Diff: USBDevice/USBHID/USBHID.h

Revision:

52:63f0a9b45f0c

Child:

53:02408ec83097

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBHID/USBHID.h	Thu Feb 11 18:12:52 2016 +0000
@@ -0,0 +1,221 @@
+/* Copyright (c) 2010-2011 mbed.org, MIT License
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+* and associated documentation files (the "Software"), to deal in the Software without
+* restriction, including without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or
+* substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef USB_HID_H
+#define USB_HID_H
+
+/* These headers are included for child class. */
+#include "USBEndpoints.h"
+#include "USBDescriptor.h"
+#include "USBDevice_Types.h"
+
+#include "USBHID_Types.h"
+#include "USBDevice.h"
+
+
+/**
+ * USBHID example
+ * @code
+ * #include "mbed.h"
+ * #include "USBHID.h"
+ *
+ * USBHID hid;
+ * HID_REPORT recv;
+ * BusOut leds(LED1,LED2,LED3,LED4);
+ *
+ * int main(void) {
+ *    while (1) {
+ *        hid.read(&recv);
+ *        leds = recv.data[0];
+ *    }
+ * }
+ * @endcode
+ */
+
+class USBHID: public USBDevice {
+public:
+
+    /**
+    * Constructor
+    *
+    * @param output_report_length Maximum length of a sent report (up to 64 bytes) (default: 64 bytes)
+    * @param input_report_length Maximum length of a received report (up to 64 bytes) (default: 64 bytes)
+    * @param vendor_id Your vendor_id
+    * @param product_id Your product_id
+    * @param product_release Your preoduct_release
+    * @param connect Connect the device
+    */
+    USBHID(uint8_t output_report_length = 64, uint8_t input_report_length = 64, uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0006, uint16_t product_release = 0x0001, bool connect = true);
+
+
+    /**
+    * Send a Report. warning: blocking
+    *
+    * @param report Report which will be sent (a report is defined by all data and the length)
+    * @returns true if successful
+    */
+    bool send(HID_REPORT *report);
+
+
+    /**
+    * Send a Report. warning: non blocking
+    *
+    * @param report Report which will be sent (a report is defined by all data and the length)
+    * @returns true if successful
+    */
+    bool sendNB(HID_REPORT *report);
+    
+    /**
+    * Send a Report with timeout.  Blocks until the report has been sent or the timeout
+    * expires, whichever comes first.
+    *
+    * @param report Report to be sent
+    * @param timeout_ms Timeout in milliseconds
+    * @returns true if successful
+    */
+    bool sendTO(HID_REPORT *report, int timeout_ms);
+
+    /**
+    * Read a report: blocking
+    *
+    * @param report pointer to the report to fill
+    * @returns true if successful
+    */
+    bool read(HID_REPORT * report);
+
+    /**
+    * Read a report: non blocking
+    *
+    * @param report pointer to the report to fill
+    * @returns true if successful
+    */
+    bool readNB(HID_REPORT * report);
+
+protected:
+    uint16_t reportLength;
+
+    /*
+    * Get the Report descriptor
+    *
+    * @returns pointer to the report descriptor
+    */
+    virtual uint8_t * reportDesc();
+    virtual uint8_t * reportDescN(int idx) { return reportDesc(); /*$$$idx == 0 ? reportDesc() : 0;*/ }
+
+    /*
+    * Get the length of the report descriptor
+    *
+    * @returns the length of the report descriptor
+    */
+    virtual uint16_t reportDescLength();
+    virtual uint16_t reportDescLengthN(int idx)
+    {
+        reportDescN(idx);
+        return reportLength;
+    }
+
+    /*
+    * Get string product descriptor
+    *
+    * @returns pointer to the string product descriptor
+    */
+    virtual uint8_t * stringIproductDesc();
+
+    /*
+    * Get string interface descriptor
+    *
+    * @returns pointer to the string interface descriptor
+    */
+    virtual uint8_t * stringIinterfaceDesc();
+
+    /*
+    * Get configuration descriptor
+    *
+    * @returns pointer to the configuration descriptor
+    */
+    virtual uint8_t * configurationDesc();
+    
+    /*
+    * Set the idle time on the given interface.  The idle time is the time between
+    * INTERRUPT IN reports sent from the device to the host in the absence of any
+    * updates in values.  E.g., for a keyboard, this is the time between reports
+    * when there's no new key up/down activity to report.  An infinite idle time
+    * means that reports are sent only when new activity occurs.
+    *
+    * @param ifc Interface index (this specifies which interface is affected, in
+    * cases where the device has multiple interfaces)
+    *
+    * @param reportID Report ID (specifies which report type is affected, in cases
+    * where the device has multiple report types)
+    *
+    * @param t Idle time in 4ms units, with the special case that 0 means infinity.
+    * The maximum value is 255 units (1.02s).
+    */
+    virtual void setIdleTime(int ifc, int reportId, int t) { }
+    
+    /*
+    * Get the idle time on the given interface.  Returns the idle time information
+    * previously set with setIdleTime().
+    *
+    * @param ifc Interface index (specifies which interface is being queried, in
+    * cases where the device has multiple interfaces)
+    *
+    * @param reportID Report ID (specifies which report type is being queried, in
+    * cases where the device has multiple report types)
+    *
+    * @return The idle time currently set on the interface, in 4ms units.  0 means
+    * infinity (so reports will only be sent when there's new data)
+    */
+    virtual uint8_t getIdleTime(int ifc, int reportId) { return 0; }
+
+    /*
+    * HID Report received by SET_REPORT request. Warning: Called in ISR context
+    * First byte of data will be the report ID
+    *
+    * @param report Data and length received
+    */
+    virtual void HID_callbackSetReport(HID_REPORT *report){};
+
+
+    /*
+    * 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();
+
+
+    /*
+    * 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
+    * @returns true if class handles this request
+    */
+    virtual bool USBCallback_setConfiguration(uint8_t configuration);
+
+private:
+    HID_REPORT outputReport;
+    uint8_t output_length;
+    uint8_t input_length;
+    uint8_t idleData;
+};
+
+#endif