WS2812 API rework (#24364)

* Begin WS2812 API rework

* Move RGBW conversion, clean up color.h, fix RGBW for AVR bitbang

* Formatting & update PS2AVRGB I2C driver (untested)

* Tested ARM bitbang RGB+RGBW

* Tested ARM SPI RGB - RGBW not working

* Tested ARM PWM RGB+RGBW

* Tested RP2040 PIO driver RGB+RGBW

* Update RGBLight

* Formatting

* Fix BM60HSRGB rev2

* Fix oddforge/vea

* Fix 1k and XD002 RGBLite

* Fix model_m/mschwingen

* Fix handwired/promethium

* Rename `WS2812_LED_TOTAL` for BM60HSRGB

* Fix work_louder boards

* Fix dawn60

* Fix rgbkb/pan

* Fix neson_design/700e and n6

* Fix ergodox_ez/shine

* ergodox_ez/shine: invert indices for left half

* Fix matrix/abelx

* Fix matrix/m20add

* Remove custom rgblight driver for matrix/noah - should be done with lighting layers

* Fix LED indexes for RGBLight split

* Rename `convert_rgb_to_rgbw()` to `ws2812_rgb_to_rgbw()`

* Update WS2812 API docs

* `ergodox_ez/shine`: simplify LED index calculation

* LED/RGB Matrix: Add weak function for LED index resolution

* Bandaid fix for RGB Matrix splits not using WS2812

* `steelseries/prime_plus`: redo custom RGBLight driver

* Update keyboards/steelseries/prime_plus/rgblight_custom.c

Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>

---------

Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>

2 files changed, 12 insertions, 1 deletions

diff --git a/quantum/led_matrix/led_matrix.c b/quantum/led_matrix/led_matrix.c
index a5f0296f8d..58263c62e3 100644
--- a/quantum/led_matrix/led_matrix.c
+++ b/quantum/led_matrix/led_matrix.c
@@ -139,11 +139,20 @@ void led_matrix_update_pwm_buffers(void) {
     led_matrix_driver.flush();
 }
 
+__attribute__((weak)) int led_matrix_led_index(int index) {
+#if defined(LED_MATRIX_SPLIT)
+    if (!is_keyboard_left() && index >= k_led_matrix_split[0]) {
+        return index - k_led_matrix_split[0];
+    }
+#endif
+    return index;
+}
+
 void led_matrix_set_value(int index, uint8_t value) {
 #ifdef USE_CIE1931_CURVE
     value = pgm_read_byte(&CIE1931_CURVE[value]);
 #endif
-    led_matrix_driver.set_value(index, value);
+    led_matrix_driver.set_value(led_matrix_led_index(index), value);
 }
 
 void led_matrix_set_value_all(uint8_t value) {
diff --git a/quantum/led_matrix/led_matrix.h b/quantum/led_matrix/led_matrix.h
index 9a13c3e52b..a3468a2003 100644
--- a/quantum/led_matrix/led_matrix.h
+++ b/quantum/led_matrix/led_matrix.h
@@ -121,6 +121,8 @@ void eeconfig_debug_led_matrix(void);
 uint8_t led_matrix_map_row_column_to_led_kb(uint8_t row, uint8_t column, uint8_t *led_i);
 uint8_t led_matrix_map_row_column_to_led(uint8_t row, uint8_t column, uint8_t *led_i);
 
+int led_matrix_led_index(int index);
+
 void led_matrix_set_value(int index, uint8_t value);
 void led_matrix_set_value_all(uint8_t value);