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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
72
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>
80#include <linux/rfkill.h>
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 */
176 struct device *hwmon_dev;
177 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by moterboard */
178 unsigned char curr_pwm;
179
180 /* Power supply */
181 struct power_supply psy;
182 struct power_supply_info psy_info;
183 char bat_model_name[BAT_MODEL_NAME_LEN + 1];
184 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
185 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1];
186};
187
188
189/* =============== */
190/* General globals */
191/* =============== */
192static int force;
193module_param(force, bool, 0);
194MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
195
196/* Support for the wake_on_XXX, hwmon and power_supply interface. Currently
197 * only gets enabled on a JHL90 board. Might work with the others too */
198static bool extra_features;
199
200/* Nasty stuff. For some reason the fan control is very un-linear. I've
201 * come up with these values by looping through the possible inputs and
202 * watching the output of address 0x4F (do an ec_transaction writing 0x33
203 * into 0x4F and read a few bytes from the output, like so:
204 * u8 writeData = 0x33;
205 * ec_transaction(0x4F, &writeData, 1, buffer, 32);
206 * That address is labeled "fan1 table information" in the service manual.
207 * It should be clear which value in 'buffer' changes). This seems to be
208 * related to fan speed. It isn't a proper 'realtime' fan speed value
209 * though, because physically stopping or speeding up the fan doesn't
210 * change it. It might be the average voltage or current of the pwm output.
211 * Nevertheless, it is more fine-grained than the actual RPM reading */
212static const unsigned char pwm_lookup_table[256] = {
213 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6,
214 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95,
215 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70,
216 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94,
217 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139,
218 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76,
219 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22,
220 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219,
221 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186,
222 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33,
223 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38,
224 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46,
225 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48,
226 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44,
227 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251,
228 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187,
229 187, 187, 193, 50
230};
231
232
233
234
235/* ========================= */
236/* Hardware access functions */
237/* ========================= */
238/* General access */
239static u8 ec_read_u8(u8 addr)
240{
241 u8 value;
242 ec_read(addr, &value);
243 return value;
244}
245
246static s8 ec_read_s8(u8 addr)
247{
248 return (s8)ec_read_u8(addr);
249}
250
251static u16 ec_read_u16(u8 addr)
252{
253 int hi, lo;
254 lo = ec_read_u8(addr);
255 hi = ec_read_u8(addr + 1);
256 return (hi << 8) + lo;
257}
258
259static s16 ec_read_s16(u8 addr)
260{
261 return (s16) ec_read_u16(addr);
262}
263
264static void ec_read_sequence(u8 addr, u8 *buf, int len)
265{
266 int i;
267 for (i = 0; i < len; i++)
268 ec_read(addr + i, buf + i);
269}
270
271
272/* Backlight access */
273static int set_backlight_level(int level)
274{
275 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
276 return -EINVAL;
277
278 ec_write(BACKLIGHT_LEVEL_ADDR, level);
279
280 return 0;
281}
282
283static int get_backlight_level(void)
284{
285 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR);
286}
287
288static void set_backlight_state(bool on)
289{
290 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA;
291 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0);
292}
293
294
295/* Fan control access */
296static void pwm_enable_control(void)
297{
298 unsigned char writeData = PWM_ENABLE_DATA;
299 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0);
300}
301
302static void pwm_disable_control(void)
303{
304 unsigned char writeData = PWM_DISABLE_DATA;
305 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0);
306}
307
308static void set_pwm(int pwm)
309{
310 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0);
311}
312
313static int get_fan_rpm(void)
314{
315 u8 value, data = FAN_DATA;
316 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1);
317 return 100 * (int)value;
318}
319
320
321
322
323/* =================== */
324/* Interface functions */
325/* =================== */
326
327/* Backlight interface */
328static int bl_get_brightness(struct backlight_device *b)
329{
330 return get_backlight_level();
331}
332
333static int bl_update_status(struct backlight_device *b)
334{
335 int ret = set_backlight_level(b->props.brightness);
336 if (ret)
337 return ret;
338
339 set_backlight_state((b->props.power == FB_BLANK_UNBLANK)
340 && !(b->props.state & BL_CORE_SUSPENDED)
341 && !(b->props.state & BL_CORE_FBBLANK));
342 return 0;
343}
344
345static const struct backlight_ops compalbl_ops = {
346 .get_brightness = bl_get_brightness,
347 .update_status = bl_update_status,
348};
349
350
351/* Wireless interface */
352static int compal_rfkill_set(void *data, bool blocked)
353{
354 unsigned long radio = (unsigned long) data;
355 u8 result = ec_read_u8(WIRELESS_ADDR);
356 u8 value;
357
358 if (!blocked)
359 value = (u8) (result | radio);
360 else
361 value = (u8) (result & ~radio);
362 ec_write(WIRELESS_ADDR, value);
363
364 return 0;
365}
366
367static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
368{
369 u8 result = ec_read_u8(WIRELESS_ADDR);
370 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
371 rfkill_set_hw_state(rfkill, hw_blocked);
372}
373
374static const struct rfkill_ops compal_rfkill_ops = {
375 .poll = compal_rfkill_poll,
376 .set_block = compal_rfkill_set,
377};
378
379
380/* Wake_up interface */
381#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \
382static ssize_t NAME##_show(struct device *dev, \
383 struct device_attribute *attr, char *buf) \
384{ \
385 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \
386} \
387static ssize_t NAME##_store(struct device *dev, \
388 struct device_attribute *attr, const char *buf, size_t count) \
389{ \
390 int state; \
391 u8 old_val = ec_read_u8(ADDR); \
392 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \
393 return -EINVAL; \
394 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \
395 return count; \
396}
397
398SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME)
399SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM)
400SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN)
401SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN)
402SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY)
403SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE)
404
405
406/* General hwmon interface */
407static ssize_t hwmon_name_show(struct device *dev,
408 struct device_attribute *attr, char *buf)
409{
410 return sprintf(buf, "%s\n", DRIVER_NAME);
411}
412
413
414/* Fan control interface */
415static ssize_t pwm_enable_show(struct device *dev,
416 struct device_attribute *attr, char *buf)
417{
418 struct compal_data *data = dev_get_drvdata(dev);
419 return sprintf(buf, "%d\n", data->pwm_enable);
420}
421
422static ssize_t pwm_enable_store(struct device *dev,
423 struct device_attribute *attr, const char *buf, size_t count)
424{
425 struct compal_data *data = dev_get_drvdata(dev);
426 long val;
427 int err;
428 err = strict_strtol(buf, 10, &val);
429 if (err)
430 return err;
431 if (val < 0)
432 return -EINVAL;
433
434 data->pwm_enable = val;
435
436 switch (val) {
437 case 0: /* Full speed */
438 pwm_enable_control();
439 set_pwm(255);
440 break;
441 case 1: /* As set by pwm1 */
442 pwm_enable_control();
443 set_pwm(data->curr_pwm);
444 break;
445 default: /* Control by motherboard */
446 pwm_disable_control();
447 break;
448 }
449
450 return count;
451}
452
453static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
454 char *buf)
455{
456 struct compal_data *data = dev_get_drvdata(dev);
457 return sprintf(buf, "%hhu\n", data->curr_pwm);
458}
459
460static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
461 const char *buf, size_t count)
462{
463 struct compal_data *data = dev_get_drvdata(dev);
464 long val;
465 int err;
466 err = strict_strtol(buf, 10, &val);
467 if (err)
468 return err;
469 if (val < 0 || val > 255)
470 return -EINVAL;
471
472 data->curr_pwm = val;
473
474 if (data->pwm_enable != 1)
475 return count;
476 set_pwm(val);
477
478 return count;
479}
480
481static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
482 char *buf)
483{
484 return sprintf(buf, "%d\n", get_fan_rpm());
485}
486
487
488/* Temperature interface */
489#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \
490static ssize_t temp_##POSTFIX(struct device *dev, \
491 struct device_attribute *attr, char *buf) \
492{ \
493 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \
494} \
495static ssize_t label_##POSTFIX(struct device *dev, \
496 struct device_attribute *attr, char *buf) \
497{ \
498 return sprintf(buf, "%s\n", LABEL); \
499}
500
501/* Labels as in service guide */
502TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP");
503TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL");
504TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS");
505TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge");
506TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP");
507TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90");
508
509
510/* Power supply interface */
511static int bat_status(void)
512{
513 u8 status0 = ec_read_u8(BAT_STATUS0);
514 u8 status1 = ec_read_u8(BAT_STATUS1);
515
516 if (status0 & BAT_S0_CHARGING)
517 return POWER_SUPPLY_STATUS_CHARGING;
518 if (status0 & BAT_S0_DISCHARGE)
519 return POWER_SUPPLY_STATUS_DISCHARGING;
520 if (status1 & BAT_S1_FULL)
521 return POWER_SUPPLY_STATUS_FULL;
522 return POWER_SUPPLY_STATUS_NOT_CHARGING;
523}
524
525static int bat_health(void)
526{
527 u8 status = ec_read_u8(BAT_STOP_CHARGE1);
528
529 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE)
530 return POWER_SUPPLY_HEALTH_OVERHEAT;
531 if (status & BAT_STOP_CHRG1_OVERVOLTAGE)
532 return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
533 if (status & BAT_STOP_CHRG1_BAD_CELL)
534 return POWER_SUPPLY_HEALTH_DEAD;
535 if (status & BAT_STOP_CHRG1_COMM_FAIL)
536 return POWER_SUPPLY_HEALTH_UNKNOWN;
537 return POWER_SUPPLY_HEALTH_GOOD;
538}
539
540static int bat_is_present(void)
541{
542 u8 status = ec_read_u8(BAT_STATUS2);
543 return ((status & BAT_S1_EXISTS) != 0);
544}
545
546static int bat_technology(void)
547{
548 u8 status = ec_read_u8(BAT_STATUS1);
549
550 if (status & BAT_S1_LiION_OR_NiMH)
551 return POWER_SUPPLY_TECHNOLOGY_LION;
552 return POWER_SUPPLY_TECHNOLOGY_NiMH;
553}
554
555static int bat_capacity_level(void)
556{
557 u8 status0 = ec_read_u8(BAT_STATUS0);
558 u8 status1 = ec_read_u8(BAT_STATUS1);
559 u8 status2 = ec_read_u8(BAT_STATUS2);
560
561 if (status0 & BAT_S0_DISCHRG_CRITICAL
562 || status1 & BAT_S1_EMPTY
563 || status2 & BAT_S2_LOW_LOW)
564 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
565 if (status0 & BAT_S0_LOW)
566 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
567 if (status1 & BAT_S1_FULL)
568 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
569 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
570}
571
572static int bat_get_property(struct power_supply *psy,
573 enum power_supply_property psp,
574 union power_supply_propval *val)
575{
576 struct compal_data *data;
577 data = container_of(psy, struct compal_data, psy);
578
579 switch (psp) {
580 case POWER_SUPPLY_PROP_STATUS:
581 val->intval = bat_status();
582 break;
583 case POWER_SUPPLY_PROP_HEALTH:
584 val->intval = bat_health();
585 break;
586 case POWER_SUPPLY_PROP_PRESENT:
587 val->intval = bat_is_present();
588 break;
589 case POWER_SUPPLY_PROP_TECHNOLOGY:
590 val->intval = bat_technology();
591 break;
592 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
593 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
594 break;
595 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
596 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
597 break;
598 case POWER_SUPPLY_PROP_CURRENT_NOW:
599 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
600 break;
601 case POWER_SUPPLY_PROP_CURRENT_AVG:
602 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
603 break;
604 case POWER_SUPPLY_PROP_POWER_NOW:
605 val->intval = ec_read_u8(BAT_POWER) * 1000000;
606 break;
607 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
608 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
609 break;
610 case POWER_SUPPLY_PROP_CHARGE_NOW:
611 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
612 break;
613 case POWER_SUPPLY_PROP_CAPACITY:
614 val->intval = ec_read_u8(BAT_CAPACITY);
615 break;
616 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
617 val->intval = bat_capacity_level();
618 break;
619 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
620 * the number of degrees, whereas BAT_TEMP is somewhat more
621 * complicated. It looks like this is a negative nember with a
622 * 100/256 divider and an offset of 222. Both were determined
623 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
624 case POWER_SUPPLY_PROP_TEMP:
625 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
626 break;
627 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
628 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
629 break;
630 /* Neither the model name nor manufacturer name work for me. */
631 case POWER_SUPPLY_PROP_MODEL_NAME:
632 val->strval = data->bat_model_name;
633 break;
634 case POWER_SUPPLY_PROP_MANUFACTURER:
635 val->strval = data->bat_manufacturer_name;
636 break;
637 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
