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299 lines
7.7 KiB
299 lines
7.7 KiB
// Do not remove the include below
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#include "ArduinoKeyboard.h"
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// Copyright 2013 Jesse Vincent <jesse@fsck.com>
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// All Rights Reserved. (To be licensed under an opensource license
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// before the release of the keyboard.io model 01
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/**
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* TODO:
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add mouse acceleration/deceleration
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add mouse inertia
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add series-of-character macros
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add series of keystroke macros
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use a lower-level USB API
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*
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**/
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#include <stdio.h>
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#include <math.h>
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#include "KeyboardConfig.h"
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#include "keymaps_generated.h"
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#include <EEPROM.h> // Don't need this for CLI compilation, but do need it in the IDE
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#include "KeyboardEEPROM.h"
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#include "KeyboardMouse.h"
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#include "KeyboardDebugging.h"
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//extern int usbMaxPower;
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byte matrixState[ROWS][COLS];
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byte charsBeingReported[KEYS_HELD_BUFFER]; // A bit vector for the 256 keys we might conceivably be holding down
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byte charsReportedLastTime[KEYS_HELD_BUFFER]; // A bit vector for the 256 keys we might conceivably be holding down
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long reporting_counter = 0;
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byte current_layer = 0;
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byte active_layer = 0;
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void release_keys_not_being_pressed()
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{
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// we use charsReportedLastTime to figure out what we might not be holding anymore and can now release. this is destructive to charsReportedLastTime
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for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
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// for each key we were holding as of the end of the last cycle
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// see if we're still holding it
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// if we're not, call an explicit Release
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if (charsReportedLastTime[i] != 0x00) {
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// if there _was_ a character in this slot, go check the
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// currently held characters
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for (byte j = 0; j < KEYS_HELD_BUFFER; j++) {
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if (charsReportedLastTime[i] == charsBeingReported[j]) {
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// if's still held, we don't need to do anything.
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charsReportedLastTime[i] = 0x00;
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break;
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}
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}
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}
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}
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for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
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if (charsReportedLastTime[i] != 0x00) {
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Keyboard.release(charsReportedLastTime[i]);
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}
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}
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}
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void record_key_being_pressed(byte character)
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{
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for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
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// todo - deal with overflowing the 12 key buffer here
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if (charsBeingReported[i] == 0x00) {
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charsBeingReported[i] = character;
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break;
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}
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}
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}
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void reset_matrix()
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{
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for (byte col = 0; col < COLS; col++) {
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for (byte row = 0; row < ROWS; row++) {
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matrixState[row][col] <<= 1;
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}
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}
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for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
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charsReportedLastTime[i] = charsBeingReported[i];
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charsBeingReported[i] = 0x00;
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}
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}
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void handle_synthetic_key_press(byte switchState, Key mappedKey) {
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if (mappedKey.flags & IS_CONSUMER) {
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if (key_toggled_on (switchState)) {
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Keyboard.consumerControl(mappedKey.rawKey);
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}
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}
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else if (mappedKey.flags & IS_SYSCTL) {
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if (key_toggled_on (switchState)) {
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Keyboard.systemControl(mappedKey.rawKey);
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}
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}
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else if (mappedKey.flags & IS_MACRO) {
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if (key_toggled_on (switchState)) {
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if (mappedKey.rawKey == 1) {
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Keyboard.print("Keyboard.IO keyboard driver v0.00");
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}
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}
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} else if (mappedKey.rawKey == KEY_MOUSE_BTN_L
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|| mappedKey.rawKey == KEY_MOUSE_BTN_M
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|| mappedKey.rawKey == KEY_MOUSE_BTN_R) {
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if (key_toggled_on (switchState)) {
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Mouse.press(mappedKey.rawKey);
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} else if (key_is_pressed(switchState)) {
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} else if (Mouse.isPressed(mappedKey.rawKey) ) {
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Mouse.release(mappedKey.rawKey);
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}
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}
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}
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void handle_mouse_key_press(byte switchState, Key mappedKey, char &x, char &y) {
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if (key_is_pressed(switchState)) {
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if (mappedKey.rawKey & MOUSE_UP) {
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y -= 1;
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}
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if (mappedKey.rawKey & MOUSE_DN) {
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y += 1;
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}
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if (mappedKey.rawKey & MOUSE_L) {
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x -= 1;
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}
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if (mappedKey.rawKey & MOUSE_R) {
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x += 1 ;
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}
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}
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}
