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dc4e6b1329; Update copyright years in more files64b3777631; Run set-copyright from admin.el8e1c56ae46; Add 2024 to copyright years # Conflicts: # doc/misc/modus-themes.org # doc/misc/texinfo.tex # etc/NEWS # etc/refcards/ru-refcard.tex # etc/themes/modus-operandi-theme.el # etc/themes/modus-themes.el # etc/themes/modus-vivendi-theme.el # lib/alloca.in.h # lib/binary-io.h # lib/c-ctype.h # lib/c-strcasecmp.c # lib/c-strncasecmp.c # lib/careadlinkat.c # lib/cloexec.c # lib/close-stream.c # lib/diffseq.h # lib/dup2.c # lib/filemode.h # lib/fpending.c # lib/fpending.h # lib/fsusage.c # lib/getgroups.c # lib/getloadavg.c # lib/gettext.h # lib/gettime.c # lib/gettimeofday.c # lib/group-member.c # lib/malloc.c # lib/md5-stream.c # lib/md5.c # lib/md5.h # lib/memmem.c # lib/memrchr.c # lib/nanosleep.c # lib/save-cwd.h # lib/sha1.c # lib/sig2str.c # lib/stdlib.in.h # lib/strtoimax.c # lib/strtol.c # lib/strtoll.c # lib/time_r.c # lib/xalloc-oversized.h # lisp/auth-source-pass.el # lisp/emacs-lisp/lisp-mnt.el # lisp/emacs-lisp/timer.el # lisp/info-look.el # lisp/jit-lock.el # lisp/loadhist.el # lisp/mail/rmail.el # lisp/net/ntlm.el # lisp/net/webjump.el # lisp/progmodes/asm-mode.el # lisp/progmodes/project.el # lisp/progmodes/sh-script.el # lisp/textmodes/flyspell.el # lisp/textmodes/reftex-toc.el # lisp/textmodes/reftex.el # lisp/textmodes/tex-mode.el # lisp/url/url-gw.el # m4/alloca.m4 # m4/clock_time.m4 # m4/d-type.m4 # m4/dirent_h.m4 # m4/dup2.m4 # m4/euidaccess.m4 # m4/fchmodat.m4 # m4/filemode.m4 # m4/fsusage.m4 # m4/getgroups.m4 # m4/getloadavg.m4 # m4/getrandom.m4 # m4/gettime.m4 # m4/gettimeofday.m4 # m4/gnulib-common.m4 # m4/group-member.m4 # m4/inttypes.m4 # m4/malloc.m4 # m4/manywarnings.m4 # m4/mempcpy.m4 # m4/memrchr.m4 # m4/mkostemp.m4 # m4/mktime.m4 # m4/nproc.m4 # m4/nstrftime.m4 # m4/pathmax.m4 # m4/pipe2.m4 # m4/pselect.m4 # m4/pthread_sigmask.m4 # m4/readlink.m4 # m4/realloc.m4 # m4/sig2str.m4 # m4/ssize_t.m4 # m4/stat-time.m4 # m4/stddef_h.m4 # m4/stdint.m4 # m4/stdio_h.m4 # m4/stdlib_h.m4 # m4/stpcpy.m4 # m4/strnlen.m4 # m4/strtoimax.m4 # m4/strtoll.m4 # m4/time_h.m4 # m4/timegm.m4 # m4/timer_time.m4 # m4/timespec.m4 # m4/unistd_h.m4 # m4/warnings.m4 # nt/configure.bat # nt/preprep.c # test/lisp/register-tests.el
1176 lines
49 KiB
EmacsLisp
1176 lines
49 KiB
EmacsLisp
;;; battery.el --- display battery status information -*- lexical-binding:t -*-
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;; Copyright (C) 1997-1998, 2000-2024 Free Software Foundation, Inc.
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;; Author: Ralph Schleicher <rs@ralph-schleicher.de>
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;; Maintainer: emacs-devel@gnu.org
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;; Keywords: hardware
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; There is at present support for GNU/Linux, BSD, macOS, and Windows.
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;; This library supports:
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;; - UPower (https://upower.freedesktop.org) via D-Bus API.
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;; - The `/sys/class/power_supply/' files of Linux >= 2.6.39.
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;; - The `/proc/acpi/' directory structure of Linux 2.4.20 and 2.6.
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;; - The `/proc/apm' file format of Linux version 1.3.58 or newer.
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;; - The Haiku ACPI battery driver.
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;; - BSD by using the `apm' program.
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;; - Darwin (macOS) by using the `pmset' program.
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;; - Windows via the GetSystemPowerStatus API call.
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;; - Android 5 or later via the BatteryManager APIs.
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;;; Code:
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(require 'dbus)
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(eval-when-compile (require 'cl-lib))
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(defgroup battery nil
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"Display battery status information."
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:prefix "battery-"
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:group 'hardware)
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(defcustom battery-upower-device nil
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"Preferred UPower device name(s).
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When `battery-status-function' is set to `battery-upower', this
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user option specifies which power sources to query for status
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information and merge into a single report.
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When nil (the default), `battery-upower' queries all present
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battery and line power devices as determined by the UPower
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EnumerateDevices method. A string or a nonempty list of strings
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names particular devices to query instead. UPower battery and
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line power device names typically follow the patterns
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\"battery_BATN\" and \"line_power_ACN\", respectively, with N
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starting at 0 when present. Device names should not include the
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leading D-Bus path \"/org/freedesktop/UPower/devices/\"."
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:version "28.1"
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:type '(choice (const :tag "Autodetect all devices" nil)
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(string :tag "Device")
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(repeat :tag "Devices" string)))
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(defcustom battery-upower-subscribe t
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"Whether to subscribe to UPower device change signals.
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When nil, battery status information is polled every
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`battery-update-interval' seconds. When non-nil (the default),
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the battery status is also updated whenever a power source is
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added or removed, or when the system starts or stops running on
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battery power.
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This only takes effect when `battery-status-function' is set to
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`battery-upower' before enabling `display-battery-mode'."
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:version "28.1"
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:type 'boolean)
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(defconst battery-upower-service "org.freedesktop.UPower"
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"Well-known name of the UPower D-Bus service.
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See URL `https://upower.freedesktop.org/docs/ref-dbus.html'.")
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(defun battery--files (dir)
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"Return a list of absolute file names in DIR or nil on error.
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Value does not include \".\" or \"..\"."
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(ignore-errors (directory-files dir t directory-files-no-dot-files-regexp)))
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(defun battery--find-linux-sysfs-batteries ()
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"Return a list of all sysfs battery directories."
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(let (dirs)
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(dolist (dir (battery--files "/sys/class/power_supply/"))
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(when (file-exists-p (expand-file-name "capacity" dir))
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(push dir dirs)))
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(nreverse dirs)))
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(defcustom battery-status-function
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(cond ((member battery-upower-service (dbus-list-activatable-names))
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#'battery-upower)
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((and (eq system-type 'gnu/linux)
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(file-readable-p "/sys/")
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(battery--find-linux-sysfs-batteries))
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#'battery-linux-sysfs)
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((and (eq system-type 'gnu/linux)
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(file-directory-p "/proc/acpi/battery"))
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#'battery-linux-proc-acpi)
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((and (eq system-type 'gnu/linux)
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(file-readable-p "/proc/")
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(file-readable-p "/proc/apm"))
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#'battery-linux-proc-apm)
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;; Now try the Android battery status function.
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;; Note that even though the Linux kernel APIs are sometimes
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;; available on Android, they are badly implemented by Android
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;; kernels, so avoid using those.
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((eq system-type 'android)
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#'battery-android)
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((and (eq system-type 'berkeley-unix)
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(file-executable-p "/usr/sbin/apm"))
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#'battery-bsd-apm)
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((and (eq system-type 'darwin)
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(ignore-errors
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(with-temp-buffer
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(and (eq (call-process "pmset" nil t nil "-g" "ps") 0)
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(not (bobp))))))
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#'battery-pmset)
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((and (eq system-type 'haiku)
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;; TODO: Support the Haiku APM battery driver.
