LXR uboot/include/usbdevice.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * (C) Copyright 2003
   4 * Gerry Hamel, geh@ti.com, Texas Instruments
   5 *
   6 * Based on linux/drivers/usbd/usbd.h
   7 *
   8 * Copyright (c) 2000, 2001, 2002 Lineo
   9 * Copyright (c) 2001 Hewlett Packard
  10 *
  11 * By:
  12 *      Stuart Lynne <sl@lineo.com>,
  13 *      Tom Rushworth <tbr@lineo.com>,
  14 *      Bruce Balden <balden@lineo.com>
  15 */
  16
  17#ifndef __USBDCORE_H__
  18#define __USBDCORE_H__
  19
  20#include <common.h>
  21#include "usbdescriptors.h"
  22
  23
  24#define MAX_URBS_QUEUED 5
  25
  26
  27#if 1
  28#define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
  29#else
  30#define usberr(fmt,args...) do{}while(0)
  31#endif
  32
  33#if 0
  34#define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
  35#else
  36#define usbdbg(fmt,args...) do{}while(0)
  37#endif
  38
  39#if 0
  40#define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
  41#else
  42#define usbinfo(fmt,args...) do{}while(0)
  43#endif
  44
  45#ifndef le16_to_cpu
  46#define le16_to_cpu(x)  (x)
  47#endif
  48
  49#ifndef inb
  50#define inb(p)       (*(volatile u8*)(p))
  51#endif
  52
  53#ifndef outb
  54#define outb(val,p)  (*(volatile u8*)(p) = (val))
  55#endif
  56
  57#ifndef inw
  58#define inw(p)       (*(volatile u16*)(p))
  59#endif
  60
  61#ifndef outw
  62#define outw(val,p)  (*(volatile u16*)(p) = (val))
  63#endif
  64
  65#ifndef inl
  66#define inl(p)       (*(volatile u32*)(p))
  67#endif
  68
  69#ifndef outl
  70#define outl(val,p)  (*(volatile u32*)(p) = (val))
  71#endif
  72
  73#ifndef insw
  74#define insw(p,to,len)     mmio_insw(p,to,len)
  75#endif
  76
  77#ifndef outsw
  78#define outsw(p,from,len)  mmio_outsw(p,from,len)
  79#endif
  80
  81#ifndef insb
  82#define insb(p,to,len)     mmio_insb(p,to,len)
  83#endif
  84
  85#ifndef mmio_insw
  86#define mmio_insw(r,b,l)        ({      int __i ;  \
  87                                        u16 *__b2;  \
  88                                        __b2 = (u16 *) b;  \
  89                                        for (__i = 0; __i < l; __i++) {  \
  90                                          *(__b2 + __i) = inw(r);  \
  91                                        };  \
  92                                })
  93#endif
  94
  95#ifndef mmio_outsw
  96#define mmio_outsw(r,b,l)       ({      int __i; \
  97                                        u16 *__b2; \
  98                                        __b2 = (u16 *) b; \
  99                                        for (__i = 0; __i < l; __i++) { \
 100                                            outw( *(__b2 + __i), r); \
 101                                        } \
 102                                })
 103#endif
 104
 105#ifndef mmio_insb
 106#define mmio_insb(r,b,l)        ({      int __i ;  \
 107                                        u8 *__b2;  \
 108                                        __b2 = (u8 *) b;  \
 109                                        for (__i = 0; __i < l; __i++) {  \
 110                                          *(__b2 + __i) = inb(r);  \
 111                                        };  \
 112                                })
 113#endif
 114
 115/*
 116 * Structure member address manipulation macros.
 117 * These are used by client code (code using the urb_link routines), since
 118 * the urb_link structure is embedded in the client data structures.
 119 *
 120 * Note: a macro offsetof equivalent to member_offset is defined in stddef.h
 121 *       but this is kept here for the sake of portability.
