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Commit | Line | Data |
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e33dcf90 ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
48a4076f | 4 | * Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li> |
e33dcf90 ML |
5 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Lesser General Public License as | |
9 | * published by the Free Software Foundation, either version 3 of the | |
10 | * License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
1a584c45 | 21 | #include <config.h> |
e33dcf90 ML |
22 | #include "libserialport.h" |
23 | #include "libserialport_internal.h" | |
24 | ||
dc422c04 UH |
25 | /* USB path is a string of at most 8 decimal numbers < 128 separated by dots. */ |
26 | #define MAX_USB_PATH ((8 * 3) + (7 * 1) + 1) | |
e33dcf90 | 27 | |
eb50b1ac | 28 | static void enumerate_hub(struct sp_port *port, const char *hub_name, |
02c8a142 | 29 | const char *parent_path, DEVINST dev_inst); |
e33dcf90 ML |
30 | |
31 | static char *wc_to_utf8(PWCHAR wc_buffer, ULONG size) | |
32 | { | |
dc422c04 | 33 | WCHAR wc_str[(size / sizeof(WCHAR)) + 1]; |
e33dcf90 ML |
34 | char *utf8_str; |
35 | ||
dc422c04 | 36 | /* Zero-terminate the wide char string. */ |
e33dcf90 | 37 | memcpy(wc_str, wc_buffer, size); |
dc422c04 | 38 | wc_str[sizeof(wc_str) - 1] = 0; |
e33dcf90 | 39 | |
dc422c04 | 40 | /* Compute the size of the UTF-8 converted string. */ |
e33dcf90 ML |
41 | if (!(size = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1, |
42 | NULL, 0, NULL, NULL))) | |
43 | return NULL; | |
44 | ||
dc422c04 | 45 | /* Allocate UTF-8 output buffer. */ |
e33dcf90 ML |
46 | if (!(utf8_str = malloc(size))) |
47 | return NULL; | |
48 | ||
dc422c04 | 49 | /* Actually converted to UTF-8. */ |
e33dcf90 ML |
50 | if (!WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1, |
51 | utf8_str, size, NULL, NULL)) { | |
52 | free(utf8_str); | |
53 | return NULL; | |
54 | } | |
55 | ||
56 | return utf8_str; | |
57 | } | |
58 | ||
59 | static char *get_root_hub_name(HANDLE host_controller) | |
60 | { | |
dc422c04 | 61 | USB_ROOT_HUB_NAME root_hub_name; |
e33dcf90 ML |
62 | PUSB_ROOT_HUB_NAME root_hub_name_wc; |
63 | char *root_hub_name_utf8; | |
64 | ULONG size = 0; | |
65 | ||
dc422c04 | 66 | /* Compute the size of the root hub name string. */ |
e33dcf90 ML |
67 | if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME, 0, 0, |
68 | &root_hub_name, sizeof(root_hub_name), &size, NULL)) | |
69 | return NULL; | |
70 | ||
dc422c04 | 71 | /* Allocate wide char root hub name string. */ |
e33dcf90 ML |
72 | size = root_hub_name.ActualLength; |
73 | if (!(root_hub_name_wc = malloc(size))) | |
74 | return NULL; | |
75 | ||
dc422c04 | 76 | /* Actually get the root hub name string. */ |
e33dcf90 ML |
77 | if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME, |
78 | NULL, 0, root_hub_name_wc, size, &size, NULL)) { | |
79 | free(root_hub_name_wc); | |
80 | return NULL; | |
81 | } | |
82 | ||
dc422c04 | 83 | /* Convert the root hub name string to UTF-8. */ |
e33dcf90 ML |
84 | root_hub_name_utf8 = wc_to_utf8(root_hub_name_wc->RootHubName, size); |
85 | free(root_hub_name_wc); | |
86 | return root_hub_name_utf8; | |
87 | } | |
88 | ||
