/*********************************************************************************************************
** Function name: pwrDown
** Descriptions: pwrDown
*********************************************************************************************************/
void xadow::pwrDown(unsigned long tSleep)
{
#if defined(__AVR_ATmega32U4__)
power_adc_disable();
power_usart0_disable();
power_spi_disable();
power_twi_disable();
power_timer1_disable();
power_timer2_disable();
power_timer3_disable();
power_usart1_disable();
power_usb_disable();
#endif
sleep.pwrDownMode(); //set sleep mode
sleep.sleepDelay(tSleep); //sleep for: sleepTime
}
void Low_Power::idle(Period_t period, ADC_t adc,
Timer4_t timer4, Timer3_t timer3,
Timer1_t timer1, Timer0_t timer0,
SPI_t spi, USART1_t usart1, TWI_t twi, usb_t usb)
{
if (adc == ADC_OFF)
{
ADCSRA &= ~(1 << ADEN);
power_adc_disable();
}
if (timer4 == TIMER4_OFF) power_timer4_disable();
if (timer3 == TIMER3_OFF) power_timer3_disable();
if (timer1 == TIMER1_OFF) power_timer1_disable();
if (timer0 == TIMER0_OFF) power_timer0_disable();
if (spi == SPI_OFF) power_spi_disable();
if (usart1 == USART1_OFF) power_usart1_disable();
if (twi == TWI_OFF) power_twi_disable();
if (usb == USB_OFF) power_usb_disable();
if (period != SLEEP_FOREVER)
{
wdt_enable(period);
WDTCSR |= (1 << WDIE);
}
lowPowerBodOn(SLEEP_MODE_IDLE);
if (adc == ADC_OFF)
{
power_adc_enable();
ADCSRA |= (1 << ADEN);
}
if (timer4 == TIMER4_OFF) power_timer4_enable();
if (timer3 == TIMER3_OFF) power_timer3_enable();
if (timer1 == TIMER1_OFF) power_timer1_enable();
if (timer0 == TIMER0_OFF) power_timer0_enable();
if (spi == SPI_OFF) power_spi_enable();
if (usart1 == USART1_OFF) power_usart1_enable();
if (twi == TWI_OFF) power_twi_enable();
if (usb == USB_OFF) power_usb_enable();
}
void MyArduboyAudio::off()
{
audio_enabled = false;
power_timer3_disable();
}
void Low_Power::idle(Period_t period, ADC_t adc, Timer5_t timer5,
Timer4_t timer4, Timer3_t timer3, Timer2_t timer2,
Timer1_t timer1, Timer0_t timer0, SPI_t spi,
USART3_t usart3, USART2_t usart2, USART1_t usart1,
USART0_t usart0, TWI_t twi)
{
// Temporary clock source variable
unsigned char clockSource = 0;
if (timer2 == TIMER2_OFF)
{
if (TCCR2B & CS22) clockSource |= (1 << CS22);
if (TCCR2B & CS21) clockSource |= (1 << CS21);
if (TCCR2B & CS20) clockSource |= (1 << CS20);
// Remove the clock source to shutdown Timer2
TCCR2B &= ~(1 << CS22);
TCCR2B &= ~(1 << CS21);
TCCR2B &= ~(1 << CS20);
power_timer2_disable();
}
if (adc == ADC_OFF)
{
ADCSRA &= ~(1 << ADEN);
power_adc_disable();
}
if (timer5 == TIMER5_OFF) power_timer5_disable();
if (timer4 == TIMER4_OFF) power_timer4_disable();
if (timer3 == TIMER3_OFF) power_timer3_disable();
if (timer1 == TIMER1_OFF) power_timer1_disable();
if (timer0 == TIMER0_OFF) power_timer0_disable();
if (spi == SPI_OFF) power_spi_disable();
if (usart3 == USART3_OFF) power_usart3_disable();
if (usart2 == USART2_OFF) power_usart2_disable();
if (usart1 == USART1_OFF) power_usart1_disable();
if (usart0 == USART0_OFF) power_usart0_disable();
if (twi == TWI_OFF) power_twi_disable();
