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path: root/drivers/media/platform/stm32
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2018-03-21media: stm32-dcmi: add JPEG supportHugues Fruchet1-47/+146
Add DCMI JPEG support. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21media: stm32-dcmi: fix unnecessary parenthesesHugues Fruchet1-6/+6
Fix unnecessary parentheses in if conditions. Detected by checkpatch.pl --strict. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21media: stm32-dcmi: rework overrun/error caseHugues Fruchet1-18/+11
Do not stop/restart dma on overrun or errors. Dma will be restarted on current frame transfer completion. Frame transfer completion is ensured even if overrun or error occurs by DCMI continuous capture mode which restarts data transfer at next frame sync. Do no warn on overrun while in irq thread, this slows down system and lead to more overrun errors. Use a counter instead and log errors at stop streaming. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21media: stm32-dcmi: fix lock schemeHugues Fruchet1-33/+24
Fix lock scheme leading to spurious freeze. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: stm32-dcmi: add g/s_parm framerate supportHugues Fruchet1-0/+19
Add g/s_parm framerate support by calling subdev g/s_frame_interval ops. This allows user to control sensor framerate by calling ioctl G/S_PARM. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: stm32-dcmi: improve error trace pointsHugues Fruchet1-7/+9
Fix some missing "\n". Trace error returned by subdev streamon/streamoff. Remove extra "0x" unneeded with %pad formatter. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: stm32-dcmi: remove redundant clear of interrupt flagsHugues Fruchet1-2/+0
It is already cleared in dcmi_irq_callback(). Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: stm32-dcmi: remove redundant capture enableHugues Fruchet1-3/+0
Remove redundant capture enable already done in dcmi_start_capture(). Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: platform: stm32: Adopt SPDX identifierBenjamin Gaignard2-5/+2
Add SPDX identifiers to files under stm32 directory Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Acked-by: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29media: v4l2-async: simplify v4l2_async_subdev structureMauro Carvalho Chehab1-1/+1
The V4L2_ASYNC_MATCH_FWNODE match criteria requires just one struct to be filled (struct fwnode_handle). The V4L2_ASYNC_MATCH_DEVNAME match criteria requires just a device name. So, it doesn't make sense to enclose those into structs, as the criteria can go directly into the union. That makes easier to document it, as we don't need to document weird senseless structs. At drivers, this makes even clearer about the match criteria. Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Benoit Parrot <bparrot@ti.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Hyun Kwon <hyun.kwon@xilinx.com> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31media: v4l: async: Move async subdev notifier operations to a separate structureLaurent Pinchart1-3/+7
The async subdev notifier .bound(), .unbind() and .complete() operations are function pointers stored directly in the v4l2_async_subdev structure. As the structure isn't immutable, this creates a potential security risk as the function pointers are mutable. To fix this, move the function pointers to a new v4l2_async_subdev_operations structure that can be made const in drivers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: stm32-dcmi: g_/s_selection crop supportHugues Fruchet1-4/+370
Implements g_/s_selection crop support by using DCMI crop hardware feature. User can first get the maximum supported resolution of the sensor by calling g_selection(V4L2_SEL_TGT_CROP_BOUNDS). Then user call to s_selection(V4L2_SEL_TGT_CROP) will reset sensor to its maximum resolution and crop request is saved for later usage in s_fmt(). Next call to s_fmt() will check if sensor can do frame size request with crop request. If sensor supports only discrete frame sizes, the frame size which is larger than user request is selected in order to be able to match the crop request. Then s_fmt() resolution user request is adjusted to match crop request resolution. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: stm32-dcmi: cleanup variable/fields namingsHugues Fruchet1-49/+54
Uniformize "pixfmt" variables to "pix". Change "current_fmt" & "dcmi_fmt" variables to variables with "sd_" prefix to explicitly refer to subdev format. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: stm32-dcmi: revisit control register handlingHugues Fruchet1-10/+4
Simplify bits handling of DCMI_CR register. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: stm32-dcmi: catch dma submission errorHugues Fruchet1-0/+4
Test cookie return by dmaengine_submit() and return error if any. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: stm32-cec: use CEC_CAP_DEFAULTSHans Verkuil1-3/+1
Use the new CEC_CAP_DEFAULTS define in this driver. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-08media: stm32-dcmi: explicitly request exclusive reset controlPhilipp Zabel1-1/+1
Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting reset lines") started to transition the reset control request API calls to explicitly state whether the driver needs exclusive or shared reset control behavior. Convert all drivers requesting exclusive resets to the explicit API call so the temporary transition helpers can be removed. No functional changes. Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19media: stm32-dcmi: constify vb2_ops structureGustavo A. R. Silva1-1/+1
Check for vb2_ops structures that are only stored in the ops field of a vb2_queue structure. That field is declared const, so vb2_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... }; @ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-13[media] cec: add STM32 cec driverBenjamin Gaignard2-0/+363
This patch add cec driver for STM32 platforms. cec hardware block isn't not always used with hdmi so cec notifier is not implemented. That will be done later when STM32 DSI driver will be available. Driver compliance has been tested with cec-ctl and cec-compliance tools. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Yannick Fertre <yannick.fertre@st.com> [hans.verkuil@cisco.com: modified platform/Makefile to use obj-y] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] v4l: Switch from V4L2 OF not V4L2 fwnode APISakari Ailus1-6/+7
Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs. Async OF matching is replaced by fwnode matching and OF matching support is removed. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c, am437x/am437x-vpfe.c and ti-vpe/cal.c Tested-by: Hans Verkuil <hans.verkuil@cisco.com> # Atmel sama5d3 board + ov2640 sensor Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] stm32-dcmi: STM32 DCMI camera interface driverHugues Fruchet2-0/+1404
This V4L2 subdev driver enables Digital Camera Memory Interface (DCMI) of STMicroelectronics STM32 SoC series. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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