Reorganize HAL (#14832)

2019-09-02 19:49:58 -05:00
parent cdd5056aba
commit 75efa3cdac
142 changed files with 547 additions and 422 deletions
--- a/Marlin/src/HAL/HAL_STM32/timers.cpp
+++ b/Marlin/src/HAL/HAL_STM32/timers.cpp
@@ -0,0 +1,93 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2019 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/>.
+ *
+ */
+
+#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
+
+#include "HAL.h"
+
+#include "timers.h"
+
+// ------------------------
+// Local defines
+// ------------------------
+
+#define NUM_HARDWARE_TIMERS 2
+
+// ------------------------
+// Private Variables
+// ------------------------
+
+stm32_timer_t TimerHandle[NUM_HARDWARE_TIMERS];
+
+// ------------------------
+// Public functions
+// ------------------------
+
+bool timers_initialized[NUM_HARDWARE_TIMERS] = { false };
+
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
+
+  if (!timers_initialized[timer_num]) {
+    uint32_t step_prescaler = STEPPER_TIMER_PRESCALE - 1,
+                       temp_prescaler = TEMP_TIMER_PRESCALE - 1;
+    switch (timer_num) {
+      case STEP_TIMER_NUM:
+        // STEPPER TIMER - use a 32bit timer if possible
+        TimerHandle[timer_num].timer = STEP_TIMER_DEV;
+        TimerHandle[timer_num].irqHandle = Step_Handler;
+        TimerHandleInit(&TimerHandle[timer_num], (((HAL_TIMER_RATE) / step_prescaler) / frequency) - 1, step_prescaler);
+        HAL_NVIC_SetPriority(STEP_TIMER_IRQ_NAME, STEP_TIMER_IRQ_PRIO, 0);
+        break;
+
+      case TEMP_TIMER_NUM:
+        // TEMP TIMER - any available 16bit Timer
+        TimerHandle[timer_num].timer = TEMP_TIMER_DEV;
+        TimerHandle[timer_num].irqHandle = Temp_Handler;
+        TimerHandleInit(&TimerHandle[timer_num], (((HAL_TIMER_RATE) / temp_prescaler) / frequency) - 1, temp_prescaler);
+        HAL_NVIC_SetPriority(TEMP_TIMER_IRQ_NAME, TEMP_TIMER_IRQ_PRIO, 0);
+        break;
+    }
+    timers_initialized[timer_num] = true;
+  }
+}
+
+void HAL_timer_enable_interrupt(const uint8_t timer_num) {
+  const IRQn_Type IRQ_Id = IRQn_Type(getTimerIrq(TimerHandle[timer_num].timer));
+  HAL_NVIC_EnableIRQ(IRQ_Id);
+}
+
+void HAL_timer_disable_interrupt(const uint8_t timer_num) {
+  const IRQn_Type IRQ_Id = IRQn_Type(getTimerIrq(TimerHandle[timer_num].timer));
+  HAL_NVIC_DisableIRQ(IRQ_Id);
+
+  // 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();
+}
+
+bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
+  const uint32_t IRQ_Id = getTimerIrq(TimerHandle[timer_num].timer);
+  return NVIC->ISER[IRQ_Id >> 5] & _BV32(IRQ_Id & 0x1F);
+}
+
+#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC