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keyboards/ryanskidmore: add rskeys100 keyboard (#15506)

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* keyboards/ryanskidmore/rskeys100: add rskeys100 draft firmware

* keyboards/ryanskidmore/rskeys100: fix firmware

* ryanskidmore/rskeys100: fix remaining bugs

* keyboards/ryanskidmore/rskeys100: finishing touches on firmware

* keyboards/ryanskidmore/rskeys100: migrate from full replacement matrix scanning to lite, move rgb matrix enable call to keymap

* keyboards/ryanskidmore/rskeys100: remove undefines, clarify comments

* ryanskidmore/rskeys100: remove unused imports

* keyboards/ryanskidmore/rskeys100: pr feedback
This commit is contained in:
Ryan Skidmore 2022-05-02 20:34:44 +01:00 • committed by GitHub
parent 8b668a24d6
commit 66fc18c756
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9 changed files with 479 additions and 0 deletions
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110
keyboards/ryanskidmore/rskeys100/matrix.c Normal file
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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
Modified by Ryan Skidmore <rskeys@ryanskidmore.co.uk> (@ryanskidmore)
to support the rskeys100.
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 <stdbool.h>
#include "matrix.h"
#include <util/delay.h>
#include "quantum.h"
static const uint32_t col_values[24] = SHR_COLS;
static uint8_t read_rows(void);
static void select_col(uint8_t col);
static void shift_pulse(void);
static void shift_out_single(uint8_t value);
static void shift_out(uint32_t value);
void matrix_init_custom(void) {
setPinInput(ROW_A);
setPinInput(ROW_B);
setPinInput(ROW_C);
setPinInput(ROW_D);
setPinInput(ROW_E);
setPinInput(ROW_F);
setPinOutput(SHR_DATA);
setPinOutput(SHR_LATCH);
setPinOutput(SHR_CLOCK);
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
bool changed = false;
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
select_col(col);
_delay_us(1);
uint8_t rows = read_rows();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
bool prev_bit = ((uint32_t)(current_matrix[row]) & (matrix_row_t)(1UL << col)) ? 1 : 0;
bool curr_bit = ((uint32_t)rows & (uint32_t)(1UL << row)) ? 1 : 0;
if (prev_bit != curr_bit) {
current_matrix[row] = (uint32_t)(current_matrix[row]) ^ (uint32_t)(1UL << col);
changed = true;
}
}
}
return changed;
}
static uint8_t read_rows(void) {
return (readPin(ROW_F) << 5)
| (readPin(ROW_E) << 4)
| (readPin(ROW_D) << 3)
| (readPin(ROW_C) << 2)
| (readPin(ROW_B) << 1)
| (readPin(ROW_A) );
}
static void select_col(uint8_t col) {
shift_out(col_values[col]);
}
static void shift_out(uint32_t value) {
writePinLow(SHR_LATCH);
uint8_t first_byte = (value >> 16) & 0xFF;
uint8_t second_byte = (value >> 8) & 0xFF;
uint8_t third_byte = (uint8_t)(value & 0xFF);
shift_out_single(first_byte);
shift_out_single(second_byte);
shift_out_single(third_byte);
writePinHigh(SHR_LATCH);
/* We delay here to prevent multiple consecutive keys being triggered with a single switch press */
_delay_us(10);
}
static void shift_out_single(uint8_t value) {
for (uint8_t i = 0; i < 8; i++) {
if (value & 0b10000000) {
writePinHigh(SHR_DATA);
} else {
writePinLow(SHR_DATA);
}
shift_pulse();
value = value << 1;
}
}
static inline void shift_pulse(void) {
writePinHigh(SHR_CLOCK);
writePinLow(SHR_CLOCK);
}