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(file-directory-p "/dev/power/acpi_battery"))
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#'battery-haiku-acpi-battery)
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((fboundp 'w32-battery-status)
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#'w32-battery-status))
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"Function for getting battery status information.
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The function has to return an alist of conversion definitions.
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Its cons cells are of the form
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(CONVERSION . REPLACEMENT-TEXT)
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CONVERSION is the character code of a \"conversion specification\"
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introduced by a `%' character in a control string."
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:version "28.1"
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:type '(choice (const nil) function))
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(defcustom battery-echo-area-format
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"Power %L, battery %B (%p%% load, remaining time %t)"
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"Control string formatting the string to display in the echo area.
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Ordinary characters in the control string are printed as-is, while
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conversion specifications introduced by a `%' character in the control
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string are substituted as defined by the current value of the variable
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`battery-status-function'. Here are the ones generally available:
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%c Current capacity (mAh or mWh)
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%r Current rate of charge or discharge
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%L AC line status (verbose)
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%B Battery status (verbose)
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%b Battery status: empty means high, `-' means low,
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`!' means critical, and `+' means charging
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%d Temperature (in degrees Celsius)
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%p Battery load percentage
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%s Remaining time (to charge or discharge) in seconds
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%m Remaining time (to charge or discharge) in minutes
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%h Remaining time (to charge or discharge) in hours
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%t Remaining time (to charge or discharge) in the form `h:min'
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The full `format-spec' formatting syntax is supported."
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:link '(info-link "(elisp) Custom Format Strings")
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:type '(choice string (const nil)))
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(defvar battery-mode-line-string nil
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"String to display in the mode line.")
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;;;###autoload (put 'battery-mode-line-string 'risky-local-variable t)
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(defcustom battery-mode-line-limit 100
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"Percentage of full battery load below which display battery status."
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:version "24.1"
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:type 'integer)
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(defcustom battery-mode-line-format
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(cond ((eq battery-status-function #'battery-linux-proc-acpi)
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"[%b%p%%,%d°C] ")
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(battery-status-function
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"[%b%p%%] "))
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"Control string formatting the string to display in the mode line.
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Ordinary characters in the control string are printed as-is, while
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conversion specifications introduced by a `%' character in the control
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string are substituted as defined by the current value of the variable
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`battery-status-function'. Here are the ones generally available:
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%c Current capacity (mAh or mWh)
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%r Current rate of charge or discharge
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%L AC line status (verbose)
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%B Battery status (verbose)
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%b Battery status: empty means high, `-' means low,
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`!' means critical, and `+' means charging
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%d Temperature (in degrees Celsius)
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%p Battery load percentage
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%s Remaining time (to charge or discharge) in seconds
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%m Remaining time (to charge or discharge) in minutes
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%h Remaining time (to charge or discharge) in hours
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%t Remaining time (to charge or discharge) in the form `h:min'
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The full `format-spec' formatting syntax is supported."
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:link '(info-link "(elisp) Custom Format Strings")
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:type '(choice string (const nil)))
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(defcustom battery-update-interval 60
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"Seconds after which the battery status will be updated."
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:type 'integer)
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(defcustom battery-load-low 25
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"Upper bound of low battery load percentage.
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A battery load percentage below this number is considered low."
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:type 'integer)
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(defcustom battery-load-critical 10
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"Upper bound of critical battery load percentage.
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A battery load percentage below this number is considered critical."
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:type 'integer)
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(defface battery-load-low
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'((t :inherit warning))
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"Face used in mode line string when battery load is low.
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See the option `battery-load-low'."
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:version "28.1")
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(defface battery-load-critical
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'((t :inherit error))
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"Face used in mode line string when battery load is critical.
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See the option `battery-load-critical'."
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:version "28.1")
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(defvar battery-update-timer nil
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"Interval timer object.")
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;;;###autoload
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(defun battery ()
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"Display battery status information in the echo area.
