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> |
a09e64fb | 31 | #include <mach/pxa2xx-gpio.h> |
78731d33 | 32 | #include <mach/regs-rtc.h> |
a09e64fb | 33 | #include <mach/sharpsl.h> |
78731d33 DES |
34 | #include <mach/sharpsl_pm.h> |
35 | ||
d48898a3 DES |
36 | #include "sharpsl.h" |
37 | ||
78731d33 DES |
38 | /* |
39 | * Constants | |
40 | */ | |
41 | #define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ | |
42 | #define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ | |
43 | #define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ | |
44 | #define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ | |
45 | ||
46 | #define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ | |
47 | #define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ | |
48 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ | |
49 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ | |
50 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ | |
51 | #define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ | |
52 | #define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ | |
53 | #define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ | |
54 | ||
55 | /* | |
56 | * Prototypes | |
57 | */ | |
58 | #ifdef CONFIG_PM | |
59 | static int sharpsl_off_charge_battery(void); | |
60 | static int sharpsl_check_battery_voltage(void); | |
61 | static int sharpsl_fatal_check(void); | |
62 | #endif | |
63 | static int sharpsl_check_battery_temp(void); | |
64 | static int sharpsl_ac_check(void); | |
65 | static int sharpsl_average_value(int ad); | |
66 | static void sharpsl_average_clear(void); | |
67 | static void sharpsl_charge_toggle(struct work_struct *private_); | |
68 | static void sharpsl_battery_thread(struct work_struct *private_); | |
69 | ||
70 | ||
71 | /* | |
72 | * Variables | |
73 | */ | |
74 | struct sharpsl_pm_status sharpsl_pm; | |
d48898a3 DES |
75 | static DECLARE_DELAYED_WORK(toggle_charger, sharpsl_charge_toggle); |
76 | static DECLARE_DELAYED_WORK(sharpsl_bat, sharpsl_battery_thread); | |
78731d33 DES |
77 | DEFINE_LED_TRIGGER(sharpsl_charge_led_trigger); |
78 | ||
79 | ||
078abcf9 | 80 | |
078abcf9 RP |
81 | struct battery_thresh spitz_battery_levels_acin[] = { |
82 | { 213, 100}, | |
83 | { 212, 98}, | |
84 | { 211, 95}, | |
85 | { 210, 93}, | |
86 | { 209, 90}, | |
87 | { 208, 88}, | |
88 | { 207, 85}, | |
89 | { 206, 83}, | |
90 | { 205, 80}, | |
91 | { 204, 78}, | |
92 | { 203, 75}, | |
93 | { 202, 73}, | |
94 | { 201, 70}, | |
95 | { 200, 68}, | |
96 | { 199, 65}, | |
97 | { 198, 63}, | |
98 | { 197, 60}, | |
99 | { 196, 58}, | |
100 | { 195, 55}, | |
101 | { 194, 53}, | |
102 | { 193, 50}, | |
103 | { 192, 48}, | |
104 | { 192, 45}, | |
105 | { 191, 43}, | |
106 | { 191, 40}, | |
107 | { 190, 38}, | |
108 | { 190, 35}, | |
109 | { 189, 33}, | |
110 | { 188, 30}, | |
111 | { 187, 28}, | |
112 | { 186, 25}, | |
113 | { 185, 23}, | |
114 | { 184, 20}, | |
115 | { 183, 18}, | |
116 | { 182, 15}, | |
117 | { 181, 13}, | |
118 | { 180, 10}, | |
119 | { 179, 8}, | |
120 | { 178, 5}, | |
121 | { 0, 0}, | |
122 | }; | |
123 | ||
124 | struct battery_thresh spitz_battery_levels_noac[] = { | |
125 | { 213, 100}, | |
126 | { 212, 98}, | |
127 | { 211, 95}, | |
128 | { 210, 93}, | |
129 | { 209, 90}, | |
130 | { 208, 88}, | |
131 | { 207, 85}, | |
132 | { 206, 83}, | |
133 | { 205, 80}, | |
134 | { 204, 78}, | |
135 | { 203, 75}, | |
136 | { 202, 73}, | |
137 | { 201, 70}, | |
138 | { 200, 68}, | |
139 | { 199, 65}, | |
140 | { 198, 63}, | |
141 | { 197, 60}, | |
142 | { 196, 58}, | |
143 | { 195, 55}, | |
144 | { 194, 53}, | |
145 | { 193, 50}, | |
146 | { 192, 48}, | |
147 | { 191, 45}, | |
148 | { 190, 43}, | |
149 | { 189, 40}, | |
150 | { 188, 38}, | |
151 | { 187, 35}, | |
152 | { 186, 33}, | |
153 | { 185, 30}, | |
154 | { 184, 28}, | |
155 | { 183, 25}, | |
156 | { 182, 23}, | |
157 | { 181, 20}, | |
158 | { 180, 18}, | |
159 | { 179, 15}, | |
160 | { 178, 13}, | |
161 | { 177, 10}, | |
162 | { 176, 8}, | |
163 | { 175, 5}, | |
164 | { 0, 0}, | |
165 | }; | |
166 | ||
25af3b0f EM |
167 | /* MAX1111 Commands */ |
168 | #define MAXCTRL_PD0 1u << 0 | |
169 | #define MAXCTRL_PD1 1u << 1 | |
170 | #define MAXCTRL_SGL 1u << 2 | |
171 | #define MAXCTRL_UNI 1u << 3 | |
172 | #define MAXCTRL_SEL_SH 4 | |
173 | #define MAXCTRL_STR 1u << 7 | |
