/**************************************************************************** * drivers/mmcsd/mmcsd_csd.h * * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 * COPYRIGHT OWNER 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 __DRIVERS_MMCSD_MMCSD_CSD_H #define __DRIVERS_MMCSD_MMCSD_CSD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /* CSD **********************************************************************/ /* The CSD is a 16 byte, / 128-bit packed structure. The following macros * can be used to extract each packed field from the CSD. Two types of * macros are supported, selected by CONFIG_MMCSD_BE16: (1) byte data (with * MS byte first), or (2) 16-bit big-endian data (with MS hword first). */ #ifdef CONFIG_MMCSD_BE16 /* CSD_STRUCTURE 126-127 */ #define MMCSD_CSD_CSDSTRUCT(csd) (csd[0] >> 14) /* SPEC_VERS 122-125 = (word 0, bits 13:10) (MMC) Spec version */ #define MMC_CSD_SPECVERS(csd) ((csd[0] >> 10) & 0x0f) /* Reserved 120-125 */ /* TAAC 112-119 = Data read access-time-1 * TIME_VALUE 3-6 = Time mantissa * TIME_UNIT 0-2 = Time exponent */ #define MMCSD_CSD_TAAC_TIMEVALUE(csd) ((csd[0] >> 3) & 0x0f) #define MMCSD_CSD_TAAC_TIMEUNIT(csd) (csd[0] & 7) /* NSAC 111:104 = Data read access-time-2 in CLK cycle(NSAC*100) */ #define MMCSD_CSD_NSAC(csd) (csd[1] >> 8) /* TRAN_SPEED 96-103 = Max. data transfer rate * TIME_VALUE 3-6 = Rate exponent * TRANSFER_RATE_UNIT 0-2 = Rate mantissa */ #define MMCSD_CSD_TRANSPEED_TIMEVALUE(csd) ((csd[1] >> 3) & 0x0f) #define MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) (csd[1] & 7) /* CCC 84-95 = Card command classes */ #define MMCSD_CSD_CCC(csd) ((csd[2] >> 4) & 0x0fff) /* READ_BL_LEN 80-83 = Max. read data block length */ #define MMCSD_CSD_READBLLEN(csd) (csd[2] & 0x0f) /* READ_BL_PARTIAL 79-79 = Partial blocks for read allowed */ #define MMCSD_CSD_READBLPARTIAL(csd) (csd[3] >> 15) /* WRITE_BLK_MISALIGN 78-78 = Write block misalignment */ #define MMCSD_CSD_WRITEBLKMISALIN(csd) ((csd[3] >> 14) & 1) /* READ_BLK_MISALIGN 77:77 = Read block misalignment */ #define MMCSD_CSD_READBLKMISALIN(csd) ((csd[3] >> 13) & 1) /* DSR_IMP 76-76 = DSR implemented */ #define MMCSD_CSD_DSRIMP(csd) ((csd[3] >> 12) & 1) /* C_SIZE 62-73 Device size */ #define MMCSD_CSD_CSIZE(csd) (((csd[3] & 0x03ff) << 2) | ((csd[4] >> 14) & 3)) /* VDD_R_CURR_MIN 59-61 = Max. read current at Vcc min */ #define MMCSD_CSD_VDDRCURRMIN(csd) ((csd[4] >> 11) & 7) /* VDD_R_CURR_MAX 56-58 = Max. read current at Vcc max */ #define MMCSD_CSD_VDDRCURRMAX(csd) ((csd[4] >> 8) & 7) /* VDD_W_CURR_MIN 53-55 = Max. write