projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branches 'acpi-video', 'device-properties', 'pm-sleep' and 'pm-cpuidle'
[linux-2.6-block.git] / drivers / platform / x86 / compal-laptop.c
CommitLineData
5411552c
CJ		 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/*
9be0fcb5
RF		 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)
5411552c 45 *
5411552c
CJ		 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
9be0fcb5
RF		 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!
5411552c
CJ		 65 */
66
9be0fcb5
RF		 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
b4a4bc0b
JP		 71#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
72
5411552c
CJ		 73#include <linux/module.h>
74#include <linux/kernel.h>
75#include <linux/init.h>
76#include <linux/acpi.h>
77#include <linux/dmi.h>
78#include <linux/backlight.h>
79#include <linux/platform_device.h>
493e9143 80#include <linux/rfkill.h>
9be0fcb5
RF		 81#include <linux/hwmon.h>
82#include <linux/hwmon-sysfs.h>
83#include <linux/power_supply.h>
84#include <linux/fb.h>
358fefe7 85#include <acpi/video.h>
9be0fcb5
RF		 86
87/* ======= */
88/* Defines */
89/* ======= */
90#define DRIVER_NAME "compal-laptop"
91#define DRIVER_VERSION "0.2.7"
92
93#define BACKLIGHT_LEVEL_ADDR 0xB9
94#define BACKLIGHT_LEVEL_MAX 7
95#define BACKLIGHT_STATE_ADDR 0x59
96#define BACKLIGHT_STATE_ON_DATA 0xE1
97#define BACKLIGHT_STATE_OFF_DATA 0xE2
98
99#define WAKE_UP_ADDR 0xA4
100#define WAKE_UP_PME (1 << 0)
101#define WAKE_UP_MODEM (1 << 1)
102#define WAKE_UP_LAN (1 << 2)
103#define WAKE_UP_WLAN (1 << 4)
104#define WAKE_UP_KEY (1 << 6)
105#define WAKE_UP_MOUSE (1 << 7)
106
107#define WIRELESS_ADDR 0xBB
108#define WIRELESS_WLAN (1 << 0)
109#define WIRELESS_BT (1 << 1)
110#define WIRELESS_WLAN_EXISTS (1 << 2)
111#define WIRELESS_BT_EXISTS (1 << 3)
112#define WIRELESS_KILLSWITCH (1 << 4)
113
114#define PWM_ADDRESS 0x46
115#define PWM_DISABLE_ADDR 0x59
116#define PWM_DISABLE_DATA 0xA5
117#define PWM_ENABLE_ADDR 0x59
118#define PWM_ENABLE_DATA 0xA8
119
120#define FAN_ADDRESS 0x46
121#define FAN_DATA 0x81
122#define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */
123#define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */
124#define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */
125
126#define TEMP_CPU 0xB0
127#define TEMP_CPU_LOCAL 0xB1
128#define TEMP_CPU_DTS 0xB5
129#define TEMP_NORTHBRIDGE 0xB6
130#define TEMP_VGA 0xB4
131#define TEMP_SKIN 0xB2
132
133#define BAT_MANUFACTURER_NAME_ADDR 0x10
134#define BAT_MANUFACTURER_NAME_LEN 9
135#define BAT_MODEL_NAME_ADDR 0x19
136#define BAT_MODEL_NAME_LEN 6
137#define BAT_SERIAL_NUMBER_ADDR 0xC4
138#define BAT_SERIAL_NUMBER_LEN 5
139#define BAT_CHARGE_NOW 0xC2
140#define BAT_CHARGE_DESIGN 0xCA
141#define BAT_VOLTAGE_NOW 0xC6
142#define BAT_VOLTAGE_DESIGN 0xC8
143#define BAT_CURRENT_NOW 0xD0
144#define BAT_CURRENT_AVG 0xD2
145#define BAT_POWER 0xD4
146#define BAT_CAPACITY 0xCE
147#define BAT_TEMP 0xD6
148#define BAT_TEMP_AVG 0xD7
149#define BAT_STATUS0 0xC1
150#define BAT_STATUS1 0xF0
151#define BAT_STATUS2 0xF1
152#define BAT_STOP_CHARGE1 0xF2
153#define BAT_STOP_CHARGE2 0xF3
154
155#define BAT_S0_DISCHARGE (1 << 0)
156#define BAT_S0_DISCHRG_CRITICAL (1 << 2)
157#define BAT_S0_LOW (1 << 3)
158#define BAT_S0_CHARGING (1 << 1)
159#define BAT_S0_AC (1 << 7)
160#define BAT_S1_EXISTS (1 << 0)
161#define BAT_S1_FULL (1 << 1)
162#define BAT_S1_EMPTY (1 << 2)
163#define BAT_S1_LiION_OR_NiMH (1 << 7)
164#define BAT_S2_LOW_LOW (1 << 0)
165#define BAT_STOP_CHRG1_BAD_CELL (1 << 1)
166#define BAT_STOP_CHRG1_COMM_FAIL (1 << 2)
167#define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6)
168#define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7)
169
170
171/* ======= */
172/* Structs */
173/* ======= */
174struct compal_data{
175 /* Fan control */
c2be45f0 176 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by motherboard */
9be0fcb5
RF		 177 unsigned char curr_pwm;
178
179 /* Power supply */
297d716f 180 struct power_supply *psy;
9be0fcb5
RF		 181 struct power_supply_info psy_info;
182 char bat_model_name[BAT_MODEL_NAME_LEN + 1];
183 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
