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: |
643f12db HMH |
29 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
30 | * drivers/misc. | |
f9ff43a6 HMH |
31 | * |
32 | * 2006-11-22 0.13 new maintainer | |
33 | * changelog now lives in git commit history, and will | |
34 | * not be updated further in-file. | |
837ca6dd | 35 | * |
78f81cc4 BD |
36 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
37 | * 2005-03-17 0.11 support for 600e, 770x | |
38 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
39 | * support for 770e, G41 | |
40 | * G40 and G41 don't have a thinklight | |
41 | * temperatures no longer experimental | |
42 | * experimental brightness control | |
43 | * experimental volume control | |
44 | * experimental fan enable/disable | |
837ca6dd | 45 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
46 | * 2005-01-16 0.9 support for 570, R30, R31 |
47 | * ultrabay support on A22p, A3x | |
48 | * limit arg for cmos, led, beep, drop experimental status | |
49 | * more capable led control on A21e, A22p, T20-22, X20 | |
50 | * experimental temperatures and fan speed | |
51 | * experimental embedded controller register dump | |
52 | * mark more functions as __init, drop incorrect __exit | |
53 | * use MODULE_VERSION | |
54 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
55 | * fix parameter passing on module loading | |
56 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
57 | * thanks to Jim Radford <radford@blackbean.org> | |
58 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
59 | * thanks to Chris Wright <chrisw@osdl.org> | |
60 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
61 | * fix led control on A21e | |
62 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
63 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
64 | * proc file format changed | |
65 | * video_switch command | |
66 | * experimental cmos control | |
67 | * experimental led control | |
68 | * experimental acpi sounds | |
78f81cc4 BD |
69 | * 2004-09-16 0.4 support for module parameters |
70 | * hotkey mask can be prefixed by 0x | |
71 | * video output switching | |
72 | * video expansion control | |
73 | * ultrabay eject support | |
74 | * removed lcd brightness/on/off control, didn't work | |
75 | * 2004-08-17 0.3 support for R40 | |
76 | * lcd off, brightness control | |
77 | * thinklight on/off | |
78 | * 2004-08-14 0.2 support for T series, X20 | |
79 | * bluetooth enable/disable | |
80 | * hotkey events disabled by default | |
81 | * removed fan control, currently useless | |
82 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
83 | */ |
84 | ||
0c78039f HMH |
85 | #include <linux/kernel.h> |
86 | #include <linux/module.h> | |
87 | #include <linux/init.h> | |
88 | #include <linux/types.h> | |
89 | #include <linux/string.h> | |
90 | #include <linux/list.h> | |
91 | #include <linux/mutex.h> | |
92 | #include <linux/kthread.h> | |
93 | #include <linux/freezer.h> | |
94 | #include <linux/delay.h> | |
95 | ||
96 | #include <linux/nvram.h> | |
97 | #include <linux/proc_fs.h> | |
98 | #include <linux/sysfs.h> | |
99 | #include <linux/backlight.h> | |
100 | #include <linux/fb.h> | |
101 | #include <linux/platform_device.h> | |
102 | #include <linux/hwmon.h> | |
103 | #include <linux/hwmon-sysfs.h> | |
104 | #include <linux/input.h> | |
105 | #include <asm/uaccess.h> | |
106 | ||
107 | #include <linux/dmi.h> | |
108 | #include <linux/jiffies.h> | |
109 | #include <linux/workqueue.h> | |
110 | ||
111 | #include <acpi/acpi_drivers.h> | |
112 | #include <acpi/acnamesp.h> | |
113 | ||
114 | #include <linux/pci_ids.h> | |
115 | ||
0c78039f HMH |
116 | |
117 | /* ThinkPad CMOS commands */ | |
118 | #define TP_CMOS_VOLUME_DOWN 0 | |
119 | #define TP_CMOS_VOLUME_UP 1 | |
120 | #define TP_CMOS_VOLUME_MUTE 2 | |
121 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
122 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
123 | ||
124 | /* NVRAM Addresses */ | |
125 | enum tp_nvram_addr { | |
126 | TP_NVRAM_ADDR_HK2 = 0x57, | |
127 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
128 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
129 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
130 | TP_NVRAM_ADDR_MIXER = 0x60, | |
131 | }; | |
132 | ||
133 | /* NVRAM bit masks */ | |
134 | enum { | |
135 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
136 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
137 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
138 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
139 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
140 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
141 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
142 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
143 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
144 | TP_NVRAM_MASK_MUTE = 0x40, | |
145 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
146 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
147 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
148 | }; | |
149 | ||
b21a15f6 HMH |
150 | /* ACPI HIDs */ |
151 | #define IBM_HKEY_HID "IBM0068" | |
152 | ||
153 | /* Input IDs */ | |
154 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
155 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
156 | ||
157 | ||
158 | /**************************************************************************** | |
159 | * Main driver | |
160 | */ | |
161 | ||
162 | /* Module */ | |
163 | #define IBM_NAME "thinkpad" | |
164 | #define IBM_DESC "ThinkPad ACPI Extras" | |
165 | #define IBM_FILE IBM_NAME "_acpi" | |
166 | #define IBM_URL "http://ibm-acpi.sf.net/" | |
167 | #define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
168 | ||
169 | #define IBM_PROC_DIR "ibm" | |
170 | #define IBM_ACPI_EVENT_PREFIX "ibm" | |
171 | #define IBM_DRVR_NAME IBM_FILE | |
172 | #define IBM_HWMON_DRVR_NAME IBM_NAME "_hwmon" | |
173 | ||
174 | #define IBM_MAX_ACPI_ARGS 3 | |
175 | ||
176 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
177 | MODULE_DESCRIPTION(IBM_DESC); | |
178 | MODULE_VERSION(IBM_VERSION); | |
179 | MODULE_LICENSE("GPL"); | |
180 | ||
181 | /* Please remove this in year 2009 */ | |
182 | MODULE_ALIAS("ibm_acpi"); | |
183 | ||
184 | /* | |
185 | * DMI matching for module autoloading | |
186 | * | |
187 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
188 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
189 | * | |
190 | * Only models listed in thinkwiki will be supported, so add yours | |
191 | * if it is not there yet. | |
192 | */ | |
193 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
194 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
195 | ||
196 | /* Non-ancient thinkpads */ | |
197 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
198 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
199 | ||
200 | /* Ancient thinkpad BIOSes have to be identified by | |
201 | * BIOS type or model number, and there are far less | |
202 | * BIOS types than model numbers... */ | |
203 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
204 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
205 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
0c78039f HMH |
206 | |
207 | /* Debugging */ | |
b21a15f6 HMH |
208 | #define IBM_LOG IBM_FILE ": " |
209 | #define IBM_ERR KERN_ERR IBM_LOG | |
210 | #define IBM_NOTICE KERN_NOTICE IBM_LOG | |
211 | #define IBM_INFO KERN_INFO IBM_LOG | |
212 | #define IBM_DEBUG KERN_DEBUG IBM_LOG | |
213 | ||
0c78039f HMH |
214 | #define TPACPI_DBG_ALL 0xffff |
215 | #define TPACPI_DBG_ALL 0xffff | |
216 | #define TPACPI_DBG_INIT 0x0001 | |
217 | #define TPACPI_DBG_EXIT 0x0002 | |
218 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
219 | do { if (dbg_level & a_dbg_level) \ | |
220 | printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0) | |
221 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
222 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
223 | dbg_printk(a_dbg_level, format, ## arg) | |
224 | static const char *str_supported(int is_supported); | |
225 | #else | |
226 | #define vdbg_printk(a_dbg_level, format, arg...) | |
227 | #endif | |
228 | ||
b21a15f6 HMH |
229 | #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") |
230 | #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
231 | #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 232 | |
0c78039f HMH |
233 | |
234 | /**************************************************************************** | |
b21a15f6 | 235 | * Driver-wide structs and misc. variables |
0c78039f HMH |
236 | */ |
237 | ||
238 | struct ibm_struct; | |
239 | ||
240 | struct tp_acpi_drv_struct { | |
241 | const struct acpi_device_id *hid; | |
242 | struct acpi_driver *driver; | |
243 | ||
244 | void (*notify) (struct ibm_struct *, u32); | |
245 | acpi_handle *handle; | |
246 | u32 type; | |
247 | struct acpi_device *device; | |
248 | }; | |
249 | ||
250 | struct ibm_struct { | |
251 | char *name; | |
252 | ||
253 | int (*read) (char *); | |
254 | int (*write) (char *); | |
255 | void (*exit) (void); | |
256 | void (*resume) (void); | |
257 | ||
258 | struct list_head all_drivers; | |
259 | ||
260 | struct tp_acpi_drv_struct *acpi; | |
261 | ||
262 | struct { | |
263 | u8 acpi_driver_registered:1; | |
264 | u8 acpi_notify_installed:1; | |
265 | u8 proc_created:1; | |
266 | u8 init_called:1; | |
267 | u8 experimental:1; | |
268 | } flags; | |
269 | }; | |
270 | ||
271 | struct ibm_init_struct { | |
272 | char param[32]; | |
273 | ||
274 | int (*init) (struct ibm_init_struct *); | |
275 | struct ibm_struct *data; | |
276 | }; | |
277 | ||
278 | static struct { | |
279 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
280 | u32 bay_status:1; | |
281 | u32 bay_eject:1; | |
282 | u32 bay_status2:1; | |
283 | u32 bay_eject2:1; | |
284 | #endif | |
285 | u32 bluetooth:1; | |
286 | u32 hotkey:1; | |
287 | u32 hotkey_mask:1; | |
288 | u32 hotkey_wlsw:1; | |
289 | u32 light:1; | |
290 | u32 light_status:1; | |
291 | u32 bright_16levels:1; | |
292 | u32 wan:1; | |
293 | u32 fan_ctrl_status_undef:1; | |
294 | u32 input_device_registered:1; | |
295 | u32 platform_drv_registered:1; | |
296 | u32 platform_drv_attrs_registered:1; | |
297 | u32 sensors_pdrv_registered:1; | |
298 | u32 sensors_pdrv_attrs_registered:1; | |
299 | u32 sensors_pdev_attrs_registered:1; | |
300 | u32 hotkey_poll_active:1; | |
301 | } tp_features; | |
302 | ||
303 | struct thinkpad_id_data { | |
304 | unsigned int vendor; /* ThinkPad vendor: | |
305 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
306 | ||
307 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
308 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
309 | ||
310 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
311 | u16 ec_model; | |
312 | ||
313 | char *model_str; | |
314 | }; | |
0c78039f HMH |
315 | static struct thinkpad_id_data thinkpad_id; |
316 | ||
1da177e4 LT |
317 | #define __unused __attribute__ ((unused)) |
318 | ||
8fef502e HMH |
319 | static enum { |
320 | TPACPI_LIFE_INIT = 0, | |
321 | TPACPI_LIFE_RUNNING, | |
322 | TPACPI_LIFE_EXITING, | |
323 | } tpacpi_lifecycle; | |
324 | ||
b21a15f6 HMH |
325 | static int experimental; |
326 | static u32 dbg_level; | |
327 | ||
56b6aeb0 HMH |
328 | /**************************************************************************** |
329 | **************************************************************************** | |
330 | * | |
331 | * ACPI Helpers and device model | |
332 | * | |
333 | **************************************************************************** | |
334 | ****************************************************************************/ | |
335 | ||
336 | /************************************************************************* | |
337 | * ACPI basic handles | |
338 | */ | |
1da177e4 | 339 | |
94954cc6 | 340 | static acpi_handle root_handle; |
1da177e4 LT |
341 | |
342 | #define IBM_HANDLE(object, parent, paths...) \ | |
343 | static acpi_handle object##_handle; \ | |
344 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 345 | static char *object##_path; \ |
1da177e4 LT |
346 | static char *object##_paths[] = { paths } |
347 | ||
78f81cc4 BD |
348 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
349 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
350 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
351 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
352 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
353 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
354 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 355 | ); |
78f81cc4 | 356 | |
56b6aeb0 HMH |
357 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
358 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 359 | |
78f81cc4 BD |
360 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ |
361 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
362 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 363 | ); /* all others */ |
78f81cc4 BD |
364 | |
365 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
366 | "^HKEY", /* R30, R31 */ | |
367 | "HKEY", /* all others */ | |
56b6aeb0 | 368 | ); /* 570 */ |
78f81cc4 | 369 | |
78f81cc4 | 370 | |
56b6aeb0 HMH |
371 | /************************************************************************* |
372 | * ACPI helpers | |
a8b7a662 HMH |
373 | */ |
374 | ||
1da177e4 LT |
375 | static int acpi_evalf(acpi_handle handle, |
376 | void *res, char *method, char *fmt, ...) | |
377 | { | |
378 | char *fmt0 = fmt; | |
78f81cc4 BD |
379 | struct acpi_object_list params; |
380 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
381 | struct acpi_buffer result, *resultp; | |
382 | union acpi_object out_obj; | |
383 | acpi_status status; | |
384 | va_list ap; | |
385 | char res_type; | |
386 | int success; | |
387 | int quiet; | |
1da177e4 LT |
388 | |
389 | if (!*fmt) { | |
390 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
391 | return 0; | |
392 | } | |
393 | ||
394 | if (*fmt == 'q') { | |
395 | quiet = 1; | |
396 | fmt++; | |
397 | } else | |
398 | quiet = 0; | |
399 | ||
400 | res_type = *(fmt++); | |
401 | ||
402 | params.count = 0; | |
403 | params.pointer = &in_objs[0]; | |
404 | ||
405 | va_start(ap, fmt); | |
406 | while (*fmt) { | |
407 | char c = *(fmt++); | |
408 | switch (c) { | |
409 | case 'd': /* int */ | |
410 | in_objs[params.count].integer.value = va_arg(ap, int); | |
411 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
412 | break; | |
78f81cc4 | 413 | /* add more types as needed */ |
1da177e4 LT |
414 | default: |
415 | printk(IBM_ERR "acpi_evalf() called " | |
416 | "with invalid format character '%c'\n", c); | |
417 | return 0; | |
418 | } | |
419 | } | |
420 | va_end(ap); | |
421 | ||
78f81cc4 BD |
422 | if (res_type != 'v') { |
423 | result.length = sizeof(out_obj); | |
424 | result.pointer = &out_obj; | |
425 | resultp = &result; | |
426 | } else | |
427 | resultp = NULL; | |
1da177e4 | 428 | |
78f81cc4 | 429 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
430 | |
431 | switch (res_type) { | |
78f81cc4 | 432 | case 'd': /* int */ |
1da177e4 LT |
433 | if (res) |
434 | *(int *)res = out_obj.integer.value; | |
435 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
436 | break; | |
78f81cc4 | 437 | case 'v': /* void */ |
1da177e4 LT |
438 | success = status == AE_OK; |
439 | break; | |
78f81cc4 | 440 | /* add more types as needed */ |
1da177e4 LT |
441 | default: |
442 | printk(IBM_ERR "acpi_evalf() called " | |
443 | "with invalid format character '%c'\n", res_type); | |
444 | return 0; | |
445 | } | |
446 | ||
56b6aeb0 HMH |
447 | if (!success && !quiet) |
448 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
449 | method, fmt0, status); | |
450 | ||
451 | return success; | |
452 | } | |
453 | ||
454 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
455 | { | |
456 | int i; | |
457 | ||
458 | if (acpi_evalf(handle, &i, method, "d")) | |
459 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
460 | else | |
461 | printk(IBM_ERR "error calling %s\n", method); | |
462 | } | |
463 | ||
464 | static int acpi_ec_read(int i, u8 * p) | |
465 | { | |
466 | int v; | |
467 | ||
468 | if (ecrd_handle) { | |
469 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
470 | return 0; | |
471 | *p = v; | |
472 | } else { | |
473 | if (ec_read(i, p) < 0) | |
474 | return 0; | |
475 | } | |
476 | ||
477 | return 1; | |
478 | } | |
479 | ||
480 | static int acpi_ec_write(int i, u8 v) | |
481 | { | |
482 | if (ecwr_handle) { | |
483 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
484 | return 0; | |
485 | } else { | |
486 | if (ec_write(i, v) < 0) | |
487 | return 0; | |
488 | } | |
489 | ||
490 | return 1; | |
491 | } | |
492 | ||
493 | static int _sta(acpi_handle handle) | |
494 | { | |
495 | int status; | |
496 | ||
497 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
498 | status = 0; | |
499 | ||
500 | return status; | |
501 | } | |
502 | ||
c9bea99c HMH |
503 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
504 | { | |
505 | if (!cmos_handle) | |
506 | return -ENXIO; | |
507 | ||
508 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
509 | return -EIO; | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
56b6aeb0 HMH |
514 | /************************************************************************* |
515 | * ACPI device model | |
516 | */ | |
517 | ||
f74a27d4 HMH |
518 | #define IBM_ACPIHANDLE_INIT(object) \ |
519 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
520 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) | |
521 | ||
8d376cd6 | 522 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
523 | acpi_handle *handle, acpi_handle parent, |
524 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
525 | { |
526 | int i; | |
527 | acpi_status status; | |
528 | ||
5ae930e6 HMH |
529 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
530 | name); | |
531 | ||
56b6aeb0 HMH |
532 | for (i = 0; i < num_paths; i++) { |
533 | status = acpi_get_handle(parent, paths[i], handle); | |
534 | if (ACPI_SUCCESS(status)) { | |
535 | *path = paths[i]; | |
5ae930e6 HMH |
536 | dbg_printk(TPACPI_DBG_INIT, |
537 | "Found ACPI handle %s for %s\n", | |
538 | *path, name); | |
56b6aeb0 HMH |
539 | return; |
540 | } | |
541 | } | |
542 | ||
5ae930e6 HMH |
543 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
544 | name); | |
56b6aeb0 HMH |
545 | *handle = NULL; |
546 | } | |
547 | ||
8d376cd6 | 548 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
549 | { |
550 | struct ibm_struct *ibm = data; | |
551 | ||
8fef502e HMH |
552 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
553 | return; | |
554 | ||
8d376cd6 | 555 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
556 | return; |
557 | ||
8d376cd6 | 558 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
559 | } |
560 | ||
8d376cd6 | 561 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
562 | { |
563 | acpi_status status; | |
5ae930e6 | 564 | int rc; |
56b6aeb0 | 565 | |
8d376cd6 HMH |
566 | BUG_ON(!ibm->acpi); |
567 | ||
568 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
569 | return 0; |
570 | ||
5ae930e6 | 571 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
572 | "setting up ACPI notify for %s\n", ibm->name); |
573 | ||
5ae930e6 HMH |
574 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
575 | if (rc < 0) { | |
576 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
577 | ibm->name, rc); | |
56b6aeb0 HMH |
578 | return -ENODEV; |
579 | } | |
580 | ||
8d376cd6 HMH |
581 | acpi_driver_data(ibm->acpi->device) = ibm; |
582 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
583 | IBM_ACPI_EVENT_PREFIX, |
584 | ibm->name); | |
56b6aeb0 | 585 | |
8d376cd6 HMH |
586 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
587 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
588 | if (ACPI_FAILURE(status)) { |
589 | if (status == AE_ALREADY_EXISTS) { | |
590 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
591 | ibm->name); | |
592 | } else { | |
593 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
594 | ibm->name, status); | |
595 | } | |
596 | return -ENODEV; | |
597 | } | |
8d376cd6 | 598 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
599 | return 0; |
600 | } | |
601 | ||
8d376cd6 | 602 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
603 | { |
604 | return 0; | |
605 | } | |
606 | ||
6700121b | 607 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 608 | { |
5ae930e6 | 609 | int rc; |
56b6aeb0 | 610 | |
fe08bc4b HMH |
611 | dbg_printk(TPACPI_DBG_INIT, |
612 | "registering %s as an ACPI driver\n", ibm->name); | |
613 | ||
8d376cd6 HMH |
614 | BUG_ON(!ibm->acpi); |
615 | ||
616 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
617 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
618 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
619 | return -ENOMEM; | |
56b6aeb0 HMH |
620 | } |
621 | ||
8d376cd6 HMH |
622 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
623 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 624 | |
8d376cd6 | 625 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 626 | |
5ae930e6 HMH |
627 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
628 | if (rc < 0) { | |
56b6aeb0 | 629 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 630 | ibm->name, rc); |
8d376cd6 HMH |
631 | kfree(ibm->acpi->driver); |
632 | ibm->acpi->driver = NULL; | |
5ae930e6 | 633 | } else if (!rc) |
8d376cd6 | 634 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 635 | |
5ae930e6 | 636 | return rc; |
56b6aeb0 HMH |
637 | } |
638 | ||
639 | ||
640 | /**************************************************************************** | |
641 | **************************************************************************** | |
642 | * | |
643 | * Procfs Helpers | |
644 | * | |
645 | **************************************************************************** | |
646 | ****************************************************************************/ | |
647 | ||
8d376cd6 HMH |
648 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
649 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
650 | { |
651 | struct ibm_struct *ibm = data; | |
652 | int len; | |
653 | ||
654 | if (!ibm || !ibm->read) | |
655 | return -EINVAL; | |
656 | ||
657 | len = ibm->read(page); | |
658 | if (len < 0) | |
659 | return len; | |
660 | ||
661 | if (len <= off + count) | |
662 | *eof = 1; | |
663 | *start = page + off; | |
664 | len -= off; | |
665 | if (len > count) | |
666 | len = count; | |
667 | if (len < 0) | |
668 | len = 0; | |
669 | ||
670 | return len; | |
671 | } | |
672 | ||
8d376cd6 HMH |
673 | static int dispatch_procfs_write(struct file *file, |
674 | const char __user * userbuf, | |
675 | unsigned long count, void *data) | |
56b6aeb0 HMH |
676 | { |
677 | struct ibm_struct *ibm = data; | |
678 | char *kernbuf; | |
679 | int ret; | |
680 | ||
681 | if (!ibm || !ibm->write) | |
682 | return -EINVAL; | |
683 | ||
684 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
685 | if (!kernbuf) | |
686 | return -ENOMEM; | |
1da177e4 | 687 | |
56b6aeb0 HMH |
688 | if (copy_from_user(kernbuf, userbuf, count)) { |
689 | kfree(kernbuf); | |
690 | return -EFAULT; | |
691 | } | |
1da177e4 | 692 | |
56b6aeb0 HMH |
693 | kernbuf[count] = 0; |
694 | strcat(kernbuf, ","); | |
695 | ret = ibm->write(kernbuf); | |
696 | if (ret == 0) | |
697 | ret = count; | |
1da177e4 | 698 | |
56b6aeb0 HMH |
699 | kfree(kernbuf); |
700 | ||
701 | return ret; | |
1da177e4 LT |
702 | } |
703 | ||
704 | static char *next_cmd(char **cmds) | |
705 | { | |
706 | char *start = *cmds; | |
707 | char *end; | |
708 | ||
709 | while ((end = strchr(start, ',')) && end == start) | |
710 | start = end + 1; | |
711 | ||
712 | if (!end) | |
713 | return NULL; | |
714 | ||
715 | *end = 0; | |
716 | *cmds = end + 1; | |
717 | return start; | |
718 | } | |
719 | ||
56b6aeb0 | 720 | |
54ae1501 HMH |
721 | /**************************************************************************** |
722 | **************************************************************************** | |
723 | * | |
7f5d1cd6 | 724 | * Device model: input, hwmon and platform |
54ae1501 HMH |
725 | * |
726 | **************************************************************************** | |
727 | ****************************************************************************/ | |
728 | ||
94954cc6 | 729 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 730 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 731 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 732 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 733 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 734 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 HMH |
735 | |
736 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
737 | { | |
738 | struct ibm_struct *ibm, *itmp; | |
739 | ||
740 | list_for_each_entry_safe(ibm, itmp, | |
741 | &tpacpi_all_drivers, | |
742 | all_drivers) { | |
743 | if (ibm->resume) | |
744 | (ibm->resume)(); | |
745 | } | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
54ae1501 HMH |
750 | static struct platform_driver tpacpi_pdriver = { |
751 | .driver = { | |
752 | .name = IBM_DRVR_NAME, | |
753 | .owner = THIS_MODULE, | |
754 | }, | |
e295e850 | 755 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
756 | }; |
757 | ||
7fd40029 HMH |
758 | static struct platform_driver tpacpi_hwmon_pdriver = { |
759 | .driver = { | |
760 | .name = IBM_HWMON_DRVR_NAME, | |
761 | .owner = THIS_MODULE, | |
762 | }, | |
763 | }; | |
54ae1501 | 764 | |
176750d6 | 765 | /************************************************************************* |
b21a15f6 | 766 | * sysfs support helpers |
176750d6 HMH |
767 | */ |
768 | ||
b21a15f6 HMH |
769 | struct attribute_set { |
770 | unsigned int members, max_members; | |
771 | struct attribute_group group; | |
176750d6 HMH |
772 | }; |
773 | ||
7252374a HMH |
774 | struct attribute_set_obj { |
775 | struct attribute_set s; | |
776 | struct attribute *a; | |
777 | } __attribute__((packed)); | |
778 | ||
779 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
780 | const char* name) | |
781 | { | |
782 | struct attribute_set_obj *sobj; | |
783 | ||
784 | if (max_members == 0) | |
785 | return NULL; | |
786 | ||
787 | /* Allocates space for implicit NULL at the end too */ | |
788 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
789 | max_members * sizeof(struct attribute *), | |
790 | GFP_KERNEL); | |
791 | if (!sobj) | |
792 | return NULL; | |
793 | sobj->s.max_members = max_members; | |
