Relocate backlight drivers (#21444)

6 files changed, 2 insertions, 881 deletions

diff --git a/quantum/backlight/backlight.c b/quantum/backlight/backlight.c
index 52ec086bb0..9d9f944f5d 100644
--- a/quantum/backlight/backlight.c
+++ b/quantum/backlight/backlight.c
@@ -15,7 +15,6 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "quantum.h"
 #include "backlight.h"
 #include "eeprom.h"
 #include "eeconfig.h"
diff --git a/quantum/backlight/backlight_avr.c b/quantum/backlight/backlight_avr.c
deleted file mode 100644
index 474e0a86f5..0000000000
--- a/quantum/backlight/backlight_avr.c
+++ /dev/null
@@ -1,473 +0,0 @@
-#include "quantum.h"
-#include "backlight.h"
-#include "backlight_driver_common.h"
-#include "debug.h"
-
-// Maximum duty cycle limit
-#ifndef BACKLIGHT_LIMIT_VAL
-#    define BACKLIGHT_LIMIT_VAL 255
-#endif
-
-// This logic is a bit complex, we support 3 setups:
-//
-//   1. Hardware PWM when backlight is wired to a PWM pin.
-//      Depending on this pin, we use a different output compare unit.
-//   2. Software PWM with hardware timers, but the used timer
-//      depends on the Audio setup (Audio wins over Backlight).
-//   3. Full software PWM, driven by the matrix scan, if both timers are used by Audio.
-
-#if (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) && (BACKLIGHT_PIN == B5 || BACKLIGHT_PIN == B6 || BACKLIGHT_PIN == B7)
-#    define HARDWARE_PWM
-#    define ICRx ICR1
-#    define TCCRxA TCCR1A
-#    define TCCRxB TCCR1B
-#    define TIMERx_OVF_vect TIMER1_OVF_vect
-#    define TIMSKx TIMSK1
-#    define TOIEx TOIE1
-
-#    if BACKLIGHT_PIN == B5
-#        define COMxx0 COM1A0
-#        define COMxx1 COM1A1
-#        define OCRxx OCR1A
-#    elif BACKLIGHT_PIN == B6
-#        define COMxx0 COM1B0
-#        define COMxx1 COM1B1
-#        define OCRxx OCR1B
-#    elif BACKLIGHT_PIN == B7
-#        define COMxx0 COM1C0
-#        define COMxx1 COM1C1
-#        define OCRxx OCR1C
-#    endif
-#elif (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) && (BACKLIGHT_PIN == C4 || BACKLIGHT_PIN == C5 || BACKLIGHT_PIN == C6)
-#    define HARDWARE_PWM
-#    define ICRx ICR3
-#    define TCCRxA TCCR3A
-#    define TCCRxB TCCR3B
-#    define TIMERx_OVF_vect TIMER3_OVF_vect
-#    define TIMSKx TIMSK3
-#    define TOIEx TOIE3
-
-#    if BACKLIGHT_PIN == C4
-#        if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
-#            error This MCU has no C4 pin!
-#        else
-#            define COMxx0 COM3C0
-#            define COMxx1 COM3C1
-#            define OCRxx OCR3C
-#        endif
-#    elif BACKLIGHT_PIN == C5
-#        if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
-#            error This MCU has no C5 pin!
