Duncan Wood / UniGraphic

Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.

Dependents:   Brew

Display/LCD.h@7:bb0383b91104, 2015-02-17 (annotated)

Committer:
Geremia
Date:
Tue Feb 17 11:02:06 2015 +0000
Revision:
7:bb0383b91104
Parent:
4:12ba0ecc2c1f
Child:
10:668cf78ff93a
TFT: added get deviceID, scroll functions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 0:75ec1b3cde17 1
Geremia 0:75ec1b3cde17 2 #ifndef MBED_LCD_H
Geremia 0:75ec1b3cde17 3 #define MBED_LCD_H
Geremia 0:75ec1b3cde17 4
Geremia 0:75ec1b3cde17 5 #include "GraphicsDisplay.h"
Geremia 0:75ec1b3cde17 6 #include "PAR8.h"
Geremia 0:75ec1b3cde17 7 #include "SPI8.h"
Geremia 1:ff019d22b275 8 #include "SPI16.h"
Geremia 0:75ec1b3cde17 9 #include "Protocols.h"
Geremia 0:75ec1b3cde17 10
Geremia 1:ff019d22b275 11
Geremia 0:75ec1b3cde17 12 /** Draw mode
Geremia 0:75ec1b3cde17 13 * NORMAl
Geremia 0:75ec1b3cde17 14 * XOR set pixel by xor the screen
Geremia 0:75ec1b3cde17 15 */
Geremia 0:75ec1b3cde17 16 enum {NORMAL,XOR};
Geremia 0:75ec1b3cde17 17
Geremia 0:75ec1b3cde17 18 /** Mirror mode */
Geremia 0:75ec1b3cde17 19 enum mirror_t {X,Y,XY,NONE};
Geremia 0:75ec1b3cde17 20
Geremia 0:75ec1b3cde17 21
Geremia 0:75ec1b3cde17 22 /** A common base class for monochrome Display
Geremia 0:75ec1b3cde17 23 */
Geremia 0:75ec1b3cde17 24 class LCD : public GraphicsDisplay
Geremia 0:75ec1b3cde17 25 {
Geremia 0:75ec1b3cde17 26
Geremia 0:75ec1b3cde17 27 public:
Geremia 0:75ec1b3cde17 28
Geremia 0:75ec1b3cde17 29 /** Create a monochrome LCD Parallel interface
Geremia 0:75ec1b3cde17 30 * @param name The name used by the parent class to access the interface
Geremia 0:75ec1b3cde17 31 */
Geremia 0:75ec1b3cde17 32 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);
Geremia 0:75ec1b3cde17 33
Geremia 0:75ec1b3cde17 34 /** Create a monochrome LCD SPI interface
Geremia 0:75ec1b3cde17 35 * @param name The name used by the parent class to access the interface
Geremia 0:75ec1b3cde17 36 */
Geremia 1:ff019d22b275 37 LCD(proto_t displayproto, int Hz, 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);
Geremia 0:75ec1b3cde17 38
Geremia 0:75ec1b3cde17 39 /** Destructor
Geremia 0:75ec1b3cde17 40 * will free framebuffer
Geremia 0:75ec1b3cde17 41 */
Geremia 0:75ec1b3cde17 42 virtual ~LCD();
Geremia 0:75ec1b3cde17 43
Geremia 0:75ec1b3cde17 44
Geremia 0:75ec1b3cde17 45
Geremia 0:75ec1b3cde17 46 /////// functions that come for free, but can be overwritten///////////////////////////////////////////////////
Geremia 0:75ec1b3cde17 47 /////// ----------------------------------------------------///////////////////////////////////////////////////
Geremia 0:75ec1b3cde17 48
Geremia 0:75ec1b3cde17 49 /** Draw a pixel in the specified color.
Geremia 0:75ec1b3cde17 50 * @param x is the horizontal offset to this pixel.
Geremia 0:75ec1b3cde17 51 * @param y is the vertical offset to this pixel.
Geremia 0:75ec1b3cde17 52 * @param color defines the color for the pixel.
