Radu Radoveneanu / 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.

Fork of UniGraphic by GraphicsDisplay

Display/TFT932x.h@22:62f3bed03503, 2015-05-06 (annotated)

Committer:
rakware
Date:
Wed May 06 16:52:07 2015 +0000
Revision:
22:62f3bed03503
Parent:
21:ae0a4eedfc90 
added touch for ADS7843 bound to TFT class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 20:14daa48ffd4c 1 #ifndef MBED_TFT932x_H
Geremia 20:14daa48ffd4c 2 #define MBED_TFT932x_H
Geremia 20:14daa48ffd4c 3
Geremia 20:14daa48ffd4c 4 #include "GraphicsDisplay.h"
Geremia 20:14daa48ffd4c 5 #include "PAR8.h"
Geremia 20:14daa48ffd4c 6 #include "PAR16.h"
Geremia 21:ae0a4eedfc90 7 #include "BUS8.h"
Geremia 21:ae0a4eedfc90 8 #include "BUS16.h"
Geremia 20:14daa48ffd4c 9 #include "SPI8.h"
Geremia 20:14daa48ffd4c 10 #include "SPI16.h"
Geremia 20:14daa48ffd4c 11 #include "Protocols.h"
Geremia 20:14daa48ffd4c 12
Geremia 20:14daa48ffd4c 13
Geremia 20:14daa48ffd4c 14 /** A custom base class for ILI932x color TFT Display (except ILI9327 which is MIPI standard)
Geremia 20:14daa48ffd4c 15 */
Geremia 20:14daa48ffd4c 16 class TFT932x : public GraphicsDisplay
Geremia 20:14daa48ffd4c 17 {
Geremia 20:14daa48ffd4c 18
Geremia 20:14daa48ffd4c 19 public:
Geremia 20:14daa48ffd4c 20
Geremia 21:ae0a4eedfc90 21 /** Create TFT Parallel Port interface
Geremia 20:14daa48ffd4c 22 * @param name The name used by the parent class to access the interface
Geremia 20:14daa48ffd4c 23 */
Geremia 21:ae0a4eedfc90 24 TFT932x(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const char* name);
Geremia 20:14daa48ffd4c 25
Geremia 21:ae0a4eedfc90 26 /** Create TFT Parallel Bus interface
Geremia 21:ae0a4eedfc90 27 * @param name The name used by the parent class to access the interface
Geremia 21:ae0a4eedfc90 28 */
Geremia 21:ae0a4eedfc90 29 TFT932x(proto_t displayproto, PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const char* name);
Geremia 21:ae0a4eedfc90 30
Geremia 21:ae0a4eedfc90 31 /** Create TFT SPI interface
Geremia 20:14daa48ffd4c 32 * @note ILI9325D has different SPI protocol, not supported here
Geremia 20:14daa48ffd4c 33 * @param name The name used by the parent class to access the interface
Geremia 20:14daa48ffd4c 34 */
Geremia 20:14daa48ffd4c 35 TFT932x(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, const int lcdsize_x, const int lcdsize_y, const char* name);
Geremia 20:14daa48ffd4c 36
Geremia 20:14daa48ffd4c 37 /////// functions that come for free, but can be overwritten///////////////////////////////////////////////////
Geremia 20:14daa48ffd4c 38 /////// ----------------------------------------------------///////////////////////////////////////////////////
Geremia 20:14daa48ffd4c 39
Geremia 20:14daa48ffd4c 40 /** Draw a pixel in the specified color.
Geremia 20:14daa48ffd4c 41 * @param x is the horizontal offset to this pixel.
Geremia 20:14daa48ffd4c 42 * @param y is the vertical offset to this pixel.
Geremia 20:14daa48ffd4c 43 * @param color defines the color for the pixel.
Geremia 20:14daa48ffd4c 44 */
Geremia 20:14daa48ffd4c 45 virtual void pixel(int x, int y, unsigned short color);
Geremia 20:14daa48ffd4c 46
Geremia 20:14daa48ffd4c 47 /** Set the window, which controls where items are written to the screen.
