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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2012-07-05 00:36:55 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-07-06 21:54:43 +0400
commit9e23f50a762c236049b4965a42d86d55fcdbbfb3 (patch)
tree1e98cb690824382058e222e9fed4261f3552549d /drivers/media/dvb/ngene
parent22a09b439af25fefbe0ebd1c6c2a0d81e923f2f5 (diff)
downloadlinux-9e23f50a762c236049b4965a42d86d55fcdbbfb3.tar.xz
[media] drxk: Make the QAM demodulator command parameters configurable
Currently there are two different implementations (in the firmware) for the QAM demodulator command: one takes 4 and the other takes 2 parameters. The driver shows an error in dmesg When using the 4-parameter command with firmware that implements the 2-parameter command. Unfortunately this happens every time when chaning the frequency (on DVB-C). This patch simply makes configurable, how many command parameters will be used. All existing drxk_config instances using the "drxk_a3.mc" were updated because this firmware is the only loadable firmware where the QAM demodulator command takes 4 parameters. Some firmwares in the ROM might also use it. The drxk instances in the em28xx-dvb driver were also updated to silence the warnings. If no qam_demod_parameter_count is given in the drxk_config struct, then the correct number of parameters will be auto-detected. [mchehab@redhat.com: Fix a small CodingStyle issue at one comment] Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/ngene')
-rw-r--r--drivers/media/dvb/ngene/ngene-cards.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c
index 7539a5d71029..72ee8de02260 100644
--- a/drivers/media/dvb/ngene/ngene-cards.c
+++ b/drivers/media/dvb/ngene/ngene-cards.c
@@ -217,6 +217,7 @@ static int demod_attach_drxk(struct ngene_channel *chan,
memset(&config, 0, sizeof(config));
config.microcode_name = "drxk_a3.mc";
+ config.qam_demod_parameter_count = 4;
config.adr = 0x29 + (chan->number ^ 2);
chan->fe = dvb_attach(drxk_attach, &config, i2c);