1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2008-2009 Texas Instruments Inc
4 */
5
6#ifndef _VPFE_CAPTURE_H
7#define _VPFE_CAPTURE_H
8
9#ifdef __KERNEL__
10
11/* Header files */
12#include <media/v4l2-dev.h>
13#include <linux/videodev2.h>
14#include <linux/clk.h>
15#include <linux/i2c.h>
16#include <media/v4l2-fh.h>
17#include <media/v4l2-ioctl.h>
18#include <media/v4l2-device.h>
19#include <media/videobuf-dma-contig.h>
20#include <media/davinci/vpfe_types.h>
21
22#define VPFE_CAPTURE_NUM_DECODERS        5
23
24/* Macros */
25#define VPFE_MAJOR_RELEASE              0
26#define VPFE_MINOR_RELEASE              0
27#define VPFE_BUILD                      1
28#define VPFE_CAPTURE_VERSION_CODE       ((VPFE_MAJOR_RELEASE << 16) | \
29					(VPFE_MINOR_RELEASE << 8)  | \
30					VPFE_BUILD)
31
32#define CAPTURE_DRV_NAME		"vpfe-capture"
33
34struct vpfe_pixel_format {
35	u32 pixelformat;
36	/* bytes per pixel */
37	int bpp;
38};
39
40struct vpfe_std_info {
41	int active_pixels;
42	int active_lines;
43	/* current frame format */
44	int frame_format;
45};
46
47struct vpfe_route {
48	u32 input;
49	u32 output;
50};
51
52struct vpfe_subdev_info {
53	/* Sub device name */
54	char name[32];
55	/* Sub device group id */
56	int grp_id;
57	/* Number of inputs supported */
58	int num_inputs;
59	/* inputs available at the sub device */
60	struct v4l2_input *inputs;
61	/* Sub dev routing information for each input */
62	struct vpfe_route *routes;
63	/* check if sub dev supports routing */
64	int can_route;
65	/* ccdc bus/interface configuration */
66	struct vpfe_hw_if_param ccdc_if_params;
67	/* i2c subdevice board info */
68	struct i2c_board_info board_info;
69};
70
71struct vpfe_config {
72	/* Number of sub devices connected to vpfe */
73	int num_subdevs;
74	/* i2c bus adapter no */
75	int i2c_adapter_id;
76	/* information about each subdev */
77	struct vpfe_subdev_info *sub_devs;
78	/* evm card info */
79	char *card_name;
80	/* ccdc name */
81	char *ccdc;
82	/* vpfe clock */
83	struct clk *vpssclk;
84	struct clk *slaveclk;
85	/* Function for Clearing the interrupt */
86	void (*clr_intr)(int vdint);
87};
88
89struct vpfe_device {
90	/* V4l2 specific parameters */
91	/* Identifies video device for this channel */
92	struct video_device video_dev;
93	/* sub devices */
94	struct v4l2_subdev **sd;
95	/* vpfe cfg */
96	struct vpfe_config *cfg;
97	/* V4l2 device */
98	struct v4l2_device v4l2_dev;
99	/* parent device */
100	struct device *pdev;
101	/* number of open instances of the channel */
102	u32 usrs;
103	/* Indicates id of the field which is being displayed */
104	u32 field_id;
105	/* flag to indicate whether decoder is initialized */
106	u8 initialized;
107	/* current interface type */
108	struct vpfe_hw_if_param vpfe_if_params;
109	/* ptr to currently selected sub device */
110	struct vpfe_subdev_info *current_subdev;
111	/* current input at the sub device */
112	int current_input;
113	/* Keeps track of the information about the standard */
114	struct vpfe_std_info std_info;
115	/* std index into std table */
116	int std_index;
117	/* CCDC IRQs used when CCDC/ISIF output to SDRAM */
118	unsigned int ccdc_irq0;
119	unsigned int ccdc_irq1;
120	/* number of buffers in fbuffers */
121	u32 numbuffers;
122	/* List of buffer pointers for storing frames */
123	u8 *fbuffers[VIDEO_MAX_FRAME];
124	/* Pointer pointing to current v4l2_buffer */
125	struct videobuf_buffer *cur_frm;
126	/* Pointer pointing to next v4l2_buffer */
127	struct videobuf_buffer *next_frm;
128	/*
129	 * This field keeps track of type of buffer exchange mechanism
130	 * user has selected
131	 */
132	enum v4l2_memory memory;
133	/* Used to store pixel format */
134	struct v4l2_format fmt;
135	/*
136	 * used when IMP is chained to store the crop window which
137	 * is different from the image window
138	 */
139	struct v4l2_rect crop;
140	/* Buffer queue used in video-buf */
141	struct videobuf_queue buffer_queue;
142	/* Queue of filled frames */
143	struct list_head dma_queue;
144	/* Used in video-buf */
145	spinlock_t irqlock;
146	/* IRQ lock for DMA queue */
147	spinlock_t dma_queue_lock;
148	/* lock used to access this structure */
149	struct mutex lock;
150	/* number of users performing IO */
151	u32 io_usrs;
152	/* Indicates whether streaming started */
153	u8 started;
154	/*
155	 * offset where second field starts from the starting of the
156	 * buffer for field separated YCbCr formats
157	 */
158	u32 field_off;
159};
160
161/* File handle structure */
162struct vpfe_fh {
163	struct v4l2_fh fh;
164	struct vpfe_device *vpfe_dev;
165	/* Indicates whether this file handle is doing IO */
166	u8 io_allowed;
167};
168
169struct vpfe_config_params {
170	u8 min_numbuffers;
171	u8 numbuffers;
172	u32 min_bufsize;
173	u32 device_bufsize;
174};
175
176#endif				/* End of __KERNEL__ */
177#endif				/* _DAVINCI_VPFE_H */
178