netboot #100

Closed
pca006132 wants to merge 4 commits from pca006132/artiq-zynq:netboot into master
20 changed files with 664 additions and 1063 deletions

View File

@ -15,7 +15,7 @@ let
version = "0.1.0"; version = "0.1.0";
src = ./src; src = ./src;
cargoSha256 = "17qqaf3fpgxd8my721i8djkcc8y04xpi50la61s2pmr6lgdnj0wi"; cargoSha256 = "0mf4jyhirkz3grcp2459b8rhw36xkx3rhpz6af0j4knyxb2w707n";
nativeBuildInputs = [ nativeBuildInputs = [
pkgs.gnumake pkgs.gnumake
@ -32,8 +32,10 @@ let
installPhase = '' installPhase = ''
mkdir -p $out $out/nix-support mkdir -p $out $out/nix-support
cp ../build/runtime.bin $out/runtime.bin
Outdated
Review

Call it runtime.bin for consistency.

Call it runtime.bin for consistency.
cp ../build/firmware/armv7-none-eabihf/release/runtime $out/runtime.elf cp ../build/firmware/armv7-none-eabihf/release/runtime $out/runtime.elf
cp ../build/firmware/armv7-none-eabihf/release/szl $out/szl.elf cp ../build/firmware/armv7-none-eabihf/debug/szl $out/szl.elf
echo file binary-dist $out/runtime.bin >> $out/nix-support/hydra-build-products
echo file binary-dist $out/runtime.elf >> $out/nix-support/hydra-build-products echo file binary-dist $out/runtime.elf >> $out/nix-support/hydra-build-products
echo file binary-dist $out/szl.elf >> $out/nix-support/hydra-build-products echo file binary-dist $out/szl.elf >> $out/nix-support/hydra-build-products
''; '';
@ -60,6 +62,7 @@ let
'' ''
mkdir $out mkdir $out
ln -s ${firmware}/szl.elf $out ln -s ${firmware}/szl.elf $out
ln -s ${firmware}/runtime.bin $out
ln -s ${gateware}/top.bit $out ln -s ${gateware}/top.bit $out
''; '';
sd = pkgs.runCommand "zc706-${variant}-sd" sd = pkgs.runCommand "zc706-${variant}-sd"
@ -72,12 +75,14 @@ let
bifdir=`mktemp -d` bifdir=`mktemp -d`
cd $bifdir cd $bifdir
ln -s ${firmware}/szl.elf szl.elf ln -s ${firmware}/szl.elf szl.elf
ln -s ${firmware}/runtime.elf runtime.elf
ln -s ${gateware}/top.bit top.bit ln -s ${gateware}/top.bit top.bit
cat > boot.bif << EOF cat > boot.bif << EOF
the_ROM_image: the_ROM_image:
{ {
[bootloader]szl.elf [bootloader]szl.elf
top.bit top.bit
runtime.elf
} }
EOF EOF
mkdir $out $out/nix-support mkdir $out $out/nix-support

View File

@ -4,8 +4,9 @@ set -e
impure=0 impure=0
load_bitstream=1 load_bitstream=1
board_host="192.168.1.52"
while getopts "h:il" opt; do while getopts "ilb:" opt; do
case "$opt" in case "$opt" in
\?) exit 1 \?) exit 1
;; ;;
@ -13,6 +14,8 @@ while getopts "h:il" opt; do
;; ;;
l) load_bitstream=0 l) load_bitstream=0
;; ;;
b) board_host=$OPTARG
;;
esac esac
done done
@ -21,12 +24,16 @@ load_bitstream_cmd=""
cd openocd cd openocd
if [ $impure -eq 1 ]; then if [ $impure -eq 1 ]; then
if [ $load_bitstream -eq 1 ]; then if [ $load_bitstream -eq 1 ]; then
load_bitstream_cmd="pld load 0 ../build/gateware/top.bit;" load_bitstream_cmd="-g ../build/gateware/top.bit"
fi fi
openocd -f zc706.cfg -c "$load_bitstream_cmd load_image ../build/firmware/armv7-none-eabihf/release/szl; resume 0; exit" openocd -f zc706.cfg -c "load_image ../build/firmware/armv7-none-eabihf/debug/szl; resume 0; exit"
sleep 5
Outdated
Review

No delay?

No delay?
artiq_netboot $load_bitstream_cmd -f ../build/runtime.bin -b $board_host
else else
if [ $load_bitstream -eq 1 ]; then if [ $load_bitstream -eq 1 ]; then
load_bitstream_cmd="pld load 0 ../result/top.bit;" load_bitstream_cmd="-g ../result/top.bit"
fi fi
openocd -f zc706.cfg -c "$load_bitstream_cmd load_image ../result/szl.elf; resume 0; exit" openocd -f zc706.cfg -c "load_image ../result/szl.elf; resume 0; exit"
sleep 5
artiq_netboot $load_bitstream_cmd -f ../result/runtime.bin -b $board_host
fi fi

View File

@ -8,6 +8,7 @@ pure_dir="result"
impure_dir="build" impure_dir="build"
sshopts="" sshopts=""
load_bitstream=1 load_bitstream=1
board_host="192.168.1.52"
while getopts "h:id:o:l" opt; do while getopts "h:id:o:l" opt; do
case "$opt" in case "$opt" in
@ -24,29 +25,32 @@ while getopts "h:id:o:l" opt; do
;; ;;
l) load_bitstream=0 l) load_bitstream=0
;; ;;
b) board_host=$OPTARG
;;
esac esac
done done
target_folder="/tmp/zynq-$USER" target_folder="/tmp/zynq-$USER"
load_bitstream_cmd="" load_bitstream_cmd=""
if [ $load_bitstream -eq 1 ]; then
load_bitstream_cmd="pld load 0 top.bit;"
fi
echo "Creating $target_folder..." echo "Creating $target_folder..."
ssh $sshopts $target_host "mkdir -p $target_folder" ssh $sshopts $target_host "mkdir -p $target_folder"
echo "Copying files..." echo "Copying files..."
rsync -e "ssh $sshopts" openocd/* $target_host:$target_folder rsync -e "ssh $sshopts" openocd/* $target_host:$target_folder
if [ $impure -eq 1 ]; then if [ $impure -eq 1 ]; then
rsync -e "ssh $sshopts" $impure_dir/firmware/armv7-none-eabihf/release/szl $target_host:$target_folder/szl.elf
if [ $load_bitstream -eq 1 ]; then if [ $load_bitstream -eq 1 ]; then
rsync -e "ssh $sshopts" $impure_dir/gateware/top.bit $target_host:$target_folder load_bitstream_cmd="-g build/gateware/top.bit"
fi fi
firmware="build/runtime.bin"
rsync -e "ssh $sshopts" $impure_dir/firmware/armv7-none-eabihf/debug/szl $target_host:$target_folder/szl.elf
else else
rsync -e "ssh $sshopts" -Lc $pure_dir/szl.elf $target_host:$target_folder
if [ $load_bitstream -eq 1 ]; then if [ $load_bitstream -eq 1 ]; then
rsync -e "ssh $sshopts" -Lc $pure_dir/top.bit $target_host:$target_folder load_bitstream_cmd="-g result/top.bit"
fi fi
firmware="result/runtime.bin"
rsync -e "ssh $sshopts" -Lc $pure_dir/szl.elf $target_host:$target_folder
fi fi
echo "Programming board..." echo "Programming board..."
ssh $sshopts $target_host "cd $target_folder; openocd -f zc706.cfg -c'$load_bitstream_cmd load_image szl.elf; resume 0; exit'" ssh $sshopts $target_host "cd $target_folder; openocd -f zc706.cfg -c'load_image szl.elf; resume 0; exit'"
sleep 5
artiq_netboot $load_bitstream_cmd -f $firmware -b $board_host