174 | ||
078abcf9 RP |
175 | /* |
176 | * Read MAX1111 ADC | |
177 | */ | |
b7557de4 | 178 | int sharpsl_pm_pxa_read_max1111(int channel) |
078abcf9 | 179 | { |
f8703dc8 RP |
180 | if (machine_is_tosa()) // Ugly, better move this function into another module |
181 | return 0; | |
182 | ||
45e2a9b4 EM |
183 | #ifdef CONFIG_CORGI_SSP_DEPRECATED |
184 | return corgi_ssp_max1111_get((channel << MAXCTRL_SEL_SH) | MAXCTRL_PD0 | MAXCTRL_PD1 | |
185 | | MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR); | |
186 | #else | |
25af3b0f EM |
187 | extern int max1111_read_channel(int); |
188 | ||
f16177c2 EM |
189 | /* max1111 accepts channels from 0-3, however, |
190 | * it is encoded from 0-7 here in the code. | |
191 | */ | |
192 | return max1111_read_channel(channel >> 1); | |
25af3b0f | 193 | #endif |
078abcf9 RP |
194 | } |
195 | ||
78731d33 DES |
196 | static int get_percentage(int voltage) |
197 | { | |
198 | int i = sharpsl_pm.machinfo->bat_levels - 1; | |
199 | int bl_status = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0; | |
200 | struct battery_thresh *thresh; | |
201 | ||
202 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
203 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_acin_bl : sharpsl_pm.machinfo->bat_levels_acin; | |
204 | else | |
205 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_noac_bl : sharpsl_pm.machinfo->bat_levels_noac; | |
206 | ||
207 | while (i > 0 && (voltage > thresh[i].voltage)) | |
208 | i--; | |
209 | ||
210 | return thresh[i].percentage; | |
211 | } | |
212 | ||
213 | static int get_apm_status(int voltage) | |
214 | { | |
215 | int low_thresh, high_thresh; | |
216 | ||
217 | if (sharpsl_pm.charge_mode == CHRG_ON) { | |
218 | high_thresh = sharpsl_pm.machinfo->status_high_acin; | |
219 | low_thresh = sharpsl_pm.machinfo->status_low_acin; | |
220 | } else { | |
221 | high_thresh = sharpsl_pm.machinfo->status_high_noac; | |
222 | low_thresh = sharpsl_pm.machinfo->status_low_noac; | |
223 | } | |
224 | ||
225 | if (voltage >= high_thresh) | |
226 | return APM_BATTERY_STATUS_HIGH; | |
227 | if (voltage >= low_thresh) | |
228 | return APM_BATTERY_STATUS_LOW; | |
229 | return APM_BATTERY_STATUS_CRITICAL; | |
230 | } | |
231 | ||
232 | void sharpsl_battery_kick(void) | |
233 | { | |
234 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); | |
235 | } | |
236 | EXPORT_SYMBOL(sharpsl_battery_kick); | |
237 | ||
238 | ||
239 | static void sharpsl_battery_thread(struct work_struct *private_) | |
240 | { | |
241 | int voltage, percent, apm_status, i = 0; | |
242 | ||
243 | if (!sharpsl_pm.machinfo) | |
244 | return; | |
245 | ||
246 | sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); | |
247 | ||
248 | /* Corgi cannot confirm when battery fully charged so periodically kick! */ | |
249 | if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON) | |
250 | && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) | |
251 | schedule_delayed_work(&toggle_charger, 0); | |
252 | ||
253 | while(1) { | |
254 | voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); | |
255 | ||
256 | if (voltage > 0) break; | |
257 | if (i++ > 5) { | |
258 | voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; | |
259 | dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); | |
260 | break; | |
261 | } | |
262 | } | |
263 | ||
264 | voltage = sharpsl_average_value(voltage); | |
265 | apm_status = get_apm_status(voltage); | |
266 | percent = get_percentage(voltage); | |
267 | ||
268 | /* At low battery voltages, the voltage has a tendency to start | |
269 | creeping back up so we try to avoid this here */ | |
270 | if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) || (apm_status == APM_BATTERY_STATUS_HIGH) || percent <= sharpsl_pm.battstat.mainbat_percent) { | |
271 | sharpsl_pm.battstat.mainbat_voltage = voltage; | |
272 | sharpsl_pm.battstat.mainbat_status = apm_status; | |
273 | sharpsl_pm.battstat.mainbat_percent = percent; | |
274 | } | |
275 | ||
276 | dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage, | |
277 | sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); | |
278 | ||
279 | #ifdef CONFIG_BACKLIGHT_CORGI | |
280 | /* If battery is low. limit backlight intensity to save power. */ | |
281 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
