patch-2.4.21 linux-2.4.21/include/linux/blkcdb.h

• Lines: 102
• Date: 2003-06-13 07:51:38.000000000 -0700
• Orig file: linux-2.4.20/include/linux/blkcdb.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/include/linux/blkcdb.h linux-2.4.21/include/linux/blkcdb.h
@@ -0,0 +1,101 @@
+/*
+ * 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 */
+