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 | |
0ba01ebc | 81 | struct battery_thresh sharpsl_battery_levels_acin[] = { |
078abcf9 RP |
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 | ||
0ba01ebc | 124 | struct battery_thresh sharpsl_battery_levels_noac[] = { |
078abcf9 RP |
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 | 167 | /* MAX1111 Commands */ |
b64b0b76 PM |
168 | #define MAXCTRL_PD0 (1u << 0) |
169 | #define MAXCTRL_PD1 (1u << 1) | |
170 | #define MAXCTRL_SGL (1u << 2) | |
171 | #define MAXCTRL_UNI (1u << 3) | |
25af3b0f | 172 | #define MAXCTRL_SEL_SH 4 |
b64b0b76 | 173 | #define MAXCTRL_STR (1u << 7) |
25af3b0f | 174 | |
078abcf9 RP |
175 | /* |
176 | * Read MAX1111 ADC | |
177 | */ | |
b7557de4 | 178 | int sharpsl_pm_pxa_read_max1111(int channel) |
078abcf9 | 179 | { |
b64b0b76 PM |
180 | /* Ugly, better move this function into another module */ |
181 | if (machine_is_tosa()) | |
f8703dc8 RP |
182 | return 0; |
183 | ||
45e2a9b4 EM |
184 | #ifdef CONFIG_CORGI_SSP_DEPRECATED |
185 | return corgi_ssp_max1111_get((channel << MAXCTRL_SEL_SH) | MAXCTRL_PD0 | MAXCTRL_PD1 | |
186 | | MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR); | |
187 | #else | |
25af3b0f EM |
188 | extern int max1111_read_channel(int); |
189 | ||
f16177c2 EM |
190 | /* max1111 accepts channels from 0-3, however, |
191 | * it is encoded from 0-7 here in the code. | |
192 | */ | |
193 | return max1111_read_channel(channel >> 1); | |
25af3b0f | 194 | #endif |
078abcf9 RP |
195 | } |
196 | ||
78731d33 DES |
197 | static int get_percentage(int voltage) |
198 | { | |
199 | int i = sharpsl_pm.machinfo->bat_levels - 1; | |
200 | int bl_status = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0; | |
201 | struct battery_thresh *thresh; | |
202 | ||
203 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
204 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_acin_bl : sharpsl_pm.machinfo->bat_levels_acin; | |
205 | else | |
206 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_noac_bl : sharpsl_pm.machinfo->bat_levels_noac; | |
207 | ||
208 | while (i > 0 && (voltage > thresh[i].voltage)) | |
209 | i--; | |
210 | ||
211 | return thresh[i].percentage; | |
212 | } | |
213 | ||
214 | static int get_apm_status(int voltage) | |
215 | { | |
216 | int low_thresh, high_thresh; | |
217 | ||
218 | if (sharpsl_pm.charge_mode == CHRG_ON) { | |
219 | high_thresh = sharpsl_pm.machinfo->status_high_acin; | |
220 | low_thresh = sharpsl_pm.machinfo->status_low_acin; | |
221 | } else { | |
222 | high_thresh = sharpsl_pm.machinfo->status_high_noac; | |
223 | low_thresh = sharpsl_pm.machinfo->status_low_noac; | |
224 | } | |
225 | ||
226 | if (voltage >= high_thresh) | |
227 | return APM_BATTERY_STATUS_HIGH; | |
228 | if (voltage >= low_thresh) | |
229 | return APM_BATTERY_STATUS_LOW; | |
230 | return APM_BATTERY_STATUS_CRITICAL; | |
231 | } | |
232 | ||
233 | void sharpsl_battery_kick(void) | |
234 | { | |
235 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); | |
236 | } | |
237 | EXPORT_SYMBOL(sharpsl_battery_kick); | |
238 | ||
239 | ||
240 | static void sharpsl_battery_thread(struct work_struct *private_) | |
241 | { | |
b64b0b76 | 242 | int voltage, percent, apm_status, i; |
78731d33 DES |
243 | |
244 | if (!sharpsl_pm.machinfo) | |
245 | return; | |
246 | ||
247 | sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); | |
248 | ||
249 | /* Corgi cannot confirm when battery fully charged so periodically kick! */ | |
250 | if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON) | |
251 | && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) | |
252 | schedule_delayed_work(&toggle_charger, 0); | |
253 | ||
b64b0b76 | 254 | for (i = 0; i < 5; i++) { |
78731d33 | 255 | voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
b64b0b76 | 256 | if (voltage > 0) |
78731d33 | 257 | break; |
b64b0b76 PM |
258 | } |
259 | if (voltage <= 0) { | |
260 | voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; | |
261 | dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); | |
78731d33 DES |
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 | |
b64b0b76 PM |
