From 41325641f087f6e01e31d7d5bd741becf0154e77 Mon Sep 17 00:00:00 2001
From: Diego Barrios Romero <eldruin@gmail.com>
Date: Wed, 7 Nov 2018 20:20:16 +0100
Subject: Implement ADC channel traits

---
 src/devices/channels.rs | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 src/devices/channels.rs

(limited to 'src/devices/channels.rs')

diff --git a/src/devices/channels.rs b/src/devices/channels.rs
new file mode 100644
index 0000000..35ad643
--- /dev/null
+++ b/src/devices/channels.rs
@@ -0,0 +1,32 @@
+//! ADC input channels
+use { Ads1x1x, ic, hal };
+
+/// ADC input channels
+#[allow(dead_code)]
+pub mod channel {
+    /// ADC input channel 0
+    pub struct A0;
+    /// ADC input channel 1
+    pub struct A1;
+    /// ADC input channel 2
+    pub struct A2;
+    /// ADC input channel 3
+    pub struct A3;
+}
+
+macro_rules! impl_channel {
+    ( $IC:ident, $CH:ident, $ID:expr ) => {
+        impl<DI, MODE> hal::adc::Channel<Ads1x1x<DI, ic::$IC, MODE>> for channel::$CH {
+            type ID = u8;
+
+            fn channel() -> Self::ID {
+                $ID
+            }
+        }
+    }
+}
+
+impl_channel!(Ads1013, A0, 0);
+impl_channel!(Ads1013, A1, 1);
+impl_channel!(Ads1113, A0, 0);
+impl_channel!(Ads1113, A1, 1);
-- 
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