1 /* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer in the documentation and/or other materials provided 11 * with the distribution. 12 * * Neither the name of The Linux Foundation nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef __MM_JPEG_IONBUF_H__ 31 #define __MM_JPEG_IONBUF_H__ 32 33 34 #include <stdio.h> 35 #include <linux/msm_ion.h> 36 #include <sys/mman.h> 37 #include <unistd.h> 38 #include <errno.h> 39 #include <fcntl.h> 40 #include "mm_jpeg_dbg.h" 41 42 typedef struct { 43 struct ion_fd_data ion_info_fd; 44 struct ion_allocation_data alloc; 45 int p_pmem_fd; 46 size_t size; 47 int ion_fd; 48 uint8_t *addr; 49 } buffer_t; 50 51 /** buffer_allocate: 52 * 53 * Arguments: 54 * @p_buffer: ION buffer 55 * 56 * Return: 57 * buffer address 58 * 59 * Description: 60 * allocates ION buffer 61 * 62 **/ 63 void* buffer_allocate(buffer_t *p_buffer, int cached); 64 65 /** buffer_deallocate: 66 * 67 * Arguments: 68 * @p_buffer: ION buffer 69 * 70 * Return: 71 * error val 72 * 73 * Description: 74 * deallocates ION buffer 75 * 76 **/ 77 int buffer_deallocate(buffer_t *p_buffer); 78 79 /** buffer_invalidate: 80 * 81 * Arguments: 82 * @p_buffer: ION buffer 83 * 84 * Return: 85 * error val 86 * 87 * Description: 88 * Invalidates the cached buffer 89 * 90 **/ 91 int buffer_invalidate(buffer_t *p_buffer); 92 93 #endif 94 95