Commit | Line | Data |
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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
6a2e293c | 6 | * Copyright (C) 2006-2008 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
490673dc | 24 | #define TPACPI_VERSION "0.21" |
50ebec09 | 25 | #define TPACPI_SYSFS_VERSION 0x020200 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
4fa6811b | 70 | #include <linux/leds.h> |
0e74dc26 | 71 | #include <linux/rfkill.h> |
0c78039f HMH |
72 | #include <asm/uaccess.h> |
73 | ||
74 | #include <linux/dmi.h> | |
75 | #include <linux/jiffies.h> | |
76 | #include <linux/workqueue.h> | |
77 | ||
78 | #include <acpi/acpi_drivers.h> | |
0c78039f HMH |
79 | |
80 | #include <linux/pci_ids.h> | |
81 | ||
0c78039f HMH |
82 | |
83 | /* ThinkPad CMOS commands */ | |
84 | #define TP_CMOS_VOLUME_DOWN 0 | |
85 | #define TP_CMOS_VOLUME_UP 1 | |
86 | #define TP_CMOS_VOLUME_MUTE 2 | |
87 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
88 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
89 | #define TP_CMOS_THINKLIGHT_ON 12 |
90 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
91 | |
92 | /* NVRAM Addresses */ | |
93 | enum tp_nvram_addr { | |
94 | TP_NVRAM_ADDR_HK2 = 0x57, | |
95 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
96 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
97 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
98 | TP_NVRAM_ADDR_MIXER = 0x60, | |
99 | }; | |
100 | ||
101 | /* NVRAM bit masks */ | |
102 | enum { | |
103 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
104 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
105 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
106 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
107 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
108 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
109 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
110 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
111 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
112 | TP_NVRAM_MASK_MUTE = 0x40, | |
113 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
114 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
115 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
116 | }; | |
117 | ||
b21a15f6 | 118 | /* ACPI HIDs */ |
e0c7dfe7 | 119 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
120 | |
121 | /* Input IDs */ | |
122 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
123 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
124 | ||
153f8220 HMH |
125 | /* ACPI \WGSV commands */ |
126 | enum { | |
127 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
128 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
129 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
130 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
131 | }; | |
132 | ||
133 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
134 | enum { | |
135 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
136 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
137 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
138 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
139 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
140 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
141 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
142 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
143 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
144 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
145 | }; | |
b21a15f6 HMH |
146 | |
147 | /**************************************************************************** | |
148 | * Main driver | |
149 | */ | |
150 | ||
e0c7dfe7 HMH |
151 | #define TPACPI_NAME "thinkpad" |
152 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
153 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
154 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
155 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 156 | |
e0c7dfe7 HMH |
157 | #define TPACPI_PROC_DIR "ibm" |
158 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
159 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 160 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 161 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 162 | |
95e57ab2 | 163 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 164 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 165 | |
e0c7dfe7 | 166 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 167 | |
0e74dc26 HMH |
168 | /* rfkill switches */ |
169 | enum { | |
170 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
171 | TPACPI_RFK_WWAN_SW_ID, | |
172 | }; | |
173 | ||
0c78039f | 174 | /* Debugging */ |
e0c7dfe7 HMH |
175 | #define TPACPI_LOG TPACPI_FILE ": " |
176 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
177 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
178 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
179 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 180 | |
0c78039f HMH |
181 | #define TPACPI_DBG_ALL 0xffff |
182 | #define TPACPI_DBG_INIT 0x0001 | |
183 | #define TPACPI_DBG_EXIT 0x0002 | |
184 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
185 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
186 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
187 | } while (0) | |
0c78039f HMH |
188 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
189 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
190 | dbg_printk(a_dbg_level, format, ## arg) | |
191 | static const char *str_supported(int is_supported); | |
192 | #else | |
193 | #define vdbg_printk(a_dbg_level, format, arg...) | |
194 | #endif | |
195 | ||
35ff8b9f HMH |
196 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
197 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
198 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 199 | |
0c78039f HMH |
200 | |
201 | /**************************************************************************** | |
b21a15f6 | 202 | * Driver-wide structs and misc. variables |
0c78039f HMH |
203 | */ |
204 | ||
205 | struct ibm_struct; | |
206 | ||
207 | struct tp_acpi_drv_struct { | |
208 | const struct acpi_device_id *hid; | |
209 | struct acpi_driver *driver; | |
210 | ||
211 | void (*notify) (struct ibm_struct *, u32); | |
212 | acpi_handle *handle; | |
213 | u32 type; | |
214 | struct acpi_device *device; | |
215 | }; | |
216 | ||
217 | struct ibm_struct { | |
218 | char *name; | |
219 | ||
220 | int (*read) (char *); | |
221 | int (*write) (char *); | |
222 | void (*exit) (void); | |
223 | void (*resume) (void); | |
083f1760 | 224 | void (*suspend) (pm_message_t state); |
0c78039f HMH |
225 | |
226 | struct list_head all_drivers; | |
227 | ||
228 | struct tp_acpi_drv_struct *acpi; | |
229 | ||
230 | struct { | |
231 | u8 acpi_driver_registered:1; | |
232 | u8 acpi_notify_installed:1; | |
233 | u8 proc_created:1; | |
234 | u8 init_called:1; | |
235 | u8 experimental:1; | |
236 | } flags; | |
237 | }; | |
238 | ||
239 | struct ibm_init_struct { | |
240 | char param[32]; | |
241 | ||
242 | int (*init) (struct ibm_init_struct *); | |
243 | struct ibm_struct *data; | |
244 | }; | |
245 | ||
246 | static struct { | |
247 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
248 | u32 bay_status:1; | |
249 | u32 bay_eject:1; | |
250 | u32 bay_status2:1; | |
251 | u32 bay_eject2:1; | |
252 | #endif | |
253 | u32 bluetooth:1; | |
254 | u32 hotkey:1; | |
255 | u32 hotkey_mask:1; | |
256 | u32 hotkey_wlsw:1; | |
6c231bd5 | 257 | u32 hotkey_tablet:1; |
0c78039f HMH |
258 | u32 light:1; |
259 | u32 light_status:1; | |
260 | u32 bright_16levels:1; | |
b5972796 | 261 | u32 bright_acpimode:1; |
0c78039f HMH |
262 | u32 wan:1; |
263 | u32 fan_ctrl_status_undef:1; | |
264 | u32 input_device_registered:1; | |
265 | u32 platform_drv_registered:1; | |
266 | u32 platform_drv_attrs_registered:1; | |
267 | u32 sensors_pdrv_registered:1; | |
268 | u32 sensors_pdrv_attrs_registered:1; | |
269 | u32 sensors_pdev_attrs_registered:1; | |
270 | u32 hotkey_poll_active:1; | |
271 | } tp_features; | |
272 | ||
92889022 HMH |
273 | static struct { |
274 | u16 hotkey_mask_ff:1; | |
2d5e94d7 | 275 | u16 bright_cmos_ec_unsync:1; |
92889022 HMH |
276 | } tp_warned; |
277 | ||
0c78039f HMH |
278 | struct thinkpad_id_data { |
279 | unsigned int vendor; /* ThinkPad vendor: | |
280 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
281 | ||
282 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
283 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
284 | ||
285 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
286 | u16 ec_model; | |
287 | ||
8c74adbc HMH |
288 | char *model_str; /* ThinkPad T43 */ |
289 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 290 | }; |
0c78039f HMH |
291 | static struct thinkpad_id_data thinkpad_id; |
292 | ||
8fef502e HMH |
293 | static enum { |
294 | TPACPI_LIFE_INIT = 0, | |
295 | TPACPI_LIFE_RUNNING, | |
296 | TPACPI_LIFE_EXITING, | |
297 | } tpacpi_lifecycle; | |
298 | ||
b21a15f6 HMH |
299 | static int experimental; |
300 | static u32 dbg_level; | |
301 | ||
e0e3c061 HMH |
302 | static struct workqueue_struct *tpacpi_wq; |
303 | ||
4fa6811b HMH |
304 | /* Special LED class that can defer work */ |
305 | struct tpacpi_led_classdev { | |
306 | struct led_classdev led_classdev; | |
307 | struct work_struct work; | |
308 | enum led_brightness new_brightness; | |
af116101 | 309 | unsigned int led; |
4fa6811b HMH |
310 | }; |
311 | ||
a73f3091 HMH |
312 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
313 | static int dbg_wlswemul; | |
314 | static int tpacpi_wlsw_emulstate; | |
315 | static int dbg_bluetoothemul; | |
316 | static int tpacpi_bluetooth_emulstate; | |
317 | static int dbg_wwanemul; | |
318 | static int tpacpi_wwan_emulstate; | |
319 | #endif | |
320 | ||
321 | ||
56b6aeb0 HMH |
322 | /**************************************************************************** |
323 | **************************************************************************** | |
324 | * | |
325 | * ACPI Helpers and device model | |
326 | * | |
327 | **************************************************************************** | |
328 | ****************************************************************************/ | |
329 | ||
330 | /************************************************************************* | |
331 | * ACPI basic handles | |
332 | */ | |
1da177e4 | 333 | |
94954cc6 | 334 | static acpi_handle root_handle; |
1da177e4 | 335 | |
e0c7dfe7 | 336 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
337 | static acpi_handle object##_handle; \ |
338 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 339 | static char *object##_path; \ |
1da177e4 LT |
340 | static char *object##_paths[] = { paths } |
341 | ||
e0c7dfe7 | 342 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
343 | "\\_SB.PCI.ISA.EC", /* 570 */ |
344 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
345 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
346 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
347 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
348 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 349 | ); |
78f81cc4 | 350 | |
e0c7dfe7 HMH |
351 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
352 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 353 | |
35ff8b9f HMH |
354 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
355 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
356 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
357 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 358 | ); /* all others */ |
78f81cc4 | 359 | |
e0c7dfe7 | 360 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
361 | "^HKEY", /* R30, R31 */ |
362 | "HKEY", /* all others */ | |
56b6aeb0 | 363 | ); /* 570 */ |
78f81cc4 | 364 | |
d7c1d17d HMH |
365 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
366 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
367 | "\\_SB.PCI0.VID0", /* 770e */ | |
368 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
369 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
370 | ); /* R30, R31 */ | |
371 | ||
78f81cc4 | 372 | |
56b6aeb0 HMH |
373 | /************************************************************************* |
374 | * ACPI helpers | |
a8b7a662 HMH |
375 | */ |
376 | ||
1da177e4 LT |
377 | static int acpi_evalf(acpi_handle handle, |
378 | void *res, char *method, char *fmt, ...) | |
379 | { | |
380 | char *fmt0 = fmt; | |
78f81cc4 | 381 | struct acpi_object_list params; |
e0c7dfe7 | 382 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
383 | struct acpi_buffer result, *resultp; |
384 | union acpi_object out_obj; | |
385 | acpi_status status; | |
386 | va_list ap; | |
387 | char res_type; | |
388 | int success; | |
389 | int quiet; | |
1da177e4 LT |
390 | |
391 | if (!*fmt) { | |
e0c7dfe7 | 392 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
393 | return 0; |
394 | } | |
395 | ||
396 | if (*fmt == 'q') { | |
397 | quiet = 1; | |
398 | fmt++; | |
399 | } else | |
400 | quiet = 0; | |
401 | ||
402 | res_type = *(fmt++); | |
403 | ||
404 | params.count = 0; | |
405 | params.pointer = &in_objs[0]; | |
406 | ||
407 | va_start(ap, fmt); | |
408 | while (*fmt) { | |
409 | char c = *(fmt++); | |
410 | switch (c) { | |
411 | case 'd': /* int */ | |
412 | in_objs[params.count].integer.value = va_arg(ap, int); | |
413 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
414 | break; | |
78f81cc4 | 415 | /* add more types as needed */ |
1da177e4 | 416 | default: |
e0c7dfe7 | 417 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
418 | "with invalid format character '%c'\n", c); |
419 | return 0; | |
420 | } | |
421 | } | |
422 | va_end(ap); | |
423 | ||
78f81cc4 BD |
424 | if (res_type != 'v') { |
425 | result.length = sizeof(out_obj); | |
426 | result.pointer = &out_obj; | |
427 | resultp = &result; | |
428 | } else | |
429 | resultp = NULL; | |
1da177e4 | 430 | |
78f81cc4 | 431 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
432 | |
433 | switch (res_type) { | |
78f81cc4 | 434 | case 'd': /* int */ |
1da177e4 LT |
435 | if (res) |
436 | *(int *)res = out_obj.integer.value; | |
437 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
438 | break; | |
78f81cc4 | 439 | case 'v': /* void */ |
1da177e4 LT |
440 | success = status == AE_OK; |
441 | break; | |
78f81cc4 | 442 | /* add more types as needed */ |
1da177e4 | 443 | default: |
e0c7dfe7 | 444 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
445 | "with invalid format character '%c'\n", res_type); |
446 | return 0; | |
447 | } | |
448 | ||
56b6aeb0 | 449 | if (!success && !quiet) |
e0c7dfe7 | 450 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
451 | method, fmt0, status); |
452 | ||
453 | return success; | |
454 | } | |
455 | ||
35ff8b9f | 456 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
457 | { |
458 | int v; | |
459 | ||
460 | if (ecrd_handle) { | |
461 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
462 | return 0; | |
463 | *p = v; | |
464 | } else { | |
465 | if (ec_read(i, p) < 0) | |
466 | return 0; | |
467 | } | |
468 | ||
469 | return 1; | |
470 | } | |
471 | ||
472 | static int acpi_ec_write(int i, u8 v) | |
473 | { | |
474 | if (ecwr_handle) { | |
475 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
476 | return 0; | |
477 | } else { | |
478 | if (ec_write(i, v) < 0) | |
479 | return 0; | |
480 | } | |
481 | ||
482 | return 1; | |
483 | } | |
484 | ||
013c40e4 | 485 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
486 | static int _sta(acpi_handle handle) |
487 | { | |
488 | int status; | |
489 | ||
490 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
491 | status = 0; | |
492 | ||
493 | return status; | |
494 | } | |
013c40e4 | 495 | #endif |
56b6aeb0 | 496 | |
c9bea99c HMH |
497 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
498 | { | |
499 | if (!cmos_handle) | |
500 | return -ENXIO; | |
501 | ||
502 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
503 | return -EIO; | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
56b6aeb0 HMH |
508 | /************************************************************************* |
509 | * ACPI device model | |
510 | */ | |
511 | ||
35ff8b9f HMH |
512 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
513 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
514 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
515 | ||
8d376cd6 | 516 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
517 | acpi_handle *handle, acpi_handle parent, |
518 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
519 | { |
520 | int i; | |
521 | acpi_status status; | |
522 | ||
5ae930e6 HMH |
523 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
524 | name); | |
525 | ||
56b6aeb0 HMH |
526 | for (i = 0; i < num_paths; i++) { |
527 | status = acpi_get_handle(parent, paths[i], handle); | |
528 | if (ACPI_SUCCESS(status)) { | |
529 | *path = paths[i]; | |
5ae930e6 HMH |
530 | dbg_printk(TPACPI_DBG_INIT, |
531 | "Found ACPI handle %s for %s\n", | |
532 | *path, name); | |
56b6aeb0 HMH |
533 | return; |
534 | } | |
535 | } | |
536 | ||
5ae930e6 HMH |
537 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
538 | name); | |
56b6aeb0 HMH |
539 | *handle = NULL; |
540 | } | |
541 | ||
8d376cd6 | 542 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
543 | { |
544 | struct ibm_struct *ibm = data; | |
545 | ||
8fef502e HMH |
546 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
547 | return; | |
548 | ||
8d376cd6 | 549 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
550 | return; |
551 | ||
8d376cd6 | 552 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
553 | } |
554 | ||
8d376cd6 | 555 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
556 | { |
557 | acpi_status status; | |
5ae930e6 | 558 | int rc; |
56b6aeb0 | 559 | |
8d376cd6 HMH |
560 | BUG_ON(!ibm->acpi); |
561 | ||
562 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
563 | return 0; |
564 | ||
5ae930e6 | 565 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
566 | "setting up ACPI notify for %s\n", ibm->name); |
567 | ||
5ae930e6 HMH |
568 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
569 | if (rc < 0) { | |
e0c7dfe7 | 570 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 571 | ibm->name, rc); |
56b6aeb0 HMH |
572 | return -ENODEV; |
573 | } | |
574 | ||
db89b4f0 | 575 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 576 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 577 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 578 | ibm->name); |
56b6aeb0 | 579 | |
8d376cd6 HMH |
580 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
581 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
582 | if (ACPI_FAILURE(status)) { |
583 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
584 | printk(TPACPI_NOTICE |
585 | "another device driver is already " | |
586 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 587 | } else { |
35ff8b9f HMH |
588 | printk(TPACPI_ERR |
589 | "acpi_install_notify_handler(%s) failed: %d\n", | |
590 | ibm->name, status); | |
56b6aeb0 HMH |
591 | } |
592 | return -ENODEV; | |
593 | } | |
8d376cd6 | 594 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
595 | return 0; |
596 | } | |
597 | ||
8d376cd6 | 598 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
599 | { |
600 | return 0; | |
601 | } | |
602 | ||
6700121b | 603 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 604 | { |
5ae930e6 | 605 | int rc; |
56b6aeb0 | 606 | |
fe08bc4b HMH |
607 | dbg_printk(TPACPI_DBG_INIT, |
608 | "registering %s as an ACPI driver\n", ibm->name); | |
609 | ||
8d376cd6 HMH |
610 | BUG_ON(!ibm->acpi); |
611 | ||
612 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
613 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
614 | printk(TPACPI_ERR |
615 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 616 | return -ENOMEM; |
56b6aeb0 HMH |
617 | } |
618 | ||
e0c7dfe7 | 619 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 620 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 621 | |
8d376cd6 | 622 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 623 | |
5ae930e6 HMH |
624 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
625 | if (rc < 0) { | |
e0c7dfe7 | 626 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 627 | ibm->name, rc); |
8d376cd6 HMH |
628 | kfree(ibm->acpi->driver); |
629 | ibm->acpi->driver = NULL; | |
5ae930e6 | 630 | } else if (!rc) |
8d376cd6 | 631 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 632 | |
5ae930e6 | 633 | return rc; |
56b6aeb0 HMH |
634 | } |
635 | ||
636 | ||
637 | /**************************************************************************** | |
638 | **************************************************************************** | |
639 | * | |
640 | * Procfs Helpers | |
641 | * | |
642 | **************************************************************************** | |
643 | ****************************************************************************/ | |
644 | ||
8d376cd6 HMH |
645 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
646 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
647 | { |
648 | struct ibm_struct *ibm = data; | |
649 | int len; | |
650 | ||
651 | if (!ibm || !ibm->read) | |
652 | return -EINVAL; | |
653 | ||
654 | len = ibm->read(page); | |
655 | if (len < 0) | |
656 | return len; | |
657 | ||
658 | if (len <= off + count) | |
659 | *eof = 1; | |
660 | *start = page + off; | |
661 | len -= off; | |
662 | if (len > count) | |
663 | len = count; | |
664 | if (len < 0) | |
665 | len = 0; | |
666 | ||
667 | return len; | |
668 | } | |
669 | ||
8d376cd6 | 670 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 671 | const char __user *userbuf, |
8d376cd6 | 672 | unsigned long count, void *data) |
56b6aeb0 HMH |
673 | { |
674 | struct ibm_struct *ibm = data; | |
675 | char *kernbuf; | |
676 | int ret; | |
677 | ||
678 | if (!ibm || !ibm->write) | |
679 | return -EINVAL; | |
680 | ||
681 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
682 | if (!kernbuf) | |
683 | return -ENOMEM; | |
1da177e4 | 684 | |
56b6aeb0 HMH |
685 | if (copy_from_user(kernbuf, userbuf, count)) { |
686 | kfree(kernbuf); | |
687 | return -EFAULT; | |
688 | } | |
1da177e4 | 689 | |
56b6aeb0 HMH |
690 | kernbuf[count] = 0; |
691 | strcat(kernbuf, ","); | |
692 | ret = ibm->write(kernbuf); | |
693 | if (ret == 0) | |
694 | ret = count; | |
1da177e4 | 695 | |
56b6aeb0 HMH |
696 | kfree(kernbuf); |
697 | ||
698 | return ret; | |
1da177e4 LT |
699 | } |
700 | ||
701 | static char *next_cmd(char **cmds) | |
702 | { | |
703 | char *start = *cmds; | |
704 | char *end; | |
705 | ||
706 | while ((end = strchr(start, ',')) && end == start) | |
707 | start = end + 1; | |
708 | ||
709 | if (!end) | |
710 | return NULL; | |
711 | ||
712 | *end = 0; | |
713 | *cmds = end + 1; | |
714 | return start; | |
715 | } | |
716 | ||
56b6aeb0 | 717 | |
54ae1501 HMH |
718 | /**************************************************************************** |
719 | **************************************************************************** | |
720 | * | |
7f5d1cd6 | 721 | * Device model: input, hwmon and platform |
54ae1501 HMH |
722 | * |
723 | **************************************************************************** | |
724 | ****************************************************************************/ | |
725 | ||
94954cc6 | 726 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 727 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 728 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 729 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 730 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 731 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 732 | |
083f1760 HMH |
733 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
734 | pm_message_t state) | |
735 | { | |
736 | struct ibm_struct *ibm, *itmp; | |
737 | ||
738 | list_for_each_entry_safe(ibm, itmp, | |
739 | &tpacpi_all_drivers, | |
740 | all_drivers) { | |
741 | if (ibm->suspend) | |
742 | (ibm->suspend)(state); | |
743 | } | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
e295e850 HMH |
748 | static int tpacpi_resume_handler(struct platform_device *pdev) |
749 | { | |
750 | struct ibm_struct *ibm, *itmp; | |
751 | ||
752 | list_for_each_entry_safe(ibm, itmp, | |
753 | &tpacpi_all_drivers, | |
754 | all_drivers) { | |
755 | if (ibm->resume) | |
756 | (ibm->resume)(); | |
757 | } | |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
54ae1501 HMH |
762 | static struct platform_driver tpacpi_pdriver = { |
763 | .driver = { | |
e0c7dfe7 | 764 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
765 | .owner = THIS_MODULE, |
766 | }, | |
083f1760 | 767 | .suspend = tpacpi_suspend_handler, |
e295e850 | 768 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
769 | }; |
770 | ||
7fd40029 HMH |
771 | static struct platform_driver tpacpi_hwmon_pdriver = { |
772 | .driver = { | |
e0c7dfe7 | 773 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
774 | .owner = THIS_MODULE, |
775 | }, | |
776 | }; | |
54ae1501 | 777 | |
176750d6 | 778 | /************************************************************************* |
b21a15f6 | 779 | * sysfs support helpers |
176750d6 HMH |
780 | */ |
781 | ||
b21a15f6 HMH |
782 | struct attribute_set { |
783 | unsigned int members, max_members; | |
784 | struct attribute_group group; | |
176750d6 HMH |
785 | }; |
786 | ||
7252374a HMH |
787 | struct attribute_set_obj { |
788 | struct attribute_set s; | |
789 | struct attribute *a; | |
790 | } __attribute__((packed)); | |
791 | ||
792 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 793 | const char *name) |
7252374a HMH |
794 | { |
795 | struct attribute_set_obj *sobj; | |
796 | ||
797 | if (max_members == 0) | |
798 | return NULL; | |
799 | ||
800 | /* Allocates space for implicit NULL at the end too */ | |
801 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
802 | max_members * sizeof(struct attribute *), | |
803 | GFP_KERNEL); | |
804 | if (!sobj) | |
805 | return NULL; | |
806 | sobj->s.max_members = max_members; | |
807 | sobj->s.group.attrs = &sobj->a; | |
808 | sobj->s.group.name = name; | |
809 | ||
810 | return &sobj->s; | |
811 | } | |
812 | ||
f74a27d4 HMH |
813 | #define destroy_attr_set(_set) \ |
814 | kfree(_set); | |
815 | ||
7252374a | 816 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 817 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
818 | { |
819 | if (!s || !attr) | |
820 | return -EINVAL; | |
821 | ||
822 | if (s->members >= s->max_members) | |
823 | return -ENOMEM; | |
824 | ||
825 | s->group.attrs[s->members] = attr; | |
826 | s->members++; | |
827 | ||
828 | return 0; | |
829 | } | |
830 | ||
35ff8b9f | 831 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
832 | struct attribute **attr, |
833 | unsigned int count) | |
834 | { | |
835 | int i, res; | |
836 | ||
837 | for (i = 0; i < count; i++) { | |
838 | res = add_to_attr_set(s, attr[i]); | |
839 | if (res) | |
840 | return res; | |
841 | } | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
35ff8b9f | 846 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
847 | { |
848 | sysfs_remove_group(kobj, &s->group); | |
849 | destroy_attr_set(s); | |
850 | } | |
851 | ||
f74a27d4 HMH |
852 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
853 | sysfs_create_group(_kobj, &_attr_set->group) | |
854 | ||
7252374a HMH |
855 | static int parse_strtoul(const char *buf, |
856 | unsigned long max, unsigned long *value) | |
857 | { | |
858 | char *endp; | |
859 | ||
32afbf07 HMH |
860 | while (*buf && isspace(*buf)) |
861 | buf++; | |
7252374a HMH |
862 | *value = simple_strtoul(buf, &endp, 0); |
863 | while (*endp && isspace(*endp)) | |
864 | endp++; | |
865 | if (*endp || *value > max) | |
866 | return -EINVAL; | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
d64c81c4 HMH |
871 | static void tpacpi_disable_brightness_delay(void) |
872 | { | |
873 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
874 | printk(TPACPI_NOTICE | |
875 | "ACPI backlight control delay disabled\n"); | |
876 | } | |
877 | ||
b5972796 HMH |
878 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
879 | { | |
880 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
881 | union acpi_object *obj; | |
882 | int rc; | |
883 | ||
884 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
885 | obj = (union acpi_object *)buffer.pointer; | |
886 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
887 | printk(TPACPI_ERR "Unknown _BCL data, " | |
888 | "please report this to %s\n", TPACPI_MAIL); | |
889 | rc = 0; | |
890 | } else { | |
891 | rc = obj->package.count; | |
892 | } | |
893 | } else { | |
894 | return 0; | |
895 | } | |
896 | ||
897 | kfree(buffer.pointer); | |
898 | return rc; | |
899 | } | |
900 | ||
901 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
902 | u32 lvl, void *context, void **rv) | |
903 | { | |
904 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
905 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
906 | ||
907 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
908 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
909 | BUG_ON(!rv || !*rv); | |
910 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
911 | return AE_CTRL_TERMINATE; | |
912 | } else { | |
913 | return AE_OK; | |
914 | } | |
915 | } | |
916 | ||
917 | /* | |
918 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
919 | */ | |
920 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
921 | { | |
922 | int status; | |
923 | int bcl_levels = 0; | |
924 | void *bcl_ptr = &bcl_levels; | |
925 | ||
926 | if (!vid_handle) { | |
927 | TPACPI_ACPIHANDLE_INIT(vid); | |
928 | } | |
929 | if (!vid_handle) | |
930 | return 0; | |
931 | ||
932 | /* | |
933 | * Search for a _BCL method, and execute it. This is safe on all | |
934 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
935 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
936 | * about calling the _BCL method in an enabled video device, any | |
937 | * will do for our purposes. | |
938 | */ | |
939 | ||
940 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
941 | tpacpi_acpi_walk_find_bcl, NULL, | |
942 | &bcl_ptr); | |
943 | ||
944 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
945 | tp_features.bright_acpimode = 1; | |
946 | return (bcl_levels - 2); | |
947 | } | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
0e74dc26 HMH |
952 | static int __init tpacpi_new_rfkill(const unsigned int id, |
953 | struct rfkill **rfk, | |
954 | const enum rfkill_type rfktype, | |
955 | const char *name, | |
956 | int (*toggle_radio)(void *, enum rfkill_state), | |
957 | int (*get_state)(void *, enum rfkill_state *)) | |
958 | { | |
959 | int res; | |
960 | enum rfkill_state initial_state; | |
961 | ||
962 | *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); | |
963 | if (!*rfk) { | |
964 | printk(TPACPI_ERR | |
965 | "failed to allocate memory for rfkill class\n"); | |
966 | return -ENOMEM; | |
967 | } | |
968 | ||
969 | (*rfk)->name = name; | |
970 | (*rfk)->get_state = get_state; | |
971 | (*rfk)->toggle_radio = toggle_radio; | |
972 | ||
973 | if (!get_state(NULL, &initial_state)) | |
974 | (*rfk)->state = initial_state; | |
975 | ||
976 | res = rfkill_register(*rfk); | |
977 | if (res < 0) { | |
978 | printk(TPACPI_ERR | |
979 | "failed to register %s rfkill switch: %d\n", | |
980 | name, res); | |
981 | rfkill_free(*rfk); | |
982 | *rfk = NULL; | |
983 | return res; | |
984 | } | |
985 | ||
986 | return 0; | |
987 | } | |
988 | ||
56b6aeb0 | 989 | /************************************************************************* |
b21a15f6 | 990 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
991 | */ |
992 | ||
b21a15f6 HMH |
993 | /* interface_version --------------------------------------------------- */ |
994 | static ssize_t tpacpi_driver_interface_version_show( | |
995 | struct device_driver *drv, | |
