NaxdyOrg/wiringop-rs
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feat: improve pin handout logic

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This commit is contained in:
Naxdy 2024-10-29 19:01:57 +01:00
parent c503a195b2
commit 33b4f2d218
Signed by: Naxdy
GPG key ID: CC15075846BCE91B
1 changed files with 11 additions and 12 deletions
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23
src/gpio.rs
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@ -17,12 +17,8 @@ pub enum GpioError {
WrongPinModeError(i32, PinMode, PinMode),
#[error("mode {0:?} is unsupported")]
UnsupportedModeError(PinMode),
}
#[derive(Error, Debug)]
pub enum PinRetrievalError {
#[error("pin {0} has already been retrieved")]
AlreadyRetrieved(i32),
PinAlreadyRetrieved(i32),
}
#[derive(PartialEq, Eq, Debug, Clone, Copy)]
@ -120,7 +116,7 @@ pub struct Pin {
}
impl Pin {
pub fn new(pin_id: i32) -> Result<Self, PinRetrievalError> {
pub fn new(pin_id: i32) -> Result<Self, GpioError> {
ensure_library_setup!();
let can_retrieve = !PINS_HANDED_OUT
@ -129,12 +125,13 @@ impl Pin {
.contains(&pin_id);
if can_retrieve {
Ok(Self {
pin_id,
pin_mode: PinMode::Uninitialized,
})
PINS_HANDED_OUT.lock().unwrap().push(pin_id);
let pin_mode = unsafe { ffi::getAlt(pin_id).try_into()? };
Ok(Self { pin_id, pin_mode })
} else {
Err(PinRetrievalError::AlreadyRetrieved(pin_id))
Err(GpioError::PinAlreadyRetrieved(pin_id))
}
}
@ -153,7 +150,9 @@ impl Pin {
pub fn get_gpio_mode(&mut self) -> Result<PinMode, GpioError> {
ensure_library_setup!();
unsafe { ffi::orangepi_get_gpio_mode(self.pin_id).try_into() }
self.pin_mode = unsafe { ffi::orangepi_get_gpio_mode(self.pin_id).try_into()? };
Ok(self.pin_mode)
}
pub fn set_gpio_mode(&mut self, mode: PinMode) -> Result<(), GpioError> {