1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Samsung S5P G2D - 2D Graphics Accelerator Driver
4  *
5  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
6  * Kamil Debski, <k.debski@samsung.com>
7  */
8 
9 #include <linux/platform_device.h>
10 #include <media/v4l2-device.h>
11 #include <media/v4l2-ctrls.h>
12 
13 #define G2D_NAME "s5p-g2d"
14 #define TYPE_G2D_3X 3
15 #define TYPE_G2D_4X 4
16 
17 struct g2d_dev {
18 	struct v4l2_device	v4l2_dev;
19 	struct v4l2_m2m_dev	*m2m_dev;
20 	struct video_device	*vfd;
21 	struct mutex		mutex;
22 	spinlock_t		ctrl_lock;
23 	atomic_t		num_inst;
24 	void __iomem		*regs;
25 	struct clk		*clk;
26 	struct clk		*gate;
27 	struct g2d_ctx		*curr;
28 	struct g2d_variant	*variant;
29 	int irq;
30 };
31 
32 struct g2d_frame {
33 	/* Original dimensions */
34 	u32	width;
35 	u32	height;
36 	/* Crop size */
37 	u32	c_width;
38 	u32	c_height;
39 	/* Offset */
40 	u32	o_width;
41 	u32	o_height;
42 	/* Image format */
43 	struct g2d_fmt *fmt;
44 	/* Variables that can calculated once and reused */
45 	u32	stride;
46 	u32	bottom;
47 	u32	right;
48 	u32	size;
49 };
50 
51 struct g2d_ctx {
52 	struct v4l2_fh fh;
53 	struct g2d_dev		*dev;
54 	struct g2d_frame	in;
55 	struct g2d_frame	out;
56 	struct v4l2_ctrl	*ctrl_hflip;
57 	struct v4l2_ctrl	*ctrl_vflip;
58 	struct v4l2_ctrl_handler ctrl_handler;
59 	u32 rop;
60 	u32 flip;
61 };
62 
63 struct g2d_fmt {
64 	u32	fourcc;
65 	int	depth;
66 	u32	hw;
67 };
68 
69 struct g2d_variant {
70 	unsigned short hw_rev;
71 };
72 
73 void g2d_reset(struct g2d_dev *d);
74 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
75 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
76 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
77 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
78 void g2d_start(struct g2d_dev *d);
79 void g2d_clear_int(struct g2d_dev *d);
80 void g2d_set_rop4(struct g2d_dev *d, u32 r);
81 void g2d_set_flip(struct g2d_dev *d, u32 r);
82 void g2d_set_v41_stretch(struct g2d_dev *d,
83 			struct g2d_frame *src, struct g2d_frame *dst);
84 void g2d_set_cmd(struct g2d_dev *d, u32 c);
85