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70 lines
2.5 KiB
70 lines
2.5 KiB
/* |
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Copyright (c) 2012, Broadcom Europe Ltd |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the copyright holder nor the |
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names of its contributors may be used to endorse or promote products |
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derived from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef _VC_CMA_H_ |
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#define _VC_CMA_H_ |
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#include "interface/vcos/vcos.h" |
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#include "interface/vchiq_arm/vchiq.h" |
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#ifdef __linux__ |
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#include <linux/ioctl.h> |
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#define VC_CMA_IOC_MAGIC 0xc5 |
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#define VC_CMA_IOC_RESERVE _IO(VC_CMA_IOC_MAGIC, 0) |
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#endif |
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#define VC_CMA_FOURCC VCHIQ_MAKE_FOURCC('C','M','A',' ') |
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#define VC_CMA_VERSION 2 |
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#define VC_CMA_CHUNK_ORDER 6 /* 256K */ |
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#define VC_CMA_CHUNK_SIZE (4096 << VC_CMA_CHUNK_ORDER) |
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#define VC_CMA_MAX_PARAMS_PER_MSG ((VCHIQ_MAX_MSG_SIZE - sizeof(unsigned short)) / sizeof(unsigned short)) |
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enum |
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{ |
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VC_CMA_MSG_QUIT, |
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VC_CMA_MSG_OPEN, |
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VC_CMA_MSG_TICK, |
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VC_CMA_MSG_ALLOC, /* chunk count */ |
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VC_CMA_MSG_FREE, /* chunk, chunk, ... */ |
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VC_CMA_MSG_ALLOCATED, /* chunk, chunk, ... */ |
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VC_CMA_MSG_REQUEST_ALLOC, /* chunk count */ |
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VC_CMA_MSG_REQUEST_FREE, /* chunk count */ |
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VC_CMA_MSG_RESERVE, /* bytes lo, bytes hi */ |
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VC_CMA_MSG_MAX |
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}; |
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typedef struct vc_cma_msg_struct |
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{ |
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unsigned short type; |
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unsigned short params[VC_CMA_MAX_PARAMS_PER_MSG]; |
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} VC_CMA_MSG_T; |
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#endif
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