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power_supply: Move run-time configuration to separate structure
[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>
85
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 */
180 struct power_supply psy;
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{
568 struct compal_data *data;
569 data = container_of(psy, struct compal_data, psy);
570
571 switch (psp) {
572 case POWER_SUPPLY_PROP_STATUS:
573 val->intval = bat_status();
574 break;
575 case POWER_SUPPLY_PROP_HEALTH:
576 val->intval = bat_health();
577 break;
578 case POWER_SUPPLY_PROP_PRESENT:
579 val->intval = bat_is_present();
580 break;
581 case POWER_SUPPLY_PROP_TECHNOLOGY:
582 val->intval = bat_technology();
583 break;
584 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
585 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
586 break;
587 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
588 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
589 break;
590 case POWER_SUPPLY_PROP_CURRENT_NOW:
591 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
592 break;
593 case POWER_SUPPLY_PROP_CURRENT_AVG:
594 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
595 break;
596 case POWER_SUPPLY_PROP_POWER_NOW:
597 val->intval = ec_read_u8(BAT_POWER) * 1000000;
598 break;
599 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
600 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
601 break;
602 case POWER_SUPPLY_PROP_CHARGE_NOW:
603 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
604 break;
605 case POWER_SUPPLY_PROP_CAPACITY:
606 val->intval = ec_read_u8(BAT_CAPACITY);
607 break;
608 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
609 val->intval = bat_capacity_level();
610 break;
611 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
612 * the number of degrees, whereas BAT_TEMP is somewhat more
613 * complicated. It looks like this is a negative nember with a
614 * 100/256 divider and an offset of 222. Both were determined
615 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
616 case POWER_SUPPLY_PROP_TEMP:
617 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
618 break;
619 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
620 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
621 break;
622 /* Neither the model name nor manufacturer name work for me. */
623 case POWER_SUPPLY_PROP_MODEL_NAME:
624 val->strval = data->bat_model_name;
625 break;
626 case POWER_SUPPLY_PROP_MANUFACTURER:
627 val->strval = data->bat_manufacturer_name;
628 break;
629 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
630 val->strval = data->bat_serial_number;
631 break;
632 default:
633 break;
634 }
635 return 0;
5411552c
CJ		 636}
637
5411552c 638
5411552c 639
5411552c 640
9be0fcb5
RF		 641
642/* ============== */
643/* Driver Globals */
644/* ============== */
645static DEVICE_ATTR(wake_up_pme,
646 0644, wake_up_pme_show, wake_up_pme_store);
647static DEVICE_ATTR(wake_up_modem,
648 0644, wake_up_modem_show, wake_up_modem_store);
649static DEVICE_ATTR(wake_up_lan,
650 0644, wake_up_lan_show, wake_up_lan_store);
651static DEVICE_ATTR(wake_up_wlan,
652 0644, wake_up_wlan_show, wake_up_wlan_store);
653static DEVICE_ATTR(wake_up_key,
654 0644, wake_up_key_show, wake_up_key_store);
655static DEVICE_ATTR(wake_up_mouse,
656 0644, wake_up_mouse_show, wake_up_mouse_store);
657
4e062581
GR		 658static DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL);
659static DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL);
660static DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL);
661static DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL);
662static DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL);
663static DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL);
664static DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL);
665static DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL);
666static DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL);
667static DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL);
668static DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL);
669static DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL);
