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add config skeleton

This commit is contained in:
Sebastien Bourdeauducq 2020-06-13 16:44:54 +08:00
parent f52f10abc2
commit da6bda9a06
2 changed files with 71 additions and 0 deletions

65
src/runtime/src/config.rs Normal file
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@ -0,0 +1,65 @@
use log::info;
use core::fmt;
use alloc::{vec::Vec, string::String, string::FromUtf8Error};
use core_io as io;
use libboard_zynq::sdio;
use crate::sd_reader;
#[derive(Debug)]
pub enum Error {
SdError(sdio::sd_card::CardInitializationError),
IoError(io::Error),
Utf8Error(FromUtf8Error),
}
pub type Result<T> = core::result::Result<T, Error>;
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Error::SdError(error) => write!(f, "SD error: {:?}", error), // TODO: Display for CardInitializationError?
Error::IoError(error) => write!(f, "I/O error: {}", error),
Error::Utf8Error(error) => write!(f, "UTF-8 error: {}", error),
}
}
}
impl From<sdio::sd_card::CardInitializationError> for Error {
fn from(error: sdio::sd_card::CardInitializationError) -> Self {
Error::SdError(error)
}
}
impl From<io::Error> for Error {
fn from(error: io::Error) -> Self {
Error::IoError(error)
}
}
impl From<FromUtf8Error> for Error {
fn from(error: FromUtf8Error) -> Self {
Error::Utf8Error(error)
}
}
pub fn read(key: &str) -> Result<Vec<u8>> {
let sdio = sdio::SDIO::sdio0(true);
let mut sd = sdio::sd_card::SdCard::from_sdio(sdio)?;
let reader = sd_reader::SdReader::new(&mut sd);
let fs = reader.mount_fatfs(sd_reader::PartitionEntry::Entry1)?;
let root_dir = fs.root_dir();
for entry in root_dir.iter() {
if let Ok(entry) = entry {
let bytes = entry.short_file_name_as_bytes();
info!("{}", core::str::from_utf8(bytes).unwrap());
}
}
Err(sdio::sd_card::CardInitializationError::NoCardInserted)? // TODO
}
pub fn read_str(key: &str) -> Result<String> {
Ok(String::from_utf8(read(key)?)?)
}

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@ -12,6 +12,7 @@ use libboard_zynq::{timer::GlobalTimer, logger, devc};
use libsupport_zynq::ram;
mod sd_reader;
mod config;
mod proto_core_io;
mod proto_async;
mod comms;
@ -45,6 +46,11 @@ pub fn main_core0() {
ram::init_alloc_linker();
match config::read_str("foo") {
Ok(val) => info!("read: {}", val),
Err(error) => info!("failed to read config: {}", error),
}
let devc = devc::DevC::new();
if devc.is_done() {
info!("gateware already loaded");