44
src/Cargo.lock generated
View File

@ -68,22 +68,6 @@ version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0f8cb7306107e4b10e64994de6d3274bd08996a7c1322a27b86482392f96be0a" checksum = "0f8cb7306107e4b10e64994de6d3274bd08996a7c1322a27b86482392f96be0a"
[[package]]
name = "cstr_core"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "edf9ff5f1182cea3b0f4269dd3edf146b5bfedc5dc8a29b95edf855f438786b7"
dependencies = [
"cty",
"memchr",
]
[[package]]
name = "cty"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7313c0d620d0cb4dbd9d019e461a4beb501071ff46ec0ab933efb4daa76d73e3"
[[package]] [[package]]
name = "dwarf" name = "dwarf"
version = "0.0.0" version = "0.0.0"
@ -203,7 +187,7 @@ dependencies = [
[[package]] [[package]]
name = "libasync" name = "libasync"
version = "0.0.0" version = "0.0.0"
source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#273f9ea72b738c1c85fdc398c3486c2f0564881e" source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#a73df780d0d0e757738f27feac162904f5bf93f9"
dependencies = [ dependencies = [
"embedded-hal", "embedded-hal",
"libcortex_a9", "libcortex_a9",
@ -215,7 +199,7 @@ dependencies = [
[[package]] [[package]]
name = "libboard_zynq" name = "libboard_zynq"
version = "0.0.0" version = "0.0.0"
source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#273f9ea72b738c1c85fdc398c3486c2f0564881e" source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#a73df780d0d0e757738f27feac162904f5bf93f9"
dependencies = [ dependencies = [
"bit_field", "bit_field",
"embedded-hal", "embedded-hal",
@ -236,10 +220,20 @@ dependencies = [
"libboard_zynq", "libboard_zynq",
] ]
[[package]]
name = "libconfig"
version = "0.1.0"
dependencies = [
"core_io",
"fatfs",
"libboard_zynq",
"log",
]
[[package]] [[package]]
name = "libcortex_a9" name = "libcortex_a9"
version = "0.0.0" version = "0.0.0"
source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#273f9ea72b738c1c85fdc398c3486c2f0564881e" source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#a73df780d0d0e757738f27feac162904f5bf93f9"
dependencies = [ dependencies = [
"bit_field", "bit_field",
"libregister", "libregister",
@ -255,7 +249,7 @@ checksum = "c7d73b3f436185384286bd8098d17ec07c9a7d2388a6599f824d8502b529702a"
[[package]] [[package]]
name = "libregister" name = "libregister"
version = "0.0.0" version = "0.0.0"
source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#273f9ea72b738c1c85fdc398c3486c2f0564881e" source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#a73df780d0d0e757738f27feac162904f5bf93f9"
dependencies = [ dependencies = [
"bit_field", "bit_field",
"vcell", "vcell",
@ -265,7 +259,7 @@ dependencies = [
[[package]] [[package]]
name = "libsupport_zynq" name = "libsupport_zynq"
version = "0.0.0" version = "0.0.0"
source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#273f9ea72b738c1c85fdc398c3486c2f0564881e" source = "git+https://git.m-labs.hk/M-Labs/zynq-rs.git#a73df780d0d0e757738f27feac162904f5bf93f9"
dependencies = [ dependencies = [
"compiler_builtins", "compiler_builtins",
"libboard_zynq", "libboard_zynq",
@ -416,11 +410,11 @@ dependencies = [
"dwarf", "dwarf",
"dyld", "dyld",
"embedded-hal", "embedded-hal",
"fatfs",
"futures", "futures",
"libasync", "libasync",
"libboard_zynq", "libboard_zynq",
"libc", "libc",
"libconfig",
"libcortex_a9", "libcortex_a9",
"libm", "libm",
"libregister", "libregister",
@ -461,10 +455,12 @@ dependencies = [
name = "szl" name = "szl"
version = "0.1.0" version = "0.1.0"
dependencies = [ dependencies = [
"cc", "byteorder",
"cstr_core", "core_io",
"libboard_zynq", "libboard_zynq",
"libconfig",
"libcortex_a9", "libcortex_a9",
"libregister",
"libsupport_zynq", "libsupport_zynq",
"log", "log",
] ]

View File

@ -2,6 +2,7 @@
members = [ members = [
"libc", "libc",
"libdyld", "libdyld",
"libconfig",
"libcoreio", "libcoreio",
"libdwarf", "libdwarf",
"libunwind", "libunwind",
@ -9,6 +10,16 @@ members = [
"szl" "szl"
] ]
# Note: we are using dev profile for szl to override the opt-level only
[profile.dev]
panic = "abort"
debug = true
codegen-units = 1
opt-level = 'z'
lto = true
debug-assertions = false
overflow-checks = false
[profile.release] [profile.release]
panic = "abort" panic = "abort"
debug = true debug = true
@ -16,13 +27,6 @@ codegen-units = 1
opt-level = 's' opt-level = 's'
lto = true lto = true
[profile.release.package.smoltcp]
opt-level = 2
[profile.release.package.libasync]
opt-level = 2
[profile.release.package.libboard_zynq]
opt-level = 2
[patch.crates-io] [patch.crates-io]
core_io = { path = "./libcoreio" } core_io = { path = "./libcoreio" }
compiler_builtins = { git = "https://git.m-labs.hk/M-Labs/compiler-builtins-zynq.git"} compiler_builtins = { git = "https://git.m-labs.hk/M-Labs/compiler-builtins-zynq.git"}

View File

@ -1,6 +1,6 @@
VARIANT := simple VARIANT := simple
all: ../build/firmware/armv7-none-eabihf/release/szl all: ../build/firmware/armv7-none-eabihf/release/szl ../build/firmware/armv7-none-eabihf/release/runtime
.PHONY: all .PHONY: all
@ -11,10 +11,7 @@ all: ../build/firmware/armv7-none-eabihf/release/szl
../build/firmware/armv7-none-eabihf/release/runtime: ../build/pl.rs ../build/rustc-cfg $(shell find . -path ./szl -prune -o -print) ../build/firmware/armv7-none-eabihf/release/runtime: ../build/pl.rs ../build/rustc-cfg $(shell find . -path ./szl -prune -o -print)
XBUILD_SYSROOT_PATH=`pwd`/../build/sysroot cargo xbuild --release -p runtime --target-dir ../build/firmware XBUILD_SYSROOT_PATH=`pwd`/../build/sysroot cargo xbuild --release -p runtime --target-dir ../build/firmware
llvm-objcopy -O binary ../build/firmware/armv7-none-eabihf/release/runtime ../build/runtime.bin
../build/szl-payload.bin.lzma: ../build/firmware/armv7-none-eabihf/release/runtime ../build/firmware/armv7-none-eabihf/release/szl: .cargo/* armv7-none-eabihf.json Cargo.lock Cargo.toml szl/* szl/src/*
llvm-objcopy -O binary ../build/firmware/armv7-none-eabihf/release/runtime ../build/szl-payload.bin XBUILD_SYSROOT_PATH=`pwd`/../build/sysroot cargo xbuild -p szl --target-dir ../build/firmware
lzma --keep -f ../build/szl-payload.bin
../build/firmware/armv7-none-eabihf/release/szl: .cargo/* armv7-none-eabihf.json Cargo.lock Cargo.toml szl/* szl/src/* ../build/szl-payload.bin.lzma
XBUILD_SYSROOT_PATH=`pwd`/../build/sysroot cargo xbuild --release -p szl --target-dir ../build/firmware

15
src/libconfig/Cargo.toml Normal file
View File

@ -0,0 +1,15 @@
[package]
name = "libconfig"
version = "0.1.0"
authors = ["M-Labs"]
edition = "2018"
[dependencies]
libboard_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
core_io = { version = "0.1", features = ["collections"] }
fatfs = { version = "0.3", features = ["core_io"], default-features = false }
log = "0.4"
[features]
ipv6 = []

View File

@ -1,10 +1,15 @@
use crate::sd_reader; #![no_std]
use core::fmt; extern crate alloc;
use alloc::{string::FromUtf8Error, string::String, vec::Vec};
use core_io::{self as io, BufRead, BufReader, Read};
use core::fmt;
use alloc::{string::FromUtf8Error, string::String, vec::Vec, rc::Rc};
use core_io::{self as io, BufRead, BufReader, Read};
use libboard_zynq::sdio; use libboard_zynq::sdio;
pub mod sd_reader;
pub mod net_settings;
pub mod bootgen;
#[derive(Debug)] #[derive(Debug)]
pub enum Error<'a> { pub enum Error<'a> {
SdError(sdio::sd_card::CardInitializationError), SdError(sdio::sd_card::CardInitializationError),
@ -63,7 +68,7 @@ fn parse_config<'a>(
} }
pub struct Config { pub struct Config {
fs: Option<fatfs::FileSystem<sd_reader::SdReader>>, fs: Option<Rc<fatfs::FileSystem<sd_reader::SdReader>>>,
} }
impl Config { impl Config {
@ -76,7 +81,11 @@ impl Config {
let reader = sd_reader::SdReader::new(sd); let reader = sd_reader::SdReader::new(sd);
let fs = reader.mount_fatfs(sd_reader::PartitionEntry::Entry1)?; let fs = reader.mount_fatfs(sd_reader::PartitionEntry::Entry1)?;
Ok(Config { fs: Some(fs) }) Ok(Config { fs: Some(Rc::new(fs)) })
}
pub fn from_fs(fs: Option<Rc<fatfs::FileSystem<sd_reader::SdReader>>>) -> Self {
Config { fs }
} }
pub fn new_dummy() -> Self { pub fn new_dummy() -> Self {

