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
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
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/*********************************************************************
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)
73
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
90struct 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