A51 MACRO ASSEMBLER  DSCR                                                                   26/07/00 13:53:28 PAGE     1


DOS MACRO ASSEMBLER A51 V5.50
OBJECT MODULE PLACED IN DSCR.OBJ
ASSEMBLER INVOKED BY: C:\C51\BIN\A51.EXE DSCR.A51 EP

LOC  OBJ            LINE     SOURCE

                       1     ;;-----------------------------------------------------------------------------
                       2     ;;      File:           dscr.a51
                       3     ;;      Contents:       This file contains descriptor data tables.  
                       4     ;;
                       5     ;;      Copyright (c) 1997 AnchorChips, Inc. All rights reserved
                       6     ;;      Adapted for use with HIDs by Jan Axelson (jan@lvr.com)
                       7     ;;-----------------------------------------------------------------------------
                       8     
                       9     ; These tables are adapted to work with the usbhidio code available from www.lvr.com.
                      10     ; The descriptors are for a vendor-defined HID-class device that exchanges
                      11     ; blocks of generic data with the host.
                      12     ; Uses Lakeview Research's Vendor ID.
                      13     ; The interface descriptor describes a HID.
                      14     ; Also added were a HID descriptor, two interrupt endpoints, and a report descriptor.
                      15     ; The string descriptors were changed.
                      16     
  0001                17     DSCR_DEVICE     equ     1       ;; Descriptor type: Device
  0002                18     DSCR_CONFIG     equ     2       ;; Descriptor type: Configuration
  0003                19     DSCR_STRING     equ     3       ;; Descriptor type: String
  0004                20     DSCR_INTRFC     equ     4       ;; Descriptor type: Interface
  0005                21     DSCR_ENDPNT     equ     5       ;; Descriptor type: Endpoint
                      22     
  0000                23     ET_CONTROL      equ     0       ;; Endpoint type: Control
  0001                24     ET_ISO          equ     1       ;; Endpoint type: Isochronous
  0002                25     ET_BULK         equ     2       ;; Endpoint type: Bulk
  0003                26     ET_INT          equ     3       ;; Endpoint type: Interrupt
                      27     
                      28     public          DeviceDscr, ConfigDscr, StringDscr, UserDscr, ReportDscr, ReportDscrEnd
                      29     
                      30     DSCR    SEGMENT CODE
                      31     
                      32     ;;-----------------------------------------------------------------------------
                      33     ;; Global Variables
                      34     ;;-----------------------------------------------------------------------------
----                  35                     rseg DSCR               ;; locate the descriptor table in on-part memory.
                      36     
0000 12               37     DeviceDscr:     db      deviceDscrEnd-DeviceDscr                ;; Descriptor length
0001 01               38                     db      DSCR_DEVICE     ;; Decriptor type
0002 1001             39                     db      10H, 01H                ;; Specification Version (BCD)
0004 00               40                     db      00H             ;; Device class
0005 00               41                     db      00H             ;; Device sub-class
0006 00               42                     db      00H             ;; Device sub-sub-class
0007 40               43                     db      64              ;; Maximum packet size
0008 2509             44                     db      25H, 09H        ;; Vendor ID
000A 3412             45                     db      34H, 12H        ;; Product ID
000C 0001             46                     dw      0001H           ;; Product version ID
000E 01               47                     db      1               ;; Manufacturer string index
000F 02               48                     db      2               ;; Product string index
0010 00               49                     db      0               ;; Serial number string index
0011 01               50                     db      1               ;; Numder of configurations
0012                  51     deviceDscrEnd:
                      52     
0012 09               53     ConfigDscr:     db      ConfigDscrEnd-ConfigDscr                ;; Descriptor length
0013 02               54                     db      DSCR_CONFIG     ;; Descriptor type
0014 29               55                     db      EPAllDscrEnd-ConfigDscr ;; Configuration + End Points length (LSB)
0015 00               56                     db      00              ;; Configuration length (MSB)
0016 01               57                     db      1               ;; Number of interfaces
0017 01               58                     db      1               ;; Interface number
A51 MACRO ASSEMBLER  DSCR                                                                   26/07/00 13:53:28 PAGE     2

0018 00               59                     db      0               ;; Configuration string
0019 A0               60                     db      10100000b       ;; Attributes (b7 - buspwr, b6 - selfpwr, b5 - rwu)
001A 19               61                     db      25              ;; Power requirement (div 2 ma)
001B                  62     ConfigDscrEnd:
                      63     
001B                  64     IntrfcDscr:
001B 09               65                     db      IntrfcDscrEnd-IntrfcDscr                ;; Descriptor length
001C 04               66                     db      DSCR_INTRFC     ;; Descriptor type
001D 00               67                     db      0               ;; Zero-based index of this interface
001E 00               68                     db      0               ;; Alternate setting
001F 02               69                     db      2               ;; Number of end points 
0020 03               70                     db      03H             ;; Interface class
0021 00               71                     db      00H             ;; Interface sub class
0022 00               72                     db      00H             ;; Interface sub sub class
0023 00               73                     db      0               ;; Interface descriptor string index
0024                  74     IntrfcDscrEnd:
                      75     
0024                  76     HIDDscr:
0024 09               77                     db      9               ;; Length
0025 21               78                     db      21H             ;; Type
0026 1001             79                     db      10H, 01H        ;; HID class spec.# compliance (0110 = 1.1)
0028 00               80                     db      0               ;; Country localization (0=none)
0029 01               81                     db      1               ;; Number of descriptors to follow (excluding endpo
                             int)
002A 22               82                     db      22H             ;; Descriptor type to follow (report)
002B 3400             83                     db      ReportDscrEnd - ReportDscr, 0   ;; Report descriptor length
                      84                     
002D                  85     HIDDscrEnd:
                      86     
002D                  87     EpO2Dscr:
002D 07               88                     db      EpO2DscrEnd-EpO2Dscr            ;; Descriptor length
002E 05               89                     db      DSCR_ENDPNT     ;; Descriptor type
002F 02               90                     db      00000010b       ;; Endpoint number, and direction
0030 03               91                     db      ET_INT          ;; Endpoint type
0031 40               92                     db      40H             ;; Maximun packet size (LSB)
0032 00               93                     db      00H             ;; Max packect size (MSB)
0033 64               94                     db      100             ;; Polling interval
0034                  95     EpO2DscrEnd:
                      96                     
0034                  97     EpI1Dscr:
0034 07               98                     db      EpI1DscrEnd-EpI1Dscr            ;; Descriptor length
0035 05               99                     db      DSCR_ENDPNT     ;; Descriptor type
0036 81              100                     db      10000001b       ;; Endpoint number, and direction
0037 03              101                     db      ET_INT          ;; Endpoint type
0038 40              102                     db      40H             ;; Maximun packet size (LSB)
0039 00              103                     db      00H             ;; Max packect size (MSB)
003A 64              104                     db      100             ;; Polling interval
003B                 105     EpI1DscrEnd:
                     106     
003B                 107     EpAllDscrEnd:
                     108     
003B                 109     ReportDscr:
003B 06A0FF          110                     db      06H, 0A0H, 0FFH ;; Usage Page (FFA0H = vendor defined)
003E 0901            111                     db      09H, 01H        ;; Usage (Vendor defined)
0040 A101            112                     db      0A1H, 01H       ;; Collection (Application)