- 08 Apr, 2015 33 commits
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KyongHo Cho authored
The slab for vm_area_struct which is vm_area_cachep is already prepared for the general use. Instead of kmalloc() for the vma copy for userptr, allocation from vm_area_cachep is more beneficial. CC: Hans Verkuil <hans.verkuil@cisco.com> CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Cho KyongHo <pullip.cho@samsung.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Sifan Naeem authored
Gets a handle to the system clock, already described in the binding document, and calls the appropriate common clock framework functions to mark it prepared/enabled, the common clock framework initially enables the clock and doesn't disable it at least until the device/driver is removed. It's important the systen clock is enabled before register interface is accessed by the driver. The system clock to IR is needed for the driver to communicate with the IR hardware via MMIO accesses on the system bus, so it must not be disabled during use or the driver will malfunction. Signed-off-by:
Sifan Naeem <sifan.naeem@imgtec.com> Acked-by:
James Hogan <james.hogan@imgtec.com> Signed-off-by:
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Markus Elfring authored
The functions "dvb_unregister_device" and "kfree" could still be called by the dvb_ca_en50221_init() function in the case that a previous resource allocation failed. * Corresponding details could be improved by adjustments for jump targets. * Let us delete also an unnecessary check for the variable "ca" there. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
The dvb_unregister_device() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Luis de Bethencourt authored
Fixing a few checkpatch errors of type: space required after that ',' Signed-off-by:
Luis de Bethencourt <luis.bg@samsung.com> Signed-off-by:
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Markus Elfring authored
The media_entity_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The kfree() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Benjamin Larsson authored
Signed-off-by:
Benjamin Larsson <benjamin@southpole.se> Signed-off-by:
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Benjamin Larsson authored
Signed-off-by:
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Benjamin Larsson authored
Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Hans Verkuil authored
Embed the video_device struct to simplify the error handling and in order to (eventually) get rid of video_device_alloc/release. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Hans Verkuil authored
Embed the video_device struct to simplify the error handling and in order to (eventually) get rid of video_device_alloc/release. Signed-off-by:
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Hans Verkuil authored
Embed the video_device struct to simplify the error handling and in order to (eventually) get rid of video_device_alloc/release. Signed-off-by:
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Hans Verkuil authored
Embed the video_device struct to simplify the error handling and in order to (eventually) get rid of video_device_alloc/release. Signed-off-by:
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Hans Verkuil authored
Signed-off-by:
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Hans Verkuil authored
The std field of v4l2_input is always V4L2_STD_ALL. For tuner inputs this should be cx->tuner_std. This fixes a v4l2-compliance failure. Signed-off-by:
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Hans Verkuil authored
v4l2-compliance failed due to missing control event support in cx18. Add this to the driver. Signed-off-by:
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Uwe Kleine-König authored
Since 39b2bbe3 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output. Simplify accordingly. Moreover use the _optional variant which has tighter error checking, but is simpler to use which allows further simplification. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
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Hans Verkuil authored
Don't rely on V4L2_DV_BT_STD_CEA861 since that include the 640x480p format, which is an IT format, not CE. Signed-off-by:
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Hans Verkuil authored
Don't rely on V4L2_DV_BT_STD_CEA861 since that include the 640x480p format, which is an IT format, not CE. Signed-off-by:
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Hans Verkuil authored