89 | static char *get_external_hub_name(HANDLE hub, ULONG connection_index) | |
90 | { | |
dc422c04 | 91 | USB_NODE_CONNECTION_NAME ext_hub_name; |
e33dcf90 ML |
92 | PUSB_NODE_CONNECTION_NAME ext_hub_name_wc; |
93 | char *ext_hub_name_utf8; | |
94 | ULONG size; | |
95 | ||
dc422c04 | 96 | /* Compute the size of the external hub name string. */ |
e33dcf90 ML |
97 | ext_hub_name.ConnectionIndex = connection_index; |
98 | if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME, | |
99 | &ext_hub_name, sizeof(ext_hub_name), | |
100 | &ext_hub_name, sizeof(ext_hub_name), &size, NULL)) | |
101 | return NULL; | |
102 | ||
dc422c04 | 103 | /* Allocate wide char external hub name string. */ |
e33dcf90 ML |
104 | size = ext_hub_name.ActualLength; |
105 | if (size <= sizeof(ext_hub_name) | |
106 | || !(ext_hub_name_wc = malloc(size))) | |
107 | return NULL; | |
108 | ||
dc422c04 | 109 | /* Get the name of the external hub attached to the specified port. */ |
e33dcf90 ML |
110 | ext_hub_name_wc->ConnectionIndex = connection_index; |
111 | if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME, | |
112 | ext_hub_name_wc, size, | |
113 | ext_hub_name_wc, size, &size, NULL)) { | |
114 | free(ext_hub_name_wc); | |
115 | return NULL; | |
116 | } | |
117 | ||
dc422c04 | 118 | /* Convert the external hub name string to UTF-8. */ |
e33dcf90 ML |
119 | ext_hub_name_utf8 = wc_to_utf8(ext_hub_name_wc->NodeName, size); |
120 | free(ext_hub_name_wc); | |
121 | return ext_hub_name_utf8; | |
122 | } | |
123 | ||
124 | static char *get_string_descriptor(HANDLE hub_device, ULONG connection_index, | |
125 | UCHAR descriptor_index) | |
126 | { | |
127 | char desc_req_buf[sizeof(USB_DESCRIPTOR_REQUEST) + | |
128 | MAXIMUM_USB_STRING_LENGTH] = { 0 }; | |
dc422c04 UH |
129 | PUSB_DESCRIPTOR_REQUEST desc_req = (void *)desc_req_buf; |
130 | PUSB_STRING_DESCRIPTOR desc = (void *)(desc_req + 1); | |
e33dcf90 ML |
131 | ULONG size = sizeof(desc_req_buf); |
132 | ||
dc422c04 UH |
133 | desc_req->ConnectionIndex = connection_index; |
134 | desc_req->SetupPacket.wValue = (USB_STRING_DESCRIPTOR_TYPE << 8) | |
135 | | descriptor_index; | |
136 | desc_req->SetupPacket.wIndex = 0; | |
e33dcf90 ML |
137 | desc_req->SetupPacket.wLength = size - sizeof(*desc_req); |
138 | ||
139 | if (!DeviceIoControl(hub_device, | |
140 | IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, | |
141 | desc_req, size, desc_req, size, &size, NULL) | |
142 | || size < 2 | |
143 | || desc->bDescriptorType != USB_STRING_DESCRIPTOR_TYPE | |
144 | || desc->bLength != size - sizeof(*desc_req) | |
145 | || desc->bLength % 2) | |
146 | return NULL; | |
147 | ||
148 | return wc_to_utf8(desc->bString, desc->bLength); | |
149 | } | |
150 | ||
151 | static void enumerate_hub_ports(struct sp_port *port, HANDLE hub_device, | |
02c8a142 | 152 | ULONG nb_ports, const char *parent_path, DEVINST dev_inst) |
e33dcf90 ML |
153 | { |
154 | char path[MAX_USB_PATH]; | |
155 | ULONG index = 0; | |
156 | ||
157 | for (index = 1; index <= nb_ports; index++) { | |
158 | PUSB_NODE_CONNECTION_INFORMATION_EX connection_info_ex; | |
dc422c04 | 159 | ULONG size = sizeof(*connection_info_ex) + (30 * sizeof(USB_PIPE_INFO)); |
e33dcf90 ML |
160 | |
