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* [media] v4l2-core: Add support for touch devicesNick Dyer2016-08-231-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some touch controllers send out touch data in a similar way to a greyscale frame grabber. Add new device type VFL_TYPE_TOUCH: - This uses a new device prefix v4l-touch for these devices, to stop generic capture software from treating them as webcams. Otherwise, touch is treated similarly to video capture. - Add V4L2_INPUT_TYPE_TOUCH - Add MEDIA_INTF_T_V4L_TOUCH - Add V4L2_CAP_TOUCH to indicate device is a touch device Add formats: - V4L2_TCH_FMT_DELTA_TD16 for signed 16-bit touch deltas - V4L2_TCH_FMT_DELTA_TD08 for signed 16-bit touch deltas - V4L2_TCH_FMT_TU16 for unsigned 16-bit touch data - V4L2_TCH_FMT_TU08 for unsigned 8-bit touch data This support will be used by: - Atmel maXTouch (atmel_mxt_ts) - Synaptics RMI4. - sur40 Signed-off-by: Nick Dyer <nick@shmanahar.org> Tested-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* [media] doc-rst: document v4l2-dev.hMauro Carvalho Chehab2016-07-231-34/+0
| | | | | | | Add documentation for v4l2-dev.h, and put it at v4l2-framework.rst, where struct video_device is currently documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] media: Add obj_type field to struct media_entityLaurent Pinchart2016-04-131-0/+1
| | | | | | | | | | | | | | | | | | | Code that processes media entities can require knowledge of the structure type that embeds a particular media entity instance in order to cast the entity to the proper object type. This needs is shown by the presence of the is_media_entity_v4l2_io and is_media_entity_v4l2_subdev functions. The implementation of those two functions relies on the entity function field, which is both a wrong and an inefficient design, without even mentioning the maintenance issue involved in updating the functions every time a new entity function is added. Fix this by adding add an obj_type field to the media entity structure to carry the information. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media_entity: remove gfp_flags argumentMauro Carvalho Chehab2016-01-111-2/+1
| | | | | | | | | | | | | | We should not be creating device nodes at IRQ contexts. So, the only flags we'll be using will be GFP_KERNEL. Let's remove the gfp_flags, in order to make the interface simpler. If we ever need it, it would be easy to revert those changes. While here, remove an extra blank line. Suggested-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uapi/media.h: Rename entities types to functionsMauro Carvalho Chehab2016-01-111-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename the userspace types from MEDIA_ENT_T_ to MEDIA_ENT_F_ and add the backward compatibility bits. The changes at the .c files was generated by the following coccinelle script: @@ @@ -MEDIA_ENT_T_UNKNOWN +MEDIA_ENT_F_UNKNOWN @@ @@ -MEDIA_ENT_T_DVB_BASE +MEDIA_ENT_F_DVB_BASE @@ @@ -MEDIA_ENT_T_V4L2_BASE +MEDIA_ENT_F_V4L2_BASE @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_BASE +MEDIA_ENT_F_V4L2_SUBDEV_BASE @@ @@ -MEDIA_ENT_T_CONNECTOR_BASE +MEDIA_ENT_F_CONNECTOR_BASE @@ @@ -MEDIA_ENT_T_V4L2_VIDEO +MEDIA_ENT_F_IO_V4L @@ @@ -MEDIA_ENT_T_V4L2_VBI +MEDIA_ENT_F_IO_VBI @@ @@ -MEDIA_ENT_T_V4L2_SWRADIO +MEDIA_ENT_F_IO_SWRADIO @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN +MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN @@ @@ -MEDIA_ENT_T_CONN_RF +MEDIA_ENT_F_CONN_RF @@ @@ -MEDIA_ENT_T_CONN_SVIDEO +MEDIA_ENT_F_CONN_SVIDEO @@ @@ -MEDIA_ENT_T_CONN_COMPOSITE +MEDIA_ENT_F_CONN_COMPOSITE @@ @@ -MEDIA_ENT_T_CONN_TEST +MEDIA_ENT_F_CONN_TEST @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_SENSOR +MEDIA_ENT_F_CAM_SENSOR @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_FLASH +MEDIA_ENT_F_FLASH @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_LENS +MEDIA_ENT_F_LENS @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_DECODER +MEDIA_ENT_F_ATV_DECODER @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_TUNER +MEDIA_ENT_F_TUNER @@ @@ -MEDIA_ENT_T_DVB_DEMOD +MEDIA_ENT_F_DTV_DEMOD @@ @@ -MEDIA_ENT_T_DVB_DEMUX +MEDIA_ENT_F_TS_DEMUX @@ @@ -MEDIA_ENT_T_DVB_TSOUT +MEDIA_ENT_F_IO_DTV @@ @@ -MEDIA_ENT_T_DVB_CA +MEDIA_ENT_F_DTV_CA @@ @@ -MEDIA_ENT_T_DVB_NET_DECAP +MEDIA_ENT_F_DTV_NET_DECAP Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media-entity.h: rename entity.type to entity.functionMauro Carvalho Chehab2016-01-111-7/+7
