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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
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
123#define FAN_FULL_ON_ENABLE 0x76
124#define FAN_FULL_ON_DISABLE 0x77
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
173
174struct compal_data{
175
176 int pwm_enable;
177 unsigned char curr_pwm;
178
179
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};
186
187
188
189
190
191static bool force;
192module_param(force, bool, 0);
193MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
194
195
196
197static bool extra_features;
198
199
200
201
202
203
204
205
206
207
208
209
210
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};
230
231
232
233
234
235
236
237
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}
262
263static void ec_read_sequence(u8 addr, u8 *buf, int len)
264{
265 int i;
266 for (i = 0; i < len; i++)
267 ec_read(addr + i, buf + i);
268}
269
270
271
272static int set_backlight_level(int level)
273{
274 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
275 return -EINVAL;
276
277 ec_write(BACKLIGHT_LEVEL_ADDR, level);
278
279 return 0;
280}
281
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;
290 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0);
291}
292
293
294
295static void pwm_enable_control(void)
296{
297 unsigned char writeData = PWM_ENABLE_DATA;
298 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0);
299}
300
301static void pwm_disable_control(void)
302{
303 unsigned char writeData = PWM_DISABLE_DATA;
304 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0);
305}
306
307static void set_pwm(int pwm)
308{
309 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0);
310}
311
312static int get_fan_rpm(void)
313{
314 u8 value, data = FAN_DATA;
315 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1);
316 return 100 * (int)value;
317}
318
319
320
321
322
323
324
325
326
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;
337
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;
342}
343
344static const struct backlight_ops compalbl_ops = {
345 .get_brightness = bl_get_brightness,
346 .update_status = bl_update_status,
347};
348
349
350
351static int compal_rfkill_set(void *data, bool blocked)
352{
353 unsigned long radio = (unsigned long) data;
354 u8 result = ec_read_u8(WIRELESS_ADDR);
355 u8 value;
356
357 if (!blocked)
358 value = (u8) (result | radio);
359 else
360 value = (u8) (result & ~radio);
361 ec_write(WIRELESS_ADDR, value);
362
363 return 0;
364}
365
366static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
367{
368 u8 result = ec_read_u8(WIRELESS_ADDR);
369 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
370 rfkill_set_hw_state(rfkill, hw_blocked);
371}
372
373static const struct rfkill_ops compal_rfkill_ops = {
374 .poll = compal_rfkill_poll,
375 .set_block = compal_rfkill_set,
376};
377
378
379
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
404
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}
411
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;
418
419 err = kstrtol(buf, 10, &val);
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:
429 pwm_enable_control();
430 set_pwm(255);
431 break;
432 case 1:
433 pwm_enable_control();
434 set_pwm(data->curr_pwm);
435 break;
436 default:
437 pwm_disable_control();
438 break;
439 }
440
441 return count;
442}
443
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}
450
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;
457
458 err = kstrtol(buf, 10, &val);
459 if (err)
460 return err;
461 if (val < 0 || val > 255)
462 return -EINVAL;
463
464 data->curr_pwm = val;
465
466 if (data->pwm_enable != 1)
467 return count;
468 set_pwm(val);
469
470 return count;
471}
472
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}
478
479
480
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
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
503static int bat_status(void)
504{
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;
515}
516
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}
531
532static int bat_is_present(void)
533{
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 = power_supply_get_drvdata(psy);
569
570 switch (psp) {
571 case POWER_SUPPLY_PROP_STATUS:
572 val->intval = bat_status();
573 break;
574 case POWER_SUPPLY_PROP_HEALTH:
575 val->intval = bat_health();
576 break;
577 case POWER_SUPPLY_PROP_PRESENT:
578 val->intval = bat_is_present();
579 break;
580 case POWER_SUPPLY_PROP_TECHNOLOGY:
581 val->intval = bat_technology();
582 break;
583 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
584 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
585 break;
