drivers/mmc/host/wbsd.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  linux/drivers/mmc/host/wbsd.h - Winbond W83L51xD SD/MMC driver
   4  *
   5  *  Copyright (C) 2004-2007 Pierre Ossman, All Rights Reserved.
   6  */
   7
   8 #define LOCK_CODE               0xAA
   9
  10 #define WBSD_CONF_SWRST         0x02
  11 #define WBSD_CONF_DEVICE        0x07
  12 #define WBSD_CONF_ID_HI         0x20
  13 #define WBSD_CONF_ID_LO         0x21
  14 #define WBSD_CONF_POWER         0x22
  15 #define WBSD_CONF_PME           0x23
  16 #define WBSD_CONF_PMES          0x24
  17
  18 #define WBSD_CONF_ENABLE        0x30
  19 #define WBSD_CONF_PORT_HI       0x60
  20 #define WBSD_CONF_PORT_LO       0x61
  21 #define WBSD_CONF_IRQ           0x70
  22 #define WBSD_CONF_DRQ           0x74
  23
  24 #define WBSD_CONF_PINS          0xF0
  25
  26 #define DEVICE_SD               0x03
  27
  28 #define WBSD_PINS_DAT3_HI       0x20
  29 #define WBSD_PINS_DAT3_OUT      0x10
  30 #define WBSD_PINS_GP11_HI       0x04
  31 #define WBSD_PINS_DETECT_GP11   0x02
  32 #define WBSD_PINS_DETECT_DAT3   0x01
  33
  34 #define WBSD_CMDR               0x00
  35 #define WBSD_DFR                0x01
  36 #define WBSD_EIR                0x02
  37 #define WBSD_ISR                0x03
  38 #define WBSD_FSR                0x04
  39 #define WBSD_IDXR               0x05
  40 #define WBSD_DATAR              0x06
  41 #define WBSD_CSR                0x07
  42
  43 #define WBSD_EINT_CARD          0x40
  44 #define WBSD_EINT_FIFO_THRE     0x20
  45 #define WBSD_EINT_CRC           0x10
  46 #define WBSD_EINT_TIMEOUT       0x08
  47 #define WBSD_EINT_PROGEND       0x04
  48 #define WBSD_EINT_BUSYEND       0x02
  49 #define WBSD_EINT_TC            0x01
  50
  51 #define WBSD_INT_PENDING        0x80
  52 #define WBSD_INT_CARD           0x40
  53 #define WBSD_INT_FIFO_THRE      0x20
  54 #define WBSD_INT_CRC            0x10
  55 #define WBSD_INT_TIMEOUT        0x08
  56 #define WBSD_INT_PROGEND        0x04
  57 #define WBSD_INT_BUSYEND        0x02
  58 #define WBSD_INT_TC             0x01
  59
  60 #define WBSD_FIFO_EMPTY         0x80
  61 #define WBSD_FIFO_FULL          0x40
  62 #define WBSD_FIFO_EMTHRE        0x20
  63 #define WBSD_FIFO_FUTHRE        0x10
  64 #define WBSD_FIFO_SZMASK        0x0F
  65
  66 #define WBSD_MSLED              0x20
  67 #define WBSD_POWER_N            0x10
  68 #define WBSD_WRPT               0x04
  69 #define WBSD_CARDPRESENT        0x01
  70
  71 #define WBSD_IDX_CLK            0x01
  72 #define WBSD_IDX_PBSMSB         0x02
  73 #define WBSD_IDX_TAAC           0x03
  74 #define WBSD_IDX_NSAC           0x04
  75 #define WBSD_IDX_PBSLSB         0x05
  76 #define WBSD_IDX_SETUP          0x06
  77 #define WBSD_IDX_DMA            0x07
  78 #define WBSD_IDX_FIFOEN         0x08
  79 #define WBSD_IDX_STATUS         0x10
  80 #define WBSD_IDX_RSPLEN         0x1E
  81 #define WBSD_IDX_RESP0          0x1F
  82 #define WBSD_IDX_RESP1          0x20
  83 #define WBSD_IDX_RESP2          0x21
  84 #define WBSD_IDX_RESP3          0x22
  85 #define WBSD_IDX_RESP4          0x23
  86 #define WBSD_IDX_RESP5          0x24
  87 #define WBSD_IDX_RESP6          0x25
  88 #define WBSD_IDX_RESP7          0x26
  89 #define WBSD_IDX_RESP8          0x27
  90 #define WBSD_IDX_RESP9          0x28
  91 #define WBSD_IDX_RESP10         0x29
  92 #define WBSD_IDX_RESP11         0x2A
  93 #define WBSD_IDX_RESP12         0x2B
  94 #define WBSD_IDX_RESP13         0x2C
  95 #define WBSD_IDX_RESP14         0x2D
