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-rw-r--r--drivers/platform/x86/compal-laptop.c929
1 files changed, 823 insertions, 106 deletions
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index 71ff1545a93..d071ce05632 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -24,17 +24,50 @@
24 */ 24 */
25 25
26/* 26/*
27 * comapl-laptop.c - Compal laptop support. 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)
28 * 45 *
29 * The driver registers itself with the rfkill subsystem and
30 * the Linux backlight control subsystem.
31 * 46 *
32 * This driver might work on other laptops produced by Compal. If you 47 * This driver might work on other laptops produced by Compal. If you
33 * want to try it you can pass force=1 as argument to the module which 48 * want to try it you can pass force=1 as argument to the module which
34 * will force it to load even when the DMI data doesn't identify the 49 * will force it to load even when the DMI data doesn't identify the
35 * laptop as FL9x. 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!
36 */ 65 */
37 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
38#include <linux/module.h> 71#include <linux/module.h>
39#include <linux/kernel.h> 72#include <linux/kernel.h>
40#include <linux/init.h> 73#include <linux/init.h>
@@ -43,71 +76,296 @@
43#include <linux/backlight.h> 76#include <linux/backlight.h>
44#include <linux/platform_device.h> 77#include <linux/platform_device.h>
45#include <linux/rfkill.h> 78#include <linux/rfkill.h>
79#include <linux/hwmon.h>
80#include <linux/hwmon-sysfs.h>
81#include <linux/power_supply.h>
82#include <linux/fb.h>
83
84
85/* ======= */
86/* Defines */
87/* ======= */
88#define DRIVER_NAME "compal-laptop"
89#define DRIVER_VERSION "0.2.7"
90
91#define BACKLIGHT_LEVEL_ADDR 0xB9
92#define BACKLIGHT_LEVEL_MAX 7
93#define BACKLIGHT_STATE_ADDR 0x59
94#define BACKLIGHT_STATE_ON_DATA 0xE1
95#define BACKLIGHT_STATE_OFF_DATA 0xE2
96
97#define WAKE_UP_ADDR 0xA4
98#define WAKE_UP_PME (1 << 0)
99#define WAKE_UP_MODEM (1 << 1)
100#define WAKE_UP_LAN (1 << 2)
101#define WAKE_UP_WLAN (1 << 4)
102#define WAKE_UP_KEY (1 << 6)
103#define WAKE_UP_MOUSE (1 << 7)
104
105#define WIRELESS_ADDR 0xBB
106#define WIRELESS_WLAN (1 << 0)
107#define WIRELESS_BT (1 << 1)
108#define WIRELESS_WLAN_EXISTS (1 << 2)
109#define WIRELESS_BT_EXISTS (1 << 3)
110#define WIRELESS_KILLSWITCH (1 << 4)
111
112#define PWM_ADDRESS 0x46
113#define PWM_DISABLE_ADDR 0x59
114#define PWM_DISABLE_DATA 0xA5
115#define PWM_ENABLE_ADDR 0x59
116#define PWM_ENABLE_DATA 0xA8
117
118#define FAN_ADDRESS 0x46
119#define FAN_DATA 0x81
120#define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */
121#define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */
122#define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */
123
124#define TEMP_CPU 0xB0
125#define TEMP_CPU_LOCAL 0xB1
126#define TEMP_CPU_DTS 0xB5
127#define TEMP_NORTHBRIDGE 0xB6
128#define TEMP_VGA 0xB4
129#define TEMP_SKIN 0xB2
130
131#define BAT_MANUFACTURER_NAME_ADDR 0x10
132#define BAT_MANUFACTURER_NAME_LEN 9
133#define BAT_MODEL_NAME_ADDR 0x19
134#define BAT_MODEL_NAME_LEN 6
135#define BAT_SERIAL_NUMBER_ADDR 0xC4
136#define BAT_SERIAL_NUMBER_LEN 5
137#define BAT_CHARGE_NOW 0xC2
138#define BAT_CHARGE_DESIGN 0xCA
139#define BAT_VOLTAGE_NOW 0xC6
140#define BAT_VOLTAGE_DESIGN 0xC8
141#define BAT_CURRENT_NOW 0xD0
142#define BAT_CURRENT_AVG 0xD2
143#define BAT_POWER 0xD4
144#define BAT_CAPACITY 0xCE
145#define BAT_TEMP 0xD6
146#define BAT_TEMP_AVG 0xD7
147#define BAT_STATUS0 0xC1
148#define BAT_STATUS1 0xF0
149#define BAT_STATUS2 0xF1
150#define BAT_STOP_CHARGE1 0xF2
151#define BAT_STOP_CHARGE2 0xF3
152
153#define BAT_S0_DISCHARGE (1 << 0)
154#define BAT_S0_DISCHRG_CRITICAL (1 << 2)
155#define BAT_S0_LOW (1 << 3)
156#define BAT_S0_CHARGING (1 << 1)
157#define BAT_S0_AC (1 << 7)
158#define BAT_S1_EXISTS (1 << 0)
159#define BAT_S1_FULL (1 << 1)
160#define BAT_S1_EMPTY (1 << 2)
161#define BAT_S1_LiION_OR_NiMH (1 << 7)
162#define BAT_S2_LOW_LOW (1 << 0)
163#define BAT_STOP_CHRG1_BAD_CELL (1 << 1)
164#define BAT_STOP_CHRG1_COMM_FAIL (1 << 2)
165#define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6)
166#define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7)
167
168
169/* ======= */
170/* Structs */
171/* ======= */
172struct compal_data{
173 /* Fan control */
174 struct device *hwmon_dev;
175 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by moterboard */