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void send_key_events(byte layer)
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{
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//for every newly pressed button, figure out what logical key it is and send a key down event
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// for every newly released button, figure out what logical key it is and send a key up event
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// TODO:switch to sending raw HID packets
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// really, these are signed small ints
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char x = 0;
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char y = 0;
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for (byte row = 0; row < ROWS; row++) {
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for (byte col = 0; col < COLS; col++) {
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byte switchState = matrixState[row][col];
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Key mappedKey = keymaps[layer][row][col];
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if (mappedKey.flags & MOUSE_KEY ) {
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handle_mouse_key_press(matrixState[row][col], keymaps[layer][row][col], x, y);
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} else if (mappedKey.flags & SYNTHETIC_KEY) {
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handle_synthetic_key_press(matrixState[row][col], keymaps[layer][row][col]);
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}
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else {
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if (key_is_pressed(switchState)) {
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record_key_being_pressed(mappedKey.rawKey);
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if (key_toggled_on (switchState)) {
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Keyboard.press(mappedKey.rawKey);
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}
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} else if (key_toggled_off (switchState)) {
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Keyboard.release(mappedKey.rawKey);
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}
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}
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}
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}
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handle_mouse_movement(x, y);
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release_keys_not_being_pressed();
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}
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void setup_pins()
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{
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//set up the row pins as outputs
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for (byte row = 0; row < ROWS; row++) {
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pinMode(rowPins[row], OUTPUT);
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digitalWrite(rowPins[row], HIGH);
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}
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for (byte col = 0; col < COLS; col++) {
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pinMode(colPins[col], INPUT);
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digitalWrite(colPins[col], HIGH);
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//drive em high by default s it seems to be more reliable than driving em low
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}
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}
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void setup_matrix()
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{
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//blank out the matrix.
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for (byte col = 0; col < COLS; col++) {
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for (byte row = 0; row < ROWS; row++) {
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matrixState[row][col] = 0;
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}
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}
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}
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void set_keymap_layer(Key keymapEntry, byte matrixStateEntry) {
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if (keymapEntry.flags & SWITCH_TO_LAYER) {
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// this logic sucks. there is a better way TODO this
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if (! (keymapEntry.flags ^ ( MOMENTARY | SWITCH_TO_LAYER))) {
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if (key_is_pressed(matrixStateEntry)) {
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if ( keymapEntry.rawKey == LAYER_NEXT) {
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active_layer++;
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} else if ( keymapEntry.rawKey == LAYER_PREVIOUS) {
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active_layer--;
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} else {
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active_layer = keymapEntry.rawKey;
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}
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}
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} else if (! (keymapEntry.flags ^ ( SWITCH_TO_LAYER))) {
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// switch layer and stay there
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if (key_toggled_on(matrixStateEntry)) {
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current_layer = active_layer = keymapEntry.rawKey;
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save_current_layer(current_layer);
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}
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}
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}
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}
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void handle_immediate_action_during_matrix_scan(Key keymapEntry, byte matrixStateEntry) {
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set_keymap_layer(keymapEntry, matrixStateEntry);
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}
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void scan_matrix()
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{
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active_layer = current_layer;
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//scan the Keyboard matrix looking for connections
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for (byte row = 0; row < ROWS; row++) {
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digitalWrite(rowPins[row], LOW);
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for (byte col = 0; col < COLS; col++) {
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//If we see an electrical connection on I->J,
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if (digitalRead(colPins[col])) {
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matrixState[row][col] |= 0; // noop. just here for clarity
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} else {
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matrixState[row][col] |= 1; // noop. just here for clarity
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}
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// while we're inspecting the electrical matrix, we look
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// to see if the Key being held is a firmware level
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// metakey, so we can act on it, lest we only discover
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// that we should be looking at a seconary Keymap halfway through the matrix scan
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handle_immediate_action_during_matrix_scan(keymaps[active_layer][row][col], matrixState[row][col]);
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}
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digitalWrite(rowPins[row], HIGH);
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}
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}
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void setup()
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{
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//usbMaxPower = 100;
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Serial.begin(115200);
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Keyboard.begin();
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Mouse.begin();
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//#ifdef DEBUG_SERIAL
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//#endif
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setup_matrix();
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setup_pins();
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Serial.println("loaded the matrix");
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current_layer = load_current_layer();
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active_layer = current_layer;
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}
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void loop()
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{
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scan_matrix();
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send_key_events(active_layer);
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reset_matrix();
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}
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