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sfielding |
//////////////////////////////////////////////////////////////////////
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//// ////
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//// usbROM.v ////
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//// ////
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//// This file is part of the usbHostSlave opencores effort.
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//// <http://www.opencores.org/cores//> ////
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//// ////
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//// Module Description: ////
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//// if you modify this file, be sure to modify usbDevice_define.v
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//// Using RAM rather than logic resources might be a more efficient implememtation
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//// but this has the advantage of working with FPGAs that do not provide a
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//// mechanism for initialising RAM, eg Actel IGLOO
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//// Quartus 7.2 will infer this code as BLOCK RAM, and provide initialisation - nice
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//// ////
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//// To Do: ////
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////
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//// ////
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//// Author(s): ////
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//// - Steve Fielding, sfielding@base2designs.com ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// Copyright (C) 2008 Steve Fielding and OPENCORES.ORG ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from <http://www.opencores.org/lgpl.shtml> ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//
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`include "usbDevice_define.v"
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module usbROM (
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clk,
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addr,
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data
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);
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input clk;
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input [7:0] addr;
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output [7:0] data;
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reg [7:0] data;
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always @(posedge clk) begin
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case (addr)
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// ====================================
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// ===== DEVICE Descriptor =====
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// ====================================
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8'h00: data <= 8'h12; //BYTE bLength
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8'h01: data <= 8'h01; //BYTE bDescriptorType
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8'h02: data <= 8'h10; //WORD (Lo) bcdUSB version supported
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8'h03: data <= 8'h01; //WORD (Hi) bcdUSB version supported
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8'h04: data <= 8'h00; //BYTE bDeviceClass
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8'h05: data <= 8'h00; //BYTE bDeviceSubClass
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8'h06: data <= 8'h00; //BYTE bDeviceProtocol
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8'h07: data <= `MAX_RESP_SIZE; //BYTE bMaxPacketSize
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8'h08: data <= 8'hC7; //WORD (Lo) idVendor
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8'h09: data <= 8'h05; //WORD (Hi) idVendor
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8'h0a: data <= 8'h13; //WORD (Lo) idProduct; For Philips Hub mouse
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8'h0b: data <= 8'h01; //WORD (Hi) idProduct; For Philips Hub mouse
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8'h0c: data <= 8'h01; //WORD (Lo) bcdDevice
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8'h0d: data <= 8'h00; //WORD (Hi) bcdDevice
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8'h0e: data <= 8'h01; //BYTE iManufacturer
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8'h0f: data <= 8'h02; //BYTE iProduct
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8'h10: data <= 8'h03; //BYTE iSerialNumber
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8'h11: data <= 8'h01; //BYTE bNumConfigurations
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// ====================================
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// ===== Configuration Descriptor =====
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// ====================================
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8'h12: data <= 8'h09; //BYTE bLength (Configuration descriptor)
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8'h13: data <= 8'h02; //BYTE bDescriptorType //Assigned by USB
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8'h14: data <= 8'd34; //WORD (Lo) wTotalLength
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8'h15: data <= 8'h00; //WORD (Hi) wTotalLength
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8'h16: data <= 8'h01; //BYTE bNumInterfaces
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8'h17: data <= 8'h01; //BYTE bConfigurationValue
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8'h18: data <= 8'h00; //BYTE iConfiguration
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8'h19: data <= 8'ha0; //BYTE bmAttributes, Bus powered and remote wakeup
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8'h1a: data <= 8'h32; //BYTE MaxPower, 100mA
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// ====================================
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// ===== Interface Descriptor =====
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// ====================================
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8'h1b: data <= 8'h09; //BYTE bLength (Interface descriptor)