  96 #define WBSD_IDX_RESP15         0x2E
  97 #define WBSD_IDX_RESP16         0x2F
  98 #define WBSD_IDX_CRCSTATUS      0x30
  99 #define WBSD_IDX_ISR            0x3F
 100
 101 #define WBSD_CLK_375K           0x00
 102 #define WBSD_CLK_12M            0x01
 103 #define WBSD_CLK_16M            0x02
 104 #define WBSD_CLK_24M            0x03
 105
 106 #define WBSD_DATA_WIDTH         0x01
 107
 108 #define WBSD_DAT3_H             0x08
 109 #define WBSD_FIFO_RESET         0x04
 110 #define WBSD_SOFT_RESET         0x02
 111 #define WBSD_INC_INDEX          0x01
 112
 113 #define WBSD_DMA_SINGLE         0x02
 114 #define WBSD_DMA_ENABLE         0x01
 115
 116 #define WBSD_FIFOEN_EMPTY       0x20
 117 #define WBSD_FIFOEN_FULL        0x10
 118 #define WBSD_FIFO_THREMASK      0x0F
 119
 120 #define WBSD_BLOCK_READ         0x80
 121 #define WBSD_BLOCK_WRITE        0x40
 122 #define WBSD_BUSY               0x20
 123 #define WBSD_CARDTRAFFIC        0x04
 124 #define WBSD_SENDCMD            0x02
 125 #define WBSD_RECVRES            0x01
 126
 127 #define WBSD_RSP_SHORT          0x00
 128 #define WBSD_RSP_LONG           0x01
 129
 130 #define WBSD_CRC_MASK           0x1F
 131 #define WBSD_CRC_OK             0x05 /* S010E (00101) */
 132 #define WBSD_CRC_FAIL           0x0B /* S101E (01011) */
 133
 134 #define WBSD_DMA_SIZE           65536
 135
 136 struct wbsd_host
 137 {
 138         struct mmc_host*        mmc;            /* MMC structure */
 139
 140         spinlock_t              lock;           /* Mutex */
 141
 142         int                     flags;          /* Driver states */
 143
 144 #define WBSD_FCARD_PRESENT      (1<<0)          /* Card is present */
 145 #define WBSD_FIGNORE_DETECT     (1<<1)          /* Ignore card detection */
 146
 147         struct mmc_request*     mrq;            /* Current request */
 148
 149         u8                      isr;            /* Accumulated ISR */
 150
 151         struct scatterlist*     cur_sg;         /* Current SG entry */
 152         unsigned int            num_sg;         /* Number of entries left */
 153
 154         unsigned int            offset;         /* Offset into current entry */
 155         unsigned int            remain;         /* Data left in curren entry */
 156
 157         char*                   dma_buffer;     /* ISA DMA buffer */
 158         dma_addr_t              dma_addr;       /* Physical address for same */
 159
 160         int                     firsterr;       /* See fifo functions */
 161
 162         u8                      clk;            /* Current clock speed */
 163         unsigned char           bus_width;      /* Current bus width */
 164
 165         int                     config;         /* Config port */
 166         u8                      unlock_code;    /* Code to unlock config */
 167
 168         int                     chip_id;        /* ID of controller */
 169
 170         int                     base;           /* I/O port base */
 171         int                     irq;            /* Interrupt */
 172         int                     dma;            /* DMA channel */
 173
 174         struct tasklet_struct   card_tasklet;   /* Tasklet structures */
 175         struct tasklet_struct   fifo_tasklet;
 176         struct tasklet_struct   crc_tasklet;
 177         struct tasklet_struct   timeout_tasklet;
 178         struct tasklet_struct   finish_tasklet;
 179
 180         struct timer_list       ignore_timer;   /* Ignore detection timer */
 181 };