Start working at dfu by copying from main openpcd repository (with modifications), doesn't boot application yet

git-svn-id: https://svn.openpcd.org:2342/trunk@315 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

3 files changed, 640 insertions, 0 deletions

diff --git a/openpicc/include/compile.h b/openpicc/include/compile.h
new file mode 100644
index 0000000..14ec5dd
--- /dev/null
+++ b/openpicc/include/compile.h
@@ -0,0 +1,9 @@
+#ifndef _COMPILE_H
+#define _COMPILE_H
+
+/* This file is auto generated */
+#define COMPILE_DATE "20071107-171917"
+#define COMPILE_BY "henryk@dawn.ploetzli.ch"
+#define COMPILE_SVNREV "313-unclean"
+
+#endif /* _COMPILE_H */
diff --git a/openpicc/include/usb_ch9.h b/openpicc/include/usb_ch9.h
new file mode 100644
index 0000000..46066f2
--- /dev/null
+++ b/openpicc/include/usb_ch9.h
@@ -0,0 +1,550 @@
+/*
+ * This file holds USB constants and structures that are needed for USB
+ * device APIs.  These are used by the USB device model, which is defined
+ * in chapter 9 of the USB 2.0 specification.  Linux has several APIs in C
+ * that need these:
+ *
+ * - the master/host side Linux-USB kernel driver API;
+ * - the "usbfs" user space API; and
+ * - the Linux "gadget" slave/device/peripheral side driver API.
+ *
+ * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems
+ * act either as a USB master/host or as a USB slave/device.  That means
+ * the master and slave side APIs benefit from working well together.
+ *
+ * There's also "Wireless USB", using low power short range radios for
+ * peripheral interconnection but otherwise building on the USB framework.
+ */
+
+#ifndef __LINUX_USB_CH9_H
+#define __LINUX_USB_CH9_H
+
+#include <sys/types.h>
+
+/*-------------------------------------------------------------------------*/
+
+/* CONTROL REQUEST SUPPORT */
+
+/*
+ * USB directions
+ *
+ * This bit flag is used in endpoint descriptors' bEndpointAddress field.
+ * It's also one of three fields in control requests bRequestType.
+ */
+#define USB_DIR_OUT			0		/* to device */
+#define USB_DIR_IN			0x80		/* to host */
+
+/*
+ * USB types, the second of three bRequestType fields
+ */
+#define USB_TYPE_MASK			(0x03 << 5)
+#define USB_TYPE_STANDARD		(0x00 << 5)
+#define USB_TYPE_CLASS			(0x01 << 5)
+#define USB_TYPE_VENDOR			(0x02 << 5)
+#define USB_TYPE_RESERVED		(0x03 << 5)
+
+/*
+ * USB recipients, the third of three bRequestType fields
+ */
+#define USB_RECIP_MASK			0x1f
+#define USB_RECIP_DEVICE		0x00
+#define USB_RECIP_INTERFACE		0x01
+#define USB_RECIP_ENDPOINT		0x02
+#define USB_RECIP_OTHER			0x03
+
+/*
+ * Standard requests, for the bRequest field of a SETUP packet.
+ *
+ * These are qualified by the bRequestType field, so that for example
+ * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
+ * by a GET_STATUS request.
+ */
+#define USB_REQ_GET_STATUS		0x00
+#define USB_REQ_CLEAR_FEATURE		0x01
+#define USB_REQ_SET_FEATURE		0x03
+#define USB_REQ_SET_ADDRESS		0x05
+#define USB_REQ_GET_DESCRIPTOR		0x06
+#define USB_REQ_SET_DESCRIPTOR		0x07
+#define USB_REQ_GET_CONFIGURATION	0x08
+#define USB_REQ_SET_CONFIGURATION	0x09
+#define USB_REQ_GET_INTERFACE		0x0A
+#define USB_REQ_SET_INTERFACE		0x0B
+#define USB_REQ_SYNCH_FRAME		0x0C
+
+#define USB_REQ_SET_ENCRYPTION		0x0D	/* Wireless USB */
+#define USB_REQ_GET_ENCRYPTION		0x0E
+#define USB_REQ_SET_HANDSHAKE		0x0F
+#define USB_REQ_GET_HANDSHAKE		0x10
+#define USB_REQ_SET_CONNECTION		0x11
+#define USB_REQ_SET_SECURITY_DATA	0x12
+#define USB_REQ_GET_SECURITY_DATA	0x13
+#define USB_REQ_SET_WUSB_DATA		0x14
+#define USB_REQ_LOOPBACK_DATA_WRITE	0x15
+#define USB_REQ_LOOPBACK_DATA_READ	0x16
+#define USB_REQ_SET_INTERFACE_DS	0x17
+
+/*
+ * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
+ * are read as a bit array returned by USB_REQ_GET_STATUS.  (So there
+ * are at most sixteen features of each type.)
