Fix incorrect delay when setting WS2812 (and similar) leds (#9302)

* Fix incorrect delay when setting WS2812 (and similar) leds

* Add documentation for WS2812_DELAY_MICROSECONDS

* Remove improper cast to uint8_t

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>

* Remove unneeded cast to uint8_t and correct math

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>

* microseconds -> µs

Co-authored-by: Ryan <fauxpark@gmail.com>

* Make documentation better match the spec sheet.

Co-authored-by: Ryan <fauxpark@gmail.com>

* Rename macro to match spec sheet

* Further correction to the delay maths for the SPI case.

Co-authored-by: Joel Challis <git@zvecr.com>

* Move ws2812_common.h to the drivers directory

* Revert "Further correction to the delay maths for the SPI case."

This reverts commit e61b56a2cfc7dfec9992a7a3af92afa50e5b8ec0.

* Remove ws2812_setleds_pin(); consolidate ws2812.h

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>

format code according to conventions [skip ci]

2 files changed, 5 insertions, 55 deletions

diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c
index 5c3d72dcb5..dd2ef89912 100644
--- a/drivers/avr/ws2812.c
+++ b/drivers/avr/ws2812.c
@@ -36,25 +36,15 @@
 
 static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi);
 
-// Setleds for standard RGB
-void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) {
-    // wrap up usage of RGB_DI_PIN
-    ws2812_setleds_pin(ledarray, number_of_leds, RGB_DI_PIN);
-}
-
-void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pin) {
-    DDRx_ADDRESS(RGB_DI_PIN) |= pinmask(pin);
+void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) {
+    DDRx_ADDRESS(RGB_DI_PIN) |= pinmask(RGB_DI_PIN);
 
-    uint8_t masklo = ~(pinmask(pin)) & PORTx_ADDRESS(pin);
-    uint8_t maskhi = pinmask(pin) | PORTx_ADDRESS(pin);
+    uint8_t masklo = ~(pinmask(RGB_DI_PIN)) & PORTx_ADDRESS(RGB_DI_PIN);
+    uint8_t maskhi = pinmask(RGB_DI_PIN) | PORTx_ADDRESS(RGB_DI_PIN);
 
     ws2812_sendarray_mask((uint8_t *)ledarray, number_of_leds * sizeof(LED_TYPE), masklo, maskhi);
 
-#ifdef RGBW
-    _delay_us(80);
-#else
-    _delay_us(50);
-#endif
+    _delay_us(WS2812_TRST_US);
 }
 
 /*
diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h
deleted file mode 100644
index 88eb081894..0000000000
--- a/drivers/avr/ws2812.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * light weight WS2812 lib include
- *
- * Version 2.3  - Nev 29th 2015
- * Author: Tim (cpldcpu@gmail.com)
- *
- * Please do not change this file! All configuration is handled in "ws2812_config.h"
- *
- * 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/>.
- */
-
-#pragma once
-
-#include "quantum/color.h"
-
-/* User Interface
- *
- * Input:
- *         ledarray:           An array of GRB data describing the LED colors
- *         number_of_leds:     The number of LEDs to write
- *         pin (optional):     A pin_t definition for the line to drive
- *
- * The functions will perform the following actions:
- *         - Set the data-out pin as output
- *         - Send out the LED data
- *         - Wait 50us to reset the LEDs
- */
-void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
-void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pin);