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backlight: add backlight type
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / platform / x86 / compal-laptop.c
1 /*-*-linux-c-*-*/
2
3 /*
4 Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com>
5
6 based on MSI driver
7
8 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 02110-1301, USA.
24 */
25
26 /*
27 * compal-laptop.c - Compal laptop support.
28 *
29 * This driver exports a few files in /sys/devices/platform/compal-laptop/:
30 * wake_up_XXX Whether or not we listen to such wake up events (rw)
31 *
32 * In addition to these platform device attributes the driver
33 * registers itself in the Linux backlight control, power_supply, rfkill
34 * and hwmon subsystem and is available to userspace under:
35 *
36 * /sys/class/backlight/compal-laptop/
37 * /sys/class/power_supply/compal-laptop/
38 * /sys/class/rfkill/rfkillX/
39 * /sys/class/hwmon/hwmonX/
40 *
41 * Notes on the power_supply battery interface:
42 * - the "minimum" design voltage is *the* design voltage
43 * - the ambient temperature is the average battery temperature
44 * and the value is an educated guess (see commented code below)
45 *
46 *
47 * This driver might work on other laptops produced by Compal. If you
48 * want to try it you can pass force=1 as argument to the module which
49 * will force it to load even when the DMI data doesn't identify the
50 * laptop as compatible.
51 *
52 * Lots of data available at:
53 * http://service1.marasst.com/Compal/JHL90_91/Service%20Manual/
54 * JHL90%20service%20manual-Final-0725.pdf
55 *
56 *
57 *
58 * Support for the Compal JHL90 added by Roald Frederickx
59 * (roald.frederickx@gmail.com):
60 * Driver got large revision. Added functionalities: backlight
61 * power, wake_on_XXX, a hwmon and power_supply interface.
62 *
63 * In case this gets merged into the kernel source: I want to dedicate this
64 * to Kasper Meerts, the awesome guy who showed me Linux and C!
65 */
66
67 /* NOTE: currently the wake_on_XXX, hwmon and power_supply interfaces are
68 * only enabled on a JHL90 board until it is verified that they work on the
69 * other boards too. See the extra_features variable. */
70
71 #include <linux/module.h>
72 #include <linux/kernel.h>
73 #include <linux/init.h>
74 #include <linux/acpi.h>
75 #include <linux/dmi.h>
76 #include <linux/backlight.h>
77 #include <linux/platform_device.h>
78 #include <linux/rfkill.h>
79 #include <linux/hwmon.h>
80 #include <linux/hwmon-sysfs.h>
81 #include <linux/power_supply.h>
82 #include <linux/fb.h>
83
84
85 /* ======= */
86 /* Defines */
87 /* ======= */
88 #define DRIVER_NAME "compal-laptop"
89 #define DRIVER_VERSION "0.2.7"
90
91 #define BACKLIGHT_LEVEL_ADDR 0xB9
92 #define BACKLIGHT_LEVEL_MAX 7
93 #define BACKLIGHT_STATE_ADDR 0x59
94 #define BACKLIGHT_STATE_ON_DATA 0xE1
95 #define BACKLIGHT_STATE_OFF_DATA 0xE2
96
97 #define WAKE_UP_ADDR 0xA4
98 #define WAKE_UP_PME (1 << 0)
99 #define WAKE_UP_MODEM (1 << 1)
100 #define WAKE_UP_LAN (1 << 2)
101 #define WAKE_UP_WLAN (1 << 4)
102 #define WAKE_UP_KEY (1 << 6)
103 #define WAKE_UP_MOUSE (1 << 7)
104
105 #define WIRELESS_ADDR 0xBB
106 #define WIRELESS_WLAN (1 << 0)
107 #define WIRELESS_BT (1 << 1)
108 #define WIRELESS_WLAN_EXISTS (1 << 2)
109 #define WIRELESS_BT_EXISTS (1 << 3)
110 #define WIRELESS_KILLSWITCH (1 << 4)
111
112 #define PWM_ADDRESS 0x46
113 #define PWM_DISABLE_ADDR 0x59
114 #define PWM_DISABLE_DATA 0xA5
