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 19 Host Interface module for an ASI6205 based 20 bus mastering PCI adapter. 21 22 Copyright 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 /********************************************************************* 51 This is used for dynamic control cache allocation 52 **********************************************************************/ 53 struct controlcache_6205 { 54 u32 number_of_controls; 55 u32 physical_address32; 56 u32 size_in_bytes; 57 }; 58 59 /********************************************************************* 60 This is used for dynamic allocation of async event array 61 **********************************************************************/ 62 struct async_event_buffer_6205 { 63 u32 physical_address32; 64 u32 spare; 65 struct hpi_fifo_buffer b; 66 }; 67 68 /*********************************************************** 69 The Host located memory buffer that the 6205 will bus master 70 in and out of. 71 ************************************************************/ 72 #define HPI6205_SIZEOF_DATA (16*1024) 73 74 struct message_buffer_6205 { 75 struct hpi_message message; 76 char data[256]; 77 }; 78 79 struct response_buffer_6205 { 80 struct hpi_response response; 81 char data[256]; 82 }; 83 84 union 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 90 struct 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