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- /*
- * Copyright (C) 2021 - 2022 Alibaba Group. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- #ifndef __VIDEO_MEMORY_H_
- #define __VIDEO_MEMORY_H_
- #define IN
- #define OUT
- #define INOUT
- #define OPTIONAL
- /* No special needs. */
- #define ALLOC_FLAG_NONE 0x00000000
- /* Physical contiguous. */
- #define ALLOC_FLAG_CONTIGUOUS 0x00000001
- /* Physical non contiguous. */
- #define ALLOC_FLAG_NON_CONTIGUOUS 0x00000002
- /* Need 32bit address. */
- #define ALLOC_FLAG_4GB_ADDR 0x00000004
- /* CMA priority */
- #define ALLOC_FLAG_CMA 0x00000008
- /* Use VI reserved memory */
- #define ALLOC_FLAG_VI 0x00000010
- /* Alloc rsvmem pool region id should be 0~15 */
- #define SET_ALLOC_FLAG_REGION(flag, region_id) (flag & 0x00ffffff) | (region_id << 24)
- #define GET_ALLOC_FLAG_REGION(flag) (flag >> 24)
- #define MEMORY_IOC_MAGIC 'a'
- #define MEMORY_IOC_ALLOCATE _IOWR(MEMORY_IOC_MAGIC, 1, VidmemParams *)
- #define MEMORY_IOC_FREE _IOWR(MEMORY_IOC_MAGIC, 2, VidmemParams *)
- #define MEMORY_IOC_DMABUF_EXPORT _IOWR(MEMORY_IOC_MAGIC, 3, VidmemParams *)
- #define MEMORY_IOC_DMABUF_IMPORT _IOWR(MEMORY_IOC_MAGIC, 4, VidmemParams *)
- #define MEMORY_IOC_DMABUF_RELEASE _IOWR(MEMORY_IOC_MAGIC, 5, VidmemParams *)
- #define MEMORY_IOC_MAXNR 5
- typedef struct {
- unsigned long bus_address;
- unsigned int size;
- unsigned long translation_offset;
- int fd;
- int flags;
- } VidmemParams;
- #endif /* __VIDEO_MEMORY_H_ */
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