184 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1];
185};
5411552c 186
5411552c 187
9be0fcb5
RF		 188/* =============== */
189/* General globals */
190/* =============== */
90ab5ee9 191static bool force;
9be0fcb5
RF		 192module_param(force, bool, 0);
193MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
5411552c 194
9be0fcb5
RF		 195/* Support for the wake_on_XXX, hwmon and power_supply interface. Currently
196 * only gets enabled on a JHL90 board. Might work with the others too */
197static bool extra_features;
198
199/* Nasty stuff. For some reason the fan control is very un-linear. I've
200 * come up with these values by looping through the possible inputs and
201 * watching the output of address 0x4F (do an ec_transaction writing 0x33
202 * into 0x4F and read a few bytes from the output, like so:
203 * u8 writeData = 0x33;
1cb7b1e0 204 * ec_transaction(0x4F, &writeData, 1, buffer, 32);
751516f0 205 * That address is labeled "fan1 table information" in the service manual.
9be0fcb5
RF		 206 * It should be clear which value in 'buffer' changes). This seems to be
207 * related to fan speed. It isn't a proper 'realtime' fan speed value
208 * though, because physically stopping or speeding up the fan doesn't
209 * change it. It might be the average voltage or current of the pwm output.
210 * Nevertheless, it is more fine-grained than the actual RPM reading */
211static const unsigned char pwm_lookup_table[256] = {
212 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6,
213 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95,
214 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70,
215 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94,
216 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139,
217 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76,
218 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22,
219 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219,
220 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186,
221 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33,
222 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38,
223 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46,
224 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48,
225 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44,
226 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251,
227 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187,
228 187, 187, 193, 50
229};
5411552c 230
5411552c 231
493e9143 232
5411552c 233
9be0fcb5
RF		 234/* ========================= */
235/* Hardware access functions */
236/* ========================= */
237/* General access */
238static u8 ec_read_u8(u8 addr)
239{
240 u8 value;
241 ec_read(addr, &value);
242 return value;
243}
244
245static s8 ec_read_s8(u8 addr)
246{
247 return (s8)ec_read_u8(addr);
248}
249
250static u16 ec_read_u16(u8 addr)
251{
252 int hi, lo;
253 lo = ec_read_u8(addr);
254 hi = ec_read_u8(addr + 1);
255 return (hi << 8) + lo;
256}
257
258static s16 ec_read_s16(u8 addr)
259{
260 return (s16) ec_read_u16(addr);
261}
5411552c 262
9be0fcb5 263static void ec_read_sequence(u8 addr, u8 *buf, int len)
5411552c 264{
9be0fcb5
RF		 265 int i;
266 for (i = 0; i < len; i++)
267 ec_read(addr + i, buf + i);
268}
269
270
271/* Backlight access */
272static int set_backlight_level(int level)
273{
274 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
5411552c
CJ		 275 return -EINVAL;
276
9be0fcb5 277 ec_write(BACKLIGHT_LEVEL_ADDR, level);
5411552c 278
0e4510f7 279 return 0;
5411552c
CJ		 280}
281
9be0fcb5
RF		 282static int get_backlight_level(void)
283{
284 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR);
285}
286
287static void set_backlight_state(bool on)
288{
289 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA;
1cb7b1e0 290 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0);
9be0fcb5
RF		 291}
292
293
294/* Fan control access */
295static void pwm_enable_control(void)
296{
297 unsigned char writeData = PWM_ENABLE_DATA;
1cb7b1e0 298 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0);
9be0fcb5
RF		 299}
300
301static void pwm_disable_control(void)
5411552c 302{
9be0fcb5 303 unsigned char writeData = PWM_DISABLE_DATA;
1cb7b1e0 304 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0);
9be0fcb5 305}
5411552c 306
9be0fcb5
RF		 307static void set_pwm(int pwm)
308{
1cb7b1e0 309 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0);
9be0fcb5
RF		 310}
311
312static int get_fan_rpm(void)
313{
314 u8 value, data = FAN_DATA;
1cb7b1e0 315 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1);
9be0fcb5
RF		 316 return 100 * (int)value;
317}
318
319
320
321
322/* =================== */
323/* Interface functions */
324/* =================== */
325
326/* Backlight interface */
327static int bl_get_brightness(struct backlight_device *b)
328{
329 return get_backlight_level();
330}
331
332static int bl_update_status(struct backlight_device *b)
333{
334 int ret = set_backlight_level(b->props.brightness);
335 if (ret)
336 return ret;
5411552c 337
9be0fcb5
RF		 338 set_backlight_state((b->props.power == FB_BLANK_UNBLANK)
339 && !(b->props.state & BL_CORE_SUSPENDED)
340 && !(b->props.state & BL_CORE_FBBLANK));
341 return 0;
5411552c
CJ		 342}
343
9be0fcb5
RF		 344static const struct backlight_ops compalbl_ops = {
345 .get_brightness = bl_get_brightness,
346 .update_status = bl_update_status,
347};
348
349
350/* Wireless interface */
493e9143 351static int compal_rfkill_set(void *data, bool blocked)
5411552c 352{
493e9143 353 unsigned long radio = (unsigned long) data;
9be0fcb5
RF		 354 u8 result = ec_read_u8(WIRELESS_ADDR);
355 u8 value;
5411552c 356
493e9143
ML		 357 if (!blocked)
358 value = (u8) (result | radio);
359 else
360 value = (u8) (result & ~radio);
9be0fcb5 361 ec_write(WIRELESS_ADDR, value);
5411552c
CJ		 362
363 return 0;
364}
365
493e9143 366static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
5411552c 367{
9be0fcb5
RF		 368 u8 result = ec_read_u8(WIRELESS_ADDR);
369 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
493e9143 370 rfkill_set_hw_state(rfkill, hw_blocked);
5411552c
CJ		 371}
372
493e9143
ML		 373static const struct rfkill_ops compal_rfkill_ops = {
374 .poll = compal_rfkill_poll,
375 .set_block = compal_rfkill_set,
376};
377
9be0fcb5
RF		 378
379/* Wake_up interface */
380#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \
381static ssize_t NAME##_show(struct device *dev, \
382 struct device_attribute *attr, char *buf) \
383{ \
384 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \
385} \
386static ssize_t NAME##_store(struct device *dev, \
387 struct device_attribute *attr, const char *buf, size_t count) \
388{ \
389 int state; \
390 u8 old_val = ec_read_u8(ADDR); \
391 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \
392 return -EINVAL; \
393 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \
394 return count; \
395}
396
397SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME)
398SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM)
399SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN)
400SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN)
401SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY)
402SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE)
403
9be0fcb5
RF		 404/* Fan control interface */
405static ssize_t pwm_enable_show(struct device *dev,
406 struct device_attribute *attr, char *buf)
407{
408 struct compal_data *data = dev_get_drvdata(dev);
409 return sprintf(buf, "%d\n", data->pwm_enable);
410}
5411552c 411
9be0fcb5
RF		 412static ssize_t pwm_enable_store(struct device *dev,
413 struct device_attribute *attr, const char *buf, size_t count)
414{
415 struct compal_data *data = dev_get_drvdata(dev);
416 long val;
417 int err;
0db7fd96
JH		 418
419 err = kstrtol(buf, 10, &val);
9be0fcb5
RF		 420 if (err)
421 return err;
422 if (val < 0)
423 return -EINVAL;
424
425 data->pwm_enable = val;
426
427 switch (val) {
428 case 0: /* Full speed */
429 pwm_enable_control();
430 set_pwm(255);
431 break;
432 case 1: /* As set by pwm1 */
433 pwm_enable_control();
434 set_pwm(data->curr_pwm);
435 break;
436 default: /* Control by motherboard */
437 pwm_disable_control();
438 break;
5411552c
CJ		 439 }
440
9be0fcb5
RF		 441 return count;
442}
