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path: root/drivers/media/video/cx18/cx18-ioctl.c
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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>
2012-07-06[media] cx18: don't mess with vfd->debugHans Verkuil
This is now controlled by sysfs. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-04-19[media] V4L2: drivers implementing vidioc_default should also return -ENOTTYHans Verkuil
If the vidioc_default implementation doesn't support the ioctl, then drivers must return -ENOTTY instead of -EINVAL. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-14[media] v4l2: standardize log start/end messageHans Verkuil
For drivers that properly use the v4l2 framework (i.e. set v4l2_dev in the video_device struct), the start and end messages of VIDIOC_LOG_STATUS are now generated automatically. People tended to forget these, but the v4l2-ctl tool scans for these messages, and it also makes it easier to read the status output in the kernel log. The cx18, ivtv and bttv drivers were changed since they no longer need to log these start/end messages. In saa7164 two empty log_status functions were removed. Also added a helper function to v4l2-ctrl.c that can be used as the vidioc_log_status callback if all you need to do is to log the current control values. This is now used by pwc and vivi. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Steven Toth <stoth@kernellabs.com> Cc: Andy Walls <awalls@md.metrocast.net> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-09-18[media] cx18: Fix videobuf captureSimon Farnsworth
When we moved to 3.0, we found that the cx18 driver was oopsing on close with: NULL pointer deref at: [ 2290.461009] Call Trace: [ 2290.461009] [<c046007b>] ? pm_qos_add_request+0xc/0x6e [ 2290.461009] [<c082631c>] __mutex_lock_common+0x87/0x125 [ 2290.461009] [<f8970e92>] ? cx18_queue_flush+0x31/0x87 [cx18] [ 2290.461009] [<c0436b85>] ? __might_sleep+0x29/0xe4 [ 2290.461009] [<c0826515>] __mutex_lock_slowpath+0x25/0x27 [ 2290.461009] [<c08264b2>] ? mutex_lock+0x2e/0x3b [ 2290.461009] [<c08264b2>] mutex_lock+0x2e/0x3b [ 2290.461009] [<f88d3137>] videobuf_queue_lock+0x13/0x15 [videobuf_core] [ 2290.461009] [<f88d3f86>] __videobuf_free+0xfc/0x112 [videobuf_core] [ 2290.461009] [<f89741e6>] cx18_v4l2_close+0x158/0x172 [cx18] [ 2290.461009] [<c0507522>] ? cpumask_next+0x1a/0x1d [ 2290.461009] [<f88a319d>] v4l2_release+0x35/0x52 [videodev] [ 2290.461009] [<c04f5717>] fput+0x100/0x1a5 [ 2290.461009] [<c04f2e09>] filp_close+0x5c/0x64 [ 2290.461009] [<c04f2e70>] sys_close+0x5f/0x93 [ 2290.461009] [<c082cd5f>] sysenter_do_call+0x12/0x28 Some digging showed that a merge at some previous point partially added broken mmap() support, causing this trace. Remove the broken code completely. On top of that, the calculation in place for "buffer full" depended on UYUV instead of HM12, while our GStreamer code was picking HM12 in some circumstances. Finally, the V4L2_CAP_STREAMING capability was never exposed. Patch it into the YUV encoder node only. Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-07-27[media] ivtv,cx18: Use default version control for VIDIOC_QUERYCAPMauro Carvalho Chehab
After discussing with Andy Walls on irc, we've agreed that this is the best thing to do. No regressions will be introduced, as 3.x.y is greater then the current versions for cx18 and ivtv. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-07-07[media] cx18/ivtv: fix g_tuner supportHans Verkuil
The driver shouldn't override vt->type, and the tuner name should be based on vt->type as well. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] cx18: Clean up mmap() support for raw YUVSimon Farnsworth
The initial version of this patch (commit d5976931639176bb6777755d96b9f8d959f79e9e) had some issues: * It didn't correctly calculate the size of the YUV buffer for 4:2:2, resulting in capture sometimes being offset by 1/3rd of a picture. * There were a lot of variables duplicating information the driver already knew, which have been removed. * There was an in-kernel format conversion - libv4l can do this one, and is the right place to do format conversions anyway. * Some magic numbers weren't properly explained. Fix all these issues, leaving just the move from videobuf to videobuf2 to do. Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk> Acked-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] cx18: mmap() support for raw YUV video captureSteven Toth