115 #define PWM_ENABLE_ADDR 0x59
116 #define PWM_ENABLE_DATA 0xA8
117
118 #define FAN_ADDRESS 0x46
119 #define FAN_DATA 0x81
120 #define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */
121 #define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */
122 #define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */
123
124 #define TEMP_CPU 0xB0
125 #define TEMP_CPU_LOCAL 0xB1
126 #define TEMP_CPU_DTS 0xB5
127 #define TEMP_NORTHBRIDGE 0xB6
128 #define TEMP_VGA 0xB4
129 #define TEMP_SKIN 0xB2
130
131 #define BAT_MANUFACTURER_NAME_ADDR 0x10
132 #define BAT_MANUFACTURER_NAME_LEN 9
133 #define BAT_MODEL_NAME_ADDR 0x19
134 #define BAT_MODEL_NAME_LEN 6
135 #define BAT_SERIAL_NUMBER_ADDR 0xC4
136 #define BAT_SERIAL_NUMBER_LEN 5
137 #define BAT_CHARGE_NOW 0xC2
138 #define BAT_CHARGE_DESIGN 0xCA
139 #define BAT_VOLTAGE_NOW 0xC6
140 #define BAT_VOLTAGE_DESIGN 0xC8
141 #define BAT_CURRENT_NOW 0xD0
142 #define BAT_CURRENT_AVG 0xD2
143 #define BAT_POWER 0xD4
144 #define BAT_CAPACITY 0xCE
145 #define BAT_TEMP 0xD6
146 #define BAT_TEMP_AVG 0xD7
147 #define BAT_STATUS0 0xC1
148 #define BAT_STATUS1 0xF0
149 #define BAT_STATUS2 0xF1
150 #define BAT_STOP_CHARGE1 0xF2
151 #define BAT_STOP_CHARGE2 0xF3
152
153 #define BAT_S0_DISCHARGE (1 << 0)
154 #define BAT_S0_DISCHRG_CRITICAL (1 << 2)
155 #define BAT_S0_LOW (1 << 3)
156 #define BAT_S0_CHARGING (1 << 1)
157 #define BAT_S0_AC (1 << 7)
158 #define BAT_S1_EXISTS (1 << 0)
159 #define BAT_S1_FULL (1 << 1)
160 #define BAT_S1_EMPTY (1 << 2)
161 #define BAT_S1_LiION_OR_NiMH (1 << 7)
162 #define BAT_S2_LOW_LOW (1 << 0)
163 #define BAT_STOP_CHRG1_BAD_CELL (1 << 1)
164 #define BAT_STOP_CHRG1_COMM_FAIL (1 << 2)
165 #define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6)
166 #define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7)
167
168
169 /* ======= */
170 /* Structs */
171 /* ======= */
172 struct compal_data{
173 /* Fan control */
174 struct device *hwmon_dev;
175 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by moterboard */
176 unsigned char curr_pwm;
177
178 /* Power supply */
179 struct power_supply psy;
180 struct power_supply_info psy_info;
181 char bat_model_name[BAT_MODEL_NAME_LEN + 1];
182 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
183 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1];
184 };
185
186
187 /* =============== */
188 /* General globals */
189 /* =============== */
190 static int force;
191 module_param(force, bool, 0);
192 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
193
194 /* Support for the wake_on_XXX, hwmon and power_supply interface. Currently
195 * only gets enabled on a JHL90 board. Might work with the others too */
196 static bool extra_features;
197
198 /* Nasty stuff. For some reason the fan control is very un-linear. I've
199 * come up with these values by looping through the possible inputs and
200 * watching the output of address 0x4F (do an ec_transaction writing 0x33
201 * into 0x4F and read a few bytes from the output, like so:
202 * u8 writeData = 0x33;
203 * ec_transaction(0x4F, &writeData, 1, buffer, 32, 0);
204 * That address is labled "fan1 table information" in the service manual.
205 * It should be clear which value in 'buffer' changes). This seems to be
206 * related to fan speed. It isn't a proper 'realtime' fan speed value
207 * though, because physically stopping or speeding up the fan doesn't
208 * change it. It might be the average voltage or current of the pwm output.
