static pointer
mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
{
pointer base;
int fd;
#if defined(SVR4)
fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
if (fd < 0)
{
FatalError("xf86MapVidMem: failed to open %s (%s)\n",
DEV_MEM, strerror(errno));
}
base = mmap((caddr_t)0, Size,
(flags & VIDMEM_READONLY) ?
PROT_READ : (PROT_READ | PROT_WRITE),
MAP_SHARED, fd, (off_t)Base);
close(fd);
if (base == MAP_FAILED)
{
FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n",
"xf86MapVidMem", Size, Base, strerror(errno));
}
#else /* SVR4 */
#ifdef HAS_SVR3_MMAPDRV
xf86MsgVerb(X_INFO, MMAP_DEBUG, "# xf86MapVidMem: MMAP 2.2.2 called\n");
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION));
if (ioctl(mmapFd, GETVERSION) == -1)
{
xf86LinearVidMem();
}
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION));
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"xf86MapVidMem: Screen: %d\n", ScreenNum);
mmapStat(Base,Size);
/* To force the MMAP driver to provide the address */
base = (pointer)0;
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"xf86MapVidMem: [s=%x,a=%x]\n", Size, Base);
MapDSC.vaddr = (char *)base;
MapDSC.physaddr = (char *)Base;
MapDSC.length = Size;
MapDSC.ioflg = 1;
if(mmapFd >= 0)
{
if((base = (pointer)ioctl(mmapFd, MAP, &MapDSC)) == (pointer)-1)
{
FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n",
"xf86MapVidMem", Size, Base, strerror(errno));
/* NOTREACHED */
}
/* Next time we want the same address! */
MapDSC.vaddr = (char *)base;
}
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"MapDSC.vaddr : 0x%x\n", MapDSC.vaddr);
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"MapDSC.physaddr: 0x%x\n", MapDSC.physaddr);
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"MapDSC.length : %d\n", MapDSC.length);
mmapStat(Base,Size);
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"xf86MapVidMem: [s=%x,a=%x,b=%x]\n", Size, Base, base);
xf86MsgVerb(X_INFO, MMAP_DEBUG,
"xf86MapVidMem: SUCCEED Mapping FrameBuffer \n");
#endif /* HAS_SVR3_MMAPDRV */
#endif /* SVR4 */
return base;
}
_X_EXPORT pointer
xf86MapVidMem(int ScreenNum, int Flags, unsigned long Base, unsigned long Size)
{
pointer base;
int fd;
char vtname[20];
/*
* Solaris 2.1 x86 SVR4 (10/27/93)
* The server must treat the virtual terminal device file as the
* standard SVR4 /dev/pmem.
*
* Using the /dev/vtXX device as /dev/pmem only works for the
* A0000-FFFFF region - If we wish you mmap the linear aperture
* it requires a device driver.
*
* So what we'll do is use /dev/vtXX for the A0000-FFFFF stuff, and
* try to use the /dev/fbs/aperture or /dev/xsvc driver if the server
* tries to mmap anything > FFFFF. Its very very unlikely that the
* server will try to mmap anything below FFFFF that can't be handled
* by /dev/vtXX.
*
* DWH - 2/23/94
* DWH - 1/31/99 (Gee has it really been 5 years?)
*
* Solaris 2.8 7/26/99
* Use /dev/xsvc for everything
*
* DWH - 7/26/99 - Solaris8/dev/xsvc changes
*
* TSI - 2001.09 - SPARC changes
*/
#if defined(i386) && !defined(__SOL8__)
if(Base < 0xFFFFF)
sprintf(vtname, "/dev/vt%02d", xf86Info.vtno);
else
#endif
{
if (!xf86LinearVidMem())
FatalError("xf86MapVidMem: no aperture device\n");
strcpy(vtname, apertureDevName);
}
fd = open(vtname, (Flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
if (fd < 0)
FatalError("xf86MapVidMem: failed to open %s (%s)\n",
vtname, strerror(errno));
base = mmap(NULL, Size,
(Flags & VIDMEM_READONLY) ?
PROT_READ : (PROT_READ | PROT_WRITE),
MAP_SHARED, fd, (off_t)Base);
close(fd);
if (base == MAP_FAILED)
FatalError("xf86MapVidMem: mmap failure: %s\n",
strerror(errno));
return(base);
}
