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 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 /* 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 /********************************************************************* 54 This is used for dynamic control cache allocation 55 **********************************************************************/ 56 struct controlcache_6205 { 57 u32 number_of_controls; 58 u32 physical_address32; 59 u32 size_in_bytes; 60 }; 61 62 /********************************************************************* 63 This is used for dynamic allocation of async event array 64 **********************************************************************/ 65 struct async_event_buffer_6205 { 66 u32 physical_address32; 67 u32 spare; 68 struct hpi_fifo_buffer b; 69 }; 70 71 /*********************************************************** 72 The Host located memory buffer that the 6205 will bus master 73 in and out of. 74 ************************************************************/ 75 #define HPI6205_SIZEOF_DATA (16*1024) 76 struct bus_master_interface { 77 u32 host_cmd; 78 u32 dsp_ack; 79 u32 transfer_size_in_bytes; 80 union { 81 struct hpi_message message_buffer; 82 struct hpi_response response_buffer; 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 94