996 | char *buf) | |
1da177e4 | 997 | { |
b21a15f6 HMH |
998 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
999 | } | |
1000 | ||
1001 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1002 | tpacpi_driver_interface_version_show, NULL); | |
1003 | ||
1004 | /* debug_level --------------------------------------------------------- */ | |
1005 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1006 | char *buf) | |
1007 | { | |
1008 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1009 | } | |
1010 | ||
1011 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1012 | const char *buf, size_t count) | |
1013 | { | |
1014 | unsigned long t; | |
1015 | ||
1016 | if (parse_strtoul(buf, 0xffff, &t)) | |
1017 | return -EINVAL; | |
1018 | ||
1019 | dbg_level = t; | |
1020 | ||
1021 | return count; | |
1022 | } | |
1023 | ||
1024 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1025 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1026 | ||
1027 | /* version ------------------------------------------------------------- */ | |
1028 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1029 | char *buf) | |
1030 | { | |
35ff8b9f HMH |
1031 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1032 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1033 | } |
1034 | ||
1035 | static DRIVER_ATTR(version, S_IRUGO, | |
1036 | tpacpi_driver_version_show, NULL); | |
1037 | ||
1038 | /* --------------------------------------------------------------------- */ | |
1039 | ||
a73f3091 HMH |
1040 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1041 | ||
1042 | static void tpacpi_send_radiosw_update(void); | |
1043 | ||
1044 | /* wlsw_emulstate ------------------------------------------------------ */ | |
1045 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1046 | char *buf) | |
1047 | { | |
1048 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1049 | } | |
1050 | ||
1051 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1052 | const char *buf, size_t count) | |
1053 | { | |
1054 | unsigned long t; | |
1055 | ||
1056 | if (parse_strtoul(buf, 1, &t)) | |
1057 | return -EINVAL; | |
1058 | ||
1059 | if (tpacpi_wlsw_emulstate != t) { | |
1060 | tpacpi_wlsw_emulstate = !!t; | |
1061 | tpacpi_send_radiosw_update(); | |
1062 | } else | |
1063 | tpacpi_wlsw_emulstate = !!t; | |
1064 | ||
1065 | return count; | |
1066 | } | |
1067 | ||
1068 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1069 | tpacpi_driver_wlsw_emulstate_show, | |
1070 | tpacpi_driver_wlsw_emulstate_store); | |
1071 | ||
1072 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1073 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1074 | struct device_driver *drv, | |
1075 | char *buf) | |
1076 | { | |
1077 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1078 | } | |
1079 | ||
1080 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1081 | struct device_driver *drv, | |
1082 | const char *buf, size_t count) | |
1083 | { | |
1084 | unsigned long t; | |
1085 | ||
1086 | if (parse_strtoul(buf, 1, &t)) | |
1087 | return -EINVAL; | |
1088 | ||
1089 | tpacpi_bluetooth_emulstate = !!t; | |
1090 | ||
1091 | return count; | |
1092 | } | |
1093 | ||
1094 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1095 | tpacpi_driver_bluetooth_emulstate_show, | |
1096 | tpacpi_driver_bluetooth_emulstate_store); | |
1097 | ||
1098 | /* wwan_emulstate ------------------------------------------------- */ | |
1099 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1100 | struct device_driver *drv, | |
1101 | char *buf) | |
1102 | { | |
1103 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1104 | } | |
1105 | ||
1106 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1107 | struct device_driver *drv, | |
1108 | const char *buf, size_t count) | |
1109 | { | |
1110 | unsigned long t; | |
1111 | ||
1112 | if (parse_strtoul(buf, 1, &t)) | |
1113 | return -EINVAL; | |
1114 | ||
1115 | tpacpi_wwan_emulstate = !!t; | |
1116 | ||
1117 | return count; | |
1118 | } | |
1119 | ||
1120 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1121 | tpacpi_driver_wwan_emulstate_show, | |
1122 | tpacpi_driver_wwan_emulstate_store); | |
1123 | ||
1124 | #endif | |
1125 | ||
1126 | /* --------------------------------------------------------------------- */ | |
1127 | ||
35ff8b9f | 1128 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1129 | &driver_attr_debug_level, &driver_attr_version, |
1130 | &driver_attr_interface_version, | |
1131 | }; | |
1132 | ||
1133 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1134 | { | |
1135 | int i, res; | |
1136 | ||
1137 | i = 0; | |
1138 | res = 0; | |
1139 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1140 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1141 | i++; | |
1142 | } | |
1143 | ||
a73f3091 HMH |
1144 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1145 | if (!res && dbg_wlswemul) | |
1146 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1147 | if (!res && dbg_bluetoothemul) | |
1148 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1149 | if (!res && dbg_wwanemul) | |
1150 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
1151 | #endif | |
1152 | ||
b21a15f6 HMH |
1153 | return res; |
1154 | } | |
1155 | ||
1156 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1157 | { | |
1158 | int i; | |
1159 | ||
35ff8b9f | 1160 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1161 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1162 | |
1163 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1164 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1165 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1166 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
1167 | #endif | |
b21a15f6 HMH |
1168 | } |
1169 | ||
1170 | /**************************************************************************** | |
1171 | **************************************************************************** | |
1172 | * | |
1173 | * Subdrivers | |
1174 | * | |
1175 | **************************************************************************** | |
1176 | ****************************************************************************/ | |
1177 | ||
1178 | /************************************************************************* | |
1179 | * thinkpad-acpi init subdriver | |
1180 | */ | |
1181 | ||
1182 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1183 | { | |
e0c7dfe7 HMH |
1184 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1185 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1186 | |
e0c7dfe7 | 1187 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1188 | (thinkpad_id.bios_version_str) ? |
1189 | thinkpad_id.bios_version_str : "unknown", | |
1190 | (thinkpad_id.ec_version_str) ? | |
1191 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1192 | |
1193 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1194 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1195 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1196 | "IBM" : ((thinkpad_id.vendor == | |
1197 | PCI_VENDOR_ID_LENOVO) ? | |
1198 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1199 | thinkpad_id.model_str, |
1200 | (thinkpad_id.nummodel_str) ? | |
1201 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1202 | |
1da177e4 LT |
1203 | return 0; |
1204 | } | |
1205 | ||
643f12db | 1206 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1207 | { |
1208 | int len = 0; | |
1209 | ||
e0c7dfe7 HMH |
1210 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1211 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1212 | |
1213 | return len; | |
1214 | } | |
1215 | ||
a5763f22 HMH |
1216 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1217 | .name = "driver", | |
1218 | .read = thinkpad_acpi_driver_read, | |
1219 | }; | |
1220 | ||
56b6aeb0 HMH |
1221 | /************************************************************************* |
1222 | * Hotkey subdriver | |
1223 | */ | |
1224 | ||
f74a27d4 HMH |
1225 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1226 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1227 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1228 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1229 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1230 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1231 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1232 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1233 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1234 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1235 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1236 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1237 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1238 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1239 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1240 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1241 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1242 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1243 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1244 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1245 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1246 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1247 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1248 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1249 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1250 | }; | |
1251 | ||
01e88f25 HMH |
1252 | enum { /* Keys available through NVRAM polling */ |
1253 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1254 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1255 | }; | |
1256 | ||
1257 | enum { /* Positions of some of the keys in hotkey masks */ | |
1258 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1259 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1260 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1261 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1262 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1263 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1264 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1265 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1266 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1267 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1268 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1269 | }; | |
1270 | ||
1271 | enum { /* NVRAM to ACPI HKEY group map */ | |
1272 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1273 | TP_ACPI_HKEY_ZOOM_MASK | | |
1274 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1275 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1276 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1277 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1278 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1279 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1280 | TP_ACPI_HKEY_MUTE_MASK, | |
1281 | }; | |
1282 | ||
1283 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1284 | struct tp_nvram_state { | |
1285 | u16 thinkpad_toggle:1; | |
1286 | u16 zoom_toggle:1; | |
1287 | u16 display_toggle:1; | |
1288 | u16 thinklight_toggle:1; | |
1289 | u16 hibernate_toggle:1; | |
1290 | u16 displayexp_toggle:1; | |
1291 | u16 display_state:1; | |
1292 | u16 brightness_toggle:1; | |
1293 | u16 volume_toggle:1; | |
1294 | u16 mute:1; | |
1295 | ||
1296 | u8 brightness_level; | |
1297 | u8 volume_level; | |
1298 | }; | |
1299 | ||
1300 | static struct task_struct *tpacpi_hotkey_task; | |
1301 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1302 | static int hotkey_poll_freq = 10; /* Hz */ | |
1303 | static struct mutex hotkey_thread_mutex; | |
1304 | static struct mutex hotkey_thread_data_mutex; | |
1305 | static unsigned int hotkey_config_change; | |
1306 | ||
1307 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1308 | ||
1309 | #define hotkey_source_mask 0U | |
1310 | ||
1311 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1312 | ||
f74a27d4 HMH |
1313 | static struct mutex hotkey_mutex; |
1314 | ||
a713b4d7 HMH |
1315 | static enum { /* Reasons for waking up */ |
1316 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1317 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1318 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1319 | } hotkey_wakeup_reason; | |
1320 | ||
1321 | static int hotkey_autosleep_ack; | |
1322 | ||
78f81cc4 | 1323 | static int hotkey_orig_status; |
ae92bd17 | 1324 | static u32 hotkey_orig_mask; |
9b010de5 | 1325 | static u32 hotkey_all_mask; |
6a38abbf | 1326 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1327 | static u32 hotkey_mask; |
6a38abbf | 1328 | |
b21a15f6 HMH |
1329 | static unsigned int hotkey_report_mode; |
1330 | ||
edf0e0e5 | 1331 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1332 | |
94954cc6 | 1333 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1334 | |
01e88f25 HMH |
1335 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1336 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1337 | do { \ |
1338 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1339 | hotkey_config_change++; \ | |
1340 | } while (0); | |
01e88f25 HMH |
1341 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1342 | mutex_unlock(&hotkey_thread_data_mutex); | |
1343 | #else | |
1344 | #define HOTKEY_CONFIG_CRITICAL_START | |
1345 | #define HOTKEY_CONFIG_CRITICAL_END | |
1346 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1347 | ||
6c231bd5 HMH |
1348 | /* HKEY.MHKG() return bits */ |
1349 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1350 | ||
74941a69 HMH |
1351 | static int hotkey_get_wlsw(int *status) |
1352 | { | |
a73f3091 HMH |
1353 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1354 | if (dbg_wlswemul) { | |
1355 | *status = !!tpacpi_wlsw_emulstate; | |
1356 | return 0; | |
1357 | } | |
1358 | #endif | |
74941a69 HMH |
1359 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) |
1360 | return -EIO; | |
1361 | return 0; | |
1362 | } | |
1363 | ||
6c231bd5 HMH |
1364 | static int hotkey_get_tablet_mode(int *status) |
1365 | { | |
1366 | int s; | |
1367 | ||
1368 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1369 | return -EIO; | |
1370 | ||
cee47f5a HMH |
1371 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1372 | return 0; | |
6c231bd5 HMH |
1373 | } |
1374 | ||
b2c985e7 HMH |
1375 | /* |
1376 | * Call with hotkey_mutex held | |
1377 | */ | |
1378 | static int hotkey_mask_get(void) | |
1379 | { | |
01e88f25 HMH |
1380 | u32 m = 0; |
1381 | ||
b2c985e7 | 1382 | if (tp_features.hotkey_mask) { |
01e88f25 | 1383 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1384 | return -EIO; |
1385 | } | |
01e88f25 | 1386 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1387 | |
1388 | return 0; | |
1389 | } | |
1390 | ||
1391 | /* | |
1392 | * Call with hotkey_mutex held | |
1393 | */ | |
1394 | static int hotkey_mask_set(u32 mask) | |
1395 | { | |
1396 | int i; | |
1397 | int rc = 0; | |
1398 | ||
1399 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1400 | if (!tp_warned.hotkey_mask_ff && |
1401 | (mask == 0xffff || mask == 0xffffff || | |
1402 | mask == 0xffffffff)) { | |
1403 | tp_warned.hotkey_mask_ff = 1; | |
1404 | printk(TPACPI_NOTICE | |
1405 | "setting the hotkey mask to 0x%08x is likely " | |
1406 | "not the best way to go about it\n", mask); | |
1407 | printk(TPACPI_NOTICE | |
1408 | "please consider using the driver defaults, " | |
1409 | "and refer to up-to-date thinkpad-acpi " | |
1410 | "documentation\n"); | |
1411 | } | |
1412 | ||
01e88f25 | 1413 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1414 | for (i = 0; i < 32; i++) { |
1415 | u32 m = 1 << i; | |
01e88f25 HMH |
1416 | /* enable in firmware mask only keys not in NVRAM |
1417 | * mode, but enable the key in the cached hotkey_mask | |
1418 | * regardless of mode, or the key will end up | |
1419 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1420 | if (!acpi_evalf(hkey_handle, |
1421 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1422 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1423 | rc = -EIO; |
1424 | break; | |
1425 | } else { | |
1426 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1427 | } | |
1428 | } | |
01e88f25 | 1429 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1430 | |
1431 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1432 | if (!hotkey_mask_get() && !rc && |
1433 | (hotkey_mask & ~hotkey_source_mask) != | |
1434 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1435 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1436 | "requested hot key mask 0x%08x, but " |
1437 | "firmware forced it to 0x%08x\n", | |
1438 | mask, hotkey_mask); | |
1439 | } | |
01e88f25 HMH |
1440 | } else { |
1441 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1442 | HOTKEY_CONFIG_CRITICAL_START | |
1443 | hotkey_mask = mask & hotkey_source_mask; | |
1444 | HOTKEY_CONFIG_CRITICAL_END | |
1445 | hotkey_mask_get(); | |
1446 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1447 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1448 | "requested hot key mask 0x%08x, " |
1449 | "forced to 0x%08x (NVRAM poll mask is " | |
1450 | "0x%08x): no firmware mask support\n", | |
1451 | mask, hotkey_mask, hotkey_source_mask); | |
1452 | } | |
1453 | #else | |
1454 | hotkey_mask_get(); | |
1455 | rc = -ENXIO; | |
1456 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1457 | } |
1458 | ||
1459 | return rc; | |
1460 | } | |
1461 | ||
1462 | static int hotkey_status_get(int *status) | |
1463 | { | |
1464 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1465 | return -EIO; | |
1466 | ||
1467 | return 0; | |
1468 | } | |
1469 | ||
1470 | static int hotkey_status_set(int status) | |
1471 | { | |
1472 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1473 | return -EIO; | |
1474 | ||
1475 | return 0; | |
1476 | } | |
1477 | ||
6c231bd5 | 1478 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1479 | { |
6c231bd5 | 1480 | int state; |
b3ec6f91 | 1481 | |
6c231bd5 HMH |
1482 | if (tp_features.hotkey_tablet && |
1483 | !hotkey_get_tablet_mode(&state)) { | |
1484 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1485 | |
6c231bd5 HMH |
1486 | input_report_switch(tpacpi_inputdev, |
1487 | SW_TABLET_MODE, !!state); | |
1488 | input_sync(tpacpi_inputdev); | |
1489 | ||
1490 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1491 | } | |
b3ec6f91 HMH |
1492 | } |
1493 | ||
b7c8c200 HMH |
1494 | static void tpacpi_input_send_key(unsigned int scancode) |
1495 | { | |
1496 | unsigned int keycode; | |
1497 | ||
1498 | keycode = hotkey_keycode_map[scancode]; | |
1499 | ||
1500 | if (keycode != KEY_RESERVED) { | |
1501 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1502 | ||
1503 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1504 | if (keycode == KEY_UNKNOWN) | |
1505 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1506 | scancode); | |
1507 | input_sync(tpacpi_inputdev); | |
1508 | ||
1509 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1510 | if (keycode == KEY_UNKNOWN) | |
1511 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1512 | scancode); | |
1513 | input_sync(tpacpi_inputdev); | |
1514 | ||
1515 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1516 | } | |
1517 | } | |
1518 | ||
01e88f25 HMH |
1519 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1520 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1521 | ||
1522 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1523 | { | |
1524 | tpacpi_input_send_key(scancode); | |
1525 | if (hotkey_report_mode < 2) { | |
1526 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1527 | 0x80, 0x1001 + scancode); | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1532 | { | |
1533 | u8 d; | |
1534 | ||
1535 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1536 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1537 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1538 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1539 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1540 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1541 | } | |
1542 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1543 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1544 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1545 | } | |
1546 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1547 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1548 | n->displayexp_toggle = | |
1549 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1550 | } | |
1551 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1552 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1553 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1554 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1555 | n->brightness_toggle = | |
1556 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1557 | } | |
1558 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1559 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1560 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1561 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1562 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1563 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1568 | do { \ |
1569 | if ((mask & (1 << __scancode)) && \ | |
1570 | oldn->__member != newn->__member) \ | |
1571 | tpacpi_hotkey_send_key(__scancode); \ | |
1572 | } while (0) | |
01e88f25 HMH |
1573 | |
1574 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1575 | do { if (mask & (1 << __scancode)) \ | |
1576 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1577 | ||
1578 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1579 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1580 | u32 mask) |
1581 | { | |
1582 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1583 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1584 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1585 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1586 | ||
1587 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1588 | ||
1589 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1590 | ||
1591 | /* handle volume */ | |
1592 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1593 | if (oldn->mute != newn->mute) { | |
1594 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1595 | } | |
1596 | if (oldn->volume_level > newn->volume_level) { | |
1597 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1598 | } else if (oldn->volume_level < newn->volume_level) { | |
1599 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1600 | } else if (oldn->mute == newn->mute) { | |
1601 | /* repeated key presses that didn't change state */ | |
1602 | if (newn->mute) { | |
1603 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1604 | } else if (newn->volume_level != 0) { | |
1605 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1606 | } else { | |
1607 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1608 | } | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | /* handle brightness */ | |
1613 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1614 | if (oldn->brightness_level < newn->brightness_level) { | |
1615 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1616 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1617 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1618 | } else { | |
1619 | /* repeated key presses that didn't change state */ | |
1620 | if (newn->brightness_level != 0) { | |
1621 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1622 | } else { | |
1623 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1624 | } | |
1625 | } | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | #undef TPACPI_COMPARE_KEY | |
1630 | #undef TPACPI_MAY_SEND_KEY | |
1631 | ||
1632 | static int hotkey_kthread(void *data) | |
1633 | { | |
1634 | struct tp_nvram_state s[2]; | |
1635 | u32 mask; | |
1636 | unsigned int si, so; | |
1637 | unsigned long t; | |
1638 | unsigned int change_detector, must_reset; | |
1639 | ||
1640 | mutex_lock(&hotkey_thread_mutex); | |
1641 | ||
1642 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1643 | goto exit; | |
1644 | ||
1645 | set_freezable(); | |
1646 | ||
1647 | so = 0; | |
1648 | si = 1; | |
1649 | t = 0; | |
1650 | ||
1651 | /* Initial state for compares */ | |
1652 | mutex_lock(&hotkey_thread_data_mutex); | |
1653 | change_detector = hotkey_config_change; | |
1654 | mask = hotkey_source_mask & hotkey_mask; | |
1655 | mutex_unlock(&hotkey_thread_data_mutex); | |
1656 | hotkey_read_nvram(&s[so], mask); | |
1657 | ||
1658 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1659 | if (t == 0) | |
1660 | t = 1000/hotkey_poll_freq; | |
1661 | t = msleep_interruptible(t); | |
1662 | if (unlikely(kthread_should_stop())) | |
1663 | break; | |
1664 | must_reset = try_to_freeze(); | |
1665 | if (t > 0 && !must_reset) | |
1666 | continue; | |
1667 | ||
1668 | mutex_lock(&hotkey_thread_data_mutex); | |
1669 | if (must_reset || hotkey_config_change != change_detector) { | |
1670 | /* forget old state on thaw or config change */ | |
1671 | si = so; | |
1672 | t = 0; | |
1673 | change_detector = hotkey_config_change; | |
1674 | } | |
1675 | mask = hotkey_source_mask & hotkey_mask; | |
1676 | mutex_unlock(&hotkey_thread_data_mutex); | |
1677 | ||
1678 | if (likely(mask)) { | |
1679 | hotkey_read_nvram(&s[si], mask); | |
1680 | if (likely(si != so)) { | |
1681 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1682 | mask); |
01e88f25 HMH |
1683 | } |
1684 | } | |
1685 | ||
1686 | so = si; | |
1687 | si ^= 1; | |
1688 | } | |
1689 | ||
1690 | exit: | |
1691 | mutex_unlock(&hotkey_thread_mutex); | |
1692 | return 0; | |
1693 | } | |
1694 | ||
1695 | static void hotkey_poll_stop_sync(void) | |
1696 | { | |
1697 | if (tpacpi_hotkey_task) { | |
1698 | if (frozen(tpacpi_hotkey_task) || | |
1699 | freezing(tpacpi_hotkey_task)) | |
1700 | thaw_process(tpacpi_hotkey_task); | |
1701 | ||
1702 | kthread_stop(tpacpi_hotkey_task); | |
1703 | tpacpi_hotkey_task = NULL; | |
1704 | mutex_lock(&hotkey_thread_mutex); | |
1705 | /* at this point, the thread did exit */ | |
1706 | mutex_unlock(&hotkey_thread_mutex); | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | /* call with hotkey_mutex held */ | |
1711 | static void hotkey_poll_setup(int may_warn) | |
1712 | { | |
1713 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1714 | hotkey_poll_freq > 0 && | |
1715 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1716 | if (!tpacpi_hotkey_task) { | |
1717 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 1718 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
1719 | if (IS_ERR(tpacpi_hotkey_task)) { |
1720 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1721 | printk(TPACPI_ERR |
1722 | "could not create kernel thread " | |
01e88f25 HMH |
1723 | "for hotkey polling\n"); |
1724 | } | |
1725 | } | |
1726 | } else { | |
1727 | hotkey_poll_stop_sync(); | |
1728 | if (may_warn && | |
1729 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1730 | printk(TPACPI_NOTICE |
1731 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1732 | "which is currently disabled\n", |
1733 | hotkey_source_mask); | |
1734 | } | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | static void hotkey_poll_setup_safe(int may_warn) | |
1739 | { | |
1740 | mutex_lock(&hotkey_mutex); | |
1741 | hotkey_poll_setup(may_warn); | |
1742 | mutex_unlock(&hotkey_mutex); | |
1743 | } | |
1744 | ||
1bc6b9cd HMH |
1745 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1746 | ||
1747 | static void hotkey_poll_setup_safe(int __unused) | |
1748 | { | |
1749 | } | |
1750 | ||
1751 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1752 | ||
01e88f25 HMH |
1753 | static int hotkey_inputdev_open(struct input_dev *dev) |
1754 | { | |
1755 | switch (tpacpi_lifecycle) { | |
1756 | case TPACPI_LIFE_INIT: | |
1757 | /* | |
1758 | * hotkey_init will call hotkey_poll_setup_safe | |
1759 | * at the appropriate moment | |
1760 | */ | |
1761 | return 0; | |
1762 | case TPACPI_LIFE_EXITING: | |
1763 | return -EBUSY; | |
1764 | case TPACPI_LIFE_RUNNING: | |
1765 | hotkey_poll_setup_safe(0); | |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1770 | BUG(); | |
1771 | return -EBUSY; | |
1772 | } | |
1773 | ||
1774 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1775 | { | |
1776 | /* disable hotkey polling when possible */ | |
1777 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1778 | hotkey_poll_setup_safe(0); | |
1779 | } | |
01e88f25 | 1780 | |
a0416420 HMH |
1781 | /* sysfs hotkey enable ------------------------------------------------- */ |
1782 | static ssize_t hotkey_enable_show(struct device *dev, | |
1783 | struct device_attribute *attr, | |
1784 | char *buf) | |
1785 | { | |
ae92bd17 | 1786 | int res, status; |
a0416420 | 1787 | |
b2c985e7 | 1788 | res = hotkey_status_get(&status); |
a0416420 HMH |
1789 | if (res) |
1790 | return res; | |
1791 | ||
1792 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1793 | } | |
1794 | ||
1795 | static ssize_t hotkey_enable_store(struct device *dev, | |
1796 | struct device_attribute *attr, | |
1797 | const char *buf, size_t count) | |
1798 | { | |
1799 | unsigned long t; | |
b2c985e7 | 1800 | int res; |
a0416420 HMH |
1801 | |
1802 | if (parse_strtoul(buf, 1, &t)) | |
1803 | return -EINVAL; | |
1804 | ||
b2c985e7 | 1805 | res = hotkey_status_set(t); |
a0416420 HMH |
1806 | |
1807 | return (res) ? res : count; | |
1808 | } | |
1809 | ||
1810 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1811 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1812 | hotkey_enable_show, hotkey_enable_store); |
1813 | ||
1814 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1815 | static ssize_t hotkey_mask_show(struct device *dev, | |
1816 | struct device_attribute *attr, | |
1817 | char *buf) | |
1818 | { | |
b2c985e7 | 1819 | int res; |
a0416420 | 1820 | |
b2c985e7 HMH |
1821 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1822 | return -ERESTARTSYS; | |
1823 | res = hotkey_mask_get(); | |
1824 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1825 | |
b2c985e7 HMH |
1826 | return (res)? |
1827 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1828 | } |
1829 | ||
1830 | static ssize_t hotkey_mask_store(struct device *dev, | |
1831 | struct device_attribute *attr, | |
1832 | const char *buf, size_t count) | |
1833 | { | |
1834 | unsigned long t; | |
b2c985e7 | 1835 | int res; |
a0416420 | 1836 | |
ae92bd17 | 1837 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1838 | return -EINVAL; |
1839 | ||
b2c985e7 HMH |
1840 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1841 | return -ERESTARTSYS; | |
1842 | ||
1843 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1844 | |
1845 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1846 | hotkey_poll_setup(1); | |
1847 | #endif | |
1848 | ||
b2c985e7 | 1849 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1850 | |
1851 | return (res) ? res : count; | |
1852 | } | |
1853 | ||
1854 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1855 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1856 | hotkey_mask_show, hotkey_mask_store); |
1857 | ||
1858 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1859 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1860 | struct device_attribute *attr, | |
1861 | char *buf) | |
1862 | { | |
1863 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1864 | } | |
1865 | ||
1866 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1867 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1868 | |
1869 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1870 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1871 | struct device_attribute *attr, | |
1872 | char *buf) | |
1873 | { | |
ae92bd17 | 1874 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1875 | } |
1876 | ||
1877 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1878 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1879 | |
