Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 9cec99ba9c
Fetching contributors…

Cannot retrieve contributors at this time

file 537 lines (440 sloc) 17.053 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include <CoreFoundation/CoreFoundation.h>

#include <IOKit/IOKitLib.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/usb/IOUSBLib.h>
#include <IOKit/IOMessage.h>
#include <mach/mach_port.h>

#include "sysdeps.h"

#include <stdio.h>

#define TRACE_TAG TRACE_USB
#include "adb.h"
#include "usb_vendors.h"

#define DBG D

static IONotificationPortRef notificationPort = 0;
static io_iterator_t* notificationIterators;

struct usb_handle
{
    UInt8 bulkIn;
    UInt8 bulkOut;
    IOUSBInterfaceInterface **interface;
    io_object_t usbNotification;
    unsigned int zero_mask;
};

static CFRunLoopRef currentRunLoop = 0;
static pthread_mutex_t start_lock;
static pthread_cond_t start_cond;


static void AndroidInterfaceAdded(void *refCon, io_iterator_t iterator);
static void AndroidInterfaceNotify(void *refCon, io_iterator_t iterator,
                                   natural_t messageType,
                                   void *messageArgument);
static usb_handle* CheckInterface(IOUSBInterfaceInterface **iface,
                                  UInt16 vendor, UInt16 product);

static int
InitUSB()
{
    CFMutableDictionaryRef matchingDict;
    CFRunLoopSourceRef runLoopSource;
    SInt32 vendor, if_subclass, if_protocol;
    unsigned i;

    //* To set up asynchronous notifications, create a notification port and
    //* add its run loop event source to the program's run loop
    notificationPort = IONotificationPortCreate(kIOMasterPortDefault);
    runLoopSource = IONotificationPortGetRunLoopSource(notificationPort);
    CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopDefaultMode);

    memset(notificationIterators, 0, sizeof(notificationIterators));

    //* loop through all supported vendors
    for (i = 0; i < vendorIdCount; i++) {
        //* Create our matching dictionary to find the Android device's
        //* adb interface
        //* IOServiceAddMatchingNotification consumes the reference, so we do
        //* not need to release this
        matchingDict = IOServiceMatching(kIOUSBInterfaceClassName);

        if (!matchingDict) {
            DBG("ERR: Couldn't create USB matching dictionary.\n");
            return -1;
        }

        //* Match based on vendor id, interface subclass and protocol
        vendor = vendorIds[i];
        if_subclass = ADB_SUBCLASS;
        if_protocol = ADB_PROTOCOL;
        CFDictionarySetValue(matchingDict, CFSTR(kUSBVendorID),
                             CFNumberCreate(kCFAllocatorDefault,
                                            kCFNumberSInt32Type, &vendor));
        CFDictionarySetValue(matchingDict, CFSTR(kUSBInterfaceSubClass),
                             CFNumberCreate(kCFAllocatorDefault,
                                            kCFNumberSInt32Type, &if_subclass));
        CFDictionarySetValue(matchingDict, CFSTR(kUSBInterfaceProtocol),
                             CFNumberCreate(kCFAllocatorDefault,
                                            kCFNumberSInt32Type, &if_protocol));
        IOServiceAddMatchingNotification(
                notificationPort,
                kIOFirstMatchNotification,
                matchingDict,
                AndroidInterfaceAdded,
                NULL,
                &notificationIterators[i]);

        //* Iterate over set of matching interfaces to access already-present
        //* devices and to arm the notification
        AndroidInterfaceAdded(NULL, notificationIterators[i]);
    }

    return 0;
}

static void
AndroidInterfaceAdded(void *refCon, io_iterator_t iterator)
{
    kern_return_t kr;
    io_service_t usbDevice;
    io_service_t usbInterface;
    IOCFPlugInInterface **plugInInterface = NULL;
    IOUSBInterfaceInterface220 **iface = NULL;
    IOUSBDeviceInterface197 **dev = NULL;
    HRESULT result;
    SInt32 score;
    UInt16 vendor;
    UInt16 product;
    UInt8 serialIndex;
    char serial[256];

    while ((usbInterface = IOIteratorNext(iterator))) {
        //* Create an intermediate interface plugin
        kr = IOCreatePlugInInterfaceForService(usbInterface,
                                               kIOUSBInterfaceUserClientTypeID,
                                               kIOCFPlugInInterfaceID,
                                               &plugInInterface, &score);
        IOObjectRelease(usbInterface);
        if ((kIOReturnSuccess != kr) || (!plugInInterface)) {
            DBG("ERR: Unable to create an interface plug-in (%08x)\n", kr);
            continue;
        }

