From 9d5637b6d6d1e019e736ffbc6b983a4735aa50e1 Mon Sep 17 00:00:00 2001
From: Diego Barrios Romero <eldruin@gmail.com>
Date: Wed, 21 Nov 2018 08:00:08 +0100
Subject: Remove SPI interface

---
 src/interface.rs | 45 ---------------------------------------------
 src/lib.rs       |  1 -
 2 files changed, 46 deletions(-)

diff --git a/src/interface.rs b/src/interface.rs
index d22f776..3b42182 100644
--- a/src/interface.rs
+++ b/src/interface.rs
@@ -12,13 +12,6 @@ pub struct I2cInterface<I2C> {
     pub(crate) address : u8,
 }
 
-/// SPI interface
-#[derive(Debug, Default)]
-pub struct SpiInterface<SPI, CS> {
-    pub(crate) spi: SPI,
-    pub(crate) cs: CS
-}
-
 /// Write data
 pub trait WriteData : private::Sealed {
     /// Error type
@@ -40,26 +33,6 @@ where
     }
 }
 
-impl<SPI, CS, E> WriteData for SpiInterface<SPI, CS>
-where
-    SPI: blocking::spi::Write<u8, Error = E>,
-    CS:  hal::digital::OutputPin
-{
-    type Error = E;
-    fn write_register(&mut self, register: u8, data: u16) -> Result<(), Error<E>> {
-        self.cs.set_low();
-
-        let payload: [u8; 3] = [register + 0x80, (data >> 8) as u8, data as u8];
-        let result = self.spi
-                         .write(&payload)
-                         .map_err(Error::Comm);
-
-        self.cs.set_high();
-        result
-    }
-}
-
-
 /// Read data
 pub trait ReadData : private::Sealed {
     /// Error type
@@ -81,21 +54,3 @@ where
             .and(Ok((u16::from(data[0]) << 8) | u16::from(data[1])))
     }
 }
-
-impl<SPI, CS, E> ReadData for SpiInterface<SPI, CS>
-where
-    SPI: blocking::spi::Transfer<u8, Error = E>,
-    CS:  hal::digital::OutputPin
-{
-    type Error = E;
-    fn read_register(&mut self, register: u8) -> Result<u16, Error<E>> {
-        self.cs.set_low();
-        let mut data = [register, 0, 0];
-        let result = self.spi
-                         .transfer(&mut data)
-                         .map_err(Error::Comm);
-        self.cs.set_high();
-        let result = result?;
-        Ok((u16::from(result[0]) << 8) | u16::from(result[1]))
-    }
-}
diff --git a/src/lib.rs b/src/lib.rs
index 5e94b43..d92f8bb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -459,7 +459,6 @@ mod private {
     pub trait Sealed {}
 
     impl<I2C> Sealed for interface::I2cInterface<I2C> {}
-    impl<SPI, CS> Sealed for interface::SpiInterface<SPI, CS> {}
 
     impl Sealed for ic::Resolution12Bit {}
     impl Sealed for ic::Resolution16Bit {}
-- 
cgit v1.2.3-54-g00ecf