493e9143 443
9be0fcb5
RF		 444static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
445 char *buf)
446{
447 struct compal_data *data = dev_get_drvdata(dev);
448 return sprintf(buf, "%hhu\n", data->curr_pwm);
449}
493e9143 450
9be0fcb5
RF		 451static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
452 const char *buf, size_t count)
453{
454 struct compal_data *data = dev_get_drvdata(dev);
455 long val;
456 int err;
0db7fd96
JH		 457
458 err = kstrtol(buf, 10, &val);
9be0fcb5
RF		 459 if (err)
460 return err;
461 if (val < 0 || val > 255)
462 return -EINVAL;
493e9143 463
9be0fcb5 464 data->curr_pwm = val;
493e9143 465
9be0fcb5
RF		 466 if (data->pwm_enable != 1)
467 return count;
468 set_pwm(val);
469
470 return count;
5411552c
CJ		 471}
472
9be0fcb5
RF		 473static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
474 char *buf)
475{
476 return sprintf(buf, "%d\n", get_fan_rpm());
477}
5411552c 478
9be0fcb5
RF		 479
480/* Temperature interface */
481#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \
482static ssize_t temp_##POSTFIX(struct device *dev, \
483 struct device_attribute *attr, char *buf) \
484{ \
485 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \
486} \
487static ssize_t label_##POSTFIX(struct device *dev, \
488 struct device_attribute *attr, char *buf) \
489{ \
490 return sprintf(buf, "%s\n", LABEL); \
491}
492
493/* Labels as in service guide */
494TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP");
495TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL");
496TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS");
497TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge");
498TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP");
499TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90");
500
501
502/* Power supply interface */
503static int bat_status(void)
5411552c 504{
9be0fcb5
RF		 505 u8 status0 = ec_read_u8(BAT_STATUS0);
506 u8 status1 = ec_read_u8(BAT_STATUS1);
507
508 if (status0 & BAT_S0_CHARGING)
509 return POWER_SUPPLY_STATUS_CHARGING;
510 if (status0 & BAT_S0_DISCHARGE)
511 return POWER_SUPPLY_STATUS_DISCHARGING;
512 if (status1 & BAT_S1_FULL)
513 return POWER_SUPPLY_STATUS_FULL;
514 return POWER_SUPPLY_STATUS_NOT_CHARGING;
5411552c
CJ		 515}
516
9be0fcb5
RF		 517static int bat_health(void)
518{
519 u8 status = ec_read_u8(BAT_STOP_CHARGE1);
520
521 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE)
522 return POWER_SUPPLY_HEALTH_OVERHEAT;
523 if (status & BAT_STOP_CHRG1_OVERVOLTAGE)
524 return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
525 if (status & BAT_STOP_CHRG1_BAD_CELL)
526 return POWER_SUPPLY_HEALTH_DEAD;
527 if (status & BAT_STOP_CHRG1_COMM_FAIL)
528 return POWER_SUPPLY_HEALTH_UNKNOWN;
529 return POWER_SUPPLY_HEALTH_GOOD;
530}
5411552c 531
9be0fcb5 532static int bat_is_present(void)
5411552c 533{
9be0fcb5
RF		 534 u8 status = ec_read_u8(BAT_STATUS2);
535 return ((status & BAT_S1_EXISTS) != 0);
536}
537
538static int bat_technology(void)
539{
540 u8 status = ec_read_u8(BAT_STATUS1);
541
542 if (status & BAT_S1_LiION_OR_NiMH)
543 return POWER_SUPPLY_TECHNOLOGY_LION;
544 return POWER_SUPPLY_TECHNOLOGY_NiMH;
545}
546
547static int bat_capacity_level(void)
548{
549 u8 status0 = ec_read_u8(BAT_STATUS0);
550 u8 status1 = ec_read_u8(BAT_STATUS1);
551 u8 status2 = ec_read_u8(BAT_STATUS2);
552
553 if (status0 & BAT_S0_DISCHRG_CRITICAL
554 || status1 & BAT_S1_EMPTY
555 || status2 & BAT_S2_LOW_LOW)
556 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
557 if (status0 & BAT_S0_LOW)
558 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
559 if (status1 & BAT_S1_FULL)
560 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
561 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
562}
563
564static int bat_get_property(struct power_supply *psy,
565 enum power_supply_property psp,
566 union power_supply_propval *val)
567{
297d716f 568 struct compal_data *data = power_supply_get_drvdata(psy);
9be0fcb5
RF		 569
570 switch (psp) {
571 case POWER_SUPPLY_PROP_STATUS:
572 val->intval = bat_status();
573 break;
574 case POWER_SUPPLY_PROP_HEALTH:
575 val->intval = bat_health();
576 break;