176 unsigned char curr_pwm;
177
178 /* Power supply */
179 struct power_supply psy;
180 struct power_supply_info psy_info;
181 char bat_model_name[BAT_MODEL_NAME_LEN + 1];
182 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
183 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1];
184};
46 185
47#define COMPAL_DRIVER_VERSION "0.2.6"
48 186
49#define COMPAL_LCD_LEVEL_MAX 8 187/* =============== */
188/* General globals */
189/* =============== */
190static int force;
191module_param(force, bool, 0);
192MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
50 193
51#define COMPAL_EC_COMMAND_WIRELESS 0xBB 194/* Support for the wake_on_XXX, hwmon and power_supply interface. Currently
52#define COMPAL_EC_COMMAND_LCD_LEVEL 0xB9 195 * only gets enabled on a JHL90 board. Might work with the others too */
196static bool extra_features;
197
198/* Nasty stuff. For some reason the fan control is very un-linear. I've
199 * come up with these values by looping through the possible inputs and
200 * watching the output of address 0x4F (do an ec_transaction writing 0x33
201 * into 0x4F and read a few bytes from the output, like so:
202 * u8 writeData = 0x33;
203 * ec_transaction(0x4F, &writeData, 1, buffer, 32, 0);
204 * That address is labled "fan1 table information" in the service manual.
205 * It should be clear which value in 'buffer' changes). This seems to be
206 * related to fan speed. It isn't a proper 'realtime' fan speed value
207 * though, because physically stopping or speeding up the fan doesn't
208 * change it. It might be the average voltage or current of the pwm output.
209 * Nevertheless, it is more fine-grained than the actual RPM reading */
210static const unsigned char pwm_lookup_table[256] = {
211 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6,
212 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95,
213 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70,
214 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94,
215 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139,
216 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76,
217 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22,
218 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219,
219 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186,
220 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33,
221 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38,
222 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46,
223 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48,
224 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44,
225 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251,
226 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187,
227 187, 187, 193, 50
228};
53 229
54#define KILLSWITCH_MASK 0x10
55#define WLAN_MASK 0x01
56#define BT_MASK 0x02
57 230
58static struct rfkill *wifi_rfkill;
59static struct rfkill *bt_rfkill;
60static struct platform_device *compal_device;
61 231
62static int force;
63module_param(force, bool, 0);
64MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
65 232
66/* Hardware access */ 233/* ========================= */
234/* Hardware access functions */
235/* ========================= */
236/* General access */
237static u8 ec_read_u8(u8 addr)
238{
239 u8 value;
240 ec_read(addr, &value);
241 return value;
242}
243
244static s8 ec_read_s8(u8 addr)
245{
246 return (s8)ec_read_u8(addr);
247}
248
249static u16 ec_read_u16(u8 addr)
250{
251 int hi, lo;
252 lo = ec_read_u8(addr);
253 hi = ec_read_u8(addr + 1);
254 return (hi << 8) + lo;
255}
256
257static s16 ec_read_s16(u8 addr)
258{
259 return (s16) ec_read_u16(addr);
260}
67 261
68static int set_lcd_level(int level) 262static void ec_read_sequence(u8 addr, u8 *buf, int len)
69{ 263{
70 if (level < 0 || level >= COMPAL_LCD_LEVEL_MAX) 264 int i;
265 for (i = 0; i < len; i++)
266 ec_read(addr + i, buf + i);
267}
268
269
270/* Backlight access */
271static int set_backlight_level(int level)
272{
273 if (level < 0 || level > BACKLIGHT_LEVEL_MAX)
71 return -EINVAL; 274 return -EINVAL;
72 275
73 ec_write(COMPAL_EC_COMMAND_LCD_LEVEL, level); 276 ec_write(BACKLIGHT_LEVEL_ADDR, level);
74 277
75 return 0; 278 return 1;
279}
280
281static int get_backlight_level(void)
282{
283 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR);
76} 284}
77 285
78static int get_lcd_level(void) 286static void set_backlight_state(bool on)
79{ 287{
80 u8 result; 288 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA;
