- 19 Nov, 2015 5 commits
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Mikhail Ulyanov authored
Remove redundant code. Following code line do what we want. [mchehab@osg.samsung.com: fix conflict with VB2 split patches that renamed some structs] Signed-off-by:
Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Mauro Carvalho Chehab authored
It is possible to use: make DOCBOOKS=device-drivers.xml htmldocs To produce just a few docbooks. In such case, the media docs won't be built, causing the makefile target to return an error. While this is ok for human eyes, if the above is used on an script, it would cause troubles. Fix it by only creating/filling the media_api directory if the media_api.xml is found at DOCBOOKS. Signed-off-by: -
Eric Nelson authored
Many decoders require a trailing space (period without IR illumination) to be delivered before completing a decode. Since the gpio-ir-recv driver only delivers events on gpio transitions, a single IR symbol (caused by a quick touch on an IR remote) will not be properly decoded without the use of a timer to flush the tail end state of the IR receiver. This patch initializes and uses a timer and the timeout field of rcdev to complete the stream and allow decode. The timeout can be overridden through the use of the LIRC_SET_REC_TIMEOUT ioctl. Signed-off-by:
Eric Nelson <eric@nelint.com> Acked-by:
Sean Young <sean@mess.org> Signed-off-by:
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Eric Nelson authored
A default timeout value of 125 ms should work for all decoders. Declare a constant to help standardize its' use. Signed-off-by:
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Sudeep Holla authored
The device is set as wakeup capable using proper wakeup API but the driver misuses IRQF_NO_SUSPEND to set the interrupt as wakeup source which is incorrect. This patch removes the use of IRQF_NO_SUSPEND flags replacing it with enable_irq_wake instead. Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com> Cc: Maxime Coquelin <maxime.coquelin@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: linux-arm-kernel@lists.infradead.org Cc: kernel@stlinux.com Signed-off-by:
Sudeep Holla <sudeep.holla@arm.com> Signed-off-by:
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- 18 Nov, 2015 8 commits
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Mauro Carvalho Chehab authored
commit f934a94b ('s5c73m3: Export OF module alias information') broke compilation when compiled as module: In file included from drivers/media/i2c/s5c73m3/s5c73m3-spi.c:22:0: drivers/media/i2c/s5c73m3/s5c73m3-spi.c:40:40: error: expected ')' before ';' token MODULE_DEVICE_TABLE(of, s5c73m3_spi_ids;); ^ Fix it by removing the extra ';' Signed-off-by:
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Peter Griffin authored
Signed-off-by:
Peter Griffin <peter.griffin@linaro.org> Acked-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Peter Griffin authored
reset-gpios is more clear than rst-gpio. This change has been done as one atomic commit but it does breaks compatability with older dtbs. Signed-off-by:
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Peter Griffin authored
This patch adds in the required DT node for the c8sectpfe Linux DVB demux driver which allows the tsin channels to be used on an upstream kernel. Signed-off-by:
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Peter Griffin authored
Adding these properties makes the I2C bus to the demodulators much more reliable, and we no longer suffer from I2C errors when tuning. Signed-off-by:
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Malcolm Priestley authored
When in FE_TUNE_MODE_ONESHOT the frontend must report the actual capabilities so user can take appropriate action. With frontends that can't do auto inversion this is done by dvb-core automatically so CAN_INVERSION_AUTO is valid. However, when in FE_TUNE_MODE_ONESHOT this is not true. So only set FE_CAN_INVERSION_AUTO in modes other than FE_TUNE_MODE_ONESHOT Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Javier Martinez Canillas authored
