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/* $OpenBSD: dev_hppa.h,v 1.2 1998/09/29 07:30:59 mickey Exp $ */
#define MINIOSIZ 64 /* minimum buffer size for IODC call */
#define MAXIOSIZ (64 * 1024) /* maximum buffer size for IODC call */
#define IONBPG (2 * 1024) /* page alignment for I/O buffers */
#define IOPGSHIFT 11 /* LOG2(IONBPG) */
#define IOPGOFSET (IONBPG-1) /* byte offset into I/O buffer */
#define BTIOSIZ (8 * 1024) /* size of boot device I/O buffer */
struct disklabel;
struct hppa_dev {
dev_t bootdev;
struct pz_device *pz_dev; /* device descriptor */
daddr_t last_blk; /* byte offset for last read blk */
size_t last_read; /* amount read last time */
char buf[BTIOSIZ+MINIOSIZ]; /* will be used for unaligned io */
struct disklabel *label;
};
#ifdef PDCDEBUG
#define DEVPATH_PRINT(dp) \
printf("%x, %d.%d.%d.%d.%d.%d, 0x%x, %x.%x.%x.%x.%x.%x\n", \
(dp)->dp_flags, (dp)->dp_bc[0], (dp)->dp_bc[1], (dp)->dp_bc[2], \
(dp)->dp_bc[3], (dp)->dp_bc[4], (dp)->dp_bc[5], (dp)->dp_mod, \
(dp)->dp_layers[0], (dp)->dp_layers[1], (dp)->dp_layers[2], \
(dp)->dp_layers[3], (dp)->dp_layers[4], (dp)->dp_layers[5]);
#define PZDEV_PRINT(dp) \
printf("devpath={%x, %d.%d.%d.%d.%d.%d, 0x%x, %x.%x.%x.%x.%x.%x}," \
"\n\thpa=%p, spa=%p, io=%p, class=%u\n", \
(dp)->pz_flags, (dp)->pz_bc[0], (dp)->pz_bc[1], (dp)->pz_bc[2], \
(dp)->pz_bc[3], (dp)->pz_bc[4], (dp)->pz_bc[5], (dp)->pz_mod, \
(dp)->pz_layers[0], (dp)->pz_layers[1], (dp)->pz_layers[2], \
(dp)->pz_layers[3], (dp)->pz_layers[4], (dp)->pz_layers[5], \
(dp)->pz_hpa, (dp)->pz_spa, (dp)->pz_iodc_io, (dp)->pz_class);
#endif
extern pdcio_t pdc;
extern int pdcbuf[]; /* PDC returns, pdc.c */
extern struct pz_device ctdev; /* cartridge tape (boot) device path */
int iodc_rw __P((char *, u_int, u_int, int func, struct pz_device *));
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