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      1 /*
      2  * Copyright 1990, 1991 by Thomas Roell, Dinkelscherben, Germany
      3  * Copyright 1992 by David Dawes <dawes (at) XFree86.org>
      4  * Copyright 1992 by Jim Tsillas <jtsilla (at) damon.ccs.northeastern.edu>
      5  * Copyright 1992 by Rich Murphey <Rich (at) Rice.edu>
      6  * Copyright 1992 by Robert Baron <Robert.Baron (at) ernst.mach.cs.cmu.edu>
      7  * Copyright 1992 by Orest Zborowski <obz (at) eskimo.com>
      8  * Copyright 1993 by Vrije Universiteit, The Netherlands
      9  * Copyright 1993 by David Wexelblat <dwex (at) XFree86.org>
     10  * Copyright 1994, 1996 by Holger Veit <Holger.Veit (at) 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 /*
     72  * The actual prototypes have been pulled into this seperate file so
     73  * that they can can be used without pulling in all of the OS specific
     74  * stuff like sys/stat.h, etc. This casues problem for loadable modules.
     75  */
     76 
     77 /*
     78  * Flags for xf86MapVidMem().  Multiple flags can be or'd together.  The
     79  * flags may be used as hints.  For example it would be permissible to
     80  * enable write combining for memory marked only for framebuffer use.
     81  */
     82 
     83 #define VIDMEM_FRAMEBUFFER	0x01	/* memory for framebuffer use */
     84 #define VIDMEM_MMIO		0x02	/* memory for I/O use */
     85 #define VIDMEM_MMIO_32BIT	0x04	/* memory accesses >= 32bit */
     86 #define VIDMEM_READSIDEEFFECT	0x08	/* reads can have side-effects */
     87 #define VIDMEM_SPARSE		0x10	/* sparse mapping required
     88 					 * assumed when VIDMEM_MMIO is
     89 					 * set. May be used with
     90 					 * VIDMEM_FRAMEBUFFER) */
     91 #define VIDMEM_READONLY		0x20	/* read-only mapping
     92 					 * used when reading BIOS images
     93 					 * through xf86MapVidMem() */
     94 
     95 /*
     96  * OS-independent modem state flags for xf86SetSerialModemState() and
     97  * xf86GetSerialModemState().
     98  */
     99 #define XF86_M_LE		0x001	/* line enable */
    100 #define XF86_M_DTR		0x002	/* data terminal ready */
    101 #define XF86_M_RTS		0x004	/* request to send */
    102 #define XF86_M_ST		0x008	/* secondary transmit */
    103 #define XF86_M_SR		0x010	/* secondary receive */
    104 #define XF86_M_CTS		0x020	/* clear to send */
    105 #define XF86_M_CAR		0x040	/* carrier detect */
    106 #define XF86_M_RNG		0x080	/* ring */
    107 #define XF86_M_DSR		0x100	/* data set ready */
    108 
    109 #ifndef NO_OSLIB_PROTOTYPES
    110 /*
    111  * This is to prevent re-entrancy to FatalError() when aborting.
    112  * Anything that can be called as a result of AbortDDX() should use this
    113  * instead of FatalError().
    114  */
    115 
    116 #define xf86FatalError(a, b) \
    117 	if (dispatchException & DE_TERMINATE) { \
    118 		ErrorF(a, b); \
    119 		ErrorF("\n"); \
    120 		return; \
    121 	} else FatalError(a, b)
    122 
    123 /***************************************************************************/
    124 /* Prototypes                                                              */
    125 /***************************************************************************/
    126 
    127 #include <X11/Xfuncproto.h>
    128 #include "opaque.h"
    129 
    130 _XFUNCPROTOBEGIN
    131 
    132 /* public functions */
    133 extern _X_EXPORT Bool xf86LinearVidMem(void);
    134 extern _X_EXPORT Bool xf86CheckMTRR(int);
    135 extern _X_EXPORT pointer xf86MapVidMem(int, int, unsigned long, unsigned long);
    136 extern _X_EXPORT void xf86UnMapVidMem(int, pointer, unsigned long);
    137 extern _X_EXPORT void xf86MapReadSideEffects(int, int, pointer, unsigned long);
    138 extern _X_EXPORT int xf86ReadBIOS(unsigned long, unsigned long, unsigned char *, int);
    139 extern _X_EXPORT Bool xf86EnableIO(void);
    140 extern _X_EXPORT void xf86DisableIO(void);
    141 #ifdef __NetBSD__
