1 files changed, 0 insertions, 124 deletions
diff --git a/tmk_core/common/avr/sleep_led.c b/tmk_core/common/avr/sleep_led.c
deleted file mode 100644
index 9a3b52abe5..0000000000
--- a/tmk_core/common/avr/sleep_led.c
+++ /dev/null
@@ -1,124 +0,0 @@
-#include <stdint.h>
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <avr/pgmspace.h>
-#include "led.h"
-#include "sleep_led.h"
-
-#ifndef SLEEP_LED_TIMER
-#    define SLEEP_LED_TIMER 1
-#endif
-
-#if SLEEP_LED_TIMER == 1
-#    define TCCRxB TCCR1B
-#    define TIMERx_COMPA_vect TIMER1_COMPA_vect
-#    if defined(__AVR_ATmega32A__)  // This MCU has only one TIMSK register
-#        define TIMSKx TIMSK
-#    else
-#        define TIMSKx TIMSK1
-#    endif
-#    define OCIExA OCIE1A
-#    define OCRxx OCR1A
-#elif SLEEP_LED_TIMER == 3
-#    define TCCRxB TCCR3B
-#    define TIMERx_COMPA_vect TIMER3_COMPA_vect
-#    define TIMSKx TIMSK3
-#    define OCIExA OCIE3A
-#    define OCRxx OCR3A
-#else
-error("Invalid SLEEP_LED_TIMER config")
-#endif
-
-/* 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)
-
-/** \brief Sleep LED initialization
- *
- * FIXME: needs doc
- */
-void sleep_led_init(void) {
-    /* Timer1 setup */
-    /* CTC mode */
-    TCCRxB |= _BV(WGM12);
-    /* Clock selelct: clk/1 */
-    TCCRxB |= _BV(CS10);
-    /* Set TOP value */
-    uint8_t sreg = SREG;
-    cli();
-    OCRxx = SLEEP_LED_TIMER_TOP;
-    SREG  = sreg;
-}
-
-/** \brief Sleep LED enable
- *
- * FIXME: needs doc
- */
-void sleep_led_enable(void) {
-    /* Enable Compare Match Interrupt */
-    TIMSKx |= _BV(OCIExA);
-}
-
-/** \brief Sleep LED disable
- *
- * FIXME: needs doc
- */
-void sleep_led_disable(void) {
-    /* Disable Compare Match Interrupt */
-    TIMSKx &= ~_BV(OCIExA);
-}
-
-/** \brief Sleep LED toggle
- *
- * FIXME: needs doc
- */
-void sleep_led_toggle(void) {
-    /* Disable Compare Match Interrupt */
-    TIMSKx ^= _BV(OCIExA);
-}
-
-/** \brief Breathing Sleep LED brighness(PWM On period) table
- *
- * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
- *
- * https://www.wolframalpha.com/input/?i=sin%28x%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(TIMERx_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);
-    }
-}