diff options
Diffstat (limited to 'lib/usbhost/USB_Host_Shield_2.0/adk.h')
| -rw-r--r-- | lib/usbhost/USB_Host_Shield_2.0/adk.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/lib/usbhost/USB_Host_Shield_2.0/adk.h b/lib/usbhost/USB_Host_Shield_2.0/adk.h new file mode 100644 index 0000000000..4a2920b88a --- /dev/null +++ b/lib/usbhost/USB_Host_Shield_2.0/adk.h @@ -0,0 +1,140 @@ +/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. + +This software may be distributed and modified under the terms of the GNU +General Public License version 2 (GPL2) as published by the Free Software +Foundation and appearing in the file GPL2.TXT included in the packaging of +this file. Please note that GPL2 Section 2[b] requires that all works based +on this software must also be made publicly available under the terms of +the GPL2 ("Copyleft"). + +Contact information +------------------- + +Circuits At Home, LTD +Web : http://www.circuitsathome.com +e-mail : support@circuitsathome.com + */ + +/* Google ADK interface support header */ + +#if !defined(_ADK_H_) +#define _ADK_H_ + +#include "Usb.h" + +#define ADK_VID 0x18D1 +#define ADK_PID 0x2D00 +#define ADB_PID 0x2D01 + +#define XOOM //enables repeating getProto() and getConf() attempts +//necessary for slow devices such as Motorola XOOM +//defined by default, can be commented out to save memory + +/* requests */ + +#define ADK_GETPROTO 51 //check USB accessory protocol version +#define ADK_SENDSTR 52 //send identifying string +#define ADK_ACCSTART 53 //start device in accessory mode + +#define bmREQ_ADK_GET USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_VENDOR|USB_SETUP_RECIPIENT_DEVICE +#define bmREQ_ADK_SEND USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_VENDOR|USB_SETUP_RECIPIENT_DEVICE + +#define ACCESSORY_STRING_MANUFACTURER 0 +#define ACCESSORY_STRING_MODEL 1 +#define ACCESSORY_STRING_DESCRIPTION 2 +#define ACCESSORY_STRING_VERSION 3 +#define ACCESSORY_STRING_URI 4 +#define ACCESSORY_STRING_SERIAL 5 + +#define ADK_MAX_ENDPOINTS 3 //endpoint 0, bulk_IN, bulk_OUT + +class ADK; + +class ADK : public USBDeviceConfig, public UsbConfigXtracter { +private: + /* ID strings */ + const char* manufacturer; + const char* model; + const char* description; + const char* version; + const char* uri; + const char* serial; + + /* ADK proprietary requests */ + uint8_t getProto(uint8_t* adkproto); + uint8_t sendStr(uint8_t index, const char* str); + uint8_t switchAcc(void); + +protected: + static const uint8_t epDataInIndex; // DataIn endpoint index + static const uint8_t epDataOutIndex; // DataOUT endpoint index + + /* mandatory members */ + USB *pUsb; + uint8_t bAddress; + uint8_t bConfNum; // configuration number + + uint8_t bNumEP; // total number of EP in the configuration + bool ready; + + /* Endpoint data structure */ + EpInfo epInfo[ADK_MAX_ENDPOINTS]; + + void PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr); + +public: + ADK(USB *pUsb, const char* manufacturer, + const char* model, + const char* description, + const char* version, + const char* uri, + const char* serial); + + // Methods for receiving and sending data + uint8_t RcvData(uint16_t *nbytesptr, uint8_t *dataptr); + uint8_t SndData(uint16_t nbytes, uint8_t *dataptr); + + + // USBDeviceConfig implementation + uint8_t ConfigureDevice(uint8_t parent, uint8_t port, bool lowspeed); + uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed); + uint8_t Release(); + + virtual uint8_t Poll() { + return 0; + }; + + virtual uint8_t GetAddress() { + return bAddress; + }; + + virtual bool isReady() { + return ready; + }; + + virtual bool VIDPIDOK(uint16_t vid, uint16_t pid) { + return (vid == ADK_VID && (pid == ADK_PID || pid == ADB_PID)); + }; + + //UsbConfigXtracter implementation + void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep); +}; //class ADK : public USBDeviceConfig ... + +/* get ADK protocol version */ + +/* returns 2 bytes in *adkproto */ +inline uint8_t ADK::getProto(uint8_t* adkproto) { + return ( pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_GET, ADK_GETPROTO, 0, 0, 0, 2, 2, adkproto, NULL)); +} + +/* send ADK string */ +inline uint8_t ADK::sendStr(uint8_t index, const char* str) { + return ( pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_SEND, ADK_SENDSTR, 0, 0, index, strlen(str) + 1, strlen(str) + 1, (uint8_t*)str, NULL)); +} + +/* switch to accessory mode */ +inline uint8_t ADK::switchAcc(void) { + return ( pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_SEND, ADK_ACCSTART, 0, 0, 0, 0, 0, NULL, NULL)); +} + +#endif // _ADK_H_ |