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/*** Marlin 3D Printer Firmware* Copyright (C) 2016, 2017 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]** Based on Sprinter and grbl.* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm** This program is free software: you can redistribute it and/or modify* it under the terms of the GNU General Public License as published by* the Free Software Foundation, either version 3 of the License, or* (at your option) any later version.** This program is distributed in the hope that it will be useful,* but WITHOUT ANY WARRANTY; without even the implied warranty of* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the* GNU General Public License for more details.** You should have received a copy of the GNU General Public License* along with this program. If not, see <http://www.gnu.org/licenses/>.**/#ifndef ULCDST7565_H#define ULCDST7565_H#include <U8glib.h>#include "delay.h"#define ST7565_CLK_PIN DOGLCD_SCK#define ST7565_DAT_PIN DOGLCD_MOSI#define ST7565_CS_PIN DOGLCD_CS#define ST7565_A0_PIN DOGLCD_A0#define LCD_PIXEL_WIDTH 128#define LCD_PIXEL_HEIGHT 64#define PAGE_HEIGHT 8//set optimization so ARDUINO optimizes this file#pragma GCC optimize (3)// If you want you can define your own set of delays in Configuration.h//#define ST7565_DELAY_1 DELAY_NS(0)//#define ST7565_DELAY_2 DELAY_NS(0)//#define ST7565_DELAY_3 DELAY_NS(0)/*#define ST7565_DELAY_1 u8g_10MicroDelay()#define ST7565_DELAY_2 u8g_10MicroDelay()#define ST7565_DELAY_3 u8g_10MicroDelay()*/#if F_CPU >= 20000000#define CPU_ST7565_DELAY_1 DELAY_NS(0)#define CPU_ST7565_DELAY_2 DELAY_NS(0)#define CPU_ST7565_DELAY_3 DELAY_NS(63)#elif MB(3DRAG) || MB(K8200) || MB(K8400)#define CPU_ST7565_DELAY_1 DELAY_NS(0)#define CPU_ST7565_DELAY_2 DELAY_NS(188)#define CPU_ST7565_DELAY_3 DELAY_NS(0)#elif MB(MINIRAMBO)#define CPU_ST7565_DELAY_1 DELAY_NS(0)#define CPU_ST7565_DELAY_2 DELAY_NS(250)#define CPU_ST7565_DELAY_3 DELAY_NS(0)#elif MB(RAMBO)#define CPU_ST7565_DELAY_1 DELAY_NS(0)#define CPU_ST7565_DELAY_2 DELAY_NS(0)#define CPU_ST7565_DELAY_3 DELAY_NS(0)#elif F_CPU == 16000000#define CPU_ST7565_DELAY_1 DELAY_NS(0)#define CPU_ST7565_DELAY_2 DELAY_NS(0)#define CPU_ST7565_DELAY_3 DELAY_NS(63)#else#error "No valid condition for delays in 'ultralcd_st7565_u8glib_VIKI.h'"#endif#ifndef ST7565_DELAY_1#define ST7565_DELAY_1 CPU_ST7565_DELAY_1#endif#ifndef ST7565_DELAY_2#define ST7565_DELAY_2 CPU_ST7565_DELAY_2#endif#ifndef ST7565_DELAY_3#define ST7565_DELAY_3 CPU_ST7565_DELAY_3#endif// On Viki2 the LCD and the SD card share a single SPI#define HARDWARE_SPI ((DOGLCD_SCK == SCK_PIN) && (DOGLCD_MOSI == MOSI_PIN))#if HARDWARE_SPI // using the hardware SPI#define ST7565_WRITE_BYTE(a) { SPDR = a; while (!TEST(SPSR, SPIF)); U8G_DELAY(); }#define ST7560_WriteSequence(count, pointer) { uint8_t *ptr = pointer; for (uint8_t i = 0; i < count; i++) {SPDR = *ptr++; while (!TEST(SPSR, SPIF));} U8G_DELAY(); }#else // !HARDWARE_SPI#define ST7565_SND_BIT \WRITE(ST7565_CLK_PIN, LOW); ST7565_DELAY_1; \WRITE(ST7565_DAT_PIN, val & 0x80); ST7565_DELAY_2; \WRITE(ST7565_CLK_PIN, HIGH); ST7565_DELAY_3; \WRITE(ST7565_CLK_PIN, LOW);\val <<= 1static void ST7565_SWSPI_SND_8BIT(uint8_t val) {ST7565_SND_BIT; // 1ST7565_SND_BIT; // 2ST7565_SND_BIT; // 3ST7565_SND_BIT; // 4ST7565_SND_BIT; // 5ST7565_SND_BIT; // 6ST7565_SND_BIT; // 7ST7565_SND_BIT; // 8}#define ST7565_WRITE_BYTE(a) { ST7565_SWSPI_SND_8BIT((uint8_t)a); U8G_DELAY(); }#define ST7560_WriteSequence(count, pointer) { uint8_t *ptr = pointer; for (uint8_t i = 0; i < count; i++) { ST7565_SWSPI_SND_8BIT(*ptr++); } U8G_DELAY(); }#endif // !HARDWARE_SPI#if DOGM_SPI_DELAY_US > 0#define U8G_DELAY() DELAY_US(DOGM_SPI_DELAY_US)#else#define U8G_DELAY() u8g_10MicroDelay()#endif#define ST7565_CS() do{ WRITE(ST7565_CS_PIN, HIGH); U8G_DELAY(); }while(0)#define ST7565_NCS() WRITE(ST7565_CS_PIN, LOW)#define ST7565_A0() do{ WRITE(ST7565_A0_PIN, HIGH); U8G_DELAY(); }while(0)#define ST7565_NA0() WRITE(ST7565_A0_PIN, LOW)#define ST7565_ADC_REVERSE(N) ST7565_WRITE_BYTE(0xA0 | ((N) & 0x1))#define ST7565_BIAS_MODE(N) ST7565_WRITE_BYTE(0xA2 | ((N) & 0x1))#define ST7565_ALL_PIX(N) ST7565_WRITE_BYTE(0xA4 | ((N) & 0x1))#define ST7565_INVERTED(N) ST7565_WRITE_BYTE(0xA6 | ((N) & 0x1))#define ST7565_ON(N) ST7565_WRITE_BYTE(0xAE | ((N) & 0x1))#define ST7565_OUT_MODE(N) ST7565_WRITE_BYTE(0xC0 | ((N) & 0x1) << 3)#define ST7565_POWER_CONTROL(N) ST7565_WRITE_BYTE(0x28 | (N))#define ST7565_V0_RATIO(N) ST7565_WRITE_BYTE(0x10 | ((N) & 0x7)) // Specific to Displaytech 64128N? (ST7565 is 0x20 | N)#define ST7565_CONTRAST(N) do{ ST7565_WRITE_BYTE(0x81); ST7565_WRITE_BYTE(N); }while(0)#define ST7565_COLUMN_ADR(N) do{ ST7565_WRITE_BYTE(0x10 | (((N) >> 4) & 0xF)); ST7565_WRITE_BYTE((N) & 0xF); }while(0)#define ST7565_PAGE_ADR(N) ST7565_WRITE_BYTE(0xB0 | (N))#define ST7565_START_LINE(N) ST7565_WRITE_BYTE(0x40 | (N))#define ST7565_SLEEP_MODE() ST7565_WRITE_BYTE(0xAC)#define ST7565_NOOP() ST7565_WRITE_BYTE(0xE3)uint8_t u8g_dev_st7565_64128n_2x_VIKI_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {switch (msg) {case U8G_DEV_MSG_INIT: {OUT_WRITE(ST7565_CS_PIN, LOW);OUT_WRITE(ST7565_DAT_PIN, LOW);OUT_WRITE(ST7565_CLK_PIN, LOW);#if HARDWARE_SPIOUT_WRITE(SDSS, 1); // must be set to an output first or else will never go into master modeSPCR = 0x50; // enable SPI in master mode at fast speedSPSR = 1; // kick it up to 2x speed mode#endifOUT_WRITE(ST7565_A0_PIN, LOW);ST7565_CS(); // chip select offST7565_NA0(); // instruction modeST7565_NCS(); // chip selectST7565_BIAS_MODE(0); // 0xA2: LCD bias 1/9 (according to Displaytech 64128N datasheet)ST7565_ADC_REVERSE(0); // Normal (not flipped) ADC Select (according to Displaytech 64128N datasheet)ST7565_OUT_MODE(1); // common output mode: set scan direction normal operation/SHL Select; 0x0C0 --> SHL = 0; normal; 0x0C8 --> SHL = 1ST7565_START_LINE(0); // Display start line for Displaytech 64128NST7565_POWER_CONTROL(0x4); // power control: turn on BoosterU8G_ESC_DLY(50); // delay 50 ms - hangs after a reset if usedST7565_POWER_CONTROL(0x6); // power control: turn on Booster, Voltage