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abbca718 LOK |
1 | /* |
2 | * This file is part of the libCEC(R) library. | |
3 | * | |
4 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
5 | * libCEC(R) is an original work, containing original code. | |
6 | * | |
7 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
8 | * | |
9 | * This program is dual-licensed; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * | |
23 | * | |
24 | * Alternatively, you can license this library under a commercial license, | |
25 | * please contact Pulse-Eight Licensing for more information. | |
26 | * | |
27 | * For more information contact: | |
28 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
29 | * http://www.pulse-eight.com/ | |
30 | * http://www.pulse-eight.net/ | |
31 | */ | |
32 | ||
2abe74eb | 33 | #include "AdapterDetection.h" |
b9187cc6 | 34 | #include "platform/os-dependent.h" |
abbca718 | 35 | #include "util/StdString.h" |
a58d63d2 | 36 | |
6df2c52f | 37 | #if defined(__APPLE__) |
38 | #include <dirent.h> | |
39 | #include <sys/param.h> | |
40 | #include <IOKit/IOKitLib.h> | |
41 | #include <IOKit/IOMessage.h> | |
42 | #include <IOKit/IOCFPlugIn.h> | |
43 | #include <IOKit/usb/IOUSBLib.h> | |
44 | #include <IOKit/serial/IOSerialKeys.h> | |
45 | #include <CoreFoundation/CoreFoundation.h> | |
42c02563 | 46 | #elif defined(__WINDOWS__) |
a58d63d2 LOK |
47 | #include <setupapi.h> |
48 | ||
49 | // the virtual COM port only shows up when requesting devices with the raw device guid! | |
50 | static GUID USB_RAW_GUID = { 0xA5DCBF10, 0x6530, 0x11D2, { 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED } }; | |
42c02563 LOK |
51 | #elif defined(HAVE_LIBUDEV) |
52 | #include <dirent.h> | |
53 | #include <libudev.h> | |
54 | #include <poll.h> | |
abbca718 | 55 | #endif |
abbca718 LOK |
56 | |
57 | #define CEC_VID 0x2548 | |
58 | #define CEC_PID 0x1001 | |
59 | ||
60 | using namespace CEC; | |
61 | using namespace std; | |
62 | ||
42c02563 | 63 | #if defined(HAVE_LIBUDEV) |
abbca718 LOK |
64 | bool TranslateComPort(CStdString &strString) |
65 | { | |
66 | CStdString strTmp(strString); | |
67 | strTmp.MakeReverse(); | |
68 | int iSlash = strTmp.Find('/'); | |
69 | if (iSlash >= 0) | |
70 | { | |
71 | strTmp = strTmp.Left(iSlash); | |
72 | strTmp.MakeReverse(); | |
73 | strString.Format("%s/%s:1.0/tty", strString.c_str(), strTmp.c_str()); | |
74 | return true; | |
75 | } | |
76 | ||
77 | return false; | |
78 | } | |
79 | ||
80 | bool FindComPort(CStdString &strLocation) | |
81 | { | |
82 | CStdString strPort = strLocation; | |
83 | bool bReturn(!strPort.IsEmpty()); | |
84 | CStdString strConfigLocation(strLocation); | |
85 | if (TranslateComPort(strConfigLocation)) | |
86 | { | |
87 | DIR *dir; | |
88 | struct dirent *dirent; | |
89 | if((dir = opendir(strConfigLocation.c_str())) == NULL) | |
90 | return bReturn; | |
91 | ||
92 | while ((dirent = readdir(dir)) != NULL) | |
93 | { | |
94 | if(strcmp((char*)dirent->d_name, "." ) != 0 && strcmp((char*)dirent->d_name, ".." ) != 0) | |
95 | { | |
96 | strPort.Format("/dev/%s", dirent->d_name); | |
97 | if (!strPort.IsEmpty()) | |
98 | { | |
99 | strLocation = strPort; | |
100 | bReturn = true; | |
101 | break; | |
102 | } | |
