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e7332e3a | 1 | /* |
0a63172a | 2 | * VPIF display header file |
e7332e3a C |
3 | * |
4 | * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation version 2. | |
9 | * | |
10 | * This program is distributed .as is. WITHOUT ANY WARRANTY of any | |
11 | * kind, whether express or implied; without even the implied warranty | |
12 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
16 | #ifndef DAVINCIHD_DISPLAY_H | |
17 | #define DAVINCIHD_DISPLAY_H | |
18 | ||
19 | /* Header files */ | |
20 | #include <linux/videodev2.h> | |
e7332e3a C |
21 | #include <media/v4l2-common.h> |
22 | #include <media/v4l2-device.h> | |
2401dd25 | 23 | #include <media/videobuf2-dma-contig.h> |
e13c692b | 24 | #include <media/davinci/vpif_types.h> |
e7332e3a C |
25 | |
26 | #include "vpif.h" | |
27 | ||
28 | /* Macros */ | |
64dc3c1a | 29 | #define VPIF_DISPLAY_VERSION "0.0.2" |
e7332e3a C |
30 | |
31 | #define VPIF_VALID_FIELD(field) \ | |
32 | (((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \ | |
33 | (((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \ | |
34 | (V4L2_FIELD_SEQ_BT == field))) | |
35 | ||
36 | #define VPIF_DISPLAY_MAX_DEVICES (2) | |
37 | #define VPIF_SLICED_BUF_SIZE (256) | |
38 | #define VPIF_SLICED_MAX_SERVICES (3) | |
39 | #define VPIF_VIDEO_INDEX (0) | |
40 | #define VPIF_VBI_INDEX (1) | |
41 | #define VPIF_HBI_INDEX (2) | |
42 | ||
43 | /* Setting it to 1 as HBI/VBI support yet to be added , else 3*/ | |
44 | #define VPIF_NUMOBJECTS (1) | |
45 | ||
46 | /* Macros */ | |
47 | #define ISALIGNED(a) (0 == ((a) & 7)) | |
48 | ||
49 | /* enumerated data types */ | |
50 | /* Enumerated data type to give id to each device per channel */ | |
51 | enum vpif_channel_id { | |
52 | VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */ | |
53 | VPIF_CHANNEL3_VIDEO, /* Channel3 Video */ | |
54 | }; | |
55 | ||
56 | /* structures */ | |
57 | ||
58 | struct video_obj { | |
59 | enum v4l2_field buf_field; | |
60 | u32 latest_only; /* indicate whether to return | |
61 | * most recent displayed frame only */ | |
62 | v4l2_std_id stdid; /* Currently selected or default | |
63 | * standard */ | |
0598c17b | 64 | struct v4l2_dv_timings dv_timings; |
e7332e3a C |
65 | }; |
66 | ||
2401dd25 LP |
67 | struct vpif_disp_buffer { |
68 | struct vb2_buffer vb; | |
69 | struct list_head list; | |
70 | }; | |
71 | ||
e7332e3a C |
72 | struct common_obj { |
73 | /* Buffer specific parameters */ | |
74 | u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for | |
75 | * storing frames */ | |
76 | u32 numbuffers; /* number of buffers */ | |
2401dd25 LP |
77 | struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current |
78 | * vb2_buffer */ | |
79 | struct vpif_disp_buffer *next_frm; /* Pointer pointing to next | |
80 | * vb2_buffer */ | |
e7332e3a C |
81 | enum v4l2_memory memory; /* This field keeps track of |
82 | * type of buffer exchange | |
83 | * method user has selected */ | |
84 | struct v4l2_format fmt; /* Used to store the format */ | |
2401dd25 | 85 | struct vb2_queue buffer_queue; /* Buffer queue used in |
e7332e3a | 86 | * video-buf */ |
2401dd25 LP |
87 | /* allocator-specific contexts for each plane */ |
88 | struct vb2_alloc_ctx *alloc_ctx; | |
89 | ||
e7332e3a C |
90 | struct list_head dma_queue; /* Queue of filled frames */ |
91 | spinlock_t irqlock; /* Used in video-buf */ | |
92 | ||
93 | /* channel specific parameters */ | |
94 | struct mutex lock; /* lock used to access this | |
95 | * structure */ | |
96 | u32 io_usrs; /* number of users performing | |
97 | * IO */ | |
98 | u8 started; /* Indicates whether streaming | |
99 | * started */ | |
100 | u32 ytop_off; /* offset of Y top from the | |
101 | * starting of the buffer */ | |
102 | u32 ybtm_off; /* offset of Y bottom from the | |
103 | * starting of the buffer */ | |
104 | u32 ctop_off; /* offset of C top from the | |
105 | * starting of the buffer */ | |
106 | u32 cbtm_off; /* offset of C bottom from the | |
107 | * starting of the buffer */ | |
108 | /* Function pointer to set the addresses */ | |
109 | void (*set_addr) (unsigned long, unsigned long, | |
110 | unsigned long, unsigned long); | |
111 | u32 height; | |
112 | u32 width; | |
113 | }; | |
114 | ||
115 | struct channel_obj { | |
116 | /* V4l2 specific parameters */ | |
117 | struct video_device *video_dev; /* Identifies video device for | |
118 | * this channel */ | |
119 | struct v4l2_prio_state prio; /* Used to keep track of state of | |
120 | * the priority */ | |
121 | atomic_t usrs; /* number of open instances of | |
122 | * the channel */ | |
123 | u32 field_id; /* Indicates id of the field | |
124 | * which is being displayed */ | |
125 | u8 initialized; /* flag to indicate whether | |
126 | * encoder is initialized */ | |
311673ee | 127 | u32 output_idx; /* Current output index */ |
882084ad | 128 | struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */ |
e7332e3a C |
129 | |
130 | enum vpif_channel_id channel_id;/* Identifies channel */ | |
131 | struct vpif_params vpifparams; | |
132 | struct common_obj common[VPIF_NUMOBJECTS]; | |
133 | struct video_obj video; | |
e7332e3a C |
134 | }; |
135 | ||
136 | /* File handle structure */ | |
137 | struct vpif_fh { | |
138 | struct channel_obj *channel; /* pointer to channel object for | |
139 | * opened device */ | |
140 | u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle | |
141 | * is doing IO */ | |
142 | enum v4l2_priority prio; /* Used to keep track priority of | |
143 | * this instance */ | |
144 | u8 initialized; /* Used to keep track of whether this | |
145 | * file handle has initialized | |
146 | * channel or not */ | |
147 | }; | |
148 | ||
149 | /* vpif device structure */ | |
150 | struct vpif_device { | |
151 | struct v4l2_device v4l2_dev; | |
152 | struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS]; | |
153 | struct v4l2_subdev **sd; | |
154 | ||
155 | }; | |
156 | ||
157 | struct vpif_config_params { | |
158 | u32 min_bufsize[VPIF_DISPLAY_NUM_CHANNELS]; | |
159 | u32 channel_bufsize[VPIF_DISPLAY_NUM_CHANNELS]; | |
160 | u8 numbuffers[VPIF_DISPLAY_NUM_CHANNELS]; | |
fc613d44 | 161 | u32 video_limit[VPIF_DISPLAY_NUM_CHANNELS]; |
e7332e3a C |
162 | u8 min_numbuffers; |
163 | }; | |
164 | ||
e7332e3a | 165 | #endif /* DAVINCIHD_DISPLAY_H */ |