diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/sco/sco_video.c')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/sco/sco_video.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/xorg-server/hw/xfree86/os-support/sco/sco_video.c b/xorg-server/hw/xfree86/os-support/sco/sco_video.c deleted file mode 100644 index f63b71df8..000000000 --- a/xorg-server/hw/xfree86/os-support/sco/sco_video.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * Copyright 2001 by J. Kean Johnston <jkj@sco.com> - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name J. Kean Johnston not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. J. Kean Johnston makes no - * representations about the suitability of this software for any purpose. - * It is provided "as is" without express or implied warranty. - * - * J. KEAN JOHNSTON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL J. KEAN JOHNSTON BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF - * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR - * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -/* Re-written May 2001 to represent the current state of reality */ - -/* - * This file contains the completely re-written SCO OpenServer video - * routines for XFree86 4.x. Much of this is based on the SCO X server - * code (which is an X11R5 server) and will probably only work on - * OpenServer versions 5.0.5, 5.0.6 and later. Please send me (jkj@sco.com) - * email if you have any questions. - * - * Ideally, you should use OSR5.0.6A or later, with the updated console - * driver for 5.0.6A (its the default driver in 5.0.7 and later). - * However, if you are running on an older system, this code will detect - * that and adjust accordingly. - */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <X11/X.h> -#include "input.h" -#include "scrnintstr.h" - -#define _NEED_SYSI86 -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86OSpriv.h" -#include "xf86_OSlib.h" - -#include <sys/ci/ciioctl.h> -#define MPXNAME "/dev/atp1" -#define BASECPU 1 - -Bool mpxLock = TRUE; - -#define USE_VASMETHOD 1 - -/***************************************************************************/ -/* Video Memory Mapping section */ -/***************************************************************************/ - -static int sco_mcdone = 0, sco_ismc = 0; - -/***************************************************************************/ -/* - * To map the video memory, we first need to see if we are on a multi-console - * system. If we are, we need to try to use an existing video class in the - * kernel. We do this by retrieving the list of currently defined classes - * (via the new CONS_GETCLASS ioctl()) to see if we have a class that will - * match the range of memory we desire. If we can't find one, we have an - * error and we abort. - * - * If we are not using a multi-console, we can simply use mmap() to map in - * the frame buffer, using the classs-access method as a fall-back only if - * the mmap() fails (it shouldn't). We always set the appropriate pointers - * in the config structure to point ot the right function to map and unmap - * the video memory. An alternative to using mmap() is to use the new - * CONS_ADDVAS call, which will use vasmalloc() and vasbind() in the kernel - * to map the physical address to a virtual one, which it then returns. - * I am not 100% sure if this is faster or not, but it may prove easier to - * debug things. Just to be on the safe side, I have included both methods - * here, and the mmap() method can be used by setting USE_VASMETHOD to 0 - * above. - */ - -#if !defined(CONS_ADDVAS) -# undef USE_VASMETHOD -# define USE_VASMETHOD 0 -#endif - -static int -scoIsMultiConsole (void) -{ - int x; - - if (sco_mcdone) - return sco_ismc; - x = access ("/usr/lib/vidconf/.multiconsole", F_OK); - if (x == 0) - sco_ismc = 1; - sco_mcdone = 1; - return sco_ismc; -} - -/* - * This maps memory using mmap() - */ -static pointer -mapVidMemMMAP(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - int fd; - unsigned long realBase, alignOff; - pointer base; - - 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)); - return 0; /* NOTREACHED */ - } - - realBase = Base & ~(getpagesize() - 1); - alignOff = Base - realBase; - - DebugF("base: %lx, realBase: %lx, alignOff: %lx\n", Base,realBase,alignOff); - - base = mmap((caddr_t)0, Size + alignOff, - (flags & VIDMEM_READONLY) ? PROT_READ : (PROT_READ | PROT_WRITE), - MAP_SHARED, fd, (off_t)realBase); - close(fd); - if (base == MAP_FAILED) { - FatalError("xf86MapVidMem: Could not mmap framebuffer (0x%08x,0x%x) (%s)\n", - Base, Size, strerror(errno)); - return 0; /* NOTREACHED */ - } - - DebugF("base: %lx aligned base: %lx\n",base, base + alignOff); - return (pointer)((char *)base + alignOff); -} - -#if (USE_VASMETHOD) -/* - * This maps memory using the virtual address space (VAS) console calls. - */ -static pointer -mapVidMemVAS(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - struct vidvasmem vas; - pointer base; - - vas.base = (long)Base; - vas.size = (long)Size; - - base = (pointer)ioctl (xf86Info.consoleFd, CONS_ADDVAS, &vas); - if (base == (pointer)-1) { - return mapVidMemMMAP(ScreenNum, Base, Size, flags); - } - return base; -} -#endif /* USE_VASMETHOD */ - -struct vidclass vidclasslist[] = { - { "VBE", "", 0xf0000000, 0x2000000, 0 }, - { "P9000", "", 0xc0000000, 0x400000, 0 }, - { "TULIP", "", 0x80000000, 0x400000, 0 }, - { "VIPER", "", 0xa0000000, 0x400000, 0 }, - { "S3T", "", 0xa0000000, 0x200000, 0 }, - { "S3DT", "", 0x4000000, 0x400000, 0 }, - { "MGA", "", 0x2200000, 0x4000, 0 }, - { "CLVGA", "", 0xa0000, 0x20000, 0 }, - { "OLIVE", "", 0xd8000000, 0x400000, 0 }, - { "S3C", "", 0xa0000, 0x10000, 0 }, - { "MGAVLB", "", 0xac000, 0x34000, 0 }, - { "ATI8514", "", 0xFF000, 0x1000, 0 }, - { "GXREGS", "", 0xb0000, 0x10000, 0 }, - { "GX", "", 0xa0000, 0x10000, 0 }, - { "CT64300", "", 0xa0000000, 0x400000, 0 }, - { "SVGA", "", 0xa0000, 0x20000, 0 }, - { "S3V", "", 0xa0000000, 0x400000, 0 }, - { "8514A", "", 0xFF000, 0x1000, 0 }, - { "VGA", "", 0xa0000, 0x10000, 0 }, - { 0 } -}; - -static pointer -mapVidMemVC(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - struct vidclass *vcp; - char *class = NULL; - pointer base; - - for (vcp = vidclasslist; vcp->name; vcp++) { - if ((vcp->base == Base) && (vcp->size == Size)) { - class = vcp->name; - break; - } - } - - if (class == NULL) { - /* - * As a fall-back, we will try and use the mmap() approach. This may - * prove to be the wrong thing to do, but time and testing will tell. - */ - ErrorF("xf86MapVidMem: No class map defined for (0x%08x,0x%08x)\n", Base, Size); -#if USE_VASMETHOD - return mapVidMemVAS(ScreenNum, Base, Size, flags); -#else /* !USE_VASMETHOD */ - return mapVidMemMMAP(ScreenNum, Base, Size, flags); -#endif - } - - /* - * We found a suitable class. Try and use it. - */ - base = (pointer)ioctl(xf86Info.consoleFd, MAP_CLASS, class); - if ((int)base == -1) { - FatalError("xf86MapVidMem: Failed to map video memory class `%s'\n", class); - return 0; /* NOTREACHED */ - } - - return base; -} - -/* - * Unmapping the video memory is easy. We always call munmap(), as it is - * safe to do so even if we haven't actually mapped in any pages via mmap(). - * In the case where we used the video class, we don't need to do anything - * as the kernel will clean up the TSS when we exit, and will undo the - * vasbind() that was done when the class was originally mapped. If we used - * vasmap, we simply undo the map. Again, it is benign to call vasunmap - * even if we got the frame buffer via some other mechanism (like mmap). - */ - -static void -unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) -{ -#if USE_VASMETHOD - struct vidvasmem vas; - int x; - - vas.base = (long)Base; - vas.size = (long)Size; - - x = ioctl (xf86Info.consoleFd, CONS_DELVAS, &vas); - if (x == 0) - return; -#endif /* USE_VASMETHOD */ - - munmap(Base, Size); -} - -/* - * Set things up to point to our local functions. When the kernel gets - * MTRR support, we will need to add the required functions for that - * here too. MTRR support will most likely appear in 5.0.8 or 5.1.0. - * - * We also want to lock the X server process to the base CPU in an MPX - * system, since we will be going to IOPL 3. Most engine drivers can cope - * with I/O access on any CPU but there are a few (AST Manhattan I believe) - * that can't, so the server needs to be locked to CPU0. - */ -void -xf86OSInitVidMem(VidMemInfoPtr pVidMem) -{ - int mpx_fd; - - if (scoIsMultiConsole ()) { - pVidMem->mapMem = mapVidMemVC; - } else { -#if USE_VASMETHOD - pVidMem->mapMem = mapVidMemVAS; -#else - pVidMem->mapMem = mapVidMemMMAP; -#endif - } - - pVidMem->unmapMem = unmapVidMem; - pVidMem->linearSupported = TRUE; - pVidMem->initialised = TRUE; - - if (mpxLock && (mpx_fd = open (MPXNAME, O_RDONLY)) > 0) { - if (ioctl (mpx_fd, ACPU_XLOCK, BASECPU) < 0) - ErrorF ("xf86OSInitVidMem: Can not bind to CPU 0 (%s)\n", - strerror(errno)); - close (mpx_fd); - } -} - |