mtk 电池驱动的电压，电流，温度等数据通过adc通道获取
pmic BATSNS 引脚电压 bat_vol = battery_meter_get_battery_voltage(KAL_TRUE);// 获得 PMIC 的 BATSNS 引脚电压 通过读adc某个通道可获取kal_int32 battery_meter_get_battery_voltage(void){int ret=0;int val=5;val = 5; //set avg times// 获得 PMIC 的 BATSNS 引脚电压 ret = battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_BAT_SENSE, &val);static kal_int32 read_adc_v_bat_sense(void *data){#if defined(CONFIG_POWER_EXT)*(kal_int32*)(data) = 4201;#else*(kal_int32*)(data) = PMIC_IMM_GetOneChannelValue(VBAT_CHANNEL_NUMBER,*(kal_int32*)(data),1);#endifreturn STATUS_OK;}g_sw_vbat_temp = val;return val;}PMIC 的 ISENSE 引脚电压 Vsense = battery_meter_get_VSense(); // 获得 PMIC 的 ISENSE 引脚电压 通过读adc某个通道可获取 kal_int32 battery_meter_get_VSense(void){#if defined(CONFIG_POWER_EXT)return 0;#elseint ret=0;int val=0;val = 1; //set avg times/* 获得 PMIC 的 ISENSE 引脚电压*/ret = battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_I_SENSE, &val);read_adc_v_i_sense(void *data)*(kal_int32*)(data) = PMIC_IMM_GetOneChannelValue(ISENSE_CHANNEL_NUMBER,*(kal_int32*)(data),1);return val;#endif}/* 获得充电电流 */充电电流 //如果isense电压比batsense电压大，计算电流公式，否则电流取0ICharging = battery_meter_get_charging_current();kal_int32 battery_meter_get_charging_current(void){kal_int32 ADC_BAT_SENSE_tmp[20]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};kal_int32 ADC_BAT_SENSE_sum=0;kal_int32 ADC_BAT_SENSE=0;kal_int32 ADC_I_SENSE_tmp[20]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};kal_int32 ADC_I_SENSE_sum=0;kal_int32 ADC_I_SENSE=0; int repeat=20;int i=0;int j=0;kal_int32 temp=0;int ICharging=0;int ret=0;int val=1;for(i=0 ; i ADC_BAT_SENSE){ //如果isense电压比batsense电压大，计算电流公式，否则电流取0 ICharging = (ADC_I_SENSE - ADC_BAT_SENSE + g_I_SENSE_offset)*1000/CUST_R_SENSE;}else{ICharging = 0;}return ICharging;}/* 获得充电器电压 */ // 获得 获取 PMIC 的 VCDT 引脚电压 通过读adc某个通道可获取charger_vol = battery_meter_get_charger_voltage();kal_int32 battery_meter_get_charger_voltage(void){int ret=0;int val=0;val = 5; // set avg timesret = battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_CHARGER, &val);static kal_int32 read_adc_v_charger(void *data){ #if defined(CONFIG_POWER_EXT)*(kal_int32*)(data) = 5001;#elsekal_int32 val;/* 获取 PMIC 的 VCDT 引脚电压 */val = PMIC_IMM_GetOneChannelValue(VCHARGER_CHANNEL_NUMBER,*(kal_int32*)(data),1);val = (((R_CHARGER_1+R_CHARGER_2)*100*val)/R_CHARGER_2)/100;*(kal_int32*)(data) = val;#endifreturn STATUS_OK;}//val = (((R_CHARGER_1+R_CHARGER_2)*100*val)/R_CHARGER_2)/100;return val;}/* 通过获得当前 NTC 电压，查表并进行线性插值法，得到当前的温度值 */ //得到当前的温度值 temperature = battery_meter_get_battery_temperature();signed int battery_meter_get_battery_temperature(void){#ifdef MTK_BATTERY_LIFETIME_DATA_SUPPORTsigned int batt_temp = force_get_tbat(KAL_TRUE);if (batt_temp > gFG_max_temperature)gFG_max_temperature = batt_temp;if (batt_temp < gFG_min_temperature)gFG_min_temperature = batt_temp;return batt_temp;#elsereturn force_get_tbat(KAL_TRUE);#endif}return force_get_tbat();/* 通过获得当前 NTC 电压，查表并进行线性插值法，得到当前的温度值 */int force_get_tbat(kal_bool update){#if defined(CONFIG_POWER_EXT) || defined(FIXED_TBAT_25)bm_print(BM_LOG_CRTI, "[force_get_tbat] fixed TBAT=25 t\n");return 25;#elseint bat_temperature_volt = 0;int bat_temperature_val = 0;static int pre_bat_temperature_val = -1;int fg_r_value = 0;signed int fg_current_temp = 0;kal_bool fg_current_state = KAL_FALSE;int bat_temperature_volt_temp = 0;int ret = 0;if (batt_meter_cust_data.fixed_tbat_25) {bm_print(BM_LOG_CRTI, "[force_get_tbat] fixed TBAT=25 t\n");return 25;}if (update == KAL_TRUE || pre_bat_temperature_val == -1) {/* Get V_BAT_Temperature */bat_temperature_volt = 2;/* 对应 PMIC 的硬件接口函数，这个对应的函数是在下面 battery_meter_init 模块中设置的 获得电池 NTC 对应的电压 */ret =battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_BAT_TEMP, &bat_temperature_volt);if (bat_temperature_volt != 0) {#if defined(SOC_BY_HW_FG)fg_r_value = get_r_fg_value();ret =battery_meter_ctrl(BATTERY_METER_CMD_GET_HW_FG_CURRENT,&fg_current_temp);ret =battery_meter_ctrl(BATTERY_METER_CMD_GET_HW_FG_CURRENT_SIGN,&fg_current_state);fg_current_temp = fg_current_temp / 10;if (fg_current_state == KAL_TRUE) {bat_temperature_volt_temp = bat_temperature_volt;bat_temperature_volt =bat_temperature_volt - ((fg_current_temp * fg_r_value) / 1000);} else {bat_temperature_volt_temp = bat_temperature_volt;bat_temperature_volt =bat_temperature_volt + ((fg_current_temp * fg_r_value) / 1000);}#endif/* 将 NTC 的电压通过查表获得对应温度值 */bat_temperature_val = BattVoltToTemp(bat_temperature_volt);}#ifdef CONFIG_MTK_BIF_SUPPORTbattery_charging_control(CHARGING_CMD_GET_BIF_TBAT, &bat_temperature_val);#endifbm_print(BM_LOG_CRTI, "[force_get_tbat] %d,%d,%d,%d,%d,%d\n",bat_temperature_volt_temp, bat_temperature_volt, fg_current_state,fg_current_temp, fg_r_value, bat_temperature_val);pre_bat_temperature_val = bat_temperature_val;} else {bat_temperature_val = pre_bat_temperature_val;}return bat_temperature_val;#endif}EXPORT_SYMBOL(force_get_tbat);/* 这里用来获取电池 NTC 的电压 */ temperatureV = battery_meter_get_tempV(); signed int battery_meter_get_tempV(void){#if defined(CONFIG_POWER_EXT)return 0;#elseint ret = 0;int val = 0;val = 1; /* set avg times 设置avg时间*/ret = battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_BAT_TEMP, &val);return val;#endif}static kal_int32 read_adc_v_bat_temp(void *data)// meter_hal.c文件{#if defined(CONFIG_POWER_EXT)*(kal_int32*)(data) = 0;#else#if defined(MTK_PCB_TBAT_FEATURE)int ret = 0, data[4], i, ret_value = 0, ret_temp = 0;int Channel=1;if( IMM_IsAdcInitReady() == 0 )return g_adc_init_flag;{bm_print(BM_LOG_CRTI, "[get_tbat_volt] AUXADC is not ready");return 0;}i = times;while (i--){ret_value = IMM_GetOneChannelValue(Channel, data, &ret_temp);ret += ret_temp;bm_print(BM_LOG_FULL, "[get_tbat_volt] ret_temp=%d\n",ret_temp);}ret = ret*1500/4096 ;ret = ret/times;bm_print(BM_LOG_CRTI, "[get_tbat_volt] Battery output mV = %d\n",ret);*(kal_int32*)(data) = ret;#elsebm_print(BM_LOG_FULL, "[read_adc_v_charger] return PMIC_IMM_GetOneChannelValue(4,times,1);\n");/* 读取 PMIC 的 BATON1 引脚电压 *//* 读 PMIC 对应的 ADC 的值，并将其转化为对应的电压值，这里即读取 BATON 引脚电压 */*(kal_int32*)(data) = PMIC_IMM_GetOneChannelValue(VBATTEMP_CHANNEL_NUMBER,*(kal_int32*)(data),1);#endif#endifreturn STATUS_OK;} /* 获得 下拉电阻与 NTC 并并联的电压 */temperatureR = battery_meter_get_tempR(temperatureV);/* 上拉电压/下拉电压 = 上拉电阻/ 下拉电阻 */TRes = (RBAT_PULL_UP_R*dwVolt) / (RBAT_PULL_UP_VOLT-dwVolt); signed int battery_meter_get_tempR(signed int dwVolt){#if defined(CONFIG_POWER_EXT)return 0;#elseint TRes;TRes =(batt_meter_cust_data.rbat_pull_up_r * dwVolt) /(batt_meter_cust_data.rbat_pull_up_volt - dwVolt);return TRes;#endif}adc通道层 pmic_auadc.c （提供adc通道直接读通道得到模拟信号可转化成数字信号，如电压，温度等）int PMIC_IMM_GetOneChannelValue(unsigned int dwChannel, int deCount, int trimd){int ret, adc_rdy, reg_val;int raw_data, adc_result;int adc_div = 4096, raw_mask = 0, r_val_temp = 0;int count = 0;int raw_data_sum = 0, raw_data_avg = 0;int u4Sample_times = 0;unsigned int adc_channel;adc_channel = dwChannel;do {/*defined channel 5 for TYEPC_CC1, channel 6 for TYPEC_CC2*//*defined channel 7 for CHG_DP, channel 8 for CHG_DM*/mutex_lock(&mt6392_adc_mutex);if ((dwChannel == 5) || (dwChannel == 6)) {ret = pmic_config_interface(MT6392_TYPE_C_CTRL, 