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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 <config.h> | |
22 | #include "libserialport.h" | |
23 | #include "libserialport_internal.h" | |
24 | ||
25 | SP_PRIV enum sp_return get_port_details(struct sp_port *port) | |
26 | { | |
27 | /* | |
28 | * Description limited to 127 char, anything longer | |
29 | * would not be user friendly anyway. | |
30 | */ | |
31 | char description[128]; | |
32 | int bus, address, vid, pid = -1; | |
33 | char manufacturer[128], product[128], serial[128]; | |
34 | CFMutableDictionaryRef classes; | |
35 | io_iterator_t iter; | |
36 | io_object_t ioport, ioparent; | |
37 | CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product; | |
38 | Boolean result; | |
39 | char path[PATH_MAX], class[16]; | |
40 | ||
41 | DEBUG("Getting serial port list"); | |
42 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) | |
43 | RETURN_FAIL("IOServiceMatching() failed"); | |
44 | ||
45 | if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes, | |
46 | &iter) != KERN_SUCCESS) | |
47 | RETURN_FAIL("IOServiceGetMatchingServices() failed"); | |
48 | ||
49 | DEBUG("Iterating over results"); | |
50 | while ((ioport = IOIteratorNext(iter))) { | |
51 | if (!(cf_property = IORegistryEntryCreateCFProperty(ioport, | |
52 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0))) { | |
53 | IOObjectRelease(ioport); | |
54 | continue; | |
55 | } | |
56 | result = CFStringGetCString(cf_property, path, sizeof(path), | |
57 | kCFStringEncodingASCII); | |
58 | CFRelease(cf_property); | |
59 | if (!result || strcmp(path, port->name)) { | |
60 | IOObjectRelease(ioport); | |
61 | continue; | |
62 | } | |
63 | DEBUG_FMT("Found port %s", path); | |
64 | ||
65 | IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent); | |
66 | if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane, | |
67 | CFSTR("IOClass"), kCFAllocatorDefault, | |
68 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
69 | if (CFStringGetCString(cf_property, class, sizeof(class), | |
70 | kCFStringEncodingASCII) && | |
71 | strstr(class, "USB")) { | |
72 | DEBUG("Found USB class device"); | |
73 | port->transport = SP_TRANSPORT_USB; | |
74 | } | |
75 | CFRelease(cf_property); | |
76 | } | |
77 | if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane, | |
78 | CFSTR("IOProviderClass"), kCFAllocatorDefault, | |
79 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
80 | if (CFStringGetCString(cf_property, class, sizeof(class), | |
81 | kCFStringEncodingASCII) && | |
82 | strstr(class, "USB")) { | |
83 | DEBUG("Found USB class device"); | |
84 | port->transport = SP_TRANSPORT_USB; | |
85 | } | |
86 | CFRelease(cf_property); | |
87 | } | |
88 | IOObjectRelease(ioparent); | |
89 | ||
90 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
91 | CFSTR("USB Interface Name"), kCFAllocatorDefault, | |
92 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
93 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
94 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
95 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
96 | (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
97 | CFSTR("Product Name"), kCFAllocatorDefault, | |
98 | kIORegistryIterateRecursively | kIORegistryIterateParents)) || | |
99 | (cf_property = IORegistryEntryCreateCFProperty(ioport, | |
100 | CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0))) { | |
101 | if (CFStringGetCString(cf_property, description, sizeof(description), | |
102 | kCFStringEncodingASCII)) { | |
103 | DEBUG_FMT("Found description %s", description); | |
104 | port->description = strdup(description); | |
105 | } | |
106 | CFRelease(cf_property); | |
107 | } else { | |
108 | DEBUG("No description for this device"); | |
109 | } | |
110 | ||
111 | cf_bus = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
112 | CFSTR("USBBusNumber"), | |
113 | kCFAllocatorDefault, | |
114 | kIORegistryIterateRecursively | |
115 | | kIORegistryIterateParents); | |
116 | cf_address = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
117 | CFSTR("USB Address"), | |
118 | kCFAllocatorDefault, | |
119 | kIORegistryIterateRecursively | |
120 | | kIORegistryIterateParents); | |
121 | if (cf_bus && cf_address && | |
122 | CFNumberGetValue(cf_bus , kCFNumberIntType, &bus) && | |
