1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Gerry Hamel, geh@ti.com, Texas Instruments
6 * Based on linux/drivers/usbd/usbd.h
8 * Copyright (c) 2000, 2001, 2002 Lineo
9 * Copyright (c) 2001 Hewlett Packard
12 * Stuart Lynne <sl@lineo.com>,
13 * Tom Rushworth <tbr@lineo.com>,
14 * Bruce Balden <balden@lineo.com>
17 #ifndef __USBDCORE_H__
18 #define __USBDCORE_H__
20 #include "usbdescriptors.h"
23 #define MAX_URBS_QUEUED 5
27 #define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
29 #define usberr(fmt,args...) do{}while(0)
33 #define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
35 #define usbdbg(fmt,args...) do{}while(0)
39 #define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
41 #define usbinfo(fmt,args...) do{}while(0)
45 #define le16_to_cpu(x) (x)
49 #define inb(p) (*(volatile u8*)(p))
53 #define outb(val,p) (*(volatile u8*)(p) = (val))
57 #define inw(p) (*(volatile u16*)(p))
61 #define outw(val,p) (*(volatile u16*)(p) = (val))
65 #define inl(p) (*(volatile u32*)(p))
69 #define outl(val,p) (*(volatile u32*)(p) = (val))
73 #define insw(p,to,len) mmio_insw(p,to,len)
77 #define outsw(p,from,len) mmio_outsw(p,from,len)
81 #define insb(p,to,len) mmio_insb(p,to,len)
85 #define mmio_insw(r,b,l) ({ int __i ; \
88 for (__i = 0; __i < l; __i++) { \
89 *(__b2 + __i) = inw(r); \
95 #define mmio_outsw(r,b,l) ({ int __i; \
98 for (__i = 0; __i < l; __i++) { \
99 outw( *(__b2 + __i), r); \
105 #define mmio_insb(r,b,l) ({ int __i ; \
108 for (__i = 0; __i < l; __i++) { \
109 *(__b2 + __i) = inb(r); \
115 * Structure member address manipulation macros.
116 * These are used by client code (code using the urb_link routines), since
117 * the urb_link structure is embedded in the client data structures.
119 * Note: a macro offsetof equivalent to member_offset is defined in stddef.h
120 * but this is kept here for the sake of portability.
122 * p2surround returns a pointer to the surrounding structure given
123 * type of the surrounding structure, the name memb of the structure
124 * member pointed at by ptr. For example, if you have:
132 * char *cp = &thingy.z;
136 * &thingy == p2surround(struct foo, z, cp)
140 #define _cv_(ptr) ((char*)(void*)(ptr))
141 #define member_offset(type,memb) (_cv_(&(((type*)0)->memb))-(char*)0)
142 #define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb)))
146 struct usb_endpoint_instance
;
147 struct usb_interface_instance
;
148 struct usb_configuration_instance
;
149 struct usb_device_instance
;
150 struct usb_bus_instance
;
153 * Device and/or Interface Class codes
155 #define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
156 #define USB_CLASS_AUDIO 1
157 #define USB_CLASS_COMM 2
158 #define USB_CLASS_HID 3
159 #define USB_CLASS_PHYSICAL 5
160 #define USB_CLASS_PRINTER 7
161 #define USB_CLASS_MASS_STORAGE 8
162 #define USB_CLASS_HUB 9
163 #define USB_CLASS_DATA 10
164 #define USB_CLASS_APP_SPEC 0xfe
165 #define USB_CLASS_VENDOR_SPEC 0xff
170 #define USB_TYPE_STANDARD (0x00 << 5)
171 #define USB_TYPE_CLASS (0x01 << 5)
172 #define USB_TYPE_VENDOR (0x02 << 5)
173 #define USB_TYPE_RESERVED (0x03 << 5)
178 #define USB_RECIP_DEVICE 0x00
179 #define USB_RECIP_INTERFACE 0x01
180 #define USB_RECIP_ENDPOINT 0x02
