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/* $Id: setmode.c $ */
/** @file
* Linux Additions X11 graphics driver, mode setting
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
* This file is based on X11 VESA driver (hardly any traces left here):
*
* Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Conectiva Linux shall
* not be used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from
* Conectiva Linux.
*
* Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
* Michael Thayer <michael.thayer@oracle.com>
*/
#ifdef XORG_7X
/* We include <unistd.h> for Solaris below, and the ANSI C emulation layer
* interferes with that. */
# define _XF86_ANSIC_H
# define XF86_LIBC_H
# include <string.h>
#endif
#include "vboxvideo.h"
#include "xf86.h"
/* VGA hardware functions for setting and restoring text mode */
#include "vgaHW.h"
#ifdef RT_OS_SOLARIS
# include <sys/vuid_event.h>
# include <sys/msio.h>
# include <errno.h>
# include <fcntl.h>
# include <unistd.h>
#endif
/** Clear the virtual framebuffer in VRAM. Optionally also clear up to the
* size of a new framebuffer. Framebuffer sizes larger than available VRAM
* be treated as zero and passed over. */
void vbvxClearVRAM(ScrnInfoPtr pScrn, size_t cbOldSize, size_t cbNewSize)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
/* Assume 32BPP - this is just a sanity test. */
AssertMsg( cbOldSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL
&& cbNewSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL,
("cbOldSize=%llu cbNewSize=%llu, max=%u.\n", (unsigned long long)cbOldSize, (unsigned long long)cbNewSize,
VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL));
if (cbOldSize > (size_t)pVBox->cbFBMax)
cbOldSize = pVBox->cbFBMax;
if (cbNewSize > (size_t)pVBox->cbFBMax)
cbNewSize = pVBox->cbFBMax;
memset(pVBox->base, 0, max(cbOldSize, cbNewSize));
}
/** Set a graphics mode. Poke any required values into registers, do an HGSMI
* mode set and tell the host we support advanced graphics functions.
*/
void vbvxSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth, unsigned cHeight, int x, int y, Bool fEnabled,
Bool fConnected, struct vbvxFrameBuffer *pFrameBuffer)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
uint32_t offStart;
uint16_t fFlags;
int rc;
Bool fEnabledAndVisible = fEnabled && x + cWidth <= pFrameBuffer->cWidth && y + cHeight <= pFrameBuffer->cHeight;
/* Recent host code has a flag to blank the screen; older code needs BPP set to zero. */
uint32_t cBPP = fEnabledAndVisible || pVBox->fHostHasScreenBlankingFlag ? pFrameBuffer->cBPP : 0;
TRACE_LOG("cDisplay=%u, cWidth=%u, cHeight=%u, x=%d, y=%d, fEnabled=%d, fConnected=%d, pFrameBuffer: { x0=%d, y0=%d, cWidth=%u, cHeight=%u, cBPP=%u }\n",
cDisplay, cWidth, cHeight, x, y, fEnabled, fConnected, pFrameBuffer->x0, pFrameBuffer->y0, pFrameBuffer->cWidth,
pFrameBuffer->cHeight, pFrameBuffer->cBPP);
AssertMsg(cWidth != 0 && cHeight != 0, ("cWidth = 0 or cHeight = 0\n"));
offStart = (y * pFrameBuffer->cWidth + x) * pFrameBuffer->cBPP / 8;
if (cDisplay == 0 && fEnabled)
VBoxVideoSetModeRegisters(cWidth, cHeight, pFrameBuffer->cWidth, pFrameBuffer->cBPP, 0, x, y);
fFlags = VBVA_SCREEN_F_ACTIVE;
fFlags |= (fConnected ? 0 : VBVA_SCREEN_F_DISABLED);
fFlags |= (!fEnabledAndVisible && pVBox->fHostHasScreenBlankingFlag ? VBVA_SCREEN_F_BLANK : 0);
VBoxHGSMIProcessDisplayInfo(&pVBox->guestCtx, cDisplay, x - pFrameBuffer->x0, y - pFrameBuffer->y0, offStart,
pFrameBuffer->cWidth * pFrameBuffer->cBPP / 8, cWidth, cHeight, cBPP, fFlags);
rc = VBoxHGSMIUpdateInputMapping(&pVBox->guestCtx, 0 - pFrameBuffer->x0, 0 - pFrameBuffer->y0, pFrameBuffer->cWidth,
pFrameBuffer->cHeight);
if (RT_FAILURE(rc))
FatalError("Failed to update the input mapping.\n");
}
/** Tell the virtual mouse device about the new virtual desktop size. */
void vbvxSetSolarisMouseRange(int width, int height)
{
#ifdef RT_OS_SOLARIS
int rc;
int hMouse = open("/dev/mouse", O_RDWR);
if (hMouse >= 0)
{
do {
Ms_screen_resolution Res = { height, width };
rc = ioctl(hMouse, MSIOSRESOLUTION, &Res);
} while ((rc != 0) && (errno == EINTR));
close(hMouse);
}
#else
(void)width; (void)height;
#endif
}
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