--- /dev/null
+/* drivers/power/rk30_adc_battery.c
+ *
+ * battery detect driver for the rk30
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/regulator/consumer.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/gpio.h>
+#include <linux/adc.h>
+#include <mach/iomux.h>
+#include <mach/board.h>
+#include <linux/delay.h>
+#include <linux/ktime.h>
+#include <linux/slab.h>
+#include <linux/syscalls.h>
+#include <linux/fs.h>
+#include <linux/wakelock.h>
+
+#if 0
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+static int rk30_battery_dbg_level = 1;
+module_param_named(dbg_level, rk30_battery_dbg_level, int, 0644);
+#define pr_bat( args...) \
+ do { \
+ if (rk30_battery_dbg_level) { \
+ pr_info(args); \
+ } \
+ } while (0)
+
+
+/*******************ÒÔϲÎÊý¿ÉÒÔÐÞ¸Ä******************************/
+#define TIMER_MS_COUNTS 1000 //¶¨Ê±Æ÷µÄ³¤¶Èms
+//ÒÔϲÎÊýÐèÒª¸ù¾Ýʵ¼Ê²âÊÔµ÷Õû
+#define SLOPE_SECOND_COUNTS 15 //ͳ¼ÆµçѹбÂʵÄʱ¼ä¼ä¸ôs
+#define DISCHARGE_MIN_SECOND 45 //×î¿ì·Åµçµç1%ʱ¼ä
+#define CHARGE_MIN_SECOND 45 //×î¿ì³äµçµç1%ʱ¼ä
+#define CHARGE_MID_SECOND 90 //ÆÕͨ³äµçµç1%ʱ¼ä
+#define CHARGE_MAX_SECOND 250 //×³äµçµç1%ʱ¼ä
+#define CHARGE_FULL_DELAY_TIMES 10 //³äµçÂú¼ì²â·À¶¶Ê±¼ä
+#define USBCHARGE_IDENTIFY_TIMES 5 //²åÈëUSB»ìÁ÷£¬pcʶ±ð¼ì²âʱ¼ä
+
+#define NUM_VOLTAGE_SAMPLE ((SLOPE_SECOND_COUNTS * 1000) / TIMER_MS_COUNTS)
+#define NUM_DISCHARGE_MIN_SAMPLE ((DISCHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
+#define NUM_CHARGE_MIN_SAMPLE ((CHARGE_MIN_SECOND * 1000) / TIMER_MS_COUNTS)
+#define NUM_CHARGE_MID_SAMPLE ((CHARGE_MID_SECOND * 1000) / TIMER_MS_COUNTS)
+#define NUM_CHARGE_MAX_SAMPLE ((CHARGE_MAX_SECOND * 1000) / TIMER_MS_COUNTS)
+#define NUM_CHARGE_FULL_DELAY_TIMES ((CHARGE_FULL_DELAY_TIMES * 1000) / TIMER_MS_COUNTS) //³äµçÂú״̬³ÖÐøʱ¼ä³¤¶È
+#define NUM_USBCHARGE_IDENTIFY_TIMES ((USBCHARGE_IDENTIFY_TIMES * 1000) / TIMER_MS_COUNTS) //³äµçÂú״̬³ÖÐøʱ¼ä³¤¶È
+
+#define BAT_2V5_VALUE 2500
+
+
+#define BATT_FILENAME "/data/bat_last_capacity.dat"
+
+static struct wake_lock batt_wake_lock;
+
+
+struct batt_vol_cal{
+ u32 disp_cal;
+ u32 dis_charge_vol;
+ u32 charge_vol;
+};
+#if 0
+
+#ifdef CONFIG_BATTERY_RK30_VOL3V8
+
+#define BATT_MAX_VOL_VALUE 4120 //ÂúµçʱµÄµç³Øµçѹ
+#define BATT_ZERO_VOL_VALUE 3400 //¹Ø»úʱµÄµç³Øµçѹ
+#define BATT_NOMAL_VOL_VALUE 3800
+//divider resistance
+#define BAT_PULL_UP_R 200
+#define BAT_PULL_DOWN_R 200
+
+static struct batt_vol_cal batt_table[] = {
+ {0,3400,3520},{1,3420,3525},{2,3420,3575},{3,3475,3600},{5,3505,3620},{7,3525,3644},
+ {9,3540,3662},{11,3557,3670},{13,3570,3684},{15,3580,3700},{17,3610,3715},
+ {19,3630,3720},{21,3640,3748},{23,3652,3756},{25,3662,3775},{27,3672,3790},
+ {29,3680,3810},{31,3687,3814},{33,3693,3818},{35,3699,3822},{37,3705,3825},
+ {39,3710,3830},{41,3714,3832},{43,3718,3834},{45,3722,3836},{47,3726,3837},
+ {49,3730,3839},{51,3734,3841},{53,3738,3842},{55,3742,3844},{57,3746,3844},
+ {59,3750,3855},{61,3756,3860},{63,3764,3864},{65,3774,3871},{67,3786,3890},
+ {69,3800,3910},{71,3808,3930},{73,3817,3977},{75,3827,3977},{77,3845,3997},
+ {79,3950,4030},{81,3964,4047},{83,3982,4064},{85,4002,4080},{87,4026,4096},
+ {89,4030,4132},{91,4034,4144},{93,4055,4150},{95,4085,4195},{97,4085,4195},{100,4120,4200},
+};
+#else
+#define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
+#define BATT_ZERO_VOL_VALUE 6800 // power down voltage
+#define BATT_NOMAL_VOL_VALUE 7600
+
+//¶¨ÒåADC²ÉÑù·Öѹµç×裬ÒÔʵ¼ÊֵΪ׼£¬µ¥Î»K
+
+#define BAT_PULL_UP_R 300
+#define BAT_PULL_DOWN_R 100
+
+static struct batt_vol_cal batt_table[] = {
+ {0,6800,7400}, {1,6840,7440}, {2,6880,7480}, {3,6950,7450}, {5,7010,7510}, {7,7050,7550},
+ {9,7080,7580}, {11,7104,7604}, {13,7140,7640}, {15,7160,7660}, {17,7220,7720},
+ {19,7260,7760}, {21,7280,7780}, {23,7304,7802}, {25,7324,7824}, {27,7344,7844},
+ {29,7360,7860}, {31,7374,7874}, {33,7386,7886}, {35,7398,7898}, {37,7410,7910},//500
+ {39,7420,7920}, {41,7424,7928}, {43,7436,7947}, {45,7444,7944}, {47,7450,7958}, //508
+ {49,7460,7965}, {51,7468,7975}, {53, 7476,7990}, {55,7482,8000}, {57,7492,8005}, // 5 14
+ {59,7500,8011}, {61,7510,8033}, {63,7528,8044}, {65,7548,8055}, {67,7560,8066},//506
+ {69,7600,8070}, {71,7618,8075}, {73,7634,8080}, {75,7654,8085}, {77,7690,8100}, //400
+ {79,7900,8180}, {81,7920,8210}, {83,7964,8211}, {85,8000,8214}, {87,8002,8218},//290
+ {89,8012, 8220}, {91,8022,8235}, {93,8110,8260}, {95,8140,8290}, {97,8170,8300}, {100,8200 ,8310},//110
+
+};
+#endif
+
+
+
+#define BATT_NUM ARRAY_SIZE(batt_table)
+#endif
+
+#define BATTERY_APK
+
+#ifdef BATTERY_APK
+
+#define BATT_NUM 11
+#include <linux/fs.h>
+int battery_dbg_level = 0;
+int battery_test_flag = 0;
+int gVoltageCnt = 3400;
+int gDoubleVoltageCnt = 6800;
+#ifdef CONFIG_BATTERY_RK30_VOL3V8
+#define BATT_MAX_VOL_VALUE 4120 //ÂúµçʱµÄµç³Øµçѹ
+#define BATT_ZERO_VOL_VALUE 3400 //¹Ø»úʱµÄµç³Øµçѹ
+#define BATT_NOMAL_VOL_VALUE 3800
+
+//int pull_up_res =100;
+//int pull_down_res = 100;
+
+
+static int batt_table[2*BATT_NUM+6] =
+{
+ 0x4B434F52,0x7461625F,0x79726574,0,100,100,
+ 3496, 3548, 3599, 3626, 3655, 3697, 3751, 3812, 3877, 3949, 4030, //discharge
