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