Diff: C12832_lcd.h

Revision:

0:862a4d510e20

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832_lcd.h	Thu Dec 17 20:11:56 2015 +0000
@@ -0,0 +1,294 @@
+/* mbed library for the mbed Lab Board  128*32 pixel LCD
+ * use C12832 controller
+ * Copyright (c) 2012 Peter Drescher - DC2PD
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * 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 C12832_H
+#define C12832_H
+
+#include "mbed.h"
+#include "GraphicsDisplay.h"
+
+
+/** optional Defines :
+  * #define debug_lcd  1  enable infos to PC_USB
+  */
+
+// some defines for the DMA use
+#define DMA_CHANNEL_ENABLE      1
+#define DMA_TRANSFER_TYPE_M2P   (1UL << 11)
+#define DMA_CHANNEL_TCIE        (1UL << 31)
+#define DMA_CHANNEL_SRC_INC     (1UL << 26)
+#define DMA_MASK_IE             (1UL << 14)
+#define DMA_MASK_ITC            (1UL << 15)
+#define DMA_SSP1_TX             (1UL << 2)
+#define DMA_SSP0_TX             (0)
+#define DMA_DEST_SSP1_TX        (2UL << 6)
+#define DMA_DEST_SSP0_TX        (0UL << 6)
+
+/** Draw mode
+  * NORMAl
+  * XOR set pixel by xor the screen
+  */
+enum {NORMAL,XOR};
+
+class C12832_LCD : public GraphicsDisplay
+{
+public:
+    /** Create a C12832_LCD object connected to SPI1
+      *
+      */
+
+    C12832_LCD(const char* name = "LCD");
+
+    /** Get the width of the screen in pixel
+      *
+      * @param
+      * @returns width of screen in pixel
+      *
+      */
+    virtual int width();
+
+    /** Get the height of the screen in pixel
+     *
+     * @returns height of screen in pixel
+     *
+     */
+    virtual int height();
+
+    /** Draw a pixel at x,y black or white
+     *
+     * @param x horizontal position
+     * @param y vertical position
+     * @param colour ,1 set pixel ,0 erase pixel
+     */
+    virtual void pixel(int x, int y,int colour);
+
+    /** draw a circle
+      *
+      * @param x0,y0 center
+      * @param r radius
+      * @param colour ,1 set pixel ,0 erase pixel
+      *
+      */
+    void circle(int x, int y, int r, int colour);
+
+    /** draw a filled circle
+     *
+     * @param x0,y0 center
+     * @param r radius
+     * @param color ,1 set pixel ,0 erase pixel
+     *
+     * use circle with different radius,
+     * can miss some pixel
+     */
+    void fillcircle(int x, int y, int r, int colour);
+
+    /** draw a 1 pixel line
+      *
+      * @param x0,y0 start point
+      * @param x1,y1 stop point
+      * @param color ,1 set pixel ,0 erase pixel
+      *
+      */
+    void line(int x0, int y0, int x1, int y1, int colour);
+
+    /** draw a rect
+    *
+    * @param x0,y0 top left corner
+    * @param x1,y1 down right corner
+    * @param color 1 set pixel ,0 erase pixel
+    *                                                   *
+    */
+    void rect(int x0, int y0, int x1, int y1, int colour);
+
+    /** draw a filled rect
+      *
+      * @param x0,y0 top left corner
+      * @param x1,y1 down right corner
+      * @param color 1 set pixel ,0 erase pixel
+      *
+      */
+    void fillrect(int x0, int y0, int x1, int y1, int colour);
+
+    /** copy display buffer to lcd
+      *
+      */
+
+    void copy_to_lcd(void);
+
+    /** set the orienation of the screen
+      *
+      */
+
+    //void set_orientation(unsigned int o);
+
+    /** set the contrast of the screen
+      *
+      * @param o contrast 0-63
+      */
+
+    void set_contrast(unsigned int o);
+
+    /** read the contrast level
+      *
+      */
+    unsigned int get_contrast(void);
+
+
+
+    /** invert the screen
+      *
+      * @param o = 0 normal, 1 invert
+      */
+    void invert(unsigned int o);
+
+    /** clear the screen
+       *
+       */
+    virtual void cls(void);
+
+    /** set the drawing mode
+      *
+      * @param mode NORMAl or XOR
+      */
+
+    void setmode(int mode);
+
+    int columns(void);
+
+    /** calculate the max number of columns
+     *
+     * @returns max column
+     * depends on actual font size
+     *
+     */
+    int rows(void);
+
+    /** put a char on the screen
+     *
+     * @param value char to print
+     * @returns printed char
+     *
+     */
+    int _putc(int value);
+
+    /** draw a character on given position out of the active font to the LCD
+     *
+     * @param x x-position of char (top left)
+     * @param y y-position
+     * @param c char to print
+     *
+     */
+    virtual void character(int x, int y, int c);
+
+    /** setup cursor position
+     *
+     * @param x x-position (top left)
+     * @param y y-position
+     */
+    void locate(int x, int y);
+    
+    /** 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 C12832_LCD::set_auto_up(unsigned int up);
+
+    /** get status of the auto update function
+      *
+      *  @returns if auto update is on
+      */
+    unsigned int C12832_LCD::get_auto_up(void);
+
+    /** Vars     */
+    SPI _spi;
+    DigitalOut _reset;
+    DigitalOut _A0;
+    DigitalOut _CS;
+    unsigned char* font;
+    unsigned int draw_mode;
+
+
+    /** select the font to use
+      *
+      * @param f pointer to font array
+      *
+      *   font array can created with GLCD Font Creator from http://www.mikroe.com
+      *   you have to add 4 parameter at the beginning of the font array to use:
+      *   - the number of byte / char
+      *   - the vertial size in pixel
+      *   - the horizontal size in pixel
+      *   - the number of byte per vertical line
+      *   you also have to change the array to char[]
+      *
+      */
+    void set_font(unsigned char* f);
+
+
+protected:
+
+    /** draw a horizontal line
+      *
+      * @param x0 horizontal start
+      * @param x1 horizontal stop
+      * @param y vertical position
+      * @param ,1 set pixel ,0 erase pixel
+      *
+      */
+    void hline(int x0, int x1, int y, int colour);
+
+    /** draw a vertical line
+     *
+     * @param x horizontal position
+     * @param y0 vertical start
+     * @param y1 vertical stop
+     * @param ,1 set pixel ,0 erase pixel
+     */
+    void vline(int y0, int y1, int x, int colour);
+
+    /** Init the C12832 LCD controller
+     *
+     */
+    void lcd_reset();
+
+    /** Write data to the LCD controller
+     *
+     * @param dat data written to LCD controller
+     *
+     */
+    void wr_dat(unsigned char value);
+
+    /** Write a command the LCD controller
+      *
+      * @param cmd: command to be written
+      *
+      */
+    void wr_cmd(unsigned char value);
+
+    void wr_cnt(unsigned char cmd);
+
+    unsigned int orientation;
+    unsigned int char_x;
+    unsigned int char_y;
+    unsigned char buffer[512];
+    unsigned int contrast;
+    unsigned int auto_up;
+
+};
+
+
+
+
+#endif