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Diffstat (limited to 'drivers/media/video/davinci/vpif_display.h')
-rw-r--r--drivers/media/video/davinci/vpif_display.h171
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/media/video/davinci/vpif_display.h b/drivers/media/video/davinci/vpif_display.h
new file mode 100644
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+++ b/drivers/media/video/davinci/vpif_display.h
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1/*
2 * DM646x display header file
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>
21#include <media/v4l2-common.h>
22#include <media/v4l2-device.h>
23#include <media/videobuf-core.h>
24#include <media/videobuf-dma-contig.h>
25
26#include "vpif.h"
27
28/* Macros */
29#define VPIF_DISPLAY_VERSION "0.0.2"
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 */
51enum vpif_channel_id {
52 VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */
53 VPIF_CHANNEL3_VIDEO, /* Channel3 Video */
54};
55
56/* structures */
57
58struct 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 */
64 u32 dv_preset;
65 struct v4l2_bt_timings bt_timings;
66 u32 output_id; /* Current output id */
67};
68
69struct vbi_obj {
70 int num_services;
71 struct vpif_vbi_params vbiparams; /* vpif parameters for the raw
72 * vbi data */
73};
74
75struct common_obj {
76 /* Buffer specific parameters */
77 u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for
78 * storing frames */
79 u32 numbuffers; /* number of buffers */
80 struct videobuf_buffer *cur_frm; /* Pointer pointing to current
81 * videobuf_buffer */
82 struct videobuf_buffer *next_frm; /* Pointer pointing to next
83 * videobuf_buffer */
84 enum v4l2_memory memory; /* This field keeps track of
85 * type of buffer exchange
86 * method user has selected */
87 struct v4l2_format fmt; /* Used to store the format */
88 struct videobuf_queue buffer_queue; /* Buffer queue used in
89 * video-buf */
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
115struct 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 */
127
128 enum vpif_channel_id channel_id;/* Identifies channel */
129 struct vpif_params vpifparams;
130 struct common_obj common[VPIF_NUMOBJECTS];
131 struct video_obj video;
132 struct vbi_obj vbi;
133};
134
135/* File handle structure */
136struct vpif_fh {
137 struct channel_obj *channel; /* pointer to channel object for
138 * opened device */
139 u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle
140 * is doing IO */
141 enum v4l2_priority prio; /* Used to keep track priority of
142 * this instance */
143 u8 initialized; /* Used to keep track of whether this
144 * file handle has initialized
145 * channel or not */
146};
147
148/* vpif device structure */
149struct vpif_device {
150 struct v4l2_device v4l2_dev;
151 struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
152 struct v4l2_subdev **sd;
153
154};
155
156struct vpif_config_params {
157 u32 min_bufsize[VPIF_DISPLAY_NUM_CHANNELS];
158 u32 channel_bufsize[VPIF_DISPLAY_NUM_CHANNELS];
159 u8 numbuffers[VPIF_DISPLAY_NUM_CHANNELS];
160 u8 min_numbuffers;
161};
162
163/* Struct which keeps track of the line numbers for the sliced vbi service */
164struct vpif_service_line {
165 u16 service_id;
166 u16 service_line[2];
167 u16 enc_service_id;
168 u8 bytestowrite;
169};
170
171#endif /* DAVINCIHD_DISPLAY_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-21 14:27:06 -0400