1 /*
2 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
3 *
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the
15 * distribution.
16 *
17 * Neither the name of Texas Instruments Incorporated nor the names of
18 * its contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
35 #ifndef CMEM_BUF_H
36 #define CMEM_BUF_H
38 class BufObj {
39 public:
40 BufObj(uint32_t w, uint32_t h, uint32_t bpp, uint32_t fourcc, uint32_t align, uint32_t num_bufs);
41 ~BufObj();
43 //If applications wants to do cache operations on buffer
44 int dma_buf_do_cache_operation(int dma_buf_fd, uint32_t cache_operation);
46 uint32_t m_fourcc;
47 uint32_t m_width;
48 uint32_t m_height;
49 uint32_t m_stride;
51 int *m_fd;
52 uint32_t *m_fb_id;
53 void **m_buf;
55 private:
56 int alloc_cmem_buffer(unsigned int size, unsigned int align, void **cmem_buf);
57 void free_cmem_buffer(void *cmem_buffer);
58 uint32_t m_num_bufs;
59 };
61 #endif //CMEM_BUF_H