
5486 | mode = 0; | |
5487 | } else if (status & TP_EC_FAN_AUTO) { | |
5488 | mode = 2; | |
5489 | } else | |
5490 | mode = 1; | |
5491 | ||
5492 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5493 | } | |
a12095c2 | 5494 | |
b21a15f6 HMH |
5495 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5496 | struct device_attribute *attr, | |
5497 | const char *buf, size_t count) | |
5498 | { | |
5499 | unsigned long t; | |
5500 | int res, level; | |
5501 | ||
5502 | if (parse_strtoul(buf, 2, &t)) | |
5503 | return -EINVAL; | |
5504 | ||
5505 | switch (t) { | |
5506 | case 0: | |
5507 | level = TP_EC_FAN_FULLSPEED; | |
5508 | break; | |
5509 | case 1: | |
5510 | level = TPACPI_FAN_LAST_LEVEL; | |
5511 | break; | |
5512 | case 2: | |
5513 | level = TP_EC_FAN_AUTO; | |
5514 | break; | |
5515 | case 3: | |
5516 | /* reserved for software-controlled auto mode */ | |
5517 | return -ENOSYS; | |
18ad7996 | 5518 | default: |
b21a15f6 | 5519 | return -EINVAL; |
18ad7996 | 5520 | } |
b21a15f6 HMH |
5521 | |
5522 | res = fan_set_level_safe(level); | |
5523 | if (res == -ENXIO) | |
5524 | return -EINVAL; | |
5525 | else if (res < 0) | |
5526 | return res; | |
5527 | ||
5528 | fan_watchdog_reset(); | |
5529 | ||
5530 | return count; | |
18ad7996 HMH |
5531 | } |
5532 | ||
b21a15f6 HMH |
5533 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5534 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5535 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5536 | ||
5537 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5538 | static ssize_t fan_pwm1_show(struct device *dev, | |
5539 | struct device_attribute *attr, | |
5540 | char *buf) | |
fe98a52c | 5541 | { |
b21a15f6 HMH |
5542 | int res; |
5543 | u8 status; | |
fe98a52c | 5544 | |
b21a15f6 HMH |
5545 | res = fan_get_status_safe(&status); |
5546 | if (res) | |
5547 | return res; | |
ecf2a80a | 5548 | |
b21a15f6 HMH |
5549 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5550 | if (status != fan_control_initial_status) { | |
5551 | tp_features.fan_ctrl_status_undef = 0; | |
5552 | } else { | |
5553 | status = TP_EC_FAN_AUTO; | |
5554 | } | |
5555 | } | |
fe98a52c | 5556 | |
b21a15f6 HMH |
5557 | if ((status & |
5558 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5559 | status = fan_control_desired_level; | |
fe98a52c | 5560 | |
b21a15f6 HMH |
5561 | if (status > 7) |
5562 | status = 7; | |
fe98a52c | 5563 | |
b21a15f6 | 5564 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5565 | } |
5566 | ||
b21a15f6 HMH |
5567 | static ssize_t fan_pwm1_store(struct device *dev, |
5568 | struct device_attribute *attr, | |
5569 | const char *buf, size_t count) | |
18ad7996 | 5570 | { |
b21a15f6 | 5571 | unsigned long s; |
1c6a334e | 5572 | int rc; |
b21a15f6 | 5573 | u8 status, newlevel; |
1c6a334e | 5574 | |
b21a15f6 HMH |
5575 | if (parse_strtoul(buf, 255, &s)) |
5576 | return -EINVAL; | |
5577 | ||
5578 | /* scale down from 0-255 to 0-7 */ | |
5579 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5580 | |
fc589a3c HMH |
5581 | if (mutex_lock_interruptible(&fan_mutex)) |
5582 | return -ERESTARTSYS; | |
40ca9fdf | 5583 | |
b21a15f6 HMH |
5584 | rc = fan_get_status(&status); |
5585 | if (!rc && (status & | |
5586 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5587 | rc = fan_set_level(newlevel); | |
5588 | if (rc == -ENXIO) | |
5589 | rc = -EINVAL; | |
5590 | else if (!rc) { | |
5591 | fan_update_desired_level(newlevel); | |
5592 | fan_watchdog_reset(); | |
eaa7571b | 5593 | } |
b21a15f6 | 5594 | } |
1c6a334e | 5595 | |
b21a15f6 HMH |
5596 | mutex_unlock(&fan_mutex); |
5597 | return (rc)? rc : count; | |
5598 | } | |
1c6a334e | 5599 | |
b21a15f6 HMH |
5600 | static struct device_attribute dev_attr_fan_pwm1 = |
5601 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5602 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5603 | |
b21a15f6 HMH |
5604 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5605 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5606 | struct device_attribute *attr, | |
5607 | char *buf) | |
5608 | { | |
5609 | int res; | |
5610 | unsigned int speed; | |
1c6a334e | 5611 | |
b21a15f6 HMH |
5612 | res = fan_get_speed(&speed); |
5613 | if (res < 0) | |
5614 | return res; | |
1c6a334e | 5615 | |
b21a15f6 HMH |
5616 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5617 | } | |
18ad7996 | 5618 | |
b21a15f6 HMH |
5619 | static struct device_attribute dev_attr_fan_fan1_input = |
5620 | __ATTR(fan1_input, S_IRUGO, | |
5621 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5622 | |
b21a15f6 HMH |
5623 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5624 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5625 | char *buf) | |
5626 | { | |
5627 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5628 | } |
5629 | ||
b21a15f6 HMH |
5630 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5631 | const char *buf, size_t count) | |
18ad7996 | 5632 | { |
b21a15f6 HMH |
5633 | unsigned long t; |
5634 | ||
5635 | if (parse_strtoul(buf, 120, &t)) | |
5636 | return -EINVAL; | |
40ca9fdf | 5637 | |
ecf2a80a HMH |
5638 | if (!fan_control_allowed) |
5639 | return -EPERM; | |
5640 | ||
b21a15f6 HMH |
5641 | fan_watchdog_maxinterval = t; |
5642 | fan_watchdog_reset(); | |
40ca9fdf | 5643 | |
b21a15f6 HMH |
5644 | return count; |
5645 | } | |
5646 | ||
5647 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5648 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5649 | ||
5650 | /* --------------------------------------------------------------------- */ | |
5651 | static struct attribute *fan_attributes[] = { | |
5652 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5653 | &dev_attr_fan_fan1_input.attr, | |
5654 | NULL | |
5655 | }; | |
5656 | ||
5657 | static const struct attribute_group fan_attr_group = { | |
5658 | .attrs = fan_attributes, | |
5659 | }; | |
5660 | ||
5661 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5662 | { | |
5663 | int rc; | |
5664 | ||
5665 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5666 | ||
5667 | mutex_init(&fan_mutex); | |
5668 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5669 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5670 | fan_control_commands = 0; | |
5671 | fan_watchdog_maxinterval = 0; | |
5672 | tp_features.fan_ctrl_status_undef = 0; | |
5673 | fan_control_desired_level = 7; | |
5674 | ||
e0c7dfe7 HMH |
5675 | TPACPI_ACPIHANDLE_INIT(fans); |
5676 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5677 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5678 | |
5679 | if (gfan_handle) { | |
5680 | /* 570, 600e/x, 770e, 770x */ | |
5681 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5682 | } else { | |
5683 | /* all other ThinkPads: note that even old-style | |
5684 | * ThinkPad ECs supports the fan control register */ | |
5685 | if (likely(acpi_ec_read(fan_status_offset, | |
5686 | &fan_control_initial_status))) { | |
5687 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5688 | ||
5689 | /* In some ThinkPads, neither the EC nor the ACPI | |
5690 | * DSDT initialize the fan status, and it ends up | |
5691 | * being set to 0x07 when it *could* be either | |
5692 | * 0x07 or 0x80. | |
5693 | * | |
5694 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5695 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5696 | * to be buggy. */ | |
5697 | if (fan_control_initial_status == 0x07) { | |
5698 | switch (thinkpad_id.ec_model) { | |
5699 | case 0x5931: /* TP-1Y */ | |
5700 | case 0x3837: /* TP-78 */ | |
5701 | case 0x3637: /* TP-76 */ | |
5702 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5703 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
5704 | "fan_init: initial fan status " |
5705 | "is unknown, assuming it is " | |
5706 | "in auto mode\n"); | |
b21a15f6 HMH |
5707 | tp_features.fan_ctrl_status_undef = 1; |
5708 | ;; | |
5709 | } | |
5710 | } | |
5711 | } else { | |
e0c7dfe7 | 5712 | printk(TPACPI_ERR |
b21a15f6 HMH |
5713 | "ThinkPad ACPI EC access misbehaving, " |
5714 | "fan status and control unavailable\n"); | |
5715 | return 1; | |
5716 | } | |
5717 | } | |
5718 | ||
5719 | if (sfan_handle) { | |
5720 | /* 570, 770x-JL */ | |
5721 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5722 | fan_control_commands |= | |
5723 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5724 | } else { | |
5725 | if (!gfan_handle) { | |
5726 | /* gfan without sfan means no fan control */ | |
5727 | /* all other models implement TP EC 0x2f control */ | |
5728 | ||
5729 | if (fans_handle) { | |
5730 | /* X31, X40, X41 */ | |
5731 | fan_control_access_mode = | |
5732 | TPACPI_FAN_WR_ACPI_FANS; | |
5733 | fan_control_commands |= | |
5734 | TPACPI_FAN_CMD_SPEED | | |
5735 | TPACPI_FAN_CMD_LEVEL | | |
5736 | TPACPI_FAN_CMD_ENABLE; | |
5737 | } else { | |
5738 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5739 | fan_control_commands |= | |
5740 | TPACPI_FAN_CMD_LEVEL | | |
5741 | TPACPI_FAN_CMD_ENABLE; | |
5742 | } | |
fe98a52c | 5743 | } |
b21a15f6 | 5744 | } |
18ad7996 | 5745 | |
b21a15f6 HMH |
5746 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5747 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5748 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5749 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5750 | |
b21a15f6 HMH |
5751 | /* fan control master switch */ |
5752 | if (!fan_control_allowed) { | |
5753 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5754 | fan_control_commands = 0; | |
5755 | dbg_printk(TPACPI_DBG_INIT, | |
5756 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5757 | } |
40ca9fdf | 5758 | |
b21a15f6 HMH |
5759 | /* update fan_control_desired_level */ |
5760 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5761 | fan_get_status_safe(NULL); | |
fe98a52c | 5762 | |
b21a15f6 HMH |
5763 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5764 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5765 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5766 | &fan_attr_group); | |
5767 | if (!(rc < 0)) | |
5768 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5769 | &driver_attr_fan_watchdog); | |
5770 | if (rc < 0) | |
5771 | return rc; | |
5772 | return 0; | |
5773 | } else | |
5774 | return 1; | |
56b6aeb0 HMH |
5775 | } |
5776 | ||
b21a15f6 | 5777 | static void fan_exit(void) |
