aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/platform/davinci/vpif_capture.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/platform/davinci/vpif_capture.h')
-rw-r--r--drivers/media/platform/davinci/vpif_capture.h168
1 files changed, 168 insertions, 0 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.h b/drivers/media/platform/davinci/vpif_capture.h
new file mode 100644
index 000000000000..d24efc17e4c8
--- /dev/null
+++ b/drivers/media/platform/davinci/vpif_capture.h
@@ -0,0 +1,168 @@
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>
26#include <media/v4l2-common.h>
27#include <media/v4l2-device.h>
28#include <media/videobuf2-dma-contig.h>
29#include <media/davinci/vpif_types.h>
30
31#include "vpif.h"
32
33/* Macros */
34#define VPIF_CAPTURE_VERSION "0.0.2"
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 */
47enum vpif_channel_id {
48 VPIF_CHANNEL0_VIDEO = 0,
49 VPIF_CHANNEL1_VIDEO,
50};
51
52struct video_obj {
53 enum v4l2_field buf_field;
54 /* Currently selected or default standard */
55 v4l2_std_id stdid;
56 struct v4l2_dv_timings dv_timings;
57 /* This is to track the last input that is passed to application */
58 u32 input_idx;
59};
60
61struct vpif_cap_buffer {
62 struct vb2_buffer vb;
63 struct list_head list;
64};
65
66struct common_obj {
67 /* Pointer pointing to current v4l2_buffer */
68 struct vpif_cap_buffer *cur_frm;
69 /* Pointer pointing to current v4l2_buffer */
70 struct vpif_cap_buffer *next_frm;
71 /*
72 * This field keeps track of type of buffer exchange mechanism
73 * user has selected
74 */
75 enum v4l2_memory memory;
76 /* Used to store pixel format */
77 struct v4l2_format fmt;
78 /* Buffer queue used in video-buf */
79 struct vb2_queue buffer_queue;
80 /* allocator-specific contexts for each plane */
81 struct vb2_alloc_ctx *alloc_ctx;
82 /* Queue of filled frames */
83 struct list_head dma_queue;
84 /* Used in video-buf */
85 spinlock_t irqlock;
86 /* lock used to access this structure */
87 struct mutex lock;
88 /* number of users performing IO */
89 u32 io_usrs;
90 /* Indicates whether streaming started */
91 u8 started;
92 /* Function pointer to set the addresses */
93 void (*set_addr) (unsigned long, unsigned long, unsigned long,
94 unsigned long);
95 /* offset where Y top starts from the starting of the buffer */
96 u32 ytop_off;
97 /* offset where Y bottom starts from the starting of the buffer */
98 u32 ybtm_off;
99 /* offset where C top starts from the starting of the buffer */
100 u32 ctop_off;
101 /* offset where C bottom starts from the starting of the buffer */
102 u32 cbtm_off;
103 /* Indicates width of the image data */
104 u32 width;
105 /* Indicates height of the image data */
106 u32 height;
107};
108
109struct channel_obj {
110 /* Identifies video device for this channel */
111 struct video_device *video_dev;
112 /* Used to keep track of state of the priority */
113 struct v4l2_prio_state prio;
114 /* number of open instances of the channel */
115 int usrs;
116 /* Indicates id of the field which is being displayed */
117 u32 field_id;
118 /* flag to indicate whether decoder is initialized */
119 u8 initialized;
120 /* Identifies channel */
121 enum vpif_channel_id channel_id;
122 /* index into sd table */
123 int curr_sd_index;
124 /* ptr to current sub device information */
125 struct vpif_subdev_info *curr_subdev_info;
126 /* vpif configuration params */
127 struct vpif_params vpifparams;
128 /* common object array */
129 struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
130 /* video object */
131 struct video_obj video;
132};
133
134/* File handle structure */
135struct vpif_fh {
136 /* pointer to channel object for opened device */
137 struct channel_obj *channel;
138 /* Indicates whether this file handle is doing IO */
139 u8 io_allowed[VPIF_NUMBER_OF_OBJECTS];
140 /* Used to keep track priority of this instance */
141 enum v4l2_priority prio;
142 /* Used to indicate channel is initialize or not */
143 u8 initialized;
144};
145
146struct vpif_device {
147 struct v4l2_device v4l2_dev;
148 struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
149 struct v4l2_subdev **sd;
150};
151
152struct vpif_config_params {
153 u8 min_numbuffers;
154 u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
155 s8 device_type;
156 u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
157 u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
158 u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
159 u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
160 u8 max_device_type;
161};
162/* Struct which keeps track of the line numbers for the sliced vbi service */
163struct vpif_service_line {
164 u16 service_id;
165 u16 service_line[2];
166};
167#endif /* End of __KERNEL__ */
168#endif /* VPIF_CAPTURE_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-02 14:12:04 -0500