1 files changed, 424 insertions, 0 deletions
diff --git a/nuttx/drivers/mmcsd/mmcsd_csd.h b/nuttx/drivers/mmcsd/mmcsd_csd.h
new file mode 100644
index 000000000..e35eacad5
--- /dev/null
+++ b/nuttx/drivers/mmcsd/mmcsd_csd.h
@@ -0,0 +1,424 @@
+/****************************************************************************
+ * drivers/mmcsd/mmcsd_csd.h
+ *
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <nuttx/config.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * 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_t)csd[4] << 4) | ((uint16_t)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)  ((((uint32_t)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 */