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