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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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This commit is contained in:
borti4938 2016-04-10 20:39:46 +02:00
parent ff0c3494f3
commit 2b644e89e5
1 changed files with 9 additions and 7 deletions
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16
software/sys_controller/tvp7002/tvp7002.c Normal file → Executable file
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@ -97,14 +97,7 @@ 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) {
@ -320,6 +313,15 @@ void tvp_source_setup(alt_8 modeid, video_type type, alt_u32 vlines, alt_u8 hz,
tvp_set_clamp_position(type);
tvp_set_alc(type);
//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);
// Macrovision enable/disable, coast disable for RGBHV.
// Coast needs to be enabled when HSYNC is missing during VSYNC. Valid only for RGBHV?
// Macrovision should be enabled when serration pulses etc. present, so disable only for RGBHV.