289 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0, 0);
290}
291
292
293/* Fan control access */
294static void pwm_enable_control(void)
295{
296 unsigned char writeData = PWM_ENABLE_DATA;
297 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0, 0);
298}
299
300static void pwm_disable_control(void)
301{
302 unsigned char writeData = PWM_DISABLE_DATA;
303 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0, 0);
304}
81 305
82 ec_read(COMPAL_EC_COMMAND_LCD_LEVEL, &result); 306static void set_pwm(int pwm)
307{
308 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0, 0);
309}
310
311static int get_fan_rpm(void)
312{
313 u8 value, data = FAN_DATA;
314 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1, 0);
315 return 100 * (int)value;
316}
317
318
319
320
321/* =================== */
322/* Interface functions */
323/* =================== */
324
325/* Backlight interface */
326static int bl_get_brightness(struct backlight_device *b)
327{
328 return get_backlight_level();
329}
330
331static int bl_update_status(struct backlight_device *b)
332{
333 int ret = set_backlight_level(b->props.brightness);
334 if (ret)
335 return ret;
83 336
84 return (int) result; 337 set_backlight_state((b->props.power == FB_BLANK_UNBLANK)
338 && !(b->props.state & BL_CORE_SUSPENDED)
339 && !(b->props.state & BL_CORE_FBBLANK));
340 return 0;
85} 341}
86 342
343static const struct backlight_ops compalbl_ops = {
344 .get_brightness = bl_get_brightness,
345 .update_status = bl_update_status,
346};
347
348
349/* Wireless interface */
87static int compal_rfkill_set(void *data, bool blocked) 350static int compal_rfkill_set(void *data, bool blocked)
88{ 351{
89 unsigned long radio = (unsigned long) data; 352 unsigned long radio = (unsigned long) data;
90 u8 result, value; 353 u8 result = ec_read_u8(WIRELESS_ADDR);
91 354 u8 value;
92 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
93 355
94 if (!blocked) 356 if (!blocked)
95 value = (u8) (result | radio); 357 value = (u8) (result | radio);
96 else 358 else
97 value = (u8) (result & ~radio); 359 value = (u8) (result & ~radio);
98 ec_write(COMPAL_EC_COMMAND_WIRELESS, value); 360 ec_write(WIRELESS_ADDR, value);
99 361
100 return 0; 362 return 0;
101} 363}
102 364
103static void compal_rfkill_poll(struct rfkill *rfkill, void *data) 365static void compal_rfkill_poll(struct rfkill *rfkill, void *data)
104{ 366{
105 u8 result; 367 u8 result = ec_read_u8(WIRELESS_ADDR);
106 bool hw_blocked; 368 bool hw_blocked = !(result & WIRELESS_KILLSWITCH);
107
108 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
109
110 hw_blocked = !(result & KILLSWITCH_MASK);
111 rfkill_set_hw_state(rfkill, hw_blocked); 369 rfkill_set_hw_state(rfkill, hw_blocked);
112} 370}
113 371
@@ -116,80 +374,404 @@ static const struct rfkill_ops compal_rfkill_ops = {
116 .set_block = compal_rfkill_set, 374 .set_block = compal_rfkill_set,
117}; 375};
118 376
119static int setup_rfkill(void) 377
378/* Wake_up interface */
379#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \
380static ssize_t NAME##_show(struct device *dev, \
381 struct device_attribute *attr, char *buf) \
382{ \
383 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \
384} \
385static ssize_t NAME##_store(struct device *dev, \
386 struct device_attribute *attr, const char *buf, size_t count) \
387{ \
388 int state; \
389 u8 old_val = ec_read_u8(ADDR); \
390 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \
391 return -EINVAL; \
392 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \
393 return count; \
394}
395
396SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME)
397SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM)
398SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN)
399SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN)
400SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY)
401SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE)
402
403
404/* General hwmon interface */
405static ssize_t hwmon_name_show(struct device *dev,
406 struct device_attribute *attr, char *buf)
120{ 407{
121 int ret; 408 return sprintf(buf, "%s\n", DRIVER_NAME);
409}
122 410
123 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
124 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
125 (void *) WLAN_MASK);
126 if (!wifi_rfkill)
127 return -ENOMEM;
128 411
129 ret = rfkill_register(wifi_rfkill); 412/* Fan control interface */
130 if (ret) 413static ssize_t pwm_enable_show(struct device *dev,
131 goto err_wifi; 414 struct device_attribute *attr, char *buf)
415{
416 struct compal_data *data = dev_get_drvdata(dev);
417 return sprintf(buf, "%d\n", data->pwm_enable);
418}
132 419
133 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev, 420static ssize_t pwm_enable_store(struct device *dev,
134 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops, 421 struct device_attribute *attr, const char *buf, size_t count)
135 (void *) BT_MASK); 422{
136 if (!bt_rfkill) { 423 struct compal_data *data = dev_get_drvdata(dev);
137 ret = -ENOMEM; 424 long val;
138 goto err_allocate_bt; 425 int err;
426 err = strict_strtol(buf, 10, &val);
427 if (err)
428 return err;
429 if (val < 0)
430 return -EINVAL;
431
432 data->pwm_enable = val;
433
434 switch (val) {
435 case 0: /* Full speed */
436 pwm_enable_control();
437 set_pwm(255);
438 break;
439 case 1: /* As set by pwm1 */
440 pwm_enable_control();
441 set_pwm(data->curr_pwm);
442 break;
443 default: /* Control by motherboard */
444 pwm_disable_control();
445 break;
139 } 446 }
140 ret = rfkill_register(bt_rfkill);
141 if (ret)
142 goto err_register_bt;
143 447
144 return 0; 448 return count;
449}
145 450
146err_register_bt: 451static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
147 rfkill_destroy(bt_rfkill); 452 char *buf)
453{
454 struct compal_data *data = dev_get_drvdata(dev);
455 return sprintf(buf, "%hhu\n", data->curr_pwm);
456}
148 457
149err_allocate_bt: 458static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
150 rfkill_unregister(wifi_rfkill); 459 const char *buf, size_t count)
460{
461 struct compal_data *data = dev_get_drvdata(dev);
462 long val;
463 int err;
464 err = strict_strtol(buf, 10, &val);
465 if (err)
466 return err;
467 if (val < 0 || val > 255)
468 return -EINVAL;
151 469
152err_wifi: 470 data->curr_pwm = val;
153 rfkill_destroy(wifi_rfkill);
154 471
155 return ret; 472 if (data->pwm_enable != 1)
473 return count;
474 set_pwm(val);
475
476 return count;
156} 477}
157 478
158/* Backlight device stuff */ 479static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
480 char *buf)
481{
482 return sprintf(buf, "%d\n", get_fan_rpm());
483}
159 484
160static int bl_get_brightness(struct backlight_device *b) 485
486/* Temperature interface */
487#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \
488static ssize_t temp_##POSTFIX(struct device *dev, \
489 struct device_attribute *attr, char *buf) \
490{ \
491 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \
492} \
493static ssize_t label_##POSTFIX(struct device *dev, \
494 struct device_attribute *attr, char *buf) \
495{ \
496 return sprintf(buf, "%s\n", LABEL); \
497}
498
499/* Labels as in service guide */
500TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP");
501TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL");
502TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS");
503TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge");
504TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP");
505TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90");
506
507
508/* Power supply interface */
509static int bat_status(void)
510{
511 u8 status0 = ec_read_u8(BAT_STATUS0);
512 u8 status1 = ec_read_u8(BAT_STATUS1);
513
514 if (status0 & BAT_S0_CHARGING)
515 return POWER_SUPPLY_STATUS_CHARGING;
516 if (status0 & BAT_S0_DISCHARGE)
517 return POWER_SUPPLY_STATUS_DISCHARGING;
518 if (status1 & BAT_S1_FULL)
519 return POWER_SUPPLY_STATUS_FULL;
520 return POWER_SUPPLY_STATUS_NOT_CHARGING;
521}
522
523static int bat_health(void)
161{ 524{
162 return get_lcd_level(); 525 u8 status = ec_read_u8(BAT_STOP_CHARGE1);
526
527 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE)
528 return POWER_SUPPLY_HEALTH_OVERHEAT;
529 if (status & BAT_STOP_CHRG1_OVERVOLTAGE)
530 return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
531 if (status & BAT_STOP_CHRG1_BAD_CELL)
532 return POWER_SUPPLY_HEALTH_DEAD;
533 if (status & BAT_STOP_CHRG1_COMM_FAIL)
534 return POWER_SUPPLY_HEALTH_UNKNOWN;
535 return POWER_SUPPLY_HEALTH_GOOD;
163} 536}
164 537
538static int bat_is_present(void)
539{
540 u8 status = ec_read_u8(BAT_STATUS2);
541 return ((status & BAT_S1_EXISTS) != 0);
542}
165 543
166static int bl_update_status(struct backlight_device *b) 544static int bat_technology(void)
167{ 545{
168 return set_lcd_level(b->props.brightness); 546 u8 status = ec_read_u8(BAT_STATUS1);
547
548 if (status & BAT_S1_LiION_OR_NiMH)
