Files
asusctl/daemon/src/ctrl_leds.rs
2021-02-07 00:25:40 +13:00

570 lines
20 KiB
Rust

// Only these two packets must be 17 bytes
static LED_APPLY: [u8; 17] = [0x5d, 0xb4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
static LED_SET: [u8; 17] = [0x5d, 0xb5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
static KBD_BRIGHT_PATH: &str = "/sys/class/leds/asus::kbd_backlight/brightness";
use crate::{
config::Config,
error::RogError,
laptops::{match_laptop, HELP_ADDRESS},
};
use log::{error, info, warn};
use rog_types::{
aura_brightness_bytes,
aura_modes::{AuraModes, PER_KEY},
fancy::KeyColourArray,
LED_MSG_LEN,
};
use std::fs::OpenOptions;
use std::io::{Read, Write};
use std::sync::Arc;
use std::sync::Mutex;
use std::{convert::TryInto, path::Path};
use zbus::dbus_interface;
use crate::GetSupported;
use serde_derive::{Deserialize, Serialize};
#[derive(Serialize, Deserialize)]
pub struct LedSupportedFunctions {
pub brightness_set: bool,
pub stock_led_modes: Option<Vec<u8>>,
pub per_key_led_mode: bool,
}
impl GetSupported for CtrlKbdBacklight {
type A = LedSupportedFunctions;
fn get_supported() -> Self::A {
// let mode = <&str>::from(&<AuraModes>::from(*mode));
let mut stock_led_modes = None;
let mut per_key_led_mode = false;
if let Some(laptop) = match_laptop() {
let modes = laptop.supported_modes().to_vec();
if modes.contains(&PER_KEY) {
per_key_led_mode = true;
let modes = modes.iter().filter(|x| **x != PER_KEY).copied().collect();
stock_led_modes = Some(modes);
} else {
stock_led_modes = Some(modes);
}
}
LedSupportedFunctions {
brightness_set: CtrlKbdBacklight::get_kbd_bright_path().is_ok(),
stock_led_modes,
per_key_led_mode,
}
}
}
pub struct CtrlKbdBacklight {
led_node: Option<String>,
#[allow(dead_code)]
kbd_node: Option<String>,
pub bright_node: String,
supported_modes: Vec<u8>,
flip_effect_write: bool,
config: Arc<Mutex<Config>>,
}
pub struct DbusKbdBacklight {
inner: Arc<Mutex<CtrlKbdBacklight>>,
}
impl DbusKbdBacklight {
pub fn new(inner: Arc<Mutex<CtrlKbdBacklight>>) -> Self {
Self { inner }
}
}
trait Dbus {
fn set_led(&mut self, data: String);
fn ledmode(&self) -> String;
fn notify_led(&self, data: &str) -> zbus::Result<()>;
}
impl crate::ZbusAdd for DbusKbdBacklight {
fn add_to_server(self, server: &mut zbus::ObjectServer) {
server
.at(&"/org/asuslinux/Led".try_into().unwrap(), self)
.map_err(|err| {
error!("DbusKbdBacklight: add_to_server {}", err);
})
.ok();
}
}
#[dbus_interface(name = "org.asuslinux.Daemon")]
impl DbusKbdBacklight {
fn set_led_mode(&mut self, data: String) {
if let Ok(data) = serde_json::from_str(&data) {
if let Ok(mut ctrl) = self.inner.try_lock() {
if let Ok(mut cfg) = ctrl.config.clone().try_lock() {
match &data {
AuraModes::PerKey(_) => {
ctrl.do_command(data, &mut cfg)
.unwrap_or_else(|err| warn!("{}", err));
}
_ => {
if let Ok(json) = serde_json::to_string(&data) {
match ctrl.do_command(data, &mut cfg) {
Ok(_) => {
self.notify_led(&json).ok();
}
Err(err) => {