    142 extern _X_EXPORT void xf86SetTVOut(int);
    143 extern _X_EXPORT void xf86SetRGBOut(void);
    144 #endif
    145 extern _X_EXPORT void xf86OSRingBell(int, int, int);
    146 extern _X_EXPORT void xf86SetReallySlowBcopy(void);
    147 extern _X_EXPORT void xf86SlowBcopy(unsigned char *, unsigned char *, int);
    148 extern _X_EXPORT int xf86OpenSerial(pointer options);
    149 extern _X_EXPORT int xf86SetSerial(int fd, pointer options);
    150 extern _X_EXPORT int xf86SetSerialSpeed(int fd, int speed);
    151 extern _X_EXPORT int xf86ReadSerial(int fd, void *buf, int count);
    152 extern _X_EXPORT int xf86WriteSerial(int fd, const void *buf, int count);
    153 extern _X_EXPORT int xf86CloseSerial(int fd);
    154 extern _X_EXPORT int xf86FlushInput(int fd);
    155 extern _X_EXPORT int xf86WaitForInput(int fd, int timeout);
    156 extern _X_EXPORT int xf86SerialSendBreak(int fd, int duration);
    157 extern _X_EXPORT int xf86SetSerialModemState(int fd, int state);
    158 extern _X_EXPORT int xf86GetSerialModemState(int fd);
    159 extern _X_EXPORT int xf86SerialModemSetBits(int fd, int bits);
    160 extern _X_EXPORT int xf86SerialModemClearBits(int fd, int bits);
    161 extern _X_EXPORT int xf86LoadKernelModule(const char *pathname);
    162 
    163 /* AGP GART interface */
    164 
    165 typedef struct _AgpInfo {
    166 	CARD32		bridgeId;
    167 	CARD32		agpMode;
    168 	unsigned long	base;
    169 	unsigned long	size;
    170 	unsigned long	totalPages;
    171 	unsigned long	systemPages;
    172 	unsigned long	usedPages;
    173 } AgpInfo, *AgpInfoPtr;
    174 
    175 extern _X_EXPORT Bool xf86AgpGARTSupported(void);
    176 extern _X_EXPORT AgpInfoPtr xf86GetAGPInfo(int screenNum);
    177 extern _X_EXPORT Bool xf86AcquireGART(int screenNum);
    178 extern _X_EXPORT Bool xf86ReleaseGART(int screenNum);
    179 extern _X_EXPORT int xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
    180 				  unsigned long *physical);
    181 extern _X_EXPORT Bool xf86DeallocateGARTMemory(int screenNum, int key);
    182 extern _X_EXPORT Bool xf86BindGARTMemory(int screenNum, int key, unsigned long offset);
    183 extern _X_EXPORT Bool xf86UnbindGARTMemory(int screenNum, int key);
    184 extern _X_EXPORT Bool xf86EnableAGP(int screenNum, CARD32 mode);
    185 extern _X_EXPORT Bool xf86GARTCloseScreen(int screenNum);
    186 
    187 /* These routines are in shared/sigio.c and are not loaded as part of the
    188    module.  These routines are small, and the code if very POSIX-signal (or
    189    OS-signal) specific, so it seemed better to provide more complex
    190    wrappers than to wrap each individual function called. */
    191 extern _X_EXPORT int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
    192 extern _X_EXPORT int xf86RemoveSIGIOHandler(int fd);
    193 extern _X_EXPORT int xf86BlockSIGIO (void);
    194 extern _X_EXPORT void xf86UnblockSIGIO (int);
    195 extern _X_EXPORT void xf86AssertBlockedSIGIO (char *);
    196 extern _X_EXPORT Bool xf86SIGIOSupported (void);
    197 
    198 #ifdef XF86_OS_PRIVS
    199 typedef void (*PMClose)(void);
    200 extern _X_EXPORT void xf86OpenConsole(void);
    201 extern _X_EXPORT void xf86CloseConsole(void);
    202 extern _X_HIDDEN Bool xf86VTActivate(int vtno);
    203 extern _X_EXPORT Bool xf86VTSwitchPending(void);
    204 extern _X_EXPORT Bool xf86VTSwitchAway(void);
    205 extern _X_EXPORT Bool xf86VTSwitchTo(void);
    206 extern _X_EXPORT void xf86VTRequest(int sig);
    207 extern _X_EXPORT int xf86ProcessArgument(int, char **, int);
    208 extern _X_EXPORT void xf86UseMsg(void);
    209 extern _X_EXPORT PMClose xf86OSPMOpen(void);
    210 
    211 extern _X_EXPORT void xf86MakeNewMapping(int, int, unsigned long, unsigned long, pointer);
    212 extern _X_EXPORT void xf86InitVidMem(void);
    213 
    214 #endif /* XF86_OS_PRIVS */
    215 
    216 
    217 _XFUNCPROTOEND
    218 #endif /* NO_OSLIB_PROTOTYPES */
    219 
    220 #endif /* _XF86_OSPROC_H */
    221