From e8701195e66f2d27ffe17fb514eae8173795aaf7 Mon Sep 17 00:00:00 2001
From: Georgiy Bondarenko <69736697+nehilo@users.noreply.github.com>
Date: Thu, 4 Mar 2021 22:54:23 +0500
Subject: Initial commit
---
.../HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp | 144 ++++++++++++++++
.../HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp | 185 +++++++++++++++++++++
Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp | 145 ++++++++++++++++
.../HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp | 112 +++++++++++++
.../HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h | 35 ++++
5 files changed, 621 insertions(+)
create mode 100644 Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
create mode 100644 Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
create mode 100644 Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
create mode 100644 Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
create mode 100644 Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
(limited to 'Marlin/src/HAL/DUE/dogm')
diff --git a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
new file mode 100644
index 0000000..d07da15
--- /dev/null
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
@@ -0,0 +1,144 @@
+/**
+ * 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 .
+ *
+ */
+
+
+/**
+ * Based on u8g_com_msp430_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2012, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __SAM3X8E__
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB
+
+#include
+
+#include "../../../MarlinCore.h"
+
+#ifndef LCD_SPI_SPEED
+ #define LCD_SPI_SPEED SPI_QUARTER_SPEED
+#endif
+
+#include "../../shared/HAL_SPI.h"
+#include "../fastio.h"
+
+void u8g_SetPIOutput_DUE_hw_spi(u8g_t *u8g, uint8_t pin_index) {
+ PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1,
+ g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
+}
+
+void u8g_SetPILevel_DUE_hw_spi(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
+ volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort;
+ uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin;
+ if (level) port->PIO_SODR = mask;
+ else port->PIO_CODR = mask;
+}
+
+uint8_t u8g_com_HAL_DUE_shared_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+ switch (msg) {
+ case U8G_COM_MSG_STOP:
+ break;
+
+ case U8G_COM_MSG_INIT:
+ u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_CS, 1);
+ u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_A0, 1);
+
+ u8g_SetPIOutput_DUE_hw_spi(u8g, U8G_PI_CS);
+ u8g_SetPIOutput_DUE_hw_spi(u8g, U8G_PI_A0);
+
+ 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) */
+ u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_A0, arg_val);
+ break;
+
+ case U8G_COM_MSG_CHIP_SELECT:
+ u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
+ break;
+
+ case U8G_COM_MSG_RESET:
+ 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;
+
+ case U8G_COM_MSG_WRITE_SEQ_P: {
+ uint8_t *ptr = (uint8_t*) arg_ptr;
+ while (arg_val > 0) {
+ spiSend(*ptr++);
+ arg_val--;
+ }
+ }
+ break;
+ }
+ return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB
+
+#endif // __SAM3X8E__
diff --git a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
new file mode 100644
index 0000000..7df180c
--- /dev/null
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
@@ -0,0 +1,185 @@
+/**
+ * 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 .
+ *
+ */
+
+/**
+ * Based on u8g_com_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(U8GLIB_ST7920)
+
+#include "../../shared/Delay.h"
+
+#include
+
+#include "u8g_com_HAL_DUE_sw_spi_shared.h"
+
+#define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_0
+
+static uint8_t rs_last_state = 255;
+
+static void u8g_com_DUE_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
+ if (rs != rs_last_state) { // time to send a command/data byte
+ rs_last_state = rs;
+ SPISEND_SW_DUE(rs ? 0x0FA : 0x0F8); // Command or Data
+ DELAY_US(40); // give the controller some time to process the data: 20 is bad, 30 is OK, 40 is safe
