/* * * (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 */