77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
|
#ifndef __RT_HW_SERIAL_H__
|
||
|
|
#define __RT_HW_SERIAL_H__
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <rtthread.h>
|
||
|
|
|
||
|
|
#include "at91sam926x.h"
|
||
|
|
|
||
|
|
#define RXRDY 0x01
|
||
|
|
#define TXRDY (1 << 1)
|
||
|
|
#define BPS 115200 /* serial baudrate */
|
||
|
|
|
||
|
|
#define UART_RX_BUFFER_SIZE 64
|
||
|
|
#define UART_TX_BUFFER_SIZE 64
|
||
|
|
|
||
|
|
struct serial_int_rx
|
||
|
|
{
|
||
|
|
rt_uint8_t rx_buffer[UART_RX_BUFFER_SIZE];
|
||
|
|
rt_uint32_t read_index, save_index;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct serial_int_tx
|
||
|
|
{
|
||
|
|
rt_uint8_t tx_buffer[UART_TX_BUFFER_SIZE];
|
||
|
|
rt_uint32_t write_index, save_index;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct uartport
|
||
|
|
{
|
||
|
|
/* USART register offsets */
|
||
|
|
volatile rt_uint32_t USART_CR;
|
||
|
|
volatile rt_uint32_t USART_MR;
|
||
|
|
volatile rt_uint32_t USART_IER;
|
||
|
|
volatile rt_uint32_t USART_IDR;
|
||
|
|
volatile rt_uint32_t USART_IMR;
|
||
|
|
volatile rt_uint32_t USART_CSR;
|
||
|
|
volatile rt_uint32_t USART_RHR;
|
||
|
|
volatile rt_uint32_t USART_THR;
|
||
|
|
volatile rt_uint32_t USART_BRGR;
|
||
|
|
volatile rt_uint32_t USART_RTOR;
|
||
|
|
volatile rt_uint32_t USART_TTGR;
|
||
|
|
volatile rt_uint32_t reseverd0[5];
|
||
|
|
volatile rt_uint32_t USART_FIDI;
|
||
|
|
volatile rt_uint32_t USART_NER;
|
||
|
|
volatile rt_uint32_t USART_XXR;
|
||
|
|
volatile rt_uint32_t USART_IFR;
|
||
|
|
volatile rt_uint32_t reserved1[44];
|
||
|
|
volatile rt_uint32_t USART_RPR;
|
||
|
|
volatile rt_uint32_t USART_RCR;
|
||
|
|
volatile rt_uint32_t USART_TPR;
|
||
|
|
volatile rt_uint32_t USART_TCR;
|
||
|
|
volatile rt_uint32_t USART_RNPR;
|
||
|
|
volatile rt_uint32_t USART_RNCR;
|
||
|
|
volatile rt_uint32_t USART_TNPR;
|
||
|
|
volatile rt_uint32_t USART_TNCR;
|
||
|
|
volatile rt_uint32_t USART_PTCR;
|
||
|
|
volatile rt_uint32_t USART_PTSR;
|
||
|
|
}uartport;
|
||
|
|
|
||
|
|
|
||
|
|
struct serial_device
|
||
|
|
{
|
||
|
|
uartport* uart_device;
|
||
|
|
|
||
|
|
/* rx structure */
|
||
|
|
struct serial_int_rx* int_rx;
|
||
|
|
|
||
|
|
/* tx structure */
|
||
|
|
struct serial_int_tx* int_tx;
|
||
|
|
};
|
||
|
|
|
||
|
|
rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct serial_device *serial);
|
||
|
|
|
||
|
|
void rt_hw_serial_isr(rt_device_t device);
|
||
|
|
|
||
|
|
#endif
|