| | | | | | | | | | | | | | | | | Entities should have one or more functions. Calling it as a type proofed to not be correct, as an entity could eventually have more than one type. So, rename the field as function. Please notice that this patch doesn't extend support for multiple function entities. Such change will happen when we have real case drivers using it. No functional changes. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2 core: enable all interface links at initMauro Carvalho Chehab2016-01-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Interface links are normally enabled, meaning that the interfaces are bound to the entities. So, any ioctl send to the interface are reflected at the entities managed by the interface. However, when a device is used, other interfaces for the same hardware could be decoupled from the entities linked to them, because the hardware may have some parts busy. That's for example, what happens when an hybrid TV device is in use. If it is streaming analog TV or capturing signals from S-Video/Composite connectors, typically the digital part of the hardware can't be used and vice-versa. This is generally due to some internal hardware or firmware limitation, that it is not easily mapped via data pipelines. What the Kernel drivers do internally is that they decouple the hardware from the interface. So, all changes, if allowed, are done only at some interface cache, but not physically changed at the hardware. The usage is similar to the usage of the MEDIA_LNK_FL_ENABLED on data links. So, let's use the same flag to indicate if either the interface to entity link is bound/enabled or not. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-core: create MC interfaces for devnodesMauro Carvalho Chehab2016-01-111-18/+93
| | | | | | | | | | | V4L2 device (and subdevice) nodes should create an interface, if the Media Controller support is enabled. Please notice that radio devices should not create an entity, as radio input/output is either via wires or via ALSA. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] replace all occurrences of MEDIA_ENT_T_DEVNODE_V4LMauro Carvalho Chehab2016-01-111-1/+1
| | | | | | | | | | | | Now that interfaces and entities are distinct, it makes no sense of keeping something named as MEDIA_ENT_T_DEVNODE. This change was done with this script: for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DEVNODE_V4L,MEDIA_ENT_T_V4L2_VIDEO, <$i >a && mv a $i; done Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2: add support for SDR transmitterAntti Palosaari2015-10-201-2/+12
| | | | | | | | | | | | | | | | | | New IOCTL ops: vidioc_enum_fmt_sdr_out vidioc_g_fmt_sdr_out vidioc_s_fmt_sdr_out vidioc_try_fmt_sdr_out New vb2 buffertype: V4L2_BUF_TYPE_SDR_OUTPUT New v4l2 capability: V4L2_CAP_SDR_OUTPUT Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-dev: disable selection ioctls for non-video devicesHans Verkuil2015-04-021-8/+8
| | | | | | | | | | The selection/cropping ioctls are only valid for video nodes, not for vbi. Found by v4l2-compliance when run on a VBI device node. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-core: drop g/s_priority opsHans Verkuil2015-03-021-4/+3
| | | | | | | | | | | | The handling of VIDIOC_G/S_PRIORITY is now entirely done by the V4L2 core, so we can drop the g/s_priority ioctl ops. We do have to make sure though that when S_PRIORITY is called we check that the driver used struct v4l2_fh. This check can be removed once all drivers are converted to that structure. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-core: remove the old .ioctl BKL replacementHans Verkuil2015-03-021-28/+0
