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move setting RGB gain out of tvp_set_alc(): miss leading name, gains set are not part of the Automatic Level Control (ALC)

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borti4938 2016-04-10 20:39:46 +02:00 committed by marqs
parent 119d2fee15
commit c4bb809c3c
1 changed files with 9 additions and 9 deletions
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18
software/sys_controller/tvp7002/tvp7002.c Normal file → Executable file
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@ -86,15 +86,6 @@ static void tvp_set_alc(video_type type)
//tvp_writereg(TVP_ALCEN, 0x00);
//tvp_writereg(TVP_ALCEN, 0x80);
//set analog (coarse) gain to max recommended value (-> 91% of the ADC range with 0.7Vpp input)
tvp_writereg(TVP_BG_CGAIN, 0x88);
tvp_writereg(TVP_R_CGAIN, 0x08);
//set rest of the gain digitally (fine) to utilize 100% of the range at the output (0.91*(1+(26/256)) = 1)
tvp_writereg(TVP_R_FGAIN, 26);
tvp_writereg(TVP_G_FGAIN, 26);
tvp_writereg(TVP_B_FGAIN, 26);
//select ALC placement
switch (type) {
case VIDEO_LDTV:
@ -200,6 +191,15 @@ void tvp_init()
// Common sync separator threshold
// Some arcade games need more that the default 0x40
tvp_set_ssthold(DEFAULT_VSYNC_THOLD);
//set analog (coarse) gain to max recommended value (-> 91% of the ADC range with 0.7Vpp input)
tvp_writereg(TVP_BG_CGAIN, 0x88);
tvp_writereg(TVP_R_CGAIN, 0x08);
//set rest of the gain digitally (fine) to utilize 100% of the range at the output (0.91*(1+(26/256)) = 1)
tvp_writereg(TVP_R_FGAIN, 26);
tvp_writereg(TVP_G_FGAIN, 26);
tvp_writereg(TVP_B_FGAIN, 26);
}
// Configure H-PLL (sampling rate, VCO gain and charge pump current)