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 <linux/adc.h>
26 #include <linux/delay.h>
27 #include <linux/ktime.h>
28 #include <linux/slab.h>
29 #include <linux/syscalls.h>
31 #include <linux/wakelock.h>
33 #include <linux/string.h>
34 #include <linux/init.h>
35 #include <linux/suspend.h>
36 #include <linux/gpio.h>
37 #include <linux/of_gpio.h>
38 #include <linux/power/rockchip-adc-battery.h>
39 #include <linux/iio/iio.h>
40 #include <linux/iio/machine.h>
41 #include <linux/iio/driver.h>
42 #include <linux/iio/consumer.h>
44 #ifdef CONFIG_EARLYSUSPEND
45 /* kernel/power/earlysuspend.c */
46 extern suspend_state_t get_suspend_state(void);
49 static int rk30_battery_dbg_level;
50 module_param_named(dbg_level, rk30_battery_dbg_level, int, 0644);
51 #define DBG( args...) \
53 if (rk30_battery_dbg_level) {\
58 #define TIMER_MS_COUNTS 1000
59 #define SLOPE_SECOND_COUNTS 15
60 #define DISCHARGE_MIN_SECOND 30
61 #define CHARGE_MIN_SECOND 30
62 #define CHARGE_MID_SECOND 90
63 #define CHARGE_MAX_SECOND 250
64 #define CHARGE_FULL_DELAY_TIMES 10
65 #define USBCHARGE_IDENTIFY_TIMES 2
67 #define NUM_VOLTAGE_SAMPLE ((SLOPE_SECOND_COUNTS * 1000) / TIMER_MS_COUNTS)
68 #define NUM_DISCHARGE_MIN_SAMPLE ((DISCHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
69 #define NUM_CHARGE_MIN_SAMPLE ((CHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
70 #define NUM_CHARGE_MID_SAMPLE ((CHARGE_MID_SECOND * 1000) / TIMER_MS_COUNTS)
71 #define NUM_CHARGE_MAX_SAMPLE ((CHARGE_MAX_SECOND * 1000) / TIMER_MS_COUNTS)
72 #define NUM_CHARGE_FULL_DELAY_TIMES ((CHARGE_FULL_DELAY_TIMES * 1000) / TIMER_MS_COUNTS)
73 #define NUM_USBCHARGE_IDENTIFY_TIMES ((USBCHARGE_IDENTIFY_TIMES * 1000) / TIMER_MS_COUNTS)
75 #define CHARGE_IS_OK 1
76 #define INVALID_CHARGE_CHECK -1
78 #if defined(CONFIG_ARCH_RK3066B)
79 #define BAT_DEFINE_VALUE 1800
80 #elif defined(CONFIG_ARCH_RK2928)
81 #define BAT_DEFINE_VALUE 3300
83 #define BAT_DEFINE_VALUE 3300 /*2500*/
86 #define RK30_GPIO_LOW 0
87 #define RK30_GPIO_HIGH 1
91 #define BATT_FILENAME "/data/bat_last_capacity.dat"
97 int battery_dbg_level = 0;
98 int battery_test_flag = 0;
99 int gVoltageCnt = 3400;
100 int gDoubleVoltageCnt = 6800;
101 unsigned long gSecondsCnt = 0;
102 char gDischargeFlag[4] = {"on "};
105 #define BATT_MAX_VOL_VALUE 4250/*Full charge volatge*/
106 #define BATT_ZERO_VOL_VALUE 3500/*power down voltage*/
107 #define BATT_NOMAL_VOL_VALUE 3800
109 static int batt_table[2*BATT_NUM+6] =
111 0x4B434F52,0x7461625F,0x79726574,0,100,100,
112 3496, 3548, 3599, 3626, 3655, 3697, 3751, 3812, 3877, 3949, 4030, //discharge
113 3540, 3785, 3842, 3861, 3915, 3980, 4041, 4135, 4169, 4175, 4185 //charge
115 #define adc_to_voltage(adc_val) ((adc_val * BAT_DEFINE_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
117 #define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
118 #define BATT_ZERO_VOL_VALUE 6900 // power down voltage
119 #define BATT_NOMAL_VOL_VALUE 7600
122 static int batt_table[2*BATT_NUM+6] =
124 0x4B434F52,0x7461625F,0x79726574,1,300,100,
125 6800, 7242, 7332, 7404, 7470, 7520, 7610, 7744, 7848, 8016, 8284,//discharge
126 7630, 7754, 7852, 7908, 7956, 8024, 8112, 8220, 8306, 8318, 8328//charge
128 #define adc_to_voltage(adc_val) ((adc_val * BAT_DEFINE_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
135 /********************************************************************************/
142 BATTERY_CAPACITY = 3,
143 BATTERY_AC_ONLINE = 4,
144 BATTERY_STATUS_CHANGED = 5,
145 AC_STATUS_CHANGED = 6,
146 BATTERY_INT_STATUS = 7,
147 BATTERY_INT_ENABLE = 8,
158 struct rk30_adc_battery_data {
161 //struct timer_list timer;
162 struct workqueue_struct *wq;
163 struct delayed_work delay_work;
164 struct delayed_work check_work;
165 struct work_struct dcwakeup_work;
166 struct work_struct lowerpower_work;
169 struct rk30_adc_battery_platform_data *pdata;
171 struct adc_client *client;
173 int adc_samples[NUM_VOLTAGE_SAMPLE+2];
183 int old_charge_level;
185 int gBatCapacityDisChargeCnt;
186 int gBatCapacityChargeCnt;
187 int gBatCapacityacChargeCnt;
188 int gBatCapacityusbChargeCnt ;
189 int gBatCapacityusbdisChargeCnt;
191 int suspend_capacity;
192 int gBatUsbChargeCnt;
195 struct power_supply bat;
196 struct power_supply usb;
197 struct power_supply ac;
198 struct power_supply bk_bat;
206 int charge_source_now;
207 int charge_soure_old;
208 int charge_start_capacity;
209 int charge_start_voltage;
210 int start_voltage_status;
211 int charge_up_proprotion;
212 int charge_down_proportion;
213 int voltage_to_local;
214 unsigned long suspend_time;
215 unsigned long resume_time;
219 int charge_full_flag;
221 struct notifier_block battery_nb;
223 int lower_power_flag;
227 static struct rk30_adc_battery_data *gBatteryData;
228 static struct wake_lock batt_wake_lock;
229 static struct wake_lock batt_wake_lock_detect_lowpower;
230 static struct wake_lock charge_display_lock;
231 int system_lowerpower = 0;
232 extern void kernel_power_off(void);
233 extern int dwc_vbus_status(void);
234 extern int get_gadget_connect_flag(void);
235 extern int dwc_otg_check_dpdm(void);
236 static int is_charge_ok(struct rk30_adc_battery_data *bat);
237 static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat);
238 extern void rk_send_wakeup_key(void);
239 static bool batt_gpio_is_valid(int number)
241 return number > 0 && number < 256;
244 //#define BAT_ADC_TABLE_LEN 11
245 static ssize_t bat_param_read(struct device *dev,struct device_attribute *attr, char *buf)
248 for(i=0;i<BATT_NUM;i++)
249 printk("i=%d batt_table=%d\n",i+6,batt_table[i+6]);
251 for(i=0;i<BATT_NUM;i++)
252 printk("i=%d batt_table=%d\n",i+17,batt_table[i+17]);
255 DEVICE_ATTR(batparam, 0444, bat_param_read, NULL);
258 static ssize_t rkbatt_show_debug_attrs(struct device *dev,
259 struct device_attribute *attr, char *buf)
261 return sprintf(buf, "%d\n", battery_dbg_level);
264 static ssize_t rkbatt_restore_debug_attrs(struct device *dev,
265 struct device_attribute *attr, const char *buf, size_t size)
269 sscanf(buf, "%d", &liTmp);
271 if(liTmp != 0 && liTmp != 1)
273 dev_err(dev, "rk29adc_restore_debug_attrs err\n");
277 battery_dbg_level = liTmp;
282 static ssize_t rkbatt_show_state_attrs(struct device *dev,
283 struct device_attribute *attr, char *buf)
285 // struct rk30_adc_battery_platform_data *pdata = gBatteryData->pdata;
286 int charge_ok_value =0 ;
287 charge_ok_value = is_charge_ok(gBatteryData) ;
290 "gBatVol=%d,gBatCap=%d,charge_ok=%d,%s\n",
291 gBatteryData->bat_voltage,gBatteryData->bat_capacity,
292 charge_ok_value,gDischargeFlag);
295 static ssize_t rkbatt_restore_state_attrs(struct device *dev,
296 struct device_attribute *attr, const char *buf, size_t size)
301 static ssize_t rkbatt_show_value_attrs(struct device *dev,
302 struct device_attribute *attr, char *buf)
304 return sprintf(buf, "pull_up_res =%d,\npull_down_res=%d\n", batt_table[4],batt_table[5]);
307 static ssize_t rkbatt_restore_value_attrs(struct device *dev,
308 struct device_attribute *attr, const char *buf, size_t size)
313 sscanf(buf, "%d,%d", &liUp,&liDown);
315 if(liUp != 0 && liDown != 0)
317 batt_table[4] = liUp;
318 batt_table[5] = liDown;
323 static ssize_t rkbatt_show_flag_attrs(struct device *dev,
324 struct device_attribute *attr, char *buf)
326 return sprintf(buf, "rk29_battery_test_flag=%d\n", battery_test_flag);
328 static ssize_t rkbatt_restore_flag_attrs(struct device *dev,
329 struct device_attribute *attr, const char *buf, size_t size)
333 sscanf(buf, "%d", &liFlag);
337 battery_test_flag = liFlag;
341 static struct device_attribute rkbatt_attrs[] = {
342 __ATTR(state, 0664, rkbatt_show_state_attrs, rkbatt_restore_state_attrs),
