init

.ci/ci

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+#!/usr/bin/env bash
+
+set -xe
+
+cd bitbox02-bt
+
+cargo check
+
+cargo clippy
+
+# There will be a warning about "unused patch". It does work as expected. See
+# https://github.com/rust-lang/cargo/issues/14003
+make build
+
+make build-release

.containerversion

@@ -0,0 +1 @@
+latest

.dockerignore

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+*
+
+!rust-toolchain.toml
+!SDK*.zip
+!da14531-sdk/patches/*

.github/workflows/ci.yml

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+name: CI
+on: [push, pull_request]
+
+env:
+  CARGO_TERM_COLOR: always
+  # We cannot deny warnings because setting this environment variable overrides
+  # the other custom rust flags that are defined in `.cargo/config.toml`.
+  # RUSTFLAGS: -Dwarnings
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - run: podman pull shiftcrypto/da14531
+
+      - run: >
+          podman run
+          --volume ${{github.workspace}}:/checkout
+          --workdir /checkout
+          --env CARGO_TERM_COLOR
+          shiftcrypto/da14531
+          .ci/ci

.gitignore

@@ -0,0 +1 @@
+SDK*.zip

.gitmodules

@@ -0,0 +1,12 @@
+[submodule "da14531-hal"]
+	path = da14531-hal
+	url = http://github.com/BitBoxSwiss/da14531-hal
+[submodule "da14531-sdk"]
+	path = da14531-sdk
+	url = http://github.com/BitBoxSwiss/da14531-sdk
+[submodule "da14531-sdk-macros"]
+	path = da14531-sdk-macros
+	url = http://github.com/BitBoxSwiss/da14531-sdk-macros
+[submodule "da14531"]
+	path = da14531
+	url = http://github.com/BitBoxSwiss/da14531

Dockerfile

@@ -0,0 +1,71 @@
+# Copyright 2024 Shift Crypto AG
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM ubuntu:22.04
+
+# arm-none-eabi-gdb depends on libncurses5, libncursesw5 and libtinfo5
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
+    curl \
+    make \
+    gcc \
+    xz-utils \
+    unzip \
+    patch \
+    gnupg2 \
+    libncurses5 \
+    libncursesw5 \
+    libtinfo5 \
+    && rm -rf /var/lib/apt/lists/*
+
+# for llvm-18, see https://apt.llvm.org/
+RUN echo "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main" >> /etc/apt/sources.list && \
+    echo "deb-src http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main" >> /etc/apt/sources.list && \
+    curl -L https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
+    clang-18 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install ARM GNU Toolchain
+ARG TARGETPLATFORM
+RUN if [ "${TARGETPLATFORM}" = "linux/arm64" ]; then \
+      GNU_TOOLCHAIN=https://developer.arm.com/-/media/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi.tar.xz \
+      GNU_TOOLCHAIN_HASH=c8824bffd057afce2259f7618254e840715f33523a3d4e4294f471208f976764; \
+    else \
+      GNU_TOOLCHAIN=https://developer.arm.com/-/media/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz \
+      GNU_TOOLCHAIN_HASH=95c011cee430e64dd6087c75c800f04b9c49832cc1000127a92a97f9c8d83af4; \
+    fi; \
+    curl -sSLo gcc.tar.xz ${GNU_TOOLCHAIN} && \
+    echo "$GNU_TOOLCHAIN_HASH gcc.tar.xz" | sha256sum -c && \
+    tar -xf gcc.tar.xz -C /usr/local --strip-components=1 && \
+    rm -f gcc.tar.xz
+
+# The da14531 SDK is not publicly available. So there needds to be a copy of it
+# in the same folder where the Dockerfile is.
+ENV SDK_PATH=/opt/DA145xx_SDK/6.0.22.1401
+RUN --mount=source=.,target=/mnt \
+    cd /opt && \
+    unzip /mnt/SDK_6.0.22.1401.zip && \
+    cd /opt/DA145xx_SDK/6.0.22.1401 && \
+    for patch in `ls /mnt/da14531-sdk/patches`; do patch -p1 < /mnt/da14531-sdk/patches/$patch; done
+
+# Install rust compiler
+ENV PATH=/opt/cargo/bin:$PATH RUSTUP_HOME=/opt/rustup
+RUN --mount=source=rust-toolchain.toml,target=/mnt/rust-toolchain.toml \
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | CARGO_HOME=/opt/cargo sh -s -- --default-toolchain $(grep -oP '(?<=channel = ")[^"]+' /mnt/rust-toolchain.toml) -y && \
+    rustup target add thumbv6m-none-eabi && \
+    rustup component add \
+    rustfmt \
+    clippy \
+    rust-src