181 #define USB_RECIP_OTHER 0x03
186 #define USB_DIR_OUT 0
187 #define USB_DIR_IN 0x80
192 #define USB_DT_DEVICE 0x01
193 #define USB_DT_CONFIG 0x02
194 #define USB_DT_STRING 0x03
195 #define USB_DT_INTERFACE 0x04
196 #define USB_DT_ENDPOINT 0x05
198 #define USB_DT_HID (USB_TYPE_CLASS | 0x01)
199 #define USB_DT_REPORT (USB_TYPE_CLASS | 0x02)
200 #define USB_DT_PHYSICAL (USB_TYPE_CLASS | 0x03)
201 #define USB_DT_HUB (USB_TYPE_CLASS | 0x09)
204 * Descriptor sizes per descriptor type
206 #define USB_DT_DEVICE_SIZE 18
207 #define USB_DT_CONFIG_SIZE 9
208 #define USB_DT_INTERFACE_SIZE 9
209 #define USB_DT_ENDPOINT_SIZE 7
210 #define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
211 #define USB_DT_HUB_NONVAR_SIZE 7
212 #define USB_DT_HID_SIZE 9
217 #define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
218 #define USB_ENDPOINT_DIR_MASK 0x80
220 #define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
221 #define USB_ENDPOINT_XFER_CONTROL 0
222 #define USB_ENDPOINT_XFER_ISOC 1
223 #define USB_ENDPOINT_XFER_BULK 2
224 #define USB_ENDPOINT_XFER_INT 3
227 * USB Packet IDs (PIDs)
229 #define USB_PID_UNDEF_0 0xf0
230 #define USB_PID_OUT 0xe1
231 #define USB_PID_ACK 0xd2
232 #define USB_PID_DATA0 0xc3
233 #define USB_PID_PING 0xb4 /* USB 2.0 */
234 #define USB_PID_SOF 0xa5
235 #define USB_PID_NYET 0x96 /* USB 2.0 */
236 #define USB_PID_DATA2 0x87 /* USB 2.0 */
237 #define USB_PID_SPLIT 0x78 /* USB 2.0 */
238 #define USB_PID_IN 0x69
239 #define USB_PID_NAK 0x5a
240 #define USB_PID_DATA1 0x4b
241 #define USB_PID_PREAMBLE 0x3c /* Token mode */
242 #define USB_PID_ERR 0x3c /* USB 2.0: handshake mode */
243 #define USB_PID_SETUP 0x2d
244 #define USB_PID_STALL 0x1e
245 #define USB_PID_MDATA 0x0f /* USB 2.0 */
250 #define USB_REQ_GET_STATUS 0x00
251 #define USB_REQ_CLEAR_FEATURE 0x01
252 #define USB_REQ_SET_FEATURE 0x03
253 #define USB_REQ_SET_ADDRESS 0x05
254 #define USB_REQ_GET_DESCRIPTOR 0x06
255 #define USB_REQ_SET_DESCRIPTOR 0x07
256 #define USB_REQ_GET_CONFIGURATION 0x08
257 #define USB_REQ_SET_CONFIGURATION 0x09
258 #define USB_REQ_GET_INTERFACE 0x0A
259 #define USB_REQ_SET_INTERFACE 0x0B
260 #define USB_REQ_SYNCH_FRAME 0x0C
265 #define USB_REQ_GET_REPORT 0x01
266 #define USB_REQ_GET_IDLE 0x02
267 #define USB_REQ_GET_PROTOCOL 0x03
268 #define USB_REQ_SET_REPORT 0x09
269 #define USB_REQ_SET_IDLE 0x0A
270 #define USB_REQ_SET_PROTOCOL 0x0B
274 * USB Spec Release number
277 #define USB_BCD_VERSION 0x0110
281 * Device Requests (c.f Table 9-2)
284 #define USB_REQ_DIRECTION_MASK 0x80
285 #define USB_REQ_TYPE_MASK 0x60
286 #define USB_REQ_RECIPIENT_MASK 0x1f
288 #define USB_REQ_DEVICE2HOST 0x80
289 #define USB_REQ_HOST2DEVICE 0x00
291 #define USB_REQ_TYPE_STANDARD 0x00
292 #define USB_REQ_TYPE_CLASS 0x20
293 #define USB_REQ_TYPE_VENDOR 0x40
295 #define USB_REQ_RECIPIENT_DEVICE 0x00
296 #define USB_REQ_RECIPIENT_INTERFACE 0x01
297 #define USB_REQ_RECIPIENT_ENDPOINT 0x02
298 #define USB_REQ_RECIPIENT_OTHER 0x03
304 #define USB_STATUS_SELFPOWERED 0x01
305 #define USB_STATUS_REMOTEWAKEUP 0x02
307 #define USB_STATUS_HALT 0x01
313 #define USB_DESCRIPTOR_TYPE_DEVICE 0x01
314 #define USB_DESCRIPTOR_TYPE_CONFIGURATION 0x02