269 | creeping back up so we try to avoid this here */ |
270 | if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) | |
271 | || (apm_status == APM_BATTERY_STATUS_HIGH) | |
272 | || percent <= sharpsl_pm.battstat.mainbat_percent) { | |
78731d33 DES |
273 | sharpsl_pm.battstat.mainbat_voltage = voltage; |
274 | sharpsl_pm.battstat.mainbat_status = apm_status; | |
275 | sharpsl_pm.battstat.mainbat_percent = percent; | |
276 | } | |
277 | ||
278 | dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage, | |
279 | sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); | |
280 | ||
281 | #ifdef CONFIG_BACKLIGHT_CORGI | |
282 | /* If battery is low. limit backlight intensity to save power. */ | |
283 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
b64b0b76 PM |
284 | && ((sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_LOW) |
285 | || (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL))) { | |
78731d33 DES |
286 | if (!(sharpsl_pm.flags & SHARPSL_BL_LIMIT)) { |
287 | sharpsl_pm.machinfo->backlight_limit(1); | |
288 | sharpsl_pm.flags |= SHARPSL_BL_LIMIT; | |
289 | } | |
290 | } else if (sharpsl_pm.flags & SHARPSL_BL_LIMIT) { | |
291 | sharpsl_pm.machinfo->backlight_limit(0); | |
292 | sharpsl_pm.flags &= ~SHARPSL_BL_LIMIT; | |
293 | } | |
294 | #endif | |
295 | ||
296 | /* Suspend if critical battery level */ | |
297 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
b64b0b76 PM |
298 | && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) |
299 | && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { | |
78731d33 DES |
300 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; |
301 | dev_err(sharpsl_pm.dev, "Fatal Off\n"); | |
302 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
303 | } | |
304 | ||
305 | schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); | |
306 | } | |
307 | ||
308 | void sharpsl_pm_led(int val) | |
309 | { | |
310 | if (val == SHARPSL_LED_ERROR) { | |
311 | dev_err(sharpsl_pm.dev, "Charging Error!\n"); | |
312 | } else if (val == SHARPSL_LED_ON) { | |
313 | dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); | |
314 | led_trigger_event(sharpsl_charge_led_trigger, LED_FULL); | |
315 | } else { | |
316 | dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); | |
317 | led_trigger_event(sharpsl_charge_led_trigger, LED_OFF); | |
318 | } | |
319 | } | |
320 | ||
321 | static void sharpsl_charge_on(void) | |
322 | { | |
323 | dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); | |
324 | ||
325 | sharpsl_pm.full_count = 0; | |
326 | sharpsl_pm.charge_mode = CHRG_ON; | |
327 | schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); | |
328 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); | |
329 | } | |
330 | ||
331 | static void sharpsl_charge_off(void) | |
332 | { | |
333 | dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); | |
334 | ||
335 | sharpsl_pm.machinfo->charge(0); | |
336 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
337 | sharpsl_pm.charge_mode = CHRG_OFF; | |
338 | ||
339 | schedule_delayed_work(&sharpsl_bat, 0); | |
340 | } | |
341 | ||
342 | static void sharpsl_charge_error(void) | |
343 | { | |
344 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
345 | sharpsl_pm.machinfo->charge(0); | |
346 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
347 | } | |
348 | ||
349 | static void sharpsl_charge_toggle(struct work_struct *private_) | |
350 | { | |
b64b0b76 | 351 | dev_dbg(sharpsl_pm.dev, "Toggling Charger at time: %lx\n", jiffies); |
78731d33 DES |
352 | |
353 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
354 | sharpsl_charge_off(); | |
355 | return; | |
356 | } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { | |
357 | sharpsl_charge_error(); | |
358 | return; | |
359 | } | |
360 | ||
361 | sharpsl_pm_led(SHARPSL_LED_ON); | |
362 | sharpsl_pm.machinfo->charge(0); | |
363 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
364 | sharpsl_pm.machinfo->charge(1); | |
365 | ||
366 | sharpsl_pm.charge_start_time = jiffies; | |
367 | } | |
368 | ||
369 | static void sharpsl_ac_timer(unsigned long data) | |
370 | { | |
371 | int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
