1 files changed, 0 insertions, 179 deletions
diff --git a/quantum/backlight/backlight_timer.c b/quantum/backlight/backlight_timer.c
deleted file mode 100644
index 82fb6a6a83..0000000000
--- a/quantum/backlight/backlight_timer.c
+++ /dev/null
@@ -1,179 +0,0 @@
-#include "quantum.h"
-#include "backlight.h"
-#include "backlight_driver_common.h"
-#include "debug.h"
-
-#ifndef BACKLIGHT_GPT_DRIVER
-#    define BACKLIGHT_GPT_DRIVER GPTD15
-#endif
-
-// Platform specific implementations
-static void     backlight_timer_configure(bool enable);
-static void     backlight_timer_set_duty(uint16_t duty);
-static uint16_t backlight_timer_get_duty(void);
-
-// See http://jared.geek.nz/2013/feb/linear-led-pwm
-static uint16_t cie_lightness(uint16_t v) {
-    if (v <= 5243)    // if below 8% of max
-        return v / 9; // same as dividing by 900%
-    else {
-        uint32_t y = (((uint32_t)v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare
-        // to get a useful result with integer division, we shift left in the expression above
-        // and revert what we've done again after squaring.
-        y = y * y * y >> 8;
-        if (y > 0xFFFFUL) // prevent overflow
-            return 0xFFFFU;
-        else
-            return (uint16_t)y;
-    }
-}
-
-void backlight_init_ports(void) {
-    backlight_pins_init();
-
-    backlight_set(get_backlight_level());
-
-#ifdef BACKLIGHT_BREATHING
-    if (is_backlight_breathing()) {
-        breathing_enable();
-    }
-#endif
-}
-
-void backlight_set(uint8_t level) {
-    if (level > BACKLIGHT_LEVELS) level = BACKLIGHT_LEVELS;
-
-    backlight_pins_off();
-
-    backlight_timer_set_duty(cie_lightness(0xFFFFU / BACKLIGHT_LEVELS * level));
-    backlight_timer_configure(level != 0);
-}
-
-static void backlight_timer_top(void) {
-#ifdef BACKLIGHT_BREATHING
-    if (is_breathing()) {
-        breathing_task();
-    }
-#endif
-
-    if (backlight_timer_get_duty() > 256) {
-        backlight_pins_on();
-    }
-}
-
-static void backlight_timer_cmp(void) {
-    backlight_pins_off();
-}
-
-void backlight_task(void) {}
-
-#ifdef BACKLIGHT_BREATHING
-#    define BREATHING_STEPS 128
-
-static bool     breathing         = false;
-static uint16_t breathing_counter = 0;
-
-/* To generate breathing curve in python:
- * from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)]
- */
-static const uint8_t breathing_table[BREATHING_STEPS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-// Use this before the cie_lightness function.
-static inline uint16_t scale_backlight(uint16_t v) {
-    return v / BACKLIGHT_LEVELS * get_backlight_level();
-}
-
-void breathing_task(void) {
-    uint8_t  breathing_period = get_breathing_period();
-    uint16_t interval         = (uint16_t)breathing_period * 256 / BREATHING_STEPS;
-    // resetting after one period to prevent ugly reset at overflow.
-    breathing_counter = (breathing_counter + 1) % (breathing_period * 256);
-    uint8_t index     = breathing_counter / interval % BREATHING_STEPS;
-
-    // printf("index:%u\n", index);
-
-    backlight_timer_set_duty(cie_lightness(scale_backlight((uint16_t)breathing_table[index] * 256)));
-}
-
-bool is_breathing(void) {
-    return breathing;
-}
-
-void breathing_enable(void) {
-    breathing_counter = 0;
-    breathing         = true;
-}
-void breathing_disable(void) {
-    breathing = false;
-}
-
-void breathing_pulse(void) {
-    backlight_set(is_backlight_enabled() ? 0 : BACKLIGHT_LEVELS);
-    wait_ms(10);
-    backlight_set(is_backlight_enabled() ? get_backlight_level() : 0);
-}
-#endif
-
-#ifdef PROTOCOL_CHIBIOS
-// On Platforms where timers fire every tick and have no capture/top events
-//   - fake event in the normal timer callback
-uint16_t s_duty = 0;
-
-static void timerCallback(void) {
-    /* Software PWM
-     * timer:1111 1111 1111 1111
-     *       \______/| \_______/____  count(0-255)
-     *          \    \______________  unused(1)
-     *           \__________________  index of step table(0-127)
-     */
-
-    // this works for cca 65536 irqs/sec
-    static union {
-        uint16_t raw;
-        struct {
-            uint16_t count : 8;
-            uint8_t  dummy : 1;
-            uint8_t  index : 7;
-        } pwm;
-    } timer = {.raw = 0};
-
-    timer.raw++;
-
-    if (timer.pwm.count == 0) {
-        // LED on
-        backlight_timer_top();
-    } else if (timer.pwm.count == (s_duty / 256)) {
-        // LED off
-        backlight_timer_cmp();
-    }
-}
-
-static void backlight_timer_set_duty(uint16_t duty) {
-    s_duty = duty;
-}
-static uint16_t backlight_timer_get_duty(void) {
-    return s_duty;
-}
-
-// ChibiOS - Map GPT timer onto Software PWM
-static void gptTimerCallback(GPTDriver *gptp) {
-    (void)gptp;
-    timerCallback();
-}
-
-static void backlight_timer_configure(bool enable) {
-    static const GPTConfig gptcfg = {1000000, gptTimerCallback, 0, 0};
-
-    static bool s_init = false;
-    if (!s_init) {
-        gptStart(&BACKLIGHT_GPT_DRIVER, &gptcfg);
-        s_init = true;
-    }
-
-    if (enable) {
-        gptStartContinuous(&BACKLIGHT_GPT_DRIVER, gptcfg.frequency / 0xFFFF);
-    } else {
-        gptStopTimer(&BACKLIGHT_GPT_DRIVER);
-    }
-}
-#endif