Macintosh-HW/mac-plus-ps2
1
0
Fork 0
mirror of https://github.com/trekawek/mac-plus-ps2.git synced 2025-03-17 05:30:35 +00:00
Code Issues Projects Releases Wiki Activity

Handle caps lock.

Browse Source
This commit is contained in:
Tomek Rękawek 2016-11-26 08:06:36 +01:00
parent 1e1ff3f4aa
commit 67aa99ca30
1 changed files with 19 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
mac_plus_ps2/mac_plus_ps2.ino
View File

@ -12,6 +12,7 @@
#define MAC_CLOCK_PIN 6
#define NULL_TRANSITION 0x7b
#define CAPS_LOCK 0x73
PS2Keyboard keyboard;
unsigned int scanCodesTable[256];
@ -24,7 +25,6 @@ void setup() {
initScancodes();
keyboard.begin(PS2_DATA_PIN, PS2_CLOCK_PIN);
//debug();
pinMode(LED_BUILTIN, OUTPUT);
pinMode(MAC_CLOCK_PIN, OUTPUT);
@ -72,7 +72,7 @@ byte readCmd() {
delayMicroseconds(20);
while (digitalRead(MAC_DATA_PIN) != LOW);
delayMicroseconds(400);
delayMicroseconds(400); // this is apparently required so we don't lose the first digit
byte cmd = readByte();
while (digitalRead(MAC_DATA_PIN) != HIGH);
@ -162,17 +162,33 @@ unsigned int getExtendedTransition() {
}
}
boolean capsLockPressed = false;
unsigned int translate(byte scanCode, boolean extended, boolean released) {
unsigned int translated = extended ? extScanCodesTable[scanCode] : scanCodesTable[scanCode];
if (translated == NULL_TRANSITION) {
return NULL_TRANSITION;
} else if (released) {
return translated | 0x80;
if (translated == CAPS_LOCK) {
return handleCapsLockRelease();
} else {
return translated | 0x80;
}
} else {
return translated;
}
}
unsigned int handleCapsLockRelease() {
if (capsLockPressed) {
capsLockPressed = false;
return CAPS_LOCK | 0x80;
} else {
capsLockPressed = true;
return NULL_TRANSITION;
}
}
byte waitForScanCode() {
while (true) {
byte s = keyboard.getScanCode();