794 | sobj->s.group.attrs = &sobj->a; | |
795 | sobj->s.group.name = name; | |
796 | ||
797 | return &sobj->s; | |
798 | } | |
799 | ||
f74a27d4 HMH |
800 | #define destroy_attr_set(_set) \ |
801 | kfree(_set); | |
802 | ||
7252374a HMH |
803 | /* not multi-threaded safe, use it in a single thread per set */ |
804 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
805 | { | |
806 | if (!s || !attr) | |
807 | return -EINVAL; | |
808 | ||
809 | if (s->members >= s->max_members) | |
810 | return -ENOMEM; | |
811 | ||
812 | s->group.attrs[s->members] = attr; | |
813 | s->members++; | |
814 | ||
815 | return 0; | |
816 | } | |
817 | ||
818 | static int add_many_to_attr_set(struct attribute_set* s, | |
819 | struct attribute **attr, | |
820 | unsigned int count) | |
821 | { | |
822 | int i, res; | |
823 | ||
824 | for (i = 0; i < count; i++) { | |
825 | res = add_to_attr_set(s, attr[i]); | |
826 | if (res) | |
827 | return res; | |
828 | } | |
829 | ||
830 | return 0; | |
831 | } | |
832 | ||
833 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
834 | { | |
835 | sysfs_remove_group(kobj, &s->group); | |
836 | destroy_attr_set(s); | |
837 | } | |
838 | ||
f74a27d4 HMH |
839 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
840 | sysfs_create_group(_kobj, &_attr_set->group) | |
841 | ||
7252374a HMH |
842 | static int parse_strtoul(const char *buf, |
843 | unsigned long max, unsigned long *value) | |
844 | { | |
845 | char *endp; | |
846 | ||
32afbf07 HMH |
847 | while (*buf && isspace(*buf)) |
848 | buf++; | |
7252374a HMH |
849 | *value = simple_strtoul(buf, &endp, 0); |
850 | while (*endp && isspace(*endp)) | |
851 | endp++; | |
852 | if (*endp || *value > max) | |
853 | return -EINVAL; | |
854 | ||
855 | return 0; | |
856 | } | |
857 | ||
56b6aeb0 | 858 | /************************************************************************* |
b21a15f6 | 859 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
860 | */ |
861 | ||
b21a15f6 HMH |
862 | /* interface_version --------------------------------------------------- */ |
863 | static ssize_t tpacpi_driver_interface_version_show( | |
864 | struct device_driver *drv, | |
865 | char *buf) | |
1da177e4 | 866 | { |
b21a15f6 HMH |
867 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
868 | } | |
869 | ||
870 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
871 | tpacpi_driver_interface_version_show, NULL); | |
872 | ||
873 | /* debug_level --------------------------------------------------------- */ | |
874 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
875 | char *buf) | |
876 | { | |
877 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
878 | } | |
879 | ||
880 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
881 | const char *buf, size_t count) | |
882 | { | |
883 | unsigned long t; | |
884 | ||
885 | if (parse_strtoul(buf, 0xffff, &t)) | |
886 | return -EINVAL; | |
887 | ||
888 | dbg_level = t; | |
889 | ||
890 | return count; | |
891 | } | |
892 | ||
893 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
894 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
895 | ||
896 | /* version ------------------------------------------------------------- */ | |
897 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
898 | char *buf) | |
899 | { | |
900 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
901 | } | |
902 | ||
903 | static DRIVER_ATTR(version, S_IRUGO, | |
904 | tpacpi_driver_version_show, NULL); | |
905 | ||
906 | /* --------------------------------------------------------------------- */ | |
907 | ||
908 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
909 | &driver_attr_debug_level, &driver_attr_version, | |
910 | &driver_attr_interface_version, | |
911 | }; | |
912 | ||
913 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
914 | { | |
915 | int i, res; | |
916 | ||
917 | i = 0; | |
918 | res = 0; | |
919 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
920 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
921 | i++; | |
922 | } | |
923 | ||
924 | return res; | |
925 | } | |
926 | ||
927 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
928 | { | |
929 | int i; | |
930 | ||
931 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
932 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
933 | } | |
934 | ||
935 | /**************************************************************************** | |
936 | **************************************************************************** | |
937 | * | |
938 | * Subdrivers | |
939 | * | |
940 | **************************************************************************** | |
941 | ****************************************************************************/ | |
942 | ||
943 | /************************************************************************* | |
944 | * thinkpad-acpi init subdriver | |
945 | */ | |
946 | ||
947 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
948 | { | |
949 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
950 | printk(IBM_INFO "%s\n", IBM_URL); | |
951 | ||
952 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", | |
953 | (thinkpad_id.bios_version_str) ? | |
954 | thinkpad_id.bios_version_str : "unknown", | |
955 | (thinkpad_id.ec_version_str) ? | |
956 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
957 | |
958 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
959 | printk(IBM_INFO "%s %s\n", | |
960 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
961 | "IBM" : ((thinkpad_id.vendor == | |
962 | PCI_VENDOR_ID_LENOVO) ? | |
963 | "Lenovo" : "Unknown vendor"), | |
964 | thinkpad_id.model_str); | |
3945ac36 | 965 | |
1da177e4 LT |
966 | return 0; |
967 | } | |
968 | ||
643f12db | 969 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
970 | { |
971 | int len = 0; | |
972 | ||
973 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
974 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
975 | ||
976 | return len; | |
977 | } | |
978 | ||
a5763f22 HMH |
979 | static struct ibm_struct thinkpad_acpi_driver_data = { |
980 | .name = "driver", | |
981 | .read = thinkpad_acpi_driver_read, | |
982 | }; | |
983 | ||
56b6aeb0 HMH |
984 | /************************************************************************* |
985 | * Hotkey subdriver | |
986 | */ | |
987 | ||
f74a27d4 HMH |
988 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
989 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
990 | TP_ACPI_HOTKEYSCAN_FNF2, | |
991 | TP_ACPI_HOTKEYSCAN_FNF3, | |
992 | TP_ACPI_HOTKEYSCAN_FNF4, | |
993 | TP_ACPI_HOTKEYSCAN_FNF5, | |
994 | TP_ACPI_HOTKEYSCAN_FNF6, | |
995 | TP_ACPI_HOTKEYSCAN_FNF7, | |
996 | TP_ACPI_HOTKEYSCAN_FNF8, | |
997 | TP_ACPI_HOTKEYSCAN_FNF9, | |
998 | TP_ACPI_HOTKEYSCAN_FNF10, | |
999 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1000 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1001 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1002 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1003 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1004 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1005 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1006 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1007 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1008 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1009 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1010 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1011 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1012 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1013 | }; | |
1014 | ||
01e88f25 HMH |
1015 | enum { /* Keys available through NVRAM polling */ |
1016 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1017 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1018 | }; | |
1019 | ||
1020 | enum { /* Positions of some of the keys in hotkey masks */ | |
1021 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1022 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1023 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1024 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1025 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1026 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1027 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1028 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1029 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1030 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1031 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1032 | }; | |
1033 | ||
1034 | enum { /* NVRAM to ACPI HKEY group map */ | |
1035 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1036 | TP_ACPI_HKEY_ZOOM_MASK | | |
1037 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1038 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1039 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1040 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1041 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1042 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1043 | TP_ACPI_HKEY_MUTE_MASK, | |
1044 | }; | |
1045 | ||
1046 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1047 | struct tp_nvram_state { | |
1048 | u16 thinkpad_toggle:1; | |
1049 | u16 zoom_toggle:1; | |
1050 | u16 display_toggle:1; | |
1051 | u16 thinklight_toggle:1; | |
1052 | u16 hibernate_toggle:1; | |
1053 | u16 displayexp_toggle:1; | |
1054 | u16 display_state:1; | |
1055 | u16 brightness_toggle:1; | |
1056 | u16 volume_toggle:1; | |
1057 | u16 mute:1; | |
1058 | ||
1059 | u8 brightness_level; | |
1060 | u8 volume_level; | |
1061 | }; | |
1062 | ||
1063 | static struct task_struct *tpacpi_hotkey_task; | |
1064 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1065 | static int hotkey_poll_freq = 10; /* Hz */ | |
1066 | static struct mutex hotkey_thread_mutex; | |
1067 | static struct mutex hotkey_thread_data_mutex; | |
1068 | static unsigned int hotkey_config_change; | |
1069 | ||
1070 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1071 | ||
1072 | #define hotkey_source_mask 0U | |
1073 | ||
1074 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1075 | ||
f74a27d4 HMH |
1076 | static struct mutex hotkey_mutex; |
1077 | ||
78f81cc4 | 1078 | static int hotkey_orig_status; |
ae92bd17 | 1079 | static u32 hotkey_orig_mask; |
9b010de5 | 1080 | static u32 hotkey_all_mask; |
6a38abbf | 1081 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1082 | static u32 hotkey_mask; |
6a38abbf | 1083 | |
b21a15f6 HMH |
1084 | static unsigned int hotkey_report_mode; |
1085 | ||
edf0e0e5 | 1086 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1087 | |
94954cc6 | 1088 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1089 | |
01e88f25 HMH |
1090 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1091 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
1092 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1093 | hotkey_config_change++; | |
1094 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
1095 | mutex_unlock(&hotkey_thread_data_mutex); | |
1096 | #else | |
1097 | #define HOTKEY_CONFIG_CRITICAL_START | |
1098 | #define HOTKEY_CONFIG_CRITICAL_END | |
1099 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1100 | ||
74941a69 HMH |
1101 | static int hotkey_get_wlsw(int *status) |
1102 | { | |
1103 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1104 | return -EIO; | |
1105 | return 0; | |
1106 | } | |
1107 | ||
b2c985e7 HMH |
1108 | /* |
1109 | * Call with hotkey_mutex held | |
1110 | */ | |
1111 | static int hotkey_mask_get(void) | |
1112 | { | |
01e88f25 HMH |
1113 | u32 m = 0; |
1114 | ||
b2c985e7 | 1115 | if (tp_features.hotkey_mask) { |
01e88f25 | 1116 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1117 | return -EIO; |
1118 | } | |
01e88f25 | 1119 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1120 | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | /* | |
1125 | * Call with hotkey_mutex held | |
1126 | */ | |
1127 | static int hotkey_mask_set(u32 mask) | |
1128 | { | |
1129 | int i; | |
1130 | int rc = 0; | |
1131 | ||
1132 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1133 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1134 | for (i = 0; i < 32; i++) { |
1135 | u32 m = 1 << i; | |
01e88f25 HMH |
1136 | /* enable in firmware mask only keys not in NVRAM |
1137 | * mode, but enable the key in the cached hotkey_mask | |
1138 | * regardless of mode, or the key will end up | |
1139 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1140 | if (!acpi_evalf(hkey_handle, |
1141 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1142 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1143 | rc = -EIO; |
1144 | break; | |
1145 | } else { | |
1146 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1147 | } | |
1148 | } | |
01e88f25 | 1149 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1150 | |
1151 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1152 | if (!hotkey_mask_get() && !rc && |
1153 | (hotkey_mask & ~hotkey_source_mask) != | |
1154 | (mask & ~hotkey_source_mask)) { | |
b2c985e7 HMH |
1155 | printk(IBM_NOTICE |
1156 | "requested hot key mask 0x%08x, but " | |
1157 | "firmware forced it to 0x%08x\n", | |
1158 | mask, hotkey_mask); | |
1159 | } | |
01e88f25 HMH |
1160 | } else { |
1161 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1162 | HOTKEY_CONFIG_CRITICAL_START | |
1163 | hotkey_mask = mask & hotkey_source_mask; | |
1164 | HOTKEY_CONFIG_CRITICAL_END | |
1165 | hotkey_mask_get(); | |
1166 | if (hotkey_mask != mask) { | |
1167 | printk(IBM_NOTICE | |
1168 | "requested hot key mask 0x%08x, " | |
1169 | "forced to 0x%08x (NVRAM poll mask is " | |
1170 | "0x%08x): no firmware mask support\n", | |
1171 | mask, hotkey_mask, hotkey_source_mask); | |
1172 | } | |
1173 | #else | |
1174 | hotkey_mask_get(); | |
1175 | rc = -ENXIO; | |
1176 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1177 | } |
1178 | ||
1179 | return rc; | |
1180 | } | |
1181 | ||
1182 | static int hotkey_status_get(int *status) | |
1183 | { | |
1184 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1185 | return -EIO; | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static int hotkey_status_set(int status) | |
1191 | { | |
1192 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1193 | return -EIO; | |
1194 | ||
1195 | return 0; | |
1196 | } | |
1197 | ||
b7c8c200 HMH |
1198 | static void tpacpi_input_send_radiosw(void) |
1199 | { | |
1200 | int wlsw; | |
1201 | ||
1202 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1203 | ||
1204 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { | |
1205 | input_report_switch(tpacpi_inputdev, | |
1206 | SW_RADIO, !!wlsw); | |
1207 | input_sync(tpacpi_inputdev); | |
1208 | } | |
1209 | ||
1210 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1211 | } | |
1212 | ||
1213 | static void tpacpi_input_send_key(unsigned int scancode) | |
1214 | { | |
1215 | unsigned int keycode; | |
1216 | ||
1217 | keycode = hotkey_keycode_map[scancode]; | |
1218 | ||
1219 | if (keycode != KEY_RESERVED) { | |
1220 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1221 | ||
1222 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1223 | if (keycode == KEY_UNKNOWN) | |
1224 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1225 | scancode); | |
1226 | input_sync(tpacpi_inputdev); | |
1227 | ||
1228 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1229 | if (keycode == KEY_UNKNOWN) | |
1230 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1231 | scancode); | |
1232 | input_sync(tpacpi_inputdev); | |
1233 | ||
1234 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1235 | } | |
1236 | } | |
1237 | ||
01e88f25 HMH |
1238 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1239 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1240 | ||
1241 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1242 | { | |
1243 | tpacpi_input_send_key(scancode); | |
1244 | if (hotkey_report_mode < 2) { | |
1245 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1246 | 0x80, 0x1001 + scancode); | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1251 | { | |
1252 | u8 d; | |
1253 | ||
1254 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1255 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1256 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1257 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1258 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1259 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1260 | } | |
1261 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1262 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1263 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1264 | } | |
1265 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1266 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1267 | n->displayexp_toggle = | |
1268 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1269 | } | |
1270 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1271 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1272 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1273 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1274 | n->brightness_toggle = | |
1275 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1276 | } | |
1277 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1278 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1279 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1280 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1281 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1282 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
1287 | do { if ((mask & (1 << __scancode)) && oldn->__member != newn->__member) \ | |
1288 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1289 | ||
1290 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1291 | do { if (mask & (1 << __scancode)) \ | |
1292 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1293 | ||
1294 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
1295 | struct tp_nvram_state *newn, | |
1296 | u32 mask) | |
1297 | { | |
1298 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1299 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1300 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1301 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1302 | ||
1303 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1304 | ||
1305 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1306 | ||
1307 | /* handle volume */ | |
1308 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1309 | if (oldn->mute != newn->mute) { | |
1310 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1311 | } | |
1312 | if (oldn->volume_level > newn->volume_level) { | |
1313 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1314 | } else if (oldn->volume_level < newn->volume_level) { | |
1315 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1316 | } else if (oldn->mute == newn->mute) { | |
1317 | /* repeated key presses that didn't change state */ | |
1318 | if (newn->mute) { | |
1319 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1320 | } else if (newn->volume_level != 0) { | |
1321 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1322 | } else { | |
1323 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1324 | } | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | /* handle brightness */ | |
1329 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1330 | if (oldn->brightness_level < newn->brightness_level) { | |
1331 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1332 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1333 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1334 | } else { | |
1335 | /* repeated key presses that didn't change state */ | |
1336 | if (newn->brightness_level != 0) { | |
1337 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1338 | } else { | |
1339 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1340 | } | |
1341 | } | |
1342 | } | |
1343 | } | |
1344 | ||
1345 | #undef TPACPI_COMPARE_KEY | |
1346 | #undef TPACPI_MAY_SEND_KEY | |
1347 | ||
1348 | static int hotkey_kthread(void *data) | |
1349 | { | |
1350 | struct tp_nvram_state s[2]; | |
1351 | u32 mask; | |
1352 | unsigned int si, so; | |
1353 | unsigned long t; | |
1354 | unsigned int change_detector, must_reset; | |
1355 | ||
1356 | mutex_lock(&hotkey_thread_mutex); | |
1357 | ||
1358 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1359 | goto exit; | |
1360 | ||
1361 | set_freezable(); | |
1362 | ||
1363 | so = 0; | |
1364 | si = 1; | |
1365 | t = 0; | |
1366 | ||
1367 | /* Initial state for compares */ | |
1368 | mutex_lock(&hotkey_thread_data_mutex); | |
1369 | change_detector = hotkey_config_change; | |
1370 | mask = hotkey_source_mask & hotkey_mask; | |
1371 | mutex_unlock(&hotkey_thread_data_mutex); | |
1372 | hotkey_read_nvram(&s[so], mask); | |
1373 | ||
1374 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1375 | if (t == 0) | |
1376 | t = 1000/hotkey_poll_freq; | |
1377 | t = msleep_interruptible(t); | |
1378 | if (unlikely(kthread_should_stop())) | |
1379 | break; | |
1380 | must_reset = try_to_freeze(); | |
1381 | if (t > 0 && !must_reset) | |
1382 | continue; | |
1383 | ||
1384 | mutex_lock(&hotkey_thread_data_mutex); | |
1385 | if (must_reset || hotkey_config_change != change_detector) { | |
1386 | /* forget old state on thaw or config change */ | |
1387 | si = so; | |
1388 | t = 0; | |
1389 | change_detector = hotkey_config_change; | |
1390 | } | |
1391 | mask = hotkey_source_mask & hotkey_mask; | |
1392 | mutex_unlock(&hotkey_thread_data_mutex); | |
1393 | ||
1394 | if (likely(mask)) { | |
1395 | hotkey_read_nvram(&s[si], mask); | |
1396 | if (likely(si != so)) { | |
1397 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
1398 | mask); | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | so = si; | |
1403 | si ^= 1; | |
1404 | } | |
1405 | ||
1406 | exit: | |
1407 | mutex_unlock(&hotkey_thread_mutex); | |
1408 | return 0; | |
1409 | } | |
1410 | ||
1411 | static void hotkey_poll_stop_sync(void) | |
1412 | { | |
1413 | if (tpacpi_hotkey_task) { | |
1414 | if (frozen(tpacpi_hotkey_task) || | |
1415 | freezing(tpacpi_hotkey_task)) | |
1416 | thaw_process(tpacpi_hotkey_task); | |
1417 | ||
1418 | kthread_stop(tpacpi_hotkey_task); | |
1419 | tpacpi_hotkey_task = NULL; | |
1420 | mutex_lock(&hotkey_thread_mutex); | |
1421 | /* at this point, the thread did exit */ | |
1422 | mutex_unlock(&hotkey_thread_mutex); | |
1423 | } | |
1424 | } | |
1425 | ||
1426 | /* call with hotkey_mutex held */ | |
1427 | static void hotkey_poll_setup(int may_warn) | |
1428 | { | |
1429 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1430 | hotkey_poll_freq > 0 && | |
1431 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1432 | if (!tpacpi_hotkey_task) { | |
1433 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
1434 | NULL, IBM_FILE "d"); | |
1435 | if (IS_ERR(tpacpi_hotkey_task)) { | |
1436 | tpacpi_hotkey_task = NULL; | |
1437 | printk(IBM_ERR "could not create kernel thread " | |
1438 | "for hotkey polling\n"); | |
1439 | } | |
1440 | } | |
1441 | } else { | |
1442 | hotkey_poll_stop_sync(); | |
1443 | if (may_warn && | |
1444 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
1445 | printk(IBM_NOTICE "hot keys 0x%08x require polling, " | |
1446 | "which is currently disabled\n", | |
1447 | hotkey_source_mask); | |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | ||
1452 | static void hotkey_poll_setup_safe(int may_warn) | |
1453 | { | |
1454 | mutex_lock(&hotkey_mutex); | |
1455 | hotkey_poll_setup(may_warn); | |
1456 | mutex_unlock(&hotkey_mutex); | |
1457 | } | |
1458 | ||
1459 | static int hotkey_inputdev_open(struct input_dev *dev) | |
1460 | { | |
1461 | switch (tpacpi_lifecycle) { | |
1462 | case TPACPI_LIFE_INIT: | |
1463 | /* | |
1464 | * hotkey_init will call hotkey_poll_setup_safe | |
1465 | * at the appropriate moment | |
1466 | */ | |
1467 | return 0; | |
1468 | case TPACPI_LIFE_EXITING: | |
1469 | return -EBUSY; | |
1470 | case TPACPI_LIFE_RUNNING: | |
1471 | hotkey_poll_setup_safe(0); | |
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1476 | BUG(); | |
1477 | return -EBUSY; | |
1478 | } | |
1479 | ||
1480 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1481 | { | |
1482 | /* disable hotkey polling when possible */ | |
1483 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1484 | hotkey_poll_setup_safe(0); | |
1485 | } | |
1486 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1487 | ||
a0416420 HMH |
1488 | /* sysfs hotkey enable ------------------------------------------------- */ |
1489 | static ssize_t hotkey_enable_show(struct device *dev, | |
1490 | struct device_attribute *attr, | |
1491 | char *buf) | |
1492 | { | |
ae92bd17 | 1493 | int res, status; |
a0416420 | 1494 | |
b2c985e7 | 1495 | res = hotkey_status_get(&status); |
a0416420 HMH |
1496 | if (res) |
1497 | return res; | |
1498 | ||
1499 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1500 | } | |
1501 | ||
1502 | static ssize_t hotkey_enable_store(struct device *dev, | |
1503 | struct device_attribute *attr, | |
1504 | const char *buf, size_t count) | |
1505 | { | |
1506 | unsigned long t; | |
b2c985e7 | 1507 | int res; |
a0416420 HMH |
1508 | |
1509 | if (parse_strtoul(buf, 1, &t)) | |
1510 | return -EINVAL; | |
1511 | ||
b2c985e7 | 1512 | res = hotkey_status_set(t); |
a0416420 HMH |
1513 | |
1514 | return (res) ? res : count; | |
1515 | } | |
1516 | ||
1517 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1518 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1519 | hotkey_enable_show, hotkey_enable_store); |
1520 | ||
1521 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1522 | static ssize_t hotkey_mask_show(struct device *dev, | |
1523 | struct device_attribute *attr, | |
1524 | char *buf) | |
1525 | { | |
b2c985e7 | 1526 | int res; |
a0416420 | 1527 | |
b2c985e7 HMH |
1528 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1529 | return -ERESTARTSYS; | |
1530 | res = hotkey_mask_get(); | |
1531 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1532 | |
b2c985e7 HMH |
1533 | return (res)? |
1534 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1535 | } |
1536 | ||
1537 | static ssize_t hotkey_mask_store(struct device *dev, | |
1538 | struct device_attribute *attr, | |
1539 | const char *buf, size_t count) | |
1540 | { | |
1541 | unsigned long t; | |
b2c985e7 | 1542 | int res; |
a0416420 | 1543 | |
ae92bd17 | 1544 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1545 | return -EINVAL; |
1546 | ||