View File

@ -2,31 +2,37 @@ use core::fmt;
use libboard_zynq::smoltcp::wire::{EthernetAddress, IpAddress}; use libboard_zynq::smoltcp::wire::{EthernetAddress, IpAddress};
use crate::config; use super::Config;
pub struct NetAddresses { pub struct NetAddresses {
pub hardware_addr: EthernetAddress, pub hardware_addr: EthernetAddress,
pub ipv4_addr: IpAddress, pub ipv4_addr: IpAddress,
#[cfg(feature = "ipv6")]
pub ipv6_ll_addr: IpAddress, pub ipv6_ll_addr: IpAddress,
#[cfg(feature = "ipv6")]
pub ipv6_addr: Option<IpAddress> pub ipv6_addr: Option<IpAddress>
} }
impl fmt::Display for NetAddresses { impl fmt::Display for NetAddresses {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "MAC={} IPv4={} IPv6-LL={} IPv6=", write!(f, "MAC={} IPv4={} ",
self.hardware_addr, self.ipv4_addr, self.ipv6_ll_addr)?; self.hardware_addr, self.ipv4_addr)?;
#[cfg(feature = "ipv6")]
{
write!(f, "IPv6-LL={}", self.ipv6_ll_addr)?;
match self.ipv6_addr { match self.ipv6_addr {
Some(addr) => write!(f, "{}", addr)?, Some(addr) => write!(f, " {}", addr)?,
None => write!(f, "no configured address")? None => write!(f, " IPv6: no configured address")?
}
} }
Ok(()) Ok(())
} }
} }
pub fn get_adresses(cfg: &config::Config) -> NetAddresses { pub fn get_adresses(cfg: &Config) -> NetAddresses {
let mut hardware_addr = EthernetAddress([0x02, 0x00, 0x00, 0x00, 0x00, 0x52]); let mut hardware_addr = EthernetAddress([0x02, 0x00, 0x00, 0x00, 0x00, 0x52]);
let mut ipv4_addr = IpAddress::v4(192, 168, 1, 52); let mut ipv4_addr = IpAddress::v4(192, 168, 1, 52);
let mut ipv6_addr = None;
if let Ok(Ok(addr)) = cfg.read_str("mac").map(|s| s.parse()) { if let Ok(Ok(addr)) = cfg.read_str("mac").map(|s| s.parse()) {
hardware_addr = addr; hardware_addr = addr;
@ -34,10 +40,10 @@ pub fn get_adresses(cfg: &config::Config) -> NetAddresses {
if let Ok(Ok(addr)) = cfg.read_str("ip").map(|s| s.parse()) { if let Ok(Ok(addr)) = cfg.read_str("ip").map(|s| s.parse()) {
ipv4_addr = addr; ipv4_addr = addr;
} }
if let Ok(Ok(addr)) = cfg.read_str("ip6").map(|s| s.parse()) { #[cfg(feature = "ipv6")]
ipv6_addr = Some(addr); let ipv6_addr = cfg.read_str("ipv6").ok().and_then(|s| s.parse().ok());
}
#[cfg(feature = "ipv6")]
let ipv6_ll_addr = IpAddress::v6( let ipv6_ll_addr = IpAddress::v6(
0xfe80, 0x0000, 0x0000, 0x0000, 0xfe80, 0x0000, 0x0000, 0x0000,
(((hardware_addr.0[0] ^ 0x02) as u16) << 8) | (hardware_addr.0[1] as u16), (((hardware_addr.0[0] ^ 0x02) as u16) << 8) | (hardware_addr.0[1] as u16),
@ -46,9 +52,11 @@ pub fn get_adresses(cfg: &config::Config) -> NetAddresses {
((hardware_addr.0[4] as u16) << 8) | (hardware_addr.0[5] as u16)); ((hardware_addr.0[4] as u16) << 8) | (hardware_addr.0[5] as u16));
NetAddresses { NetAddresses {
hardware_addr: hardware_addr, hardware_addr,
ipv4_addr: ipv4_addr, ipv4_addr,
ipv6_ll_addr: ipv6_ll_addr, #[cfg(feature = "ipv6")]
ipv6_addr: ipv6_addr ipv6_ll_addr,
#[cfg(feature = "ipv6")]
ipv6_addr
} }
} }

View File

@ -21,12 +21,11 @@ byteorder = { version = "1.3", default-features = false }
void = { version = "1", default-features = false } void = { version = "1", default-features = false }
futures = { version = "0.3", default-features = false, features = ["async-await"] } futures = { version = "0.3", default-features = false, features = ["async-await"] }
async-recursion = "0.3" async-recursion = "0.3"
fatfs = { version = "0.3", features = ["core_io"], default-features = false }
log_buffer = { version = "1.2" } log_buffer = { version = "1.2" }
libm = { version = "0.2", features = ["unstable"] } libm = { version = "0.2", features = ["unstable"] }
vcell = "0.1" vcell = "0.1"
libboard_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } libboard_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git", features = ["ipv6"]}
libsupport_zynq = { default-features = false, features = ["alloc_core"], git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } libsupport_zynq = { default-features = false, features = ["alloc_core"], git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
libcortex_a9 = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } libcortex_a9 = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
libasync = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } libasync = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
@ -36,3 +35,4 @@ dyld = { path = "../libdyld" }
dwarf = { path = "../libdwarf" } dwarf = { path = "../libdwarf" }
unwind = { path = "../libunwind" } unwind = { path = "../libunwind" }
libc = { path = "../libc" } libc = { path = "../libc" }
libconfig = { path = "../libconfig", features = ["ipv6"]}

View File

@ -20,9 +20,8 @@ use libboard_zynq::{
use libcortex_a9::{semaphore::Semaphore, mutex::Mutex}; use libcortex_a9::{semaphore::Semaphore, mutex::Mutex};
use futures::{select_biased, future::FutureExt}; use futures::{select_biased, future::FutureExt};
use libasync::{smoltcp::{Sockets, TcpStream}, task}; use libasync::{smoltcp::{Sockets, TcpStream}, task};
use libconfig::{Config, net_settings};
use crate::config;
use crate::net_settings;
use crate::proto_async::*; use crate::proto_async::*;
use crate::kernel; use crate::kernel;
use crate::rpc; use crate::rpc;
@ -315,7 +314,7 @@ async fn handle_connection(stream: &TcpStream, control: Rc<RefCell<kernel::Contr
} }
} }
pub fn main(timer: GlobalTimer, cfg: &config::Config) { pub fn main(timer: GlobalTimer, cfg: &Config) {
let net_addresses = net_settings::get_adresses(cfg); let net_addresses = net_settings::get_adresses(cfg);
info!("network addresses: {}", net_addresses); info!("network addresses: {}", net_addresses);

View File

@ -1,171 +0,0 @@
use crate::sd_reader;
use core_io::{Error, Read, Seek, SeekFrom};
use libboard_zynq::{devc, sdio};
use log::{info, debug};
#[derive(Debug)]
pub enum PlLoadingError {
BootImageNotFound,
InvalidBootImageHeader,
MissingBitstreamPartition,
EncryptedBitstream,
IoError(Error),
DevcError(devc::DevcError),
}
impl From<Error> for PlLoadingError {
fn from(error: Error) -> Self {
PlLoadingError::IoError(error)
}
}
impl From<devc::DevcError> for PlLoadingError {
fn from(error: devc::DevcError) -> Self {
PlLoadingError::DevcError(error)
}
}
impl core::fmt::Display for PlLoadingError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
use PlLoadingError::*;
match self {
BootImageNotFound => write!(
f,
"Boot image not found, make sure `boot.bin` exists and your SD card is plugged in."
),
InvalidBootImageHeader => write!(
f,
"Invalid boot image header. Check if the file is correct."
),
MissingBitstreamPartition => write!(
f,
"Bitstream partition not found. Check your compile configuration."
),
EncryptedBitstream => write!(f, "Encrypted bitstream is not supported."),
IoError(e) => write!(f, "Error while reading: {}", e),
DevcError(e) => write!(f, "PCAP interface error: {}", e),
}
}
}
#[repr(C)]
struct PartitionHeader {
pub encrypted_length: u32,
pub unencrypted_length: u32,
pub word_length: u32,
pub dest_load_addr: u32,
pub dest_exec_addr: u32,
pub data_offset: u32,
pub attribute_bits: u32,
pub section_count: u32,
pub checksum_offset: u32,
pub header_offset: u32,
pub cert_offset: u32,
pub reserved: [u32; 4],
pub checksum: u32,
}
/// Read a u32 word from the reader.
fn read_u32<Reader: Read>(reader: &mut Reader) -> Result<u32, PlLoadingError> {
let mut buffer: [u8; 4] = [0; 4];
reader.read_exact(&mut buffer)?;
let mut result: u32 = 0;
for i in 0..4 {
result |= (buffer[i] as u32) << (i * 8);
}
Ok(result)
}
/// Load PL partition header.
fn load_pl_header<File: Read + Seek>(
file: &mut File,
) -> Result<Option<PartitionHeader>, PlLoadingError> {
let mut buffer: [u8; 0x40] = [0; 0x40];
file.read_exact(&mut buffer)?;
let header = unsafe { core::mem::transmute::<_, PartitionHeader>(buffer) };
if header.attribute_bits & (2 << 4) != 0 {
Ok(Some(header))
} else {
Ok(None)
}
}
/// Locate the PL bitstream from the image, and return the size (in bytes) of the bitstream if successful.
/// This function would seek the file to the location of the bitstream.
fn locate_bitstream<File: Read + Seek>(file: &mut File) -> Result<usize, PlLoadingError> {
const BOOT_HEADER_SIGN: u32 = 0x584C4E58;
// read boot header signature
file.seek(SeekFrom::Start(0x24))?;
if read_u32(file)? != BOOT_HEADER_SIGN {
return Err(PlLoadingError::InvalidBootImageHeader);
}
// read partition header offset
file.seek(SeekFrom::Start(0x9C))?;
let ptr = read_u32(file)?;
debug!("Partition header pointer = {:0X}", ptr);
file.seek(SeekFrom::Start(ptr as u64))?;
let mut header_opt = None;
// at most 3 partition headers
for _ in 0..3 {
let result = load_pl_header(file)?;
if let Some(h) = result {
header_opt = Some(h);
break;
}
}
let header = match header_opt {
None => return Err(PlLoadingError::MissingBitstreamPartition),
Some(h) => h,
};
let encrypted_length = header.encrypted_length;
let unencrypted_length = header.unencrypted_length;
debug!("Unencrypted length = {:0X}", unencrypted_length);
if encrypted_length != unencrypted_length {
return Err(PlLoadingError::EncryptedBitstream);
}
let start_addr = header.data_offset;
debug!("Partition start address: {:0X}", start_addr);
file.seek(SeekFrom::Start(start_addr as u64 * 4))?;
Ok(unencrypted_length as usize * 4)
}
/// Load bitstream from bootgen file.
/// This function parses the file, locate the bitstream and load it through the PCAP driver.
/// It requires a large buffer, please enable the DDR RAM before using it.
pub fn load_bitstream<File: Read + Seek>(
file: &mut File,
) -> Result<(), PlLoadingError> {
let size = locate_bitstream(file)?;
let mut buffer: alloc::vec::Vec<u8> = alloc::vec::Vec::with_capacity(size);
unsafe {
buffer.set_len(buffer.capacity());
}
file.read_exact(&mut buffer)?;
let mut devcfg = devc::DevC::new();
devcfg.enable();
devcfg.program(&buffer)?;
Ok(())
}
pub fn load_bitstream_from_sd() -> Result<(), PlLoadingError> {
let sdio0 = sdio::Sdio::sdio0(true);
if sdio0.is_card_inserted() {
info!("Card inserted. Mounting file system.");
let sd = sdio::sd_card::SdCard::from_sdio(sdio0).unwrap();
let reader = sd_reader::SdReader::new(sd);
let fs = reader.mount_fatfs(sd_reader::PartitionEntry::Entry1)?;
let root_dir = fs.root_dir();
let mut file = root_dir.open_file("/BOOT.BIN").map_err(|_| PlLoadingError::BootImageNotFound)?;
info!("Found boot image!");
load_bitstream(&mut file)
} else {
info!("SD card not inserted. Bitstream cannot be loaded.");
Err(PlLoadingError::BootImageNotFound)
}
}

