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1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li> | |
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 | ||
21 | #include "libserialport.h" | |
22 | #include "libserialport_internal.h" | |
23 | ||
24 | enum sp_return get_port_details(struct sp_port *port) | |
25 | { | |
26 | /* Description limited to 127 char, | |
27 | anything longer would not be user friendly anyway */ | |
28 | char description[128]; | |
29 | int bus, address, vid, pid = -1; | |
30 | char manufacturer[128], product[128], serial[128]; | |
e33dcf90 ML |
31 | CFMutableDictionaryRef classes; |
32 | io_iterator_t iter; | |
23526999 | 33 | io_object_t ioport, ioparent; |
e33dcf90 ML |
34 | CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product; |
35 | Boolean result; | |
23526999 | 36 | char path[PATH_MAX], class[16]; |
e33dcf90 ML |
37 | |
38 | DEBUG("Getting serial port list"); | |
39 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) | |
40 | RETURN_FAIL("IOServiceMatching() failed"); | |
41 | ||
42 | if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes, | |
43 | &iter) != KERN_SUCCESS) | |
44 | RETURN_FAIL("IOServiceGetMatchingServices() failed"); | |
45 | ||
46 | DEBUG("Iterating over results"); | |
47 | while ((ioport = IOIteratorNext(iter))) { | |
48 | if (!(cf_property = IORegistryEntryCreateCFProperty(ioport, | |
49 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0))) { | |
50 | IOObjectRelease(ioport); | |
51 | continue; | |
52 | } | |
53 | result = CFStringGetCString(cf_property, path, sizeof(path), | |
54 | kCFStringEncodingASCII); | |
55 | CFRelease(cf_property); | |
56 | if (!result || strcmp(path, port->name)) { | |
57 | IOObjectRelease(ioport); | |
58 | continue; | |
59 | } | |
60 | DEBUG("Found port %s", path); | |
61 | ||
62 | IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent); | |
63 | if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane, | |
64 | CFSTR("IOProviderClass"), kCFAllocatorDefault, | |
65 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
66 | if (CFStringGetCString(cf_property, class, sizeof(class), | |
67 | kCFStringEncodingASCII) && | |
68 | strstr(class, "USB")) { | |
69 | DEBUG("Found USB class device"); | |
70 | port->transport = SP_TRANSPORT_USB; | |
71 | } | |
72 | CFRelease(cf_property); | |
73 | } | |
74 | IOObjectRelease(ioparent); | |
75 | ||
76 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
77 | CFSTR("USB Interface Name"), kCFAllocatorDefault, | |
78 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
79 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
80 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
81 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
82 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
83 | CFSTR("Product Name"), kCFAllocatorDefault, | |
84 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
85 | (cf_property = IORegistryEntryCreateCFProperty(ioport, | |
86 | CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0))) { | |
87 | if (CFStringGetCString(cf_property, description, sizeof(description), | |
88 | kCFStringEncodingASCII)) { | |
89 | DEBUG("Found description %s", description); | |
90 | port->description = strdup(description); | |
91 | } | |
92 | CFRelease(cf_property); | |
93 | } else { | |
94 | DEBUG("No description for this device"); | |
95 | } | |
96 | ||
97 | cf_bus = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
98 | CFSTR("USBBusNumber"), | |
99 | kCFAllocatorDefault, | |
100 | kIORegistryIterateRecursively | |
101 | | kIORegistryIterateParents); | |
102 | cf_address = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
103 | CFSTR("USB Address"), | |
104 | kCFAllocatorDefault, | |
105 | kIORegistryIterateRecursively | |
106 | | kIORegistryIterateParents); | |
107 | if (cf_bus && cf_address && | |
108 | CFNumberGetValue(cf_bus , kCFNumberIntType, &bus) && | |
109 | CFNumberGetValue(cf_address, kCFNumberIntType, &address)) { | |
110 | DEBUG("Found matching USB bus:address %03d:%03d", bus, address); | |
111 | port->usb_bus = bus; | |
112 | port->usb_address = address; | |
113 | } | |
114 | if (cf_bus ) CFRelease(cf_bus); | |
115 | if (cf_address) CFRelease(cf_address); | |
116 | ||
117 | cf_vendor = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
118 | CFSTR("idVendor"), | |
119 | kCFAllocatorDefault, | |
120 | kIORegistryIterateRecursively | |
121 | | kIORegistryIterateParents); | |
122 | cf_product = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
123 | CFSTR("idProduct"), | |
124 | kCFAllocatorDefault, | |
125 | kIORegistryIterateRecursively | |
126 | | kIORegistryIterateParents); | |
127 | if (cf_vendor && cf_product && | |
128 | CFNumberGetValue(cf_vendor , kCFNumberIntType, &vid) && | |
129 | CFNumberGetValue(cf_product, kCFNumberIntType, &pid)) { | |
130 | DEBUG("Found matching USB vid:pid %04X:%04X", vid, pid); | |
131 | port->usb_vid = vid; | |
132 | port->usb_pid = pid; | |
133 | } | |
134 | if (cf_vendor ) CFRelease(cf_vendor); | |
135 | if (cf_product) CFRelease(cf_product); | |
136 | ||
137 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
138 | CFSTR("USB Vendor Name"), kCFAllocatorDefault, | |
139 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
140 | if (CFStringGetCString(cf_property, manufacturer, sizeof(manufacturer), | |
141 | kCFStringEncodingASCII)) { | |
142 | DEBUG("Found manufacturer %s", manufacturer); | |
143 | port->usb_manufacturer = strdup(manufacturer); | |
144 | } | |
145 | CFRelease(cf_property); | |
146 | } | |
147 | ||
148 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
149 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
150 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
151 | if (CFStringGetCString(cf_property, product, sizeof(product), | |
152 | kCFStringEncodingASCII)) { | |
153 | DEBUG("Found product name %s", product); | |
154 | port->usb_product = strdup(product); | |
155 | } | |
156 | CFRelease(cf_property); | |
157 | } | |
158 | ||
159 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
160 | CFSTR("USB Serial Number"), kCFAllocatorDefault, | |
161 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
162 | if (CFStringGetCString(cf_property, serial, sizeof(serial), | |
163 | kCFStringEncodingASCII)) { | |
164 | DEBUG("Found serial number %s", serial); | |
165 | port->usb_serial = strdup(serial); | |
166 | } | |
167 | CFRelease(cf_property); | |
168 | } | |
169 | ||
170 | IOObjectRelease(ioport); | |
171 | break; | |
172 | } | |
173 | IOObjectRelease(iter); | |
174 | ||
175 | RETURN_OK(); | |
176 | } |