kernel/drivers/media/usb/dvb-usb-v2, branch linux-4.3.y

[media] rtl28xxu: fix control message flaws

2015-10-22T17:48:27Z

Add lock to prevent concurrent access for control message as control message function uses shared buffer. Without the lock there may be remote control polling which messes the buffer causing IO errors. Increase buffer size and add check for maximum supported message length. Link: https://bugzilla.kernel.org/show_bug.cgi?id=103391 Fixes: c56222a6b25c ("[media] rtl28xxu: move usb buffers to state") Cc: # 4.0+ Signed-off-by: Antti Palosaari

[media] lmedm04: NEC scancode cleanup

2015-07-06T11:26:15Z

This changes the keymap back to the state before commit 616a4b83 and changes the driver to use full NEC32 scancodes following the instructions provided by Malcolm Priestley . Signed-off-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab

[media] lmedm04: fix the range for relative measurements

2015-06-24T11:38:30Z

Relative measurements are typically between 0 and 0xffff. However, for some tuners (TUNER_S7395 and TUNER_S0194), the range were from 0 to 0xff00, with means that 100% is never archived. Also, TUNER_RS2000 uses a more complex math. So, create a macro that does the conversion using bit operations and use it for all conversions. The code is also easier to read with is a bonus. While here, remove a bogus comment. Signed-off-by: Mauro Carvalho Chehab

[media] lmedm04: use u32 instead of u64 for relative stats

2015-06-24T11:38:30Z

Cleanup this sparse warning: drivers/media/usb/dvb-usb-v2/lmedm04.c:302 lme2510_update_stats() warn: should '((255 - st->signal_sn - 161) * 3) << 8' be a 64 bit type? Both c_tmp and s_tmp actually stores a u16 stat. Using a u64 data there is a waste, specially on u32 archs, as 64 ints there are more expensive. So, change the types to u32 and do the typecast only when storing the result. Signed-off-by: Mauro Carvalho Chehab

[media] lmedm04: implement dvb v5 statistics

2015-06-10T15:37:54Z

Indroduce function lme2510_update_stats to update statistics directly from usb interrupt. Provide signal and snr wrap rounds for dvb v3 functions. Block and post bit are not available. When i2c_talk_onoff is on no statistics are available, with possible future hand over to the relevant frontend/tuner. Signed-off-by: Malcolm Priestley Signed-off-by: Mauro Carvalho Chehab

[media] lmedm04: Enable dont_poll for TS2020 tuner

2015-06-10T14:12:42Z

Following a change made to TS2020 tuner in patches ts2020: Provide DVBv5 API signal strength ts2020: Allow stats polling to be suppressed Polling on the driver must be suppressed because the demuxer is stopped by I2C messages. Signed-off-by: Malcolm Priestley Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab

[media] TS2020: Calculate tuner gain correctly

2015-06-10T14:10:27Z

The TS2020 and TS2022 tuners take an input from the demodulator indicating the AGC setting on that component that is then used to influence the tuner's own gain. This should be taken into account when calculating the gain and signal strength. Further, the existing TS2020 driver miscalculates the signal strength as the result of its calculations can exceed the storage capacity of the 16-bit word used to return it to userspace. To this end: (1) Add a callback function (->get_agc_pwm()) in the ts2020_config struct that the tuner can call to get the AGC PWM value from the demodulator. (2) Modify the TS2020 driver to calculate the gain according to Montage's specification with the adjustment that we produce a negative value and scale it to 0.001dB units (which is what the DVBv5 API will require): (a) Callback to the demodulator to retrieve the AGC PWM value and then turn that into Vagc for incorporation in the calculations. If the callback is unset, assume a Vagc of 0. (b) Calculate the tuner gain from a combination of Vagc and the tuner's RF gain and baseband gain settings. (3) Turn this into a percentage signal strength as per Montage's specification for return to userspace with the DVBv3 API. (4) Provide a function in the M88DS3103 demodulator driver that can be used to get the AGC PWM value on behalf of the tuner. (5) The ts2020_config.get_agc_pwm function should be set by the code that stitches together the drivers for each card. For the DVBSky cards that use the M88DS3103 with the TS2020 or the TS2022, set the get_agc_pwm function to point to m88ds3103_get_agc_pwm. I have tested this with a DVBSky S952 card which has an M88DS3103 and a TS2022. Thanks to Montage for providing access to information about the workings of these parts. Signed-off-by: David Howells Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab

[media] dvb: Get rid of typedev usage for enums

2015-06-09T20:47:35Z

The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab Acked-by: Stefan Richter # for drivers/media/firewire/*

[media] af9035: add USB ID 07ca:0337 AVerMedia HD Volar (A867)

2015-05-30T15:08:50Z

It is AF9035 + MxL5007T. Driver reports: prechip_version=00 chip_version=03 chip_type=3802 Not sure if that USB ID is reserved only for HP brand or if it is common, but the stick I have is branded as HP part no. 580715-001 rmn A867. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab

[media] rtl28xxu: load SDR module for fc2580 based devices

2015-05-18T18:59:35Z

Load rtl2832_sdr driver for devices having fc2580 tuner. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab