/*
 * File      : stm32_sdio.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006 - 2018, 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
 * 2018-6-22      tyx          first
 */

#ifndef __STM32_SDIO_H__
#define __STM32_SDIO_H__

#include <rtthread.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef SDIO_BASE_ADDRESS
#define SDIO_BASE_ADDRESS                   (0x40012800U)
#endif

#ifndef SDIO_CLOCK_FREQ
#define SDIO_CLOCK_FREQ                     (48U * 1000 * 1000)
#endif

#ifndef SDIO_BUFF_SIZE
#define SDIO_BUFF_SIZE   (4096)
#endif

#ifndef SDIO_ALIGN
#define SDIO_ALIGN       (32)
#endif

#ifndef SDIO_MAX_FREQ
#define SDIO_MAX_FREQ    (24 * 1000 * 1000)
#endif

#define HW_SDIO_IT_CCRCFAIL                    (0x01U << 0)
#define HW_SDIO_IT_DCRCFAIL                    (0x01U << 1)
#define HW_SDIO_IT_CTIMEOUT                    (0x01U << 2)
#define HW_SDIO_IT_DTIMEOUT                    (0x01U << 3)
#define HW_SDIO_IT_TXUNDERR                    (0x01U << 4)
#define HW_SDIO_IT_RXOVERR                     (0x01U << 5)
#define HW_SDIO_IT_CMDREND                     (0x01U << 6)
#define HW_SDIO_IT_CMDSENT                     (0x01U << 7)
#define HW_SDIO_IT_DATAEND                     (0x01U << 8)
#define HW_SDIO_IT_STBITERR                    (0x01U << 9)
#define HW_SDIO_IT_DBCKEND                     (0x01U << 10)
#define HW_SDIO_IT_CMDACT                      (0x01U << 11)
#define HW_SDIO_IT_TXACT                       (0x01U << 12)
#define HW_SDIO_IT_RXACT                       (0x01U << 13)
#define HW_SDIO_IT_TXFIFOHE                    (0x01U << 14)
#define HW_SDIO_IT_RXFIFOHF                    (0x01U << 15)
#define HW_SDIO_IT_TXFIFOF                     (0x01U << 16)
#define HW_SDIO_IT_RXFIFOF                     (0x01U << 17)
#define HW_SDIO_IT_TXFIFOE                     (0x01U << 18)
#define HW_SDIO_IT_RXFIFOE                     (0x01U << 19)
#define HW_SDIO_IT_TXDAVL                      (0x01U << 20)
#define HW_SDIO_IT_RXDAVL                      (0x01U << 21)
#define HW_SDIO_IT_SDIOIT                      (0x01U << 22)

#define HW_SDIO_ERRORS \
    (HW_SDIO_IT_CCRCFAIL | HW_SDIO_IT_CTIMEOUT | \
     HW_SDIO_IT_DCRCFAIL | HW_SDIO_IT_DTIMEOUT | \
     HW_SDIO_IT_RXOVERR  | HW_SDIO_IT_TXUNDERR)

#define HW_SDIO_POWER_OFF                      (0x00U)
#define HW_SDIO_POWER_UP                       (0x02U)
#define HW_SDIO_POWER_ON                       (0x03U)

#define HW_SDIO_FLOW_ENABLE                    (0x01U << 14)
#define HW_SDIO_BUSWIDE_1B                     (0x00U << 11)
#define HW_SDIO_BUSWIDE_4B                     (0x01U << 11)
#define HW_SDIO_BUSWIDE_8B                     (0x02U << 11)
#define HW_SDIO_BYPASS_ENABLE                  (0x01U << 10)
#define HW_SDIO_IDLE_ENABLE                    (0x01U << 9)
#define HW_SDIO_CLK_ENABLE                     (0x01U << 8)

#define HW_SDIO_SUSPEND_CMD                    (0x01U << 11)
#define HW_SDIO_CPSM_ENABLE                    (0x01U << 10)
#define HW_SDIO_WAIT_END                       (0x01U << 9)
#define HW_SDIO_WAIT_INT                       (0x01U << 8)
#define HW_SDIO_RESPONSE_NO                    (0x00U << 6)
#define HW_SDIO_RESPONSE_SHORT                 (0x01U << 6)
#define HW_SDIO_RESPONSE_LONG                  (0x03U << 6)

