From 5d7f2823c947264d3ff3bb4f057f8e050d6b4af1 Mon Sep 17 00:00:00 2001 From: Joel Challis Date: Thu, 22 Jul 2021 23:01:19 +0100 Subject: Implement GPIO abstraction for atsam (#13567) * Implement GPIO abstraction for atsam * Convert Drop boards to normal matrix config * Work round pin conflicts and matrix delay --- tmk_core/common/arm_atsam/atomic_util.h | 37 +++++++++++++++ tmk_core/common/arm_atsam/gpio.h | 71 ++++++++++++++++++++++++++++ tmk_core/common/arm_atsam/pin_defs.h | 84 +++++++++++++++++++++++++++++++++ 3 files changed, 192 insertions(+) create mode 100644 tmk_core/common/arm_atsam/atomic_util.h create mode 100644 tmk_core/common/arm_atsam/gpio.h create mode 100644 tmk_core/common/arm_atsam/pin_defs.h (limited to 'tmk_core') diff --git a/tmk_core/common/arm_atsam/atomic_util.h b/tmk_core/common/arm_atsam/atomic_util.h new file mode 100644 index 0000000000..848542d23a --- /dev/null +++ b/tmk_core/common/arm_atsam/atomic_util.h @@ -0,0 +1,37 @@ +/* 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 . + */ +#pragma once + +#include "samd51j18a.h" + +static __inline__ uint8_t __interrupt_disable__(void) { + __disable_irq(); + + return 1; +} + +static __inline__ void __interrupt_enable__(const uint8_t *__s) { + __enable_irq(); + + __asm__ volatile("" ::: "memory"); + (void)__s; +} + +#define ATOMIC_BLOCK(type) for (type, __ToDo = __interrupt_disable__(); __ToDo; __ToDo = 0) +#define ATOMIC_FORCEON uint8_t sreg_save __attribute__((__cleanup__(__interrupt_enable__))) = 0 + +#define ATOMIC_BLOCK_RESTORESTATE _Static_assert(0, "ATOMIC_BLOCK_RESTORESTATE not implemented") +#define ATOMIC_BLOCK_FORCEON ATOMIC_BLOCK(ATOMIC_FORCEON) diff --git a/tmk_core/common/arm_atsam/gpio.h b/tmk_core/common/arm_atsam/gpio.h new file mode 100644 index 0000000000..c2d5a30889 --- /dev/null +++ b/tmk_core/common/arm_atsam/gpio.h @@ -0,0 +1,71 @@ +/* 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 . + */ +#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 setPinOutput(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 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) ((level) ? (writePinHigh(pin)) : (writePinLow(pin))) + +#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)) diff --git a/tmk_core/common/arm_atsam/pin_defs.h b/tmk_core/common/arm_atsam/pin_defs.h new file mode 100644 index 0000000000..5b50b23910 --- /dev/null +++ b/tmk_core/common/arm_atsam/pin_defs.h @@ -0,0 +1,84 @@ +/* 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 . + */ +#pragma once + +#include "samd51j18a.h" + +#define A00 PIN_PA00 +#define A01 PIN_PA01 +#define A02 PIN_PA02 +#define A03 PIN_PA03 +#define A04 PIN_PA04 +#define A05 PIN_PA05 +#define A06 PIN_PA06 +#define A07 PIN_PA07 +#define A08 PIN_PA08 +#define A09 PIN_PA09 +#define A10 PIN_PA10 +#define A11 PIN_PA11 +#define A12 PIN_PA12 +#define A13 PIN_PA13 +#define A14 PIN_PA14 +#define A15 PIN_PA15 +#define A16 PIN_PA16 +#define A17 PIN_PA17 +#define A18 PIN_PA18 +#define A19 PIN_PA19 +#define A20 PIN_PA20 +#define A21 PIN_PA21 +#define A22 PIN_PA22 +#define A23 PIN_PA23 +#define A24 PIN_PA24 +#define A25 PIN_PA25 +#define A26 PIN_PA26 +#define A27 PIN_PA27 +#define A28 PIN_PA28 +#define A29 PIN_PA29 +#define A30 PIN_PA30 +#define A31 PIN_PA31 + +#define B00 PIN_PB00 +#define B01 PIN_PB01 +#define B02 PIN_PB02 +#define B03 PIN_PB03 +#define B04 PIN_PB04 +#define B05 PIN_PB05 +#define B06 PIN_PB06 +#define B07 PIN_PB07 +#define B08 PIN_PB08 +#define B09 PIN_PB09 +#define B10 PIN_PB10 +#define B11 PIN_PB11 +#define B12 PIN_PB12 +#define B13 PIN_PB13 +#define B14 PIN_PB14 +#define B15 PIN_PB15 +#define B16 PIN_PB16 +#define B17 PIN_PB17 +#define B18 PIN_PB18 +#define B19 PIN_PB19 +#define B20 PIN_PB20 +#define B21 PIN_PB21 +#define B22 PIN_PB22 +#define B23 PIN_PB23 +#define B24 PIN_PB24 +#define B25 PIN_PB25 +#define B26 PIN_PB26 +#define B27 PIN_PB27 +#define B28 PIN_PB28 +#define B29 PIN_PB29 +#define B30 PIN_PB30 +#define B31 PIN_PB31 -- cgit v1.2.3