+ */
+#define USB_DEVICE_SELF_POWERED		0	/* (read only) */
+#define USB_DEVICE_REMOTE_WAKEUP	1	/* dev may initiate wakeup */
+#define USB_DEVICE_TEST_MODE		2	/* (wired high speed only) */
+#define USB_DEVICE_BATTERY		2	/* (wireless) */
+#define USB_DEVICE_B_HNP_ENABLE		3	/* (otg) dev may initiate HNP */
+#define USB_DEVICE_WUSB_DEVICE		3	/* (wireless)*/
+#define USB_DEVICE_A_HNP_SUPPORT	4	/* (otg) RH port supports HNP */
+#define USB_DEVICE_A_ALT_HNP_SUPPORT	5	/* (otg) other RH port does */
+#define USB_DEVICE_DEBUG_MODE		6	/* (special devices only) */
+
+#define USB_ENDPOINT_HALT		0	/* IN/OUT will STALL */
+
+
+/**
+ * struct usb_ctrlrequest - SETUP data for a USB device control request
+ * @bRequestType: matches the USB bmRequestType field
+ * @bRequest: matches the USB bRequest field
+ * @wValue: matches the USB wValue field (le16 byte order)
+ * @wIndex: matches the USB wIndex field (le16 byte order)
+ * @wLength: matches the USB wLength field (le16 byte order)
+ *
+ * This structure is used to send control requests to a USB device.  It matches
+ * the different fields of the USB 2.0 Spec section 9.3, table 9-2.  See the
+ * USB spec for a fuller description of the different fields, and what they are
+ * used for.
+ *
+ * Note that the driver for any interface can issue control requests.
+ * For most devices, interfaces don't coordinate with each other, so
+ * such requests may be made at any time.
+ */
+struct usb_ctrlrequest {
+	u_int8_t bRequestType;
+	u_int8_t bRequest;
+	u_int16_t wValue;
+	u_int16_t wIndex;
+	u_int16_t wLength;
+} __attribute__ ((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
+ * (rarely) accepted by SET_DESCRIPTOR.
+ *
+ * Note that all multi-byte values here are encoded in little endian
+ * byte order "on the wire".  But when exposed through Linux-USB APIs,
+ * they've been converted to cpu byte order.
