1 /* 2 * (C) Copyright 2003 3 * Gerry Hamel, geh@ti.com, Texas Instruments 4 * 5 * Based on linux/drivers/usbd/usbd.h 6 * 7 * Copyright (c) 2000, 2001, 2002 Lineo 8 * Copyright (c) 2001 Hewlett Packard 9 * 10 * By: 11 * Stuart Lynne <sl@lineo.com>, 12 * Tom Rushworth <tbr@lineo.com>, 13 * Bruce Balden <balden@lineo.com> 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 28 * 29 */ 30 31 #ifndef __USBDCORE_H__ 32 #define __USBDCORE_H__ 33 34 #include <common.h> 35 #include "usbdescriptors.h" 36 37 38 #define MAX_URBS_QUEUED 5 39 40 41 #if 1 42 #define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args) 43 #else 44 #define usberr(fmt,args...) do{}while(0) 45 #endif 46 47 #if 0 48 #define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args) 49 #else 50 #define usbdbg(fmt,args...) do{}while(0) 51 #endif 52 53 #if 0 54 #define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args) 55 #else 56 #define usbinfo(fmt,args...) do{}while(0) 57 #endif 58 59 #ifndef le16_to_cpu 60 #define le16_to_cpu(x) (x) 61 #endif 62 63 #ifndef inb 64 #define inb(p) (*(volatile u8*)(p)) 65 #endif 66 67 #ifndef outb 68 #define outb(val,p) (*(volatile u8*)(p) = (val)) 69 #endif 70 71 #ifndef inw 72 #define inw(p) (*(volatile u16*)(p)) 73 #endif 74 75 #ifndef outw 76 #define outw(val,p) (*(volatile u16*)(p) = (val)) 77 #endif 78 79 #ifndef inl 80 #define inl(p) (*(volatile u32*)(p)) 81 #endif 82 83 #ifndef outl 84 #define outl(val,p) (*(volatile u32*)(p) = (val)) 85 #endif 86 87 #ifndef insw 88 #define insw(p,to,len) mmio_insw(p,to,len) 89 #endif 90 91 #ifndef outsw 92 #define outsw(p,from,len) mmio_outsw(p,from,len) 93 #endif 94 95 #ifndef insb 96 #define insb(p,to,len) mmio_insb(p,to,len) 97 #endif 98 99 #ifndef mmio_insw 100 #define mmio_insw(r,b,l) ({ int __i ; \ 101 u16 *__b2; \ 102 __b2 = (u16 *) b; \ 103 for (__i = 0; __i < l; __i++) { \ 104 *(__b2 + __i) = inw(r); \ 105 }; \ 106 }) 107 #endif 108 109 #ifndef mmio_outsw 110 #define mmio_outsw(r,b,l) ({ int __i; \ 111 u16 *__b2; \ 112 __b2 = (u16 *) b; \ 113 for (__i = 0; __i < l; __i++) { \ 114 outw( *(__b2 + __i), r); \ 115 } \ 116 }) 117 #endif 118 119 #ifndef mmio_insb 120 #define mmio_insb(r,b,l) ({ int __i ; \ 121 u8 *__b2; \ 122 __b2 = (u8 *) b; \ 123 for (__i = 0; __i < l; __i++) { \ 124 *(__b2 + __i) = inb(r); \ 125 }; \ 126 }) 127 #endif 128 129 /* 130 * Structure member address manipulation macros. 131 * These are used by client code (code using the urb_link routines), since 132 * the urb_link structure is embedded in the client data structures. 133 * 134 * Note: a macro offsetof equivalent to member_offset is defined in stddef.h 135 * but this is kept here for the sake of portability. 136 * 137 * p2surround returns a pointer to the surrounding structure given 138 * type of the surrounding structure, the name memb of the structure 139 * member pointed at by ptr. For example, if you have: 140 * 141 * struct foo { 142 * int x; 143 * float y; 144 * char z; 145 * } thingy; 146 * 147 * char *cp = &thingy.z; 148 * 149 * then 150 * 151 * &thingy == p2surround(struct foo, z, cp) 152 * 153 * Clear? 