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124 lines
3.6 KiB
124 lines
3.6 KiB
/* |
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* VPIF display header file |
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* |
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* Copyright (C) 2009 Texas Instruments Incorporated - https://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 vpif_display_config *config; |
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}; |
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#endif /* VPIF_DISPLAY_H */
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