rt-thread-official/bsp/synopsys/emsk_em9d/drivers/dw_uart_obj.c

/*
 * Copyright (c) 2018, Synopsys, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#include "inc/arc/arc.h"
#include "inc/arc/arc_builtin.h"
#include "inc/embARC_toolchain.h"
#include "inc/embARC_error.h"

#include "inc/arc/arc_exception.h"
#include "device/designware/uart/dw_uart.h"
#include "dw_uart_obj.h"

#include "emsk_hardware.h"

#define DW_UART_FIFO_LEN    32

/**
 * \name    EMSK DesignWare UART 0 Object Instantiation
 * @{
 */
#if (USE_DW_UART_0)
static void dw_uart_0_isr(void *ptr);
#define DW_UART_0_RELBASE   (REL_REGBASE_UART0) /*!< designware uart 0 relative baseaddr */
#define DW_UART_0_INTNO     (INTNO_UART0)       /*!< designware uart 0 interrupt number  */

DEV_UART        dw_uart_0;          /*!< designware uart object */
DW_UART_CTRL    dw_uart_0_ctrl = {          /*!< designware uart 0 ctrl */
    0, CLK_BUS_APB, DW_UART_0_INTNO, (INT_HANDLER)dw_uart_0_isr,
    DW_UART_FIFO_LEN, DW_UART_FIFO_LEN, 0
};

/** designware uart 0 open */
static int32_t dw_uart_0_open (uint32_t baud)
{
    return dw_uart_open(&dw_uart_0, baud);
}
/** designware uart 0 close */
static int32_t dw_uart_0_close (void)
{
    return dw_uart_close(&dw_uart_0);
}
/** designware uart 0 control */
static int32_t dw_uart_0_control (uint32_t ctrl_cmd, void *param)
{
    return dw_uart_control(&dw_uart_0, ctrl_cmd, param);
}
/** designware uart 0 write */
static int32_t dw_uart_0_write (const void *data, uint32_t len)
{
    return dw_uart_write(&dw_uart_0, data, len);
}
/** designware uart 0 close */
static int32_t dw_uart_0_read (void *data, uint32_t len)
{
    return dw_uart_read(&dw_uart_0, data, len);
}
/** designware uart 0 interrupt rountine */
static void dw_uart_0_isr(void *ptr)
{
    dw_uart_isr(&dw_uart_0, ptr);
}
/** install designware uart 0 to system */
static void dw_uart_0_install(void)
{
    uint32_t uart_abs_base = 0;
    DEV_UART *dw_uart_ptr = &dw_uart_0;
    DEV_UART_INFO *dw_uart_info_ptr = &(dw_uart_0.uart_info);
    DW_UART_CTRL *dw_uart_ctrl_ptr = &dw_uart_0_ctrl;

    /**
     * get absolute designware base address
     */
    uart_abs_base = (uint32_t)PERIPHERAL_BASE + DW_UART_0_RELBASE;
    dw_uart_ctrl_ptr->dw_uart_regbase = uart_abs_base;

    /** uart info init */
    dw_uart_info_ptr->uart_ctrl = (void *)dw_uart_ctrl_ptr;
    dw_uart_info_ptr->opn_cnt = 0;
    dw_uart_info_ptr->status = 0;
    dw_uart_info_ptr->baudrate = UART_BAUDRATE_115200;  /* default 115200bps */

    /** uart dev init */
    dw_uart_ptr->uart_open = dw_uart_0_open;
    dw_uart_ptr->uart_close = dw_uart_0_close;
    dw_uart_ptr->uart_control = dw_uart_0_control;
    dw_uart_ptr->uart_write = dw_uart_0_write;
    dw_uart_ptr->uart_read = dw_uart_0_read;

