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 struct rcar_fcp_device;
  29
  30 struct vsp1_drm;
  31 struct vsp1_entity;
  32 struct vsp1_platform_data;
  33 struct vsp1_bru;
  34 struct vsp1_clu;
  35 struct vsp1_hsit;
  36 struct vsp1_lif;
  37 struct vsp1_lut;
  38 struct vsp1_rwpf;
  39 struct vsp1_sru;
  40 struct vsp1_uds;
  41
  42 #define VSP1_MAX_RPF            5
  43 #define VSP1_MAX_UDS            3
  44 #define VSP1_MAX_WPF            4
  45
  46 #define VSP1_HAS_LIF            (1 << 0)
  47 #define VSP1_HAS_LUT            (1 << 1)
  48 #define VSP1_HAS_SRU            (1 << 2)
  49 #define VSP1_HAS_BRU            (1 << 3)
  50 #define VSP1_HAS_CLU            (1 << 4)
  51 #define VSP1_HAS_WPF_VFLIP      (1 << 5)
  52 #define VSP1_HAS_WPF_HFLIP      (1 << 6)
  53
  54 struct vsp1_device_info {
  55         u32 version;
  56         unsigned int gen;
  57         unsigned int features;
  58         unsigned int rpf_count;
  59         unsigned int uds_count;
  60         unsigned int wpf_count;
  61         unsigned int num_bru_inputs;
  62         bool uapi;
  63 };
  64
  65 struct vsp1_device {
  66         struct device *dev;
  67         const struct vsp1_device_info *info;
  68
  69         void __iomem *mmio;
  70         struct rcar_fcp_device *fcp;
  71
  72         struct vsp1_bru *bru;
  73         struct vsp1_clu *clu;
  74         struct vsp1_hsit *hsi;
  75         struct vsp1_hsit *hst;
  76         struct vsp1_lif *lif;
  77         struct vsp1_lut *lut;
  78         struct vsp1_rwpf *rpf[VSP1_MAX_RPF];
  79         struct vsp1_sru *sru;
  80         struct vsp1_uds *uds[VSP1_MAX_UDS];
  81         struct vsp1_rwpf *wpf[VSP1_MAX_WPF];
  82
  83         struct list_head entities;
  84         struct list_head videos;
  85
  86         struct v4l2_device v4l2_dev;
  87         struct media_device media_dev;
  88         struct media_entity_operations media_ops;
  89
  90         struct vsp1_drm *drm;
  91 };
  92
  93 int vsp1_device_get(struct vsp1_device *vsp1);
  94 void vsp1_device_put(struct vsp1_device *vsp1);
  95
  96 int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index);
  97
  98 static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
  99 {
 100         return ioread32(vsp1->mmio + reg);
 101 }
 102
 103 static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
 104 {
 105         iowrite32(data, vsp1->mmio + reg);
 106 }
 107
 108 #endif /* __VSP1_H__ */