From nobody Thu Apr 2 12:17:47 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 151CA386C3E; Sun, 29 Mar 2026 18:02:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774807361; cv=none; b=Cw9mozf8Bn30Q40vZEH1Zy2/Lu1DcF01wV7ts0Rpb5dc5fi6cacu3B2kZEcp/B5OkKv0YFY2YTKlXGtrdnH+eA2JpPxquz9g6QBWsTe43FCp7rS84jq2WXduvQnUGMDtj4NMUMeC5tn94YB4VvXBo3WTQUEIMpnBHqbbrQq0pCA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774807361; c=relaxed/simple; bh=ubfJ4y7S2sHEWcdmejHmgeyKajPKdWW7xq2MuYD5xmc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=V59whP5wAPkKQD4rRfi1OTcMTJzoJqzuibgZs0KxSKQRi+8QY1tY89okEPbLE+wdWG3a6wAQOuHLYBWBBLYRqhyHyvt5rqD9CbI+zViVLsDQckd1+7X2Bnxuk/Ckq7MNRMcalXdcOdPnSBka4YMjVY+Al09DfBUSWmnOQ8Vr52s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oqu+8890; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="oqu+8890" Received: by smtp.kernel.org (Postfix) with ESMTPS id A6278C2BCB4; Sun, 29 Mar 2026 18:02:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774807360; bh=ubfJ4y7S2sHEWcdmejHmgeyKajPKdWW7xq2MuYD5xmc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=oqu+8890nctB4Y4dzW3pJSbcCjWW6FgCb1ltYP2zoI9rGLqQQlCH6XH4gyCscB09d s+lKoXXEzX3TJeeysKzZoT38GeQbWvX6o9VlfwC+dr6ZKzbJSoJ9ZImnAXWw5PJkFV sheQAculz9pNA17Yl/GxRxPtCXC8JfesyKFtwJtiKIm+t6nZlLyA+4yWnUPNLOlpNl eD87qBa6eJ4lHUnhCuTYWizLKevzQPifkxCW2BrVc/CTU0YHz0jtqVn+eCRnZUFRxj Z7DKfDx0sG+SK93GgJcgYajw3mN2dWbgFXi2ov0Wiw/gilE0+XtIJDDztRn3h6baHd qnNNTf8xY6TPA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A3B4FC72A0; Sun, 29 Mar 2026 18:02:40 +0000 (UTC) From: Markus Probst via B4 Relay Date: Sun, 29 Mar 2026 20:02:18 +0200 Subject: [PATCH v5 4/4] platform: Add initial synology microp driver Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260329-synology_microp_initial-v5-4-27cb80bdf591@posteo.de> References: <20260329-synology_microp_initial-v5-0-27cb80bdf591@posteo.de> In-Reply-To: <20260329-synology_microp_initial-v5-0-27cb80bdf591@posteo.de> To: Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Bryan O'Donoghue , Lee Jones , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Miguel Ojeda , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Greg Kroah-Hartman , "Rafael J. Wysocki" , Len Brown , Saravana Kannan Cc: platform-driver-x86@vger.kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-acpi@vger.kernel.org, Markus Probst X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=20314; i=markus.probst@posteo.de; h=from:subject:message-id; bh=yrzjZbZgwaJ2bp4M2Fjq+W1D7x0HPjApLfr85u17qBg=; b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBpyWk9BO5iJDlwUL2Yn3JUsufOSJeCw/uvs9A1D /bhkBKvZ0WJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCaclpPRsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMSwyLDIACgkQNHYf+OetQ9JgKhAAkHvqRfb6r3jvhGFlV89rvBLDCjVTL/l J8KINrZLjzuMxj+c0ZoZMcWR0i9Nkx2EtjyaYnSEqJabbpoE2FyzRRsV/2T6gyCMaBz2/AwAL/W rbovlhFR1jScibAQTji6ekDceeAJKNxhj7/QrADbQsoPYEcEk74v1naMEmwNn+DlIh+xNqJd/pm C+0Oee00GbiO7l+svtQ4tI9/LV7hiQL2q3ABMAlobIr96K9oIZfNlUZGzXHJUmNajgiGcQ2RyFX UdzjSYuTHy4anAy8qFWIJHfdQfyUbknC74EWgkCzfDTab3Ep1uRQ4Vps0+ckSK5IaB4EHomlmtm