Geremia 0:75ec1b3cde17 53 */
Geremia 0:75ec1b3cde17 54 virtual void pixel(int x, int y, unsigned short color);
Geremia 0:75ec1b3cde17 55
Geremia 0:75ec1b3cde17 56 /** Set the window, which controls where items are written to the screen.
Geremia 0:75ec1b3cde17 57 * When something hits the window width, it wraps back to the left side
Geremia 0:75ec1b3cde17 58 * and down a row. If the initial write is outside the window, it will
Geremia 0:75ec1b3cde17 59 * be captured into the window when it crosses a boundary.
Geremia 0:75ec1b3cde17 60 * @param x is the left edge in pixels.
Geremia 0:75ec1b3cde17 61 * @param y is the top edge in pixels.
Geremia 0:75ec1b3cde17 62 * @param w is the window width in pixels.
Geremia 0:75ec1b3cde17 63 * @param h is the window height in pixels.
Geremia 0:75ec1b3cde17 64 */
Geremia 0:75ec1b3cde17 65 virtual void window(int x, int y, int w, int h);
Geremia 7:bb0383b91104 66
Geremia 7:bb0383b91104 67
Geremia 0:75ec1b3cde17 68
Geremia 0:75ec1b3cde17 69 /** Push a single pixel into the window and increment position.
Geremia 0:75ec1b3cde17 70 * You must first call window() then push pixels in loop.
Geremia 0:75ec1b3cde17 71 * @param color is the pixel color.
Geremia 0:75ec1b3cde17 72 */
Geremia 0:75ec1b3cde17 73 virtual void window_pushpixel(unsigned short color);
Geremia 2:713844a55c4e 74
Geremia 2:713844a55c4e 75 /** Push some pixels of the same color into the window and increment position.
Geremia 2:713844a55c4e 76 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 77 * @param color is the pixel color.
Geremia 2:713844a55c4e 78 * @param count: how many
Geremia 2:713844a55c4e 79 */
Geremia 2:713844a55c4e 80 virtual void window_pushpixel(unsigned short color, unsigned int count);
Geremia 2:713844a55c4e 81
Geremia 2:713844a55c4e 82 /** Push array of pixel colors into the window and increment position.
Geremia 2:713844a55c4e 83 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 84 * @param color is the pixel color.
Geremia 2:713844a55c4e 85 */
Geremia 2:713844a55c4e 86 virtual void window_pushpixelbuf(unsigned short* color, unsigned int lenght);
Geremia 0:75ec1b3cde17 87
Geremia 0:75ec1b3cde17 88 /** Framebuffer is used, it needs to be sent to LCD from time to time
Geremia 0:75ec1b3cde17 89 */
Geremia 0:75ec1b3cde17 90 virtual void copy_to_lcd();
Geremia 0:75ec1b3cde17 91
Geremia 0:75ec1b3cde17 92 /** set the contrast of the screen
Geremia 0:75ec1b3cde17 93 *
Geremia 0:75ec1b3cde17 94 * @param o contrast 0-63
Geremia 0:75ec1b3cde17 95 * @note may be overrided in case of not standard command
Geremia 0:75ec1b3cde17 96 */
Geremia 0:75ec1b3cde17 97 virtual void set_contrast(int o);
Geremia 0:75ec1b3cde17 98
Geremia 0:75ec1b3cde17 99 /** read the contrast level
Geremia 0:75ec1b3cde17 100 *
Geremia 0:75ec1b3cde17 101 */
Geremia 0:75ec1b3cde17 102 int get_contrast(void);
Geremia 0:75ec1b3cde17 103
Geremia 7:bb0383b91104 104 /** display inverted colors
Geremia 0:75ec1b3cde17 105 *
Geremia 0:75ec1b3cde17 106 * @param o = 0 normal, 1 invert
Geremia 0:75ec1b3cde17 107 */
Geremia 0:75ec1b3cde17 108 void invert(unsigned char o);
Geremia 0:75ec1b3cde17 109
