From aac42199f6857f04a61314850aa7ccef0429f058 Mon Sep 17 00:00:00 2001
From: "Ben V. Brown" <Ralim@Ralimtek.com>
Date: Mon, 18 Jul 2022 22:54:56 +1000
Subject: [PATCH] getTipResistanceX10()

---
 source/Core/BSP/BSP_Power.h      | 3 +++
 source/Core/BSP/MHP30/Power.cpp  | 2 ++
 source/Core/BSP/Miniware/BSP.cpp | 2 ++
 source/Core/BSP/Pine64/BSP.cpp   | 2 ++
 source/Core/Src/power.cpp        | 2 +-
 5 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/source/Core/BSP/BSP_Power.h b/source/Core/BSP/BSP_Power.h
index a924a1ec..386ffc74 100644
--- a/source/Core/BSP/BSP_Power.h
+++ b/source/Core/BSP/BSP_Power.h
@@ -16,6 +16,9 @@ extern "C" {
 // Can be used to check any details for the power system
 void power_check();
 
+// Return the tip resistance in x10 ohms (8.5 -> 85)
+uint8_t getTipResistanceX10();
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/Core/BSP/MHP30/Power.cpp b/source/Core/BSP/MHP30/Power.cpp
index 661a4bb4..5b508ada 100644
--- a/source/Core/BSP/MHP30/Power.cpp
+++ b/source/Core/BSP/MHP30/Power.cpp
@@ -17,3 +17,5 @@ void power_check() {
 }
 
 bool getIsPoweredByDCIN() { return false; }
+
+uint8_t getTipResistanceX10() { return TIP_RESISTANCE; }
\ No newline at end of file
diff --git a/source/Core/BSP/Miniware/BSP.cpp b/source/Core/BSP/Miniware/BSP.cpp
index 2e86af22..cb7d5248 100644
--- a/source/Core/BSP/Miniware/BSP.cpp
+++ b/source/Core/BSP/Miniware/BSP.cpp
@@ -288,3 +288,5 @@ uint64_t getDeviceID() {
   //
   return HAL_GetUIDw0() | ((uint64_t)HAL_GetUIDw1() << 32);
 }
+
+uint8_t getTipResistanceX10() { return TIP_RESISTANCE; }
\ No newline at end of file
diff --git a/source/Core/BSP/Pine64/BSP.cpp b/source/Core/BSP/Pine64/BSP.cpp
index 3b8df2eb..0b84339e 100644
--- a/source/Core/BSP/Pine64/BSP.cpp
+++ b/source/Core/BSP/Pine64/BSP.cpp
@@ -93,3 +93,5 @@ void setStatusLED(const enum StatusLED state) {}
 
 uint8_t  preStartChecks() { return 0; }
 uint64_t getDeviceID() { return dbg_id_get(); }
+
+uint8_t getTipResistanceX10() { return TIP_RESISTANCE; }
\ No newline at end of file
diff --git a/source/Core/Src/power.cpp b/source/Core/Src/power.cpp
index 2fcc120b..593c4945 100644
--- a/source/Core/Src/power.cpp
+++ b/source/Core/Src/power.cpp
@@ -49,7 +49,7 @@ uint32_t availableW10(uint8_t sample) {
   //				R = R*10
   // P therefore is in V^2*100/R*10 = W*10.
   uint32_t v                 = getInputVoltageX10(getSettingValue(SettingsOptions::VoltageDiv), sample); // 100 = 10v
-  uint32_t availableWattsX10 = (v * v) / TIP_RESISTANCE;
+  uint32_t availableWattsX10 = (v * v) / getTipResistanceX10();
   // However, 100% duty cycle is not possible as there is a dead time while the ADC takes a reading
   // Therefore need to scale available milliwats by this