638 val->strval = data->bat_serial_number;
639 break;
640 default:
641 break;
642 }
643 return 0;
644}
645
646
647
648
649
650/* ============== */
651/* Driver Globals */
652/* ============== */
653static DEVICE_ATTR(wake_up_pme,
654 0644, wake_up_pme_show, wake_up_pme_store);
655static DEVICE_ATTR(wake_up_modem,
656 0644, wake_up_modem_show, wake_up_modem_store);
657static DEVICE_ATTR(wake_up_lan,
658 0644, wake_up_lan_show, wake_up_lan_store);
659static DEVICE_ATTR(wake_up_wlan,
660 0644, wake_up_wlan_show, wake_up_wlan_store);
661static DEVICE_ATTR(wake_up_key,
662 0644, wake_up_key_show, wake_up_key_store);
663static DEVICE_ATTR(wake_up_mouse,
664 0644, wake_up_mouse_show, wake_up_mouse_store);
665
666static SENSOR_DEVICE_ATTR(name, S_IRUGO, hwmon_name_show, NULL, 1);
667static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL, 1);
668static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL, 1);
669static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL, 1);
670static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL, 1);
671static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL, 1);
672static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL, 1);
673static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL, 1);
674static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL, 1);
675static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL, 1);
676static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL, 1);
677static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL, 1);
678static SENSOR_DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL, 1);
679static SENSOR_DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL, 1);
680static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store, 1);
681static SENSOR_DEVICE_ATTR(pwm1_enable,
682 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store, 0);
683
684static struct attribute *compal_attributes[] = {
685 &dev_attr_wake_up_pme.attr,
686 &dev_attr_wake_up_modem.attr,
687 &dev_attr_wake_up_lan.attr,
688 &dev_attr_wake_up_wlan.attr,
689 &dev_attr_wake_up_key.attr,
690 &dev_attr_wake_up_mouse.attr,
691 /* Maybe put the sensor-stuff in a separate hwmon-driver? That way,
692 * the hwmon sysfs won't be cluttered with the above files. */
693 &sensor_dev_attr_name.dev_attr.attr,
694 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
695 &sensor_dev_attr_pwm1.dev_attr.attr,
696 &sensor_dev_attr_fan1_input.dev_attr.attr,
697 &sensor_dev_attr_temp1_input.dev_attr.attr,
698 &sensor_dev_attr_temp2_input.dev_attr.attr,
699 &sensor_dev_attr_temp3_input.dev_attr.attr,
700 &sensor_dev_attr_temp4_input.dev_attr.attr,
701 &sensor_dev_attr_temp5_input.dev_attr.attr,
702 &sensor_dev_attr_temp6_input.dev_attr.attr,
703 &sensor_dev_attr_temp1_label.dev_attr.attr,
704 &sensor_dev_attr_temp2_label.dev_attr.attr,
705 &sensor_dev_attr_temp3_label.dev_attr.attr,
706 &sensor_dev_attr_temp4_label.dev_attr.attr,
707 &sensor_dev_attr_temp5_label.dev_attr.attr,
708 &sensor_dev_attr_temp6_label.dev_attr.attr,
709 NULL
710};
711
712static struct attribute_group compal_attribute_group = {
713 .attrs = compal_attributes
714};
715
716static int __devinit compal_probe(struct platform_device *);
717static int __devexit compal_remove(struct platform_device *);
718static struct platform_driver compal_driver = {
719 .driver = {
720 .name = DRIVER_NAME,
721 .owner = THIS_MODULE,
722 },
723 .probe = compal_probe,
724 .remove = __devexit_p(compal_remove)
725};
726
727static enum power_supply_property compal_bat_properties[] = {
728 POWER_SUPPLY_PROP_STATUS,
729 POWER_SUPPLY_PROP_HEALTH,
730 POWER_SUPPLY_PROP_PRESENT,
731 POWER_SUPPLY_PROP_TECHNOLOGY,
732 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
733 POWER_SUPPLY_PROP_VOLTAGE_NOW,
734 POWER_SUPPLY_PROP_CURRENT_NOW,
735 POWER_SUPPLY_PROP_CURRENT_AVG,
736 POWER_SUPPLY_PROP_POWER_NOW,
737 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
738 POWER_SUPPLY_PROP_CHARGE_NOW,
739 POWER_SUPPLY_PROP_CAPACITY,
740 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
741 POWER_SUPPLY_PROP_TEMP,
742 POWER_SUPPLY_PROP_TEMP_AMBIENT,
743 POWER_SUPPLY_PROP_MODEL_NAME,
744 POWER_SUPPLY_PROP_MANUFACTURER,
745 POWER_SUPPLY_PROP_SERIAL_NUMBER,
746};
747
748static struct backlight_device *compalbl_device;
749
750static struct platform_device *compal_device;
751
752static struct rfkill *wifi_rfkill;
753static struct rfkill *bt_rfkill;
754
755
756
757
758
759/* =================================== */
760/* Initialization & clean-up functions */
761/* =================================== */
762
763static int dmi_check_cb(const struct dmi_system_id *id)
764{
765 pr_info("Identified laptop model '%s'\n", id->ident);
766 extra_features = false;
767 return 1;
768}
769
770static int dmi_check_cb_extra(const struct dmi_system_id *id)
771{
772 pr_info("Identified laptop model '%s', enabling extra features\n",
773 id->ident);
774 extra_features = true;
775 return 1;
776}
777
778static 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
886static 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
908static 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
915static 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
942err_register_bt:
943 rfkill_destroy(bt_rfkill);
944
945err_allocate_bt:
946 rfkill_unregister(wifi_rfkill);
947
948err_wifi:
949 rfkill_destroy(wifi_rfkill);
950
951 return ret;
952}
953
954static int __init compal_init(void)
955{
956 int ret;
957
958 if (acpi_disabled) {
959 pr_err("ACPI needs to be enabled for this driver to work!\n");
960 return -ENODEV;
961 }
962
963 if (!force && !dmi_check_system(compal_dmi_table)) {
964 pr_err("Motherboard not recognized (You could try the module's force-parameter)\n");
965 return -ENODEV;
966 }
967
968 if (!acpi_video_backlight_support()) {
969 struct backlight_properties props;
970 memset(&props, 0, sizeof(struct backlight_properties));
971 props.type = BACKLIGHT_PLATFORM;
972 props.max_brightness = BACKLIGHT_LEVEL_MAX;
973 compalbl_device = backlight_device_register(DRIVER_NAME,
974 NULL, NULL,
975 &compalbl_ops,
976 &props);
977 if (IS_ERR(compalbl_device))
978 return PTR_ERR(compalbl_device);
979 }
980
981 ret = platform_driver_register(&compal_driver);
982 if (ret)
983 goto err_backlight;
984
985 compal_device = platform_device_alloc(DRIVER_NAME, -1);
986 if (!compal_device) {
987 ret = -ENOMEM;
988 goto err_platform_driver;
989 }
990
991 ret = platform_device_add(compal_device); /* This calls compal_probe */
992 if (ret)
993 goto err_platform_device;
994
995 ret = setup_rfkill();
996 if (ret)
997 goto err_rfkill;
998
999 pr_info("Driver " DRIVER_VERSION " successfully loaded\n");
1000 return 0;
1001
1002err_rfkill:
1003 platform_device_del(compal_device);
1004
1005err_platform_device:
1006 platform_device_put(compal_device);
1007
1008err_platform_driver:
1009 platform_driver_unregister(&compal_driver);
1010
1011err_backlight:
1012 backlight_device_unregister(compalbl_device);
1013
1014 return ret;
1015}
1016
1017static int __devinit compal_probe(struct platform_device *pdev)
1018{
1019 int err;