123 | CFNumberGetValue(cf_address, kCFNumberIntType, &address)) { | |
124 | DEBUG_FMT("Found matching USB bus:address %03d:%03d", bus, address); | |
125 | port->usb_bus = bus; | |
126 | port->usb_address = address; | |
127 | } | |
128 | if (cf_bus) | |
129 | CFRelease(cf_bus); | |
130 | if (cf_address) | |
131 | CFRelease(cf_address); | |
132 | ||
133 | cf_vendor = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
134 | CFSTR("idVendor"), | |
135 | kCFAllocatorDefault, | |
136 | kIORegistryIterateRecursively | |
137 | | kIORegistryIterateParents); | |
138 | cf_product = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane, | |
139 | CFSTR("idProduct"), | |
140 | kCFAllocatorDefault, | |
141 | kIORegistryIterateRecursively | |
142 | | kIORegistryIterateParents); | |
143 | if (cf_vendor && cf_product && | |
144 | CFNumberGetValue(cf_vendor , kCFNumberIntType, &vid) && | |
145 | CFNumberGetValue(cf_product, kCFNumberIntType, &pid)) { | |
146 | DEBUG_FMT("Found matching USB VID:PID %04X:%04X", vid, pid); | |
147 | port->usb_vid = vid; | |
148 | port->usb_pid = pid; | |
149 | } | |
150 | if (cf_vendor) | |
151 | CFRelease(cf_vendor); | |
152 | if (cf_product) | |
153 | CFRelease(cf_product); | |
154 | ||
155 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
156 | CFSTR("USB Vendor Name"), kCFAllocatorDefault, | |
157 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
158 | if (CFStringGetCString(cf_property, manufacturer, sizeof(manufacturer), | |
159 | kCFStringEncodingASCII)) { | |
160 | DEBUG_FMT("Found manufacturer %s", manufacturer); | |
161 | port->usb_manufacturer = strdup(manufacturer); | |
162 | } | |
163 | CFRelease(cf_property); | |
164 | } | |
165 | ||
166 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
167 | CFSTR("USB Product Name"), kCFAllocatorDefault, | |
168 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
169 | if (CFStringGetCString(cf_property, product, sizeof(product), | |
170 | kCFStringEncodingASCII)) { | |
171 | DEBUG_FMT("Found product name %s", product); | |
172 | port->usb_product = strdup(product); | |
173 | } | |
174 | CFRelease(cf_property); | |
175 | } | |
176 | ||
177 | if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane, | |
178 | CFSTR("USB Serial Number"), kCFAllocatorDefault, | |
179 | kIORegistryIterateRecursively | kIORegistryIterateParents))) { | |
180 | if (CFStringGetCString(cf_property, serial, sizeof(serial), | |
181 | kCFStringEncodingASCII)) { | |
182 | DEBUG_FMT("Found serial number %s", serial); | |
183 | port->usb_serial = strdup(serial); | |
184 | } | |
185 | CFRelease(cf_property); | |
186 | } | |
187 | ||
188 | IOObjectRelease(ioport); | |
189 | break; | |
190 | } | |
191 | IOObjectRelease(iter); | |
192 | ||
193 | RETURN_OK(); | |
194 | } | |
195 | ||
196 | SP_PRIV enum sp_return list_ports(struct sp_port ***list) | |
197 | { | |
198 | CFMutableDictionaryRef classes; | |
199 | io_iterator_t iter; | |
200 | char path[PATH_MAX]; | |
201 | io_object_t port; | |
202 | CFTypeRef cf_path; | |
203 | Boolean result; | |
204 | int ret = SP_OK; | |
205 | ||
206 | DEBUG("Creating matching dictionary"); | |
207 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { | |
208 | SET_FAIL(ret, "IOServiceMatching() failed"); | |
209 | goto out_done; | |
210 | } | |
211 | ||
212 | DEBUG("Getting matching services"); | |
213 | if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes, | |
214 | &iter) != KERN_SUCCESS) { | |
215 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); | |
216 | goto out_done; | |
217 | } | |
218 | ||
219 | DEBUG("Iterating over results"); | |
220 | while ((port = IOIteratorNext(iter))) { | |
221 | cf_path = IORegistryEntryCreateCFProperty(port, | |
222 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
223 | if (cf_path) { | |
224 | result = CFStringGetCString(cf_path, path, sizeof(path), | |
225 | kCFStringEncodingASCII); | |
226 | CFRelease(cf_path); | |
227 | if (result) { | |
228 | DEBUG_FMT("Found port %s", path); | |
229 | if (!(*list = list_append(*list, path))) { | |
230 | SET_ERROR(ret, SP_ERR_MEM, "List append failed"); | |
231 | IOObjectRelease(port); | |
232 | goto out; | |
233 | } | |
234 | } | |
235 | } | |
236 | IOObjectRelease(port); | |
237 | } | |
238 | out: | |
239 | IOObjectRelease(iter); | |
240 | out_done: | |
241 | ||
242 | return ret; | |
243 | } |