> +impl PL011State {
> + pub fn init(&mut self) {
> + let dev = addr_of_mut!(*self).cast::<DeviceState>();
One small thing that I forgot about, is that the init function should be unsafe.
For a short term change after this is merged, this should take not a
&mut self, but a "obj: &mut MaybeUninit<Self>".
It needs a utility macro like
fn uninit_field_mut<'a, U>(dest: *mut U) -> &'a mut MaybeUninit<U> {
unsafe { &mut *(dest.cast()) }
}
macro_rules! uninit_field_mut {
($container:expr, $field:ident) => {
$crate::uninit_field_mut(unsafe {
std::ptr::addr_of_mut!((&mut *$container.as_mut_ptr()).$field)
})
}
}
and initialization code like
p_clock = uninit_field_mut!(self, clock);
p_clock.write(NonNull::new(...));
and it's clearly less pretty; but it avoids comments like
// self.clock is not initialized at this point; but since
`NonNull<_>` is Copy,
// we can overwrite the undefined value without side effects.
and it is safer because MaybeUninit<> prevents calling other functions
of PL011State too early.
It would be nice to just add a TODO here, but it's not necessary.
Paolo
On Wed, Aug 28, 2024 at 6:12 AM Manos Pitsidianakis
<manos.pitsidiana...@linaro.org> wrote:
>
> This commit adds a re-implementation of hw/char/pl011.c in Rust.
>
> How to build:
>
> 1. Configure a QEMU build with:
> --enable-system --target-list=aarch64-softmmu --enable-rust
> 2. Launching a VM with qemu-system-aarch64 should use the Rust version
> of the pl011 device
>
> Co-authored-by: Junjie Mao <junjie....@intel.com>
> Co-authored-by: Paolo Bonzini <pbonz...@redhat.com>
> Signed-off-by: Junjie Mao <junjie....@intel.com>
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> ---
> MAINTAINERS | 5 +
> meson.build | 24 +
> hw/arm/Kconfig | 33 +-
> rust/Kconfig | 1 +
> rust/hw/Kconfig | 2 +
> rust/hw/char/Kconfig | 3 +
> rust/hw/char/meson.build | 1 +
> rust/hw/char/pl011/.gitignore | 2 +
> rust/hw/char/pl011/Cargo.lock | 134 +++++
> rust/hw/char/pl011/Cargo.toml | 26 +
> rust/hw/char/pl011/README.md | 31 ++
> rust/hw/char/pl011/meson.build | 26 +
> rust/hw/char/pl011/src/definitions.rs | 20 +
> rust/hw/char/pl011/src/device.rs | 594
> +++++++++++++++++++++
> rust/hw/char/pl011/src/device_class.rs | 59 ++
> rust/hw/char/pl011/src/lib.rs | 585 ++++++++++++++++++++
> rust/hw/char/pl011/src/memory_ops.rs | 57 ++
> rust/hw/meson.build | 1 +
> rust/meson.build | 2 +
> scripts/archive-source.sh | 5 +-
> scripts/make-release | 5 +-
> scripts/rust/rust_root_crate.sh | 13 +
> subprojects/.gitignore | 11 +
> subprojects/arbitrary-int-1-rs.wrap | 7 +
> subprojects/bilge-0.2-rs.wrap | 7 +
> subprojects/bilge-impl-0.2-rs.wrap | 7 +
> subprojects/either-1-rs.wrap | 7 +
> subprojects/itertools-0.11-rs.wrap | 7 +
> .../packagefiles/arbitrary-int-1-rs/meson.build | 19 +
> subprojects/packagefiles/bilge-0.2-rs/meson.build | 29 +
> .../packagefiles/bilge-impl-0.2-rs/meson.build | 45 ++
> subprojects/packagefiles/either-1-rs/meson.build | 24 +
> .../packagefiles/itertools-0.11-rs/meson.build | 30 ++
> .../packagefiles/proc-macro-error-1-rs/meson.build | 40 ++
> .../proc-macro-error-attr-1-rs/meson.build | 32 ++
> .../packagefiles/proc-macro2-1-rs/meson.build | 31 ++
> subprojects/packagefiles/quote-1-rs/meson.build | 29 +
> subprojects/packagefiles/syn-2-rs/meson.build | 40 ++
> .../packagefiles/unicode-ident-1-rs/meson.build | 20 +
> subprojects/proc-macro-error-1-rs.wrap | 7 +
> subprojects/proc-macro-error-attr-1-rs.wrap | 7 +
> subprojects/proc-macro2-1-rs.wrap | 7 +
> subprojects/quote-1-rs.wrap | 7 +
> subprojects/syn-2-rs.wrap | 7 +
> subprojects/unicode-ident-1-rs.wrap | 7 +
> 45 files changed, 2043 insertions(+), 13 deletions(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index
> 727f3a7a2cfe600ffdb861bafada7db415d020e5..cb65018b4bf3958952ecd7c8d703abee838cc265
> 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1189,6 +1189,11 @@ F: include/hw/*/microbit*.h
> F: tests/qtest/microbit-test.c
> F: docs/system/arm/nrf.rst
>
> +ARM PL011 Rust device
> +M: Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +S: Maintained
> +F: rust/hw/char/pl011/
> +
> AVR Machines
> -------------
>
> diff --git a/meson.build b/meson.build
> index
> 7f05466d128776ad8dbf403179734e6831b023c0..a4249fc24f77526b14a2fc570498d5ea34f48bbe
> 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -3489,6 +3489,7 @@ qom_ss = ss.source_set()
> system_ss = ss.source_set()
> specific_fuzz_ss = ss.source_set()
> specific_ss = ss.source_set()
> +rust_devices_ss = ss.source_set()
> stub_ss = ss.source_set()
> trace_ss = ss.source_set()
> user_ss = ss.source_set()
> @@ -4002,6 +4003,29 @@ foreach target : target_dirs
> arch_srcs += target_specific.sources()
> arch_deps += target_specific.dependencies()
>
> + if have_rust and have_system
> + target_rust = rust_devices_ss.apply(config_target, strict: false)
> + crates = []
> + foreach dep : target_rust.dependencies()
> + crates += dep.get_variable('crate')
> + endforeach
> + if crates.length() > 0
> + rlib_rs = custom_target('rust_' + target.underscorify() + '.rs',
> + output: 'rust_' + target.underscorify() +
> '.rs',
> + command:
> [find_program('scripts/rust/rust_root_crate.sh')] + crates,
> + capture: true,
> + build_by_default: true,
> + build_always_stale: true)
> + rlib = static_library('rust_' + target.underscorify(),
> + rlib_rs,
> + dependencies: target_rust.dependencies(),
> + override_options: ['rust_std=2021',
> 'build.rust_std=2021'],
> + rust_args: rustc_config_args,
> + rust_abi: 'c')
> + arch_deps += declare_dependency(link_whole: [rlib])
> + endif
> + endif
> +
> # allow using headers from the dependencies but do not include the sources,
> # because this emulator only needs those in "objects". For external
> # dependencies, the full dependency is included below in the executable.
> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index
> 1ad60da7aa2d1fcb157561461c229cb486b65e3a..45438c1bc4b842f6d28005c7efa0a3ac32272d37
> 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -20,7 +20,8 @@ config ARM_VIRT
> select PCI_EXPRESS
> select PCI_EXPRESS_GENERIC_BRIDGE
> select PFLASH_CFI01
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL031 # RTC
> select PL061 # GPIO
> select GPIO_PWR
> @@ -80,7 +81,8 @@ config HIGHBANK
> select AHCI
> select ARM_TIMER # sp804
> select ARM_V7M
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL022 # SPI
> select PL031 # RTC
> select PL061 # GPIO
> @@ -93,7 +95,8 @@ config INTEGRATOR
> depends on TCG && ARM
> select ARM_TIMER
> select INTEGRATOR_DEBUG
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL031 # RTC
> select PL041 # audio
> select PL050 # keyboard/mouse
> @@ -119,7 +122,8 @@ config MUSCA
> default y
> depends on TCG && ARM
> select ARMSSE
> - select PL011
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL031
> select SPLIT_IRQ
> select UNIMP
> @@ -228,7 +232,8 @@ config Z2
> depends on TCG && ARM
> select PFLASH_CFI01
> select WM8750
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PXA2XX
>
> config REALVIEW
> @@ -248,7 +253,8 @@ config REALVIEW
> select WM8750 # audio codec
> select LSI_SCSI_PCI
> select PCI
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL031 # RTC
> select PL041 # audio codec
> select PL050 # keyboard/mouse
> @@ -273,7 +279,8 @@ config SBSA_REF
> select PCI_EXPRESS
> select PCI_EXPRESS_GENERIC_BRIDGE
> select PFLASH_CFI01
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL031 # RTC
> select PL061 # GPIO
> select USB_XHCI_SYSBUS
> @@ -297,7 +304,8 @@ config STELLARIS
> select ARM_V7M
> select CMSDK_APB_WATCHDOG
> select I2C
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL022 # SPI
> select PL061 # GPIO
> select SSD0303 # OLED display
> @@ -356,7 +364,8 @@ config VEXPRESS
> select ARM_TIMER # sp804
> select LAN9118
> select PFLASH_CFI01
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select PL041 # audio codec
> select PL181 # display
> select REALVIEW
> @@ -440,7 +449,8 @@ config RASPI
> default y
> depends on TCG && ARM
> select FRAMEBUFFER
> - select PL011 # UART
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select SDHCI
> select USB_DWC2
> select BCM2835_SPI
> @@ -515,7 +525,8 @@ config XLNX_VERSAL
> select ARM_GIC
> select CPU_CLUSTER
> select DEVICE_TREE
> - select PL011
> + select PL011 if !HAVE_RUST # UART
> + select X_PL011_RUST if HAVE_RUST # UART
> select CADENCE
> select VIRTIO_MMIO
> select UNIMP
> diff --git a/rust/Kconfig b/rust/Kconfig
> index
> e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..f9f5c3909887451f71360a7986d79e57fdb43c91
> 100644
> --- a/rust/Kconfig
> +++ b/rust/Kconfig
> @@ -0,0 +1 @@
> +source hw/Kconfig
> diff --git a/rust/hw/Kconfig b/rust/hw/Kconfig
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..4d934f30afe13ddff418db8ec9e8b8eb25a9e8d0
> --- /dev/null
> +++ b/rust/hw/Kconfig
> @@ -0,0 +1,2 @@
> +# devices Kconfig
> +source char/Kconfig
> diff --git a/rust/hw/char/Kconfig b/rust/hw/char/Kconfig
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a1732a9e97fe3211547e30bc9319382e6394ed5b
> --- /dev/null
> +++ b/rust/hw/char/Kconfig
> @@ -0,0 +1,3 @@
> +config X_PL011_RUST
> + bool
> + default y if HAVE_RUST
> diff --git a/rust/hw/char/meson.build b/rust/hw/char/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..5716dc43ef6facdcf1cc963108347bbf4d12cf0e
> --- /dev/null
> +++ b/rust/hw/char/meson.build
> @@ -0,0 +1 @@
> +subdir('pl011')
> diff --git a/rust/hw/char/pl011/.gitignore b/rust/hw/char/pl011/.gitignore
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..71eaff2035d5a65b57ae32dfeecf3d87bbc7b396
> --- /dev/null
> +++ b/rust/hw/char/pl011/.gitignore
> @@ -0,0 +1,2 @@
> +# Ignore generated bindings file overrides.
> +src/bindings.rs.inc
> diff --git a/rust/hw/char/pl011/Cargo.lock b/rust/hw/char/pl011/Cargo.lock
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..b58cebb186e99efe184117bb931a341543d4466b
> --- /dev/null
> +++ b/rust/hw/char/pl011/Cargo.lock
> @@ -0,0 +1,134 @@
> +# This file is automatically @generated by Cargo.
> +# It is not intended for manual editing.
