[Linux-kernel-mentees] [PATCH] cec-follower: create analog channel frequencies

[Jiunn Chang]

This frequency table will allow proper testing of tuner control.  There
are three frequencies per analog broadcast type and broadcast system, so
tuner increment and decrement can be tested.

Signed-off-by: Jiunn Chang <c0d1n61at3 at gmail.com>
---
 utils/cec-follower/cec-tuner.cpp | 77 ++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
index 5e794d71..e0d58e6c 100644
--- a/utils/cec-follower/cec-tuner.cpp
+++ b/utils/cec-follower/cec-tuner.cpp
@@ -7,6 +7,83 @@
 
 #include "cec-follower.h"
 
+/*
+ * This table contains analog television channel frequencies in KHz.  There are
+ * a total of three frequencies per analog broadcast type and broadcast system.
+ *
+ * CEC 17 and CEC Table 31 of the 1.4 specification lists the available analog
+ * broadcast types and broadcast systems.
+ *
+ * The table is indexed by [ana_bcast_type][bcast_system][i].
+ *
+ */
+static unsigned int analog_freqs_khz[3][9][3] =
+{
+	// cable
+	{
+		// pal-bg
+		{471250, 479250, 487250},
+		// secam-lq
+		{615250, 623250, 631250},
+		// pal-m
+		{501250, 507250, 513250},
+		// ntsc-m
+		{519250, 525250, 531250},
+		// pal-i
+		{45750, 53750, 61750},
+		// secam-dk
+		{759250, 767250, 775250},
+		// secam-bg
+		{495250, 503250, 511250},
+		// secam-l
+		{639250, 647250, 655250},
+		// pal-dk
+		{783250, 791250, 799250}
+	},
+	// satellite
+	{
+		// pal-bg
+		{519250, 527250, 535250},
+		// secam-lq
+		{663250, 671250, 679250},
+		// pal-m
+		{537250, 543250, 549250},
+		// ntsc-m
+		{555250, 561250, 567250},
+		// pal-i
+		{175250, 183250, 191250},
+		// secam-dk
+		{807250, 815250, 823250},
+		// secam-bg
+		{543250, 551250, 559250},
+		// secam-l
+		{687250, 695250, 703250},
+		// pal-dk
+		{831250, 839250, 847250}
+	},
+	// terrestrial
+	{
+		// pal-bg
+		{567250, 575250, 583250},
+		// secam-lq
+		{711250, 719250, 727250},
+		// pal-m
+		{573250, 579250, 585250},
+		// ntsc-m
+		{591250, 597250, 603250},
+		// pal-i
+		{199250, 207250, 215250},
+		// secam-dk
+		{145250, 153250, 161250},
+		// secam-bg
+		{591250, 599250, 607250},
+		// secam-l
+		{735250, 743250, 751250},
+		// pal-dk
+		{169250, 177250, 185250}
+	}
+};
+
 void process_tuner_record_timer_msgs(struct node *node, struct cec_msg &msg, unsigned me)
 {
 	switch (msg.msg[1]) {
-- 
2.23.0