549 return POWER_SUPPLY_TECHNOLOGY_LION;
550 return POWER_SUPPLY_TECHNOLOGY_NiMH;
169} 551}
170 552
171static struct backlight_ops compalbl_ops = { 553static int bat_capacity_level(void)
172 .get_brightness = bl_get_brightness, 554{
173 .update_status = bl_update_status, 555 u8 status0 = ec_read_u8(BAT_STATUS0);
174}; 556 u8 status1 = ec_read_u8(BAT_STATUS1);
557 u8 status2 = ec_read_u8(BAT_STATUS2);
558
559 if (status0 & BAT_S0_DISCHRG_CRITICAL
560 || status1 & BAT_S1_EMPTY
561 || status2 & BAT_S2_LOW_LOW)
562 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
563 if (status0 & BAT_S0_LOW)
564 return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
565 if (status1 & BAT_S1_FULL)
566 return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
567 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
568}
569
570static int bat_get_property(struct power_supply *psy,
571 enum power_supply_property psp,
572 union power_supply_propval *val)
573{
574 struct compal_data *data;
575 data = container_of(psy, struct compal_data, psy);
576
577 switch (psp) {
578 case POWER_SUPPLY_PROP_STATUS:
579 val->intval = bat_status();
580 break;
581 case POWER_SUPPLY_PROP_HEALTH:
582 val->intval = bat_health();
583 break;
584 case POWER_SUPPLY_PROP_PRESENT:
585 val->intval = bat_is_present();
586 break;
587 case POWER_SUPPLY_PROP_TECHNOLOGY:
588 val->intval = bat_technology();
589 break;
590 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */
591 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
592 break;
593 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
594 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
595 break;
596 case POWER_SUPPLY_PROP_CURRENT_NOW:
597 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000;
598 break;
599 case POWER_SUPPLY_PROP_CURRENT_AVG:
600 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000;
601 break;
602 case POWER_SUPPLY_PROP_POWER_NOW:
603 val->intval = ec_read_u8(BAT_POWER) * 1000000;
604 break;
605 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
606 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
607 break;
608 case POWER_SUPPLY_PROP_CHARGE_NOW:
609 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
610 break;
611 case POWER_SUPPLY_PROP_CAPACITY:
612 val->intval = ec_read_u8(BAT_CAPACITY);
613 break;
614 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
615 val->intval = bat_capacity_level();
616 break;
617 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing
618 * the number of degrees, whereas BAT_TEMP is somewhat more
619 * complicated. It looks like this is a negative nember with a
620 * 100/256 divider and an offset of 222. Both were determined
621 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */
622 case POWER_SUPPLY_PROP_TEMP:
623 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8;
624 break;
625 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */
626 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10;
627 break;
628 /* Neither the model name nor manufacturer name work for me. */
629 case POWER_SUPPLY_PROP_MODEL_NAME:
630 val->strval = data->bat_model_name;
631 break;
632 case POWER_SUPPLY_PROP_MANUFACTURER:
633 val->strval = data->bat_manufacturer_name;
634 break;
635 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
636 val->strval = data->bat_serial_number;
637 break;
638 default:
639 break;
640 }
641 return 0;
642}
175 643
176static struct backlight_device *compalbl_device;
177 644
178 645
646
647
648/* ============== */
649/* Driver Globals */
650/* ============== */
651static DEVICE_ATTR(wake_up_pme,
652 0644, wake_up_pme_show, wake_up_pme_store);
653static DEVICE_ATTR(wake_up_modem,
654 0644, wake_up_modem_show, wake_up_modem_store);
655static DEVICE_ATTR(wake_up_lan,
656 0644, wake_up_lan_show, wake_up_lan_store);
657static DEVICE_ATTR(wake_up_wlan,
658 0644, wake_up_wlan_show, wake_up_wlan_store);
659static DEVICE_ATTR(wake_up_key,
660 0644, wake_up_key_show, wake_up_key_store);
661static DEVICE_ATTR(wake_up_mouse,
662 0644, wake_up_mouse_show, wake_up_mouse_store);
663
664static SENSOR_DEVICE_ATTR(name, S_IRUGO, hwmon_name_show, NULL, 1);
665static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL, 1);
666static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL, 1);
667static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL, 1);
668static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL, 1);
669static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL, 1);