282 | && ((sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_LOW) || | |
283 | (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL))) { | |
284 | if (!(sharpsl_pm.flags & SHARPSL_BL_LIMIT)) { | |
285 | sharpsl_pm.machinfo->backlight_limit(1); | |
286 | sharpsl_pm.flags |= SHARPSL_BL_LIMIT; | |
287 | } | |
288 | } else if (sharpsl_pm.flags & SHARPSL_BL_LIMIT) { | |
289 | sharpsl_pm.machinfo->backlight_limit(0); | |
290 | sharpsl_pm.flags &= ~SHARPSL_BL_LIMIT; | |
291 | } | |
292 | #endif | |
293 | ||
294 | /* Suspend if critical battery level */ | |
295 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
296 | && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) | |
297 | && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { | |
298 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
299 | dev_err(sharpsl_pm.dev, "Fatal Off\n"); | |
300 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
301 | } | |
302 | ||
303 | schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); | |
304 | } | |
305 | ||
306 | void sharpsl_pm_led(int val) | |
307 | { | |
308 | if (val == SHARPSL_LED_ERROR) { | |
309 | dev_err(sharpsl_pm.dev, "Charging Error!\n"); | |
310 | } else if (val == SHARPSL_LED_ON) { | |
311 | dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); | |
312 | led_trigger_event(sharpsl_charge_led_trigger, LED_FULL); | |
313 | } else { | |
314 | dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); | |
315 | led_trigger_event(sharpsl_charge_led_trigger, LED_OFF); | |
316 | } | |
317 | } | |
318 | ||
319 | static void sharpsl_charge_on(void) | |
320 | { | |
321 | dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); | |
322 | ||
323 | sharpsl_pm.full_count = 0; | |
324 | sharpsl_pm.charge_mode = CHRG_ON; | |
325 | schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); | |
326 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); | |
327 | } | |
328 | ||
329 | static void sharpsl_charge_off(void) | |
330 | { | |
331 | dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); | |
332 | ||
333 | sharpsl_pm.machinfo->charge(0); | |
334 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
335 | sharpsl_pm.charge_mode = CHRG_OFF; | |
336 | ||
337 | schedule_delayed_work(&sharpsl_bat, 0); | |
338 | } | |
339 | ||
340 | static void sharpsl_charge_error(void) | |
341 | { | |
342 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
343 | sharpsl_pm.machinfo->charge(0); | |
344 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
345 | } | |
346 | ||
347 | static void sharpsl_charge_toggle(struct work_struct *private_) | |
348 | { | |
349 | dev_dbg(sharpsl_pm.dev, "Toogling Charger at time: %lx\n", jiffies); | |
350 | ||
351 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
352 | sharpsl_charge_off(); | |
353 | return; | |
354 | } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { | |
355 | sharpsl_charge_error(); | |
356 | return; | |
357 | } | |
358 | ||
359 | sharpsl_pm_led(SHARPSL_LED_ON); | |
360 | sharpsl_pm.machinfo->charge(0); | |
361 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
362 | sharpsl_pm.machinfo->charge(1); | |
363 | ||
364 | sharpsl_pm.charge_start_time = jiffies; | |
365 | } | |
366 | ||
367 | static void sharpsl_ac_timer(unsigned long data) | |
368 | { | |
369 | int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
370 | ||
371 | dev_dbg(sharpsl_pm.dev, "AC Status: %d\n",acin); | |
372 | ||
373 | sharpsl_average_clear(); | |
374 | if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) | |
375 | sharpsl_charge_on(); | |
376 | else if (sharpsl_pm.charge_mode == CHRG_ON) | |
377 | sharpsl_charge_off(); | |
378 | ||
379 | schedule_delayed_work(&sharpsl_bat, 0); | |
380 | } | |
381 | ||
382 | ||
d48898a3 | 383 | static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id) |
78731d33 DES |
384 | { |
385 | /* Delay the event slightly to debounce */ | |
386 | /* Must be a smaller delay than the chrg_full_isr below */ | |
387 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
388 | ||
389 | return IRQ_HANDLED; | |
390 | } | |
391 | ||
392 | static void sharpsl_chrg_full_timer(unsigned long data) | |
393 | { | |
394 | dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); | |
395 | ||
396 | sharpsl_pm.full_count++; | |
397 | ||
398 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
399 | dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); | |