View File

@ -14,17 +14,14 @@ extern crate alloc;
use core::{cmp, str}; use core::{cmp, str};
use log::{info, warn, error}; use log::{info, warn, error};
use libboard_zynq::{timer::GlobalTimer, devc, slcr, mpcore, gic}; use libboard_zynq::{timer::GlobalTimer, mpcore, gic};
use libasync::{task, block_async}; use libasync::{task, block_async};
use libsupport_zynq::ram; use libsupport_zynq::ram;
use libregister::RegisterW;
use nb; use nb;
use void::Void; use void::Void;
use embedded_hal::blocking::delay::DelayMs; use embedded_hal::blocking::delay::DelayMs;
use libconfig::Config;
mod sd_reader;
mod config;
mod net_settings;
mod proto_core_io; mod proto_core_io;
mod proto_async; mod proto_async;
mod comms; mod comms;
@ -39,7 +36,6 @@ mod rtio;
mod rtio; mod rtio;
mod kernel; mod kernel;
mod moninj; mod moninj;
mod load_pl;
mod eh_artiq; mod eh_artiq;
mod panic; mod panic;
mod logger; mod logger;
@ -47,45 +43,6 @@ mod mgmt;
mod analyzer; mod analyzer;
mod irq; mod irq;
fn init_gateware() {
// Set up PS->PL clocks
Review

This must stay

This must stay
slcr::RegisterBlock::unlocked(|slcr| {
// As we are touching the mux, the clock may glitch, so reset the PL.
slcr.fpga_rst_ctrl.write(
slcr::FpgaRstCtrl::zeroed()
.fpga0_out_rst(true)
.fpga1_out_rst(true)
.fpga2_out_rst(true)
.fpga3_out_rst(true)
);
slcr.fpga0_clk_ctrl.write(
slcr::Fpga0ClkCtrl::zeroed()
.src_sel(slcr::PllSource::IoPll)
.divisor0(8)
.divisor1(1)
);
slcr.fpga_rst_ctrl.write(
slcr::FpgaRstCtrl::zeroed()
);
});
if devc::DevC::new().is_done() {
info!("gateware already loaded");
// Do not load again: assume that the gateware already present is
// what we want (e.g. gateware configured via JTAG before PS
// startup, or by FSBL).
// Make sure that the PL/PS interface is enabled (e.g. OpenOCD does not enable it).
slcr::RegisterBlock::unlocked(|slcr| {
slcr.init_postload_fpga();
});
} else {
// Load from SD card
match load_pl::load_bitstream_from_sd() {
Ok(_) => info!("Bitstream loaded successfully!"),
Err(e) => info!("Failure loading bitstream: {}", e),
}
}
}
fn identifier_read(buf: &mut [u8]) -> &str { fn identifier_read(buf: &mut [u8]) -> &str {
unsafe { unsafe {
pl::csr::identifier::address_write(0); pl::csr::identifier::address_write(0);
@ -99,7 +56,7 @@ fn identifier_read(buf: &mut [u8]) -> &str {
} }
} }
fn init_rtio(timer: &mut GlobalTimer, cfg: &config::Config) { fn init_rtio(timer: &mut GlobalTimer, cfg: &Config) {
let clock_sel = let clock_sel =
if let Ok(rtioclk) = cfg.read_str("rtioclk") { if let Ok(rtioclk) = cfg.read_str("rtioclk") {
match rtioclk.as_ref() { match rtioclk.as_ref() {
@ -185,7 +142,7 @@ pub fn main_core0() {
let buffer_logger = unsafe { let buffer_logger = unsafe {
logger::BufferLogger::new(&mut LOG_BUFFER[..]) logger::BufferLogger::new(&mut LOG_BUFFER[..])
}; };
buffer_logger.set_uart_log_level(log::LevelFilter::Debug); buffer_logger.set_uart_log_level(log::LevelFilter::Info);
buffer_logger.register(); buffer_logger.register();
log::set_max_level(log::LevelFilter::Debug); log::set_max_level(log::LevelFilter::Debug);
@ -194,14 +151,12 @@ pub fn main_core0() {
ram::init_alloc_core0(); ram::init_alloc_core0();
gic::InterruptController::gic(mpcore::RegisterBlock::mpcore()).enable_interrupts(); gic::InterruptController::gic(mpcore::RegisterBlock::mpcore()).enable_interrupts();
init_gateware();
info!("detected gateware: {}", identifier_read(&mut [0; 64])); info!("detected gateware: {}", identifier_read(&mut [0; 64]));
let cfg = match Config::new() {
let cfg = match config::Config::new() {
Ok(cfg) => cfg, Ok(cfg) => cfg,
Err(err) => { Err(err) => {
warn!("config initialization failed: {}", err); warn!("config initialization failed: {}", err);
config::Config::new_dummy() Config::new_dummy()
} }
}; };

View File

@ -11,10 +11,12 @@ default = ["target_zc706"]
[dependencies] [dependencies]
log = "0.4" log = "0.4"
cstr_core = { version = "0.2", default-features = false } byteorder = { version = "1.3", default-features = false }
libboard_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } core_io = { version = "0.1", features = ["collections"] }
libsupport_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git", default-features = false, features = ["dummy_irq_handler"] }
libcortex_a9 = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" } libconfig = { path = "../libconfig" }
libboard_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
libsupport_zynq = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
libcortex_a9 = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
libregister = { git = "https://git.m-labs.hk/M-Labs/zynq-rs.git" }
[build-dependencies]
cc = { version = "1.0.1" }

View File

@ -1,14 +1,13 @@
use std::env; use std::env;
use std::fs::File; use std::fs::File;
use std::io::Write; use std::io::Write;
use std::path::{Path, PathBuf}; use std::path::PathBuf;
fn main() { fn main() {
println!("cargo:rerun-if-changed=build.rs"); println!("cargo:rerun-if-changed=build.rs");
let out = env::var("OUT_DIR").unwrap(); let out = env::var("OUT_DIR").unwrap();
let out_dir = &PathBuf::from(&out); let out_dir = &PathBuf::from(&out);
compile_unlzma();
// Put the linker script somewhere the linker can find it // Put the linker script somewhere the linker can find it
File::create(out_dir.join("link.x")) File::create(out_dir.join("link.x"))
.unwrap() .unwrap()
@ -21,29 +20,3 @@ fn main() {
println!("cargo:rerun-if-changed=link.x"); println!("cargo:rerun-if-changed=link.x");
} }
pub fn compile_unlzma() {
let cfg = &mut cc::Build::new();
cfg.compiler("clang");
cfg.no_default_flags(true);
cfg.warnings(false);
cfg.flag("-nostdlib");
cfg.flag("-ffreestanding");
cfg.flag("-fPIC");
cfg.flag("-fno-stack-protector");
cfg.flag("--target=armv7-none-eabihf");
cfg.flag("-Oz");
cfg.flag("-flto=full");
let sources = vec![
"unlzma.c",
];
let root = Path::new("./");
for src in sources {
println!("cargo:rerun-if-changed={}", src);
cfg.file(root.join("src").join(src));
}
cfg.compile("unlzma");
}

View File

@ -4,6 +4,7 @@ MEMORY
{ {
/* 256 kB On-Chip Memory */ /* 256 kB On-Chip Memory */
OCM : ORIGIN = 0, LENGTH = 0x30000 OCM : ORIGIN = 0, LENGTH = 0x30000
SDRAM : ORIGIN = 0x00100000, LENGTH = 0x1FF00000
OCM3 : ORIGIN = 0xFFFF0000, LENGTH = 0x10000 OCM3 : ORIGIN = 0xFFFF0000, LENGTH = 0x10000
} }
@ -26,6 +27,16 @@ SECTIONS
*(.data .data.*); *(.data .data.*);
} > OCM } > OCM
.heap (NOLOAD) : ALIGN(8)
{
__runtime_start = .;
. += 0x8000000;
__runtime_end = .;
__heap0_start = .;
. += 0x8000000;
__heap0_end = .;
} > SDRAM
.bss (NOLOAD) : ALIGN(4) .bss (NOLOAD) : ALIGN(4)
{ {
__bss_start = .; __bss_start = .;
@ -34,12 +45,6 @@ SECTIONS
__bss_end = .; __bss_end = .;
} > OCM3 } > OCM3
.heap (NOLOAD) : ALIGN(8)
{
__heap0_start = .;
__heap0_end = .;
} > OCM3
.stack1 (NOLOAD) : ALIGN(8) .stack1 (NOLOAD) : ALIGN(8)
{ {
__stack1_end = .; __stack1_end = .;

