libdha/libdha.h

   1 /*
   2     libgha.h - Library for direct hardware access
   3     Copyrights:
   4     1996/10/27  - Robin Cutshaw (robin@xfree86.org)
   5                   XFree86 3.3.3 implementation
   6     1999        - Øyvind Aabling.
   7                   Modified for GATOS/win/gfxdump.
   8     2002        - library implementation by Nick Kurshev
   9
  10     supported O/S's:    SVR4, UnixWare, SCO, Solaris,
  11                         FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
  12                         Linux, Mach/386, ISC
  13                         DOS (WATCOM 9.5 compiler), Win9x (with mapdev.vxd)
  14     Licence: GPL
  15 */
  16 #ifndef LIBDHA_H
  17 #define LIBDHA_H
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 #define MAX_DEV_PER_VENDOR_CFG1 64
  24 #define MAX_PCI_DEVICES_PER_BUS 32
  25 #define MAX_PCI_DEVICES         64
  26 #define PCI_MULTIFUNC_DEV       0x80
  27 #define PCI_COMMAND_IO          0x1     /* Enable response to I/O space */
  28
  29 typedef struct pciinfo_s
  30 {
  31   int           bus,card,func;                  /* PCI/AGP bus:card:func */
  32   unsigned short command;                       /* Device control register */
  33   unsigned short vendor,device;                 /* Card vendor+device ID */
  34   unsigned      base0,base1,base2,baserom;      /* Memory and I/O base addresses */
  35 //  unsigned    base0_limit, base1_limit, base2_limit, baserom_limit;
  36 }pciinfo_t;
  37
  38 /* needed for mga_vid */
  39 extern int pci_config_read(unsigned char bus, unsigned char dev, unsigned char func,
  40                         unsigned char cmd, int len, unsigned long *val);
  41                         /* Fill array pci_list which must have size MAX_PCI_DEVICES
  42                            and return 0 if sucessful */
  43 extern int  pci_scan(pciinfo_t *pci_list,unsigned *num_card);
  44
  45
  46             /* Enables/disables accessing to IO space from application side.
  47                Should return 0 if o'k or errno on error. */
  48 extern int enable_app_io( void );
  49 extern int disable_app_io( void );
  50
  51 extern unsigned char  INPORT8(unsigned idx);
  52 extern unsigned short INPORT16(unsigned idx);
  53 extern unsigned       INPORT32(unsigned idx);
  54 #define INPORT(idx) INPORT32(idx)
  55 extern void          OUTPORT8(unsigned idx,unsigned char val);
  56 extern void          OUTPORT16(unsigned idx,unsigned short val);
  57 extern void          OUTPORT32(unsigned idx,unsigned val);
  58 #define OUTPORT(idx,val) OUTPORT32(idx,val)
  59
  60 extern void *  map_phys_mem(unsigned long base, unsigned long size);
  61 extern void    unmap_phys_mem(void *ptr, unsigned long size);
  62
  63 /*  These are the region types  */
  64 #define MTRR_TYPE_UNCACHABLE 0
  65 #define MTRR_TYPE_WRCOMB     1
  66 #define MTRR_TYPE_WRTHROUGH  4
  67 #define MTRR_TYPE_WRPROT     5
  68 #define MTRR_TYPE_WRBACK     6
  69 extern int      mtrr_set_type(unsigned base,unsigned size,int type);
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 #endif