i2cscan & PMU i2c mutexing
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5ca4d2f721
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@ -12,6 +12,9 @@ int i2c_scan(void) {
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ESP_LOGI(TAG, "Starting I2C bus scan...");
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// block i2c bus access
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if (I2C_MUTEX_LOCK()) {
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for (addr = 8; addr <= 119; addr++) {
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// scan i2c bus with no more to 100KHz
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@ -55,5 +58,9 @@ int i2c_scan(void) {
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ESP_LOGI(TAG, "I2C scan done, %u devices found.", devices);
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I2C_MUTEX_UNLOCK(); // release i2c bus access
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} else
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ESP_LOGE(TAG, "I2c bus busy - scan error");
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return devices;
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}
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@ -7,40 +7,58 @@ static const char TAG[] = __FILE__;
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#ifdef HAS_PMU
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AXP20X_Class axp;
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AXP20X_Class pmu;
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void AXP192_init(void) {
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if (axp.begin(Wire, AXP192_PRIMARY_ADDRESS))
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// block i2c bus access
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if (I2C_MUTEX_LOCK()) {
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if (pmu.begin(Wire, AXP192_PRIMARY_ADDRESS))
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ESP_LOGI(TAG, "AXP192 PMU initialization failed");
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else {
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axp.setPowerOutPut(AXP192_LDO2, AXP202_ON);
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axp.setPowerOutPut(AXP192_LDO3, AXP202_ON);
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axp.setPowerOutPut(AXP192_DCDC2, AXP202_ON);
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axp.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
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axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
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axp.setDCDC1Voltage(3300);
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axp.setChgLEDMode(AXP20X_LED_BLINK_1HZ);
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// axp.setChgLEDMode(AXP20X_LED_OFF);
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axp.adc1Enable(AXP202_BATT_CUR_ADC1, 1);
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pmu.setPowerOutPut(AXP192_LDO2, AXP202_ON);
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pmu.setPowerOutPut(AXP192_LDO3, AXP202_ON);
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pmu.setPowerOutPut(AXP192_DCDC2, AXP202_ON);
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pmu.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
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pmu.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
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pmu.setDCDC1Voltage(3300);
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pmu.setChgLEDMode(AXP20X_LED_LOW_LEVEL);
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pmu.adc1Enable(AXP202_BATT_CUR_ADC1, 1);
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/*
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// I2C access of AXP202X library currently is not mutexable
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// so we need to disable AXP interrupts
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#ifdef PMU_INT
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pinMode(PMU_INT, INPUT_PULLUP);
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attachInterrupt(digitalPinToInterrupt(PMU_INT),
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[] {
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ESP_LOGI(TAG, "Power source changed");
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/* put your code here */
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// put your code here
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},
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FALLING);
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axp.enableIRQ(AXP202_VBUS_REMOVED_IRQ | AXP202_VBUS_CONNECT_IRQ |
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pmu.enableIRQ(AXP202_VBUS_REMOVED_IRQ | AXP202_VBUS_CONNECT_IRQ |
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AXP202_BATT_REMOVED_IRQ | AXP202_BATT_CONNECT_IRQ,
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1);
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axp.clearIRQ();
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pmu.clearIRQ();
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#endif // PMU_INT
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*/
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ESP_LOGI(TAG, "AXP192 PMU initialized.");
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if (pmu.isBatteryConnect())
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if (pmu.isChargeing())
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ESP_LOGI(TAG, "Running on battery, charging.");
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else
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ESP_LOGI(TAG, "Running on battery, not charging.");
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else if (pmu.isVBUSPlug())
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ESP_LOGI(TAG, "Running on USB power.");
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}
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I2C_MUTEX_UNLOCK(); // release i2c bus access
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} else
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ESP_LOGE(TAG, "I2c bus busy - PMU initialization error");
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}
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#endif // HAS_PMU
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@ -116,7 +134,7 @@ uint16_t read_voltage() {
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uint16_t voltage = 0;
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#ifdef HAS_PMU
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voltage = axp.isVBUSPlug() ? 0xffff : axp.getBattVoltage();
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voltage = pmu.isVBUSPlug() ? 0xffff : pmu.getBattVoltage();
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#else
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#ifdef BAT_MEASURE_ADC
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