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added TVencoder activation code for mode asked for by user (if supported). Currently a testimage (vertical colorbars) will be displayed on the TVset if a TVmode is selected, while VGA keeps working normally. Singlehead cards only for now, dualhead don't execute this yet. Warning: not yet actually tested (in this driver ;-) 

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14291 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2005-10-01 19:28:19 +00:00
parent 87fd7c1b16
commit efe9c7a607
1 changed files with 65 additions and 10 deletions
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75
src/add-ons/accelerants/nvidia/engine/nv_brooktreetv.c
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@ -874,7 +874,7 @@ static uint8 BT_init_NTSC640_OS()
return stat;
}//end BT_init_NTSC640_OS.
static uint8 BT_testsignal (void)
static uint8 BT_testsignal(void)
{
uint8 stat;
@ -1091,9 +1091,11 @@ static uint8 BT_setup_hphase(uint8 mode)
static uint8 BT_read_monstat(uint8* monstat)
{
uint8 stat;
uint8 buffer[3];
/* make sure we have the recommended failsafe selected */
*monstat = 0;
LOG(4,("Brooktree: Autodetecting connected output devices\n"));
/* set BT to return connection status in ESTATUS on next read CMD: */
@ -1312,7 +1314,9 @@ uint8 BT_check_tvmode(display_mode target)
status_t BT_setmode(display_mode target)
{
uint8 tvmode;
uint8 tvmode, monstat;
/* enable flickerfilter in desktop modes, disable it in video modes. */
uint8 ffilter = 0;
/* use a display_mode copy because we might tune it for TVout compatibility */
display_mode tv_target = target;
@ -1328,42 +1332,93 @@ if (si->ps.secondary_head)
return B_ERROR;
}
/* fixme: reset BT should be here...
* (but: beware of the 'locked SDA' syndrome then!) */
BT_killclk_blackout();
/* read current output devices connection status */
BT_read_monstat(&monstat);
//fixme?
//'slowdown RIVA clock' if TVout is requested:
//makes sure TVout chip is not being overclocked! (VESA640/800 is safe..)
//NOTE: it looks like this is unnesessary after all..
/* (pre)set TV mode */
/* note:
* Manual config is non-dependent of the state of the PAL hardware input pin;
* Also SDA lockups occur when setting EN_XCLK after autoconfig!
* Make sure PAL_MD=0 for NTSC and PAL_MD = 1 for PAL... */
switch (tvmode)
{
case NTSC640:
case NTSC640_TST:
ffilter = 1;
BT_init_NTSC640();
break;
case NTSC800:
ffilter = 1;
BT_init_NTSC800();
break;
case PAL640:
ffilter = 1;
BT_init_PAL640();
break;
case PAL800:
case PAL800_TST:
ffilter = 1;
BT_init_PAL800();
break;
case NTSC640_OS:
BT_init_NTSC640_OS();
break;
case PAL800_OS:
BT_init_PAL800_OS();
break;
case NTSC720:
BT_init_NTSC720();
break;
case PAL720:
BT_init_PAL720();
break;
}
/* tune new TVout mode */
/* modify BT Hphase signal to center TV image... */
BT_setup_hphase(tvmode);
/* set flickerfilter */
/* disable Macro mode */
switch (tvmode)
{
case NTSC640:
case NTSC640_TST:
case NTSC800:
case NTSC640_OS:
case NTSC720:
/* NTSC */
BT_set_macro (0, 0);
break;
default:
/* PAL */
BT_set_macro (1, 0);
break;
}
/* output: SVideo/Composite */
/* setup output signal routing and flickerfilter */
//fixme: add output force settings in nv.settings, defaulting to autodetect.
BT_setup_output(monstat, 0, ffilter);
/* calculate vertical sync point */
//tmp: enabling testimage...
BT_testsignal();
/* program new TVout mode */
//fixme: add custom fixed modelines here that will be pgm'd into the CRTC...
/* setup CRTC timing */
/* setup GPU CRTC timing */
head1_set_timing(tv_target);
/* start whole thing if needed */
//fixme: set GPU CRTC to slave mode...
//fixme: add code to disable VGA screen when TVout enabled
//(use via nv.setting preset)
return B_OK;
}