1 /* drivers/power/rk30_adc_battery.c
3 * battery detect driver for the rk30
5 * This software is licensed under the terms of the GNU General Public
6 * License version 2, as published by the Free Software Foundation, and
7 * may be copied, distributed, and modified under those terms.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 #include <linux/module.h>
17 #include <linux/err.h>
18 #include <linux/platform_device.h>
19 #include <linux/power_supply.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/types.h>
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28 #include <mach/gpio.h>
29 #include <linux/adc.h>
30 #include <mach/iomux.h>
31 #include <mach/board.h>
32 #include <linux/delay.h>
33 #include <linux/ktime.h>
34 #include <linux/slab.h>
35 #include <linux/syscalls.h>
37 #include <linux/wakelock.h>
40 #define DBG(x...) printk(x)
45 static int rk30_battery_dbg_level = 1;
46 module_param_named(dbg_level, rk30_battery_dbg_level, int, 0644);
47 #define pr_bat( args...) \
49 if (rk30_battery_dbg_level) { \
55 /*******************ÒÔϲÎÊý¿ÉÒÔÐÞ¸Ä******************************/
56 #define TIMER_MS_COUNTS 1000 //¶¨Ê±Æ÷µÄ³¤¶Èms
57 //ÒÔϲÎÊýÐèÒª¸ù¾Ýʵ¼Ê²âÊÔµ÷Õû
58 #define SLOPE_SECOND_COUNTS 15 //ͳ¼ÆµçѹбÂʵÄʱ¼ä¼ä¸ôs
59 #define DISCHARGE_MIN_SECOND 45 //×î¿ì·Åµçµç1%ʱ¼ä
60 #define CHARGE_MIN_SECOND 45 //×î¿ì³äµçµç1%ʱ¼ä
61 #define CHARGE_MID_SECOND 90 //ÆÕͨ³äµçµç1%ʱ¼ä
62 #define CHARGE_MAX_SECOND 250 //×³äµçµç1%ʱ¼ä
63 #define CHARGE_FULL_DELAY_TIMES 10 //³äµçÂú¼ì²â·À¶¶Ê±¼ä
64 #define USBCHARGE_IDENTIFY_TIMES 5 //²åÈëUSB»ìÁ÷£¬pcʶ±ð¼ì²âʱ¼ä
66 #define NUM_VOLTAGE_SAMPLE ((SLOPE_SECOND_COUNTS * 1000) / TIMER_MS_COUNTS)
67 #define NUM_DISCHARGE_MIN_SAMPLE ((DISCHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
68 #define NUM_CHARGE_MIN_SAMPLE ((CHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
69 #define NUM_CHARGE_MID_SAMPLE ((CHARGE_MID_SECOND * 1000) / TIMER_MS_COUNTS)
70 #define NUM_CHARGE_MAX_SAMPLE ((CHARGE_MAX_SECOND * 1000) / TIMER_MS_COUNTS)
71 #define NUM_CHARGE_FULL_DELAY_TIMES ((CHARGE_FULL_DELAY_TIMES * 1000) / TIMER_MS_COUNTS) //³äµçÂú״̬³ÖÐøʱ¼ä³¤¶È
72 #define NUM_USBCHARGE_IDENTIFY_TIMES ((USBCHARGE_IDENTIFY_TIMES * 1000) / TIMER_MS_COUNTS) //³äµçÂú״̬³ÖÐøʱ¼ä³¤¶È
74 #define BAT_2V5_VALUE 2500
77 #define BATT_FILENAME "/data/bat_last_capacity.dat"
79 static struct wake_lock batt_wake_lock;
89 #ifdef CONFIG_BATTERY_RK30_VOL3V8
91 #define BATT_MAX_VOL_VALUE 4120 //ÂúµçʱµÄµç³Øµçѹ
92 #define BATT_ZERO_VOL_VALUE 3400 //¹Ø»úʱµÄµç³Øµçѹ
93 #define BATT_NOMAL_VOL_VALUE 3800
95 #define BAT_PULL_UP_R 200
96 #define BAT_PULL_DOWN_R 200
98 static struct batt_vol_cal batt_table[] = {
99 {0,3400,3520},{1,3420,3525},{2,3420,3575},{3,3475,3600},{5,3505,3620},{7,3525,3644},
100 {9,3540,3662},{11,3557,3670},{13,3570,3684},{15,3580,3700},{17,3610,3715},
101 {19,3630,3720},{21,3640,3748},{23,3652,3756},{25,3662,3775},{27,3672,3790},
102 {29,3680,3810},{31,3687,3814},{33,3693,3818},{35,3699,3822},{37,3705,3825},
103 {39,3710,3830},{41,3714,3832},{43,3718,3834},{45,3722,3836},{47,3726,3837},
104 {49,3730,3839},{51,3734,3841},{53,3738,3842},{55,3742,3844},{57,3746,3844},
105 {59,3750,3855},{61,3756,3860},{63,3764,3864},{65,3774,3871},{67,3786,3890},
106 {69,3800,3910},{71,3808,3930},{73,3817,3977},{75,3827,3977},{77,3845,3997},
107 {79,3950,4030},{81,3964,4047},{83,3982,4064},{85,4002,4080},{87,4026,4096},
108 {89,4030,4132},{91,4034,4144},{93,4055,4150},{95,4085,4195},{97,4085,4195},{100,4120,4200},
111 #define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
112 #define BATT_ZERO_VOL_VALUE 6800 // power down voltage
113 #define BATT_NOMAL_VOL_VALUE 7600
115 //¶¨ÒåADC²ÉÑù·Öѹµç×裬ÒÔʵ¼ÊֵΪ׼£¬µ¥Î»K
117 #define BAT_PULL_UP_R 300
118 #define BAT_PULL_DOWN_R 100
120 static struct batt_vol_cal batt_table[] = {
121 {0,6800,7400}, {1,6840,7440}, {2,6880,7480}, {3,6950,7450}, {5,7010,7510}, {7,7050,7550},
122 {9,7080,7580}, {11,7104,7604}, {13,7140,7640}, {15,7160,7660}, {17,7220,7720},
123 {19,7260,7760}, {21,7280,7780}, {23,7304,7802}, {25,7324,7824}, {27,7344,7844},
124 {29,7360,7860}, {31,7374,7874}, {33,7386,7886}, {35,7398,7898}, {37,7410,7910},//500
125 {39,7420,7920}, {41,7424,7928}, {43,7436,7947}, {45,7444,7944}, {47,7450,7958}, //508
126 {49,7460,7965}, {51,7468,7975}, {53, 7476,7990}, {55,7482,8000}, {57,7492,8005}, // 5 14
127 {59,7500,8011}, {61,7510,8033}, {63,7528,8044}, {65,7548,8055}, {67,7560,8066},//506
128 {69,7600,8070}, {71,7618,8075}, {73,7634,8080}, {75,7654,8085}, {77,7690,8100}, //400
129 {79,7900,8180}, {81,7920,8210}, {83,7964,8211}, {85,8000,8214}, {87,8002,8218},//290
130 {89,8012, 8220}, {91,8022,8235}, {93,8110,8260}, {95,8140,8290}, {97,8170,8300}, {100,8200 ,8310},//110
