1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /* * VPIF display header file * * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation version 2. * * This program is distributed .as is. WITHOUT ANY WARRANTY of any * kind, whether express or implied; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef VPIF_DISPLAY_H #define VPIF_DISPLAY_H /* Header files */ #include <media/videobuf2-dma-contig.h> #include <media/v4l2-device.h> #include "vpif.h" /* Macros */ #define VPIF_DISPLAY_VERSION "0.0.2" #define VPIF_VALID_FIELD(field) \ (((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \ (((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \ (V4L2_FIELD_SEQ_BT == field))) #define VPIF_DISPLAY_MAX_DEVICES (2) #define VPIF_SLICED_BUF_SIZE (256) #define VPIF_SLICED_MAX_SERVICES (3) #define VPIF_VIDEO_INDEX (0) #define VPIF_VBI_INDEX (1) #define VPIF_HBI_INDEX (2) /* Setting it to 1 as HBI/VBI support yet to be added , else 3*/ #define VPIF_NUMOBJECTS (1) /* Macros */ #define ISALIGNED(a) (0 == ((a) & 7)) /* enumerated data types */ /* Enumerated data type to give id to each device per channel */ enum vpif_channel_id { VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */ VPIF_CHANNEL3_VIDEO, /* Channel3 Video */ }; /* structures */ struct video_obj { enum v4l2_field buf_field; u32 latest_only; /* indicate whether to return * most recent displayed frame only */ v4l2_std_id stdid; /* Currently selected or default * standard */ struct v4l2_dv_timings dv_timings; }; struct vpif_disp_buffer { struct vb2_v4l2_buffer vb; struct list_head list; }; struct common_obj { struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current * vb2_buffer */ struct vpif_disp_buffer *next_frm; /* Pointer pointing to next * vb2_buffer */ struct v4l2_format fmt; /* Used to store the format */ struct vb2_queue buffer_queue; /* Buffer queue used in * video-buf */ struct list_head dma_queue; /* Queue of filled frames */ spinlock_t irqlock; /* Used in video-buf */ /* channel specific parameters */ struct mutex lock; /* lock used to access this * structure */ u32 ytop_off; /* offset of Y top from the * starting of the buffer */ u32 ybtm_off; /* offset of Y bottom from the * starting of the buffer */ u32 ctop_off; /* offset of C top from the * starting of the buffer */ u32 cbtm_off; /* offset of C bottom from the * starting of the buffer */ /* Function pointer to set the addresses */ void (*set_addr)(unsigned long, unsigned long, unsigned long, unsigned long); u32 height; u32 width; }; struct channel_obj { /* V4l2 specific parameters */ struct video_device video_dev; /* Identifies video device for * this channel */ u32 field_id; /* Indicates id of the field * which is being displayed */ u8 initialized; /* flag to indicate whether * encoder is initialized */ u32 output_idx; /* Current output index */ struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */ enum vpif_channel_id channel_id;/* Identifies channel */ struct vpif_params vpifparams; struct common_obj common[VPIF_NUMOBJECTS]; struct video_obj video; }; /* vpif device structure */ struct vpif_device { struct v4l2_device v4l2_dev; struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS]; struct v4l2_subdev **sd; struct v4l2_async_notifier notifier; struct vpif_display_config *config; }; #endif /* VPIF_DISPLAY_H */ |