577 case POWER_SUPPLY_PROP_PRESENT:
578 val->intval = bat_is_present();
579 break;
580 case POWER_SUPPLY_PROP_TECHNOLOGY:
581 val->intval = bat_technology();
582 break;
583 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
584 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
585 break;
586 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
587 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
588 break;
589 case POWER_SUPPLY_PROP_CURRENT_NOW:
590 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
591 break;
592 case POWER_SUPPLY_PROP_CURRENT_AVG:
593 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
594 break;
595 case POWER_SUPPLY_PROP_POWER_NOW:
596 val->intval = ec_read_u8(BAT_POWER) * 1000000;
597 break;
598 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
599 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
600 break;
601 case POWER_SUPPLY_PROP_CHARGE_NOW:
602 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
603 break;
604 case POWER_SUPPLY_PROP_CAPACITY:
605 val->intval = ec_read_u8(BAT_CAPACITY);
606 break;
607 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
608 val->intval = bat_capacity_level();
609 break;
610 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
611 * the number of degrees, whereas BAT_TEMP is somewhat more
612 * complicated. It looks like this is a negative nember with a
613 * 100/256 divider and an offset of 222. Both were determined
614 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
615 case POWER_SUPPLY_PROP_TEMP:
616 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
617 break;
618 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
619 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
620 break;
621 /* Neither the model name nor manufacturer name work for me. */
622 case POWER_SUPPLY_PROP_MODEL_NAME:
623 val->strval = data->bat_model_name;
624 break;
625 case POWER_SUPPLY_PROP_MANUFACTURER:
626 val->strval = data->bat_manufacturer_name;
627 break;
628 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
629 val->strval = data->bat_serial_number;
630 break;
631 default:
632 break;
633 }
634 return 0;
5411552c
CJ		 635}
636
5411552c 637
5411552c 638
5411552c 639
9be0fcb5
RF		 640
641/* ============== */
642/* Driver Globals */
643/* ============== */
644static DEVICE_ATTR(wake_up_pme,
645 0644, wake_up_pme_show, wake_up_pme_store);
646static DEVICE_ATTR(wake_up_modem,
647 0644, wake_up_modem_show, wake_up_modem_store);
648static DEVICE_ATTR(wake_up_lan,
649 0644, wake_up_lan_show, wake_up_lan_store);
650static DEVICE_ATTR(wake_up_wlan,
651 0644, wake_up_wlan_show, wake_up_wlan_store);
652static DEVICE_ATTR(wake_up_key,
653 0644, wake_up_key_show, wake_up_key_store);
654static DEVICE_ATTR(wake_up_mouse,
655 0644, wake_up_mouse_show, wake_up_mouse_store);
656
4e062581
GR		 657static DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL);
658static DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL);
659static DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL);
660static DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL);
661static DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL);
662static DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL);
663static DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL);
664static DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL);
665static DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL);
666static DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL);
667static DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL);
668static DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL);
669static DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL);
670static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store);
671static DEVICE_ATTR(pwm1_enable,
672 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store);
9be0fcb5 673
c2be45f0 674static struct attribute *compal_platform_attrs[] = {
9be0fcb5
RF		 675 &dev_attr_wake_up_pme.attr,
676 &dev_attr_wake_up_modem.attr,
677 &dev_attr_wake_up_lan.attr,
678 &dev_attr_wake_up_wlan.attr,
679 &dev_attr_wake_up_key.attr,
680 &dev_attr_wake_up_mouse.attr,