        //* This gets us the interface object
        result = (*plugInInterface)->QueryInterface(plugInInterface,
                CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID), (LPVOID)
                &iface);
        //* We only needed the plugin to get the interface, so discard it
        (*plugInInterface)->Release(plugInInterface);
        if (result || !iface) {
            DBG("ERR: Couldn't query the interface (%08x)\n", (int) result);
            continue;
        }

        //* this gets us an ioservice, with which we will find the actual
        //* device; after getting a plugin, and querying the interface, of
        //* course.
        //* Gotta love OS X
        kr = (*iface)->GetDevice(iface, &usbDevice);
        if (kIOReturnSuccess != kr || !usbDevice) {
            DBG("ERR: Couldn't grab device from interface (%08x)\n", kr);
            continue;
        }

        plugInInterface = NULL;
        score = 0;
        //* create an intermediate device plugin
        kr = IOCreatePlugInInterfaceForService(usbDevice,
                                               kIOUSBDeviceUserClientTypeID,
                                               kIOCFPlugInInterfaceID,
                                               &plugInInterface, &score);
        //* only needed this to find the plugin
        (void)IOObjectRelease(usbDevice);
        if ((kIOReturnSuccess != kr) || (!plugInInterface)) {
            DBG("ERR: Unable to create a device plug-in (%08x)\n", kr);
            continue;
        }

        result = (*plugInInterface)->QueryInterface(plugInInterface,
                CFUUIDGetUUIDBytes(kIOUSBDeviceInterfaceID), (LPVOID) &dev);
        //* only needed this to query the plugin
        (*plugInInterface)->Release(plugInInterface);
        if (result || !dev) {
            DBG("ERR: Couldn't create a device interface (%08x)\n",
                (int) result);
            continue;
        }

        //* Now after all that, we actually have a ref to the device and
        //* the interface that matched our criteria

        kr = (*dev)->GetDeviceVendor(dev, &vendor);
        kr = (*dev)->GetDeviceProduct(dev, &product);
        kr = (*dev)->USBGetSerialNumberStringIndex(dev, &serialIndex);

if (serialIndex > 0) {
IOUSBDevRequest req;
UInt16 buffer[256];
UInt16 languages[128];

memset(languages, 0, sizeof(languages));

req.bmRequestType =
USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice);
req.bRequest = kUSBRqGetDescriptor;
req.wValue = (kUSBStringDesc << 8) | 0;
req.wIndex = 0;
req.pData = languages;
req.wLength = sizeof(languages);
kr = (*dev)->DeviceRequest(dev, &req);

if (kr == kIOReturnSuccess && req.wLenDone > 0) {

int langCount = (req.wLenDone - 2) / 2, lang;

for (lang = 1; lang <= langCount; lang++) {

                                memset(buffer, 0, sizeof(buffer));
                                memset(&req, 0, sizeof(req));

req.bmRequestType =
USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice);
req.bRequest = kUSBRqGetDescriptor;
req.wValue = (kUSBStringDesc << 8) | serialIndex;
req.wIndex = languages[lang];
req.pData = buffer;
req.wLength = sizeof(buffer);
kr = (*dev)->DeviceRequest(dev, &req);

if (kr == kIOReturnSuccess && req.wLenDone > 0) {
int i, count;

// skip first word, and copy the rest to the serial string,
// changing shorts to bytes.
count = (req.wLenDone - 1) / 2;
for (i = 0; i < count; i++)
serial[i] = buffer[i + 1];
serial[i] = 0;
                                        break;
}
}
}
}
        (*dev)->Release(dev);