1020 struct compal_data *data;
1021
1022 if (!extra_features)
1023 return 0;
1024
1025 /* Fan control */
1026 data = kzalloc(sizeof(struct compal_data), GFP_KERNEL);
1027 if (!data)
1028 return -ENOMEM;
1029
1030 initialize_fan_control_data(data);
1031
1032 err = sysfs_create_group(&pdev->dev.kobj, &compal_attribute_group);
1033 if (err) {
1034 kfree(data);
1035 return err;
1036 }
1037
1038 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1039 if (IS_ERR(data->hwmon_dev)) {
1040 err = PTR_ERR(data->hwmon_dev);
1041 sysfs_remove_group(&pdev->dev.kobj,
1042 &compal_attribute_group);
1043 kfree(data);
1044 return err;
1045 }
1046
1047 /* Power supply */
1048 initialize_power_supply_data(data);
1049 power_supply_register(&compal_device->dev, &data->psy);
1050
1051 platform_set_drvdata(pdev, data);
1052
1053 return 0;
1054}
1055
1056static void __exit compal_cleanup(void)
1057{
1058 platform_device_unregister(compal_device);
1059 platform_driver_unregister(&compal_driver);
1060 backlight_device_unregister(compalbl_device);
1061 rfkill_unregister(wifi_rfkill);
1062 rfkill_unregister(bt_rfkill);
1063 rfkill_destroy(wifi_rfkill);
1064 rfkill_destroy(bt_rfkill);
1065
1066 pr_info("Driver unloaded\n");
1067}
1068
1069static int __devexit compal_remove(struct platform_device *pdev)
1070{
1071 struct compal_data *data;
1072
1073 if (!extra_features)
1074 return 0;
1075
1076 pr_info("Unloading: resetting fan control to motherboard\n");
1077 pwm_disable_control();
1078
1079 data = platform_get_drvdata(pdev);
1080 hwmon_device_unregister(data->hwmon_dev);
1081 power_supply_unregister(&data->psy);
1082
1083 platform_set_drvdata(pdev, NULL);
1084 kfree(data);
1085
1086 sysfs_remove_group(&pdev->dev.kobj, &compal_attribute_group);
1087
1088 return 0;
1089}
1090
1091
1092module_init(compal_init);
1093module_exit(compal_cleanup);
1094
1095MODULE_AUTHOR("Cezary Jackiewicz");
1096MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
1097MODULE_DESCRIPTION("Compal Laptop Support");
1098MODULE_VERSION(DRIVER_VERSION);
1099MODULE_LICENSE("GPL");
1100
1101MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*");
1102MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*");
1103MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*");
1104MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*");
1105MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*");
1106MODULE_ALIAS("dmi:*:rnJHL90:rvrREFERENCE:*");
1107MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*");
1108MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*");
1109MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*");
1110MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1012:*");
1111MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1110:*");
1112MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1210:*");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*-*-linux-c-*-*/
3
4/*
5 Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com>
6
7 based on MSI driver
8
9 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
10
11 */
12
13/*
14 * compal-laptop.c - Compal laptop support.
15 *
16 * This driver exports a few files in /sys/devices/platform/compal-laptop/:
17 * wake_up_XXX Whether or not we listen to such wake up events (rw)
18 *
19 * In addition to these platform device attributes the driver
20 * registers itself in the Linux backlight control, power_supply, rfkill
21 * and hwmon subsystem and is available to userspace under:
22 *
23 * /sys/class/backlight/compal-laptop/
24 * /sys/class/power_supply/compal-laptop/
25 * /sys/class/rfkill/rfkillX/
26 * /sys/class/hwmon/hwmonX/
27 *
28 * Notes on the power_supply battery interface:
29 * - the "minimum" design voltage is *the* design voltage
30 * - the ambient temperature is the average battery temperature
31 * and the value is an educated guess (see commented code below)
32 *
33 *
34 * This driver might work on other laptops produced by Compal. If you
35 * want to try it you can pass force=1 as argument to the module which
36 * will force it to load even when the DMI data doesn't identify the
37 * laptop as compatible.
38 *
39 * Lots of data available at:
40 * http://service1.marasst.com/Compal/JHL90_91/Service%20Manual/
41 * JHL90%20service%20manual-Final-0725.pdf
42 *
43 *
44 *
45 * Support for the Compal JHL90 added by Roald Frederickx
46 * (roald.frederickx@gmail.com):
47 * Driver got large revision. Added functionalities: backlight
48 * power, wake_on_XXX, a hwmon and power_supply interface.
49 *
50 * In case this gets merged into the kernel source: I want to dedicate this
51 * to Kasper Meerts, the awesome guy who showed me Linux and C!
52 */
53
54/* NOTE: currently the wake_on_XXX, hwmon and power_supply interfaces are
55 * only enabled on a JHL90 board until it is verified that they work on the
56 * other boards too. See the extra_features variable. */
57
58#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
59
60#include <linux/module.h>
61#include <linux/kernel.h>
62#include <linux/init.h>
63#include <linux/acpi.h>
64#include <linux/dmi.h>
65#include <linux/backlight.h>
66#include <linux/platform_device.h>
67#include <linux/rfkill.h>
68#include <linux/hwmon.h>
69#include <linux/hwmon-sysfs.h>
70#include <linux/power_supply.h>
71#include <linux/fb.h>
72#include <acpi/video.h>
73
74/* ======= */
75/* Defines */
76/* ======= */
77#define DRIVER_NAME "compal-laptop"
78#define DRIVER_VERSION "0.2.7"
79
80#define BACKLIGHT_LEVEL_ADDR 0xB9
81#define BACKLIGHT_LEVEL_MAX 7
82#define BACKLIGHT_STATE_ADDR 0x59
83#define BACKLIGHT_STATE_ON_DATA 0xE1
84#define BACKLIGHT_STATE_OFF_DATA 0xE2
85
86#define WAKE_UP_ADDR 0xA4
87#define WAKE_UP_PME (1 << 0)
88#define WAKE_UP_MODEM (1 << 1)
89#define WAKE_UP_LAN (1 << 2)
90#define WAKE_UP_WLAN (1 << 4)
91#define WAKE_UP_KEY (1 << 6)
92#define WAKE_UP_MOUSE (1 << 7)
93
94#define WIRELESS_ADDR 0xBB
95#define WIRELESS_WLAN (1 << 0)
96#define WIRELESS_BT (1 << 1)
97#define WIRELESS_WLAN_EXISTS (1 << 2)
98#define WIRELESS_BT_EXISTS (1 << 3)
99#define WIRELESS_KILLSWITCH (1 << 4)
100
101#define PWM_ADDRESS 0x46
102#define PWM_DISABLE_ADDR 0x59
103#define PWM_DISABLE_DATA 0xA5
104#define PWM_ENABLE_ADDR 0x59
105#define PWM_ENABLE_DATA 0xA8
106
107#define FAN_ADDRESS 0x46
108#define FAN_DATA 0x81
109#define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */
110#define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */
111#define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */
112
113#define TEMP_CPU 0xB0
114#define TEMP_CPU_LOCAL 0xB1
115#define TEMP_CPU_DTS 0xB5
116#define TEMP_NORTHBRIDGE 0xB6
117#define TEMP_VGA 0xB4
118#define TEMP_SKIN 0xB2
119
120#define BAT_MANUFACTURER_NAME_ADDR 0x10
121#define BAT_MANUFACTURER_NAME_LEN 9
122#define BAT_MODEL_NAME_ADDR 0x19
123#define BAT_MODEL_NAME_LEN 6
124#define BAT_SERIAL_NUMBER_ADDR 0xC4
125#define BAT_SERIAL_NUMBER_LEN 5
126#define BAT_CHARGE_NOW 0xC2
127#define BAT_CHARGE_DESIGN 0xCA
128#define BAT_VOLTAGE_NOW 0xC6
129#define BAT_VOLTAGE_DESIGN 0xC8
130#define BAT_CURRENT_NOW 0xD0
131#define BAT_CURRENT_AVG 0xD2
132#define BAT_POWER 0xD4
133#define BAT_CAPACITY 0xCE