161 | if (!(connection_info_ex = malloc(size))) | |
162 | break; | |
163 | ||
164 | connection_info_ex->ConnectionIndex = index; | |
165 | if (!DeviceIoControl(hub_device, | |
166 | IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX, | |
167 | connection_info_ex, size, | |
168 | connection_info_ex, size, &size, NULL)) { | |
dc422c04 UH |
169 | /* |
170 | * Try to get CONNECTION_INFORMATION if | |
171 | * CONNECTION_INFORMATION_EX did not work. | |
172 | */ | |
e33dcf90 ML |
173 | PUSB_NODE_CONNECTION_INFORMATION connection_info; |
174 | ||
dc422c04 | 175 | size = sizeof(*connection_info) + (30 * sizeof(USB_PIPE_INFO)); |
e33dcf90 ML |
176 | if (!(connection_info = malloc(size))) { |
177 | free(connection_info_ex); | |
178 | continue; | |
179 | } | |
180 | connection_info->ConnectionIndex = index; | |
181 | if (!DeviceIoControl(hub_device, | |
182 | IOCTL_USB_GET_NODE_CONNECTION_INFORMATION, | |
183 | connection_info, size, | |
184 | connection_info, size, &size, NULL)) { | |
185 | free(connection_info); | |
186 | free(connection_info_ex); | |
187 | continue; | |
188 | } | |
189 | ||
190 | connection_info_ex->ConnectionIndex = connection_info->ConnectionIndex; | |
191 | connection_info_ex->DeviceDescriptor = connection_info->DeviceDescriptor; | |
192 | connection_info_ex->DeviceIsHub = connection_info->DeviceIsHub; | |
193 | connection_info_ex->DeviceAddress = connection_info->DeviceAddress; | |
194 | free(connection_info); | |
195 | } | |
196 | ||
197 | if (connection_info_ex->DeviceIsHub) { | |
dc422c04 | 198 | /* Recursively enumerate external hub. */ |
e33dcf90 ML |
199 | PCHAR ext_hub_name; |
200 | if ((ext_hub_name = get_external_hub_name(hub_device, index))) { | |
201 | snprintf(path, sizeof(path), "%s%ld.", | |
202 | parent_path, connection_info_ex->ConnectionIndex); | |
02c8a142 | 203 | enumerate_hub(port, ext_hub_name, path, dev_inst); |
e33dcf90 ML |
204 | } |
205 | free(connection_info_ex); | |
206 | } else { | |
207 | snprintf(path, sizeof(path), "%s%ld", | |
208 | parent_path, connection_info_ex->ConnectionIndex); | |
209 | ||
dc422c04 | 210 | /* Check if this device is the one we search for. */ |
e33dcf90 ML |
211 | if (strcmp(path, port->usb_path)) { |
212 | free(connection_info_ex); | |
213 | continue; | |
214 | } | |
215 | ||
dc422c04 | 216 | /* Finally grab detailed information regarding the device. */ |
e33dcf90 ML |
217 | port->usb_address = connection_info_ex->DeviceAddress + 1; |
218 | port->usb_vid = connection_info_ex->DeviceDescriptor.idVendor; | |
219 | port->usb_pid = connection_info_ex->DeviceDescriptor.idProduct; | |
220 | ||
221 | if (connection_info_ex->DeviceDescriptor.iManufacturer) | |
222 | port->usb_manufacturer = get_string_descriptor(hub_device,index, | |
223 | connection_info_ex->DeviceDescriptor.iManufacturer); | |
224 | if (connection_info_ex->DeviceDescriptor.iProduct) | |
225 | port->usb_product = get_string_descriptor(hub_device, index, | |
226 | connection_info_ex->DeviceDescriptor.iProduct); | |
02c8a142 | 227 | if (connection_info_ex->DeviceDescriptor.iSerialNumber) { |
e33dcf90 ML |
228 | port->usb_serial = get_string_descriptor(hub_device, index, |
229 | connection_info_ex->DeviceDescriptor.iSerialNumber); | |
02c8a142 MF |