586 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
587 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
588 break;
589 case POWER_SUPPLY_PROP_CURRENT_NOW:
590 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
591 break;
592 case POWER_SUPPLY_PROP_CURRENT_AVG:
593 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
594 break;
595 case POWER_SUPPLY_PROP_POWER_NOW:
596 val->intval = ec_read_u8(BAT_POWER) * 1000000;
597 break;
598 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
599 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
600 break;
601 case POWER_SUPPLY_PROP_CHARGE_NOW:
602 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
603 break;
604 case POWER_SUPPLY_PROP_CAPACITY:
605 val->intval = ec_read_u8(BAT_CAPACITY);
606 break;
607 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
608 val->intval = bat_capacity_level();
609 break;
610
611
612
613
614
615 case POWER_SUPPLY_PROP_TEMP:
616 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
617 break;
618 case POWER_SUPPLY_PROP_TEMP_AMBIENT:
619 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
620 break;
621
622 case POWER_SUPPLY_PROP_MODEL_NAME:
623 val->strval = data->bat_model_name;
624 break;
625 case POWER_SUPPLY_PROP_MANUFACTURER:
626 val->strval = data->bat_manufacturer_name;
627 break;
628 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
629 val->strval = data->bat_serial_number;
630 break;
631 default:
632 break;
633 }
634 return 0;
635}
636
637
638
639
640
641
642
643
644static DEVICE_ATTR(wake_up_pme,
645 0644, wake_up_pme_show, wake_up_pme_store);
646static DEVICE_ATTR(wake_up_modem,
647 0644, wake_up_modem_show, wake_up_modem_store);
648static DEVICE_ATTR(wake_up_lan,
649 0644, wake_up_lan_show, wake_up_lan_store);
650static DEVICE_ATTR(wake_up_wlan,
651 0644, wake_up_wlan_show, wake_up_wlan_store);
652static DEVICE_ATTR(wake_up_key,
653 0644, wake_up_key_show, wake_up_key_store);
654static DEVICE_ATTR(wake_up_mouse,
655 0644, wake_up_mouse_show, wake_up_mouse_store);
656
657static DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL);
658static DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL);
659static DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL);
660static DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL);
661static DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL);
662static DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL);
663static DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL);
664static DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL);
665static DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL);
666static DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL);
667static DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL);
668static DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL);
669static DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL);
670static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store);
671static DEVICE_ATTR(pwm1_enable,
672 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store);
673
674static struct attribute *compal_platform_attrs[] = {
675 &dev_attr_wake_up_pme.attr,
676 &dev_attr_wake_up_modem.attr,
677 &dev_attr_wake_up_lan.attr,
678 &dev_attr_wake_up_wlan.attr,
679 &dev_attr_wake_up_key.attr,
680 &dev_attr_wake_up_mouse.attr,
681 NULL
682};
683static struct attribute_group compal_platform_attr_group = {
684 .attrs = compal_platform_attrs
685};
686
687static struct attribute *compal_hwmon_attrs[] = {
688 &dev_attr_pwm1_enable.attr,
689 &dev_attr_pwm1.attr,
690 &dev_attr_fan1_input.attr,
691 &dev_attr_temp1_input.attr,
692 &dev_attr_temp2_input.attr,
693 &dev_attr_temp3_input.attr,
694 &dev_attr_temp4_input.attr,
695 &dev_attr_temp5_input.attr,
696 &dev_attr_temp6_input.attr,
697 &dev_attr_temp1_label.attr,
698 &dev_attr_temp2_label.attr,
699 &dev_attr_temp3_label.attr,
700 &dev_attr_temp4_label.attr,
701 &dev_attr_temp5_label.attr,
702 &dev_attr_temp6_label.attr,
703 NULL
704};
705ATTRIBUTE_GROUPS(compal_hwmon);
706
707static int compal_probe(struct platform_device *);
708static int compal_remove(struct platform_device *);
709static struct platform_driver compal_driver = {
710 .driver = {
711 .name = DRIVER_NAME,
712 },
713 .probe = compal_probe,
714 .remove = compal_remove,
715};
716
717static enum power_supply_property compal_bat_properties[] = {
718 POWER_SUPPLY_PROP_STATUS,
719 POWER_SUPPLY_PROP_HEALTH,
720 POWER_SUPPLY_PROP_PRESENT,
721 POWER_SUPPLY_PROP_TECHNOLOGY,
722 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
723 POWER_SUPPLY_PROP_VOLTAGE_NOW,
724 POWER_SUPPLY_PROP_CURRENT_NOW,
725 POWER_SUPPLY_PROP_CURRENT_AVG,
726 POWER_SUPPLY_PROP_POWER_NOW,
