- 05 Mar, 2014 26 commits
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Antti Palosaari authored
Modern silicon RF tuners used nowadays has many controllable gain stages on signal path. Usually, but not always, there is at least 3 gain stages. Also on some cases there could be multiple gain stages within the ones specified here. However, I think that having these three controllable gain stages offers enough fine-tuning for real use cases. 1) LNA gain. That is first gain just after antenna input. 2) Mixer gain. It is located quite middle of the signal path, where RF signal is down-converted to IF/BB. 3) IF gain. That is last gain in order to adjust output signal level to optimal level for receiving party (usually demodulator ADC). Each gain stage could be set rather often both manual or automatic (AGC) mode. Due to that add separate controls for controlling operation mode. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add documentation for LNA, mixer and IF gain controls. These controls are RF tuner specific. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
It is class for RF tuner specific controls, like gain controls, filters, signal strength. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Delay possible I2C gate close a little bit in order to see if there is next message coming to tuner in a sequence. Also, export private muxed I2C adapter. That is aimed only for SDR extension module as SDR belongs to same RTL2832 physical I2C bus (it is physically property of RTL2832, whilst it is own kernel module). Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Luis Alves authored
Signed-off-by: Luis Alves <ljalvs@gmail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
There was a deadlock between master I2C adapter and muxed I2C adapter. Implement two I2C muxed I2C adapters and leave master alone, just only for offering I2C adapter for these mux adapters. Reported-by: Luis Alves <ljalvs@gmail.com> Reported-by: Benjamin Larsson <benjamin@southpole.se> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
RTL2832 provides gated / repeater I2C adapter for tuner. Implement it as a muxed I2C adapter. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Most of those were reported by checkpatch.pl... debug module parameter is not used anywhere so remove it. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
All used tuners has get_if_frequency() callback and that parameter is not needed and will not needed as all upcoming tuner drivers should implement get_if_frequency(). Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Disable IR interrupts in order to avoid SDR sample loss. IR interrupts causes some extra load for device and it seems be one reason to loss samples when sampling rate is high. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
There is now new tuner types which are not handled on that switch-case. Print error if unknown tuner type is meet. drivers/media/tuners/tuner-xc2028.c: In function ‘generic_set_freq’: drivers/media/tuners/tuner-xc2028.c:1037:2: warning: enumeration value ‘V4L2_TUNER_ADC’ not handled in switch [-Wswitch] switch (new_type) { ^ drivers/media/tuners/tuner-xc2028.c:1037:2: warning: enumeration value ‘V4L2_TUNER_RF’ not handled in switch [-Wswitch] Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Some previous patch introduced this bug: /devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : attributes construct error <row id=""v4l2-mpeg-video-hor-search-range"> ^ /devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : Couldn't find end of Start Tag row line 2262 <row id=""v4l2-mpeg-video-hor-search-range"> ^ Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Add SDR to V3.15 revlist, and add the credits to Antti. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add SDR device type to v4l2-framework.txt document. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Let it be experimental still as all SDR drivers are in staging. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Document V4L2 SDR interface. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Update documentation to reflect 1 Hz frequency step flag. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Hans Verkuil authored
Modulator ioctls could be enabled mistakenly for non-radio devices. Currently those ioctls are only valid for radio. Fix it. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
VIDIOC_QUERYCAP IOCTL is used to query device capabilities. Add new capability flag to inform given device supports SDR capture. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Enable stream format (FMT) IOCTLs for SDR use. These are used for negotiate used data stream format. Reorganise some some IOCTL selection logic. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Use own format ops for SDR data: vidioc_enum_fmt_sdr_cap vidioc_g_fmt_sdr_cap vidioc_s_fmt_sdr_cap vidioc_try_fmt_sdr_cap Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add new V4L2 stream format definition, V4L2_BUF_TYPE_SDR_CAPTURE, for SDR receiver. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add V4L2_TUNER_CAP_1HZ for 1 Hz resolution. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Define tuner types V4L2_TUNER_ADC and V4L2_TUNER_RF for SDR usage. ADC is used for setting sampling rate (sampling frequency) to SDR device. Another tuner type, named as V4L2_TUNER_RF, is possible RF tuner. Is is used to down-convert RF frequency to range ADC could sample. Having RF tuner is optional, whilst in practice it is almost always there. Also add checks to VIDIOC_G_FREQUENCY, VIDIOC_S_FREQUENCY and VIDIOC_ENUM_FREQ_BANDS only allow these two tuner types when device type is SDR (VFL_TYPE_SDR). For VIDIOC_G_FREQUENCY we do not check tuner type, instead override type with V4L2_TUNER_ADC in every case (requested by Hans in order to keep functionality in line with existing tuners and existing API does not specify it). Prohibit VIDIOC_S_HW_FREQ_SEEK explicitly when device type is SDR, as device cannot do hardware seek without a hardware demodulator. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add new V4L device type VFL_TYPE_SDR for Software Defined Radio. It is registered as /dev/swradio0 (/dev/sdr0 was already reserved). Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Antti Palosaari authored
Add new video4linux device named /dev/swradio for Software Defined Radio use. V4L device minor numbers are allocated dynamically nowadays, but there is still configuration option for old fixed style. Add note to mention that configuration option too. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Alan Cox <alan@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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- 04 Mar, 2014 14 commits
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Mauro Carvalho Chehab authored
This device has a led at bit 7 of GPIO reg. 0x80 to indicate when a DVB capture is happening. Add support for it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Some devices have a LED to indicate when DVB capture started. Add support for it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
This device is close to Kworld UB435-Q, but it uses a different tuner. Add support for it. Tested with both 8VSB and 256QAM modulations. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
tda18272 is programmed just like tda18212, but it also supports ClearQAM and ATSC. Add support for them. Tested with a Kworld UB435-Q on both 8VSB and 256QAM modes. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Some boards got added there. Update the cardlist to reflect the current status. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Some new boards got added. Update the cardlist. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Currently, there's just one device using this frontend: PCTV 80e, and it works on serial mode. Change the default here to serial mode. If we add more devices, then this option should be set via config structure. Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
The cfg_mpeg_output has more fields than what it is initialized when the code is called. Be sure to initialize everything before use, in order to avoid random behaviors. Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Just like the windows driver, disable OOB after setting the driver version. Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Shuah Khan authored
DJH_DEBUG only code path in drxbsp_i2c_write_read() dereferences w_dev_addr and subsequently w_dev_addr->user_data->i2c which results in failure during boot. This patch fixes the null pointer derefence bug as well as the following compile errors: LD arch/x86/built-in.o CC drivers/media/dvb-frontends/drx39xyj/drxj.o drivers/media/dvb-frontends/drx39xyj/drxj.c: In function ‘drxbsp_i2c_write_read’: drivers/media/dvb-frontends/drx39xyj/drxj.c:1558:25: error: redeclaration of ‘state’ with no linkage struct drx39xxj_state *state = w_dev_addr->user_data; ^ drivers/media/dvb-frontends/drx39xyj/drxj.c:1512:25: note: previous declaration of ‘state’ was here struct drx39xxj_state *state; ^ drivers/media/dvb-frontends/drx39xyj/drxj.c:1558:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] struct drx39xxj_state *state = w_dev_addr->user_data; ^ drivers/media/dvb-frontends/drx39xyj/drxj.c:1560:17: error: redeclaration of ‘msg’ with no linkage struct i2c_msg msg[2] = { ^ drivers/media/dvb-frontends/drx39xyj/drxj.c:1513:17: note: previous declaration of ‘msg’ was here struct i2c_msg msg[2]; ^ Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Shuah Khan authored
drxbsp_i2c_write_read() has return that prevents DJH_DEBUG code to run. Remove it. Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Shuah Khan authored
drxj.c fails to compile with the following errors when DJH_DEBUG is defined. drivers/media/dvb-frontends/drx39xyj/drxj.c:1567:2: error: implicit declaration of function ‘pr_dbg’ [-Werror=implicit-function-declaration] pr_dbg("drx3933 i2c operation addr=%x i2c=%p, wc=%x rc=%x\n", ^ Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
Mimic what windows driver does here: it writes 0x07 to SIO_CC_SOFT_RST__A, instead of just 0x03. Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Mauro Carvalho Chehab authored
As drxj_close puts the device in powerdown, we need to power it up properly at drxj_open. This is the behavior noticed at the Windows driver. Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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