1 files changed, 0 insertions, 95 deletions
diff --git a/common/sleep_led.c b/common/sleep_led.c
deleted file mode 100644
index dab3eb0f3..000000000
--- a/common/sleep_led.c
+++ /dev/null
@@ -1,95 +0,0 @@
-#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);
-}
-
-void sleep_led_toggle(void)
-{
-    /* Disable Compare Match Interrupt */
-    TIMSK1 ^= _BV(OCIE1A);
-}
-
-
-/* Breathing Sleep LED brighness(PWM On period) table
- * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
- *
- * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63
- * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i }
- */
-static const uint8_t breathing_table[64] PROGMEM = {
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10,
-15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252,
-255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23,
-15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-ISR(TIMER1_COMPA_vect)
-{
-    /* Software PWM
-     * timer:1111 1111 1111 1111
-     *       \_____/\/ \_______/____  count(0-255)
-     *          \    \______________  duration of step(4)
-     *           \__________________  index of step table(0-63)
-     */
-    static union {
-        uint16_t row;
-        struct {
-            uint8_t count:8;
-            uint8_t duration:2;
-            uint8_t index:6;
-        } 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);
-    }
-}