/*
* initialize clock on timer 0.
*/
void Clock_driver_support_initialize_hardware (void)
{
uint32_t freq =
1000 / (rtems_configuration_get_microseconds_per_tick () / 1000);
printk ("[+] clock started\n");
TIMER_CR (0) = TIMER_ENABLE | TIMER_IRQ_REQ | TIMER_DIV_64;
printk ("[#] setting clock to %u hz\n", freq);
TIMER_DATA (0) = TIMER_FREQ_64 ((uint16_t) freq);
}
void configureTimer() {
// Initialize timer_ticks
timer_ticks = 0;
// Configure timer to trigger an interrupt every 100 ms
TIMER_CR(0) = TIMER_ENABLE | TIMER_DIV_64 | TIMER_IRQ_REQ;
TIMER_DATA(0) = TIMER_FREQ_64(10);
// Associate the ISR (timerISR) to the interrupt line and enable it
irqSet(IRQ_TIMER0, &timerISR);
irqEnable(IRQ_TIMER0);
}
void VblankHandler(void)
{
scanKeys();
u16 keysdown = keysDown();
u16 keysup = keysUp();
u16 keysheld = keysHeld();
touchPosition touch;
touchRead(&touch);
if(!touch_was_down && keysdown & KEY_TOUCH) {
touch_was_down = 1;
pm_x0 = touch.px;
pm_y0 = touch.py;
// Is the pen on the keyboard?
if( (touch.px > 8*keyb_xpos) && (touch.py > 8*keyb_ypos)
&& (touch.px < 8*(keyb_xpos+keyb_width)) && (touch.py < 8*(keyb_ypos+keyb_height)) ) {
// Look up the note in the hit-array
u8 kbx, kby;
kbx = touch.px/8 - keyb_xpos;
kby = touch.py/8 - keyb_ypos;
u8 note = keyb_hit[kby][kbx];
currnote = note + 12*baseOctave;
lastnote = note;
setKeyPal(note);
// Play the note
play(note);
}
} else if(keysup & KEY_TOUCH) {
touch_was_down = 0;
resetPals();
stop(lastnote);
pitchChange(0);
} else if(touch_was_down && keysheld & KEY_TOUCH) {
s16 dx, dy;
dx = touch.px - pm_x0;
if(dx<0) dx = 0;
dy = touch.py - pm_y0;
pitchChange(-dy);
pressureChange(dx);
}
if(keysdown & KEY_X) {
pitchChange(0);
}
if(keysdown & KEY_Y) {
pressureChange(0);
}
if(keysdown & KEY_RIGHT)
{
if(baseOctave < 9)
baseOctave++;
displayOctave(baseOctave);
iprintf("base octave %u\n", baseOctave);
}
if(keysdown & KEY_LEFT)
{
if(baseOctave > 0)
baseOctave--;
displayOctave(baseOctave);
iprintf("base octave %u\n", baseOctave);
}
if(keysdown & KEY_UP)
{
if(channel < 15)
channel++;
displayChannel(channel);
iprintf("using midi channel %u\n", channel);
}
if(keysdown & KEY_DOWN)
{
if(channel > 0)
channel--;
displayChannel(channel);
iprintf("using midi channel %u\n", channel);
}
if(keysdown & KEY_B) {
//TIMER1_DATA = TIMER_FREQ_64(1000);
//TIMER1_CR = TIMER_ENABLE | TIMER_DIV_64 | TIMER_IRQ_REQ;
timerStart(1, ClockDivider_64, TIMER_FREQ_64(1000), Smoke);
row=0;
tick=0;
}
}
