swim_iop.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:7k
- /*
- * 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__ */