230 | if (port->usb_serial == NULL) { |
231 | //composite device, get the parent's serial number | |
232 | char device_id[MAX_DEVICE_ID_LEN]; | |
233 | if (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS) { | |
234 | if (CM_Get_Device_IDA(dev_inst, device_id, sizeof(device_id), 0) == CR_SUCCESS) | |
235 | port->usb_serial = strdup(strrchr(device_id, '\\')+1); | |
236 | } | |
237 | } | |
238 | } | |
e33dcf90 ML |
239 | |
240 | free(connection_info_ex); | |
241 | break; | |
242 | } | |
243 | } | |
244 | } | |
245 | ||
eb50b1ac | 246 | static void enumerate_hub(struct sp_port *port, const char *hub_name, |
02c8a142 | 247 | const char *parent_path, DEVINST dev_inst) |
e33dcf90 ML |
248 | { |
249 | USB_NODE_INFORMATION hub_info; | |
250 | HANDLE hub_device; | |
251 | ULONG size = sizeof(hub_info); | |
252 | char *device_name; | |
253 | ||
dc422c04 | 254 | /* Open the hub with its full name. */ |
e33dcf90 ML |
255 | if (!(device_name = malloc(strlen("\\\\.\\") + strlen(hub_name) + 1))) |
256 | return; | |
257 | strcpy(device_name, "\\\\.\\"); | |
258 | strcat(device_name, hub_name); | |
259 | hub_device = CreateFile(device_name, GENERIC_WRITE, FILE_SHARE_WRITE, | |
260 | NULL, OPEN_EXISTING, 0, NULL); | |
261 | free(device_name); | |
262 | if (hub_device == INVALID_HANDLE_VALUE) | |
263 | return; | |
264 | ||
dc422c04 | 265 | /* Get the number of ports of the hub. */ |
e33dcf90 ML |
266 | if (DeviceIoControl(hub_device, IOCTL_USB_GET_NODE_INFORMATION, |
267 | &hub_info, size, &hub_info, size, &size, NULL)) | |
dc422c04 | 268 | /* Enumerate the ports of the hub. */ |
e33dcf90 | 269 | enumerate_hub_ports(port, hub_device, |
02c8a142 | 270 | hub_info.u.HubInformation.HubDescriptor.bNumberOfPorts, parent_path, dev_inst); |
e33dcf90 ML |
271 | |
272 | CloseHandle(hub_device); | |
273 | } | |
274 | ||
275 | static void enumerate_host_controller(struct sp_port *port, | |
02c8a142 MF |
276 | HANDLE host_controller_device, |
277 | DEVINST dev_inst) | |
e33dcf90 ML |
278 | { |
279 | char *root_hub_name; | |
280 | ||
281 | if ((root_hub_name = get_root_hub_name(host_controller_device))) { | |
02c8a142 | 282 | enumerate_hub(port, root_hub_name, "", dev_inst); |
e33dcf90 ML |
283 | free(root_hub_name); |
284 | } | |
285 | } | |
286 | ||
287 | static void get_usb_details(struct sp_port *port, DEVINST dev_inst_match) | |
288 | { | |
289 | HDEVINFO device_info; | |
290 | SP_DEVINFO_DATA device_info_data; | |
291 | ULONG i, size = 0; | |
292 | ||
dc422c04 | 293 | device_info = SetupDiGetClassDevs(&GUID_CLASS_USB_HOST_CONTROLLER, NULL, NULL, |
e33dcf90 ML |
294 | DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); |
295 | device_info_data.cbSize = sizeof(device_info_data); | |
296 | ||
dc422c04 | 297 | for (i = 0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) { |
e33dcf90 ML |
298 | SP_DEVICE_INTERFACE_DATA device_interface_data; |
299 | PSP_DEVICE_INTERFACE_DETAIL_DATA device_detail_data; | |
300 | DEVINST dev_inst = dev_inst_match; | |
301 | HANDLE host_controller_device; | |
302 | ||
303 | device_interface_data.cbSize = sizeof(device_interface_data); | |
304 | if (!SetupDiEnumDeviceInterfaces(device_info, 0, | |
305 | &GUID_CLASS_USB_HOST_CONTROLLER, | |
306 | i, &device_interface_data)) | |
