/* * 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 #include #include #include #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