include/asm-m68k/swim_iop.h

   1 /*
   2  * SWIM access through the IOP
   3  * Written by Joshua M. Thompson
   4  */
   5
   6 /* IOP number and channel number for the SWIM */
   7
   8 #define SWIM_IOP        IOP_NUM_ISM
   9 #define SWIM_CHAN       1
  10
  11 /* Command code: */
  12
  13 #define CMD_INIT                0x01    /* Initialize                  */
  14 #define CMD_SHUTDOWN            0x02    /* Shutdown                    */
  15 #define CMD_START_POLL          0x03    /* Start insert/eject polling  */
  16 #define CMD_STOP_POLL           0x04    /* Stop insert/eject polling   */
  17 #define CMD_SETHFSTAG           0x05    /* Set HFS tag buffer address  */
  18 #define CMD_STATUS              0x06    /* Status                      */
  19 #define CMD_EJECT               0x07    /* Eject                       */
  20 #define CMD_FORMAT              0x08    /* Format                      */
  21 #define CMD_FORMAT_VERIFY       0x09    /* Format and Verify           */
  22 #define CMD_WRITE               0x0A    /* Write                       */
  23 #define CMD_READ                0x0B    /* Read                        */
  24 #define CMD_READ_VERIFY         0x0C    /* Read and Verify             */
  25 #define CMD_CACHE_CTRL          0x0D    /* Cache control               */
  26 #define CMD_TAGBUFF_CTRL        0x0E    /* Tag buffer control          */
  27 #define CMD_GET_ICON            0x0F    /* Get Icon                    */
  28
  29 /* Drive types: */
  30
  31 /* note: apple sez DRV_FDHD is 4, but I get back a type */
  32 /*       of 5 when I do a drive status check on my FDHD */
  33
  34 #define DRV_NONE        0       /* No drive             */
  35 #define DRV_UNKNOWN     1       /* Unspecified drive    */
  36 #define DRV_400K        2       /* 400K                 */
  37 #define DRV_800K        3       /* 400K/800K            */
  38 #define DRV_FDHD        5       /* 400K/800K/720K/1440K */
  39 #define DRV_HD20        7       /* Apple HD20           */
  40
  41 /* Format types: */
  42
  43 #define FMT_HD20        0x0001  /*  Apple HD20 */
  44 #define FMT_400K        0x0002  /*  400K (GCR) */
  45 #define FMT_800K        0x0004  /*  800K (GCR) */
  46 #define FMT_720K        0x0008  /*  720K (MFM) */
  47 #define FMT_1440K       0x0010  /* 1.44M (MFM) */
  48
  49 #define FMD_KIND_400K   1
  50 #define FMD_KIND_800K   2
  51 #define FMD_KIND_720K   3
  52 #define FMD_KIND_1440K  1
  53
  54 /* Icon Flags: */
  55
  56 #define ICON_MEDIA      0x01    /* Have IOP supply media icon */
  57 #define ICON_DRIVE      0x01    /* Have IOP supply drive icon */
  58
  59 /* Error codes: */
  60
  61 #define gcrOnMFMErr     -400    /* GCR (400/800K) on HD media */
  62 #define verErr          -84     /* verify failed */
  63 #define fmt2Err         -83     /* can't get enough sync during format */
  64 #define fmt1Err         -82     /* can't find sector 0 after track format */
  65 #define sectNFErr       -81     /* can't find sector */
  66 #define seekErr         -80     /* drive error during seek */
  67 #define spdAdjErr       -79     /* can't set drive speed */
  68 #define twoSideErr      -78     /* drive is single-sided */
  69 #define initIWMErr      -77     /* error during initialization */
  70 #define tk0badErr       -76     /* track zero is bad */
  71 #define cantStepErr     -75     /* drive error during step */
  72 #define wrUnderrun      -74     /* write underrun occurred */
  73 #define badDBtSlp       -73     /* bad data bitslip marks */
  74 #define badDCksum       -72     /* bad data checksum */
  75 #define noDtaMkErr      -71     /* can't find data mark */
  76 #define badBtSlpErr     -70     /* bad address bitslip marks */
  77 #define badCksmErr      -69     /* bad address-mark checksum */
  78 #define dataVerErr      -68     /* read-verify failed */
  79 #define noAdrMkErr      -67     /* can't find an address mark */
  80 #define noNybErr        -66     /* no nybbles? disk is probably degaussed */
  81 #define offLinErr       -65     /* no disk in drive */
  82 #define noDriveErr      -64     /* drive isn't connected */
  83 #define nsDrvErr        -56     /* no such drive */
  84 #define paramErr        -50     /* bad positioning information */
  85 #define wPrErr          -44     /* write protected */
  86 #define openErr         -23     /* already initialized */
  87
  88 #ifndef __ASSEMBLY__
  89
  90 struct swim_drvstatus {
  91         __u16   curr_track;     /* Current track number                   */
  92         __u8    write_prot;     /* 0x80 if disk is write protected        */
  93         __u8    disk_in_drive;  /* 0x01 or 0x02 if a disk is in the drive */
  94         __u8    installed;      /* 0x01 if drive installed, 0xFF if not   */
  95         __u8    num_sides;      /* 0x80 if two-sided format supported     */
  96         __u8    two_sided;      /* 0xff if two-sided format diskette      */