current at Vcc min */ #define MMCSD_CSD_VDDWCURRMIN(csd) ((csd[4] >> 5) & 7) /* VDD_W_CURR_MAX 50-52 = Max. write current at Vcc max */ #define MMCSD_CSD_VDDWCURRMAX(csd) ((csd[4] >> 2) & 7) /* C_SIZE_MULT 47-49 Device size multiplier */ #define MMCSD_CSD_CSIZEMULT(csd) (((csd[4] & 3) << 1) | (csd[5] >> 15)) /* ER_BLK_EN 46-46 =Erase single block enable (SD) */ #define SD_CSD_SDERBLKEN(csd) ((csd[5] >> 14) & 1) /* SECTOR_SIZE 39-45 = Erase sector size (SD) */ #define SD_CSD_SECTORSIZE(csd) ((csd[5] >> 7) & 0x7f) /* SECTOR_SIZE 42-46 = Erase sector size (MMC) */ #define MMC_CSD_SECTORSIZE(csd) ((csd[5] >> 10) & 0x1f) /* ER_GRP_SIZE 37-41 = Erase group size (MMC)*/ #define MMC_CSD_ERGRPSIZE(csd) ((csd[5] >> 5) & 0x1f) /* WP_GRP_SIZE 32-38 = Write protect group size (SD) */ #define SD_CSD_WPGRPSIZE(csd) (csd[5] & 0x7f) /* WP_GRP_SIZE 32-36 = Write protect group size (MMC) */ #define MMC_CSD_WPGRPSIZE(csd) (csd[5] & 0x1f) /* WP_GRP_EN 31-31 = Write protect group enable */ #define MMCSD_WPGRPEN(csd) (csd[6] >> 15) /* DFLT_ECC 29-30 = Manufacturer default ECC (MMC) */ #define MMC_CSD_DFLTECC(csd) ((csd[6] >> 13) & 3) /* R2W_FACTOR 26-28 = Write speed factor */ #define MMCSD_CSD_R2WFACTOR(csd) ((csd[6] >> 10) & 7) /* WRITE_BL_LEN 22-25 = Max. write data block length */ #define MMCSD_CSD_WRITEBLLEN(csd) ((csd[6] >> 6) & 0x0f) /* WRITE_BL_PARTIAL 21-21 = Partial blocks for write allowed */ #define MMCSD_CSD_WRITEBLPARTIAL(csd) ((csd[6] >> 5) & 1) /* Reserved 16-20 */ /* FILE_FORMAT_GROUP 15-15 = File format group */ #define MMCSD_CSD_FILEFORMATGRP(csd) (csd[7] >> 15) /* COPY 14-14 = Copy flag (OTP) */ #define MMCSD_CSD_COPY(csd) ((csd[7] >> 14) & 1) /* PERM_WRITE_PROTECT 13-13 = Permanent write protection */ #define MMCSD_CSD_PERMWRITEPROTECT(csd) ((csd[7] >> 13) & 1) /* TMP_WRITE_PROTECT 12-12 = Temporary write protection */ #define MMCSD_CSD_TMPWRITEPROTECT(csd) ((csd[7] >> 12) & 1) /* FILE_FORMAT 10-11 = File format */ #define MMCSD_CSD_FILEFORMAT(csd) ((csd[7] >> 10) & 3) /* ECC 8-9 = ECC (MMC) */ #define MMC_CSD_ECC(csd) ((csd[7] >> 8) & 3) /* CRC 1-7 = CRC */ #define MMCSD_CSD_CRC(csd) ((csd[7] >> 1) & 0x7f) /* Reserved 0-0 */ #else /* CONFIG_MMCSD_BE16 */ /* CSD_STRUCTURE 126-127 */ #define MMCSD_CSD_CSDSTRUCT(csd) (csd[0] >> 6) /* SPEC_VERS 122-125 = (word 0, bits 13:10) (MMC) Spec version */ #define MMC_CSD_SPECVERS(csd) ((csd[0] >> 2) & 0x0f) /* Reserved 120-155 */ /* TAAC 112-119 = Data read access-time-1 * TIME_VALUE 3-6 = Time mantissa * TIME_UNIT 0-2 = Time exponent */ #define MMCSD_CSD_TAAC_TIMEVALUE(csd) ((csd[1] >> 