Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
50efd831 | 24 | #define IBM_VERSION "0.18" |
01e88f25 | 25 | #define TPACPI_SYSFS_VERSION 0x020101 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
70 | #include <asm/uaccess.h> | |
71 | ||
72 | #include <linux/dmi.h> | |
73 | #include <linux/jiffies.h> | |
74 | #include <linux/workqueue.h> | |
75 | ||
76 | #include <acpi/acpi_drivers.h> | |
77 | #include <acpi/acnamesp.h> | |
78 | ||
79 | #include <linux/pci_ids.h> | |
80 | ||
0c78039f HMH |
81 | |
82 | /* ThinkPad CMOS commands */ | |
83 | #define TP_CMOS_VOLUME_DOWN 0 | |
84 | #define TP_CMOS_VOLUME_UP 1 | |
85 | #define TP_CMOS_VOLUME_MUTE 2 | |
86 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
87 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
88 | ||
89 | /* NVRAM Addresses */ | |
90 | enum tp_nvram_addr { | |
91 | TP_NVRAM_ADDR_HK2 = 0x57, | |
92 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
93 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
94 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
95 | TP_NVRAM_ADDR_MIXER = 0x60, | |
96 | }; | |
97 | ||
98 | /* NVRAM bit masks */ | |
99 | enum { | |
100 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
101 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
102 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
103 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
104 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
105 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
106 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
107 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
108 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
109 | TP_NVRAM_MASK_MUTE = 0x40, | |
110 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
111 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
112 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
113 | }; | |
114 | ||
b21a15f6 HMH |
115 | /* ACPI HIDs */ |
116 | #define IBM_HKEY_HID "IBM0068" | |
117 | ||
118 | /* Input IDs */ | |
119 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
120 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
121 | ||
122 | ||
123 | /**************************************************************************** | |
124 | * Main driver | |
125 | */ | |
126 | ||
127 | /* Module */ | |
128 | #define IBM_NAME "thinkpad" | |
129 | #define IBM_DESC "ThinkPad ACPI Extras" | |
130 | #define IBM_FILE IBM_NAME "_acpi" | |
131 | #define IBM_URL "http://ibm-acpi.sf.net/" | |
132 | #define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
133 | ||
134 | #define IBM_PROC_DIR "ibm" | |
135 | #define IBM_ACPI_EVENT_PREFIX "ibm" | |
136 | #define IBM_DRVR_NAME IBM_FILE | |
137 | #define IBM_HWMON_DRVR_NAME IBM_NAME "_hwmon" | |
138 | ||
139 | #define IBM_MAX_ACPI_ARGS 3 | |
140 | ||
141 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
142 | MODULE_DESCRIPTION(IBM_DESC); | |
143 | MODULE_VERSION(IBM_VERSION); | |
144 | MODULE_LICENSE("GPL"); | |
145 | ||
146 | /* Please remove this in year 2009 */ | |
147 | MODULE_ALIAS("ibm_acpi"); | |
148 | ||
149 | /* | |
150 | * DMI matching for module autoloading | |
151 | * | |
152 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
153 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
154 | * | |
155 | * Only models listed in thinkwiki will be supported, so add yours | |
156 | * if it is not there yet. | |
157 | */ | |
158 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
159 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
160 | ||
161 | /* Non-ancient thinkpads */ | |
162 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
163 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
164 | ||
165 | /* Ancient thinkpad BIOSes have to be identified by | |
166 | * BIOS type or model number, and there are far less | |
167 | * BIOS types than model numbers... */ | |
168 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
169 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
170 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
0c78039f HMH |
171 | |
172 | /* Debugging */ | |
b21a15f6 HMH |
173 | #define IBM_LOG IBM_FILE ": " |
174 | #define IBM_ERR KERN_ERR IBM_LOG | |
175 | #define IBM_NOTICE KERN_NOTICE IBM_LOG | |
176 | #define IBM_INFO KERN_INFO IBM_LOG | |
177 | #define IBM_DEBUG KERN_DEBUG IBM_LOG | |
178 | ||
0c78039f HMH |
179 | #define TPACPI_DBG_ALL 0xffff |
180 | #define TPACPI_DBG_ALL 0xffff | |
181 | #define TPACPI_DBG_INIT 0x0001 | |
182 | #define TPACPI_DBG_EXIT 0x0002 | |
183 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
184 | do { if (dbg_level & a_dbg_level) \ | |
185 | printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0) | |
186 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
187 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
188 | dbg_printk(a_dbg_level, format, ## arg) | |
189 | static const char *str_supported(int is_supported); | |
190 | #else | |
191 | #define vdbg_printk(a_dbg_level, format, arg...) | |
192 | #endif | |
193 | ||
b21a15f6 HMH |
194 | #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") |
195 | #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
196 | #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 197 | |
0c78039f HMH |
198 | |
199 | /**************************************************************************** | |
b21a15f6 | 200 | * Driver-wide structs and misc. variables |
0c78039f HMH |
201 | */ |
202 | ||
203 | struct ibm_struct; | |
204 | ||
205 | struct tp_acpi_drv_struct { | |
206 | const struct acpi_device_id *hid; | |
207 | struct acpi_driver *driver; | |
208 | ||
209 | void (*notify) (struct ibm_struct *, u32); | |
210 | acpi_handle *handle; | |
211 | u32 type; | |
212 | struct acpi_device *device; | |
213 | }; | |
214 | ||
215 | struct ibm_struct { | |
216 | char *name; | |
217 | ||
218 | int (*read) (char *); | |
219 | int (*write) (char *); | |
220 | void (*exit) (void); | |
221 | void (*resume) (void); | |
222 | ||
223 | struct list_head all_drivers; | |
224 | ||
225 | struct tp_acpi_drv_struct *acpi; | |
226 | ||
227 | struct { | |
228 | u8 acpi_driver_registered:1; | |
229 | u8 acpi_notify_installed:1; | |
230 | u8 proc_created:1; | |
231 | u8 init_called:1; | |
232 | u8 experimental:1; | |
233 | } flags; | |
234 | }; | |
235 | ||
236 | struct ibm_init_struct { | |
237 | char param[32]; | |
238 | ||
239 | int (*init) (struct ibm_init_struct *); | |
240 | struct ibm_struct *data; | |
241 | }; | |
242 | ||
243 | static struct { | |
244 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
245 | u32 bay_status:1; | |
246 | u32 bay_eject:1; | |
247 | u32 bay_status2:1; | |
248 | u32 bay_eject2:1; | |
249 | #endif | |
250 | u32 bluetooth:1; | |
251 | u32 hotkey:1; | |
252 | u32 hotkey_mask:1; | |
253 | u32 hotkey_wlsw:1; | |
254 | u32 light:1; | |
255 | u32 light_status:1; | |
256 | u32 bright_16levels:1; | |
257 | u32 wan:1; | |
258 | u32 fan_ctrl_status_undef:1; | |
259 | u32 input_device_registered:1; | |
260 | u32 platform_drv_registered:1; | |
261 | u32 platform_drv_attrs_registered:1; | |
262 | u32 sensors_pdrv_registered:1; | |
263 | u32 sensors_pdrv_attrs_registered:1; | |
264 | u32 sensors_pdev_attrs_registered:1; | |
265 | u32 hotkey_poll_active:1; | |
266 | } tp_features; | |
267 | ||
268 | struct thinkpad_id_data { | |
269 | unsigned int vendor; /* ThinkPad vendor: | |
270 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
271 | ||
272 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
273 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
274 | ||
275 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
276 | u16 ec_model; | |
277 | ||
278 | char *model_str; | |
279 | }; | |
0c78039f HMH |
280 | static struct thinkpad_id_data thinkpad_id; |
281 | ||
8fef502e HMH |
282 | static enum { |
283 | TPACPI_LIFE_INIT = 0, | |
284 | TPACPI_LIFE_RUNNING, | |
285 | TPACPI_LIFE_EXITING, | |
286 | } tpacpi_lifecycle; | |
287 | ||
b21a15f6 HMH |
288 | static int experimental; |
289 | static u32 dbg_level; | |
290 | ||
56b6aeb0 HMH |
291 | /**************************************************************************** |
292 | **************************************************************************** | |
293 | * | |
294 | * ACPI Helpers and device model | |
295 | * | |
296 | **************************************************************************** | |
297 | ****************************************************************************/ | |
298 | ||
299 | /************************************************************************* | |
300 | * ACPI basic handles | |
301 | */ | |
1da177e4 | 302 | |
94954cc6 | 303 | static acpi_handle root_handle; |
1da177e4 LT |
304 | |
305 | #define IBM_HANDLE(object, parent, paths...) \ | |
306 | static acpi_handle object##_handle; \ | |
307 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 308 | static char *object##_path; \ |
1da177e4 LT |
309 | static char *object##_paths[] = { paths } |
310 | ||
78f81cc4 BD |
311 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
312 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
313 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
314 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
315 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
316 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
317 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 318 | ); |
78f81cc4 | 319 | |
56b6aeb0 HMH |
320 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
321 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 322 | |
78f81cc4 BD |
323 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ |
324 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
325 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 326 | ); /* all others */ |
78f81cc4 BD |
327 | |
328 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
329 | "^HKEY", /* R30, R31 */ | |
330 | "HKEY", /* all others */ | |
56b6aeb0 | 331 | ); /* 570 */ |
78f81cc4 | 332 | |
78f81cc4 | 333 | |
56b6aeb0 HMH |
334 | /************************************************************************* |
335 | * ACPI helpers | |
a8b7a662 HMH |
336 | */ |
337 | ||
1da177e4 LT |
338 | static int acpi_evalf(acpi_handle handle, |
339 | void *res, char *method, char *fmt, ...) | |
340 | { | |
341 | char *fmt0 = fmt; | |
78f81cc4 BD |
342 | struct acpi_object_list params; |
343 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
344 | struct acpi_buffer result, *resultp; | |
345 | union acpi_object out_obj; | |
346 | acpi_status status; | |
347 | va_list ap; | |
348 | char res_type; | |
349 | int success; | |
350 | int quiet; | |
1da177e4 LT |
351 | |
352 | if (!*fmt) { | |
353 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | if (*fmt == 'q') { | |
358 | quiet = 1; | |
359 | fmt++; | |
360 | } else | |
361 | quiet = 0; | |
362 | ||
363 | res_type = *(fmt++); | |
364 | ||
365 | params.count = 0; | |
366 | params.pointer = &in_objs[0]; | |
367 | ||
368 | va_start(ap, fmt); | |
369 | while (*fmt) { | |
370 | char c = *(fmt++); | |
371 | switch (c) { | |
372 | case 'd': /* int */ | |
373 | in_objs[params.count].integer.value = va_arg(ap, int); | |
374 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
375 | break; | |
78f81cc4 | 376 | /* add more types as needed */ |
1da177e4 LT |
377 | default: |
378 | printk(IBM_ERR "acpi_evalf() called " | |
379 | "with invalid format character '%c'\n", c); | |
380 | return 0; | |
381 | } | |
382 | } | |
383 | va_end(ap); | |
384 | ||
78f81cc4 BD |
385 | if (res_type != 'v') { |
386 | result.length = sizeof(out_obj); | |
387 | result.pointer = &out_obj; | |
388 | resultp = &result; | |
389 | } else | |
390 | resultp = NULL; | |
1da177e4 | 391 | |
78f81cc4 | 392 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
393 | |
394 | switch (res_type) { | |
78f81cc4 | 395 | case 'd': /* int */ |
1da177e4 LT |
396 | if (res) |
397 | *(int *)res = out_obj.integer.value; | |
398 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
399 | break; | |
78f81cc4 | 400 | case 'v': /* void */ |
1da177e4 LT |
401 | success = status == AE_OK; |
402 | break; | |
78f81cc4 | 403 | /* add more types as needed */ |
1da177e4 LT |
404 | default: |
405 | printk(IBM_ERR "acpi_evalf() called " | |
406 | "with invalid format character '%c'\n", res_type); | |
407 | return 0; | |
408 | } | |
409 | ||
56b6aeb0 HMH |
410 | if (!success && !quiet) |
411 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
412 | method, fmt0, status); | |
413 | ||
414 | return success; | |
415 | } | |
416 | ||
56b6aeb0 HMH |
417 | static int acpi_ec_read(int i, u8 * p) |
418 | { | |
419 | int v; | |
420 | ||
421 | if (ecrd_handle) { | |
422 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
423 | return 0; | |
424 | *p = v; | |
425 | } else { | |
426 | if (ec_read(i, p) < 0) | |
427 | return 0; | |
428 | } | |
429 | ||
430 | return 1; | |
431 | } | |
432 | ||
433 | static int acpi_ec_write(int i, u8 v) | |
434 | { | |
435 | if (ecwr_handle) { | |
436 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
437 | return 0; | |
438 | } else { | |
439 | if (ec_write(i, v) < 0) | |
440 | return 0; | |
441 | } | |
442 | ||
443 | return 1; | |
444 | } | |
445 | ||
446 | static int _sta(acpi_handle handle) | |
447 | { | |
448 | int status; | |
449 | ||
450 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
451 | status = 0; | |
452 | ||
453 | return status; | |
454 | } | |
455 | ||
c9bea99c HMH |
456 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
457 | { | |
458 | if (!cmos_handle) | |
459 | return -ENXIO; | |
460 | ||
461 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
462 | return -EIO; | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
56b6aeb0 HMH |
467 | /************************************************************************* |
468 | * ACPI device model | |
469 | */ | |
470 | ||
f74a27d4 HMH |
471 | #define IBM_ACPIHANDLE_INIT(object) \ |
472 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
473 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) | |
474 | ||
8d376cd6 | 475 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
476 | acpi_handle *handle, acpi_handle parent, |
477 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
478 | { |
479 | int i; | |
480 | acpi_status status; | |
481 | ||
5ae930e6 HMH |
482 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
483 | name); | |
484 | ||
56b6aeb0 HMH |
485 | for (i = 0; i < num_paths; i++) { |
486 | status = acpi_get_handle(parent, paths[i], handle); | |
487 | if (ACPI_SUCCESS(status)) { | |
488 | *path = paths[i]; | |
5ae930e6 HMH |
489 | dbg_printk(TPACPI_DBG_INIT, |
490 | "Found ACPI handle %s for %s\n", | |
491 | *path, name); | |
56b6aeb0 HMH |
492 | return; |
493 | } | |
494 | } | |
495 | ||
5ae930e6 HMH |
496 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
497 | name); | |
56b6aeb0 HMH |
498 | *handle = NULL; |
499 | } | |
500 | ||
8d376cd6 | 501 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
502 | { |
503 | struct ibm_struct *ibm = data; | |
504 | ||
8fef502e HMH |
505 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
506 | return; | |
507 | ||
8d376cd6 | 508 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
509 | return; |
510 | ||
8d376cd6 | 511 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
512 | } |
513 | ||
8d376cd6 | 514 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
515 | { |
516 | acpi_status status; | |
5ae930e6 | 517 | int rc; |
56b6aeb0 | 518 | |
8d376cd6 HMH |
519 | BUG_ON(!ibm->acpi); |
520 | ||
521 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
522 | return 0; |
523 | ||
5ae930e6 | 524 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
525 | "setting up ACPI notify for %s\n", ibm->name); |
526 | ||
5ae930e6 HMH |
527 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
528 | if (rc < 0) { | |
529 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
530 | ibm->name, rc); | |
56b6aeb0 HMH |
531 | return -ENODEV; |
532 | } | |
533 | ||
8d376cd6 HMH |
534 | acpi_driver_data(ibm->acpi->device) = ibm; |
535 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
536 | IBM_ACPI_EVENT_PREFIX, |
537 | ibm->name); | |
56b6aeb0 | 538 | |
8d376cd6 HMH |
539 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
540 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
541 | if (ACPI_FAILURE(status)) { |
542 | if (status == AE_ALREADY_EXISTS) { | |
543 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
544 | ibm->name); | |
545 | } else { | |
546 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
547 | ibm->name, status); | |
548 | } | |
549 | return -ENODEV; | |
550 | } | |
8d376cd6 | 551 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
552 | return 0; |
553 | } | |
554 | ||
8d376cd6 | 555 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
556 | { |
557 | return 0; | |
558 | } | |
559 | ||
6700121b | 560 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 561 | { |
5ae930e6 | 562 | int rc; |
56b6aeb0 | 563 | |
fe08bc4b HMH |
564 | dbg_printk(TPACPI_DBG_INIT, |
565 | "registering %s as an ACPI driver\n", ibm->name); | |
566 | ||
8d376cd6 HMH |
567 | BUG_ON(!ibm->acpi); |
568 | ||
569 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
570 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
571 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
572 | return -ENOMEM; | |
56b6aeb0 HMH |
573 | } |
574 | ||
8d376cd6 HMH |
575 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
576 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 577 | |
8d376cd6 | 578 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 579 | |
5ae930e6 HMH |
580 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
581 | if (rc < 0) { | |
56b6aeb0 | 582 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 583 | ibm->name, rc); |
8d376cd6 HMH |
584 | kfree(ibm->acpi->driver); |
585 | ibm->acpi->driver = NULL; | |
5ae930e6 | 586 | } else if (!rc) |
8d376cd6 | 587 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 588 | |
5ae930e6 | 589 | return rc; |
56b6aeb0 HMH |
590 | } |
591 | ||
592 | ||
593 | /**************************************************************************** | |
594 | **************************************************************************** | |
595 | * | |
596 | * Procfs Helpers | |
597 | * | |
598 | **************************************************************************** | |
599 | ****************************************************************************/ | |
600 | ||
8d376cd6 HMH |
601 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
602 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
603 | { |
604 | struct ibm_struct *ibm = data; | |
605 | int len; | |
606 | ||
607 | if (!ibm || !ibm->read) | |
608 | return -EINVAL; | |
609 | ||
610 | len = ibm->read(page); | |
611 | if (len < 0) | |
612 | return len; | |
613 | ||
614 | if (len <= off + count) | |
615 | *eof = 1; | |
616 | *start = page + off; | |
617 | len -= off; | |
618 | if (len > count) | |
619 | len = count; | |
620 | if (len < 0) | |
621 | len = 0; | |
622 | ||
623 | return len; | |
624 | } | |
625 | ||
8d376cd6 HMH |
626 | static int dispatch_procfs_write(struct file *file, |
627 | const char __user * userbuf, | |
628 | unsigned long count, void *data) | |
56b6aeb0 HMH |
629 | { |
630 | struct ibm_struct *ibm = data; | |
631 | char *kernbuf; | |
632 | int ret; | |
633 | ||
634 | if (!ibm || !ibm->write) | |
635 | return -EINVAL; | |
636 | ||
637 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
638 | if (!kernbuf) | |
639 | return -ENOMEM; | |
1da177e4 | 640 | |
56b6aeb0 HMH |
641 | if (copy_from_user(kernbuf, userbuf, count)) { |
642 | kfree(kernbuf); | |
643 | return -EFAULT; | |
644 | } | |
1da177e4 | 645 | |
56b6aeb0 HMH |
646 | kernbuf[count] = 0; |
647 | strcat(kernbuf, ","); | |
648 | ret = ibm->write(kernbuf); | |
649 | if (ret == 0) | |
650 | ret = count; | |
1da177e4 | 651 | |
56b6aeb0 HMH |
652 | kfree(kernbuf); |
653 | ||
654 | return ret; | |
1da177e4 LT |
655 | } |
656 | ||
657 | static char *next_cmd(char **cmds) | |
658 | { | |
659 | char *start = *cmds; | |
660 | char *end; | |
661 | ||
662 | while ((end = strchr(start, ',')) && end == start) | |
663 | start = end + 1; | |
664 | ||
665 | if (!end) | |
666 | return NULL; | |
667 | ||
668 | *end = 0; | |
669 | *cmds = end + 1; | |
670 | return start; | |
671 | } | |
672 | ||
56b6aeb0 | 673 | |
54ae1501 HMH |
674 | /**************************************************************************** |
675 | **************************************************************************** | |
676 | * | |
7f5d1cd6 | 677 | * Device model: input, hwmon and platform |
54ae1501 HMH |
678 | * |
679 | **************************************************************************** | |
680 | ****************************************************************************/ | |
681 | ||
94954cc6 | 682 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 683 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 684 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 685 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 686 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 687 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 HMH |
688 | |
689 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
690 | { | |
691 | struct ibm_struct *ibm, *itmp; | |
692 | ||
693 | list_for_each_entry_safe(ibm, itmp, | |
694 | &tpacpi_all_drivers, | |
695 | all_drivers) { | |
696 | if (ibm->resume) | |
697 | (ibm->resume)(); | |
698 | } | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
54ae1501 HMH |
703 | static struct platform_driver tpacpi_pdriver = { |
704 | .driver = { | |
705 | .name = IBM_DRVR_NAME, | |
706 | .owner = THIS_MODULE, | |
707 | }, | |
e295e850 | 708 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
709 | }; |
710 | ||
7fd40029 HMH |
711 | static struct platform_driver tpacpi_hwmon_pdriver = { |
712 | .driver = { | |
713 | .name = IBM_HWMON_DRVR_NAME, | |
714 | .owner = THIS_MODULE, | |
715 | }, | |
716 | }; | |
54ae1501 | 717 | |
176750d6 | 718 | /************************************************************************* |
b21a15f6 | 719 | * sysfs support helpers |
176750d6 HMH |
720 | */ |
721 | ||
b21a15f6 HMH |
722 | struct attribute_set { |
723 | unsigned int members, max_members; | |
724 | struct attribute_group group; | |
176750d6 HMH |
725 | }; |
726 | ||
7252374a HMH |
727 | struct attribute_set_obj { |
728 | struct attribute_set s; | |
729 | struct attribute *a; | |
730 | } __attribute__((packed)); | |
731 | ||
732 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
733 | const char* name) | |
734 | { | |
735 | struct attribute_set_obj *sobj; | |
736 | ||
737 | if (max_members == 0) | |
738 | return NULL; | |
739 | ||
740 | /* Allocates space for implicit NULL at the end too */ | |
741 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
742 | max_members * sizeof(struct attribute *), | |
743 | GFP_KERNEL); | |
744 | if (!sobj) | |
745 | return NULL; | |
746 | sobj->s.max_members = max_members; | |
747 | sobj->s.group.attrs = &sobj->a; | |
748 | sobj->s.group.name = name; | |
749 | ||
750 | return &sobj->s; | |
751 | } | |
752 | ||
f74a27d4 HMH |
753 | #define destroy_attr_set(_set) \ |
754 | kfree(_set); | |
755 | ||
7252374a HMH |
756 | /* not multi-threaded safe, use it in a single thread per set */ |
757 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
758 | { | |
759 | if (!s || !attr) | |
760 | return -EINVAL; | |
761 | ||
762 | if (s->members >= s->max_members) | |
763 | return -ENOMEM; | |
764 | ||
765 | s->group.attrs[s->members] = attr; | |
766 | s->members++; | |
767 | ||
768 | return 0; | |
769 | } | |
770 | ||
771 | static int add_many_to_attr_set(struct attribute_set* s, | |
772 | struct attribute **attr, | |
773 | unsigned int count) | |
774 | { | |
775 | int i, res; | |
776 | ||
777 | for (i = 0; i < count; i++) { | |
778 | res = add_to_attr_set(s, attr[i]); | |
779 | if (res) | |
780 | return res; | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
787 | { | |
788 | sysfs_remove_group(kobj, &s->group); | |
789 | destroy_attr_set(s); | |
790 | } | |
791 | ||
f74a27d4 HMH |
792 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
793 | sysfs_create_group(_kobj, &_attr_set->group) | |
794 | ||
7252374a HMH |
795 | static int parse_strtoul(const char *buf, |
796 | unsigned long max, unsigned long *value) | |
797 | { | |
798 | char *endp; | |
799 | ||
32afbf07 HMH |
800 | while (*buf && isspace(*buf)) |
801 | buf++; | |
7252374a HMH |
802 | *value = simple_strtoul(buf, &endp, 0); |
803 | while (*endp && isspace(*endp)) | |
804 | endp++; | |
805 | if (*endp || *value > max) | |
806 | return -EINVAL; | |
807 | ||
808 | return 0; | |
809 | } | |
810 | ||
56b6aeb0 | 811 | /************************************************************************* |
b21a15f6 | 812 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
813 | */ |
814 | ||
b21a15f6 HMH |
815 | /* interface_version --------------------------------------------------- */ |
816 | static ssize_t tpacpi_driver_interface_version_show( | |
817 | struct device_driver *drv, | |
818 | char *buf) | |
1da177e4 | 819 | { |
b21a15f6 HMH |
820 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
821 | } | |
822 | ||
823 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
824 | tpacpi_driver_interface_version_show, NULL); | |
825 | ||
826 | /* debug_level --------------------------------------------------------- */ | |
827 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
828 | char *buf) | |
829 | { | |
830 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
831 | } | |
832 | ||
833 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
834 | const char *buf, size_t count) | |
835 | { | |
836 | unsigned long t; | |
837 | ||
838 | if (parse_strtoul(buf, 0xffff, &t)) | |
839 | return -EINVAL; | |
840 | ||
841 | dbg_level = t; | |
842 | ||
843 | return count; | |
844 | } | |
845 | ||
846 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
847 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
848 | ||