137 #define BATT_NUM ARRAY_SIZE(batt_table)
145 #include <linux/fs.h>
146 int battery_dbg_level = 0;
147 int battery_test_flag = 0;
148 int gVoltageCnt = 3400;
149 int gDoubleVoltageCnt = 6800;
150 #ifdef CONFIG_BATTERY_RK30_VOL3V8
151 #define BATT_MAX_VOL_VALUE 4120 //ÂúµçʱµÄµç³Øµçѹ
152 #define BATT_ZERO_VOL_VALUE 3400 //¹Ø»úʱµÄµç³Øµçѹ
153 #define BATT_NOMAL_VOL_VALUE 3800
155 //int pull_up_res =100;
156 //int pull_down_res = 100;
159 static int batt_table[2*BATT_NUM+6] =
161 0x4B434F52,0x7461625F,0x79726574,0,100,100,
162 3496, 3548, 3599, 3626, 3655, 3697, 3751, 3812, 3877, 3949, 4030, //discharge
163 3540, 3785, 3842, 3861, 3915, 3980, 4041, 4135, 4169, 4175, 4185 //charge
165 #define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
167 #define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
168 #define BATT_ZERO_VOL_VALUE 6800 // power down voltage
169 #define BATT_NOMAL_VOL_VALUE 7600
170 //int pull_up_res =300;
171 //int pull_down_res = 100;
172 //¶¨ÒåADC²ÉÑù·Öѹµç×裬ÒÔʵ¼ÊֵΪ׼£¬µ¥Î»K
174 static int batt_table[2*BATT_NUM+6] =
176 0x4B434F52,0x7461625F,0x79726574,1,300,100,
177 6800,7242,7332,7404,7470,7520,7610,7744,7848,8016,8284,
178 7630, 7754, 7852, 7908, 7956, 8024, 8112, 8220, 8306, 8318, 8328
180 #define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
185 //#define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (BAT_PULL_UP_R + BAT_PULL_DOWN_R)) / (1024 * BAT_PULL_DOWN_R))
188 unsigned long gSecondsCnt = 0;
190 char gDischargeFlag[3] = {"on "};
193 /********************************************************************************/
195 extern int dwc_vbus_status(void);
196 extern int get_msc_connect_flag(void);
198 struct rk30_adc_battery_data {
201 //struct timer_list timer;
202 struct workqueue_struct *wq;
203 struct delayed_work delay_work;
204 struct work_struct dcwakeup_work;
205 struct work_struct lowerpower_work;
208 struct rk30_adc_battery_platform_data *pdata;
212 struct adc_client *client;
214 int adc_samples[NUM_VOLTAGE_SAMPLE+2];
224 int old_charge_level;
226 int gBatCapacityDisChargeCnt;
227 int gBatCapacityChargeCnt;
230 int suspend_capacity;
235 static struct rk30_adc_battery_data *gBatteryData;
239 #define BAT_ADC_TABLE_LEN 11
240 static ssize_t bat_param_read(struct device *dev,struct device_attribute *attr, char *buf)
244 for(i=0;i<BATT_NUM;i++)
245 printk("i=%d batt_table=%d\n",i+6,batt_table[i+6]);
247 for(i=0;i<BATT_NUM;i++)
248 printk("i=%d batt_table=%d\n",i+17,batt_table[i+17]);
252 DEVICE_ATTR(batparam, 0664, bat_param_read,NULL);
255 static ssize_t rkbatt_show_debug_attrs(struct device *dev,
256 struct device_attribute *attr, char *buf)
258 return sprintf(buf, "%d\n", battery_dbg_level);
261 static ssize_t rkbatt_restore_debug_attrs(struct device *dev,
262 struct device_attribute *attr,
263 const char *buf, size_t size)
267 sscanf(buf, "%d", &liTmp);
269 if(liTmp != 0 && liTmp != 1)
271 dev_err(dev, "rk29adc_restore_debug_attrs err\n");
275 battery_dbg_level = liTmp;
280 static ssize_t rkbatt_show_state_attrs(struct device *dev,
281 struct device_attribute *attr,
284 struct rk30_adc_battery_platform_data *pdata = gBatteryData->pdata;
287 "gBatVol=%d,gBatCap=%d,charge_ok=%d,%s\n",
288 gBatteryData->bat_voltage,gBatteryData->bat_capacity,
289 gpio_get_value(pdata->charge_ok_pin),gDischargeFlag);
292 static ssize_t rkbatt_restore_state_attrs(struct device *dev,
293 struct device_attribute *attr,
294 const char *buf, size_t size)
299 static ssize_t rkbatt_show_value_attrs(struct device *dev,
300 struct device_attribute *attr, char *buf)
302 return sprintf(buf, "pull_up_res =%d,\npull_down_res=%d\n", batt_table[4],batt_table[5]);
305 static ssize_t rkbatt_restore_value_attrs(struct device *dev,
306 struct device_attribute *attr,
307 const char *buf, size_t size)
312 sscanf(buf, "%d,%d", &liUp,&liDown);
314 if(liUp != 0 && liDown != 0)
316 batt_table[4] = liUp;
317 batt_table[5] = liDown;
326 static ssize_t rkbatt_show_flag_attrs(struct device *dev,
327 struct device_attribute *attr, char *buf)
329 return sprintf(buf, "rk29_battery_test_flag=%d\n", battery_test_flag);
331 static ssize_t rkbatt_restore_flag_attrs(struct device *dev,
332 struct device_attribute *attr,
333 const char *buf, size_t size)
337 sscanf(buf, "%d", &liFlag);
341 battery_test_flag = liFlag;
345 static struct device_attribute rkbatt_attrs[] = {
346 __ATTR(state, 0664, rkbatt_show_state_attrs, rkbatt_restore_state_attrs),
347 __ATTR(debug, 0664, rkbatt_show_debug_attrs, rkbatt_restore_debug_attrs),
348 __ATTR(value, 0666, rkbatt_show_value_attrs, rkbatt_restore_value_attrs),
349 __ATTR(flag, 0666, rkbatt_show_flag_attrs, rkbatt_restore_flag_attrs),
