diff options
| author | Eric Anholt <eric@anholt.net> | 2006-11-08 19:53:31 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2006-11-08 19:53:31 -0800 |
| commit | ff77e9d84f2037b99a8e4ac55da0b0ac92ed6b9b (patch) | |
| tree | 59197ec3f35fff12d58c4d5ddb867b75223220e0 /src/i830_crt.c | |
| parent | 9b267014b55f49d9362c1d432d6ba19ddd0ad95d (diff) | |
Clean up i830_crt_detect_load() a bit more.
ADPA might not have been set right in some cases (DPMS-off monitor, for
example), and a wait for vsync that the bios does was missing.
Diffstat (limited to 'src/i830_crt.c')
| -rw-r--r-- | src/i830_crt.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/src/i830_crt.c b/src/i830_crt.c index 9287a205..68006f99 100644 --- a/src/i830_crt.c +++ b/src/i830_crt.c @@ -170,7 +170,7 @@ static Bool i830_crt_detect_load(ScrnInfoPtr pScrn, I830OutputPtr output) { I830Ptr pI830 = I830PTR(pScrn); - CARD32 adpa, pipeconf, bclrpat; + CARD32 save_adpa, adpa, pipeconf, bclrpat; CARD8 st00; int pipeconf_reg, bclrpat_reg, dpll_reg; int pipe; @@ -186,17 +186,17 @@ i830_crt_detect_load(ScrnInfoPtr pScrn, I830OutputPtr output) dpll_reg = DPLL_B; } - /* Don't try this if the DPLL isn't running. */ - if (!(INREG(dpll_reg) & DPLL_VCO_ENABLE)) - return FALSE; - adpa = INREG(ADPA); + save_adpa = adpa; - /* Enable CRT output if disabled. */ - if (!(adpa & ADPA_DAC_ENABLE)) { - OUTREG(ADPA, adpa | ADPA_DAC_ENABLE | - ((pipe == 1) ? ADPA_PIPE_B_SELECT : 0)); - } + /* Enable CRT output. */ + adpa |= ADPA_DAC_ENABLE; + if (pipe == 1) + adpa |= ADPA_PIPE_B_SELECT; + else + adpa &= ~ADPA_PIPE_B_SELECT; + adpa |= ADPA_VSYNC_CNTL_ENABLE | ADPA_HSYNC_CNTL_ENABLE; + OUTREG(ADPA, adpa); /* Set the border color to purple. Maybe we should save/restore this * reg. @@ -204,6 +204,8 @@ i830_crt_detect_load(ScrnInfoPtr pScrn, I830OutputPtr output) bclrpat = INREG(bclrpat_reg); OUTREG(bclrpat_reg, 0x00500050); + i830WaitForVblank(pScrn); + /* Force the border color through the active region */ pipeconf = INREG(pipeconf_reg); OUTREG(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER); @@ -214,7 +216,7 @@ i830_crt_detect_load(ScrnInfoPtr pScrn, I830OutputPtr output) /* Restore previous settings */ OUTREG(bclrpat_reg, bclrpat); OUTREG(pipeconf_reg, pipeconf); - OUTREG(ADPA, adpa); + OUTREG(ADPA, save_adpa); if (st00 & (1 << 4)) return TRUE; |