 122 *
 123 * p2surround returns a pointer to the surrounding structure given
 124 * type of the surrounding structure, the name memb of the structure
 125 * member pointed at by ptr.  For example, if you have:
 126 *
 127 *      struct foo {
 128 *          int x;
 129 *          float y;
 130 *          char z;
 131 *      } thingy;
 132 *
 133 *      char *cp = &thingy.z;
 134 *
 135 * then
 136 *
 137 *      &thingy == p2surround(struct foo, z, cp)
 138 *
 139 * Clear?
 140 */
 141#define _cv_(ptr)                 ((char*)(void*)(ptr))
 142#define member_offset(type,memb)  (_cv_(&(((type*)0)->memb))-(char*)0)
 143#define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb)))
 144
 145struct urb;
 146
 147struct usb_endpoint_instance;
 148struct usb_interface_instance;
 149struct usb_configuration_instance;
 150struct usb_device_instance;
 151struct usb_bus_instance;
 152
 153/*
 154 * Device and/or Interface Class codes
 155 */
 156#define USB_CLASS_PER_INTERFACE         0       /* for DeviceClass */
 157#define USB_CLASS_AUDIO                 1
 158#define USB_CLASS_COMM                  2
 159#define USB_CLASS_HID                   3
 160#define USB_CLASS_PHYSICAL              5
 161#define USB_CLASS_PRINTER               7
 162#define USB_CLASS_MASS_STORAGE          8
 163#define USB_CLASS_HUB                   9
 164#define USB_CLASS_DATA                  10
 165#define USB_CLASS_APP_SPEC              0xfe
 166#define USB_CLASS_VENDOR_SPEC           0xff
 167
 168/*
 169 * USB types
 170 */
 171#define USB_TYPE_STANDARD               (0x00 << 5)
 172#define USB_TYPE_CLASS                  (0x01 << 5)
 173#define USB_TYPE_VENDOR                 (0x02 << 5)
 174#define USB_TYPE_RESERVED               (0x03 << 5)
 175
 176/*
 177 * USB recipients
 178 */
 179#define USB_RECIP_DEVICE                0x00
 180#define USB_RECIP_INTERFACE             0x01
 181#define USB_RECIP_ENDPOINT              0x02
 182#define USB_RECIP_OTHER                 0x03
 183
 184/*
 185 * USB directions
 186 */
 187#define USB_DIR_OUT                     0
 188#define USB_DIR_IN                      0x80
 189
 190/*
 191 * Descriptor types
 192 */
 193#define USB_DT_DEVICE                   0x01
 194#define USB_DT_CONFIG                   0x02
 195#define USB_DT_STRING                   0x03
 196#define USB_DT_INTERFACE                0x04
 197#define USB_DT_ENDPOINT                 0x05
 198
 199#if defined(CONFIG_USBD_HS)
 200#define USB_DT_QUAL                     0x06
 201#endif
 202
 203#define USB_DT_HID                      (USB_TYPE_CLASS | 0x01)
 204#define USB_DT_REPORT                   (USB_TYPE_CLASS | 0x02)
 205#define USB_DT_PHYSICAL                 (USB_TYPE_CLASS | 0x03)
 206#define USB_DT_HUB                      (USB_TYPE_CLASS | 0x09)
 207
 208/*
 209 * Descriptor sizes per descriptor type
 210 */
 211#define USB_DT_DEVICE_SIZE              18
 212#define USB_DT_CONFIG_SIZE              9
 213#define USB_DT_INTERFACE_SIZE           9
 214#define USB_DT_ENDPOINT_SIZE            7
 215#define USB_DT_ENDPOINT_AUDIO_SIZE      9       /* Audio extension */
 216#define USB_DT_HUB_NONVAR_SIZE          7
 217#define USB_DT_HID_SIZE                 9
 218
 219/*
 220 * Endpoints
 221 */
 222#define USB_ENDPOINT_NUMBER_MASK        0x0f    /* in bEndpointAddress */
 223#define USB_ENDPOINT_DIR_MASK           0x80