209 * Nevertheless, it is more fine-grained than the actual RPM reading */
210 static const unsigned char pwm_lookup_table[256] = {
211 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6,
212 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95,
213 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70,
214 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94,
215 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139,
216 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76,
217 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22,
218 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219,
219 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186,
220 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33,
221 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38,
222 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46,
223 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48,
224 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44,
225 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251,
226 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187,
227 187, 187, 193, 50
228 };
229
230
231
232
233 /* ========================= */
234 /* Hardware access functions */
235 /* ========================= */
236 /* General access */
237 static u8 ec_read_u8(u8 addr)
238 {
239 u8 value;
240 ec_read(addr, &value);
241 return value;
242 }
243
244 static s8 ec_read_s8(u8 addr)
245 {
246 return (s8)ec_read_u8(addr);
247 }
248
249 static u16 ec_read_u16(u8 addr)
250 {
251 int hi, lo;
252 lo = ec_read_u8(addr);
253 hi = ec_read_u8(addr + 1);
254 return (hi << 8) + lo;
255 }
256
257 static s16 ec_read_s16(u8 addr)
258 {
259 return (s16) ec_read_u16(addr);
260 }
261
262 static void ec_read_sequence(u8 addr, u8 *buf, int len)
263 {
264 int i;
265 for (i = 0; i < len; i++)
266 ec_read(addr + i, buf + i);
267 }
268
269
270 /* Backlight access */
271 static int set_backlight_level(int level)
272 {
273 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
274 return -EINVAL;
275
276 ec_write(BACKLIGHT_LEVEL_ADDR, level);
277
278 return 1;
279 }
280
281 static int get_backlight_level(void)
282 {
283 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR);
284 }
285
286 static void set_backlight_state(bool on)
287 {
288 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA;
289 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0, 0);
290 }
291
292
293 /* Fan control access */
294 static void pwm_enable_control(void)
295 {
296 unsigned char writeData = PWM_ENABLE_DATA;
297 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0, 0);
298 }
299
300 static void pwm_disable_control(void)
301 {
302 unsigned char writeData = PWM_DISABLE_DATA;
303 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0, 0);
304 }
305
306 static void set_pwm(int pwm)
307 {
308 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0, 0);
309 }
310
311 static int get_fan_rpm(void)
312 {
313 u8 value, data = FAN_DATA;
314 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1, 0);
315 return 100 * (int)value;
316 }
317
318
319
320
321 /* =================== */
322 /* Interface functions */
323 /* =================== */
324
325 /* Backlight interface */
326 static int bl_get_brightness(struct backlight_device *b)
327 {
328 return get_backlight_level();
329 }
330
331 static int bl_update_status(struct backlight_device *b)
332 {
333 int ret = set_backlight_level(b->props.brightness);
334 if (ret)
335 return ret;
336
337 set_backlight_state((b->props.power == FB_BLANK_UNBLANK)
338 && !(b->props.state & BL_CORE_SUSPENDED)
339 && !(b->props.state & BL_CORE_FBBLANK));
340 return 0;
341 }
342
343 static const struct backlight_ops compalbl_ops = {
344 .get_brightness = bl_get_brightness,
345 .update_status = bl_update_status,
346 };
347
348
349 /* Wireless interface */
350 static int compal_rfkill_set(void *data, bool blocked)
351 {
352 unsigned long radio = (unsigned long) data;
353 u8 result = ec_read_u8(WIRELESS_ADDR);
354 u8 value;
355
356 if (!blocked)
357 value = (u8) (result | radio);
358 else
359 value = (u8) (result & ~radio);
360 ec_write(WIRELESS_ADDR, value);
361
362 return 0;
363 }
364
365 static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
366 {
367 u8 result = ec_read_u8(WIRELESS_ADDR);
368 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
369 rfkill_set_hw_state(rfkill, hw_blocked);
370 }
371
372 static const struct rfkill_ops compal_rfkill_ops = {
373 .poll = compal_rfkill_poll,
374 .set_block = compal_rfkill_set,
