Diff: Display/BiosDisplayAndTouch.h

Revision:

11:dedcebcfc869

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Display/BiosDisplayAndTouch.h	Fri Dec 19 09:03:46 2014 +0100
@@ -0,0 +1,121 @@
+/*
+ *  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 BIOSDISPLAYANDTOUCH_H
+#define BIOSDISPLAYANDTOUCH_H
+
+#include "mbed.h"
+#include "TouchPanel.h"
+#include "Display.h"
+#include "bios.h"
+
+/**
+ * Glue between the BIOS and the Display/TouchPanel interfaces.
+ */
+class BiosDisplayAndTouch : public TouchPanel, public Display {
+public:
+    
+    /** Get the only instance of the BiosDisplayAndTouch
+     *
+     *  @returns The display
+     */
+    static BiosDisplayAndTouch& instance()
+    {
+        static BiosDisplayAndTouch singleton;
+        return singleton;
+    }
+  
+
+    /** Initializes the display but does not turn it on
+     *
+     *  @returns
+     *       Ok on success
+     *       An error code on failure
+     */
+    DisplayError initDisplay();
+  
+    /**
+     * 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 initTouchController();
+
+    /**
+     * 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 Display interface
+    virtual DisplayError powerUp(void* framebuffer, Resolution wanted = Resolution_16bit_rgb565);
+    virtual DisplayError powerDown();
+    virtual DisplayError backlight(int percent);
+    virtual uint16_t width();
+    virtual uint16_t height();
+    virtual uint16_t bytesPerPixel();
+    virtual uint32_t fbSize();
+    virtual bool landscape();
+    virtual bool isSupported(Resolution res);
+    virtual Resolution currentResolution();
+    virtual void setFramebuffer(void* buff);
+    virtual void* swapFramebuffer(void* buff);
+    virtual void* allocateFramebuffer(Resolution res=Resolution_16bit_rgb565);
+
+    // From the TouchPanel interface
+    virtual TouchError read(touchCoordinate_t &coord);
+    virtual TouchError calibrateStart();
+    virtual TouchError getNextCalibratePoint(uint16_t* x, uint16_t* y, bool* last=NULL);
+    virtual TouchError waitForCalibratePoint(bool* morePoints, uint32_t timeout);
+
+private:
+
+    bool _initializedDisplay;
+    bool _poweredOn;
+    bool _initializedTouch;
+    InterruptIn _touchIRQ;
+    //FunctionPointer _touchFP;
+
+    bios_header_t _bios;
+    void* _biosData;
+
+    uint16_t _width;
+    uint16_t _height;
+    uint16_t _bpp;
+    uint16_t _supportedRes;
+    Resolution_t _activeRes;
+    bool _landscape;
+    bool _supportsTouch;
+
+    explicit BiosDisplayAndTouch();
+    // hide copy constructor
+    BiosDisplayAndTouch(const BiosDisplayAndTouch&);
+    // hide assign operator
+    BiosDisplayAndTouch& operator=(const BiosDisplayAndTouch&);
+    ~BiosDisplayAndTouch();
+};
+
+#endif /* BIOSDISPLAYANDTOUCH_H */