> +version = 3
> +
> +[[package]]
> +name = "arbitrary-int"
> +version = "1.2.7"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "c84fc003e338a6f69fbd4f7fe9f92b535ff13e9af8997f3b14b6ddff8b1df46d"
> +
> +[[package]]
> +name = "bilge"
> +version = "0.2.0"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "dc707ed8ebf81de5cd6c7f48f54b4c8621760926cdf35a57000747c512e67b57"
> +dependencies = [
> + "arbitrary-int",
> + "bilge-impl",
> +]
> +
> +[[package]]
> +name = "bilge-impl"
> +version = "0.2.0"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "feb11e002038ad243af39c2068c8a72bcf147acf05025dcdb916fcc000adb2d8"
> +dependencies = [
> + "itertools",
> + "proc-macro-error",
> + "proc-macro2",
> + "quote",
> + "syn",
> +]
> +
> +[[package]]
> +name = "either"
> +version = "1.12.0"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "3dca9240753cf90908d7e4aac30f630662b02aebaa1b58a3cadabdb23385b58b"
> +
> +[[package]]
> +name = "itertools"
> +version = "0.11.0"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "b1c173a5686ce8bfa551b3563d0c2170bf24ca44da99c7ca4bfdab5418c3fe57"
> +dependencies = [
> + "either",
> +]
> +
> +[[package]]
> +name = "pl011"
> +version = "0.1.0"
> +dependencies = [
> + "bilge",
> + "bilge-impl",
> + "qemu_api",
> + "qemu_api_macros",
> +]
> +
> +[[package]]
> +name = "proc-macro-error"
> +version = "1.0.4"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
> +dependencies = [
> + "proc-macro-error-attr",
> + "proc-macro2",
> + "quote",
> + "version_check",
> +]
> +
> +[[package]]
> +name = "proc-macro-error-attr"
> +version = "1.0.4"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
> +dependencies = [
> + "proc-macro2",
> + "quote",
> + "version_check",
> +]
> +
> +[[package]]
> +name = "proc-macro2"
> +version = "1.0.84"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "ec96c6a92621310b51366f1e28d05ef11489516e93be030060e5fc12024a49d6"
> +dependencies = [
> + "unicode-ident",
> +]
> +
> +[[package]]
> +name = "qemu_api"
> +version = "0.1.0"
> +
> +[[package]]
> +name = "qemu_api_macros"
> +version = "0.1.0"
> +dependencies = [
> + "proc-macro2",
> + "quote",
> + "syn",
> +]
> +
> +[[package]]
> +name = "quote"
> +version = "1.0.36"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
> +dependencies = [
> + "proc-macro2",
> +]
> +
> +[[package]]
> +name = "syn"
> +version = "2.0.66"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "c42f3f41a2de00b01c0aaad383c5a45241efc8b2d1eda5661812fda5f3cdcff5"
> +dependencies = [
> + "proc-macro2",
> + "quote",
> + "unicode-ident",
> +]
> +
> +[[package]]
> +name = "unicode-ident"
> +version = "1.0.12"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
> +
> +[[package]]
> +name = "version_check"
> +version = "0.9.4"
> +source = "registry+https://github.com/rust-lang/crates.io-index";
> +checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
> diff --git a/rust/hw/char/pl011/Cargo.toml b/rust/hw/char/pl011/Cargo.toml
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..b089e3dded623131ee13b4af8145b84388755df7
> --- /dev/null
> +++ b/rust/hw/char/pl011/Cargo.toml
> @@ -0,0 +1,26 @@
> +[package]
> +name = "pl011"
> +version = "0.1.0"
> +edition = "2021"
> +authors = ["Manos Pitsidianakis <manos.pitsidiana...@linaro.org>"]
> +license = "GPL-2.0-or-later"
> +readme = "README.md"
> +homepage = "https://www.qemu.org";
> +description = "pl011 device model for QEMU"
> +repository = "https://gitlab.com/epilys/rust-for-qemu";
> +resolver = "2"
> +publish = false
> +keywords = []
> +categories = []
> +
> +[lib]
> +crate-type = ["staticlib"]
> +
> +[dependencies]
> +bilge = { version = "0.2.0" }
> +bilge-impl = { version = "0.2.0" }
> +qemu_api = { path = "../../../qemu-api" }
> +qemu_api_macros = { path = "../../../qemu-api-macros" }
> +
> +# Do not include in any global workspace
> +[workspace]
> diff --git a/rust/hw/char/pl011/README.md b/rust/hw/char/pl011/README.md
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..cd7dea31634241cbf96b0be13f21d52bbd8ae750
> --- /dev/null
> +++ b/rust/hw/char/pl011/README.md
> @@ -0,0 +1,31 @@
> +# PL011 QEMU Device Model
> +
> +This library implements a device model for the PrimeCell® UART (PL011)
> +device in QEMU.
> +
> +## Build static lib
> +
> +Host build target must be explicitly specified:
> +
> +```sh
> +cargo build --target x86_64-unknown-linux-gnu
> +```
> +
> +Replace host target triplet if necessary.
> +
> +## Generate Rust documentation
> +
> +To generate docs for this crate, including private items:
> +
> +```sh
> +cargo doc --no-deps --document-private-items --target
> x86_64-unknown-linux-gnu
> +```
> +
> +To include direct dependencies like `bilge` (bitmaps for register types):
> +
> +```sh
> +cargo tree --depth 1 -e normal --prefix none \
> + | cut -d' ' -f1 \
> + | xargs printf -- '-p %s\n' \
> + | xargs cargo doc --no-deps --document-private-items --target
> x86_64-unknown-linux-gnu
> +```
> diff --git a/rust/hw/char/pl011/meson.build b/rust/hw/char/pl011/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..547cca5a96f7eef284caf1949380b65f7d015d92
> --- /dev/null
> +++ b/rust/hw/char/pl011/meson.build
> @@ -0,0 +1,26 @@
> +subproject('bilge-0.2-rs', required: true)
> +subproject('bilge-impl-0.2-rs', required: true)
> +
> +bilge_dep = dependency('bilge-0.2-rs')
> +bilge_impl_dep = dependency('bilge-impl-0.2-rs')
> +
> +_libpl011_rs = static_library(
> + 'pl011',
> + files('src/lib.rs'),
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + dependencies: [
> + bilge_dep,
> + bilge_impl_dep,
> + qemu_api,
> + qemu_api_macros,
> + ],
> +)
> +
> +rust_devices_ss.add(when: 'CONFIG_X_PL011_RUST', if_true:
> [declare_dependency(
> + link_whole: [_libpl011_rs],
> + # Putting proc macro crates in `dependencies` is necessary for Meson to
> find
> + # them when compiling the root per-target static rust lib.
> + dependencies: [bilge_impl_dep, qemu_api_macros],
> + variables: {'crate': 'pl011'},
> +)])
> diff --git a/rust/hw/char/pl011/src/definitions.rs
> b/rust/hw/char/pl011/src/definitions.rs
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..baafe1d3908e695a895c3f8ef4cae3e390654f1f
> --- /dev/null
> +++ b/rust/hw/char/pl011/src/definitions.rs
> @@ -0,0 +1,20 @@
> +// Copyright 2024, Linaro Limited
> +// Author(s): Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +
> +//! Definitions required by QEMU when registering the device.
> +
> +use core::mem::MaybeUninit;
> +
> +use qemu_api::{bindings::*, definitions::ObjectImpl};
> +
> +use crate::device::PL011State;
> +
> +pub const TYPE_PL011: &std::ffi::CStr = c"pl011";
> +
> +#[used]
> +pub static VMSTATE_PL011: VMStateDescription = VMStateDescription {
> + name: PL011State::TYPE_INFO.name,
> + unmigratable: true,
> + ..unsafe { MaybeUninit::<VMStateDescription>::zeroed().assume_init() }
> +};
> diff --git a/rust/hw/char/pl011/src/device.rs
> b/rust/hw/char/pl011/src/device.rs
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..07cf2fa4e1f3985b24a25e7cf86223bf699cf022
> --- /dev/null
> +++ b/rust/hw/char/pl011/src/device.rs
> @@ -0,0 +1,594 @@
> +// Copyright 2024, Linaro Limited
> +// Author(s): Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +
> +use core::{
> + ffi::{c_int, c_uchar, c_uint, c_void, CStr},
> + ptr::{addr_of, addr_of_mut, NonNull},
> +};
> +
> +use qemu_api::{
> + bindings::{self, *},
> + definitions::ObjectImpl,
> +};
> +
> +use crate::{
> + memory_ops::PL011_OPS,
> + registers::{self, Interrupt},
> + RegisterOffset,
> +};
> +
> +static PL011_ID_ARM: [c_uchar; 8] = [0x11, 0x10, 0x14, 0x00, 0x0d, 0xf0,
> 0x05, 0xb1];
> +
> +const DATA_BREAK: u32 = 1 << 10;
> +
> +/// QEMU sourced constant.
> +pub const PL011_FIFO_DEPTH: usize = 16_usize;
> +
> +#[repr(C)]
> +#[derive(Debug, qemu_api_macros::Object)]
> +/// PL011 Device Model in QEMU
> +pub struct PL011State {
> + pub parent_obj: SysBusDevice,
> + pub iomem: MemoryRegion,
> + pub readbuff: u32,
> + #[doc(alias = "fr")]
> + pub flags: registers::Flags,
> + #[doc(alias = "lcr")]
> + pub line_control: registers::LineControl,
> + #[doc(alias = "rsr")]
> + pub receive_status_error_clear: registers::ReceiveStatusErrorClear,
> + #[doc(alias = "cr")]
> + pub control: registers::Control,
> + pub dmacr: u32,
> + pub int_enabled: u32,
> + pub int_level: u32,
> + pub read_fifo: [u32; PL011_FIFO_DEPTH],
> + pub ilpr: u32,
> + pub ibrd: u32,
> + pub fbrd: u32,
> + pub ifl: u32,
> + pub read_pos: usize,
> + pub read_count: usize,
> + pub read_trigger: usize,
> + #[doc(alias = "chr")]
> + pub char_backend: CharBackend,
> + /// QEMU interrupts
> + ///
> + /// ```text
> + /// * sysbus MMIO region 0: device registers
> + /// * sysbus IRQ 0: `UARTINTR` (combined interrupt line)
> + /// * sysbus IRQ 1: `UARTRXINTR` (receive FIFO interrupt line)
> + /// * sysbus IRQ 2: `UARTTXINTR` (transmit FIFO interrupt line)
> + /// * sysbus IRQ 3: `UARTRTINTR` (receive timeout interrupt line)
> + /// * sysbus IRQ 4: `UARTMSINTR` (momem status interrupt line)
> + /// * sysbus IRQ 5: `UARTEINTR` (error interrupt line)
> + /// ```
> + #[doc(alias = "irq")]
> + pub interrupts: [qemu_irq; 6usize],
> + #[doc(alias = "clk")]
> + pub clock: NonNull<Clock>,
> + #[doc(alias = "migrate_clk")]
> + pub migrate_clock: bool,
> +}
> +
> +impl ObjectImpl for PL011State {
> + type Class = PL011Class;
> + const TYPE_INFO: qemu_api::bindings::TypeInfo = qemu_api::type_info! {
> Self };
> + const TYPE_NAME: &'static CStr = c"pl011";
> + const PARENT_TYPE_NAME: Option<&'static CStr> =
> Some(TYPE_SYS_BUS_DEVICE);
> + const ABSTRACT: bool = false;
> + const INSTANCE_INIT: Option<unsafe extern "C" fn(obj: *mut Object)> =
> Some(pl011_init);
> + const INSTANCE_POST_INIT: Option<unsafe extern "C" fn(obj: *mut Object)>
> = None;
> + const INSTANCE_FINALIZE: Option<unsafe extern "C" fn(obj: *mut Object)>
> = None;
> +}
> +
> +#[repr(C)]
> +pub struct PL011Class {
> + _inner: [u8; 0],
> +}
> +
> +impl qemu_api::definitions::Class for PL011Class {
> + const CLASS_INIT: Option<
> + unsafe extern "C" fn(klass: *mut ObjectClass, data: *mut
> core::ffi::c_void),
> + > = Some(crate::device_class::pl011_class_init);
> + const CLASS_BASE_INIT: Option<
> + unsafe extern "C" fn(klass: *mut ObjectClass, data: *mut
> core::ffi::c_void),
> + > = None;
> +}
> +
> +#[used]
> +pub static CLK_NAME: &CStr = c"clk";
> +
> +impl PL011State {
> + pub fn init(&mut self) {
> + let dev = addr_of_mut!(*self).cast::<DeviceState>();
> + // SAFETY:
> + //
> + // self and self.iomem are guaranteed to be valid at this point
> since callers
> + // must make sure the `self` reference is valid.
