/*
* SPDX-FileCopyrightText: 2006 Uwe Stuehler <uwe@openbsd.org>
*
* SPDX-License-Identifier: ISC
*
* SPDX-FileContributor: 2016-2023 Espressif Systems (Shanghai) CO LTD
*/
/*
* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include <stdint.h>
#include <limits.h>
#ifdef __cplusplus
extern "C" {
#endif
/* MMC commands */ /* response type */
#define MMC_GO_IDLE_STATE 0 /* R0 */
#define MMC_SEND_OP_COND 1 /* R3 */
#define MMC_ALL_SEND_CID 2 /* R2 */
#define MMC_SET_RELATIVE_ADDR 3 /* R1 */
#define MMC_SWITCH 6 /* R1B */
#define MMC_SELECT_CARD 7 /* R1 */
#define MMC_SEND_EXT_CSD 8 /* R1 */
#define MMC_SEND_CSD 9 /* R2 */
#define MMC_SEND_CID 10 /* R1 */
#define MMC_READ_DAT_UNTIL_STOP 11 /* R1 */
#define MMC_STOP_TRANSMISSION 12 /* R1B */
#define MMC_SEND_STATUS 13 /* R1 */
#define MMC_SET_BLOCKLEN 16 /* R1 */
#define MMC_READ_BLOCK_SINGLE 17 /* R1 */
#define MMC_READ_BLOCK_MULTIPLE 18 /* R1 */
#define MMC_WRITE_DAT_UNTIL_STOP 20 /* R1 */
#define MMC_SET_BLOCK_COUNT 23 /* R1 */
#define MMC_WRITE_BLOCK_SINGLE 24 /* R1 */
#define MMC_WRITE_BLOCK_MULTIPLE 25 /* R1 */
#define MMC_ERASE_GROUP_START 35 /* R1 */
#define MMC_ERASE_GROUP_END 36 /* R1 */
#define MMC_ERASE 38 /* R1B */
#define MMC_APP_CMD 55 /* R1 */
/* SD commands */ /* response type */
#define SD_SEND_RELATIVE_ADDR 3 /* R6 */
#define SD_SEND_SWITCH_FUNC 6 /* R1 */
#define SD_SEND_IF_COND 8 /* R7 */
#define SD_ERASE_GROUP_START 32 /* R1 */
#define SD_ERASE_GROUP_END 33 /* R1 */
#define SD_READ_OCR 58 /* R3 */
#define SD_CRC_ON_OFF 59 /* R1 */
/* SD application commands */ /* response type */
#define SD_APP_SET_BUS_WIDTH 6 /* R1 */
#define SD_APP_SD_STATUS 13 /* R2 */
#define SD_APP_OP_COND 41 /* R3 */
#define SD_APP_SEND_SCR 51 /* R1 */
/* SD IO commands */
#define SD_IO_SEND_OP_COND 5 /* R4 */
#define SD_IO_RW_DIRECT 52 /* R5 */
#define SD_IO_RW_EXTENDED 53 /* R5 */
/* OCR bits */
#define MMC_OCR_MEM_READY (1<<31) /* memory power-up status bit */
#define MMC_OCR_ACCESS_MODE_MASK 0x60000000 /* bits 30:29 */
#define MMC_OCR_SECTOR_MODE (1<<30)
#define MMC_OCR_BYTE_MODE (1<<29)
#define MMC_OCR_3_5V_3_6V (1<<23)
#define MMC_OCR_3_4V_3_5V (1<<22)
#define MMC_OCR_3_3V_3_4V (1<<21)
#define MMC_OCR_3_2V_3_3V (1<<20)
#define MMC_OCR_3_1V_3_2V (1<<19)
#define MMC_OCR_3_0V_3_1V (1<<18)
#define MMC_OCR_2_9V_3_0V (1<<17)
#define MMC_OCR_2_8V_2_9V (1<<16)
#define MMC_OCR_2_7V_2_8V (1<<15)
#define MMC_OCR_2_6V_2_7V (1<<14)
