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Remove LPSPI prototyping leftovers #164

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merged 2 commits into from
Jun 14, 2024
Merged

Remove LPSPI prototyping leftovers #164

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5969e7c
Remove unused associated constants from trait
mciantyre Jun 13, 2024
0cb3b8d
Remove unused LPSPI I/O helpers
mciantyre Jun 13, 2024
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25 changes: 0 additions & 25 deletions src/common/lpspi.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1288,9 +1288,6 @@ impl<P, const N: u8> eh02::blocking::spi::Write<u32> for Lpspi<P, N> {

/// Describes SPI words that can participate in transactions.
trait Word: Copy + Into<u32> + TryFrom<u32> {
const MAX: Self;
const ZERO: Self;

/// Repeatedly call `provider` to produce yourself,
/// then turn yourself into a LPSPI word.
fn pack_word(bit_order: BitOrder, provider: impl FnMut() -> Option<Self>) -> u32;
Expand All @@ -1301,8 +1298,6 @@ trait Word: Copy + Into<u32> + TryFrom<u32> {
}

impl Word for u8 {
const MAX: u8 = u8::MAX;
const ZERO: u8 = 0;
fn pack_word(bit_order: BitOrder, mut provider: impl FnMut() -> Option<Self>) -> u32 {
let mut word = 0;
match bit_order {
Expand Down Expand Up @@ -1333,8 +1328,6 @@ impl Word for u8 {
}

impl Word for u16 {
const MAX: u16 = u16::MAX;
const ZERO: u16 = 0;
fn pack_word(bit_order: BitOrder, mut provider: impl FnMut() -> Option<Self>) -> u32 {
let mut word = 0;
match bit_order {
Expand Down Expand Up @@ -1365,8 +1358,6 @@ impl Word for u16 {
}

impl Word for u32 {
const MAX: u32 = u32::MAX;
const ZERO: u32 = 0;
fn pack_word(_: BitOrder, mut provider: impl FnMut() -> Option<Self>) -> u32 {
provider().unwrap_or(0)
}
Expand Down Expand Up @@ -1441,15 +1432,6 @@ where
}
}

/// Transmits dummy values.
struct TransmitDummies;

impl TransmitData for TransmitDummies {
fn next_word(&mut self, _: BitOrder) -> u32 {
u32::MAX
}
}

/// Receive data into a buffer.
struct ReceiveBuffer<'a, W> {
/// The write position.
Expand Down Expand Up @@ -1504,13 +1486,6 @@ where
}
}

/// Receive dummy data.
struct ReceiveDummies;

impl ReceiveData for ReceiveDummies {
fn next_word(&mut self, _: u32) {}
}

/// Computes how may Ws fit inside a LPSPI word.
const fn per_word<W: Word>() -> usize {
core::mem::size_of::<u32>() / core::mem::size_of::<W>()
Expand Down
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