+ 3540, 3785, 3842, 3861, 3915, 3980, 4041, 4135, 4169, 4175, 4185 //charge
+};
+#define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
+#else
+#define BATT_MAX_VOL_VALUE 8284 //Full charge voltage
+#define BATT_ZERO_VOL_VALUE 6800 // power down voltage
+#define BATT_NOMAL_VOL_VALUE 7600
+//int pull_up_res =300;
+//int pull_down_res = 100;
+//¶¨ÒåADC²ÉÑù·Öѹµç×裬ÒÔʵ¼ÊֵΪ׼£¬µ¥Î»K
+
+static int batt_table[2*BATT_NUM+6] =
+{
+ 0x4B434F52,0x7461625F,0x79726574,1,300,100,
+ 6800,7242,7332,7404,7470,7520,7610,7744,7848,8016,8284,
+ 7630, 7754, 7852, 7908, 7956, 8024, 8112, 8220, 8306, 8318, 8328
+};
+#define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (batt_table[4] +batt_table[5])) / (1024 *batt_table[5]))
+
+
+#endif
+#else
+//#define adc_to_voltage(adc_val) ((adc_val * BAT_2V5_VALUE * (BAT_PULL_UP_R + BAT_PULL_DOWN_R)) / (1024 * BAT_PULL_DOWN_R))
+#endif
+int Cnt=0;
+unsigned long gSecondsCnt = 0;
+
+char gDischargeFlag[3] = {"on "};
+
+
+/********************************************************************************/
+
+extern int dwc_vbus_status(void);
+extern int get_msc_connect_flag(void);
+
+struct rk30_adc_battery_data {
+ int irq;
+
+ //struct timer_list timer;
+ struct workqueue_struct *wq;
+ struct delayed_work delay_work;
+ struct work_struct dcwakeup_work;
+ struct work_struct lowerpower_work;
+ bool resume;
+
+ struct rk30_adc_battery_platform_data *pdata;
+
+ int full_times;
+
+ struct adc_client *client;
+ int adc_val;
+ int adc_samples[NUM_VOLTAGE_SAMPLE+2];
+
+ int bat_status;
+ int bat_status_cnt;
+ int bat_health;
+ int bat_present;
+ int bat_voltage;
+ int bat_capacity;
+ int bat_change;
+
+ int old_charge_level;
+ int *pSamples;
+ int gBatCapacityDisChargeCnt;
+ int gBatCapacityChargeCnt;
+ int capacitytmp;
+ int poweron_check;
+ int suspend_capacity;
+
+ int status_lock;
+
+};
+static struct rk30_adc_battery_data *gBatteryData;
+
+
+#ifdef BATTERY_APK
+#define BAT_ADC_TABLE_LEN 11
+static ssize_t bat_param_read(struct device *dev,struct device_attribute *attr, char *buf)
+{
+#if 1
+ int i;
+ for(i=0;i<BATT_NUM;i++)
+ printk("i=%d batt_table=%d\n",i+6,batt_table[i+6]);
+
+ for(i=0;i<BATT_NUM;i++)
+ printk("i=%d batt_table=%d\n",i+17,batt_table[i+17]);
+#endif
+ return 0;
+}
+DEVICE_ATTR(batparam, 0777, bat_param_read,NULL);
+
+
+static ssize_t rkbatt_show_debug_attrs(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", battery_dbg_level);
+}
+
+static ssize_t rkbatt_restore_debug_attrs(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int liTmp;
+
+ sscanf(buf, "%d", &liTmp);
+
+ if(liTmp != 0 && liTmp != 1)
+ {
+ dev_err(dev, "rk29adc_restore_debug_attrs err\n");
+ }
+ else
+ {
+ battery_dbg_level = liTmp;
+ }
+ return size;
+}
+
+static ssize_t rkbatt_show_state_attrs(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rk30_adc_battery_platform_data *pdata = gBatteryData->pdata;
+
+ return sprintf(buf,
+ "gBatVol=%d,gBatCap=%d,charge_ok=%d,%s\n",
+ gBatteryData->bat_voltage,gBatteryData->bat_capacity,
+ gpio_get_value(pdata->charge_ok_pin),gDischargeFlag);
+}
+
+static ssize_t rkbatt_restore_state_attrs(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ return size;
+}
+
+static ssize_t rkbatt_show_value_attrs(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "pull_up_res =%d,\npull_down_res=%d\n", batt_table[4],batt_table[5]);
+}
+
+static ssize_t rkbatt_restore_value_attrs(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int liUp = 0;
+ int liDown = 0;
+
+ sscanf(buf, "%d,%d", &liUp,&liDown);
+
+ if(liUp != 0 && liDown != 0)
+ {
+ batt_table[4] = liUp;
+ batt_table[5] = liDown;
+ }
+ else
+ {
+ //nothing
+ }
+ return size;
+}
+
+static ssize_t rkbatt_show_flag_attrs(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "rk29_battery_test_flag=%d\n", battery_test_flag);
+}
+static ssize_t rkbatt_restore_flag_attrs(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int liFlag;
+
+ sscanf(buf, "%d", &liFlag);
+
+ if(liFlag != 0)
+ {
+ battery_test_flag = liFlag;
+ }
+ return size;
+}
+static struct device_attribute rkbatt_attrs[] = {
+ __ATTR(state, 0664, rkbatt_show_state_attrs, rkbatt_restore_state_attrs),
+ __ATTR(debug, 0664, rkbatt_show_debug_attrs, rkbatt_restore_debug_attrs),
+ __ATTR(value, 0666, rkbatt_show_value_attrs, rkbatt_restore_value_attrs),
+ __ATTR(flag, 0666, rkbatt_show_flag_attrs, rkbatt_restore_flag_attrs),
+};
+
+static int create_sysfs_interfaces(struct device *dev)
+{
+ int liTmep;
+ for (liTmep = 0; liTmep < ARRAY_SIZE(rkbatt_attrs); liTmep++)
+ {
+ if (device_create_file(dev, rkbatt_attrs + liTmep))
+ {
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ for ( ; liTmep >= 0; liTmep--)
+ {
+ device_remove_file(dev, rkbatt_attrs + liTmep);
+ }
+
+ dev_err(dev, "%s:Unable to create sysfs interface\n", __func__);
+ return -1;
+}
+
+#endif
+
+
+
+enum {
+ BATTERY_STATUS = 0,
+ BATTERY_HEALTH = 1,
+ BATTERY_PRESENT = 2,
+ BATTERY_CAPACITY = 3,
+ BATTERY_AC_ONLINE = 4,
+ BATTERY_STATUS_CHANGED = 5,
+ AC_STATUS_CHANGED = 6,
+ BATTERY_INT_STATUS = 7,
+ BATTERY_INT_ENABLE = 8,
+};
+
+typedef enum {