134#define BAT_TEMP 0xD6
135#define BAT_TEMP_AVG 0xD7
136#define BAT_STATUS0 0xC1
137#define BAT_STATUS1 0xF0
138#define BAT_STATUS2 0xF1
139#define BAT_STOP_CHARGE1 0xF2
140#define BAT_STOP_CHARGE2 0xF3
141#define BAT_CHARGE_LIMIT 0x03
142#define BAT_CHARGE_LIMIT_MAX 100
143
144#define BAT_S0_DISCHARGE (1 << 0)
145#define BAT_S0_DISCHRG_CRITICAL (1 << 2)
146#define BAT_S0_LOW (1 << 3)
147#define BAT_S0_CHARGING (1 << 1)
148#define BAT_S0_AC (1 << 7)
149#define BAT_S1_EXISTS (1 << 0)
150#define BAT_S1_FULL (1 << 1)
151#define BAT_S1_EMPTY (1 << 2)
152#define BAT_S1_LiION_OR_NiMH (1 << 7)
153#define BAT_S2_LOW_LOW (1 << 0)
154#define BAT_STOP_CHRG1_BAD_CELL (1 << 1)
155#define BAT_STOP_CHRG1_COMM_FAIL (1 << 2)
156#define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6)
157#define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7)
158
159
160/* ======= */
161/* Structs */
162/* ======= */
163struct compal_data{
164 /* Fan control */
165 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by motherboard */
166 unsigned char curr_pwm;
167
168 /* Power supply */
169 struct power_supply *psy;
170 struct power_supply_info psy_info;
171 char bat_model_name[BAT_MODEL_NAME_LEN + 1];
172 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
173 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1];
174};
175
176
177/* =============== */
178/* General globals */
179/* =============== */
180static bool force;
181module_param(force, bool, 0);
182MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
183
184/* Support for the wake_on_XXX, hwmon and power_supply interface. Currently
185 * only gets enabled on a JHL90 board. Might work with the others too */
186static bool extra_features;
187
188/* Nasty stuff. For some reason the fan control is very un-linear. I've
189 * come up with these values by looping through the possible inputs and
190 * watching the output of address 0x4F (do an ec_transaction writing 0x33
191 * into 0x4F and read a few bytes from the output, like so:
192 * u8 writeData = 0x33;
193 * ec_transaction(0x4F, &writeData, 1, buffer, 32);
194 * That address is labeled "fan1 table information" in the service manual.
195 * It should be clear which value in 'buffer' changes). This seems to be
196 * related to fan speed. It isn't a proper 'realtime' fan speed value
197 * though, because physically stopping or speeding up the fan doesn't
198 * change it. It might be the average voltage or current of the pwm output.
199 * Nevertheless, it is more fine-grained than the actual RPM reading */
200static const unsigned char pwm_lookup_table[256] = {
201 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6,
202 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95,
203 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70,
204 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94,
205 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139,
206 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76,
207 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22,
208 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219,
209 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186,
210 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33,
211 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38,
212 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46,
213 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48,
214 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44,
215 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251,
216 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187,
217 187, 187, 193, 50
218};
219
220
221
222
223/* ========================= */
224/* Hardware access functions */
225/* ========================= */
226/* General access */
227static u8 ec_read_u8(u8 addr)
228{
229 u8 value = 0;
230 ec_read(addr, &value);
231 return value;
232}
233
234static s8 ec_read_s8(u8 addr)
235{
236 return (s8)ec_read_u8(addr);
237}
238
239static u16 ec_read_u16(u8 addr)
240{
241 int hi, lo;
242 lo = ec_read_u8(addr);
243 hi = ec_read_u8(addr + 1);
244 return (hi << 8) + lo;
245}
246
247static s16 ec_read_s16(u8 addr)
248{
249 return (s16) ec_read_u16(addr);
250}
251
252static void ec_read_sequence(u8 addr, u8 *buf, int len)
253{
254 int i;
255 for (i = 0; i < len; i++)
256 ec_read(addr + i, buf + i);
257}
258
259
260/* Backlight access */
261static int set_backlight_level(int level)
262{
263 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
264 return -EINVAL;
265
266 ec_write(BACKLIGHT_LEVEL_ADDR, level);
267
268 return 0;
269}
270
271static int get_backlight_level(void)
272{
273 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR);
274}
275
276static void set_backlight_state(bool on)
277{
278 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA;
279 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0);
280}
281
282
283/* Fan control access */
284static void pwm_enable_control(void)
285{
286 unsigned char writeData = PWM_ENABLE_DATA;
287 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0);
288}
289
290static void pwm_disable_control(void)
291{
292 unsigned char writeData = PWM_DISABLE_DATA;
293 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0);
294}
295
296static void set_pwm(int pwm)
297{
298 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0);
299}
300
301static int get_fan_rpm(void)
302{
303 u8 value, data = FAN_DATA;
304 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1);
305 return 100 * (int)value;
306}
307
308
309
310
311/* =================== */
312/* Interface functions */
313/* =================== */
314
315/* Backlight interface */
316static int bl_get_brightness(struct backlight_device *b)
317{
318 return get_backlight_level();
319}
320
321static int bl_update_status(struct backlight_device *b)
322{
323 int ret = set_backlight_level(b->props.brightness);
324 if (ret)
325 return ret;
326
327 set_backlight_state(!backlight_is_blank(b));
328 return 0;
329}
330
331static const struct backlight_ops compalbl_ops = {
332 .get_brightness = bl_get_brightness,
333 .update_status = bl_update_status,
334};
335
336
337/* Wireless interface */
338static int compal_rfkill_set(void *data, bool blocked)
339{
340 unsigned long radio = (unsigned long) data;
341 u8 result = ec_read_u8(WIRELESS_ADDR);
342 u8 value;
343
344 if (!blocked)
345 value = (u8) (result | radio);
346 else
347 value = (u8) (result & ~radio);
348 ec_write(WIRELESS_ADDR, value);
349
350 return 0;
351}
352
353static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
354{
355 u8 result = ec_read_u8(WIRELESS_ADDR);
356 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
357 rfkill_set_hw_state(rfkill, hw_blocked);
358}
359
360static const struct rfkill_ops compal_rfkill_ops = {
361 .poll = compal_rfkill_poll,
362 .set_block = compal_rfkill_set,
363};
364
365
366/* Wake_up interface */
367#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \
368static ssize_t NAME##_show(struct device *dev, \
369 struct device_attribute *attr, char *buf) \
370{ \
371 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \
372} \
373static ssize_t NAME##_store(struct device *dev, \
