1/* 2 * DM646x display header file 3 * 4 * Copyright (C) 2009 Texas Instruments Incorporated - http://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 DAVINCIHD_DISPLAY_H 17#define DAVINCIHD_DISPLAY_H 18 19/* Header files */ 20#include <linux/videodev2.h> 21#include <linux/version.h> 22#include <media/v4l2-common.h> 23#include <media/v4l2-device.h> 24#include <media/videobuf-core.h> 25#include <media/videobuf-dma-contig.h> 26 27#include "vpif.h" 28 29/* Macros */ 30#define VPIF_MAJOR_RELEASE (0) 31#define VPIF_MINOR_RELEASE (0) 32#define VPIF_BUILD (1) 33 34#define VPIF_DISPLAY_VERSION_CODE \ 35 ((VPIF_MAJOR_RELEASE << 16) | (VPIF_MINOR_RELEASE << 8) | VPIF_BUILD) 36 37#define VPIF_VALID_FIELD(field) \ 38 (((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \ 39 (((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \ 40 (V4L2_FIELD_SEQ_BT == field))) 41 42#define VPIF_DISPLAY_MAX_DEVICES (2) 43#define VPIF_SLICED_BUF_SIZE (256) 44#define VPIF_SLICED_MAX_SERVICES (3) 45#define VPIF_VIDEO_INDEX (0) 46#define VPIF_VBI_INDEX (1) 47#define VPIF_HBI_INDEX (2) 48 49/* Setting it to 1 as HBI/VBI support yet to be added , else 3*/ 50#define VPIF_NUMOBJECTS (1) 51 52/* Macros */ 53#define ISALIGNED(a) (0 == ((a) & 7)) 54 55/* enumerated data types */ 56/* Enumerated data type to give id to each device per channel */ 57enum vpif_channel_id { 58 VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */ 59 VPIF_CHANNEL3_VIDEO, /* Channel3 Video */ 60}; 61 62/* structures */ 63 64struct video_obj { 65 enum v4l2_field buf_field; 66 u32 latest_only; /* indicate whether to return 67 * most recent displayed frame only */ 68 v4l2_std_id stdid; /* Currently selected or default 69 * standard */ 70 u32 output_id; /* Current output id */ 71}; 72 73struct vbi_obj { 74 int num_services; 75 struct vpif_vbi_params vbiparams; /* vpif parameters for the raw 76 * vbi data */ 77}; 78 79struct common_obj { 80 /* Buffer specific parameters */ 81 u8 *fbuffers[VIDEO_MAX_FRAME]; /* List of buffer pointers for 82 * storing frames */ 83 u32 numbuffers; /* number of buffers */ 84 struct videobuf_buffer *cur_frm; /* Pointer pointing to current 85 * videobuf_buffer */ 86 struct videobuf_buffer *next_frm; /* Pointer pointing to next 87 * videobuf_buffer */ 88 enum v4l2_memory memory; /* This field keeps track of 89 * type of buffer exchange 90 * method user has selected */ 91 struct v4l2_format fmt; /* Used to store the format */ 92 struct videobuf_queue buffer_queue; /* Buffer queue used in 93 * video-buf */ 94 struct list_head dma_queue; /* Queue of filled frames */ 95 spinlock_t irqlock; /* Used in video-buf */ 96 97 /* channel specific parameters */ 98 struct mutex lock; /* lock used to access this 99 * structure */ 100 u32 io_usrs; /* number of users performing 101 * IO */ 102 u8 started; /* Indicates whether streaming 103 * started */ 104 u32 ytop_off; /* offset of Y top from the 105 * starting of the buffer */ 106 u32 ybtm_off; /* offset of Y bottom from the 107 * starting of the buffer */ 108 u32 ctop_off; /* offset of C top from the 109 * starting of the buffer */ 110 u32 cbtm_off; /* offset of C bottom from the 111 * starting of the buffer */ 112 /* Function pointer to set the addresses */ 113 void (*set_addr) (unsigned long, unsigned long, 114 unsigned long, unsigned long); 115 u32 height; 116 u32 width; 117}; 118 119struct channel_obj { 120 /* V4l2 specific parameters */ 121 struct video_device *video_dev; /* Identifies video device for 122 * this channel */ 123 struct v4l2_prio_state prio; /* Used to keep track of state of 124 * the priority */ 125 atomic_t usrs; /* number of open instances of 126 * the channel */ 127 u32 field_id; /* Indicates id of the field 128 * which is being displayed */ 129 u8 initialized; /* flag to indicate whether 130 * encoder is initialized */ 131 132 enum vpif_channel_id channel_id;/* Identifies channel */ 133 struct vpif_params vpifparams; 134 struct common_obj common[VPIF_NUMOBJECTS]; 135 struct video_obj video; 136 struct vbi_obj vbi; 137}; 138 139/* File handle structure */ 140struct vpif_fh { 141 struct channel_obj *channel; /* pointer to channel object for 142 * opened device */ 143 u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle 144 * is doing IO */ 145 enum v4l2_priority prio; /* Used to keep track priority of 146 * this instance */ 147 u8 initialized; /* Used to keep track of whether this 148 * file handle has initialized 149 * channel or not */ 150}; 151 152/* vpif device structure */ 153struct vpif_device { 154 struct v4l2_device v4l2_dev; 155 struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS]; 156 struct v4l2_subdev **sd; 157 158}; 159 160struct vpif_config_params { 161 u32 min_bufsize[VPIF_DISPLAY_NUM_CHANNELS]; 162 u32 channel_bufsize[VPIF_DISPLAY_NUM_CHANNELS]; 163 u8 numbuffers[VPIF_DISPLAY_NUM_CHANNELS]; 164 u8 min_numbuffers; 165}; 166 167/* Struct which keeps track of the line numbers for the sliced vbi service */ 168struct vpif_service_line { 169 u16 service_id; 170 u16 service_line[2]; 171 u16 enc_service_id; 172 u8 bytestowrite; 173}; 174 175#endif /* DAVINCIHD_DISPLAY_H */ 176