#define MMC_OCR_2_5V_2_6V (1<<13)
#define MMC_OCR_2_4V_2_5V (1<<12)
#define MMC_OCR_2_3V_2_4V (1<<11)
#define MMC_OCR_2_2V_2_3V (1<<10)
#define MMC_OCR_2_1V_2_2V (1<<9)
#define MMC_OCR_2_0V_2_1V (1<<8)
#define MMC_OCR_1_65V_1_95V (1<<7)
#define SD_OCR_SDHC_CAP (1<<30)
#define SD_OCR_VOL_MASK 0xFF8000 /* bits 23:15 */
/* SD mode R1 response type bits */
#define MMC_R1_READY_FOR_DATA (1<<8) /* ready for next transfer */
#define MMC_R1_APP_CMD (1<<5) /* app. commands supported */
#define MMC_R1_SWITCH_ERROR (1<<7) /* switch command did not succeed */
#define MMC_R1_CURRENT_STATE_POS (9)
#define MMC_R1_CURRENT_STATE_MASK (0x1E00)/* card current state */
#define MMC_R1_CURRENT_STATE_TRAN (4)
/* SPI mode R1 response type bits */
#define SD_SPI_R1_IDLE_STATE (1<<0)
#define SD_SPI_R1_ERASE_RST (1<<1)
#define SD_SPI_R1_ILLEGAL_CMD (1<<2)
#define SD_SPI_R1_CMD_CRC_ERR (1<<3)
#define SD_SPI_R1_ERASE_SEQ_ERR (1<<4)
#define SD_SPI_R1_ADDR_ERR (1<<5)
#define SD_SPI_R1_PARAM_ERR (1<<6)
#define SD_SPI_R1_NO_RESPONSE (1<<7)
#define SDIO_R1_FUNC_NUM_ERR (1<<4)
/* SPI mode R2 response type bits.
* The first byte is the same as for R1.
* The bits below belong to the second byte.
* Bits 10, 11, 12, 15 can also be reported in data error token of a read command response.
*/
#define SD_SPI_R2_CARD_LOCKED (1<<8) /* Set when the card is locked by the user */
#define SD_SPI_R2_UNLOCK_FAILED (1<<9) /* Host attempts to erase a write-protected sector or makes an error during card lock/unlock operation */
#define SD_SPI_R2_ERROR (1<<10) /* A general or an unknown error occurred during the operation */
#define SD_SPI_R2_CC_ERROR (1<<11) /* Internal card controller error */
#define SD_SPI_R2_ECC_FAILED (1<<12) /* Card internal ECC was applied but failed to correct the data */
#define SD_SPI_R2_WP_VIOLATION (1<<13) /* The command tried to write a write-protected block */
#define SD_SPI_R2_ERASE_PARAM (1<<14) /* An invalid selection for erase, sectors or groups */
#define SD_SPI_R2_OUT_OF_RANGE (1<<15) /* The command argument was out of the allowed range for this card */
/* 48-bit response decoding (32 bits w/o CRC) */
#define MMC_R1(resp) ((resp)[0])
#define MMC_R3(resp) ((resp)[0])
#define MMC_R4(resp) ((resp)[0])
#define MMC_R5(resp) ((resp)[0])
#define SD_R6(resp) ((resp)[0])
#define MMC_R1_CURRENT_STATE(resp) (((resp)[0] >> 9) & 0xf)
/* SPI mode response decoding */
#define SD_SPI_R1(resp) ((resp)[0] & 0xff)