-#        else
-#            define COMxx0 COM3B0
-#            define COMxx1 COM3B1
-#            define OCRxx OCR3B
-#        endif
-#    elif BACKLIGHT_PIN == C6
-#        define COMxx0 COM3A0
-#        define COMxx1 COM3A1
-#        define OCRxx OCR3A
-#    endif
-#elif (defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__)) && (BACKLIGHT_PIN == B7 || BACKLIGHT_PIN == C5 || BACKLIGHT_PIN == C6)
-#    define HARDWARE_PWM
-#    define ICRx ICR1
-#    define TCCRxA TCCR1A
-#    define TCCRxB TCCR1B
-#    define TIMERx_OVF_vect TIMER1_OVF_vect
-#    define TIMSKx TIMSK1
-#    define TOIEx TOIE1
-
-#    if BACKLIGHT_PIN == B7
-#        define COMxx0 COM1C0
-#        define COMxx1 COM1C1
-#        define OCRxx OCR1C
-#    elif BACKLIGHT_PIN == C5
-#        define COMxx0 COM1B0
-#        define COMxx1 COM1B1
-#        define OCRxx OCR1B
-#    elif BACKLIGHT_PIN == C6
-#        define COMxx0 COM1A0
-#        define COMxx1 COM1A1
-#        define OCRxx OCR1A
-#    endif
-#elif defined(__AVR_ATmega32A__) && (BACKLIGHT_PIN == D4 || BACKLIGHT_PIN == D5)
-#    define HARDWARE_PWM
-#    define ICRx ICR1
-#    define TCCRxA TCCR1A
-#    define TCCRxB TCCR1B
-#    define TIMERx_OVF_vect TIMER1_OVF_vect
-#    define TIMSKx TIMSK
-#    define TOIEx TOIE1
-
-#    if BACKLIGHT_PIN == D4
-#        define COMxx0 COM1B0
-#        define COMxx1 COM1B1
-#        define OCRxx OCR1B
-#    elif BACKLIGHT_PIN == D5
-#        define COMxx0 COM1A0
-#        define COMxx1 COM1A1
-#        define OCRxx OCR1A
-#    endif
-#elif (defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)) && (BACKLIGHT_PIN == B1 || BACKLIGHT_PIN == B2)
-#    define HARDWARE_PWM
-#    define ICRx ICR1
-#    define TCCRxA TCCR1A
-#    define TCCRxB TCCR1B
-#    define TIMERx_OVF_vect TIMER1_OVF_vect
-#    define TIMSKx TIMSK1
-#    define TOIEx TOIE1
-
-#    if BACKLIGHT_PIN == B1
-#        define COMxx0 COM1A0
-#        define COMxx1 COM1A1
-#        define OCRxx OCR1A
-#    elif BACKLIGHT_PIN == B2
-#        define COMxx0 COM1B0
-#        define COMxx1 COM1B1
-#        define OCRxx OCR1B
-#    endif
-#elif (AUDIO_PIN != B5) && (AUDIO_PIN != B6) && (AUDIO_PIN != B7) && (AUDIO_PIN_ALT != B5) && (AUDIO_PIN_ALT != B6) && (AUDIO_PIN_ALT != B7)
-// Timer 1 is not in use by Audio feature, Backlight can use it
-#    pragma message "Using hardware timer 1 with software PWM"
-#    define HARDWARE_PWM
-#    define BACKLIGHT_PWM_TIMER
-#    define ICRx ICR1
-#    define TCCRxA TCCR1A
-#    define TCCRxB TCCR1B
-#    define TIMERx_COMPA_vect TIMER1_COMPA_vect
-#    define TIMERx_OVF_vect TIMER1_OVF_vect
-#    if defined(__AVR_ATmega32A__) // This MCU has only one TIMSK register
-#        define TIMSKx TIMSK
-#    else
-#        define TIMSKx TIMSK1
-#    endif
-#    define TOIEx TOIE1
-
-#    define OCIExA OCIE1A
-#    define OCRxx OCR1A
-#elif (AUDIO_PIN != C4) && (AUDIO_PIN != C5) && (AUDIO_PIN != C6)
-#    pragma message "Using hardware timer 3 with software PWM"
-// Timer 3 is not in use by Audio feature, Backlight can use it
-#    define HARDWARE_PWM
-#    define BACKLIGHT_PWM_TIMER
-#    define ICRx ICR1
-#    define TCCRxA TCCR3A
-#    define TCCRxB TCCR3B
-#    define TIMERx_COMPA_vect TIMER3_COMPA_vect
-#    define TIMERx_OVF_vect TIMER3_OVF_vect
-#    define TIMSKx TIMSK3
-#    define TOIEx TOIE3
-
-#    define OCIExA OCIE3A
-#    define OCRxx OCR3A
-#elif defined(BACKLIGHT_CUSTOM_DRIVER)