Geremia 20:14daa48ffd4c 48 * When something hits the window width, it wraps back to the left side
Geremia 20:14daa48ffd4c 49 * and down a row. If the initial write is outside the window, it will
Geremia 20:14daa48ffd4c 50 * be captured into the window when it crosses a boundary.
Geremia 20:14daa48ffd4c 51 * @param x is the left edge in pixels.
Geremia 20:14daa48ffd4c 52 * @param y is the top edge in pixels.
Geremia 20:14daa48ffd4c 53 * @param w is the window width in pixels.
Geremia 20:14daa48ffd4c 54 * @param h is the window height in pixels.
Geremia 20:14daa48ffd4c 55 */
Geremia 20:14daa48ffd4c 56 virtual void window(int x, int y, int w, int h);
Geremia 20:14daa48ffd4c 57
Geremia 20:14daa48ffd4c 58 /** Read pixel color at location
Geremia 20:14daa48ffd4c 59 * @param x is the horizontal offset to this pixel.
Geremia 20:14daa48ffd4c 60 * @param y is the vertical offset to this pixel.
Geremia 20:14daa48ffd4c 61 * @returns 16bit color.
Geremia 20:14daa48ffd4c 62 */
Geremia 20:14daa48ffd4c 63 virtual unsigned short pixelread(int x, int y);
Geremia 20:14daa48ffd4c 64
Geremia 20:14daa48ffd4c 65 /** Set the window from which gram is read from. Autoincrements row/column
Geremia 20:14daa48ffd4c 66 * @param x is the left edge in pixels.
Geremia 20:14daa48ffd4c 67 * @param y is the top edge in pixels.
Geremia 20:14daa48ffd4c 68 * @param w is the window width in pixels.
Geremia 20:14daa48ffd4c 69 * @param h is the window height in pixels.
Geremia 20:14daa48ffd4c 70 */
Geremia 20:14daa48ffd4c 71 virtual void window4read(int x, int y, int w, int h);
Geremia 20:14daa48ffd4c 72
Geremia 20:14daa48ffd4c 73 /** Push a single pixel into the window and increment position.
Geremia 20:14daa48ffd4c 74 * You must first call window() then push pixels.
Geremia 20:14daa48ffd4c 75 * @param color is the pixel color.
Geremia 20:14daa48ffd4c 76 */
Geremia 20:14daa48ffd4c 77 virtual void window_pushpixel(unsigned short color);
Geremia 20:14daa48ffd4c 78
Geremia 20:14daa48ffd4c 79 /** Push some pixels of the same color into the window and increment position.
Geremia 20:14daa48ffd4c 80 * You must first call window() then push pixels.
Geremia 20:14daa48ffd4c 81 * @param color is the pixel color.
Geremia 20:14daa48ffd4c 82 * @param count: how many
Geremia 20:14daa48ffd4c 83 */
Geremia 20:14daa48ffd4c 84 virtual void window_pushpixel(unsigned short color, unsigned int count);
Geremia 20:14daa48ffd4c 85
Geremia 20:14daa48ffd4c 86 /** Push array of pixel colors into the window and increment position.
Geremia 20:14daa48ffd4c 87 * You must first call window() then push pixels.
Geremia 20:14daa48ffd4c 88 * @param color is the pixel color.
