sound/pci/asihpi/hpicmn.h

   1 /**
   2
   3     AudioScience HPI driver
   4     Copyright (C) 1997-2010  AudioScience Inc. <support@audioscience.com>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of version 2 of the GNU General Public License as
   8     published by the Free Software Foundation;
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19 */
  20
  21 struct hpi_adapter_obj {
  22         struct hpi_pci pci;     /* PCI info - bus#,dev#,address etc */
  23         u16 adapter_type;       /* ASI6701 etc */
  24         u16 index;              /* */
  25         u16 open;               /* =1 when adapter open */
  26         u16 mixer_open;
  27
  28         struct hpios_spinlock dsp_lock;
  29
  30         u16 dsp_crashed;
  31         u16 has_control_cache;
  32         void *priv;
  33 };
  34
  35 struct hpi_control_cache {
  36         u32 init;            /**< indicates whether the
  37                                 structures are initialized */
  38         u32 control_count;
  39         u32 cache_size_in_bytes;
  40         struct hpi_control_cache_info
  41         **p_info;                /**< pointer to allocated memory of
  42                                 lookup pointers. */
  43         struct hpi_control_cache_single
  44         *p_cache;                /**< pointer to DSP's control cache. */
  45 };
  46
  47 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
  48 u16 hpi_add_adapter(struct hpi_adapter_obj *pao);
  49
  50 void hpi_delete_adapter(struct hpi_adapter_obj *pao);
  51
  52 short hpi_check_control_cache(struct hpi_control_cache *pC,
  53         struct hpi_message *phm, struct hpi_response *phr);
  54 struct hpi_control_cache *hpi_alloc_control_cache(const u32
  55         number_of_controls, const u32 size_in_bytes,
  56         struct hpi_control_cache_info
  57         *pDSP_control_buffer);
  58 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
  59
  60 void hpi_sync_control_cache(struct hpi_control_cache *pC,
  61         struct hpi_message *phm, struct hpi_response *phr);
  62 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
  63 short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache,
  64         struct hpi_message *phm, void **p, unsigned int *pN);