114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
//
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// Copyright 2014-2016 Lars Knudsen, Cristian Maglie. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//
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// +build ignore
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package serial
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import (
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"log"
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"regexp"
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ole "github.com/go-ole/go-ole"
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"github.com/go-ole/go-ole/oleutil"
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)
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func init() {
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err := ole.CoInitializeEx(0, ole.COINIT_MULTITHREADED)
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if err != nil {
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log.Fatal("Init error: ", err)
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}
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}
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func nativeGetDetailedPortsList() ([]*PortDetails, error) {
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unknown, err := oleutil.CreateObject("WbemScripting.SWbemLocator")
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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defer unknown.Release()
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wmi, err := unknown.QueryInterface(ole.IID_IDispatch)
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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defer wmi.Release()
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serviceRaw, err := wmi.CallMethod("ConnectServer")
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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service := serviceRaw.ToIDispatch()
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defer service.Release()
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query := "SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode = 0 and Name like '%(COM%'"
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queryResult, err := oleutil.CallMethod(service, "ExecQuery", query)
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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result := queryResult.ToIDispatch()
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defer result.Release()
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countVar, err := result.GetProperty("Count")
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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count := int(countVar.Val)
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res := []*PortDetails{}
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// Retrieve all items
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for i := 0; i < count; i++ {
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itemRaw, err := result.CallMethod("ItemIndex", i)
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if err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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item := itemRaw.ToIDispatch()
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defer item.Release()
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detail := &PortDetails{}
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if err := getPortDetails(item, detail); err != nil {
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return nil, &PortError{code: ErrorEnumeratingPorts, causedBy: err}
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}
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// SerialPort{Path: path, VendorId: VID, ProductId: PID, DisplayName: displayName.ToString()}
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res = append(res, detail)
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}
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return res, nil
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}
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func getPortDetails(item *ole.IDispatch, res *PortDetails) error {
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// Find port name
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itemName, err := item.GetProperty("Name")
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if err != nil {
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return err
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}
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re := regexp.MustCompile("\\((COM[0-9]+)\\)").FindAllStringSubmatch(itemName.ToString(), 1)
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if re == nil || len(re[0]) < 2 {
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// Discard items that are not serial ports
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return nil
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}
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res.Name = re[0][1]
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//itemPnPDeviceID, err := item.GetProperty("PnPDeviceID")
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//if err != nil {
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// return err
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//}
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//PnPDeviceID := itemPnPDeviceID.ToString()
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itemDeviceID, err := item.GetProperty("DeviceID")
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if err != nil {
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return err
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}
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parseDeviceID(itemDeviceID.ToString(), res)
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itemManufacturer, err := item.GetProperty("Product")
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if err != nil {
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return err
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}
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res.Manufacturer = itemManufacturer.ToString()
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return nil
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}
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