The SPI core always reports the MODALIAS uevent as "spi:<modalias>" regardless of the mechanism that was used to register the device (i.e: OF or board code) and the table that is used later to match the driver with the device (i.e: SPI id table or OF match table). So drivers needs to export the SPI id table and this be built into the module or udev won't have the necessary information to autoload the needed driver module when the device is added. But this means that OF-only drivers needs to have both OF and SPI id tables that have to be kept in sync and also the dev node compatible manufacturer prefix is stripped when reporting the MODALIAS. Which can lead to issues if two vendors use the same SPI device name for example. To avoid the above, the SPI core behavior may be changed in the future to not require an SPI device table for OF-only drivers and report the OF module alias. So, it's better to also export the OF table even when is unused now to prevent breaking module loading when the core changes. Signed-off-by:
Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by:
Andrzej Hajda <a.hajda@samsung.com> Signed-off-by:
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Nicholas Mc Guire authored
API conformance testing for completions with coccinelle spatches are being used to locate API usage inconsistencies: ./drivers/media/pci/ddbridge/ddbridge-core.c:89 incorrect check for negative return Return type of wait_event_timeout is signed long not int and the return type is >=0 always thus the negative check is unnecessary.. As stat is used here exclusively its type is simply changed and the negative return check dropped. Signed-off-by:Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by:
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- 17 Nov, 2015 27 commits
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Julia Lawall authored
These v4l2_ctrl_ops structures are never modified, like all the other v4l2_ctrl_ops structures, so declare them as const. Done with the help of Coccinelle. Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Josh Wu authored
This patch enable Atmel ISI preview path to convert the YUV to RGB format. Signed-off-by:
Josh Wu <josh.wu@atmel.com> [g.liakhovetski@gmx.de: removed superfluous parentheses] Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Josh Wu authored
The preview path only can convert UYVY format to RGB data. To make preview path work correctly, we need to set up YCC_SWAP according to sensor output and convert them to UYVY. Signed-off-by:
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Josh Wu authored
Not like codec path, preview path can do downsampling, so we should setup a extra preview width, height for it. This patch add preview resolution setup without down sampling. So currently preview path will output same size as sensor output size. Signed-off-by:
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Josh Wu authored
Atmel ISI support a preview path which can output RGB data. So this patch introduces a bool variable to choose which path is enabled currently. And also we need setup corresponding path registers. By default the preview path is disabled. We only use Codec path. Signed-off-by:
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Josh Wu authored
we need to configure the YCC_SWAP bits in ISI_CFG2 according to current sensor output and Atmel ISI output format. Current there are two cases Atmel ISI supported: 1. Atmel ISI outputs YUYV format. This case we need to setup YCC_SWAP according to sensor output format. 2. Atmel ISI output a pass-through formats, which means no swap. Just setup YCC_SWAP as default with no swap. Signed-off-by: -
Josh Wu authored
The soc-camera host will be probed and register a v4l2_clk, but if at that moment, the i2c device is not available, then the registered v4l2_clk name is an OF string not a I2C string. So when i2c sensor probes and calls v4l2_clk_get(), it only searches a clock with I2C string, like "1-0030". This patch will search the clock with OF string name if no clock with I2C string name could be found. Signed-off-by:
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Josh Wu authored
Make all v4l2-clk's clock name use V4L2_CLK_NAME_SIZE definition. In future, if the string is increased we just need to change the V4L2_CLK_NAME_SIZE once. Signed-off-by:
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Josh Wu authored
This macro is used to generate an OF string for a v4l2 clock. Signed-off-by:
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Josh Wu authored
Since v4l2_clk_name_i2c() is defined, reuse it. Signed-off-by:
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Prashant Laddha authored
With this patch, vivid capture thread can now generate a video with frame rate reduced by a factor of 1000 / 1001. This option can be selected using a control Reduced Framerate from gui. Signed-off-by:
Prashant Laddha <prladdha@cisco.com> Signed-off-by:
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Prashant Laddha authored
A boolean control Reduced Framerate is added to vivid controls for controlling the reduced fps option for vivid capture from gui. Signed-off-by:
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Prashant Laddha authored
If reduced fps flag is set then check if other necessary conditions are true for the given bt timing. If yes, then reduce the frame rate. For vivid transmitter, timeperframe_vid_out controls the frame rate. Adjusting the timeperframe_vid_out by scaling down pixel clock by factor of 1000 / 1001. Signed-off-by:
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Prashant Laddha authored
Added a helper function to check necessary conditions required for reduced fps. The reduced fps is supported for CVT and CEA861 timings. CVT supports reduced fps only if reduced blanking v2 (indicated by vsync = 8) is true. Whereas CEA861 supports reduced fps if V4L2_DV_FL_CAN_REDUCE_FPS flag is true. Signed-off-by:
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Tommi Franttila authored
When a V4L2 sub-device backed by a DT or ACPI based device was removed, the device was unregistered as well which certainly was not intentional, as the client device would not be re-created by simply reinstating the V4L2 sub-device (indeed the device would have to be there first!). Skip unregistering the device in case it has non-NULL of_node or fwnode. Signed-off-by:
Tommi Franttila <tommi.franttila@intel.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Ulrich Hecht authored
Initialization of the ADV7180 chip fails on the Renesas R8A7790-based Lager board about 50% of the time. This patch resolves the issue by increasing the minimum delay after reset from 2 ms to 5 ms, following the recommendation in the ADV7180 datasheet: "Executing a software reset takes approximately 2 ms. However, it is recommended to wait 5 ms before any further I2C writes are performed." Signed-off-by:
Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
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Oliver Neukum authored
This fixes the crash reported in: http://seclists.org/bugtraq/2015/Oct/35 The interface number needs a sanity check. Signed-off-by:
Oliver Neukum <oneukum@suse.com> Cc: Vladis Dronov <vdronov@redhat.com> Signed-off-by:
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Arnd Bergmann authored
The sh-vou driver has been converted from videobuf to videobuf2, but the Kconfig file still lists VIDEOBUF_DMA_CONTIG as a dependency. Consequently we can build the driver without VIDEOBUF2_DMA_CONTIG and get a link error: drivers/built-in.o: In function `sh_vou_probe': vf610-ocotp.c:(.text+0x2dbf5c): undefined reference to `vb2_dma_contig_init_ctx' vf610-ocotp.c:(.text+0x2dc0b4): undefined reference to `vb2_dma_contig_cleanup_ctx' vf610-ocotp.c:(.text+0x2dc144): undefined reference to `vb2_dma_contig_memops' drivers/built-in.o: In function `sh_vou_remove': vf610-ocotp.c:(.text+0x2dc190): undefined reference to `vb2_dma_contig_cleanup_ctx' This changes the dependency to VIDEOBUF2_DMA_CONTIG instead. Fixes: 57af3ad5 ("[media] sh-vou: convert to vb2") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Kosuke Tatsukawa authored
cpia2_usb_disconnect() seems to be missing a memory barrier which might cause the waker to not notice the waiter and miss sending a wake_up as in the following figure. cpia2_usb_disconnect sync ------------------------------------------------------------------------ mutex_unlock(&cam->v4l2_lock); if (waitqueue_active(&cam->wq_stream)) /* The CPU might reorder the test for the waitqueue up here, before prior writes complete */ /* wait_event_interruptible */ /* __wait_event_interruptible */ /* ___wait_event */ long __int = prepare_to_wait_event( &wq, &__wait, state); if (!cam->streaming || frame->status == FRAME_READY) cam->curbuff->status = FRAME_READY; cam->curbuff->length = 0; schedule() ------------------------------------------------------------------------ The attached patch removes the call to waitqueue_active() leaving just wake_up() behind. This fixes the problem because the call to spin_lock_irqsave() in wake_up() will be an ACQUIRE operation. I found this issue when I was looking through the linux source code for places calling waitqueue_active() before wake_up*(), but without preceding memory barriers, after sending a patch to fix a similar issue in drivers/tty/n_tty.c (Details about the original issue can be found here: https://lkml.org/lkml/2015/9/28/849). Signed-off-by:
