* Copyright (C) 2010-2012 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
* Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
+ * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
#include <stdarg.h>
#ifdef _WIN32
#include <windows.h>
+#include <setupapi.h>
+#include <cfgmgr32.h>
+#include <usbioctl.h>
#include <tchar.h>
#else
#include <limits.h>
#include <poll.h>
#endif
#ifdef __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/serial/IOSerialKeys.h>
#include <IOKit/serial/ioss.h>
struct sp_port {
char *name;
+ char *description;
+ enum sp_transport transport;
+ int usb_bus;
+ int usb_address;
+ int usb_vid;
+ int usb_pid;
+ char *usb_manufacturer;
+ char *usb_product;
+ char *usb_serial;
+ char *bluetooth_address;
#ifdef _WIN32
+ char *usb_path;
HANDLE hdl;
COMMTIMEOUTS timeouts;
OVERLAPPED write_ovl;
static enum sp_return set_config(struct sp_port *port, struct port_data *data,
const struct sp_port_config *config);
+#ifdef _WIN32
+
+/* USB path is a string of at most 8 decimal numbers < 128 separated by dots */
+#define MAX_USB_PATH (8*3 + 7*1 + 1)
+
+static char *wc_to_utf8(PWCHAR wc_buffer, ULONG size)
+{
+ WCHAR wc_str[size/sizeof(WCHAR)+1];
+ char *utf8_str;
+
+ /* zero terminate the wide char string */
+ memcpy(wc_str, wc_buffer, size);
+ wc_str[sizeof(wc_str)-1] = 0;
+
+ /* compute the size of the utf8 converted string */
+ if (!(size = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1,
+ NULL, 0, NULL, NULL)))
+ return NULL;
+
+ /* allocate utf8 output buffer */
+ if (!(utf8_str = malloc(size)))
+ return NULL;
+
+ /* actually converted to utf8 */
+ if (!WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1,
+ utf8_str, size, NULL, NULL)) {
+ free(utf8_str);
+ return NULL;
+ }
+
+ return utf8_str;
+}
+
+static char *get_root_hub_name(HANDLE host_controller)
+{
+ USB_ROOT_HUB_NAME root_hub_name;
+ PUSB_ROOT_HUB_NAME root_hub_name_wc;
+ char *root_hub_name_utf8;
+ ULONG size = 0;
+
+ /* compute the size of the root hub name string */
+ if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME, 0, 0,
+ &root_hub_name, sizeof(root_hub_name), &size, NULL))
+ return NULL;
+
+ /* allocate wide char root hub name string */
+ size = root_hub_name.ActualLength;
+ if (!(root_hub_name_wc = malloc(size)))
+ return NULL;
+
+ /* actually get the root hub name string */
+ if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME,
+ NULL, 0, root_hub_name_wc, size, &size, NULL)) {
+ free(root_hub_name_wc);
+ return NULL;
+ }
+
+ /* convert the root hub name string to utf8 */
+ root_hub_name_utf8 = wc_to_utf8(root_hub_name_wc->RootHubName, size);
+ free(root_hub_name_wc);
+ return root_hub_name_utf8;
+}
+
+static char *get_external_hub_name(HANDLE hub, ULONG connection_index)
+{
+ USB_NODE_CONNECTION_NAME ext_hub_name;
+ PUSB_NODE_CONNECTION_NAME ext_hub_name_wc;
+ char *ext_hub_name_utf8;
+ ULONG size;
+
+ /* compute the size of the external hub name string */
+ ext_hub_name.ConnectionIndex = connection_index;
+ if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME,
+ &ext_hub_name, sizeof(ext_hub_name),
+ &ext_hub_name, sizeof(ext_hub_name), &size, NULL))
+ return NULL;
+
+ /* allocate wide char external hub name string */
+ size = ext_hub_name.ActualLength;
+ if (size <= sizeof(ext_hub_name)
+ || !(ext_hub_name_wc = malloc(size)))
+ return NULL;
+
+ /* get the name of the external hub attached to the specified port */
+ ext_hub_name_wc->ConnectionIndex = connection_index;
+ if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME,
+ ext_hub_name_wc, size,
+ ext_hub_name_wc, size, &size, NULL)) {
+ free(ext_hub_name_wc);
+ return NULL;
+ }
+
+ /* convert the external hub name string to utf8 */
+ ext_hub_name_utf8 = wc_to_utf8(ext_hub_name_wc->NodeName, size);
