drivers/media/platform/s5p-g2d/g2d.h

   1 /*
   2  * Samsung S5P G2D - 2D Graphics Accelerator Driver
   3  *
   4  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   5  * Kamil Debski, <k.debski@samsung.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2 of the
  10  * License, or (at your option) any later version
  11  */
  12
  13 #include <linux/platform_device.h>
  14 #include <media/v4l2-device.h>
  15 #include <media/v4l2-ctrls.h>
  16
  17 #define G2D_NAME "s5p-g2d"
  18 #define TYPE_G2D_3X 3
  19 #define TYPE_G2D_4X 4
  20
  21 struct g2d_dev {
  22         struct v4l2_device      v4l2_dev;
  23         struct v4l2_m2m_dev     *m2m_dev;
  24         struct video_device     *vfd;
  25         struct mutex            mutex;
  26         spinlock_t              ctrl_lock;
  27         atomic_t                num_inst;
  28         struct vb2_alloc_ctx    *alloc_ctx;
  29         void __iomem            *regs;
  30         struct clk              *clk;
  31         struct clk              *gate;
  32         struct g2d_ctx          *curr;
  33         struct g2d_variant      *variant;
  34         int irq;
  35         wait_queue_head_t       irq_queue;
  36 };
  37
  38 struct g2d_frame {
  39         /* Original dimensions */
  40         u32     width;
  41         u32     height;
  42         /* Crop size */
  43         u32     c_width;
  44         u32     c_height;
  45         /* Offset */
  46         u32     o_width;
  47         u32     o_height;
  48         /* Image format */
  49         struct g2d_fmt *fmt;
  50         /* Variables that can calculated once and reused */
  51         u32     stride;
  52         u32     bottom;
  53         u32     right;
  54         u32     size;
  55 };
  56
  57 struct g2d_ctx {
  58         struct v4l2_fh fh;
  59         struct g2d_dev          *dev;
  60         struct g2d_frame        in;
  61         struct g2d_frame        out;
  62         struct v4l2_ctrl        *ctrl_hflip;
  63         struct v4l2_ctrl        *ctrl_vflip;
  64         struct v4l2_ctrl_handler ctrl_handler;
  65         u32 rop;
  66         u32 flip;
  67 };
  68
  69 struct g2d_fmt {
  70         char    *name;
  71         u32     fourcc;
  72         int     depth;
  73         u32     hw;
  74 };
  75
  76 struct g2d_variant {
  77         unsigned short hw_rev;
  78 };
  79
  80 void g2d_reset(struct g2d_dev *d);
  81 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
  82 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
  83 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
  84 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
  85 void g2d_start(struct g2d_dev *d);
  86 void g2d_clear_int(struct g2d_dev *d);
  87 void g2d_set_rop4(struct g2d_dev *d, u32 r);
  88 void g2d_set_flip(struct g2d_dev *d, u32 r);
  89 void g2d_set_v41_stretch(struct g2d_dev *d,
  90                         struct g2d_frame *src, struct g2d_frame *dst);
  91 void g2d_set_cmd(struct g2d_dev *d, u32 c);
  92
  93 static inline struct g2d_variant *g2d_get_drv_data(struct platform_device *pdev)
  94 {
  95         return (struct g2d_variant *)platform_get_device_id(pdev)->driver_data;
  96 }