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8'h1c: data <= 8'h04; //BYTE bDescriptionType; assigned by USB
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8'h1d: data <= 8'h00; //BYTE bInterfaceNumber
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8'h1e: data <= 8'h00; //BYTE bAlternateSetting
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8'h1f: data <= 8'h01; //BYTE bNumEndpoints; uses 1 endpoints
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8'h20: data <= 8'h03; //BYTE bInterfaceClass; HID Class - 0x03
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8'h21: data <= 8'h01; //BYTE bInterfaceSubClass
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8'h22: data <= 8'h02; //BYTE bInterfaceProtocol
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8'h23: data <= 8'h00; //BYTE iInterface
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// ====================================
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// ===== HID Descriptor =====
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// ====================================
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8'h24: data <= 8'h09; //BYTE bLength (HID Descriptor)
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8'h25: data <= 8'h21; //BYTE bDescriptorType
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8'h26: data <= 8'h10; //WORD (Lo) bcdHID
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8'h27: data <= 8'h01; //WORD (Hi) bcdHID
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8'h28: data <= 8'h00; //BYTE bCountryCode
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8'h29: data <= 8'h01; //BYTE bNumDescriptors
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8'h2a: data <= 8'h22; //BYTE bReportDescriptorType
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8'h2b: data <= 8'h32; //WORD (Lo) wItemLength
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8'h2c: data <= 8'h00; //WORD (Hi) wItemLength
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// ====================================
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// ===== Endpoint 1 Descriptor =====
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// ====================================
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8'h2d: data <= 8'h07; //BYTE bLength (Endpoint Descriptor)
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8'h2e: data <= 8'h05; //BYTE bDescriptorType; assigned by USB
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8'h2f: data <= 8'h81; //BYTE bEndpointAddress; IN endpoint; endpoint 1
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8'h30: data <= 8'h03; //BYTE bmAttributes; Interrupt endpoint
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8'h31: data <= 8'h10; //WORD (Lo) wMaxPacketSize
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8'h32: data <= 8'h00; //WORD (Hi) wMaxPacketSize
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8'h33: data <= 8'hFF; //BYTE bInterval
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// ====================================
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// ===== Report Descriptor =====
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// ====================================
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8'h3a: data <= 8'h05; 8'h3b: data <= 8'h01; // USAGE_PAGE (Generic Desktop)
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8'h3c: data <= 8'h09; 8'h3d: data <= 8'h02; // USAGE (Mouse)
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8'h3e: data <= 8'ha1; 8'h3f: data <= 8'h01; // COLLECTION (Application)
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8'h40: data <= 8'h09; 8'h41: data <= 8'h01; // USAGE (Pointer)
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8'h42: data <= 8'ha1; 8'h43: data <= 8'h00; // COLLECTION (Physical)
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8'h44: data <= 8'h05; 8'h45: data <= 8'h09; // USAGE_PAGE (Button)
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8'h46: data <= 8'h19; 8'h47: data <= 8'h01; // USAGE_MINIMUM (Button 1)
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8'h48: data <= 8'h29; 8'h49: data <= 8'h03; // USAGE_MAXIMUM (Button 3)
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8'h4a: data <= 8'h15; 8'h4b: data <= 8'h00; // LOGICAL_MINIMUM (0)
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8'h4c: data <= 8'h25; 8'h4d: data <= 8'h01; // LOGICAL_MAXIMUM (1)
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8'h4e: data <= 8'h95; 8'h4f: data <= 8'h03; // REPORT_COUNT (3)
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8'h50: data <= 8'h75; 8'h51: data <= 8'h01; // REPORT_SIZE (1)
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8'h52: data <= 8'h81; 8'h53: data <= 8'h02; // INPUT (Data,Var,Abs)
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8'h54: data <= 8'h95; 8'h55: data <= 8'h01; // REPORT_COUNT (1)
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8'h56: data <= 8'h75; 8'h57: data <= 8'h05; // REPORT_SIZE (5)
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8'h58: data <= 8'h81; 8'h59: data <= 8'h01; // INPUT (Cnst,Var,Rel)
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8'h5a: data <= 8'h05; 8'h5b: data <= 8'h01; // USAGE_PAGE (Generic Desktop)
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8'h5c: data <= 8'h09; 8'h5d: data <= 8'h30; // USAGE (X)
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8'h5e: data <= 8'h09; 8'h5f: data <= 8'h31; // USAGE (Y)
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8'h60: data <= 8'h15; 8'h61: data <= 8'h81; // LOGICAL_MINIMUM (-127)
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8'h62: data <= 8'h25; 8'h63: data <= 8'h7f; // LOGICAL_MAXIMUM (127)
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8'h64: data <= 8'h75; 8'h65: data <= 8'h08; // REPORT_SIZE (8)
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8'h66: data <= 8'h95; 8'h67: data <= 8'h02; // REPORT_COUNT (2)
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8'h68: data <= 8'h81; 8'h69: data <= 8'h06; // INPUT (Data,Var,Rel)
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8'h6a: data <= 8'hc0; //END_COLLECTION
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8'h6b: data <= 8'hc0; // END_COLLECTION
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// ZERO_ZERO
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8'h6c: data <= 8'h00;
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8'h6d: data <= 8'h00;
