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 45
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 "};
103 static int g_old_cap = -1;
104 static int g_uboot_incre = 0;
107 #define BATT_MAX_VOL_VALUE 4250/*Full charge volatge*/
108 #define BATT_ZERO_VOL_VALUE 3500/*power down voltage*/
109 #define BATT_NOMAL_VOL_VALUE 3800
111 static int batt_table[2*BATT_NUM+6] =
113 0x4B434F52,0x7461625F,0x79726574,0,100,100,
114 3496, 3548, 3599, 3626, 3655, 3697, 3751, 3812, 3877, 3949, 4030, //discharge
115 3540, 3785, 3842, 3861, 3915, 3980, 4041, 4135, 4169, 4175, 4185 //charge
117 #define adc_to_voltage(adc_val) ((adc_val * BAT_DEFINE_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
119 #define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
120 #define BATT_ZERO_VOL_VALUE 6900 // power down voltage
121 #define BATT_NOMAL_VOL_VALUE 7600
124 static int batt_table[2*BATT_NUM+6] =
126 0x4B434F52,0x7461625F,0x79726574,1,300,100,
127 6800, 7242, 7332, 7404, 7470, 7520, 7610, 7744, 7848, 8016, 8284,//discharge
128 7630, 7754, 7852, 7908, 7956, 8024, 8112, 8220, 8306, 8318, 8328//charge
130 #define adc_to_voltage(adc_val) ((adc_val * BAT_DEFINE_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
137 /********************************************************************************/
144 BATTERY_CAPACITY = 3,
145 BATTERY_AC_ONLINE = 4,
146 BATTERY_STATUS_CHANGED = 5,
147 AC_STATUS_CHANGED = 6,
148 BATTERY_INT_STATUS = 7,
149 BATTERY_INT_ENABLE = 8,
160 struct rk30_adc_battery_data {
163 //struct timer_list timer;
164 struct workqueue_struct *wq;
165 struct delayed_work delay_work;
166 struct delayed_work check_work;
167 struct work_struct dcwakeup_work;
168 struct work_struct lowerpower_work;
171 struct rk30_adc_battery_platform_data *pdata;
173 struct adc_client *client;
175 int adc_samples[NUM_VOLTAGE_SAMPLE+2];
185 int old_charge_level;
187 int gBatCapacityDisChargeCnt;
188 int gBatCapacityChargeCnt;
189 int gBatCapacityacChargeCnt;
190 int gBatCapacityusbChargeCnt ;
191 int gBatCapacityusbdisChargeCnt;
193 int suspend_capacity;
194 int gBatUsbChargeCnt;
197 struct power_supply bat;
198 struct power_supply usb;
199 struct power_supply ac;
200 struct power_supply bk_bat;
208 int charge_source_now;
209 int charge_soure_old;
210 int charge_start_capacity;
211 int charge_start_voltage;
212 int start_voltage_status;
213 int charge_up_proprotion;
214 int charge_down_proportion;
215 int voltage_to_local;
216 unsigned long suspend_time;
217 unsigned long resume_time;
221 int charge_full_flag;
223 struct notifier_block battery_nb;
225 int lower_power_flag;
229 static struct rk30_adc_battery_data *gBatteryData;
230 static struct wake_lock batt_wake_lock;
231 static struct wake_lock batt_wake_lock_detect_lowpower;
232 static struct wake_lock charge_display_lock;
233 int system_lowerpower = 0;
234 extern void kernel_power_off(void);
235 extern int dwc_vbus_status(void);
236 extern int get_gadget_connect_flag(void);
237 extern int dwc_otg_check_dpdm(void);
238 static int is_charge_ok(struct rk30_adc_battery_data *bat);
239 static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat);
240 extern void rk_send_wakeup_key(void);
241 static bool batt_gpio_is_valid(int number)
243 return number > 0 && number < 256;
246 //#define BAT_ADC_TABLE_LEN 11
247 static ssize_t bat_param_read(struct device *dev,struct device_attribute *attr, char *buf)
250 for(i=0;i<BATT_NUM;i++)
251 printk("i=%d batt_table=%d\n",i+6,batt_table[i+6]);
253 for(i=0;i<BATT_NUM;i++)
254 printk("i=%d batt_table=%d\n",i+17,batt_table[i+17]);
257 DEVICE_ATTR(batparam, 0444, bat_param_read, NULL);
260 static ssize_t rkbatt_show_debug_attrs(struct device *dev,
261 struct device_attribute *attr, char *buf)
263 return sprintf(buf, "%d\n", battery_dbg_level);
266 static ssize_t rkbatt_restore_debug_attrs(struct device *dev,
267 struct device_attribute *attr, const char *buf, size_t size)
271 sscanf(buf, "%d", &liTmp);
273 if(liTmp != 0 && liTmp != 1)
275 dev_err(dev, "rk29adc_restore_debug_attrs err\n");
279 battery_dbg_level = liTmp;
284 static ssize_t rkbatt_show_state_attrs(struct device *dev,
285 struct device_attribute *attr, char *buf)
287 // struct rk30_adc_battery_platform_data *pdata = gBatteryData->pdata;
288 int charge_ok_value =0 ;
289 charge_ok_value = is_charge_ok(gBatteryData) ;
292 "gBatVol=%d,gBatCap=%d,charge_ok=%d,%s\n",
293 gBatteryData->bat_voltage,gBatteryData->bat_capacity,
294 charge_ok_value,gDischargeFlag);
297 static ssize_t rkbatt_restore_state_attrs(struct device *dev,
298 struct device_attribute *attr, const char *buf, size_t size)
303 static ssize_t rkbatt_show_value_attrs(struct device *dev,
304 struct device_attribute *attr, char *buf)
306 return sprintf(buf, "pull_up_res =%d,\npull_down_res=%d\n", batt_table[4],batt_table[5]);
309 static ssize_t rkbatt_restore_value_attrs(struct device *dev,
310 struct device_attribute *attr, const char *buf, size_t size)
315 sscanf(buf, "%d,%d", &liUp,&liDown);
317 if(liUp != 0 && liDown != 0)
319 batt_table[4] = liUp;
320 batt_table[5] = liDown;
325 static ssize_t rkbatt_show_flag_attrs(struct device *dev,
326 struct device_attribute *attr, char *buf)
328 return sprintf(buf, "rk29_battery_test_flag=%d\n", battery_test_flag);
330 static ssize_t rkbatt_restore_flag_attrs(struct device *dev,
331 struct device_attribute *attr, const char *buf, size_t size)
335 sscanf(buf, "%d", &liFlag);
339 battery_test_flag = liFlag;
344 static int __init adc_bootloader_setup(char *str)
348 printk("adc.incre is %s\n", str);
349 sscanf(str, "%d", &g_uboot_incre);
353 early_param("adc.incre", adc_bootloader_setup);
355 static ssize_t rkbatt_show_oldcap_attrs(struct device *dev, struct device_attribute *attr, char *buf)
357 return sprintf(buf, "%d\n", g_old_cap);
360 static ssize_t rkbatt_restore_oldcap_attrs(struct device *dev, struct device_attribute *attr, const char *buf, size_t size)
364 sscanf(buf, "%d", &old_cap);
366 if(old_cap >= 0 && old_cap <= 100)
372 dev_err(dev, "rk29adc_restore_oldcap_attrs err\n");
378 static struct device_attribute rkbatt_attrs[] = {
379 __ATTR(state, 0664, rkbatt_show_state_attrs, rkbatt_restore_state_attrs),
380 __ATTR(debug, 0664, rkbatt_show_debug_attrs, rkbatt_restore_debug_attrs),
381 __ATTR(value, 0555, rkbatt_show_value_attrs, rkbatt_restore_value_attrs),
382 __ATTR(flag, 0555, rkbatt_show_flag_attrs, rkbatt_restore_flag_attrs),
383 __ATTR(oldcap, 0664, rkbatt_show_oldcap_attrs, rkbatt_restore_oldcap_attrs),
386 static int rk_adc_battery_iio_read(struct rk30_adc_battery_platform_data *data)
388 struct iio_channel *channel = data->chan;
391 ret = iio_read_channel_raw(channel, &val);
393 pr_err("read channel() error: %d\n", ret);
400 static int create_sysfs_interfaces(struct device *dev)
403 for (liTmep = 0; liTmep < ARRAY_SIZE(rkbatt_attrs); liTmep++) {
405 if (device_create_file(dev, rkbatt_attrs + liTmep)){
413 for ( ; liTmep >= 0; liTmep--){
414 device_remove_file(dev, rkbatt_attrs + liTmep);
417 dev_err(dev, "%s:Unable to create sysfs interface\n", __func__);
424 static int rk30_adc_battery_load_capacity(void)
427 int* p = (int *)value;
428 long fd = sys_open(BATT_FILENAME,O_RDONLY,0);
431 DBG("rk30_adc_battery_load_capacity: open file /data/bat_last_capacity.dat failed\n");
435 sys_read(fd,(char __user *)value,4);
441 static void rk30_adc_battery_put_capacity(int loadcapacity)
