/***
 * @Author: mbw
 * @Date: 2024-08-21 15:50:54
 * @LastEditors: mbw && 1600520629@qq.com
 * @LastEditTime: 2024-09-18 16:54:27
 * @FilePath: \USART1_Interrupt - RT-Thread\RTOS\components\drivers\inc\serial.h
 * @Description:
 * @
 * @Copyright (c) 2024 by ${git_name_email}, All Rights Reserved.
 */
/*
 * File      : serial.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2012-05-15     lgnq         first version.
 * 2012-05-28     bernard      change interfaces
 * 2013-02-20     bernard      use RT_SERIAL_RB_BUFSZ to define
 *                             the size of ring buffer.
 */

#ifndef __SERIAL_H__
#define __SERIAL_H__

#include "rtthread.h"


#define BAUD_RATE_2400    2400
#define BAUD_RATE_4800    4800
#define BAUD_RATE_9600    9600
#define BAUD_RATE_19200   19200
#define BAUD_RATE_38400   38400
#define BAUD_RATE_57600   57600
#define BAUD_RATE_115200  115200
#define BAUD_RATE_230400  230400
#define BAUD_RATE_460800  460800
#define BAUD_RATE_921600  921600
#define BAUD_RATE_2000000 2000000
#define BAUD_RATE_3000000 3000000

#define DATA_BITS_5       5
#define DATA_BITS_6       6
#define DATA_BITS_7       7
#define DATA_BITS_8       8
#define DATA_BITS_9       9

#define STOP_BITS_1       0
#define STOP_BITS_2       1
#define STOP_BITS_3       2
#define STOP_BITS_4       3

#ifdef _WIN32
#include <windows.h>
#else

#define PARITY_NONE 0
#define PARITY_ODD  1
#define PARITY_EVEN 2
#endif

#define BIT_ORDER_LSB              0
#define BIT_ORDER_MSB              1

#define NRZ_NORMAL                 0 /* Non Return to Zero : normal mode */
#define NRZ_INVERTED               1 /* Non Return to Zero : inverted mode */

#define RT_SERIAL_RB_BUFSZ         64
#define RT_SERIAL_FLOWCONTROL_NONE 0

struct serial_configure
{
    rt_uint32_t baud_rate;

    rt_uint32_t data_bits               :4;
    rt_uint32_t stop_bits               :2;
    rt_uint32_t parity                  :2;
    rt_uint32_t bit_order               :1;
    rt_uint32_t invert                  :1;
    rt_uint32_t bufsz                   :16;
    rt_uint32_t reserved                :4;
};


/* Default config for serial_configure structure */
#define RT_SERIAL_CONFIG_DEFAULT      \
    {                                 \
        USART_DIRECTION_SEND_RECEIVE, \
        USART_OVERRUN_DISABLE,        \
        BAUD_RATE_115200,             \
        USART_WORDLENGTH_8BITS,       \
        USART_STOPBITS_1,             \
        USART_PARITY_NONE,            \
        USART_FLOWCONTROL_NONE,       \
        0}

/**
 * uart operators
 */
struct rt_uart_ops
{
    // rt_err_t (*configure)(struct rt_serial_device *serial, struct serial_configure *cfg);
    // rt_err_t (*control)(struct rt_serial_device *serial, int cmd, void *arg);

    // int (*putc)(struct rt_serial_device *serial, char c);
    // int (*getc)(struct rt_serial_device *serial);

    // rt_size_t (*dma_transmit)(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction);
};


/* ciu32 config class */
struct ciu32_uart_config
{
    const char *name;
    USART_t *Instance;
    IRQn_Type irq_type;
};

struct rt_serial_device
{
    struct rt_device          parent;

    const struct rt_uart_ops *ops;
    struct serial_configure   config;

    void *serial_rx;
    void *serial_tx;
};
typedef struct rt_serial_device rt_serial_t;


/* ciu32 uart dirver class */
struct ciu32_uart
{
    struct ciu32_uart_config *config;
    std_usart_init_t Init;
    struct rt_serial_device serial;
};

#endif