- 29 Apr, 2024 28 commits
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Sakari Ailus authored
Add trivial S_ROUTING IOCTL support for drivers where routing is static. Essentially this means returning the same information G_ROUTING call would have done. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Co-developed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Julien Massot <julien.massot@collabora.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Sakari Ailus authored
Return the routes set using S_ROUTING back to the user. Also reflect this in documentation. Signed-off-by:
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Sakari Ailus authored
The len_routes field is used to tell the size of the routes array in struct v4l2_subdev_routing. This way the number of routes returned from S_ROUTING IOCTL may be larger than the number of routes provided, in case there are more routes returned by the driver. Note that this uAPI is still disabled in the code, so this change can safely be done. Anyone who manually patched the code to enable this uAPI must update their code. The patch also increases the number of reserved fields in struct v4l2_subdev_routing. Signed-off-by:
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Sakari Ailus authored
As the user needs to know what went wrong for S_ROUTING, copy array arguments back to the user. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
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Sakari Ailus authored
Add two new functions, v4l2_subdev_lock_states() and v4l2_subdev_unclock_states(), to acquire and release the state of two sub-devices. They differ from calling v4l2_subdev_{un,}lock_state() so that if the two states share the same lock, the lock is acquired only once. Also use the new functions in v4l2_subdev_link_validate(). Signed-off-by: -
Sakari Ailus authored
Document S_ROUTING behaviour for different devices. Generally in devices that produce streams the streams are static and some can be enabled and disabled, whereas in devices that just transport them or write them to memory, more configurability is allowed. Document this. Signed-off-by:
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Sakari Ailus authored
Having extra streams on the source end of the link that cannot be captured by the sink sub-device generally are not an issue, at least not on CSI-2 bus. Still document that there may be hardware-specific limitations. For example on parallel bus this might not work on all cases. Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by:
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Sakari Ailus authored
Set (and unset) the V4L2_FMT_FLAG_META_LINE_BASED flag in struct v4l2_fmtdesc based on the format after returning the driver callback for enumerating formats. This way the drivers don't need to care about the flag. Signed-off-by:
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Sakari Ailus authored
Many camera sensors, among other devices, transmit embedded data and image data for each CSI-2 frame. This embedded data typically contains register configuration of the sensor that has been used to capture the image data of the same frame. The embedded data is received by the CSI-2 receiver and has the same properties as the image data, including that it is line based: it has width, height and bytesperline (stride). Add these fields to struct v4l2_meta_format and document them. Also add V4L2_FMT_FLAG_META_LINE_BASED to tell a given format is line-based i.e. these fields of struct v4l2_meta_format are valid for it. Signed-off-by:
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Sakari Ailus authored
Generic 8-bit metadata formats define the in-memory data layout but not the format of the data itself. The reasoning for having such formats is to allow CSI-2 receiver drivers to receive and DMA drivers to write the data to memory without knowing a large number of device-specific formats. These formats may be used only in conjunction with a Media Controller pipeline where the internal pad of the source sub-device defines the specific format of the data (using an mbus code). Signed-off-by:
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Sakari Ailus authored
Now that metadata mbus formats have been added, it is necessary to define which fields in struct v4l2_mbus_format are applicable to them (not many). Signed-off-by:
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Sakari Ailus authored
Add generic serial metadata mbus formats. These formats describe data width and packing but not the content itself. The reason for specifying such formats is that the formats as such are fairly device specific but they are still handled by CSI-2 receiver drivers that should not be aware of device specific formats. What makes generic metadata formats possible is that these formats are parsed by software only, after capturing the data to system memory. Also add a definition for "Data Unit" to cover what is essentially a pixel but is not image data. Signed-off-by:
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Sakari Ailus authored
Add term "stream" to the glossary of the Media subsystem documentation. Signed-off-by:
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Laurent Pinchart authored
The V4L2 subdev crop API has been marked as obsolete, deprecated by the selection API. Despite this, it has recently been extended with streams support. In hindsight this was a mistake. Make sure it doesn't happen again by clearly documenting that no new extensions will be accepted. Suggested-by:
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Minghao Chi authored
release_firmware() checks for NULL pointers internally so checking before calling it is redundant. Link: https://lore.kernel.org/linux-media/20220606014433.290667-1-chi.minghao@zte.com.cnReported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Minghao Chi <chi.minghao@zte.com.cn> Acked-by:
Matthias Schwarzott <zzam@gentoo.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@kernel.org>
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Dongliang Mu authored
Commit d725d20e ("media: flexcop-usb: sanity checking of endpoint type ") adds a sanity check for endpoint[1], but fails to modify the sanity check of bNumEndpoints. Fix this by modifying the sanity check of bNumEndpoints to 2. Link: https://lore.kernel.org/linux-media/20220602055027.849014-1-dzm91@hust.edu.cn Fixes: d725d20e ("media: flexcop-usb: sanity checking of endpoint type") Signed-off-by:
Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by:
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Oliver Neukum authored
High speed is no longer the ultimate in speed. Link: https://lore.kernel.org/linux-media/20220517131109.28371-2-oneukum@suse.comSigned-off-by:
Oliver Neukum <oneukum@suse.com> Signed-off-by:
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Oliver Neukum authored
No need for GFP_ATOMIC during probe() Link: https://lore.kernel.org/linux-media/20220517131109.28371-1-oneukum@suse.comSigned-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Oliver Neukum authored
No need for GFP_ATOMIC during probe() Link: https://lore.kernel.org/linux-media/20220517111049.25611-1-oneukum@suse.comSigned-off-by:
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Zheyu Ma authored
The driver should disable regulators when fails to probe. Link: https://lore.kernel.org/linux-media/20220510114852.1719018-1-zheyuma97@gmail.comSigned-off-by:
Zheyu Ma <zheyuma97@gmail.com> Signed-off-by:
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Zheyu Ma authored
The driver should check whether the client provides the platform_data. The following log reveals it: [ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40 [ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414 [ 29.612820] Call Trace: [ 29.613030] <TASK> [ 29.613201] dump_stack_lvl+0x56/0x6f [ 29.613496] ? kmemdup+0x30/0x40 [ 29.613754] print_report.cold+0x494/0x6b7 [ 29.614082] ? kmemdup+0x30/0x40 [ 29.614340] kasan_report+0x8a/0x190 [ 29.614628] ? kmemdup+0x30/0x40 [ 29.614888] kasan_check_range+0x14d/0x1d0 [ 29.615213] memcpy+0x20/0x60 [ 29.615454] kmemdup+0x30/0x40 [ 29.615700] lgdt3306a_probe+0x52/0x310 [ 29.616339] i2c_device_probe+0x951/0xa90 Link: https://lore.kernel.org/linux-media/20220405095018.3993578-1-zheyuma97@gmail.comSigned-off-by:
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Mauro Carvalho Chehab authored
Use checkpatch --strict --in-place to cleanup most style issues. Then, do some manual work to fix most of the remaining issues. Signed-off-by: -
Michael Bunk authored
Found by checkpatch. Link: https://lore.kernel.org/linux-media/20220116112238.74171-4-micha@freedict.orgSigned-off-by:
Michael Bunk <micha@freedict.org> Signed-off-by:
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Michael Bunk authored
"modinfo dvb-usb-dw2102|grep 0105" returns two lines, because the module reports this usb alias twice. Remove one of them. Signed-off-by:
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Michael Bunk authored
The code ignored the I2C_M_RD flag on I2C messages. Instead it assumed an i2c transaction with a single message must be a write operation and a transaction with two messages would be a read operation. Though this works for the driver code, it leads to problems once the i2c device is exposed to code not knowing this convention. For example, I did "insmod i2c-dev" and issued read requests from userspace, which were translated into write requests and destroyed the EEPROM of my device. So, just check and respect the I2C_M_READ flag, which indicates a read when set on a message. If it is absent, it is a write message. Incidentally, changing from the case statement to a while loop allows the code to lift the limitation to two i2c messages per transaction. There are 4 more *_i2c_transfer functions affected by the same behaviour and limitation that should be fixed in the same way. Link: https://lore.kernel.org/linux-media/20220116112238.74171-2-micha@freedict.orgSigned-off-by:
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Michael Bunk authored
The new m88ds3101b demodulator version requires the highest bit of register 0x11 be cleared after tuning to a new frequency to make the lock output pin go high when a signal is found. This pin is normally connected to an indicator led. Link: https://lore.kernel.org/linux-media/20220116112238.74171-1-micha@freedict.orgSigned-off-by:
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Laurent Pinchart authored
Protect against multiple inclusions of the max9271.h header with include guards. Link: https://lore.kernel.org/linux-media/20220102224803.27463-1-laurent.pinchart+renesas@ideasonboard.comSigned-off-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by:
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Laurent Pinchart authored
Fix a small indentation issue in a comment block. Link: https://lore.kernel.org/linux-media/20220101173540.9090-1-laurent.pinchart+renesas@ideasonboard.comSigned-off-by:
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- 27 Apr, 2024 1 commit
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Eugen Hristev authored
It is possible that mtk_vcodec_enc_pw_on fails, and in that scenario the PM counter is not incremented, and subsequent call to mtk_vcodec_enc_pw_off decrements the counter, leading to a PM imbalance. Fix by bailing out of venc_if_encode in the case when mtk_vcodec_enc_pw_on fails. Fixes: 4e855a6e ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver") Signed-off-by:
Eugen Hristev <eugen.hristev@collabora.com> Reviewed-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by:
Andrzej Pietrasiewicz <andrzej.p@collabora.com> Signed-off-by:
Sebastian Fricke <sebastian.fricke@collabora.com> Signed-off-by:
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- 26 Apr, 2024 11 commits
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Fei Shao authored
In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly called only when the buffer to free exists, there are some instances that didn't do the check and triggered warnings in practice. We believe those checks were forgotten unintentionally. Add the checks back to fix the warnings. Signed-off-by:
Fei Shao <fshao@chromium.org> Reviewed-by:
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Fei Shao authored
In mtk_vcodec_mem_free(), there are two cases where a NULL VA is passed: - mem->size == 0: we are called to free no memory. This may happen when we call mtk_vcodec_mem_free() twice or the memory has never been allocated. - mem->size > 0: we are called to free memory but without VA. This means that we failed to free the memory for real. Both cases are not expected to happen, and we want to have clearer error messages to describe which one we just encountered. Update the error messages to include more information for that purpose. Signed-off-by:
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Fei Shao authored
In mtk_vcodec_mem_alloc() and mtk_vcodec_mem_free(), the value of mem->size is not expected to change before and when using the DMA APIs and debug print, so there's no point in keeping local copies of it. Drop the local variable "size" in the mentioned functions, and update printk format identifiers accordingly. This makes the code slightly more visually consistent, and retrieve a small amount of memory that is used for no real purpose. Signed-off-by:
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Fei Shao authored
mtk_v4l2_err() already uses dev_err(), so don't print the device name again. Print the function name instead. Signed-off-by:
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Sakari Ailus authored
Set the owner field of the async sub-devices by making v4l2_async_register_subdev() a macro and obtaining THIS_MODULE that way. Signed-off-by:
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Sakari Ailus authored
Set a sub-device's owner field to the caller's module, provided as an argument to the function. v4l2_device_register_subdev() becomes a macro passing THIS_MODULE to the __v4l2_device_register_subdev() function. Signed-off-by:
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Umang Jain authored
Drop dev_err() and use the dev_err_probe() helper on probe path. No functional changes intended. Signed-off-by:
Umang Jain <umang.jain@ideasonboard.com> Signed-off-by:
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Mikhail Rudenko authored
Set timing-related and BLC anchor registers via cci calls instead of hardcoding them in the register table. This prepares the driver for implementation of configurable analogue crop and binning. No functional change intended. Signed-off-by:
Mikhail Rudenko <mike.rudenko@gmail.com> Reviewed-by:
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Mikhail Rudenko authored
Pixel array dimensions and default crop size do not belong to the ov4689_mode structure, since they are mode independent. Make them defines instead. Signed-off-by:
Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by:
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Mikhail Rudenko authored
The OV4689 sensor has separate red and blue gain settings (up to 4x). Implement appropriate controls in the driver. Default gain values are not modified. Signed-off-by:
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Mikhail Rudenko authored
The OV4689 sensor supports digital gain up to 16x. Implement corresponding control in the driver. Default digital gain value is not modified by this patch. Signed-off-by:
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