> + unsafe {
> + memory_region_init_io(
> + addr_of_mut!(self.iomem),
> + addr_of_mut!(*self).cast::<Object>(),
> + &PL011_OPS,
> + addr_of_mut!(*self).cast::<c_void>(),
> + Self::TYPE_INFO.name,
> + 0x1000,
> + );
> + let sbd = addr_of_mut!(*self).cast::<SysBusDevice>();
> + sysbus_init_mmio(sbd, addr_of_mut!(self.iomem));
> + for irq in self.interrupts.iter_mut() {
> + sysbus_init_irq(sbd, irq);
> + }
> + }
> + // SAFETY:
> + //
> + // self.clock is not initialized at this point; but since
> `NonNull<_>` is Copy,
> + // we can overwrite the undefined value without side effects. This is
> + // safe since all PL011State instances are created by QOM code which
> + // calls this function to initialize the fields; therefore no code is
> + // able to access an invalid self.clock value.
> + unsafe {
> + self.clock = NonNull::new(qdev_init_clock_in(
> + dev,
> + CLK_NAME.as_ptr(),
> + None, /* pl011_clock_update */
> + addr_of_mut!(*self).cast::<c_void>(),
> + ClockEvent_ClockUpdate,
> + ))
> + .unwrap();
> + }
> + }
> +
> + pub fn read(
> + &mut self,
> + offset: hwaddr,
> + _size: core::ffi::c_uint,
> + ) -> std::ops::ControlFlow<u64, u64> {
> + use RegisterOffset::*;
> +
> + std::ops::ControlFlow::Break(match RegisterOffset::try_from(offset) {
> + Err(v) if (0x3f8..0x400).contains(&v) => {
> + u64::from(PL011_ID_ARM[((offset - 0xfe0) >> 2) as usize])
> + }
> + Err(_) => {
> + // qemu_log_mask(LOG_GUEST_ERROR, "pl011_read: Bad offset
> 0x%x\n", (int)offset);
> + 0
> + }
> + Ok(DR) => {
> + // s->flags &= ~PL011_FLAG_RXFF;
> + self.flags.set_receive_fifo_full(false);
> + let c = self.read_fifo[self.read_pos];
> + if self.read_count > 0 {
> + self.read_count -= 1;
> + self.read_pos = (self.read_pos + 1) & (self.fifo_depth()
> - 1);
> + }
> + if self.read_count == 0 {
> + // self.flags |= PL011_FLAG_RXFE;
> + self.flags.set_receive_fifo_empty(true);
> + }
> + if self.read_count + 1 == self.read_trigger {
> + //self.int_level &= ~ INT_RX;
> + self.int_level &= !registers::INT_RX;
> + }
> + // Update error bits.
> + self.receive_status_error_clear = c.to_be_bytes()[3].into();
> + self.update();
> + // Must call qemu_chr_fe_accept_input, so return Continue:
> + return std::ops::ControlFlow::Continue(c.into());
> + }
> + Ok(RSR) => u8::from(self.receive_status_error_clear).into(),
> + Ok(FR) => u16::from(self.flags).into(),
> + Ok(FBRD) => self.fbrd.into(),
> + Ok(ILPR) => self.ilpr.into(),
> + Ok(IBRD) => self.ibrd.into(),
> + Ok(LCR_H) => u16::from(self.line_control).into(),
> + Ok(CR) => {
> + // We exercise our self-control.
> + u16::from(self.control).into()
> + }
> + Ok(FLS) => self.ifl.into(),
> + Ok(IMSC) => self.int_enabled.into(),
> + Ok(RIS) => self.int_level.into(),
> + Ok(MIS) => u64::from(self.int_level & self.int_enabled),
> + Ok(ICR) => {
> + // "The UARTICR Register is the interrupt clear register and
> is write-only"
> + // Source: ARM DDI 0183G 3.3.13 Interrupt Clear Register,
> UARTICR
> + 0
> + }
> + Ok(DMACR) => self.dmacr.into(),
> + })
> + }
> +
> + pub fn write(&mut self, offset: hwaddr, value: u64) {
> + // eprintln!("write offset {offset} value {value}");
> + use RegisterOffset::*;
> + let value: u32 = value as u32;
> + match RegisterOffset::try_from(offset) {
> + Err(_bad_offset) => {
> + eprintln!("write bad offset {offset} value {value}");
> + }
> + Ok(DR) => {
> + // ??? Check if transmitter is enabled.
> + let ch: u8 = value as u8;
> + // XXX this blocks entire thread. Rewrite to use
> + // qemu_chr_fe_write and background I/O callbacks
> +
> + // SAFETY: self.char_backend is a valid CharBackend instance
> after it's been
> + // initialized in realize().
> + unsafe {
> + qemu_chr_fe_write_all(addr_of_mut!(self.char_backend),
> &ch, 1);
> + }
> + self.loopback_tx(value);
> + self.int_level |= registers::INT_TX;
> + self.update();
> + }
> + Ok(RSR) => {
> + self.receive_status_error_clear = 0.into();
> + }
> + Ok(FR) => {
> + // flag writes are ignored
> + }
> + Ok(ILPR) => {
> + self.ilpr = value;
> + }
> + Ok(IBRD) => {
> + self.ibrd = value;
> + }
> + Ok(FBRD) => {
> + self.fbrd = value;
> + }
> + Ok(LCR_H) => {
> + let value = value as u16;
> + let new_val: registers::LineControl = value.into();
> + // Reset the FIFO state on FIFO enable or disable
> + if bool::from(self.line_control.fifos_enabled())
> + ^ bool::from(new_val.fifos_enabled())
> + {
> + self.reset_fifo();
> + }
> + if self.line_control.send_break() ^ new_val.send_break() {
> + let mut break_enable: c_int =
> new_val.send_break().into();
> + // SAFETY: self.char_backend is a valid CharBackend
> instance after it's been
> + // initialized in realize().
> + unsafe {
> + qemu_chr_fe_ioctl(
> + addr_of_mut!(self.char_backend),
> + CHR_IOCTL_SERIAL_SET_BREAK as i32,
> + addr_of_mut!(break_enable).cast::<c_void>(),
> + );
> + }
> + self.loopback_break(break_enable > 0);
> + }
> + self.line_control = new_val;
> + self.set_read_trigger();
> + }
> + Ok(CR) => {
> + // ??? Need to implement the enable bit.
> + let value = value as u16;
> + self.control = value.into();
> + self.loopback_mdmctrl();
> + }
> + Ok(FLS) => {
> + self.ifl = value;
> + self.set_read_trigger();
> + }
> + Ok(IMSC) => {
> + self.int_enabled = value;
> + self.update();
> + }
> + Ok(RIS) => {}
> + Ok(MIS) => {}
> + Ok(ICR) => {
> + self.int_level &= !value;
> + self.update();
> + }
> + Ok(DMACR) => {
> + self.dmacr = value;
> + if value & 3 > 0 {
> + // qemu_log_mask(LOG_UNIMP, "pl011: DMA not
> implemented\n");
> + eprintln!("pl011: DMA not implemented");
> + }
> + }
> + }
> + }
> +
> + #[inline]
> + fn loopback_tx(&mut self, value: u32) {
> + if !self.loopback_enabled() {
> + return;
> + }
> +
> + // Caveat:
> + //
> + // In real hardware, TX loopback happens at the serial-bit level
> + // and then reassembled by the RX logics back into bytes and placed
> + // into the RX fifo. That is, loopback happens after TX fifo.
> + //
> + // Because the real hardware TX fifo is time-drained at the frame
> + // rate governed by the configured serial format, some loopback
> + // bytes in TX fifo may still be able to get into the RX fifo
> + // that could be full at times while being drained at software
> + // pace.
> + //
> + // In such scenario, the RX draining pace is the major factor
> + // deciding which loopback bytes get into the RX fifo, unless
> + // hardware flow-control is enabled.
> + //
> + // For simplicity, the above described is not emulated.
> + self.put_fifo(value);
> + }
> +
> + fn loopback_mdmctrl(&mut self) {
> + if !self.loopback_enabled() {
> + return;
> + }
> +
> + /*
> + * Loopback software-driven modem control outputs to modem status
> inputs:
> + * FR.RI <= CR.Out2
> + * FR.DCD <= CR.Out1
> + * FR.CTS <= CR.RTS
> + * FR.DSR <= CR.DTR
> + *
> + * The loopback happens immediately even if this call is triggered
> + * by setting only CR.LBE.
> + *
> + * CTS/RTS updates due to enabled hardware flow controls are not
> + * dealt with here.
> + */
> +
> + //fr = s->flags & ~(PL011_FLAG_RI | PL011_FLAG_DCD |
> + // PL011_FLAG_DSR | PL011_FLAG_CTS);
> + //fr |= (cr & CR_OUT2) ? PL011_FLAG_RI : 0;
> + //fr |= (cr & CR_OUT1) ? PL011_FLAG_DCD : 0;
> + //fr |= (cr & CR_RTS) ? PL011_FLAG_CTS : 0;
> + //fr |= (cr & CR_DTR) ? PL011_FLAG_DSR : 0;
> + //
> + self.flags.set_ring_indicator(self.control.out_2());
> + self.flags.set_data_carrier_detect(self.control.out_1());
> + self.flags.set_clear_to_send(self.control.request_to_send());
> + self.flags
> + .set_data_set_ready(self.control.data_transmit_ready());
> +
> + // Change interrupts based on updated FR
> + let mut il = self.int_level;
> +
> + il &= !Interrupt::MS;
> + //il |= (fr & PL011_FLAG_DSR) ? INT_DSR : 0;
> + //il |= (fr & PL011_FLAG_DCD) ? INT_DCD : 0;
> + //il |= (fr & PL011_FLAG_CTS) ? INT_CTS : 0;
> + //il |= (fr & PL011_FLAG_RI) ? INT_RI : 0;
> +
> + if self.flags.data_set_ready() {
> + il |= Interrupt::DSR as u32;
> + }
> + if self.flags.data_carrier_detect() {
> + il |= Interrupt::DCD as u32;
> + }
> + if self.flags.clear_to_send() {
> + il |= Interrupt::CTS as u32;
> + }
> + if self.flags.ring_indicator() {
> + il |= Interrupt::RI as u32;
> + }
> + self.int_level = il;
> + self.update();
> + }
> +
> + fn loopback_break(&mut self, enable: bool) {
> + if enable {
> + self.loopback_tx(DATA_BREAK);
> + }
> + }
> +
> + fn set_read_trigger(&mut self) {
> + //#if 0
> + // /* The docs say the RX interrupt is triggered when the FIFO
> exceeds
> + // the threshold. However linux only reads the FIFO in
> response to an
> + // interrupt. Triggering the interrupt when the FIFO is
> non-empty seems
> + // to make things work. */
> + // if (s->lcr & LCR_FEN)
> + // s->read_trigger = (s->ifl >> 1) & 0x1c;
> + // else
> + //#endif
> + self.read_trigger = 1;
> + }
> +
> + pub fn realize(&mut self) {
> + // SAFETY: self.char_backend has the correct size and alignment for a
> + // CharBackend object, and its callbacks are of the correct types.