375 };
376
377
378 /* Wake_up interface */
379 #define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \
380 static ssize_t NAME##_show(struct device *dev, \
381 struct device_attribute *attr, char *buf) \
382 { \
383 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \
384 } \
385 static ssize_t NAME##_store(struct device *dev, \
386 struct device_attribute *attr, const char *buf, size_t count) \
387 { \
388 int state; \
389 u8 old_val = ec_read_u8(ADDR); \
390 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \
391 return -EINVAL; \
392 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \
393 return count; \
394 }
395
396 SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME)
397 SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM)
398 SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN)
399 SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN)
400 SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY)
401 SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE)
402
403
404 /* General hwmon interface */
405 static ssize_t hwmon_name_show(struct device *dev,
406 struct device_attribute *attr, char *buf)
407 {
408 return sprintf(buf, "%s\n", DRIVER_NAME);
409 }
410
411
412 /* Fan control interface */
413 static ssize_t pwm_enable_show(struct device *dev,
414 struct device_attribute *attr, char *buf)
415 {
416 struct compal_data *data = dev_get_drvdata(dev);
417 return sprintf(buf, "%d\n", data->pwm_enable);
418 }
419
420 static ssize_t pwm_enable_store(struct device *dev,
421 struct device_attribute *attr, const char *buf, size_t count)
422 {
423 struct compal_data *data = dev_get_drvdata(dev);
424 long val;
425 int err;
426 err = strict_strtol(buf, 10, &val);
427 if (err)
428 return err;
429 if (val < 0)
430 return -EINVAL;
431
432 data->pwm_enable = val;
433
434 switch (val) {
435 case 0: /* Full speed */
436 pwm_enable_control();
437 set_pwm(255);
438 break;
439 case 1: /* As set by pwm1 */
440 pwm_enable_control();
441 set_pwm(data->curr_pwm);
442 break;
443 default: /* Control by motherboard */
444 pwm_disable_control();
445 break;
446 }
447
448 return count;
449 }
450
451 static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
452 char *buf)
453 {
454 struct compal_data *data = dev_get_drvdata(dev);
455 return sprintf(buf, "%hhu\n", data->curr_pwm);
456 }
457
458 static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
459 const char *buf, size_t count)
460 {
461 struct compal_data *data = dev_get_drvdata(dev);
462 long val;
463 int err;
464 err = strict_strtol(buf, 10, &val);
465 if (err)
466 return err;
467 if (val < 0 || val > 255)
468 return -EINVAL;
469
470 data->curr_pwm = val;
471
472 if (data->pwm_enable != 1)
473 return count;
474 set_pwm(val);
475
476 return count;
477 }
478
479 static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
480 char *buf)
481 {
482 return sprintf(buf, "%d\n", get_fan_rpm());
483 }
484
485
486 /* Temperature interface */
487 #define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \
488 static ssize_t temp_##POSTFIX(struct device *dev, \
489 struct device_attribute *attr, char *buf) \
490 { \
491 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \
492 } \
493 static ssize_t label_##POSTFIX(struct device *dev, \
494 struct device_attribute *attr, char *buf) \
495 { \
496 return sprintf(buf, "%s\n", LABEL); \
497 }
498
499 /* Labels as in service guide */
500 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP");
501 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL");
502 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS");
503 TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge");
504 TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP");
505 TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90");
506
507
508 /* Power supply interface */
509 static int bat_status(void)
510 {
511 u8 status0 = ec_read_u8(BAT_STATUS0);
512 u8 status1 = ec_read_u8(BAT_STATUS1);
513
514 if (status0 & BAT_S0_CHARGING)
515 return POWER_SUPPLY_STATUS_CHARGING;
516 if (status0 & BAT_S0_DISCHARGE)
517 return POWER_SUPPLY_STATUS_DISCHARGING;
518 if (status1 & BAT_S1_FULL)
519 return POWER_SUPPLY_STATUS_FULL;
520 return POWER_SUPPLY_STATUS_NOT_CHARGING;
521 }
522
523 static int bat_health(void)
524 {
525 u8 status = ec_read_u8(BAT_STOP_CHARGE1);
526
527 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE)
528 return POWER_SUPPLY_HEALTH_OVERHEAT;
529 if (status & BAT_STOP_CHRG1_OVERVOLTAGE)
530 return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