727 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
728 POWER_SUPPLY_PROP_CHARGE_NOW,
729 POWER_SUPPLY_PROP_CAPACITY,
730 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
731 POWER_SUPPLY_PROP_TEMP,
732 POWER_SUPPLY_PROP_TEMP_AMBIENT,
733 POWER_SUPPLY_PROP_MODEL_NAME,
734 POWER_SUPPLY_PROP_MANUFACTURER,
735 POWER_SUPPLY_PROP_SERIAL_NUMBER,
736};
737
738static struct backlight_device *compalbl_device;
739
740static struct platform_device *compal_device;
741
742static struct rfkill *wifi_rfkill;
743static struct rfkill *bt_rfkill;
744
745
746
747
748
749
750
751
752
753static int dmi_check_cb(const struct dmi_system_id *id)
754{
755 pr_info("Identified laptop model '%s'\n", id->ident);
756 extra_features = false;
757 return 1;
758}
759
760static int dmi_check_cb_extra(const struct dmi_system_id *id)
761{
762 pr_info("Identified laptop model '%s', enabling extra features\n",
763 id->ident);
764 extra_features = true;
765 return 1;
766}
767
768static struct dmi_system_id __initdata compal_dmi_table[] = {
769 {
770 .ident = "FL90/IFL90",
771 .matches = {
772 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
773 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
774 },
775 .callback = dmi_check_cb
776 },
777 {
778 .ident = "FL90/IFL90",
779 .matches = {
780 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
781 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
782 },
783 .callback = dmi_check_cb
784 },
785 {
786 .ident = "FL91/IFL91",
787 .matches = {
788 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
789 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
790 },
791 .callback = dmi_check_cb
792 },
793 {
794 .ident = "FL92/JFL92",
795 .matches = {
796 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
797 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
798 },
799 .callback = dmi_check_cb
800 },
801 {
802 .ident = "FT00/IFT00",
803 .matches = {
804 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
805 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
806 },
807 .callback = dmi_check_cb
808 },
809 {
810 .ident = "Dell Mini 9",
811 .matches = {
812 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
813 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
814 },
815 .callback = dmi_check_cb
816 },
817 {
818 .ident = "Dell Mini 10",
819 .matches = {
820 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
821 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
822 },
823 .callback = dmi_check_cb
824 },
825 {
826 .ident = "Dell Mini 10v",
827 .matches = {
828 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
829 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
830 },
831 .callback = dmi_check_cb
832 },
833 {
834 .ident = "Dell Mini 1012",
835 .matches = {
836 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
837 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
838 },
839 .callback = dmi_check_cb
840 },
841 {
842 .ident = "Dell Inspiron 11z",
843 .matches = {
844 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
845 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
846 },
847 .callback = dmi_check_cb
848 },
849 {
850 .ident = "Dell Mini 12",
851 .matches = {
852 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
853 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
854 },
855 .callback = dmi_check_cb
856 },
857 {
858 .ident = "JHL90",
859 .matches = {
860 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
861 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
862 },
863 .callback = dmi_check_cb_extra
864 },
865 {
866 .ident = "KHLB2",
867 .matches = {
868 DMI_MATCH(DMI_BOARD_NAME, "KHLB2"),
869 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
870 },
871 .callback = dmi_check_cb_extra
872 },
873 { }
874};
875MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
876
877static const struct power_supply_desc psy_bat_desc = {
878 .name = DRIVER_NAME,
879 .type = POWER_SUPPLY_TYPE_BATTERY,
880 .properties = compal_bat_properties,
881 .num_properties = ARRAY_SIZE(compal_bat_properties),
882 .get_property = bat_get_property,
883};
884
885static void initialize_power_supply_data(struct compal_data *data)
886{
887
888 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
889 data->bat_manufacturer_name,
890 BAT_MANUFACTURER_NAME_LEN);
891 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
892
893 ec_read_sequence(BAT_MODEL_NAME_ADDR,
894 data->bat_model_name,
895 BAT_MODEL_NAME_LEN);
896 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
897
898 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
899 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
900}
901
902static void initialize_fan_control_data(struct compal_data *data)
