From 70856151b7fee72f2a9c1a6013801ab14c2bffdb Mon Sep 17 00:00:00 2001
From: Andrey Gusakov <dron0gus@gmail.com>
Date: Tue, 3 May 2022 17:18:20 +0300
Subject: [PATCH] pwm.cpp: allow external config

---
 firmware/pwm.cpp | 18 ++++++++++++++++--
 firmware/pwm.h   |  9 +++++++--
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/firmware/pwm.cpp b/firmware/pwm.cpp
index 72e44b8..c2f5f63 100644
--- a/firmware/pwm.cpp
+++ b/firmware/pwm.cpp
@@ -1,7 +1,5 @@
 #include "pwm.h"
 
-#include "hal.h"
-
 Pwm::Pwm(PWMDriver& driver, uint8_t channel, uint32_t counterFrequency, uint32_t counterPeriod)
     : m_driver(&driver)
     , m_channel(channel)
@@ -10,6 +8,14 @@ Pwm::Pwm(PWMDriver& driver, uint8_t channel, uint32_t counterFrequency, uint32_t
 {
 }
 
+Pwm::Pwm(PWMDriver& driver)
+    : m_driver(&driver)
+    , m_channel(0)
+    , m_counterFrequency(0)
+    , m_counterPeriod(0)
+{
+}
+
 void Pwm::Start()
 {
     PWMConfig config = {
@@ -32,6 +38,14 @@ void Pwm::Start()
     pwmStart(m_driver, &config);
 }
 
+void Pwm::Start(PWMConfig *config)
+{
+    m_counterFrequency = config->frequency;
+    m_counterPeriod = config->period;
+
+    pwmStart(m_driver, config);
+}
+
 float maxF(float i1, float i2) {
     return i1 > i2 ? i1 : i2;
 }
diff --git a/firmware/pwm.h b/firmware/pwm.h
index 834d86f..c878006 100644
--- a/firmware/pwm.h
+++ b/firmware/pwm.h
@@ -2,14 +2,19 @@
 
 #include <cstdint>
 
+/* for PWMConfig */
+#include "hal.h"
+
 struct PWMDriver;
 
 class Pwm
 {
 public:
     Pwm(PWMDriver& driver, uint8_t channel, uint32_t counterFrequency, uint32_t counterPeriod);
+    Pwm(PWMDriver& driver);
 
     void Start();
+    void Start(PWMConfig *config);
     void SetDuty(float duty);
     void SetDuty(int channel, float duty);
     float GetLastDuty() const;
@@ -17,7 +22,7 @@ public:
 private:
     PWMDriver* const m_driver;
     const uint8_t m_channel;
-    const uint32_t m_counterFrequency;
-    const uint16_t m_counterPeriod;
+    /* const */ uint32_t m_counterFrequency;
+    /* const */ uint16_t m_counterPeriod;
     float m_dutyFloat;
 };