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path: root/drivers/media/video/au0828/au0828-i2c.c
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2009-04-06V4L/DVB (11343): au0828: make i2c clock speed per-board configurableDevin Heitmueller
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). Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11342): au0828: better document i2c registersDevin Heitmueller
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. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11088): au0828: finish videodev/subdev conversionDevin Heitmueller
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. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11085): au0828/au8522: Codingstyle fixesDevin Heitmueller
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. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11080): au0828: Convert to use v4l2_device/subdev frameworkDevin Heitmueller
Convert over to using the new subdev framework for the au0828 bridge. This includes using the new i2c probing mechanism. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11074): au0828: fix i2c enumeration bugDevin Heitmueller
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. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11067): au0828: workaround a bug in the au0828 i2c handlingDevin Heitmueller
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. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-09-03V4L/DVB (8805): Steven Toth email address changeSteven Toth
I need this so I can better isolate my linux email from my corporate email. Signed-off-by: Steven Toth <stoth@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-04-26V4L/DVB (7750): au0828/ cleanups and fixesAdrian Bunk
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>
2008-04-24V4L/DVB (7638): CodingStyle fixes for au8522 and au0828Mauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7634): au0828: CleanupSteven Toth
au0828: Cleanup Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7627): au0828: replace __FUNCTION__ with __func__Michael Krufky
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>
2008-04-24V4L/DVB (7625): au0828: CleanupSteven Toth
Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7621): Add support for Hauppauge HVR950Q/HVR850/FusioHDTV7-USBSteven Toth
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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