56b6aeb0 | 5778 | { |
35ff8b9f HMH |
5779 | vdbg_printk(TPACPI_DBG_EXIT, |
5780 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 5781 | |
b21a15f6 HMH |
5782 | /* FIXME: can we really do this unconditionally? */ |
5783 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
5784 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
5785 | &driver_attr_fan_watchdog); | |
40ca9fdf | 5786 | |
b21a15f6 | 5787 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 5788 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
5789 | } |
5790 | ||
5791 | static int fan_read(char *p) | |
5792 | { | |
5793 | int len = 0; | |
5794 | int rc; | |
5795 | u8 status; | |
5796 | unsigned int speed = 0; | |
5797 | ||
5798 | switch (fan_status_access_mode) { | |
efa27145 | 5799 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5800 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5801 | rc = fan_get_status_safe(&status); |
5802 | if (rc < 0) | |
56b6aeb0 HMH |
5803 | return rc; |
5804 | ||
5805 | len += sprintf(p + len, "status:\t\t%s\n" | |
5806 | "level:\t\t%d\n", | |
5807 | (status != 0) ? "enabled" : "disabled", status); | |
5808 | break; | |
5809 | ||
efa27145 | 5810 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5811 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
5812 | rc = fan_get_status_safe(&status); |
5813 | if (rc < 0) | |
56b6aeb0 HMH |
5814 | return rc; |
5815 | ||
d8fd94d9 | 5816 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5817 | if (status != fan_control_initial_status) |
d8fd94d9 | 5818 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5819 | else |
5820 | /* Return most likely status. In fact, it | |
5821 | * might be the only possible status */ | |
efa27145 | 5822 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5823 | } |
5824 | ||
5825 | len += sprintf(p + len, "status:\t\t%s\n", | |
5826 | (status != 0) ? "enabled" : "disabled"); | |
5827 | ||
35ff8b9f HMH |
5828 | rc = fan_get_speed(&speed); |
5829 | if (rc < 0) | |
56b6aeb0 HMH |
5830 | return rc; |
5831 | ||
5832 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5833 | ||
efa27145 | 5834 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5835 | /* Disengaged mode takes precedence */ |
5836 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5837 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5838 | len += sprintf(p + len, "level:\t\tauto\n"); |
5839 | else | |
5840 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5841 | break; | |
5842 | ||
efa27145 | 5843 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5844 | default: |
5845 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5846 | } | |
5847 | ||
efa27145 | 5848 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5849 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5850 | ||
5851 | switch (fan_control_access_mode) { | |
efa27145 | 5852 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5853 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5854 | break; | |
5855 | ||
5856 | default: | |
5857 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5858 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5859 | break; |
5860 | } | |
5861 | } | |
18ad7996 | 5862 | |
efa27145 | 5863 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 5864 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
5865 | "commands:\twatchdog <timeout> (<timeout> " |
5866 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 5867 | |
efa27145 | 5868 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5869 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5870 | " (<speed> is 0-65535)\n"); | |
5871 | ||
5872 | return len; | |
78f81cc4 BD |
5873 | } |
5874 | ||
18ad7996 HMH |
5875 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5876 | { | |
5877 | int level; | |
5878 | ||
a12095c2 | 5879 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5880 | level = TP_EC_FAN_AUTO; |
fe98a52c | 5881 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 5882 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 5883 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5884 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5885 | return 0; |
5886 | ||
35ff8b9f HMH |
5887 | *rc = fan_set_level_safe(level); |
5888 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5889 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5890 | "access mode %d", fan_control_access_mode); |
5891 | ||
5892 | return 1; | |
5893 | } | |
5894 | ||
5895 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5896 | { | |
5897 | if (strlencmp(cmd, "enable") != 0) | |
5898 | return 0; | |
5899 | ||
35ff8b9f HMH |
5900 | *rc = fan_set_enable(); |
5901 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5902 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5903 | "access mode %d", fan_control_access_mode); |
5904 | ||
5905 | return 1; | |
5906 | } | |
5907 | ||
5908 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5909 | { | |
5910 | if (strlencmp(cmd, "disable") != 0) | |
5911 | return 0; | |
5912 | ||
35ff8b9f HMH |
5913 | *rc = fan_set_disable(); |
5914 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5915 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5916 | "access mode %d", fan_control_access_mode); |
