drivers/media/video/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 <media/v4l2-device.h>
  14 #include <media/v4l2-ctrls.h>
  15
  16 #define G2D_NAME "s5p-g2d"
  17
  18 struct g2d_dev {
  19         struct v4l2_device      v4l2_dev;
  20         struct v4l2_m2m_dev     *m2m_dev;
  21         struct video_device     *vfd;
  22         struct mutex            mutex;
  23         spinlock_t              irqlock;
  24         atomic_t                num_inst;
  25         struct vb2_alloc_ctx    *alloc_ctx;
  26         struct resource         *res_regs;
  27         void __iomem            *regs;
  28         struct clk              *clk;
  29         struct clk              *gate;
  30         struct g2d_ctx          *curr;
  31         int irq;
  32         wait_queue_head_t       irq_queue;
  33 };
  34
  35 struct g2d_frame {
  36         /* Original dimensions */
  37         u32     width;
  38         u32     height;
  39         /* Crop size */
  40         u32     c_width;
  41         u32     c_height;
  42         /* Offset */
  43         u32     o_width;
  44         u32     o_height;
  45         /* Image format */
  46         struct g2d_fmt *fmt;
  47         /* Variables that can calculated once and reused */
  48         u32     stride;
  49         u32     bottom;
  50         u32     right;
  51         u32     size;
  52 };
  53
  54 struct g2d_ctx {
  55         struct v4l2_fh fh;
  56         struct g2d_dev          *dev;
  57         struct v4l2_m2m_ctx     *m2m_ctx;
  58         struct g2d_frame        in;
  59         struct g2d_frame        out;
  60         struct v4l2_ctrl_handler ctrl_handler;
  61         u32 rop;
  62 };
  63
  64 struct g2d_fmt {
  65         char    *name;
  66         u32     fourcc;
  67         int     depth;
  68         u32     hw;
  69 };
  70
  71
  72 void g2d_reset(struct g2d_dev *d);
  73 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
  74 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
  75 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
  76 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
  77 void g2d_start(struct g2d_dev *d);
  78 void g2d_clear_int(struct g2d_dev *d);
  79 void g2d_set_rop4(struct g2d_dev *d, u32 r);
  80 u32 g2d_cmd_stretch(u32 e);
  81 void g2d_set_cmd(struct g2d_dev *d, u32 c);
  82
  83