lwn.git/drivers/media/dvb-core, branch v4.6-rc1

[media] dvb-core: fix return code checking for devices with CA

2016-03-03T17:33:33+00:00

The test for the return code was mistakenly inverted. This caused DVB devices with CA module to fail on modprobe. Tested with TechnoTrend CT2-4650 CI USB tuner. Signed-off-by: Olli Salonen Signed-off-by: Mauro Carvalho Chehab

[media] Add support for Avermedia AverTV Volar HD 2 (TD110)

2016-03-03T11:33:05+00:00

Signed-off-by: Philippe Valembois Reviewed-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab

[media] media: dvb-frontend invoke enable/disable_source handlers

2016-02-27T12:34:06+00:00

Change dvb frontend to check if tuner is free when device opened in RW mode. Call to enable_source handler either returns with an active pipeline to tuner or error if tuner is busy. Tuner is released when frontend is released calling the disable_source handler. Signed-off-by: Shuah Khan Signed-off-by: Mauro Carvalho Chehab

[media] dvb_frontend: Don't let drivers to trash data at cache

2016-02-04T18:27:41+00:00

GET_FRONTEND and G_PROPERTY can be called anytime, even when the tuner/demod is not fully locked. However, several parameters returned by those calls are available only after the demod get VITERBI lock. While several drivers do the right thing by checking the status before returning the parameter, some drivers simply blindly update the DTV properties cache without checking if the registers at the hardware contain valid values. Due to that, programs that call G_PROPERTY (or GET_FRONTEND) before having a tuner lock may interfere at the zigzag logic, as the DVB kthread calls the set_frontend() callback several times, to fine tune the frequency and to identify if the signal is inverted or not. While the drivers should be fixed to report the right status, we should prevent that such bugs would actually interfere at the device operation. So, let's use a separate var for userspace calls to get frontend. As we copy the content of the cache, this should not cause any troubles. Signed-off-by: Mauro Carvalho Chehab

[media] dvb_frontend: pass the props cache to get_frontend() as arg

2016-02-04T18:27:30+00:00

Instead of using the DTV properties cache directly, pass the get frontend data as an argument. For now, everything should remain the same, but the next patch will prevent get_frontend to affect the global cache. This is needed because several drivers don't care enough to only change the properties if locked. Due to that, calling G_PROPERTY before locking on those drivers will make them to never lock. Ok, those drivers are crap and should never be merged like that, but the core should not rely that the drivers would be doing the right thing. Reviewed-by: Michael Ira Krufky Signed-off-by: Mauro Carvalho Chehab

[media] dvb_frontend: add props argument to dtv_get_frontend()

2016-02-04T11:45:14+00:00

Instead of implicitly using the DTV cache properties at dtv_get_frontend(), pass it as an additional argument. This patch prepares to use a separate cache for G_PROPERTY, in order to avoid it to mangle with the DVB thread zigzag logic. Signed-off-by: Mauro Carvalho Chehab

[media] dvb_frontend: print DTV property dump also for SET_PROPERTY

2016-02-04T11:06:38+00:00

When debugging troubles with DTV properties get/set, it is important to be able to see not only the properties from get, but also the ones from set. So, improve the dumps to allow reporting both. Signed-off-by: Mauro Carvalho Chehab

[media] dvb-frontend: Use boottime

2016-02-01T15:35:29+00:00

Wall time obtained from ktime_get_real is susceptible to sudden jumps due to user setting the time or due to NTP. Boot time is constantly increasing time better suited for comparing two timestamps. [mchehab@osg.samsung.com: fix trivial merge conflicts] Signed-off-by: Abhilash Jindal Signed-off-by: Mauro Carvalho Chehab

[media] dvbdev: the space is required after ','

2016-02-01T12:25:59+00:00

The space is missing after ',', and this will be introduce much noise when checking new patch around them. Signed-off-by: Xiubo Li Signed-off-by: Mauro Carvalho Chehab

[media] dvbdev: replace kcalloc with kzalloc

2016-02-01T12:25:16+00:00

Since the number of elements equals to 1, so just use kzalloc to simplify the code and make it more readable. Signed-off-by: Xiubo Li Signed-off-by: Mauro Carvalho Chehab