+ free(ext_hub_name_wc);
+ return ext_hub_name_utf8;
+}
+
+static char *get_string_descriptor(HANDLE hub_device, ULONG connection_index,
+ UCHAR descriptor_index)
+{
+ char desc_req_buf[sizeof(USB_DESCRIPTOR_REQUEST) +
+ MAXIMUM_USB_STRING_LENGTH] = { 0 };
+ PUSB_DESCRIPTOR_REQUEST desc_req = (void *) desc_req_buf;
+ PUSB_STRING_DESCRIPTOR desc = (void *) (desc_req + 1);
+ ULONG size = sizeof(desc_req_buf);
+
+ desc_req->ConnectionIndex = connection_index;
+ desc_req->SetupPacket.wValue = (USB_STRING_DESCRIPTOR_TYPE << 8)
+ | descriptor_index;
+ desc_req->SetupPacket.wIndex = 0;
+ desc_req->SetupPacket.wLength = size - sizeof(*desc_req);
+
+ if (!DeviceIoControl(hub_device,
+ IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
+ desc_req, size, desc_req, size, &size, NULL)
+ || size < 2
+ || desc->bDescriptorType != USB_STRING_DESCRIPTOR_TYPE
+ || desc->bLength != size - sizeof(*desc_req)
+ || desc->bLength % 2)
+ return NULL;
+
+ return wc_to_utf8(desc->bString, desc->bLength);
+}
+
+static void enumerate_hub(struct sp_port *port, char *hub_name,
+ char *parent_path);
+
+static void enumerate_hub_ports(struct sp_port *port, HANDLE hub_device,
+ ULONG nb_ports, char *parent_path)
+{
+ char path[MAX_USB_PATH];
+ ULONG index = 0;
+
+ for (index = 1; index <= nb_ports; index++) {
+ PUSB_NODE_CONNECTION_INFORMATION_EX connection_info_ex;
+ ULONG size = sizeof(*connection_info_ex) + 30*sizeof(USB_PIPE_INFO);
+
+ if (!(connection_info_ex = malloc(size)))
+ break;
+
+ connection_info_ex->ConnectionIndex = index;
+ if (!DeviceIoControl(hub_device,
+ IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX,
+ connection_info_ex, size,
+ connection_info_ex, size, &size, NULL)) {
+ /* try to get CONNECTION_INFORMATION if CONNECTION_INFORMATION_EX
+ did not work */
+ PUSB_NODE_CONNECTION_INFORMATION connection_info;
+
+ size = sizeof(*connection_info) + 30*sizeof(USB_PIPE_INFO);
+ if (!(connection_info = malloc(size))) {
+ free(connection_info_ex);
+ continue;
+ }
+ connection_info->ConnectionIndex = index;
+ if (!DeviceIoControl(hub_device,
+ IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,
+ connection_info, size,
+ connection_info, size, &size, NULL)) {
+ free(connection_info);
+ free(connection_info_ex);
+ continue;
+ }
+
+ connection_info_ex->ConnectionIndex = connection_info->ConnectionIndex;
+ connection_info_ex->DeviceDescriptor = connection_info->DeviceDescriptor;
+ connection_info_ex->DeviceIsHub = connection_info->DeviceIsHub;
+ connection_info_ex->DeviceAddress = connection_info->DeviceAddress;
+ free(connection_info);
+ }
+
+ if (connection_info_ex->DeviceIsHub) {
+ /* recursively enumerate external hub */
+ PCHAR ext_hub_name;
+ if ((ext_hub_name = get_external_hub_name(hub_device, index))) {
+ snprintf(path, sizeof(path), "%s%d.",
+ parent_path, connection_info_ex->ConnectionIndex);
+ enumerate_hub(port, ext_hub_name, path);
+ }
+ free(connection_info_ex);
+ } else {
+ snprintf(path, sizeof(path), "%s%d",
+ parent_path, connection_info_ex->ConnectionIndex);
+
+ /* check if this device is the one we search for */
+ if (strcmp(path, port->usb_path)) {
+ free(connection_info_ex);
+ continue;
+ }
+
+ /* finally grab detailed informations regarding the device */
+ port->usb_address = connection_info_ex->DeviceAddress + 1;
+ port->usb_vid = connection_info_ex->DeviceDescriptor.idVendor;
+ port->usb_pid = connection_info_ex->DeviceDescriptor.idProduct;
+
+ if (connection_info_ex->DeviceDescriptor.iManufacturer)
+ port->usb_manufacturer = get_string_descriptor(hub_device,index,
+ connection_info_ex->DeviceDescriptor.iManufacturer);
+ if (connection_info_ex->DeviceDescriptor.iProduct)
+ port->usb_product = get_string_descriptor(hub_device, index,