+ CHARGER_BATTERY = 0,
+ CHARGER_USB,
+ CHARGER_AC
+} charger_type_t;
+
+
+
+
+
+static int rk30_adc_battery_load_capacity(void)
+{
+ char value[4];
+ int* p = (int *)value;
+ long fd = sys_open(BATT_FILENAME,O_RDONLY,0);
+
+ if(fd < 0){
+ pr_bat("rk30_adc_battery_load_capacity: open file /data/bat_last_capacity.dat failed\n");
+ return -1;
+ }
+
+ sys_read(fd,(char __user *)value,4);
+ sys_close(fd);
+
+ return (*p);
+}
+
+static void rk30_adc_battery_put_capacity(int loadcapacity)
+{
+ char value[4];
+ int* p = (int *)value;
+ long fd = sys_open(BATT_FILENAME,O_CREAT | O_RDWR,0);
+
+ if(fd < 0){
+ pr_bat("rk30_adc_battery_put_capacity: open file /data/bat_last_capacity.dat failed\n");
+ return;
+ }
+
+ *p = loadcapacity;
+ sys_write(fd, (const char __user *)value, 4);
+
+ sys_close(fd);
+}
+
+static void rk30_adc_battery_charge_enable(struct rk30_adc_battery_data *bat)
+{
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+
+ if (pdata->charge_set_pin != INVALID_GPIO){
+ gpio_direction_output(pdata->charge_set_pin, pdata->charge_set_level);
+ }
+}
+
+static void rk30_adc_battery_charge_disable(struct rk30_adc_battery_data *bat)
+{
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+
+ if (pdata->charge_set_pin != INVALID_GPIO){
+ gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
+ }
+}
+
+//extern int suspend_flag;
+static int rk30_adc_battery_get_charge_level(struct rk30_adc_battery_data *bat)
+{
+ int charge_on = 0;
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+
+#if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
+ if (pdata->dc_det_pin != INVALID_GPIO){
+ if (gpio_get_value (pdata->dc_det_pin) == pdata->dc_det_level){
+ charge_on = 1;
+ }
+ }
+#endif
+
+#if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
+ if (charge_on == 0){
+ if (suspend_flag)
+ return;
+ if (1 == dwc_vbus_status()) { //¼ì²âµ½USB²åÈ룬µ«ÊÇÎÞ·¨Ê¶±ðÊÇ·ñÊdzäµçÆ÷
+ //ͨ¹ýÑÓʱ¼ì²âPCʶ±ð±êÖ¾£¬Èç¹û³¬Ê±¼ì²â²»µ½£¬ËµÃ÷Êdzäµç
+ if (0 == get_msc_connect_flag()){ //²åÈë³äµçÆ÷ʱ¼ä´óÓÚÒ»¶¨Ê±¼äÖ®ºó£¬¿ªÊ¼½øÈë³äµç״̬
+ if (++gBatUsbChargeCnt >= NUM_USBCHARGE_IDENTIFY_TIMES){
+ gBatUsbChargeCnt = NUM_USBCHARGE_IDENTIFY_TIMES + 1;
+ charge_on = 1;
+ }
+ } //·ñÔò£¬²»½øÈë³äµçģʽ
+ }
+ else{
+ gBatUsbChargeCnt = 0;
+ if (2 == dwc_vbus_status()) {
+ charge_on = 1;
+ }
+ }
+ }
+#endif
+ return charge_on;
+}
+
+//int old_charge_level;
+static int rk30_adc_battery_status_samples(struct rk30_adc_battery_data *bat)
+{
+ int charge_level;
+
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+
+ charge_level = rk30_adc_battery_get_charge_level(bat);
+
+ //¼ì²â³äµç״̬±ä»¯Çé¿ö
+ if (charge_level != bat->old_charge_level){
+ bat->old_charge_level = charge_level;
+ bat->bat_change = 1;
+
+ if(charge_level) {
+ rk30_adc_battery_charge_enable(bat);
+ }
+ else{
+ rk30_adc_battery_charge_disable(bat);
+ }
+ bat->bat_status_cnt = 0; //״̬±ä»¯¿ªÊ¼¼ÆÊý
+ }
+
+ if(charge_level == 0){
+ //discharge
+ bat->full_times = 0;
+ bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ }
+ else{
+ //CHARGE
+ if (pdata->charge_ok_pin == INVALID_GPIO){ //no charge_ok_pin
+
+ if (bat->bat_capacity == 100){
+ if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
+ bat->bat_status = POWER_SUPPLY_STATUS_FULL;
+ bat->bat_change = 1;
+ }
+ }
+ else{
+ bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
+ }
+ }
+ else{ // pin of charge_ok_pin
+ if (gpio_get_value(pdata->charge_ok_pin) != pdata->charge_ok_level){
+
+ bat->full_times = 0;
+ bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
+ }
+ else{
+ //¼ì²âµ½³äµçÂúµçƽ±êÖ¾
+ bat->full_times++;
+
+ if (bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) {
+ bat->full_times = NUM_CHARGE_FULL_DELAY_TIMES + 1;
+ }
+
+ if ((bat->full_times >= NUM_CHARGE_FULL_DELAY_TIMES) && (bat->bat_capacity >= 99)){
+ if (bat->bat_status != POWER_SUPPLY_STATUS_FULL){
+ bat->bat_status = POWER_SUPPLY_STATUS_FULL;
+ bat->bat_capacity = 100;
+ bat->bat_change = 1;
+ }
+ }
+ else{
+ bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
+ }
+ }
+ }
+ }
+
+ return charge_level;
+}
+
+static int *pSamples;
+static void rk30_adc_battery_voltage_samples(struct rk30_adc_battery_data *bat)
+{
+ int value;
+ int i,*pStart = bat->adc_samples, num = 0;
+ int level = rk30_adc_battery_get_charge_level(bat);
+
+
+ value = bat->adc_val;
+ adc_async_read(bat->client);
+
+ *pSamples++ = adc_to_voltage(value);
+
+ bat->bat_status_cnt++;
+ if (bat->bat_status_cnt > NUM_VOLTAGE_SAMPLE) bat->bat_status_cnt = NUM_VOLTAGE_SAMPLE + 1;
+
+ num = pSamples - pStart;
+
+ if (num >= NUM_VOLTAGE_SAMPLE){
+ pSamples = pStart;
+ num = NUM_VOLTAGE_SAMPLE;
+
+ }
+
+ value = 0;
+ for (i = 0; i < num; i++){
+ value += bat->adc_samples[i];
+ }
+ bat->bat_voltage = value / num;
+
+ /*Ïû³ýë´Ìµçѹ*/
+if(battery_test_flag == 0)
+{
+ if(1 == level){
+ if(bat->bat_voltage >= batt_table[2*BATT_NUM +5]+ 10)
+ bat->bat_voltage = batt_table[2*BATT_NUM +5] + 10;
+ else if(bat->bat_voltage <= batt_table[BATT_NUM +6] - 10)
+ bat->bat_voltage = batt_table[BATT_NUM +6] - 10;
+ }
+ else{
+ if(bat->bat_voltage >= batt_table[BATT_NUM +5]+ 10)
