Re: [2.6 patch] PAL-M support fix for CX88 chipsets - final version :-)

[Mauro Carvalho Chehab <mchehab@brturbo.com.br>]

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This patch fixes PAL-M chroma subcarrier frequency (FSC) to its correct 
value of 3.5756115 MHz and adjusts horizontal total samples for PAL-M, 
according with formula Line Draw Time / (4*FSC).

Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

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--- linux-2.6.12-rc3.org/drivers/media/video/cx88/cx88-core.c	2005-04-20 21:03:14.000000000 -0300
+++ linux-2.6.12-rc3/drivers/media/video/cx88/cx88-core.c	2005-05-03 14:59:21.000000000 -0300
@@ -736,6 +736,10 @@ static unsigned int inline norm_fsc8(str
 {
 	static const unsigned int ntsc = 28636360;
 	static const unsigned int pal  = 35468950;
+	static const unsigned int palm  = 28604892;
+
+	if (V4L2_STD_PAL_M & norm->id)
+		return palm;
 
 	return (norm->id & V4L2_STD_625_50) ? pal : ntsc;
 }
@@ -749,6 +753,11 @@ static unsigned int inline norm_notchfil
 
 static unsigned int inline norm_htotal(struct cx88_tvnorm *norm)
 {
+	/* Should always be Line Draw Time / (4*FSC) */
+
+	if (V4L2_STD_PAL_M  & norm->id)
+		return 909;
+
 	return (norm->id & V4L2_STD_625_50) ? 1135 : 910;
 }