1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
4 * Author: Jacob Chen <jacob-chen@iotwrt.com>
5 */
6#ifndef __RGA_H__
7#define __RGA_H__
8
9#include <linux/platform_device.h>
10#include <media/videobuf2-v4l2.h>
11#include <media/v4l2-ctrls.h>
12#include <media/v4l2-device.h>
13
14#define RGA_NAME "rockchip-rga"
15
16struct rga_fmt {
17	u32 fourcc;
18	int depth;
19	u8 uv_factor;
20	u8 y_div;
21	u8 x_div;
22	u8 color_swap;
23	u8 hw_format;
24};
25
26struct rga_frame {
27	/* Original dimensions */
28	u32 width;
29	u32 height;
30	u32 colorspace;
31
32	/* Crop */
33	struct v4l2_rect crop;
34
35	/* Image format */
36	struct rga_fmt *fmt;
37	struct v4l2_pix_format_mplane pix;
38
39	/* Variables that can calculated once and reused */
40	u32 stride;
41	u32 size;
42};
43
44struct rga_dma_desc {
45	u32 addr;
46};
47
48struct rockchip_rga_version {
49	u32 major;
50	u32 minor;
51};
52
53struct rga_ctx {
54	struct v4l2_fh fh;
55	struct rockchip_rga *rga;
56	struct rga_frame in;
57	struct rga_frame out;
58	struct v4l2_ctrl_handler ctrl_handler;
59
60	/* Control values */
61	u32 op;
62	u32 hflip;
63	u32 vflip;
64	u32 rotate;
65	u32 fill_color;
66};
67
68struct rockchip_rga {
69	struct v4l2_device v4l2_dev;
70	struct v4l2_m2m_dev *m2m_dev;
71	struct video_device *vfd;
72
73	struct device *dev;
74	struct regmap *grf;
75	void __iomem *regs;
76	struct clk *sclk;
77	struct clk *aclk;
78	struct clk *hclk;
79	struct rockchip_rga_version version;
80
81	/* vfd lock */
82	struct mutex mutex;
83	/* ctrl parm lock */
84	spinlock_t ctrl_lock;
85
86	struct rga_ctx *curr;
87	dma_addr_t cmdbuf_phy;
88	void *cmdbuf_virt;
89};
90
91struct rga_addr_offset {
92	unsigned int y_off;
93	unsigned int u_off;
94	unsigned int v_off;
95};
96
97struct rga_vb_buffer {
98	struct vb2_v4l2_buffer vb_buf;
99	struct list_head queue;
100
101	/* RGA MMU mapping for this buffer */
102	struct rga_dma_desc *dma_desc;
103	dma_addr_t dma_desc_pa;
104	size_t n_desc;
105
106	/* Plane offsets of this buffer into the mapping */
107	struct rga_addr_offset offset;
108};
109
110static inline struct rga_vb_buffer *vb_to_rga(struct vb2_v4l2_buffer *vb)
111{
112	return container_of(vb, struct rga_vb_buffer, vb_buf);
113}
114
115struct rga_frame *rga_get_frame(struct rga_ctx *ctx, enum v4l2_buf_type type);
116
117/* RGA Buffers Manage */
118extern const struct vb2_ops rga_qops;
119
120/* RGA Hardware */
121static inline void rga_write(struct rockchip_rga *rga, u32 reg, u32 value)
122{
123	writel(value, rga->regs + reg);
124};
125
126static inline u32 rga_read(struct rockchip_rga *rga, u32 reg)
127{
128	return readl(rga->regs + reg);
129};
130
131static inline void rga_mod(struct rockchip_rga *rga, u32 reg, u32 val, u32 mask)
132{
133	u32 temp = rga_read(rga, reg) & ~(mask);
134
135	temp |= val & mask;
136	rga_write(rga, reg, temp);
137};
138
139void rga_hw_start(struct rockchip_rga *rga,
140		  struct rga_vb_buffer *src, struct rga_vb_buffer *dst);
141
142#endif
143