From: "chenmiao" <chenmiao@openatom.club>
To: <pbonzini@redhat.com>, <manos.pitsidianakis@linaro.org>,
<richard.henderson@linaro.org>, <philmd@linaro.org>
Cc: <qemu-rust@nongnu.org>, <qemu-devel@nongnu.org>,
<hust-os-kernel-patches@googlegroups.com>,
"Chao Liu" <chao.liu@openatom.club>,
"Chen Miao" <chenmiao@openatom.club>
Subject: [RFC 0/5] rust: hw: Add the I2C and the first GPIO device
Date: Sat, 25 Oct 2025 12:38:48 +0000 [thread overview]
Message-ID: <20251025123853.63139-1-chenmiao@openatom.club> (raw)
We have implemented I2C and the first GPIO device in Rust for QEMU.
Additionally, in the respective patches, we have shared our insights and
experiences regarding the use of Rust for device modeling within QEMU.
1. The first patch implements the BusState for the I2CBus infrastructure.
2. The second patch implements the I2CBus and I2CSlave infrastructure, along
with a discussion of the challenges encountered during the implementation.
3. The third patch moves the struct definition of the PCF8574 to the
corresponding header file.
4. The fourth patch provides a set of necessary helper functions for the PCF8574
GPIO device.
5. The fifth patch implements the PCF8574 GPIO device, along with a discussion
of the issues and considerations addressed during the implementation.
Regarding this series of patches, we have found that Rust for QEMU is indeed
still not mature enough and requires continuous iteration. Additionally, the
lack of basic documentation also needs to be addressed. In this regard, I hope
our team(HUST OpenAtom Open Source Club) can contribute to the documentation
efforts for Rust for QEMU.
Link: https://groups.google.com/g/hust-os-kernel-patches/c/z7vHWg3xvDc
Signed-off-by: Chao Liu <chao.liu@openatom.club>
Signed-off-by: Chen Miao <chenmiao@openatom.club>
chenmiao (5):
rust: hw: core: Add the BusState of rust version
rust: hw: core: Add rust bindings/funcs for i2c bus
hw: gpio: Move the pcf8574 struct to header
rust: hw: core: Provide some interfaces for the GPIO device
rust: hw: gpio: Add the the first gpio device pcf8574
hw/gpio/Kconfig | 5 +
hw/gpio/meson.build | 2 +-
hw/gpio/pcf8574.c | 32 ---
include/hw/gpio/pcf8574.h | 36 +++
rust/Cargo.lock | 21 +-
rust/Cargo.toml | 1 +
rust/hw/Kconfig | 1 +
rust/hw/core/meson.build | 2 +
rust/hw/core/src/bus.rs | 51 +++++
rust/hw/core/src/i2cbus.rs | 313 +++++++++++++++++++++++++++
rust/hw/core/src/irq.rs | 6 +-
rust/hw/core/src/lib.rs | 6 +
rust/hw/core/src/qdev.rs | 12 +-
rust/hw/core/wrapper.h | 1 +
rust/hw/gpio/Kconfig | 2 +
rust/hw/gpio/meson.build | 1 +
rust/hw/gpio/pcf8574/Cargo.toml | 31 +++
rust/hw/gpio/pcf8574/build.rs | 1 +
rust/hw/gpio/pcf8574/meson.build | 50 +++++
rust/hw/gpio/pcf8574/src/bindings.rs | 29 +++
rust/hw/gpio/pcf8574/src/device.rs | 174 +++++++++++++++
rust/hw/gpio/pcf8574/src/lib.rs | 4 +
rust/hw/gpio/pcf8574/wrapper.h | 51 +++++
rust/hw/meson.build | 1 +
24 files changed, 795 insertions(+), 38 deletions(-)
create mode 100644 rust/hw/core/src/bus.rs
create mode 100644 rust/hw/core/src/i2cbus.rs
create mode 100644 rust/hw/gpio/Kconfig
create mode 100644 rust/hw/gpio/meson.build
create mode 100644 rust/hw/gpio/pcf8574/Cargo.toml
create mode 120000 rust/hw/gpio/pcf8574/build.rs
create mode 100644 rust/hw/gpio/pcf8574/meson.build
create mode 100644 rust/hw/gpio/pcf8574/src/bindings.rs
create mode 100644 rust/hw/gpio/pcf8574/src/device.rs
create mode 100644 rust/hw/gpio/pcf8574/src/lib.rs
create mode 100644 rust/hw/gpio/pcf8574/wrapper.h
--
2.43.0
reply other threads:[~2025-10-25 14:28 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251025123853.63139-1-chenmiao@openatom.club \
--to=chenmiao@openatom.club \
--cc=chao.liu@openatom.club \
--cc=hust-os-kernel-patches@googlegroups.com \
--cc=manos.pitsidianakis@linaro.org \
--cc=pbonzini@redhat.com \
--cc=philmd@linaro.org \
--cc=qemu-devel@nongnu.org \
--cc=qemu-rust@nongnu.org \
--cc=richard.henderson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).