diff options
Diffstat (limited to 'src/Xmobar/Plugins/Monitors/Batt.hs')
| -rw-r--r-- | src/Xmobar/Plugins/Monitors/Batt.hs | 186 |
1 files changed, 10 insertions, 176 deletions
diff --git a/src/Xmobar/Plugins/Monitors/Batt.hs b/src/Xmobar/Plugins/Monitors/Batt.hs index af932ae..52600d8 100644 --- a/src/Xmobar/Plugins/Monitors/Batt.hs +++ b/src/Xmobar/Plugins/Monitors/Batt.hs @@ -17,44 +17,18 @@ module Xmobar.Plugins.Monitors.Batt ( battConfig, runBatt, runBatt' ) where -import System.Process (system) -import Control.Monad (void, unless) +import Xmobar.Plugins.Monitors.Batt.Common (BattOpts(..) + , Result(..) + , Status(..)) import Xmobar.Plugins.Monitors.Common -import Control.Exception (SomeException, handle) -import System.FilePath ((</>)) -import System.IO (IOMode(ReadMode), hGetLine, withFile) -import System.Posix.Files (fileExist) -#ifdef FREEBSD -import System.BSD.Sysctl (sysctlReadInt) -#endif import System.Console.GetOpt -import Data.List (sort, sortBy, group) -import Data.Maybe (fromMaybe) -import Data.Ord (comparing) -import Text.Read (readMaybe) -data BattOpts = BattOpts - { onString :: String - , offString :: String - , idleString :: String - , posColor :: Maybe String - , lowWColor :: Maybe String - , mediumWColor :: Maybe String - , highWColor :: Maybe String - , lowThreshold :: Float - , highThreshold :: Float - , onLowAction :: Maybe String - , actionThreshold :: Float - , onlineFile :: FilePath - , scale :: Float - , onIconPattern :: Maybe IconPattern - , offIconPattern :: Maybe IconPattern - , idleIconPattern :: Maybe IconPattern - , lowString :: String - , mediumString :: String - , highString :: String - , incPerc :: Bool - } +#if defined(freebsd_HOST_OS) +import qualified Xmobar.Plugins.Monitors.Batt.FreeBSD as MB +#else +import qualified Xmobar.Plugins.Monitors.Batt.Linux as MB +#endif + defaultOpts :: BattOpts defaultOpts = BattOpts @@ -108,34 +82,11 @@ options = , Option "" ["highs"] (ReqArg (\x o -> o { highString = x }) "") "" ] -data Status = Charging | Discharging | Full | Idle | Unknown deriving (Read, Eq) --- Result perc watts time-seconds Status -data Result = Result Float Float Float Status | NA - -sysDir :: FilePath -sysDir = "/sys/class/power_supply" - battConfig :: IO MConfig battConfig = mkMConfig "Batt: <watts>, <left>% / <timeleft>" -- template ["leftbar", "leftvbar", "left", "acstatus", "timeleft", "watts", "leftipat"] -- replacements -data Files = Files - { fFull :: String - , fNow :: String - , fVoltage :: String - , fCurrent :: String - , fStatus :: String - , isCurrent :: Bool - } | NoFiles deriving Eq - -data Battery = Battery - { full :: !Float - , now :: !Float - , power :: !Float - , status :: !String - } - data BatteryStatus = BattHigh | BattMedium @@ -153,130 +104,13 @@ getBattStatus charge opts where c = 100 * min 1 charge -maybeAlert :: BattOpts -> Float -> IO () -maybeAlert opts left = - case onLowAction opts of - Nothing -> return () - Just x -> unless (isNaN left || actionThreshold opts < 100 * left) - $ void $ system x - --- | FreeBSD battery query -#ifdef FREEBSD -battStatusFbsd :: Int -> Status -battStatusFbsd x - | x == 1 = Discharging - | x == 2 = Charging - | otherwise = Unknown - -readBatteriesFbsd :: BattOpts -> IO Result -readBatteriesFbsd opts = do - lf <- sysctlReadInt "hw.acpi.battery.life" - rt <- sysctlReadInt "hw.acpi.battery.rate" - tm <- sysctlReadInt "hw.acpi.battery.time" - st <- sysctlReadInt "hw.acpi.battery.state" - acline <- sysctlReadInt "hw.acpi.acline" - let p = fromIntegral lf / 100 - w = fromIntegral rt - t = fromIntegral tm * 60 - ac = acline == 1 - -- battery full when rate is 0 and on ac. - sts = if (w == 0 && ac) then Full else (battStatusFbsd $ fromIntegral