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macosx.c
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macosx.c
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/*
* This file is part of the libserialport project.
*
* Copyright (C) 2013-2014 Martin Ling <[email protected]>
* Copyright (C) 2014 Aurelien Jacobs <[email protected]>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "libserialport.h"
#include "libserialport_internal.h"
SP_PRIV enum sp_return get_port_details(struct sp_port *port)
{
/*
* Description limited to 127 char, anything longer
* would not be user friendly anyway.
*/
char description[128];
int bus, address, vid, pid = -1;
char manufacturer[128], product[128], serial[128];
CFMutableDictionaryRef classes;
io_iterator_t iter;
io_object_t ioport, ioparent;
CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product;
Boolean result;
char path[PATH_MAX], class[16];
DEBUG("Getting serial port list");
if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue)))
RETURN_FAIL("IOServiceMatching() failed");
if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes,
&iter) != KERN_SUCCESS)
RETURN_FAIL("IOServiceGetMatchingServices() failed");
DEBUG("Iterating over results");
while ((ioport = IOIteratorNext(iter))) {
if (!(cf_property = IORegistryEntryCreateCFProperty(ioport,
CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0))) {
IOObjectRelease(ioport);
continue;
}
result = CFStringGetCString(cf_property, path, sizeof(path),
kCFStringEncodingASCII);
CFRelease(cf_property);
if (!result || strcmp(path, port->name)) {
IOObjectRelease(ioport);
continue;
}
DEBUG_FMT("Found port %s", path);
IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent);
if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane,
CFSTR("IOClass"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents))) {
if (CFStringGetCString(cf_property, class, sizeof(class),
kCFStringEncodingASCII) &&
strstr(class, "USB")) {
DEBUG("Found USB class device");
port->transport = SP_TRANSPORT_USB;
}
CFRelease(cf_property);
}
if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane,
CFSTR("IOProviderClass"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents))) {
if (CFStringGetCString(cf_property, class, sizeof(class),
kCFStringEncodingASCII) &&
strstr(class, "USB")) {
DEBUG("Found USB class device");
port->transport = SP_TRANSPORT_USB;
}
CFRelease(cf_property);
}
IOObjectRelease(ioparent);
if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("USB Interface Name"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
(cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("USB Product Name"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
(cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("Product Name"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
(cf_property = IORegistryEntryCreateCFProperty(ioport,
CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0))) {
if (CFStringGetCString(cf_property, description, sizeof(description),
kCFStringEncodingASCII)) {
DEBUG_FMT("Found description %s", description);
port->description = strdup(description);
}
CFRelease(cf_property);
} else {
DEBUG("No description for this device");
}
cf_bus = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
CFSTR("USBBusNumber"),
kCFAllocatorDefault,
kIORegistryIterateRecursively
| kIORegistryIterateParents);
cf_address = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
CFSTR("USB Address"),
kCFAllocatorDefault,
kIORegistryIterateRecursively
| kIORegistryIterateParents);
if (cf_bus && cf_address &&
CFNumberGetValue(cf_bus , kCFNumberIntType, &bus) &&
CFNumberGetValue(cf_address, kCFNumberIntType, &address)) {
DEBUG_FMT("Found matching USB bus:address %03d:%03d", bus, address);
port->usb_bus = bus;
port->usb_address = address;
}
if (cf_bus)
CFRelease(cf_bus);
if (cf_address)
CFRelease(cf_address);
cf_vendor = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
CFSTR("idVendor"),
kCFAllocatorDefault,
kIORegistryIterateRecursively
| kIORegistryIterateParents);
cf_product = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
CFSTR("idProduct"),
kCFAllocatorDefault,
kIORegistryIterateRecursively
| kIORegistryIterateParents);
if (cf_vendor && cf_product &&
CFNumberGetValue(cf_vendor , kCFNumberIntType, &vid) &&
CFNumberGetValue(cf_product, kCFNumberIntType, &pid)) {
DEBUG_FMT("Found matching USB VID:PID %04X:%04X", vid, pid);
port->usb_vid = vid;
port->usb_pid = pid;
}
if (cf_vendor)
CFRelease(cf_vendor);
if (cf_product)
CFRelease(cf_product);
if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("USB Vendor Name"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents))) {
if (CFStringGetCString(cf_property, manufacturer, sizeof(manufacturer),
kCFStringEncodingASCII)) {
DEBUG_FMT("Found manufacturer %s", manufacturer);
port->usb_manufacturer = strdup(manufacturer);
}
CFRelease(cf_property);
}
if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("USB Product Name"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents))) {
if (CFStringGetCString(cf_property, product, sizeof(product),
kCFStringEncodingASCII)) {
DEBUG_FMT("Found product name %s", product);
port->usb_product = strdup(product);
}
CFRelease(cf_property);
}
if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
CFSTR("USB Serial Number"), kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents))) {
if (CFStringGetCString(cf_property, serial, sizeof(serial),
kCFStringEncodingASCII)) {
DEBUG_FMT("Found serial number %s", serial);
port->usb_serial = strdup(serial);
}
CFRelease(cf_property);
}
IOObjectRelease(ioport);
break;
}
IOObjectRelease(iter);
RETURN_OK();
}
SP_PRIV enum sp_return list_ports(struct sp_port ***list)
{
CFMutableDictionaryRef classes;
io_iterator_t iter;
char path[PATH_MAX];
io_object_t port;
CFTypeRef cf_path;
Boolean result;
int ret = SP_OK;
DEBUG("Creating matching dictionary");
if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) {
SET_FAIL(ret, "IOServiceMatching() failed");
goto out_done;
}
DEBUG("Getting matching services");
if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes,
&iter) != KERN_SUCCESS) {
SET_FAIL(ret, "IOServiceGetMatchingServices() failed");
goto out_done;
}
DEBUG("Iterating over results");
while ((port = IOIteratorNext(iter))) {
cf_path = IORegistryEntryCreateCFProperty(port,
CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0);
if (cf_path) {
result = CFStringGetCString(cf_path, path, sizeof(path),
kCFStringEncodingASCII);
CFRelease(cf_path);
if (result) {
DEBUG_FMT("Found port %s", path);
if (!(*list = list_append(*list, path))) {
SET_ERROR(ret, SP_ERR_MEM, "List append failed");
IOObjectRelease(port);
goto out;
}
}
}
IOObjectRelease(port);
}
out:
IOObjectRelease(iter);
out_done:
return ret;
}