#define SD_SPI_R2(resp) ((resp)[0] & 0xffff)
#define SD_SPI_R3(resp) ((resp)[0])
#define SD_SPI_R7(resp) ((resp)[0])
/* SPI mode data response decoding */
#define SD_SPI_DATA_RSP_VALID(resp_byte) (((resp_byte)&0x11)==0x1)
#define SD_SPI_DATA_RSP(resp_byte) (((resp_byte)>>1)&0x7)
#define SD_SPI_DATA_ACCEPTED 0x2
#define SD_SPI_DATA_CRC_ERROR 0x5
#define SD_SPI_DATA_WR_ERROR 0x6
/* RCA argument and response */
#define MMC_ARG_RCA(rca) ((rca) << 16)
#define SD_R6_RCA(resp) (SD_R6((resp)) >> 16)
/* bus width argument */
#define SD_ARG_BUS_WIDTH_1 0
#define SD_ARG_BUS_WIDTH_4 2
/* EXT_CSD fields */
#define EXT_CSD_SANITIZE_START 165 /* WO */
#define EXT_CSD_ERASED_MEM_CONT 181 /* RO */
#define EXT_CSD_BUS_WIDTH 183 /* WO */
#define EXT_CSD_HS_TIMING 185 /* R/W */
#define EXT_CSD_POWER_CLASS 187 /* R/W */
#define EXT_CSD_CMD_SET 191 /* R/W */
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_STRUCTURE 194 /* RO */
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_PWR_CL_52_195 200 /* RO */
#define EXT_CSD_PWR_CL_26_195 201 /* RO */
#define EXT_CSD_PWR_CL_52_360 202 /* RO */
#define EXT_CSD_PWR_CL_26_360 203 /* RO */
#define EXT_CSD_SEC_COUNT 212 /* RO */
#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */
#define EXT_CSD_S_CMD_SET 504 /* RO */
/* EXT_CSD field definitions */
#define EXT_CSD_REV_1_6 6 /* Revision 1.6 (for MMC v4.5, v4.51) */
#define EXT_CSD_CMD_SET_NORMAL (1U << 0)
#define EXT_CSD_CMD_SET_SECURE (1U << 1)
#define EXT_CSD_CMD_SET_CPSECURE (1U << 2)
/* EXT_CSD_HS_TIMING */
#define EXT_CSD_HS_TIMING_BC 0
#define EXT_CSD_HS_TIMING_HS 1
#define EXT_CSD_HS_TIMING_HS200 2
#define EXT_CSD_HS_TIMING_HS400 3
/* EXT_CSD_BUS_WIDTH */
#define EXT_CSD_BUS_WIDTH_1 0
#define EXT_CSD_BUS_WIDTH_4 1
#define EXT_CSD_BUS_WIDTH_8 2
#define EXT_CSD_BUS_WIDTH_4_DDR 5
#define EXT_CSD_BUS_WIDTH_8_DDR 6
/* EXT_CSD_CARD_TYPE */
/* The only currently valid values for this field are 0x01, 0x03, 0x07,
* 0x0B and 0x0F. */
#define EXT_CSD_CARD_TYPE_F_26M (1 << 0) /* SDR at "rated voltages */
#define EXT_CSD_CARD_TYPE_F_52M (1 << 1) /* SDR at "rated voltages */
#define EXT_CSD_CARD_TYPE_F_52M_1_8V (1 << 2) /* DDR, 1.8V or 3.3V I/O */
#define EXT_CSD_CARD_TYPE_F_52M_1_2V (1 << 3) /* DDR, 1.2V I/O */
#define EXT_CSD_CARD_TYPE_26M 0x01
#define EXT_CSD_CARD_TYPE_52M 0x03
#define EXT_CSD_CARD_TYPE_52M_V18 0x07
#define EXT_CSD_CARD_TYPE_52M_V12 0x0b
#define EXT_CSD_CARD_TYPE_52M_V12_18 0x0f