849 | /* version ------------------------------------------------------------- */ | |
850 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
851 | char *buf) | |
852 | { | |
853 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
854 | } | |
855 | ||
856 | static DRIVER_ATTR(version, S_IRUGO, | |
857 | tpacpi_driver_version_show, NULL); | |
858 | ||
859 | /* --------------------------------------------------------------------- */ | |
860 | ||
861 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
862 | &driver_attr_debug_level, &driver_attr_version, | |
863 | &driver_attr_interface_version, | |
864 | }; | |
865 | ||
866 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
867 | { | |
868 | int i, res; | |
869 | ||
870 | i = 0; | |
871 | res = 0; | |
872 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
873 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
874 | i++; | |
875 | } | |
876 | ||
877 | return res; | |
878 | } | |
879 | ||
880 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
881 | { | |
882 | int i; | |
883 | ||
884 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
885 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
886 | } | |
887 | ||
888 | /**************************************************************************** | |
889 | **************************************************************************** | |
890 | * | |
891 | * Subdrivers | |
892 | * | |
893 | **************************************************************************** | |
894 | ****************************************************************************/ | |
895 | ||
896 | /************************************************************************* | |
897 | * thinkpad-acpi init subdriver | |
898 | */ | |
899 | ||
900 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
901 | { | |
902 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
903 | printk(IBM_INFO "%s\n", IBM_URL); | |
904 | ||
905 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", | |
906 | (thinkpad_id.bios_version_str) ? | |
907 | thinkpad_id.bios_version_str : "unknown", | |
908 | (thinkpad_id.ec_version_str) ? | |
909 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
910 | |
911 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
912 | printk(IBM_INFO "%s %s\n", | |
913 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
914 | "IBM" : ((thinkpad_id.vendor == | |
915 | PCI_VENDOR_ID_LENOVO) ? | |
916 | "Lenovo" : "Unknown vendor"), | |
917 | thinkpad_id.model_str); | |
3945ac36 | 918 | |
1da177e4 LT |
919 | return 0; |
920 | } | |
921 | ||
643f12db | 922 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
923 | { |
924 | int len = 0; | |
925 | ||
926 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
927 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
928 | ||
929 | return len; | |
930 | } | |
931 | ||
a5763f22 HMH |
932 | static struct ibm_struct thinkpad_acpi_driver_data = { |
933 | .name = "driver", | |
934 | .read = thinkpad_acpi_driver_read, | |
935 | }; | |
936 | ||
56b6aeb0 HMH |
937 | /************************************************************************* |
938 | * Hotkey subdriver | |
939 | */ | |
940 | ||
f74a27d4 HMH |
941 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
942 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
943 | TP_ACPI_HOTKEYSCAN_FNF2, | |
944 | TP_ACPI_HOTKEYSCAN_FNF3, | |
945 | TP_ACPI_HOTKEYSCAN_FNF4, | |
946 | TP_ACPI_HOTKEYSCAN_FNF5, | |
947 | TP_ACPI_HOTKEYSCAN_FNF6, | |
948 | TP_ACPI_HOTKEYSCAN_FNF7, | |
949 | TP_ACPI_HOTKEYSCAN_FNF8, | |
950 | TP_ACPI_HOTKEYSCAN_FNF9, | |
951 | TP_ACPI_HOTKEYSCAN_FNF10, | |
952 | TP_ACPI_HOTKEYSCAN_FNF11, | |
953 | TP_ACPI_HOTKEYSCAN_FNF12, | |
954 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
955 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
956 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
957 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
958 | TP_ACPI_HOTKEYSCAN_FNEND, | |
959 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
960 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
961 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
962 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
963 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
964 | TP_ACPI_HOTKEYSCAN_MUTE, | |
965 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
966 | }; | |
967 | ||
01e88f25 HMH |
968 | enum { /* Keys available through NVRAM polling */ |
969 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
970 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
971 | }; | |
972 | ||
973 | enum { /* Positions of some of the keys in hotkey masks */ | |
974 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
975 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
976 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
977 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
978 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
979 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
980 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
981 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
982 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
983 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
984 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
985 | }; | |
986 | ||
987 | enum { /* NVRAM to ACPI HKEY group map */ | |
988 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
989 | TP_ACPI_HKEY_ZOOM_MASK | | |
990 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
991 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
992 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
993 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
994 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
995 | TP_ACPI_HKEY_VOLDWN_MASK | | |
996 | TP_ACPI_HKEY_MUTE_MASK, | |
997 | }; | |
998 | ||
999 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1000 | struct tp_nvram_state { | |
1001 | u16 thinkpad_toggle:1; | |
1002 | u16 zoom_toggle:1; | |
1003 | u16 display_toggle:1; | |
1004 | u16 thinklight_toggle:1; | |
1005 | u16 hibernate_toggle:1; | |
1006 | u16 displayexp_toggle:1; | |
1007 | u16 display_state:1; | |
1008 | u16 brightness_toggle:1; | |
1009 | u16 volume_toggle:1; | |
1010 | u16 mute:1; | |
1011 | ||
1012 | u8 brightness_level; | |
1013 | u8 volume_level; | |
1014 | }; | |
1015 | ||
1016 | static struct task_struct *tpacpi_hotkey_task; | |
1017 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1018 | static int hotkey_poll_freq = 10; /* Hz */ | |
1019 | static struct mutex hotkey_thread_mutex; | |
1020 | static struct mutex hotkey_thread_data_mutex; | |
1021 | static unsigned int hotkey_config_change; | |
1022 | ||
1023 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1024 | ||
1025 | #define hotkey_source_mask 0U | |
1026 | ||
1027 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1028 | ||
f74a27d4 HMH |
1029 | static struct mutex hotkey_mutex; |
1030 | ||
78f81cc4 | 1031 | static int hotkey_orig_status; |
ae92bd17 | 1032 | static u32 hotkey_orig_mask; |
9b010de5 | 1033 | static u32 hotkey_all_mask; |
6a38abbf | 1034 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1035 | static u32 hotkey_mask; |
6a38abbf | 1036 | |
b21a15f6 HMH |
1037 | static unsigned int hotkey_report_mode; |
1038 | ||
edf0e0e5 | 1039 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1040 | |
94954cc6 | 1041 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1042 | |
01e88f25 HMH |
1043 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1044 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
1045 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1046 | hotkey_config_change++; | |
1047 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
1048 | mutex_unlock(&hotkey_thread_data_mutex); | |
1049 | #else | |
1050 | #define HOTKEY_CONFIG_CRITICAL_START | |
1051 | #define HOTKEY_CONFIG_CRITICAL_END | |
1052 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1053 | ||
74941a69 HMH |
1054 | static int hotkey_get_wlsw(int *status) |
1055 | { | |
1056 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1057 | return -EIO; | |
1058 | return 0; | |
1059 | } | |
1060 | ||
b2c985e7 HMH |
1061 | /* |
1062 | * Call with hotkey_mutex held | |
1063 | */ | |
1064 | static int hotkey_mask_get(void) | |
1065 | { | |
01e88f25 HMH |
1066 | u32 m = 0; |
1067 | ||
b2c985e7 | 1068 | if (tp_features.hotkey_mask) { |
01e88f25 | 1069 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1070 | return -EIO; |
1071 | } | |
01e88f25 | 1072 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1073 | |
1074 | return 0; | |
1075 | } | |
1076 | ||
1077 | /* | |
1078 | * Call with hotkey_mutex held | |
1079 | */ | |
1080 | static int hotkey_mask_set(u32 mask) | |
1081 | { | |
1082 | int i; | |
1083 | int rc = 0; | |
1084 | ||
1085 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1086 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1087 | for (i = 0; i < 32; i++) { |
1088 | u32 m = 1 << i; | |
01e88f25 HMH |
1089 | /* enable in firmware mask only keys not in NVRAM |
1090 | * mode, but enable the key in the cached hotkey_mask | |
1091 | * regardless of mode, or the key will end up | |
1092 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1093 | if (!acpi_evalf(hkey_handle, |
1094 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1095 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1096 | rc = -EIO; |
1097 | break; | |
1098 | } else { | |
1099 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1100 | } | |
1101 | } | |
01e88f25 | 1102 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1103 | |
1104 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1105 | if (!hotkey_mask_get() && !rc && |
1106 | (hotkey_mask & ~hotkey_source_mask) != | |
1107 | (mask & ~hotkey_source_mask)) { | |
b2c985e7 HMH |
1108 | printk(IBM_NOTICE |
1109 | "requested hot key mask 0x%08x, but " | |
1110 | "firmware forced it to 0x%08x\n", | |
1111 | mask, hotkey_mask); | |
1112 | } | |
01e88f25 HMH |
1113 | } else { |
1114 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1115 | HOTKEY_CONFIG_CRITICAL_START | |
1116 | hotkey_mask = mask & hotkey_source_mask; | |
1117 | HOTKEY_CONFIG_CRITICAL_END | |
1118 | hotkey_mask_get(); | |
1119 | if (hotkey_mask != mask) { | |
1120 | printk(IBM_NOTICE | |
1121 | "requested hot key mask 0x%08x, " | |
1122 | "forced to 0x%08x (NVRAM poll mask is " | |
1123 | "0x%08x): no firmware mask support\n", | |
1124 | mask, hotkey_mask, hotkey_source_mask); | |
1125 | } | |
1126 | #else | |
1127 | hotkey_mask_get(); | |
1128 | rc = -ENXIO; | |
1129 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1130 | } |
1131 | ||
1132 | return rc; | |
1133 | } | |
1134 | ||
1135 | static int hotkey_status_get(int *status) | |
1136 | { | |
1137 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1138 | return -EIO; | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | static int hotkey_status_set(int status) | |
1144 | { | |
1145 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1146 | return -EIO; | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
b7c8c200 HMH |
1151 | static void tpacpi_input_send_radiosw(void) |
1152 | { | |
1153 | int wlsw; | |
1154 | ||
1155 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1156 | ||
1157 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { | |
1158 | input_report_switch(tpacpi_inputdev, | |
1159 | SW_RADIO, !!wlsw); | |
1160 | input_sync(tpacpi_inputdev); | |
1161 | } | |
1162 | ||
1163 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1164 | } | |
1165 | ||
1166 | static void tpacpi_input_send_key(unsigned int scancode) | |
1167 | { | |
1168 | unsigned int keycode; | |
1169 | ||
1170 | keycode = hotkey_keycode_map[scancode]; | |
1171 | ||
1172 | if (keycode != KEY_RESERVED) { | |
1173 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1174 | ||
1175 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1176 | if (keycode == KEY_UNKNOWN) | |
1177 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1178 | scancode); | |
1179 | input_sync(tpacpi_inputdev); | |
1180 | ||
1181 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1182 | if (keycode == KEY_UNKNOWN) | |
1183 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1184 | scancode); | |
1185 | input_sync(tpacpi_inputdev); | |
1186 | ||
1187 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1188 | } | |
1189 | } | |
1190 | ||
01e88f25 HMH |
1191 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1192 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1193 | ||
1194 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1195 | { | |
1196 | tpacpi_input_send_key(scancode); | |
1197 | if (hotkey_report_mode < 2) { | |
1198 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1199 | 0x80, 0x1001 + scancode); | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1204 | { | |
1205 | u8 d; | |
1206 | ||
1207 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1208 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1209 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1210 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1211 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1212 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1213 | } | |
1214 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1215 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1216 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1217 | } | |
1218 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1219 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1220 | n->displayexp_toggle = | |
1221 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1222 | } | |
1223 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1224 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1225 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1226 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1227 | n->brightness_toggle = | |
1228 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1229 | } | |
1230 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1231 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1232 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1233 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1234 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1235 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
1240 | do { if ((mask & (1 << __scancode)) && oldn->__member != newn->__member) \ | |
1241 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1242 | ||
1243 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1244 | do { if (mask & (1 << __scancode)) \ | |
1245 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1246 | ||
1247 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
1248 | struct tp_nvram_state *newn, | |
1249 | u32 mask) | |
1250 | { | |
1251 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1252 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1253 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1254 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1255 | ||
1256 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1257 | ||
1258 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1259 | ||
1260 | /* handle volume */ | |
1261 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1262 | if (oldn->mute != newn->mute) { | |
1263 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1264 | } | |
1265 | if (oldn->volume_level > newn->volume_level) { | |
1266 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1267 | } else if (oldn->volume_level < newn->volume_level) { | |
1268 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1269 | } else if (oldn->mute == newn->mute) { | |
1270 | /* repeated key presses that didn't change state */ | |
1271 | if (newn->mute) { | |
1272 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1273 | } else if (newn->volume_level != 0) { | |
1274 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1275 | } else { | |
1276 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* handle brightness */ | |
1282 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1283 | if (oldn->brightness_level < newn->brightness_level) { | |
1284 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1285 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1286 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1287 | } else { | |
1288 | /* repeated key presses that didn't change state */ | |
1289 | if (newn->brightness_level != 0) { | |
1290 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1291 | } else { | |
1292 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1293 | } | |
1294 | } | |
1295 | } | |
1296 | } | |
1297 | ||
1298 | #undef TPACPI_COMPARE_KEY | |
1299 | #undef TPACPI_MAY_SEND_KEY | |
1300 | ||
1301 | static int hotkey_kthread(void *data) | |
1302 | { | |
1303 | struct tp_nvram_state s[2]; | |
1304 | u32 mask; | |
1305 | unsigned int si, so; | |
1306 | unsigned long t; | |
1307 | unsigned int change_detector, must_reset; | |
1308 | ||
1309 | mutex_lock(&hotkey_thread_mutex); | |
1310 | ||
1311 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1312 | goto exit; | |
1313 | ||
1314 | set_freezable(); | |
1315 | ||
1316 | so = 0; | |
1317 | si = 1; | |
1318 | t = 0; | |
1319 | ||
1320 | /* Initial state for compares */ | |
1321 | mutex_lock(&hotkey_thread_data_mutex); | |
1322 | change_detector = hotkey_config_change; | |
1323 | mask = hotkey_source_mask & hotkey_mask; | |
1324 | mutex_unlock(&hotkey_thread_data_mutex); | |
1325 | hotkey_read_nvram(&s[so], mask); | |
1326 | ||
1327 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1328 | if (t == 0) | |
1329 | t = 1000/hotkey_poll_freq; | |
1330 | t = msleep_interruptible(t); | |
1331 | if (unlikely(kthread_should_stop())) | |
1332 | break; | |
1333 | must_reset = try_to_freeze(); | |
1334 | if (t > 0 && !must_reset) | |
1335 | continue; | |
1336 | ||
1337 | mutex_lock(&hotkey_thread_data_mutex); | |
1338 | if (must_reset || hotkey_config_change != change_detector) { | |
1339 | /* forget old state on thaw or config change */ | |
1340 | si = so; | |
1341 | t = 0; | |
1342 | change_detector = hotkey_config_change; | |
1343 | } | |
1344 | mask = hotkey_source_mask & hotkey_mask; | |
1345 | mutex_unlock(&hotkey_thread_data_mutex); | |
1346 | ||
1347 | if (likely(mask)) { | |
1348 | hotkey_read_nvram(&s[si], mask); | |
1349 | if (likely(si != so)) { | |
1350 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
1351 | mask); | |
1352 | } | |
1353 | } | |
1354 | ||
1355 | so = si; | |
1356 | si ^= 1; | |
1357 | } | |
1358 | ||
1359 | exit: | |
1360 | mutex_unlock(&hotkey_thread_mutex); | |
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | static void hotkey_poll_stop_sync(void) | |
1365 | { | |
1366 | if (tpacpi_hotkey_task) { | |
1367 | if (frozen(tpacpi_hotkey_task) || | |
1368 | freezing(tpacpi_hotkey_task)) | |
1369 | thaw_process(tpacpi_hotkey_task); | |
1370 | ||
1371 | kthread_stop(tpacpi_hotkey_task); | |
1372 | tpacpi_hotkey_task = NULL; | |
1373 | mutex_lock(&hotkey_thread_mutex); | |
1374 | /* at this point, the thread did exit */ | |
1375 | mutex_unlock(&hotkey_thread_mutex); | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | /* call with hotkey_mutex held */ | |
1380 | static void hotkey_poll_setup(int may_warn) | |
1381 | { | |
1382 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1383 | hotkey_poll_freq > 0 && | |
1384 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1385 | if (!tpacpi_hotkey_task) { | |
1386 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
1387 | NULL, IBM_FILE "d"); | |
1388 | if (IS_ERR(tpacpi_hotkey_task)) { | |
1389 | tpacpi_hotkey_task = NULL; | |
1390 | printk(IBM_ERR "could not create kernel thread " | |
1391 | "for hotkey polling\n"); | |
1392 | } | |
1393 | } | |
1394 | } else { | |
1395 | hotkey_poll_stop_sync(); | |
1396 | if (may_warn && | |
1397 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
1398 | printk(IBM_NOTICE "hot keys 0x%08x require polling, " | |
1399 | "which is currently disabled\n", | |
1400 | hotkey_source_mask); | |
1401 | } | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | static void hotkey_poll_setup_safe(int may_warn) | |
1406 | { | |
1407 | mutex_lock(&hotkey_mutex); | |
1408 | hotkey_poll_setup(may_warn); | |
1409 | mutex_unlock(&hotkey_mutex); | |
1410 | } | |
1411 | ||
1412 | static int hotkey_inputdev_open(struct input_dev *dev) | |
1413 | { | |
1414 | switch (tpacpi_lifecycle) { | |
1415 | case TPACPI_LIFE_INIT: | |
1416 | /* | |
1417 | * hotkey_init will call hotkey_poll_setup_safe | |
1418 | * at the appropriate moment | |
1419 | */ | |
1420 | return 0; | |
1421 | case TPACPI_LIFE_EXITING: | |
1422 | return -EBUSY; | |
1423 | case TPACPI_LIFE_RUNNING: | |
1424 | hotkey_poll_setup_safe(0); | |
1425 | return 0; | |
1426 | } | |
1427 | ||
1428 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1429 | BUG(); | |
1430 | return -EBUSY; | |
1431 | } | |
1432 | ||
1433 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1434 | { | |
1435 | /* disable hotkey polling when possible */ | |
1436 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1437 | hotkey_poll_setup_safe(0); | |
1438 | } | |
1439 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1440 | ||
a0416420 HMH |
1441 | /* sysfs hotkey enable ------------------------------------------------- */ |
1442 | static ssize_t hotkey_enable_show(struct device *dev, | |
1443 | struct device_attribute *attr, | |
1444 | char *buf) | |
1445 | { | |
ae92bd17 | 1446 | int res, status; |
a0416420 | 1447 | |
b2c985e7 | 1448 | res = hotkey_status_get(&status); |
a0416420 HMH |
1449 | if (res) |
1450 | return res; | |
1451 | ||
1452 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1453 | } | |
1454 | ||
1455 | static ssize_t hotkey_enable_store(struct device *dev, | |
1456 | struct device_attribute *attr, | |
1457 | const char *buf, size_t count) | |
1458 | { | |
1459 | unsigned long t; | |
b2c985e7 | 1460 | int res; |
a0416420 HMH |
1461 | |
1462 | if (parse_strtoul(buf, 1, &t)) | |
1463 | return -EINVAL; | |
1464 | ||
b2c985e7 | 1465 | res = hotkey_status_set(t); |
a0416420 HMH |
1466 | |
1467 | return (res) ? res : count; | |
1468 | } | |
1469 | ||
1470 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1471 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1472 | hotkey_enable_show, hotkey_enable_store); |
1473 | ||
1474 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1475 | static ssize_t hotkey_mask_show(struct device *dev, | |
1476 | struct device_attribute *attr, | |
1477 | char *buf) | |
1478 | { | |
b2c985e7 | 1479 | int res; |
a0416420 | 1480 | |
b2c985e7 HMH |
1481 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1482 | return -ERESTARTSYS; | |
1483 | res = hotkey_mask_get(); | |
1484 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1485 | |
b2c985e7 HMH |
1486 | return (res)? |
1487 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1488 | } |
1489 | ||
1490 | static ssize_t hotkey_mask_store(struct device *dev, | |
1491 | struct device_attribute *attr, | |
1492 | const char *buf, size_t count) | |
1493 | { | |
1494 | unsigned long t; | |
b2c985e7 | 1495 | int res; |
a0416420 | 1496 | |
ae92bd17 | 1497 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1498 | return -EINVAL; |
1499 | ||
b2c985e7 HMH |
1500 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1501 | return -ERESTARTSYS; | |
1502 | ||
1503 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1504 | |
1505 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1506 | hotkey_poll_setup(1); | |
1507 | #endif | |
1508 | ||
b2c985e7 | 1509 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1510 | |
1511 | return (res) ? res : count; | |
1512 | } | |
1513 | ||
1514 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1515 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1516 | hotkey_mask_show, hotkey_mask_store); |
1517 | ||
1518 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1519 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1520 | struct device_attribute *attr, | |
1521 | char *buf) | |
1522 | { | |
1523 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1524 | } | |
1525 | ||
1526 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1527 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1528 | |
1529 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1530 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1531 | struct device_attribute *attr, | |
1532 | char *buf) | |
1533 | { | |
ae92bd17 | 1534 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1535 | } |
1536 | ||
1537 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1538 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1539 | |
9b010de5 HMH |
1540 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1541 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1542 | struct device_attribute *attr, | |
1543 | char *buf) | |
1544 | { | |
01e88f25 HMH |
1545 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1546 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1547 | } |
1548 | ||
1549 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1550 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1551 | ||
1552 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1553 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1554 | struct device_attribute *attr, | |
1555 | char *buf) | |
1556 | { | |
1557 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1558 | (hotkey_all_mask | hotkey_source_mask) |
1559 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1560 | } |
1561 | ||
1562 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1563 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1564 | hotkey_recommended_mask_show, NULL); | |
1565 | ||
01e88f25 HMH |
1566 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1567 | ||
1568 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1569 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1570 | struct device_attribute *attr, | |
1571 | char *buf) | |
1572 | { | |
1573 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1574 | } | |
1575 | ||
