| /* |
| * Copyright (C) 2009 Texas Instruments Inc |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #ifndef VPIF_CAPTURE_H |
| #define VPIF_CAPTURE_H |
| |
| #ifdef __KERNEL__ |
| |
| /* Header files */ |
| #include <linux/videodev2.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-device.h> |
| #include <media/videobuf2-dma-contig.h> |
| #include <media/davinci/vpif_types.h> |
| |
| #include "vpif.h" |
| |
| /* Macros */ |
| #define VPIF_CAPTURE_VERSION "0.0.2" |
| |
| #define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ |
| (V4L2_FIELD_NONE == field)) || \ |
| (((V4L2_FIELD_INTERLACED == field) || \ |
| (V4L2_FIELD_SEQ_TB == field)) || \ |
| (V4L2_FIELD_SEQ_BT == field))) |
| |
| #define VPIF_CAPTURE_MAX_DEVICES 2 |
| #define VPIF_VIDEO_INDEX 0 |
| #define VPIF_NUMBER_OF_OBJECTS 1 |
| |
| /* Enumerated data type to give id to each device per channel */ |
| enum vpif_channel_id { |
| VPIF_CHANNEL0_VIDEO = 0, |
| VPIF_CHANNEL1_VIDEO, |
| }; |
| |
| struct video_obj { |
| enum v4l2_field buf_field; |
| /* Currently selected or default standard */ |
| v4l2_std_id stdid; |
| struct v4l2_dv_timings dv_timings; |
| /* This is to track the last input that is passed to application */ |
| u32 input_idx; |
| }; |
| |
| struct vpif_cap_buffer { |
| struct vb2_buffer vb; |
| struct list_head list; |
| }; |
| |
| struct common_obj { |
| /* Pointer pointing to current v4l2_buffer */ |
| struct vpif_cap_buffer *cur_frm; |
| /* Pointer pointing to current v4l2_buffer */ |
| struct vpif_cap_buffer *next_frm; |
| /* |
| * This field keeps track of type of buffer exchange mechanism |
| * user has selected |
| */ |
| enum v4l2_memory memory; |
| /* Used to store pixel format */ |
| struct v4l2_format fmt; |
| /* Buffer queue used in video-buf */ |
| struct vb2_queue buffer_queue; |
| /* allocator-specific contexts for each plane */ |
| struct vb2_alloc_ctx *alloc_ctx; |
| /* Queue of filled frames */ |
| struct list_head dma_queue; |
| /* Used in video-buf */ |
| spinlock_t irqlock; |
| /* lock used to access this structure */ |
| struct mutex lock; |
| /* number of users performing IO */ |
| u32 io_usrs; |
| /* Indicates whether streaming started */ |
| u8 started; |
| /* Function pointer to set the addresses */ |
| void (*set_addr) (unsigned long, unsigned long, unsigned long, |
| unsigned long); |
| /* offset where Y top starts from the starting of the buffer */ |
| u32 ytop_off; |
| /* offset where Y bottom starts from the starting of the buffer */ |
| u32 ybtm_off; |
| /* offset where C top starts from the starting of the buffer */ |
| u32 ctop_off; |
| /* offset where C bottom starts from the starting of the buffer */ |
| u32 cbtm_off; |
| /* Indicates width of the image data */ |
| u32 width; |
| /* Indicates height of the image data */ |
| u32 height; |
| }; |
| |
| struct channel_obj { |
| /* Identifies video device for this channel */ |
| struct video_device *video_dev; |
| /* Used to keep track of state of the priority */ |
| struct v4l2_prio_state prio; |
| /* number of open instances of the channel */ |
| int usrs; |
| /* Indicates id of the field which is being displayed */ |
| u32 field_id; |
| /* flag to indicate whether decoder is initialized */ |
| u8 initialized; |
| /* Identifies channel */ |
| enum vpif_channel_id channel_id; |
| /* index into sd table */ |
| int curr_sd_index; |
| /* ptr to current sub device information */ |
| struct vpif_subdev_info *curr_subdev_info; |
| /* vpif configuration params */ |
| struct vpif_params vpifparams; |
| /* common object array */ |
| struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; |
| /* video object */ |
| struct video_obj video; |
| }; |
| |
| /* File handle structure */ |
| struct vpif_fh { |
| /* pointer to channel object for opened device */ |
| struct channel_obj *channel; |
| /* Indicates whether this file handle is doing IO */ |
| u8 io_allowed[VPIF_NUMBER_OF_OBJECTS]; |
| /* Used to keep track priority of this instance */ |
| enum v4l2_priority prio; |
| /* Used to indicate channel is initialize or not */ |
| u8 initialized; |
| }; |
| |
| struct vpif_device { |
| struct v4l2_device v4l2_dev; |
| struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; |
| struct v4l2_subdev **sd; |
| }; |
| |
| struct vpif_config_params { |
| u8 min_numbuffers; |
| u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS]; |
| s8 device_type; |
| u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; |
| u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; |
| u8 default_device[VPIF_CAPTURE_NUM_CHANNELS]; |
| u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS]; |
| u8 max_device_type; |
| }; |
| /* Struct which keeps track of the line numbers for the sliced vbi service */ |
| struct vpif_service_line { |
| u16 service_id; |
| u16 service_line[2]; |
| }; |
| #endif /* End of __KERNEL__ */ |
| #endif /* VPIF_CAPTURE_H */ |