From c72120baab093a4cfdd9192e8bde0c64ee4172ae Mon Sep 17 00:00:00 2001 From: peepeetee <43021794+peepeetee@users.noreply.github.com> Date: Sat, 12 Feb 2022 09:13:48 +0800 Subject: move @satt99 's comet46 to satt/ (#16059) --- keyboards/satt/comet46/matrix.c | 65 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 keyboards/satt/comet46/matrix.c (limited to 'keyboards/satt/comet46/matrix.c') diff --git a/keyboards/satt/comet46/matrix.c b/keyboards/satt/comet46/matrix.c new file mode 100644 index 0000000000..a92c3e8431 --- /dev/null +++ b/keyboards/satt/comet46/matrix.c @@ -0,0 +1,65 @@ +/* +Copyright 2012 Jun Wako +Copyright 2014 Jack Humbert + +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 . +*/ + +#include "quantum.h" +#include "matrix.h" +#include "uart.h" + +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 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 > 10000) { + break; + } + } + uart_data[i] = uart_read(); + } + + //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] << 5; + if (current_matrix[i] != current_row) { + changed = true; + } + current_matrix[i] = current_row; + } + } + + return changed; +} -- cgit v1.2.3