0x0, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}ret = pmic_config_interface(MT6392_TYPE_C_CC_SW_FORCE_MODE_ENABLE_0, 0x5B8, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}ret = pmic_config_interface(MT6392_TYPE_C_CC_SW_FORCE_MODE_VAL_0, 0x0100, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}udelay(1000);if (dwChannel == 5) {ret = pmic_config_interface(MT6392_TYPE_C_CC_SW_FORCE_MODE_VAL_0, 0x1f40, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}/* AUXADC_RQST0_SET is bit 6*/adc_channel = 6;} else {ret = pmic_config_interface(MT6392_TYPE_C_CC_SW_FORCE_MODE_VAL_0, 0x1fc0, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}}ret = pmic_config_interface(MT6392_TYPE_C_CC_SW_FORCE_MODE_ENABLE_0, 0x05fc, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}mdelay(10);}if ((dwChannel == 7) || (dwChannel == 8)) {if (dwChannel == 7) {/*DP channel*/ret = pmic_config_interface(MT6392_CHR_CON18, 0x0700, 0x0f00, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}/* AUXADC_RQST0_SET is bit 8*/adc_channel = 8;} else {/*DM channel*/ret = pmic_config_interface(MT6392_CHR_CON18, 0x0b00, 0x0f00, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}}}/* AUXADC_RQST0 SET */ret = pmic_config_interface(MT6392_AUXADC_RQST0_SET, 0x1, 0xffff, adc_channel);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}if ((adc_channel == 0) || (adc_channel == 1))udelay(1500);elseudelay(100);/* check auxadc is ready */do {ret = pmic_read_interface(mt6392_auxadc_regs[adc_channel], ®_val, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}udelay(100);adc_rdy = (reg_val >> 15) & 1;if (adc_rdy != 0)break;count++;} while (count < count_time_out);if (adc_rdy != 1) {mutex_unlock(&mt6392_adc_mutex);pr_err("PMIC_IMM_GetOneChannelValue adc get ready Fail\n");return -ETIMEDOUT;}count = 0;/* get the raw data and calculate the adc result of adc */ret = pmic_read_interface(mt6392_auxadc_regs[adc_channel], ®_val, 0xffff, 0);if (ret < 0) {mutex_unlock(&mt6392_adc_mutex);return ret;}mutex_unlock(&mt6392_adc_mutex);switch (adc_channel) {case 0:case 1:r_val_temp = 3;raw_mask = 0x7fff;adc_div = 32768;break;case 2:case 3:case 4:r_val_temp = 1;raw_mask = 0xfff;adc_div = 4096;break;case 5:case 6:case 7:case 8:r_val_temp = 2;raw_mask = 0xfff;adc_div = 4096;break;case 9:case 10:case 11:case 12:case 13:case 14:case 15:r_val_temp = 1;raw_mask = 0xfff;adc_div = 4096;break;}/* get auxadc raw data */raw_data = reg_val & raw_mask;raw_data_sum += raw_data;u4Sample_times++;} while (u4Sample_times < deCount);raw_data_avg = raw_data_sum / deCount;/* get auxadc real result*/adc_result = (raw_data_avg * r_val_temp * VOLTAGE_FULL_RANGE) / adc_div;return adc_result;}hal 层 batter_meter_hal.c (提供一些接口可通过adc通道获取电压值)/* 读 PMIC 引用 BATSNS 的电压，即电池电压 */static kal_int32 read_adc_v_bat_sense(void *data){#if defined(CONFIG_POWER_EXT)*(kal_int32*)(data) = 4201;#else*(kal_int32*)(data) = PMIC_IMM_GetOneChannelValue(VBAT_CHANNEL_NUMBER,*(kal_int32*)(data),1);#endifreturn STATUS_OK;}core 层 batter_meter.c（调用hal的接口获取电压值）battery_meter_get_battery_voltagekal_int32 battery_meter_get_battery_voltage(void){int ret=0;int val=5;val = 5; //set avg times// 获得 PMIC 的 BATSNS 引脚电压 ret = battery_meter_ctrl(BATTERY_METER_CMD_GET_ADC_V_BAT_SENSE, &val);/* 读 PMIC 引用 BATSNS 的电压，即电池电压 */static kal_int32 read_adc_v_bat_sense(void *data){#if defined(CONFIG_POWER_EXT)*(kal_int32*)(data) = 4201;#else*(kal_int32*)(data) = PMIC_IMM_GetOneChannelValue(VBAT_CHANNEL_NUMBER,*(kal_int32*)(data),1);#endifreturn STATUS_OK;}g_sw_vbat_temp = val;return val;}battery_meter_get_VSense
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