 224
 225#define USB_ENDPOINT_XFERTYPE_MASK      0x03    /* in bmAttributes */
 226#define USB_ENDPOINT_XFER_CONTROL       0
 227#define USB_ENDPOINT_XFER_ISOC          1
 228#define USB_ENDPOINT_XFER_BULK          2
 229#define USB_ENDPOINT_XFER_INT           3
 230
 231/*
 232 * USB Packet IDs (PIDs)
 233 */
 234#define USB_PID_UNDEF_0                        0xf0
 235#define USB_PID_OUT                            0xe1
 236#define USB_PID_ACK                            0xd2
 237#define USB_PID_DATA0                          0xc3
 238#define USB_PID_PING                           0xb4     /* USB 2.0 */
 239#define USB_PID_SOF                            0xa5
 240#define USB_PID_NYET                           0x96     /* USB 2.0 */
 241#define USB_PID_DATA2                          0x87     /* USB 2.0 */
 242#define USB_PID_SPLIT                          0x78     /* USB 2.0 */
 243#define USB_PID_IN                             0x69
 244#define USB_PID_NAK                            0x5a
 245#define USB_PID_DATA1                          0x4b
 246#define USB_PID_PREAMBLE                       0x3c     /* Token mode */
 247#define USB_PID_ERR                            0x3c     /* USB 2.0: handshake mode */
 248#define USB_PID_SETUP                          0x2d
 249#define USB_PID_STALL                          0x1e
 250#define USB_PID_MDATA                          0x0f     /* USB 2.0 */
 251
 252/*
 253 * Standard requests
 254 */
 255#define USB_REQ_GET_STATUS              0x00
 256#define USB_REQ_CLEAR_FEATURE           0x01
 257#define USB_REQ_SET_FEATURE             0x03
 258#define USB_REQ_SET_ADDRESS             0x05
 259#define USB_REQ_GET_DESCRIPTOR          0x06
 260#define USB_REQ_SET_DESCRIPTOR          0x07
 261#define USB_REQ_GET_CONFIGURATION       0x08
 262#define USB_REQ_SET_CONFIGURATION       0x09
 263#define USB_REQ_GET_INTERFACE           0x0A
 264#define USB_REQ_SET_INTERFACE           0x0B
 265#define USB_REQ_SYNCH_FRAME             0x0C
 266
 267#define USBD_DEVICE_REQUESTS(x) (((unsigned int)x <= USB_REQ_SYNCH_FRAME) ? usbd_device_requests[x] : "UNKNOWN")
 268
 269/*
 270 * HID requests
 271 */
 272#define USB_REQ_GET_REPORT              0x01
 273#define USB_REQ_GET_IDLE                0x02
 274#define USB_REQ_GET_PROTOCOL            0x03
 275#define USB_REQ_SET_REPORT              0x09
 276#define USB_REQ_SET_IDLE                0x0A
 277#define USB_REQ_SET_PROTOCOL            0x0B
 278
 279
 280/*
 281 * USB Spec Release number
 282 */
 283
 284#if defined(CONFIG_USBD_HS)
 285#define USB_BCD_VERSION                 0x0200
 286#else
 287#define USB_BCD_VERSION                 0x0110
 288#endif
 289
 290
 291/*
 292 * Device Requests      (c.f Table 9-2)
 293 */
 294
 295#define USB_REQ_DIRECTION_MASK          0x80
 296#define USB_REQ_TYPE_MASK               0x60
 297#define USB_REQ_RECIPIENT_MASK          0x1f
 298
 299#define USB_REQ_DEVICE2HOST             0x80
 300#define USB_REQ_HOST2DEVICE             0x00
 301
 302#define USB_REQ_TYPE_STANDARD           0x00
 303#define USB_REQ_TYPE_CLASS              0x20
 304#define USB_REQ_TYPE_VENDOR             0x40
 305
 306#define USB_REQ_RECIPIENT_DEVICE        0x00
 307#define USB_REQ_RECIPIENT_INTERFACE     0x01
 308#define USB_REQ_RECIPIENT_ENDPOINT      0x02
 309#define USB_REQ_RECIPIENT_OTHER         0x03
 310
 311/*
 312 * get status bits