> + unsafe {
> + qemu_chr_fe_set_handlers(
> + addr_of_mut!(self.char_backend),
> + Some(pl011_can_receive),
> + Some(pl011_receive),
> + Some(pl011_event),
> + None,
> + addr_of_mut!(*self).cast::<c_void>(),
> + core::ptr::null_mut(),
> + true,
> + );
> + }
> + }
> +
> + pub fn reset(&mut self) {
> + self.line_control.reset();
> + self.receive_status_error_clear.reset();
> + self.dmacr = 0;
> + self.int_enabled = 0;
> + self.int_level = 0;
> + self.ilpr = 0;
> + self.ibrd = 0;
> + self.fbrd = 0;
> + self.read_trigger = 1;
> + self.ifl = 0x12;
> + self.control.reset();
> + self.flags = 0.into();
> + self.reset_fifo();
> + }
> +
> + pub fn reset_fifo(&mut self) {
> + self.read_count = 0;
> + self.read_pos = 0;
> +
> + /* Reset FIFO flags */
> + self.flags.reset();
> + }
> +
> + pub fn can_receive(&self) -> bool {
> + // trace_pl011_can_receive(s->lcr, s->read_count, r);
> + self.read_count < self.fifo_depth()
> + }
> +
> + pub fn event(&mut self, event: QEMUChrEvent) {
> + if event == bindings::QEMUChrEvent_CHR_EVENT_BREAK &&
> !self.fifo_enabled() {
> + self.put_fifo(DATA_BREAK);
> + self.receive_status_error_clear.set_break_error(true);
> + }
> + }
> +
> + #[inline]
> + pub fn fifo_enabled(&self) -> bool {
> + matches!(self.line_control.fifos_enabled(), registers::Mode::FIFO)
> + }
> +
> + #[inline]
> + pub fn loopback_enabled(&self) -> bool {
> + self.control.enable_loopback()
> + }
> +
> + #[inline]
> + pub fn fifo_depth(&self) -> usize {
> + // Note: FIFO depth is expected to be power-of-2
> + if self.fifo_enabled() {
> + return PL011_FIFO_DEPTH;
> + }
> + 1
> + }
> +
> + pub fn put_fifo(&mut self, value: c_uint) {
> + let depth = self.fifo_depth();
> + assert!(depth > 0);
> + let slot = (self.read_pos + self.read_count) & (depth - 1);
> + self.read_fifo[slot] = value;
> + self.read_count += 1;
> + // s->flags &= ~PL011_FLAG_RXFE;
> + self.flags.set_receive_fifo_empty(false);
> + if self.read_count == depth {
> + //s->flags |= PL011_FLAG_RXFF;
> + self.flags.set_receive_fifo_full(true);
> + }
> +
> + if self.read_count == self.read_trigger {
> + self.int_level |= registers::INT_RX;
> + self.update();
> + }
> + }
> +
> + pub fn update(&mut self) {
> + let flags = self.int_level & self.int_enabled;
> + for (irq, i) in self.interrupts.iter().zip(IRQMASK) {
> + // SAFETY: self.interrupts have been initialized in init().
> + unsafe { qemu_set_irq(*irq, i32::from(flags & i != 0)) };
> + }
> + }
> +}
> +
> +/// Which bits in the interrupt status matter for each outbound IRQ line ?
> +pub const IRQMASK: [u32; 6] = [
> + /* combined IRQ */
> + Interrupt::E
> + | Interrupt::MS
> + | Interrupt::RT as u32
> + | Interrupt::TX as u32
> + | Interrupt::RX as u32,
> + Interrupt::RX as u32,
> + Interrupt::TX as u32,
> + Interrupt::RT as u32,
> + Interrupt::MS,
> + Interrupt::E,
> +];
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_can_receive(opaque: *mut c_void) -> c_int {
> + assert!(!opaque.is_null());
> + let state = NonNull::new_unchecked(opaque.cast::<PL011State>());
> + state.as_ref().can_receive().into()
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +///
> +/// The buffer and size arguments must also be valid.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_receive(
> + opaque: *mut core::ffi::c_void,
> + buf: *const u8,
> + size: core::ffi::c_int,
> +) {
> + assert!(!opaque.is_null());
> + let mut state = NonNull::new_unchecked(opaque.cast::<PL011State>());
> + if state.as_ref().loopback_enabled() {
> + return;
> + }
> + if size > 0 {
> + assert!(!buf.is_null());
> + state
> + .as_mut()
> + .put_fifo(c_uint::from(unsafe { buf.read_volatile() }))
> + }
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_event(opaque: *mut core::ffi::c_void, event:
> QEMUChrEvent) {
> + assert!(!opaque.is_null());
> + let mut state = NonNull::new_unchecked(opaque.cast::<PL011State>());
> + state.as_mut().event(event)
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer for
> `chr`.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_create(
> + addr: u64,
> + irq: qemu_irq,
> + chr: *mut Chardev,
> +) -> *mut DeviceState {
> + let dev: *mut DeviceState = unsafe {
> qdev_new(PL011State::TYPE_INFO.name) };
> + assert!(!dev.is_null());
> + let sysbus: *mut SysBusDevice = dev as *mut SysBusDevice;
> +
> + qdev_prop_set_chr(dev, bindings::TYPE_CHARDEV.as_ptr(), chr);
> + sysbus_realize_and_unref(sysbus, addr_of!(error_fatal) as *mut *mut
> Error);
> + sysbus_mmio_map(sysbus, 0, addr);
> + sysbus_connect_irq(sysbus, 0, irq);
> + dev
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_init(obj: *mut Object) {
> + assert!(!obj.is_null());
> + let mut state = NonNull::new_unchecked(obj.cast::<PL011State>());
> + state.as_mut().init();
> +}
> diff --git a/rust/hw/char/pl011/src/device_class.rs
> b/rust/hw/char/pl011/src/device_class.rs
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..631d276e72d444011ef5ef28ce169815439011d6
> --- /dev/null
> +++ b/rust/hw/char/pl011/src/device_class.rs
> @@ -0,0 +1,59 @@
> +// Copyright 2024, Linaro Limited
> +// Author(s): Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +
> +use core::ptr::NonNull;
> +
> +use qemu_api::bindings::*;
> +
> +use crate::{definitions::VMSTATE_PL011, device::PL011State};
> +
> +qemu_api::declare_properties! {
> + PL011_PROPERTIES,
> + qemu_api::define_property!(
> + c"chardev",
> + PL011State,
> + char_backend,
> + unsafe { &qdev_prop_chr },
> + CharBackend
> + ),
> + qemu_api::define_property!(
> + c"migrate-clk",
> + PL011State,
> + migrate_clock,
> + unsafe { &qdev_prop_bool },
> + bool
> + ),
> +}
> +
> +qemu_api::device_class_init! {
> + pl011_class_init,
> + props => PL011_PROPERTIES,
> + realize_fn => Some(pl011_realize),
> + reset_fn => Some(pl011_reset),
> + vmsd => VMSTATE_PL011,
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_realize(dev: *mut DeviceState, _errp: *mut
> *mut Error) {
> + assert!(!dev.is_null());
> + let mut state = NonNull::new_unchecked(dev.cast::<PL011State>());
> + state.as_mut().realize();
> +}
> +
> +/// # Safety
> +///
> +/// We expect the FFI user of this function to pass a valid pointer, that has
> +/// the same size as [`PL011State`]. We also expect the device is
> +/// readable/writeable from one thread at any time.
> +#[no_mangle]
> +pub unsafe extern "C" fn pl011_reset(dev: *mut DeviceState) {
> + assert!(!dev.is_null());
> + let mut state = NonNull::new_unchecked(dev.cast::<PL011State>());
> + state.as_mut().reset();
> +}
> diff --git a/rust/hw/char/pl011/src/lib.rs b/rust/hw/char/pl011/src/lib.rs
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..54de89538a59c6f29a419279200f75d516913bad
> --- /dev/null
> +++ b/rust/hw/char/pl011/src/lib.rs
> @@ -0,0 +1,585 @@
> +// Copyright 2024, Linaro Limited
> +// Author(s): Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +//
> +// PL011 QEMU Device Model
> +//
> +// This library implements a device model for the PrimeCell® UART (PL011)
> +// device in QEMU.
> +//
> +#![doc = include_str!("../README.md")]
> +//! # Library crate
> +//!
> +//! See [`PL011State`](crate::device::PL011State) for the device model type
> and
> +//! the [`registers`] module for register types.
> +
> +#![deny(
> + rustdoc::broken_intra_doc_links,
> + rustdoc::redundant_explicit_links,
> + clippy::correctness,
> + clippy::suspicious,
> + clippy::complexity,
> + clippy::perf,
> + clippy::cargo,
> + clippy::nursery,
> + clippy::style,
> + // restriction group
> + clippy::dbg_macro,
> + clippy::as_underscore,
> + clippy::assertions_on_result_states,
> + // pedantic group
> + clippy::doc_markdown,
> + clippy::borrow_as_ptr,
> + clippy::cast_lossless,
> + clippy::option_if_let_else,
> + clippy::missing_const_for_fn,
> + clippy::cognitive_complexity,
> + clippy::missing_safety_doc,
> + )]
> +
> +extern crate bilge;
> +extern crate bilge_impl;
> +extern crate qemu_api;
> +
> +pub mod definitions;
> +pub mod device;
> +pub mod device_class;
> +pub mod memory_ops;
> +
> +/// Offset of each register from the base memory address of the device.
> +///
> +/// # Source
> +/// ARM DDI 0183G, Table 3-1 p.3-3
> +#[doc(alias = "offset")]
> +#[allow(non_camel_case_types)]
> +#[repr(u64)]
> +#[derive(Debug)]
> +pub enum RegisterOffset {
> + /// Data Register
> + ///
> + /// A write to this register initiates the actual data transmission
> + #[doc(alias = "UARTDR")]
> + DR = 0x000,
> + /// Receive Status Register or Error Clear Register
> + #[doc(alias = "UARTRSR")]
> + #[doc(alias = "UARTECR")]
> + RSR = 0x004,
> + /// Flag Register
> + ///
> + /// A read of this register shows if transmission is complete
> + #[doc(alias = "UARTFR")]
> + FR = 0x018,
> + /// Fractional Baud Rate Register
> + ///
> + /// responsible for baud rate speed
> + #[doc(alias = "UARTFBRD")]
> + FBRD = 0x028,
> + /// `IrDA` Low-Power Counter Register
> + #[doc(alias = "UARTILPR")]
> + ILPR = 0x020,
> + /// Integer Baud Rate Register
> + ///
> + /// Responsible for baud rate speed
> + #[doc(alias = "UARTIBRD")]
> + IBRD = 0x024,
> + /// line control register (data frame format)
> + #[doc(alias = "UARTLCR_H")]
> + LCR_H = 0x02C,
> + /// Toggle UART, transmission or reception
> + #[doc(alias = "UARTCR")]
> + CR = 0x030,
> + /// Interrupt FIFO Level Select Register
> + #[doc(alias = "UARTIFLS")]
> + FLS = 0x034,
> + /// Interrupt Mask Set/Clear Register
> + #[doc(alias = "UARTIMSC")]
> + IMSC = 0x038,
> + /// Raw Interrupt Status Register
> + #[doc(alias = "UARTRIS")]
> + RIS = 0x03C,
> + /// Masked Interrupt Status Register
> + #[doc(alias = "UARTMIS")]
> + MIS = 0x040,
> + /// Interrupt Clear Register
> + #[doc(alias = "UARTICR")]
> + ICR = 0x044,
> + /// DMA control Register
> + #[doc(alias = "UARTDMACR")]
> + DMACR = 0x048,
> + ///// Reserved, offsets `0x04C` to `0x07C`.
> + //Reserved = 0x04C,
> +}
> +
> +impl core::convert::TryFrom<u64> for RegisterOffset {
> + type Error = u64;
> +
> + fn try_from(value: u64) -> Result<Self, Self::Error> {
> + macro_rules! case {
> + ($($discriminant:ident),*$(,)*) => {
> + /* check that matching on all macro arguments compiles,
> which means we are not
> + * missing any enum value; if the type definition ever
> changes this will stop
> + * compiling.
