362 lines
18 KiB
C
362 lines
18 KiB
C
/*
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* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
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* Adaptations to ESP-IDF Copyright (c) 2016 Espressif Systems (Shanghai) PTE LTD
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SDMMC_DEFS_H_
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#define _SDMMC_DEFS_H_
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#include <stdint.h>
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#include <limits.h>
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/* MMC commands */ /* response type */
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#define MMC_GO_IDLE_STATE 0 /* R0 */
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#define MMC_SEND_OP_COND 1 /* R3 */
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#define MMC_ALL_SEND_CID 2 /* R2 */
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#define MMC_SET_RELATIVE_ADDR 3 /* R1 */
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#define MMC_SWITCH 6 /* R1B */
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#define MMC_SELECT_CARD 7 /* R1 */
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#define MMC_SEND_EXT_CSD 8 /* R1 */
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#define MMC_SEND_CSD 9 /* R2 */
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#define MMC_SEND_CID 10 /* R1 */
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#define MMC_STOP_TRANSMISSION 12 /* R1B */
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#define MMC_SEND_STATUS 13 /* R1 */
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#define MMC_SET_BLOCKLEN 16 /* R1 */
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#define MMC_READ_BLOCK_SINGLE 17 /* R1 */
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#define MMC_READ_BLOCK_MULTIPLE 18 /* R1 */
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#define MMC_SET_BLOCK_COUNT 23 /* R1 */
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#define MMC_WRITE_BLOCK_SINGLE 24 /* R1 */
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#define MMC_WRITE_BLOCK_MULTIPLE 25 /* R1 */
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#define MMC_APP_CMD 55 /* R1 */
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/* SD commands */ /* response type */
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#define SD_SEND_RELATIVE_ADDR 3 /* R6 */
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#define SD_SEND_SWITCH_FUNC 6 /* R1 */
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#define SD_SEND_IF_COND 8 /* R7 */
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#define SD_READ_OCR 58 /* R3 */
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#define SD_CRC_ON_OFF 59 /* R1 */
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/* SD application commands */ /* response type */
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#define SD_APP_SET_BUS_WIDTH 6 /* R1 */
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#define SD_APP_SD_STATUS 13 /* R2 */
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#define SD_APP_OP_COND 41 /* R3 */
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#define SD_APP_SEND_SCR 51 /* R1 */
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/* OCR bits */
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#define MMC_OCR_MEM_READY (1<<31) /* memory power-up status bit */
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#define MMC_OCR_ACCESS_MODE_MASK 0x60000000 /* bits 30:29 */
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#define MMC_OCR_SECTOR_MODE (1<<30)
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#define MMC_OCR_BYTE_MODE (1<<29)
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#define MMC_OCR_3_5V_3_6V (1<<23)
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#define MMC_OCR_3_4V_3_5V (1<<22)
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#define MMC_OCR_3_3V_3_4V (1<<21)
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#define MMC_OCR_3_2V_3_3V (1<<20)
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#define MMC_OCR_3_1V_3_2V (1<<19)
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#define MMC_OCR_3_0V_3_1V (1<<18)
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#define MMC_OCR_2_9V_3_0V (1<<17)
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#define MMC_OCR_2_8V_2_9V (1<<16)
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#define MMC_OCR_2_7V_2_8V (1<<15)
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#define MMC_OCR_2_6V_2_7V (1<<14)
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#define MMC_OCR_2_5V_2_6V (1<<13)
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#define MMC_OCR_2_4V_2_5V (1<<12)
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#define MMC_OCR_2_3V_2_4V (1<<11)
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#define MMC_OCR_2_2V_2_3V (1<<10)
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#define MMC_OCR_2_1V_2_2V (1<<9)
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#define MMC_OCR_2_0V_2_1V (1<<8)
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#define MMC_OCR_1_65V_1_95V (1<<7)
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#define SD_OCR_SDHC_CAP (1<<30)
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#define SD_OCR_VOL_MASK 0xFF8000 /* bits 23:15 */
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/* SD mode R1 response type bits */
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#define MMC_R1_READY_FOR_DATA (1<<8) /* ready for next transfer */
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#define MMC_R1_APP_CMD (1<<5) /* app. commands supported */
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/* SPI mode R1 response type bits */
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#define SD_SPI_R1_IDLE_STATE (1<<0)
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#define SD_SPI_R1_CMD_CRC_ERR (1<<3)