5917 | ||
5918 | return 1; | |
5919 | } | |
5920 | ||
5921 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5922 | { | |
5923 | int speed; | |
5924 | ||
a8b7a662 HMH |
5925 | /* TODO: |
5926 | * Support speed <low> <medium> <high> ? */ | |
5927 | ||
18ad7996 HMH |
5928 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5929 | return 0; | |
5930 | ||
35ff8b9f HMH |
5931 | *rc = fan_set_speed(speed); |
5932 | if (*rc == -ENXIO) | |
e0c7dfe7 | 5933 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5934 | "access mode %d", fan_control_access_mode); |
5935 | ||
5936 | return 1; | |
5937 | } | |
5938 | ||
16663a87 HMH |
5939 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5940 | { | |
5941 | int interval; | |
5942 | ||
5943 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5944 | return 0; | |
5945 | ||
5946 | if (interval < 0 || interval > 120) | |
5947 | *rc = -EINVAL; | |
5948 | else | |
5949 | fan_watchdog_maxinterval = interval; | |
5950 | ||
5951 | return 1; | |
5952 | } | |
5953 | ||
18ad7996 HMH |
5954 | static int fan_write(char *buf) |
5955 | { | |
5956 | char *cmd; | |
5957 | int rc = 0; | |
5958 | ||
5959 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5960 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5961 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5962 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5963 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5964 | fan_write_cmd_disable(cmd, &rc) || |
5965 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5966 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5967 | fan_write_cmd_speed(cmd, &rc)) |
5968 | ) | |
5969 | rc = -EINVAL; | |
16663a87 HMH |
5970 | else if (!rc) |
5971 | fan_watchdog_reset(); | |
18ad7996 HMH |
5972 | } |
5973 | ||
5974 | return rc; | |
5975 | } | |
5976 | ||
a5763f22 HMH |
5977 | static struct ibm_struct fan_driver_data = { |
5978 | .name = "fan", | |
5979 | .read = fan_read, | |
5980 | .write = fan_write, | |
5981 | .exit = fan_exit, | |
a5763f22 HMH |
5982 | }; |
5983 | ||
56b6aeb0 HMH |
5984 | /**************************************************************************** |
5985 | **************************************************************************** | |
5986 | * | |
5987 | * Infrastructure | |
5988 | * | |
5989 | **************************************************************************** | |
5990 | ****************************************************************************/ | |
5991 | ||
7fd40029 HMH |
5992 | /* sysfs name ---------------------------------------------------------- */ |
5993 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5994 | struct device_attribute *attr, | |
5995 | char *buf) | |
5996 | { | |
e0c7dfe7 | 5997 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5998 | } |
5999 | ||
6000 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
6001 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
6002 | ||
6003 | /* --------------------------------------------------------------------- */ | |
6004 | ||
56b6aeb0 | 6005 | /* /proc support */ |
94954cc6 | 6006 | static struct proc_dir_entry *proc_dir; |
16663a87 | 6007 | |
56b6aeb0 HMH |
6008 | /* |
6009 | * Module and infrastructure proble, init and exit handling | |
6010 | */ | |
1da177e4 | 6011 | |
b21a15f6 HMH |
6012 | static int force_load; |
6013 | ||
fe08bc4b | 6014 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 6015 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 6016 | { |
a5763f22 | 6017 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 6018 | |
a5763f22 | 6019 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
6020 | } |
6021 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
6022 | ||
b21a15f6 HMH |
6023 | static void ibm_exit(struct ibm_struct *ibm) |
6024 | { | |
6025 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
6026 | ||
6027 | list_del_init(&ibm->all_drivers); | |
6028 | ||
6029 | if (ibm->flags.acpi_notify_installed) { | |
6030 | dbg_printk(TPACPI_DBG_EXIT, | |
6031 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
6032 | BUG_ON(!ibm->acpi); | |
6033 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
6034 | ibm->acpi->type, | |
6035 | dispatch_acpi_notify); | |
6036 | ibm->flags.acpi_notify_installed = 0; | |
6037 | ibm->flags.acpi_notify_installed = 0; | |
6038 | } | |
6039 | ||
6040 | if (ibm->flags.proc_created) { | |
6041 | dbg_printk(TPACPI_DBG_EXIT, | |
6042 | "%s: remove_proc_entry\n", ibm->name); | |
6043 | remove_proc_entry(ibm->name, proc_dir); | |
6044 | ibm->flags.proc_created = 0; | |
6045 | } | |
6046 | ||
6047 | if (ibm->flags.acpi_driver_registered) { | |
6048 | dbg_printk(TPACPI_DBG_EXIT, | |
6049 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
6050 | BUG_ON(!ibm->acpi); | |
6051 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
6052 | kfree(ibm->acpi->driver); | |
6053 | ibm->acpi->driver = NULL; | |
6054 | ibm->flags.acpi_driver_registered = 0; | |
6055 | } | |
6056 | ||
6057 | if (ibm->flags.init_called && ibm->exit) { | |
6058 | ibm->exit(); | |
6059 | ibm->flags.init_called = 0; | |
6060 | } | |