374 struct device_attribute *attr, const char *buf, size_t count) \
375{ \
376 int state; \
377 u8 old_val = ec_read_u8(ADDR); \
378 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \
379 return -EINVAL; \
380 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \
381 return count; \
382}
383
384SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME)
385SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM)
386SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN)
387SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN)
388SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY)
389SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE)
390
391/* Fan control interface */
392static ssize_t pwm_enable_show(struct device *dev,
393 struct device_attribute *attr, char *buf)
394{
395 struct compal_data *data = dev_get_drvdata(dev);
396 return sprintf(buf, "%d\n", data->pwm_enable);
397}
398
399static ssize_t pwm_enable_store(struct device *dev,
400 struct device_attribute *attr, const char *buf, size_t count)
401{
402 struct compal_data *data = dev_get_drvdata(dev);
403 long val;
404 int err;
405
406 err = kstrtol(buf, 10, &val);
407 if (err)
408 return err;
409 if (val < 0)
410 return -EINVAL;
411
412 data->pwm_enable = val;
413
414 switch (val) {
415 case 0: /* Full speed */
416 pwm_enable_control();
417 set_pwm(255);
418 break;
419 case 1: /* As set by pwm1 */
420 pwm_enable_control();
421 set_pwm(data->curr_pwm);
422 break;
423 default: /* Control by motherboard */
424 pwm_disable_control();
425 break;
426 }
427
428 return count;
429}
430
431static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
432 char *buf)
433{
434 struct compal_data *data = dev_get_drvdata(dev);
435 return sprintf(buf, "%hhu\n", data->curr_pwm);
436}
437
438static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
439 const char *buf, size_t count)
440{
441 struct compal_data *data = dev_get_drvdata(dev);
442 long val;
443 int err;
444
445 err = kstrtol(buf, 10, &val);
446 if (err)
447 return err;
448 if (val < 0 || val > 255)
449 return -EINVAL;
450
451 data->curr_pwm = val;
452
453 if (data->pwm_enable != 1)
454 return count;
455 set_pwm(val);
456
457 return count;
458}
459
460static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
461 char *buf)
462{
463 return sprintf(buf, "%d\n", get_fan_rpm());
464}
465
466
467/* Temperature interface */
468#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \
469static ssize_t temp_##POSTFIX(struct device *dev, \
470 struct device_attribute *attr, char *buf) \
471{ \
472 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \
473} \
474static ssize_t label_##POSTFIX(struct device *dev, \
475 struct device_attribute *attr, char *buf) \
476{ \
477 return sprintf(buf, "%s\n", LABEL); \
478}
479
480/* Labels as in service guide */
481TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP");
482TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL");
483TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS");
484TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge");
485TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP");
486TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90");
487
488
489/* Power supply interface */
490static int bat_status(void)
491{
492 u8 status0 = ec_read_u8(BAT_STATUS0);
493 u8 status1 = ec_read_u8(BAT_STATUS1);
494
495 if (status0 & BAT_S0_CHARGING)
496 return POWER_SUPPLY_STATUS_CHARGING;
497 if (status0 & BAT_S0_DISCHARGE)
498 return POWER_SUPPLY_STATUS_DISCHARGING;
499 if (status1 & BAT_S1_FULL)
500 return POWER_SUPPLY_STATUS_FULL;
501 return POWER_SUPPLY_STATUS_NOT_CHARGING;
502}
503
504static int bat_health(void)
505{
506 u8 status = ec_read_u8(BAT_STOP_CHARGE1);
507
508 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE)
509 return POWER_SUPPLY_HEALTH_OVERHEAT;
510 if (status & BAT_STOP_CHRG1_OVERVOLTAGE)
511 return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
512 if (status & BAT_STOP_CHRG1_BAD_CELL)
513 return POWER_SUPPLY_HEALTH_DEAD;
514 if (status & BAT_STOP_CHRG1_COMM_FAIL)
515 return POWER_SUPPLY_HEALTH_UNKNOWN;
516 return POWER_SUPPLY_HEALTH_GOOD;
517}
518
519static int bat_is_present(void)
520{
521 u8 status = ec_read_u8(BAT_STATUS2);
522 return ((status & BAT_S1_EXISTS) != 0);
523}
524
525static int bat_technology(void)
526{
527 u8 status = ec_read_u8(BAT_STATUS1);
528
529 if (status & BAT_S1_LiION_OR_NiMH)
530 return POWER_SUPPLY_TECHNOLOGY_LION;
531 return POWER_SUPPLY_TECHNOLOGY_NiMH;
532}
533
534static int bat_capacity_level(void)
535{
536 u8 status0 = ec_read_u8(BAT_STATUS0);
537 u8 status1 = ec_read_u8(BAT_STATUS1);
538 u8 status2 = ec_read_u8(BAT_STATUS2);
539
540 if (status0 & BAT_S0_DISCHRG_CRITICAL
541 || status1 & BAT_S1_EMPTY
542 || status2 & BAT_S2_LOW_LOW)
543 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
544 if (status0 & BAT_S0_LOW)
545 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
546 if (status1 & BAT_S1_FULL)
547 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
548 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
549}
550
551static int bat_get_property(struct power_supply *psy,
552 enum power_supply_property psp,
553 union power_supply_propval *val)
554{
555 struct compal_data *data = power_supply_get_drvdata(psy);
556
557 switch (psp) {
558 case POWER_SUPPLY_PROP_STATUS:
559 val->intval = bat_status();
560 break;
561 case POWER_SUPPLY_PROP_HEALTH:
562 val->intval = bat_health();
563 break;
564 case POWER_SUPPLY_PROP_PRESENT:
565 val->intval = bat_is_present();
566 break;
567 case POWER_SUPPLY_PROP_TECHNOLOGY:
568 val->intval = bat_technology();
569 break;
570 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
571 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
572 break;
573 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
574 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
575 break;
576 case POWER_SUPPLY_PROP_CURRENT_NOW:
577 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
578 break;
579 case POWER_SUPPLY_PROP_CURRENT_AVG:
580 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
581 break;
582 case POWER_SUPPLY_PROP_POWER_NOW:
583 val->intval = ec_read_u8(BAT_POWER) * 1000000;
584 break;
585 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
586 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
587 break;
588 case POWER_SUPPLY_PROP_CHARGE_NOW:
589 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
590 break;
591 case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
592 val->intval = ec_read_u8(BAT_CHARGE_LIMIT);
593 break;
594 case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
595 val->intval = BAT_CHARGE_LIMIT_MAX;
596 break;
597 case POWER_SUPPLY_PROP_CAPACITY:
598 val->intval = ec_read_u8(BAT_CAPACITY);
599 break;
600 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
601 val->intval = bat_capacity_level();
602 break;
603 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
604 * the number of degrees, whereas BAT_TEMP is somewhat more
605 * complicated. It looks like this is a negative nember with a
606 * 100/256 divider and an offset of 222. Both were determined
