nmxact - Add ble_loop example.
Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/commit/2f603eac Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/tree/2f603eac Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/diff/2f603eac Branch: refs/heads/master Commit: 2f603eac7ab7ef428fe8b83a3050c6ef8007ef2c Parents: 2d55058 Author: Christopher Collins <[email protected]> Authored: Tue Apr 4 18:08:33 2017 -0700 Committer: Christopher Collins <[email protected]> Committed: Tue Apr 4 18:10:25 2017 -0700 ---------------------------------------------------------------------- nmxact/build-examples.sh | 1 + nmxact/example/ble_loop/ble_loop.go | 104 +++++++++++++++++++++++++++++++ 2 files changed, 105 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/blob/2f603eac/nmxact/build-examples.sh ---------------------------------------------------------------------- diff --git a/nmxact/build-examples.sh b/nmxact/build-examples.sh index 7898948..a751f5f 100755 --- a/nmxact/build-examples.sh +++ b/nmxact/build-examples.sh @@ -1,6 +1,7 @@ #!/bin/sh read -r -d '' exdirs <<-'EOS' + ble_loop ble_plain serial_plain EOS http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/blob/2f603eac/nmxact/example/ble_loop/ble_loop.go ---------------------------------------------------------------------- diff --git a/nmxact/example/ble_loop/ble_loop.go b/nmxact/example/ble_loop/ble_loop.go new file mode 100644 index 0000000..c76b11c --- /dev/null +++ b/nmxact/example/ble_loop/ble_loop.go @@ -0,0 +1,104 @@ +/** + * 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 main + +import ( + "fmt" + "os" + + "mynewt.apache.org/newtmgr/nmxact/bledefs" + "mynewt.apache.org/newtmgr/nmxact/nmble" + "mynewt.apache.org/newtmgr/nmxact/sesn" + "mynewt.apache.org/newtmgr/nmxact/xact" +) + +func main() { + // Initialize the BLE transport. + params := nmble.NewXportCfg() + params.SockPath = "/tmp/blehostd-uds" + params.BlehostdPath = "blehostd.elf" + params.DevPath = "/dev/cu.usbmodem142111" + + x, err := nmble.NewBleXport(params) + if err != nil { + fmt.Fprintf(os.Stderr, "error creating BLE transport: %s\n", + err.Error()) + os.Exit(1) + } + + // Start the BLE transport. + if err := x.Start(); err != nil { + fmt.Fprintf(os.Stderr, "error starting BLE transport: %s\n", + err.Error()) + os.Exit(1) + } + defer x.Stop() + + // Prepare a BLE session: + // * Plain NMP (not tunnelled over OIC). + // * We use a random address. + // * Peer has name "nimble-bleprph". + sc := sesn.NewSesnCfg() + sc.MgmtProto = sesn.MGMT_PROTO_NMP + sc.Ble.OwnAddrType = bledefs.BLE_ADDR_TYPE_RANDOM + sc.Ble.PeerSpec = sesn.BlePeerSpecName("nimble-bleprph") + + s, err := x.BuildSesn(sc) + if err != nil { + fmt.Fprintf(os.Stderr, "error creating BLE session: %s\n", err.Error()) + os.Exit(1) + } + + // Repeatedly: + // * Connect to peer if unconnected. + // * Send an echo command to peer. + // + // If blehostd crashes or the controller is unplugged, nmxact should + // recover on the next connect attempt. + for { + if !s.IsOpen() { + // Connect to the peer (open the session). + if err := s.Open(); err != nil { + fmt.Fprintf(os.Stderr, "error starting BLE session: %s\n", + err.Error()) + continue + } + } + + // Send an echo command to the peer. + c := xact.NewEchoCmd() + c.Payload = "hello" + + res, err := c.Run(s) + if err != nil { + fmt.Fprintf(os.Stderr, "error executing echo command: %s\n", + err.Error()) + continue + } + + if res.Status() != 0 { + fmt.Printf("Peer responded negatively to echo command; status=%d\n", + res.Status()) + } + + eres := res.(*xact.EchoResult) + fmt.Printf("Peer echoed back: %s\n", eres.Rsp.Payload) + } +}
