Diff: EAQVGAOLED.h

Revision:

0:ae3d20db48fc

Child:

1:b23bfa1be0d9

diff -r 000000000000 -r ae3d20db48fc EAQVGAOLED.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EAQVGAOLED.h	Wed Feb 09 21:23:49 2011 +0000
@@ -0,0 +1,185 @@
+/* mbed library for driving the EA QVGA 2.8" OLED
+ * Copyright (c) Graham Bloice 2011
+ *
+ * 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 MBED_EAQVGAOLED_H
+#define MBED_EAQVGAOLED_H
+ 
+#include "mbed.h"
+#include "GraphicsDisplay.h"
+ 
+#define   BLACK			0x0000		/*   0,   0,   0 */
+#define   NAVY			0x000F      /*   0,   0, 128 */
+#define   DARK_GREEN	0x03E0      /*   0, 128,   0 */
+#define   DARK_CYAN		0x03EF      /*   0, 128, 128 */
+#define   MAROON		0x7800      /* 128,   0,   0 */
+#define   PURPLE		0x780F      /* 128,   0, 128 */
+#define   OLIVE			0x7BE0      /* 128, 128,   0 */
+#define   LIGHT_GRAY	0xC618      /* 192, 192, 192 */
+#define   DARK_GRAY		0x7BEF      /* 128, 128, 128 */
+#define   BLUE			0x001F      /*   0,   0, 255 */
+#define   GREEN			0x07E0      /*   0, 255,   0 */
+#define   CYAN          0x07FF      /*   0, 255, 255 */
+#define   RED           0xF800      /* 255,   0,   0 */
+#define   MAGENTA		0xF81F      /* 255,   0, 255 */
+#define   YELLOW		0xFFE0      /* 255, 255, 0   */
+#define   WHITE			0xFFFF      /* 255, 255, 255 */
+
+#define   CURSOR_CLS    0
+#define   CURSOR_UP     1
+#define   CURSOR_DOWN   2
+#define   CURSOR_LEFT   3
+#define   CURSOR_RIGHT  4
+
+ /** EA QVGA OLED Display driver
+  *
+  * Uses SPI to drive the Embedded Artists 2.8"
+  * QVGA OLED panel
+  *
+  */ 
+class EAQVGAOLED : public GraphicsDisplay {
+ 
+public:
+ 
+    // These are the functions required to support the base class
+    
+    /** Create an EA QVGA OLED object connected using
+     *  the specified SPI port, and two output pins;
+     *  the Chip Select pin and the Backlight pin. 
+     *
+     * @param spiPort SPI port to use for data
+     * @param cs Pin to drive the display CS
+     * @param reset Pin to drive the display reset
+     * @param bl Pin to drive the display backlight
+     */
+    EAQVGAOLED(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName bl);
+    
+    /** Set a pixel to the specified colour
+     *
+     * @param x Pixel x position
+     * @param y Pixel y position
+     * @param colour Pixel colour
+     */
+    virtual void pixel(int x, int y, int colour);
+
+    /** Accessor to obtain the display width
+     *
+     * @return the width of the display in pixels 
+     */
+    virtual int width(void) { return 240; }
+    
+    /** Accessor to obtain the display height
+     *
+     * @return the height of the display in pixels
+     */
+    virtual int height(void) { return 320; }
+
+    /** Clear the screen
+     */           
+    virtual void cls() { fillRectangle(0, 0, width(), height(), _background); }
+
+    /* No overrides for these functions
+    
+    virtual void window(int x, int y, int w, int h);
+    virtual void putp(int colour);
+    
+    virtual void fill(int x, int y, int w, int h, int colour);
+    virtual void blit(int x, int y, int w, int h, const int *colour);    
+    virtual void blitbit(int x, int y, int w, int h, const char* colour);
+    
+    virtual void character(int column, int row, int c);
+    virtual int columns();
+    virtual int rows();
+    
+    */
+
+    // These are new functions for this class
+    
+    /** Draw a horizontal line
+     *
+     * @param x0 Starting x position
+     * @param y0 Starting y position
+     * @param x1 End x position
+     * @param colour Colour of line
+     */
+    void hLine(const uint16_t x0, const uint16_t y0, const uint16_t x1, const uint16_t colour);
+        
+    /** Draw a vertical line
+     *
+     * @param x0 Starting x position
+     * @param y0 Starting y position
+     * @param y1 End y position
+     * @param colour Colour of line
+     */
+    void vLine(const uint16_t x0, const uint16_t y0, const uint16_t y1, const uint16_t colour);
+    
+    /** Draw a rectangle in the specified colour
+     *
+     * @param x0 Starting x position
+     * @param y0 Starting y position
+     * @param x1 Ending x position
+     * @param y1 Ending y position
+     * @param colour Outline colour of rectangle
+     */
+    void rectangle(const uint16_t x0, const uint16_t y0, const uint16_t x1, const uint16_t y1, uint16_t colour); 
+        
+    /** Draw a filled rectangle in the specified colour
+     *
+     * @param x0 Starting x position
+     * @param y0 Starting y position
+     * @param x1 Ending x position
+     * @param y1 Ending y position
+     * @param colour Outline colour of rectangle
+     */
+    void fillRectangle(const uint16_t x0, const uint16_t y0, const uint16_t x1, const uint16_t y1, uint16_t colour);
+    
+    /** Control the backlight
+     *
+     * @param on Enable the backlight
+     */
+    void backlightControl(bool on) {
+                                       _bl = on ? 1 : 0;
+                                   }
+    
+protected:
+
+    /** Print a character
+     *
+     * Overridden to handle control characters
+     */
+    virtual int _putc(int value);
+
+private:
+    bool resetDisplay(void);                                        // Reset the display
+    void initHardware(void);                                        // Initialise the hardware
+    inline void setRegisterIndex(const uint8_t reg);                // Write register
+    inline void writeData(const uint16_t data);                     // Write data
+    uint16_t readDataRegister(const uint8_t reg);                   // Read from a register
+    void writeDataRegister(const uint8_t reg, const uint16_t data); // Write data to a register
+    void movePen(const uint16_t x, const uint16_t y);               // Set the pen position
+    
+    SPI         _spi;   // The SPI Port to use for data I/O
+    DigitalOut  _cs;    // The I/O pin for the Chip Select
+    DigitalOut  _reset; // The I/O pin for the reset
+    DigitalOut  _bl;    // The I/O pin for the blacklight
+ }; 
+ 
+ #endif
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