drivers/media/platform/vsp1/vsp1.h

   1 /*
   2  * vsp1.h  --  R-Car VSP1 Driver
   3  *
   4  * Copyright (C) 2013-2014 Renesas Electronics 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
  20 #include <media/media-device.h>
  21 #include <media/v4l2-device.h>
  22 #include <media/v4l2-subdev.h>
  23
  24 #include "vsp1_regs.h"
  25
  26 struct clk;
  27 struct device;
  28
  29 struct vsp1_dl;
  30 struct vsp1_drm;
  31 struct vsp1_entity;
  32 struct vsp1_platform_data;
  33 struct vsp1_bru;
  34 struct vsp1_hsit;
  35 struct vsp1_lif;
  36 struct vsp1_lut;
  37 struct vsp1_rwpf;
  38 struct vsp1_sru;
  39 struct vsp1_uds;
  40
  41 #define VSP1_MAX_RPF            5
  42 #define VSP1_MAX_UDS            3
  43 #define VSP1_MAX_WPF            4
  44
  45 #define VSP1_HAS_LIF            (1 << 0)
  46 #define VSP1_HAS_LUT            (1 << 1)
  47 #define VSP1_HAS_SRU            (1 << 2)
  48 #define VSP1_HAS_BRU            (1 << 3)
  49
  50 struct vsp1_device_info {
  51         u32 version;
  52         unsigned int features;
  53         unsigned int rpf_count;
  54         unsigned int uds_count;
  55         unsigned int wpf_count;
  56         unsigned int num_bru_inputs;
  57         bool uapi;
  58 };
  59
  60 struct vsp1_device {
  61         struct device *dev;
  62         const struct vsp1_device_info *info;
  63
  64         void __iomem *mmio;
  65         struct clk *clock;
  66
  67         struct mutex lock;
  68         int ref_count;
  69
  70         struct vsp1_bru *bru;
  71         struct vsp1_hsit *hsi;
  72         struct vsp1_hsit *hst;
  73         struct vsp1_lif *lif;
  74         struct vsp1_lut *lut;
  75         struct vsp1_rwpf *rpf[VSP1_MAX_RPF];
  76         struct vsp1_sru *sru;
  77         struct vsp1_uds *uds[VSP1_MAX_UDS];
  78         struct vsp1_rwpf *wpf[VSP1_MAX_WPF];
  79
  80         struct list_head entities;
  81         struct list_head videos;
  82
  83         struct v4l2_device v4l2_dev;
  84         struct media_device media_dev;
  85         struct media_entity_operations media_ops;
  86
  87         struct vsp1_drm *drm;
  88
  89         bool use_dl;
  90 };
  91
  92 int vsp1_device_get(struct vsp1_device *vsp1);
  93 void vsp1_device_put(struct vsp1_device *vsp1);
  94
  95 int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index);
  96
  97 static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
  98 {
  99         return ioread32(vsp1->mmio + reg);
 100 }
 101
 102 static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
 103 {
 104         iowrite32(data, vsp1->mmio + reg);
 105 }
 106
 107 #include "vsp1_dl.h"
 108
 109 static inline void vsp1_mod_write(struct vsp1_entity *e, u32 reg, u32 data)
 110 {
 111         if (e->vsp1->use_dl)
 112                 vsp1_dl_add(e, reg, data);
 113         else
 114                 vsp1_write(e->vsp1, reg, data);
 115 }
 116
 117 #endif /* __VSP1_H__ */