#define HW_SDIO_DATA_LEN_MASK                  (0x01FFFFFFU)

#define HW_SDIO_IO_ENABLE                      (0x01U << 11)
#define HW_SDIO_RWMOD_CK                       (0x01U << 10)
#define HW_SDIO_RWSTOP_ENABLE                  (0x01U << 9)
#define HW_SDIO_RWSTART_ENABLE                 (0x01U << 8)
#define HW_SDIO_DBLOCKSIZE_1                   (0x00U << 4)
#define HW_SDIO_DBLOCKSIZE_2                   (0x01U << 4)
#define HW_SDIO_DBLOCKSIZE_4                   (0x02U << 4)
#define HW_SDIO_DBLOCKSIZE_8                   (0x03U << 4)
#define HW_SDIO_DBLOCKSIZE_16                  (0x04U << 4)
#define HW_SDIO_DBLOCKSIZE_32                  (0x05U << 4)
#define HW_SDIO_DBLOCKSIZE_64                  (0x06U << 4)
#define HW_SDIO_DBLOCKSIZE_128                 (0x07U << 4)
#define HW_SDIO_DBLOCKSIZE_256                 (0x08U << 4)
#define HW_SDIO_DBLOCKSIZE_512                 (0x09U << 4)
#define HW_SDIO_DBLOCKSIZE_1024                (0x0AU << 4)
#define HW_SDIO_DBLOCKSIZE_2048                (0x0BU << 4)
#define HW_SDIO_DBLOCKSIZE_4096                (0x0CU << 4)
#define HW_SDIO_DBLOCKSIZE_8192                (0x0DU << 4)
#define HW_SDIO_DBLOCKSIZE_16384               (0x0EU << 4)
#define HW_SDIO_DMA_ENABLE                     (0x01U << 3)
#define HW_SDIO_STREAM_ENABLE                  (0x01U << 2)
#define HW_SDIO_TO_HOST                        (0x01U << 1)
#define HW_SDIO_DPSM_ENABLE                    (0x01U << 0)

#define HW_SDIO_DATATIMEOUT                    (0xF0000000U)

struct stm32_sdio
{
    volatile rt_uint32_t power;
    volatile rt_uint32_t clkcr;
    volatile rt_uint32_t arg;
    volatile rt_uint32_t cmd;
    volatile rt_uint32_t respcmd;
    volatile rt_uint32_t resp1;
    volatile rt_uint32_t resp2;
    volatile rt_uint32_t resp3;
    volatile rt_uint32_t resp4;
    volatile rt_uint32_t dtimer;
    volatile rt_uint32_t dlen;
    volatile rt_uint32_t dctrl;
    volatile rt_uint32_t dcount;
    volatile rt_uint32_t sta;
    volatile rt_uint32_t icr;
    volatile rt_uint32_t mask;
    volatile rt_uint32_t reserved0[2];
    volatile rt_uint32_t fifocnt;
    volatile rt_uint32_t reserved1[13];
    volatile rt_uint32_t fifo;
};

typedef rt_err_t (*dma_txconfig)(rt_uint32_t *src, rt_uint32_t *dst, int size);
typedef rt_err_t (*dma_rxconfig)(rt_uint32_t *src, rt_uint32_t *dst, int size);
typedef rt_uint32_t (*sdio_clk_get)(struct stm32_sdio *hw_sdio);

struct stm32_sdio_des
{
    struct stm32_sdio *hw_sdio;
    dma_txconfig txconfig;
    dma_rxconfig rxconfig;
    sdio_clk_get clk_get;
};

struct rt_mmcsd_host *sdio_host_create(struct stm32_sdio_des *sdio_des);
void rthw_sdio_irq_process(struct rt_mmcsd_host *host);

#ifdef __cplusplus
}
#endif

#endif