XUSdcwYhsAJKOq4o+cHk4EynK1DbwWyfO6UFUm9EufgFBIqOF/xB9BvL/KsGEbAjrfZZHEAHxv/ vxD70rSWwP1YEgQZKusOnj/RJDmKJvfHZ7FDpwyGkgxniQxOqI9iSMK/xXVjF6SYaw+P91YsffT qBqTiTTHQUaCcn9Kyu4Ck04W6s4NmdNVyaQGopx/0caiFvTK3RP24BgrJ5985lFbon74gqcUMMV xabGTwUYiOu35KKN0gXJdPy41astzLBBkS0UPN0za/MPtp9ZqBaADa9eXTDpODPAoGrapFerW8C VBNj5z/eGfa5w5xSLyIVj+FcKHQDW63osYPmBxR/i7wux87YixX0= X-Developer-Key: i=markus.probst@posteo.de; a=openpgp; fpr=827418C4F4AC58E77230C47334761FF8E7AD43D2 X-Endpoint-Received: by B4 Relay for markus.probst@posteo.de/default with auth_id=680 X-Original-From: Markus Probst Reply-To: markus.probst@posteo.de From: Markus Probst Add a initial synology microp driver, written in Rust. The driver targets a microcontroller found in Synology NAS devices. It currently only supports controlling of the power led, status led, alert led and usb led. Other components such as fan control or handling on-device buttons will be added once the required rust abstractions are there. This driver can be used both on arm and x86, thus it goes into the root directory of drivers/platform. Tested successfully on a Synology DS923+. Signed-off-by: Markus Probst --- MAINTAINERS | 6 + drivers/platform/Kconfig | 2 + drivers/platform/Makefile | 1 + drivers/platform/synology_microp/Kconfig | 13 + drivers/platform/synology_microp/Makefile | 3 + drivers/platform/synology_microp/TODO | 7 + drivers/platform/synology_microp/command.rs | 55 ++++ drivers/platform/synology_microp/led.rs | 276 +++++++++++++++++= ++++ drivers/platform/synology_microp/model.rs | 171 +++++++++++++ .../platform/synology_microp/synology_microp.rs | 54 ++++ 10 files changed, 588 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 83b5a45de729..24cc4f63cce6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -25544,6 +25544,12 @@ F: drivers/dma-buf/sync_* F: include/linux/sync_file.h F: include/uapi/linux/sync_file.h =20 +SYNOLOGY MICROP DRIVER +M: Markus Probst +S: Maintained +F: Documentation/devicetree/bindings/embedded-controller/synology,ds923p-m= icrop.yaml +F: drivers/platform/synology_microp/ + SYNOPSYS ARC ARCHITECTURE M: Vineet Gupta L: linux-snps-arc@lists.infradead.org diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig index 312788f249c9..996050566a4a 100644 --- a/drivers/platform/Kconfig +++ b/drivers/platform/Kconfig @@ -22,3 +22,5 @@ source "drivers/platform/arm64/Kconfig" source "drivers/platform/raspberrypi/Kconfig" =20 source "drivers/platform/wmi/Kconfig" + +source "drivers/platform/synology_microp/Kconfig" diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile index fa322e7f8716..2381872e9133 100644 --- a/drivers/platform/Makefile +++ b/drivers/platform/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_SURFACE_PLATFORMS) +=3D surface/ obj-$(CONFIG_ARM64_PLATFORM_DEVICES) +=3D arm64/ obj-$(CONFIG_BCM2835_VCHIQ) +=3D raspberrypi/ obj-$(CONFIG_ACPI_WMI) +=3D wmi/ +obj-$(CONFIG_SYNOLOGY_MICROP) +=3D synology_microp/ diff --git a/drivers/platform/synology_microp/Kconfig b/drivers/platform/sy= nology_microp/Kconfig new file mode 100644 index 000000000000..0c145a5b7174 --- /dev/null +++ b/drivers/platform/synology_microp/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config SYNOLOGY_MICROP + tristate "Synology Microp driver" + depends on LEDS_CLASS && LEDS_CLASS_MULTICOLOR + depends on RUST_SERIAL_DEV_BUS_ABSTRACTIONS + help + Enable support for the MCU found in Synology NAS devices. + + This is needed to properly shutdown and reboot the device, as well as + additional functionality like fan and LED control. + + This driver is work in progress and may not be fully functional. diff --git a/drivers/platform/synology_microp/Makefile b/drivers/platform/s= ynology_microp/Makefile new file mode 100644 index 000000000000..63585ccf76e4 --- /dev/null +++ b/drivers/platform/synology_microp/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-y +=3D synology_microp.o diff --git a/drivers/platform/synology_microp/TODO b/drivers/platform/synol= ogy_microp/TODO new file mode 100644 index 000000000000..1961a33115db --- /dev/null +++ b/drivers/platform/synology_microp/TODO @@ -0,0 +1,7 @@ +TODO: +- add missing components: + - handle on-device buttons (Power, Factory reset, "USB Copy") + - handle fan failure + - beeper + - fan speed control + - correctly perform device power-off and restart on Synology devices diff --git a/drivers/platform/synology_microp/command.rs b/drivers/platform= /synology_microp/command.rs new file mode 100644 index 000000000000..5b3dd715afac --- /dev/null +++ b/drivers/platform/synology_microp/command.rs @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0 + +use kernel::{ + device::Bound, + error::Result, + serdev, // +}; + +use crate::led; + +#[derive(Copy, Clone)] +#[expect( + clippy::enum_variant_names, + reason =3D "future variants will not end with Led" +)] +pub(crate) enum Command { + PowerLed(led::State), + StatusLed(led::StatusLedColor, led::State), + AlertLed(led::State), + UsbLed(led::State), + EsataLed(led::State), +} + +impl Command { + pub(crate) fn write(self, dev: &serdev::Device) -> Result { + dev.write_all( + match self { + Self::PowerLed(led::State::On) =3D> &[0x34], + Self::PowerLed(led::State::Blink) =3D> &[0x35], + Self::PowerLed(led::State::Off) =3D> &[0x36], + + Self::StatusLed(_, led::State::Off) =3D> &[0x37], + Self::StatusLed(led::StatusLedColor::Green, led::State::On= ) =3D> &[0x38], + Self::StatusLed(led::StatusLedColor::Green, led::State::Bl= ink) =3D> &[0x39], + Self::StatusLed(led::StatusLedColor::Orange, led::State::O= n) =3D> &[0x3A], + Self::StatusLed(led::StatusLedColor::Orange, led::State::B= link) =3D> &[0x3B], + + Self::AlertLed(led::State::On) =3D> &[0x4C, 0x41, 0x31], + Self::AlertLed(led::State::Blink) =3D> &[0x4C, 0x41, 0x32], + Self::AlertLed(led::State::Off) =3D> &[0x4C, 0x41, 0x33], + + Self::UsbLed(led::State::On) =3D> &[0x40], + Self::UsbLed(led::State::Blink) =3D> &[0x41], + Self::UsbLed(led::State::Off) =3D> &[0x42], + + Self::EsataLed(led::State::On) =3D> &[0x4C, 0x45, 0x31], + Self::EsataLed(led::State::Blink) =3D> &[0x4C, 0x45, 0x32], + Self::EsataLed(led::State::Off) =3D> &[0x4C, 0x45, 0x33], + }, + serdev::Timeout::Max, + )?; + dev.wait_until_sent(serdev::Timeout::Max); + Ok(()) + } +} diff --git a/drivers/platform/synology_microp/led.rs b/drivers/platform/syn= ology_microp/led.rs new file mode 100644 index 000000000000..a78a95588456 --- /dev/null +++ b/drivers/platform/synology_microp/led.rs @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: GPL-2.0 + +use kernel::{ + device::Bound, + devres::{ + self, + Devres, // + }, + led::{ + self, + LedOps, + MultiColorSubLed, // + }, + new_mutex, + prelude::*, + serdev, + str::CString, + sync::Mutex, // +}; +use pin_init::pin_init_scope; + +use crate::{ + command::Command, + model::Model, // +}; + +#[pin_data] +pub(crate) struct Data { + #[pin] + status: Devres>, + power_name: CString, + #[pin] + power: Devres>, +} + +impl Data { + pub(super) fn register<'a>( + dev: &'a serdev::Device, + model: &'a Model, + ) -> impl PinInit + 'a { + pin_init_scope(move || { + if let Some(color) =3D model.led_alert { + let name =3D CString::try_from_fmt(fmt!("{}:alarm", color.= as_c_str().to_str()?))?; + devres::register( + dev.as_ref(), + led::DeviceBuilder::new().color(color).name(&name).bui= ld( + dev, + try_pin_init!(LedHandler { + blink <- new_mutex!(false), + command: Command::AlertLed, + }), + ), + GFP_KERNEL, + )?; + } + + if model.led_usb_copy { + devres::register( + dev.as_ref(), + led::DeviceBuilder::new() + .color(led::Color::Green) + .name(c"green:usb") + .build( + dev, + try_pin_init!(LedHandler { + blink <- new_mutex!(false), + command: Command::UsbLed, + }), + ), + GFP_KERNEL, + )?; + } + + if model.led_esata { + devres::register( + dev.as_ref(), + led::DeviceBuilder::new() + .color(led::Color::Green) + .name(c"green:esata") + .build( + dev, + try_pin_init!(LedHandler { + blink <- new_mutex!(false), + command: Command::EsataLed, + }), + ), + GFP_KERNEL, + )?; + } + + Ok(try_pin_init!(Self { + status <- led::DeviceBuilder::new() + .color(led::Color::Multi) + .name(c"multicolor:status") + .build_multicolor( + dev, + try_pin_init!(StatusLedHandler { + blink <- new_mutex!(false), + }), + StatusLedHandler::SUBLEDS, + ), + power_name: CString::try_from_fmt(fmt!( + "{}:power", + model.led_power.as_c_str().to_str()? + ))?, + power <- led::DeviceBuilder::new() + .color(model.led_power) + .name(power_name) + .build( + dev, + try_pin_init!(LedHandler { + blink <- new_mutex!(true), + command: Command::PowerLed, + }), + ), + })) + }) + } +} + +#[derive(Copy, Clone)] +pub(crate) enum StatusLedColor { + Green, + Orange, +} + +#[derive(Copy, Clone)] +pub(crate) enum State { + On, + Blink, + Off, +} + +#[pin_data] +struct LedHandler { + #[pin] + blink: Mutex, + command: fn(State) -> Command, +} + +#[vtable] +impl LedOps for LedHandler { + type Bus =3D serdev::Device; + type Mode =3D led::Normal; + const BLOCKING: bool =3D true; + const MAX_BRIGHTNESS: u32 =3D 1; + + fn brightness_set( + &self, + dev: &Self::Bus, + _classdev: &led::Device, + brightness: u32, + ) -> Result<()> { + let mut blink =3D self.blink.lock(); + (self.command)(if brightness =3D=3D 0 { + *blink =3D false; + State::Off + } else if *blink { + State::Blink + } else { + State::On + }) + .write(dev)?; + + Ok(()) + } + + fn blink_set( + &self, + dev: &Self::Bus, + _classdev: &led::Device, + delay_on: &mut usize, + delay_off: &mut usize, + ) -> Result<()> { + let mut blink =3D self.blink.lock(); + + (self.command)(if *delay_on =3D=3D 0 && *delay_off !