Commit | Line | Data |
---|---|---|
078abcf9 RP |
1 | /* |
2 | * Battery and Power Management code for the Sharp SL-C7xx and SL-Cxx00 | |
3 | * series of PDAs | |
4 | * | |
5 | * Copyright (c) 2004-2005 Richard Purdie | |
6 | * | |
7 | * Based on code written by Sharp for 2.4 kernels | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | */ | |
14 | ||
15 | #undef DEBUG | |
16 | ||
17 | #include <linux/module.h> | |
078abcf9 | 18 | #include <linux/kernel.h> |
078abcf9 | 19 | #include <linux/interrupt.h> |
c5e1ae97 | 20 | #include <linux/platform_device.h> |
61fde514 | 21 | #include <linux/apm-emulation.h> |
78731d33 | 22 | #include <linux/timer.h> |
78731d33 DES |
23 | #include <linux/delay.h> |
24 | #include <linux/leds.h> | |
25 | #include <linux/suspend.h> | |
d5af2778 | 26 | #include <linux/gpio.h> |
078abcf9 | 27 | |
078abcf9 | 28 | #include <asm/mach-types.h> |
a09e64fb | 29 | #include <mach/pm.h> |
78731d33 | 30 | #include <mach/pxa2xx-regs.h> |
78731d33 | 31 | #include <mach/regs-rtc.h> |
78731d33 DES |
32 | #include <mach/sharpsl_pm.h> |
33 | ||
34 | /* | |
35 | * Constants | |
36 | */ | |
37 | #define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ | |
38 | #define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ | |
39 | #define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ | |
40 | #define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ | |
41 | ||
42 | #define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ | |
43 | #define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ | |
44 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ | |
45 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ | |
46 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ | |
47 | #define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ | |
48 | #define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ | |
49 | #define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ | |
50 | ||
51 | /* | |
52 | * Prototypes | |
53 | */ | |
54 | #ifdef CONFIG_PM | |
55 | static int sharpsl_off_charge_battery(void); | |
56 | static int sharpsl_check_battery_voltage(void); | |
57 | static int sharpsl_fatal_check(void); | |
58 | #endif | |
59 | static int sharpsl_check_battery_temp(void); | |
60 | static int sharpsl_ac_check(void); | |
61 | static int sharpsl_average_value(int ad); | |
62 | static void sharpsl_average_clear(void); | |
63 | static void sharpsl_charge_toggle(struct work_struct *private_); | |
64 | static void sharpsl_battery_thread(struct work_struct *private_); | |
65 | ||
66 | ||
67 | /* | |
68 | * Variables | |
69 | */ | |
70 | struct sharpsl_pm_status sharpsl_pm; | |
d48898a3 DES |
71 | static DECLARE_DELAYED_WORK(toggle_charger, sharpsl_charge_toggle); |
72 | static DECLARE_DELAYED_WORK(sharpsl_bat, sharpsl_battery_thread); | |
78731d33 DES |
73 | DEFINE_LED_TRIGGER(sharpsl_charge_led_trigger); |
74 | ||
75 | ||
078abcf9 | 76 | |
0ba01ebc | 77 | struct battery_thresh sharpsl_battery_levels_acin[] = { |
078abcf9 RP |
78 | { 213, 100}, |
79 | { 212, 98}, | |
80 | { 211, 95}, | |
81 | { 210, 93}, | |
82 | { 209, 90}, | |
83 | { 208, 88}, | |
84 | { 207, 85}, | |
85 | { 206, 83}, | |
86 | { 205, 80}, | |
87 | { 204, 78}, | |
88 | { 203, 75}, | |
89 | { 202, 73}, | |
90 | { 201, 70}, | |
91 | { 200, 68}, | |
92 | { 199, 65}, | |
93 | { 198, 63}, | |
94 | { 197, 60}, | |
95 | { 196, 58}, | |
96 | { 195, 55}, | |
97 | { 194, 53}, | |
98 | { 193, 50}, | |
99 | { 192, 48}, | |
100 | { 192, 45}, | |
101 | { 191, 43}, | |
102 | { 191, 40}, | |
103 | { 190, 38}, | |
104 | { 190, 35}, | |
105 | { 189, 33}, | |
106 | { 188, 30}, | |
107 | { 187, 28}, | |
108 | { 186, 25}, | |
109 | { 185, 23}, | |
110 | { 184, 20}, | |
111 | { 183, 18}, | |
112 | { 182, 15}, | |
113 | { 181, 13}, | |
114 | { 180, 10}, | |
115 | { 179, 8}, | |
116 | { 178, 5}, | |
117 | { 0, 0}, | |
118 | }; | |
119 | ||
0ba01ebc | 120 | struct battery_thresh sharpsl_battery_levels_noac[] = { |
078abcf9 RP |
121 | { 213, 100}, |
122 | { 212, 98}, | |
123 | { 211, 95}, | |
124 | { 210, 93}, | |
125 | { 209, 90}, | |
126 | { 208, 88}, | |
127 | { 207, 85}, | |
128 | { 206, 83}, | |
129 | { 205, 80}, | |
130 | { 204, 78}, | |
131 | { 203, 75}, | |
132 | { 202, 73}, | |
133 | { 201, 70}, | |
134 | { 200, 68}, | |
135 | { 199, 65}, | |
136 | { 198, 63}, | |
137 | { 197, 60}, | |
138 | { 196, 58}, | |
139 | { 195, 55}, | |
140 | { 194, 53}, | |
141 | { 193, 50}, | |
142 | { 192, 48}, | |
143 | { 191, 45}, | |
144 | { 190, 43}, | |
145 | { 189, 40}, | |
146 | { 188, 38}, | |
147 | { 187, 35}, | |
148 | { 186, 33}, | |
149 | { 185, 30}, | |
150 | { 184, 28}, | |
151 | { 183, 25}, | |
152 | { 182, 23}, | |
153 | { 181, 20}, | |
154 | { 180, 18}, | |
155 | { 179, 15}, | |
156 | { 178, 13}, | |
157 | { 177, 10}, | |
158 | { 176, 8}, | |
159 | { 175, 5}, | |
160 | { 0, 0}, | |
161 | }; | |
162 | ||
25af3b0f | 163 | /* MAX1111 Commands */ |
b64b0b76 PM |
164 | #define MAXCTRL_PD0 (1u << 0) |
165 | #define MAXCTRL_PD1 (1u << 1) | |
166 | #define MAXCTRL_SGL (1u << 2) | |
167 | #define MAXCTRL_UNI (1u << 3) | |
25af3b0f | 168 | #define MAXCTRL_SEL_SH 4 |
b64b0b76 | 169 | #define MAXCTRL_STR (1u << 7) |
25af3b0f | 170 | |
078abcf9 RP |
171 | /* |
172 | * Read MAX1111 ADC | |
173 | */ | |
b7557de4 | 174 | int sharpsl_pm_pxa_read_max1111(int channel) |
078abcf9 | 175 | { |
b64b0b76 PM |
176 | /* Ugly, better move this function into another module */ |
177 | if (machine_is_tosa()) | |
f8703dc8 RP |
178 | return 0; |
179 | ||
25af3b0f EM |
180 | extern int max1111_read_channel(int); |
181 | ||
f16177c2 EM |
182 | /* max1111 accepts channels from 0-3, however, |
183 | * it is encoded from 0-7 here in the code. | |
184 | */ | |
185 | return max1111_read_channel(channel >> 1); | |
078abcf9 RP |
186 | } |
187 | ||
78731d33 DES |
188 | static int get_percentage(int voltage) |
189 | { | |
190 | int i = sharpsl_pm.machinfo->bat_levels - 1; | |
191 | int bl_status = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0; | |
192 | struct battery_thresh *thresh; | |
193 | ||
194 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
195 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_acin_bl : sharpsl_pm.machinfo->bat_levels_acin; | |
196 | else | |
197 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_noac_bl : sharpsl_pm.machinfo->bat_levels_noac; | |
198 | ||
199 | while (i > 0 && (voltage > thresh[i].voltage)) | |
200 | i--; | |
201 | ||
202 | return thresh[i].percentage; | |
203 | } | |
204 | ||
205 | static int get_apm_status(int voltage) | |
206 | { | |
207 | int low_thresh, high_thresh; | |
208 | ||
209 | if (sharpsl_pm.charge_mode == CHRG_ON) { | |
210 | high_thresh = sharpsl_pm.machinfo->status_high_acin; | |
211 | low_thresh = sharpsl_pm.machinfo->status_low_acin; | |
212 | } else { | |
213 | high_thresh = sharpsl_pm.machinfo->status_high_noac; | |
214 | low_thresh = sharpsl_pm.machinfo->status_low_noac; | |
215 | } | |
216 | ||
217 | if (voltage >= high_thresh) | |
218 | return APM_BATTERY_STATUS_HIGH; | |
219 | if (voltage >= low_thresh) | |
220 | return APM_BATTERY_STATUS_LOW; | |
221 | return APM_BATTERY_STATUS_CRITICAL; | |
222 | } | |
223 | ||
224 | void sharpsl_battery_kick(void) | |
225 | { | |
226 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); | |
227 | } | |
228 | EXPORT_SYMBOL(sharpsl_battery_kick); | |
229 | ||
230 | ||
231 | static void sharpsl_battery_thread(struct work_struct *private_) | |
232 | { | |
b64b0b76 | 233 | int voltage, percent, apm_status, i; |
78731d33 DES |
234 | |
235 | if (!sharpsl_pm.machinfo) | |
236 | return; | |
237 | ||
238 | sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); | |
239 | ||
240 | /* Corgi cannot confirm when battery fully charged so periodically kick! */ | |
241 | if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON) | |
242 | && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) | |
243 | schedule_delayed_work(&toggle_charger, 0); | |
244 | ||
b64b0b76 | 245 | for (i = 0; i < 5; i++) { |
78731d33 | 246 | voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
b64b0b76 | 247 | if (voltage > 0) |
78731d33 | 248 | break; |
b64b0b76 PM |
249 | } |
250 | if (voltage <= 0) { | |
251 | voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; | |
252 | dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); | |
78731d33 DES |
253 | } |
254 | ||
255 | voltage = sharpsl_average_value(voltage); | |
256 | apm_status = get_apm_status(voltage); | |
257 | percent = get_percentage(voltage); | |
258 | ||
259 | /* At low battery voltages, the voltage has a tendency to start | |
b64b0b76 PM |
260 | creeping back up so we try to avoid this here */ |
261 | if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) | |
262 | || (apm_status == APM_BATTERY_STATUS_HIGH) | |
263 | || percent <= sharpsl_pm.battstat.mainbat_percent) { | |
78731d33 DES |
264 | sharpsl_pm.battstat.mainbat_voltage = voltage; |
265 | sharpsl_pm.battstat.mainbat_status = apm_status; | |