154 */ 155 #define _cv_(ptr) ((char*)(void*)(ptr)) 156 #define member_offset(type,memb) (_cv_(&(((type*)0)->memb))-(char*)0) 157 #define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb))) 158 159 struct urb; 160 161 struct usb_endpoint_instance; 162 struct usb_interface_instance; 163 struct usb_configuration_instance; 164 struct usb_device_instance; 165 struct usb_bus_instance; 166 167 /* 168 * Device and/or Interface Class codes 169 */ 170 #define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */ 171 #define USB_CLASS_AUDIO 1 172 #define USB_CLASS_COMM 2 173 #define USB_CLASS_HID 3 174 #define USB_CLASS_PHYSICAL 5 175 #define USB_CLASS_PRINTER 7 176 #define USB_CLASS_MASS_STORAGE 8 177 #define USB_CLASS_HUB 9 178 #define USB_CLASS_DATA 10 179 #define USB_CLASS_APP_SPEC 0xfe 180 #define USB_CLASS_VENDOR_SPEC 0xff 181 182 /* 183 * USB types 184 */ 185 #define USB_TYPE_STANDARD (0x00 << 5) 186 #define USB_TYPE_CLASS (0x01 << 5) 187 #define USB_TYPE_VENDOR (0x02 << 5) 188 #define USB_TYPE_RESERVED (0x03 << 5) 189 190 /* 191 * USB recipients 192 */ 193 #define USB_RECIP_DEVICE 0x00 194 #define USB_RECIP_INTERFACE 0x01 195 #define USB_RECIP_ENDPOINT 0x02 196 #define USB_RECIP_OTHER 0x03 197 198 /* 199 * USB directions 200 */ 201 #define USB_DIR_OUT 0 202 #define USB_DIR_IN 0x80 203 204 /* 205 * Descriptor types 206 */ 207 #define USB_DT_DEVICE 0x01 208 #define USB_DT_CONFIG 0x02 209 #define USB_DT_STRING 0x03 210 #define USB_DT_INTERFACE 0x04 211 #define USB_DT_ENDPOINT 0x05 212 213 #define USB_DT_HID (USB_TYPE_CLASS | 0x01) 214 #define USB_DT_REPORT (USB_TYPE_CLASS | 0x02) 215 #define USB_DT_PHYSICAL (USB_TYPE_CLASS | 0x03) 216 #define USB_DT_HUB (USB_TYPE_CLASS | 0x09) 217 218 /* 219 * Descriptor sizes per descriptor type 220 */ 221 #define USB_DT_DEVICE_SIZE 18 222 #define USB_DT_CONFIG_SIZE 9 223 #define USB_DT_INTERFACE_SIZE 9 224 #define USB_DT_ENDPOINT_SIZE 7 225 #define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */ 226 #define USB_DT_HUB_NONVAR_SIZE 7 227 #define USB_DT_HID_SIZE 9 228 229 /* 230 * Endpoints 231 */ 232 #define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */ 233 #define USB_ENDPOINT_DIR_MASK 0x80 234 235 #define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */ 236 #define USB_ENDPOINT_XFER_CONTROL 0 237 #define USB_ENDPOINT_XFER_ISOC 1 238 #define USB_ENDPOINT_XFER_BULK 2 239 #define USB_ENDPOINT_XFER_INT 3 240 241 /* 242 * USB Packet IDs (PIDs) 243 */ 244 #define USB_PID_UNDEF_0 0xf0 245 #define USB_PID_OUT 0xe1 246 #define USB_PID_ACK 0xd2 247 #define USB_PID_DATA0 0xc3 248 #define USB_PID_PING 0xb4 /* USB 2.0 */ 249 #define USB_PID_SOF 0xa5 250 #define USB_PID_NYET 0x96 /* USB 2.0 */ 251 #define USB_PID_DATA2 0x87 /* USB 2.0 */ 252 #define USB_PID_SPLIT 0x78 /* USB 2.0 */ 253 #define USB_PID_IN 0x69 254 #define USB_PID_NAK 0x5a 255 #define USB_PID_DATA1 0x4b 256 #define USB_PID_PREAMBLE 0x3c /* Token mode */ 257 #define USB_PID_ERR 0x3c /* USB 2.0: handshake mode */ 258 #define USB_PID_SETUP 0x2d 259 #define USB_PID_STALL 0x1e 260 #define USB_PID_MDATA 0x0f /* USB 2.0 */ 261 262 /* 263 * Standard requests 264 */ 265 #define USB_REQ_GET_STATUS 0x00 266 #define USB_REQ_CLEAR_FEATURE 0x01 267 #define USB_REQ_SET_FEATURE 0x03 268 #define USB_REQ_SET_ADDRESS 0x05 269 #define USB_REQ_GET_DESCRIPTOR 0x06 270 #define USB_REQ_SET_DESCRIPTOR 0x07 271 #define USB_REQ_GET_CONFIGURATION 0x08 272 #define USB_REQ_SET_CONFIGURATION 0x09 273 #define USB_REQ_GET_INTERFACE 0x0A 274 #define USB_REQ_SET_INTERFACE 0x0B 275 #define