/* EXT_CSD_SEC_FEATURE_SUPPORT */
#define EXT_CSD_SECURE_ER_EN (uint8_t)(1 << 0)
#define EXT_CSD_SEC_BD_BLK_EN (uint8_t)(1 << 2)
#define EXT_CSD_SEC_GB_CL_EN (uint8_t)(1 << 4)
#define EXT_CSD_SEC_SANITIZE (uint8_t)(1 << 6)
/* EXT_CSD MMC */
#define EXT_CSD_MMC_SIZE 512
/* MMC_SWITCH access mode */
#define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
#define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in value */
#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in value */
#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
/* MMC R2 response (CSD) */
#define MMC_CSD_CSDVER(resp) MMC_RSP_BITS((resp), 126, 2)
#define MMC_CSD_CSDVER_1_0 1
#define MMC_CSD_CSDVER_2_0 2
#define MMC_CSD_CSDVER_EXT_CSD 3
#define MMC_CSD_MMCVER(resp) MMC_RSP_BITS((resp), 122, 4)
#define MMC_CSD_MMCVER_1_0 0 /* MMC 1.0 - 1.2 */
#define MMC_CSD_MMCVER_1_4 1 /* MMC 1.4 */
#define MMC_CSD_MMCVER_2_0 2 /* MMC 2.0 - 2.2 */
#define MMC_CSD_MMCVER_3_1 3 /* MMC 3.1 - 3.3 */
#define MMC_CSD_MMCVER_4_0 4 /* MMC 4 */
#define MMC_CSD_READ_BL_LEN(resp) MMC_RSP_BITS((resp), 80, 4)
#define MMC_CSD_C_SIZE(resp) MMC_RSP_BITS((resp), 62, 12)
#define MMC_CSD_CAPACITY(resp) ((MMC_CSD_C_SIZE((resp))+1) << \
(MMC_CSD_C_SIZE_MULT((resp))+2))
#define MMC_CSD_C_SIZE_MULT(resp) MMC_RSP_BITS((resp), 47, 3)
/* MMC v1 R2 response (CID) */
#define MMC_CID_MID_V1(resp) MMC_RSP_BITS((resp), 104, 24)
#define MMC_CID_PNM_V1_CPY(resp, pnm) \
do { \
(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
(pnm)[5] = MMC_RSP_BITS((resp), 56, 8); \
(pnm)[6] = MMC_RSP_BITS((resp), 48, 8); \
(pnm)[7] = '\0'; \
} while (0)
#define MMC_CID_REV_V1(resp) MMC_RSP_BITS((resp), 40, 8)
#define MMC_CID_PSN_V1(resp) MMC_RSP_BITS((resp), 16, 24)
#define MMC_CID_MDT_V1(resp) MMC_RSP_BITS((resp), 8, 8)
/* MMC v2 R2 response (CID) */
#define MMC_CID_MID_V2(resp) MMC_RSP_BITS((resp), 120, 8)
#define MMC_CID_OID_V2(resp) MMC_RSP_BITS((resp), 104, 16)
#define MMC_CID_PNM_V2_CPY(resp, pnm) \
do { \
(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
(pnm)[5] = MMC_RSP_BITS((resp), 56, 8); \
(pnm)[6] = '\0'; \
} while (0)
#define MMC_CID_PSN_V2(resp) MMC_RSP_BITS((resp), 16, 32)
/* SD R2 response (CSD) */
#define SD_CSD_CSDVER(resp) MMC_RSP_BITS((resp), 126, 2)
#define SD_CSD_CSDVER_1_0 0
#define SD_CSD_CSDVER_2_0 1
#define SD_CSD_TAAC(resp) MMC_RSP_BITS((resp), 112, 8)
#define SD_CSD_TAAC_1_5_MSEC 0x26
