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/*
* Copyright (c) 2020-2020, BLUETRUM Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef AB32VG1_HAL_UART_H__
#define AB32VG1_HAL_UART_H__
#include "ab32vg1_hal_def.h"
/* Exported types */
/** @defgroup UART_Exported_Types UART Exported Types
* @{
*/
/**
* @brief UART Init Structure definition
*/
struct uart_init
{
uint32_t baud; /*!< This member configures the UART communication baud rate.
Baud Rate Register[31:16] is used to configure the rx rate.
Baud Rate Register[15: 0] is used to configure the tx rate.
The baud rate register is computed using the following formula:
UARTBAUD = Fsys_clock/BaudRate-1
for example: UARTBAUD= (26000000/2)/baud-1 */
uint8_t word_len; /*!< Specifies the number of data bits transmitted or received in a frame.
This parameter can be a value of @ref UARTEx_Word_Length. */
uint8_t stop_bits; /*!< Specifies the number of stop bits transmitted.
This parameter can be a value of @ref UART_Stop_Bits. */
uint8_t mode; /*!< Specifies whether the receive or one line mode is enabled or disabled.
This parameter can be a value of @ref UART_Mode. */
};
/**
* @brief UART handle struction definition
*
*/
struct uart_handle
{
hal_sfr_t instance;
struct uart_init init;
};
/**
* @}
*/
/* Exported constants */
/**
* @defgroup UARTEx_Word_Length UART Word Length
* @{
*/
#define UART_WORDLENGTH_8B (0x00u) /*!< 8 bit long UART frame */
#define UART_WORDLENGTH_9B (0x01u) /*!< 9 bit long UART frame */
/**
* @}
*/
/**
* @defgroup UART_Stop_Bits UART Number of Stop Bits
* @{
*/
#define UART_STOPBITS_1 (0x00u) /*!< UART frame with 1 stop bit */
#define UART_STOPBITS_2 (0x01u) /*!< UART frame with 2 stop bit */
/**
* @}
*/
/** @defgroup UART_Mode UART Transfer Mode
* @{
*/
#define UART_MODE_TX (0x00u) /*!< TX mode */
#define UART_MODE_TX_RX (0x01u) /*!< RX and TX mode */
#define UART_MODE_1LINE (0x02u) /*!< oneline mode */
/**
* @}
*/
#define UART_FLAG_RXPND (BIT(9)) /*!< RX one byte finish flag */
#define UART_FLAG_TXPND (BIT(8)) /*!< TX one byte finish flag */
#define UART_MODULE_ENABLE (BIT(0)) /*!< UART enable bit */
#define UART_BIT9_ENABLE (BIT(1)) /*!< BIT9 enable bit */
#define UART_RXIT_ENABLE (BIT(2)) /*!< Receive interrupt enable bit */
#define UART_TXIT_ENABLE (BIT(3)) /*!< Transmit interrupt enable bit */
#define UART_SB2_ENABLE (BIT(4)) /*!< Two stop bit enable bit */
#define UART_CLK_SRC1 (BIT(5)) /*!< Clock source select bit */
#define UART_1LINE_ENABLE (BIT(6)) /*!< One-Line mode enable bit */
#define UART_RX_ENABLE (BIT(7)) /*!< Receive enable bit */
#define UART0N (0x00u) /*!< Number of UART0 */
#define UART1N (0x01u) /*!< Number of UART1 */
#define UART2N (0x02u) /*!< Number of UART2 */
#define UART0_BASE ((hal_sfr_t)(&UART0CON))
#define UART1_BASE ((hal_sfr_t)(&UART1CON))
#define UART2_BASE ((hal_sfr_t)(&UART2CON))
/* Exported function */
/** @addtogroup UART_Exported_Functions UART Exported Functions
* @{
*/
/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
* @{
*/
/* Initialization functions */
hal_error_t hal_uart_init(struct uart_handle *huart);
void hal_uart_deinit(hal_sfr_t uartx);
void hal_uart_mspinit(struct uart_handle *huart);
/**
* @}
*/
void hal_uart_control(hal_sfr_t uartx, uint32_t cntl, uint32_t param);
void hal_uart_write(hal_sfr_t uartx, uint8_t data);
uint8_t hal_uart_read(hal_sfr_t uartx);
uint32_t hal_uart_getflag(hal_sfr_t uartx, uint32_t flag);
void hal_uart_clrflag(hal_sfr_t uartx, uint32_t flag);
/**
* @}
*/
/* Private function */
/** @addtogroup UART_Private_Functions UART Private Functions
* @{
*/
void uart_config_all(struct uart_handle *huart);
/**
* @}
*/
#endif
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