Document this new flag. Signed-off-by:
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Hans Verkuil authored
Add support for the new flag to v4l2_print_dv_timings(). Signed-off-by:
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Hans Verkuil authored
In the past the V4L2_DV_BT_STD_CEA861 standard bit was used to determine whether the format is a CE (Consumer Electronics) format or not. However, the 640x480p59.94 format is part of the CEA-861 standard, but it is *not* a CE video format. Add a new flag to make this explicit. This information is needed in order to determine the default R'G'B' encoding for the format: for CE video this is limited range (16-235) instead of full range (0-255). The header with all the timings has been updated with this new flag. Signed-off-by:
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Ricardo Ribalda authored
Document new flag V4L2_CTRL_FLAG_EXECUTE_ON_WRITE, and the new behavior of CH_VALUE event on VOLATILE controls. Signed-off-by:
Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by:
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Ricardo Ribalda authored
Any control with V4L2_CTRL_FLAG_EXECUTE_ON_WRITE set should return changed == true in cluster_changed. This forces the value to be passed to the driver even if it has not changed. Signed-off-by:
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Ricardo Ribalda authored
Any control that sets FLAG_WRITE_ONLY should OR it with FLAG_EXECUTE_ON_WRITE. So we can keep the current meaning of WRITE_ONLY. Signed-off-by:
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Ricardo Ribalda authored
Create a new flag that represent controls which its value needs to be passed to the driver even if it has not changed. They typically represent actions, like triggering a flash or clearing an error flag. So writing to such a control means some action is executed. Signed-off-by:
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Ricardo Ribalda authored
Volatile controls should not generate CH_VALUE events. Set has_changed to false to prevent this happening. Signed-off-by:
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Prashant Laddha authored
In addition to v4l2_find_dv_timings_cap(), where timings are searched against the list of preset timings, the incoming timing from v4l2-ctl is checked against CVT and GTF standards. If it confirms to be CVT or GTF, it is treated as valid timing and vivid format is updated with new timings. Signed-off-by:
Prashant Laddha <prladdha@cisco.com> Signed-off-by:
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Prashant Laddha authored
Currently vivid supports V4L2_DV_BT_STD_DMT and V4L2_DV_BT_STD_CEA861 discrete video standards. Extending the capability set to allow for setting CVT and GTF standards. This change, along with adding the support for calculating CVT, GTF timings in v4l2-ctl would extend the number of resolutions supported by vivid to almost any custom resolution. Also extending the limits on min and max pixel clock to accommodate pixel clock range provided by cvt/gtf for resolutions ranging from 640x360p50 to 4kx2Kp60. Signed-off-by:
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Hans Verkuil authored
Needed for mips and sh platforms Signed-off-by:
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Florian Echtler authored
This patch fixes a kernel panic which occurs when buf_list is empty. This can happen occasionally when user space is under heavy load (e.g. due to image processing on the CPU) and new buffers aren't re-queued fast enough. In that case, vb2_start_streaming_called can return true, but when the spinlock is taken and sur40_poll attempts to fetch the next buffer from buf_list, the list is in fact empty. This patch needs to be applied on top of the queued one adding V4L2 support to the sur40 driver. Signed-off-by:
Florian Echtler <floe@butterbrot.org> Signed-off-by:
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David Howells authored
