| /* |
| * |
| * (C) COPYRIGHT 2012 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU licence. |
| * |
| * A copy of the licence is included with the program, and can also be obtained |
| * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| |
| |
| #ifndef _DMA_BUF_LOCK_H |
| #define _DMA_BUF_LOCK_H |
| |
| typedef enum dma_buf_lock_exclusive |
| { |
| DMA_BUF_LOCK_NONEXCLUSIVE = 0, |
| DMA_BUF_LOCK_EXCLUSIVE = -1 |
| } dma_buf_lock_exclusive; |
| |
| typedef struct dma_buf_lock_k_request |
| { |
| int count; |
| int *list_of_dma_buf_fds; |
| int timeout; |
| dma_buf_lock_exclusive exclusive; |
| } dma_buf_lock_k_request; |
| |
| #define DMA_BUF_LOCK_IOC_MAGIC '~' |
| |
| #define DMA_BUF_LOCK_FUNC_LOCK_ASYNC _IOW(DMA_BUF_LOCK_IOC_MAGIC, 11, dma_buf_lock_k_request) |
| |
| #define DMA_BUF_LOCK_IOC_MINNR 11 |
| #define DMA_BUF_LOCK_IOC_MAXNR 11 |
| |
| #endif /* _DMA_BUF_LOCK_H */ |
