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         void __iomem            *regs;
  29         struct clk              *clk;
  30         struct clk              *gate;
  31         struct g2d_ctx          *curr;
  32         struct g2d_variant      *variant;
  33         int irq;
  34 };
  35
  36 struct g2d_frame {
  37         /* Original dimensions */
  38         u32     width;
  39         u32     height;
  40         /* Crop size */
  41         u32     c_width;
  42         u32     c_height;
  43         /* Offset */
  44         u32     o_width;
  45         u32     o_height;
  46         /* Image format */
  47         struct g2d_fmt *fmt;
  48         /* Variables that can calculated once and reused */
  49         u32     stride;
  50         u32     bottom;
  51         u32     right;
  52         u32     size;
  53 };
  54
  55 struct g2d_ctx {
  56         struct v4l2_fh fh;
  57         struct g2d_dev          *dev;
  58         struct g2d_frame        in;
  59         struct g2d_frame        out;
  60         struct v4l2_ctrl        *ctrl_hflip;
  61         struct v4l2_ctrl        *ctrl_vflip;
  62         struct v4l2_ctrl_handler ctrl_handler;
  63         u32 rop;
  64         u32 flip;
  65 };
  66
  67 struct g2d_fmt {
  68         char    *name;
  69         u32     fourcc;
  70         int     depth;
  71         u32     hw;
  72 };
  73
  74 struct g2d_variant {
  75         unsigned short hw_rev;
  76 };
  77
  78 void g2d_reset(struct g2d_dev *d);
  79 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
  80 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
  81 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
  82 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
  83 void g2d_start(struct g2d_dev *d);
  84 void g2d_clear_int(struct g2d_dev *d);
  85 void g2d_set_rop4(struct g2d_dev *d, u32 r);
  86 void g2d_set_flip(struct g2d_dev *d, u32 r);
  87 void g2d_set_v41_stretch(struct g2d_dev *d,
  88                         struct g2d_frame *src, struct g2d_frame *dst);
  89 void g2d_set_cmd(struct g2d_dev *d, u32 c);