Geremia 20:14daa48ffd4c 89 */
Geremia 20:14daa48ffd4c 90 virtual void window_pushpixelbuf(unsigned short* color, unsigned int lenght);
Geremia 20:14daa48ffd4c 91
Geremia 20:14daa48ffd4c 92 /** Framebuffer is not used for TFT
Geremia 20:14daa48ffd4c 93 */
Geremia 20:14daa48ffd4c 94 virtual void copy_to_lcd(){ };
Geremia 20:14daa48ffd4c 95
Geremia 20:14daa48ffd4c 96 /** display inverted colors
Geremia 20:14daa48ffd4c 97 *
Geremia 20:14daa48ffd4c 98 * @param o = 0 normal, 1 invert
Geremia 20:14daa48ffd4c 99 */
Geremia 20:14daa48ffd4c 100 void invert(unsigned char o);
Geremia 20:14daa48ffd4c 101
Geremia 20:14daa48ffd4c 102 /** clear the entire screen
Geremia 20:14daa48ffd4c 103 * The inherited one sets windomax then fill with background color
Geremia 20:14daa48ffd4c 104 * We override it to speedup
Geremia 20:14daa48ffd4c 105 */
Geremia 20:14daa48ffd4c 106 virtual void cls();
Geremia 20:14daa48ffd4c 107
Geremia 20:14daa48ffd4c 108 /** Set the orientation of the screen
Geremia 20:14daa48ffd4c 109 * x,y: 0,0 is always top left
Geremia 20:14daa48ffd4c 110 *
Geremia 20:14daa48ffd4c 111 * @param o direction to use the screen (0-3)
Geremia 20:14daa48ffd4c 112 * 0 = default 0° portrait view
Geremia 20:14daa48ffd4c 113 * 1 = +90° landscape view
Geremia 20:14daa48ffd4c 114 * 2 = +180° portrait view
Geremia 20:14daa48ffd4c 115 * 3 = -90° landscape view
Geremia 20:14daa48ffd4c 116 *
Geremia 20:14daa48ffd4c 117 */
Geremia 20:14daa48ffd4c 118 virtual void set_orientation(int o);
Geremia 20:14daa48ffd4c 119
Geremia 20:14daa48ffd4c 120 /** Set ChipSelect high or low
Geremia 20:14daa48ffd4c 121 * @param enable true/false
Geremia 20:14daa48ffd4c 122 */
Geremia 20:14daa48ffd4c 123 virtual void BusEnable(bool enable);
Geremia 20:14daa48ffd4c 124
Geremia 20:14daa48ffd4c 125 /** Enable fast window (default disabled)
Geremia 20:14daa48ffd4c 126 * used to speedup functions that plots single pixels, like circle, oblique lines or just sparse pixels
Geremia 20:14daa48ffd4c 127 * @param enable true/false
Geremia 20:14daa48ffd4c 128 * @note most but not all controllers support this, even if datasheet tells they should
Geremia 20:14daa48ffd4c 129 */
Geremia 20:14daa48ffd4c 130 void FastWindow(bool enable);
Geremia 20:14daa48ffd4c 131
Geremia 20:14daa48ffd4c 132 /** Enable scroll
Geremia 20:14daa48ffd4c 133 * scroll is done in hw but only on the native vertical axis
Geremia 20:14daa48ffd4c 134 * TFTs are mainly native protrait view, so horizontal scroll if rotated in landscape view
Geremia 20:14daa48ffd4c 135 * @note ILI932x does not allow partial screen scrolling, only full screen is selectable
Geremia 20:14daa48ffd4c 136 * @param startY unused, always 0 for ILI932x
Geremia 20:14daa48ffd4c 137 * @param areasize unused, always screensize_Y for ILI932x
Geremia 20:14daa48ffd4c 138 */
Geremia 20:14daa48ffd4c 139 void setscrollarea (int startY=0, int areasize=0);
Geremia 20:14daa48ffd4c 140
Geremia 20:14daa48ffd4c 141 /** Scroll up(or left) the scrollarea
Geremia 20:14daa48ffd4c 142 *
Geremia 20:14daa48ffd4c 143 * @param lines number of lines to scroll, 1= scrollup 1, areasize-1= scrolldown 1
Geremia 20:14daa48ffd4c 144 */