| | | | | | | | | | | To keep V4L2 drivers that did not yet convert to unlocked_ioctl happy, the v4l2 core had a .ioctl file operation that took a V4L2 lock. The last drivers are now converted to unlocked_ioctl, so all this old code can now be removed. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: Fix DVB devnode representation at media controllerMauro Carvalho Chehab2015-02-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | The previous provision for DVB media controller support were to define an ID (likely meaning the adapter number) for the DVB devnodes. This is just plain wrong. Just like V4L, DVB devices (and any other device node)) are uniquely identified via a (major, minor) tuple. This is enough to uniquely identify a devnode, no matter what API it implements. So, before we go too far, let's mark the old v4l, fb, dvb and alsa "devnode" info as deprecated, and just call it as "dev". We can latter add fields specific to each API if needed. As we don't want to break compilation on already existing apps, let's just keep the old definitions as-is, adding a note that those are deprecated at media-entity.h. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2 core: improve debug flag handlingHans Verkuil2014-12-231-13/+15
| | | | | | | | | | | | | | | | The old debug field is renamed to dev_debug to ensure that existing drivers (including out-of-tree drivers) that try to use the old name will no longer compile. A comment has also been added that makes it explicit that drivers shouldn't use this field. Additional bits have been added to the debug flag to be more fine-grained when debugging, especially when dealing with streaming ioctls and read, write and poll. You want to enable those explicitly to prevent flooding the log when streaming unless you actually want to do that. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: remove emacs editor variablesHans Verkuil2014-12-221-7/+0
| | | | | | | | | | 1) This is not allowed by the kernel coding style 2) Just configure your editor correctly 3) It's really ugly Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-dev: vdev->v4l2_dev is always set, so simplify codeHans Verkuil2014-11-251-20/+14
| | | | | | | | | These days vdev->v4l2_dev must always be set. This means that some old code that still tests for a NULL vdev->v4l2_dev can be removed or simplified. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-dev: don't debug poll unless the debug level > 2Hans Verkuil2014-07-171-1/+1
| | | | | | | | Some applications poll a lot, so prevent the poll message from flooding the log. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-dev: streamon/off is only a valid ioctl for video, vbi and sdrHans Verkuil2014-07-171-2/+2
| | | | | | | | | The VIDIOC_STREAMON/OFF ioctls are not valid for radio devices, just like the other streaming I/O ioctls. Add the streamon/off ioctls to the other streaming I/O ioctls. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2: integrate support for VIDIOC_QUERY_EXT_CTRLHans Verkuil2014-07-171-0/+2
| | | | | | | | Add the v4l2 core plumbing for the new VIDIOC_QUERY_EXT_CTRL ioctl. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] media: v4l2-core: remove the use of V4L2_FL_USE_FH_PRIO flagRamakrishnan Muthukrishnan2014-07-041-4/+2
| | | | | | | | | | | | Since all the drivers that use `struct v4l2_fh' use the core priority checking instead of doing it themselves, this flag can be removed. This patch removes the usage of the flag from v4l2-core. 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>
* [media] v4l2: add VIDIOC_G/S_EDID support to the v4l2 coreHans Verkuil2014-03-111-0/+2
| | | | | | | | | Support this ioctl as part of the v4l2 core. Use the new ioctl name and struct v4l2_edid type in the existing core code. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: do not allow modulator ioctls for non-radio devicesHans Verkuil2014-03-051-2/+3
| | | | | | | | | Modulator ioctls could be enabled mistakenly for non-radio devices. Currently those ioctls are only valid for radio. Fix it. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: enable some IOCTLs for SDR receiverAntti Palosaari2014-03-051-3/+18
| | | | | | | | | | | Enable stream format (FMT) IOCTLs for SDR use. These are used for negotiate used data stream format. Reorganise some some IOCTL selection logic. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: add device type for Software Defined RadioAntti Palosaari2014-03-051-0/+6