        DBG("INFO: Found vid=%04x pid=%04x serial=%s\n", vendor, product,
            serial);

        usb_handle* handle = CheckInterface((IOUSBInterfaceInterface**)iface,
                                            vendor, product);
        if (handle == NULL) {
            DBG("ERR: Could not find device interface: %08x\n", kr);
            (*iface)->Release(iface);
            continue;
        }

        DBG("AndroidDeviceAdded calling register_usb_transport\n");
        register_usb_transport(handle, (serial[0] ? serial : NULL), 1);

        // Register for an interest notification of this device being removed.
        // Pass the reference to our private data as the refCon for the
        // notification.
        kr = IOServiceAddInterestNotification(notificationPort,
                usbInterface,
                kIOGeneralInterest,
                AndroidInterfaceNotify,
                handle,
                &handle->usbNotification);

        if (kIOReturnSuccess != kr) {
            DBG("ERR: Unable to create interest notification (%08x)\n", kr);
        }
    }
}

static void
AndroidInterfaceNotify(void *refCon, io_service_t service, natural_t messageType, void *messageArgument)
{
    usb_handle *handle = (usb_handle *)refCon;

    if (messageType == kIOMessageServiceIsTerminated) {
        if (!handle) {
            DBG("ERR: NULL handle\n");
            return;
        }
        DBG("AndroidInterfaceNotify\n");
        IOObjectRelease(handle->usbNotification);
        usb_kick(handle);
    }
}

//* TODO: simplify this further since we only register to get ADB interface
//* subclass+protocol events
static usb_handle*
CheckInterface(IOUSBInterfaceInterface **interface, UInt16 vendor, UInt16 product)
{
    usb_handle* handle = NULL;
    IOReturn kr;
    UInt8 interfaceNumEndpoints, interfaceClass, interfaceSubClass, interfaceProtocol;
    UInt8 endpoint;


    //* Now open the interface. This will cause the pipes associated with
    //* the endpoints in the interface descriptor to be instantiated
    kr = (*interface)->USBInterfaceOpen(interface);
    if (kr != kIOReturnSuccess) {
        DBG("ERR: Could not open interface: (%08x)\n", kr);
        return NULL;
    }

    //* Get the number of endpoints associated with this interface
    kr = (*interface)->GetNumEndpoints(interface, &interfaceNumEndpoints);
    if (kr != kIOReturnSuccess) {
        DBG("ERR: Unable to get number of endpoints: (%08x)\n", kr);
        goto err_get_num_ep;
    }

    //* Get interface class, subclass and protocol
    if ((*interface)->GetInterfaceClass(interface, &interfaceClass) != kIOReturnSuccess ||
            (*interface)->GetInterfaceSubClass(interface, &interfaceSubClass) != kIOReturnSuccess ||
            (*interface)->GetInterfaceProtocol(interface, &interfaceProtocol) != kIOReturnSuccess) {
            DBG("ERR: Unable to get interface class, subclass and protocol\n");
            goto err_get_interface_class;
    }

    //* check to make sure interface class, subclass and protocol match ADB
    //* avoid opening mass storage endpoints
    if (!is_adb_interface(vendor, product, interfaceClass,
                interfaceSubClass, interfaceProtocol))
        goto err_bad_adb_interface;

    handle = calloc(1, sizeof(usb_handle));

    //* Iterate over the endpoints for this interface and find the first
    //* bulk in/out pipes available. These will be our read/write pipes.
    for (endpoint = 0; endpoint <= interfaceNumEndpoints; endpoint++) {
        UInt8 transferType;
        UInt16 maxPacketSize;
        UInt8 interval;
        UInt8 number;
        UInt8 direction;

        kr = (*interface)->GetPipeProperties(interface, endpoint, &direction,
                &number, &transferType, &maxPacketSize, &interval);

        if (kIOReturnSuccess == kr) {
            if (kUSBBulk != transferType)
                continue;

            if (kUSBIn == direction)
                handle->bulkIn = endpoint;

            if (kUSBOut == direction)
                handle->bulkOut = endpoint;

            handle->zero_mask = maxPacketSize - 1;
        } else {
            DBG("ERR: FindDeviceInterface - could not get pipe properties\n");
            goto err_get_pipe_props;
        }
    }

    handle->interface = interface;
    return handle;

err_get_pipe_props:
    free(handle);
err_bad_adb_interface:
err_get_interface_class:
err_get_num_ep:
    (*interface)->USBInterfaceClose(interface);
    return NULL;
}


void* RunLoopThread(void* unused)
{
    unsigned i;

