xref: /btstack/src/btstack_uart_block.h (revision 084ad01c1a9e12f0da3d2691f48405bf30ddf87a)

/*
 * Copyright (C) 2016 BlueKitchen GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 4. Any redistribution, use, or modification is done solely for
 *    personal benefit and not for any commercial purpose or for
 *    monetary gain.
 *
 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * Please inquire about commercial licensing options at
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/*
 *  btstack_uart_block.h
 *
 *  Common code to access serial port via asynchronous block read/write commands
 *
 */

#ifndef __BTSTACK_UART_BLOCK_H
#define __BTSTACK_UART_BLOCK_H

#include <stdint.h>

typedef struct {
    uint32_t   baudrate;
    int        flowcontrol;
    const char *device_name;
} btstack_uart_config_t;

typedef struct {
    /**
     * init transport
     * @param uart_config
     */
    int (*init)(const btstack_uart_config_t * uart_config);

    /**
     * open transport connection
     */
    int (*open)(void);

    /**
     * close transport connection
     */
    int (*close)(void);

    /**
     * set callback for block received
     */
    void (*set_block_received)(void (*block_handler)(void));

    /**
     * set callback for sent
     */
    void (*set_block_sent)(void (*block_handler)(void));

    /**
     * set baudrate
     */
    int (*set_baudrate)(uint32_t baudrate);

    /**
     * set parity
     */
    int  (*set_parity)(int parity);

    /**
     * receive block
     */
    void (*receive_block)(uint8_t *buffer, uint16_t len);

    /**
     * send block
     */
    void (*send_block)(const uint8_t *buffer, uint16_t length);

    // void hal_uart_dma_set_sleep(uint8_t sleep);
    // void hal_uart_dma_set_csr_irq_handler( void (*csr_irq_handler)(void));

} btstack_uart_block_t;

// common implementations
const btstack_uart_block_t * btstack_uart_block_posix_instance(void);
const btstack_uart_block_t * btstack_uart_block_embedded_instance(void);

#endif