ALSA: asihpi - Interrelated HPI tidy up.
[deliverable/linux.git] / sound / pci / asihpi / hpi6205.h
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1/*****************************************************************************
2
3 AudioScience HPI driver
4 Copyright (C) 1997-2010 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/* transitional conditional compile shared between host and DSP */
29/* #define HPI6205_NO_HSR_POLL */
30
31#include "hpi_internal.h"
32
33/***********************************************************
34 Defines used for basic messaging
35************************************************************/
36#define H620_HIF_RESET 0
37#define H620_HIF_IDLE 1
38#define H620_HIF_GET_RESP 2
39#define H620_HIF_DATA_DONE 3
40#define H620_HIF_DATA_MASK 0x10
41#define H620_HIF_SEND_DATA 0x14
42#define H620_HIF_GET_DATA 0x15
43#define H620_HIF_UNKNOWN 0x0000ffff
44
45/***********************************************************
46 Types used for mixer control caching
47************************************************************/
48
49#define H620_MAX_ISTREAMS 32
50#define H620_MAX_OSTREAMS 32
51#define HPI_NMIXER_CONTROLS 2048
52
53/*********************************************************************
54This is used for dynamic control cache allocation
55**********************************************************************/
56struct controlcache_6205 {
57 u32 number_of_controls;
58 u32 physical_address32;
59 u32 size_in_bytes;
60};
61
62/*********************************************************************
63This is used for dynamic allocation of async event array
64**********************************************************************/
65struct async_event_buffer_6205 {
66 u32 physical_address32;
67 u32 spare;
68 struct hpi_fifo_buffer b;
69};
70
71/***********************************************************
72The Host located memory buffer that the 6205 will bus master
73in and out of.
74************************************************************/
75#define HPI6205_SIZEOF_DATA (16*1024)
76struct bus_master_interface {
77 u32 host_cmd;
78 u32 dsp_ack;
79 u32 transfer_size_in_bytes;
80 union {
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81 struct hpi_message_header message_buffer;
82 struct hpi_response_header response_buffer;
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83 u8 b_data[HPI6205_SIZEOF_DATA];
84 } u;
85 struct controlcache_6205 control_cache;
86 struct async_event_buffer_6205 async_buffer;
87 struct hpi_hostbuffer_status
88 instream_host_buffer_status[H620_MAX_ISTREAMS];
89 struct hpi_hostbuffer_status
90 outstream_host_buffer_status[H620_MAX_OSTREAMS];
91};
92
93#endif
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