sound/pci/asihpi/hpi6205.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*****************************************************************************
   3
   4     AudioScience HPI driver
   5     Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
   6
   7
   8 Host Interface module for an ASI6205 based
   9 bus mastering PCI adapter.
  10
  11 Copyright AudioScience, Inc., 2003
  12 ******************************************************************************/
  13
  14 #ifndef _HPI6205_H_
  15 #define _HPI6205_H_
  16
  17 #include "hpi_internal.h"
  18
  19 /***********************************************************
  20         Defines used for basic messaging
  21 ************************************************************/
  22 #define H620_HIF_RESET          0
  23 #define H620_HIF_IDLE           1
  24 #define H620_HIF_GET_RESP       2
  25 #define H620_HIF_DATA_DONE      3
  26 #define H620_HIF_DATA_MASK      0x10
  27 #define H620_HIF_SEND_DATA      0x14
  28 #define H620_HIF_GET_DATA       0x15
  29 #define H620_HIF_UNKNOWN                0x0000ffff
  30
  31 /***********************************************************
  32         Types used for mixer control caching
  33 ************************************************************/
  34
  35 #define H620_MAX_ISTREAMS 32
  36 #define H620_MAX_OSTREAMS 32
  37 #define HPI_NMIXER_CONTROLS 2048
  38
  39 /*********************************************************************
  40 This is used for dynamic control cache allocation
  41 **********************************************************************/
  42 struct controlcache_6205 {
  43         u32 number_of_controls;
  44         u32 physical_address32;
  45         u32 size_in_bytes;
  46 };
  47
  48 /*********************************************************************
  49 This is used for dynamic allocation of async event array
  50 **********************************************************************/
  51 struct async_event_buffer_6205 {
  52         u32 physical_address32;
  53         u32 spare;
  54         struct hpi_fifo_buffer b;
  55 };
  56
  57 /***********************************************************
  58 The Host located memory buffer that the 6205 will bus master
  59 in and out of.
  60 ************************************************************/
  61 #define HPI6205_SIZEOF_DATA (16*1024)
  62
  63 struct message_buffer_6205 {
  64         struct hpi_message message;
  65         char data[256];
  66 };
  67
  68 struct response_buffer_6205 {
  69         struct hpi_response response;
  70         char data[256];
  71 };
  72
  73 union buffer_6205 {
  74         struct message_buffer_6205 message_buffer;
  75         struct response_buffer_6205 response_buffer;
  76         u8 b_data[HPI6205_SIZEOF_DATA];
  77 };
  78
  79 struct bus_master_interface {
  80         u32 host_cmd;
  81         u32 dsp_ack;
  82         u32 transfer_size_in_bytes;
  83         union buffer_6205 u;
  84         struct controlcache_6205 control_cache;
  85         struct async_event_buffer_6205 async_buffer;
  86         struct hpi_hostbuffer_status
  87          instream_host_buffer_status[H620_MAX_ISTREAMS];
  88         struct hpi_hostbuffer_status
  89          outstream_host_buffer_status[H620_MAX_OSTREAMS];
  90 };
  91
  92 #endif