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//! # UART Console module
//!
//! ## Encapsulates base trait for any console.
//! ## Wraps the UART console.
/// # Interface module
///
/// ## Provides trait for consoles.
pub mod interface {
use core::fmt;
/// # Write Trait
///
/// Structure must provide ways to:
/// - Write individual characters
/// - Write formatted strings
/// - Flush write queue
pub trait Write {
/// # Write Character
///
/// Writes an individual character to a console
fn write_char(&self, c: char);
/// # Write Format
///
/// Writes a formatted string to a console
fn write_fmt(&self, args: fmt::Arguments) -> fmt::Result;
/// # Flush
///
/// Flush console write queue
fn flush(&self);
}
/// # Statistics Trait
///
/// Structure must provide a way to:
/// - Get how many characters have been written
pub trait Statistics {
/// # Get Written Chars
///
/// Gets the statistic associated with how many
/// characters have been written to a console.
fn chars_written(&self) -> usize { 0 }
}
/// # All Trait
///
/// Structure must provide both Write + Statistics
pub trait All: Write + Statistics {}
}
/// # UART console
///
/// Returns a borrow for the UART writer
pub fn console() -> &'static crate::uart::Uart {
&crate::uart::UART_WRITER
}
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