Geremia 20:14daa48ffd4c 145 void scroll (int lines);
Geremia 20:14daa48ffd4c 146
Geremia 20:14daa48ffd4c 147 /** Disable scroll and display un-scrolled screen
Geremia 20:14daa48ffd4c 148 *
Geremia 20:14daa48ffd4c 149 */
Geremia 20:14daa48ffd4c 150 void scrollreset();
Geremia 20:14daa48ffd4c 151
Geremia 20:14daa48ffd4c 152 /** get display X size in pixels (native, orientation independent)
Geremia 20:14daa48ffd4c 153 * @returns X size in pixels
Geremia 20:14daa48ffd4c 154 */
Geremia 20:14daa48ffd4c 155 int sizeX();
Geremia 20:14daa48ffd4c 156
Geremia 20:14daa48ffd4c 157 /** get display Y size in pixels (native, orientation independent)
Geremia 20:14daa48ffd4c 158 * @returns Y size in pixels
Geremia 20:14daa48ffd4c 159 */
Geremia 20:14daa48ffd4c 160 int sizeY();
Geremia 20:14daa48ffd4c 161
Geremia 20:14daa48ffd4c 162 unsigned int tftID;
Geremia 20:14daa48ffd4c 163
Geremia 20:14daa48ffd4c 164
Geremia 20:14daa48ffd4c 165
Geremia 20:14daa48ffd4c 166
Geremia 20:14daa48ffd4c 167 protected:
Geremia 20:14daa48ffd4c 168
Geremia 20:14daa48ffd4c 169
Geremia 20:14daa48ffd4c 170 ////// functions needed by parent class ///////////////////////////////////////
Geremia 20:14daa48ffd4c 171 ////// -------------------------------- ///////////////////////////////////////
Geremia 20:14daa48ffd4c 172
Geremia 20:14daa48ffd4c 173 /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent
Geremia 20:14daa48ffd4c 174 * for PAR protocols: a signle RD bit toggle
Geremia 20:14daa48ffd4c 175 * for SPI8: 8clocks
Geremia 20:14daa48ffd4c 176 * for SPI16: 16 clocks
Geremia 20:14daa48ffd4c 177 */
Geremia 20:14daa48ffd4c 178 virtual void dummyread ();
Geremia 20:14daa48ffd4c 179
Geremia 20:14daa48ffd4c 180 /** ILI932x specific, select register for a successive write or read
Geremia 20:14daa48ffd4c 181 *
Geremia 20:14daa48ffd4c 182 * @param reg register to be selected
Geremia 20:14daa48ffd4c 183 * @param forread false = a write next (default), true = a read next
Geremia 20:14daa48ffd4c 184 * @note forread only used by SPI protocols
Geremia 20:14daa48ffd4c 185 */
Geremia 20:14daa48ffd4c 186 virtual void reg_select(unsigned char reg, bool forread =false);
Geremia 20:14daa48ffd4c 187
Geremia 20:14daa48ffd4c 188 /** ILI932x specific, write register with data
Geremia 20:14daa48ffd4c 189 *
Geremia 20:14daa48ffd4c 190 * @param reg register to write
Geremia 20:14daa48ffd4c 191 * @param data 16bit data
Geremia 20:14daa48ffd4c 192 */
Geremia 20:14daa48ffd4c 193 virtual void reg_write(unsigned char reg, unsigned short data);
Geremia 20:14daa48ffd4c 194
Geremia 20:14daa48ffd4c 195 /** ILI932x specific, read register
Geremia 20:14daa48ffd4c 196 *
Geremia 20:14daa48ffd4c 197 * @param reg register to be read
Geremia 20:14daa48ffd4c 198 * @returns 16bit register value
Geremia 20:14daa48ffd4c 199 */
Geremia 20:14daa48ffd4c 200 virtual unsigned short reg_read(unsigned char reg);
Geremia 20:14daa48ffd4c 201
Geremia 20:14daa48ffd4c 202 /** Send 16bit pixeldata to display controller
Geremia 20:14daa48ffd4c 203 *
Geremia 20:14daa48ffd4c 204 * @param data: halfword to send
Geremia 20:14daa48ffd4c 205 *
Geremia 20:14daa48ffd4c 206 */
Geremia 20:14daa48ffd4c 207 virtual void wr_gram(unsigned short data);
