The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <windows.h> |
| 30 | #include <winerror.h> |
| 31 | #include <errno.h> |
| 32 | #include <usb100.h> |
| 33 | #include <adb_api.h> |
| 34 | #include <stdio.h> |
| 35 | |
| 36 | #include "usb.h" |
| 37 | |
| 38 | //#define TRACE_USB 1 |
| 39 | #if TRACE_USB |
| 40 | #define DBG(x...) fprintf(stderr, x) |
| 41 | #else |
| 42 | #define DBG(x...) |
| 43 | #endif |
| 44 | |
| 45 | |
| 46 | /** Structure usb_handle describes our connection to the usb device via |
| 47 | AdbWinApi.dll. This structure is returned from usb_open() routine and |
| 48 | is expected in each subsequent call that is accessing the device. |
| 49 | */ |
| 50 | struct usb_handle { |
| 51 | /// Handle to USB interface |
| 52 | ADBAPIHANDLE adb_interface; |
| 53 | |
| 54 | /// Handle to USB read pipe (endpoint) |
| 55 | ADBAPIHANDLE adb_read_pipe; |
| 56 | |
| 57 | /// Handle to USB write pipe (endpoint) |
| 58 | ADBAPIHANDLE adb_write_pipe; |
| 59 | |
| 60 | /// Interface name |
| 61 | char* interface_name; |
| 62 | }; |
| 63 | |
| 64 | /// Class ID assigned to the device by androidusb.sys |
| 65 | static const GUID usb_class_id = ANDROID_USB_CLASS_ID; |
| 66 | |
| 67 | |
| 68 | /// Checks if interface (device) matches certain criteria |
| 69 | int recognized_device(usb_handle* handle, ifc_match_func callback); |
| 70 | |
| 71 | /// Opens usb interface (device) by interface (device) name. |
| 72 | usb_handle* do_usb_open(const wchar_t* interface_name); |
| 73 | |
| 74 | /// Writes data to the opened usb handle |
| 75 | int usb_write(usb_handle* handle, const void* data, int len); |
| 76 | |
| 77 | /// Reads data using the opened usb handle |
| 78 | int usb_read(usb_handle *handle, void* data, int len); |
| 79 | |
| 80 | /// Cleans up opened usb handle |
| 81 | void usb_cleanup_handle(usb_handle* handle); |
| 82 | |
| 83 | /// Cleans up (but don't close) opened usb handle |
| 84 | void usb_kick(usb_handle* handle); |
| 85 | |
| 86 | /// Closes opened usb handle |
| 87 | int usb_close(usb_handle* handle); |
| 88 | |
| 89 | |
| 90 | usb_handle* do_usb_open(const wchar_t* interface_name) { |
| 91 | // Allocate our handle |
| 92 | usb_handle* ret = (usb_handle*)malloc(sizeof(usb_handle)); |
| 93 | if (NULL == ret) |
| 94 | return NULL; |
| 95 | |
| 96 | // Create interface. |
| 97 | ret->adb_interface = AdbCreateInterfaceByName(interface_name); |
| 98 | |
| 99 | if (NULL == ret->adb_interface) { |
| 100 | free(ret); |
| 101 | errno = GetLastError(); |
| 102 | return NULL; |
| 103 | } |
| 104 | |
| 105 | // Open read pipe (endpoint) |
| 106 | ret->adb_read_pipe = |
| 107 | AdbOpenDefaultBulkReadEndpoint(ret->adb_interface, |
| 108 | AdbOpenAccessTypeReadWrite, |
| 109 | AdbOpenSharingModeReadWrite); |
| 110 | if (NULL != ret->adb_read_pipe) { |
| 111 | // Open write pipe (endpoint) |
| 112 | ret->adb_write_pipe = |
| 113 | AdbOpenDefaultBulkWriteEndpoint(ret->adb_interface, |
| 114 | AdbOpenAccessTypeReadWrite, |
| 115 | AdbOpenSharingModeReadWrite); |
| 116 | if (NULL != ret->adb_write_pipe) { |
| 117 | // Save interface name |
| 118 | unsigned long name_len = 0; |
| 119 | |
| 120 | // First get expected name length |
| 121 | AdbGetInterfaceName(ret->adb_interface, |
| 122 | NULL, |
| 123 | &name_len, |
| 124 | true); |
| 125 | if (0 != name_len) { |
| 126 | ret->interface_name = (char*)malloc(name_len); |
| 127 | |
| 128 | if (NULL != ret->interface_name) { |
| 129 | // Now save the name |
| 130 | if (AdbGetInterfaceName(ret->adb_interface, |
| 131 | ret->interface_name, |
| 132 | &name_len, |
| 133 | true)) { |
| 134 | // We're done at this point |
| 135 | return ret; |
| 136 | } |
| 137 | } else { |
| 138 | SetLastError(ERROR_OUTOFMEMORY); |
| 139 | } |
