/** * Marlin 3D Printer Firmware * Copyright (c) 2020 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 . * */ // NOTE - the HAL version of the rrd device uses a generic ST7920 device. See the // file u8g_dev_st7920_128x64_HAL.cpp for the HAL version. #include "../../inc/MarlinConfigPre.h" #if !defined(U8G_HAL_LINKS) && ANY(__AVR__, ARDUINO_ARCH_STM32, ARDUINO_ARCH_ESP32) #include "../../inc/MarlinConfig.h" #if ENABLED(U8GLIB_ST7920) #include "ultralcd_st7920_u8glib_rrd_AVR.h" // Optimize this code with -O3 #pragma GCC optimize (3) #ifndef ST7920_DELAY_1 #ifndef LCD_ST7920_DELAY_1 #define LCD_ST7920_DELAY_1 0 #endif #ifndef BOARD_ST7920_DELAY_1 #define BOARD_ST7920_DELAY_1 0 #endif #ifndef CPU_ST7920_DELAY_1 #define CPU_ST7920_DELAY_1 0 #endif #if LCD_ST7920_DELAY_1 || BOARD_ST7920_DELAY_1 || CPU_ST7920_DELAY_1 #define ST7920_DELAY_1 DELAY_NS(_MAX(LCD_ST7920_DELAY_1, BOARD_ST7920_DELAY_1, CPU_ST7920_DELAY_1)) #else #define ST7920_DELAY_1 #endif #endif #ifndef ST7920_DELAY_2 #ifndef LCD_ST7920_DELAY_2 #define LCD_ST7920_DELAY_2 0 #endif #ifndef BOARD_ST7920_DELAY_2 #define BOARD_ST7920_DELAY_2 0 #endif #ifndef CPU_ST7920_DELAY_2 #define CPU_ST7920_DELAY_2 0 #endif #if LCD_ST7920_DELAY_2 || BOARD_ST7920_DELAY_2 || CPU_ST7920_DELAY_2 #define ST7920_DELAY_2 DELAY_NS(_MAX(LCD_ST7920_DELAY_2, BOARD_ST7920_DELAY_2, CPU_ST7920_DELAY_2)) #else #define ST7920_DELAY_2 #endif #endif #ifndef ST7920_DELAY_3 #ifndef LCD_ST7920_DELAY_3 #define LCD_ST7920_DELAY_3 0 #endif #ifndef BOARD_ST7920_DELAY_3 #define BOARD_ST7920_DELAY_3 0 #endif #ifndef CPU_ST7920_DELAY_3 #define CPU_ST7920_DELAY_3 0 #endif #if LCD_ST7920_DELAY_3 || BOARD_ST7920_DELAY_3 || CPU_ST7920_DELAY_3 #define ST7920_DELAY_3 DELAY_NS(_MAX(LCD_ST7920_DELAY_3, BOARD_ST7920_DELAY_3, CPU_ST7920_DELAY_3)) #else #define ST7920_DELAY_3 #endif #endif #ifdef ARDUINO_ARCH_STM32F1 #define ST7920_DAT(V) !!((V) & 0x80) #else #define ST7920_DAT(V) ((V) & 0x80) #endif #define ST7920_SND_BIT do{ \ WRITE(ST7920_CLK_PIN, LOW); ST7920_DELAY_1; \ WRITE(ST7920_DAT_PIN, ST7920_DAT(val)); ST7920_DELAY_2; \ WRITE(ST7920_CLK_PIN, HIGH); ST7920_DELAY_3; \ val <<= 1; }while(0) // Optimize this code with -O3 #pragma GCC optimize (3) void ST7920_SWSPI_SND_8BIT(uint8_t val) { ST7920_SND_BIT; // 1 ST7920_SND_BIT; // 2 ST7920_SND_BIT; // 3 ST7920_SND_BIT; // 4 ST7920_SND_BIT; // 5 ST7920_SND_BIT; // 6 ST7920_SND_BIT; // 7 ST7920_SND_BIT; // 8 } uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) { uint8_t i, y; switch (msg) { case U8G_DEV_MSG_INIT: { OUT_WRITE(ST7920_CS_PIN, LOW); OUT_WRITE(ST7920_DAT_PIN, LOW); OUT_WRITE(ST7920_CLK_PIN, HIGH); ST7920_CS(); u8g_Delay(120); // Initial delay for boot up ST7920_SET_CMD(); ST7920_WRITE_BYTE(0x20); // Non-extended mode ST7920_WRITE_BYTE(0x08); // Display off, cursor+blink off ST7920_WRITE_BYTE(0x01); // Clear DDRAM ram u8g_Delay(15); // Delay for DDRAM clear ST7920_WRITE_BYTE(0x24); // Extended mode ST7920_WRITE_BYTE(0x26); // Extended mode + GDRAM active for (y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { // Clear GDRAM ST7920_WRITE_BYTE(0x80 | y); // Set y ST7920_WRITE_BYTE(0x80); // Set x = 0 ST7920_SET_DAT(); for (i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) // 2x width clears both segments ST7920_WRITE_BYTE(0); ST7920_SET_CMD(); } ST7920_WRITE_BYTE(0x0C); // Display on, cursor+blink off ST7920_NCS(); } break; case U8G_DEV_MSG_STOP: break; case U8G_DEV_MSG_PAGE_NEXT: { uint8_t *ptr; u8g_pb_t *pb = (u8g_pb_t*)(dev->dev_mem); y = pb->p.page_y0; ptr = (uint8_t*)pb->buf; ST7920_CS(); for (i = 0; i < PAGE_HEIGHT; i ++) { ST7920_SET_CMD(); if (y < 32) { ST7920_WRITE_BYTE(0x80 | y); // y ST7920_WRITE_BYTE(0x80); // x = 0 } else { ST7920_WRITE_BYTE(0x80 | (y - 32)); // y ST7920_WRITE_BYTE(0x80 | 8); // x = 64 } ST7920_SET_DAT(); ST7920_WRITE_BYTES(ptr, (LCD_PIXEL_WIDTH) / 8); // ptr incremented inside of macro! y++; } ST7920_NCS(); } break; } #if PAGE_HEIGHT == 8 return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg); #elif PAGE_HEIGHT == 16 return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg); #else return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg); #endif } uint8_t u8g_dev_st7920_128x64_rrd_buf[(LCD_PIXEL_WIDTH) * (PAGE_HEIGHT) / 8] U8G_NOCOMMON; u8g_pb_t u8g_dev_st7920_128x64_rrd_pb = { { PAGE_HEIGHT, LCD_PIXEL_HEIGHT, 0, 0, 0 }, LCD_PIXEL_WIDTH, u8g_dev_st7920_128x64_rrd_buf }; u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = { u8g_dev_rrd_st7920_128x64_fn, &u8g_dev_st7920_128x64_rrd_pb, &u8g_com_null_fn }; #pragma GCC reset_options #if ENABLED(LIGHTWEIGHT_UI) #include "../../HAL/shared/HAL_ST7920.h" void ST7920_cs() { ST7920_CS(); } void ST7920_ncs() { ST7920_NCS(); } void ST7920_set_cmd() { ST7920_SET_CMD(); } void ST7920_set_dat() { ST7920_SET_DAT(); } void ST7920_write_byte(const uint8_t val) { ST7920_WRITE_BYTE(val); } #endif #endif // U8GLIB_ST7920 #endif // !U8G_HAL_LINKS && (__AVR__ || ARDUINO_ARCH_STM32 || ARDUINO_ARCH_ESP32)