diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c new file mode 100644 index 000000000..25336d68a --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c @@ -0,0 +1,441 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/dgux/dgux_video.c,v 1.6tsi Exp $ */ +/* + * INTEL DG/UX RELEASE 4.20 MU03 + * Copyright 1997 Takis Psarogiannakopoulos Cambridge,UK + * <takis@dpmms.cam.ac.uk> + * + * + * 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. + * XFREE86 PROJECT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE. + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FITNESS, IN NO EVENT SHALL XCONSORTIUM 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. + * + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include "input.h" +#include "scrnintstr.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + +/* Stuff for the SET_IOPL() ,RESET_IOPL() */ +/* #include <fcntl.h> */ +static int io_takis; +int set_takis; + + +/***************************************************************************/ +/* SET_IOPL() and RESET_IOPL() section for ix86 DG/ux 4.20MU03 */ +/***************************************************************************/ + + +int SET_IOPL() +{ + io_takis=open("/dev/console", O_RDWR,0); + if ((io_takis) < 0) + { + return(-1); + } + set_takis = ioctl(io_takis,KDENABIO,0); + + if (set_takis < 0) + { + return(-1); + } + return(1); +} + + + + +void RESET_IOPL() +{ + + ioctl(io_takis,KDDISABIO,0); + close(io_takis); + return; + +} + +/***************************************************************************/ +/* DG/ux Video Memory Mapping part */ +/***************************************************************************/ + +#undef HAS_SVR3_MMAPDRV /* ix86 DG/ux is a typical SVR4 without SVR3_MMAPDRV */ + +Bool xf86LinearVidMem() +{ + return(TRUE); +} + +pointer +xf86MapVidMem(int ScreenNum, int Flags, unsigned long Base, unsigned long Size) +{ + pointer base; + int fd; + + 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)); + } + + return(base); +} + +void xf86UnMapVidMem(ScreenNum, Region, Base, Size) +int ScreenNum; +int Region; +pointer Base; +unsigned long Size; +{ + munmap(Base, Size); +} + +/***************************************************************************/ +/* I/O Permissions section */ +/***************************************************************************/ + +#define ALWAYS_USE_EXTENDED +#ifdef ALWAYS_USE_EXTENDED + +static Bool ScreenEnabled[MAXSCREENS]; +static Bool ExtendedEnabled = FALSE; +static Bool InitDone = FALSE; + +void +xf86ClearIOPortList(ScreenNum) +int ScreenNum; +{ + if (!InitDone) + { + int i; + for (i = 0; i < MAXSCREENS; i++) + ScreenEnabled[i] = FALSE; + InitDone = TRUE; + } + return; +} + +void +xf86AddIOPorts(ScreenNum, NumPorts, Ports) +int ScreenNum; +int NumPorts; +unsigned *Ports; +{ + return; +} + +void +xf86EnableIOPorts(ScreenNum) +int ScreenNum; +{ + int i; + + ScreenEnabled[ScreenNum] = TRUE; + + if (ExtendedEnabled) + return; + + if (SET_IOPL() < 0) + { + FatalError("%s: Failed to set IOPL for extended I/O\n", + "xf86EnableIOPorts"); + } + ExtendedEnabled = TRUE; + + return; +} + +void +xf86DisableIOPorts(ScreenNum) +int ScreenNum; +{ + int i; + + ScreenEnabled[ScreenNum] = FALSE; + + if (!ExtendedEnabled) + return; + + for (i = 0; i < MAXSCREENS; i++) + if (ScreenEnabled[i]) + return; + + RESET_IOPL(); + ExtendedEnabled = FALSE; + + return; +} + +#else /* !ALWAYS_USE_EXTENDED */ + +#define DISABLED 0 +#define NON_EXTENDED 1 +#define EXTENDED 2 + +static unsigned *EnabledPorts[MAXSCREENS]; +static int NumEnabledPorts[MAXSCREENS]; +static Bool ScreenEnabled[MAXSCREENS]; +static Bool ExtendedPorts[MAXSCREENS]; +static Bool ExtendedEnabled = FALSE; +static Bool InitDone = FALSE; +static struct kd_disparam OrigParams; + +void xf86ClearIOPortList(ScreenNum) +int ScreenNum; +{ + if (!InitDone) + { + xf86InitPortLists(EnabledPorts, NumEnabledPorts, ScreenEnabled, + ExtendedPorts, MAXSCREENS); + if (ioctl(xf86Info.consoleFd, KDDISPTYPE, &OrigParams) < 0) + { + FatalError("%s: Could not get display