> + */
> + const fn _assert_exhaustive(val: RegisterOffset) {
> + match val {
> + $(RegisterOffset::$discriminant => (),)*
> + }
> + }
> +
> + match value {
> + $(x if x == Self::$discriminant as u64 =>
> Ok(Self::$discriminant),)*
> + _ => Err(value),
> + }
> + }
> + }
> + case! { DR, RSR, FR, FBRD, ILPR, IBRD, LCR_H, CR, FLS, IMSC, RIS,
> MIS, ICR, DMACR }
> + }
> +}
> +
> +pub mod registers {
> + //! Device registers exposed as typed structs which are backed by
> arbitrary
> + //! integer bitmaps. [`Data`], [`Control`], [`LineControl`], etc.
> + //!
> + //! All PL011 registers are essentially 32-bit wide, but are typed here
> as
> + //! bitmaps with only the necessary width. That is, if a struct bitmap
> + //! in this module is for example 16 bits long, it should be conceived
> + //! as a 32-bit register where the unmentioned higher bits are always
> + //! unused thus treated as zero when read or written.
> + use bilge::prelude::*;
> +
> + // TODO: FIFO Mode has different semantics
> + /// Data Register, `UARTDR`
> + ///
> + /// The `UARTDR` register is the data register.
> + ///
> + /// For words to be transmitted:
> + ///
> + /// - if the FIFOs are enabled, data written to this location is pushed
> onto
> + /// the transmit
> + /// FIFO
> + /// - if the FIFOs are not enabled, data is stored in the transmitter
> + /// holding register (the
> + /// bottom word of the transmit FIFO).
> + ///
> + /// The write operation initiates transmission from the UART. The data is
> + /// prefixed with a start bit, appended with the appropriate parity bit
> + /// (if parity is enabled), and a stop bit. The resultant word is then
> + /// transmitted.
> + ///
> + /// For received words:
> + ///
> + /// - if the FIFOs are enabled, the data byte and the 4-bit status
> (break,
> + /// frame, parity,
> + /// and overrun) is pushed onto the 12-bit wide receive FIFO
> + /// - if the FIFOs are not enabled, the data byte and status are stored
> in
> + /// the receiving
> + /// holding register (the bottom word of the receive FIFO).
> + ///
> + /// The received data byte is read by performing reads from the `UARTDR`
> + /// register along with the corresponding status information. The status
> + /// information can also be read by a read of the `UARTRSR/UARTECR`
> + /// register.
> + ///
> + /// # Note
> + ///
> + /// You must disable the UART before any of the control registers are
> + /// reprogrammed. When the UART is disabled in the middle of
> + /// transmission or reception, it completes the current character before
> + /// stopping.
> + ///
> + /// # Source
> + /// ARM DDI 0183G 3.3.1 Data Register, UARTDR
> + #[bitsize(16)]
> + #[derive(Clone, Copy, DebugBits, FromBits)]
> + #[doc(alias = "UARTDR")]
> + pub struct Data {
> + _reserved: u4,
> + pub data: u8,
> + pub framing_error: bool,
> + pub parity_error: bool,
> + pub break_error: bool,
> + pub overrun_error: bool,
> + }
> +
> + // TODO: FIFO Mode has different semantics
> + /// Receive Status Register / Error Clear Register, `UARTRSR/UARTECR`
> + ///
> + /// The UARTRSR/UARTECR register is the receive status register/error
> clear
> + /// register. Receive status can also be read from the `UARTRSR`
> + /// register. If the status is read from this register, then the status
> + /// information for break, framing and parity corresponds to the
> + /// data character read from the [Data register](Data), `UARTDR` prior to
> + /// reading the UARTRSR register. The status information for overrun is
> + /// set immediately when an overrun condition occurs.
> + ///
> + ///
> + /// # Note
> + /// The received data character must be read first from the [Data
> + /// Register](Data), `UARTDR` before reading the error status associated
> + /// with that data character from the `UARTRSR` register. This read
> + /// sequence cannot be reversed, because the `UARTRSR` register is
> + /// updated only when a read occurs from the `UARTDR` register. However,
> + /// the status information can also be obtained by reading the `UARTDR`
> + /// register
> + ///
> + /// # Source
> + /// ARM DDI 0183G 3.3.2 Receive Status Register/Error Clear Register,
> + /// UARTRSR/UARTECR
> + #[bitsize(8)]
> + #[derive(Clone, Copy, DebugBits, FromBits)]
> + pub struct ReceiveStatusErrorClear {
> + pub framing_error: bool,
> + pub parity_error: bool,
> + pub break_error: bool,
> + pub overrun_error: bool,
> + _reserved_unpredictable: u4,
> + }
> +
> + impl ReceiveStatusErrorClear {
> + pub fn reset(&mut self) {
> + // All the bits are cleared to 0 on reset.
> + *self = 0.into();
> + }
> + }
> +
> + impl Default for ReceiveStatusErrorClear {
> + fn default() -> Self {
> + 0.into()
> + }
> + }
> +
> + #[bitsize(16)]
> + #[derive(Clone, Copy, DebugBits, FromBits)]
> + /// Flag Register, `UARTFR`
> + #[doc(alias = "UARTFR")]
> + pub struct Flags {
> + /// CTS Clear to send. This bit is the complement of the UART clear
> to
> + /// send, `nUARTCTS`, modem status input. That is, the bit is 1
> + /// when `nUARTCTS` is LOW.
> + pub clear_to_send: bool,
> + /// DSR Data set ready. This bit is the complement of the UART data
> set
> + /// ready, `nUARTDSR`, modem status input. That is, the bit is 1 when
> + /// `nUARTDSR` is LOW.
> + pub data_set_ready: bool,
> + /// DCD Data carrier detect. This bit is the complement of the UART
> data
> + /// carrier detect, `nUARTDCD`, modem status input. That is, the bit
> is
> + /// 1 when `nUARTDCD` is LOW.
> + pub data_carrier_detect: bool,
> + /// BUSY UART busy. If this bit is set to 1, the UART is busy
> + /// transmitting data. This bit remains set until the complete
> + /// byte, including all the stop bits, has been sent from the
> + /// shift register. This bit is set as soon as the transmit FIFO
> + /// becomes non-empty, regardless of whether the UART is enabled
> + /// or not.
> + pub busy: bool,
> + /// RXFE Receive FIFO empty. The meaning of this bit depends on the
> + /// state of the FEN bit in the UARTLCR_H register. If the FIFO
> + /// is disabled, this bit is set when the receive holding
> + /// register is empty. If the FIFO is enabled, the RXFE bit is
> + /// set when the receive FIFO is empty.
> + pub receive_fifo_empty: bool,
> + /// TXFF Transmit FIFO full. The meaning of this bit depends on the
> + /// state of the FEN bit in the UARTLCR_H register. If the FIFO
> + /// is disabled, this bit is set when the transmit holding
> + /// register is full. If the FIFO is enabled, the TXFF bit is
> + /// set when the transmit FIFO is full.
> + pub transmit_fifo_full: bool,
> + /// RXFF Receive FIFO full. The meaning of this bit depends on the
> state
> + /// of the FEN bit in the UARTLCR_H register. If the FIFO is
> + /// disabled, this bit is set when the receive holding register
> + /// is full. If the FIFO is enabled, the RXFF bit is set when
> + /// the receive FIFO is full.
> + pub receive_fifo_full: bool,
> + /// Transmit FIFO empty. The meaning of this bit depends on the
> state of
> + /// the FEN bit in the [Line Control register](LineControl),
> + /// `UARTLCR_H`. If the FIFO is disabled, this bit is set when the
> + /// transmit holding register is empty. If the FIFO is enabled,
> + /// the TXFE bit is set when the transmit FIFO is empty. This
> + /// bit does not indicate if there is data in the transmit shift
> + /// register.
> + pub transmit_fifo_empty: bool,
> + /// `RI`, is `true` when `nUARTRI` is `LOW`.
> + pub ring_indicator: bool,
> + _reserved_zero_no_modify: u7,
> + }
> +
> + impl Flags {
> + pub fn reset(&mut self) {
> + // After reset TXFF, RXFF, and BUSY are 0, and TXFE and RXFE are
> 1
> + self.set_receive_fifo_full(false);
> + self.set_transmit_fifo_full(false);
> + self.set_busy(false);
> + self.set_receive_fifo_empty(true);
> + self.set_transmit_fifo_empty(true);
> + }
> + }
> +
> + impl Default for Flags {
> + fn default() -> Self {
> + let mut ret: Self = 0.into();
> + ret.reset();
> + ret
> + }
> + }
> +
> + #[bitsize(16)]
> + #[derive(Clone, Copy, DebugBits, FromBits)]
> + /// Line Control Register, `UARTLCR_H`
> + #[doc(alias = "UARTLCR_H")]
> + pub struct LineControl {
> + /// 15:8 - Reserved, do not modify, read as zero.
> + _reserved_zero_no_modify: u8,
> + /// 7 SPS Stick parity select.
> + /// 0 = stick parity is disabled
> + /// 1 = either:
> + /// • if the EPS bit is 0 then the parity bit is transmitted and
> checked
> + /// as a 1 • if the EPS bit is 1 then the parity bit is
> + /// transmitted and checked as a 0. This bit has no effect when
> + /// the PEN bit disables parity checking and generation. See Table
> 3-11
> + /// on page 3-14 for the parity truth table.
> + pub sticky_parity: bool,
> + /// WLEN Word length. These bits indicate the number of data bits
> + /// transmitted or received in a frame as follows: b11 = 8 bits
> + /// b10 = 7 bits
> + /// b01 = 6 bits
> + /// b00 = 5 bits.
> + pub word_length: WordLength,
> + /// FEN Enable FIFOs:
> + /// 0 = FIFOs are disabled (character mode) that is, the FIFOs become
> + /// 1-byte-deep holding registers 1 = transmit and receive FIFO
> + /// buffers are enabled (FIFO mode).
> + pub fifos_enabled: Mode,
> + /// 3 STP2 Two stop bits select. If this bit is set to 1, two stop
> bits
> + /// are transmitted at the end of the frame. The receive
> + /// logic does not check for two stop bits being received.
> + pub two_stops_bits: bool,
> + /// EPS Even parity select. Controls the type of parity the UART uses
> + /// during transmission and reception:
> + /// - 0 = odd parity. The UART generates or checks for an odd number
> of
> + /// 1s in the data and parity bits.
> + /// - 1 = even parity. The UART generates or checks for an even
> number
> + /// of 1s in the data and parity bits.
> + /// This bit has no effect when the `PEN` bit disables parity
> checking
> + /// and generation. See Table 3-11 on page 3-14 for the parity
> + /// truth table.
> + pub parity: Parity,
> + /// 1 PEN Parity enable:
> + ///
> + /// - 0 = parity is disabled and no parity bit added to the data
> frame
> + /// - 1 = parity checking and generation is enabled.
> + ///
> + /// See Table 3-11 on page 3-14 for the parity truth table.
> + pub parity_enabled: bool,
> + /// BRK Send break.
> + ///
> + /// If this bit is set to `1`, a low-level is continually output on
> the
> + /// `UARTTXD` output, after completing transmission of the
> + /// current character. For the proper execution of the break command,
> + /// the software must set this bit for at least two complete
> + /// frames. For normal use, this bit must be cleared to `0`.
> + pub send_break: bool,
> + }
> +
> + impl LineControl {
> + pub fn reset(&mut self) {
> + // All the bits are cleared to 0 when reset.
> + *self = 0.into();
> + }
> + }
> +
> + impl Default for LineControl {
> + fn default() -> Self {
> + 0.into()
> + }
> + }
> +
> + #[bitsize(1)]
> + #[derive(Clone, Copy, Debug, Eq, FromBits, PartialEq)]
> + /// `EPS` "Even parity select", field of [Line Control
> + /// register](LineControl).
