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 <linux/platform_device.h>
14 #include <media/v4l2-device.h>
15 #include <media/v4l2-ctrls.h>
16
17 #define G2D_NAME "s5p-g2d"
18 #define TYPE_G2D_3X 3
19 #define TYPE_G2D_4X 4
20
21 struct g2d_dev {
22 struct v4l2_device v4l2_dev;
23 struct v4l2_m2m_dev *m2m_dev;
24 struct video_device *vfd;
25 struct mutex mutex;
26 spinlock_t ctrl_lock;
27 atomic_t num_inst;
28 struct vb2_alloc_ctx *alloc_ctx;
29 void __iomem *regs;
30 struct clk *clk;
31 struct clk *gate;
32 struct g2d_ctx *curr;
33 struct g2d_variant *variant;
34 int irq;
35 wait_queue_head_t irq_queue;
36 };
37
38 struct g2d_frame {
39 /* Original dimensions */
40 u32 width;
41 u32 height;
42 /* Crop size */
43 u32 c_width;
44 u32 c_height;
45 /* Offset */
46 u32 o_width;
47 u32 o_height;
48 /* Image format */
49 struct g2d_fmt *fmt;
50 /* Variables that can calculated once and reused */
51 u32 stride;
52 u32 bottom;
53 u32 right;
54 u32 size;
55 };
56
57 struct g2d_ctx {
58 struct v4l2_fh fh;
59 struct g2d_dev *dev;
60 struct g2d_frame in;
61 struct g2d_frame out;
62 struct v4l2_ctrl *ctrl_hflip;
63 struct v4l2_ctrl *ctrl_vflip;
64 struct v4l2_ctrl_handler ctrl_handler;
65 u32 rop;
66 u32 flip;
67 };
68
69 struct g2d_fmt {
70 char *name;
71 u32 fourcc;
72 int depth;
73 u32 hw;
74 };
75
76 struct g2d_variant {
77 unsigned short hw_rev;
78 };
79
80 void g2d_reset(struct g2d_dev *d);
81 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
82 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
83 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
84 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
85 void g2d_start(struct g2d_dev *d);
86 void g2d_clear_int(struct g2d_dev *d);
87 void g2d_set_rop4(struct g2d_dev *d, u32 r);
88 void g2d_set_flip(struct g2d_dev *d, u32 r);
89 void g2d_set_v41_stretch(struct g2d_dev *d,
90 struct g2d_frame *src, struct g2d_frame *dst);
91 void g2d_set_cmd(struct g2d_dev *d, u32 c);
92
g2d_get_drv_data(struct platform_device * pdev)93 static inline struct g2d_variant *g2d_get_drv_data(struct platform_device *pdev)
94 {
95 return (struct g2d_variant *)platform_get_device_id(pdev)->driver_data;
96 }
97