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/*
* Mach Operating System
* Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/* This goes away as soon as we move it in the Ux server */
#include <mach/std_types.h>
#include <scsi/compat_30.h>
#include <scsi/scsi.h>
#include <scsi/scsi_defs.h>
#include <scsi/rz.h>
#include <scsi/rz_labels.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#if (NSCSI > 0)
#define LABEL_DEBUG(x,y) if (label_flag&x) y
#include <i386at/disk.h>
#include <device/device_types.h>
#include <device/disk_status.h>
int scsi_abs_sec = -1;
int scsi_abs_count = -1;
scsi_rw_abs(dev, data, rw, sec, count)
dev_t dev;
{
io_req_t ior;
io_return_t error;
io_req_alloc(ior,0);
ior->io_next = 0;
ior->io_unit = dev & (~(MAXPARTITIONS-1)); /* sort of */
ior->io_unit |= PARTITION_ABSOLUTE;
ior->io_data = (io_buf_ptr_t)data;
ior->io_count = count;
ior->io_recnum = sec;
ior->io_error = 0;
if (rw == IO_READ)
ior->io_op = IO_READ;
else
ior->io_op = IO_WRITE;
scdisk_strategy(ior);
iowait(ior);
error = ior->io_error;
io_req_free(ior);
return(error);
}
io_return_t
scsi_i386_get_status(dev, tgt, flavor, status, status_count)
int dev;
target_info_t *tgt;
int flavor;
dev_status_t status;
unsigned int *status_count;
{
switch (flavor) {
case V_GETPARMS: {
struct disklabel *lp = &tgt->dev_info.disk.l;
struct disk_parms *dp = (struct disk_parms *)status;
extern struct disklabel default_label;
int part = rzpartition(dev);
if (*status_count < sizeof (struct disk_parms)/sizeof(int))
return (D_INVALID_OPERATION);
dp->dp_type = DPT_WINI;
dp->dp_secsiz = lp->d_secsize;
if (lp->d_nsectors == default_label.d_nsectors &&
lp->d_ntracks == default_label.d_ntracks &&
lp->d_ncylinders == default_label.d_ncylinders) {
/* I guess there is nothing there */
/* Well, then, Adaptec's like ... */
dp->dp_sectors = 32;
dp->dp_heads = 64;
dp->dp_cyls = lp->d_secperunit / 64 / 32 ;
} else {
dp->dp_sectors = lp->d_nsectors;
dp->dp_heads = lp->d_ntracks;
dp->dp_cyls = lp->d_ncylinders;
}
dp->dp_dossectors = 32;
dp->dp_dosheads = 64;
dp->dp_doscyls = lp->d_secperunit / 64 / 32;
dp->dp_ptag = 0;
dp->dp_pflag = 0;
/* !!! partition changes */
printf("USING PARTIOION TABLE\n");
dp->dp_pstartsec = lp->d_partitions[part].p_offset;
dp->dp_pnumsec = lp->d_partitions[part].p_size;
*status_count = sizeof(struct disk_parms)/sizeof(int);
break;
}
case V_RDABS:
if (*status_count < DEV_BSIZE/sizeof (int)) {
printf("RDABS bad size %x", *status_count);
return (D_INVALID_OPERATION);
}
if (scsi_rw_abs(dev, status, IO_READ, scsi_abs_sec, DEV_BSIZE) != D_SUCCESS)
return(D_INVALID_OPERATION);
*status_count = DEV_BSIZE/sizeof(int);
break;
case V_VERIFY: {
int count = scsi_abs_count * DEV_BSIZE;
int sec = scsi_abs_sec;
char *scsi_verify_buf;
#include "vm/vm_kern.h"
(void) kmem_alloc(kernel_map, &scsi_verify_buf, PAGE_SIZE);
*status = 0;
while (count > 0) {
int xcount = (count < PAGE_SIZE) ? count : PAGE_SIZE;
if (scsi_rw_abs(dev, scsi_verify_buf, IO_READ, sec, xcount) != D_SUCCESS) {
*status = BAD_BLK;
break;
} else {
count -= xcount;
sec += xcount / DEV_BSIZE;
}
}
(void) kmem_free(kernel_map, scsi_verify_buf, PAGE_SIZE);
*status_count = 1;
break;
}
default:
return(D_INVALID_OPERATION);
}
return D_SUCCESS;
}
io_return_t
scsi_i386_set_status(dev, tgt, flavor, status, status_count)
int dev;
target_info_t *tgt;
int flavor;
int *status;
unsigned int status_count;
{
io_req_t ior;
switch (flavor) {
case V_SETPARMS:
printf("scsdisk_set_status: invalid flavor V_SETPARMS\n");
return(D_INVALID_OPERATION);
break;
case V_REMOUNT:
tgt->flags &= ~TGT_ONLINE;
break;
case V_ABS:
scsi_abs_sec = status[0];
if (status_count == 2)
scsi_abs_count = status[1];
break;
case V_WRABS:
if (status_count < DEV_BSIZE/sizeof (int)) {
printf("RDABS bad size %x", status_count);
return (D_INVALID_OPERATION);
}
if (scsi_rw_abs(dev, status, IO_WRITE, scsi_abs_sec, DEV_BSIZE) != D_SUCCESS)
return(D_INVALID_OPERATION);
break;
default:
return(D_INVALID_OPERATION);
}
return D_SUCCESS;
}
#endif /* NSCSI > 0 */
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