// === MACROS ===
#define NUM_TIMERS 8
#define TIMER_QUANTUM 100
-#define TIMER_FREQ 1024 //Hz
+#define TIMER_RATE 13 // (Max: 15, Min: 2) - 15 = 1Hz, 13 = 4Hz, 10 = 1024Hz
+#define TIMER_FREQ (32768>>TIMER_RATE) //Hz
#define MS_PER_TICK_WHOLE (1000/(TIMER_FREQ))
#define MS_PER_TICK_FRACT ((Uint64)(1000*TIMER_FREQ-((Uint64)MS_PER_TICK_WHOLE)*0x80000000/TIMER_FREQ))
outb(0x70, inb(0x70)&0x7F); // Disable NMIs
__asm__ __volatile__ ("cli"); // Disable normal interrupts
+ // Set IRQ8 firing rate
+ outb(0x70, 0x0A); // Set the index to register A
+ val = inb(0x71); // Get the current value of register A
+ outb(0x70, 0x0A); // Reset index to A
+ val &= 0xF0;
+ val |= TIMER_RATE;
+ outb(0x71, val); // Update the timer rate
+
// Enable IRQ8
outb(0x70, 0x0B); // Set the index to register B
val = inb(0x71); // Read the current value of register B
outb(0x70, inb(0x70)|0x80); // Disable NMIs
// Install IRQ Handler
- //IRQ_AddHandler(8, Time_Interrupt);
+ IRQ_AddHandler(8, Time_Interrupt);
return 0;
}
inb(0x71); // Just throw away contents.
}
+#if 0
/**
* \fn void Time_TimerThread()
*/
-#if 0
void Time_TimerThread()
{
Sint64 next;
i < NUM_TIMERS;
i ++)
{
- //Log("Timer %i", i);
if(gTimers[i].Callback == NULL) continue;
- Log("%i - %lli < %lli", i, giTimestamp, gTimers[i].FiresAfter);
if(giTimestamp < gTimers[i].FiresAfter) continue;
callback = gTimers[i].Callback;
gTimers[i].Callback = NULL;
gTimers[ret].Callback = Callback;
gTimers[ret].FiresAfter = giTimestamp + Delta;
gTimers[ret].Argument = Argument;
- Log("Callback = %p", Callback);
- Log("Timer %i fires at %lli", ret, gTimers[ret].FiresAfter);
+ //Log("Callback = %p", Callback);
+ //Log("Timer %i fires at %lli", ret, gTimers[ret].FiresAfter);
return ret;
}
return -1;