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/*
* 2.5 Command Descriptor Block (CDB) Block Pre-Handler.
*
* Copyright (C) 2001 Andre Hedrick <andre@linux-ide.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public Licens
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-
*/
#ifndef _LINUX_BLKCDB_H
#define _LINUX_BLKCDB_H
typedef struct cdb_list {
#if 0
unsigned char cdb_0;
unsigned char cdb_1;
unsigned char cdb_2;
unsigned char cdb_3;
unsigned char cdb_4;
unsigned char cdb_5;
unsigned char cdb_6;
unsigned char cdb_7;
unsigned char cdb_8;
unsigned char cdb_9;
unsigned char cdb_10;
unsigned char cdb_11;
unsigned char cdb_12;
unsigned char cdb_13;
unsigned char cdb_14;
unsigned char cdb_15;
#else
unsigned char cdb_regs[16];
#endif
} cdb_list_t;
#if 0
typedef cdb_list_t * (queue_proc) (kdev_t dev);
request_queue_t *ide_get_queue (kdev_t dev)
{
ide_hwif_t *hwif = (ide_hwif_t *)blk_dev[MAJOR(dev)].data;
return &hwif->drives[DEVICE_NR(dev) & 1].queue;
}
static request_queue_t *sd_find_queue(kdev_t dev)
{
Scsi_Disk *dpnt;
int target;
target = DEVICE_NR(dev);
dpnt = &rscsi_disks[target];
if (!dpnt)
return NULL; /* No such device */
return &dpnt->device->request_queue;
}
prebuilder: NULL,
block_device_operations
struct block_device {
void do_ide_request(request_queue_t *q)
ide_do_request
typedef cdb_list_t (request_cdb_proc) (request_queue_t *q);
typedef cdb_list_t (request_cdb_proc) (request_queue_t *q);
typedef void (request_fn_proc) (request_queue_t *q);
srb
switch (SCpnt->request.cmd)
SCpnt->cmnd[0] = WRITE_6/READ_6;
SCpnt->cmnd[1] = (SCpnt->device->scsi_level <= SCSI_2) ?
((SCpnt->lun << 5) & 0xe0) : 0;
SCpnt->cmnd[2] = (unsigned char) (block >> 24) & 0xff;
SCpnt->cmnd[3] = (unsigned char) (block >> 16) & 0xff;
SCpnt->cmnd[4] = (unsigned char) (block >> 8) & 0xff;
SCpnt->cmnd[5] = (unsigned char) block & 0xff;
SCpnt->cmnd[6] = 0;
SCpnt->cmnd[7] = (unsigned char) (this_count >> 8) & 0xff;
SCpnt->cmnd[8] = (unsigned char) this_count & 0xff;
SCpnt->cmnd[9] = 0;
#endif
#endif /* _LINUX_BLKCDB_H */
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