408d3a135a
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2401 42af7a65-404d-4744-a932-0658087f49c3
425 lines
13 KiB
C
425 lines
13 KiB
C
/****************************************************************************
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* drivers/mmcsd/mmcsd_csd.h
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*
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* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __DRIVERS_MMCSD_MMCSD_CSD_H
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#define __DRIVERS_MMCSD_MMCSD_CSD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* CSD **********************************************************************/
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/* The CSD is a 16 byte, / 128-bit packed structure. The following macros
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* can be used to extract each packed field from the CSD. Two types of
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* macros are supported, selected by CONFIG_MMCSD_BE16: (1) byte data (with
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* MS byte first), or (2) 16-bit big-endian data (with MS hword first).
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*/
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#ifdef CONFIG_MMCSD_BE16
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/* CSD_STRUCTURE 126-127 */
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#define MMCSD_CSD_CSDSTRUCT(csd) (csd[0] >> 14)
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/* SPEC_VERS 122-125 = (word 0, bits 13:10) (MMC) Spec version */
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#define MMC_CSD_SPECVERS(csd) ((csd[0] >> 10) & 0x0f)
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/* Reserved 120-125 */
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/* TAAC 112-119 = Data read access-time-1
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* TIME_VALUE 3-6 = Time mantissa
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* TIME_UNIT 0-2 = Time exponent
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*/
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#define MMCSD_CSD_TAAC_TIMEVALUE(csd) ((csd[0] >> 3) & 0x0f)
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#define MMCSD_CSD_TAAC_TIMEUNIT(csd) (csd[0] & 7)
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/* NSAC 111:104 = Data read access-time-2 in CLK cycle(NSAC*100) */
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#define MMCSD_CSD_NSAC(csd) (csd[1] >> 8)
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/* TRAN_SPEED 96-103 = Max. data transfer rate
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* TIME_VALUE 3-6 = Rate exponent
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* TRANSFER_RATE_UNIT 0-2 = Rate mantissa
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*/
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#define MMCSD_CSD_TRANSPEED_TIMEVALUE(csd) ((csd[1] >> 3) & 0x0f)
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#define MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) (csd[1] & 7)
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/* CCC 84-95 = Card command classes */
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#define MMCSD_CSD_CCC(csd) ((csd[2] >> 4) & 0x0fff)
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/* READ_BL_LEN 80-83 = Max. read data block length */
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#define MMCSD_CSD_READBLLEN(csd) (csd[2] & 0x0f)
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/* READ_BL_PARTIAL 79-79 = Partial blocks for read allowed */
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#define MMCSD_CSD_READBLPARTIAL(csd) (csd[3] >> 15)
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/* WRITE_BLK_MISALIGN 78-78 = Write block misalignment */
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#define MMCSD_CSD_WRITEBLKMISALIN(csd) ((csd[3] >> 14) & 1)
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/* READ_BLK_MISALIGN 77:77 = Read block misalignment */
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#define MMCSD_CSD_READBLKMISALIN(csd) ((csd[3] >> 13) & 1)
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/* DSR_IMP 76-76 = DSR implemented */
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#define MMCSD_CSD_DSRIMP(csd) ((csd[3] >> 12) & 1)
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/* C_SIZE 62-73 Device size */
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#define MMCSD_CSD_CSIZE(csd) (((csd[3] & 0x03ff) << 2) | ((csd[4] >> 14) & 3))
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/* VDD_R_CURR_MIN 59-61 = Max. read current at Vcc min */
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#define MMCSD_CSD_VDDRCURRMIN(csd) ((csd[4] >> 11) & 7)
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/* VDD_R_CURR_MAX 56-58 = Max. read current at Vcc max */
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#define MMCSD_CSD_VDDRCURRMAX(csd) ((csd[4] >> 8) & 7)
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/* VDD_W_CURR_MIN 53-55 = Max. write current at Vcc min */
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#define MMCSD_CSD_VDDWCURRMIN(csd) ((csd[4] >> 5) & 7)