+ */
+
+/*
+ * Descriptor types ... USB 2.0 spec table 9.5
+ */
+#define USB_DT_DEVICE			0x01
+#define USB_DT_CONFIG			0x02
+#define USB_DT_STRING			0x03
+#define USB_DT_INTERFACE		0x04
+#define USB_DT_ENDPOINT			0x05
+#define USB_DT_DEVICE_QUALIFIER		0x06
+#define USB_DT_OTHER_SPEED_CONFIG	0x07
+#define USB_DT_INTERFACE_POWER		0x08
+/* these are from a minor usb 2.0 revision (ECN) */
+#define USB_DT_OTG			0x09
+#define USB_DT_DEBUG			0x0a
+#define USB_DT_INTERFACE_ASSOCIATION	0x0b
+/* these are from the Wireless USB spec */
+#define USB_DT_SECURITY			0x0c
+#define USB_DT_KEY			0x0d
+#define USB_DT_ENCRYPTION_TYPE		0x0e
+#define USB_DT_BOS			0x0f
+#define USB_DT_DEVICE_CAPABILITY	0x10
+#define USB_DT_WIRELESS_ENDPOINT_COMP	0x11
+
+/* conventional codes for class-specific descriptors */
+#define USB_DT_CS_DEVICE		0x21
+#define USB_DT_CS_CONFIG		0x22
+#define USB_DT_CS_STRING		0x23
+#define USB_DT_CS_INTERFACE		0x24
+#define USB_DT_CS_ENDPOINT		0x25
+
+/* All standard descriptors have these 2 fields at the beginning */
+struct usb_descriptor_header {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE: Device descriptor */
+struct usb_device_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t bcdUSB;
+	u_int8_t  bDeviceClass;
+	u_int8_t  bDeviceSubClass;
+	u_int8_t  bDeviceProtocol;
+	u_int8_t  bMaxPacketSize0;
+	u_int16_t idVendor;
+	u_int16_t idProduct;
+	u_int16_t bcdDevice;
+	u_int8_t  iManufacturer;
+	u_int8_t  iProduct;
+	u_int8_t  iSerialNumber;
+	u_int8_t  bNumConfigurations;
+} __attribute__ ((packed));
+
+#define USB_DT_DEVICE_SIZE		18
+
+
+/*
+ * Device and/or Interface Class codes
+ * as found in bDeviceClass or bInterfaceClass
+ * and defined by www.usb.org documents
+ */
+#define USB_CLASS_PER_INTERFACE		0	/* for DeviceClass */
+#define USB_CLASS_AUDIO			1
+#define USB_CLASS_COMM			2
+#define USB_CLASS_HID			3
+#define USB_CLASS_PHYSICAL		5
+#define USB_CLASS_STILL_IMAGE		6
+#define USB_CLASS_PRINTER		7
+#define USB_CLASS_MASS_STORAGE		8
+#define USB_CLASS_HUB			9
+#define USB_CLASS_CDC_DATA		0x0a
+#define USB_CLASS_CSCID			0x0b	/* chip+ smart card */
+#define USB_CLASS_CONTENT_SEC		0x0d	/* content security */
+#define USB_CLASS_VIDEO			0x0e
+#define USB_CLASS_WIRELESS_CONTROLLER	0xe0
+#define USB_CLASS_APP_SPEC		0xfe
+#define USB_CLASS_VENDOR_SPEC		0xff
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_CONFIG: Configuration descriptor information.
+ *
+ * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
+ * descriptor type is different.  Highspeed-capable devices can look
+ * different depending on what speed they're currently running.  Only
+ * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
+ * descriptors.
+ */
+struct usb_config_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t wTotalLength;
+	u_int8_t  bNumInterfaces;
+	u_int8_t  bConfigurationValue;
+	u_int8_t  iConfiguration;
+	u_int8_t  bmAttributes;
+	u_int8_t  bMaxPower;
+} __attribute__ ((packed));
+
+#define USB_DT_CONFIG_SIZE		9
+
+/* from config descriptor bmAttributes */
+#define USB_CONFIG_ATT_ONE		(1 << 7)	/* must be set */
+#define USB_CONFIG_ATT_SELFPOWER	(1 << 6)	/* self powered */
+#define USB_CONFIG_ATT_WAKEUP		(1 << 5)	/* can wakeup */
+#define USB_CONFIG_ATT_BATTERY		(1 << 4)	/* battery powered */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_STRING: String descriptor */
+struct usb_string_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t wData[0];		/* UTF-16LE encoded */
+} __attribute__ ((packed));
+
+/* note that "string" zero is special, it holds language codes that
+ * the device supports, not Unicode characters.
