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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 | |
abbca718 LOK |
37 | #if !defined(__WINDOWS__) |
38 | #include <dirent.h> | |
39 | #include <libudev.h> | |
40 | #include <poll.h> | |
a58d63d2 LOK |
41 | #else |
42 | #include <setupapi.h> | |
43 | ||
44 | // the virtual COM port only shows up when requesting devices with the raw device guid! | |
45 | static GUID USB_RAW_GUID = { 0xA5DCBF10, 0x6530, 0x11D2, { 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED } }; | |
abbca718 | 46 | #endif |
abbca718 LOK |
47 | |
48 | #define CEC_VID 0x2548 | |
49 | #define CEC_PID 0x1001 | |
50 | ||
51 | using namespace CEC; | |
52 | using namespace std; | |
53 | ||
54 | #if !defined(__WINDOWS__) | |
55 | bool TranslateComPort(CStdString &strString) | |
56 | { | |
57 | CStdString strTmp(strString); | |
58 | strTmp.MakeReverse(); | |
59 | int iSlash = strTmp.Find('/'); | |
60 | if (iSlash >= 0) | |
61 | { | |
62 | strTmp = strTmp.Left(iSlash); | |
63 | strTmp.MakeReverse(); | |
64 | strString.Format("%s/%s:1.0/tty", strString.c_str(), strTmp.c_str()); | |
65 | return true; | |
66 | } | |
67 | ||
68 | return false; | |
69 | } | |
70 | ||
71 | bool FindComPort(CStdString &strLocation) | |
72 | { | |
73 | CStdString strPort = strLocation; | |
74 | bool bReturn(!strPort.IsEmpty()); | |
75 | CStdString strConfigLocation(strLocation); | |
76 | if (TranslateComPort(strConfigLocation)) | |
77 | { | |
78 | DIR *dir; | |
79 | struct dirent *dirent; | |
80 | if((dir = opendir(strConfigLocation.c_str())) == NULL) | |
81 | return bReturn; | |
82 | ||
83 | while ((dirent = readdir(dir)) != NULL) | |
84 | { | |
85 | if(strcmp((char*)dirent->d_name, "." ) != 0 && strcmp((char*)dirent->d_name, ".." ) != 0) | |
86 | { | |
87 | strPort.Format("/dev/%s", dirent->d_name); | |
88 | if (!strPort.IsEmpty()) | |
89 | { | |
90 | strLocation = strPort; | |
91 | bReturn = true; | |
92 | break; | |
93 | } | |
94 | } | |
95 | } | |
96 | closedir(dir); | |
97 | } | |
98 | ||
99 | return bReturn; | |
100 | } | |
101 | #endif | |
102 | ||
2abe74eb | 103 | int CAdapterDetection::FindAdapters(vector<cec_adapter> &deviceList, const char *strDevicePath /* = NULL */) |
abbca718 LOK |
104 | { |
105 | int iFound(0); | |
106 | ||
107 | #if !defined(__WINDOWS__) | |
108 | struct udev *udev; | |
109 | if (!(udev = udev_new())) | |
110 | return -1; | |
111 | ||
112 | struct udev_enumerate *enumerate; | |
113 | struct udev_list_entry *devices, *dev_list_entry; | |
114 | struct udev_device *dev; | |
115 | enumerate = udev_enumerate_new(udev); | |
116 | udev_enumerate_scan_devices(enumerate); | |
117 | devices = udev_enumerate_get_list_entry(enumerate); | |
118 | udev_list_entry_foreach(dev_list_entry, devices) | |
119 | { | |
120 | const char *strPath; | |
121 | strPath = udev_list_entry_get_name(dev_list_entry); | |
122 | ||
123 | dev = udev_device_new_from_syspath(udev, strPath); | |
124 | if (!dev) | |
125 | continue; | |
126 | ||
127 | dev = udev_device_get_parent(udev_device_get_parent(dev)); | |
128 | if (!dev) | |
129 | continue; | |
130 | if (!udev_device_get_sysattr_value(dev,"idVendor") || !udev_device_get_sysattr_value(dev, "idProduct")) | |
131 | { | |
132 | udev_device_unref(dev); | |
133 | continue; | |
134 | } | |
135 | ||
136 | int iVendor, iProduct; | |
137 | sscanf(udev_device_get_sysattr_value(dev, "idVendor"), "%x", &iVendor); | |
138 | sscanf(udev_device_get_sysattr_value(dev, "idProduct"), "%x", &iProduct); | |
139 | if (iVendor == CEC_VID && iProduct == CEC_PID) | |
140 | { | |
141 | CStdString strPath(udev_device_get_syspath(dev)); | |
142 | if (strDevicePath && strcmp(strPath.c_str(), strDevicePath)) | |
143 | continue; | |
144 | ||
145 | CStdString strComm(strPath); | |
146 | if (FindComPort(strComm)) | |
147 | { | |
2abe74eb | 148 | cec_adapter foundDev; |
abbca718 LOK |
149 | foundDev.path = strPath; |
150 | foundDev.comm = strComm; | |
151 | deviceList.push_back(foundDev); | |
152 | ++iFound; | |
153 | } | |
154 | } | |
155 | udev_device_unref(dev); | |
156 | } | |
157 | ||
158 | udev_enumerate_unref(enumerate); | |
159 | udev_unref(udev); | |
