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/****************************************************************************//**
* @file nu_sdh.h
* @brief SDH driver header file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __NU_SDH_H__
#define __NU_SDH_H__
#if defined ( __CC_ARM )
#pragma anon_unions
#endif
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup SDH_Driver SDH Driver
@{
*/
/** @addtogroup SDH_EXPORTED_CONSTANTS SDH Exported Constants
@{
*/
#define SDH_POWER_ON 0x01
#define SDH_POWER_180 0x0A
#define SDH_POWER_300 0x0C
#define SDH_POWER_330 0x0E
#define SDH_RESET_ALL 0x01
#define SDH_RESET_CMD 0x02
#define SDH_RESET_DATA 0x04
#define SDH_CMD_RESP_MASK 0x03
#define SDH_CMD_CRC 0x08
#define SDH_CMD_INDEX 0x10
#define SDH_CMD_DATA 0x20
#define SDH_CMD_ABORTCMD 0xC0
#define SDH_CMD_RESP_NONE 0x00
#define SDH_CMD_RESP_LONG 0x01
#define SDH_CMD_RESP_SHORT 0x02
#define SDH_CMD_RESP_SHORT_BUSY 0x03
/* MMC command */
#define MMC_CMD_STOP_TRANSMISSION 12
/* MMC response */
#define MMC_RSP_PRESENT (1 << 0)
#define MMC_RSP_136 (1 << 1) /* 136 bit response */
#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
#define MMC_RSP_NONE (0)
#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
#define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)
#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
#define MMC_RSP_R3 (MMC_RSP_PRESENT)
#define MMC_RSP_R4 (MMC_RSP_PRESENT)
#define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
#define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
#define MMC_DATA_READ 1
#define MMC_DATA_WRITE 2
#define SDH_BLOCK_SIZE 512ul
struct mmc_cmd
{
unsigned short cmdidx;
unsigned int resp_type;
unsigned int cmdarg;
unsigned int response[4];
};
struct mmc_data
{
union
{
char *dest;
const char *src; /* src buffers don't get written to */
};
unsigned int flags;
unsigned int blocks;
unsigned int blocksize;
};
#define SDH_ISCARDINSERTED(SDH) (SDH->S_PSTATE.CARD_INSERTED && SDH->S_PSTATE.CARD_STABLE)
/*@}*/ /* end of group SDH_EXPORTED_CONSTANTS */
/** @addtogroup SDH_EXPORTED_FUNCTIONS SDH Exported Functions
@{
*/
void SDH_DumpReg(SDH_T *sdh);
void SDH_Reset(SDH_T *sdh, uint8_t u8Mask);
int SDH_SetBusWidth(SDH_T *sdh, uint32_t u32BusWidth);
uint32_t SDH_SetClock(SDH_T *sdh, uint32_t u32SrcFreqInHz, uint32_t u32ExceptedFreqInHz);
int SD_GetBusStatus(SDH_T *sdh, uint32_t cmdidx);
void SDH_SetPower(SDH_T *sdh, uint32_t u32OnOff);
/*@}*/ /* end of group SDH_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group SDH_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#if defined ( __CC_ARM )
#pragma no_anon_unions
#endif
#endif
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