352 static int create_sysfs_interfaces(struct device *dev)
355 for (liTmep = 0; liTmep < ARRAY_SIZE(rkbatt_attrs); liTmep++)
357 if (device_create_file(dev, rkbatt_attrs + liTmep))
366 for ( ; liTmep >= 0; liTmep--)
368 device_remove_file(dev, rkbatt_attrs + liTmep);
371 dev_err(dev, "%s:Unable to create sysfs interface\n", __func__);
383 BATTERY_CAPACITY = 3,
384 BATTERY_AC_ONLINE = 4,
385 BATTERY_STATUS_CHANGED = 5,
386 AC_STATUS_CHANGED = 6,
387 BATTERY_INT_STATUS = 7,
388 BATTERY_INT_ENABLE = 8,
401 static int rk30_adc_battery_load_capacity(void)
404 int* p = (int *)value;
405 long fd = sys_open(BATT_FILENAME,O_RDONLY,0);
408 pr_bat("rk30_adc_battery_load_capacity: open file /data/bat_last_capacity.dat failed\n");
412 sys_read(fd,(char __user *)value,4);
418 static void rk30_adc_battery_put_capacity(int loadcapacity)
421 int* p = (int *)value;
422 long fd = sys_open(BATT_FILENAME,O_CREAT | O_RDWR,0);
425 pr_bat("rk30_adc_battery_put_capacity: open file /data/bat_last_capacity.dat failed\n");
430 sys_write(fd, (const char __user *)value, 4);
435 static void rk30_adc_battery_charge_enable(struct rk30_adc_battery_data *bat)
437 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
439 if (pdata->charge_set_pin != INVALID_GPIO){
440 gpio_direction_output(pdata->charge_set_pin, pdata->charge_set_level);
444 static void rk30_adc_battery_charge_disable(struct rk30_adc_battery_data *bat)
446 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
448 if (pdata->charge_set_pin != INVALID_GPIO){
449 gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
453 //extern int suspend_flag;
454 static int rk30_adc_battery_get_charge_level(struct rk30_adc_battery_data *bat)
457 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
459 #if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
460 if (pdata->dc_det_pin != INVALID_GPIO){
461 if (gpio_get_value (pdata->dc_det_pin) == pdata->dc_det_level){
467 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
471 if (1 == dwc_vbus_status()) { //¼ì²âµ½USB²åÈ룬µ«ÊÇÎÞ·¨Ê¶±ðÊÇ·ñÊdzäµçÆ÷
472 //ͨ¹ýÑÓʱ¼ì²âPCʶ±ð±êÖ¾£¬Èç¹û³¬Ê±¼ì²â²»µ½£¬ËµÃ÷Êdzäµç
473 if (0 == get_msc_connect_flag()){ //²åÈë³äµçÆ÷ʱ¼ä´óÓÚÒ»¶¨Ê±¼äÖ®ºó£¬¿ªÊ¼½øÈë³äµç״̬
474 if (++gBatUsbChargeCnt >= NUM_USBCHARGE_IDENTIFY_TIMES){
475 gBatUsbChargeCnt = NUM_USBCHARGE_IDENTIFY_TIMES + 1;
478 } //·ñÔò£¬²»½øÈë³äµçģʽ
481 gBatUsbChargeCnt = 0;
482 if (2 == dwc_vbus_status()) {
491 //int old_charge_level;
492 static int rk30_adc_battery_status_samples(struct rk30_adc_battery_data *bat)
496 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
498 charge_level = rk30_adc_battery_get_charge_level(bat);
500 //¼ì²â³äµç״̬±ä»¯Çé¿ö
501 if (charge_level != bat->old_charge_level){
502 bat->old_charge_level = charge_level;
506 rk30_adc_battery_charge_enable(bat);
509 rk30_adc_battery_charge_disable(bat);
511 bat->bat_status_cnt = 0; //״̬±ä»¯¿ªÊ¼¼ÆÊý
514 if(charge_level == 0){
517 bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
521 if (pdata->charge_ok_pin == INVALID_GPIO){ //no charge_ok_pin
523 if (bat->bat_capacity == 100){
524 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
525 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
530 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
533 else{ // pin of charge_ok_pin
534 if (gpio_get_value(pdata->charge_ok_pin) != pdata->charge_ok_level){
537 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
540 //¼ì²âµ½³äµçÂúµçƽ±êÖ¾
543 if (bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) {
544 bat->full_times = NUM_CHARGE_FULL_DELAY_TIMES + 1;
547 if ((bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) && (bat->bat_capacity >= 99)){
548 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
549 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
550 bat->bat_capacity = 100;
555 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
564 static int *pSamples;
565 static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat)
568 int i,*pStart = bat->adc_samples, num = 0;
569 int level = rk30_adc_battery_get_charge_level(bat);
572 value = bat->adc_val;
573 adc_async_read(bat->client);
575 *pSamples++ = adc_to_voltage(value);
577 bat->bat_status_cnt++;
578 if (bat->bat_status_cnt > NUM_VOLTAGE_SAMPLE) bat->bat_status_cnt = NUM_VOLTAGE_SAMPLE + 1;
580 num = pSamples - pStart;
582 if (num >= NUM_VOLTAGE_SAMPLE){
584 num = NUM_VOLTAGE_SAMPLE;
589 for (i = 0; i < num; i++){
590 value += bat->adc_samples[i];
592 bat->bat_voltage = value / num;
595 if(battery_test_flag == 0)
598 if(bat->bat_voltage >= batt_table[2*BATT_NUM +5]+ 10)
599 bat->bat_voltage = batt_table[2*BATT_NUM +5] + 10;
600 else if(bat->bat_voltage <= batt_table[BATT_NUM +6] - 10)
