All the initialization arrays are changing the horizontal and vertical
totals for some value.
In order to clean up the driver, and since we're going to need that value
later on, let's introduce in the ov5640_mode_info structure the horizontal
and vertical total sizes, and move these out of the bytes array.
Signed-off-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>
The current width and height parameters in the struct ov5640_mode_info are
actually the active horizontal and vertical resolutions.
Since we're going to add a few other parameters, let's pick a better, more
precise name for these values.
Signed-off-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>
The SCLK and SCLK2X dividers are fixed in stone in the initialization
array. Let's make explicit what we're doing and move that away from the
huge array to the initialization code.
Signed-off-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>
The sensor needs to have the auto exposure stopped while changing mode.
However, when the new mode is set, the driver will force the auto exposure
on, disregarding whether the control has been changed or not.
Bypass the controls code entirely to do that, and only use the control
value cached when restoring the auto exposure mode.
Signed-off-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>
Add the light frequency control to be able to set the frequency
to manual (50Hz or 60Hz) or auto.
[Sakari Ailus: Rename "ctl" as "ctrl" as agreed.]
[mchehab+samsung@kernel.org: fixed two coding style warnings]
Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The s_ctrl() operation can be called when the device is placed into
power down mode. Then, applying controls to H/W should be postponed at
this time. Instead the controls will be restored when the streaming is
started.
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The set_fmt() subdev pad operation for this driver currently does not
only do the driver internal format selection but also do the actual
register setup.
This doesn't work if the device power control via GPIO lines is enabled.
Because the set_fmt() can be called when the device is placed into power
down mode.
First of all, this fix adds flag to keep track of whether the device starts
streaming or not. Then, the set_fmt() postpones applying the actual
register setup at this time. Instead the setup will be applied when the
streaming is started.
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
I2C transfer functions return number of successful operations (on success).
Do not return the received positive return code but instead return 0 on
success. The users of write_reg function already use this logic.
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Use dev_fwnode() on the device instead of getting an fwnode handle of the
device's OF node. The result is the same on OF-based systems and looks
better, too.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The DISCOM is used to compute CRCs on display frames. Integrate it in
the display pipeline at the output of the blending unit to process
output frames.
Computing CRCs on input frames is possible by positioning the DISCOM at
a different point in the pipeline. This use case isn't supported at the
moment and could be implemented by extending the API between the VSP1
and DU drivers if needed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The DISCOM calculates a CRC on a configurable window of the frame. It
interfaces to the VSP through the UIF glue, hence the name used in the
code.
The module supports configuration of the CRC window through the crop
rectangle on the sink pad of the corresponding entity. However, unlike
the traditional V4L2 subdevice model, the crop rectangle does not
influence the format on the source pad.
Modeling the DISCOM as a sink-only entity would allow adhering to the
V4L2 subdevice model at the expense of more complex code in the driver,
as at the hardware level the UIF is handled as a sink+source entity. As
the DISCOM is only present in R-Car Gen3 VSP-D and VSP-DL instances it
is not exposed to userspace through V4L2 but controlled through the DU
driver. We can thus change this model later if needed without fear of
affecting userspace.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add a parameter (in the form of a structure to ease future API
extensions) to the VSP atomic flush handler to pass CRC source
configuration, and pass the CRC value to the completion callback.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
To make vsp1_subdev_set_pad_format() usable by entities that support
selection rectangles, we need to reset the crop and compose rectangles
when setting the format on the sink pad. Do so and replace the custom
set_fmt implementation of the histogram code by a call to
vsp1_subdev_set_pad_format().
Resetting the crop and compose rectangles for entities that don't
support crop and compose has no adverse effect as the rectangles are
ignored anyway.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The implementation of the set_fmt pad operation is identical in the
three modules. Move it to a generic helper function.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Adopt the SPDX license identifier headers to ease license compliance
management. All files in the driver are licensed under the GPLv2+ except
for the vsp1_regs.h file which is licensed under the GPLv2. This is
likely an oversight, but fixing this requires contacting the copyright
owners and is out of scope for this patch.
While at it fix the file descriptions to match file names where copy and
paste error occurred.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The Cadence MIPI-CSI2 TX controller is an hardware block meant to be used
as a bridge between pixel interfaces and a CSI-2 bus.
It supports operating with an internal or external D-PHY, with up to 4
lanes, or without any D-PHY. The current code only supports the latter
case.
While the virtual channel input on the pixel interface can be directly
mapped to CSI2, the datatype input is actually a selection signal (3-bits)
mapping to a table of up to 8 preconfigured datatypes/formats (programmed
at start-up)
The block supports up to 8 input datatypes.
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-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>
The clocks enabled by csi2rx_start function are intended to be disabled in
an error path but there are two issues:
1) the loop condition is always true and
2) the first clock disabled is the the one enabling of which failed.
Fix these two bugs by changing the loop condition as well as only disabling
the clocks that were actually enabled.
Reported-by: Mauro Chehab <mchehab@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The Cadence CSI-2 RX Controller is an hardware block meant to be used as a
bridge between a CSI-2 bus and pixel grabbers.
It supports operating with internal or external D-PHY, with up to 4 lanes,
or without any D-PHY. The current code only supports the latter case.
It also support dynamic mapping of the CSI-2 virtual channels to the
associated pixel grabbers, but that isn't allowed at the moment either.
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-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>
slot can be controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability,
as warned by smatch:
drivers/media/dvb-core/dvb_ca_en50221.c:1479 dvb_ca_en50221_io_write() warn: potential spectre issue 'ca->slot_info' (local cap)
Acked-by: "Jasmin J." <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Right now, the Siano's core uses GFP_DMA for both USB and
SDIO variants of the driver. There's no reason to use it
for USB. So, pass GFP_DMA as a parameter during sms core
register.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
There's s no reason why it should be using GFP_DMA there.