 313 */
 314
 315#define USB_STATUS_SELFPOWERED          0x01
 316#define USB_STATUS_REMOTEWAKEUP         0x02
 317
 318#define USB_STATUS_HALT                 0x01
 319
 320/*
 321 * descriptor types
 322 */
 323
 324#define USB_DESCRIPTOR_TYPE_DEVICE                      0x01
 325#define USB_DESCRIPTOR_TYPE_CONFIGURATION               0x02
 326#define USB_DESCRIPTOR_TYPE_STRING                      0x03
 327#define USB_DESCRIPTOR_TYPE_INTERFACE                   0x04
 328#define USB_DESCRIPTOR_TYPE_ENDPOINT                    0x05
 329#define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER            0x06
 330#define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION   0x07
 331#define USB_DESCRIPTOR_TYPE_INTERFACE_POWER             0x08
 332#define USB_DESCRIPTOR_TYPE_HID                         0x21
 333#define USB_DESCRIPTOR_TYPE_REPORT                      0x22
 334
 335#define USBD_DEVICE_DESCRIPTORS(x) (((unsigned int)x <= USB_DESCRIPTOR_TYPE_INTERFACE_POWER) ? \
 336                usbd_device_descriptors[x] : "UNKNOWN")
 337
 338/*
 339 * standard feature selectors
 340 */
 341#define USB_ENDPOINT_HALT               0x00
 342#define USB_DEVICE_REMOTE_WAKEUP        0x01
 343#define USB_TEST_MODE                   0x02
 344
 345
 346/* USB Requests
 347 *
 348 */
 349
 350struct usb_device_request {
 351        u8 bmRequestType;
 352        u8 bRequest;
 353        u16 wValue;
 354        u16 wIndex;
 355        u16 wLength;
 356} __attribute__ ((packed));
 357
 358
 359/* USB Status
 360 *
 361 */
 362typedef enum urb_send_status {
 363        SEND_IN_PROGRESS,
 364        SEND_FINISHED_OK,
 365        SEND_FINISHED_ERROR,
 366        RECV_READY,
 367        RECV_OK,
 368        RECV_ERROR
 369} urb_send_status_t;
 370
 371/*
 372 * Device State (c.f USB Spec 2.0 Figure 9-1)
 373 *
 374 * What state the usb device is in.
 375 *
 376 * Note the state does not change if the device is suspended, we simply set a
 377 * flag to show that it is suspended.
 378 *
 379 */
 380typedef enum usb_device_state {
 381        STATE_INIT,             /* just initialized */
 382        STATE_CREATED,          /* just created */
 383        STATE_ATTACHED,         /* we are attached */
 384        STATE_POWERED,          /* we have seen power indication (electrical bus signal) */
 385        STATE_DEFAULT,          /* we been reset */
 386        STATE_ADDRESSED,        /* we have been addressed (in default configuration) */
 387        STATE_CONFIGURED,       /* we have seen a set configuration device command */
 388        STATE_UNKNOWN,          /* destroyed */
 389} usb_device_state_t;
 390
 391#define USBD_DEVICE_STATE(x) (((unsigned int)x <= STATE_UNKNOWN) ? usbd_device_states[x] : "UNKNOWN")
 392
 393/*
 394 * Device status
 395 *
 396 * Overall state
 397 */
 398typedef enum usb_device_status {
 399        USBD_OPENING,           /* we are currently opening */
 400        USBD_OK,                /* ok to use */
 401        USBD_SUSPENDED,         /* we are currently suspended */
 402        USBD_CLOSING,           /* we are currently closing */
 403} usb_device_status_t;
 404
 405#define USBD_DEVICE_STATUS(x) (((unsigned int)x <= USBD_CLOSING) ? usbd_device_status[x] : "UNKNOWN")
 406
 407/*
 408 * Device Events
 409 *
 410 * These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1).
