max80_fw/fpga/usb/usb_desc.conf

# -*- perl -*-
#
# Invoked from usbdescgen.pl
#

usb_languages('en_US', 'sv_SE');

my $vendor_id    = 0x1d50;
my $device_id    = 0x6149;
my $version_id   = 0x0100;

my $serial       = usb_serial('?' x 16);
my $manufacturer = usb_string(''   => 'Peter & Per');
my $product      = usb_string(''   => 'MAX80 I/O card for ABC');

my $mgmt_if, $data_if;

usb_device {
    usb_desc('device',
	     word(0x101),		# USB version
	     usb_class('cdc'),		# Communications device class
	     byte(8),			# Max packet size on endpoint 0
	     word($vendor_id), word($device_id), word($version_id),
	     $manufacturer, $product, $serial,
	     usb_children		# Configuration count
	),

	usb_dset {
	    usb_desc('configuration',
		     usb_totallen,	 # Total length for this dset
		     usb_children,	 # Number of interfaces
		     usb_index,		 # Configuration index
		     usb_string(),	 # Text description (empty)
		     byte(0xc0),	 # Self or bus powered
		     byte(500 >> 1)),	 # Up to 500 mA

		# Management interface
		usb_dset {
		    usb_desc('interface',
			     $mgmt_if = usb_index,
			     byte(0),	# No alternate settings
			     byte(1),	# Endpoint count
			     usb_class('cdc','acm','v25ter'),
			     usb_string()),

			usb_desc('cs_interface.header',
				 word(0x120)), # CDC spec version 1.20

			usb_desc('cs_interface.call_management',
				 byte(0x01), # No AT commands over data
				 byte(0)),   # No interface applicable

			usb_desc('cs_interface.acm',
				 byte(0x04)), # Supports SEND_BREAK

			usb_desc('cs_interface.union',
				 byte(\$mgmt_if),  # Controlling interface
				 byte(\$data_if)), # Data interface

			# EP 3, input: notification
			usb_desc('endpoint',
				 ep_i(3),	# Endpoint 3 input
				 byte(3),	# Interrupt, data
				 word(64),	# Max packet size
				 byte(2)),	# Interval
	    },

		# Data interface
		usb_dset {
		    usb_desc('interface',
			     $data_if = usb_index,
			     byte(0),	# No alternate settings
			     byte(2),	# Endpoint count
			     usb_class('cdc_data'),
			     usb_string()),

			# EP 1, output: downstream data
			usb_desc('endpoint',
				 ep_o(1),
				 byte(2),	# Bulk, data
				 word(64),	# Max packet size
				 byte(0)),      # Interval

			# EP 2, input: upstream data
			usb_desc('endpoint',
				 ep_i(2),
				 byte(3),      # Bulk, data
				 word(64),     # Max packet size
				 byte(0))      # Interval
	    }
    }
};