urukul: add urukul clock config getter

src/urukul.rs

@@ -173,6 +173,18 @@ where
         self.set_clock_division(division)
     }
 
+    pub fn get_clock_source(&mut self) -> Result<ClockSource, Error<E>> {
+        match (
+            self.config_register.get_configuration(CFGMask::CLK_SEL0),
+            self.config_register.get_configuration(CFGMask::CLK_SEL1)
+        ) {
+            (0, 0) => Ok(ClockSource::OSC),
+            (0, 1) => Ok(ClockSource::MMCX),
+            (1, _) => Ok(ClockSource::SMA),
+            _ => Err(Error::ConfigRegisterError)
+        }
+    }
+
     pub fn set_clock_source(&mut self, source: ClockSource) -> Result<(), Error<E>> {
         // Change clock source through configuration register
         match source {
@@ -190,6 +202,10 @@ where
         }.map(|_| ())
     }
 
+    pub fn get_clock_frequency(&mut self) -> f64 {
+        self.f_master_clk
+    }
+
     pub fn set_clock_frequency(&mut self, frequency: f64) -> Result<(), Error<E>> {
         // Update master clock frequency
         self.f_master_clk = frequency;
@@ -198,6 +214,15 @@ where
         self.set_dds_ref_clk()
     }
 
+    pub fn get_clock_division(&mut self) -> Result<u8, Error<E>> {
+        match self.config_register.get_configuration(CFGMask::DIV) {
+            0| 3 => Ok(4),
+            1 => Ok(1),
+            2 => Ok(2),
+            _ => Err(Error::ConfigRegisterError)
+        }
+    }
+
     pub fn set_clock_division(&mut self, division: u8) -> Result<(), Error<E>> {
         match division {
             1 => self.config_register.set_configurations(&mut [