@@ -10,6 +10,7 @@ SRC += $(COMMON_DIR)/host.c \ | |||
$(COMMON_DIR)/print.c \ | |||
$(COMMON_DIR)/debug.c \ | |||
$(COMMON_DIR)/bootloader.c \ | |||
$(COMMON_DIR)/suspend.c \ | |||
$(COMMON_DIR)/util.c | |||
@@ -58,6 +59,7 @@ endif | |||
ifdef SLEEP_LED_ENABLE | |||
SRC += $(COMMON_DIR)/sleep_led.c | |||
OPT_DEFS += -DSLEEP_LED_ENABLE | |||
OPT_DEFS += -DNO_SUSPEND_POWER_DOWN | |||
endif | |||
@@ -1,10 +1,21 @@ | |||
#ifndef SLEEP_LED_H | |||
#define SLEEP_LED_H | |||
#define NO_SUSPEND_POWER_DOWN | |||
#ifdef SLEEP_LED_ENABLE | |||
void sleep_led_init(void); | |||
void sleep_led_enable(void); | |||
void sleep_led_disable(void); | |||
void sleep_led_toggle(void); | |||
#else | |||
#define sleep_led_init() | |||
#define sleep_led_enable() | |||
#define sleep_led_disable() | |||
#define sleep_led_toggle() | |||
#endif | |||
#endif |
@@ -0,0 +1,51 @@ | |||
#include "suspend.h" | |||
#include "matrix.h" | |||
#include "action.h" | |||
void suspend_power_down(void) | |||
{ | |||
#ifndef NO_SUSPEND_POWER_DOWN | |||
// Enable watchdog to wake from MCU sleep | |||
cli(); | |||
wdt_reset(); | |||
// Watchdog Interrupt and System Reset Mode | |||
//wdt_enable(WDTO_1S); | |||
//WDTCSR |= _BV(WDIE); | |||
// Watchdog Interrupt Mode | |||
wdt_intr_enable(WDTO_120MS); | |||
// TODO: more power saving | |||
// See PicoPower application note | |||
// - I/O port input with pullup | |||
// - prescale clock | |||
// - BOD disable | |||
// - Power Reduction Register PRR | |||
// sleep in power down mode | |||
set_sleep_mode(SLEEP_MODE_PWR_DOWN); | |||
sleep_enable(); | |||
sei(); | |||
sleep_cpu(); | |||
sleep_disable(); | |||
// Disable watchdog after sleep | |||
wdt_disable(); | |||
#endif | |||
} | |||
bool suspend_wakeup_condition(void) | |||
{ | |||
matrix_scan(); | |||
for (uint8_t r = 0; r < MATRIX_ROWS; r++) { | |||
if (matrix_get_row(r)) return true; | |||
} | |||
return false; | |||
} | |||
void suspend_wakeup_init(void) | |||
{ | |||
matrix_init(); | |||
clear_keyboard(); | |||
} |
@@ -0,0 +1,32 @@ | |||
#ifndef SUSPEND_H | |||
#define SUSPEND_H | |||
#include <stdint.h> | |||
#include <stdbool.h> | |||
#include <avr/sleep.h> | |||
#include <avr/wdt.h> | |||
#include <avr/interrupt.h> | |||
#define wdt_intr_enable(value) \ | |||
__asm__ __volatile__ ( \ | |||
"in __tmp_reg__,__SREG__" "\n\t" \ | |||
"cli" "\n\t" \ | |||
"wdr" "\n\t" \ | |||
"sts %0,%1" "\n\t" \ | |||
"out __SREG__,__tmp_reg__" "\n\t" \ | |||
"sts %0,%2" "\n\t" \ | |||
: /* no outputs */ \ | |||
: "M" (_SFR_MEM_ADDR(_WD_CONTROL_REG)), \ | |||
"r" (_BV(_WD_CHANGE_BIT) | _BV(WDE)), \ | |||
"r" ((uint8_t) ((value & 0x08 ? _WD_PS3_MASK : 0x00) | \ | |||
_BV(WDIE) | (value & 0x07)) ) \ | |||
: "r0" \ | |||
) | |||
void suspend_power_down(void); | |||
bool suspend_wakeup_condition(void); | |||
void suspend_wakeup_init(void); | |||
#endif |