+ bat->bat_voltage = batt_table[BATT_NUM +5] + 10;
+ else if(bat->bat_voltage <= batt_table[6] - 10)
+ bat->bat_voltage = batt_table[6] - 10;
+
+ }
+}else if(battery_test_flag == 2)
+/**************************************************/
+ {
+ if(batt_table[3] == 0)
+ {
+ if(bat->bat_voltage < 3400)
+ {
+ //printk("gSecondsCnt=%ld,get_seconds()=%ld,(get_seconds() - gSecondsCnt)=%ld-------------------1\n",gSecondsCnt,get_seconds(),(get_seconds() - gSecondsCnt));
+ if((get_seconds() - gSecondsCnt) > 30)
+ {
+ gSecondsCnt = get_seconds();
+ //printk("gSecondsCnt=%ld,gVoltageCnt=%d,(gVoltageCnt - bat->bat_voltage)=%d,bat->bat_voltage=%d-------------------2\n",gSecondsCnt,gVoltageCnt,(gVoltageCnt - bat->bat_voltage),bat->bat_voltage);
+ if((gVoltageCnt - bat->bat_voltage) > 15)
+ {
+ //gVoltageCnt = bat->bat_voltage;
+ //printk("gVoltageCnt=%d-------------------3\n",gVoltageCnt);
+ strncpy(gDischargeFlag, "off" ,3);
+ }
+ gVoltageCnt = bat->bat_voltage;
+
+ }
+ }
+
+ if(bat->bat_voltage < 3400)
+ {
+ bat->bat_voltage = 3400;
+ }
+ }
+ else
+ {
+ if(bat->bat_voltage < 6800)
+ {
+ //printk("gSecondsCnt=%ld,get_seconds()=%ld,(get_seconds() - gSecondsCnt)=%ld-------------------1\n",gSecondsCnt,get_seconds(),(get_seconds() - gSecondsCnt));
+ if((get_seconds() - gSecondsCnt) > 30)
+ {
+ gSecondsCnt = get_seconds();
+ //printk("gSecondsCnt=%ld,gVoltageCnt=%d,(gVoltageCnt - bat->bat_voltage)=%d,bat->bat_voltage=%d-------------------2\n",gSecondsCnt,gVoltageCnt,(gVoltageCnt - bat->bat_voltage),bat->bat_voltage);
+ if((gDoubleVoltageCnt - bat->bat_voltage) > 30)
+ {
+ //gVoltageCnt = bat->bat_voltage;
+ //printk("gVoltageCnt=%d-------------------3\n",gVoltageCnt);
+ strncpy(gDischargeFlag, "off" ,3);
+ }
+ gDoubleVoltageCnt =bat->bat_voltage;
+ }
+ }
+ if(bat->bat_voltage < 6800)
+ {
+ bat->bat_voltage = 6800;
+ }
+ }
+ }
+/****************************************************/
+}
+static int rk30_adc_battery_voltage_to_capacity(struct rk30_adc_battery_data *bat, int BatVoltage)
+{
+ int i = 0;
+ int capacity = 0;
+
+ int *p;
+ p = batt_table;
+
+ if (rk30_adc_battery_get_charge_level(bat)){ //charge
+ if(BatVoltage >= (p[2*BATT_NUM +5])){
+ capacity = 100;
+ }
+ else{
+ if(BatVoltage <= (p[BATT_NUM +6])){
+ capacity = 0;
+ }
+ else{
+ for(i = BATT_NUM +6; i <2*BATT_NUM +6; i++){
+
+ if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
+ capacity = (i-BATT_NUM +6)*10 + ((BatVoltage - p[i]) * 10)/ (p[i+1]- p[i]);
+ break;
+ }
+ }
+ }
+ }
+
+ }
+ else{ //discharge
+ if(BatVoltage >= (p[BATT_NUM +5])){
+ capacity = 100;
+ }
+ else{
+ if(BatVoltage <= (p[6])){
+ capacity = 0;
+ }
+ else{
+ for(i = 6; i < BATT_NUM +6; i++){
+ if(((p[i]) <= BatVoltage) && (BatVoltage < (p[i+1]))){
+ capacity = (i-6)*10+ ((BatVoltage - p[i]) *10 )/ (p[i+1]- p[i]) ;
+ break;
+ }
+ }
+ }
+
+ }
+
+
+ }
+ return capacity;
+}
+
+static void rk30_adc_battery_capacity_samples(struct rk30_adc_battery_data *bat)
+{
+ int capacity = 0;
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+
+ //³ä·Åµç״̬±ä»¯ºó£¬BufferÌîÂú֮ǰ£¬²»¸üÐÂ
+ if (bat->bat_status_cnt < NUM_VOLTAGE_SAMPLE) {
+ bat->gBatCapacityDisChargeCnt = 0;
+ bat->gBatCapacityChargeCnt = 0;
+ return;
+ }
+
+ capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
+
+ if (rk30_adc_battery_get_charge_level(bat)){
+ if (capacity > bat->bat_capacity){
+ //ʵ¼Ê²ÉÑùµ½µÄÈÝÁ¿±ÈÏÔʾµÄÈÝÁ¿´ó£¬Öð¼¶ÉÏÉý
+ if (++(bat->gBatCapacityDisChargeCnt) >= NUM_CHARGE_MIN_SAMPLE){
+ bat->gBatCapacityDisChargeCnt = 0;
+ if (bat->bat_capacity < 99){
+ bat->bat_capacity++;
+ bat->bat_change = 1;
+ }
+ }
+ bat->gBatCapacityChargeCnt = 0;
+ }
+ else{ // ʵ¼ÊµÄÈÝÁ¿±È²ÉÑù±È ÏÔʾµÄÈÝÁ¿Ð¡
+ bat->gBatCapacityDisChargeCnt = 0;
+ (bat->gBatCapacityChargeCnt)++;
+
+ if (pdata->charge_ok_pin != INVALID_GPIO){
+ if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
+ //¼ì²âµ½µç³Ø³äÂú±êÖ¾£¬Í¬Ê±³¤Ê±¼äÄÚ³äµçµçѹÎޱ仯£¬¿ªÊ¼Æô¶¯¼Æʱ³äµç£¬¿ìËÙÉÏÉýÈÝÁ¿
+ if (bat->gBatCapacityChargeCnt >= NUM_CHARGE_MIN_SAMPLE){
+ bat->gBatCapacityChargeCnt = 0;
+ if (bat->bat_capacity < 99){
+ bat->bat_capacity++;
+ bat->bat_change = 1;
+ }
+ }
+ }
+ else{
+#if 0
+ if (capacity > capacitytmp){
+ //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
+ gBatCapacityChargeCnt = 0;
+ }
+ else if (/*bat->bat_capacity >= 85) &&*/ (gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
+ gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
+
+ if (bat->bat_capacity < 99){
+ bat->bat_capacity++;
+ bat->bat_change = 1;
+ }
+ }
+ }
+#else // ·ÀÖ¹µç³ØÀÏ»¯ºó³öÏֳ岻ÂúµÄÇé¿ö£¬
+ if (capacity > bat->capacitytmp){
+ //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
+ bat->gBatCapacityChargeCnt = 0;
+ }
+ else{
+
+ if ((bat->bat_capacity >= 85) &&((bat->gBatCapacityChargeCnt) > NUM_CHARGE_MAX_SAMPLE)){
+ bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
+
+ if (bat->bat_capacity < 99){
+ bat->bat_capacity++;
+ bat->bat_change = 1;
+ }
+ }
+ }
+ }
+#endif
+
+ }
+ else{
+ //ûÓгäµçÂú¼ì²â½Å£¬³¤Ê±¼äÄÚµçѹÎޱ仯£¬¶¨Ê±Æ÷Ä£Äâ³äµç
+ if (capacity > bat->capacitytmp){
+ //¹ý³ÌÖÐÈç¹ûµçѹÓÐÔö³¤£¬¶¨Ê±Æ÷¸´Î»£¬·ÀÖ¹¶¨Ê±Æ÷Ä£Äâ³äµç±Èʵ¼Ê³äµç¿ì
+ bat->gBatCapacityChargeCnt = 0;