444 int* p = (int *)value;
445 long fd = sys_open(BATT_FILENAME,O_CREAT | O_RDWR,0);
448 DBG("rk30_adc_battery_put_capacity: open file /data/bat_last_capacity.dat failed\n");
453 sys_write(fd, (const char __user *)value, 4);
457 static BLOCKING_NOTIFIER_HEAD(adc_battery_chain_head);
459 int register_adc_battery_notifier(struct notifier_block *nb)
461 return blocking_notifier_chain_register(&adc_battery_chain_head, nb);
463 EXPORT_SYMBOL_GPL(register_adc_battery_notifier);
465 int unregister_adc_battery_notifier(struct notifier_block *nb)
467 return blocking_notifier_chain_unregister(&adc_battery_chain_head, nb);
469 EXPORT_SYMBOL_GPL(unregister_adc_battery_notifier);
471 int adc_battery_notifier_call_chain(unsigned long val)
473 return (blocking_notifier_call_chain(&adc_battery_chain_head, val, NULL)
474 == NOTIFY_BAD) ? -EINVAL : 0;
476 EXPORT_SYMBOL_GPL(adc_battery_notifier_call_chain);
478 static void rk_start_charge(struct rk30_adc_battery_data *bat)
480 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
481 if (batt_gpio_is_valid(pdata->charge_set_pin))
482 gpio_direction_output(pdata->charge_set_pin, pdata->charge_set_level);
485 static void rk_stop_charge(struct rk30_adc_battery_data *bat)
487 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
490 if (batt_gpio_is_valid(pdata->charge_set_pin))
491 gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
494 static int get_ac_status(struct rk30_adc_battery_data *bat){
496 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
498 if (batt_gpio_is_valid(pdata->dc_det_pin)) {
499 if (gpio_get_value (pdata->dc_det_pin) == pdata->dc_det_level){
505 if(pdata->is_dc_charging){
506 status = pdata->is_dc_charging();
512 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
514 //state of charge ----running
515 static int get_usb_status2(struct rk30_adc_battery_data *bat){
517 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
518 int usb_status = 0; // 0--dischage ,1 ---usb charge, 2 ---ac charge
519 int vbus_status = dwc_vbus_status();
521 if (1 == vbus_status) {
522 if (0 == get_gadget_connect_flag()){
523 if (++bat->gBatUsbChargeCnt >= NUM_USBCHARGE_IDENTIFY_TIMES){
524 bat->gBatUsbChargeCnt = NUM_USBCHARGE_IDENTIFY_TIMES + 1;
525 usb_status = 2; // non-standard AC charger
526 if(bat ->pdata ->control_usb_charging)
527 bat ->pdata ->control_usb_charging(1);
529 usb_status = 1; // connect to pc
530 if(bat ->pdata ->control_usb_charging)
531 bat ->pdata ->control_usb_charging(0);
535 usb_status = 1; // connect to pc
536 if(bat ->pdata ->control_usb_charging)
537 bat ->pdata ->control_usb_charging(0);
542 bat->gBatUsbChargeCnt = 0;
543 if (2 == vbus_status) {
544 usb_status = 2; //standard AC charger
546 if(bat ->pdata ->control_usb_charging)
547 bat ->pdata ->control_usb_charging(1);
558 static int rk_battery_get_status(struct rk30_adc_battery_data *bat)
561 /* struct rk30_adc_battery_platform_data *pdata = bat->pdata;*/
562 int ac_ac_charging = 0, usb_ac_charging = 0;
565 ac_ac_charging = get_ac_status(bat);
566 if(1 == ac_ac_charging)
569 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
570 if (strstr(saved_command_line,"charger")){
571 wake_lock(&charge_display_lock); //lock
572 if (batt_gpio_is_valid(bat->pdata->usb_det_pin)) {
573 if( gpio_get_value(bat->pdata->usb_det_pin)== bat->pdata->usb_det_level){
574 if(( 1 == usb_ac_charging )||( 1 == ac_ac_charging ))
575 bat -> ac_charging = 1;
576 if(( 1 == bat->usb_charging)||(1 == bat ->ac_charging))
580 if(( 0 == usb_ac_charging )&&( 0 == ac_ac_charging ))
581 bat -> ac_charging = 0;
583 bat->ac_charging = 1;
585 bat->usb_charging = 0;
586 if(1 == bat->ac_charging)
594 if(dwc_otg_check_dpdm() == 0){
595 bat->usb_charging = 0;
597 }else if(dwc_otg_check_dpdm() == 1){
598 bat->usb_charging = 1;
599 if(bat -> pdata ->control_usb_charging)
600 bat -> pdata ->control_usb_charging(0);
601 }else if(dwc_otg_check_dpdm() == 2){
602 bat->usb_charging = 0;
604 if(bat -> pdata ->control_usb_charging)
605 bat -> pdata ->control_usb_charging(1);
607 if((1 == usb_ac_charging)||(1 == ac_ac_charging))
608 bat ->ac_charging = 1;
610 bat ->ac_charging = 0;
612 if(( 0 == bat ->ac_charging )&&(0 == bat->usb_charging )){
623 usb_ac_charging = get_usb_status2(bat); //0 --discharge, 1---usb charging,2----AC charging;
624 if(1 == usb_ac_charging)
625 bat->usb_charging = 1;
627 bat->usb_charging = 0;
630 if((usb_ac_charging == 2)||(ac_ac_charging == 1))
631 bat -> ac_charging = 1;
633 bat -> ac_charging = 0;
635 if((bat->usb_charging == 1)||(bat ->ac_charging ==1))
638 if(1 == bat->ac_charging )
639 bat->charge_source_now = 1; //ac charge
640 else if( 1 == bat->usb_charging){
641 bat->charge_source_now = 2; //ac charge
643 bat->charge_soure_old =0;
644 bat->charge_source_now=0;
646 if(bat->charge_source_now != bat->charge_soure_old){
648 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
649 msleep(1); //mdelay --- > msleep
650 rk30_adc_battery_voltage_samples(bat); //get new voltage
653 bat->charge_soure_old = bat->charge_source_now;
656 DBG("ac_status=%d,usb_status=%d bat->bat_change = %d\n",bat -> ac_charging, bat->usb_charging ,bat->bat_change );
661 static int is_charge_ok(struct rk30_adc_battery_data *bat)
663 int charge_is_ok = 0;
664 struct rk30_adc_battery_platform_data *pdata = bat->pdata;
666 if( 1 != bat->charge_level)
669 if ((!(batt_gpio_is_valid(pdata->charge_ok_pin))) && (
670 pdata->charging_ok == NULL))
673 if (batt_gpio_is_valid(pdata->charge_ok_pin)) {
674 if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
677 }else if( pdata->charging_ok){
679 charge_is_ok = pdata->charging_ok();
687 static int rk30_adc_battery_status_samples(struct rk30_adc_battery_data *bat)
691 charge_level = bat ->charge_level;//rk_battery_get_status(bat);
693 if (charge_level != bat->old_charge_level){
694 bat->old_charge_level = charge_level;
698 rk_start_charge(bat);
704 bat->bat_status_cnt = 0;
706 if(( 1 == charge_level )&&(1 == bat->charge_full_flag) && (bat->bat_capacity < 90)){
707 rk_start_charge(bat); //recharge
708 if(bat->pdata->ctrl_charge_led != NULL)
709 bat->pdata->ctrl_charge_led(0);
711 }else if (charge_level) {
712 rk_start_charge(bat);
719 if(charge_level == 0){
721 bat->charge_full_flag = 0;
723 bat->time_to_full = 0;
724 bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
727 if( is_charge_ok(bat) == INVALID_CHARGE_CHECK){
728 if (bat->bat_capacity == 100){
729 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
730 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
732 bat->charge_full_flag = 1;
733 if(bat->pdata->ctrl_charge_led != NULL)
734 bat->pdata->ctrl_charge_led(1);
739 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
740 if((bat->bat_capacity == 99)&&(bat->time_to_full == 0)){
741 bat->time_to_full = get_seconds();
742 }else if(bat->bat_capacity == 99)
744 if(get_seconds() - bat->time_to_full > 1800){
745 bat->bat_capacity = 100;
746 bat->time_to_full = 0;
751 if(bat->pdata->ctrl_charge_led != NULL)
752 bat->pdata->ctrl_charge_led(0);
754 }else{ // pin of charge_ok_pin
755 if (is_charge_ok(bat) != CHARGE_IS_OK ){
758 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
760 if((bat->bat_capacity == 99)&&(bat->time_to_full == 0)){
761 bat->time_to_full = get_seconds();
762 }else if(bat->bat_capacity == 99)
764 if(get_seconds() - bat->time_to_full > 1800){