a58d63d2 LOK |
160 | #else |
161 | HDEVINFO hDevHandle; | |
162 | DWORD required = 0, iMemberIndex = 0; | |
163 | int nBufferSize = 0; | |
164 | ||
165 | SP_DEVICE_INTERFACE_DATA deviceInterfaceData; | |
166 | deviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); | |
167 | ||
168 | SP_DEVINFO_DATA devInfoData; | |
169 | devInfoData.cbSize = sizeof(SP_DEVINFO_DATA); | |
170 | ||
171 | if ((hDevHandle = SetupDiGetClassDevs(&USB_RAW_GUID, 0, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE)) == INVALID_HANDLE_VALUE) | |
172 | return iFound; | |
173 | ||
174 | BOOL bResult = true; | |
175 | TCHAR *buffer = NULL; | |
176 | PSP_DEVICE_INTERFACE_DETAIL_DATA devicedetailData; | |
177 | while(bResult) | |
178 | { | |
179 | bResult = SetupDiEnumDeviceInfo(hDevHandle, iMemberIndex, &devInfoData); | |
180 | ||
181 | if (bResult) | |
182 | bResult = SetupDiEnumDeviceInterfaces(hDevHandle, 0, &USB_RAW_GUID, iMemberIndex, &deviceInterfaceData); | |
183 | ||
184 | if(!bResult) | |
185 | { | |
186 | SetupDiDestroyDeviceInfoList(hDevHandle); | |
187 | delete []buffer; | |
188 | buffer = NULL; | |
189 | return iFound; | |
190 | } | |
191 | ||
192 | iMemberIndex++; | |
193 | BOOL bDetailResult = false; | |
194 | { | |
195 | // As per MSDN, Get the required buffer size. Call SetupDiGetDeviceInterfaceDetail with a | |
196 | // NULL DeviceInterfaceDetailData pointer, a DeviceInterfaceDetailDataSize of zero, | |
197 | // and a valid RequiredSize variable. In response to such a call, this function returns | |
198 | // the required buffer size at RequiredSize and fails with GetLastError returning | |
199 | // ERROR_INSUFFICIENT_BUFFER. | |
200 | // Allocate an appropriately sized buffer and call the function again to get the interface details. | |
201 | ||
202 | SetupDiGetDeviceInterfaceDetail(hDevHandle, &deviceInterfaceData, NULL, 0, &required, NULL); | |
203 | ||
204 | buffer = new TCHAR[required]; | |
205 | devicedetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA) buffer; | |
206 | devicedetailData->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA); | |
207 | nBufferSize = required; | |
208 | } | |
209 | ||
210 | bDetailResult = SetupDiGetDeviceInterfaceDetail(hDevHandle, &deviceInterfaceData, devicedetailData, nBufferSize , &required, NULL); | |
211 | if(!bDetailResult) | |
212 | continue; | |
213 | ||
b824eadc LOK |
214 | if (strDevicePath && strcmp(strDevicePath, devicedetailData->DevicePath) != 0) |
215 | continue; | |
216 | ||
a58d63d2 LOK |
217 | CStdString strVendorId; |
218 | CStdString strProductId; | |
219 | CStdString strTmp(devicedetailData->DevicePath); | |
220 | strVendorId = strTmp.substr(strTmp.Find("vid_") + 4, 4); | |
221 | strProductId = strTmp.substr(strTmp.Find("pid_") + 4, 4); | |
222 | if (strTmp.Find("&mi_") >= 0 && strTmp.Find("&mi_00") < 0) | |
223 | continue; | |
224 | ||
225 | int iVendor, iProduct; | |
226 | sscanf(strVendorId, "%x", &iVendor); | |
227 | sscanf(strProductId, "%x", &iProduct); | |
228 | if (iVendor != CEC_VID || iProduct != CEC_PID) | |
229 | continue; | |
230 | ||
231 | HKEY hDeviceKey = SetupDiOpenDevRegKey(hDevHandle, &devInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_QUERY_VALUE); | |
232 | if (!hDeviceKey) | |
233 | continue; | |
234 | ||
235 | TCHAR strPortName[256]; | |
236 | strPortName[0] = _T('\0'); | |
237 | DWORD dwSize = sizeof(strPortName); | |
238 | DWORD dwType = 0; | |
239 | ||
240 | /* search the registry */ | |
241 | if ((RegQueryValueEx(hDeviceKey, _T("PortName"), NULL, &dwType, reinterpret_cast<LPBYTE>(strPortName), &dwSize) == ERROR_SUCCESS) && (dwType == REG_SZ)) | |
242 | { | |
243 | if (_tcslen(strPortName) > 3 && _tcsnicmp(strPortName, _T("COM"), 3) == 0 && | |
244 | _ttoi(&(strPortName[3])) > 0) | |
245 | { | |
2abe74eb | 246 | cec_adapter foundDev; |
a58d63d2 LOK |
247 | foundDev.path = devicedetailData->DevicePath; |
248 | foundDev.comm = strPortName; | |
249 | deviceList.push_back(foundDev); | |
250 | ++iFound; | |
251 | } | |
252 | } | |
253 | ||
254 | RegCloseKey(hDeviceKey); | |
255 | } | |
abbca718 LOK |
256 | #endif |
257 | ||
258 | return iFound; | |
259 | } |