+ }
+ else{
+
+ if ((bat->bat_capacity >= 85) &&(bat->gBatCapacityChargeCnt > NUM_CHARGE_MAX_SAMPLE)){
+ bat->gBatCapacityChargeCnt = (NUM_CHARGE_MAX_SAMPLE - NUM_CHARGE_MID_SAMPLE);
+
+ if (bat->bat_capacity < 99){
+ bat->bat_capacity++;
+ bat->bat_change = 1;
+ }
+ }
+ }
+
+
+ }
+ }
+ }
+ else{
+ //·Åµçʱ,Ö»ÔÊÐíµçѹϽµ
+ if (capacity < bat->bat_capacity){
+ if (++(bat->gBatCapacityDisChargeCnt) >= NUM_DISCHARGE_MIN_SAMPLE){
+ bat->gBatCapacityDisChargeCnt = 0;
+ if (bat->bat_capacity > 0){
+ bat->bat_capacity-- ;
+ bat->bat_change = 1;
+ }
+ }
+ }
+ else{
+ bat->gBatCapacityDisChargeCnt = 0;
+ }
+ bat->gBatCapacityChargeCnt = 0;
+ }
+ bat->capacitytmp = capacity;
+}
+
+//static int poweron_check = 0;
+static void rk30_adc_battery_poweron_capacity_check(void)
+{
+
+ int new_capacity, old_capacity;
+
+ new_capacity = gBatteryData->bat_capacity;
+ old_capacity = rk30_adc_battery_load_capacity();
+ if ((old_capacity <= 0) || (old_capacity >= 100)){
+ old_capacity = new_capacity;
+ }
+
+ if (gBatteryData->bat_status == POWER_SUPPLY_STATUS_FULL){
+ if (new_capacity > 80){
+ gBatteryData->bat_capacity = 100;
+ }
+ }
+ else if (gBatteryData->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
+ //chargeing state
+ //ÎÊÌ⣺
+// //1£©³¤Ê±¼ä¹Ø»ú·ÅÖú󣬿ª»úºó¶ÁÈ¡µÄÈÝÁ¿Ô¶Ô¶´óÓÚʵ¼ÊÈÝÁ¿Ôõô°ì£¿
+// //2£©Èç¹û²»ÕâÑù×ö£¬¶Ìʱ¼ä¹Ø»úÔÙ¿ª»ú£¬Ç°ºóÈÝÁ¿²»Ò»ÖÂÓÖ¸ÃÔõô°ì£¿
+// //3£©Ò»ÏÂÄÇÖÖ·½Ê½ºÏÊÊ£¿
+ //gBatteryData->bat_capacity = new_capacity;
+ gBatteryData->bat_capacity = (new_capacity > old_capacity) ? new_capacity : old_capacity;
+ }else{
+
+ if(new_capacity > old_capacity + 50 )
+ gBatteryData->bat_capacity = new_capacity;
+ else
+ gBatteryData->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; //avoid the value of capacity increase
+ }
+
+
+ //printk("capacity = %d, new_capacity = %d, old_capacity = %d\n",gBatteryData->bat_capacity, new_capacity, old_capacity);
+
+ gBatteryData->bat_change = 1;
+}
+
+#if defined(CONFIG_BATTERY_RK30_USB_CHARGE)
+static int rk30_adc_battery_get_usb_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ charger_type_t charger;
+ charger = CHARGER_USB;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ if (psy->type == POWER_SUPPLY_TYPE_USB)
+ val->intval = get_msc_connect_flag();
+ printk("%s:%d\n",__FUNCTION__,val->intval);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+
+}
+
+static enum power_supply_property rk30_adc_battery_usb_props[] = {
+
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+static struct power_supply rk30_usb_supply =
+{
+ .name = "usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+
+ .get_property = rk30_adc_battery_get_usb_property,
+
+ .properties = rk30_adc_battery_usb_props,
+ .num_properties = ARRAY_SIZE(rk30_adc_battery_usb_props),
+};
+#endif
+
+#if defined(CONFIG_BATTERY_RK30_AC_CHARGE)
+static irqreturn_t rk30_adc_battery_dc_wakeup(int irq, void *dev_id)
+{
+ queue_work(gBatteryData->wq, &gBatteryData->dcwakeup_work);
+ return IRQ_HANDLED;
+}
+
+
+static int rk30_adc_battery_get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ int ret = 0;
+ charger_type_t charger;
+ charger = CHARGER_USB;
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ if (psy->type == POWER_SUPPLY_TYPE_MAINS)
+ {
+ if (rk30_adc_battery_get_charge_level(gBatteryData))
+ {
+ val->intval = 1;
+ }
+ else
+ {
+ val->intval = 0;
+ }
+ }
+ DBG("%s:%d\n",__FUNCTION__,val->intval);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static enum power_supply_property rk30_adc_battery_ac_props[] =
+{
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+static struct power_supply rk30_ac_supply =
+{
+ .name = "ac",
+ .type = POWER_SUPPLY_TYPE_MAINS,
+
+ .get_property = rk30_adc_battery_get_ac_property,
+
+ .properties = rk30_adc_battery_ac_props,
+ .num_properties = ARRAY_SIZE(rk30_adc_battery_ac_props),
+};
+
+static void rk30_adc_battery_dcdet_delaywork(struct work_struct *work)
+{
+ int ret;
+ struct rk30_adc_battery_platform_data *pdata;
+ int irq;
+ int irq_flag;
+
+ pdata = gBatteryData->pdata;
+ irq = gpio_to_irq(pdata->dc_det_pin);
+ irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
+
+ rk28_send_wakeup_key(); // wake up the system
+
+ free_irq(irq, NULL);
+ ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);// reinitialize the DC irq
+ if (ret) {
+ free_irq(irq, NULL);
+ }
+
+ power_supply_changed(&rk30_ac_supply);
+
+ gBatteryData->bat_status_cnt = 0; //the state of battery is change
+
+}
+
+
+#endif
+
+static int rk30_adc_battery_get_status(struct rk30_adc_battery_data *bat)
+{
+ return (bat->bat_status);
+}
+
+static int rk30_adc_battery_get_health(struct rk30_adc_battery_data *bat)
+{
+ return POWER_SUPPLY_HEALTH_GOOD;
+}
+
+static int rk30_adc_battery_get_present(struct rk30_adc_battery_data *bat)
+{
+ return (bat->bat_voltage < BATT_MAX_VOL_VALUE) ? 0 : 1;
+}
+
+static int rk30_adc_battery_get_voltage(struct rk30_adc_battery_data *bat)
+{
+ return (bat->bat_voltage );
+}
+
+static int rk30_adc_battery_get_capacity(struct rk30_adc_battery_data *bat)
+{
+ return (bat->bat_capacity);
+}
+