View File

@ -1,47 +1,66 @@
#![no_std] #![no_std]
#![no_main] #![no_main]
#![feature(panic_info_message)]
extern crate alloc;
extern crate log; extern crate log;
use core::mem; mod netboot;
use log::{debug, info, error};
use cstr_core::CStr;
use libcortex_a9::{ use alloc::rc::Rc;
enable_fpu, use core::mem;
l2c::enable_l2_cache, use core_io::{Read, Seek};
cache::{dcciall, iciallu, bpiall},
asm::{dsb, isb},
};
use libboard_zynq::{ use libboard_zynq::{
self as zynq, println, self as zynq,
clocks::Clocks, clocks::source::{ClockSource, ArmPll, IoPll}, clocks::source::{ArmPll, ClockSource, IoPll},
stdio, clocks::Clocks,
logger, logger, println, sdio, slcr,
timer::GlobalTimer, timer::GlobalTimer,
}; };
use libsupport_zynq as _; use libconfig::{bootgen, sd_reader, Config};
use libcortex_a9::{
asm::{dsb, isb},
cache::{bpiall, dcciall, iciallu},
enable_fpu,
l2c::enable_l2_cache,
};
use libregister::RegisterR;
use libsupport_zynq::ram;
use log::info;
extern "C" { extern "C" {
fn unlzma_simple(buf: *const u8, in_len: i32, static mut __runtime_start: usize;
output: *mut u8, static mut __runtime_end: usize;
error: extern fn(*const u8)) -> i32;
} }
extern fn lzma_error(message: *const u8) { fn boot_sd<File: Read + Seek>(
let msg = unsafe {CStr::from_ptr(message)}.to_str(); file: &mut Option<File>,
if let Ok(msg) = msg { runtime_start: *mut u8,
println!("LZMA error: {}", msg); runtime_max: usize,
) -> Result<(), ()> {
if file.is_none() {
log::error!("No bootgen file");
return Err(());
} }
} let mut file = file.as_mut().unwrap();
info!("Loading gateware");
bootgen::load_bitstream(&mut file).map_err(|e| log::error!("Cannot load gateware: {:?}", e))?;
#[panic_handler] info!("Loading runtime");
fn panic(_: &core::panic::PanicInfo) -> ! { let runtime =
stdio::drop_uart(); bootgen::get_runtime(&mut file).map_err(|e| log::error!("Cannot load runtime: {:?}", e))?;
println!("panicked!");
loop {} if runtime.len() > runtime_max {
log::error!(
"Runtime binary too large, max {} but got {}",
runtime_max,
runtime.len()
);
}
unsafe {
let target = core::slice::from_raw_parts_mut(runtime_start, runtime.len());
Outdated
Review

Maybe define a section in the linker script for the executable. Then both the start address and the maximum length can be obtained from there.

Maybe define a section in the linker script for the executable. Then both the start address and the maximum length can be obtained from there.
target.copy_from_slice(&runtime);
}
Ok(())
} }
#[no_mangle] #[no_mangle]
@ -50,7 +69,8 @@ pub fn main_core0() {
enable_fpu(); enable_fpu();
logger::init().unwrap(); logger::init().unwrap();
log::set_max_level(log::LevelFilter::Debug); log::set_max_level(log::LevelFilter::Debug);
println!(r#" println!(
r#"
__________ __ __________ __
Outdated
Review

Go to netboot there as well

Go to netboot there as well
/ ___/__ / / / / ___/__ / / /
Outdated
Review

I suggest not crashing on those errors, but going into netboot mode.

I suggest not crashing on those errors, but going into netboot mode.
@ -59,12 +79,11 @@ pub fn main_core0() {
/____/ /____/_____/ /____/ /____/_____/
Outdated
Review

remove exclamation mark

remove exclamation mark
(C) 2020 M-Labs (C) 2020 M-Labs
"#); "#
);
Outdated
Review

Why not use the same format as FSBL? We're already doing that for the bitstream. And FSBL compatibility is nice to have in practice, as #94 shows.

Why not use the same format as FSBL? We're already doing that for the bitstream. And FSBL compatibility is nice to have in practice, as https://git.m-labs.hk/M-Labs/artiq-zynq/issues/94 shows.
info!("Simple Zynq Loader starting..."); info!("Simple Zynq Loader starting...");
enable_l2_cache(); enable_l2_cache();
Outdated
Review

nitpick: remove the exclamation mark

nitpick: remove the exclamation mark
debug!("FPU enabled on Core0");
const CPU_FREQ: u32 = 800_000_000; const CPU_FREQ: u32 = 800_000_000;
ArmPll::setup(2 * CPU_FREQ); ArmPll::setup(2 * CPU_FREQ);
@ -72,15 +91,61 @@ pub fn main_core0() {
IoPll::setup(1_000_000_000); IoPll::setup(1_000_000_000);
libboard_zynq::stdio::drop_uart(); // reinitialize UART after clocking change libboard_zynq::stdio::drop_uart(); // reinitialize UART after clocking change
let mut ddr = zynq::ddr::DdrRam::ddrram(); let mut ddr = zynq::ddr::DdrRam::ddrram();
ram::init_alloc_core0();
let payload = include_bytes!("../../../build/szl-payload.bin.lzma"); let sdio0 = sdio::Sdio::sdio0(true);
info!("decompressing payload"); let fs = if sdio0.is_card_inserted() {
let result = unsafe { info!("Card inserted. Mounting file system.");
unlzma_simple(payload.as_ptr(), payload.len() as i32, ddr.ptr(), lzma_error) let sd = sdio::sd_card::SdCard::from_sdio(sdio0).unwrap();
}; let reader = sd_reader::SdReader::new(sd);
if result < 0 { reader
error!("decompression failed"); .mount_fatfs(sd_reader::PartitionEntry::Entry1)
.map(|v| Rc::new(v))
.ok()
} else { } else {
info!("No SD card inserted.");
None
};
let fs_ref = fs.as_ref();
let root_dir = fs_ref.map(|fs| fs.root_dir());
let mut bootgen_file = root_dir.and_then(|root_dir| root_dir.open_file("/BOOT.BIN").ok());
let config = Config::from_fs(fs.clone());
unsafe {
let max_len =
&__runtime_end as *const usize as usize - &__runtime_start as *const usize as usize;
match slcr::RegisterBlock::unlocked(|slcr| slcr.boot_mode.read().boot_mode_pins()) {
slcr::BootModePins::Jtag => netboot::netboot(
&mut bootgen_file,
config,
&mut __runtime_start as *mut usize as *mut u8,
max_len,
),
slcr::BootModePins::SdCard => {
if boot_sd(
&mut bootgen_file,
&mut __runtime_start as *mut usize as *mut u8,
max_len,
)
.is_err()
{
log::error!("Error booting from SD card");
log::info!("Fall back on netboot");
netboot::netboot(
&mut bootgen_file,
config,
&mut __runtime_start as *mut usize as *mut u8,
max_len,
)
}
}
v => {
panic!("Boot mode {:?} not supported", v);
}
};
}
info!("Preparing for runtime execution");
// Flush data cache entries for all of L1 cache, including // Flush data cache entries for all of L1 cache, including
// Memory/Instruction Synchronization Barriers // Memory/Instruction Synchronization Barriers
dcciall(); dcciall();
@ -94,7 +159,6 @@ pub fn main_core0() {
unsafe { unsafe {
(mem::transmute::<*mut u8, fn()>(ddr.ptr::<u8>()))(); (mem::transmute::<*mut u8, fn()>(ddr.ptr::<u8>()))();
} }
}
loop {} loop {}
} }

399
src/szl/src/netboot.rs Normal file
View File

@ -0,0 +1,399 @@
use alloc::vec;
use alloc::vec::Vec;
use byteorder::{ByteOrder, NetworkEndian};
use core_io::{Read, Seek};
use libboard_zynq::{
devc,
eth::Eth,
smoltcp::{
self,
iface::{EthernetInterfaceBuilder, NeighborCache},
time::Instant,
wire::IpCidr,
},
timer::GlobalTimer,
};
use libconfig::{bootgen, net_settings, Config};
enum NetConnState {
WaitCommand,
FirmwareLength(usize, u8),
FirmwareDownload(usize, usize),
FirmwareWaitO,
FirmwareWaitK,
GatewareLength(usize, u8),
GatewareDownload(usize, usize),
GatewareWaitO,
GatewareWaitK,
}
struct NetConn {
state: NetConnState,
firmware_downloaded: bool,
gateware_downloaded: bool,
}
impl NetConn {
pub fn new() -> NetConn {
NetConn {
state: NetConnState::WaitCommand,
firmware_downloaded: false,
gateware_downloaded: false,
}
}
pub fn reset(&mut self) {
self.state = NetConnState::WaitCommand;
self.firmware_downloaded = false;
self.gateware_downloaded = false;
}
fn input_partial<File: Read + Seek>(
&mut self,
bootgen_file: &mut Option<File>,
runtime_start: *mut u8,
runtime_max_len: usize,
buf: &[u8],
storage: &mut Vec<u8>,
mut boot_callback: impl FnMut(),
) -> Result<usize, ()> {
match self.state {
NetConnState::WaitCommand => match buf[0] {
b'F' => {
log::info!("Received firmware load command");
self.state = NetConnState::FirmwareLength(0, 0);
Ok(1)
}
b'G' => {
log::info!("Received gateware load command");
self.state = NetConnState::GatewareLength(0, 0);
storage.clear();
Ok(1)
}
b'B' => {
if !self.gateware_downloaded {
log::info!("Gateware not loaded via netboot");
if bootgen_file.is_none() {
log::error!("No bootgen file to load gateware");
return Err(());
}
log::info!("Attempting to load from SD card");
if let Err(e) = bootgen::load_bitstream(bootgen_file.as_mut().unwrap()) {
log::error!("Gateware load failed: {:?}", e);
return Err(());
}
}
if self.firmware_downloaded {
log::info!("Received boot command");
boot_callback();
self.state = NetConnState::WaitCommand;
Ok(1)
} else {
log::error!("Received boot command, but no firmware downloaded");
Err(())
}
}
_ => {
log::error!("Received unknown netboot command: 0x{:02x}", buf[0]);
Err(())
}
},
NetConnState::FirmwareLength(firmware_length, recv_bytes) => {
let firmware_length = (firmware_length << 8) | (buf[0] as usize);
let recv_bytes = recv_bytes + 1;
if recv_bytes == 4 {
if firmware_length > runtime_max_len {
log::error!(
"Runtime too large, maximum {} but requested {}",
runtime_max_len,
firmware_length
);
return Err(());
}
self.state = NetConnState::FirmwareDownload(firmware_length, 0);
storage.clear();
storage.reserve(firmware_length);
} else {
self.state = NetConnState::FirmwareLength(firmware_length, recv_bytes);
}
Ok(1)
}
NetConnState::FirmwareDownload(firmware_length, recv_bytes) => {
let max_length = firmware_length - recv_bytes;
let buf = if buf.len() > max_length {
&buf[..max_length]
} else {
&buf[..]
};
let length = buf.len();
storage.extend_from_slice(buf);
let recv_bytes = recv_bytes + length;
if recv_bytes == firmware_length {
self.state = NetConnState::FirmwareWaitO;
Ok(length)
} else {
self.state = NetConnState::FirmwareDownload(firmware_length, recv_bytes);
Ok(length)
}
}
NetConnState::FirmwareWaitO => {
if buf[0] == b'O' {
self.state = NetConnState::FirmwareWaitK;
Ok(1)
} else {
log::error!("End-of-firmware confirmation failed");
Err(())
}
}
NetConnState::FirmwareWaitK => {
if buf[0] == b'K' {
log::info!("Firmware successfully downloaded");
self.state = NetConnState::WaitCommand;
self.firmware_downloaded = true;
{
let dest = unsafe {
core::slice::from_raw_parts_mut(runtime_start, storage.len())
};
dest.copy_from_slice(storage);
}
Ok(1)
} else {
log::error!("End-of-firmware confirmation failed");
Err(())
}
}
NetConnState::GatewareLength(gateware_length, recv_bytes) => {
let gateware_length = (gateware_length << 8) | (buf[0] as usize);
let recv_bytes = recv_bytes + 1;
if recv_bytes == 4 {
self.state = NetConnState::GatewareDownload(gateware_length, 0);
storage.clear();
storage.reserve_exact(gateware_length);
} else {
self.state = NetConnState::GatewareLength(gateware_length, recv_bytes);
}
Ok(1)
}
NetConnState::GatewareDownload(gateware_length, recv_bytes) => {
let max_length = gateware_length - recv_bytes;
let buf = if buf.len() > max_length {
&buf[..max_length]
} else {
&buf[..]
};
let length = buf.len();
storage.extend_from_slice(buf);
let recv_bytes = recv_bytes + length;
if recv_bytes == gateware_length {
self.state = NetConnState::GatewareWaitO;
Ok(length)
} else {
self.state = NetConnState::GatewareDownload(gateware_length, recv_bytes);
Ok(length)
}
}
NetConnState::GatewareWaitO => {
if buf[0] == b'O' {
self.state = NetConnState::GatewareWaitK;
Ok(1)
} else {
log::error!("End-of-gateware confirmation failed");
Err(())
}
}
NetConnState::GatewareWaitK => {
if buf[0] == b'K' {
log::info!("Preprocessing bitstream...");
// find sync word 0xFFFFFFFF AA995566
let sync_word: [u8; 8] = [0xFF, 0xFF, 0xFF, 0xFF, 0xAA, 0x99, 0x55, 0x66];
let mut i = 0;
let mut state = 0;
while i < storage.len() {
if storage[i] == sync_word[state] {
state += 1;
if state == sync_word.len() {
break;
}
} else {
// backtrack
// not very efficient but we only have 8 elements
'outer: while state > 0 {
state -= 1;
for j in 0..state {
if storage[i - j] != sync_word[state - j] {
continue 'outer;
}
}
break;
}
}
i += 1;
}
if state != sync_word.len() {
log::error!("Sync word not found in bitstream (corrupted?)");
return Err(());
}
// we need the sync word
// i was pointing to the last element in the sync sequence
i -= sync_word.len() - 1;
// // append no-op
// storage.extend_from_slice(&[0x20, 0, 0, 0]);
let bitstream = &mut storage[i..];
{
// swap endian
let swap = unsafe {
core::slice::from_raw_parts_mut(
bitstream.as_mut_ptr() as usize as *mut u32,
bitstream.len() / 4,
)
};
NetworkEndian::from_slice_u32(swap);
}
unsafe {
// align to 64 bytes
let ptr = alloc::alloc::alloc(
alloc::alloc::Layout::from_size_align(bitstream.len(), 64).unwrap(),
);
let buffer = core::slice::from_raw_parts_mut(ptr, bitstream.len());
buffer.copy_from_slice(bitstream);
let mut devcfg = devc::DevC::new();
devcfg.enable();
let result = devcfg.program(&buffer);
core::ptr::drop_in_place(ptr);
if let Err(e) = result {
log::error!("Error during FPGA startup: {}", e);
return Err(());
}
}
log::info!("Gateware successfully downloaded");
self.state = NetConnState::WaitCommand;
self.gateware_downloaded = true;
Ok(1)
} else {
log::info!("End-of-gateware confirmation failed");
Err(())
}
}
}
}
fn input<File: Read + Seek>(
&mut self,
bootgen_file: &mut Option<File>,
runtime_start: *mut u8,
runtime_max_len: usize,
buf: &[u8],
storage: &mut Vec<u8>,
mut boot_callback: impl FnMut(),
) -> Result<(), ()> {
let mut remaining = &buf[..];
while !remaining.is_empty() {
let read_cnt = self.input_partial(
bootgen_file,
runtime_start,
runtime_max_len,
remaining,
storage,
&mut boot_callback,
)?;
remaining = &remaining[read_cnt..];
}
Ok(())
}
}
pub fn netboot<File: Read + Seek>(
bootgen_file: &mut Option<File>,
cfg: Config,
runtime_start: *mut u8,
runtime_max_len: usize,
) {
log::info!("Preparing network for netboot");
let net_addresses = net_settings::get_adresses(&cfg);
log::info!("Network addresses: {}", net_addresses);
let eth = Eth::eth0(net_addresses.hardware_addr.0.clone());
let eth = eth.start_rx(8);
let mut eth = eth.start_tx(8);
let mut neighbor_map = [None; 2];
let neighbor_cache = NeighborCache::new(&mut neighbor_map[..]);
let mut ip_addrs = [IpCidr::new(net_addresses.ipv4_addr, 0)];
let mut interface = EthernetInterfaceBuilder::new(&mut eth)
.ethernet_addr(net_addresses.hardware_addr)
.ip_addrs(&mut ip_addrs[..])
.neighbor_cache(neighbor_cache)
.finalize();
let mut rx_storage = vec![0; 4096];
let mut tx_storage = vec![0; 128];
let mut socket_set_entries: [_; 1] = Default::default();
let mut sockets = smoltcp::socket::SocketSet::new(&mut socket_set_entries[..]);
let tcp_rx_buffer = smoltcp::socket::TcpSocketBuffer::new(&mut rx_storage[..]);
let tcp_tx_buffer = smoltcp::socket::TcpSocketBuffer::new(&mut tx_storage[..]);
let tcp_socket = smoltcp::socket::TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
let tcp_handle = sockets.add(tcp_socket);
let mut net_conn = NetConn::new();
let mut storage = Vec::new();
let mut boot_flag = false;
let timer = unsafe { GlobalTimer::get() };
log::info!("Waiting for connections...");
loop {
let timestamp = Instant::from_millis(timer.get_time().0 as i64);
{
let socket = &mut *sockets.get::<smoltcp::socket::TcpSocket>(tcp_handle);
if boot_flag {
return;
}
if !socket.is_open() {
socket.listen(4269).unwrap() // 0x10ad
}
if socket.may_recv() {
if socket
.recv(|data| {
(
data.len(),
net_conn
.input(
bootgen_file,
runtime_start,
runtime_max_len,
data,
&mut storage,
|| {
boot_flag = true;
},
)
.is_err(),
)
})
.unwrap()
{
net_conn.reset();
socket.close();
}
} else if socket.may_send() {
net_conn.reset();
socket.close();
}
}
match interface.poll(&mut sockets, timestamp) {
Ok(_) => (),
Err(smoltcp::Error::Unrecognized) => (),
Err(err) => log::error!("Network error: {}", err),
}
}
}

View File

@ -1,670 +0,0 @@
/*
*Taken from: Lzma decompressor for Linux kernel. Shamelessly snarfed
*from busybox 1.1.1
*
*Linux kernel adaptation
*Copyright (C) 2006 Alain < alain@knaff.lu >
*
*Based on small lzma deflate implementation/Small range coder
*implementation for lzma.
*Copyright (C) 2006 Aurelien Jacobs < aurel@gnuage.org >
*
*Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
*Copyright (C) 1999-2005 Igor Pavlov
*
*Copyrights of the parts, see headers below.
*
*
*This program is free software; you can redistribute it and/or
*modify it under the terms of the GNU Lesser General Public
*License as published by the Free Software Foundation; either
*version 2.1 of the License, or (at your option) any later version.
*
*This program is distributed in the hope that it will be useful,
*but WITHOUT ANY WARRANTY; without even the implied warranty of
*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
*Lesser General Public License for more details.
*
*You should have received a copy of the GNU Lesser General Public
*License along with this library; if not, write to the Free Software
*Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define NULL ((void *)0)
#define alloca(size) __builtin_alloca(size)
#define malloc alloca
static inline void free(void *p) {}
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
static long long read_int(unsigned char *ptr, int size)
{
int i;
long long ret = 0;
for (i = 0; i < size; i++)
ret = (ret << 8) | ptr[size-i-1];
return ret;
}
#define ENDIAN_CONVERT(x) \
x = (typeof(x))read_int((unsigned char *)&x, sizeof(x))
/* Small range coder implementation for lzma.
*Copyright (C) 2006 Aurelien Jacobs < aurel@gnuage.org >
*
*Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
*Copyright (c) 1999-2005 Igor Pavlov
*/
#define LZMA_IOBUF_SIZE 0x10000
struct rc {
int (*fill)(void*, unsigned int);
unsigned char *ptr;
unsigned char *buffer;
unsigned char *buffer_end;
int buffer_size;
unsigned int code;
unsigned int range;
unsigned int bound;
void (*error)(char *);
};
#define RC_TOP_BITS 24
#define RC_MOVE_BITS 5
#define RC_MODEL_TOTAL_BITS 11
static int nofill(void *buffer, unsigned int len)
{
return -1;
}
/* Called twice: once at startup and once in rc_normalize() */
static void rc_read(struct rc *rc)
{
rc->buffer_size = rc->fill((char *)rc->buffer, LZMA_IOBUF_SIZE);
if (rc->buffer_size <= 0)
rc->error("unexpected EOF");
rc->ptr = rc->buffer;
rc->buffer_end = rc->buffer + rc->buffer_size;
}
/* Called once */
static inline void rc_init(struct rc *rc,
int (*fill)(void*, unsigned int),
unsigned char *buffer, int buffer_size)
{
if (fill)
rc->fill = fill;
else
rc->fill = nofill;
rc->buffer = buffer;
rc->buffer_size = buffer_size;
rc->buffer_end = rc->buffer + rc->buffer_size;
rc->ptr = rc->buffer;
rc->code = 0;
rc->range = 0xFFFFFFFF;
}
static inline void rc_init_code(struct rc *rc)
{
int i;
for (i = 0; i < 5; i++) {
if (rc->ptr >= rc->buffer_end)
rc_read(rc);
rc->code = (rc->code << 8) | *rc->ptr++;
}
}
/* Called twice, but one callsite is in inline'd rc_is_bit_0_helper() */
static void rc_do_normalize(struct rc *rc)
{
if (rc->ptr >= rc->buffer_end)
rc_read(rc);
rc->range <<= 8;
rc->code = (rc->code << 8) | *rc->ptr++;
}
static inline void rc_normalize(struct rc *rc)
{
if (rc->range < (1 << RC_TOP_BITS))
rc_do_normalize(rc);
}
/* Called 9 times */
/* Why rc_is_bit_0_helper exists?
*Because we want to always expose (rc->code < rc->bound) to optimizer
*/
static inline unsigned int rc_is_bit_0_helper(struct rc *rc, unsigned short int *p)
{
rc_normalize(rc);
rc->bound = *p * (rc->range >> RC_MODEL_TOTAL_BITS);
return rc->bound;
}
static inline int rc_is_bit_0(struct rc *rc, unsigned short int *p)
{
unsigned int t = rc_is_bit_0_helper(rc, p);
return rc->code < t;
}
/* Called ~10 times, but very small, thus inlined */
static inline void rc_update_bit_0(struct rc *rc, unsigned short int *p)
{
rc->range = rc->bound;
*p += ((1 << RC_MODEL_TOTAL_BITS) - *p) >> RC_MOVE_BITS;
}
static inline void rc_update_bit_1(struct rc *rc, unsigned short int *p)
{
rc->range -= rc->bound;
rc->code -= rc->bound;
*p -= *p >> RC_MOVE_BITS;
}
/* Called 4 times in unlzma loop */
static int rc_get_bit(struct rc *rc, unsigned short int *p, int *symbol)
{
if (rc_is_bit_0(rc, p)) {
rc_update_bit_0(rc, p);
*symbol *= 2;
return 0;
} else {
rc_update_bit_1(rc, p);
*symbol = *symbol * 2 + 1;
return 1;
}
}
/* Called once */
static inline int rc_direct_bit(struct rc *rc)
{
rc_normalize(rc);
rc->range >>= 1;
if (rc->code >= rc->range) {
rc->code -= rc->range;
return 1;
}
return 0;
}
/* Called twice */
static inline void
rc_bit_tree_decode(struct rc *rc, unsigned short int *p, int num_levels, int *symbol)
{
int i = num_levels;
*symbol = 1;
while (i--)
rc_get_bit(rc, p + *symbol, symbol);
*symbol -= 1 << num_levels;
}
/*
* Small lzma deflate implementation.
* Copyright (C) 2006 Aurelien Jacobs < aurel@gnuage.org >
*
* Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
* Copyright (C) 1999-2005 Igor Pavlov
*/
struct lzma_header {
unsigned char pos;
unsigned int dict_size;
unsigned long long int dst_size;
} __attribute__ ((packed)) ;
#define LZMA_BASE_SIZE 1846
#define LZMA_LIT_SIZE 768
#define LZMA_NUM_POS_BITS_MAX 4
#define LZMA_LEN_NUM_LOW_BITS 3
#define LZMA_LEN_NUM_MID_BITS 3
#define LZMA_LEN_NUM_HIGH_BITS 8
#define LZMA_LEN_CHOICE 0
#define LZMA_LEN_CHOICE_2 (LZMA_LEN_CHOICE + 1)
#define LZMA_LEN_LOW (LZMA_LEN_CHOICE_2 + 1)
#define LZMA_LEN_MID (LZMA_LEN_LOW \
+ (1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_LOW_BITS)))
#define LZMA_LEN_HIGH (LZMA_LEN_MID \
+(1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_MID_BITS)))
#define LZMA_NUM_LEN_PROBS (LZMA_LEN_HIGH + (1 << LZMA_LEN_NUM_HIGH_BITS))
#define LZMA_NUM_STATES 12
#define LZMA_NUM_LIT_STATES 7
#define LZMA_START_POS_MODEL_INDEX 4
#define LZMA_END_POS_MODEL_INDEX 14
#define LZMA_NUM_FULL_DISTANCES (1 << (LZMA_END_POS_MODEL_INDEX >> 1))
#define LZMA_NUM_POS_SLOT_BITS 6
#define LZMA_NUM_LEN_TO_POS_STATES 4
#define LZMA_NUM_ALIGN_BITS 4
#define LZMA_MATCH_MIN_LEN 2
#define LZMA_IS_MATCH 0
#define LZMA_IS_REP (LZMA_IS_MATCH + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
#define LZMA_IS_REP_G0 (LZMA_IS_REP + LZMA_NUM_STATES)
#define LZMA_IS_REP_G1 (LZMA_IS_REP_G0 + LZMA_NUM_STATES)
#define LZMA_IS_REP_G2 (LZMA_IS_REP_G1 + LZMA_NUM_STATES)
#define LZMA_IS_REP_0_LONG (LZMA_IS_REP_G2 + LZMA_NUM_STATES)
#define LZMA_POS_SLOT (LZMA_IS_REP_0_LONG \
+ (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
#define LZMA_SPEC_POS (LZMA_POS_SLOT \
+(LZMA_NUM_LEN_TO_POS_STATES << LZMA_NUM_POS_SLOT_BITS))
#define LZMA_ALIGN (LZMA_SPEC_POS \
+ LZMA_NUM_FULL_DISTANCES - LZMA_END_POS_MODEL_INDEX)
#define LZMA_LEN_CODER (LZMA_ALIGN + (1 << LZMA_NUM_ALIGN_BITS))
#define LZMA_REP_LEN_CODER (LZMA_LEN_CODER + LZMA_NUM_LEN_PROBS)
#define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS)
struct writer {
unsigned char *buffer;
unsigned char previous_byte;
int buffer_pos;
int bufsize;
int global_pos;
int(*flush)(void*, unsigned int);
struct lzma_header *header;
};
struct cstate {
int state;
unsigned int rep0, rep1, rep2, rep3;
};
static inline int get_pos(struct writer *wr)
{
return
wr->global_pos + wr->buffer_pos;
}
static inline unsigned char peek_old_byte(struct writer *wr,
unsigned int offs)
{
if (!wr->flush) {
int pos;
while (offs > wr->header->dict_size)
offs -= wr->header->dict_size;
pos = wr->buffer_pos - offs;
return wr->buffer[pos];
} else {
unsigned int pos = wr->buffer_pos - offs;
while (pos >= wr->header->dict_size)