315 #define USB_DESCRIPTOR_TYPE_STRING 0x03
316 #define USB_DESCRIPTOR_TYPE_INTERFACE 0x04
317 #define USB_DESCRIPTOR_TYPE_ENDPOINT 0x05
318 #define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER 0x06
319 #define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION 0x07
320 #define USB_DESCRIPTOR_TYPE_INTERFACE_POWER 0x08
321 #define USB_DESCRIPTOR_TYPE_HID 0x21
322 #define USB_DESCRIPTOR_TYPE_REPORT 0x22
325 * standard feature selectors
327 #define USB_ENDPOINT_HALT 0x00
328 #define USB_DEVICE_REMOTE_WAKEUP 0x01
329 #define USB_TEST_MODE 0x02
336 struct usb_device_request
{
342 } __attribute__ ((packed
));
348 typedef enum urb_send_status
{
358 * Device State (c.f USB Spec 2.0 Figure 9-1)
360 * What state the usb device is in.
362 * Note the state does not change if the device is suspended, we simply set a
363 * flag to show that it is suspended.
366 typedef enum usb_device_state
{
367 STATE_INIT
, /* just initialized */
368 STATE_CREATED
, /* just created */
369 STATE_ATTACHED
, /* we are attached */
370 STATE_POWERED
, /* we have seen power indication (electrical bus signal) */
371 STATE_DEFAULT
, /* we been reset */
372 STATE_ADDRESSED
, /* we have been addressed (in default configuration) */
373 STATE_CONFIGURED
, /* we have seen a set configuration device command */
374 STATE_UNKNOWN
, /* destroyed */
375 } usb_device_state_t
;
382 typedef enum usb_device_status
{
383 USBD_OPENING
, /* we are currently opening */
384 USBD_OK
, /* ok to use */
385 USBD_SUSPENDED
, /* we are currently suspended */
386 USBD_CLOSING
, /* we are currently closing */
387 } usb_device_status_t
;
392 * These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1).
394 * There are additional events defined to handle some extra actions we need
398 typedef enum usb_device_event
{
400 DEVICE_UNKNOWN
, /* bi - unknown event */
401 DEVICE_INIT
, /* bi - initialize */
402 DEVICE_CREATE
, /* bi - */
403 DEVICE_HUB_CONFIGURED
, /* bi - bus has been plugged int */
404 DEVICE_RESET
, /* bi - hub has powered our port */
406 DEVICE_ADDRESS_ASSIGNED
, /* ep0 - set address setup received */
407 DEVICE_CONFIGURED
, /* ep0 - set configure setup received */
408 DEVICE_SET_INTERFACE
, /* ep0 - set interface setup received */
410 DEVICE_SET_FEATURE
, /* ep0 - set feature setup received */
411 DEVICE_CLEAR_FEATURE
, /* ep0 - clear feature setup received */
413 DEVICE_DE_CONFIGURED
, /* ep0 - set configure setup received for ?? */
415 DEVICE_BUS_INACTIVE
, /* bi - bus in inactive (no SOF packets) */
416 DEVICE_BUS_ACTIVITY
, /* bi - bus is active again */
418 DEVICE_POWER_INTERRUPTION
, /* bi - hub has depowered our port */
419 DEVICE_HUB_RESET
, /* bi - bus has been unplugged */
420 DEVICE_DESTROY
, /* bi - device instance should be destroyed */
422 DEVICE_HOTPLUG
, /* bi - a hotplug event has occurred */
424 DEVICE_FUNCTION_PRIVATE
, /* function - private */
426 } usb_device_event_t
;
429 typedef struct urb_link
{
430 struct urb_link
*next
;
431 struct urb_link
*prev
;
434 /* USB Data structure - for passing data around.
436 * This is used for both sending and receiving data.
438 * The callback function is used to let the function driver know when
439 * transmitted data has been sent.