1576 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1577 | struct device_attribute *attr, | |
1578 | const char *buf, size_t count) | |
1579 | { | |
1580 | unsigned long t; | |
1581 | ||
1582 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1583 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1584 | return -EINVAL; | |
1585 | ||
1586 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1587 | return -ERESTARTSYS; | |
1588 | ||
1589 | HOTKEY_CONFIG_CRITICAL_START | |
1590 | hotkey_source_mask = t; | |
1591 | HOTKEY_CONFIG_CRITICAL_END | |
1592 | ||
1593 | hotkey_poll_setup(1); | |
1594 | ||
1595 | mutex_unlock(&hotkey_mutex); | |
1596 | ||
1597 | return count; | |
1598 | } | |
1599 | ||
1600 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1601 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1602 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1603 | ||
1604 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1605 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1606 | struct device_attribute *attr, | |
1607 | char *buf) | |
1608 | { | |
1609 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1610 | } | |
1611 | ||
1612 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1613 | struct device_attribute *attr, | |
1614 | const char *buf, size_t count) | |
1615 | { | |
1616 | unsigned long t; | |
1617 | ||
1618 | if (parse_strtoul(buf, 25, &t)) | |
1619 | return -EINVAL; | |
1620 | ||
1621 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1622 | return -ERESTARTSYS; | |
1623 | ||
1624 | hotkey_poll_freq = t; | |
1625 | ||
1626 | hotkey_poll_setup(1); | |
1627 | mutex_unlock(&hotkey_mutex); | |
1628 | ||
1629 | return count; | |
1630 | } | |
1631 | ||
1632 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1633 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1634 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1635 | ||
1636 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1637 | ||
74941a69 HMH |
1638 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
1639 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
1640 | struct device_attribute *attr, | |
1641 | char *buf) | |
1642 | { | |
1643 | int res, s; | |
1644 | res = hotkey_get_wlsw(&s); | |
1645 | if (res < 0) | |
1646 | return res; | |
1647 | ||
1648 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1649 | } | |
1650 | ||
1651 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1652 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1653 | ||
ff80f137 HMH |
1654 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1655 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1656 | struct device_attribute *attr, | |
1657 | char *buf) | |
1658 | { | |
1659 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1660 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1661 | } | |
1662 | ||
1663 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1664 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1665 | ||
a0416420 HMH |
1666 | /* --------------------------------------------------------------------- */ |
1667 | ||
ff80f137 HMH |
1668 | static struct attribute *hotkey_attributes[] __initdata = { |
1669 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1670 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1671 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1672 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1673 | &dev_attr_hotkey_mask.attr, | |
1674 | &dev_attr_hotkey_all_mask.attr, | |
1675 | &dev_attr_hotkey_recommended_mask.attr, | |
1676 | &dev_attr_hotkey_source_mask.attr, | |
1677 | &dev_attr_hotkey_poll_freq.attr, | |
1678 | #endif | |
ff80f137 HMH |
1679 | }; |
1680 | ||
1681 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1682 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1683 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1684 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1685 | &dev_attr_hotkey_all_mask.attr, |
1686 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1687 | #endif |
a0416420 HMH |
1688 | }; |
1689 | ||
a5763f22 | 1690 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1691 | { |
0f089147 HMH |
1692 | /* Requirements for changing the default keymaps: |
1693 | * | |
1694 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1695 | * good reasons. Do not change them unless you have deep | |
1696 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1697 | * the various ThinkPad models. The driver behaves | |
1698 | * differently for KEY_RESERVED: such keys have their | |
1699 | * hot key mask *unset* in mask_recommended, and also | |
1700 | * in the initial hot key mask programmed into the | |
1701 | * firmware at driver load time, which means the firm- | |
1702 | * ware may react very differently if you change them to | |
1703 | * something else; | |
1704 | * | |
1705 | * 2. You must be subscribed to the linux-thinkpad and | |
1706 | * ibm-acpi-devel mailing lists, and you should read the | |
1707 | * list archives since 2007 if you want to change the | |
1708 | * keymaps. This requirement exists so that you will | |
1709 | * know the past history of problems with the thinkpad- | |
1710 | * acpi driver keymaps, and also that you will be | |
1711 | * listening to any bug reports; | |
1712 | * | |
1713 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1714 | * for merging, *ever*. Send them to the linux-acpi | |
1715 | * mailinglist for comments. Merging is to be done only | |
1716 | * through acpi-test and the ACPI maintainer. | |
1717 | * | |
1718 | * If the above is too much to ask, don't change the keymap. | |
1719 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1720 | */ | |
edf0e0e5 HMH |
1721 | static u16 ibm_keycode_map[] __initdata = { |
1722 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1723 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1724 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1725 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1726 | |
1727 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1728 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1729 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1730 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1731 | |
1732 | /* brightness: firmware always reacts to them, unless | |
1733 | * X.org did some tricks in the radeon BIOS scratch | |
1734 | * registers of *some* models */ | |
e927c08d | 1735 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1736 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1737 | |
1738 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1739 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1740 | |
edf0e0e5 HMH |
1741 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1742 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1743 | |
1744 | /* Volume: firmware always react to it and reprograms | |
1745 | * the built-in *extra* mixer. Never map it to control | |
1746 | * another mixer by default. */ | |
e927c08d HMH |
1747 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1748 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1749 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1750 | |
edf0e0e5 | 1751 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1752 | |
edf0e0e5 HMH |
1753 | /* (assignments unknown, please report if found) */ |
1754 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1755 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1756 | }; | |
1757 | static u16 lenovo_keycode_map[] __initdata = { | |
1758 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1759 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1760 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1761 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1762 | |
1763 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1764 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1765 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1766 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1767 | |
56a185b4 | 1768 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1769 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1770 | |
edf0e0e5 | 1771 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1772 | |
edf0e0e5 HMH |
1773 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1774 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1775 | |
1776 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1777 | * react to it and reprograms the built-in *extra* mixer. | |
1778 | * Never map it to control another mixer by default. | |
1779 | * | |
1780 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1781 | * these over the regular keyboard, so these are no-ops, | |
1782 | * but there are still weird bugs re. MUTE, so do not | |
1783 | * change unless you get test reports from all Lenovo | |
1784 | * models. May cause the BIOS to interfere with the | |
1785 | * HDA mixer. | |
1786 | */ | |
e927c08d HMH |
1787 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1788 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1789 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1790 | |
edf0e0e5 | 1791 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1792 | |
edf0e0e5 HMH |
1793 | /* (assignments unknown, please report if found) */ |
1794 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1795 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1796 | }; | |
1797 | ||
1798 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1799 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1800 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1801 | ||
6a38abbf | 1802 | int res, i; |
74941a69 | 1803 | int status; |
1b6521dc | 1804 | int hkeyv; |
b86c4722 | 1805 | |
fe08bc4b HMH |
1806 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1807 | ||
6a38abbf | 1808 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
1809 | BUG_ON(tpacpi_inputdev->open != NULL || |
1810 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 1811 | |
8d376cd6 | 1812 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1813 | mutex_init(&hotkey_mutex); |
5fba344c | 1814 | |
01e88f25 HMH |
1815 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1816 | mutex_init(&hotkey_thread_mutex); | |
1817 | mutex_init(&hotkey_thread_data_mutex); | |
1818 | #endif | |
1819 | ||
56b6aeb0 | 1820 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1821 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1822 | |
fe08bc4b | 1823 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1824 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1825 | |
d8fd94d9 | 1826 | if (tp_features.hotkey) { |
01e88f25 | 1827 | hotkey_dev_attributes = create_attr_set(10, NULL); |
a0416420 HMH |
1828 | if (!hotkey_dev_attributes) |
1829 | return -ENOMEM; | |
ff80f137 HMH |
1830 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1831 | hotkey_attributes, | |
1832 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1833 | if (res) |
1834 | return res; | |
1835 | ||
56b6aeb0 | 1836 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1837 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1838 | for HKEY interface version 0x100 */ | |
1839 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1840 | if ((hkeyv >> 8) != 1) { | |
1841 | printk(IBM_ERR "unknown version of the " | |
1842 | "HKEY interface: 0x%x\n", hkeyv); | |
1843 | printk(IBM_ERR "please report this to %s\n", | |
1844 | IBM_MAIL); | |
1845 | } else { | |
1846 | /* | |
1847 | * MHKV 0x100 in A31, R40, R40e, | |
1848 | * T4x, X31, and later | |
01e88f25 | 1849 | */ |
1b6521dc HMH |
1850 | tp_features.hotkey_mask = 1; |
1851 | } | |
1852 | } | |
56b6aeb0 | 1853 | |
fe08bc4b | 1854 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1855 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1856 | |
9b010de5 | 1857 | if (tp_features.hotkey_mask) { |
9b010de5 | 1858 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc HMH |
1859 | "MHKA", "qd")) { |
1860 | printk(IBM_ERR | |
1861 | "missing MHKA handler, " | |
1862 | "please report this to %s\n", | |
1863 | IBM_MAIL); | |
9b010de5 | 1864 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 1865 | } |
9b010de5 HMH |
1866 | } |
1867 | ||
01e88f25 HMH |
1868 | /* hotkey_source_mask *must* be zero for |
1869 | * the first hotkey_mask_get */ | |
b2c985e7 | 1870 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1871 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1872 | res = hotkey_mask_get(); |
1873 | hotkey_orig_mask = hotkey_mask; | |
1874 | if (!res) { | |
1875 | res = add_many_to_attr_set( | |
1876 | hotkey_dev_attributes, | |
1877 | hotkey_mask_attributes, | |
1878 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1879 | } | |
a0416420 | 1880 | } |
74941a69 | 1881 | |
01e88f25 HMH |
1882 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1883 | if (tp_features.hotkey_mask) { | |
1884 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
1885 | & ~hotkey_all_mask; | |
1886 | } else { | |
1887 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
1888 | } | |
1889 | ||
1890 | vdbg_printk(TPACPI_DBG_INIT, | |
1891 | "hotkey source mask 0x%08x, polling freq %d\n", | |
1892 | hotkey_source_mask, hotkey_poll_freq); | |
1893 | #endif | |
1894 | ||
74941a69 HMH |
1895 | /* Not all thinkpads have a hardware radio switch */ |
1896 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1897 | tp_features.hotkey_wlsw = 1; | |
1898 | printk(IBM_INFO | |
1899 | "radio switch found; radios are %s\n", | |
1900 | enabled(status, 0)); | |
1901 | res = add_to_attr_set(hotkey_dev_attributes, | |
1902 | &dev_attr_hotkey_radio_sw.attr); | |
1903 | } | |
1904 | ||
a0416420 HMH |
1905 | if (!res) |
1906 | res = register_attr_set_with_sysfs( | |
1907 | hotkey_dev_attributes, | |
1908 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1909 | if (res) |
1910 | return res; | |
6a38abbf | 1911 | |
edf0e0e5 HMH |
1912 | /* Set up key map */ |
1913 | ||
1914 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1915 | GFP_KERNEL); | |
1916 | if (!hotkey_keycode_map) { | |
1917 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
1918 | return -ENOMEM; | |
1919 | } | |
1920 | ||
1921 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1922 | dbg_printk(TPACPI_DBG_INIT, | |
1923 | "using Lenovo default hot key map\n"); | |
1924 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1925 | TPACPI_HOTKEY_MAP_SIZE); | |
1926 | } else { | |
1927 | dbg_printk(TPACPI_DBG_INIT, | |
1928 | "using IBM default hot key map\n"); | |
1929 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1930 | TPACPI_HOTKEY_MAP_SIZE); | |
1931 | } | |
1932 | ||
6a38abbf HMH |
1933 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1934 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1935 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1936 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1937 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1938 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1939 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1940 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1941 | set_bit(hotkey_keycode_map[i], | |
1942 | tpacpi_inputdev->keybit); | |
1943 | } else { | |
1944 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1945 | hotkey_reserved_mask |= 1 << i; | |
1946 | } | |
1947 | } | |
1948 | ||
5c29d58f HMH |
1949 | if (tp_features.hotkey_wlsw) { |
1950 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1951 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1952 | } | |
1953 | ||
1a343760 HMH |
1954 | dbg_printk(TPACPI_DBG_INIT, |
1955 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
1956 | res = hotkey_status_set(1); |
1957 | if (res) | |
1958 | return res; | |
01e88f25 HMH |
1959 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
1960 | & ~hotkey_reserved_mask) | |
1a343760 | 1961 | | hotkey_orig_mask); |
01e88f25 | 1962 | if (res < 0 && res != -ENXIO) |
1a343760 | 1963 | return res; |
ff80f137 HMH |
1964 | |
1965 | dbg_printk(TPACPI_DBG_INIT, | |
1966 | "legacy hot key reporting over procfs %s\n", | |
1967 | (hotkey_report_mode < 2) ? | |
1968 | "enabled" : "disabled"); | |
01e88f25 HMH |
1969 | |
1970 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1971 | tpacpi_inputdev->open = &hotkey_inputdev_open; | |
1972 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
1973 | ||
1974 | hotkey_poll_setup_safe(1); | |
1975 | #endif | |
56b6aeb0 HMH |
1976 | } |
1977 | ||
d8fd94d9 | 1978 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1979 | } |
1980 | ||
1981 | static void hotkey_exit(void) | |
1982 | { | |
01e88f25 HMH |
1983 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1984 | hotkey_poll_stop_sync(); | |
1985 | #endif | |
1986 | ||
d8fd94d9 | 1987 | if (tp_features.hotkey) { |
b2c985e7 HMH |
1988 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hot key mask\n"); |
1989 | /* no short-circuit boolean operator below! */ | |
1990 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
1991 | hotkey_status_set(hotkey_orig_status)) != 0) | |
1992 | printk(IBM_ERR "failed to restore hot key mask to BIOS defaults\n"); | |
5fba344c | 1993 | } |
a0416420 HMH |
1994 | |
1995 | if (hotkey_dev_attributes) { | |
1996 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1997 | hotkey_dev_attributes = NULL; | |
1998 | } | |
56b6aeb0 HMH |
1999 | } |
2000 | ||
2001 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2002 | { | |
6a38abbf | 2003 | u32 hkey; |
b7c8c200 | 2004 | unsigned int scancode; |
3eea123d | 2005 | int send_acpi_ev; |
3e5ce914 | 2006 | int ignore_acpi_ev; |
3eea123d HMH |
2007 | |
2008 | if (event != 0x80) { | |
2009 | printk(IBM_ERR "unknown HKEY notification event %d\n", event); | |
2010 | /* forward it to userspace, maybe it knows how to handle it */ | |
2011 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
2012 | ibm->acpi->device->dev.bus_id, | |
2013 | event, 0); | |
2014 | return; | |
2015 | } | |
2016 | ||
2017 | while (1) { | |
2018 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
2019 | printk(IBM_ERR "failed to retrieve HKEY event\n"); | |
2020 | return; | |
2021 | } | |
2022 | ||
2023 | if (hkey == 0) { | |
2024 | /* queue empty */ | |
2025 | return; | |
2026 | } | |
2027 | ||
2028 | send_acpi_ev = 0; | |
3e5ce914 | 2029 | ignore_acpi_ev = 0; |
56b6aeb0 | 2030 | |
ff80f137 HMH |
2031 | switch (hkey >> 12) { |
2032 | case 1: | |
2033 | /* 0x1000-0x1FFF: key presses */ | |
2034 | scancode = hkey & 0xfff; | |
2035 | if (scancode > 0 && scancode < 0x21) { | |
2036 | scancode--; | |
01e88f25 HMH |
2037 | if (!(hotkey_source_mask & (1 << scancode))) { |
2038 | tpacpi_input_send_key(scancode); | |
2039 | } else { | |
2040 | ignore_acpi_ev = 1; | |
2041 | } | |
ff80f137 HMH |
2042 | } else { |
2043 | printk(IBM_ERR | |
2044 | "hotkey 0x%04x out of range for keyboard map\n", | |
2045 | hkey); | |
2046 | send_acpi_ev = 1; | |
2047 | } | |
2048 | break; | |
2049 | case 5: | |
2050 | /* 0x5000-0x5FFF: LID */ | |
2051 | /* we don't handle it through this path, just | |
2052 | * eat up known LID events */ | |
2053 | if (hkey != 0x5001 && hkey != 0x5002) { | |
2054 | printk(IBM_ERR | |
3eea123d HMH |
2055 | "unknown LID-related HKEY event: 0x%04x\n", |
2056 | hkey); | |
ff80f137 | 2057 | send_acpi_ev = 1; |
3e5ce914 HMH |
2058 | } else { |
2059 | ignore_acpi_ev = 1; | |
ff80f137 HMH |
2060 | } |
2061 | break; | |
2062 | case 7: | |
2063 | /* 0x7000-0x7FFF: misc */ | |
2064 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2065 | tpacpi_input_send_radiosw(); | |
6a38abbf | 2066 | break; |
6a38abbf | 2067 | } |
ff80f137 HMH |
2068 | /* fallthrough to default */ |
2069 | default: | |
2070 | /* case 2: dock-related */ | |
2071 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
2072 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
2073 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
2074 | printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); | |
2075 | send_acpi_ev = 1; | |
6a38abbf | 2076 | } |
ff80f137 | 2077 | |
3eea123d | 2078 | /* Legacy events */ |
3e5ce914 | 2079 | if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { |
3eea123d | 2080 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); |
3e5ce914 | 2081 | } |
ff80f137 | 2082 | |
3eea123d | 2083 | /* netlink events */ |
3e5ce914 | 2084 | if (!ignore_acpi_ev && send_acpi_ev) { |
3eea123d HMH |
2085 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2086 | ibm->acpi->device->dev.bus_id, | |
2087 | event, hkey); | |
2088 | } | |
56b6aeb0 HMH |
2089 | } |
2090 | } | |
2091 | ||
5c29d58f HMH |
2092 | static void hotkey_resume(void) |
2093 | { | |
b2c985e7 HMH |
2094 | if (hotkey_mask_get()) |
2095 | printk(IBM_ERR "error while trying to read hot key mask from firmware\n"); | |
5c29d58f | 2096 | tpacpi_input_send_radiosw(); |
01e88f25 HMH |
2097 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2098 | hotkey_poll_setup_safe(0); | |
2099 | #endif | |
5c29d58f HMH |
2100 | } |
2101 | ||
a0416420 | 2102 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2103 | static int hotkey_read(char *p) |
1da177e4 | 2104 | { |
ae92bd17 | 2105 | int res, status; |
1da177e4 LT |
2106 | int len = 0; |
2107 | ||
d8fd94d9 | 2108 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2109 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2110 | return len; | |
2111 | } | |
2112 | ||
fc589a3c HMH |
2113 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2114 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2115 | res = hotkey_status_get(&status); |
2116 | if (!res) | |
2117 | res = hotkey_mask_get(); | |
40ca9fdf | 2118 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2119 | if (res) |
2120 | return res; | |
1da177e4 LT |
2121 | |
2122 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2123 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2124 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2125 | len += sprintf(p + len, |
2126 | "commands:\tenable, disable, reset, <mask>\n"); | |
2127 | } else { | |
2128 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2129 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2130 | } | |
2131 | ||
2132 | return len; | |
2133 | } | |
2134 | ||
78f81cc4 | 2135 | static int hotkey_write(char *buf) |
1da177e4 | 2136 | { |
ae92bd17 HMH |
2137 | int res, status; |
2138 | u32 mask; | |
1da177e4 | 2139 | char *cmd; |
1da177e4 | 2140 | |
d8fd94d9 | 2141 | if (!tp_features.hotkey) |
1da177e4 LT |
2142 | return -ENODEV; |
2143 | ||
fc589a3c HMH |
2144 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2145 | return -ERESTARTSYS; | |
40ca9fdf | 2146 | |
b2c985e7 HMH |
2147 | status = -1; |
2148 | mask = hotkey_mask; | |
78f81cc4 | 2149 | |
40ca9fdf | 2150 | res = 0; |
1da177e4 LT |
2151 | while ((cmd = next_cmd(&buf))) { |
2152 | if (strlencmp(cmd, "enable") == 0) { | |
2153 | status = 1; | |
2154 | } else if (strlencmp(cmd, "disable") == 0) { | |
2155 | status = 0; | |
2156 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2157 | status = hotkey_orig_status; |
2158 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2159 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2160 | /* mask set */ | |
2161 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2162 | /* mask set */ | |
40ca9fdf HMH |
2163 | } else { |
2164 | res = -EINVAL; | |
2165 | goto errexit; | |
2166 | } | |
1da177e4 | 2167 | } |
b2c985e7 HMH |
2168 | if (status != -1) |
2169 | res = hotkey_status_set(status); | |
1da177e4 | 2170 | |
b2c985e7 HMH |
2171 | if (!res && mask != hotkey_mask) |
2172 | res = hotkey_mask_set(mask); | |
1da177e4 | 2173 | |
40ca9fdf HMH |
2174 | errexit: |
2175 | mutex_unlock(&hotkey_mutex); | |
2176 | return res; | |
78f81cc4 | 2177 | } |
1da177e4 | 2178 | |
1ba90e3a TR |
2179 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
2180 | {IBM_HKEY_HID, 0}, | |
2181 | {"", 0}, | |
2182 | }; | |
2183 | ||
8d376cd6 | 2184 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2185 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2186 | .notify = hotkey_notify, |
2187 | .handle = &hkey_handle, | |
2188 | .type = ACPI_DEVICE_NOTIFY, | |
2189 | }; | |
2190 | ||
a5763f22 HMH |
2191 | static struct ibm_struct hotkey_driver_data = { |
2192 | .name = "hotkey", | |
a5763f22 HMH |
2193 | .read = hotkey_read, |
2194 | .write = hotkey_write, | |
2195 | .exit = hotkey_exit, | |
5c29d58f | 2196 | .resume = hotkey_resume, |
8d376cd6 | 2197 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2198 | }; |
2199 | ||
56b6aeb0 HMH |
2200 | /************************************************************************* |
2201 | * Bluetooth subdriver | |
2202 | */ | |
1da177e4 | 2203 | |
f74a27d4 HMH |
2204 | enum { |
2205 | /* ACPI GBDC/SBDC bits */ | |
2206 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2207 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2208 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2209 | }; | |
2210 | ||
2211 | static int bluetooth_get_radiosw(void); | |
2212 | static int bluetooth_set_radiosw(int radio_on); | |
2213 | ||
d3a6ade4 HMH |
2214 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2215 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2216 | struct device_attribute *attr, | |
2217 | char *buf) | |
2218 | { | |
2219 | int status; | |
2220 | ||
2221 | status = bluetooth_get_radiosw(); | |
2222 | if (status < 0) | |
2223 | return status; | |
2224 | ||
2225 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2226 | } | |
2227 | ||
2228 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2229 | struct device_attribute *attr, | |
2230 | const char *buf, size_t count) | |
2231 | { | |
2232 | unsigned long t; | |
2233 | int res; | |
2234 | ||
2235 | if (parse_strtoul(buf, 1, &t)) | |
2236 | return -EINVAL; | |
2237 | ||
2238 | res = bluetooth_set_radiosw(t); | |
2239 | ||
2240 | return (res) ? res : count; | |
2241 | } | |
2242 | ||
2243 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2244 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2245 | bluetooth_enable_show, bluetooth_enable_store); |
2246 | ||
2247 | /* --------------------------------------------------------------------- */ | |