 411 *
 412 * There are additional events defined to handle some extra actions we need
 413 * to have handled.
 414 *
 415 */
 416typedef enum usb_device_event {
 417
 418        DEVICE_UNKNOWN,         /* bi - unknown event */
 419        DEVICE_INIT,            /* bi  - initialize */
 420        DEVICE_CREATE,          /* bi  - */
 421        DEVICE_HUB_CONFIGURED,  /* bi  - bus has been plugged int */
 422        DEVICE_RESET,           /* bi  - hub has powered our port */
 423
 424        DEVICE_ADDRESS_ASSIGNED,        /* ep0 - set address setup received */
 425        DEVICE_CONFIGURED,      /* ep0 - set configure setup received */
 426        DEVICE_SET_INTERFACE,   /* ep0 - set interface setup received */
 427
 428        DEVICE_SET_FEATURE,     /* ep0 - set feature setup received */
 429        DEVICE_CLEAR_FEATURE,   /* ep0 - clear feature setup received */
 430
 431        DEVICE_DE_CONFIGURED,   /* ep0 - set configure setup received for ?? */
 432
 433        DEVICE_BUS_INACTIVE,    /* bi  - bus in inactive (no SOF packets) */
 434        DEVICE_BUS_ACTIVITY,    /* bi  - bus is active again */
 435
 436        DEVICE_POWER_INTERRUPTION,      /* bi  - hub has depowered our port */
 437        DEVICE_HUB_RESET,       /* bi  - bus has been unplugged */
 438        DEVICE_DESTROY,         /* bi  - device instance should be destroyed */
 439
 440        DEVICE_HOTPLUG,         /* bi  - a hotplug event has occurred */
 441
 442        DEVICE_FUNCTION_PRIVATE,        /* function - private */
 443
 444} usb_device_event_t;
 445
 446
 447typedef struct urb_link {
 448        struct urb_link *next;
 449        struct urb_link *prev;
 450} urb_link;
 451
 452/* USB Data structure - for passing data around.
 453 *
 454 * This is used for both sending and receiving data.
 455 *
 456 * The callback function is used to let the function driver know when
 457 * transmitted data has been sent.
 458 *
 459 * The callback function is set by the alloc_recv function when an urb is
 460 * allocated for receiving data for an endpoint and used to call the
 461 * function driver to inform it that data has arrived.
 462 */
 463
 464/* in linux we'd malloc this, but in u-boot we prefer static data */
 465#define URB_BUF_SIZE 512
 466
 467struct urb {
 468
 469        struct usb_endpoint_instance *endpoint;
 470        struct usb_device_instance *device;
 471
 472        struct usb_device_request device_request;       /* contents of received SETUP packet */
 473
 474        struct urb_link link;   /* embedded struct for circular doubly linked list of urbs */
 475
 476        u8* buffer;
 477        unsigned int buffer_length;
 478        unsigned int actual_length;
 479
 480        urb_send_status_t status;
 481        int data;
 482
 483        u16 buffer_data[URB_BUF_SIZE];  /* data received (OUT) or being sent (IN) */
 484};
 485
 486/* Endpoint configuration
 487 *
 488 * Per endpoint configuration data. Used to track which function driver owns
 489 * an endpoint.
