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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]; | |
31 | char baddr[32]; | |
32 | CFMutableDictionaryRef classes; | |
33 | io_iterator_t iter; | |
34 | io_object_t ioport; | |
35 | CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product; | |
36 | Boolean result; | |
37 | char path[PATH_MAX]; | |
38 | ||
39 | DEBUG("Getting serial port list"); | |
40 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) | |
41 | RETURN_FAIL("IOServiceMatching() failed"); | |
42 | ||
43 | if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes, | |
44 | &iter) != KERN_SUCCESS) | |
45 | RETURN_FAIL("IOServiceGetMatchingServices() failed"); | |
46 | ||
47 | DEBUG("Iterating over results"); | |
48 | while ((ioport = IOIteratorNext(iter))) { | |
49 | if (!(cf_property = IORegistryEntryCreateCFProperty(ioport, | |
50 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0))) { | |
51 | IOObjectRelease(ioport); | |
52 | continue; | |
53 | } | |
54 | result = CFStringGetCString(cf_property, path, sizeof(path), | |
55 | kCFStringEncodingASCII); | |
56 | CFRelease(cf_property); | |
57 | if (!result || strcmp(path, port->name)) { | |
58 | IOObjectRelease(ioport); | |
59 | continue; | |
60 | } | |
61 | DEBUG("Found port %s", path); | |
62 | ||
63 | IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent); | |
64 | if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane, | |
65 | CFSTR("IOProviderClass"), kCFAllocatorDefault, | |
66 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
67 | if (CFStringGetCString(cf_property, class, sizeof(class), | |
68 | kCFStringEncodingASCII) && | |
69 | strstr(class, "USB")) { | |
70 | DEBUG("Found USB class device"); | |
71 | port->transport = SP_TRANSPORT_USB; | |
72 | } | |
73 | CFRelease(cf_property); | |
74 | } | |
75 | IOObjectRelease(ioparent); | |
76 | ||
77 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
78 | CFSTR("USB Interface Name"), kCFAllocatorDefault, | |
79 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
80 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
81 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
82 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
83 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
84 | CFSTR("Product Name"), kCFAllocatorDefault, | |
85 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
86 | (cf_property = IORegistryEntryCreateCFProperty(ioport, | |
87 | CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0))) { | |
88 | if (CFStringGetCString(cf_property, description, sizeof(description), | |
89 | kCFStringEncodingASCII)) { | |
90 | DEBUG("Found description %s", description); | |
91 | port->description = strdup(description); | |
92 | } | |
93 | CFRelease(cf_property); | |
94 | } else { | |
95 | DEBUG("No description for this device"); | |
96 | } | |
97 | ||
98 | cf_bus = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
99 | CFSTR("USBBusNumber"), | |
100 | kCFAllocatorDefault, | |
101 | kIORegistryIterateRecursively | |
102 | | kIORegistryIterateParents); | |
103 | cf_address = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
104 | CFSTR("USB Address"), | |
105 | kCFAllocatorDefault, | |
106 | kIORegistryIterateRecursively | |
107 | | kIORegistryIterateParents); | |
108 | if (cf_bus && cf_address && | |
109 | CFNumberGetValue(cf_bus , kCFNumberIntType, &bus) && | |
110 | CFNumberGetValue(cf_address, kCFNumberIntType, &address)) { | |
111 | DEBUG("Found matching USB bus:address %03d:%03d", bus, address); | |
112 | port->usb_bus = bus; | |
113 | port->usb_address = address; | |
114 | } | |
115 | if (cf_bus ) CFRelease(cf_bus); | |
116 | if (cf_address) CFRelease(cf_address); | |
117 | ||
118 | cf_vendor = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
119 | CFSTR("idVendor"), | |
120 | kCFAllocatorDefault, | |
121 | kIORegistryIterateRecursively | |
122 | | kIORegistryIterateParents); | |
123 | cf_product = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
124 | CFSTR("idProduct"), | |
125 | kCFAllocatorDefault, | |
126 | kIORegistryIterateRecursively | |
127 | | kIORegistryIterateParents); | |
128 | if (cf_vendor && cf_product && | |
129 | CFNumberGetValue(cf_vendor , kCFNumberIntType, &vid) && | |
130 | CFNumberGetValue(cf_product, kCFNumberIntType, &pid)) { | |
131 | DEBUG("Found matching USB vid:pid %04X:%04X", vid, pid); | |
132 | port->usb_vid = vid; | |
133 | port->usb_pid = pid; | |
134 | } | |
135 | if (cf_vendor ) CFRelease(cf_vendor); | |
136 | if (cf_product) CFRelease(cf_product); | |
137 | ||
138 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
139 | CFSTR("USB Vendor Name"), kCFAllocatorDefault, | |
140 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
141 | if (CFStringGetCString(cf_property, manufacturer, sizeof(manufacturer), | |
142 | kCFStringEncodingASCII)) { | |
143 | DEBUG("Found manufacturer %s", manufacturer); | |
144 | port->usb_manufacturer = strdup(manufacturer); | |
145 | } | |
146 | CFRelease(cf_property); | |
147 | } | |
148 | ||
149 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
150 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
151 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
152 | if (CFStringGetCString(cf_property, product, sizeof(product), | |
153 | kCFStringEncodingASCII)) { | |
154 | DEBUG("Found product name %s", product); | |
155 | port->usb_product = strdup(product); | |
156 | } | |
157 | CFRelease(cf_property); | |
158 | } | |
159 | ||
160 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
161 | CFSTR("USB Serial Number"), kCFAllocatorDefault, | |
162 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
163 | if (CFStringGetCString(cf_property, serial, sizeof(serial), | |
164 | kCFStringEncodingASCII)) { | |
165 | DEBUG("Found serial number %s", serial); | |
166 | port->usb_serial = strdup(serial); | |
167 | } | |
168 | CFRelease(cf_property); | |
169 | } | |
170 | ||
171 | IOObjectRelease(ioport); | |
172 | break; | |
173 | } | |
174 | IOObjectRelease(iter); | |
175 | ||
176 | RETURN_OK(); | |
177 | } |