372 | ||
b64b0b76 | 373 | dev_dbg(sharpsl_pm.dev, "AC Status: %d\n", acin); |
78731d33 DES |
374 | |
375 | sharpsl_average_clear(); | |
376 | if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) | |
377 | sharpsl_charge_on(); | |
378 | else if (sharpsl_pm.charge_mode == CHRG_ON) | |
379 | sharpsl_charge_off(); | |
380 | ||
381 | schedule_delayed_work(&sharpsl_bat, 0); | |
382 | } | |
383 | ||
384 | ||
d48898a3 | 385 | static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id) |
78731d33 DES |
386 | { |
387 | /* Delay the event slightly to debounce */ | |
388 | /* Must be a smaller delay than the chrg_full_isr below */ | |
389 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
390 | ||
391 | return IRQ_HANDLED; | |
392 | } | |
393 | ||
394 | static void sharpsl_chrg_full_timer(unsigned long data) | |
395 | { | |
396 | dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); | |
397 | ||
398 | sharpsl_pm.full_count++; | |
399 | ||
400 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
401 | dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); | |
402 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
403 | sharpsl_charge_off(); | |
404 | } else if (sharpsl_pm.full_count < 2) { | |
405 | dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); | |
406 | schedule_delayed_work(&toggle_charger, 0); | |
407 | } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { | |
408 | dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); | |
409 | schedule_delayed_work(&toggle_charger, 0); | |
410 | } else { | |
411 | sharpsl_charge_off(); | |
412 | sharpsl_pm.charge_mode = CHRG_DONE; | |
413 | dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); | |
414 | } | |
415 | } | |
416 | ||
417 | /* Charging Finished Interrupt (Not present on Corgi) */ | |
418 | /* Can trigger at the same time as an AC status change so | |
419 | delay until after that has been processed */ | |
d48898a3 | 420 | static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id) |
78731d33 DES |
421 | { |
422 | if (sharpsl_pm.flags & SHARPSL_SUSPENDED) | |
423 | return IRQ_HANDLED; | |
424 | ||
425 | /* delay until after any ac interrupt */ | |
426 | mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); | |
427 | ||
428 | return IRQ_HANDLED; | |
429 | } | |
430 | ||
d48898a3 | 431 | static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id) |
78731d33 DES |
432 | { |
433 | int is_fatal = 0; | |
434 | ||
435 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { | |
436 | dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); | |
437 | is_fatal = 1; | |
438 | } | |
439 | ||
440 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { | |
441 | dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); | |
442 | is_fatal = 1; | |
443 | } | |
444 | ||
445 | if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { | |
446 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
447 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
448 | } | |
449 | ||
450 | return IRQ_HANDLED; | |
451 | } | |
452 | ||
453 | /* | |
454 | * Maintain an average of the last 10 readings | |
455 | */ | |
456 | #define SHARPSL_CNV_VALUE_NUM 10 | |
457 | static int sharpsl_ad_index; | |
458 | ||
459 | static void sharpsl_average_clear(void) | |
460 | { | |
461 | sharpsl_ad_index = 0; | |
462 | } | |
463 | ||
464 | static int sharpsl_average_value(int ad) | |
465 | { | |
466 | int i, ad_val = 0; | |
467 | static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; | |
468 | ||
469 | if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { | |
470 | sharpsl_ad_index = 0; | |
471 | return ad; | |
472 | } | |
473 | ||
474 | sharpsl_ad[sharpsl_ad_index] = ad; | |
475 | sharpsl_ad_index++; | |
476 | if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { | |
b64b0b76 | 477 | for (i = 0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) |
78731d33 DES |
478 | sharpsl_ad[i] = sharpsl_ad[i+1]; |
479 | sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; | |
480 | } | |
b64b0b76 | 481 | for (i = 0; i < sharpsl_ad_index; i++) |
78731d33 DES |
482 | ad_val += sharpsl_ad[i]; |
483 | ||
b64b0b76 | 484 | return ad_val / sharpsl_ad_index; |
