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https://github.com/Feliix42/ssd1675.git
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add custom error type to handle results
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parent
67c2b90b2a
commit
f59959c55c
3 changed files with 25 additions and 6 deletions
16
src/error.rs
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16
src/error.rs
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@ -0,0 +1,16 @@
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use core::fmt::{self, Debug};
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use hal::digital::v2::OutputPin;
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pub enum Error<GPIO: OutputPin> {
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/// A GPIO could not be set.
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Gpio(GPIO::Error),
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}
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impl<GPIO: OutputPin> Debug for Error<GPIO>
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Error::Gpio(_) => write!(f, "GPIO error"),
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}
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}
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}
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@ -1,3 +1,4 @@
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use crate::Error;
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use hal;
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use hal;
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// Section 15.2 of the HINK-E0213A07 data sheet says to hold for 10ms
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// Section 15.2 of the HINK-E0213A07 data sheet says to hold for 10ms
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@ -143,23 +144,23 @@ where
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{
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{
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type Error = SPI::Error;
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type Error = SPI::Error;
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fn reset<D: hal::blocking::delay::DelayMs<u8>>(&mut self, delay: &mut D) {
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fn reset<D: hal::blocking::delay::DelayMs<u8>>(&mut self, delay: &mut D){
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self.reset.set_low();
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self.reset.set_low().map_err::<Error<RESET>, _>(Error::Gpio).unwrap();
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delay.delay_ms(RESET_DELAY_MS);
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delay.delay_ms(RESET_DELAY_MS);
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self.reset.set_high();
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self.reset.set_high().map_err::<Error<RESET>, _>(Error::Gpio).unwrap();
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delay.delay_ms(RESET_DELAY_MS);
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delay.delay_ms(RESET_DELAY_MS);
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}
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}
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fn send_command(&mut self, command: u8) -> Result<(), Self::Error> {
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fn send_command(&mut self, command: u8) -> Result<(), Self::Error> {
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self.dc.set_low();
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self.dc.set_low().map_err::<Error<DC>, _>(Error::Gpio).unwrap();
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self.write(&[command])?;
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self.write(&[command])?;
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self.dc.set_high();
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self.dc.set_high().map_err::<Error<DC>, _>(Error::Gpio).unwrap();
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Ok(())
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Ok(())
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}
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}
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fn send_data(&mut self, data: &[u8]) -> Result<(), Self::Error> {
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fn send_data(&mut self, data: &[u8]) -> Result<(), Self::Error> {
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self.dc.set_high();
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self.dc.set_high().map_err::<Error<DC>, _>(Error::Gpio).unwrap();
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self.write(data)
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self.write(data)
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}
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}
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@ -47,12 +47,14 @@ mod color;
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pub mod command;
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pub mod command;
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pub mod config;
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pub mod config;
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pub mod display;
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pub mod display;
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pub mod error;
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pub mod graphics;
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pub mod graphics;
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pub mod interface;
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pub mod interface;
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pub use color::Color;
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pub use color::Color;
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pub use config::Builder;
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pub use config::Builder;
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pub use display::{Dimensions, Display, Rotation};
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pub use display::{Dimensions, Display, Rotation};
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pub use error::Error;
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pub use graphics::GraphicDisplay;
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pub use graphics::GraphicDisplay;
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pub use interface::DisplayInterface;
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pub use interface::DisplayInterface;
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pub use interface::Interface;
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pub use interface::Interface;
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