441 * The callback function is set by the alloc_recv function when an urb is
442 * allocated for receiving data for an endpoint and used to call the
443 * function driver to inform it that data has arrived.
446 /* in linux we'd malloc this, but in u-boot we prefer static data */
447 #define URB_BUF_SIZE 512
451 struct usb_endpoint_instance
*endpoint
;
452 struct usb_device_instance
*device
;
454 struct usb_device_request device_request
; /* contents of received SETUP packet */
456 struct urb_link link
; /* embedded struct for circular doubly linked list of urbs */
459 unsigned int buffer_length
;
460 unsigned int actual_length
;
462 urb_send_status_t status
;
465 u16 buffer_data
[URB_BUF_SIZE
]; /* data received (OUT) or being sent (IN) */
468 /* Endpoint configuration
470 * Per endpoint configuration data. Used to track which function driver owns
474 struct usb_endpoint_instance
{
475 int endpoint_address
; /* logical endpoint address */
478 int status
; /* halted */
479 int state
; /* available for use by bus interface driver */
482 struct urb_link rcv
; /* received urbs */
483 struct urb_link rdy
; /* empty urbs ready to receive */
484 struct urb
*rcv_urb
; /* active urb */
485 int rcv_attributes
; /* copy of bmAttributes from endpoint descriptor */
486 int rcv_packetSize
; /* maximum packet size from endpoint descriptor */
487 int rcv_transferSize
; /* maximum transfer size from function driver */
491 struct urb_link tx
; /* urbs ready to transmit */
492 struct urb_link done
; /* transmitted urbs */
493 struct urb
*tx_urb
; /* active urb */
494 int tx_attributes
; /* copy of bmAttributes from endpoint descriptor */
495 int tx_packetSize
; /* maximum packet size from endpoint descriptor */
496 int tx_transferSize
; /* maximum transfer size from function driver */
499 int sent
; /* data already sent */
500 int last
; /* data sent in last packet XXX do we need this */
503 struct usb_alternate_instance
{
504 struct usb_interface_descriptor
*interface_descriptor
;
507 int *endpoint_transfersize_array
;
508 struct usb_endpoint_descriptor
**endpoints_descriptor_array
;
511 struct usb_interface_instance
{
513 struct usb_alternate_instance
*alternates_instance_array
;
516 struct usb_configuration_instance
{
518 struct usb_configuration_descriptor
*configuration_descriptor
;
519 struct usb_interface_instance
*interface_instance_array
;
523 /* USB Device Instance
525 * For each physical bus interface we create a logical device structure. This
526 * tracks all of the required state to track the USB HOST's view of the device.
528 * Keep track of the device configuration for a real physical bus interface,
529 * this includes the bus interface, multiple function drivers, the current
530 * configuration and the current state.
533 * the specific bus interface driver
534 * the default endpoint 0 driver
535 * the configured function driver
541 struct usb_device_instance
{
545 struct usb_device_descriptor
*device_descriptor
; /* per device descriptor */
547 void (*event
) (struct usb_device_instance
*device
, usb_device_event_t event
, int data
);
549 /* Do cdc device specific control requests */
550 int (*cdc_recv_setup
)(struct usb_device_request
*request
, struct urb
*urb
);
553 struct usb_bus_instance
*bus
; /* which bus interface driver */
555 /* configuration descriptors */
557 struct usb_configuration_instance
*configuration_instance_array
;
560 usb_device_state_t device_state
; /* current USB Device state */
561 usb_device_state_t device_previous_state
; /* current USB Device state */
563 u8 address
; /* current address (zero is default) */
564 u8 configuration
; /* current show configuration (zero is default) */
565 u8 interface
; /* current interface (zero is default) */
566 u8 alternate
; /* alternate flag */
568 usb_device_status_t status
; /* device status */
570 int urbs_queued
; /* number of submitted urbs */
572 /* Shouldn't need to make this atomic, all we need is a change indicator */
573 unsigned long usbd_rxtx_timestamp
;
574 unsigned long usbd_last_rxtx_timestamp
;
578 /* Bus Interface configuration structure
580 * This is allocated for each configured instance of a bus interface driver.
582 * The privdata pointer may be used by the bus interface driver to store private
583 * per instance state information.