266 | sharpsl_pm.battstat.mainbat_percent = percent; | |
267 | } | |
268 | ||
269 | dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage, | |
270 | sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); | |
271 | ||
78731d33 DES |
272 | /* Suspend if critical battery level */ |
273 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
b64b0b76 PM |
274 | && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) |
275 | && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { | |
78731d33 DES |
276 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; |
277 | dev_err(sharpsl_pm.dev, "Fatal Off\n"); | |
278 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
279 | } | |
280 | ||
281 | schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); | |
282 | } | |
283 | ||
284 | void sharpsl_pm_led(int val) | |
285 | { | |
286 | if (val == SHARPSL_LED_ERROR) { | |
287 | dev_err(sharpsl_pm.dev, "Charging Error!\n"); | |
288 | } else if (val == SHARPSL_LED_ON) { | |
289 | dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); | |
290 | led_trigger_event(sharpsl_charge_led_trigger, LED_FULL); | |
291 | } else { | |
292 | dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); | |
293 | led_trigger_event(sharpsl_charge_led_trigger, LED_OFF); | |
294 | } | |
295 | } | |
296 | ||
297 | static void sharpsl_charge_on(void) | |
298 | { | |
299 | dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); | |
300 | ||
301 | sharpsl_pm.full_count = 0; | |
302 | sharpsl_pm.charge_mode = CHRG_ON; | |
303 | schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); | |
304 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); | |
305 | } | |
306 | ||
307 | static void sharpsl_charge_off(void) | |
308 | { | |
309 | dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); | |
310 | ||
311 | sharpsl_pm.machinfo->charge(0); | |
312 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
313 | sharpsl_pm.charge_mode = CHRG_OFF; | |
314 | ||
315 | schedule_delayed_work(&sharpsl_bat, 0); | |
316 | } | |
317 | ||
318 | static void sharpsl_charge_error(void) | |
319 | { | |
320 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
321 | sharpsl_pm.machinfo->charge(0); | |
322 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
323 | } | |
324 | ||
325 | static void sharpsl_charge_toggle(struct work_struct *private_) | |
326 | { | |
b64b0b76 | 327 | dev_dbg(sharpsl_pm.dev, "Toggling Charger at time: %lx\n", jiffies); |
78731d33 DES |
328 | |
329 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
330 | sharpsl_charge_off(); | |
331 | return; | |
332 | } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { | |
333 | sharpsl_charge_error(); | |
334 | return; | |
335 | } | |
336 | ||
337 | sharpsl_pm_led(SHARPSL_LED_ON); | |
338 | sharpsl_pm.machinfo->charge(0); | |
339 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
340 | sharpsl_pm.machinfo->charge(1); | |
341 | ||
342 | sharpsl_pm.charge_start_time = jiffies; | |
343 | } | |
344 | ||
345 | static void sharpsl_ac_timer(unsigned long data) | |
346 | { | |
347 | int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
348 | ||
b64b0b76 | 349 | dev_dbg(sharpsl_pm.dev, "AC Status: %d\n", acin); |
78731d33 DES |
350 | |
351 | sharpsl_average_clear(); | |
352 | if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) | |
353 | sharpsl_charge_on(); | |
354 | else if (sharpsl_pm.charge_mode == CHRG_ON) | |
355 | sharpsl_charge_off(); | |
356 | ||
357 | schedule_delayed_work(&sharpsl_bat, 0); | |
358 | } | |
359 | ||
360 | ||
d48898a3 | 361 | static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id) |
78731d33 DES |
362 | { |
363 | /* Delay the event slightly to debounce */ | |
364 | /* Must be a smaller delay than the chrg_full_isr below */ | |
365 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
366 | ||
367 | return IRQ_HANDLED; | |
368 | } | |
369 | ||
370 | static void sharpsl_chrg_full_timer(unsigned long data) | |
371 | { | |
372 | dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); | |
373 | ||
374 | sharpsl_pm.full_count++; | |
375 | ||
376 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
377 | dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); | |
378 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
379 | sharpsl_charge_off(); | |
380 | } else if (sharpsl_pm.full_count < 2) { | |
381 | dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); | |
382 | schedule_delayed_work(&toggle_charger, 0); | |