| | | | | | | | | Add new V4L device type VFL_TYPE_SDR for Software Defined Radio. It is registered as /dev/swradio0 (/dev/sdr0 was already reserved). Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] media: v4l2-dev: fix video device index assignmentMarek Szyprowski2014-01-271-1/+1
| | | | | | | | | | | | | | | | | The side effect of commit 1056e4388b045 ("v4l2-dev: Fix race condition on __video_register_device") is the increased number of index value assigned on video_device registration. Before that commit video_devices were numbered from 0, after it, the indexes starts from 1, because get_index() always count the device, which is being registered. Some device drivers rely on video_device index number for internal purposes, i.e. s5p-mfc driver stopped working after that patch. This patch restores the old method of numbering the video_device indexes. Cc: stable@vger.kernel.org # for v3.12 Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Ricardo Ribalda <ricardo.ribalda@gmail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2: move tracepoints to video_usercopyHans Verkuil2014-01-071-9/+0
| | | | | | | | | | | | | | | | | The (d)qbuf ioctls were traced in the low-level v4l2 ioctl function. The trace was outside the serialization lock, so that can affect the usefulness of the timing. In addition, the __user pointer was expected instead of a proper kernel pointer. By moving the tracepoints to video_usercopy we ensure that the trace calls use the correct kernel pointer, and that it happens right after the ioctl call to the driver, so certainly inside the serialization lock. In addition, we only trace if the call was successful. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Wade Farnsworth <wade_farnsworth@mentor.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-dev: Add tracepoints for QBUF and DQBUFWade Farnsworth2013-12-101-0/+9
| | | | | | | | | | Add tracepoints to the QBUF and DQBUF ioctls to enable rudimentary performance measurements using standard kernel tracers. [m.chehab@samsung.com: CodingStyle fixes (whitespacing)] Signed-off-by: Wade Farnsworth <wade_farnsworth@mentor.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* Merge branch 'v4l_for_linus' of ↵Linus Torvalds2013-09-051-3/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: "This series contains: - Exynos s5p-mfc driver got support for VP8 encoder - Some SoC drivers gained support for asynchronous registration (needed for DT) - The RC subsystem gained support for RC activity LED; - New drivers added: a video decoder(adv7842), a video encoder (adv7511), a new GSPCA driver (stk1135) and support for Renesas R-Car (vsp1) - the first SDR kernel driver: mirics msi3101. Due to some troubles with the driver, and because the API is still under discussion, it will be merged at staging for 3.12. Need to rework on it - usual new boards additions, fixes, cleanups and driver improvements" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (242 commits) [media] cx88: Fix regression: CX88_AUDIO_WM8775 can't be 0 [media] exynos4-is: Fix entity unregistration on error path [media] exynos-gsc: Register v4l2 device [media] exynos4-is: Fix fimc-lite bayer formats [media] em28xx: fix assignment of the eeprom data [media] hdpvr: fix iteration over uninitialized lists in hdpvr_probe() [media] usbtv: Throw corrupted frames away [media] usbtv: Fix deinterlacing [media] v4l2: added missing mutex.h include to v4l2-ctrls.h [media] DocBook: upgrade media_api DocBook version to 4.2 [media] ml86v7667: fix compile warning: 'ret' set but not used [media] s5p-g2d: Fix registration failure [media] media: coda: Fix DT driver data pointer for i.MX27 [media] s5p-mfc: Fix input/output format reporting [media] v4l: vsp1: Fix mutex double lock at streamon time [media] v4l: vsp1: Add support for RT clock [media] v4l: vsp1: Initialize media device bus_info field [media] davinci: vpif_capture: fix error return code in vpif_probe() [media] davinci: vpif_display: fix error return code in vpif_probe() [media] MAINTAINERS: add entries for adv7511 and adv7842 ...