585 struct usb_bus_instance
{
587 struct usb_device_instance
*device
;
588 struct usb_endpoint_instance
*endpoint_array
; /* array of available configured endpoints */
590 int max_endpoints
; /* maximimum number of rx enpoints */
591 unsigned char maxpacketsize
;
593 unsigned int serial_number
;
594 char *serial_number_str
;
595 void *privdata
; /* private data for the bus interface */
599 void urb_link_init (urb_link
* ul
);
600 void urb_detach (struct urb
*urb
);
601 urb_link
*first_urb_link (urb_link
* hd
);
602 struct urb
*first_urb (urb_link
* hd
);
603 struct urb
*first_urb_detached (urb_link
* hd
);
604 void urb_append (urb_link
* hd
, struct urb
*urb
);
606 struct urb
*usbd_alloc_urb (struct usb_device_instance
*device
, struct usb_endpoint_instance
*endpoint
);
607 void usbd_dealloc_urb (struct urb
*urb
);
610 * usbd_device_event is used by bus interface drivers to tell the higher layers that
611 * certain events have taken place.
613 void usbd_device_event_irq (struct usb_device_instance
*conf
, usb_device_event_t
, int);
614 void usbd_device_event (struct usb_device_instance
*conf
, usb_device_event_t
, int);
618 * Various ways of finding descriptors based on the current device and any
619 * possible configuration / interface / endpoint for it.
621 struct usb_configuration_descriptor
*usbd_device_configuration_descriptor (struct usb_device_instance
*, int, int);
622 struct usb_function_instance
*usbd_device_function_instance (struct usb_device_instance
*, unsigned int);
623 struct usb_interface_instance
*usbd_device_interface_instance (struct usb_device_instance
*, int, int, int);
624 struct usb_alternate_instance
*usbd_device_alternate_instance (struct usb_device_instance
*, int, int, int, int);
625 struct usb_interface_descriptor
*usbd_device_interface_descriptor (struct usb_device_instance
*, int, int, int, int);
626 struct usb_endpoint_descriptor
*usbd_device_endpoint_descriptor_index (struct usb_device_instance
*, int, int, int, int, int);
627 struct usb_class_descriptor
*usbd_device_class_descriptor_index (struct usb_device_instance
*, int, int, int, int, int);
628 struct usb_class_report_descriptor
*usbd_device_class_report_descriptor_index( struct usb_device_instance
*, int , int , int , int , int );
629 struct usb_endpoint_descriptor
*usbd_device_endpoint_descriptor (struct usb_device_instance
*, int, int, int, int, int);
630 int usbd_device_endpoint_transfersize (struct usb_device_instance
*, int, int, int, int, int);
631 struct usb_string_descriptor
*usbd_get_string (u8
);
632 struct usb_device_descriptor
*usbd_device_device_descriptor(struct
633 usb_device_instance
*, int);
635 int usbd_endpoint_halted (struct usb_device_instance
*device
, int endpoint
);
636 void usbd_rcv_complete(struct usb_endpoint_instance
*endpoint
, int len
, int urb_bad
);
637 void usbd_tx_complete (struct usb_endpoint_instance
*endpoint
);
639 /* These are macros used in debugging */
641 static inline void print_urb(struct urb
*u
)
643 serial_printf("urb %p\n", (u
));
644 serial_printf("\tendpoint %p\n", u
->endpoint
);
645 serial_printf("\tdevice %p\n", u
->device
);
646 serial_printf("\tbuffer %p\n", u
->buffer
);
647 serial_printf("\tbuffer_length %d\n", u
->buffer_length
);
648 serial_printf("\tactual_length %d\n", u