6061 | ||
6062 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
6063 | } | |
f74a27d4 | 6064 | |
a5763f22 | 6065 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
6066 | { |
6067 | int ret; | |
a5763f22 | 6068 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
6069 | struct proc_dir_entry *entry; |
6070 | ||
a5763f22 HMH |
6071 | BUG_ON(ibm == NULL); |
6072 | ||
6073 | INIT_LIST_HEAD(&ibm->all_drivers); | |
6074 | ||
92641177 | 6075 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
6076 | return 0; |
6077 | ||
fe08bc4b HMH |
6078 | dbg_printk(TPACPI_DBG_INIT, |
6079 | "probing for %s\n", ibm->name); | |
6080 | ||
a5763f22 HMH |
6081 | if (iibm->init) { |
6082 | ret = iibm->init(iibm); | |
5fba344c HMH |
6083 | if (ret > 0) |
6084 | return 0; /* probe failed */ | |
6085 | if (ret) | |
1da177e4 | 6086 | return ret; |
a5763f22 | 6087 | |
92641177 | 6088 | ibm->flags.init_called = 1; |
1da177e4 LT |
6089 | } |
6090 | ||
8d376cd6 HMH |
6091 | if (ibm->acpi) { |
6092 | if (ibm->acpi->hid) { | |
6093 | ret = register_tpacpi_subdriver(ibm); | |
6094 | if (ret) | |
6095 | goto err_out; | |
6096 | } | |
5fba344c | 6097 | |
8d376cd6 HMH |
6098 | if (ibm->acpi->notify) { |
6099 | ret = setup_acpi_notify(ibm); | |
6100 | if (ret == -ENODEV) { | |
e0c7dfe7 | 6101 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
6102 | ibm->name); |
6103 | ret = 0; | |
6104 | goto err_out; | |
6105 | } | |
6106 | if (ret < 0) | |
6107 | goto err_out; | |
5fba344c | 6108 | } |
5fba344c HMH |
6109 | } |
6110 | ||
fe08bc4b HMH |
6111 | dbg_printk(TPACPI_DBG_INIT, |
6112 | "%s installed\n", ibm->name); | |
6113 | ||
78f81cc4 BD |
6114 | if (ibm->read) { |
6115 | entry = create_proc_entry(ibm->name, | |
6116 | S_IFREG | S_IRUGO | S_IWUSR, | |
6117 | proc_dir); | |
6118 | if (!entry) { | |
e0c7dfe7 | 6119 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 6120 | ibm->name); |
5fba344c HMH |
6121 | ret = -ENODEV; |
6122 | goto err_out; | |
78f81cc4 BD |
6123 | } |
6124 | entry->owner = THIS_MODULE; | |
6125 | entry->data = ibm; | |
8d376cd6 | 6126 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 6127 | if (ibm->write) |
8d376cd6 | 6128 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 6129 | ibm->flags.proc_created = 1; |
78f81cc4 | 6130 | } |
1da177e4 | 6131 | |
a5763f22 HMH |
6132 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
6133 | ||
1da177e4 | 6134 | return 0; |
5fba344c HMH |
6135 | |
6136 | err_out: | |
fe08bc4b HMH |
6137 | dbg_printk(TPACPI_DBG_INIT, |
6138 | "%s: at error exit path with result %d\n", | |
6139 | ibm->name, ret); | |
6140 | ||
5fba344c HMH |
6141 | ibm_exit(ibm); |
6142 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
6143 | } |
6144 | ||
56b6aeb0 HMH |
6145 | /* Probing */ |
6146 | ||
d5a2f2f1 | 6147 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 6148 | { |
1855256c | 6149 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 6150 | char ec_fw_string[18]; |
1da177e4 | 6151 | |
d5a2f2f1 HMH |
6152 | if (!tp) |
6153 | return; | |
6154 | ||
6155 | memset(tp, 0, sizeof(*tp)); | |
6156 | ||
6157 | if (dmi_name_in_vendors("IBM")) | |
6158 | tp->vendor = PCI_VENDOR_ID_IBM; | |
6159 | else if (dmi_name_in_vendors("LENOVO")) | |
6160 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
6161 | else | |
6162 | return; | |
6163 | ||
6164 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
6165 | GFP_KERNEL); | |
6166 | if (!tp->bios_version_str) | |
6167 | return; | |
6168 | tp->bios_model = tp->bios_version_str[0] | |
6169 | | (tp->bios_version_str[1] << 8); | |
6170 | ||
56b6aeb0 HMH |
6171 | /* |
6172 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
6173 | * X32 or newer, all Z series; Some models must have an | |
6174 | * up-to-date BIOS or they will not be detected. | |
6175 | * | |
6176 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6177 | */ | |
6178 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
6179 | if (sscanf(dev->name, | |
6180 | "IBM ThinkPad Embedded Controller -[%17c", | |
6181 | ec_fw_string) == 1) { | |
6182 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
6183 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
6184 | |
6185 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
6186 | tp->ec_model = ec_fw_string[0] | |
6187 | | (ec_fw_string[1] << 8); | |
6188 | break; | |
78f81cc4 | 6189 | } |
1da177e4 | 6190 | } |
d5a2f2f1 HMH |
6191 | |
6192 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
6193 | GFP_KERNEL); | |
6194 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
6195 | kfree(tp->model_str); | |
6196 | tp->model_str = NULL; | |
6197 | } | |
8c74adbc HMH |
6198 | |
6199 | tp->nummodel_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_NAME), | |
6200 | GFP_KERNEL); | |
1da177e4 LT |
6201 | } |
6202 | ||
5fba344c HMH |
6203 | static int __init probe_for_thinkpad(void) |
6204 | { | |
6205 | int is_thinkpad; | |
6206 | ||
6207 | if (acpi_disabled) | |
6208 | return -ENODEV; | |
6209 | ||
6210 | /* | |
6211 | * Non-ancient models have better DMI tagging, but very old models | |
6212 | * don't. | |
6213 | */ | |
d5a2f2f1 | 6214 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
