target/linux/ifxmips/files/drivers/crypto/ifxmips/ifxmips_deu_dma.h

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  15  *
  16  *   Copyright (C) 2010 Ralph Hempel <ralph.hempel@lantiq.com>
  17  *   Copyright (C) 2009 Mohammad Firdaus
  18  */
  19
  20 /*!
  21   \addtogroup    IFX_DEU IFX_DEU_DRIVERS
  22   \ingroup       API
  23   \brief         ifx deu driver module
  24 */
  25
  26 /*!
  27   \file         ifxmips_deu_dma.h
  28   \ingroup      IFX_DEU
  29   \brief        DMA deu driver header file
  30 */
  31
  32 #ifndef IFXMIPS_DEU_DMA_H
  33 #define IFXMIPS_DEU_DMA_H
  34
  35 #include <linux/init.h>
  36 #include <linux/module.h>
  37 #include <linux/mm.h>
  38 #include <linux/crypto.h>
  39 #include <asm/scatterlist.h>
  40 #include <asm/byteorder.h>
  41 #include <linux/skbuff.h>
  42 #include <linux/netdevice.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         wait_queue_t wait;
  58 } _ifx_deu_device;
  59
  60 extern _ifx_deu_device ifx_deu[1];
  61
  62 extern int deu_dma_intr_handler (struct dma_device_info *, int);
  63 extern u8 *deu_dma_buffer_alloc (int, int *, void **);
  64 extern int deu_dma_buffer_free (u8 *, void *);
  65 extern void deu_dma_inactivate_poll(struct dma_device_info* dma_dev);
  66 extern void deu_dma_activate_poll (struct dma_device_info* dma_dev);
  67 extern struct dma_device_info* deu_dma_reserve(struct dma_device_info** dma_device);
  68 extern int deu_dma_release(struct dma_device_info** dma_device);
  69
  70 #endif  /* IFMIPS_DEU_DMA_H */