670static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL, 1);
671static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL, 1);
672static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL, 1);
673static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL, 1);
674static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL, 1);
675static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL, 1);
676static SENSOR_DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL, 1);
677static SENSOR_DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL, 1);
678static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store, 1);
679static SENSOR_DEVICE_ATTR(pwm1_enable,
680 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store, 0);
681
682static struct attribute *compal_attributes[] = {
683 &dev_attr_wake_up_pme.attr,
684 &dev_attr_wake_up_modem.attr,
685 &dev_attr_wake_up_lan.attr,
686 &dev_attr_wake_up_wlan.attr,
687 &dev_attr_wake_up_key.attr,
688 &dev_attr_wake_up_mouse.attr,
689 /* Maybe put the sensor-stuff in a separate hwmon-driver? That way,
690 * the hwmon sysfs won't be cluttered with the above files. */
691 &sensor_dev_attr_name.dev_attr.attr,
692 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
693 &sensor_dev_attr_pwm1.dev_attr.attr,
694 &sensor_dev_attr_fan1_input.dev_attr.attr,
695 &sensor_dev_attr_temp1_input.dev_attr.attr,
696 &sensor_dev_attr_temp2_input.dev_attr.attr,
697 &sensor_dev_attr_temp3_input.dev_attr.attr,
698 &sensor_dev_attr_temp4_input.dev_attr.attr,
699 &sensor_dev_attr_temp5_input.dev_attr.attr,
700 &sensor_dev_attr_temp6_input.dev_attr.attr,
701 &sensor_dev_attr_temp1_label.dev_attr.attr,
702 &sensor_dev_attr_temp2_label.dev_attr.attr,
703 &sensor_dev_attr_temp3_label.dev_attr.attr,
704 &sensor_dev_attr_temp4_label.dev_attr.attr,
705 &sensor_dev_attr_temp5_label.dev_attr.attr,
706 &sensor_dev_attr_temp6_label.dev_attr.attr,
707 NULL
708};
709
710static struct attribute_group compal_attribute_group = {
711 .attrs = compal_attributes
712};
713
714static int __devinit compal_probe(struct platform_device *);
715static int __devexit compal_remove(struct platform_device *);
179static struct platform_driver compal_driver = { 716static struct platform_driver compal_driver = {
180 .driver = { 717 .driver = {
181 .name = "compal-laptop", 718 .name = DRIVER_NAME,
182 .owner = THIS_MODULE, 719 .owner = THIS_MODULE,
183 } 720 },
721 .probe = compal_probe,
722 .remove = __devexit_p(compal_remove)
184}; 723};
185 724
186/* Initialization */ 725static enum power_supply_property compal_bat_properties[] = {
726 POWER_SUPPLY_PROP_STATUS,
727 POWER_SUPPLY_PROP_HEALTH,
728 POWER_SUPPLY_PROP_PRESENT,
729 POWER_SUPPLY_PROP_TECHNOLOGY,
730 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
731 POWER_SUPPLY_PROP_VOLTAGE_NOW,
732 POWER_SUPPLY_PROP_CURRENT_NOW,
733 POWER_SUPPLY_PROP_CURRENT_AVG,
734 POWER_SUPPLY_PROP_POWER_NOW,
735 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
736 POWER_SUPPLY_PROP_CHARGE_NOW,
737 POWER_SUPPLY_PROP_CAPACITY,
738 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
739 POWER_SUPPLY_PROP_TEMP,
740 POWER_SUPPLY_PROP_TEMP_AMBIENT,
741 POWER_SUPPLY_PROP_MODEL_NAME,
742 POWER_SUPPLY_PROP_MANUFACTURER,
743 POWER_SUPPLY_PROP_SERIAL_NUMBER,
744};
745
746static struct backlight_device *compalbl_device;
747
748static struct platform_device *compal_device;
749
750static struct rfkill *wifi_rfkill;
751static struct rfkill *bt_rfkill;
752
753
754
755
756
757/* =================================== */
758/* Initialization & clean-up functions */
759/* =================================== */
187 760
188static int dmi_check_cb(const struct dmi_system_id *id) 761static int dmi_check_cb(const struct dmi_system_id *id)
189{ 762{
190 printk(KERN_INFO "compal-laptop: Identified laptop model '%s'.\n", 763 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n",
191 id->ident); 764 id->ident);
765 extra_features = false;
766 return 0;
767}
192 768
769static int dmi_check_cb_extra(const struct dmi_system_id *id)
770{
771 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s', "
772 "enabling extra features\n",
773 id->ident);
774 extra_features = true;
193 return 0; 775 return 0;
194} 776}
195 777
@@ -274,27 +856,106 @@ static struct dmi_system_id __initdata compal_dmi_table[] = {
274 }, 856 },
275 .callback = dmi_check_cb 857 .callback = dmi_check_cb
276 }, 858 },
277 859 {
860 .ident = "JHL90",
861 .matches = {
862 DMI_MATCH(DMI_BOARD_NAME, "JHL90"),