383 | } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { | |
384 | dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); | |
385 | schedule_delayed_work(&toggle_charger, 0); | |
386 | } else { | |
387 | sharpsl_charge_off(); | |
388 | sharpsl_pm.charge_mode = CHRG_DONE; | |
389 | dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); | |
390 | } | |
391 | } | |
392 | ||
393 | /* Charging Finished Interrupt (Not present on Corgi) */ | |
394 | /* Can trigger at the same time as an AC status change so | |
395 | delay until after that has been processed */ | |
d48898a3 | 396 | static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id) |
78731d33 DES |
397 | { |
398 | if (sharpsl_pm.flags & SHARPSL_SUSPENDED) | |
399 | return IRQ_HANDLED; | |
400 | ||
401 | /* delay until after any ac interrupt */ | |
402 | mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); | |
403 | ||
404 | return IRQ_HANDLED; | |
405 | } | |
406 | ||
d48898a3 | 407 | static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id) |
78731d33 DES |
408 | { |
409 | int is_fatal = 0; | |
410 | ||
411 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { | |
412 | dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); | |
413 | is_fatal = 1; | |
414 | } | |
415 | ||
416 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { | |
417 | dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); | |
418 | is_fatal = 1; | |
419 | } | |
420 | ||
421 | if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { | |
422 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
423 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
424 | } | |
425 | ||
426 | return IRQ_HANDLED; | |
427 | } | |
428 | ||
429 | /* | |
430 | * Maintain an average of the last 10 readings | |
431 | */ | |
432 | #define SHARPSL_CNV_VALUE_NUM 10 | |
433 | static int sharpsl_ad_index; | |
434 | ||
435 | static void sharpsl_average_clear(void) | |
436 | { | |
437 | sharpsl_ad_index = 0; | |
438 | } | |
439 | ||
440 | static int sharpsl_average_value(int ad) | |
441 | { | |
442 | int i, ad_val = 0; | |
443 | static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; | |
444 | ||
445 | if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { | |
446 | sharpsl_ad_index = 0; | |
447 | return ad; | |
448 | } | |
449 | ||
450 | sharpsl_ad[sharpsl_ad_index] = ad; | |
451 | sharpsl_ad_index++; | |
452 | if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { | |
b64b0b76 | 453 | for (i = 0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) |
78731d33 DES |
454 | sharpsl_ad[i] = sharpsl_ad[i+1]; |
455 | sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; | |
456 | } | |
b64b0b76 | 457 | for (i = 0; i < sharpsl_ad_index; i++) |
78731d33 DES |
458 | ad_val += sharpsl_ad[i]; |
459 | ||
b64b0b76 | 460 | return ad_val / sharpsl_ad_index; |
78731d33 DES |
461 | } |
462 | ||
463 | /* | |
464 | * Take an array of 5 integers, remove the maximum and minimum values | |
465 | * and return the average. | |
466 | */ | |
467 | static int get_select_val(int *val) | |
468 | { | |
469 | int i, j, k, temp, sum = 0; | |
470 | ||
471 | /* Find MAX val */ | |
472 | temp = val[0]; | |
b64b0b76 PM |
473 | j = 0; |
474 | for (i = 1; i < 5; i++) { | |
78731d33 DES |
475 | if (temp < val[i]) { |
476 | temp = val[i]; | |
477 | j = i; | |
478 | } | |
479 | } | |
480 | ||
481 | /* Find MIN val */ | |
482 | temp = val[4]; | |
b64b0b76 PM |
483 | k = 4; |
484 | for (i = 3; i >= 0; i--) { | |
78731d33 DES |
485 | if (temp > val[i]) { |
486 | temp = val[i]; | |
487 | k = i; | |
488 | } | |
489 | } | |
490 | ||
b64b0b76 PM |
491 | for (i = 0; i < 5; i++) |
492 | if (i != j && i != k) | |
78731d33 DES |
493 | sum += val[i]; |
494 | ||
495 | dev_dbg(sharpsl_pm.dev, "Average: %d from values: %d, %d, %d, %d, %d\n", sum/3, val[0], val[1], val[2], val[3], val[4]); | |
496 | ||
b64b0b76 | 497 | return sum/3; |
78731d33 DES |
498 | } |
499 | ||
500 | static int sharpsl_check_battery_temp(void) | |
501 | { | |
502 | int val, i, buff[5]; | |
503 | ||
504 | /* Check battery temperature */ | |
b64b0b76 | 505 | for (i = 0; i < 5; i++) { |
78731d33 DES |
506 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); |
507 | sharpsl_pm.machinfo->measure_temp(1); | |
508 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
509 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); | |
510 | sharpsl_pm.machinfo->measure_temp(0); | |
511 | } | |
512 | ||
513 | val = get_select_val(buff); | |
514 | ||
515 | dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); | |
516 | if (val > sharpsl_pm.machinfo->charge_on_temp) { | |
517 | printk(KERN_WARNING "Not charging: temperature out of limits.\n"); | |
518 | return -1; | |
519 | } | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | #ifdef CONFIG_PM | |
525 | static int sharpsl_check_battery_voltage(void) | |
526 | { | |
527 | int val, i, buff[5]; | |
528 | ||
529 | /* disable charge, enable discharge */ | |
530 | sharpsl_pm.machinfo->charge(0); | |
531 | sharpsl_pm.machinfo->discharge(1); | |
532 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
533 | ||
534 | if (sharpsl_pm.machinfo->discharge1) | |
535 | sharpsl_pm.machinfo->discharge1(1); | |
536 | ||
537 | /* Check battery voltage */ | |
b64b0b76 | 538 | for (i = 0; i < 5; i++) { |
78731d33 DES |
539 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
540 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
541 | } | |
542 | ||
543 | if (sharpsl_pm.machinfo->discharge1) | |
544 | sharpsl_pm.machinfo->discharge1(0); | |
545 | ||
546 | sharpsl_pm.machinfo->discharge(0); | |
547 | ||
548 | val = get_select_val(buff); | |
549 | dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); | |
550 | ||
551 | if (val < sharpsl_pm.machinfo->charge_on_volt) | |
552 | return -1; | |
553 | ||
554 | return 0; | |
555 | } | |
556 | #endif | |
557 | ||
558 | static int sharpsl_ac_check(void) | |
559 | { | |
560 | int temp, i, buff[5]; | |
561 | ||
b64b0b76 | 562 | for (i = 0; i < 5; i++) { |
78731d33 DES |
563 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); |
564 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); | |
565 | } | |
566 | ||
567 | temp = get_select_val(buff); | |
b64b0b76 | 568 | dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n", temp); |
78731d33 DES |
569 | |
570 | if ((temp > sharpsl_pm.machinfo->charge_acin_high) || (temp < sharpsl_pm.machinfo->charge_acin_low)) { | |
b64b0b76 | 571 | dev_err(sharpsl_pm.dev, "Error: AC check failed: voltage %d.\n", temp); |
78731d33 DES |
572 | return -1; |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
578 | #ifdef CONFIG_PM | |
579 | static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) | |
580 | { | |
581 | sharpsl_pm.flags |= SHARPSL_SUSPENDED; | |
fe413ec3 TH |
582 | flush_delayed_work_sync(&toggle_charger); |
583 | flush_delayed_work_sync(&sharpsl_bat); | |
78731d33 DES |
584 | |
585 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
586 | sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; | |
587 | else | |
588 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | static int sharpsl_pm_resume(struct platform_device *pdev) | |
594 | { | |
595 | /* Clear the reset source indicators as they break the bootloader upon reboot */ | |
596 | RCSR = 0x0f; | |
597 | sharpsl_average_clear(); | |
598 | sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; | |
599 | sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
605 | { | |
b64b0b76 | 606 | dev_dbg(sharpsl_pm.dev, "Time is: %08x\n", RCNR); |
78731d33 | 607 | |
b64b0b76 | 608 | dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n", sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); |
78731d33 DES |
609 | /* not charging and AC-IN! */ |
610 | ||
611 | if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { | |
612 | dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); | |
613 | sharpsl_pm.charge_mode = CHRG_OFF; | |
614 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
615 | sharpsl_off_charge_battery(); | |
616 | } | |
617 | ||
618 | sharpsl_pm.machinfo->presuspend(); | |
619 | ||
620 | PEDR = 0xffffffff; /* clear it */ | |
621 | ||
622 | sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; | |
623 | if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { | |
624 | RTSR &= RTSR_ALE; | |
625 | RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; | |
b64b0b76 | 626 | dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n", RTAR); |
78731d33 DES |
627 | sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; |
628 | } else if (alarm_enable) { | |
629 | RTSR &= RTSR_ALE; | |
630 | RTAR = alarm_time; | |
b64b0b76 | 631 | dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n", RTAR); |
78731d33 DES |
632 | } else { |
633 | dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); | |
634 | } | |
635 | ||
636 | pxa_pm_enter(state); | |
637 | ||
638 | sharpsl_pm.machinfo->postsuspend(); | |
639 | ||
b64b0b76 | 640 | dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n", PEDR); |