670static DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL);
671static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store);
672static DEVICE_ATTR(pwm1_enable,
673 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store);
9be0fcb5 674
c2be45f0 675static struct attribute *compal_platform_attrs[] = {
9be0fcb5
RF		 676 &dev_attr_wake_up_pme.attr,
677 &dev_attr_wake_up_modem.attr,
678 &dev_attr_wake_up_lan.attr,
679 &dev_attr_wake_up_wlan.attr,
680 &dev_attr_wake_up_key.attr,
681 &dev_attr_wake_up_mouse.attr,
c2be45f0
GR		 682 NULL
683};
684static struct attribute_group compal_platform_attr_group = {
685 .attrs = compal_platform_attrs
686};
687
688static struct attribute *compal_hwmon_attrs[] = {
4e062581
GR		 689 &dev_attr_pwm1_enable.attr,
690 &dev_attr_pwm1.attr,
691 &dev_attr_fan1_input.attr,
692 &dev_attr_temp1_input.attr,
693 &dev_attr_temp2_input.attr,
694 &dev_attr_temp3_input.attr,
695 &dev_attr_temp4_input.attr,
696 &dev_attr_temp5_input.attr,
697 &dev_attr_temp6_input.attr,
698 &dev_attr_temp1_label.attr,
699 &dev_attr_temp2_label.attr,
700 &dev_attr_temp3_label.attr,
701 &dev_attr_temp4_label.attr,
702 &dev_attr_temp5_label.attr,
703 &dev_attr_temp6_label.attr,
9be0fcb5
RF		 704 NULL
705};
c2be45f0 706ATTRIBUTE_GROUPS(compal_hwmon);
9be0fcb5 707
b859f159
GKH		 708static int compal_probe(struct platform_device *);
709static int compal_remove(struct platform_device *);
5411552c
CJ		 710static struct platform_driver compal_driver = {
711 .driver = {
9be0fcb5 712 .name = DRIVER_NAME,
9be0fcb5
RF		 713 },
714 .probe = compal_probe,
b859f159 715 .remove = compal_remove,
9be0fcb5
RF		 716};
717
718static enum power_supply_property compal_bat_properties[] = {
719 POWER_SUPPLY_PROP_STATUS,
720 POWER_SUPPLY_PROP_HEALTH,
721 POWER_SUPPLY_PROP_PRESENT,
722 POWER_SUPPLY_PROP_TECHNOLOGY,
723 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
724 POWER_SUPPLY_PROP_VOLTAGE_NOW,
725 POWER_SUPPLY_PROP_CURRENT_NOW,
726 POWER_SUPPLY_PROP_CURRENT_AVG,
727 POWER_SUPPLY_PROP_POWER_NOW,
728 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
729 POWER_SUPPLY_PROP_CHARGE_NOW,
730 POWER_SUPPLY_PROP_CAPACITY,
731 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
732 POWER_SUPPLY_PROP_TEMP,
733 POWER_SUPPLY_PROP_TEMP_AMBIENT,
734 POWER_SUPPLY_PROP_MODEL_NAME,
735 POWER_SUPPLY_PROP_MANUFACTURER,
736 POWER_SUPPLY_PROP_SERIAL_NUMBER,
5411552c
CJ		 737};
738
9be0fcb5
RF		 739static struct backlight_device *compalbl_device;
740
741static struct platform_device *compal_device;
742
743static struct rfkill *wifi_rfkill;
744static struct rfkill *bt_rfkill;
745
746
747
748
749
750/* =================================== */
751/* Initialization & clean-up functions */
752/* =================================== */
5411552c
CJ		 753
754static int dmi_check_cb(const struct dmi_system_id *id)
755{
b4a4bc0b 756 pr_info("Identified laptop model '%s'\n", id->ident);
9be0fcb5 757 extra_features = false;
0e4510f7 758 return 1;
9be0fcb5 759}
5411552c 760
9be0fcb5
RF		 761static int dmi_check_cb_extra(const struct dmi_system_id *id)
762{
b4a4bc0b 763 pr_info("Identified laptop model '%s', enabling extra features\n",
9be0fcb5
RF		 764 id->ident);
765 extra_features = true;
0e4510f7 766 return 1;
5411552c
CJ		 767}
768
769static struct dmi_system_id __initdata compal_dmi_table[] = {
770 {
771 .ident = "FL90/IFL90",
772 .matches = {
773 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
774 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
775 },
776 .callback = dmi_check_cb
777 },
778 {
779 .ident = "FL90/IFL90",
780 .matches = {
781 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
782 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
783 },
784 .callback = dmi_check_cb
785 },
786 {
787 .ident = "FL91/IFL91",
788 .matches = {
789 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
790 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
791 },
792 .callback = dmi_check_cb
793 },
794 {
795 .ident = "FL92/JFL92",
796 .matches = {
797 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
798 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
799 },
800 .callback = dmi_check_cb
801 },
802 {
803 .ident = "FT00/IFT00",
804 .matches = {
805 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
