framework_lib: Add auto powerbutton brightness

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

framework_lib/src/chromium_ec/commands.rs

@@ -845,6 +845,7 @@ pub enum FpLedBrightnessLevel {
     Medium = 1,
     Low = 2,
     UltraLow = 3,
+    Auto = 0xFF,
 }
 
 #[repr(C, packed)]

framework_lib/src/commandline/mod.rs

@@ -94,6 +94,7 @@ pub enum FpBrightnessArg {
     Medium,
     Low,
     UltraLow,
+    Auto,
 }
 impl From<FpBrightnessArg> for FpLedBrightnessLevel {
     fn from(w: FpBrightnessArg) -> FpLedBrightnessLevel {
@@ -102,6 +103,7 @@ impl From<FpBrightnessArg> for FpLedBrightnessLevel {
             FpBrightnessArg::Medium => FpLedBrightnessLevel::Medium,
             FpBrightnessArg::Low => FpLedBrightnessLevel::Low,
             FpBrightnessArg::UltraLow => FpLedBrightnessLevel::UltraLow,
+            FpBrightnessArg::Auto => FpLedBrightnessLevel::Auto,
         }
     }
 }

framework_lib/src/commandline/uefi.rs

@@ -248,6 +248,8 @@ pub fn parse(args: &[String]) -> Cli {
                     Some(Some(FpBrightnessArg::Low))
                 } else if fp_brightness_arg == "ultra-low" {
                     Some(Some(FpBrightnessArg::UltraLow))
+                } else if fp_brightness_arg == "auto" {
+                    Some(Some(FpBrightnessArg::Auto))
                 } else {
                     println!("Invalid value for --fp-brightness: {}", fp_brightness_arg);
                     None