include/linux/mmc/sdio.h

   1 /*
   2  *  include/linux/mmc/sdio.h
   3  *
   4  *  Copyright 2006-2007 Pierre Ossman
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or (at
   9  * your option) any later version.
  10  */
  11
  12 #ifndef MMC_SDIO_H
  13 #define MMC_SDIO_H
  14
  15 /* SDIO commands                         type  argument     response */
  16 #define SD_IO_SEND_OP_COND          5 /* bcr  [23:0] OCR         R4  */
  17 #define SD_IO_RW_DIRECT            52 /* ac   [31:0] See below   R5  */
  18 #define SD_IO_RW_EXTENDED          53 /* adtc [31:0] See below   R5  */
  19
  20 /*
  21  * SD_IO_RW_DIRECT argument format:
  22  *
  23  *      [31] R/W flag
  24  *      [30:28] Function number
  25  *      [27] RAW flag
  26  *      [25:9] Register address
  27  *      [7:0] Data
  28  */
  29
  30 /*
  31  * SD_IO_RW_EXTENDED argument format:
  32  *
  33  *      [31] R/W flag
  34  *      [30:28] Function number
  35  *      [27] Block mode
  36  *      [26] Increment address
  37  *      [25:9] Register address
  38  *      [8:0] Byte/block count
  39  */
  40
  41 /*
  42   SDIO status in R5
  43   Type
  44         e : error bit
  45         s : status bit
  46         r : detected and set for the actual command response
  47         x : detected and set during command execution. the host must poll
  48             the card by sending status command in order to read these bits.
  49   Clear condition
  50         a : according to the card state
  51         b : always related to the previous command. Reception of
  52             a valid command will clear it (with a delay of one command)
  53         c : clear by read
  54  */
  55
  56 #define R5_COM_CRC_ERROR        (1 << 15)       /* er, b */
  57 #define R5_ILLEGAL_COMMAND      (1 << 14)       /* er, b */
  58 #define R5_ERROR                (1 << 11)       /* erx, c */
  59 #define R5_FUNCTION_NUMBER      (1 << 9)        /* er, c */
  60 #define R5_OUT_OF_RANGE         (1 << 8)        /* er, c */
  61 #define R5_STATUS(x)            (x & 0xCB00)
  62 #define R5_IO_CURRENT_STATE(x)  ((x & 0x3000) >> 12) /* s, b */
  63
  64 /*
  65  * Card Common Control Registers (CCCR)
  66  */
  67
  68 #define SDIO_CCCR_CCCR          0x00
  69
  70 #define  SDIO_CCCR_REV_1_00     0       /* CCCR/FBR Version 1.00 */
  71 #define  SDIO_CCCR_REV_1_10     1       /* CCCR/FBR Version 1.10 */
  72 #define  SDIO_CCCR_REV_1_20     2       /* CCCR/FBR Version 1.20 */
  73
  74 #define  SDIO_SDIO_REV_1_00     0       /* SDIO Spec Version 1.00 */
  75 #define  SDIO_SDIO_REV_1_10     1       /* SDIO Spec Version 1.10 */
  76 #define  SDIO_SDIO_REV_1_20     2       /* SDIO Spec Version 1.20 */
  77 #define  SDIO_SDIO_REV_2_00     3       /* SDIO Spec Version 2.00 */
  78
  79 #define SDIO_CCCR_SD            0x01
  80
  81 #define  SDIO_SD_REV_1_01       0       /* SD Physical Spec Version 1.01 */
  82 #define  SDIO_SD_REV_1_10       1       /* SD Physical Spec Version 1.10 */
