| /* |
| * |
| * Copyright (c) 2009, Microsoft Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope 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 License along with |
| * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| * Place - Suite 330, Boston, MA 02111-1307 USA. |
| * |
| * Authors: |
| * Haiyang Zhang <haiyangz@microsoft.com> |
| * Hank Janssen <hjanssen@microsoft.com> |
| * |
| */ |
| |
| |
| #ifndef _OSD_H_ |
| #define _OSD_H_ |
| |
| |
| /* Defines */ |
| |
| |
| |
| #define ALIGN_UP(value, align) ( ((value) & (align-1))? ( ((value) + (align-1)) & ~(align-1) ): (value) ) |
| #define ALIGN_DOWN(value, align) ( (value) & ~(align-1) ) |
| #define NUM_PAGES_SPANNED(addr, len) ( (ALIGN_UP(addr+len, PAGE_SIZE) - ALIGN_DOWN(addr, PAGE_SIZE)) >> PAGE_SHIFT ) |
| |
| #define LOWORD(dw) ((unsigned short) (dw)) |
| #define HIWORD(dw) ((unsigned short) (((unsigned int) (dw) >> 16) & 0xFFFF)) |
| |
| typedef struct _DLIST_ENTRY { |
| struct _DLIST_ENTRY *Flink; |
| struct _DLIST_ENTRY *Blink; |
| } DLIST_ENTRY; |
| |
| |
| /* Other types */ |
| |
| /* typedef unsigned char GUID[16]; */ |
| |
| typedef void (*PFN_TIMER_CALLBACK)(void* context); |
| |
| |
| typedef struct { |
| unsigned char Data[16]; |
| } GUID; |
| |
| struct osd_waitevent { |
| int condition; |
| wait_queue_head_t event; |
| }; |
| |
| struct osd_timer { |
| struct timer_list timer; |
| PFN_TIMER_CALLBACK callback; |
| void* context; |
| }; |
| |
| |
| /* Osd routines */ |
| |
| extern void* VirtualAllocExec(unsigned int size); |
| |
| extern void* PageAlloc(unsigned int count); |
| extern void PageFree(void* page, unsigned int count); |
| |
| extern void* MemMapIO(unsigned long phys, unsigned long size); |
| extern void MemUnmapIO(void* virt); |
| |
| extern struct osd_timer *TimerCreate(PFN_TIMER_CALLBACK pfnTimerCB, void* context); |
| extern void TimerClose(struct osd_timer *t); |
| extern int TimerStop(struct osd_timer *t); |
| extern void TimerStart(struct osd_timer *t, u32 expirationInUs); |
| |
| extern struct osd_waitevent *WaitEventCreate(void); |
| extern void WaitEventSet(struct osd_waitevent *waitEvent); |
| extern int WaitEventWait(struct osd_waitevent *waitEvent); |
| |
| /* If >0, waitEvent got signaled. If ==0, timeout. If < 0, error */ |
| extern int WaitEventWaitEx(struct osd_waitevent *waitEvent, u32 TimeoutInMs); |
| |
| |
| #define GetVirtualAddress Physical2LogicalAddr |
| void* Physical2LogicalAddr(unsigned long PhysAddr); |
| |
| #define GetPhysicalAddress Logical2PhysicalAddr |
| unsigned long Logical2PhysicalAddr(void * LogicalAddr); |
| |
| unsigned long Virtual2Physical(void * VirtAddr); |
| |
| int osd_schedule_callback(struct workqueue_struct *wq, |
| void (*func)(void *), |
| void *data); |
| |
| #endif /* _OSD_H_ */ |