343 __ATTR(debug, 0664, rkbatt_show_debug_attrs, rkbatt_restore_debug_attrs),
344 __ATTR(value, 0555, rkbatt_show_value_attrs, rkbatt_restore_value_attrs),
345 __ATTR(flag, 0555, rkbatt_show_flag_attrs, rkbatt_restore_flag_attrs),
348 static int rk_adc_battery_iio_read(struct rk30_adc_battery_platform_data *data)
350 struct iio_channel *channel = data->chan;
353 ret = iio_read_channel_raw(channel, &val);
355 pr_err("read channel() error: %d\n", ret);
362 static int create_sysfs_interfaces(struct device *dev)
365 for (liTmep = 0; liTmep < ARRAY_SIZE(rkbatt_attrs); liTmep++) {
367 if (device_create_file(dev, rkbatt_attrs + liTmep)){
375 for ( ; liTmep >= 0; liTmep--){
376 device_remove_file(dev, rkbatt_attrs + liTmep);
379 dev_err(dev, "%s:Unable to create sysfs interface\n", __func__);
385 static int rk30_adc_battery_load_capacity(void)
388 int* p = (int *)value;
389 long fd = sys_open(BATT_FILENAME,O_RDONLY,0);
392 DBG("rk30_adc_battery_load_capacity: open file /data/bat_last_capacity.dat failed\n");
396 sys_read(fd,(char __user *)value,4);
402 static void rk30_adc_battery_put_capacity(int loadcapacity)
405 int* p = (int *)value;
406 long fd = sys_open(BATT_FILENAME,O_CREAT | O_RDWR,0);
409 DBG("rk30_adc_battery_put_capacity: open file /data/bat_last_capacity.dat failed\n");
414 sys_write(fd, (const char __user *)value, 4);
417 static BLOCKING_NOTIFIER_HEAD(adc_battery_chain_head);
419 int register_adc_battery_notifier(struct notifier_block *nb)
421 return blocking_notifier_chain_register(&adc_battery_chain_head, nb);
423 EXPORT_SYMBOL_GPL(register_adc_battery_notifier);
425 int unregister_adc_battery_notifier(struct notifier_block *nb)
427 return blocking_notifier_chain_unregister(&adc_battery_chain_head, nb);
429 EXPORT_SYMBOL_GPL(unregister_adc_battery_notifier);
431 int adc_battery_notifier_call_chain(unsigned long val)
433 return (blocking_notifier_call_chain(&adc_battery_chain_head, val, NULL)
434 == NOTIFY_BAD) ? -EINVAL : 0;
436 EXPORT_SYMBOL_GPL(adc_battery_notifier_call_chain);
438 static void rk_start_charge(struct rk30_adc_battery_data *bat)
440 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
441 if (batt_gpio_is_valid(pdata->charge_set_pin))
442 gpio_direction_output(pdata->charge_set_pin, pdata->charge_set_level);
445 static void rk_stop_charge(struct rk30_adc_battery_data *bat)
447 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
450 if (batt_gpio_is_valid(pdata->charge_set_pin))
451 gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
454 static int get_ac_status(struct rk30_adc_battery_data *bat){
456 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
458 if (batt_gpio_is_valid(pdata->dc_det_pin)) {
459 if (gpio_get_value (pdata->dc_det_pin) == pdata->dc_det_level){
465 if(pdata->is_dc_charging){
466 status = pdata->is_dc_charging();
472 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
474 //state of charge ----running
475 static int get_usb_status2(struct rk30_adc_battery_data *bat){
477 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
478 int usb_status = 0; // 0--dischage ,1 ---usb charge, 2 ---ac charge
479 int vbus_status = dwc_vbus_status();
481 if (1 == vbus_status) {
482 if (0 == get_gadget_connect_flag()){
483 if (++bat->gBatUsbChargeCnt >= NUM_USBCHARGE_IDENTIFY_TIMES){
484 bat->gBatUsbChargeCnt = NUM_USBCHARGE_IDENTIFY_TIMES + 1;
485 usb_status = 2; // non-standard AC charger
486 if(bat ->pdata ->control_usb_charging)
487 bat ->pdata ->control_usb_charging(1);
489 usb_status = 1; // connect to pc
490 if(bat ->pdata ->control_usb_charging)
491 bat ->pdata ->control_usb_charging(0);
495 usb_status = 1; // connect to pc
496 if(bat ->pdata ->control_usb_charging)
497 bat ->pdata ->control_usb_charging(0);
502 bat->gBatUsbChargeCnt = 0;
503 if (2 == vbus_status) {
504 usb_status = 2; //standard AC charger
506 if(bat ->pdata ->control_usb_charging)
507 bat ->pdata ->control_usb_charging(1);
518 static int rk_battery_get_status(struct rk30_adc_battery_data *bat)
521 /* struct rk30_adc_battery_platform_data *pdata = bat->pdata;*/
522 int ac_ac_charging = 0, usb_ac_charging = 0;
525 ac_ac_charging = get_ac_status(bat);
526 if(1 == ac_ac_charging)
529 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
530 if (strstr(saved_command_line,"charger")){
531 wake_lock(&charge_display_lock); //lock
532 if (batt_gpio_is_valid(bat->pdata->usb_det_pin)) {
533 if( gpio_get_value(bat->pdata->usb_det_pin)== bat->pdata->usb_det_level){
534 if(( 1 == usb_ac_charging )||( 1 == ac_ac_charging ))
535 bat -> ac_charging = 1;
536 if(( 1 == bat->usb_charging)||(1 == bat ->ac_charging))
540 if(( 0 == usb_ac_charging )&&( 0 == ac_ac_charging ))
541 bat -> ac_charging = 0;
543 bat->ac_charging = 1;
545 bat->usb_charging = 0;
546 if(1 == bat->ac_charging)
554 if(dwc_otg_check_dpdm() == 0){
555 bat->usb_charging = 0;
557 }else if(dwc_otg_check_dpdm() == 1){
558 bat->usb_charging = 1;
559 if(bat -> pdata ->control_usb_charging)
560 bat -> pdata ->control_usb_charging(0);
561 }else if(dwc_otg_check_dpdm() == 2){
562 bat->usb_charging = 0;
564 if(bat -> pdata ->control_usb_charging)
565 bat -> pdata ->control_usb_charging(1);
567 if((1 == usb_ac_charging)||(1 == ac_ac_charging))
568 bat ->ac_charging = 1;
570 bat ->ac_charging = 0;
572 if(( 0 == bat ->ac_charging )&&(0 == bat->usb_charging )){
583 usb_ac_charging = get_usb_status2(bat); //0 --discharge, 1---usb charging,2----AC charging;
584 if(1 == usb_ac_charging)
585 bat->usb_charging = 1;
587 bat->usb_charging = 0;
590 if((usb_ac_charging == 2)||(ac_ac_charging == 1))
591 bat -> ac_charging = 1;
593 bat -> ac_charging = 0;
595 if((bat->usb_charging == 1)||(bat ->ac_charging ==1))
598 if(1 == bat->ac_charging )
599 bat->charge_source_now = 1; //ac charge
600 else if( 1 == bat->usb_charging){
601 bat->charge_source_now = 2; //ac charge
603 bat->charge_soure_old =0;
604 bat->charge_source_now=0;
606 if(bat->charge_source_now != bat->charge_soure_old){
608 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
609 msleep(1); //mdelay --- > msleep
610 rk30_adc_battery_voltage_samples(bat); //get new voltage
613 bat->charge_soure_old = bat->charge_source_now;
616 DBG("ac_status=%d,usb_status=%d bat->bat_change = %d\n",bat -> ac_charging, bat->usb_charging ,bat->bat_change );
621 static int is_charge_ok(struct rk30_adc_battery_data *bat)
623 int charge_is_ok = 0;
624 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
626 if( 1 != bat->charge_level)
629 if ((!(batt_gpio_is_valid(pdata->charge_ok_pin))) && (
630 pdata->charging_ok == NULL))
633 if (batt_gpio_is_valid(pdata->charge_ok_pin)) {
634 if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
637 }else if( pdata->charging_ok){
639 charge_is_ok = pdata->charging_ok();
647 static int rk30_adc_battery_status_samples(struct rk30_adc_battery_data *bat)
651 charge_level = bat ->charge_level;//rk_battery_get_status(bat);
653 if (charge_level != bat->old_charge_level){
654 bat->old_charge_level = charge_level;
658 rk_start_charge(bat);
664 bat->bat_status_cnt = 0;
666 if(( 1 == charge_level )&&(1 == bat->charge_full_flag) && (bat->bat_capacity < 90)){
667 rk_start_charge(bat); //recharge
668 if(bat->pdata->ctrl_charge_led != NULL)
669 bat->pdata->ctrl_charge_led(0);
671 }else if (charge_level) {
672 rk_start_charge(bat);
679 if(charge_level == 0){
681 bat->charge_full_flag = 0;
683 bat->time_to_full = 0;
684 bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
687 if( is_charge_ok(bat) == INVALID_CHARGE_CHECK){
688 if (bat->bat_capacity == 100){
689 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
690 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
692 bat->charge_full_flag = 1;