warn!("{}", err);
}
}
}
}
}
}
}
} else {
warn!("SetKeyBacklight could not deserialise");
}
}
fn next_led_mode(&self) {
if let Ok(mut ctrl) = self.inner.try_lock() {
if let Ok(mut cfg) = ctrl.config.clone().try_lock() {
ctrl.toggle_mode(false, &mut cfg)
.unwrap_or_else(|err| warn!("{}", err));
if let Some(mode) = cfg.get_led_mode_data(cfg.kbd_backlight_mode) {
if let Ok(json) = serde_json::to_string(&mode) {
self.notify_led(&json)
.unwrap_or_else(|err| warn!("{}", err));
}
}
}
}
}
fn prev_led_mode(&self) {
if let Ok(mut ctrl) = self.inner.try_lock() {
if let Ok(mut cfg) = ctrl.config.clone().try_lock() {
ctrl.toggle_mode(true, &mut cfg)
.unwrap_or_else(|err| warn!("{}", err));
if let Some(mode) = cfg.get_led_mode_data(cfg.kbd_backlight_mode) {
if let Ok(json) = serde_json::to_string(&mode) {
self.notify_led(&json)
.unwrap_or_else(|err| warn!("{}", err));
}
}
}
}
}
/// Return the current mode data
fn led_mode(&self) -> String {
if let Ok(ctrl) = self.inner.try_lock() {
if let Ok(cfg) = ctrl.config.clone().try_lock() {
if let Some(mode) = cfg.get_led_mode_data(cfg.kbd_backlight_mode) {
if let Ok(json) = serde_json::to_string(&mode) {
return json;
}
}
}
}
warn!("SetKeyBacklight could not deserialise");
"SetKeyBacklight could not deserialise".to_string()
}
/// Return a list of available modes
fn led_modes(&self) -> String {
if let Ok(ctrl) = self.inner.try_lock() {
if let Ok(cfg) = ctrl.config.clone().try_lock() {
if let Ok(json) = serde_json::to_string(&cfg.kbd_backlight_modes) {
return json;
}
}
}
warn!("SetKeyBacklight could not deserialise");
"SetKeyBacklight could not deserialise".to_string()
}
/// Return the current LED brightness
fn led_brightness(&self) -> i8 {
if let Ok(ctrl) = self.inner.try_lock() {
if let Ok(cfg) = ctrl.config.clone().try_lock() {
return cfg.kbd_led_brightness as i8;
}
}
warn!("SetKeyBacklight could not deserialise");
-1
}
#[dbus_interface(signal)]
fn notify_led(&self, data: &str) -> zbus::Result<()>;
}
impl crate::Reloadable for CtrlKbdBacklight {
fn reload(&mut self) -> Result<(), RogError> {
// set current mode (if any)
if let Ok(mut config) = self.config.clone().try_lock() {
if self.supported_modes.len() > 1 {
if self.supported_modes.contains(&config.kbd_backlight_mode) {
let mode = config
.get_led_mode_data(config.kbd_backlight_mode)
.ok_or(RogError::NotSupported)?
.to_owned();
self.write_mode(&mode)?;
info!("Reloaded last used mode");
} else {
warn!(
"An unsupported mode was set: {}, reset to first mode available",
<&str>::from(&<AuraModes>::from(config.kbd_backlight_mode))
);
for (idx, mode) in config.kbd_backlight_modes.iter_mut().enumerate() {
if !self.supported_modes.contains(&mode.into()) {
config.kbd_backlight_modes.remove(idx);
config.write();
break;
}
}
config.kbd_backlight_mode = self.supported_modes[0];
// TODO: do a recursive call with a boxed dyn future later
let mode = config
.get_led_mode_data(config.kbd_backlight_mode)
.ok_or(RogError::NotSupported)?
