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authorOlivier Grenie <olivier.grenie@parrot.com>2012-12-31 09:51:17 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-04-22 17:15:52 -0300
commit59501bb792c66b85fb7fdbd740e788e3afc70bbd (patch)
treebaaa9748eae12db1d6012628e35116596f3df93a /drivers/media/usb
parentf45f513a9325b52a5f3e26ee8d15471e8b692947 (diff)
[media] dib7090p: improve the support of the dib7090 and dib7790
The intend of this patch is to improve the support of the dib7090 and dib7790. The AGC1 min value is set to 32768 by default. The actual AGC1 min and the external attenuation are controled depending on the received RF level. Signed-off-by: Olivier Grenie <olivier.grenie@parrot.com> Signed-off-by: Patrick Boettcher <patrick.boettcher@parrot.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb')
-rw-r--r--drivers/media/usb/dvb-usb/dib0700_devices.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/media/usb/dvb-usb/dib0700_devices.c b/drivers/media/usb/dvb-usb/dib0700_devices.c
index d8077f15e536..f08136052f9c 100644
--- a/drivers/media/usb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/usb/dvb-usb/dib0700_devices.c
@@ -2541,7 +2541,7 @@ static struct dibx000_agc_config dib7090_agc_config[2] = {
.wbd_alpha = 5,
.agc1_max = 65535,
- .agc1_min = 0,
+ .agc1_min = 32768,
.agc2_max = 65535,
.agc2_min = 0,
@@ -2618,7 +2618,7 @@ static struct dib7000p_config nim7090_dib7000p_config = {
.output_mpeg2_in_188_bytes = 1,
.hostbus_diversity = 1,
.tuner_is_baseband = 1,
- .update_lna = NULL,
+ .update_lna = tfe7790p_update_lna, /* GPIO used is the same as TFE7790 */
.agc_config_count = 2,
.agc = dib7090_agc_config,
@@ -2642,12 +2642,26 @@ static struct dib7000p_config nim7090_dib7000p_config = {
.enMpegOutput = 1,
};
+static int tfe7090p_pvr_update_lna(struct dvb_frontend *fe, u16 agc_global)
+{
+ deb_info("TFE7090P-PVR update LNA: agc global=%i", agc_global);
+ if (agc_global < 25000) {
+ dib7000p_set_gpio(fe, 5, 0, 0);
+ dib7000p_set_agc1_min(fe, 0);
+ } else {
+ dib7000p_set_gpio(fe, 5, 0, 1);
+ dib7000p_set_agc1_min(fe, 32768);
+ }
+
+ return 0;
+}
+
static struct dib7000p_config tfe7090pvr_dib7000p_config[2] = {
{
.output_mpeg2_in_188_bytes = 1,
.hostbus_diversity = 1,
.tuner_is_baseband = 1,
- .update_lna = NULL,
+ .update_lna = tfe7090p_pvr_update_lna,
.agc_config_count = 2,
.agc = dib7090_agc_config,
@@ -2674,7 +2688,7 @@ static struct dib7000p_config tfe7090pvr_dib7000p_config[2] = {
.output_mpeg2_in_188_bytes = 1,
.hostbus_diversity = 1,
.tuner_is_baseband = 1,
- .update_lna = NULL,
+ .update_lna = tfe7090p_pvr_update_lna,
.agc_config_count = 2,
.agc = dib7090_agc_config,

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