u-tools/apps/adb/transport_usb.c

   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"  //liunote <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 /* XXX better define? */
  31 #ifdef __ppc__
  32 #define H4(x)   (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24)
  33 static inline void fix_endians(apacket *p)
  34 {
  35     p->msg.command     = H4(p->msg.command);
  36     p->msg.arg0        = H4(p->msg.arg0);
  37     p->msg.arg1        = H4(p->msg.arg1);
  38     p->msg.data_length = H4(p->msg.data_length);
  39     p->msg.data_check  = H4(p->msg.data_check);
  40     p->msg.magic       = H4(p->msg.magic);
  41 }
  42 unsigned host_to_le32(unsigned n)
  43 {
  44     return H4(n);
  45 }
  46 #else
  47 #define fix_endians(p) do {} while (0)
  48 unsigned host_to_le32(unsigned n)
  49 {
  50     return n;
  51 }
  52 #endif
  53
  54 static int remote_read(apacket *p, atransport *t)
  55 {
  56     if(usb_read(t->usb, &p->msg, sizeof(amessage))){
  57         D("remote usb: read terminated (message)\n");
  58         return -1;
  59     }
  60
  61     fix_endians(p);
  62
  63     if(check_header(p)) {
  64         D("remote usb: check_header failed\n");
  65         return -1;
  66     }
  67
  68     if(p->msg.data_length) {
  69         if(usb_read(t->usb, p->data, p->msg.data_length)){
  70             D("remote usb: terminated (data)\n");
  71             return -1;
  72         }
  73     }
  74
  75     if(check_data(p)) {
  76         D("remote usb: check_data failed\n");
  77         return -1;
  78     }
  79
  80     return 0;
  81 }
  82
  83 static int remote_write(apacket *p, atransport *t)
  84 {
  85     unsigned size = p->msg.data_length;
  86
  87     fix_endians(p);
  88
  89     if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
  90         D("remote usb: 1 - write terminated\n");
  91         return -1;
  92     }
  93     if(p->msg.data_length == 0) return 0;
  94     if(usb_write(t->usb, &p->data, size)) {
  95         D("remote usb: 2 - write terminated\n");
  96         return -1;
  97     }
  98
  99     return 0;
 100 }
 101
 102 static void remote_close(atransport *t)
 103 {
 104     usb_close(t->usb);
 105     t->usb = 0;
 106 }
 107
 108 static void remote_kick(atransport *t)
 109 {
 110     usb_kick(t->usb);
 111 }
 112
 113 void init_usb_transport(atransport *t, usb_handle *h, int state)
 114 {
 115     D("transport: usb\n");
 116     t->close = remote_close;
 117     t->kick = remote_kick;
 118     t->read_from_remote = remote_read;
 119     t->write_to_remote = remote_write;
 120     t->sync_token = 1;
 121     t->connection_state = state;
 122     t->type = kTransportUsb;
 123     t->usb = h;
 124
 125     printf("liu: connect state =%d\n",state);
 126
 127 #if ADB_HOST
 128     HOST = 1;
 129 #else
 130     HOST = 0;
 131 #endif
 132 }
 133
 134 #if ADB_HOST
 135 int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol)
 136 {
 137     unsigned i;
 138     for (i = 0; i < vendorIdCount; i++) {
 139         if (vid == vendorIds[i]) {
 140             if (usb_class == ADB_CLASS && usb_subclass == ADB_SUBCLASS &&
 141                     usb_protocol == ADB_PROTOCOL) {
 142                 return 1;
 143             }
 144
 145             return 0;
 146         }
 147     }
 148
 149     return 0;
 150 }
 151 #endif