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u-boot/include/usbdevice.h
Pali Rohár f2fa499883 usb: gadget: Do not export usbd_device_* arrays 
Each array is used only in one file (core.c or ep0.c). Move their content
to correct file, mark them as static and do not export out of current file.

This change allows to decrease size of u-boot.bin as more of those strings
are not used.

Signed-off-by: Pali Rohár <pali@kernel.org>
2021-01-31 14:08:56 +01:00

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2003
* Gerry Hamel, geh@ti.com, Texas Instruments
*
* Based on linux/drivers/usbd/usbd.h
*
* Copyright (c) 2000, 2001, 2002 Lineo
* Copyright (c) 2001 Hewlett Packard
*
* By:
* Stuart Lynne <sl@lineo.com>,
* Tom Rushworth <tbr@lineo.com>,
* Bruce Balden <balden@lineo.com>
*/
#ifndef __USBDCORE_H__
#define __USBDCORE_H__
#include <common.h>
#include "usbdescriptors.h"
#define MAX_URBS_QUEUED 5
#if 1
#define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
#else
#define usberr(fmt,args...) do{}while(0)
#endif
#if 0
#define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
#else
#define usbdbg(fmt,args...) do{}while(0)
#endif
#if 0
#define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
#else
#define usbinfo(fmt,args...) do{}while(0)
#endif
#ifndef le16_to_cpu
#define le16_to_cpu(x) (x)
#endif
#ifndef inb
#define inb(p) (*(volatile u8*)(p))
#endif
#ifndef outb
#define outb(val,p) (*(volatile u8*)(p) = (val))
#endif
#ifndef inw
#define inw(p) (*(volatile u16*)(p))
#endif
#ifndef outw
#define outw(val,p) (*(volatile u16*)(p) = (val))
#endif
#ifndef inl
#define inl(p) (*(volatile u32*)(p))
#endif
#ifndef outl
#define outl(val,p) (*(volatile u32*)(p) = (val))
#endif
#ifndef insw
#define insw(p,to,len) mmio_insw(p,to,len)
#endif
#ifndef outsw
#define outsw(p,from,len) mmio_outsw(p,from,len)
#endif
#ifndef insb
#define insb(p,to,len) mmio_insb(p,to,len)
#endif
#ifndef mmio_insw
#define mmio_insw(r,b,l) ({ int __i ; \
u16 *__b2; \
__b2 = (u16 *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = inw(r); \
}; \
})
#endif
#ifndef mmio_outsw
#define mmio_outsw(r,b,l) ({ int __i; \
u16 *__b2; \
__b2 = (u16 *) b; \
for (__i = 0; __i < l; __i++) { \
outw( *(__b2 + __i), r); \
} \
})
#endif
#ifndef mmio_insb
#define mmio_insb(r,b,l) ({ int __i ; \
u8 *__b2; \
__b2 = (u8 *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = inb(r); \
}; \
})
#endif
/*
* Structure member address manipulation macros.
* These are used by client code (code using the urb_link routines), since
* the urb_link structure is embedded in the client data structures.
*
* Note: a macro offsetof equivalent to member_offset is defined in stddef.h
* but this is kept here for the sake of portability.
*
* p2surround returns a pointer to the surrounding structure given
* type of the surrounding structure, the name memb of the structure
* member pointed at by ptr. For example, if you have:
*
* struct foo {
* int x;
* float y;
* char z;
* } thingy;
*
* char *cp = &thingy.z;
*
* then
*
* &thingy == p2surround(struct foo, z, cp)
*
* Clear?
