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authorTrent Piepho <xyzzy@speakeasy.org>2007-07-31 23:06:50 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-10-09 22:04:30 -0300
commit19dc74b7c5f02ada19840a85582f42f4dddcdb3e (patch)
tree93e8d1b03ce88d03e37a65f5aaa4eb76423363e8
parentbfd7beacff2b5c811badb587a74c3dfbf7f98721 (diff)
V4L/DVB (5975): cx88: Wrong values used for HD-3000 radio mode
After some tedious work with a logic probe and a magnifying glass, I've determined that GPIO 7 is used to switch between the DTT7612's Sound 4.5 MHz IF output on pin 12 and the FM 10.7MHz If output on pin 11. GPIO 2 is used to switch the card's analog sound output from from the analog input connector to the CX23883's audio DACs. So, in radio mode GPIO2 = 1 and GPIO7 = 0. Add some comments about how the HD-3000's GPIOs are connected. Delete the vmux setting for the radio, as vmux doesn't apply to radio mode. Also delete the lines setting unused gpio words to zero; it's not necessary as 0 is the default value for uninitialized fields. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/video/cx88/cx88-cards.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index 6a136ddbccf8..1fc71a78b926 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -575,35 +575,34 @@ struct cx88_board cx88_boards[] = {
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
.tda9887_conf = TDA9887_PRESENT,
+ /* GPIO[2] = audio source for analog audio out connector
+ * 0 = analog audio input connector
+ * 1 = CX88 audio DACs
+ *
+ * GPIO[7] = input to CX88's audio/chroma ADC
+ * 0 = FM 10.7 MHz IF
+ * 1 = Sound 4.5 MHz IF
+ *
+ * GPIO[1,5,6] = Oren 51132 pins 27,35,28 respectively
+ *
+ * GPIO[16] = Remote control input
+ */
.input = {{
.type = CX88_VMUX_TELEVISION,
.vmux = 0,
.gpio0 = 0x00008484,
- .gpio1 = 0x00000000,
- .gpio2 = 0x00000000,
- .gpio3 = 0x00000000,
},{
.type = CX88_VMUX_COMPOSITE1,
.vmux = 1,
.gpio0 = 0x00008400,
- .gpio1 = 0x00000000,
- .gpio2 = 0x00000000,
- .gpio3 = 0x00000000,
},{
.type = CX88_VMUX_SVIDEO,
.vmux = 2,
.gpio0 = 0x00008400,
- .gpio1 = 0x00000000,
- .gpio2 = 0x00000000,
- .gpio3 = 0x00000000,
}},
.radio = {
.type = CX88_RADIO,
- .vmux = 2,
- .gpio0 = 0x00008400,
- .gpio1 = 0x00000000,
- .gpio2 = 0x00000000,
- .gpio3 = 0x00000000,
+ .gpio0 = 0x00008404,
},
.mpeg = CX88_MPEG_DVB,
},