c2be45f0
GR		 681 NULL
682};
683static struct attribute_group compal_platform_attr_group = {
684 .attrs = compal_platform_attrs
685};
686
687static struct attribute *compal_hwmon_attrs[] = {
4e062581
GR		 688 &dev_attr_pwm1_enable.attr,
689 &dev_attr_pwm1.attr,
690 &dev_attr_fan1_input.attr,
691 &dev_attr_temp1_input.attr,
692 &dev_attr_temp2_input.attr,
693 &dev_attr_temp3_input.attr,
694 &dev_attr_temp4_input.attr,
695 &dev_attr_temp5_input.attr,
696 &dev_attr_temp6_input.attr,
697 &dev_attr_temp1_label.attr,
698 &dev_attr_temp2_label.attr,
699 &dev_attr_temp3_label.attr,
700 &dev_attr_temp4_label.attr,
701 &dev_attr_temp5_label.attr,
702 &dev_attr_temp6_label.attr,
9be0fcb5
RF		 703 NULL
704};
c2be45f0 705ATTRIBUTE_GROUPS(compal_hwmon);
9be0fcb5 706
b859f159
GKH		 707static int compal_probe(struct platform_device *);
708static int compal_remove(struct platform_device *);
5411552c
CJ		 709static struct platform_driver compal_driver = {
710 .driver = {
9be0fcb5 711 .name = DRIVER_NAME,
9be0fcb5
RF		 712 },
713 .probe = compal_probe,
b859f159 714 .remove = compal_remove,
9be0fcb5
RF		 715};
716
717static enum power_supply_property compal_bat_properties[] = {
718 POWER_SUPPLY_PROP_STATUS,
719 POWER_SUPPLY_PROP_HEALTH,
720 POWER_SUPPLY_PROP_PRESENT,
721 POWER_SUPPLY_PROP_TECHNOLOGY,
722 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
723 POWER_SUPPLY_PROP_VOLTAGE_NOW,
724 POWER_SUPPLY_PROP_CURRENT_NOW,
725 POWER_SUPPLY_PROP_CURRENT_AVG,
726 POWER_SUPPLY_PROP_POWER_NOW,
727 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
728 POWER_SUPPLY_PROP_CHARGE_NOW,
729 POWER_SUPPLY_PROP_CAPACITY,
730 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
731 POWER_SUPPLY_PROP_TEMP,
732 POWER_SUPPLY_PROP_TEMP_AMBIENT,
733 POWER_SUPPLY_PROP_MODEL_NAME,
734 POWER_SUPPLY_PROP_MANUFACTURER,
735 POWER_SUPPLY_PROP_SERIAL_NUMBER,
5411552c
CJ		 736};
737
9be0fcb5
RF		 738static struct backlight_device *compalbl_device;
739
740static struct platform_device *compal_device;
741
742static struct rfkill *wifi_rfkill;
743static struct rfkill *bt_rfkill;
744
745
746
747
748
749/* =================================== */
750/* Initialization & clean-up functions */
751/* =================================== */
5411552c
CJ		 752
753static int dmi_check_cb(const struct dmi_system_id *id)
754{
b4a4bc0b 755 pr_info("Identified laptop model '%s'\n", id->ident);
9be0fcb5 756 extra_features = false;
0e4510f7 757 return 1;
9be0fcb5 758}
5411552c 759
9be0fcb5
RF		 760static int dmi_check_cb_extra(const struct dmi_system_id *id)
761{
b4a4bc0b 762 pr_info("Identified laptop model '%s', enabling extra features\n",
9be0fcb5
RF		 763 id->ident);
764 extra_features = true;
0e4510f7 765 return 1;
5411552c
CJ		 766}
767
768static struct dmi_system_id __initdata compal_dmi_table[] = {
769 {
770 .ident = "FL90/IFL90",
771 .matches = {
772 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
773 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
774 },
775 .callback = dmi_check_cb
776 },
777 {
778 .ident = "FL90/IFL90",
779 .matches = {
780 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
781 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
782 },
783 .callback = dmi_check_cb
784 },
785 {
786 .ident = "FL91/IFL91",
787 .matches = {
788 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
789 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
790 },
791 .callback = dmi_check_cb
792 },
793 {
794 .ident = "FL92/JFL92",
795 .matches = {
796 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
797 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
798 },
799 .callback = dmi_check_cb
800 },
801 {
802 .ident = "FT00/IFT00",
803 .matches = {
804 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
805 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
806 },
807 .callback = dmi_check_cb
808 },
34325b9d
ML		 809 {
810 .ident = "Dell Mini 9",
811 .matches = {
812 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
813 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
814 },
815 .callback = dmi_check_cb
816 },
817 {
818 .ident = "Dell Mini 10",
819 .matches = {
820 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
