adjust board structure

main/boards/common/i2c_device.cc

@@ -0,0 +1,31 @@
+#include "i2c_device.h"
+
+#include <esp_log.h>
+
+#define TAG "I2cDevice"
+
+
+I2cDevice::I2cDevice(i2c_master_bus_handle_t i2c_bus, uint8_t addr) {
+    i2c_device_config_t i2c_device_cfg = {
+        .dev_addr_length = I2C_ADDR_BIT_LEN_7,
+        .device_address = addr,
+        .scl_speed_hz = 100000,
+        .scl_wait_us = 0,
+        .flags = {
+            .disable_ack_check = 0,
+        },
+    };
+    ESP_ERROR_CHECK(i2c_master_bus_add_device(i2c_bus, &i2c_device_cfg, &i2c_device_));
+    assert(i2c_device_ != NULL);
+}
+
+void I2cDevice::WriteReg(uint8_t reg, uint8_t value) {
+    uint8_t buffer[2] = {reg, value};
+    ESP_ERROR_CHECK(i2c_master_transmit(i2c_device_, buffer, 2, 100));
+}
+
+uint8_t I2cDevice::ReadReg(uint8_t reg) {
+    uint8_t buffer[1];
+    ESP_ERROR_CHECK(i2c_master_transmit_receive(i2c_device_, &reg, 1, buffer, 1, 100));
+    return buffer[0];
+}