1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define TRACE_TAG TRANSPORT
18
19 #include "sysdeps.h"
20 #include "transport.h"
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "adb.h"
27
remote_read(apacket * p,atransport * t)28 static int remote_read(apacket *p, atransport *t)
29 {
30 if(usb_read(t->usb, &p->msg, sizeof(amessage))){
31 D("remote usb: read terminated (message)");
32 return -1;
33 }
34
35 if(check_header(p, t)) {
36 D("remote usb: check_header failed");
37 return -1;
38 }
39
40 if(p->msg.data_length) {
41 if(usb_read(t->usb, p->data, p->msg.data_length)){
42 D("remote usb: terminated (data)");
43 return -1;
44 }
45 }
46
47 if(check_data(p)) {
48 D("remote usb: check_data failed");
49 return -1;
50 }
51
52 return 0;
53 }
54
remote_write(apacket * p,atransport * t)55 static int remote_write(apacket *p, atransport *t)
56 {
57 unsigned size = p->msg.data_length;
58
59 if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
60 D("remote usb: 1 - write terminated");
61 return -1;
62 }
63 if(p->msg.data_length == 0) return 0;
64 if(usb_write(t->usb, &p->data, size)) {
65 D("remote usb: 2 - write terminated");
66 return -1;
67 }
68
69 return 0;
70 }
71
remote_close(atransport * t)72 static void remote_close(atransport *t)
73 {
74 usb_close(t->usb);
75 t->usb = 0;
76 }
77
remote_kick(atransport * t)78 static void remote_kick(atransport *t)
79 {
80 usb_kick(t->usb);
81 }
82
init_usb_transport(atransport * t,usb_handle * h,ConnectionState state)83 void init_usb_transport(atransport *t, usb_handle *h, ConnectionState state)
84 {
85 D("transport: usb");
86 t->close = remote_close;
87 t->SetKickFunction(remote_kick);
88 t->read_from_remote = remote_read;
89 t->write_to_remote = remote_write;
90 t->sync_token = 1;
91 t->connection_state = state;
92 t->type = kTransportUsb;
93 t->usb = h;
94 }
95
96 #if ADB_HOST
is_adb_interface(int vid,int pid,int usb_class,int usb_subclass,int usb_protocol)97 int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol)
98 {
99 return (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS && usb_protocol == ADB_PROTOCOL);
100 }
101 #endif
102