-error("Please set 'BACKLIGHT_DRIVER = custom' within rules.mk")
-#else
-error("Please set 'BACKLIGHT_DRIVER = software' within rules.mk")
-#endif
-
-#ifndef BACKLIGHT_PWM_TIMER // pwm through software
-
-static inline void enable_pwm(void) {
-#    if BACKLIGHT_ON_STATE == 1
-    TCCRxA |= _BV(COMxx1);
-#    else
-    TCCRxA |= _BV(COMxx1) | _BV(COMxx0);
-#    endif
-}
-
-static inline void disable_pwm(void) {
-#    if BACKLIGHT_ON_STATE == 1
-    TCCRxA &= ~(_BV(COMxx1));
-#    else
-    TCCRxA &= ~(_BV(COMxx1) | _BV(COMxx0));
-#    endif
-}
-
-#endif
-
-#ifdef BACKLIGHT_PWM_TIMER
-
-// The idea of software PWM assisted by hardware timers is the following
-// we use the hardware timer in fast PWM mode like for hardware PWM, but
-// instead of letting the Output Match Comparator control the led pin
-// (which is not possible since the backlight is not wired to PWM pins on the
-// CPU), we do the LED on/off by oursleves.
-// The timer is setup to count up to 0xFFFF, and we set the Output Compare
-// register to the current 16bits backlight level (after CIE correction).
-// This means the CPU will trigger a compare match interrupt when the counter
-// reaches the backlight level, where we turn off the LEDs,
-// but also an overflow interrupt when the counter rolls back to 0,
-// in which we're going to turn on the LEDs.
-// The LED will then be on for OCRxx/0xFFFF time, adjusted every 244Hz,
-// or F_CPU/BACKLIGHT_CUSTOM_RESOLUTION if used.
-
-// Triggered when the counter reaches the OCRx value
-ISR(TIMERx_COMPA_vect) {
-    backlight_pins_off();
-}
-
-// Triggered when the counter reaches the TOP value
-// this one triggers at F_CPU/ICRx = 16MHz/65536 =~ 244 Hz
-ISR(TIMERx_OVF_vect) {
-#    ifdef BACKLIGHT_BREATHING
-    if (is_breathing()) {
-        breathing_task();
-    }
-#    endif
-    // for very small values of OCRxx (or backlight level)
-    // we can't guarantee this whole code won't execute
-    // at the same time as the compare match interrupt
-    // which means that we might turn on the leds while
-    // trying to turn them off, leading to flickering
-    // artifacts (especially while breathing, because breathing_task
-    // takes many computation cycles).
-    // so better not turn them on while the counter TOP is very low.
-    if (OCRxx > ICRx / 250 + 5) {
-        backlight_pins_on();
-    }
-}
-
-#endif
-
-#define TIMER_TOP 0xFFFFU
-
-// See http://jared.geek.nz/2013/feb/linear-led-pwm
-static uint16_t cie_lightness(uint16_t v) {
-    if (v <= (uint32_t)ICRx / 12) // If the value is less than or equal to ~8% of max
-    {
-        return v / 9; // Same as dividing by 900%
-    } else {
-        // In the next two lines values are bit-shifted. This is to avoid loosing decimals in integer math.
-        uint32_t y   = (((uint32_t)v + (uint32_t)ICRx / 6) << 5) / ((uint32_t)ICRx / 6 + ICRx); // If above 8%, add ~16% of max, and normalize with (max + ~16% max)
-        uint32_t out = (y * y * y * ICRx) >> 15;                                                // Cube it and undo the bit-shifting. (which is now three times as much due to the cubing)
-
-        if (out > ICRx) // Avoid overflows
-        {
-            out = ICRx;
-        }
-        return (uint16_t)out;
-    }
-}
-
-// rescale the supplied backlight value to be in terms of the value limit	// range for val is [0..ICRx]. PWM pin is high while the timer count is below val.
