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 
84