806 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
807 },
808 .callback = dmi_check_cb
809 },
34325b9d
ML		 810 {
811 .ident = "Dell Mini 9",
812 .matches = {
813 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
814 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
815 },
816 .callback = dmi_check_cb
817 },
818 {
819 .ident = "Dell Mini 10",
820 .matches = {
821 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
822 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
823 },
824 .callback = dmi_check_cb
825 },
826 {
827 .ident = "Dell Mini 10v",
828 .matches = {
829 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
830 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
831 },
832 .callback = dmi_check_cb
833 },
c3f755e3
VE		 834 {
835 .ident = "Dell Mini 1012",
836 .matches = {
837 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
838 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
839 },
840 .callback = dmi_check_cb
841 },
34325b9d
ML		 842 {
843 .ident = "Dell Inspiron 11z",
844 .matches = {
845 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
846 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
847 },
848 .callback = dmi_check_cb
849 },
850 {
851 .ident = "Dell Mini 12",
852 .matches = {
853 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
854 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
855 },
856 .callback = dmi_check_cb
857 },
9be0fcb5
RF		 858 {
859 .ident = "JHL90",
860 .matches = {
861 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
862 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
863 },
864 .callback = dmi_check_cb_extra
865 },
4a198be7
AAC		 866 {
867 .ident = "KHLB2",
868 .matches = {
869 DMI_MATCH(DMI_BOARD_NAME, "KHLB2"),
870 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
871 },
872 .callback = dmi_check_cb_extra
873 },
5411552c
CJ		 874 { }
875};
4585aba7 876MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
5411552c 877
9be0fcb5
RF		 878static void initialize_power_supply_data(struct compal_data *data)
879{
880 data->psy.name = DRIVER_NAME;
881 data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
882 data->psy.properties = compal_bat_properties;
883 data->psy.num_properties = ARRAY_SIZE(compal_bat_properties);
884 data->psy.get_property = bat_get_property;
885
886 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
887 data->bat_manufacturer_name,
888 BAT_MANUFACTURER_NAME_LEN);
889 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
890
891 ec_read_sequence(BAT_MODEL_NAME_ADDR,
892 data->bat_model_name,
893 BAT_MODEL_NAME_LEN);
894 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
895
896 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
897 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
898}
899
900static void initialize_fan_control_data(struct compal_data *data)
901{
902 data->pwm_enable = 2; /* Keep motherboard in control for now */
903 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception
904 if we take over... */
905}
906
907static int setup_rfkill(void)
908{
909 int ret;
910
911 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
912 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
913 (void *) WIRELESS_WLAN);
914 if (!wifi_rfkill)
915 return -ENOMEM;
916
917 ret = rfkill_register(wifi_rfkill);
918 if (ret)
919 goto err_wifi;
920
921 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
922 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
923 (void *) WIRELESS_BT);
924 if (!bt_rfkill) {
925 ret = -ENOMEM;
926 goto err_allocate_bt;
927 }
928 ret = rfkill_register(bt_rfkill);
929 if (ret)
930 goto err_register_bt;
931
932 return 0;
933
934err_register_bt:
935 rfkill_destroy(bt_rfkill);
936
937err_allocate_bt:
938 rfkill_unregister(wifi_rfkill);
939
940err_wifi:
941 rfkill_destroy(wifi_rfkill);
942
943 return ret;
944}
945
5411552c
CJ		 946static int __init compal_init(void)
947{
948 int ret;
949
9be0fcb5 950 if (acpi_disabled) {
b4a4bc0b 951 pr_err("ACPI needs to be enabled for this driver to work!\n");
5411552c 952 return -ENODEV;
9be0fcb5 953 }
5411552c 954
9be0fcb5 955 if (!force && !dmi_check_system(compal_dmi_table)) {
b4a4bc0b 956 pr_err("Motherboard not recognized (You could try the module's force-parameter)\n");