if (period != SLEEP_FOREVER)
{
wdt_enable(period);
WDTCSR |= (1 << WDIE);
}
lowPowerBodOn(SLEEP_MODE_IDLE);
if (adc == ADC_OFF)
{
power_adc_enable();
ADCSRA |= (1 << ADEN);
}
if (timer2 == TIMER2_OFF)
{
if (clockSource & CS22) TCCR2B |= (1 << CS22);
if (clockSource & CS21) TCCR2B |= (1 << CS21);
if (clockSource & CS20) TCCR2B |= (1 << CS20);
power_timer2_enable();
}
if (timer5 == TIMER5_OFF) power_timer5_enable();
if (timer4 == TIMER4_OFF) power_timer4_enable();
if (timer3 == TIMER3_OFF) power_timer3_enable();
if (timer1 == TIMER1_OFF) power_timer1_enable();
if (timer0 == TIMER0_OFF) power_timer0_enable();
if (spi == SPI_OFF) power_spi_enable();
if (usart3 == USART3_OFF) power_usart3_enable();
if (usart2 == USART2_OFF) power_usart2_enable();
if (usart1 == USART1_OFF) power_usart1_enable();
if (usart0 == USART0_OFF) power_usart0_enable();
if (twi == TWI_OFF) power_twi_enable();
}
// Shutdown
void bg_pwr_down()
{
// execute sleep routine
if (bg_pwr_exec_sleep_routine_flag)
{
if (bg_pwr_on_sleep != NULL)
bg_pwr_on_sleep();
// the flag is needed because we want to execute sleep
// routine only when we go from pwr up to pwr down
bg_pwr_exec_sleep_routine_flag = 0;
}
//Shut off ADC, TWI, SPI, Timer0, Timer1, Timer2
ADCSRA &= ~(1<<ADEN); //Disable ADC
ACSR |= (1<<ACD); //Disable the analog comparator
DIDR0 = 0xFF; //Disable digital input buffers on all ADC0-ADC5 pins
DIDR1 = (1<<AIN1D)|(1<<AIN0D); //Disable digital input buffer on AIN1/0
power_twi_disable();
power_spi_disable();
power_usart0_disable();
power_timer0_disable();
power_timer1_disable();
power_timer2_disable();
#if defined(__AVR_ATmega1284P__)
power_timer3_disable();
#endif
//Power down various bits of hardware to lower power usage
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_mode();
/*********/
/* SLEEP */
/*********/
// The processor wakes up back here after interrupt
//Turn on ADC, TWI, SPI, Timer0, Timer1, Timer2
ADCSRA |= (1<<ADEN); // Enable ADC
ACSR &= ~(1<<ACD); // Enable the analog comparator
// this should be set to reflect real usage of analog pins
DIDR0 = 0x00; // Enable digital input buffers on all ADC0-ADC5 pins
DIDR1 &= ~(1<<AIN1D)|(1<<AIN0D); // Enable digital input buffer on AIN1/0
power_twi_enable();
power_spi_enable();
power_usart0_enable();
power_timer0_enable();
power_timer1_enable();
power_timer2_enable();
#if defined(__AVR_ATmega1284P__)
power_timer3_enable();
#endif
// check button press time and handle state
unsigned long start = millis();
while ( (ellapsed_millis(start) < BG_PWR_BUTTON_TIME) && (digitalRead(bg_pwr_switch_pin) == HIGH) );
// if the button is pressed continuously for 2 seconds, swap to on state
if (ellapsed_millis(start) >= BG_PWR_BUTTON_TIME)
bg_pwr_state = BG_STATE_PWR_UP;
// lower the button flag
bg_pwr_button_pressed_flag = 0;
// execute wake up routine only if we really woke up
if (bg_pwr_state == BG_STATE_PWR_UP || sd_reader_interrupted)
{
// execute wake up routine if any is defined
if (bg_pwr_on_wakeup != NULL)
bg_pwr_on_wakeup();
// next time we sleep execute sleep routine
bg_pwr_exec_sleep_routine_flag = 1;
}
}