*/
#define _cv_(ptr) ((char*)(void*)(ptr))
#define member_offset(type,memb) (_cv_(&(((type*)0)->memb))-(char*)0)
#define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb)))
struct urb;
struct usb_endpoint_instance;
struct usb_interface_instance;
struct usb_configuration_instance;
struct usb_device_instance;
struct usb_bus_instance;
/*
* Device and/or Interface Class codes
*/
#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_PRINTER 7
#define USB_CLASS_MASS_STORAGE 8
#define USB_CLASS_HUB 9
#define USB_CLASS_DATA 10
#define USB_CLASS_APP_SPEC 0xfe
#define USB_CLASS_VENDOR_SPEC 0xff
/*
* USB types
*/
#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
*/
#define USB_RECIP_DEVICE 0x00
#define USB_RECIP_INTERFACE 0x01
#define USB_RECIP_ENDPOINT 0x02
#define USB_RECIP_OTHER 0x03
/*
* USB directions
*/
#define USB_DIR_OUT 0
#define USB_DIR_IN 0x80
/*
* Descriptor types
*/
#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
#if defined(CONFIG_USBD_HS)
#define USB_DT_QUAL 0x06
#endif
#define USB_DT_HID (USB_TYPE_CLASS | 0x01)
#define USB_DT_REPORT (USB_TYPE_CLASS | 0x02)
#define USB_DT_PHYSICAL (USB_TYPE_CLASS | 0x03)
#define USB_DT_HUB (USB_TYPE_CLASS | 0x09)
/*
* Descriptor sizes per descriptor type
*/
#define USB_DT_DEVICE_SIZE 18
#define USB_DT_CONFIG_SIZE 9
#define USB_DT_INTERFACE_SIZE 9
#define USB_DT_ENDPOINT_SIZE 7
#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
#define USB_DT_HUB_NONVAR_SIZE 7
#define USB_DT_HID_SIZE 9
/*
* 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
/*
* USB Packet IDs (PIDs)
*/
#define USB_PID_UNDEF_0 0xf0
#define USB_PID_OUT 0xe1
#define USB_PID_ACK 0xd2
#define USB_PID_DATA0 0xc3
#define USB_PID_PING 0xb4 /* USB 2.0 */
#define USB_PID_SOF 0xa5
#define USB_PID_NYET 0x96 /* USB 2.0 */
#define USB_PID_DATA2 0x87 /* USB 2.0 */
#define USB_PID_SPLIT 0x78 /* USB 2.0 */
#define USB_PID_IN 0x69
#define USB_PID_NAK 0x5a
#define USB_PID_DATA1 0x4b
#define USB_PID_PREAMBLE 0x3c /* Token mode */
#define USB_PID_ERR 0x3c /* USB 2.0: handshake mode */
#define USB_PID_SETUP 0x2d
#define USB_PID_STALL 0x1e
#define USB_PID_MDATA 0x0f /* USB 2.0 */
/*
* Standard requests
*/
#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
/*
* HID requests
*/
#define USB_REQ_GET_REPORT 0x01
#define USB_REQ_GET_IDLE 0x02
#define USB_REQ_GET_PROTOCOL 0x03
#define USB_REQ_SET_REPORT 0x09
#define USB_REQ_SET_IDLE 0x0A
#define USB_REQ_SET_PROTOCOL 0x0B
/*
* USB Spec Release number
*/
#if defined(CONFIG_USBD_HS)
#define USB_BCD_VERSION 0x0200
#else
#define USB_BCD_VERSION 0x0110
#endif
/*
* Device Requests (c.f Table 9-2)
*/
#define USB_REQ_DIRECTION_MASK 0x80
#define USB_REQ_TYPE_MASK 0x60
#define USB_REQ_RECIPIENT_MASK 0x1f
#define USB_REQ_DEVICE2HOST 0x80
#define USB_REQ_HOST2DEVICE 0x00
#define USB_REQ_TYPE_STANDARD 0x00
#define USB_REQ_TYPE_CLASS 0x20
#define USB_REQ_TYPE_VENDOR 0x40
#define USB_REQ_RECIPIENT_DEVICE 0x00
#define USB_REQ_RECIPIENT_INTERFACE 0x01
#define USB_REQ_RECIPIENT_ENDPOINT 0x02
#define USB_REQ_RECIPIENT_OTHER 0x03
/*
* get status bits
*/
#define USB_STATUS_SELFPOWERED 0x01
#define USB_STATUS_REMOTEWAKEUP 0x02
#define USB_STATUS_HALT 0x01
/*
* descriptor types
*/
