287 lines
10 KiB
C
287 lines
10 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @file mmcsd.h
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* @brief MMC/SD cards common header.
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* @details This header defines an abstract interface useful to access MMC/SD
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* I/O block devices in a standardized way.
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*
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* @addtogroup MMCSD
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* @{
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*/
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#ifndef _MMCSD_H_
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#define _MMCSD_H_
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#if HAL_USE_MMC_SPI || HAL_USE_SDC || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @brief Fixed block size for MMC/SD block devices.
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*/
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#define MMCSD_BLOCK_SIZE 512
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/**
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* @brief Mask of error bits in R1 responses.
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*/
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#define MMCSD_R1_ERROR_MASK 0xFDFFE008
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/**
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* @brief Fixed pattern for CMD8.
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*/
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#define MMCSD_CMD8_PATTERN 0x000001AA
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/**
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* @name SD/MMC status conditions
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* @{
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*/
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#define MMCSD_STS_IDLE 0
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#define MMCSD_STS_READY 1
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#define MMCSD_STS_IDENT 2
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#define MMCSD_STS_STBY 3
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#define MMCSD_STS_TRAN 4
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#define MMCSD_STS_DATA 5
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#define MMCSD_STS_RCV 6
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#define MMCSD_STS_PRG 7
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#define MMCSD_STS_DIS 8
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/** @} */
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/**
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* @name SD/MMC commands
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* @{
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*/
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#define MMCSD_CMD_GO_IDLE_STATE 0
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#define MMCSD_CMD_INIT 1
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#define MMCSD_CMD_ALL_SEND_CID 2
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#define MMCSD_CMD_SEND_RELATIVE_ADDR 3
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#define MMCSD_CMD_SET_BUS_WIDTH 6
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#define MMCSD_CMD_SEL_DESEL_CARD 7
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#define MMCSD_CMD_SEND_IF_COND 8
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#define MMCSD_CMD_SEND_CSD 9
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#define MMCSD_CMD_SEND_CID 10
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#define MMCSD_CMD_STOP_TRANSMISSION 12
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#define MMCSD_CMD_SEND_STATUS 13
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#define MMCSD_CMD_SET_BLOCKLEN 16
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#define MMCSD_CMD_READ_SINGLE_BLOCK 17
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#define MMCSD_CMD_READ_MULTIPLE_BLOCK 18
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#define MMCSD_CMD_SET_BLOCK_COUNT 23
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#define MMCSD_CMD_WRITE_BLOCK 24
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#define MMCSD_CMD_WRITE_MULTIPLE_BLOCK 25
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#define MMCSD_CMD_ERASE_RW_BLK_START 32
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#define MMCSD_CMD_ERASE_RW_BLK_END 33
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#define MMCSD_CMD_ERASE 38
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#define MMCSD_CMD_APP_OP_COND 41
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#define MMCSD_CMD_LOCK_UNLOCK 42
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#define MMCSD_CMD_APP_CMD 55
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#define MMCSD_CMD_READ_OCR 58
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/** @} */
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/**
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* @name CSD record offsets
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*/
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/**
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* @brief Slice position of values in CSD register.