USB_REQ_SYNCH_FRAME 0x0C 276 277 #define USBD_DEVICE_REQUESTS(x) (((unsigned int)x <= USB_REQ_SYNCH_FRAME) ? usbd_device_requests[x] : "UNKNOWN") 278 279 /* 280 * HID requests 281 */ 282 #define USB_REQ_GET_REPORT 0x01 283 #define USB_REQ_GET_IDLE 0x02 284 #define USB_REQ_GET_PROTOCOL 0x03 285 #define USB_REQ_SET_REPORT 0x09 286 #define USB_REQ_SET_IDLE 0x0A 287 #define USB_REQ_SET_PROTOCOL 0x0B 288 289 290 /* 291 * USB Spec Release number 292 */ 293 294 #define USB_BCD_VERSION 0x0110 295 296 297 /* 298 * Device Requests (c.f Table 9-2) 299 */ 300 301 #define USB_REQ_DIRECTION_MASK 0x80 302 #define USB_REQ_TYPE_MASK 0x60 303 #define USB_REQ_RECIPIENT_MASK 0x1f 304 305 #define USB_REQ_DEVICE2HOST 0x80 306 #define USB_REQ_HOST2DEVICE 0x00 307 308 #define USB_REQ_TYPE_STANDARD 0x00 309 #define USB_REQ_TYPE_CLASS 0x20 310 #define USB_REQ_TYPE_VENDOR 0x40 311 312 #define USB_REQ_RECIPIENT_DEVICE 0x00 313 #define USB_REQ_RECIPIENT_INTERFACE 0x01 314 #define USB_REQ_RECIPIENT_ENDPOINT 0x02 315 #define USB_REQ_RECIPIENT_OTHER 0x03 316 317 /* 318 * get status bits 319 */ 320 321 #define USB_STATUS_SELFPOWERED 0x01 322 #define USB_STATUS_REMOTEWAKEUP 0x02 323 324 #define USB_STATUS_HALT 0x01 325 326 /* 327 * descriptor types 328 */ 329 330 #define USB_DESCRIPTOR_TYPE_DEVICE 0x01 331 #define USB_DESCRIPTOR_TYPE_CONFIGURATION 0x02 332 #define USB_DESCRIPTOR_TYPE_STRING 0x03 333 #define USB_DESCRIPTOR_TYPE_INTERFACE 0x04 334 #define USB_DESCRIPTOR_TYPE_ENDPOINT 0x05 335 #define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER 0x06 336 #define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION 0x07 337 #define USB_DESCRIPTOR_TYPE_INTERFACE_POWER 0x08 338 #define USB_DESCRIPTOR_TYPE_HID 0x21 339 #define USB_DESCRIPTOR_TYPE_REPORT 0x22 340 341 #define USBD_DEVICE_DESCRIPTORS(x) (((unsigned int)x <= USB_DESCRIPTOR_TYPE_INTERFACE_POWER) ? \ 342 usbd_device_descriptors[x] : "UNKNOWN") 343 344 /* 345 * standard feature selectors 346 */ 347 #define USB_ENDPOINT_HALT 0x00 348 #define USB_DEVICE_REMOTE_WAKEUP 0x01 349 #define USB_TEST_MODE 0x02 350 351 352 /* USB Requests 353 * 354 */ 355 356 struct usb_device_request { 357 u8 bmRequestType; 358 u8 bRequest; 359 u16 wValue; 360 u16 wIndex; 361 u16 wLength; 362 } __attribute__ ((packed)); 363 364 365 /* USB Status 366 * 367 */ 368 typedef enum urb_send_status { 369 SEND_IN_PROGRESS, 370 SEND_FINISHED_OK, 371 SEND_FINISHED_ERROR, 372 RECV_READY, 373 RECV_OK, 374 RECV_ERROR 375 } urb_send_status_t; 376 377 /* 378 * Device State (c.f USB Spec 2.0 Figure 9-1) 379 * 380 * What state the usb device is in. 381 * 382 * Note the state does not change if the device is suspended, we simply set a 383 * flag to show that it is suspended. 384 * 385 */ 386 typedef enum usb_device_state { 387 STATE_INIT, /* just initialized */ 388 STATE_CREATED, /* just created */ 389 STATE_ATTACHED, /* we are attached */ 390 STATE_POWERED, /* we have seen power indication (electrical bus signal) */ 391 STATE_DEFAULT, /* we been reset */ 392 STATE_ADDRESSED, /* we have been addressed (in default configuration) */ 393 STATE_CONFIGURED, /* we have seen a set configuration device command */ 394 STATE_UNKNOWN, /* destroyed */ 395 } usb_device_state_t; 396 397 #define USBD_DEVICE_STATE(x) (((unsigned int)x <= STATE_UNKNOWN) ? usbd_device_states[x] : "UNKNOWN") 