-static uint32_t rescale_limit_val(uint32_t val) {
-    return (val * (BACKLIGHT_LIMIT_VAL + 1)) / 256;
-}
-
-// range for val is [0..ICRx]. PWM pin is high while the timer count is below val.
-static inline void set_pwm(uint16_t val) {
-    OCRxx = val;
-}
-
-void backlight_set(uint8_t level) {
-    if (level > BACKLIGHT_LEVELS) level = BACKLIGHT_LEVELS;
-
-    if (level == 0) {
-#ifdef BACKLIGHT_PWM_TIMER
-        if (OCRxx) {
-            TIMSKx &= ~(_BV(OCIExA));
-            TIMSKx &= ~(_BV(TOIEx));
-        }
-#else
-        // Turn off PWM control on backlight pin
-        disable_pwm();
-#endif
-        backlight_pins_off();
-    } else {
-#ifdef BACKLIGHT_PWM_TIMER
-        if (!OCRxx) {
-            TIMSKx |= _BV(OCIExA);
-            TIMSKx |= _BV(TOIEx);
-        }
-#else
-        // Turn on PWM control of backlight pin
-        enable_pwm();
-#endif
-    }
-    // Set the brightness
-    set_pwm(cie_lightness(rescale_limit_val(ICRx * (uint32_t)level / BACKLIGHT_LEVELS)));
-}
-
-void backlight_task(void) {}
-
-#ifdef BACKLIGHT_BREATHING
-
-#    define BREATHING_NO_HALT 0
-#    define BREATHING_HALT_OFF 1
-#    define BREATHING_HALT_ON 2
-#    define BREATHING_STEPS 128
-
-static uint8_t  breathing_halt    = BREATHING_NO_HALT;
-static uint16_t breathing_counter = 0;
-
-static uint8_t breath_scale_counter = 1;
-/* Run the breathing loop at ~120Hz*/
-const uint8_t   breathing_ISR_frequency     = 120;
-static uint16_t breathing_freq_scale_factor = 2;
-
-#    ifdef BACKLIGHT_PWM_TIMER
-static bool breathing = false;
-
-bool is_breathing(void) {
-    return breathing;
-}
-
-#        define breathing_interrupt_enable() \
-            do {                             \
-                breathing = true;            \
-            } while (0)
-#        define breathing_interrupt_disable() \
-            do {                              \
-                breathing = false;            \
-            } while (0)
-#    else
-
-bool is_breathing(void) {
-    return !!(TIMSKx & _BV(TOIEx));
-}
-
-#        define breathing_interrupt_enable() \
-            do {                             \
-                TIMSKx |= _BV(TOIEx);        \
-            } while (0)
-#        define breathing_interrupt_disable() \
-            do {                              \
-                TIMSKx &= ~_BV(TOIEx);        \
-            } while (0)
-#    endif
-
-#    define breathing_min()        \
-        do {                       \
-            breathing_counter = 0; \
-        } while (0)
-#    define breathing_max()                                                           \
-        do {                                                                          \
-            breathing_counter = get_breathing_period() * breathing_ISR_frequency / 2; \
-        } while (0)
-
-void breathing_enable(void) {
-    breathing_counter = 0;
-    breathing_halt    = BREATHING_NO_HALT;
-    breathing_interrupt_enable();
-}
-
-void breathing_pulse(void) {
-    if (get_backlight_level() == 0)
-        breathing_min();
-    else
-        breathing_max();
-    breathing_halt = BREATHING_HALT_ON;
-    breathing_interrupt_enable();
-}
-
-void breathing_disable(void) {
-    breathing_interrupt_disable();
-    // Restore backlight level
-    backlight_set(get_backlight_level());
-}
-
-void breathing_self_disable(void) {
-    if (get_backlight_level() == 0)
-        breathing_halt = BREATHING_HALT_OFF;
-    else
-        breathing_halt = BREATHING_HALT_ON;
-}
-
-/* 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] PROGMEM = {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();
-}
-
-#    ifdef BACKLIGHT_PWM_TIMER
-void breathing_task(void)
-#    else
-/* Assuming a 16MHz CPU clock and a timer that resets at 64k (ICR1), the following interrupt handler will run
- * about 244 times per second.