78731d33 DES |
485 | } |
486 | ||
487 | /* | |
488 | * Take an array of 5 integers, remove the maximum and minimum values | |
489 | * and return the average. | |
490 | */ | |
491 | static int get_select_val(int *val) | |
492 | { | |
493 | int i, j, k, temp, sum = 0; | |
494 | ||
495 | /* Find MAX val */ | |
496 | temp = val[0]; | |
b64b0b76 PM |
497 | j = 0; |
498 | for (i = 1; i < 5; i++) { | |
78731d33 DES |
499 | if (temp < val[i]) { |
500 | temp = val[i]; | |
501 | j = i; | |
502 | } | |
503 | } | |
504 | ||
505 | /* Find MIN val */ | |
506 | temp = val[4]; | |
b64b0b76 PM |
507 | k = 4; |
508 | for (i = 3; i >= 0; i--) { | |
78731d33 DES |
509 | if (temp > val[i]) { |
510 | temp = val[i]; | |
511 | k = i; | |
512 | } | |
513 | } | |
514 | ||
b64b0b76 PM |
515 | for (i = 0; i < 5; i++) |
516 | if (i != j && i != k) | |
78731d33 DES |
517 | sum += val[i]; |
518 | ||
519 | 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]); | |
520 | ||
b64b0b76 | 521 | return sum/3; |
78731d33 DES |
522 | } |
523 | ||
524 | static int sharpsl_check_battery_temp(void) | |
525 | { | |
526 | int val, i, buff[5]; | |
527 | ||
528 | /* Check battery temperature */ | |
b64b0b76 | 529 | for (i = 0; i < 5; i++) { |
78731d33 DES |
530 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); |
531 | sharpsl_pm.machinfo->measure_temp(1); | |
532 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
533 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); | |
534 | sharpsl_pm.machinfo->measure_temp(0); | |
535 | } | |
536 | ||
537 | val = get_select_val(buff); | |
538 | ||
539 | dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); | |
540 | if (val > sharpsl_pm.machinfo->charge_on_temp) { | |
541 | printk(KERN_WARNING "Not charging: temperature out of limits.\n"); | |
542 | return -1; | |
543 | } | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | #ifdef CONFIG_PM | |
549 | static int sharpsl_check_battery_voltage(void) | |
550 | { | |
551 | int val, i, buff[5]; | |
552 | ||
553 | /* disable charge, enable discharge */ | |
554 | sharpsl_pm.machinfo->charge(0); | |
555 | sharpsl_pm.machinfo->discharge(1); | |
556 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
557 | ||
558 | if (sharpsl_pm.machinfo->discharge1) | |
559 | sharpsl_pm.machinfo->discharge1(1); | |
560 | ||
561 | /* Check battery voltage */ | |
b64b0b76 | 562 | for (i = 0; i < 5; i++) { |
78731d33 DES |
563 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
564 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
565 | } | |
566 | ||
567 | if (sharpsl_pm.machinfo->discharge1) | |
568 | sharpsl_pm.machinfo->discharge1(0); | |
569 | ||
570 | sharpsl_pm.machinfo->discharge(0); | |
571 | ||
572 | val = get_select_val(buff); | |
573 | dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); | |
574 | ||
575 | if (val < sharpsl_pm.machinfo->charge_on_volt) | |
576 | return -1; | |
577 | ||
578 | return 0; | |
579 | } | |
580 | #endif | |
581 | ||
582 | static int sharpsl_ac_check(void) | |
583 | { | |
584 | int temp, i, buff[5]; | |
585 | ||
b64b0b76 | 586 | for (i = 0; i < 5; i++) { |
78731d33 DES |
587 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); |
588 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); | |
589 | } | |
590 | ||
591 | temp = get_select_val(buff); | |
b64b0b76 | 592 | dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n", temp); |
78731d33 DES |
593 | |
594 | if ((temp > sharpsl_pm.machinfo->charge_acin_high) || (temp < sharpsl_pm.machinfo->charge_acin_low)) { | |
b64b0b76 | 595 | dev_err(sharpsl_pm.dev, "Error: AC check failed: voltage %d.\n", temp); |
78731d33 DES |
596 | return -1; |
597 | } | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | #ifdef CONFIG_PM | |
603 | static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) | |
604 | { | |
605 | sharpsl_pm.flags |= SHARPSL_SUSPENDED; | |
606 | flush_scheduled_work(); | |
607 | ||
608 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
609 | sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; | |
610 | else | |
611 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
612 | ||
613 | return 0; | |
614 | } | |
615 | ||
