fix(radio): constrain Backlight SF input value to valid range (#6009)

3djc · web-flow · commit 5a0c8dbff6a2 · 2025-03-21T10:11:32.000+10:00
diff --git a/radio/src/functions.cpp b/radio/src/functions.cpp
@@ -406,7 +406,7 @@ void evalFunctions(CustomFunctionData * functions, CustomFunctionsContext & func
               break;
             }
 
-            getvalue_t raw = getValue(CFN_PARAM(cfn));
+            getvalue_t raw = limit(-RESX, (int)getValue(CFN_PARAM(cfn)), RESX);
 #if defined(COLORLCD)
             requiredBacklightBright = BACKLIGHT_LEVEL_MAX - (g_eeGeneral.blOffBright +
                 ((1024 + raw) * ((BACKLIGHT_LEVEL_MAX - g_eeGeneral.backlightBright) - g_eeGeneral.blOffBright) / 2048));

Original file line number	Diff line number	Diff line change
`@@ -406,7 +406,7 @@ void evalFunctions(CustomFunctionData * functions, CustomFunctionsContext & func`
`406`	`406`	`break;`
`407`	`407`	`}`
`408`	`408`
`409`		`- getvalue_t raw = getValue(CFN_PARAM(cfn));`
	`409`	`+ getvalue_t raw = limit(-RESX, (int)getValue(CFN_PARAM(cfn)), RESX);`
`410`	`410`	`#if defined(COLORLCD)`
`411`	`411`	`requiredBacklightBright = BACKLIGHT_LEVEL_MAX - (g_eeGeneral.blOffBright +`
`412`	`412`	`((1024 + raw) * ((BACKLIGHT_LEVEL_MAX - g_eeGeneral.backlightBright) - g_eeGeneral.blOffBright) / 2048));`