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 parse-bytecode

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uart.h

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#ifndef _INCLUDED_UART_H_

#define _INCLUDED_UART_H_

#define UART0 (0)

#define UART1 (1)

typedef enum {

UART_FIVE_BITS = 0x0,

UART_SIX_BITS = 0x1,

UART_SEVEN_BITS = 0x2,

UART_EIGHT_BITS = 0x3

} UartBitsNum4Char;

typedef enum {

UART_ONE_STOP_BIT = 0,

UART_ONE_HALF_STOP_BIT = BIT2,

UART_TWO_STOP_BIT = BIT2

} UartStopBitsNum;

typedef enum {

UART_NONE_BITS = 0,

UART_ODD_BITS = 0,

UART_EVEN_BITS = BIT4

} UartParityMode;

typedef enum {

UART_STICK_PARITY_DIS = 0,

UART_STICK_PARITY_EN = BIT3 | BIT5

} UartExistParity;

typedef enum {

UART_BIT_RATE_9600 = 9600,

UART_BIT_RATE_19200 = 19200,

UART_BIT_RATE_38400 = 38400,

UART_BIT_RATE_57600 = 57600,

UART_BIT_RATE_74880 = 74880,

UART_BIT_RATE_115200 = 115200,

UART_BIT_RATE_230400 = 230400,

UART_BIT_RATE_256000 = 256000,

UART_BIT_RATE_460800 = 460800,

UART_BIT_RATE_921600 = 921600

} UartBautRate;

typedef enum {

UART_NONE_CTRL,

UART_HARDWARE_CTRL,

UART_XON_XOFF_CTRL

} UartFlowCtrl;

typedef enum {

UART_EMPTY,

UART_UNDER_WRITE,

UART_WRITE_OVER

} RcvMsgBuffState;

typedef struct {

uint32 RcvBuffSize;

uint8 *pRcvMsgBuff;

uint8 *pWritePos;

uint8 *pReadPos;

uint8 TrigLvl; //JLU: may need to pad

RcvMsgBuffState BuffState;

} RcvMsgBuff;

typedef struct {

uint32 TrxBuffSize;

uint8 *pTrxBuff;

} TrxMsgBuff;

typedef enum {

UART_BAUD_RATE_DET,

UART_WAIT_SYNC_FRM,

UART_SRCH_MSG_HEAD,

UART_RCV_MSG_BODY,

UART_RCV_ESC_CHAR,

} RcvMsgState;

typedef struct {

UartBautRate baut_rate;

UartBitsNum4Char data_bits;

UartExistParity exist_parity;

UartParityMode parity; // chip size in byte

UartStopBitsNum stop_bits;

UartFlowCtrl flow_ctrl;

RcvMsgBuff rcv_buff;

TrxMsgBuff trx_buff;

RcvMsgState rcv_state;

int received;

int buff_uart_no; //indicate which uart use tx/rx buffer

} UartDevice;

void uart_init(UartBautRate uart0_br, UartBautRate uart1_br);

int uart0_rx(void);

void uart_tx_one_char(uint8 uart, uint8 TxChar);

void uart_flush(uint8 uart);

void uart_os_config(int uart);

#endif // _INCLUDED_UART_H_