st) - unless ac (maybeAlert opts p) - return (Result p w t sts) - -#else --- | query linux battery -safeFileExist :: String -> String -> IO Bool -safeFileExist d f = handle noErrors $ fileExist (d </> f) - where noErrors = const (return False) :: SomeException -> IO Bool - -batteryFiles :: String -> IO Files -batteryFiles bat = - do is_charge <- exists "charge_now" - is_energy <- if is_charge then return False else exists "energy_now" - is_power <- exists "power_now" - plain <- exists (if is_charge then "charge_full" else "energy_full") - let cf = if is_power then "power_now" else "current_now" - sf = if plain then "" else "_design" - return $ case (is_charge, is_energy) of - (True, _) -> files "charge" cf sf is_power - (_, True) -> files "energy" cf sf is_power - _ -> NoFiles - where prefix = sysDir </> bat - exists = safeFileExist prefix - files ch cf sf ip = Files { fFull = prefix </> ch ++ "_full" ++ sf - , fNow = prefix </> ch ++ "_now" - , fCurrent = prefix </> cf - , fVoltage = prefix </> "voltage_now" - , fStatus = prefix </> "status" - , isCurrent = not ip} - -haveAc :: FilePath -> IO Bool -haveAc f = - handle onError $ withFile (sysDir </> f) ReadMode (fmap (== "1") . hGetLine) - where onError = const (return False) :: SomeException -> IO Bool - -readBattery :: Float -> Files -> IO Battery -readBattery _ NoFiles = return $ Battery 0 0 0 "Unknown" -readBattery sc files = - do a <- grab $ fFull files - b <- grab $ fNow files - d <- grab $ fCurrent files - s <- grabs $ fStatus files - let sc' = if isCurrent files then sc / 10 else sc - a' = max a b -- sometimes the reported max charge is lower than - return $ Battery (3600 * a' / sc') -- wattseconds - (3600 * b / sc') -- wattseconds - (abs d / sc') -- watts - s -- string: Discharging/Charging/Full - where grab f = handle onError $ withFile f ReadMode (fmap read . hGetLine) - onError = const (return (-1)) :: SomeException -> IO Float - grabs f = handle onError' $ withFile f ReadMode hGetLine - onError' = const (return "Unknown") :: SomeException -> IO String - --- sortOn is only available starting at ghc 7.10 -sortOn :: Ord b => (a -> b) -> [a] -> [a] -sortOn f = - map snd . sortBy (comparing fst) . map (\x -> let y = f x in y `seq` (y, x)) - -mostCommonDef :: Eq a => a -> [a] -> a -mostCommonDef x xs = head $ last $ [x] : sortOn length (group xs) - -readBatteriesLinux :: BattOpts -> [Files] -> IO Result -readBatteriesLinux opts bfs = - do let bfs' = filter (/= NoFiles) bfs - bats <- mapM (readBattery (scale opts)) (take 3 bfs') - ac <- haveAc (onlineFile opts) - let sign = if ac then 1 else -1 - ft = sum (map full bats) - left = if ft > 0 then sum (map now bats) / ft else 0 - watts = sign * sum (map power bats) - time = if watts == 0 then 0 else max 0 (sum $ map time' bats) - mwatts = if watts == 0 then 1 else sign * watts - time' b = (if ac then full b - now b else now b) / mwatts - statuses :: [Status] - statuses = map (fromMaybe Unknown . readMaybe) - (sort (map status bats)) - acst = mostCommonDef Unknown $ filter (Unknown/=) statuses - racst | acst /= Unknown = acst - | time == 0 = Idle - | ac = Charging - | otherwise = Discharging - unless ac (maybeAlert opts left) - return $ if isNaN left then NA else Result left watts time racst -#endif - runBatt :: [String] -> Monitor String runBatt = runBatt' ["BAT", "BAT0", "BAT1", "BAT2"] runBatt' :: [String] -> [String] -> Monitor String runBatt' bfs args = do opts <- io $ parseOptsWith options defaultOpts args -#ifdef FREEBSD - c <- io $ readBatteriesFbsd opts -#else - c <- io $ readBatteriesLinux opts =<< mapM batteryFiles bfs -#endif + c <- io $ MB.readBatteries opts bfs formatResult c opts formatResult :: Result -> BattOpts -> Monitor String |