2248 | ||
2249 | static struct attribute *bluetooth_attributes[] = { | |
2250 | &dev_attr_bluetooth_enable.attr, | |
2251 | NULL | |
2252 | }; | |
2253 | ||
2254 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2255 | .attrs = bluetooth_attributes, |
2256 | }; | |
2257 | ||
a5763f22 | 2258 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2259 | { |
d3a6ade4 | 2260 | int res; |
d6fdd1e9 HMH |
2261 | int status = 0; |
2262 | ||
fe08bc4b HMH |
2263 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2264 | ||
8d376cd6 | 2265 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2266 | |
78f81cc4 BD |
2267 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2268 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2269 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2270 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2271 | ||
2272 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2273 | str_supported(tp_features.bluetooth), | |
2274 | status); | |
2275 | ||
d3a6ade4 HMH |
2276 | if (tp_features.bluetooth) { |
2277 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2278 | /* no bluetooth hardware present in system */ | |
2279 | tp_features.bluetooth = 0; | |
2280 | dbg_printk(TPACPI_DBG_INIT, | |
2281 | "bluetooth hardware not installed\n"); | |
2282 | } else { | |
2283 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2284 | &bluetooth_attr_group); | |
2285 | if (res) | |
2286 | return res; | |
2287 | } | |
d6fdd1e9 | 2288 | } |
fe08bc4b | 2289 | |
d8fd94d9 | 2290 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2291 | } |
2292 | ||
d3a6ade4 HMH |
2293 | static void bluetooth_exit(void) |
2294 | { | |
2295 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2296 | &bluetooth_attr_group); | |
2297 | } | |
2298 | ||
d6fdd1e9 | 2299 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2300 | { |
2301 | int status; | |
2302 | ||
d6fdd1e9 HMH |
2303 | if (!tp_features.bluetooth) |
2304 | return -ENODEV; | |
1da177e4 | 2305 | |
d6fdd1e9 HMH |
2306 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2307 | return -EIO; | |
2308 | ||
2309 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2310 | } | |
2311 | ||
2312 | static int bluetooth_set_radiosw(int radio_on) | |
2313 | { | |
2314 | int status; | |
2315 | ||
2316 | if (!tp_features.bluetooth) | |
2317 | return -ENODEV; | |
2318 | ||
2319 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2320 | return -EIO; | |
2321 | if (radio_on) | |
2322 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2323 | else | |
2324 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2325 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2326 | return -EIO; | |
2327 | ||
2328 | return 0; | |
1da177e4 LT |
2329 | } |
2330 | ||
d3a6ade4 | 2331 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2332 | static int bluetooth_read(char *p) |
1da177e4 LT |
2333 | { |
2334 | int len = 0; | |
d6fdd1e9 | 2335 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2336 | |
d8fd94d9 | 2337 | if (!tp_features.bluetooth) |
1da177e4 | 2338 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2339 | else { |
d6fdd1e9 HMH |
2340 | len += sprintf(p + len, "status:\t\t%s\n", |
2341 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2342 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2343 | } | |
2344 | ||
2345 | return len; | |
2346 | } | |
2347 | ||
78f81cc4 | 2348 | static int bluetooth_write(char *buf) |
1da177e4 | 2349 | { |
1da177e4 | 2350 | char *cmd; |
1da177e4 | 2351 | |
d8fd94d9 | 2352 | if (!tp_features.bluetooth) |
78f81cc4 | 2353 | return -ENODEV; |
1da177e4 LT |
2354 | |
2355 | while ((cmd = next_cmd(&buf))) { | |
2356 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2357 | bluetooth_set_radiosw(1); |
1da177e4 | 2358 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2359 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2360 | } else |
2361 | return -EINVAL; | |
1da177e4 LT |
2362 | } |
2363 | ||
1da177e4 LT |
2364 | return 0; |
2365 | } | |
2366 | ||
a5763f22 HMH |
2367 | static struct ibm_struct bluetooth_driver_data = { |
2368 | .name = "bluetooth", | |
2369 | .read = bluetooth_read, | |
2370 | .write = bluetooth_write, | |
d3a6ade4 | 2371 | .exit = bluetooth_exit, |
a5763f22 HMH |
2372 | }; |
2373 | ||
56b6aeb0 HMH |
2374 | /************************************************************************* |
2375 | * Wan subdriver | |
2376 | */ | |
2377 | ||
f74a27d4 HMH |
2378 | enum { |
2379 | /* ACPI GWAN/SWAN bits */ | |
2380 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2381 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2382 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2383 | }; | |
2384 | ||
2385 | static int wan_get_radiosw(void); | |
2386 | static int wan_set_radiosw(int radio_on); | |
2387 | ||
d3a6ade4 HMH |
2388 | /* sysfs wan enable ---------------------------------------------------- */ |
2389 | static ssize_t wan_enable_show(struct device *dev, | |
2390 | struct device_attribute *attr, | |
2391 | char *buf) | |
2392 | { | |
2393 | int status; | |
2394 | ||
2395 | status = wan_get_radiosw(); | |
2396 | if (status < 0) | |
2397 | return status; | |
2398 | ||
2399 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2400 | } | |
2401 | ||
2402 | static ssize_t wan_enable_store(struct device *dev, | |
2403 | struct device_attribute *attr, | |
2404 | const char *buf, size_t count) | |
2405 | { | |
2406 | unsigned long t; | |
2407 | int res; | |
2408 | ||
2409 | if (parse_strtoul(buf, 1, &t)) | |
2410 | return -EINVAL; | |
2411 | ||
2412 | res = wan_set_radiosw(t); | |
2413 | ||
2414 | return (res) ? res : count; | |
2415 | } | |
2416 | ||
2417 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2418 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2419 | wan_enable_show, wan_enable_store); |
2420 | ||
2421 | /* --------------------------------------------------------------------- */ | |
2422 | ||
2423 | static struct attribute *wan_attributes[] = { | |
2424 | &dev_attr_wan_enable.attr, | |
2425 | NULL | |
2426 | }; | |
2427 | ||
2428 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2429 | .attrs = wan_attributes, |
2430 | }; | |
2431 | ||
a5763f22 | 2432 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2433 | { |
d3a6ade4 | 2434 | int res; |
d6fdd1e9 HMH |
2435 | int status = 0; |
2436 | ||
fe08bc4b HMH |
2437 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2438 | ||
8d376cd6 | 2439 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2440 | |
d8fd94d9 | 2441 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2442 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2443 | ||
2444 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2445 | str_supported(tp_features.wan), | |
2446 | status); | |
2447 | ||
d3a6ade4 HMH |
2448 | if (tp_features.wan) { |
2449 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2450 | /* no wan hardware present in system */ | |
2451 | tp_features.wan = 0; | |
2452 | dbg_printk(TPACPI_DBG_INIT, | |
2453 | "wan hardware not installed\n"); | |
2454 | } else { | |
2455 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2456 | &wan_attr_group); | |
2457 | if (res) | |
2458 | return res; | |
2459 | } | |
d6fdd1e9 | 2460 | } |
fe08bc4b | 2461 | |
d8fd94d9 | 2462 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2463 | } |
2464 | ||
d3a6ade4 HMH |
2465 | static void wan_exit(void) |
2466 | { | |
2467 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2468 | &wan_attr_group); | |
2469 | } | |
2470 | ||
d6fdd1e9 | 2471 | static int wan_get_radiosw(void) |
42adb53c JF |
2472 | { |
2473 | int status; | |
2474 | ||
d6fdd1e9 HMH |
2475 | if (!tp_features.wan) |
2476 | return -ENODEV; | |
42adb53c | 2477 | |
d6fdd1e9 HMH |
2478 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2479 | return -EIO; | |
2480 | ||
2481 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2482 | } | |
2483 | ||
2484 | static int wan_set_radiosw(int radio_on) | |
2485 | { | |
2486 | int status; | |
2487 | ||
2488 | if (!tp_features.wan) | |
2489 | return -ENODEV; | |
2490 | ||
2491 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2492 | return -EIO; | |
2493 | if (radio_on) | |
2494 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2495 | else | |
2496 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2497 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2498 | return -EIO; | |
2499 | ||
2500 | return 0; | |
42adb53c JF |
2501 | } |
2502 | ||
d3a6ade4 | 2503 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2504 | static int wan_read(char *p) |
2505 | { | |
2506 | int len = 0; | |
d6fdd1e9 | 2507 | int status = wan_get_radiosw(); |
42adb53c | 2508 | |
d8fd94d9 | 2509 | if (!tp_features.wan) |
42adb53c | 2510 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2511 | else { |
d6fdd1e9 HMH |
2512 | len += sprintf(p + len, "status:\t\t%s\n", |
2513 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2514 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2515 | } | |
2516 | ||
2517 | return len; | |
2518 | } | |
2519 | ||
2520 | static int wan_write(char *buf) | |
2521 | { | |
42adb53c | 2522 | char *cmd; |
42adb53c | 2523 | |
d8fd94d9 | 2524 | if (!tp_features.wan) |
42adb53c JF |
2525 | return -ENODEV; |
2526 | ||
2527 | while ((cmd = next_cmd(&buf))) { | |
2528 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2529 | wan_set_radiosw(1); |
42adb53c | 2530 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2531 | wan_set_radiosw(0); |
42adb53c JF |
2532 | } else |
2533 | return -EINVAL; | |
42adb53c JF |
2534 | } |
2535 | ||
42adb53c JF |
2536 | return 0; |
2537 | } | |
2538 | ||
a5763f22 HMH |
2539 | static struct ibm_struct wan_driver_data = { |
2540 | .name = "wan", | |
2541 | .read = wan_read, | |
2542 | .write = wan_write, | |
d3a6ade4 | 2543 | .exit = wan_exit, |
92641177 | 2544 | .flags.experimental = 1, |
a5763f22 HMH |
2545 | }; |
2546 | ||
56b6aeb0 HMH |
2547 | /************************************************************************* |
2548 | * Video subdriver | |
2549 | */ | |
2550 | ||
f74a27d4 HMH |
2551 | enum video_access_mode { |
2552 | TPACPI_VIDEO_NONE = 0, | |
2553 | TPACPI_VIDEO_570, /* 570 */ | |
2554 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2555 | TPACPI_VIDEO_NEW, /* all others */ | |
2556 | }; | |
2557 | ||
2558 | enum { /* video status flags, based on VIDEO_570 */ | |
2559 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2560 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2561 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2562 | }; | |
2563 | ||
2564 | enum { /* TPACPI_VIDEO_570 constants */ | |
2565 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2566 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2567 | * video_status_flags */ | |
2568 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2569 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2570 | }; | |
2571 | ||
9a8e1738 HMH |
2572 | static enum video_access_mode video_supported; |
2573 | static int video_orig_autosw; | |
78f81cc4 | 2574 | |
f74a27d4 HMH |
2575 | static int video_autosw_get(void); |
2576 | static int video_autosw_set(int enable); | |
2577 | ||
56b6aeb0 HMH |
2578 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
2579 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
2580 | "\\_SB.PCI0.VID0", /* 770e */ | |
2581 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
2582 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
2583 | ); /* R30, R31 */ | |
2584 | ||
2585 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
2586 | ||
a5763f22 | 2587 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2588 | { |
78f81cc4 BD |
2589 | int ivga; |
2590 | ||
fe08bc4b HMH |
2591 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2592 | ||
8d376cd6 HMH |
2593 | IBM_ACPIHANDLE_INIT(vid); |
2594 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2595 | |
78f81cc4 BD |
2596 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2597 | /* G41, assume IVGA doesn't change */ | |
2598 | vid_handle = vid2_handle; | |
2599 | ||
2600 | if (!vid_handle) | |
2601 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2602 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2603 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2604 | /* 570 */ | |
efa27145 | 2605 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2606 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2607 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2608 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2609 | else |
2610 | /* all others */ | |
efa27145 | 2611 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2612 | |
fe08bc4b HMH |
2613 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2614 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2615 | video_supported); | |
2616 | ||
5fba344c | 2617 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2618 | } |
2619 | ||
56b6aeb0 HMH |
2620 | static void video_exit(void) |
2621 | { | |
83f34724 HMH |
2622 | dbg_printk(TPACPI_DBG_EXIT, |
2623 | "restoring original video autoswitch mode\n"); | |
2624 | if (video_autosw_set(video_orig_autosw)) | |
2625 | printk(IBM_ERR "error while trying to restore original " | |
2626 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
2627 | } |
2628 | ||
83f34724 | 2629 | static int video_outputsw_get(void) |
1da177e4 LT |
2630 | { |
2631 | int status = 0; | |
2632 | int i; | |
2633 | ||
83f34724 HMH |
2634 | switch (video_supported) { |
2635 | case TPACPI_VIDEO_570: | |
2636 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2637 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2638 | return -EIO; | |
2639 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2640 | break; | |
2641 | case TPACPI_VIDEO_770: | |
2642 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2643 | return -EIO; | |
2644 | if (i) | |
2645 | status |= TP_ACPI_VIDEO_S_LCD; | |
2646 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2647 | return -EIO; | |
2648 | if (i) | |
2649 | status |= TP_ACPI_VIDEO_S_CRT; | |
2650 | break; | |
2651 | case TPACPI_VIDEO_NEW: | |
2652 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2653 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2654 | return -EIO; | |
2655 | if (i) | |
2656 | status |= TP_ACPI_VIDEO_S_CRT; | |
2657 | ||
2658 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2659 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2660 | return -EIO; | |
2661 | if (i) | |
2662 | status |= TP_ACPI_VIDEO_S_LCD; | |
2663 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2664 | return -EIO; | |
2665 | if (i) | |
2666 | status |= TP_ACPI_VIDEO_S_DVI; | |
2667 | break; | |
2668 | default: | |
2669 | return -ENOSYS; | |
78f81cc4 BD |
2670 | } |
2671 | ||
2672 | return status; | |
2673 | } | |
1da177e4 | 2674 | |
83f34724 | 2675 | static int video_outputsw_set(int status) |
78f81cc4 | 2676 | { |
83f34724 HMH |
2677 | int autosw; |
2678 | int res = 0; | |
2679 | ||
2680 | switch (video_supported) { | |
2681 | case TPACPI_VIDEO_570: | |
2682 | res = acpi_evalf(NULL, NULL, | |
2683 | "\\_SB.PHS2", "vdd", | |
2684 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2685 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
2686 | break; | |
2687 | case TPACPI_VIDEO_770: | |
2688 | autosw = video_autosw_get(); | |
2689 | if (autosw < 0) | |
2690 | return autosw; | |
1da177e4 | 2691 | |
83f34724 HMH |
2692 | res = video_autosw_set(1); |
2693 | if (res) | |
2694 | return res; | |
2695 | res = acpi_evalf(vid_handle, NULL, | |
2696 | "ASWT", "vdd", status * 0x100, 0); | |
2697 | if (!autosw && video_autosw_set(autosw)) { | |
2698 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
2699 | return -EIO; | |
2700 | } | |
2701 | break; | |
2702 | case TPACPI_VIDEO_NEW: | |
2703 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
2704 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
2705 | break; | |
2706 | default: | |
2707 | return -ENOSYS; | |
2708 | } | |
1da177e4 | 2709 | |
83f34724 | 2710 | return (res)? 0 : -EIO; |
1da177e4 LT |
2711 | } |
2712 | ||
83f34724 | 2713 | static int video_autosw_get(void) |
78f81cc4 | 2714 | { |
83f34724 | 2715 | int autosw = 0; |
78f81cc4 | 2716 | |
83f34724 HMH |
2717 | switch (video_supported) { |
2718 | case TPACPI_VIDEO_570: | |
2719 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
2720 | return -EIO; | |
2721 | break; | |
2722 | case TPACPI_VIDEO_770: | |
2723 | case TPACPI_VIDEO_NEW: | |
2724 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2725 | return -EIO; | |
2726 | break; | |
2727 | default: | |
2728 | return -ENOSYS; | |
2729 | } | |
78f81cc4 | 2730 | |
83f34724 | 2731 | return autosw & 1; |
78f81cc4 BD |
2732 | } |
2733 | ||
83f34724 | 2734 | static int video_autosw_set(int enable) |
78f81cc4 | 2735 | { |
83f34724 HMH |
2736 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2737 | return -EIO; | |
2738 | return 0; | |
78f81cc4 BD |
2739 | } |
2740 | ||
83f34724 | 2741 | static int video_outputsw_cycle(void) |
78f81cc4 | 2742 | { |
83f34724 HMH |
2743 | int autosw = video_autosw_get(); |
2744 | int res; | |
78f81cc4 | 2745 | |
83f34724 HMH |
2746 | if (autosw < 0) |
2747 | return autosw; | |
78f81cc4 | 2748 | |
83f34724 HMH |
2749 | switch (video_supported) { |
2750 | case TPACPI_VIDEO_570: | |
2751 | res = video_autosw_set(1); | |
2752 | if (res) | |
2753 | return res; | |
2754 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2755 | break; | |
2756 | case TPACPI_VIDEO_770: | |
2757 | case TPACPI_VIDEO_NEW: | |
2758 | res = video_autosw_set(1); | |
2759 | if (res) | |
2760 | return res; | |
2761 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2762 | break; | |
2763 | default: | |
2764 | return -ENOSYS; | |
2765 | } | |
2766 | if (!autosw && video_autosw_set(autosw)) { | |
2767 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
2768 | return -EIO; | |
78f81cc4 BD |
2769 | } |
2770 | ||
83f34724 HMH |
2771 | return (res)? 0 : -EIO; |
2772 | } | |
2773 | ||
2774 | static int video_expand_toggle(void) | |
2775 | { | |
2776 | switch (video_supported) { | |
2777 | case TPACPI_VIDEO_570: | |
2778 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2779 | 0 : -EIO; | |
2780 | case TPACPI_VIDEO_770: | |
2781 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2782 | 0 : -EIO; | |
2783 | case TPACPI_VIDEO_NEW: | |
2784 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2785 | 0 : -EIO; | |
2786 | default: | |
2787 | return -ENOSYS; | |
2788 | } | |
2789 | /* not reached */ | |
78f81cc4 BD |
2790 | } |
2791 | ||
56b6aeb0 HMH |
2792 | static int video_read(char *p) |
2793 | { | |
83f34724 | 2794 | int status, autosw; |
56b6aeb0 HMH |
2795 | int len = 0; |
2796 | ||
83f34724 | 2797 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
2798 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2799 | return len; | |
2800 | } | |
2801 | ||
83f34724 HMH |
2802 | status = video_outputsw_get(); |
2803 | if (status < 0) | |
2804 | return status; | |
2805 | ||
2806 | autosw = video_autosw_get(); | |
2807 | if (autosw < 0) | |
2808 | return autosw; | |
2809 | ||
56b6aeb0 HMH |
2810 | len += sprintf(p + len, "status:\t\tsupported\n"); |
2811 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
2812 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 2813 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2814 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
2815 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
2816 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
2817 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 2818 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2819 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
2820 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
2821 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
2822 | ||
2823 | return len; | |
2824 | } | |
2825 | ||
78f81cc4 | 2826 | static int video_write(char *buf) |
1da177e4 LT |
2827 | { |
2828 | char *cmd; | |
2829 | int enable, disable, status; | |
83f34724 | 2830 | int res; |
1da177e4 | 2831 | |
83f34724 | 2832 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
2833 | return -ENODEV; |
2834 | ||
83f34724 HMH |
2835 | enable = 0; |
2836 | disable = 0; | |
1da177e4 LT |
2837 | |
2838 | while ((cmd = next_cmd(&buf))) { | |
2839 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 2840 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2841 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2842 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2843 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2844 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2845 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2846 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2847 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2848 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2849 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2850 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2851 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2852 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2853 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2854 | res = video_autosw_set(1); |
2855 | if (res) | |
2856 | return res; | |
1da177e4 | 2857 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2858 | res = video_autosw_set(0); |
2859 | if (res) | |
2860 | return res; | |
1da177e4 | 2861 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2862 | res = video_outputsw_cycle(); |
2863 | if (res) | |
2864 | return res; | |
1da177e4 | 2865 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2866 | res = video_expand_toggle(); |
2867 | if (res) | |
2868 | return res; | |
1da177e4 LT |
2869 | } else |
2870 | return -EINVAL; | |
2871 | } | |
2872 | ||
2873 | if (enable || disable) { | |
83f34724 HMH |
2874 | status = video_outputsw_get(); |
2875 | if (status < 0) | |
2876 | return status; | |
2877 | res = video_outputsw_set((status & ~disable) | enable); | |
2878 | if (res) | |
2879 | return res; | |
1da177e4 LT |
2880 | } |
2881 | ||
2882 | return 0; | |
2883 | } | |
2884 | ||
a5763f22 HMH |
2885 | static struct ibm_struct video_driver_data = { |
2886 | .name = "video", | |
2887 | .read = video_read, | |
2888 | .write = video_write, | |
2889 | .exit = video_exit, | |
2890 | }; | |
2891 | ||
56b6aeb0 HMH |
2892 | /************************************************************************* |
2893 | * Light (thinklight) subdriver | |
2894 | */ | |
1da177e4 | 2895 | |
56b6aeb0 HMH |
2896 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2897 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
2898 | ||
a5763f22 | 2899 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2900 | { |
fe08bc4b HMH |
2901 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2902 | ||
8d376cd6 HMH |
2903 | IBM_ACPIHANDLE_INIT(ledb); |
2904 | IBM_ACPIHANDLE_INIT(lght); | |
2905 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2906 | |
78f81cc4 | 2907 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2908 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2909 | |
d8fd94d9 | 2910 | if (tp_features.light) |
78f81cc4 BD |
2911 | /* light status not supported on |
2912 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2913 | tp_features.light_status = |
2914 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2915 | |
fe08bc4b | 2916 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2917 | str_supported(tp_features.light)); |
fe08bc4b | 2918 | |
d8fd94d9 | 2919 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2920 | } |
2921 | ||
78f81cc4 | 2922 | static int light_read(char *p) |
1da177e4 LT |
2923 | { |
2924 | int len = 0; | |
2925 | int status = 0; | |
2926 | ||
d8fd94d9 | 2927 | if (!tp_features.light) { |
78f81cc4 | 2928 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2929 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2930 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2931 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2932 | } else { | |
1da177e4 LT |
2933 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2934 | return -EIO; | |
2935 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2936 | len += sprintf(p + len, "commands:\ton, off\n"); |
2937 | } | |
1da177e4 LT |
2938 | |
2939 | return len; | |
2940 | } | |
2941 | ||
78f81cc4 | 2942 | static int light_write(char *buf) |
1da177e4 LT |
2943 | { |
2944 | int cmos_cmd, lght_cmd; | |
2945 | char *cmd; | |
2946 | int success; | |
78f81cc4 | 2947 | |
d8fd94d9 | 2948 | if (!tp_features.light) |
78f81cc4 BD |
2949 | return -ENODEV; |
2950 | ||
1da177e4 LT |
2951 | while ((cmd = next_cmd(&buf))) { |
2952 | if (strlencmp(cmd, "on") == 0) { | |
2953 | cmos_cmd = 0x0c; | |
2954 | lght_cmd = 1; | |
2955 | } else if (strlencmp(cmd, "off") == 0) { | |
2956 | cmos_cmd = 0x0d; | |
2957 | lght_cmd = 0; | |
2958 | } else | |
2959 | return -EINVAL; | |
78f81cc4 | 2960 | |
1da177e4 | 2961 | success = cmos_handle ? |
78f81cc4 BD |
2962 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2963 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2964 | if (!success) |
2965 | return -EIO; | |
2966 | } | |
2967 | ||
2968 | return 0; | |
2969 | } | |
2970 | ||
a5763f22 HMH |
2971 | static struct ibm_struct light_driver_data = { |
2972 | .name = "light", | |
2973 | .read = light_read, | |
2974 | .write = light_write, | |
2975 | }; | |
2976 | ||
56b6aeb0 HMH |
2977 | /************************************************************************* |
2978 | * Dock subdriver | |
2979 | */ | |
1da177e4 | 2980 | |
85998248 | 2981 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 2982 | |
f74a27d4 HMH |
2983 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
2984 | static int dock_read(char *p); | |
2985 | static int dock_write(char *buf); | |
2986 | ||
56b6aeb0 HMH |
2987 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
2988 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
2989 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2990 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2991 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2992 | ||