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The text being displayed in the echo area is controlled by the variables
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`battery-echo-area-format' and `battery-status-function'."
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(interactive)
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(message "%s" (if (and battery-echo-area-format battery-status-function)
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(battery-format battery-echo-area-format
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(funcall battery-status-function))
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"Battery status not available")))
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(defcustom battery-update-functions nil
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"Functions run by `display-battery-mode' after updating the status.
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These functions will be called with one parameter, an alist that
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contains data about the current battery status. The keys in the
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alist are single characters and the values are strings.
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Different battery backends deliver different information, so some
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of the following information may or may not be available:
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v: driver-version
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V: bios-version
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I: bios-interface
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L: line-status
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B: battery-status
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b: battery-status-symbol
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p: load-percentage
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s: seconds
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m: minutes
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h: hours
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t: remaining-time
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For instance, to play an alarm when the battery power dips below
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10%, you could use a function like the following:
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(defvar my-prev-battery nil)
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(defun my-battery-alarm (data)
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(when (and my-prev-battery
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(equal (alist-get ?L data) \"off-line\")
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(< (string-to-number (alist-get ?p data)) 10)
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(>= (string-to-number (alist-get ?p my-prev-battery)) 10))
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(play-sound-file \"~/alarm.wav\" 5))
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(setq my-prev-battery data))"
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:version "29.1"
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:type '(repeat function))
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;;;###autoload
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(define-minor-mode display-battery-mode
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"Toggle battery status display in mode line (Display Battery mode).
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The text displayed in the mode line is controlled by
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`battery-mode-line-format' and `battery-status-function'.
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The mode line is be updated every `battery-update-interval'
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seconds.
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The function which updates the mode-line display will call the
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functions in `battery-update-functions', which can be used to
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trigger actions based on battery-related events."
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:global t
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(setq battery-mode-line-string "")
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(or global-mode-string (setq global-mode-string '("")))
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(and battery-update-timer (cancel-timer battery-update-timer))
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(battery--upower-unsubscribe)
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(if (and battery-status-function battery-mode-line-format)
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(if (not display-battery-mode)
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(setq global-mode-string
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(delq 'battery-mode-line-string global-mode-string))
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(add-to-list 'global-mode-string 'battery-mode-line-string t)
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(and (eq battery-status-function #'battery-upower)
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battery-upower-subscribe
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(battery--upower-subscribe))
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(setq battery-update-timer (run-at-time nil battery-update-interval
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#'battery-update-handler))
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(battery-update))
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(message "Battery status not available")
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(setq display-battery-mode nil)))
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(defun battery-update-handler ()
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(battery-update)
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(sit-for 0))
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(defun battery-update ()
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"Update battery status information in the mode line."
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(let* ((data (and battery-status-function (funcall battery-status-function)))
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(percentage (car (read-from-string (cdr (assq ?p data)))))
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(res (and battery-mode-line-format
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(or (not (numberp percentage))
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(<= percentage battery-mode-line-limit))
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(battery-format battery-mode-line-format data)))
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(len (length res)))
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(unless (zerop len)
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(cond ((not (numberp percentage)))
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((< percentage battery-load-critical)
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(add-face-text-property 0 len 'battery-load-critical t res))
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((< percentage battery-load-low)
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(add-face-text-property 0 len 'battery-load-low t res)))
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(put-text-property 0 len 'help-echo "Battery status information" res))
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(setq battery-mode-line-string (or res ""))
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(run-hook-with-args 'battery-update-functions data))
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(force-mode-line-update t))
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;;; `/proc/apm' interface for Linux.
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;; Regular expression matching contents of `/proc/apm'.
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(rx-define battery--linux-proc-apm
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(: bol (group (+ (not ?\s))) ; Driver version.
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" " (group (+ (not ?\s))) ; APM BIOS version.
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" 0x" (group (+ xdigit)) ; APM BIOS flags.
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" 0x" (group (+ xdigit)) ; AC line status.
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" 0x" (group (+ xdigit)) ; Battery status.