    InitUSB();

    currentRunLoop = CFRunLoopGetCurrent();

    // Signal the parent that we are running
    adb_mutex_lock(&start_lock);
    adb_cond_signal(&start_cond);
    adb_mutex_unlock(&start_lock);

    CFRunLoopRun();
    currentRunLoop = 0;

    for (i = 0; i < vendorIdCount; i++) {
        IOObjectRelease(notificationIterators[i]);
    }
    IONotificationPortDestroy(notificationPort);

    DBG("RunLoopThread done\n");
    return NULL;
}


static int initialized = 0;
void usb_init()
{
    if (!initialized)
    {
        adb_thread_t tid;

        notificationIterators = (io_iterator_t*)malloc(
            vendorIdCount * sizeof(io_iterator_t));

        adb_mutex_init(&start_lock, NULL);
        adb_cond_init(&start_cond, NULL);

        if(adb_thread_create(&tid, RunLoopThread, NULL))
            fatal_errno("cannot create input thread");

        // Wait for initialization to finish
        adb_mutex_lock(&start_lock);
        adb_cond_wait(&start_cond, &start_lock);
        adb_mutex_unlock(&start_lock);

        adb_mutex_destroy(&start_lock);
        adb_cond_destroy(&start_cond);

        initialized = 1;
    }
}

void usb_cleanup()
{
    DBG("usb_cleanup\n");
    close_usb_devices();
    if (currentRunLoop)
        CFRunLoopStop(currentRunLoop);

    if (notificationIterators != NULL) {
        free(notificationIterators);
        notificationIterators = NULL;
    }
}

int usb_write(usb_handle *handle, const void *buf, int len)
{
    IOReturn result;

    if (!len)
        return 0;

    if (!handle)
        return -1;

    if (NULL == handle->interface) {
        DBG("ERR: usb_write interface was null\n");
        return -1;
    }

    if (0 == handle->bulkOut) {
        DBG("ERR: bulkOut endpoint not assigned\n");
        return -1;
    }

    result =
        (*handle->interface)->WritePipe(
                              handle->interface, handle->bulkOut, (void *)buf, len);

    if ((result == 0) && (handle->zero_mask)) {
        /* we need 0-markers and our transfer */
        if(!(len & handle->zero_mask)) {
            result =
                (*handle->interface)->WritePipe(
                        handle->interface, handle->bulkOut, (void *)buf, 0);
        }
    }

    if (0 == result)
        return 0;

    DBG("ERR: usb_write failed with status %d\n", result);
    return -1;
}

int usb_read(usb_handle *handle, void *buf, int len)
{
    IOReturn result;
    UInt32 numBytes = len;

    if (!len) {
        return 0;
    }

    if (!handle) {
        return -1;
    }

    if (NULL == handle->interface) {
        DBG("ERR: usb_read interface was null\n");
        return -1;
    }

    if (0 == handle->bulkIn) {
        DBG("ERR: bulkIn endpoint not assigned\n");
        return -1;
    }

    result =
      (*handle->interface)->ReadPipe(handle->interface,
                                    handle->bulkIn, buf, &numBytes);

    if (0 == result)
        return 0;
    else {
        DBG("ERR: usb_read failed with status %d\n", result);
    }

    return -1;
}

int usb_close(usb_handle *handle)
{
    return 0;
}

void usb_kick(usb_handle *handle)
{
    /* release the interface */
    if (!handle)
        return;

    if (handle->interface)
    {
        (*handle->interface)->USBInterfaceClose(handle->interface);
        (*handle->interface)->Release(handle->interface);
        handle->interface = 0;
    }
}
Something went wrong with that request. Please try again.