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/*
* This file is part of atitvout.
*
* asd is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* asd is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with atitvout; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <lrmi.h>
#include <stdio.h>
#include "ati.h"
#include "mach64.h"
#include "vbecall.h"
int mach64_detect_attached_displays(unsigned *tv) {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa083;
r.ecx = 0x0700;
if (vbe_call(&r) != 0)
return -1;
if (tv)
*tv = r.ecx >> 4 & 3;
return ((r.ecx & 3) ? ATI_DISPLAY_CRT : 0) | ((r.ecx >> 4 & 3) ? ATI_DISPLAY_TV : 0) | ((r.ecx & 4) ? ATI_DISPLAY_LCD : 0);
}
int mach64_get_active_displays() {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa084;
r.ebx = 0x0000;
if (vbe_call(&r) != 0)
return -1;
return r.ebx & 7;
}
int mach64_set_active_displays(int v) {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa084;
r.ebx = 0x0100;
r.ecx = v & 7;
if (vbe_call(&r) != 0)
return -1;
return 0;
}
int mach64_get_tvout_config(unsigned *rev, int *freq) {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa070;
r.ebx = 0x0000;
if (vbe_call(&r) != 0)
return -1;
if ((r.ebx & 0xFFFF) == 0)
return (r.edx & 0xFFFF) == 0 ? ATI_TVOUT_NOTDETECTED : ATI_TVOUT_NOTSUPPORTED;
if ((r.ecx & 0xFF)== 0)
return ATI_TVOUT_DISABLED;
if (rev)
*rev = (r.edx >> 8) & 0xff;
if (freq)
*freq = (r.ecx >> 8) & 0xff;
return ATI_TVOUT_ENABLED;
}
int mach64_get_tvout_standard() {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa071;
r.ebx = 0x0000;
if (vbe_call(&r) != 0)
return -1;
return r.ecx & 0x00ff;
}
int mach64_set_tvout_standard(int v) {
struct LRMI_regs r;
memset(&r, 0, sizeof(r));
r.eax = 0xa070;
r.ebx = 0x0003;
r.ecx = v & 0xFF;
if (vbe_call(&r) != 0)
return -1;
return r.ecx & 0x00ff;
}
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