->actual_length
);
649 serial_printf("\tstatus %d\n", u
->status
);
650 serial_printf("\tdata %d\n", u
->data
);
653 static inline void print_usb_device_request(struct usb_device_request
*r
)
655 serial_printf("usb request\n");
656 serial_printf("\tbmRequestType 0x%2.2x\n", r
->bmRequestType
);
657 if ((r
->bmRequestType
& USB_REQ_DIRECTION_MASK
) == 0)
658 serial_printf("\t\tDirection : To device\n");
660 serial_printf("\t\tDirection : To host\n");
661 if ((r
->bmRequestType
& USB_TYPE_STANDARD
) == USB_TYPE_STANDARD
)
662 serial_printf("\t\tType : Standard\n");
663 if ((r
->bmRequestType
& USB_TYPE_CLASS
) == USB_TYPE_CLASS
)
664 serial_printf("\t\tType : Standard\n");
665 if ((r
->bmRequestType
& USB_TYPE_VENDOR
) == USB_TYPE_VENDOR
)
666 serial_printf("\t\tType : Standard\n");
667 if ((r
->bmRequestType
& USB_TYPE_RESERVED
) == USB_TYPE_RESERVED
)
668 serial_printf("\t\tType : Standard\n");
669 if ((r
->bmRequestType
& USB_REQ_RECIPIENT_MASK
) ==
670 USB_REQ_RECIPIENT_DEVICE
)
671 serial_printf("\t\tRecipient : Device\n");
672 if ((r
->bmRequestType
& USB_REQ_RECIPIENT_MASK
) ==
673 USB_REQ_RECIPIENT_INTERFACE
)
674 serial_printf("\t\tRecipient : Interface\n");
675 if ((r
->bmRequestType
& USB_REQ_RECIPIENT_MASK
) ==
676 USB_REQ_RECIPIENT_ENDPOINT
)
677 serial_printf("\t\tRecipient : Endpoint\n");
678 if ((r
->bmRequestType
& USB_REQ_RECIPIENT_MASK
) ==
679 USB_REQ_RECIPIENT_OTHER
)
680 serial_printf("\t\tRecipient : Other\n");
681 serial_printf("\tbRequest 0x%2.2x\n", r
->bRequest
);
682 if (r
->bRequest
== USB_REQ_GET_STATUS
)
683 serial_printf("\t\tGET_STATUS\n");
684 else if (r
->bRequest
== USB_REQ_SET_ADDRESS
)
685 serial_printf("\t\tSET_ADDRESS\n");
686 else if (r
->bRequest
== USB_REQ_SET_FEATURE
)
687 serial_printf("\t\tSET_FEATURE\n");
688 else if (r
->bRequest
== USB_REQ_GET_DESCRIPTOR
)
689 serial_printf("\t\tGET_DESCRIPTOR\n");
690 else if (r
->bRequest
== USB_REQ_SET_CONFIGURATION
)
691 serial_printf("\t\tSET_CONFIGURATION\n");
692 else if (r
->bRequest
== USB_REQ_SET_INTERFACE
)
693 serial_printf("\t\tUSB_REQ_SET_INTERFACE\n");
695 serial_printf("\tUNKNOWN %d\n", r
->bRequest
);
696 serial_printf("\twValue 0x%4.4x\n", r
->wValue
);
697 if (r
->bRequest
== USB_REQ_GET_DESCRIPTOR
) {
698 switch (r
->wValue
>> 8) {
699 case USB_DESCRIPTOR_TYPE_DEVICE
:
700 serial_printf("\tDEVICE\n");
702 case USB_DESCRIPTOR_TYPE_CONFIGURATION
:
703 serial_printf("\tCONFIGURATION\n");
705 case USB_DESCRIPTOR_TYPE_STRING
:
706 serial_printf("\tSTRING\n");
708 case USB_DESCRIPTOR_TYPE_INTERFACE
:
709 serial_printf("\tINTERFACE\n");
711 case USB_DESCRIPTOR_TYPE_ENDPOINT
:
712 serial_printf("\tENDPOINT\n");
714 case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER
:
715 serial_printf("\tDEVICE_QUALIFIER\n");
717 case USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION
:
718 serial_printf("\tOTHER_SPEED_CONFIGURATION\n");
720 case USB_DESCRIPTOR_TYPE_INTERFACE_POWER
:
721 serial_printf("\tINTERFACE_POWER\n");
723 case USB_DESCRIPTOR_TYPE_HID
:
724 serial_printf("\tHID\n");
726 case USB_DESCRIPTOR_TYPE_REPORT
:
727 serial_printf("\tREPORT\n");
730 serial_printf("\tUNKNOWN TYPE\n");
734 serial_printf("\twIndex 0x%4.4x\n", r
->wIndex
);
735 serial_printf("\twLength 0x%4.4x\n", r
->wLength
);
740 #define print_usb_device_request(r)