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/* VDD_W_CURR_MAX 50-52 = Max. write current at Vcc max */
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#define MMCSD_CSD_VDDWCURRMAX(csd) ((csd[4] >> 2) & 7)
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/* C_SIZE_MULT 47-49 Device size multiplier */
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#define MMCSD_CSD_CSIZEMULT(csd) (((csd[4] & 3) << 1) | (csd[5] >> 15))
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/* ER_BLK_EN 46-46 =Erase single block enable (SD) */
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#define SD_CSD_SDERBLKEN(csd) ((csd[5] >> 14) & 1)
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/* SECTOR_SIZE 39-45 = Erase sector size (SD) */
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#define SD_CSD_SECTORSIZE(csd) ((csd[5] >> 7) & 0x7f)
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/* SECTOR_SIZE 42-46 = Erase sector size (MMC) */
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#define MMC_CSD_SECTORSIZE(csd) ((csd[5] >> 10) & 0x1f)
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/* ER_GRP_SIZE 37-41 = Erase group size (MMC)*/
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#define MMC_CSD_ERGRPSIZE(csd) ((csd[5] >> 5) & 0x1f)
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/* WP_GRP_SIZE 32-38 = Write protect group size (SD) */
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#define SD_CSD_WPGRPSIZE(csd) (csd[5] & 0x7f)
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/* WP_GRP_SIZE 32-36 = Write protect group size (MMC) */
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#define MMC_CSD_WPGRPSIZE(csd) (csd[5] & 0x1f)
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/* WP_GRP_EN 31-31 = Write protect group enable */
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#define MMCSD_WPGRPEN(csd) (csd[6] >> 15)
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/* DFLT_ECC 29-30 = Manufacturer default ECC (MMC) */
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#define MMC_CSD_DFLTECC(csd) ((csd[6] >> 13) & 3)
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/* R2W_FACTOR 26-28 = Write speed factor */
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#define MMCSD_CSD_R2WFACTOR(csd) ((csd[6] >> 10) & 7)
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/* WRITE_BL_LEN 22-25 = Max. write data block length */
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#define MMCSD_CSD_WRITEBLLEN(csd) ((csd[6] >> 6) & 0x0f)
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/* WRITE_BL_PARTIAL 21-21 = Partial blocks for write allowed */
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#define MMCSD_CSD_WRITEBLPARTIAL(csd) ((csd[6] >> 5) & 1)
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/* Reserved 16-20 */
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/* FILE_FORMAT_GROUP 15-15 = File format group */
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#define MMCSD_CSD_FILEFORMATGRP(csd) (csd[7] >> 15)
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/* COPY 14-14 = Copy flag (OTP) */
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#define MMCSD_CSD_COPY(csd) ((csd[7] >> 14) & 1)
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/* PERM_WRITE_PROTECT 13-13 = Permanent write protection */
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#define MMCSD_CSD_PERMWRITEPROTECT(csd) ((csd[7] >> 13) & 1)
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/* TMP_WRITE_PROTECT 12-12 = Temporary write protection */
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#define MMCSD_CSD_TMPWRITEPROTECT(csd) ((csd[7] >> 12) & 1)
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/* FILE_FORMAT 10-11 = File format */
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#define MMCSD_CSD_FILEFORMAT(csd) ((csd[7] >> 10) & 3)
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/* ECC 8-9 = ECC (MMC) */
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#define MMC_CSD_ECC(csd) ((csd[7] >> 8) & 3)
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/* CRC 1-7 = CRC */
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#define MMCSD_CSD_CRC(csd) ((csd[7] >> 1) & 0x7f)
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/* Reserved 0-0 */
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#else /* CONFIG_MMCSD_BE16 */
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/* CSD_STRUCTURE 126-127 */
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#define MMCSD_CSD_CSDSTRUCT(csd) (csd[0] >> 6)
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/* SPEC_VERS 122-125 = (word 0, bits 13:10) (MMC) Spec version */
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#define MMC_CSD_SPECVERS(csd) ((csd[0] >> 2) & 0x0f)
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/* Reserved 120-155 */
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/* TAAC 112-119 = Data read access-time-1
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* TIME_VALUE 3-6 = Time mantissa
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* TIME_UNIT 0-2 = Time exponent
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*/
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#define MMCSD_CSD_TAAC_TIMEVALUE(csd) ((csd[1] >> 3) & 0x0f)
