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    AudioScience HPI driver
    Copyright (C) 1997-2010  AudioScience Inc. <support@audioscience.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of version 2 of the GNU General Public License as
    published by the Free Software Foundation;

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


00021 struct hpi_adapter_obj {
      struct hpi_pci pci;     /* PCI info - bus#,dev#,address etc */
      u16 adapter_type; /* ASI6701 etc */
      u16 index;        /* */
      u16 open;         /* =1 when adapter open */
      u16 mixer_open;

      struct hpios_spinlock dsp_lock;

      u16 dsp_crashed;
      u16 has_control_cache;
      void *priv;

00035 struct hpi_control_cache {
00036       u32 init;        /**< indicates whether the
                        structures are initialized */
      u32 control_count;
      u32 cache_size_in_bytes;
00040       struct hpi_control_cache_info
      **p_info;          /**< pointer to allocated memory of
                        lookup pointers. */
00043       struct hpi_control_cache_single
      *p_cache;          /**< pointer to DSP's control cache. */

struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
u16 hpi_add_adapter(struct hpi_adapter_obj *pao);

void hpi_delete_adapter(struct hpi_adapter_obj *pao);

short hpi_check_control_cache(struct hpi_control_cache *pC,
      struct hpi_message *phm, struct hpi_response *phr);
struct hpi_control_cache *hpi_alloc_control_cache(const u32
      number_of_controls, const u32 size_in_bytes,
      struct hpi_control_cache_info
void hpi_free_control_cache(struct hpi_control_cache *p_cache);

void hpi_sync_control_cache(struct hpi_control_cache *pC,
      struct hpi_message *phm, struct hpi_response *phr);
u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache,
      struct hpi_message *phm, void **p, unsigned int *pN);

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