- *
- * The following ISR runs at F_CPU/ISRx. With a 16MHz clock and default pwm resolution, that means 244Hz
- */
-ISR(TIMERx_OVF_vect)
-#    endif
-{
-
-    // Only run this ISR at ~120 Hz
-    if (breath_scale_counter++ == breathing_freq_scale_factor) {
-        breath_scale_counter = 1;
-    } else {
-        return;
-    }
-    uint16_t interval = (uint16_t)get_breathing_period() * breathing_ISR_frequency / BREATHING_STEPS;
-    // resetting after one period to prevent ugly reset at overflow.
-    breathing_counter = (breathing_counter + 1) % (get_breathing_period() * breathing_ISR_frequency);
-    uint8_t index     = breathing_counter / interval;
-    // limit index to max step value
-    if (index >= BREATHING_STEPS) {
-        index = BREATHING_STEPS - 1;
-    }
-
-    if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) || ((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1))) {
-        breathing_interrupt_disable();
-    }
-
-    // Set PWM to a brightnessvalue scaled to the configured resolution
-    set_pwm(cie_lightness(rescale_limit_val(scale_backlight((uint32_t)pgm_read_byte(&breathing_table[index]) * ICRx / 255))));
-}
-
-#endif // BACKLIGHT_BREATHING
-
-void backlight_init_ports(void) {
-    // Setup backlight pin as output and output to on state.
-    backlight_pins_init();
-
-    // I could write a wall of text here to explain... but TL;DW
-    // Go read the ATmega32u4 datasheet.
-    // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
-
-#ifdef BACKLIGHT_PWM_TIMER
-    // TimerX setup, Fast PWM mode count to TOP set in ICRx
-    TCCRxA = _BV(WGM11); // = 0b00000010;
-    // clock select clk/1
-    TCCRxB = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
-#else                                             // hardware PWM
-    // Pin PB7 = OCR1C (Timer 1, Channel C)
-    // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
-    // (i.e. start high, go low when counter matches.)
-    // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
-    // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
-
-    /*
-    14.8.3:
-    "In fast PWM mode, the compare units allow generation of PWM waveforms on the OCnx pins. Setting the COMnx1:0 bits to two will produce a non-inverted PWM [..]."
-    "In fast PWM mode the counter is incremented until the counter value matches either one of the fixed values 0x00FF, 0x01FF, or 0x03FF (WGMn3:0 = 5, 6, or 7), the value in ICRn (WGMn3:0 = 14), or the value in OCRnA (WGMn3:0 = 15)."
-    */
-    TCCRxA = _BV(COMxx1) | _BV(WGM11);            // = 0b00001010;
-    TCCRxB = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
-#endif
-
-#ifdef BACKLIGHT_CUSTOM_RESOLUTION
-#    if (BACKLIGHT_CUSTOM_RESOLUTION > 0xFFFF || BACKLIGHT_CUSTOM_RESOLUTION < 1)
-#        error "This out of range of the timer capabilities"
-#    elif (BACKLIGHT_CUSTOM_RESOLUTION < 0xFF)
-#        warning "Resolution lower than 0xFF isn't recommended"
-#    endif
-#    ifdef BACKLIGHT_BREATHING
-    breathing_freq_scale_factor = F_CPU / BACKLIGHT_CUSTOM_RESOLUTION / 120;
-#    endif
-    ICRx = BACKLIGHT_CUSTOM_RESOLUTION;
-#else
-    ICRx = TIMER_TOP;
-#endif
-
-    backlight_init();
-#ifdef BACKLIGHT_BREATHING
-    if (is_backlight_breathing()) {
-        breathing_enable();
-    }
-#endif
-}
diff --git a/quantum/backlight/backlight_chibios.c b/quantum/backlight/backlight_chibios.c
deleted file mode 100644
index 30e95bd5c8..0000000000
--- a/quantum/backlight/backlight_chibios.c
+++ /dev/null
@@ -1,173 +0,0 @@
-#include "quantum.h"
-#include "backlight.h"
-#include <hal.h>
-#include "debug.h"