103 | } | |
104 | } | |
105 | closedir(dir); | |
106 | } | |
107 | ||
108 | return bReturn; | |
109 | } | |
110 | #endif | |
111 | ||
25701fa6 | 112 | uint8_t CAdapterDetection::FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath /* = NULL */) |
abbca718 | 113 | { |
25701fa6 | 114 | uint8_t iFound(0); |
abbca718 | 115 | |
6df2c52f | 116 | #if defined(__APPLE__) |
117 | kern_return_t kresult; | |
118 | char bsdPath[MAXPATHLEN] = {0}; | |
119 | io_iterator_t serialPortIterator; | |
120 | ||
121 | CFMutableDictionaryRef classesToMatch = IOServiceMatching(kIOSerialBSDServiceValue); | |
122 | if (classesToMatch) | |
123 | { | |
124 | CFDictionarySetValue(classesToMatch, CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDModemType)); | |
125 | kresult = IOServiceGetMatchingServices(kIOMasterPortDefault, classesToMatch, &serialPortIterator); | |
126 | if (kresult == KERN_SUCCESS) | |
127 | { | |
128 | io_object_t serialService; | |
129 | while ((serialService = IOIteratorNext(serialPortIterator))) | |
130 | { | |
131 | int iVendor = 0, iProduct = 0; | |
132 | CFTypeRef bsdPathAsCFString; | |
133 | ||
134 | // fetch the device path. | |
135 | bsdPathAsCFString = IORegistryEntryCreateCFProperty(serialService, | |
136 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
137 | if (bsdPathAsCFString) | |
138 | { | |
139 | // convert the path from a CFString to a C (NUL-terminated) string. | |
140 | CFStringGetCString((CFStringRef)bsdPathAsCFString, bsdPath, MAXPATHLEN - 1, kCFStringEncodingUTF8); | |
141 | CFRelease(bsdPathAsCFString); | |
142 | ||
143 | // now walk up the hierarchy until we find the entry with vendor/product IDs | |
144 | io_registry_entry_t parent; | |
145 | CFTypeRef vendorIdAsCFNumber = NULL; | |
146 | CFTypeRef productIdAsCFNumber = NULL; | |
147 | kern_return_t kresult = IORegistryEntryGetParentEntry(serialService, kIOServicePlane, &parent); | |
148 | while (kresult == KERN_SUCCESS) | |
149 | { | |
150 | vendorIdAsCFNumber = IORegistryEntrySearchCFProperty(parent, | |
151 | kIOServicePlane, CFSTR(kUSBVendorID), kCFAllocatorDefault, 0); | |
152 | productIdAsCFNumber = IORegistryEntrySearchCFProperty(parent, | |
153 | kIOServicePlane, CFSTR(kUSBProductID), kCFAllocatorDefault, 0); | |
154 | if (vendorIdAsCFNumber && productIdAsCFNumber) | |
155 | { | |
156 | CFNumberGetValue((CFNumberRef)vendorIdAsCFNumber, kCFNumberIntType, &iVendor); | |
157 | CFRelease(vendorIdAsCFNumber); | |
158 | CFNumberGetValue((CFNumberRef)productIdAsCFNumber, kCFNumberIntType, &iProduct); | |
159 | CFRelease(productIdAsCFNumber); | |
160 | IOObjectRelease(parent); | |
161 | break; | |
162 | } | |
163 | io_registry_entry_t oldparent = parent; | |
164 | kresult = IORegistryEntryGetParentEntry(parent, kIOServicePlane, &parent); | |
165 | IOObjectRelease(oldparent); | |
166 | } | |
167 | if (strlen(bsdPath) && iVendor == CEC_VID && iProduct == CEC_PID) | |
168 | { | |
169 | if (!strDevicePath || !strcmp(bsdPath, strDevicePath)) | |
170 | { | |
171 | // on darwin, the device path is the same as the comm path. | |
172 | snprintf(deviceList[iFound ].path, sizeof(deviceList[iFound].path), "%s", bsdPath); | |
173 | snprintf(deviceList[iFound++].comm, sizeof(deviceList[iFound].path), "%s", bsdPath); | |
