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Diffstat (limited to 'include/asm-m68k/swim_iop.h')
| -rw-r--r-- | include/asm-m68k/swim_iop.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/include/asm-m68k/swim_iop.h b/include/asm-m68k/swim_iop.h new file mode 100644 index 00000000000..f29b67876b0 --- /dev/null +++ b/include/asm-m68k/swim_iop.h @@ -0,0 +1,221 @@ +/* + * 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 /* can't 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__ */ |