693 if(bat->pdata->ctrl_charge_led != NULL)
694 bat->pdata->ctrl_charge_led(1);
699 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
700 if((bat->bat_capacity == 99)&&(bat->time_to_full == 0)){
701 bat->time_to_full = get_seconds();
702 }else if(bat->bat_capacity == 99)
704 if(get_seconds() - bat->time_to_full > 1800){
705 bat->bat_capacity = 100;
706 bat->time_to_full = 0;
711 if(bat->pdata->ctrl_charge_led != NULL)
712 bat->pdata->ctrl_charge_led(0);
714 }else{ // pin of charge_ok_pin
715 if (is_charge_ok(bat) != CHARGE_IS_OK ){
718 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
720 if((bat->bat_capacity == 99)&&(bat->time_to_full == 0)){
721 bat->time_to_full = get_seconds();
722 }else if(bat->bat_capacity == 99)
724 if(get_seconds() - bat->time_to_full > 1800){
725 bat->bat_capacity = 100;
726 bat->time_to_full = 0;
735 if (bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) {
736 bat->full_times = NUM_CHARGE_FULL_DELAY_TIMES + 1;
739 if ((bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) && (bat->bat_capacity >= 99)){
740 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
741 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
743 bat->bat_capacity = 100;
748 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
757 static int rk_adc_battery_iio_read_refvol(struct rk30_adc_battery_platform_data *data)
759 struct iio_channel *channel = data->ref_voltage_chan;
762 ret = iio_read_channel_raw(channel, &val);
764 pr_err("read channel() error: %d\n", ret);
770 static int get_ref_voltage(struct rk30_adc_battery_data *bat)
773 struct regulator *logic;
774 int voltage, ref_voltage;
776 logic = regulator_get(NULL, "vdd_arm");
777 voltage = regulator_get_voltage(logic);
778 data_value = rk_adc_battery_iio_read_refvol(bat->pdata);
779 ref_voltage = voltage*1024/data_value/1000;
783 static int rk_adc_voltage(struct rk30_adc_battery_data *bat, int value)
788 ref_voltage = bat ->pdata->reference_voltage;
791 if (bat->pdata->auto_calibration == 1)
792 ref_voltage = get_ref_voltage(bat);
793 voltage = (value * ref_voltage * (batt_table[4] + batt_table[5])) / (1024 * batt_table[5]);
794 DBG("ref_voltage =%d, voltage=%d\n", ref_voltage, voltage);
797 voltage = adc_to_voltage(value);
799 DBG("ref_voltage =%d, voltage=%d\n", ref_voltage, voltage);
803 static void rk_handle_ripple(struct rk30_adc_battery_data *bat, int status)
808 if (bat->pdata->use_board_table){
809 p_table = bat->pdata->board_batt_table;
812 if(bat->bat_voltage >= p_table[2*BATT_NUM +5]+ 10)
813 bat->bat_voltage = p_table[2*BATT_NUM +5] + 10;
814 else if(bat->bat_voltage <= p_table[BATT_NUM +6] - 10)
815 bat->bat_voltage = p_table[BATT_NUM +6] - 10;
818 if(bat->bat_voltage >= p_table[BATT_NUM +5]+ 10)
819 bat->bat_voltage = p_table[BATT_NUM +5] + 10;
820 else if(bat->bat_voltage <= p_table[6] - 10)
821 bat->bat_voltage = p_table[6] - 10;
827 //static int *pSamples;
828 static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat)
831 int i,*pStart = bat->adc_samples, num = 0;
832 int level = bat->charge_level;
835 value = bat->adc_val;
836 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
838 *(bat->pSamples++) = rk_adc_voltage(bat,value);
840 bat->bat_status_cnt++;
841 if (bat->bat_status_cnt > NUM_VOLTAGE_SAMPLE) bat->bat_status_cnt = NUM_VOLTAGE_SAMPLE + 1;
843 num = bat->pSamples - pStart;
845 if (num >= NUM_VOLTAGE_SAMPLE){
846 bat ->pSamples = pStart;
847 num = NUM_VOLTAGE_SAMPLE;
852 for (i = 0; i < num; i++){
853 value += bat->adc_samples[i];
855 bat->bat_voltage = value / num;
858 if(battery_test_flag == 0)
860 if(0 == bat->pdata->use_board_table){
862 if(bat->bat_voltage >= batt_table[2*BATT_NUM +5]+ 10)
863 bat->bat_voltage = batt_table[2*BATT_NUM +5] + 10;
864 else if(bat->bat_voltage <= batt_table[BATT_NUM +6] - 10)
865 bat->bat_voltage = batt_table[BATT_NUM +6] - 10;
868 if(bat->bat_voltage >= batt_table[BATT_NUM +5]+ 10)
869 bat->bat_voltage = batt_table[BATT_NUM +5] + 10;
870 else if(bat->bat_voltage <= batt_table[6] - 10)
871 bat->bat_voltage = batt_table[6] - 10;
874 rk_handle_ripple(bat, level);
877 }else if(battery_test_flag == 2){
879 if(batt_table[3] == 0){
880 if(bat->bat_voltage < 3400){
881 if((get_seconds() - gSecondsCnt) > 30){
882 gSecondsCnt = get_seconds();
883 if((gVoltageCnt - bat->bat_voltage) > 15){
884 strncpy(gDischargeFlag, "off" ,4);
886 gVoltageCnt = bat->bat_voltage;
891 if(bat->bat_voltage < 3400){
892 bat->bat_voltage = 3400;
896 if(bat->bat_voltage < 6800){
897 if((get_seconds() - gSecondsCnt) > 30){
898 gSecondsCnt = get_seconds();
899 if((gDoubleVoltageCnt - bat->bat_voltage) > 30){
900 strncpy(gDischargeFlag, "off" ,4);
902 gDoubleVoltageCnt =bat->bat_voltage;
905 if(bat->bat_voltage < 6800){
906 bat->bat_voltage = 6800;
912 static int rk30_adc_battery_voltage_to_capacity(struct rk30_adc_battery_data *bat, int BatVoltage)
919 if (bat->pdata->use_board_table)
920 p = bat->pdata->board_batt_table;
921 else if (bat->pdata->dts_batt_table)
922 p = bat->pdata->dts_batt_table;
927 if (1 == bat->charge_level){ //charge
928 if(0 == bat->start_voltage_status ){
929 if(BatVoltage >= (p[2*BATT_NUM +5])){
933 if(BatVoltage <= (p[BATT_NUM +6])){
937 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++){
939 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
941 capacity = (i-(BATT_NUM +6))*10 + ((BatVoltage - p[i]) * 10)/ (p[i+1]- p[i]);
950 DBG("start_voltage=%d,start_capacity =%d\n", bat->charge_start_voltage, bat->charge_start_capacity);
951 DBG("charge_down_proportion =%d,charge_up_proprotion=%d\n",bat ->charge_down_proportion,bat ->charge_up_proprotion);
952 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
953 if(((p[i]) <= bat->charge_start_voltage) && (bat->charge_start_voltage < (p[i+1])))
954 bat->voltage_to_local = i;
955 if(BatVoltage >= (p[2*BATT_NUM +5])){
959 if(BatVoltage <= (p[BATT_NUM +6])){
963 if(BatVoltage <bat->charge_start_voltage){
964 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
965 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
966 if( p[i+1] < bat->charge_start_voltage ){
967 capacity =bat->charge_start_capacity - ((p[i+1] -BatVoltage) * bat->charge_start_capacity/(bat->voltage_to_local -17+1))/ (p[i+1]- p[i]) - (bat->voltage_to_local- (i ))*bat->charge_start_capacity/(bat->voltage_to_local -17+1);
968 DBG("1<<<<<<< %d bat->voltage_to_local =%d capacity = %d BatVoltage =%d p[i] = %d,p[i+1] = %d \n", i, bat->voltage_to_local,capacity,BatVoltage,p[i], p[i+1]);
972 capacity =bat->charge_start_capacity - ((bat->charge_start_voltage -BatVoltage) * bat->charge_start_capacity/(bat->voltage_to_local -17+1) )/ (bat->charge_start_voltage - p[i]);
973 DBG("2<<<<<< %d capacity = %d BatVoltage =%d p[i] = %d,p[i+1] = %d \n", i,capacity,BatVoltage,p[i], p[i+1]);
981 if(BatVoltage > bat->charge_start_voltage){
982 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
983 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
984 if( p[i] > bat->charge_start_voltage ){
985 capacity = bat->charge_start_capacity + (i +1- (bat->voltage_to_local))*(100- bat->charge_start_capacity )/( 10 - (bat->voltage_to_local - 17)) + (BatVoltage - p[i]) * (100- bat->charge_start_capacity )/( 10 - (bat->voltage_to_local -17))/ (p[i+1]- p[i]);
986 DBG("3<<<<<<<< %d bat->voltage_to_local =%d capacity = %d BatVoltage =%d p[i] = %d,p[i+1] = %d \n", i, bat->voltage_to_local,capacity,BatVoltage,p[i], p[i+1]);
989 capacity = bat->charge_start_capacity + (BatVoltage - bat->charge_start_voltage) * (100- bat->charge_start_capacity )/( 10 - (bat->voltage_to_local-17 )) /(p[i+1] - bat->charge_start_voltage );
