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- /**
- * 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 <https://www.gnu.org/licenses/>.
- *
- */
- #ifdef ARDUINO_ARCH_ESP32
-
- #include "../../inc/MarlinConfig.h"
-
- #if EITHER(MKS_MINI_12864, FYSETC_MINI_12864_2_1)
-
- #include <U8glib-HAL.h>
- #include "../shared/HAL_SPI.h"
- #include "HAL.h"
- #include "SPI.h"
-
- #if ENABLED(SDSUPPORT)
- #include "../../sd/cardreader.h"
- #if ENABLED(ESP3D_WIFISUPPORT)
- #include "sd_ESP32.h"
- #endif
- #endif
-
- static SPISettings spiConfig;
-
-
- #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 ENABLED(PAUSE_LCD_FOR_BUSY_SD)
- if (card.flag.saving || card.flag.logging || TERN0(ESP3D_WIFISUPPORT, sd_busy_lock == true)) return 0;
- #endif
-
- 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(DOGLCD_CS, HIGH);
- OUT_WRITE(DOGLCD_A0, HIGH);
- OUT_WRITE(LCD_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(DOGLCD_A0, arg_val ? HIGH : LOW);
- break;
-
- case U8G_COM_MSG_CHIP_SELECT: /* arg_val == 0 means HIGH level of U8G_PI_CS */
- WRITE(DOGLCD_CS, arg_val ? LOW : HIGH);
- break;
-
- case U8G_COM_MSG_RESET:
- WRITE(LCD_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 // EITHER(MKS_MINI_12864, FYSETC_MINI_12864_2_1)
-
- #endif // ARDUINO_ARCH_ESP32
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