* [PATCH v11 0/2] Introduce Synology Microp driver
@ 2026-04-27 18:12 Markus Probst via B4 Relay
2026-04-27 18:12 ` [PATCH v11 1/2] dt-bindings: embedded-controller: Add synology microp devices Markus Probst via B4 Relay
2026-04-27 18:12 ` [PATCH v11 2/2] platform: Add initial synology microp driver Markus Probst via B4 Relay
0 siblings, 2 replies; 3+ messages in thread
From: Markus Probst via B4 Relay @ 2026-04-27 18:12 UTC (permalink / raw)
To: Hans de Goede, Ilpo Järvinen, Bryan O'Donoghue,
Lee Jones, Pavel Machek, Miguel Ojeda, Boqun Feng, Gary Guo,
Björn Roy Baron, Benno Lossin, Andreas Hindborg, Alice Ryhl,
Trevor Gross, Danilo Krummrich, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Greg Kroah-Hartman
Cc: platform-driver-x86, linux-leds, devicetree, linux-kernel,
rust-for-linux, Markus Probst, Krzysztof Kozlowski
Synology uses a microcontroller in their NAS devices connected to a
serial port to control certain LEDs, fan speeds, a beeper, to handle
proper shutdown and restart, buttons and fan failures.
This patch series depends on the rust led abstraction [1] and the rust
serdev abstraction [2].
This is only a initial version of the driver able to control LEDs.
The following rust abstractions would be required, to implement the
remaining features:
- hwmon (include/linux/hwmon.h)
- input (include/linux/input.h)
- sysoff handler (include/linux/reboot.h)
[1] https://lore.kernel.org/rust-for-linux/20260427-rust_leds-v14-0-4f4b17e5d516@posteo.de/
[2] https://lore.kernel.org/rust-for-linux/20260427-rust_serdev-v6-0-173798d5e1a3@posteo.de/
Signed-off-by: Markus Probst <markus.probst@posteo.de>
---
Changes in v11:
- rebased on top of 7.1-rc1
- add "synology" as devicename to led, like it is done in existing dts
files in the kernel
- fix color for led being orange instead of amber. I personally can't
clearly tell them apart, but apparently its amber.
- replaced MCU with EC in Kconfig help
- Link to v10: https://patch.msgid.link/20260424-synology_microp_initial-v10-0-e852d2f3eba1@posteo.de
Changes in v10:
- resolved issues reported by Sashiko Bot:
- removed unneeded include from device tree
- fix typo in of device table
- fix blink not set to false, if delay_off or delay_on is 0
- Link to v9: https://patch.msgid.link/20260423-synology_microp_initial-v9-0-4a8533f87e07@posteo.de
Changes in v9:
- separate fallback and front compatibles in dt schema
- remove front compatibles from of id table, if all functionality is
by covered by the fallback
- remove TODO file
- add platform-driver-x86@vger.kernel.org to Maintainers file entry
- use `Delta` type in `BLINK_DELAY` const
- Link to v8: https://patch.msgid.link/20260420-synology_microp_initial-v8-0-7946a9124491@posteo.de
Changes in v8:
- removed unnecessary Copy and Clone derive
- added `BLINK_DELAY` constant
- added compatible id fallbacks
- moved dt schema patch before the driver
- added ds411p
- Link to v7: https://lore.kernel.org/r/20260411-synology_microp_initial-v7-0-9a3a094e763a@posteo.de
Changes in v7:
- remove list of compatible ids from commit msg
- explain what makes the different models not compatible in the commit msg
- remove unnecessary examples
- Link to v6: https://lore.kernel.org/r/20260405-synology_microp_initial-v6-0-08fde474b6c9@posteo.de
Changes in v6:
- moved devicetree bindings patch at the end of the set
- remove several patches
- move of id table from model.rs to synology_microp.rs
- remove the model! macro
- use if blocks in devicetree schema to narrow down the
fan-failure-gpios property
- add multiple devicetree examples to test if blocks
- Link to v5: https://lore.kernel.org/r/20260329-synology_microp_initial-v5-0-27cb80bdf591@posteo.de
Changes in v5:
- add esata led support
- use different compatible for each model
- add visibility modifier to of_device_table macro
- fix match data missing when using PRP0001
- Link to v4: https://lore.kernel.org/r/20260320-synology_microp_initial-v4-0-0423ddb83ca4@posteo.de
Changes in v4:
- convert to monolithic driver and moved it into drivers/platform
- removed mfd rust abstraction
- moved dt-bindings to embedded-controller
- Link to v3: https://lore.kernel.org/r/20260313-synology_microp_initial-v3-0-ad6ac463a201@posteo.de
Changes in v3:
- remove `default n` from Kconfig entry, as n is the default already.