174 | } | |
175 | } | |
176 | } | |
177 | IOObjectRelease(serialService); | |
178 | } | |
179 | } | |
180 | IOObjectRelease(serialPortIterator); | |
181 | } | |
42c02563 | 182 | #elif defined(HAVE_LIBUDEV) |
abbca718 LOK |
183 | struct udev *udev; |
184 | if (!(udev = udev_new())) | |
185 | return -1; | |
186 | ||
187 | struct udev_enumerate *enumerate; | |
188 | struct udev_list_entry *devices, *dev_list_entry; | |
25701fa6 | 189 | struct udev_device *dev, *pdev; |
abbca718 LOK |
190 | enumerate = udev_enumerate_new(udev); |
191 | udev_enumerate_scan_devices(enumerate); | |
192 | devices = udev_enumerate_get_list_entry(enumerate); | |
193 | udev_list_entry_foreach(dev_list_entry, devices) | |
194 | { | |
195 | const char *strPath; | |
196 | strPath = udev_list_entry_get_name(dev_list_entry); | |
197 | ||
198 | dev = udev_device_new_from_syspath(udev, strPath); | |
199 | if (!dev) | |
200 | continue; | |
201 | ||
25701fa6 LOK |
202 | pdev = udev_device_get_parent(udev_device_get_parent(dev)); |
203 | if (!pdev || !udev_device_get_sysattr_value(pdev,"idVendor") || !udev_device_get_sysattr_value(pdev, "idProduct")) | |
abbca718 LOK |
204 | { |
205 | udev_device_unref(dev); | |
206 | continue; | |
207 | } | |
208 | ||
209 | int iVendor, iProduct; | |
25701fa6 LOK |
210 | sscanf(udev_device_get_sysattr_value(pdev, "idVendor"), "%x", &iVendor); |
211 | sscanf(udev_device_get_sysattr_value(pdev, "idProduct"), "%x", &iProduct); | |
abbca718 LOK |
212 | if (iVendor == CEC_VID && iProduct == CEC_PID) |
213 | { | |
25701fa6 LOK |
214 | CStdString strPath(udev_device_get_syspath(pdev)); |
215 | if (!strDevicePath || !strcmp(strPath.c_str(), strDevicePath)) | |
abbca718 | 216 | { |
25701fa6 LOK |
217 | CStdString strComm(strPath); |
218 | if (FindComPort(strComm)) | |
219 | { | |
220 | snprintf(deviceList[iFound ].path, sizeof(deviceList[iFound].path), "%s", strPath.c_str()); | |
221 | snprintf(deviceList[iFound++].comm, sizeof(deviceList[iFound].path), "%s", strComm.c_str()); | |
222 | } | |
abbca718 LOK |
223 | } |
224 | } | |
225 | udev_device_unref(dev); | |
226 | } | |
227 | ||
228 | udev_enumerate_unref(enumerate); | |
229 | udev_unref(udev); | |
42c02563 | 230 | #elif defined(__WINDOWS__) |
a58d63d2 LOK |
231 | HDEVINFO hDevHandle; |
232 | DWORD required = 0, iMemberIndex = 0; | |
233 | int nBufferSize = 0; | |
234 | ||
235 | SP_DEVICE_INTERFACE_DATA deviceInterfaceData; | |
236 | deviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); | |
237 | ||
238 | SP_DEVINFO_DATA devInfoData; | |
239 | devInfoData.cbSize = sizeof(SP_DEVINFO_DATA); | |
240 | ||
241 | if ((hDevHandle = SetupDiGetClassDevs(&USB_RAW_GUID, 0, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE)) == INVALID_HANDLE_VALUE) | |
242 | return iFound; | |
243 | ||
244 | BOOL bResult = true; | |
245 | TCHAR *buffer = NULL; | |
246 | PSP_DEVICE_INTERFACE_DETAIL_DATA devicedetailData; | |
25701fa6 | 247 | while(bResult && iFound < iBufSize) |
a58d63d2 LOK |
248 | { |
249 | bResult = SetupDiEnumDeviceInfo(hDevHandle, iMemberIndex, &devInfoData); | |
250 | ||
251 | if (bResult) | |
252 | bResult = SetupDiEnumDeviceInterfaces(hDevHandle, 0, &USB_RAW_GUID, iMemberIndex, &deviceInterfaceData); | |
