104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
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/*
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-----------------------------------------------------------------------------
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Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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* Neither the name of The Linux Foundation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
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*/
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#ifndef __V4L2_H__
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#define __V4L2_H__
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#include <linux/videodev2.h>
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#include <linux/ion.h>
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struct mem_buffer
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{
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int index;
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int size;
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void *buf;
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};
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struct v4l2_overlay_userptr_buffer {
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unsigned int base[3];//base address of plane or frame
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size_t offset[3];//offset of plane or frame in multi buffer use case
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};
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struct v4l2_overlay_userptr_buffer *userptr;
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/* ION: start */
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#define MEM_NAME_STR_LEN (25)
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#define ION_NAME_STR "/dev/ion"
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#define ION_NAME_STR_LEN sizeof(ION_NAME_STR)
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#define ION_NUM_DEFAULT 0
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#define MAX_PLANE 3
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struct memDev {
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int fd;
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int mem_fd;
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char mem_name[MEM_NAME_STR_LEN];
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int mem_page_size;
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int mem_size;
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unsigned char *mem_buf;
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};
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struct memDev * MEM[MAX_PLANE];
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struct memDev * ION;
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struct memDev ion[MAX_PLANE];
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struct ion_handle_data handle_data[MAX_PLANE];
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// MEM functions
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int chooseMEMDev(void);
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int openMEMDev(void);
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int allocMEM(unsigned int, unsigned int);
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void free_buffer(unsigned int);
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void close_ion_device(void);
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/* ION: end */
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int v4l2_set_src (int fd,
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int width, int height,
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int crop_x, int crop_y, int crop_w, int crop_h,
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unsigned int pixelformat);
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int v4l2_set_dst (int fd,
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int dst_x, int dst_y, int dst_w, int dst_h,
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void *addr);
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int v4l2_set_buffer (int fd,
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enum v4l2_memory memory,
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int num_buf,
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struct mem_buffer **mem_buf);
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int v4l2_clear_buffer (int fd,
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enum v4l2_memory memory,
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int num_buf,
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struct mem_buffer *mem_buf);
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int v4l2_set_rotation (int fd, int rotation);
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int v4l2_set_flip (int fd, int hflip, int vflip);
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int v4l2_stream_on (int fd);
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int v4l2_stream_off (int fd);
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int v4l2_dequeue (int fd, enum v4l2_memory memory, int *index);
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int v4l2_queue (int fd, int index, enum v4l2_memory memory, __u32 bytes);
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#endif //__V4L2_H__
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