Refactor cannonkeys f103 boards to use core backlight (#8089)

* Refactor to use core backlight

* Remove custom implementation

3 files changed, 0 insertions, 264 deletions

diff --git a/keyboards/cannonkeys/bluepill/keyboard.c b/keyboards/cannonkeys/bluepill/keyboard.c
index 7eb30ea132..de00158813 100644
--- a/keyboards/cannonkeys/bluepill/keyboard.c
+++ b/keyboards/cannonkeys/bluepill/keyboard.c
@@ -1,6 +1,5 @@
 #include "ch.h"
 #include "hal.h"
-#include "led_custom.h"
 #include "util.h"
 #include "quantum.h"
 
diff --git a/keyboards/cannonkeys/bluepill/led.c b/keyboards/cannonkeys/bluepill/led.c
deleted file mode 100644
index a9ede5bbaa..0000000000
--- a/keyboards/cannonkeys/bluepill/led.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
-Copyright 2012 Jun Wako <wakojun@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-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 "hal.h"
-#include "backlight.h"
-#include "led.h"
-#include "led_custom.h"
-#include "printf.h"
-
-static void breathing_callback(PWMDriver *pwmp);
-
-static PWMConfig pwmCFG = {
-  0xFFFF,                              /* PWM clock frequency  */
-  256,                              /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */
-  NULL,                               /* No Callback */
-  {
-      {PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 0 */
-      {PWM_OUTPUT_DISABLED, NULL},
-      {PWM_OUTPUT_DISABLED, NULL},
-      {PWM_OUTPUT_DISABLED, NULL}
-  },
-  0,                                  /* HW dependent part.*/
-  0
-};
-
-static PWMConfig pwmCFG_breathing = {
-  0xFFFF,                              /* 10kHz PWM clock frequency  */
-  256,                              /* PWM period (in ticks) 1S (1/10kHz=0.1mS 0.1ms*10000 ticks=1S) */
-  breathing_callback,                               /* Breathing Callback */
-  {
-      {PWM_OUTPUT_ACTIVE_HIGH, NULL}, /* Enable Channel 0 */
-      {PWM_OUTPUT_DISABLED, NULL},
-      {PWM_OUTPUT_DISABLED, NULL},
-      {PWM_OUTPUT_DISABLED, NULL}
-  },
-  0,                                  /* HW dependent part.*/
-  0
-};
-
-// 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) {
-    printf("backlight_init_ports()\n");
-    #ifdef BACKLIGHT_ENABLE
-
-    palSetPadMode(GPIOA, 8, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
-    pwmStart(&PWMD1, &pwmCFG);
-    pwmEnableChannel(&PWMD1, 0, PWM_FRACTION_TO_WIDTH(&PWMD1, 0xFFFF,cie_lightness(0xFFFF)));
-    #endif
-}
-
-void backlight_set(uint8_t level) {
-    printf("backlight_set(%d)\n", level);
-    #ifdef BACKLIGHT_ENABLE
-    uint32_t duty = (uint32_t)(cie_lightness(0xFFFF * (uint32_t) level / BACKLIGHT_LEVELS));
-    printf("duty: (%d)\n", duty);
-    if (level == 0) {
-        // Turn backlight off
-        pwmDisableChannel(&PWMD1, 0);
-    } else {
-      // Turn backlight on
-      if(!is_breathing()){
-        pwmEnableChannel(&PWMD1, 0, PWM_FRACTION_TO_WIDTH(&PWMD1,0xFFFF,duty));
-      }
-    }
-    #endif
-}
-
-
-uint8_t backlight_tick = 0;
-
-void backlight_task(void) {
-}
-
-#define BREATHING_NO_HALT  0
-#define BREATHING_HALT_OFF 1
-#define BREATHING_HALT_ON  2
-#define BREATHING_STEPS 128
-
-static uint8_t breathing_period = BREATHING_PERIOD;
-static uint8_t breathing_halt = BREATHING_NO_HALT;
-static uint16_t breathing_counter = 0;
-
-bool is_breathing(void) {
-    return PWMD1.config == &pwmCFG_breathing;
-}
-
-#define breathing_min() do {breathing_counter = 0;} while (0)
-#define breathing_max() do {breathing_counter = breathing_period * 256 / 2;} while (0)
-
-
-void breathing_interrupt_enable(void){
-    pwmStop(&PWMD1);
-    printf("starting with callback\n");
-    pwmStart(&PWMD1, &pwmCFG_breathing);
-    chSysLockFromISR();
-    pwmEnablePeriodicNotification(&PWMD1);
-    pwmEnableChannelI(
-      &PWMD1,
-      0,
-      PWM_FRACTION_TO_WIDTH(
-        &PWMD1,
-        0xFFFF,
-        0xFFFF
-      )
-    );
-    chSysUnlockFromISR();
-}
-
-void breathing_interrupt_disable(void){
-    pwmStop(&PWMD1);
-    printf("starting without callback\n");
-    pwmStart(&PWMD1, &pwmCFG);
-}
-
-void breathing_enable(void)
-{
-  printf("breathing_enable()\n");
-  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)
-{
-    printf("breathing_disable()\n");
-    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;
-}
-
-void breathing_toggle(void) {
-  if (is_breathing()){
-    printf("disable breathing\n");
-    breathing_disable();
-  } else {
-    printf("enable breathing\n");
-    breathing_enable();
-  }
-}
-
-void breathing_period_set(uint8_t value)
-{
-  if (!value)
-    value = 1;
-  breathing_period = value;
-}
-
-void breathing_period_default(void) {
-  breathing_period_set(BREATHING_PERIOD);
-}
-
-void breathing_period_inc(void)
-{
-  breathing_period_set(breathing_period+1);
-}
-
-void breathing_period_dec(void)
-{
-  breathing_period_set(breathing_period-1);
-}
-
-/* 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();
-}
-
-static void breathing_callback(PWMDriver *pwmp)
-{
-  (void)pwmp;
-  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;
-
-  if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) ||
-      ((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1)))
-  {
-      breathing_interrupt_disable();
-  }
-
-  uint32_t duty = cie_lightness(scale_backlight(breathing_table[index] * 256));
-
-  chSysLockFromISR();
-  pwmEnableChannelI(
-    &PWMD1,
-    0,
-    PWM_FRACTION_TO_WIDTH(
-      &PWMD1,
-      0xFFFF,
-      duty
-    )
-  );
-  chSysUnlockFromISR();
-}
-
-
-void led_set(uint8_t usb_led)
-{
-    if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
-      palSetPad(GPIOC, 13);
-    } else {
-    	palClearPad(GPIOC, 13);
-    }
-}
diff --git a/keyboards/cannonkeys/bluepill/led_custom.h b/keyboards/cannonkeys/bluepill/led_custom.h
deleted file mode 100644
index 8451c06d6f..0000000000
--- a/keyboards/cannonkeys/bluepill/led_custom.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#pragma once
-
-void backlight_task(void);
-void breathing_interrupt_disable(void);
-void breathing_interrupt_enable(void);
-bool is_breathing(void);