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- /*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed 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.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sysdeps.h>
- #define TRACE_TAG TRACE_TRANSPORT
- #include "adb.h"
- #if ADB_HOST
- #include "usb_vendors.h"
- #endif
- #ifdef HAVE_BIG_ENDIAN
- #define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24)
- static inline void fix_endians(apacket *p)
- {
- p->msg.command = H4(p->msg.command);
- p->msg.arg0 = H4(p->msg.arg0);
- p->msg.arg1 = H4(p->msg.arg1);
- p->msg.data_length = H4(p->msg.data_length);
- p->msg.data_check = H4(p->msg.data_check);
- p->msg.magic = H4(p->msg.magic);
- }
- unsigned host_to_le32(unsigned n)
- {
- return H4(n);
- }
- #else
- #define fix_endians(p) do {} while (0)
- unsigned host_to_le32(unsigned n)
- {
- return n;
- }
- #endif
- static int remote_read(apacket *p, atransport *t)
- {
- if(usb_read(t->usb, &p->msg, sizeof(amessage))){
- D("remote usb: read terminated (message)\n");
- return -1;
- }
- fix_endians(p);
- if(check_header(p)) {
- D("remote usb: check_header failed\n");
- return -1;
- }
- if(p->msg.data_length) {
- if(usb_read(t->usb, p->data, p->msg.data_length)){
- D("remote usb: terminated (data)\n");
- return -1;
- }
- }
- if(check_data(p)) {
- D("remote usb: check_data failed\n");
- return -1;
- }
- return 0;
- }
- static int remote_write(apacket *p, atransport *t)
- {
- unsigned size = p->msg.data_length;
- fix_endians(p);
- if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
- D("remote usb: 1 - write terminated\n");
- return -1;
- }
- if(p->msg.data_length == 0) return 0;
- if(usb_write(t->usb, &p->data, size)) {
- D("remote usb: 2 - write terminated\n");
- return -1;
- }
- return 0;
- }
- static void remote_close(atransport *t)
- {
- usb_close(t->usb);
- t->usb = 0;
- }
- static void remote_kick(atransport *t)
- {
- usb_kick(t->usb);
- }
- void init_usb_transport(atransport *t, usb_handle *h, int state)
- {
- D("transport: usb\n");
- t->close = remote_close;
- t->kick = remote_kick;
- t->read_from_remote = remote_read;
- t->write_to_remote = remote_write;
- t->sync_token = 1;
- t->connection_state = state;
- t->type = kTransportUsb;
- t->usb = h;
- #if ADB_HOST
- HOST = 1;
- #else
- HOST = 0;
- #endif
- }
- #if ADB_HOST
- int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol)
- {
- unsigned i;
- for (i = 0; i < vendorIdCount; i++) {
- if (vid == vendorIds[i]) {
- if (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS &&
- usb_protocol == ADB_PROTOCOL) {
- return 1;
- }
- return 0;
- }
- }
- return 0;
- }
- #endif
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