78731d33 DES |
641 | } |
642 | ||
643 | static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
644 | { | |
b64b0b76 | 645 | if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable)) { |
78731d33 DES |
646 | if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { |
647 | dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); | |
648 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
649 | return 1; | |
650 | } | |
b64b0b76 | 651 | if (sharpsl_off_charge_battery()) { |
78731d33 DES |
652 | dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); |
653 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
654 | return 1; | |
655 | } | |
656 | dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); | |
657 | } | |
658 | ||
99f329a2 PM |
659 | if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || |
660 | (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL))) { | |
78731d33 DES |
661 | dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); |
662 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
663 | return 1; | |
664 | } | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | static int corgi_pxa_pm_enter(suspend_state_t state) | |
670 | { | |
671 | unsigned long alarm_time = RTAR; | |
672 | unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); | |
673 | ||
674 | dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); | |
675 | ||
676 | corgi_goto_sleep(alarm_time, alarm_status, state); | |
677 | ||
b64b0b76 | 678 | while (corgi_enter_suspend(alarm_time, alarm_status, state)) |
78731d33 DES |
679 | {} |
680 | ||
681 | if (sharpsl_pm.machinfo->earlyresume) | |
682 | sharpsl_pm.machinfo->earlyresume(); | |
683 | ||
684 | dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
689 | /* | |
690 | * Check for fatal battery errors | |
691 | * Fatal returns -1 | |
692 | */ | |
693 | static int sharpsl_fatal_check(void) | |
694 | { | |
695 | int buff[5], temp, i, acin; | |
696 | ||
697 | dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n"); | |
698 | ||
699 | /* Check AC-Adapter */ | |
700 | acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
701 | ||
702 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
703 | sharpsl_pm.machinfo->charge(0); | |
704 | udelay(100); | |
705 | sharpsl_pm.machinfo->discharge(1); /* enable discharge */ | |
706 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
707 | } | |
708 | ||
709 | if (sharpsl_pm.machinfo->discharge1) | |
710 | sharpsl_pm.machinfo->discharge1(1); | |
711 | ||
712 | /* Check battery : check inserting battery ? */ | |
b64b0b76 | 713 | for (i = 0; i < 5; i++) { |
78731d33 DES |
714 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
715 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
716 | } | |
717 | ||
718 | if (sharpsl_pm.machinfo->discharge1) | |
719 | sharpsl_pm.machinfo->discharge1(0); | |
720 | ||
721 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
722 | udelay(100); | |
723 | sharpsl_pm.machinfo->charge(1); | |
724 | sharpsl_pm.machinfo->discharge(0); | |
725 | } | |
726 | ||
727 | temp = get_select_val(buff); | |
728 | dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check: acin: %d, discharge voltage: %d, no discharge: %ld\n", acin, temp, sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT)); | |
729 | ||
730 | if ((acin && (temp < sharpsl_pm.machinfo->fatal_acin_volt)) || | |
731 | (!acin && (temp < sharpsl_pm.machinfo->fatal_noacin_volt))) | |
732 | return -1; | |
733 | return 0; | |
734 | } | |
735 | ||
736 | static int sharpsl_off_charge_error(void) | |
737 | { | |
738 | dev_err(sharpsl_pm.dev, "Offline Charger: Error occurred.\n"); | |
739 | sharpsl_pm.machinfo->charge(0); | |
740 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
741 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
742 | return 1; | |
743 | } | |
744 | ||
745 | /* | |
746 | * Charging Control while suspended | |
747 | * Return 1 - go straight to sleep | |
748 | * Return 0 - sleep or wakeup depending on other factors | |
749 | */ | |
750 | static int sharpsl_off_charge_battery(void) | |
751 | { | |
752 | int time; | |
753 | ||
754 | dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); | |
755 | ||
756 | if (sharpsl_pm.charge_mode == CHRG_OFF) { | |
757 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); | |
758 | ||
759 | /* AC Check */ | |
760 | if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) | |
761 | return sharpsl_off_charge_error(); | |
762 | ||
763 | /* Start Charging */ | |