400 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
401 | sharpsl_charge_off(); | |
402 | } else if (sharpsl_pm.full_count < 2) { | |
403 | dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); | |
404 | schedule_delayed_work(&toggle_charger, 0); | |
405 | } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { | |
406 | dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); | |
407 | schedule_delayed_work(&toggle_charger, 0); | |
408 | } else { | |
409 | sharpsl_charge_off(); | |
410 | sharpsl_pm.charge_mode = CHRG_DONE; | |
411 | dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); | |
412 | } | |
413 | } | |
414 | ||
415 | /* Charging Finished Interrupt (Not present on Corgi) */ | |
416 | /* Can trigger at the same time as an AC status change so | |
417 | delay until after that has been processed */ | |
d48898a3 | 418 | static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id) |
78731d33 DES |
419 | { |
420 | if (sharpsl_pm.flags & SHARPSL_SUSPENDED) | |
421 | return IRQ_HANDLED; | |
422 | ||
423 | /* delay until after any ac interrupt */ | |
424 | mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); | |
425 | ||
426 | return IRQ_HANDLED; | |
427 | } | |
428 | ||
d48898a3 | 429 | static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id) |
78731d33 DES |
430 | { |
431 | int is_fatal = 0; | |
432 | ||
433 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { | |
434 | dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); | |
435 | is_fatal = 1; | |
436 | } | |
437 | ||
438 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { | |
439 | dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); | |
440 | is_fatal = 1; | |
441 | } | |
442 | ||
443 | if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { | |
444 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
445 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
446 | } | |
447 | ||
448 | return IRQ_HANDLED; | |
449 | } | |
450 | ||
451 | /* | |
452 | * Maintain an average of the last 10 readings | |
453 | */ | |
454 | #define SHARPSL_CNV_VALUE_NUM 10 | |
455 | static int sharpsl_ad_index; | |
456 | ||
457 | static void sharpsl_average_clear(void) | |
458 | { | |
459 | sharpsl_ad_index = 0; | |
460 | } | |
461 | ||
462 | static int sharpsl_average_value(int ad) | |
463 | { | |
464 | int i, ad_val = 0; | |
465 | static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; | |
466 | ||
467 | if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { | |
468 | sharpsl_ad_index = 0; | |
469 | return ad; | |
470 | } | |
471 | ||
472 | sharpsl_ad[sharpsl_ad_index] = ad; | |
473 | sharpsl_ad_index++; | |
474 | if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { | |
475 | for (i=0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) | |
476 | sharpsl_ad[i] = sharpsl_ad[i+1]; | |
477 | sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; | |
478 | } | |
479 | for (i=0; i < sharpsl_ad_index; i++) | |
480 | ad_val += sharpsl_ad[i]; | |
481 | ||
482 | return (ad_val / sharpsl_ad_index); | |
483 | } | |
484 | ||
485 | /* | |
486 | * Take an array of 5 integers, remove the maximum and minimum values | |
487 | * and return the average. | |
488 | */ | |
489 | static int get_select_val(int *val) | |
490 | { | |
491 | int i, j, k, temp, sum = 0; | |
492 | ||
493 | /* Find MAX val */ | |
494 | temp = val[0]; | |
495 | j=0; | |
496 | for (i=1; i<5; i++) { | |
497 | if (temp < val[i]) { | |
498 | temp = val[i]; | |
499 | j = i; | |
500 | } | |
501 | } | |
502 | ||
503 | /* Find MIN val */ | |
504 | temp = val[4]; | |
505 | k=4; | |
506 | for (i=3; i>=0; i--) { | |
507 | if (temp > val[i]) { | |
508 | temp = val[i]; | |
509 | k = i; | |
510 | } | |
511 | } | |
512 | ||
513 | for (i=0; i<5; i++) | |
514 | if (i != j && i != k ) | |
515 | sum += val[i]; | |
516 | ||
517 | 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]); | |
518 | ||
519 | return (sum/3); | |
520 | } | |
521 | ||
522 | static int sharpsl_check_battery_temp(void) | |
523 | { | |
524 | int val, i, buff[5]; | |
525 | ||
526 | /* Check battery temperature */ | |
527 | for (i=0; i<5; i++) { | |
528 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
529 | sharpsl_pm.machinfo->measure_temp(1); | |
530 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
531 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); | |
