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 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 */ 18 19 #ifndef VPIF_CAPTURE_H 20 #define VPIF_CAPTURE_H 21 22 /* Header files */ 23 #include <media/videobuf2-dma-contig.h> 24 #include <media/v4l2-device.h> 25 26 #include "vpif.h" 27 28 /* Macros */ 29 #define VPIF_CAPTURE_VERSION "0.0.2" 30 31 #define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ 32 (V4L2_FIELD_NONE == field)) || \ 33 (((V4L2_FIELD_INTERLACED == field) || \ 34 (V4L2_FIELD_SEQ_TB == field)) || \ 35 (V4L2_FIELD_SEQ_BT == field))) 36 37 #define VPIF_CAPTURE_MAX_DEVICES 2 38 #define VPIF_VIDEO_INDEX 0 39 #define VPIF_NUMBER_OF_OBJECTS 1 40 41 /* Enumerated data type to give id to each device per channel */ 42 enum vpif_channel_id { 43 VPIF_CHANNEL0_VIDEO = 0, 44 VPIF_CHANNEL1_VIDEO, 45 }; 46 47 struct video_obj { 48 enum v4l2_field buf_field; 49 /* Currently selected or default standard */ 50 v4l2_std_id stdid; 51 struct v4l2_dv_timings dv_timings; 52 }; 53 54 struct vpif_cap_buffer { 55 struct vb2_v4l2_buffer vb; 56 struct list_head list; 57 }; 58 59 struct common_obj { 60 /* Pointer pointing to current v4l2_buffer */ 61 struct vpif_cap_buffer *cur_frm; 62 /* Pointer pointing to current v4l2_buffer */ 63 struct vpif_cap_buffer *next_frm; 64 /* Used to store pixel format */ 65 struct v4l2_format fmt; 66 /* Buffer queue used in video-buf */ 67 struct vb2_queue buffer_queue; 68 /* allocator-specific contexts for each plane */ 69 struct vb2_alloc_ctx *alloc_ctx; 70 /* Queue of filled frames */ 71 struct list_head dma_queue; 72 /* Used in video-buf */ 73 spinlock_t irqlock; 74 /* lock used to access this structure */ 75 struct mutex lock; 76 /* Function pointer to set the addresses */ 77 void (*set_addr) (unsigned long, unsigned long, unsigned long, 78 unsigned long); 79 /* offset where Y top starts from the starting of the buffer */ 80 u32 ytop_off; 81 /* offset where Y bottom starts from the starting of the buffer */ 82 u32 ybtm_off; 83 /* offset where C top starts from the starting of the buffer */ 84 u32 ctop_off; 85 /* offset where C bottom starts from the starting of the buffer */ 86 u32 cbtm_off; 87 /* Indicates width of the image data */ 88 u32 width; 89 /* Indicates height of the image data */ 90 u32 height; 91 }; 92 93 struct channel_obj { 94 /* Identifies video device for this channel */ 95 struct video_device video_dev; 96 /* Indicates id of the field which is being displayed */ 97 u32 field_id; 98 /* flag to indicate whether decoder is initialized */ 99 u8 initialized; 100 /* Identifies channel */ 101 enum vpif_channel_id channel_id; 102 /* Current input */ 103 u32 input_idx; 104 /* subdev corresponding to the current input, may be NULL */ 105 struct v4l2_subdev *sd; 106 /* vpif configuration params */ 107 struct vpif_params vpifparams; 108 /* common object array */ 109 struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; 110 /* video object */ 111 struct video_obj video; 112 }; 113 114 struct vpif_device { 115 struct v4l2_device v4l2_dev; 116 struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; 117 struct v4l2_subdev **sd; 118 struct v4l2_async_notifier notifier; 119 struct vpif_capture_config *config; 120 }; 121 122 #endif /* VPIF_CAPTURE_H */ 123