9b010de5 HMH |
1880 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1881 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1882 | struct device_attribute *attr, | |
1883 | char *buf) | |
1884 | { | |
01e88f25 HMH |
1885 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1886 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1887 | } |
1888 | ||
1889 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1890 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1891 | ||
1892 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1893 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1894 | struct device_attribute *attr, | |
1895 | char *buf) | |
1896 | { | |
1897 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1898 | (hotkey_all_mask | hotkey_source_mask) |
1899 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1900 | } |
1901 | ||
1902 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1903 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1904 | hotkey_recommended_mask_show, NULL); | |
1905 | ||
01e88f25 HMH |
1906 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1907 | ||
1908 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1909 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1910 | struct device_attribute *attr, | |
1911 | char *buf) | |
1912 | { | |
1913 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1914 | } | |
1915 | ||
1916 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1917 | struct device_attribute *attr, | |
1918 | const char *buf, size_t count) | |
1919 | { | |
1920 | unsigned long t; | |
1921 | ||
1922 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1923 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1924 | return -EINVAL; | |
1925 | ||
1926 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1927 | return -ERESTARTSYS; | |
1928 | ||
1929 | HOTKEY_CONFIG_CRITICAL_START | |
1930 | hotkey_source_mask = t; | |
1931 | HOTKEY_CONFIG_CRITICAL_END | |
1932 | ||
1933 | hotkey_poll_setup(1); | |
1934 | ||
1935 | mutex_unlock(&hotkey_mutex); | |
1936 | ||
1937 | return count; | |
1938 | } | |
1939 | ||
1940 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1941 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1942 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1943 | ||
1944 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1945 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1946 | struct device_attribute *attr, | |
1947 | char *buf) | |
1948 | { | |
1949 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1950 | } | |
1951 | ||
1952 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1953 | struct device_attribute *attr, | |
1954 | const char *buf, size_t count) | |
1955 | { | |
1956 | unsigned long t; | |
1957 | ||
1958 | if (parse_strtoul(buf, 25, &t)) | |
1959 | return -EINVAL; | |
1960 | ||
1961 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1962 | return -ERESTARTSYS; | |
1963 | ||
1964 | hotkey_poll_freq = t; | |
1965 | ||
1966 | hotkey_poll_setup(1); | |
1967 | mutex_unlock(&hotkey_mutex); | |
1968 | ||
1969 | return count; | |
1970 | } | |
1971 | ||
1972 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1973 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1974 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1975 | ||
1976 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1977 | ||
50ebec09 | 1978 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
1979 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
1980 | struct device_attribute *attr, | |
1981 | char *buf) | |
1982 | { | |
1983 | int res, s; | |
1984 | res = hotkey_get_wlsw(&s); | |
1985 | if (res < 0) | |
1986 | return res; | |
1987 | ||
1988 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1989 | } | |
1990 | ||
1991 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1992 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1993 | ||
50ebec09 HMH |
1994 | static void hotkey_radio_sw_notify_change(void) |
1995 | { | |
1996 | if (tp_features.hotkey_wlsw) | |
1997 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
1998 | "hotkey_radio_sw"); | |
1999 | } | |
2000 | ||
6c231bd5 HMH |
2001 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2002 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2003 | struct device_attribute *attr, | |
2004 | char *buf) | |
2005 | { | |
2006 | int res, s; | |
2007 | res = hotkey_get_tablet_mode(&s); | |
2008 | if (res < 0) | |
2009 | return res; | |
2010 | ||
2011 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2012 | } | |
2013 | ||
2014 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2015 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2016 | ||
2017 | static void hotkey_tablet_mode_notify_change(void) | |
2018 | { | |
2019 | if (tp_features.hotkey_tablet) | |
2020 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2021 | "hotkey_tablet_mode"); | |
2022 | } | |
2023 | ||
ff80f137 HMH |
2024 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2025 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2026 | struct device_attribute *attr, | |
2027 | char *buf) | |
2028 | { | |
2029 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2030 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2031 | } | |
2032 | ||
2033 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2034 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2035 | ||
50ebec09 | 2036 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2037 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2038 | struct device_attribute *attr, | |
2039 | char *buf) | |
2040 | { | |
2041 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2042 | } | |
2043 | ||
2044 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2045 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2046 | ||
1d5a2b54 | 2047 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
2048 | { |
2049 | if (tp_features.hotkey_mask) | |
2050 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2051 | "wakeup_reason"); | |
2052 | } | |
2053 | ||
2054 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2055 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2056 | struct device_attribute *attr, | |
2057 | char *buf) | |
2058 | { | |
2059 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2060 | } | |
2061 | ||
2062 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2063 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2064 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2065 | ||
1d5a2b54 | 2066 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
2067 | { |
2068 | if (tp_features.hotkey_mask) | |
2069 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2070 | "wakeup_hotunplug_complete"); | |
2071 | } | |
2072 | ||
a0416420 HMH |
2073 | /* --------------------------------------------------------------------- */ |
2074 | ||
ff80f137 HMH |
2075 | static struct attribute *hotkey_attributes[] __initdata = { |
2076 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2077 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 2078 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
2079 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2080 | &dev_attr_hotkey_mask.attr, | |
2081 | &dev_attr_hotkey_all_mask.attr, | |
2082 | &dev_attr_hotkey_recommended_mask.attr, | |
2083 | &dev_attr_hotkey_source_mask.attr, | |
2084 | &dev_attr_hotkey_poll_freq.attr, | |
2085 | #endif | |
ff80f137 HMH |
2086 | }; |
2087 | ||
2088 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 2089 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
2090 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2091 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
2092 | &dev_attr_hotkey_all_mask.attr, |
2093 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 2094 | #endif |
a713b4d7 HMH |
2095 | &dev_attr_hotkey_wakeup_reason.attr, |
2096 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
2097 | }; |
2098 | ||
0e74dc26 HMH |
2099 | static void bluetooth_update_rfk(void); |
2100 | static void wan_update_rfk(void); | |
733e27c1 HMH |
2101 | static void tpacpi_send_radiosw_update(void) |
2102 | { | |
2103 | int wlsw; | |
2104 | ||
0e74dc26 HMH |
2105 | /* Sync these BEFORE sending any rfkill events */ |
2106 | if (tp_features.bluetooth) | |
2107 | bluetooth_update_rfk(); | |
2108 | if (tp_features.wan) | |
2109 | wan_update_rfk(); | |
2110 | ||
733e27c1 HMH |
2111 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
2112 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2113 | ||
2114 | input_report_switch(tpacpi_inputdev, | |
2115 | SW_RFKILL_ALL, !!wlsw); | |
2116 | input_sync(tpacpi_inputdev); | |
2117 | ||
2118 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2119 | } | |
2120 | hotkey_radio_sw_notify_change(); | |
2121 | } | |
2122 | ||
9c0a76e1 HMH |
2123 | static void hotkey_exit(void) |
2124 | { | |
2125 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2126 | hotkey_poll_stop_sync(); | |
2127 | #endif | |
2128 | ||
2129 | if (hotkey_dev_attributes) | |
2130 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2131 | ||
2132 | kfree(hotkey_keycode_map); | |
2133 | ||
2134 | if (tp_features.hotkey) { | |
2135 | dbg_printk(TPACPI_DBG_EXIT, | |
2136 | "restoring original hot key mask\n"); | |
2137 | /* no short-circuit boolean operator below! */ | |
2138 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2139 | hotkey_status_set(hotkey_orig_status)) != 0) | |
2140 | printk(TPACPI_ERR | |
2141 | "failed to restore hot key mask " | |
2142 | "to BIOS defaults\n"); | |
2143 | } | |
2144 | } | |
2145 | ||
a5763f22 | 2146 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 2147 | { |
0f089147 HMH |
2148 | /* Requirements for changing the default keymaps: |
2149 | * | |
2150 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
2151 | * good reasons. Do not change them unless you have deep | |
2152 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
2153 | * the various ThinkPad models. The driver behaves | |
2154 | * differently for KEY_RESERVED: such keys have their | |
2155 | * hot key mask *unset* in mask_recommended, and also | |
2156 | * in the initial hot key mask programmed into the | |
2157 | * firmware at driver load time, which means the firm- | |
2158 | * ware may react very differently if you change them to | |
2159 | * something else; | |
2160 | * | |
2161 | * 2. You must be subscribed to the linux-thinkpad and | |
2162 | * ibm-acpi-devel mailing lists, and you should read the | |
2163 | * list archives since 2007 if you want to change the | |
2164 | * keymaps. This requirement exists so that you will | |
2165 | * know the past history of problems with the thinkpad- | |
2166 | * acpi driver keymaps, and also that you will be | |
2167 | * listening to any bug reports; | |
2168 | * | |
2169 | * 3. Do not send thinkpad-acpi specific patches directly to | |
2170 | * for merging, *ever*. Send them to the linux-acpi | |
2171 | * mailinglist for comments. Merging is to be done only | |
2172 | * through acpi-test and the ACPI maintainer. | |
2173 | * | |
2174 | * If the above is too much to ask, don't change the keymap. | |
2175 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
2176 | */ | |
edf0e0e5 HMH |
2177 | static u16 ibm_keycode_map[] __initdata = { |
2178 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2179 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
2180 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2181 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2182 | |
2183 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2184 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2185 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2186 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
2187 | |
2188 | /* brightness: firmware always reacts to them, unless | |
2189 | * X.org did some tricks in the radeon BIOS scratch | |
2190 | * registers of *some* models */ | |
e927c08d | 2191 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 2192 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
2193 | |
2194 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 2195 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2196 | |
edf0e0e5 HMH |
2197 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2198 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2199 | |
2200 | /* Volume: firmware always react to it and reprograms | |
2201 | * the built-in *extra* mixer. Never map it to control | |
2202 | * another mixer by default. */ | |
e927c08d HMH |
2203 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2204 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2205 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2206 | |
edf0e0e5 | 2207 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2208 | |
edf0e0e5 HMH |
2209 | /* (assignments unknown, please report if found) */ |
2210 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2211 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2212 | }; | |
2213 | static u16 lenovo_keycode_map[] __initdata = { | |
2214 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2215 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2216 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2217 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2218 | |
2219 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2220 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2221 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2222 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 2223 | |
b5972796 HMH |
2224 | /* These either have to go through ACPI video, or |
2225 | * act like in the IBM ThinkPads, so don't ever | |
2226 | * enable them by default */ | |
56a185b4 | 2227 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2228 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2229 | |
edf0e0e5 | 2230 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2231 | |
edf0e0e5 HMH |
2232 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2233 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2234 | |
2235 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2236 | * react to it and reprograms the built-in *extra* mixer. | |
2237 | * Never map it to control another mixer by default. | |
2238 | * | |
2239 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2240 | * these over the regular keyboard, so these are no-ops, | |
2241 | * but there are still weird bugs re. MUTE, so do not | |
2242 | * change unless you get test reports from all Lenovo | |
2243 | * models. May cause the BIOS to interfere with the | |
2244 | * HDA mixer. | |
2245 | */ | |
e927c08d HMH |
2246 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2247 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2248 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2249 | |
edf0e0e5 | 2250 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2251 | |
edf0e0e5 HMH |
2252 | /* (assignments unknown, please report if found) */ |
2253 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2254 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2255 | }; | |
2256 | ||
2257 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2258 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2259 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2260 | ||
6a38abbf | 2261 | int res, i; |
74941a69 | 2262 | int status; |
1b6521dc | 2263 | int hkeyv; |
b86c4722 | 2264 | |
fe08bc4b HMH |
2265 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2266 | ||
6a38abbf | 2267 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2268 | BUG_ON(tpacpi_inputdev->open != NULL || |
2269 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2270 | |
e0c7dfe7 | 2271 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2272 | mutex_init(&hotkey_mutex); |
5fba344c | 2273 | |
01e88f25 HMH |
2274 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2275 | mutex_init(&hotkey_thread_mutex); | |
2276 | mutex_init(&hotkey_thread_data_mutex); | |
2277 | #endif | |
2278 | ||
56b6aeb0 | 2279 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2280 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2281 | |
fe08bc4b | 2282 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2283 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2284 | |
9c0a76e1 HMH |
2285 | if (!tp_features.hotkey) |
2286 | return 1; | |
a0416420 | 2287 | |
d64c81c4 HMH |
2288 | tpacpi_disable_brightness_delay(); |
2289 | ||
9c0a76e1 HMH |
2290 | hotkey_dev_attributes = create_attr_set(13, NULL); |
2291 | if (!hotkey_dev_attributes) | |
2292 | return -ENOMEM; | |
2293 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
2294 | hotkey_attributes, | |
2295 | ARRAY_SIZE(hotkey_attributes)); | |
2296 | if (res) | |
2297 | goto err_exit; | |
2298 | ||
2299 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
2300 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking | |
2301 | for HKEY interface version 0x100 */ | |
2302 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2303 | if ((hkeyv >> 8) != 1) { | |
2304 | printk(TPACPI_ERR "unknown version of the " | |
2305 | "HKEY interface: 0x%x\n", hkeyv); | |
2306 | printk(TPACPI_ERR "please report this to %s\n", | |
2307 | TPACPI_MAIL); | |
2308 | } else { | |
2309 | /* | |
2310 | * MHKV 0x100 in A31, R40, R40e, | |
2311 | * T4x, X31, and later | |
2312 | */ | |
2313 | tp_features.hotkey_mask = 1; | |
1b6521dc | 2314 | } |
9c0a76e1 | 2315 | } |
56b6aeb0 | 2316 | |
9c0a76e1 HMH |
2317 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
2318 | str_supported(tp_features.hotkey_mask)); | |
fe08bc4b | 2319 | |
9c0a76e1 HMH |
2320 | if (tp_features.hotkey_mask) { |
2321 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
2322 | "MHKA", "qd")) { | |
2323 | printk(TPACPI_ERR | |
2324 | "missing MHKA handler, " | |
2325 | "please report this to %s\n", | |
2326 | TPACPI_MAIL); | |
2327 | /* FN+F12, FN+F4, FN+F3 */ | |
2328 | hotkey_all_mask = 0x080cU; | |
9b010de5 | 2329 | } |
9c0a76e1 | 2330 | } |
9b010de5 | 2331 | |
9c0a76e1 HMH |
2332 | /* hotkey_source_mask *must* be zero for |
2333 | * the first hotkey_mask_get */ | |
2334 | res = hotkey_status_get(&hotkey_orig_status); | |
2335 | if (res) | |
2336 | goto err_exit; | |
2337 | ||
2338 | if (tp_features.hotkey_mask) { | |
2339 | res = hotkey_mask_get(); | |
2340 | if (res) | |
2341 | goto err_exit; | |
2342 | ||
2343 | hotkey_orig_mask = hotkey_mask; | |
2344 | res = add_many_to_attr_set( | |
2345 | hotkey_dev_attributes, | |
2346 | hotkey_mask_attributes, | |
2347 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2348 | if (res) | |
2349 | goto err_exit; | |
2350 | } | |
74941a69 | 2351 | |
01e88f25 | 2352 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
9c0a76e1 HMH |
2353 | if (tp_features.hotkey_mask) { |
2354 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2355 | & ~hotkey_all_mask; | |
2356 | } else { | |
2357 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2358 | } | |
01e88f25 | 2359 | |
9c0a76e1 HMH |
2360 | vdbg_printk(TPACPI_DBG_INIT, |
2361 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2362 | hotkey_source_mask, hotkey_poll_freq); | |
01e88f25 HMH |
2363 | #endif |
2364 | ||
a73f3091 HMH |
2365 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2366 | if (dbg_wlswemul) { | |
2367 | tp_features.hotkey_wlsw = 1; | |
2368 | printk(TPACPI_INFO | |
2369 | "radio switch emulation enabled\n"); | |
2370 | } else | |
2371 | #endif | |
9c0a76e1 HMH |
2372 | /* Not all thinkpads have a hardware radio switch */ |
2373 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2374 | tp_features.hotkey_wlsw = 1; | |
2375 | printk(TPACPI_INFO | |
2376 | "radio switch found; radios are %s\n", | |
2377 | enabled(status, 0)); | |
3a872080 HMH |
2378 | } |
2379 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
2380 | res = add_to_attr_set(hotkey_dev_attributes, |
2381 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 2382 | |
9c0a76e1 HMH |
2383 | /* For X41t, X60t, X61t Tablets... */ |
2384 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2385 | tp_features.hotkey_tablet = 1; | |
2386 | printk(TPACPI_INFO | |
2387 | "possible tablet mode switch found; " | |
2388 | "ThinkPad in %s mode\n", | |
2389 | (status & TP_HOTKEY_TABLET_MASK)? | |
2390 | "tablet" : "laptop"); | |
2391 | res = add_to_attr_set(hotkey_dev_attributes, | |
2392 | &dev_attr_hotkey_tablet_mode.attr); | |
2393 | } | |
6c231bd5 | 2394 | |
9c0a76e1 HMH |
2395 | if (!res) |
2396 | res = register_attr_set_with_sysfs( | |
2397 | hotkey_dev_attributes, | |
2398 | &tpacpi_pdev->dev.kobj); | |
2399 | if (res) | |
2400 | goto err_exit; | |
6a38abbf | 2401 | |
9c0a76e1 | 2402 | /* Set up key map */ |
edf0e0e5 | 2403 | |
9c0a76e1 HMH |
2404 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
2405 | GFP_KERNEL); | |
2406 | if (!hotkey_keycode_map) { | |
2407 | printk(TPACPI_ERR | |
2408 | "failed to allocate memory for key map\n"); | |
2409 | res = -ENOMEM; | |
2410 | goto err_exit; | |
2411 | } | |
edf0e0e5 | 2412 | |
9c0a76e1 HMH |
2413 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
2414 | dbg_printk(TPACPI_DBG_INIT, | |
2415 | "using Lenovo default hot key map\n"); | |
2416 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2417 | TPACPI_HOTKEY_MAP_SIZE); | |
2418 | } else { | |
2419 | dbg_printk(TPACPI_DBG_INIT, | |
2420 | "using IBM default hot key map\n"); | |
2421 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2422 | TPACPI_HOTKEY_MAP_SIZE); | |
2423 | } | |
edf0e0e5 | 2424 | |
9c0a76e1 HMH |
2425 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2426 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2427 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
2428 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; | |
2429 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2430 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2431 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
2432 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
2433 | set_bit(hotkey_keycode_map[i], | |
2434 | tpacpi_inputdev->keybit); | |
2435 | } else { | |
2436 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2437 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 2438 | } |
9c0a76e1 | 2439 | } |
6a38abbf | 2440 | |
9c0a76e1 HMH |
2441 | if (tp_features.hotkey_wlsw) { |
2442 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2443 | set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); | |
2444 | } | |
2445 | if (tp_features.hotkey_tablet) { | |
2446 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2447 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2448 | } | |
5c29d58f | 2449 | |
9c0a76e1 HMH |
2450 | /* Do not issue duplicate brightness change events to |
2451 | * userspace */ | |
2452 | if (!tp_features.bright_acpimode) | |
2453 | /* update bright_acpimode... */ | |
2454 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 2455 | |
9c0a76e1 HMH |
2456 | if (tp_features.bright_acpimode) { |
2457 | printk(TPACPI_INFO | |
2458 | "This ThinkPad has standard ACPI backlight " | |
2459 | "brightness control, supported by the ACPI " | |
2460 | "video driver\n"); | |
2461 | printk(TPACPI_NOTICE | |
2462 | "Disabling thinkpad-acpi brightness events " | |
2463 | "by default...\n"); | |
2464 | ||
2465 | /* The hotkey_reserved_mask change below is not | |
2466 | * necessary while the keys are at KEY_RESERVED in the | |
2467 | * default map, but better safe than sorry, leave it | |
2468 | * here as a marker of what we have to do, especially | |
2469 | * when we finally become able to set this at runtime | |
2470 | * on response to X.org requests */ | |
2471 | hotkey_reserved_mask |= | |
2472 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2473 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2474 | } | |
ff80f137 | 2475 | |
9c0a76e1 HMH |
2476 | dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n"); |
2477 | res = hotkey_status_set(1); | |
2478 | if (res) { | |
2479 | hotkey_exit(); | |
2480 | return res; | |
2481 | } | |
2482 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) | |
2483 | & ~hotkey_reserved_mask) | |
2484 | | hotkey_orig_mask); | |
2485 | if (res < 0 && res != -ENXIO) { | |
2486 | hotkey_exit(); | |
2487 | return res; | |
2488 | } | |
01e88f25 | 2489 | |
9c0a76e1 HMH |
2490 | dbg_printk(TPACPI_DBG_INIT, |
2491 | "legacy hot key reporting over procfs %s\n", | |
2492 | (hotkey_report_mode < 2) ? | |
2493 | "enabled" : "disabled"); | |
01e88f25 | 2494 | |
9c0a76e1 HMH |
2495 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2496 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 2497 | |
9c0a76e1 | 2498 | hotkey_poll_setup_safe(1); |
733e27c1 | 2499 | tpacpi_send_radiosw_update(); |
9c0a76e1 | 2500 | tpacpi_input_send_tabletsw(); |
56b6aeb0 | 2501 | |
9c0a76e1 | 2502 | return 0; |
01e88f25 | 2503 | |
9c0a76e1 HMH |
2504 | err_exit: |
2505 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2506 | hotkey_dev_attributes = NULL; | |
a0416420 | 2507 | |
9c0a76e1 | 2508 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
2509 | } |
2510 | ||
2511 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
2512 | { | |
6a38abbf | 2513 | u32 hkey; |
b7c8c200 | 2514 | unsigned int scancode; |
3eea123d | 2515 | int send_acpi_ev; |
3e5ce914 | 2516 | int ignore_acpi_ev; |
3b64b51d | 2517 | int unk_ev; |
3eea123d HMH |
2518 | |
2519 | if (event != 0x80) { | |
35ff8b9f HMH |
2520 | printk(TPACPI_ERR |
2521 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2522 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2523 | acpi_bus_generate_netlink_event( |
2524 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2525 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2526 | event, 0); |
3eea123d HMH |
2527 | return; |
2528 | } | |
2529 | ||
2530 | while (1) { | |
2531 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2532 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2533 | return; |
2534 | } | |
2535 | ||
2536 | if (hkey == 0) { | |
2537 | /* queue empty */ | |
2538 | return; | |
2539 | } | |
2540 | ||
3b64b51d | 2541 | send_acpi_ev = 1; |
3e5ce914 | 2542 | ignore_acpi_ev = 0; |
3b64b51d | 2543 | unk_ev = 0; |
56b6aeb0 | 2544 | |
ff80f137 HMH |
2545 | switch (hkey >> 12) { |
2546 | case 1: | |
2547 | /* 0x1000-0x1FFF: key presses */ | |
2548 | scancode = hkey & 0xfff; | |
2549 | if (scancode > 0 && scancode < 0x21) { | |
2550 | scancode--; | |
01e88f25 HMH |
2551 | if (!(hotkey_source_mask & (1 << scancode))) { |
2552 | tpacpi_input_send_key(scancode); | |
3b64b51d | 2553 | send_acpi_ev = 0; |
01e88f25 HMH |
2554 | } else { |
2555 | ignore_acpi_ev = 1; | |
2556 | } | |
ff80f137 | 2557 | } else { |
3b64b51d | 2558 | unk_ev = 1; |
ff80f137 HMH |
2559 | } |
2560 | break; | |
a713b4d7 HMH |
2561 | case 2: |
2562 | /* Wakeup reason */ | |
2563 | switch (hkey) { | |
2564 | case 0x2304: /* suspend, undock */ | |
2565 | case 0x2404: /* hibernation, undock */ | |
2566 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2567 | ignore_acpi_ev = 1; | |
2568 | break; | |
2569 | case 0x2305: /* suspend, bay eject */ | |
2570 | case 0x2405: /* hibernation, bay eject */ | |
2571 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2572 | ignore_acpi_ev = 1; | |
2573 | break; | |
2574 | default: | |
2575 | unk_ev = 1; | |
2576 | } | |
2577 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2578 | printk(TPACPI_INFO | |
2579 | "woke up due to a hot-unplug " | |
2580 | "request...\n"); | |
50ebec09 | 2581 | hotkey_wakeup_reason_notify_change(); |
a713b4d7 HMH |
2582 | } |
2583 | break; | |
2584 | case 3: | |
2585 | /* bay-related wakeups */ | |
2586 | if (hkey == 0x3003) { | |
2587 | hotkey_autosleep_ack = 1; | |
2588 | printk(TPACPI_INFO | |
2589 | "bay ejected\n"); | |
50ebec09 | 2590 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2591 | } else { |
2592 | unk_ev = 1; | |
2593 | } | |
2594 | break; | |
2595 | case 4: | |
2596 | /* dock-related wakeups */ | |
2597 | if (hkey == 0x4003) { | |
2598 | hotkey_autosleep_ack = 1; | |
2599 | printk(TPACPI_INFO | |
2600 | "undocked\n"); | |
50ebec09 | 2601 | hotkey_wakeup_hotunplug_complete_notify_change(); |
a713b4d7 HMH |
2602 | } else { |
2603 | unk_ev = 1; | |
2604 | } | |
2605 | break; | |
ff80f137 | 2606 | case 5: |
d1edb2b5 | 2607 | /* 0x5000-0x5FFF: human interface helpers */ |
3b64b51d | 2608 | switch (hkey) { |
d1edb2b5 | 2609 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
d1edb2b5 HMH |
2610 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
2611 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
3b64b51d | 2612 | break; |
6c231bd5 HMH |
2613 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
2614 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2615 | tpacpi_input_send_tabletsw(); | |
2616 | hotkey_tablet_mode_notify_change(); | |
b3ec6f91 HMH |
2617 | send_acpi_ev = 0; |
2618 | break; | |
3b64b51d HMH |
2619 | case 0x5001: |
2620 | case 0x5002: | |
2621 | /* LID switch events. Do not propagate */ | |
3e5ce914 | 2622 | ignore_acpi_ev = 1; |
3b64b51d HMH |
2623 | break; |
2624 | default: | |
2625 | unk_ev = 1; | |
ff80f137 HMH |
2626 | } |
2627 | break; | |
2628 | case 7: | |
2629 | /* 0x7000-0x7FFF: misc */ | |
2630 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
733e27c1 | 2631 | tpacpi_send_radiosw_update(); |
3b64b51d | 2632 | send_acpi_ev = 0; |
6a38abbf | 2633 | break; |
6a38abbf | 2634 | } |
ff80f137 HMH |
2635 | /* fallthrough to default */ |
2636 | default: | |
3b64b51d HMH |
2637 | unk_ev = 1; |
2638 | } | |
2639 | if (unk_ev) { | |
35ff8b9f HMH |
2640 | printk(TPACPI_NOTICE |
2641 | "unhandled HKEY event 0x%04x\n", hkey); | |
6a38abbf | 2642 | } |
ff80f137 | 2643 | |
3eea123d | 2644 | /* Legacy events */ |
35ff8b9f HMH |
2645 | if (!ignore_acpi_ev && |
2646 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2647 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2648 | event, hkey); | |
3e5ce914 | 2649 | } |
ff80f137 | 2650 | |
3eea123d | 2651 | /* netlink events */ |
3e5ce914 | 2652 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2653 | acpi_bus_generate_netlink_event( |
2654 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2655 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2656 | event, hkey); |
3eea123d | 2657 | } |
56b6aeb0 HMH |
2658 | } |
2659 | } | |
2660 | ||
a713b4d7 HMH |
2661 | static void hotkey_suspend(pm_message_t state) |
2662 | { | |
2663 | /* Do these on suspend, we get the events on early resume! */ | |
2664 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2665 | hotkey_autosleep_ack = 0; | |
2666 | } | |
2667 | ||
5c29d58f HMH |
2668 | static void hotkey_resume(void) |
2669 | { | |
d64c81c4 HMH |
2670 | tpacpi_disable_brightness_delay(); |
2671 | ||
b2c985e7 | 2672 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2673 | printk(TPACPI_ERR |
2674 | "error while trying to read hot key mask " | |
2675 | "from firmware\n"); | |
733e27c1 | 2676 | tpacpi_send_radiosw_update(); |
6c231bd5 | 2677 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2678 | hotkey_wakeup_reason_notify_change(); |
2679 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2680 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2681 | } |
2682 | ||
a0416420 | 2683 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2684 | static int hotkey_read(char *p) |
1da177e4 | 2685 | { |
ae92bd17 | 2686 | int res, status; |
1da177e4 LT |
2687 | int len = 0; |
2688 | ||
d8fd94d9 | 2689 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2690 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2691 | return len; | |
2692 | } | |
2693 | ||
fc589a3c HMH |
2694 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2695 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2696 | res = hotkey_status_get(&status); |
2697 | if (!res) | |
2698 | res = hotkey_mask_get(); | |
40ca9fdf | 2699 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2700 | if (res) |
2701 | return res; | |
