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590 lines
14 KiB
590 lines
14 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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#define DEBUG_SERIAL false
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/**
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* TODO:
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TEST
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TEST2
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#left IO Expander found at 0x00
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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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#include "ArduinoKeyboard.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 "digitalWriteFast.h"
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#include <Wire.h>
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#include "sx1509_library.h"
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const byte LEFT_SX1509_ADDRESS = 0x70; // SX1509 I2C address (10)
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const byte RIGHT_SX1509_ADDRESS = 0x71; // SX1509 I2C address (11)
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sx1509Class leftsx1509(LEFT_SX1509_ADDRESS);
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sx1509Class rightsx1509(RIGHT_SX1509_ADDRESS);
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int right_initted = 0;
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int left_initted =0;
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#define TS(X) //Serial.print(micros() );Serial.print("\t");Serial.println(X);
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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 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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}
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}
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}
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void set_keymap(Key keymapEntry, byte matrixStateEntry) {
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if (keymapEntry.flags & SWITCH_TO_KEYMAP) {
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// this logic sucks. there is a better way TODO this
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if (! (keymapEntry.flags ^ ( MOMENTARY | SWITCH_TO_KEYMAP))) {
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if (key_is_pressed(matrixStateEntry)) {
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if ( keymapEntry.rawKey == KEYMAP_NEXT) {
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active_keymap++;
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} else if ( keymapEntry.rawKey == KEYMAP_PREVIOUS) {
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active_keymap--;
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} else {
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active_keymap = keymapEntry.rawKey;
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}
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}
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} else if (! (keymapEntry.flags ^ ( SWITCH_TO_KEYMAP))) {
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// switch keymap and stay there
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if (key_toggled_on(matrixStateEntry)) {
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active_keymap = primary_keymap = keymapEntry.rawKey;
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save_primary_keymap(primary_keymap);
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#ifdef DEBUG_SERIAL
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Serial.print("keymap is now:");
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Serial.print(active_keymap);
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#endif
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}
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}
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}
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}
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void scan_matrix()
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{
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//scan the Keyboard matrix looking for connections
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for (byte row = 0; row < LEFT_ROWS; row++) {
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TS("Scanning row ")
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if (left_initted) {
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leftsx1509.updatePinState(left_rowpins[row], LOW);
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leftsx1509.sendPinStates();
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leftsx1509.fetchPinStates();
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}
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if (right_initted) {
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rightsx1509.updatePinState(right_rowpins[row], LOW);
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rightsx1509.sendPinStates();
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rightsx1509.fetchPinStates();
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}
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for (byte col = 0; col < LEFT_COLS; col++) {
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TS("Scanning col")
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//If we see an electrical connection on I->J,
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matrixState[row][col] <<= 1;
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matrixState[row][(COLS-1)-col] <<= 1;
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TS("Reading left pin")
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if (left_initted && leftsx1509.readPrefetchedPin(left_colpins[col])) {
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matrixState[row][col] |= 0;
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} else {
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matrixState[row][col] |= 1;
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}
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TS("Reading right pin")
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if (right_initted && rightsx1509.readPrefetchedPin(right_colpins[col])) {
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matrixState[row][(COLS - 1) - col] |= 0;
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} else {
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matrixState[row][(COLS - 1) - col] |= 1;
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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
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// through the matrix scan
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// set_keymap(keymaps[active_keymap][row][col], matrixState[row][col]);
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// set_keymap(keymaps[active_keymap][row][(COLS - 1) - col], matrixState[row][(COLS - 1) - col]);
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}
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TS("clearing output pins")
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if (left_initted)
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leftsx1509.updatePinState(left_rowpins[row], HIGH);
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if (right_initted)
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rightsx1509.updatePinState(right_rowpins[row], HIGH);
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}
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TS("Releasing keys not being pressed")
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release_keys_not_being_pressed();
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TS("Sending key report");
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Keyboard.sendCurrentReport();
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}
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// Command mode
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//
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void command_reboot_bootloader() {
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Keyboard.println("Rebooting to bootloader");
