release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/asihpi/hpi6205.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 Host Interface module for an ASI6205 based
  20 bus mastering PCI adapter.
  21
  22 Copyright AudioScience, Inc., 2003
  23 ******************************************************************************/
  24
  25 #ifndef _HPI6205_H_
  26 #define _HPI6205_H_
  27
  28 /* transitional conditional compile shared between host and DSP */
  29 /* #define HPI6205_NO_HSR_POLL */
  30
  31 #include "hpi_internal.h"
  32
  33 /***********************************************************
  34         Defines used for basic messaging
  35 ************************************************************/
  36 #define H620_HIF_RESET          0
  37 #define H620_HIF_IDLE           1
  38 #define H620_HIF_GET_RESP       2
  39 #define H620_HIF_DATA_DONE      3
  40 #define H620_HIF_DATA_MASK      0x10
  41 #define H620_HIF_SEND_DATA      0x14
  42 #define H620_HIF_GET_DATA       0x15
  43 #define H620_HIF_UNKNOWN                0x0000ffff
  44
  45 /***********************************************************
  46         Types used for mixer control caching
  47 ************************************************************/
  48
  49 #define H620_MAX_ISTREAMS 32
  50 #define H620_MAX_OSTREAMS 32
  51 #define HPI_NMIXER_CONTROLS 2048
  52
  53 /*********************************************************************
  54 This is used for dynamic control cache allocation
  55 **********************************************************************/
  56 struct controlcache_6205 {
  57         u32 number_of_controls;
  58         u32 physical_address32;
  59         u32 size_in_bytes;
  60 };
  61
  62 /*********************************************************************
  63 This is used for dynamic allocation of async event array
  64 **********************************************************************/
  65 struct async_event_buffer_6205 {
  66         u32 physical_address32;
  67         u32 spare;
  68         struct hpi_fifo_buffer b;
  69 };
  70
  71 /***********************************************************
  72 The Host located memory buffer that the 6205 will bus master
  73 in and out of.
  74 ************************************************************/
  75 #define HPI6205_SIZEOF_DATA (16*1024)
  76 struct bus_master_interface {
  77         u32 host_cmd;
  78         u32 dsp_ack;
  79         u32 transfer_size_in_bytes;
  80         union {
  81                 struct hpi_message message_buffer;
  82                 struct hpi_response response_buffer;
  83                 u8 b_data[HPI6205_SIZEOF_DATA];
  84         } u;
  85         struct controlcache_6205 control_cache;
  86         struct async_event_buffer_6205 async_buffer;
  87         struct hpi_hostbuffer_status
  88          instream_host_buffer_status[H620_MAX_ISTREAMS];
  89         struct hpi_hostbuffer_status
  90          outstream_host_buffer_status[H620_MAX_OSTREAMS];
  91 };
  92
  93 #endif