1da177e4 LT |
2702 | |
2703 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2704 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2705 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2706 | len += sprintf(p + len, |
2707 | "commands:\tenable, disable, reset, <mask>\n"); | |
2708 | } else { | |
2709 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2710 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2711 | } | |
2712 | ||
2713 | return len; | |
2714 | } | |
2715 | ||
78f81cc4 | 2716 | static int hotkey_write(char *buf) |
1da177e4 | 2717 | { |
ae92bd17 HMH |
2718 | int res, status; |
2719 | u32 mask; | |
1da177e4 | 2720 | char *cmd; |
1da177e4 | 2721 | |
d8fd94d9 | 2722 | if (!tp_features.hotkey) |
1da177e4 LT |
2723 | return -ENODEV; |
2724 | ||
fc589a3c HMH |
2725 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2726 | return -ERESTARTSYS; | |
40ca9fdf | 2727 | |
b2c985e7 HMH |
2728 | status = -1; |
2729 | mask = hotkey_mask; | |
78f81cc4 | 2730 | |
40ca9fdf | 2731 | res = 0; |
1da177e4 LT |
2732 | while ((cmd = next_cmd(&buf))) { |
2733 | if (strlencmp(cmd, "enable") == 0) { | |
2734 | status = 1; | |
2735 | } else if (strlencmp(cmd, "disable") == 0) { | |
2736 | status = 0; | |
2737 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2738 | status = hotkey_orig_status; |
2739 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2740 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2741 | /* mask set */ | |
2742 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2743 | /* mask set */ | |
40ca9fdf HMH |
2744 | } else { |
2745 | res = -EINVAL; | |
2746 | goto errexit; | |
2747 | } | |
1da177e4 | 2748 | } |
b2c985e7 HMH |
2749 | if (status != -1) |
2750 | res = hotkey_status_set(status); | |
1da177e4 | 2751 | |
b2c985e7 HMH |
2752 | if (!res && mask != hotkey_mask) |
2753 | res = hotkey_mask_set(mask); | |
1da177e4 | 2754 | |
40ca9fdf HMH |
2755 | errexit: |
2756 | mutex_unlock(&hotkey_mutex); | |
2757 | return res; | |
78f81cc4 | 2758 | } |
1da177e4 | 2759 | |
1ba90e3a | 2760 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2761 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2762 | {"", 0}, |
2763 | }; | |
2764 | ||
8d376cd6 | 2765 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2766 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2767 | .notify = hotkey_notify, |
2768 | .handle = &hkey_handle, | |
2769 | .type = ACPI_DEVICE_NOTIFY, | |
2770 | }; | |
2771 | ||
a5763f22 HMH |
2772 | static struct ibm_struct hotkey_driver_data = { |
2773 | .name = "hotkey", | |
a5763f22 HMH |
2774 | .read = hotkey_read, |
2775 | .write = hotkey_write, | |
2776 | .exit = hotkey_exit, | |
5c29d58f | 2777 | .resume = hotkey_resume, |
a713b4d7 | 2778 | .suspend = hotkey_suspend, |
8d376cd6 | 2779 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2780 | }; |
2781 | ||
56b6aeb0 HMH |
2782 | /************************************************************************* |
2783 | * Bluetooth subdriver | |
2784 | */ | |
1da177e4 | 2785 | |
f74a27d4 HMH |
2786 | enum { |
2787 | /* ACPI GBDC/SBDC bits */ | |
2788 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2789 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 HMH |
2790 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
2791 | off / last state */ | |
2792 | }; | |
2793 | ||
2794 | enum { | |
2795 | /* ACPI \BLTH commands */ | |
2796 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
2797 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
2798 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
2799 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
2800 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
2801 | }; |
2802 | ||
0e74dc26 HMH |
2803 | static struct rfkill *tpacpi_bluetooth_rfkill; |
2804 | ||
153f8220 HMH |
2805 | static void bluetooth_suspend(pm_message_t state) |
2806 | { | |
2807 | /* Try to make sure radio will resume powered off */ | |
2808 | acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
2809 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME); | |
2810 | } | |
2811 | ||
07431ec8 HMH |
2812 | static int bluetooth_get_radiosw(void) |
2813 | { | |
2814 | int status; | |
2815 | ||
2816 | if (!tp_features.bluetooth) | |
2817 | return -ENODEV; | |
2818 | ||
133ec3bd HMH |
2819 | /* WLSW overrides bluetooth in firmware/hardware, reflect that */ |
2820 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 2821 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 2822 | |
a73f3091 HMH |
2823 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2824 | if (dbg_bluetoothemul) | |
2825 | return (tpacpi_bluetooth_emulstate) ? | |
2826 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
2827 | #endif | |
2828 | ||
07431ec8 HMH |
2829 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2830 | return -EIO; | |
2831 | ||
0e74dc26 HMH |
2832 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
2833 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
2834 | } |
2835 | ||
0e74dc26 HMH |
2836 | static void bluetooth_update_rfk(void) |
2837 | { | |
2838 | int status; | |
2839 | ||
2840 | if (!tpacpi_bluetooth_rfkill) | |
2841 | return; | |
2842 | ||
2843 | status = bluetooth_get_radiosw(); | |
2844 | if (status < 0) | |
2845 | return; | |
2846 | rfkill_force_state(tpacpi_bluetooth_rfkill, status); | |
2847 | } | |
2848 | ||
2849 | static int bluetooth_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
2850 | { |
2851 | int status; | |
2852 | ||
2853 | if (!tp_features.bluetooth) | |
2854 | return -ENODEV; | |
2855 | ||
133ec3bd HMH |
2856 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
2857 | * reason to risk weird behaviour. */ | |
2858 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
2859 | && radio_on) | |
2860 | return -EPERM; | |
2861 | ||
a73f3091 HMH |
2862 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2863 | if (dbg_bluetoothemul) { | |
2864 | tpacpi_bluetooth_emulstate = !!radio_on; | |
2865 | if (update_rfk) | |
2866 | bluetooth_update_rfk(); | |
2867 | return 0; | |
2868 | } | |
2869 | #endif | |
2870 | ||
153f8220 | 2871 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
07431ec8 | 2872 | if (radio_on) |
153f8220 | 2873 | status = TP_ACPI_BLUETOOTH_RADIOSSW; |
07431ec8 | 2874 | else |
153f8220 | 2875 | status = 0; |
07431ec8 HMH |
2876 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
2877 | return -EIO; | |
2878 | ||
0e74dc26 HMH |
2879 | if (update_rfk) |
2880 | bluetooth_update_rfk(); | |
2881 | ||
07431ec8 HMH |
2882 | return 0; |
2883 | } | |
f74a27d4 | 2884 | |
d3a6ade4 HMH |
2885 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2886 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2887 | struct device_attribute *attr, | |
2888 | char *buf) | |
2889 | { | |
2890 | int status; | |
2891 | ||
2892 | status = bluetooth_get_radiosw(); | |
2893 | if (status < 0) | |
2894 | return status; | |
2895 | ||
0e74dc26 HMH |
2896 | return snprintf(buf, PAGE_SIZE, "%d\n", |
2897 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
2898 | } |
2899 | ||
2900 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2901 | struct device_attribute *attr, | |
2902 | const char *buf, size_t count) | |
2903 | { | |
2904 | unsigned long t; | |
2905 | int res; | |
2906 | ||
2907 | if (parse_strtoul(buf, 1, &t)) | |
2908 | return -EINVAL; | |
2909 | ||
0e74dc26 | 2910 | res = bluetooth_set_radiosw(t, 1); |
d3a6ade4 HMH |
2911 | |
2912 | return (res) ? res : count; | |
2913 | } | |
2914 | ||
2915 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2916 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2917 | bluetooth_enable_show, bluetooth_enable_store); |
2918 | ||
2919 | /* --------------------------------------------------------------------- */ | |
2920 | ||
2921 | static struct attribute *bluetooth_attributes[] = { | |
2922 | &dev_attr_bluetooth_enable.attr, | |
2923 | NULL | |
2924 | }; | |
2925 | ||
2926 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2927 | .attrs = bluetooth_attributes, |
2928 | }; | |
2929 | ||
0e74dc26 HMH |
2930 | static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) |
2931 | { | |
2932 | int bts = bluetooth_get_radiosw(); | |
2933 | ||
2934 | if (bts < 0) | |
2935 | return bts; | |
2936 | ||
2937 | *state = bts; | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) | |
2942 | { | |
2943 | return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
2944 | } | |
2945 | ||
07431ec8 HMH |
2946 | static void bluetooth_exit(void) |
2947 | { | |
0e74dc26 HMH |
2948 | if (tpacpi_bluetooth_rfkill) |
2949 | rfkill_unregister(tpacpi_bluetooth_rfkill); | |
2950 | ||
07431ec8 HMH |
2951 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
2952 | &bluetooth_attr_group); | |
2953 | } | |
2954 | ||
a5763f22 | 2955 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2956 | { |
d3a6ade4 | 2957 | int res; |
d6fdd1e9 HMH |
2958 | int status = 0; |
2959 | ||
fe08bc4b HMH |
2960 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2961 | ||
e0c7dfe7 | 2962 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2963 | |
78f81cc4 BD |
2964 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2965 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2966 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2967 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2968 | ||
2969 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2970 | str_supported(tp_features.bluetooth), | |
2971 | status); | |
2972 | ||
a73f3091 HMH |
2973 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2974 | if (dbg_bluetoothemul) { | |
2975 | tp_features.bluetooth = 1; | |
2976 | printk(TPACPI_INFO | |
2977 | "bluetooth switch emulation enabled\n"); | |
2978 | } else | |
2979 | #endif | |
3a872080 HMH |
2980 | if (tp_features.bluetooth && |
2981 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2982 | /* no bluetooth hardware present in system */ | |
2983 | tp_features.bluetooth = 0; | |
2984 | dbg_printk(TPACPI_DBG_INIT, | |
2985 | "bluetooth hardware not installed\n"); | |
2986 | } | |
2987 | ||
0e74dc26 HMH |
2988 | if (!tp_features.bluetooth) |
2989 | return 1; | |
2990 | ||
2991 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 2992 | &bluetooth_attr_group); |
0e74dc26 HMH |
2993 | if (res) |
2994 | return res; | |
2995 | ||
2996 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, | |
2997 | &tpacpi_bluetooth_rfkill, | |
2998 | RFKILL_TYPE_BLUETOOTH, | |
2999 | "tpacpi_bluetooth_sw", | |
3000 | tpacpi_bluetooth_rfk_set, | |
3001 | tpacpi_bluetooth_rfk_get); | |
3002 | if (res) { | |
3003 | bluetooth_exit(); | |
3004 | return res; | |
d6fdd1e9 | 3005 | } |
fe08bc4b | 3006 | |
0e74dc26 | 3007 | return 0; |
1da177e4 LT |
3008 | } |
3009 | ||
d3a6ade4 | 3010 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 3011 | static int bluetooth_read(char *p) |
1da177e4 LT |
3012 | { |
3013 | int len = 0; | |
d6fdd1e9 | 3014 | int status = bluetooth_get_radiosw(); |
1da177e4 | 3015 | |
d8fd94d9 | 3016 | if (!tp_features.bluetooth) |
1da177e4 | 3017 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 3018 | else { |
d6fdd1e9 | 3019 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3020 | (status == RFKILL_STATE_UNBLOCKED) ? |
3021 | "enabled" : "disabled"); | |
1da177e4 LT |
3022 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3023 | } | |
3024 | ||
3025 | return len; | |
3026 | } | |
3027 | ||
78f81cc4 | 3028 | static int bluetooth_write(char *buf) |
1da177e4 | 3029 | { |
1da177e4 | 3030 | char *cmd; |
1da177e4 | 3031 | |
d8fd94d9 | 3032 | if (!tp_features.bluetooth) |
78f81cc4 | 3033 | return -ENODEV; |
1da177e4 LT |
3034 | |
3035 | while ((cmd = next_cmd(&buf))) { | |
3036 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3037 | bluetooth_set_radiosw(1, 1); |
1da177e4 | 3038 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3039 | bluetooth_set_radiosw(0, 1); |
1da177e4 LT |
3040 | } else |
3041 | return -EINVAL; | |
1da177e4 LT |
3042 | } |
3043 | ||
1da177e4 LT |
3044 | return 0; |
3045 | } | |
3046 | ||
a5763f22 HMH |
3047 | static struct ibm_struct bluetooth_driver_data = { |
3048 | .name = "bluetooth", | |
3049 | .read = bluetooth_read, | |
3050 | .write = bluetooth_write, | |
d3a6ade4 | 3051 | .exit = bluetooth_exit, |
153f8220 | 3052 | .suspend = bluetooth_suspend, |
a5763f22 HMH |
3053 | }; |
3054 | ||
56b6aeb0 HMH |
3055 | /************************************************************************* |
3056 | * Wan subdriver | |
3057 | */ | |
3058 | ||
f74a27d4 HMH |
3059 | enum { |
3060 | /* ACPI GWAN/SWAN bits */ | |
3061 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
3062 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 HMH |
3063 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
3064 | off / last state */ | |
f74a27d4 HMH |
3065 | }; |
3066 | ||
0e74dc26 HMH |
3067 | static struct rfkill *tpacpi_wan_rfkill; |
3068 | ||
153f8220 HMH |
3069 | static void wan_suspend(pm_message_t state) |
3070 | { | |
3071 | /* Try to make sure radio will resume powered off */ | |
3072 | acpi_evalf(NULL, NULL, "\\WGSV", "qvd", | |
3073 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME); | |
3074 | } | |
3075 | ||
07431ec8 HMH |
3076 | static int wan_get_radiosw(void) |
3077 | { | |
3078 | int status; | |
3079 | ||
3080 | if (!tp_features.wan) | |
3081 | return -ENODEV; | |
3082 | ||
133ec3bd HMH |
3083 | /* WLSW overrides WWAN in firmware/hardware, reflect that */ |
3084 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 3085 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 3086 | |
a73f3091 HMH |
3087 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3088 | if (dbg_wwanemul) | |
3089 | return (tpacpi_wwan_emulstate) ? | |
3090 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3091 | #endif | |
3092 | ||
07431ec8 HMH |
3093 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
3094 | return -EIO; | |
3095 | ||
0e74dc26 HMH |
3096 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
3097 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
3098 | } |
3099 | ||
0e74dc26 HMH |
3100 | static void wan_update_rfk(void) |
3101 | { | |
3102 | int status; | |
3103 | ||
3104 | if (!tpacpi_wan_rfkill) | |
3105 | return; | |
3106 | ||
3107 | status = wan_get_radiosw(); | |
3108 | if (status < 0) | |
3109 | return; | |
3110 | rfkill_force_state(tpacpi_wan_rfkill, status); | |
3111 | } | |
3112 | ||
3113 | static int wan_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
3114 | { |
3115 | int status; | |
3116 | ||
3117 | if (!tp_features.wan) | |
3118 | return -ENODEV; | |
3119 | ||
133ec3bd HMH |
3120 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
3121 | * reason to risk weird behaviour. */ | |
3122 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3123 | && radio_on) | |
3124 | return -EPERM; | |
3125 | ||
a73f3091 HMH |
3126 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3127 | if (dbg_wwanemul) { | |
3128 | tpacpi_wwan_emulstate = !!radio_on; | |
3129 | if (update_rfk) | |
3130 | wan_update_rfk(); | |
3131 | return 0; | |
3132 | } | |
3133 | #endif | |
3134 | ||
153f8220 | 3135 | /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ |
07431ec8 | 3136 | if (radio_on) |
153f8220 | 3137 | status = TP_ACPI_WANCARD_RADIOSSW; |
07431ec8 | 3138 | else |
153f8220 | 3139 | status = 0; |
07431ec8 HMH |
3140 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
3141 | return -EIO; | |
3142 | ||
0e74dc26 HMH |
3143 | if (update_rfk) |
3144 | wan_update_rfk(); | |
3145 | ||
07431ec8 HMH |
3146 | return 0; |
3147 | } | |
f74a27d4 | 3148 | |
d3a6ade4 HMH |
3149 | /* sysfs wan enable ---------------------------------------------------- */ |
3150 | static ssize_t wan_enable_show(struct device *dev, | |
3151 | struct device_attribute *attr, | |
3152 | char *buf) | |
3153 | { | |
3154 | int status; | |
3155 | ||
3156 | status = wan_get_radiosw(); | |
3157 | if (status < 0) | |
3158 | return status; | |
3159 | ||
0e74dc26 HMH |
3160 | return snprintf(buf, PAGE_SIZE, "%d\n", |
3161 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
3162 | } |
3163 | ||
3164 | static ssize_t wan_enable_store(struct device *dev, | |
3165 | struct device_attribute *attr, | |
3166 | const char *buf, size_t count) | |
3167 | { | |
3168 | unsigned long t; | |
3169 | int res; | |
3170 | ||
3171 | if (parse_strtoul(buf, 1, &t)) | |
3172 | return -EINVAL; | |
3173 | ||
0e74dc26 | 3174 | res = wan_set_radiosw(t, 1); |
d3a6ade4 HMH |
3175 | |
3176 | return (res) ? res : count; | |
3177 | } | |
3178 | ||
3179 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 3180 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3181 | wan_enable_show, wan_enable_store); |
3182 | ||
3183 | /* --------------------------------------------------------------------- */ | |
3184 | ||
3185 | static struct attribute *wan_attributes[] = { | |
3186 | &dev_attr_wan_enable.attr, | |
3187 | NULL | |
3188 | }; | |
3189 | ||
3190 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
3191 | .attrs = wan_attributes, |
3192 | }; | |
3193 | ||
0e74dc26 HMH |
3194 | static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) |
3195 | { | |
3196 | int wans = wan_get_radiosw(); | |
3197 | ||
3198 | if (wans < 0) | |
3199 | return wans; | |
3200 | ||
3201 | *state = wans; | |
3202 | return 0; | |
3203 | } | |
3204 | ||
3205 | static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) | |
3206 | { | |
3207 | return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3208 | } | |
3209 | ||
07431ec8 HMH |
3210 | static void wan_exit(void) |
3211 | { | |
0e74dc26 HMH |
3212 | if (tpacpi_wan_rfkill) |
3213 | rfkill_unregister(tpacpi_wan_rfkill); | |
3214 | ||
07431ec8 HMH |
3215 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3216 | &wan_attr_group); | |
3217 | } | |
3218 | ||
a5763f22 | 3219 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 3220 | { |
d3a6ade4 | 3221 | int res; |
d6fdd1e9 HMH |
3222 | int status = 0; |
3223 | ||
fe08bc4b HMH |
3224 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
3225 | ||
e0c7dfe7 | 3226 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3227 | |
d8fd94d9 | 3228 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
3229 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
3230 | ||
3231 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
3232 | str_supported(tp_features.wan), | |
3233 | status); | |
3234 | ||
a73f3091 HMH |
3235 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3236 | if (dbg_wwanemul) { | |
3237 | tp_features.wan = 1; | |
3238 | printk(TPACPI_INFO | |
3239 | "wwan switch emulation enabled\n"); | |
3240 | } else | |
3241 | #endif | |
3a872080 HMH |
3242 | if (tp_features.wan && |
3243 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
3244 | /* no wan hardware present in system */ | |
3245 | tp_features.wan = 0; | |
3246 | dbg_printk(TPACPI_DBG_INIT, | |
3247 | "wan hardware not installed\n"); | |
3248 | } | |
3249 | ||
0e74dc26 HMH |
3250 | if (!tp_features.wan) |
3251 | return 1; | |
3252 | ||
3253 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 3254 | &wan_attr_group); |
0e74dc26 HMH |
3255 | if (res) |
3256 | return res; | |
3257 | ||
3258 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, | |
3259 | &tpacpi_wan_rfkill, | |
3260 | RFKILL_TYPE_WWAN, | |
3261 | "tpacpi_wwan_sw", | |
3262 | tpacpi_wan_rfk_set, | |
3263 | tpacpi_wan_rfk_get); | |
3264 | if (res) { | |
3265 | wan_exit(); | |
3266 | return res; | |
d6fdd1e9 | 3267 | } |
fe08bc4b | 3268 | |
0e74dc26 | 3269 | return 0; |
42adb53c JF |
3270 | } |
3271 | ||
d3a6ade4 | 3272 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
3273 | static int wan_read(char *p) |
3274 | { | |
3275 | int len = 0; | |
d6fdd1e9 | 3276 | int status = wan_get_radiosw(); |
42adb53c | 3277 | |
d8fd94d9 | 3278 | if (!tp_features.wan) |
42adb53c | 3279 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 3280 | else { |
d6fdd1e9 | 3281 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3282 | (status == RFKILL_STATE_UNBLOCKED) ? |
3283 | "enabled" : "disabled"); | |
42adb53c JF |
3284 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3285 | } | |
3286 | ||
3287 | return len; | |
3288 | } | |
3289 | ||
3290 | static int wan_write(char *buf) | |
3291 | { | |
42adb53c | 3292 | char *cmd; |
42adb53c | 3293 | |
d8fd94d9 | 3294 | if (!tp_features.wan) |
42adb53c JF |
3295 | return -ENODEV; |
3296 | ||
3297 | while ((cmd = next_cmd(&buf))) { | |
3298 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3299 | wan_set_radiosw(1, 1); |
42adb53c | 3300 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3301 | wan_set_radiosw(0, 1); |
42adb53c JF |
3302 | } else |
3303 | return -EINVAL; | |
42adb53c JF |
3304 | } |
3305 | ||
42adb53c JF |
3306 | return 0; |
3307 | } | |
3308 | ||
a5763f22 HMH |
3309 | static struct ibm_struct wan_driver_data = { |
3310 | .name = "wan", | |
3311 | .read = wan_read, | |
3312 | .write = wan_write, | |
d3a6ade4 | 3313 | .exit = wan_exit, |
153f8220 | 3314 | .suspend = wan_suspend, |
a5763f22 HMH |
3315 | }; |
3316 | ||
56b6aeb0 HMH |
3317 | /************************************************************************* |
3318 | * Video subdriver | |
3319 | */ | |
3320 | ||
d7c1d17d HMH |
3321 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
3322 | ||
f74a27d4 HMH |
3323 | enum video_access_mode { |
3324 | TPACPI_VIDEO_NONE = 0, | |
3325 | TPACPI_VIDEO_570, /* 570 */ | |
3326 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
3327 | TPACPI_VIDEO_NEW, /* all others */ | |
3328 | }; | |
3329 | ||
3330 | enum { /* video status flags, based on VIDEO_570 */ | |
3331 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
3332 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
3333 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
3334 | }; | |
3335 | ||
3336 | enum { /* TPACPI_VIDEO_570 constants */ | |
3337 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
3338 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
3339 | * video_status_flags */ | |
3340 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
3341 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
3342 | }; | |
3343 | ||
9a8e1738 HMH |
3344 | static enum video_access_mode video_supported; |
3345 | static int video_orig_autosw; | |
78f81cc4 | 3346 | |
f74a27d4 HMH |
3347 | static int video_autosw_get(void); |
3348 | static int video_autosw_set(int enable); | |
3349 | ||
e0c7dfe7 | 3350 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 3351 | |
a5763f22 | 3352 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 3353 | { |
78f81cc4 BD |
3354 | int ivga; |
3355 | ||
fe08bc4b HMH |
3356 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
3357 | ||
e0c7dfe7 HMH |
3358 | TPACPI_ACPIHANDLE_INIT(vid); |
3359 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 3360 | |
78f81cc4 BD |
3361 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
3362 | /* G41, assume IVGA doesn't change */ | |
3363 | vid_handle = vid2_handle; | |
3364 | ||
3365 | if (!vid_handle) | |
3366 | /* video switching not supported on R30, R31 */ | |
efa27145 | 3367 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
3368 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
3369 | /* 570 */ | |
efa27145 | 3370 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
3371 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
3372 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3373 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
3374 | else |
3375 | /* all others */ | |
efa27145 | 3376 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 3377 | |
fe08bc4b HMH |
3378 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
3379 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
3380 | video_supported); | |
3381 | ||
5fba344c | 3382 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
3383 | } |
3384 | ||
56b6aeb0 HMH |
3385 | static void video_exit(void) |
3386 | { | |
83f34724 HMH |
3387 | dbg_printk(TPACPI_DBG_EXIT, |
3388 | "restoring original video autoswitch mode\n"); | |
3389 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 3390 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 3391 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
3392 | } |
3393 | ||
83f34724 | 3394 | static int video_outputsw_get(void) |
1da177e4 LT |
3395 | { |
3396 | int status = 0; | |
3397 | int i; | |
3398 | ||
83f34724 HMH |
3399 | switch (video_supported) { |
3400 | case TPACPI_VIDEO_570: | |
3401 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
3402 | TP_ACPI_VIDEO_570_PHSCMD)) | |
3403 | return -EIO; | |
3404 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
3405 | break; | |
3406 | case TPACPI_VIDEO_770: | |
3407 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3408 | return -EIO; | |
3409 | if (i) | |
3410 | status |= TP_ACPI_VIDEO_S_LCD; | |
3411 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3412 | return -EIO; | |
3413 | if (i) | |
3414 | status |= TP_ACPI_VIDEO_S_CRT; | |
3415 | break; | |
3416 | case TPACPI_VIDEO_NEW: | |
3417 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3418 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3419 | return -EIO; | |
3420 | if (i) | |
3421 | status |= TP_ACPI_VIDEO_S_CRT; | |
3422 | ||
3423 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3424 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3425 | return -EIO; | |
3426 | if (i) | |
3427 | status |= TP_ACPI_VIDEO_S_LCD; | |
3428 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3429 | return -EIO; | |
3430 | if (i) | |
3431 | status |= TP_ACPI_VIDEO_S_DVI; | |
3432 | break; | |
3433 | default: | |
3434 | return -ENOSYS; | |
78f81cc4 BD |
3435 | } |
3436 | ||
3437 | return status; | |
3438 | } | |
1da177e4 | 3439 | |
83f34724 | 3440 | static int video_outputsw_set(int status) |
78f81cc4 | 3441 | { |
83f34724 HMH |
3442 | int autosw; |
3443 | int res = 0; | |
3444 | ||
3445 | switch (video_supported) { | |
3446 | case TPACPI_VIDEO_570: | |
3447 | res = acpi_evalf(NULL, NULL, | |
3448 | "\\_SB.PHS2", "vdd", | |
3449 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3450 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3451 | break; | |
3452 | case TPACPI_VIDEO_770: | |
3453 | autosw = video_autosw_get(); | |
3454 | if (autosw < 0) | |
3455 | return autosw; | |
1da177e4 | 3456 | |
83f34724 HMH |
3457 | res = video_autosw_set(1); |
3458 | if (res) | |
3459 | return res; | |
3460 | res = acpi_evalf(vid_handle, NULL, | |
3461 | "ASWT", "vdd", status * 0x100, 0); | |
3462 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3463 | printk(TPACPI_ERR |
3464 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3465 | return -EIO; |
3466 | } | |
3467 | break; | |
3468 | case TPACPI_VIDEO_NEW: | |
3469 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3470 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3471 | break; |
3472 | default: | |
3473 | return -ENOSYS; | |
3474 | } | |
1da177e4 | 3475 | |
83f34724 | 3476 | return (res)? 0 : -EIO; |
1da177e4 LT |
3477 | } |
3478 | ||
83f34724 | 3479 | static int video_autosw_get(void) |
78f81cc4 | 3480 | { |
83f34724 | 3481 | int autosw = 0; |
78f81cc4 | 3482 | |
83f34724 HMH |
3483 | switch (video_supported) { |
3484 | case TPACPI_VIDEO_570: | |
3485 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3486 | return -EIO; | |
3487 | break; | |
3488 | case TPACPI_VIDEO_770: | |
3489 | case TPACPI_VIDEO_NEW: | |
3490 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3491 | return -EIO; | |
3492 | break; | |
3493 | default: | |
3494 | return -ENOSYS; | |
3495 | } | |
78f81cc4 | 3496 | |
83f34724 | 3497 | return autosw & 1; |
78f81cc4 BD |
3498 | } |
3499 | ||
83f34724 | 3500 | static int video_autosw_set(int enable) |
78f81cc4 | 3501 | { |
83f34724 HMH |
3502 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3503 | return -EIO; | |
3504 | return 0; | |
78f81cc4 BD |
3505 | } |
3506 | ||
83f34724 | 3507 | static int video_outputsw_cycle(void) |
78f81cc4 | 3508 | { |
83f34724 HMH |
3509 | int autosw = video_autosw_get(); |
3510 | int res; | |
78f81cc4 | 3511 | |
83f34724 HMH |
3512 | if (autosw < 0) |
3513 | return autosw; | |
78f81cc4 | 3514 | |
83f34724 HMH |
3515 | switch (video_supported) { |
3516 | case TPACPI_VIDEO_570: | |
3517 | res = video_autosw_set(1); | |
3518 | if (res) | |
3519 | return res; | |
3520 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3521 | break; | |
3522 | case TPACPI_VIDEO_770: | |
3523 | case TPACPI_VIDEO_NEW: | |
3524 | res = video_autosw_set(1); | |
3525 | if (res) | |
3526 | return res; | |
3527 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3528 | break; | |
3529 | default: | |
3530 | return -ENOSYS; | |
3531 | } | |
3532 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3533 | printk(TPACPI_ERR |
3534 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3535 | return -EIO; |
78f81cc4 BD |
3536 | } |
3537 | ||
83f34724 HMH |
3538 | return (res)? 0 : -EIO; |
3539 | } | |
3540 | ||
3541 | static int video_expand_toggle(void) | |
3542 | { | |
3543 | switch (video_supported) { | |
3544 | case TPACPI_VIDEO_570: | |
3545 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3546 | 0 : -EIO; | |
3547 | case TPACPI_VIDEO_770: | |
3548 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3549 | 0 : -EIO; | |
3550 | case TPACPI_VIDEO_NEW: | |
3551 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3552 | 0 : -EIO; | |
3553 | default: | |
3554 | return -ENOSYS; | |
3555 | } | |
3556 | /* not reached */ | |
78f81cc4 BD |
3557 | } |
3558 | ||
56b6aeb0 HMH |
3559 | static int video_read(char *p) |
3560 | { | |
83f34724 | 3561 | int status, autosw; |
56b6aeb0 HMH |
3562 | int len = 0; |
3563 | ||
83f34724 | 3564 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3565 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3566 | return len; | |
3567 | } | |
3568 | ||
83f34724 HMH |
3569 | status = video_outputsw_get(); |
3570 | if (status < 0) | |
3571 | return status; | |
3572 | ||
3573 | autosw = video_autosw_get(); | |
3574 | if (autosw < 0) | |
3575 | return autosw; | |
3576 | ||
56b6aeb0 HMH |
3577 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3578 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3579 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3580 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3581 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3582 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3583 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3584 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3585 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3586 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3587 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3588 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3589 | ||
3590 | return len; | |
3591 | } | |
3592 | ||
78f81cc4 | 3593 | static int video_write(char *buf) |
1da177e4 LT |
3594 | { |
3595 | char *cmd; | |
3596 | int enable, disable, status; | |
83f34724 | 3597 | int res; |
1da177e4 | 3598 | |
83f34724 | 3599 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3600 | return -ENODEV; |
3601 | ||
83f34724 HMH |
3602 | enable = 0; |
3603 | disable = 0; | |
1da177e4 LT |
3604 | |
3605 | while ((cmd = next_cmd(&buf))) { | |
3606 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3607 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3608 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3609 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3610 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3611 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3612 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3613 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3614 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3615 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3616 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3617 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3618 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3619 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3620 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3621 | res = video_autosw_set(1); |
