Chroma/chroma/system/drivers/keyboard.c
2020-11-26 04:03:29 +00:00

116 lines
2.0 KiB
C

#include <kernel/chroma.h>
char keys[128] = {
0, 27,
'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '\b',
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
0,
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '#',
0,
'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
0,
'*', 0,
' ', 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0,
0,
0,
0,
0,
0,
'-',
0,
0,
0,
'+',
0,
0,
0,
0,
0,
0, 0, 0,
0,
0,
0,
};
void KbdEcho() {
if(!KbdFlags.EchoCount) {
if(!KbdFlags.Echo) {
Send8042(0xEE);
}
} else {
KbdFlags.EchoCount = 0;
KbdFlags.Echo = 0;
}
}
void UpdateKeyboard(uint8_t msg) {
InputBuffer[0] = msg;
switch(msg) {
case 0x0:
KbdFlags.Error = 1;
//ResendBuffer();
break;
case 0xAA:
KbdFlags.SelfTest = 1;
break;
case 0xEE:
KbdFlags.Echo = 0;
KbdFlags.EchoCount = 2;
KbdEcho();
break;
case 0xFA:
KbdFlags.ACK = 1;
//ProgressBuffer();
break;
case 0xFC:
case 0xFD:
KbdFlags.SelfTest = 0;
KbdFlags.Error = 1;
//RestartKbd();
break;
case 0xFE:
//ResendBuffer();
break;
case 0xFF:
KbdFlags.Error = 1;
//ResendBuffer();
break;
default:
break;
}
if(msg & 0x80) {
} else {
SerialPrintf("Key pressed: [\\%c]\r\n", keys[msg]);
WriteChar(keys[msg]);
}
}
void Send8042(size_t info) {
for(size_t i = 0; i < 8; i++) {
unsigned char chr = (unsigned char) info;
if(chr != 0) {
WritePort(0x60, chr, 1);
WaitFor8042();
}
}
}
void WaitFor8042() {
bool full = true;
while(full) {
full = ReadPort(0x64, 1) & 1;
}
}