Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 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> |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 26 | #include <media/v4l2-common.h> |
| 27 | #include <media/v4l2-device.h> |
Lad, Prabhakar | 60aa38d | 2012-06-28 09:28:05 -0300 | [diff] [blame] | 28 | #include <media/videobuf2-dma-contig.h> |
Manjunath Hadli | e13c692 | 2011-11-12 20:36:02 +0530 | [diff] [blame] | 29 | #include <media/davinci/vpif_types.h> |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 30 | |
| 31 | #include "vpif.h" |
| 32 | |
| 33 | /* Macros */ |
Mauro Carvalho Chehab | 64dc3c1 | 2011-06-25 11:28:37 -0300 | [diff] [blame] | 34 | #define VPIF_CAPTURE_VERSION "0.0.2" |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 35 | |
| 36 | #define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \ |
| 37 | (V4L2_FIELD_NONE == field)) || \ |
| 38 | (((V4L2_FIELD_INTERLACED == field) || \ |
| 39 | (V4L2_FIELD_SEQ_TB == field)) || \ |
| 40 | (V4L2_FIELD_SEQ_BT == field))) |
| 41 | |
| 42 | #define VPIF_CAPTURE_MAX_DEVICES 2 |
| 43 | #define VPIF_VIDEO_INDEX 0 |
| 44 | #define VPIF_NUMBER_OF_OBJECTS 1 |
| 45 | |
| 46 | /* Enumerated data type to give id to each device per channel */ |
| 47 | enum vpif_channel_id { |
| 48 | VPIF_CHANNEL0_VIDEO = 0, |
| 49 | VPIF_CHANNEL1_VIDEO, |
| 50 | }; |
| 51 | |
| 52 | struct video_obj { |
| 53 | enum v4l2_field buf_field; |
| 54 | /* Currently selected or default standard */ |
| 55 | v4l2_std_id stdid; |
Hans Verkuil | 0598c17 | 2012-09-18 07:18:47 -0300 | [diff] [blame] | 56 | struct v4l2_dv_timings dv_timings; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 57 | }; |
| 58 | |
Lad, Prabhakar | 60aa38d | 2012-06-28 09:28:05 -0300 | [diff] [blame] | 59 | struct vpif_cap_buffer { |
| 60 | struct vb2_buffer vb; |
| 61 | struct list_head list; |
| 62 | }; |
| 63 | |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 64 | struct common_obj { |
| 65 | /* Pointer pointing to current v4l2_buffer */ |
Lad, Prabhakar | 60aa38d | 2012-06-28 09:28:05 -0300 | [diff] [blame] | 66 | struct vpif_cap_buffer *cur_frm; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 67 | /* Pointer pointing to current v4l2_buffer */ |
Lad, Prabhakar | 60aa38d | 2012-06-28 09:28:05 -0300 | [diff] [blame] | 68 | struct vpif_cap_buffer *next_frm; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 69 | /* |
| 70 | * This field keeps track of type of buffer exchange mechanism |
| 71 | * user has selected |
| 72 | */ |
| 73 | enum v4l2_memory memory; |
| 74 | /* Used to store pixel format */ |
| 75 | struct v4l2_format fmt; |
| 76 | /* Buffer queue used in video-buf */ |
Lad, Prabhakar | 60aa38d | 2012-06-28 09:28:05 -0300 | [diff] [blame] | 77 | struct vb2_queue buffer_queue; |
| 78 | /* allocator-specific contexts for each plane */ |
| 79 | struct vb2_alloc_ctx *alloc_ctx; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 80 | /* Queue of filled frames */ |
| 81 | struct list_head dma_queue; |
| 82 | /* Used in video-buf */ |
| 83 | spinlock_t irqlock; |
| 84 | /* lock used to access this structure */ |
| 85 | struct mutex lock; |
| 86 | /* number of users performing IO */ |
| 87 | u32 io_usrs; |
| 88 | /* Indicates whether streaming started */ |
| 89 | u8 started; |
| 90 | /* Function pointer to set the addresses */ |