| * [media] v4l2-dev: Fix race condition on __video_register_deviceRicardo Ribalda2013-08-241-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When 2 devices are registered at the same time, in Part 2 both will get the same minor number, making Part6 crash, because it cannot create a create a device with a duplicated minor: [ 7.157648] ------------[ cut here ]------------ [ 7.157666] WARNING: at fs/sysfs/dir.c:530 sysfs_add_one+0xbd/0xe0() [ 7.157669] sysfs: cannot create duplicate filename '/dev/char/81:1' [ 7.157672] Modules linked in: qtec_xform(+) qt5023_video(+) videobuf2_vmalloc videobuf2_dma_sg videobuf2_memops videobuf2_core gpio_xilinx(+) qtec_white qtec_cmosis(+) qtec_pcie qt5023 [ 7.157694] CPU: 0 PID: 120 Comm: systemd-udevd Not tainted 3.10.0-qtec-standard #8 [ 7.157698] Hardware name: QTechnology QT5022/QT5022, BIOS PM_2.1.0.309 X64 05/23/2013 [ 7.157702] 0000000000000009 ffff8801788358e8 ffffffff8176c487 ffff880178835928 [ 7.157707] ffffffff8106f6f0 ffff880175759770 00000000ffffffef ffff880175759930 [ 7.157712] ffff8801788359e8 ffff880178bff000 ffff880175759930 ffff880178835988 [ 7.157718] Call Trace: [ 7.157728] [<ffffffff8176c487>] dump_stack+0x19/0x1b [ 7.157735] [<ffffffff8106f6f0>] warn_slowpath_common+0x70/0xa0 [ 7.157740] [<ffffffff8106f7d6>] warn_slowpath_fmt+0x46/0x50 [ 7.157746] [<ffffffff81324b35>] ? strlcat+0x65/0x90 [ 7.157750] [<ffffffff811d516d>] sysfs_add_one+0xbd/0xe0 [ 7.157755] [<ffffffff811d5c6b>] sysfs_do_create_link_sd+0xdb/0x200 [ 7.157760] [<ffffffff811d5db1>] sysfs_create_link+0x21/0x40 [ 7.157765] [<ffffffff813e277b>] device_add+0x21b/0x6d0 [ 7.157772] [<ffffffff813f2985>] ? pm_runtime_init+0xe5/0xf0 [ 7.157776] [<ffffffff813e2c4e>] device_register+0x1e/0x30 [ 7.157782] [<ffffffff8153e8c3>] __video_register_device+0x313/0x610 [ 7.157791] [<ffffffffa00957c5>] qtec_xform_probe+0x465/0x7a4 [qtec_xform] [ 7.157797] [<ffffffff813e7b13>] platform_drv_probe+0x43/0x80 [ 7.157802] [<ffffffff813e531a>] ? driver_sysfs_add+0x7a/0xb0 [ 7.157807] [<ffffffff813e584b>] driver_probe_device+0x8b/0x3a0 [ 7.157812] [<ffffffff813e5c0b>] __driver_attach+0xab/0xb0 [ 7.157816] [<ffffffff813e5b60>] ? driver_probe_device+0x3a0/0x3a0 [ 7.157820] [<ffffffff813e37fd>] bus_for_each_dev+0x5d/0xa0 [ 7.157825] [<ffffffff813e529e>] driver_attach+0x1e/0x20 [ 7.157829] [<ffffffff813e4d3e>] bus_add_driver+0x10e/0x280 [ 7.157833] [<ffffffffa0099000>] ? 0xffffffffa0098fff [ 7.157837] [<ffffffffa0099000>] ? 0xffffffffa0098fff [ 7.157842] [<ffffffff813e6317>] driver_register+0x77/0x170 [ 7.157848] [<ffffffff81151bcc>] ? __vunmap+0x9c/0x110 [ 7.157852] [<ffffffffa0099000>] ? 0xffffffffa0098fff [ 7.157857] [<ffffffff813e7236>] platform_driver_register+0x46/0x50 [ 7.157863] [<ffffffffa0099010>] qtec_xform_plat_driver_init+0x10/0x12 [qtec_xform] [ 7.157869] [<ffffffff810002ea>] do_one_initcall+0xea/0x1a0 [ 7.157875] [<ffffffff810cf1f1>] load_module+0x1a91/0x2630 [ 7.157880] [<ffffffff8133bee0>] ? ddebug_proc_show+0xe0/0xe0 [ 7.157887] [<ffffffff817760f2>] ? page_fault+0x22/0x30 [ 7.157892] [<ffffffff810cfe7a>] SyS_init_module+0xea/0x140 [ 7.157898] [<ffffffff8177e5b9>] tracesys+0xd0/0xd5 [ 7.157902] ---[ end trace 660cc3a65a4bf01b ]--- [ 7.157939] __video_register_device: device_register failed Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-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>
* | v4l2: convert class code to use dev_groupsGreg Kroah-Hartman2013-08-191-13/+17
