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authorGeorgiy Bondarenko <69736697+nehilo@users.noreply.github.com>2021-03-04 20:54:23 +0300
committerGeorgiy Bondarenko <69736697+nehilo@users.noreply.github.com>2021-03-04 20:54:23 +0300
commite8701195e66f2d27ffe17fb514eae8173795aaf7 (patch)
tree9f519c4abf6556b9ae7190a6210d87ead1dfadde /Marlin/src/HAL/SAMD51/timers.h
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+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * 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/>.
+ *
+ */
+#pragma once
+
+#include <stdint.h>
+
+// --------------------------------------------------------------------------
+// Defines
+// --------------------------------------------------------------------------
+#define RTC_TIMER_NUM 8 // This is not a TC but a RTC
+
+typedef uint32_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF
+
+#define HAL_TIMER_RATE F_CPU // frequency of timers peripherals
+
+#ifndef STEP_TIMER_NUM
+ #define STEP_TIMER_NUM 0 // Timer Index for Stepper
+#endif
+#ifndef PULSE_TIMER_NUM
+ #define PULSE_TIMER_NUM STEP_TIMER_NUM
+#endif
+#ifndef TEMP_TIMER_NUM
+ #define TEMP_TIMER_NUM RTC_TIMER_NUM // Timer Index for Temperature
+#endif
+
+#define TEMP_TIMER_FREQUENCY 1000 // temperature interrupt frequency
+
+#define STEPPER_TIMER_RATE HAL_TIMER_RATE // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000) // stepper timer ticks per µs
+#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
+
+#define PULSE_TIMER_RATE STEPPER_TIMER_RATE
+#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+
+#define TC_PRIORITY(t) t == SERVO_TC ? 1 \
+ : (t == STEP_TIMER_NUM || t == PULSE_TIMER_NUM) ? 2 \
+ : (t == TEMP_TIMER_NUM) ? 6 \
+ : 7
+
+#define _TC_HANDLER(t) void TC##t##_Handler()
+#define TC_HANDLER(t) _TC_HANDLER(t)
+#ifndef HAL_STEP_TIMER_ISR
+ #define HAL_STEP_TIMER_ISR() TC_HANDLER(STEP_TIMER_NUM)
+#endif
+#if STEP_TIMER_NUM != PULSE_TIMER_NUM
+ #define HAL_PULSE_TIMER_ISR() TC_HANDLER(PULSE_TIMER_NUM)
+#endif
+#if TEMP_TIMER_NUM == RTC_TIMER_NUM
+ #define HAL_TEMP_TIMER_ISR() void RTC_Handler()
+#else
+ #define HAL_TEMP_TIMER_ISR() TC_HANDLER(TEMP_TIMER_NUM)
+#endif
+
+// --------------------------------------------------------------------------
+// Types
+// --------------------------------------------------------------------------
+
+typedef struct {
+ union {
+ Tc *pTc;
+ Rtc *pRtc;
+ };
+ IRQn_Type IRQ_Id;
+ uint8_t priority;
+} tTimerConfig;
+
+// --------------------------------------------------------------------------
+// Public Variables
+// --------------------------------------------------------------------------
+
+extern const tTimerConfig TimerConfig[];
+
+// --------------------------------------------------------------------------
+// Public functions
+// --------------------------------------------------------------------------
+
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
+
+FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
+ // Should never be called with timer RTC_TIMER_NUM
+ Tc * const tc = TimerConfig[timer_num].pTc;
+ tc->COUNT32.CC[0].reg = compare;
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
+ // Should never be called with timer RTC_TIMER_NUM
+ Tc * const tc = TimerConfig[timer_num].pTc;
+ return (hal_timer_t)tc->COUNT32.CC[0].reg;
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
+ // Should never be called with timer RTC_TIMER_NUM
+ Tc * const tc = TimerConfig[timer_num].pTc;
+ tc->COUNT32.CTRLBSET.reg = TC_CTRLBCLR_CMD_READSYNC;
+ SYNC(tc->COUNT32.SYNCBUSY.bit.CTRLB || tc->COUNT32.SYNCBUSY.bit.COUNT);
+ return tc->COUNT32.COUNT.reg;
+}
+
+void HAL_timer_enable_interrupt(const uint8_t timer_num);
+void HAL_timer_disable_interrupt(const uint8_t timer_num);
+bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
+
+FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
+ if (timer_num == RTC_TIMER_NUM) {
+ Rtc * const rtc = TimerConfig[timer_num].pRtc;
+ // Clear interrupt flag
+ rtc->MODE0.INTFLAG.reg = RTC_MODE0_INTFLAG_CMP0;
+ }
+ else {
+ Tc * const tc = TimerConfig[timer_num].pTc;
+ // Clear interrupt flag
+ tc->COUNT32.INTFLAG.reg = TC_INTFLAG_OVF;
+ }
+}
+
+#define HAL_timer_isr_epilogue(timer_num)