f28f8ba568
This was done to allow greatly granularity when deciding what functionality is built into each board's build. For example, this way pulseio can be omitted to allow for something else such as touchio.
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
#ifndef _INCLUDED_UART_H_
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#define _INCLUDED_UART_H_
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#include <eagle_soc.h>
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#define UART0 (0)
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#define UART1 (1)
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typedef enum {
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UART_FIVE_BITS = 0x0,
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UART_SIX_BITS = 0x1,
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UART_SEVEN_BITS = 0x2,
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UART_EIGHT_BITS = 0x3
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} UartBitsNum4Char;
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typedef enum {
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UART_ONE_STOP_BIT = 0,
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UART_ONE_HALF_STOP_BIT = BIT2,
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UART_TWO_STOP_BIT = BIT2
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} UartStopBitsNum;
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typedef enum {
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UART_NONE_BITS = 0,
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UART_ODD_BITS = BIT0,
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UART_EVEN_BITS = 0
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} UartParityMode;
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typedef enum {
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UART_STICK_PARITY_DIS = 0,
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UART_STICK_PARITY_EN = BIT1
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} UartExistParity;
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typedef enum {
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UART_BIT_RATE_9600 = 9600,
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UART_BIT_RATE_19200 = 19200,
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UART_BIT_RATE_38400 = 38400,
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UART_BIT_RATE_57600 = 57600,
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UART_BIT_RATE_74880 = 74880,
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UART_BIT_RATE_115200 = 115200,
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UART_BIT_RATE_230400 = 230400,
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UART_BIT_RATE_256000 = 256000,
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UART_BIT_RATE_460800 = 460800,
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UART_BIT_RATE_921600 = 921600
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} UartBautRate;
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typedef enum {
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UART_NONE_CTRL,
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UART_HARDWARE_CTRL,
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UART_XON_XOFF_CTRL
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} UartFlowCtrl;
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typedef enum {
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UART_EMPTY,
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UART_UNDER_WRITE,
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UART_WRITE_OVER
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} RcvMsgBuffState;
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typedef struct {
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uint32 RcvBuffSize;
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uint8 *pRcvMsgBuff;
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uint8 *pWritePos;
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uint8 *pReadPos;
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uint8 TrigLvl; //JLU: may need to pad
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RcvMsgBuffState BuffState;
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} RcvMsgBuff;
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typedef struct {
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uint32 TrxBuffSize;
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uint8 *pTrxBuff;
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} TrxMsgBuff;
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typedef enum {
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UART_BAUD_RATE_DET,
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UART_WAIT_SYNC_FRM,
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UART_SRCH_MSG_HEAD,
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UART_RCV_MSG_BODY,
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UART_RCV_ESC_CHAR,
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} RcvMsgState;
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typedef struct {
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UartBautRate baut_rate;
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UartBitsNum4Char data_bits;
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UartExistParity exist_parity;
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UartParityMode parity; // chip size in byte
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UartStopBitsNum stop_bits;
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UartFlowCtrl flow_ctrl;
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RcvMsgBuff rcv_buff;
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TrxMsgBuff trx_buff;
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RcvMsgState rcv_state;
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int received;
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int buff_uart_no; //indicate which uart use tx/rx buffer
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} UartDevice;
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void uart_init(UartBautRate uart0_br, UartBautRate uart1_br);
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int uart0_rx(void);
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bool uart_rx_wait(uint32_t timeout_us);
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int uart_rx_char(void);
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void uart_tx_one_char(uint8 uart, uint8 TxChar);
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void uart_flush(uint8 uart);
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void uart_os_config(int uart);
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void uart_setup(uint8 uart);
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#endif // _INCLUDED_UART_H_
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