Geremia 20:14daa48ffd4c 208
Geremia 20:14daa48ffd4c 209 /** Send same 16bit pixeldata to display controller multiple times
Geremia 20:14daa48ffd4c 210 *
Geremia 20:14daa48ffd4c 211 * @param data: halfword to send
Geremia 20:14daa48ffd4c 212 * @param count: how many
Geremia 20:14daa48ffd4c 213 *
Geremia 20:14daa48ffd4c 214 */
Geremia 20:14daa48ffd4c 215 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 20:14daa48ffd4c 216
Geremia 20:14daa48ffd4c 217 /** Send array of pixeldata shorts to display controller
Geremia 20:14daa48ffd4c 218 *
Geremia 20:14daa48ffd4c 219 * @param data: unsigned short pixeldata array
Geremia 20:14daa48ffd4c 220 * @param lenght: lenght (in shorts)
Geremia 20:14daa48ffd4c 221 *
Geremia 20:14daa48ffd4c 222 */
Geremia 20:14daa48ffd4c 223 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 20:14daa48ffd4c 224
Geremia 20:14daa48ffd4c 225 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 20:14daa48ffd4c 226 *
Geremia 20:14daa48ffd4c 227 * @note autoconverts 18to16bit based on display identify info
Geremia 20:14daa48ffd4c 228 * @returns 16bit color
Geremia 20:14daa48ffd4c 229 */
Geremia 20:14daa48ffd4c 230 virtual unsigned short rd_gram();
Geremia 20:14daa48ffd4c 231
Geremia 20:14daa48ffd4c 232 /** HW reset sequence (without display init commands)
Geremia 20:14daa48ffd4c 233 */
Geremia 20:14daa48ffd4c 234 void hw_reset();
Geremia 20:14daa48ffd4c 235
Geremia 20:14daa48ffd4c 236 /** Try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR
Geremia 20:14daa48ffd4c 237 * autoset internal flags so pixelread() will always return correct value.
Geremia 20:14daa48ffd4c 238 */
Geremia 20:14daa48ffd4c 239 virtual void auto_gram_read_format();
Geremia 20:14daa48ffd4c 240
Geremia 20:14daa48ffd4c 241 /** Try to identify display ID
Geremia 20:14daa48ffd4c 242 * @note support ILI9341,94xx, MIPI standard. May be be overridden in Init class for other specific IC
Geremia 20:14daa48ffd4c 243 */
Geremia 20:14daa48ffd4c 244 virtual void identify();
Geremia 20:14daa48ffd4c 245
Geremia 20:14daa48ffd4c 246 unsigned int scrollbugfix;
Geremia 20:14daa48ffd4c 247
Geremia 20:14daa48ffd4c 248
Geremia 20:14daa48ffd4c 249
Geremia 20:14daa48ffd4c 250 private:
Geremia 20:14daa48ffd4c 251
Geremia 20:14daa48ffd4c 252 Protocols* proto;
Geremia 20:14daa48ffd4c 253 const int screensize_X;
Geremia 20:14daa48ffd4c 254 const int screensize_Y;
Geremia 20:14daa48ffd4c 255 // pixel location
Geremia 20:14daa48ffd4c 256 int cur_x;
Geremia 20:14daa48ffd4c 257 int cur_y;
Geremia 20:14daa48ffd4c 258 // window location
Geremia 20:14daa48ffd4c 259 int win_x1;
Geremia 20:14daa48ffd4c 260 int win_x2;
Geremia 20:14daa48ffd4c 261 int win_y1;
Geremia 20:14daa48ffd4c 262 int win_y2;
Geremia 20:14daa48ffd4c 263 int orientation;
Geremia 20:14daa48ffd4c 264 bool dummycycles;
Geremia 20:14daa48ffd4c 265 bool usefastwindow;
Geremia 20:14daa48ffd4c 266 bool fastwindowready;
Geremia 20:14daa48ffd4c 267 bool fastwindowready4read;
Geremia 20:14daa48ffd4c 268 bool is18bit;
Geremia 20:14daa48ffd4c 269 bool isBGR;
Geremia 20:14daa48ffd4c 270
Geremia 20:14daa48ffd4c 271 };
Geremia 20:14daa48ffd4c 272
Geremia 20:14daa48ffd4c 273 #endif