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#define MMCSD_CSD_TAAC_TIMEUNIT(csd) (csd[1] & 7)
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#define SD20_CSD_TAC_TIMEVALUE(csd) (1)
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#define SD20_CSD_TAC_TIMEUNIT(csd) (6)
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/* NSAC 111:104 = Data read access-time-2 in CLK cycle(NSAC*100) */
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#define MMCSD_CSD_NSAC(csd) (csd[2])
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#define SD20_CSD_NSAC(csd) (0)
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/* TRAN_SPEED 96-103 = Max. data transfer rate
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* TIME_VALUE 3-6 = Rate exponent
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* TRANSFER_RATE_UNIT 0-2 = Rate mantissa
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*/
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#define MMCSD_CSD_TRANSPEED_TIMEVALUE(csd) ((csd[3] >> 3) & 0x0f)
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#define MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) (csd[3] & 7)
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#define SD20_CSD_TRANSPEED_TIMEVALUE(csd) MMCSD_CSD_TRANSPEED_TIMEVALUE(csd)
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#define SD20_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd)
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/* CCC 84-95 = Card command classes */
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#define MMCSD_CSD_CCC(csd) (((uint16_t)csd[4] << 4) | ((uint16_t)csd[5] >> 4))
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#define SD20_CSD_CCC(csd) MMCSD_CSD_CCC(csd)
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/* READ_BL_LEN 80-83 = Max. read data block length */
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#define MMCSD_CSD_READBLLEN(csd) (csd[5] & 0x0f)
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#define SD20_CSD_READBLLEN(csd) (9)
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/* READ_BL_PARTIAL 79-79 = Partial blocks for read allowed */
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#define MMCSD_CSD_READBLPARTIAL(csd) (csd[6] >> 7)
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#define SD20_CSD_READBLPARTIAL(csd) (0)
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/* WRITE_BLK_MISALIGN 78-78 = Write block misalignment */
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#define MMCSD_CSD_WRITEBLKMISALIGN(csd) ((csd[6] >> 6) & 1)
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#define SD20_CSD_WRITEBLKMISALIGN(csd) (0)
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/* READ_BLK_MISALIGN 77:77 = Read block misalignment */
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#define MMCSD_CSD_READBLKMISALIGN(csd) ((csd[6] >> 5) & 1)
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#define SD20_CSD_READBLKMISALIGN(csd) (0)
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/* DSR_IMP 76-76 = DSR implemented */
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#define MMCSD_CSD_DSRIMP(csd) ((csd[6] >> 4) & 1)
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#define SD20_CSD_DSRIMP(csd) MMCSD_CSD_DSRIMP(csd)
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/* C_SIZE 62-73 Device size */
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#define MMCSD_CSD_CSIZE(csd) (((csd[6] & 3) << 10) | (csd[7] << 2) | (csd[8] >> 6))
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#define SD20_CSD_CSIZE(csd) ((((uint32_t)csd[7] & 0x3f) << 16) | (csd[8] << 8) | csd[9])
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/* VDD_R_CURR_MIN 59-61 = Max. read current at Vcc min */
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#define MMCSD_CSD_VDDRCURRMIN(csd) ((csd[8] >> 3) & 7)
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#define SD20_CSD_VDDRCURRMIN(csd) (7)
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/* VDD_R_CURR_MAX 56-58 = Max. read current at Vcc max */
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#define MMCSD_CSD_VDDRCURRMAX(csd) (csd[8] & 7)
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#define SD20_CSD_VDDRCURRMAX(csd) (6)
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/* VDD_W_CURR_MIN 53-55 = Max. write current at Vcc min */
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#define MMCSD_CSD_VDDWCURRMIN(csd) ((csd[9] >> 5) & 7)
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#define SD20_CSD_VDDWCURRMIN(csd) (7)
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/* VDD_W_CURR_MAX 50-52 = Max. write current at Vcc max */
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#define MMCSD_CSD_VDDWCURRMAX(csd) ((csd[9] >> 2) & 7)
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#define SD20_CSD_VDDWCURRMAX(csd) (6)
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/* C_SIZE_MULT 47-49 Device size multiplier */
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#define MMCSD_CSD_CSIZEMULT(csd) (((csd[9] & 3) << 1) | (csd[10] >> 7))
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#define SD20_CSD_CSIZEMULT(csd) (10-2)
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/* ER_BLK_EN 46-46 = Erase single block enable (SD) */