990 DBG(" 4<<<<<<<<<%d bat->voltage_to_local =%d capacity = %d BatVoltage =%d p[i] = %d,p[i+1] = %d \n", i,bat->voltage_to_local,capacity,BatVoltage,p[i], p[i+1]);
997 if(BatVoltage == bat->charge_start_voltage)
998 capacity = bat ->charge_start_capacity;
1008 if(BatVoltage >= (p[BATT_NUM +5])){
1012 if(BatVoltage <= (p[6])){
1016 for(i = 6; i < BATT_NUM +5; i++){
1017 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
1018 capacity = (i-6)*10+ ((BatVoltage - p[i]) *10 )/ (p[i+1]- p[i]) ;
1029 DBG("real_voltage_to_capacity =%d\n" ,capacity);
1033 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1035 static void rk_usb_charger(struct rk30_adc_battery_data *bat)
1038 int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1039 int timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE;
1041 if((1 == bat ->charge_level)&&( 0 == bat ->start_voltage_status)){
1042 bat ->charge_start_voltage = bat ->bat_voltage;
1043 bat ->start_voltage_status = 1;
1044 bat ->charge_start_capacity = bat ->bat_capacity;
1045 if(bat ->charge_start_capacity%10 != 0){
1046 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1047 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1049 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10;
1050 bat ->charge_down_proportion = bat ->charge_start_capacity/10;
1056 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1058 if (capacity > bat->bat_capacity){
1059 if(capacity > bat->bat_capacity + 10 )
1060 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -10; //5s
1061 else if(capacity > bat->bat_capacity + 7 )
1062 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -5; //10s
1063 else if(capacity > bat->bat_capacity + 3 )
1064 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE - 2; // 13
1065 if (++(bat->gBatCapacityusbChargeCnt) >= timer_of_charge_sample){
1066 bat->gBatCapacityusbChargeCnt = 0;
1067 if (bat->bat_capacity < 99){
1068 bat->bat_capacity++;
1069 bat->bat_change = 1;
1072 bat->gBatCapacityChargeCnt = 0;
1073 bat ->gBatCapacityusbdisChargeCnt = 0;//get_suspend_state(void)
1074 }else //if(( get_suspend_state() != PM_SUSPEND_MEM)&&(capacity < bat->bat_capacity)){
1075 // if((gpio_get_value (bat->pdata->back_light_pin) == 1)&&(capacity < bat->bat_capacity)){
1076 if((capacity < bat->bat_capacity)){
1077 DBG("USB CHARGE DOWN\n");
1079 // if (capacity < bat->bat_capacity){
1081 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 40; // 13
1082 }else if(capacity < 20){
1083 if(capacity + 3 > bat->bat_capacity )
1084 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -5; //5s
1085 else if(capacity + 7 > bat->bat_capacity )
1086 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -10; //10s
1087 else if(capacity + 10> bat->bat_capacity )
1088 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -25; // 13
1090 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 35; // 13
1092 if(capacity + 3 > bat->bat_capacity )
1093 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -5; //5s
1094 else if(capacity + 7 > bat->bat_capacity )
1095 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -10; //10s
1096 else if(capacity + 10> bat->bat_capacity )
1097 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 15; // 13
1099 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 20; // 13
1102 if (++(bat->gBatCapacityusbdisChargeCnt) >= timer_of_discharge_sample){
1103 bat->gBatCapacityusbdisChargeCnt = 0;
1104 if (bat->bat_capacity > 0){
1105 bat->bat_capacity-- ;
1106 bat->bat_change = 1;
1111 bat->gBatCapacityusbChargeCnt = 0;
1114 else //if(get_suspend_state() == PM_SUSPEND_MEM){
1115 //if(gpio_get_value (bat->pdata->back_light_pin) == 0){
1119 bat->gBatCapacityusbdisChargeCnt = 0;
1120 // (bat->gBatCapacityusbChargeCnt)++;
1121 if( is_charge_ok(bat) != INVALID_CHARGE_CHECK){
1122 if( is_charge_ok(bat) == CHARGE_IS_OK){
1124 if (++bat->gBatCapacityusbChargeCnt >= timer_of_charge_sample-30){
1125 bat->gBatCapacityusbChargeCnt = 0;
1126 if (bat->bat_capacity <= 99){
1127 bat->bat_capacity++;
1128 bat->bat_change = 1;
1132 if (capacity > bat->capacitytmp){
1133 bat->gBatCapacityChargeCnt = 0;
1136 if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
1137 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1139 if (bat->bat_capacity < 99){
1140 bat->bat_capacity++;
1141 bat->bat_change = 1;
1149 if (capacity > bat->capacitytmp){
1150 bat->gBatCapacityChargeCnt = 0;
1152 if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityusbChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
1153 bat->gBatCapacityusbChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1154 if (bat->bat_capacity <= 99){
1155 bat->bat_capacity++;
1156 bat->bat_change = 1;
1163 bat->capacitytmp = capacity;
1167 static void rk_ac_charger(struct rk30_adc_battery_data *bat)
1170 int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1172 if((1 == bat->charge_level)&&( 0 == bat->start_voltage_status)){
1173 bat->charge_start_voltage = bat->bat_voltage;
1174 bat->start_voltage_status = 1;
1175 bat->charge_start_capacity = bat->bat_capacity;
1176 if(bat ->charge_start_capacity%10 != 0){
1177 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1178 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1180 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10;
1181 bat ->charge_down_proportion = bat ->charge_start_capacity/10;
1186 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1187 if (capacity > bat->bat_capacity){
1188 if(capacity > bat->bat_capacity + 10 )
1189 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -10; //5s
1190 else if(capacity > bat->bat_capacity + 7 )
1191 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -5; //10s
1192 else if(capacity > bat->bat_capacity + 3 )
1193 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE - 2; // 13
1194 if (++(bat->gBatCapacityacChargeCnt) >= timer_of_charge_sample){
1195 bat->gBatCapacityacChargeCnt = 0;
1196 if (bat->bat_capacity < 99){
1197 bat->bat_capacity++;
1198 bat->bat_change = 1;
1201 bat->gBatCapacityChargeCnt = 0;
1204 bat->gBatCapacityacChargeCnt = 0;
1205 (bat->gBatCapacityChargeCnt)++;
1206 if( is_charge_ok(bat) != INVALID_CHARGE_CHECK){
1207 if( is_charge_ok(bat) == CHARGE_IS_OK){
1208 if (bat->gBatCapacityChargeCnt >= timer_of_charge_sample){
1209 bat->gBatCapacityChargeCnt = 0;
1210 if (bat->bat_capacity < 99){
1211 bat->bat_capacity++;
1212 bat->bat_change = 1;
1216 if (capacity > bat->capacitytmp){
1217 bat->gBatCapacityChargeCnt = 0;
1221 if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
1222 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1224 if (bat->bat_capacity < 99){
1225 bat->bat_capacity++;
1226 bat->bat_change = 1;
1233 if (capacity > bat->capacitytmp){
1234 bat->gBatCapacityChargeCnt = 0;
1238 if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
1239 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1241 if (bat->bat_capacity <= 99){
1242 bat->bat_capacity++;
1243 bat->bat_change = 1;
1251 bat->capacitytmp = capacity;
1253 static void rk_battery_charger(struct rk30_adc_battery_data *bat)
1257 int timer_of_discharge_sample = DISCHARGE_MIN_SECOND;
1259 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1261 if (capacity < bat->bat_capacity){
1264 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 40; // 13
1268 if(capacity + 3 > bat->bat_capacity )
1269 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -5; //5s
1270 else if(capacity + 7 > bat->bat_capacity )
1271 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -10; //10s
1272 else if(capacity + 10> bat->bat_capacity )
1273 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -25; // 13
1275 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 35; // 13
1277 if(capacity + 3 > bat->bat_capacity )
