Diff: Display/BiosTouch.h

Revision:

22:1a58a518435c

Child:

23:6afd6a716e80

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Display/BiosTouch.h	Fri Jan 16 11:13:39 2015 +0100
@@ -0,0 +1,110 @@
+/*
+ *  Copyright 2014 Embedded Artists AB
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef BIOSTOUCH_H
+#define BIOSTOUCH_H
+
+#include "mbed.h"
+#include "TouchPanel.h"
+#include "Display.h"
+#include "bios.h"
+#include "rtos.h"
+
+class TouchHandler;
+
+/**
+ * Glue between the BIOS and the TouchPanel interface.
+ */
+class BiosTouch : public TouchPanel {
+public:
+    
+    /** Get the only instance of the BiosTouch
+     *
+     *  @returns The display
+     */
+    static BiosTouch& instance()
+    {
+        static BiosTouch singleton;
+        return singleton;
+    }
+  
+    /**
+     * Initialize the touch controller. This method must be called before
+     * calibrating or reading data from the controller
+     *
+     *  @returns
+     *       Ok on success
+     *       An error code on failure
+     */
+    TouchError init();
+
+    /**
+     * Tests if a touch controller is available or not.
+     *
+     * Note that this function only returns a valid value
+     * after the display has been intitialized.
+     *
+     * @return true if there is a touch controller
+     */
+    bool isTouchSupported();
+    
+    //void handleTouchInterrupt();
+    //void changeTouchInterrupt(bool enable, bool rising);
+  
+    // From the TouchPanel interface
+    virtual TouchError read(touch_coordinate_t &coord);
+    virtual TouchError read(touch_coordinate_t* coord, int num);
+    virtual TouchError info(bool* resistive, int* maxPoints, bool* calibrated);
+    virtual TouchError calibrateStart();
+    virtual TouchError getNextCalibratePoint(uint16_t* x, uint16_t* y, bool* last=NULL);
+    virtual TouchError waitForCalibratePoint(bool* morePoints, uint32_t timeout);
+    virtual FunctionPointer* setListener(FunctionPointer* listener);
+
+private:
+
+    //bool _initializedDisplay;
+    bool _initialized;
+    bool _haveInfo;
+    bool _poweredOn;
+    //InterruptIn _touchIRQ;
+    //FunctionPointer _touchFP;
+
+    bios_header_t* _bios;
+    void* _biosData;
+
+    Thread* _handlerThread;
+    TouchHandler* _handler;
+
+    //uint16_t _width;
+    //uint16_t _height;
+    //uint16_t _bpp;
+    //uint16_t _supportedRes;
+    //Resolution_t _activeRes;
+    //bool _landscape;
+    bool _supportsTouch;
+    bool _supportsTouchCalibration;
+    uint8_t _touchNumFingers;
+    bool _touchIsResistive;
+
+    explicit BiosTouch();
+    // hide copy constructor
+    BiosTouch(const BiosTouch&);
+    // hide assign operator
+    BiosTouch& operator=(const BiosTouch&);
+    ~BiosTouch();
+};
+
+#endif /* BIOSTOUCH_H */