b2c985e7 HMH |
1547 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1548 | return -ERESTARTSYS; | |
1549 | ||
1550 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1551 | |
1552 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1553 | hotkey_poll_setup(1); | |
1554 | #endif | |
1555 | ||
b2c985e7 | 1556 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1557 | |
1558 | return (res) ? res : count; | |
1559 | } | |
1560 | ||
1561 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1562 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1563 | hotkey_mask_show, hotkey_mask_store); |
1564 | ||
1565 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1566 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1567 | struct device_attribute *attr, | |
1568 | char *buf) | |
1569 | { | |
1570 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1571 | } | |
1572 | ||
1573 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1574 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1575 | |
1576 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1577 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1578 | struct device_attribute *attr, | |
1579 | char *buf) | |
1580 | { | |
ae92bd17 | 1581 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1582 | } |
1583 | ||
1584 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1585 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1586 | |
9b010de5 HMH |
1587 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1588 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1589 | struct device_attribute *attr, | |
1590 | char *buf) | |
1591 | { | |
01e88f25 HMH |
1592 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1593 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1594 | } |
1595 | ||
1596 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1597 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1598 | ||
1599 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1600 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1601 | struct device_attribute *attr, | |
1602 | char *buf) | |
1603 | { | |
1604 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1605 | (hotkey_all_mask | hotkey_source_mask) |
1606 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1607 | } |
1608 | ||
1609 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1610 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1611 | hotkey_recommended_mask_show, NULL); | |
1612 | ||
01e88f25 HMH |
1613 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1614 | ||
1615 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1616 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1617 | struct device_attribute *attr, | |
1618 | char *buf) | |
1619 | { | |
1620 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1621 | } | |
1622 | ||
1623 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1624 | struct device_attribute *attr, | |
1625 | const char *buf, size_t count) | |
1626 | { | |
1627 | unsigned long t; | |
1628 | ||
1629 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1630 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1631 | return -EINVAL; | |
1632 | ||
1633 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1634 | return -ERESTARTSYS; | |
1635 | ||
1636 | HOTKEY_CONFIG_CRITICAL_START | |
1637 | hotkey_source_mask = t; | |
1638 | HOTKEY_CONFIG_CRITICAL_END | |
1639 | ||
1640 | hotkey_poll_setup(1); | |
1641 | ||
1642 | mutex_unlock(&hotkey_mutex); | |
1643 | ||
1644 | return count; | |
1645 | } | |
1646 | ||
1647 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1648 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1649 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1650 | ||
1651 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1652 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1653 | struct device_attribute *attr, | |
1654 | char *buf) | |
1655 | { | |
1656 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1657 | } | |
1658 | ||
1659 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1660 | struct device_attribute *attr, | |
1661 | const char *buf, size_t count) | |
1662 | { | |
1663 | unsigned long t; | |
1664 | ||
1665 | if (parse_strtoul(buf, 25, &t)) | |
1666 | return -EINVAL; | |
1667 | ||
1668 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1669 | return -ERESTARTSYS; | |
1670 | ||
1671 | hotkey_poll_freq = t; | |
1672 | ||
1673 | hotkey_poll_setup(1); | |
1674 | mutex_unlock(&hotkey_mutex); | |
1675 | ||
1676 | return count; | |
1677 | } | |
1678 | ||
1679 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1680 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1681 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1682 | ||
1683 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1684 | ||
74941a69 HMH |
1685 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
1686 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
1687 | struct device_attribute *attr, | |
1688 | char *buf) | |
1689 | { | |
1690 | int res, s; | |
1691 | res = hotkey_get_wlsw(&s); | |
1692 | if (res < 0) | |
1693 | return res; | |
1694 | ||
1695 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1696 | } | |
1697 | ||
1698 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1699 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1700 | ||
ff80f137 HMH |
1701 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1702 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1703 | struct device_attribute *attr, | |
1704 | char *buf) | |
1705 | { | |
1706 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1707 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1708 | } | |
1709 | ||
1710 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1711 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1712 | ||
a0416420 HMH |
1713 | /* --------------------------------------------------------------------- */ |
1714 | ||
ff80f137 HMH |
1715 | static struct attribute *hotkey_attributes[] __initdata = { |
1716 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1717 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1718 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1719 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1720 | &dev_attr_hotkey_mask.attr, | |
1721 | &dev_attr_hotkey_all_mask.attr, | |
1722 | &dev_attr_hotkey_recommended_mask.attr, | |
1723 | &dev_attr_hotkey_source_mask.attr, | |
1724 | &dev_attr_hotkey_poll_freq.attr, | |
1725 | #endif | |
ff80f137 HMH |
1726 | }; |
1727 | ||
1728 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1729 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1730 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1731 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1732 | &dev_attr_hotkey_all_mask.attr, |
1733 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1734 | #endif |
a0416420 HMH |
1735 | }; |
1736 | ||
a5763f22 | 1737 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1738 | { |
0f089147 HMH |
1739 | /* Requirements for changing the default keymaps: |
1740 | * | |
1741 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1742 | * good reasons. Do not change them unless you have deep | |
1743 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1744 | * the various ThinkPad models. The driver behaves | |
1745 | * differently for KEY_RESERVED: such keys have their | |
1746 | * hot key mask *unset* in mask_recommended, and also | |
1747 | * in the initial hot key mask programmed into the | |
1748 | * firmware at driver load time, which means the firm- | |
1749 | * ware may react very differently if you change them to | |
1750 | * something else; | |
1751 | * | |
1752 | * 2. You must be subscribed to the linux-thinkpad and | |
1753 | * ibm-acpi-devel mailing lists, and you should read the | |
1754 | * list archives since 2007 if you want to change the | |
1755 | * keymaps. This requirement exists so that you will | |
1756 | * know the past history of problems with the thinkpad- | |
1757 | * acpi driver keymaps, and also that you will be | |
1758 | * listening to any bug reports; | |
1759 | * | |
1760 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1761 | * for merging, *ever*. Send them to the linux-acpi | |
1762 | * mailinglist for comments. Merging is to be done only | |
1763 | * through acpi-test and the ACPI maintainer. | |
1764 | * | |
1765 | * If the above is too much to ask, don't change the keymap. | |
1766 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1767 | */ | |
edf0e0e5 HMH |
1768 | static u16 ibm_keycode_map[] __initdata = { |
1769 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1770 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1771 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1772 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1773 | |
1774 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1775 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1776 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1777 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1778 | |
1779 | /* brightness: firmware always reacts to them, unless | |
1780 | * X.org did some tricks in the radeon BIOS scratch | |
1781 | * registers of *some* models */ | |
e927c08d | 1782 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1783 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1784 | |
1785 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1786 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1787 | |
edf0e0e5 HMH |
1788 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1789 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1790 | |
1791 | /* Volume: firmware always react to it and reprograms | |
1792 | * the built-in *extra* mixer. Never map it to control | |
1793 | * another mixer by default. */ | |
e927c08d HMH |
1794 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1795 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1796 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1797 | |
edf0e0e5 | 1798 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1799 | |
edf0e0e5 HMH |
1800 | /* (assignments unknown, please report if found) */ |
1801 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1802 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1803 | }; | |
1804 | static u16 lenovo_keycode_map[] __initdata = { | |
1805 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1806 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1807 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1808 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1809 | |
1810 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1811 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1812 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1813 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1814 | |
56a185b4 | 1815 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1816 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1817 | |
edf0e0e5 | 1818 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1819 | |
edf0e0e5 HMH |
1820 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1821 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1822 | |
1823 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1824 | * react to it and reprograms the built-in *extra* mixer. | |
1825 | * Never map it to control another mixer by default. | |
1826 | * | |
1827 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1828 | * these over the regular keyboard, so these are no-ops, | |
1829 | * but there are still weird bugs re. MUTE, so do not | |
1830 | * change unless you get test reports from all Lenovo | |
1831 | * models. May cause the BIOS to interfere with the | |
1832 | * HDA mixer. | |
1833 | */ | |
e927c08d HMH |
1834 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1835 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1836 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1837 | |
edf0e0e5 | 1838 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1839 | |
edf0e0e5 HMH |
1840 | /* (assignments unknown, please report if found) */ |
1841 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1842 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1843 | }; | |
1844 | ||
1845 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1846 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1847 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1848 | ||
6a38abbf | 1849 | int res, i; |
74941a69 | 1850 | int status; |
1b6521dc | 1851 | int hkeyv; |
b86c4722 | 1852 | |
fe08bc4b HMH |
1853 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1854 | ||
6a38abbf | 1855 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
1856 | BUG_ON(tpacpi_inputdev->open != NULL || |
1857 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 1858 | |
8d376cd6 | 1859 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1860 | mutex_init(&hotkey_mutex); |
5fba344c | 1861 | |
01e88f25 HMH |
1862 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1863 | mutex_init(&hotkey_thread_mutex); | |
1864 | mutex_init(&hotkey_thread_data_mutex); | |
1865 | #endif | |
1866 | ||
56b6aeb0 | 1867 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1868 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1869 | |
fe08bc4b | 1870 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1871 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1872 | |
d8fd94d9 | 1873 | if (tp_features.hotkey) { |
01e88f25 | 1874 | hotkey_dev_attributes = create_attr_set(10, NULL); |
a0416420 HMH |
1875 | if (!hotkey_dev_attributes) |
1876 | return -ENOMEM; | |
ff80f137 HMH |
1877 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1878 | hotkey_attributes, | |
1879 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1880 | if (res) |
1881 | return res; | |
1882 | ||
56b6aeb0 | 1883 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1884 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1885 | for HKEY interface version 0x100 */ | |
1886 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1887 | if ((hkeyv >> 8) != 1) { | |
1888 | printk(IBM_ERR "unknown version of the " | |
1889 | "HKEY interface: 0x%x\n", hkeyv); | |
1890 | printk(IBM_ERR "please report this to %s\n", | |
1891 | IBM_MAIL); | |
1892 | } else { | |
1893 | /* | |
1894 | * MHKV 0x100 in A31, R40, R40e, | |
1895 | * T4x, X31, and later | |
01e88f25 | 1896 | */ |
1b6521dc HMH |
1897 | tp_features.hotkey_mask = 1; |
1898 | } | |
1899 | } | |
56b6aeb0 | 1900 | |
fe08bc4b | 1901 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1902 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1903 | |
9b010de5 | 1904 | if (tp_features.hotkey_mask) { |
9b010de5 | 1905 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc HMH |
1906 | "MHKA", "qd")) { |
1907 | printk(IBM_ERR | |
1908 | "missing MHKA handler, " | |
1909 | "please report this to %s\n", | |
1910 | IBM_MAIL); | |
9b010de5 | 1911 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 1912 | } |
9b010de5 HMH |
1913 | } |
1914 | ||
01e88f25 HMH |
1915 | /* hotkey_source_mask *must* be zero for |
1916 | * the first hotkey_mask_get */ | |
b2c985e7 | 1917 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1918 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1919 | res = hotkey_mask_get(); |
1920 | hotkey_orig_mask = hotkey_mask; | |
1921 | if (!res) { | |
1922 | res = add_many_to_attr_set( | |
1923 | hotkey_dev_attributes, | |
1924 | hotkey_mask_attributes, | |
1925 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1926 | } | |
a0416420 | 1927 | } |
74941a69 | 1928 | |
01e88f25 HMH |
1929 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1930 | if (tp_features.hotkey_mask) { | |
1931 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
1932 | & ~hotkey_all_mask; | |
1933 | } else { | |
1934 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
1935 | } | |
1936 | ||
1937 | vdbg_printk(TPACPI_DBG_INIT, | |
1938 | "hotkey source mask 0x%08x, polling freq %d\n", | |
1939 | hotkey_source_mask, hotkey_poll_freq); | |
1940 | #endif | |
1941 | ||
74941a69 HMH |
1942 | /* Not all thinkpads have a hardware radio switch */ |
1943 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1944 | tp_features.hotkey_wlsw = 1; | |
1945 | printk(IBM_INFO | |
1946 | "radio switch found; radios are %s\n", | |
1947 | enabled(status, 0)); | |
1948 | res = add_to_attr_set(hotkey_dev_attributes, | |
1949 | &dev_attr_hotkey_radio_sw.attr); | |
1950 | } | |
1951 | ||
a0416420 HMH |
1952 | if (!res) |
1953 | res = register_attr_set_with_sysfs( | |
1954 | hotkey_dev_attributes, | |
1955 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1956 | if (res) |
1957 | return res; | |
6a38abbf | 1958 | |
edf0e0e5 HMH |
1959 | /* Set up key map */ |
1960 | ||
1961 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1962 | GFP_KERNEL); | |
1963 | if (!hotkey_keycode_map) { | |
1964 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
1965 | return -ENOMEM; | |
1966 | } | |
1967 | ||
1968 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1969 | dbg_printk(TPACPI_DBG_INIT, | |
1970 | "using Lenovo default hot key map\n"); | |
1971 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1972 | TPACPI_HOTKEY_MAP_SIZE); | |
1973 | } else { | |
1974 | dbg_printk(TPACPI_DBG_INIT, | |
1975 | "using IBM default hot key map\n"); | |
1976 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1977 | TPACPI_HOTKEY_MAP_SIZE); | |
1978 | } | |
1979 | ||
6a38abbf HMH |
1980 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1981 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1982 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1983 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1984 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1985 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1986 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1987 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1988 | set_bit(hotkey_keycode_map[i], | |
1989 | tpacpi_inputdev->keybit); | |
1990 | } else { | |
1991 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1992 | hotkey_reserved_mask |= 1 << i; | |
1993 | } | |
1994 | } | |
1995 | ||
5c29d58f HMH |
1996 | if (tp_features.hotkey_wlsw) { |
1997 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1998 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1999 | } | |
2000 | ||
1a343760 HMH |
2001 | dbg_printk(TPACPI_DBG_INIT, |
2002 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
2003 | res = hotkey_status_set(1); |
2004 | if (res) | |
2005 | return res; | |
01e88f25 HMH |
2006 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
2007 | & ~hotkey_reserved_mask) | |
1a343760 | 2008 | | hotkey_orig_mask); |
01e88f25 | 2009 | if (res < 0 && res != -ENXIO) |
1a343760 | 2010 | return res; |
ff80f137 HMH |
2011 | |
2012 | dbg_printk(TPACPI_DBG_INIT, | |
2013 | "legacy hot key reporting over procfs %s\n", | |
2014 | (hotkey_report_mode < 2) ? | |
2015 | "enabled" : "disabled"); | |
01e88f25 HMH |
2016 | |
2017 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2018 | tpacpi_inputdev->open = &hotkey_inputdev_open; | |
2019 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
2020 | ||
2021 | hotkey_poll_setup_safe(1); | |
2022 | #endif | |
56b6aeb0 HMH |
2023 | } |
2024 | ||
d8fd94d9 | 2025 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
2026 | } |
2027 | ||
2028 | static void hotkey_exit(void) | |
2029 | { | |
01e88f25 HMH |
2030 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2031 | hotkey_poll_stop_sync(); | |
2032 | #endif | |
2033 | ||
d8fd94d9 | 2034 | if (tp_features.hotkey) { |
b2c985e7 HMH |
2035 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hot key mask\n"); |
2036 | /* no short-circuit boolean operator below! */ | |
2037 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2038 | hotkey_status_set(hotkey_orig_status)) != 0) | |
2039 | printk(IBM_ERR "failed to restore hot key mask to BIOS defaults\n"); | |
5fba344c | 2040 | } |
a0416420 HMH |
2041 | |
2042 | if (hotkey_dev_attributes) { | |
2043 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2044 | hotkey_dev_attributes = NULL; | |
2045 | } | |
56b6aeb0 HMH |
2046 | } |
2047 | ||
2048 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2049 | { | |
6a38abbf | 2050 | u32 hkey; |
b7c8c200 | 2051 | unsigned int scancode; |
3eea123d | 2052 | int send_acpi_ev; |
3e5ce914 | 2053 | int ignore_acpi_ev; |
3eea123d HMH |
2054 | |
2055 | if (event != 0x80) { | |
2056 | printk(IBM_ERR "unknown HKEY notification event %d\n", event); | |
2057 | /* forward it to userspace, maybe it knows how to handle it */ | |
2058 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
2059 | ibm->acpi->device->dev.bus_id, | |
2060 | event, 0); | |
2061 | return; | |
2062 | } | |
2063 | ||
2064 | while (1) { | |
2065 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
2066 | printk(IBM_ERR "failed to retrieve HKEY event\n"); | |
2067 | return; | |
2068 | } | |
2069 | ||
2070 | if (hkey == 0) { | |
2071 | /* queue empty */ | |
2072 | return; | |
2073 | } | |
2074 | ||
2075 | send_acpi_ev = 0; | |
3e5ce914 | 2076 | ignore_acpi_ev = 0; |
56b6aeb0 | 2077 | |
ff80f137 HMH |
2078 | switch (hkey >> 12) { |
2079 | case 1: | |
2080 | /* 0x1000-0x1FFF: key presses */ | |
2081 | scancode = hkey & 0xfff; | |
2082 | if (scancode > 0 && scancode < 0x21) { | |
2083 | scancode--; | |
01e88f25 HMH |
2084 | if (!(hotkey_source_mask & (1 << scancode))) { |
2085 | tpacpi_input_send_key(scancode); | |
2086 | } else { | |
2087 | ignore_acpi_ev = 1; | |
2088 | } | |
ff80f137 HMH |
2089 | } else { |
2090 | printk(IBM_ERR | |
2091 | "hotkey 0x%04x out of range for keyboard map\n", | |
2092 | hkey); | |
2093 | send_acpi_ev = 1; | |
2094 | } | |
2095 | break; | |
2096 | case 5: | |
2097 | /* 0x5000-0x5FFF: LID */ | |
2098 | /* we don't handle it through this path, just | |
2099 | * eat up known LID events */ | |
2100 | if (hkey != 0x5001 && hkey != 0x5002) { | |
2101 | printk(IBM_ERR | |
3eea123d HMH |
2102 | "unknown LID-related HKEY event: 0x%04x\n", |
2103 | hkey); | |
ff80f137 | 2104 | send_acpi_ev = 1; |
3e5ce914 HMH |
2105 | } else { |
2106 | ignore_acpi_ev = 1; | |
ff80f137 HMH |
2107 | } |
2108 | break; | |
2109 | case 7: | |
2110 | /* 0x7000-0x7FFF: misc */ | |
2111 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2112 | tpacpi_input_send_radiosw(); | |
6a38abbf | 2113 | break; |
6a38abbf | 2114 | } |
ff80f137 HMH |
2115 | /* fallthrough to default */ |
2116 | default: | |
2117 | /* case 2: dock-related */ | |
2118 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
2119 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
2120 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
2121 | printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); | |
2122 | send_acpi_ev = 1; | |
6a38abbf | 2123 | } |
ff80f137 | 2124 | |
3eea123d | 2125 | /* Legacy events */ |
3e5ce914 | 2126 | if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { |
3eea123d | 2127 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); |
3e5ce914 | 2128 | } |
ff80f137 | 2129 | |
3eea123d | 2130 | /* netlink events */ |
3e5ce914 | 2131 | if (!ignore_acpi_ev && send_acpi_ev) { |
3eea123d HMH |
2132 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2133 | ibm->acpi->device->dev.bus_id, | |
2134 | event, hkey); | |
2135 | } | |
56b6aeb0 HMH |
2136 | } |
2137 | } | |
2138 | ||
5c29d58f HMH |
2139 | static void hotkey_resume(void) |
2140 | { | |
b2c985e7 HMH |
2141 | if (hotkey_mask_get()) |
2142 | printk(IBM_ERR "error while trying to read hot key mask from firmware\n"); | |
5c29d58f | 2143 | tpacpi_input_send_radiosw(); |
01e88f25 HMH |
2144 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2145 | hotkey_poll_setup_safe(0); | |
2146 | #endif | |
5c29d58f HMH |
2147 | } |
2148 | ||
a0416420 | 2149 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2150 | static int hotkey_read(char *p) |
1da177e4 | 2151 | { |
ae92bd17 | 2152 | int res, status; |
1da177e4 LT |
2153 | int len = 0; |
2154 | ||
d8fd94d9 | 2155 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2156 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2157 | return len; | |
2158 | } | |
2159 | ||
fc589a3c HMH |
2160 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2161 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2162 | res = hotkey_status_get(&status); |
2163 | if (!res) | |
2164 | res = hotkey_mask_get(); | |
40ca9fdf | 2165 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2166 | if (res) |
2167 | return res; | |
1da177e4 LT |
2168 | |
2169 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2170 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2171 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2172 | len += sprintf(p + len, |
2173 | "commands:\tenable, disable, reset, <mask>\n"); | |
2174 | } else { | |
2175 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2176 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2177 | } | |
2178 | ||
2179 | return len; | |
2180 | } | |
2181 | ||
78f81cc4 | 2182 | static int hotkey_write(char *buf) |
1da177e4 | 2183 | { |
ae92bd17 HMH |
2184 | int res, status; |
2185 | u32 mask; | |
1da177e4 | 2186 | char *cmd; |
1da177e4 | 2187 | |
d8fd94d9 | 2188 | if (!tp_features.hotkey) |
1da177e4 LT |
2189 | return -ENODEV; |
2190 | ||
fc589a3c HMH |
2191 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2192 | return -ERESTARTSYS; | |
40ca9fdf | 2193 | |
b2c985e7 HMH |
2194 | status = -1; |
2195 | mask = hotkey_mask; | |
78f81cc4 | 2196 | |
40ca9fdf | 2197 | res = 0; |
1da177e4 LT |
2198 | while ((cmd = next_cmd(&buf))) { |
2199 | if (strlencmp(cmd, "enable") == 0) { | |
2200 | status = 1; | |
2201 | } else if (strlencmp(cmd, "disable") == 0) { | |
2202 | status = 0; | |
2203 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2204 | status = hotkey_orig_status; |
2205 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2206 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2207 | /* mask set */ | |
2208 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2209 | /* mask set */ | |
40ca9fdf HMH |
2210 | } else { |
2211 | res = -EINVAL; | |
2212 | goto errexit; | |
2213 | } | |
1da177e4 | 2214 | } |
b2c985e7 HMH |
2215 | if (status != -1) |
2216 | res = hotkey_status_set(status); | |
1da177e4 | 2217 | |
b2c985e7 HMH |
2218 | if (!res && mask != hotkey_mask) |
2219 | res = hotkey_mask_set(mask); | |
1da177e4 | 2220 | |
40ca9fdf HMH |
2221 | errexit: |
2222 | mutex_unlock(&hotkey_mutex); | |
2223 | return res; | |
78f81cc4 | 2224 | } |
1da177e4 | 2225 | |
1ba90e3a TR |