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" 0x" (group (+ xdigit)) ; Battery flags.
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" " (group (? ?-) (+ digit)) ?% ; Load percentage.
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" " (group (? ?-) (+ digit)) ; Remaining time.
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" " (group (* nonl)) ; Time unit
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eol))
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(defconst battery-linux-proc-apm-regexp (rx battery--linux-proc-apm)
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"Regular expression matching contents of `/proc/apm'.")
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(make-obsolete-variable 'battery-linux-proc-apm-regexp
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"it is no longer used." "28.1")
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(defun battery-linux-proc-apm ()
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"Get APM status information from Linux (the kernel).
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This function works only with the new `/proc/apm' format introduced
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in Linux version 1.3.58.
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The following %-sequences are provided:
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%v Linux driver version
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%V APM BIOS version
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%I APM BIOS status (verbose)
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%L AC line status (verbose)
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%B Battery status (verbose)
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%b Battery status, empty means high, `-' means low,
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`!' means critical, and `+' means charging
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%p Battery load percentage
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%s Remaining time (to charge or discharge) in seconds
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%m Remaining time (to charge or discharge) in minutes
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%h Remaining time (to charge or discharge) in hours
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%t Remaining time (to charge or discharge) in the form `h:min'"
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(let ( driver-version bios-version bios-interface line-status
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battery-status battery-status-symbol load-percentage
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seconds minutes hours remaining-time tem )
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(with-temp-buffer
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(ignore-errors (insert-file-contents "/proc/apm"))
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(when (re-search-forward (rx battery--linux-proc-apm) nil t)
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(setq driver-version (match-string 1))
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(setq bios-version (match-string 2))
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(setq tem (string-to-number (match-string 3) 16))
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(if (zerop (logand tem 2))
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(setq bios-interface "not supported")
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(setq bios-interface "enabled")
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(cond ((/= (logand tem 16) 0) (setq bios-interface "disabled"))
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((/= (logand tem 32) 0) (setq bios-interface "disengaged")))
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(setq tem (string-to-number (match-string 4) 16))
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(cond ((= tem 0) (setq line-status "off-line"))
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((= tem 1) (setq line-status "on-line"))
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||
((= tem 2) (setq line-status "on backup")))
|
||
(unless (= (string-to-number (match-string 6) 16) 255)
|
||
(setq tem (string-to-number (match-string 5) 16))
|
||
(cond ((= tem 0) (setq battery-status "high"
|
||
battery-status-symbol ""))
|
||
((= tem 1) (setq battery-status "low"
|
||
battery-status-symbol "-"))
|
||
((= tem 2) (setq battery-status "critical"
|
||
battery-status-symbol "!"))
|
||
((= tem 3) (setq battery-status "charging"
|
||
battery-status-symbol "+")))
|
||
(setq load-percentage (match-string 7))
|
||
(setq seconds (string-to-number (match-string 8)))
|
||
(and (string-equal (match-string 9) "min")
|
||
(setq seconds (* 60 seconds)))
|
||
(setq minutes (/ seconds 60)
|
||
hours (/ seconds 3600))
|
||
(setq remaining-time
|
||
(format "%d:%02d" hours (% minutes 60)))))))
|
||
(list (cons ?v (or driver-version "N/A"))
|
||
(cons ?V (or bios-version "N/A"))
|
||
(cons ?I (or bios-interface "N/A"))
|
||
(cons ?L (or line-status "N/A"))
|
||
(cons ?B (or battery-status "N/A"))
|
||
(cons ?b (or battery-status-symbol ""))
|
||
(cons ?p (or load-percentage "N/A"))
|
||
(cons ?s (if seconds (number-to-string seconds) "N/A"))
|
||
(cons ?m (if minutes (number-to-string minutes) "N/A"))
|
||
(cons ?h (if hours (number-to-string hours) "N/A"))
|
||
(cons ?t (or remaining-time "N/A")))))
|
||
|
||
|
||
;;; `/proc/acpi/' interface for Linux.