616 | static int sharpsl_pm_resume(struct platform_device *pdev) | |
617 | { | |
618 | /* Clear the reset source indicators as they break the bootloader upon reboot */ | |
619 | RCSR = 0x0f; | |
620 | sharpsl_average_clear(); | |
621 | sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; | |
622 | sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
628 | { | |
b64b0b76 | 629 | dev_dbg(sharpsl_pm.dev, "Time is: %08x\n", RCNR); |
78731d33 | 630 | |
b64b0b76 | 631 | dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n", sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); |
78731d33 DES |
632 | /* not charging and AC-IN! */ |
633 | ||
634 | if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { | |
635 | dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); | |
636 | sharpsl_pm.charge_mode = CHRG_OFF; | |
637 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
638 | sharpsl_off_charge_battery(); | |
639 | } | |
640 | ||
641 | sharpsl_pm.machinfo->presuspend(); | |
642 | ||
643 | PEDR = 0xffffffff; /* clear it */ | |
644 | ||
645 | sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; | |
646 | if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { | |
647 | RTSR &= RTSR_ALE; | |
648 | RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; | |
b64b0b76 | 649 | dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n", RTAR); |
78731d33 DES |
650 | sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; |
651 | } else if (alarm_enable) { | |
652 | RTSR &= RTSR_ALE; | |
653 | RTAR = alarm_time; | |
b64b0b76 | 654 | dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n", RTAR); |
78731d33 DES |
655 | } else { |
656 | dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); | |
657 | } | |
658 | ||
659 | pxa_pm_enter(state); | |
660 | ||
661 | sharpsl_pm.machinfo->postsuspend(); | |
662 | ||
b64b0b76 | 663 | dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n", PEDR); |
78731d33 DES |
664 | } |
665 | ||
666 | static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
667 | { | |
b64b0b76 | 668 | if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable)) { |
78731d33 DES |
669 | if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { |
670 | dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); | |
671 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
672 | return 1; | |
673 | } | |
b64b0b76 | 674 | if (sharpsl_off_charge_battery()) { |
78731d33 DES |
675 | dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); |
676 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
677 | return 1; | |
678 | } | |
679 | dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); | |
680 | } | |
681 | ||
99f329a2 PM |
682 | if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || |
683 | (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL))) { | |
78731d33 DES |
684 | dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); |
685 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
686 | return 1; | |
687 | } | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | static int corgi_pxa_pm_enter(suspend_state_t state) | |
693 | { | |
694 | unsigned long alarm_time = RTAR; | |
695 | unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); | |
696 | ||
697 | dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); | |
698 | ||
699 | corgi_goto_sleep(alarm_time, alarm_status, state); | |
700 | ||
b64b0b76 | 701 | while (corgi_enter_suspend(alarm_time, alarm_status, state)) |
78731d33 DES |
702 | {} |
703 | ||
704 | if (sharpsl_pm.machinfo->earlyresume) | |
705 | sharpsl_pm.machinfo->earlyresume(); | |
706 | ||
707 | dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); | |
708 | ||
709 | return 0; | |
710 | } | |
711 | ||
712 | /* | |
713 | * Check for fatal battery errors | |
714 | * Fatal returns -1 | |
715 | */ | |
716 | static int sharpsl_fatal_check(void) | |
717 | { | |
718 | int buff[5], temp, i, acin; | |
719 | ||
720 | dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n"); | |
721 | ||
722 | /* Check AC-Adapter */ | |
723 | acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
724 | ||
725 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