  97         __u8    new_interface;  /* 0x00 if old 400K drive, 0xFF if newer  */
  98         __u16   errors;         /* Disk error count                       */
  99         struct {                /* 32 bits */
 100                 __u16   reserved;
 101                 __u16   :4;
 102                 __u16   external:1;     /* Drive is external        */
 103                 __u16   scsi:1;         /* Drive is a SCSI drive    */
 104                 __u16   fixed:1;        /* Drive has fixed media    */
 105                 __u16   secondary:1;    /* Drive is secondary drive */
 106                 __u8    type;           /* Drive type               */
 107         } info;
 108         __u8    mfm_drive;      /* 0xFF if this is an FDHD drive    */
 109         __u8    mfm_disk;       /* 0xFF if 720K/1440K (MFM) disk    */
 110         __u8    mfm_format;     /* 0x00 if 720K, 0xFF if 1440K      */
 111         __u8    ctlr_type;      /* 0x00 if IWM, 0xFF if SWIM        */
 112         __u16   curr_format;    /* Current format type              */
 113         __u16   allowed_fmt;    /* Allowed format types             */
 114         __u32   num_blocks;     /* Number of blocks on disk         */
 115         __u8    icon_flags;     /* Icon flags                       */
 116         __u8    unusued;
 117 };
 118
 119 /* Commands issued from the host to the IOP: */
 120
 121 struct swimcmd_init {
 122         __u8    code;           /* CMD_INIT */
 123         __u8    unusued;
 124         __u16   error;
 125         __u8    drives[28];     /* drive type list */
 126 };
 127
 128 struct swimcmd_startpoll {
 129         __u8    code;           /* CMD_START_POLL */
 130         __u8    unusued;
 131         __u16   error;
 132 };
 133
 134 struct swimcmd_sethfstag {
 135         __u8    code;           /* CMD_SETHFSTAG */
 136         __u8    unusued;
 137         __u16   error;
 138         caddr_t tagbuf;         /* HFS tag buffer address */
 139 };
 140
 141 struct swimcmd_status {
 142         __u8    code;           /* CMD_STATUS */
 143         __u8    drive_num;
 144         __u16   error;
 145         struct swim_drvstatus status;
 146 };
 147
 148 struct swimcmd_eject {
 149         __u8    code;           /* CMD_EJECT */
 150         __u8    drive_num;
 151         __u16   error;
 152         struct swim_drvstatus status;
 153 };
 154
 155 struct swimcmd_format {
 156         __u8    code;           /* CMD_FORMAT */
 157         __u8    drive_num;
 158         __u16   error;
 159         union {
 160                 struct {
 161                         __u16 fmt;         /* format kind                  */
 162                         __u8  hdrbyte;     /* fmt byte for hdr (0=default) */
 163                         __u8  interleave;  /* interleave (0 = default)     */
 164                         caddr_t databuf;   /* sector data buff (0=default  */
 165                         caddr_t tagbuf;    /* tag data buffer (0=default)  */
 166                 } f;
 167                 struct swim_drvstatus status;
 168         } p;
 169 };
 170
 171 struct swimcmd_fmtverify {
 172         __u8    code;           /* CMD_FORMAT_VERIFY */
 173         __u8    drive_num;
 174         __u16   error;
 175 };
 176
 177 struct swimcmd_rw {
 178         __u8    code;           /* CMD_READ, CMD_WRITE or CMD_READ_VERIFY */
 179         __u8    drive_num;
 180         __u16   error;
 181         caddr_t buffer;         /* R/W buffer address */
 182         __u32   first_block;    /* Starting block     */
 183         __u32   num_blocks;     /* Number of blocks   */
 184         __u8    tag[12];        /* tag data           */
 185 };
 186
 187 struct swimcmd_cachectl {
 188         __u8    code;           /* CMD_CACHE_CTRL */
 189         __u8    unused;
 190         __u16   error;
 191         __u8    enable;         /* Nonzero to enable cache                */
 192         __u8    install;        /* +1 = install, -1 = remove, 0 = neither */
 193 };
 194
 195 struct swimcmd_tagbufctl {
 196         __u8    code;           /* CMD_TAGBUFF_CTRL */
 197         __u8    unused;
 198         __u16   error;
 199         caddr_t buf;            /* buffer address or 0 to disable */
 200 };
 201
 202 struct swimcmd_geticon {
 203         __u8    code;           /* CMD_GET_ICON */
 204         __u8    drive_num;
 205         __u16   error;
 206         caddr_t buffer;         /* Nuffer address */
 207         __u16   kind;           /* 0 = media icon, 1 = drive icon */
 208         __u16   unused;
 209         __u16   max_bytes;      /* maximum  byte count */
 210 };
 211
 212 /* Messages from the SWIM IOP to the host CPU: */
 213
 214 struct swimmsg_status {
 215         __u8    code;           /* 1 = insert, 2 = eject, 3 = status changed */
 216         __u8    drive_num;
 217         __u16   error;
 218         struct swim_drvstatus status;
 219 };
 220
 221 #endif /* __ASSEMBLY__ */