1278 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -5; //5s
1279 else if(capacity + 7 > bat->bat_capacity )
1280 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -10; //10s
1281 else if(capacity + 10> bat->bat_capacity )
1282 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 15; // 13
1284 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 20; // 13
1287 if (++(bat->gBatCapacityDisChargeCnt) >= timer_of_discharge_sample){
1288 bat->gBatCapacityDisChargeCnt = 0;
1289 if (bat->bat_capacity > 0){
1290 bat->bat_capacity-- ;
1291 bat->bat_change = 1;
1296 bat->gBatCapacityDisChargeCnt = 0;
1298 bat->gBatCapacityChargeCnt = 0;
1299 bat->gBatCapacityusbdisChargeCnt=0 ;
1300 bat->gBatCapacityusbChargeCnt =0;
1301 bat->gBatCapacityacChargeCnt = 0;
1302 bat->start_voltage_status = 0;
1304 bat->capacitytmp = capacity;
1310 static void rk30_adc_battery_capacity_samples(struct rk30_adc_battery_data *bat)
1312 // int capacity = 0;
1313 // int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1314 // int timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE;
1316 if (bat->bat_status_cnt < NUM_VOLTAGE_SAMPLE) {
1317 bat->gBatCapacityDisChargeCnt = 0;
1318 bat->gBatCapacityChargeCnt = 0;
1319 bat->gBatCapacityacChargeCnt = 0;
1323 if(1 == bat->charge_level){
1324 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1325 if(1 == bat->usb_charging)
1326 rk_usb_charger(bat);
1333 rk_battery_charger(bat);
1339 //static int poweron_check = 0;
1340 static void rk30_adc_battery_poweron_capacity_check(struct rk30_adc_battery_data *bat)
1343 int new_capacity, old_capacity;
1346 new_capacity = bat ->bat_capacity;
1349 old_capacity = rk30_adc_battery_load_capacity();
1350 if( old_capacity >= 0 ){
1356 if ((old_capacity < 0) || (old_capacity > 100)){
1357 old_capacity = new_capacity;
1360 if (bat ->bat_status == POWER_SUPPLY_STATUS_FULL){
1361 if (new_capacity > 80){
1362 bat ->bat_capacity = 100;
1365 else if (bat ->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
1367 bat->bat_capacity = (old_capacity < 10) ? (old_capacity + 2) : old_capacity;
1369 bat ->bat_capacity = old_capacity + 5;
1370 if(bat->bat_capacity == 100)
1371 bat->bat_capacity = 99;
1372 if(bat->bat_capacity == 0)
1373 bat->bat_capacity =1;
1375 DBG("oldcapacity %d,newcapacity %d,capacity %d\n", old_capacity
1376 , new_capacity, bat->bat_capacity);
1378 bat ->bat_change = 1;
1380 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1381 #define to_battery_usb_device_info(x) container_of((x), \
1382 struct rk30_adc_battery_data, usb);
1384 static int rk30_adc_battery_get_usb_property(struct power_supply *psy,
1385 enum power_supply_property psp,
1386 union power_supply_propval *val)
1388 struct rk30_adc_battery_data *bat= to_battery_usb_device_info(psy);
1391 case POWER_SUPPLY_PROP_ONLINE:
1392 if (psy->type == POWER_SUPPLY_TYPE_USB){
1393 val->intval = bat ->usb_charging;
1394 if (strstr(saved_command_line,"charger") == NULL){
1395 if( 1 == bat->charge_full_flag)
1409 static enum power_supply_property rk30_adc_battery_usb_props[] = {
1411 POWER_SUPPLY_PROP_ONLINE,
1414 static struct power_supply rk30_usb_supply =
1417 .type = POWER_SUPPLY_TYPE_USB,
1419 .get_property = rk30_adc_battery_get_usb_property,
1421 .properties = rk30_adc_battery_usb_props,
1422 .num_properties = ARRAY_SIZE(rk30_adc_battery_usb_props),
1425 static irqreturn_t rk30_adc_battery_dc_wakeup(int irq, void *dev_id)
1427 disable_irq_nosync(irq);
1428 queue_work(gBatteryData->wq, &gBatteryData->dcwakeup_work);
1432 #define to_battery_ac_device_info(x) container_of((x), \
1433 struct rk30_adc_battery_data, ac);
1435 static int rk30_adc_battery_get_ac_property(struct power_supply *psy,
1436 enum power_supply_property psp,
1437 union power_supply_propval *val)
1441 struct rk30_adc_battery_data *bat = to_battery_ac_device_info(psy);
1444 case POWER_SUPPLY_PROP_ONLINE:
1445 if (psy->type == POWER_SUPPLY_TYPE_MAINS){
1446 val->intval = bat ->ac_charging;
1447 if (strstr(saved_command_line,"charger") == NULL ){
1448 if( 1 == bat->charge_full_flag)
1462 static enum power_supply_property rk30_adc_battery_ac_props[] =
1464 POWER_SUPPLY_PROP_ONLINE,
1467 static struct power_supply rk30_ac_supply =
1470 .type = POWER_SUPPLY_TYPE_MAINS,
1472 .get_property = rk30_adc_battery_get_ac_property,
1474 .properties = rk30_adc_battery_ac_props,
1475 .num_properties = ARRAY_SIZE(rk30_adc_battery_ac_props),
1477 static void rk30_adc_battery_dcdet_delaywork(struct work_struct *work)
1481 struct rk30_adc_battery_platform_data *pdata;
1484 struct rk30_adc_battery_data *bat = container_of((work), \
1485 struct rk30_adc_battery_data, dcwakeup_work);
1488 irq = gpio_to_irq(pdata->dc_det_pin);
1489 free_irq(irq, NULL);
1491 irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
1492 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);// reinitialize the DC irq
1494 free_irq(irq, NULL);
1497 power_supply_changed(&bat ->ac);
1498 rk_send_wakeup_key();
1500 bat ->bat_status_cnt = 0; //the state of battery is change
1505 static int rk30_adc_battery_get_status(struct rk30_adc_battery_data *bat)
1507 return (bat->bat_status);
1510 static int rk30_adc_battery_get_health(struct rk30_adc_battery_data *bat)
1512 return POWER_SUPPLY_HEALTH_GOOD;
1515 static int rk30_adc_battery_get_present(struct rk30_adc_battery_data *bat)
1517 return (bat->bat_voltage < BATT_MAX_VOL_VALUE) ? 0 : 1;
1520 static int rk30_adc_battery_get_voltage(struct rk30_adc_battery_data *bat)
1522 return (bat->bat_voltage );
1525 static int rk30_adc_battery_get_capacity(struct rk30_adc_battery_data *bat)
1527 return (bat->bat_capacity);
1530 static int rk30_adc_battery_get_property(struct power_supply *psy,
1531 enum power_supply_property psp,
1532 union power_supply_propval *val)
1536 struct rk30_adc_battery_data *bat = container_of((psy), \
1537 struct rk30_adc_battery_data, bat);
1539 case POWER_SUPPLY_PROP_STATUS:
1540 val->intval = rk30_adc_battery_get_status(bat);
1541 DBG("gBatStatus=%d\n",val->intval);
1543 case POWER_SUPPLY_PROP_HEALTH:
1544 val->intval = rk30_adc_battery_get_health(bat);
1545 DBG("gBatHealth=%d\n",val->intval);
1547 case POWER_SUPPLY_PROP_PRESENT:
1548 val->intval = rk30_adc_battery_get_present(bat);
1549 DBG("gBatPresent=%d\n",val->intval);
1551 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
1552 // val ->intval = rk30_adc_battery_get_voltage(bat);
1553 voltage = rk30_adc_battery_get_voltage(bat);
1554 val->intval = voltage*1000;
1555 DBG("gBatVoltage=%d\n",val->intval);
1557 case POWER_SUPPLY_PROP_CAPACITY:
1558 if(battery_test_flag == 2)
1561 val->intval = rk30_adc_battery_get_capacity(bat);
1562 DBG("gBatCapacity=%d%%\n",val->intval);
1564 case POWER_SUPPLY_PROP_TECHNOLOGY:
1565 val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
1567 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
1568 val->intval = BATT_MAX_VOL_VALUE;
1570 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
1571 val->intval = BATT_ZERO_VOL_VALUE;
1581 static enum power_supply_property rk30_adc_battery_props[] = {
1583 POWER_SUPPLY_PROP_STATUS,
1584 POWER_SUPPLY_PROP_HEALTH,
1585 POWER_SUPPLY_PROP_PRESENT,
1586 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1587 POWER_SUPPLY_PROP_TECHNOLOGY,
1588 POWER_SUPPLY_PROP_CAPACITY,
1589 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
1590 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
1593 static struct power_supply rk30_battery_supply =
1596 .type = POWER_SUPPLY_TYPE_BATTERY,
1598 .get_property = rk30_adc_battery_get_property,
1600 .properties = rk30_adc_battery_props,
1601 .num_properties = ARRAY_SIZE(rk30_adc_battery_props),