Add support for mmap method streaming of raw YUV video on cx18-based hardware, in addition to the existing support for read() streaming of raw YUV and MPEG-2 encoded video. [simon.farnsworth@onelan.co.uk: I forward-ported this from Steven's original work, done under contract to ONELAN. The original code is at http://www.kernellabs.com/hg/~stoth/cx18-videobuf] Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-22[media] cx18: use core priority handlingHans Verkuil
VIDIOC_S/G_PRIORITY handling is now done by the v4l2 core framework. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22[media] cx18: use v4l2_fh as preparation for adding core priority supportHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22[media] v4l2-ioctl: add priority handling supportHans Verkuil
Drivers that use v4l2_fh can now use the core framework support of g/s_priority. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-21[media] cx18: Use the control frameworkHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21V4L/DVB: v4l: remove unused i2c-id.h headersHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02V4L/DVB: drivers/media: Remove unnecessary casts of private_dataJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Jarod Wilson <jarod@redhat.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01V4L/DVB: cx18, cx23885, v4l2 doc, MAINTAINERS: Update Andy Walls' email addressAndy Walls
A trivial change to update my email address from my dead awalls@radix.net address to my current awalls@md.metrocast.net address. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-06-01V4L/DVB: cx18: remove old g/s_fmt from the cx18_av subdevHans Verkuil
cx18 has now switched over completely to the new mediabus subdev ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19V4L/DVB: v4l2-common: simplify prio utility functionsHans Verkuil
v4l2_prio_init/open/close returned an int when in fact they would always return 0. Make these void functions. v4l2_prio_close and v4l2_prio_check pass an enum v4l2_priority as a pointer for no good reason. Replace with a normal enum v4l2_priority argument. These changes will simplify the work of moving priority handling into the v4l core. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19V4L/DVB: cx18: switch to new vbi subdev opsHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26V4L/DVB (13908): cx18: Add initial working VIDIOC_G_ENC_INDEX ioctl() supportAndy Walls
VIDIOC_G_ENC_INDEX support see the light of day. Some notes: 1. With default capture parameters, the CX23418 seems to transfer 192 index entries (4.5 kB worth) at 10 second intervals. 2. Index streams don't seem to be supported for MPEG 2 TS streams 3. The index entries seem to claim every frame is a B-Frame. Possible firmware bug. 4. The cx18 driver does not try to capture an index stream when inserting sliced VBI into the MPEg stream as the offsets would need fixup. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13429): cx18: Add Memory Descriptor List (MDL) layer to buffer handlingAndy Walls
Add a Memory Descriptor List (MDL) layer to buffer handling to implement scatter-gather I/O. Currently there is still only 1 buffer per MDL. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13427): cx18: Rename struct cx18_queue.buffers to struct ↵Andy Walls
cx18_queue.depth Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12199): remove redundant tests on unsignedRoel Kluin
input, inp and i are unsigned. When negative they are wrapped and caught by the other test. Cc: Andy Walls <awalls@radix.net> 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>
2009-04-07V4L/DVB (11381): ivtv/cx18: remove VIDIOC_INT_S_AUDIO_ROUTING debug support.Hans Verkuil
Remove support for the debug call VIDIOC_INT_S_AUDIO_ROUTING from cx18 and ivtv. These internal ioctls shouldn't be exposed. These were only used through the cx18-ctl and ivtv-ctl utilities, and only when testing a new card variant. This cleanup allows the removal of this ioctl from v4l2-common.h. Cc: Andy Walls <awalls@radix.net> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-07V4L/DVB (11380): v4l2-subdev: change s_routing prototypeHans Verkuil
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>
2009-04-07V4L/DVB (11370): v4l2-subdev: move s_std from tuner to core.Hans Verkuil
s_std didn't belong in the tuner ops. Stricly speaking it should be part of the video ops, but it is used by audio and tuner devices as well, so it is more efficient to make it part of the core ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10759): cx18: Convert GPIO connected functions to act as ↵Andy Walls
