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