765 bat->bat_capacity = 100;
766 bat->time_to_full = 0;
775 if (bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) {
776 bat->full_times = NUM_CHARGE_FULL_DELAY_TIMES + 1;
779 if ((bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) && (bat->bat_capacity >= 99)){
780 if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
781 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
783 bat->bat_capacity = 100;
788 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
797 static int rk_adc_battery_iio_read_refvol(struct rk30_adc_battery_platform_data *data)
799 struct iio_channel *channel = data->ref_voltage_chan;
802 ret = iio_read_channel_raw(channel, &val);
804 pr_err("read channel() error: %d\n", ret);
810 static int get_ref_voltage(struct rk30_adc_battery_data *bat)
813 struct regulator *logic;
814 int voltage, ref_voltage;
816 logic = regulator_get(NULL, "vdd_arm");
817 voltage = regulator_get_voltage(logic);
818 data_value = rk_adc_battery_iio_read_refvol(bat->pdata);
819 ref_voltage = voltage*1024/data_value/1000;
823 static int rk_adc_voltage(struct rk30_adc_battery_data *bat, int value)
828 ref_voltage = bat ->pdata->reference_voltage;
831 if (bat->pdata->auto_calibration == 1)
832 ref_voltage = get_ref_voltage(bat);
833 voltage = (value * ref_voltage * (batt_table[4] + batt_table[5])) / (1024 * batt_table[5]);
834 DBG("ref_voltage =%d, voltage=%d\n", ref_voltage, voltage);
837 voltage = adc_to_voltage(value);
839 DBG("ref_voltage =%d, voltage=%d\n", ref_voltage, voltage);
843 static void rk_handle_ripple(struct rk30_adc_battery_data *bat, int status)
848 if (bat->pdata->use_board_table){
849 p_table = bat->pdata->board_batt_table;
852 if(bat->bat_voltage >= p_table[2*BATT_NUM +5]+ 10)
853 bat->bat_voltage = p_table[2*BATT_NUM +5] + 10;
854 else if(bat->bat_voltage <= p_table[BATT_NUM +6] - 10)
855 bat->bat_voltage = p_table[BATT_NUM +6] - 10;
858 if(bat->bat_voltage >= p_table[BATT_NUM +5]+ 10)
859 bat->bat_voltage = p_table[BATT_NUM +5] + 10;
860 else if(bat->bat_voltage <= p_table[6] - 10)
861 bat->bat_voltage = p_table[6] - 10;
867 //static int *pSamples;
868 static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat)
871 int i,*pStart = bat->adc_samples, num = 0;
872 int level = bat->charge_level;
875 value = bat->adc_val;
876 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
878 *(bat->pSamples++) = rk_adc_voltage(bat,value);
880 bat->bat_status_cnt++;
881 if (bat->bat_status_cnt > NUM_VOLTAGE_SAMPLE) bat->bat_status_cnt = NUM_VOLTAGE_SAMPLE + 1;
883 num = bat->pSamples - pStart;
885 if (num >= NUM_VOLTAGE_SAMPLE){
886 bat ->pSamples = pStart;
887 num = NUM_VOLTAGE_SAMPLE;
892 for (i = 0; i < num; i++){
893 value += bat->adc_samples[i];
895 bat->bat_voltage = value / num;
898 if(battery_test_flag == 0)
900 if(0 == bat->pdata->use_board_table){
902 if(bat->bat_voltage >= batt_table[2*BATT_NUM +5]+ 10)
903 bat->bat_voltage = batt_table[2*BATT_NUM +5] + 10;
904 else if(bat->bat_voltage <= batt_table[BATT_NUM +6] - 10)
905 bat->bat_voltage = batt_table[BATT_NUM +6] - 10;
908 if(bat->bat_voltage >= batt_table[BATT_NUM +5]+ 10)
909 bat->bat_voltage = batt_table[BATT_NUM +5] + 10;
910 else if(bat->bat_voltage <= batt_table[6] - 10)
911 bat->bat_voltage = batt_table[6] - 10;
914 rk_handle_ripple(bat, level);
917 }else if(battery_test_flag == 2){
919 if(batt_table[3] == 0){
920 if(bat->bat_voltage < 3400){
921 if((get_seconds() - gSecondsCnt) > 30){
922 gSecondsCnt = get_seconds();
923 if((gVoltageCnt - bat->bat_voltage) > 15){
924 strncpy(gDischargeFlag, "off" ,4);
926 gVoltageCnt = bat->bat_voltage;
931 if(bat->bat_voltage < 3400){
932 bat->bat_voltage = 3400;
936 if(bat->bat_voltage < 6800){
937 if((get_seconds() - gSecondsCnt) > 30){
938 gSecondsCnt = get_seconds();
939 if((gDoubleVoltageCnt - bat->bat_voltage) > 30){
940 strncpy(gDischargeFlag, "off" ,4);
942 gDoubleVoltageCnt =bat->bat_voltage;
945 if(bat->bat_voltage < 6800){
946 bat->bat_voltage = 6800;
952 static int rk30_adc_battery_voltage_to_capacity(struct rk30_adc_battery_data *bat, int BatVoltage)
959 if (bat->pdata->use_board_table)
960 p = bat->pdata->board_batt_table;
961 else if (bat->pdata->dts_batt_table)
962 p = bat->pdata->dts_batt_table;
967 if (1 == bat->charge_level){ //charge
968 if(0 == bat->start_voltage_status ){
969 if(BatVoltage >= (p[2*BATT_NUM +5])){
973 if(BatVoltage <= (p[BATT_NUM +6])){
977 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++){
979 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
981 capacity = (i-(BATT_NUM +6))*10 + ((BatVoltage - p[i]) * 10)/ (p[i+1]- p[i]);
990 DBG("start_voltage=%d,start_capacity =%d\n", bat->charge_start_voltage, bat->charge_start_capacity);
991 DBG("charge_down_proportion =%d,charge_up_proprotion=%d\n",bat ->charge_down_proportion,bat ->charge_up_proprotion);
992 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
993 if(((p[i]) <= bat->charge_start_voltage) && (bat->charge_start_voltage < (p[i+1])))
994 bat->voltage_to_local = i;
995 if(BatVoltage >= (p[2*BATT_NUM +5])){
999 if(BatVoltage <= (p[BATT_NUM +6])){
1003 if(BatVoltage <bat->charge_start_voltage){
1004 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
1005 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
1006 if( p[i+1] < bat->charge_start_voltage ){
1007 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);
1008 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]);
1012 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]);
1013 DBG("2<<<<<< %d capacity = %d BatVoltage =%d p[i] = %d,p[i+1] = %d \n", i,capacity,BatVoltage,p[i], p[i+1]);
1021 if(BatVoltage > bat->charge_start_voltage){
1022 for(i = BATT_NUM +6; i <2*BATT_NUM +5; i++)
1023 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
1024 if( p[i] > bat->charge_start_voltage ){
1025 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]);
1026 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]);
1029 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 );
1030 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]);
1037 if(BatVoltage == bat->charge_start_voltage)
1038 capacity = bat ->charge_start_capacity;
1048 if(BatVoltage >= (p[BATT_NUM +5])){
1052 if(BatVoltage <= (p[6])){
1056 for(i = 6; i < BATT_NUM +5; i++){
1057 if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
1058 capacity = (i-6)*10+ ((BatVoltage - p[i]) *10 )/ (p[i+1]- p[i]) ;
1069 DBG("real_voltage_to_capacity =%d\n" ,capacity);
1073 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1075 static void rk_usb_charger(struct rk30_adc_battery_data *bat)
1078 int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1079 int timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE;
1081 if((1 == bat ->charge_level)&&( 0 == bat ->start_voltage_status)){
1082 bat ->charge_start_voltage = bat ->bat_voltage;
1083 bat ->start_voltage_status = 1;
1084 bat ->charge_start_capacity = bat ->bat_capacity;
1085 if(bat ->charge_start_capacity%10 != 0){
1086 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1087 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1089 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10;
1090 bat ->charge_down_proportion = bat ->charge_start_capacity/10;
1096 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1098 if (capacity > bat->bat_capacity){
1099 if(capacity > bat->bat_capacity + 10 )