 490 *
 491 */
 492struct usb_endpoint_instance {
 493        int endpoint_address;   /* logical endpoint address */
 494
 495        /* control */
 496        int status;             /* halted */
 497        int state;              /* available for use by bus interface driver */
 498
 499        /* receive side */
 500        struct urb_link rcv;    /* received urbs */
 501        struct urb_link rdy;    /* empty urbs ready to receive */
 502        struct urb *rcv_urb;    /* active urb */
 503        int rcv_attributes;     /* copy of bmAttributes from endpoint descriptor */
 504        int rcv_packetSize;     /* maximum packet size from endpoint descriptor */
 505        int rcv_transferSize;   /* maximum transfer size from function driver */
 506        int rcv_queue;
 507
 508        /* transmit side */
 509        struct urb_link tx;     /* urbs ready to transmit */
 510        struct urb_link done;   /* transmitted urbs */
 511        struct urb *tx_urb;     /* active urb */
 512        int tx_attributes;      /* copy of bmAttributes from endpoint descriptor */
 513        int tx_packetSize;      /* maximum packet size from endpoint descriptor */
 514        int tx_transferSize;    /* maximum transfer size from function driver */
 515        int tx_queue;
 516
 517        int sent;               /* data already sent */
 518        int last;               /* data sent in last packet XXX do we need this */
 519};
 520
 521struct usb_alternate_instance {
 522        struct usb_interface_descriptor *interface_descriptor;
 523
 524        int endpoints;
 525        int *endpoint_transfersize_array;
 526        struct usb_endpoint_descriptor **endpoints_descriptor_array;
 527};
 528
 529struct usb_interface_instance {
 530        int alternates;
 531        struct usb_alternate_instance *alternates_instance_array;
 532};
 533
 534struct usb_configuration_instance {
 535        int interfaces;
 536        struct usb_configuration_descriptor *configuration_descriptor;
 537        struct usb_interface_instance *interface_instance_array;
 538};
 539
 540
 541/* USB Device Instance
 542 *
 543 * For each physical bus interface we create a logical device structure. This
 544 * tracks all of the required state to track the USB HOST's view of the device.
 545 *
 546 * Keep track of the device configuration for a real physical bus interface,
 547 * this includes the bus interface, multiple function drivers, the current
 548 * configuration and the current state.
 549 *
 550 * This will show:
 551 *      the specific bus interface driver
 552 *      the default endpoint 0 driver
 553 *      the configured function driver
 554 *      device state
 555 *      device status
 556 *      endpoint list
 557 */
 558
 559struct usb_device_instance {
 560
 561        /* generic */
 562        char *name;
 563        struct usb_device_descriptor *device_descriptor;        /* per device descriptor */
 564#if defined(CONFIG_USBD_HS)
 565        struct usb_qualifier_descriptor *qualifier_descriptor;
 566#endif
 567
 568        void (*event) (struct usb_device_instance *device, usb_device_event_t event, int data);
 569
 570        /* Do cdc device specific control requests */
 571        int (*cdc_recv_setup)(struct usb_device_request *request, struct urb *urb);
 572
 573        /* bus interface */
 574        struct usb_bus_instance *bus;   /* which bus interface driver */
 575
 576        /* configuration descriptors */
 577        int configurations;
 578        struct usb_configuration_instance *configuration_instance_array;
 579
 580        /* device state */
 581        usb_device_state_t device_state;        /* current USB Device state */
 582        usb_device_state_t device_previous_state;       /* current USB Device state */
 583
 584        u8 address;             /* current address (zero is default) */
 585        u8 configuration;       /* current show configuration (zero is default) */
 586        u8 interface;           /* current interface (zero is default) */
 587        u8 alternate;           /* alternate flag */
 588
 589        usb_device_status_t status;     /* device status */
 590
 591        int urbs_queued;        /* number of submitted urbs */
 592
 593        /* Shouldn't need to make this atomic, all we need is a change indicator */
 594        unsigned long usbd_rxtx_timestamp;
 595        unsigned long usbd_last_rxtx_timestamp;
 596
 597};
 598
 599/* Bus Interface configuration structure
 600 *
 601 * This is allocated for each configured instance of a bus interface driver.
 602 *
 603 * The privdata pointer may be used by the bus interface driver to store private
 604 * per instance state information.