532 | sharpsl_pm.machinfo->measure_temp(0); | |
533 | } | |
534 | ||
535 | val = get_select_val(buff); | |
536 | ||
537 | dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); | |
538 | if (val > sharpsl_pm.machinfo->charge_on_temp) { | |
539 | printk(KERN_WARNING "Not charging: temperature out of limits.\n"); | |
540 | return -1; | |
541 | } | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | #ifdef CONFIG_PM | |
547 | static int sharpsl_check_battery_voltage(void) | |
548 | { | |
549 | int val, i, buff[5]; | |
550 | ||
551 | /* disable charge, enable discharge */ | |
552 | sharpsl_pm.machinfo->charge(0); | |
553 | sharpsl_pm.machinfo->discharge(1); | |
554 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
555 | ||
556 | if (sharpsl_pm.machinfo->discharge1) | |
557 | sharpsl_pm.machinfo->discharge1(1); | |
558 | ||
559 | /* Check battery voltage */ | |
560 | for (i=0; i<5; i++) { | |
561 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); | |
562 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
563 | } | |
564 | ||
565 | if (sharpsl_pm.machinfo->discharge1) | |
566 | sharpsl_pm.machinfo->discharge1(0); | |
567 | ||
568 | sharpsl_pm.machinfo->discharge(0); | |
569 | ||
570 | val = get_select_val(buff); | |
571 | dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); | |
572 | ||
573 | if (val < sharpsl_pm.machinfo->charge_on_volt) | |
574 | return -1; | |
575 | ||
576 | return 0; | |
577 | } | |
578 | #endif | |
579 | ||
580 | static int sharpsl_ac_check(void) | |
581 | { | |
582 | int temp, i, buff[5]; | |
583 | ||
584 | for (i=0; i<5; i++) { | |
585 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); | |
586 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); | |
587 | } | |
588 | ||
589 | temp = get_select_val(buff); | |
590 | dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n",temp); | |
591 | ||
592 | if ((temp > sharpsl_pm.machinfo->charge_acin_high) || (temp < sharpsl_pm.machinfo->charge_acin_low)) { | |
593 | dev_err(sharpsl_pm.dev, "Error: AC check failed.\n"); | |
594 | return -1; | |
595 | } | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
600 | #ifdef CONFIG_PM | |
601 | static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) | |
602 | { | |
603 | sharpsl_pm.flags |= SHARPSL_SUSPENDED; | |
604 | flush_scheduled_work(); | |
605 | ||
606 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
607 | sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; | |
608 | else | |
609 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | static int sharpsl_pm_resume(struct platform_device *pdev) | |
615 | { | |
616 | /* Clear the reset source indicators as they break the bootloader upon reboot */ | |
617 | RCSR = 0x0f; | |
618 | sharpsl_average_clear(); | |
619 | sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; | |
620 | sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
625 | static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
626 | { | |
627 | dev_dbg(sharpsl_pm.dev, "Time is: %08x\n",RCNR); | |
628 | ||
629 | dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n",sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); | |
630 | /* not charging and AC-IN! */ | |
631 | ||
632 | if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { | |
633 | dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); | |
634 | sharpsl_pm.charge_mode = CHRG_OFF; | |
635 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
636 | sharpsl_off_charge_battery(); | |
637 | } | |
638 | ||
639 | sharpsl_pm.machinfo->presuspend(); | |
640 | ||
641 | PEDR = 0xffffffff; /* clear it */ | |
642 | ||
643 | sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; | |
644 | if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { | |
645 | RTSR &= RTSR_ALE; | |
646 | RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; | |
647 | dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n",RTAR); | |
648 | sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; | |
649 | } else if (alarm_enable) { | |
650 | RTSR &= RTSR_ALE; | |
651 | RTAR = alarm_time; | |
652 | dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n",RTAR); | |
653 | } else { | |
654 | dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); | |
655 | } | |
656 | ||
657 | pxa_pm_enter(state); | |
658 | ||