1100 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -10; //5s
1101 else if(capacity > bat->bat_capacity + 7 )
1102 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -5; //10s
1103 else if(capacity > bat->bat_capacity + 3 )
1104 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE - 2; // 13
1105 if (++(bat->gBatCapacityusbChargeCnt) >= timer_of_charge_sample){
1106 bat->gBatCapacityusbChargeCnt = 0;
1107 if (bat->bat_capacity < 99){
1108 bat->bat_capacity++;
1109 bat->bat_change = 1;
1112 bat->gBatCapacityChargeCnt = 0;
1113 bat ->gBatCapacityusbdisChargeCnt = 0;//get_suspend_state(void)
1114 }else //if(( get_suspend_state() != PM_SUSPEND_MEM)&&(capacity < bat->bat_capacity)){
1115 // if((gpio_get_value (bat->pdata->back_light_pin) == 1)&&(capacity < bat->bat_capacity)){
1116 if((capacity < bat->bat_capacity)){
1117 DBG("USB CHARGE DOWN\n");
1119 // if (capacity < bat->bat_capacity){
1121 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 40; // 13
1122 }else if(capacity < 20){
1123 if(capacity + 3 > bat->bat_capacity )
1124 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -5; //5s
1125 else if(capacity + 7 > bat->bat_capacity )
1126 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -10; //10s
1127 else if(capacity + 10> bat->bat_capacity )
1128 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -25; // 13
1130 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 35; // 13
1132 if(capacity + 3 > bat->bat_capacity )
1133 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -5; //5s
1134 else if(capacity + 7 > bat->bat_capacity )
1135 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE -10; //10s
1136 else if(capacity + 10> bat->bat_capacity )
1137 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 15; // 13
1139 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 20; // 13
1142 if (++(bat->gBatCapacityusbdisChargeCnt) >= timer_of_discharge_sample){
1143 bat->gBatCapacityusbdisChargeCnt = 0;
1144 if (bat->bat_capacity > 0){
1145 bat->bat_capacity-- ;
1146 bat->bat_change = 1;
1151 bat->gBatCapacityusbChargeCnt = 0;
1154 else //if(get_suspend_state() == PM_SUSPEND_MEM){
1155 //if(gpio_get_value (bat->pdata->back_light_pin) == 0){
1159 bat->gBatCapacityusbdisChargeCnt = 0;
1160 // (bat->gBatCapacityusbChargeCnt)++;
1161 if( is_charge_ok(bat) != INVALID_CHARGE_CHECK){
1162 if( is_charge_ok(bat) == CHARGE_IS_OK){
1164 if (++bat->gBatCapacityusbChargeCnt >= timer_of_charge_sample-30){
1165 bat->gBatCapacityusbChargeCnt = 0;
1166 if (bat->bat_capacity <= 99){
1167 bat->bat_capacity++;
1168 bat->bat_change = 1;
1172 if (capacity > bat->capacitytmp){
1173 bat->gBatCapacityChargeCnt = 0;
1176 if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
1177 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1179 if (bat->bat_capacity < 99){
1180 bat->bat_capacity++;
1181 bat->bat_change = 1;
1189 if (capacity > bat->capacitytmp){
1190 bat->gBatCapacityChargeCnt = 0;
1192 if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityusbChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
1193 bat->gBatCapacityusbChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1194 if (bat->bat_capacity <= 99){
1195 bat->bat_capacity++;
1196 bat->bat_change = 1;
1203 bat->capacitytmp = capacity;
1207 static void rk_ac_charger(struct rk30_adc_battery_data *bat)
1210 int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1212 if((1 == bat->charge_level)&&( 0 == bat->start_voltage_status)){
1213 bat->charge_start_voltage = bat->bat_voltage;
1214 bat->start_voltage_status = 1;
1215 bat->charge_start_capacity = bat->bat_capacity;
1216 if(bat ->charge_start_capacity%10 != 0){
1217 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1218 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1220 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10;
1221 bat ->charge_down_proportion = bat ->charge_start_capacity/10;
1226 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1227 if (capacity > bat->bat_capacity){
1228 if(capacity > bat->bat_capacity + 10 )
1229 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -10; //5s
1230 else if(capacity > bat->bat_capacity + 7 )
1231 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE -5; //10s
1232 else if(capacity > bat->bat_capacity + 3 )
1233 timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE - 2; // 13
1234 if (++(bat->gBatCapacityacChargeCnt) >= timer_of_charge_sample){
1235 bat->gBatCapacityacChargeCnt = 0;
1236 if (bat->bat_capacity < 99){
1237 bat->bat_capacity++;
1238 bat->bat_change = 1;
1241 bat->gBatCapacityChargeCnt = 0;
1244 bat->gBatCapacityacChargeCnt = 0;
1245 (bat->gBatCapacityChargeCnt)++;
1246 if( is_charge_ok(bat) != INVALID_CHARGE_CHECK){
1247 if( is_charge_ok(bat) == CHARGE_IS_OK){
1248 if (bat->gBatCapacityChargeCnt >= timer_of_charge_sample){
1249 bat->gBatCapacityChargeCnt = 0;
1250 if (bat->bat_capacity < 99){
1251 bat->bat_capacity++;
1252 bat->bat_change = 1;
1256 if (capacity > bat->capacitytmp){
1257 bat->gBatCapacityChargeCnt = 0;
1261 if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
1262 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1264 if (bat->bat_capacity < 99){
1265 bat->bat_capacity++;
1266 bat->bat_change = 1;
1273 if (capacity > bat->capacitytmp){
1274 bat->gBatCapacityChargeCnt = 0;
1278 if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
1279 bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
1281 if (bat->bat_capacity <= 99){
1282 bat->bat_capacity++;
1283 bat->bat_change = 1;
1291 bat->capacitytmp = capacity;
1293 static void rk_battery_charger(struct rk30_adc_battery_data *bat)
1297 int timer_of_discharge_sample = DISCHARGE_MIN_SECOND;
1299 capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1301 if (capacity < bat->bat_capacity){
1304 timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE - 40; // 13
1308 if(capacity + 3 > bat->bat_capacity )
1309 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -5; //5s
1310 else if(capacity + 7 > bat->bat_capacity )
1311 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -10; //10s
1312 else if(capacity + 10> bat->bat_capacity )
1313 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -25; // 13
1315 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 35; // 13
1317 if(capacity + 3 > bat->bat_capacity )
1318 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -5; //5s
1319 else if(capacity + 7 > bat->bat_capacity )
1320 timer_of_discharge_sample = DISCHARGE_MIN_SECOND -10; //10s
1321 else if(capacity + 10> bat->bat_capacity )
1322 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 15; // 13
1324 timer_of_discharge_sample = DISCHARGE_MIN_SECOND - 20; // 13
1327 if (++(bat->gBatCapacityDisChargeCnt) >= timer_of_discharge_sample){
1328 bat->gBatCapacityDisChargeCnt = 0;
1329 if (bat->bat_capacity > 0){
1330 bat->bat_capacity-- ;
1331 bat->bat_change = 1;
1336 bat->gBatCapacityDisChargeCnt = 0;
1338 bat->gBatCapacityChargeCnt = 0;
1339 bat->gBatCapacityusbdisChargeCnt=0 ;
1340 bat->gBatCapacityusbChargeCnt =0;
1341 bat->gBatCapacityacChargeCnt = 0;
1342 bat->start_voltage_status = 0;
1344 bat->capacitytmp = capacity;
1350 static void rk30_adc_battery_capacity_samples(struct rk30_adc_battery_data *bat)
1352 // int capacity = 0;
1353 // int timer_of_charge_sample = NUM_CHARGE_MIN_SAMPLE;
1354 // int timer_of_discharge_sample = NUM_CHARGE_MIN_SAMPLE;
