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130 lines
3.9 KiB
130 lines
3.9 KiB
#include <esp_log.h>
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#include "periph_init.h"
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#include "driver/i2c.h"
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#include "data_report.h"
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#include <driver/uart.h>
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static const char *TAG = "periph_init";
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esp_err_t periph_init() {
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esp_err_t rv;
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g_mux_data_report = xSemaphoreCreateMutex(); // XXX move elsewhere
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assert(g_mux_data_report);
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ESP_LOGI(TAG, "Init I2C");
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// VOC i2c
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{
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int i2c_master_port = I2C_NUM_0;
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i2c_config_t conf = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = CONFIG_PIN_I2C_SDA0,
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.sda_pullup_en = GPIO_PULLUP_ENABLE, // is this enough?
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.scl_io_num = CONFIG_PIN_I2C_SCL0,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 100000,
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};
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rv = i2c_param_config(i2c_master_port, &conf);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in i2c_param_config");
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return rv;
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}
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rv = i2c_driver_install(i2c_master_port, conf.mode, 0, 0, 0);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in i2c_driver_install");
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return rv;
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}
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}
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// senseair i2c
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{
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#if 0
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int i2c_master_port = I2C_NUM_1;
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i2c_config_t conf2 = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = CONFIG_PIN_I2C_SDA1,
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.sda_pullup_en = GPIO_PULLUP_ENABLE, // is this enough?
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.scl_io_num = CONFIG_PIN_I2C_SCL1,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 100000,
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};
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rv = i2c_param_config(i2c_master_port, &conf2);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in i2c_param_config");
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return rv;
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}
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rv = i2c_driver_install(i2c_master_port, conf2.mode, 0, 0, 0);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in i2c_driver_install");
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return rv;
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}
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#else
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int i2c_co2_port = I2C_NUM_1;
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const uart_config_t uart_config = {
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.baud_rate = 9600,
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.data_bits = UART_DATA_8_BITS,
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.parity = UART_PARITY_DISABLE,
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.stop_bits = UART_STOP_BITS_1,
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.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
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.source_clk = UART_SCLK_APB,
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//.use_ref_tick = true
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};
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ESP_ERROR_CHECK(uart_driver_install(i2c_co2_port,
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/* rxbuf */ 256, /* txbuf */ 256, /* que */ 0, /* uart que */ NULL, /* alloc flags */ 0));
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ESP_ERROR_CHECK( uart_param_config(i2c_co2_port, &uart_config) );
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ESP_ERROR_CHECK(uart_set_pin(i2c_co2_port,
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// CONFIG_PIN_I2C_SCL1,
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// CONFIG_PIN_I2C_SDA1,
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CONFIG_PIN_I2C_SDA1,
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CONFIG_PIN_I2C_SCL1,
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UART_PIN_NO_CHANGE,
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UART_PIN_NO_CHANGE));
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// Set UART pins(TX, RX, RTS, CTS)
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#endif
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}
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// outputs
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{
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gpio_config_t gpioconf = {
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.pin_bit_mask = (1 << CONFIG_PIN_CO2_COMSEL) | (1 << CONFIG_PIN_CO2_EN),
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.mode = GPIO_MODE_OUTPUT,
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};
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rv = gpio_config(&gpioconf);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in gpio_config");
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return rv;
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}
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gpio_set_level(CONFIG_PIN_CO2_COMSEL, 1); // low=I2C
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gpio_set_level(CONFIG_PIN_CO2_EN, 0);
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vTaskDelay(pdMS_TO_TICKS(250));
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gpio_set_level(CONFIG_PIN_CO2_EN, 1);
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}
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// input
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{
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gpio_config_t gpioconf = {
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.pin_bit_mask = (1 << CONFIG_PIN_CO2_NRDY),
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.mode = GPIO_MODE_INPUT,
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.pull_up_en = 1,
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.pull_down_en = 0,
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.intr_type = GPIO_INTR_DISABLE,
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};
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rv = gpio_config(&gpioconf);
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if (rv != ESP_OK) {
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ESP_LOGE(TAG, "Err in gpio_config");
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return rv;
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}
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}
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return ESP_OK;
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}
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