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/drivers/isdn/hardware/eicon/diva_dma.h

http://github.com/mirrors/linux
C++ Header | 48 lines | 19 code | 1 blank | 28 comment | 0 complexity | 71b9283778ce102cec2b1d1322b77088 MD5 | raw file
 1
 2/*
 3 *
 4 Copyright (c) Eicon Networks, 2002.
 5 *
 6 This source file is supplied for the use with
 7 Eicon Networks range of DIVA Server Adapters.
 8 *
 9 Eicon File Revision :    2.1
10 *
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15 *
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
18 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 See the GNU General Public License for more details.
20 *
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 */
26#ifndef __DIVA_DMA_MAPPING_IFC_H__
27#define __DIVA_DMA_MAPPING_IFC_H__
28typedef struct _diva_dma_map_entry  diva_dma_map_entry_t;
29struct _diva_dma_map_entry *diva_alloc_dma_map(void *os_context, int nentries);
30void diva_init_dma_map_entry(struct _diva_dma_map_entry *pmap,
31			     int nr, void *virt, dword phys,
32			     void *addr_handle);
33int diva_alloc_dma_map_entry(struct _diva_dma_map_entry *pmap);
34void diva_free_dma_map_entry(struct _diva_dma_map_entry *pmap, int entry);
35void diva_get_dma_map_entry(struct _diva_dma_map_entry *pmap, int nr,
36			    void **pvirt, dword *pphys);
37void diva_free_dma_mapping(struct _diva_dma_map_entry *pmap);
38/*
39  Functionality to be implemented by OS wrapper
40  and running in process context
41*/
42void diva_init_dma_map(void *hdev,
43		       struct _diva_dma_map_entry **ppmap,
44		       int nentries);
45void diva_free_dma_map(void *hdev,
46		       struct _diva_dma_map_entry *pmap);
47void *diva_get_entry_handle(struct _diva_dma_map_entry *pmap, int nr);
48#endif