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/* $OpenBSD: sdmmc_ioreg.h,v 1.11 2018/08/09 13:50:15 patrick Exp $ */
/*
* 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.
*/
#ifndef _SDMMC_IOREG_H
#define _SDMMC_IOREG_H
/* SDIO commands */ /* response type */
#define SD_IO_SEND_OP_COND 5 /* R4 */
#define SD_IO_RW_DIRECT 52 /* R5 */
#define SD_IO_RW_EXTENDED 53 /* R5? */
/* 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 511
/* 48-bit response decoding (32 bits w/o CRC) */
#define MMC_R4(resp) ((resp)[0])
#define MMC_R5(resp) ((resp)[0])
/* SD R4 response (IO OCR) */
#define SD_IO_OCR_MEM_READY (1<<31)
#define SD_IO_OCR_NUM_FUNCTIONS(ocr) (((ocr) >> 28) & 0x7)
/* XXX big fat memory present "flag" because we don't know better */
#define SD_IO_OCR_MEM_PRESENT (0xf<<24)
#define SD_IO_OCR_MASK 0x00fffff0
/* 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_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_MASK (3<<0)
#define SD_IO_CCCR_CISPTR 0x09 /* XXX 9-10, 10-11, or 9-12 */
#define SD_IO_CCCR_SPEED 0x13
#define CCCR_SPEED_SHS (1<<0)
#define CCCR_SPEED_EHS CCCR_SPEED_SDR25
#define CCCR_SPEED_SDR12 (0<<1)
#define CCCR_SPEED_SDR25 (1<<1)
#define CCCR_SPEED_SDR50 (2<<1)
#define CCCR_SPEED_SDR104 (3<<1)
#define CCCR_SPEED_DDR50 (4<<1)
#define CCCR_SPEED_MASK (0x7<<1)
/* Function Basic Registers (FBR) */
#define SD_IO_FBR_BASE(f) ((f) * 0x100)
#define SD_IO_FBR_BLOCKLEN 0x10
/* 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 SD_IO_CISTPL_NULL 0x00
#define SD_IO_CISTPL_VERS_1 0x15
#define SD_IO_CISTPL_MANFID 0x20
#define SD_IO_CISTPL_FUNCID 0x21
#define SD_IO_CISTPL_FUNCE 0x22
#define SD_IO_CISTPL_END 0xff
/* CISTPL_FUNCID codes */
#define TPLFID_FUNCTION_SDIO 0x0c
#endif
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