1605 static void rk30_adc_battery_resume_check(struct rk30_adc_battery_data *bat)
1609 int new_capacity, old_capacity;
1610 // struct rk30_adc_battery_data *bat = gBatteryData;
1612 bat ->old_charge_level = -1;
1613 bat ->pSamples = bat->adc_samples;
1615 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1617 level = oldlevel = rk_battery_get_status(bat);//rk30_adc_battery_status_samples(bat);//init charge status
1619 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++) { //0.3 s
1622 rk30_adc_battery_voltage_samples(bat); //get voltage
1623 level = rk_battery_get_status(bat);// rk30_adc_battery_status_samples(bat); //check charge status
1624 if (oldlevel != level){
1625 oldlevel = level; //if charge status changed, reset sample
1629 new_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1630 old_capacity =bat-> suspend_capacity;
1632 //if (bat->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
1635 bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity;
1638 bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; // aviod the value of capacity increase dicharge
1641 if (batt_gpio_is_valid(bat->pdata->batt_low_pin)) {
1642 if (gpio_get_value(bat ->pdata->batt_low_pin) == bat ->pdata->batt_low_level)
1643 bat->bat_capacity = 0;
1649 static int rk30_adc_battery_suspend(struct platform_device *dev, pm_message_t state)
1652 struct rk30_adc_battery_data *data = platform_get_drvdata(dev);
1654 data ->suspend_capacity = data->bat_capacity;
1655 data ->suspend_time = get_seconds();
1656 cancel_delayed_work(&data ->delay_work);
1658 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
1660 irq = gpio_to_irq(data ->pdata->batt_low_pin);
1662 enable_irq_wake(irq);
1668 static int rk30_adc_battery_resume(struct platform_device *dev)
1671 struct rk30_adc_battery_data *data = platform_get_drvdata(dev);
1672 if( data->bat_capacity < 10 ){
1673 wake_lock_timeout(&batt_wake_lock_detect_lowpower,15*HZ);
1674 data->bat_change = 1;
1676 data ->resume_time = get_seconds();
1677 data ->resume = true;
1678 queue_delayed_work(data->wq, &data ->delay_work, msecs_to_jiffies(100));
1679 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
1681 irq = gpio_to_irq(data ->pdata ->batt_low_pin);
1682 disable_irq_wake(irq);
1688 #define rk30_adc_battery_suspend NULL
1689 #define rk30_adc_battery_resume NULL
1693 unsigned long AdcTestCnt = 0;
1694 static void rk30_adc_battery_timer_work(struct work_struct *work)
1696 struct rk30_adc_battery_data *bat = container_of((work), struct
1697 rk30_adc_battery_data, delay_work.work);
1701 // if( (bat->resume_time - bat->suspend_time) >= 1800 )
1702 rk30_adc_battery_resume_check(bat);
1704 //bat->bat_capacity = bat->suspend_capacity;
1705 bat ->resume = false;
1706 bat ->bat_change =1;
1709 bat->stop_check = 1;
1710 if( 1 == bat ->lower_power_flag ){
1711 bat ->bat_capacity = 0;
1712 bat ->bat_change =1;
1714 if (bat ->poweron_check){
1715 bat ->poweron_check = 0;
1716 rk30_adc_battery_poweron_capacity_check(bat);
1719 bat ->charge_level = rk_battery_get_status(bat);
1720 DBG("bat ->charge_level =%d\n", bat ->charge_level);
1721 rk30_adc_battery_status_samples(bat);
1722 rk30_adc_battery_voltage_samples(bat);
1723 rk30_adc_battery_capacity_samples(bat);
1725 if( 0 == bat ->pdata ->charging_sleep){
1726 if( 1 == bat->charge_level){ // charge
1727 if(0 == bat->status_lock ){
1728 wake_lock(&batt_wake_lock); //lock
1729 bat ->status_lock = 1;
1733 if(1 == bat ->status_lock ){
1734 wake_unlock(&batt_wake_lock); //unlock
1735 bat ->status_lock = 0;
1741 /*update battery parameter after adc and capacity has been changed*/
1742 if(bat ->bat_change){
1743 bat ->bat_change= 0;
1744 if (strstr(saved_command_line,"charger") == NULL){ //when low charging-current,not in charging-displays
1745 if(0 == bat ->bat_capacity){
1746 bat ->ac_charging = 0;
1747 bat ->usb_charging = 0;
1751 rk30_adc_battery_put_capacity(bat ->bat_capacity);
1752 power_supply_changed(&bat ->bat);
1753 power_supply_changed(&bat ->ac);
1754 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1755 power_supply_changed(&bat ->usb);
1760 //if (rk30_battery_dbg_level){
1761 if (++AdcTestCnt >= 2)
1765 DBG("Status = %d, RealAdcVal = %d, RealVol = %d,gBatVol = %d, gBatCap = %d, RealCapacity = %d, batt_dischargecnt = %d\n, chargecnt = %d,ac_count = %d, usb_count =%d ,usb_dischargecount =%d\n",
1766 bat ->bat_status, bat ->adc_val, rk_adc_voltage(bat, bat ->adc_val),
1767 bat ->bat_voltage, bat ->bat_capacity, bat ->capacitytmp, bat ->gBatCapacityDisChargeCnt, bat ->gBatCapacityChargeCnt,
1768 bat ->gBatCapacityacChargeCnt, bat ->gBatCapacityusbChargeCnt, bat ->gBatCapacityusbdisChargeCnt);
1772 queue_delayed_work(bat ->wq, &bat ->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
1777 static int rk30_adc_battery_io_init(struct rk30_adc_battery_platform_data *pdata)
1781 if (batt_gpio_is_valid(pdata->dc_det_pin)) {
1782 ret = gpio_request(pdata->dc_det_pin, NULL);
1784 pr_info("failed to request dc_det gpio\n");
1788 ret = gpio_direction_input(pdata->dc_det_pin);
1790 pr_info("failed to set gpio dc_det input\n");
1796 if (batt_gpio_is_valid(pdata->charge_ok_pin)) {
1797 ret = gpio_request(pdata->charge_ok_pin, NULL);
1799 pr_err("failed to request charge_ok gpio\n");
1803 ret = gpio_direction_input(pdata->charge_ok_pin);
1805 pr_err("failed to set gpio charge_ok input\n");
1810 if (batt_gpio_is_valid(pdata->batt_low_pin)) {
1811 ret = gpio_request(pdata->batt_low_pin, NULL);
1813 pr_err("failed to request batt_low_pin gpio\n");
1817 ret = gpio_direction_input(pdata->batt_low_pin);
1819 pr_err("failed to set gpio batt_low_pin input\n");
1829 extern void kernel_power_off(void);
1830 int get_battery_status(void)
1832 return system_lowerpower;
1834 static int rk_adc_battery_poweron_status(struct rk30_adc_battery_data *bat)
1837 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1841 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
1843 if (get_ac_status(bat) ){
1844 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1845 bat -> ac_charging = 1;
1846 if (is_charge_ok(bat) == 1){
1847 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1848 bat->bat_capacity = 100;
1850 power_supply_changed(&bat ->ac);
1853 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1854 otg_status = dwc_otg_check_dpdm();
1855 if( 0 != otg_status ){
1856 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1857 if (is_charge_ok(bat) == 1){
1858 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1859 bat->bat_capacity = 100;
1863 if(otg_status == 1){
1864 bat->usb_charging = 1;
1865 if(bat -> pdata ->control_usb_charging)
1866 bat -> pdata ->control_usb_charging(0);
1867 }else if(otg_status == 2){
1868 bat->usb_charging = 0;
1869 bat -> ac_charging = 1;
1870 if(bat -> pdata ->control_usb_charging)
1871 bat -> pdata ->control_usb_charging(1);
1873 bat->usb_charging = 0;
1875 printk("charge_status = %d\n",otg_status);
1877 power_supply_changed(&bat ->ac);
1878 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1879 power_supply_changed(&bat ->usb);
1881 if((bat -> ac_charging == 1)||(bat->usb_charging == 1)){
1882 bat ->old_charge_level =1;
1883 bat->charge_level = 1;
1886 bat ->old_charge_level =0;
1887 bat->charge_level = 0;
1894 static void rk30_adc_battery_check(struct rk30_adc_battery_data *bat)
1898 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
1899 int check_data[NUM_VOLTAGE_SAMPLE];
1900 //bat ->old_charge_level
1901 // pSamples = bat->adc_samples;
1904 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1906 DBG("first_adc_value is %d\n", bat->adc_val);
1907 level = oldlevel = rk_adc_battery_poweron_status(bat);// rk30_adc_battery_status_samples(bat);//init charge status