#define USB_DESCRIPTOR_TYPE_DEVICE 0x01
#define USB_DESCRIPTOR_TYPE_CONFIGURATION 0x02
#define USB_DESCRIPTOR_TYPE_STRING 0x03
#define USB_DESCRIPTOR_TYPE_INTERFACE 0x04
#define USB_DESCRIPTOR_TYPE_ENDPOINT 0x05
#define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER 0x06
#define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION 0x07
#define USB_DESCRIPTOR_TYPE_INTERFACE_POWER 0x08
#define USB_DESCRIPTOR_TYPE_HID 0x21
#define USB_DESCRIPTOR_TYPE_REPORT 0x22
/*
* standard feature selectors
*/
#define USB_ENDPOINT_HALT 0x00
#define USB_DEVICE_REMOTE_WAKEUP 0x01
#define USB_TEST_MODE 0x02
/* USB Requests
*
*/
struct usb_device_request {
u8 bmRequestType;
u8 bRequest;
u16 wValue;
u16 wIndex;
u16 wLength;
} __attribute__ ((packed));
/* USB Status
*
*/
typedef enum urb_send_status {
SEND_IN_PROGRESS,
SEND_FINISHED_OK,
SEND_FINISHED_ERROR,
RECV_READY,
RECV_OK,
RECV_ERROR
} urb_send_status_t;
/*
* Device State (c.f USB Spec 2.0 Figure 9-1)
*
* What state the usb device is in.
*
* Note the state does not change if the device is suspended, we simply set a
* flag to show that it is suspended.
*
*/
typedef enum usb_device_state {
STATE_INIT, /* just initialized */
STATE_CREATED, /* just created */
STATE_ATTACHED, /* we are attached */
STATE_POWERED, /* we have seen power indication (electrical bus signal) */
STATE_DEFAULT, /* we been reset */
STATE_ADDRESSED, /* we have been addressed (in default configuration) */
STATE_CONFIGURED, /* we have seen a set configuration device command */
STATE_UNKNOWN, /* destroyed */
} usb_device_state_t;
/*
* Device status
*
* Overall state
*/
typedef enum usb_device_status {
USBD_OPENING, /* we are currently opening */
USBD_OK, /* ok to use */
USBD_SUSPENDED, /* we are currently suspended */
USBD_CLOSING, /* we are currently closing */
} usb_device_status_t;
/*
* Device Events
*
* These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1).
*
* There are additional events defined to handle some extra actions we need
* to have handled.
*
*/
typedef enum usb_device_event {
DEVICE_UNKNOWN, /* bi - unknown event */
DEVICE_INIT, /* bi - initialize */
DEVICE_CREATE, /* bi - */
DEVICE_HUB_CONFIGURED, /* bi - bus has been plugged int */
DEVICE_RESET, /* bi - hub has powered our port */
DEVICE_ADDRESS_ASSIGNED, /* ep0 - set address setup received */
DEVICE_CONFIGURED, /* ep0 - set configure setup received */
DEVICE_SET_INTERFACE, /* ep0 - set interface setup received */
DEVICE_SET_FEATURE, /* ep0 - set feature setup received */
DEVICE_CLEAR_FEATURE, /* ep0 - clear feature setup received */
DEVICE_DE_CONFIGURED, /* ep0 - set configure setup received for ?? */
DEVICE_BUS_INACTIVE, /* bi - bus in inactive (no SOF packets) */
DEVICE_BUS_ACTIVITY, /* bi - bus is active again */
DEVICE_POWER_INTERRUPTION, /* bi - hub has depowered our port */
DEVICE_HUB_RESET, /* bi - bus has been unplugged */
DEVICE_DESTROY, /* bi - device instance should be destroyed */
DEVICE_HOTPLUG, /* bi - a hotplug event has occurred */
DEVICE_FUNCTION_PRIVATE, /* function - private */
} usb_device_event_t;
typedef struct urb_link {
struct urb_link *next;
struct urb_link *prev;
} urb_link;
/* USB Data structure - for passing data around.
