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#include <stdio.h> 18#include <stdlib.h> 19#include <string.h> 20 21#include <sysdeps.h> 22 23#define TRACE_TAG TRACE_TRANSPORT 24#include "adb.h" 25 26#if ADB_HOST 27#include "usb_vendors.h" 28#endif 29 30#ifdef HAVE_BIG_ENDIAN 31#define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24) 32static inline void fix_endians(apacket *p) 33{ 34 p->msg.command = H4(p->msg.command); 35 p->msg.arg0 = H4(p->msg.arg0); 36 p->msg.arg1 = H4(p->msg.arg1); 37 p->msg.data_length = H4(p->msg.data_length); 38 p->msg.data_check = H4(p->msg.data_check); 39 p->msg.magic = H4(p->msg.magic); 40} 41unsigned host_to_le32(unsigned n) 42{ 43 return H4(n); 44} 45#else 46#define fix_endians(p) do {} while (0) 47unsigned host_to_le32(unsigned n) 48{ 49 return n; 50} 51#endif 52 53static int remote_read(apacket *p, atransport *t) 54{ 55 if(usb_read(t->usb, &p->msg, sizeof(amessage))){ 56 D("remote usb: read terminated (message)\n"); 57 return -1; 58 } 59 60 fix_endians(p); 61 62 if(check_header(p)) { 63 D("remote usb: check_header failed\n"); 64 return -1; 65 } 66 67 if(p->msg.data_length) { 68 if(usb_read(t->usb, p->data, p->msg.data_length)){ 69 D("remote usb: terminated (data)\n"); 70 return -1; 71 } 72 } 73 74 if(check_data(p)) { 75 D("remote usb: check_data failed\n"); 76 return -1; 77 } 78 79 return 0; 80} 81 82static int remote_write(apacket *p, atransport *t) 83{ 84 unsigned size = p->msg.data_length; 85 86 fix_endians(p); 87 88 if(usb_write(t->usb, &p->msg, sizeof(amessage))) { 89 D("remote usb: 1 - write terminated\n"); 90 return -1; 91 } 92 if(p->msg.data_length == 0) return 0; 93 if(usb_write(t->usb, &p->data, size)) { 94 D("remote usb: 2 - write terminated\n"); 95 return -1; 96 } 97 98 return 0; 99} 100 101static void remote_close(atransport *t) 102{ 103 usb_close(t->usb); 104 t->usb = 0; 105} 106 107static void remote_kick(atransport *t) 108{ 109 usb_kick(t->usb); 110} 111 112void init_usb_transport(atransport *t, usb_handle *h, int state) 113{ 114 D("transport: usb\n"); 115 t->close = remote_close; 116 t->kick = remote_kick; 117 t->read_from_remote = remote_read; 118 t->write_to_remote = remote_write; 119 t->sync_token = 1; 120 t->connection_state = state; 121 t->type = kTransportUsb; 122 t->usb = h; 123 124#if ADB_HOST 125 HOST = 1; 126#else 127 HOST = 0; 128#endif 129} 130 131#if ADB_HOST 132int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol) 133{ 134 unsigned i; 135 for (i = 0; i < vendorIdCount; i++) { 136 if (vid == vendorIds[i]) { 137 if (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS && 138 usb_protocol == ADB_PROTOCOL) { 139 return 1; 140 } 141 142 return 0; 143 } 144 } 145 146 return 0; 147} 148#endif 149