601 bat->bat_voltage = batt_table[BATT_NUM +6] - 10;
604 if(bat->bat_voltage >= batt_table[BATT_NUM +5]+ 10)
605 bat->bat_voltage = batt_table[BATT_NUM +5] + 10;
606 else if(bat->bat_voltage <= batt_table[6] - 10)
607 bat->bat_voltage = batt_table[6] - 10;
610 }else if(battery_test_flag == 2)
611 /**************************************************/
613 if(batt_table[3] == 0)
615 if(bat->bat_voltage < 3400)
617 //printk("gSecondsCnt=%ld,get_seconds()=%ld,(get_seconds() - gSecondsCnt)=%ld-------------------1\n",gSecondsCnt,get_seconds(),(get_seconds() - gSecondsCnt));
618 if((get_seconds() - gSecondsCnt) > 30)
620 gSecondsCnt = get_seconds();
621 //printk("gSecondsCnt=%ld,gVoltageCnt=%d,(gVoltageCnt - bat->bat_voltage)=%d,bat->bat_voltage=%d-------------------2\n",gSecondsCnt,gVoltageCnt,(gVoltageCnt - bat->bat_voltage),bat->bat_voltage);
622 if((gVoltageCnt - bat->bat_voltage) > 15)
624 //gVoltageCnt = bat->bat_voltage;
625 //printk("gVoltageCnt=%d-------------------3\n",gVoltageCnt);
626 strncpy(gDischargeFlag, "off" ,3);
628 gVoltageCnt = bat->bat_voltage;
633 if(bat->bat_voltage < 3400)
635 bat->bat_voltage = 3400;
640 if(bat->bat_voltage < 6800)
642 //printk("gSecondsCnt=%ld,get_seconds()=%ld,(get_seconds() - gSecondsCnt)=%ld-------------------1\n",gSecondsCnt,get_seconds(),(get_seconds() - gSecondsCnt));
643 if((get_seconds() - gSecondsCnt) > 30)
645 gSecondsCnt = get_seconds();
646 //printk("gSecondsCnt=%ld,gVoltageCnt=%d,(gVoltageCnt - bat->bat_voltage)=%d,bat->bat_voltage=%d-------------------2\n",gSecondsCnt,gVoltageCnt,(gVoltageCnt - bat->bat_voltage),bat->bat_voltage);
647 if((gDoubleVoltageCnt - bat->bat_voltage) > 30)
649 //gVoltageCnt = bat->bat_voltage;
650 //printk("gVoltageCnt=%d-------------------3\n",gVoltageCnt);
651 strncpy(gDischargeFlag, "off" ,3);
653 gDoubleVoltageCnt =bat->bat_voltage;
656 if(bat->bat_voltage < 6800)
658 bat->bat_voltage = 6800;
662 /****************************************************/
664 static int rk30_adc_battery_voltage_to_capacity(struct rk30_adc_battery_data *bat, int BatVoltage)
672 if (rk30_adc_battery_get_charge_level(bat)){ //charge
673 if(BatVoltage >= (p[2*BATT_NUM +5])){
677 if(BatVoltage <= (p[BATT_NUM +6])){
681 for(i = BATT_NUM +6; i <2*BATT_NUM +6; i++){
683 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
684 capacity = (i-BATT_NUM +6)*10 + ((BatVoltage - p[i]) * 10)/ (p[i+1]- p[i]);
693 if(BatVoltage >= (p[BATT_NUM +5])){
697 if(BatVoltage <= (p[6])){
701 for(i = 6; i < BATT_NUM +6; i++){
702 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
703 capacity = (i-6)*10+ ((BatVoltage - p[i]) *10 )/ (p[i+1]- p[i]) ;
716 static void rk30_adc_battery_capacity_samples(struct rk30_adc_battery_data *bat)
719 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
721 //³ä·Åµç״̬±ä»¯ºó£¬BufferÌîÂú֮ǰ£¬²»¸üÐÂ
722 if (bat->bat_status_cnt < NUM_VOLTAGE_SAMPLE) {
723 bat->gBatCapacityDisChargeCnt = 0;
724 bat->gBatCapacityChargeCnt = 0;
728 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
730 if (rk30_adc_battery_get_charge_level(bat)){
731 if (capacity > bat->bat_capacity){
732 //ʵ¼Ê²ÉÑùµ½µÄÈÝÁ¿±ÈÏÔʾµÄÈÝÁ¿´ó£¬Öð¼¶ÉÏÉý
733 if (++(bat->gBatCapacityDisChargeCnt) >= NUM_CHARGE_MIN_SAMPLE){
734 bat->gBatCapacityDisChargeCnt = 0;
735 if (bat->bat_capacity < 99){
740 bat->gBatCapacityChargeCnt = 0;
742 else{ // ʵ¼ÊµÄÈÝÁ¿±È²ÉÑù±È ÏÔʾµÄÈÝÁ¿Ð¡
743 bat->gBatCapacityDisChargeCnt = 0;
744 (bat->gBatCapacityChargeCnt)++;
746 if (pdata->charge_ok_pin != INVALID_GPIO){
747 if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
748 //¼ì²âµ½µç³Ø³äÂú±êÖ¾£¬Í¬Ê±³¤Ê±¼äÄÚ³äµçµçѹÎޱ仯£¬¿ªÊ¼Æô¶¯¼Æʱ³äµç£¬¿ìËÙÉÏÉýÈÝÁ¿
749 if (bat->gBatCapacityChargeCnt >= NUM_CHARGE_MIN_SAMPLE){
750 bat->gBatCapacityChargeCnt = 0;
751 if (bat->bat_capacity < 99){
759 if (capacity > capacitytmp){
760 //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
761 gBatCapacityChargeCnt = 0;
763 else if (/*bat->bat_capacity >= 85) &&*/ (gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
764 gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
766 if (bat->bat_capacity < 99){
772 #else // ·ÀÖ¹µç³ØÀÏ»¯ºó³öÏֳ岻ÂúµÄÇé¿ö£¬
773 if (capacity > bat->capacitytmp){
774 //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
775 bat->gBatCapacityChargeCnt = 0;
779 if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
780 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
782 if (bat->bat_capacity < 99){
793 //ûÓгäµçÂú¼ì²â½Å£¬³¤Ê±¼äÄÚµçѹÎޱ仯£¬¶¨Ê±Æ÷Ä£Äâ³äµç
794 if (capacity > bat->capacitytmp){
795 //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
796 bat->gBatCapacityChargeCnt = 0;
800 if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