> + pub enum Parity {
> + /// - 0 = odd parity. The UART generates or checks for an odd number
> of
> + /// 1s in the data and parity bits.
> + Odd = 0,
> + /// - 1 = even parity. The UART generates or checks for an even
> number
> + /// of 1s in the data and parity bits.
> + Even = 1,
> + }
> +
> + #[bitsize(1)]
> + #[derive(Clone, Copy, Debug, Eq, FromBits, PartialEq)]
> + /// `FEN` "Enable FIFOs" or Device mode, field of [Line Control
> + /// register](LineControl).
> + pub enum Mode {
> + /// 0 = FIFOs are disabled (character mode) that is, the FIFOs become
> + /// 1-byte-deep holding registers
> + Character = 0,
> + /// 1 = transmit and receive FIFO buffers are enabled (FIFO mode).
> + FIFO = 1,
> + }
> +
> + impl From<Mode> for bool {
> + fn from(val: Mode) -> Self {
> + matches!(val, Mode::FIFO)
> + }
> + }
> +
> + #[bitsize(2)]
> + #[derive(Clone, Copy, Debug, Eq, FromBits, PartialEq)]
> + /// `WLEN` Word length, field of [Line Control register](LineControl).
> + ///
> + /// These bits indicate the number of data bits transmitted or received
> in a
> + /// frame as follows:
> + pub enum WordLength {
> + /// b11 = 8 bits
> + _8Bits = 0b11,
> + /// b10 = 7 bits
> + _7Bits = 0b10,
> + /// b01 = 6 bits
> + _6Bits = 0b01,
> + /// b00 = 5 bits.
> + _5Bits = 0b00,
> + }
> +
> + /// Control Register, `UARTCR`
> + ///
> + /// The `UARTCR` register is the control register. All the bits are
> cleared
> + /// to `0` on reset except for bits `9` and `8` that are set to `1`.
> + ///
> + /// # Source
> + /// ARM DDI 0183G, 3.3.8 Control Register, `UARTCR`, Table 3-12
> + #[bitsize(16)]
> + #[doc(alias = "UARTCR")]
> + #[derive(Clone, Copy, DebugBits, FromBits)]
> + pub struct Control {
> + /// `UARTEN` UART enable: 0 = UART is disabled. If the UART is
> disabled
> + /// in the middle of transmission or reception, it completes the
> current
> + /// character before stopping. 1 = the UART is enabled. Data
> + /// transmission and reception occurs for either UART signals or SIR
> + /// signals depending on the setting of the SIREN bit.
> + pub enable_uart: bool,
> + /// `SIREN` `SIR` enable: 0 = IrDA SIR ENDEC is disabled. `nSIROUT`
> + /// remains LOW (no light pulse generated), and signal transitions on
> + /// SIRIN have no effect. 1 = IrDA SIR ENDEC is enabled. Data is
> + /// transmitted and received on nSIROUT and SIRIN. UARTTXD remains
> HIGH,
> + /// in the marking state. Signal transitions on UARTRXD or modem
> status
> + /// inputs have no effect. This bit has no effect if the UARTEN bit
> + /// disables the UART.
> + pub enable_sir: bool,
> + /// `SIRLP` SIR low-power IrDA mode. This bit selects the IrDA
> encoding
> + /// mode. If this bit is cleared to 0, low-level bits are
> transmitted as
> + /// an active high pulse with a width of 3/ 16th of the bit period.
> If
> + /// this bit is set to 1, low-level bits are transmitted with a pulse
> + /// width that is 3 times the period of the IrLPBaud16 input signal,
> + /// regardless of the selected bit rate. Setting this bit uses less
> + /// power, but might reduce transmission distances.
> + pub sir_lowpower_irda_mode: u1,
> + /// Reserved, do not modify, read as zero.
> + _reserved_zero_no_modify: u4,
> + /// `LBE` Loopback enable. If this bit is set to 1 and the SIREN bit
> is
> + /// set to 1 and the SIRTEST bit in the Test Control register,
> UARTTCR
> + /// on page 4-5 is set to 1, then the nSIROUT path is inverted, and
> fed
> + /// through to the SIRIN path. The SIRTEST bit in the test register
> must
> + /// be set to 1 to override the normal half-duplex SIR operation.
> This
> + /// must be the requirement for accessing the test registers during
> + /// normal operation, and SIRTEST must be cleared to 0 when loopback
> + /// testing is finished. This feature reduces the amount of external
> + /// coupling required during system test. If this bit is set to 1,
> and
> + /// the SIRTEST bit is set to 0, the UARTTXD path is fed through to
> the
> + /// UARTRXD path. In either SIR mode or UART mode, when this bit is
> set,
> + /// the modem outputs are also fed through to the modem inputs. This
> bit
> + /// is cleared to 0 on reset, to disable loopback.
> + pub enable_loopback: bool,
> + /// `TXE` Transmit enable. If this bit is set to 1, the transmit
> section
> + /// of the UART is enabled. Data transmission occurs for either UART
> + /// signals, or SIR signals depending on the setting of the SIREN
> bit.
> + /// When the UART is disabled in the middle of transmission, it
> + /// completes the current character before stopping.
> + pub enable_transmit: bool,
> + /// `RXE` Receive enable. If this bit is set to 1, the receive
> section
> + /// of the UART is enabled. Data reception occurs for either UART
> + /// signals or SIR signals depending on the setting of the SIREN bit.
> + /// When the UART is disabled in the middle of reception, it
> completes
> + /// the current character before stopping.
> + pub enable_receive: bool,
> + /// `DTR` Data transmit ready. This bit is the complement of the UART
> + /// data transmit ready, `nUARTDTR`, modem status output. That is,
> when
> + /// the bit is programmed to a 1 then `nUARTDTR` is LOW.
> + pub data_transmit_ready: bool,
> + /// `RTS` Request to send. This bit is the complement of the UART
> + /// request to send, `nUARTRTS`, modem status output. That is, when
> the
> + /// bit is programmed to a 1 then `nUARTRTS` is LOW.
> + pub request_to_send: bool,
> + /// `Out1` This bit is the complement of the UART Out1 (`nUARTOut1`)
> + /// modem status output. That is, when the bit is programmed to a 1
> the
> + /// output is 0. For DTE this can be used as Data Carrier Detect
> (DCD).
> + pub out_1: bool,
> + /// `Out2` This bit is the complement of the UART Out2 (`nUARTOut2`)
> + /// modem status output. That is, when the bit is programmed to a 1,
> the
> + /// output is 0. For DTE this can be used as Ring Indicator (RI).
> + pub out_2: bool,
> + /// `RTSEn` RTS hardware flow control enable. If this bit is set to
> 1,
> + /// RTS hardware flow control is enabled. Data is only requested when
> + /// there is space in the receive FIFO for it to be received.
> + pub rts_hardware_flow_control_enable: bool,
> + /// `CTSEn` CTS hardware flow control enable. If this bit is set to
> 1,
> + /// CTS hardware flow control is enabled. Data is only transmitted
> when
> + /// the `nUARTCTS` signal is asserted.
> + pub cts_hardware_flow_control_enable: bool,
> + }
> +
> + impl Control {
> + pub fn reset(&mut self) {
> + *self = 0.into();
> + self.set_enable_receive(true);
> + self.set_enable_transmit(true);
> + }
> + }
> +
> + impl Default for Control {
> + fn default() -> Self {
> + let mut ret: Self = 0.into();
> + ret.reset();
> + ret
> + }
> + }
> +
> + /// Interrupt status bits in UARTRIS, UARTMIS, UARTIMSC
> + pub const INT_OE: u32 = 1 << 10;
> + pub const INT_BE: u32 = 1 << 9;
> + pub const INT_PE: u32 = 1 << 8;
> + pub const INT_FE: u32 = 1 << 7;
> + pub const INT_RT: u32 = 1 << 6;
> + pub const INT_TX: u32 = 1 << 5;
> + pub const INT_RX: u32 = 1 << 4;
> + pub const INT_DSR: u32 = 1 << 3;
> + pub const INT_DCD: u32 = 1 << 2;
> + pub const INT_CTS: u32 = 1 << 1;
> + pub const INT_RI: u32 = 1 << 0;
> + pub const INT_E: u32 = INT_OE | INT_BE | INT_PE | INT_FE;
> + pub const INT_MS: u32 = INT_RI | INT_DSR | INT_DCD | INT_CTS;
> +
> + #[repr(u32)]
> + pub enum Interrupt {
> + OE = 1 << 10,
> + BE = 1 << 9,
> + PE = 1 << 8,
> + FE = 1 << 7,
> + RT = 1 << 6,
> + TX = 1 << 5,
> + RX = 1 << 4,
> + DSR = 1 << 3,
> + DCD = 1 << 2,
> + CTS = 1 << 1,
> + RI = 1 << 0,
> + }
> +
> + impl Interrupt {
> + pub const E: u32 = INT_OE | INT_BE | INT_PE | INT_FE;
> + pub const MS: u32 = INT_RI | INT_DSR | INT_DCD | INT_CTS;
> + }
> +}
> +
> +// TODO: You must disable the UART before any of the control registers are
> +// reprogrammed. When the UART is disabled in the middle of transmission or
> +// reception, it completes the current character before stopping
> diff --git a/rust/hw/char/pl011/src/memory_ops.rs
> b/rust/hw/char/pl011/src/memory_ops.rs
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a2552ba58ecf2b33a07f4cced5e7c5e3c3cdfcff
> --- /dev/null
> +++ b/rust/hw/char/pl011/src/memory_ops.rs
> @@ -0,0 +1,57 @@
> +// Copyright 2024, Linaro Limited
> +// Author(s): Manos Pitsidianakis <manos.pitsidiana...@linaro.org>
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +
> +use core::{mem::MaybeUninit, ptr::NonNull};
> +
> +use qemu_api::bindings::*;
> +
> +use crate::device::PL011State;
> +
> +pub static PL011_OPS: MemoryRegionOps = MemoryRegionOps {
> + read: Some(pl011_read),
> + write: Some(pl011_write),
> + read_with_attrs: None,
> + write_with_attrs: None,
> + endianness: device_endian_DEVICE_NATIVE_ENDIAN,
> + valid: unsafe {
> MaybeUninit::<MemoryRegionOps__bindgen_ty_1>::zeroed().assume_init() },
> + impl_: MemoryRegionOps__bindgen_ty_2 {
> + min_access_size: 4,
> + max_access_size: 4,
> + ..unsafe {
> MaybeUninit::<MemoryRegionOps__bindgen_ty_2>::zeroed().assume_init() }
> + },
> +};
> +
> +#[no_mangle]
> +unsafe extern "C" fn pl011_read(
> + opaque: *mut core::ffi::c_void,
> + addr: hwaddr,
> + size: core::ffi::c_uint,
> +) -> u64 {
> + assert!(!opaque.is_null());
> + let mut state = NonNull::new_unchecked(opaque.cast::<PL011State>());
> + let val = state.as_mut().read(addr, size);
> + match val {
> + std::ops::ControlFlow::Break(val) => val,
> + std::ops::ControlFlow::Continue(val) => {
> + // SAFETY: self.char_backend is a valid CharBackend instance
> after it's been
> + // initialized in realize().