531 if (status & BAT_STOP_CHRG1_BAD_CELL)
532 return POWER_SUPPLY_HEALTH_DEAD;
533 if (status & BAT_STOP_CHRG1_COMM_FAIL)
534 return POWER_SUPPLY_HEALTH_UNKNOWN;
535 return POWER_SUPPLY_HEALTH_GOOD;
536 }
537
538 static int bat_is_present(void)
539 {
540 u8 status = ec_read_u8(BAT_STATUS2);
541 return ((status & BAT_S1_EXISTS) != 0);
542 }
543
544 static int bat_technology(void)
545 {
546 u8 status = ec_read_u8(BAT_STATUS1);
547
548 if (status & BAT_S1_LiION_OR_NiMH)
549 return POWER_SUPPLY_TECHNOLOGY_LION;
550 return POWER_SUPPLY_TECHNOLOGY_NiMH;
551 }
552
553 static int bat_capacity_level(void)
554 {
555 u8 status0 = ec_read_u8(BAT_STATUS0);
556 u8 status1 = ec_read_u8(BAT_STATUS1);
557 u8 status2 = ec_read_u8(BAT_STATUS2);
558
559 if (status0 & BAT_S0_DISCHRG_CRITICAL
560 || status1 & BAT_S1_EMPTY
561 || status2 & BAT_S2_LOW_LOW)
562 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
563 if (status0 & BAT_S0_LOW)
564 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
565 if (status1 & BAT_S1_FULL)
566 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
567 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
568 }
569
570 static int bat_get_property(struct power_supply *psy,
571 enum power_supply_property psp,
572 union power_supply_propval *val)
573 {
574 struct compal_data *data;
575 data = container_of(psy, struct compal_data, psy);
576
577 switch (psp) {
578 case POWER_SUPPLY_PROP_STATUS:
579 val->intval = bat_status();
580 break;
581 case POWER_SUPPLY_PROP_HEALTH:
582 val->intval = bat_health();
583 break;
584 case POWER_SUPPLY_PROP_PRESENT:
585 val->intval = bat_is_present();
586 break;
587 case POWER_SUPPLY_PROP_TECHNOLOGY:
588 val->intval = bat_technology();
589 break;
590 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
591 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
592 break;
593 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
594 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
595 break;
596 case POWER_SUPPLY_PROP_CURRENT_NOW:
597 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
598 break;
599 case POWER_SUPPLY_PROP_CURRENT_AVG:
600 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
601 break;
602 case POWER_SUPPLY_PROP_POWER_NOW:
603 val->intval = ec_read_u8(BAT_POWER) * 1000000;
604 break;
605 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
606 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
607 break;
608 case POWER_SUPPLY_PROP_CHARGE_NOW:
609 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
610 break;
611 case POWER_SUPPLY_PROP_CAPACITY:
612 val->intval = ec_read_u8(BAT_CAPACITY);
613 break;
614 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
615 val->intval = bat_capacity_level();
616 break;
617 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
618 * the number of degrees, whereas BAT_TEMP is somewhat more
619 * complicated. It looks like this is a negative nember with a
620 * 100/256 divider and an offset of 222. Both were determined
621 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
622 case POWER_SUPPLY_PROP_TEMP:
623 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
624 break;
625 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
626 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
627 break;
628 /* Neither the model name nor manufacturer name work for me. */
629 case POWER_SUPPLY_PROP_MODEL_NAME:
630 val->strval = data->bat_model_name;
631 break;
632 case POWER_SUPPLY_PROP_MANUFACTURER:
633 val->strval = data->bat_manufacturer_name;
634 break;
635 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
636 val->strval = data->bat_serial_number;
637 break;
638 default:
639 break;
640 }
641 return 0;
642 }
643
644
645
646
647
648 /* ============== */
649 /* Driver Globals */
650 /* ============== */
651 static DEVICE_ATTR(wake_up_pme,
652 0644, wake_up_pme_show, wake_up_pme_store);
653 static DEVICE_ATTR(wake_up_modem,
654 0644, wake_up_modem_show, wake_up_modem_store);
655 static DEVICE_ATTR(wake_up_lan,
656 0644, wake_up_lan_show, wake_up_lan_store);
657 static DEVICE_ATTR(wake_up_wlan,
658 0644, wake_up_wlan_show, wake_up_wlan_store);
659 static DEVICE_ATTR(wake_up_key,
660 0644, wake_up_key_show, wake_up_key_store);
661 static DEVICE_ATTR(wake_up_mouse,
662 0644, wake_up_mouse_show, wake_up_mouse_store);
663
664 static SENSOR_DEVICE_ATTR(name, S_IRUGO, hwmon_name_show, NULL, 1);
665 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL, 1);
666 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL, 1);
