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1 office 1 /******************************************************************************
2 **
3 ** FILE NAME : ifxmips_deu_dma.h
4 ** DESCRIPTION : Data Encryption Unit Driver
5 ** COPYRIGHT : Copyright (c) 2009
6 ** Infineon Technologies AG
7 ** Am Campeon 1-12, 85579 Neubiberg, Germany
8 **
9 ** This program is free software; you can redistribute it and/or modify
10 ** it under the terms of the GNU General Public License as published by
11 ** the Free Software Foundation; either version 2 of the License, or
12 ** (at your option) any later version.
13 **
14 ** HISTORY
15 ** $Date $Author $Comment
16 ** 08,Sept 2009 Mohammad Firdaus Initial UEIP release
17 *******************************************************************************/
18  
19 /*!
20 \addtogroup IFX_DEU IFX_DEU_DRIVERS
21 \ingroup API
22 \brief ifx deu driver module
23 */
24  
25 /*!
26 \file ifxmips_deu_dma.h
27 \ingroup IFX_DEU
28 \brief DMA deu driver header file
29 */
30  
31 #ifndef IFXMIPS_DEU_DMA_H
32 #define IFXMIPS_DEU_DMA_H
33  
34 #include <linux/init.h>
35 #include <linux/module.h>
36 #include <linux/mm.h>
37 #include <linux/crypto.h>
38 #include <linux/scatterlist.h>
39 #include <asm/byteorder.h>
40 #include <linux/skbuff.h>
41 #include <linux/netdevice.h>
42 #include <linux/version.h>
43  
44 // must match the size of memory block allocated for g_dma_block and g_dma_block2
45 #define DEU_MAX_PACKET_SIZE (PAGE_SIZE >> 1)
46  
47 typedef struct ifx_deu_device {
48 struct dma_device_info *dma_device;
49 u8 *dst;
50 u8 *src;
51 int len;
52 int dst_count;
53 int src_count;
54 int recv_count;
55 int packet_size;
56 int packet_num;
57 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,13,0))
58 wait_queue_entry_t wait;
59 #else
60 wait_queue_t wait;
61 #endif
62 } _ifx_deu_device;
63  
64 extern _ifx_deu_device ifx_deu[1];
65  
66 extern int deu_dma_intr_handler (struct dma_device_info *, int);
67 extern u8 *deu_dma_buffer_alloc (int, int *, void **);
68 extern int deu_dma_buffer_free (u8 *, void *);
69 extern void deu_dma_inactivate_poll(struct dma_device_info* dma_dev);
70 extern void deu_dma_activate_poll (struct dma_device_info* dma_dev);
71 extern struct dma_device_info* deu_dma_reserve(struct dma_device_info** dma_device);
72 extern int deu_dma_release(struct dma_device_info** dma_device);
73  
74 #endif /* IFMIPS_DEU_DMA_H */