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4983b39a06
This moves osd.h out of the include/ subdirectory. No code changes are made here. Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
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*
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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*
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*/
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#ifndef _OSD_H_
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#define _OSD_H_
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/* Defines */
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#define ALIGN_UP(value, align) ( ((value) & (align-1))? ( ((value) + (align-1)) & ~(align-1) ): (value) )
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#define ALIGN_DOWN(value, align) ( (value) & ~(align-1) )
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#define NUM_PAGES_SPANNED(addr, len) ( (ALIGN_UP(addr+len, PAGE_SIZE) - ALIGN_DOWN(addr, PAGE_SIZE)) >> PAGE_SHIFT )
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#define LOWORD(dw) ((unsigned short) (dw))
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#define HIWORD(dw) ((unsigned short) (((unsigned int) (dw) >> 16) & 0xFFFF))
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typedef struct _DLIST_ENTRY {
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struct _DLIST_ENTRY *Flink;
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struct _DLIST_ENTRY *Blink;
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} DLIST_ENTRY;
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/* Other types */
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/* typedef unsigned char GUID[16]; */
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typedef struct {
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unsigned char Data[16];
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} GUID;
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struct osd_waitevent {
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int condition;
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wait_queue_head_t event;
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};
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/* Osd routines */
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extern void *osd_VirtualAllocExec(unsigned int size);
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extern void *osd_PageAlloc(unsigned int count);
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extern void osd_PageFree(void* page, unsigned int count);
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extern struct osd_waitevent *osd_WaitEventCreate(void);
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extern void osd_WaitEventSet(struct osd_waitevent *waitEvent);
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extern int osd_WaitEventWait(struct osd_waitevent *waitEvent);
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/* If >0, waitEvent got signaled. If ==0, timeout. If < 0, error */
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extern int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent, u32 TimeoutInMs);
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int osd_schedule_callback(struct workqueue_struct *wq,
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void (*func)(void *),
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void *data);
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#endif /* _OSD_H_ */
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