diff options
Diffstat (limited to 'src/radeon_bios.c')
| -rw-r--r-- | src/radeon_bios.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/radeon_bios.c b/src/radeon_bios.c index f928eb4e..829a641e 100644 --- a/src/radeon_bios.c +++ b/src/radeon_bios.c @@ -595,6 +595,58 @@ Bool RADEONGetClockInfoFromBIOS (ScrnInfoPtr pScrn) return TRUE; } +Bool RADEONGetDAC2InfoFromBIOS (xf86OutputPtr output) +{ + ScrnInfoPtr pScrn = output->scrn; + RADEONInfoPtr info = RADEONPTR(pScrn); + RADEONOutputPrivatePtr radeon_output = output->driver_private; + int offset, rev, bg, dac; + + if (!info->VBIOS) return FALSE; + + if (info->IsAtomBios) { + /* not implemented yet */ + return FALSE; + } else { + /* first check TV table */ + offset = RADEON_BIOS16(info->ROMHeaderStart + 0x32); + if (offset) { + rev = RADEON_BIOS8(offset + 0x3); + if (rev > 1) { + bg = RADEON_BIOS8(offset + 0xc) & 0xf; + dac = (RADEON_BIOS8(offset + 0xc) >> 4) & 0xf; + radeon_output->ps2_tvdac_adj = (bg << 16) | (dac << 20); + + bg = RADEON_BIOS8(offset + 0xd) & 0xf; + dac = (RADEON_BIOS8(offset + 0xd) >> 4) & 0xf; + radeon_output->pal_tvdac_adj = (bg << 16) | (dac << 20); + + bg = RADEON_BIOS8(offset + 0xe) & 0xf; + dac = (RADEON_BIOS8(offset + 0xe) >> 4) & 0xf; + radeon_output->ntsc_tvdac_adj = (bg << 16) | (dac << 20); + + return TRUE; + } + } + /* then check CRT table */ + offset = RADEON_BIOS16(info->ROMHeaderStart + 0x60); + if (offset) { + rev = RADEON_BIOS8(offset) & 0x3; + if (rev < 2) { + bg = RADEON_BIOS8(offset + 0x3) & 0xf; + dac = (RADEON_BIOS8(offset + 0x3) >> 4) & 0xf; + radeon_output->ps2_tvdac_adj = (bg << 16) | (dac << 20); + radeon_output->pal_tvdac_adj = radeon_output->ps2_tvdac_adj; + radeon_output->ntsc_tvdac_adj = radeon_output->ps2_tvdac_adj; + + return TRUE; + } + } + } + + return FALSE; +} + Bool RADEONGetLVDSInfoFromBIOS (xf86OutputPtr output) { ScrnInfoPtr pScrn = output->scrn; |