5d1756ceb5
Add a 'host-features' command to get the features of the currently running host adb server. Abuse it to report libusb status. Bug: http://b/34983123 Test: adb host-features; adb kill-server; ADB_LIBUSB=1 adb start-server; adb host-features Change-Id: I0e8d503a2dbdff9002ebb6ce8a298498a9421422
108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define TRACE_TAG TRANSPORT
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#include "sysdeps.h"
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#include "transport.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "adb.h"
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static int remote_read(apacket *p, atransport *t)
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{
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if(usb_read(t->usb, &p->msg, sizeof(amessage))){
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D("remote usb: read terminated (message)");
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return -1;
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}
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if(check_header(p, t)) {
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D("remote usb: check_header failed");
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return -1;
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}
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if(p->msg.data_length) {
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if(usb_read(t->usb, p->data, p->msg.data_length)){
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D("remote usb: terminated (data)");
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return -1;
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}
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}
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if(check_data(p)) {
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D("remote usb: check_data failed");
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return -1;
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}
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return 0;
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}
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static int remote_write(apacket *p, atransport *t)
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{
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unsigned size = p->msg.data_length;
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if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
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D("remote usb: 1 - write terminated");
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return -1;
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}
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if(p->msg.data_length == 0) return 0;
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if(usb_write(t->usb, &p->data, size)) {
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D("remote usb: 2 - write terminated");
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return -1;
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}
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return 0;
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}
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static void remote_close(atransport *t)
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{
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usb_close(t->usb);
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t->usb = 0;
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}
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static void remote_kick(atransport *t)
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{
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usb_kick(t->usb);
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}
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void init_usb_transport(atransport *t, usb_handle *h, ConnectionState state)
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{
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D("transport: usb");
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t->close = remote_close;
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t->SetKickFunction(remote_kick);
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t->read_from_remote = remote_read;
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t->write_to_remote = remote_write;
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t->sync_token = 1;
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t->connection_state = state;
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t->type = kTransportUsb;
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t->usb = h;
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}
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int is_adb_interface(int usb_class, int usb_subclass, int usb_protocol)
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{
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return (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS && usb_protocol == ADB_PROTOCOL);
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}
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bool should_use_libusb() {
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#if defined(_WIN32) || !ADB_HOST
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return false;
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#else
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static bool enable = getenv("ADB_LIBUSB") && strcmp(getenv("ADB_LIBUSB"), "1") == 0;
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return enable;
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#endif
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}
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