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/* 48-bit response decoding (32 bits w/o CRC) */
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#define MMC_R1(resp) ((resp)[0])
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#define MMC_R3(resp) ((resp)[0])
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#define SD_R6(resp) ((resp)[0])
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#define MMC_R1_CURRENT_STATE(resp) (((resp)[0] >> 9) & 0xf)
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/* SPI mode response decoding */
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#define SD_SPI_R1(resp) ((resp)[0] & 0xff)
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#define SD_SPI_R2(resp) ((resp)[0] & 0xffff)
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#define SD_SPI_R3(resp) ((resp)[0])
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#define SD_SPI_R7(resp) ((resp)[0])
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/* RCA argument and response */
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#define MMC_ARG_RCA(rca) ((rca) << 16)
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#define SD_R6_RCA(resp) (SD_R6((resp)) >> 16)
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/* bus width argument */
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#define SD_ARG_BUS_WIDTH_1 0
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#define SD_ARG_BUS_WIDTH_4 2
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/* EXT_CSD fields */
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#define EXT_CSD_BUS_WIDTH 183 /* WO */
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#define EXT_CSD_HS_TIMING 185 /* R/W */
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#define EXT_CSD_REV 192 /* RO */
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#define EXT_CSD_STRUCTURE 194 /* RO */
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#define EXT_CSD_CARD_TYPE 196 /* RO */
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#define EXT_CSD_SEC_COUNT 212 /* RO */
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/* EXT_CSD field definitions */
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#define EXT_CSD_CMD_SET_NORMAL (1U << 0)
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#define EXT_CSD_CMD_SET_SECURE (1U << 1)
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#define EXT_CSD_CMD_SET_CPSECURE (1U << 2)
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/* EXT_CSD_HS_TIMING */
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#define EXT_CSD_HS_TIMING_BC 0
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#define EXT_CSD_HS_TIMING_HS 1
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#define EXT_CSD_HS_TIMING_HS200 2
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#define EXT_CSD_HS_TIMING_HS400 3
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/* EXT_CSD_BUS_WIDTH */
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#define EXT_CSD_BUS_WIDTH_1 0
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#define EXT_CSD_BUS_WIDTH_4 1
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#define EXT_CSD_BUS_WIDTH_8 2
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#define EXT_CSD_BUS_WIDTH_4_DDR 5
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#define EXT_CSD_BUS_WIDTH_8_DDR 6
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/* EXT_CSD_CARD_TYPE */
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/* The only currently valid values for this field are 0x01, 0x03, 0x07,
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* 0x0B and 0x0F. */
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#define EXT_CSD_CARD_TYPE_F_26M (1 << 0)
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#define EXT_CSD_CARD_TYPE_F_52M (1 << 1)
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#define EXT_CSD_CARD_TYPE_F_52M_1_8V (1 << 2)
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#define EXT_CSD_CARD_TYPE_F_52M_1_2V (1 << 3)
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#define EXT_CSD_CARD_TYPE_26M 0x01
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#define EXT_CSD_CARD_TYPE_52M 0x03
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#define EXT_CSD_CARD_TYPE_52M_V18 0x07
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#define EXT_CSD_CARD_TYPE_52M_V12 0x0b
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#define EXT_CSD_CARD_TYPE_52M_V12_18 0x0f
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/* MMC_SWITCH access mode */
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#define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
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#define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in value */
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#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in value */
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#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
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/* MMC R2 response (CSD) */
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#define MMC_CSD_CSDVER(resp) MMC_RSP_BITS((resp), 126, 2)
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#define MMC_CSD_CSDVER_1_0 1
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#define MMC_CSD_CSDVER_2_0 2
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#define MMC_CSD_CSDVER_EXT_CSD 3
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#define MMC_CSD_MMCVER(resp) MMC_RSP_BITS((resp), 122, 4)
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#define MMC_CSD_MMCVER_1_0 0 /* MMC 1.0 - 1.2 */
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#define MMC_CSD_MMCVER_1_4 1 /* MMC 1.4 */
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#define MMC_CSD_MMCVER_2_0 2 /* MMC 2.0 - 2.2 */
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#define MMC_CSD_MMCVER_3_1 3 /* MMC 3.1 - 3.3 */