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Serial.end();
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// Set the magic bits to get a Caterina-based device
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// to reboot into the bootloader and stay there, rather
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// than run move onward
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//
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// These values are the same as those defined in
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// Caterina.c
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uint16_t bootKey = 0x7777;
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uint16_t *const bootKeyPtr = (uint16_t *)0x0800;
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// Stash the magic key
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*bootKeyPtr = bootKey;
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// Set a watchdog timer
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wdt_enable(WDTO_120MS);
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while (1) {} // This infinite loop ensures nothing else
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// happens before the watchdog reboots us
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}
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void command_plugh() {
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commandMode = !commandMode;
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if (commandMode) {
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Keyboard.println("");
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Keyboard.println("Entering command mode!");
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} else {
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Keyboard.println("Leaving command mode!");
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Keyboard.println("");
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}
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}
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void setup_command_mode() {
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commandBufferSize = 0;
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commandMode = false;
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commandPromptPrinted = false;
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}
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boolean command_ends_in_return() {
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if (
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commandBuffer[commandBufferSize - 1] == KEY_ENTER ||
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commandBuffer[commandBufferSize - 1] == KEY_RETURN ) {
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return true;
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} else {
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return false;
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}
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}
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boolean is_command_buffer(byte* myCommand) {
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if (!command_ends_in_return()) {
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return false;
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}
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int i = 0;
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do {
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if (commandBuffer[i] != myCommand[i]) {
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return false;
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}
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} while (myCommand[++i] != NULL);
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return true;
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}
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void process_command_buffer() {
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if (!command_ends_in_return()) {
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return;
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}
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// This is the only command we might want to execute when
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// we're not in command mode, as it's the only way to toggle
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// command mode on
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static byte cmd_plugh[] = {KEY_P, KEY_L, KEY_U, KEY_G, KEY_H, NULL};
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if (is_command_buffer(cmd_plugh)) {
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command_plugh();
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}
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// if we've toggled command mode off, get out of here.
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if (!commandMode) {
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commandBufferSize = 0;
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return;
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}
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// Handle all the other commands here
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static byte cmd_reboot_bootloader[] = { KEY_B, KEY_O, KEY_O, KEY_T, KEY_L, KEY_O, KEY_A, KEY_D, KEY_E, KEY_R, NULL};
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static byte cmd_version[] = { KEY_V, KEY_E, KEY_R, KEY_S, KEY_I, KEY_O, KEY_N, NULL};
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if (is_command_buffer(cmd_reboot_bootloader)) {
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command_reboot_bootloader();
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} else if (is_command_buffer(cmd_version)) {
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Keyboard.println("");
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Keyboard.print("This is Keyboardio Firmware ");
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Keyboard.println(VERSION);
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}
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if (!commandPromptPrinted ) {
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Keyboard.print(">>> ");
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commandPromptPrinted = true;
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commandBufferSize = 0;
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}
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}
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void setup()
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{
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wdt_disable();
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delay(5000);
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Serial.begin(9600);
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//usbMaxPower = 100;
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Keyboard.begin();
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Mouse.begin();
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setup_leds();
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update_leds();
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setup_command_mode();
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setup_matrix();
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setup_pins();
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rightsx1509.fetchPinStates();
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primary_keymap = load_primary_keymap();
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}
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String myApp;
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void loop()
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{
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// if(Serial.available()) {
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// myApp = Serial.readString();
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// myApp.trim();
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// }
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TS("A noop takes...")
