c6c2c9aba1
Allow for up to 256 bytes of extra data on top of standard hpi request and response sizes. Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*****************************************************************************
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AudioScience HPI driver
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Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation;
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Host Interface module for an ASI6205 based
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bus mastering PCI adapter.
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Copyright AudioScience, Inc., 2003
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******************************************************************************/
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#ifndef _HPI6205_H_
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#define _HPI6205_H_
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#include "hpi_internal.h"
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/***********************************************************
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Defines used for basic messaging
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************************************************************/
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#define H620_HIF_RESET 0
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#define H620_HIF_IDLE 1
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#define H620_HIF_GET_RESP 2
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#define H620_HIF_DATA_DONE 3
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#define H620_HIF_DATA_MASK 0x10
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#define H620_HIF_SEND_DATA 0x14
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#define H620_HIF_GET_DATA 0x15
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#define H620_HIF_UNKNOWN 0x0000ffff
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/***********************************************************
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Types used for mixer control caching
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************************************************************/
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#define H620_MAX_ISTREAMS 32
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#define H620_MAX_OSTREAMS 32
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#define HPI_NMIXER_CONTROLS 2048
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/*********************************************************************
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This is used for dynamic control cache allocation
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**********************************************************************/
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struct controlcache_6205 {
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u32 number_of_controls;
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u32 physical_address32;
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u32 size_in_bytes;
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};
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/*********************************************************************
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This is used for dynamic allocation of async event array
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**********************************************************************/
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struct async_event_buffer_6205 {
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u32 physical_address32;
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u32 spare;
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struct hpi_fifo_buffer b;
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};
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/***********************************************************
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The Host located memory buffer that the 6205 will bus master
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in and out of.
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************************************************************/
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#define HPI6205_SIZEOF_DATA (16*1024)
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struct message_buffer_6205 {
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struct hpi_message message;
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char data[256];
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};
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struct response_buffer_6205 {
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struct hpi_response response;
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char data[256];
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};
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union buffer_6205 {
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struct message_buffer_6205 message_buffer;
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struct response_buffer_6205 response_buffer;
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u8 b_data[HPI6205_SIZEOF_DATA];
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};
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struct bus_master_interface {
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u32 host_cmd;
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u32 dsp_ack;
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u32 transfer_size_in_bytes;
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union buffer_6205 u;
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struct controlcache_6205 control_cache;
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struct async_event_buffer_6205 async_buffer;
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struct hpi_hostbuffer_status
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instream_host_buffer_status[H620_MAX_ISTREAMS];
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struct hpi_hostbuffer_status
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outstream_host_buffer_status[H620_MAX_OSTREAMS];
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};
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#endif
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