Allow expanding from 8 to 32 RGB Lighting Layers (#8941)

* Allow 16 lighting layers

* Require #define RGBLIGHT_LAYERS_16 to enable 16 layers

* Override RGBLIGHT_MAX_LAYERS to set maximum number of lighting layers

* Enforce lower bound on RGBLIGHT_MAX_LAYERS

Co-Authored-By: Takeshi ISHII <2170248+mtei@users.noreply.github.com>

* Fix an error in the check for valid RGBLIGHT_MAX_LAYERS

* Don't use bitfield / PACKED, as it causes bloat

* Update documentation re: up to 32 lighting layers

* Run cformat

* Add note about increasing FW size in docs/config_options.md

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Remove no-longer-valid comment

* Add doc note that split sync will be slower

Co-authored-by: Takeshi ISHII <2170248+mtei@users.noreply.github.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/quantum/rgblight.c b/quantum/rgblight.c
index 4f227794f..64123774c 100644
--- a/quantum/rgblight.c
+++ b/quantum/rgblight.c
@@ -613,7 +613,7 @@ void rgblight_sethsv_slave(uint8_t hue, uint8_t sat, uint8_t val) { rgblight_set
 
 #ifdef RGBLIGHT_LAYERS
 void rgblight_set_layer_state(uint8_t layer, bool enabled) {
-    uint8_t mask = 1 << layer;
+    rgblight_layer_mask_t mask = 1 << layer;
     if (enabled) {
         rgblight_status.enabled_layer_mask |= mask;
     } else {
@@ -627,7 +627,7 @@ void rgblight_set_layer_state(uint8_t layer, bool enabled) {
 }
 
 bool rgblight_get_layer_state(uint8_t layer) {
-    uint8_t mask = 1 << layer;
+    rgblight_layer_mask_t mask = 1 << layer;
     return (rgblight_status.enabled_layer_mask & mask) != 0;
 }