SCSI2SD/software/SCSI2SD/src/sd.h
2021-01-31 19:07:25 +10:00

95 lines
2.3 KiB
C
Executable File

// Copyright (C) 2013 Michael McMaster <michael@codesrc.com>
//
// This file is part of SCSI2SD.
//
// SCSI2SD 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 3 of the License, or
// (at your option) any later version.
//
// SCSI2SD 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 SCSI2SD. If not, see <http://www.gnu.org/licenses/>.
#ifndef SD_H
#define SD_H
#include "storedevice.h"
#define SD_SECTOR_SIZE 512
typedef enum
{
SD_GO_IDLE_STATE = 0,
SD_SEND_OP_COND = 1,
SD_SEND_IF_COND = 8, // SD V2
SD_SEND_CSD = 9,
SD_SEND_CID = 10,
SD_STOP_TRANSMISSION = 12,
SD_SEND_STATUS = 13,
SD_SET_BLOCKLEN = 16,
SD_READ_SINGLE_BLOCK = 17,
SD_READ_MULTIPLE_BLOCK = 18,
SD_APP_SET_WR_BLK_ERASE_COUNT = 23,
SD_WRITE_MULTIPLE_BLOCK = 25,
SD_APP_SEND_OP_COND = 41,
SD_APP_CMD = 55,
SD_READ_OCR = 58,
SD_CRC_ON_OFF = 59
} SD_CMD;
typedef enum
{
SD_R1_IDLE = 1,
SD_R1_ERASE_RESET = 2,
SD_R1_ILLEGAL = 4,
SD_R1_CRC = 8,
SD_R1_ERASE_SEQ = 0x10,
SD_R1_ADDRESS = 0x20,
SD_R1_PARAMETER = 0x40
} SD_R1;
typedef struct
{
S2S_Device dev;
S2S_Target targets[MAX_SCSI_TARGETS];
int version; // SDHC = version 2.
int ccs; // Card Capacity Status. 1 = SDHC or SDXC
uint32_t capacity; // in 512 byte blocks
uint8_t csd[16]; // Unparsed CSD
uint8_t cid[16]; // Unparsed CID
uint32_t lastPollMediaTime;
} SdCard;
extern SdCard sdCard;
extern S2S_Device* sdDevice;
extern volatile uint8_t sdRxDMAComplete;
extern volatile uint8_t sdTxDMAComplete;
int sdInit(void);
#define sdDMABusy() (!(sdRxDMAComplete && sdTxDMAComplete))
void sdWriteMultiSectorPrep(uint32_t sdLBA, uint32_t sdSectors);
void sdWriteMultiSectorDMA(uint8_t* outputBuffer);
int sdWriteSectorDMAPoll();
void sdReadMultiSectorPrep(uint32_t sdLBA, uint32_t sdSectors);
void sdReadMultiSectorDMA(uint8_t* outputBuffer);
void sdReadSingleSectorDMA(uint32_t lba, uint8_t* outputBuffer);
int sdReadSectorDMAPoll();
void sdCompleteTransfer(void);
void sdCheckPresent();
void sdPoll();
#endif