2226 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
2227 | {IBM_HKEY_HID, 0}, | |
2228 | {"", 0}, | |
2229 | }; | |
2230 | ||
8d376cd6 | 2231 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2232 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2233 | .notify = hotkey_notify, |
2234 | .handle = &hkey_handle, | |
2235 | .type = ACPI_DEVICE_NOTIFY, | |
2236 | }; | |
2237 | ||
a5763f22 HMH |
2238 | static struct ibm_struct hotkey_driver_data = { |
2239 | .name = "hotkey", | |
a5763f22 HMH |
2240 | .read = hotkey_read, |
2241 | .write = hotkey_write, | |
2242 | .exit = hotkey_exit, | |
5c29d58f | 2243 | .resume = hotkey_resume, |
8d376cd6 | 2244 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2245 | }; |
2246 | ||
56b6aeb0 HMH |
2247 | /************************************************************************* |
2248 | * Bluetooth subdriver | |
2249 | */ | |
1da177e4 | 2250 | |
f74a27d4 HMH |
2251 | enum { |
2252 | /* ACPI GBDC/SBDC bits */ | |
2253 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2254 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2255 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2256 | }; | |
2257 | ||
2258 | static int bluetooth_get_radiosw(void); | |
2259 | static int bluetooth_set_radiosw(int radio_on); | |
2260 | ||
d3a6ade4 HMH |
2261 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2262 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2263 | struct device_attribute *attr, | |
2264 | char *buf) | |
2265 | { | |
2266 | int status; | |
2267 | ||
2268 | status = bluetooth_get_radiosw(); | |
2269 | if (status < 0) | |
2270 | return status; | |
2271 | ||
2272 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2273 | } | |
2274 | ||
2275 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2276 | struct device_attribute *attr, | |
2277 | const char *buf, size_t count) | |
2278 | { | |
2279 | unsigned long t; | |
2280 | int res; | |
2281 | ||
2282 | if (parse_strtoul(buf, 1, &t)) | |
2283 | return -EINVAL; | |
2284 | ||
2285 | res = bluetooth_set_radiosw(t); | |
2286 | ||
2287 | return (res) ? res : count; | |
2288 | } | |
2289 | ||
2290 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2291 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2292 | bluetooth_enable_show, bluetooth_enable_store); |
2293 | ||
2294 | /* --------------------------------------------------------------------- */ | |
2295 | ||
2296 | static struct attribute *bluetooth_attributes[] = { | |
2297 | &dev_attr_bluetooth_enable.attr, | |
2298 | NULL | |
2299 | }; | |
2300 | ||
2301 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2302 | .attrs = bluetooth_attributes, |
2303 | }; | |
2304 | ||
a5763f22 | 2305 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2306 | { |
d3a6ade4 | 2307 | int res; |
d6fdd1e9 HMH |
2308 | int status = 0; |
2309 | ||
fe08bc4b HMH |
2310 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2311 | ||
8d376cd6 | 2312 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2313 | |
78f81cc4 BD |
2314 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2315 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2316 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2317 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2318 | ||
2319 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2320 | str_supported(tp_features.bluetooth), | |
2321 | status); | |
2322 | ||
d3a6ade4 HMH |
2323 | if (tp_features.bluetooth) { |
2324 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2325 | /* no bluetooth hardware present in system */ | |
2326 | tp_features.bluetooth = 0; | |
2327 | dbg_printk(TPACPI_DBG_INIT, | |
2328 | "bluetooth hardware not installed\n"); | |
2329 | } else { | |
2330 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2331 | &bluetooth_attr_group); | |
2332 | if (res) | |
2333 | return res; | |
2334 | } | |
d6fdd1e9 | 2335 | } |
fe08bc4b | 2336 | |
d8fd94d9 | 2337 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2338 | } |
2339 | ||
d3a6ade4 HMH |
2340 | static void bluetooth_exit(void) |
2341 | { | |
2342 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2343 | &bluetooth_attr_group); | |
2344 | } | |
2345 | ||
d6fdd1e9 | 2346 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2347 | { |
2348 | int status; | |
2349 | ||
d6fdd1e9 HMH |
2350 | if (!tp_features.bluetooth) |
2351 | return -ENODEV; | |
1da177e4 | 2352 | |
d6fdd1e9 HMH |
2353 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2354 | return -EIO; | |
2355 | ||
2356 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2357 | } | |
2358 | ||
2359 | static int bluetooth_set_radiosw(int radio_on) | |
2360 | { | |
2361 | int status; | |
2362 | ||
2363 | if (!tp_features.bluetooth) | |
2364 | return -ENODEV; | |
2365 | ||
2366 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2367 | return -EIO; | |
2368 | if (radio_on) | |
2369 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2370 | else | |
2371 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2372 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2373 | return -EIO; | |
2374 | ||
2375 | return 0; | |
1da177e4 LT |
2376 | } |
2377 | ||
d3a6ade4 | 2378 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2379 | static int bluetooth_read(char *p) |
1da177e4 LT |
2380 | { |
2381 | int len = 0; | |
d6fdd1e9 | 2382 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2383 | |
d8fd94d9 | 2384 | if (!tp_features.bluetooth) |
1da177e4 | 2385 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2386 | else { |
d6fdd1e9 HMH |
2387 | len += sprintf(p + len, "status:\t\t%s\n", |
2388 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2389 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2390 | } | |
2391 | ||
2392 | return len; | |
2393 | } | |
2394 | ||
78f81cc4 | 2395 | static int bluetooth_write(char *buf) |
1da177e4 | 2396 | { |
1da177e4 | 2397 | char *cmd; |
1da177e4 | 2398 | |
d8fd94d9 | 2399 | if (!tp_features.bluetooth) |
78f81cc4 | 2400 | return -ENODEV; |
1da177e4 LT |
2401 | |
2402 | while ((cmd = next_cmd(&buf))) { | |
2403 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2404 | bluetooth_set_radiosw(1); |
1da177e4 | 2405 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2406 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2407 | } else |
2408 | return -EINVAL; | |
1da177e4 LT |
2409 | } |
2410 | ||
1da177e4 LT |
2411 | return 0; |
2412 | } | |
2413 | ||
a5763f22 HMH |
2414 | static struct ibm_struct bluetooth_driver_data = { |
2415 | .name = "bluetooth", | |
2416 | .read = bluetooth_read, | |
2417 | .write = bluetooth_write, | |
d3a6ade4 | 2418 | .exit = bluetooth_exit, |
a5763f22 HMH |
2419 | }; |
2420 | ||
56b6aeb0 HMH |
2421 | /************************************************************************* |
2422 | * Wan subdriver | |
2423 | */ | |
2424 | ||
f74a27d4 HMH |
2425 | enum { |
2426 | /* ACPI GWAN/SWAN bits */ | |
2427 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2428 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2429 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2430 | }; | |
2431 | ||
2432 | static int wan_get_radiosw(void); | |
2433 | static int wan_set_radiosw(int radio_on); | |
2434 | ||
d3a6ade4 HMH |
2435 | /* sysfs wan enable ---------------------------------------------------- */ |
2436 | static ssize_t wan_enable_show(struct device *dev, | |
2437 | struct device_attribute *attr, | |
2438 | char *buf) | |
2439 | { | |
2440 | int status; | |
2441 | ||
2442 | status = wan_get_radiosw(); | |
2443 | if (status < 0) | |
2444 | return status; | |
2445 | ||
2446 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2447 | } | |
2448 | ||
2449 | static ssize_t wan_enable_store(struct device *dev, | |
2450 | struct device_attribute *attr, | |
2451 | const char *buf, size_t count) | |
2452 | { | |
2453 | unsigned long t; | |
2454 | int res; | |
2455 | ||
2456 | if (parse_strtoul(buf, 1, &t)) | |
2457 | return -EINVAL; | |
2458 | ||
2459 | res = wan_set_radiosw(t); | |
2460 | ||
2461 | return (res) ? res : count; | |
2462 | } | |
2463 | ||
2464 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2465 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2466 | wan_enable_show, wan_enable_store); |
2467 | ||
2468 | /* --------------------------------------------------------------------- */ | |
2469 | ||
2470 | static struct attribute *wan_attributes[] = { | |
2471 | &dev_attr_wan_enable.attr, | |
2472 | NULL | |
2473 | }; | |
2474 | ||
2475 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2476 | .attrs = wan_attributes, |
2477 | }; | |
2478 | ||
a5763f22 | 2479 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2480 | { |
d3a6ade4 | 2481 | int res; |
d6fdd1e9 HMH |
2482 | int status = 0; |
2483 | ||
fe08bc4b HMH |
2484 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2485 | ||
8d376cd6 | 2486 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 2487 | |
d8fd94d9 | 2488 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2489 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2490 | ||
2491 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2492 | str_supported(tp_features.wan), | |
2493 | status); | |
2494 | ||
d3a6ade4 HMH |
2495 | if (tp_features.wan) { |
2496 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2497 | /* no wan hardware present in system */ | |
2498 | tp_features.wan = 0; | |
2499 | dbg_printk(TPACPI_DBG_INIT, | |
2500 | "wan hardware not installed\n"); | |
2501 | } else { | |
2502 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2503 | &wan_attr_group); | |
2504 | if (res) | |
2505 | return res; | |
2506 | } | |
d6fdd1e9 | 2507 | } |
fe08bc4b | 2508 | |
d8fd94d9 | 2509 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2510 | } |
2511 | ||
d3a6ade4 HMH |
2512 | static void wan_exit(void) |
2513 | { | |
2514 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2515 | &wan_attr_group); | |
2516 | } | |
2517 | ||
d6fdd1e9 | 2518 | static int wan_get_radiosw(void) |
42adb53c JF |
2519 | { |
2520 | int status; | |
2521 | ||
d6fdd1e9 HMH |
2522 | if (!tp_features.wan) |
2523 | return -ENODEV; | |
42adb53c | 2524 | |
d6fdd1e9 HMH |
2525 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2526 | return -EIO; | |
2527 | ||
2528 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2529 | } | |
2530 | ||
2531 | static int wan_set_radiosw(int radio_on) | |
2532 | { | |
2533 | int status; | |
2534 | ||
2535 | if (!tp_features.wan) | |
2536 | return -ENODEV; | |
2537 | ||
2538 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2539 | return -EIO; | |
2540 | if (radio_on) | |
2541 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2542 | else | |
2543 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2544 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2545 | return -EIO; | |
2546 | ||
2547 | return 0; | |
42adb53c JF |
2548 | } |
2549 | ||
d3a6ade4 | 2550 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2551 | static int wan_read(char *p) |
2552 | { | |
2553 | int len = 0; | |
d6fdd1e9 | 2554 | int status = wan_get_radiosw(); |
42adb53c | 2555 | |
d8fd94d9 | 2556 | if (!tp_features.wan) |
42adb53c | 2557 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2558 | else { |
d6fdd1e9 HMH |
2559 | len += sprintf(p + len, "status:\t\t%s\n", |
2560 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2561 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2562 | } | |
2563 | ||
2564 | return len; | |
2565 | } | |
2566 | ||
2567 | static int wan_write(char *buf) | |
2568 | { | |
42adb53c | 2569 | char *cmd; |
42adb53c | 2570 | |
d8fd94d9 | 2571 | if (!tp_features.wan) |
42adb53c JF |
2572 | return -ENODEV; |
2573 | ||
2574 | while ((cmd = next_cmd(&buf))) { | |
2575 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2576 | wan_set_radiosw(1); |
42adb53c | 2577 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2578 | wan_set_radiosw(0); |
42adb53c JF |
2579 | } else |
2580 | return -EINVAL; | |
42adb53c JF |
2581 | } |
2582 | ||
42adb53c JF |
2583 | return 0; |
2584 | } | |
2585 | ||
a5763f22 HMH |
2586 | static struct ibm_struct wan_driver_data = { |
2587 | .name = "wan", | |
2588 | .read = wan_read, | |
2589 | .write = wan_write, | |
d3a6ade4 | 2590 | .exit = wan_exit, |
92641177 | 2591 | .flags.experimental = 1, |
a5763f22 HMH |
2592 | }; |
2593 | ||
56b6aeb0 HMH |
2594 | /************************************************************************* |
2595 | * Video subdriver | |
2596 | */ | |
2597 | ||
f74a27d4 HMH |
2598 | enum video_access_mode { |
2599 | TPACPI_VIDEO_NONE = 0, | |
2600 | TPACPI_VIDEO_570, /* 570 */ | |
2601 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2602 | TPACPI_VIDEO_NEW, /* all others */ | |
2603 | }; | |
2604 | ||
2605 | enum { /* video status flags, based on VIDEO_570 */ | |
2606 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2607 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2608 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2609 | }; | |
2610 | ||
2611 | enum { /* TPACPI_VIDEO_570 constants */ | |
2612 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2613 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2614 | * video_status_flags */ | |
2615 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2616 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2617 | }; | |
2618 | ||
9a8e1738 HMH |
2619 | static enum video_access_mode video_supported; |
2620 | static int video_orig_autosw; | |
78f81cc4 | 2621 | |
f74a27d4 HMH |
2622 | static int video_autosw_get(void); |
2623 | static int video_autosw_set(int enable); | |
2624 | ||
56b6aeb0 HMH |
2625 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
2626 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
2627 | "\\_SB.PCI0.VID0", /* 770e */ | |
2628 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
2629 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
2630 | ); /* R30, R31 */ | |
2631 | ||
2632 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
2633 | ||
a5763f22 | 2634 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2635 | { |
78f81cc4 BD |
2636 | int ivga; |
2637 | ||
fe08bc4b HMH |
2638 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2639 | ||
8d376cd6 HMH |
2640 | IBM_ACPIHANDLE_INIT(vid); |
2641 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2642 | |
78f81cc4 BD |
2643 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2644 | /* G41, assume IVGA doesn't change */ | |
2645 | vid_handle = vid2_handle; | |
2646 | ||
2647 | if (!vid_handle) | |
2648 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2649 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2650 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2651 | /* 570 */ | |
efa27145 | 2652 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2653 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2654 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2655 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2656 | else |
2657 | /* all others */ | |
efa27145 | 2658 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2659 | |
fe08bc4b HMH |
2660 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2661 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2662 | video_supported); | |
2663 | ||
5fba344c | 2664 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2665 | } |
2666 | ||
56b6aeb0 HMH |
2667 | static void video_exit(void) |
2668 | { | |
83f34724 HMH |
2669 | dbg_printk(TPACPI_DBG_EXIT, |
2670 | "restoring original video autoswitch mode\n"); | |
2671 | if (video_autosw_set(video_orig_autosw)) | |
2672 | printk(IBM_ERR "error while trying to restore original " | |
2673 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
2674 | } |
2675 | ||
83f34724 | 2676 | static int video_outputsw_get(void) |
1da177e4 LT |
2677 | { |
2678 | int status = 0; | |
2679 | int i; | |
2680 | ||
83f34724 HMH |
2681 | switch (video_supported) { |
2682 | case TPACPI_VIDEO_570: | |
2683 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2684 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2685 | return -EIO; | |
2686 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2687 | break; | |
2688 | case TPACPI_VIDEO_770: | |
2689 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2690 | return -EIO; | |
2691 | if (i) | |
2692 | status |= TP_ACPI_VIDEO_S_LCD; | |
2693 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2694 | return -EIO; | |
2695 | if (i) | |
2696 | status |= TP_ACPI_VIDEO_S_CRT; | |
2697 | break; | |
2698 | case TPACPI_VIDEO_NEW: | |
2699 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2700 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2701 | return -EIO; | |
2702 | if (i) | |
2703 | status |= TP_ACPI_VIDEO_S_CRT; | |
2704 | ||
2705 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2706 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2707 | return -EIO; | |
2708 | if (i) | |
2709 | status |= TP_ACPI_VIDEO_S_LCD; | |
2710 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2711 | return -EIO; | |
2712 | if (i) | |
2713 | status |= TP_ACPI_VIDEO_S_DVI; | |
2714 | break; | |
2715 | default: | |
2716 | return -ENOSYS; | |
78f81cc4 BD |
2717 | } |
2718 | ||
2719 | return status; | |
2720 | } | |
1da177e4 | 2721 | |
83f34724 | 2722 | static int video_outputsw_set(int status) |
78f81cc4 | 2723 | { |
83f34724 HMH |
2724 | int autosw; |
2725 | int res = 0; | |
2726 | ||
2727 | switch (video_supported) { | |
2728 | case TPACPI_VIDEO_570: | |
2729 | res = acpi_evalf(NULL, NULL, | |
2730 | "\\_SB.PHS2", "vdd", | |
2731 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2732 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
2733 | break; | |
2734 | case TPACPI_VIDEO_770: | |
2735 | autosw = video_autosw_get(); | |
2736 | if (autosw < 0) | |
2737 | return autosw; | |
1da177e4 | 2738 | |
83f34724 HMH |
2739 | res = video_autosw_set(1); |
2740 | if (res) | |
2741 | return res; | |
2742 | res = acpi_evalf(vid_handle, NULL, | |
2743 | "ASWT", "vdd", status * 0x100, 0); | |
2744 | if (!autosw && video_autosw_set(autosw)) { | |
2745 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
2746 | return -EIO; | |
2747 | } | |
2748 | break; | |
2749 | case TPACPI_VIDEO_NEW: | |
2750 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
2751 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
2752 | break; | |
2753 | default: | |
2754 | return -ENOSYS; | |
2755 | } | |
1da177e4 | 2756 | |
83f34724 | 2757 | return (res)? 0 : -EIO; |
1da177e4 LT |
2758 | } |
2759 | ||
83f34724 | 2760 | static int video_autosw_get(void) |
78f81cc4 | 2761 | { |
83f34724 | 2762 | int autosw = 0; |
78f81cc4 | 2763 | |
83f34724 HMH |
2764 | switch (video_supported) { |
2765 | case TPACPI_VIDEO_570: | |
2766 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
2767 | return -EIO; | |
2768 | break; | |
2769 | case TPACPI_VIDEO_770: | |
2770 | case TPACPI_VIDEO_NEW: | |
2771 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2772 | return -EIO; | |
2773 | break; | |
2774 | default: | |
2775 | return -ENOSYS; | |
2776 | } | |
78f81cc4 | 2777 | |
83f34724 | 2778 | return autosw & 1; |
78f81cc4 BD |
2779 | } |
2780 | ||
83f34724 | 2781 | static int video_autosw_set(int enable) |
78f81cc4 | 2782 | { |
83f34724 HMH |
2783 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2784 | return -EIO; | |
2785 | return 0; | |
78f81cc4 BD |
2786 | } |
2787 | ||
83f34724 | 2788 | static int video_outputsw_cycle(void) |
78f81cc4 | 2789 | { |
83f34724 HMH |
2790 | int autosw = video_autosw_get(); |
2791 | int res; | |
78f81cc4 | 2792 | |
83f34724 HMH |
2793 | if (autosw < 0) |
2794 | return autosw; | |
78f81cc4 | 2795 | |
83f34724 HMH |
2796 | switch (video_supported) { |
2797 | case TPACPI_VIDEO_570: | |
2798 | res = video_autosw_set(1); | |
2799 | if (res) | |
2800 | return res; | |
2801 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2802 | break; | |
2803 | case TPACPI_VIDEO_770: | |
2804 | case TPACPI_VIDEO_NEW: | |
2805 | res = video_autosw_set(1); | |
2806 | if (res) | |
2807 | return res; | |
2808 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2809 | break; | |
2810 | default: | |
2811 | return -ENOSYS; | |
2812 | } | |
2813 | if (!autosw && video_autosw_set(autosw)) { | |
2814 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
2815 | return -EIO; | |
78f81cc4 BD |
2816 | } |
2817 | ||
83f34724 HMH |
2818 | return (res)? 0 : -EIO; |
2819 | } | |
2820 | ||
2821 | static int video_expand_toggle(void) | |
2822 | { | |
2823 | switch (video_supported) { | |
2824 | case TPACPI_VIDEO_570: | |
2825 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2826 | 0 : -EIO; | |
2827 | case TPACPI_VIDEO_770: | |
2828 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2829 | 0 : -EIO; | |
2830 | case TPACPI_VIDEO_NEW: | |
2831 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2832 | 0 : -EIO; | |
2833 | default: | |
2834 | return -ENOSYS; | |
2835 | } | |
2836 | /* not reached */ | |
78f81cc4 BD |
2837 | } |
2838 | ||
56b6aeb0 HMH |
2839 | static int video_read(char *p) |
2840 | { | |
83f34724 | 2841 | int status, autosw; |
56b6aeb0 HMH |
2842 | int len = 0; |
2843 | ||
83f34724 | 2844 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
2845 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2846 | return len; | |
2847 | } | |
2848 | ||
83f34724 HMH |
2849 | status = video_outputsw_get(); |
2850 | if (status < 0) | |
2851 | return status; | |
2852 | ||
2853 | autosw = video_autosw_get(); | |
2854 | if (autosw < 0) | |
2855 | return autosw; | |
2856 | ||
56b6aeb0 HMH |
2857 | len += sprintf(p + len, "status:\t\tsupported\n"); |
2858 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
2859 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 2860 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2861 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
2862 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
2863 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
2864 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 2865 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2866 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
2867 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
2868 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
2869 | ||
2870 | return len; | |
2871 | } | |
2872 | ||
78f81cc4 | 2873 | static int video_write(char *buf) |
1da177e4 LT |
2874 | { |
2875 | char *cmd; | |
2876 | int enable, disable, status; | |
83f34724 | 2877 | int res; |
1da177e4 | 2878 | |
83f34724 | 2879 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
2880 | return -ENODEV; |
2881 | ||
83f34724 HMH |
2882 | enable = 0; |
2883 | disable = 0; | |
1da177e4 LT |
2884 | |
2885 | while ((cmd = next_cmd(&buf))) { | |
2886 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 2887 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2888 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2889 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2890 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2891 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2892 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2893 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2894 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2895 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2896 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2897 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2898 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2899 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2900 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2901 | res = video_autosw_set(1); |
2902 | if (res) | |
2903 | return res; | |
1da177e4 | 2904 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2905 | res = video_autosw_set(0); |
2906 | if (res) | |
2907 | return res; | |
1da177e4 | 2908 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2909 | res = video_outputsw_cycle(); |
2910 | if (res) | |
2911 | return res; | |
1da177e4 | 2912 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2913 | res = video_expand_toggle(); |
2914 | if (res) | |
2915 | return res; | |
1da177e4 LT |
2916 | } else |
2917 | return -EINVAL; | |
2918 | } | |
2919 | ||
2920 | if (enable || disable) { | |
83f34724 HMH |
2921 | status = video_outputsw_get(); |
2922 | if (status < 0) | |
2923 | return status; | |
2924 | res = video_outputsw_set((status & ~disable) | enable); | |
2925 | if (res) | |
2926 | return res; | |
1da177e4 LT |
2927 | } |
2928 | ||
2929 | return 0; | |
2930 | } | |
2931 | ||
a5763f22 HMH |
2932 | static struct ibm_struct video_driver_data = { |
2933 | .name = "video", | |
2934 | .read = video_read, | |
2935 | .write = video_write, | |
2936 | .exit = video_exit, | |
2937 | }; | |
2938 | ||
56b6aeb0 HMH |
2939 | /************************************************************************* |
2940 | * Light (thinklight) subdriver | |
2941 | */ | |
1da177e4 | 2942 | |
56b6aeb0 HMH |
2943 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2944 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
2945 | ||
a5763f22 | 2946 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2947 | { |
fe08bc4b HMH |
2948 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2949 | ||
8d376cd6 HMH |
2950 | IBM_ACPIHANDLE_INIT(ledb); |
2951 | IBM_ACPIHANDLE_INIT(lght); | |
2952 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2953 | |
78f81cc4 | 2954 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2955 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2956 | |
d8fd94d9 | 2957 | if (tp_features.light) |
78f81cc4 BD |
2958 | /* light status not supported on |
2959 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2960 | tp_features.light_status = |
2961 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2962 | |
fe08bc4b | 2963 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2964 | str_supported(tp_features.light)); |
fe08bc4b | 2965 | |
d8fd94d9 | 2966 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2967 | } |
2968 | ||
78f81cc4 | 2969 | static int light_read(char *p) |
1da177e4 LT |
2970 | { |
2971 | int len = 0; | |
2972 | int status = 0; | |
2973 | ||
d8fd94d9 | 2974 | if (!tp_features.light) { |
78f81cc4 | 2975 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2976 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2977 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2978 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2979 | } else { | |
1da177e4 LT |
2980 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2981 | return -EIO; | |
2982 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2983 | len += sprintf(p + len, "commands:\ton, off\n"); |