801 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
803 if (bat->bat_capacity < 99){
815 //·Åµçʱ,Ö»ÔÊÐíµçѹϽµ
816 if (capacity < bat->bat_capacity){
817 if (++(bat->gBatCapacityDisChargeCnt) >= NUM_DISCHARGE_MIN_SAMPLE){
818 bat->gBatCapacityDisChargeCnt = 0;
819 if (bat->bat_capacity > 0){
820 bat->bat_capacity-- ;
826 bat->gBatCapacityDisChargeCnt = 0;
828 bat->gBatCapacityChargeCnt = 0;
830 bat->capacitytmp = capacity;
833 //static int poweron_check = 0;
834 static void rk30_adc_battery_poweron_capacity_check(void)
837 int new_capacity, old_capacity;
839 new_capacity = gBatteryData->bat_capacity;
840 old_capacity = rk30_adc_battery_load_capacity();
841 if ((old_capacity <= 0) || (old_capacity >= 100)){
842 old_capacity = new_capacity;
845 if (gBatteryData->bat_status == POWER_SUPPLY_STATUS_FULL){
846 if (new_capacity > 80){
847 gBatteryData->bat_capacity = 100;
850 else if (gBatteryData->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
853 // //1£©³¤Ê±¼ä¹Ø»ú·ÅÖú󣬿ª»úºó¶ÁÈ¡µÄÈÝÁ¿Ô¶Ô¶´óÓÚʵ¼ÊÈÝÁ¿Ôõô°ì£¿
854 // //2£©Èç¹û²»ÕâÑù×ö£¬¶Ìʱ¼ä¹Ø»úÔÙ¿ª»ú£¬Ç°ºóÈÝÁ¿²»Ò»ÖÂÓÖ¸ÃÔõô°ì£¿
855 // //3£©Ò»ÏÂÄÇÖÖ·½Ê½ºÏÊÊ£¿
856 //gBatteryData->bat_capacity = new_capacity;
857 gBatteryData->bat_capacity = (new_capacity > old_capacity) ? new_capacity : old_capacity;
860 if(new_capacity > old_capacity + 50 )
861 gBatteryData->bat_capacity = new_capacity;
863 gBatteryData->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; //avoid the value of capacity increase
867 //printk("capacity = %d, new_capacity = %d, old_capacity = %d\n",gBatteryData->bat_capacity, new_capacity, old_capacity);
869 gBatteryData->bat_change = 1;
872 #if defined(CONFIG_BATTERY_RK30_USB_CHARGE)
873 static int rk30_adc_battery_get_usb_property(struct power_supply *psy,
874 enum power_supply_property psp,
875 union power_supply_propval *val)
877 charger_type_t charger;
878 charger = CHARGER_USB;
881 case POWER_SUPPLY_PROP_ONLINE:
882 if (psy->type == POWER_SUPPLY_TYPE_USB)
883 val->intval = get_msc_connect_flag();
884 printk("%s:%d\n",__FUNCTION__,val->intval);
895 static enum power_supply_property rk30_adc_battery_usb_props[] = {
897 POWER_SUPPLY_PROP_ONLINE,
900 static struct power_supply rk30_usb_supply =
903 .type = POWER_SUPPLY_TYPE_USB,
905 .get_property = rk30_adc_battery_get_usb_property,
907 .properties = rk30_adc_battery_usb_props,
908 .num_properties = ARRAY_SIZE(rk30_adc_battery_usb_props),
912 #if defined(CONFIG_BATTERY_RK30_AC_CHARGE)
913 static irqreturn_t rk30_adc_battery_dc_wakeup(int irq, void *dev_id)
915 queue_work(gBatteryData->wq, &gBatteryData->dcwakeup_work);
920 static int rk30_adc_battery_get_ac_property(struct power_supply *psy,
921 enum power_supply_property psp,
922 union power_supply_propval *val)
925 charger_type_t charger;
926 charger = CHARGER_USB;
928 case POWER_SUPPLY_PROP_ONLINE:
929 if (psy->type == POWER_SUPPLY_TYPE_MAINS)
931 if (rk30_adc_battery_get_charge_level(gBatteryData))
940 DBG("%s:%d\n",__FUNCTION__,val->intval);
951 static enum power_supply_property rk30_adc_battery_ac_props[] =
953 POWER_SUPPLY_PROP_ONLINE,
956 static struct power_supply rk30_ac_supply =
959 .type = POWER_SUPPLY_TYPE_MAINS,
961 .get_property = rk30_adc_battery_get_ac_property,
963 .properties = rk30_adc_battery_ac_props,
964 .num_properties = ARRAY_SIZE(rk30_adc_battery_ac_props),
967 static void rk30_adc_battery_dcdet_delaywork(struct work_struct *work)
970 struct rk30_adc_battery_platform_data *pdata;
974 pdata = gBatteryData->pdata;
975 irq = gpio_to_irq(pdata->dc_det_pin);
976 irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
978 rk28_send_wakeup_key(); // wake up the system
981 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);// reinitialize the DC irq
986 power_supply_changed(&rk30_ac_supply);
988 gBatteryData->bat_status_cnt = 0; //the state of battery is change
995 static int rk30_adc_battery_get_status(struct rk30_adc_battery_data *bat)
997 return (bat->bat_status);
1000 static int rk30_adc_battery_get_health(struct rk30_adc_battery_data *bat)
1002 return POWER_SUPPLY_HEALTH_GOOD;
1005 static int rk30_adc_battery_get_present(struct rk30_adc_battery_data *bat)
1007 return (bat->bat_voltage < BATT_MAX_VOL_VALUE) ? 0 : 1;
1010 static int rk30_adc_battery_get_voltage(struct rk30_adc_battery_data *bat)
1012 return (bat->bat_voltage );
1015 static int rk30_adc_battery_get_capacity(struct rk30_adc_battery_data *bat)
1017 return (bat->bat_capacity);
1020 static int rk30_adc_battery_get_property(struct power_supply *psy,
1021 enum power_supply_property psp,
1022 union power_supply_propval *val)
1027 case POWER_SUPPLY_PROP_STATUS:
1028 val->intval = rk30_adc_battery_get_status(gBatteryData);
