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@2:713844a55c4e, 2015-02-13 (annotated)

Committer:
Geremia
Date:
Fri Feb 13 23:17:55 2015 +0000
Revision:
2:713844a55c4e
Parent:
1:ff019d22b275
Child:
4:12ba0ecc2c1f
Initial TFT implementation, needs to add read cmds

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
Geremia 0:75ec1b3cde17 57
Geremia 0:75ec1b3cde17 58
Geremia 0:75ec1b3cde17 59 /** Set the window, which controls where items are written to the screen.
Geremia 0:75ec1b3cde17 60 * When something hits the window width, it wraps back to the left side
Geremia 0:75ec1b3cde17 61 * and down a row. If the initial write is outside the window, it will
Geremia 0:75ec1b3cde17 62 * be captured into the window when it crosses a boundary.
Geremia 0:75ec1b3cde17 63 * @param x is the left edge in pixels.
Geremia 0:75ec1b3cde17 64 * @param y is the top edge in pixels.
Geremia 0:75ec1b3cde17 65 * @param w is the window width in pixels.
Geremia 0:75ec1b3cde17 66 * @param h is the window height in pixels.
Geremia 0:75ec1b3cde17 67 */
Geremia 0:75ec1b3cde17 68 virtual void window(int x, int y, int w, int h);
Geremia 0:75ec1b3cde17 69
Geremia 0:75ec1b3cde17 70 /** Push a single pixel into the window and increment position.
Geremia 0:75ec1b3cde17 71 * You must first call window() then push pixels in loop.
Geremia 0:75ec1b3cde17 72 * @param color is the pixel color.
Geremia 0:75ec1b3cde17 73 */
Geremia 0:75ec1b3cde17 74 virtual void window_pushpixel(unsigned short color);
Geremia 2:713844a55c4e 75
Geremia 2:713844a55c4e 76 /** Push some pixels of the same color into the window and increment position.
Geremia 2:713844a55c4e 77 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 78 * @param color is the pixel color.
Geremia 2:713844a55c4e 79 * @param count: how many
Geremia 2:713844a55c4e 80 */
Geremia 2:713844a55c4e 81 virtual void window_pushpixel(unsigned short color, unsigned int count);
Geremia 2:713844a55c4e 82
Geremia 2:713844a55c4e 83 /** Push array of pixel colors into the window and increment position.
Geremia 2:713844a55c4e 84 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 85 * @param color is the pixel color.
Geremia 2:713844a55c4e 86 */
Geremia 2:713844a55c4e 87 virtual void window_pushpixelbuf(unsigned short* color, unsigned int lenght);
Geremia 0:75ec1b3cde17 88
Geremia 0:75ec1b3cde17 89 /** Framebuffer is used, it needs to be sent to LCD from time to time
Geremia 0:75ec1b3cde17 90 */
Geremia 0:75ec1b3cde17 91 virtual void copy_to_lcd();
Geremia 0:75ec1b3cde17 92
Geremia 0:75ec1b3cde17 93 /** set the contrast of the screen
Geremia 0:75ec1b3cde17 94 *
Geremia 0:75ec1b3cde17 95 * @param o contrast 0-63
Geremia 0:75ec1b3cde17 96 * @note may be overrided in case of not standard command
Geremia 0:75ec1b3cde17 97 */
Geremia 0:75ec1b3cde17 98 virtual void set_contrast(int o);
Geremia 0:75ec1b3cde17 99
Geremia 0:75ec1b3cde17 100 /** read the contrast level
Geremia 0:75ec1b3cde17 101 *
Geremia 0:75ec1b3cde17 102 */
Geremia 0:75ec1b3cde17 103 int get_contrast(void);
Geremia 0:75ec1b3cde17 104
Geremia 0:75ec1b3cde17 105 /** invert the screen
Geremia 0:75ec1b3cde17 106 *