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*/
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/* CSD version 2.0 */
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#define MMCSD_CSD_20_CRC_SLICE 7,1
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#define MMCSD_CSD_20_FILE_FORMAT_SLICE 11,10
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#define MMCSD_CSD_20_TMP_WRITE_PROTECT_SLICE 12,12
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#define MMCSD_CSD_20_PERM_WRITE_PROTECT_SLICE 13,13
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#define MMCSD_CSD_20_COPY_SLICE 14,14
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#define MMCSD_CSD_20_FILE_FORMAT_GRP_SLICE 15,15
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#define MMCSD_CSD_20_WRITE_BL_PARTIAL_SLICE 21,21
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#define MMCSD_CSD_20_WRITE_BL_LEN_SLICE 25,12
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#define MMCSD_CSD_20_R2W_FACTOR_SLICE 28,26
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#define MMCSD_CSD_20_WP_GRP_ENABLE_SLICE 31,31
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#define MMCSD_CSD_20_WP_GRP_SIZE_SLICE 38,32
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#define MMCSD_CSD_20_ERASE_SECTOR_SIZE_SLICE 45,39
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#define MMCSD_CSD_20_ERASE_BLK_EN_SLICE 46,46
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#define MMCSD_CSD_20_C_SIZE_SLICE 69,48
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#define MMCSD_CSD_20_DSR_IMP_SLICE 76,76
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#define MMCSD_CSD_20_READ_BLK_MISALIGN_SLICE 77,77
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#define MMCSD_CSD_20_WRITE_BLK_MISALIGN_SLICE 78,78
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#define MMCSD_CSD_20_READ_BL_PARTIAL_SLICE 79,79
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#define MMCSD_CSD_20_READ_BL_LEN_SLICE 83,80
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#define MMCSD_CSD_20_CCC_SLICE 95,84
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#define MMCSD_CSD_20_TRANS_SPEED_SLICE 103,96
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#define MMCSD_CSD_20_NSAC_SLICE 111,104
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#define MMCSD_CSD_20_TAAC_SLICE 119,112
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#define MMCSD_CSD_20_STRUCTURE_SLICE 127,126
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/* CSD version 1.0 */
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#define MMCSD_CSD_10_CRC_SLICE MMCSD_CSD_20_CRC_SLICE
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#define MMCSD_CSD_10_FILE_FORMAT_SLICE MMCSD_CSD_20_FILE_FORMAT_SLICE
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#define MMCSD_CSD_10_TMP_WRITE_PROTECT_SLICE MMCSD_CSD_20_TMP_WRITE_PROTECT_SLICE
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#define MMCSD_CSD_10_PERM_WRITE_PROTECT_SLICE MMCSD_CSD_20_PERM_WRITE_PROTECT_SLICE
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#define MMCSD_CSD_10_COPY_SLICE MMCSD_CSD_20_COPY_SLICE
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#define MMCSD_CSD_10_FILE_FORMAT_GRP_SLICE MMCSD_CSD_20_FILE_FORMAT_GRP_SLICE
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#define MMCSD_CSD_10_WRITE_BL_PARTIAL_SLICE MMCSD_CSD_20_WRITE_BL_PARTIAL_SLICE
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#define MMCSD_CSD_10_WRITE_BL_LEN_SLICE MMCSD_CSD_20_WRITE_BL_LEN_SLICE
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#define MMCSD_CSD_10_R2W_FACTOR_SLICE MMCSD_CSD_20_R2W_FACTOR_SLICE
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#define MMCSD_CSD_10_WP_GRP_ENABLE_SLICE MMCSD_CSD_20_WP_GRP_ENABLE_SLICE
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#define MMCSD_CSD_10_WP_GRP_SIZE_SLICE MMCSD_CSD_20_WP_GRP_SIZE_SLICE
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#define MMCSD_CSD_10_ERASE_SECTOR_SIZE_SLICE MMCSD_CSD_20_ERASE_SECTOR_SIZE_SLICE
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#define MMCSD_CSD_10_ERASE_BLK_EN_SLICE MMCSD_CSD_20_ERASE_BLK_EN_SLICE
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#define MMCSD_CSD_10_C_SIZE_MULT_SLICE 49,47
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#define MMCSD_CSD_10_VDD_W_CURR_MAX_SLICE 52,50
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#define MMCSD_CSD_10_VDD_W_CURR_MIN_SLICE 55,53
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#define MMCSD_CSD_10_VDD_R_CURR_MAX_SLICE 58,56
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#define MMCSD_CSD_10_VDD_R_CURR_MIX_SLICE 61,59
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#define MMCSD_CSD_10_C_SIZE_SLICE 73,62
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#define MMCSD_CSD_10_DSR_IMP_SLICE MMCSD_CSD_20_DSR_IMP_SLICE
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#define MMCSD_CSD_10_READ_BLK_MISALIGN_SLICE MMCSD_CSD_20_READ_BLK_MISALIGN_SLICE
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#define MMCSD_CSD_10_WRITE_BLK_MISALIGN_SLICE MMCSD_CSD_20_WRITE_BLK_MISALIGN_SLICE
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#define MMCSD_CSD_10_READ_BL_PARTIAL_SLICE MMCSD_CSD_20_READ_BL_PARTIAL_SLICE
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#define MMCSD_CSD_10_READ_BL_LEN_SLICE 83, 80
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#define MMCSD_CSD_10_CCC_SLICE MMCSD_CSD_20_CCC_SLICE
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#define MMCSD_CSD_10_TRANS_SPEED_SLICE MMCSD_CSD_20_TRANS_SPEED_SLICE
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#define MMCSD_CSD_10_NSAC_SLICE MMCSD_CSD_20_NSAC_SLICE
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#define MMCSD_CSD_10_TAAC_SLICE MMCSD_CSD_20_TAAC_SLICE
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#define MMCSD_CSD_10_STRUCTURE_SLICE MMCSD_CSD_20_STRUCTURE_SLICE
