/**
* Sends a scancode to the keyboard.
*
* @returns COM status code
* @param scancode The scancode to send
*/
STDMETHODIMP Keyboard::PutScancode(LONG scancode)
{
com::SafeArray<LONG> scancodes(1);
scancodes[0] = scancode;
return PutScancodes(ComSafeArrayAsInParam(scancodes), NULL);
}
static unsigned char kbd_read_input(void)
{
int i, j, k, l;
unsigned char prev;
static unsigned char count = 0;
static unsigned char oldcodes[KBD_ROWS][KBD_COLUMNS]={{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},
{0,0,0,0,0,0,0,0}};
unsigned char inputcode[KBD_ROWS][KBD_COLUMNS];
memset(inputcode, 0, sizeof(unsigned char) * (KBD_ROWS * KBD_COLUMNS));
scancodes(inputcode);
for(i = 0; i < KBD_COLUMNS; i++)
{
for(j = 0; j < KBD_ROWS; j++)
{
// if(oldcodes[j][i] == 0xe0)
// oldcodes[j][i] =
if(oldcodes[j][i] != inputcode[j][i])
{
// Value of the key before entering this function
prev = oldcodes[j][i];
// KEYUP
if(inputcode[j][i] == 0 && oldcodes[j][i] != 0 && !(oldcodes[j][i] & KBD_KEYUP))
{
oldcodes[j][i] |= KBD_KEYUP;
if(mode_ena == KBD_UP_ON)
mode_ena = KBD_UP_OFF;
if(prev == KBD_MODESCAN)
if(mode_ena == KBD_DOWN_HOLD)
mode_ena = KBD_UP_OFF;
else if(mode_ena == KBD_DOWN)
mode_ena = KBD_UP_ON;
if(mode_ena == KBD_DOWN)
mode_ena = KBD_DOWN_HOLD;
}
// RESET KEYUP
else if(oldcodes[j][i] & KBD_KEYUP)
oldcodes[j][i] = 0;
// KEY DOWN
else
{
oldcodes[j][i] = inputcode[j][i];
// Parse out mode modifiers before the keyboard interpreter can touch them
if(inputcode[j][i] == KBD_MODESCAN)
{
if(!mode_ena)
mode_ena = KBD_DOWN;
continue;
}
if(inputcode[j][i] == KBD_NUMCURSCAN)
{
numcur_ena = numcur_ena?0:1;
continue;
}
}
//printk("Modified: (%#x,%#x), ipv:%#x, To: (%#.2x), From: (%#.2x), Flags:%d,%d,%d\r\n", j, i, inputcode[j][i], oldcodes[j][i], prev, mode_ena, shift_ena, numcur_ena);
return oldcodes[j][i];
}
}
}
return (unsigned char)(KBD_NO_DATA);
}