Makefile

@@ -0,0 +1,46 @@
+# To replace docker with podman set `DOCKER=podman` in your environment
+DOCKER ?= docker
+
+.PHONY: dockerdev
+dockerdev:
+	@./scripts/dockerenv.sh
+
+.PHONY: dockerinit
+dockerinit:
+	${DOCKER} build -t shiftcrypto/da14531 .
+
+.PHONY: dockerpull
+dockerpull:
+	${DOCKER} pull shiftcrypto/da14531
+
+.PHONY: dockerpush
+dockerpush:
+	${DOCKER} build --push --platform linux/amd64,linux/arm64 -t shiftcrypto/da14531 .
+
+.PHONY: dockerstop
+dockerstop:
+	@./scripts/dockerenv.sh stop
+
+.PHONY: gdb-server
+gdb-server:
+	JLinkGDBServer -device da14531 -if SWD -ir
+
+.PHONY: rtt-client
+rtt-client:
+	telnet localhost 19021
+
+.PHONY: build
+build:
+	${MAKE} -C bitbox02-bt build
+
+.PHONY: run
+run:
+	${MAKE} -C bitbox02-bt run
+
+.PHONY: clean
+clean:
+	${MAKE} -C bitbox02-bt clean
+
+.PHONY: test
+test:
+	(cd u2fframing; cargo test test)

README.md

@@ -0,0 +1,51 @@
+# bitbox02 bluetooth firmware
+
+## Dependencies
+
+See Dockerfile for details
+
+* ARM GCC Toolchain
+* da14531 SDK
+
+## Develop using a dev container
+
+Run 
+
+```
+docker pull shiftcrypto/da14531
+```
+
+or fetch the SDK from renasys website and run
+
+```
+make dockerinit
+```
+
+To run the container you can run
+
+```
+make dockerdev
+```
+
+## Connect to device
+
+Run Jlink gdb server
+
+```
+make gdb-server
+```
+
+Run telnet to see rtt output
+
+```
+make rtt-client
+```
+
+Run gdb, which will load firmware into RAM and start execution. The gdbinit
+script assumes that you run from inside a container. If you run it on your host
+machine you will need to change the address gdb should connect to.
+
+```
+cd bitbox02-bt
+make run
+```

bitbox02-bt/.cargo/config.toml

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+[build]
+target = "thumbv6m-none-eabi"
+
+[patch.crates-io]
+da14531-sdk-macros = {path="../da14531-sdk-macros"}
+
+[target.thumbv6m-none-eabi]
+rustflags = [
+    "-C", "linker=arm-none-eabi-gcc",
+    "-C", "link-arg=-march=armv6s-m",
+    # Generate output map
+    "-C", "link-arg=-Wl,-Map=output.map",
+    "-C", "link-arg=-specs=nano.specs",
+    "-C", "link-arg=-specs=nosys.specs",
+    # By default cargo doesn't link witih libc. We need to link with libc since we use nano libc
+    '-C', "default-linker-libraries",
+    "-C", "link-arg=-Wl,-Tldscript_DA14531.lds",
+]
+
+[profile.release]
+opt-level = "z"
+lto = true
+debug = true # does not impact final binary
+codegen-units = 1
+
+[profile.dev]
+opt-level = "z"
+lto = true
+
+[env]
+DA14531_NON_RET_HEAP_SZ="2048"

bitbox02-bt/.cargo/runner-debug.toml

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+[target.thumbv6m-none-eabi]
+runner = "arm-none-eabi-gdb -x jlink-debug.gdb"

bitbox02-bt/.cargo/runner-release.toml

@@ -0,0 +1,2 @@
+[target.thumbv6m-none-eabi]
+runner = "arm-none-eabi-gdb -x jlink-release.gdb"

bitbox02-bt/.gitignore

@@ -0,0 +1,2 @@
+/target
+output.map