667 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL, 1);
668 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL, 1);
669 static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL, 1);
670 static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL, 1);
671 static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL, 1);
672 static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL, 1);
673 static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL, 1);
674 static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL, 1);
675 static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL, 1);
676 static SENSOR_DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL, 1);
677 static SENSOR_DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL, 1);
678 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store, 1);
679 static SENSOR_DEVICE_ATTR(pwm1_enable,
680 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store, 0);
681
682 static struct attribute *compal_attributes[] = {
683 &dev_attr_wake_up_pme.attr,
684 &dev_attr_wake_up_modem.attr,
685 &dev_attr_wake_up_lan.attr,
686 &dev_attr_wake_up_wlan.attr,
687 &dev_attr_wake_up_key.attr,
688 &dev_attr_wake_up_mouse.attr,
689 /* Maybe put the sensor-stuff in a separate hwmon-driver? That way,
690 * the hwmon sysfs won't be cluttered with the above files. */
691 &sensor_dev_attr_name.dev_attr.attr,
692 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
693 &sensor_dev_attr_pwm1.dev_attr.attr,
694 &sensor_dev_attr_fan1_input.dev_attr.attr,
695 &sensor_dev_attr_temp1_input.dev_attr.attr,
696 &sensor_dev_attr_temp2_input.dev_attr.attr,
697 &sensor_dev_attr_temp3_input.dev_attr.attr,
698 &sensor_dev_attr_temp4_input.dev_attr.attr,
699 &sensor_dev_attr_temp5_input.dev_attr.attr,
700 &sensor_dev_attr_temp6_input.dev_attr.attr,
701 &sensor_dev_attr_temp1_label.dev_attr.attr,
702 &sensor_dev_attr_temp2_label.dev_attr.attr,
703 &sensor_dev_attr_temp3_label.dev_attr.attr,
704 &sensor_dev_attr_temp4_label.dev_attr.attr,
705 &sensor_dev_attr_temp5_label.dev_attr.attr,
706 &sensor_dev_attr_temp6_label.dev_attr.attr,
707 NULL
708 };
709
710 static struct attribute_group compal_attribute_group = {
711 .attrs = compal_attributes
712 };
713
714 static int __devinit compal_probe(struct platform_device *);
715 static int __devexit compal_remove(struct platform_device *);
716 static struct platform_driver compal_driver = {
717 .driver = {
718 .name = DRIVER_NAME,
719 .owner = THIS_MODULE,
720 },
721 .probe = compal_probe,
722 .remove = __devexit_p(compal_remove)
723 };
724
725 static enum power_supply_property compal_bat_properties[] = {
726 POWER_SUPPLY_PROP_STATUS,
727 POWER_SUPPLY_PROP_HEALTH,
728 POWER_SUPPLY_PROP_PRESENT,
729 POWER_SUPPLY_PROP_TECHNOLOGY,
730 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
731 POWER_SUPPLY_PROP_VOLTAGE_NOW,
732 POWER_SUPPLY_PROP_CURRENT_NOW,
733 POWER_SUPPLY_PROP_CURRENT_AVG,
734 POWER_SUPPLY_PROP_POWER_NOW,
735 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
736 POWER_SUPPLY_PROP_CHARGE_NOW,
737 POWER_SUPPLY_PROP_CAPACITY,
738 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
739 POWER_SUPPLY_PROP_TEMP,
740 POWER_SUPPLY_PROP_TEMP_AMBIENT,
741 POWER_SUPPLY_PROP_MODEL_NAME,
742 POWER_SUPPLY_PROP_MANUFACTURER,
743 POWER_SUPPLY_PROP_SERIAL_NUMBER,
744 };
745
746 static struct backlight_device *compalbl_device;
747
748 static struct platform_device *compal_device;
749
750 static struct rfkill *wifi_rfkill;
751 static struct rfkill *bt_rfkill;
752
753
754
755
756
757 /* =================================== */
758 /* Initialization & clean-up functions */
759 /* =================================== */
760
761 static int dmi_check_cb(const struct dmi_system_id *id)
762 {
763 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n",
764 id->ident);
765 extra_features = false;
766 return 0;
767 }
768
769 static int dmi_check_cb_extra(const struct dmi_system_id *id)
770 {
771 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s', "
772 "enabling extra features\n",
773 id->ident);
774 extra_features = true;
775 return 0;
776 }
777
778 static struct dmi_system_id __initdata compal_dmi_table[] = {
779 {
780 .ident = "FL90/IFL90",
781 .matches = {
782 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
783 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
784 },
785 .callback = dmi_check_cb
786 },
787 {
788 .ident = "FL90/IFL90",
789 .matches = {
790 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