parameters\n", + "xf86ClearIOPortList"); + } + InitDone = TRUE; + return; + } + ExtendedPorts[ScreenNum] = FALSE; + if (EnabledPorts[ScreenNum] != (unsigned *)NULL) + xfree(EnabledPorts[ScreenNum]); + EnabledPorts[ScreenNum] = (unsigned *)NULL; + NumEnabledPorts[ScreenNum] = 0; +} + +void xf86AddIOPorts(ScreenNum, NumPorts, Ports) +int ScreenNum; +int NumPorts; +unsigned *Ports; +{ + int i; + + if (!InitDone) + { + FatalError("xf86AddIOPorts: I/O control lists not initialised\n"); + } + EnabledPorts[ScreenNum] = xrealloc(EnabledPorts[ScreenNum], + (NumEnabledPorts[ScreenNum]+NumPorts)*sizeof(unsigned)); + for (i = 0; i < NumPorts; i++) + { + EnabledPorts[ScreenNum][NumEnabledPorts[ScreenNum] + i] = + Ports[i]; + if (Ports[i] > 0x3FF) + ExtendedPorts[ScreenNum] = TRUE; + } + NumEnabledPorts[ScreenNum] += NumPorts; +} + +void xf86EnableIOPorts(ScreenNum) +int ScreenNum; +{ + struct kd_disparam param; + int i, j; + + if (ScreenEnabled[ScreenNum]) + return; + + for (i = 0; i < MAXSCREENS; i++) + { + if (ExtendedPorts[i] && (ScreenEnabled[i] || i == ScreenNum)) + { + if (SET_IOPL() < 0) + { + FatalError("%s: Failed to set IOPL for extended I/O\n", + "xf86EnableIOPorts"); + } + ExtendedEnabled = TRUE; + break; + } + } + if (ExtendedEnabled && i == MAXSCREENS) + { + RESET_IOPL(); + ExtendedEnabled = FALSE; + } + if (ioctl(xf86Info.consoleFd, KDDISPTYPE, ¶m) < 0) + { + FatalError("%s: Could not get display parameters\n", + "xf86EnableIOPorts"); + } + for (i = 0; i < NumEnabledPorts[ScreenNum]; i++) + { + unsigned port = EnabledPorts[ScreenNum][i]; + + if (port > 0x3FF) + continue; + + if (!xf86CheckPorts(port, EnabledPorts, NumEnabledPorts, + ScreenEnabled, MAXSCREENS)) + { + continue; + } + for (j=0; j < MKDIOADDR; j++) + { + if (param.ioaddr[j] == port) + { + break; + } + } + if (j == MKDIOADDR) + { + if (ioctl(xf86Info.consoleFd, KDADDIO, port) < 0) + { + FatalError("%s: Failed to enable port 0x%x\n", + "xf86EnableIOPorts", port); + } + } + } + if (ioctl(xf86Info.consoleFd, KDENABIO, 0) < 0) + { + FatalError("xf86EnableIOPorts: I/O port enable failed (%s)\n", + strerror(errno)); + } + ScreenEnabled[ScreenNum] = TRUE; + return; +} + +void xf86DisableIOPorts(ScreenNum) +int ScreenNum; +{ + struct kd_disparam param; + int i, j; + + if (!ScreenEnabled[ScreenNum]) + return; + + ScreenEnabled[ScreenNum] = FALSE; + for (i = 0; i < MAXSCREENS; i++) + { + if (ScreenEnabled[i] && ExtendedPorts[i]) + break; + } + if (ExtendedEnabled && i == MAXSCREENS) + { + RESET_IOPL(); + ExtendedEnabled = FALSE; + } + /* Turn off I/O before changing the access list */ + ioctl(xf86Info.consoleFd, KDDISABIO, 0); + if (ioctl(xf86Info.consoleFd, KDDISPTYPE, ¶m) < 0) + { + ErrorF("%s: Could not get display parameters\n", + "xf86DisableIOPorts"); + return; + } + + for (i=0; i < MKDIOADDR; i++) + { + if (param.ioaddr[i] == 0) + { + break; + } + if (!xf86CheckPorts(param.ioaddr[i], EnabledPorts, + NumEnabledPorts, ScreenEnabled, MAXSCREENS)) + { + continue; + } + for (j=0; j < MKDIOADDR; j++) + { + if (param.ioaddr[i] == OrigParams.ioaddr[j]) + { + /* + * Port was one of the original ones; don't + * touch it. + */ + break; + } + } + if (j == MKDIOADDR) + { + /* + * We added this port, so remove it. + */ + ioctl(xf86Info.consoleFd, KDDELIO, param.ioaddr[i]); + } + } + for (i = 0; i < MAXSCREENS; i++) + { + if (ScreenEnabled[i]) + { + ioctl(xf86Info.consoleFd, KDENABIO, 0); + break; + } + } + return; +} +#endif + +void xf86DisableIOPrivs() +{ + if (ExtendedEnabled) + RESET_IOPL(); + return; +} + +/***************************************************************************/ +/* Interrupt Handling section */ +/***************************************************************************/ + + +Bool xf86DisableInterrupts() +{ + +#ifdef __GNUC__ + __asm__ __volatile__("cli"); +#else + asm("cli"); +#endif /* __GNUC__ */ + + return(TRUE); +} + +void xf86EnableInterrupts() +{ + +#ifdef __GNUC__ + __asm__ __volatile__("sti"); +#else + asm("sti"); +#endif /* __GNUC__ */ + + return; +} + + +void +xf86MapReadSideEffects(int ScreenNum, int Flags, pointer Base, + unsigned long Size) +{ +} + |