.to_owned();
self.write_mode(&mode)?;
info!("Reloaded last used mode");
}
}
// Reload brightness
let bright = config.kbd_led_brightness;
let bytes = aura_brightness_bytes(bright);
self.write_bytes(&bytes)?;
info!("Reloaded last used brightness");
}
Ok(())
}
}
impl crate::CtrlTask for CtrlKbdBacklight {
fn do_task(&mut self) -> Result<(), RogError> {
let mut file = OpenOptions::new()
.read(true)
.open(&self.bright_node)
.map_err(|err| match err.kind() {
std::io::ErrorKind::NotFound => {
RogError::MissingLedBrightNode((&self.bright_node).into(), err)
}
_ => RogError::Path((&self.bright_node).into(), err),
})?;
let mut buf = [0u8; 1];
file.read_exact(&mut buf)
.map_err(|err| RogError::Read("buffer".into(), err))?;
if let Some(num) = char::from(buf[0]).to_digit(10) {
if let Ok(mut config) = self.config.clone().try_lock() {
if config.kbd_led_brightness != num as u8 {
config.read();
config.kbd_led_brightness = num as u8;
config.write();
}
}
return Ok(());
}
Err(RogError::ParseLED)
}
}
impl CtrlKbdBacklight {
#[inline]
pub fn new(
id_product: &str,
condev_iface: Option<&String>,
supported_modes: Vec<u8>,
config: Arc<Mutex<Config>>,
) -> Result<Self, RogError> {
// TODO: return error if *all* nodes are None
let led_node = Self::get_node_failover(id_product, None, Self::scan_led_node).map_or_else(
|err| {
warn!("led_node: {}", err);
None
},
Some,
);
let kbd_node = Self::get_node_failover(id_product, condev_iface, Self::scan_kbd_node)
.map_or_else(
|err| {
warn!("kbd_node: {}", err);
None
},
Some,
);
let bright_node = Self::get_kbd_bright_path();
if led_node.is_none() && kbd_node.is_none() && Self::get_kbd_bright_path().is_err() {
return Err(RogError::MissingFunction(
"All keyboard features missing, you may require a v5.11 series kernel or newer"
.into(),
));
}
let ctrl = CtrlKbdBacklight {
// Using `ok` here so we can continue without keyboard features but
// still get brightness control at least... maybe...
led_node,
kbd_node,
// TODO: Check for existance
bright_node: bright_node?.to_owned(),
supported_modes,
flip_effect_write: false,
config,
};
Ok(ctrl)
}
fn get_kbd_bright_path() -> Result<&'static str, RogError> {
if Path::new(KBD_BRIGHT_PATH).exists() {
Ok(KBD_BRIGHT_PATH)
} else {
Err(RogError::MissingFunction(
"Keyboard features missing, you may require a v5.11 series kernel or newer".into(),
))
}
}
fn get_node_failover(
id_product: &str,
iface: Option<&String>,
fun: fn(&str, Option<&String>) -> Result<String, RogError>,
) -> Result<String, RogError> {
match fun(id_product, iface) {
Ok(o) => return Ok(o),
Err(e) => {
warn!("Looking for node: {}", e.to_string());
}
}
Err(RogError::NotFound(format!("{}, {:?}", id_product, iface)))
}
fn scan_led_node(id_product: &str, _: Option<&String>) -> Result<String, RogError> {
let mut enumerator = udev::Enumerator::new().map_err(|err| {
warn!("{}", err);
RogError::Udev("enumerator failed".into(), err)
})?;
enumerator.match_subsystem("hidraw").map_err(|err| {
warn!("{}", err);
RogError::Udev("match_subsystem failed".into(), err)
})?;
for device in enumerator.scan_devices().map_err(|err| {
warn!("{}", err);
RogError::Udev("scan_devices failed".into(), err)
})? {
if let Some(parent) = device
.parent_with_subsystem_devtype("usb", "usb_device")
.map_err(|err| {
warn!("{}", err);
RogError::Udev("parent_with_subsystem_devtype failed".into(), err)
})?
{
if parent
.attribute_value("idProduct")
.ok_or_else(|| RogError::NotFound("LED idProduct".into()))?
== id_product
{
if let Some(dev_node) = device.devnode() {
info!("Using device at: {:?} for LED control", dev_node);
return Ok(dev_node.to_string_lossy().to_string());
}
}
}
}
warn!("Did not find a hidraw node for LED control, your device may be unsupported or require a kernel patch, see: {}", HELP_ADDRESS);
Err(RogError::MissingFunction(
"ASUS LED device node not found".into(),
))
}
fn scan_kbd_node(id_product: &str, iface: Option<&String>) -> Result<String, RogError> {
let mut enumerator = udev::Enumerator::new().map_err(|err| {
warn!("{}", err);
RogError::Udev("enumerator failed".into(), err)
})?;
enumerator.match_subsystem("input").map_err(|err| {
warn!("{}", err);
RogError::Udev("match_subsystem failed".into(), err)
})?;
enumerator
.match_property("ID_MODEL_ID", id_product)
.map_err(|err| {
warn!("{}", err);
RogError::Udev("match_property failed".into(), err)
})?;
for device in enumerator
.scan_devices()
.map_err(|err| {
warn!("{}", err);
err
})
.map_err(|err| {
warn!("{}", err);
RogError::Udev("scan_devices failed".into(), err)
})?