+ }
+ SPISEND_SW_DUE(val & 0xF0);
+ SPISEND_SW_DUE(val << 4);
+}
+
+uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+ switch (msg) {
+ case U8G_COM_MSG_INIT:
+ SCK_pPio = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].pPort;
+ SCK_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].ulPin;
+ MOSI_pPio = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].pPort;
+ MOSI_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].ulPin;
+
+ u8g_SetPILevel_DUE(u8g, U8G_PI_CS, 0);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_CS);
+ u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK);
+ u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI);
+
+ SCK_pPio->PIO_CODR = SCK_dwMask; //SCK low - needed at power up but not after reset
+ MOSI_pPio->PIO_CODR = MOSI_dwMask; //MOSI low - needed at power up but not after reset
+
+ u8g_Delay(5);
+
+ u8g->pin_list[U8G_PI_A0_STATE] = 0; /* initial RS state: command mode */
+ break;
+
+ case U8G_COM_MSG_STOP:
+ break;
+
+ case U8G_COM_MSG_RESET:
+ if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel_DUE(u8g, U8G_PI_RESET, arg_val);
+ break;
+
+ case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+ u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+ break;
+
+ case U8G_COM_MSG_CHIP_SELECT:
+ if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS])
+ u8g_SetPILevel_DUE(u8g, U8G_PI_CS, arg_val); //note: the st7920 has an active high chip select
+ break;
+
+ case U8G_COM_MSG_WRITE_BYTE:
+
+ u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
+ break;
+
+ case U8G_COM_MSG_WRITE_SEQ: {
+ uint8_t *ptr = (uint8_t*) arg_ptr;
+ while (arg_val > 0) {
+ u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+ arg_val--;
+ }
+ }
+ break;
+
+ case U8G_COM_MSG_WRITE_SEQ_P: {
+ uint8_t *ptr = (uint8_t*) arg_ptr;
+ while (arg_val > 0) {
+ u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+ arg_val--;
+ }
+ }
+ break;
+ }
+ return 1;
+}
+
+#if ENABLED(LIGHTWEIGHT_UI)
+ #include "../../../lcd/marlinui.h"
+ #include "../../shared/HAL_ST7920.h"
+
+ #define ST7920_CS_PIN LCD_PINS_RS
+
+ #if DOGM_SPI_DELAY_US > 0
+ #define U8G_DELAY() DELAY_US(DOGM_SPI_DELAY_US)
+ #else
+ #define U8G_DELAY() DELAY_US(10)
+ #endif
+
+ void ST7920_cs() {
+ WRITE(ST7920_CS_PIN, HIGH);
+ U8G_DELAY();
+ }
+
+ void ST7920_ncs() {
+ WRITE(ST7920_CS_PIN, LOW);
+ }
+
+ void ST7920_set_cmd() {
+ SPISEND_SW_DUE(0xF8);
+ DELAY_US(40);
+ }
+
+ void ST7920_set_dat() {
+ SPISEND_SW_DUE(0xFA);
+ DELAY_US(40);
+ }
+
+ void ST7920_write_byte(const uint8_t val) {
+ SPISEND_SW_DUE(val & 0xF0);
+ SPISEND_SW_DUE(val << 4);
+ }
+#endif // LIGHTWEIGHT_UI
+
+#endif // U8GLIB_ST7920
+#endif // ARDUINO_ARCH_SAM
diff --git a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
new file mode 100644
index 0000000..890546a
--- /dev/null
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
@@ -0,0 +1,145 @@
+/**
+ * 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 .
+ *
+ */
+
+/**
+ * Based on u8g_com_std_sw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2015, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB && DISABLED(U8GLIB_ST7920)
+
+#include "u8g_com_HAL_DUE_sw_spi_shared.h"
+
+#include "../../shared/Marduino.h"
+#include "../../shared/Delay.h"
+
+#include
+
+#if ENABLED(FYSETC_MINI_12864)
+ #define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_3
+#else
+ #define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_0
+#endif
+
+uint8_t u8g_com_HAL_DUE_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+ switch (msg) {
+ case U8G_COM_MSG_INIT:
+ SCK_pPio = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].pPort;
+ SCK_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].ulPin;
+ MOSI_pPio = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].pPort;
+ MOSI_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].ulPin;
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_CS);
+ u8g_SetPIOutput_DUE(u8g, U8G_PI_A0);
+ if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPIOutput_DUE(u8g, U8G_PI_RESET);
+ u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);
+ u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0);
+ break;
+
+ case U8G_COM_MSG_STOP:
+ break;
+
+ case U8G_COM_MSG_RESET:
+ if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel_DUE(u8g, U8G_PI_RESET, arg_val);
+ break;
+
+ case U8G_COM_MSG_CHIP_SELECT:
+ #if ENABLED(FYSETC_MINI_12864) // LCD SPI is running mode 3 while SD card is running mode 0
+ if (arg_val) { // SCK idle state needs to be set to the proper idle state before
+ // the next chip select goes active
+ u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 1); //set SCK to mode 3 idle state before CS goes active
+ u8g_SetPILevel_DUE(u8g, U8G_PI_CS, LOW);
+ }
+ else {
+ u8g_SetPILevel_DUE(u8g, U8G_PI_CS, HIGH);
+ u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0); //set SCK to mode 0 idle state after CS goes inactive
+ }
+ #else
+ u8g_SetPILevel_DUE(u8g, U8G_PI_CS, !arg_val);
+ #endif
+ break;
+
+ case U8G_COM_MSG_WRITE_BYTE:
+ SPISEND_SW_DUE(arg_val);
+ break;
+
+ case U8G_COM_MSG_WRITE_SEQ: {
+ uint8_t *ptr = (uint8_t *)arg_ptr;
+ while (arg_val > 0) {
+ SPISEND_SW_DUE(*ptr++);
+ arg_val--;
+ }
+ }
+ break;
+
+ case U8G_COM_MSG_WRITE_SEQ_P: {
+ uint8_t *ptr = (uint8_t *)arg_ptr;
+ while (arg_val > 0) {
+ SPISEND_SW_DUE(u8g_pgm_read(ptr));
+ ptr++;
+ arg_val--;
+ }
+ }
+ break;
+
+ case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+ u8g_SetPILevel_DUE(u8g, U8G_PI_A0, arg_val);
+ break;
+ }
+ return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB && !U8GLIB_ST7920
+#endif // ARDUINO_ARCH_SAM
diff --git a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
new file mode 100644
index 0000000..615a386
--- /dev/null
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
@@ -0,0 +1,112 @@
+/**
+ * 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 .
+ *
+ */
+
+/**
+ * Based on u8g_com_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB
+
+#include "../../shared/Delay.h"
+
+#include
+
+#include "u8g_com_HAL_DUE_sw_spi_shared.h"
+
+void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index) {
+ PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1,
+ g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
+}
+
+void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
+ volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort;
+ uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin;
+ if (level) port->PIO_SODR = mask; else port->PIO_CODR = mask;
+}
+
+Pio *SCK_pPio, *MOSI_pPio;
+uint32_t SCK_dwMask, MOSI_dwMask;
+
+void u8g_spiSend_sw_DUE_mode_0(uint8_t val) { // 3MHz
+ LOOP_L_N(i, 8) {
+ if (val & 0x80)
+ MOSI_pPio->PIO_SODR = MOSI_dwMask;
+ else
+ MOSI_pPio->PIO_CODR = MOSI_dwMask;
+ DELAY_NS(48);
+ SCK_pPio->PIO_SODR = SCK_dwMask;
+ DELAY_NS(905);
+ val <<= 1;
+ SCK_pPio->PIO_CODR = SCK_dwMask;
+ }
+}
+
+void u8g_spiSend_sw_DUE_mode_3(uint8_t val) { // 3.5MHz
+ LOOP_L_N(i, 8) {
+ SCK_pPio->PIO_CODR = SCK_dwMask;
+ DELAY_NS(50);
+ if (val & 0x80)
+ MOSI_pPio->PIO_SODR = MOSI_dwMask;
+ else
+ MOSI_pPio->PIO_CODR = MOSI_dwMask;
+ val <<= 1;
+ DELAY_NS(10);
+ SCK_pPio->PIO_SODR = SCK_dwMask;
+ DELAY_NS(70);
+ }
+}
+
+#endif // HAS_MARLINUI_U8GLIB
+#endif // ARDUINO_ARCH_SAM
diff --git a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
new file mode 100644
index 0000000..f076c50
--- /dev/null
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
@@ -0,0 +1,35 @@
+/**
+ * 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 .
+ *
+ */
+#pragma once
+
+#include "../../../inc/MarlinConfigPre.h"
+#include "../../shared/Marduino.h"
+#include
+
+void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index);
+void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level);
+
+void u8g_spiSend_sw_DUE_mode_0(uint8_t val);
+void u8g_spiSend_sw_DUE_mode_3(uint8_t val);
+
+extern Pio *SCK_pPio, *MOSI_pPio;
+extern uint32_t SCK_dwMask, MOSI_dwMask;
--
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