- 28 May, 2018 2 commits
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Niklas Söderlund authored
A V4L2 driver for Renesas R-Car MIPI CSI-2 receiver. The driver supports the R-Car Gen3 SoCs where separate CSI-2 hardware blocks are connected between the video sources and the video grabbers (VIN). Driver is based on a prototype by Koji Matsuoka in the Renesas BSP. Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Niklas Söderlund authored
Documentation for Renesas R-Car MIPI CSI-2 receiver. The CSI-2 receivers are located between the video sources (CSI-2 transmitters) and the video grabbers (VIN) on Gen3 of Renesas R-Car SoC. Each CSI-2 device is connected to more than one VIN device which simultaneously can receive video from the same CSI-2 device. Each VIN device can also be connected to more than one CSI-2 device. The routing of which links are used is controlled by the VIN devices. There are only a few possible routes which are set by hardware limitations, which are different for each SoC in the Gen3 family. Signed-off-by:
Rob Herring <robh@kernel.org> Reviewed-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by:
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- 25 May, 2018 30 commits
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Kieran Bingham authored
We are now able to configure a pipeline directly into a local display list body. Take advantage of this fact, and create a cacheable body to store the configuration of the pipeline in the pipeline object. vsp1_video_pipeline_run() is now the last user of the pipe->dl object. Convert this function to use the cached pipe->stream_config body and obtain a local display list reference. Attach the pipe->stream_config body to the display list when needed before committing to hardware. Use a flag 'configured' to know when we should attach our stream_config to the next outgoing display list to reconfigure the hardware in the event of our first frame, or the first frame following a suspend/resume cycle. Our video DL usage now looks like the below output: dl->body0 contains our disposable runtime configuration. Max 41. dl_child->body0 is our partition specific configuration. Max 12. dl->bodies shows our constant configuration and LUTs. These two are LUT/CLU: * dl->bodies[x]->num_entries 256 / max 256 * dl->bodies[x]->num_entries 4914 / max 4914 Which shows that our 'constant' configuration cache is currently utilised to a maximum of 64 entries. trace-cmd report | \ dl->body0->num_entries 13 / max 128 dl->body0->num_entries 14 / max 128 dl->body0->num_entries 16 / max 128 dl->body0->num_entries 20 / max 128 dl->body0->num_entries 27 / max 128 dl->body0->num_entries 34 / max 128 dl->body0->num_entries 41 / max 128 dl_child->body0->num_entries 10 / max 128 dl_child->body0->num_entries 12 / max 128 dl->bodies[x]->num_entries 15 / max 128 dl->bodies[x]->num_entries 16 / max 128 dl->bodies[x]->num_entries 17 / max 128 dl->bodies[x]->num_entries 18 / max 128 dl->bodies[x]->num_entries 20 / max 128 dl->bodies[x]->num_entries 21 / max 128 dl->bodies[x]->num_entries 256 / max 256 dl->bodies[x]->num_entries 31 / max 128 dl->bodies[x]->num_entries 32 / max 128 dl->bodies[x]->num_entries 39 / max 128 dl->bodies[x]->num_entries 40 / max 128 dl->bodies[x]->num_entries 47 / max 128 dl->bodies[x]->num_entries 48 / max 128 dl->bodies[x]->num_entries 4914 / max 4914 dl->bodies[x]->num_entries 55 / max 128 dl->bodies[x]->num_entries 56 / max 128 dl->bodies[x]->num_entries 63 / max 128 dl->bodies[x]->num_entries 64 / max 128 Signed-off-by:Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
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Kieran Bingham authored
Currently the entities store their configurations into a display list. Adapt this such that the code can be configured into a body directly, allowing greater flexibility and control of the content. All users of vsp1_dl_list_write() are removed in this process, thus it too is removed. A helper, vsp1_dl_list_get_body0() is provided to access the internal body0 from the display list. [laurent.pinchart+renesas@ideasonboard.com: Don't remove blank line unnecessarily] Signed-off-by:
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Kieran Bingham authored
The entities provide a single .configure operation which configures the object into the target display list, based on the vsp1_entity_params selection. Split the configure function into three parts, '.configure_stream()', '.configure_frame()', and '.configure_partition()' to facilitate splitting the configuration of each parameter class into separate display list bodies. [laurent.pinchart+renesas@ideasonboard.com: Blank line reformatting, remote unneeded local variable initialization] Signed-off-by:
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Kieran Bingham authored
