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extern crate serde_json;
use std::error;
use std::fmt;
use slog::Drain;
use xc2bit::*;
use crate::*;
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, Serialize, Deserialize)]
pub enum ParOutputFormat {
Jed,
Crbit,
}
#[derive(Clone, Debug)]
pub struct XC2ParOptions {
pub(crate) max_iter: u32,
pub(crate) rng_seed: [u32; 4],
output_fmt: ParOutputFormat,
}
impl XC2ParOptions {
pub fn new() -> Self {
Self {
max_iter: 1000,
rng_seed: [0, 0, 0, 1],
output_fmt: ParOutputFormat::Jed,
}
}
pub fn max_iter(&mut self, max_iter: u32) -> &mut Self {
self.max_iter = max_iter;
self
}
pub fn with_prng_seed(&mut self, seed: [u32; 4]) -> &mut Self {
self.rng_seed = seed;
self
}
pub fn output_format(&mut self, format: ParOutputFormat) -> &mut Self {
self.output_fmt = format;
self
}
}
impl Default for XC2ParOptions {
fn default() -> Self {
Self::new()
}
}
#[derive(Debug)]
pub enum PARFlowError {
SerdeError(serde_json::Error),
FrontendError(FrontendError),
IntermedToInputError(IntermedToInputError),
OutputWriteError(std::io::Error),
PARIterationsExceeded,
PARSanityCheckFailed(PARSanityResult),
}
impl error::Error for PARFlowError {
fn description(&self) -> &'static str {
match self {
&PARFlowError::SerdeError(_) => "json read failed",
&PARFlowError::FrontendError(_) => "frontend pass failed",
&PARFlowError::IntermedToInputError(_) => "intermediate pass failed",
&PARFlowError::OutputWriteError(_) => "writing output failed",
&PARFlowError::PARIterationsExceeded => "",
&PARFlowError::PARSanityCheckFailed(_) => "",
}
}
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match self {
&PARFlowError::SerdeError(ref inner) => {
Some(inner)
},
&PARFlowError::FrontendError(ref inner) => {
Some(inner)
},
&PARFlowError::IntermedToInputError(ref inner) => {
Some(inner)
},
&PARFlowError::OutputWriteError(ref inner) => {
Some(inner)
},
_ => None,
}
}
}
impl fmt::Display for PARFlowError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&PARFlowError::PARIterationsExceeded => {
write!(f, "maximum iterations exceeded")
},
&PARFlowError::PARSanityCheckFailed(_) => {
write!(f, "PAR sanity check failed")
},
&PARFlowError::SerdeError(ref inner) => {
write!(f, "{}", inner)
},
&PARFlowError::FrontendError(ref inner) => {
write!(f, "{}", inner)
},
&PARFlowError::IntermedToInputError(ref inner) => {
write!(f, "{}", inner)
},
&PARFlowError::OutputWriteError(ref inner) => {
write!(f, "{}", inner)
},
}
}
}
impl From<serde_json::Error> for PARFlowError {
fn from(inner: serde_json::Error) -> Self {
PARFlowError::SerdeError(inner)
}
}
impl From<FrontendError> for PARFlowError {
fn from(inner: FrontendError) -> Self {
PARFlowError::FrontendError(inner)
}
}
impl From<IntermedToInputError> for PARFlowError {
fn from(inner: IntermedToInputError) -> Self {
PARFlowError::IntermedToInputError(inner)
}
}
impl From<std::io::Error> for PARFlowError {
fn from(inner: std::io::Error) -> Self {
PARFlowError::OutputWriteError(inner)
}
}
pub fn xc2par_complete_flow<R, W, L>(options: &XC2ParOptions, device_type: XC2DeviceSpeedPackage, input: R, output: W,
logger: L) -> Result<(), PARFlowError> where R: std::io::Read, W: std::io::Write, L: Into<Option<slog::Logger>> {
let logger = logger.into().unwrap_or(slog::Logger::root(slog_stdlog::StdLog.fuse(), o!()));
let yosys_netlist = yosys_netlist_json::Netlist::from_reader(input)?;
let intermediate_graph = IntermediateGraph::from_yosys_netlist(&yosys_netlist,
logger.new(o!("pass" => "yosys -> intermediate")))?;
let mut input_graph = InputGraph::from_intermed_graph(&intermediate_graph,
logger.new(o!("pass" => "intermediate -> input")))?;
let par_result = do_par(&mut input_graph, device_type, options,
logger.new(o!("pass" => "PAR")));
match par_result {
PARResult::Success(x) => {
let bitstream = produce_bitstream(device_type, &input_graph, &x);
if options.output_fmt == ParOutputFormat::Jed {
bitstream.to_jed(output)?;
} else {
bitstream.to_crbit().write_to_writer(output)?;
}
Ok(())
},
PARResult::FailureSanity(x) => Err(PARFlowError::PARSanityCheckFailed(x)),
PARResult::FailureIterationsExceeded => Err(PARFlowError::PARIterationsExceeded),
}
}