g2d.h

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/*
 * Samsung S5P G2D - 2D Graphics Accelerator Driver
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Kamil Debski, <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version
 */

#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>

#define G2D_NAME "s5p-g2d"

struct g2d_dev {
    struct v4l2_device  v4l2_dev;
    struct v4l2_m2m_dev *m2m_dev;
    struct video_device *vfd;
    struct mutex        mutex;
    spinlock_t      ctrl_lock;
    atomic_t        num_inst;
    struct vb2_alloc_ctx    *alloc_ctx;
    void __iomem        *regs;
    struct clk      *clk;
    struct clk      *gate;
    struct g2d_ctx      *curr;
    int irq;
    wait_queue_head_t   irq_queue;
};

struct g2d_frame {
    /* Original dimensions */
    u32 width;
    u32 height;
    /* Crop size */
    u32 c_width;
    u32 c_height;
    /* Offset */
    u32 o_width;
    u32 o_height;
    /* Image format */
    struct g2d_fmt *fmt;
    /* Variables that can calculated once and reused */
    u32 stride;
    u32 bottom;
    u32 right;
    u32 size;
};

struct g2d_ctx {
    struct v4l2_fh fh;
    struct g2d_dev      *dev;
    struct v4l2_m2m_ctx     *m2m_ctx;
    struct g2d_frame    in;
    struct g2d_frame    out;
    struct v4l2_ctrl    *ctrl_hflip;
    struct v4l2_ctrl    *ctrl_vflip;
    struct v4l2_ctrl_handler ctrl_handler;
    u32 rop;
    u32 flip;
};

struct g2d_fmt {
    char    *name;
    u32 fourcc;
    int depth;
    u32 hw;
};


void g2d_reset(struct g2d_dev *d);
void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
void g2d_start(struct g2d_dev *d);
void g2d_clear_int(struct g2d_dev *d);
void g2d_set_rop4(struct g2d_dev *d, u32 r);
void g2d_set_flip(struct g2d_dev *d, u32 r);
u32 g2d_cmd_stretch(u32 e);
void g2d_set_cmd(struct g2d_dev *d, u32 c);