1909 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
1911 rk30_adc_battery_voltage_samples(bat); //get voltage
1912 //level = rk30_adc_battery_status_samples(bat); //check charge status
1914 level = rk_adc_battery_poweron_status(bat);
1916 if (oldlevel != level){
1917 oldlevel = level; //if charge status changed, reset sample
1922 for(i=0; i< NUM_VOLTAGE_SAMPLE; i++){
1924 check_data[i] = bat->adc_val;
1926 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1927 bat->adc_value += check_data[i];
1929 bat->adc_value /= NUM_VOLTAGE_SAMPLE;
1931 bat->bat_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage); //init bat_capacity
1932 bat->capacitytmp = bat->bat_capacity;
1933 level = rk_adc_battery_poweron_status(bat);
1934 if((1 == level)&&(0 == bat->start_voltage_status )){
1935 bat->charge_start_voltage = bat->bat_voltage;
1936 bat->start_voltage_status = 1;
1937 bat->charge_start_capacity = bat->bat_capacity;
1938 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1939 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1942 if (get_ac_status(bat) ){
1943 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1944 bat -> ac_charging = 1;
1945 if (is_charge_ok(bat) == 1){
1946 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1947 bat->bat_capacity = 100;
1950 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1951 if( 0 != dwc_otg_check_dpdm() ){
1952 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1953 if (is_charge_ok(bat) == 1){
1954 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1955 bat->bat_capacity = 100;
1959 if(dwc_otg_check_dpdm() == 1){
1960 bat->usb_charging = 1;
1961 if(bat -> pdata ->control_usb_charging)
1962 bat -> pdata ->control_usb_charging(0);
1963 }else if(dwc_otg_check_dpdm() == 2){
1964 bat->usb_charging = 0;
1965 bat -> ac_charging = 1;
1966 if(bat -> pdata ->control_usb_charging)
1967 bat -> pdata ->control_usb_charging(1);
1969 bat->usb_charging = 0;
1972 power_supply_changed(&bat ->ac);
1973 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1974 power_supply_changed(&bat ->usb);
1976 if((bat -> ac_charging == 1)||(bat->usb_charging == 1)){
1977 bat ->old_charge_level =1;
1978 bat->charge_level = 1;
1983 if (bat->bat_capacity == 0) {
1984 bat->bat_capacity = 1;
1985 system_lowerpower = 1;
1989 if(0 !=bat ->pdata->low_voltage_protection ){
1990 if (bat->bat_voltage <= bat->pdata->low_voltage_protection) {
1991 system_lowerpower = 1;
1992 printk("protection lower power .....\n");
1995 if (bat->bat_voltage <= BATT_ZERO_VOL_VALUE) {
1996 system_lowerpower = 1;
1997 pr_info("lower power bat->bat_voltage = %d\n"
1998 , bat->bat_voltage);
2003 if ((bat->bat_voltage <= BATT_ZERO_VOL_VALUE)&&(bat->bat_status != POWER_SUPPLY_STATUS_CHARGING)){
2010 static void rk30_adc_battery_lowerpower_delaywork(struct work_struct *work)
2014 struct rk30_adc_battery_data *bat = container_of((work), \
2015 struct rk30_adc_battery_data, lowerpower_work);
2017 if (batt_gpio_is_valid(bat->pdata->batt_low_pin)) {
2018 irq = gpio_to_irq(bat ->pdata ->batt_low_pin);
2022 printk("lowerpower\n");
2027 static irqreturn_t rk30_adc_battery_low_wakeup(int irq,void *dev_id)
2029 queue_work(gBatteryData->wq, &gBatteryData->lowerpower_work);
2032 static void rk_lowerpower_check(struct rk30_adc_battery_data *bat)
2036 int check_data[NUM_VOLTAGE_SAMPLE];
2038 for(i=0; i< NUM_VOLTAGE_SAMPLE; i++){
2040 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
2041 check_data[i] = bat->adc_val;
2043 adc_val += check_data[i];
2045 adc_val /=NUM_VOLTAGE_SAMPLE;
2047 DBG(">>>>>>>>>>>one>>>%d, two<<<<<%d<<<<\n",bat->adc_value,adc_val);
2048 DBG(">>>>>>>>>>>firset-value>>>%d, second-value<<<<<%d<<<<\n",rk_adc_voltage(bat, bat->adc_value),rk_adc_voltage(bat, adc_val));
2050 if((adc_val >= bat->adc_value+5) &&(bat->bat_status == POWER_SUPPLY_STATUS_NOT_CHARGING ) )//
2052 printk("%d,%d\n",adc_val,bat->adc_value);
2053 printk("lower-power shutdown");
2058 static void rk_adc_battery_check_work(struct work_struct *work)
2060 struct rk30_adc_battery_data *bat =
2061 container_of((work), struct
2062 rk30_adc_battery_data, check_work.work);
2064 if(1 == get_ac_status(bat)){
2065 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
2066 bat -> ac_charging = 1;
2069 power_supply_changed(&bat ->ac);
2070 if(bat->stop_check != 1)
2071 queue_delayed_work(bat ->wq, &bat ->check_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2074 static void poweron_lowerpoer_handle(struct rk30_adc_battery_data *bat)
2076 #ifdef CONFIG_LOGO_LOWERPOWER_WARNING
2077 if((1 == get_battery_status())&&(bat->bat_status == POWER_SUPPLY_STATUS_NOT_CHARGING )){
2084 static int battery_notifier_call(struct notifier_block *nb,
2085 unsigned long event, void *data)
2087 struct rk30_adc_battery_data *bat=
2088 container_of(nb, struct rk30_adc_battery_data, battery_nb);
2092 rk_lowerpower_check(bat);
2096 poweron_lowerpoer_handle(bat);
2105 static int rk31_adcbat_parse_dt(struct platform_device *pdev, struct
2106 rk30_adc_battery_platform_data *data)
2108 struct device_node *node = pdev->dev.of_node;
2109 enum of_gpio_flags flags;
2110 struct property *prop;
2117 struct iio_channel *channels;
2120 channels = iio_channel_get_all(&pdev->dev);
2121 if (IS_ERR(channels))
2122 pr_err("get adc channels fails\n");
2123 while (channels[num].indio_dev)
2125 data->chan = &channels[0];
2127 data->ref_voltage_chan = &channels[1];
2128 ret = of_property_read_u32(node, "auto_calibration", &value);
2130 pr_info("%s:unsupport auto_calibration\n", __func__);
2133 data->auto_calibration = value;
2135 ret = of_property_read_u32(node, "ref_voltage", &value);
2137 pr_info("%s:unsupport ref_voltage\n", __func__);
2140 data->reference_voltage = value;
2142 /* determine the number of config info */
2143 prop = of_find_property(node, "bat_table", &length);
2147 length /= sizeof(u32);
2150 size = (sizeof(*data->dts_batt_table)) * length;
2151 data->dts_batt_table =
2152 devm_kzalloc(&(pdev->dev), size, GFP_KERNEL);
2153 if (!data->dts_batt_table)
2156 ret = of_property_read_u32_array(node
2157 , "bat_table", data->dts_batt_table, length);
2162 for (i = 4; i < length; i++) {
2163 batt_table[i] = data->dts_batt_table[i];
2165 pr_info("data->dts_batt_table[ %d ] %d %d\n", i
2166 , data->dts_batt_table[i], batt_table[i]);
2168 data->dc_det_pin = of_get_named_gpio_flags(node
2169 , "dc_det_gpio", 0, &flags);
2170 if (data->dc_det_pin == -EPROBE_DEFER)
2171 pr_info("%s dc_det_gpio error\n", __func__);
2173 if (batt_gpio_is_valid(data->dc_det_pin))
2174 data->dc_det_level = (flags & OF_GPIO_ACTIVE_LOW)
2175 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2177 data->batt_low_pin = of_get_named_gpio_flags(node
2178 , "bat_low_gpio", 0, &flags);
2179 if (data->batt_low_pin == -EPROBE_DEFER)
2180 pr_info("%s bat_low_gpio error\n", __func__);
2182 if (batt_gpio_is_valid(data->batt_low_pin))
2183 data->batt_low_level = (flags & OF_GPIO_ACTIVE_LOW)
2184 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2186 data->charge_ok_pin = of_get_named_gpio_flags(node
2187 , "chg_ok_gpio", 0, &flags);
2188 if (data->charge_ok_pin == -EPROBE_DEFER)
2189 pr_info("%s chg_ok_gpio error\n", __func__);
2191 if (batt_gpio_is_valid(data->charge_ok_pin))
2192 data->charge_ok_level = (flags & OF_GPIO_ACTIVE_LOW)
2193 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2195 ret = of_property_read_u32(node, "is_dc_charge", &value);
2197 pr_info("%s:hardware unsupport dc charge\n", __func__);
2200 data->is_dc_charge = value;
2202 ret = of_property_read_u32(node, "is_usb_charge"
2205 pr_err("%s:hardware unsupport usb charge\n", __func__);
2208 data->is_usb_charge = value;