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#define MMC_CSD_MMCVER_4_0 4 /* MMC 4 */
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#define MMC_CSD_READ_BL_LEN(resp) MMC_RSP_BITS((resp), 80, 4)
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#define MMC_CSD_C_SIZE(resp) MMC_RSP_BITS((resp), 62, 12)
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#define MMC_CSD_CAPACITY(resp) ((MMC_CSD_C_SIZE((resp))+1) << \
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(MMC_CSD_C_SIZE_MULT((resp))+2))
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#define MMC_CSD_C_SIZE_MULT(resp) MMC_RSP_BITS((resp), 47, 3)
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/* MMC v1 R2 response (CID) */
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#define MMC_CID_MID_V1(resp) MMC_RSP_BITS((resp), 104, 24)
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#define MMC_CID_PNM_V1_CPY(resp, pnm) \
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do { \
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(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
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(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
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(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
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(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
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(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
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(pnm)[5] = MMC_RSP_BITS((resp), 56, 8); \
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(pnm)[6] = MMC_RSP_BITS((resp), 48, 8); \
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(pnm)[7] = '\0'; \
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} while (0)
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#define MMC_CID_REV_V1(resp) MMC_RSP_BITS((resp), 40, 8)
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#define MMC_CID_PSN_V1(resp) MMC_RSP_BITS((resp), 16, 24)
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#define MMC_CID_MDT_V1(resp) MMC_RSP_BITS((resp), 8, 8)
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/* MMC v2 R2 response (CID) */
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#define MMC_CID_MID_V2(resp) MMC_RSP_BITS((resp), 120, 8)
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#define MMC_CID_OID_V2(resp) MMC_RSP_BITS((resp), 104, 16)
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#define MMC_CID_PNM_V2_CPY(resp, pnm) \
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do { \
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(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
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(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
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(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
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(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
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(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
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(pnm)[5] = MMC_RSP_BITS((resp), 56, 8); \
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(pnm)[6] = '\0'; \
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} while (0)
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#define MMC_CID_PSN_V2(resp) MMC_RSP_BITS((resp), 16, 32)
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/* SD R2 response (CSD) */
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#define SD_CSD_CSDVER(resp) MMC_RSP_BITS((resp), 126, 2)
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#define SD_CSD_CSDVER_1_0 0
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#define SD_CSD_CSDVER_2_0 1
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#define SD_CSD_TAAC(resp) MMC_RSP_BITS((resp), 112, 8)
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#define SD_CSD_TAAC_1_5_MSEC 0x26
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#define SD_CSD_NSAC(resp) MMC_RSP_BITS((resp), 104, 8)
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#define SD_CSD_SPEED(resp) MMC_RSP_BITS((resp), 96, 8)
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#define SD_CSD_SPEED_25_MHZ 0x32
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#define SD_CSD_SPEED_50_MHZ 0x5a
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#define SD_CSD_CCC(resp) MMC_RSP_BITS((resp), 84, 12)
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#define SD_CSD_CCC_BASIC (1 << 0) /* basic */
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#define SD_CSD_CCC_BR (1 << 2) /* block read */
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#define SD_CSD_CCC_BW (1 << 4) /* block write */
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#define SD_CSD_CCC_ERASE (1 << 5) /* erase */
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#define SD_CSD_CCC_WP (1 << 6) /* write protection */
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#define SD_CSD_CCC_LC (1 << 7) /* lock card */
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#define SD_CSD_CCC_AS (1 << 8) /*application specific*/
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#define SD_CSD_CCC_IOM (1 << 9) /* I/O mode */
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#define SD_CSD_CCC_SWITCH (1 << 10) /* switch */
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#define SD_CSD_READ_BL_LEN(resp) MMC_RSP_BITS((resp), 80, 4)
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#define SD_CSD_READ_BL_PARTIAL(resp) MMC_RSP_BITS((resp), 79, 1)
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#define SD_CSD_WRITE_BLK_MISALIGN(resp) MMC_RSP_BITS((resp), 78, 1)
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#define SD_CSD_READ_BLK_MISALIGN(resp) MMC_RSP_BITS((resp), 77, 1)
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#define SD_CSD_DSR_IMP(resp) MMC_RSP_BITS((resp), 76, 1)