  83 #define  SDIO_SD_REV_2_00       2       /* SD Physical Spec Version 2.00 */
  84
  85 #define SDIO_CCCR_IOEx          0x02
  86 #define SDIO_CCCR_IORx          0x03
  87
  88 #define SDIO_CCCR_IENx          0x04    /* Function/Master Interrupt Enable */
  89 #define SDIO_CCCR_INTx          0x05    /* Function Interrupt Pending */
  90
  91 #define SDIO_CCCR_ABORT         0x06    /* function abort/card reset */
  92
  93 #define SDIO_CCCR_IF            0x07    /* bus interface controls */
  94
  95 #define  SDIO_BUS_WIDTH_1BIT    0x00
  96 #define  SDIO_BUS_WIDTH_4BIT    0x02
  97
  98 #define  SDIO_BUS_CD_DISABLE     0x80   /* disable pull-up on DAT3 (pin 1) */
  99
 100 #define SDIO_CCCR_CAPS          0x08
 101
 102 #define  SDIO_CCCR_CAP_SDC      0x01    /* can do CMD52 while data transfer */
 103 #define  SDIO_CCCR_CAP_SMB      0x02    /* can do multi-block xfers (CMD53) */
 104 #define  SDIO_CCCR_CAP_SRW      0x04    /* supports read-wait protocol */
 105 #define  SDIO_CCCR_CAP_SBS      0x08    /* supports suspend/resume */
 106 #define  SDIO_CCCR_CAP_S4MI     0x10    /* interrupt during 4-bit CMD53 */
 107 #define  SDIO_CCCR_CAP_E4MI     0x20    /* enable ints during 4-bit CMD53 */
 108 #define  SDIO_CCCR_CAP_LSC      0x40    /* low speed card */
 109 #define  SDIO_CCCR_CAP_4BLS     0x80    /* 4 bit low speed card */
 110
 111 #define SDIO_CCCR_CIS           0x09    /* common CIS pointer (3 bytes) */
 112
 113 /* Following 4 regs are valid only if SBS is set */
 114 #define SDIO_CCCR_SUSPEND       0x0c
 115 #define SDIO_CCCR_SELx          0x0d
 116 #define SDIO_CCCR_EXECx         0x0e
 117 #define SDIO_CCCR_READYx        0x0f
 118
 119 #define SDIO_CCCR_BLKSIZE       0x10
 120
 121 #define SDIO_CCCR_POWER         0x12
 122
 123 #define  SDIO_POWER_SMPC        0x01    /* Supports Master Power Control */
 124 #define  SDIO_POWER_EMPC        0x02    /* Enable Master Power Control */
 125
 126 #define SDIO_CCCR_SPEED         0x13
 127
 128 #define  SDIO_SPEED_SHS         0x01    /* Supports High-Speed mode */
 129 #define  SDIO_SPEED_EHS         0x02    /* Enable High-Speed mode */
 130
 131 /*
 132  * Function Basic Registers (FBR)
 133  */
 134
 135 #define SDIO_FBR_BASE(f)        ((f) * 0x100) /* base of function f's FBRs */
 136
 137 #define SDIO_FBR_STD_IF         0x00
 138
 139 #define  SDIO_FBR_SUPPORTS_CSA  0x40    /* supports Code Storage Area */
 140 #define  SDIO_FBR_ENABLE_CSA    0x80    /* enable Code Storage Area */
 141
 142 #define SDIO_FBR_STD_IF_EXT     0x01
 143
 144 #define SDIO_FBR_POWER          0x02
 145
 146 #define  SDIO_FBR_POWER_SPS     0x01    /* Supports Power Selection */
 147 #define  SDIO_FBR_POWER_EPS     0x02    /* Enable (low) Power Selection */
 148
 149 #define SDIO_FBR_CIS            0x09    /* CIS pointer (3 bytes) */
 150
 151
 152 #define SDIO_FBR_CSA            0x0C    /* CSA pointer (3 bytes) */
 153
 154 #define SDIO_FBR_CSA_DATA       0x0F
 155
 156 #define SDIO_FBR_BLKSIZE        0x10    /* block size (2 bytes) */
 157
 158 #endif
 159