- select RUST_SERIAL_DEV_BUS_ABSTRACTIONS in Kconfig
- add mfd rust abstraction
- split core and led parts into their own driver. It should now be considered a
MFD device.
- split led part of dt binding into its own file
- Link to v2: https://lore.kernel.org/r/20260308-synology_microp_initial-v2-0-9389963f31c5@posteo.de
Changes in v2:
- fix missing tabs in MAINTAINERS file
- remove word binding from patch subject
- add missing signed-off-by
- add missing help entry in Kconfig
- add missing spdx license headers
- remove no-check{,-cpu}-fan properties from the dt-bindings and replace
them with the check_fan module parameter
- use patternProperties for leds in dt-bindings
- license dt-binding as GPL-2.0-only OR BSD-2-Clause
- move driver from staging tree into mfd tree and mark it as work in
progress inside Kconfig
- only register alert and usb led if fwnode is present
- Link to v1: https://lore.kernel.org/r/20260306-synology_microp_initial-v1-0-fcffede6448c@posteo.de
---
Markus Probst (2):
dt-bindings: embedded-controller: Add synology microp devices
platform: Add initial synology microp driver
.../synology,ds918p-microp.yaml | 100 +++++++
MAINTAINERS | 7 +
drivers/platform/Kconfig | 2 +
drivers/platform/Makefile | 1 +
drivers/platform/synology_microp/Kconfig | 13 +
drivers/platform/synology_microp/Makefile | 3 +
drivers/platform/synology_microp/command.rs | 54 ++++
drivers/platform/synology_microp/led.rs | 287 +++++++++++++++++++++
drivers/platform/synology_microp/model.rs | 49 ++++
.../platform/synology_microp/synology_microp.rs | 90 +++++++
10 files changed, 606 insertions(+)
---
base-commit: 5e9b7d093f3f77cb0af4409559e3d139babfb443
change-id: 20260306-synology_microp_initial-0f7dac7b7496
prerequisite-change-id: 20251217-rust_serdev-ee5481e9085c:v6
prerequisite-patch-id: 52b17274481cc770c257d8f95335293eca32a2c5
prerequisite-patch-id: 6ab09768759461c6bea5d4a0833d50e3e41067f1
prerequisite-patch-id: 8df2fcbdf925250fd8b768c48d4d4224a431c987
prerequisite-patch-id: d0686cf451ef899a06d468adfba51ccd84e6ff98
prerequisite-change-id: 20251114-rust_leds-a959f7c2f7f9:v14
prerequisite-patch-id: bffdc634baa213e70eacc27b52033b16bd7451c4
prerequisite-patch-id: b15ffa7d95d9260151bfb116b259c4473f721c82
prerequisite-patch-id: 144f13648788a554a03be98ee572e00bd985fa0f
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v11 1/2] dt-bindings: embedded-controller: Add synology microp devices
2026-04-27 18:12 [PATCH v11 0/2] Introduce Synology Microp driver Markus Probst via B4 Relay
@ 2026-04-27 18:12 ` Markus Probst via B4 Relay
2026-04-27 18:12 ` [PATCH v11 2/2] platform: Add initial synology microp driver Markus Probst via B4 Relay
1 sibling, 0 replies; 3+ messages in thread
From: Markus Probst via B4 Relay @ 2026-04-27 18:12 UTC (permalink / raw)
To: Hans de Goede, Ilpo Järvinen, Bryan O'Donoghue,
Lee Jones, Pavel Machek, Miguel Ojeda, Boqun Feng, Gary Guo,
Björn Roy Baron, Benno Lossin, Andreas Hindborg, Alice Ryhl,
Trevor Gross, Danilo Krummrich, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Greg Kroah-Hartman
Cc: platform-driver-x86, linux-leds, devicetree, linux-kernel,
rust-for-linux, Markus Probst, Krzysztof Kozlowski
From: Markus Probst <markus.probst@posteo.de>
Add the Synology Microp devicetree bindings. Those devices are
microcontrollers found on Synology NAS devices. They are connected to a
serial port on the host device.
Those devices are used to control certain LEDs, fan speeds, a beeper, to
handle buttons, fan failures and to properly shutdown and reboot the
device.