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief @p MMCSDBlockDevice specific methods.
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*/
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#define _mmcsd_block_device_methods \
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_base_block_device_methods
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/**
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* @brief @p MMCSDBlockDevice specific data.
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* @note It is empty because @p MMCSDBlockDevice is only an interface
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* without implementation.
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*/
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#define _mmcsd_block_device_data \
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_base_block_device_data \
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/* Card CID.*/ \
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uint32_t cid[4]; \
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/* Card CSD.*/ \
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uint32_t csd[4]; \
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/* Total number of blocks in card.*/ \
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uint32_t capacity;
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/**
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* @extends BaseBlockDeviceVMT
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*
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* @brief @p MMCSDBlockDevice virtual methods table.
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*/
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struct MMCSDBlockDeviceVMT {
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_base_block_device_methods
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};
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/**
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* @extends BaseBlockDevice
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*
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* @brief MCC/SD block device class.
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* @details This class represents a, block-accessible, MMC/SD device.
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*/
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typedef struct {
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/** @brief Virtual Methods Table.*/
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const struct MMCSDBlockDeviceVMT *vmt;
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_mmcsd_block_device_data
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} MMCSDBlockDevice;
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @name R1 response utilities
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* @{
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*/
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/**
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* @brief Evaluates to @p TRUE if the R1 response contains error flags.
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*
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* @param[in] r1 the r1 response
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*/
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#define MMCSD_R1_ERROR(r1) (((r1) & MMCSD_R1_ERROR_MASK) != 0)
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/**
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* @brief Returns the status field of an R1 response.
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*
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* @param[in] r1 the r1 response
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*/
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#define MMCSD_R1_STS(r1) (((r1) >> 9) & 15)
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/**
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* @brief Evaluates to @p TRUE if the R1 response indicates a locked card.
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*
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* @param[in] r1 the r1 response
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*/
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#define MMCSD_R1_IS_CARD_LOCKED(r1) (((r1) >> 21) & 1)
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/** @} */
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/**
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* @name Macro Functions
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* @{
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*/
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/**
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* @brief Returns the card capacity in blocks.
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*
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* @param[in] ip pointer to a @p MMCSDBlockDevice or derived class
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*
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* @return The card capacity.
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*
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* @api
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*/
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#define mmcsdGetCardCapacity(ip) ((ip)->capacity)
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/** @} */
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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uint32_t mmcsdGetCapacity(uint32_t csd[4]);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_MMC_SPI || HAL_USE_MMC_SDC*/
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#endif /* _MMCSD_H_ */
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/** @} */
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