*
* This is used for both sending and receiving data.
*
* The callback function is used to let the function driver know when
* transmitted data has been sent.
*
* The callback function is set by the alloc_recv function when an urb is
* allocated for receiving data for an endpoint and used to call the
* function driver to inform it that data has arrived.
*/
/* in linux we'd malloc this, but in u-boot we prefer static data */
#define URB_BUF_SIZE 512
struct urb {
struct usb_endpoint_instance *endpoint;
struct usb_device_instance *device;
struct usb_device_request device_request; /* contents of received SETUP packet */
struct urb_link link; /* embedded struct for circular doubly linked list of urbs */
u8* buffer;
unsigned int buffer_length;
unsigned int actual_length;
urb_send_status_t status;
int data;
u16 buffer_data[URB_BUF_SIZE]; /* data received (OUT) or being sent (IN) */
};
/* Endpoint configuration
*
* Per endpoint configuration data. Used to track which function driver owns
* an endpoint.
*
*/
struct usb_endpoint_instance {
int endpoint_address; /* logical endpoint address */
/* control */
int status; /* halted */
int state; /* available for use by bus interface driver */
/* receive side */
struct urb_link rcv; /* received urbs */
struct urb_link rdy; /* empty urbs ready to receive */
struct urb *rcv_urb; /* active urb */
int rcv_attributes; /* copy of bmAttributes from endpoint descriptor */
int rcv_packetSize; /* maximum packet size from endpoint descriptor */
int rcv_transferSize; /* maximum transfer size from function driver */
int rcv_queue;
/* transmit side */
struct urb_link tx; /* urbs ready to transmit */
struct urb_link done; /* transmitted urbs */
struct urb *tx_urb; /* active urb */
int tx_attributes; /* copy of bmAttributes from endpoint descriptor */
int tx_packetSize; /* maximum packet size from endpoint descriptor */
int tx_transferSize; /* maximum transfer size from function driver */
int tx_queue;
int sent; /* data already sent */
int last; /* data sent in last packet XXX do we need this */
};
struct usb_alternate_instance {
struct usb_interface_descriptor *interface_descriptor;
int endpoints;
int *endpoint_transfersize_array;
struct usb_endpoint_descriptor **endpoints_descriptor_array;
};
struct usb_interface_instance {
int alternates;
struct usb_alternate_instance *alternates_instance_array;
};
struct usb_configuration_instance {
int interfaces;
struct usb_configuration_descriptor *configuration_descriptor;
struct usb_interface_instance *interface_instance_array;
};
/* USB Device Instance
*
* For each physical bus interface we create a logical device structure. This
* tracks all of the required state to track the USB HOST's view of the device.
*
* Keep track of the device configuration for a real physical bus interface,
* this includes the bus interface, multiple function drivers, the current
* configuration and the current state.