The device has a different feature set depending on the Synology NAS
model, like having different number of fans, buttons and leds. Depending
on the architecture of the model, they also need a different system
shutdown behaviour.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Markus Probst <markus.probst@posteo.de>
---
.../synology,ds918p-microp.yaml | 100 +++++++++++++++++++++
1 file changed, 100 insertions(+)
diff --git a/Documentation/devicetree/bindings/embedded-controller/synology,ds918p-microp.yaml b/Documentation/devicetree/bindings/embedded-controller/synology,ds918p-microp.yaml
new file mode 100644
index 000000000000..eb1c9d3fac07
--- /dev/null
+++ b/Documentation/devicetree/bindings/embedded-controller/synology,ds918p-microp.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/embedded-controller/synology,ds918p-microp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synology NAS on-board Microcontroller
+
+maintainers:
+ - Markus Probst <markus.probst@posteo.de>
+
+description: |
+ Synology Microp is a microcontroller found in Synology NAS devices.
+ It is connected to a serial port on the host device.
+
+ It is necessary to properly shutdown and reboot the NAS device and
+ provides additional functionality such as led control, fan speed control,
+ a beeper and buttons on the NAS device.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - synology,ds1221rpp-microp
+ - synology,rs822p-microp
+ - synology,rs422p-microp
+ - const: synology,rs1221p-microp
+
+ - items:
+ - const: synology,ds1825p-microp
+ - const: synology,ds1823xsp-microp
+
+ - items:
+ - enum:
+ - synology,ds725p-microp
+ - synology,ds225p-microp
+ - synology,ds723p-microp
+ - synology,ds710p-microp
+ - const: synology,ds214play-microp
+
+ - items:
+ - enum:
+ - synology,ds425p-microp
+ - synology,ds1525p-microp
+ - synology,ds925p-microp
+ - synology,ds923p-microp
+ - synology,ds1522p-microp
+ - synology,ds1010p-microp
+ - synology,ds411p-microp
+ - const: synology,ds918p-microp
+
+ - items:
+ - enum:
+ - synology,ds124-microp
+ - synology,ds223j-microp
+ - synology,ds223-microp
+ - const: synology,ds118-microp
+
+ - enum:
+ - synology,ds118-microp
+ - synology,ds1823xsp-microp
+ - synology,rs1221p-microp
+ - synology,ds918p-microp
+ - synology,ds214play-microp
+
+ fan-failure-gpios:
+ description: GPIOs needed to determine which fans stopped working on a fan failure event.
+ minItems: 2
+ maxItems: 3
+
+required:
+ - compatible
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - synology,ds918p-microp
+ - synology,rs422p-microp
+ then:
+ required:
+ - fan-failure-gpios
+ else:
+ properties:
+ fan-failure-gpios: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ embedded-controller {
+ compatible = "synology,ds923p-microp", "synology,ds918p-microp";
+
+ fan-failure-gpios = <&gpio 68 GPIO_ACTIVE_HIGH>, <&gpio 69 GPIO_ACTIVE_HIGH>;
+ };
--
2.53.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v11 2/2] platform: Add initial synology microp driver
2026-04-27 18:12 [PATCH v11 0/2] Introduce Synology Microp driver Markus Probst via B4 Relay
2026-04-27 18:12 ` [PATCH v11 1/2] dt-bindings: embedded-controller: Add synology microp devices Markus Probst via B4 Relay
@ 2026-04-27 18:12 ` Markus Probst via B4 Relay
1 sibling, 0 replies; 3+ messages in thread
From: Markus Probst via B4 Relay @ 2026-04-27 18:12 UTC (permalink / raw)
To: Hans de Goede, Ilpo Järvinen, Bryan O'Donoghue,
Lee Jones, Pavel Machek, Miguel Ojeda, Boqun Feng, Gary Guo,
Björn Roy Baron, Benno Lossin, Andreas Hindborg, Alice Ryhl,
Trevor Gross, Danilo Krummrich, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Greg Kroah-Hartman
Cc: platform-driver-x86, linux-leds, devicetree, linux-kernel,
rust-for-linux, Markus Probst
From: Markus Probst <markus.probst@posteo.de>
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 <markus.probst@posteo.de>
---
MAINTAINERS | 7 +
drivers/platform/Kconfig | 2 +
drivers/platform/Makefile | 1 +
drivers/platform/synology_microp/Kconfig | 13 +
drivers/platform/synology_microp/Makefile | 3 +
drivers/platform/synology_microp/command.rs | 54 ++++
drivers/platform/synology_microp/led.rs | 287 +++++++++++++++++++++
drivers/platform/synology_microp/model.rs | 49 ++++
.../platform/synology_microp/synology_microp.rs | 90 +++++++
9 files changed, 506 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 1cce5359c23e..779cadd74df8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -25785,6 +25785,13 @@ F: drivers/dma-buf/sync_*