903{
904 data->pwm_enable = 2;
905 data->curr_pwm = 255;
906
907}
908
909static int setup_rfkill(void)
910{
911 int ret;
912
913 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
914 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
915 (void *) WIRELESS_WLAN);
916 if (!wifi_rfkill)
917 return -ENOMEM;
918
919 ret = rfkill_register(wifi_rfkill);
920 if (ret)
921 goto err_wifi;
922
923 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
924 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
925 (void *) WIRELESS_BT);
926 if (!bt_rfkill) {
927 ret = -ENOMEM;
928 goto err_allocate_bt;
929 }
930 ret = rfkill_register(bt_rfkill);
931 if (ret)
932 goto err_register_bt;
933
934 return 0;
935
936err_register_bt:
937 rfkill_destroy(bt_rfkill);
938
939err_allocate_bt:
940 rfkill_unregister(wifi_rfkill);
941
942err_wifi:
943 rfkill_destroy(wifi_rfkill);
944
945 return ret;
946}
947
948static int __init compal_init(void)
949{
950 int ret;
951
952 if (acpi_disabled) {
953 pr_err("ACPI needs to be enabled for this driver to work!\n");
954 return -ENODEV;
955 }
956
957 if (!force && !dmi_check_system(compal_dmi_table)) {
958 pr_err("Motherboard not recognized (You could try the module's force-parameter)\n");
959 return -ENODEV;
960 }
961
962 if (!acpi_video_backlight_support()) {
963 struct backlight_properties props;
964 memset(&props, 0, sizeof(struct backlight_properties));
965 props.type = BACKLIGHT_PLATFORM;
966 props.max_brightness = BACKLIGHT_LEVEL_MAX;
967 compalbl_device = backlight_device_register(DRIVER_NAME,
968 NULL, NULL,
969 &compalbl_ops,
970 &props);
971 if (IS_ERR(compalbl_device))
972 return PTR_ERR(compalbl_device);
973 }
974
975 ret = platform_driver_register(&compal_driver);
976 if (ret)
977 goto err_backlight;
978
979 compal_device = platform_device_alloc(DRIVER_NAME, -1);
980 if (!compal_device) {
981 ret = -ENOMEM;
982 goto err_platform_driver;
983 }
984
985 ret = platform_device_add(compal_device);
986 if (ret)
987 goto err_platform_device;
988
989 ret = setup_rfkill();
990 if (ret)
991 goto err_rfkill;
992
993 pr_info("Driver " DRIVER_VERSION " successfully loaded\n");
994 return 0;
995
996err_rfkill:
997 platform_device_del(compal_device);
998
999err_platform_device:
1000 platform_device_put(compal_device);
1001
1002err_platform_driver:
1003 platform_driver_unregister(&compal_driver);
1004
1005err_backlight:
1006 backlight_device_unregister(compalbl_device);
1007
1008 return ret;
1009}
1010
1011static int compal_probe(struct platform_device *pdev)
1012{
1013 int err;
1014 struct compal_data *data;
1015 struct device *hwmon_dev;
1016 struct power_supply_config psy_cfg = {};
1017
1018 if (!extra_features)
1019 return 0;
1020
1021
1022 data = devm_kzalloc(&pdev->dev, sizeof(struct compal_data), GFP_KERNEL);
1023 if (!data)
1024 return -ENOMEM;
1025
1026 initialize_fan_control_data(data);
1027
1028 err = sysfs_create_group(&pdev->dev.kobj, &compal_platform_attr_group);
1029 if (err)
1030 return err;
1031
1032 hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
1033 "compal", data,
1034 compal_hwmon_groups);
1035 if (IS_ERR(hwmon_dev)) {
1036 err = PTR_ERR(hwmon_dev);
1037 goto remove;
1038 }
1039
1040
1041 initialize_power_supply_data(data);
1042 psy_cfg.drv_data = data;
1043 data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc,
1044 &psy_cfg);
1045 if (IS_ERR(data->psy)) {
1046 err = PTR_ERR(data->psy);
1047 goto remove;
1048 }
1049
1050 platform_set_drvdata(pdev, data);
1051
1052 return 0;
1053
1054remove:
1055 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1056 return err;
1057}
1058
1059static void __exit compal_cleanup(void)
1060{
1061 platform_device_unregister(compal_device);
1062 platform_driver_unregister(&compal_driver);
1063 backlight_device_unregister(compalbl_device);
1064 rfkill_unregister(wifi_rfkill);
1065 rfkill_unregister(bt_rfkill);
1066 rfkill_destroy(wifi_rfkill);
1067 rfkill_destroy(bt_rfkill);
1068
1069 pr_info("Driver unloaded\n");
1070}
1071
1072static int compal_remove(struct platform_device *pdev)
1073{
1074 struct compal_data *data;
1075
1076 if (!extra_features)
1077 return 0;
1078
1079 pr_info("Unloading: resetting fan control to motherboard\n");
1080 pwm_disable_control();
1081
1082 data = platform_get_drvdata(pdev);
1083 power_supply_unregister(data->psy);
1084
1085 sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
1086
1087 return 0;
1088}
1089
1090
1091module_init(compal_init);
1092module_exit(compal_cleanup);
1093
1094MODULE_AUTHOR("Cezary Jackiewicz");
1095MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
1096MODULE_DESCRIPTION("Compal Laptop Support");
1097MODULE_VERSION(DRIVER_VERSION);
1098MODULE_LICENSE("GPL");
1099
