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 15 #ifndef VPIF_CAPTURE_H 16 #define VPIF_CAPTURE_H 17 18 /* Header files */ 19 #include <media/videobuf2-dma-contig.h> 20 #include <media/v4l2-device.h> 21 22 #include "vpif.h" 23 24 /* Macros */ 25 #define VPIF_CAPTURE_VERSION "0.0.2" 26 27 #define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ 28 (V4L2_FIELD_NONE == field)) || \ 29 (((V4L2_FIELD_INTERLACED == field) || \ 30 (V4L2_FIELD_SEQ_TB == field)) || \ 31 (V4L2_FIELD_SEQ_BT == field))) 32 33 #define VPIF_CAPTURE_MAX_DEVICES 2 34 #define VPIF_VIDEO_INDEX 0 35 #define VPIF_NUMBER_OF_OBJECTS 1 36 37 /* Enumerated data type to give id to each device per channel */ 38 enum vpif_channel_id { 39 VPIF_CHANNEL0_VIDEO = 0, 40 VPIF_CHANNEL1_VIDEO, 41 }; 42 43 struct video_obj { 44 enum v4l2_field buf_field; 45 /* Currently selected or default standard */ 46 v4l2_std_id stdid; 47 struct v4l2_dv_timings dv_timings; 48 }; 49 50 struct vpif_cap_buffer { 51 struct vb2_v4l2_buffer vb; 52 struct list_head list; 53 }; 54 55 struct common_obj { 56 /* Pointer pointing to current v4l2_buffer */ 57 struct vpif_cap_buffer *cur_frm; 58 /* Pointer pointing to current v4l2_buffer */ 59 struct vpif_cap_buffer *next_frm; 60 /* Used to store pixel format */ 61 struct v4l2_format fmt; 62 /* Buffer queue used in video-buf */ 63 struct vb2_queue buffer_queue; 64 /* Queue of filled frames */ 65 struct list_head dma_queue; 66 /* Protects the dma_queue field */ 67 spinlock_t irqlock; 68 /* lock used to access this structure */ 69 struct mutex lock; 70 /* Function pointer to set the addresses */ 71 void (*set_addr) (unsigned long, unsigned long, unsigned long, 72 unsigned long); 73 /* offset where Y top starts from the starting of the buffer */ 74 u32 ytop_off; 75 /* offset where Y bottom starts from the starting of the buffer */ 76 u32 ybtm_off; 77 /* offset where C top starts from the starting of the buffer */ 78 u32 ctop_off; 79 /* offset where C bottom starts from the starting of the buffer */ 80 u32 cbtm_off; 81 /* Indicates width of the image data */ 82 u32 width; 83 /* Indicates height of the image data */ 84 u32 height; 85 }; 86 87 struct channel_obj { 88 /* Identifies video device for this channel */ 89 struct video_device video_dev; 90 /* Indicates id of the field which is being displayed */ 91 u32 field_id; 92 /* flag to indicate whether decoder is initialized */ 93 u8 initialized; 94 /* Identifies channel */ 95 enum vpif_channel_id channel_id; 96 /* Current input */ 97 u32 input_idx; 98 /* subdev corresponding to the current input, may be NULL */ 99 struct v4l2_subdev *sd; 100 /* vpif configuration params */ 101 struct vpif_params vpifparams; 102 /* common object array */ 103 struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; 104 /* video object */ 105 struct video_obj video; 106 }; 107 108 struct vpif_device { 109 struct v4l2_device v4l2_dev; 110 struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; 111 struct v4l2_subdev **sd; 112 struct v4l2_async_notifier notifier; 113 struct vpif_capture_config *config; 114 }; 115 116 #endif /* VPIF_CAPTURE_H */ 117