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

Protocols/PAR16.h@20:14daa48ffd4c, 2015-03-23 (annotated)

Committer:
Geremia
Date:
Mon Mar 23 14:08:04 2015 +0000
Revision:
20:14daa48ffd4c
Parent:
11:b842b8e332cb 
Add  ILI 9320/9325/9328 custom TFT932x class, parallel/spi 8/16bit, with orientation, scroll, pixelread, fastwindow.; Par8 and 16 tested, SPI not at all, needs checking if the CS toggle is necessary (see SPI8.cpp SPI16.cpp).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 #ifndef PAR16_H
Geremia 4:12ba0ecc2c1f 2 #define PAR16_H
Geremia 4:12ba0ecc2c1f 3
Geremia 4:12ba0ecc2c1f 4 #include "mbed.h"
Geremia 4:12ba0ecc2c1f 5 #include "Protocols.h"
Geremia 4:12ba0ecc2c1f 6 //#include "GraphicsDisplay.h"
Geremia 4:12ba0ecc2c1f 7
Geremia 6:8356d48a07db 8 /** Parallel 16bit interface
Geremia 6:8356d48a07db 9 */
Geremia 4:12ba0ecc2c1f 10 class PAR16 : public Protocols
Geremia 4:12ba0ecc2c1f 11 {
Geremia 4:12ba0ecc2c1f 12 public:
Geremia 4:12ba0ecc2c1f 13
Geremia 4:12ba0ecc2c1f 14 /** Create a PAR16 display interface with a GPIO port and 5 control pins
Geremia 4:12ba0ecc2c1f 15 *
Geremia 4:12ba0ecc2c1f 16 * @param port GPIO port to use
Geremia 4:12ba0ecc2c1f 17 * @param CS pin connected to CS of display
Geremia 4:12ba0ecc2c1f 18 * @param reset pin connected to RESET of display
Geremia 4:12ba0ecc2c1f 19 * @param DC pin connected to data/command of display
Geremia 4:12ba0ecc2c1f 20 * @param WR pin connected to SDI of display
Geremia 4:12ba0ecc2c1f 21 * @param RD pin connected to RS of display
Geremia 4:12ba0ecc2c1f 22 */
Geremia 4:12ba0ecc2c1f 23 PAR16(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD);
Geremia 4:12ba0ecc2c1f 24
Geremia 4:12ba0ecc2c1f 25 protected:
Geremia 4:12ba0ecc2c1f 26
Geremia 4:12ba0ecc2c1f 27 /** Send 8bit command to display controller
Geremia 4:12ba0ecc2c1f 28 *
Geremia 4:12ba0ecc2c1f 29 * @param cmd: byte to send
Geremia 4:12ba0ecc2c1f 30 *
Geremia 4:12ba0ecc2c1f 31 */
Geremia 4:12ba0ecc2c1f 32 virtual void wr_cmd8(unsigned char cmd);
Geremia 4:12ba0ecc2c1f 33
Geremia 4:12ba0ecc2c1f 34 /** Send 8bit data to display controller
Geremia 4:12ba0ecc2c1f 35 *
Geremia 4:12ba0ecc2c1f 36 * @param data: byte to send
Geremia 4:12ba0ecc2c1f 37 *
Geremia 4:12ba0ecc2c1f 38 */
Geremia 4:12ba0ecc2c1f 39 virtual void wr_data8(unsigned char data);
Geremia 4:12ba0ecc2c1f 40
Geremia 4:12ba0ecc2c1f 41 /** Send 2x8bit command to display controller
Geremia 4:12ba0ecc2c1f 42 *
Geremia 4:12ba0ecc2c1f 43 * @param cmd: halfword to send
Geremia 4:12ba0ecc2c1f 44 * @note 2cycles using pins[7:0]
Geremia 4:12ba0ecc2c1f 45 */
Geremia 4:12ba0ecc2c1f 46 virtual void wr_cmd16(unsigned short cmd);
Geremia 4:12ba0ecc2c1f 47
Geremia 4:12ba0ecc2c1f 48 /** Send 2x8bit data to display controller
Geremia 4:12ba0ecc2c1f 49 *
Geremia 4:12ba0ecc2c1f 50 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 51 * @note 2cycles using pins[7:0], only gram write cmd uses pins[15:8]
Geremia 4:12ba0ecc2c1f 52 */
Geremia 4:12ba0ecc2c1f 53 virtual void wr_data16(unsigned short data);
Geremia 4:12ba0ecc2c1f 54
Geremia 4:12ba0ecc2c1f 55 /** Send 16bit pixeldata to display controller
Geremia 4:12ba0ecc2c1f 56 *
Geremia 4:12ba0ecc2c1f 57 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 58 * @note here using all pins[15:0]
Geremia 4:12ba0ecc2c1f 59 */
Geremia 4:12ba0ecc2c1f 60 virtual void wr_gram(unsigned short data);
Geremia 4:12ba0ecc2c1f 61
Geremia 4:12ba0ecc2c1f 62 /** Send same 16bit pixeldata to display controller multiple times
Geremia 4:12ba0ecc2c1f 63 *
Geremia 4:12ba0ecc2c1f 64 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 65 * @param count: how many
Geremia 4:12ba0ecc2c1f 66 * @note here using all pins[15:0]
Geremia 4:12ba0ecc2c1f 67 */
Geremia 4:12ba0ecc2c1f 68 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 4:12ba0ecc2c1f 69
Geremia 4:12ba0ecc2c1f 70 /** Send array of pixeldata shorts to display controller
Geremia 4:12ba0ecc2c1f 71 *
