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/SPI8.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 0:75ec1b3cde17 1 #ifndef SPI8_H
Geremia 0:75ec1b3cde17 2 #define SPI8_H
Geremia 0:75ec1b3cde17 3
Geremia 0:75ec1b3cde17 4 #include "mbed.h"
Geremia 0:75ec1b3cde17 5 #include "Protocols.h"
Geremia 0:75ec1b3cde17 6 //#include "GraphicsDisplay.h"
Geremia 0:75ec1b3cde17 7
Geremia 6:8356d48a07db 8 /** SPI 8bit interface
Geremia 6:8356d48a07db 9 */
Geremia 0:75ec1b3cde17 10 class SPI8 : public Protocols
Geremia 0:75ec1b3cde17 11 {
Geremia 0:75ec1b3cde17 12 public:
Geremia 0:75ec1b3cde17 13
Geremia 0:75ec1b3cde17 14 /** Create an SPI 8bit display interface with 3 control pins
Geremia 0:75ec1b3cde17 15 *
Geremia 0:75ec1b3cde17 16 * @param SPI mosi
Geremia 0:75ec1b3cde17 17 * @param SPI miso
Geremia 0:75ec1b3cde17 18 * @param SPI sclk
Geremia 0:75ec1b3cde17 19 * @param CS pin connected to CS of display
Geremia 0:75ec1b3cde17 20 * @param reset pin connected to RESET of display
Geremia 0:75ec1b3cde17 21 * @param DC pin connected to data/command of display
Geremia 0:75ec1b3cde17 22 */
Geremia 20:14daa48ffd4c 23 SPI8(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC=NC);
Geremia 0:75ec1b3cde17 24
Geremia 0:75ec1b3cde17 25 protected:
Geremia 0:75ec1b3cde17 26
Geremia 1:ff019d22b275 27 /** Send 8bit command to display controller
Geremia 0:75ec1b3cde17 28 *
Geremia 0:75ec1b3cde17 29 * @param cmd: byte to send
Geremia 0:75ec1b3cde17 30 *
Geremia 0:75ec1b3cde17 31 */
Geremia 1:ff019d22b275 32 virtual void wr_cmd8(unsigned char cmd);
Geremia 0:75ec1b3cde17 33
Geremia 1:ff019d22b275 34 /** Send 8bit data to display controller
Geremia 0:75ec1b3cde17 35 *
Geremia 1:ff019d22b275 36 * @param data: byte to send
Geremia 0:75ec1b3cde17 37 *
Geremia 0:75ec1b3cde17 38 */
Geremia 1:ff019d22b275 39 virtual void wr_data8(unsigned char data);
Geremia 0:75ec1b3cde17 40
Geremia 4:12ba0ecc2c1f 41 /** Send 2x8bit command to display controller
Geremia 1:ff019d22b275 42 *
Geremia 1:ff019d22b275 43 * @param cmd: halfword to send
Geremia 1:ff019d22b275 44 */
Geremia 1:ff019d22b275 45 virtual void wr_cmd16(unsigned short cmd);
Geremia 1:ff019d22b275 46
Geremia 4:12ba0ecc2c1f 47 /** Send 2x8bit data to display controller
Geremia 1:ff019d22b275 48 *
Geremia 1:ff019d22b275 49 * @param data: halfword to send
Geremia 1:ff019d22b275 50 *
Geremia 1:ff019d22b275 51 */
Geremia 1:ff019d22b275 52 virtual void wr_data16(unsigned short data);
Geremia 1:ff019d22b275 53
Geremia 4:12ba0ecc2c1f 54 /** Send 16bit pixeldata to display controller
Geremia 4:12ba0ecc2c1f 55 *
Geremia 4:12ba0ecc2c1f 56 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 57 *
Geremia 4:12ba0ecc2c1f 58 */
Geremia 4:12ba0ecc2c1f 59 virtual void wr_gram(unsigned short data);
Geremia 4:12ba0ecc2c1f 60
Geremia 4:12ba0ecc2c1f 61 /** Send same 16bit pixeldata to display controller multiple times
Geremia 1:ff019d22b275 62 *
Geremia 1:ff019d22b275 63 * @param data: halfword to send
Geremia 1:ff019d22b275 64 * @param count: how many
Geremia 1:ff019d22b275 65 *
Geremia 1:ff019d22b275 66 */
Geremia 4:12ba0ecc2c1f 67 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 1:ff019d22b275 68
Geremia 4:12ba0ecc2c1f 69 /** Send array of pixeldata shorts to display controller
Geremia 1:ff019d22b275 70 *
Geremia 4:12ba0ecc2c1f 71 * @param data: unsigned short pixeldata array
Geremia 1:ff019d22b275 72 * @param lenght: lenght (in shorts)
Geremia 1:ff019d22b275 73 *
Geremia 1:ff019d22b275 74 */
Geremia 4:12ba0ecc2c1f 75 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 0:75ec1b3cde17 76
Geremia 5:b222a9461d6b 77 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 5:b222a9461d6b 78 *
Geremia 11:b842b8e332cb 79 * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
Geremia 5:b222a9461d6b 80 * @returns 16bit color
Geremia 5:b222a9461d6b 81 */
Geremia 11:b842b8e332cb 82 virtual unsigned short rd_gram(bool convert);
Geremia 5:b222a9461d6b 83
Geremia 7:bb0383b91104 84 /** Read 4x8bit register data (with dummy cycle)
Geremia 7:bb0383b91104 85 * @param reg the register to read
Geremia 7:bb0383b91104 86 * @returns data as uint
Geremia 7:bb0383b91104 87 *
Geremia 7:bb0383b91104 88 */
Geremia 7:bb0383b91104 89 virtual unsigned int rd_reg_data32(unsigned char reg);
Geremia 7:bb0383b91104 90
Geremia 7:bb0383b91104 91 /** Read 3x8bit ExtendedCommands register data
Geremia 7:bb0383b91104 92 * @param reg the register to read
Geremia 7:bb0383b91104 93 * @param SPIreadenablecmd vendor/device specific cmd to read EXTC registers
Geremia 7:bb0383b91104 94 * @returns data as uint
Geremia 7:bb0383b91104 95 * @note EXTC regs (0xB0 to 0xFF) are read/write registers but needs special cmd to be read in SPI mode
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 0:75ec1b3cde17 128 /** HW reset sequence (without display init commands)
Geremia 0:75ec1b3cde17 129 */
Geremia 0:75ec1b3cde17 130 virtual void hw_reset();
Geremia 0:75ec1b3cde17 131
Geremia 0:75ec1b3cde17 132 /** Set ChipSelect high or low
Geremia 0:75ec1b3cde17 133 * @param enable 0/1
Geremia 0:75ec1b3cde17 134 */
Geremia 0:75ec1b3cde17 135 virtual void BusEnable(bool enable);
Geremia 0:75ec1b3cde17 136
Geremia 0:75ec1b3cde17 137 DigitalOut _CS;
Geremia 0:75ec1b3cde17 138
Geremia 0:75ec1b3cde17 139 private:
Geremia 0:75ec1b3cde17 140
Geremia 0:75ec1b3cde17 141 SPI _spi;
Geremia 0:75ec1b3cde17 142 DigitalOut _reset;
Geremia 0:75ec1b3cde17 143 DigitalOut _DC;
Geremia 0:75ec1b3cde17 144
Geremia 0:75ec1b3cde17 145 };
Geremia 0:75ec1b3cde17 146 #endif