vidix/dha.h

   1 /*
   2  * VIDIX Direct Hardware Access (DHA).
   3  * Copyright (C) 2002 Nick Kurshev
   4  *
   5  * This file is part of MPlayer.
   6  *
   7  * MPlayer is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * MPlayer is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with MPlayer; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  *
  21  *   1996/10/27 - Robin Cutshaw (robin@xfree86.org)
  22  *                XFree86 3.3.3 implementation
  23  *   1999       - Øyvind Aabling.
  24  *                Modified for GATOS/win/gfxdump.
  25  *
  26  *   2002       - library implementation by Nick Kurshev
  27  *              - dhahelper and some changes by Alex Beregszaszi
  28  *
  29  *   Supported O/S's:   SVR4, UnixWare, SCO, Solaris,
  30  *                      FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
  31  *                      Linux, Mach/386, ISC
  32  *                      DOS (WATCOM 9.5 compiler), Win9x (with mapdev.vxd)
  33  *   Original location: www.linuxvideo.org/gatos
  34  */
  35
  36 #ifndef LIBDHA_H
  37 #define LIBDHA_H
  38
  39 #ifdef __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 #define MAX_DEV_PER_VENDOR_CFG1 64
  44 #define MAX_PCI_DEVICES_PER_BUS 32
  45 #define MAX_PCI_DEVICES         64
  46 #define PCI_MULTIFUNC_DEV       0x80
  47 #define PCI_COMMAND_IO          0x1     /* Enable response to I/O space */
  48
  49 typedef struct pciinfo_s
  50 {
  51   int           bus,card,func;                  /* PCI/AGP bus:card:func */
  52   unsigned short command;                       /* Device control register */
  53   unsigned short vendor,device;                 /* Card vendor+device ID */
  54   unsigned      base0,base1,base2,baserom;      /* Memory and I/O base addresses */
  55 //  unsigned    base0_limit, base1_limit, base2_limit, baserom_limit;
  56 }pciinfo_t;
  57
  58 /* needed for mga_vid */
  59 extern int pci_config_read(unsigned char bus, unsigned char dev, unsigned char func,
  60                         unsigned char cmd, int len, unsigned long *val);
  61                         /* Fill array pci_list which must have size MAX_PCI_DEVICES
  62                            and return 0 if sucessful */
  63 extern int  pci_scan(pciinfo_t *pci_list,unsigned *num_card);
  64
  65
  66             /* Enables/disables accessing to IO space from application side.
  67                Should return 0 if o'k or errno on error. */
  68 extern int enable_app_io( void );
  69 extern int disable_app_io( void );
  70
  71 extern unsigned char  INPORT8(unsigned idx);
  72 extern unsigned short INPORT16(unsigned idx);
  73 extern unsigned       INPORT32(unsigned idx);
  74 #define INPORT(idx) INPORT32(idx)
  75 extern void          OUTPORT8(unsigned idx,unsigned char val);
  76 extern void          OUTPORT16(unsigned idx,unsigned short val);
  77 extern void          OUTPORT32(unsigned idx,unsigned val);
  78 #define OUTPORT(idx,val) OUTPORT32(idx,val)
  79
  80 extern void *  map_phys_mem(unsigned long base, unsigned long size);
  81 extern void    unmap_phys_mem(void *ptr, unsigned long size);
  82
  83 /*  These are the region types  */
  84 #define MTRR_TYPE_UNCACHABLE 0
  85 #define MTRR_TYPE_WRCOMB     1
  86 #define MTRR_TYPE_WRTHROUGH  4
  87 #define MTRR_TYPE_WRPROT     5
  88 #define MTRR_TYPE_WRBACK     6
  89 extern int      mtrr_set_type(unsigned base,unsigned size,int type);
  90
  91 #ifdef __cplusplus
  92 }
  93 #endif
  94
  95 #endif