|/ | | | | | | | | | The dev_attrs field of struct class is going away soon, dev_groups should be used instead. This converts the v4l2 class code to use the correct field. Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* [media] v4l2: always require v4l2_dev, rename parent to dev_parentHans Verkuil2013-06-211-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | The last set of drivers still using the parent field of video_device instead of the v4l2_dev field have been converted, so v4l2_dev is now always set. A proper pointer to v4l2_dev is necessary these days otherwise the advanced debugging ioctls will not work when addressing sub-devices. It also ensures that the core can always go from a video_device struct to the top-level v4l2_device struct. There is still one single use case for the parent pointer: if there are multiple busses, each being the parent of one or more video nodes, and if they all share the same v4l2_device struct. In that case one still needs a parent pointer since the v4l2_device struct can only refer to a single parent device. The cx88 driver is one such case. Unfortunately, the cx88 failed to set the parent pointer since 3.6. The next patch will correct this. In order to support this use-case the parent pointer is only renamed to dev_parent, not removed altogether. It has been renamed to ensure that the compiler will catch any (possibly out-of-tree) drivers that were missed during the conversion. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-core: remove support for obsolete VIDIOC_DBG_G_CHIP_IDENTHans Verkuil2013-06-211-1/+0
| | | | | | | This has been replaced by the new and much better VIDIOC_DBG_G_CHIP_INFO. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: remove deprecated current_norm support completelyHans Verkuil2013-06-171-3/+2
| | | | | | | | | | | | | | | | | The use of current_norm to keep track of the current standard has been deprecated for quite some time. Now that all drivers that were using it have been converted to use g_std we can drop it from the core. It was a bad idea to introduce this at the time: since it is a per-device node field it didn't work for drivers that create multiple nodes, all sharing the same tuner (e.g. video and vbi nodes, or a raw video node and a compressed video node). In addition it was very surprising behavior that g_std was implemented in the core. Often drivers implemented both g_std and current_norm, because they didn't understand how it should be used. Since the benefits were very limited (if they were there at all), it is better to just drop it and require that drivers just implement g_std. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: rename VIDIOC_DBG_G_CHIP_NAME to _CHIP_INFOHans Verkuil2013-04-141-1/+1
| | | | | | | This ioctl will be extended to return more information than just the name. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: put VIDIOC_DBG_G_CHIP_NAME under ADV_DEBUGHans Verkuil2013-04-141-1/+1
| | | | | | | | | | Only enable this ioctl if the VIDEO_ADV_DEBUG config option is set. This prevents abuse from both userspace and kernelspace (some bridge drivers abuse DBG_G_CHIP_IDENT, lets prevent that from happening again with this ioctl). Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: add new VIDIOC_DBG_G_CHIP_NAME ioctlHans Verkuil2013-03-251-2/+3
| | | | | | | | | | | | | Simplify the debugging ioctls by creating the VIDIOC_DBG_G_CHIP_NAME ioctl. This will eventually replace VIDIOC_DBG_G_CHIP_IDENT. Chip matching is done by the name or index of subdevices or an index to a bridge chip. Most of this can all be done automatically, so most drivers just need to provide get/set register ops. In particular, it is now possible to get/set subdev registers without requiring assistance of the bridge driver. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2 core: remove the obsolete dv_preset supportHans Verkuil2013-03-241-4/+0