1356 if (bat->bat_status_cnt < NUM_VOLTAGE_SAMPLE) {
1357 bat->gBatCapacityDisChargeCnt = 0;
1358 bat->gBatCapacityChargeCnt = 0;
1359 bat->gBatCapacityacChargeCnt = 0;
1363 if(1 == bat->charge_level){
1364 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1365 if(1 == bat->usb_charging)
1366 rk_usb_charger(bat);
1373 rk_battery_charger(bat);
1379 //static int poweron_check = 0;
1380 static void rk30_adc_battery_poweron_capacity_check(struct rk30_adc_battery_data *bat)
1383 int new_capacity, old_capacity;
1386 new_capacity = bat ->bat_capacity;
1389 g_old_cap = g_old_cap + g_uboot_incre;
1392 old_capacity = g_old_cap; // rk30_adc_battery_load_capacity();
1393 if( old_capacity != -1 ){
1398 printk("func:%s; line:%d; old_capacity = %d; new_capacity = %d; g_uboot_incre = %d\n", __func__, __LINE__, old_capacity, new_capacity,g_uboot_incre);
1400 if ((old_capacity < 0) || (old_capacity > 100)){
1401 old_capacity = new_capacity;
1404 if (bat ->bat_status == POWER_SUPPLY_STATUS_FULL){
1405 if (new_capacity > 80){
1406 bat ->bat_capacity = 100;
1409 else if (bat ->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
1411 bat->bat_capacity = (old_capacity < 10) ? (old_capacity + 2) : old_capacity;
1413 bat ->bat_capacity = old_capacity;
1414 if(bat->bat_capacity == 100)
1415 bat->bat_capacity = 99;
1416 if(bat->bat_capacity == 0)
1417 bat->bat_capacity =1;
1419 DBG("oldcapacity %d,newcapacity %d,capacity %d\n", old_capacity
1420 , new_capacity, bat->bat_capacity);
1422 bat ->bat_change = 1;
1424 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1425 #define to_battery_usb_device_info(x) container_of((x), \
1426 struct rk30_adc_battery_data, usb);
1428 static int rk30_adc_battery_get_usb_property(struct power_supply *psy,
1429 enum power_supply_property psp,
1430 union power_supply_propval *val)
1432 struct rk30_adc_battery_data *bat= to_battery_usb_device_info(psy);
1435 case POWER_SUPPLY_PROP_ONLINE:
1436 if (psy->type == POWER_SUPPLY_TYPE_USB){
1437 val->intval = bat ->usb_charging;
1438 if (strstr(saved_command_line,"charger") == NULL){
1439 if( 1 == bat->charge_full_flag)
1453 static enum power_supply_property rk30_adc_battery_usb_props[] = {
1455 POWER_SUPPLY_PROP_ONLINE,
1458 static struct power_supply rk30_usb_supply =
1461 .type = POWER_SUPPLY_TYPE_USB,
1463 .get_property = rk30_adc_battery_get_usb_property,
1465 .properties = rk30_adc_battery_usb_props,
1466 .num_properties = ARRAY_SIZE(rk30_adc_battery_usb_props),
1469 static irqreturn_t rk30_adc_battery_dc_wakeup(int irq, void *dev_id)
1471 disable_irq_nosync(irq);
1472 queue_work(gBatteryData->wq, &gBatteryData->dcwakeup_work);
1476 #define to_battery_ac_device_info(x) container_of((x), \
1477 struct rk30_adc_battery_data, ac);
1479 static int rk30_adc_battery_get_ac_property(struct power_supply *psy,
1480 enum power_supply_property psp,
1481 union power_supply_propval *val)
1485 struct rk30_adc_battery_data *bat = to_battery_ac_device_info(psy);
1488 case POWER_SUPPLY_PROP_ONLINE:
1489 if (psy->type == POWER_SUPPLY_TYPE_MAINS){
1490 val->intval = bat ->ac_charging;
1491 if (strstr(saved_command_line,"charger") == NULL ){
1492 if( 1 == bat->charge_full_flag)
1506 static enum power_supply_property rk30_adc_battery_ac_props[] =
1508 POWER_SUPPLY_PROP_ONLINE,
1511 static struct power_supply rk30_ac_supply =
1514 .type = POWER_SUPPLY_TYPE_MAINS,
1516 .get_property = rk30_adc_battery_get_ac_property,
1518 .properties = rk30_adc_battery_ac_props,
1519 .num_properties = ARRAY_SIZE(rk30_adc_battery_ac_props),
1521 static void rk30_adc_battery_dcdet_delaywork(struct work_struct *work)
1525 struct rk30_adc_battery_platform_data *pdata;
1528 struct rk30_adc_battery_data *bat = container_of((work), \
1529 struct rk30_adc_battery_data, dcwakeup_work);
1532 irq = gpio_to_irq(pdata->dc_det_pin);
1533 free_irq(irq, NULL);
1535 irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
1536 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);// reinitialize the DC irq
1538 free_irq(irq, NULL);
1541 power_supply_changed(&bat ->ac);
1542 rk_send_wakeup_key();
1544 bat ->bat_status_cnt = 0; //the state of battery is change
1549 static int rk30_adc_battery_get_status(struct rk30_adc_battery_data *bat)
1551 return (bat->bat_status);
1554 static int rk30_adc_battery_get_health(struct rk30_adc_battery_data *bat)
1556 return POWER_SUPPLY_HEALTH_GOOD;
1559 static int rk30_adc_battery_get_present(struct rk30_adc_battery_data *bat)
1561 return (bat->bat_voltage < BATT_MAX_VOL_VALUE) ? 0 : 1;
1564 static int rk30_adc_battery_get_voltage(struct rk30_adc_battery_data *bat)
1566 return (bat->bat_voltage );
1569 static int rk30_adc_battery_get_capacity(struct rk30_adc_battery_data *bat)
1571 return (bat->bat_capacity);
1574 static int rk30_adc_battery_get_property(struct power_supply *psy,
1575 enum power_supply_property psp,
1576 union power_supply_propval *val)
1580 struct rk30_adc_battery_data *bat = container_of((psy), \
1581 struct rk30_adc_battery_data, bat);
1583 case POWER_SUPPLY_PROP_STATUS:
1584 val->intval = rk30_adc_battery_get_status(bat);
1585 DBG("gBatStatus=%d\n",val->intval);
1587 case POWER_SUPPLY_PROP_HEALTH:
1588 val->intval = rk30_adc_battery_get_health(bat);
1589 DBG("gBatHealth=%d\n",val->intval);
1591 case POWER_SUPPLY_PROP_PRESENT:
1592 val->intval = rk30_adc_battery_get_present(bat);
1593 DBG("gBatPresent=%d\n",val->intval);
1595 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
1596 // val ->intval = rk30_adc_battery_get_voltage(bat);
1597 voltage = rk30_adc_battery_get_voltage(bat);
1598 val->intval = voltage*1000;
1599 DBG("gBatVoltage=%d\n",val->intval);
1601 case POWER_SUPPLY_PROP_CAPACITY:
1602 if(battery_test_flag == 2)
1605 val->intval = rk30_adc_battery_get_capacity(bat);
1606 DBG("gBatCapacity=%d%%\n",val->intval);
1608 case POWER_SUPPLY_PROP_TECHNOLOGY:
1609 val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
1611 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
1612 val->intval = BATT_MAX_VOL_VALUE;
1614 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
1615 val->intval = BATT_ZERO_VOL_VALUE;
1625 static enum power_supply_property rk30_adc_battery_props[] = {
1627 POWER_SUPPLY_PROP_STATUS,
1628 POWER_SUPPLY_PROP_HEALTH,
1629 POWER_SUPPLY_PROP_PRESENT,
1630 POWER_SUPPLY_PROP_VOLTAGE_NOW,
1631 POWER_SUPPLY_PROP_TECHNOLOGY,
1632 POWER_SUPPLY_PROP_CAPACITY,
1633 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
1634 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
1637 static struct power_supply rk30_battery_supply =
1640 .type = POWER_SUPPLY_TYPE_BATTERY,
1642 .get_property = rk30_adc_battery_get_property,
1644 .properties = rk30_adc_battery_props,
1645 .num_properties = ARRAY_SIZE(rk30_adc_battery_props),
1649 static void rk30_adc_battery_resume_check(struct rk30_adc_battery_data *bat)
1653 int new_capacity, old_capacity;
1654 // struct rk30_adc_battery_data *bat = gBatteryData;
1656 bat ->old_charge_level = -1;
1657 bat ->pSamples = bat->adc_samples;
1659 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1661 level = oldlevel = rk_battery_get_status(bat);//rk30_adc_battery_status_samples(bat);//init charge status
1663 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++) { //0.3 s
1666 rk30_adc_battery_voltage_samples(bat); //get voltage
1667 level = rk_battery_get_status(bat);// rk30_adc_battery_status_samples(bat); //check charge status