-
-// Maximum duty cycle limit
-#ifndef BACKLIGHT_LIMIT_VAL
-#    define BACKLIGHT_LIMIT_VAL 255
-#endif
-
-#ifndef BACKLIGHT_PAL_MODE
-#    if defined(USE_GPIOV1)
-#        define BACKLIGHT_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL
-#    else
-// GPIOV2 && GPIOV3
-#        define BACKLIGHT_PAL_MODE 5
-#    endif
-#endif
-
-// GENERIC
-#ifndef BACKLIGHT_PWM_DRIVER
-#    define BACKLIGHT_PWM_DRIVER PWMD4
-#endif
-#ifndef BACKLIGHT_PWM_CHANNEL
-#    define BACKLIGHT_PWM_CHANNEL 3
-#endif
-
-// Support for pins which are on TIM1_CH1N - requires STM32_PWM_USE_ADVANCED
-#ifdef BACKLIGHT_PWM_COMPLEMENTARY_OUTPUT
-#    if BACKLIGHT_ON_STATE == 1
-#        define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_LOW;
-#    else
-#        define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_HIGH;
-#    endif
-#else
-#    if BACKLIGHT_ON_STATE == 1
-#        define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_HIGH;
-#    else
-#        define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_LOW;
-#    endif
-#endif
-
-#ifndef BACKLIGHT_PWM_COUNTER_FREQUENCY
-#    define BACKLIGHT_PWM_COUNTER_FREQUENCY 0xFFFF
-#endif
-
-#ifndef BACKLIGHT_PWM_PERIOD
-#    define BACKLIGHT_PWM_PERIOD 256
-#endif
-
-static PWMConfig pwmCFG = {
-    .frequency = BACKLIGHT_PWM_COUNTER_FREQUENCY, /* PWM clock frequency  */
-    .period    = BACKLIGHT_PWM_PERIOD,            /* PWM period in counter ticks. e.g. clock frequency is 10KHz, period is 256 ticks then t_period is 25.6ms */
-};
-
-#ifdef BACKLIGHT_BREATHING
-static virtual_timer_t breathing_vt;
-#endif
-
-// 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;
-        }
-    }
-}
-
-static uint32_t rescale_limit_val(uint32_t val) {
-    // rescale the supplied backlight value to be in terms of the value limit
-    return (val * (BACKLIGHT_LIMIT_VAL + 1)) / 256;
-}
-
-void backlight_init_ports(void) {
-#ifdef USE_GPIOV1
-    palSetPadMode(PAL_PORT(BACKLIGHT_PIN), PAL_PAD(BACKLIGHT_PIN), BACKLIGHT_PAL_MODE);
-#else
-    palSetPadMode(PAL_PORT(BACKLIGHT_PIN), PAL_PAD(BACKLIGHT_PIN), PAL_MODE_ALTERNATE(BACKLIGHT_PAL_MODE));
-#endif
-
-    pwmCFG.channels[BACKLIGHT_PWM_CHANNEL - 1].mode = PWM_OUTPUT_MODE;
-    pwmStart(&BACKLIGHT_PWM_DRIVER, &pwmCFG);
-
-    backlight_set(get_backlight_level());
-
-#ifdef BACKLIGHT_BREATHING
-    chVTObjectInit(&breathing_vt);
-    if (is_backlight_breathing()) {
-        breathing_enable();
-    }
-#endif
-}
-
-void backlight_set(uint8_t level) {
-    if (level > BACKLIGHT_LEVELS) {
-        level = BACKLIGHT_LEVELS;
-    }
-
-    if (level == 0) {
-        // Turn backlight off
-        pwmDisableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1);
-    } else {
-        // Turn backlight on
-        uint32_t duty = (uint32_t)(cie_lightness(rescale_limit_val(0xFFFF * (uint32_t)level / BACKLIGHT_LEVELS)));
-        pwmEnableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
-    }
-}
-
-void backlight_task(void) {}
-
-#ifdef BACKLIGHT_BREATHING
-
-#    define BREATHING_STEPS 128
-
-/* 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};
-
-static void breathing_callback(virtual_timer_t *vtp, void *p);
-
-bool is_breathing(void) {
-    return chVTIsArmed(&breathing_vt);
-}
-
-void breathing_enable(void) {
-    /* Update frequency is 256Hz -> 3906us intervals */
-    chVTSetContinuous(&breathing_vt, TIME_US2I(3906), breathing_callback, NULL);
-}
-
-void breathing_disable(void) {
-    chVTReset(&breathing_vt);
-
-    // Restore backlight level
-    backlight_set(get_backlight_level());
-}
-
-// Use this before the cie_lightness function.