253 | ||
254 | if(!bResult) | |
255 | { | |
256 | SetupDiDestroyDeviceInfoList(hDevHandle); | |
257 | delete []buffer; | |
258 | buffer = NULL; | |
259 | return iFound; | |
260 | } | |
261 | ||
262 | iMemberIndex++; | |
263 | BOOL bDetailResult = false; | |
264 | { | |
265 | // As per MSDN, Get the required buffer size. Call SetupDiGetDeviceInterfaceDetail with a | |
266 | // NULL DeviceInterfaceDetailData pointer, a DeviceInterfaceDetailDataSize of zero, | |
267 | // and a valid RequiredSize variable. In response to such a call, this function returns | |
268 | // the required buffer size at RequiredSize and fails with GetLastError returning | |
269 | // ERROR_INSUFFICIENT_BUFFER. | |
270 | // Allocate an appropriately sized buffer and call the function again to get the interface details. | |
271 | ||
272 | SetupDiGetDeviceInterfaceDetail(hDevHandle, &deviceInterfaceData, NULL, 0, &required, NULL); | |
273 | ||
274 | buffer = new TCHAR[required]; | |
275 | devicedetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA) buffer; | |
276 | devicedetailData->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA); | |
277 | nBufferSize = required; | |
278 | } | |
279 | ||
280 | bDetailResult = SetupDiGetDeviceInterfaceDetail(hDevHandle, &deviceInterfaceData, devicedetailData, nBufferSize , &required, NULL); | |
281 | if(!bDetailResult) | |
282 | continue; | |
283 | ||
b824eadc LOK |
284 | if (strDevicePath && strcmp(strDevicePath, devicedetailData->DevicePath) != 0) |
285 | continue; | |
286 | ||
a58d63d2 LOK |
287 | CStdString strVendorId; |
288 | CStdString strProductId; | |
289 | CStdString strTmp(devicedetailData->DevicePath); | |
25701fa6 LOK |
290 | strVendorId.assign(strTmp.substr(strTmp.Find("vid_") + 4, 4)); |
291 | strProductId.assign(strTmp.substr(strTmp.Find("pid_") + 4, 4)); | |
a58d63d2 LOK |
292 | if (strTmp.Find("&mi_") >= 0 && strTmp.Find("&mi_00") < 0) |
293 | continue; | |
294 | ||
295 | int iVendor, iProduct; | |
296 | sscanf(strVendorId, "%x", &iVendor); | |
297 | sscanf(strProductId, "%x", &iProduct); | |
298 | if (iVendor != CEC_VID || iProduct != CEC_PID) | |
299 | continue; | |
300 | ||
301 | HKEY hDeviceKey = SetupDiOpenDevRegKey(hDevHandle, &devInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_QUERY_VALUE); | |
302 | if (!hDeviceKey) | |
303 | continue; | |
304 | ||
305 | TCHAR strPortName[256]; | |
306 | strPortName[0] = _T('\0'); | |
307 | DWORD dwSize = sizeof(strPortName); | |
308 | DWORD dwType = 0; | |
309 | ||
310 | /* search the registry */ | |
311 | if ((RegQueryValueEx(hDeviceKey, _T("PortName"), NULL, &dwType, reinterpret_cast<LPBYTE>(strPortName), &dwSize) == ERROR_SUCCESS) && (dwType == REG_SZ)) | |
312 | { | |
313 | if (_tcslen(strPortName) > 3 && _tcsnicmp(strPortName, _T("COM"), 3) == 0 && | |
314 | _ttoi(&(strPortName[3])) > 0) | |
315 | { | |
25701fa6 LOK |
316 | snprintf(deviceList[iFound ].path, sizeof(deviceList[iFound].path), "%s", devicedetailData->DevicePath); |
317 | snprintf(deviceList[iFound++].comm, sizeof(deviceList[iFound].path), "%s", strPortName); | |
a58d63d2 LOK |
318 | } |
319 | } | |
320 | ||
321 | RegCloseKey(hDeviceKey); | |
322 | } | |
abbca718 LOK |
323 | #endif |
324 | ||
325 | return iFound; | |
326 | } |