| | | | | | | | These ioctls are no longer used by any drivers, so remove them. [mchehab@redhat.com: Fix merge conflict] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2013-02-261-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile (part one) from Al Viro: "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent locking violations, etc. The most visible changes here are death of FS_REVAL_DOT (replaced with "has ->d_weak_revalidate()") and a new helper getting from struct file to inode. Some bits of preparation to xattr method interface changes. Misc patches by various people sent this cycle *and* ocfs2 fixes from several cycles ago that should've been upstream right then. PS: the next vfs pile will be xattr stuff." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits) saner proc_get_inode() calling conventions proc: avoid extra pde_put() in proc_fill_super() fs: change return values from -EACCES to -EPERM fs/exec.c: make bprm_mm_init() static ocfs2/dlm: use GFP_ATOMIC inside a spin_lock ocfs2: fix possible use-after-free with AIO ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero target: writev() on single-element vector is pointless export kernel_write(), convert open-coded instances fs: encode_fh: return FILEID_INVALID if invalid fid_type kill f_vfsmnt vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op nfsd: handle vfs_getattr errors in acl protocol switch vfs_getattr() to struct path default SET_PERSONALITY() in linux/elf.h ceph: prepopulate inodes only when request is aborted d_hash_and_lookup(): export, switch open-coded instances 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 9p: split dropping the acls from v9fs_set_create_acl() ...
| * new helper: file_inode(file)Al Viro2013-02-221-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | [media] v4l2-core: do not enable the buffer ioctls for radio devicesFrank Schaefer2013-02-061-7/+7
|/ | | | | | | | | | | The buffer ioctls (VIDIOC_REQBUFS, VIDIOC_QUERYBUF, VIDIOC_QBUF, VIDIOC_DQBUF, VIDIOC_EXPBUF, VIDIOC_CREATE_BUFS, VIDIOC_PREPARE_BUF) are not applicable for radio devices. Hence, they should be set valid only for non-radio devices in determine_valid_ioctls(). Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: add buffer exporting via dmabufTomasz Stanislawski2012-11-251-0/+1
| | | | | | | | | | | This patch adds extension to V4L2 api. A new ioctl VIDIOC_EXPBUF is added. The ioctl is used to export an mmap buffer as a DMABUF file descriptor. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-dev: reorder checks into blocks of ioctls with similar propertiesHans Verkuil2012-09-261-82/+74
| | | | | | | | This makes it easier to read and also ties in more closely with the profile concept. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-dev: improve ioctl validity checksHans Verkuil2012-09-261-95/+133
| | | | | | | | | | | The ioctl validity checks have been improved and now take vfl_type and vfl_dir into account. During the 2012 Media Workshop it was decided that these improved v4l2 core checks should be added as they simplified drivers and made drivers behave consistently. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-core: tvnorms may be 0 for a given input, handle that caseHans Verkuil2012-09-261-2/+2
| | | | | | | | | | | | | | | | Currently the core code looks at tvnorms to see whether ENUMSTD or G_PARM should be enabled. This is not a good check for drivers that support the STD API on one input and the DV Timings API on another. In that case tvnorms may be 0. Instead check whether s_std is present (for ENUMSTD) or whether g_std or current_norm is present for g_parm. Also, in the enumstd core function return ENODATA if tvnorms is 0, because in that case the current input does not support the STD API and ENUMSTD should return ENODATA for that. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-core: deprecate V4L2_BUF_TYPE_PRIVATEHans Verkuil2012-09-261-8/+4
| | | | | | | | | | This buffer type isn't used at all, and since it is effectively undefined what it should do it is deprecated. The define still exists, but any internal support for such buffers is removed. The decisions to deprecate this was taken during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: move v4l2 core into a separate directoryMauro Carvalho Chehab2012-08-131-0/+1003
Currently, the v4l2 core is mixed together with other non-core drivers. Move them into a separate directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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