1029 DBG("gBatStatus=%d\n",val->intval);
1031 case POWER_SUPPLY_PROP_HEALTH:
1032 val->intval = rk30_adc_battery_get_health(gBatteryData);
1033 DBG("gBatHealth=%d\n",val->intval);
1035 case POWER_SUPPLY_PROP_PRESENT:
1036 val->intval = rk30_adc_battery_get_present(gBatteryData);
1037 DBG("gBatPresent=%d\n",val->intval);
1039 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
1040 val ->intval = rk30_adc_battery_get_voltage(gBatteryData);
1041 DBG("gBatVoltage=%d\n",val->intval);
1043 // case POWER_SUPPLY_PROP_CURRENT_NOW:
1044 // val->intval = 1100;
1046 case POWER_SUPPLY_PROP_CAPACITY:
1047 if(battery_test_flag == 2)
1050 val->intval = rk30_adc_battery_get_capacity(gBatteryData);
1051 DBG("gBatCapacity=%d%%\n",val->intval);
1053 case POWER_SUPPLY_PROP_TECHNOLOGY:
1054 val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
1056 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
1057 val->intval = BATT_MAX_VOL_VALUE;
1059 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
1060 val->intval = BATT_ZERO_VOL_VALUE;
1070 static enum power_supply_property rk30_adc_battery_props[] = {
1072 POWER_SUPPLY_PROP_STATUS,
1073 POWER_SUPPLY_PROP_HEALTH,
1074 POWER_SUPPLY_PROP_PRESENT,
1075 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1076 // POWER_SUPPLY_PROP_CURRENT_NOW,
1077 POWER_SUPPLY_PROP_TECHNOLOGY,
1078 POWER_SUPPLY_PROP_CAPACITY,
1079 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
1080 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
1083 static struct power_supply rk30_battery_supply =
1086 .type = POWER_SUPPLY_TYPE_BATTERY,
1088 .get_property = rk30_adc_battery_get_property,
1090 .properties = rk30_adc_battery_props,
1091 .num_properties = ARRAY_SIZE(rk30_adc_battery_props),
1095 static void rk30_adc_battery_resume_check(void)
1099 int new_capacity, old_capacity;
1100 struct rk30_adc_battery_data *bat = gBatteryData;
1102 bat->old_charge_level = -1;
1103 pSamples = bat->adc_samples;
1105 adc_sync_read(bat->client); //start adc sample
1106 level = oldlevel = rk30_adc_battery_status_samples(bat);//init charge status
1108 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++) { //0.3 s
1111 rk30_adc_battery_voltage_samples(bat); //get voltage
1112 level = rk30_adc_battery_status_samples(bat); //check charge status
1113 if (oldlevel != level){
1114 oldlevel = level; //if charge status changed, reset sample
1118 new_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1119 old_capacity =gBatteryData-> suspend_capacity;
1121 if (bat->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
1123 bat->bat_capacity = (new_capacity > old_capacity) ? new_capacity : old_capacity;
1126 bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; // aviod the value of capacity increase dicharge
1131 static int rk30_adc_battery_suspend(struct platform_device *dev, pm_message_t state)
1134 gBatteryData->suspend_capacity = gBatteryData->bat_capacity;
1135 cancel_delayed_work(&gBatteryData->delay_work);
1137 if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
1139 irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
1141 enable_irq_wake(irq);
1147 static int rk30_adc_battery_resume(struct platform_device *dev)
1150 gBatteryData->resume = true;
1151 queue_delayed_work(gBatteryData->wq, &gBatteryData->delay_work, msecs_to_jiffies(100));
1152 if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
1154 irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
1155 disable_irq_wake(irq);
1161 #define rk30_adc_battery_suspend NULL
1162 #define rk30_adc_battery_resume NULL
1166 unsigned long AdcTestCnt = 0;
1167 static void rk30_adc_battery_timer_work(struct work_struct *work)
1170 if (gBatteryData->resume) {
1171 rk30_adc_battery_resume_check();
1172 gBatteryData->resume = false;
1177 rk30_adc_battery_status_samples(gBatteryData);
1179 if (gBatteryData->poweron_check){
1180 gBatteryData->poweron_check = 0;
1181 rk30_adc_battery_poweron_capacity_check();
1184 rk30_adc_battery_voltage_samples(gBatteryData);
1185 rk30_adc_battery_capacity_samples(gBatteryData);
1187 if( 1 == rk30_adc_battery_get_charge_level(gBatteryData)){ // charge
1188 if(0 == gBatteryData->status_lock ){
1189 wake_lock(&batt_wake_lock); //lock
1190 gBatteryData->status_lock = 1;
1194 if(1 == gBatteryData->status_lock ){
1195 wake_unlock(&batt_wake_lock); //unlock
1196 gBatteryData->status_lock = 0;
1202 /*update battery parameter after adc and capacity has been changed*/
1203 if(gBatteryData->bat_change){
1204 gBatteryData->bat_change = 0;
1205 rk30_adc_battery_put_capacity(gBatteryData->bat_capacity);
1206 power_supply_changed(&rk30_battery_supply);
1209 if (rk30_battery_dbg_level){
1210 if (++AdcTestCnt >= 2)