{
if let Some(dev_node) = device.devnode() {
if let Some(inum) = device.property_value("ID_USB_INTERFACE_NUM") {
if let Some(iface) = iface {
if inum == iface.as_str() {
info!("Using device at: {:?} for keyboard polling", dev_node);
return Ok(dev_node.to_string_lossy().to_string());
}
}
}
}
}
warn!("Did not find keyboard consumer device node, if expected functions are missing please file an issue at {}", HELP_ADDRESS);
Err(RogError::MissingFunction(
"ASUS keyboard 'Consumer Device' node not found".into(),
))
}
pub fn do_command(&mut self, mode: AuraModes, config: &mut Config) -> Result<(), RogError> {
self.set_and_save(mode, config)
}
/// Should only be used if the bytes you are writing are verified correct
#[inline]
fn write_bytes(&self, message: &[u8]) -> Result<(), RogError> {
if let Some(led_node) = &self.led_node {
if let Ok(mut file) = OpenOptions::new().write(true).open(led_node) {
// println!("write: {:02x?}", &message);
return file
.write_all(message)
.map_err(|err| RogError::Write("write_bytes".into(), err));
}
}
Err(RogError::NotSupported)
}
/// Write an effect block
#[inline]
fn write_effect(&mut self, effect: &[Vec<u8>]) -> Result<(), RogError> {
if self.flip_effect_write {
for row in effect.iter().rev() {
self.write_bytes(row)?;
}
} else {
for row in effect.iter() {
self.write_bytes(row)?;
}
}
self.flip_effect_write = !self.flip_effect_write;
Ok(())
}
/// Used to set a builtin mode and save the settings for it
///
/// This needs to be universal so that settings applied by dbus stick
#[inline]
fn set_and_save(&mut self, mode: AuraModes, config: &mut Config) -> Result<(), RogError> {
match mode {
AuraModes::LedBrightness(n) => {
let bytes: [u8; LED_MSG_LEN] = (&mode).into();
self.write_bytes(&bytes)?;
config.read();
config.kbd_led_brightness = n;
config.write();
info!("LED brightness set to {:#?}", n);
}
AuraModes::PerKey(v) => {
if v.is_empty() || v[0].is_empty() {
let bytes = KeyColourArray::get_init_msg();
self.write_bytes(&bytes)?;
} else {
self.write_effect(&v)?;
}
}
_ => {
config.read();
let mode_num: u8 = u8::from(&mode);
self.write_mode(&mode)?;
config.kbd_backlight_mode = mode_num;
config.set_mode_data(mode);
config.write();
}
}
Ok(())
}
#[inline]
fn toggle_mode(&mut self, reverse: bool, config: &mut Config) -> Result<(), RogError> {
let current = config.kbd_backlight_mode;
if let Some(idx) = self.supported_modes.iter().position(|v| *v == current) {
let mut idx = idx;
// goes past end of array
if reverse {
if idx == 0 {
idx = self.supported_modes.len() - 1;
} else {
idx -= 1;
}
} else {
idx += 1;
if idx == self.supported_modes.len() {
idx = 0;
}
}
let next = self.supported_modes[idx];
config.read();
if let Some(data) = config.get_led_mode_data(next) {
self.write_mode(&data)?;
config.kbd_backlight_mode = next;
}
config.write();
}
Ok(())
}
#[inline]
fn write_mode(&mut self, mode: &AuraModes) -> Result<(), RogError> {
let mode_num: u8 = u8::from(mode);
if !self.supported_modes.contains(&mode_num) {
return Err(RogError::NotSupported);
}
match mode {
AuraModes::PerKey(v) => {
if v.is_empty() || v[0].is_empty() {
let bytes = KeyColourArray::get_init_msg();
self.write_bytes(&bytes)?;
} else {
self.write_effect(v)?;
}
}
AuraModes::MultiStatic(_) | AuraModes::MultiBreathe(_) => {
let bytes: [[u8; LED_MSG_LEN]; 4] = mode.into();
for array in bytes.iter() {
self.write_bytes(array)?;
}
self.write_bytes(&LED_SET)?;
// Changes won't persist unless apply is set
self.write_bytes(&LED_APPLY)?;
return Ok(());
}
_ => {
let bytes: [u8; LED_MSG_LEN] = mode.into();
self.write_bytes(&bytes)?;
self.write_bytes(&LED_SET)?;
// Changes won't persist unless apply is set
self.write_bytes(&LED_APPLY)?;
}
}
Ok(())
}
}