esp8266: New port of Micro Python to ESP8266 wifi module.

1 files changed, 96 insertions, 0 deletions

diff --git a/esp8266/uart.h b/esp8266/uart.h
new file mode 100644
index 0000000000..ce1438baf3
--- /dev/null
+++ b/esp8266/uart.h
@@ -0,0 +1,96 @@
+#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);
+
+#endif // _INCLUDED_UART_H_