726 | sharpsl_pm.machinfo->charge(0); | |
727 | udelay(100); | |
728 | sharpsl_pm.machinfo->discharge(1); /* enable discharge */ | |
729 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
730 | } | |
731 | ||
732 | if (sharpsl_pm.machinfo->discharge1) | |
733 | sharpsl_pm.machinfo->discharge1(1); | |
734 | ||
735 | /* Check battery : check inserting battery ? */ | |
b64b0b76 | 736 | for (i = 0; i < 5; i++) { |
78731d33 DES |
737 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
738 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
739 | } | |
740 | ||
741 | if (sharpsl_pm.machinfo->discharge1) | |
742 | sharpsl_pm.machinfo->discharge1(0); | |
743 | ||
744 | if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { | |
745 | udelay(100); | |
746 | sharpsl_pm.machinfo->charge(1); | |
747 | sharpsl_pm.machinfo->discharge(0); | |
748 | } | |
749 | ||
750 | temp = get_select_val(buff); | |
751 | 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)); | |
752 | ||
753 | if ((acin && (temp < sharpsl_pm.machinfo->fatal_acin_volt)) || | |
754 | (!acin && (temp < sharpsl_pm.machinfo->fatal_noacin_volt))) | |
755 | return -1; | |
756 | return 0; | |
757 | } | |
758 | ||
759 | static int sharpsl_off_charge_error(void) | |
760 | { | |
761 | dev_err(sharpsl_pm.dev, "Offline Charger: Error occurred.\n"); | |
762 | sharpsl_pm.machinfo->charge(0); | |
763 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
764 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
765 | return 1; | |
766 | } | |
767 | ||
768 | /* | |
769 | * Charging Control while suspended | |
770 | * Return 1 - go straight to sleep | |
771 | * Return 0 - sleep or wakeup depending on other factors | |
772 | */ | |
773 | static int sharpsl_off_charge_battery(void) | |
774 | { | |
775 | int time; | |
776 | ||
777 | dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); | |
778 | ||
779 | if (sharpsl_pm.charge_mode == CHRG_OFF) { | |
780 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); | |
781 | ||
782 | /* AC Check */ | |
783 | if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) | |
784 | return sharpsl_off_charge_error(); | |
785 | ||
786 | /* Start Charging */ | |
787 | sharpsl_pm_led(SHARPSL_LED_ON); | |
788 | sharpsl_pm.machinfo->charge(0); | |
789 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
790 | sharpsl_pm.machinfo->charge(1); | |
791 | ||
792 | sharpsl_pm.charge_mode = CHRG_ON; | |
793 | sharpsl_pm.full_count = 0; | |
794 | ||
795 | return 1; | |
796 | } else if (sharpsl_pm.charge_mode != CHRG_ON) { | |
797 | return 1; | |
798 | } | |
799 | ||
800 | if (sharpsl_pm.full_count == 0) { | |
801 | int time; | |
802 | ||
803 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); | |
804 | ||
805 | if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) | |
806 | return sharpsl_off_charge_error(); | |
807 | ||
808 | sharpsl_pm.machinfo->charge(0); | |
809 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
810 | sharpsl_pm.machinfo->charge(1); | |
811 | sharpsl_pm.charge_mode = CHRG_ON; | |
812 | ||
813 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
814 | ||
815 | time = RCNR; | |
b64b0b76 | 816 | while (1) { |
78731d33 DES |
817 | /* Check if any wakeup event had occurred */ |
818 | if (sharpsl_pm.machinfo->charger_wakeup() != 0) | |
819 | return 0; | |
820 | /* Check for timeout */ | |
821 | if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) | |
822 | return 1; | |
823 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
824 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n"); | |
825 | sharpsl_pm.full_count++; | |
826 | sharpsl_pm.machinfo->charge(0); | |
827 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
828 | sharpsl_pm.machinfo->charge(1); | |
829 | return 1; | |
830 | } | |
831 | } | |
832 | } | |
833 | ||
834 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); | |
835 | ||
836 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
837 | ||
838 | time = RCNR; | |
b64b0b76 | 839 | while (1) { |
78731d33 | 840 | /* Check if any wakeup event had occurred */ |
b64b0b76 | 841 | if (sharpsl_pm.machinfo->charger_wakeup()) |
78731d33 DES |
842 | return 0; |
843 | /* Check for timeout */ | |
