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path: root/drivers/media/pci/cx25821/cx25821-video.c
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2014-12-23[media] cx25821: remove video output supportHans Verkuil
The video output functionality never worked for this driver. Now remove the creation of the output video nodes as well to prevent users from thinking that video output is available, when it isn't. To correctly implement this the video output should use vb2 as well, and that requires rewriting the output DMA setup. But without hardware to test I am not able to do that. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-23[media] cx25821: add create_bufs supportHans Verkuil
Add support for the VIDIOC_CREATE_BUFS ioctl. This was missing in this driver and in vb2 it's trivial to add. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-23[media] cx25821: convert to vb2Hans Verkuil
This patch converts the cx25821 driver from the old videobuf framework to the new vb2 framework. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-23[media] cx25821: remove bogus btcx_risc dependencyHans Verkuil
Those btcx_risc functions are meant for use with bttv, other drivers should just allocate the memory themselves. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-07-17[media] v4l: Support extending the v4l2_pix_format structureLaurent Pinchart
The v4l2_pix_format structure has no reserved field. It is embedded in the v4l2_framebuffer structure which has no reserved fields either, and in the v4l2_format structure which has reserved fields that were not previously required to be zeroed out by applications. To allow extending v4l2_pix_format, inline it in the v4l2_framebuffer structure, and use the priv field as a magic value to indicate that the application has set all v4l2_pix_format extended fields and zeroed all reserved fields following the v4l2_pix_format field in the v4l2_format structure. The availability of this API extension is reported to userspace through the new V4L2_CAP_EXT_PIX_FORMAT capability flag. Just checking that the priv field is still set to the magic value at [GS]_FMT return wouldn't be enough, as older kernels don't zero the priv field on return. To simplify the internal API towards drivers zero the extended fields and set the priv field to the magic value for applications not aware of the extensions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-04[media] media: remove the setting of the flag V4L2_FL_USE_FH_PRIORamakrishnan Muthukrishnan
Since all the drivers that use `struct v4l2_fh' use the core priority checking, the setting of the flag in the drivers can be removed. Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-04-25[media] cx25821-video: declare cx25821_vidioc_s_std as staticMauro Carvalho Chehab
Fixes the following warning: drivers/media/pci/cx25821/cx25821-video.c: At top level: drivers/media/pci/cx25821/cx25821-video.c:766:5: warning: no previous prototype for 'cx25821_vidioc_s_std' [-Wmissing-prototypes] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-25[media] cx25821-video: remove maxw from cx25821_vidioc_try_fmt_vid_capMauro Carvalho Chehab
After cx25821-video cleanup, this var is not used anymore: drivers/media/pci/cx25821/cx25821-video.c: In function 'cx25821_vidioc_try_fmt_vid_cap': drivers/media/pci/cx25821/cx25821-video.c:591:15: warning: variable 'maxw' set but not used [-Wunused-but-set-variable] as the code now checks the max width as the default case for the range check. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: replace custom ioctls with write()Hans Verkuil
Ideally this should be implemented with vb2, but it'll do for now. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: drop cx25821-video-upstream-ch2.c/hHans Verkuil
cx25821-video-upstream_ch2.c/h is practically identical to cx25821-video-upstream.c/h so add support for ch2 into cx25821-video-upstream.c instead. After this we can replace the custom ioctls with a proper write() interface. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: add output format ioctlsHans Verkuil
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: prepare querycap for output supportHans Verkuil
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: group all fmt functions togetherHans Verkuil
No other changes, just function reordering. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: setup output nodes correctlyHans Verkuil
Drop the custom ioctls and enable the video output nodes again, this time using standard ioctls. The next step will be to provide a proper write() interface. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove references to subdevices that aren't thereHans Verkuil
This driver does not have subdevices, so why call subdev ops? After removing that it became apparent that only Composite is supported as input, so remove also any reference to other inputs. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove custom ioctls that duplicate v4l2 ioctlsHans Verkuil
No idea why these custom ioctls exist: they have perfectly normal v4l2 counterparts which are already implemented. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: g/s/try/enum_fmt related fixes and cleanupsHans Verkuil
- fill in colorspace - zero priv - delete unsupported formats - fix field handling - s_std should update width/height - proper mapping of width/height to valid resolutions Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: switch to v4l2_fh, add event and prio handlingHans Verkuil
It is now possible to remove cx25821_fh and replace it with v4l2_fh, which in turn makes event handling and core prio handling possible. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: replace resource management functions with fh ownershipHans Verkuil
Just remember which filehandle is streaming instead of using complicated resource masks. After this patch we can replace cx25821_fh with v4l2_fh. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: move vidq from cx25821_fh to cx25821_channelHans Verkuil
This is not a per-filehandle object, it's a per-channel object. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove 'type' field from cx25821_fhHans Verkuil
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: use core lockingHans Verkuil
This allows us to replace .ioctl with .unlocked_ioctl. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove unnecessary debug messagesHans Verkuil
The v4l2 core already has support for debugging ioctls/file operations. No need to do that again. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: convert to the control frameworkHans Verkuil
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: embed video_device, clean up some kernel log spamHans Verkuil
Embed the video_device struct instead of allocating it. Remove some of the annoying and ugly kernel messages shown during loading and unloading of the module. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove cropping ioctlsHans Verkuil
This driver does not implement cropping, so remove the cropping ioctls. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: make lots of externals staticHans Verkuil
A lot of functions and variables were external when they really can be declared as static. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: s_input didn't check for invalid inputHans Verkuil
The s_input implementation allowed input 1 even if that didn't exist. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove unnecessary global devlistHans Verkuil
This device list is not necessary. The kernel already has all that information, so just use that instead. Also remove a bogus refcount and some dead 'private_free' code in the alsa driver. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: make cx25821_sram_channels constHans Verkuil