F: include/linux/sync_file.h
F: include/uapi/linux/sync_file.h
+SYNOLOGY MICROP DRIVER
+M: Markus Probst <markus.probst@posteo.de>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/embedded-controller/synology,ds918p-microp.yaml
+F: drivers/platform/synology_microp/
+
SYNOPSYS ARC ARCHITECTURE
M: Vineet Gupta <vgupta@kernel.org>
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"
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-$(CONFIG_SURFACE_PLATFORMS) += surface/
obj-$(CONFIG_ARM64_PLATFORM_DEVICES) += arm64/
obj-$(CONFIG_BCM2835_VCHIQ) += raspberrypi/
obj-$(CONFIG_ACPI_WMI) += wmi/
+obj-$(CONFIG_SYNOLOGY_MICROP) += synology_microp/
diff --git a/drivers/platform/synology_microp/Kconfig b/drivers/platform/synology_microp/Kconfig
new file mode 100644
index 000000000000..8878cfb7bcdd
--- /dev/null
+++ b/drivers/platform/synology_microp/Kconfig
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+
+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 EC 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/synology_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 += synology_microp.o
diff --git a/drivers/platform/synology_microp/command.rs b/drivers/platform/synology_microp/command.rs
new file mode 100644
index 000000000000..58cb2f3cb3da
--- /dev/null
+++ b/drivers/platform/synology_microp/command.rs
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use kernel::{
+ device::Bound,
+ error::Result,
+ serdev, //
+};
+
+use crate::led;
+
+#[expect(
+ clippy::enum_variant_names,
+ reason = "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<Bound>) -> Result {
+ dev.write_all(
+ match self {
+ Self::PowerLed(led::State::On) => &[0x34],
+ Self::PowerLed(led::State::Blink) => &[0x35],
+ Self::PowerLed(led::State::Off) => &[0x36],
+
+ Self::StatusLed(_, led::State::Off) => &[0x37],
+ Self::StatusLed(led::StatusLedColor::Green, led::State::On) => &[0x38],
+ Self::StatusLed(led::StatusLedColor::Green, led::State::Blink) => &[0x39],
+ Self::StatusLed(led::StatusLedColor::Amber, led::State::On) => &[0x3A],
+ Self::StatusLed(led::StatusLedColor::Amber, led::State::Blink) => &[0x3B],
+
+ Self::AlertLed(led::State::On) => &[0x4C, 0x41, 0x31],
+ Self::AlertLed(led::State::Blink) => &[0x4C, 0x41, 0x32],
+ Self::AlertLed(led::State::Off) => &[0x4C, 0x41, 0x33],
+
+ Self::UsbLed(led::State::On) => &[0x40],
+ Self::UsbLed(led::State::Blink) => &[0x41],
+ Self::UsbLed(led::State::Off) => &[0x42],
+
+ Self::EsataLed(led::State::On) => &[0x4C, 0x45, 0x31],
+ Self::EsataLed(led::State::Blink) => &[0x4C, 0x45, 0x32],
+ Self::EsataLed(led::State::Off) => &[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/synology_microp/led.rs
new file mode 100644
index 000000000000..8b8d1ba531ab
--- /dev/null
+++ b/drivers/platform/synology_microp/led.rs
@@ -0,0 +1,287 @@
+// 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,
+ time::Delta, //
+};
+use pin_init::pin_init_scope;
+
+use crate::{
+ command::Command,
+ model::Model, //
+};
+
+#[pin_data]
+pub(crate) struct Data {
+ #[pin]
+ status: Devres<led::MultiColorDevice<StatusLedHandler>>,
+ power_name: CString,
+ #[pin]
+ power: Devres<led::Device<LedHandler>>,
+}
+
+impl Data {
+ pub(super) fn register<'a>(
+ dev: &'a serdev::Device<Bound>,
+ model: &'a Model,
+ ) -> impl PinInit<Self, Error> + 'a {
+ pin_init_scope(move || {
+ if let Some(color) = model.led_alert {
+ let name =
+ CString::try_from_fmt(fmt!("synology:{}:alarm", color.as_c_str().to_str()?))?;
+ devres::register(
+ dev.as_ref(),
+ led::DeviceBuilder::new().color(color).name(&name).build(
+ 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"synology: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"synology: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"synology:multicolor:status")
+ .build_multicolor(
+ dev,
+ try_pin_init!(StatusLedHandler {
+ blink <- new_mutex!(false),
+ }),
+ StatusLedHandler::SUBLEDS,
+ ),
+ power_name: CString::try_from_fmt(fmt!(
+ "synology:{}: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,
+ Amber,
+}
+
+#[derive(Copy, Clone)]
+pub(crate) enum State {
+ On,
+ Blink,
+ Off,
+}
+
+#[pin_data]
+struct LedHandler {
+ #[pin]
+ blink: Mutex<bool>,
+ command: fn(State) -> Command,
+}
+
+/// Blink delay measured using video recording on DS923+ for Power and Status Led.