659 | sharpsl_pm.machinfo->postsuspend(); | |
660 | ||
661 | dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n",PEDR); | |
662 | } | |
663 | ||
664 | static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
665 | { | |
666 | if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable) ) | |
667 | { | |
668 | if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { | |
669 | dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); | |
670 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
671 | return 1; | |
672 | } | |
673 | if(sharpsl_off_charge_battery()) { | |
674 | dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); | |
675 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
676 | return 1; | |
677 | } | |
678 | dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); | |
679 | } | |
680 | ||
681 | if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || (sharpsl_fatal_check() < 0) ) | |
682 | { | |
683 | dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); | |
684 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
685 | return 1; | |
686 | } | |
687 | ||
688 | return 0; | |
689 | } | |
690 | ||
691 | static int corgi_pxa_pm_enter(suspend_state_t state) | |
692 | { | |
693 | unsigned long alarm_time = RTAR; | |
694 | unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); | |
695 | ||
696 | dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); | |
697 | ||
698 | corgi_goto_sleep(alarm_time, alarm_status, state); | |
699 | ||
700 | while (corgi_enter_suspend(alarm_time,alarm_status,state)) | |
701 | {} | |
702 | ||
703 | if (sharpsl_pm.machinfo->earlyresume) | |
704 | sharpsl_pm.machinfo->earlyresume(); | |
705 | ||
706 | dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
711 | /* | |
712 | * Check for fatal battery errors | |
713 | * Fatal returns -1 | |
714 | */ | |
715 | static int sharpsl_fatal_check(void) | |
716 | { | |
717 | int buff[5], temp, i, acin; | |
718 | ||
719 | dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n"); | |
720 | ||
721 | /* Check AC-Adapter */ | |
722 | acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
723 | ||
724 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
725 | sharpsl_pm.machinfo->charge(0); | |
726 | udelay(100); | |
727 | sharpsl_pm.machinfo->discharge(1); /* enable discharge */ | |
728 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
729 | } | |
730 | ||
731 | if (sharpsl_pm.machinfo->discharge1) | |
732 | sharpsl_pm.machinfo->discharge1(1); | |
733 | ||
734 | /* Check battery : check inserting battery ? */ | |
735 | for (i=0; i<5; i++) { | |
736 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); | |
737 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
738 | } | |
739 | ||
740 | if (sharpsl_pm.machinfo->discharge1) | |
741 | sharpsl_pm.machinfo->discharge1(0); | |
742 | ||
743 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
744 | udelay(100); | |
745 | sharpsl_pm.machinfo->charge(1); | |
746 | sharpsl_pm.machinfo->discharge(0); | |
747 | } | |
748 | ||
749 | temp = get_select_val(buff); | |
750 | 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)); | |
751 | ||
752 | if ((acin && (temp < sharpsl_pm.machinfo->fatal_acin_volt)) || | |
753 | (!acin && (temp < sharpsl_pm.machinfo->fatal_noacin_volt))) | |
754 | return -1; | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static int sharpsl_off_charge_error(void) | |
759 | { | |
760 | dev_err(sharpsl_pm.dev, "Offline Charger: Error occurred.\n"); | |
761 | sharpsl_pm.machinfo->charge(0); | |
762 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
763 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
764 | return 1; | |
765 | } | |
766 | ||
767 | /* | |
768 | * Charging Control while suspended | |
769 | * Return 1 - go straight to sleep | |
770 | * Return 0 - sleep or wakeup depending on other factors | |
771 | */ | |
772 | static int sharpsl_off_charge_battery(void) | |
773 | { | |
774 | int time; | |
775 | ||
776 | dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); | |
777 | ||
778 | if (sharpsl_pm.charge_mode == CHRG_OFF) { | |
779 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); | |
780 | ||
781 | /* AC Check */ | |
782 | if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) | |
783 | return sharpsl_off_charge_error(); | |
784 | ||
785 | /* Start Charging */ | |