2984 | } | |
1da177e4 LT |
2985 | |
2986 | return len; | |
2987 | } | |
2988 | ||
78f81cc4 | 2989 | static int light_write(char *buf) |
1da177e4 LT |
2990 | { |
2991 | int cmos_cmd, lght_cmd; | |
2992 | char *cmd; | |
2993 | int success; | |
78f81cc4 | 2994 | |
d8fd94d9 | 2995 | if (!tp_features.light) |
78f81cc4 BD |
2996 | return -ENODEV; |
2997 | ||
1da177e4 LT |
2998 | while ((cmd = next_cmd(&buf))) { |
2999 | if (strlencmp(cmd, "on") == 0) { | |
3000 | cmos_cmd = 0x0c; | |
3001 | lght_cmd = 1; | |
3002 | } else if (strlencmp(cmd, "off") == 0) { | |
3003 | cmos_cmd = 0x0d; | |
3004 | lght_cmd = 0; | |
3005 | } else | |
3006 | return -EINVAL; | |
78f81cc4 | 3007 | |
1da177e4 | 3008 | success = cmos_handle ? |
78f81cc4 BD |
3009 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
3010 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
3011 | if (!success) |
3012 | return -EIO; | |
3013 | } | |
3014 | ||
3015 | return 0; | |
3016 | } | |
3017 | ||
a5763f22 HMH |
3018 | static struct ibm_struct light_driver_data = { |
3019 | .name = "light", | |
3020 | .read = light_read, | |
3021 | .write = light_write, | |
3022 | }; | |
3023 | ||
56b6aeb0 HMH |
3024 | /************************************************************************* |
3025 | * Dock subdriver | |
3026 | */ | |
1da177e4 | 3027 | |
85998248 | 3028 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3029 | |
f74a27d4 HMH |
3030 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3031 | static int dock_read(char *p); | |
3032 | static int dock_write(char *buf); | |
3033 | ||
56b6aeb0 HMH |
3034 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
3035 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
3036 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3037 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3038 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3039 | ||
5fba344c HMH |
3040 | /* don't list other alternatives as we install a notify handler on the 570 */ |
3041 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
3042 | ||
1ba90e3a TR |
3043 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3044 | {PCI_ROOT_HID_STRING, 0}, | |
3045 | {"", 0}, | |
3046 | }; | |
3047 | ||
d94a7f16 HMH |
3048 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3049 | { | |
3050 | .notify = dock_notify, | |
3051 | .handle = &dock_handle, | |
3052 | .type = ACPI_SYSTEM_NOTIFY, | |
3053 | }, | |
3054 | { | |
996fba08 HMH |
3055 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3056 | * We just use it to get notifications of dock hotplug | |
3057 | * in very old thinkpads */ | |
1ba90e3a | 3058 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3059 | .notify = dock_notify, |
3060 | .handle = &pci_handle, | |
3061 | .type = ACPI_SYSTEM_NOTIFY, | |
3062 | }, | |
3063 | }; | |
3064 | ||
3065 | static struct ibm_struct dock_driver_data[2] = { | |
3066 | { | |
3067 | .name = "dock", | |
3068 | .read = dock_read, | |
3069 | .write = dock_write, | |
3070 | .acpi = &ibm_dock_acpidriver[0], | |
3071 | }, | |
3072 | { | |
3073 | .name = "dock", | |
3074 | .acpi = &ibm_dock_acpidriver[1], | |
3075 | }, | |
3076 | }; | |
3077 | ||
1da177e4 LT |
3078 | #define dock_docked() (_sta(dock_handle) & 1) |
3079 | ||
a5763f22 | 3080 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3081 | { |
fe08bc4b HMH |
3082 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3083 | ||
8d376cd6 | 3084 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 3085 | |
fe08bc4b HMH |
3086 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3087 | str_supported(dock_handle != NULL)); | |
3088 | ||
5fba344c HMH |
3089 | return (dock_handle)? 0 : 1; |
3090 | } | |
3091 | ||
d94a7f16 HMH |
3092 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3093 | { | |
3094 | int dock2_needed; | |
3095 | ||
3096 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3097 | ||
3098 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3099 | dock_driver_data[0].flags.acpi_notify_installed) { | |
3100 | IBM_ACPIHANDLE_INIT(pci); | |
3101 | dock2_needed = (pci_handle != NULL); | |
3102 | vdbg_printk(TPACPI_DBG_INIT, | |
3103 | "dock PCI handler for the TP 570 is %s\n", | |
3104 | str_supported(dock2_needed)); | |
3105 | } else { | |
3106 | vdbg_printk(TPACPI_DBG_INIT, | |
3107 | "dock subdriver part 2 not required\n"); | |
3108 | dock2_needed = 0; | |
3109 | } | |
3110 | ||
3111 | return (dock2_needed)? 0 : 1; | |
3112 | } | |
3113 | ||
56b6aeb0 HMH |
3114 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3115 | { | |
3116 | int docked = dock_docked(); | |
1ba90e3a TR |
3117 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3118 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3119 | int data; |
56b6aeb0 HMH |
3120 | |
3121 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3122 | data = 1; /* button */ |
56b6aeb0 | 3123 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3124 | data = 3; /* dock */ |
56b6aeb0 | 3125 | else if (event == 3 && docked) |
962ce8ca | 3126 | data = 1; /* button */ |
56b6aeb0 | 3127 | else if (event == 3 && !docked) |
962ce8ca | 3128 | data = 2; /* undock */ |
56b6aeb0 | 3129 | else if (event == 0 && docked) |
962ce8ca | 3130 | data = 3; /* dock */ |
56b6aeb0 HMH |
3131 | else { |
3132 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
3133 | event, _sta(dock_handle)); | |
962ce8ca | 3134 | data = 0; /* unknown */ |
56b6aeb0 | 3135 | } |
14e04fb3 | 3136 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3137 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3138 | ibm->acpi->device->dev.bus_id, | |
3139 | event, data); | |
56b6aeb0 HMH |
3140 | } |
3141 | ||
78f81cc4 | 3142 | static int dock_read(char *p) |
1da177e4 LT |
3143 | { |
3144 | int len = 0; | |
3145 | int docked = dock_docked(); | |
3146 | ||
3147 | if (!dock_handle) | |
3148 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3149 | else if (!docked) | |
3150 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3151 | else { | |
3152 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3153 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3154 | } | |
3155 | ||
3156 | return len; | |
3157 | } | |
3158 | ||
78f81cc4 | 3159 | static int dock_write(char *buf) |
1da177e4 LT |
3160 | { |
3161 | char *cmd; | |
3162 | ||
3163 | if (!dock_docked()) | |
78f81cc4 | 3164 | return -ENODEV; |
1da177e4 LT |
3165 | |
3166 | while ((cmd = next_cmd(&buf))) { | |
3167 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3168 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3169 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3170 | return -EIO; |
3171 | } else if (strlencmp(cmd, "dock") == 0) { | |
3172 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3173 | return -EIO; | |
3174 | } else | |
3175 | return -EINVAL; | |
1da177e4 | 3176 | } |
56b6aeb0 HMH |
3177 | |
3178 | return 0; | |
1da177e4 | 3179 | } |
56b6aeb0 | 3180 | |
85998248 | 3181 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3182 | |
3183 | /************************************************************************* | |
3184 | * Bay subdriver | |
3185 | */ | |
1da177e4 | 3186 | |
85998248 | 3187 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3188 | |
56b6aeb0 HMH |
3189 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
3190 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
3191 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3192 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3193 | ); /* A21e, R30, R31 */ | |
3194 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
3195 | "_EJ0", /* all others */ | |
3196 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
3197 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
3198 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
3199 | ); /* all others */ | |
3200 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
3201 | "_EJ0", /* 770x */ | |
3202 | ); /* all others */ | |
3203 | ||
a5763f22 | 3204 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3205 | { |
fe08bc4b HMH |
3206 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3207 | ||
8d376cd6 | 3208 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 3209 | if (bay_handle) |
8d376cd6 HMH |
3210 | IBM_ACPIHANDLE_INIT(bay_ej); |
3211 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3212 | if (bay2_handle) |
8d376cd6 | 3213 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3214 | |
d8fd94d9 HMH |
3215 | tp_features.bay_status = bay_handle && |
3216 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3217 | tp_features.bay_status2 = bay2_handle && | |
3218 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3219 | |
d8fd94d9 HMH |
3220 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3221 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3222 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3223 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3224 | |
fe08bc4b HMH |
3225 | vdbg_printk(TPACPI_DBG_INIT, |
3226 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3227 | str_supported(tp_features.bay_status), |
3228 | str_supported(tp_features.bay_eject), | |
3229 | str_supported(tp_features.bay_status2), | |
3230 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3231 | |
d8fd94d9 HMH |
3232 | return (tp_features.bay_status || tp_features.bay_eject || |
3233 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3234 | } |
3235 | ||
56b6aeb0 HMH |
3236 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3237 | { | |
14e04fb3 | 3238 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3239 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3240 | ibm->acpi->device->dev.bus_id, | |
3241 | event, 0); | |
56b6aeb0 HMH |
3242 | } |
3243 | ||
78f81cc4 BD |
3244 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3245 | ||
3246 | static int bay_read(char *p) | |
1da177e4 LT |
3247 | { |
3248 | int len = 0; | |
78f81cc4 BD |
3249 | int occupied = bay_occupied(bay); |
3250 | int occupied2 = bay_occupied(bay2); | |
3251 | int eject, eject2; | |
3252 | ||
d8fd94d9 HMH |
3253 | len += sprintf(p + len, "status:\t\t%s\n", |
3254 | tp_features.bay_status ? | |
3255 | (occupied ? "occupied" : "unoccupied") : | |
3256 | "not supported"); | |
3257 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3258 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3259 | "occupied" : "unoccupied"); | |
3260 | ||
d8fd94d9 HMH |
3261 | eject = tp_features.bay_eject && occupied; |
3262 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3263 | |
3264 | if (eject && eject2) | |
3265 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3266 | else if (eject) | |
1da177e4 | 3267 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3268 | else if (eject2) |
3269 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3270 | |
3271 | return len; | |
3272 | } | |
3273 | ||
78f81cc4 | 3274 | static int bay_write(char *buf) |
1da177e4 LT |
3275 | { |
3276 | char *cmd; | |
3277 | ||
d8fd94d9 | 3278 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3279 | return -ENODEV; |
3280 | ||
1da177e4 | 3281 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3282 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3283 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3284 | return -EIO; | |
d8fd94d9 | 3285 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3286 | strlencmp(cmd, "eject2") == 0) { |
3287 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3288 | return -EIO; |
3289 | } else | |
3290 | return -EINVAL; | |
3291 | } | |
3292 | ||
3293 | return 0; | |
78f81cc4 | 3294 | } |
a5763f22 | 3295 | |
8d376cd6 HMH |
3296 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3297 | .notify = bay_notify, | |
3298 | .handle = &bay_handle, | |
3299 | .type = ACPI_SYSTEM_NOTIFY, | |
3300 | }; | |
3301 | ||
a5763f22 HMH |
3302 | static struct ibm_struct bay_driver_data = { |
3303 | .name = "bay", | |
3304 | .read = bay_read, | |
3305 | .write = bay_write, | |
8d376cd6 | 3306 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3307 | }; |
3308 | ||
85998248 | 3309 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3310 | |
56b6aeb0 HMH |
3311 | /************************************************************************* |
3312 | * CMOS subdriver | |
3313 | */ | |
3314 | ||
b616004c HMH |
3315 | /* sysfs cmos_command -------------------------------------------------- */ |
3316 | static ssize_t cmos_command_store(struct device *dev, | |
3317 | struct device_attribute *attr, | |
3318 | const char *buf, size_t count) | |
3319 | { | |
3320 | unsigned long cmos_cmd; | |
3321 | int res; | |
3322 | ||
3323 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3324 | return -EINVAL; | |
3325 | ||
3326 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3327 | return (res)? res : count; | |
3328 | } | |
3329 | ||
3330 | static struct device_attribute dev_attr_cmos_command = | |
3331 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3332 | ||
3333 | /* --------------------------------------------------------------------- */ | |
3334 | ||
a5763f22 | 3335 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3336 | { |
b616004c HMH |
3337 | int res; |
3338 | ||
fe08bc4b HMH |
3339 | vdbg_printk(TPACPI_DBG_INIT, |
3340 | "initializing cmos commands subdriver\n"); | |
3341 | ||
8d376cd6 | 3342 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 3343 | |
fe08bc4b HMH |
3344 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3345 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3346 | |
3347 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3348 | if (res) | |
3349 | return res; | |
3350 | ||
5fba344c HMH |
3351 | return (cmos_handle)? 0 : 1; |
3352 | } | |
3353 | ||
b616004c HMH |
3354 | static void cmos_exit(void) |
3355 | { | |
3356 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3357 | } | |
3358 | ||
78f81cc4 | 3359 | static int cmos_read(char *p) |
1da177e4 LT |
3360 | { |
3361 | int len = 0; | |
3362 | ||
78f81cc4 BD |
3363 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3364 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3365 | if (!cmos_handle) |
3366 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3367 | else { | |
3368 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3369 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3370 | } |
3371 | ||
3372 | return len; | |
3373 | } | |
3374 | ||
78f81cc4 | 3375 | static int cmos_write(char *buf) |
1da177e4 LT |
3376 | { |
3377 | char *cmd; | |
c9bea99c | 3378 | int cmos_cmd, res; |
1da177e4 LT |
3379 | |
3380 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3381 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3382 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3383 | /* cmos_cmd set */ |
3384 | } else | |
3385 | return -EINVAL; | |
3386 | ||
c9bea99c HMH |
3387 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3388 | if (res) | |
3389 | return res; | |
1da177e4 LT |
3390 | } |
3391 | ||
3392 | return 0; | |
78f81cc4 BD |
3393 | } |
3394 | ||
a5763f22 HMH |
3395 | static struct ibm_struct cmos_driver_data = { |
3396 | .name = "cmos", | |
3397 | .read = cmos_read, | |
3398 | .write = cmos_write, | |
b616004c | 3399 | .exit = cmos_exit, |
a5763f22 | 3400 | }; |
56b6aeb0 HMH |
3401 | |
3402 | /************************************************************************* | |
3403 | * LED subdriver | |
3404 | */ | |
3405 | ||
f74a27d4 HMH |
3406 | enum led_access_mode { |
3407 | TPACPI_LED_NONE = 0, | |
3408 | TPACPI_LED_570, /* 570 */ | |
3409 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3410 | TPACPI_LED_NEW, /* all others */ | |
3411 | }; | |
3412 | ||
3413 | enum { /* For TPACPI_LED_OLD */ | |
3414 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3415 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3416 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3417 | }; | |
3418 | ||
9a8e1738 | 3419 | static enum led_access_mode led_supported; |
78f81cc4 | 3420 | |
56b6aeb0 HMH |
3421 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
3422 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3423 | "LED", /* all others */ | |
3424 | ); /* R30, R31 */ | |
3425 | ||
a5763f22 | 3426 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3427 | { |
fe08bc4b HMH |
3428 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3429 | ||
8d376cd6 | 3430 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 3431 | |
78f81cc4 BD |
3432 | if (!led_handle) |
3433 | /* led not supported on R30, R31 */ | |
efa27145 | 3434 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3435 | else if (strlencmp(led_path, "SLED") == 0) |
3436 | /* 570 */ | |
efa27145 | 3437 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3438 | else if (strlencmp(led_path, "SYSL") == 0) |
3439 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3440 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3441 | else |
3442 | /* all others */ | |
efa27145 | 3443 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3444 | |
fe08bc4b HMH |
3445 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3446 | str_supported(led_supported), led_supported); | |
3447 | ||
5fba344c | 3448 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3449 | } |
3450 | ||
3451 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3452 | ||
3453 | static int led_read(char *p) | |
1da177e4 LT |
3454 | { |
3455 | int len = 0; | |
3456 | ||
78f81cc4 BD |
3457 | if (!led_supported) { |
3458 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3459 | return len; | |
3460 | } | |
3461 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3462 | ||
efa27145 | 3463 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3464 | /* 570 */ |
3465 | int i, status; | |
3466 | for (i = 0; i < 8; i++) { | |
3467 | if (!acpi_evalf(ec_handle, | |
3468 | &status, "GLED", "dd", 1 << i)) | |
3469 | return -EIO; | |
3470 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3471 | i, led_status(status)); | |
3472 | } | |
3473 | } | |
3474 | ||
1da177e4 | 3475 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3476 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3477 | |
3478 | return len; | |
3479 | } | |
3480 | ||
78f81cc4 BD |
3481 | /* off, on, blink */ |
3482 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3483 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3484 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3485 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3486 | ||
78f81cc4 | 3487 | static int led_write(char *buf) |
1da177e4 LT |
3488 | { |
3489 | char *cmd; | |
78f81cc4 BD |
3490 | int led, ind, ret; |
3491 | ||
3492 | if (!led_supported) | |
3493 | return -ENODEV; | |
1da177e4 LT |
3494 | |
3495 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3496 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3497 | return -EINVAL; |
3498 | ||
78f81cc4 BD |
3499 | if (strstr(cmd, "off")) { |
3500 | ind = 0; | |
1da177e4 | 3501 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3502 | ind = 1; |
3503 | } else if (strstr(cmd, "blink")) { | |
3504 | ind = 2; | |
1da177e4 LT |
3505 | } else |
3506 | return -EINVAL; | |
78f81cc4 | 3507 | |
efa27145 | 3508 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3509 | /* 570 */ |
3510 | led = 1 << led; | |
1da177e4 | 3511 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3512 | led, led_sled_arg1[ind])) |
1da177e4 | 3513 | return -EIO; |
efa27145 | 3514 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3515 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3516 | led = 1 << led; | |
efa27145 | 3517 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
3518 | if (ret >= 0) |
3519 | ret = | |
efa27145 | 3520 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 3521 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
3522 | if (ret >= 0) |
3523 | ret = | |
efa27145 | 3524 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 3525 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
3526 | if (ret < 0) |
3527 | return ret; | |
3528 | } else { | |
3529 | /* all others */ | |
3530 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3531 | led, led_led_arg1[ind])) | |
1da177e4 | 3532 | return -EIO; |
78f81cc4 BD |
3533 | } |
3534 | } | |
3535 | ||
3536 | return 0; | |
3537 | } | |
3538 | ||
a5763f22 HMH |
3539 | static struct ibm_struct led_driver_data = { |
3540 | .name = "led", | |
3541 | .read = led_read, | |
3542 | .write = led_write, | |
3543 | }; | |
3544 | ||
56b6aeb0 HMH |
3545 | /************************************************************************* |
3546 | * Beep subdriver | |
3547 | */ | |
3548 | ||
3549 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
3550 | ||
a5763f22 | 3551 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3552 | { |
fe08bc4b HMH |
3553 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3554 | ||
8d376cd6 | 3555 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 3556 | |
fe08bc4b HMH |
3557 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3558 | str_supported(beep_handle != NULL)); | |
3559 | ||
5fba344c HMH |
3560 | return (beep_handle)? 0 : 1; |
3561 | } | |
3562 | ||
78f81cc4 BD |
3563 | static int beep_read(char *p) |
3564 | { | |
3565 | int len = 0; | |
3566 | ||
3567 | if (!beep_handle) | |
3568 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3569 | else { | |
3570 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3571 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3572 | } | |
3573 | ||
3574 | return len; | |
3575 | } | |
3576 | ||
3577 | static int beep_write(char *buf) | |
3578 | { | |
3579 | char *cmd; | |
3580 | int beep_cmd; | |
3581 | ||
3582 | if (!beep_handle) | |
3583 | return -ENODEV; | |
3584 | ||
3585 | while ((cmd = next_cmd(&buf))) { | |
3586 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3587 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3588 | /* beep_cmd set */ | |
3589 | } else | |
3590 | return -EINVAL; | |
3591 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3592 | return -EIO; | |
3593 | } | |
3594 | ||
3595 | return 0; | |
3596 | } | |
3597 | ||
a5763f22 HMH |
3598 | static struct ibm_struct beep_driver_data = { |
3599 | .name = "beep", | |
3600 | .read = beep_read, | |
3601 | .write = beep_write, | |
3602 | }; | |
3603 | ||
56b6aeb0 HMH |
3604 | /************************************************************************* |
3605 | * Thermal subdriver | |
3606 | */ | |
78f81cc4 | 3607 | |
f74a27d4 HMH |
3608 | enum thermal_access_mode { |
3609 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3610 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3611 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3612 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3613 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3614 | }; | |
3615 | ||
3616 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3617 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3618 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3619 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3620 | }; | |
3621 | ||
3622 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3623 | struct ibm_thermal_sensors_struct { | |
3624 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3625 | }; | |
3626 | ||
a26f878a | 3627 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3628 | |
b21a15f6 HMH |
3629 | /* idx is zero-based */ |
3630 | static int thermal_get_sensor(int idx, s32 *value) | |
3631 | { | |
3632 | int t; | |
3633 | s8 tmp; | |
3634 | char tmpi[5]; | |
3635 | ||
3636 | t = TP_EC_THERMAL_TMP0; | |
3637 | ||
3638 | switch (thermal_read_mode) { | |
3639 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3640 | case TPACPI_THERMAL_TPEC_16: | |
3641 | if (idx >= 8 && idx <= 15) { | |
3642 | t = TP_EC_THERMAL_TMP8; | |
3643 | idx -= 8; | |
3644 | } | |
3645 | /* fallthrough */ | |
3646 | #endif | |
3647 | case TPACPI_THERMAL_TPEC_8: | |
3648 | if (idx <= 7) { | |
3649 | if (!acpi_ec_read(t + idx, &tmp)) | |
3650 | return -EIO; | |
3651 | *value = tmp * 1000; | |
3652 | return 0; | |
3653 | } | |
3654 | break; | |
3655 | ||
3656 | case TPACPI_THERMAL_ACPI_UPDT: | |
3657 | if (idx <= 7) { | |
3658 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3659 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3660 | return -EIO; | |
3661 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3662 | return -EIO; | |
3663 | *value = (t - 2732) * 100; | |
3664 | return 0; | |
3665 | } | |
3666 | break; | |
3667 | ||
3668 | case TPACPI_THERMAL_ACPI_TMP07: | |
3669 | if (idx <= 7) { | |
3670 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3671 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3672 | return -EIO; | |
3673 | if (t > 127 || t < -127) | |
3674 | t = TP_EC_THERMAL_TMP_NA; | |
3675 | *value = t * 1000; | |
3676 | return 0; | |
3677 | } | |
3678 | break; | |
3679 | ||
3680 | case TPACPI_THERMAL_NONE: | |
3681 | default: | |
3682 | return -ENOSYS; | |
3683 | } | |
3684 | ||
3685 | return -EINVAL; | |
3686 | } | |
3687 | ||
3688 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3689 | { | |
3690 | int res, i; | |
3691 | int n; | |
3692 | ||
3693 | n = 8; | |
3694 | i = 0; | |
3695 | ||
3696 | if (!s) | |
3697 | return -EINVAL; | |
3698 | ||
3699 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3700 | n = 16; | |
3701 | ||
3702 | for(i = 0 ; i < n; i++) { | |
3703 | res = thermal_get_sensor(i, &s->temp[i]); | |
3704 | if (res) | |
3705 | return res; | |
3706 | } | |
3707 | ||
3708 | return n; | |
3709 | } | |
f74a27d4 | 3710 | |
2c37aa4e HMH |
3711 | /* sysfs temp##_input -------------------------------------------------- */ |
3712 | ||
3713 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3714 | struct device_attribute *attr, | |
3715 | char *buf) | |
3716 | { | |
3717 | struct sensor_device_attribute *sensor_attr = | |
3718 | to_sensor_dev_attr(attr); | |
3719 | int idx = sensor_attr->index; | |
3720 | s32 value; | |
3721 | int res; | |
3722 | ||
3723 | res = thermal_get_sensor(idx, &value); | |
3724 | if (res) | |
3725 | return res; | |
3726 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3727 | return -ENXIO; | |
3728 | ||
3729 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3730 | } | |
3731 | ||
3732 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
3733 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
3734 | ||
