Private function prototypes -----------------------------------------------*/ Private functions ---------------------------------------------------------*/ / * @brief * Initialize LEUART device * * @details * * @note * * @param[in] dev * Pointer to device descriptor * * @return * Error code ******************************************************************************/
| 69 | * Error code |
| 70 | ******************************************************************************/ |
| 71 | static rt_err_t rt_leuart_init (rt_device_t dev) |
| 72 | { |
| 73 | struct efm32_leuart_device_t *leuart; |
| 74 | |
| 75 | leuart = (struct efm32_leuart_device_t *)(dev->user_data); |
| 76 | |
| 77 | if (!(dev->flag & RT_DEVICE_FLAG_ACTIVATED)) |
| 78 | { |
| 79 | if (dev->flag & RT_DEVICE_FLAG_DMA_TX) |
| 80 | { |
| 81 | struct efm32_leuart_dma_mode_t *dma_tx; |
| 82 | |
| 83 | dma_tx = (struct efm32_leuart_dma_mode_t *)(leuart->tx_mode); |
| 84 | |
| 85 | leuart->state |= LEUART_STATE_RX_BUSY; |
| 86 | } |
| 87 | |
| 88 | if (dev->flag & RT_DEVICE_FLAG_INT_RX) |
| 89 | { |
| 90 | struct efm32_leuart_int_mode_t *int_rx; |
| 91 | |
| 92 | int_rx = (struct efm32_leuart_int_mode_t *)(leuart->rx_mode); |
| 93 | |
| 94 | int_rx->data_ptr = RT_NULL; |
| 95 | } |
| 96 | |
| 97 | /* Enable LEUART */ |
| 98 | LEUART_Enable(leuart->leuart_device, leuartEnable); |
| 99 | |
| 100 | dev->flag |= RT_DEVICE_FLAG_ACTIVATED; |
| 101 | } |
| 102 | |
| 103 | return RT_EOK; |
| 104 | } |
| 105 | |
| 106 | /***************************************************************************//** |
| 107 | * @brief |
nothing calls this directly
no test coverage detected