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#ifdef __KERNEL__ 23 24/* Header files */ 25#include <linux/videodev2.h> 26#include <linux/version.h> 27#include <media/v4l2-common.h> 28#include <media/v4l2-device.h> 29#include <media/videobuf-core.h> 30#include <media/videobuf-dma-contig.h> 31#include <mach/dm646x.h> 32 33#include "vpif.h" 34 35/* Macros */ 36#define VPIF_MAJOR_RELEASE 0 37#define VPIF_MINOR_RELEASE 0 38#define VPIF_BUILD 1 39#define VPIF_CAPTURE_VERSION_CODE ((VPIF_MAJOR_RELEASE << 16) | \ 40 (VPIF_MINOR_RELEASE << 8) | VPIF_BUILD) 41 42#define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ 43 (V4L2_FIELD_NONE == field)) || \ 44 (((V4L2_FIELD_INTERLACED == field) || \ 45 (V4L2_FIELD_SEQ_TB == field)) || \ 46 (V4L2_FIELD_SEQ_BT == field))) 47 48#define VPIF_CAPTURE_MAX_DEVICES 2 49#define VPIF_VIDEO_INDEX 0 50#define VPIF_NUMBER_OF_OBJECTS 1 51 52/* Enumerated data type to give id to each device per channel */ 53enum vpif_channel_id { 54 VPIF_CHANNEL0_VIDEO = 0, 55 VPIF_CHANNEL1_VIDEO, 56}; 57 58struct video_obj { 59 enum v4l2_field buf_field; 60 /* Currently selected or default standard */ 61 v4l2_std_id stdid; 62 u32 dv_preset; 63 struct v4l2_bt_timings bt_timings; 64 /* This is to track the last input that is passed to application */ 65 u32 input_idx; 66}; 67 68struct common_obj { 69 /* Pointer pointing to current v4l2_buffer */ 70 struct videobuf_buffer *cur_frm; 71 /* Pointer pointing to current v4l2_buffer */ 72 struct videobuf_buffer *next_frm; 73 /* 74 * This field keeps track of type of buffer exchange mechanism 75 * user has selected 76 */ 77 enum v4l2_memory memory; 78 /* Used to store pixel format */ 79 struct v4l2_format fmt; 80 /* Buffer queue used in video-buf */ 81 struct videobuf_queue buffer_queue; 82 /* Queue of filled frames */ 83 struct list_head dma_queue; 84 /* Used in video-buf */ 85 spinlock_t irqlock; 86 /* lock used to access this structure */ 87 struct mutex lock; 88 /* number of users performing IO */ 89 u32 io_usrs; 90 /* Indicates whether streaming started */ 91 u8 started; 92 /* Function pointer to set the addresses */ 93 void (*set_addr) (unsigned long, unsigned long, unsigned long, 94 unsigned long); 95 /* offset where Y top starts from the starting of the buffer */ 96 u32 ytop_off; 97 /* offset where Y bottom starts from the starting of the buffer */ 98 u32 ybtm_off; 99 /* offset where C top starts from the starting of the buffer */ 100 u32 ctop_off; 101 /* offset where C bottom starts from the starting of the buffer */ 102 u32 cbtm_off; 103 /* Indicates width of the image data */ 104 u32 width; 105 /* Indicates height of the image data */ 106 u32 height; 107}; 108 109struct channel_obj { 110 /* Identifies video device for this channel */ 111 struct video_device *video_dev; 112 /* Used to keep track of state of the priority */ 113 struct v4l2_prio_state prio; 114 /* number of open instances of the channel */ 115 int usrs; 116 /* Indicates id of the field which is being displayed */ 117 u32 field_id; 118 /* flag to indicate whether decoder is initialized */ 119 u8 initialized; 120 /* Identifies channel */ 121 enum vpif_channel_id channel_id; 122 /* index into sd table */ 123 int curr_sd_index; 124 /* ptr to current sub device information */ 125 struct vpif_subdev_info *curr_subdev_info; 126 /* vpif configuration params */ 127 struct vpif_params vpifparams; 128 /* common object array */ 129 struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; 130 /* video object */ 131 struct video_obj video; 132}; 133 134/* File handle structure */ 135struct vpif_fh { 136 /* pointer to channel object for opened device */ 137 struct channel_obj *channel; 138 /* Indicates whether this file handle is doing IO */ 139 u8 io_allowed[VPIF_NUMBER_OF_OBJECTS]; 140 /* Used to keep track priority of this instance */ 141 enum v4l2_priority prio; 142 /* Used to indicate channel is initialize or not */ 143 u8 initialized; 144}; 145 146struct vpif_device { 147 struct v4l2_device v4l2_dev; 148 struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; 149 struct v4l2_subdev **sd; 150}; 151 152struct vpif_config_params { 153 u8 min_numbuffers; 154 u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS]; 155 s8 device_type; 156 u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; 157 u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; 158 u8 default_device[VPIF_CAPTURE_NUM_CHANNELS]; 159 u8 max_device_type; 160}; 161/* Struct which keeps track of the line numbers for the sliced vbi service */ 162struct vpif_service_line { 163 u16 service_id; 164 u16 service_line[2]; 165}; 166#endif /* End of __KERNEL__ */ 167#endif /* VPIF_CAPTURE_H */ 168