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