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Eliot Blennerhassett719f82d2010-04-21 18:17:39 +02001/*****************************************************************************
2
3 AudioScience HPI driver
Eliot Blennerhassettc6c2c9a2011-07-22 15:52:38 +12004 Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
Eliot Blennerhassett719f82d2010-04-21 18:17:39 +02005
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
19Host Interface module for an ASI6205 based
20bus mastering PCI adapter.
21
22Copyright AudioScience, Inc., 2003
23******************************************************************************/
24
25#ifndef _HPI6205_H_
26#define _HPI6205_H_
27
Eliot Blennerhassett719f82d2010-04-21 18:17:39 +020028#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/*********************************************************************
51This is used for dynamic control cache allocation
52**********************************************************************/
53struct controlcache_6205 {
54 u32 number_of_controls;
55 u32 physical_address32;
56 u32 size_in_bytes;
57};
58
59/*********************************************************************
60This is used for dynamic allocation of async event array
61**********************************************************************/
62struct async_event_buffer_6205 {
63 u32 physical_address32;
64 u32 spare;
65 struct hpi_fifo_buffer b;
66};
67
68/***********************************************************
69The Host located memory buffer that the 6205 will bus master
70in and out of.
71************************************************************/
72#define HPI6205_SIZEOF_DATA (16*1024)
Eliot Blennerhassettc6c2c9a2011-07-22 15:52:38 +120073
74struct message_buffer_6205 {
75 struct hpi_message message;
76 char data[256];
77};
78
79struct response_buffer_6205 {
80 struct hpi_response response;
81 char data[256];
82};
83
84union 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
Eliot Blennerhassett719f82d2010-04-21 18:17:39 +020090struct bus_master_interface {
91 u32 host_cmd;
92 u32 dsp_ack;
93 u32 transfer_size_in_bytes;
Eliot Blennerhassettc6c2c9a2011-07-22 15:52:38 +120094 union buffer_6205 u;
Eliot Blennerhassett719f82d2010-04-21 18:17:39 +020095 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