- /* Copyright 2021 QMK
- *
- * 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 "samd51j18a.h"
-
- #include "pin_defs.h"
-
- typedef uint8_t pin_t;
-
- #define SAMD_PORT(pin) (((pin)&0x20) >> 5)
- #define SAMD_PIN(pin) ((pin)&0x1f)
- #define SAMD_PIN_MASK(pin) (1 << ((pin)&0x1f))
-
- #define setPinInput(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.INEN = 1; \
- PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \
- } while (0)
-
- #define setPinInputHigh(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \
- PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \
- PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.INEN = 1; \
- PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \
- } while (0)
-
- #define setPinInputLow(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \
- PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \
- PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.INEN = 1; \
- PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \
- } while (0)
-
- #define setPinOutputPushPull(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].DIRSET.reg = SAMD_PIN_MASK(pin); \
- PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \
- } while (0)
-
- #define setPinOutputOpenDrain(pin) _Static_assert(0, "arm_atsam platform does not implement an open-drain output")
-
- #define setPinOutput(pin) setPinOutputPushPull(pin)
-
- #define writePinHigh(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \
- } while (0)
-
- #define writePinLow(pin) \
- do { \
- PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \
- } while (0)
-
- #define writePin(pin, level) \
- do { \
- if (level) \
- PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \
- else \
- PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \
- } while (0)
-
- #define readPin(pin) ((PORT->Group[SAMD_PORT(pin)].IN.reg & SAMD_PIN_MASK(pin)) != 0)
-
- #define togglePin(pin) (PORT->Group[SAMD_PORT(pin)].OUTTGL.reg = SAMD_PIN_MASK(pin))
|