Adds ipu_cpmem_set_axi_id() to set which AXI bus master the channel
will use to transfer data onto AXI bus.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds ipu_idmac_lock_enable(), which enables or disables channel
burst locking.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds the function ipu_idmac_enable_watermark(), which enables or disables
watermarking in the IDMAC channel. Enabling watermarking can increase a
channel's AXI bus arbitration priority.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds ipu_stride_to_bytes(), which converts a pixel stride to bytes,
suitable for passing to cpmem.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds __ipu_idmac_reset_current_buffer() that resets a channel's
internal current buffer pointer so that transfers start from buffer
0 on the next channel enable.
This operation is required for channel linking to work correctly,
for instance video capture pipelines that carry out image rotations
will fail after the first streaming unless this function is called
for each channel before re-enabling the channels.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add the reverse of ipu_idmac_select_buffer(), that is, clear a buffer
ready status in a channel.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add ipu_idmac_buffer_is_ready(), returns true if the given buffer in
the given channel is set ready (owned by IPU), or false if not ready
(owned by CPU core).
Support has been added for third buffer, there is no support yet for
triple-buffering in idmac channels, but this function checks
buffer-ready for third buffer in case this support is added later.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Move the IDMAC channel names to imx-ipu-v3.h, to make the names
available outside IPU. Add a couple new channels in the process
(async display BG/FG, channels 24 and 29).
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add simple helper function returning true if passed pixel format is one
of supported planar ones.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add two functions:
- ipu_degrees_to_rot_mode(): converts a degrees, hflip, and vflip setting
to an IPU rotation mode.
- ipu_rot_mode_to_degrees(): converts an IPU rotation mode with given hflip
and vflip settings to degrees.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add ipu_mbus_code_to_colorspace() to find ipu_color_space from a
media bus pixel format code.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds ipu_smfc_set_watermark() which programs a channel's SMFC FIFO
levels at which the watermark signal is set and cleared.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Convert the smfc object to be specific to a single smfc channel.
Add ipu_smfc_{get|put} to retrieve and release a single smfc channel
for exclusive use, and add use counter to ipu_smfc_{enable|disable}.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Move the SMFC module enable/disable helpers into the ipu-smfc submodule.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds the Image Converter (IC) unit.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Condensed the three CSC setup functions into a single one that
uses static tables to set up the CSC task parameters.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds the Camera Sensor Interface (CSI) unit required for video capture.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Removed the unused clk_get_rate in ipu_csi_init_interface and the
ipu_csi_ccir_err_detection_enable/disable functions.
Checkpatch cleanup.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Let's only define DEBUG for debugging purpose and not by default to avoid
printing debugging message unnecessarily.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Avoid returning an uninitialized variable in the error path.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Rename the ENC/VF/PP rotation channel names, to be more consistent
with the convention that *_MEM is write-to-memory channels and
MEM_* is read-from-memory channels. Also add the channels who's
source and destination is the IC.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds two new functions, ipu_set_csi_src_mux() and ipu_set_ic_src_mux(),
that select the inputs to the CSI and IC respectively. Both muxes are
programmed in the IPU_CONF register.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Move channel parameter memory setup functions and macros into a new
submodule ipu-cpmem. In the process, cleanup arguments to the functions
to take a channel pointer instead of a pointer into cpmem for that
channel. That allows the structure of the parameter memory to be
private to ipu-cpmem.c.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Pull drm updates from Dave Airlie:
"This is the main drm merge window pull request, changes all over the
place, mostly normal levels of churn.
Highlights:
Core drm:
More cleanups, fix race on connector/encoder naming, docs updates,
object locking rework in prep for atomic modeset
i915:
mipi DSI support, valleyview power fixes, cursor size fixes,
execlist refactoring, vblank improvements, userptr support, OOM
handling improvements
radeon:
GPUVM tuning and large page size support, gart fixes, deep color
HDMI support, HDMI audio cleanups
nouveau:
- displayport rework should fix lots of issues
- initial gk20a support
- gk110b support
- gk208 fixes
exynos:
probe order fixes, HDMI changes, IPP consolidation
msm:
debugfs updates, misc fixes
ast:
ast2400 support, sync with UMS driver
tegra:
cleanups, hdmi + hw cursor for Tegra 124.
panel:
fixes existing panels add some new ones.
ipuv3:
moved from staging to drivers/gpu"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (761 commits)
drm/nouveau/disp/dp: fix tmds passthrough on dp connector
drm/nouveau/dp: probe dpcd to determine connectedness
drm/nv50-: trigger update after all connectors disabled
drm/nv50-: prepare for attaching a SOR to multiple heads
drm/gf119-/disp: fix debug output on update failure
drm/nouveau/disp/dp: make use of postcursor when its available
drm/g94-/disp/dp: take max pullup value across all lanes
drm/nouveau/bios/dp: parse lane postcursor data
drm/nouveau/dp: fix support for dpms
drm/nouveau: register a drm_dp_aux channel for each dp connector
drm/g94-/disp: add method to power-off dp lanes
drm/nouveau/disp/dp: maintain link in response to hpd signal
drm/g94-/disp: bash and wait for something after changing lane power regs
drm/nouveau/disp/dp: split link config/power into two steps
drm/nv50/disp: train PIOR-attached DP from second supervisor
drm/nouveau/disp/dp: make use of existing output data for link training
drm/gf119/disp: start removing direct vbios parsing from supervisor
drm/nv50/disp: start removing direct vbios parsing from supervisor
drm/nouveau/disp/dp: maintain receiver caps in response to hpd signal
drm/nouveau/disp/dp: create subclass for dp outputs
...
This patch registers the two CSI platform devices per IPU.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
IPU_CONF_..._EN bits are implementation details, not to be made public.
Add wrappers around ipu_module_enable/disable, so the CSI V4L2 driver
can enable/disable the CSI and SMFC modules.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This function returns the currently active buffer (0 or 1)
of a double buffered IDMAC channel. It is to be used by the
CSI driver.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
The Sensor Multi Fifo Controller (SMFC) is used as a buffer between
the two CSIs (writing simultaneously) and up to four IDMAC channels.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
The i.MX Image Processing Unit (IPU) contains a number of image processing
blocks that sit right in the middle between DRM and V4L2. Some of the modules,
such as Display Controller, Processor, and Interface (DC, DP, DI) or CMOS
Sensor Interface (CSI) and their FIFOs could be assigned to either framework,
but others, such as the dma controller (IDMAC) and image converter (IC) can
be used by both.
The IPUv3 core driver provides an internal API to access the modules, to be
used by both DRM and V4L2 IPUv3 drivers.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