607 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
608 case POWER_SUPPLY_PROP_TEMP:
609 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
610 break;
611 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
612 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
613 break;
614 /* Neither the model name nor manufacturer name work for me. */
615 case POWER_SUPPLY_PROP_MODEL_NAME:
616 val->strval = data->bat_model_name;
617 break;
618 case POWER_SUPPLY_PROP_MANUFACTURER:
619 val->strval = data->bat_manufacturer_name;
620 break;
621 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
622 val->strval = data->bat_serial_number;
623 break;
624 default:
625 break;
626 }
627 return 0;
628}
629
630static int bat_set_property(struct power_supply *psy,
631 enum power_supply_property psp,
632 const union power_supply_propval *val)
633{
634 int level;
635
636 switch (psp) {
637 case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
638 level = val->intval;
639 if (level < 0 || level > BAT_CHARGE_LIMIT_MAX)
640 return -EINVAL;
641 if (ec_write(BAT_CHARGE_LIMIT, level) < 0)
642 return -EIO;
643 break;
644 default:
645 break;
646 }
647 return 0;
648}
649
650static int bat_writeable_property(struct power_supply *psy,
651 enum power_supply_property psp)
652{
653 switch (psp) {
654 case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
655 return 1;
656 default:
657 return 0;
658 }
659}
660
661
662
663
664/* ============== */
665/* Driver Globals */
666/* ============== */
667static DEVICE_ATTR_RW(wake_up_pme);
668static DEVICE_ATTR_RW(wake_up_modem);
669static DEVICE_ATTR_RW(wake_up_lan);
670static DEVICE_ATTR_RW(wake_up_wlan);
671static DEVICE_ATTR_RW(wake_up_key);
672static DEVICE_ATTR_RW(wake_up_mouse);
673
674static DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL);
675static DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL);
676static DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL);
677static DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL);
678static DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL);
679static DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL);
680static DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL);
681static DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL);
682static DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL);
683static DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL);
684static DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL);
685static DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL);
686static DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL);
687static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store);
688static DEVICE_ATTR(pwm1_enable,
689 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store);
690
691static struct attribute *compal_platform_attrs[] = {
692 &dev_attr_wake_up_pme.attr,
693 &dev_attr_wake_up_modem.attr,
694 &dev_attr_wake_up_lan.attr,
695 &dev_attr_wake_up_wlan.attr,
696 &dev_attr_wake_up_key.attr,
697 &dev_attr_wake_up_mouse.attr,
698 NULL
699};
700static const struct attribute_group compal_platform_attr_group = {
701 .attrs = compal_platform_attrs
702};
703
704static struct attribute *compal_hwmon_attrs[] = {
705 &dev_attr_pwm1_enable.attr,
706 &dev_attr_pwm1.attr,
707 &dev_attr_fan1_input.attr,
708 &dev_attr_temp1_input.attr,
709 &dev_attr_temp2_input.attr,
710 &dev_attr_temp3_input.attr,
711 &dev_attr_temp4_input.attr,
712 &dev_attr_temp5_input.attr,
713 &dev_attr_temp6_input.attr,
714 &dev_attr_temp1_label.attr,
715 &dev_attr_temp2_label.attr,
716 &dev_attr_temp3_label.attr,
717 &dev_attr_temp4_label.attr,
718 &dev_attr_temp5_label.attr,
719 &dev_attr_temp6_label.attr,
720 NULL
721};
722ATTRIBUTE_GROUPS(compal_hwmon);
723
724static enum power_supply_property compal_bat_properties[] = {
725 POWER_SUPPLY_PROP_STATUS,
726 POWER_SUPPLY_PROP_HEALTH,
727 POWER_SUPPLY_PROP_PRESENT,
728 POWER_SUPPLY_PROP_TECHNOLOGY,
729 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
730 POWER_SUPPLY_PROP_VOLTAGE_NOW,
731 POWER_SUPPLY_PROP_CURRENT_NOW,
732 POWER_SUPPLY_PROP_CURRENT_AVG,
733 POWER_SUPPLY_PROP_POWER_NOW,
734 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
735 POWER_SUPPLY_PROP_CHARGE_NOW,
736 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
737 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
738 POWER_SUPPLY_PROP_CAPACITY,
739 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
740 POWER_SUPPLY_PROP_TEMP,
741 POWER_SUPPLY_PROP_TEMP_AMBIENT,
742 POWER_SUPPLY_PROP_MODEL_NAME,
743 POWER_SUPPLY_PROP_MANUFACTURER,
744 POWER_SUPPLY_PROP_SERIAL_NUMBER,
745};
746
747static struct backlight_device *compalbl_device;
748
749static struct platform_device *compal_device;
750
751static struct rfkill *wifi_rfkill;
752static struct rfkill *bt_rfkill;
753
754
755
756
757
758/* =================================== */
759/* Initialization & clean-up functions */
760/* =================================== */
761
762static int dmi_check_cb(const struct dmi_system_id *id)
763{
764 pr_info("Identified laptop model '%s'\n", id->ident);
765 extra_features = false;
766 return 1;
767}
768
769static int dmi_check_cb_extra(const struct dmi_system_id *id)
770{
771 pr_info("Identified laptop model '%s', enabling extra features\n",
772 id->ident);
773 extra_features = true;
774 return 1;
775}
776
777static const struct dmi_system_id compal_dmi_table[] __initconst = {
778 {
779 .ident = "FL90/IFL90",
780 .matches = {
781 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
782 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
783 },
784 .callback = dmi_check_cb
785 },
786 {
787 .ident = "FL90/IFL90",
788 .matches = {
789 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
790 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
791 },
792 .callback = dmi_check_cb
793 },
794 {
795 .ident = "FL91/IFL91",
796 .matches = {
797 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
798 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
799 },
800 .callback = dmi_check_cb
801 },
802 {
803 .ident = "FL92/JFL92",
804 .matches = {
805 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
806 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
807 },
808 .callback = dmi_check_cb
809 },
810 {
811 .ident = "FT00/IFT00",
812 .matches = {
813 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
814 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
815 },
816 .callback = dmi_check_cb
817 },
818 {
819 .ident = "Dell Mini 9",
820 .matches = {
821 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
822 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
823 },
824 .callback = dmi_check_cb
825 },
826 {
827 .ident = "Dell Mini 10",
828 .matches = {
829 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
830 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
831 },
832 .callback = dmi_check_cb
833 },
834 {
835 .ident = "Dell Mini 10v",
836 .matches = {
837 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
838 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
839 },
840 .callback = dmi_check_cb
841 },
842 {
843 .ident = "Dell Mini 1012",
