bd2fdd5aa9
The datasheet clearly states that all but a few registers can't be modified when the device is running. Programming the alpha value in the control set handler is thus prohibited. Program it when starting the module instead. This requires storing the alpha value internally as the module can be started from the frame completion interrupt handler, and accessing control values requires taking a mutex. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/*
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* vsp1_rwpf.h -- R-Car VSP1 Read and Write Pixel Formatters
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*
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* Copyright (C) 2013-2014 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_RWPF_H__
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#define __VSP1_RWPF_H__
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1.h"
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#include "vsp1_entity.h"
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#define RWPF_PAD_SINK 0
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#define RWPF_PAD_SOURCE 1
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struct v4l2_ctrl;
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struct vsp1_dl_manager;
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struct vsp1_rwpf;
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struct vsp1_video;
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struct vsp1_rwpf_memory {
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unsigned int num_planes;
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dma_addr_t addr[3];
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unsigned int length[3];
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};
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struct vsp1_rwpf_operations {
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void (*set_memory)(struct vsp1_rwpf *rwpf,
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struct vsp1_rwpf_memory *mem);
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};
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struct vsp1_rwpf {
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struct vsp1_entity entity;
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struct v4l2_ctrl_handler ctrls;
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struct vsp1_video *video;
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const struct vsp1_rwpf_operations *ops;
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unsigned int max_width;
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unsigned int max_height;
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struct v4l2_pix_format_mplane format;
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const struct vsp1_format_info *fmtinfo;
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struct {
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unsigned int left;
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unsigned int top;
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} location;
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struct v4l2_rect crop;
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unsigned int alpha;
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unsigned int offsets[2];
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dma_addr_t buf_addr[3];
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struct vsp1_dl_manager *dlm;
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};
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static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_rwpf, entity.subdev);
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}
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struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
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struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
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int vsp1_rwpf_init_ctrls(struct vsp1_rwpf *rwpf);
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int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_mbus_code_enum *code);
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int vsp1_rwpf_enum_frame_size(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_frame_size_enum *fse);
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int vsp1_rwpf_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt);
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int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt);
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int vsp1_rwpf_get_selection(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_selection *sel);
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int vsp1_rwpf_set_selection(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_selection *sel);
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#endif /* __VSP1_RWPF_H__ */
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