diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c new file mode 100644 index 000000000..82cd1ae7b --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c @@ -0,0 +1,237 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sunos/sun_vid.c,v 1.2 2001/10/28 03:34:03 tsi Exp $ */ +/* + * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany + * Copyright 1993 by David Wexelblat <dwex@goblin.org> + * + * 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 names of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT + * SHALL THE COPYRIGHT HOLDERS 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 <sys/types.h> /* get __x86 definition if not set by compiler */ + +#if defined(i386) || defined(__x86) +#define _NEED_SYSI86 +#endif +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + +/***************************************************************************/ +/* Video Memory Mapping section */ +/***************************************************************************/ + +char *apertureDevName = NULL; + +Bool +xf86LinearVidMem(void) +{ + int mmapFd; + + if (apertureDevName) + return TRUE; + + apertureDevName = "/dev/xsvc"; + if ((mmapFd = open(apertureDevName, O_RDWR)) < 0) + { + apertureDevName = "/dev/fbs/aperture"; + if((mmapFd = open(apertureDevName, O_RDWR)) < 0) + { + xf86MsgVerb(X_WARNING, 0, + "xf86LinearVidMem: failed to open %s (%s)\n", + apertureDevName, strerror(errno)); + xf86MsgVerb(X_WARNING, 0, + "xf86LinearVidMem: either /dev/fbs/aperture or /dev/xsvc" + " device driver required\n"); + xf86MsgVerb(X_WARNING, 0, + "xf86LinearVidMem: linear memory access disabled\n"); + apertureDevName = NULL; + return FALSE; + } + } + close(mmapFd); + return TRUE; +} + +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); +} + +/* ARGSUSED */ +void +xf86UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size) +{ + munmap(Base, Size); +} + +/***************************************************************************/ +/* I/O Permissions section */ +/***************************************************************************/ + +#if defined(i386) || defined(__x86) +static Bool ExtendedEnabled = FALSE; +#endif + +Bool +xf86EnableIO(void) +{ +#if defined(i386) || defined(__x86) + if (ExtendedEnabled) + return TRUE; + + if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) { + xf86Msg(X_WARNING,"xf86EnableIOPorts: Failed to set IOPL for I/O\n"); + return FALSE; + } + ExtendedEnabled = TRUE; +#endif /* i386 */ + return TRUE; +} + +void +xf86DisableIO(void) +{ +#if defined(i386) || defined(__x86) + if(!ExtendedEnabled) + return; + + sysi86(SI86V86, V86SC_IOPL, 0); + + ExtendedEnabled = FALSE; +#endif /* i386 */ +} + + +/***************************************************************************/ +/* Interrupt Handling section */ +/***************************************************************************/ + +Bool xf86DisableInterrupts(void) +{ +#if defined(i386) || defined(__x86) + if (!ExtendedEnabled && (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0)) + return FALSE; + +#ifdef __GNUC__ + __asm__ __volatile__("cli"); +#else + asm("cli"); +#endif /* __GNUC__ */ + + if (!ExtendedEnabled) + sysi86(SI86V86, V86SC_IOPL, 0); +#endif /* i386 */ + + return TRUE; +} + +void xf86EnableInterrupts(void) +{ +#if defined(i386) || defined(__x86) + if (!ExtendedEnabled && (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0)) + return; + +#ifdef __GNUC__ + __asm__ __volatile__("sti"); +#else + asm("sti"); +#endif /* __GNUC__ */ + + if (!ExtendedEnabled) + sysi86(SI86V86, V86SC_IOPL, 0); +#endif /* i386 */ +} + +void +xf86MapReadSideEffects(int ScreenNum, int Flags, pointer Base, + unsigned long Size) +{ +} + +Bool +xf86CheckMTRR(int ScreenNum) +{ + return FALSE; +} + |