summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/frontends/au8522_decoder.c
AgeCommit message (Collapse)AuthorFilesLines
2012-08-13[media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab1-839/+0
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-09[media] au0828: prevent i2c gate from being kept open while in analog modeDevin Heitmueller1-5/+0
The original implementation of the analog support would use an i2c_gate_ctrl function when using the digital side of the au8522, but on the analog side we would always just force the gate open and leave it open all the time. This can have adverse effects on the xc5000 given the tuner is receiving all the spurious i2c traffic (a problem which can be exaggerated due to bugs in the au0828 i2c hardware implementation). Rework the existing hack to only open/close the gate when actually talking to the tuner. This logic might need to be reworked a bit if anybody ever tries to add support for a board that has the au0828/au8522 but doesn't have digital support implemented (because the i2c_gate_ctrl callback is being set in the DVB attach). However given how few different models are in circulation, this can be deferred until such a situation arises (if ever). Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-09[media] au8522: fix intermittent lockup of analog video decoderDevin Heitmueller1-2/+4
It turns up the autodetection for the video standard in the au8522 is prone to hanging the chip until a reset is performed. This condition is trivial to reproduce simply by tuning to a station and then rapidly unplugging/ replugging the coax feed. Because we've never claimed to support anything other than NTSC-M, just disable the video-standard autodetection logic and force it to always be NTSC-M. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08[media] convert drivers/media/* to use module_i2c_driver()Axel Lin1-12/+1
This patch converts the drivers in drivers/media/* to use the module_i2_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Heungjun Kim <riverful.kim@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Andrew Chew <achew@nvidia.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Michael Grzeschik <m.grzeschik@pengutronix.de> Cc: Johannes Obermaier <johannes.obermaier@gmail.com> Cc: Steven Toth <stoth@kernellabs.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-07-27[media] au8522: set signal field to 100% when signal presentDevin Heitmueller1-1/+1
The signal state field in G_TUNER is typically scaled from 0-100%. Since we don't know the signal level, we really would prefer the field to contain 100% than 1/256, which in many utilities (such as v4l2-ctl) rounds to 0% even when a signal is actually present. This patch makes the behavior consistent with other drivers. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29[media] au8522: Handle differences in comb filter config for s-video inputDevin Heitmueller1-4/+12
Tweak the comb filter config when in s-video mode to match the Hauppauge Windows driver values (based on register dumps). This work was sponsored by GetWellNetwork Inc. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29[media] au8522: fix clamp control for different video modesDevin Heitmueller1-6/+11
Straighten out the clamp control configurations for the various video modes, based off of register diffs done against the Hauppauge Windows driver. This work was sponsored by GetWellNetwork Inc. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29[media] au8522: cleanup code which disables audio decoderDevin Heitmueller1-15/+1
Cleanup the routine which disables the audio decoder. In particular, the i2s output was being shut off but the audio processor itself was not, resulting in more power being consumed than needed. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-12-29[media] au8522: Properly set default brightnessDevin Heitmueller1-1/+1
The chip's default value for the brightness didn't match what we were sending back in the queryctrl ioctl(), so if the application actually set the brightness to the "default", it would actually end up being way too bright. This work was sponsored by GetWellNetwork Inc. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21V4L/DVB: au8522_decoder: remove obsolete v4l2-i2c-drv.h headerHans Verkuil1-6/+21
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01V4L/DVB: au8522_decoder: g/s_fmt doesn't do anything: removeHans Verkuil1-26/+0
g/s_fmt is going to disappear, so if it is not doing anything, then just remove it. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18V4L/DVB: au8522: fix case where we don't perform the first tune after going ↵Devin Heitmueller1-0/+5
digital Address a problem found in MythTV where if we are in digital mode, switch to analog mode, and the switch back to digital mode, the first tuning request after switching back to digital mode gets dropped. This is because the au8522 maintains internal state, and would think the demod was already tuned to the target frequency. Thanks to Zaphod Beeblebrox for reporting this issue. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-18V4L/DVB: au8522: fix race condition in switching from digital to analog modeDevin Heitmueller1-0/+2