v4l2_subdevices Convert GPIO line functions, such a audio routing and device resets, to v4l2_subdevices. This essentially completes the conversion of cx18 to the v4l2_device/v4l2_subdevice framework. No regression testing has taken place as of yet. Also an ivtv legacy bug with GPIO mux routing and going to/from radio mode was commented, but not fixed. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10758): cx18: Convert I2C devices to v4l2_subdevicesAndy Walls
This is a major perturbation to cx18 I2C device handling to convert it to the v4l2_device/subdeivce framework. This change breaks GPIO audio multiplexer control for the time being. It will be fixed in a coming change. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10757): cx18, v4l2-chip-ident: Finish conversion of AV decoder core ↵Andy Walls
to v4l2_subdev Added a new chip identifer to v4l2-chip-ident for the integrated A/V broadcast decoder core internal to the CX23418. Completed separation and encapsulation of the A/V decoder core interface as a v4l2_subdevice. The cx18 driver now compiles and links again. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10756): cx18: Slim down instance handling, build names from ↵Andy Walls
v4l2_device.name Convert card instance handling to a lighter weight mechanism like ivtv. Also convert name strings and debug messages to use v4l2_device.name. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10486): ivtv/cx18: fix g_fmt and try_fmt for raw videoHans Verkuil
The raw video device didn't report the image size correctly. When setting a new image the image height has to be a multiple of 32 lines. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10442): cx18: Fixes for enforcing when Encoder Raw VBI params can ↵Andy Walls
be set The Encoder will only allow the Raw VBI parameters, along with a number of other API parameters, to take effect when no analog captures are in progress. These parameters must be set before the first analog capture starts, be it MPEG, VBI, YUV, etc., and cannot be changed until the last one stops. It is not obvious to me what capture channel API parameters are shared and which ones must be set per capture channel, so set them all for every analog capture channel start up. This fixes the driver so that VBI capture can be started up after the MPEG capture is going. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10441): cx18: Fix VBI ioctl() handling and Raw/Sliced VBI state ↵Andy Walls
management More sliced VBI fixes to bring the cx18 driver closer to full V4L2 spec compliance for VBI and to get sliced VBI working better. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10439): cx18: Clean-up and enable sliced VBI handlingAndy Walls
Removed legacy ivtv state variables, added comments, and cleaned up sliced VBI related code. Enabled sliced VBI. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10280): cx18: Rename structure members: dev to pci_dev and v4l2dev ↵Andy Walls
to video_dev Renamed structure member name to be more specific to type in anticipation of updating to the v4l2_device/v4l2_subdev framework. Too many objects named "dev" and /v4l2_\{0,1\}dev/ would be to confusing. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (10279): cx18: Print driver version number when logging statusAndy Walls
Make sure v4l2-ctl --log-status outputs the driver version. Reported-by: David Dombroski <davedom@optonline.net> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-02V4L/DVB (10141): v4l2: debugging API changed to match against driver name ↵Hans Verkuil
instead of ID. Since the i2c driver ID will be removed in the near future we have to modify the v4l2 debugging API to use the driver name instead of driver ID. Note that this API is not used in applications other than v4l2-dbg.cpp as it is for debugging and testing only. Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged with a warning that it is deprecated and will be removed in 2.6.30. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-02V4L/DVB (10138): v4l2-ioctl: change to long return type to match unlocked_ioctl.Hans Verkuil
Since internal to v4l2 the ioctl prototype is the same regardless of it being called through .ioctl or .unlocked_ioctl, we need to convert it all to the long return type of unlocked_ioctl. Thanks to Jean-Francois Moine for posting an initial patch for this and thus bringing it to our attention. Cc: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-02V4L/DVB (10135): v4l2: introduce v4l2_file_operations.Hans Verkuil
