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path: root/drivers/media/platform/mem2mem_testdev.c
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* [media] vb2: stop_streaming should return voidHans Verkuil2014-04-23
| | | | | | | | | | | | | | | | | | | | | | | | The vb2 core ignores any return code from the stop_streaming op. And there really isn't anything it can do anyway in case of an error. So change the return type to void and update any drivers that implement it. The int return gave drivers the idea that this operation could actually fail, but that's really not the case. The pwc amd sdr-msi3101 drivers both had this construction: if (mutex_lock_interruptible(&s->v4l2_lock)) return -ERESTARTSYS; This has been updated to just call mutex_lock(). The stop_streaming op expects this to really stop streaming and I very much doubt this will work reliably if stop_streaming just returns without really stopping the DMA. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Pawel Osciak <pawel@osciak.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: improve field handlingHans Verkuil2014-03-11
| | | | | | | | | | | | | try_fmt should just set field to NONE and not return an error if a different field was passed. buf_prepare should check if the field passed in from userspace has a supported field value. At the moment only NONE is supported and ANY is mapped to NONE. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: fix field, sequence and time copyingHans Verkuil2014-03-11
| | | | | | | | | | - Set the sequence counters correctly. - Copy timestamps, timecode, relevant buffer flags and field from the received buffer to the outgoing buffer. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: return pending buffers in stop_streaming()Hans Verkuil2014-03-11
| | | | | | | | | To keep the vb2 buffer administration in balance stop_streaming() must return any pending buffers to the vb2 framework. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: add USERPTR supportHans Verkuil2014-03-11
| | | | | | | | There is no reason why we shouldn't enable this here. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: set priv to 0Hans Verkuil2014-03-11
| | | | | | | | v4l2_compliance fix. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: pick default format with try_fmtHans Verkuil2014-03-11
| | | | | | | | | | | | This resolves an issue raised by v4l2-compliance: if the given format does not exist, then pick a default format. While there is an exception regarding this for TV capture drivers, this m2m driver should do the right thing. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: use 40ms default transfer timeHans Verkuil2014-03-11
| | | | | | | | The default of 1 second is a bit painful, switch to a 25 Hz framerate. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: Copy timestamp source flags to destination on m2m devicesSakari Ailus2014-03-05
| | | | | | | | | | Copy the flags containing the timestamp source from source buffer flags to the destination buffer flags on memory-to-memory devices. This is analogous to copying the timestamp field from source to destination. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: Rename vb2_queue.timestamp_type as timestamp_flagsSakari Ailus2014-03-05
| | | | | | | | | | | The timestamp_type field used to contain only the timestamp type. Soon it will be used for timestamp source flags as well. Rename the field accordingly. [m.chehab@samsung.com: do the change also to drivers/staging/media and at s2255] Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem_testdev: Use mem-to-mem ioctl and vb2 helpersSylwester Nawrocki2013-12-04
| | | | | | | | | | Simplify the driver by using the m2m ioctl and vb2 helpers. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Remove casting the return value which is a void pointerJingoo Han2013-10-28
| | | | | | | | | | Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] mem2mem: set missing v4l2_dev pointerHans Verkuil2013-06-28
| | | | | | | | | | The m2m-deinterlace, mem2mem_testdev and mx2_emmaprp drivers didn't set the v4l2_dev pointer in struct video_device, even though a v4l2_device was registered correctly. These days this v4l2_dev pointer must be set correctly, so this patch adds that for these three drivers. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: set timestamp_type and add debug paramHans Verkuil2013-04-25
| | | | | | | | | | While testing v4l2-ctl I noticed that this m2m driver didn't set timestamp_type and that it spammed the kernel log with debug messages. Set timestamp_type correctly and add debug module option to enable debug messages. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: mem2mem_testdev: add support for dmabuf importingTomasz Stanislawski2012-11-25
| | | | | | | | This patch enhances mem2mem_testdev device with support for DMABUF importing via V4L2_MEMORY_DMABUF memory type. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Use devm_kzalloc() in probeSachin Kamat2012-10-06
| | | | | | | | devm_kzalloc() makes error handling and cleanup simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Use pr_err instead of printkSachin Kamat2012-10-06
| | | | | | | | | | printk(KERN_ERR...) is replaced with pr_err to silence checkpatch warning. WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Add missing braces around sizeofSachin Kamat2012-10-06
| | | | | | | | | Fixes the following checkpatch warnings: WARNING: sizeof *ctx should be sizeof(*ctx) WARNING: sizeof *dev should be sizeof(*dev) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Fix incorrect location of v4l2_m2m_release()Sachin Kamat2012-10-06
| | | | | | | | | | v4l2_m2m_release() was placed after the return statement and outside any of the goto labels and hence was not getting executed under the error exit path. This patch moves it under the exit path label. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] Set vfl_dir for all display or m2m driversHans Verkuil2012-09-26
| | | | | | | Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] vivi/mem2mem_testdev: update to latest bus_info specificationHans Verkuil2012-09-26
| | | | | | | | | Prefix bus_info with "platform:". Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Make m2mtest_dev_release function staticSachin Kamat2012-09-15
| | | | | | | | | Fixes the following warning: drivers/media/platform/mem2mem_testdev.c:73:6: warning: symbol 'm2mtest_dev_release' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mem2mem_testdev: Remove unneeded struct vb2_queue clear on queue_init()Ezequiel García2012-09-15
| | | | | | | | | queue_init() is always called by v4l2_m2m_ctx_init(), which allocates a context struct v4l2_m2m_ctx with kzalloc. Therefore, there is no need to clear vb2_queue src/dst structs. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Merge tag 'v3.6-rc3' into staging/for_v3.7Mauro Carvalho Chehab2012-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 3.6-rc3 * tag 'v3.6-rc3': (764 commits) Linux 3.6-rc3 task_work: add a scheduling point in task_work_run() fs: fix fs/namei.c kernel-doc warnings eventpoll: use-after-possible-free in epoll_create1() vfio: grab vfio_device reference *before* exposing the sucker via fd_install() vfio: get rid of vfio_device_put()/vfio_group_get_device* races vfio: get rid of open-coding kref_put_mutex introduce kref_put_mutex() vfio: don't dereference after kfree... fbcon: fix race condition between console lock and cursor timer (v1.1) mm: compaction: Abort async compaction if locks are contended or taking too long mm: have order > 0 compaction start near a pageblock with free pages rapidio/tsi721: fix unused variable compiler warning rapidio/tsi721: fix inbound doorbell interrupt handling drivers/rtc/rtc-rs5c348.c: fix hour decoding in 12-hour mode mm: correct page->pfmemalloc to fix deactivate_slab regression drivers/rtc/rtc-pcf2123.c: initialize dynamic sysfs attributes mm/compaction.c: fix deferring compaction mistake drivers/misc/sgi-xp/xpc_uv.c: SGI XPC fails to load when cpu 0 is out of IRQ resources string: do not export memweight() to userspace ...
* [media] mem2mem_testdev: unlock and return error code properlyDan Carpenter2012-08-15
| | | | | | | | | We recently added locking to this function, but there was an error path which accidentally returned holding a lock. Also we returned zero on failure on some paths instead of the error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] rename drivers/media/video as .../platformMauro Carvalho Chehab2012-08-15
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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