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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2408 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-10-23 07:05:05 +00:00
parent a3c85f88ff
commit bb8c4bcf87
1 changed files with 58 additions and 10 deletions
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68
linux/vbelib.c
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@ -13,6 +13,7 @@
#include <string.h>
#include <stdio.h>
#include <sys/io.h>
#include <ctype.h>
static struct VesaProtModeInterface vbe_pm_info;
@ -54,17 +55,19 @@ static inline int VBE_LRMI_int(int int_no, struct LRMI_regs *r)
#define VBE_LRMI_int(int_no,regs) (VBE_LRMI_int(int_no,regs))
#endif
static unsigned hh_int_10_seg;
int vbeInit( void )
{
unsigned short iopl_port,int_10_seg;
unsigned short iopl_port;
size_t i;
if(!LRMI_init()) return VBE_VM86_FAIL;
/*
Allow read/write to ALL io ports
*/
int_10_seg = *(unsigned short *)PhysToVirtSO(0x0000,0x0042);
hh_int_10_seg = *(unsigned short *)PhysToVirtSO(0x0000,0x0042);
/* Video BIOS should be at C000:0000 and above */
if((int_10_seg >> 12) < 0xC) return VBE_BROKEN_BIOS;
hh_int_10_seg >>= 12;
if(hh_int_10_seg < 0xC) return VBE_BROKEN_BIOS;
ioperm(0, 1024, 1);
iopl(3);
memset(&vbe_pm_info,0,sizeof(struct VesaProtModeInterface));
@ -77,6 +80,26 @@ int vbeInit( void )
int vbeDestroy( void ) { return VBE_OK; }
static void print_str(unsigned char *str)
{
size_t i;
fflush(stdout);
printf("vbelib: ");
for(i = 0;i < 256;i++) { printf("%02X(%c) ",str[i],isprint(str[i])?str[i]:'.'); if(!str[i]) break; }
printf("\n");
fflush(stdout);
}
static void print_wrd(unsigned short *str)
{
size_t i;
fflush(stdout);
printf("vbelib: ");
for(i = 0;i < 256;i++) { printf("%04X ",str[i]); if(str[i] == 0xffff) break; }
printf("\n");
fflush(stdout);
}
int vbeGetControllerInfo(struct VbeInfoBlock *data)
{
struct LRMI_regs r;
@ -103,31 +126,51 @@ int vbeGetControllerInfo(struct VbeInfoBlock *data)
fpdata.off = (unsigned long)(data->OemStringPtr) & 0xffff;
data->OemStringPtr = PhysToVirt(fpdata);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: OemStringPtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemStringPtr);
if(verbose > 1)
{
printf("vbelib: OemStringPtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemStringPtr);
print_str(data->OemStringPtr);
}
#endif
fpdata.seg = (unsigned long)(data->VideoModePtr) >> 16;
fpdata.off = (unsigned long)(data->VideoModePtr) & 0xffff;
data->VideoModePtr = PhysToVirt(fpdata);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: VideoModePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->VideoModePtr);
if(verbose > 1)
{
printf("vbelib: VideoModePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->VideoModePtr);
print_wrd(data->VideoModePtr);
}
#endif
fpdata.seg = (unsigned long)(data->OemVendorNamePtr) >> 16;
fpdata.off = (unsigned long)(data->OemVendorNamePtr) & 0xffff;
data->OemVendorNamePtr = PhysToVirt(fpdata);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: OemVendorNamePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemVendorNamePtr);
if(verbose > 1)
{
printf("vbelib: OemVendorNamePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemVendorNamePtr);
print_str(data->OemVendorNamePtr);
}
#endif
fpdata.seg = (unsigned long)(data->OemProductNamePtr) >> 16;
fpdata.off = (unsigned long)(data->OemProductNamePtr) & 0xffff;
data->OemProductNamePtr = PhysToVirt(fpdata);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: OemProductNamePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemProductNamePtr);
if(verbose > 1)
{
printf("vbelib: OemProductNamePtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemProductNamePtr);
print_str(data->OemProductNamePtr);
}
#endif
fpdata.seg = (unsigned long)(data->OemProductRevPtr) >> 16;
fpdata.off = (unsigned long)(data->OemProductRevPtr) & 0xffff;
data->OemProductRevPtr = PhysToVirt(fpdata);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: OemProductRevPtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemProductRevPtr);
if(verbose > 1)
{
printf("vbelib: OemProductRevPtr=%04X:%04X => %p\n",fpdata.seg,fpdata.off,data->OemProductRevPtr);
print_str(data->OemProductRevPtr);
}
#endif
}
return retval;
@ -316,7 +359,9 @@ int vbeGetProtModeInfo(struct VesaProtModeInterface *pm_info)
retval = r.eax & 0xffff;
if(retval == 0x4f)
{
retval = VBE_OK;
info_offset = r.edi&0xffff;
if((r.es >> 12) != hh_int_10_seg) retval = VBE_BROKEN_BIOS;
rm_info = PhysToVirtSO(r.es,info_offset);
pm_info->SetWindowCall = PhysToVirtSO(r.es,info_offset+rm_info->SetWindowCall);
#ifdef HAVE_VERBOSE_VAR
@ -332,9 +377,12 @@ int vbeGetProtModeInfo(struct VesaProtModeInterface *pm_info)
#endif
pm_info->iopl_ports = PhysToVirtSO(r.es,info_offset+rm_info->iopl_ports);
#ifdef HAVE_VERBOSE_VAR
if(verbose > 1) printf("vbelib: iopl_ports=%04X:%04X => %p\n",r.es,info_offset+rm_info->iopl_ports,pm_info->iopl_ports);
if(verbose > 1)
{
printf("vbelib: iopl_ports=%04X:%04X => %p\n",r.es,info_offset+rm_info->iopl_ports,pm_info->iopl_ports);
print_wrd(pm_info->iopl_ports);
}
#endif
retval = VBE_OK;
}
return retval;
}