Unify RGB and RGBW commands (#7297)

* Fix unicode in comments

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Remove separate RGBW implementation for a unified function

* Set White to 0 in RGBW LEDs

This is just to get this working, later, proper brightness can be handled elsewhere.

* Use us instead of nanoseconds(?) since it renders correctly on web

* Remove RGBW function from arm/ws2812.h

* Remove RGBW function from arm/ws2812.c

* Formatting changes

* Add doc info

8 files changed, 45 insertions, 41 deletions

diff --git a/docs/config_options.md b/docs/config_options.md
index c44a47178..0cf3fb78a 100644
--- a/docs/config_options.md
+++ b/docs/config_options.md
@@ -196,8 +196,8 @@ If you define these options you will enable the associated feature, which may in
   * units to step when in/decreasing saturation
 * `#define RGBLIGHT_VAL_STEP 12`
   * units to step when in/decreasing value (brightness)
-* `#define RGBW_BB_TWI`
-  * bit-bangs TWI to EZ RGBW LEDs (only required for Ergodox EZ)
+* `#define RGBW`
+  * Enables RGBW LED support
 
 ## Mouse Key Options
 
diff --git a/drivers/arm/ws2812.c b/drivers/arm/ws2812.c
index b076eff33..fa702fca9 100644
--- a/drivers/arm/ws2812.c
+++ b/drivers/arm/ws2812.c
@@ -84,17 +84,12 @@ void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
         sendByte(ledarray[i].g);
         sendByte(ledarray[i].r);
         sendByte(ledarray[i].b);
+#ifdef RGBW
+        sendByte(ledarray[i].w);
+#endif
     }
 
     wait_ns(RES);
 
     chSysUnlock();
 }
-
-// Setleds for SK6812RGBW
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
-// not supported - for now error out if its enabled
-#ifdef RGBW
-#    error "RGBW not supported"
-#endif
-}
diff --git a/drivers/arm/ws2812.h b/drivers/arm/ws2812.h
index bf5c9fd0f..41c22a00b 100644
--- a/drivers/arm/ws2812.h
+++ b/drivers/arm/ws2812.h
@@ -11,7 +11,6 @@
  * The functions will perform the following actions:
  *         - Set the data-out pin as output
  *         - Send out the LED data
- *         - Wait 50�s to reset the LEDs
+ *         - Wait 50us to reset the LEDs
  */
 void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);
diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c
index 5c733c4ab..dc7e8d48a 100644
--- a/drivers/avr/ws2812.c
+++ b/drivers/avr/ws2812.c
@@ -36,7 +36,6 @@
 void ws2812_sendarray(uint8_t *array, uint16_t length);
 void ws2812_sendarray_mask(uint8_t *array, uint16_t length, uint8_t pinmask);
 
-
 #ifdef RGBW_BB_TWI
 
 // Port for the I2C
@@ -146,16 +145,6 @@ void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
 }
 
 void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask) {
-    // ws2812_DDRREG |= pinmask; // Enable DDR
-    // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
-
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds + leds + leds, pinmask);
-    _delay_us(50);
-}
-
-// Setleds for SK6812RGBW
-void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
 #ifdef RGBW_BB_TWI
     uint8_t sreg_prev, twcr_prev;
     sreg_prev = SREG;
@@ -176,15 +165,18 @@ void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
     SREG = sreg_prev;
     TWCR = twcr_prev;
 #endif
-
-    // ws2812_DDRREG |= _BV(ws2812_pin); // Enable DDR
+    // ws2812_DDRREG |= pinmask; // Enable DDR
     // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
+    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
 
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds << 2, _BV(RGB_DI_PIN & 0xF));
+    ws2812_sendarray_mask((uint8_t *)ledarray, leds * sizeof(LED_TYPE), pinmask);
 
 #ifndef RGBW_BB_TWI
+#    ifdef RGBW
     _delay_us(80);
+#    else
+    _delay_us(50);
+#    endif
 #endif
 }
 
diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h
index 9652b94bb..b869fb28c 100644
--- a/drivers/avr/ws2812.h
+++ b/drivers/avr/ws2812.h
@@ -34,8 +34,7 @@
  * The functions will perform the following actions:
  *         - Set the data-out pin as output
  *         - Send out the LED data
- *         - Wait 50�s to reset the LEDs
+ *         - 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 pinmask);
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);
diff --git a/drivers/avr/ws2812_i2c.c b/drivers/avr/ws2812_i2c.c
index 8525a026c..1c332e24b 100644
--- a/drivers/avr/ws2812_i2c.c
+++ b/drivers/avr/ws2812_i2c.c
@@ -1,6 +1,10 @@
 #include "ws2812.h"
 #include "i2c_master.h"
 
