hal_uart.h

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#ifndef _HAL_UART_H_
#define _HAL_UART_H_
 
#ifdef __cplusplus
extern "C"{
#endif
 
#include "hal_target.h"
#include "ring.h"
 
typedef struct
{
 handle_t *hal_uart_handle; 
 handle_t *drv_uart_handle; 
 bool init_state; 
} hal_uart_handle_register_t;
 
typedef enum
{
 HAL_UART_SUCCESS = 0, 
 HAL_UART_WRONG_PINS, 
 HAL_UART_MODULE_ERROR, 
 HAL_UART_ERROR = (-1) 
} hal_uart_err_t;
 
typedef enum
{
 HAL_UART_IRQ_RX, 
 HAL_UART_IRQ_TX 
} hal_uart_irq_t;
 
typedef enum
{
 HAL_UART_DATA_BITS_7 = 0, 
 HAL_UART_DATA_BITS_8, 
 HAL_UART_DATA_BITS_9, 
 HAL_UART_DATA_BITS_DEFAULT = HAL_UART_DATA_BITS_8 
} hal_uart_data_bits_t;
 
typedef enum
{
 HAL_UART_PARITY_NONE = 0, 
 HAL_UART_PARITY_EVEN, 
 HAL_UART_PARITY_ODD, 
 HAL_UART_PARITY_DEFAULT = HAL_UART_PARITY_NONE 
} hal_uart_parity_t;
 
typedef enum
{
 HAL_UART_STOP_BITS_HALF = 0, 
 HAL_UART_STOP_BITS_ONE, 
 HAL_UART_STOP_BITS_ONE_AND_A_HALF, 
 HAL_UART_STOP_BITS_TWO, 
 HAL_UART_STOP_BITS_DEFAULT = HAL_UART_STOP_BITS_ONE 
} hal_uart_stop_bits_t;
 
typedef struct
{
 hal_pin_name_t tx_pin; 
 hal_pin_name_t rx_pin; 
 uint32_t baud; 
 hal_uart_data_bits_t data_bits; 
 hal_uart_parity_t parity; 
 hal_uart_stop_bits_t stop_bits; 
 ring_buf8_t tx_buf; 
 ring_buf8_t rx_buf; 
 size_t tx_ring_size; 
 size_t rx_ring_size; 
} hal_uart_config_t;
 
typedef struct
{
 handle_t handle; 
 hal_uart_config_t config; 
 uint8_t *tx_ring_buffer; 
 uint8_t *rx_ring_buffer; 
 bool is_tx_irq_enabled; 
 bool is_rx_irq_enabled; 
 bool is_blocking; 
} hal_uart_t;
 
void hal_uart_configure_default( hal_uart_config_t *config );
 
err_t hal_uart_open( handle_t *handle, bool hal_obj_open_state );
 
err_t hal_uart_set_baud( handle_t *handle, hal_uart_config_t *config );
 
err_t hal_uart_set_parity( handle_t *handle, hal_uart_config_t *config );
 
err_t hal_uart_set_stop_bits( handle_t *handle, hal_uart_config_t *config );
 
err_t hal_uart_set_data_bits( handle_t *handle, hal_uart_config_t *config );
 
void hal_uart_set_blocking( handle_t *handle, bool blocking );
 
size_t hal_uart_write( handle_t *handle, uint8_t *buffer, size_t size );
 
size_t hal_uart_print( handle_t *handle, char *text );
 
size_t hal_uart_println( handle_t *handle, char *text );
 
size_t hal_uart_read( handle_t *handle, uint8_t *buffer, size_t size );
 
size_t hal_uart_bytes_available( hal_uart_t *hal_obj );
 
void hal_uart_clear( hal_uart_t *hal_obj );
 
err_t hal_uart_close( handle_t *handle );
 // haluartgroup // halgroup // pergroup
 
#ifdef __cplusplus
}
#endif
 
#endif // _HAL_UART_H_
// ------------------------------------------------------------------------- END