398 399 /* 400 * Device status 401 * 402 * Overall state 403 */ 404 typedef enum usb_device_status { 405 USBD_OPENING, /* we are currently opening */ 406 USBD_OK, /* ok to use */ 407 USBD_SUSPENDED, /* we are currently suspended */ 408 USBD_CLOSING, /* we are currently closing */ 409 } usb_device_status_t; 410 411 #define USBD_DEVICE_STATUS(x) (((unsigned int)x <= USBD_CLOSING) ? usbd_device_status[x] : "UNKNOWN") 412 413 /* 414 * Device Events 415 * 416 * These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1). 417 * 418 * There are additional events defined to handle some extra actions we need 419 * to have handled. 420 * 421 */ 422 typedef enum usb_device_event { 423 424 DEVICE_UNKNOWN, /* bi - unknown event */ 425 DEVICE_INIT, /* bi - initialize */ 426 DEVICE_CREATE, /* bi - */ 427 DEVICE_HUB_CONFIGURED, /* bi - bus has been plugged int */ 428 DEVICE_RESET, /* bi - hub has powered our port */ 429 430 DEVICE_ADDRESS_ASSIGNED, /* ep0 - set address setup received */ 431 DEVICE_CONFIGURED, /* ep0 - set configure setup received */ 432 DEVICE_SET_INTERFACE, /* ep0 - set interface setup received */ 433 434 DEVICE_SET_FEATURE, /* ep0 - set feature setup received */ 435 DEVICE_CLEAR_FEATURE, /* ep0 - clear feature setup received */ 436 437 DEVICE_DE_CONFIGURED, /* ep0 - set configure setup received for ?? */ 438 439 DEVICE_BUS_INACTIVE, /* bi - bus in inactive (no SOF packets) */ 440 DEVICE_BUS_ACTIVITY, /* bi - bus is active again */ 441 442 DEVICE_POWER_INTERRUPTION, /* bi - hub has depowered our port */ 443 DEVICE_HUB_RESET, /* bi - bus has been unplugged */ 444 DEVICE_DESTROY, /* bi - device instance should be destroyed */ 445 446 DEVICE_HOTPLUG, /* bi - a hotplug event has occured */ 447 448 DEVICE_FUNCTION_PRIVATE, /* function - private */ 449 450 } usb_device_event_t; 451 452 453 typedef struct urb_link { 454 struct urb_link *next; 455 struct urb_link *prev; 456 } urb_link; 457 458 /* USB Data structure - for passing data around. 459 * 460 * This is used for both sending and receiving data. 461 * 462 * The callback function is used to let the function driver know when 463 * transmitted data has been sent. 464 * 465 * The callback function is set by the alloc_recv function when an urb is 466 * allocated for receiving data for an endpoint and used to call the 467 * function driver to inform it that data has arrived. 468 */ 469 470 #define URB_BUF_SIZE 128 /* in linux we'd malloc this, but in u-boot we prefer static data */ 471 struct urb { 472 473 struct usb_endpoint_instance *endpoint; 474 struct usb_device_instance *device; 475 476 struct usb_device_request device_request; /* contents of received SETUP packet */ 477 478 struct urb_link link; /* embedded struct for circular doubly linked list of urbs */ 479 480 u8* buffer; 481 unsigned int buffer_length; 482 unsigned int actual_length; 483 484 urb_send_status_t status; 485 int data; 486 487 u16 buffer_data[URB_BUF_SIZE]; /* data received (OUT) or being sent (IN) */ 488 }; 489 490 /* Endpoint configuration 491 * 492 * Per endpoint configuration data. Used to track which function driver owns 493 * an endpoint. 