+#ifdef RGBW
+#    error "RGBW not supported"
+#endif
+
 #ifndef WS2812_ADDRESS
 #    define WS2812_ADDRESS 0xb0
 #endif
@@ -21,11 +25,3 @@ void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
 
     i2c_transmit(WS2812_ADDRESS, (uint8_t *)ledarray, sizeof(LED_TYPE) * leds, WS2812_TIMEOUT);
 }
-
-// Setleds for SK6812RGBW
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
-// not supported - for now error out if its enabled
-#ifdef RGBW
-#    error "RGBW not supported"
-#endif
-}
diff --git a/quantum/rgb_matrix_drivers.c b/quantum/rgb_matrix_drivers.c
index 503f97014..9729a3064 100644
--- a/quantum/rgb_matrix_drivers.c
+++ b/quantum/rgb_matrix_drivers.c
@@ -112,6 +112,9 @@ static inline void setled(int i, uint8_t r, uint8_t g, uint8_t b) {
     led[i].r = r;
     led[i].g = g;
     led[i].b = b;
+#    ifdef RGBW
+    led[i].w = 0;
+#    endif
 }
 
 static void setled_all(uint8_t r, uint8_t g, uint8_t b) {
diff --git a/quantum/rgblight.c b/quantum/rgblight.c
index 1c197827f..a4cbe513e 100644
--- a/quantum/rgblight.c
+++ b/quantum/rgblight.c
@@ -126,6 +126,9 @@ void setrgb(uint8_t r, uint8_t g, uint8_t b, LED_TYPE *led1) {
     (*led1).r = r;
     (*led1).g = g;
     (*led1).b = b;
+#ifdef RGBW
+    (*led1).w = 0;
+#endif
 }
 
 void rgblight_check_config(void) {
@@ -514,6 +517,9 @@ void rgblight_setrgb(uint8_t r, uint8_t g, uint8_t b) {
         led[i].r = r;
         led[i].g = g;
         led[i].b = b;
+#ifdef RGBW
+        led[i].w = 0;
+#endif
     }
     rgblight_set();
 }
@@ -526,6 +532,9 @@ void rgblight_setrgb_at(uint8_t r, uint8_t g, uint8_t b, uint8_t index) {
     led[index].r = r;
     led[index].g = g;
     led[index].b = b;
+#ifdef RGBW
+    led[index].w = 0;
+#endif
     rgblight_set();
 }
 
@@ -560,6 +569,9 @@ void rgblight_setrgb_range(uint8_t r, uint8_t g, uint8_t b, uint8_t start, uint8
         led[i].r = r;
         led[i].g = g;
         led[i].b = b;
+#ifdef RGBW
+        led[i].w = 0;
+#endif
     }
     rgblight_set();
     wait_ms(1);
@@ -595,6 +607,9 @@ void rgblight_set(void) {
             led[i].r = 0;
             led[i].g = 0;
             led[i].b = 0;
+#    ifdef RGBW
+            led[i].w = 0;
+#    endif
         }
     }
 #    ifdef RGBLIGHT_LED_MAP
@@ -606,11 +621,7 @@ void rgblight_set(void) {
 #    else
     start_led = led + clipping_start_pos;
 #    endif
-#    ifdef RGBW
-    ws2812_setleds_rgbw(start_led, num_leds);
-#    else
     ws2812_setleds(start_led, num_leds);
-#    endif
 }
 #endif
 
@@ -908,6 +919,9 @@ void rgblight_effect_snake(animation_status_t *anim) {
         ledp->r        = 0;
         ledp->g        = 0;
         ledp->b        = 0;
+#    ifdef RGBW
+        ledp->w        = 0;
+#    endif
         for (j = 0; j < RGBLIGHT_EFFECT_SNAKE_LENGTH; j++) {
             k = pos + j * increment;
             if (k > RGBLED_NUM) {
@@ -965,6 +979,9 @@ void rgblight_effect_knight(animation_status_t *anim) {
         led[i].r = 0;
         led[i].g = 0;
         led[i].b = 0;
+#    ifdef RGBW
+        led[i].w = 0;
+#    endif
     }
     // Determine which LEDs should be lit up
     for (i = 0; i < RGBLIGHT_EFFECT_KNIGHT_LED_NUM; i++) {
@@ -976,6 +993,9 @@ void rgblight_effect_knight(animation_status_t *anim) {
             led[cur].r = 0;
             led[cur].g = 0;
             led[cur].b = 0;
+#    ifdef RGBW
+            led[cur].w = 0;
+#    endif
         }
     }
     rgblight_set();