USBHost library to new format

libraries/USBHost/src/adk.h

@@ -0,0 +1,150 @@
+/* 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 */
+
+#ifndef ADK_H_INCLUDED
+#define ADK_H_INCLUDED
+
+#include <stdint.h>
+#include "usb_ch9.h"
+#include "Usb.h"
+#include "hid.h"
+#include "Arduino.h"
+#include "confdescparser.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 definition.
+ */
+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 */
+	uint32_t getProto(uint8_t* adkproto);
+	uint32_t sendStr(uint32_t index, const char* str);
+	uint32_t switchAcc(void);
+
+protected:
+	static const uint32_t epDataInIndex;			// DataIn endpoint index
+	static const uint32_t epDataOutIndex;			// DataOUT endpoint index
+
+	/* Mandatory members */
+	USBHost		*pUsb;
+	uint32_t	bAddress;							// Device USB address
+	uint32_t	bConfNum;							// configuration number
+
+	uint32_t	bNumEP;								// total number of EP in the configuration
+	bool		ready;
+
+	/* Endpoint data structure describing the device EP */
+	EpInfo		epInfo[ADK_MAX_ENDPOINTS];
+
+public:
+	ADK(USBHost *pUsb, const char* pmanufacturer,
+                  const char* pmodel,
+                  const char* pdescription,
+                  const char* pversion,
+                  const char* puri,
+                  const char* pserial);
+
+	// Methods for receiving and sending data
+	uint32_t read(uint32_t *nreadbytes, uint32_t datalen, uint8_t *dataptr);
+	uint32_t write(uint32_t datalen, uint8_t *dataptr);
+
+
+	// USBDeviceConfig implementation
+	virtual uint32_t Init(uint32_t parent, uint32_t port, uint32_t lowspeed);
+	virtual uint32_t Release();
+	virtual uint32_t Poll() { return 0; };	// not implemented
+	virtual uint32_t GetAddress() { return bAddress; };
+	virtual bool isReady() { return ready; };
+
+	// UsbConfigXtracter implementation
+	virtual void EndpointXtract(uint32_t conf, uint32_t iface, uint32_t alt, uint32_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
+};
+
+/**
+ * \brief Get ADK protocol version.
+ *
+ * \param adkproto Empty buffer to be filled by getProto (2 bytes) with the ADK
+ * protocol version value.
+ *
+ * \return 0 on success, error code otherwise.
+ */
+inline uint32_t ADK::getProto(uint8_t* adkproto)
+{
+	return (pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_GET, ADK_GETPROTO, 0, 0, 0, 2, 2, adkproto, NULL));
+}
+
+/**
+ * \brief Send ADK string.
+ *
+ * \param index String index.
+ * \param str String to send.
+ *
+ * \return 0 on success, error code otherwise.
+ */
+inline uint32_t ADK::sendStr(uint32_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));
+}
+
+/**
+ * \brief Send a switch to accessory mode request.
+ *
+ * \return 0 on success, error code otherwise.
+ */
+inline uint32_t ADK::switchAcc(void)
+{
+	return (pUsb->ctrlReq(bAddress, 0, bmREQ_ADK_SEND, ADK_ACCSTART, 0, 0, 0, 0, 0, NULL, NULL));
+}
+
+#endif /* ADK_H_INCLUDED */