#define SD_CSD_NSAC(resp) MMC_RSP_BITS((resp), 104, 8)
#define SD_CSD_SPEED(resp) MMC_RSP_BITS((resp), 96, 8)
#define SD_CSD_SPEED_25_MHZ 0x32
#define SD_CSD_SPEED_50_MHZ 0x5a
#define SD_CSD_CCC(resp) MMC_RSP_BITS((resp), 84, 12)
#define SD_CSD_CCC_BASIC (1 << 0) /* basic */
#define SD_CSD_CCC_BR (1 << 2) /* block read */
#define SD_CSD_CCC_BW (1 << 4) /* block write */
#define SD_CSD_CCC_ERASE (1 << 5) /* erase */
#define SD_CSD_CCC_WP (1 << 6) /* write protection */
#define SD_CSD_CCC_LC (1 << 7) /* lock card */
#define SD_CSD_CCC_AS (1 << 8) /*application specific*/
#define SD_CSD_CCC_IOM (1 << 9) /* I/O mode */
#define SD_CSD_CCC_SWITCH (1 << 10) /* switch */
#define SD_CSD_READ_BL_LEN(resp) MMC_RSP_BITS((resp), 80, 4)
#define SD_CSD_READ_BL_PARTIAL(resp) MMC_RSP_BITS((resp), 79, 1)
#define SD_CSD_WRITE_BLK_MISALIGN(resp) MMC_RSP_BITS((resp), 78, 1)
#define SD_CSD_READ_BLK_MISALIGN(resp) MMC_RSP_BITS((resp), 77, 1)
#define SD_CSD_DSR_IMP(resp) MMC_RSP_BITS((resp), 76, 1)
#define SD_CSD_C_SIZE(resp) MMC_RSP_BITS((resp), 62, 12)
#define SD_CSD_CAPACITY(resp) ((SD_CSD_C_SIZE((resp))+1) << \
(SD_CSD_C_SIZE_MULT((resp))+2))
#define SD_CSD_V2_C_SIZE(resp) MMC_RSP_BITS((resp), 48, 22)
#define SD_CSD_V2_CAPACITY(resp) ((SD_CSD_V2_C_SIZE((resp))+1) << 10)
#define SD_CSD_V2_BL_LEN 0x9 /* 512 */
#define SD_CSD_VDD_R_CURR_MIN(resp) MMC_RSP_BITS((resp), 59, 3)
#define SD_CSD_VDD_R_CURR_MAX(resp) MMC_RSP_BITS((resp), 56, 3)
#define SD_CSD_VDD_W_CURR_MIN(resp) MMC_RSP_BITS((resp), 53, 3)
#define SD_CSD_VDD_W_CURR_MAX(resp) MMC_RSP_BITS((resp), 50, 3)
#define SD_CSD_VDD_RW_CURR_100mA 0x7
#define SD_CSD_VDD_RW_CURR_80mA 0x6
#define SD_CSD_C_SIZE_MULT(resp) MMC_RSP_BITS((resp), 47, 3)
#define SD_CSD_ERASE_BLK_EN(resp) MMC_RSP_BITS((resp), 46, 1)
#define SD_CSD_SECTOR_SIZE(resp) MMC_RSP_BITS((resp), 39, 7) /* +1 */
#define SD_CSD_WP_GRP_SIZE(resp) MMC_RSP_BITS((resp), 32, 7) /* +1 */
#define SD_CSD_WP_GRP_ENABLE(resp) MMC_RSP_BITS((resp), 31, 1)
#define SD_CSD_R2W_FACTOR(resp) MMC_RSP_BITS((resp), 26, 3)
#define SD_CSD_WRITE_BL_LEN(resp) MMC_RSP_BITS((resp), 22, 4)
#define SD_CSD_RW_BL_LEN_2G 0xa
#define SD_CSD_RW_BL_LEN_1G 0x9
#define SD_CSD_WRITE_BL_PARTIAL(resp) MMC_RSP_BITS((resp), 21, 1)
#define SD_CSD_FILE_FORMAT_GRP(resp) MMC_RSP_BITS((resp), 15, 1)
#define SD_CSD_COPY(resp) MMC_RSP_BITS((resp), 14, 1)
#define SD_CSD_PERM_WRITE_PROTECT(resp) MMC_RSP_BITS((resp), 13, 1)
#define SD_CSD_TMP_WRITE_PROTECT(resp) MMC_RSP_BITS((resp), 12, 1)