786 | sharpsl_pm_led(SHARPSL_LED_ON); | |
787 | sharpsl_pm.machinfo->charge(0); | |
788 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
789 | sharpsl_pm.machinfo->charge(1); | |
790 | ||
791 | sharpsl_pm.charge_mode = CHRG_ON; | |
792 | sharpsl_pm.full_count = 0; | |
793 | ||
794 | return 1; | |
795 | } else if (sharpsl_pm.charge_mode != CHRG_ON) { | |
796 | return 1; | |
797 | } | |
798 | ||
799 | if (sharpsl_pm.full_count == 0) { | |
800 | int time; | |
801 | ||
802 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); | |
803 | ||
804 | if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) | |
805 | return sharpsl_off_charge_error(); | |
806 | ||
807 | sharpsl_pm.machinfo->charge(0); | |
808 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
809 | sharpsl_pm.machinfo->charge(1); | |
810 | sharpsl_pm.charge_mode = CHRG_ON; | |
811 | ||
812 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
813 | ||
814 | time = RCNR; | |
815 | while(1) { | |
816 | /* Check if any wakeup event had occurred */ | |
817 | if (sharpsl_pm.machinfo->charger_wakeup() != 0) | |
818 | return 0; | |
819 | /* Check for timeout */ | |
820 | if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) | |
821 | return 1; | |
822 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
823 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n"); | |
824 | sharpsl_pm.full_count++; | |
825 | sharpsl_pm.machinfo->charge(0); | |
826 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
827 | sharpsl_pm.machinfo->charge(1); | |
828 | return 1; | |
829 | } | |
830 | } | |
831 | } | |
832 | ||
833 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); | |
834 | ||
835 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
836 | ||
837 | time = RCNR; | |
838 | while(1) { | |
839 | /* Check if any wakeup event had occurred */ | |
840 | if (sharpsl_pm.machinfo->charger_wakeup() != 0) | |
841 | return 0; | |
842 | /* Check for timeout */ | |
843 | if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { | |
844 | if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { | |
845 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); | |
846 | sharpsl_pm.full_count = 0; | |
847 | } | |
848 | sharpsl_pm.full_count++; | |
849 | return 1; | |
850 | } | |
851 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
852 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); | |
853 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
854 | sharpsl_pm.machinfo->charge(0); | |
855 | sharpsl_pm.charge_mode = CHRG_DONE; | |
856 | return 1; | |
857 | } | |
858 | } | |
859 | } | |
860 | #else | |
861 | #define sharpsl_pm_suspend NULL | |
862 | #define sharpsl_pm_resume NULL | |
863 | #endif | |
864 | ||
865 | static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
866 | { | |
867 | return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_percent); | |
868 | } | |
869 | ||
870 | static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
871 | { | |
872 | return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_voltage); | |
873 | } | |
874 | ||
875 | static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); | |
876 | static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); | |
877 | ||
878 | extern void (*apm_get_power_status)(struct apm_power_info *); | |
879 | ||
880 | static void sharpsl_apm_get_power_status(struct apm_power_info *info) | |
881 | { | |
882 | info->ac_line_status = sharpsl_pm.battstat.ac_status; | |
883 | ||
884 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
885 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
886 | else | |
887 | info->battery_status = sharpsl_pm.battstat.mainbat_status; | |
888 | ||
889 | info->battery_flag = (1 << info->battery_status); | |
890 | info->battery_life = sharpsl_pm.battstat.mainbat_percent; | |
891 | } | |
892 | ||
893 | #ifdef CONFIG_PM | |
894 | static struct platform_suspend_ops sharpsl_pm_ops = { | |
51cdd928 PM |
895 | .prepare = pxa_pm_prepare, |
896 | .finish = pxa_pm_finish, | |
78731d33 DES |
897 | .enter = corgi_pxa_pm_enter, |
898 | .valid = suspend_valid_only_mem, | |
899 | }; | |
900 | #endif | |
901 | ||
902 | static int __init sharpsl_pm_probe(struct platform_device *pdev) | |
903 | { | |
904 | int ret; | |
905 | ||
906 | if (!pdev->dev.platform_data) | |
907 | return -EINVAL; | |
908 | ||
909 | sharpsl_pm.dev = &pdev->dev; | |
