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hpicmn.h

/**

    AudioScience HPI driver
    Copyright (C) 1997-2003  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
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    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 wAdapterType; /* ASI6701 etc */
      u16 wIndex;       /* */
      u16 wOpen;        /* =1 when adapter open */
      u16 wMixerOpen;

      struct hpios_spinlock dspLock;

      u16 wDspCrashed;
      u16 wHasControlCache;
      void *priv;
};

struct hpi_control_cache {
      u32 dwInit;        /**< indicates whether the
                        structures are initialized */
      u32 dwControlCount;
      u32 dwCacheSizeInBytes;
      struct hpi_control_cache_info
      **pInfo;          /**< pointer to allocated memory of
                        lookup pointers. */
      struct hpi_control_cache_single
      *pCache;          /**< pointer to DSP's control cache. */
};

struct hpi_adapter_obj *HpiFindAdapter(
      u16 wAdapterIndex
);
u16 HpiAddAdapter(
      struct hpi_adapter_obj *pao
);

void HpiDeleteAdapter(
      struct hpi_adapter_obj *pao
);

short HpiCheckControlCache(
      struct hpi_control_cache *pC,
      struct hpi_message *phm,
      struct hpi_response *phr
);
struct hpi_control_cache *HpiAllocControlCache(
      const u32 dwNumberOfControls,
      const u32 dwSizeInBytes,
      struct hpi_control_cache_info
      *pDSPControlBuffer
);
void HpiFreeControlCache(
      struct hpi_control_cache *pCache
);

void HpiSyncControlCache(
      struct hpi_control_cache *pC,
      struct hpi_message *phm,
      struct hpi_response *phr
);
u16 HpiValidateResponse(
      struct hpi_message *phm,
      struct hpi_response *phr
);
short HpiCheckBufferMapping(
      struct hpi_control_cache *pCache,
      struct hpi_message *phm,
      void **p,
      unsigned int *pN
);

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