+ */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_INTERFACE: Interface descriptor */
+struct usb_interface_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bInterfaceNumber;
+	u_int8_t  bAlternateSetting;
+	u_int8_t  bNumEndpoints;
+	u_int8_t  bInterfaceClass;
+	u_int8_t  bInterfaceSubClass;
+	u_int8_t  bInterfaceProtocol;
+	u_int8_t  iInterface;
+} __attribute__ ((packed));
+
+#define USB_DT_INTERFACE_SIZE		9
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_ENDPOINT: Endpoint descriptor */
+struct usb_endpoint_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bEndpointAddress;
+	u_int8_t  bmAttributes;
+	u_int16_t wMaxPacketSize;
+	u_int8_t  bInterval;
+} __attribute__ ((packed));
+
+#define USB_DT_ENDPOINT_SIZE		7
+#define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
+
+
+/*
+ * Endpoints
+ */
+#define USB_ENDPOINT_NUMBER_MASK	0x0f	/* in bEndpointAddress */
+#define USB_ENDPOINT_DIR_MASK		0x80
+
+#define USB_ENDPOINT_XFERTYPE_MASK	0x03	/* in bmAttributes */
+#define USB_ENDPOINT_XFER_CONTROL	0
+#define USB_ENDPOINT_XFER_ISOC		1
+#define USB_ENDPOINT_XFER_BULK		2
+#define USB_ENDPOINT_XFER_INT		3
+#define USB_ENDPOINT_MAX_ADJUSTABLE	0x80
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
+struct usb_qualifier_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t bcdUSB;
+	u_int8_t  bDeviceClass;
+	u_int8_t  bDeviceSubClass;
+	u_int8_t  bDeviceProtocol;
+	u_int8_t  bMaxPacketSize0;
+	u_int8_t  bNumConfigurations;
+	u_int8_t  bRESERVED;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_OTG (from OTG 1.0a supplement) */
+struct usb_otg_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bmAttributes;	/* support for HNP, SRP, etc */
+} __attribute__ ((packed));
+
+/* from usb_otg_descriptor.bmAttributes */
+#define USB_OTG_SRP		(1 << 0)
+#define USB_OTG_HNP		(1 << 1)	/* swap host/device roles */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEBUG:  for special highspeed devices, replacing serial console */
+struct usb_debug_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	/* bulk endpoints with 8 byte maxpacket */
+	u_int8_t  bDebugInEndpoint;
+	u_int8_t  bDebugOutEndpoint;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
+struct usb_interface_assoc_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bFirstInterface;
+	u_int8_t  bInterfaceCount;
+	u_int8_t  bFunctionClass;
+	u_int8_t  bFunctionSubClass;
+	u_int8_t  bFunctionProtocol;
+	u_int8_t  iFunction;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_SECURITY:  group of wireless security descriptors, including
+ * encryption types available for setting up a CC/association.
+ */
+struct usb_security_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t wTotalLength;
+	u_int8_t  bNumEncryptionTypes;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_KEY:  used with {GET,SET}_SECURITY_DATA; only public keys
+ * may be retrieved.
+ */
+struct usb_key_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  tTKID[3];
+	u_int8_t  bReserved;
+	u_int8_t  bKeyData[0];
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_ENCRYPTION_TYPE:  bundled in DT_SECURITY groups */
+struct usb_encryption_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bEncryptionType;
+#define	USB_ENC_TYPE_UNSECURE		0
+#define	USB_ENC_TYPE_WIRED		1	/* non-wireless mode */
+#define	USB_ENC_TYPE_CCM_1		2	/* aes128/cbc session */
+#define	USB_ENC_TYPE_RSA_1		3	/* rsa3072/sha1 auth */
+	u_int8_t  bEncryptionValue;		/* use in SET_ENCRYPTION */
+	u_int8_t  bAuthKeyIndex;
+};
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_BOS:  group of wireless capabilities */
+struct usb_bos_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int16_t wTotalLength;