=3D 0 { + State::Off + } else if *delay_on !=3D 0 && *delay_off =3D=3D 0 { + State::On + } else { + *blink =3D true; + *delay_on =3D 167; + *delay_off =3D 167; + + State::Blink + }) + .write(dev) + } +} + +#[pin_data] +struct StatusLedHandler { + #[pin] + blink: Mutex, +} + +impl StatusLedHandler { + const SUBLEDS: &[MultiColorSubLed] =3D &[ + MultiColorSubLed::new(led::Color::Green).initial_intensity(1), + MultiColorSubLed::new(led::Color::Orange), + ]; +} + +#[vtable] +impl LedOps for StatusLedHandler { + type Bus =3D serdev::Device; + type Mode =3D led::MultiColor; + const BLOCKING: bool =3D true; + const MAX_BRIGHTNESS: u32 =3D 1; + + fn brightness_set( + &self, + dev: &Self::Bus, + classdev: &led::MultiColorDevice, + brightness: u32, + ) -> Result<()> { + let mut blink =3D self.blink.lock(); + if brightness =3D=3D 0 { + *blink =3D false; + } + + let (color, subled_brightness) =3D if classdev.subleds()[1].intens= ity =3D=3D 0 { + (StatusLedColor::Green, classdev.subleds()[0].brightness) + } else { + (StatusLedColor::Orange, classdev.subleds()[1].brightness) + }; + + Command::StatusLed( + color, + if subled_brightness =3D=3D 0 { + State::Off + } else if *blink { + State::Blink + } else { + State::On + }, + ) + .write(dev) + } + + fn blink_set( + &self, + dev: &Self::Bus, + classdev: &led::MultiColorDevice, + delay_on: &mut usize, + delay_off: &mut usize, + ) -> Result<()> { + let mut blink =3D self.blink.lock(); + *blink =3D true; + + let (color, subled_intensity) =3D if classdev.subleds()[1].intensi= ty =3D=3D 0 { + (StatusLedColor::Green, classdev.subleds()[0].intensity) + } else { + (StatusLedColor::Orange, classdev.subleds()[1].intensity) + }; + Command::StatusLed( + color, + if *delay_on =3D=3D 0 && *delay_off !=3D 0 { + *blink =3D false; + State::Off + } else if subled_intensity =3D=3D 0 { + State::Off + } else if *delay_on !=3D 0 && *delay_off =3D=3D 0 { + *blink =3D false; + State::On + } else { + *delay_on =3D 167; + *delay_off =3D 167; + + State::Blink + }, + ) + .write(dev) + } +} diff --git a/drivers/platform/synology_microp/model.rs b/drivers/platform/s= ynology_microp/model.rs new file mode 100644 index 000000000000..b972aae2b805 --- /dev/null +++ b/drivers/platform/synology_microp/model.rs @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0 + +use kernel::{ + led::{ + self, + Color, // + }, + of::DeviceId, // +}; + +pub(crate) struct Architecture; + +impl Architecture { + const fn new() -> Self { + Self + } +} + +pub(crate) struct Model { + #[expect( + dead_code, + reason =3D "needed later for architecture specific properties, lik= e poweroff behaviour" + )] + pub(crate) arch: Architecture, + pub(crate) led_power: led::Color, + pub(crate) led_alert: Option, + pub(crate) led_usb_copy: bool, + pub(crate) led_esata: bool, +} + +impl Model { + const fn new(arch: Architecture) -> Self { + Self { + arch, + led_power: led::Color::Blue, + led_alert: None, + led_usb_copy: false, + led_esata: false, + } + } + + const fn led_power(self, color: led::Color) -> Self { + Self { + led_power: color, + ..self + } + } + + const fn led_alert(self, color: led::Color) -> Self { + Self { + led_alert: Some(color), + ..self + } + } + + const fn led_esata(self) -> Self { + Self { + led_esata: true, + ..self + } + } + + const fn led_usb_copy(self) -> Self { + Self { + led_usb_copy: true, + ..self + } + } +} + +macro_rules! models { + [ + $($arch:ident $(.$arch_func:ident( $($arch_arg:tt)* ))* + @ [ + $($model:ident $(.$func:ident( $($arg:tt)* ))*, )* + ], + )* + ] =3D> { + models![ + $( + { + Architecture::new() + $( + .$arch_func($($arch_arg)*) + )* + } + @ + [ + $( + $model $(.$func($($arg)*))*, + )* + ], + )* + ] + }; + [ + $($arch:block + @ [ + $($model:ident $(.$func:ident( $($arg:tt)* ))*, )* + ], + )* + ] =3D> { + [ + $( + $(( + DeviceId::new(::kernel::c_str!( + ::core::concat!( + "synology,", + ::core::stringify!($model), + "-microp", + ) + )), + Model::new($arch) + $( + .$func($($arg)*) + )* + ),)* + )* + ] + }; +} + +kernel::of_device_table!( + pub(crate) OF_TABLE, + MODULE_OF_TABLE, + Model, + models![ + apollolake @ [ + ds918p, + ], + evansport @ [ + ds214play, + ], + geminilakenk @ [ + ds225p.led_usb_copy(), + ds425p, + ], + pineview @ [ + ds710p.led_esata(), + ds1010p.led_alert(Color::Orange), + ], + r1000 @ [ + ds923p, + ds723p, + ds1522p, + rs422p.led_power(Color::Green), + ], + r1000nk @ [ + ds725p, + ], + rtd1296 @ [ + ds118, + ], + rtd1619b @ [ + ds124, + ds223.led_usb_copy(), + ds223j, + ], + v1000 @ [ + ds1823xsp, + rs822p.led_power(Color::Green), + rs1221p.led_power(Color::Green), + rs1221rpp.led_power(Color::Green), + ], + v1000nk @ [ + ds925p, + ds1525p, + ds1825p, + ], + ] +); diff --git a/drivers/platform/synology_microp/synology_microp.rs b/drivers/= platform/synology_microp/synology_microp.rs new file mode 100644 index 000000000000..51152cc14b1e --- /dev/null +++ b/drivers/platform/synology_microp/synology_microp.rs @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Synology Microp driver + +use kernel::{ + device, + of, + prelude::*, + serdev, // +}; +use pin_init::pin_init_scope; + +use crate::model::Model; + +pub(crate) mod command; +mod led; +mod model; + +kernel::module_serdev_device_driver! { + type: SynologyMicropDriver, + name: "synology_microp", + authors: ["Markus Probst "], + description: "Synology Microp driver", + license: "GPL v2", +} + +#[pin_data] +struct SynologyMicropDriver { + #[pin] + led: led::Data, +} + +#[vtable] +impl serdev::Driver for SynologyMicropDriver { + type IdInfo =3D Model; + const OF_ID_TABLE: Option> =3D Some(&model::= OF_TABLE); + + fn probe( + dev: &serdev::Device, + model: Option<&Model>, + ) -> impl PinInit { + pin_init_scope(move || { + let model =3D model.ok_or(EINVAL)?; + + dev.set_baudrate(9600).map_err(|_| EINVAL)?; + dev.set_flow_control(false); + dev.set_parity(serdev::Parity::None)?; + + Ok(try_pin_init!(Self { + led <- led::Data::register(dev, model), + })) + }) + } +} --=20 2.52.0