From 60a79d178073ec1fe283a69fc3d98ebfebab193a Mon Sep 17 00:00:00 2001
From: linuswck <linuswck@m-labs.hk>
Date: Wed, 7 Feb 2024 17:18:00 +0800
Subject: [PATCH] rename get_term_status -> get_lf_mod_in_impedance

---
 src/laser_diode/laser_diode.rs |  6 +++---
 src/laser_diode/ld_ctrl.rs     | 15 +++++++++++++--
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/src/laser_diode/laser_diode.rs b/src/laser_diode/laser_diode.rs
index 253d4b4..fadda12 100644
--- a/src/laser_diode/laser_diode.rs
+++ b/src/laser_diode/laser_diode.rs
@@ -1,7 +1,7 @@
 use miniconf::Tree;
 use stm32f4xx_hal::pac::ADC2;
 use uom::si::electric_current::ampere;
-use crate::laser_diode::ld_ctrl::LdCtrl;
+use crate::laser_diode::ld_ctrl::{LdCtrl, Impedance};
 use crate::laser_diode::ld_pwr_exc_protector::{LdPwrExcProtector, self};
 use crate::laser_diode::pd_responsitivity;
 use core::marker::PhantomData;
@@ -175,7 +175,7 @@ impl LdDrive{
         LdPwrExcProtector::set_trigger_threshold_v(i / Settings::PD_MON_TRANSCONDUCTANCE);
     }
 
-    pub fn get_term_status(&mut self)->bool{
-        self.ctrl.get_term_status()
+    pub fn get_term_status(&mut self) -> Impedance {
+        self.ctrl.get_lf_mod_in_impedance()
     }
 }
diff --git a/src/laser_diode/ld_ctrl.rs b/src/laser_diode/ld_ctrl.rs
index 745c662..951e316 100644
--- a/src/laser_diode/ld_ctrl.rs
+++ b/src/laser_diode/ld_ctrl.rs
@@ -13,6 +13,12 @@ use uom::si::{
 use crate::laser_diode::max5719::{self, Dac};
 use crate::laser_diode::laser_diode::TransimpedanceUnit;
 
+#[derive(Debug)]
+pub enum Impedance {
+    Is50Ohm,
+    Not50Ohm,
+}
+
 pub trait ChannelPins {
     type CurrentSourceShort: OutputPin;
     type TerminationStatus: InputPin;
@@ -61,8 +67,13 @@ impl LdCtrl {
         self.phy.current_source_short_pin.set_high();
     }
 
-    pub fn get_term_status(&mut self)-> bool{
-        self.phy.termination_status_pin.is_high()
+    pub fn get_lf_mod_in_impedance(&mut self)-> Impedance {
+        if self.phy.termination_status_pin.is_high() {
+            Impedance::Is50Ohm
+        }
+        else {
+            Impedance::Not50Ohm
+        }
     }
 
     pub fn set_dac(&mut self, voltage: ElectricPotential, dac_out_v_max: ElectricPotential) -> ElectricPotential {