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Remove BME680 placeholder

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This commit is contained in:
Renze Nicolai 2022-06-29 22:02:42 +02:00
parent aaf23a0e61
commit 5ec6a257c5
3 changed files with 0 additions and 71 deletions
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5
components/i2c-bme680/CMakeLists.txt
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idf_component_register(
SRCS "bme680.c"
INCLUDE_DIRS include
REQUIRES "bus-i2c"
)

47
components/i2c-bme680/bme680.c
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/**
* Copyright (c) 2022 Nicolai Electronics
*
* SPDX-License-Identifier: MIT
*/
#include <sdkconfig.h>
#include <esp_log.h>
#include <driver/gpio.h>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
#include <freertos/task.h>
#include "bme680.h"
#include "managed_i2c.h"
static const char *TAG = "BME680";
esp_err_t bme680_check_id(BME680* device) {
uint8_t chip_id;
esp_err_t res = i2c_read_reg(device->i2c_bus, device->i2c_address, BME680_REG_CHIP_ID, &chip_id, 1);
if (res != ESP_OK) return res;
if (chip_id != BME680_CHIP_ID) {
ESP_LOGE(TAG, "Unexpected chip id value 0x%02X, expected 0x%02X", chip_id, BME680_CHIP_ID);
return ESP_FAIL;
}
return ESP_OK;
}
esp_err_t bme680_reset(BME680* device) {
uint8_t value = 0xFF;
esp_err_t res = i2c_write_reg_n(device->i2c_bus, device->i2c_address, BME680_REG_RESET, &value, 1);
if (res != ESP_OK) return res;
return ESP_OK;
}
esp_err_t bme680_init(BME680* device) {
esp_err_t res = bme680_reset(device);
if (res != ESP_OK) return res;
vTaskDelay(100 / portTICK_PERIOD_MS);
res = bme680_check_id(device);
if (res != ESP_OK) return res;
return res;
}
esp_err_t bme680_deinit(BME680* device) {
return bme680_reset(device);
}

19
components/i2c-bme680/include/bme680.h
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#pragma once
#include <esp_err.h>
#include <stdint.h>
#define BME680_REG_RESET 0xE0
#define BME680_REG_CHIP_ID 0xD0
#define BME680_CHIP_ID 0x61
typedef struct BME680 {
int i2c_bus;
int i2c_address;
} BME680;
esp_err_t bme680_init(BME680* device);
esp_err_t bme680_deinit(BME680* device);
esp_err_t bme680_check_id(BME680* device);
esp_err_t bme680_reset(BME680* device);