This is an USB driver. Any restriction should be, instead,
at HCI core, if any.
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: linux-mm@kvack.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The minimum possible timeout of ite-cir is 8 samples, which is
typically about 70us. The driver however changes the FIFO trigger
level from the hardware's default of 1 byte to 17 bytes, so the minimum
usable timeout value is 17 * 8 samples, which is typically about 1.2ms.
Tests showed that using timeouts down to 1.2ms actually work fine.
The current default timeout of 200ms is much longer than necessary and
the maximum timeout of 1s seems to have been chosen a bit arbitrarily.
So change the minimum timeout to the driver's limit of 17 * 8 samples
and bring timeout and maximum timeout in line with the settings
of many other receivers.
Signed-off-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
ir_raw_event_set_idle() sends a timeout event which is not needed, and
on startup no reset event is needed either.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Drivers should never produce consecutive pulse or space raw events. Should
that occur, we would have bigger problems than this code is trying to
guard against.
Note that we already log an error should a driver misbehave.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Report an error if this is not the case or any problem with the generated
raw events.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Any spaces events received after a reset or startup should be discarded,
so ensure the rc device is in idle mode.
This also makes it much easier to detect incorrect raw events, as we will
do in a following commit.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
A mceusb device has been observed producing invalid irdata. Proactively
guard against this.
Suggested-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
If the IR timeout is set on vid 1784 pid 0011, the device starts
behaving strangely.
Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This is a core media file... it shoudn't have so many coding
style issues! The last patch ended by being submitted with
an error like that, very likely due to some cut and paste
issue.
Maybe it is time to clean it up. Do it with the auto
fix logic:
./scripts/checkpatch.pl -f drivers/media/dvb-core/dvb_frontend.c --strict --fix-inplace
Then manually fix the errors introduced by it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add missing 'inline' to fix this compiler warning:
In file included from drivers/media/common/b2c2/flexcop-fe-tuner.c:21:0:
drivers/media/dvb-frontends/lgdt330x.h:61:22: warning: 'lgdt330x_attach' defined but not used [-Wunused-function]
struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
^~~~~~~~~~~~~~~
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Suggested-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
When refactoring the Gen3 enablement series crop and compose handling
where broken. This went unnoticed but can result in writing out side the
capture buffer. Fix this by restoring the crop and compose to reflect
the format dimensions as we have not yet enabled the scaler for Gen3.
Fixes: 5e7c623632 ("media: rcar-vin: use different v4l2 operations in media controller mode")
Reported-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The offending commit was an attempt to fix the issue of writing outside
the capture buffer for VIN Gen3. Unfortunately it only fixed the symptom
of the problem to such a degree I could no longer reproduce it. Revert
the offending commit before a proper fix can be added in a follow-up
patch.
This reverts commit 015060cb77.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Trivial fix to spelling mistake in dprintk message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
cx231-417 uses kmalloc/kfree functions, so slab header needs to be
included in order to fix the following build errors:
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘cx231xx_bulk_copy’:
CC drivers/media/platform/qcom/venus/firmware.o
drivers/media/usb/cx231xx/cx231xx-417.c:1389:11: error: implicit declaration of function ‘kmalloc’; did you mean ‘vmalloc’? [-Werror=implicit-function-declaration]
buffer = kmalloc(buffer_size, GFP_ATOMIC);
^~~~~~~
vmalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1389:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
buffer = kmalloc(buffer_size, GFP_ATOMIC);
^
drivers/media/usb/cx231xx/cx231xx-417.c:1400:2: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration]
kfree(buffer);
^~~~~
vfree
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘mpeg_open’:
drivers/media/usb/cx231xx/cx231xx-417.c:1713:7: error: implicit declaration of function ‘kzalloc’; did you mean ‘vzalloc’? [-Werror=implicit-function-declaration]
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
^~~~~~~
vzalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1713:5: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
^
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
If 'media_entity_pads_init()' fails, we must free the resources allocated
by 'v4l2_ctrl_handler_init()', as already done in the previous error
handling path.
'goto' the right label to fix it.
Fixes: 9ac0038db9 ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Returning -1 (-EPERM) is not appropriate here, go with -EIO.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
These two statements are not errors, reduce to appropriate level.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Trivial fix to spelling mistake in dev_err message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Document what these two register calls are doing.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Include some additional useful registers in the output.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Currently mask is read for pci_status/ts1_status/ts2_status, but
otherwise ignored. The masks are now used to determine whether
action is warranted.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
On Ryzen systems interrupts are occasionally missed:
cx23885: cx23885_wakeup: [ffff99b384b83c00/28] wakeup reg=5406 buf=5405
cx23885: cx23885_wakeup: [ffff99b40bf79400/31] wakeup reg=9537 buf=9536
This patch loops up to five times on wakeup, marking any buffers
found done.
Since the count register is u16, but the vb2 counter is u32, some modulo
arithmetic is used to accommodate wraparound and ensure current active
buffer is the buffer expected.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This change removes IOCTL_INFO_STD and adds stub functions where
needed using the DEFINE_V4L_STUB_FUNC macro. This fixes indirect call
mismatches with Control-Flow Integrity, caused by calling standard
ioctls using a function pointer that doesn't match the function type.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Instead of putting V4L2_CAP_STREAMING and V4L2_CAP_READWRITE
everywhere, set device_caps earlier with these values.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
To better organize the code we concentrate the setting of
V4L2_CAP_STREAMING in one place.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add R-Mobile A1 R8A7740 SoC to the list of compatible values for the CEU
unit.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