5fba344c HMH |
2993 | /* don't list other alternatives as we install a notify handler on the 570 */ |
2994 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
2995 | ||
1ba90e3a TR |
2996 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
2997 | {PCI_ROOT_HID_STRING, 0}, | |
2998 | {"", 0}, | |
2999 | }; | |
3000 | ||
d94a7f16 HMH |
3001 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3002 | { | |
3003 | .notify = dock_notify, | |
3004 | .handle = &dock_handle, | |
3005 | .type = ACPI_SYSTEM_NOTIFY, | |
3006 | }, | |
3007 | { | |
996fba08 HMH |
3008 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3009 | * We just use it to get notifications of dock hotplug | |
3010 | * in very old thinkpads */ | |
1ba90e3a | 3011 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3012 | .notify = dock_notify, |
3013 | .handle = &pci_handle, | |
3014 | .type = ACPI_SYSTEM_NOTIFY, | |
3015 | }, | |
3016 | }; | |
3017 | ||
3018 | static struct ibm_struct dock_driver_data[2] = { | |
3019 | { | |
3020 | .name = "dock", | |
3021 | .read = dock_read, | |
3022 | .write = dock_write, | |
3023 | .acpi = &ibm_dock_acpidriver[0], | |
3024 | }, | |
3025 | { | |
3026 | .name = "dock", | |
3027 | .acpi = &ibm_dock_acpidriver[1], | |
3028 | }, | |
3029 | }; | |
3030 | ||
1da177e4 LT |
3031 | #define dock_docked() (_sta(dock_handle) & 1) |
3032 | ||
a5763f22 | 3033 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3034 | { |
fe08bc4b HMH |
3035 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3036 | ||
8d376cd6 | 3037 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 3038 | |
fe08bc4b HMH |
3039 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3040 | str_supported(dock_handle != NULL)); | |
3041 | ||
5fba344c HMH |
3042 | return (dock_handle)? 0 : 1; |
3043 | } | |
3044 | ||
d94a7f16 HMH |
3045 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3046 | { | |
3047 | int dock2_needed; | |
3048 | ||
3049 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3050 | ||
3051 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3052 | dock_driver_data[0].flags.acpi_notify_installed) { | |
3053 | IBM_ACPIHANDLE_INIT(pci); | |
3054 | dock2_needed = (pci_handle != NULL); | |
3055 | vdbg_printk(TPACPI_DBG_INIT, | |
3056 | "dock PCI handler for the TP 570 is %s\n", | |
3057 | str_supported(dock2_needed)); | |
3058 | } else { | |
3059 | vdbg_printk(TPACPI_DBG_INIT, | |
3060 | "dock subdriver part 2 not required\n"); | |
3061 | dock2_needed = 0; | |
3062 | } | |
3063 | ||
3064 | return (dock2_needed)? 0 : 1; | |
3065 | } | |
3066 | ||
56b6aeb0 HMH |
3067 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3068 | { | |
3069 | int docked = dock_docked(); | |
1ba90e3a TR |
3070 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3071 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3072 | int data; |
56b6aeb0 HMH |
3073 | |
3074 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3075 | data = 1; /* button */ |
56b6aeb0 | 3076 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3077 | data = 3; /* dock */ |
56b6aeb0 | 3078 | else if (event == 3 && docked) |
962ce8ca | 3079 | data = 1; /* button */ |
56b6aeb0 | 3080 | else if (event == 3 && !docked) |
962ce8ca | 3081 | data = 2; /* undock */ |
56b6aeb0 | 3082 | else if (event == 0 && docked) |
962ce8ca | 3083 | data = 3; /* dock */ |
56b6aeb0 HMH |
3084 | else { |
3085 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
3086 | event, _sta(dock_handle)); | |
962ce8ca | 3087 | data = 0; /* unknown */ |
56b6aeb0 | 3088 | } |
14e04fb3 | 3089 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3090 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3091 | ibm->acpi->device->dev.bus_id, | |
3092 | event, data); | |
56b6aeb0 HMH |
3093 | } |
3094 | ||
78f81cc4 | 3095 | static int dock_read(char *p) |
1da177e4 LT |
3096 | { |
3097 | int len = 0; | |
3098 | int docked = dock_docked(); | |
3099 | ||
3100 | if (!dock_handle) | |
3101 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3102 | else if (!docked) | |
3103 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3104 | else { | |
3105 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3106 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3107 | } | |
3108 | ||
3109 | return len; | |
3110 | } | |
3111 | ||
78f81cc4 | 3112 | static int dock_write(char *buf) |
1da177e4 LT |
3113 | { |
3114 | char *cmd; | |
3115 | ||
3116 | if (!dock_docked()) | |
78f81cc4 | 3117 | return -ENODEV; |
1da177e4 LT |
3118 | |
3119 | while ((cmd = next_cmd(&buf))) { | |
3120 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3121 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3122 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3123 | return -EIO; |
3124 | } else if (strlencmp(cmd, "dock") == 0) { | |
3125 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3126 | return -EIO; | |
3127 | } else | |
3128 | return -EINVAL; | |
1da177e4 | 3129 | } |
56b6aeb0 HMH |
3130 | |
3131 | return 0; | |
1da177e4 | 3132 | } |
56b6aeb0 | 3133 | |
85998248 | 3134 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3135 | |
3136 | /************************************************************************* | |
3137 | * Bay subdriver | |
3138 | */ | |
1da177e4 | 3139 | |
85998248 | 3140 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3141 | |
56b6aeb0 HMH |
3142 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
3143 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
3144 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3145 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3146 | ); /* A21e, R30, R31 */ | |
3147 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
3148 | "_EJ0", /* all others */ | |
3149 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
3150 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
3151 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
3152 | ); /* all others */ | |
3153 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
3154 | "_EJ0", /* 770x */ | |
3155 | ); /* all others */ | |
3156 | ||
a5763f22 | 3157 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3158 | { |
fe08bc4b HMH |
3159 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3160 | ||
8d376cd6 | 3161 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 3162 | if (bay_handle) |
8d376cd6 HMH |
3163 | IBM_ACPIHANDLE_INIT(bay_ej); |
3164 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3165 | if (bay2_handle) |
8d376cd6 | 3166 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3167 | |
d8fd94d9 HMH |
3168 | tp_features.bay_status = bay_handle && |
3169 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3170 | tp_features.bay_status2 = bay2_handle && | |
3171 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3172 | |
d8fd94d9 HMH |
3173 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3174 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3175 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3176 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3177 | |
fe08bc4b HMH |
3178 | vdbg_printk(TPACPI_DBG_INIT, |
3179 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3180 | str_supported(tp_features.bay_status), |
3181 | str_supported(tp_features.bay_eject), | |
3182 | str_supported(tp_features.bay_status2), | |
3183 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3184 | |
d8fd94d9 HMH |
3185 | return (tp_features.bay_status || tp_features.bay_eject || |
3186 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3187 | } |
3188 | ||
56b6aeb0 HMH |
3189 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3190 | { | |
14e04fb3 | 3191 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3192 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3193 | ibm->acpi->device->dev.bus_id, | |
3194 | event, 0); | |
56b6aeb0 HMH |
3195 | } |
3196 | ||
78f81cc4 BD |
3197 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3198 | ||
3199 | static int bay_read(char *p) | |
1da177e4 LT |
3200 | { |
3201 | int len = 0; | |
78f81cc4 BD |
3202 | int occupied = bay_occupied(bay); |
3203 | int occupied2 = bay_occupied(bay2); | |
3204 | int eject, eject2; | |
3205 | ||
d8fd94d9 HMH |
3206 | len += sprintf(p + len, "status:\t\t%s\n", |
3207 | tp_features.bay_status ? | |
3208 | (occupied ? "occupied" : "unoccupied") : | |
3209 | "not supported"); | |
3210 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3211 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3212 | "occupied" : "unoccupied"); | |
3213 | ||
d8fd94d9 HMH |
3214 | eject = tp_features.bay_eject && occupied; |
3215 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3216 | |
3217 | if (eject && eject2) | |
3218 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3219 | else if (eject) | |
1da177e4 | 3220 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3221 | else if (eject2) |
3222 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3223 | |
3224 | return len; | |
3225 | } | |
3226 | ||
78f81cc4 | 3227 | static int bay_write(char *buf) |
1da177e4 LT |
3228 | { |
3229 | char *cmd; | |
3230 | ||
d8fd94d9 | 3231 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3232 | return -ENODEV; |
3233 | ||
1da177e4 | 3234 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3235 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3236 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3237 | return -EIO; | |
d8fd94d9 | 3238 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3239 | strlencmp(cmd, "eject2") == 0) { |
3240 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3241 | return -EIO; |
3242 | } else | |
3243 | return -EINVAL; | |
3244 | } | |
3245 | ||
3246 | return 0; | |
78f81cc4 | 3247 | } |
a5763f22 | 3248 | |
8d376cd6 HMH |
3249 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3250 | .notify = bay_notify, | |
3251 | .handle = &bay_handle, | |
3252 | .type = ACPI_SYSTEM_NOTIFY, | |
3253 | }; | |
3254 | ||
a5763f22 HMH |
3255 | static struct ibm_struct bay_driver_data = { |
3256 | .name = "bay", | |
3257 | .read = bay_read, | |
3258 | .write = bay_write, | |
8d376cd6 | 3259 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3260 | }; |
3261 | ||
85998248 | 3262 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3263 | |
56b6aeb0 HMH |
3264 | /************************************************************************* |
3265 | * CMOS subdriver | |
3266 | */ | |
3267 | ||
b616004c HMH |
3268 | /* sysfs cmos_command -------------------------------------------------- */ |
3269 | static ssize_t cmos_command_store(struct device *dev, | |
3270 | struct device_attribute *attr, | |
3271 | const char *buf, size_t count) | |
3272 | { | |
3273 | unsigned long cmos_cmd; | |
3274 | int res; | |
3275 | ||
3276 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3277 | return -EINVAL; | |
3278 | ||
3279 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3280 | return (res)? res : count; | |
3281 | } | |
3282 | ||
3283 | static struct device_attribute dev_attr_cmos_command = | |
3284 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3285 | ||
3286 | /* --------------------------------------------------------------------- */ | |
3287 | ||
a5763f22 | 3288 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3289 | { |
b616004c HMH |
3290 | int res; |
3291 | ||
fe08bc4b HMH |
3292 | vdbg_printk(TPACPI_DBG_INIT, |
3293 | "initializing cmos commands subdriver\n"); | |
3294 | ||
8d376cd6 | 3295 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 3296 | |
fe08bc4b HMH |
3297 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3298 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3299 | |
3300 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3301 | if (res) | |
3302 | return res; | |
3303 | ||
5fba344c HMH |
3304 | return (cmos_handle)? 0 : 1; |
3305 | } | |
3306 | ||
b616004c HMH |
3307 | static void cmos_exit(void) |
3308 | { | |
3309 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3310 | } | |
3311 | ||
78f81cc4 | 3312 | static int cmos_read(char *p) |
1da177e4 LT |
3313 | { |
3314 | int len = 0; | |
3315 | ||
78f81cc4 BD |
3316 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3317 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3318 | if (!cmos_handle) |
3319 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3320 | else { | |
3321 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3322 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3323 | } |
3324 | ||
3325 | return len; | |
3326 | } | |
3327 | ||
78f81cc4 | 3328 | static int cmos_write(char *buf) |
1da177e4 LT |
3329 | { |
3330 | char *cmd; | |
c9bea99c | 3331 | int cmos_cmd, res; |
1da177e4 LT |
3332 | |
3333 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3334 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3335 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3336 | /* cmos_cmd set */ |
3337 | } else | |
3338 | return -EINVAL; | |
3339 | ||
c9bea99c HMH |
3340 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3341 | if (res) | |
3342 | return res; | |
1da177e4 LT |
3343 | } |
3344 | ||
3345 | return 0; | |
78f81cc4 BD |
3346 | } |
3347 | ||
a5763f22 HMH |
3348 | static struct ibm_struct cmos_driver_data = { |
3349 | .name = "cmos", | |
3350 | .read = cmos_read, | |
3351 | .write = cmos_write, | |
b616004c | 3352 | .exit = cmos_exit, |
a5763f22 | 3353 | }; |
56b6aeb0 HMH |
3354 | |
3355 | /************************************************************************* | |
3356 | * LED subdriver | |
3357 | */ | |
3358 | ||
f74a27d4 HMH |
3359 | enum led_access_mode { |
3360 | TPACPI_LED_NONE = 0, | |
3361 | TPACPI_LED_570, /* 570 */ | |
3362 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3363 | TPACPI_LED_NEW, /* all others */ | |
3364 | }; | |
3365 | ||
3366 | enum { /* For TPACPI_LED_OLD */ | |
3367 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3368 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3369 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3370 | }; | |
3371 | ||
9a8e1738 | 3372 | static enum led_access_mode led_supported; |
78f81cc4 | 3373 | |
56b6aeb0 HMH |
3374 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
3375 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3376 | "LED", /* all others */ | |
3377 | ); /* R30, R31 */ | |
3378 | ||
a5763f22 | 3379 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3380 | { |
fe08bc4b HMH |
3381 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3382 | ||
8d376cd6 | 3383 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 3384 | |
78f81cc4 BD |
3385 | if (!led_handle) |
3386 | /* led not supported on R30, R31 */ | |
efa27145 | 3387 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3388 | else if (strlencmp(led_path, "SLED") == 0) |
3389 | /* 570 */ | |
efa27145 | 3390 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3391 | else if (strlencmp(led_path, "SYSL") == 0) |
3392 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3393 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3394 | else |
3395 | /* all others */ | |
efa27145 | 3396 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3397 | |
fe08bc4b HMH |
3398 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3399 | str_supported(led_supported), led_supported); | |
3400 | ||
5fba344c | 3401 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3402 | } |
3403 | ||
3404 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3405 | ||
3406 | static int led_read(char *p) | |
1da177e4 LT |
3407 | { |
3408 | int len = 0; | |
3409 | ||
78f81cc4 BD |
3410 | if (!led_supported) { |
3411 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3412 | return len; | |
3413 | } | |
3414 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3415 | ||
efa27145 | 3416 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3417 | /* 570 */ |
3418 | int i, status; | |
3419 | for (i = 0; i < 8; i++) { | |
3420 | if (!acpi_evalf(ec_handle, | |
3421 | &status, "GLED", "dd", 1 << i)) | |
3422 | return -EIO; | |
3423 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3424 | i, led_status(status)); | |
3425 | } | |
3426 | } | |
3427 | ||
1da177e4 | 3428 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3429 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3430 | |
3431 | return len; | |
3432 | } | |
3433 | ||
78f81cc4 BD |
3434 | /* off, on, blink */ |
3435 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3436 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3437 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3438 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3439 | ||
78f81cc4 | 3440 | static int led_write(char *buf) |
1da177e4 LT |
3441 | { |
3442 | char *cmd; | |
78f81cc4 BD |
3443 | int led, ind, ret; |
3444 | ||
3445 | if (!led_supported) | |
3446 | return -ENODEV; | |
1da177e4 LT |
3447 | |
3448 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3449 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3450 | return -EINVAL; |
3451 | ||
78f81cc4 BD |
3452 | if (strstr(cmd, "off")) { |
3453 | ind = 0; | |
1da177e4 | 3454 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3455 | ind = 1; |
3456 | } else if (strstr(cmd, "blink")) { | |
3457 | ind = 2; | |
1da177e4 LT |
3458 | } else |
3459 | return -EINVAL; | |
78f81cc4 | 3460 | |
efa27145 | 3461 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3462 | /* 570 */ |
3463 | led = 1 << led; | |
1da177e4 | 3464 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3465 | led, led_sled_arg1[ind])) |
1da177e4 | 3466 | return -EIO; |
efa27145 | 3467 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3468 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3469 | led = 1 << led; | |
efa27145 | 3470 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
3471 | if (ret >= 0) |
3472 | ret = | |
efa27145 | 3473 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 3474 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
3475 | if (ret >= 0) |
3476 | ret = | |
efa27145 | 3477 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 3478 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
3479 | if (ret < 0) |
3480 | return ret; | |
3481 | } else { | |
3482 | /* all others */ | |
3483 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3484 | led, led_led_arg1[ind])) | |
1da177e4 | 3485 | return -EIO; |
78f81cc4 BD |
3486 | } |
3487 | } | |
3488 | ||
3489 | return 0; | |
3490 | } | |
3491 | ||
a5763f22 HMH |
3492 | static struct ibm_struct led_driver_data = { |
3493 | .name = "led", | |
3494 | .read = led_read, | |
3495 | .write = led_write, | |
3496 | }; | |
3497 | ||
56b6aeb0 HMH |
3498 | /************************************************************************* |
3499 | * Beep subdriver | |
3500 | */ | |
3501 | ||
3502 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
3503 | ||
a5763f22 | 3504 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3505 | { |
fe08bc4b HMH |
3506 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3507 | ||
8d376cd6 | 3508 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 3509 | |
fe08bc4b HMH |
3510 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3511 | str_supported(beep_handle != NULL)); | |
3512 | ||
5fba344c HMH |
3513 | return (beep_handle)? 0 : 1; |
3514 | } | |
3515 | ||
78f81cc4 BD |
3516 | static int beep_read(char *p) |
3517 | { | |
3518 | int len = 0; | |
3519 | ||
3520 | if (!beep_handle) | |
3521 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3522 | else { | |
3523 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3524 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3525 | } | |
3526 | ||
3527 | return len; | |
3528 | } | |
3529 | ||
3530 | static int beep_write(char *buf) | |
3531 | { | |
3532 | char *cmd; | |
3533 | int beep_cmd; | |
3534 | ||
3535 | if (!beep_handle) | |
3536 | return -ENODEV; | |
3537 | ||
3538 | while ((cmd = next_cmd(&buf))) { | |
3539 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3540 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3541 | /* beep_cmd set */ | |
3542 | } else | |
3543 | return -EINVAL; | |
3544 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3545 | return -EIO; | |
3546 | } | |
3547 | ||
3548 | return 0; | |
3549 | } | |
3550 | ||
a5763f22 HMH |
3551 | static struct ibm_struct beep_driver_data = { |
3552 | .name = "beep", | |
3553 | .read = beep_read, | |
3554 | .write = beep_write, | |
3555 | }; | |
3556 | ||
56b6aeb0 HMH |
3557 | /************************************************************************* |
3558 | * Thermal subdriver | |
3559 | */ | |
78f81cc4 | 3560 | |
f74a27d4 HMH |
3561 | enum thermal_access_mode { |
3562 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3563 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3564 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3565 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3566 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3567 | }; | |
3568 | ||
3569 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3570 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3571 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3572 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3573 | }; | |
3574 | ||
3575 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3576 | struct ibm_thermal_sensors_struct { | |
3577 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3578 | }; | |
3579 | ||
a26f878a | 3580 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3581 | |
b21a15f6 HMH |
3582 | /* idx is zero-based */ |
3583 | static int thermal_get_sensor(int idx, s32 *value) | |
3584 | { | |
3585 | int t; | |
3586 | s8 tmp; | |
3587 | char tmpi[5]; | |
3588 | ||
3589 | t = TP_EC_THERMAL_TMP0; | |
3590 | ||
3591 | switch (thermal_read_mode) { | |
3592 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3593 | case TPACPI_THERMAL_TPEC_16: | |
3594 | if (idx >= 8 && idx <= 15) { | |
3595 | t = TP_EC_THERMAL_TMP8; | |
3596 | idx -= 8; | |
3597 | } | |
3598 | /* fallthrough */ | |
3599 | #endif | |
3600 | case TPACPI_THERMAL_TPEC_8: | |
3601 | if (idx <= 7) { | |
3602 | if (!acpi_ec_read(t + idx, &tmp)) | |
3603 | return -EIO; | |
3604 | *value = tmp * 1000; | |
3605 | return 0; | |
3606 | } | |
3607 | break; | |
3608 | ||
3609 | case TPACPI_THERMAL_ACPI_UPDT: | |
3610 | if (idx <= 7) { | |
3611 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3612 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3613 | return -EIO; | |
3614 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3615 | return -EIO; | |
3616 | *value = (t - 2732) * 100; | |
3617 | return 0; | |
3618 | } | |
3619 | break; | |
3620 | ||
3621 | case TPACPI_THERMAL_ACPI_TMP07: | |
3622 | if (idx <= 7) { | |
3623 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3624 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3625 | return -EIO; | |
3626 | if (t > 127 || t < -127) | |
3627 | t = TP_EC_THERMAL_TMP_NA; | |
3628 | *value = t * 1000; | |
3629 | return 0; | |
3630 | } | |
3631 | break; | |
3632 | ||
3633 | case TPACPI_THERMAL_NONE: | |
3634 | default: | |
3635 | return -ENOSYS; | |
3636 | } | |
3637 | ||
3638 | return -EINVAL; | |
3639 | } | |
3640 | ||
3641 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3642 | { | |
3643 | int res, i; | |
3644 | int n; | |
3645 | ||
3646 | n = 8; | |
3647 | i = 0; | |
3648 | ||
3649 | if (!s) | |
3650 | return -EINVAL; | |
3651 | ||
3652 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3653 | n = 16; | |
3654 | ||
3655 | for(i = 0 ; i < n; i++) { | |
3656 | res = thermal_get_sensor(i, &s->temp[i]); | |
3657 | if (res) | |
3658 | return res; | |
3659 | } | |
3660 | ||
3661 | return n; | |
3662 | } | |
f74a27d4 | 3663 | |
2c37aa4e HMH |
3664 | /* sysfs temp##_input -------------------------------------------------- */ |
3665 | ||
3666 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3667 | struct device_attribute *attr, | |
3668 | char *buf) | |
3669 | { | |
3670 | struct sensor_device_attribute *sensor_attr = | |
3671 | to_sensor_dev_attr(attr); | |
3672 | int idx = sensor_attr->index; | |
3673 | s32 value; | |
3674 | int res; | |
3675 | ||
3676 | res = thermal_get_sensor(idx, &value); | |
3677 | if (res) | |
3678 | return res; | |
3679 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3680 | return -ENXIO; | |
3681 | ||
3682 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3683 | } | |
3684 | ||
3685 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
3686 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
3687 | ||
3688 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3689 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3690 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3691 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3692 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3693 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3694 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3695 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3696 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3697 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3698 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3699 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3700 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3701 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3702 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3703 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3704 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3705 | }; | |
3706 | ||
3707 | #define THERMAL_ATTRS(X) \ | |
3708 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3709 | ||
3710 | static struct attribute *thermal_temp_input_attr[] = { | |
3711 | THERMAL_ATTRS(8), | |
3712 | THERMAL_ATTRS(9), | |
3713 | THERMAL_ATTRS(10), | |
3714 | THERMAL_ATTRS(11), | |
3715 | THERMAL_ATTRS(12), | |
3716 | THERMAL_ATTRS(13), | |
3717 | THERMAL_ATTRS(14), | |
3718 | THERMAL_ATTRS(15), | |
3719 | THERMAL_ATTRS(0), | |
3720 | THERMAL_ATTRS(1), | |
3721 | THERMAL_ATTRS(2), | |
3722 | THERMAL_ATTRS(3), | |
3723 | THERMAL_ATTRS(4), | |
3724 | THERMAL_ATTRS(5), | |
3725 | THERMAL_ATTRS(6), | |
3726 | THERMAL_ATTRS(7), | |
