101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
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// Basic config
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#include "globals.h"
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#include "i2cscan.h"
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// Local logging tag
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static const char TAG[] = __FILE__;
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#define SSD1306_PRIMARY_ADDRESS (0x3D)
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#define SSD1306_SECONDARY_ADDRESS (0x3C)
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#define BME_PRIMARY_ADDRESS (0x77)
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#define BME_SECONDARY_ADDRESS (0x76)
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#define AXP192_PRIMARY_ADDRESS (0x34)
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#define MCP_24AA02E64_PRIMARY_ADDRESS (0x50)
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int i2c_scan(void) {
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int i2c_ret, addr;
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int devices = 0;
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ESP_LOGI(TAG, "Starting I2C bus scan...");
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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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Wire.begin(SDA, SCL, 100000);
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Wire.beginTransmission(addr);
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Wire.write(addr);
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i2c_ret = Wire.endTransmission();
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if (i2c_ret == 0) {
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devices++;
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switch (addr) {
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case SSD1306_PRIMARY_ADDRESS:
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case SSD1306_SECONDARY_ADDRESS:
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ESP_LOGI(TAG, "0x%X: SSD1306 Display controller", addr);
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break;
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case BME_PRIMARY_ADDRESS:
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case BME_SECONDARY_ADDRESS:
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ESP_LOGI(TAG, "0x%X: Bosch BME MEMS", addr);
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break;
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case AXP192_PRIMARY_ADDRESS:
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ESP_LOGI(TAG, "0x%X: AXP192 power management", addr);
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#ifdef HAS_PMU
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AXP192_init();
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#endif
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break;
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case MCP_24AA02E64_PRIMARY_ADDRESS:
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ESP_LOGI(TAG, "0x%X: 24AA02E64 serial EEPROM", addr);
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break;
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default:
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ESP_LOGI(TAG, "0x%X: Unknown device", addr);
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break;
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}
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} // switch
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} // for loop
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ESP_LOGI(TAG, "I2C scan done, %u devices found.", devices);
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return devices;
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}
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#ifdef HAS_PMU
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void AXP192_init(void) {
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AXP20X_Class axp;
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if (axp.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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/*
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axp.setChgLEDMode(LED_BLINK_4HZ);
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axp.setDCDC1Voltage(3300);
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pinMode(PMU_IRQ, INPUT_PULLUP);
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attachInterrupt(PMU_IRQ, [] { pmu_irq = true; }, FALLING);
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axp.adc1Enable(AXP202_BATT_CUR_ADC1, 1);
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axp.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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*/
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ESP_LOGI(TAG, "AXP192 PMU initialized.");
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}
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#endif // HAS_PMU
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}
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