6215 | |
6216 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 6217 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
6218 | if (!ec_handle) { |
6219 | if (is_thinkpad) | |
e0c7dfe7 | 6220 | printk(TPACPI_ERR |
5fba344c HMH |
6221 | "Not yet supported ThinkPad detected!\n"); |
6222 | return -ENODEV; | |
6223 | } | |
6224 | ||
0dcef77c HMH |
6225 | /* |
6226 | * Risks a regression on very old machines, but reduces potential | |
6227 | * false positives a damn great deal | |
6228 | */ | |
6229 | if (!is_thinkpad) | |
d5a2f2f1 | 6230 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
6231 | |
6232 | if (!is_thinkpad && !force_load) | |
6233 | return -ENODEV; | |
6234 | ||
5fba344c HMH |
6235 | return 0; |
6236 | } | |
6237 | ||
6238 | ||
56b6aeb0 | 6239 | /* Module init, exit, parameters */ |
1da177e4 | 6240 | |
a5763f22 HMH |
6241 | static struct ibm_init_struct ibms_init[] __initdata = { |
6242 | { | |
6243 | .init = thinkpad_acpi_driver_init, | |
6244 | .data = &thinkpad_acpi_driver_data, | |
6245 | }, | |
6246 | { | |
6247 | .init = hotkey_init, | |
6248 | .data = &hotkey_driver_data, | |
6249 | }, | |
6250 | { | |
6251 | .init = bluetooth_init, | |
6252 | .data = &bluetooth_driver_data, | |
6253 | }, | |
6254 | { | |
6255 | .init = wan_init, | |
6256 | .data = &wan_driver_data, | |
6257 | }, | |
d7c1d17d | 6258 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
6259 | { |
6260 | .init = video_init, | |
6261 | .data = &video_driver_data, | |
6262 | }, | |
d7c1d17d | 6263 | #endif |
a5763f22 HMH |
6264 | { |
6265 | .init = light_init, | |
6266 | .data = &light_driver_data, | |
6267 | }, | |
6268 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
6269 | { | |
6270 | .init = dock_init, | |
6271 | .data = &dock_driver_data[0], | |
6272 | }, | |
6273 | { | |
d94a7f16 | 6274 | .init = dock_init2, |
a5763f22 HMH |
6275 | .data = &dock_driver_data[1], |
6276 | }, | |
6277 | #endif | |
6278 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
6279 | { | |
6280 | .init = bay_init, | |
6281 | .data = &bay_driver_data, | |
6282 | }, | |
6283 | #endif | |
6284 | { | |
6285 | .init = cmos_init, | |
6286 | .data = &cmos_driver_data, | |
6287 | }, | |
6288 | { | |
6289 | .init = led_init, | |
6290 | .data = &led_driver_data, | |
6291 | }, | |
6292 | { | |
6293 | .init = beep_init, | |
6294 | .data = &beep_driver_data, | |
6295 | }, | |
6296 | { | |
6297 | .init = thermal_init, | |
6298 | .data = &thermal_driver_data, | |
6299 | }, | |
6300 | { | |
6301 | .data = &ecdump_driver_data, | |
6302 | }, | |
6303 | { | |
6304 | .init = brightness_init, | |
6305 | .data = &brightness_driver_data, | |
6306 | }, | |
6307 | { | |
6308 | .data = &volume_driver_data, | |
6309 | }, | |
6310 | { | |
6311 | .init = fan_init, | |
6312 | .data = &fan_driver_data, | |
6313 | }, | |
6314 | }; | |
6315 | ||
3945ac36 | 6316 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
6317 | { |
6318 | unsigned int i; | |
a5763f22 | 6319 | struct ibm_struct *ibm; |
1da177e4 | 6320 | |
59f91ff1 HMH |
6321 | if (!kp || !kp->name || !val) |
6322 | return -EINVAL; | |
6323 | ||
a5763f22 HMH |
6324 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6325 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
6326 | WARN_ON(ibm == NULL); |
6327 | ||
6328 | if (!ibm || !ibm->name) | |
6329 | continue; | |
a5763f22 HMH |
6330 | |
6331 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
6332 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 6333 | return -ENOSPC; |
a5763f22 HMH |
6334 | strcpy(ibms_init[i].param, val); |
6335 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
6336 | return 0; |
6337 | } | |
a5763f22 | 6338 | } |
1da177e4 | 6339 | |
1da177e4 LT |
6340 | return -EINVAL; |
6341 | } | |
6342 | ||
56b6aeb0 | 6343 | module_param(experimental, int, 0); |
f68080f8 | 6344 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 6345 | "Enables experimental features when non-zero"); |
56b6aeb0 | 6346 | |
132ce091 | 6347 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 6348 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 6349 | |
86cc9445 | 6350 | module_param(force_load, bool, 0); |
f68080f8 | 6351 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
6352 | "Attempts to load the driver even on a " |
6353 | "mis-identified ThinkPad when true"); | |
0dcef77c | 6354 | |
86cc9445 | 6355 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 6356 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 6357 | "Enables setting fan parameters features when true"); |
ecf2a80a | 6358 | |
24d3b774 | 6359 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 6360 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
6361 | "Selects brightness control strategy: " |
6362 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 6363 | |
87cc537a | 6364 | module_param(brightness_enable, uint, 0); |
f68080f8 | 6365 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 6366 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 6367 | |
ff80f137 | 6368 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6369 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6370 | "used for backwards compatibility with userspace, " |
