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/TFT.h@11:b842b8e332cb, 2015-02-20 (annotated)

Committer:
Geremia
Date:
Fri Feb 20 21:32:25 2015 +0000
Revision:
11:b842b8e332cb
Parent:
10:668cf78ff93a
Child:
20:14daa48ffd4c
added auto_gram_read_format() to TFt inits. Even if write is set to 16bit RGB color, for some controllers the read cmd outputs 18bit BGR. Now that function will autodetect and set internal flags accordingly, so pixelread() is always correct.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 2:713844a55c4e 1 #ifndef MBED_TFT_H
Geremia 2:713844a55c4e 2 #define MBED_TFT_H
Geremia 2:713844a55c4e 3
Geremia 2:713844a55c4e 4 #include "GraphicsDisplay.h"
Geremia 2:713844a55c4e 5 #include "PAR8.h"
Geremia 4:12ba0ecc2c1f 6 #include "PAR16.h"
Geremia 2:713844a55c4e 7 #include "SPI8.h"
Geremia 2:713844a55c4e 8 #include "SPI16.h"
Geremia 2:713844a55c4e 9 #include "Protocols.h"
Geremia 2:713844a55c4e 10
Geremia 2:713844a55c4e 11
Geremia 6:8356d48a07db 12 /** A common base class for color TFT Display
Geremia 2:713844a55c4e 13 */
Geremia 2:713844a55c4e 14 class TFT : public GraphicsDisplay
Geremia 2:713844a55c4e 15 {
Geremia 2:713844a55c4e 16
Geremia 2:713844a55c4e 17 public:
Geremia 2:713844a55c4e 18
Geremia 2:713844a55c4e 19 /** Create a monochrome LCD Parallel interface
Geremia 2:713844a55c4e 20 * @param name The name used by the parent class to access the interface
Geremia 2:713844a55c4e 21 */
Geremia 2:713844a55c4e 22 TFT(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 2:713844a55c4e 23
Geremia 2:713844a55c4e 24 /** Create a monochrome LCD SPI interface
Geremia 2:713844a55c4e 25 * @param name The name used by the parent class to access the interface
Geremia 2:713844a55c4e 26 */
Geremia 2:713844a55c4e 27 TFT(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 char* name);
Geremia 2:713844a55c4e 28
Geremia 2:713844a55c4e 29 /////// functions that come for free, but can be overwritten///////////////////////////////////////////////////
Geremia 2:713844a55c4e 30 /////// ----------------------------------------------------///////////////////////////////////////////////////
Geremia 2:713844a55c4e 31
Geremia 2:713844a55c4e 32 /** Draw a pixel in the specified color.
Geremia 2:713844a55c4e 33 * @param x is the horizontal offset to this pixel.
Geremia 2:713844a55c4e 34 * @param y is the vertical offset to this pixel.
Geremia 2:713844a55c4e 35 * @param color defines the color for the pixel.
Geremia 2:713844a55c4e 36 */
Geremia 2:713844a55c4e 37 virtual void pixel(int x, int y, unsigned short color);
Geremia 2:713844a55c4e 38
Geremia 2:713844a55c4e 39 /** Set the window, which controls where items are written to the screen.
Geremia 2:713844a55c4e 40 * When something hits the window width, it wraps back to the left side
Geremia 2:713844a55c4e 41 * and down a row. If the initial write is outside the window, it will
Geremia 2:713844a55c4e 42 * be captured into the window when it crosses a boundary.
Geremia 2:713844a55c4e 43 * @param x is the left edge in pixels.
Geremia 2:713844a55c4e 44 * @param y is the top edge in pixels.
Geremia 2:713844a55c4e 45 * @param w is the window width in pixels.
Geremia 2:713844a55c4e 46 * @param h is the window height in pixels.
Geremia 2:713844a55c4e 47 */
Geremia 2:713844a55c4e 48 virtual void window(int x, int y, int w, int h);
Geremia 5:b222a9461d6b 49
Geremia 8:26757296c79d 50 /** Read pixel color at location
Geremia 5:b222a9461d6b 51 * @param x is the horizontal offset to this pixel.
Geremia 5:b222a9461d6b 52 * @param y is the vertical offset to this pixel.
Geremia 8:26757296c79d 53 * @returns 16bit color.
Geremia 5:b222a9461d6b 54 */
Geremia 5:b222a9461d6b 55 virtual unsigned short pixelread(int x, int y);
Geremia 5:b222a9461d6b 56
Geremia 5:b222a9461d6b 57 /** Set the window from which gram is read from. Autoincrements row/column
Geremia 5:b222a9461d6b 58 * @param x is the left edge in pixels.
Geremia 5:b222a9461d6b 59 * @param y is the top edge in pixels.
Geremia 5:b222a9461d6b 60 * @param w is the window width in pixels.
Geremia 5:b222a9461d6b 61 * @param h is the window height in pixels.
Geremia 5:b222a9461d6b 62 */
Geremia 5:b222a9461d6b 63 virtual void window4read(int x, int y, int w, int h);
Geremia 2:713844a55c4e 64
Geremia 2:713844a55c4e 65 /** Push a single pixel into the window and increment position.
Geremia 2:713844a55c4e 66 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 67 * @param color is the pixel color.
Geremia 2:713844a55c4e 68 */
Geremia 2:713844a55c4e 69 virtual void window_pushpixel(unsigned short color);
Geremia 2:713844a55c4e 70
Geremia 2:713844a55c4e 71 /** Push some pixels of the same color into the window and increment position.
Geremia 2:713844a55c4e 72 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 73 * @param color is the pixel color.
Geremia 2:713844a55c4e 74 * @param count: how many
Geremia 2:713844a55c4e 75 */
Geremia 2:713844a55c4e 76 virtual void window_pushpixel(unsigned short color, unsigned int count);
Geremia 2:713844a55c4e 77
Geremia 2:713844a55c4e 78 /** Push array of pixel colors into the window and increment position.
Geremia 2:713844a55c4e 79 * You must first call window() then push pixels.
Geremia 2:713844a55c4e 80 * @param color is the pixel color.
Geremia 2:713844a55c4e 81 */
Geremia 2:713844a55c4e 82 virtual void window_pushpixelbuf(unsigned short* color, unsigned int lenght);
Geremia 2:713844a55c4e 83
Geremia 2:713844a55c4e 84 /** Framebuffer is not used for TFT
Geremia 2:713844a55c4e 85 */
Geremia 2:713844a55c4e 86 virtual void copy_to_lcd(){ };
Geremia 2:713844a55c4e 87
Geremia 7:bb0383b91104 88 /** display inverted colors
Geremia 2:713844a55c4e 89 *
Geremia 2:713844a55c4e 90 * @param o = 0 normal, 1 invert
Geremia 2:713844a55c4e 91 */
Geremia 2:713844a55c4e 92 void invert(unsigned char o);
Geremia 2:713844a55c4e 93
Geremia 2:713844a55c4e 94 /** clear the entire screen
Geremia 2:713844a55c4e 95 * The inherited one sets windomax then fill with background color
Geremia 2:713844a55c4e 96 * We override it to speedup
Geremia 2:713844a55c4e 97 */
Geremia 2:713844a55c4e 98 virtual void cls();
Geremia 2:713844a55c4e 99
Geremia 2:713844a55c4e 100 /** Set the orientation of the screen
Geremia 2:713844a55c4e 101 * x,y: 0,0 is always top left
Geremia 2:713844a55c4e 102 *
Geremia 2:713844a55c4e 103 * @param o direction to use the screen (0-3)
Geremia 2:713844a55c4e 104 * 0 = default 0° portrait view
Geremia 2:713844a55c4e 105 * 1 = +90° landscape view
Geremia 2:713844a55c4e 106 * 2 = +180° portrait view
Geremia 2:713844a55c4e 107 * 3 = -90° landscape view
Geremia 2:713844a55c4e 108 *
Geremia 2:713844a55c4e 109 */
Geremia 2:713844a55c4e 110 virtual void set_orientation(int o);
Geremia 2:713844a55c4e 111
Geremia 2:713844a55c4e 112 /** Set ChipSelect high or low
Geremia 10:668cf78ff93a 113 * @param enable true/false
Geremia 2:713844a55c4e 114 */
Geremia 2:713844a55c4e 115 virtual void BusEnable(bool enable);
Geremia 2:713844a55c4e 116
Geremia 10:668cf78ff93a 117 /** Enable fast window (default disabled)
Geremia 10:668cf78ff93a 118 * used to speedup functions that plots single pixels, like circle, oblique lines or just sparse pixels
Geremia 10:668cf78ff93a 119 * @param enable true/false
Geremia 10:668cf78ff93a 120 * @note most but not all controllers support this, even if datasheet tells they should
Geremia 10:668cf78ff93a 121 */
Geremia 10:668cf78ff93a 122 void FastWindow(bool enable);
Geremia 10:668cf78ff93a 123
Geremia 7:bb0383b91104 124 /** Set scroll area boundaries
Geremia 7:bb0383b91104 125 * scroll is done in hw but only on the native vertical axis