+///
+/// We assume it is the same for all other leds and models.
+const BLINK_DELAY: Delta = Delta::from_millis(167);
+
+#[vtable]
+impl LedOps for LedHandler {
+ type Bus = serdev::Device<Bound>;
+ type Mode = led::Normal;
+ const BLOCKING: bool = true;
+ const MAX_BRIGHTNESS: u32 = 1;
+
+ fn brightness_set(
+ &self,
+ dev: &Self::Bus,
+ _classdev: &led::Device<Self>,
+ brightness: u32,
+ ) -> Result<()> {
+ let mut blink = self.blink.lock();
+ (self.command)(if brightness == 0 {
+ *blink = false;
+ State::Off
+ } else if *blink {
+ State::Blink
+ } else {
+ State::On
+ })
+ .write(dev)?;
+
+ Ok(())
+ }
+
+ fn blink_set(
+ &self,
+ dev: &Self::Bus,
+ _classdev: &led::Device<Self>,
+ delay_on: &mut usize,
+ delay_off: &mut usize,
+ ) -> Result<()> {
+ let mut blink = self.blink.lock();
+
+ (self.command)(if *delay_on == 0 && *delay_off != 0 {
+ *blink = false;
+
+ State::Off
+ } else if *delay_on != 0 && *delay_off == 0 {
+ *blink = false;
+
+ State::On
+ } else {
+ *blink = true;
+ *delay_on = BLINK_DELAY.as_millis() as usize;
+ *delay_off = BLINK_DELAY.as_millis() as usize;
+
+ State::Blink
+ })
+ .write(dev)
+ }
+}
+
+#[pin_data]
+struct StatusLedHandler {
+ #[pin]
+ blink: Mutex<bool>,
+}
+
+impl StatusLedHandler {
+ const SUBLEDS: &[MultiColorSubLed] = &[
+ MultiColorSubLed::new(led::Color::Green).initial_intensity(1),
+ MultiColorSubLed::new(led::Color::Amber),
+ ];
+}
+
+#[vtable]
+impl LedOps for StatusLedHandler {
+ type Bus = serdev::Device<Bound>;
+ type Mode = led::MultiColor;
+ const BLOCKING: bool = true;
+ const MAX_BRIGHTNESS: u32 = 1;
+
+ fn brightness_set(
+ &self,
+ dev: &Self::Bus,
+ classdev: &led::MultiColorDevice<Self>,
+ brightness: u32,
+ ) -> Result<()> {
+ let mut blink = self.blink.lock();
+ if brightness == 0 {
+ *blink = false;
+ }
+
+ let (color, subled_brightness) = if classdev.subleds()[1].intensity == 0 {
+ (StatusLedColor::Green, classdev.subleds()[0].brightness)
+ } else {
+ (StatusLedColor::Amber, classdev.subleds()[1].brightness)
+ };
+
+ Command::StatusLed(
+ color,
+ if subled_brightness == 0 {
+ State::Off
+ } else if *blink {
+ State::Blink
+ } else {
+ State::On
+ },
+ )
+ .write(dev)
+ }
+
+ fn blink_set(
+ &self,
+ dev: &Self::Bus,
+ classdev: &led::MultiColorDevice<Self>,
+ delay_on: &mut usize,
+ delay_off: &mut usize,
+ ) -> Result<()> {
+ let mut blink = self.blink.lock();
+ *blink = true;
+
+ let (color, subled_intensity) = if classdev.subleds()[1].intensity == 0 {
+ (StatusLedColor::Green, classdev.subleds()[0].intensity)
+ } else {
+ (StatusLedColor::Amber, classdev.subleds()[1].intensity)
+ };
+ Command::StatusLed(
+ color,
+ if *delay_on == 0 && *delay_off != 0 {
+ *blink = false;
+ State::Off
+ } else if subled_intensity == 0 {
+ State::Off
+ } else if *delay_on != 0 && *delay_off == 0 {
+ *blink = false;
+ State::On
+ } else {
+ *delay_on = BLINK_DELAY.as_millis() as usize;
+ *delay_off = BLINK_DELAY.as_millis() as usize;
+
+ State::Blink
+ },
+ )
+ .write(dev)
+ }
+}
diff --git a/drivers/platform/synology_microp/model.rs b/drivers/platform/synology_microp/model.rs
