Initial commit. Unusable Marlin 2.0.5.3 core without any custimization.

2020-06-02 11:44:35 +02:00
commit 987c858ae4
1519 changed files with 1361431 additions and 0 deletions
--- a/Marlin/src/HAL/DUE/timers.cpp
+++ b/Marlin/src/HAL/DUE/timers.cpp
@@ -0,0 +1,136 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * 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/>.
+ *
+ */
+
+/**
+ * Description: HAL for Arduino Due and compatible (SAM3X8E)
+ *
+ * For ARDUINO_ARCH_SAM
+ */
+
+#ifdef ARDUINO_ARCH_SAM
+
+// ------------------------
+// Includes
+// ------------------------
+#include "../../inc/MarlinConfig.h"
+#include "HAL.h"
+
+#include "timers.h"
+
+// ------------------------
+// Local defines
+// ------------------------
+
+#define NUM_HARDWARE_TIMERS 9
+
+// ------------------------
+// Private Variables
+// ------------------------
+
+const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
+  { TC0, 0, TC0_IRQn,  3}, // 0 - [servo timer5]
+  { TC0, 1, TC1_IRQn,  0}, // 1
+  { TC0, 2, TC2_IRQn,  2}, // 2 - stepper
+  { TC1, 0, TC3_IRQn,  0}, // 3 - stepper for BOARD_ARCHIM1
+  { TC1, 1, TC4_IRQn, 15}, // 4 - temperature
+  { TC1, 2, TC5_IRQn,  3}, // 5 - [servo timer3]
+  { TC2, 0, TC6_IRQn, 14}, // 6 - tone
+  { TC2, 1, TC7_IRQn,  0}, // 7
+  { TC2, 2, TC8_IRQn,  0}, // 8
+};
+
+// ------------------------
+// Public functions
+// ------------------------
+
+/*
+  Timer_clock1: Prescaler 2 -> 42MHz
+  Timer_clock2: Prescaler 8 -> 10.5MHz
+  Timer_clock3: Prescaler 32 -> 2.625MHz
+  Timer_clock4: Prescaler 128 -> 656.25kHz
+*/
+
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
+  Tc *tc = TimerConfig[timer_num].pTimerRegs;
+  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  uint32_t channel = TimerConfig[timer_num].channel;
+
+  // Disable interrupt, just in case it was already enabled
+  NVIC_DisableIRQ(irq);
+
+  // We NEED memory barriers to ensure Interrupts are actually disabled!
+  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+  __DSB();
+  __ISB();
+
+  // Disable timer interrupt
+  tc->TC_CHANNEL[channel].TC_IDR = TC_IDR_CPCS;
+
+  // Stop timer, just in case, to be able to reconfigure it
+  TC_Stop(tc, channel);
+
+  pmc_set_writeprotect(false);
+  pmc_enable_periph_clk((uint32_t)irq);
+  NVIC_SetPriority(irq, TimerConfig [timer_num].priority);
+
+  // wave mode, reset counter on match with RC,
+  TC_Configure(tc, channel, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK1);
+
+  // Set compare value
+  TC_SetRC(tc, channel, VARIANT_MCK / 2 / frequency);
+
+  // And start timer
+  TC_Start(tc, channel);
+
+  // enable interrupt on RC compare
+  tc->TC_CHANNEL[channel].TC_IER = TC_IER_CPCS;
+
+  // Finally, enable IRQ
+  NVIC_EnableIRQ(irq);
+}
+
+void HAL_timer_enable_interrupt(const uint8_t timer_num) {
+  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  NVIC_EnableIRQ(irq);
+}
+
+void HAL_timer_disable_interrupt(const uint8_t timer_num) {
+  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  NVIC_DisableIRQ(irq);
+
+  // We NEED memory barriers to ensure Interrupts are actually disabled!
+  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+  __DSB();
+  __ISB();
+}
+
+// missing from CMSIS: Check if interrupt is enabled or not
+static bool NVIC_GetEnabledIRQ(IRQn_Type IRQn) {
+  return (NVIC->ISER[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F))) != 0;
+}
+
+bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
+  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  return NVIC_GetEnabledIRQ(irq);
+}
+
+#endif // ARDUINO_ARCH_SAM