Geremia 7:bb0383b91104 126 * TFTs are mainly native protrait view, so horizontal scroll if rotated in landscape view
Geremia 7:bb0383b91104 127 *
Geremia 7:bb0383b91104 128 * @param startY boundary offset from top (or left if rotated), 0 for fullscreen scroll
Geremia 7:bb0383b91104 129 * @param areasize size of the scroll area, 480 for fullscreen scroll of a 320x480 display
Geremia 7:bb0383b91104 130 */
Geremia 7:bb0383b91104 131 void setscrollarea (int startY, int areasize);
Geremia 7:bb0383b91104 132
Geremia 7:bb0383b91104 133 /** Scroll up(or left) the scrollarea
Geremia 7:bb0383b91104 134 *
Geremia 7:bb0383b91104 135 * @param lines number of lines to scroll, 1= scrollup 1, areasize-1= scrolldown 1
Geremia 7:bb0383b91104 136 */
Geremia 7:bb0383b91104 137 void scroll (int lines);
Geremia 7:bb0383b91104 138
Geremia 7:bb0383b91104 139 /** Reset the scrollarea and display un-scrolled screen
Geremia 7:bb0383b91104 140 *
Geremia 7:bb0383b91104 141 */
Geremia 7:bb0383b91104 142 void scrollreset();
Geremia 7:bb0383b91104 143
Geremia 7:bb0383b91104 144 /** get display X size in pixels (native, orientation independent)
Geremia 7:bb0383b91104 145 * @returns X size in pixels
Geremia 7:bb0383b91104 146 */
Geremia 7:bb0383b91104 147 int sizeX();
Geremia 7:bb0383b91104 148
Geremia 7:bb0383b91104 149 /** get display X size in pixels (native, orientation independent)
Geremia 7:bb0383b91104 150 * @returns screen height in pixels.
Geremia 7:bb0383b91104 151 */
Geremia 7:bb0383b91104 152 int sizeY();
Geremia 7:bb0383b91104 153
Geremia 7:bb0383b91104 154 unsigned int tftID;
Geremia 7:bb0383b91104 155
Geremia 7:bb0383b91104 156
Geremia 7:bb0383b91104 157
Geremia 2:713844a55c4e 158
Geremia 2:713844a55c4e 159 protected:
Geremia 2:713844a55c4e 160
Geremia 2:713844a55c4e 161
Geremia 2:713844a55c4e 162 ////// functions needed by parent class ///////////////////////////////////////
Geremia 2:713844a55c4e 163 ////// -------------------------------- ///////////////////////////////////////
Geremia 2:713844a55c4e 164
Geremia 2:713844a55c4e 165 /** Send 8bit command to display controller
Geremia 2:713844a55c4e 166 *
Geremia 2:713844a55c4e 167 * @param cmd: byte to send
Geremia 2:713844a55c4e 168 * @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 2:713844a55c4e 169 */
Geremia 2:713844a55c4e 170 void wr_cmd8(unsigned char cmd);
Geremia 2:713844a55c4e 171
Geremia 2:713844a55c4e 172 /** Send 8bit data to display controller
Geremia 2:713844a55c4e 173 *
Geremia 2:713844a55c4e 174 * @param data: byte to send
Geremia 2:713844a55c4e 175 *
Geremia 2:713844a55c4e 176 */
Geremia 2:713844a55c4e 177 void wr_data8(unsigned char data);
Geremia 2:713844a55c4e 178
Geremia 4:12ba0ecc2c1f 179 /** Send 2x8bit data to display controller
Geremia 2:713844a55c4e 180 *
Geremia 2:713844a55c4e 181 * @param data: halfword to send
Geremia 2:713844a55c4e 182 *
Geremia 2:713844a55c4e 183 */
Geremia 2:713844a55c4e 184 void wr_data16(unsigned short data);
Geremia 2:713844a55c4e 185
Geremia 4:12ba0ecc2c1f 186 /** Send 16bit pixeldata to display controller
Geremia 4:12ba0ecc2c1f 187 *
Geremia 4:12ba0ecc2c1f 188 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 189 *
Geremia 4:12ba0ecc2c1f 190 */
Geremia 4:12ba0ecc2c1f 191 virtual void wr_gram(unsigned short data);
Geremia 4:12ba0ecc2c1f 192
Geremia 4:12ba0ecc2c1f 193 /** Send same 16bit pixeldata to display controller multiple times
Geremia 2:713844a55c4e 194 *
Geremia 2:713844a55c4e 195 * @param data: halfword to send
Geremia 2:713844a55c4e 196 * @param count: how many
Geremia 2:713844a55c4e 197 *
Geremia 2:713844a55c4e 198 */
Geremia 4:12ba0ecc2c1f 199 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 2:713844a55c4e 200