494 * 495 */ 496 struct usb_endpoint_instance { 497 int endpoint_address; /* logical endpoint address */ 498 499 /* control */ 500 int status; /* halted */ 501 int state; /* available for use by bus interface driver */ 502 503 /* receive side */ 504 struct urb_link rcv; /* received urbs */ 505 struct urb_link rdy; /* empty urbs ready to receive */ 506 struct urb *rcv_urb; /* active urb */ 507 int rcv_attributes; /* copy of bmAttributes from endpoint descriptor */ 508 int rcv_packetSize; /* maximum packet size from endpoint descriptor */ 509 int rcv_transferSize; /* maximum transfer size from function driver */ 510 int rcv_queue; 511 512 /* transmit side */ 513 struct urb_link tx; /* urbs ready to transmit */ 514 struct urb_link done; /* transmitted urbs */ 515 struct urb *tx_urb; /* active urb */ 516 int tx_attributes; /* copy of bmAttributes from endpoint descriptor */ 517 int tx_packetSize; /* maximum packet size from endpoint descriptor */ 518 int tx_transferSize; /* maximum transfer size from function driver */ 519 int tx_queue; 520 521 int sent; /* data already sent */ 522 int last; /* data sent in last packet XXX do we need this */ 523 }; 524 525 struct usb_alternate_instance { 526 struct usb_interface_descriptor *interface_descriptor; 527 528 int endpoints; 529 int *endpoint_transfersize_array; 530 struct usb_endpoint_descriptor **endpoints_descriptor_array; 531 }; 532 533 struct usb_interface_instance { 534 int alternates; 535 struct usb_alternate_instance *alternates_instance_array; 536 }; 537 538 struct usb_configuration_instance { 539 int interfaces; 540 struct usb_configuration_descriptor *configuration_descriptor; 541 struct usb_interface_instance *interface_instance_array; 542 }; 543 544 545 /* USB Device Instance 546 * 547 * For each physical bus interface we create a logical device structure. This 548 * tracks all of the required state to track the USB HOST's view of the device. 549 * 550 * Keep track of the device configuration for a real physical bus interface, 551 * this includes the bus interface, multiple function drivers, the current 552 * configuration and the current state. 553 * 554 * This will show: 555 * the specific bus interface driver 556 * the default endpoint 0 driver 557 * the configured function driver 558 * device state 559 * device status 560 * endpoint list 561 */ 562 563 struct usb_device_instance { 564 565 /* generic */ 566 char *name; 567 struct usb_device_descriptor *device_descriptor; /* per device descriptor */ 568 569 void (*event) (struct usb_device_instance *device, usb_device_event_t event, int data); 570 571 /* Do cdc device specific control requests */ 572 int (*cdc_recv_setup)(struct usb_device_request *request, struct urb *urb); 573 574 /* bus interface */ 575 struct usb_bus_instance *bus; /* which bus interface driver */ 576 577 /* configuration descriptors */ 578 int configurations; 579 struct usb_configuration_instance *configuration_instance_array; 580 581 /* device state */ 582 usb_device_state_t device_state; /* current USB Device state */ 583 usb_device_state_t device_previous_state; /* current USB Device state */ 584 585 u8 address; /* current address (zero is default) */ 586 u8 configuration; /* current show configuration (zero is default) */ 587 u8 interface; /* current interface (zero is default) */ 588 u8 alternate; /* alternate flag */ 589 590 usb_device_status_t status; /* device status */ 591 592 int urbs_queued; /* number of submitted urbs */ 593 594 /* Shouldn't need to make this atomic, all we need is a change indicator */ 595 unsigned long usbd_rxtx_timestamp; 596 unsigned long usbd_last_rxtx_timestamp; 597 598 }; 599 600 /* Bus Interface configuration structure 601 * 602 * This is allocated for each configured instance of a bus interface driver. 