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#define SD_CSD_C_SIZE(resp) MMC_RSP_BITS((resp), 62, 12)
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#define SD_CSD_CAPACITY(resp) ((SD_CSD_C_SIZE((resp))+1) << \
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(SD_CSD_C_SIZE_MULT((resp))+2))
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#define SD_CSD_V2_C_SIZE(resp) MMC_RSP_BITS((resp), 48, 22)
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#define SD_CSD_V2_CAPACITY(resp) ((SD_CSD_V2_C_SIZE((resp))+1) << 10)
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#define SD_CSD_V2_BL_LEN 0x9 /* 512 */
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#define SD_CSD_VDD_R_CURR_MIN(resp) MMC_RSP_BITS((resp), 59, 3)
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#define SD_CSD_VDD_R_CURR_MAX(resp) MMC_RSP_BITS((resp), 56, 3)
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#define SD_CSD_VDD_W_CURR_MIN(resp) MMC_RSP_BITS((resp), 53, 3)
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#define SD_CSD_VDD_W_CURR_MAX(resp) MMC_RSP_BITS((resp), 50, 3)
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#define SD_CSD_VDD_RW_CURR_100mA 0x7
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#define SD_CSD_VDD_RW_CURR_80mA 0x6
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#define SD_CSD_C_SIZE_MULT(resp) MMC_RSP_BITS((resp), 47, 3)
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#define SD_CSD_ERASE_BLK_EN(resp) MMC_RSP_BITS((resp), 46, 1)
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#define SD_CSD_SECTOR_SIZE(resp) MMC_RSP_BITS((resp), 39, 7) /* +1 */
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#define SD_CSD_WP_GRP_SIZE(resp) MMC_RSP_BITS((resp), 32, 7) /* +1 */
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#define SD_CSD_WP_GRP_ENABLE(resp) MMC_RSP_BITS((resp), 31, 1)
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#define SD_CSD_R2W_FACTOR(resp) MMC_RSP_BITS((resp), 26, 3)
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#define SD_CSD_WRITE_BL_LEN(resp) MMC_RSP_BITS((resp), 22, 4)
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#define SD_CSD_RW_BL_LEN_2G 0xa
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#define SD_CSD_RW_BL_LEN_1G 0x9
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#define SD_CSD_WRITE_BL_PARTIAL(resp) MMC_RSP_BITS((resp), 21, 1)
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#define SD_CSD_FILE_FORMAT_GRP(resp) MMC_RSP_BITS((resp), 15, 1)
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#define SD_CSD_COPY(resp) MMC_RSP_BITS((resp), 14, 1)
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#define SD_CSD_PERM_WRITE_PROTECT(resp) MMC_RSP_BITS((resp), 13, 1)
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#define SD_CSD_TMP_WRITE_PROTECT(resp) MMC_RSP_BITS((resp), 12, 1)
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#define SD_CSD_FILE_FORMAT(resp) MMC_RSP_BITS((resp), 10, 2)
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/* SD R2 response (CID) */
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#define SD_CID_MID(resp) MMC_RSP_BITS((resp), 120, 8)
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#define SD_CID_OID(resp) MMC_RSP_BITS((resp), 104, 16)
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#define SD_CID_PNM_CPY(resp, pnm) \
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do { \
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(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
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(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
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(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
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(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
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(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
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(pnm)[5] = '\0'; \
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} while (0)
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#define SD_CID_REV(resp) MMC_RSP_BITS((resp), 56, 8)
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#define SD_CID_PSN(resp) MMC_RSP_BITS((resp), 24, 32)
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#define SD_CID_MDT(resp) MMC_RSP_BITS((resp), 8, 12)
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/* SCR (SD Configuration Register) */
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#define SCR_STRUCTURE(scr) MMC_RSP_BITS((scr), 60, 4)
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#define SCR_STRUCTURE_VER_1_0 0 /* Version 1.0 */
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#define SCR_SD_SPEC(scr) MMC_RSP_BITS((scr), 56, 4)
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#define SCR_SD_SPEC_VER_1_0 0 /* Version 1.0 and 1.01 */
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#define SCR_SD_SPEC_VER_1_10 1 /* Version 1.10 */
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#define SCR_SD_SPEC_VER_2 2 /* Version 2.00 or Version 3.0X */
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#define SCR_DATA_STAT_AFTER_ERASE(scr) MMC_RSP_BITS((scr), 55, 1)
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#define SCR_SD_SECURITY(scr) MMC_RSP_BITS((scr), 52, 3)
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#define SCR_SD_SECURITY_NONE 0 /* no security */
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#define SCR_SD_SECURITY_1_0 1 /* security protocol 1.0 */
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#define SCR_SD_SECURITY_1_0_2 2 /* security protocol 1.0 */
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#define SCR_SD_BUS_WIDTHS(scr) MMC_RSP_BITS((scr), 48, 4)
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#define SCR_SD_BUS_WIDTHS_1BIT (1 << 0) /* 1bit (DAT0) */
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#define SCR_SD_BUS_WIDTHS_4BIT (1 << 2) /* 4bit (DAT0-3) */