821 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
822 },
823 .callback = dmi_check_cb
824 },
825 {
826 .ident = "Dell Mini 10v",
827 .matches = {
828 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
829 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
830 },
831 .callback = dmi_check_cb
832 },
c3f755e3
VE		 833 {
834 .ident = "Dell Mini 1012",
835 .matches = {
836 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
837 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
838 },
839 .callback = dmi_check_cb
840 },
34325b9d
ML		 841 {
842 .ident = "Dell Inspiron 11z",
843 .matches = {
844 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
845 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
846 },
847 .callback = dmi_check_cb
848 },
849 {
850 .ident = "Dell Mini 12",
851 .matches = {
852 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
853 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
854 },
855 .callback = dmi_check_cb
856 },
9be0fcb5
RF		 857 {
858 .ident = "JHL90",
859 .matches = {
860 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
861 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
862 },
863 .callback = dmi_check_cb_extra
864 },
4a198be7
AAC		 865 {
866 .ident = "KHLB2",
867 .matches = {
868 DMI_MATCH(DMI_BOARD_NAME, "KHLB2"),
869 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
870 },
871 .callback = dmi_check_cb_extra
872 },
5411552c
CJ		 873 { }
874};
4585aba7 875MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
5411552c 876
297d716f
KK		 877static const struct power_supply_desc psy_bat_desc = {
878 .name = DRIVER_NAME,
879 .type = POWER_SUPPLY_TYPE_BATTERY,
880 .properties = compal_bat_properties,
881 .num_properties = ARRAY_SIZE(compal_bat_properties),
882 .get_property = bat_get_property,
883};
884
9be0fcb5
RF		 885static void initialize_power_supply_data(struct compal_data *data)
886{
9be0fcb5
RF		 887
888 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
889 data->bat_manufacturer_name,
890 BAT_MANUFACTURER_NAME_LEN);
891 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
892
893 ec_read_sequence(BAT_MODEL_NAME_ADDR,
894 data->bat_model_name,
895 BAT_MODEL_NAME_LEN);
896 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
897
898 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
899 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
900}
901
902static void initialize_fan_control_data(struct compal_data *data)
903{
904 data->pwm_enable = 2; /* Keep motherboard in control for now */
905 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception
906 if we take over... */
907}
908
909static int setup_rfkill(void)
910{
911 int ret;
912
913 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
914 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
915 (void *) WIRELESS_WLAN);
916 if (!wifi_rfkill)
917 return -ENOMEM;
918
919 ret = rfkill_register(wifi_rfkill);
920 if (ret)
921 goto err_wifi;
922
923 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
924 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
925 (void *) WIRELESS_BT);
926 if (!bt_rfkill) {
927 ret = -ENOMEM;
928 goto err_allocate_bt;
929 }
930 ret = rfkill_register(bt_rfkill);
931 if (ret)
932 goto err_register_bt;
933
934 return 0;
935
936err_register_bt:
937 rfkill_destroy(bt_rfkill);
938
939err_allocate_bt:
940 rfkill_unregister(wifi_rfkill);
941
942err_wifi:
943 rfkill_destroy(wifi_rfkill);
944
945 return ret;
946}
947
5411552c
CJ		 948static int __init compal_init(void)
949{
950 int ret;
951
9be0fcb5 952 if (acpi_disabled) {
b4a4bc0b 953 pr_err("ACPI needs to be enabled for this driver to work!\n");
5411552c 954 return -ENODEV;
9be0fcb5 955 }
5411552c 956
9be0fcb5 957 if (!force && !dmi_check_system(compal_dmi_table)) {
b4a4bc0b 958 pr_err("Motherboard not recognized (You could try the module's force-parameter)\n");
5411552c 959 return -ENODEV;
9be0fcb5 960 }
5411552c 961
358fefe7 962 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
a19a6ee6
MG		 963 struct backlight_properties props;
964 memset(&props, 0, sizeof(struct backlight_properties));
bb7ca747 965 props.type = BACKLIGHT_PLATFORM;