3727 | NULL | |
3728 | }; | |
3729 | ||
3730 | static const struct attribute_group thermal_temp_input16_group = { | |
3731 | .attrs = thermal_temp_input_attr | |
3732 | }; | |
3733 | ||
3734 | static const struct attribute_group thermal_temp_input8_group = { | |
3735 | .attrs = &thermal_temp_input_attr[8] | |
3736 | }; | |
3737 | ||
3738 | #undef THERMAL_SENSOR_ATTR_TEMP | |
3739 | #undef THERMAL_ATTRS | |
3740 | ||
3741 | /* --------------------------------------------------------------------- */ | |
3742 | ||
a5763f22 | 3743 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3744 | { |
60eb0b35 HMH |
3745 | u8 t, ta1, ta2; |
3746 | int i; | |
5fba344c | 3747 | int acpi_tmp7; |
2c37aa4e | 3748 | int res; |
5fba344c | 3749 | |
fe08bc4b HMH |
3750 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
3751 | ||
5fba344c | 3752 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 3753 | |
3d6f99ca | 3754 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
3755 | /* |
3756 | * Direct EC access mode: sensors at registers | |
3757 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
3758 | * non-implemented, thermal sensors return 0x80 when | |
3759 | * not available | |
3760 | */ | |
78f81cc4 | 3761 | |
60eb0b35 HMH |
3762 | ta1 = ta2 = 0; |
3763 | for (i = 0; i < 8; i++) { | |
04cc862c | 3764 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
3765 | ta1 |= t; |
3766 | } else { | |
3767 | ta1 = 0; | |
3768 | break; | |
3769 | } | |
04cc862c | 3770 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
3771 | ta2 |= t; |
3772 | } else { | |
3773 | ta1 = 0; | |
3774 | break; | |
3775 | } | |
3776 | } | |
3777 | if (ta1 == 0) { | |
3778 | /* This is sheer paranoia, but we handle it anyway */ | |
3779 | if (acpi_tmp7) { | |
3780 | printk(IBM_ERR | |
3781 | "ThinkPad ACPI EC access misbehaving, " | |
3782 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 3783 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
3784 | } else { |
3785 | printk(IBM_ERR | |
3786 | "ThinkPad ACPI EC access misbehaving, " | |
3787 | "disabling thermal sensors access\n"); | |
efa27145 | 3788 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
3789 | } |
3790 | } else { | |
3791 | thermal_read_mode = | |
3792 | (ta2 != 0) ? | |
efa27145 | 3793 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
3794 | } |
3795 | } else if (acpi_tmp7) { | |
a26f878a HMH |
3796 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
3797 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3798 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
3799 | } else { |
3800 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 3801 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
3802 | } |
3803 | } else { | |
3804 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 3805 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 3806 | } |
78f81cc4 | 3807 | |
fe08bc4b HMH |
3808 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
3809 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
3810 | thermal_read_mode); | |
3811 | ||
2c37aa4e HMH |
3812 | switch(thermal_read_mode) { |
3813 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3814 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3815 | &thermal_temp_input16_group); |
3816 | if (res) | |
3817 | return res; | |
3818 | break; | |
3819 | case TPACPI_THERMAL_TPEC_8: | |
3820 | case TPACPI_THERMAL_ACPI_TMP07: | |
3821 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3822 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3823 | &thermal_temp_input8_group); |
3824 | if (res) | |
3825 | return res; | |
3826 | break; | |
3827 | case TPACPI_THERMAL_NONE: | |
3828 | default: | |
3829 | return 1; | |
3830 | } | |
3831 | ||
3832 | return 0; | |
3833 | } | |
3834 | ||
3835 | static void thermal_exit(void) | |
3836 | { | |
3837 | switch(thermal_read_mode) { | |
3838 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3839 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3840 | &thermal_temp_input16_group); |
3841 | break; | |
3842 | case TPACPI_THERMAL_TPEC_8: | |
3843 | case TPACPI_THERMAL_ACPI_TMP07: | |
3844 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3845 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3846 | &thermal_temp_input16_group); |
3847 | break; | |
3848 | case TPACPI_THERMAL_NONE: | |
3849 | default: | |
3850 | break; | |
3851 | } | |
78f81cc4 BD |
3852 | } |
3853 | ||
a26f878a HMH |
3854 | static int thermal_read(char *p) |
3855 | { | |
3856 | int len = 0; | |
3857 | int n, i; | |
3858 | struct ibm_thermal_sensors_struct t; | |
3859 | ||
3860 | n = thermal_get_sensors(&t); | |
3861 | if (unlikely(n < 0)) | |
3862 | return n; | |
3863 | ||
3864 | len += sprintf(p + len, "temperatures:\t"); | |
3865 | ||
3866 | if (n > 0) { | |
3867 | for (i = 0; i < (n - 1); i++) | |
3868 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
3869 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
3870 | } else | |
3871 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
3872 | |
3873 | return len; | |
3874 | } | |
3875 | ||
a5763f22 HMH |
3876 | static struct ibm_struct thermal_driver_data = { |
3877 | .name = "thermal", | |
3878 | .read = thermal_read, | |
2c37aa4e | 3879 | .exit = thermal_exit, |
a5763f22 HMH |
3880 | }; |
3881 | ||
56b6aeb0 HMH |
3882 | /************************************************************************* |
3883 | * EC Dump subdriver | |
3884 | */ | |
3885 | ||
78f81cc4 BD |
3886 | static u8 ecdump_regs[256]; |
3887 | ||
3888 | static int ecdump_read(char *p) | |
3889 | { | |
3890 | int len = 0; | |
3891 | int i, j; | |
3892 | u8 v; | |
3893 | ||
3894 | len += sprintf(p + len, "EC " | |
3895 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3896 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3897 | for (i = 0; i < 256; i += 16) { | |
3898 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3899 | for (j = 0; j < 16; j++) { | |
3900 | if (!acpi_ec_read(i + j, &v)) | |
3901 | break; | |
3902 | if (v != ecdump_regs[i + j]) | |
3903 | len += sprintf(p + len, " *%02x", v); | |
3904 | else | |
3905 | len += sprintf(p + len, " %02x", v); | |
3906 | ecdump_regs[i + j] = v; | |
3907 | } | |
3908 | len += sprintf(p + len, "\n"); | |
3909 | if (j != 16) | |
3910 | break; | |
3911 | } | |
3912 | ||
3913 | /* These are way too dangerous to advertise openly... */ | |
3914 | #if 0 | |
3915 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3916 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3917 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3918 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3919 | #endif | |
3920 | return len; | |
3921 | } | |
3922 | ||
3923 | static int ecdump_write(char *buf) | |
3924 | { | |
3925 | char *cmd; | |
3926 | int i, v; | |
3927 | ||
3928 | while ((cmd = next_cmd(&buf))) { | |
3929 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3930 | /* i and v set */ | |
3931 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3932 | /* i and v set */ | |
3933 | } else | |
3934 | return -EINVAL; | |
3935 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3936 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3937 | return -EIO; |
3938 | } else | |
3939 | return -EINVAL; | |
3940 | } | |
3941 | ||
3942 | return 0; | |
78f81cc4 BD |
3943 | } |
3944 | ||
a5763f22 HMH |
3945 | static struct ibm_struct ecdump_driver_data = { |
3946 | .name = "ecdump", | |
3947 | .read = ecdump_read, | |
3948 | .write = ecdump_write, | |
92641177 | 3949 | .flags.experimental = 1, |
a5763f22 HMH |
3950 | }; |
3951 | ||
56b6aeb0 HMH |
3952 | /************************************************************************* |
3953 | * Backlight/brightness subdriver | |
3954 | */ | |
3955 | ||
f74a27d4 HMH |
3956 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
3957 | ||
94954cc6 | 3958 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
3959 | static int brightness_offset = 0x31; |
3960 | static int brightness_mode; | |
3961 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
3962 | ||
b21a15f6 | 3963 | static struct mutex brightness_mutex; |
56b6aeb0 | 3964 | |
b21a15f6 HMH |
3965 | /* |
3966 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3967 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3968 | */ | |
3969 | static int brightness_get(struct backlight_device *bd) | |
3970 | { | |
3971 | u8 lec = 0, lcmos = 0, level = 0; | |
3972 | ||
3973 | if (brightness_mode & 1) { | |
3974 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3975 | return -EIO; | |
3976 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
3977 | level = lec; | |
3978 | }; | |
3979 | if (brightness_mode & 2) { | |
3980 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3981 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3982 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
3983 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
3984 | level = lcmos; | |
3985 | } | |
3986 | ||
3987 | if (brightness_mode == 3 && lec != lcmos) { | |
3988 | printk(IBM_ERR | |
3989 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
3990 | "on display brightness level\n", | |
3991 | (unsigned int) lcmos, | |
3992 | (unsigned int) lec); | |
3993 | return -EIO; | |
3994 | } | |
3995 | ||
3996 | return level; | |
3997 | } | |
3998 | ||
3999 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4000 | static int brightness_set(int value) | |
4001 | { | |
4002 | int cmos_cmd, inc, i, res; | |
4003 | int current_value; | |
4004 | ||
4005 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4006 | return -EINVAL; | |
4007 | ||
4008 | res = mutex_lock_interruptible(&brightness_mutex); | |
4009 | if (res < 0) | |
4010 | return res; | |
4011 | ||
4012 | current_value = brightness_get(NULL); | |
4013 | if (current_value < 0) { | |
4014 | res = current_value; | |
4015 | goto errout; | |
4016 | } | |
4017 | ||
4018 | cmos_cmd = value > current_value ? | |
4019 | TP_CMOS_BRIGHTNESS_UP : | |
4020 | TP_CMOS_BRIGHTNESS_DOWN; | |
4021 | inc = (value > current_value)? 1 : -1; | |
4022 | ||
4023 | res = 0; | |
4024 | for (i = current_value; i != value; i += inc) { | |
4025 | if ((brightness_mode & 2) && | |
4026 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4027 | res = -EIO; | |
4028 | goto errout; | |
4029 | } | |
4030 | if ((brightness_mode & 1) && | |
4031 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4032 | res = -EIO; | |
4033 | goto errout;; | |
4034 | } | |
4035 | } | |
4036 | ||
4037 | errout: | |
4038 | mutex_unlock(&brightness_mutex); | |
4039 | return res; | |
4040 | } | |
4041 | ||
4042 | /* sysfs backlight class ----------------------------------------------- */ | |
4043 | ||
4044 | static int brightness_update_status(struct backlight_device *bd) | |
4045 | { | |
4046 | /* it is the backlight class's job (caller) to handle | |
4047 | * EINTR and other errors properly */ | |
4048 | return brightness_set( | |
4049 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4050 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4051 | bd->props.brightness : 0); | |
4052 | } | |
4053 | ||
4054 | static struct backlight_ops ibm_backlight_data = { | |
4055 | .get_brightness = brightness_get, | |
56b6aeb0 HMH |
4056 | .update_status = brightness_update_status, |
4057 | }; | |
4058 | ||
b21a15f6 | 4059 | /* --------------------------------------------------------------------- */ |
f432255e | 4060 | |
a3f104c0 HMH |
4061 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4062 | { | |
4063 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4064 | union acpi_object *obj; | |
4065 | int rc; | |
4066 | ||
4067 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4068 | obj = (union acpi_object *)buffer.pointer; | |
4069 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
4070 | printk(IBM_ERR "Unknown BCLL data, " | |
4071 | "please report this to %s\n", IBM_MAIL); | |
4072 | rc = 0; | |
4073 | } else { | |
4074 | rc = obj->package.count; | |
4075 | } | |
4076 | } else { | |
4077 | return 0; | |
4078 | } | |
4079 | ||
4080 | kfree(buffer.pointer); | |
4081 | return rc; | |
4082 | } | |
4083 | ||
4084 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4085 | void *context, void **rv) | |
4086 | { | |
4087 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4088 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4089 | ||
4090 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4091 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4092 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4093 | *rv = handle; | |
4094 | return AE_CTRL_TERMINATE; | |
4095 | } else { | |
4096 | return AE_OK; | |
4097 | } | |
4098 | } else { | |
4099 | return AE_OK; | |
4100 | } | |
4101 | } | |
4102 | ||
4103 | static int __init brightness_check_levels(void) | |
4104 | { | |
4105 | int status; | |
4106 | void *found_node = NULL; | |
4107 | ||
4108 | if (!vid_handle) { | |
4109 | IBM_ACPIHANDLE_INIT(vid); | |
4110 | } | |
4111 | if (!vid_handle) | |
4112 | return 0; | |
4113 | ||
4114 | /* Search for a BCLL package with 16 levels */ | |
4115 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
4116 | brightness_find_bcll, NULL, &found_node); | |
4117 | ||
4118 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4119 | } | |
4120 | ||
e11e211a HMH |
4121 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4122 | void *context, void **rv) | |
4123 | { | |
4124 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4125 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4126 | ||
4127 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4128 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4129 | *rv = handle; | |
4130 | return AE_CTRL_TERMINATE; | |
4131 | } else { | |
4132 | return AE_OK; | |
4133 | } | |
4134 | } | |
4135 | ||
4136 | static int __init brightness_check_std_acpi_support(void) | |
4137 | { | |
4138 | int status; | |
4139 | void *found_node = NULL; | |
4140 | ||
4141 | if (!vid_handle) { | |
4142 | IBM_ACPIHANDLE_INIT(vid); | |
4143 | } | |
4144 | if (!vid_handle) | |
4145 | return 0; | |
4146 | ||
4147 | /* Search for a _BCL method, but don't execute it */ | |
4148 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
4149 | brightness_find_bcl, NULL, &found_node); | |
4150 | ||
4151 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4152 | } | |
4153 | ||
a5763f22 | 4154 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4155 | { |
4156 | int b; | |
4157 | ||
fe08bc4b HMH |
4158 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4159 | ||
f432255e HMH |
4160 | mutex_init(&brightness_mutex); |
4161 | ||
87cc537a HMH |
4162 | if (!brightness_enable) { |
4163 | dbg_printk(TPACPI_DBG_INIT, | |
4164 | "brightness support disabled by module parameter\n"); | |
4165 | return 1; | |
e11e211a HMH |
4166 | } else if (brightness_enable > 1) { |
4167 | if (brightness_check_std_acpi_support()) { | |
4168 | printk(IBM_NOTICE | |
4169 | "standard ACPI backlight interface available, not loading native one...\n"); | |
4170 | return 1; | |
4171 | } | |
87cc537a HMH |
4172 | } |
4173 | ||
24d3b774 HMH |
4174 | if (!brightness_mode) { |
4175 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4176 | brightness_mode = 2; | |
4177 | else | |
4178 | brightness_mode = 3; | |
4179 | ||
4180 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4181 | brightness_mode); | |
4182 | } | |
4183 | ||
4184 | if (brightness_mode > 3) | |
4185 | return -EINVAL; | |
4186 | ||
a3f104c0 HMH |
4187 | tp_features.bright_16levels = |
4188 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4189 | brightness_check_levels(); | |
4190 | ||
56b6aeb0 HMH |
4191 | b = brightness_get(NULL); |
4192 | if (b < 0) | |
24d3b774 | 4193 | return 1; |
56b6aeb0 | 4194 | |
a3f104c0 HMH |
4195 | if (tp_features.bright_16levels) |
4196 | printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n"); | |
4197 | ||
7d5a015e HMH |
4198 | ibm_backlight_device = backlight_device_register( |
4199 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4200 | &ibm_backlight_data); | |
56b6aeb0 HMH |
4201 | if (IS_ERR(ibm_backlight_device)) { |
4202 | printk(IBM_ERR "Could not register backlight device\n"); | |
4203 | return PTR_ERR(ibm_backlight_device); | |
4204 | } | |
fe08bc4b | 4205 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4206 | |
a3f104c0 HMH |
4207 | ibm_backlight_device->props.max_brightness = |
4208 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4209 | ibm_backlight_device->props.brightness = b; |
4210 | backlight_update_status(ibm_backlight_device); | |
4211 | ||
4212 | return 0; | |
4213 | } | |
4214 | ||
4215 | static void brightness_exit(void) | |
4216 | { | |
4217 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4218 | vdbg_printk(TPACPI_DBG_EXIT, |
4219 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4220 | backlight_device_unregister(ibm_backlight_device); |
4221 | ibm_backlight_device = NULL; | |
4222 | } | |
4223 | } | |
4224 | ||
56b6aeb0 HMH |
4225 | static int brightness_read(char *p) |
4226 | { | |
4227 | int len = 0; | |
4228 | int level; | |
4229 | ||
4230 | if ((level = brightness_get(NULL)) < 0) { | |
4231 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4232 | } else { | |
a3f104c0 | 4233 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4234 | len += sprintf(p + len, "commands:\tup, down\n"); |
4235 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4236 | " (<level> is 0-%d)\n", |
4237 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4238 | } |
4239 | ||
4240 | return len; | |
4241 | } | |
4242 | ||
8acb0250 HM |
4243 | static int brightness_write(char *buf) |
4244 | { | |
4245 | int level; | |
4273af8d | 4246 | int rc; |
1da177e4 | 4247 | char *cmd; |
a3f104c0 | 4248 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4249 | |
4273af8d HMH |
4250 | level = brightness_get(NULL); |
4251 | if (level < 0) | |
4252 | return level; | |
78f81cc4 | 4253 | |
4273af8d | 4254 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4255 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4256 | if (level < max_level) |
4257 | level++; | |
78f81cc4 | 4258 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4259 | if (level > 0) |
4260 | level--; | |
4261 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4262 | level >= 0 && level <= max_level) { | |
4263 | /* new level set */ | |
78f81cc4 BD |
4264 | } else |
4265 | return -EINVAL; | |
78f81cc4 BD |
4266 | } |
4267 | ||
4273af8d HMH |
4268 | /* |
4269 | * Now we know what the final level should be, so we try to set it. | |
4270 | * Doing it this way makes the syscall restartable in case of EINTR | |
4271 | */ | |
4272 | rc = brightness_set(level); | |
4273 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4274 | } |
4275 | ||
a5763f22 HMH |
4276 | static struct ibm_struct brightness_driver_data = { |
4277 | .name = "brightness", | |
4278 | .read = brightness_read, | |
4279 | .write = brightness_write, | |
4280 | .exit = brightness_exit, | |
4281 | }; | |
4282 | ||
56b6aeb0 HMH |
4283 | /************************************************************************* |
4284 | * Volume subdriver | |
4285 | */ | |
fb87a811 | 4286 | |
f74a27d4 HMH |
4287 | static int volume_offset = 0x30; |
4288 | ||
78f81cc4 BD |
4289 | static int volume_read(char *p) |
4290 | { | |
4291 | int len = 0; | |
4292 | u8 level; | |
4293 | ||
4294 | if (!acpi_ec_read(volume_offset, &level)) { | |
4295 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4296 | } else { | |
4297 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4298 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4299 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4300 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4301 | " (<level> is 0-15)\n"); | |
4302 | } | |
4303 | ||
4304 | return len; | |
4305 | } | |
4306 | ||
78f81cc4 BD |
4307 | static int volume_write(char *buf) |
4308 | { | |
4309 | int cmos_cmd, inc, i; | |
4310 | u8 level, mute; | |
4311 | int new_level, new_mute; | |
4312 | char *cmd; | |
4313 | ||
4314 | while ((cmd = next_cmd(&buf))) { | |
4315 | if (!acpi_ec_read(volume_offset, &level)) | |
4316 | return -EIO; | |
4317 | new_mute = mute = level & 0x40; | |
4318 | new_level = level = level & 0xf; | |
4319 | ||
4320 | if (strlencmp(cmd, "up") == 0) { | |
4321 | if (mute) | |
4322 | new_mute = 0; | |
4323 | else | |
4324 | new_level = level == 15 ? 15 : level + 1; | |
4325 | } else if (strlencmp(cmd, "down") == 0) { | |
4326 | if (mute) | |
4327 | new_mute = 0; | |
4328 | else | |
4329 | new_level = level == 0 ? 0 : level - 1; | |
4330 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4331 | new_level >= 0 && new_level <= 15) { | |
4332 | /* new_level set */ | |
4333 | } else if (strlencmp(cmd, "mute") == 0) { | |
4334 | new_mute = 0x40; | |
1da177e4 LT |
4335 | } else |
4336 | return -EINVAL; | |
4337 | ||
78f81cc4 | 4338 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 4339 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
4340 | inc = new_level > level ? 1 : -1; |
4341 | ||
c9bea99c | 4342 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4343 | !acpi_ec_write(volume_offset, level))) |
4344 | return -EIO; | |
4345 | ||
4346 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4347 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4348 | !acpi_ec_write(volume_offset, i + inc)) |
4349 | return -EIO; | |
4350 | ||
c9bea99c | 4351 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
4352 | !acpi_ec_write(volume_offset, |
4353 | new_level + mute))) | |
4354 | return -EIO; | |
4355 | } | |
4356 | ||
4357 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 4358 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 4359 | |
c9bea99c | 4360 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4361 | !acpi_ec_write(volume_offset, level + new_mute)) |
4362 | return -EIO; | |
4363 | } | |
4364 | } | |
4365 | ||
4366 | return 0; | |
4367 | } | |
4368 | ||
a5763f22 HMH |
4369 | static struct ibm_struct volume_driver_data = { |
4370 | .name = "volume", | |
4371 | .read = volume_read, | |
4372 | .write = volume_write, | |
4373 | }; | |
56b6aeb0 HMH |
4374 | |
4375 | /************************************************************************* | |
4376 | * Fan subdriver | |
4377 | */ | |
4378 | ||
4379 | /* | |
4380 | * FAN ACCESS MODES | |
4381 | * | |
efa27145 | 4382 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4383 | * ACPI GFAN method: returns fan level |
4384 | * | |
efa27145 | 4385 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4386 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4387 | * |
efa27145 | 4388 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4389 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4390 | * | |
f51d1a39 HMH |
4391 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4392 | * it for writing. | |
56b6aeb0 | 4393 | * |
efa27145 | 4394 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4395 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4396 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4397 | * |
4398 | * Fan speed changes of any sort (including those caused by the | |
4399 | * disengaged mode) are usually done slowly by the firmware as the | |
4400 | * maximum ammount of fan duty cycle change per second seems to be | |
4401 | * limited. | |
4402 | * | |
4403 | * Reading is not available if GFAN exists. | |
4404 | * Writing is not available if SFAN exists. | |
4405 | * | |
4406 | * Bits | |
4407 | * 7 automatic mode engaged; | |
4408 | * (default operation mode of the ThinkPad) | |
4409 | * fan level is ignored in this mode. | |
f51d1a39 | 4410 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4411 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4412 | * the tachometer while the fan controller ramps up |
4413 | * the speed (which can take up to a few *minutes*). | |
4414 | * Speeds up fan to 100% duty-cycle, which is far above | |
4415 | * the standard RPM levels. It is not impossible that | |
4416 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4417 | * 5-3 unused in some models. Extra bits for fan level |
4418 | * in others, but still useless as all values above | |
4419 | * 7 map to the same speed as level 7 in these models. | |
4420 | * 2-0 fan level (0..7 usually) | |
4421 | * 0x00 = stop | |
4422 | * 0x07 = max (set when temperatures critical) | |
4423 | * Some ThinkPads may have other levels, see | |
efa27145 | 4424 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4425 | * |
4426 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4427 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4428 | * does so, its initial value is meaningless (0x07). | |
4429 | * | |
4430 | * For firmware bugs, refer to: | |
4431 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4432 | * | |
4433 | * ---- | |
4434 | * | |
4435 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4436 | * Main fan tachometer reading (in RPM) | |
4437 | * | |
4438 | * This register is present on all ThinkPads with a new-style EC, and | |
4439 | * it is known not to be present on the A21m/e, and T22, as there is | |
4440 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4441 | * ThinkPads from this same time period (and earlier) probably lack the | |
4442 | * tachometer as well. | |
4443 | * | |
4444 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4445 | * was never fixed by IBM to report the EC firmware version string | |
4446 | * probably support the tachometer (like the early X models), so | |
4447 | * detecting it is quite hard. We need more data to know for sure. | |
4448 | * | |
4449 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4450 | * might result. | |
4451 | * | |
f51d1a39 HMH |
4452 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4453 | * mode. | |
56b6aeb0 HMH |
4454 | * |
4455 | * For firmware bugs, refer to: | |
4456 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4457 | * | |
efa27145 | 4458 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4459 | * ThinkPad X31, X40, X41. Not available in the X60. |
4460 | * | |
