OPT_DEFS += -DMOUSE_ENABLE
endif
+ifdef SLEEP_LED_ENABLE
+ SRC += $(COMMON_DIR)/sleep_led.c
+ OPT_DEFS += -DSLEEP_LED_ENABLE
+endif
+
+
# Search Path
VPATH += $(TOP_DIR)/common
--- /dev/null
+#include <stdint.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include "led.h"
+#include "sleep_led.h"
+
+/* Software PWM
+ * ______ ______ __
+ * | ON |___OFF___| ON |___OFF___| ....
+ * |<-------------->|<-------------->|<- ....
+ * PWM period PWM period
+ *
+ * 256 interrupts/period[resolution]
+ * 64 periods/second[frequency]
+ * 256*64 interrupts/second
+ * F_CPU/(256*64) clocks/interrupt
+ */
+#define SLEEP_LED_TIMER_TOP F_CPU/(256*64)
+
+void sleep_led_init(void)
+{
+ /* Timer1 setup */
+ /* CTC mode */
+ TCCR1B |= _BV(WGM12);
+ /* Clock selelct: clk/1 */
+ TCCR1B |= _BV(CS10);
+ /* Set TOP value */
+ uint8_t sreg = SREG;
+ cli();
+ OCR1AH = (SLEEP_LED_TIMER_TOP>>8)&0xff;
+ OCR1AL = SLEEP_LED_TIMER_TOP&0xff;
+ SREG = sreg;
+}
+
+void sleep_led_enable(void)
+{
+ /* Enable Compare Match Interrupt */
+ TIMSK1 |= _BV(OCIE1A);
+}
+
+void sleep_led_disable(void)
+{
+ /* Disable Compare Match Interrupt */
+ TIMSK1 &= ~_BV(OCIE1A);
+}
+
+
+/* Breathing Sleep LED brighness(PWM On period) table
+ * (32[steps] * 8[duration]) / 64[PWM periods/s] = 4 second breath cycle
+ */
+static const uint8_t breathing_table[32] PROGMEM = {
+ 0, 0, 0, 2, 9, 21, 37, 56, 78, 127, 151, 175, 197, 216, 232, 244,
+ 254, 244, 216, 197, 175, 151, 127, 78, 56, 37, 21, 9, 2, 0, 0, 0
+};
+
+ISR(TIMER1_COMPA_vect)
+{
+ /* Software PWM
+ * timer:1111 1111 1111 1111
+ * \----/\-/ \-------/+--- count(0-255)
+ * | +--------------- duration of step(8)
+ * +-------------------- index of step table(0-31)
+ */
+ static union {
+ uint16_t row;
+ struct {
+ uint8_t count:8;
+ uint8_t duration:3;
+ uint8_t index:5;
+ } pwm;
+ } timer = { .row = 0 };
+
+ timer.row++;
+
+ // LED on
+ if (timer.pwm.count == 0) {
+ led_set(1<<USB_LED_CAPS_LOCK);
+ }
+ // LED off
+ if (timer.pwm.count == pgm_read_byte(&breathing_table[timer.pwm.index])) {
+ led_set(0);
+ }
+}
--- /dev/null
+#ifndef SLEEP_LED_H
+#define SLEEP_LED_H
+
+#define NO_SUSPEND_POWER_DOWN
+
+void sleep_led_init(void);
+void sleep_led_enable(void);
+void sleep_led_disable(void);
+
+#endif
MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
CONSOLE_ENABLE = yes # Console for debug(+400)
+SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
#NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
this software.
*/
+#include <avr/sleep.h>
+#include <avr/wdt.h>
#include "report.h"
#include "host.h"
#include "host_driver.h"
#include "keyboard.h"
+#include "action.h"
+#include "matrix.h"
+#include "led.h"
#include "sendchar.h"
#include "debug.h"
+#ifdef SLEEP_LED_ENABLE
+#include "sleep_led.h"
+#endif
#include "descriptor.h"
#include "lufa.h"
/*******************************************************************************
* USB Events
******************************************************************************/
-/** Event handler for the USB_Connect event. */
+/*
+ * Event Order of Plug in:
+ * 0) EVENT_USB_Device_Connect
+ * 1) EVENT_USB_Device_Suspend
+ * 2) EVENT_USB_Device_Reset
+ * 3) EVENT_USB_Device_Wake
+*/
void EVENT_USB_Device_Connect(void)
{
+ led_set(0x1f); // all on
}
-/** Event handler for the USB_Disconnect event. */
void EVENT_USB_Device_Disconnect(void)
{
}
+void EVENT_USB_Device_Reset(void)
+{
+}
+
+void EVENT_USB_Device_Suspend()
+{
+#ifdef SLEEP_LED_ENABLE
+ sleep_led_enable();
+#endif
+}
+
+void EVENT_USB_Device_WakeUp()
+{
+ // initialize
+ matrix_init();
+ clear_keyboard();
+
+#ifdef SLEEP_LED_ENABLE
+ sleep_led_disable();
+#endif
+ led_set(host_keyboard_leds());
+}
+
void EVENT_USB_Device_StartOfFrame(void)
{
Console_Task();
USB_Device_EnableSOFEvents();
}
+
+static bool wakeup_condition(void)
+{
+ matrix_scan();
+ for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
+ if (matrix_get_row(r)) return true;
+ }
+ return false;
+}
+
+#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" \
+)
+
int main(void) __attribute__ ((weak));
int main(void)
{
SetupHardware();
keyboard_init();
host_set_driver(&lufa_driver);
+#ifdef SLEEP_LED_ENABLE
+ sleep_led_init();
+#endif
sei();
- // TODO: can't print here
- debug("LUFA init\n");
while (1) {
+ // while suspend
+ while (USB_DeviceState == DEVICE_STATE_Suspended) {
+#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
+
+ // Send request of USB Wakeup from Suspend to host
+ if (USB_Device_RemoteWakeupEnabled) {
+ if (wakeup_condition()) {
+ USB_Device_SendRemoteWakeup();
+ }
+ }
+ }
+
keyboard_task();
#if !defined(INTERRUPT_CONTROL_ENDPOINT)
#endif
}
}
+
+#ifndef NO_SUSPEND_POWER_DOWN
+/* watchdog timeout */
+ISR(WDT_vect)
+{
+ /* wakeup from MCU sleep mode */
+/*
+ // blink LED
+ static uint8_t led_state = 0;
+ static uint8_t led_count = 0;
+ led_count++;
+ if ((led_count & 0x07) == 0) {
+ led_set((led_state ^= (1<<USB_LED_CAPS_LOCK)));
+ }
+*/
+}
+#endif
HCoop / jackhill / qmk / firmware.git / commitdiff