1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * VPIF display header file 4 * 5 * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/ 6 */ 7 8 #ifndef VPIF_DISPLAY_H 9 #define VPIF_DISPLAY_H 10 11 /* Header files */ 12 #include <media/videobuf2-dma-contig.h> 13 #include <media/v4l2-device.h> 14 15 #include "vpif.h" 16 17 /* Macros */ 18 #define VPIF_DISPLAY_VERSION "0.0.2" 19 20 #define VPIF_VALID_FIELD(field) \ 21 (((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \ 22 (((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \ 23 (V4L2_FIELD_SEQ_BT == field))) 24 25 #define VPIF_DISPLAY_MAX_DEVICES (2) 26 #define VPIF_SLICED_BUF_SIZE (256) 27 #define VPIF_SLICED_MAX_SERVICES (3) 28 #define VPIF_VIDEO_INDEX (0) 29 #define VPIF_VBI_INDEX (1) 30 #define VPIF_HBI_INDEX (2) 31 32 /* Setting it to 1 as HBI/VBI support yet to be added , else 3*/ 33 #define VPIF_NUMOBJECTS (1) 34 35 /* Macros */ 36 #define ISALIGNED(a) (0 == ((a) & 7)) 37 38 /* enumerated data types */ 39 /* Enumerated data type to give id to each device per channel */ 40 enum vpif_channel_id { 41 VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */ 42 VPIF_CHANNEL3_VIDEO, /* Channel3 Video */ 43 }; 44 45 /* structures */ 46 47 struct video_obj { 48 enum v4l2_field buf_field; 49 u32 latest_only; /* indicate whether to return 50 * most recent displayed frame only */ 51 v4l2_std_id stdid; /* Currently selected or default 52 * standard */ 53 struct v4l2_dv_timings dv_timings; 54 }; 55 56 struct vpif_disp_buffer { 57 struct vb2_v4l2_buffer vb; 58 struct list_head list; 59 }; 60 61 struct common_obj { 62 struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current 63 * vb2_buffer */ 64 struct vpif_disp_buffer *next_frm; /* Pointer pointing to next 65 * vb2_buffer */ 66 struct v4l2_format fmt; /* Used to store the format */ 67 struct vb2_queue buffer_queue; /* Buffer queue used in vb2 */ 68 69 struct list_head dma_queue; /* Queue of filled frames */ 70 spinlock_t irqlock; /* Used for video buffer 71 * handling */ 72 73 /* channel specific parameters */ 74 struct mutex lock; /* lock used to access this 75 * structure */ 76 u32 ytop_off; /* offset of Y top from the 77 * starting of the buffer */ 78 u32 ybtm_off; /* offset of Y bottom from the 79 * starting of the buffer */ 80 u32 ctop_off; /* offset of C top from the 81 * starting of the buffer */ 82 u32 cbtm_off; /* offset of C bottom from the 83 * starting of the buffer */ 84 /* Function pointer to set the addresses */ 85 void (*set_addr)(unsigned long, unsigned long, 86 unsigned long, unsigned long); 87 u32 height; 88 u32 width; 89 }; 90 91 struct channel_obj { 92 /* V4l2 specific parameters */ 93 struct video_device video_dev; /* Identifies video device for 94 * this channel */ 95 u32 field_id; /* Indicates id of the field 96 * which is being displayed */ 97 u8 initialized; /* flag to indicate whether 98 * encoder is initialized */ 99 u32 output_idx; /* Current output index */ 100 struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */ 101 102 enum vpif_channel_id channel_id;/* Identifies channel */ 103 struct vpif_params vpifparams; 104 struct common_obj common[VPIF_NUMOBJECTS]; 105 struct video_obj video; 106 }; 107 108 /* vpif device structure */ 109 struct vpif_device { 110 struct v4l2_device v4l2_dev; 111 struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS]; 112 struct v4l2_subdev **sd; 113 struct vpif_display_config *config; 114 }; 115 116 #endif /* VPIF_DISPLAY_H */ 117