217 lines
10 KiB
C
217 lines
10 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* SAMD21 HAL developed by Bart Meijer (brupje)
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* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
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*/
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/**
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* Fast IO functions for SAMD21
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*/
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#include "SAMD21.h"
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/**
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* Utility functions
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*/
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#ifndef MASK
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#define MASK(PIN) _BV(PIN)
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#endif
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/**
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* Magic I/O routines
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*
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* Now you can simply SET_OUTPUT(IO); WRITE(IO, HIGH); WRITE(IO, LOW);
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*/
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// Read a pin
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#define READ(IO) ((PORT->Group[(EPortType)GET_SAMD_PORT(IO)].IN.reg & MASK(GET_SAMD_PIN(IO))) != 0)
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// Write to a pin
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#define WRITE(IO,V) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t mask = MASK(GET_SAMD_PIN(IO)); \
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\
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if (V) PORT->Group[port].OUTSET.reg = mask; \
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else PORT->Group[port].OUTCLR.reg = mask; \
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}while(0)
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// Toggle a pin
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#define TOGGLE(IO) PORT->Group[(EPortType)GET_SAMD_PORT(IO)].OUTTGL.reg = MASK(GET_SAMD_PIN(IO));
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// Set pin as input
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#define SET_INPUT(IO) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t pin = GET_SAMD_PIN(IO); \
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\
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PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN); \
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PORT->Group[port].DIRCLR.reg = MASK(pin); \
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}while(0)
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// Set pin as input with pullup
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#define SET_INPUT_PULLUP(IO) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t pin = GET_SAMD_PIN(IO); \
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const uint32_t mask = MASK(pin); \
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\
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PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN | PORT_PINCFG_PULLEN); \
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PORT->Group[port].DIRCLR.reg = mask; \
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PORT->Group[port].OUTSET.reg = mask; \
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}while(0)
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// Set pin as input with pulldown
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#define SET_INPUT_PULLDOWN(IO) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t pin = GET_SAMD_PIN(IO); \
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const uint32_t mask = MASK(pin); \
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\
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PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN | PORT_PINCFG_PULLEN); \
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PORT->Group[port].DIRCLR.reg = mask; \
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PORT->Group[port].OUTCLR.reg = mask; \
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}while(0)
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// Set pin as output (push pull)
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#define SET_OUTPUT(IO) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t pin = GET_SAMD_PIN(IO); \
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\
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PORT->Group[port].DIRSET.reg = MASK(pin); \
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PORT->Group[port].PINCFG[pin].reg = 0; \
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}while(0)
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// Set pin as output (open drain)
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#define SET_OUTPUT_OD(IO) do{ \
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const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
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const uint32_t pin = GET_SAMD_PIN(IO); \
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\
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PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_PULLEN); \
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PORT->Group[port].DIRCLR.reg = MASK(pin); \
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}while(0)
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// Set pin as PWM (push pull)
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#define SET_PWM SET_OUTPUT
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// Set pin as PWM (open drain)
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#define SET_PWM_OD SET_OUTPUT_OD
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// check if pin is an output
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#define IS_OUTPUT(IO) ((PORT->Group[(EPortType)GET_SAMD_PORT(IO)].DIR.reg & MASK(GET_SAMD_PIN(IO))) \
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|| (PORT->Group[(EPortType)GET_SAMD_PORT(IO)].PINCFG[GET_SAMD_PIN(IO)].reg & (PORT_PINCFG_INEN | PORT_PINCFG_PULLEN)) == PORT_PINCFG_PULLEN)
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// check if pin is an input
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#define IS_INPUT(IO) !IS_OUTPUT(IO)
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// Shorthand
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#define OUT_WRITE(IO,V) do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
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#define OUT_WRITE_OD(IO,V) do{ SET_OUTPUT_OD(IO); WRITE(IO,V); }while(0)
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// digitalRead/Write wrappers
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#define extDigitalRead(IO) digitalRead(IO)
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#define extDigitalWrite(IO,V) digitalWrite(IO,V)
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/**
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* Ports and functions
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* Added as necessary or if I feel like it- not a comprehensive list!
