--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usb.h	Mon Dec 12 23:32:59 2005 +1030
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2003 Bernd Walter
+ * All rights reserved.
+ */
+
+/*  Example Source Code for USB Enumeration using a PDIUSBD11 connected to a PIC16F87x
+ *  Copyright 2001 Craig Peacock, Craig.Peacock@beyondlogic.org
+ *  31th December 2001 http://www.beyondlogic.org            				      
+ */
+
+typedef struct {
+    uint8_t bmRequestType;
+    uint8_t bRequest;
+    uint16_t wValue;
+    uint16_t wIndex;
+    uint16_t wLength;
+} USB_SETUP_REQUEST;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint16_t bcdUSB;
+    uint8_t bDeviceClass;
+    uint8_t bDeviceSubClass;
+    uint8_t bDeviceProtocol;
+    uint8_t bMaxPacketSize0;
+    uint16_t idVendor;
+    uint16_t idProduct;
+    uint16_t bcdDevice;
+    uint8_t iManufacturer;
+    uint8_t iProduct;
+    uint8_t iSerialNumber;
+    uint8_t bNumConfigurations;
+} USB_DEVICE_DESCRIPTOR;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint8_t bEndpointAddress;
+    uint8_t bmAttributes;
+    uint16_t wMaxPacketSize;
+    uint8_t bInterval;
+} USB_ENDPOINT_DESCRIPTOR;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint16_t wTotalLength;
+    uint8_t bNumInterfaces;
+    uint8_t bConfigurationValue;
+    uint8_t iConfiguration;
+    uint8_t bmAttributes;
+    uint8_t MaxPower;
+} USB_CONFIGURATION_DESCRIPTOR;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint8_t bInterfaceNumber;
+    uint8_t bAlternateSetting;
+    uint8_t bNumEndpoints;
+    uint8_t bInterfaceClass;
+    uint8_t bInterfaceSubClass;
+    uint8_t bInterfaceProtocol;
+    uint8_t iInterface;
+} USB_INTERFACE_DESCRIPTOR;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint16_t wHIDClassSpecComp;
+    uint8_t bCountry;
+    uint8_t bNumDescriptors;
+    uint8_t b1stDescType;
+    uint16_t w1stDescLength;
+} USB_HID_DESCRIPTOR;
+
+typedef struct {
+    USB_CONFIGURATION_DESCRIPTOR ConfigDescriptor;
+    USB_INTERFACE_DESCRIPTOR InterfaceDescriptor0;
+    USB_ENDPOINT_DESCRIPTOR EndpointDescriptor00;
+    USB_ENDPOINT_DESCRIPTOR EndpointDescriptor01;
+    USB_INTERFACE_DESCRIPTOR InterfaceDescriptor1;
+    USB_ENDPOINT_DESCRIPTOR EndpointDescriptor10;
+    USB_ENDPOINT_DESCRIPTOR EndpointDescriptor11;
+} USB_CONFIG_DATA;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    char     bString[];
+} STRING_DESCRIPTOR;
+
+typedef struct {
+    uint8_t bLength;
+    uint8_t bDescriptorType;
+    uint16_t wLANGID0;
+} LANGID_DESCRIPTOR;
+
+#define D12_SET_ADDRESS_ENABLE		0xD0
+#define D12_SET_ENDPOINT_ENABLE  	0xD8
+#define D12_SET_MODE			0xF3
+#define D12_SET_DMA			0xFB
+#define D12_READ_INTERRUPT_REGISTER 	0xF4
+#define D12_READ_BUFFER			0xF0
+#define D12_WRITE_BUFFER		0xF0
+#define D12_ACK_SETUP			0xF1
+#define D12_CLEAR_BUFFER		0xF2
+#define D12_VALIDATE_BUFFER		0xFA
+#define D12_READ_LAST_TRANSACTION	0x40
+#define D12_SET_ENDPOINT_STATUS		0x40
+#define D12_READ_ENDPOINT_STATUS	0x80
+
+#define D12_ENDPOINT_EP0_OUT 		0x00
+#define D12_ENDPOINT_EP0_IN 		0x01
+#define D12_ENDPOINT_EP1_OUT 		0x02
+#define D12_ENDPOINT_EP1_IN 		0x03
+#define D12_ENDPOINT_EP2_OUT 		0x04
+#define D12_ENDPOINT_EP2_IN 		0x05
+
+#define D12_INT_EP0_OUT			0x01
+#define D12_INT_EP0_IN			0x02
+#define D12_INT_EP1_OUT			0x04
+#define D12_INT_EP1_IN			0x08
+#define D12_INT_EP2_OUT			0x10
+#define D12_INT_EP2_IN			0x20
+#define D12_INT_BUS_RESET		0x40
+#define D12_INT_SUSPEND			0x80
+
+#define D12_LAST_TRAN_SETUP		0x20
+
+#define STANDARD_DEVICE_REQUEST		0x00
+#define STANDARD_INTERFACE_REQUEST	0x01
+#define STANDARD_ENDPOINT_REQUEST	0x02
+#define VENDOR_DEVICE_REQUEST		0x40
+#define VENDOR_INTERFACE_REQUEST	0x41
+#define VENDOR_ENDPOINT_REQUEST		0x42
+
+#define GET_STATUS  			0
+#define CLEAR_FEATURE     		1
+#define SET_FEATURE                 	3
+#define SET_ADDRESS                 	5
+#define GET_DESCRIPTOR              	6
+#define SET_DESCRIPTOR              	7
+#define GET_CONFIGURATION           	8
+#define SET_CONFIGURATION           	9
+#define GET_INTERFACE               	10
+#define SET_INTERFACE               	11
+#define SYNCH_FRAME                 	12
+
+#define VENDOR_UPDATE			126
+#define VENDOR_RESET			127
+
+#define	ENDPOINT_HALT			0
+
+#define TYPE_DEVICE_DESCRIPTOR          1
+#define TYPE_CONFIGURATION_DESCRIPTOR   2
+#define TYPE_STRING_DESCRIPTOR          3
+#define TYPE_INTERFACE_DESCRIPTOR       4
+#define TYPE_ENDPOINT_DESCRIPTOR        5
+#define TYPE_HID_DESCRIPTOR		0x21
+
+#define USB_ENDPOINT_TYPE_CONTROL	0x00
+#define USB_ENDPOINT_TYPE_ISOCHRONOUS	0x01
+#define USB_ENDPOINT_TYPE_BULK		0x02
+#define USB_ENDPOINT_TYPE_INTERRUPT	0x03
+
+/* Function prototypes */
+uint8_t		d12_get_data(void);
+void		d12_set_data(uint8_t data);
+void		d12_set_cmd(uint8_t cmd);
+void		d12_write_cmd(uint8_t command, const uint8_t *buffer, uint8_t count);
+void		d12_read_cmd(uint8_t command, uint8_t *buffer, uint8_t count);
+uint8_t		d12_read_endpt(uint8_t endpt, uint8_t *buffer);
+
+void		d12_ep0_irq(void);
+void		d12_getdescriptor(USB_SETUP_REQUEST *SetupPacket);
+void		d12_stallctrlendpt(void);
+uint8_t		d12_read_endpt(uint8_t endpt, uint8_t *buffer);
+void		d12_write_endpt(uint8_t endpt, const uint8_t *buffer, uint8_t bytes);
+void		d12_write_buffer_ep0(void);
+void		d12_send_data_ep2(void);
+void		d12_receive_data_ep2(void);
+
+static void	reset(void);
+
+void		usb_init(void);
+void		usb_intr(void);
+void		usb_gendata(void);