--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/unigraphic/Protocols.h Tue Sep 20 23:50:45 2016 +0200
@@ -0,0 +1,163 @@
+ /* mbed UniGraphic library - Abstract protocol class
+ * Copyright (c) 2015 Giuliano Dianda
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+/** @file Protocols.h
+*/
+#ifndef Protocols_H
+#define Protocols_H
+
+#include "mbed.h"
+
+#define RGB24to16(r,g,b) (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue
+#define BGR2RGB(color) (((color&0x1F)<<11) | (color&0x7E0) | ((color&0xF800)>>11))
+
+#define FLIP_NONE 0
+#define FLIP_X 1
+#define FLIP_Y 2
+
+//#define USE_CS
+
+/** Protocol types
+*/
+#include "platform.h"
+
+#if DEVICE_PORTINOUT
+enum proto_t {
+ PAR_8 /**< Parallel 8bit, port pins 0 to 7 */
+ ,PAR_16 /**< Parallel 16bit, port pins 0 to 15 */
+ ,BUS_8 /**< Parallel 8bit, scattered pins */
+ ,BUS_16 /**< Parallel 16bit, scattered pins */
+ ,SPI_8 /**< SPI 8bit */
+ ,SPI_16 /**< SPI 16bit */
+};
+#else
+enum proto_t {
+ BUS_8 /**< Parallel 8bit, scattered pins */
+ ,BUS_16 /**< Parallel 16bit, scattered pins */
+ ,SPI_8 /**< SPI 8bit */
+ ,SPI_16 /**< SPI 16bit */
+};
+#endif
+
+
+/** Abstract interface class for spi and parallel protocols
+*/
+class Protocols
+{
+ public:
+
+ /** Send 8bit command to display controller
+ *
+ * @param cmd: byte to send
+ *
+ */
+ virtual void wr_cmd8(unsigned char cmd) = 0;
+
+ /** Send 8bit data to display controller
+ *
+ * @param data: byte to send
+ *
+ */
+ virtual void wr_data8(unsigned char data) = 0;
+
+ /** Send 2x8bit command to display controller
+ *
+ * @param cmd: halfword to send
+ *
+ */
+ virtual void wr_cmd16(unsigned short cmd) = 0;
+
+ /** Send 2x8bit data to display controller
+ *
+ * @param data: halfword to send
+ *
+ */
+ virtual void wr_data16(unsigned short data) = 0;
+
+ /** Send 16bit pixeldata to display controller
+ *
+ * @param data: halfword to send
+ *
+ */
+ virtual void wr_gram(unsigned short data) = 0;
+
+ /** Send same 16bit pixeldata to display controller multiple times
+ *
+ * @param data: halfword to send
+ * @param count: how many
+ *
+ */
+ virtual void wr_gram(unsigned short data, unsigned int count) = 0;
+
+ /** Send array of pixeldata shorts to display controller
+ *
+ * @param data: unsigned short pixeldata array
+ * @param lenght: lenght (in shorts)
+ *
+ */
+ virtual void wr_grambuf(unsigned short* data, unsigned int lenght) = 0;
+
+ /** Read 16bit pixeldata from display controller (with dummy cycle)
+ *
+ * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
+ * @returns 16bit color
+ */
+ virtual unsigned short rd_gram(bool convert) = 0;
+
+ /** Read 4x8bit register data (with dummy cycle)
+ * @param reg the register to read
+ * @returns data as uint
+ *
+ */
+ virtual unsigned int rd_reg_data32(unsigned char reg) = 0;
+
+ /** Read 3x8bit ExtendedCommands register data
+ * @param reg the register to read
+ * @param SPIreadenablecmd vendor/device specific cmd to read EXTC registers
+ * @returns data as uint
+ * @note EXTC regs (0xB0 to 0xFF) are read/write registers but needs special cmd to be read in SPI mode
+ */
+ virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd) = 0;
+
+ /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent
+ * for PAR protocols: a signle RD bit toggle
+ * for SPI8: 8clocks
+ * for SPI16: 16 clocks
+ */
+ virtual void dummyread () = 0;
+
+ /** ILI932x specific, select register for a successive write or read
+ *
+ * @param reg register to be selected
+ * @param forread false = a write next (default), true = a read next
+ * @note forread only used by SPI protocols
+ */
+ virtual void reg_select(unsigned char reg, bool forread =false) = 0;
+
+ /** ILI932x specific, write register with data
+ *
+ * @param reg register to write
+ * @param data 16bit data
+ */
+ virtual void reg_write(unsigned char reg, unsigned short data) = 0;
+
+ /** ILI932x specific, read register
+ *
+ * @param reg register to be read
+ * @returns 16bit register value
+ */
+ virtual unsigned short reg_read(unsigned char reg) = 0;
+
+ /** HW reset sequence (without display init commands)
+ */
+ virtual void hw_reset() = 0;
+
+ /** Set ChipSelect high or low
+ * @param enable 0/1
+ */
+ virtual void BusEnable(bool enable) = 0;
+
+};
+#endif
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