| 140 | } |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | // Something went wrong. |
| 145 | errno = GetLastError(); |
| 146 | usb_cleanup_handle(ret); |
| 147 | free(ret); |
| 148 | SetLastError(errno); |
| 149 | |
| 150 | return NULL; |
| 151 | } |
| 152 | |
| 153 | int usb_write(usb_handle* handle, const void* data, int len) { |
| 154 | unsigned long time_out = 500 + len * 8; |
| 155 | unsigned long written = 0; |
| 156 | unsigned count = 0; |
| 157 | int ret; |
| 158 | |
| 159 | DBG("usb_write %d\n", len); |
| 160 | if (NULL != handle) { |
| 161 | // Perform write |
| 162 | while(len > 0) { |
| 163 | int xfer = (len > 4096) ? 4096 : len; |
| 164 | ret = AdbWriteEndpointSync(handle->adb_write_pipe, |
| 165 | (void*)data, |
| 166 | (unsigned long)xfer, |
| 167 | &written, |
| 168 | time_out); |
| 169 | errno = GetLastError(); |
| 170 | DBG("AdbWriteEndpointSync returned %d, errno: %d\n", ret, errno); |
| 171 | if (ret == 0) { |
| 172 | // assume ERROR_INVALID_HANDLE indicates we are disconnected |
| 173 | if (errno == ERROR_INVALID_HANDLE) |
| 174 | usb_kick(handle); |
| 175 | return -1; |
| 176 | } |
| 177 | |
| 178 | count += written; |
| 179 | len -= written; |
| 180 | data += written; |
| 181 | |
| 182 | if (len == 0) |
| 183 | return count; |
| 184 | } |
| 185 | } else { |
| 186 | DBG("usb_write NULL handle\n"); |
| 187 | SetLastError(ERROR_INVALID_HANDLE); |
| 188 | } |
| 189 | |
| 190 | DBG("usb_write failed: %d\n", errno); |
| 191 | |
| 192 | return -1; |
| 193 | } |
| 194 | |
| 195 | int usb_read(usb_handle *handle, void* data, int len) { |
| 196 | unsigned long time_out = 500 + len * 8; |
| 197 | unsigned long read = 0; |
| 198 | int ret; |
| 199 | |
| 200 | DBG("usb_read %d\n", len); |
| 201 | if (NULL != handle) { |
| 202 | while (1) { |
| 203 | int xfer = (len > 4096) ? 4096 : len; |
| 204 | |
| 205 | ret = AdbReadEndpointSync(handle->adb_read_pipe, |
| 206 | (void*)data, |
| 207 | (unsigned long)xfer, |
| 208 | &read, |
| 209 | time_out); |
| 210 | errno = GetLastError(); |
| 211 | DBG("usb_read got: %ld, expected: %d, errno: %d\n", read, xfer, errno); |
| 212 | if (ret) { |
| 213 | return read; |
| 214 | } else if (errno != ERROR_SEM_TIMEOUT) { |
| 215 | // assume ERROR_INVALID_HANDLE indicates we are disconnected |
| 216 | if (errno == ERROR_INVALID_HANDLE) |
| 217 | usb_kick(handle); |
| 218 | break; |
| 219 | } |
| 220 | // else we timed out - try again |
| 221 | } |
| 222 | } else { |
| 223 | DBG("usb_read NULL handle\n"); |
| 224 | SetLastError(ERROR_INVALID_HANDLE); |
| 225 | } |
| 226 | |
| 227 | DBG("usb_read failed: %d\n", errno); |
| 228 | |
| 229 | return -1; |
| 230 | } |
| 231 | |
| 232 | void usb_cleanup_handle(usb_handle* handle) { |
| 233 | if (NULL != handle) { |
| 234 | if (NULL != handle->interface_name) |
| 235 | free(handle->interface_name); |
| 236 | if (NULL != handle->adb_write_pipe) |
| 237 | AdbCloseHandle(handle->adb_write_pipe); |
| 238 | if (NULL != handle->adb_read_pipe) |
| 239 | AdbCloseHandle(handle->adb_read_pipe); |
| 240 | if (NULL != handle->adb_interface) |
| 241 | AdbCloseHandle(handle->adb_interface); |
| 242 | |
| 243 | handle->interface_name = NULL; |
| 244 | handle->adb_write_pipe = NULL; |
| 245 | handle->adb_read_pipe = NULL; |
| 246 | handle->adb_interface = NULL; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | void usb_kick(usb_handle* handle) { |
| 251 | if (NULL != handle) { |
| 252 | usb_cleanup_handle(handle); |
| 253 | } else { |
| 254 | SetLastError(ERROR_INVALID_HANDLE); |
| 255 | errno = ERROR_INVALID_HANDLE; |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | int usb_close(usb_handle* handle) { |
| 260 | DBG("usb_close\n"); |
| 261 | |
| 262 | if (NULL != handle) { |
| 263 | // Cleanup handle |