3622 | if (res) | |
3623 | return res; | |
1da177e4 | 3624 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3625 | res = video_autosw_set(0); |
3626 | if (res) | |
3627 | return res; | |
1da177e4 | 3628 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3629 | res = video_outputsw_cycle(); |
3630 | if (res) | |
3631 | return res; | |
1da177e4 | 3632 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3633 | res = video_expand_toggle(); |
3634 | if (res) | |
3635 | return res; | |
1da177e4 LT |
3636 | } else |
3637 | return -EINVAL; | |
3638 | } | |
3639 | ||
3640 | if (enable || disable) { | |
83f34724 HMH |
3641 | status = video_outputsw_get(); |
3642 | if (status < 0) | |
3643 | return status; | |
3644 | res = video_outputsw_set((status & ~disable) | enable); | |
3645 | if (res) | |
3646 | return res; | |
1da177e4 LT |
3647 | } |
3648 | ||
3649 | return 0; | |
3650 | } | |
3651 | ||
a5763f22 HMH |
3652 | static struct ibm_struct video_driver_data = { |
3653 | .name = "video", | |
3654 | .read = video_read, | |
3655 | .write = video_write, | |
3656 | .exit = video_exit, | |
3657 | }; | |
3658 | ||
d7c1d17d HMH |
3659 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
3660 | ||
56b6aeb0 HMH |
3661 | /************************************************************************* |
3662 | * Light (thinklight) subdriver | |
3663 | */ | |
1da177e4 | 3664 | |
e0c7dfe7 HMH |
3665 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
3666 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 3667 | |
4fa6811b HMH |
3668 | static int light_get_status(void) |
3669 | { | |
3670 | int status = 0; | |
3671 | ||
3672 | if (tp_features.light_status) { | |
3673 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
3674 | return -EIO; | |
3675 | return (!!status); | |
3676 | } | |
3677 | ||
3678 | return -ENXIO; | |
3679 | } | |
3680 | ||
3681 | static int light_set_status(int status) | |
3682 | { | |
3683 | int rc; | |
3684 | ||
3685 | if (tp_features.light) { | |
3686 | if (cmos_handle) { | |
3687 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
3688 | (status)? | |
3689 | TP_CMOS_THINKLIGHT_ON : | |
3690 | TP_CMOS_THINKLIGHT_OFF); | |
3691 | } else { | |
3692 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
3693 | (status)? 1 : 0); | |
3694 | } | |
3695 | return (rc)? 0 : -EIO; | |
3696 | } | |
3697 | ||
3698 | return -ENXIO; | |
3699 | } | |
3700 | ||
e306501d HMH |
3701 | static void light_set_status_worker(struct work_struct *work) |
3702 | { | |
3703 | struct tpacpi_led_classdev *data = | |
3704 | container_of(work, struct tpacpi_led_classdev, work); | |
3705 | ||
3706 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
3707 | light_set_status((data->new_brightness != LED_OFF)); | |
3708 | } | |
3709 | ||
3710 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
3711 | enum led_brightness brightness) | |
3712 | { | |
3713 | struct tpacpi_led_classdev *data = | |
3714 | container_of(led_cdev, | |
3715 | struct tpacpi_led_classdev, | |
3716 | led_classdev); | |
3717 | data->new_brightness = brightness; | |
e0e3c061 | 3718 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
3719 | } |
3720 | ||
3721 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
3722 | { | |
3723 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
3724 | } | |
3725 | ||
3726 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
3727 | .led_classdev = { | |
3728 | .name = "tpacpi::thinklight", | |
3729 | .brightness_set = &light_sysfs_set, | |
3730 | .brightness_get = &light_sysfs_get, | |
3731 | } | |
3732 | }; | |
3733 | ||
a5763f22 | 3734 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 3735 | { |
9c0a76e1 | 3736 | int rc; |
e306501d | 3737 | |
fe08bc4b HMH |
3738 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
3739 | ||
e0c7dfe7 HMH |
3740 | TPACPI_ACPIHANDLE_INIT(ledb); |
3741 | TPACPI_ACPIHANDLE_INIT(lght); | |
3742 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 3743 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 3744 | |
78f81cc4 | 3745 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 3746 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 3747 | |
d8fd94d9 | 3748 | if (tp_features.light) |
78f81cc4 BD |
3749 | /* light status not supported on |
3750 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
3751 | tp_features.light_status = |
3752 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 3753 | |
9c0a76e1 HMH |
3754 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
3755 | str_supported(tp_features.light), | |
3756 | str_supported(tp_features.light_status)); | |
fe08bc4b | 3757 | |
9c0a76e1 HMH |
3758 | if (!tp_features.light) |
3759 | return 1; | |
3760 | ||
3761 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
3762 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
3763 | |
3764 | if (rc < 0) { | |
3765 | tp_features.light = 0; | |
3766 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
3767 | } else { |
3768 | rc = 0; | |
e306501d | 3769 | } |
9c0a76e1 | 3770 | |
e306501d HMH |
3771 | return rc; |
3772 | } | |
3773 | ||
3774 | static void light_exit(void) | |
3775 | { | |
3776 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
3777 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 3778 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
3779 | } |
3780 | ||
78f81cc4 | 3781 | static int light_read(char *p) |
1da177e4 LT |
3782 | { |
3783 | int len = 0; | |
4fa6811b | 3784 | int status; |
1da177e4 | 3785 | |
d8fd94d9 | 3786 | if (!tp_features.light) { |
78f81cc4 | 3787 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 3788 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
3789 | len += sprintf(p + len, "status:\t\tunknown\n"); |
3790 | len += sprintf(p + len, "commands:\ton, off\n"); | |
3791 | } else { | |
4fa6811b HMH |
3792 | status = light_get_status(); |
3793 | if (status < 0) | |
3794 | return status; | |
1da177e4 | 3795 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
3796 | len += sprintf(p + len, "commands:\ton, off\n"); |
3797 | } | |
1da177e4 LT |
3798 | |
3799 | return len; | |
3800 | } | |
3801 | ||
78f81cc4 | 3802 | static int light_write(char *buf) |
1da177e4 | 3803 | { |
1da177e4 | 3804 | char *cmd; |
4fa6811b | 3805 | int newstatus = 0; |
78f81cc4 | 3806 | |
d8fd94d9 | 3807 | if (!tp_features.light) |
78f81cc4 BD |
3808 | return -ENODEV; |
3809 | ||
1da177e4 LT |
3810 | while ((cmd = next_cmd(&buf))) { |
3811 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 3812 | newstatus = 1; |
1da177e4 | 3813 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 3814 | newstatus = 0; |
1da177e4 LT |
3815 | } else |
3816 | return -EINVAL; | |
1da177e4 LT |
3817 | } |
3818 | ||
4fa6811b | 3819 | return light_set_status(newstatus); |
1da177e4 LT |
3820 | } |
3821 | ||
a5763f22 HMH |
3822 | static struct ibm_struct light_driver_data = { |
3823 | .name = "light", | |
3824 | .read = light_read, | |
3825 | .write = light_write, | |
e306501d | 3826 | .exit = light_exit, |
a5763f22 HMH |
3827 | }; |
3828 | ||
56b6aeb0 HMH |
3829 | /************************************************************************* |
3830 | * Dock subdriver | |
3831 | */ | |
1da177e4 | 3832 | |
85998248 | 3833 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 3834 | |
f74a27d4 HMH |
3835 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
3836 | static int dock_read(char *p); | |
3837 | static int dock_write(char *buf); | |
3838 | ||
e0c7dfe7 | 3839 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
3840 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
3841 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
3842 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
3843 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
3844 | ||
5fba344c | 3845 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 3846 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 3847 | |
1ba90e3a TR |
3848 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
3849 | {PCI_ROOT_HID_STRING, 0}, | |
3850 | {"", 0}, | |
3851 | }; | |
3852 | ||
d94a7f16 HMH |
3853 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
3854 | { | |
3855 | .notify = dock_notify, | |
3856 | .handle = &dock_handle, | |
3857 | .type = ACPI_SYSTEM_NOTIFY, | |
3858 | }, | |
3859 | { | |
996fba08 HMH |
3860 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
3861 | * We just use it to get notifications of dock hotplug | |
3862 | * in very old thinkpads */ | |
1ba90e3a | 3863 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
3864 | .notify = dock_notify, |
3865 | .handle = &pci_handle, | |
3866 | .type = ACPI_SYSTEM_NOTIFY, | |
3867 | }, | |
3868 | }; | |
3869 | ||
3870 | static struct ibm_struct dock_driver_data[2] = { | |
3871 | { | |
3872 | .name = "dock", | |
3873 | .read = dock_read, | |
3874 | .write = dock_write, | |
3875 | .acpi = &ibm_dock_acpidriver[0], | |
3876 | }, | |
3877 | { | |
3878 | .name = "dock", | |
3879 | .acpi = &ibm_dock_acpidriver[1], | |
3880 | }, | |
3881 | }; | |
3882 | ||
1da177e4 LT |
3883 | #define dock_docked() (_sta(dock_handle) & 1) |
3884 | ||
a5763f22 | 3885 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3886 | { |
fe08bc4b HMH |
3887 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3888 | ||
e0c7dfe7 | 3889 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3890 | |
fe08bc4b HMH |
3891 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3892 | str_supported(dock_handle != NULL)); | |
3893 | ||
5fba344c HMH |
3894 | return (dock_handle)? 0 : 1; |
3895 | } | |
3896 | ||
d94a7f16 HMH |
3897 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3898 | { | |
3899 | int dock2_needed; | |
3900 | ||
3901 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3902 | ||
3903 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3904 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3905 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3906 | dock2_needed = (pci_handle != NULL); |
3907 | vdbg_printk(TPACPI_DBG_INIT, | |
3908 | "dock PCI handler for the TP 570 is %s\n", | |
3909 | str_supported(dock2_needed)); | |
3910 | } else { | |
3911 | vdbg_printk(TPACPI_DBG_INIT, | |
3912 | "dock subdriver part 2 not required\n"); | |
3913 | dock2_needed = 0; | |
3914 | } | |
3915 | ||
3916 | return (dock2_needed)? 0 : 1; | |
3917 | } | |
3918 | ||
56b6aeb0 HMH |
3919 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3920 | { | |
3921 | int docked = dock_docked(); | |
1ba90e3a TR |
3922 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3923 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3924 | int data; |
56b6aeb0 HMH |
3925 | |
3926 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3927 | data = 1; /* button */ |
56b6aeb0 | 3928 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3929 | data = 3; /* dock */ |
56b6aeb0 | 3930 | else if (event == 3 && docked) |
962ce8ca | 3931 | data = 1; /* button */ |
56b6aeb0 | 3932 | else if (event == 3 && !docked) |
962ce8ca | 3933 | data = 2; /* undock */ |
56b6aeb0 | 3934 | else if (event == 0 && docked) |
962ce8ca | 3935 | data = 3; /* dock */ |
56b6aeb0 | 3936 | else { |
e0c7dfe7 | 3937 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3938 | event, _sta(dock_handle)); |
962ce8ca | 3939 | data = 0; /* unknown */ |
56b6aeb0 | 3940 | } |
14e04fb3 | 3941 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca | 3942 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 3943 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 3944 | event, data); |
56b6aeb0 HMH |
3945 | } |
3946 | ||
78f81cc4 | 3947 | static int dock_read(char *p) |
1da177e4 LT |
3948 | { |
3949 | int len = 0; | |
3950 | int docked = dock_docked(); | |
3951 | ||
3952 | if (!dock_handle) | |
3953 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3954 | else if (!docked) | |
3955 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3956 | else { | |
3957 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3958 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3959 | } | |
3960 | ||
3961 | return len; | |
3962 | } | |
3963 | ||
78f81cc4 | 3964 | static int dock_write(char *buf) |
1da177e4 LT |
3965 | { |
3966 | char *cmd; | |
3967 | ||
3968 | if (!dock_docked()) | |
78f81cc4 | 3969 | return -ENODEV; |
1da177e4 LT |
3970 | |
3971 | while ((cmd = next_cmd(&buf))) { | |
3972 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3973 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3974 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3975 | return -EIO; |
3976 | } else if (strlencmp(cmd, "dock") == 0) { | |
3977 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3978 | return -EIO; | |
3979 | } else | |
3980 | return -EINVAL; | |
1da177e4 | 3981 | } |
56b6aeb0 HMH |
3982 | |
3983 | return 0; | |
1da177e4 | 3984 | } |
56b6aeb0 | 3985 | |
85998248 | 3986 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3987 | |
3988 | /************************************************************************* | |
3989 | * Bay subdriver | |
3990 | */ | |
1da177e4 | 3991 | |
85998248 | 3992 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3993 | |
e0c7dfe7 | 3994 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3995 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3996 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3997 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3998 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3999 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
4000 | "_EJ0", /* all others */ |
4001 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 4002 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
4003 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
4004 | ); /* all others */ | |
e0c7dfe7 | 4005 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
4006 | "_EJ0", /* 770x */ |
4007 | ); /* all others */ | |
4008 | ||
a5763f22 | 4009 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 4010 | { |
fe08bc4b HMH |
4011 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
4012 | ||
e0c7dfe7 | 4013 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 4014 | if (bay_handle) |
e0c7dfe7 HMH |
4015 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
4016 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 4017 | if (bay2_handle) |
e0c7dfe7 | 4018 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 4019 | |
d8fd94d9 HMH |
4020 | tp_features.bay_status = bay_handle && |
4021 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
4022 | tp_features.bay_status2 = bay2_handle && | |
4023 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 4024 | |
d8fd94d9 HMH |
4025 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
4026 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
4027 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
4028 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 4029 | |
fe08bc4b HMH |
4030 | vdbg_printk(TPACPI_DBG_INIT, |
4031 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
4032 | str_supported(tp_features.bay_status), |
4033 | str_supported(tp_features.bay_eject), | |
4034 | str_supported(tp_features.bay_status2), | |
4035 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 4036 | |
d8fd94d9 HMH |
4037 | return (tp_features.bay_status || tp_features.bay_eject || |
4038 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
4039 | } |
4040 | ||
56b6aeb0 HMH |
4041 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
4042 | { | |
14e04fb3 | 4043 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca | 4044 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 4045 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 4046 | event, 0); |
56b6aeb0 HMH |
4047 | } |
4048 | ||
78f81cc4 BD |
4049 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
4050 | ||
4051 | static int bay_read(char *p) | |
1da177e4 LT |
4052 | { |
4053 | int len = 0; | |
78f81cc4 BD |
4054 | int occupied = bay_occupied(bay); |
4055 | int occupied2 = bay_occupied(bay2); | |
4056 | int eject, eject2; | |
4057 | ||
d8fd94d9 HMH |
4058 | len += sprintf(p + len, "status:\t\t%s\n", |
4059 | tp_features.bay_status ? | |
4060 | (occupied ? "occupied" : "unoccupied") : | |
4061 | "not supported"); | |
4062 | if (tp_features.bay_status2) | |
78f81cc4 BD |
4063 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
4064 | "occupied" : "unoccupied"); | |
4065 | ||
d8fd94d9 HMH |
4066 | eject = tp_features.bay_eject && occupied; |
4067 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
4068 | |
4069 | if (eject && eject2) | |
4070 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
4071 | else if (eject) | |
1da177e4 | 4072 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
4073 | else if (eject2) |
4074 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
4075 | |
4076 | return len; | |
4077 | } | |
4078 | ||
78f81cc4 | 4079 | static int bay_write(char *buf) |
1da177e4 LT |
4080 | { |
4081 | char *cmd; | |
4082 | ||
d8fd94d9 | 4083 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
4084 | return -ENODEV; |
4085 | ||
1da177e4 | 4086 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 4087 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
4088 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
4089 | return -EIO; | |
d8fd94d9 | 4090 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
4091 | strlencmp(cmd, "eject2") == 0) { |
4092 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
4093 | return -EIO; |
4094 | } else | |
4095 | return -EINVAL; | |
4096 | } | |
4097 | ||
4098 | return 0; | |
78f81cc4 | 4099 | } |
a5763f22 | 4100 | |
8d376cd6 HMH |
4101 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
4102 | .notify = bay_notify, | |
4103 | .handle = &bay_handle, | |
4104 | .type = ACPI_SYSTEM_NOTIFY, | |
4105 | }; | |
4106 | ||
a5763f22 HMH |
4107 | static struct ibm_struct bay_driver_data = { |
4108 | .name = "bay", | |
4109 | .read = bay_read, | |
4110 | .write = bay_write, | |
8d376cd6 | 4111 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
4112 | }; |
4113 | ||
85998248 | 4114 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 4115 | |
56b6aeb0 HMH |
4116 | /************************************************************************* |
4117 | * CMOS subdriver | |
4118 | */ | |
4119 | ||
b616004c HMH |
4120 | /* sysfs cmos_command -------------------------------------------------- */ |
4121 | static ssize_t cmos_command_store(struct device *dev, | |
4122 | struct device_attribute *attr, | |
4123 | const char *buf, size_t count) | |
4124 | { | |
4125 | unsigned long cmos_cmd; | |
4126 | int res; | |
4127 | ||
4128 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4129 | return -EINVAL; | |
4130 | ||
4131 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4132 | return (res)? res : count; | |
4133 | } | |
4134 | ||
4135 | static struct device_attribute dev_attr_cmos_command = | |
4136 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4137 | ||
4138 | /* --------------------------------------------------------------------- */ | |
4139 | ||
a5763f22 | 4140 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4141 | { |
b616004c HMH |
4142 | int res; |
4143 | ||
fe08bc4b HMH |
4144 | vdbg_printk(TPACPI_DBG_INIT, |
4145 | "initializing cmos commands subdriver\n"); | |
4146 | ||
e0c7dfe7 | 4147 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4148 | |
fe08bc4b HMH |
4149 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4150 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4151 | |
4152 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4153 | if (res) | |
4154 | return res; | |
4155 | ||
5fba344c HMH |
4156 | return (cmos_handle)? 0 : 1; |
4157 | } | |
4158 | ||
b616004c HMH |
4159 | static void cmos_exit(void) |
4160 | { | |
4161 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4162 | } | |
4163 | ||
78f81cc4 | 4164 | static int cmos_read(char *p) |
1da177e4 LT |
4165 | { |
4166 | int len = 0; | |
4167 | ||
78f81cc4 BD |
4168 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4169 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
4170 | if (!cmos_handle) |
4171 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4172 | else { | |
4173 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 4174 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
4175 | } |
4176 | ||
4177 | return len; | |
4178 | } | |
4179 | ||
78f81cc4 | 4180 | static int cmos_write(char *buf) |
1da177e4 LT |
4181 | { |
4182 | char *cmd; | |
c9bea99c | 4183 | int cmos_cmd, res; |
1da177e4 LT |
4184 | |
4185 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4186 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4187 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4188 | /* cmos_cmd set */ |
4189 | } else | |
4190 | return -EINVAL; | |
4191 | ||
c9bea99c HMH |
4192 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4193 | if (res) | |
4194 | return res; | |
1da177e4 LT |
4195 | } |
4196 | ||
4197 | return 0; | |
78f81cc4 BD |
4198 | } |
4199 | ||
a5763f22 HMH |
4200 | static struct ibm_struct cmos_driver_data = { |
4201 | .name = "cmos", | |
4202 | .read = cmos_read, | |
4203 | .write = cmos_write, | |
b616004c | 4204 | .exit = cmos_exit, |
a5763f22 | 4205 | }; |
56b6aeb0 HMH |
4206 | |
4207 | /************************************************************************* | |
4208 | * LED subdriver | |
4209 | */ | |
4210 | ||
f74a27d4 HMH |
4211 | enum led_access_mode { |
4212 | TPACPI_LED_NONE = 0, | |
4213 | TPACPI_LED_570, /* 570 */ | |
4214 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4215 | TPACPI_LED_NEW, /* all others */ | |
4216 | }; | |
4217 | ||
4218 | enum { /* For TPACPI_LED_OLD */ | |
4219 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
4220 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
4221 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
4222 | }; | |
4223 | ||
4fa6811b HMH |
4224 | enum led_status_t { |
4225 | TPACPI_LED_OFF = 0, | |
4226 | TPACPI_LED_ON, | |
4227 | TPACPI_LED_BLINK, | |
4228 | }; | |
4229 | ||
9a8e1738 | 4230 | static enum led_access_mode led_supported; |
78f81cc4 | 4231 | |
e0c7dfe7 | 4232 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
4233 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
4234 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
4235 | "LED", /* all others */ |
4236 | ); /* R30, R31 */ | |
4237 | ||
af116101 HMH |
4238 | #define TPACPI_LED_NUMLEDS 8 |
4239 | static struct tpacpi_led_classdev *tpacpi_leds; | |
4240 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 4241 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
4242 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
4243 | "tpacpi::power", | |
4244 | "tpacpi:orange:batt", | |
4245 | "tpacpi:green:batt", | |
4246 | "tpacpi::dock_active", | |
4247 | "tpacpi::bay_active", | |
4248 | "tpacpi::dock_batt", | |
4249 | "tpacpi::unknown_led", | |
4250 | "tpacpi::standby", | |
4251 | }; | |
4252 | ||
24e45bbe | 4253 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
4254 | { |
4255 | int status; | |
af116101 | 4256 | enum led_status_t led_s; |
4fa6811b HMH |
4257 | |
4258 | switch (led_supported) { | |
4259 | case TPACPI_LED_570: | |
4260 | if (!acpi_evalf(ec_handle, | |
4261 | &status, "GLED", "dd", 1 << led)) | |
4262 | return -EIO; | |
af116101 | 4263 | led_s = (status == 0)? |
4fa6811b HMH |
4264 | TPACPI_LED_OFF : |
4265 | ((status == 1)? | |
4266 | TPACPI_LED_ON : | |
4267 | TPACPI_LED_BLINK); | |
af116101 HMH |
4268 | tpacpi_led_state_cache[led] = led_s; |
4269 | return led_s; | |
4fa6811b HMH |
4270 | default: |
4271 | return -ENXIO; | |
4272 | } | |
4273 | ||
4274 | /* not reached */ | |
4275 | } | |
4276 | ||
24e45bbe HMH |
4277 | static int led_set_status(const unsigned int led, |
4278 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
4279 | { |
4280 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
4281 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
4282 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
4283 | |
4284 | int rc = 0; | |
4285 | ||
4286 | switch (led_supported) { | |
4287 | case TPACPI_LED_570: | |
24e45bbe HMH |
4288 | /* 570 */ |
4289 | if (led > 7) | |
4290 | return -EINVAL; | |
4291 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4292 | (1 << led), led_sled_arg1[ledstatus])) | |
4293 | rc = -EIO; | |
4294 | break; | |
4fa6811b | 4295 | case TPACPI_LED_OLD: |
24e45bbe HMH |
4296 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
4297 | if (led > 7) | |
4298 | return -EINVAL; | |
4299 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); | |
4300 | if (rc >= 0) | |
4301 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
4302 | (ledstatus == TPACPI_LED_BLINK) << led); | |
4303 | if (rc >= 0) | |
4304 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
4305 | (ledstatus != TPACPI_LED_OFF) << led); | |
4306 | break; | |
4fa6811b | 4307 | case TPACPI_LED_NEW: |
24e45bbe HMH |
4308 | /* all others */ |
4309 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4310 | led, led_led_arg1[ledstatus])) | |
4311 | rc = -EIO; | |
4312 | break; | |
4fa6811b HMH |
4313 | default: |
4314 | rc = -ENXIO; | |
4315 | } | |
4316 | ||
af116101 HMH |
4317 | if (!rc) |
4318 | tpacpi_led_state_cache[led] = ledstatus; | |
4319 | ||
4320 | return rc; | |
4321 | } | |
4322 | ||
4323 | static void led_sysfs_set_status(unsigned int led, | |
4324 | enum led_brightness brightness) | |
4325 | { | |
4326 | led_set_status(led, | |
4327 | (brightness == LED_OFF) ? | |
4328 | TPACPI_LED_OFF : | |
4329 | (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ? | |
4330 | TPACPI_LED_BLINK : TPACPI_LED_ON); | |
4331 | } | |
4332 | ||
4333 | static void led_set_status_worker(struct work_struct *work) | |
4334 | { | |
4335 | struct tpacpi_led_classdev *data = | |
4336 | container_of(work, struct tpacpi_led_classdev, work); | |
4337 | ||
4338 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
4339 | led_sysfs_set_status(data->led, data->new_brightness); | |
4340 | } | |
4341 | ||
4342 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
4343 | enum led_brightness brightness) | |
4344 | { | |
4345 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4346 | struct tpacpi_led_classdev, led_classdev); | |
4347 | ||
4348 | data->new_brightness = brightness; | |
e0e3c061 | 4349 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4350 | } |
4351 | ||
4352 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
4353 | unsigned long *delay_on, unsigned long *delay_off) | |
4354 | { | |
4355 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4356 | struct tpacpi_led_classdev, led_classdev); | |
4357 | ||
4358 | /* Can we choose the flash rate? */ | |
4359 | if (*delay_on == 0 && *delay_off == 0) { | |
4360 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
4361 | *delay_on = 500; /* ms */ | |
4362 | *delay_off = 500; /* ms */ | |
4363 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
4364 | return -EINVAL; | |
4365 | ||
4366 | data->new_brightness = TPACPI_LED_BLINK; | |
e0e3c061 | 4367 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4368 | |
4369 | return 0; | |
4370 | } | |
4371 | ||
4372 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
4373 | { | |
4374 | int rc; | |
4375 | ||
4376 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4377 | struct tpacpi_led_classdev, led_classdev); | |
4378 | ||
4379 | rc = led_get_status(data->led); | |
4380 | ||
4381 | if (rc == TPACPI_LED_OFF || rc < 0) | |
4382 | rc = LED_OFF; /* no error handling in led class :( */ | |
4383 | else | |
4384 | rc = LED_FULL; | |
4385 | ||
4fa6811b HMH |
4386 | return rc; |
4387 | } | |
4388 | ||
af116101 HMH |
4389 | static void led_exit(void) |
4390 | { | |
4391 | unsigned int i; | |
4392 | ||
4393 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4394 | if (tpacpi_leds[i].led_classdev.name) | |
4395 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
4396 | } | |
4397 | ||
4398 | kfree(tpacpi_leds); | |
af116101 HMH |
4399 | } |
4400 | ||
a5763f22 | 4401 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4402 | { |
af116101 HMH |
4403 | unsigned int i; |
4404 | int rc; | |
4405 | ||
fe08bc4b HMH |
4406 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
4407 | ||
e0c7dfe7 | 4408 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 4409 | |
78f81cc4 BD |
4410 | if (!led_handle) |
4411 | /* led not supported on R30, R31 */ | |
efa27145 | 4412 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
4413 | else if (strlencmp(led_path, "SLED") == 0) |
4414 | /* 570 */ | |
efa27145 | 4415 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
4416 | else if (strlencmp(led_path, "SYSL") == 0) |
4417 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 4418 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
4419 | else |
4420 | /* all others */ | |
efa27145 | 4421 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 4422 | |
fe08bc4b HMH |
4423 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
4424 | str_supported(led_supported), led_supported); | |
4425 | ||
af116101 HMH |
4426 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
4427 | GFP_KERNEL); | |
4428 | if (!tpacpi_leds) { | |
4429 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
4430 | return -ENOMEM; | |
4431 | } | |
4432 | ||
4433 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4434 | tpacpi_leds[i].led = i; | |
4435 | ||
4436 | tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set; | |
4437 | tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set; | |
4438 | if (led_supported == TPACPI_LED_570) | |
4439 | tpacpi_leds[i].led_classdev.brightness_get = | |
4440 | &led_sysfs_get; | |
4441 | ||
4442 | tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i]; | |
4443 | ||
4444 | INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker); | |
4445 | ||
4446 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4447 | &tpacpi_leds[i].led_classdev); | |
4448 | if (rc < 0) { | |
4449 | tpacpi_leds[i].led_classdev.name = NULL; | |
4450 | led_exit(); | |
4451 | return rc; | |
4452 | } | |
4453 | } | |
4454 | ||
5fba344c | 4455 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
4456 | } |
4457 | ||
4fa6811b HMH |
4458 | #define str_led_status(s) \ |
4459 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
4460 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
4461 | |
4462 | static int led_read(char *p) | |
1da177e4 LT |
4463 | { |
4464 | int len = 0; | |
4465 | ||
78f81cc4 BD |
4466 | if (!led_supported) { |
4467 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4468 | return len; | |
4469 | } | |
4470 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4471 | ||
efa27145 | 4472 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
4473 | /* 570 */ |
4474 | int i, status; | |
4475 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
4476 | status = led_get_status(i); |
4477 | if (status < 0) | |
78f81cc4 BD |
4478 | return -EIO; |
4479 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 4480 | i, str_led_status(status)); |
78f81cc4 BD |
4481 | } |
4482 | } | |
4483 | ||
1da177e4 | 4484 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 4485 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
4486 | |
4487 | return len; | |
4488 | } | |
4489 | ||
78f81cc4 | 4490 | static int led_write(char *buf) |
1da177e4 LT |
4491 | { |
4492 | char *cmd; | |
4fa6811b HMH |
4493 | int led, rc; |
4494 | enum led_status_t s; | |
78f81cc4 BD |
4495 | |
4496 | if (!led_supported) | |
4497 | return -ENODEV; | |
1da177e4 LT |
4498 | |
4499 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 4500 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
4501 | return -EINVAL; |
4502 | ||
78f81cc4 | 4503 | if (strstr(cmd, "off")) { |
4fa6811b | 4504 | s = TPACPI_LED_OFF; |
1da177e4 | 4505 | } else if (strstr(cmd, "on")) { |
4fa6811b | 4506 | s = TPACPI_LED_ON; |