> + let cb_ptr =
> core::ptr::addr_of_mut!(state.as_mut().char_backend);
> + unsafe { qemu_chr_fe_accept_input(cb_ptr) };
> +
> + val
> + }
> + }
> +}
> +
> +#[no_mangle]
> +unsafe extern "C" fn pl011_write(
> + opaque: *mut core::ffi::c_void,
> + addr: hwaddr,
> + data: u64,
> + _size: core::ffi::c_uint,
> +) {
> + assert!(!opaque.is_null());
> + let mut state = NonNull::new_unchecked(opaque.cast::<PL011State>());
> + state.as_mut().write(addr, data)
> +}
> diff --git a/rust/hw/meson.build b/rust/hw/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..860196645e719624d2e2e6bc301b62b81ab2e19b
> --- /dev/null
> +++ b/rust/hw/meson.build
> @@ -0,0 +1 @@
> +subdir('char')
> diff --git a/rust/meson.build b/rust/meson.build
> index
> 7a32b1b195083571931ad589965c10ddaf6383b1..def77389cddc52f5d4503840e9bdfb1207586fa2
> 100644
> --- a/rust/meson.build
> +++ b/rust/meson.build
> @@ -1,2 +1,4 @@
> subdir('qemu-api-macros')
> subdir('qemu-api')
> +
> +subdir('hw')
> diff --git a/scripts/archive-source.sh b/scripts/archive-source.sh
> index
> 65af8063e4bddc89ea4bdf05716ebc9ed108e7fb..8b06c162307ec89739775cf6b8c15f9734367dd3
> 100755
> --- a/scripts/archive-source.sh
> +++ b/scripts/archive-source.sh
> @@ -26,7 +26,10 @@ sub_file="${sub_tdir}/submodule.tar"
> # independent of what the developer currently has initialized
> # in their checkout, because the build environment is completely
> # different to the host OS.
> -subprojects="keycodemapdb libvfio-user berkeley-softfloat-3
> berkeley-testfloat-3"
> +subprojects="keycodemapdb libvfio-user berkeley-softfloat-3
> + berkeley-testfloat-3 arbitrary-int-1.2.7 bilge-0.2.0 bilge-impl-0.2.0
> + either-1.12.0 itertools-0.11.0 proc-macro2-1.0.84 proc-macro-error-1.0.4
> + proc-macro-error-attr-1.0.4 quote-1.0.36 syn-2.0.66 unicode-ident-1.0.12"
> sub_deinit=""
>
> function cleanup() {
> diff --git a/scripts/make-release b/scripts/make-release
> index
> 6e0433de24dc8a37cefae6d828a2958309bbf1c1..841404274b066cc26c90656150ab01fa46cbd219
> 100755
> --- a/scripts/make-release
> +++ b/scripts/make-release
> @@ -17,7 +17,10 @@ if [ $# -ne 2 ]; then
> fi
>
> # Only include wraps that are invoked with subproject()
> -SUBPROJECTS="libvfio-user keycodemapdb berkeley-softfloat-3
> berkeley-testfloat-3"
> +SUBPROJECTS="libvfio-user keycodemapdb berkeley-softfloat-3
> berkeley-testfloat-3
> + arbitrary-int-1.2.7 bilge-0.2.0 bilge-impl-0.2.0 either-1.12.0
> itertools-0.11.0
> + proc-macro2-1.0.84 proc-macro-error-1.0.4 proc-macro-error-attr-1.0.4
> + quote-1.0.36 syn-2.0.66 unicode-ident-1.0.12"
>
> src="$1"
> version="$2"
> diff --git a/scripts/rust/rust_root_crate.sh b/scripts/rust/rust_root_crate.sh
> new file mode 100755
> index
> 0000000000000000000000000000000000000000..975bddf7f1a4c6ca7770f800bdc894cdff1f3ab1
> --- /dev/null
> +++ b/scripts/rust/rust_root_crate.sh
> @@ -0,0 +1,13 @@
> +#!/bin/sh
> +
> +set -eu
> +
> +cat <<EOF
> +// @generated
> +// This file is autogenerated by scripts/rust_root_crate.sh
> +
> +EOF
> +
> +for crate in $*; do
> + echo "extern crate $crate;"
> +done
> diff --git a/subprojects/.gitignore b/subprojects/.gitignore
> index
> adca0266be69181151e77639096380b3aba4abcf..50f173f90dbe5dde1162cfe96636f63637574c74
> 100644
> --- a/subprojects/.gitignore
> +++ b/subprojects/.gitignore
> @@ -6,3 +6,14 @@
> /keycodemapdb
> /libvfio-user
> /slirp
> +/arbitrary-int-1.2.7
> +/bilge-0.2.0
> +/bilge-impl-0.2.0
> +/either-1.12.0
> +/itertools-0.11.0
> +/proc-macro-error-1.0.4
> +/proc-macro-error-attr-1.0.4
> +/proc-macro2-1.0.84
> +/quote-1.0.36
> +/syn-2.0.66
> +/unicode-ident-1.0.12
> diff --git a/subprojects/arbitrary-int-1-rs.wrap
> b/subprojects/arbitrary-int-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..e580538a8776001147bfc5c5c73df2bfccac6347
> --- /dev/null
> +++ b/subprojects/arbitrary-int-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = arbitrary-int-1.2.7
> +source_url = https://crates.io/api/v1/crates/arbitrary-int/1.2.7/download
> +source_filename = arbitrary-int-1.2.7.tar.gz
> +source_hash =
> c84fc003e338a6f69fbd4f7fe9f92b535ff13e9af8997f3b14b6ddff8b1df46d
> +#method = cargo
> +patch_directory = arbitrary-int-1-rs
> diff --git a/subprojects/bilge-0.2-rs.wrap b/subprojects/bilge-0.2-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..7a4339d29896922c392e2e1952e02a1ee82b1874
> --- /dev/null
> +++ b/subprojects/bilge-0.2-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = bilge-0.2.0
> +source_url = https://crates.io/api/v1/crates/bilge/0.2.0/download
> +source_filename = bilge-0.2.0.tar.gz
> +source_hash =
> dc707ed8ebf81de5cd6c7f48f54b4c8621760926cdf35a57000747c512e67b57
> +#method = cargo
> +patch_directory = bilge-0.2-rs
> diff --git a/subprojects/bilge-impl-0.2-rs.wrap
> b/subprojects/bilge-impl-0.2-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..eefb10c36c24007d48833748cf200d67b6ff7ee7
> --- /dev/null
> +++ b/subprojects/bilge-impl-0.2-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = bilge-impl-0.2.0
> +source_url = https://crates.io/api/v1/crates/bilge-impl/0.2.0/download
> +source_filename = bilge-impl-0.2.0.tar.gz
> +source_hash =
> feb11e002038ad243af39c2068c8a72bcf147acf05025dcdb916fcc000adb2d8
> +#method = cargo
> +patch_directory = bilge-impl-0.2-rs
> diff --git a/subprojects/either-1-rs.wrap b/subprojects/either-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6046712036c8db1b142d083ae6f8a2d58d6203ab
> --- /dev/null
> +++ b/subprojects/either-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = either-1.12.0
> +source_url = https://crates.io/api/v1/crates/either/1.12.0/download
> +source_filename = either-1.12.0.tar.gz
> +source_hash =
> 3dca9240753cf90908d7e4aac30f630662b02aebaa1b58a3cadabdb23385b58b
> +#method = cargo
> +patch_directory = either-1-rs
> diff --git a/subprojects/itertools-0.11-rs.wrap
> b/subprojects/itertools-0.11-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..66b05252cd55ed3149b79b992a6d224e9789ba97
> --- /dev/null
> +++ b/subprojects/itertools-0.11-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = itertools-0.11.0
> +source_url = https://crates.io/api/v1/crates/itertools/0.11.0/download
> +source_filename = itertools-0.11.0.tar.gz
> +source_hash =
> b1c173a5686ce8bfa551b3563d0c2170bf24ca44da99c7ca4bfdab5418c3fe57
> +#method = cargo
> +patch_directory = itertools-0.11-rs
> diff --git a/subprojects/packagefiles/arbitrary-int-1-rs/meson.build
> b/subprojects/packagefiles/arbitrary-int-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..34a189cbaec77ba6631c6a8cb40d7eb3f32099ee
> --- /dev/null
> +++ b/subprojects/packagefiles/arbitrary-int-1-rs/meson.build
> @@ -0,0 +1,19 @@
> +project('arbitrary-int-1-rs', 'rust',
> + version: '1.2.7',
> + license: 'MIT',
> + default_options: [])
> +
> +_arbitrary_int_rs = static_library(
> + 'arbitrary_int',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + dependencies: [],
> +)
> +
> +arbitrary_int_dep = declare_dependency(
> + link_with: _arbitrary_int_rs,
> +)
> +
> +meson.override_dependency('arbitrary-int-1-rs', arbitrary_int_dep)
> diff --git a/subprojects/packagefiles/bilge-0.2-rs/meson.build
> b/subprojects/packagefiles/bilge-0.2-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a6ed4a8f0cde70be0bf75cd1ad40bc64e3a11a3a
> --- /dev/null
> +++ b/subprojects/packagefiles/bilge-0.2-rs/meson.build
> @@ -0,0 +1,29 @@
> +project(
> + 'bilge-0.2-rs',
> + 'rust',
> + version : '0.2.0',
> + license : 'MIT or Apache-2.0',
> +)
> +
> +subproject('arbitrary-int-1-rs', required: true)
> +subproject('bilge-impl-0.2-rs', required: true)
> +
> +arbitrary_int_dep = dependency('arbitrary-int-1-rs')
> +bilge_impl_dep = dependency('bilge-impl-0.2-rs')
> +
> +lib = static_library(
> + 'bilge',
> + 'src/lib.rs',
> + override_options : ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi : 'rust',
> + dependencies: [
> + arbitrary_int_dep,
> + bilge_impl_dep,
> + ],
> +)
> +
> +bilge_dep = declare_dependency(
> + link_with : [lib],
> +)
> +
> +meson.override_dependency('bilge-0.2-rs', bilge_dep)
> diff --git a/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
> b/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..80243c7024d898826cc3c98ba5b78ef286b79ce9
> --- /dev/null
> +++ b/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
> @@ -0,0 +1,45 @@
> +project('bilge-impl-0.2-rs', 'rust',
> + version: '0.2.0',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('itertools-0.11-rs', required: true)
> +subproject('proc-macro-error-attr-1-rs', required: true)
> +subproject('proc-macro-error-1-rs', required: true)
> +subproject('quote-1-rs', required: true)
> +subproject('syn-2-rs', required: true)
> +subproject('proc-macro2-1-rs', required: true)
> +
> +itertools_dep = dependency('itertools-0.11-rs', native: true)
> +proc_macro_error_attr_dep = dependency('proc-macro-error-attr-1-rs', native:
> true)
> +proc_macro_error_dep = dependency('proc-macro-error-1-rs', native: true)
> +quote_dep = dependency('quote-1-rs', native: true)
> +syn_dep = dependency('syn-2-rs', native: true)
> +proc_macro2_dep = dependency('proc-macro2-1-rs', native: true)
> +
> +rust = import('rust')
> +
> +_bilge_impl_rs = rust.proc_macro(
> + 'bilge_impl',
> + files('src/lib.rs'),
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_args: [
> + '--cfg', 'use_fallback',
> + '--cfg', 'feature="syn-error"',
> + '--cfg', 'feature="proc-macro"',
> + ],
> + dependencies: [
> + itertools_dep,
> + proc_macro_error_attr_dep,
> + proc_macro_error_dep,
> + quote_dep,
> + syn_dep,
> + proc_macro2_dep,
> + ],
> +)
> +
> +bilge_impl_dep = declare_dependency(
> + link_with: _bilge_impl_rs,
> +)
> +
> +meson.override_dependency('bilge-impl-0.2-rs', bilge_impl_dep)
> diff --git a/subprojects/packagefiles/either-1-rs/meson.build
> b/subprojects/packagefiles/either-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a5842eb3a6a63cf94883663758ca5eb11225ad58
> --- /dev/null
> +++ b/subprojects/packagefiles/either-1-rs/meson.build
> @@ -0,0 +1,24 @@
> +project('either-1-rs', 'rust',
> + version: '1.12.0',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +_either_rs = static_library(
> + 'either',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2018', 'build.rust_std=2018'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'feature="use_std"',
> + '--cfg', 'feature="use_alloc"',
> + ],
> + dependencies: [],
> + native: true,
> +)
> +
> +either_dep = declare_dependency(
> + link_with: _either_rs,
> +)
> +
> +meson.override_dependency('either-1-rs', either_dep, native: true)
> diff --git a/subprojects/packagefiles/itertools-0.11-rs/meson.build
> b/subprojects/packagefiles/itertools-0.11-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..13d2d27019d215fb793c457e494be7387a7ef455
> --- /dev/null
> +++ b/subprojects/packagefiles/itertools-0.11-rs/meson.build
