sound/pci/asihpi/hpi6205.h

   1 /*****************************************************************************
   2
   3     AudioScience HPI driver
   4     Copyright (C) 1997-2011  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 #include "hpi_internal.h"
  29
  30 /***********************************************************
  31         Defines used for basic messaging
  32 ************************************************************/
  33 #define H620_HIF_RESET          0
  34 #define H620_HIF_IDLE           1
  35 #define H620_HIF_GET_RESP       2
  36 #define H620_HIF_DATA_DONE      3
  37 #define H620_HIF_DATA_MASK      0x10
  38 #define H620_HIF_SEND_DATA      0x14
  39 #define H620_HIF_GET_DATA       0x15
  40 #define H620_HIF_UNKNOWN                0x0000ffff
  41
  42 /***********************************************************
  43         Types used for mixer control caching
  44 ************************************************************/
  45
  46 #define H620_MAX_ISTREAMS 32
  47 #define H620_MAX_OSTREAMS 32
  48 #define HPI_NMIXER_CONTROLS 2048
  49
  50 /*********************************************************************
  51 This is used for dynamic control cache allocation
  52 **********************************************************************/
  53 struct controlcache_6205 {
  54         u32 number_of_controls;
  55         u32 physical_address32;
  56         u32 size_in_bytes;
  57 };
  58
  59 /*********************************************************************
  60 This is used for dynamic allocation of async event array
  61 **********************************************************************/
  62 struct async_event_buffer_6205 {
  63         u32 physical_address32;
  64         u32 spare;
  65         struct hpi_fifo_buffer b;
  66 };
  67
  68 /***********************************************************
  69 The Host located memory buffer that the 6205 will bus master
  70 in and out of.
  71 ************************************************************/
  72 #define HPI6205_SIZEOF_DATA (16*1024)
  73
  74 struct message_buffer_6205 {
  75         struct hpi_message message;
  76         char data[256];
  77 };
  78
  79 struct response_buffer_6205 {
  80         struct hpi_response response;
  81         char data[256];
  82 };
  83
  84 union buffer_6205 {
  85         struct message_buffer_6205 message_buffer;
  86         struct response_buffer_6205 response_buffer;
  87         u8 b_data[HPI6205_SIZEOF_DATA];
  88 };
  89
  90 struct bus_master_interface {
  91         u32 host_cmd;
  92         u32 dsp_ack;
  93         u32 transfer_size_in_bytes;
  94         union buffer_6205 u;
  95         struct controlcache_6205 control_cache;
  96         struct async_event_buffer_6205 async_buffer;
  97         struct hpi_hostbuffer_status
  98          instream_host_buffer_status[H620_MAX_ISTREAMS];
  99         struct hpi_hostbuffer_status
 100          outstream_host_buffer_status[H620_MAX_OSTREAMS];
 101 };
 102
 103 #endif