Commit 50e76151 authored by Paul Kocialkowski's avatar Paul Kocialkowski Committed by Mauro Carvalho Chehab
Browse files

media: platform: Add Cedrus VPU decoder driver 



This introduces the Cedrus VPU driver that supports the VPU found in
Allwinner SoCs, also known as Video Engine. It is implemented through
a V4L2 M2M decoder device and a media device (used for media requests).
So far, it only supports MPEG-2 decoding.

Since this VPU is stateless, synchronization with media requests is
required in order to ensure consistency between frame headers that
contain metadata about the frame to process and the raw slice data that
is used to generate the frame.

This driver was made possible thanks to the long-standing effort
carried out by the linux-sunxi community in the interest of reverse
engineering, documenting and implementing support for the Allwinner VPU.

Signed-off-by: default avatarPaul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: dropped obsolete MEDIA_REQUEST_API from Kconfig]
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent a20625fb

MAINTAINERS

+7 −0
Original line number Diff line number Diff line
@@ -663,6 +663,13 @@ L: linux-crypto@vger.kernel.org 
S:	Maintained

F:	drivers/crypto/sunxi-ss/



ALLWINNER VPU DRIVER

M:	Maxime Ripard <maxime.ripard@bootlin.com>

M:	Paul Kocialkowski <paul.kocialkowski@bootlin.com>

L:	linux-media@vger.kernel.org

S:	Maintained

F:	drivers/staging/media/sunxi/cedrus/



ALPHA PORT

M:	Richard Henderson <rth@twiddle.net>

M:	Ivan Kokshaysky <ink@jurassic.park.msu.ru>

drivers/staging/media/Kconfig

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Original line number Diff line number Diff line
@@ -31,6 +31,8 @@ source "drivers/staging/media/mt9t031/Kconfig" 


source "drivers/staging/media/omap4iss/Kconfig"



source "drivers/staging/media/sunxi/Kconfig"



source "drivers/staging/media/tegra-vde/Kconfig"



source "drivers/staging/media/zoran/Kconfig"

drivers/staging/media/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -5,5 +5,6 @@ obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074/ 
obj-$(CONFIG_SOC_CAMERA_MT9T031)	+= mt9t031/

obj-$(CONFIG_VIDEO_DM365_VPFE)	+= davinci_vpfe/

obj-$(CONFIG_VIDEO_OMAP4)	+= omap4iss/

obj-$(CONFIG_VIDEO_SUNXI)	+= sunxi/

obj-$(CONFIG_TEGRA_VDE)		+= tegra-vde/

obj-$(CONFIG_VIDEO_ZORAN)	+= zoran/

drivers/staging/media/sunxi/Kconfig

0 → 100644
+15 −0
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config VIDEO_SUNXI

	bool "Allwinner sunXi family Video Devices"

	depends on ARCH_SUNXI || COMPILE_TEST

	help

	  If you have an Allwinner SoC based on the sunXi family, say Y.



	  Note that this option doesn't include new drivers in the

	  kernel: saying N will just cause Kconfig to skip all the

	  questions about Allwinner media devices.



if VIDEO_SUNXI



source "drivers/staging/media/sunxi/cedrus/Kconfig"



endif

drivers/staging/media/sunxi/Makefile

0 → 100644
+1 −0
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obj-$(CONFIG_VIDEO_SUNXI_CEDRUS)	+= cedrus/

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