USBBusInterface.h

00001 /* USBBusInterface.h */
00002 /* USB Bus Interface */
00003 /* Copyright (c) 2011 ARM Limited. All rights reserved. */
00004 
00005 #ifndef USBBUSINTERFACE_H
00006 #define USBBUSINTERFACE_H
00007 
00008 #include "mbed.h"
00009 #include "USBEndpoints.h"
00010 
00011 class USBHAL {
00012 public:
00013     /* Configuration */
00014     USBHAL();
00015     ~USBHAL();
00016     void connect(void);
00017     void disconnect(void);
00018     void configureDevice(void);
00019     void unconfigureDevice(void);
00020     void setAddress(uint8_t address);
00021     void remoteWakeup(void);
00022 
00023     /* Endpoint 0 */
00024     void EP0setup(uint8_t *buffer);
00025     void EP0read(void);
00026     uint32_t EP0getReadResult(uint8_t *buffer);
00027     void EP0write(uint8_t *buffer, uint32_t size);
00028     void EP0getWriteResult(void);
00029     void EP0stall(void);
00030 
00031     /* Other endpoints */
00032     EP_STATUS endpointRead(uint8_t endpoint, uint32_t maximumSize);
00033     EP_STATUS endpointReadResult(uint8_t endpoint, uint8_t *data, uint32_t *bytesRead);
00034     EP_STATUS endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size);
00035     EP_STATUS endpointWriteResult(uint8_t endpoint);
00036     void stallEndpoint(uint8_t endpoint);
00037     void unstallEndpoint(uint8_t endpoint);
00038     bool realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t options);
00039     bool getEndpointStallState(unsigned char endpoint);
00040     uint32_t endpointReadcore(uint8_t endpoint, uint8_t *buffer);
00041     
00042 protected:
00043     virtual void busReset(void){};
00044     virtual void EP0setupCallback(void){};
00045     virtual void EP0out(void){};
00046     virtual void EP0in(void){};
00047     virtual void connectStateChanged(unsigned int connected){};
00048     virtual void suspendStateChanged(unsigned int suspended){};
00049     virtual void SOF(int frameNumber){};
00050     virtual bool EP1_OUT_callback(){return false;};
00051     virtual bool EP1_IN_callback(){return false;};
00052     virtual bool EP2_OUT_callback(){return false;};
00053     virtual bool EP2_IN_callback(){return false;};
00054     virtual bool EP3_OUT_callback(){return false;};
00055     virtual bool EP3_IN_callback(){return false;};
00056     
00057 private:
00058     void usbisr(void);
00059     static void _usbisr(void);
00060     static USBHAL * instance;
00061 };
00062 #endif
00063 
00064