+static int rk30_adc_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ val->intval = rk30_adc_battery_get_status(gBatteryData);
+ DBG("gBatStatus=%d\n",val->intval);
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ val->intval = rk30_adc_battery_get_health(gBatteryData);
+ DBG("gBatHealth=%d\n",val->intval);
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = rk30_adc_battery_get_present(gBatteryData);
+ DBG("gBatPresent=%d\n",val->intval);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val ->intval = rk30_adc_battery_get_voltage(gBatteryData);
+ DBG("gBatVoltage=%d\n",val->intval);
+ break;
+ // case POWER_SUPPLY_PROP_CURRENT_NOW:
+ // val->intval = 1100;
+ // break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ if(battery_test_flag == 2)
+ val->intval = 50;
+ else
+ val->intval = rk30_adc_battery_get_capacity(gBatteryData);
+ DBG("gBatCapacity=%d%%\n",val->intval);
+ break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ val->intval = BATT_MAX_VOL_VALUE;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = BATT_ZERO_VOL_VALUE;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static enum power_supply_property rk30_adc_battery_props[] = {
+
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+// POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+};
+
+static struct power_supply rk30_battery_supply =
+{
+ .name = "battery",
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+
+ .get_property = rk30_adc_battery_get_property,
+
+ .properties = rk30_adc_battery_props,
+ .num_properties = ARRAY_SIZE(rk30_adc_battery_props),
+};
+
+#ifdef CONFIG_PM
+static void rk30_adc_battery_resume_check(void)
+{
+ int i;
+ int level,oldlevel;
+ int new_capacity, old_capacity;
+ struct rk30_adc_battery_data *bat = gBatteryData;
+
+ bat->old_charge_level = -1;
+ pSamples = bat->adc_samples;
+
+ adc_sync_read(bat->client); //start adc sample
+ level = oldlevel = rk30_adc_battery_status_samples(bat);//init charge status
+
+ for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++) { //0.3 s
+
+ mdelay(1);
+ rk30_adc_battery_voltage_samples(bat); //get voltage
+ level = rk30_adc_battery_status_samples(bat); //check charge status
+ if (oldlevel != level){
+ oldlevel = level; //if charge status changed, reset sample
+ i = 0;
+ }
+ }
+ new_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage);
+ old_capacity =gBatteryData-> suspend_capacity;
+
+ if (bat->bat_status != POWER_SUPPLY_STATUS_NOT_CHARGING){
+ //chargeing state
+ bat->bat_capacity = (new_capacity > old_capacity) ? new_capacity : old_capacity;
+ }
+ else{
+ bat->bat_capacity = (new_capacity < old_capacity) ? new_capacity : old_capacity; // aviod the value of capacity increase dicharge
+ }
+
+}
+
+static int rk30_adc_battery_suspend(struct platform_device *dev, pm_message_t state)
+{
+ int irq;
+ gBatteryData->suspend_capacity = gBatteryData->bat_capacity;
+ cancel_delayed_work(&gBatteryData->delay_work);
+
+ if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
+
+ irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
+ enable_irq(irq);
+ enable_irq_wake(irq);
+ }
+
+ return 0;
+}
+
+static int rk30_adc_battery_resume(struct platform_device *dev)
+{
+ int irq;
+ gBatteryData->resume = true;
+ queue_delayed_work(gBatteryData->wq, &gBatteryData->delay_work, msecs_to_jiffies(100));
+ if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
+
+ irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
+ disable_irq_wake(irq);
+ disable_irq(irq);
+ }
+ return 0;
+}
+#else
+#define rk30_adc_battery_suspend NULL
+#define rk30_adc_battery_resume NULL
+#endif
+
+
+unsigned long AdcTestCnt = 0;
+static void rk30_adc_battery_timer_work(struct work_struct *work)
+{
+#ifdef CONFIG_PM
+ if (gBatteryData->resume) {
+ rk30_adc_battery_resume_check();
+ gBatteryData->resume = false;
+ }
+#endif
+
+
+ rk30_adc_battery_status_samples(gBatteryData);
+
+ if (gBatteryData->poweron_check){
+ gBatteryData->poweron_check = 0;
+ rk30_adc_battery_poweron_capacity_check();
+ }
+
+ rk30_adc_battery_voltage_samples(gBatteryData);
+ rk30_adc_battery_capacity_samples(gBatteryData);
+
+ if( 1 == rk30_adc_battery_get_charge_level(gBatteryData)){ // charge
+ if(0 == gBatteryData->status_lock ){
+ wake_lock(&batt_wake_lock); //lock
+ gBatteryData->status_lock = 1;
+ }
+ }
+ else{
+ if(1 == gBatteryData->status_lock ){
+ wake_unlock(&batt_wake_lock); //unlock
+ gBatteryData->status_lock = 0;
+ }
+
+ }
+
+
+ /*update battery parameter after adc and capacity has been changed*/
+ if(gBatteryData->bat_change){
+ gBatteryData->bat_change = 0;
+ rk30_adc_battery_put_capacity(gBatteryData->bat_capacity);
+ power_supply_changed(&rk30_battery_supply);
+ }
+
+ if (rk30_battery_dbg_level){
+ if (++AdcTestCnt >= 2)
+ {
+ AdcTestCnt = 0;
+
+ printk("Status = %d, RealAdcVal = %d, RealVol = %d,gBatVol = %d, gBatCap = %d, RealCapacity = %d, dischargecnt = %d, chargecnt = %d\n",
+ gBatteryData->bat_status, gBatteryData->adc_val, adc_to_voltage(gBatteryData->adc_val),
+ gBatteryData->bat_voltage, gBatteryData->bat_capacity, gBatteryData->capacitytmp, gBatteryData->gBatCapacityDisChargeCnt,gBatteryData-> gBatCapacityChargeCnt);