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#define SCR_SD_SPEC3(scr) MMC_RSP_BITS((scr), 47, 1)
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#define SCR_EX_SECURITY(scr) MMC_RSP_BITS((scr), 43, 4)
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#define SCR_SD_SPEC4(scr) MMC_RSP_BITS((scr), 42, 1)
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#define SCR_RESERVED(scr) MMC_RSP_BITS((scr), 34, 8)
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#define SCR_CMD_SUPPORT_CMD23(scr) MMC_RSP_BITS((scr), 33, 1)
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#define SCR_CMD_SUPPORT_CMD20(scr) MMC_RSP_BITS((scr), 32, 1)
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#define SCR_RESERVED2(scr) MMC_RSP_BITS((scr), 0, 32)
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/* Max supply current in SWITCH_FUNC response (in mA) */
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#define SD_SFUNC_I_MAX(status) (MMC_RSP_BITS((uint32_t *)(status), 496, 16))
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/* Supported flags in SWITCH_FUNC response */
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#define SD_SFUNC_SUPPORTED(status, group) \
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(MMC_RSP_BITS((uint32_t *)(status), 400 + (group - 1) * 16, 16))
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/* Selected function in SWITCH_FUNC response */
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#define SD_SFUNC_SELECTED(status, group) \
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(MMC_RSP_BITS((uint32_t *)(status), 376 + (group - 1) * 4, 4))
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/* Busy flags in SWITCH_FUNC response */
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#define SD_SFUNC_BUSY(status, group) \
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(MMC_RSP_BITS((uint32_t *)(status), 272 + (group - 1) * 16, 16))
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/* Version of SWITCH_FUNC response */
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#define SD_SFUNC_VER(status) (MMC_RSP_BITS((uint32_t *)(status), 368, 8))
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#define SD_SFUNC_GROUP_MAX 6
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#define SD_SFUNC_FUNC_MAX 15
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#define SD_ACCESS_MODE 1 /* Function group 1, Access Mode */
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#define SD_ACCESS_MODE_SDR12 0 /* 25 MHz clock */
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#define SD_ACCESS_MODE_SDR25 1 /* 50 MHz clock */
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#define SD_ACCESS_MODE_SDR50 2 /* UHS-I, 100 MHz clock */
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#define SD_ACCESS_MODE_SDR104 3 /* UHS-I, 208 MHz clock */
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#define SD_ACCESS_MODE_DDR50 4 /* UHS-I, 50 MHz clock, DDR */
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/**
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* @brief Extract up to 32 sequential bits from an array of 32-bit words
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*
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* Bits within the word are numbered in the increasing order from LSB to MSB.
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*
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* As an example, consider 2 32-bit words:
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*
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* 0x01234567 0x89abcdef
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*
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* On a little-endian system, the bytes are stored in memory as follows:
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*
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* 67 45 23 01 ef cd ab 89
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*
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* MMC_RSP_BITS will extact bits as follows:
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*
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* start=0 len=4 -> result=0x00000007
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* start=0 len=12 -> result=0x00000567
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* start=28 len=8 -> result=0x000000f0
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* start=59 len=5 -> result=0x00000011
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*
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* @param src array of words to extract bits from
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* @param start index of the first bit to extract
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* @param len number of bits to extract, 1 to 32
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* @return 32-bit word where requested bits start from LSB
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*/
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static inline uint32_t MMC_RSP_BITS(uint32_t *src, int start, int len)
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{
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uint32_t mask = (len % 32 == 0) ? UINT_MAX : UINT_MAX >> (32 - (len % 32));
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size_t word = start / 32;
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size_t shift = start % 32;
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uint32_t right = src[word] >> shift;
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uint32_t left = (len + shift <= 32) ? 0 : src[word + 1] << ((32 - shift) % 32);
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return (left | right) & mask;
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}
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#endif //_SDMMC_DEFS_H_
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