3735 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3736 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3737 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3738 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3739 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3740 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3741 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3742 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3743 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3744 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3745 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3746 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3747 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3748 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3749 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3750 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3751 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3752 | }; | |
3753 | ||
3754 | #define THERMAL_ATTRS(X) \ | |
3755 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3756 | ||
3757 | static struct attribute *thermal_temp_input_attr[] = { | |
3758 | THERMAL_ATTRS(8), | |
3759 | THERMAL_ATTRS(9), | |
3760 | THERMAL_ATTRS(10), | |
3761 | THERMAL_ATTRS(11), | |
3762 | THERMAL_ATTRS(12), | |
3763 | THERMAL_ATTRS(13), | |
3764 | THERMAL_ATTRS(14), | |
3765 | THERMAL_ATTRS(15), | |
3766 | THERMAL_ATTRS(0), | |
3767 | THERMAL_ATTRS(1), | |
3768 | THERMAL_ATTRS(2), | |
3769 | THERMAL_ATTRS(3), | |
3770 | THERMAL_ATTRS(4), | |
3771 | THERMAL_ATTRS(5), | |
3772 | THERMAL_ATTRS(6), | |
3773 | THERMAL_ATTRS(7), | |
3774 | NULL | |
3775 | }; | |
3776 | ||
3777 | static const struct attribute_group thermal_temp_input16_group = { | |
3778 | .attrs = thermal_temp_input_attr | |
3779 | }; | |
3780 | ||
3781 | static const struct attribute_group thermal_temp_input8_group = { | |
3782 | .attrs = &thermal_temp_input_attr[8] | |
3783 | }; | |
3784 | ||
3785 | #undef THERMAL_SENSOR_ATTR_TEMP | |
3786 | #undef THERMAL_ATTRS | |
3787 | ||
3788 | /* --------------------------------------------------------------------- */ | |
3789 | ||
a5763f22 | 3790 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3791 | { |
60eb0b35 HMH |
3792 | u8 t, ta1, ta2; |
3793 | int i; | |
5fba344c | 3794 | int acpi_tmp7; |
2c37aa4e | 3795 | int res; |
5fba344c | 3796 | |
fe08bc4b HMH |
3797 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
3798 | ||
5fba344c | 3799 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 3800 | |
3d6f99ca | 3801 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
3802 | /* |
3803 | * Direct EC access mode: sensors at registers | |
3804 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
3805 | * non-implemented, thermal sensors return 0x80 when | |
3806 | * not available | |
3807 | */ | |
78f81cc4 | 3808 | |
60eb0b35 HMH |
3809 | ta1 = ta2 = 0; |
3810 | for (i = 0; i < 8; i++) { | |
04cc862c | 3811 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
3812 | ta1 |= t; |
3813 | } else { | |
3814 | ta1 = 0; | |
3815 | break; | |
3816 | } | |
04cc862c | 3817 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
3818 | ta2 |= t; |
3819 | } else { | |
3820 | ta1 = 0; | |
3821 | break; | |
3822 | } | |
3823 | } | |
3824 | if (ta1 == 0) { | |
3825 | /* This is sheer paranoia, but we handle it anyway */ | |
3826 | if (acpi_tmp7) { | |
3827 | printk(IBM_ERR | |
3828 | "ThinkPad ACPI EC access misbehaving, " | |
3829 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 3830 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
3831 | } else { |
3832 | printk(IBM_ERR | |
3833 | "ThinkPad ACPI EC access misbehaving, " | |
3834 | "disabling thermal sensors access\n"); | |
efa27145 | 3835 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
3836 | } |
3837 | } else { | |
3838 | thermal_read_mode = | |
3839 | (ta2 != 0) ? | |
efa27145 | 3840 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
3841 | } |
3842 | } else if (acpi_tmp7) { | |
a26f878a HMH |
3843 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
3844 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3845 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
3846 | } else { |
3847 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 3848 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
3849 | } |
3850 | } else { | |
3851 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 3852 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 3853 | } |
78f81cc4 | 3854 | |
fe08bc4b HMH |
3855 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
3856 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
3857 | thermal_read_mode); | |
3858 | ||
2c37aa4e HMH |
3859 | switch(thermal_read_mode) { |
3860 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3861 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3862 | &thermal_temp_input16_group); |
3863 | if (res) | |
3864 | return res; | |
3865 | break; | |
3866 | case TPACPI_THERMAL_TPEC_8: | |
3867 | case TPACPI_THERMAL_ACPI_TMP07: | |
3868 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3869 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3870 | &thermal_temp_input8_group); |
3871 | if (res) | |
3872 | return res; | |
3873 | break; | |
3874 | case TPACPI_THERMAL_NONE: | |
3875 | default: | |
3876 | return 1; | |
3877 | } | |
3878 | ||
3879 | return 0; | |
3880 | } | |
3881 | ||
3882 | static void thermal_exit(void) | |
3883 | { | |
3884 | switch(thermal_read_mode) { | |
3885 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3886 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3887 | &thermal_temp_input16_group); |
3888 | break; | |
3889 | case TPACPI_THERMAL_TPEC_8: | |
3890 | case TPACPI_THERMAL_ACPI_TMP07: | |
3891 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3892 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3893 | &thermal_temp_input16_group); |
3894 | break; | |
3895 | case TPACPI_THERMAL_NONE: | |
3896 | default: | |
3897 | break; | |
3898 | } | |
78f81cc4 BD |
3899 | } |
3900 | ||
a26f878a HMH |
3901 | static int thermal_read(char *p) |
3902 | { | |
3903 | int len = 0; | |
3904 | int n, i; | |
3905 | struct ibm_thermal_sensors_struct t; | |
3906 | ||
3907 | n = thermal_get_sensors(&t); | |
3908 | if (unlikely(n < 0)) | |
3909 | return n; | |
3910 | ||
3911 | len += sprintf(p + len, "temperatures:\t"); | |
3912 | ||
3913 | if (n > 0) { | |
3914 | for (i = 0; i < (n - 1); i++) | |
3915 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
3916 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
3917 | } else | |
3918 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
3919 | |
3920 | return len; | |
3921 | } | |
3922 | ||
a5763f22 HMH |
3923 | static struct ibm_struct thermal_driver_data = { |
3924 | .name = "thermal", | |
3925 | .read = thermal_read, | |
2c37aa4e | 3926 | .exit = thermal_exit, |
a5763f22 HMH |
3927 | }; |
3928 | ||
56b6aeb0 HMH |
3929 | /************************************************************************* |
3930 | * EC Dump subdriver | |
3931 | */ | |
3932 | ||
78f81cc4 BD |
3933 | static u8 ecdump_regs[256]; |
3934 | ||
3935 | static int ecdump_read(char *p) | |
3936 | { | |
3937 | int len = 0; | |
3938 | int i, j; | |
3939 | u8 v; | |
3940 | ||
3941 | len += sprintf(p + len, "EC " | |
3942 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3943 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3944 | for (i = 0; i < 256; i += 16) { | |
3945 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3946 | for (j = 0; j < 16; j++) { | |
3947 | if (!acpi_ec_read(i + j, &v)) | |
3948 | break; | |
3949 | if (v != ecdump_regs[i + j]) | |
3950 | len += sprintf(p + len, " *%02x", v); | |
3951 | else | |
3952 | len += sprintf(p + len, " %02x", v); | |
3953 | ecdump_regs[i + j] = v; | |
3954 | } | |
3955 | len += sprintf(p + len, "\n"); | |
3956 | if (j != 16) | |
3957 | break; | |
3958 | } | |
3959 | ||
3960 | /* These are way too dangerous to advertise openly... */ | |
3961 | #if 0 | |
3962 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3963 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3964 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3965 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3966 | #endif | |
3967 | return len; | |
3968 | } | |
3969 | ||
3970 | static int ecdump_write(char *buf) | |
3971 | { | |
3972 | char *cmd; | |
3973 | int i, v; | |
3974 | ||
3975 | while ((cmd = next_cmd(&buf))) { | |
3976 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3977 | /* i and v set */ | |
3978 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3979 | /* i and v set */ | |
3980 | } else | |
3981 | return -EINVAL; | |
3982 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3983 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3984 | return -EIO; |
3985 | } else | |
3986 | return -EINVAL; | |
3987 | } | |
3988 | ||
3989 | return 0; | |
78f81cc4 BD |
3990 | } |
3991 | ||
a5763f22 HMH |
3992 | static struct ibm_struct ecdump_driver_data = { |
3993 | .name = "ecdump", | |
3994 | .read = ecdump_read, | |
3995 | .write = ecdump_write, | |
92641177 | 3996 | .flags.experimental = 1, |
a5763f22 HMH |
3997 | }; |
3998 | ||
56b6aeb0 HMH |
3999 | /************************************************************************* |
4000 | * Backlight/brightness subdriver | |
4001 | */ | |
4002 | ||
f74a27d4 HMH |
4003 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4004 | ||
94954cc6 | 4005 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
4006 | static int brightness_offset = 0x31; |
4007 | static int brightness_mode; | |
4008 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
4009 | ||
b21a15f6 | 4010 | static struct mutex brightness_mutex; |
56b6aeb0 | 4011 | |
b21a15f6 HMH |
4012 | /* |
4013 | * ThinkPads can read brightness from two places: EC 0x31, or | |
4014 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
4015 | */ | |
4016 | static int brightness_get(struct backlight_device *bd) | |
4017 | { | |
4018 | u8 lec = 0, lcmos = 0, level = 0; | |
4019 | ||
4020 | if (brightness_mode & 1) { | |
4021 | if (!acpi_ec_read(brightness_offset, &lec)) | |
4022 | return -EIO; | |
4023 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4024 | level = lec; | |
4025 | }; | |
4026 | if (brightness_mode & 2) { | |
4027 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
4028 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
4029 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
4030 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
4031 | level = lcmos; | |
4032 | } | |
4033 | ||
4034 | if (brightness_mode == 3 && lec != lcmos) { | |
4035 | printk(IBM_ERR | |
4036 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
4037 | "on display brightness level\n", | |
4038 | (unsigned int) lcmos, | |
4039 | (unsigned int) lec); | |
4040 | return -EIO; | |
4041 | } | |
4042 | ||
4043 | return level; | |
4044 | } | |
4045 | ||
4046 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
4047 | static int brightness_set(int value) | |
4048 | { | |
4049 | int cmos_cmd, inc, i, res; | |
4050 | int current_value; | |
4051 | ||
4052 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
4053 | return -EINVAL; | |
4054 | ||
4055 | res = mutex_lock_interruptible(&brightness_mutex); | |
4056 | if (res < 0) | |
4057 | return res; | |
4058 | ||
4059 | current_value = brightness_get(NULL); | |
4060 | if (current_value < 0) { | |
4061 | res = current_value; | |
4062 | goto errout; | |
4063 | } | |
4064 | ||
4065 | cmos_cmd = value > current_value ? | |
4066 | TP_CMOS_BRIGHTNESS_UP : | |
4067 | TP_CMOS_BRIGHTNESS_DOWN; | |
4068 | inc = (value > current_value)? 1 : -1; | |
4069 | ||
4070 | res = 0; | |
4071 | for (i = current_value; i != value; i += inc) { | |
4072 | if ((brightness_mode & 2) && | |
4073 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
4074 | res = -EIO; | |
4075 | goto errout; | |
4076 | } | |
4077 | if ((brightness_mode & 1) && | |
4078 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4079 | res = -EIO; | |
4080 | goto errout;; | |
4081 | } | |
4082 | } | |
4083 | ||
4084 | errout: | |
4085 | mutex_unlock(&brightness_mutex); | |
4086 | return res; | |
4087 | } | |
4088 | ||
4089 | /* sysfs backlight class ----------------------------------------------- */ | |
4090 | ||
4091 | static int brightness_update_status(struct backlight_device *bd) | |
4092 | { | |
4093 | /* it is the backlight class's job (caller) to handle | |
4094 | * EINTR and other errors properly */ | |
4095 | return brightness_set( | |
4096 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4097 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4098 | bd->props.brightness : 0); | |
4099 | } | |
4100 | ||
4101 | static struct backlight_ops ibm_backlight_data = { | |
4102 | .get_brightness = brightness_get, | |
56b6aeb0 HMH |
4103 | .update_status = brightness_update_status, |
4104 | }; | |
4105 | ||
b21a15f6 | 4106 | /* --------------------------------------------------------------------- */ |
f432255e | 4107 | |
a3f104c0 HMH |
4108 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4109 | { | |
4110 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4111 | union acpi_object *obj; | |
4112 | int rc; | |
4113 | ||
4114 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4115 | obj = (union acpi_object *)buffer.pointer; | |
4116 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
4117 | printk(IBM_ERR "Unknown BCLL data, " | |
4118 | "please report this to %s\n", IBM_MAIL); | |
4119 | rc = 0; | |
4120 | } else { | |
4121 | rc = obj->package.count; | |
4122 | } | |
4123 | } else { | |
4124 | return 0; | |
4125 | } | |
4126 | ||
4127 | kfree(buffer.pointer); | |
4128 | return rc; | |
4129 | } | |
4130 | ||
4131 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4132 | void *context, void **rv) | |
4133 | { | |
4134 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4135 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4136 | ||
4137 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4138 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4139 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4140 | *rv = handle; | |
4141 | return AE_CTRL_TERMINATE; | |
4142 | } else { | |
4143 | return AE_OK; | |
4144 | } | |
4145 | } else { | |
4146 | return AE_OK; | |
4147 | } | |
4148 | } | |
4149 | ||
4150 | static int __init brightness_check_levels(void) | |
4151 | { | |
4152 | int status; | |
4153 | void *found_node = NULL; | |
4154 | ||
4155 | if (!vid_handle) { | |
4156 | IBM_ACPIHANDLE_INIT(vid); | |
4157 | } | |
4158 | if (!vid_handle) | |
4159 | return 0; | |
4160 | ||
4161 | /* Search for a BCLL package with 16 levels */ | |
4162 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
4163 | brightness_find_bcll, NULL, &found_node); | |
4164 | ||
4165 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4166 | } | |
4167 | ||
e11e211a HMH |
4168 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4169 | void *context, void **rv) | |
4170 | { | |
4171 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4172 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4173 | ||
4174 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4175 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4176 | *rv = handle; | |
4177 | return AE_CTRL_TERMINATE; | |
4178 | } else { | |
4179 | return AE_OK; | |
4180 | } | |
4181 | } | |
4182 | ||
4183 | static int __init brightness_check_std_acpi_support(void) | |
4184 | { | |
4185 | int status; | |
4186 | void *found_node = NULL; | |
4187 | ||
4188 | if (!vid_handle) { | |
4189 | IBM_ACPIHANDLE_INIT(vid); | |
4190 | } | |
4191 | if (!vid_handle) | |
4192 | return 0; | |
4193 | ||
4194 | /* Search for a _BCL method, but don't execute it */ | |
4195 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
4196 | brightness_find_bcl, NULL, &found_node); | |
4197 | ||
4198 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4199 | } | |
4200 | ||
a5763f22 | 4201 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4202 | { |
4203 | int b; | |
4204 | ||
fe08bc4b HMH |
4205 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4206 | ||
f432255e HMH |
4207 | mutex_init(&brightness_mutex); |
4208 | ||
87cc537a HMH |
4209 | if (!brightness_enable) { |
4210 | dbg_printk(TPACPI_DBG_INIT, | |
4211 | "brightness support disabled by module parameter\n"); | |
4212 | return 1; | |
e11e211a HMH |
4213 | } else if (brightness_enable > 1) { |
4214 | if (brightness_check_std_acpi_support()) { | |
4215 | printk(IBM_NOTICE | |
4216 | "standard ACPI backlight interface available, not loading native one...\n"); | |
4217 | return 1; | |
4218 | } | |
87cc537a HMH |
4219 | } |
4220 | ||
24d3b774 HMH |
4221 | if (!brightness_mode) { |
4222 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4223 | brightness_mode = 2; | |
4224 | else | |
4225 | brightness_mode = 3; | |
4226 | ||
4227 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4228 | brightness_mode); | |
4229 | } | |
4230 | ||
4231 | if (brightness_mode > 3) | |
4232 | return -EINVAL; | |
4233 | ||
a3f104c0 HMH |
4234 | tp_features.bright_16levels = |
4235 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4236 | brightness_check_levels(); | |
4237 | ||
56b6aeb0 HMH |
4238 | b = brightness_get(NULL); |
4239 | if (b < 0) | |
24d3b774 | 4240 | return 1; |
56b6aeb0 | 4241 | |
a3f104c0 HMH |
4242 | if (tp_features.bright_16levels) |
4243 | printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n"); | |
4244 | ||
7d5a015e HMH |
4245 | ibm_backlight_device = backlight_device_register( |
4246 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4247 | &ibm_backlight_data); | |
56b6aeb0 HMH |
4248 | if (IS_ERR(ibm_backlight_device)) { |
4249 | printk(IBM_ERR "Could not register backlight device\n"); | |
4250 | return PTR_ERR(ibm_backlight_device); | |
4251 | } | |
fe08bc4b | 4252 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4253 | |
a3f104c0 HMH |
4254 | ibm_backlight_device->props.max_brightness = |
4255 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4256 | ibm_backlight_device->props.brightness = b; |
4257 | backlight_update_status(ibm_backlight_device); | |
4258 | ||
4259 | return 0; | |
4260 | } | |
4261 | ||
4262 | static void brightness_exit(void) | |
4263 | { | |
4264 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4265 | vdbg_printk(TPACPI_DBG_EXIT, |
4266 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4267 | backlight_device_unregister(ibm_backlight_device); |
4268 | ibm_backlight_device = NULL; | |
4269 | } | |
4270 | } | |
4271 | ||
56b6aeb0 HMH |
4272 | static int brightness_read(char *p) |
4273 | { | |
4274 | int len = 0; | |
4275 | int level; | |
4276 | ||
4277 | if ((level = brightness_get(NULL)) < 0) { | |
4278 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4279 | } else { | |
a3f104c0 | 4280 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4281 | len += sprintf(p + len, "commands:\tup, down\n"); |
4282 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4283 | " (<level> is 0-%d)\n", |
4284 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4285 | } |
4286 | ||
4287 | return len; | |
4288 | } | |
4289 | ||
8acb0250 HM |
4290 | static int brightness_write(char *buf) |
4291 | { | |
4292 | int level; | |
4273af8d | 4293 | int rc; |
1da177e4 | 4294 | char *cmd; |
a3f104c0 | 4295 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4296 | |
4273af8d HMH |
4297 | level = brightness_get(NULL); |
4298 | if (level < 0) | |
4299 | return level; | |
78f81cc4 | 4300 | |
4273af8d | 4301 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4302 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4303 | if (level < max_level) |
4304 | level++; | |
78f81cc4 | 4305 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4306 | if (level > 0) |
4307 | level--; | |
4308 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4309 | level >= 0 && level <= max_level) { | |
4310 | /* new level set */ | |
78f81cc4 BD |
4311 | } else |
4312 | return -EINVAL; | |
78f81cc4 BD |
4313 | } |
4314 | ||
4273af8d HMH |
4315 | /* |
4316 | * Now we know what the final level should be, so we try to set it. | |
4317 | * Doing it this way makes the syscall restartable in case of EINTR | |
4318 | */ | |
4319 | rc = brightness_set(level); | |
4320 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4321 | } |
4322 | ||
a5763f22 HMH |
4323 | static struct ibm_struct brightness_driver_data = { |
4324 | .name = "brightness", | |
4325 | .read = brightness_read, | |
4326 | .write = brightness_write, | |
4327 | .exit = brightness_exit, | |
4328 | }; | |
4329 | ||
56b6aeb0 HMH |
4330 | /************************************************************************* |
4331 | * Volume subdriver | |
4332 | */ | |
fb87a811 | 4333 | |
f74a27d4 HMH |
4334 | static int volume_offset = 0x30; |
4335 | ||
78f81cc4 BD |
4336 | static int volume_read(char *p) |
4337 | { | |
4338 | int len = 0; | |
4339 | u8 level; | |
4340 | ||
4341 | if (!acpi_ec_read(volume_offset, &level)) { | |
4342 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4343 | } else { | |
4344 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4345 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4346 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4347 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4348 | " (<level> is 0-15)\n"); | |
4349 | } | |
4350 | ||
4351 | return len; | |
4352 | } | |
4353 | ||
78f81cc4 BD |
4354 | static int volume_write(char *buf) |
4355 | { | |
4356 | int cmos_cmd, inc, i; | |
4357 | u8 level, mute; | |
4358 | int new_level, new_mute; | |
4359 | char *cmd; | |
4360 | ||
4361 | while ((cmd = next_cmd(&buf))) { | |
4362 | if (!acpi_ec_read(volume_offset, &level)) | |
4363 | return -EIO; | |
4364 | new_mute = mute = level & 0x40; | |
4365 | new_level = level = level & 0xf; | |
4366 | ||
4367 | if (strlencmp(cmd, "up") == 0) { | |
4368 | if (mute) | |
4369 | new_mute = 0; | |
4370 | else | |
4371 | new_level = level == 15 ? 15 : level + 1; | |
4372 | } else if (strlencmp(cmd, "down") == 0) { | |
4373 | if (mute) | |
4374 | new_mute = 0; | |
4375 | else | |
4376 | new_level = level == 0 ? 0 : level - 1; | |
4377 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4378 | new_level >= 0 && new_level <= 15) { | |
4379 | /* new_level set */ | |
4380 | } else if (strlencmp(cmd, "mute") == 0) { | |
4381 | new_mute = 0x40; | |
1da177e4 LT |
4382 | } else |
4383 | return -EINVAL; | |
4384 | ||
78f81cc4 | 4385 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 4386 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
4387 | inc = new_level > level ? 1 : -1; |
4388 | ||
c9bea99c | 4389 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4390 | !acpi_ec_write(volume_offset, level))) |
4391 | return -EIO; | |
4392 | ||
4393 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4394 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4395 | !acpi_ec_write(volume_offset, i + inc)) |
4396 | return -EIO; | |
4397 | ||
c9bea99c | 4398 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
4399 | !acpi_ec_write(volume_offset, |
4400 | new_level + mute))) | |
4401 | return -EIO; | |
4402 | } | |
4403 | ||
4404 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 4405 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 4406 | |
c9bea99c | 4407 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4408 | !acpi_ec_write(volume_offset, level + new_mute)) |
4409 | return -EIO; | |
4410 | } | |
4411 | } | |
4412 | ||
4413 | return 0; | |
4414 | } | |
4415 | ||
a5763f22 HMH |
4416 | static struct ibm_struct volume_driver_data = { |
4417 | .name = "volume", | |
4418 | .read = volume_read, | |
4419 | .write = volume_write, | |
4420 | }; | |
56b6aeb0 HMH |
4421 | |
4422 | /************************************************************************* | |
4423 | * Fan subdriver | |
4424 | */ | |
4425 | ||
4426 | /* | |
4427 | * FAN ACCESS MODES | |
4428 | * | |
efa27145 | 4429 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4430 | * ACPI GFAN method: returns fan level |
4431 | * | |
efa27145 | 4432 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4433 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4434 | * |
efa27145 | 4435 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4436 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4437 | * | |
f51d1a39 HMH |
4438 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4439 | * it for writing. | |
56b6aeb0 | 4440 | * |
efa27145 | 4441 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4442 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4443 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4444 | * |
4445 | * Fan speed changes of any sort (including those caused by the | |
4446 | * disengaged mode) are usually done slowly by the firmware as the | |
4447 | * maximum ammount of fan duty cycle change per second seems to be | |
4448 | * limited. | |
4449 | * | |
4450 | * Reading is not available if GFAN exists. | |
4451 | * Writing is not available if SFAN exists. | |
4452 | * | |
4453 | * Bits | |
4454 | * 7 automatic mode engaged; | |
4455 | * (default operation mode of the ThinkPad) | |
4456 | * fan level is ignored in this mode. | |
f51d1a39 | 4457 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4458 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4459 | * the tachometer while the fan controller ramps up |
4460 | * the speed (which can take up to a few *minutes*). | |
4461 | * Speeds up fan to 100% duty-cycle, which is far above | |
4462 | * the standard RPM levels. It is not impossible that | |
4463 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4464 | * 5-3 unused in some models. Extra bits for fan level |
4465 | * in others, but still useless as all values above | |
4466 | * 7 map to the same speed as level 7 in these models. | |
4467 | * 2-0 fan level (0..7 usually) | |
4468 | * 0x00 = stop | |
4469 | * 0x07 = max (set when temperatures critical) | |
4470 | * Some ThinkPads may have other levels, see | |
efa27145 | 4471 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4472 | * |
4473 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4474 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4475 | * does so, its initial value is meaningless (0x07). | |
4476 | * | |
4477 | * For firmware bugs, refer to: | |
4478 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4479 | * | |
4480 | * ---- | |
4481 | * | |
4482 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4483 | * Main fan tachometer reading (in RPM) | |
4484 | * | |
4485 | * This register is present on all ThinkPads with a new-style EC, and | |
4486 | * it is known not to be present on the A21m/e, and T22, as there is | |
4487 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4488 | * ThinkPads from this same time period (and earlier) probably lack the | |
