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From: Michael Krufky <mkrufky@kernellabs.com>
Priority: normal
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Setup the i2c clock speed to be definable on a per-board basis. This allows
us to explicitly set the clock speed to 30 KHz on the 950q, and also gets rid
of code which sets it on a basis of what chip the i2c master is talking to
at any given time (which could have caused issues because i2c slaves should
never receive commands at a clock higher than their supported clock speed).
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Change the #define entries for the i2c registers to be more meaningful, and
document the valid values for the registers. Note that this changeset makes
*no* functional changes to the code.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Per Hans Verkuil <hverkuil@xs4all.nl> instruction, remove the deprecated
attach_inform/detach_inform routines, and convert over the i2c calls to
subdev calls.
Thanks to Hans Verkuil <hverkuil@xs4all.nl> for providing feedback on the
au0828 analog support.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Take a pass over all of the au0828/au8522 files and cleanup all the codingstyle
issues. This patch does not make *any* functional change to the code.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Convert over to using the new subdev framework for the au0828 bridge. This
includes using the new i2c probing mechanism.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
There was a bug where enumerating the i2c for devices would result in false
positives. The root of the issue was the scanning was using SMBUS_QUICK
messages, which are zero length write requests (which our i2c adapter
implementation didn't handle). Because we never strobed any bytes onto the
bus, the status register would still contain the value from the previous
request.
Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
There is an issue related to the i2c clock for addressing the xc5000. The
au0828 chip does not support clock stretching, which the xc5000 makes use of.
This results in cases where we silently get back garbage in i2c read
operations. To work around this issue until we slow down the i2c clock when
talking with that specific device.
This was not an issue before we had analog support because we never needed to
enumerate the i2c bus, and digital tuning never actually needed to perform
read operations against the xc5000.
Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
changeset 4ecae6da8244 removed algo_control from i2c drivers. However,
on older kernels, a dummy function to implement algo_control is required,
otherwise, an OOPS is generated.
This patch adds a backport for all i2c drivers that defines an
i2c_algorithm, except for cafe_ccic, since OLPC hardware only works
for kernels newer than 2.6.19.
Some of the backported drivers would need also extra changes to work with
older kernels, as specified on v4l/versions.txt. Yet, I decided to add
the backport for those drivers also, since the lack of algo_control doesn't
generate any compilation error, but it is enough to break the driver. So,
better to all for all boards than to allow compiling a kernel backported that
just generates OOPS.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Steven Toth <stoth@hauppauge.com>
I need this so I can better isolate my linux email from my
corporate email.
Priority: normal
Signed-off-by: Steven Toth <stoth@linuxtv.org>
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From: Hans Verkuil <hverkuil@xs4all.nl>
First phase of the backwards compatibility cleanup: stop supporting kernels
older than 2.6.0.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Adrian Bunk <bunk@kernel.org>
This patch contains the following cleanups and fixes:
- "debug" is definitely not a good name for a global variable,
renamed it to "au0828_debug"
this fixes a compile error with some kernel configurations
- since the module parameter is int the variable shouldn't be unsigned
- remove the {usb,bridge,i2c}_debug module parameters since they are
already covered by the "debug" module parameter
- remove the unused au0828_bcount
- make the needlessly global i2c_scan static
- make the needlessly global dvb_register() static
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Steven Toth <stoth@hauppauge.com>
au0828: Cleanup
Signed-off-by: Steven Toth <stoth@hauppauge.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
replace __FUNCTION__ with __func__ and clean associated checkpatch.pl
warnings.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Steven Toth <stoth@hauppauge.com>
Including support for the AU0828 USB Bridge.
Including support for the AU8522 ATSC/QAM Demodulator.
Including support for the AU8522 ATSC/QAM Demodulator.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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