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*/
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/*
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* Some of these share the same source and so can't be used in the same time
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*/
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#define PWM_PIN(P) (WITHIN(P, 2, 13) || WITHIN(P, 22, 23) || WITHIN(P, 44, 45) || P == 48)
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// Return fulfilled ADCx->INPUTCTRL.reg
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#define PIN_TO_INPUTCTRL(P) ( (P == 0) ? ADC_INPUTCTRL_MUXPOS_PIN0 \
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: ((P) == 1) ? ADC_INPUTCTRL_MUXPOS_PIN1 \
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: ((P) == 2) ? ADC_INPUTCTRL_MUXPOS_PIN3 \
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: ((P) == 3) ? ADC_INPUTCTRL_MUXPOS_PIN4 \
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: ((P) == 4) ? ADC_INPUTCTRL_MUXPOS_PIN5 \
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: ((P) == 5) ? ADC_INPUTCTRL_MUXPOS_PIN5 \
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: ((P) == 6) ? ADC_INPUTCTRL_MUXPOS_PIN6 \
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: ((P) == 7) ? ADC_INPUTCTRL_MUXPOS_PIN7 \
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: ((P) == 8) ? ADC_INPUTCTRL_MUXPOS_PIN8 \
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: ((P) == 9) ? ADC_INPUTCTRL_MUXPOS_PIN9 \
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: ((P) == 10) ? ADC_INPUTCTRL_MUXPOS_PIN10 \
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: ((P) == 11) ? ADC_INPUTCTRL_MUXPOS_PIN11 \
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: ((P) == 12) ? ADC_INPUTCTRL_MUXPOS_PIN12 \
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: ((P) == 13) ? ADC_INPUTCTRL_MUXPOS_PIN13 \
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: ((P) == 14) ? ADC_INPUTCTRL_MUXPOS_PIN14 \
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: ADC_INPUTCTRL_MUXPOS_PIN15)
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#define digitalPinToAnalogInput(P) (WITHIN(P, 67, 74) ? (P) - 67 : WITHIN(P, 54, 61) ? 8 + (P) - 54 : WITHIN(P, 12, 13) ? 16 + (P) - 12 : P == 9 ? 18 : -1)
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/**
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* pins
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*/
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// PORTA
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#define DIO28_PIN PIN_PA02 // A0
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#define DIO56_PIN PIN_PA03 // A13
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#define DIO31_PIN PIN_PA04 // A13
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#define DIO32_PIN PIN_PA05 // A1
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#define DIO8_PIN PIN_PA06 // A14
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#define DIO9_PIN PIN_PA07 // A15
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#define DIO4_PIN PIN_PA08 // A15
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#define DIO3_PIN PIN_PA09 // A15
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#define DIO1_PIN PIN_PA10
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#define DIO0_PIN PIN_PA11
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#define DIO18_PIN PIN_PA12
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#define DIO52_PIN PIN_PA13
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#define DIO2_PIN PIN_PA14
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#define DIO5_PIN PIN_PA15
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#define DIO11_PIN PIN_PA16
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#define DIO13_PIN PIN_PA17
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#define DIO10_PIN PIN_PA18
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#define DIO12_PIN PIN_PA19
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#define DIO6_PIN PIN_PA20
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#define DIO07_PIN PIN_PA21
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#define DIO34_PIN PIN_PA22
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#define DIO35_PIN PIN_PA23
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#define DIO42_PIN PIN_PA24
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#define DIO43_PIN PIN_PA25
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#define DIO40_PIN PIN_PA27
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#define DIO26_PIN PIN_PB00
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#define DIO27_PIN PIN_PB01 // A0
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#define DIO33_PIN PIN_PB02
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#define DIO39_PIN PIN_PB03
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#define DIO14_PIN PIN_PB04
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#define DIO15_PIN PIN_PB05
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#define DIO16_PIN PIN_PB06
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#define DIO17_PIN PIN_PB07
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#define DIO29_PIN PIN_PB08
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#define DIO30_PIN PIN_PB09
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#define DIO37_PIN PIN_PB10
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#define DIO38_PIN PIN_PB11
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#define DIO36_PIN PIN_PB12
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#define DIO19_PIN PIN_PB13
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#define DIO20_PIN PIN_PB14
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#define DIO21_PIN PIN_PB15
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#define DIO22_PIN PIN_PB16
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#define DIO23_PIN PIN_PB17
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#define DIO44_PIN PIN_PB22
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#define DIO45_PIN PIN_PB23
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#define DIO24_PIN PIN_PB30
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#define DIO25_PIN PIN_PB31
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#define DIO53_PIN PIN_PA21
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#define DIO54_PIN PIN_PA06
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#define DIO55_PIN PIN_PA07
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