#define SD_CSD_FILE_FORMAT(resp) MMC_RSP_BITS((resp), 10, 2)
/* SD R2 response (CID) */
#define SD_CID_MID(resp) MMC_RSP_BITS((resp), 120, 8)
#define SD_CID_OID(resp) MMC_RSP_BITS((resp), 104, 16)
#define SD_CID_PNM_CPY(resp, pnm) \
do { \
(pnm)[0] = MMC_RSP_BITS((resp), 96, 8); \
(pnm)[1] = MMC_RSP_BITS((resp), 88, 8); \
(pnm)[2] = MMC_RSP_BITS((resp), 80, 8); \
(pnm)[3] = MMC_RSP_BITS((resp), 72, 8); \
(pnm)[4] = MMC_RSP_BITS((resp), 64, 8); \
(pnm)[5] = '\0'; \
} while (0)
#define SD_CID_REV(resp) MMC_RSP_BITS((resp), 56, 8)
#define SD_CID_PSN(resp) MMC_RSP_BITS((resp), 24, 32)
#define SD_CID_MDT(resp) MMC_RSP_BITS((resp), 8, 12)
/* SCR (SD Configuration Register) */
#define SCR_STRUCTURE(scr) MMC_RSP_BITS((scr), 60, 4)
#define SCR_STRUCTURE_VER_1_0 0 /* Version 1.0 */
#define SCR_SD_SPEC(scr) MMC_RSP_BITS((scr), 56, 4)
#define SCR_SD_SPEC_VER_1_0 0 /* Version 1.0 and 1.01 */
#define SCR_SD_SPEC_VER_1_10 1 /* Version 1.10 */
#define SCR_SD_SPEC_VER_2 2 /* Version 2.00 or Version 3.0X */
#define SCR_DATA_STAT_AFTER_ERASE(scr) MMC_RSP_BITS((scr), 55, 1)
#define SCR_SD_SECURITY(scr) MMC_RSP_BITS((scr), 52, 3)
#define SCR_SD_SECURITY_NONE 0 /* no security */
#define SCR_SD_SECURITY_1_0 1 /* security protocol 1.0 */
#define SCR_SD_SECURITY_1_0_2 2 /* security protocol 1.0 */
#define SCR_SD_BUS_WIDTHS(scr) MMC_RSP_BITS((scr), 48, 4)
#define SCR_SD_BUS_WIDTHS_1BIT (1 << 0) /* 1bit (DAT0) */
#define SCR_SD_BUS_WIDTHS_4BIT (1 << 2) /* 4bit (DAT0-3) */
#define SCR_SD_SPEC3(scr) MMC_RSP_BITS((scr), 47, 1)
#define SCR_EX_SECURITY(scr) MMC_RSP_BITS((scr), 43, 4)
#define SCR_SD_SPEC4(scr) MMC_RSP_BITS((scr), 42, 1)
#define SCR_RESERVED(scr) MMC_RSP_BITS((scr), 34, 8)
#define SCR_CMD_SUPPORT_CMD23(scr) MMC_RSP_BITS((scr), 33, 1)
#define SCR_CMD_SUPPORT_CMD20(scr) MMC_RSP_BITS((scr), 32, 1)
#define SCR_RESERVED2(scr) MMC_RSP_BITS((scr), 0, 32)
/* SSR (SD Status Register) */
#define SSR_DAT_BUS_WIDTH(ssr) MMC_RSP_BITS((ssr), 510, 2)
#define SSR_AU_SIZE(ssr) MMC_RSP_BITS((ssr), 428, 4)
#define SSR_ERASE_SIZE(ssr) MMC_RSP_BITS((ssr), 408, 16)
#define SSR_ERASE_TIMEOUT(ssr) MMC_RSP_BITS((ssr), 402, 6)
#define SSR_ERASE_OFFSET(ssr) MMC_RSP_BITS((ssr), 400, 2)
#define SSR_DISCARD_SUPPORT(ssr) MMC_RSP_BITS((ssr), 313, 1)
#define SSR_FULE_SUPPORT(ssr) MMC_RSP_BITS((ssr), 312, 1)
/* Max supply current in SWITCH_FUNC response (in mA) */
