Diff: Display/LCD.h

Revision:

0:75ec1b3cde17

Child:

1:ff019d22b275

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Display/LCD.h	Thu Feb 12 22:22:47 2015 +0000
@@ -0,0 +1,208 @@
+
+#ifndef MBED_LCD_H
+#define MBED_LCD_H
+
+#include "GraphicsDisplay.h"
+#include "PAR8.h"
+#include "SPI8.h"
+#include "Protocols.h"
+
+#define Black           1
+#define White           0
+
+/** Draw mode
+  * NORMAl
+  * XOR set pixel by xor the screen
+  */
+enum {NORMAL,XOR};
+
+/** Mirror mode */
+enum mirror_t {X,Y,XY,NONE};
+
+
+/** A common base class for monochrome Display
+*/
+class LCD : public GraphicsDisplay
+{
+
+public:         
+          
+    /** Create a monochrome LCD Parallel interface
+    * @param name The name used by the parent class to access the interface
+    */
+    LCD(proto_t displayproto,PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
+    
+    /** Create a monochrome LCD SPI interface
+    * @param name The name used by the parent class to access the interface
+    */
+    LCD(proto_t displayproto,PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
+    
+    /** Destructor
+    * will free framebuffer
+    */
+    virtual ~LCD();
+    
+
+    
+/////// functions that come for free, but can be overwritten///////////////////////////////////////////////////
+/////// ----------------------------------------------------///////////////////////////////////////////////////
+
+    /** Draw a pixel in the specified color.
+    * @param x is the horizontal offset to this pixel.
+    * @param y is the vertical offset to this pixel.
+    * @param color defines the color for the pixel.
+    */
+    virtual void pixel(int x, int y, unsigned short color);
+
+    
+        
+    
+    /** Set the window, which controls where items are written to the screen.
+    * When something hits the window width, it wraps back to the left side
+    * and down a row. If the initial write is outside the window, it will
+    * be captured into the window when it crosses a boundary.
+    * @param x is the left edge in pixels.
+    * @param y is the top edge in pixels.
+    * @param w is the window width in pixels.
+    * @param h is the window height in pixels.
+    */
+    virtual void window(int x, int y, int w, int h);
+
+    /** Push a single pixel into the window and increment position.
+    * You must first call window() then push pixels in loop.
+    * @param color is the pixel color.
+    */
+    virtual void window_pushpixel(unsigned short color);
+ 
+    /** Framebuffer is used, it needs to be sent to LCD from time to time
+    */
+    virtual void copy_to_lcd();
+    
+    /** set the contrast of the screen
+      *
+      * @param o contrast 0-63
+      * @note may be overrided in case of not standard command
+      */
+    virtual void set_contrast(int o);
+
+    /** read the contrast level
+      *
+      */
+    int get_contrast(void);
+
+    /** invert the screen
+      *
+      * @param o = 0 normal, 1 invert
+      */
+    void invert(unsigned char o);
+
+    /** clear the entire screen
+    * The inherited one sets windomax then fill with background color
+    * We override it to speedup
+    */
+    virtual void cls();
+    
+    /** setup auto update of screen 
+      *
+      * @param up 1 = on , 0 = off
+      * if switched off the program has to call copy_to_lcd() 
+      * to update screen from framebuffer
+      */
+    void set_auto_up(bool up);
+ 
+    /** get status of the auto update function
+      *
+      *  @returns if auto update is on
+      */
+    bool get_auto_up(void);
+    
+    
+    
+    /** Set the orientation of the screen
+    *  x,y: 0,0 is always top left 
+    *
+    * @param o direction to use the screen (0-3)
+    * 0 = -90°
+    * 1 = default 0°
+    * 2 = +90°
+    * 3 = +180°
+    *
+    */  
+    void set_orientation(int o);
+    
+    /** Set ChipSelect high or low
+    * @param enable 0/1   
+    */
+    virtual void BusEnable(bool enable);
+    
+    
+protected:
+
+    /** set mirror mode
+      * @note may be overridden by specific display init class in case of not standard cmds or inverted wiring 
+      * @param mode NONE, X, Y, XY 
+      */
+    virtual void mirrorXY(mirror_t mode);
+
+////// functions needed by parent class ///////////////////////////////////////
+////// -------------------------------- ///////////////////////////////////////
+
+    /** Send command byte to display
+    * @param cmd is the command
+    */
+    void wr_cmd(unsigned char cmd);
+    
+    /** Send data byte to display
+    * @param data8 is the byte
+    */
+    void wr_data8(unsigned char data8);
+    
+    /** Send same data byte to display controller multiple times
+    *
+    * @param data8: byte to send
+    * @param count: how many
+    *
+    */   
+    virtual void wr_data8(unsigned char data8, unsigned int count);
+    
+    /** Send array of data bytes to display controller
+    *
+    * @param data8: unsigned char data array
+    * @param lenght: lenght of array
+    *
+    */   
+    virtual void wr_data8buf(unsigned char* data8, unsigned int lenght);
+    
+    /** HW reset sequence (without display init commands)   
+    */
+    void hw_reset();
+  
+    int draw_mode;
+    int contrast;
+    
+private:
+
+
+    unsigned char *buffer;
+    const int LCDSIZE_X;
+    const int LCDSIZE_Y;
+    const int LCDPAGES;
+    const int IC_X_SEGS;
+    const int IC_Y_COMS;
+    const int IC_PAGES;
+    
+    int page_offset;
+    int col_offset;
+    // pixel location
+    int cur_x;
+    int cur_y;
+    // window location
+    int win_x1;
+    int win_x2;
+    int win_y1;
+    int win_y2;
+    int orientation;
+  //  bool portrait;
+};
+
+#endif
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