+ connection_info_ex->DeviceDescriptor.iProduct);
+ if (connection_info_ex->DeviceDescriptor.iSerialNumber)
+ port->usb_serial = get_string_descriptor(hub_device, index,
+ connection_info_ex->DeviceDescriptor.iSerialNumber);
+
+ free(connection_info_ex);
+ break;
+ }
+ }
+}
+
+static void enumerate_hub(struct sp_port *port, char *hub_name,
+ char *parent_path)
+{
+ USB_NODE_INFORMATION hub_info;
+ HANDLE hub_device;
+ ULONG size = sizeof(hub_info);
+ char *device_name;
+
+ /* open the hub with its full name */
+ if (!(device_name = malloc(strlen("\\\\.\\") + strlen(hub_name) + 1)))
+ return;
+ strcpy(device_name, "\\\\.\\");
+ strcat(device_name, hub_name);
+ hub_device = CreateFile(device_name, GENERIC_WRITE, FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, 0, NULL);
+ free(device_name);
+ if (hub_device == INVALID_HANDLE_VALUE)
+ return;
+
+ /* get the number of ports of the hub */
+ if (DeviceIoControl(hub_device, IOCTL_USB_GET_NODE_INFORMATION,
+ &hub_info, size, &hub_info, size, &size, NULL))
+ /* enumarate the ports of the hub */
+ enumerate_hub_ports(port, hub_device,
+ hub_info.u.HubInformation.HubDescriptor.bNumberOfPorts, parent_path);
+
+ CloseHandle(hub_device);
+}
+
+static void enumerate_host_controller(struct sp_port *port,
+ HANDLE host_controller_device)
+{
+ char *root_hub_name;
+
+ if ((root_hub_name = get_root_hub_name(host_controller_device))) {
+ enumerate_hub(port, root_hub_name, "");
+ free(root_hub_name);
+ }
+}
+
+static void get_usb_details(struct sp_port *port, DEVINST dev_inst_match)
+{
+ HDEVINFO device_info;
+ SP_DEVINFO_DATA device_info_data;
+ ULONG i, size = 0;
+
+ device_info = SetupDiGetClassDevs(&GUID_CLASS_USB_HOST_CONTROLLER,NULL,NULL,
+ DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+ device_info_data.cbSize = sizeof(device_info_data);
+
+ for (i=0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) {
+ SP_DEVICE_INTERFACE_DATA device_interface_data;
+ PSP_DEVICE_INTERFACE_DETAIL_DATA device_detail_data;
+ DEVINST dev_inst = dev_inst_match;
+ HANDLE host_controller_device;
+
+ device_interface_data.cbSize = sizeof(device_interface_data);
+ if (!SetupDiEnumDeviceInterfaces(device_info, 0,
+ &GUID_CLASS_USB_HOST_CONTROLLER,
+ i, &device_interface_data))
+ continue;
+
+ if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data,
+ NULL, 0, &size, NULL)
+ && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ continue;
+
+ if (!(device_detail_data = malloc(size)))
+ continue;
+ device_detail_data->cbSize = sizeof(*device_detail_data);
+ if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data,
+ device_detail_data, size, &size,
+ NULL)) {
+ free(device_detail_data);
+ continue;
+ }
+
+ while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS
+ && dev_inst != device_info_data.DevInst) { }
+ if (dev_inst != device_info_data.DevInst) {
+ free(device_detail_data);
+ continue;
+ }
+
+ port->usb_bus = i + 1;
+
+ host_controller_device = CreateFile(device_detail_data->DevicePath,
+ GENERIC_WRITE, FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, 0, NULL);
+ if (host_controller_device != INVALID_HANDLE_VALUE) {
+ enumerate_host_controller(port, host_controller_device);
+ CloseHandle(host_controller_device);
+ }
+ free(device_detail_data);
+ }
+
+ SetupDiDestroyDeviceInfoList(device_info);
+ return;
+}
+
+#endif /* _WIN32 */
+
+static enum sp_return sp_get_port_details(struct sp_port *port)
+{
+ /* Description limited to 127 char,
+ anything longer would not be user friendly anyway */
+ char description[128];
+#ifndef _WIN32
+ int bus, address, vid, pid = -1;
+ char manufacturer[128], product[128], serial[128];
+ char baddr[32];
+#endif
+
+ port->description = NULL;
+ port->transport = SP_TRANSPORT_NATIVE;