| 91 | void (*set_addr) (unsigned long, unsigned long, unsigned long, |
| 92 | unsigned long); |
| 93 | /* offset where Y top starts from the starting of the buffer */ |
| 94 | u32 ytop_off; |
| 95 | /* offset where Y bottom starts from the starting of the buffer */ |
| 96 | u32 ybtm_off; |
| 97 | /* offset where C top starts from the starting of the buffer */ |
| 98 | u32 ctop_off; |
| 99 | /* offset where C bottom starts from the starting of the buffer */ |
| 100 | u32 cbtm_off; |
| 101 | /* Indicates width of the image data */ |
| 102 | u32 width; |
| 103 | /* Indicates height of the image data */ |
| 104 | u32 height; |
| 105 | }; |
| 106 | |
| 107 | struct channel_obj { |
| 108 | /* Identifies video device for this channel */ |
| 109 | struct video_device *video_dev; |
| 110 | /* Used to keep track of state of the priority */ |
| 111 | struct v4l2_prio_state prio; |
| 112 | /* number of open instances of the channel */ |
| 113 | int usrs; |
| 114 | /* Indicates id of the field which is being displayed */ |
| 115 | u32 field_id; |
| 116 | /* flag to indicate whether decoder is initialized */ |
| 117 | u8 initialized; |
| 118 | /* Identifies channel */ |
| 119 | enum vpif_channel_id channel_id; |
Hans Verkuil | 6f47c6c | 2012-09-20 09:06:22 -0300 | [diff] [blame] | 120 | /* Current input */ |
| 121 | u32 input_idx; |
Hans Verkuil | 178cce1 | 2012-09-20 09:06:30 -0300 | [diff] [blame] | 122 | /* subdev corresponding to the current input, may be NULL */ |
| 123 | struct v4l2_subdev *sd; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 124 | /* vpif configuration params */ |
| 125 | struct vpif_params vpifparams; |
| 126 | /* common object array */ |
| 127 | struct common_obj common[VPIF_NUMBER_OF_OBJECTS]; |
| 128 | /* video object */ |
| 129 | struct video_obj video; |
| 130 | }; |
| 131 | |
| 132 | /* File handle structure */ |
| 133 | struct vpif_fh { |
| 134 | /* pointer to channel object for opened device */ |
| 135 | struct channel_obj *channel; |
| 136 | /* Indicates whether this file handle is doing IO */ |
| 137 | u8 io_allowed[VPIF_NUMBER_OF_OBJECTS]; |
| 138 | /* Used to keep track priority of this instance */ |
| 139 | enum v4l2_priority prio; |
| 140 | /* Used to indicate channel is initialize or not */ |
| 141 | u8 initialized; |
| 142 | }; |
| 143 | |
| 144 | struct vpif_device { |
| 145 | struct v4l2_device v4l2_dev; |
| 146 | struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS]; |
| 147 | struct v4l2_subdev **sd; |
| 148 | }; |
| 149 | |
| 150 | struct vpif_config_params { |
| 151 | u8 min_numbuffers; |
| 152 | u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS]; |
| 153 | s8 device_type; |
| 154 | u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; |
| 155 | u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS]; |
| 156 | u8 default_device[VPIF_CAPTURE_NUM_CHANNELS]; |
Manjunath Hadli | 764af39 | 2012-04-13 04:49:34 -0300 | [diff] [blame] | 157 | u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS]; |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 158 | u8 max_device_type; |
| 159 | }; |
Hans Verkuil | 822f0fd | 2012-09-20 09:06:20 -0300 | [diff] [blame] | 160 | |
Muralidharan Karicheri | 6ffefff | 2009-09-16 14:31:10 -0300 | [diff] [blame] | 161 | #endif /* End of __KERNEL__ */ |
| 162 | #endif /* VPIF_CAPTURE_H */ |