Geremia 4:12ba0ecc2c1f 201 /** Send array of pixeldata shorts to display controller
Geremia 2:713844a55c4e 202 *
Geremia 4:12ba0ecc2c1f 203 * @param data: unsigned short pixeldata array
Geremia 2:713844a55c4e 204 * @param lenght: lenght (in shorts)
Geremia 2:713844a55c4e 205 *
Geremia 2:713844a55c4e 206 */
Geremia 4:12ba0ecc2c1f 207 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 2:713844a55c4e 208
Geremia 5:b222a9461d6b 209 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 5:b222a9461d6b 210 *
Geremia 11:b842b8e332cb 211 * @note autoconverts 18to16bit based on display identify info
Geremia 5:b222a9461d6b 212 * @returns 16bit color
Geremia 5:b222a9461d6b 213 */
Geremia 5:b222a9461d6b 214 virtual unsigned short rd_gram();
Geremia 5:b222a9461d6b 215
Geremia 7:bb0383b91104 216 /** Read 4x8bit register data (with dummy cycle)
Geremia 7:bb0383b91104 217 * @param reg the register to read
Geremia 7:bb0383b91104 218 * @returns data as uint
Geremia 7:bb0383b91104 219 *
Geremia 7:bb0383b91104 220 */
Geremia 7:bb0383b91104 221 virtual unsigned int rd_reg_data32(unsigned char reg);
Geremia 7:bb0383b91104 222
Geremia 7:bb0383b91104 223 /** Read 3x8bit ExtendedCommands register data
Geremia 7:bb0383b91104 224 * @param reg the register to read
Geremia 7:bb0383b91104 225 * @param SPIreadenablecmd vendor/device specific cmd to read EXTC registers
Geremia 7:bb0383b91104 226 * @returns data as uint
Geremia 7:bb0383b91104 227 * @note EXTC regs (0xB0 to 0xFF) are read/write registers but needs special cmd to be read in SPI mode
Geremia 7:bb0383b91104 228 */
Geremia 7:bb0383b91104 229 virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd);
Geremia 7:bb0383b91104 230
Geremia 2:713844a55c4e 231 /** HW reset sequence (without display init commands)
Geremia 2:713844a55c4e 232 */
Geremia 2:713844a55c4e 233 void hw_reset();
Geremia 4:12ba0ecc2c1f 234
Geremia 11:b842b8e332cb 235 /** Try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR
Geremia 11:b842b8e332cb 236 * autoset internal flags so pixelread() will always return correct value.
Geremia 11:b842b8e332cb 237 */
Geremia 11:b842b8e332cb 238 virtual void auto_gram_read_format();
Geremia 11:b842b8e332cb 239
Geremia 7:bb0383b91104 240 /** Try to identify display ID
Geremia 7:bb0383b91104 241 * @note support ILI9341,94xx, MIPI standard. May be be overridden in Init class for other specific IC
Geremia 7:bb0383b91104 242 */
Geremia 7:bb0383b91104 243 virtual void identify();
Geremia 7:bb0383b91104 244
Geremia 4:12ba0ecc2c1f 245 unsigned int scrollbugfix;
Geremia 11:b842b8e332cb 246
Geremia 2:713844a55c4e 247
Geremia 10:668cf78ff93a 248
Geremia 2:713844a55c4e 249 private:
Geremia 2:713844a55c4e 250
Geremia 2:713844a55c4e 251 Protocols* proto;
Geremia 7:bb0383b91104 252 const int screensize_X;
Geremia 7:bb0383b91104 253 const int screensize_Y;
Geremia 2:713844a55c4e 254 // pixel location
Geremia 2:713844a55c4e 255 int cur_x;
Geremia 2:713844a55c4e 256 int cur_y;
Geremia 2:713844a55c4e 257 // window location
Geremia 2:713844a55c4e 258 int win_x1;
Geremia 2:713844a55c4e 259 int win_x2;
Geremia 2:713844a55c4e 260 int win_y1;
Geremia 2:713844a55c4e 261 int win_y2;
Geremia 2:713844a55c4e 262 int orientation;
Geremia 7:bb0383b91104 263 int topfixedareasize;
Geremia 7:bb0383b91104 264 int scrollareasize;
Geremia 2:713844a55c4e 265 bool useNOP;
Geremia 10:668cf78ff93a 266 bool usefastwindow;
Geremia 10:668cf78ff93a 267 bool fastwindowready;
Geremia 11:b842b8e332cb 268 bool mipistd;
Geremia 11:b842b8e332cb 269 bool is18bit;
Geremia 11:b842b8e332cb 270 bool isBGR;
Geremia 10:668cf78ff93a 271
Geremia 2:713844a55c4e 272 };
Geremia 2:713844a55c4e 273
Geremia 2:713844a55c4e 274 #endif