764 | sharpsl_pm_led(SHARPSL_LED_ON); | |
765 | sharpsl_pm.machinfo->charge(0); | |
766 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
767 | sharpsl_pm.machinfo->charge(1); | |
768 | ||
769 | sharpsl_pm.charge_mode = CHRG_ON; | |
770 | sharpsl_pm.full_count = 0; | |
771 | ||
772 | return 1; | |
773 | } else if (sharpsl_pm.charge_mode != CHRG_ON) { | |
774 | return 1; | |
775 | } | |
776 | ||
777 | if (sharpsl_pm.full_count == 0) { | |
778 | int time; | |
779 | ||
780 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); | |
781 | ||
782 | if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) | |
783 | return sharpsl_off_charge_error(); | |
784 | ||
785 | sharpsl_pm.machinfo->charge(0); | |
786 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
787 | sharpsl_pm.machinfo->charge(1); | |
788 | sharpsl_pm.charge_mode = CHRG_ON; | |
789 | ||
790 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
791 | ||
792 | time = RCNR; | |
b64b0b76 | 793 | while (1) { |
78731d33 DES |
794 | /* Check if any wakeup event had occurred */ |
795 | if (sharpsl_pm.machinfo->charger_wakeup() != 0) | |
796 | return 0; | |
797 | /* Check for timeout */ | |
798 | if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) | |
799 | return 1; | |
800 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
801 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n"); | |
802 | sharpsl_pm.full_count++; | |
803 | sharpsl_pm.machinfo->charge(0); | |
804 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
805 | sharpsl_pm.machinfo->charge(1); | |
806 | return 1; | |
807 | } | |
808 | } | |
809 | } | |
810 | ||
811 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); | |
812 | ||
813 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
814 | ||
815 | time = RCNR; | |
b64b0b76 | 816 | while (1) { |
78731d33 | 817 | /* Check if any wakeup event had occurred */ |
b64b0b76 | 818 | if (sharpsl_pm.machinfo->charger_wakeup()) |
78731d33 DES |
819 | return 0; |
820 | /* Check for timeout */ | |
821 | if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { | |
822 | if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { | |
823 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); | |
824 | sharpsl_pm.full_count = 0; | |
825 | } | |
826 | sharpsl_pm.full_count++; | |
827 | return 1; | |
828 | } | |
829 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
830 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); | |
831 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
832 | sharpsl_pm.machinfo->charge(0); | |
833 | sharpsl_pm.charge_mode = CHRG_DONE; | |
834 | return 1; | |
835 | } | |
836 | } | |
837 | } | |
838 | #else | |
839 | #define sharpsl_pm_suspend NULL | |
840 | #define sharpsl_pm_resume NULL | |
841 | #endif | |
842 | ||
843 | static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
844 | { | |
b64b0b76 | 845 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_percent); |
78731d33 DES |
846 | } |
847 | ||
848 | static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
849 | { | |
b64b0b76 | 850 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_voltage); |
78731d33 DES |
851 | } |
852 | ||
853 | static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); | |
854 | static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); | |
855 | ||
856 | extern void (*apm_get_power_status)(struct apm_power_info *); | |
857 | ||
858 | static void sharpsl_apm_get_power_status(struct apm_power_info *info) | |
859 | { | |
860 | info->ac_line_status = sharpsl_pm.battstat.ac_status; | |
861 | ||
862 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
863 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
864 | else | |
865 | info->battery_status = sharpsl_pm.battstat.mainbat_status; | |
866 | ||
867 | info->battery_flag = (1 << info->battery_status); | |
868 | info->battery_life = sharpsl_pm.battstat.mainbat_percent; | |
869 | } | |
870 | ||
871 | #ifdef CONFIG_PM | |
2f55ac07 | 872 | static const struct platform_suspend_ops sharpsl_pm_ops = { |
51cdd928 PM |
873 | .prepare = pxa_pm_prepare, |
874 | .finish = pxa_pm_finish, | |
78731d33 DES |
875 | .enter = corgi_pxa_pm_enter, |
876 | .valid = suspend_valid_only_mem, | |
877 | }; | |
878 | #endif | |
879 | ||
91a99dfc | 880 | static int __devinit sharpsl_pm_probe(struct platform_device *pdev) |
78731d33 DES |
881 | { |
882 | int ret; | |
883 | ||
884 | if (!pdev->dev.platform_data) | |
885 | return -EINVAL; | |
886 | ||
887 | sharpsl_pm.dev = &pdev->dev; | |