910 | sharpsl_pm.machinfo = pdev->dev.platform_data; | |
911 | sharpsl_pm.charge_mode = CHRG_OFF; | |
912 | sharpsl_pm.flags = 0; | |
913 | ||
914 | init_timer(&sharpsl_pm.ac_timer); | |
915 | sharpsl_pm.ac_timer.function = sharpsl_ac_timer; | |
916 | ||
917 | init_timer(&sharpsl_pm.chrg_full_timer); | |
918 | sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; | |
919 | ||
920 | led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger); | |
921 | ||
922 | sharpsl_pm.machinfo->init(); | |
923 | ||
d5af2778 DES |
924 | gpio_request(sharpsl_pm.machinfo->gpio_acin, "AC IN"); |
925 | gpio_direction_input(sharpsl_pm.machinfo->gpio_acin); | |
926 | gpio_request(sharpsl_pm.machinfo->gpio_batfull, "Battery Full"); | |
927 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batfull); | |
928 | gpio_request(sharpsl_pm.machinfo->gpio_batlock, "Battery Lock"); | |
929 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock); | |
d48898a3 DES |
930 | |
931 | /* Register interrupt handlers */ | |
54525372 | 932 | 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 |
933 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin)); |
934 | } | |
d48898a3 | 935 | |
54525372 | 936 | 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 |
937 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock)); |
938 | } | |
d48898a3 DES |
939 | |
940 | if (sharpsl_pm.machinfo->gpio_fatal) { | |
54525372 | 941 | 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 |
942 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal)); |
943 | } | |
d48898a3 DES |
944 | } |
945 | ||
946 | if (sharpsl_pm.machinfo->batfull_irq) | |
947 | { | |
948 | /* Register interrupt handler. */ | |
54525372 | 949 | 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 |
950 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull)); |
951 | } | |
d48898a3 DES |
952 | } |
953 | ||
78731d33 DES |
954 | ret = device_create_file(&pdev->dev, &dev_attr_battery_percentage); |
955 | ret |= device_create_file(&pdev->dev, &dev_attr_battery_voltage); | |
956 | if (ret != 0) | |
957 | dev_warn(&pdev->dev, "Failed to register attributes (%d)\n", ret); | |
958 | ||
959 | apm_get_power_status = sharpsl_apm_get_power_status; | |
960 | ||
961 | #ifdef CONFIG_PM | |
962 | suspend_set_ops(&sharpsl_pm_ops); | |
963 | #endif | |
964 | ||
965 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
966 | ||
967 | return 0; | |
968 | } | |
969 | ||
970 | static int sharpsl_pm_remove(struct platform_device *pdev) | |
971 | { | |
972 | suspend_set_ops(NULL); | |
973 | ||
974 | device_remove_file(&pdev->dev, &dev_attr_battery_percentage); | |
975 | device_remove_file(&pdev->dev, &dev_attr_battery_voltage); | |
976 | ||
977 | led_trigger_unregister_simple(sharpsl_charge_led_trigger); | |
978 | ||
d48898a3 DES |
979 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr); |
980 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr); | |
981 | ||
982 | if (sharpsl_pm.machinfo->gpio_fatal) | |
983 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr); | |
984 | ||
985 | if (sharpsl_pm.machinfo->batfull_irq) | |
986 | free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr); | |
987 | ||
d5af2778 DES |
988 | gpio_free(sharpsl_pm.machinfo->gpio_batlock); |
989 | gpio_free(sharpsl_pm.machinfo->gpio_batfull); | |
990 | gpio_free(sharpsl_pm.machinfo->gpio_acin); | |
991 | ||
d48898a3 DES |
992 | if (sharpsl_pm.machinfo->exit) |
993 | sharpsl_pm.machinfo->exit(); | |
78731d33 DES |
994 | |
995 | del_timer_sync(&sharpsl_pm.chrg_full_timer); | |
996 | del_timer_sync(&sharpsl_pm.ac_timer); | |
997 | ||
998 | return 0; | |
999 | } | |
1000 | ||
1001 | static struct platform_driver sharpsl_pm_driver = { | |
1002 | .probe = sharpsl_pm_probe, | |
1003 | .remove = sharpsl_pm_remove, | |
1004 | .suspend = sharpsl_pm_suspend, | |
1005 | .resume = sharpsl_pm_resume, | |
1006 | .driver = { | |
1007 | .name = "sharpsl-pm", | |
1008 | }, | |
1009 | }; | |
1010 | ||
1011 | static int __devinit sharpsl_pm_init(void) | |
1012 | { | |
1013 | return platform_driver_register(&sharpsl_pm_driver); | |
1014 | } | |
1015 | ||
1016 | static void sharpsl_pm_exit(void) | |
1017 | { | |
1018 | platform_driver_unregister(&sharpsl_pm_driver); | |
1019 | } | |
1020 | ||
1021 | late_initcall(sharpsl_pm_init); | |
1022 | module_exit(sharpsl_pm_exit); |