drivers/media/platform/vsp1/vsp1.h

   1 /*
   2  * vsp1.h  --  R-Car VSP1 Driver
   3  *
   4  * Copyright (C) 2013 Renesas Corporation
   5  *
   6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13 #ifndef __VSP1_H__
  14 #define __VSP1_H__
  15
  16 #include <linux/io.h>
  17 #include <linux/list.h>
  18 #include <linux/mutex.h>
  19 #include <linux/platform_data/vsp1.h>
  20
  21 #include <media/media-device.h>
  22 #include <media/v4l2-device.h>
  23 #include <media/v4l2-subdev.h>
  24
  25 #include "vsp1_regs.h"
  26
  27 struct clk;
  28 struct device;
  29
  30 struct vsp1_platform_data;
  31 struct vsp1_lif;
  32 struct vsp1_rwpf;
  33 struct vsp1_uds;
  34
  35 #define VPS1_MAX_RPF            5
  36 #define VPS1_MAX_UDS            3
  37 #define VPS1_MAX_WPF            4
  38
  39 struct vsp1_device {
  40         struct device *dev;
  41         struct vsp1_platform_data *pdata;
  42
  43         void __iomem *mmio;
  44         struct clk *clock;
  45         struct clk *rt_clock;
  46
  47         struct mutex lock;
  48         int ref_count;
  49
  50         struct vsp1_lif *lif;
  51         struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
  52         struct vsp1_uds *uds[VPS1_MAX_UDS];
  53         struct vsp1_rwpf *wpf[VPS1_MAX_WPF];
  54
  55         struct list_head entities;
  56
  57         struct v4l2_device v4l2_dev;
  58         struct media_device media_dev;
  59 };
  60
  61 struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1);
  62 void vsp1_device_put(struct vsp1_device *vsp1);
  63
  64 static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
  65 {
  66         return ioread32(vsp1->mmio + reg);
  67 }
  68
  69 static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
  70 {
  71         iowrite32(data, vsp1->mmio + reg);
  72 }
  73
  74 #endif /* __VSP1_H__ */