888 | sharpsl_pm.machinfo = pdev->dev.platform_data; | |
889 | sharpsl_pm.charge_mode = CHRG_OFF; | |
890 | sharpsl_pm.flags = 0; | |
891 | ||
892 | init_timer(&sharpsl_pm.ac_timer); | |
893 | sharpsl_pm.ac_timer.function = sharpsl_ac_timer; | |
894 | ||
895 | init_timer(&sharpsl_pm.chrg_full_timer); | |
896 | sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; | |
897 | ||
898 | led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger); | |
899 | ||
900 | sharpsl_pm.machinfo->init(); | |
901 | ||
d5af2778 DES |
902 | gpio_request(sharpsl_pm.machinfo->gpio_acin, "AC IN"); |
903 | gpio_direction_input(sharpsl_pm.machinfo->gpio_acin); | |
904 | gpio_request(sharpsl_pm.machinfo->gpio_batfull, "Battery Full"); | |
905 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batfull); | |
906 | gpio_request(sharpsl_pm.machinfo->gpio_batlock, "Battery Lock"); | |
907 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock); | |
d48898a3 DES |
908 | |
909 | /* Register interrupt handlers */ | |
54525372 | 910 | if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "AC Input Detect", sharpsl_ac_isr)) { |
d48898a3 DES |
911 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin)); |
912 | } | |
d48898a3 | 913 | |
54525372 | 914 | if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Battery Cover", sharpsl_fatal_isr)) { |
d48898a3 DES |
915 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock)); |
916 | } | |
d48898a3 DES |
917 | |
918 | if (sharpsl_pm.machinfo->gpio_fatal) { | |
54525372 | 919 | if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Fatal Battery", sharpsl_fatal_isr)) { |
d48898a3 DES |
920 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal)); |
921 | } | |
d48898a3 DES |
922 | } |
923 | ||
b64b0b76 | 924 | if (sharpsl_pm.machinfo->batfull_irq) { |
d48898a3 | 925 | /* Register interrupt handler. */ |
54525372 | 926 | if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING, "CO", sharpsl_chrg_full_isr)) { |
d48898a3 DES |
927 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull)); |
928 | } | |
d48898a3 DES |
929 | } |
930 | ||
78731d33 DES |
931 | ret = device_create_file(&pdev->dev, &dev_attr_battery_percentage); |
932 | ret |= device_create_file(&pdev->dev, &dev_attr_battery_voltage); | |
933 | if (ret != 0) | |
934 | dev_warn(&pdev->dev, "Failed to register attributes (%d)\n", ret); | |
935 | ||
936 | apm_get_power_status = sharpsl_apm_get_power_status; | |
937 | ||
938 | #ifdef CONFIG_PM | |
939 | suspend_set_ops(&sharpsl_pm_ops); | |
940 | #endif | |
941 | ||
942 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | static int sharpsl_pm_remove(struct platform_device *pdev) | |
948 | { | |
949 | suspend_set_ops(NULL); | |
950 | ||
951 | device_remove_file(&pdev->dev, &dev_attr_battery_percentage); | |
952 | device_remove_file(&pdev->dev, &dev_attr_battery_voltage); | |
953 | ||
954 | led_trigger_unregister_simple(sharpsl_charge_led_trigger); | |
955 | ||
d48898a3 DES |
956 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr); |
957 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr); | |
958 | ||
959 | if (sharpsl_pm.machinfo->gpio_fatal) | |
960 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr); | |
961 | ||
962 | if (sharpsl_pm.machinfo->batfull_irq) | |
963 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr); | |
964 | ||
d5af2778 DES |
965 | gpio_free(sharpsl_pm.machinfo->gpio_batlock); |
966 | gpio_free(sharpsl_pm.machinfo->gpio_batfull); | |
967 | gpio_free(sharpsl_pm.machinfo->gpio_acin); | |
968 | ||
d48898a3 DES |
969 | if (sharpsl_pm.machinfo->exit) |
970 | sharpsl_pm.machinfo->exit(); | |
78731d33 DES |
971 | |
972 | del_timer_sync(&sharpsl_pm.chrg_full_timer); | |
973 | del_timer_sync(&sharpsl_pm.ac_timer); | |
974 | ||
975 | return 0; | |
976 | } | |
977 | ||
978 | static struct platform_driver sharpsl_pm_driver = { | |
979 | .probe = sharpsl_pm_probe, | |
980 | .remove = sharpsl_pm_remove, | |
981 | .suspend = sharpsl_pm_suspend, | |
982 | .resume = sharpsl_pm_resume, | |
983 | .driver = { | |
984 | .name = "sharpsl-pm", | |
985 | }, | |
986 | }; | |
987 | ||
988 | static int __devinit sharpsl_pm_init(void) | |
989 | { | |
990 | return platform_driver_register(&sharpsl_pm_driver); | |
991 | } | |
992 | ||
993 | static void sharpsl_pm_exit(void) | |
994 | { | |
995 | platform_driver_unregister(&sharpsl_pm_driver); | |
996 | } | |
997 | ||
998 | late_initcall(sharpsl_pm_init); | |
999 | module_exit(sharpsl_pm_exit); |