And get rid of the channel0-11 external pointers and two more unused fields in cx25821.h. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: fix log_status, querycapHans Verkuil
log_status shouldn't print LOG STATUS lines, the core does that already. Fix querycap version number and add device_caps support. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove unused fields, ioctlsHans Verkuil
Do some spring cleaning: - there are no board defines with tuners, so remove bogus tuner support. - tv standard handling has nothing to do with tuners, so keep that. - replace the deprecated current_norm by g_std. - querystd isn't implemented, so remove the ioctl. - remove a bunch of unused fields in cx25821.h Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: remove bogus radio/vbi/'video-ioctl' supportHans Verkuil
This device does not support radio or vbi, so remove anything referring to that. In addition, the driver created an 'video ioctl' node, which was unused and was effectively identical to the first video node. This bogus video node is now removed, leaving us with 8 video capture nodes and 2 video output nodes. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16[media] cx25821: fix compiler warningHans Verkuil
drivers/media/pci/cx25821/cx25821-video.c: In function ‘cx25821_video_register’: drivers/media/pci/cx25821/cx25821-video.c:518:1: warning: the frame size of 1600 bytes is larger than 1024 bytes [-Wframe-larger-than=] Fixed by just making the struct video_device template static const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-15[media] cx25821: the audio channel was registered as a video nodeHans Verkuil
Skip the audio channel when registering the video nodes. This fixes a bug where that incorrectly registered 'video' node was never unregistered. Note: this bug only surfaces if the video output nodes are enabled again after the previous patch disabled them. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-15[media] cx25821: do not expose broken video output streamsHans Verkuil
The cx25821 driver has support for one audio output channel and two video output channels. This is implemented in a very ugly and very evil way through a custom ioctl that passes the filename of a file containing the video data, which is then read by the driver itself using vfs. There are a number of problems with this: 1) it's very ugly and very evil (I can't say that often enough). 2) V4L2 supports video output, so why not use that? 3) it's very buggy, closing the filehandle through which you passed the ioctl will oops the kernel. 4) it's a nasty security leak since this allows you to load any file in the system as a video or audio source, so in theory you can output /etc/passwd to audio or video out and record & decode it on another device. Because of all these issues we no longer register those output video nodes. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24[media] v4l2: add const to argument of write-only s_register ioctlHans Verkuil
This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24[media] v4l2: pass std by value to the write-only s_std ioctlHans Verkuil
This ioctl is defined as IOW, so pass the argument by value instead of by reference. I could have chosen to add const instead, but this is 1) easier to handle in drivers and 2) consistent with the s_std subdev operation. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24[media] v4l2: add const to argument of write-only s_tuner ioctlHans Verkuil
This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24[media] v4l2: add const to argument of write-only s_frequency ioctlHans Verkuil
This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-12-21[media] v4l: Convert drivers to use monotonic timestampsSakari Ailus
Convert drivers using wall clock time (CLOCK_REALTIME) to timestamp from the monotonic timer (CLOCK_MONOTONIC). Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-27[media] cx25821: get rid of warning: no previous prototypeMauro Carvalho Chehab
drivers/media/pci/cx25821/cx25821-audio-upstream.c:136:5: warning: no previous prototype for 'cx25821_risc_buffer_upstream_audio' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:200:6: warning: no previous prototype for 'cx25821_free_memory_audio' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:259:5: warning: no previous prototype for 'cx25821_get_audio_data' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:354:5: warning: no previous prototype for 'cx25821_openfile_audio' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:47:5: warning: no previous prototype for 'cx25821_sram_channel_setup_upstream_audio' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:493:5: warning: no previous prototype for 'cx25821_audio_upstream_irq' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-audio-upstream.c:637:5: warning: no previous prototype for 'cx25821_start_audio_dma_upstream' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-biffuncs.h:28:11: warning: no previous prototype for 'getBit' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-biffuncs.h:33:12: warning: no previous prototype for 'clearBitAtPos' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-biffuncs.h:38:12: warning: no previous prototype for 'setBitAtPos' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-i2c.c:332:6: warning: no previous prototype for 'cx25821_av_clk' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video.c:294:5: warning: no previous prototype for 'cx25821_restart_video_queue' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video.c:345:6: warning: no previous prototype for 'cx25821_vid_timeout' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:176:5: warning: no previous prototype for 'cx25821_risc_buffer_upstream' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:303:5: warning: no previous prototype for 'cx25821_get_frame' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:408:5: warning: no previous prototype for 'cx25821_openfile' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:489:5: warning: no previous prototype for 'cx25821_upstream_buffer_prepare' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:551:5: warning: no previous prototype for 'cx25821_video_upstream_irq' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:667:6: warning: no previous prototype for 'cx25821_set_pixelengine' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream.c:699:5: warning: no previous prototype for 'cx25821_start_video_dma_upstream' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c:126:5: warning: no previous prototype for 'cx25821_risc_buffer_upstream_ch2' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c:258:5: warning: no previous prototype for 'cx25821_get_frame_ch2' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c:363:5: warning: no previous prototype for 'cx25821_openfile_ch2' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c:510:5: warning: no previous prototype for 'cx25821_video_upstream_irq_ch2' [-Wmissing-prototypes] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c:650:5: warning: no previous prototype for 'cx25821_start_video_dma_upstream_ch2' [-Wmissing-prototypes] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-26[media] v4l2: make vidioc_s_crop constHans Verkuil
Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_crop. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] rename most media/video pci drivers to media/pciMauro Carvalho Chehab
Rename all PCI drivers with their own directory under drivers/media/video into drivers/media/pci and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
generated by cgit (git 2.34.1) at 2025-05-30 13:56:28 +0000