pos += wr->header->dict_size;
return wr->buffer[pos];
}
}
static inline int write_byte(struct writer *wr, unsigned char byte)
{
wr->buffer[wr->buffer_pos++] = wr->previous_byte = byte;
if (wr->flush && wr->buffer_pos == wr->header->dict_size) {
wr->buffer_pos = 0;
wr->global_pos += wr->header->dict_size;
if (wr->flush((char *)wr->buffer, wr->header->dict_size)
!= wr->header->dict_size)
return -1;
}
return 0;
}
static inline int copy_byte(struct writer *wr, unsigned int offs)
{
return write_byte(wr, peek_old_byte(wr, offs));
}
static inline int copy_bytes(struct writer *wr,
unsigned int rep0, int len)
{
do {
if (copy_byte(wr, rep0))
return -1;
len--;
} while (len != 0 && wr->buffer_pos < wr->header->dst_size);
return len;
}
static inline int process_bit0(struct writer *wr, struct rc *rc,
struct cstate *cst, unsigned short int *p,
int pos_state, unsigned short int *prob,
int lc, unsigned int literal_pos_mask) {
int mi = 1;
rc_update_bit_0(rc, prob);
prob = (p + LZMA_LITERAL +
(LZMA_LIT_SIZE
* (((get_pos(wr) & literal_pos_mask) << lc)
+ (wr->previous_byte >> (8 - lc))))
);
if (cst->state >= LZMA_NUM_LIT_STATES) {
int match_byte = peek_old_byte(wr, cst->rep0);
do {
int bit;
unsigned short int *prob_lit;
match_byte <<= 1;
bit = match_byte & 0x100;
prob_lit = prob + 0x100 + bit + mi;
if (rc_get_bit(rc, prob_lit, &mi)) {
if (!bit)
break;
} else {
if (bit)
break;
}
} while (mi < 0x100);
}
while (mi < 0x100) {
unsigned short int *prob_lit = prob + mi;
rc_get_bit(rc, prob_lit, &mi);
}
if (cst->state < 4)
cst->state = 0;
else if (cst->state < 10)
cst->state -= 3;
else
cst->state -= 6;
return write_byte(wr, mi);
}
static inline int process_bit1(struct writer *wr, struct rc *rc,
struct cstate *cst, unsigned short int *p,
int pos_state, unsigned short int *prob) {
int offset;
unsigned short int *prob_len;
int num_bits;
int len;
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP + cst->state;
if (rc_is_bit_0(rc, prob)) {
rc_update_bit_0(rc, prob);
cst->rep3 = cst->rep2;
cst->rep2 = cst->rep1;
cst->rep1 = cst->rep0;
cst->state = cst->state < LZMA_NUM_LIT_STATES ? 0 : 3;
prob = p + LZMA_LEN_CODER;
} else {
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G0 + cst->state;
if (rc_is_bit_0(rc, prob)) {
rc_update_bit_0(rc, prob);
prob = (p + LZMA_IS_REP_0_LONG
+ (cst->state <<
LZMA_NUM_POS_BITS_MAX) +
pos_state);
if (rc_is_bit_0(rc, prob)) {
rc_update_bit_0(rc, prob);
cst->state = cst->state < LZMA_NUM_LIT_STATES ?
9 : 11;
return copy_byte(wr, cst->rep0);
} else {
rc_update_bit_1(rc, prob);
}
} else {
unsigned int distance;
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G1 + cst->state;
if (rc_is_bit_0(rc, prob)) {
rc_update_bit_0(rc, prob);
distance = cst->rep1;
} else {
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G2 + cst->state;
if (rc_is_bit_0(rc, prob)) {
rc_update_bit_0(rc, prob);
distance = cst->rep2;
} else {
rc_update_bit_1(rc, prob);
distance = cst->rep3;
cst->rep3 = cst->rep2;
}
cst->rep2 = cst->rep1;
}
cst->rep1 = cst->rep0;
cst->rep0 = distance;
}
cst->state = cst->state < LZMA_NUM_LIT_STATES ? 8 : 11;
prob = p + LZMA_REP_LEN_CODER;
}
prob_len = prob + LZMA_LEN_CHOICE;
if (rc_is_bit_0(rc, prob_len)) {
rc_update_bit_0(rc, prob_len);
prob_len = (prob + LZMA_LEN_LOW
+ (pos_state <<
LZMA_LEN_NUM_LOW_BITS));
offset = 0;
num_bits = LZMA_LEN_NUM_LOW_BITS;
} else {
rc_update_bit_1(rc, prob_len);
prob_len = prob + LZMA_LEN_CHOICE_2;
if (rc_is_bit_0(rc, prob_len)) {
rc_update_bit_0(rc, prob_len);
prob_len = (prob + LZMA_LEN_MID
+ (pos_state <<
LZMA_LEN_NUM_MID_BITS));
offset = 1 << LZMA_LEN_NUM_LOW_BITS;
num_bits = LZMA_LEN_NUM_MID_BITS;
} else {
rc_update_bit_1(rc, prob_len);
prob_len = prob + LZMA_LEN_HIGH;
offset = ((1 << LZMA_LEN_NUM_LOW_BITS)
+ (1 << LZMA_LEN_NUM_MID_BITS));
num_bits = LZMA_LEN_NUM_HIGH_BITS;
}
}
rc_bit_tree_decode(rc, prob_len, num_bits, &len);
len += offset;
if (cst->state < 4) {
int pos_slot;
cst->state += LZMA_NUM_LIT_STATES;
prob =
p + LZMA_POS_SLOT +
((len <
LZMA_NUM_LEN_TO_POS_STATES ? len :
LZMA_NUM_LEN_TO_POS_STATES - 1)
<< LZMA_NUM_POS_SLOT_BITS);
rc_bit_tree_decode(rc, prob,
LZMA_NUM_POS_SLOT_BITS,
&pos_slot);
if (pos_slot >= LZMA_START_POS_MODEL_INDEX) {
int i, mi;
num_bits = (pos_slot >> 1) - 1;
cst->rep0 = 2 | (pos_slot & 1);
if (pos_slot < LZMA_END_POS_MODEL_INDEX) {
cst->rep0 <<= num_bits;
prob = p + LZMA_SPEC_POS +
cst->rep0 - pos_slot - 1;
} else {
num_bits -= LZMA_NUM_ALIGN_BITS;
while (num_bits--)
cst->rep0 = (cst->rep0 << 1) |
rc_direct_bit(rc);
prob = p + LZMA_ALIGN;
cst->rep0 <<= LZMA_NUM_ALIGN_BITS;
num_bits = LZMA_NUM_ALIGN_BITS;
}
i = 1;
mi = 1;
while (num_bits--) {
if (rc_get_bit(rc, prob + mi, &mi))
cst->rep0 |= i;
i <<= 1;
}
} else
cst->rep0 = pos_slot;
if (++(cst->rep0) == 0)
return 0;
if (cst->rep0 > wr->header->dict_size
|| cst->rep0 > get_pos(wr))
return -1;
}
len += LZMA_MATCH_MIN_LEN;
return copy_bytes(wr, cst->rep0, len);
}
int unlzma(unsigned char *buf, int in_len,
int(*fill)(void*, unsigned int),
int(*flush)(void*, unsigned int),
unsigned char *output,
int *posp,
void(*error)(char *x)
)
{
struct lzma_header header;
int lc, pb, lp;
unsigned int pos_state_mask;
unsigned int literal_pos_mask;
unsigned short int *p;
int num_probs;
struct rc rc;
int i, mi;
struct writer wr;
struct cstate cst;
unsigned char *inbuf;
int ret = -1;
rc.error = error;
if (buf)
inbuf = buf;
else
inbuf = malloc(LZMA_IOBUF_SIZE);
if (!inbuf) {
error("Could not allocate input bufer");
goto exit_0;
}
cst.state = 0;
cst.rep0 = cst.rep1 = cst.rep2 = cst.rep3 = 1;
wr.header = &header;
wr.flush = flush;
wr.global_pos = 0;
wr.previous_byte = 0;
wr.buffer_pos = 0;
rc_init(&rc, fill, inbuf, in_len);
for (i = 0; i < sizeof(header); i++) {
if (rc.ptr >= rc.buffer_end)
rc_read(&rc);
((unsigned char *)&header)[i] = *rc.ptr++;
}
if (header.pos >= (9 * 5 * 5)) {
error("bad header");
goto exit_1;
}
mi = 0;
lc = header.pos;
while (lc >= 9) {
mi++;
lc -= 9;
}
pb = 0;
lp = mi;
while (lp >= 5) {
pb++;
lp -= 5;
}
pos_state_mask = (1 << pb) - 1;
literal_pos_mask = (1 << lp) - 1;
ENDIAN_CONVERT(header.dict_size);
ENDIAN_CONVERT(header.dst_size);
if (header.dict_size == 0)
header.dict_size = 1;
if (output)
wr.buffer = output;
else {
wr.bufsize = MIN(header.dst_size, header.dict_size);
wr.buffer = malloc(wr.bufsize);
}
if (wr.buffer == NULL)
goto exit_1;
num_probs = LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp));
p = (unsigned short int *) malloc(num_probs * sizeof(*p));
if (p == 0)
goto exit_2;
num_probs = LZMA_LITERAL + (LZMA_LIT_SIZE << (lc + lp));
for (i = 0; i < num_probs; i++)
p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1;
rc_init_code(&rc);
while (get_pos(&wr) < header.dst_size) {
int pos_state = get_pos(&wr) & pos_state_mask;
unsigned short int *prob = p + LZMA_IS_MATCH +
(cst.state << LZMA_NUM_POS_BITS_MAX) + pos_state;
if (rc_is_bit_0(&rc, prob)) {
if (process_bit0(&wr, &rc, &cst, p, pos_state, prob,
lc, literal_pos_mask)) {
error("LZMA data is corrupt");
goto exit_3;
}
} else {
if (process_bit1(&wr, &rc, &cst, p, pos_state, prob)) {
error("LZMA data is corrupt");
goto exit_3;
}
if (cst.rep0 == 0)
break;
}
if (rc.buffer_size <= 0)
goto exit_3;
}
if (posp)
*posp = rc.ptr-rc.buffer;
if (!wr.flush || wr.flush(wr.buffer, wr.buffer_pos) == wr.buffer_pos)
ret = 0;
exit_3:
free(p);
exit_2:
if (!output)
free(wr.buffer);
exit_1:
if (!buf)
free(inbuf);
exit_0:
return ret;
}
int unlzma_simple(unsigned char *buf, int in_len,
unsigned char *output,
void(*error)(char *x))
{
return unlzma(buf, in_len, NULL, NULL, output, NULL, error);
}