2 * VPIF display header file
4 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
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.
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.
16 #ifndef DAVINCIHD_DISPLAY_H
17 #define DAVINCIHD_DISPLAY_H
20 #include <linux/videodev2.h>
21 #include <media/v4l2-common.h>
22 #include <media/v4l2-device.h>
23 #include <media/videobuf2-dma-contig.h>
24 #include <media/davinci/vpif_types.h>
29 #define VPIF_DISPLAY_VERSION "0.0.2"
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)))
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)
43 /* Setting it to 1 as HBI/VBI support yet to be added , else 3*/
44 #define VPIF_NUMOBJECTS (1)
47 #define ISALIGNED(a) (0 == ((a) & 7))
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 */
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
64 struct v4l2_dv_timings dv_timings;
65 u32 output_id; /* Current output id */
70 struct vpif_vbi_params vbiparams; /* vpif parameters for the raw
74 struct vpif_disp_buffer {
76 struct list_head list;
80 /* Buffer specific parameters */
81 u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for
83 u32 numbuffers; /* number of buffers */
84 struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current
86 struct vpif_disp_buffer *next_frm; /* Pointer pointing to next
88 enum v4l2_memory memory; /* This field keeps track of
89 * type of buffer exchange
90 * method user has selected */
91 struct v4l2_format fmt; /* Used to store the format */
92 struct vb2_queue buffer_queue; /* Buffer queue used in
94 /* allocator-specific contexts for each plane */
95 struct vb2_alloc_ctx *alloc_ctx;
97 struct list_head dma_queue; /* Queue of filled frames */
98 spinlock_t irqlock; /* Used in video-buf */
100 /* channel specific parameters */
101 struct mutex lock; /* lock used to access this
103 u32 io_usrs; /* number of users performing
105 u8 started; /* Indicates whether streaming
107 u32 ytop_off; /* offset of Y top from the
108 * starting of the buffer */
109 u32 ybtm_off; /* offset of Y bottom from the
110 * starting of the buffer */
111 u32 ctop_off; /* offset of C top from the
112 * starting of the buffer */
113 u32 cbtm_off; /* offset of C bottom from the
114 * starting of the buffer */
115 /* Function pointer to set the addresses */
116 void (*set_addr) (unsigned long, unsigned long,
117 unsigned long, unsigned long);
123 /* V4l2 specific parameters */
124 struct video_device *video_dev; /* Identifies video device for
126 struct v4l2_prio_state prio; /* Used to keep track of state of
128 atomic_t usrs; /* number of open instances of
130 u32 field_id; /* Indicates id of the field
131 * which is being displayed */
132 u8 initialized; /* flag to indicate whether
133 * encoder is initialized */
135 enum vpif_channel_id channel_id;/* Identifies channel */
136 struct vpif_params vpifparams;
137 struct common_obj common[VPIF_NUMOBJECTS];
138 struct video_obj video;
142 /* File handle structure */
144 struct channel_obj *channel; /* pointer to channel object for
146 u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle
148 enum v4l2_priority prio; /* Used to keep track priority of
150 u8 initialized; /* Used to keep track of whether this
151 * file handle has initialized
155 /* vpif device structure */
157 struct v4l2_device v4l2_dev;
158 struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
159 struct v4l2_subdev **sd;
163 struct vpif_config_params {
164 u32 min_bufsize[VPIF_DISPLAY_NUM_CHANNELS];
165 u32 channel_bufsize[VPIF_DISPLAY_NUM_CHANNELS];
166 u8 numbuffers[VPIF_DISPLAY_NUM_CHANNELS];
167 u32 video_limit[VPIF_DISPLAY_NUM_CHANNELS];
171 /* Struct which keeps track of the line numbers for the sliced vbi service */
172 struct vpif_service_line {
179 #endif /* DAVINCIHD_DISPLAY_H */