The slock spinlock in the cx23885_dev struct is only initialised if analogue video is being used, but is used in other places too, leading to the attached lockdep complaint. Move the lock initialisation so that it is done unconditionally. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 4413 Comm: scandvb Tainted: G W 4.0.0-rc1-fsdevel+ #25 Hardware name: System manufacturer System Product Name/P5Q PRO TURBO, BIOS 0701 10/08/2012 0000000000000000 ffff880129d779d8 ffffffff8162bbdf 0000000000000006 0000000000000000 ffff880129d77aa8 ffffffff810780e3 0000000000000001 0000000000000046 0000000000000004 ffffffff81c3f180 0000000000000000 Call Trace: [<ffffffff8162bbdf>] dump_stack+0x4c/0x65 [<ffffffff810780e3>] __lock_acquire+0x7b5/0x1a0e [<ffffffff810799ee>] lock_acquire+0x97/0x10c [<ffffffffa006494e>] ? cx23885_buf_queue+0x69/0x142 [cx23885] [<ffffffff8102e9bc>] ? amd_set_subcaches+0x19b/0x19b [<ffffffff816313b4>] _raw_spin_lock_irqsave+0x36/0x4a [<ffffffffa006494e>] ? cx23885_buf_queue+0x69/0x142 [cx23885] [<ffffffffa006494e>] cx23885_buf_queue+0x69/0x142 [cx23885] [<ffffffffa00662cb>] buffer_queue+0x17/0x19 [cx23885] [<ffffffffa00382d5>] __enqueue_in_driver+0x6a/0x6f [videobuf2_core] [<ffffffffa0038ead>] vb2_start_streaming+0x37/0x129 [videobuf2_core] [<ffffffffa003a6c0>] vb2_internal_streamon+0xc5/0x105 [videobuf2_core] [<ffffffffa003b889>] __vb2_init_fileio+0x224/0x286 [videobuf2_core] [<ffffffffa003bcc0>] ? vb2_thread_start+0x7b/0x15f [videobuf2_core] [<ffffffffa0050182>] ? vb2_dvb_start_feed+0x86/0x86 [videobuf2_dvb] [<ffffffffa003bd06>] vb2_thread_start+0xc1/0x15f [videobuf2_core] [<ffffffff8150d393>] ? dmx_section_feed_start_filtering+0x2f/0x14f [<ffffffffa0050157>] vb2_dvb_start_feed+0x5b/0x86 [videobuf2_dvb] [<ffffffff8150d461>] dmx_section_feed_start_filtering+0xfd/0x14f [<ffffffff8150afc7>] dvb_dmxdev_filter_start+0x23f/0x315 [<ffffffff8150b6ad>] dvb_demux_do_ioctl+0x1fb/0x556 [<ffffffff81509e94>] dvb_usercopy+0xb4/0x11c [<ffffffff8150b4b2>] ? dvb_dmxdev_ts_callback+0xd0/0xd0 [<ffffffff8150a11a>] dvb_demux_ioctl+0x10/0x14 [<ffffffff81144ac4>] do_vfs_ioctl+0x3c1/0x474 [<ffffffff8126f181>] ? file_has_perm+0x5b/0x7f [<ffffffff810bf6ca>] ? __audit_syscall_entry+0xbc/0xde [<ffffffff81144bcc>] SyS_ioctl+0x55/0x7a [<ffffffff81631d52>] system_call_fastpath+0x12/0x17 Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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- 07 Apr, 2015 4 commits
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Rickard Strandqvist authored
Removes some functions that are not used anywhere: s5p_jpeg_input_raw_y16() s5p_jpeg_timer_disable() s5p_jpeg_timer_enable(). This was partially found by using a static code analysis program called cppcheck. Signed-off-by:
Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
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Jacek Anaszewski authored
JPEG codecs on Exynos4 and Exynos3250 SoCs utilize different number of planes for storing the raw image data, depending on the format of the image being processed. For the unused planes a random data was being written to the related registers. Regardless of the fact that this seemed not to be harmful, fix the issue for clarity reasons. Reported-by:
Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by:
Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by:
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Andrzej Pietrasiewicz authored
JPEG IP found in Exynos5420 is similar to what is in Exynos3250, but there are some subtle differences which this patch takes into account. Signed-off-by:
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Hans Verkuil authored
Remove target from Makefile: this driver no longer exists. Signed-off-by:
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- 03 Apr, 2015 3 commits
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Laurent Pinchart authored
The TPG generates multiple static or dynamic test patterns. The driver currently hardcodes the pattern to the moving box pattern. Signed-off-by:
Christian Kohn <christian.kohn@xilinx.com> Signed-off-by:
Hyun Kwon <hyun.kwon@xilinx.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Acked-by:
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Laurent Pinchart authored
The Video Timing Controller (VTC) includes a timing detector and/or a timing generator. Only the generator is currently supported. Signed-off-by:
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Laurent Pinchart authored
Xilinx platforms have no hardwired video capture or video processing interface. Users create capture and memory to memory processing pipelines in the FPGA fabric to suit their particular needs, by instantiating video IP cores from a large library. The Xilinx Video IP core is a framework that models a video pipeline described in the device tree and expose the pipeline to userspace through the media controller and V4L2 APIs. Signed-off-by:
Radhey Shyam Pandey <radheys@xilinx.com> Signed-off-by:
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