*
* This will show:
* the specific bus interface driver
* the default endpoint 0 driver
* the configured function driver
* device state
* device status
* endpoint list
*/
struct usb_device_instance {
/* generic */
char *name;
struct usb_device_descriptor *device_descriptor; /* per device descriptor */
#if defined(CONFIG_USBD_HS)
struct usb_qualifier_descriptor *qualifier_descriptor;
#endif
void (*event) (struct usb_device_instance *device, usb_device_event_t event, int data);
/* Do cdc device specific control requests */
int (*cdc_recv_setup)(struct usb_device_request *request, struct urb *urb);
/* bus interface */
struct usb_bus_instance *bus; /* which bus interface driver */
/* configuration descriptors */
int configurations;
struct usb_configuration_instance *configuration_instance_array;
/* device state */
usb_device_state_t device_state; /* current USB Device state */
usb_device_state_t device_previous_state; /* current USB Device state */
u8 address; /* current address (zero is default) */
u8 configuration; /* current show configuration (zero is default) */
u8 interface; /* current interface (zero is default) */
u8 alternate; /* alternate flag */
usb_device_status_t status; /* device status */
int urbs_queued; /* number of submitted urbs */
/* Shouldn't need to make this atomic, all we need is a change indicator */
unsigned long usbd_rxtx_timestamp;
unsigned long usbd_last_rxtx_timestamp;
};
/* Bus Interface configuration structure
*
* This is allocated for each configured instance of a bus interface driver.
*
* The privdata pointer may be used by the bus interface driver to store private
* per instance state information.
*/
struct usb_bus_instance {
struct usb_device_instance *device;
struct usb_endpoint_instance *endpoint_array; /* array of available configured endpoints */
int max_endpoints; /* maximimum number of rx enpoints */
unsigned char maxpacketsize;
unsigned int serial_number;
char *serial_number_str;
void *privdata; /* private data for the bus interface */
};
void urb_link_init (urb_link * ul);
void urb_detach (struct urb *urb);
urb_link *first_urb_link (urb_link * hd);
struct urb *first_urb (urb_link * hd);
struct urb *first_urb_detached (urb_link * hd);
void urb_append (urb_link * hd, struct urb *urb);
struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint);
void usbd_dealloc_urb (struct urb *urb);
/*
* usbd_device_event is used by bus interface drivers to tell the higher layers that
* certain events have taken place.
*/
void usbd_device_event_irq (struct usb_device_instance *conf, usb_device_event_t, int);
void usbd_device_event (struct usb_device_instance *conf, usb_device_event_t, int);
/* descriptors
*
* Various ways of finding descriptors based on the current device and any
* possible configuration / interface / endpoint for it.
*/
struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct usb_device_instance *, int, int);
struct usb_function_instance *usbd_device_function_instance (struct usb_device_instance *, unsigned int);
struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *, int, int, int);
struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *, int, int, int, int);
struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance *, int, int, int, int);
struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
struct usb_class_descriptor *usbd_device_class_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
struct usb_class_report_descriptor *usbd_device_class_report_descriptor_index( struct usb_device_instance *, int , int , int , int , int );
struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *, int, int, int, int, int);
int usbd_device_endpoint_transfersize (struct usb_device_instance *, int, int, int, int, int);
struct usb_string_descriptor *usbd_get_string (u8);
struct usb_device_descriptor *usbd_device_device_descriptor(struct
usb_device_instance *, int);
#if defined(CONFIG_USBD_HS)
/*