1214 printk("Status = %d, RealAdcVal = %d, RealVol = %d,gBatVol = %d, gBatCap = %d, RealCapacity = %d, dischargecnt = %d, chargecnt = %d\n",
1215 gBatteryData->bat_status, gBatteryData->adc_val, adc_to_voltage(gBatteryData->adc_val),
1216 gBatteryData->bat_voltage, gBatteryData->bat_capacity, gBatteryData->capacitytmp, gBatteryData->gBatCapacityDisChargeCnt,gBatteryData-> gBatCapacityChargeCnt);
1220 queue_delayed_work(gBatteryData->wq, &gBatteryData->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
1225 static int rk30_adc_battery_io_init(struct rk30_adc_battery_platform_data *pdata)
1229 if (pdata->io_init) {
1233 //charge control pin
1234 if (pdata->charge_set_pin != INVALID_GPIO){
1235 ret = gpio_request(pdata->charge_set_pin, NULL);
1237 printk("failed to request dc_det gpio\n");
1240 gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
1243 //dc charge detect pin
1244 if (pdata->dc_det_pin != INVALID_GPIO){
1245 ret = gpio_request(pdata->dc_det_pin, NULL);
1247 printk("failed to request dc_det gpio\n");
1251 gpio_pull_updown(pdata->dc_det_pin, GPIOPullUp);//important
1252 ret = gpio_direction_input(pdata->dc_det_pin);
1254 printk("failed to set gpio dc_det input\n");
1260 if (pdata->charge_ok_pin != INVALID_GPIO){
1261 ret = gpio_request(pdata->charge_ok_pin, NULL);
1263 printk("failed to request charge_ok gpio\n");
1267 gpio_pull_updown(pdata->charge_ok_pin, GPIOPullUp);//important
1268 ret = gpio_direction_input(pdata->charge_ok_pin);
1270 printk("failed to set gpio charge_ok input\n");
1275 if( pdata->batt_low_pin != INVALID_GPIO){
1276 ret = gpio_request(pdata->batt_low_pin, NULL);
1278 printk("failed to request batt_low_pin gpio\n");
1282 gpio_pull_updown(pdata->batt_low_pin, GPIOPullUp);
1283 ret = gpio_direction_input(pdata->batt_low_pin);
1285 printk("failed to set gpio batt_low_pin input\n");
1295 //extern void kernel_power_off(void);
1296 static void rk30_adc_battery_check(struct rk30_adc_battery_data *bat)
1300 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
1301 //printk("%s--%d:\n",__FUNCTION__,__LINE__);
1303 bat->old_charge_level = -1;
1304 bat->capacitytmp = 0;
1305 bat->suspend_capacity = 0;
1307 pSamples = bat->adc_samples;
1309 adc_sync_read(bat->client); //start adc sample
1310 level = oldlevel = rk30_adc_battery_status_samples(bat);//init charge status
1312 bat->full_times = 0;
1313 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
1315 rk30_adc_battery_voltage_samples(bat); //get voltage
1316 //level = rk30_adc_battery_status_samples(bat); //check charge status
1317 level = rk30_adc_battery_get_charge_level(bat);
1319 if (oldlevel != level){
1320 oldlevel = level; //if charge status changed, reset sample
1325 bat->bat_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage); //init bat_capacity
1328 bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1329 if (rk30_adc_battery_get_charge_level(bat)){
1330 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1332 if (pdata->charge_ok_pin != INVALID_GPIO){
1333 if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
1334 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1335 bat->bat_capacity = 100;
1343 rk30_adc_battery_poweron_capacity_check();
1345 gBatteryData->poweron_check = 1;
1347 gBatteryData->poweron_check = 0;
1349 /*******************************************
1350 //¿ª»ú²ÉÑùµ½µÄµçѹºÍÉϴιػú±£´æµçѹÏà²î½Ï´ó£¬Ôõô´¦Àí£¿
1351 if (bat->bat_capacity > old_capacity)
1353 if ((bat->bat_capacity - old_capacity) > 20)
1358 else if (bat->bat_capacity < old_capacity)
1360 if ((old_capacity > bat->bat_capacity) > 20)
1365 *********************************************/
1366 if (bat->bat_capacity == 0) bat->bat_capacity = 1;
1370 if ((bat->bat_voltage <= batt_table[0].dis_charge_vol+ 50)&&(bat->bat_status != POWER_SUPPLY_STATUS_CHARGING)){
1376 static void rk30_adc_battery_callback(struct adc_client *client, void *param, int result)
1379 struct rk30_adc_battery_data *info = container_of(client, struct rk30_adc_battery_data,
1381 info->adc_val = result;
1384 pr_bat("adc_battery_callback resule < 0 , the value ");
1388 gBatteryData->adc_val = result;
1389 pr_bat("result = %d, gBatteryData->adc_val = %d\n", result, gBatteryData->adc_val );
1395 static void rk30_adc_battery_lowerpower_delaywork(struct work_struct *work)
1398 if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
1399 irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
1403 printk("lowerpower\n");
1404 rk28_send_wakeup_key(); // wake up the system
1409 static irqreturn_t rk30_adc_battery_low_wakeup(int irq,void *dev_id)
1411 queue_work(gBatteryData->wq, &gBatteryData->lowerpower_work);
