diff --git a/Marlin/src/HAL/ESP32/u8g_esp32_spi.cpp b/Marlin/src/HAL/ESP32/u8g_esp32_spi.cpp new file mode 100644 index 000000000000..e454130d43f3 --- /dev/null +++ b/Marlin/src/HAL/ESP32/u8g_esp32_spi.cpp @@ -0,0 +1,99 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm + * + * Copypaste of SAMD51 HAL developed by Giuliano Zaro (AKA GMagician) + * + * 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 . + * + */ +#ifdef ARDUINO_ARCH_ESP32 + +#include "../../inc/MarlinConfigPre.h" + +#if ENABLED(FYSETC_MINI_12864_2_1) + +#include +#include "Arduino.h" +#include "../shared/HAL_SPI.h" +#include "SPI.h" + +static SPISettings spiConfig; + +#define MDOGLCD_MOSI 23 +#define MDOGLCD_SCK 18 +#define MLCD_RESET_PIN 0 +#define MLCD_PINS_DC 4 +#define MDOGLCD_CS 21 +#define MDOGLCD_A0 4 + +#ifndef LCD_SPI_SPEED + #ifdef SD_SPI_SPEED + #define LCD_SPI_SPEED SD_SPI_SPEED // Assume SPI speed shared with SD + #else + #define LCD_SPI_SPEED SPI_FULL_SPEED // Use full speed if SD speed is not supplied + #endif +#endif + +uint8_t u8g_eps_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) { + static uint8_t msgInitCount = 2; // Ignore all messages until 2nd U8G_COM_MSG_INIT + if (msgInitCount) { + if (msg == U8G_COM_MSG_INIT) msgInitCount--; + if (msgInitCount) return -1; + } + + switch (msg) { + case U8G_COM_MSG_STOP: break; + + case U8G_COM_MSG_INIT: + OUT_WRITE(MDOGLCD_CS, HIGH); + OUT_WRITE(MDOGLCD_A0, HIGH); + OUT_WRITE(MLCD_RESET_PIN, HIGH); + u8g_Delay(5); + spiBegin(); + spiInit(LCD_SPI_SPEED); + break; + + case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */ + WRITE(MDOGLCD_A0, arg_val ? HIGH : LOW); + break; + + case U8G_COM_MSG_CHIP_SELECT: /* arg_val == 0 means HIGH level of U8G_PI_CS */ + WRITE(MDOGLCD_CS, arg_val ? LOW : HIGH); + break; + + case U8G_COM_MSG_RESET: + WRITE(MLCD_RESET_PIN, arg_val); + break; + + case U8G_COM_MSG_WRITE_BYTE: + spiSend((uint8_t)arg_val); + break; + + case U8G_COM_MSG_WRITE_SEQ: + uint8_t *ptr = (uint8_t*) arg_ptr; + while (arg_val > 0) { + spiSend(*ptr++); + arg_val--; + } + break; + } + return 1; +} + +#endif // FYSETC_MINI_12864_2_1 +#endif // ARDUINO_ARCH_ESP32 diff --git a/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h b/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h index a30dd4ca17f3..e5c6524a9ec4 100644 --- a/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h +++ b/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h @@ -57,6 +57,11 @@ #define U8G_COM_HAL_SW_SPI_FN u8g_com_std_sw_spi_fn #define U8G_COM_HAL_HW_SPI_FN u8g_com_stm32duino_hw_spi_fn + #elif defined(ESP32) + + uint8_t u8g_eps_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr); + #define U8G_COM_HAL_HW_SPI_FN u8g_eps_hw_spi_fn + #elif defined(__AVR__) uint8_t u8g_com_HAL_AVR_sw_sp_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);