xorg-server-1.4/hw/xfree86/os-support/xf86_OSproc.h

   1 /*
   2  * Copyright 1990, 1991 by Thomas Roell, Dinkelscherben, Germany
   3  * Copyright 1992 by David Dawes <dawes@XFree86.org>
   4  * Copyright 1992 by Jim Tsillas <jtsilla@damon.ccs.northeastern.edu>
   5  * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
   6  * Copyright 1992 by Robert Baron <Robert.Baron@ernst.mach.cs.cmu.edu>
   7  * Copyright 1992 by Orest Zborowski <obz@eskimo.com>
   8  * Copyright 1993 by Vrije Universiteit, The Netherlands
   9  * Copyright 1993 by David Wexelblat <dwex@XFree86.org>
  10  * Copyright 1994, 1996 by Holger Veit <Holger.Veit@gmd.de>
  11  * Copyright 1994-2003 by The XFree86 Project, Inc
  12  *
  13  * Permission to use, copy, modify, distribute, and sell this software and its
  14  * documentation for any purpose is hereby granted without fee, provided that
  15  * the above copyright notice appear in all copies and that both that
  16  * copyright notice and this permission notice appear in supporting
  17  * documentation, and that the names of the above listed copyright holders
  18  * not be used in advertising or publicity pertaining to distribution of
  19  * the software without specific, written prior permission.  The above listed
  20  * copyright holders make no representations about the suitability of this
  21  * software for any purpose.  It is provided "as is" without express or
  22  * implied warranty.
  23  *
  24  * THE ABOVE LISTED COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD
  25  * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  26  * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDERS BE
  27  * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  28  * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
  29  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  30  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  31  *
  32  */
  33
  34 /*
  35  * The ARM32 code here carries the following copyright:
  36  *
  37  * Copyright 1997
  38  * Digital Equipment Corporation. All rights reserved.
  39  * This software is furnished under license and may be used and copied only in
  40  * accordance with the following terms and conditions.  Subject to these
  41  * conditions, you may download, copy, install, use, modify and distribute
  42  * this software in source and/or binary form. No title or ownership is
  43  * transferred hereby.
  44  *
  45  * 1) Any source code used, modified or distributed must reproduce and retain
  46  *    this copyright notice and list of conditions as they appear in the
  47  *    source file.
  48  *
  49  * 2) No right is granted to use any trade name, trademark, or logo of Digital
  50  *    Equipment Corporation. Neither the "Digital Equipment Corporation"
  51  *    name nor any trademark or logo of Digital Equipment Corporation may be
  52  *    used to endorse or promote products derived from this software without
  53  *    the prior written permission of Digital Equipment Corporation.
  54  *
  55  * 3) This software is provided "AS-IS" and any express or implied warranties,
  56  *    including but not limited to, any implied warranties of merchantability,
  57  *    fitness for a particular purpose, or non-infringement are disclaimed.
  58  *    In no event shall DIGITAL be liable for any damages whatsoever, and in
  59  *    particular, DIGITAL shall not be liable for special, indirect,
  60  *    consequential, or incidental damages or damages for lost profits, loss
  61  *    of revenue or loss of use, whether such damages arise in contract,
  62  *    negligence, tort, under statute, in equity, at law or otherwise, even
  63  *    if advised of the possibility of such damage.
  64  *
  65  */
  66
  67
  68 #ifndef _XF86_OSPROC_H
  69 #define _XF86_OSPROC_H
  70
  71 #ifdef XF86_OS_PRIVS
  72 #include "xf86Pci.h"
  73 #endif
  74
  75 /*
  76  * The actual prototypes have been pulled into this seperate file so
  77  * that they can can be used without pulling in all of the OS specific
  78  * stuff like sys/stat.h, etc. This casues problem for loadable modules.
  79  */
  80
  81 /*
  82  * Flags for xf86MapVidMem().  Multiple flags can be or'd together.  The
  83  * flags may be used as hints.  For example it would be permissible to
  84  * enable write combining for memory marked only for framebuffer use.