1417 static int rk30_adc_battery_probe(struct platform_device *pdev)
1422 struct adc_client *client;
1423 struct rk30_adc_battery_data *data;
1424 struct rk30_adc_battery_platform_data *pdata = pdev->dev.platform_data;
1425 gSecondsCnt = get_seconds();
1426 data = kzalloc(sizeof(*data), GFP_KERNEL);
1429 goto err_data_alloc_failed;
1431 gBatteryData = data;
1433 platform_set_drvdata(pdev, data);
1435 data->pdata = pdata;
1436 data->status_lock = 0;
1437 ret = rk30_adc_battery_io_init(pdata);
1442 memset(data->adc_samples, 0, sizeof(int)*(NUM_VOLTAGE_SAMPLE + 2));
1444 //register adc for battery sample
1445 client = adc_register(0, rk30_adc_battery_callback, NULL); //pdata->adc_channel = ani0
1447 goto err_adc_register_failed;
1450 data->client = client;
1451 data->adc_val = adc_sync_read(client);
1453 ret = power_supply_register(&pdev->dev, &rk30_battery_supply);
1455 printk(KERN_INFO "fail to battery power_supply_register\n");
1456 goto err_battery_failed;
1459 ret = device_create_file(&pdev->dev,&dev_attr_batparam);
1462 printk(KERN_ERR "failed to create bat param file\n");
1463 goto err_battery_failed;
1467 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1468 ret = power_supply_register(&pdev->dev, &rk30_usb_supply);
1470 printk(KERN_INFO "fail to usb power_supply_register\n");
1471 goto err_usb_failed;
1474 wake_lock_init(&batt_wake_lock, WAKE_LOCK_SUSPEND, "batt_lock");
1476 data->wq = create_singlethread_workqueue("adc_battd");
1477 INIT_DELAYED_WORK(&data->delay_work, rk30_adc_battery_timer_work);
1478 //Power on Battery detect
1479 rk30_adc_battery_check(data);
1480 queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
1482 #if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
1483 ret = power_supply_register(&pdev->dev, &rk30_ac_supply);
1485 printk(KERN_INFO "fail to ac power_supply_register\n");
1488 //init dc dectet irq & delay work
1489 if (pdata->dc_det_pin != INVALID_GPIO){
1490 INIT_WORK(&data->dcwakeup_work, rk30_adc_battery_dcdet_delaywork);
1492 irq = gpio_to_irq(pdata->dc_det_pin);
1493 irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
1494 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);
1496 printk("failed to request dc det irq\n");
1497 goto err_dcirq_failed;
1499 enable_irq_wake(irq);
1505 // batt low irq lowerpower_work
1506 if( pdata->batt_low_pin != INVALID_GPIO){
1507 INIT_WORK(&data->lowerpower_work, rk30_adc_battery_lowerpower_delaywork);
1509 irq = gpio_to_irq(pdata->batt_low_pin);
1510 ret = request_irq(irq, rk30_adc_battery_low_wakeup, IRQF_TRIGGER_LOW, "batt_low_irq", NULL);
1513 printk("failed to request batt_low_irq irq\n");
1514 goto err_lowpowerirq_failed;
1522 ret = create_sysfs_interfaces(&pdev->dev);
1526 "device rk30_adc_batterry sysfs register failed\n");
1531 printk(KERN_INFO "rk30_adc_battery: driver initialized\n");
1535 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1537 power_supply_unregister(&rk30_usb_supply);
1541 #if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
1542 power_supply_unregister(&rk30_ac_supply);
1546 power_supply_unregister(&rk30_battery_supply);
1549 free_irq(gpio_to_irq(pdata->dc_det_pin), data);
1551 err_lowpowerirq_failed:
1552 free_irq(gpio_to_irq(pdata->batt_low_pin), data);
1554 err_adc_register_failed:
1556 err_data_alloc_failed:
1559 printk("rk30_adc_battery: error!\n");
1564 static int rk30_adc_battery_remove(struct platform_device *pdev)
1566 struct rk30_adc_battery_data *data = platform_get_drvdata(pdev);
1567 struct rk30_adc_battery_platform_data *pdata = pdev->dev.platform_data;
1569 cancel_delayed_work(&gBatteryData->delay_work);
1570 #if defined(CONFIG_BATTERY_RK30_USB_CHARGE)
1571 power_supply_unregister(&rk30_usb_supply);
1573 #if defined(CONFIG_BATTERY_RK30_AC_CHARGE)
1574 power_supply_unregister(&rk30_ac_supply);
1576 power_supply_unregister(&rk30_battery_supply);
1578 free_irq(gpio_to_irq(pdata->dc_det_pin), data);
1585 static struct platform_driver rk30_adc_battery_driver = {
1586 .probe = rk30_adc_battery_probe,
1587 .remove = rk30_adc_battery_remove,
1588 .suspend = rk30_adc_battery_suspend,
1589 .resume = rk30_adc_battery_resume,
1591 .name = "rk30-battery",
1592 .owner = THIS_MODULE,
1596 static int __init rk30_adc_battery_init(void)
1598 return platform_driver_register(&rk30_adc_battery_driver);
1601 static void __exit rk30_adc_battery_exit(void)
1603 platform_driver_unregister(&rk30_adc_battery_driver);
1606 subsys_initcall(rk30_adc_battery_init);//subsys_initcall(rk30_adc_battery_init);
1607 module_exit(rk30_adc_battery_exit);
1609 MODULE_DESCRIPTION("Battery detect driver for the rk30");
1610 MODULE_AUTHOR("luowei lw@rock-chips.com");
1611 MODULE_LICENSE("GPL");