1668 if (oldlevel != level){
1669 oldlevel = level; //if charge status changed, reset sample
1673 new_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
1674 old_capacity =bat-> suspend_capacity;
1676 //if (bat->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
1679 bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity;
1682 bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; // aviod the value of capacity increase dicharge
1685 if (batt_gpio_is_valid(bat->pdata->batt_low_pin)) {
1686 if (gpio_get_value(bat ->pdata->batt_low_pin) == bat ->pdata->batt_low_level)
1687 bat->bat_capacity = 0;
1693 static int rk30_adc_battery_suspend(struct platform_device *dev, pm_message_t state)
1696 struct rk30_adc_battery_data *data = platform_get_drvdata(dev);
1698 data ->suspend_capacity = data->bat_capacity;
1699 data ->suspend_time = get_seconds();
1700 cancel_delayed_work(&data ->delay_work);
1702 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
1704 irq = gpio_to_irq(data ->pdata->batt_low_pin);
1706 enable_irq_wake(irq);
1712 static int rk30_adc_battery_resume(struct platform_device *dev)
1715 struct rk30_adc_battery_data *data = platform_get_drvdata(dev);
1716 if( data->bat_capacity < 10 ){
1717 wake_lock_timeout(&batt_wake_lock_detect_lowpower,15*HZ);
1718 data->bat_change = 1;
1720 data ->resume_time = get_seconds();
1721 data ->resume = true;
1722 queue_delayed_work(data->wq, &data ->delay_work, msecs_to_jiffies(100));
1723 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
1725 irq = gpio_to_irq(data ->pdata ->batt_low_pin);
1726 disable_irq_wake(irq);
1732 #define rk30_adc_battery_suspend NULL
1733 #define rk30_adc_battery_resume NULL
1737 unsigned long AdcTestCnt = 0;
1738 static void rk30_adc_battery_timer_work(struct work_struct *work)
1740 struct rk30_adc_battery_data *bat = container_of((work), struct
1741 rk30_adc_battery_data, delay_work.work);
1745 // if( (bat->resume_time - bat->suspend_time) >= 1800 )
1746 rk30_adc_battery_resume_check(bat);
1748 //bat->bat_capacity = bat->suspend_capacity;
1749 bat ->resume = false;
1750 bat ->bat_change =1;
1753 bat->stop_check = 1;
1754 if( 1 == bat ->lower_power_flag ){
1755 bat ->bat_capacity = 0;
1756 bat ->bat_change =1;
1758 if (bat ->poweron_check){
1759 bat ->poweron_check = 0;
1760 rk30_adc_battery_poweron_capacity_check(bat);
1763 bat ->charge_level = rk_battery_get_status(bat);
1764 DBG("bat ->charge_level =%d\n", bat ->charge_level);
1765 rk30_adc_battery_status_samples(bat);
1766 rk30_adc_battery_voltage_samples(bat);
1767 rk30_adc_battery_capacity_samples(bat);
1769 if( 0 == bat ->pdata ->charging_sleep){
1770 if( 1 == bat->charge_level){ // charge
1771 if(0 == bat->status_lock ){
1772 wake_lock(&batt_wake_lock); //lock
1773 bat ->status_lock = 1;
1777 if(1 == bat ->status_lock ){
1778 wake_unlock(&batt_wake_lock); //unlock
1779 bat ->status_lock = 0;
1785 /*update battery parameter after adc and capacity has been changed*/
1786 if(bat ->bat_change){
1787 bat ->bat_change= 0;
1788 if (strstr(saved_command_line,"charger") == NULL){ //when low charging-current,not in charging-displays
1789 if(0 == bat ->bat_capacity){
1790 bat ->ac_charging = 0;
1791 bat ->usb_charging = 0;
1795 // rk30_adc_battery_put_capacity(bat ->bat_capacity);
1796 power_supply_changed(&bat ->bat);
1797 power_supply_changed(&bat ->ac);
1798 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1799 power_supply_changed(&bat ->usb);
1804 //if (rk30_battery_dbg_level){
1805 if (++AdcTestCnt >= 2)
1809 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",
1810 bat ->bat_status, bat ->adc_val, rk_adc_voltage(bat, bat ->adc_val),
1811 bat ->bat_voltage, bat ->bat_capacity, bat ->capacitytmp, bat ->gBatCapacityDisChargeCnt, bat ->gBatCapacityChargeCnt,
1812 bat ->gBatCapacityacChargeCnt, bat ->gBatCapacityusbChargeCnt, bat ->gBatCapacityusbdisChargeCnt);
1816 queue_delayed_work(bat ->wq, &bat ->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
1821 static int rk30_adc_battery_io_init(struct rk30_adc_battery_platform_data *pdata)
1825 if (batt_gpio_is_valid(pdata->dc_det_pin)) {
1826 ret = gpio_request(pdata->dc_det_pin, NULL);
1828 pr_info("failed to request dc_det gpio\n");
1832 ret = gpio_direction_input(pdata->dc_det_pin);
1834 pr_info("failed to set gpio dc_det input\n");
1840 if (batt_gpio_is_valid(pdata->charge_ok_pin)) {
1841 ret = gpio_request(pdata->charge_ok_pin, NULL);
1843 pr_err("failed to request charge_ok gpio\n");
1847 ret = gpio_direction_input(pdata->charge_ok_pin);
1849 pr_err("failed to set gpio charge_ok input\n");
1854 if (batt_gpio_is_valid(pdata->batt_low_pin)) {
1855 ret = gpio_request(pdata->batt_low_pin, NULL);
1857 pr_err("failed to request batt_low_pin gpio\n");
1861 ret = gpio_direction_input(pdata->batt_low_pin);
1863 pr_err("failed to set gpio batt_low_pin input\n");
1873 extern void kernel_power_off(void);
1874 int get_battery_status(void)
1876 return system_lowerpower;
1878 static int rk_adc_battery_poweron_status(struct rk30_adc_battery_data *bat)
1881 #if defined CONFIG_BATTERY_RK30_USB_CHARGE
1885 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
1887 if (get_ac_status(bat) ){
1888 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1889 bat -> ac_charging = 1;
1890 if (is_charge_ok(bat) == 1){
1891 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1892 bat->bat_capacity = 100;
1894 power_supply_changed(&bat ->ac);
1897 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1898 otg_status = dwc_otg_check_dpdm();
1899 if( 0 != otg_status ){
1900 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1901 if (is_charge_ok(bat) == 1){
1902 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1903 bat->bat_capacity = 100;
1907 if(otg_status == 1){
1908 bat->usb_charging = 1;
1909 if(bat -> pdata ->control_usb_charging)
1910 bat -> pdata ->control_usb_charging(0);
1911 }else if(otg_status == 2){
1912 bat->usb_charging = 0;
1913 bat -> ac_charging = 1;
1914 if(bat -> pdata ->control_usb_charging)
1915 bat -> pdata ->control_usb_charging(1);
1917 bat->usb_charging = 0;
1919 printk("charge_status = %d\n",otg_status);
1921 power_supply_changed(&bat ->ac);
1922 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1923 power_supply_changed(&bat ->usb);
1925 if((bat -> ac_charging == 1)||(bat->usb_charging == 1)){
1926 bat ->old_charge_level =1;
1927 bat->charge_level = 1;
1930 bat ->old_charge_level =0;
1931 bat->charge_level = 0;
1938 static void rk30_adc_battery_check(struct rk30_adc_battery_data *bat)
1942 // struct rk30_adc_battery_platform_data *pdata = bat->pdata;
1943 int check_data[NUM_VOLTAGE_SAMPLE];
1944 //bat ->old_charge_level
1945 // pSamples = bat->adc_samples;
1948 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1950 DBG("first_adc_value is %d\n", bat->adc_val);
1951 level = oldlevel = rk_adc_battery_poweron_status(bat);// rk30_adc_battery_status_samples(bat);//init charge status
1953 for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
1955 rk30_adc_battery_voltage_samples(bat); //get voltage
1956 //level = rk30_adc_battery_status_samples(bat); //check charge status
1958 level = rk_adc_battery_poweron_status(bat);
1960 if (oldlevel != level){
1961 oldlevel = level; //if charge status changed, reset sample
1966 for(i=0; i< NUM_VOLTAGE_SAMPLE; i++){
1968 check_data[i] = bat->adc_val;