603 * 604 * The privdata pointer may be used by the bus interface driver to store private 605 * per instance state information. 606 */ 607 struct usb_bus_instance { 608 609 struct usb_device_instance *device; 610 struct usb_endpoint_instance *endpoint_array; /* array of available configured endpoints */ 611 612 int max_endpoints; /* maximimum number of rx enpoints */ 613 unsigned char maxpacketsize; 614 615 unsigned int serial_number; 616 char *serial_number_str; 617 void *privdata; /* private data for the bus interface */ 618 619 }; 620 621 extern char *usbd_device_events[]; 622 extern char *usbd_device_states[]; 623 extern char *usbd_device_status[]; 624 extern char *usbd_device_requests[]; 625 extern char *usbd_device_descriptors[]; 626 627 void urb_link_init (urb_link * ul); 628 void urb_detach (struct urb *urb); 629 urb_link *first_urb_link (urb_link * hd); 630 struct urb *first_urb (urb_link * hd); 631 struct urb *first_urb_detached (urb_link * hd); 632 void urb_append (urb_link * hd, struct urb *urb); 633 634 struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint); 635 void usbd_dealloc_urb (struct urb *urb); 636 637 /* 638 * usbd_device_event is used by bus interface drivers to tell the higher layers that 639 * certain events have taken place. 640 */ 641 void usbd_device_event_irq (struct usb_device_instance *conf, usb_device_event_t, int); 642 void usbd_device_event (struct usb_device_instance *conf, usb_device_event_t, int); 643 644 /* descriptors 645 * 646 * Various ways of finding descriptors based on the current device and any 647 * possible configuration / interface / endpoint for it. 648 */ 649 struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct usb_device_instance *, int, int); 650 struct usb_function_instance *usbd_device_function_instance (struct usb_device_instance *, unsigned int); 651 struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *, int, int, int); 652 struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *, int, int, int, int); 653 struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance *, int, int, int, int); 654 struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance *, int, int, int, int, int); 655 struct usb_class_descriptor *usbd_device_class_descriptor_index (struct usb_device_instance *, int, int, int, int, int); 656 struct usb_class_report_descriptor *usbd_device_class_report_descriptor_index( struct usb_device_instance *, int , int , int , int , int ); 657 struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *, int, int, int, int, int); 658 int usbd_device_endpoint_transfersize (struct usb_device_instance *, int, int, int, int, int); 659 struct usb_string_descriptor *usbd_get_string (u8); 660 struct usb_device_descriptor *usbd_device_device_descriptor (struct usb_device_instance *, int); 661 662 int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint); 663 void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad); 664 void usbd_tx_complete (struct usb_endpoint_instance *endpoint); 665 666 #endif 667