Geremia 0:75ec1b3cde17 110 /** clear the entire screen
Geremia 0:75ec1b3cde17 111 * The inherited one sets windomax then fill with background color
Geremia 0:75ec1b3cde17 112 * We override it to speedup
Geremia 0:75ec1b3cde17 113 */
Geremia 0:75ec1b3cde17 114 virtual void cls();
Geremia 0:75ec1b3cde17 115
Geremia 0:75ec1b3cde17 116 /** Set the orientation of the screen
Geremia 0:75ec1b3cde17 117 * x,y: 0,0 is always top left
Geremia 0:75ec1b3cde17 118 *
Geremia 0:75ec1b3cde17 119 * @param o direction to use the screen (0-3)
Geremia 0:75ec1b3cde17 120 * 0 = -90°
Geremia 0:75ec1b3cde17 121 * 1 = default 0°
Geremia 0:75ec1b3cde17 122 * 2 = +90°
Geremia 0:75ec1b3cde17 123 * 3 = +180°
Geremia 0:75ec1b3cde17 124 *
Geremia 0:75ec1b3cde17 125 */
Geremia 0:75ec1b3cde17 126 void set_orientation(int o);
Geremia 0:75ec1b3cde17 127
Geremia 0:75ec1b3cde17 128 /** Set ChipSelect high or low
Geremia 0:75ec1b3cde17 129 * @param enable 0/1
Geremia 0:75ec1b3cde17 130 */
Geremia 0:75ec1b3cde17 131 virtual void BusEnable(bool enable);
Geremia 0:75ec1b3cde17 132
Geremia 7:bb0383b91104 133 /** get display X size in pixels (native, orientation independent)
Geremia 7:bb0383b91104 134 * @returns X size in pixels
Geremia 7:bb0383b91104 135 */
Geremia 7:bb0383b91104 136 int sizeX();
Geremia 7:bb0383b91104 137
Geremia 7:bb0383b91104 138 /** get display X size in pixels (native, orientation independent)
Geremia 7:bb0383b91104 139 * @returns screen height in pixels.
Geremia 7:bb0383b91104 140 */
Geremia 7:bb0383b91104 141 int sizeY();
Geremia 7:bb0383b91104 142
Geremia 7:bb0383b91104 143 ////////////////////////////////////////////////////////////////////////////////
Geremia 7:bb0383b91104 144 // not implemented yet
Geremia 7:bb0383b91104 145 //////////////////////////////////////////////////////////////////
Geremia 7:bb0383b91104 146 virtual unsigned short pixelread(int x, int y){return 0;};
Geremia 7:bb0383b91104 147 virtual void window4read(int x, int y, int w, int h){};
Geremia 7:bb0383b91104 148 void setscrollarea (int startY, int areasize){};
Geremia 7:bb0383b91104 149 void scroll (int lines){};
Geremia 7:bb0383b91104 150 void scrollreset(){};
Geremia 7:bb0383b91104 151
Geremia 7:bb0383b91104 152 unsigned int tftID;
Geremia 7:bb0383b91104 153
Geremia 7:bb0383b91104 154
Geremia 7:bb0383b91104 155
Geremia 0:75ec1b3cde17 156
Geremia 0:75ec1b3cde17 157 protected:
Geremia 0:75ec1b3cde17 158
Geremia 0:75ec1b3cde17 159 /** set mirror mode
Geremia 0:75ec1b3cde17 160 * @note may be overridden by specific display init class in case of not standard cmds or inverted wiring
Geremia 0:75ec1b3cde17 161 * @param mode NONE, X, Y, XY
Geremia 0:75ec1b3cde17 162 */
Geremia 0:75ec1b3cde17 163 virtual void mirrorXY(mirror_t mode);
Geremia 0:75ec1b3cde17 164
Geremia 0:75ec1b3cde17 165 ////// functions needed by parent class ///////////////////////////////////////
Geremia 0:75ec1b3cde17 166 ////// -------------------------------- ///////////////////////////////////////
Geremia 0:75ec1b3cde17 167
Geremia 1:ff019d22b275 168 /** Send 8bit command to display controller
Geremia 1:ff019d22b275 169 *
Geremia 1:ff019d22b275 170 * @param cmd: byte to send