3) & 0x0f) #define MMCSD_CSD_TAAC_TIMEUNIT(csd) (csd[1] & 7) #define SD20_CSD_TAC_TIMEVALUE(csd) (1) #define SD20_CSD_TAC_TIMEUNIT(csd) (6) /* NSAC 111:104 = Data read access-time-2 in CLK cycle(NSAC*100) */ #define MMCSD_CSD_NSAC(csd) (csd[2]) #define SD20_CSD_NSAC(csd) (0) /* TRAN_SPEED 96-103 = Max. data transfer rate * TIME_VALUE 3-6 = Rate exponent * TRANSFER_RATE_UNIT 0-2 = Rate mantissa */ #define MMCSD_CSD_TRANSPEED_TIMEVALUE(csd) ((csd[3] >> 3) & 0x0f) #define MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) (csd[3] & 7) #define SD20_CSD_TRANSPEED_TIMEVALUE(csd) MMCSD_CSD_TRANSPEED_TIMEVALUE(csd) #define SD20_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd) /* CCC 84-95 = Card command classes */ #define MMCSD_CSD_CCC(csd) (((uint16)csd[4] << 4) | ((uint16)csd[5] >> 4)) #define SD20_CSD_CCC(csd) MMCSD_CSD_CCC(csd) /* READ_BL_LEN 80-83 = Max. read data block length */ #define MMCSD_CSD_READBLLEN(csd) (csd[5] & 0x0f) #define SD20_CSD_READBLLEN(csd) (9) /* READ_BL_PARTIAL 79-79 = Partial blocks for read allowed */ #define MMCSD_CSD_READBLPARTIAL(csd) (csd[6] >> 7) #define SD20_CSD_READBLPARTIAL(csd) (0) /* WRITE_BLK_MISALIGN 78-78 = Write block misalignment */ #define MMCSD_CSD_WRITEBLKMISALIGN(csd) ((csd[6] >> 6) & 1) #define SD20_CSD_WRITEBLKMISALIGN(csd) (0) /* READ_BLK_MISALIGN 77:77 = Read block misalignment */ #define MMCSD_CSD_READBLKMISALIGN(csd) ((csd[6] >> 5) & 1) #define SD20_CSD_READBLKMISALIGN(csd) (0) /* DSR_IMP 76-76 = DSR implemented */ #define MMCSD_CSD_DSRIMP(csd) ((csd[6] >> 4) & 1) #define SD20_CSD_DSRIMP(csd) MMCSD_CSD_DSRIMP(csd) /* C_SIZE 62-73 Device size */ #define MMCSD_CSD_CSIZE(csd) (((csd[6] & 3) << 10) | (csd[7] << 2) | (csd[8] >> 6)) #define SD20_CSD_CSIZE(csd) (((csd[7] & 0x3f) << 16) | (csd[8] << 8) | csd[9]) /* VDD_R_CURR_MIN 59-61 = Max. read current at Vcc min */ #define MMCSD_CSD_VDDRCURRMIN(csd) ((csd[8] >> 3) & 7) #define SD20_CSD_VDDRCURRMIN(csd) (7) /* VDD_R_CURR_MAX 56-58 = Max. read current at Vcc max */ #define MMCSD_CSD_VDDRCURRMAX(csd) (csd[8] & 7) #define SD20_CSD_VDDRCURRMAX(csd) (6) /* VDD_W_CURR_MIN 53-55 = Max. write current at Vcc min */ #define MMCSD_CSD_VDDWCURRMIN(csd) ((csd[9] >> 5) & 7) #define SD20_CSD_VDDWCURRMIN(csd) (7) /* VDD_W_CURR_MAX 50-52 = Max. write current at Vcc max */ #define MMCSD_CSD_VDDWCURRMAX(csd) ((csd[9] >> 2) & 7) #define SD20_CSD_VDDWCURRMAX(csd) (6) /* C_SIZE_MULT 47-49 Device size multiplier */ #define MMCSD_CSD_CSIZEMULT(csd) (((csd[9] & 3) << 1) | (csd[10] >> 7)) #define SD20_CSD_CSIZEMULT(csd) (10-2) /* ER_BLK_EN 