6371 | "see documentation"); | |
ff80f137 | 6372 | |
e0c7dfe7 | 6373 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6374 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6375 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6376 | "at module load, see documentation") |
1da177e4 | 6377 | |
e0c7dfe7 HMH |
6378 | TPACPI_PARAM(hotkey); |
6379 | TPACPI_PARAM(bluetooth); | |
6380 | TPACPI_PARAM(video); | |
6381 | TPACPI_PARAM(light); | |
85998248 | 6382 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6383 | TPACPI_PARAM(dock); |
63e5f248 | 6384 | #endif |
85998248 | 6385 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6386 | TPACPI_PARAM(bay); |
85998248 | 6387 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6388 | TPACPI_PARAM(cmos); |
6389 | TPACPI_PARAM(led); | |
6390 | TPACPI_PARAM(beep); | |
6391 | TPACPI_PARAM(ecdump); | |
6392 | TPACPI_PARAM(brightness); | |
6393 | TPACPI_PARAM(volume); | |
6394 | TPACPI_PARAM(fan); | |
78f81cc4 | 6395 | |
b21a15f6 HMH |
6396 | static void thinkpad_acpi_module_exit(void) |
6397 | { | |
6398 | struct ibm_struct *ibm, *itmp; | |
6399 | ||
6400 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6401 | ||
6402 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6403 | &tpacpi_all_drivers, | |
6404 | all_drivers) { | |
6405 | ibm_exit(ibm); | |
6406 | } | |
6407 | ||
6408 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6409 | ||
6410 | if (tpacpi_inputdev) { | |
6411 | if (tp_features.input_device_registered) | |
6412 | input_unregister_device(tpacpi_inputdev); | |
6413 | else | |
6414 | input_free_device(tpacpi_inputdev); | |
6415 | } | |
6416 | ||
6417 | if (tpacpi_hwmon) | |
6418 | hwmon_device_unregister(tpacpi_hwmon); | |
6419 | ||
6420 | if (tp_features.sensors_pdev_attrs_registered) | |
6421 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6422 | &dev_attr_thinkpad_acpi_pdev_name); | |
6423 | if (tpacpi_sensors_pdev) | |
6424 | platform_device_unregister(tpacpi_sensors_pdev); | |
6425 | if (tpacpi_pdev) | |
6426 | platform_device_unregister(tpacpi_pdev); | |
6427 | ||
6428 | if (tp_features.sensors_pdrv_attrs_registered) | |
6429 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6430 | if (tp_features.platform_drv_attrs_registered) | |
6431 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6432 | ||
6433 | if (tp_features.sensors_pdrv_registered) | |
6434 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6435 | ||
6436 | if (tp_features.platform_drv_registered) | |
6437 | platform_driver_unregister(&tpacpi_pdriver); | |
6438 | ||
6439 | if (proc_dir) | |
e0c7dfe7 | 6440 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 6441 | |
e0e3c061 HMH |
6442 | if (tpacpi_wq) |
6443 | destroy_workqueue(tpacpi_wq); | |
6444 | ||
b21a15f6 HMH |
6445 | kfree(thinkpad_id.bios_version_str); |
6446 | kfree(thinkpad_id.ec_version_str); | |
6447 | kfree(thinkpad_id.model_str); | |
6448 | } | |
6449 | ||
f74a27d4 | 6450 | |
1def7115 | 6451 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6452 | { |
6453 | int ret, i; | |
6454 | ||
8fef502e HMH |
6455 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
6456 | ||
ff80f137 HMH |
6457 | /* Parameter checking */ |
6458 | if (hotkey_report_mode > 2) | |
6459 | return -EINVAL; | |
6460 | ||
54ae1501 | 6461 | /* Driver-level probe */ |
d5a2f2f1 HMH |
6462 | |
6463 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 6464 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
6465 | if (ret) { |
6466 | thinkpad_acpi_module_exit(); | |
5fba344c | 6467 | return ret; |
d5a2f2f1 | 6468 | } |
1da177e4 | 6469 | |
54ae1501 | 6470 | /* Driver initialization */ |
d5a2f2f1 | 6471 | |
e0c7dfe7 HMH |
6472 | TPACPI_ACPIHANDLE_INIT(ecrd); |
6473 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 6474 | |
e0e3c061 HMH |
6475 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
6476 | if (!tpacpi_wq) { | |
6477 | thinkpad_acpi_module_exit(); | |
6478 | return -ENOMEM; | |
6479 | } | |
6480 | ||
e0c7dfe7 | 6481 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 6482 | if (!proc_dir) { |
35ff8b9f HMH |
6483 | printk(TPACPI_ERR |
6484 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 6485 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6486 | return -ENODEV; |
6487 | } | |
6488 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 6489 | |
54ae1501 HMH |
6490 | ret = platform_driver_register(&tpacpi_pdriver); |
6491 | if (ret) { | |
35ff8b9f HMH |
6492 | printk(TPACPI_ERR |
6493 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
6494 | thinkpad_acpi_module_exit(); |
6495 | return ret; | |
6496 | } | |
ac36393d HMH |
6497 | tp_features.platform_drv_registered = 1; |
6498 | ||
7fd40029 HMH |
6499 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
6500 | if (ret) { | |
35ff8b9f HMH |
6501 | printk(TPACPI_ERR |
6502 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
6503 | thinkpad_acpi_module_exit(); |
6504 | return ret; | |
6505 | } | |
6506 | tp_features.sensors_pdrv_registered = 1; | |
6507 | ||
176750d6 | 6508 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
6509 | if (!ret) { |
6510 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