+ port->usb_bus = -1;
+ port->usb_address = -1;
+ port->usb_vid = -1;
+ port->usb_pid = -1;
+ port->usb_manufacturer = NULL;
+ port->usb_product = NULL;
+ port->usb_serial = NULL;
+ port->bluetooth_address = NULL;
+
+#ifdef _WIN32
+ SP_DEVINFO_DATA device_info_data = { .cbSize = sizeof(device_info_data) };
+ HDEVINFO device_info;
+ int i;
+
+ device_info = SetupDiGetClassDevs(NULL, 0, 0,
+ DIGCF_PRESENT | DIGCF_ALLCLASSES);
+ if (device_info == INVALID_HANDLE_VALUE)
+ RETURN_FAIL("SetupDiGetClassDevs() failed");
+
+ for (i=0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) {
+ HKEY device_key;
+ DEVINST dev_inst;
+ char value[8], class[16];
+ DWORD size, type;
+ CONFIGRET cr;
+
+ /* check if this is the device we are looking for */
+ if (!(device_key = SetupDiOpenDevRegKey(device_info, &device_info_data,
+ DICS_FLAG_GLOBAL, 0,
+ DIREG_DEV, KEY_QUERY_VALUE)))
+ continue;
+ size = sizeof(value);
+ if (RegQueryValueExA(device_key, "PortName", NULL, &type, (LPBYTE)value,
+ &size) != ERROR_SUCCESS || type != REG_SZ)
+ continue;
+ RegCloseKey(device_key);
+ value[sizeof(value)-1] = 0;
+ if (strcmp(value, port->name))
+ continue;
+
+ /* check port transport type */
+ dev_inst = device_info_data.DevInst;
+ size = sizeof(class);
+ cr = CR_FAILURE;
+ while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS &&
+ (cr = CM_Get_DevNode_Registry_PropertyA(dev_inst,
+ CM_DRP_CLASS, 0, class, &size, 0)) != CR_SUCCESS) { }
+ if (cr == CR_SUCCESS) {
+ if (!strcmp(class, "USB"))
+ port->transport = SP_TRANSPORT_USB;
+ }
+
+ /* get port description (friendly name) */
+ dev_inst = device_info_data.DevInst;
+ size = sizeof(description);
+ while ((cr = CM_Get_DevNode_Registry_PropertyA(dev_inst,
+ CM_DRP_FRIENDLYNAME, 0, description, &size, 0)) != CR_SUCCESS
+ && CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS) { }
+ if (cr == CR_SUCCESS)
+ port->description = strdup(description);
+
+ /* get more informations for USB connected ports */
+ if (port->transport == SP_TRANSPORT_USB) {
+ char usb_path[MAX_USB_PATH] = "", tmp[MAX_USB_PATH];
+ char device_id[MAX_DEVICE_ID_LEN];
+
+ /* recurse over parents to build the USB device path */
+ dev_inst = device_info_data.DevInst;
+ do {
+ /* verify that this layer of the tree is USB related */
+ if (CM_Get_Device_IDA(dev_inst, device_id,
+ sizeof(device_id), 0) != CR_SUCCESS
+ || strncmp(device_id, "USB\\", 4))
+ continue;
+
+ /* discard one layer for composite devices */
+ char compat_ids[512], *p = compat_ids;
+ size = sizeof(compat_ids);
+ if (CM_Get_DevNode_Registry_PropertyA(dev_inst,
+ CM_DRP_COMPATIBLEIDS, 0,
+ &compat_ids,
+ &size, 0) == CR_SUCCESS) {
+ while (*p) {
+ if (!strncmp(p, "USB\\COMPOSITE", 13))
+ break;
+ p += strlen(p) + 1;
+ }
+ if (*p)
+ continue;
+ }
+
+ /* stop the recursion when reaching the USB root */
+ if (!strncmp(device_id, "USB\\ROOT", 8))
+ break;
+
+ /* prepend the address of current USB layer to the USB path */
+ DWORD address;
+ size = sizeof(address);
+ if (CM_Get_DevNode_Registry_PropertyA(dev_inst, CM_DRP_ADDRESS,
+ 0, &address, &size, 0) == CR_SUCCESS) {
+ strcpy(tmp, usb_path);
+ snprintf(usb_path, sizeof(usb_path), "%d%s%s",
+ (int)address, *tmp ? "." : "", tmp);
+ }
+ } while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS);
+
+ port->usb_path = strdup(usb_path);
+
+ /* wake up the USB device to be able to read string descriptor */
+ char *escaped_port_name;
+ HANDLE handle;
+ if (!(escaped_port_name = malloc(strlen(port->name) + 5)))
+ RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed");
+ sprintf(escaped_port_name, "\\\\.\\%s", port->name);
+ handle = CreateFile(escaped_port_name, GENERIC_READ, 0, 0,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, 0);