#define SD_SFUNC_I_MAX(status) (MMC_RSP_BITS((uint32_t *)(status), 496, 16))
/* Supported flags in SWITCH_FUNC response */
#define SD_SFUNC_SUPPORTED(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 400 + (group - 1) * 16, 16))
/* Selected function in SWITCH_FUNC response */
#define SD_SFUNC_SELECTED(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 376 + (group - 1) * 4, 4))
/* Busy flags in SWITCH_FUNC response */
#define SD_SFUNC_BUSY(status, group) \
(MMC_RSP_BITS((uint32_t *)(status), 272 + (group - 1) * 16, 16))
/* Version of SWITCH_FUNC response */
#define SD_SFUNC_VER(status) (MMC_RSP_BITS((uint32_t *)(status), 368, 8))
#define SD_SFUNC_GROUP_MAX 6
#define SD_SFUNC_FUNC_MAX 15
#define SD_ACCESS_MODE 1 /* Function group 1, Access Mode */
#define SD_ACCESS_MODE_SDR12 0 /* 25 MHz clock */
#define SD_ACCESS_MODE_SDR25 1 /* 50 MHz clock */
#define SD_ACCESS_MODE_SDR50 2 /* UHS-I, 100 MHz clock */
#define SD_ACCESS_MODE_SDR104 3 /* UHS-I, 208 MHz clock */
#define SD_ACCESS_MODE_DDR50 4 /* UHS-I, 50 MHz clock, DDR */
#define SD_SSR_SIZE 64 /* SD status register */
/**
* @brief Extract up to 32 sequential bits from an array of 32-bit words
*
* Bits within the word are numbered in the increasing order from LSB to MSB.
*
* As an example, consider 2 32-bit words:
*
* 0x01234567 0x89abcdef
*
* On a little-endian system, the bytes are stored in memory as follows:
*
* 67 45 23 01 ef cd ab 89
*
* MMC_RSP_BITS will extact bits as follows:
*
* start=0 len=4 -> result=0x00000007
* start=0 len=12 -> result=0x00000567
* start=28 len=8 -> result=0x000000f0
* start=59 len=5 -> result=0x00000011
*
* @param src array of words to extract bits from
* @param start index of the first bit to extract
* @param len number of bits to extract, 1 to 32
* @return 32-bit word where requested bits start from LSB
*/
static inline uint32_t MMC_RSP_BITS(uint32_t *src, int start, int len)
{
uint32_t mask = (len % 32 == 0) ? UINT_MAX : UINT_MAX >> (32 - (len % 32));
size_t word = start / 32;
size_t shift = start % 32;
uint32_t right = src[word] >> shift;
uint32_t left = (len + shift <= 32) ? 0 : src[word + 1] << ((32 - shift) % 32);
return (left | right) & mask;
}
/* SD R4 response (IO OCR) */
#define SD_IO_OCR_MEM_READY (1<<31)
#define SD_IO_OCR_NUM_FUNCTIONS(ocr) (((ocr) >> 28) & 0x7)
#define SD_IO_OCR_MEM_PRESENT (1<<27)
#define SD_IO_OCR_MASK 0x00fffff0
/* CMD52 arguments */
#define SD_ARG_CMD52_READ (0<<31)