Geremia 0:75ec1b3cde17 107 * @param o = 0 normal, 1 invert
Geremia 0:75ec1b3cde17 108 */
Geremia 0:75ec1b3cde17 109 void invert(unsigned char o);
Geremia 0:75ec1b3cde17 110
Geremia 0:75ec1b3cde17 111 /** clear the entire screen
Geremia 0:75ec1b3cde17 112 * The inherited one sets windomax then fill with background color
Geremia 0:75ec1b3cde17 113 * We override it to speedup
Geremia 0:75ec1b3cde17 114 */
Geremia 0:75ec1b3cde17 115 virtual void cls();
Geremia 0:75ec1b3cde17 116
Geremia 2:713844a55c4e 117
Geremia 0:75ec1b3cde17 118
Geremia 0:75ec1b3cde17 119
Geremia 0:75ec1b3cde17 120
Geremia 0:75ec1b3cde17 121 /** Set the orientation of the screen
Geremia 0:75ec1b3cde17 122 * x,y: 0,0 is always top left
Geremia 0:75ec1b3cde17 123 *
Geremia 0:75ec1b3cde17 124 * @param o direction to use the screen (0-3)
Geremia 0:75ec1b3cde17 125 * 0 = -90°
Geremia 0:75ec1b3cde17 126 * 1 = default 0°
Geremia 0:75ec1b3cde17 127 * 2 = +90°
Geremia 0:75ec1b3cde17 128 * 3 = +180°
Geremia 0:75ec1b3cde17 129 *
Geremia 0:75ec1b3cde17 130 */
Geremia 0:75ec1b3cde17 131 void set_orientation(int o);
Geremia 0:75ec1b3cde17 132
Geremia 0:75ec1b3cde17 133 /** Set ChipSelect high or low
Geremia 0:75ec1b3cde17 134 * @param enable 0/1
Geremia 0:75ec1b3cde17 135 */
Geremia 0:75ec1b3cde17 136 virtual void BusEnable(bool enable);
Geremia 0:75ec1b3cde17 137
Geremia 0:75ec1b3cde17 138
Geremia 0:75ec1b3cde17 139 protected:
Geremia 0:75ec1b3cde17 140
Geremia 0:75ec1b3cde17 141 /** set mirror mode
Geremia 0:75ec1b3cde17 142 * @note may be overridden by specific display init class in case of not standard cmds or inverted wiring
Geremia 0:75ec1b3cde17 143 * @param mode NONE, X, Y, XY
Geremia 0:75ec1b3cde17 144 */
Geremia 0:75ec1b3cde17 145 virtual void mirrorXY(mirror_t mode);
Geremia 0:75ec1b3cde17 146
Geremia 0:75ec1b3cde17 147 ////// functions needed by parent class ///////////////////////////////////////
Geremia 0:75ec1b3cde17 148 ////// -------------------------------- ///////////////////////////////////////
Geremia 0:75ec1b3cde17 149
Geremia 1:ff019d22b275 150 /** Send 8bit command to display controller
Geremia 1:ff019d22b275 151 *
Geremia 1:ff019d22b275 152 * @param cmd: byte to send
Geremia 1:ff019d22b275 153 * @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 154 */
Geremia 1:ff019d22b275 155 void wr_cmd8(unsigned char cmd);
Geremia 0:75ec1b3cde17 156
Geremia 1:ff019d22b275 157 /** Send 8bit data to display controller
Geremia 1:ff019d22b275 158 *
Geremia 1:ff019d22b275 159 * @param data: byte to send
Geremia 1:ff019d22b275 160 *
Geremia 1:ff019d22b275 161 */
Geremia 1:ff019d22b275 162 void wr_data8(unsigned char data);
Geremia 0:75ec1b3cde17 163
Geremia 1:ff019d22b275 164 /** Send same 8bit data to display controller multiple times
Geremia 0:75ec1b3cde17 165 *
Geremia 1:ff019d22b275 166 * @param data: byte to send
Geremia 0:75ec1b3cde17 167 * @param count: how many
Geremia 0:75ec1b3cde17 168 *
Geremia 0:75ec1b3cde17 169 */
Geremia 1:ff019d22b275 170 void wr_data8(unsigned char data, unsigned int count);
Geremia 0:75ec1b3cde17 171
Geremia 0:75ec1b3cde17 172 /** Send array of data bytes to display controller
Geremia 0:75ec1b3cde17 173 *
