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Diffstat (limited to 'src/video_out/libdha/libdha.h')
| -rw-r--r-- | src/video_out/libdha/libdha.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/video_out/libdha/libdha.h b/src/video_out/libdha/libdha.h new file mode 100644 index 000000000..bc319a39f --- /dev/null +++ b/src/video_out/libdha/libdha.h @@ -0,0 +1,96 @@ +/* + 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 + +typedef struct pciinfo_s +{ + int bus,card,func; /* PCI/AGP bus:card:func */ + 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); + +/* Busmastering support */ + /* returns 0 if support exists else errno */ +extern int bm_open( void ); +extern void bm_close( void ); + /* Converts virtual memory addresses into physical + returns 0 if OK else - errno + parray should have enough length to accept length/page_size + elements. virt_addr can be located in non-continious memory + block and can be allocated by malloc(). (kmalloc() is not + needed). Note: if you have some very old card which requires + continous memory block then you need to implement bm_kmalloc + bm_kfree functions here. NOTE2: to be sure that every page of + region is present in physical memory (is not swapped out) use + m(un)lock functions. Note3: Probably your card will want to + have page-aligned block for DMA transfer so use + memalign(PAGE_SIZE,mem_size) function to alloc such memory. */ +extern int bm_virt_to_phys( void * virt_addr, unsigned long length, + unsigned long * parray ); + /* Converts virtual memory addresses into bus address + Works in the same way as bm_virt_to_phys. */ +extern int bm_virt_to_bus( void * virt_addr, unsigned long length, + unsigned long * barray ); + +#ifdef __cplusplus +} +#endif + +#endif |