| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package config |
| |
| import ( |
| "fmt" |
| "strconv" |
| "strings" |
| |
| "mynewt.apache.org/newtmgr/newtmgr/nmutil" |
| "mynewt.apache.org/newtmgr/nmxact/nmserial" |
| "mynewt.apache.org/newt/util" |
| ) |
| |
| func einvalSerialConnString(f string, args ...interface{}) error { |
| suffix := fmt.Sprintf(f, args) |
| return util.FmtNewtError("Invalid serial connstring; %s", suffix) |
| } |
| |
| func ParseSerialConnString(cs string) (*nmserial.XportCfg, error) { |
| sc := nmserial.NewXportCfg() |
| sc.Baud = 115200 |
| sc.ReadTimeout = nmutil.TxOptions().Timeout |
| |
| parts := strings.Split(cs, ",") |
| for _, p := range parts { |
| kv := strings.SplitN(p, "=", 2) |
| // Handle old-style conn string (single token indicating dev file). |
| if len(kv) == 1 { |
| kv = []string{"dev", kv[0]} |
| } |
| |
| k := kv[0] |
| v := kv[1] |
| |
| switch k { |
| case "dev": |
| sc.DevPath = v |
| |
| case "baud": |
| var err error |
| sc.Baud, err = strconv.Atoi(v) |
| if err != nil { |
| return sc, einvalSerialConnString("Invalid baud: %s", v) |
| } |
| |
| case "mtu": |
| var err error |
| sc.Mtu, err = strconv.Atoi(v) |
| if err != nil { |
| return sc, einvalSerialConnString("Invalid mtu: %s", v) |
| } |
| |
| default: |
| return sc, einvalSerialConnString("Unrecognized key: %s", k) |
| } |
| } |
| |
| return sc, nil |
| } |
| |
| func BuildSerialXport(sc *nmserial.XportCfg) (*nmserial.SerialXport, error) { |
| sx := nmserial.NewSerialXport(sc) |
| if err := sx.Start(); err != nil { |
| return nil, util.ChildNewtError(err) |
| } |
| |
| return sx, nil |
| } |