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TOMOYO Linux Cross Reference
Linux/sound/pci/asihpi/hpi6205.h

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  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
104 

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