6511 | ret = tpacpi_create_driver_attributes( |
6512 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 6513 | } |
176750d6 | 6514 | if (ret) { |
35ff8b9f HMH |
6515 | printk(TPACPI_ERR |
6516 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
6517 | thinkpad_acpi_module_exit(); |
6518 | return ret; | |
6519 | } | |
2369cc94 | 6520 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 6521 | |
54ae1501 HMH |
6522 | |
6523 | /* Device initialization */ | |
e0c7dfe7 | 6524 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
6525 | NULL, 0); |
6526 | if (IS_ERR(tpacpi_pdev)) { | |
6527 | ret = PTR_ERR(tpacpi_pdev); | |
6528 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 6529 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
6530 | thinkpad_acpi_module_exit(); |
6531 | return ret; | |
6532 | } | |
7fd40029 | 6533 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
6534 | TPACPI_HWMON_DRVR_NAME, |
6535 | -1, NULL, 0); | |
7fd40029 HMH |
6536 | if (IS_ERR(tpacpi_sensors_pdev)) { |
6537 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
6538 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
6539 | printk(TPACPI_ERR |
6540 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
6541 | thinkpad_acpi_module_exit(); |
6542 | return ret; | |
6543 | } | |
6544 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
6545 | &dev_attr_thinkpad_acpi_pdev_name); | |
6546 | if (ret) { | |
e0c7dfe7 | 6547 | printk(TPACPI_ERR |
35ff8b9f | 6548 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
6549 | thinkpad_acpi_module_exit(); |
6550 | return ret; | |
6551 | } | |
6552 | tp_features.sensors_pdev_attrs_registered = 1; | |
6553 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
6554 | if (IS_ERR(tpacpi_hwmon)) { |
6555 | ret = PTR_ERR(tpacpi_hwmon); | |
6556 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 6557 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
6558 | thinkpad_acpi_module_exit(); |
6559 | return ret; | |
6560 | } | |
8523ed6f | 6561 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
6562 | tpacpi_inputdev = input_allocate_device(); |
6563 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 6564 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
6565 | thinkpad_acpi_module_exit(); |
6566 | return -ENOMEM; | |
6567 | } else { | |
6568 | /* Prepare input device, but don't register */ | |
6569 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 6570 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 6571 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
6572 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
6573 | thinkpad_id.vendor : | |
6574 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
6575 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
6576 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
6577 | } | |
a5763f22 HMH |
6578 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6579 | ret = ibm_init(&ibms_init[i]); | |
6580 | if (ret >= 0 && *ibms_init[i].param) | |
6581 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 6582 | if (ret < 0) { |
1def7115 | 6583 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
6584 | return ret; |
6585 | } | |
6586 | } | |
7f5d1cd6 HMH |
6587 | ret = input_register_device(tpacpi_inputdev); |
6588 | if (ret < 0) { | |
e0c7dfe7 | 6589 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
6590 | thinkpad_acpi_module_exit(); |
6591 | return ret; | |
6592 | } else { | |
6593 | tp_features.input_device_registered = 1; | |
6594 | } | |
1da177e4 | 6595 | |
8fef502e | 6596 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6597 | return 0; |
6598 | } | |
6599 | ||
f68080f8 HMH |
6600 | /* Please remove this in year 2009 */ |
6601 | MODULE_ALIAS("ibm_acpi"); | |
6602 | ||
95e57ab2 HMH |
6603 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
6604 | ||
f68080f8 HMH |
6605 | /* |
6606 | * DMI matching for module autoloading | |
6607 | * | |
6608 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6609 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
6610 | * | |
6611 | * Only models listed in thinkwiki will be supported, so add yours | |
6612 | * if it is not there yet. | |
6613 | */ | |
6614 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
6615 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
6616 | ||
6617 | /* Non-ancient thinkpads */ | |
6618 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
6619 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
6620 | ||
6621 | /* Ancient thinkpad BIOSes have to be identified by | |
6622 | * BIOS type or model number, and there are far less | |
6623 | * BIOS types than model numbers... */ | |
6624 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
6625 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
6626 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
6627 | ||
6628 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
6629 | MODULE_DESCRIPTION(TPACPI_DESC); |
6630 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
6631 | MODULE_LICENSE("GPL"); |
6632 | ||
1def7115 HMH |
6633 | module_init(thinkpad_acpi_module_init); |
6634 | module_exit(thinkpad_acpi_module_exit); |