With applications like MythTV, switching inputs results in closing the digital side and then immediately opening the analog side. This exposes a race condition where the dvb_frontend kernel thread powers down the chip and closes the i2c gate even though we're in the middle of bringing up the analog part of the chip (since the shutdown of the dvb_frontend kernel thread occurs asychronously). Introduce a construct to keep track of what mode we're in, and drop requests to power down or management the gate if we've already switched to analog mode. Thanks to Zaphod Beeblebrox for reporting this issue. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13688): au8522: modify the attributes of local filter coefficientsMárton Németh1-2/+2
Make the local filter coefficients static and const. This will eliminate the following sparse warnings (see "make C=1"): * au8522_decoder.c:71:31: warning: symbol 'filter_coef' was not declared. Should it be static? * au8522_decoder.c:113:31: warning: symbol 'lpfilter_coef' was not declared. Should it be static? Signed-off-by: Márton Németh <nm127@freemail.hu> Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-09Merge branch 'for_linus' of ↵Linus Torvalds1-2/+20
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (345 commits) V4L/DVB (13542): ir-keytable: Allow dynamic table change V4L/DVB (13541): atbm8830: replace 64-bit division and floating point usage V4L/DVB (13540): ir-common: Cleanup get key evdev code V4L/DVB (13539): ir-common: add __func__ for debug messages V4L/DVB (13538): ir-common: Use a dynamic keycode table V4L/DVB (13537): ir: Prepare the code for dynamic keycode table allocation V4L/DVB (13536): em28xx: Use the full RC5 code on HVR-950 Remote Controller V4L/DVB (13535): ir-common: Add a hauppauge new table with the complete RC5 code V4L/DVB (13534): ir-common: Remove some unused fields/structs V4L/DVB (13533): ir: use dynamic tables, instead of static ones V4L/DVB (13532): ir-common: Add infrastructure to use a dynamic keycode table V4L/DVB (13531): ir-common: rename the debug routine to allow exporting it V4L/DVB (13458): go7007: subdev conversion V4L/DVB (13457): s2250: subdev conversion V4L/DVB (13456): s2250: Change module structure V4L/DVB (13528): em28xx: add support for em2800 VC211A card em28xx: don't reduce scale to half size for em2800 em28xx: don't load audio modules when AC97 is mis-detected em28xx: em2800 chips support max width of 640 V4L/DVB (13523): dvb-bt8xx: fix compile warning ... Fix up trivial conflicts due to spelling fixes from the trivial tree in Documentation/video4linux/gspca.txt drivers/media/video/cx18/cx18-mailbox.h
2009-12-05V4L/DVB (13187): au8522: add support for saturation and hue controlsDevin Heitmueller1-2/+20
Add support for saturation/hue controls, prompted by errors showing up in the mythbackend log. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-19V4L/DVB (13018): kzalloc failure ignored in au8522_probe()Roel Kluin1-0/+5
Prevent NULL dereference if kzalloc() fails. Cc: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11380): v4l2-subdev: change s_routing prototypeHans Verkuil1-6/+6
It is no longer needed to use a struct pointer as argument, since v4l2_subdev doesn't require that ioctl-like approach anymore. Instead just pass the input, output and config (new!) arguments directly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11314): au8522: remove unused I2C_DRIVERIDHans Verkuil1-1/+0
I2C_DRIVERIDs are no longer needed with v4l2_subdev and will be removed from the kernel soon. Cc: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11100): au8522: fix compilation warning.Hans Verkuil1-3/+0
normal_i2c and I2C_CLIENT_INSMOD are only necessary for kernels < 2.6.22. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11089): au8522: finish conversion to v4l2_device/subdevDevin Heitmueller1-7/+1
Per Hans Verkuil <hverkuil@xs4all.nl> instruction, remove the au8522_command and replace v4l2-i2c-drv-legacy.h with v4l2-i2c-drv.h Thanks to Hans Verkuil <hverkuil@xs4all.nl> for reviewing the au8522 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 Heitmueller1-114/+119
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 (11076): au0828: make g_chip_ident call work properlyDevin Heitmueller1-0/+1
Make the g_chip_ident call work for the au0828/au8522. Discovered when testing with the v4l2_compliance tool Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> [mchehab@redhat.com: fix merge conflict, due to a path change for analog demod] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11065): au8522: add support for analog side of demodulatorDevin Heitmueller1-0/+839
Add support for the analog functionality in the au8522 analog/digital demodulator 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> [mchehab: renamed drivers/media/video/au8522_decoder.c as drivers/media/dvb/frontends/au8522_decoder.c to avoid breaking bisect] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 05:08:18 +0000