ide.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:2k
- /*
- * linux/include/asm-arm/ide.h
- *
- * Copyright (C) 1994-1996 Linus Torvalds & authors
- */
- /*
- * This file contains the i386 architecture specific IDE code.
- */
- #ifndef __ASMARM_IDE_H
- #define __ASMARM_IDE_H
- #ifdef __KERNEL__
- #ifndef MAX_HWIFS
- #define MAX_HWIFS 4
- #endif
- #define ide__sti() __sti()
- #include <asm/arch/ide.h>
- typedef union {
- unsigned all : 8; /* all of the bits together */
- struct {
- unsigned head : 4; /* always zeros here */
- unsigned unit : 1; /* drive select number, 0 or 1 */
- unsigned bit5 : 1; /* always 1 */
- unsigned lba : 1; /* using LBA instead of CHS */
- unsigned bit7 : 1; /* always 1 */
- } b;
- } select_t;
- typedef union {
- unsigned all : 8; /* all of the bits together */
- struct {
- unsigned bit0 : 1;
- unsigned nIEN : 1; /* device INTRQ to host */
- unsigned SRST : 1; /* host soft reset bit */
- unsigned bit3 : 1; /* ATA-2 thingy */
- unsigned reserved456 : 3;
- unsigned HOB : 1; /* 48-bit address ordering */
- } b;
- } control_t;
- #define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id))
- #define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id))
- #define ide_check_region(from,extent) check_region((from), (extent))
- #define ide_request_region(from,extent,name) request_region((from), (extent), (name))
- #define ide_release_region(from,extent) release_region((from), (extent))
- /*
- * The following are not needed for the non-m68k ports
- */
- #define ide_ack_intr(hwif) (1)
- #define ide_fix_driveid(id) do {} while (0)
- #define ide_release_lock(lock) do {} while (0)
- #define ide_get_lock(lock, hdlr, data) do {} while (0)
- /*
- * We always use the new IDE port registering,
- * so these are fixed here.
- */
- #define ide_default_io_base(i) ((ide_ioreg_t)0)
- #define ide_default_irq(b) (0)
- #endif /* __KERNEL__ */
- #endif /* __ASMARM_IDE_H */