5411552c 957 return -ENODEV;
9be0fcb5 958 }
5411552c 959
29454f17 960 if (!acpi_video_backlight_support()) {
a19a6ee6
MG		 961 struct backlight_properties props;
962 memset(&props, 0, sizeof(struct backlight_properties));
bb7ca747 963 props.type = BACKLIGHT_PLATFORM;
9be0fcb5
RF		 964 props.max_brightness = BACKLIGHT_LEVEL_MAX;
965 compalbl_device = backlight_device_register(DRIVER_NAME,
a19a6ee6
MG		 966 NULL, NULL,
967 &compalbl_ops,
968 &props);
29454f17
TR		 969 if (IS_ERR(compalbl_device))
970 return PTR_ERR(compalbl_device);
29454f17 971 }
5411552c
CJ		 972
973 ret = platform_driver_register(&compal_driver);
974 if (ret)
9be0fcb5 975 goto err_backlight;
5411552c 976
9be0fcb5 977 compal_device = platform_device_alloc(DRIVER_NAME, -1);
5411552c
CJ		 978 if (!compal_device) {
979 ret = -ENOMEM;
9be0fcb5 980 goto err_platform_driver;
5411552c
CJ		 981 }
982
9be0fcb5 983 ret = platform_device_add(compal_device); /* This calls compal_probe */
5411552c 984 if (ret)
9be0fcb5 985 goto err_platform_device;
5411552c 986
493e9143 987 ret = setup_rfkill();
5411552c 988 if (ret)
9be0fcb5 989 goto err_rfkill;
5411552c 990
b4a4bc0b 991 pr_info("Driver " DRIVER_VERSION " successfully loaded\n");
5411552c
CJ		 992 return 0;
993
9be0fcb5 994err_rfkill:
5411552c
CJ		 995 platform_device_del(compal_device);
996
9be0fcb5 997err_platform_device:
5411552c
CJ		 998 platform_device_put(compal_device);
999
9be0fcb5 1000err_platform_driver:
5411552c
CJ		 1001 platform_driver_unregister(&compal_driver);
1002
9be0fcb5 1003err_backlight:
5411552c
CJ		 1004 backlight_device_unregister(compalbl_device);
1005
1006 return ret;
1007}
1008
b859f159 1009static int compal_probe(struct platform_device *pdev)
5411552c 1010{
9be0fcb5
RF		 1011 int err;
1012 struct compal_data *data;
c2be45f0 1013 struct device *hwmon_dev;
9be0fcb5
RF		 1014
1015 if (!extra_features)
1016 return 0;
1017
1018 /* Fan control */
cf508f44 1019 data = devm_kzalloc(&pdev->dev, sizeof(struct compal_data), GFP_KERNEL);
9be0fcb5
RF		 1020 if (!data)
1021 return -ENOMEM;
1022
1023 initialize_fan_control_data(data);
1024
c2be45f0 1025 err = sysfs_create_group(&pdev->dev.kobj, &compal_platform_attr_group);
cf508f44 1026 if (err)
9be0fcb5
RF		 1027 return err;
1028
ad774702
KK		 1029 hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
1030 "compal", data,
1031 compal_hwmon_groups);
c2be45f0
GR		 1032 if (IS_ERR(hwmon_dev)) {
1033 err = PTR_ERR(hwmon_dev);
1034 goto remove;
9be0fcb5
RF		 1035 }
1036
1037 /* Power supply */
1038 initialize_power_supply_data(data);
2dc9215d 1039 err = power_supply_register(&compal_device->dev, &data->psy, NULL);
1915a718
KK		 1040 if (err < 0)
1041 goto remove;
9be0fcb5
RF		 1042
1043 platform_set_drvdata(pdev, data);
1044
1045 return 0;
c2be45f0
GR		 1046
1047remove:
1048 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1049 return err;
9be0fcb5 1050}
5411552c 1051
9be0fcb5
RF		 1052static void __exit compal_cleanup(void)
1053{
5411552c
CJ		 1054 platform_device_unregister(compal_device);
1055 platform_driver_unregister(&compal_driver);
1056 backlight_device_unregister(compalbl_device);
493e9143 1057 rfkill_unregister(wifi_rfkill);
493e9143 1058 rfkill_unregister(bt_rfkill);
9be0fcb5 1059 rfkill_destroy(wifi_rfkill);
493e9143 1060 rfkill_destroy(bt_rfkill);
5411552c 1061
b4a4bc0b 1062 pr_info("Driver unloaded\n");
5411552c
CJ		 1063}
1064
b859f159 1065static int compal_remove(struct platform_device *pdev)
9be0fcb5
RF		 1066{
1067 struct compal_data *data;
1068
1069 if (!extra_features)
1070 return 0;
1071
b4a4bc0b 1072 pr_info("Unloading: resetting fan control to motherboard\n");
9be0fcb5
RF		 1073 pwm_disable_control();
1074
1075 data = platform_get_drvdata(pdev);
9be0fcb5
RF		 1076 power_supply_unregister(&data->psy);
1077
c2be45f0 1078 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
9be0fcb5
RF		 1079
1080 return 0;
1081}
1082
1083
5411552c
CJ		 1084module_init(compal_init);
1085module_exit(compal_cleanup);
1086
1087MODULE_AUTHOR("Cezary Jackiewicz");
9be0fcb5 1088MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
5411552c 1089MODULE_DESCRIPTION("Compal Laptop Support");
9be0fcb5 1090MODULE_VERSION(DRIVER_VERSION);
5411552c 1091MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)