+
+ }
+ }
+ queue_delayed_work(gBatteryData->wq, &gBatteryData->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
+
+}
+
+
+static int rk30_adc_battery_io_init(struct rk30_adc_battery_platform_data *pdata)
+{
+ int ret = 0;
+
+ if (pdata->io_init) {
+ pdata->io_init();
+ }
+
+ //charge control pin
+ if (pdata->charge_set_pin != INVALID_GPIO){
+ ret = gpio_request(pdata->charge_set_pin, NULL);
+ if (ret) {
+ printk("failed to request dc_det gpio\n");
+ goto error;
+ }
+ gpio_direction_output(pdata->charge_set_pin, 1 - pdata->charge_set_level);
+ }
+
+ //dc charge detect pin
+ if (pdata->dc_det_pin != INVALID_GPIO){
+ ret = gpio_request(pdata->dc_det_pin, NULL);
+ if (ret) {
+ printk("failed to request dc_det gpio\n");
+ goto error;
+ }
+
+ gpio_pull_updown(pdata->dc_det_pin, GPIOPullUp);//important
+ ret = gpio_direction_input(pdata->dc_det_pin);
+ if (ret) {
+ printk("failed to set gpio dc_det input\n");
+ goto error;
+ }
+ }
+
+ //charge ok detect
+ if (pdata->charge_ok_pin != INVALID_GPIO){
+ ret = gpio_request(pdata->charge_ok_pin, NULL);
+ if (ret) {
+ printk("failed to request charge_ok gpio\n");
+ goto error;
+ }
+
+ gpio_pull_updown(pdata->charge_ok_pin, GPIOPullUp);//important
+ ret = gpio_direction_input(pdata->charge_ok_pin);
+ if (ret) {
+ printk("failed to set gpio charge_ok input\n");
+ goto error;
+ }
+ }
+ //batt low pin
+ if( pdata->batt_low_pin != INVALID_GPIO){
+ ret = gpio_request(pdata->batt_low_pin, NULL);
+ if (ret) {
+ printk("failed to request batt_low_pin gpio\n");
+ goto error;
+ }
+
+ gpio_pull_updown(pdata->batt_low_pin, GPIOPullUp);
+ ret = gpio_direction_input(pdata->batt_low_pin);
+ if (ret) {
+ printk("failed to set gpio batt_low_pin input\n");
+ goto error;
+ }
+ }
+
+ return 0;
+error:
+ return -1;
+}
+
+//extern void kernel_power_off(void);
+static void rk30_adc_battery_check(struct rk30_adc_battery_data *bat)
+{
+ int i;
+ int level,oldlevel;
+ struct rk30_adc_battery_platform_data *pdata = bat->pdata;
+ //printk("%s--%d:\n",__FUNCTION__,__LINE__);
+
+ bat->old_charge_level = -1;
+ bat->capacitytmp = 0;
+ bat->suspend_capacity = 0;
+
+ pSamples = bat->adc_samples;
+
+ adc_sync_read(bat->client); //start adc sample
+ level = oldlevel = rk30_adc_battery_status_samples(bat);//init charge status
+
+ bat->full_times = 0;
+ for (i = 0; i < NUM_VOLTAGE_SAMPLE; i++){ //0.3 s
+ mdelay(1);
+ rk30_adc_battery_voltage_samples(bat); //get voltage
+ //level = rk30_adc_battery_status_samples(bat); //check charge status
+ level = rk30_adc_battery_get_charge_level(bat);
+
+ if (oldlevel != level){
+ oldlevel = level; //if charge status changed, reset sample
+ i = 0;
+ }
+ }
+
+ bat->bat_capacity = rk30_adc_battery_voltage_to_capacity(bat, bat->bat_voltage); //init bat_capacity
+
+
+ bat->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ if (rk30_adc_battery_get_charge_level(bat)){
+ bat->bat_status = POWER_SUPPLY_STATUS_CHARGING;
+
+ if (pdata->charge_ok_pin != INVALID_GPIO){
+ if (gpio_get_value(pdata->charge_ok_pin) == pdata->charge_ok_level){
+ bat->bat_status = POWER_SUPPLY_STATUS_FULL;
+ bat->bat_capacity = 100;
+ }
+ }
+ }
+
+
+
+#if 1
+ rk30_adc_battery_poweron_capacity_check();
+#else
+ gBatteryData->poweron_check = 1;
+#endif
+ gBatteryData->poweron_check = 0;
+
+/*******************************************
+//¿ª»ú²ÉÑùµ½µÄµçѹºÍÉϴιػú±£´æµçѹÏà²î½Ï´ó£¬Ôõô´¦Àí£¿
+if (bat->bat_capacity > old_capacity)
+{
+if ((bat->bat_capacity - old_capacity) > 20)
+{
+
+}
+}
+else if (bat->bat_capacity < old_capacity)
+{
+if ((old_capacity > bat->bat_capacity) > 20)
+{
+
+}
+}
+*********************************************/
+ if (bat->bat_capacity == 0) bat->bat_capacity = 1;
+
+
+#if 0
+ if ((bat->bat_voltage <= batt_table[0].dis_charge_vol+ 50)&&(bat->bat_status != POWER_SUPPLY_STATUS_CHARGING)){
+ kernel_power_off();
+ }
+#endif
+}
+
+static void rk30_adc_battery_callback(struct adc_client *client, void *param, int result)
+{
+#if 0
+ struct rk30_adc_battery_data *info = container_of(client, struct rk30_adc_battery_data,
+ client);
+ info->adc_val = result;
+#endif
+ if (result < 0){
+ pr_bat("adc_battery_callback resule < 0 , the value ");
+ return;
+ }
+ else{
+ gBatteryData->adc_val = result;
+ pr_bat("result = %d, gBatteryData->adc_val = %d\n", result, gBatteryData->adc_val );
+ }
+ return;
+}
+
+#if 1
+static void rk30_adc_battery_lowerpower_delaywork(struct work_struct *work)
+{
+ int irq;
+ if( gBatteryData->pdata->batt_low_pin != INVALID_GPIO){
+ irq = gpio_to_irq(gBatteryData->pdata->batt_low_pin);
+ disable_irq(irq);
+ }
+
+ printk("lowerpower\n");
+ rk28_send_wakeup_key(); // wake up the system
+ return;
+}
+
+
+static irqreturn_t rk30_adc_battery_low_wakeup(int irq,void *dev_id)
+{
+ queue_work(gBatteryData->wq, &gBatteryData->lowerpower_work);
+ return IRQ_HANDLED;
+}
+
+#endif
+
+static int rk30_adc_battery_probe(struct platform_device *pdev)
+{
+ int ret;
+ int irq;
+ int irq_flag;
+ struct adc_client *client;
+ struct rk30_adc_battery_data *data;
+ struct rk30_adc_battery_platform_data *pdata = pdev->dev.platform_data;
