package/kernel/lantiq/ltq-deu/src/ifxmips_deu_dma.h

   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 <asm/scatterlist.h>
  39 #include <asm/byteorder.h>
  40 #include <linux/skbuff.h>
  41 #include <linux/netdevice.h>
  42
  43 // must match the size of memory block allocated for g_dma_block and g_dma_block2
  44 #define DEU_MAX_PACKET_SIZE    (PAGE_SIZE >> 1)
  45
  46 typedef struct ifx_deu_device {
  47         struct dma_device_info *dma_device;
  48         u8 *dst;
  49         u8 *src;
  50         int len;
  51         int dst_count;
  52         int src_count;
  53         int recv_count;
  54         int packet_size;
  55         int packet_num;
  56         wait_queue_t wait;
  57 } _ifx_deu_device;
  58
  59 extern _ifx_deu_device ifx_deu[1];
  60
  61 extern int deu_dma_intr_handler (struct dma_device_info *, int);
  62 extern u8 *deu_dma_buffer_alloc (int, int *, void **);
  63 extern int deu_dma_buffer_free (u8 *, void *);
  64 extern void deu_dma_inactivate_poll(struct dma_device_info* dma_dev);
  65 extern void deu_dma_activate_poll (struct dma_device_info* dma_dev);
  66 extern struct dma_device_info* deu_dma_reserve(struct dma_device_info** dma_device);
  67 extern int deu_dma_release(struct dma_device_info** dma_device);
  68
  69 #endif  /* IFMIPS_DEU_DMA_H */