Geremia 1:ff019d22b275 174 * @param data: unsigned char data array
Geremia 0:75ec1b3cde17 175 * @param lenght: lenght of array
Geremia 0:75ec1b3cde17 176 *
Geremia 0:75ec1b3cde17 177 */
Geremia 1:ff019d22b275 178 void wr_data8buf(unsigned char* data, unsigned int lenght);
Geremia 1:ff019d22b275 179
Geremia 1:ff019d22b275 180 /** Send 16bit command to display controller
Geremia 1:ff019d22b275 181 *
Geremia 1:ff019d22b275 182 * @param cmd: halfword to send
Geremia 1:ff019d22b275 183 *
Geremia 1:ff019d22b275 184 */
Geremia 1:ff019d22b275 185 void wr_cmd16(unsigned short cmd);
Geremia 1:ff019d22b275 186
Geremia 1:ff019d22b275 187 /** Send 16bit data to display controller
Geremia 1:ff019d22b275 188 *
Geremia 1:ff019d22b275 189 * @param data: halfword to send
Geremia 1:ff019d22b275 190 *
Geremia 1:ff019d22b275 191 */
Geremia 1:ff019d22b275 192 //void wr_data16(unsigned short data);
Geremia 1:ff019d22b275 193
Geremia 1:ff019d22b275 194 /** Send same 16bit data to display controller multiple times
Geremia 1:ff019d22b275 195 *
Geremia 1:ff019d22b275 196 * @param data: halfword to send
Geremia 1:ff019d22b275 197 * @param count: how many
Geremia 1:ff019d22b275 198 *
Geremia 1:ff019d22b275 199 */
Geremia 1:ff019d22b275 200 void wr_data16(unsigned short data, unsigned int count);
Geremia 1:ff019d22b275 201
Geremia 1:ff019d22b275 202 /** Send array of data shorts to display controller
Geremia 1:ff019d22b275 203 *
Geremia 1:ff019d22b275 204 * @param data: unsigned short data array
Geremia 1:ff019d22b275 205 * @param lenght: lenght (in shorts)
Geremia 1:ff019d22b275 206 *
Geremia 1:ff019d22b275 207 */
Geremia 1:ff019d22b275 208 void wr_data16buf(unsigned short* data, unsigned int lenght);
Geremia 0:75ec1b3cde17 209
Geremia 0:75ec1b3cde17 210 /** HW reset sequence (without display init commands)
Geremia 0:75ec1b3cde17 211 */
Geremia 0:75ec1b3cde17 212 void hw_reset();
Geremia 0:75ec1b3cde17 213
Geremia 0:75ec1b3cde17 214 int draw_mode;
Geremia 0:75ec1b3cde17 215 int contrast;
Geremia 0:75ec1b3cde17 216
Geremia 0:75ec1b3cde17 217 private:
Geremia 0:75ec1b3cde17 218
Geremia 2:713844a55c4e 219 Protocols* proto;
Geremia 0:75ec1b3cde17 220 unsigned char *buffer;
Geremia 1:ff019d22b275 221 unsigned short *buffer16;
Geremia 0:75ec1b3cde17 222 const int LCDSIZE_X;
Geremia 0:75ec1b3cde17 223 const int LCDSIZE_Y;
Geremia 0:75ec1b3cde17 224 const int LCDPAGES;
Geremia 0:75ec1b3cde17 225 const int IC_X_SEGS;
Geremia 0:75ec1b3cde17 226 const int IC_Y_COMS;
Geremia 0:75ec1b3cde17 227 const int IC_PAGES;
Geremia 0:75ec1b3cde17 228
Geremia 0:75ec1b3cde17 229 int page_offset;
Geremia 0:75ec1b3cde17 230 int col_offset;
Geremia 0:75ec1b3cde17 231 // pixel location
Geremia 0:75ec1b3cde17 232 int cur_x;
Geremia 0:75ec1b3cde17 233 int cur_y;
Geremia 0:75ec1b3cde17 234 // window location
Geremia 0:75ec1b3cde17 235 int win_x1;
Geremia 0:75ec1b3cde17 236 int win_x2;
Geremia 0:75ec1b3cde17 237 int win_y1;
Geremia 0:75ec1b3cde17 238 int win_y2;
Geremia 0:75ec1b3cde17 239 int orientation;
Geremia 1:ff019d22b275 240 bool useNOP;
Geremia 0:75ec1b3cde17 241 };
Geremia 0:75ec1b3cde17 242
Geremia 0:75ec1b3cde17 243 #endif