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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 */