new file mode 100644
index 000000000000..715d8840f56b
--- /dev/null
+++ b/drivers/platform/synology_microp/model.rs
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use kernel::led::Color;
+
+pub(crate) struct Model {
+ pub(crate) led_power: Color,
+ pub(crate) led_alert: Option<Color>,
+ pub(crate) led_usb_copy: bool,
+ pub(crate) led_esata: bool,
+}
+
+impl Model {
+ pub(super) const fn new() -> Self {
+ Self {
+ led_power: Color::Blue,
+ led_alert: None,
+ led_usb_copy: false,
+ led_esata: false,
+ }
+ }
+
+ pub(super) const fn led_power(self, color: Color) -> Self {
+ Self {
+ led_power: color,
+ ..self
+ }
+ }
+
+ pub(super) const fn led_alert(self, color: Color) -> Self {
+ Self {
+ led_alert: Some(color),
+ ..self
+ }
+ }
+
+ pub(super) const fn led_esata(self) -> Self {
+ Self {
+ led_esata: true,
+ ..self
+ }
+ }
+
+ pub(super) const fn led_usb_copy(self) -> Self {
+ Self {
+ led_usb_copy: true,
+ ..self
+ }
+ }
+}
diff --git a/drivers/platform/synology_microp/synology_microp.rs b/drivers/platform/synology_microp/synology_microp.rs
new file mode 100644
index 000000000000..e2fff82dba7d
--- /dev/null
+++ b/drivers/platform/synology_microp/synology_microp.rs
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! Synology Microp driver
+
+use kernel::{
+ device,
+ led::Color,
+ of::{
+ DeviceId,
+ IdTable, //
+ },
+ of_device_table,
+ 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 <markus.probst@posteo.de>"],
+ description: "Synology Microp driver",
+ license: "GPL v2",
+}
+
+#[rustfmt::skip]
+of_device_table!(
+ OF_TABLE,
+ MODULE_OF_TABLE,
+ Model,
+ [
+ // apollolake
+ (DeviceId::new(c"synology,ds918p-microp"), Model::new()),
+
+ // evansport
+ (DeviceId::new(c"synology,ds214play-microp"), Model::new()),
+
+ // geminilakenk
+ (DeviceId::new(c"synology,ds225p-microp"), Model::new().led_usb_copy()),
+
+ // pineview
+ (DeviceId::new(c"synology,ds710p-microp"), Model::new().led_esata()),
+ (DeviceId::new(c"synology,ds1010p-microp"), Model::new().led_alert(Color::Amber)),
+
+ // rtd1296
+ (DeviceId::new(c"synology,ds118-microp"), Model::new()),
+
+ // rtd1619b
+ (DeviceId::new(c"synology,ds223-microp"), Model::new().led_usb_copy()),
+
+ // v1000
+ (DeviceId::new(c"synology,ds1823xsp-microp"), Model::new()),
+ (DeviceId::new(c"synology,rs1221p-microp"), Model::new().led_power(Color::Green)),
+ ]
+);
+
+#[pin_data]
+struct SynologyMicropDriver {
+ #[pin]
+ led: led::Data,
+}
+
+#[vtable]
+impl serdev::Driver for SynologyMicropDriver {
+ type IdInfo = Model;
+ const OF_ID_TABLE: Option<IdTable<Self::IdInfo>> = Some(&OF_TABLE);
+
+ fn probe(
+ dev: &serdev::Device<device::Core>,
+ model: Option<&Model>,
+ ) -> impl PinInit<Self, kernel::error::Error> {
+ pin_init_scope(move || {
+ let model = 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),
+ }))
+ })
+ }
+}
--
2.53.0
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2026-04-27 18:12 [PATCH v11 0/2] Introduce Synology Microp driver Markus Probst via B4 Relay
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