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/*
libgha.h - Library for direct hardware access
Copyrights:
1996/10/27 - Robin Cutshaw (robin@xfree86.org)
XFree86 3.3.3 implementation
1999 - Øyvind Aabling.
Modified for GATOS/win/gfxdump.
2002 - library implementation by Nick Kurshev
supported O/S's: SVR4, UnixWare, SCO, Solaris,
FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
Linux, Mach/386, ISC
DOS (WATCOM 9.5 compiler), Win9x (with mapdev.vxd)
Licence: GPL
*/
#ifndef LIBDHA_H
#define LIBDHA_H
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_DEV_PER_VENDOR_CFG1 64
#define MAX_PCI_DEVICES_PER_BUS 32
#define MAX_PCI_DEVICES 64
#define PCI_MULTIFUNC_DEV 0x80
#define PCI_COMMAND_IO 0x1 /* Enable response to I/O space */
typedef struct pciinfo_s
{
int bus,card,func; /* PCI/AGP bus:card:func */
unsigned short command; /* Device control register */
unsigned short vendor,device; /* Card vendor+device ID */
unsigned base0,base1,base2,baserom; /* Memory and I/O base addresses */
// unsigned base0_limit, base1_limit, base2_limit, baserom_limit;
}pciinfo_t;
/* needed for mga_vid */
extern int pci_config_read(unsigned char bus, unsigned char dev, unsigned char func,
unsigned char cmd, int len, unsigned long *val);
/* Fill array pci_list which must have size MAX_PCI_DEVICES
and return 0 if sucessful */
extern int pci_scan(pciinfo_t *pci_list,unsigned *num_card);
/* Enables/disables accessing to IO space from application side.
Should return 0 if o'k or errno on error. */
extern int enable_app_io( void );
extern int disable_app_io( void );
extern unsigned char INPORT8(unsigned idx);
extern unsigned short INPORT16(unsigned idx);
extern unsigned INPORT32(unsigned idx);
#define INPORT(idx) INPORT32(idx)
extern void OUTPORT8(unsigned idx,unsigned char val);
extern void OUTPORT16(unsigned idx,unsigned short val);
extern void OUTPORT32(unsigned idx,unsigned val);
#define OUTPORT(idx,val) OUTPORT32(idx,val)
extern void * map_phys_mem(unsigned long base, unsigned long size);
extern void unmap_phys_mem(void *ptr, unsigned long size);
/* These are the region types */
#define MTRR_TYPE_UNCACHABLE 0
#define MTRR_TYPE_WRCOMB 1
#define MTRR_TYPE_WRTHROUGH 4
#define MTRR_TYPE_WRPROT 5
#define MTRR_TYPE_WRBACK 6
extern int mtrr_set_type(unsigned base,unsigned size,int type);
#ifdef __cplusplus
}
#endif
#endif
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