844 .matches = {
845 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
846 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
847 },
848 .callback = dmi_check_cb
849 },
850 {
851 .ident = "Dell Inspiron 11z",
852 .matches = {
853 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
854 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
855 },
856 .callback = dmi_check_cb
857 },
858 {
859 .ident = "Dell Mini 12",
860 .matches = {
861 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
862 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
863 },
864 .callback = dmi_check_cb
865 },
866 {
867 .ident = "JHL90",
868 .matches = {
869 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
870 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
871 },
872 .callback = dmi_check_cb_extra
873 },
874 {
875 .ident = "KHLB2",
876 .matches = {
877 DMI_MATCH(DMI_BOARD_NAME, "KHLB2"),
878 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
879 },
880 .callback = dmi_check_cb_extra
881 },
882 { }
883};
884MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
885
886static const struct power_supply_desc psy_bat_desc = {
887 .name = DRIVER_NAME,
888 .type = POWER_SUPPLY_TYPE_BATTERY,
889 .properties = compal_bat_properties,
890 .num_properties = ARRAY_SIZE(compal_bat_properties),
891 .get_property = bat_get_property,
892 .set_property = bat_set_property,
893 .property_is_writeable = bat_writeable_property,
894};
895
896static void initialize_power_supply_data(struct compal_data *data)
897{
898 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
899 data->bat_manufacturer_name,
900 BAT_MANUFACTURER_NAME_LEN);
901 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
902
903 ec_read_sequence(BAT_MODEL_NAME_ADDR,
904 data->bat_model_name,
905 BAT_MODEL_NAME_LEN);
906 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
907
908 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
909 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
910}
911
912static void initialize_fan_control_data(struct compal_data *data)
913{
914 data->pwm_enable = 2; /* Keep motherboard in control for now */
915 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception
916 if we take over... */
917}
918
919static int setup_rfkill(void)
920{
921 int ret;
922
923 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
924 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
925 (void *) WIRELESS_WLAN);
926 if (!wifi_rfkill)
927 return -ENOMEM;
928
929 ret = rfkill_register(wifi_rfkill);
930 if (ret)
931 goto err_wifi;
932
933 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
934 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
935 (void *) WIRELESS_BT);
936 if (!bt_rfkill) {
937 ret = -ENOMEM;
938 goto err_allocate_bt;
939 }
940 ret = rfkill_register(bt_rfkill);
941 if (ret)
942 goto err_register_bt;
943
944 return 0;
945
946err_register_bt:
947 rfkill_destroy(bt_rfkill);
948
949err_allocate_bt:
950 rfkill_unregister(wifi_rfkill);
951
952err_wifi:
953 rfkill_destroy(wifi_rfkill);
954
955 return ret;
956}
957
958static int compal_probe(struct platform_device *pdev)
959{
960 int err;
961 struct compal_data *data;
962 struct device *hwmon_dev;
963 struct power_supply_config psy_cfg = {};
964
965 if (!extra_features)
966 return 0;
967
968 /* Fan control */
969 data = devm_kzalloc(&pdev->dev, sizeof(struct compal_data), GFP_KERNEL);
970 if (!data)
971 return -ENOMEM;
972
973 initialize_fan_control_data(data);
974
975 err = sysfs_create_group(&pdev->dev.kobj, &compal_platform_attr_group);
976 if (err)
977 return err;
978
979 hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
980 "compal", data,
981 compal_hwmon_groups);
982 if (IS_ERR(hwmon_dev)) {
983 err = PTR_ERR(hwmon_dev);
984 goto remove;
985 }
986
987 /* Power supply */
988 initialize_power_supply_data(data);
989 psy_cfg.drv_data = data;
990 data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc,
991 &psy_cfg);
992 if (IS_ERR(data->psy)) {
993 err = PTR_ERR(data->psy);
994 goto remove;
995 }
996
997 platform_set_drvdata(pdev, data);
998
999 return 0;
1000
1001remove:
1002 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1003 return err;
1004}
1005
1006static int compal_remove(struct platform_device *pdev)
1007{
1008 struct compal_data *data;
1009
1010 if (!extra_features)
1011 return 0;
1012
1013 pr_info("Unloading: resetting fan control to motherboard\n");
1014 pwm_disable_control();
1015
1016 data = platform_get_drvdata(pdev);
1017 power_supply_unregister(data->psy);
1018
1019 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1020
1021 return 0;
1022}
1023
1024static struct platform_driver compal_driver = {
1025 .driver = {
1026 .name = DRIVER_NAME,
1027 },
1028 .probe = compal_probe,
1029 .remove = compal_remove,
1030};
1031
1032static int __init compal_init(void)
1033{
1034 int ret;
1035
1036 if (acpi_disabled) {
1037 pr_err("ACPI needs to be enabled for this driver to work!\n");
1038 return -ENODEV;
1039 }
1040
1041 if (!force && !dmi_check_system(compal_dmi_table)) {
1042 pr_err("Motherboard not recognized (You could try the module's force-parameter)\n");
1043 return -ENODEV;
1044 }
1045
1046 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1047 struct backlight_properties props;
1048 memset(&props, 0, sizeof(struct backlight_properties));
1049 props.type = BACKLIGHT_PLATFORM;
1050 props.max_brightness = BACKLIGHT_LEVEL_MAX;
1051 compalbl_device = backlight_device_register(DRIVER_NAME,
1052 NULL, NULL,
1053 &compalbl_ops,
1054 &props);
1055 if (IS_ERR(compalbl_device))
1056 return PTR_ERR(compalbl_device);
1057 }
1058
1059 ret = platform_driver_register(&compal_driver);
1060 if (ret)
1061 goto err_backlight;
1062
1063 compal_device = platform_device_alloc(DRIVER_NAME, PLATFORM_DEVID_NONE);
1064 if (!compal_device) {
1065 ret = -ENOMEM;
1066 goto err_platform_driver;
1067 }
1068
1069 ret = platform_device_add(compal_device); /* This calls compal_probe */
1070 if (ret)
1071 goto err_platform_device;
1072
1073 ret = setup_rfkill();
1074 if (ret)
1075 goto err_rfkill;
1076
1077 pr_info("Driver " DRIVER_VERSION " successfully loaded\n");
1078 return 0;
1079
1080err_rfkill:
1081 platform_device_del(compal_device);
1082
1083err_platform_device:
1084 platform_device_put(compal_device);
1085
1086err_platform_driver:
1087 platform_driver_unregister(&compal_driver);
1088
1089err_backlight:
1090 backlight_device_unregister(compalbl_device);
1091
1092 return ret;
1093}
1094
1095static void __exit compal_cleanup(void)
1096{
1097 platform_device_unregister(compal_device);
1098 platform_driver_unregister(&compal_driver);
1099 backlight_device_unregister(compalbl_device);
1100 rfkill_unregister(wifi_rfkill);
1101 rfkill_unregister(bt_rfkill);
1102 rfkill_destroy(wifi_rfkill);
1103 rfkill_destroy(bt_rfkill);
1104
1105 pr_info("Driver unloaded\n");
1106}
1107
1108module_init(compal_init);
1109module_exit(compal_cleanup);
1110
1111MODULE_AUTHOR("Cezary Jackiewicz");
1112MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
1113MODULE_DESCRIPTION("Compal Laptop Support");
1114MODULE_VERSION(DRIVER_VERSION);
1115MODULE_LICENSE("GPL");