forked from Minki/linux
26e0ca22c3
The VSP1 is a video processing engine that includes a blender, scalers, filters and statistics computation. Configurable data path routing logic allows ordering the internal blocks in a flexible way. Due to the configurable nature of the pipeline the driver implements the media controller API and doesn't use the V4L2 mem-to-mem framework, even though the device usually operates in memory to memory mode. Only the read pixel formatters, up/down scalers, write pixel formatters and LCDC interface are supported at this stage. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/*
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* vsp1.h -- R-Car VSP1 Driver
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*
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* Copyright (C) 2013 Renesas 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_H__
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#define __VSP1_H__
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#include <linux/io.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <linux/platform_data/vsp1.h>
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#include <media/media-device.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_regs.h"
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struct clk;
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struct device;
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struct vsp1_platform_data;
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struct vsp1_lif;
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struct vsp1_rwpf;
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struct vsp1_uds;
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#define VPS1_MAX_RPF 5
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#define VPS1_MAX_UDS 3
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#define VPS1_MAX_WPF 4
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struct vsp1_device {
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struct device *dev;
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struct vsp1_platform_data *pdata;
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void __iomem *mmio;
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struct clk *clock;
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struct mutex lock;
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int ref_count;
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struct vsp1_lif *lif;
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struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
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struct vsp1_uds *uds[VPS1_MAX_UDS];
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struct vsp1_rwpf *wpf[VPS1_MAX_WPF];
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struct list_head entities;
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struct v4l2_device v4l2_dev;
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struct media_device media_dev;
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};
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struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1);
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void vsp1_device_put(struct vsp1_device *vsp1);
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static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
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{
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return ioread32(vsp1->mmio + reg);
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}
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static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
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{
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iowrite32(data, vsp1->mmio + reg);
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}
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#endif /* __VSP1_H__ */
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