[media] msi3101: improve tuner synth calc step size

Allow stepless synthesizer configuration. With that change we lose
precision a little bit, as it is now between +-500Hz from the target.
It could

[media] msi3101: improve tuner synth calc step size

Allow stepless synthesizer configuration. With that change we lose
precision a little bit, as it is now between +-500Hz from the target.
It could be better but on that case calculation algorithm goes more
complex and atm there is more important things to do.
Two approach to improve which comes to my mind are:
1) select and use biggest suitable step
2) use greatest common divisor algo to find divisor for thresh & frac
when possible to avoid rounding errors, which is root of cause of
current +-500Hz inaccuracy.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: correct ADC sampling rate calc a little bit

No need to compare numbers, we could just store that fractional
value MSB directly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed

[media] msi3101: correct ADC sampling rate calc a little bit

No need to compare numbers, we could just store that fractional
value MSB directly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: add debug dump for unknown stream data

Dump all unknown 'garbage' data - maybe we will discover someday if there
is something rational...
Also fix comment in USB frame description.

[media] msi3101: add debug dump for unknown stream data

Dump all unknown 'garbage' data - maybe we will discover someday if there
is something rational...
Also fix comment in USB frame description.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: add 2040:d300 Hauppauge WinTV 133559 LF

It is based Mirics MSi3101 reference design and will just work
without any changes.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off

[media] msi3101: add 2040:d300 Hauppauge WinTV 133559 LF

It is based Mirics MSi3101 reference design and will just work
without any changes.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: fix stream re-start halt

Restarting stream fails quite often. Small delay is between urb killing
and stream stop command - likely to give harware some time to process
killed urbs.

[media] msi3101: fix stream re-start halt

Restarting stream fails quite often. Small delay is between urb killing
and stream stop command - likely to give harware some time to process
killed urbs.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: enhance sampling results

It looks like there is some extra data carried to enhance sampling
results. When you tune to some some weak/empty channel those bits
are always zeroes. When

[media] msi3101: enhance sampling results

It looks like there is some extra data carried to enhance sampling
results. When you tune to some some weak/empty channel those bits
are always zeroes. When you tune to some channel where is very
strong signals those bits are all zeroes.
Examining those 32-bits reveals shortly there is 16 pieces of 2-bit
numbers. Number seen are 0, 1 and 3 - for some reason 2 is not used.
I used that number to shift bits given amount to left, "increasing"
sampling resolution by 3-bits. It may be wrong, but after some testing
it still provides better signal.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: add sampling mode control

Whilst Quadrature Sampling is most common sampling technique used in
radio technology there is others too. Add control user could select
sampling mode. We

[media] msi3101: add sampling mode control

Whilst Quadrature Sampling is most common sampling technique used in
radio technology there is others too. Add control user could select
sampling mode. We currently support only quadrature sampling.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: fix sampling rate calculation

These calculations seem to give 100% correct results. Calculation
formulas could be still a little bit wrong as I have no knowledge
what kind of divide

[media] msi3101: fix sampling rate calculation

These calculations seem to give 100% correct results. Calculation
formulas could be still a little bit wrong as I have no knowledge
what kind of dividers, multipliers and VCO limits there really is.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] msi3101: sample is correct term for sample

Just fix wrong term name. No functional changes.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@sams

[media] msi3101: sample is correct term for sample

Just fix wrong term name. No functional changes.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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[media] Mirics MSi3101 SDR Dongle driver

It is first Kernel software defined radio receiver driver.
That device is sold as a digital television solution.
MSi3101 is reference design which consists o

[media] Mirics MSi3101 SDR Dongle driver

It is first Kernel software defined radio receiver driver.
That device is sold as a digital television solution.
MSi3101 is reference design which consists of two chips:
1) MSi2500 USB ADC
2) MSi001 RF-tuner
Driver is put to staging as API is not ready.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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