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
18struct 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		ctrl_lock;
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
35struct 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
54struct 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	*ctrl_hflip;
61	struct v4l2_ctrl	*ctrl_vflip;
62	struct v4l2_ctrl_handler ctrl_handler;
63	u32 rop;
64	u32 flip;
65};
66
67struct g2d_fmt {
68	char	*name;
69	u32	fourcc;
70	int	depth;
71	u32	hw;
72};
73
74
75void g2d_reset(struct g2d_dev *d);
76void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
77void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
78void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
79void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
80void g2d_start(struct g2d_dev *d);
81void g2d_clear_int(struct g2d_dev *d);
82void g2d_set_rop4(struct g2d_dev *d, u32 r);
83void g2d_set_flip(struct g2d_dev *d, u32 r);
84u32 g2d_cmd_stretch(u32 e);
85void g2d_set_cmd(struct g2d_dev *d, u32 c);
86
87
88