4489 | * tachometer as well. | |
4490 | * | |
4491 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4492 | * was never fixed by IBM to report the EC firmware version string | |
4493 | * probably support the tachometer (like the early X models), so | |
4494 | * detecting it is quite hard. We need more data to know for sure. | |
4495 | * | |
4496 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4497 | * might result. | |
4498 | * | |
f51d1a39 HMH |
4499 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4500 | * mode. | |
56b6aeb0 HMH |
4501 | * |
4502 | * For firmware bugs, refer to: | |
4503 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4504 | * | |
efa27145 | 4505 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4506 | * ThinkPad X31, X40, X41. Not available in the X60. |
4507 | * | |
4508 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4509 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4510 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4511 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4512 | * | |
4513 | * The speeds are stored on handles | |
4514 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4515 | * | |
4516 | * There are three default speed sets, acessible as handles: | |
4517 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4518 | * | |
4519 | * ACPI DSDT switches which set is in use depending on various | |
4520 | * factors. | |
4521 | * | |
efa27145 | 4522 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4523 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4524 | * but the ACPI tables just mention level 7. | |
4525 | */ | |
4526 | ||
f74a27d4 HMH |
4527 | enum { /* Fan control constants */ |
4528 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4529 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4530 | * 0x84 must be read before 0x85 */ | |
4531 | ||
4532 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4533 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4534 | ||
4535 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4536 | }; | |
4537 | ||
4538 | enum fan_status_access_mode { | |
4539 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4540 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4541 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4542 | }; | |
4543 | ||
4544 | enum fan_control_access_mode { | |
4545 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4546 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4547 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4548 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4549 | }; | |
4550 | ||
4551 | enum fan_control_commands { | |
4552 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4553 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4554 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4555 | * and also watchdog cmd */ | |
4556 | }; | |
4557 | ||
4558 | static int fan_control_allowed; | |
4559 | ||
69ba91cb HMH |
4560 | static enum fan_status_access_mode fan_status_access_mode; |
4561 | static enum fan_control_access_mode fan_control_access_mode; | |
4562 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4563 | |
778b4d74 | 4564 | static u8 fan_control_initial_status; |
fe98a52c | 4565 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4566 | static int fan_watchdog_maxinterval; |
4567 | ||
4568 | static struct mutex fan_mutex; | |
778b4d74 | 4569 | |
25c68a33 | 4570 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4571 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4572 | |
56b6aeb0 HMH |
4573 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4574 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
4575 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
4576 | ); /* all others */ | |
4577 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
4578 | "JFNS", /* 770x-JL */ | |
4579 | ); /* all others */ | |
4580 | ||
fe98a52c | 4581 | /* |
b21a15f6 | 4582 | * Call with fan_mutex held |
fe98a52c | 4583 | */ |
b21a15f6 | 4584 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4585 | { |
b21a15f6 HMH |
4586 | if ((status & |
4587 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4588 | if (status > 7) | |
4589 | fan_control_desired_level = 7; | |
4590 | else | |
4591 | fan_control_desired_level = status; | |
4592 | } | |
4593 | } | |
fe98a52c | 4594 | |
b21a15f6 HMH |
4595 | static int fan_get_status(u8 *status) |
4596 | { | |
4597 | u8 s; | |
fe98a52c | 4598 | |
b21a15f6 HMH |
4599 | /* TODO: |
4600 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4601 | |
b21a15f6 HMH |
4602 | switch (fan_status_access_mode) { |
4603 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4604 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4605 | |
b21a15f6 HMH |
4606 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4607 | return -EIO; | |
fe98a52c | 4608 | |
b21a15f6 HMH |
4609 | if (likely(status)) |
4610 | *status = s & 0x07; | |
fe98a52c | 4611 | |
b21a15f6 HMH |
4612 | break; |
4613 | ||
4614 | case TPACPI_FAN_RD_TPEC: | |
4615 | /* all except 570, 600e/x, 770e, 770x */ | |
4616 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4617 | return -EIO; | |
4618 | ||
4619 | if (likely(status)) | |
4620 | *status = s; | |
fe98a52c | 4621 | |
fe98a52c | 4622 | break; |
b21a15f6 | 4623 | |
fe98a52c | 4624 | default: |
b21a15f6 | 4625 | return -ENXIO; |
fe98a52c HMH |
4626 | } |
4627 | ||
b21a15f6 HMH |
4628 | return 0; |
4629 | } | |
fe98a52c | 4630 | |
b21a15f6 HMH |
4631 | static int fan_get_status_safe(u8 *status) |
4632 | { | |
4633 | int rc; | |
4634 | u8 s; | |
fe98a52c | 4635 | |
b21a15f6 HMH |
4636 | if (mutex_lock_interruptible(&fan_mutex)) |
4637 | return -ERESTARTSYS; | |
4638 | rc = fan_get_status(&s); | |
4639 | if (!rc) | |
4640 | fan_update_desired_level(s); | |
4641 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4642 | |
b21a15f6 HMH |
4643 | if (status) |
4644 | *status = s; | |
fe98a52c | 4645 | |
b21a15f6 HMH |
4646 | return rc; |
4647 | } | |
4648 | ||
4649 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4650 | { |
b21a15f6 | 4651 | u8 hi, lo; |
fe98a52c | 4652 | |
b21a15f6 HMH |
4653 | switch (fan_status_access_mode) { |
4654 | case TPACPI_FAN_RD_TPEC: | |
4655 | /* all except 570, 600e/x, 770e, 770x */ | |
4656 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4657 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4658 | return -EIO; | |
fe98a52c | 4659 | |
b21a15f6 HMH |
4660 | if (likely(speed)) |
4661 | *speed = (hi << 8) | lo; | |
fe98a52c | 4662 | |
b21a15f6 | 4663 | break; |
fe98a52c | 4664 | |
b21a15f6 HMH |
4665 | default: |
4666 | return -ENXIO; | |
4667 | } | |
fe98a52c | 4668 | |
b21a15f6 | 4669 | return 0; |
fe98a52c HMH |
4670 | } |
4671 | ||
b21a15f6 | 4672 | static int fan_set_level(int level) |
fe98a52c | 4673 | { |
b21a15f6 HMH |
4674 | if (!fan_control_allowed) |
4675 | return -EPERM; | |
fe98a52c | 4676 | |
b21a15f6 HMH |
4677 | switch (fan_control_access_mode) { |
4678 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4679 | if (level >= 0 && level <= 7) { | |
4680 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4681 | return -EIO; | |
4682 | } else | |
4683 | return -EINVAL; | |
4684 | break; | |
fe98a52c | 4685 | |
b21a15f6 HMH |
4686 | case TPACPI_FAN_WR_ACPI_FANS: |
4687 | case TPACPI_FAN_WR_TPEC: | |
4688 | if ((level != TP_EC_FAN_AUTO) && | |
4689 | (level != TP_EC_FAN_FULLSPEED) && | |
4690 | ((level < 0) || (level > 7))) | |
4691 | return -EINVAL; | |
fe98a52c | 4692 | |
b21a15f6 HMH |
4693 | /* safety net should the EC not support AUTO |
4694 | * or FULLSPEED mode bits and just ignore them */ | |
4695 | if (level & TP_EC_FAN_FULLSPEED) | |
4696 | level |= 7; /* safety min speed 7 */ | |
4697 | else if (level & TP_EC_FAN_FULLSPEED) | |
4698 | level |= 4; /* safety min speed 4 */ | |
fe98a52c | 4699 | |
b21a15f6 HMH |
4700 | if (!acpi_ec_write(fan_status_offset, level)) |
4701 | return -EIO; | |
4702 | else | |
4703 | tp_features.fan_ctrl_status_undef = 0; | |
4704 | break; | |
fe98a52c | 4705 | |
b21a15f6 HMH |
4706 | default: |
4707 | return -ENXIO; | |
4708 | } | |
4709 | return 0; | |
fe98a52c HMH |
4710 | } |
4711 | ||
b21a15f6 | 4712 | static int fan_set_level_safe(int level) |
fe98a52c | 4713 | { |
b21a15f6 | 4714 | int rc; |
fe98a52c | 4715 | |
b21a15f6 HMH |
4716 | if (!fan_control_allowed) |
4717 | return -EPERM; | |
fe98a52c | 4718 | |
b21a15f6 HMH |
4719 | if (mutex_lock_interruptible(&fan_mutex)) |
4720 | return -ERESTARTSYS; | |
fe98a52c | 4721 | |
b21a15f6 HMH |
4722 | if (level == TPACPI_FAN_LAST_LEVEL) |
4723 | level = fan_control_desired_level; | |
fe98a52c | 4724 | |
b21a15f6 HMH |
4725 | rc = fan_set_level(level); |
4726 | if (!rc) | |
4727 | fan_update_desired_level(level); | |
4728 | ||
4729 | mutex_unlock(&fan_mutex); | |
4730 | return rc; | |
fe98a52c HMH |
4731 | } |
4732 | ||
b21a15f6 | 4733 | static int fan_set_enable(void) |
fe98a52c | 4734 | { |
b21a15f6 HMH |
4735 | u8 s; |
4736 | int rc; | |
fe98a52c | 4737 | |
ecf2a80a HMH |
4738 | if (!fan_control_allowed) |
4739 | return -EPERM; | |
4740 | ||
b21a15f6 HMH |
4741 | if (mutex_lock_interruptible(&fan_mutex)) |
4742 | return -ERESTARTSYS; | |
fe98a52c | 4743 | |
b21a15f6 HMH |
4744 | switch (fan_control_access_mode) { |
4745 | case TPACPI_FAN_WR_ACPI_FANS: | |
4746 | case TPACPI_FAN_WR_TPEC: | |
4747 | rc = fan_get_status(&s); | |
4748 | if (rc < 0) | |
4749 | break; | |
fe98a52c | 4750 | |
b21a15f6 HMH |
4751 | /* Don't go out of emergency fan mode */ |
4752 | if (s != 7) { | |
4753 | s &= 0x07; | |
4754 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4755 | } | |
fe98a52c | 4756 | |
b21a15f6 HMH |
4757 | if (!acpi_ec_write(fan_status_offset, s)) |
4758 | rc = -EIO; | |
4759 | else { | |
4760 | tp_features.fan_ctrl_status_undef = 0; | |
4761 | rc = 0; | |
4762 | } | |
4763 | break; | |
fe98a52c | 4764 | |
b21a15f6 HMH |
4765 | case TPACPI_FAN_WR_ACPI_SFAN: |
4766 | rc = fan_get_status(&s); | |
4767 | if (rc < 0) | |
4768 | break; | |
fe98a52c | 4769 | |
b21a15f6 | 4770 | s &= 0x07; |
fe98a52c | 4771 | |
b21a15f6 HMH |
4772 | /* Set fan to at least level 4 */ |
4773 | s |= 4; | |
fe08bc4b | 4774 | |
b21a15f6 HMH |
4775 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
4776 | rc= -EIO; | |
4777 | else | |
4778 | rc = 0; | |
4779 | break; | |
78f81cc4 | 4780 | |
b21a15f6 HMH |
4781 | default: |
4782 | rc = -ENXIO; | |
4783 | } | |
5fba344c | 4784 | |
b21a15f6 HMH |
4785 | mutex_unlock(&fan_mutex); |
4786 | return rc; | |
69ba91cb | 4787 | } |
78f81cc4 | 4788 | |
b21a15f6 | 4789 | static int fan_set_disable(void) |
78f81cc4 | 4790 | { |
b21a15f6 | 4791 | int rc; |
c52f0aa5 | 4792 | |
b21a15f6 HMH |
4793 | if (!fan_control_allowed) |
4794 | return -EPERM; | |
78f81cc4 | 4795 | |
b21a15f6 HMH |
4796 | if (mutex_lock_interruptible(&fan_mutex)) |
4797 | return -ERESTARTSYS; | |
3ef8a609 | 4798 | |
b21a15f6 HMH |
4799 | rc = 0; |
4800 | switch (fan_control_access_mode) { | |
4801 | case TPACPI_FAN_WR_ACPI_FANS: | |
4802 | case TPACPI_FAN_WR_TPEC: | |
4803 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
4804 | rc = -EIO; | |
4805 | else { | |
4806 | fan_control_desired_level = 0; | |
4807 | tp_features.fan_ctrl_status_undef = 0; | |
4808 | } | |
3ef8a609 HMH |
4809 | break; |
4810 | ||
b21a15f6 HMH |
4811 | case TPACPI_FAN_WR_ACPI_SFAN: |
4812 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
4813 | rc = -EIO; | |
4814 | else | |
4815 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
4816 | break; |
4817 | ||
4818 | default: | |
b21a15f6 | 4819 | rc = -ENXIO; |
78f81cc4 BD |
4820 | } |
4821 | ||
fe98a52c | 4822 | |
fe98a52c | 4823 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
4824 | return rc; |
4825 | } | |
4826 | ||
b21a15f6 | 4827 | static int fan_set_speed(int speed) |
c52f0aa5 | 4828 | { |
b21a15f6 | 4829 | int rc; |
c52f0aa5 | 4830 | |
b21a15f6 HMH |
4831 | if (!fan_control_allowed) |
4832 | return -EPERM; | |
3ef8a609 | 4833 | |
b21a15f6 HMH |
4834 | if (mutex_lock_interruptible(&fan_mutex)) |
4835 | return -ERESTARTSYS; | |
c52f0aa5 | 4836 | |
b21a15f6 HMH |
4837 | rc = 0; |
4838 | switch (fan_control_access_mode) { | |
4839 | case TPACPI_FAN_WR_ACPI_FANS: | |
4840 | if (speed >= 0 && speed <= 65535) { | |
4841 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4842 | speed, speed, speed)) | |
4843 | rc = -EIO; | |
4844 | } else | |
4845 | rc = -EINVAL; | |
c52f0aa5 HMH |
4846 | break; |
4847 | ||
4848 | default: | |
b21a15f6 | 4849 | rc = -ENXIO; |
c52f0aa5 HMH |
4850 | } |
4851 | ||
b21a15f6 HMH |
4852 | mutex_unlock(&fan_mutex); |
4853 | return rc; | |
16663a87 HMH |
4854 | } |
4855 | ||
4856 | static void fan_watchdog_reset(void) | |
4857 | { | |
94954cc6 | 4858 | static int fan_watchdog_active; |
16663a87 | 4859 | |
4985cd0a HMH |
4860 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
4861 | return; | |
4862 | ||
16663a87 HMH |
4863 | if (fan_watchdog_active) |
4864 | cancel_delayed_work(&fan_watchdog_task); | |
4865 | ||
8fef502e HMH |
4866 | if (fan_watchdog_maxinterval > 0 && |
4867 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
4868 | fan_watchdog_active = 1; |
4869 | if (!schedule_delayed_work(&fan_watchdog_task, | |
4870 | msecs_to_jiffies(fan_watchdog_maxinterval | |
4871 | * 1000))) { | |
4872 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
4873 | "watchdog will not trigger\n"); | |
4874 | } | |
4875 | } else | |
4876 | fan_watchdog_active = 0; | |
4877 | } | |
4878 | ||
b21a15f6 | 4879 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 4880 | { |
b21a15f6 | 4881 | int rc; |
18ad7996 | 4882 | |
b21a15f6 HMH |
4883 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
4884 | return; | |
a12095c2 | 4885 | |
b21a15f6 HMH |
4886 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
4887 | rc = fan_set_enable(); | |
4888 | if (rc < 0) { | |
4889 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
4890 | "will try again later...\n", -rc); | |
4891 | /* reschedule for later */ | |
4892 | fan_watchdog_reset(); | |
4893 | } | |
4894 | } | |
eaa7571b | 4895 | |
b21a15f6 HMH |
4896 | /* |
4897 | * SYSFS fan layout: hwmon compatible (device) | |
4898 | * | |
4899 | * pwm*_enable: | |
4900 | * 0: "disengaged" mode | |
4901 | * 1: manual mode | |
4902 | * 2: native EC "auto" mode (recommended, hardware default) | |
4903 | * | |
4904 | * pwm*: set speed in manual mode, ignored otherwise. | |
4905 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
4906 | * interpolation. | |
4907 | * | |
4908 | * fan*_input: tachometer reading, RPM | |
4909 | * | |
4910 | * | |
4911 | * SYSFS fan layout: extensions | |
4912 | * | |
4913 | * fan_watchdog (driver): | |
4914 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
4915 | */ | |
4916 | ||
4917 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
4918 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
4919 | struct device_attribute *attr, | |
4920 | char *buf) | |
4921 | { | |
4922 | int res, mode; | |
4923 | u8 status; | |
4924 | ||
4925 | res = fan_get_status_safe(&status); | |
4926 | if (res) | |
4927 | return res; | |
4928 | ||
4929 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4930 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 4931 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
4932 | } else { |
4933 | /* Return most likely status. In fact, it | |
4934 | * might be the only possible status */ | |
4935 | status = TP_EC_FAN_AUTO; | |
4936 | } | |
4937 | } | |
4938 | ||
4939 | if (status & TP_EC_FAN_FULLSPEED) { | |
4940 | mode = 0; | |
4941 | } else if (status & TP_EC_FAN_AUTO) { | |
4942 | mode = 2; | |
4943 | } else | |
4944 | mode = 1; | |
4945 | ||
4946 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
4947 | } | |
a12095c2 | 4948 | |
b21a15f6 HMH |
4949 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
4950 | struct device_attribute *attr, | |
4951 | const char *buf, size_t count) | |
4952 | { | |
4953 | unsigned long t; | |
4954 | int res, level; | |
4955 | ||
4956 | if (parse_strtoul(buf, 2, &t)) | |
4957 | return -EINVAL; | |
4958 | ||
4959 | switch (t) { | |
4960 | case 0: | |
4961 | level = TP_EC_FAN_FULLSPEED; | |
4962 | break; | |
4963 | case 1: | |
4964 | level = TPACPI_FAN_LAST_LEVEL; | |
4965 | break; | |
4966 | case 2: | |
4967 | level = TP_EC_FAN_AUTO; | |
4968 | break; | |
4969 | case 3: | |
4970 | /* reserved for software-controlled auto mode */ | |
4971 | return -ENOSYS; | |
18ad7996 | 4972 | default: |
b21a15f6 | 4973 | return -EINVAL; |
18ad7996 | 4974 | } |
b21a15f6 HMH |
4975 | |
4976 | res = fan_set_level_safe(level); | |
4977 | if (res == -ENXIO) | |
4978 | return -EINVAL; | |
4979 | else if (res < 0) | |
4980 | return res; | |
4981 | ||
4982 | fan_watchdog_reset(); | |
4983 | ||
4984 | return count; | |
18ad7996 HMH |
4985 | } |
4986 | ||
b21a15f6 HMH |
4987 | static struct device_attribute dev_attr_fan_pwm1_enable = |
4988 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
4989 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
4990 | ||
4991 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
4992 | static ssize_t fan_pwm1_show(struct device *dev, | |
4993 | struct device_attribute *attr, | |
4994 | char *buf) | |
fe98a52c | 4995 | { |
b21a15f6 HMH |
4996 | int res; |
4997 | u8 status; | |
fe98a52c | 4998 | |
b21a15f6 HMH |
4999 | res = fan_get_status_safe(&status); |
5000 | if (res) | |
5001 | return res; | |
ecf2a80a | 5002 | |
b21a15f6 HMH |
5003 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5004 | if (status != fan_control_initial_status) { | |
5005 | tp_features.fan_ctrl_status_undef = 0; | |
5006 | } else { | |
5007 | status = TP_EC_FAN_AUTO; | |
5008 | } | |
5009 | } | |
fe98a52c | 5010 | |
b21a15f6 HMH |
5011 | if ((status & |
5012 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5013 | status = fan_control_desired_level; | |
fe98a52c | 5014 | |
b21a15f6 HMH |
5015 | if (status > 7) |
5016 | status = 7; | |
fe98a52c | 5017 | |
b21a15f6 | 5018 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5019 | } |
5020 | ||
b21a15f6 HMH |
5021 | static ssize_t fan_pwm1_store(struct device *dev, |
5022 | struct device_attribute *attr, | |
5023 | const char *buf, size_t count) | |
18ad7996 | 5024 | { |
b21a15f6 | 5025 | unsigned long s; |
1c6a334e | 5026 | int rc; |
b21a15f6 | 5027 | u8 status, newlevel; |
1c6a334e | 5028 | |
b21a15f6 HMH |
5029 | if (parse_strtoul(buf, 255, &s)) |
5030 | return -EINVAL; | |
5031 | ||
5032 | /* scale down from 0-255 to 0-7 */ | |
5033 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 5034 | |
fc589a3c HMH |
5035 | if (mutex_lock_interruptible(&fan_mutex)) |
5036 | return -ERESTARTSYS; | |
40ca9fdf | 5037 | |
b21a15f6 HMH |
5038 | rc = fan_get_status(&status); |
5039 | if (!rc && (status & | |
5040 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5041 | rc = fan_set_level(newlevel); | |
5042 | if (rc == -ENXIO) | |
5043 | rc = -EINVAL; | |
5044 | else if (!rc) { | |
5045 | fan_update_desired_level(newlevel); | |
5046 | fan_watchdog_reset(); | |
eaa7571b | 5047 | } |
b21a15f6 | 5048 | } |
1c6a334e | 5049 | |
b21a15f6 HMH |
5050 | mutex_unlock(&fan_mutex); |
5051 | return (rc)? rc : count; | |
5052 | } | |
1c6a334e | 5053 | |
b21a15f6 HMH |
5054 | static struct device_attribute dev_attr_fan_pwm1 = |
5055 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
5056 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 5057 | |
b21a15f6 HMH |
5058 | /* sysfs fan fan1_input ------------------------------------------------ */ |
5059 | static ssize_t fan_fan1_input_show(struct device *dev, | |
5060 | struct device_attribute *attr, | |
5061 | char *buf) | |
5062 | { | |
5063 | int res; | |
5064 | unsigned int speed; | |
1c6a334e | 5065 | |
b21a15f6 HMH |
5066 | res = fan_get_speed(&speed); |
5067 | if (res < 0) | |
5068 | return res; | |
1c6a334e | 5069 | |
b21a15f6 HMH |
5070 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
5071 | } | |
18ad7996 | 5072 | |
b21a15f6 HMH |
5073 | static struct device_attribute dev_attr_fan_fan1_input = |
5074 | __ATTR(fan1_input, S_IRUGO, | |
5075 | fan_fan1_input_show, NULL); | |
40ca9fdf | 5076 | |
b21a15f6 HMH |
5077 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
5078 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5079 | char *buf) | |
5080 | { | |
5081 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5082 | } |
5083 | ||
b21a15f6 HMH |
5084 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5085 | const char *buf, size_t count) | |
18ad7996 | 5086 | { |
b21a15f6 HMH |
5087 | unsigned long t; |
5088 | ||
5089 | if (parse_strtoul(buf, 120, &t)) | |
5090 | return -EINVAL; | |
40ca9fdf | 5091 | |
ecf2a80a HMH |
5092 | if (!fan_control_allowed) |
5093 | return -EPERM; | |
5094 | ||
b21a15f6 HMH |
5095 | fan_watchdog_maxinterval = t; |
5096 | fan_watchdog_reset(); | |
40ca9fdf | 5097 | |
b21a15f6 HMH |
5098 | return count; |
5099 | } | |
5100 | ||
5101 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5102 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5103 | ||
5104 | /* --------------------------------------------------------------------- */ | |
5105 | static struct attribute *fan_attributes[] = { | |
5106 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5107 | &dev_attr_fan_fan1_input.attr, | |
5108 | NULL | |
5109 | }; | |
5110 | ||
5111 | static const struct attribute_group fan_attr_group = { | |
5112 | .attrs = fan_attributes, | |
5113 | }; | |
5114 | ||
5115 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5116 | { | |
5117 | int rc; | |
5118 | ||
5119 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5120 | ||
5121 | mutex_init(&fan_mutex); | |
5122 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5123 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5124 | fan_control_commands = 0; | |
5125 | fan_watchdog_maxinterval = 0; | |
5126 | tp_features.fan_ctrl_status_undef = 0; | |
5127 | fan_control_desired_level = 7; | |
5128 | ||
5129 | IBM_ACPIHANDLE_INIT(fans); | |
5130 | IBM_ACPIHANDLE_INIT(gfan); | |
5131 | IBM_ACPIHANDLE_INIT(sfan); | |
5132 | ||
5133 | if (gfan_handle) { | |
5134 | /* 570, 600e/x, 770e, 770x */ | |
5135 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5136 | } else { | |
5137 | /* all other ThinkPads: note that even old-style | |
5138 | * ThinkPad ECs supports the fan control register */ | |
5139 | if (likely(acpi_ec_read(fan_status_offset, | |
5140 | &fan_control_initial_status))) { | |
5141 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5142 | ||
5143 | /* In some ThinkPads, neither the EC nor the ACPI | |
5144 | * DSDT initialize the fan status, and it ends up | |
5145 | * being set to 0x07 when it *could* be either | |
5146 | * 0x07 or 0x80. | |
5147 | * | |
5148 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5149 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5150 | * to be buggy. */ | |
5151 | if (fan_control_initial_status == 0x07) { | |
5152 | switch (thinkpad_id.ec_model) { | |
5153 | case 0x5931: /* TP-1Y */ | |
5154 | case 0x3837: /* TP-78 */ | |
5155 | case 0x3637: /* TP-76 */ | |
5156 | case 0x3037: /* TP-70 */ | |
5157 | printk(IBM_NOTICE | |
5158 | "fan_init: initial fan status is " | |
5159 | "unknown, assuming it is in auto " | |
5160 | "mode\n"); | |
5161 | tp_features.fan_ctrl_status_undef = 1; | |
5162 | ;; | |
5163 | } | |
5164 | } | |
5165 | } else { | |
5166 | printk(IBM_ERR | |
5167 | "ThinkPad ACPI EC access misbehaving, " | |
5168 | "fan status and control unavailable\n"); | |
5169 | return 1; | |
5170 | } | |
5171 | } | |
5172 | ||
5173 | if (sfan_handle) { | |
5174 | /* 570, 770x-JL */ | |
5175 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5176 | fan_control_commands |= | |
5177 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5178 | } else { | |
5179 | if (!gfan_handle) { | |
5180 | /* gfan without sfan means no fan control */ | |
5181 | /* all other models implement TP EC 0x2f control */ | |
5182 | ||
5183 | if (fans_handle) { | |
5184 | /* X31, X40, X41 */ | |
5185 | fan_control_access_mode = | |
5186 | TPACPI_FAN_WR_ACPI_FANS; | |
5187 | fan_control_commands |= | |
5188 | TPACPI_FAN_CMD_SPEED | | |
5189 | TPACPI_FAN_CMD_LEVEL | | |
5190 | TPACPI_FAN_CMD_ENABLE; | |
5191 | } else { | |
5192 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5193 | fan_control_commands |= | |
5194 | TPACPI_FAN_CMD_LEVEL | | |
5195 | TPACPI_FAN_CMD_ENABLE; | |
5196 | } | |
fe98a52c | 5197 | } |
b21a15f6 | 5198 | } |
18ad7996 | 5199 | |
b21a15f6 HMH |
5200 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5201 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5202 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5203 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5204 | |
b21a15f6 HMH |
5205 | /* fan control master switch */ |
5206 | if (!fan_control_allowed) { | |
5207 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5208 | fan_control_commands = 0; | |
5209 | dbg_printk(TPACPI_DBG_INIT, | |
5210 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5211 | } |
40ca9fdf | 5212 | |
b21a15f6 HMH |
5213 | /* update fan_control_desired_level */ |
5214 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5215 | fan_get_status_safe(NULL); | |
fe98a52c | 5216 | |
b21a15f6 HMH |
5217 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5218 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5219 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5220 | &fan_attr_group); | |
5221 | if (!(rc < 0)) | |
5222 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5223 | &driver_attr_fan_watchdog); | |
5224 | if (rc < 0) | |
5225 | return rc; | |
5226 | return 0; | |
5227 | } else | |
5228 | return 1; | |
56b6aeb0 HMH |
5229 | } |
5230 | ||
b21a15f6 | 5231 | static void fan_exit(void) |
56b6aeb0 | 5232 | { |
b21a15f6 | 5233 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 5234 | |
b21a15f6 HMH |
5235 | /* FIXME: can we really do this unconditionally? */ |
5236 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
5237 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog); | |
40ca9fdf | 5238 | |
b21a15f6 HMH |
5239 | cancel_delayed_work(&fan_watchdog_task); |
5240 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5241 | } |
5242 | ||
5243 | static int fan_read(char *p) | |
5244 | { | |
5245 | int len = 0; | |
5246 | int rc; | |
5247 | u8 status; | |
5248 | unsigned int speed = 0; | |
5249 | ||
5250 | switch (fan_status_access_mode) { | |
efa27145 | 5251 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5252 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 5253 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5254 | return rc; |