+	u_int8_t  bNumDeviceCaps;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE_CAPABILITY:  grouped with BOS */
+struct usb_dev_cap_header {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+	u_int8_t  bDevCapabilityType;
+};
+
+#define	USB_CAP_TYPE_WIRELESS_USB	1
+
+struct usb_wireless_cap_descriptor {	/* Ultra Wide Band */
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+	u_int8_t  bDevCapabilityType;
+
+	u_int8_t  bmAttributes;
+#define	USB_WIRELESS_P2P_DRD		(1 << 1)
+#define	USB_WIRELESS_BEACON_MASK	(3 << 2)
+#define	USB_WIRELESS_BEACON_SELF	(1 << 2)
+#define	USB_WIRELESS_BEACON_DIRECTED	(2 << 2)
+#define	USB_WIRELESS_BEACON_NONE	(3 << 2)
+	u_int16_t wPHYRates;	/* bit rates, Mbps */
+#define	USB_WIRELESS_PHY_53		(1 << 0)	/* always set */
+#define	USB_WIRELESS_PHY_80		(1 << 1)
+#define	USB_WIRELESS_PHY_107		(1 << 2)	/* always set */
+#define	USB_WIRELESS_PHY_160		(1 << 3)
+#define	USB_WIRELESS_PHY_200		(1 << 4)	/* always set */
+#define	USB_WIRELESS_PHY_320		(1 << 5)
+#define	USB_WIRELESS_PHY_400		(1 << 6)
+#define	USB_WIRELESS_PHY_480		(1 << 7)
+	u_int8_t  bmTFITXPowerInfo;	/* TFI power levels */
+	u_int8_t  bmFFITXPowerInfo;	/* FFI power levels */
+	u_int16_t bmBandGroup;
+	u_int8_t  bReserved;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_WIRELESS_ENDPOINT_COMP:  companion descriptor associated with
+ * each endpoint descriptor for a wireless device
+ */
+struct usb_wireless_ep_comp_descriptor {
+	u_int8_t  bLength;
+	u_int8_t  bDescriptorType;
+
+	u_int8_t  bMaxBurst;
+	u_int8_t  bMaxSequence;
+	u_int16_t wMaxStreamDelay;
+	u_int16_t wOverTheAirPacketSize;
+	u_int8_t  bOverTheAirInterval;
+	u_int8_t  bmCompAttributes;
+#define USB_ENDPOINT_SWITCH_MASK	0x03	/* in bmCompAttributes */
+#define USB_ENDPOINT_SWITCH_NO		0
+#define USB_ENDPOINT_SWITCH_SWITCH	1
+#define USB_ENDPOINT_SWITCH_SCALE	2
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
+ * host and a device for connection set up, mutual authentication, and
+ * exchanging short lived session keys.  The handshake depends on a CC.
+ */
+struct usb_handshake {
+	u_int8_t bMessageNumber;
+	u_int8_t bStatus;
+	u_int8_t tTKID[3];
+	u_int8_t bReserved;
+	u_int8_t CDID[16];
+	u_int8_t nonce[16];
+	u_int8_t MIC[8];
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
+ * A CC may also be set up using non-wireless secure channels (including
+ * wired USB!), and some devices may support CCs with multiple hosts.
+ */
+struct usb_connection_context {
+	u_int8_t CHID[16];		/* persistent host id */
+	u_int8_t CDID[16];		/* device id (unique w/in host context) */
+	u_int8_t CK[16];		/* connection key */
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* USB 2.0 defines three speeds, here's how Linux identifies them */
+
+enum usb_device_speed {
+	USB_SPEED_UNKNOWN = 0,			/* enumerating */
+	USB_SPEED_LOW, USB_SPEED_FULL,		/* usb 1.1 */
+	USB_SPEED_HIGH,				/* usb 2.0 */
+	USB_SPEED_VARIABLE,			/* wireless (usb 2.5) */
+};
+
+enum usb_device_state {
+	/* NOTATTACHED isn't in the USB spec, and this state acts
+	 * the same as ATTACHED ... but it's clearer this way.
+	 */
+	USB_STATE_NOTATTACHED = 0,
+
+	/* chapter 9 and authentication (wireless) device states */
+	USB_STATE_ATTACHED,
+	USB_STATE_POWERED,			/* wired */
+	USB_STATE_UNAUTHENTICATED,		/* auth */
+	USB_STATE_RECONNECTING,			/* auth */
+	USB_STATE_DEFAULT,			/* limited function */
+	USB_STATE_ADDRESS,
+	USB_STATE_CONFIGURED,			/* most functions */
+
+	USB_STATE_SUSPENDED
+
+	/* NOTE:  there are actually four different SUSPENDED
+	 * states, returning to POWERED, DEFAULT, ADDRESS, or
+	 * CONFIGURED respectively when SOF tokens flow again.