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// ONE_ZERO
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8'h6e: data <= 8'h01;
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8'h6f: data <= 8'h00;
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// Vendor data
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8'h70: data <= 8'h00;
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8'h71: data <= 8'h00;
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// =============================================
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// ===== Language ID Descriptor(String0) =====
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// =============================================
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8'h80: data <= 8'h04; // bLength
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8'h81: data <= 8'h03; // bDescriptorType = String Desc
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8'h82: data <= 8'h09; // wLangID (Lo) (Lang ID for English = 0x0409)
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8'h83: data <= 8'h04; // wLangID (Hi) (Lang ID for English = 0x0409)
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// ====================================
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// ===== string 1 Descriptor =====
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// ====================================
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8'h90: data <= 8'd26; // bLength
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8'h91: data <= 8'h03; // bDescriptorType = String Desc
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// Noting that text is always unicode, hence the 'padding'
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8'h92: data <= "B"; 8'h93: data <= 8'h00;
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8'h94: data <= "a"; 8'h95: data <= 8'h00;
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8'h96: data <= "s"; 8'h97: data <= 8'h00;
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8'h98: data <= "e"; 8'h99: data <= 8'h00;
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8'h9a: data <= "2"; 8'h9b: data <= 8'h00;
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8'h9c: data <= "D"; 8'h9d: data <= 8'h00;
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8'h9e: data <= "e"; 8'h9f: data <= 8'h00;
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8'ha0: data <= "s"; 8'ha1: data <= 8'h00;
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8'ha2: data <= "i"; 8'ha3: data <= 8'h00;
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8'ha4: data <= "g"; 8'ha5: data <= 8'h00;
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8'ha6: data <= "n"; 8'ha7: data <= 8'h00;
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8'ha8: data <= "s"; 8'ha9: data <= 8'h00;
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// ====================================
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// ===== string 2 Descriptor =====
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// ====================================
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8'hb0: data <= 8'd20; // bLength
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8'hb1: data <= 8'h03; // bDescriptorType = String Desc
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// Noting that text is always unicode, hence the 'padding'
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8'hb2: data <= "B"; 8'hb3: data <= 8'h00;
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8'hb4: data <= "2"; 8'hb5: data <= 8'h00;
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8'hb6: data <= "D"; 8'hb7: data <= 8'h00;
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8'hb8: data <= " "; 8'hb9: data <= 8'h00;
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8'hba: data <= "M"; 8'hbb: data <= 8'h00;
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8'hbc: data <= "o"; 8'hbd: data <= 8'h00;
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8'hbe: data <= "u"; 8'hbf: data <= 8'h00;
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8'hc0: data <= "s"; 8'hc1: data <= 8'h00;
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8'hc2: data <= "e"; 8'hc3: data <= 8'h00;
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// ====================================
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// ===== string 3 Descriptor =====
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// ====================================
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8'hd0: data <= 8'd30; // bLength
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8'hd1: data <= 8'h03; // bDescriptorType = String Desc
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// Noting that text is always unicode, hence the 'padding'
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8'hd2: data <= "L"; 8'hd3: data <= 8'h00;
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8'hd4: data <= "i"; 8'hd5: data <= 8'h00;
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8'hd6: data <= "m"; 8'hd7: data <= 8'h00;
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8'hd8: data <= "i"; 8'hd9: data <= 8'h00;
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8'hda: data <= "t"; 8'hdb: data <= 8'h00;
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8'hdc: data <= "e"; 8'hdd: data <= 8'h00;
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8'hde: data <= "d"; 8'hdf: data <= 8'h00;
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8'he0: data <= "E"; 8'he1: data <= 8'h00;
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8'he2: data <= "d"; 8'he3: data <= 8'h00;
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8'he4: data <= "i"; 8'he5: data <= 8'h00;
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8'he6: data <= "t"; 8'he7: data <= 8'h00;
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8'he8: data <= "i"; 8'he9: data <= 8'h00;
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8'hea: data <= "o"; 8'heb: data <= 8'h00;
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8'hec: data <= "n"; 8'hed: data <= 8'h00;
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default: data <= 8'h00;
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endcase
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end
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endmodule
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