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Implement GPIO abstraction for atsam (#13567)

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* Implement GPIO abstraction for atsam

* Convert Drop boards to normal matrix config

* Work round pin conflicts and matrix delay
This commit is contained in:
Joel Challis 2021-07-22 23:01:19 +01:00 committed by GitHub
parent 95a7c22824
commit 5d7f2823c9
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 255 additions and 174 deletions
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21
keyboards/massdrop/alt/alt.c Normal file
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@ -0,0 +1,21 @@
/*
Copyright 2021 Massdrop Inc.
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 2 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/>.
*/
#include "alt.h"
/* Temporary solution for matrix delay */
void matrix_output_select_delay(void) { matrix_io_delay(); }
void matrix_output_unselect_delay(void) { }

19
keyboards/massdrop/alt/config.h
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@ -32,18 +32,21 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define MATRIX_ROWS 5
#define MATRIX_COLS 15
#define MATRIX_ROW_PINS { A00, A01, A02, A03, A04 }
#define MATRIX_COL_PINS { B04, B05, B06, B07, B08, B09, B10, B11, B12, B13, A05, A06, A07, A10, A11 }
#define UNUSED_PINS
/* COL2ROW, ROW2COL */
#define DIODE_DIRECTION COL2ROW
/* Temporary solution for matrix delay */
#define IGNORE_ATOMIC_BLOCK
/* MCU Port name definitions */
#define PA 0
#define PB 1
/* Port and Pin definition of key row hardware configuration */
#define MATRIX_ROW_PORTS PA, PA, PA, PA, PA
#define MATRIX_ROW_PINS 0, 1, 2, 3, 4
/* Port and Pin definition of key column hardware configuration */
#define MATRIX_COL_PORTS PB, PB, PB, PB, PB, PB, PB, PB, PB, PB, PA, PA, PA, PA, PA
#define MATRIX_COL_PINS 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 5, 6, 7, 10, 11
/* This Shift Register expands available hardware output lines to control additional peripherals */
/* It uses four lines from the MCU to provide 16 output lines */
/* Shift Register Clock configuration (MCU to ShiftRegister.RCLK) */

76
keyboards/massdrop/alt/matrix.c
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@ -1,76 +0,0 @@
/*
Copyright 2018 Massdrop Inc.
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 2 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/>.
*/
#include "alt.h"
#include "d51_util.h"
const uint8_t row_ports[] = {MATRIX_ROW_PORTS};
const uint8_t row_pins[] = {MATRIX_ROW_PINS};
const uint8_t col_ports[] = {MATRIX_COL_PORTS};
const uint8_t col_pins[] = {MATRIX_COL_PINS};
uint32_t row_masks[2]; // NOTE: If more than PA PB used in the future, adjust code to accommodate
void matrix_init_custom(void) {
row_masks[PA] = 0;
row_masks[PB] = 0;
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
PORT->Group[row_ports[row]].DIRCLR.reg = 1 << row_pins[row]; // Input
PORT->Group[row_ports[row]].OUTCLR.reg = 1 << row_pins[row]; // Low
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.INEN = 1; // Input Enable,
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.PULLEN = 1; // Pull Enable
row_masks[row_ports[row]] |= 1 << row_pins[row]; // Add pin to proper row mask
}
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
PORT->Group[col_ports[col]].DIRSET.reg = 1 << col_pins[col]; // Output
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Low
}
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
matrix_row_t raw[MATRIX_ROWS] = {0};
uint32_t scans[2]; // PA PB
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
PORT->Group[col_ports[col]].OUTSET.reg = 1 << col_pins[col]; // Set col output
matrix_io_delay(); // Delay for output
scans[PA] = PORT->Group[PA].IN.reg & row_masks[PA]; // Read PA row pins data
scans[PB] = PORT->Group[PB].IN.reg & row_masks[PB]; // Read PB row pins data
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Clear col output
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
// Move scan bits from scans array into proper row bit locations
if (scans[row_ports[row]] & (1 << row_pins[row])) {
raw[row] |= 1 << col;
}
}
}
bool changed = false;
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
if (current_matrix[row] != raw[row]) {
current_matrix[row] = raw[row];
changed = true;
}
}
return changed;
}

3
keyboards/massdrop/alt/rules.mk
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@ -1,13 +1,10 @@
# project specific files
SRC = matrix.c
SRC += config_led.c
#For platform and packs
ARM_ATSAM = SAMD51J18A
MCU = cortex-m4
CUSTOM_MATRIX = lite
# Build Options
# comment out to disable the options.
#

