83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
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/*
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* SD Memory Card emulation. Mostly correct for MMC too.
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*
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* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __hw_sd_h
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#define __hw_sd_h 1
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#include <vl.h>
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#define OUT_OF_RANGE (1 << 31)
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#define ADDRESS_ERROR (1 << 30)
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#define BLOCK_LEN_ERROR (1 << 29)
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#define ERASE_SEQ_ERROR (1 << 28)
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#define ERASE_PARAM (1 << 27)
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#define WP_VIOLATION (1 << 26)
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#define CARD_IS_LOCKED (1 << 25)
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#define LOCK_UNLOCK_FAILED (1 << 24)
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#define COM_CRC_ERROR (1 << 23)
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#define ILLEGAL_COMMAND (1 << 22)
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#define CARD_ECC_FAILED (1 << 21)
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#define CC_ERROR (1 << 20)
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#define SD_ERROR (1 << 19)
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#define CID_CSD_OVERWRITE (1 << 16)
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#define WP_ERASE_SKIP (1 << 15)
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#define CARD_ECC_DISABLED (1 << 14)
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#define ERASE_RESET (1 << 13)
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#define CURRENT_STATE (7 << 9)
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#define READY_FOR_DATA (1 << 8)
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#define APP_CMD (1 << 5)
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#define AKE_SEQ_ERROR (1 << 3)
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typedef enum {
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sd_none = -1,
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sd_bc = 0, /* broadcast -- no response */
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sd_bcr, /* broadcast with response */
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sd_ac, /* addressed -- no data transfer */
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sd_adtc, /* addressed with data transfer */
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} sd_cmd_type_t;
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struct sd_request_s {
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uint8_t cmd;
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uint32_t arg;
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uint8_t crc;
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};
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typedef struct SDState SDState;
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SDState *sd_init(BlockDriverState *bs);
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int sd_do_command(SDState *sd, struct sd_request_s *req,
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uint8_t *response);
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void sd_write_data(SDState *sd, uint8_t value);
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uint8_t sd_read_data(SDState *sd);
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void sd_set_cb(SDState *sd, void *opaque,
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void (*readonly_cb)(void *, int),
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void (*inserted_cb)(void *, int));
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int sd_data_ready(SDState *sd);
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#endif /* __hw_sd_h */
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