usb.h

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without ev

/***************************************
 * usb.h based on sunkbd_hid.h
 * http://sourceforge.net/projects/ezhid
 * maintainer:
 * Arnim Laeuger
 * [e-mail]
 ***************************************/



/* USB descriptor type */

/* Supported: */ 
#define USB_DT_DEVICE            0x01
#define USB_DT_CONFIG            0x02
#define USB_DT_STRING            0x03


/* Not Supported: */
#define USB_DT_INTERFACE         0x04
#define USB_DT_ENDPOINT          0x05


/* fundamental data type */
typedef unsigned char byte;
typedef unsigned short word;

#include "vendor.id" 

/* device descriptor */
static code byte dev_desc[] = {
  0x12, // bLength            : Length of Descriptor
  0x01, // bDescriptorType    : Descriptor Type = Device
  0x00, // bcdUSB (L)         : USB Sepcification 2.0 (L)
  0x02, // bcdUSB (H)         : USB Specification 2.0 (H)
  0xFF, // bDeviceClass       : Device Class 
  0xFF, // bDeviceSubClass    : Device Subclass
  0xFF, // bDeviceProtocol    : Device Protocol
  0x40, // bMaxPacketSize0    : Maximum packet size for EP0
  VENDORID & 0xFF,         // idVendor (L)       : Vendor ID (L)
  (VENDORID >> 8) & 0xFF,  // idVendor (H)       : Vendor ID (H)
  PRODUCTID & 0xFF,        // idProduct(L)       : Product ID (L)
  (PRODUCTID >> 8) & 0xFF, // idProduct(H)       : Product ID (H)
  0x01, // bcdDevice(L)       : Device Release Number (BCD,L)
  0x00, // bcdDevice(H)       : Device Release Number (BCD,H)
  0x01, // iManufacturer      : Manufacturer Index String
  0x00, // iProduct           : Product Index String
  0x00, // iSerialNumber      : Serial Number Index String
  0x01 // bNumConfigurations : Number of Configurations in this Device
};

/* configuration descriptor */
static code byte conf_desc[] = {
  0x09, // bLength            : Legth of the Descriptor
  0x02, // bDecriptorType     : Descriptor Type = Configuration
  0x27, // wTotalLength (L)   : Total Length (L) including interface and endpoint
  0x00, // wTotalLength (H)   : Total Length (H) including interface and endpoint
  0x01, // bNumIterfaces      : Number of interfaces
  0x01, // bConfigurationVal  : Configuration value used by set configuration request
  0x00, // iConfiguration     : Index of String Describing this Configuartion
  0x80, // bmAttributes       : Attributes
  0x32, // MaxPower           : Maximum Power

  /* Interface Descriptor, Interface 0, Alternate Setting 0 */
  0x09, // bLength            : Length
  0x04, // bDescriptorType    : Interface descriptor
  0x00, // bInterfaceNumber   : Zero-based index of this interface
  0x00, // bAlternateSetting  : This alternate setting
  0x03, // bNumEndpoints      : Number of endpoints used for this descriptor
  0xFF, // bInterfaceClass    : Vendor specific
  0x00, // bInterfaceSubClass : 
  0xFF, // bInterfaceProtocol : Vendor specific
  0x00, // iInterface         : Index to sring describing this interface

  /* Bulk Out Endpoint Descriptor, Interface 0, Alternate Setting 0 */
  0x07, // bLength            : Length of Descriptor
  0x05, // bDescriptorType    : Endpoint
  0x01, // bEndpointAddress   : OUT endpoint 1
  0x02, // bmAttributes       : Bulk endpoint
  0x40, // wMaxPacketSize (L) : Maximum data transfer size (L)
  0x00, // wMaxPacketSize (H) : Maximum data transfer size (H)
  0x00, // bInterval          : Polling interval

  /* Bulk In Endpoint Descriptor, Interface 0, Alternate Setting 0 */
  0x07, // bLength            : Length of Descriptor
  0x05, // bDescriptorType    : Endpoint
  0x82, // bEndpointAddress   : IN endpoint 2
  0x02, // bmAttributes       : Bulk endpoint
  0x40, // wMaxPacketSize (L) : Maximum data transfer size (L)
  0x00, // wMaxPacketSize (H) : Maximum data transfer size (H)
  0x00, // bInterval          : Polling interval

  /* Bulk In Endpoint Descriptor, Interface 0, Alternate Setting 0 */
  0x07, // bLength            : Length of Descriptor
  0x05, // bDescriptorType    : Endpoint
  0x84, // bEndpointAddress   : IN endpoint 4
  0x03, // bmAttributes       : Interrupt endpoint
  0x01, // wMaxPacketSize (L) : Maximum data transfer size (L)
  0x00, // wMaxPacketSize (H) : Maximum data transfer size (H)
  0x01  // bInterval          : Polling interval (Every frame)
  
};

/* language ID string descriptor */
static code byte string_langid[] = {0x04, 0x03, 0x00, 0x00};

/* manufacturer ID string */
static code byte string_mfg[] = {
  0x0C, 0x03,
  /* standard requests */
  'H',0,'e',0,'l',0,'l',0,'o',0
};



static data unsigned int string_index[2] = {
  (unsigned int) string_langid,
  (unsigned int) string_mfg
};


/* setup packet structure */
typedef struct {
  byte bmRequestType;
  byte bRequest;
  byte wValueL;
  byte wValueH;
  byte wIndexL;
  byte wIndexH;
  byte wLengthL;
  byte wLengthH;
} setup_data;

static xdata setup_data * data sdata = (xdata setup_data *)&SETUPDAT;
static xdata byte * data in0buf = (xdata byte *)&IN0BUF;
static xdata byte * data out1buf = (xdata byte *)&OUT1BUF;
static xdata byte * data in2buf = (xdata byte *)&IN2BUF;
static xdata byte * data in4buf = (xdata byte *)&IN4BUF;