Le mardi 08 mars 2022 à 19:48 +0100, Xavier Roumegue a écrit : > The DW100 driver gets the dewarping mapping as a binary blob from the > userspace application through a custom control. > The blob format is hardware specific so create a dedicated control for > this purpose. > > Signed-off-by: Xavier Roumegue <xavier.roumegue@xxxxxxxxxxx> > --- > Documentation/userspace-api/media/drivers/dw100.rst | 7 +++++++ > include/uapi/linux/dw100.h | 11 +++++++++++ > 2 files changed, 18 insertions(+) > create mode 100644 include/uapi/linux/dw100.h > > diff --git a/Documentation/userspace-api/media/drivers/dw100.rst b/Documentation/userspace-api/media/drivers/dw100.rst > index 20aeae63a94f..3abad05849ad 100644 > --- a/Documentation/userspace-api/media/drivers/dw100.rst > +++ b/Documentation/userspace-api/media/drivers/dw100.rst > @@ -20,4 +20,11 @@ match the expected size inherited from the destination image resolution. > More details on the DW100 hardware operations can be found in > *chapter 13.15 DeWarp* of IMX8MP_ reference manuel. > > +The Vivante DW100 m2m driver implements the following driver-specific control: > + > +``V4L2_CID_DW100_MAPPING (integer)`` > + Specifies to DW100 driver its dewarping map (aka LUT) blob as described in > + *chapter 13.15.2.3 Dewarping Remap* of IMX8MP_ reference manual as an U32 > + dynamic array. > + > .. _IMX8MP: https://www.nxp.com/webapp/Download?colCode=IMX8MPIEC This point to a document names "i.MX 8M Plus Applications Processor Datasheet for Industrial Products" which does not contain that reference. > diff --git a/include/uapi/linux/dw100.h b/include/uapi/linux/dw100.h > new file mode 100644 > index 000000000000..0ef926c61cf0 > --- /dev/null > +++ b/include/uapi/linux/dw100.h > @@ -0,0 +1,11 @@ > +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ > +/* Copyright 2022 NXP */ > + > +#ifndef __UAPI_DW100_H__ > +#define __UAPI_DW100_H__ > + > +#include <linux/v4l2-controls.h> > + > +#define V4L2_CID_DW100_MAPPING (V4L2_CID_USER_DW100_BASE + 1) > + > +#endif
