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2024-07-12 15:19:46 +08:00
commit 7ca1af130d
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+/**
+ ****************************************************************************************
+ *
+ * @file uart.h
+ *
+ * @brief UART Driver for HCI over UART operation.
+ *
+ * Copyright (C) RivieraWaves 2009-2015
+ *
+ *
+ ****************************************************************************************
+ */
+
+#ifndef _UART_H_
+#define _UART_H_
+
+/**
+ ****************************************************************************************
+ * @defgroup UART UART
+ * @ingroup DRIVERS
+ * @brief UART driver
+ *
+ * @{
+ *
+ ****************************************************************************************
+ */
+
+/*
+ * INCLUDE FILES
+ ****************************************************************************************
+ */
+#include <stdbool.h>          // standard boolean definitions
+#include <stdint.h>           // standard integer functions
+
+
+#define VIRTUAL_UART_H4TL  1
+
+#define UART_FIFO_MAX_COUNT 300
+/*
+ * ENUMERATION DEFINITIONS
+ *****************************************************************************************
+ */
+typedef enum _UART_CMD_STATE
+{
+    UART_CMD_STATE_HEAD,
+    UART_CMD_STATE_OPCODE_ONE,
+    UART_CMD_STATE_OPCODE_TWO,
+    UART_CMD_STATE_LENGTH,
+    UART_CMD_STATE_CMD,
+    UART_CMD_STATE_CMD_FLASH,
+    UART_CMD_STATE_LENGTH_FLASH_LEN0,
+    UART_CMD_STATE_LENGTH_FLASH_LEN1,
+    UART_CMD_STATE_LENGTH_FLASH_SCMD,
+    UART_CMD_STATE_PAYLOAD,
+    UART_CMD_STATE_ERROR_ONE,  
+    UART_CMD_STATE_ERROR_TWO,
+    UART_CMD_STATE_ERROR_THREE,
+    UART_CMD_STATE_ERROR_FOUR,
+    UART_CMD_STATE_PACKET,
+    
+}UART_CMD_STATE;
+
+#if (VIRTUAL_UART_H4TL == 1)
+
+#define HCI_DATA_BUF_SIZE   300
+#define HCI_DATA_TYPE_CMD   0x01
+#define HCI_DATA_TYPE_EVENT 0x02
+
+struct hci_cmd_event_data
+{
+    // call back function pointer
+    void (*callback)(void*,uint16_t);
+    //Dumy data pointer
+    uint8_t data_buff[HCI_DATA_BUF_SIZE];
+    uint32_t data_len;
+};
+
+#endif
+
+
+/* TX and RX channel class holding data used for asynchronous read and write data
+ * transactions
+ */
+
+/// UART TX RX Channel
+struct uart_txrxchannel
+{
+    uint32_t size;
+    uint8_t *bufptr;
+    /// call back function pointer
+    void (*callback) (void*, uint8_t);
+    /// Dummy data pointer returned to callback when operation is over.
+    void* dummy;
+};
+
+/// UART environment structure
+struct uart_env_tag
+{
+    /// tx channel
+    struct uart_txrxchannel tx;
+    /// rx channel
+    struct uart_txrxchannel rx;
+    /// error detect
+    uint8_t errordetect;
+    /// external wakeup
+    bool ext_wakeup;
+    
+    uint8_t *uart_tx_buf;   
+    uint8_t *uart_rx_buf;
+    uint32_t uart_tx_length;
+    uint32_t uart_rx_length;
+    uint8_t uart_tx_enable;   
+    uint8_t uart_rx_enable;
+};
+/*
+ * FUNCTION DECLARATIONS
+ ****************************************************************************************
+ */
+
+#if (BLE_TEST_MODE_SUPPORT)
+/**
+ ****************************************************************************************
+ * @brief Initializes the UART to default values.
+ *****************************************************************************************
+ */
+void uart_init(void);
+#endif // (BLE_TEST_MODE_SUPPORT)
+
+#ifndef CFG_ROM
+/**
+ ****************************************************************************************
+ * @brief Enable UART flow.
+ *****************************************************************************************
+ */
+void uart_flow_on(void);
+
+/**
+ ****************************************************************************************
+ * @brief Disable UART flow.
+ *****************************************************************************************
+ */
+bool uart_flow_off(void);
+#endif //CFG_ROM
+
+/**
+ ****************************************************************************************
+ * @brief Finish current UART transfers
+ *****************************************************************************************
+ */
+void uart_finish_transfers(void);
+
+/**
+ ****************************************************************************************
+ * @brief Starts a data reception.
+ *
+ * @param[out] bufptr   Pointer to the RX buffer
+ * @param[in]  size     Size of the expected reception
+ * @param[in]  callback Pointer to the function called back when transfer finished
+ * @param[in]  dummy    Dummy data pointer returned to callback when reception is finished
+ *****************************************************************************************
+ */
+void uart_read(uint8_t *bufptr, uint32_t size, void (*callback) (void*, uint8_t), void* dummy);
+
+/**
+ ****************************************************************************************
+ * @brief Starts a data transmission.
+ *
+ * @param[in] bufptr   Pointer to the TX buffer
+ * @param[in] size     Size of the transmission
+ * @param[in] callback Pointer to the function called back when transfer finished
+ * @param[in] dummy    Dummy data pointer returned to callback when transmission is finished
+ *****************************************************************************************
+ */
+void uart_write(uint8_t *bufptr, uint32_t size, void (*callback) (void*, uint8_t), void* dummy);
+
+#if defined(CFG_ROM)
+/**
+ ****************************************************************************************
+ * @brief Poll UART on reception and transmission.
+ *
+ * This function is used to poll UART for reception and transmission.
+ * It is used when IRQ are not used to detect incoming bytes.
+ *****************************************************************************************
+ */
+void uart_poll(void);
+#endif //CFG_ROM
+
+/**
+ ****************************************************************************************
+ * @brief Serves the data transfer interrupt requests.
+ *
+ * It clears the requests and executes the appropriate callback function.
+ *****************************************************************************************
+ */
+void uart_isr(void);
+
+void hci_data_init(uint8_t type);
+void host_get_event_cbReg(void(*callback)(void*,uint16_t));
+void host_send_cmd(uint8_t *bufptr,uint16_t length);
+void uart_h4tl_data_switch(void);
+void uart_send(void *buff,uint16_t len);
+
+
+
+
+/// @} UART
+#endif /* _UART_H_ */