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Let users configure the output_pin as open-drain.

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Continue to default to push-pull.
This commit is contained in:
Bryan Kadzban 2023-04-06 18:02:00 -07:00
parent 696b21bd92
commit 885606839f
1 changed files with 31 additions and 3 deletions
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34
esp-hal-common/src/ledc/channel.rs
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@ -42,11 +42,18 @@ pub enum Number {
pub mod config {
use crate::ledc::timer::{TimerIFace, TimerSpeed};
#[derive(Copy, Clone)]
pub enum PinConfig {
PushPull,
OpenDrain,
}
/// Channel configuration
#[derive(Copy, Clone)]
pub struct Config<'a, S: TimerSpeed> {
pub timer: &'a dyn TimerIFace<S>,
pub duty_pct: u8,
pub pin_config: PinConfig,
}
}
@ -67,6 +74,7 @@ pub trait ChannelHW<O: OutputPin> {
/// Configure Channel HW except for the duty which is set via
/// [`Self::set_duty_hw`].
fn configure_hw(&mut self) -> Result<(), Error>;
fn configure_hw_with_pin_config(&mut self, cfg: config::PinConfig) -> Result<(), Error>;
/// Set channel duty HW
fn set_duty_hw(&self, duty: u32);
@ -103,7 +111,7 @@ where
self.timer = Some(config.timer);
self.set_duty(config.duty_pct)?;
self.configure_hw()?;
self.configure_hw_with_pin_config(config.pin_config)?;
Ok(())
}
@ -298,12 +306,22 @@ where
/// Configure Channel HW except for the duty which is set via
/// [`Self::set_duty_hw`].
fn configure_hw(&mut self) -> Result<(), Error> {
self.configure_hw_with_pin_config(config::PinConfig::PushPull)
}
fn configure_hw_with_pin_config(&mut self, cfg: config::PinConfig) -> Result<(), Error> {
if let Some(timer) = self.timer {
if !timer.is_configured() {
return Err(Error::Timer);
}
self.output_pin.set_to_push_pull_output();
match cfg {
config::PinConfig::PushPull => {
self.output_pin.set_to_push_pull_output()
}
config::PinConfig::OpenDrain => {
self.output_pin.set_to_open_drain_output()
}
}
let timer_number = timer.get_number() as u8;
match self.number {
@ -377,12 +395,22 @@ where
{
/// Configure Channel HW
fn configure_hw(&mut self) -> Result<(), Error> {
self.configure_hw_with_pin_config(config::PinConfig::PushPull)
}
fn configure_hw_with_pin_config(&mut self, cfg: config::PinConfig) -> Result<(), Error> {
if let Some(timer) = self.timer {
if !timer.is_configured() {
return Err(Error::Timer);
}
self.output_pin.set_to_push_pull_output();
match cfg {
config::PinConfig::PushPull => {
self.output_pin.set_to_push_pull_output();
}
config::PinConfig::OpenDrain => {
self.output_pin.set_to_open_drain_output();
}
}
let timer_number = timer.get_number() as u8;
match self.number {