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#include <stdbool.h>
#include <avr/sleep.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include "matrix.h"
#include "action.h"
#include "suspend_avr.h"
#include "suspend.h"
#include "timer.h"
#include "led.h"
#include "host.h"
#ifdef PROTOCOL_LUFA
# include "lufa.h"
#endif
#ifdef BACKLIGHT_ENABLE
# include "backlight.h"
#endif
#ifdef AUDIO_ENABLE
# include "audio.h"
#endif /* AUDIO_ENABLE */
#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
# include "rgblight.h"
extern rgblight_config_t rgblight_config;
static bool rgblight_enabled;
static bool is_suspended;
#endif
/** \brief Suspend idle
*
* FIXME: needs doc
*/
void suspend_idle(uint8_t time) {
cli();
set_sleep_mode(SLEEP_MODE_IDLE);
sleep_enable();
sei();
sleep_cpu();
sleep_disable();
}
// TODO: This needs some cleanup
/** \brief Run keyboard level Power down
*
* FIXME: needs doc
*/
__attribute__((weak)) void suspend_power_down_user(void) {}
/** \brief Run keyboard level Power down
*
* FIXME: needs doc
*/
__attribute__((weak)) void suspend_power_down_kb(void) { suspend_power_down_user(); }
#ifndef NO_SUSPEND_POWER_DOWN
/** \brief Power down MCU with watchdog timer
*
* wdto: watchdog timer timeout defined in <avr/wdt.h>
* WDTO_15MS
* WDTO_30MS
* WDTO_60MS
* WDTO_120MS
* WDTO_250MS
* WDTO_500MS
* WDTO_1S
* WDTO_2S
* WDTO_4S
* WDTO_8S
*/
static uint8_t wdt_timeout = 0;
/** \brief Power down
*
* FIXME: needs doc
*/
static void power_down(uint8_t wdto) {
# ifdef PROTOCOL_LUFA
if (USB_DeviceState == DEVICE_STATE_Configured) return;
# endif
wdt_timeout = wdto;
// Watchdog Interrupt Mode
wdt_intr_enable(wdto);
# ifdef BACKLIGHT_ENABLE
backlight_set(0);
# endif
// Turn off LED indicators
uint8_t leds_off = 0;
# if defined(BACKLIGHT_CAPS_LOCK) && defined(BACKLIGHT_ENABLE)
if (is_backlight_enabled()) {
// Don't try to turn off Caps Lock indicator as it is backlight and backlight is already off
leds_off |= (1 << USB_LED_CAPS_LOCK);
}
# endif
led_set(leds_off);
# ifdef AUDIO_ENABLE
// This sometimes disables the start-up noise, so it's been disabled
// stop_all_notes();
# endif /* AUDIO_ENABLE */
# if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
rgblight_timer_disable();
if (!is_suspended) {
is_suspended = true;
rgblight_enabled = rgblight_config.enable;
rgblight_disable_noeeprom();
}
# endif
suspend_power_down_kb();
// TODO: more power saving
// See PicoPower application note
// - I/O port input with pullup
// - prescale clock
// - BOD disable
// - Power Reduction Register PRR
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sei();
sleep_cpu();
sleep_disable();
// Disable watchdog after sleep
wdt_disable();
}
#endif
/** \brief Suspend power down
*
* FIXME: needs doc
*/
void suspend_power_down(void) {
suspend_power_down_kb();
#ifndef NO_SUSPEND_POWER_DOWN
power_down(WDTO_15MS);
#endif
}
__attribute__((weak)) void matrix_power_up(void) {}
__attribute__((weak)) void matrix_power_down(void) {}
bool suspend_wakeup_condition(void) {
matrix_power_up();
matrix_scan();
matrix_power_down();
for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
if (matrix_get_row(r)) return true;
}
return false;
}
/** \brief run user level code immediately after wakeup
*
* FIXME: needs doc
*/
__attribute__((weak)) void suspend_wakeup_init_user(void) {}
/** \brief run keyboard level code immediately after wakeup
*
* FIXME: needs doc
*/
__attribute__((weak)) void suspend_wakeup_init_kb(void) { suspend_wakeup_init_user(); }
/** \brief run immediately after wakeup
*
* FIXME: needs doc
*/
void suspend_wakeup_init(void) {
// clear keyboard state
clear_keyboard();
#ifdef BACKLIGHT_ENABLE
backlight_init();
#endif
led_set(host_keyboard_leds());
#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
is_suspended = false;
if (rgblight_enabled) {
rgblight_enable_noeeprom();
}
rgblight_timer_enable();
#endif
suspend_wakeup_init_kb();
}
#ifndef NO_SUSPEND_POWER_DOWN
/* watchdog timeout */
ISR(WDT_vect) {
// compensate timer for sleep
switch (wdt_timeout) {
case WDTO_15MS:
timer_count += 15 + 2; // WDTO_15MS + 2(from observation)
break;
default:;
}
}
#endif
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