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#define SD_CSD_SDERBLKEN(csd) ((csd[10] >> 6) & 1)
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#define SD20_CSD_SDERBLKEN(csd) (1)
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/* SECTOR_SIZE 39-45 = Erase sector size (SD) */
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#define SD_CSD_SECTORSIZE(csd) (((csd[10] & 0x3f) << 1) | (csd[11] >> 7))
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#define SD20_CSD_SECTORSIZE(csd) (0x7f)
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/* SECTOR_SIZE 42-46 = Erase sector size (MMC) */
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#define MMC_CSD_SECTORSIZE(csd) ((csd[10] >> 2) & 0x1f)
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/* ER_GRP_SIZE 37-41 = Erase group size (MMC)*/
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#define MMC_CSD_ERGRPSIZE(csd) (((csd[10] & 3) << 3) | (csd[11] > 5))
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/* WP_GRP_SIZE 32-38 = Write protect group size (SD) */
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#define SD_CSD_WPGRPSIZE(csd) (csd[11] & 0x7f)
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#define SD20_CSD_WPGRPSIZE(csd) (0)
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/* WP_GRP_SIZE 32-36 = Write protect group size (MMC) */
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#define MMC_CSD_WPGRPSIZE(csd) (csd[11] & 0x1f)
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/* WP_GRP_EN 31-31 = Write protect group enable */
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#define MMCSD_WPGRPEN(csd) (csd[12] >> 7)
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#define SD20_WPGRPEN(csd) (0)
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/* DFLT_ECC 29-30 = Manufacturer default ECC (MMC) */
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#define MMC_CSD_DFLTECC(csd) ((csd[12] >> 5) & 3)
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/* R2W_FACTOR 26-28 = Write speed factor */
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#define MMCSD_CSD_R2WFACTOR(csd) ((csd[12] >> 2) & 7)
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#define SD20_CSD_R2WFACTOR(csd) (2)
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/* WRITE_BL_LEN 22-25 = Max. write data block length */
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#define MMCSD_CSD_WRITEBLLEN(csd) (((csd[12] & 3) << 2) | (csd[13] >> 6))
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#define SD20_CSD_WRITEBLLEN(csd) (9)
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/* WRITE_BL_PARTIAL 21-21 = Partial blocks for write allowed */
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#define MMCSD_CSD_WRITEBLPARTIAL(csd) ((csd[13] >> 5) & 1)
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#define SD20_CSD_WRITEBLPARTIAL(csd) (0)
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/* Reserved 16-20 */
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/* FILE_FORMAT_GROUP 15-15 = File format group */
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#define MMCSD_CSD_FILEFORMATGRP(csd) (csd[14] >> 7)
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#define SD20_CSD_FILEFORMATGRP(csd) (0)
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/* COPY 14-14 = Copy flag (OTP) */
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#define MMCSD_CSD_COPY(csd) ((csd[14] >> 6) & 1)
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#define SD20_CSD_COPY(csd) MMCSD_CSD_COPY(csd)
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/* PERM_WRITE_PROTECT 13-13 = Permanent write protection */
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#define MMCSD_CSD_PERMWRITEPROTECT(csd) ((csd[14] >> 5) & 1)
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#define SD20_CSD_PERMWRITEPROTECT(csd) MMCSD_CSD_PERMWRITEPROTECT(csd)
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/* TMP_WRITE_PROTECT 12-12 = Temporary write protection */
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#define MMCSD_CSD_TMPWRITEPROTECT(csd) ((csd[14] >> 4) & 1)
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#define SD20_CSD_TMPWRITEPROTECT(csd) MMCSD_CSD_TMPWRITEPROTECT(csd)
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/* FILE_FORMAT 10-11 = File format */
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#define MMCSD_CSD_FILEFORMAT(csd) ((csd[14] >> 2) & 3)
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#define SD20_CSD_FILEFORMAT(csd) (0)
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/* ECC 8-9 = ECC (MMC) */
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#define MMC_CSD_ECC(csd) (csd[14] & 3)
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/* CRC 1-7 = CRC */
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#define MMCSD_CSD_CRC(csd) (csd[15] >> 1)
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#define SD20_CSD_CRC(csd) MMCSD_CSD_CRC(csd)
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/* Reserved 0-0 */
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#endif /* CONFIG_MMCSD_BE16 */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __DRIVERS_MMCSD_MMCSD_CSD_H */
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