78f81cc4 | 4507 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 4508 | s = TPACPI_LED_BLINK; |
78f81cc4 | 4509 | } else { |
4fa6811b | 4510 | return -EINVAL; |
78f81cc4 | 4511 | } |
4fa6811b HMH |
4512 | |
4513 | rc = led_set_status(led, s); | |
4514 | if (rc < 0) | |
4515 | return rc; | |
78f81cc4 BD |
4516 | } |
4517 | ||
4518 | return 0; | |
4519 | } | |
4520 | ||
a5763f22 HMH |
4521 | static struct ibm_struct led_driver_data = { |
4522 | .name = "led", | |
4523 | .read = led_read, | |
4524 | .write = led_write, | |
af116101 | 4525 | .exit = led_exit, |
a5763f22 HMH |
4526 | }; |
4527 | ||
56b6aeb0 HMH |
4528 | /************************************************************************* |
4529 | * Beep subdriver | |
4530 | */ | |
4531 | ||
e0c7dfe7 | 4532 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 4533 | |
a5763f22 | 4534 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 4535 | { |
fe08bc4b HMH |
4536 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
4537 | ||
e0c7dfe7 | 4538 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 4539 | |
fe08bc4b HMH |
4540 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
4541 | str_supported(beep_handle != NULL)); | |
4542 | ||
5fba344c HMH |
4543 | return (beep_handle)? 0 : 1; |
4544 | } | |
4545 | ||
78f81cc4 BD |
4546 | static int beep_read(char *p) |
4547 | { | |
4548 | int len = 0; | |
4549 | ||
4550 | if (!beep_handle) | |
4551 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4552 | else { | |
4553 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4554 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
4555 | } | |
4556 | ||
4557 | return len; | |
4558 | } | |
4559 | ||
4560 | static int beep_write(char *buf) | |
4561 | { | |
4562 | char *cmd; | |
4563 | int beep_cmd; | |
4564 | ||
4565 | if (!beep_handle) | |
4566 | return -ENODEV; | |
4567 | ||
4568 | while ((cmd = next_cmd(&buf))) { | |
4569 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
4570 | beep_cmd >= 0 && beep_cmd <= 17) { | |
4571 | /* beep_cmd set */ | |
4572 | } else | |
4573 | return -EINVAL; | |
4574 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
4575 | return -EIO; | |
4576 | } | |
4577 | ||
4578 | return 0; | |
4579 | } | |
4580 | ||
a5763f22 HMH |
4581 | static struct ibm_struct beep_driver_data = { |
4582 | .name = "beep", | |
4583 | .read = beep_read, | |
4584 | .write = beep_write, | |
4585 | }; | |
4586 | ||
56b6aeb0 HMH |
4587 | /************************************************************************* |
4588 | * Thermal subdriver | |
4589 | */ | |
78f81cc4 | 4590 | |
f74a27d4 HMH |
4591 | enum thermal_access_mode { |
4592 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
4593 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
4594 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
4595 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
4596 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
4597 | }; | |
4598 | ||
4599 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
4600 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
4601 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
4602 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
4603 | }; | |
4604 | ||
4605 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
4606 | struct ibm_thermal_sensors_struct { | |
4607 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
4608 | }; | |
4609 | ||
a26f878a | 4610 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 4611 | |
b21a15f6 HMH |
4612 | /* idx is zero-based */ |
4613 | static int thermal_get_sensor(int idx, s32 *value) | |
4614 | { | |
4615 | int t; | |
4616 | s8 tmp; | |
4617 | char tmpi[5]; | |
4618 | ||
4619 | t = TP_EC_THERMAL_TMP0; | |
4620 | ||
4621 | switch (thermal_read_mode) { | |
4622 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
4623 | case TPACPI_THERMAL_TPEC_16: | |
4624 | if (idx >= 8 && idx <= 15) { | |
4625 | t = TP_EC_THERMAL_TMP8; | |
4626 | idx -= 8; | |
4627 | } | |
4628 | /* fallthrough */ | |
4629 | #endif | |
4630 | case TPACPI_THERMAL_TPEC_8: | |
4631 | if (idx <= 7) { | |
4632 | if (!acpi_ec_read(t + idx, &tmp)) | |
4633 | return -EIO; | |
4634 | *value = tmp * 1000; | |
4635 | return 0; | |
4636 | } | |
4637 | break; | |
4638 | ||
4639 | case TPACPI_THERMAL_ACPI_UPDT: | |
4640 | if (idx <= 7) { | |
4641 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4642 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
4643 | return -EIO; | |
4644 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4645 | return -EIO; | |
4646 | *value = (t - 2732) * 100; | |
4647 | return 0; | |
4648 | } | |
4649 | break; | |
4650 | ||
4651 | case TPACPI_THERMAL_ACPI_TMP07: | |
4652 | if (idx <= 7) { | |
4653 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4654 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4655 | return -EIO; | |
4656 | if (t > 127 || t < -127) | |
4657 | t = TP_EC_THERMAL_TMP_NA; | |
4658 | *value = t * 1000; | |
4659 | return 0; | |
4660 | } | |
4661 | break; | |
4662 | ||
4663 | case TPACPI_THERMAL_NONE: | |
4664 | default: | |
4665 | return -ENOSYS; | |
4666 | } | |
4667 | ||
4668 | return -EINVAL; | |
4669 | } | |
4670 | ||
4671 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
4672 | { | |
4673 | int res, i; | |
4674 | int n; | |
4675 | ||
4676 | n = 8; | |
4677 | i = 0; | |
4678 | ||
4679 | if (!s) | |
4680 | return -EINVAL; | |
4681 | ||
4682 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
4683 | n = 16; | |
4684 | ||
35ff8b9f | 4685 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
4686 | res = thermal_get_sensor(i, &s->temp[i]); |
4687 | if (res) | |
4688 | return res; | |
4689 | } | |
4690 | ||
4691 | return n; | |
4692 | } | |
f74a27d4 | 4693 | |
2c37aa4e HMH |
4694 | /* sysfs temp##_input -------------------------------------------------- */ |
4695 | ||
4696 | static ssize_t thermal_temp_input_show(struct device *dev, | |
4697 | struct device_attribute *attr, | |
4698 | char *buf) | |
4699 | { | |
4700 | struct sensor_device_attribute *sensor_attr = | |
4701 | to_sensor_dev_attr(attr); | |
4702 | int idx = sensor_attr->index; | |
4703 | s32 value; | |
4704 | int res; | |
4705 | ||
4706 | res = thermal_get_sensor(idx, &value); | |
4707 | if (res) | |
4708 | return res; | |
4709 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
4710 | return -ENXIO; | |
4711 | ||
4712 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
4713 | } | |
4714 | ||
4715 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
4716 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
4717 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
4718 | |
4719 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
4720 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
4721 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
4722 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
4723 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
4724 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
4725 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
4726 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
4727 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
4728 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
4729 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
4730 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
4731 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
4732 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
4733 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
4734 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
4735 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
4736 | }; | |
4737 | ||
4738 | #define THERMAL_ATTRS(X) \ | |
4739 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
4740 | ||
4741 | static struct attribute *thermal_temp_input_attr[] = { | |
4742 | THERMAL_ATTRS(8), | |
4743 | THERMAL_ATTRS(9), | |
4744 | THERMAL_ATTRS(10), | |
4745 | THERMAL_ATTRS(11), | |
4746 | THERMAL_ATTRS(12), | |
4747 | THERMAL_ATTRS(13), | |
4748 | THERMAL_ATTRS(14), | |
4749 | THERMAL_ATTRS(15), | |
4750 | THERMAL_ATTRS(0), | |
4751 | THERMAL_ATTRS(1), | |
4752 | THERMAL_ATTRS(2), | |
4753 | THERMAL_ATTRS(3), | |
4754 | THERMAL_ATTRS(4), | |
4755 | THERMAL_ATTRS(5), | |
4756 | THERMAL_ATTRS(6), | |
4757 | THERMAL_ATTRS(7), | |
4758 | NULL | |
4759 | }; | |
4760 | ||
4761 | static const struct attribute_group thermal_temp_input16_group = { | |
4762 | .attrs = thermal_temp_input_attr | |
4763 | }; | |
4764 | ||
4765 | static const struct attribute_group thermal_temp_input8_group = { | |
4766 | .attrs = &thermal_temp_input_attr[8] | |
4767 | }; | |
4768 | ||
4769 | #undef THERMAL_SENSOR_ATTR_TEMP | |
4770 | #undef THERMAL_ATTRS | |
4771 | ||
4772 | /* --------------------------------------------------------------------- */ | |
4773 | ||
a5763f22 | 4774 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4775 | { |
60eb0b35 HMH |
4776 | u8 t, ta1, ta2; |
4777 | int i; | |
5fba344c | 4778 | int acpi_tmp7; |
2c37aa4e | 4779 | int res; |
5fba344c | 4780 | |
fe08bc4b HMH |
4781 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
4782 | ||
5fba344c | 4783 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 4784 | |
3d6f99ca | 4785 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
4786 | /* |
4787 | * Direct EC access mode: sensors at registers | |
4788 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
4789 | * non-implemented, thermal sensors return 0x80 when | |
4790 | * not available | |
4791 | */ | |
78f81cc4 | 4792 | |
60eb0b35 HMH |
4793 | ta1 = ta2 = 0; |
4794 | for (i = 0; i < 8; i++) { | |
04cc862c | 4795 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
4796 | ta1 |= t; |
4797 | } else { | |
4798 | ta1 = 0; | |
4799 | break; | |
4800 | } | |
04cc862c | 4801 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
4802 | ta2 |= t; |
4803 | } else { | |
4804 | ta1 = 0; | |
4805 | break; | |
4806 | } | |
4807 | } | |
4808 | if (ta1 == 0) { | |
4809 | /* This is sheer paranoia, but we handle it anyway */ | |
4810 | if (acpi_tmp7) { | |
e0c7dfe7 | 4811 | printk(TPACPI_ERR |
60eb0b35 | 4812 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
4813 | "falling back to ACPI TMPx access " |
4814 | "mode\n"); | |
efa27145 | 4815 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 4816 | } else { |
e0c7dfe7 | 4817 | printk(TPACPI_ERR |
60eb0b35 HMH |
4818 | "ThinkPad ACPI EC access misbehaving, " |
4819 | "disabling thermal sensors access\n"); | |
efa27145 | 4820 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
4821 | } |
4822 | } else { | |
4823 | thermal_read_mode = | |
4824 | (ta2 != 0) ? | |
efa27145 | 4825 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
4826 | } |
4827 | } else if (acpi_tmp7) { | |
a26f878a HMH |
4828 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
4829 | /* 600e/x, 770e, 770x */ | |
efa27145 | 4830 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
4831 | } else { |
4832 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 4833 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
4834 | } |
4835 | } else { | |
4836 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 4837 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 4838 | } |
78f81cc4 | 4839 | |
fe08bc4b HMH |
4840 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
4841 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
4842 | thermal_read_mode); | |
4843 | ||
35ff8b9f | 4844 | switch (thermal_read_mode) { |
2c37aa4e | 4845 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4846 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4847 | &thermal_temp_input16_group); |
4848 | if (res) | |
4849 | return res; | |
4850 | break; | |
4851 | case TPACPI_THERMAL_TPEC_8: | |
4852 | case TPACPI_THERMAL_ACPI_TMP07: | |
4853 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4854 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4855 | &thermal_temp_input8_group); |
4856 | if (res) | |
4857 | return res; | |
4858 | break; | |
4859 | case TPACPI_THERMAL_NONE: | |
4860 | default: | |
4861 | return 1; | |
4862 | } | |
4863 | ||
4864 | return 0; | |
4865 | } | |
4866 | ||
4867 | static void thermal_exit(void) | |
4868 | { | |
35ff8b9f | 4869 | switch (thermal_read_mode) { |
2c37aa4e | 4870 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 4871 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4872 | &thermal_temp_input16_group); |
4873 | break; | |
4874 | case TPACPI_THERMAL_TPEC_8: | |
4875 | case TPACPI_THERMAL_ACPI_TMP07: | |
4876 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 4877 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
4878 | &thermal_temp_input16_group); |
4879 | break; | |
4880 | case TPACPI_THERMAL_NONE: | |
4881 | default: | |
4882 | break; | |
4883 | } | |
78f81cc4 BD |
4884 | } |
4885 | ||
a26f878a HMH |
4886 | static int thermal_read(char *p) |
4887 | { | |
4888 | int len = 0; | |
4889 | int n, i; | |
4890 | struct ibm_thermal_sensors_struct t; | |
4891 | ||
4892 | n = thermal_get_sensors(&t); | |
4893 | if (unlikely(n < 0)) | |
4894 | return n; | |
4895 | ||
4896 | len += sprintf(p + len, "temperatures:\t"); | |
4897 | ||
4898 | if (n > 0) { | |
4899 | for (i = 0; i < (n - 1); i++) | |
4900 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
4901 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
4902 | } else | |
4903 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
4904 | |
4905 | return len; | |
4906 | } | |
4907 | ||
a5763f22 HMH |
4908 | static struct ibm_struct thermal_driver_data = { |
4909 | .name = "thermal", | |
4910 | .read = thermal_read, | |
2c37aa4e | 4911 | .exit = thermal_exit, |
a5763f22 HMH |
4912 | }; |
4913 | ||
56b6aeb0 HMH |
4914 | /************************************************************************* |
4915 | * EC Dump subdriver | |
4916 | */ | |
4917 | ||
78f81cc4 BD |
4918 | static u8 ecdump_regs[256]; |
4919 | ||
4920 | static int ecdump_read(char *p) | |
4921 | { | |
4922 | int len = 0; | |
4923 | int i, j; | |
4924 | u8 v; | |
4925 | ||
4926 | len += sprintf(p + len, "EC " | |
4927 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
4928 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
4929 | for (i = 0; i < 256; i += 16) { | |
4930 | len += sprintf(p + len, "EC 0x%02x:", i); | |
4931 | for (j = 0; j < 16; j++) { | |
4932 | if (!acpi_ec_read(i + j, &v)) | |
4933 | break; | |
4934 | if (v != ecdump_regs[i + j]) | |
4935 | len += sprintf(p + len, " *%02x", v); | |
4936 | else | |
4937 | len += sprintf(p + len, " %02x", v); | |
4938 | ecdump_regs[i + j] = v; | |
4939 | } | |
4940 | len += sprintf(p + len, "\n"); | |
4941 | if (j != 16) | |
4942 | break; | |
4943 | } | |
4944 | ||
4945 | /* These are way too dangerous to advertise openly... */ | |
4946 | #if 0 | |
4947 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
4948 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
4949 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
4950 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
4951 | #endif | |
4952 | return len; | |
4953 | } | |
4954 | ||
4955 | static int ecdump_write(char *buf) | |
4956 | { | |
4957 | char *cmd; | |
4958 | int i, v; | |
4959 | ||
4960 | while ((cmd = next_cmd(&buf))) { | |
4961 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
4962 | /* i and v set */ | |
4963 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
4964 | /* i and v set */ | |
4965 | } else | |
4966 | return -EINVAL; | |
4967 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
4968 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
4969 | return -EIO; |
4970 | } else | |
4971 | return -EINVAL; | |
4972 | } | |
4973 | ||
4974 | return 0; | |
78f81cc4 BD |
4975 | } |
4976 | ||
a5763f22 HMH |
4977 | static struct ibm_struct ecdump_driver_data = { |
4978 | .name = "ecdump", | |
4979 | .read = ecdump_read, | |
4980 | .write = ecdump_write, | |
92641177 | 4981 | .flags.experimental = 1, |
a5763f22 HMH |
4982 | }; |
4983 | ||
56b6aeb0 HMH |
4984 | /************************************************************************* |
4985 | * Backlight/brightness subdriver | |
4986 | */ | |
4987 | ||
f74a27d4 HMH |
4988 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
4989 | ||
e11aecf1 HMH |
4990 | enum { |
4991 | TP_EC_BACKLIGHT = 0x31, | |
4992 | ||
4993 | /* TP_EC_BACKLIGHT bitmasks */ | |
4994 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
4995 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
4996 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
4997 | }; | |
4998 | ||
94954cc6 | 4999 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
5000 | static int brightness_mode; |
5001 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
5002 | ||
b21a15f6 | 5003 | static struct mutex brightness_mutex; |
56b6aeb0 | 5004 | |
b21a15f6 HMH |
5005 | /* |
5006 | * ThinkPads can read brightness from two places: EC 0x31, or | |
5007 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
e11aecf1 HMH |
5008 | * |
5009 | * EC 0x31 has the following layout | |
5010 | * Bit 7: unknown function | |
5011 | * Bit 6: unknown function | |
5012 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5013 | * Bit 4: must be set to zero to avoid problems | |
5014 | * Bit 3-0: backlight brightness level | |
5015 | * | |
5016 | * brightness_get_raw returns status data in the EC 0x31 layout | |
b21a15f6 | 5017 | */ |
e11aecf1 | 5018 | static int brightness_get_raw(int *status) |
b21a15f6 HMH |
5019 | { |
5020 | u8 lec = 0, lcmos = 0, level = 0; | |
5021 | ||
5022 | if (brightness_mode & 1) { | |
e11aecf1 | 5023 | if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) |
b21a15f6 | 5024 | return -EIO; |
e11aecf1 | 5025 | level = lec & TP_EC_BACKLIGHT_LVLMSK; |
b21a15f6 HMH |
5026 | }; |
5027 | if (brightness_mode & 2) { | |
5028 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
5029 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5030 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5031 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
5032 | level = lcmos; | |
5033 | } | |
5034 | ||
2d5e94d7 | 5035 | if (brightness_mode == 3) { |
e11aecf1 HMH |
5036 | *status = lec; /* Prefer EC, CMOS is just a backing store */ |
5037 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
2d5e94d7 HMH |
5038 | if (lec == lcmos) |
5039 | tp_warned.bright_cmos_ec_unsync = 0; | |
5040 | else { | |
5041 | if (!tp_warned.bright_cmos_ec_unsync) { | |
5042 | printk(TPACPI_ERR | |
5043 | "CMOS NVRAM (%u) and EC (%u) do not " | |
5044 | "agree on display brightness level\n", | |
5045 | (unsigned int) lcmos, | |
5046 | (unsigned int) lec); | |
5047 | tp_warned.bright_cmos_ec_unsync = 1; | |
5048 | } | |
5049 | return -EIO; | |
5050 | } | |
e11aecf1 HMH |
5051 | } else { |
5052 | *status = level; | |
b21a15f6 HMH |
5053 | } |
5054 | ||
e11aecf1 | 5055 | return 0; |
b21a15f6 HMH |
5056 | } |
5057 | ||
5058 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
5059 | static int brightness_set(int value) | |
5060 | { | |
5061 | int cmos_cmd, inc, i, res; | |
5062 | int current_value; | |
e11aecf1 | 5063 | int command_bits; |
b21a15f6 | 5064 | |
e11aecf1 HMH |
5065 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
5066 | value < 0) | |
b21a15f6 HMH |
5067 | return -EINVAL; |
5068 | ||
5069 | res = mutex_lock_interruptible(&brightness_mutex); | |
5070 | if (res < 0) | |
5071 | return res; | |
5072 | ||
e11aecf1 HMH |
5073 | res = brightness_get_raw(¤t_value); |
5074 | if (res < 0) | |
b21a15f6 | 5075 | goto errout; |
e11aecf1 HMH |
5076 | |
5077 | command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; | |
5078 | current_value &= TP_EC_BACKLIGHT_LVLMSK; | |
b21a15f6 HMH |
5079 | |
5080 | cmos_cmd = value > current_value ? | |
5081 | TP_CMOS_BRIGHTNESS_UP : | |
5082 | TP_CMOS_BRIGHTNESS_DOWN; | |
5083 | inc = (value > current_value)? 1 : -1; | |
5084 | ||
5085 | res = 0; | |
5086 | for (i = current_value; i != value; i += inc) { | |
5087 | if ((brightness_mode & 2) && | |
5088 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
5089 | res = -EIO; | |
5090 | goto errout; | |
5091 | } | |
5092 | if ((brightness_mode & 1) && | |
e11aecf1 HMH |
5093 | !acpi_ec_write(TP_EC_BACKLIGHT, |
5094 | (i + inc) | command_bits)) { | |
b21a15f6 HMH |
5095 | res = -EIO; |
5096 | goto errout;; | |
5097 | } | |
5098 | } | |
5099 | ||
5100 | errout: | |
5101 | mutex_unlock(&brightness_mutex); | |
5102 | return res; | |
5103 | } | |
5104 | ||
5105 | /* sysfs backlight class ----------------------------------------------- */ | |
5106 | ||
5107 | static int brightness_update_status(struct backlight_device *bd) | |
5108 | { | |
5109 | /* it is the backlight class's job (caller) to handle | |
5110 | * EINTR and other errors properly */ | |
5111 | return brightness_set( | |
5112 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
5113 | bd->props.power == FB_BLANK_UNBLANK) ? | |
5114 | bd->props.brightness : 0); | |
5115 | } | |
5116 | ||
e11aecf1 | 5117 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 5118 | { |
e11aecf1 | 5119 | int status, res; |
a3f104c0 | 5120 | |
e11aecf1 HMH |
5121 | res = brightness_get_raw(&status); |
5122 | if (res < 0) | |
5123 | return 0; /* FIXME: teach backlight about error handling */ | |
e11e211a | 5124 | |
e11aecf1 | 5125 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
5126 | } |
5127 | ||
b21a15f6 | 5128 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
5129 | .get_brightness = brightness_get, |
5130 | .update_status = brightness_update_status, | |
56b6aeb0 | 5131 | }; |
e11e211a | 5132 | |
b21a15f6 | 5133 | /* --------------------------------------------------------------------- */ |
e11e211a | 5134 | |
a5763f22 | 5135 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
5136 | { |
5137 | int b; | |
5138 | ||
fe08bc4b HMH |
5139 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
5140 | ||
f432255e HMH |
5141 | mutex_init(&brightness_mutex); |
5142 | ||
b5972796 HMH |
5143 | /* |
5144 | * We always attempt to detect acpi support, so as to switch | |
5145 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
5146 | * going to publish a backlight interface | |
5147 | */ | |
5148 | b = tpacpi_check_std_acpi_brightness_support(); | |
5149 | if (b > 0) { | |
2dba1b5d TR |
5150 | |
5151 | if (acpi_video_backlight_support()) { | |
5152 | if (brightness_enable > 1) { | |
5153 | printk(TPACPI_NOTICE | |
5154 | "Standard ACPI backlight interface " | |
5155 | "available, not loading native one.\n"); | |
5156 | return 1; | |
5157 | } else if (brightness_enable == 1) { | |
5158 | printk(TPACPI_NOTICE | |
5159 | "Backlight control force enabled, even if standard " | |
5160 | "ACPI backlight interface is available\n"); | |
5161 | } | |
5162 | } else { | |
5163 | if (brightness_enable > 1) { | |
5164 | printk(TPACPI_NOTICE | |
5165 | "Standard ACPI backlight interface not " | |
5166 | "available, thinkpad_acpi native " | |
5167 | "brightness control enabled\n"); | |
5168 | } | |
e11e211a | 5169 | } |
87cc537a HMH |
5170 | } |
5171 | ||
b5972796 HMH |
5172 | if (!brightness_enable) { |
5173 | dbg_printk(TPACPI_DBG_INIT, | |
5174 | "brightness support disabled by " | |
5175 | "module parameter\n"); | |
5176 | return 1; | |
5177 | } | |
5178 | ||
5179 | if (b > 16) { | |
5180 | printk(TPACPI_ERR | |
5181 | "Unsupported brightness interface, " | |
5182 | "please contact %s\n", TPACPI_MAIL); | |
5183 | return 1; | |
5184 | } | |
5185 | if (b == 16) | |
5186 | tp_features.bright_16levels = 1; | |
5187 | ||
24d3b774 HMH |
5188 | if (!brightness_mode) { |
5189 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
5190 | brightness_mode = 2; | |
5191 | else | |
5192 | brightness_mode = 3; | |
5193 | ||
5194 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
5195 | brightness_mode); | |
5196 | } | |
5197 | ||
5198 | if (brightness_mode > 3) | |
5199 | return -EINVAL; | |
5200 | ||
e11aecf1 | 5201 | if (brightness_get_raw(&b) < 0) |
24d3b774 | 5202 | return 1; |
56b6aeb0 | 5203 | |
a3f104c0 | 5204 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
5205 | printk(TPACPI_INFO |
5206 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 5207 | |
7d5a015e HMH |
5208 | ibm_backlight_device = backlight_device_register( |
5209 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
5210 | &ibm_backlight_data); | |
56b6aeb0 | 5211 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 5212 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
5213 | return PTR_ERR(ibm_backlight_device); |
5214 | } | |
fe08bc4b | 5215 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 5216 | |
a3f104c0 HMH |
5217 | ibm_backlight_device->props.max_brightness = |
5218 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 5219 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
5220 | backlight_update_status(ibm_backlight_device); |
5221 | ||
5222 | return 0; | |
5223 | } | |
5224 | ||
5225 | static void brightness_exit(void) | |
5226 | { | |
5227 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
5228 | vdbg_printk(TPACPI_DBG_EXIT, |
5229 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 | 5230 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 HMH |
5231 | } |
5232 | } | |
5233 | ||
56b6aeb0 HMH |
5234 | static int brightness_read(char *p) |
5235 | { | |
5236 | int len = 0; | |
5237 | int level; | |
5238 | ||
35ff8b9f HMH |
5239 | level = brightness_get(NULL); |
5240 | if (level < 0) { | |
56b6aeb0 HMH |
5241 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
5242 | } else { | |
a3f104c0 | 5243 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
5244 | len += sprintf(p + len, "commands:\tup, down\n"); |
5245 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
5246 | " (<level> is 0-%d)\n", |
5247 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
5248 | } |
5249 | ||
5250 | return len; | |
5251 | } | |
5252 | ||
8acb0250 HM |
5253 | static int brightness_write(char *buf) |
5254 | { | |
5255 | int level; | |
4273af8d | 5256 | int rc; |
1da177e4 | 5257 | char *cmd; |
a3f104c0 | 5258 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 5259 | |
4273af8d HMH |
5260 | level = brightness_get(NULL); |
5261 | if (level < 0) | |
5262 | return level; | |
78f81cc4 | 5263 | |
4273af8d | 5264 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 5265 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
5266 | if (level < max_level) |
5267 | level++; | |
78f81cc4 | 5268 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
5269 | if (level > 0) |
5270 | level--; | |
5271 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
5272 | level >= 0 && level <= max_level) { | |
5273 | /* new level set */ | |
78f81cc4 BD |
5274 | } else |
5275 | return -EINVAL; | |
78f81cc4 BD |
5276 | } |
5277 | ||
4273af8d HMH |
5278 | /* |
5279 | * Now we know what the final level should be, so we try to set it. | |
5280 | * Doing it this way makes the syscall restartable in case of EINTR | |
5281 | */ | |
5282 | rc = brightness_set(level); | |
5283 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
5284 | } |
5285 | ||
a5763f22 HMH |
5286 | static struct ibm_struct brightness_driver_data = { |
5287 | .name = "brightness", | |
5288 | .read = brightness_read, | |
5289 | .write = brightness_write, | |
5290 | .exit = brightness_exit, | |
5291 | }; | |
5292 | ||
56b6aeb0 HMH |
5293 | /************************************************************************* |
5294 | * Volume subdriver | |
5295 | */ | |
fb87a811 | 5296 | |
f74a27d4 HMH |
5297 | static int volume_offset = 0x30; |
5298 | ||
78f81cc4 BD |
5299 | static int volume_read(char *p) |
5300 | { | |
5301 | int len = 0; | |
5302 | u8 level; | |
5303 | ||
5304 | if (!acpi_ec_read(volume_offset, &level)) { | |
5305 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
5306 | } else { | |
5307 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
5308 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
5309 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
5310 | len += sprintf(p + len, "commands:\tlevel <level>" | |
5311 | " (<level> is 0-15)\n"); | |
5312 | } | |
5313 | ||
5314 | return len; | |
5315 | } | |
5316 | ||
78f81cc4 BD |
5317 | static int volume_write(char *buf) |
5318 | { | |
5319 | int cmos_cmd, inc, i; | |
5320 | u8 level, mute; | |
5321 | int new_level, new_mute; | |
5322 | char *cmd; | |
5323 | ||
5324 | while ((cmd = next_cmd(&buf))) { | |
5325 | if (!acpi_ec_read(volume_offset, &level)) | |
5326 | return -EIO; | |
5327 | new_mute = mute = level & 0x40; | |
5328 | new_level = level = level & 0xf; | |
5329 | ||
5330 | if (strlencmp(cmd, "up") == 0) { | |
5331 | if (mute) | |
5332 | new_mute = 0; | |
5333 | else | |
5334 | new_level = level == 15 ? 15 : level + 1; | |
5335 | } else if (strlencmp(cmd, "down") == 0) { | |
5336 | if (mute) | |
5337 | new_mute = 0; | |
5338 | else | |
5339 | new_level = level == 0 ? 0 : level - 1; | |
5340 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
5341 | new_level >= 0 && new_level <= 15) { | |
5342 | /* new_level set */ | |
5343 | } else if (strlencmp(cmd, "mute") == 0) { | |
5344 | new_mute = 0x40; | |
1da177e4 LT |
5345 | } else |
5346 | return -EINVAL; | |
5347 | ||
35ff8b9f HMH |
5348 | if (new_level != level) { |
5349 | /* mute doesn't change */ | |
5350 | ||
5351 | cmos_cmd = (new_level > level) ? | |
5352 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
5353 | inc = new_level > level ? 1 : -1; |
5354 | ||
c9bea99c | 5355 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5356 | !acpi_ec_write(volume_offset, level))) |
5357 | return -EIO; | |
5358 | ||
5359 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 5360 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5361 | !acpi_ec_write(volume_offset, i + inc)) |
5362 | return -EIO; | |
5363 | ||
35ff8b9f HMH |
5364 | if (mute && |
5365 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
5366 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 5367 | return -EIO; |
35ff8b9f | 5368 | } |
78f81cc4 BD |
5369 | } |
5370 | ||
35ff8b9f HMH |
5371 | if (new_mute != mute) { |
5372 | /* level doesn't change */ | |
5373 | ||
5374 | cmos_cmd = (new_mute) ? | |
5375 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 5376 | |
c9bea99c | 5377 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5378 | !acpi_ec_write(volume_offset, level + new_mute)) |
5379 | return -EIO; | |
5380 | } | |
5381 | } | |
5382 | ||
5383 | return 0; | |
5384 | } | |
5385 | ||
a5763f22 HMH |
5386 | static struct ibm_struct volume_driver_data = { |
5387 | .name = "volume", | |
5388 | .read = volume_read, | |
5389 | .write = volume_write, | |
5390 | }; | |
56b6aeb0 HMH |
5391 | |
5392 | /************************************************************************* | |
5393 | * Fan subdriver | |
5394 | */ | |
5395 | ||
5396 | /* | |
5397 | * FAN ACCESS MODES | |
5398 | * | |
efa27145 | 5399 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
5400 | * ACPI GFAN method: returns fan level |
5401 | * | |
efa27145 | 5402 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 5403 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 5404 | * |
efa27145 | 5405 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5406 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
5407 | * | |
f51d1a39 HMH |
5408 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
5409 | * it for writing. | |
56b6aeb0 | 5410 | * |
efa27145 | 5411 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
5412 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
5413 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
5414 | * |
5415 | * Fan speed changes of any sort (including those caused by the | |
5416 | * disengaged mode) are usually done slowly by the firmware as the | |
5417 | * maximum ammount of fan duty cycle change per second seems to be | |
5418 | * limited. | |
5419 | * | |
5420 | * Reading is not available if GFAN exists. | |
5421 | * Writing is not available if SFAN exists. | |
5422 | * | |
5423 | * Bits | |
5424 | * 7 automatic mode engaged; | |
5425 | * (default operation mode of the ThinkPad) | |
