Diff: HID/USBDevice.h

Revision:

0:cbe01b678bd4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HID/USBDevice.h	Sat Nov 19 22:54:22 2011 +0000
@@ -0,0 +1,231 @@
+/* USBDevice.h */
+/* Generic USB device */
+/* Copyright (c) 2011 ARM Limited. All rights reserved. */
+
+#ifndef USBDEVICE_H
+#define USBDEVICE_H
+
+#include "mbed.h"
+#include "USBDevice_Types.h"
+#include "USBBusInterface.h"
+
+
+
+class USBDevice: public USBHAL
+{
+public:
+    USBDevice(uint16_t vendor_id, uint16_t product_id, uint16_t product_release);
+    
+    /**
+    * Check if the device is configured
+    *
+    * @returns true if configured, false otherwise
+    */
+    bool configured(void);
+    
+    /**
+    * Connect a device
+    */
+    void connect(void);
+    
+    /**
+    * Disconnect a device
+    */
+    void disconnect(void);
+    
+    /**
+    * Add an endpoint
+    *
+    * @param endpoint endpoint which will be added
+    * @param maxPacket Maximum size of a packet which can be sent for this endpoint
+    * @returns true if successful, false otherwise
+    */
+    bool addEndpoint(uint8_t endpoint, uint32_t maxPacket);
+
+    /**
+    * Start a reading on a certain endpoint.
+    * You can access the result of the reading by USBDevice_read
+    *
+    * @param endpoint endpoint which will be read
+    * @param maxSize the maximum length that can be read
+    * @return true if successful
+    */
+    bool readStart(uint8_t endpoint, uint16_t maxSize);
+    
+    /**
+    * Read a certain endpoint. Before calling this function, USBUSBDevice_readStart
+    * must be called.
+    *
+    * Warning: blocking
+    *
+    * @param endpoint endpoint which will be read
+    * @param buffer buffer will be filled with the data received
+    * @param size the number of bytes read will be stored in *size
+    * @param maxSize the maximum length that can be read
+    * @returns true if successful
+    */
+    bool read(uint8_t endpoint, uint8_t * buffer, uint16_t * size, uint16_t maxSize);
+    
+    /**
+    * Read a certain endpoint.
+    *
+    * Warning: non blocking
+    *
+    * @param endpoint endpoint which will be read
+    * @param buffer buffer will be filled with the data received (if data are available) 
+    * @param size the number of bytes read will be stored in *size
+    * @param maxSize the maximum length that can be read
+    * @returns true if successful
+    */
+    bool readNB(uint8_t endpoint, uint8_t * buffer, uint16_t * size, uint16_t maxSize);
+    
+    /**
+    * Write a certain endpoint.
+    *
+    * Warning: blocking
+    *
+    * @param endpoint endpoint to write
+    * @param buffer data contained in buffer will be write
+    * @param size the number of bytes to write
+    * @param maxSize the maximum length that can be written on this endpoint
+    */
+    bool write(uint8_t endpoint, uint8_t * buffer, uint16_t size, uint16_t maxSize);
+    bool writeNB(uint8_t endpoint, uint8_t * buffer, uint16_t size, uint16_t maxSize);
+
+    
+    /**
+    * Called by USBDevice layer on bus reset. Warning: Called in ISR context
+    *
+    * May be used to reset state
+    */
+    virtual void USBCallback_busReset(void) {};
+    
+    /**
+    * Called by USBDevice on Endpoint0 request. Warning: Called in ISR context
+    * This is used to handle extensions to standard requests
+    * and class specific requests
+    *
+    * @returns true if class handles this request
+    */
+    virtual bool USBCallback_request() { return false; };   
+    
+    /**
+    * Called by USBDevice on Endpoint0 request completion
+    * if the 'notify' flag has been set to true. Warning: Called in ISR context
+    *
+    * In this case it is used to indicate that a HID report has
+    * been received from the host on endpoint 0
+    */
+    virtual void USBCallback_requestCompleted() {};
+    
+    /**
+    * Called by USBDevice layer. Set configuration of the device.
+    * For instance, you can add all endpoints that you need on this function.
+    *
+    * @param configuration Number of the configuration
+    */
+    virtual bool USBCallback_setConfiguration(uint8_t configuration) { return false; };
+
+    /**
+    * Get device descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
+    *
+    * @returns pointer to the device descriptor
+    */
+    virtual uint8_t * deviceDesc();
+    
+    /**
+    * Get configuration descriptor
+    *
+    * @returns pointer to the configuration descriptor
+    */
+    virtual uint8_t * configurationDesc(){return NULL;};
+    
+    /**
+    * Get string lang id descriptor
+    *
+    * @return pointer to the string lang id descriptor
+    */
+    virtual uint8_t * stringLangidDesc();
+    
+    /**
+    * Get string manufacturer descriptor
+    *
+    * @returns pointer to the string manufacturer descriptor
+    */
+    virtual uint8_t * stringImanufacturerDesc();
+    
+    /**
+    * Get string product descriptor
+    *
+    * @returns pointer to the string product descriptor
+    */
+    virtual uint8_t * stringIproductDesc();
+    
+    /**
+    * Get string serial descriptor
+    *
+    * @returns pointer to the string serial descriptor
+    */
+    virtual uint8_t * stringIserialDesc();
+    
+    /**
+    * Get string configuration descriptor
+    *
+    * @returns pointer to the string configuration descriptor
+    */
+    virtual uint8_t * stringIConfigurationDesc();
+    
+    /**
+    * Get string interface descriptor
+    *
+    * @returns pointer to the string interface descriptor
+    */
+    virtual uint8_t * stringIinterfaceDesc();
+    
+    /**
+    * Get the length of the report descriptor
+    *
+    * @returns length of the report descriptor
+    */
+    virtual uint16_t reportDescLength() { return 0; };
+    
+
+
+protected:
+    virtual void busReset(void);
+    virtual void EP0setupCallback(void);
+    virtual void EP0out(void);
+    virtual void EP0in(void);
+    virtual void SOF(int frameNumber);
+    virtual void connectStateChanged(unsigned int connected);
+    virtual void suspendStateChanged(unsigned int suspended);
+    uint8_t * findDescriptor(uint8_t descriptorType);
+    CONTROL_TRANSFER * getTransferPtr(void);
+    
+    uint16_t VENDOR_ID;
+    uint16_t PRODUCT_ID;
+    uint16_t PRODUCT_RELEASE;
+
+private:
+    bool addRateFeedbackEndpoint(uint8_t endpoint, uint32_t maxPacket);
+    bool requestGetDescriptor(void);
+    bool controlOut(void);
+    bool controlIn(void);
+    bool requestSetAddress(void);
+    bool requestSetConfiguration(void);
+    bool requestSetFeature(void);
+    bool requestClearFeature(void);
+    bool requestGetStatus(void);
+    bool requestSetup(void);
+    bool controlSetup(void);
+    void decodeSetupPacket(uint8_t *data, SETUP_PACKET *packet);
+    bool requestGetConfiguration(void);
+    bool requestGetInterface(void);
+    bool requestSetInterface(void);
+
+    CONTROL_TRANSFER transfer;
+    USB_DEVICE device;
+};
+
+
+#endif