static void
init(void)
{
/* set modes before to enable the port */
gpio_dir(PROG_BUTTON, GPIO_INPUT);
pin_mode(PROG_BUTTON, PIN_MODE_PULLUP);
gpio_dir(TARGET_RESET, GPIO_INPUT);
gpio_dir(TARGET_LED, GPIO_INPUT);
/* set digital debounce/filter */
pin_physport_from_pin(PROG_BUTTON)->dfcr.cs = PORT_CS_LPO;
pin_physport_from_pin(PROG_BUTTON)->dfwr.filt = 31;
/* button interrupt */
pin_physport_from_pin(PROG_BUTTON)->dfer |= 1 << pin_physpin_from_pin(PROG_BUTTON);
pin_physport_from_pin(PROG_BUTTON)->pcr[pin_physpin_from_pin(PROG_BUTTON)].irqc = PCR_IRQC_INT_FALLING;
/* reset interrupt */
pin_physport_from_pin(TARGET_RESET)->pcr[pin_physpin_from_pin(TARGET_RESET)].irqc = PCR_IRQC_INT_RISING;
/* LED interrupt */
pin_physport_from_pin(TARGET_LED)->pcr[pin_physpin_from_pin(TARGET_LED)].irqc = PCR_IRQC_INT_FALLING;
int_enable(IRQ_PORTD);
gpio_dir(LED_SUCCESS, GPIO_OUTPUT);
gpio_dir(LED_FAIL, GPIO_OUTPUT);
timeout_init();
}
void
PORTD_Handler(void)
{
if (pin_physport_from_pin(PROG_BUTTON)->pcr[pin_physpin_from_pin(PROG_BUTTON)].isf) {
pin_physport_from_pin(PROG_BUTTON)->pcr[pin_physpin_from_pin(PROG_BUTTON)].raw |= 0; /* clear isf */
statemachine(ev_button);
}
if (pin_physport_from_pin(TARGET_RESET)->pcr[pin_physpin_from_pin(TARGET_RESET)].isf) {
pin_physport_from_pin(TARGET_RESET)->pcr[pin_physpin_from_pin(TARGET_RESET)].raw |= 0; /* clear isf */
statemachine(ev_reset);
}
if (pin_physport_from_pin(TARGET_LED)->pcr[pin_physpin_from_pin(TARGET_LED)].isf) {
pin_physport_from_pin(TARGET_LED)->pcr[pin_physpin_from_pin(TARGET_LED)].raw |= 0; /* clear isf */
statemachine(ev_led);
}
}
void
pin_mode(enum pin_id pin, enum pin_mode mode)
{
int pinnum = pin_physpin_from_pin(pin);
/* enable port clock */
SIM.scgc5.raw |= 1 << (pin_portnum_from_pin(pin) + 8);
struct PCR_t pcr = pin_physport_from_pin(pin)->pcr[pinnum];
if (mode & PIN_MODE_RESET) {
pcr.raw &= ~0xff;
pcr.mux = 0;
}
if (mode & PIN_MODE__SLEW) {
switch (mode & PIN_MODE__SLEW_MASK) {
case PIN_MODE_SLEW_FAST:
pcr.sre = 0;
break;
case PIN_MODE_SLEW_SLOW:
pcr.sre = 1;
break;
}
}
if (mode & PIN_MODE__PULL) {
switch (mode & PIN_MODE__PULL_MASK) {
case PIN_MODE_PULL_OFF:
pcr.pe = 0;
break;
case PIN_MODE_PULLDOWN:
pcr.pe = 1;
pcr.ps = PCR_PULLDOWN;
break;
case PIN_MODE_PULLUP:
pcr.pe = 1;
pcr.ps = PCR_PULLUP;
break;
}
}
if (mode & PIN_MODE__DRIVE) {
switch (mode & PIN_MODE__DRIVE_MASK) {
case PIN_MODE_DRIVE_LOW:
pcr.dse = 0;
break;
case PIN_MODE_DRIVE_HIGH:
pcr.dse = 1;
break;
}
}
if (mode & PIN_MODE__FILTER) {
switch (mode & PIN_MODE__FILTER_MASK) {
case PIN_MODE_FILTER_OFF:
pcr.pfe = 0;
break;
case PIN_MODE_FILTER_ON:
pcr.pfe = 1;
break;
}
}
if (mode & PIN_MODE__OPEN_DRAIN) {
switch (mode & PIN_MODE__OPEN_DRAIN_MASK) {
case PIN_MODE_OPEN_DRAIN_OFF:
pcr.ode = 0;
break;
case PIN_MODE_OPEN_DRAIN_ON:
pcr.ode = 1;
break;
}
}
if (mode & PIN_MODE__MUX) {
pcr.mux = (mode & PIN_MODE__MUX_MASK) >> 13; /* XXX */
}
