Jack Humbert
7 years ago
parent
459dfa510e
commit
53c518f7d4
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/* Copyright 2018 Jack Humbert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qwiic_keyboard.h"
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#include "keymap.h"
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#include "matrix.h"
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#define QWIIC_KEYBOARD_LAYERS 16
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#define QWIIC_KEYBOARD_ROWS 8
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#define QWIIC_KEYBOARD_COLS 8
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#define QWIIC_KEYBOARD_HANDSHAKE_ADDRESS 0b01010100
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#define QWIIC_KEYBOARD_LISTENING_ADDRESS_START 0b01010110
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#define QWIIC_KEYBOARD_HANDSHAKE_MESSAGE_SIZE (2 + (QWIIC_KEYBOARD_LAYERS * QWIIC_KEYBOARD_ROWS * QWIIC_KEYBOARD_COLS))
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#define QWIIC_KEYBOARD_MATRIX_MESSAGE_SIZE MATRIX_ROWS
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bool qwiic_keyboard_master = false;
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bool qwiic_keyboard_connected = false;
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uint8_t * qwiic_keyboard_handshake_message = {0};
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uint8_t * qwiic_keyboard_matrix_message[QWIIC_KEYBOARD_ROWS] = {0};
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uint16_t qwiic_keyboard_keymap[QWIIC_KEYBOARD_LAYERS][QWIIC_KEYBOARD_ROWS][QWIIC_KEYBOARD_COLS] = {0};
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uint8_t qwiic_keyboard_new_listening_address = QWIIC_KEYBOARD_LISTENING_ADDRESS_START;
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uint8_t qwiic_keyboard_listening_address = QWIIC_KEYBOARD_LISTENING_ADDRESS_START;
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uint8_t qwiic_keyboard_matrix_rows;
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uint8_t qwiic_keyboard_matrix_cols;
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void qwiic_keyboard_setup(void) {
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twi2c_start_listening(qwiic_keyboard_listening_address, qwiic_keyboard_message_received);
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}
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void qwiic_keyboard_set_master() {
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twi2c_stop();
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qwiic_keyboard_master = true;
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}
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void qwiic_keyboard_task(void) {
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if (qwiic_keyboard_master) {
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if (qwiic_keyboard_connected) {
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if (MSG_OK == twi2c_transmit_receive(qwiic_keyboard_listening_address,
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NULL, 0,
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qwiic_keyboard_matrix_message, QWIIC_KEYBOARD_MATRIX_MESSAGE_SIZE
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)) {
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// process key event
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} else {
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// disconnect
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}
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}
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if (MSG_OK == twi2c_transmit_receive(QWIIC_KEYBOARD_HANDSHAKE_ADDRESS,
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qwiic_keyboard_new_listening_address, 1,
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qwiic_keyboard_handshake_message, QWIIC_KEYBOARD_HANDSHAKE_MESSAGE_SIZE
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)) {
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qwiic_keyboard_new_listening_address+=2;
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uint8_t * message_pointer = qwiic_keyboard_handshake_message;
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qwiic_keyboard_matrix_rows = *message_pointer++;
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qwiic_keyboard_matrix_cols = *message_pointer++;
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qwiic_keyboard_read_keymap(message_pointer);
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}
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}
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}
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twi2c_message_received qwiic_keyboard_message_received;
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extern matrix_row_t matrix[MATRIX_ROWS];
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uint8_t * qwiic_keyboard_reply;
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void qwiic_keyboard_message_received(uint8_t * body, uint16_t size) {
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if (qwiic_keyboard_connected) {
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memcpy(qwiic_keyboard_reply, matrix, QWIIC_KEYBOARD_MATRIX_MESSAGE_SIZE);
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twi2c_reply(qwiic_keyboard_reply, QWIIC_KEYBOARD_MATRIX_MESSAGE_SIZE);
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} else {
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qwiic_keyboard_connected = true;
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qwiic_keyboard_listening_address
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uint8_t * message_pointer = qwiic_keyboard_reply;
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*message_pointer++ = MATRIX_ROWS;
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*message_pointer++ = MATRIX_COLS;
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qwiic_keyboard_write_keymap(message_pointer);
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twi2c_reply(qwiic_keyboard_reply, QWIIC_KEYBOARD_HANDSHAKE_MESSAGE_SIZE);
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twi2c_stop();
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twi2c_start_listening(qwiic_keyboard_listening_address, qwiic_keyboard_message_received);
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}
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}
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void qwiic_keyboard_write_keymap(uint8_t * pointer) {
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for (uint8_t layer = 0; layer < QWIIC_KEYBOARD_LAYERS; layer++) {
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for (uint8_t row = 0; row < QWIIC_KEYBOARD_ROWS; row++) {
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for (uint8_t col = 0; col < QWIIC_KEYBOARD_COLS; col++) {
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uint16_t keycode = pgm_read_word(&keymaps[layer][row][col]);
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*pointer++ = (keycode >> 8);
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*pointer++ = (keycode & 0xFF);
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}
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}
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}
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}
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void qwiic_keyboard_read_keymap(uint8_t * pointer) {
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for (uint8_t layer = 0; layer < QWIIC_KEYBOARD_LAYERS; layer++) {
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for (uint8_t row = 0; row < QWIIC_KEYBOARD_ROWS; row++) {
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for (uint8_t col = 0; col < QWIIC_KEYBOARD_COLS; col++) {
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uint16_t keycode = *pointer++;
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keycode |= (*pointer++) << 8;
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qwiic_keyboard_keymap[layer][row][col] = keycode;
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}
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}
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}
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}
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@ -0,0 +1,22 @@
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/* Copyright 2018 Jack Humbert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QWIIC_KEYBOARD_H
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#define QWIIC_KEYBOARD_H
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#include "quantum.h"
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#endif
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