791 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
792 },
793 .callback = dmi_check_cb
794 },
795 {
796 .ident = "FL91/IFL91",
797 .matches = {
798 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
799 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
800 },
801 .callback = dmi_check_cb
802 },
803 {
804 .ident = "FL92/JFL92",
805 .matches = {
806 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
807 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
808 },
809 .callback = dmi_check_cb
810 },
811 {
812 .ident = "FT00/IFT00",
813 .matches = {
814 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
815 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
816 },
817 .callback = dmi_check_cb
818 },
819 {
820 .ident = "Dell Mini 9",
821 .matches = {
822 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
823 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
824 },
825 .callback = dmi_check_cb
826 },
827 {
828 .ident = "Dell Mini 10",
829 .matches = {
830 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
831 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
832 },
833 .callback = dmi_check_cb
834 },
835 {
836 .ident = "Dell Mini 10v",
837 .matches = {
838 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
839 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
840 },
841 .callback = dmi_check_cb
842 },
843 {
844 .ident = "Dell Mini 1012",
845 .matches = {
846 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
847 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
848 },
849 .callback = dmi_check_cb
850 },
851 {
852 .ident = "Dell Inspiron 11z",
853 .matches = {
854 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
855 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
856 },
857 .callback = dmi_check_cb
858 },
859 {
860 .ident = "Dell Mini 12",
861 .matches = {
862 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
863 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
864 },
865 .callback = dmi_check_cb
866 },
867 {
868 .ident = "JHL90",
869 .matches = {
870 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
871 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
872 },
873 .callback = dmi_check_cb_extra
874 },
875 {
876 .ident = "KHLB2",
877 .matches = {
878 DMI_MATCH(DMI_BOARD_NAME, "KHLB2"),
879 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
880 },
881 .callback = dmi_check_cb_extra
882 },
883 { }
884 };
885
886 static void initialize_power_supply_data(struct compal_data *data)
887 {
888 data->psy.name = DRIVER_NAME;
889 data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
890 data->psy.properties = compal_bat_properties;
891 data->psy.num_properties = ARRAY_SIZE(compal_bat_properties);
892 data->psy.get_property = bat_get_property;
893
894 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
895 data->bat_manufacturer_name,
896 BAT_MANUFACTURER_NAME_LEN);
897 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
898
899 ec_read_sequence(BAT_MODEL_NAME_ADDR,
900 data->bat_model_name,
901 BAT_MODEL_NAME_LEN);
902 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
903
904 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
905 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
906 }
907
908 static void initialize_fan_control_data(struct compal_data *data)
909 {
910 data->pwm_enable = 2; /* Keep motherboard in control for now */
911 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception
912 if we take over... */
913 }
914
915 static int setup_rfkill(void)
916 {
917 int ret;
918
919 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
920 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
921 (void *) WIRELESS_WLAN);
922 if (!wifi_rfkill)
923 return -ENOMEM;
924
925 ret = rfkill_register(wifi_rfkill);
926 if (ret)
927 goto err_wifi;
928
929 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
930 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
931 (void *) WIRELESS_BT);
932 if (!bt_rfkill) {
933 ret = -ENOMEM;
934 goto err_allocate_bt;
935 }
936 ret = rfkill_register(bt_rfkill);
937 if (ret)
938 goto err_register_bt;
939
940 return 0;
941
942 err_register_bt:
943 rfkill_destroy(bt_rfkill);
944
945 err_allocate_bt:
946 rfkill_unregister(wifi_rfkill);
947
948 err_wifi:
949 rfkill_destroy(wifi_rfkill);
950
951 return ret;
952 }
953
954 static int __init compal_init(void)
955 {
956 int ret;
957
958 if (acpi_disabled) {
959 printk(KERN_ERR DRIVER_NAME": ACPI needs to be enabled for "
960 "this driver to work!\n");
961 return -ENODEV;
962 }
963
964 if (!force && !dmi_check_system(compal_dmi_table)) {
965 printk(KERN_ERR DRIVER_NAME": Motherboard not recognized (You "
966 "could try the module's force-parameter)");
967 return -ENODEV;
968 }
969
970 if (!acpi_video_backlight_support()) {
971 struct backlight_properties props;
972 memset(&props, 0, sizeof(struct backlight_properties));
973 props.type = BACKLIGHT_PLATFORM;
974 props.max_brightness = BACKLIGHT_LEVEL_MAX;
975 compalbl_device = backlight_device_register(DRIVER_NAME,
976 NULL, NULL,
977 &compalbl_ops,
978 &props);
979 if (IS_ERR(compalbl_device))
980 return PTR_ERR(compalbl_device);
981 }
982
983 ret = platform_driver_register(&compal_driver);
984 if (ret)
985 goto err_backlight;
986
987 compal_device = platform_device_alloc(DRIVER_NAME, -1);
988 if (!compal_device) {
989 ret = -ENOMEM;
990 goto err_platform_driver;
991 }
992
993 ret = platform_device_add(compal_device); /* This calls compal_probe */
994 if (ret)
995 goto err_platform_device;
996
997 ret = setup_rfkill();
998 if (ret)
999 goto err_rfkill;
1000
1001 printk(KERN_INFO DRIVER_NAME": Driver "DRIVER_VERSION
1002 " successfully loaded\n");
1003 return 0;
1004
1005 err_rfkill:
1006 platform_device_del(compal_device);
1007
1008 err_platform_device:
1009 platform_device_put(compal_device);
1010
1011 err_platform_driver:
1012 platform_driver_unregister(&compal_driver);
1013
1014 err_backlight:
1015 backlight_device_unregister(compalbl_device);
1016
1017 return ret;
1018 }
1019
1020 static int __devinit compal_probe(struct platform_device *pdev)
1021 {
1022 int err;
1023 struct compal_data *data;
1024
1025 if (!extra_features)
1026 return 0;
1027
1028 /* Fan control */
1029 data = kzalloc(sizeof(struct compal_data), GFP_KERNEL);
1030 if (!data)
1031 return -ENOMEM;
1032
1033 initialize_fan_control_data(data);
1034
1035 err = sysfs_create_group(&pdev->dev.kobj, &compal_attribute_group);
1036 if (err)
1037 return err;
1038
1039 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1040 if (IS_ERR(data->hwmon_dev)) {
1041 err = PTR_ERR(data->hwmon_dev);
1042 sysfs_remove_group(&pdev->dev.kobj,
1043 &compal_attribute_group);
1044 kfree(data);
1045 return err;
1046 }
1047
1048 /* Power supply */
1049 initialize_power_supply_data(data);
1050 power_supply_register(&compal_device->dev, &data->psy);
1051
1052 platform_set_drvdata(pdev, data);
1053
1054 return 0;
1055 }
1056
1057 static void __exit compal_cleanup(void)
1058 {
1059 platform_device_unregister(compal_device);
1060 platform_driver_unregister(&compal_driver);
1061 backlight_device_unregister(compalbl_device);
1062 rfkill_unregister(wifi_rfkill);
1063 rfkill_unregister(bt_rfkill);
1064 rfkill_destroy(wifi_rfkill);
1065 rfkill_destroy(bt_rfkill);
1066
1067 printk(KERN_INFO DRIVER_NAME": Driver unloaded\n");
1068 }
1069
1070 static int __devexit compal_remove(struct platform_device *pdev)
1071 {
1072 struct compal_data *data;
1073
1074 if (!extra_features)
1075 return 0;
1076
1077 printk(KERN_INFO DRIVER_NAME": Unloading: resetting fan control "
1078 "to motherboard\n");
1079 pwm_disable_control();
1080
1081 data = platform_get_drvdata(pdev);
1082 hwmon_device_unregister(data->hwmon_dev);
1083 power_supply_unregister(&data->psy);
1084
1085 platform_set_drvdata(pdev, NULL);
1086 kfree(data);
1087
1088 sysfs_remove_group(&pdev->dev.kobj, &compal_attribute_group);
1089
1090 return 0;
1091 }
1092
1093
1094 module_init(compal_init);
1095 module_exit(compal_cleanup);
1096
1097 MODULE_AUTHOR("Cezary Jackiewicz");
1098 MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
1099 MODULE_DESCRIPTION("Compal Laptop Support");
1100 MODULE_VERSION(DRIVER_VERSION);
1101 MODULE_LICENSE("GPL");
1102
1103 MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*");
1104 MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*");
1105 MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*");
1106 MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*");
1107 MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*");
1108 MODULE_ALIAS("dmi:*:rnJHL90:rvrREFERENCE:*");
1109 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*");
1110 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*");
1111 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*");
1112 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1012:*");
1113 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1110:*");
1114 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1210:*");
kernel source for telekom puls (alcatel/mediatek)