Fix rotary edge cases (#19164)

arendst · Aug 25, 2023 · 7f24d20 · 7f24d20
1 parent 16b1c55
commit 7f24d20
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Showing 2 changed files with 8 additions and 8 deletions.
diff --git a/tasmota/tasmota_support/support_rotary.ino b/tasmota/tasmota_support/support_rotary.ino
@@ -124,8 +124,7 @@ static void IRAM_ATTR RotaryIsrArgMiDesk(void *arg) {
   encoder->state = (state >> 2);
 }
 
-void IRAM_ATTR RotaryIsrArg(void *arg);
-void RotaryIsrArg(void *arg) {
+static void IRAM_ATTR RotaryIsrArg(void *arg) {
   tEncoder* encoder = static_cast<tEncoder*>(arg);
 
   // Theo Arends
@@ -146,9 +145,9 @@ void RotaryInitMaxSteps(void) {
   }
   uint8_t max_steps = Settings->param[P_ROTARY_MAX_STEP];
   if (!Rotary.model) { max_steps *= 3; }
-  Rotary.dimmer_increment = 100 / max_steps;  // Dimmer 1..100 = 100
-  Rotary.ct_increment =     350 / max_steps;  // Ct 153..500 = 347
-  Rotary.color_increment =  360 / max_steps;  // Hue 0..359 = 360
+  Rotary.dimmer_increment = 100 / min((uint8_t)100, max_steps);  // Dimmer 1..100 = 100
+  Rotary.ct_increment =     350 / min((uint8_t)350, max_steps);  // Ct 153..500 = 347
+  Rotary.color_increment =  360 / min((uint8_t)360, max_steps);  // Hue 0..359 = 360
 }
 
 void RotaryInit(void) {

diff --git a/tasmota/tasmota_xdrv_driver/xdrv_04_light.ino b/tasmota/tasmota_xdrv_driver/xdrv_04_light.ino
@@ -1358,9 +1358,10 @@ void LightColorOffset(int32_t offset) {
   uint16_t hue;
   uint8_t sat;
   light_state.getHSB(&hue, &sat, nullptr);  // Allow user control over Saturation
-  hue += offset;
-  if (hue < 0) { hue += 359; }
-  if (hue > 359) { hue -= 359; }
+  int16_t hue_new = hue + offset;
+  if (hue_new < 0) { hue_new += 359; }
+  if (hue_new > 359) { hue_new -= 359; }
+  hue = hue_new;
   if (!Light.pwm_multi_channels) {
     light_state.setHS(hue, sat);
   } else {