diff options
author | Duncan Sutherland <dunk2k_2000@hotmail.com> | 2024-01-13 06:44:44 +0000 |
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committer | GitHub <noreply@github.com> | 2024-01-12 22:44:44 -0800 |
commit | b1ea30ca7c4f343e595c5c53fe69b768ee0a6103 (patch) | |
tree | 72bc3aeadb5029c607d8e3b57d105d28a610734a /keyboards/redox/wireless/matrix.c | |
parent | ceea0d72c189851793ffe56582831588bf2523f8 (diff) |
Move `redox_w` into `redox` (#21448)
Co-authored-by: Ryan <fauxpark@gmail.com>
Diffstat (limited to 'keyboards/redox/wireless/matrix.c')
-rw-r--r-- | keyboards/redox/wireless/matrix.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/keyboards/redox/wireless/matrix.c b/keyboards/redox/wireless/matrix.c new file mode 100644 index 0000000000..9c50c9cece --- /dev/null +++ b/keyboards/redox/wireless/matrix.c @@ -0,0 +1,70 @@ +/* Copyright 2017 Mattia Dal Ben + * + * 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 "quantum.h" +#include "matrix.h" +#include "uart.h" + +#define UART_MATRIX_RESPONSE_TIMEOUT 10000 + +void matrix_init_custom(void) { + uart_init(1000000); +} + +bool matrix_scan_custom(matrix_row_t current_matrix[]) { + uint32_t timeout = 0; + bool changed = false; + + //the s character requests the RF slave to send the matrix + uart_write('s'); + + //trust the external keystates entirely, erase the last data + uint8_t uart_data[11] = {0}; + + //there are 10 bytes corresponding to 10 columns, and then an end byte + for (uint8_t i = 0; i < 11; i++) { + //wait for the serial data, timeout if it's been too long + //this only happened in testing with a loose wire, but does no + //harm to leave it in here + while (!uart_available()) { + timeout++; + if (timeout > UART_MATRIX_RESPONSE_TIMEOUT) { + break; + } + } + + if (timeout < UART_MATRIX_RESPONSE_TIMEOUT) { + uart_data[i] = uart_read(); + } else { + uart_data[i] = 0x00; + } + } + + //check for the end packet, the key state bytes use the LSBs, so 0xE0 + //will only show up here if the correct bytes were recieved + if (uart_data[10] == 0xE0) { + //shifting and transferring the keystates to the QMK matrix variable + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 7; + if (current_matrix[i] != current_row) { + changed = true; + } + current_matrix[i] = current_row; + } + } + + return changed; +} |