4461 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4462 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4463 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4464 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4465 | * | |
4466 | * The speeds are stored on handles | |
4467 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4468 | * | |
4469 | * There are three default speed sets, acessible as handles: | |
4470 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4471 | * | |
4472 | * ACPI DSDT switches which set is in use depending on various | |
4473 | * factors. | |
4474 | * | |
efa27145 | 4475 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4476 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4477 | * but the ACPI tables just mention level 7. | |
4478 | */ | |
4479 | ||
f74a27d4 HMH |
4480 | enum { /* Fan control constants */ |
4481 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4482 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4483 | * 0x84 must be read before 0x85 */ | |
4484 | ||
4485 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4486 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4487 | ||
4488 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4489 | }; | |
4490 | ||
4491 | enum fan_status_access_mode { | |
4492 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4493 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4494 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4495 | }; | |
4496 | ||
4497 | enum fan_control_access_mode { | |
4498 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4499 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4500 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4501 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4502 | }; | |
4503 | ||
4504 | enum fan_control_commands { | |
4505 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4506 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4507 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4508 | * and also watchdog cmd */ | |
4509 | }; | |
4510 | ||
4511 | static int fan_control_allowed; | |
4512 | ||
69ba91cb HMH |
4513 | static enum fan_status_access_mode fan_status_access_mode; |
4514 | static enum fan_control_access_mode fan_control_access_mode; | |
4515 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4516 | |
778b4d74 | 4517 | static u8 fan_control_initial_status; |
fe98a52c | 4518 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4519 | static int fan_watchdog_maxinterval; |
4520 | ||
4521 | static struct mutex fan_mutex; | |
778b4d74 | 4522 | |
25c68a33 | 4523 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4524 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4525 | |
56b6aeb0 HMH |
4526 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4527 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
4528 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
4529 | ); /* all others */ | |
4530 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
4531 | "JFNS", /* 770x-JL */ | |
4532 | ); /* all others */ | |
4533 | ||
fe98a52c | 4534 | /* |
b21a15f6 | 4535 | * Call with fan_mutex held |
fe98a52c | 4536 | */ |
b21a15f6 | 4537 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4538 | { |
b21a15f6 HMH |
4539 | if ((status & |
4540 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4541 | if (status > 7) | |
4542 | fan_control_desired_level = 7; | |
4543 | else | |
4544 | fan_control_desired_level = status; | |
4545 | } | |
4546 | } | |
fe98a52c | 4547 | |
b21a15f6 HMH |
4548 | static int fan_get_status(u8 *status) |
4549 | { | |
4550 | u8 s; | |
fe98a52c | 4551 | |
b21a15f6 HMH |
4552 | /* TODO: |
4553 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4554 | |
b21a15f6 HMH |
4555 | switch (fan_status_access_mode) { |
4556 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4557 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4558 | |
b21a15f6 HMH |
4559 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4560 | return -EIO; | |
fe98a52c | 4561 | |
b21a15f6 HMH |
4562 | if (likely(status)) |
4563 | *status = s & 0x07; | |
fe98a52c | 4564 | |
b21a15f6 HMH |
4565 | break; |
4566 | ||
4567 | case TPACPI_FAN_RD_TPEC: | |
4568 | /* all except 570, 600e/x, 770e, 770x */ | |
4569 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4570 | return -EIO; | |
4571 | ||
4572 | if (likely(status)) | |
4573 | *status = s; | |
fe98a52c | 4574 | |
fe98a52c | 4575 | break; |
b21a15f6 | 4576 | |
fe98a52c | 4577 | default: |
b21a15f6 | 4578 | return -ENXIO; |
fe98a52c HMH |
4579 | } |
4580 | ||
b21a15f6 HMH |
4581 | return 0; |
4582 | } | |
fe98a52c | 4583 | |
b21a15f6 HMH |
4584 | static int fan_get_status_safe(u8 *status) |
4585 | { | |
4586 | int rc; | |
4587 | u8 s; | |
fe98a52c | 4588 | |
b21a15f6 HMH |
4589 | if (mutex_lock_interruptible(&fan_mutex)) |
4590 | return -ERESTARTSYS; | |
4591 | rc = fan_get_status(&s); | |
4592 | if (!rc) | |
4593 | fan_update_desired_level(s); | |
4594 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4595 | |
b21a15f6 HMH |
4596 | if (status) |
4597 | *status = s; | |
fe98a52c | 4598 | |
b21a15f6 HMH |
4599 | return rc; |
4600 | } | |
4601 | ||
4602 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4603 | { |
b21a15f6 | 4604 | u8 hi, lo; |
fe98a52c | 4605 | |
b21a15f6 HMH |
4606 | switch (fan_status_access_mode) { |
4607 | case TPACPI_FAN_RD_TPEC: | |
4608 | /* all except 570, 600e/x, 770e, 770x */ | |
4609 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4610 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4611 | return -EIO; | |
fe98a52c | 4612 | |
b21a15f6 HMH |
4613 | if (likely(speed)) |
4614 | *speed = (hi << 8) | lo; | |
fe98a52c | 4615 | |
b21a15f6 | 4616 | break; |
fe98a52c | 4617 | |
b21a15f6 HMH |
4618 | default: |
4619 | return -ENXIO; | |
4620 | } | |
fe98a52c | 4621 | |
b21a15f6 | 4622 | return 0; |
fe98a52c HMH |
4623 | } |
4624 | ||
b21a15f6 | 4625 | static int fan_set_level(int level) |
fe98a52c | 4626 | { |
b21a15f6 HMH |
4627 | if (!fan_control_allowed) |
4628 | return -EPERM; | |
fe98a52c | 4629 | |
b21a15f6 HMH |
4630 | switch (fan_control_access_mode) { |
4631 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4632 | if (level >= 0 && level <= 7) { | |
4633 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4634 | return -EIO; | |
4635 | } else | |
4636 | return -EINVAL; | |
4637 | break; | |
fe98a52c | 4638 | |
b21a15f6 HMH |
4639 | case TPACPI_FAN_WR_ACPI_FANS: |
4640 | case TPACPI_FAN_WR_TPEC: | |
4641 | if ((level != TP_EC_FAN_AUTO) && | |
4642 | (level != TP_EC_FAN_FULLSPEED) && | |
4643 | ((level < 0) || (level > 7))) | |
4644 | return -EINVAL; | |
fe98a52c | 4645 | |
b21a15f6 HMH |
4646 | /* safety net should the EC not support AUTO |
4647 | * or FULLSPEED mode bits and just ignore them */ | |
4648 | if (level & TP_EC_FAN_FULLSPEED) | |
4649 | level |= 7; /* safety min speed 7 */ | |
4650 | else if (level & TP_EC_FAN_FULLSPEED) | |
4651 | level |= 4; /* safety min speed 4 */ | |
fe98a52c | 4652 | |
b21a15f6 HMH |
4653 | if (!acpi_ec_write(fan_status_offset, level)) |
4654 | return -EIO; | |
4655 | else | |
4656 | tp_features.fan_ctrl_status_undef = 0; | |
4657 | break; | |
fe98a52c | 4658 | |
b21a15f6 HMH |
4659 | default: |
4660 | return -ENXIO; | |
4661 | } | |
4662 | return 0; | |
fe98a52c HMH |
4663 | } |
4664 | ||
b21a15f6 | 4665 | static int fan_set_level_safe(int level) |
fe98a52c | 4666 | { |
b21a15f6 | 4667 | int rc; |
fe98a52c | 4668 | |
b21a15f6 HMH |
4669 | if (!fan_control_allowed) |
4670 | return -EPERM; | |
fe98a52c | 4671 | |
b21a15f6 HMH |
4672 | if (mutex_lock_interruptible(&fan_mutex)) |
4673 | return -ERESTARTSYS; | |
fe98a52c | 4674 | |
b21a15f6 HMH |
4675 | if (level == TPACPI_FAN_LAST_LEVEL) |
4676 | level = fan_control_desired_level; | |
fe98a52c | 4677 | |
b21a15f6 HMH |
4678 | rc = fan_set_level(level); |
4679 | if (!rc) | |
4680 | fan_update_desired_level(level); | |
4681 | ||
4682 | mutex_unlock(&fan_mutex); | |
4683 | return rc; | |
fe98a52c HMH |
4684 | } |
4685 | ||
b21a15f6 | 4686 | static int fan_set_enable(void) |
fe98a52c | 4687 | { |
b21a15f6 HMH |
4688 | u8 s; |
4689 | int rc; | |
fe98a52c | 4690 | |
ecf2a80a HMH |
4691 | if (!fan_control_allowed) |
4692 | return -EPERM; | |
4693 | ||
b21a15f6 HMH |
4694 | if (mutex_lock_interruptible(&fan_mutex)) |
4695 | return -ERESTARTSYS; | |
fe98a52c | 4696 | |
b21a15f6 HMH |
4697 | switch (fan_control_access_mode) { |
4698 | case TPACPI_FAN_WR_ACPI_FANS: | |
4699 | case TPACPI_FAN_WR_TPEC: | |
4700 | rc = fan_get_status(&s); | |
4701 | if (rc < 0) | |
4702 | break; | |
fe98a52c | 4703 | |
b21a15f6 HMH |
4704 | /* Don't go out of emergency fan mode */ |
4705 | if (s != 7) { | |
4706 | s &= 0x07; | |
4707 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4708 | } | |
fe98a52c | 4709 | |
b21a15f6 HMH |
4710 | if (!acpi_ec_write(fan_status_offset, s)) |
4711 | rc = -EIO; | |
4712 | else { | |
4713 | tp_features.fan_ctrl_status_undef = 0; | |
4714 | rc = 0; | |
4715 | } | |
4716 | break; | |
fe98a52c | 4717 | |
b21a15f6 HMH |
4718 | case TPACPI_FAN_WR_ACPI_SFAN: |
4719 | rc = fan_get_status(&s); | |
4720 | if (rc < 0) | |
4721 | break; | |
fe98a52c | 4722 | |
b21a15f6 | 4723 | s &= 0x07; |
fe98a52c | 4724 | |
b21a15f6 HMH |
4725 | /* Set fan to at least level 4 */ |
4726 | s |= 4; | |
fe08bc4b | 4727 | |
b21a15f6 HMH |
4728 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
4729 | rc= -EIO; | |
4730 | else | |
4731 | rc = 0; | |
4732 | break; | |
78f81cc4 | 4733 | |
b21a15f6 HMH |
4734 | default: |
4735 | rc = -ENXIO; | |
4736 | } | |
5fba344c | 4737 | |
b21a15f6 HMH |
4738 | mutex_unlock(&fan_mutex); |
4739 | return rc; | |
69ba91cb | 4740 | } |
78f81cc4 | 4741 | |
b21a15f6 | 4742 | static int fan_set_disable(void) |
78f81cc4 | 4743 | { |
b21a15f6 | 4744 | int rc; |
c52f0aa5 | 4745 | |
b21a15f6 HMH |
4746 | if (!fan_control_allowed) |
4747 | return -EPERM; | |
78f81cc4 | 4748 | |
b21a15f6 HMH |
4749 | if (mutex_lock_interruptible(&fan_mutex)) |
4750 | return -ERESTARTSYS; | |
3ef8a609 | 4751 | |
b21a15f6 HMH |
4752 | rc = 0; |
4753 | switch (fan_control_access_mode) { | |
4754 | case TPACPI_FAN_WR_ACPI_FANS: | |
4755 | case TPACPI_FAN_WR_TPEC: | |
4756 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
4757 | rc = -EIO; | |
4758 | else { | |
4759 | fan_control_desired_level = 0; | |
4760 | tp_features.fan_ctrl_status_undef = 0; | |
4761 | } | |
3ef8a609 HMH |
4762 | break; |
4763 | ||
b21a15f6 HMH |
4764 | case TPACPI_FAN_WR_ACPI_SFAN: |
4765 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
4766 | rc = -EIO; | |
4767 | else | |
4768 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
4769 | break; |
4770 | ||
4771 | default: | |
b21a15f6 | 4772 | rc = -ENXIO; |
78f81cc4 BD |
4773 | } |
4774 | ||
fe98a52c | 4775 | |
fe98a52c | 4776 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
4777 | return rc; |
4778 | } | |
4779 | ||
b21a15f6 | 4780 | static int fan_set_speed(int speed) |
c52f0aa5 | 4781 | { |
b21a15f6 | 4782 | int rc; |
c52f0aa5 | 4783 | |
b21a15f6 HMH |
4784 | if (!fan_control_allowed) |
4785 | return -EPERM; | |
3ef8a609 | 4786 | |
b21a15f6 HMH |
4787 | if (mutex_lock_interruptible(&fan_mutex)) |
4788 | return -ERESTARTSYS; | |
c52f0aa5 | 4789 | |
b21a15f6 HMH |
4790 | rc = 0; |
4791 | switch (fan_control_access_mode) { | |
4792 | case TPACPI_FAN_WR_ACPI_FANS: | |
4793 | if (speed >= 0 && speed <= 65535) { | |
4794 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4795 | speed, speed, speed)) | |
4796 | rc = -EIO; | |
4797 | } else | |
4798 | rc = -EINVAL; | |
c52f0aa5 HMH |
4799 | break; |
4800 | ||
4801 | default: | |
b21a15f6 | 4802 | rc = -ENXIO; |
c52f0aa5 HMH |
4803 | } |
4804 | ||
b21a15f6 HMH |
4805 | mutex_unlock(&fan_mutex); |
4806 | return rc; | |
16663a87 HMH |
4807 | } |
4808 | ||
4809 | static void fan_watchdog_reset(void) | |
4810 | { | |
94954cc6 | 4811 | static int fan_watchdog_active; |
16663a87 | 4812 | |
4985cd0a HMH |
4813 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
4814 | return; | |
4815 | ||
16663a87 HMH |
4816 | if (fan_watchdog_active) |
4817 | cancel_delayed_work(&fan_watchdog_task); | |
4818 | ||
8fef502e HMH |
4819 | if (fan_watchdog_maxinterval > 0 && |
4820 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
4821 | fan_watchdog_active = 1; |
4822 | if (!schedule_delayed_work(&fan_watchdog_task, | |
4823 | msecs_to_jiffies(fan_watchdog_maxinterval | |
4824 | * 1000))) { | |
4825 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
4826 | "watchdog will not trigger\n"); | |
4827 | } | |
4828 | } else | |
4829 | fan_watchdog_active = 0; | |
4830 | } | |
4831 | ||
b21a15f6 | 4832 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 4833 | { |
b21a15f6 | 4834 | int rc; |
18ad7996 | 4835 | |
b21a15f6 HMH |
4836 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
4837 | return; | |
a12095c2 | 4838 | |
b21a15f6 HMH |
4839 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
4840 | rc = fan_set_enable(); | |
4841 | if (rc < 0) { | |
4842 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
4843 | "will try again later...\n", -rc); | |
4844 | /* reschedule for later */ | |
4845 | fan_watchdog_reset(); | |
4846 | } | |
4847 | } | |
eaa7571b | 4848 | |
b21a15f6 HMH |
4849 | /* |
4850 | * SYSFS fan layout: hwmon compatible (device) | |
4851 | * | |
4852 | * pwm*_enable: | |
4853 | * 0: "disengaged" mode | |
4854 | * 1: manual mode | |
4855 | * 2: native EC "auto" mode (recommended, hardware default) | |
4856 | * | |
4857 | * pwm*: set speed in manual mode, ignored otherwise. | |
4858 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
4859 | * interpolation. | |
4860 | * | |
4861 | * fan*_input: tachometer reading, RPM | |
4862 | * | |
4863 | * | |
4864 | * SYSFS fan layout: extensions | |
4865 | * | |
4866 | * fan_watchdog (driver): | |
4867 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
4868 | */ | |
4869 | ||
4870 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
4871 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
4872 | struct device_attribute *attr, | |
4873 | char *buf) | |
4874 | { | |
4875 | int res, mode; | |
4876 | u8 status; | |
4877 | ||
4878 | res = fan_get_status_safe(&status); | |
4879 | if (res) | |
4880 | return res; | |
4881 | ||
4882 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4883 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 4884 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
4885 | } else { |
4886 | /* Return most likely status. In fact, it | |
4887 | * might be the only possible status */ | |
4888 | status = TP_EC_FAN_AUTO; | |
4889 | } | |
4890 | } | |
4891 | ||
4892 | if (status & TP_EC_FAN_FULLSPEED) { | |
4893 | mode = 0; | |
4894 | } else if (status & TP_EC_FAN_AUTO) { | |
4895 | mode = 2; | |
4896 | } else | |
4897 | mode = 1; | |
4898 | ||
4899 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
4900 | } | |
a12095c2 | 4901 | |
b21a15f6 HMH |
4902 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
4903 | struct device_attribute *attr, | |
4904 | const char *buf, size_t count) | |
4905 | { | |
4906 | unsigned long t; | |
4907 | int res, level; | |
4908 | ||
4909 | if (parse_strtoul(buf, 2, &t)) | |
4910 | return -EINVAL; | |
4911 | ||
4912 | switch (t) { | |
4913 | case 0: | |
4914 | level = TP_EC_FAN_FULLSPEED; | |
4915 | break; | |
4916 | case 1: | |
4917 | level = TPACPI_FAN_LAST_LEVEL; | |
4918 | break; | |
4919 | case 2: | |
4920 | level = TP_EC_FAN_AUTO; | |
4921 | break; | |
4922 | case 3: | |
4923 | /* reserved for software-controlled auto mode */ | |
4924 | return -ENOSYS; | |
18ad7996 | 4925 | default: |
b21a15f6 | 4926 | return -EINVAL; |
18ad7996 | 4927 | } |
b21a15f6 HMH |
4928 | |
4929 | res = fan_set_level_safe(level); | |
4930 | if (res == -ENXIO) | |
4931 | return -EINVAL; | |
4932 | else if (res < 0) | |
4933 | return res; | |
4934 | ||
4935 | fan_watchdog_reset(); | |
4936 | ||
4937 | return count; | |
18ad7996 HMH |
4938 | } |
4939 | ||
b21a15f6 HMH |
4940 | static struct device_attribute dev_attr_fan_pwm1_enable = |
4941 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
4942 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
4943 | ||
4944 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
4945 | static ssize_t fan_pwm1_show(struct device *dev, | |
4946 | struct device_attribute *attr, | |
4947 | char *buf) | |
fe98a52c | 4948 | { |
b21a15f6 HMH |
4949 | int res; |
4950 | u8 status; | |
fe98a52c | 4951 | |
b21a15f6 HMH |
4952 | res = fan_get_status_safe(&status); |
4953 | if (res) | |
4954 | return res; | |
ecf2a80a | 4955 | |
b21a15f6 HMH |
4956 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
4957 | if (status != fan_control_initial_status) { | |
4958 | tp_features.fan_ctrl_status_undef = 0; | |
4959 | } else { | |
4960 | status = TP_EC_FAN_AUTO; | |
4961 | } | |
4962 | } | |
fe98a52c | 4963 | |
b21a15f6 HMH |
4964 | if ((status & |
4965 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
4966 | status = fan_control_desired_level; | |
fe98a52c | 4967 | |
b21a15f6 HMH |
4968 | if (status > 7) |
4969 | status = 7; | |
fe98a52c | 4970 | |
b21a15f6 | 4971 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
4972 | } |
4973 | ||
b21a15f6 HMH |
4974 | static ssize_t fan_pwm1_store(struct device *dev, |
4975 | struct device_attribute *attr, | |
4976 | const char *buf, size_t count) | |
18ad7996 | 4977 | { |
b21a15f6 | 4978 | unsigned long s; |
1c6a334e | 4979 | int rc; |
b21a15f6 | 4980 | u8 status, newlevel; |
1c6a334e | 4981 | |
b21a15f6 HMH |
4982 | if (parse_strtoul(buf, 255, &s)) |
4983 | return -EINVAL; | |
4984 | ||
4985 | /* scale down from 0-255 to 0-7 */ | |
4986 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 4987 | |
fc589a3c HMH |
4988 | if (mutex_lock_interruptible(&fan_mutex)) |
4989 | return -ERESTARTSYS; | |
40ca9fdf | 4990 | |
b21a15f6 HMH |
4991 | rc = fan_get_status(&status); |
4992 | if (!rc && (status & | |
4993 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4994 | rc = fan_set_level(newlevel); | |
4995 | if (rc == -ENXIO) | |
4996 | rc = -EINVAL; | |
4997 | else if (!rc) { | |
4998 | fan_update_desired_level(newlevel); | |
4999 | fan_watchdog_reset(); | |
eaa7571b | 5000 | } |
b21a15f6 | 5001 | } |
1c6a334e | 5002 | |
b21a15f6 HMH |
5003 | mutex_unlock(&fan_mutex); |
5004 | return (rc)? rc : count; | |
5005 | } | |
1c6a334e | 5006 | |
b21a15f6 HMH |
5007 | static struct device_attribute dev_attr_fan_pwm1 = |
5008 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5009 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5010 | |
b21a15f6 HMH |
5011 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5012 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5013 | struct device_attribute *attr, | |
5014 | char *buf) | |
5015 | { | |
5016 | int res; | |
5017 | unsigned int speed; | |
1c6a334e | 5018 | |
b21a15f6 HMH |
5019 | res = fan_get_speed(&speed); |
5020 | if (res < 0) | |
5021 | return res; | |
1c6a334e | 5022 | |
b21a15f6 HMH |
5023 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5024 | } | |
18ad7996 | 5025 | |
b21a15f6 HMH |
5026 | static struct device_attribute dev_attr_fan_fan1_input = |
5027 | __ATTR(fan1_input, S_IRUGO, | |
5028 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5029 | |
b21a15f6 HMH |
5030 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5031 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5032 | char *buf) | |
5033 | { | |
5034 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5035 | } |
5036 | ||
b21a15f6 HMH |
5037 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5038 | const char *buf, size_t count) | |
18ad7996 | 5039 | { |
b21a15f6 HMH |
5040 | unsigned long t; |
5041 | ||
5042 | if (parse_strtoul(buf, 120, &t)) | |
5043 | return -EINVAL; | |
40ca9fdf | 5044 | |
ecf2a80a HMH |
5045 | if (!fan_control_allowed) |
5046 | return -EPERM; | |
5047 | ||
b21a15f6 HMH |
5048 | fan_watchdog_maxinterval = t; |
5049 | fan_watchdog_reset(); | |
40ca9fdf | 5050 | |
b21a15f6 HMH |
5051 | return count; |
5052 | } | |
5053 | ||
5054 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5055 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5056 | ||
5057 | /* --------------------------------------------------------------------- */ | |
5058 | static struct attribute *fan_attributes[] = { | |
5059 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5060 | &dev_attr_fan_fan1_input.attr, | |
5061 | NULL | |
5062 | }; | |
5063 | ||
5064 | static const struct attribute_group fan_attr_group = { | |
5065 | .attrs = fan_attributes, | |
5066 | }; | |
5067 | ||
5068 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5069 | { | |
5070 | int rc; | |
5071 | ||
5072 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5073 | ||
5074 | mutex_init(&fan_mutex); | |
5075 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5076 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5077 | fan_control_commands = 0; | |
5078 | fan_watchdog_maxinterval = 0; | |
5079 | tp_features.fan_ctrl_status_undef = 0; | |
5080 | fan_control_desired_level = 7; | |
5081 | ||
5082 | IBM_ACPIHANDLE_INIT(fans); | |
5083 | IBM_ACPIHANDLE_INIT(gfan); | |
5084 | IBM_ACPIHANDLE_INIT(sfan); | |
5085 | ||
5086 | if (gfan_handle) { | |
5087 | /* 570, 600e/x, 770e, 770x */ | |
5088 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5089 | } else { | |
5090 | /* all other ThinkPads: note that even old-style | |
5091 | * ThinkPad ECs supports the fan control register */ | |
5092 | if (likely(acpi_ec_read(fan_status_offset, | |
5093 | &fan_control_initial_status))) { | |
5094 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5095 | ||
5096 | /* In some ThinkPads, neither the EC nor the ACPI | |
5097 | * DSDT initialize the fan status, and it ends up | |
5098 | * being set to 0x07 when it *could* be either | |
5099 | * 0x07 or 0x80. | |
5100 | * | |
5101 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5102 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5103 | * to be buggy. */ | |
5104 | if (fan_control_initial_status == 0x07) { | |
5105 | switch (thinkpad_id.ec_model) { | |
5106 | case 0x5931: /* TP-1Y */ | |
5107 | case 0x3837: /* TP-78 */ | |
5108 | case 0x3637: /* TP-76 */ | |
5109 | case 0x3037: /* TP-70 */ | |
5110 | printk(IBM_NOTICE | |
5111 | "fan_init: initial fan status is " | |
5112 | "unknown, assuming it is in auto " | |
5113 | "mode\n"); | |
5114 | tp_features.fan_ctrl_status_undef = 1; | |
5115 | ;; | |
5116 | } | |
5117 | } | |
5118 | } else { | |
5119 | printk(IBM_ERR | |
5120 | "ThinkPad ACPI EC access misbehaving, " | |
5121 | "fan status and control unavailable\n"); | |
5122 | return 1; | |
5123 | } | |
5124 | } | |
5125 | ||
5126 | if (sfan_handle) { | |
5127 | /* 570, 770x-JL */ | |
5128 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5129 | fan_control_commands |= | |
5130 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5131 | } else { | |
5132 | if (!gfan_handle) { | |
5133 | /* gfan without sfan means no fan control */ | |
5134 | /* all other models implement TP EC 0x2f control */ | |
5135 | ||
5136 | if (fans_handle) { | |
5137 | /* X31, X40, X41 */ | |
5138 | fan_control_access_mode = | |
5139 | TPACPI_FAN_WR_ACPI_FANS; | |
5140 | fan_control_commands |= | |
5141 | TPACPI_FAN_CMD_SPEED | | |
5142 | TPACPI_FAN_CMD_LEVEL | | |
5143 | TPACPI_FAN_CMD_ENABLE; | |
5144 | } else { | |
5145 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5146 | fan_control_commands |= | |
5147 | TPACPI_FAN_CMD_LEVEL | | |
5148 | TPACPI_FAN_CMD_ENABLE; | |
5149 | } | |
fe98a52c | 5150 | } |
b21a15f6 | 5151 | } |
18ad7996 | 5152 | |
b21a15f6 HMH |
5153 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5154 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5155 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5156 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5157 | |
b21a15f6 HMH |
5158 | /* fan control master switch */ |
5159 | if (!fan_control_allowed) { | |
5160 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5161 | fan_control_commands = 0; | |
5162 | dbg_printk(TPACPI_DBG_INIT, | |
5163 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5164 | } |
40ca9fdf | 5165 | |
b21a15f6 HMH |
5166 | /* update fan_control_desired_level */ |
5167 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5168 | fan_get_status_safe(NULL); | |
fe98a52c | 5169 | |
b21a15f6 HMH |
5170 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5171 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5172 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5173 | &fan_attr_group); | |
5174 | if (!(rc < 0)) | |
5175 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5176 | &driver_attr_fan_watchdog); | |
5177 | if (rc < 0) | |
5178 | return rc; | |
5179 | return 0; | |
5180 | } else | |
5181 | return 1; | |
56b6aeb0 HMH |
5182 | } |
5183 | ||
b21a15f6 | 5184 | static void fan_exit(void) |
56b6aeb0 | 5185 | { |
b21a15f6 | 5186 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 5187 | |
b21a15f6 HMH |
5188 | /* FIXME: can we really do this unconditionally? */ |
5189 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
5190 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog); | |
40ca9fdf | 5191 | |
b21a15f6 HMH |
5192 | cancel_delayed_work(&fan_watchdog_task); |
5193 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5194 | } |
5195 | ||
5196 | static int fan_read(char *p) | |
5197 | { | |
5198 | int len = 0; | |
5199 | int rc; | |
5200 | u8 status; | |
5201 | unsigned int speed = 0; | |
5202 | ||
5203 | switch (fan_status_access_mode) { | |
efa27145 | 5204 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5205 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 5206 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5207 | return rc; |
5208 | ||
5209 | len += sprintf(p + len, "status:\t\t%s\n" | |
5210 | "level:\t\t%d\n", | |
5211 | (status != 0) ? "enabled" : "disabled", status); | |
5212 | break; | |
5213 | ||
efa27145 | 5214 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5215 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 5216 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5217 | return rc; |
5218 | ||
d8fd94d9 | 5219 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5220 | if (status != fan_control_initial_status) |
d8fd94d9 | 5221 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5222 | else |
5223 | /* Return most likely status. In fact, it | |
5224 | * might be the only possible status */ | |
efa27145 | 5225 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5226 | } |
5227 | ||
5228 | len += sprintf(p + len, "status:\t\t%s\n", | |
5229 | (status != 0) ? "enabled" : "disabled"); | |
5230 | ||
56b6aeb0 HMH |
5231 | if ((rc = fan_get_speed(&speed)) < 0) |
5232 | return rc; | |
5233 | ||
5234 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5235 | ||
efa27145 | 5236 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5237 | /* Disengaged mode takes precedence */ |
5238 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5239 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5240 | len += sprintf(p + len, "level:\t\tauto\n"); |
5241 | else | |
5242 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5243 | break; | |
5244 | ||
efa27145 | 5245 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5246 | default: |
5247 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5248 | } | |
5249 | ||
efa27145 | 5250 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5251 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5252 | ||
5253 | switch (fan_control_access_mode) { | |
efa27145 | 5254 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5255 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5256 | break; | |
5257 | ||
5258 | default: | |
5259 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5260 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5261 | break; |
5262 | } | |
5263 | } | |
18ad7996 | 5264 | |
efa27145 | 5265 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
5266 | len += sprintf(p + len, "commands:\tenable, disable\n" |
5267 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
5268 | "1-120 (seconds))\n"); | |
1da177e4 | 5269 | |
efa27145 | 5270 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5271 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5272 | " (<speed> is 0-65535)\n"); | |
5273 | ||
5274 | return len; | |
78f81cc4 BD |
5275 | } |
5276 | ||
18ad7996 HMH |
5277 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5278 | { | |
5279 | int level; | |
5280 | ||
a12095c2 | 5281 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5282 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
5283 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
5284 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 5285 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5286 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5287 | return 0; |
5288 | ||
fe98a52c | 5289 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
5290 | printk(IBM_ERR "level command accepted for unsupported " |
5291 | "access mode %d", fan_control_access_mode); | |
5292 | ||
5293 | return 1; | |
5294 | } | |
5295 | ||
5296 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5297 | { | |
5298 | if (strlencmp(cmd, "enable") != 0) | |
5299 | return 0; | |
5300 | ||
5301 | if ((*rc = fan_set_enable()) == -ENXIO) | |
5302 | printk(IBM_ERR "enable command accepted for unsupported " | |
5303 | "access mode %d", fan_control_access_mode); | |
5304 | ||
5305 | return 1; | |
5306 | } | |
5307 | ||
5308 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5309 | { | |
5310 | if (strlencmp(cmd, "disable") != 0) | |
5311 | return 0; | |
5312 | ||
5313 | if ((*rc = fan_set_disable()) == -ENXIO) | |
5314 | printk(IBM_ERR "disable command accepted for unsupported " | |
5315 | "access mode %d", fan_control_access_mode); | |
5316 | ||
5317 | return 1; | |
5318 | } | |
5319 | ||
5320 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5321 | { | |
5322 | int speed; | |
5323 | ||
a8b7a662 HMH |
5324 | /* TODO: |
5325 | * Support speed <low> <medium> <high> ? */ | |
5326 | ||
18ad7996 HMH |
5327 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5328 | return 0; | |
5329 | ||
5330 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
5331 | printk(IBM_ERR "speed command accepted for unsupported " | |
5332 | "access mode %d", fan_control_access_mode); | |
5333 | ||
5334 | return 1; | |
5335 | } | |
5336 | ||
16663a87 HMH |
5337 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5338 | { | |
5339 | int interval; | |
5340 | ||
5341 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5342 | return 0; | |
5343 | ||
5344 | if (interval < 0 || interval > 120) | |
5345 | *rc = -EINVAL; | |
5346 | else | |
5347 | fan_watchdog_maxinterval = interval; | |
5348 | ||
5349 | return 1; | |
5350 | } | |
5351 | ||
18ad7996 HMH |
5352 | static int fan_write(char *buf) |
5353 | { | |
5354 | char *cmd; | |
5355 | int rc = 0; | |
5356 | ||
5357 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5358 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5359 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5360 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5361 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5362 | fan_write_cmd_disable(cmd, &rc) || |
5363 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5364 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5365 | fan_write_cmd_speed(cmd, &rc)) |
5366 | ) | |
5367 | rc = -EINVAL; | |
16663a87 HMH |
5368 | else if (!rc) |
5369 | fan_watchdog_reset(); | |
18ad7996 HMH |
5370 | } |
5371 | ||
5372 | return rc; | |
5373 | } | |
5374 | ||
a5763f22 HMH |
5375 | static struct ibm_struct fan_driver_data = { |
5376 | .name = "fan", | |
5377 | .read = fan_read, | |
5378 | .write = fan_write, | |
5379 | .exit = fan_exit, | |
a5763f22 HMH |
5380 | }; |
5381 | ||
56b6aeb0 HMH |
5382 | /**************************************************************************** |
5383 | **************************************************************************** | |
5384 | * | |
5385 | * Infrastructure | |
5386 | * | |
5387 | **************************************************************************** | |
5388 | ****************************************************************************/ | |
5389 | ||
7fd40029 HMH |
5390 | /* sysfs name ---------------------------------------------------------- */ |
5391 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5392 | struct device_attribute *attr, | |
5393 | char *buf) | |
5394 | { | |
5395 | return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME); | |
5396 | } | |
5397 | ||
5398 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5399 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5400 | ||
5401 | /* --------------------------------------------------------------------- */ | |
5402 | ||
56b6aeb0 | 5403 | /* /proc support */ |
94954cc6 | 5404 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5405 | |
56b6aeb0 HMH |
5406 | /* |
5407 | * Module and infrastructure proble, init and exit handling | |
5408 | */ | |
1da177e4 | 5409 | |
b21a15f6 HMH |
5410 | static int force_load; |
5411 | ||
fe08bc4b | 5412 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5413 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5414 | { |
a5763f22 | 5415 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5416 | |
a5763f22 | 5417 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5418 | } |
5419 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5420 | ||
b21a15f6 HMH |
5421 | static void ibm_exit(struct ibm_struct *ibm) |
5422 | { | |
5423 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5424 | ||
5425 | list_del_init(&ibm->all_drivers); | |
5426 | ||
5427 | if (ibm->flags.acpi_notify_installed) { | |
5428 | dbg_printk(TPACPI_DBG_EXIT, | |
5429 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5430 | BUG_ON(!ibm->acpi); | |
5431 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5432 | ibm->acpi->type, | |
5433 | dispatch_acpi_notify); | |
5434 | ibm->flags.acpi_notify_installed = 0; | |
5435 | ibm->flags.acpi_notify_installed = 0; | |
5436 | } | |
5437 | ||
5438 | if (ibm->flags.proc_created) { | |
5439 | dbg_printk(TPACPI_DBG_EXIT, | |
5440 | "%s: remove_proc_entry\n", ibm->name); | |
5441 | remove_proc_entry(ibm->name, proc_dir); | |
5442 | ibm->flags.proc_created = 0; | |
5443 | } | |
5444 | ||
5445 | if (ibm->flags.acpi_driver_registered) { | |
5446 | dbg_printk(TPACPI_DBG_EXIT, | |
5447 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5448 | BUG_ON(!ibm->acpi); | |
5449 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5450 | kfree(ibm->acpi->driver); | |
5451 | ibm->acpi->driver = NULL; | |
5452 | ibm->flags.acpi_driver_registered = 0; | |
5453 | } | |
5454 | ||
5455 | if (ibm->flags.init_called && ibm->exit) { | |
5456 | ibm->exit(); | |
5457 | ibm->flags.init_called = 0; | |
5458 | } | |
5459 | ||
5460 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5461 | } | |
f74a27d4 | 5462 | |
a5763f22 | 5463 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5464 | { |
5465 | int ret; | |
a5763f22 | 5466 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5467 | struct proc_dir_entry *entry; |
5468 | ||
a5763f22 HMH |
5469 | BUG_ON(ibm == NULL); |
5470 | ||
5471 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5472 | ||
92641177 | 5473 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5474 | return 0; |
5475 | ||
fe08bc4b HMH |
5476 | dbg_printk(TPACPI_DBG_INIT, |
5477 | "probing for %s\n", ibm->name); | |
5478 | ||
a5763f22 HMH |
5479 | if (iibm->init) { |
5480 | ret = iibm->init(iibm); | |
5fba344c HMH |
5481 | if (ret > 0) |
5482 | return 0; /* probe failed */ | |
5483 | if (ret) | |
1da177e4 | 5484 | return ret; |
a5763f22 | 5485 | |
92641177 | 5486 | ibm->flags.init_called = 1; |
1da177e4 LT |
5487 | } |
5488 | ||
8d376cd6 HMH |
5489 | if (ibm->acpi) { |
5490 | if (ibm->acpi->hid) { | |
5491 | ret = register_tpacpi_subdriver(ibm); | |
5492 | if (ret) | |
5493 | goto err_out; | |
5494 | } | |
5fba344c | 5495 | |
8d376cd6 HMH |
5496 | if (ibm->acpi->notify) { |
5497 | ret = setup_acpi_notify(ibm); | |
5498 | if (ret == -ENODEV) { | |
5499 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
5500 | ibm->name); | |
5501 | ret = 0; | |
5502 | goto err_out; | |
5503 | } | |
5504 | if (ret < 0) | |
5505 | goto err_out; | |
5fba344c | 5506 | } |
5fba344c HMH |
5507 | } |
5508 | ||
fe08bc4b HMH |
5509 | dbg_printk(TPACPI_DBG_INIT, |
5510 | "%s installed\n", ibm->name); | |
5511 | ||
78f81cc4 BD |
5512 | if (ibm->read) { |
5513 | entry = create_proc_entry(ibm->name, | |
5514 | S_IFREG | S_IRUGO | S_IWUSR, | |
5515 | proc_dir); | |
5516 | if (!entry) { | |
5517 | printk(IBM_ERR "unable to create proc entry %s\n", | |
5518 | ibm->name); | |
5fba344c HMH |
5519 | ret = -ENODEV; |
5520 | goto err_out; | |
78f81cc4 BD |
5521 | } |
5522 | entry->owner = THIS_MODULE; | |
5523 | entry->data = ibm; | |
8d376cd6 | 5524 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5525 | if (ibm->write) |
8d376cd6 | 5526 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5527 | ibm->flags.proc_created = 1; |
78f81cc4 | 5528 | } |
1da177e4 | 5529 | |
a5763f22 HMH |
5530 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5531 | ||
1da177e4 | 5532 | return 0; |
5fba344c HMH |
5533 | |
5534 | err_out: | |
fe08bc4b HMH |
5535 | dbg_printk(TPACPI_DBG_INIT, |
5536 | "%s: at error exit path with result %d\n", | |
5537 | ibm->name, ret); | |
5538 | ||
5fba344c HMH |
5539 | ibm_exit(ibm); |
5540 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5541 | } |
5542 | ||
56b6aeb0 HMH |
5543 | /* Probing */ |
5544 | ||
d5a2f2f1 | 5545 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5546 | { |
1855256c | 5547 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5548 | char ec_fw_string[18]; |
1da177e4 | 5549 | |
d5a2f2f1 HMH |
5550 | if (!tp) |
5551 | return; | |
5552 | ||
5553 | memset(tp, 0, sizeof(*tp)); | |
5554 | ||
5555 | if (dmi_name_in_vendors("IBM")) | |
5556 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5557 | else if (dmi_name_in_vendors("LENOVO")) | |
5558 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5559 | else | |
5560 | return; | |
5561 | ||
5562 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5563 | GFP_KERNEL); | |
5564 | if (!tp->bios_version_str) | |
5565 | return; | |
5566 | tp->bios_model = tp->bios_version_str[0] | |
5567 | | (tp->bios_version_str[1] << 8); | |
5568 | ||
56b6aeb0 HMH |
5569 | /* |
5570 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5571 | * X32 or newer, all Z series; Some models must have an | |
5572 | * up-to-date BIOS or they will not be detected. | |
5573 | * | |
5574 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5575 | */ | |
5576 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5577 | if (sscanf(dev->name, | |
5578 | "IBM ThinkPad Embedded Controller -[%17c", | |
5579 | ec_fw_string) == 1) { | |
5580 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5581 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5582 | |
5583 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5584 | tp->ec_model = ec_fw_string[0] | |
5585 | | (ec_fw_string[1] << 8); | |
5586 | break; | |
78f81cc4 | 5587 | } |
1da177e4 | 5588 | } |
d5a2f2f1 HMH |
5589 | |
5590 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5591 | GFP_KERNEL); | |
5592 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5593 | kfree(tp->model_str); | |
5594 | tp->model_str = NULL; | |
5595 | } | |
1da177e4 LT |
5596 | } |
5597 | ||
5fba344c HMH |
5598 | static int __init probe_for_thinkpad(void) |
5599 | { | |
5600 | int is_thinkpad; | |
5601 | ||
5602 | if (acpi_disabled) | |
5603 | return -ENODEV; | |
5604 | ||
5605 | /* | |
5606 | * Non-ancient models have better DMI tagging, but very old models | |
5607 | * don't. | |
5608 | */ | |
d5a2f2f1 | 5609 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5610 | |
5611 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 5612 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5613 | if (!ec_handle) { |
5614 | if (is_thinkpad) | |
5615 | printk(IBM_ERR | |
5616 | "Not yet supported ThinkPad detected!\n"); | |
5617 | return -ENODEV; | |
5618 | } | |
5619 | ||
0dcef77c HMH |
5620 | /* |
5621 | * Risks a regression on very old machines, but reduces potential | |
5622 | * false positives a damn great deal | |
5623 | */ | |
5624 | if (!is_thinkpad) | |
d5a2f2f1 | 5625 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5626 | |
5627 | if (!is_thinkpad && !force_load) | |
5628 | return -ENODEV; | |
5629 | ||
5fba344c HMH |
5630 | return 0; |
5631 | } | |
5632 | ||
5633 | ||
56b6aeb0 | 5634 | /* Module init, exit, parameters */ |
1da177e4 | 5635 | |
a5763f22 HMH |
5636 | static struct ibm_init_struct ibms_init[] __initdata = { |
5637 | { | |
5638 | .init = thinkpad_acpi_driver_init, | |
5639 | .data = &thinkpad_acpi_driver_data, | |
5640 | }, | |
5641 | { | |
5642 | .init = hotkey_init, | |
5643 | .data = &hotkey_driver_data, | |
5644 | }, | |
5645 | { | |
5646 | .init = bluetooth_init, | |
5647 | .data = &bluetooth_driver_data, | |
5648 | }, | |
5649 | { | |
5650 | .init = wan_init, | |
5651 | .data = &wan_driver_data, | |
5652 | }, | |
5653 | { | |
5654 | .init = video_init, | |
5655 | .data = &video_driver_data, | |
5656 | }, | |
5657 | { | |
5658 | .init = light_init, | |
5659 | .data = &light_driver_data, | |
5660 | }, | |
5661 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5662 | { | |
5663 | .init = dock_init, | |
5664 | .data = &dock_driver_data[0], | |
5665 | }, | |
5666 | { | |
d94a7f16 | 5667 | .init = dock_init2, |
a5763f22 HMH |
5668 | .data = &dock_driver_data[1], |
5669 | }, | |
5670 | #endif | |
5671 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5672 | { | |
5673 | .init = bay_init, | |
5674 | .data = &bay_driver_data, | |
5675 | }, | |
5676 | #endif | |
5677 | { | |
5678 | .init = cmos_init, | |
5679 | .data = &cmos_driver_data, | |
5680 | }, | |
5681 | { | |
5682 | .init = led_init, | |
5683 | .data = &led_driver_data, | |
5684 | }, | |
5685 | { | |
5686 | .init = beep_init, | |
5687 | .data = &beep_driver_data, | |
5688 | }, | |
5689 | { | |
5690 | .init = thermal_init, | |
5691 | .data = &thermal_driver_data, | |
5692 | }, | |
5693 | { | |
5694 | .data = &ecdump_driver_data, | |
5695 | }, | |
5696 | { | |
5697 | .init = brightness_init, | |
5698 | .data = &brightness_driver_data, | |
5699 | }, | |
5700 | { | |
5701 | .data = &volume_driver_data, | |
5702 | }, | |
5703 | { | |
5704 | .init = fan_init, | |
5705 | .data = &fan_driver_data, | |
5706 | }, | |
5707 | }; | |
5708 | ||
3945ac36 | 5709 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5710 | { |
5711 | unsigned int i; | |
a5763f22 | 5712 | struct ibm_struct *ibm; |
1da177e4 | 5713 | |
59f91ff1 HMH |
5714 | if (!kp || !kp->name || !val) |
5715 | return -EINVAL; | |
5716 | ||
a5763f22 HMH |
5717 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5718 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5719 | WARN_ON(ibm == NULL); |
5720 | ||
5721 | if (!ibm || !ibm->name) | |
5722 | continue; | |
a5763f22 HMH |
5723 | |
5724 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5725 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5726 | return -ENOSPC; |
a5763f22 HMH |
5727 | strcpy(ibms_init[i].param, val); |
5728 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5729 | return 0; |
5730 | } | |
a5763f22 | 5731 | } |
1da177e4 | 5732 | |
1da177e4 LT |
5733 | return -EINVAL; |
5734 | } | |
5735 | ||
56b6aeb0 HMH |
5736 | module_param(experimental, int, 0); |
5737 | ||
132ce091 HMH |
5738 | module_param_named(debug, dbg_level, uint, 0); |
5739 | ||
86cc9445 | 5740 | module_param(force_load, bool, 0); |
0dcef77c | 5741 | |
86cc9445 | 5742 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 5743 | |
24d3b774 HMH |
5744 | module_param_named(brightness_mode, brightness_mode, int, 0); |
5745 | ||
87cc537a HMH |
5746 | module_param(brightness_enable, uint, 0); |
5747 | ||
ff80f137 HMH |
5748 | module_param(hotkey_report_mode, uint, 0); |
5749 | ||
1da177e4 LT |
5750 | #define IBM_PARAM(feature) \ |
5751 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
5752 | ||
78f81cc4 BD |
5753 | IBM_PARAM(hotkey); |
5754 | IBM_PARAM(bluetooth); | |
5755 | IBM_PARAM(video); | |
5756 | IBM_PARAM(light); | |
85998248 | 5757 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 5758 | IBM_PARAM(dock); |
63e5f248 | 5759 | #endif |
85998248 | 5760 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 5761 | IBM_PARAM(bay); |
85998248 | 5762 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
5763 | IBM_PARAM(cmos); |
5764 | IBM_PARAM(led); | |
5765 | IBM_PARAM(beep); | |
5766 | IBM_PARAM(ecdump); | |
5767 | IBM_PARAM(brightness); | |
5768 | IBM_PARAM(volume); | |
5769 | IBM_PARAM(fan); | |
5770 | ||
b21a15f6 HMH |
5771 | static void thinkpad_acpi_module_exit(void) |
5772 | { | |
5773 | struct ibm_struct *ibm, *itmp; | |
5774 | ||
5775 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
5776 | ||
5777 | list_for_each_entry_safe_reverse(ibm, itmp, | |
5778 | &tpacpi_all_drivers, | |
5779 | all_drivers) { | |
5780 | ibm_exit(ibm); | |
5781 | } | |
5782 | ||
5783 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
5784 | ||
5785 | if (tpacpi_inputdev) { | |
5786 | if (tp_features.input_device_registered) | |
5787 | input_unregister_device(tpacpi_inputdev); | |
5788 | else | |
5789 | input_free_device(tpacpi_inputdev); | |
5790 | } | |
5791 | ||
5792 | if (tpacpi_hwmon) | |
5793 | hwmon_device_unregister(tpacpi_hwmon); | |
5794 | ||
5795 | if (tp_features.sensors_pdev_attrs_registered) | |
5796 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
5797 | &dev_attr_thinkpad_acpi_pdev_name); | |
5798 | if (tpacpi_sensors_pdev) | |
5799 | platform_device_unregister(tpacpi_sensors_pdev); | |
5800 | if (tpacpi_pdev) | |
5801 | platform_device_unregister(tpacpi_pdev); | |
5802 | ||
5803 | if (tp_features.sensors_pdrv_attrs_registered) | |
5804 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5805 | if (tp_features.platform_drv_attrs_registered) | |
5806 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
5807 | ||
5808 | if (tp_features.sensors_pdrv_registered) | |
5809 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
5810 | ||
5811 | if (tp_features.platform_drv_registered) | |
5812 | platform_driver_unregister(&tpacpi_pdriver); | |
5813 | ||
5814 | if (proc_dir) | |
5815 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); | |
5816 | ||
5817 | kfree(thinkpad_id.bios_version_str); | |
5818 | kfree(thinkpad_id.ec_version_str); | |
5819 | kfree(thinkpad_id.model_str); | |
5820 | } | |
5821 | ||
f74a27d4 | 5822 | |
1def7115 | 5823 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
5824 | { |
5825 | int ret, i; | |
5826 | ||
8fef502e HMH |
5827 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
5828 | ||
ff80f137 HMH |
5829 | /* Parameter checking */ |
5830 | if (hotkey_report_mode > 2) | |
5831 | return -EINVAL; | |
5832 | ||
54ae1501 | 5833 | /* Driver-level probe */ |
d5a2f2f1 HMH |
5834 | |
5835 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 5836 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
5837 | if (ret) { |
5838 | thinkpad_acpi_module_exit(); | |
5fba344c | 5839 | return ret; |
d5a2f2f1 | 5840 | } |
1da177e4 | 5841 | |
54ae1501 | 5842 | /* Driver initialization */ |
d5a2f2f1 | 5843 | |
8d376cd6 HMH |
5844 | IBM_ACPIHANDLE_INIT(ecrd); |
5845 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 5846 | |
8d376cd6 | 5847 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 5848 | if (!proc_dir) { |
8d376cd6 | 5849 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 5850 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5851 | return -ENODEV; |
5852 | } | |
5853 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 5854 | |
54ae1501 HMH |
5855 | ret = platform_driver_register(&tpacpi_pdriver); |
5856 | if (ret) { | |
7fd40029 | 5857 | printk(IBM_ERR "unable to register main platform driver\n"); |
54ae1501 HMH |
5858 | thinkpad_acpi_module_exit(); |
5859 | return ret; | |
5860 | } | |
ac36393d HMH |
5861 | tp_features.platform_drv_registered = 1; |
5862 | ||
7fd40029 HMH |
5863 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
5864 | if (ret) { | |
5865 | printk(IBM_ERR "unable to register hwmon platform driver\n"); | |
5866 | thinkpad_acpi_module_exit(); | |
5867 | return ret; | |
5868 | } | |
5869 | tp_features.sensors_pdrv_registered = 1; | |
5870 | ||
176750d6 | 5871 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
5872 | if (!ret) { |
5873 | tp_features.platform_drv_attrs_registered = 1; | |
5874 | ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5875 | } | |
176750d6 HMH |
5876 | if (ret) { |
5877 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
5878 | thinkpad_acpi_module_exit(); | |
5879 | return ret; | |
5880 | } | |
2369cc94 | 5881 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 5882 | |
54ae1501 HMH |
5883 | |
5884 | /* Device initialization */ | |
5885 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
5886 | NULL, 0); | |
5887 | if (IS_ERR(tpacpi_pdev)) { | |
5888 | ret = PTR_ERR(tpacpi_pdev); | |
5889 | tpacpi_pdev = NULL; | |
5890 | printk(IBM_ERR "unable to register platform device\n"); | |
5891 | thinkpad_acpi_module_exit(); | |
5892 | return ret; | |
5893 | } | |
7fd40029 HMH |
5894 | tpacpi_sensors_pdev = platform_device_register_simple( |
5895 | IBM_HWMON_DRVR_NAME, | |
5896 | -1, NULL, 0); | |
5897 | if (IS_ERR(tpacpi_sensors_pdev)) { | |
5898 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
5899 | tpacpi_sensors_pdev = NULL; | |
5900 | printk(IBM_ERR "unable to register hwmon platform device\n"); | |
5901 | thinkpad_acpi_module_exit(); | |
5902 | return ret; | |
5903 | } | |
5904 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
5905 | &dev_attr_thinkpad_acpi_pdev_name); | |
5906 | if (ret) { | |
5907 | printk(IBM_ERR | |
5908 | "unable to create sysfs hwmon device attributes\n"); | |
5909 | thinkpad_acpi_module_exit(); | |
5910 | return ret; | |
5911 | } | |
5912 | tp_features.sensors_pdev_attrs_registered = 1; | |
5913 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
5914 | if (IS_ERR(tpacpi_hwmon)) { |
5915 | ret = PTR_ERR(tpacpi_hwmon); | |
5916 | tpacpi_hwmon = NULL; | |
5917 | printk(IBM_ERR "unable to register hwmon device\n"); | |
5918 | thinkpad_acpi_module_exit(); | |
5919 | return ret; | |
5920 | } | |
8523ed6f | 5921 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
5922 | tpacpi_inputdev = input_allocate_device(); |
5923 | if (!tpacpi_inputdev) { | |
5924 | printk(IBM_ERR "unable to allocate input device\n"); | |
5925 | thinkpad_acpi_module_exit(); | |
5926 | return -ENOMEM; | |
5927 | } else { | |
5928 | /* Prepare input device, but don't register */ | |
5929 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
5930 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
5931 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
5932 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
5933 | thinkpad_id.vendor : | |
5934 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
5935 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
5936 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
5937 | } | |
a5763f22 HMH |
5938 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5939 | ret = ibm_init(&ibms_init[i]); | |
5940 | if (ret >= 0 && *ibms_init[i].param) | |
5941 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 5942 | if (ret < 0) { |
1def7115 | 5943 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5944 | return ret; |
5945 | } | |
5946 | } | |
7f5d1cd6 HMH |
5947 | ret = input_register_device(tpacpi_inputdev); |
5948 | if (ret < 0) { | |
5949 | printk(IBM_ERR "unable to register input device\n"); | |
5950 | thinkpad_acpi_module_exit(); | |
5951 | return ret; | |
5952 | } else { | |
5953 | tp_features.input_device_registered = 1; | |
5954 | } | |
1da177e4 | 5955 | |
8fef502e | 5956 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
5957 | return 0; |
5958 | } | |
5959 | ||
1def7115 HMH |
5960 | module_init(thinkpad_acpi_module_init); |
5961 | module_exit(thinkpad_acpi_module_exit); |