Geremia 4:12ba0ecc2c1f 72 * @param data: unsigned short pixeldata array
Geremia 4:12ba0ecc2c1f 73 * @param lenght: lenght (in shorts)
Geremia 4:12ba0ecc2c1f 74 * @note here using all pins[15:0]
Geremia 4:12ba0ecc2c1f 75 */
Geremia 4:12ba0ecc2c1f 76 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 4:12ba0ecc2c1f 77
Geremia 5:b222a9461d6b 78 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 5:b222a9461d6b 79 *
Geremia 11:b842b8e332cb 80 * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
Geremia 5:b222a9461d6b 81 * @returns 16bit color
Geremia 5:b222a9461d6b 82 */
Geremia 11:b842b8e332cb 83 virtual unsigned short rd_gram(bool convert);
Geremia 5:b222a9461d6b 84
Geremia 7:bb0383b91104 85 /** Read 4x8bit register data (with dummy cycle)
Geremia 7:bb0383b91104 86 * @param reg the register to read
Geremia 7:bb0383b91104 87 * @returns data as uint
Geremia 7:bb0383b91104 88 *
Geremia 7:bb0383b91104 89 */
Geremia 7:bb0383b91104 90 virtual unsigned int rd_reg_data32(unsigned char reg);
Geremia 7:bb0383b91104 91
Geremia 7:bb0383b91104 92 /** Read 3x8bit ExtendedCommands register data
Geremia 7:bb0383b91104 93 * @param reg the register to read
Geremia 7:bb0383b91104 94 * @returns data as uint
Geremia 7:bb0383b91104 95 * @note EXTC regs (0xB0 to 0xFF) are read/write registers, for Parallel mode directly accessible in both directions
Geremia 7:bb0383b91104 96 */
Geremia 7:bb0383b91104 97 virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd);
Geremia 7:bb0383b91104 98
Geremia 20:14daa48ffd4c 99 /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent
Geremia 20:14daa48ffd4c 100 * for PAR protocols: a signle RD bit toggle
Geremia 20:14daa48ffd4c 101 * for SPI8: 8clocks
Geremia 20:14daa48ffd4c 102 * for SPI16: 16 clocks
Geremia 20:14daa48ffd4c 103 */
Geremia 20:14daa48ffd4c 104 virtual void dummyread ();
Geremia 20:14daa48ffd4c 105
Geremia 20:14daa48ffd4c 106 /** ILI932x specific, select register for a successive write or read
Geremia 20:14daa48ffd4c 107 *
Geremia 20:14daa48ffd4c 108 * @param reg register to be selected
Geremia 20:14daa48ffd4c 109 * @param forread false = a write next (default), true = a read next
Geremia 20:14daa48ffd4c 110 * @note forread only used by SPI protocols
Geremia 20:14daa48ffd4c 111 */
Geremia 20:14daa48ffd4c 112 virtual void reg_select(unsigned char reg, bool forread =false);
Geremia 20:14daa48ffd4c 113
Geremia 20:14daa48ffd4c 114 /** ILI932x specific, write register with data
Geremia 20:14daa48ffd4c 115 *
Geremia 20:14daa48ffd4c 116 * @param reg register to write
Geremia 20:14daa48ffd4c 117 * @param data 16bit data
Geremia 20:14daa48ffd4c 118 */
Geremia 20:14daa48ffd4c 119 virtual void reg_write(unsigned char reg, unsigned short data);
Geremia 20:14daa48ffd4c 120
Geremia 20:14daa48ffd4c 121 /** ILI932x specific, read register
Geremia 20:14daa48ffd4c 122 *
Geremia 20:14daa48ffd4c 123 * @param reg register to be read
Geremia 20:14daa48ffd4c 124 * @returns 16bit register value
Geremia 20:14daa48ffd4c 125 */
Geremia 20:14daa48ffd4c 126 virtual unsigned short reg_read(unsigned char reg);
Geremia 20:14daa48ffd4c 127
Geremia 4:12ba0ecc2c1f 128 /** HW reset sequence (without display init commands)
Geremia 4:12ba0ecc2c1f 129 */
Geremia 4:12ba0ecc2c1f 130 virtual void hw_reset();
Geremia 4:12ba0ecc2c1f 131
Geremia 4:12ba0ecc2c1f 132 /** Set ChipSelect high or low
Geremia 4:12ba0ecc2c1f 133 * @param enable 0/1
Geremia 4:12ba0ecc2c1f 134 */
Geremia 4:12ba0ecc2c1f 135 virtual void BusEnable(bool enable);
Geremia 4:12ba0ecc2c1f 136
Geremia 4:12ba0ecc2c1f 137
Geremia 4:12ba0ecc2c1f 138
Geremia 4:12ba0ecc2c1f 139 private:
Geremia 4:12ba0ecc2c1f 140
Geremia 4:12ba0ecc2c1f 141 PortInOut _port;
Geremia 4:12ba0ecc2c1f 142 DigitalOut _CS;
Geremia 4:12ba0ecc2c1f 143 DigitalOut _reset;
Geremia 4:12ba0ecc2c1f 144 DigitalOut _DC;
Geremia 4:12ba0ecc2c1f 145 DigitalOut _WR;
Geremia 4:12ba0ecc2c1f 146 DigitalOut _RD;
Geremia 4:12ba0ecc2c1f 147
Geremia 4:12ba0ecc2c1f 148 };
Geremia 4:12ba0ecc2c1f 149 #endif