comparison: main/u8g2_esp32_hal.c
main/u8g2_esp32_hal.c
- changeset 74
- 34da2d2b12d5
- parent 57
- 232f318a6b51
equal
deleted
inserted
replaced
| 73:c18d2951e8d7 | 74:34da2d2b12d5 |
|---|---|
| 21 static spi_device_handle_t handle_spi; ///< SPI handle. | 21 static spi_device_handle_t handle_spi; ///< SPI handle. |
| 22 static i2c_cmd_handle_t handle_i2c; ///< I2C handle. | 22 static i2c_cmd_handle_t handle_i2c; ///< I2C handle. |
| 23 static u8g2_esp32_hal_t u8g2_esp32_hal; ///< HAL state data. | 23 static u8g2_esp32_hal_t u8g2_esp32_hal; ///< HAL state data. |
| 24 static bool initialized = false; | 24 static bool initialized = false; |
| 25 | 25 |
| 26 #undef ESP_ERROR_CHECK | |
| 27 #define ESP_ERROR_CHECK(x) do { esp_err_t rc = (x); if (rc != ESP_OK) { ESP_LOGE("err", "esp_err_t = %d", rc); assert(0 && #x);} } while(0); | |
| 28 | 26 |
| 29 /* | 27 /* |
| 30 * Initialze the ESP32 HAL. | 28 * Initialze the ESP32 HAL. |
| 31 */ | 29 */ |
| 32 void u8g2_esp32_hal_init(u8g2_esp32_hal_t u8g2_esp32_hal_param) { | 30 void u8g2_esp32_hal_init(u8g2_esp32_hal_t u8g2_esp32_hal_param) { |
| 122 if (u8g2_esp32_hal.sda == U8G2_ESP32_HAL_UNDEFINED || u8g2_esp32_hal.scl == U8G2_ESP32_HAL_UNDEFINED || initialized) { | 120 if (u8g2_esp32_hal.sda == U8G2_ESP32_HAL_UNDEFINED || u8g2_esp32_hal.scl == U8G2_ESP32_HAL_UNDEFINED || initialized) { |
| 123 // here i test if already initialized, if it's the case don't do it again! | 121 // here i test if already initialized, if it's the case don't do it again! |
| 124 break; | 122 break; |
| 125 } | 123 } |
| 126 | 124 |
| 127 i2c_config_t conf; | 125 i2c_config_t conf = { |
| 128 conf.mode = I2C_MODE_MASTER; | 126 .mode = I2C_MODE_MASTER, |
| 129 conf.sda_io_num = u8g2_esp32_hal.sda; | 127 .sda_io_num = u8g2_esp32_hal.sda, |
| 130 conf.sda_pullup_en = GPIO_PULLUP_ENABLE; | 128 .sda_pullup_en = GPIO_PULLUP_ENABLE, |
| 131 conf.scl_io_num = u8g2_esp32_hal.scl; | 129 .scl_io_num = u8g2_esp32_hal.scl, |
| 132 conf.scl_pullup_en = GPIO_PULLUP_ENABLE; | 130 .scl_pullup_en = GPIO_PULLUP_ENABLE, |
| 133 conf.master.clk_speed = I2C_MASTER_FREQ_HZ; | 131 .master.clk_speed = I2C_MASTER_FREQ_HZ, |
| 132 }; | |
| 134 ESP_ERROR_CHECK(i2c_param_config(I2C_MASTER_NUM, &conf)); | 133 ESP_ERROR_CHECK(i2c_param_config(I2C_MASTER_NUM, &conf)); |
| 135 ESP_LOGI(TAG, "I2C gpio_sda: %d gpio_scl: %d clk_speed: %d master_num: %d", | 134 ESP_LOGI(TAG, "I2C gpio_sda: %d gpio_scl: %d clk_speed: %d master_num: %d", |
| 136 u8g2_esp32_hal.sda, u8g2_esp32_hal.scl, I2C_MASTER_FREQ_HZ, I2C_MASTER_NUM); | 135 u8g2_esp32_hal.sda, u8g2_esp32_hal.scl, I2C_MASTER_FREQ_HZ, I2C_MASTER_NUM); |
| 137 ESP_ERROR_CHECK(i2c_driver_install(I2C_MASTER_NUM, conf.mode, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0)); | 136 ESP_ERROR_CHECK(i2c_driver_install(I2C_MASTER_NUM, conf.mode, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0)); |
| 138 initialized = true; | 137 initialized = true; |
| 161 } | 160 } |
| 162 | 161 |
| 163 case U8X8_MSG_BYTE_END_TRANSFER: { | 162 case U8X8_MSG_BYTE_END_TRANSFER: { |
| 164 ESP_LOGD(TAG, "End I2C transfer."); | 163 ESP_LOGD(TAG, "End I2C transfer."); |
| 165 ESP_ERROR_CHECK(i2c_master_stop(handle_i2c)); | 164 ESP_ERROR_CHECK(i2c_master_stop(handle_i2c)); |
| 166 ESP_ERROR_CHECK(i2c_master_cmd_begin(I2C_MASTER_NUM, handle_i2c, I2C_TIMEOUT_MS / portTICK_RATE_MS)); | 165 i2c_master_cmd_begin(I2C_MASTER_NUM, handle_i2c, I2C_TIMEOUT_MS / portTICK_PERIOD_MS); |
| 167 i2c_cmd_link_delete(handle_i2c); | 166 i2c_cmd_link_delete(handle_i2c); |
| 168 break; | 167 break; |
| 169 } | 168 } |
| 170 } | 169 } |
| 171 return 0; | 170 return 0; |
