sd.h
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- /*
- * sd.h Copyright (C) 1992 Drew Eckhardt
- * SCSI disk driver header file by
- * Drew Eckhardt
- *
- * <drew@colorado.edu>
- *
- * Modified by Eric Youngdale eric@andante.org to
- * add scatter-gather, multiple outstanding request, and other
- * enhancements.
- */
- #ifndef _SD_H
- #define _SD_H
- /*
- $Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/sd.h,v 1.1 1992/07/24 06:27:38 root Exp root $
- */
- #ifndef _SCSI_H
- #include "scsi.h"
- #endif
- #ifndef _GENDISK_H
- #include <linux/genhd.h>
- #endif
- extern struct hd_struct *sd;
- typedef struct scsi_disk {
- unsigned capacity; /* size in blocks */
- Scsi_Device *device;
- unsigned char ready; /* flag ready for FLOPTICAL */
- unsigned char write_prot; /* flag write_protect for rmvable dev */
- unsigned char sector_bit_size; /* sector_size = 2 to the bit size power */
- unsigned char sector_bit_shift; /* power of 2 sectors per FS block */
- unsigned has_part_table:1; /* has partition table */
- } Scsi_Disk;
- extern int revalidate_scsidisk(kdev_t dev, int maxusage);
- /*
- * Used by pmac to find the device associated with a target.
- */
- extern kdev_t sd_find_target(void *host, int tgt);
- #define N_SD_MAJORS 8
- #define SD_MAJOR_MASK (N_SD_MAJORS - 1)
- #define SD_PARTITION(i) (((MAJOR(i) & SD_MAJOR_MASK) << 8) | (MINOR(i) & 255))
- #endif
- /*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 4
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -4
- * c-argdecl-indent: 4
- * c-label-offset: -4
- * c-continued-statement-offset: 4
- * c-continued-brace-offset: 0
- * indent-tabs-mode: nil
- * tab-width: 8
- * End:
- */