844 | if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { | |
845 | if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { | |
846 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); | |
847 | sharpsl_pm.full_count = 0; | |
848 | } | |
849 | sharpsl_pm.full_count++; | |
850 | return 1; | |
851 | } | |
852 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
853 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); | |
854 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
855 | sharpsl_pm.machinfo->charge(0); | |
856 | sharpsl_pm.charge_mode = CHRG_DONE; | |
857 | return 1; | |
858 | } | |
859 | } | |
860 | } | |
861 | #else | |
862 | #define sharpsl_pm_suspend NULL | |
863 | #define sharpsl_pm_resume NULL | |
864 | #endif | |
865 | ||
866 | static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
867 | { | |
b64b0b76 | 868 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_percent); |
78731d33 DES |
869 | } |
870 | ||
871 | static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
872 | { | |
b64b0b76 | 873 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_voltage); |
78731d33 DES |
874 | } |
875 | ||
876 | static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); | |
877 | static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); | |
878 | ||
879 | extern void (*apm_get_power_status)(struct apm_power_info *); | |
880 | ||
881 | static void sharpsl_apm_get_power_status(struct apm_power_info *info) | |
882 | { | |
883 | info->ac_line_status = sharpsl_pm.battstat.ac_status; | |
884 | ||
885 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
886 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
887 | else | |
888 | info->battery_status = sharpsl_pm.battstat.mainbat_status; | |
889 | ||
890 | info->battery_flag = (1 << info->battery_status); | |
891 | info->battery_life = sharpsl_pm.battstat.mainbat_percent; | |
892 | } | |
893 | ||
894 | #ifdef CONFIG_PM | |
895 | static struct platform_suspend_ops sharpsl_pm_ops = { | |
51cdd928 PM |
896 | .prepare = pxa_pm_prepare, |
897 | .finish = pxa_pm_finish, | |
78731d33 DES |
898 | .enter = corgi_pxa_pm_enter, |
899 | .valid = suspend_valid_only_mem, | |
900 | }; | |
901 | #endif | |
902 | ||
903 | static int __init sharpsl_pm_probe(struct platform_device *pdev) | |
904 | { | |
905 | int ret; | |
906 | ||
907 | if (!pdev->dev.platform_data) | |
908 | return -EINVAL; | |
909 | ||
910 | sharpsl_pm.dev = &pdev->dev; | |
911 | sharpsl_pm.machinfo = pdev->dev.platform_data; | |
912 | sharpsl_pm.charge_mode = CHRG_OFF; | |
913 | sharpsl_pm.flags = 0; | |
914 | ||
915 | init_timer(&sharpsl_pm.ac_timer); | |
916 | sharpsl_pm.ac_timer.function = sharpsl_ac_timer; | |
917 | ||
918 | init_timer(&sharpsl_pm.chrg_full_timer); | |
919 | sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; | |
920 | ||
921 | led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger); | |
922 | ||
923 | sharpsl_pm.machinfo->init(); | |
924 | ||
d5af2778 DES |
925 | gpio_request(sharpsl_pm.machinfo->gpio_acin, "AC IN"); |
926 | gpio_direction_input(sharpsl_pm.machinfo->gpio_acin); | |
927 | gpio_request(sharpsl_pm.machinfo->gpio_batfull, "Battery Full"); | |
928 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batfull); | |
929 | gpio_request(sharpsl_pm.machinfo->gpio_batlock, "Battery Lock"); | |
930 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock); | |
d48898a3 DES |
931 | |
932 | /* Register interrupt handlers */ | |
54525372 | 933 | 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 |
934 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin)); |
935 | } | |
d48898a3 | 936 | |
54525372 | 937 | 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 |
938 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock)); |
939 | } | |
d48898a3 DES |
940 | |
941 | if (sharpsl_pm.machinfo->gpio_fatal) { | |
54525372 | 942 | 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 |
943 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal)); |
944 | } | |
d48898a3 DES |
945 | } |
946 | ||
b64b0b76 | 947 | if (sharpsl_pm.machinfo->batfull_irq) { |
d48898a3 | 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); |