307 | continue; | |
308 | ||
309 | if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data, | |
310 | NULL, 0, &size, NULL) | |
311 | && GetLastError() != ERROR_INSUFFICIENT_BUFFER) | |
312 | continue; | |
313 | ||
314 | if (!(device_detail_data = malloc(size))) | |
315 | continue; | |
316 | device_detail_data->cbSize = sizeof(*device_detail_data); | |
317 | if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data, | |
318 | device_detail_data, size, &size, | |
319 | NULL)) { | |
320 | free(device_detail_data); | |
321 | continue; | |
322 | } | |
323 | ||
324 | while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS | |
325 | && dev_inst != device_info_data.DevInst) { } | |
326 | if (dev_inst != device_info_data.DevInst) { | |
327 | free(device_detail_data); | |
328 | continue; | |
329 | } | |
330 | ||
331 | port->usb_bus = i + 1; | |
332 | ||
333 | host_controller_device = CreateFile(device_detail_data->DevicePath, | |
334 | GENERIC_WRITE, FILE_SHARE_WRITE, | |
335 | NULL, OPEN_EXISTING, 0, NULL); | |
336 | if (host_controller_device != INVALID_HANDLE_VALUE) { | |
02c8a142 | 337 | enumerate_host_controller(port, host_controller_device, dev_inst_match); |
e33dcf90 ML |
338 | CloseHandle(host_controller_device); |
339 | } | |
340 | free(device_detail_data); | |
341 | } | |
342 | ||
343 | SetupDiDestroyDeviceInfoList(device_info); | |
344 | return; | |
345 | } | |
346 | ||
970f279a | 347 | SP_PRIV enum sp_return get_port_details(struct sp_port *port) |
e33dcf90 | 348 | { |
dc422c04 UH |
349 | /* |
350 | * Description limited to 127 char, anything longer | |
351 | * would not be user friendly anyway. | |
352 | */ | |
e33dcf90 ML |
353 | char description[128]; |
354 | SP_DEVINFO_DATA device_info_data = { .cbSize = sizeof(device_info_data) }; | |
355 | HDEVINFO device_info; | |
356 | int i; | |
357 | ||
358 | device_info = SetupDiGetClassDevs(NULL, 0, 0, | |
359 | DIGCF_PRESENT | DIGCF_ALLCLASSES); | |
360 | if (device_info == INVALID_HANDLE_VALUE) | |
361 | RETURN_FAIL("SetupDiGetClassDevs() failed"); | |
362 | ||
dc422c04 | 363 | for (i = 0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) { |
e33dcf90 ML |
364 | HKEY device_key; |
365 | DEVINST dev_inst; | |
366 | char value[8], class[16]; | |
367 | DWORD size, type; | |
368 | CONFIGRET cr; | |
369 | ||
dc422c04 | 370 | /* Check if this is the device we are looking for. */ |
b328a48b AJ |
371 | device_key = SetupDiOpenDevRegKey(device_info, &device_info_data, |
372 | DICS_FLAG_GLOBAL, 0, | |
373 | DIREG_DEV, KEY_QUERY_VALUE); | |
374 | if (device_key == INVALID_HANDLE_VALUE) | |
e33dcf90 ML |
375 | continue; |
376 | size = sizeof(value); | |
377 | if (RegQueryValueExA(device_key, "PortName", NULL, &type, (LPBYTE)value, | |
7aeb6736 AJ |
378 | &size) != ERROR_SUCCESS || type != REG_SZ) { |
379 | RegCloseKey(device_key); | |
e33dcf90 | 380 | continue; |
7aeb6736 | 381 | } |
e33dcf90 ML |
382 | RegCloseKey(device_key); |
383 | value[sizeof(value)-1] = 0; | |
384 | if (strcmp(value, port->name)) | |
385 | continue; | |
386 | ||
dc422c04 | 387 | /* Check port transport type. */ |
e33dcf90 ML |
388 | dev_inst = device_info_data.DevInst; |
389 | size = sizeof(class); | |
390 | cr = CR_FAILURE; | |