| 264 | usb_cleanup_handle(handle); |
| 265 | free(handle); |
| 266 | } |
| 267 | |
| 268 | return 0; |
| 269 | } |
| 270 | |
| 271 | int recognized_device(usb_handle* handle, ifc_match_func callback) { |
| 272 | struct usb_ifc_info info; |
| 273 | USB_DEVICE_DESCRIPTOR device_desc; |
| 274 | USB_INTERFACE_DESCRIPTOR interf_desc; |
| 275 | |
| 276 | if (NULL == handle) |
| 277 | return 0; |
| 278 | |
| 279 | // Check vendor and product id first |
| 280 | if (!AdbGetUsbDeviceDescriptor(handle->adb_interface, |
| 281 | &device_desc)) { |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | // Then check interface properties |
| 286 | if (!AdbGetUsbInterfaceDescriptor(handle->adb_interface, |
| 287 | &interf_desc)) { |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | // Must have two endpoints |
| 292 | if (2 != interf_desc.bNumEndpoints) { |
| 293 | return 0; |
| 294 | } |
| 295 | |
| 296 | info.dev_vendor = device_desc.idVendor; |
| 297 | info.dev_product = device_desc.idProduct; |
| 298 | info.dev_class = device_desc.bDeviceClass; |
| 299 | info.dev_subclass = device_desc.bDeviceSubClass; |
| 300 | info.dev_protocol = device_desc.bDeviceProtocol; |
| 301 | info.ifc_class = interf_desc.bInterfaceClass; |
| 302 | info.ifc_subclass = interf_desc.bInterfaceSubClass; |
| 303 | info.ifc_protocol = interf_desc.bInterfaceProtocol; |
| 304 | |
| 305 | // read serial number (if there is one) |
| 306 | unsigned long serial_number_len = sizeof(info.serial_number); |
| 307 | if (!AdbGetSerialNumber(handle->adb_interface, info.serial_number, |
| 308 | &serial_number_len, true)) { |
| 309 | info.serial_number[0] = 0; |
| 310 | } |
| 311 | |
| 312 | if (callback(&info) == 0) { |
| 313 | return 1; |
| 314 | } |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static usb_handle *find_usb_device(ifc_match_func callback) { |
| 320 | usb_handle* handle = NULL; |
| 321 | char entry_buffer[2048]; |
| 322 | char interf_name[2048]; |
| 323 | AdbInterfaceInfo* next_interface = (AdbInterfaceInfo*)(&entry_buffer[0]); |
| 324 | unsigned long entry_buffer_size = sizeof(entry_buffer); |
| 325 | char* copy_name; |
| 326 | |
| 327 | // Enumerate all present and active interfaces. |
| 328 | ADBAPIHANDLE enum_handle = |
| 329 | AdbEnumInterfaces(usb_class_id, true, true, true); |
| 330 | |
| 331 | if (NULL == enum_handle) |
| 332 | return NULL; |
| 333 | |
| 334 | while (AdbNextInterface(enum_handle, next_interface, &entry_buffer_size)) { |
| 335 | // TODO(vchtchetkine): FIXME - temp hack converting wchar_t into char. |
| 336 | // It would be better to change AdbNextInterface so it will return |
| 337 | // interface name as single char string. |
| 338 | const wchar_t* wchar_name = next_interface->device_name; |
| 339 | for(copy_name = interf_name; |
| 340 | L'\0' != *wchar_name; |
| 341 | wchar_name++, copy_name++) { |
| 342 | *copy_name = (char)(*wchar_name); |
| 343 | } |
| 344 | *copy_name = '\0'; |
| 345 | |
| 346 | handle = do_usb_open(next_interface->device_name); |
| 347 | if (NULL != handle) { |
| 348 | // Lets see if this interface (device) belongs to us |
| 349 | if (recognized_device(handle, callback)) { |
| 350 | // found it! |
| 351 | break; |
| 352 | } else { |
| 353 | usb_cleanup_handle(handle); |
| 354 | free(handle); |
| 355 | handle = NULL; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | entry_buffer_size = sizeof(entry_buffer); |
| 360 | } |
| 361 | |
| 362 | AdbCloseHandle(enum_handle); |
| 363 | return handle; |
| 364 | } |
| 365 | |
| 366 | usb_handle *usb_open(ifc_match_func callback) |
| 367 | { |
| 368 | return find_usb_device(callback); |
| 369 | } |
| 370 | |
| 371 | // called from fastboot.c |
| 372 | void sleep(int seconds) |
| 373 | { |
| 374 | Sleep(seconds * 1000); |
| 375 | } |