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- /**
- * Marlin 3D Printer Firmware
- *
- * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2017 Victor Perez
- *
- * 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/>.
- *
- */
- #pragma once
-
- #include <stdint.h>
- #include "../../inc/MarlinConfig.h"
-
- // ------------------------
- // Defines
- // ------------------------
-
- #define FORCE_INLINE __attribute__((always_inline)) inline
-
- #define hal_timer_t uint32_t
- #define HAL_TIMER_TYPE_MAX 0xFFFFFFFF // Timers can be 16 or 32 bit
-
- #ifdef STM32F0xx
-
- #define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals
-
- #ifndef STEP_TIMER
- #define STEP_TIMER 16
- #endif
-
- #ifndef TEMP_TIMER
- #define TEMP_TIMER 17
- #endif
-
- #elif defined(STM32F1xx)
-
- #define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals
-
- #ifndef STEP_TIMER
- #define STEP_TIMER 4
- #endif
-
- #ifndef TEMP_TIMER
- #define TEMP_TIMER 2
- #endif
-
- #elif defined(STM32F4xx) || defined(STM32F7xx)
-
- #define HAL_TIMER_RATE (F_CPU/2) // frequency of timer peripherals
-
- // STM32F401 only has timers 1-5 & 9-11 with timers 4 & 5 usually assigned to TIMER_SERVO and TIMER_TONE
-
- #ifndef STEP_TIMER
- #define STEP_TIMER 9
- #endif
-
- #ifndef TEMP_TIMER
- #define TEMP_TIMER 10
- #endif
-
- #endif
-
- #ifndef SWSERIAL_TIMER_IRQ_PRIO
- #define SWSERIAL_TIMER_IRQ_PRIO 1
- #endif
-
- #ifndef STEP_TIMER_IRQ_PRIO
- #define STEP_TIMER_IRQ_PRIO 2
- #endif
-
- #ifndef TEMP_TIMER_IRQ_PRIO
- #define TEMP_TIMER_IRQ_PRIO 14 //14 = after hardware ISRs
- #endif
-
- #define STEP_TIMER_NUM 0 // index of timer to use for stepper
- #define TEMP_TIMER_NUM 1 // index of timer to use for temperature
- #define PULSE_TIMER_NUM STEP_TIMER_NUM
-
- #define TEMP_TIMER_FREQUENCY 1000 //Temperature::isr() is expected to be called at around 1kHz
-
- //TODO: get rid of manual rate/prescale/ticks/cycles taken for procedures in stepper.cpp
- #define STEPPER_TIMER_RATE 2000000 // 2 Mhz
- #define STEPPER_TIMER_PRESCALE ((HAL_TIMER_RATE)/(STEPPER_TIMER_RATE))
- #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
-
- #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 __TIMER_IRQ_NAME(X) TIM##X##_IRQn
- #define _TIMER_IRQ_NAME(X) __TIMER_IRQ_NAME(X)
-
- #define STEP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(STEP_TIMER)
- #define TEMP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(TEMP_TIMER)
-
- #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)
-
- extern void Step_Handler(HardwareTimer *htim);
- extern void Temp_Handler(HardwareTimer *htim);
- #define HAL_STEP_TIMER_ISR() void Step_Handler(HardwareTimer *htim)
- #define HAL_TEMP_TIMER_ISR() void Temp_Handler(HardwareTimer *htim)
-
- // ------------------------
- // Public Variables
- // ------------------------
-
- extern HardwareTimer *timer_instance[];
-
- // ------------------------
- // Public functions
- // ------------------------
-
- void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
- 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);
-
- //TIM_TypeDef* HAL_timer_device(const uint8_t timer_num); no need to be public for now. not public = not used externally
-
- // FORCE_INLINE because these are used in performance-critical situations
- FORCE_INLINE bool HAL_timer_initialized(const uint8_t timer_num) {
- return timer_instance[timer_num] != NULL;
- }
- FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
- return HAL_timer_initialized(timer_num) ? timer_instance[timer_num]->getCount() : 0;
- }
-
- // NOTE: Method name may be misleading.
- // STM32 has an Auto-Reload Register (ARR) as opposed to a "compare" register
- FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t overflow) {
- if (HAL_timer_initialized(timer_num)) {
- timer_instance[timer_num]->setOverflow(overflow + 1, TICK_FORMAT); // Value decremented by setOverflow()
- // wiki: "force all registers (Autoreload, prescaler, compare) to be taken into account"
- // So, if the new overflow value is less than the count it will trigger a rollover interrupt.
- if (overflow < timer_instance[timer_num]->getCount()) // Added 'if' here because reports say it won't boot without it
- timer_instance[timer_num]->refresh();
- }
- }
-
- #define HAL_timer_isr_prologue(TIMER_NUM)
- #define HAL_timer_isr_epilogue(TIMER_NUM)
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