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doc-update on some bits and pieces for TVout and panel use

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7344 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2004-04-29 12:40:29 +00:00
parent 511252a157
commit 8addb7c3d8
4 changed files with 32 additions and 3 deletions
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8
src/add-ons/accelerants/nvidia/engine/nv_crtc.c
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@ -447,6 +447,10 @@ status_t nv_crtc_dpms(bool display, bool h, bool v)
{
/* powerup both LVDS (laptop panellink) and TMDS (DVI panellink)
* internal transmitters... */
/* note:
* the powerbits in this register are hardwired to the DVI connectors,
* instead of to the DACs! (confirmed NV34) */
//fixme...
DACW(FP_DEBUG0, (DACR(FP_DEBUG0) & 0xcfffffff));
/* ... and powerup external TMDS transmitter if it exists */
/* (confirmed OK on NV28 and NV34) */
@ -463,6 +467,10 @@ status_t nv_crtc_dpms(bool display, bool h, bool v)
{
/* powerdown both LVDS (laptop panellink) and TMDS (DVI panellink)
* internal transmitters... */
/* note:
* the powerbits in this register are hardwired to the DVI connectors,
* instead of to the DACs! (confirmed NV34) */
//fixme...
DACW(FP_DEBUG0, (DACR(FP_DEBUG0) | 0x30000000));
/* ... and powerdown external TMDS transmitter if it exists */
/* (confirmed OK on NV28 and NV34) */

8
src/add-ons/accelerants/nvidia/engine/nv_crtc2.c
View File

@ -430,6 +430,10 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v)
{
/* powerup both LVDS (laptop panellink) and TMDS (DVI panellink)
* internal transmitters... */
/* note:
* the powerbits in this register are hardwired to the DVI connectors,
* instead of to the DACs! (confirmed NV34) */
//fixme...
DAC2W(FP_DEBUG0, (DAC2R(FP_DEBUG0) & 0xcfffffff));
/* ... and powerup external TMDS transmitter if it exists */
/* (confirmed OK on NV28 and NV34) */
@ -446,6 +450,10 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v)
{
/* powerdown both LVDS (laptop panellink) and TMDS (DVI panellink)
* internal transmitters... */
/* note:
* the powerbits in this register are hardwired to the DVI connectors,
* instead of to the DACs! (confirmed NV34) */
//fixme...
DAC2W(FP_DEBUG0, (DAC2R(FP_DEBUG0) | 0x30000000));
/* ... and powerdown external TMDS transmitter if it exists */
/* (confirmed OK on NV28 and NV34) */

9
src/add-ons/accelerants/nvidia/engine/nv_general.c
View File

@ -1028,9 +1028,12 @@ static status_t nv_general_bios_to_powergraphics()
if (si->ps.secondary_head)
{
/* switch overlay engine to CRTC1 */
/* bit 12: overlay engine,
* bit 8: TVout chip (fixme: or bit 4?),
* bit 4: DDC channel (fixme: or bit 8?) */
/* bit 17: GPU FP port #2 (confirmed NV25, NV28, confirmed not on NV34),
* bit 16: GPU FP port #1 (confirmed NV25, NV28, confirmed not on NV34),
* bit 12: overlay engine (all cards),
* bit 9: TVout chip #2 (confirmed on NV18, NV25, NV28),
* bit 8: TVout chip #1 (all cards),
* bit 4: DDC channel (all cards) */
NV_REG32(NV32_2FUNCSEL) &= ~0x00001000;
NV_REG32(NV32_FUNCSEL) |= 0x00001000;
}

10
src/add-ons/accelerants/nvidia/engine/nv_info.c
View File

@ -278,8 +278,18 @@ static void detect_panels()
CRTCW(VSYNCE ,(CRTCR(VSYNCE) & 0x7f));
LOG(2,("INFO: Dumping flatpanel related CRTC registers:\n"));
/* info LCD register:
* b7: 1 = stereo view (shutter glasses use) (all cards),
* b5: 1 = power ext. TMDS (or something)/0 = TVout use (?) (confirmed NV28),
* b4: 1 = power ext. TMDS (or something)/0 = TVout use (?) (confirmed NV34),
* b3: 1 = ??? (confirmed NV34),
* b0: 1 = panel enabled/0 = TVout enabled (all cards). */
LOG(2,("CRTC1: LCD register: $%02x\n", CRTCR(LCD)));
/* info 0x59 register:
* b0: 1 = enable ext. TMDS clock (DPMS) (confirmed NV28, NV34). */
LOG(2,("CRTC1: register $59: $%02x\n", CRTCR(0x59)));
/* info 0x9f register:
* b4: 0 = TVout use (?). */
LOG(2,("CRTC1: register $9f: $%02x\n", CRTCR(0x9f)));
/* detect active slave device (if any) */