> @@ -0,0 +1,30 @@
> +project('itertools-0.11-rs', 'rust',
> + version: '0.11.0',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('either-1-rs', required: true)
> +
> +either_dep = dependency('either-1-rs', native: true)
> +
> +_itertools_rs = static_library(
> + 'itertools',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2018', 'build.rust_std=2018'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'feature="use_std"',
> + '--cfg', 'feature="use_alloc"',
> + ],
> + dependencies: [
> + either_dep,
> + ],
> + native: true,
> +)
> +
> +itertools_dep = declare_dependency(
> + link_with: _itertools_rs,
> +)
> +
> +meson.override_dependency('itertools-0.11-rs', itertools_dep, native: true)
> diff --git a/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
> b/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..38ea7b89d39d3f131959f00665b51a49d5bc95e5
> --- /dev/null
> +++ b/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
> @@ -0,0 +1,40 @@
> +project('proc-macro-error-1-rs', 'rust',
> + version: '1.0.4',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('proc-macro-error-attr-1-rs', required: true)
> +subproject('quote-1-rs', required: true)
> +subproject('syn-2-rs', required: true)
> +subproject('proc-macro2-1-rs', required: true)
> +
> +proc_macro_error_attr_dep = dependency('proc-macro-error-attr-1-rs', native:
> true)
> +proc_macro2_dep = dependency('proc-macro2-1-rs', native: true)
> +quote_dep = dependency('quote-1-rs', native: true)
> +syn_dep = dependency('syn-2-rs', native: true)
> +
> +_proc_macro_error_rs = static_library(
> + 'proc_macro_error',
> + files('src/lib.rs'),
> + override_options: ['rust_std=2018', 'build.rust_std=2018'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'use_fallback',
> + '--cfg', 'feature="syn-error"',
> + '--cfg', 'feature="proc-macro"',
> + '-A', 'non_fmt_panics'
> + ],
> + dependencies: [
> + proc_macro_error_attr_dep,
> + proc_macro2_dep,
> + quote_dep,
> + syn_dep,
> + ],
> + native: true,
> +)
> +
> +proc_macro_error_dep = declare_dependency(
> + link_with: _proc_macro_error_rs,
> +)
> +
> +meson.override_dependency('proc-macro-error-1-rs', proc_macro_error_dep,
> native: true)
> diff --git a/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
> b/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d900c54cfd1ad6c8c415438c2e9dd51695c82150
> --- /dev/null
> +++ b/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
> @@ -0,0 +1,32 @@
> +project('proc-macro-error-attr-1-rs', 'rust',
> + version: '1.12.0',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('proc-macro2-1-rs', required: true)
> +subproject('quote-1-rs', required: true)
> +
> +proc_macro2_dep = dependency('proc-macro2-1-rs', native: true)
> +quote_dep = dependency('quote-1-rs', native: true)
> +
> +rust = import('rust')
> +_proc_macro_error_attr_rs = rust.proc_macro(
> + 'proc_macro_error_attr',
> + files('src/lib.rs'),
> + override_options: ['rust_std=2018', 'build.rust_std=2018'],
> + rust_args: [
> + '--cfg', 'use_fallback',
> + '--cfg', 'feature="syn-error"',
> + '--cfg', 'feature="proc-macro"'
> + ],
> + dependencies: [
> + proc_macro2_dep,
> + quote_dep,
> + ],
> +)
> +
> +proc_macro_error_attr_dep = declare_dependency(
> + link_with: _proc_macro_error_attr_rs,
> +)
> +
> +meson.override_dependency('proc-macro-error-attr-1-rs',
> proc_macro_error_attr_dep, native: true)
> diff --git a/subprojects/packagefiles/proc-macro2-1-rs/meson.build
> b/subprojects/packagefiles/proc-macro2-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..818ec59336b81ac7dd76a2317357c7b276cf490b
> --- /dev/null
> +++ b/subprojects/packagefiles/proc-macro2-1-rs/meson.build
> @@ -0,0 +1,31 @@
> +project('proc-macro2-1-rs', 'rust',
> + version: '1.0.84',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('unicode-ident-1-rs', required: true)
> +
> +unicode_ident_dep = dependency('unicode-ident-1-rs', native: true)
> +
> +_proc_macro2_rs = static_library(
> + 'proc_macro2',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'feature="proc-macro"',
> + '--cfg', 'span_locations',
> + '--cfg', 'wrap_proc_macro',
> + ],
> + dependencies: [
> + unicode_ident_dep,
> + ],
> + native: true,
> +)
> +
> +proc_macro2_dep = declare_dependency(
> + link_with: _proc_macro2_rs,
> +)
> +
> +meson.override_dependency('proc-macro2-1-rs', proc_macro2_dep, native: true)
> diff --git a/subprojects/packagefiles/quote-1-rs/meson.build
> b/subprojects/packagefiles/quote-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d36609bd3c8aa7df95eb292661dd293fbe7320b0
> --- /dev/null
> +++ b/subprojects/packagefiles/quote-1-rs/meson.build
> @@ -0,0 +1,29 @@
> +project('quote-1-rs', 'rust',
> + version: '1.12.0',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('proc-macro2-1-rs', required: true)
> +
> +proc_macro2_dep = dependency('proc-macro2-1-rs', native: true)
> +
> +_quote_rs = static_library(
> + 'quote',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'feature="proc-macro"',
> + ],
> + dependencies: [
> + proc_macro2_dep,
> + ],
> + native: true,
> +)
> +
> +quote_dep = declare_dependency(
> + link_with: _quote_rs,
> +)
> +
> +meson.override_dependency('quote-1-rs', quote_dep, native: true)
> diff --git a/subprojects/packagefiles/syn-2-rs/meson.build
> b/subprojects/packagefiles/syn-2-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a53335f3092e06723039513a1bf5a0d35b4afcd7
> --- /dev/null
> +++ b/subprojects/packagefiles/syn-2-rs/meson.build
> @@ -0,0 +1,40 @@
> +project('syn-2-rs', 'rust',
> + version: '2.0.66',
> + license: 'MIT OR Apache-2.0',
> + default_options: [])
> +
> +subproject('proc-macro2-1-rs', required: true)
> +subproject('quote-1-rs', required: true)
> +subproject('unicode-ident-1-rs', required: true)
> +
> +proc_macro2_dep = dependency('proc-macro2-1-rs', native: true)
> +quote_dep = dependency('quote-1-rs', native: true)
> +unicode_ident_dep = dependency('unicode-ident-1-rs', native: true)
> +
> +_syn_rs = static_library(
> + 'syn',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + rust_args: [
> + '--cfg', 'feature="full"',
> + '--cfg', 'feature="derive"',
> + '--cfg', 'feature="parsing"',
> + '--cfg', 'feature="printing"',
> + '--cfg', 'feature="clone-impls"',
> + '--cfg', 'feature="proc-macro"',
> + ],
> + dependencies: [
> + quote_dep,
> + proc_macro2_dep,
> + unicode_ident_dep,
> + ],
> + native: true,
> +)
> +
> +syn_dep = declare_dependency(
> + link_with: _syn_rs,
> +)
> +
> +meson.override_dependency('syn-2-rs', syn_dep, native: true)
> diff --git a/subprojects/packagefiles/unicode-ident-1-rs/meson.build
> b/subprojects/packagefiles/unicode-ident-1-rs/meson.build
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..54f2376854504236689604f8ab08d351e4cceae9
> --- /dev/null
> +++ b/subprojects/packagefiles/unicode-ident-1-rs/meson.build
> @@ -0,0 +1,20 @@
> +project('unicode-ident-1-rs', 'rust',
> + version: '1.0.12',
> + license: '(MIT OR Apache-2.0) AND Unicode-DFS-2016',
> + default_options: [])
> +
> +_unicode_ident_rs = static_library(
> + 'unicode_ident',
> + files('src/lib.rs'),
> + gnu_symbol_visibility: 'hidden',
> + override_options: ['rust_std=2021', 'build.rust_std=2021'],
> + rust_abi: 'rust',
> + dependencies: [],
> + native: true,
> +)
> +
> +unicode_ident_dep = declare_dependency(
> + link_with: _unicode_ident_rs,
> +)
> +
> +meson.override_dependency('unicode-ident-1-rs', unicode_ident_dep, native:
> true)
> diff --git a/subprojects/proc-macro-error-1-rs.wrap
> b/subprojects/proc-macro-error-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..b7db03b06a019562b2ad77bb252d50b7e83c0b33
> --- /dev/null
> +++ b/subprojects/proc-macro-error-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = proc-macro-error-1.0.4
> +source_url = https://crates.io/api/v1/crates/proc-macro-error/1.0.4/download
> +source_filename = proc-macro-error-1.0.4.tar.gz
> +source_hash =
> da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c
> +#method = cargo
> +patch_directory = proc-macro-error-1-rs
> diff --git a/subprojects/proc-macro-error-attr-1-rs.wrap
> b/subprojects/proc-macro-error-attr-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d13d8a239ac259132cd905bc512e9024b2f30fb8
> --- /dev/null
> +++ b/subprojects/proc-macro-error-attr-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = proc-macro-error-attr-1.0.4
> +source_url =
> https://crates.io/api/v1/crates/proc-macro-error-attr/1.0.4/download
> +source_filename = proc-macro-error-attr-1.0.4.tar.gz
> +source_hash =
> a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869
> +#method = cargo
> +patch_directory = proc-macro-error-attr-1-rs
> diff --git a/subprojects/proc-macro2-1-rs.wrap
> b/subprojects/proc-macro2-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..7053e2c013c6d6be9efa5dd99cb43b5906a772d3
> --- /dev/null
> +++ b/subprojects/proc-macro2-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = proc-macro2-1.0.84
> +source_url = https://crates.io/api/v1/crates/proc-macro2/1.0.84/download
> +source_filename = proc-macro2-1.0.84.0.tar.gz
> +source_hash =
> ec96c6a92621310b51366f1e28d05ef11489516e93be030060e5fc12024a49d6
> +#method = cargo
> +patch_directory = proc-macro2-1-rs
> diff --git a/subprojects/quote-1-rs.wrap b/subprojects/quote-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6e7ea69049f83d51190cef867cec1adc202f77db
> --- /dev/null
> +++ b/subprojects/quote-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = quote-1.0.36
> +source_url = https://crates.io/api/v1/crates/quote/1.0.36/download
> +source_filename = quote-1.0.36.0.tar.gz
> +source_hash =
> 0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7
> +#method = cargo
> +patch_directory = quote-1-rs
> diff --git a/subprojects/syn-2-rs.wrap b/subprojects/syn-2-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..13ffdac3c3b1bbed2f568a2638c3dfe20dbc0748
> --- /dev/null
> +++ b/subprojects/syn-2-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = syn-2.0.66
> +source_url = https://crates.io/api/v1/crates/syn/2.0.66/download
> +source_filename = syn-2.0.66.0.tar.gz
> +source_hash =
> c42f3f41a2de00b01c0aaad383c5a45241efc8b2d1eda5661812fda5f3cdcff5
> +#method = cargo
> +patch_directory = syn-2-rs
> diff --git a/subprojects/unicode-ident-1-rs.wrap
> b/subprojects/unicode-ident-1-rs.wrap
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..4609f96ed970a64bf0f9d06b29bcc9985a907c3d
> --- /dev/null
> +++ b/subprojects/unicode-ident-1-rs.wrap
> @@ -0,0 +1,7 @@
> +[wrap-file]
> +directory = unicode-ident-1.0.12
> +source_url = https://crates.io/api/v1/crates/unicode-ident/1.0.12/download
> +source_filename = unicode-ident-1.0.12.tar.gz
> +source_hash =
> 3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b
> +#method = cargo
> +patch_directory = unicode-ident-1-rs
>
> --
> 2.45.2
>