Kosuke Tatsukawa <tatsu@ab.jp.nec.com> Signed-off-by:
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Antonio Ospite authored
v4l2-compliance sends a zeroed struct v4l2_streamparm in v4l2-test-formats.cpp::testParmType(), and this results in a division by 0 in some gspca subdrivers: divide error: 0000 [#1] SMP Modules linked in: gspca_ov534 gspca_main ... CPU: 0 PID: 17201 Comm: v4l2-compliance Not tainted 4.3.0-rc2-ao2 #1 Hardware name: System manufacturer System Product Name/M2N-E SLI, BIOS ASUS M2N-E SLI ACPI BIOS Revision 1301 09/16/2010 task: ffff8800818306c0 ti: ffff880095c4c000 task.ti: ffff880095c4c000 RIP: 0010:[<ffffffffa079bd62>] [<ffffffffa079bd62>] sd_set_streamparm+0x12/0x60 [gspca_ov534] RSP: 0018:ffff880095c4fce8 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffff8800c9522000 RCX: ffffffffa077a140 RDX: 0000000000000000 RSI: ffff880095e0c100 RDI: ffff8800c9522000 RBP: ffff880095e0c100 R08: ffffffffa077a100 R09: 00000000000000cc R10: ffff880067ec7740 R11: 0000000000000016 R12: ffffffffa07bb400 R13: 0000000000000000 R14: ffff880081b6a800 R15: 0000000000000000 FS: 00007fda0de78740(0000) GS:ffff88012fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014630f8 CR3: 00000000cf349000 CR4: 00000000000006f0 Stack: ffffffffa07a6431 ffff8800c9522000 ffffffffa077656e 00000000c0cc5616 ffff8800c9522000 ffffffffa07a5e20 ffff880095e0c100 0000000000000000 ffff880067ec7740 ffffffffa077a140 ffff880067ec7740 0000000000000016 Call Trace: [<ffffffffa07a6431>] ? v4l_s_parm+0x21/0x50 [videodev] [<ffffffffa077656e>] ? vidioc_s_parm+0x4e/0x60 [gspca_main] [<ffffffffa07a5e20>] ? __video_do_ioctl+0x280/0x2f0 [videodev] [<ffffffffa07a5ba0>] ? video_ioctl2+0x20/0x20 [videodev] [<ffffffffa07a59b9>] ? video_usercopy+0x319/0x4e0 [videodev] [<ffffffff81182dc1>] ? page_add_new_anon_rmap+0x71/0xa0 [<ffffffff811afb92>] ? mem_cgroup_commit_charge+0x52/0x90 [<ffffffff81179b18>] ? handle_mm_fault+0xc18/0x1680 [<ffffffffa07a15cc>] ? v4l2_ioctl+0xac/0xd0 [videodev] [<ffffffff811c846f>] ? do_vfs_ioctl+0x28f/0x480 [<ffffffff811c86d4>] ? SyS_ioctl+0x74/0x80 [<ffffffff8154a8b6>] ? entry_SYSCALL_64_fastpath+0x16/0x75 Code: c7 93 d9 79 a0 5b 5d e9 f1 f3 9a e0 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 53 31 d2 48 89 fb 48 83 ec 08 8b 46 10 <f7> 76 0c 80 bf ac 0c 00 00 00 88 87 4e 0e 00 00 74 09 80 bf 4f RIP [<ffffffffa079bd62>] sd_set_streamparm+0x12/0x60 [gspca_ov534] RSP <ffff880095c4fce8> ---[ end trace 279710c2c6c72080 ]--- Following what the doc says about a zeroed timeperframe (see http://www.linuxtv.org/downloads/v4l-dvb-apis/vidioc-g-parm.html): ... To reset manually applications can just set this field to zero. fix the issue by resetting the frame rate to a default value in case of an unusable timeperframe. The fix is done in the subdrivers instead of gspca.c because only the subdrivers have notion of a default frame rate to reset the camera to. Signed-off-by:Antonio Ospite <ao2@ao2.it> Cc: stable@vger.kernel.org Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Terry Heo authored
The current cx231xx driver doesn't work with bulk transfer mode. This patch makes it possible to use bulk transfer mode. Signed-off-by:
Terry Heo <terryheo@google.com> Signed-off-by:
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Julia Lawall authored
The radio_tea5777_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by:
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Julia Lawall authored
Move constants to the right of binary operators. Generated by: scripts/coccinelle/misc/compare_const_fl.cocci CC: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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Ricardo Ribalda authored
Vidioc-g-ext-ctrls can now be used to get the default value of the controls. Signed-off-by:
Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by:
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Ricardo Ribalda authored
This driver does not use the control infrastructure. Add support for the new field which on structure v4l2_ext_controls Acked-by:
Mike Isely <isely@pobox.com> Signed-off-by:
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Ricardo Ribalda authored
This driver does not use the control infrastructure. Add support for the new field which on structure v4l2_ext_controls Signed-off-by:
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Ricardo Ribalda authored
Support for new field which on v4l2_ext_controls, used to get the default value of one or more controls. Signed-off-by:
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