| Mingcheng Zhu | 9812bd3 | 2011-07-22 22:57:11 -0700 | [diff] [blame^] | 1 | /* Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | * helper functions for physically contiguous PMEM capture buffers |
| 13 | */ |
| 14 | |
| 15 | #ifndef _VIDEOBUF2_PMEM_CONTIG_H |
| 16 | #define _VIDEOBUF2_PMEM_CONTIG_H |
| 17 | |
| 18 | #include <media/videobuf2-core.h> |
| 19 | |
| 20 | struct videobuf2_mapping { |
| 21 | unsigned int count; |
| 22 | }; |
| 23 | |
| 24 | struct videobuf2_contig_pmem { |
| 25 | u32 magic; |
| 26 | void *vaddr; |
| 27 | int phyaddr; |
| 28 | unsigned long size; |
| 29 | int is_userptr; |
| 30 | uint32_t y_off; |
| 31 | uint32_t cbcr_off; |
| 32 | int buffer_type; |
| 33 | struct file *file; |
| 34 | uint32_t addr_offset; |
| 35 | int dirty; |
| 36 | unsigned int count; |
| 37 | void *alloc_ctx; |
| 38 | }; |
| 39 | void videobuf2_queue_pmem_contig_init(struct vb2_queue *q, |
| 40 | enum v4l2_buf_type type, |
| 41 | const struct vb2_ops *ops, |
| 42 | unsigned int size, |
| 43 | void *priv); |
| 44 | int videobuf2_pmem_contig_mmap_get(struct videobuf2_contig_pmem *mem, |
| 45 | uint32_t yoffset, |
| 46 | uint32_t cbcroffset, int path); |
| 47 | int videobuf2_pmem_contig_user_get(struct videobuf2_contig_pmem *mem, |
| 48 | uint32_t yoffset, uint32_t cbcroffset, |
| 49 | uint32_t addr_offset, int path); |
| 50 | void videobuf2_pmem_contig_user_put(struct videobuf2_contig_pmem *mem); |
| 51 | int videobuf2_to_pmem_contig(struct vb2_buffer *buf, unsigned int plane_no); |
| 52 | |
| 53 | #endif /* _VIDEOBUF2_PMEM_CONTIG_H */ |