094dd2b716
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23340 a1c6a512-1295-4272-9138-f99709370657
147 lines
5.3 KiB
C
147 lines
5.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Alan Korr
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* Copyright (C) 2008 by Frank Gevaerts
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __SD_H__
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#define __SD_H__
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#include <stdbool.h>
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#include "mv.h" /* for HAVE_MULTIDRIVE or not */
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#define SD_BLOCK_SIZE 512 /* XXX : support other sizes ? */
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struct storage_info;
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void sd_enable(bool on);
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void sd_spindown(int seconds);
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void sd_sleep(void);
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void sd_sleepnow(void);
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bool sd_disk_is_active(void);
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int sd_soft_reset(void);
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int sd_init(void);
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void sd_close(void);
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int sd_read_sectors(IF_MD2(int drive,) unsigned long start, int count, void* buf);
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int sd_write_sectors(IF_MD2(int drive,) unsigned long start, int count, const void* buf);
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void sd_spin(void);
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int sd_spinup_time(void); /* ticks */
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#ifdef STORAGE_GET_INFO
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void sd_get_info(IF_MD2(int drive,) struct storage_info *info);
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#endif
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#ifdef HAVE_HOTSWAP
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bool sd_removable(IF_MV_NONVOID(int drive));
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bool sd_present(IF_MV_NONVOID(int drive));
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void card_enable_monitoring_target(bool on);
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#endif
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bool card_detect_target(void);
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long sd_last_disk_activity(void);
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#ifdef CONFIG_STORAGE_MULTI
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int sd_num_drives(int first_drive);
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#endif
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/* SD States */
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#define SD_IDLE 0
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#define SD_READY 1
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#define SD_IDENT 2
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#define SD_STBY 3
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#define SD_TRAN 4
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#define SD_DATA 5
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#define SD_RCV 6
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#define SD_PRG 7
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#define SD_DIS 8
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/* SD Commands */
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#define SD_GO_IDLE_STATE 0
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#define SD_ALL_SEND_CID 2
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#define SD_SEND_RELATIVE_ADDR 3
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#define SD_SET_DSR 4
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#define SD_SWITCH_FUNC 6
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#define SD_SET_BUS_WIDTH 6 /* acmd6 */
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#define SD_SELECT_CARD 7
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#define SD_DESELECT_CARD 7
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#define SD_SEND_IF_COND 8
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#define SD_SEND_CSD 9
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#define SD_SEND_CID 10
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#define SD_STOP_TRANSMISSION 12
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#define SD_SEND_STATUS 13
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#define SD_GO_INACTIVE_STATE 15
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#define SD_SET_BLOCKLEN 16
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#define SD_READ_SINGLE_BLOCK 17
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#define SD_READ_MULTIPLE_BLOCK 18
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#define SD_SEND_NUM_WR_BLOCKS 22
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#define SD_WRITE_BLOCK 24
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#define SD_WRITE_MULTIPLE_BLOCK 25
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#define SD_ERASE_WR_BLK_START 32
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#define SD_ERASE_WR_BLK_END 33
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#define SD_ERASE 38
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#define SD_APP_OP_COND 41
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#define SD_LOCK_UNLOCK 42
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#define SD_SET_CLR_CARD_DETECT 42 /* acmd42 */
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#define SD_SEND_SCR 51 /* acmd51 */
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#define SD_APP_CMD 55
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/*
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SD/MMC status in R1, for native mode (SPI bits are different)
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Type
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e : error bit
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s : status bit
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r : detected and set for the actual command response
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x : detected and set during command execution. the host must poll
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the card by sending status command in order to read these bits.
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Clear condition
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a : according to the card state
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b : always related to the previous command. Reception of
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a valid command will clear it (with a delay of one command)
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c : clear by read
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*/
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#define SD_R1_OUT_OF_RANGE (1 << 31) /* erx, c */
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#define SD_R1_ADDRESS_ERROR (1 << 30) /* erx, c */
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#define SD_R1_BLOCK_LEN_ERROR (1 << 29) /* erx, c */
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#define SD_R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */
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#define SD_R1_ERASE_PARAM (1 << 27) /* exx, c */
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#define SD_R1_WP_VIOLATION (1 << 26) /* erx, c */
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#define SD_R1_CARD_IS_LOCKED (1 << 25) /* sx, a */
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#define SD_R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */
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#define SD_R1_COM_CRC_ERROR (1 << 23) /* er, b */
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#define SD_R1_ILLEGAL_COMMAND (1 << 22) /* er, b */
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#define SD_R1_CARD_ECC_FAILED (1 << 21) /* erx, c */
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#define SD_R1_CC_ERROR (1 << 20) /* erx, c */
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#define SD_R1_ERROR (1 << 19) /* erx, c */
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#define SD_R1_UNDERRUN (1 << 18) /* ex, c */
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#define SD_R1_OVERRUN (1 << 17) /* ex, c */
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#define SD_R1_CSD_OVERWRITE (1 << 16) /* erx, c */
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#define SD_R1_WP_ERASE_SKIP (1 << 15) /* erx, c */
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#define SD_R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */
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#define SD_R1_ERASE_RESET (1 << 13) /* sr, c */
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#define SD_R1_STATUS(x) (x & 0xFFFFE000)
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#define SD_R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
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#define SD_R1_READY_FOR_DATA (1 << 8) /* sx, a */
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#define SD_R1_APP_CMD (1 << 5) /* sr, c */
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#define SD_R1_AKE_SEQ_ERROR (1 << 3) /* er, c */
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/* SD OCR bits */
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#define SD_OCR_CARD_CAPACITY_STATUS (1 << 30) /* Card Capacity Status */
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#endif
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