Extend the display list body with a reference count, allowing bodies to be kept as long as a reference is maintained. This provides the ability to keep a cached copy of bodies which will not change, so that they can be re-applied to multiple display lists. Signed-off-by:
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Kieran Bingham authored
Adapt the dl->body0 object to use an object from the body pool. This greatly reduces the pressure on the TLB for IPMMU use cases, as all of the lists use a single allocation for the main body. The CLU and LUT objects pre-allocate a pool containing three bodies, allowing a userspace update before the hardware has committed a previous set of tables. Bodies are no longer 'freed' in interrupt context, but instead released back to their respective pools. This allows us to remove the garbage collector in the DLM. Signed-off-by:
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Kieran Bingham authored
Each display list allocates a body to store register values in a dma accessible buffer from a dma_alloc_wc() allocation. Each of these results in an entry in the IOMMU TLB, and a large number of display list allocations adds pressure to this resource. Reduce TLB pressure on the IPMMUs by allocating multiple display list bodies in a single allocation, and providing these to the display list through a 'body pool'. A pool can be allocated by the display list manager or entities which require their own body allocations. Signed-off-by:
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Kieran Bingham authored
The body write function relies on the code never asking it to write more than the entries available in the list. Currently with each list body containing 256 entries, this is fine, but we can reduce this number greatly saving memory. In preparation of this add a level of protection to catch any buffer overflows. Signed-off-by:
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Kieran Bingham authored
Throughout the codebase, the term 'fragment' is used to represent a display list body. This term duplicates the 'body' which is already in use. The datasheet references these objects as a body, therefore replace all mentions of a fragment with a body, along with the corresponding pluralised terms. Signed-off-by:
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Kieran Bingham authored
The suspend and resume handlers are only utilised by video pipelines, yet the functions currently reside in the vsp1_pipe object. This causes an issue with resume, as the functions incorrectly call vsp1_pipeline_run() directly instead of processing the video object through vsp1_video_pipeline_run(). Move the functions to the video object, renaming accordingly and update the resume handler to call vsp1_video_pipeline_run() as appropriate. Signed-off-by:
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Kieran Bingham authored
Commit 372b2b03 ("media: v4l: vsp1: Release buffers in start_streaming error path") introduced a helper to clean up buffers on error paths, but inadvertently changed the code such that only the output WPF buffers were cleaned, rather than the video node being operated on. Since then vsp1_video_cleanup_pipeline() has grown to perform both video node cleanup, as well as pipeline cleanup. Split the implementation into two distinct functions that perform the required work, so that each video node can release its buffers correctly on streamoff. The pipe cleanup that was performed in the vsp1_video_stop_streaming() (releasing the pipe->dl) is moved to the function for clarity. Fixes: 372b2b03 ("media: v4l: vsp1: Release buffers in start_streaming error path") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by:
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Geert Uytterhoeven authored
VIDEO_RENESAS_VSP1 depends on ARCH_RENESAS && OF. As ARCH_RENESAS implies OF, the latter can be dropped. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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Hans Verkuil authored
The CEC receive buffer was not always cleared correctly. The datasheet was a bit confusing since sometimes it mentioned that the bit in CEC register 0x4a had to be toggled, and sometimes it suggested it was a 'Clear-on-write' bit. But it really needs to be toggled. The patch also enables/disables the CEC irqs after the other irq are enabled/disabled instead of doing it before. It may not matter, but it feels more logical to do it in that order, and the implementation that we (Cisco) have used until now and that is known to be reliable also did it in that order. Signed-off-by:
Hans Verkuil <hansverk@cisco.com> Signed-off-by:
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Fabien Dessenne authored
Set the DMA_MASK and stop using the GFP_DMA flag Signed-off-by:
Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by:
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Fabien Dessenne authored
Set the DMA_MASK and stop using the GFP_DMA flag Signed-off-by:
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Hans Verkuil authored
Clarify the description of status bits, particularly w.r.t. ERROR and NACK. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Hans Verkuil authored
In function 'strncpy', inlined from 'soc_camera_platform_probe' at drivers/media/platform/soc_camera/soc_camera_platform.c:162:2: include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound 32 equals destination size [-Wstringop-truncation] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: -
Hans Verkuil authored
In function 'strncpy', inlined from 'ceu_notify_complete' at drivers/media/platform/renesas-ceu.c:1378:2: include/linux/string.h:246:9: warning: '__builtin_strncpy' output truncated before terminating nul copying 11 bytes from a string of the same length [-Wstringop-truncation] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: -
Hans Verkuil authored
drivers/staging/media/imx/imx-media-capture.c: In function 'vidioc_querycap': drivers/staging/media/imx/imx-media-capture.c:76:2: warning: 'strncpy' output truncated copying 15 bytes from a string of length 17 [-Wstringop-truncation] strncpy(cap->driver, "imx-media-capture", sizeof(cap->driver) - 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by:
Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by:
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Hans Verkuil authored
In function 'strncpy', inlined from 'vidioc_g_audio' at media-git/drivers/media/usb/hdpvr/hdpvr-video.c:876:2: media-git/include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound 32 equals destination size [-Wstringop-truncation] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: -
Hans Verkuil authored
media-git/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c: In function 'vidioc_querycap': media-git/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1317:2: warning: 'strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation] strncpy(cap->card, dev->vfd_enc->name, sizeof(cap->card) - 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ media-git/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c: In function 'vidioc_querycap': media-git/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c:275:2: warning: 'strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation] strncpy(cap->card, dev->vfd_dec->name, sizeof(cap->card) - 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
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Hans Verkuil authored
In file included from media-git/include/linux/bitmap.h:9, from media-git/include/linux/cpumask.h:12, from media-git/arch/x86/include/asm/cpumask.h:5, from media-git/arch/x86/include/asm/msr.h:11, from media-git/arch/x86/include/asm/processor.h:21, from media-git/arch/x86/include/asm/cpufeature.h:5, from media-git/arch/x86/include/asm/thread_info.h:53, from media-git/include/linux/thread_info.h:38, from media-git/arch/x86/include/asm/preempt.h:7, from media-git/include/linux/preempt.h:81, from media-git/include/linux/spinlock.h:51, from media-git/include/linux/seqlock.h:36, from media-git/include/linux/time.h:6, from media-git/include/linux/stat.h:19, from media-git/include/linux/module.h:10, from media-git/drivers/staging/media/zoran/zoran_driver.c:44: In function 'strncpy', inlined from 'zoran_querycap' at media-git/drivers/staging/media/zoran/zoran_driver.c:1512:2: media-git/include/linux/string.h:246:9: warning: '__builtin_strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: -
Hans Verkuil authored
drivers/media/usb/go7007/go7007-v4l2.c:637:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation] drivers/media/usb/go7007/go7007-fw.c:1507:3: warning: this statement may fall through [-Wimplicit-fallthrough=] Signed-off-by:
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Luca Ceresoli authored
The API limitation described here is about the CROP API, not about the entire V4L2. Signed-off-by:
Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by:
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Luca Ceresoli authored
Split section "Comparison with old cropping API" in paragraphs for easier reading and improve visible links text. Signed-off-by:
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Luca Ceresoli authored
These files have an automatically-generated numbering. Rename them with a name that suggests their meaning. Reported-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
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Luca Ceresoli authored
Having two somewhat similar and largely overlapping APIs is confusing, especially since the older one appears in the docs before the newer and most featureful counterpart. Clarify all of this in several ways: - swap the two sections - give a name to the two APIs in the section names - add a note at the beginning of the CROP API section - update note about VIDIOC_CROPCAP Also remove a note that is incorrect (correct wording is in vidioc-cropcap.rst). Signed-off-by:
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Luca Ceresoli authored
Fix typos in the selection documentation: - over -> cover - BONDS -> BOUNDS Signed-off-by:
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Hans Verkuil authored
This driver hasn't been tested in a long, long time. The hardware is ancient and pretty much obsolete. This driver also needs to be converted to newer media frameworks (vb2!) but due to the lack of time and interest that is unlikely to happen. So this driver is a prime candidate for removal. If someone is interested in working on this driver to prevent its removal, then please contact the linux-media mailinglist. Signed-off-by:
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Laurent Pinchart authored
The pixel rate, as reported by the V4L2_CID_PIXEL_RATE control, must include both horizontal and vertical blanking. Both the AFE and HDMI receiver program it incorrectly: - The HDMI receiver goes to the trouble of removing blanking to compute the rate of active pixels. This is easy to fix by removing the computation and returning the incoming pixel clock rate directly. - The AFE performs similar calculation, while it should simply return the fixed pixel rate for analog sources, mandated by the ADV748x to be 14.3180180 MHz. [Niklas: Update AFE fixed pixel rate] Signed-off-by:
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Ezequiel Garcia authored
This driver is currently specifying a vb2_queue lock, which means it straightforward to implement wait_prepare and wait_finish. Having these callbacks releases the queue lock while blocking, which improves latency by allowing for example streamoff or qbuf operations while waiting in dqbuf. Signed-off-by:
Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by:
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- 17 May, 2018 8 commits
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Luca Ceresoli authored
mode_table[] has 3 members that are accessed based on their index, which makes worth using an array. The other members are always accessed with a constant index. This added indirection gives no improvement and only makes code more verbose. Remove these pointers from the array and access them directly. Signed-off-by:
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Luca Ceresoli authored
Most registers are defined using the name used in the datasheet. E.g. the defines for the HMAX register are IMX274_HMAX_REG_*. Rename the SHR and VMAX register accordingly. Also move them close to related registers: SHR close to SVR, VMAX close to HMAX. Signed-off-by:
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Luca Ceresoli authored
struct imx274_frmfmt is instantiated only in the imx274_formats[] array, where imx274_formats[N].mode always equals N (via enum imx274_mode). So .mode carries no information, and unsurprisingly it is never used. mbus_code is never used because the 12 bit modes are not implemented. The colorspace member is also never used, which is normal since the imx274 sensor can output only one colorspace. Let's get rid of all of them. Signed-off-by:
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Luca Ceresoli authored
imx274_s_frame_interval() already has a direct pointer to the v4l2 exposure control, so reuse it to simplify code. Signed-off-by:
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Luca Ceresoli authored
interal->interval Signed-off-by:
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Luca Ceresoli authored
Document the unit to avoid having to look through the code to compute it. Also clarify that these are min and max values. Signed-off-by:
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Colin Ian King authored
The current code decrements the timeout counter i and the end of each loop i is incremented, so the check for timeout will always be false and hence the timeout mechanism is just a dead code path. Potentially, if the RD_READY bit is not set, we could end up in an infinite loop. Fix this so the timeout starts from 1000 and decrements to zero, if at the end of the loop i is zero we have a timeout condition. Detected by CoverityScan, CID#1324008 ("Logically dead code") Fixes: ccfc97bd ("[media] smiapp: Add driver") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Todor Tomov authored
The ov7251 sensor is a 1/7.5-Inch B&W VGA (640x480) CMOS Digital Image Sensor from Omnivision. The driver supports the following modes: - 640x480 30fps - 640x480 60fps - 640x480 90fps Output format is 10bit B&W RAW - MEDIA_BUS_FMT_Y10_1X10. The driver supports configuration via user controls for: - exposure and gain; - horizontal and vertical flip; - test pattern. [Sakari Ailus: Wrap a line over 80 characters, fix trivial sparse warning] Signed-off-by:
Todor Tomov <todor.tomov@linaro.org> Reviewed-by:
Jacopo Mondi <jacopo@jmondi.org> Signed-off-by:
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