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/* Copyright 2018 Jack Humbert <jack.humb@gmail.com> |
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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 "joystiic.h" |
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#include "print.h" |
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#include "action.h" |
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#define JOYSTIIC_DEFAULT_ADDR 0x20 |
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#define JOYSTIIC_COMMAND_HORIZONTAL 0x00 |
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#define JOYSTIIC_COMMAND_VERTICAL 0x02 |
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#define JOYSTIIC_COMMAND_BUTTON 0x04 |
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#define JOYSTIIC_CENTER 512 |
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#define JOYSTIIC_DEADZONE 200 |
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uint16_t joystiic_horizontal; |
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uint16_t joystiic_vertical; |
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bool joystiic_button; |
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uint8_t joystiic_tx[1]; |
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uint8_t joystiic_rx_horizontal[2]; |
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uint8_t joystiic_rx_vertical[2]; |
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uint8_t joystiic_rx_button[1]; |
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enum { |
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JOYSTIIC_LEFT, |
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JOYSTIIC_RIGHT, |
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JOYSTIIC_UP, |
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JOYSTIIC_DOWN, |
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JOYSTIIC_PRESS |
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}; |
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bool joystiic_triggered[5] = {0}; |
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void joystiic_init(void) { |
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i2c_init(); |
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i2c_start(JOYSTIIC_DEFAULT_ADDR); |
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} |
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void joystiic_update(uint16_t horizontal, uint16_t vertical, bool button) { |
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joystiic_update_kb(horizontal, vertical, button); |
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joystiic_update_user(horizontal, vertical, button); |
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} |
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void joystiic_update_kb(uint16_t horizontal, uint16_t vertical, bool button) { |
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} |
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void joystiic_update_user(uint16_t horizontal, uint16_t vertical, bool button) { |
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} |
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void joystiic_trigger(uint8_t trigger, bool active) { |
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joystiic_trigger_kb(trigger, active); |
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joystiic_trigger_user(trigger, active); |
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} |
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void joystiic_trigger_kb(uint8_t trigger, bool active) { |
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switch (trigger) { |
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case JOYSTIIC_LEFT: active ? register_code(KC_L) : unregister_code(KC_L); break; |
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} |
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} |
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void joystiic_trigger_user(uint8_t trigger, bool active) { |
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} |
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void joystiic_task(void) { |
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// get horizontal axis |
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joystiic_tx[0] = JOYSTIIC_COMMAND_HORIZONTAL; |
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if (MSG_OK != i2c_transmit_receive(JOYSTIIC_DEFAULT_ADDR << 1, |
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joystiic_tx, 1, |
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joystiic_rx_horizontal, 2 |
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)) { |
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printf("error hori\n"); |
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} |
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joystiic_horizontal = ((uint16_t)joystiic_rx_horizontal[0] << 8) | joystiic_rx_horizontal[1]; |
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if (joystiic_horizontal > (JOYSTIIC_CENTER + JOYSTIIC_DEADZONE)) { |
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if (!joystiic_triggered[JOYSTIIC_LEFT]) { |
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joystiic_triggered[JOYSTIIC_LEFT] = true; |
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joystiic_trigger(JOYSTIIC_LEFT, true); |
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} |
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} else { |
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if (joystiic_triggered[JOYSTIIC_LEFT]) { |
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joystiic_triggered[JOYSTIIC_LEFT] = false; |
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joystiic_trigger(JOYSTIIC_LEFT, false); |
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} |
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} |
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if (joystiic_horizontal < (JOYSTIIC_CENTER - JOYSTIIC_DEADZONE)) { |
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if (!joystiic_triggered[JOYSTIIC_RIGHT]) { |
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joystiic_triggered[JOYSTIIC_RIGHT] = true; |
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joystiic_trigger(JOYSTIIC_RIGHT, true); |
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} |
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} else { |
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if (joystiic_triggered[JOYSTIIC_RIGHT]) { |
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joystiic_triggered[JOYSTIIC_RIGHT] = false; |
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joystiic_trigger(JOYSTIIC_RIGHT, false); |
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} |
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} |
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// get vertical axis |
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joystiic_tx[0] = JOYSTIIC_COMMAND_VERTICAL; |
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if (MSG_OK != i2c_transmit_receive(JOYSTIIC_DEFAULT_ADDR << 1, |
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joystiic_tx, 1, |
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joystiic_rx_vertical, 2 |
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)) { |
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printf("error vert\n"); |
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} |
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joystiic_vertical = ((uint16_t)joystiic_rx_vertical[0] << 8) | joystiic_rx_vertical[1]; |
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if (joystiic_vertical > (JOYSTIIC_CENTER + JOYSTIIC_DEADZONE)) { |
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if (!joystiic_triggered[JOYSTIIC_UP]) { |
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joystiic_triggered[JOYSTIIC_UP] = true; |
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joystiic_trigger(JOYSTIIC_UP, true); |
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} |
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} else { |
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if (joystiic_triggered[JOYSTIIC_UP]) { |
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joystiic_triggered[JOYSTIIC_UP] = false; |
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joystiic_trigger(JOYSTIIC_UP, false); |
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} |
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} |
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if (joystiic_vertical < (JOYSTIIC_CENTER - JOYSTIIC_DEADZONE)) { |
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if (!joystiic_triggered[JOYSTIIC_DOWN]) { |
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joystiic_triggered[JOYSTIIC_DOWN] = true; |
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joystiic_trigger(JOYSTIIC_DOWN, true); |
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} |
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} else { |
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if (joystiic_triggered[JOYSTIIC_DOWN]) { |
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joystiic_triggered[JOYSTIIC_DOWN] = false; |
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joystiic_trigger(JOYSTIIC_DOWN, false); |
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} |
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} |
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// get button press |
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joystiic_tx[0] = JOYSTIIC_COMMAND_BUTTON; |
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if (MSG_OK != i2c_transmit_receive(JOYSTIIC_DEFAULT_ADDR << 1, |
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joystiic_tx, 1, |
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joystiic_rx_button, 1 |
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)) { |
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printf("error vert\n"); |
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} |
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joystiic_button = joystiic_rx_button[0]; |
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if (joystiic_button) { |
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if (!joystiic_triggered[JOYSTIIC_PRESS]) { |
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joystiic_triggered[JOYSTIIC_PRESS] = true; |
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joystiic_trigger(JOYSTIIC_PRESS, true); |
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} |
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} else { |
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if (joystiic_triggered[JOYSTIIC_PRESS]) { |
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joystiic_triggered[JOYSTIIC_PRESS] = false; |
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joystiic_trigger(JOYSTIIC_PRESS, false); |
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} |
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} |
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joystiic_update(joystiic_horizontal, joystiic_vertical, joystiic_button); |
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//printf("%d\n", joystiic[0]); |
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// SEND_STRING("H: "); |
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// send_word(joystiic_rx_horizontal[0]); |
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// tap_code(KC_SPACE); |
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// send_word(joystiic_rx_horizontal[1]); |
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// tap_code(KC_SPACE); |
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} |