  85  */
  86
  87 #define VIDMEM_FRAMEBUFFER      0x01    /* memory for framebuffer use */
  88 #define VIDMEM_MMIO             0x02    /* memory for I/O use */
  89 #define VIDMEM_MMIO_32BIT       0x04    /* memory accesses >= 32bit */
  90 #define VIDMEM_READSIDEEFFECT   0x08    /* reads can have side-effects */
  91 #define VIDMEM_SPARSE           0x10    /* sparse mapping required
  92                                          * assumed when VIDMEM_MMIO is
  93                                          * set. May be used with
  94                                          * VIDMEM_FRAMEBUFFER) */
  95 #define VIDMEM_READONLY         0x20    /* read-only mapping
  96                                          * used when reading BIOS images
  97                                          * through xf86MapVidMem() */
  98
  99 /*
 100  * OS-independent modem state flags for xf86SetSerialModemState() and
 101  * xf86GetSerialModemState().
 102  */
 103 #define XF86_M_LE               0x001   /* line enable */
 104 #define XF86_M_DTR              0x002   /* data terminal ready */
 105 #define XF86_M_RTS              0x004   /* request to send */
 106 #define XF86_M_ST               0x008   /* secondary transmit */
 107 #define XF86_M_SR               0x010   /* secondary receive */
 108 #define XF86_M_CTS              0x020   /* clear to send */
 109 #define XF86_M_CAR              0x040   /* carrier detect */
 110 #define XF86_M_RNG              0x080   /* ring */
 111 #define XF86_M_DSR              0x100   /* data set ready */
 112
 113 #ifdef XF86_OS_PRIVS
 114 extern void xf86WrapperInit(void);
 115 #endif
 116
 117 #ifndef NO_OSLIB_PROTOTYPES
 118 /*
 119  * This is to prevent re-entrancy to FatalError() when aborting.
 120  * Anything that can be called as a result of AbortDDX() should use this
 121  * instead of FatalError().
 122  */
 123
 124 #define xf86FatalError(a, b) \
 125         if (dispatchException & DE_TERMINATE) { \
 126                 ErrorF(a, b); \
 127                 ErrorF("\n"); \
 128                 return; \
 129         } else FatalError(a, b)
 130
 131 /***************************************************************************/
 132 /* Prototypes                                                              */
 133 /***************************************************************************/
 134
 135 #include <X11/Xfuncproto.h>
 136 #include "opaque.h"
 137
 138 _XFUNCPROTOBEGIN
 139
 140 /* public functions */
 141 extern Bool xf86LinearVidMem(void);
 142 extern Bool xf86CheckMTRR(int);
 143 extern pointer xf86MapVidMem(int, int, unsigned long, unsigned long);
 144 extern void xf86UnMapVidMem(int, pointer, unsigned long);
 145 extern void xf86MapReadSideEffects(int, int, pointer, unsigned long);
 146 extern int xf86ReadBIOS(unsigned long, unsigned long, unsigned char *, int);
 147 extern Bool xf86EnableIO(void);
 148 extern void xf86DisableIO(void);
 149 extern Bool xf86DisableInterrupts(void);
 150 extern void xf86EnableInterrupts(void);
 151 extern void xf86SetTVOut(int);
 152 extern void xf86SetRGBOut(void);
 153 extern void xf86OSRingBell(int, int, int);
 154 #if defined(QNX4)
 155 #pragma aux xf86BusToMem modify [eax ebx ecx edx esi edi];
 156 #pragma aux xf86MemToBus modify [eax ebx ecx edx esi edi];
 157 #endif
 158 extern void xf86BusToMem(unsigned char *, unsigned char *, int);
 159 extern void xf86MemToBus(unsigned char *, unsigned char *, int);
 160 extern void xf86IODelay(void);
 161 extern void xf86UDelay(long usec);
 162 extern void xf86SetReallySlowBcopy(void);
 163 extern void xf86SlowBcopy(unsigned char *, unsigned char *, int);
 164 extern int xf86OpenSerial(pointer options);
 165 extern int xf86SetSerial(int fd, pointer options);
 166 extern int xf86SetSerialSpeed(int fd, int speed);
 167 extern int xf86ReadSerial(int fd, void *buf, int count);