* is_usbd_high_speed routine needs to be defined by specific gadget driver
* It returns true if device enumerates at High speed
* Retuns false otherwise
*/
int is_usbd_high_speed(void);
#endif
int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint);
void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad);
void usbd_tx_complete (struct usb_endpoint_instance *endpoint);
/* These are macros used in debugging */
#ifdef DEBUG
static inline void print_urb(struct urb *u)
{
serial_printf("urb %p\n", (u));
serial_printf("\tendpoint %p\n", u->endpoint);
serial_printf("\tdevice %p\n", u->device);
serial_printf("\tbuffer %p\n", u->buffer);
serial_printf("\tbuffer_length %d\n", u->buffer_length);
serial_printf("\tactual_length %d\n", u->actual_length);
serial_printf("\tstatus %d\n", u->status);
serial_printf("\tdata %d\n", u->data);
}
static inline void print_usb_device_request(struct usb_device_request *r)
{
serial_printf("usb request\n");
serial_printf("\tbmRequestType 0x%2.2x\n", r->bmRequestType);
if ((r->bmRequestType & USB_REQ_DIRECTION_MASK) == 0)
serial_printf("\t\tDirection : To device\n");
else
serial_printf("\t\tDirection : To host\n");
if ((r->bmRequestType & USB_TYPE_STANDARD) == USB_TYPE_STANDARD)
serial_printf("\t\tType : Standard\n");
if ((r->bmRequestType & USB_TYPE_CLASS) == USB_TYPE_CLASS)
serial_printf("\t\tType : Standard\n");
if ((r->bmRequestType & USB_TYPE_VENDOR) == USB_TYPE_VENDOR)
serial_printf("\t\tType : Standard\n");
if ((r->bmRequestType & USB_TYPE_RESERVED) == USB_TYPE_RESERVED)
serial_printf("\t\tType : Standard\n");
if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
USB_REQ_RECIPIENT_DEVICE)
serial_printf("\t\tRecipient : Device\n");
if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
USB_REQ_RECIPIENT_INTERFACE)
serial_printf("\t\tRecipient : Interface\n");
if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
USB_REQ_RECIPIENT_ENDPOINT)
serial_printf("\t\tRecipient : Endpoint\n");
if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
USB_REQ_RECIPIENT_OTHER)
serial_printf("\t\tRecipient : Other\n");
serial_printf("\tbRequest 0x%2.2x\n", r->bRequest);
if (r->bRequest == USB_REQ_GET_STATUS)
serial_printf("\t\tGET_STATUS\n");
else if (r->bRequest == USB_REQ_SET_ADDRESS)
serial_printf("\t\tSET_ADDRESS\n");
else if (r->bRequest == USB_REQ_SET_FEATURE)
serial_printf("\t\tSET_FEATURE\n");
else if (r->bRequest == USB_REQ_GET_DESCRIPTOR)
serial_printf("\t\tGET_DESCRIPTOR\n");
else if (r->bRequest == USB_REQ_SET_CONFIGURATION)
serial_printf("\t\tSET_CONFIGURATION\n");
else if (r->bRequest == USB_REQ_SET_INTERFACE)
serial_printf("\t\tUSB_REQ_SET_INTERFACE\n");
else
serial_printf("\tUNKNOWN %d\n", r->bRequest);
serial_printf("\twValue 0x%4.4x\n", r->wValue);
if (r->bRequest == USB_REQ_GET_DESCRIPTOR) {
switch (r->wValue >> 8) {
case USB_DESCRIPTOR_TYPE_DEVICE:
serial_printf("\tDEVICE\n");
break;
case USB_DESCRIPTOR_TYPE_CONFIGURATION:
serial_printf("\tCONFIGURATION\n");
break;
case USB_DESCRIPTOR_TYPE_STRING:
serial_printf("\tSTRING\n");
break;
case USB_DESCRIPTOR_TYPE_INTERFACE:
serial_printf("\tINTERFACE\n");
break;
case USB_DESCRIPTOR_TYPE_ENDPOINT:
serial_printf("\tENDPOINT\n");
break;
case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
serial_printf("\tDEVICE_QUALIFIER\n");
break;
case USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION:
serial_printf("\tOTHER_SPEED_CONFIGURATION\n");
break;
case USB_DESCRIPTOR_TYPE_INTERFACE_POWER:
serial_printf("\tINTERFACE_POWER\n");
break;
case USB_DESCRIPTOR_TYPE_HID:
serial_printf("\tHID\n");
break;
case USB_DESCRIPTOR_TYPE_REPORT:
serial_printf("\tREPORT\n");
break;
default:
serial_printf("\tUNKNOWN TYPE\n");
break;
}
}
serial_printf("\twIndex 0x%4.4x\n", r->wIndex);
serial_printf("\twLength 0x%4.4x\n", r->wLength);
}
#else
/* stubs */
#define print_urb(u)
#define print_usb_device_request(r)
#endif /* DEBUG */
#endif
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