 605 */
 606struct usb_bus_instance {
 607
 608        struct usb_device_instance *device;
 609        struct usb_endpoint_instance *endpoint_array;   /* array of available configured endpoints */
 610
 611        int max_endpoints;      /* maximimum number of rx enpoints */
 612        unsigned char                   maxpacketsize;
 613
 614        unsigned int serial_number;
 615        char *serial_number_str;
 616        void *privdata;         /* private data for the bus interface */
 617
 618};
 619
 620extern char *usbd_device_events[];
 621extern char *usbd_device_states[];
 622extern char *usbd_device_status[];
 623extern char *usbd_device_requests[];
 624extern char *usbd_device_descriptors[];
 625
 626void urb_link_init (urb_link * ul);
 627void urb_detach (struct urb *urb);
 628urb_link *first_urb_link (urb_link * hd);
 629struct urb *first_urb (urb_link * hd);
 630struct urb *first_urb_detached (urb_link * hd);
 631void urb_append (urb_link * hd, struct urb *urb);
 632
 633struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint);
 634void        usbd_dealloc_urb (struct urb *urb);
 635
 636/*
 637 * usbd_device_event is used by bus interface drivers to tell the higher layers that
 638 * certain events have taken place.
 639 */
 640void usbd_device_event_irq (struct usb_device_instance *conf, usb_device_event_t, int);
 641void usbd_device_event (struct usb_device_instance *conf, usb_device_event_t, int);
 642
 643/* descriptors
 644 *
 645 * Various ways of finding descriptors based on the current device and any
 646 * possible configuration / interface / endpoint for it.
 647 */
 648struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct usb_device_instance *, int, int);
 649struct usb_function_instance *usbd_device_function_instance (struct usb_device_instance *, unsigned int);
 650struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *, int, int, int);
 651struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *, int, int, int, int);
 652struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance *, int, int, int, int);
 653struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
 654struct usb_class_descriptor *usbd_device_class_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
 655struct usb_class_report_descriptor *usbd_device_class_report_descriptor_index( struct usb_device_instance *, int , int , int , int , int );
 656struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *, int, int, int, int, int);
 657int                             usbd_device_endpoint_transfersize (struct usb_device_instance *, int, int, int, int, int);
 658struct usb_string_descriptor *usbd_get_string (u8);
 659struct usb_device_descriptor *usbd_device_device_descriptor(struct
 660                usb_device_instance *, int);
 661
 662#if defined(CONFIG_USBD_HS)
 663/*
 664 * is_usbd_high_speed routine needs to be defined by specific gadget driver
 665 * It returns true if device enumerates at High speed
 666 * Retuns false otherwise
 667 */
 668int is_usbd_high_speed(void);
 669#endif
 670int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint);
 671void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad);
 672void usbd_tx_complete (struct usb_endpoint_instance *endpoint);
 673
 674/* These are macros used in debugging */
 675#ifdef DEBUG
 676static inline void print_urb(struct urb *u)
 677{
 678        serial_printf("urb %p\n", (u));
 679        serial_printf("\tendpoint %p\n", u->endpoint);
 680        serial_printf("\tdevice %p\n", u->device);
 681        serial_printf("\tbuffer %p\n", u->buffer);
 682        serial_printf("\tbuffer_length %d\n", u->buffer_length);
 683        serial_printf("\tactual_length %d\n", u->actual_length);
 684        serial_printf("\tstatus %d\n", u->status);
 685        serial_printf("\tdata %d\n", u->data);
 686}
 687
 688static inline void print_usb_device_request(struct usb_device_request *r)
 689{
 690        serial_printf("usb request\n");
 691        serial_printf("\tbmRequestType 0x%2.2x\n", r->bmRequestType);
 692        if ((r->bmRequestType & USB_REQ_DIRECTION_MASK) == 0)
 693                serial_printf("\t\tDirection : To device\n");
 694        else
 695                serial_printf("\t\tDirection : To host\n");