-static inline uint16_t scale_backlight(uint16_t v) {
-    return v / BACKLIGHT_LEVELS * get_backlight_level();
-}
-
-static void breathing_callback(virtual_timer_t *vtp, void *p) {
-    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.
-    static uint16_t breathing_counter = 0;
-    breathing_counter                 = (breathing_counter + 1) % (breathing_period * 256);
-    uint8_t  index                    = breathing_counter / interval % BREATHING_STEPS;
-    uint32_t duty                     = cie_lightness(rescale_limit_val(scale_backlight(breathing_table[index] * 256)));
-
-    chSysLockFromISR();
-    pwmEnableChannelI(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
-    chSysUnlockFromISR();
-}
-
-// TODO: integrate generic pulse solution
-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
diff --git a/quantum/backlight/backlight_driver_common.c b/quantum/backlight/backlight_driver_common.c
index 1eb8969084..8c3fe461d7 100644
--- a/quantum/backlight/backlight_driver_common.c
+++ b/quantum/backlight/backlight_driver_common.c
@@ -1,6 +1,7 @@
-#include "quantum.h"
 #include "backlight.h"
 #include "backlight_driver_common.h"
+#include "gpio.h"
+#include "util.h"
 
 #if !defined(BACKLIGHT_PIN) && !defined(BACKLIGHT_PINS)
 #    error "Backlight pin/pins not defined. Please configure."
diff --git a/quantum/backlight/backlight_software.c b/quantum/backlight/backlight_software.c
deleted file mode 100644
index 27ccbd2c9f..0000000000
--- a/quantum/backlight/backlight_software.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "quantum.h"
-#include "backlight.h"
-#include "backlight_driver_common.h"
-
-#ifdef BACKLIGHT_BREATHING
-#    error "Backlight breathing is not available for software PWM. Please disable."
-#endif
-
-static uint16_t s_duty_pattern = 0;
-
-// clang-format off
-
-/** \brief PWM duty patterns
- *
- * We scale the current backlight level to an index within this array. This allows
- * backlight_task to focus on just switching LEDs on/off, and we can predict the duty pattern
- */
-static const uint16_t backlight_duty_table[] = {
-    0b0000000000000000,
-    0b1000000000000000,
-    0b1000000010000000,
-    0b1000001000010000,
-    0b1000100010001000,
-    0b1001001001001000,
-    0b1010101010101010,
-    0b1110111011101110,
-    0b1111111111111111,
-};
-#define backlight_duty_table_size ARRAY_SIZE(backlight_duty_table)
-
-// clang-format on
-
-static uint8_t scale_backlight(uint8_t v) {
-    return v * (backlight_duty_table_size - 1) / BACKLIGHT_LEVELS;
-}
-
-void backlight_init_ports(void) {
-    backlight_pins_init();
-}
-
-void backlight_set(uint8_t level) {
-    s_duty_pattern = backlight_duty_table[scale_backlight(level)];
-}
-
-void backlight_task(void) {
-    static uint8_t backlight_tick = 0;
-
-    if (s_duty_pattern & ((uint16_t)1 << backlight_tick)) {
-        backlight_pins_on();
-    } else {
-        backlight_pins_off();
-    }
-    backlight_tick = (backlight_tick + 1) % 16;
-}
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