1970 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
1971 bat->adc_value += check_data[i];
1973 bat->adc_value /= NUM_VOLTAGE_SAMPLE;
1975 bat->bat_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage); //init bat_capacity
1976 bat->capacitytmp = bat->bat_capacity;
1977 level = rk_adc_battery_poweron_status(bat);
1978 if((1 == level)&&(0 == bat->start_voltage_status )){
1979 bat->charge_start_voltage = bat->bat_voltage;
1980 bat->start_voltage_status = 1;
1981 bat->charge_start_capacity = bat->bat_capacity;
1982 bat ->charge_up_proprotion = (100 - bat ->charge_start_capacity)/10+1;
1983 bat ->charge_down_proportion = bat ->charge_start_capacity/10+1;
1986 if (get_ac_status(bat) ){
1987 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1988 bat -> ac_charging = 1;
1989 if (is_charge_ok(bat) == 1){
1990 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1991 bat->bat_capacity = 100;
1994 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
1995 if( 0 != dwc_otg_check_dpdm() ){
1996 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
1997 if (is_charge_ok(bat) == 1){
1998 bat->bat_status = POWER_SUPPLY_STATUS_FULL;
1999 bat->bat_capacity = 100;
2003 if(dwc_otg_check_dpdm() == 1){
2004 bat->usb_charging = 1;
2005 if(bat -> pdata ->control_usb_charging)
2006 bat -> pdata ->control_usb_charging(0);
2007 }else if(dwc_otg_check_dpdm() == 2){
2008 bat->usb_charging = 0;
2009 bat -> ac_charging = 1;
2010 if(bat -> pdata ->control_usb_charging)
2011 bat -> pdata ->control_usb_charging(1);
2013 bat->usb_charging = 0;
2016 power_supply_changed(&bat ->ac);
2017 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
2018 power_supply_changed(&bat ->usb);
2020 if((bat -> ac_charging == 1)||(bat->usb_charging == 1)){
2021 bat ->old_charge_level =1;
2022 bat->charge_level = 1;
2027 if (bat->bat_capacity == 0) {
2028 bat->bat_capacity = 1;
2029 system_lowerpower = 1;
2033 if(0 !=bat ->pdata->low_voltage_protection ){
2034 if (bat->bat_voltage <= bat->pdata->low_voltage_protection) {
2035 system_lowerpower = 1;
2036 printk("protection lower power .....\n");
2039 if (bat->bat_voltage <= BATT_ZERO_VOL_VALUE) {
2040 system_lowerpower = 1;
2041 pr_info("lower power bat->bat_voltage = %d\n"
2042 , bat->bat_voltage);
2047 if ((bat->bat_voltage <= BATT_ZERO_VOL_VALUE)&&(bat->bat_status != POWER_SUPPLY_STATUS_CHARGING)){
2054 static void rk30_adc_battery_lowerpower_delaywork(struct work_struct *work)
2058 struct rk30_adc_battery_data *bat = container_of((work), \
2059 struct rk30_adc_battery_data, lowerpower_work);
2061 if (batt_gpio_is_valid(bat->pdata->batt_low_pin)) {
2062 irq = gpio_to_irq(bat ->pdata ->batt_low_pin);
2066 printk("lowerpower\n");
2071 static irqreturn_t rk30_adc_battery_low_wakeup(int irq,void *dev_id)
2073 queue_work(gBatteryData->wq, &gBatteryData->lowerpower_work);
2076 static void rk_lowerpower_check(struct rk30_adc_battery_data *bat)
2080 int check_data[NUM_VOLTAGE_SAMPLE];
2082 for(i=0; i< NUM_VOLTAGE_SAMPLE; i++){
2084 bat->adc_val = rk_adc_battery_iio_read(bat->pdata);
2085 check_data[i] = bat->adc_val;
2087 adc_val += check_data[i];
2089 adc_val /=NUM_VOLTAGE_SAMPLE;
2091 DBG(">>>>>>>>>>>one>>>%d, two<<<<<%d<<<<\n",bat->adc_value,adc_val);
2092 DBG(">>>>>>>>>>>firset-value>>>%d, second-value<<<<<%d<<<<\n",rk_adc_voltage(bat, bat->adc_value),rk_adc_voltage(bat, adc_val));
2094 if((adc_val >= bat->adc_value+5) &&(bat->bat_status == POWER_SUPPLY_STATUS_NOT_CHARGING ) )//
2096 printk("%d,%d\n",adc_val,bat->adc_value);
2097 printk("lower-power shutdown");
2102 static void rk_adc_battery_check_work(struct work_struct *work)
2104 struct rk30_adc_battery_data *bat =
2105 container_of((work), struct
2106 rk30_adc_battery_data, check_work.work);
2108 if(1 == get_ac_status(bat)){
2109 bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
2110 bat -> ac_charging = 1;
2113 power_supply_changed(&bat ->ac);
2114 if(bat->stop_check != 1)
2115 queue_delayed_work(bat ->wq, &bat ->check_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2118 static void poweron_lowerpoer_handle(struct rk30_adc_battery_data *bat)
2120 #ifdef CONFIG_LOGO_LOWERPOWER_WARNING
2121 if((1 == get_battery_status())&&(bat->bat_status == POWER_SUPPLY_STATUS_NOT_CHARGING )){
2128 static int battery_notifier_call(struct notifier_block *nb,
2129 unsigned long event, void *data)
2131 struct rk30_adc_battery_data *bat=
2132 container_of(nb, struct rk30_adc_battery_data, battery_nb);
2136 rk_lowerpower_check(bat);
2140 poweron_lowerpoer_handle(bat);
2149 static int rk31_adcbat_parse_dt(struct platform_device *pdev, struct
2150 rk30_adc_battery_platform_data *data)
2152 struct device_node *node = pdev->dev.of_node;
2153 enum of_gpio_flags flags;
2154 struct property *prop;
2161 struct iio_channel *channels;
2164 channels = iio_channel_get_all(&pdev->dev);
2165 if (IS_ERR(channels))
2166 pr_err("get adc channels fails\n");
2167 while (channels[num].indio_dev)
2169 data->chan = &channels[0];
2171 data->ref_voltage_chan = &channels[1];
2172 ret = of_property_read_u32(node, "auto_calibration", &value);
2174 pr_info("%s:unsupport auto_calibration\n", __func__);
2177 data->auto_calibration = value;
2179 ret = of_property_read_u32(node, "ref_voltage", &value);
2181 pr_info("%s:unsupport ref_voltage\n", __func__);
2184 data->reference_voltage = value;
2186 /* determine the number of config info */
2187 prop = of_find_property(node, "bat_table", &length);
2191 length /= sizeof(u32);
2194 size = (sizeof(*data->dts_batt_table)) * length;
2195 data->dts_batt_table =
2196 devm_kzalloc(&(pdev->dev), size, GFP_KERNEL);
2197 if (!data->dts_batt_table)
2200 ret = of_property_read_u32_array(node
2201 , "bat_table", data->dts_batt_table, length);
2206 for (i = 4; i < length; i++) {
2207 batt_table[i] = data->dts_batt_table[i];
2209 pr_info("data->dts_batt_table[ %d ] %d %d\n", i
2210 , data->dts_batt_table[i], batt_table[i]);
2212 data->dc_det_pin = of_get_named_gpio_flags(node
2213 , "dc_det_gpio", 0, &flags);
2214 if (data->dc_det_pin == -EPROBE_DEFER)
2215 pr_info("%s dc_det_gpio error\n", __func__);
2217 if (batt_gpio_is_valid(data->dc_det_pin))
2218 data->dc_det_level = (flags & OF_GPIO_ACTIVE_LOW)
2219 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2221 data->batt_low_pin = of_get_named_gpio_flags(node
2222 , "bat_low_gpio", 0, &flags);
2223 if (data->batt_low_pin == -EPROBE_DEFER)
2224 pr_info("%s bat_low_gpio error\n", __func__);
2226 if (batt_gpio_is_valid(data->batt_low_pin))
2227 data->batt_low_level = (flags & OF_GPIO_ACTIVE_LOW)
2228 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2230 data->charge_ok_pin = of_get_named_gpio_flags(node
2231 , "chg_ok_gpio", 0, &flags);
2232 if (data->charge_ok_pin == -EPROBE_DEFER)
2233 pr_info("%s chg_ok_gpio error\n", __func__);
2235 if (batt_gpio_is_valid(data->charge_ok_pin))
2236 data->charge_ok_level = (flags & OF_GPIO_ACTIVE_LOW)
2237 ? RK30_GPIO_LOW : RK30_GPIO_HIGH;
2239 ret = of_property_read_u32(node, "is_dc_charge", &value);
2241 pr_info("%s:hardware unsupport dc charge\n", __func__);
2244 data->is_dc_charge = value;
2246 ret = of_property_read_u32(node, "is_usb_charge"
2249 pr_err("%s:hardware unsupport usb charge\n", __func__);
2252 data->is_usb_charge = value;
2254 pr_info("rk30 battery:support %s %s charger\n",
2255 data->is_dc_charge ? "DC" : ""
2256 , data->is_usb_charge ? "USB" : "");
