1 /*
2  * Copyright (C) 2011 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 #ifndef __AndroidAccessory_h__
18 #define __AndroidAccessory_h__
19 
20 #include "Arduino.h"
21 
22 class AndroidAccessory {
23 private:
24     const char *manufacturer;
25     const char *model;
26     const char *description;
27     const char *version;
28     const char *uri;
29     const char *serial;
30 
31     MAX3421E max;
32     USB usb;
33     bool connected;
34     uint8_t in;
35     uint8_t out;
36 
37     EP_RECORD epRecord[8];
38 
39     uint8_t descBuff[256];
40 
isAccessoryDevice(USB_DEVICE_DESCRIPTOR * desc)41     bool isAccessoryDevice(USB_DEVICE_DESCRIPTOR *desc)
42     {
43         return desc->idVendor == 0x18d1 &&
44             (desc->idProduct == 0x2D00 || desc->idProduct == 0x2D01);
45     }
46 
47     int getProtocol(byte addr);
48     void sendString(byte addr, int index, const char *str);
49     bool switchDevice(byte addr);
50     bool findEndpoints(byte addr, EP_RECORD *inEp, EP_RECORD *outEp);
51     bool configureAndroid(void);
52 
53 public:
54     AndroidAccessory(const char *manufacturer,
55                      const char *model,
56                      const char *description,
57                      const char *version,
58                      const char *uri,
59                      const char *serial);
60 
61     void powerOn(void);
62 
63     bool isConnected(void);
64     int read(void *buff, int len, unsigned int nakLimit = USB_NAK_LIMIT);
65     int write(void *buff, int len);
66 };
67 
68 #endif /* __AndroidAccessory_h__ */
69