80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#include "tos_k.h"
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#include "tos_hal.h"
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#include "stm32l4xx_hal.h"
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#include "usart.h"
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__API__ int tos_hal_uart_init(hal_uart_t *uart, hal_uart_port_t port)
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{
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if (!uart) {
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return -1;
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}
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if (port == HAL_UART_PORT_0) {
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uart->private_uart = &hlpuart1;
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MX_LPUART1_UART_Init();
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} else if (port == HAL_UART_PORT_1) {
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uart->private_uart = &huart1;
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MX_USART1_UART_Init();
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} else if (port == HAL_UART_PORT_2) {
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uart->private_uart = &huart2;
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MX_USART2_UART_Init();
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} else if (port == HAL_UART_PORT_3) {
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uart->private_uart = &huart3;
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MX_USART3_UART_Init();
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}
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return 0;
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}
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__API__ int tos_hal_uart_write(hal_uart_t *uart, const uint8_t *buf, size_t size, uint32_t timeout)
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{
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HAL_StatusTypeDef hal_status;
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UART_HandleTypeDef *uart_handle;
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if (!uart || !buf) {
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return -1;
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}
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if (!uart->private_uart) {
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return -1;
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}
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uart_handle = (UART_HandleTypeDef *)uart->private_uart;
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hal_status = HAL_UART_Transmit(uart_handle, (uint8_t *)buf, size, timeout);
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if (hal_status != HAL_OK) {
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return -1;
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}
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return 0;
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}
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__API__ int tos_hal_uart_read(hal_uart_t *uart, const uint8_t *buf, size_t size, uint32_t timeout)
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{
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return 0;
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}
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__API__ int tos_hal_uart_deinit(hal_uart_t *uart)
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{
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HAL_StatusTypeDef hal_status;
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UART_HandleTypeDef *uart_handle;
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if (!uart) {
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return -1;
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}
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if (!uart->private_uart) {
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return -1;
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}
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uart_handle = (UART_HandleTypeDef *)uart->private_uart;
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hal_status = HAL_UART_DeInit(uart_handle);
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HAL_UART_MspDeInit(uart_handle);
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if (hal_status != HAL_OK) {
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return -1;
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}
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return 0;
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}
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