126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
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/*
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* VPIF display header file
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*
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* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed .as is. WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef VPIF_DISPLAY_H
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#define VPIF_DISPLAY_H
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/* Header files */
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#include <media/videobuf2-dma-contig.h>
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#include <media/v4l2-device.h>
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#include "vpif.h"
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/* Macros */
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#define VPIF_DISPLAY_VERSION "0.0.2"
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#define VPIF_VALID_FIELD(field) \
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(((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \
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(((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \
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(V4L2_FIELD_SEQ_BT == field)))
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#define VPIF_DISPLAY_MAX_DEVICES (2)
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#define VPIF_SLICED_BUF_SIZE (256)
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#define VPIF_SLICED_MAX_SERVICES (3)
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#define VPIF_VIDEO_INDEX (0)
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#define VPIF_VBI_INDEX (1)
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#define VPIF_HBI_INDEX (2)
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/* Setting it to 1 as HBI/VBI support yet to be added , else 3*/
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#define VPIF_NUMOBJECTS (1)
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/* Macros */
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#define ISALIGNED(a) (0 == ((a) & 7))
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/* enumerated data types */
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/* Enumerated data type to give id to each device per channel */
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enum vpif_channel_id {
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VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */
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VPIF_CHANNEL3_VIDEO, /* Channel3 Video */
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};
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/* structures */
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struct video_obj {
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enum v4l2_field buf_field;
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u32 latest_only; /* indicate whether to return
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* most recent displayed frame only */
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v4l2_std_id stdid; /* Currently selected or default
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* standard */
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struct v4l2_dv_timings dv_timings;
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};
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struct vpif_disp_buffer {
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struct vb2_v4l2_buffer vb;
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struct list_head list;
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};
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struct common_obj {
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struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current
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* vb2_buffer */
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struct vpif_disp_buffer *next_frm; /* Pointer pointing to next
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* vb2_buffer */
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struct v4l2_format fmt; /* Used to store the format */
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struct vb2_queue buffer_queue; /* Buffer queue used in
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* video-buf */
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struct list_head dma_queue; /* Queue of filled frames */
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spinlock_t irqlock; /* Used in video-buf */
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/* channel specific parameters */
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struct mutex lock; /* lock used to access this
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* structure */
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u32 ytop_off; /* offset of Y top from the
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* starting of the buffer */
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u32 ybtm_off; /* offset of Y bottom from the
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* starting of the buffer */
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u32 ctop_off; /* offset of C top from the
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* starting of the buffer */
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u32 cbtm_off; /* offset of C bottom from the
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* starting of the buffer */
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/* Function pointer to set the addresses */
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void (*set_addr)(unsigned long, unsigned long,
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unsigned long, unsigned long);
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u32 height;
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u32 width;
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};
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struct channel_obj {
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/* V4l2 specific parameters */
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struct video_device video_dev; /* Identifies video device for
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* this channel */
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u32 field_id; /* Indicates id of the field
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* which is being displayed */
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u8 initialized; /* flag to indicate whether
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* encoder is initialized */
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u32 output_idx; /* Current output index */
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struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */
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enum vpif_channel_id channel_id;/* Identifies channel */
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struct vpif_params vpifparams;
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struct common_obj common[VPIF_NUMOBJECTS];
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struct video_obj video;
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};
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/* vpif device structure */
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struct vpif_device {
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struct v4l2_device v4l2_dev;
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struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
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struct v4l2_subdev **sd;
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struct v4l2_async_notifier notifier;
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struct vpif_display_config *config;
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};
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#endif /* VPIF_DISPLAY_H */
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