#define SD_ARG_CMD52_WRITE (1<<31)
#define SD_ARG_CMD52_FUNC_SHIFT 28
#define SD_ARG_CMD52_FUNC_MASK 0x7
#define SD_ARG_CMD52_EXCHANGE (1<<27)
#define SD_ARG_CMD52_REG_SHIFT 9
#define SD_ARG_CMD52_REG_MASK 0x1ffff
#define SD_ARG_CMD52_DATA_SHIFT 0
#define SD_ARG_CMD52_DATA_MASK 0xff
#define SD_R5_DATA(resp) ((resp)[0] & 0xff)
/* CMD53 arguments */
#define SD_ARG_CMD53_READ (0<<31)
#define SD_ARG_CMD53_WRITE (1<<31)
#define SD_ARG_CMD53_FUNC_SHIFT 28
#define SD_ARG_CMD53_FUNC_MASK 0x7
#define SD_ARG_CMD53_BLOCK_MODE (1<<27)
#define SD_ARG_CMD53_INCREMENT (1<<26)
#define SD_ARG_CMD53_REG_SHIFT 9
#define SD_ARG_CMD53_REG_MASK 0x1ffff
#define SD_ARG_CMD53_LENGTH_SHIFT 0
#define SD_ARG_CMD53_LENGTH_MASK 0x1ff
#define SD_ARG_CMD53_LENGTH_MAX 512
/* Card Common Control Registers (CCCR) */
#define SD_IO_CCCR_START 0x00000
#define SD_IO_CCCR_SIZE 0x100
#define SD_IO_CCCR_FN_ENABLE 0x02
#define SD_IO_CCCR_FN_READY 0x03
#define SD_IO_CCCR_INT_ENABLE 0x04
#define SD_IO_CCCR_INT_PENDING 0x05
#define SD_IO_CCCR_CTL 0x06
#define CCCR_CTL_RES (1<<3)
#define SD_IO_CCCR_BUS_WIDTH 0x07
#define CCCR_BUS_WIDTH_1 (0<<0)
#define CCCR_BUS_WIDTH_4 (2<<0)
#define CCCR_BUS_WIDTH_8 (3<<0)
#define CCCR_BUS_WIDTH_ECSI (1<<5)
#define SD_IO_CCCR_CARD_CAP 0x08
#define CCCR_CARD_CAP_LSC BIT(6)
#define CCCR_CARD_CAP_4BLS BIT(7)
#define SD_IO_CCCR_CISPTR 0x09
#define SD_IO_CCCR_BLKSIZEL 0x10
#define SD_IO_CCCR_BLKSIZEH 0x11
#define SD_IO_CCCR_HIGHSPEED 0x13
#define CCCR_HIGHSPEED_SUPPORT BIT(0)
#define CCCR_HIGHSPEED_ENABLE BIT(1)
/* Function Basic Registers (FBR) */
#define SD_IO_FBR_START 0x00100
#define SD_IO_FBR_SIZE 0x00700
/* Card Information Structure (CIS) */
#define SD_IO_CIS_START 0x01000
#define SD_IO_CIS_SIZE 0x17000
/* CIS tuple codes (based on PC Card 16) */
#define CISTPL_CODE_NULL 0x00
#define CISTPL_CODE_DEVICE 0x01
#define CISTPL_CODE_CHKSUM 0x10
#define CISTPL_CODE_VERS1 0x15
#define CISTPL_CODE_ALTSTR 0x16
#define CISTPL_CODE_CONFIG 0x1A
#define CISTPL_CODE_CFTABLE_ENTRY 0x1B
#define CISTPL_CODE_MANFID 0x20
#define CISTPL_CODE_FUNCID 0x21
#define TPLFID_FUNCTION_SDIO 0x0c
#define CISTPL_CODE_FUNCE 0x22
#define CISTPL_CODE_VENDER_BEGIN 0x80
#define CISTPL_CODE_VENDER_END 0x8F
#define CISTPL_CODE_SDIO_STD 0x91
#define CISTPL_CODE_SDIO_EXT 0x92
#define CISTPL_CODE_END 0xFF
/* Timing */
#define SDMMC_TIMING_LEGACY 0
#define SDMMC_TIMING_HIGHSPEED 1
#define SDMMC_TIMING_MMC_DDR52 2
#ifdef __cplusplus
}
#endif