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