1 /* Copyright (c) 2013, 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 <string.h> 36 #include <linux/msm_ion.h> 37 #include <sys/mman.h> 38 #include <unistd.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include "mm_jpeg_dbg.h" 42 43 typedef struct { 44 struct ion_fd_data ion_info_fd; 45 struct ion_allocation_data alloc; 46 int p_pmem_fd; 47 long size; 48 int ion_fd; 49 uint8_t *addr; 50 } buffer_t; 51 52 /** buffer_allocate: 53 * 54 * Arguments: 55 * @p_buffer: ION buffer 56 * 57 * Return: 58 * buffer address 59 * 60 * Description: 61 * allocates ION buffer 62 * 63 **/ 64 void* buffer_allocate(buffer_t *p_buffer, int cached); 65 66 /** buffer_deallocate: 67 * 68 * Arguments: 69 * @p_buffer: ION buffer 70 * 71 * Return: 72 * error val 73 * 74 * Description: 75 * deallocates ION buffer 76 * 77 **/ 78 int buffer_deallocate(buffer_t *p_buffer); 79 80 /** buffer_invalidate: 81 * 82 * Arguments: 83 * @p_buffer: ION buffer 84 * 85 * Return: 86 * error val 87 * 88 * Description: 89 * Invalidates the cached buffer 90 * 91 **/ 92 int buffer_invalidate(buffer_t *p_buffer); 93 94 #endif 95 96