46-46 = Erase single block enable (SD) */ #define SD_CSD_SDERBLKEN(csd) ((csd[10] >> 6) & 1) #define SD20_CSD_SDERBLKEN(csd) (1) /* SECTOR_SIZE 39-45 = Erase sector size (SD) */ #define SD_CSD_SECTORSIZE(csd) (((csd[10] & 0x3f) << 1) | (csd[11] >> 7)) #define SD20_CSD_SECTORSIZE(csd) (0x7f) /* SECTOR_SIZE 42-46 = Erase sector size (MMC) */ #define MMC_CSD_SECTORSIZE(csd) ((csd[10] >> 2) & 0x1f) /* ER_GRP_SIZE 37-41 = Erase group size (MMC)*/ #define MMC_CSD_ERGRPSIZE(csd) (((csd[10] & 3) << 3) | (csd[11] > 5)) /* WP_GRP_SIZE 32-38 = Write protect group size (SD) */ #define SD_CSD_WPGRPSIZE(csd) (csd[11] & 0x7f) #define SD20_CSD_WPGRPSIZE(csd) (0) /* WP_GRP_SIZE 32-36 = Write protect group size (MMC) */ #define MMC_CSD_WPGRPSIZE(csd) (csd[11] & 0x1f) /* WP_GRP_EN 31-31 = Write protect group enable */ #define MMCSD_WPGRPEN(csd) (csd[12] >> 7) #define SD20_WPGRPEN(csd) (0) /* DFLT_ECC 29-30 = Manufacturer default ECC (MMC) */ #define MMC_CSD_DFLTECC(csd) ((csd[12] >> 5) & 3) /* R2W_FACTOR 26-28 = Write speed factor */ #define MMCSD_CSD_R2WFACTOR(csd) ((csd[12] >> 2) & 7) #define SD20_CSD_R2WFACTOR(csd) (2) /* WRITE_BL_LEN 22-25 = Max. write data block length */ #define MMCSD_CSD_WRITEBLLEN(csd) (((csd[12] & 3) << 2) | (csd[13] >> 6)) #define SD20_CSD_WRITEBLLEN(csd) (9) /* WRITE_BL_PARTIAL 21-21 = Partial blocks for write allowed */ #define MMCSD_CSD_WRITEBLPARTIAL(csd) ((csd[13] >> 5) & 1) #define SD20_CSD_WRITEBLPARTIAL(csd) (0) /* Reserved 16-20 */ /* FILE_FORMAT_GROUP 15-15 = File format group */ #define MMCSD_CSD_FILEFORMATGRP(csd) (csd[14] >> 7) #define SD20_CSD_FILEFORMATGRP(csd) (0) /* COPY 14-14 = Copy flag (OTP) */ #define MMCSD_CSD_COPY(csd) ((csd[14] >> 6) & 1) #define SD20_CSD_COPY(csd) MMCSD_CSD_COPY(csd) /* PERM_WRITE_PROTECT 13-13 = Permanent write protection */ #define MMCSD_CSD_PERMWRITEPROTECT(csd) ((csd[14] >> 5) & 1) #define SD20_CSD_PERMWRITEPROTECT(csd) MMCSD_CSD_PERMWRITEPROTECT(csd) /* TMP_WRITE_PROTECT 12-12 = Temporary write protection */ #define MMCSD_CSD_TMPWRITEPROTECT(csd) ((csd[14] >> 4) & 1) #define SD20_CSD_TMPWRITEPROTECT(csd) MMCSD_CSD_TMPWRITEPROTECT(csd) /* FILE_FORMAT 10-11 = File format */ #define MMCSD_CSD_FILEFORMAT(csd) ((csd[14] >> 2) & 3) #define SD20_CSD_FILEFORMAT(csd) (0) /* ECC 8-9 = ECC (MMC) */ #define MMC_CSD_ECC(csd) (csd[14] & 3) /* CRC 1-7 = CRC */ #define MMCSD_CSD_CRC(csd) (csd[15] >> 1) #define SD20_CSD_CRC(csd) MMCSD_CSD_CRC(csd) /* Reserved 0-0 */ #endif /* CONFIG_MMCSD_BE16 */ /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __DRIVERS_MMCSD_MMCSD_CSD_H */