863 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
864 },
865 .callback = dmi_check_cb_extra
866 },
278 { } 867 { }
279}; 868};
280 869
870static void initialize_power_supply_data(struct compal_data *data)
871{
872 data->psy.name = DRIVER_NAME;
873 data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
874 data->psy.properties = compal_bat_properties;
875 data->psy.num_properties = ARRAY_SIZE(compal_bat_properties);
876 data->psy.get_property = bat_get_property;
877
878 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
879 data->bat_manufacturer_name,
880 BAT_MANUFACTURER_NAME_LEN);
881 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0;
882
883 ec_read_sequence(BAT_MODEL_NAME_ADDR,
884 data->bat_model_name,
885 BAT_MODEL_NAME_LEN);
886 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0;
887
888 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d",
889 ec_read_u16(BAT_SERIAL_NUMBER_ADDR));
890}
891
892static void initialize_fan_control_data(struct compal_data *data)
893{
894 data->pwm_enable = 2; /* Keep motherboard in control for now */
895 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception
896 if we take over... */
897}
898
899static int setup_rfkill(void)
900{
901 int ret;
902
903 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev,
904 RFKILL_TYPE_WLAN, &compal_rfkill_ops,
905 (void *) WIRELESS_WLAN);
906 if (!wifi_rfkill)
907 return -ENOMEM;
908
909 ret = rfkill_register(wifi_rfkill);
910 if (ret)
911 goto err_wifi;
912
913 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev,
914 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops,
915 (void *) WIRELESS_BT);
916 if (!bt_rfkill) {
917 ret = -ENOMEM;
918 goto err_allocate_bt;
919 }
920 ret = rfkill_register(bt_rfkill);
921 if (ret)
922 goto err_register_bt;
923
924 return 0;
925
926err_register_bt:
927 rfkill_destroy(bt_rfkill);
928
929err_allocate_bt:
930 rfkill_unregister(wifi_rfkill);
931
932err_wifi:
933 rfkill_destroy(wifi_rfkill);
934
935 return ret;
936}
937
281static int __init compal_init(void) 938static int __init compal_init(void)
282{ 939{
283 int ret; 940 int ret;
284 941
285 if (acpi_disabled) 942 if (acpi_disabled) {
943 printk(KERN_ERR DRIVER_NAME": ACPI needs to be enabled for "
944 "this driver to work!\n");
286 return -ENODEV; 945 return -ENODEV;
946 }
287 947
288 if (!force && !dmi_check_system(compal_dmi_table)) 948 if (!force && !dmi_check_system(compal_dmi_table)) {
949 printk(KERN_ERR DRIVER_NAME": Motherboard not recognized (You "
950 "could try the module's force-parameter)");
289 return -ENODEV; 951 return -ENODEV;
290 952 }
291 /* Register backlight stuff */
292 953
293 if (!acpi_video_backlight_support()) { 954 if (!acpi_video_backlight_support()) {
294 struct backlight_properties props; 955 struct backlight_properties props;
295 memset(&props, 0, sizeof(struct backlight_properties)); 956 memset(&props, 0, sizeof(struct backlight_properties));
296 props.max_brightness = COMPAL_LCD_LEVEL_MAX - 1; 957 props.max_brightness = BACKLIGHT_LEVEL_MAX;
297 compalbl_device = backlight_device_register("compal-laptop", 958 compalbl_device = backlight_device_register(DRIVER_NAME,
298 NULL, NULL, 959 NULL, NULL,
299 &compalbl_ops, 960 &compalbl_ops,
300 &props); 961 &props);
@@ -304,67 +965,122 @@ static int __init compal_init(void)
304 965
305 ret = platform_driver_register(&compal_driver); 966 ret = platform_driver_register(&compal_driver);
306 if (ret) 967 if (ret)
307 goto fail_backlight; 968 goto err_backlight;
308 969
309 /* Register platform stuff */ 970 compal_device = platform_device_alloc(DRIVER_NAME, -1);
310
311 compal_device = platform_device_alloc("compal-laptop", -1);
312 if (!compal_device) { 971 if (!compal_device) {
313 ret = -ENOMEM; 972 ret = -ENOMEM;
314 goto fail_platform_driver; 973 goto err_platform_driver;
315 } 974 }
316 975
317 ret = platform_device_add(compal_device); 976 ret = platform_device_add(compal_device); /* This calls compal_probe */
318 if (ret) 977 if (ret)
319 goto fail_platform_device; 978 goto err_platform_device;
320 979
321 ret = setup_rfkill(); 980 ret = setup_rfkill();
322 if (ret) 981 if (ret)
323 goto fail_rfkill; 982 goto err_rfkill;
324
325 printk(KERN_INFO "compal-laptop: driver "COMPAL_DRIVER_VERSION
326 " successfully loaded.\n");
327 983
984 printk(KERN_INFO DRIVER_NAME": Driver "DRIVER_VERSION
985 " successfully loaded\n");
328 return 0; 986 return 0;
329 987
330fail_rfkill: 988err_rfkill:
331 platform_device_del(compal_device); 989 platform_device_del(compal_device);
332 990
333fail_platform_device: 991err_platform_device:
334
335 platform_device_put(compal_device); 992 platform_device_put(compal_device);
336 993
337fail_platform_driver: 994err_platform_driver:
338
339 platform_driver_unregister(&compal_driver); 995 platform_driver_unregister(&compal_driver);
340 996
341fail_backlight: 997err_backlight:
342
343 backlight_device_unregister(compalbl_device); 998 backlight_device_unregister(compalbl_device);
344 999
345 return ret; 1000 return ret;
346} 1001}
347 1002
348static void __exit compal_cleanup(void) 1003static int __devinit compal_probe(struct platform_device *pdev)
349{ 1004{
1005 int err;
1006 struct compal_data *data;
1007
1008 if (!extra_features)
1009 return 0;
1010
1011 /* Fan control */
1012 data = kzalloc(sizeof(struct compal_data), GFP_KERNEL);
1013 if (!data)
1014 return -ENOMEM;
1015
1016 initialize_fan_control_data(data);
1017
1018 err = sysfs_create_group(&pdev->dev.kobj, &compal_attribute_group);
1019 if (err)
1020 return err;
1021
1022 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1023 if (IS_ERR(data->hwmon_dev)) {
1024 err = PTR_ERR(data->hwmon_dev);
1025 sysfs_remove_group(&pdev->dev.kobj,
1026 &compal_attribute_group);
1027 kfree(data);
1028 return err;
1029 }
1030
1031 /* Power supply */
1032 initialize_power_supply_data(data);
1033 power_supply_register(&compal_device->dev, &data->psy);
1034
1035 platform_set_drvdata(pdev, data);
1036
1037 return 0;
1038}
350 1039
1040static void __exit compal_cleanup(void)
1041{
351 platform_device_unregister(compal_device); 1042 platform_device_unregister(compal_device);
352 platform_driver_unregister(&compal_driver); 1043 platform_driver_unregister(&compal_driver);
353 backlight_device_unregister(compalbl_device); 1044 backlight_device_unregister(compalbl_device);
354 rfkill_unregister(wifi_rfkill); 1045 rfkill_unregister(wifi_rfkill);
355 rfkill_destroy(wifi_rfkill);
356 rfkill_unregister(bt_rfkill); 1046 rfkill_unregister(bt_rfkill);
1047 rfkill_destroy(wifi_rfkill);
357 rfkill_destroy(bt_rfkill); 1048 rfkill_destroy(bt_rfkill);
358 1049
359 printk(KERN_INFO "compal-laptop: driver unloaded.\n"); 1050 printk(KERN_INFO DRIVER_NAME": Driver unloaded\n");
360} 1051}
361 1052
1053static int __devexit compal_remove(struct platform_device *pdev)
1054{
1055 struct compal_data *data;
1056
1057 if (!extra_features)
1058 return 0;
1059
1060 printk(KERN_INFO DRIVER_NAME": Unloading: resetting fan control "
1061 "to motherboard\n");
1062 pwm_disable_control();
1063
1064 data = platform_get_drvdata(pdev);
1065 hwmon_device_unregister(data->hwmon_dev);
1066 power_supply_unregister(&data->psy);
1067
1068 platform_set_drvdata(pdev, NULL);
1069 kfree(data);
1070
1071 sysfs_remove_group(&pdev->dev.kobj, &compal_attribute_group);
1072
1073 return 0;
1074}
1075
1076
362module_init(compal_init); 1077module_init(compal_init);
363module_exit(compal_cleanup); 1078module_exit(compal_cleanup);
364 1079
365MODULE_AUTHOR("Cezary Jackiewicz"); 1080MODULE_AUTHOR("Cezary Jackiewicz");
1081MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
366MODULE_DESCRIPTION("Compal Laptop Support"); 1082MODULE_DESCRIPTION("Compal Laptop Support");
367MODULE_VERSION(COMPAL_DRIVER_VERSION); 1083MODULE_VERSION(DRIVER_VERSION);
368MODULE_LICENSE("GPL"); 1084MODULE_LICENSE("GPL");
369 1085
370MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*"); 1086MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*");
@@ -372,6 +1088,7 @@ MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*");
372MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*"); 1088MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*");
373MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*"); 1089MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*");
374MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*"); 1090MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*");
1091MODULE_ALIAS("dmi:*:rnJHL90:rvrREFERENCE:*");
375MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*"); 1092MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*");
376MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*"); 1093MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*");
377MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*"); 1094MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*");
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 04:35:01 -0500