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
34 struct vpfe_pixel_format {
35 u32 pixelformat;
36 /* bytes per pixel */
37 int bpp;
38 };
39
40 struct vpfe_std_info {
41 int active_pixels;
42 int active_lines;
43 /* current frame format */
44 int frame_format;
45 };
46
47 struct vpfe_route {
48 u32 input;
49 u32 output;
50 };
51
52 struct 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
71 struct 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
89 struct 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 */
162 struct 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
169 struct 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 */