+ gSecondsCnt = get_seconds();
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (data == NULL) {
+ ret = -ENOMEM;
+ goto err_data_alloc_failed;
+ }
+ gBatteryData = data;
+
+ platform_set_drvdata(pdev, data);
+
+ data->pdata = pdata;
+ data->status_lock = 0;
+ ret = rk30_adc_battery_io_init(pdata);
+ if (ret) {
+ goto err_io_init;
+ }
+
+ memset(data->adc_samples, 0, sizeof(int)*(NUM_VOLTAGE_SAMPLE + 2));
+
+ //register adc for battery sample
+ client = adc_register(0, rk30_adc_battery_callback, NULL); //pdata->adc_channel = ani0
+ if(!client)
+ goto err_adc_register_failed;
+
+ //variable init
+ data->client = client;
+ data->adc_val = adc_sync_read(client);
+
+ ret = power_supply_register(&pdev->dev, &rk30_battery_supply);
+ if (ret){
+ printk(KERN_INFO "fail to battery power_supply_register\n");
+ goto err_battery_failed;
+ }
+#ifdef BATTERY_APK
+ ret = device_create_file(&pdev->dev,&dev_attr_batparam);
+ if(ret)
+ {
+ printk(KERN_ERR "failed to create bat param file\n");
+ goto err_battery_failed;
+ }
+
+#endif
+#if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
+ ret = power_supply_register(&pdev->dev, &rk30_usb_supply);
+ if (ret){
+ printk(KERN_INFO "fail to usb power_supply_register\n");
+ goto err_usb_failed;
+ }
+#endif
+ wake_lock_init(&batt_wake_lock, WAKE_LOCK_SUSPEND, "batt_lock");
+
+ data->wq = create_singlethread_workqueue("adc_battd");
+ INIT_DELAYED_WORK(&data->delay_work, rk30_adc_battery_timer_work);
+ //Power on Battery detect
+ rk30_adc_battery_check(data);
+ queue_delayed_work(data->wq, &data->delay_work, msecs_to_jiffies(TIMER_MS_COUNTS));
+
+#if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
+ ret = power_supply_register(&pdev->dev, &rk30_ac_supply);
+ if (ret) {
+ printk(KERN_INFO "fail to ac power_supply_register\n");
+ goto err_ac_failed;
+ }
+ //init dc dectet irq & delay work
+ if (pdata->dc_det_pin != INVALID_GPIO){
+ INIT_WORK(&data->dcwakeup_work, rk30_adc_battery_dcdet_delaywork);
+
+ irq = gpio_to_irq(pdata->dc_det_pin);
+ irq_flag = gpio_get_value (pdata->dc_det_pin) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
+ ret = request_irq(irq, rk30_adc_battery_dc_wakeup, irq_flag, "ac_charge_irq", NULL);
+ if (ret) {
+ printk("failed to request dc det irq\n");
+ goto err_dcirq_failed;
+ }
+ enable_irq_wake(irq);
+
+ }
+#endif
+
+#if 1
+ // batt low irq lowerpower_work
+ if( pdata->batt_low_pin != INVALID_GPIO){
+ INIT_WORK(&data->lowerpower_work, rk30_adc_battery_lowerpower_delaywork);
+
+ irq = gpio_to_irq(pdata->batt_low_pin);
+ ret = request_irq(irq, rk30_adc_battery_low_wakeup, IRQF_TRIGGER_LOW, "batt_low_irq", NULL);
+
+ if (ret) {
+ printk("failed to request batt_low_irq irq\n");
+ goto err_lowpowerirq_failed;
+ }
+ disable_irq(irq);
+
+ }
+#endif
+
+#ifdef BATTERY_APK
+ ret = create_sysfs_interfaces(&pdev->dev);
+ if (ret < 0)
+ {
+ dev_err(&pdev->dev,
+ "device rk30_adc_batterry sysfs register failed\n");
+ goto err_sysfs;
+ }
+
+#endif
+ printk(KERN_INFO "rk30_adc_battery: driver initialized\n");
+
+ return 0;
+err_sysfs:
+#if defined (CONFIG_BATTERY_RK30_USB_CHARGE)
+err_usb_failed:
+ power_supply_unregister(&rk30_usb_supply);
+#endif
+
+err_ac_failed:
+#if defined (CONFIG_BATTERY_RK30_AC_CHARGE)
+ power_supply_unregister(&rk30_ac_supply);
+#endif
+
+err_battery_failed:
+ power_supply_unregister(&rk30_battery_supply);
+
+err_dcirq_failed:
+ free_irq(gpio_to_irq(pdata->dc_det_pin), data);
+#if 1
+ err_lowpowerirq_failed:
+ free_irq(gpio_to_irq(pdata->batt_low_pin), data);
+#endif
+err_adc_register_failed:
+err_io_init:
+err_data_alloc_failed:
+ kfree(data);
+
+ printk("rk30_adc_battery: error!\n");
+
+ return ret;
+}
+
+static int rk30_adc_battery_remove(struct platform_device *pdev)
+{
+ struct rk30_adc_battery_data *data = platform_get_drvdata(pdev);
+ struct rk30_adc_battery_platform_data *pdata = pdev->dev.platform_data;
+
+ cancel_delayed_work(&gBatteryData->delay_work);
+#if defined(CONFIG_BATTERY_RK30_USB_CHARGE)
+ power_supply_unregister(&rk30_usb_supply);
+#endif
+#if defined(CONFIG_BATTERY_RK30_AC_CHARGE)
+ power_supply_unregister(&rk30_ac_supply);
+#endif
+ power_supply_unregister(&rk30_battery_supply);
+
+ free_irq(gpio_to_irq(pdata->dc_det_pin), data);
+
+ kfree(data);
+
+ return 0;
+}
+
+static struct platform_driver rk30_adc_battery_driver = {
+ .probe = rk30_adc_battery_probe,
+ .remove = rk30_adc_battery_remove,
+ .suspend = rk30_adc_battery_suspend,
+ .resume = rk30_adc_battery_resume,
+ .driver = {
+ .name = "rk30-battery",
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init rk30_adc_battery_init(void)
+{
+ return platform_driver_register(&rk30_adc_battery_driver);
+}
+
+static void __exit rk30_adc_battery_exit(void)
+{
+ platform_driver_unregister(&rk30_adc_battery_driver);
+}
+
+subsys_initcall(rk30_adc_battery_init);//subsys_initcall(rk30_adc_battery_init);
+module_exit(rk30_adc_battery_exit);
+
+MODULE_DESCRIPTION("Battery detect driver for the rk30");
+MODULE_AUTHOR("luowei lw@rock-chips.com");
+MODULE_LICENSE("GPL");
projects / firefly-linux-kernel-4.4.55.git / commitdiff