5426 | * fan level is ignored in this mode. | |
f51d1a39 | 5427 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 5428 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
5429 | * the tachometer while the fan controller ramps up |
5430 | * the speed (which can take up to a few *minutes*). | |
5431 | * Speeds up fan to 100% duty-cycle, which is far above | |
5432 | * the standard RPM levels. It is not impossible that | |
5433 | * it could cause hardware damage. | |
56b6aeb0 HMH |
5434 | * 5-3 unused in some models. Extra bits for fan level |
5435 | * in others, but still useless as all values above | |
5436 | * 7 map to the same speed as level 7 in these models. | |
5437 | * 2-0 fan level (0..7 usually) | |
5438 | * 0x00 = stop | |
5439 | * 0x07 = max (set when temperatures critical) | |
5440 | * Some ThinkPads may have other levels, see | |
efa27145 | 5441 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
5442 | * |
5443 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
5444 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
5445 | * does so, its initial value is meaningless (0x07). | |
5446 | * | |
5447 | * For firmware bugs, refer to: | |
5448 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5449 | * | |
5450 | * ---- | |
5451 | * | |
5452 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
5453 | * Main fan tachometer reading (in RPM) | |
5454 | * | |
5455 | * This register is present on all ThinkPads with a new-style EC, and | |
5456 | * it is known not to be present on the A21m/e, and T22, as there is | |
5457 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
5458 | * ThinkPads from this same time period (and earlier) probably lack the | |
5459 | * tachometer as well. | |
5460 | * | |
5461 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
5462 | * was never fixed by IBM to report the EC firmware version string | |
5463 | * probably support the tachometer (like the early X models), so | |
5464 | * detecting it is quite hard. We need more data to know for sure. | |
5465 | * | |
5466 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
5467 | * might result. | |
5468 | * | |
f51d1a39 HMH |
5469 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
5470 | * mode. | |
56b6aeb0 HMH |
5471 | * |
5472 | * For firmware bugs, refer to: | |
5473 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5474 | * | |
efa27145 | 5475 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
5476 | * ThinkPad X31, X40, X41. Not available in the X60. |
5477 | * | |
5478 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
5479 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
5480 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
5481 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
5482 | * | |
5483 | * The speeds are stored on handles | |
5484 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
5485 | * | |
5486 | * There are three default speed sets, acessible as handles: | |
5487 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
5488 | * | |
5489 | * ACPI DSDT switches which set is in use depending on various | |
5490 | * factors. | |
5491 | * | |
efa27145 | 5492 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
5493 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
5494 | * but the ACPI tables just mention level 7. | |
5495 | */ | |
5496 | ||
f74a27d4 HMH |
5497 | enum { /* Fan control constants */ |
5498 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
5499 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
5500 | * 0x84 must be read before 0x85 */ | |
5501 | ||
5502 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
5503 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
5504 | ||
5505 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
5506 | }; | |
5507 | ||
5508 | enum fan_status_access_mode { | |
5509 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
5510 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
5511 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
5512 | }; | |
5513 | ||
5514 | enum fan_control_access_mode { | |
5515 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
5516 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
5517 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
5518 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
5519 | }; | |
5520 | ||
5521 | enum fan_control_commands { | |
5522 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
5523 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
5524 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
5525 | * and also watchdog cmd */ | |
5526 | }; | |
5527 | ||
5528 | static int fan_control_allowed; | |
5529 | ||
69ba91cb HMH |
5530 | static enum fan_status_access_mode fan_status_access_mode; |
5531 | static enum fan_control_access_mode fan_control_access_mode; | |
5532 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 5533 | |
778b4d74 | 5534 | static u8 fan_control_initial_status; |
fe98a52c | 5535 | static u8 fan_control_desired_level; |
0081b162 | 5536 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
5537 | static int fan_watchdog_maxinterval; |
5538 | ||
5539 | static struct mutex fan_mutex; | |
778b4d74 | 5540 | |
25c68a33 | 5541 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 5542 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 5543 | |
e0c7dfe7 HMH |
5544 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
5545 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
5546 | "\\FSPD", /* 600e/x, 770e, 770x */ |
5547 | ); /* all others */ | |
e0c7dfe7 | 5548 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
5549 | "JFNS", /* 770x-JL */ |
5550 | ); /* all others */ | |
5551 | ||
fe98a52c | 5552 | /* |
b21a15f6 | 5553 | * Call with fan_mutex held |
fe98a52c | 5554 | */ |
b21a15f6 | 5555 | static void fan_update_desired_level(u8 status) |
fe98a52c | 5556 | { |
b21a15f6 HMH |
5557 | if ((status & |
5558 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5559 | if (status > 7) | |
5560 | fan_control_desired_level = 7; | |
5561 | else | |
5562 | fan_control_desired_level = status; | |
5563 | } | |
5564 | } | |
fe98a52c | 5565 | |
b21a15f6 HMH |
5566 | static int fan_get_status(u8 *status) |
5567 | { | |
5568 | u8 s; | |
fe98a52c | 5569 | |
b21a15f6 HMH |
5570 | /* TODO: |
5571 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 5572 | |
b21a15f6 HMH |
5573 | switch (fan_status_access_mode) { |
5574 | case TPACPI_FAN_RD_ACPI_GFAN: | |
5575 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 5576 | |
b21a15f6 HMH |
5577 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
5578 | return -EIO; | |
fe98a52c | 5579 | |
b21a15f6 HMH |
5580 | if (likely(status)) |
5581 | *status = s & 0x07; | |
fe98a52c | 5582 | |
b21a15f6 HMH |
5583 | break; |
5584 | ||
5585 | case TPACPI_FAN_RD_TPEC: | |
5586 | /* all except 570, 600e/x, 770e, 770x */ | |
5587 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
5588 | return -EIO; | |
5589 | ||
5590 | if (likely(status)) | |
5591 | *status = s; | |
fe98a52c | 5592 | |
fe98a52c | 5593 | break; |
b21a15f6 | 5594 | |
fe98a52c | 5595 | default: |
b21a15f6 | 5596 | return -ENXIO; |
fe98a52c HMH |
5597 | } |
5598 | ||
b21a15f6 HMH |
5599 | return 0; |
5600 | } | |
fe98a52c | 5601 | |
b21a15f6 HMH |
5602 | static int fan_get_status_safe(u8 *status) |
5603 | { | |
5604 | int rc; | |
5605 | u8 s; | |
fe98a52c | 5606 | |
b21a15f6 HMH |
5607 | if (mutex_lock_interruptible(&fan_mutex)) |
5608 | return -ERESTARTSYS; | |
5609 | rc = fan_get_status(&s); | |
5610 | if (!rc) | |
5611 | fan_update_desired_level(s); | |
5612 | mutex_unlock(&fan_mutex); | |
fe98a52c | 5613 | |
b21a15f6 HMH |
5614 | if (status) |
5615 | *status = s; | |
fe98a52c | 5616 | |
b21a15f6 HMH |
5617 | return rc; |
5618 | } | |
5619 | ||
5620 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 5621 | { |
b21a15f6 | 5622 | u8 hi, lo; |
fe98a52c | 5623 | |
b21a15f6 HMH |
5624 | switch (fan_status_access_mode) { |
5625 | case TPACPI_FAN_RD_TPEC: | |
5626 | /* all except 570, 600e/x, 770e, 770x */ | |
5627 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
5628 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
5629 | return -EIO; | |
fe98a52c | 5630 | |
b21a15f6 HMH |
5631 | if (likely(speed)) |
5632 | *speed = (hi << 8) | lo; | |
fe98a52c | 5633 | |
b21a15f6 | 5634 | break; |
fe98a52c | 5635 | |
b21a15f6 HMH |
5636 | default: |
5637 | return -ENXIO; | |
5638 | } | |
fe98a52c | 5639 | |
b21a15f6 | 5640 | return 0; |
fe98a52c HMH |
5641 | } |
5642 | ||
b21a15f6 | 5643 | static int fan_set_level(int level) |
fe98a52c | 5644 | { |
b21a15f6 HMH |
5645 | if (!fan_control_allowed) |
5646 | return -EPERM; | |
fe98a52c | 5647 | |
b21a15f6 HMH |
5648 | switch (fan_control_access_mode) { |
5649 | case TPACPI_FAN_WR_ACPI_SFAN: | |
5650 | if (level >= 0 && level <= 7) { | |
5651 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
5652 | return -EIO; | |
5653 | } else | |
5654 | return -EINVAL; | |
5655 | break; | |
fe98a52c | 5656 | |
b21a15f6 HMH |
5657 | case TPACPI_FAN_WR_ACPI_FANS: |
5658 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
5659 | if (!(level & TP_EC_FAN_AUTO) && |
5660 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
5661 | ((level < 0) || (level > 7))) |
5662 | return -EINVAL; | |
fe98a52c | 5663 | |
b21a15f6 HMH |
5664 | /* safety net should the EC not support AUTO |
5665 | * or FULLSPEED mode bits and just ignore them */ | |
5666 | if (level & TP_EC_FAN_FULLSPEED) | |
5667 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 5668 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 5669 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 5670 | |
b21a15f6 HMH |
5671 | if (!acpi_ec_write(fan_status_offset, level)) |
5672 | return -EIO; | |
5673 | else | |
5674 | tp_features.fan_ctrl_status_undef = 0; | |
5675 | break; | |
fe98a52c | 5676 | |
b21a15f6 HMH |
5677 | default: |
5678 | return -ENXIO; | |
5679 | } | |
5680 | return 0; | |
fe98a52c HMH |
5681 | } |
5682 | ||
b21a15f6 | 5683 | static int fan_set_level_safe(int level) |
fe98a52c | 5684 | { |
b21a15f6 | 5685 | int rc; |
fe98a52c | 5686 | |
b21a15f6 HMH |
5687 | if (!fan_control_allowed) |
5688 | return -EPERM; | |
fe98a52c | 5689 | |
b21a15f6 HMH |
5690 | if (mutex_lock_interruptible(&fan_mutex)) |
5691 | return -ERESTARTSYS; | |
fe98a52c | 5692 | |
b21a15f6 HMH |
5693 | if (level == TPACPI_FAN_LAST_LEVEL) |
5694 | level = fan_control_desired_level; | |
fe98a52c | 5695 | |
b21a15f6 HMH |
5696 | rc = fan_set_level(level); |
5697 | if (!rc) | |
5698 | fan_update_desired_level(level); | |
5699 | ||
5700 | mutex_unlock(&fan_mutex); | |
5701 | return rc; | |
fe98a52c HMH |
5702 | } |
5703 | ||
b21a15f6 | 5704 | static int fan_set_enable(void) |
fe98a52c | 5705 | { |
b21a15f6 HMH |
5706 | u8 s; |
5707 | int rc; | |
fe98a52c | 5708 | |
ecf2a80a HMH |
5709 | if (!fan_control_allowed) |
5710 | return -EPERM; | |
5711 | ||
b21a15f6 HMH |
5712 | if (mutex_lock_interruptible(&fan_mutex)) |
5713 | return -ERESTARTSYS; | |
fe98a52c | 5714 | |
b21a15f6 HMH |
5715 | switch (fan_control_access_mode) { |
5716 | case TPACPI_FAN_WR_ACPI_FANS: | |
5717 | case TPACPI_FAN_WR_TPEC: | |
5718 | rc = fan_get_status(&s); | |
5719 | if (rc < 0) | |
5720 | break; | |
fe98a52c | 5721 | |
b21a15f6 HMH |
5722 | /* Don't go out of emergency fan mode */ |
5723 | if (s != 7) { | |
5724 | s &= 0x07; | |
5725 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
5726 | } | |
fe98a52c | 5727 | |
b21a15f6 HMH |
5728 | if (!acpi_ec_write(fan_status_offset, s)) |
5729 | rc = -EIO; | |
5730 | else { | |
5731 | tp_features.fan_ctrl_status_undef = 0; | |
5732 | rc = 0; | |
5733 | } | |
5734 | break; | |
fe98a52c | 5735 | |
b21a15f6 HMH |
5736 | case TPACPI_FAN_WR_ACPI_SFAN: |
5737 | rc = fan_get_status(&s); | |
5738 | if (rc < 0) | |
5739 | break; | |
fe98a52c | 5740 | |
b21a15f6 | 5741 | s &= 0x07; |
fe98a52c | 5742 | |
b21a15f6 HMH |
5743 | /* Set fan to at least level 4 */ |
5744 | s |= 4; | |
fe08bc4b | 5745 | |
b21a15f6 | 5746 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 5747 | rc = -EIO; |
b21a15f6 HMH |
5748 | else |
5749 | rc = 0; | |
5750 | break; | |
78f81cc4 | 5751 | |
b21a15f6 HMH |
5752 | default: |
5753 | rc = -ENXIO; | |
5754 | } | |
5fba344c | 5755 | |
b21a15f6 HMH |
5756 | mutex_unlock(&fan_mutex); |
5757 | return rc; | |
69ba91cb | 5758 | } |
78f81cc4 | 5759 | |
b21a15f6 | 5760 | static int fan_set_disable(void) |
78f81cc4 | 5761 | { |
b21a15f6 | 5762 | int rc; |
c52f0aa5 | 5763 | |
b21a15f6 HMH |
5764 | if (!fan_control_allowed) |
5765 | return -EPERM; | |
78f81cc4 | 5766 | |
b21a15f6 HMH |
5767 | if (mutex_lock_interruptible(&fan_mutex)) |
5768 | return -ERESTARTSYS; | |
3ef8a609 | 5769 | |
b21a15f6 HMH |
5770 | rc = 0; |
5771 | switch (fan_control_access_mode) { | |
5772 | case TPACPI_FAN_WR_ACPI_FANS: | |
5773 | case TPACPI_FAN_WR_TPEC: | |
5774 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
5775 | rc = -EIO; | |
5776 | else { | |
5777 | fan_control_desired_level = 0; | |
5778 | tp_features.fan_ctrl_status_undef = 0; | |
5779 | } | |
3ef8a609 HMH |
5780 | break; |
5781 | ||
b21a15f6 HMH |
5782 | case TPACPI_FAN_WR_ACPI_SFAN: |
5783 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
5784 | rc = -EIO; | |
5785 | else | |
5786 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
5787 | break; |
5788 | ||
5789 | default: | |
b21a15f6 | 5790 | rc = -ENXIO; |
78f81cc4 BD |
5791 | } |
5792 | ||
fe98a52c | 5793 | |
fe98a52c | 5794 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
5795 | return rc; |
5796 | } | |
5797 | ||
b21a15f6 | 5798 | static int fan_set_speed(int speed) |
c52f0aa5 | 5799 | { |
b21a15f6 | 5800 | int rc; |
c52f0aa5 | 5801 | |
b21a15f6 HMH |
5802 | if (!fan_control_allowed) |
5803 | return -EPERM; | |
3ef8a609 | 5804 | |
b21a15f6 HMH |
5805 | if (mutex_lock_interruptible(&fan_mutex)) |
5806 | return -ERESTARTSYS; | |
c52f0aa5 | 5807 | |
b21a15f6 HMH |
5808 | rc = 0; |
5809 | switch (fan_control_access_mode) { | |
5810 | case TPACPI_FAN_WR_ACPI_FANS: | |
5811 | if (speed >= 0 && speed <= 65535) { | |
5812 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
5813 | speed, speed, speed)) | |
5814 | rc = -EIO; | |
5815 | } else | |
5816 | rc = -EINVAL; | |
c52f0aa5 HMH |
5817 | break; |
5818 | ||
5819 | default: | |
b21a15f6 | 5820 | rc = -ENXIO; |
c52f0aa5 HMH |
5821 | } |
5822 | ||
b21a15f6 HMH |
5823 | mutex_unlock(&fan_mutex); |
5824 | return rc; | |
16663a87 HMH |
5825 | } |
5826 | ||
5827 | static void fan_watchdog_reset(void) | |
5828 | { | |
94954cc6 | 5829 | static int fan_watchdog_active; |
16663a87 | 5830 | |
4985cd0a HMH |
5831 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
5832 | return; | |
5833 | ||
16663a87 HMH |
5834 | if (fan_watchdog_active) |
5835 | cancel_delayed_work(&fan_watchdog_task); | |
5836 | ||
8fef502e HMH |
5837 | if (fan_watchdog_maxinterval > 0 && |
5838 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 5839 | fan_watchdog_active = 1; |
e0e3c061 | 5840 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
5841 | msecs_to_jiffies(fan_watchdog_maxinterval |
5842 | * 1000))) { | |
35ff8b9f | 5843 | printk(TPACPI_ERR |
e0e3c061 | 5844 | "failed to queue the fan watchdog, " |
16663a87 HMH |
5845 | "watchdog will not trigger\n"); |
5846 | } | |
5847 | } else | |
5848 | fan_watchdog_active = 0; | |
5849 | } | |
5850 | ||
b21a15f6 | 5851 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 5852 | { |
b21a15f6 | 5853 | int rc; |
18ad7996 | 5854 | |
b21a15f6 HMH |
5855 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
5856 | return; | |
a12095c2 | 5857 | |
e0c7dfe7 | 5858 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
5859 | rc = fan_set_enable(); |
5860 | if (rc < 0) { | |
e0c7dfe7 | 5861 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
5862 | "will try again later...\n", -rc); |
5863 | /* reschedule for later */ | |
5864 | fan_watchdog_reset(); | |
5865 | } | |
5866 | } | |
eaa7571b | 5867 | |
b21a15f6 HMH |
5868 | /* |
5869 | * SYSFS fan layout: hwmon compatible (device) | |
5870 | * | |
5871 | * pwm*_enable: | |
5872 | * 0: "disengaged" mode | |
5873 | * 1: manual mode | |
5874 | * 2: native EC "auto" mode (recommended, hardware default) | |
5875 | * | |
5876 | * pwm*: set speed in manual mode, ignored otherwise. | |
5877 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
5878 | * interpolation. | |
5879 | * | |
5880 | * fan*_input: tachometer reading, RPM | |
5881 | * | |
5882 | * | |
5883 | * SYSFS fan layout: extensions | |
5884 | * | |
5885 | * fan_watchdog (driver): | |
5886 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
5887 | */ | |
5888 | ||
5889 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
5890 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
5891 | struct device_attribute *attr, | |
5892 | char *buf) | |
5893 | { | |
5894 | int res, mode; | |
5895 | u8 status; | |
5896 | ||
5897 | res = fan_get_status_safe(&status); | |
5898 | if (res) | |
5899 | return res; | |
5900 | ||
5901 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5902 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 5903 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
5904 | } else { |
5905 | /* Return most likely status. In fact, it | |
5906 | * might be the only possible status */ | |
5907 | status = TP_EC_FAN_AUTO; | |
5908 | } | |
5909 | } | |
5910 | ||
5911 | if (status & TP_EC_FAN_FULLSPEED) { | |
5912 | mode = 0; | |
5913 | } else if (status & TP_EC_FAN_AUTO) { | |
5914 | mode = 2; | |
5915 | } else | |
5916 | mode = 1; | |
5917 | ||
5918 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
5919 | } | |
a12095c2 | 5920 | |
b21a15f6 HMH |
5921 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
5922 | struct device_attribute *attr, | |
5923 | const char *buf, size_t count) | |
5924 | { | |
5925 | unsigned long t; | |
5926 | int res, level; | |
5927 | ||
5928 | if (parse_strtoul(buf, 2, &t)) | |
5929 | return -EINVAL; | |
5930 | ||
5931 | switch (t) { | |
5932 | case 0: | |
5933 | level = TP_EC_FAN_FULLSPEED; | |
5934 | break; | |
5935 | case 1: | |
5936 | level = TPACPI_FAN_LAST_LEVEL; | |
5937 | break; | |
5938 | case 2: | |
5939 | level = TP_EC_FAN_AUTO; | |
5940 | break; | |
5941 | case 3: | |
5942 | /* reserved for software-controlled auto mode */ | |
5943 | return -ENOSYS; | |
18ad7996 | 5944 | default: |
b21a15f6 | 5945 | return -EINVAL; |
18ad7996 | 5946 | } |
b21a15f6 HMH |
5947 | |
5948 | res = fan_set_level_safe(level); | |
5949 | if (res == -ENXIO) | |
5950 | return -EINVAL; | |
5951 | else if (res < 0) | |
5952 | return res; | |
5953 | ||
5954 | fan_watchdog_reset(); | |
5955 | ||
5956 | return count; | |
18ad7996 HMH |
5957 | } |
5958 | ||
b21a15f6 HMH |
5959 | static struct device_attribute dev_attr_fan_pwm1_enable = |
5960 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
5961 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
5962 | ||
5963 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
5964 | static ssize_t fan_pwm1_show(struct device *dev, | |
5965 | struct device_attribute *attr, | |
5966 | char *buf) | |
fe98a52c | 5967 | { |
b21a15f6 HMH |
5968 | int res; |
5969 | u8 status; | |
fe98a52c | 5970 | |
b21a15f6 HMH |
5971 | res = fan_get_status_safe(&status); |
5972 | if (res) | |
5973 | return res; | |
ecf2a80a | 5974 | |
b21a15f6 HMH |
5975 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
5976 | if (status != fan_control_initial_status) { | |
5977 | tp_features.fan_ctrl_status_undef = 0; | |
5978 | } else { | |
5979 | status = TP_EC_FAN_AUTO; | |
5980 | } | |
5981 | } | |
fe98a52c | 5982 | |
b21a15f6 HMH |
5983 | if ((status & |
5984 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
5985 | status = fan_control_desired_level; | |
fe98a52c | 5986 | |
b21a15f6 HMH |
5987 | if (status > 7) |
5988 | status = 7; | |
fe98a52c | 5989 | |
b21a15f6 | 5990 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
5991 | } |
5992 | ||
b21a15f6 HMH |
5993 | static ssize_t fan_pwm1_store(struct device *dev, |
5994 | struct device_attribute *attr, | |
5995 | const char *buf, size_t count) | |
18ad7996 | 5996 | { |
b21a15f6 | 5997 | unsigned long s; |
1c6a334e | 5998 | int rc; |
b21a15f6 | 5999 | u8 status, newlevel; |
1c6a334e | 6000 | |
b21a15f6 HMH |
6001 | if (parse_strtoul(buf, 255, &s)) |
6002 | return -EINVAL; | |
6003 | ||
6004 | /* scale down from 0-255 to 0-7 */ | |
6005 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 6006 | |
fc589a3c HMH |
6007 | if (mutex_lock_interruptible(&fan_mutex)) |
6008 | return -ERESTARTSYS; | |
40ca9fdf | 6009 | |
b21a15f6 HMH |
6010 | rc = fan_get_status(&status); |
6011 | if (!rc && (status & | |
6012 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
6013 | rc = fan_set_level(newlevel); | |
6014 | if (rc == -ENXIO) | |
6015 | rc = -EINVAL; | |
6016 | else if (!rc) { | |
6017 | fan_update_desired_level(newlevel); | |
6018 | fan_watchdog_reset(); | |
eaa7571b | 6019 | } |
b21a15f6 | 6020 | } |
1c6a334e | 6021 | |
b21a15f6 HMH |
6022 | mutex_unlock(&fan_mutex); |
6023 | return (rc)? rc : count; | |
6024 | } | |
1c6a334e | 6025 | |
b21a15f6 HMH |
6026 | static struct device_attribute dev_attr_fan_pwm1 = |
6027 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
6028 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 6029 | |
b21a15f6 HMH |
6030 | /* sysfs fan fan1_input ------------------------------------------------ */ |
6031 | static ssize_t fan_fan1_input_show(struct device *dev, | |
6032 | struct device_attribute *attr, | |
6033 | char *buf) | |
6034 | { | |
6035 | int res; | |
6036 | unsigned int speed; | |
1c6a334e | 6037 | |
b21a15f6 HMH |
6038 | res = fan_get_speed(&speed); |
6039 | if (res < 0) | |
6040 | return res; | |
1c6a334e | 6041 | |
b21a15f6 HMH |
6042 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
6043 | } | |
18ad7996 | 6044 | |
b21a15f6 HMH |
6045 | static struct device_attribute dev_attr_fan_fan1_input = |
6046 | __ATTR(fan1_input, S_IRUGO, | |
6047 | fan_fan1_input_show, NULL); | |
40ca9fdf | 6048 | |
b21a15f6 HMH |
6049 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
6050 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
6051 | char *buf) | |
6052 | { | |
6053 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
6054 | } |
6055 | ||
b21a15f6 HMH |
6056 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
6057 | const char *buf, size_t count) | |
18ad7996 | 6058 | { |
b21a15f6 HMH |
6059 | unsigned long t; |
6060 | ||
6061 | if (parse_strtoul(buf, 120, &t)) | |
6062 | return -EINVAL; | |
40ca9fdf | 6063 | |
ecf2a80a HMH |
6064 | if (!fan_control_allowed) |
6065 | return -EPERM; | |
6066 | ||
b21a15f6 HMH |
6067 | fan_watchdog_maxinterval = t; |
6068 | fan_watchdog_reset(); | |
40ca9fdf | 6069 | |
b21a15f6 HMH |
6070 | return count; |
6071 | } | |
6072 | ||
6073 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
6074 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
6075 | ||
6076 | /* --------------------------------------------------------------------- */ | |
6077 | static struct attribute *fan_attributes[] = { | |
6078 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
6079 | &dev_attr_fan_fan1_input.attr, | |
6080 | NULL | |
6081 | }; | |
6082 | ||
6083 | static const struct attribute_group fan_attr_group = { | |
6084 | .attrs = fan_attributes, | |
6085 | }; | |
6086 | ||
6087 | static int __init fan_init(struct ibm_init_struct *iibm) | |
6088 | { | |
6089 | int rc; | |
6090 | ||
6091 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
6092 | ||
6093 | mutex_init(&fan_mutex); | |
6094 | fan_status_access_mode = TPACPI_FAN_NONE; | |
6095 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6096 | fan_control_commands = 0; | |
6097 | fan_watchdog_maxinterval = 0; | |
6098 | tp_features.fan_ctrl_status_undef = 0; | |
6099 | fan_control_desired_level = 7; | |
6100 | ||
e0c7dfe7 HMH |
6101 | TPACPI_ACPIHANDLE_INIT(fans); |
6102 | TPACPI_ACPIHANDLE_INIT(gfan); | |
6103 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
6104 | |
6105 | if (gfan_handle) { | |
6106 | /* 570, 600e/x, 770e, 770x */ | |
6107 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
6108 | } else { | |
6109 | /* all other ThinkPads: note that even old-style | |
6110 | * ThinkPad ECs supports the fan control register */ | |
6111 | if (likely(acpi_ec_read(fan_status_offset, | |
6112 | &fan_control_initial_status))) { | |
6113 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
6114 | ||
6115 | /* In some ThinkPads, neither the EC nor the ACPI | |
6116 | * DSDT initialize the fan status, and it ends up | |
6117 | * being set to 0x07 when it *could* be either | |
6118 | * 0x07 or 0x80. | |
6119 | * | |
6120 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
6121 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
6122 | * to be buggy. */ | |
6123 | if (fan_control_initial_status == 0x07) { | |
6124 | switch (thinkpad_id.ec_model) { | |
6125 | case 0x5931: /* TP-1Y */ | |
6126 | case 0x3837: /* TP-78 */ | |
6127 | case 0x3637: /* TP-76 */ | |
6128 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 6129 | printk(TPACPI_NOTICE |
35ff8b9f HMH |
6130 | "fan_init: initial fan status " |
6131 | "is unknown, assuming it is " | |
6132 | "in auto mode\n"); | |
b21a15f6 HMH |
6133 | tp_features.fan_ctrl_status_undef = 1; |
6134 | ;; | |
6135 | } | |
6136 | } | |
6137 | } else { | |
e0c7dfe7 | 6138 | printk(TPACPI_ERR |
b21a15f6 HMH |
6139 | "ThinkPad ACPI EC access misbehaving, " |
6140 | "fan status and control unavailable\n"); | |
6141 | return 1; | |
6142 | } | |
6143 | } | |
6144 | ||
6145 | if (sfan_handle) { | |
6146 | /* 570, 770x-JL */ | |
6147 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
6148 | fan_control_commands |= | |
6149 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
6150 | } else { | |
6151 | if (!gfan_handle) { | |
6152 | /* gfan without sfan means no fan control */ | |
6153 | /* all other models implement TP EC 0x2f control */ | |
6154 | ||
6155 | if (fans_handle) { | |
6156 | /* X31, X40, X41 */ | |
6157 | fan_control_access_mode = | |
6158 | TPACPI_FAN_WR_ACPI_FANS; | |
6159 | fan_control_commands |= | |
6160 | TPACPI_FAN_CMD_SPEED | | |
6161 | TPACPI_FAN_CMD_LEVEL | | |
6162 | TPACPI_FAN_CMD_ENABLE; | |
6163 | } else { | |
6164 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
6165 | fan_control_commands |= | |
6166 | TPACPI_FAN_CMD_LEVEL | | |
6167 | TPACPI_FAN_CMD_ENABLE; | |
6168 | } | |
fe98a52c | 6169 | } |
b21a15f6 | 6170 | } |
18ad7996 | 6171 | |
b21a15f6 HMH |
6172 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
6173 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
6174 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
6175 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 6176 | |
b21a15f6 HMH |
6177 | /* fan control master switch */ |
6178 | if (!fan_control_allowed) { | |
6179 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6180 | fan_control_commands = 0; | |
6181 | dbg_printk(TPACPI_DBG_INIT, | |
6182 | "fan control features disabled by parameter\n"); | |
18ad7996 | 6183 | } |
40ca9fdf | 6184 | |
b21a15f6 HMH |
6185 | /* update fan_control_desired_level */ |
6186 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
6187 | fan_get_status_safe(NULL); | |
fe98a52c | 6188 | |
b21a15f6 HMH |
6189 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
6190 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
6191 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
6192 | &fan_attr_group); | |
b21a15f6 HMH |
6193 | if (rc < 0) |
6194 | return rc; | |
9c0a76e1 HMH |
6195 | |
6196 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
6197 | &driver_attr_fan_watchdog); | |
6198 | if (rc < 0) { | |
6199 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
6200 | &fan_attr_group); | |
6201 | return rc; | |
6202 | } | |
b21a15f6 HMH |
6203 | return 0; |
6204 | } else | |
6205 | return 1; | |
56b6aeb0 HMH |
6206 | } |
6207 | ||
b21a15f6 | 6208 | static void fan_exit(void) |
56b6aeb0 | 6209 | { |
35ff8b9f HMH |
6210 | vdbg_printk(TPACPI_DBG_EXIT, |
6211 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 6212 | |
b21a15f6 HMH |
6213 | /* FIXME: can we really do this unconditionally? */ |
6214 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
6215 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
6216 | &driver_attr_fan_watchdog); | |
40ca9fdf | 6217 | |
b21a15f6 | 6218 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 6219 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
6220 | } |
6221 | ||
75700e53 HMH |
6222 | static void fan_suspend(pm_message_t state) |
6223 | { | |
0081b162 HMH |
6224 | int rc; |
6225 | ||
75700e53 HMH |
6226 | if (!fan_control_allowed) |
6227 | return; | |
6228 | ||
6229 | /* Store fan status in cache */ | |
0081b162 HMH |
6230 | fan_control_resume_level = 0; |
6231 | rc = fan_get_status_safe(&fan_control_resume_level); | |
6232 | if (rc < 0) | |
6233 | printk(TPACPI_NOTICE | |
6234 | "failed to read fan level for later " | |
6235 | "restore during resume: %d\n", rc); | |
6236 | ||
6237 | /* if it is undefined, don't attempt to restore it. | |
6238 | * KEEP THIS LAST */ | |
75700e53 | 6239 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 6240 | fan_control_resume_level = 0; |
75700e53 HMH |
6241 | } |
6242 | ||
6243 | static void fan_resume(void) | |
6244 | { | |
75700e53 HMH |
6245 | u8 current_level = 7; |
6246 | bool do_set = false; | |
0081b162 | 6247 | int rc; |
75700e53 HMH |
6248 | |
6249 | /* DSDT *always* updates status on resume */ | |
6250 | tp_features.fan_ctrl_status_undef = 0; | |
6251 | ||
75700e53 | 6252 | if (!fan_control_allowed || |
0081b162 | 6253 | !fan_control_resume_level || |
75700e53 HMH |
6254 | (fan_get_status_safe(¤t_level) < 0)) |
6255 | return; | |
6256 | ||
6257 | switch (fan_control_access_mode) { | |
6258 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
6259 | /* never decrease fan level */ |
6260 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
6261 | break; |
6262 | case TPACPI_FAN_WR_ACPI_FANS: | |
6263 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
6264 | /* never decrease fan level, scale is: |
6265 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
6266 | * | |
6267 | * We expect the firmware to set either 7 or AUTO, but we | |
6268 | * handle FULLSPEED out of paranoia. | |
6269 | * | |
6270 | * So, we can safely only restore FULLSPEED or 7, anything | |
6271 | * else could slow the fan. Restoring AUTO is useless, at | |
6272 | * best that's exactly what the DSDT already set (it is the | |
6273 | * slower it uses). | |
6274 | * | |
6275 | * Always keep in mind that the DSDT *will* have set the | |
6276 | * fans to what the vendor supposes is the best level. We | |
6277 | * muck with it only to speed the fan up. | |
6278 | */ | |
6279 | if (fan_control_resume_level != 7 && | |
6280 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
6281 | return; | |
6282 | else | |
6283 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
6284 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
6285 | break; |
6286 | default: | |
6287 | return; | |
6288 | } | |
6289 | if (do_set) { | |
6290 | printk(TPACPI_NOTICE | |
6291 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
6292 | fan_control_resume_level); |
6293 | rc = fan_set_level_safe(fan_control_resume_level); | |
6294 | if (rc < 0) | |
6295 | printk(TPACPI_NOTICE | |
6296 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
6297 | } |
6298 | } | |
6299 | ||
56b6aeb0 HMH |
6300 | static int fan_read(char *p) |
6301 | { | |
6302 | int len = 0; | |
6303 | int rc; | |
6304 | u8 status; | |
6305 | unsigned int speed = 0; | |
6306 | ||
6307 | switch (fan_status_access_mode) { | |
efa27145 | 6308 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 6309 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6310 | rc = fan_get_status_safe(&status); |
6311 | if (rc < 0) | |
56b6aeb0 HMH |
6312 | return rc; |
6313 | ||
6314 | len += sprintf(p + len, "status:\t\t%s\n" | |