2261 static int rk31_adcbat_parse_dt(struct platform_device
2262 *dev, struct rk30_adc_battery_platform_data *data)
2269 static int rk30_adc_battery_probe(struct platform_device *pdev)
2275 struct rk30_adc_battery_data *data;
2276 struct rk30_adc_battery_platform_data *pdata;
2277 #ifdef CONFIG_MACH_RK_FAC
2279 for(i=0;i<BATT_NUM;i++)
2281 batt_table[6+i]=pdata->chargeArray[i];
2282 batt_table[BATT_NUM+6+i]=pdata->chargeArray[i];
2285 gSecondsCnt = get_seconds();
2286 /*data = kzalloc(sizeof(*data), GFP_KERNEL);*/
2287 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
2291 /*pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);*/
2292 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
2296 memset(data, 0, sizeof(struct rk30_adc_battery_data));
2297 gBatteryData = data;
2298 platform_set_drvdata(pdev, data);
2300 data->pdata = pdata;
2301 data->status_lock = 0;
2302 data->old_charge_level = -1;
2303 data->capacitytmp = 0;
2304 data->suspend_capacity = 0;
2305 data->ac_charging = 0;
2306 data->usb_charging = 0;
2307 data->full_times = 0;
2308 data->gBatCapacityDisChargeCnt =0;
2309 data->gBatCapacityChargeCnt=0;
2310 data->gBatCapacityusbdisChargeCnt=0 ;
2311 data->gBatCapacityusbChargeCnt =0;
2312 data->gBatCapacityacChargeCnt = 0;
2313 data->charge_source_now = 0;
2314 data->charge_soure_old = 0;
2315 data->start_voltage_status = 0;
2316 data->charge_full_flag =0;
2317 data->pSamples = data->adc_samples;
2318 data->lower_power_flag = 0;
2319 data->capacitytmp = 0;
2320 data->time_to_full = 0;
2321 data->stop_check = 0;
2322 data->voltage_to_local = 0;
2324 data->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
2325 wake_lock_init(&batt_wake_lock, WAKE_LOCK_SUSPEND, "batt_lock");
2326 wake_lock_init(&charge_display_lock, WAKE_LOCK_SUSPEND, "charge_display_lock"); //charge_display_lock
2327 wake_lock_init(&batt_wake_lock_detect_lowpower
2328 , WAKE_LOCK_SUSPEND, "lowpower_lock");
2330 ret = rk31_adcbat_parse_dt(pdev, data->pdata);
2331 /*ret = rk31_adcbat_parse_dt(pdev, pdata);*/
2333 pr_err("failed to find rk30 adc battery platform data\n");
2337 ret = rk30_adc_battery_io_init(data->pdata);
2343 memset(data->adc_samples, 0, sizeof(int)*(NUM_VOLTAGE_SAMPLE + 2));
2345 //register adc for battery sample
2346 data->wq = create_singlethread_workqueue("adc_battd");
2348 /*data->client = client;*/
2349 data->adc_val = rk_adc_battery_iio_read(data->pdata);
2351 data ->bat = rk30_battery_supply;
2352 ret = power_supply_register(&pdev->dev,&data ->bat);
2355 printk(KERN_INFO "fail to battery power_supply_register\n");
2356 goto err_battery_failed;
2358 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
2359 data ->usb = rk30_usb_supply;
2360 ret = power_supply_register(&pdev->dev, &data ->usb);
2363 printk(KERN_INFO "fail to usb power_supply_register\n");
2364 goto err_usb_failed;
2367 data ->ac = rk30_ac_supply;
2368 ret = power_supply_register(&pdev->dev, &data ->ac);
2371 printk(KERN_INFO "fail to ac power_supply_register\n");
2375 //init dc dectet irq & delay work
2376 if (batt_gpio_is_valid(data->pdata->dc_det_pin)) {
2377 INIT_WORK(&data->dcwakeup_work, rk30_adc_battery_dcdet_delaywork);
2379 irq = gpio_to_irq(data->pdata->dc_det_pin);
2380 irq_flag = gpio_get_value(data->pdata->dc_det_pin)
2381 ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
2382 ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);
2385 printk("failed to request dc det irq\n");
2386 goto err_dcirq_failed;
2388 enable_irq_wake(irq);
2393 ret = device_create_file(&pdev->dev,&dev_attr_batparam);
2396 printk(KERN_ERR "failed to create bat param file\n");
2397 goto err_battery_failed;
2400 ret = create_sysfs_interfaces(&pdev->dev);
2405 "device rk30_adc_batterry sysfs register failed\n");
2409 //Power on Battery detect
2410 rk30_adc_battery_check(data);
2412 // data->wq = create_singlethread_workqueue("adc_battd");
2413 INIT_DELAYED_WORK(&data->delay_work, rk30_adc_battery_timer_work);
2415 //if (1 == data->pdata->save_capacity) {
2417 queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS*10));
2418 data ->poweron_check = 1;
2420 queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2421 data ->poweron_check = 0;
2423 INIT_DELAYED_WORK(&data->check_work, rk_adc_battery_check_work);
2424 queue_delayed_work(data ->wq, &data ->check_work, msecs_to_jiffies(TIMER_MS_COUNTS));
2425 if (batt_gpio_is_valid(data->pdata->batt_low_pin)) {
2426 if (0 == gpio_get_value(data->pdata->batt_low_pin)) {
2428 if (gpio_get_value(data->pdata->batt_low_pin) == 0) {
2429 printk("lower power\n");
2434 INIT_WORK(&data->lowerpower_work, rk30_adc_battery_lowerpower_delaywork);
2435 irq = gpio_to_irq(data->pdata->batt_low_pin);
2436 ret = request_irq(irq, rk30_adc_battery_low_wakeup, IRQF_TRIGGER_LOW, "batt_low_irq", NULL);
2439 printk("failed to request batt_low_irq irq\n");
2440 goto err_lowpowerirq_failed;
2445 data->battery_nb.notifier_call = battery_notifier_call;
2446 register_adc_battery_notifier(&data->battery_nb);
2448 printk(KERN_INFO "rk30_adc_battery: driver initialized\n");
2452 power_supply_unregister(&data ->usb);
2454 power_supply_unregister(&data ->ac);
2458 power_supply_unregister(&data ->bat);
2461 if (batt_gpio_is_valid(data->pdata->dc_det_pin))
2462 free_irq(gpio_to_irq(data->pdata->dc_det_pin), data);
2464 err_lowpowerirq_failed:
2465 if (batt_gpio_is_valid(data->pdata->batt_low_pin))
2466 free_irq(gpio_to_irq(data->pdata->batt_low_pin), data);
2470 printk("rk30_adc_battery: error!\n");
2475 static int rk30_adc_battery_remove(struct platform_device *pdev)
2477 struct rk30_adc_battery_data *data = platform_get_drvdata(pdev);
2478 struct rk30_adc_battery_platform_data *pdata = data->pdata;
2480 cancel_delayed_work_sync(&data->delay_work);
2481 if (batt_gpio_is_valid(pdata->dc_det_pin))
2482 cancel_work_sync(&data->dcwakeup_work);
2483 cancel_delayed_work_sync(&data->check_work);
2485 if (batt_gpio_is_valid(pdata->batt_low_pin))
2486 cancel_work_sync(&data->lowerpower_work);
2487 #if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
2488 power_supply_unregister(&data ->usb);
2490 power_supply_unregister(&data ->ac);
2491 power_supply_unregister(&data ->bat);
2492 if (batt_gpio_is_valid(pdata->dc_det_pin))
2493 free_irq(gpio_to_irq(pdata->dc_det_pin), data);
2499 static const struct of_device_id rk30_adc_battery_dt_match[] = {
2500 { .compatible = "rk30-adc-battery",},
2503 MODULE_DEVICE_TABLE(of, rk30_adc_battery_dt_match);
2507 static struct platform_driver rk30_adc_battery_driver = {
2508 .probe = rk30_adc_battery_probe,
2509 .remove = rk30_adc_battery_remove,
2510 .suspend = rk30_adc_battery_suspend,
2511 .resume = rk30_adc_battery_resume,
2513 .name = "rk30-adc-battery",
2514 .owner = THIS_MODULE,
2515 .of_match_table = of_match_ptr(rk30_adc_battery_dt_match),
2519 static int __init rk30_adc_battery_init(void)
2521 return platform_driver_register(&rk30_adc_battery_driver);
2524 static void __exit rk30_adc_battery_exit(void)
2526 platform_driver_unregister(&rk30_adc_battery_driver);
2528 //module_init(rk30_adc_battery_init);//module_init(rk30_adc_battery_init);//
2529 subsys_initcall(rk30_adc_battery_init);
2530 //fs_initcall(rk30_adc_battery_init);
2531 module_exit(rk30_adc_battery_exit);
2535 MODULE_DESCRIPTION("Battery detect driver for the rk30");
2536 MODULE_AUTHOR("luowei lw@rock-chips.com");
2537 MODULE_LICENSE("GPL");