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- /**
- * 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 <https://www.gnu.org/licenses/>.
- *
- */
- #pragma once
-
- /**
- * HAL Timers for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
- */
-
- #include <stdint.h>
-
- // ------------------------
- // Defines
- // ------------------------
-
- #define FORCE_INLINE __attribute__((always_inline)) inline
-
- typedef uint32_t hal_timer_t;
- #define HAL_TIMER_TYPE_MAX 0xFFFFFFFE
-
- #define GPT_TIMER_RATE F_BUS_ACTUAL // 150MHz
-
- #define GPT1_TIMER_PRESCALE 2
- #define GPT2_TIMER_PRESCALE 10
-
- #define GPT1_TIMER_RATE (GPT_TIMER_RATE / GPT1_TIMER_PRESCALE) // 75MHz
- #define GPT2_TIMER_RATE (GPT_TIMER_RATE / GPT2_TIMER_PRESCALE) // 15MHz
-
- #ifndef MF_TIMER_STEP
- #define MF_TIMER_STEP 0 // Timer Index for Stepper
- #endif
- #ifndef MF_TIMER_PULSE
- #define MF_TIMER_PULSE MF_TIMER_STEP
- #endif
- #ifndef MF_TIMER_TEMP
- #define MF_TIMER_TEMP 1 // Timer Index for Temperature
- #endif
-
- #define TEMP_TIMER_RATE 1000000
- #define TEMP_TIMER_FREQUENCY 1000
-
- #define STEPPER_TIMER_RATE GPT1_TIMER_RATE
- #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)
- #define STEPPER_TIMER_PRESCALE ((GPT_TIMER_RATE / 1000000) / STEPPER_TIMER_TICKS_PER_US)
-
- #define PULSE_TIMER_RATE STEPPER_TIMER_RATE // frequency of pulse timer
- #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(MF_TIMER_STEP)
- #define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
- #define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
-
- #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
- #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
-
- #ifndef HAL_STEP_TIMER_ISR
- #define HAL_STEP_TIMER_ISR() extern "C" void stepTC_Handler() // GPT1_Handler()
- #endif
- #ifndef HAL_TEMP_TIMER_ISR
- #define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler() // GPT2_Handler()
- #endif
-
- extern "C" {
- void stepTC_Handler();
- void tempTC_Handler();
- }
-
- 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) {
- switch (timer_num) {
- case MF_TIMER_STEP: GPT1_OCR1 = compare - 1; break;
- case MF_TIMER_TEMP: GPT2_OCR1 = compare - 1; break;
- }
- }
-
- FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
- switch (timer_num) {
- case MF_TIMER_STEP: return GPT1_OCR1;
- case MF_TIMER_TEMP: return GPT2_OCR1;
- }
- return 0;
- }
-
- FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
- switch (timer_num) {
- case MF_TIMER_STEP: return GPT1_CNT;
- case MF_TIMER_TEMP: return GPT2_CNT;
- }
- return 0;
- }
-
- 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);
-
- void HAL_timer_isr_prologue(const uint8_t timer_num);
- //void HAL_timer_isr_epilogue(const uint8_t timer_num) {}
- #define HAL_timer_isr_epilogue(T) NOOP
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