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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __AndroidAccessory_h__
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#define __AndroidAccessory_h__
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#include "Arduino.h"
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#include "Stream.h"
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#define DATA_BUFFER_SIZE 64
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class AndroidAccessory : public Stream {
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private:
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const char *manufacturer;
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const char *model;
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const char *description;
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const char *version;
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const char *uri;
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const char *serial;
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MAX3421E max;
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USB usb;
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bool connected;
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uint8_t in;
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uint8_t out;
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EP_RECORD epRecord[8];
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// TODO: Reuse `descBuff` after connection and/or stream descriptor?
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uint8_t descBuff[256];
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byte dataBuff[DATA_BUFFER_SIZE];
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unsigned int numBytesInDataBuff;
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unsigned int nextByteInDataBuffOffset;
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bool isAccessoryDevice(USB_DEVICE_DESCRIPTOR *desc)
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{
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return desc->idVendor == 0x18d1 &&
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(desc->idProduct == 0x2D00 || desc->idProduct == 0x2D01);
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}
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int getProtocol(byte addr);
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void sendString(byte addr, int index, const char *str);
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bool switchDevice(byte addr);
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bool findEndpoints(byte addr, EP_RECORD *inEp, EP_RECORD *outEp);
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bool configureAndroid(void);
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bool dataBufferIsEmpty();
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void refillDataBuffer();
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// Private because it bypasses the data buffer.
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int read(void *buff, int len, unsigned int nakLimit = USB_NAK_LIMIT);
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public:
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AndroidAccessory(const char *manufacturer,
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const char *model,
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const char *description,
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const char *version,
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const char *uri,
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const char *serial);
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void powerOn(void);
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bool isConnected(void);
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virtual size_t write(uint8_t *buff, size_t len);
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virtual int available(void);
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virtual int peek(void);
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virtual int read(void);
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virtual void flush();
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virtual size_t write(uint8_t);
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using Print::write; // pull in write(str) and write(buf, size) from Print
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};
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#endif /* __AndroidAccessory_h__ */
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