18
keyboards/massdrop/ctrl/config.h
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@ -32,18 +32,20 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define MATRIX_ROWS 11
#define MATRIX_COLS 8
#define MATRIX_ROW_PINS { B04, B05, B06, B07, B08, B09, A10, A11, B10, B11, B12 }
#define MATRIX_COL_PINS { A00, A01, A02, A03, A04, A05, A06, A07 }
#define UNUSED_PINS
/* COL2ROW, ROW2COL */
#define DIODE_DIRECTION COL2ROW
/* Temporary solution for matrix delay */
#define IGNORE_ATOMIC_BLOCK
/* MCU Port name definitions */
#define PA 0
#define PB 1
/* Port and Pin definition of key row hardware configuration */
#define MATRIX_ROW_PORTS PB, PB, PB, PB, PB, PB, PA, PA, PB, PB, PB
#define MATRIX_ROW_PINS 4, 5, 6, 7, 8, 9, 10, 11, 10, 11, 12
/* Port and Pin definition of key column hardware configuration */
#define MATRIX_COL_PORTS PA, PA, PA, PA, PA, PA, PA, PA
#define MATRIX_COL_PINS 0, 1, 2, 3, 4, 5, 6, 7
/* This Shift Register expands available hardware output lines to control additional peripherals */
/* It uses four lines from the MCU to provide 16 output lines */
/* Shift Register Clock configuration (MCU to ShiftRegister.RCLK) */

21
keyboards/massdrop/ctrl/ctrl.c Normal file
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@ -0,0 +1,21 @@
/*
Copyright 2021 Massdrop Inc.
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 2 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/>.
*/
#include "ctrl.h"
/* Temporary solution for matrix delay */
void matrix_output_select_delay(void) { matrix_io_delay(); }
void matrix_output_unselect_delay(void) { }

76
keyboards/massdrop/ctrl/matrix.c
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@ -1,76 +0,0 @@
/*
Copyright 2018 Massdrop Inc.
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 2 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/>.
*/
#include "ctrl.h"
#include "d51_util.h"
const uint8_t row_ports[] = {MATRIX_ROW_PORTS};
const uint8_t row_pins[] = {MATRIX_ROW_PINS};
const uint8_t col_ports[] = {MATRIX_COL_PORTS};
const uint8_t col_pins[] = {MATRIX_COL_PINS};
uint32_t row_masks[2]; // NOTE: If more than PA PB used in the future, adjust code to accommodate
void matrix_init_custom(void) {
row_masks[PA] = 0;
row_masks[PB] = 0;
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
PORT->Group[row_ports[row]].DIRCLR.reg = 1 << row_pins[row]; // Input
PORT->Group[row_ports[row]].OUTCLR.reg = 1 << row_pins[row]; // Low
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.INEN = 1; // Input Enable,
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.PULLEN = 1; // Pull Enable
row_masks[row_ports[row]] |= 1 << row_pins[row]; // Add pin to proper row mask
}
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
PORT->Group[col_ports[col]].DIRSET.reg = 1 << col_pins[col]; // Output
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Low
}
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
matrix_row_t raw[MATRIX_ROWS] = {0};
uint32_t scans[2]; // PA PB
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
PORT->Group[col_ports[col]].OUTSET.reg = 1 << col_pins[col]; // Set col output
matrix_io_delay(); // Delay for output
scans[PA] = PORT->Group[PA].IN.reg & row_masks[PA]; // Read PA row pins data
scans[PB] = PORT->Group[PB].IN.reg & row_masks[PB]; // Read PB row pins data
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; // Clear col output
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
// Move scan bits from scans array into proper row bit locations
if (scans[row_ports[row]] & (1 << row_pins[row])) {
raw[row] |= 1 << col;
}
}
}
bool changed = false;
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
if (current_matrix[row] != raw[row]) {
current_matrix[row] = raw[row];
changed = true;
}
}
return changed;
}

3
keyboards/massdrop/ctrl/rules.mk
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@ -1,13 +1,10 @@
# project specific files
SRC = matrix.c
SRC += config_led.c
#For platform and packs
ARM_ATSAM = SAMD51J18A
MCU = cortex-m4
CUSTOM_MATRIX = lite
# Build Options
# comment out to disable the options.
#

37
tmk_core/common/arm_atsam/atomic_util.h Normal file
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@ -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 <http://www.gnu.org/licenses/>.
*/
#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)

71
tmk_core/common/arm_atsam/gpio.h Normal file
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/* 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 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))

84
tmk_core/common/arm_atsam/pin_defs.h Normal file
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@ -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 <http://www.gnu.org/licenses/>.
*/
#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