mirror of
https://github.com/arduino/Arduino.git
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151 lines
4.5 KiB
C++
151 lines
4.5 KiB
C++
/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
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This software may be distributed and modified under the terms of the GNU
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General Public License version 2 (GPL2) as published by the Free Software
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Foundation and appearing in the file GPL2.TXT included in the packaging of
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this file. Please note that GPL2 Section 2[b] requires that all works based
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on this software must also be made publicly available under the terms of
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the GPL2 ("Copyleft").
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Contact information
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-------------------
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Circuits At Home, LTD
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Web : http://www.circuitsathome.com
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e-mail : support@circuitsathome.com
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*/
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/* Google ADK interface support header */
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#ifndef ADK_H_INCLUDED
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#define ADK_H_INCLUDED
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#include <stdint.h>
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#include "usb_ch9.h"
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#include "Usb.h"
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#include "hid.h"
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#include "Arduino.h"
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#include "confdescparser.h"
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#define ADK_VID 0x18D1
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#define ADK_PID 0x2D00
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#define ADB_PID 0x2D01
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#define XOOM //enables repeating getProto() and getConf() attempts
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//necessary for slow devices such as Motorola XOOM
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//defined by default, can be commented out to save memory
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/* Requests */
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#define ADK_GETPROTO 51 //check USB accessory protocol version
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#define ADK_SENDSTR 52 //send identifying string
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#define ADK_ACCSTART 53 //start device in accessory mode
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#define bmREQ_ADK_GET USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_VENDOR|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_ADK_SEND USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_VENDOR|USB_SETUP_RECIPIENT_DEVICE
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#define ACCESSORY_STRING_MANUFACTURER 0
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#define ACCESSORY_STRING_MODEL 1
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#define ACCESSORY_STRING_DESCRIPTION 2
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#define ACCESSORY_STRING_VERSION 3
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#define ACCESSORY_STRING_URI 4
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#define ACCESSORY_STRING_SERIAL 5
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#define ADK_MAX_ENDPOINTS 3 //endpoint 0, bulk_IN, bulk_OUT
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/**
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* \class ADK definition.
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*/
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class ADK : public USBDeviceConfig, public UsbConfigXtracter
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{
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private:
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/* ID strings */
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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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/* ADK proprietary requests */
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uint32_t getProto(uint8_t* adkproto);
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uint32_t sendStr(uint32_t index, const char* str);
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uint32_t switchAcc(void);
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protected:
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static const uint32_t epDataInIndex; // DataIn endpoint index
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static const uint32_t epDataOutIndex; // DataOUT endpoint index
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/* Mandatory members */
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USBHost *pUsb;
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uint32_t bAddress; // Device USB address
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uint32_t bConfNum; // configuration number
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uint32_t bNumEP; // total number of EP in the configuration
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bool ready;
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/* Endpoint data structure describing the device EP */
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EpInfo epInfo[ADK_MAX_ENDPOINTS];
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public:
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ADK(USBHost *pUsb, const char* pmanufacturer,
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const char* pmodel,
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const char* pdescription,
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const char* pversion,
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const char* puri,
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const char* pserial);
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// Methods for receiving and sending data
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uint32_t read(uint32_t *nreadbytes, uint32_t datalen, uint8_t *dataptr);
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uint32_t write(uint32_t datalen, uint8_t *dataptr);
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// USBDeviceConfig implementation
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virtual uint32_t Init(uint32_t parent, uint32_t port, uint32_t lowspeed);
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virtual uint32_t Release();
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virtual uint32_t Poll() { return 0; }; // not implemented
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virtual uint32_t GetAddress() { return bAddress; };
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virtual bool isReady() { return ready; };
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// UsbConfigXtracter implementation
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virtual void EndpointXtract(uint32_t conf, uint32_t iface, uint32_t alt, uint32_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
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};
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/**
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* \brief Get ADK protocol version.
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*
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* \param adkproto Empty buffer to be filled by getProto (2 bytes) with the ADK
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* protocol version value.
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*
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* \return 0 on success, error code otherwise.
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*/
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inline uint32_t ADK::getProto(uint8_t* adkproto)
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{
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return (pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_GET, ADK_GETPROTO, 0, 0, 0, 2, 2, adkproto, NULL));
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}
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/**
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* \brief Send ADK string.
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*
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* \param index String index.
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* \param str String to send.
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*
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* \return 0 on success, error code otherwise.
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*/
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inline uint32_t ADK::sendStr(uint32_t index, const char* str)
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{
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return (pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_SEND, ADK_SENDSTR, 0, 0, index, strlen(str) + 1, strlen(str) + 1, (uint8_t*)str, NULL));
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}
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/**
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* \brief Send a switch to accessory mode request.
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*
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* \return 0 on success, error code otherwise.
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*/
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inline uint32_t ADK::switchAcc(void)
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{
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return (pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_SEND, ADK_ACCSTART, 0, 0, 0, 0, 0, NULL, NULL));
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}
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#endif /* ADK_H_INCLUDED */
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