Geremia 1:ff019d22b275 171 * @note if protocol is SPI16, it will insert NOP cmd before, so if cmd is a 2byte cmd, the second cmd will be broken. Use wr_cmd16 for 2bytes cmds
Geremia 1:ff019d22b275 172 */
Geremia 1:ff019d22b275 173 void wr_cmd8(unsigned char cmd);
Geremia 0:75ec1b3cde17 174
Geremia 1:ff019d22b275 175 /** Send 8bit data to display controller
Geremia 1:ff019d22b275 176 *
Geremia 1:ff019d22b275 177 * @param data: byte to send
Geremia 1:ff019d22b275 178 *
Geremia 1:ff019d22b275 179 */
Geremia 1:ff019d22b275 180 void wr_data8(unsigned char data);
Geremia 0:75ec1b3cde17 181
Geremia 1:ff019d22b275 182 /** Send 16bit command to display controller
Geremia 1:ff019d22b275 183 *
Geremia 1:ff019d22b275 184 * @param cmd: halfword to send
Geremia 1:ff019d22b275 185 *
Geremia 1:ff019d22b275 186 */
Geremia 1:ff019d22b275 187 void wr_cmd16(unsigned short cmd);
Geremia 1:ff019d22b275 188
Geremia 4:12ba0ecc2c1f 189 /** Send same 16bit pixeldata to display controller multiple times
Geremia 1:ff019d22b275 190 *
Geremia 1:ff019d22b275 191 * @param data: halfword to send
Geremia 1:ff019d22b275 192 * @param count: how many
Geremia 1:ff019d22b275 193 *
Geremia 1:ff019d22b275 194 */
Geremia 4:12ba0ecc2c1f 195 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 1:ff019d22b275 196
Geremia 4:12ba0ecc2c1f 197 /** Send array of pixeldata shorts to display controller
Geremia 1:ff019d22b275 198 *
Geremia 4:12ba0ecc2c1f 199 * @param data: unsigned short pixeldata array
Geremia 1:ff019d22b275 200 * @param lenght: lenght (in shorts)
Geremia 1:ff019d22b275 201 *
Geremia 1:ff019d22b275 202 */
Geremia 4:12ba0ecc2c1f 203 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 0:75ec1b3cde17 204
Geremia 0:75ec1b3cde17 205 /** HW reset sequence (without display init commands)
Geremia 0:75ec1b3cde17 206 */
Geremia 0:75ec1b3cde17 207 void hw_reset();
Geremia 0:75ec1b3cde17 208
Geremia 0:75ec1b3cde17 209 int draw_mode;
Geremia 0:75ec1b3cde17 210 int contrast;
Geremia 0:75ec1b3cde17 211
Geremia 0:75ec1b3cde17 212 private:
Geremia 0:75ec1b3cde17 213
Geremia 2:713844a55c4e 214 Protocols* proto;
Geremia 0:75ec1b3cde17 215 unsigned char *buffer;
Geremia 1:ff019d22b275 216 unsigned short *buffer16;
Geremia 7:bb0383b91104 217 const int screensize_X;
Geremia 7:bb0383b91104 218 const int screensize_Y;
Geremia 7:bb0383b91104 219 const int _LCDPAGES;
Geremia 7:bb0383b91104 220 const int _IC_X_SEGS;
Geremia 7:bb0383b91104 221 const int _IC_Y_COMS;
Geremia 7:bb0383b91104 222 const int _IC_PAGES;
Geremia 0:75ec1b3cde17 223
Geremia 0:75ec1b3cde17 224 int page_offset;
Geremia 0:75ec1b3cde17 225 int col_offset;
Geremia 0:75ec1b3cde17 226 // pixel location
Geremia 0:75ec1b3cde17 227 int cur_x;
Geremia 0:75ec1b3cde17 228 int cur_y;
Geremia 0:75ec1b3cde17 229 // window location
Geremia 0:75ec1b3cde17 230 int win_x1;
Geremia 0:75ec1b3cde17 231 int win_x2;
Geremia 0:75ec1b3cde17 232 int win_y1;
Geremia 0:75ec1b3cde17 233 int win_y2;
Geremia 0:75ec1b3cde17 234 int orientation;
Geremia 1:ff019d22b275 235 bool useNOP;
Geremia 0:75ec1b3cde17 236 };
Geremia 0:75ec1b3cde17 237
Geremia 0:75ec1b3cde17 238 #endif