* @author David Gay
*/
-module HplAtm128AdcC {
+configuration HplAtm128AdcC {
provides interface HplAtm128Adc;
}
implementation {
- //=== Direct read of HW registers. =================================
- async command Atm128Admux_t HplAtm128Adc.getAdmux() {
- return *(Atm128Admux_t*)&ADMUX;
- }
- async command Atm128Adcsra_t HplAtm128Adc.getAdcsra() {
- return *(Atm128Adcsra_t*)&ADCSRA;
- }
- async command uint16_t HplAtm128Adc.getValue() {
- return ADC;
- }
+ components HplAtm128AdcP, McuSleepC;
- DEFINE_UNION_CAST(Admux2int, Atm128Admux_t, uint8_t);
- DEFINE_UNION_CAST(Adcsra2int, Atm128Adcsra_t, uint8_t);
-
- //=== Direct write of HW registers. ================================
- async command void HplAtm128Adc.setAdmux( Atm128Admux_t x ) {
- ADMUX = Admux2int(x);
- }
- async command void HplAtm128Adc.setAdcsra( Atm128Adcsra_t x ) {
- ADCSRA = Adcsra2int(x);
- }
-
- async command void HplAtm128Adc.setPrescaler(uint8_t scale){
- Atm128Adcsra_t current_val = call HplAtm128Adc.getAdcsra();
- current_val.adif = FALSE;
- current_val.adps = scale;
- call HplAtm128Adc.setAdcsra(current_val);
- }
-
- // Individual bit manipulation. These all clear any pending A/D interrupt.
- // It's not clear these are that useful...
- async command void HplAtm128Adc.enableAdc() { SET_BIT(ADCSRA, ADEN); }
- async command void HplAtm128Adc.disableAdc() { CLR_BIT(ADCSRA, ADEN); }
- async command void HplAtm128Adc.enableInterruption() { SET_BIT(ADCSRA, ADIE); }
- async command void HplAtm128Adc.disableInterruption() { CLR_BIT(ADCSRA, ADIE); }
- async command void HplAtm128Adc.setContinuous() { SET_BIT(ADCSRA, ADFR); }
- async command void HplAtm128Adc.setSingle() { CLR_BIT(ADCSRA, ADFR); }
- async command void HplAtm128Adc.resetInterrupt() { SET_BIT(ADCSRA, ADIF); }
- async command void HplAtm128Adc.startConversion() { SET_BIT(ADCSRA, ADSC); }
-
-
- /* A/D status checks */
- async command bool HplAtm128Adc.isEnabled() {
- return (call HplAtm128Adc.getAdcsra()).aden;
- }
-
- async command bool HplAtm128Adc.isStarted() {
- return (call HplAtm128Adc.getAdcsra()).adsc;
- }
-
- async command bool HplAtm128Adc.isComplete() {
- return (call HplAtm128Adc.getAdcsra()).adif;
- }
-
- /* A/D interrupt handlers. Signals dataReady event with interrupts enabled */
- AVR_ATOMIC_HANDLER(SIG_ADC) {
- uint16_t data = call HplAtm128Adc.getValue();
-
- __nesc_enable_interrupt();
- signal HplAtm128Adc.dataReady(data);
- }
-
- default async event void HplAtm128Adc.dataReady(uint16_t done) { }
-
- async command bool HplAtm128Adc.cancel() {
- /* This is tricky */
- atomic
- {
- Atm128Adcsra_t oldSr = call HplAtm128Adc.getAdcsra(), newSr;
-
- /* To cancel a conversion, first turn off ADEN, then turn off
- ADSC. We also cancel any pending interrupt.
- Finally we reenable the ADC.
- */
- newSr = oldSr;
- newSr.aden = FALSE;
- newSr.adif = TRUE; /* This clears a pending interrupt... */
- newSr.adie = FALSE; /* We don't want to start sampling again at the
- next sleep */
- call HplAtm128Adc.setAdcsra(newSr);
- newSr.adsc = FALSE;
- call HplAtm128Adc.setAdcsra(newSr);
- newSr.aden = TRUE;
- call HplAtm128Adc.setAdcsra(newSr);
-
- return oldSr.adif || oldSr.adsc;
- }
- }
+ HplAtm128Adc = HplAtm128AdcP;
+ HplAtm128AdcP.McuPowerState -> McuSleepC;
}