+ free(escaped_port_name);
+ CloseHandle(handle);
+
+ /* retrive USB device details from the device descriptor */
+ get_usb_details(port, device_info_data.DevInst);
+ }
+ break;
+ }
+#elif defined(__APPLE__)
+ CFMutableDictionaryRef classes;
+ io_iterator_t iter;
+ io_object_t ioport;
+ CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product;
+ Boolean result;
+ char path[PATH_MAX];
+
+ 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("Found port %s", path);
+
+ IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent);
+ 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("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("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("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("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("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("Found serial number %s", serial);
+ port->usb_serial = strdup(serial);
+ }
+ CFRelease(cf_property);
+ }
+
+ IOObjectRelease(ioport);
+ break;
+ }
+ IOObjectRelease(iter);
+#elif defined(__linux__)
+ const char dir_name[] = "/sys/class/tty/%s/device/%s%s";
+ char sub_dir[32] = "", file_name[PATH_MAX];
+ char *ptr, *dev = port->name + 5;
+ FILE *file;
+ int i, count;
+
+ if (strncmp(port->name, "/dev/", 5))
+ RETURN_ERROR(SP_ERR_ARG, "Device name not recognized (%s)", port->name);
+
+ snprintf(file_name, sizeof(file_name), "/sys/class/tty/%s", dev);
+ count = readlink(file_name, file_name, sizeof(file_name));
+ if (count <= 0 || count >= (int) sizeof(file_name)-1)
+ RETURN_ERROR(SP_ERR_ARG, "Device not found (%s)", port->name);
+ file_name[count] = 0;
+ if (strstr(file_name, "bluetooth"))
+ port->transport = SP_TRANSPORT_BLUETOOTH;
+ else if (strstr(file_name, "usb"))
+ port->transport = SP_TRANSPORT_USB;
+
+ if (port->transport == SP_TRANSPORT_USB) {
+ for (i=0; i<5; i++) {
+ strcat(sub_dir, "../");
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"busnum");
+ if (!(file = fopen(file_name, "r")))
+ continue;
+ count = fscanf(file, "%d", &bus);
+ fclose(file);
+ if (count != 1)
+ continue;
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"devnum");
+ if (!(file = fopen(file_name, "r")))
+ continue;
+ count = fscanf(file, "%d", &address);
+ fclose(file);
+ if (count != 1)
+ continue;
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"idVendor");
+ if (!(file = fopen(file_name, "r")))
+ continue;
+ count = fscanf(file, "%4x", &vid);
+ fclose(file);
+ if (count != 1)
+ continue;
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"idProduct");
+ if (!(file = fopen(file_name, "r")))
+ continue;
+ count = fscanf(file, "%4x", &pid);
+ fclose(file);
+ if (count != 1)
+ continue;
+
+ port->usb_bus = bus;
+ port->usb_address = address;
+ port->usb_vid = vid;
+ port->usb_pid = pid;
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"product");
+ if ((file = fopen(file_name, "r"))) {
+ if ((ptr = fgets(description, sizeof(description), file))) {
+ ptr = description + strlen(description) - 1;
+ if (ptr >= description && *ptr == '\n')
+ *ptr = 0;
+ port->description = strdup(description);
+ }
+ fclose(file);
+ }
+ if (!file || !ptr)
+ port->description = strdup(dev);
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"manufacturer");
+ if ((file = fopen(file_name, "r"))) {
+ if ((ptr = fgets(manufacturer, sizeof(manufacturer), file))) {
+ ptr = manufacturer + strlen(manufacturer) - 1;
+ if (ptr >= manufacturer && *ptr == '\n')
+ *ptr = 0;
+ port->usb_manufacturer = strdup(manufacturer);
+ }
+ fclose(file);
+ }
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"product");
+ if ((file = fopen(file_name, "r"))) {
+ if ((ptr = fgets(product, sizeof(product), file))) {
+ ptr = product + strlen(product) - 1;
