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Add SLEEP and DOZE functions to the menu.

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Give serial commands the same defines as in the 1284p for grepping.
This commit is contained in:
dak664 2010-12-18 20:35:58 +00:00
parent 8f76c82433
commit 555fab59a3
9 changed files with 185 additions and 77 deletions
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82
platform/avr-ravenlcd/sleep.c
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@ -41,9 +41,14 @@
#include <avr/interrupt.h>
#include <avr/sleep.h>
#include <avr/wdt.h>
#include <util/delay.h>
#include <stdbool.h>
#include "main.h"
#include "sleep.h"
#include "uart.h"
#include "key.h"
#include "timer.h"
#include "lcd.h" //temp
/**
* \addtogroup lcd
@ -55,53 +60,79 @@
/**
* \brief Prepares for and executes sleep. This function sets up the
* processor to enter sleep mode, and to wake up when the joystick
* button (PE2/PCINT2) is pressed.
* button (PE2/PCINT2) is pressed or after the specified interval.
*
* \param howlong Seconds to sleep, 0=until button pushed
*/
void
sleep_now(void)
sleep_now(int howlong)
{
/* Disable watchdog */
/* Disable watchdog (not currently used elsewhere) */
wdt_disable();
/* Setup sleep mode */
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
if (howlong==0) {
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
MCUCR |= (1<<JTD); //Disable JTAG so clock can stop
} else {
set_sleep_mode(SLEEP_MODE_PWR_SAVE);
/* Using 8 bit TIMER2 */
TCNT2 = 0;
TCCR2A = (1<<CS22)|(1<<CS21)|(1<<CS20); //Prescale by 1024
TIMSK2 = (1<<TOIE2); //Enable overflow interrupt
howlong*=30; //which is approximately 30 Hz
/* Enable wakeup interrupt */
/* Using 16 bit TIMER1, which takes a bit more power
timer_stop; //Disable interrupt
timer_init; //make sure initialized for 1 second
timer_start; //Start timer, enable interrupt
*/
}
/* Enable pin change 0 wakeup interrupt */
EIMSK |= (1 << PCIE0);
/* Enable PCINT2 as interrupt */
/* Select joystick button input pin */
PCMSK0 |= (1 << PCINT2);
/* Go to sleep now */
sleep_mode();
/* Sleep until timeout or button pushed */
while (ENTER_PORT & (1<<ENTER_PIN)) {
sleep_mode();
if (!howlong--) break;
}
/* Disable the interrupt for the enter button */
/* Disable the interrupts for the enter button and TIMER2 */
EIMSK &= ~(1 << PCIE0);
PCMSK0&= ~(1 <<PCINT2);
TIMSK2&= ~(1 << TOIE2);
}
/*---------------------------------------------------------------------------*/
/**
* \brief This will send a single character forever to the ATmega1284p to cause a wakeup.
* \brief This will send a wakeup command to ATmega1284p
* It may already be awake, if not it will respond during the next wake cycle
* Upon receiving the command it will return an acknowledgement frame
*
* \brief This will send a single character forever to the ATmega1284p to cause a wakeup.
* The 1284p polls the USART for new data during each sleep cycle. Upon receiving a
* character from the user LCD, it will wake up and send an acknowledgement frame.
*/
void
sleep_wakeup(void)
{
/* First, clear the input buffer and get any chars waiting */
while(rx_char_ready()){
uart_get_char_rx();
lcd_puts_P(PSTR("WAKE 1284p"));
/* Flood 1284p with wake commands until it responds*/
for(;;){
uart_serial_send_frame(SEND_WAKE,0,0);
_delay_us(1000);
if (rx_char_ready())
break;
}
/* Flood 1284p with serial chars until it responds. */
for(;;){
uart_send_byte('x');
if (rx_char_ready())
break;
}
/* Get a frame back */
uart_serial_rcv_frame(true);
uart_serial_rcv_frame(true);
}
/*---------------------------------------------------------------------------*/
@ -115,6 +146,17 @@ ISR
(PCINT0_vect)
{
}
/*---------------------------------------------------------------------------*/
/**
* \brief This is the timer2 overflow interrupt. When this interrupt fires,
* the CPU will wake.
*/
ISR
(TIMER2_OVF_vect)
{
}
/** \} */