1 files changed, 93 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/ecm.h b/qemu/roms/ipxe/src/drivers/net/ecm.h
new file mode 100644
index 000000000..83d324bdc
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/net/ecm.h
@@ -0,0 +1,93 @@
+#ifndef _ECM_H
+#define _ECM_H
+
+/** @file
+ *
+ * CDC-ECM USB Ethernet driver
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <ipxe/usb.h>
+#include <ipxe/usbnet.h>
+#include <ipxe/cdc.h>
+
+/** CDC-ECM subclass */
+#define USB_SUBCLASS_CDC_ECM 0x06
+
+/** Set Ethernet packet filter */
+#define ECM_SET_ETHERNET_PACKET_FILTER					\
+	( USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE |		\
+	  USB_REQUEST_TYPE ( 0x43 ) )
+
+/** Ethernet packet types */
+enum ecm_ethernet_packet_filter {
+	/** Promiscuous mode */
+	ECM_PACKET_TYPE_PROMISCUOUS = 0x0001,
+	/** All multicast packets */
+	ECM_PACKET_TYPE_ALL_MULTICAST = 0x0002,
+	/** Unicast packets */
+	ECM_PACKET_TYPE_DIRECTED = 0x0004,
+	/** Broadcast packets */
+	ECM_PACKET_TYPE_BROADCAST = 0x0008,
+	/** Specified multicast packets */
+	ECM_PACKET_TYPE_MULTICAST = 0x0010,
+};
+
+/** An Ethernet Functional Descriptor */
+struct ecm_ethernet_descriptor {
+	/** Descriptor header */
+	struct usb_descriptor_header header;
+	/** Descriptor subtype */
+	uint8_t subtype;
+	/** MAC address string */
+	uint8_t mac;
+	/** Ethernet statistics bitmap */
+	uint32_t statistics;
+	/** Maximum segment size */
+	uint16_t mtu;
+	/** Multicast filter configuration */
+	uint16_t mcast;
+	/** Number of wake-on-LAN filters */
+	uint8_t wol;
+} __attribute__ (( packed ));
+
+/** A CDC-ECM network device */
+struct ecm_device {
+	/** USB device */
+	struct usb_device *usb;
+	/** USB bus */
+	struct usb_bus *bus;
+	/** Network device */
+	struct net_device *netdev;
+	/** USB network device */
+	struct usbnet_device usbnet;
+};
+
+/** Interrupt maximum fill level
+ *
+ * This is a policy decision.
+ */
+#define ECM_INTR_MAX_FILL 2
+
+/** Bulk IN maximum fill level
+ *
+ * This is a policy decision.
+ */
+#define ECM_IN_MAX_FILL 8
+
+/** Bulk IN buffer size
+ *
+ * This is a policy decision.
+ */
+#define ECM_IN_MTU ( ETH_FRAME_LEN + 4 /* possible VLAN header */ )
+
+extern struct ecm_ethernet_descriptor *
+ecm_ethernet_descriptor ( struct usb_configuration_descriptor *config,
+			  struct usb_interface_descriptor *interface );
+extern int ecm_fetch_mac ( struct usb_device *usb,
+			   struct ecm_ethernet_descriptor *desc,
+			   uint8_t *hw_addr );
+
+#endif /* _ECM_H */