+	 */
+};
+
+#endif	/* __LINUX_USB_CH9_H */
diff --git a/openpicc/include/usb_dfu.h b/openpicc/include/usb_dfu.h
new file mode 100644
index 0000000..5000edc
--- /dev/null
+++ b/openpicc/include/usb_dfu.h
@@ -0,0 +1,81 @@
+#ifndef _USB_DFU_H
+#define _USB_DFU_H
+/* USB Device Firmware Update Implementation for OpenPCD
+ * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
+ *
+ * Protocol definitions for USB DFU
+ *
+ * This ought to be compliant to the USB DFU Spec 1.0 as available from
+ * http://www.usb.org/developers/devclass_docs/usbdfu10.pdf
+ *
+ */
+
+#include <sys/types.h>
+
+#define USB_DT_DFU			0x21
+
+struct usb_dfu_func_descriptor {
+	u_int8_t		bLength;
+	u_int8_t		bDescriptorType;
+	u_int8_t		bmAttributes;
+#define USB_DFU_CAN_DOWNLOAD	(1 << 0)
+#define USB_DFU_CAN_UPLOAD	(1 << 1)
+#define USB_DFU_MANIFEST_TOL	(1 << 2)
+#define USB_DFU_WILL_DETACH	(1 << 3)
+	u_int16_t		wDetachTimeOut;
+	u_int16_t		wTransferSize;
+	u_int16_t		bcdDFUVersion;
+} __attribute__ ((packed));
+
+#define USB_DT_DFU_SIZE			9
+
+#define USB_TYPE_DFU		(USB_TYPE_CLASS|USB_RECIP_INTERFACE)
+
+/* DFU class-specific requests (Section 3, DFU Rev 1.1) */
+#define USB_REQ_DFU_DETACH	0x00
+#define USB_REQ_DFU_DNLOAD	0x01
+#define USB_REQ_DFU_UPLOAD	0x02
+#define USB_REQ_DFU_GETSTATUS	0x03
+#define USB_REQ_DFU_CLRSTATUS	0x04
+#define USB_REQ_DFU_GETSTATE	0x05
+#define USB_REQ_DFU_ABORT	0x06
+
+struct dfu_status {
+	u_int8_t bStatus;
+	u_int8_t bwPollTimeout[3];
+	u_int8_t bState;
+	u_int8_t iString;
+} __attribute__((packed));
+
+#define DFU_STATUS_OK			0x00
+#define DFU_STATUS_errTARGET		0x01
+#define DFU_STATUS_errFILE		0x02
+#define DFU_STATUS_errWRITE		0x03
+#define DFU_STATUS_errERASE		0x04
+#define DFU_STATUS_errCHECK_ERASED	0x05
+#define DFU_STATUS_errPROG		0x06
+#define DFU_STATUS_errVERIFY		0x07
+#define DFU_STATUS_errADDRESS		0x08
+#define DFU_STATUS_errNOTDONE		0x09
+#define DFU_STATUS_errFIRMWARE		0x0a
+#define DFU_STATUS_errVENDOR		0x0b
+#define DFU_STATUS_errUSBR		0x0c
+#define DFU_STATUS_errPOR		0x0d
+#define DFU_STATUS_errUNKNOWN		0x0e
+#define DFU_STATUS_errSTALLEDPKT	0x0f
+
+enum dfu_state {
+	DFU_STATE_appIDLE		= 0,
+	DFU_STATE_appDETACH		= 1,
+	DFU_STATE_dfuIDLE		= 2,
+	DFU_STATE_dfuDNLOAD_SYNC	= 3,
+	DFU_STATE_dfuDNBUSY		= 4,
+	DFU_STATE_dfuDNLOAD_IDLE	= 5,
+	DFU_STATE_dfuMANIFEST_SYNC	= 6,
+	DFU_STATE_dfuMANIFEST		= 7,
+	DFU_STATE_dfuMANIFEST_WAIT_RST	= 8,
+	DFU_STATE_dfuUPLOAD_IDLE	= 9,
+	DFU_STATE_dfuERROR		= 10,
+};
+
+#endif /* _USB_DFU_H */