2210 pr_info("rk30 battery:support %s %s charger\n",
2211 data->is_dc_charge ? "DC" : ""
2212 , data->is_usb_charge ? "USB" : "");
2217 static int rk31_adcbat_parse_dt(struct platform_device
2218 *dev, struct rk30_adc_battery_platform_data *data)
2225 static int rk30_adc_battery_probe(struct platform_device *pdev)
2231 struct rk30_adc_battery_data *data;
2232 struct rk30_adc_battery_platform_data *pdata;
2233 #ifdef CONFIG_MACH_RK_FAC
2235 for(i=0;i<BATT_NUM;i++)
2237 batt_table[6+i]=pdata->chargeArray[i];
2238 batt_table[BATT_NUM+6+i]=pdata->chargeArray[i];
2241 gSecondsCnt = get_seconds();
2242 /*data = kzalloc(sizeof(*data), GFP_KERNEL);*/
2243 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
2246 goto err_data_alloc_failed;
2249 /*pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);*/
2250 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
2251 if (pdata == NULL) {
2253 goto err_pdata_alloc_failed;
2255 memset(data, 0, sizeof(struct rk30_adc_battery_data));
2256 gBatteryData = data;
2257 platform_set_drvdata(pdev, data);
2259 data->pdata = pdata;
2260 data->status_lock = 0;
2261 data->old_charge_level = -1;
2262 data->capacitytmp = 0;
2263 data->suspend_capacity = 0;
2264 data->ac_charging = 0;
2265 data->usb_charging = 0;
2266 data->full_times = 0;
2267 data->gBatCapacityDisChargeCnt =0;
2268 data->gBatCapacityChargeCnt=0;
2269 data->gBatCapacityusbdisChargeCnt=0 ;
2270 data->gBatCapacityusbChargeCnt =0;
2271 data->gBatCapacityacChargeCnt = 0;
2272 data->charge_source_now = 0;
2273 data->charge_soure_old = 0;
2274 data->start_voltage_status = 0;
2275 data->charge_full_flag =0;
2276 data->pSamples = data->adc_samples;
2277 data->lower_power_flag = 0;
2278 data->capacitytmp = 0;
2279 data->time_to_full = 0;
2280 data->stop_check = 0;
2281 data->voltage_to_local = 0;
2283 data->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
2284 wake_lock_init(&batt_wake_lock, WAKE_LOCK_SUSPEND, "batt_lock");
2285 wake_lock_init(&charge_display_lock, WAKE_LOCK_SUSPEND, "charge_display_lock"); //charge_display_lock
2286 wake_lock_init(&batt_wake_lock_detect_lowpower
2287 , WAKE_LOCK_SUSPEND, "lowpower_lock");
2289 ret = rk31_adcbat_parse_dt(pdev, data->pdata);
2290 /*ret = rk31_adcbat_parse_dt(pdev, pdata);*/
2292 pr_err("failed to find rk30 adc battery platform data\n");
2296 ret = rk30_adc_battery_io_init(data->pdata);
2302 memset(data->adc_samples, 0, sizeof(int)*(NUM_VOLTAGE_SAMPLE + 2));
2304 //register adc for battery sample
2305 data->wq = create_singlethread_workqueue("adc_battd");
2307 /*data->client = client;*/
2308 data->adc_val = rk_adc_battery_iio_read(data->pdata);
2310 data ->bat = rk30_battery_supply;
2311 ret = power_supply_register(&pdev->dev,&data ->bat);
2314 printk(KERN_INFO "fail to battery power_supply_register\n");
2315 goto err_battery_failed;
2317 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
2318 data ->usb = rk30_usb_supply;
2319 ret = power_supply_register(&pdev->dev, &data ->usb);
2322 printk(KERN_INFO "fail to usb power_supply_register\n");
2323 goto err_usb_failed;
2326 data ->ac = rk30_ac_supply;
2327 ret = power_supply_register(&pdev->dev, &data ->ac);
2330 printk(KERN_INFO "fail to ac power_supply_register\n");
2334 //init dc dectet irq & delay work
2335 if (batt_gpio_is_valid(data->pdata->dc_det_pin)) {
2336 INIT_WORK(&data->dcwakeup_work, rk30_adc_battery_dcdet_delaywork);
2338 irq = gpio_to_irq(data->pdata->dc_det_pin);
2339 irq_flag = gpio_get_value(data->pdata->dc_det_pin)
2340 ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
2341 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);
2344 printk("failed to request dc det irq\n");
2345 goto err_dcirq_failed;
2347 enable_irq_wake(irq);
2352 ret = device_create_file(&pdev->dev,&dev_attr_batparam);
2355 printk(KERN_ERR "failed to create bat param file\n");
2356 goto err_battery_failed;
2359 ret = create_sysfs_interfaces(&pdev->dev);
2364 "device rk30_adc_batterry sysfs register failed\n");
2368 //Power on Battery detect
2369 rk30_adc_battery_check(data);
2371 // data->wq = create_singlethread_workqueue("adc_battd");
2372 INIT_DELAYED_WORK(&data->delay_work, rk30_adc_battery_timer_work);
2374 if (1 == data->pdata->save_capacity) {
2375 queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS*10));
2376 data ->poweron_check = 1;
2378 queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2379 data ->poweron_check = 0;
2381 INIT_DELAYED_WORK(&data->check_work, rk_adc_battery_check_work);
2382 queue_delayed_work(data ->wq, &data ->check_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2383 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
2384 if (0 == gpio_get_value(data->pdata->batt_low_pin)) {
2386 if (gpio_get_value(data->pdata->batt_low_pin) == 0) {
2387 printk("lower power\n");
2392 INIT_WORK(&data->lowerpower_work, rk30_adc_battery_lowerpower_delaywork);
2393 irq = gpio_to_irq(data->pdata->batt_low_pin);
2394 ret = request_irq(irq, rk30_adc_battery_low_wakeup, IRQF_TRIGGER_LOW, "batt_low_irq", NULL);
2397 printk("failed to request batt_low_irq irq\n");
2398 goto err_lowpowerirq_failed;
2403 data->battery_nb.notifier_call = battery_notifier_call;
2404 register_adc_battery_notifier(&data->battery_nb);
2406 printk(KERN_INFO "rk30_adc_battery: driver initialized\n");
2410 power_supply_unregister(&data ->usb);
2412 power_supply_unregister(&data ->ac);
2415 power_supply_unregister(&data ->bat);
2418 if (batt_gpio_is_valid(data->pdata->dc_det_pin))
2419 free_irq(gpio_to_irq(data->pdata->dc_det_pin), data);
2421 err_lowpowerirq_failed:
2422 if (batt_gpio_is_valid(data->pdata->batt_low_pin))
2423 free_irq(gpio_to_irq(data->pdata->batt_low_pin), data);
2428 err_pdata_alloc_failed:
2430 err_data_alloc_failed:
2433 printk("rk30_adc_battery: error!\n");
2438 static int rk30_adc_battery_remove(struct platform_device *pdev)
2440 struct rk30_adc_battery_data *data = platform_get_drvdata(pdev);
2441 struct rk30_adc_battery_platform_data *pdata = data->pdata;
2443 cancel_delayed_work_sync(&data->delay_work);
2444 if (batt_gpio_is_valid(pdata->dc_det_pin))
2445 cancel_work_sync(&data->dcwakeup_work);
2446 cancel_delayed_work_sync(&data->check_work);
2448 if (batt_gpio_is_valid(pdata->batt_low_pin))
2449 cancel_work_sync(&data->lowerpower_work);
2450 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
2451 power_supply_unregister(&data ->usb);
2453 power_supply_unregister(&data ->ac);
2454 power_supply_unregister(&data ->bat);
2455 if (batt_gpio_is_valid(pdata->dc_det_pin))
2456 free_irq(gpio_to_irq(pdata->dc_det_pin), data);
2464 static const struct of_device_id rk30_adc_battery_dt_match[] = {
2465 { .compatible = "rk30-adc-battery",},
2468 MODULE_DEVICE_TABLE(of, rk30_adc_battery_dt_match);
2472 static struct platform_driver rk30_adc_battery_driver = {
2473 .probe = rk30_adc_battery_probe,
2474 .remove = rk30_adc_battery_remove,
2475 .suspend = rk30_adc_battery_suspend,
2476 .resume = rk30_adc_battery_resume,
2478 .name = "rk30-adc-battery",
2479 .owner = THIS_MODULE,
2480 .of_match_table = of_match_ptr(rk30_adc_battery_dt_match),
2484 static int __init rk30_adc_battery_init(void)
2486 return platform_driver_register(&rk30_adc_battery_driver);
2489 static void __exit rk30_adc_battery_exit(void)
2491 platform_driver_unregister(&rk30_adc_battery_driver);
2493 //module_init(rk30_adc_battery_init);//module_init(rk30_adc_battery_init);//
2494 subsys_initcall(rk30_adc_battery_init);
2495 //fs_initcall(rk30_adc_battery_init);
2496 module_exit(rk30_adc_battery_exit);
2500 MODULE_DESCRIPTION("Battery detect driver for the rk30");
2501 MODULE_AUTHOR("luowei lw@rock-chips.com");
2502 MODULE_LICENSE("GPL");