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https://github.com/thead-yocto-mirror/vpu-vc8000d-kernel
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105 lines
4.1 KiB
C
105 lines
4.1 KiB
C
/****************************************************************************
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014 - 2021 VERISILICON
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************
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*
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* The GPL License (GPL)
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*
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* Copyright (C) 2014 - 2021 VERISILICON
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*****************************************************************************
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*
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* Note: This software is released under dual MIT and GPL licenses. A
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* recipient may use this file under the terms of either the MIT license or
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* GPL License. If you wish to use only one license not the other, you can
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* indicate your decision by deleting one of the above license notices in your
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* version of this file.
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*
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*****************************************************************************/
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#ifndef _MEMALLOC_FREERTOS_H_
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#define _MEMALLOC_FREERTOS_H_
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#include "user_freertos.h"
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#include "dev_common_freertos.h"
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#undef PDEBUG /* undef it, just in case */
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#ifdef MEMALLOC_DEBUG
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/* This one for user space */
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#define PDEBUG(fmt, args...) fprintf(stderr, fmt, ## args)
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#else
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#define PDEBUG(fmt, args...) /* not debugging: nothing */
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#endif
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/*
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* Ioctl definitions
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*/
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/* Use 'k' as magic number */
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#define MEMALLOC_IOC_MAGIC 'k'
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/*
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* S means "Set" through a ptr,
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* T means "Tell" directly with the argument value
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* G means "Get": reply by setting through a pointer
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* Q means "Query": response is on the return value
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* X means "eXchange": G and S atomically
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* H means "sHift": T and Q atomically
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*/
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#define MEMALLOC_IOCXGETBUFFER _IOWR(MEMALLOC_IOC_MAGIC, 1, MemallocParams*)
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#define MEMALLOC_IOCSFREEBUFFER _IOW(MEMALLOC_IOC_MAGIC, 2, unsigned long*)
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#define MEMALLOC_IOCGMEMBASE _IOR(MEMALLOC_IOC_MAGIC, 3, unsigned long *)
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/* ... more to come */
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#define MEMALLOC_IOCHARDRESET _IO(MEMALLOC_IOC_MAGIC, 15) /* debugging tool */
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#define MEMALLOC_IOC_MAXNR 15
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typedef struct {
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unsigned long long bus_address;
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unsigned int size;
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unsigned long translation_offset;
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unsigned int mem_type;
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} MemallocParams;
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//Mem device
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int __init memalloc_init(void);
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int memalloc_open(int *inode, int filp);
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int memalloc_release(int *inode, int filp);
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long memalloc_ioctl(int filp, unsigned int cmd, void *arg);
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void * DirectMemoryMap(unsigned long long busaddr, unsigned long map_size);
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addr_t GetBusAddrForIODevide(unsigned int size);
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#endif /* _MEMALLOC_FREERTOS_H_ */
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