9be0fcb5
RF		 966 props.max_brightness = BACKLIGHT_LEVEL_MAX;
967 compalbl_device = backlight_device_register(DRIVER_NAME,
a19a6ee6
MG		 968 NULL, NULL,
969 &compalbl_ops,
970 &props);
29454f17
TR		 971 if (IS_ERR(compalbl_device))
972 return PTR_ERR(compalbl_device);
29454f17 973 }
5411552c
CJ		 974
975 ret = platform_driver_register(&compal_driver);
976 if (ret)
9be0fcb5 977 goto err_backlight;
5411552c 978
9be0fcb5 979 compal_device = platform_device_alloc(DRIVER_NAME, -1);
5411552c
CJ		 980 if (!compal_device) {
981 ret = -ENOMEM;
9be0fcb5 982 goto err_platform_driver;
5411552c
CJ		 983 }
984
9be0fcb5 985 ret = platform_device_add(compal_device); /* This calls compal_probe */
5411552c 986 if (ret)
9be0fcb5 987 goto err_platform_device;
5411552c 988
493e9143 989 ret = setup_rfkill();
5411552c 990 if (ret)
9be0fcb5 991 goto err_rfkill;
5411552c 992
b4a4bc0b 993 pr_info("Driver " DRIVER_VERSION " successfully loaded\n");
5411552c
CJ		 994 return 0;
995
9be0fcb5 996err_rfkill:
5411552c
CJ		 997 platform_device_del(compal_device);
998
9be0fcb5 999err_platform_device:
5411552c
CJ		 1000 platform_device_put(compal_device);
1001
9be0fcb5 1002err_platform_driver:
5411552c
CJ		 1003 platform_driver_unregister(&compal_driver);
1004
9be0fcb5 1005err_backlight:
5411552c
CJ		 1006 backlight_device_unregister(compalbl_device);
1007
1008 return ret;
1009}
1010
b859f159 1011static int compal_probe(struct platform_device *pdev)
5411552c 1012{
9be0fcb5
RF		 1013 int err;
1014 struct compal_data *data;
c2be45f0 1015 struct device *hwmon_dev;
297d716f 1016 struct power_supply_config psy_cfg = {};
9be0fcb5
RF		 1017
1018 if (!extra_features)
1019 return 0;
1020
1021 /* Fan control */
cf508f44 1022 data = devm_kzalloc(&pdev->dev, sizeof(struct compal_data), GFP_KERNEL);
9be0fcb5
RF		 1023 if (!data)
1024 return -ENOMEM;
1025
1026 initialize_fan_control_data(data);
1027
c2be45f0 1028 err = sysfs_create_group(&pdev->dev.kobj, &compal_platform_attr_group);
cf508f44 1029 if (err)
9be0fcb5
RF		 1030 return err;
1031
ad774702
KK		 1032 hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
1033 "compal", data,
1034 compal_hwmon_groups);
c2be45f0
GR		 1035 if (IS_ERR(hwmon_dev)) {
1036 err = PTR_ERR(hwmon_dev);
1037 goto remove;
9be0fcb5
RF		 1038 }
1039
1040 /* Power supply */
1041 initialize_power_supply_data(data);
297d716f
KK		 1042 psy_cfg.drv_data = data;
1043 data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc,
1044 &psy_cfg);
1045 if (IS_ERR(data->psy)) {
1046 err = PTR_ERR(data->psy);
1915a718 1047 goto remove;
297d716f 1048 }
9be0fcb5
RF		 1049
1050 platform_set_drvdata(pdev, data);
1051
1052 return 0;
c2be45f0
GR		 1053
1054remove:
1055 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1056 return err;
9be0fcb5 1057}
5411552c 1058
9be0fcb5
RF		 1059static void __exit compal_cleanup(void)
1060{
5411552c
CJ		 1061 platform_device_unregister(compal_device);
1062 platform_driver_unregister(&compal_driver);
1063 backlight_device_unregister(compalbl_device);
493e9143 1064 rfkill_unregister(wifi_rfkill);
493e9143 1065 rfkill_unregister(bt_rfkill);
9be0fcb5 1066 rfkill_destroy(wifi_rfkill);
493e9143 1067 rfkill_destroy(bt_rfkill);
5411552c 1068
b4a4bc0b 1069 pr_info("Driver unloaded\n");
5411552c
CJ		 1070}
1071
b859f159 1072static int compal_remove(struct platform_device *pdev)
9be0fcb5
RF		 1073{
1074 struct compal_data *data;
1075
1076 if (!extra_features)
1077 return 0;
1078
b4a4bc0b 1079 pr_info("Unloading: resetting fan control to motherboard\n");
9be0fcb5
RF		 1080 pwm_disable_control();
1081
1082 data = platform_get_drvdata(pdev);
297d716f 1083 power_supply_unregister(data->psy);
9be0fcb5 1084
c2be45f0 1085 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
9be0fcb5
RF		 1086
1087 return 0;
1088}
1089
1090
5411552c
CJ		 1091module_init(compal_init);
1092module_exit(compal_cleanup);
1093
1094MODULE_AUTHOR("Cezary Jackiewicz");
9be0fcb5 1095MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
5411552c 1096MODULE_DESCRIPTION("Compal Laptop Support");
9be0fcb5 1097MODULE_VERSION(DRIVER_VERSION);
5411552c 1098MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)