Introduce a struct v4l2_file_operations for v4l2 drivers. Remove the unnecessary inode argument. Move compat32 handling (and llseek) into the v4l2-dev core: this is now handled in the v4l2 core and no longer in the drivers themselves. Note that this changeset reverts an earlier patch that changed the return type of__video_ioctl2 from int to long. This change will be reinstated later in a much improved version. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30V4L/DVB (9805): cx18: Port fix for raw/sliced VBI mixup from ivtv and cx25840Andy Walls
This is a port of the fixes Hans Verkuil made for ivtv/cx25840: The service_set field was used to determine whether raw or sliced VBI was desired. This is incorrect since it is perfectly valid to select sliced VBI with a service_set of 0. Instead the driver should check on VIDIOC_S_FMT whether the type field matches the raw or sliced VBI type. Updated the cx18 driver accordingly, including an additional check in cx18_start_v4l2_encode_stream() that didn't exist in ivtv. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30V4L/DVB (9801): cx18: Allow more than 63 capture buffers in rotation per streamAndy Walls
cx18: Allow more than 63 capture buffers in rotation per stream. Implement q_busy to hold buffers the firmware has for use. q_free holds truly unused buffers in a pool. New buffers are given to the firmware as soon as the firmware returns one, if there are any to give to the firmware. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30V4L/DVB (9728): cx18: Copyright attribution update for files modified by awallsAndy Walls
Add copyright attribution for files modified by awalls in 2008 Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30V4L/DVB (9727): cx18: Adjust outgoing mailbox timeouts and remove statistics ↵Andy Walls
logging cx18: Adjust outgoing mailbox timeouts and remove statistics logging. This saves some wasted storage in struct cx18 for each card. Cutting the outgoing mailbox timeouts in half from the previous value appears to be safe with MythTV. Got rid of interrupted case code path after a wait uninterruptable returns. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-13V4L/DVB (9157): cx18/ivtv: add 'PCI:' prefix to bus_info.Hans Verkuil
Suggested by Martin Dauskardt. This is conform what the other drivers do. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12V4L/DVB (9110): cx18: Add default behavior of checking and retrying PCI MMIO ↵Andy Walls
accesses cx18: Add default behavior of checking and retrying PCI MMIO accesses. The concept of checking and retrying PCI MMIO accesses for better reliability in older motherboards was suggested by Steve Toth <stoth@linuxtv.org>. This change implements MMIO retries and the retry_mmio module parameter that is enabled by default. Limited experiments have shown this is more reliable than the mmio_ndelay parameter. mmio_ndelay has insignificant effect with retries enabled. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12V4L/DVB (8920): cx18/ivtv: fix check of window boundaries for VIDIOC_S_FMTHans Verkuil
It was possible to set out-of-bounds windows sizes, this is now fixed. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12V4L/DVB (8913): cx18: Create cx18_ specific wrappers for all pci mmio ↵Andy Walls
accessesors. cx18: Create cx18_ specific wrappers for all pci mmio accessesors. This is a first step in instrumenting all CX23418 PCI bus IO, to debug problems with accessing the CX23418's PCI memory mapped IO. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12V4L/DVB (8773): cx18: Fix cx18_find_handle() and add error checkingAndy Walls
cx18: Fix cx18_find_handle() and add error checking. cx18_find_handle() did not find a good task handle and would use the invalid task handle under common conditions. Added a define for the invalid task handle and added error checking as well. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12V4L/DVB (8772): cx18: Convert cx18_queue buffers member to atomic_tAndy Walls
cx18: Convert cx18_queue buffers member to atomic_t. This allows safe concurrent access to check if a queue has data without having to acquire the queue spinlock. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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