 168 extern int xf86WriteSerial(int fd, const void *buf, int count);
 169 extern int xf86CloseSerial(int fd);
 170 extern int xf86FlushInput(int fd);
 171 extern int xf86WaitForInput(int fd, int timeout);
 172 extern int xf86SerialSendBreak(int fd, int duration);
 173 extern int xf86SetSerialModemState(int fd, int state);
 174 extern int xf86GetSerialModemState(int fd);
 175 extern int xf86SerialModemSetBits(int fd, int bits);
 176 extern int xf86SerialModemClearBits(int fd, int bits);
 177 extern int xf86LoadKernelModule(const char *pathname);
 178 extern void xf86RingBell(int volume, int pitch, int duration);
 179
 180 /* AGP GART interface */
 181
 182 typedef struct _AgpInfo {
 183         CARD32          bridgeId;
 184         CARD32          agpMode;
 185         unsigned long   base;
 186         unsigned long   size;
 187         unsigned long   totalPages;
 188         unsigned long   systemPages;
 189         unsigned long   usedPages;
 190 } AgpInfo, *AgpInfoPtr;
 191
 192 extern Bool xf86AgpGARTSupported(void);
 193 extern AgpInfoPtr xf86GetAGPInfo(int screenNum);
 194 extern Bool xf86AcquireGART(int screenNum);
 195 extern Bool xf86ReleaseGART(int screenNum);
 196 extern int xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
 197                                   unsigned long *physical);
 198 extern Bool xf86DeallocateGARTMemory(int screenNum, int key);
 199 extern Bool xf86BindGARTMemory(int screenNum, int key, unsigned long offset);
 200 extern Bool xf86UnbindGARTMemory(int screenNum, int key);
 201 extern Bool xf86EnableAGP(int screenNum, CARD32 mode);
 202 extern Bool xf86GARTCloseScreen(int screenNum);
 203
 204 /* These routines are in shared/sigio.c and are not loaded as part of the
 205    module.  These routines are small, and the code if very POSIX-signal (or
 206    OS-signal) specific, so it seemed better to provide more complex
 207    wrappers than to wrap each individual function called. */
 208 extern int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
 209 extern int xf86RemoveSIGIOHandler(int fd);
 210 extern int xf86BlockSIGIO (void);
 211 extern void xf86UnblockSIGIO (int);
 212 extern void xf86AssertBlockedSIGIO (char *);
 213 extern Bool xf86SIGIOSupported (void);
 214
 215 #ifdef XF86_OS_PRIVS
 216 typedef void (*PMClose)(void);
 217 extern void xf86OpenConsole(void);
 218 extern void xf86CloseConsole(void);
 219 extern Bool xf86VTSwitchPending(void);
 220 extern Bool xf86VTSwitchAway(void);
 221 extern Bool xf86VTSwitchTo(void);
 222 extern void xf86VTRequest(int sig);
 223 extern int xf86ProcessArgument(int, char **, int);
 224 extern void xf86UseMsg(void);
 225 extern void xf86ReloadInputDevs(int sig);
 226 extern PMClose xf86OSPMOpen(void);
 227
 228 #ifdef NEED_OS_RAC_PROTOS
 229 /* RAC-related privs */
 230 /* internal to os-support layer */
 231 resPtr xf86StdBusAccWindowsFromOS(void);
 232 resPtr xf86StdPciAccWindowsFromOS(void);
 233 resPtr xf86StdIsaAccWindowsFromOS(void);
 234 resPtr xf86StdAccResFromOS(resPtr ret);
 235
 236 /* available to the common layer */
 237 resPtr xf86BusAccWindowsFromOS(void);
 238 resPtr xf86PciBusAccWindowsFromOS(void);
 239 #ifdef INCLUDE_UNUSED
 240 resPtr xf86IsaBusAccWindowsFromOS(void);
 241 #endif
 242 resPtr xf86AccResFromOS(resPtr ret);
 243 #endif /* NEED_OS_RAC_PROTOS */
 244
 245 extern Bool xf86GetPciSizeFromOS(PCITAG tag, int indx, int* bits);
 246 extern Bool xf86GetPciOffsetFromOS(PCITAG tag, int indx, unsigned long* bases);
 247 extern unsigned long xf86GetOSOffsetFromPCI(PCITAG tag, int space, unsigned long base);
 248
 249 extern void xf86MakeNewMapping(int, int, unsigned long, unsigned long, pointer);
 250 extern void xf86InitVidMem(void);
 251
 252 #endif /* XF86_OS_PRIVS */
 253
 254
 255 _XFUNCPROTOEND
 256 #endif /* NO_OSLIB_PROTOTYPES */
 257
 258 #endif /* _XF86_OSPROC_H */