RegulatorU8G_ESC_DLY(50); // delay 50 ms - hangs after a reset if usedST7565_POWER_CONTROL(0x7); // power control: turn on Booster, Voltage Regulator, Voltage FollowerU8G_ESC_DLY(50); // delay 50 ms - hangs after a reset if usedST7565_V0_RATIO(0); // Set V0 Voltage Resistor ratio. Setting for controlling brightness of Displaytech 64128NST7565_INVERTED(0); // display normal, bit val 0: LCD pixel off.ST7565_CONTRAST(0x1E); // Contrast value. Setting for controlling contrast of Displaytech 64128NST7565_ON(1); // display onU8G_ESC_DLY(100); // delay 100 msST7565_ALL_PIX(1); // display all points; ST7565U8G_ESC_DLY(100); // delay 100 msU8G_ESC_DLY(100); // delay 100 msST7565_ALL_PIX(0); // normal displayST7565_CS(); // chip select off} // end of sequencebreak;case U8G_DEV_MSG_STOP: break;case U8G_DEV_MSG_PAGE_NEXT: {u8g_pb_t *pb = (u8g_pb_t*)(dev->dev_mem);ST7565_CS(); // chip select offST7565_NA0(); // instruction modeST7565_NCS(); // chip selectST7565_COLUMN_ADR(0x00); // high 4 bits to 0, low 4 bits to 0. Changed for DisplayTech 64128N// end of sequenceST7565_PAGE_ADR(2 * pb->p.page); // select current page (ST7565R)ST7565_A0(); // data modeST7560_WriteSequence((uint8_t)pb->width, (uint8_t*)pb->buf);ST7565_CS(); // chip select offST7565_NA0(); // instruction modeST7565_NCS(); // chip selectST7565_COLUMN_ADR(0x00); // high 4 bits to 0, low 4 bits to 0// end of sequenceST7565_PAGE_ADR(2 * pb->p.page + 1); // select current page (ST7565R)ST7565_A0(); // data modeST7560_WriteSequence((uint8_t)pb->width, (uint8_t*)(pb->buf) + pb->width);ST7565_CS(); // chip select off}break;case U8G_DEV_MSG_CONTRAST:ST7565_NCS();ST7565_NA0(); // instruction modeST7565_CONTRAST((*(uint8_t*)arg) >> 2);ST7565_CS(); // chip select offreturn 1;case U8G_DEV_MSG_SLEEP_ON:ST7565_NA0(); // instruction modeST7565_NCS(); // chip selectST7565_SLEEP_MODE(); // static indicator off//ST7565_WRITE_BYTE(0x00); // indicator register set (not sure if this is required)ST7565_ON(0); // display offST7565_ALL_PIX(1); // all points onST7565_CS(); // chip select offreturn 1;case U8G_DEV_MSG_SLEEP_OFF:ST7565_NA0(); // instruction modeST7565_NCS(); // chip selectST7565_ALL_PIX(0); // all points offST7565_ON(1); // display onU8G_ESC_DLY(50); // delay 50 msST7565_CS(); // chip select offreturn 1;}return u8g_dev_pb16v1_base_fn(u8g, dev, msg, arg);}uint8_t u8g_dev_st7565_64128n_2x_VIKI_buf[LCD_PIXEL_WIDTH * 2] U8G_NOCOMMON;u8g_pb_t u8g_dev_st7565_64128n_2x_VIKI_pb = {{16, LCD_PIXEL_HEIGHT, 0, 0, 0}, LCD_PIXEL_WIDTH, u8g_dev_st7565_64128n_2x_VIKI_buf};u8g_dev_t u8g_dev_st7565_64128n_2x_VIKI_sw_spi = {u8g_dev_st7565_64128n_2x_VIKI_fn, &u8g_dev_st7565_64128n_2x_VIKI_pb, &u8g_com_null_fn};class U8GLIB_ST7565_64128n_2x_VIKI : public U8GLIB {public:U8GLIB_ST7565_64128n_2x_VIKI(uint8_t dummy): U8GLIB(&u8g_dev_st7565_64128n_2x_VIKI_sw_spi){ }U8GLIB_ST7565_64128n_2x_VIKI(uint8_t sck, uint8_t mosi, uint8_t cs, uint8_t a0, uint8_t reset = U8G_PIN_NONE): U8GLIB(&u8g_dev_st7565_64128n_2x_VIKI_sw_spi){ }};#pragma GCC reset_options#endif // ULCDST7565_H