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6ffefff5 MK |
1 | /* |
2 | * Copyright (C) 2009 Texas Instruments Inc | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | */ | |
18 | ||
19 | #ifndef VPIF_CAPTURE_H | |
20 | #define VPIF_CAPTURE_H | |
21 | ||
22 | #ifdef __KERNEL__ | |
23 | ||
24 | /* Header files */ | |
25 | #include <linux/videodev2.h> | |
6ffefff5 MK |
26 | #include <media/v4l2-common.h> |
27 | #include <media/v4l2-device.h> | |
60aa38d8 | 28 | #include <media/videobuf2-dma-contig.h> |
e13c692b | 29 | #include <media/davinci/vpif_types.h> |
6ffefff5 MK |
30 | |
31 | #include "vpif.h" | |
32 | ||
33 | /* Macros */ | |
64dc3c1a | 34 | #define VPIF_CAPTURE_VERSION "0.0.2" |
6ffefff5 MK |
35 | |
36 | #define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ | |
37 | (V4L2_FIELD_NONE == field)) || \ | |
38 | (((V4L2_FIELD_INTERLACED == field) || \ | |
39 | (V4L2_FIELD_SEQ_TB == field)) || \ | |
40 | (V4L2_FIELD_SEQ_BT == field))) | |
41 | ||
42 | #define VPIF_CAPTURE_MAX_DEVICES 2 | |
43 | #define VPIF_VIDEO_INDEX 0 | |
44 | #define VPIF_NUMBER_OF_OBJECTS 1 | |
45 | ||
46 | /* Enumerated data type to give id to each device per channel */ | |
47 | enum vpif_channel_id { | |
48 | VPIF_CHANNEL0_VIDEO = 0, | |
49 | VPIF_CHANNEL1_VIDEO, | |
50 | }; | |
51 | ||
52 | struct video_obj { | |
53 | enum v4l2_field buf_field; | |
54 | /* Currently selected or default standard */ | |
55 | v4l2_std_id stdid; | |
0598c17b | 56 | struct v4l2_dv_timings dv_timings; |
6ffefff5 MK |
57 | }; |
58 | ||
60aa38d8 LP |
59 | struct vpif_cap_buffer { |
60 | struct vb2_buffer vb; | |
61 | struct list_head list; | |
62 | }; | |
63 | ||
6ffefff5 MK |
64 | struct common_obj { |
65 | /* Pointer pointing to current v4l2_buffer */ | |
60aa38d8 | 66 | struct vpif_cap_buffer *cur_frm; |
6ffefff5 | 67 | /* Pointer pointing to current v4l2_buffer */ |
60aa38d8 | 68 | struct vpif_cap_buffer *next_frm; |
6ffefff5 MK |
69 | /* |
70 | * This field keeps track of type of buffer exchange mechanism | |
71 | * user has selected | |
72 | */ | |
73 | enum v4l2_memory memory; | |
74 | /* Used to store pixel format */ | |
75 | struct v4l2_format fmt; | |
76 | /* Buffer queue used in video-buf */ | |
60aa38d8 LP |
77 | struct vb2_queue buffer_queue; |
78 | /* allocator-specific contexts for each plane */ | |
79 | struct vb2_alloc_ctx *alloc_ctx; | |
6ffefff5 MK |
80 | /* Queue of filled frames */ |
81 | struct list_head dma_queue; | |
82 | /* Used in video-buf */ | |
83 | spinlock_t irqlock; | |
84 | /* lock used to access this structure */ | |
85 | struct mutex lock; | |
86 | /* number of users performing IO */ | |
87 | u32 io_usrs; | |
88 | /* Indicates whether streaming started */ | |
89 | u8 started; | |
90 | /* Function pointer to set the addresses */ | |
91 | void (*set_addr) (unsigned long, unsigned long, unsigned long, | |
92 | unsigned long); | |
93 | /* offset where Y top starts from the starting of the buffer */ | |
94 | u32 ytop_off; | |
95 | /* offset where Y bottom starts from the starting of the buffer */ | |
96 | u32 ybtm_off; | |
97 | /* offset where C top starts from the starting of the buffer */ | |
98 | u32 ctop_off; | |
99 | /* offset where C bottom starts from the starting of the buffer */ | |
100 | u32 cbtm_off; | |
101 | /* Indicates width of the image data */ | |
102 | u32 width; | |
103 | /* Indicates height of the image data */ | |
104 | u32 height; | |
105 | }; | |
106 | ||
107 | struct channel_obj { | |
108 | /* Identifies video device for this channel */ | |
109 | struct video_device *video_dev; | |
110 | /* Used to keep track of state of the priority */ | |
111 | struct v4l2_prio_state prio; | |
112 | /* number of open instances of the channel */ | |
113 | int usrs; | |
114 | /* Indicates id of the field which is being displayed */ | |
115 | u32 field_id; | |
116 | /* flag to indicate whether decoder is initialized */ | |
117 | u8 initialized; | |
118 | /* Identifies channel */ | |
119 | enum vpif_channel_id channel_id; | |
6f47c6c6 HV |
120 | /* Current input */ |
121 | u32 input_idx; | |
178cce12 HV |
122 | /* subdev corresponding to the current input, may be NULL */ |
123 | struct v4l2_subdev *sd; | |
6ffefff5 MK |
124 | /* vpif configuration params */ |
125 | struct vpif_params vpifparams; | |
126 | /* common object array */ | |
127 | struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; | |
128 | /* video object */ | |
129 | struct video_obj video; | |
130 | }; | |
131 | ||
132 | /* File handle structure */ | |
133 | struct vpif_fh { | |
134 | /* pointer to channel object for opened device */ | |
135 | struct channel_obj *channel; | |
136 | /* Indicates whether this file handle is doing IO */ | |
137 | u8 io_allowed[VPIF_NUMBER_OF_OBJECTS]; | |
138 | /* Used to keep track priority of this instance */ | |
139 | enum v4l2_priority prio; | |
140 | /* Used to indicate channel is initialize or not */ | |
141 | u8 initialized; | |
142 | }; | |
143 | ||
144 | struct vpif_device { | |
145 | struct v4l2_device v4l2_dev; | |
146 | struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; | |
147 | struct v4l2_subdev **sd; | |
148 | }; | |
149 | ||
150 | struct vpif_config_params { | |
151 | u8 min_numbuffers; | |
152 | u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS]; | |
153 | s8 device_type; | |
154 | u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; | |
155 | u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; | |
156 | u8 default_device[VPIF_CAPTURE_NUM_CHANNELS]; | |
764af39a | 157 | u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS]; |
6ffefff5 MK |
158 | u8 max_device_type; |
159 | }; | |
822f0fd3 | 160 | |
6ffefff5 MK |
161 | #endif /* End of __KERNEL__ */ |
162 | #endif /* VPIF_CAPTURE_H */ |