 696        if ((r->bmRequestType & USB_TYPE_STANDARD) == USB_TYPE_STANDARD)
 697                serial_printf("\t\tType      : Standard\n");
 698        if ((r->bmRequestType & USB_TYPE_CLASS) == USB_TYPE_CLASS)
 699                serial_printf("\t\tType      : Standard\n");
 700        if ((r->bmRequestType & USB_TYPE_VENDOR) == USB_TYPE_VENDOR)
 701                serial_printf("\t\tType      : Standard\n");
 702        if ((r->bmRequestType & USB_TYPE_RESERVED) == USB_TYPE_RESERVED)
 703                serial_printf("\t\tType      : Standard\n");
 704        if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
 705            USB_REQ_RECIPIENT_DEVICE)
 706                serial_printf("\t\tRecipient : Device\n");
 707        if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
 708            USB_REQ_RECIPIENT_INTERFACE)
 709                serial_printf("\t\tRecipient : Interface\n");
 710        if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
 711            USB_REQ_RECIPIENT_ENDPOINT)
 712                serial_printf("\t\tRecipient : Endpoint\n");
 713        if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
 714            USB_REQ_RECIPIENT_OTHER)
 715                serial_printf("\t\tRecipient : Other\n");
 716        serial_printf("\tbRequest      0x%2.2x\n", r->bRequest);
 717        if (r->bRequest == USB_REQ_GET_STATUS)
 718                serial_printf("\t\tGET_STATUS\n");
 719        else if (r->bRequest == USB_REQ_SET_ADDRESS)
 720                serial_printf("\t\tSET_ADDRESS\n");
 721        else if (r->bRequest == USB_REQ_SET_FEATURE)
 722                serial_printf("\t\tSET_FEATURE\n");
 723        else if (r->bRequest == USB_REQ_GET_DESCRIPTOR)
 724                serial_printf("\t\tGET_DESCRIPTOR\n");
 725        else if (r->bRequest == USB_REQ_SET_CONFIGURATION)
 726                serial_printf("\t\tSET_CONFIGURATION\n");
 727        else if (r->bRequest == USB_REQ_SET_INTERFACE)
 728                serial_printf("\t\tUSB_REQ_SET_INTERFACE\n");
 729        else
 730                serial_printf("\tUNKNOWN %d\n", r->bRequest);
 731        serial_printf("\twValue        0x%4.4x\n", r->wValue);
 732        if (r->bRequest == USB_REQ_GET_DESCRIPTOR) {
 733                switch (r->wValue >> 8) {
 734                case USB_DESCRIPTOR_TYPE_DEVICE:
 735                        serial_printf("\tDEVICE\n");
 736                        break;
 737                case USB_DESCRIPTOR_TYPE_CONFIGURATION:
 738                        serial_printf("\tCONFIGURATION\n");
 739                        break;
 740                case USB_DESCRIPTOR_TYPE_STRING:
 741                        serial_printf("\tSTRING\n");
 742                        break;
 743                case USB_DESCRIPTOR_TYPE_INTERFACE:
 744                        serial_printf("\tINTERFACE\n");
 745                        break;
 746                case USB_DESCRIPTOR_TYPE_ENDPOINT:
 747                        serial_printf("\tENDPOINT\n");
 748                        break;
 749                case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
 750                        serial_printf("\tDEVICE_QUALIFIER\n");
 751                        break;
 752                case USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION:
 753                        serial_printf("\tOTHER_SPEED_CONFIGURATION\n");
 754                        break;
 755                case USB_DESCRIPTOR_TYPE_INTERFACE_POWER:
 756                        serial_printf("\tINTERFACE_POWER\n");
 757                        break;
 758                case USB_DESCRIPTOR_TYPE_HID:
 759                        serial_printf("\tHID\n");
 760                        break;
 761                case USB_DESCRIPTOR_TYPE_REPORT:
 762                        serial_printf("\tREPORT\n");
 763                        break;
 764                default:
 765                        serial_printf("\tUNKNOWN TYPE\n");
 766                        break;
 767                }
 768        }
 769        serial_printf("\twIndex        0x%4.4x\n", r->wIndex);
 770        serial_printf("\twLength       0x%4.4x\n", r->wLength);
 771}
 772#else
 773/* stubs */
 774#define print_urb(u)
 775#define print_usb_device_request(r)
 776#endif /* DEBUG */
 777#endif
 778