391 | while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS && | |
392 | (cr = CM_Get_DevNode_Registry_PropertyA(dev_inst, | |
393 | CM_DRP_CLASS, 0, class, &size, 0)) != CR_SUCCESS) { } | |
394 | if (cr == CR_SUCCESS) { | |
395 | if (!strcmp(class, "USB")) | |
396 | port->transport = SP_TRANSPORT_USB; | |
397 | } | |
398 | ||
dc422c04 | 399 | /* Get port description (friendly name). */ |
e33dcf90 ML |
400 | dev_inst = device_info_data.DevInst; |
401 | size = sizeof(description); | |
402 | while ((cr = CM_Get_DevNode_Registry_PropertyA(dev_inst, | |
403 | CM_DRP_FRIENDLYNAME, 0, description, &size, 0)) != CR_SUCCESS | |
404 | && CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS) { } | |
405 | if (cr == CR_SUCCESS) | |
406 | port->description = strdup(description); | |
407 | ||
dc422c04 | 408 | /* Get more informations for USB connected ports. */ |
e33dcf90 ML |
409 | if (port->transport == SP_TRANSPORT_USB) { |
410 | char usb_path[MAX_USB_PATH] = "", tmp[MAX_USB_PATH]; | |
411 | char device_id[MAX_DEVICE_ID_LEN]; | |
412 | ||
dc422c04 | 413 | /* Recurse over parents to build the USB device path. */ |
e33dcf90 ML |
414 | dev_inst = device_info_data.DevInst; |
415 | do { | |
dc422c04 | 416 | /* Verify that this layer of the tree is USB related. */ |
e33dcf90 ML |
417 | if (CM_Get_Device_IDA(dev_inst, device_id, |
418 | sizeof(device_id), 0) != CR_SUCCESS | |
419 | || strncmp(device_id, "USB\\", 4)) | |
420 | continue; | |
421 | ||
dc422c04 | 422 | /* Discard one layer for composite devices. */ |
e33dcf90 ML |
423 | char compat_ids[512], *p = compat_ids; |
424 | size = sizeof(compat_ids); | |
425 | if (CM_Get_DevNode_Registry_PropertyA(dev_inst, | |
426 | CM_DRP_COMPATIBLEIDS, 0, | |
427 | &compat_ids, | |
428 | &size, 0) == CR_SUCCESS) { | |
429 | while (*p) { | |
430 | if (!strncmp(p, "USB\\COMPOSITE", 13)) | |
431 | break; | |
432 | p += strlen(p) + 1; | |
433 | } | |
434 | if (*p) | |
435 | continue; | |
436 | } | |
437 | ||
dc422c04 | 438 | /* Stop the recursion when reaching the USB root. */ |
e33dcf90 ML |
439 | if (!strncmp(device_id, "USB\\ROOT", 8)) |
440 | break; | |
441 | ||
dc422c04 | 442 | /* Prepend the address of current USB layer to the USB path. */ |
e33dcf90 ML |
443 | DWORD address; |
444 | size = sizeof(address); | |
445 | if (CM_Get_DevNode_Registry_PropertyA(dev_inst, CM_DRP_ADDRESS, | |
446 | 0, &address, &size, 0) == CR_SUCCESS) { | |
447 | strcpy(tmp, usb_path); | |
448 | snprintf(usb_path, sizeof(usb_path), "%d%s%s", | |
449 | (int)address, *tmp ? "." : "", tmp); | |
450 | } | |
451 | } while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS); | |
452 | ||
453 | port->usb_path = strdup(usb_path); | |
454 | ||
dc422c04 | 455 | /* Wake up the USB device to be able to read string descriptor. */ |
e33dcf90 ML |
456 | char *escaped_port_name; |
457 | HANDLE handle; | |
458 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) | |
459 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); | |
460 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); | |
461 | handle = CreateFile(escaped_port_name, GENERIC_READ, 0, 0, | |
462 | OPEN_EXISTING, | |
463 | FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, 0); | |
464 | free(escaped_port_name); | |
