From 8e0b5333e3d275d20b2d7e668749263940d39d60 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Tue, 13 Jun 2017 17:20:23 -0500
Subject: [PATCH] add listen/unlisten to Capture
---
src/capture.rs | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/src/capture.rs b/src/capture.rs
index 6156680..89c111e 100644
--- a/src/capture.rs
+++ b/src/capture.rs
@@ -52,6 +52,18 @@ pub enum Error {
_Extensible,
}
+/// Interrupt event
+pub enum Event {
+ /// Capture on channel 1
+ Capture1,
+ /// Capture on channel 2
+ Capture2,
+ /// Capture on channel 3
+ Capture3,
+ /// Capture on channel 4
+ Capture4,
+}
+
/// Input capture interface
pub struct Capture<'a, T>(pub &'a T)
where
@@ -149,6 +161,30 @@ impl<'a> Capture<'a, TIM1> {
);
}
+ /// Starts listening for an interrupt `event`
+ pub fn listen(&self, event: Event) {
+ let tim1 = self.0;
+
+ match event {
+ Event::Capture1 => tim1.dier.modify(|_, w| w.cc1ie().set()),
+ Event::Capture2 => tim1.dier.modify(|_, w| w.cc2ie().set()),
+ Event::Capture3 => tim1.dier.modify(|_, w| w.cc3ie().set()),
+ Event::Capture4 => tim1.dier.modify(|_, w| w.cc4ie().set()),
+ }
+ }
+
+ /// Stops listening for an interrupt `event`
+ pub fn unlisten(&self, event: Event) {
+ let tim1 = self.0;
+
+ match event {
+ Event::Capture1 => tim1.dier.modify(|_, w| w.cc1ie().clear()),
+ Event::Capture2 => tim1.dier.modify(|_, w| w.cc2ie().clear()),
+ Event::Capture3 => tim1.dier.modify(|_, w| w.cc3ie().clear()),
+ Event::Capture4 => tim1.dier.modify(|_, w| w.cc4ie().clear()),
+ }
+ }
+
fn _set_resolution(&self, resolution: ::apb2::Ticks) {
let psc = u16(
resolution.0.checked_sub(1).expect("impossible resolution"),
@@ -420,6 +456,30 @@ where
);
}
+ /// Starts listening for an interrupt `event`
+ pub fn listen(&self, event: Event) {
+ let tim = self.0;
+
+ match event {
+ Event::Capture1 => tim.dier.modify(|_, w| w.cc1ie().set()),
+ Event::Capture2 => tim.dier.modify(|_, w| w.cc2ie().set()),
+ Event::Capture3 => tim.dier.modify(|_, w| w.cc3ie().set()),
+ Event::Capture4 => tim.dier.modify(|_, w| w.cc4ie().set()),
+ }
+ }
+
+ /// Stops listening for an interrupt `event`
+ pub fn unlisten(&self, event: Event) {
+ let tim = self.0;
+
+ match event {
+ Event::Capture1 => tim.dier.modify(|_, w| w.cc1ie().clear()),
+ Event::Capture2 => tim.dier.modify(|_, w| w.cc2ie().clear()),
+ Event::Capture3 => tim.dier.modify(|_, w| w.cc3ie().clear()),
+ Event::Capture4 => tim.dier.modify(|_, w| w.cc4ie().clear()),
+ }
+ }
+
fn _set_resolution(&self, resolution: ::apb1::Ticks) {
let psc = u16(
resolution.0.checked_sub(1).expect("impossible resolution"),
--
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