128 lines
2.5 KiB
C
128 lines
2.5 KiB
C
/*
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* Copyright 1999, Be Incorporated.
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* Copyright 2007, Haiku.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Be Incorporated
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* Eric Petit <eric.petit@lapsus.org>
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* Michael Pfeiffer <laplace@users.sourceforge.net>
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*/
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#ifndef DRIVERINTERFACE_H
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#define DRIVERINTERFACE_H
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#include <GraphicsDefs.h>
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#include <Accelerant.h>
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#include <Drivers.h>
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#include <PCI.h>
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#include <OS.h>
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#include "vm_device_version.h"
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#include "svga_reg.h"
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#define MAX_SAMPLE_DEVICE_NAME_LENGTH 32
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#define CURSOR_ID 1
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/*--------------------------------------------------------------------*/
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/* Benaphores */
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typedef struct {
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sem_id sem;
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int32 ben;
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} Benaphore;
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#define INIT_BEN(x) x.sem = create_sem(0, "VMware "#x); x.ben = 0;
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#define ACQUIRE_BEN(x) if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
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#define RELEASE_BEN(x) if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
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#define DELETE_BEN(x) delete_sem(x.sem);
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/*--------------------------------------------------------------------*/
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/* Utils */
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#define ROUND_TO_PAGE_SIZE(x) (((x)+(B_PAGE_SIZE)-1)&~((B_PAGE_SIZE)-1))
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static inline int
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BppForSpace(int space)
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{
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switch (space) {
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case B_RGB32:
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return 32;
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case B_RGB24:
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return 24;
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case B_RGB16:
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return 16;
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case B_RGB15:
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return 15;
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case B_CMAP8:
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return 8;
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}
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return 0;
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}
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/*--------------------------------------------------------------------*/
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/* Request codes for ioctl() */
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enum {
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VMWARE_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
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VMWARE_FIFO_START,
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VMWARE_FIFO_STOP,
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VMWARE_FIFO_SYNC,
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VMWARE_SET_MODE,
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VMWARE_SHOW_CURSOR,
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VMWARE_MOVE_CURSOR,
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VMWARE_GET_DEVICE_NAME,
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VMWARE_SET_PALETTE
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};
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/*--------------------------------------------------------------------*/
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/* Structure shared between the kernel driver and the accelerant */
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typedef struct {
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/* Device info and capabilities */
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uint16 vendorId;
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uint16 deviceId;
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uint8 revision;
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uint32 maxWidth;
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uint32 maxHeight;
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void *fbDma;
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uint32 fbSize;
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void *fifoDma;
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uint32 fifoSize;
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uint32 fifoMin;
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uint32 capabilities;
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uint32 fifoCapabilities;
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uint32 fifoFlags;
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/* For registers access */
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uint16 indexPort;
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uint16 valuePort;
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/* Mapped areas */
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area_id fbArea;
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void *fb;
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area_id fifoArea;
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void *fifo;
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/* This changes when we switch to another mode */
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uint32 fbOffset;
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uint32 bytesPerRow;
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/* Current display mode */
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display_mode dm;
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Benaphore engineLock;
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Benaphore fifoLock;
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uint32 fifoNext;
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/* Cursor state */
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bool cursorShow;
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uint16 cursorX;
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uint16 cursorY;
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} SharedInfo;
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#endif
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