465 | CloseHandle(handle); | |
466 | ||
dc422c04 | 467 | /* Retrieve USB device details from the device descriptor. */ |
e33dcf90 ML |
468 | get_usb_details(port, device_info_data.DevInst); |
469 | } | |
470 | break; | |
471 | } | |
472 | ||
7aeb6736 AJ |
473 | SetupDiDestroyDeviceInfoList(device_info); |
474 | ||
e33dcf90 ML |
475 | RETURN_OK(); |
476 | } | |
477 | ||
970f279a | 478 | SP_PRIV enum sp_return list_ports(struct sp_port ***list) |
48a4076f AJ |
479 | { |
480 | HKEY key; | |
481 | TCHAR *value, *data; | |
482 | DWORD max_value_len, max_data_size, max_data_len; | |
483 | DWORD value_len, data_size, data_len; | |
484 | DWORD type, index = 0; | |
485 | char *name; | |
486 | int name_len; | |
487 | int ret = SP_OK; | |
488 | ||
489 | DEBUG("Opening registry key"); | |
490 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), | |
491 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { | |
492 | SET_FAIL(ret, "RegOpenKeyEx() failed"); | |
493 | goto out_done; | |
494 | } | |
495 | DEBUG("Querying registry key value and data sizes"); | |
496 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
497 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { | |
498 | SET_FAIL(ret, "RegQueryInfoKey() failed"); | |
499 | goto out_close; | |
500 | } | |
501 | max_data_len = max_data_size / sizeof(TCHAR); | |
502 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { | |
dc422c04 | 503 | SET_ERROR(ret, SP_ERR_MEM, "Registry value malloc failed"); |
48a4076f AJ |
504 | goto out_close; |
505 | } | |
506 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { | |
dc422c04 | 507 | SET_ERROR(ret, SP_ERR_MEM, "Registry data malloc failed"); |
48a4076f AJ |
508 | goto out_free_value; |
509 | } | |
510 | DEBUG("Iterating over values"); | |
511 | while ( | |
512 | value_len = max_value_len + 1, | |
513 | data_size = max_data_size, | |
514 | RegEnumValue(key, index, value, &value_len, | |
515 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) | |
516 | { | |
7aeb6736 | 517 | if (type == REG_SZ) { |
6c444ade AJ |
518 | data_len = data_size / sizeof(TCHAR); |
519 | data[data_len] = '\0'; | |
48a4076f | 520 | #ifdef UNICODE |
6c444ade | 521 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL); |
48a4076f | 522 | #else |
6c444ade | 523 | name_len = data_len + 1; |
48a4076f | 524 | #endif |
6c444ade | 525 | if (!(name = malloc(name_len))) { |
dc422c04 | 526 | SET_ERROR(ret, SP_ERR_MEM, "Registry port name malloc failed"); |
6c444ade AJ |
527 | goto out; |
528 | } | |
48a4076f | 529 | #ifdef UNICODE |
6c444ade | 530 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); |
48a4076f | 531 | #else |
6c444ade | 532 | strcpy(name, data); |
48a4076f | 533 | #endif |
d38c7d2c | 534 | DEBUG_FMT("Found port %s", name); |
48a4076f | 535 | if (!(*list = list_append(*list, name))) { |
dc422c04 | 536 | SET_ERROR(ret, SP_ERR_MEM, "List append failed"); |
7aeb6736 | 537 | free(name); |
48a4076f AJ |
538 | goto out; |
539 | } | |
7aeb6736 | 540 | free(name); |
48a4076f AJ |
541 | } |
542 | index++; | |
543 | } | |
544 | out: | |
545 | free(data); | |
546 | out_free_value: | |
547 | free(value); | |
548 | out_close: | |
549 | RegCloseKey(key); | |
550 | out_done: | |
551 | ||
552 | return ret; | |
553 | } |