5255 | ||
5256 | len += sprintf(p + len, "status:\t\t%s\n" | |
5257 | "level:\t\t%d\n", | |
5258 | (status != 0) ? "enabled" : "disabled", status); | |
5259 | break; | |
5260 | ||
efa27145 | 5261 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5262 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 5263 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5264 | return rc; |
5265 | ||
d8fd94d9 | 5266 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5267 | if (status != fan_control_initial_status) |
d8fd94d9 | 5268 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5269 | else |
5270 | /* Return most likely status. In fact, it | |
5271 | * might be the only possible status */ | |
efa27145 | 5272 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5273 | } |
5274 | ||
5275 | len += sprintf(p + len, "status:\t\t%s\n", | |
5276 | (status != 0) ? "enabled" : "disabled"); | |
5277 | ||
56b6aeb0 HMH |
5278 | if ((rc = fan_get_speed(&speed)) < 0) |
5279 | return rc; | |
5280 | ||
5281 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5282 | ||
efa27145 | 5283 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5284 | /* Disengaged mode takes precedence */ |
5285 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5286 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5287 | len += sprintf(p + len, "level:\t\tauto\n"); |
5288 | else | |
5289 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5290 | break; | |
5291 | ||
efa27145 | 5292 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5293 | default: |
5294 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5295 | } | |
5296 | ||
efa27145 | 5297 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5298 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5299 | ||
5300 | switch (fan_control_access_mode) { | |
efa27145 | 5301 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5302 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5303 | break; | |
5304 | ||
5305 | default: | |
5306 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5307 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5308 | break; |
5309 | } | |
5310 | } | |
18ad7996 | 5311 | |
efa27145 | 5312 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
5313 | len += sprintf(p + len, "commands:\tenable, disable\n" |
5314 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
5315 | "1-120 (seconds))\n"); | |
1da177e4 | 5316 | |
efa27145 | 5317 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5318 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5319 | " (<speed> is 0-65535)\n"); | |
5320 | ||
5321 | return len; | |
78f81cc4 BD |
5322 | } |
5323 | ||
18ad7996 HMH |
5324 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5325 | { | |
5326 | int level; | |
5327 | ||
a12095c2 | 5328 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5329 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
5330 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
5331 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 5332 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5333 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5334 | return 0; |
5335 | ||
fe98a52c | 5336 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
5337 | printk(IBM_ERR "level command accepted for unsupported " |
5338 | "access mode %d", fan_control_access_mode); | |
5339 | ||
5340 | return 1; | |
5341 | } | |
5342 | ||
5343 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5344 | { | |
5345 | if (strlencmp(cmd, "enable") != 0) | |
5346 | return 0; | |
5347 | ||
5348 | if ((*rc = fan_set_enable()) == -ENXIO) | |
5349 | printk(IBM_ERR "enable command accepted for unsupported " | |
5350 | "access mode %d", fan_control_access_mode); | |
5351 | ||
5352 | return 1; | |
5353 | } | |
5354 | ||
5355 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5356 | { | |
5357 | if (strlencmp(cmd, "disable") != 0) | |
5358 | return 0; | |
5359 | ||
5360 | if ((*rc = fan_set_disable()) == -ENXIO) | |
5361 | printk(IBM_ERR "disable command accepted for unsupported " | |
5362 | "access mode %d", fan_control_access_mode); | |
5363 | ||
5364 | return 1; | |
5365 | } | |
5366 | ||
5367 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5368 | { | |
5369 | int speed; | |
5370 | ||
a8b7a662 HMH |
5371 | /* TODO: |
5372 | * Support speed <low> <medium> <high> ? */ | |
5373 | ||
18ad7996 HMH |
5374 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5375 | return 0; | |
5376 | ||
5377 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
5378 | printk(IBM_ERR "speed command accepted for unsupported " | |
5379 | "access mode %d", fan_control_access_mode); | |
5380 | ||
5381 | return 1; | |
5382 | } | |
5383 | ||
16663a87 HMH |
5384 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5385 | { | |
5386 | int interval; | |
5387 | ||
5388 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5389 | return 0; | |
5390 | ||
5391 | if (interval < 0 || interval > 120) | |
5392 | *rc = -EINVAL; | |
5393 | else | |
5394 | fan_watchdog_maxinterval = interval; | |
5395 | ||
5396 | return 1; | |
5397 | } | |
5398 | ||
18ad7996 HMH |
5399 | static int fan_write(char *buf) |
5400 | { | |
5401 | char *cmd; | |
5402 | int rc = 0; | |
5403 | ||
5404 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5405 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5406 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5407 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5408 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5409 | fan_write_cmd_disable(cmd, &rc) || |
5410 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5411 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5412 | fan_write_cmd_speed(cmd, &rc)) |
5413 | ) | |
5414 | rc = -EINVAL; | |
16663a87 HMH |
5415 | else if (!rc) |
5416 | fan_watchdog_reset(); | |
18ad7996 HMH |
5417 | } |
5418 | ||
5419 | return rc; | |
5420 | } | |
5421 | ||
a5763f22 HMH |
5422 | static struct ibm_struct fan_driver_data = { |
5423 | .name = "fan", | |
5424 | .read = fan_read, | |
5425 | .write = fan_write, | |
5426 | .exit = fan_exit, | |
a5763f22 HMH |
5427 | }; |
5428 | ||
56b6aeb0 HMH |
5429 | /**************************************************************************** |
5430 | **************************************************************************** | |
5431 | * | |
5432 | * Infrastructure | |
5433 | * | |
5434 | **************************************************************************** | |
5435 | ****************************************************************************/ | |
5436 | ||
7fd40029 HMH |
5437 | /* sysfs name ---------------------------------------------------------- */ |
5438 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5439 | struct device_attribute *attr, | |
5440 | char *buf) | |
5441 | { | |
5442 | return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME); | |
5443 | } | |
5444 | ||
5445 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5446 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5447 | ||
5448 | /* --------------------------------------------------------------------- */ | |
5449 | ||
56b6aeb0 | 5450 | /* /proc support */ |
94954cc6 | 5451 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5452 | |
56b6aeb0 HMH |
5453 | /* |
5454 | * Module and infrastructure proble, init and exit handling | |
5455 | */ | |
1da177e4 | 5456 | |
b21a15f6 HMH |
5457 | static int force_load; |
5458 | ||
fe08bc4b | 5459 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5460 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5461 | { |
a5763f22 | 5462 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5463 | |
a5763f22 | 5464 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5465 | } |
5466 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5467 | ||
b21a15f6 HMH |
5468 | static void ibm_exit(struct ibm_struct *ibm) |
5469 | { | |
5470 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5471 | ||
5472 | list_del_init(&ibm->all_drivers); | |
5473 | ||
5474 | if (ibm->flags.acpi_notify_installed) { | |
5475 | dbg_printk(TPACPI_DBG_EXIT, | |
5476 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5477 | BUG_ON(!ibm->acpi); | |
5478 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5479 | ibm->acpi->type, | |
5480 | dispatch_acpi_notify); | |
5481 | ibm->flags.acpi_notify_installed = 0; | |
5482 | ibm->flags.acpi_notify_installed = 0; | |
5483 | } | |
5484 | ||
5485 | if (ibm->flags.proc_created) { | |
5486 | dbg_printk(TPACPI_DBG_EXIT, | |
5487 | "%s: remove_proc_entry\n", ibm->name); | |
5488 | remove_proc_entry(ibm->name, proc_dir); | |
5489 | ibm->flags.proc_created = 0; | |
5490 | } | |
5491 | ||
5492 | if (ibm->flags.acpi_driver_registered) { | |
5493 | dbg_printk(TPACPI_DBG_EXIT, | |
5494 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5495 | BUG_ON(!ibm->acpi); | |
5496 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5497 | kfree(ibm->acpi->driver); | |
5498 | ibm->acpi->driver = NULL; | |
5499 | ibm->flags.acpi_driver_registered = 0; | |
5500 | } | |
5501 | ||
5502 | if (ibm->flags.init_called && ibm->exit) { | |
5503 | ibm->exit(); | |
5504 | ibm->flags.init_called = 0; | |
5505 | } | |
5506 | ||
5507 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5508 | } | |
f74a27d4 | 5509 | |
a5763f22 | 5510 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5511 | { |
5512 | int ret; | |
a5763f22 | 5513 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5514 | struct proc_dir_entry *entry; |
5515 | ||
a5763f22 HMH |
5516 | BUG_ON(ibm == NULL); |
5517 | ||
5518 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5519 | ||
92641177 | 5520 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5521 | return 0; |
5522 | ||
fe08bc4b HMH |
5523 | dbg_printk(TPACPI_DBG_INIT, |
5524 | "probing for %s\n", ibm->name); | |
5525 | ||
a5763f22 HMH |
5526 | if (iibm->init) { |
5527 | ret = iibm->init(iibm); | |
5fba344c HMH |
5528 | if (ret > 0) |
5529 | return 0; /* probe failed */ | |
5530 | if (ret) | |
1da177e4 | 5531 | return ret; |
a5763f22 | 5532 | |
92641177 | 5533 | ibm->flags.init_called = 1; |
1da177e4 LT |
5534 | } |
5535 | ||
8d376cd6 HMH |
5536 | if (ibm->acpi) { |
5537 | if (ibm->acpi->hid) { | |
5538 | ret = register_tpacpi_subdriver(ibm); | |
5539 | if (ret) | |
5540 | goto err_out; | |
5541 | } | |
5fba344c | 5542 | |
8d376cd6 HMH |
5543 | if (ibm->acpi->notify) { |
5544 | ret = setup_acpi_notify(ibm); | |
5545 | if (ret == -ENODEV) { | |
5546 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
5547 | ibm->name); | |
5548 | ret = 0; | |
5549 | goto err_out; | |
5550 | } | |
5551 | if (ret < 0) | |
5552 | goto err_out; | |
5fba344c | 5553 | } |
5fba344c HMH |
5554 | } |
5555 | ||
fe08bc4b HMH |
5556 | dbg_printk(TPACPI_DBG_INIT, |
5557 | "%s installed\n", ibm->name); | |
5558 | ||
78f81cc4 BD |
5559 | if (ibm->read) { |
5560 | entry = create_proc_entry(ibm->name, | |
5561 | S_IFREG | S_IRUGO | S_IWUSR, | |
5562 | proc_dir); | |
5563 | if (!entry) { | |
5564 | printk(IBM_ERR "unable to create proc entry %s\n", | |
5565 | ibm->name); | |
5fba344c HMH |
5566 | ret = -ENODEV; |
5567 | goto err_out; | |
78f81cc4 BD |
5568 | } |
5569 | entry->owner = THIS_MODULE; | |
5570 | entry->data = ibm; | |
8d376cd6 | 5571 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5572 | if (ibm->write) |
8d376cd6 | 5573 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5574 | ibm->flags.proc_created = 1; |
78f81cc4 | 5575 | } |
1da177e4 | 5576 | |
a5763f22 HMH |
5577 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5578 | ||
1da177e4 | 5579 | return 0; |
5fba344c HMH |
5580 | |
5581 | err_out: | |
fe08bc4b HMH |
5582 | dbg_printk(TPACPI_DBG_INIT, |
5583 | "%s: at error exit path with result %d\n", | |
5584 | ibm->name, ret); | |
5585 | ||
5fba344c HMH |
5586 | ibm_exit(ibm); |
5587 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5588 | } |
5589 | ||
56b6aeb0 HMH |
5590 | /* Probing */ |
5591 | ||
d5a2f2f1 | 5592 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5593 | { |
1855256c | 5594 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5595 | char ec_fw_string[18]; |
1da177e4 | 5596 | |
d5a2f2f1 HMH |
5597 | if (!tp) |
5598 | return; | |
5599 | ||
5600 | memset(tp, 0, sizeof(*tp)); | |
5601 | ||
5602 | if (dmi_name_in_vendors("IBM")) | |
5603 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5604 | else if (dmi_name_in_vendors("LENOVO")) | |
5605 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5606 | else | |
5607 | return; | |
5608 | ||
5609 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5610 | GFP_KERNEL); | |
5611 | if (!tp->bios_version_str) | |
5612 | return; | |
5613 | tp->bios_model = tp->bios_version_str[0] | |
5614 | | (tp->bios_version_str[1] << 8); | |
5615 | ||
56b6aeb0 HMH |
5616 | /* |
5617 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5618 | * X32 or newer, all Z series; Some models must have an | |
5619 | * up-to-date BIOS or they will not be detected. | |
5620 | * | |
5621 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5622 | */ | |
5623 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5624 | if (sscanf(dev->name, | |
5625 | "IBM ThinkPad Embedded Controller -[%17c", | |
5626 | ec_fw_string) == 1) { | |
5627 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5628 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5629 | |
5630 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5631 | tp->ec_model = ec_fw_string[0] | |
5632 | | (ec_fw_string[1] << 8); | |
5633 | break; | |
78f81cc4 | 5634 | } |
1da177e4 | 5635 | } |
d5a2f2f1 HMH |
5636 | |
5637 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5638 | GFP_KERNEL); | |
5639 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5640 | kfree(tp->model_str); | |
5641 | tp->model_str = NULL; | |
5642 | } | |
1da177e4 LT |
5643 | } |
5644 | ||
5fba344c HMH |
5645 | static int __init probe_for_thinkpad(void) |
5646 | { | |
5647 | int is_thinkpad; | |
5648 | ||
5649 | if (acpi_disabled) | |
5650 | return -ENODEV; | |
5651 | ||
5652 | /* | |
5653 | * Non-ancient models have better DMI tagging, but very old models | |
5654 | * don't. | |
5655 | */ | |
d5a2f2f1 | 5656 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5657 | |
5658 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 5659 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5660 | if (!ec_handle) { |
5661 | if (is_thinkpad) | |
5662 | printk(IBM_ERR | |
5663 | "Not yet supported ThinkPad detected!\n"); | |
5664 | return -ENODEV; | |
5665 | } | |
5666 | ||
0dcef77c HMH |
5667 | /* |
5668 | * Risks a regression on very old machines, but reduces potential | |
5669 | * false positives a damn great deal | |
5670 | */ | |
5671 | if (!is_thinkpad) | |
d5a2f2f1 | 5672 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5673 | |
5674 | if (!is_thinkpad && !force_load) | |
5675 | return -ENODEV; | |
5676 | ||
5fba344c HMH |
5677 | return 0; |
5678 | } | |
5679 | ||
5680 | ||
56b6aeb0 | 5681 | /* Module init, exit, parameters */ |
1da177e4 | 5682 | |
a5763f22 HMH |
5683 | static struct ibm_init_struct ibms_init[] __initdata = { |
5684 | { | |
5685 | .init = thinkpad_acpi_driver_init, | |
5686 | .data = &thinkpad_acpi_driver_data, | |
5687 | }, | |
5688 | { | |
5689 | .init = hotkey_init, | |
5690 | .data = &hotkey_driver_data, | |
5691 | }, | |
5692 | { | |
5693 | .init = bluetooth_init, | |
5694 | .data = &bluetooth_driver_data, | |
5695 | }, | |
5696 | { | |
5697 | .init = wan_init, | |
5698 | .data = &wan_driver_data, | |
5699 | }, | |
5700 | { | |
5701 | .init = video_init, | |
5702 | .data = &video_driver_data, | |
5703 | }, | |
5704 | { | |
5705 | .init = light_init, | |
5706 | .data = &light_driver_data, | |
5707 | }, | |
5708 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5709 | { | |
5710 | .init = dock_init, | |
5711 | .data = &dock_driver_data[0], | |
5712 | }, | |
5713 | { | |
d94a7f16 | 5714 | .init = dock_init2, |
a5763f22 HMH |
5715 | .data = &dock_driver_data[1], |
5716 | }, | |
5717 | #endif | |
5718 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5719 | { | |
5720 | .init = bay_init, | |
5721 | .data = &bay_driver_data, | |
5722 | }, | |
5723 | #endif | |
5724 | { | |
5725 | .init = cmos_init, | |
5726 | .data = &cmos_driver_data, | |
5727 | }, | |
5728 | { | |
5729 | .init = led_init, | |
5730 | .data = &led_driver_data, | |
5731 | }, | |
5732 | { | |
5733 | .init = beep_init, | |
5734 | .data = &beep_driver_data, | |
5735 | }, | |
5736 | { | |
5737 | .init = thermal_init, | |
5738 | .data = &thermal_driver_data, | |
5739 | }, | |
5740 | { | |
5741 | .data = &ecdump_driver_data, | |
5742 | }, | |
5743 | { | |
5744 | .init = brightness_init, | |
5745 | .data = &brightness_driver_data, | |
5746 | }, | |
5747 | { | |
5748 | .data = &volume_driver_data, | |
5749 | }, | |
5750 | { | |
5751 | .init = fan_init, | |
5752 | .data = &fan_driver_data, | |
5753 | }, | |
5754 | }; | |
5755 | ||
3945ac36 | 5756 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5757 | { |
5758 | unsigned int i; | |
a5763f22 | 5759 | struct ibm_struct *ibm; |
1da177e4 | 5760 | |
59f91ff1 HMH |
5761 | if (!kp || !kp->name || !val) |
5762 | return -EINVAL; | |
5763 | ||
a5763f22 HMH |
5764 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5765 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5766 | WARN_ON(ibm == NULL); |
5767 | ||
5768 | if (!ibm || !ibm->name) | |
5769 | continue; | |
a5763f22 HMH |
5770 | |
5771 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5772 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5773 | return -ENOSPC; |
a5763f22 HMH |
5774 | strcpy(ibms_init[i].param, val); |
5775 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5776 | return 0; |
5777 | } | |
a5763f22 | 5778 | } |
1da177e4 | 5779 | |
1da177e4 LT |
5780 | return -EINVAL; |
5781 | } | |
5782 | ||
56b6aeb0 HMH |
5783 | module_param(experimental, int, 0); |
5784 | ||
132ce091 HMH |
5785 | module_param_named(debug, dbg_level, uint, 0); |
5786 | ||
86cc9445 | 5787 | module_param(force_load, bool, 0); |
0dcef77c | 5788 | |
86cc9445 | 5789 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 5790 | |
24d3b774 HMH |
5791 | module_param_named(brightness_mode, brightness_mode, int, 0); |
5792 | ||
87cc537a HMH |
5793 | module_param(brightness_enable, uint, 0); |
5794 | ||
ff80f137 HMH |
5795 | module_param(hotkey_report_mode, uint, 0); |
5796 | ||
1da177e4 LT |
5797 | #define IBM_PARAM(feature) \ |
5798 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
5799 | ||
78f81cc4 BD |
5800 | IBM_PARAM(hotkey); |
5801 | IBM_PARAM(bluetooth); | |
5802 | IBM_PARAM(video); | |
5803 | IBM_PARAM(light); | |
85998248 | 5804 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 5805 | IBM_PARAM(dock); |
63e5f248 | 5806 | #endif |
85998248 | 5807 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 5808 | IBM_PARAM(bay); |
85998248 | 5809 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
5810 | IBM_PARAM(cmos); |
5811 | IBM_PARAM(led); | |
5812 | IBM_PARAM(beep); | |
5813 | IBM_PARAM(ecdump); | |
5814 | IBM_PARAM(brightness); | |
5815 | IBM_PARAM(volume); | |
5816 | IBM_PARAM(fan); | |
5817 | ||
b21a15f6 HMH |
5818 | static void thinkpad_acpi_module_exit(void) |
5819 | { | |
5820 | struct ibm_struct *ibm, *itmp; | |
5821 | ||
5822 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
5823 | ||
5824 | list_for_each_entry_safe_reverse(ibm, itmp, | |
5825 | &tpacpi_all_drivers, | |
5826 | all_drivers) { | |
5827 | ibm_exit(ibm); | |
5828 | } | |
5829 | ||
5830 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
5831 | ||
5832 | if (tpacpi_inputdev) { | |
5833 | if (tp_features.input_device_registered) | |
5834 | input_unregister_device(tpacpi_inputdev); | |
5835 | else | |
5836 | input_free_device(tpacpi_inputdev); | |
5837 | } | |
5838 | ||
5839 | if (tpacpi_hwmon) | |
5840 | hwmon_device_unregister(tpacpi_hwmon); | |
5841 | ||
5842 | if (tp_features.sensors_pdev_attrs_registered) | |
5843 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
5844 | &dev_attr_thinkpad_acpi_pdev_name); | |
5845 | if (tpacpi_sensors_pdev) | |
5846 | platform_device_unregister(tpacpi_sensors_pdev); | |
5847 | if (tpacpi_pdev) | |
5848 | platform_device_unregister(tpacpi_pdev); | |
5849 | ||
5850 | if (tp_features.sensors_pdrv_attrs_registered) | |
5851 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5852 | if (tp_features.platform_drv_attrs_registered) | |
5853 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
5854 | ||
5855 | if (tp_features.sensors_pdrv_registered) | |
5856 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
5857 | ||
5858 | if (tp_features.platform_drv_registered) | |
5859 | platform_driver_unregister(&tpacpi_pdriver); | |
5860 | ||
5861 | if (proc_dir) | |
5862 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); | |
5863 | ||
5864 | kfree(thinkpad_id.bios_version_str); | |
5865 | kfree(thinkpad_id.ec_version_str); | |
5866 | kfree(thinkpad_id.model_str); | |
5867 | } | |
5868 | ||
f74a27d4 | 5869 | |
1def7115 | 5870 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
5871 | { |
5872 | int ret, i; | |
5873 | ||
8fef502e HMH |
5874 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
5875 | ||
ff80f137 HMH |
5876 | /* Parameter checking */ |
5877 | if (hotkey_report_mode > 2) | |
5878 | return -EINVAL; | |
5879 | ||
54ae1501 | 5880 | /* Driver-level probe */ |
d5a2f2f1 HMH |
5881 | |
5882 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 5883 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
5884 | if (ret) { |
5885 | thinkpad_acpi_module_exit(); | |
5fba344c | 5886 | return ret; |
d5a2f2f1 | 5887 | } |
1da177e4 | 5888 | |
54ae1501 | 5889 | /* Driver initialization */ |
d5a2f2f1 | 5890 | |
8d376cd6 HMH |
5891 | IBM_ACPIHANDLE_INIT(ecrd); |
5892 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 5893 | |
8d376cd6 | 5894 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 5895 | if (!proc_dir) { |
8d376cd6 | 5896 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 5897 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5898 | return -ENODEV; |
5899 | } | |
5900 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 5901 | |
54ae1501 HMH |
5902 | ret = platform_driver_register(&tpacpi_pdriver); |
5903 | if (ret) { | |
7fd40029 | 5904 | printk(IBM_ERR "unable to register main platform driver\n"); |
54ae1501 HMH |
5905 | thinkpad_acpi_module_exit(); |
5906 | return ret; | |
5907 | } | |
ac36393d HMH |
5908 | tp_features.platform_drv_registered = 1; |
5909 | ||
7fd40029 HMH |
5910 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
5911 | if (ret) { | |
5912 | printk(IBM_ERR "unable to register hwmon platform driver\n"); | |
5913 | thinkpad_acpi_module_exit(); | |
5914 | return ret; | |
5915 | } | |
5916 | tp_features.sensors_pdrv_registered = 1; | |
5917 | ||
176750d6 | 5918 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
5919 | if (!ret) { |
5920 | tp_features.platform_drv_attrs_registered = 1; | |
5921 | ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5922 | } | |
176750d6 HMH |
5923 | if (ret) { |
5924 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
5925 | thinkpad_acpi_module_exit(); | |
5926 | return ret; | |
5927 | } | |
2369cc94 | 5928 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 5929 | |
54ae1501 HMH |
5930 | |
5931 | /* Device initialization */ | |
5932 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
5933 | NULL, 0); | |
5934 | if (IS_ERR(tpacpi_pdev)) { | |
5935 | ret = PTR_ERR(tpacpi_pdev); | |
5936 | tpacpi_pdev = NULL; | |
5937 | printk(IBM_ERR "unable to register platform device\n"); | |
5938 | thinkpad_acpi_module_exit(); | |
5939 | return ret; | |
5940 | } | |
7fd40029 HMH |
5941 | tpacpi_sensors_pdev = platform_device_register_simple( |
5942 | IBM_HWMON_DRVR_NAME, | |
5943 | -1, NULL, 0); | |
5944 | if (IS_ERR(tpacpi_sensors_pdev)) { | |
5945 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
5946 | tpacpi_sensors_pdev = NULL; | |
5947 | printk(IBM_ERR "unable to register hwmon platform device\n"); | |
5948 | thinkpad_acpi_module_exit(); | |
5949 | return ret; | |
5950 | } | |
5951 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
5952 | &dev_attr_thinkpad_acpi_pdev_name); | |
5953 | if (ret) { | |
5954 | printk(IBM_ERR | |
5955 | "unable to create sysfs hwmon device attributes\n"); | |
5956 | thinkpad_acpi_module_exit(); | |
5957 | return ret; | |
5958 | } | |
5959 | tp_features.sensors_pdev_attrs_registered = 1; | |
5960 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
5961 | if (IS_ERR(tpacpi_hwmon)) { |
5962 | ret = PTR_ERR(tpacpi_hwmon); | |
5963 | tpacpi_hwmon = NULL; | |
5964 | printk(IBM_ERR "unable to register hwmon device\n"); | |
5965 | thinkpad_acpi_module_exit(); | |
5966 | return ret; | |
5967 | } | |
8523ed6f | 5968 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
5969 | tpacpi_inputdev = input_allocate_device(); |
5970 | if (!tpacpi_inputdev) { | |
5971 | printk(IBM_ERR "unable to allocate input device\n"); | |
5972 | thinkpad_acpi_module_exit(); | |
5973 | return -ENOMEM; | |
5974 | } else { | |
5975 | /* Prepare input device, but don't register */ | |
5976 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
5977 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
5978 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
5979 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
5980 | thinkpad_id.vendor : | |
5981 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
5982 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
5983 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
5984 | } | |
a5763f22 HMH |
5985 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5986 | ret = ibm_init(&ibms_init[i]); | |
5987 | if (ret >= 0 && *ibms_init[i].param) | |
5988 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 5989 | if (ret < 0) { |
1def7115 | 5990 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5991 | return ret; |
5992 | } | |
5993 | } | |
7f5d1cd6 HMH |
5994 | ret = input_register_device(tpacpi_inputdev); |
5995 | if (ret < 0) { | |
5996 | printk(IBM_ERR "unable to register input device\n"); | |
5997 | thinkpad_acpi_module_exit(); | |
5998 | return ret; | |
5999 | } else { | |
6000 | tp_features.input_device_registered = 1; | |
6001 | } | |
1da177e4 | 6002 | |
8fef502e | 6003 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
6004 | return 0; |
6005 | } | |
6006 | ||
1def7115 HMH |
6007 | module_init(thinkpad_acpi_module_init); |
6008 | module_exit(thinkpad_acpi_module_exit); |