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@22:62f3bed03503, 2015-05-06 (annotated)

Committer:
rakware
Date:
Wed May 06 16:52:07 2015 +0000
Revision:
22:62f3bed03503
Parent:
20:14daa48ffd4c 
added touch for ADS7843 bound to TFT class

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