+ if (ptr >= product && *ptr == '\n')
+ *ptr = 0;
+ port->usb_product = strdup(product);
+ }
+ fclose(file);
+ }
+
+ snprintf(file_name,sizeof(file_name),dir_name,dev,sub_dir,"serial");
+ if ((file = fopen(file_name, "r"))) {
+ if ((ptr = fgets(serial, sizeof(serial), file))) {
+ ptr = serial + strlen(serial) - 1;
+ if (ptr >= serial && *ptr == '\n')
+ *ptr = 0;
+ port->usb_serial = strdup(serial);
+ }
+ fclose(file);
+ }
+
+ break;
+ }
+ } else {
+ port->description = strdup(dev);
+
+ if (port->transport == SP_TRANSPORT_BLUETOOTH) {
+ snprintf(file_name, sizeof(file_name), dir_name, dev, "", "address");
+ if ((file = fopen(file_name, "r"))) {
+ if ((ptr = fgets(baddr, sizeof(baddr), file))) {
+ ptr = baddr + strlen(baddr) - 1;
+ if (ptr >= baddr && *ptr == '\n')
+ *ptr = 0;
+ port->bluetooth_address = strdup(baddr);
+ }
+ fclose(file);
+ }
+ }
+ }
+#else
+ DEBUG("Port details not supported on this platform");
+#endif
+
+ RETURN_OK();
+}
+
enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr)
{
struct sp_port *port;
+ enum sp_return ret;
int len;
TRACE("%s, %p", portname, port_ptr);
port->fd = -1;
#endif
+ if ((ret = sp_get_port_details(port)) != SP_OK) {
+ sp_free_port(port);
+ return ret;
+ }
+
*port_ptr = port;
RETURN_OK();
RETURN_VALUE("%s", port->name);
}
+char *sp_get_port_description(struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port || !port->description)
+ return NULL;
+
+ RETURN_VALUE("%s", port->description);
+}
+
+enum sp_transport sp_get_port_transport(struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port)
+ RETURN_ERROR(SP_ERR_ARG, "Null port");
+
+ RETURN_VALUE("%d", port->transport);
+}
+
+enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port,
+ int *usb_bus, int *usb_address)
+{
+ TRACE("%p", port);
+
+ if (!port)
+ RETURN_ERROR(SP_ERR_ARG, "Null port");
+ if (port->transport != SP_TRANSPORT_USB)
+ RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport");
+
+ if (usb_bus) *usb_bus = port->usb_bus;
+ if (usb_address) *usb_address = port->usb_address;
+
+ RETURN_OK();
+}
+
+enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port,
+ int *usb_vid, int *usb_pid)
+{
+ TRACE("%p", port);
+
+ if (!port)
+ RETURN_ERROR(SP_ERR_ARG, "Null port");
+ if (port->transport != SP_TRANSPORT_USB)
+ RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport");
+
+ if (usb_vid) *usb_vid = port->usb_vid;
+ if (usb_pid) *usb_pid = port->usb_pid;
+
+ RETURN_OK();
+}
+
+char *sp_get_port_usb_manufacturer(const struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer)
+ return NULL;
+
+ RETURN_VALUE("%s", port->usb_manufacturer);
+}
+
+char *sp_get_port_usb_product(const struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product)
+ return NULL;
+
+ RETURN_VALUE("%s", port->usb_product);
+}
+
+char *sp_get_port_usb_serial(const struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial)
+ return NULL;
+
+ RETURN_VALUE("%s", port->usb_serial);
+}
+
+char *sp_get_port_bluetooth_address(const struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port || port->transport != SP_TRANSPORT_BLUETOOTH
+ || !port->bluetooth_address)
+ return NULL;
+
+ RETURN_VALUE("%s", port->bluetooth_address);
+}
+
enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr)
{
TRACE("%p, %p", port, result_ptr);
if (port->name)
free(port->name);
+ if (port->description)
+ free(port->description);
+ if (port->usb_manufacturer)
+ free(port->usb_manufacturer);
+ if (port->usb_product)
+ free(port->usb_product);
+ if (port->usb_serial)
+ free(port->usb_serial);
+ if (port->bluetooth_address)
+ free(port->bluetooth_address);
+#ifdef _WIN32
+ if (port->usb_path)
+ free(port->usb_path);
+#endif
free(port);
projects / libserialport.git / commitdiff