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362 lines
9.6 KiB
362 lines
9.6 KiB
// Copyright 2015 Keyboardio, inc. <jesse@keyboard.io>
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// See "LICENSE" for license details
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#define DEBUG_SERIAL false
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/**
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* TODO:
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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 "KeyboardioFirmware.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 <Wire.h>
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#include "KeyboardioSX1509.h"
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#include "HID-Project.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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//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(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_toggled_on(matrixStateEntry)) {
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if ( keymapEntry.rawKey == KEYMAP_NEXT) {
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temporary_keymap++;
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} else if ( keymapEntry.rawKey == KEYMAP_PREVIOUS) {
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temporary_keymap--;
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} else {
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temporary_keymap = keymapEntry.rawKey;
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}
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}
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if (key_toggled_off(matrixStateEntry)) {
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temporary_keymap = primary_keymap;
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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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temporary_keymap = primary_keymap = keymapEntry.rawKey;
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save_primary_keymap(primary_keymap);
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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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x = 0;
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y = 0;
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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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TS("calling send_key_event")
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send_key_event(row, col);
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if (right_initted)
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send_key_event(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("Sending key report");
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Keyboard.sendReport();
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Keyboard.releaseAll();
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handle_mouse_movement(x, y);
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}
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// Command mode
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//
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void reboot_bootloader() {
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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 setup() {
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wdt_disable();
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Serial.begin(115200);
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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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led_bootup();
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setup_matrix();
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setup_pins();
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rightsx1509.fetchPinStates();
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temporary_keymap = 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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// 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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scan_matrix();
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TS("updating LEDs");
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update_leds(temporary_keymap == NUMPAD_KEYMAP);
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}
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void save_primary_keymap(byte keymap) {
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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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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 0; // return keymap;
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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_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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}
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if (mappedKey.flags & IS_CONSUMER) {
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if (key_toggled_on (switchState)) {
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ConsumerControl.press(mappedKey.rawKey);
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}
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}
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else if (mappedKey.flags & IS_INTERNAL) {
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if (key_toggled_on (switchState)) {
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if (mappedKey.rawKey == LED_TOGGLE) {
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next_led_mode();
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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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SystemControl.press(mappedKey.rawKey);
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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_event(byte row, byte col) {
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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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byte switchState = matrixState[row][col];
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Key mappedKey = keymaps[temporary_keymap][row][col];
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set_keymap(keymaps[primary_keymap][row][col], switchState);
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if (mappedKey.flags & SYNTHETIC_KEY) {
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handle_synthetic_key_press(switchState, mappedKey);
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} else {
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if (key_is_pressed(switchState)) {
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press_key(mappedKey);
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}
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}
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}
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void press_key(Key mappedKey) {
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if (mappedKey.flags & SHIFT_HELD) {
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Keyboard.press(Key_LShift.rawKey);
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}
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Keyboard.press(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
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// 1: 1ms * 2MHz/fOSC
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// 2: 2ms * 2MHz/fOSC
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// 3: 4ms * 2MHz/fOSC
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// 4: 8ms * 2MHz/fOSC
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// 5: 16ms * 2MHz/fOSC
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// 6: 32ms * 2MHz/fOSC
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// 7: 64ms * 2MHz/fOSC
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sx1509.debounceConfig(4); // maximum debuonce time
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for (int i = 0; i < LEFT_ROWS; i++) {
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make_output(sx1509, rowpins[i]);
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}
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for (int j = 0; j < LEFT_COLS; j++) {
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make_input(sx1509, colpins[j]);
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sx1509.debounceEnable(colpins[j]);
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}
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}
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return initted;
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}
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