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TS("about to scan the matrix")
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active_keymap = primary_keymap;
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scan_matrix();
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send_key_events();
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reset_key_report();
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}
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void save_primary_keymap(byte keymap)
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{
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EEPROM.write(EEPROM_KEYMAP_LOCATION, keymap);
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}
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byte load_primary_keymap()
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{
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byte keymap = EEPROM.read(EEPROM_KEYMAP_LOCATION);
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if (keymap >= KEYMAPS ) {
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return 0; // undefined positions get saved as 255
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}
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return keymap;
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}
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// Debugging Reporting
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//
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void report_matrix()
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{
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#ifdef DEBUG_SERIAL
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if (reporting_counter++ % 100 == 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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Serial.print(matrixState[row][col], HEX);
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Serial.print(", ");
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}
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Serial.println("");
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}
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Serial.println("");
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}
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#endif
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}
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void report(byte row, byte col, boolean value)
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{
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#ifdef DEBUG_SERIAL
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Serial.print("Detected a change on ");
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Serial.print(col);
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Serial.print(" ");
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Serial.print(row);
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Serial.print(" to ");
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Serial.print(value);
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Serial.println(".");
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#endif
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}
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//
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// Key Reports
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//
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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
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// not be holding anymore and can now release. this is
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// 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_key_report()
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{
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memcpy( charsReportedLastTime,charsBeingReported, KEYS_HELD_BUFFER);
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memset(charsBeingReported,0,KEYS_HELD_BUFFER);
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}
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// Sending events to the usb host
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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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Serial.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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end_warping();
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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 send_key_events()
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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[active_keymap][row][col];
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if (mappedKey.flags & MOUSE_KEY ) {
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if (mappedKey.rawKey & MOUSE_WARP) {
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if (key_toggled_on(switchState)) {
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warp_mouse(mappedKey);
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}
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} else {
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handle_mouse_key_press(switchState, mappedKey, x, y);
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}
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} else if (mappedKey.flags & SYNTHETIC_KEY) {
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handle_synthetic_key_press(switchState, mappedKey);
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}
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else {
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if (String("Slack") == myApp) {
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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.print("Never gonna give you up!");
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}
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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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press_key(mappedKey);
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}
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} else if (key_toggled_off (switchState)) {
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release_key(mappedKey);
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}
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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 press_key(Key mappedKey) {
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Keyboard.press(mappedKey.rawKey);
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if (commandBufferSize >= 31) {
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commandBufferSize = 0;
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}
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commandBuffer[commandBufferSize++] = mappedKey.rawKey;
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if ( mappedKey.rawKey == KEY_ENTER ||
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mappedKey.rawKey == KEY_RETURN ) {
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commandPromptPrinted = false;
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process_command_buffer();
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commandBufferSize = 0;
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}
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}
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void release_key(Key mappedKey) {
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Keyboard.release(mappedKey.rawKey);
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}
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void make_input(sx1509Class sx1509, int pin) {
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sx1509.pinDir(pin, INPUT); // Set SX1509 pin 1 as an input
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sx1509.writePin(pin, HIGH); // Activate pull-up
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}
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void make_output(sx1509Class sx1509, int pin) {
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sx1509.pinDir(pin, OUTPUT);
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sx1509.writePin(pin, HIGH);
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}
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void setup_pins() {
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right_initted= setup_sx1509(rightsx1509, right_colpins, right_rowpins);
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left_initted= setup_sx1509(leftsx1509, left_colpins, left_rowpins);
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}
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int setup_sx1509 (sx1509Class sx1509, int colpins[], int rowpins[]) {
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byte initted;
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for(int counter = 0; counter< 10;counter++) {
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initted = sx1509.init();
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if (initted)
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break;
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}
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if (initted) { // init ok
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// In order to use the keypad, the clock must first be
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// configured. We can call configureClock() with the default
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// parameters (2MHz internal oscillator, no clock in/out).
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sx1509.configClock();
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// the debounceConfig function sets the debounce time. This
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// function's parameter should be a 3-bit value.
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// 0: 0.5ms * 2MHz/fOSC
|
|
// 1: 1ms * 2MHz/fOSC
|
|
// 2: 2ms * 2MHz/fOSC
|
|
// 3: 4ms * 2MHz/fOSC
|
|
// 4: 8ms * 2MHz/fOSC
|
|
// 5: 16ms * 2MHz/fOSC
|
|
// 6: 32ms * 2MHz/fOSC
|
|
// 7: 64ms * 2MHz/fOSC
|
|
sx1509.debounceConfig(4); // maximum debuonce time
|
|
|
|
|
|
for (int i = 0; i < LEFT_ROWS; i++) {
|
|
make_output(sx1509, rowpins[i]);
|
|
}
|
|
|
|
for (int j = 0; j < LEFT_COLS; j++) {
|
|
make_input(sx1509, colpins[j]);
|
|
sx1509.debounceEnable(colpins[j]);
|
|
}
|
|
|
|
|
|
}
|
|
return initted;
|
|
|
|
}
|