6315 | "level:\t\t%d\n", | |
6316 | (status != 0) ? "enabled" : "disabled", status); | |
6317 | break; | |
6318 | ||
efa27145 | 6319 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 6320 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6321 | rc = fan_get_status_safe(&status); |
6322 | if (rc < 0) | |
56b6aeb0 HMH |
6323 | return rc; |
6324 | ||
d8fd94d9 | 6325 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 6326 | if (status != fan_control_initial_status) |
d8fd94d9 | 6327 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
6328 | else |
6329 | /* Return most likely status. In fact, it | |
6330 | * might be the only possible status */ | |
efa27145 | 6331 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
6332 | } |
6333 | ||
6334 | len += sprintf(p + len, "status:\t\t%s\n", | |
6335 | (status != 0) ? "enabled" : "disabled"); | |
6336 | ||
35ff8b9f HMH |
6337 | rc = fan_get_speed(&speed); |
6338 | if (rc < 0) | |
56b6aeb0 HMH |
6339 | return rc; |
6340 | ||
6341 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
6342 | ||
efa27145 | 6343 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
6344 | /* Disengaged mode takes precedence */ |
6345 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 6346 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
6347 | len += sprintf(p + len, "level:\t\tauto\n"); |
6348 | else | |
6349 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
6350 | break; | |
6351 | ||
efa27145 | 6352 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
6353 | default: |
6354 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
6355 | } | |
6356 | ||
efa27145 | 6357 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
6358 | len += sprintf(p + len, "commands:\tlevel <level>"); |
6359 | ||
6360 | switch (fan_control_access_mode) { | |
efa27145 | 6361 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
6362 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
6363 | break; | |
6364 | ||
6365 | default: | |
6366 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 6367 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
6368 | break; |
6369 | } | |
6370 | } | |
18ad7996 | 6371 | |
efa27145 | 6372 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 6373 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
6374 | "commands:\twatchdog <timeout> (<timeout> " |
6375 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 6376 | |
efa27145 | 6377 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
6378 | len += sprintf(p + len, "commands:\tspeed <speed>" |
6379 | " (<speed> is 0-65535)\n"); | |
6380 | ||
6381 | return len; | |
78f81cc4 BD |
6382 | } |
6383 | ||
18ad7996 HMH |
6384 | static int fan_write_cmd_level(const char *cmd, int *rc) |
6385 | { | |
6386 | int level; | |
6387 | ||
a12095c2 | 6388 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 6389 | level = TP_EC_FAN_AUTO; |
fe98a52c | 6390 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 6391 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 6392 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 6393 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
6394 | return 0; |
6395 | ||
35ff8b9f HMH |
6396 | *rc = fan_set_level_safe(level); |
6397 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6398 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
6399 | "access mode %d", fan_control_access_mode); |
6400 | ||
6401 | return 1; | |
6402 | } | |
6403 | ||
6404 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
6405 | { | |
6406 | if (strlencmp(cmd, "enable") != 0) | |
6407 | return 0; | |
6408 | ||
35ff8b9f HMH |
6409 | *rc = fan_set_enable(); |
6410 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6411 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
6412 | "access mode %d", fan_control_access_mode); |
6413 | ||
6414 | return 1; | |
6415 | } | |
6416 | ||
6417 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
6418 | { | |
6419 | if (strlencmp(cmd, "disable") != 0) | |
6420 | return 0; | |
6421 | ||
35ff8b9f HMH |
6422 | *rc = fan_set_disable(); |
6423 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6424 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
6425 | "access mode %d", fan_control_access_mode); |
6426 | ||
6427 | return 1; | |
6428 | } | |
6429 | ||
6430 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
6431 | { | |
6432 | int speed; | |
6433 | ||
a8b7a662 HMH |
6434 | /* TODO: |
6435 | * Support speed <low> <medium> <high> ? */ | |
6436 | ||
18ad7996 HMH |
6437 | if (sscanf(cmd, "speed %d", &speed) != 1) |
6438 | return 0; | |
6439 | ||
35ff8b9f HMH |
6440 | *rc = fan_set_speed(speed); |
6441 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6442 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
6443 | "access mode %d", fan_control_access_mode); |
6444 | ||
6445 | return 1; | |
6446 | } | |
6447 | ||
16663a87 HMH |
6448 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
6449 | { | |
6450 | int interval; | |
6451 | ||
6452 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
6453 | return 0; | |
6454 | ||
6455 | if (interval < 0 || interval > 120) | |
6456 | *rc = -EINVAL; | |
6457 | else | |
6458 | fan_watchdog_maxinterval = interval; | |
6459 | ||
6460 | return 1; | |
6461 | } | |
6462 | ||
18ad7996 HMH |
6463 | static int fan_write(char *buf) |
6464 | { | |
6465 | char *cmd; | |
6466 | int rc = 0; | |
6467 | ||
6468 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 6469 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 6470 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 6471 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 6472 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
6473 | fan_write_cmd_disable(cmd, &rc) || |
6474 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 6475 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
6476 | fan_write_cmd_speed(cmd, &rc)) |
6477 | ) | |
6478 | rc = -EINVAL; | |
16663a87 HMH |
6479 | else if (!rc) |
6480 | fan_watchdog_reset(); | |
18ad7996 HMH |
6481 | } |
6482 | ||
6483 | return rc; | |
6484 | } | |
6485 | ||
a5763f22 HMH |
6486 | static struct ibm_struct fan_driver_data = { |
6487 | .name = "fan", | |
6488 | .read = fan_read, | |
6489 | .write = fan_write, | |
6490 | .exit = fan_exit, | |
75700e53 HMH |
6491 | .suspend = fan_suspend, |
6492 | .resume = fan_resume, | |
a5763f22 HMH |
6493 | }; |
6494 | ||
56b6aeb0 HMH |
6495 | /**************************************************************************** |
6496 | **************************************************************************** | |
6497 | * | |
6498 | * Infrastructure | |
6499 | * | |
6500 | **************************************************************************** | |
6501 | ****************************************************************************/ | |
6502 | ||
7fd40029 HMH |
6503 | /* sysfs name ---------------------------------------------------------- */ |
6504 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
6505 | struct device_attribute *attr, | |
6506 | char *buf) | |
6507 | { | |
e0c7dfe7 | 6508 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
6509 | } |
6510 | ||
6511 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
6512 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
6513 | ||
6514 | /* --------------------------------------------------------------------- */ | |
6515 | ||
56b6aeb0 | 6516 | /* /proc support */ |
94954cc6 | 6517 | static struct proc_dir_entry *proc_dir; |
16663a87 | 6518 | |
56b6aeb0 HMH |
6519 | /* |
6520 | * Module and infrastructure proble, init and exit handling | |
6521 | */ | |
1da177e4 | 6522 | |
b21a15f6 HMH |
6523 | static int force_load; |
6524 | ||
fe08bc4b | 6525 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 6526 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 6527 | { |
a5763f22 | 6528 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 6529 | |
a5763f22 | 6530 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
6531 | } |
6532 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
6533 | ||
b21a15f6 HMH |
6534 | static void ibm_exit(struct ibm_struct *ibm) |
6535 | { | |
6536 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
6537 | ||
6538 | list_del_init(&ibm->all_drivers); | |
6539 | ||
6540 | if (ibm->flags.acpi_notify_installed) { | |
6541 | dbg_printk(TPACPI_DBG_EXIT, | |
6542 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
6543 | BUG_ON(!ibm->acpi); | |
6544 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
6545 | ibm->acpi->type, | |
6546 | dispatch_acpi_notify); | |
6547 | ibm->flags.acpi_notify_installed = 0; | |
6548 | ibm->flags.acpi_notify_installed = 0; | |
6549 | } | |
6550 | ||
6551 | if (ibm->flags.proc_created) { | |
6552 | dbg_printk(TPACPI_DBG_EXIT, | |
6553 | "%s: remove_proc_entry\n", ibm->name); | |
6554 | remove_proc_entry(ibm->name, proc_dir); | |
6555 | ibm->flags.proc_created = 0; | |
6556 | } | |
6557 | ||
6558 | if (ibm->flags.acpi_driver_registered) { | |
6559 | dbg_printk(TPACPI_DBG_EXIT, | |
6560 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
6561 | BUG_ON(!ibm->acpi); | |
6562 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
6563 | kfree(ibm->acpi->driver); | |
6564 | ibm->acpi->driver = NULL; | |
6565 | ibm->flags.acpi_driver_registered = 0; | |
6566 | } | |
6567 | ||
6568 | if (ibm->flags.init_called && ibm->exit) { | |
6569 | ibm->exit(); | |
6570 | ibm->flags.init_called = 0; | |
6571 | } | |
6572 | ||
6573 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
6574 | } | |
f74a27d4 | 6575 | |
a5763f22 | 6576 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
6577 | { |
6578 | int ret; | |
a5763f22 | 6579 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
6580 | struct proc_dir_entry *entry; |
6581 | ||
a5763f22 HMH |
6582 | BUG_ON(ibm == NULL); |
6583 | ||
6584 | INIT_LIST_HEAD(&ibm->all_drivers); | |
6585 | ||
92641177 | 6586 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
6587 | return 0; |
6588 | ||
fe08bc4b HMH |
6589 | dbg_printk(TPACPI_DBG_INIT, |
6590 | "probing for %s\n", ibm->name); | |
6591 | ||
a5763f22 HMH |
6592 | if (iibm->init) { |
6593 | ret = iibm->init(iibm); | |
5fba344c HMH |
6594 | if (ret > 0) |
6595 | return 0; /* probe failed */ | |
6596 | if (ret) | |
1da177e4 | 6597 | return ret; |
a5763f22 | 6598 | |
92641177 | 6599 | ibm->flags.init_called = 1; |
1da177e4 LT |
6600 | } |
6601 | ||
8d376cd6 HMH |
6602 | if (ibm->acpi) { |
6603 | if (ibm->acpi->hid) { | |
6604 | ret = register_tpacpi_subdriver(ibm); | |
6605 | if (ret) | |
6606 | goto err_out; | |
6607 | } | |
5fba344c | 6608 | |
8d376cd6 HMH |
6609 | if (ibm->acpi->notify) { |
6610 | ret = setup_acpi_notify(ibm); | |
6611 | if (ret == -ENODEV) { | |
e0c7dfe7 | 6612 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
6613 | ibm->name); |
6614 | ret = 0; | |
6615 | goto err_out; | |
6616 | } | |
6617 | if (ret < 0) | |
6618 | goto err_out; | |
5fba344c | 6619 | } |
5fba344c HMH |
6620 | } |
6621 | ||
fe08bc4b HMH |
6622 | dbg_printk(TPACPI_DBG_INIT, |
6623 | "%s installed\n", ibm->name); | |
6624 | ||
78f81cc4 BD |
6625 | if (ibm->read) { |
6626 | entry = create_proc_entry(ibm->name, | |
6627 | S_IFREG | S_IRUGO | S_IWUSR, | |
6628 | proc_dir); | |
6629 | if (!entry) { | |
e0c7dfe7 | 6630 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 6631 | ibm->name); |
5fba344c HMH |
6632 | ret = -ENODEV; |
6633 | goto err_out; | |
78f81cc4 BD |
6634 | } |
6635 | entry->owner = THIS_MODULE; | |
6636 | entry->data = ibm; | |
8d376cd6 | 6637 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 6638 | if (ibm->write) |
8d376cd6 | 6639 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 6640 | ibm->flags.proc_created = 1; |
78f81cc4 | 6641 | } |
1da177e4 | 6642 | |
a5763f22 HMH |
6643 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
6644 | ||
1da177e4 | 6645 | return 0; |
5fba344c HMH |
6646 | |
6647 | err_out: | |
fe08bc4b HMH |
6648 | dbg_printk(TPACPI_DBG_INIT, |
6649 | "%s: at error exit path with result %d\n", | |
6650 | ibm->name, ret); | |
6651 | ||
5fba344c HMH |
6652 | ibm_exit(ibm); |
6653 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
6654 | } |
6655 | ||
56b6aeb0 HMH |
6656 | /* Probing */ |
6657 | ||
bf20e740 HMH |
6658 | /* returns 0 - probe ok, or < 0 - probe error. |
6659 | * Probe ok doesn't mean thinkpad found. | |
6660 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
6661 | static int __must_check __init get_thinkpad_model_data( | |
6662 | struct thinkpad_id_data *tp) | |
1da177e4 | 6663 | { |
1855256c | 6664 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 6665 | char ec_fw_string[18]; |
bf20e740 | 6666 | char const *s; |
1da177e4 | 6667 | |
d5a2f2f1 | 6668 | if (!tp) |
bf20e740 | 6669 | return -EINVAL; |
d5a2f2f1 HMH |
6670 | |
6671 | memset(tp, 0, sizeof(*tp)); | |
6672 | ||
6673 | if (dmi_name_in_vendors("IBM")) | |
6674 | tp->vendor = PCI_VENDOR_ID_IBM; | |
6675 | else if (dmi_name_in_vendors("LENOVO")) | |
6676 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
6677 | else | |
bf20e740 | 6678 | return 0; |
d5a2f2f1 | 6679 | |
bf20e740 HMH |
6680 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
6681 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
6682 | if (s && !tp->bios_version_str) | |
6683 | return -ENOMEM; | |
d5a2f2f1 | 6684 | if (!tp->bios_version_str) |
bf20e740 | 6685 | return 0; |
d5a2f2f1 HMH |
6686 | tp->bios_model = tp->bios_version_str[0] |
6687 | | (tp->bios_version_str[1] << 8); | |
6688 | ||
56b6aeb0 HMH |
6689 | /* |
6690 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
6691 | * X32 or newer, all Z series; Some models must have an | |
6692 | * up-to-date BIOS or they will not be detected. | |
6693 | * | |
6694 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
6695 | */ | |
6696 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
6697 | if (sscanf(dev->name, | |
6698 | "IBM ThinkPad Embedded Controller -[%17c", | |
6699 | ec_fw_string) == 1) { | |
6700 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
6701 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
6702 | |
6703 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
6704 | if (!tp->ec_version_str) |
6705 | return -ENOMEM; | |
d5a2f2f1 HMH |
6706 | tp->ec_model = ec_fw_string[0] |
6707 | | (ec_fw_string[1] << 8); | |
6708 | break; | |
78f81cc4 | 6709 | } |
1da177e4 | 6710 | } |
d5a2f2f1 | 6711 | |
bf20e740 HMH |
6712 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
6713 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
6714 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
6715 | if (!tp->model_str) | |
6716 | return -ENOMEM; | |
d5a2f2f1 | 6717 | } |
8c74adbc | 6718 | |
bf20e740 HMH |
6719 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
6720 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
6721 | if (s && !tp->nummodel_str) | |
6722 | return -ENOMEM; | |
6723 | ||
6724 | return 0; | |
1da177e4 LT |
6725 | } |
6726 | ||
5fba344c HMH |
6727 | static int __init probe_for_thinkpad(void) |
6728 | { | |
6729 | int is_thinkpad; | |
6730 | ||
6731 | if (acpi_disabled) | |
6732 | return -ENODEV; | |
6733 | ||
6734 | /* | |
6735 | * Non-ancient models have better DMI tagging, but very old models | |
6736 | * don't. | |
6737 | */ | |
d5a2f2f1 | 6738 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
6739 | |
6740 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 6741 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
6742 | if (!ec_handle) { |
6743 | if (is_thinkpad) | |
e0c7dfe7 | 6744 | printk(TPACPI_ERR |
5fba344c HMH |
6745 | "Not yet supported ThinkPad detected!\n"); |
6746 | return -ENODEV; | |
6747 | } | |
6748 | ||
0dcef77c HMH |
6749 | /* |
6750 | * Risks a regression on very old machines, but reduces potential | |
6751 | * false positives a damn great deal | |
6752 | */ | |
6753 | if (!is_thinkpad) | |
d5a2f2f1 | 6754 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
6755 | |
6756 | if (!is_thinkpad && !force_load) | |
6757 | return -ENODEV; | |
6758 | ||
5fba344c HMH |
6759 | return 0; |
6760 | } | |
6761 | ||
6762 | ||
56b6aeb0 | 6763 | /* Module init, exit, parameters */ |
1da177e4 | 6764 | |
a5763f22 HMH |
6765 | static struct ibm_init_struct ibms_init[] __initdata = { |
6766 | { | |
6767 | .init = thinkpad_acpi_driver_init, | |
6768 | .data = &thinkpad_acpi_driver_data, | |
6769 | }, | |
6770 | { | |
6771 | .init = hotkey_init, | |
6772 | .data = &hotkey_driver_data, | |
6773 | }, | |
6774 | { | |
6775 | .init = bluetooth_init, | |
6776 | .data = &bluetooth_driver_data, | |
6777 | }, | |
6778 | { | |
6779 | .init = wan_init, | |
6780 | .data = &wan_driver_data, | |
6781 | }, | |
d7c1d17d | 6782 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
6783 | { |
6784 | .init = video_init, | |
6785 | .data = &video_driver_data, | |
6786 | }, | |
d7c1d17d | 6787 | #endif |
a5763f22 HMH |
6788 | { |
6789 | .init = light_init, | |
6790 | .data = &light_driver_data, | |
6791 | }, | |
6792 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
6793 | { | |
6794 | .init = dock_init, | |
6795 | .data = &dock_driver_data[0], | |
6796 | }, | |
6797 | { | |
d94a7f16 | 6798 | .init = dock_init2, |
a5763f22 HMH |
6799 | .data = &dock_driver_data[1], |
6800 | }, | |
6801 | #endif | |
6802 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
6803 | { | |
6804 | .init = bay_init, | |
6805 | .data = &bay_driver_data, | |
6806 | }, | |
6807 | #endif | |
6808 | { | |
6809 | .init = cmos_init, | |
6810 | .data = &cmos_driver_data, | |
6811 | }, | |
6812 | { | |
6813 | .init = led_init, | |
6814 | .data = &led_driver_data, | |
6815 | }, | |
6816 | { | |
6817 | .init = beep_init, | |
6818 | .data = &beep_driver_data, | |
6819 | }, | |
6820 | { | |
6821 | .init = thermal_init, | |
6822 | .data = &thermal_driver_data, | |
6823 | }, | |
6824 | { | |
6825 | .data = &ecdump_driver_data, | |
6826 | }, | |
6827 | { | |
6828 | .init = brightness_init, | |
6829 | .data = &brightness_driver_data, | |
6830 | }, | |
6831 | { | |
6832 | .data = &volume_driver_data, | |
6833 | }, | |
6834 | { | |
6835 | .init = fan_init, | |
6836 | .data = &fan_driver_data, | |
6837 | }, | |
6838 | }; | |
6839 | ||
3945ac36 | 6840 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
6841 | { |
6842 | unsigned int i; | |
a5763f22 | 6843 | struct ibm_struct *ibm; |
1da177e4 | 6844 | |
59f91ff1 HMH |
6845 | if (!kp || !kp->name || !val) |
6846 | return -EINVAL; | |
6847 | ||
a5763f22 HMH |
6848 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
6849 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
6850 | WARN_ON(ibm == NULL); |
6851 | ||
6852 | if (!ibm || !ibm->name) | |
6853 | continue; | |
a5763f22 HMH |
6854 | |
6855 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
6856 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 6857 | return -ENOSPC; |
a5763f22 HMH |
6858 | strcpy(ibms_init[i].param, val); |
6859 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
6860 | return 0; |
6861 | } | |
a5763f22 | 6862 | } |
1da177e4 | 6863 | |
1da177e4 LT |
6864 | return -EINVAL; |
6865 | } | |
6866 | ||
56b6aeb0 | 6867 | module_param(experimental, int, 0); |
f68080f8 | 6868 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 6869 | "Enables experimental features when non-zero"); |
56b6aeb0 | 6870 | |
132ce091 | 6871 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 6872 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 6873 | |
86cc9445 | 6874 | module_param(force_load, bool, 0); |
f68080f8 | 6875 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
6876 | "Attempts to load the driver even on a " |
6877 | "mis-identified ThinkPad when true"); | |
0dcef77c | 6878 | |
86cc9445 | 6879 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 6880 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 6881 | "Enables setting fan parameters features when true"); |
ecf2a80a | 6882 | |
24d3b774 | 6883 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 6884 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
6885 | "Selects brightness control strategy: " |
6886 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 6887 | |
87cc537a | 6888 | module_param(brightness_enable, uint, 0); |
f68080f8 | 6889 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 6890 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 6891 | |
ff80f137 | 6892 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 6893 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
6894 | "used for backwards compatibility with userspace, " |
6895 | "see documentation"); | |
ff80f137 | 6896 | |
e0c7dfe7 | 6897 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 6898 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 6899 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 6900 | "at module load, see documentation") |
1da177e4 | 6901 | |
e0c7dfe7 HMH |
6902 | TPACPI_PARAM(hotkey); |
6903 | TPACPI_PARAM(bluetooth); | |
6904 | TPACPI_PARAM(video); | |
6905 | TPACPI_PARAM(light); | |
85998248 | 6906 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 6907 | TPACPI_PARAM(dock); |
63e5f248 | 6908 | #endif |
85998248 | 6909 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 6910 | TPACPI_PARAM(bay); |
85998248 | 6911 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
6912 | TPACPI_PARAM(cmos); |
6913 | TPACPI_PARAM(led); | |
6914 | TPACPI_PARAM(beep); | |
6915 | TPACPI_PARAM(ecdump); | |
6916 | TPACPI_PARAM(brightness); | |
6917 | TPACPI_PARAM(volume); | |
6918 | TPACPI_PARAM(fan); | |
78f81cc4 | 6919 | |
a73f3091 HMH |
6920 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
6921 | module_param(dbg_wlswemul, uint, 0); | |
6922 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); | |
6923 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
6924 | MODULE_PARM_DESC(wlsw_state, | |
6925 | "Initial state of the emulated WLSW switch"); | |
6926 | ||
6927 | module_param(dbg_bluetoothemul, uint, 0); | |
6928 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); | |
6929 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
6930 | MODULE_PARM_DESC(bluetooth_state, | |
6931 | "Initial state of the emulated bluetooth switch"); | |
6932 | ||
6933 | module_param(dbg_wwanemul, uint, 0); | |
6934 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); | |
6935 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
6936 | MODULE_PARM_DESC(wwan_state, | |
6937 | "Initial state of the emulated WWAN switch"); | |
6938 | #endif | |
6939 | ||
b21a15f6 HMH |
6940 | static void thinkpad_acpi_module_exit(void) |
6941 | { | |
6942 | struct ibm_struct *ibm, *itmp; | |
6943 | ||
6944 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
6945 | ||
6946 | list_for_each_entry_safe_reverse(ibm, itmp, | |
6947 | &tpacpi_all_drivers, | |
6948 | all_drivers) { | |
6949 | ibm_exit(ibm); | |
6950 | } | |
6951 | ||
6952 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
6953 | ||
6954 | if (tpacpi_inputdev) { | |
6955 | if (tp_features.input_device_registered) | |
6956 | input_unregister_device(tpacpi_inputdev); | |
6957 | else | |
6958 | input_free_device(tpacpi_inputdev); | |
6959 | } | |
6960 | ||
6961 | if (tpacpi_hwmon) | |
6962 | hwmon_device_unregister(tpacpi_hwmon); | |
6963 | ||
6964 | if (tp_features.sensors_pdev_attrs_registered) | |
6965 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
6966 | &dev_attr_thinkpad_acpi_pdev_name); | |
6967 | if (tpacpi_sensors_pdev) | |
6968 | platform_device_unregister(tpacpi_sensors_pdev); | |
6969 | if (tpacpi_pdev) | |
6970 | platform_device_unregister(tpacpi_pdev); | |
6971 | ||
6972 | if (tp_features.sensors_pdrv_attrs_registered) | |
6973 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
6974 | if (tp_features.platform_drv_attrs_registered) | |
6975 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
6976 | ||
6977 | if (tp_features.sensors_pdrv_registered) | |
6978 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
6979 | ||
6980 | if (tp_features.platform_drv_registered) | |
6981 | platform_driver_unregister(&tpacpi_pdriver); | |
6982 | ||
6983 | if (proc_dir) | |
e0c7dfe7 | 6984 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 6985 | |
e0e3c061 HMH |
6986 | if (tpacpi_wq) |
6987 | destroy_workqueue(tpacpi_wq); | |
6988 | ||
b21a15f6 HMH |
6989 | kfree(thinkpad_id.bios_version_str); |
6990 | kfree(thinkpad_id.ec_version_str); | |
6991 | kfree(thinkpad_id.model_str); | |
6992 | } | |
6993 | ||
f74a27d4 | 6994 | |
1def7115 | 6995 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
6996 | { |
6997 | int ret, i; | |
6998 | ||
8fef502e HMH |
6999 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
7000 | ||
ff80f137 HMH |
7001 | /* Parameter checking */ |
7002 | if (hotkey_report_mode > 2) | |
7003 | return -EINVAL; | |
7004 | ||
54ae1501 | 7005 | /* Driver-level probe */ |
d5a2f2f1 | 7006 | |
bf20e740 HMH |
7007 | ret = get_thinkpad_model_data(&thinkpad_id); |
7008 | if (ret) { | |
7009 | printk(TPACPI_ERR | |
7010 | "unable to get DMI data: %d\n", ret); | |
7011 | thinkpad_acpi_module_exit(); | |
7012 | return ret; | |
7013 | } | |
5fba344c | 7014 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
7015 | if (ret) { |
7016 | thinkpad_acpi_module_exit(); | |
5fba344c | 7017 | return ret; |
d5a2f2f1 | 7018 | } |
1da177e4 | 7019 | |
54ae1501 | 7020 | /* Driver initialization */ |
d5a2f2f1 | 7021 | |
e0c7dfe7 HMH |
7022 | TPACPI_ACPIHANDLE_INIT(ecrd); |
7023 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 7024 | |
e0e3c061 HMH |
7025 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
7026 | if (!tpacpi_wq) { | |
7027 | thinkpad_acpi_module_exit(); | |
7028 | return -ENOMEM; | |
7029 | } | |
7030 | ||
e0c7dfe7 | 7031 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 7032 | if (!proc_dir) { |
35ff8b9f HMH |
7033 | printk(TPACPI_ERR |
7034 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 7035 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7036 | return -ENODEV; |
7037 | } | |
7038 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 7039 | |
54ae1501 HMH |
7040 | ret = platform_driver_register(&tpacpi_pdriver); |
7041 | if (ret) { | |
35ff8b9f HMH |
7042 | printk(TPACPI_ERR |
7043 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
7044 | thinkpad_acpi_module_exit(); |
7045 | return ret; | |
7046 | } | |
ac36393d HMH |
7047 | tp_features.platform_drv_registered = 1; |
7048 | ||
7fd40029 HMH |
7049 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
7050 | if (ret) { | |
35ff8b9f HMH |
7051 | printk(TPACPI_ERR |
7052 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
7053 | thinkpad_acpi_module_exit(); |
7054 | return ret; | |
7055 | } | |
7056 | tp_features.sensors_pdrv_registered = 1; | |
7057 | ||
176750d6 | 7058 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
7059 | if (!ret) { |
7060 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
7061 | ret = tpacpi_create_driver_attributes( |
7062 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 7063 | } |
176750d6 | 7064 | if (ret) { |
35ff8b9f HMH |
7065 | printk(TPACPI_ERR |
7066 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
7067 | thinkpad_acpi_module_exit(); |
7068 | return ret; | |
7069 | } | |
2369cc94 | 7070 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 7071 | |
54ae1501 HMH |
7072 | |
7073 | /* Device initialization */ | |
e0c7dfe7 | 7074 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
7075 | NULL, 0); |
7076 | if (IS_ERR(tpacpi_pdev)) { | |
7077 | ret = PTR_ERR(tpacpi_pdev); | |
7078 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 7079 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
7080 | thinkpad_acpi_module_exit(); |
7081 | return ret; | |
7082 | } | |
7fd40029 | 7083 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
7084 | TPACPI_HWMON_DRVR_NAME, |
7085 | -1, NULL, 0); | |
7fd40029 HMH |
7086 | if (IS_ERR(tpacpi_sensors_pdev)) { |
7087 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
7088 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
7089 | printk(TPACPI_ERR |
7090 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
7091 | thinkpad_acpi_module_exit(); |
7092 | return ret; | |
7093 | } | |
7094 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
7095 | &dev_attr_thinkpad_acpi_pdev_name); | |
7096 | if (ret) { | |
e0c7dfe7 | 7097 | printk(TPACPI_ERR |
35ff8b9f | 7098 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
7099 | thinkpad_acpi_module_exit(); |
7100 | return ret; | |
7101 | } | |
7102 | tp_features.sensors_pdev_attrs_registered = 1; | |
7103 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
7104 | if (IS_ERR(tpacpi_hwmon)) { |
7105 | ret = PTR_ERR(tpacpi_hwmon); | |
7106 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 7107 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
7108 | thinkpad_acpi_module_exit(); |
7109 | return ret; | |
7110 | } | |
8523ed6f | 7111 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
7112 | tpacpi_inputdev = input_allocate_device(); |
7113 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 7114 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
7115 | thinkpad_acpi_module_exit(); |
7116 | return -ENOMEM; | |
7117 | } else { | |
7118 | /* Prepare input device, but don't register */ | |
7119 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 7120 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 7121 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
7122 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
7123 | thinkpad_id.vendor : | |
7124 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
7125 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
7126 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
7127 | } | |
a5763f22 HMH |
7128 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
7129 | ret = ibm_init(&ibms_init[i]); | |
7130 | if (ret >= 0 && *ibms_init[i].param) | |
7131 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 7132 | if (ret < 0) { |
1def7115 | 7133 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7134 | return ret; |
7135 | } | |
7136 | } | |
7f5d1cd6 HMH |
7137 | ret = input_register_device(tpacpi_inputdev); |
7138 | if (ret < 0) { | |
e0c7dfe7 | 7139 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
7140 | thinkpad_acpi_module_exit(); |
7141 | return ret; | |
7142 | } else { | |
7143 | tp_features.input_device_registered = 1; | |
7144 | } | |
1da177e4 | 7145 | |
8fef502e | 7146 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
7147 | return 0; |
7148 | } | |
7149 | ||
f68080f8 HMH |
7150 | /* Please remove this in year 2009 */ |
7151 | MODULE_ALIAS("ibm_acpi"); | |
7152 | ||
95e57ab2 HMH |
7153 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
7154 | ||
f68080f8 HMH |
7155 | /* |
7156 | * DMI matching for module autoloading | |
7157 | * | |
7158 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
7159 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
7160 | * | |
7161 | * Only models listed in thinkwiki will be supported, so add yours | |
7162 | * if it is not there yet. | |
7163 | */ | |
7164 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
7165 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
7166 | ||
7167 | /* Non-ancient thinkpads */ | |
7168 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
7169 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
7170 | ||
7171 | /* Ancient thinkpad BIOSes have to be identified by | |
7172 | * BIOS type or model number, and there are far less | |
7173 | * BIOS types than model numbers... */ | |
7174 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
7175 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
7176 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
7177 | ||
7178 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
7179 | MODULE_DESCRIPTION(TPACPI_DESC); |
7180 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
7181 | MODULE_LICENSE("GPL"); |
7182 | ||
1def7115 HMH |
7183 | module_init(thinkpad_acpi_module_init); |
7184 | module_exit(thinkpad_acpi_module_exit); |