}
#endif /* USE_DW_UART_0 */
/** @} end of name */

/**
 * \name    EMSK DesignWare UART 1 Object Instantiation
 * @{
 */
#if (USE_DW_UART_1)
static void dw_uart_1_isr(void *ptr);
#define DW_UART_1_RELBASE   (REL_REGBASE_UART1) /*!< designware uart 1 relative baseaddr */
#define DW_UART_1_INTNO     (INTNO_UART1)       /*!< designware uart 1 interrupt number  */

DEV_UART        dw_uart_1;          /*!< designware uart 1 object */
DW_UART_CTRL    dw_uart_1_ctrl = {          /*!< designware uart 1 ctrl */
    0, CLK_BUS_APB, DW_UART_1_INTNO, (INT_HANDLER)dw_uart_1_isr,
    DW_UART_FIFO_LEN, DW_UART_FIFO_LEN, 0
};

/** designware uart 1 open */
static int32_t dw_uart_1_open (uint32_t baud)
{
    return dw_uart_open(&dw_uart_1, baud);
}
/** designware uart 1 close */
static int32_t dw_uart_1_close (void)
{
    return dw_uart_close(&dw_uart_1);
}
/** designware uart 1 control */
static int32_t dw_uart_1_control (uint32_t ctrl_cmd, void *param)
{
    return dw_uart_control(&dw_uart_1, ctrl_cmd, param);
}
/** designware uart 1 write */
static int32_t dw_uart_1_write (const void *data, uint32_t len)
{
    return dw_uart_write(&dw_uart_1, data, len);
}
/** designware uart 1 close */
static int32_t dw_uart_1_read (void *data, uint32_t len)
{
    return dw_uart_read(&dw_uart_1, data, len);
}
/** designware uart 1 interrupt routine */
static void dw_uart_1_isr(void *ptr)
{
    dw_uart_isr(&dw_uart_1, ptr);
}
/** install designware uart 1 to system */
static void dw_uart_1_install(void)
{
    uint32_t uart_abs_base = 0;
    DEV_UART *dw_uart_ptr = &dw_uart_1;
    DEV_UART_INFO *dw_uart_info_ptr = &(dw_uart_1.uart_info);
    DW_UART_CTRL *dw_uart_ctrl_ptr = &dw_uart_1_ctrl;

    /**
     * get absolute designware base address
     */
    uart_abs_base = (uint32_t)PERIPHERAL_BASE + DW_UART_1_RELBASE;
    dw_uart_ctrl_ptr->dw_uart_regbase = uart_abs_base;

    /** uart info init */
    dw_uart_info_ptr->uart_ctrl = (void *)dw_uart_ctrl_ptr;
    dw_uart_info_ptr->opn_cnt = 0;
    dw_uart_info_ptr->status = 0;
    dw_uart_info_ptr->baudrate = UART_BAUDRATE_115200;  /* default 115200bps */

    /** uart dev init */
    dw_uart_ptr->uart_open = dw_uart_1_open;
    dw_uart_ptr->uart_close = dw_uart_1_close;
    dw_uart_ptr->uart_control = dw_uart_1_control;
    dw_uart_ptr->uart_write = dw_uart_1_write;
    dw_uart_ptr->uart_read = dw_uart_1_read;
}
#endif /* USE_DW_UART_1 */
/** @} end of name */

/** get one designware device structure */
DEV_UART_PTR uart_get_dev(int32_t uart_id)
{
    static uint32_t install_flag = 0;

    /* intall device objects */
    if (install_flag == 0) {
        install_flag = 1;
        dw_uart_all_install();
    }

    switch (uart_id) {
#if (USE_DW_UART_0)
        case DW_UART_0_ID:
            return &dw_uart_0;
            break;
#endif
#if (USE_DW_UART_1)
        case DW_UART_1_ID:
            return &dw_uart_1;
            break;
#endif
        default:
            break;
    }
    return NULL;
}

/**
 * \brief   install all uart objects
 * \note    \b MUST be called during system init
 */
void dw_uart_all_install(void)
{
#if (USE_DW_UART_0)
    dw_uart_0_install();
#endif
#if (USE_DW_UART_1)
    dw_uart_1_install();
#endif
}