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Release 4.7 sound/pci/asihpi/hpi6205.h

Directory: sound/pci/asihpi
/*****************************************************************************

    AudioScience HPI driver
    Copyright (C) 1997-2011  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

Host Interface module for an ASI6205 based
bus mastering PCI adapter.

Copyright AudioScience, Inc., 2003
******************************************************************************/

#ifndef _HPI6205_H_

#define _HPI6205_H_

#include "hpi_internal.h"

/***********************************************************
        Defines used for basic messaging
************************************************************/

#define H620_HIF_RESET          0

#define H620_HIF_IDLE           1

#define H620_HIF_GET_RESP       2

#define H620_HIF_DATA_DONE      3

#define H620_HIF_DATA_MASK      0x10

#define H620_HIF_SEND_DATA      0x14

#define H620_HIF_GET_DATA       0x15

#define H620_HIF_UNKNOWN                0x0000ffff

/***********************************************************
        Types used for mixer control caching
************************************************************/


#define H620_MAX_ISTREAMS 32

#define H620_MAX_OSTREAMS 32

#define HPI_NMIXER_CONTROLS 2048

/*********************************************************************
This is used for dynamic control cache allocation
**********************************************************************/

struct controlcache_6205 {
	
u32 number_of_controls;
	
u32 physical_address32;
	
u32 size_in_bytes;
};

/*********************************************************************
This is used for dynamic allocation of async event array
**********************************************************************/

struct async_event_buffer_6205 {
	
u32 physical_address32;
	
u32 spare;
	
struct hpi_fifo_buffer b;
};

/***********************************************************
The Host located memory buffer that the 6205 will bus master
in and out of.
************************************************************/

#define HPI6205_SIZEOF_DATA (16*1024)


struct message_buffer_6205 {
	
struct hpi_message message;
	
char data[256];
};


struct response_buffer_6205 {
	
struct hpi_response response;
	
char data[256];
};


union buffer_6205 {
	
struct message_buffer_6205 message_buffer;
	
struct response_buffer_6205 response_buffer;
	
u8 b_data[HPI6205_SIZEOF_DATA];
};


struct bus_master_interface {
	
u32 host_cmd;
	
u32 dsp_ack;
	
u32 transfer_size_in_bytes;
	
union buffer_6205 u;
	
struct controlcache_6205 control_cache;
	
struct async_event_buffer_6205 async_buffer;
	struct hpi_hostbuffer_status
	 
instream_host_buffer_status[H620_MAX_ISTREAMS];
	struct hpi_hostbuffer_status
	 
outstream_host_buffer_status[H620_MAX_OSTREAMS];
};

#endif

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Directory: sound/pci/asihpi
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