|
||
|
||
(rx-define battery--acpi-rate (&rest hour)
|
||
(: (group (+ digit)) " " (group ?m (in "AW") hour)))
|
||
(rx-define battery--acpi-capacity (battery--acpi-rate ?h))
|
||
|
||
(defun battery-linux-proc-acpi ()
|
||
"Get ACPI status information from Linux (the kernel).
|
||
This function works only with the `/proc/acpi/' interface
|
||
introduced in Linux version 2.4.20 and 2.6.0.
|
||
|
||
The following %-sequences are provided:
|
||
%c Current capacity (mAh)
|
||
%r Current rate of charge or discharge
|
||
%L AC line status (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status, empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%d Temperature (in degrees Celsius)
|
||
%p Battery load percentage
|
||
%m Remaining time (to charge or discharge) in minutes
|
||
%h Remaining time (to charge or discharge) in hours
|
||
%t Remaining time (to charge or discharge) in the form `h:min'"
|
||
(let ((design-capacity 0)
|
||
(last-full-capacity 0)
|
||
full-capacity
|
||
(warn 0)
|
||
(low 0)
|
||
capacity rate rate-type charging-state minutes hours)
|
||
;; ACPI provides information about each battery present in the system in
|
||
;; a separate subdirectory. We are going to merge the available
|
||
;; information together since displaying for a variable amount of
|
||
;; batteries seems overkill for format-strings.
|
||
(with-temp-buffer
|
||
(dolist (dir (battery--files "/proc/acpi/battery/"))
|
||
(ignore-errors
|
||
(insert-file-contents (expand-file-name "state" dir) nil nil nil t))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward (rx "present:" (+ space) "yes" eol) nil t)
|
||
(and (re-search-forward (rx "charging state:" (+ space)
|
||
(group (not space) (* nonl)) eol)
|
||
nil t)
|
||
(member charging-state '("unknown" "charged" nil))
|
||
;; On most multi-battery systems, most of the time only one
|
||
;; battery is "charging"/"discharging", the others are
|
||
;; "unknown".
|
||
(setq charging-state (match-string 1)))
|
||
(when (re-search-forward (rx "present rate:" (+ space)
|
||
(battery--acpi-rate) eol)
|
||
nil t)
|
||
(setq rate (+ (or rate 0) (string-to-number (match-string 1))))
|
||
(when (> rate 0)
|
||
(cond ((not rate-type)
|
||
(setq rate-type (match-string 2)))
|
||
((not (string= rate-type (match-string 2)))
|
||
(error "Inconsistent rate types (%s vs. %s)"
|
||
rate-type (match-string 2))))))
|
||
(when (re-search-forward (rx "remaining capacity:" (+ space)
|
||
battery--acpi-capacity eol)
|
||
nil t)
|
||
(setq capacity
|
||
(+ (or capacity 0) (string-to-number (match-string 1))))))
|
||
(goto-char (point-max))
|
||
(ignore-errors (insert-file-contents (expand-file-name "info" dir)))
|
||
(when (re-search-forward (rx "present:" (+ space) "yes" eol) nil t)
|
||
(when (re-search-forward (rx "design capacity:" (+ space)
|
||
battery--acpi-capacity eol)
|
||
nil t)
|
||
(cl-incf design-capacity (string-to-number (match-string 1))))
|
||
(when (re-search-forward (rx "last full capacity:" (+ space)
|
||
battery--acpi-capacity eol)
|
||
nil t)
|
||
(cl-incf last-full-capacity (string-to-number (match-string 1))))
|
||
(when (re-search-forward (rx "design capacity warning:" (+ space)
|
||
battery--acpi-capacity eol)
|
||
nil t)
|
||
(cl-incf warn (string-to-number (match-string 1))))
|
||
(when (re-search-forward (rx "design capacity low:" (+ space)
|
||
battery--acpi-capacity eol)
|
||
nil t)
|
||
(cl-incf low (string-to-number (match-string 1)))))))
|
||
(setq full-capacity (if (> last-full-capacity 0)
|
||
last-full-capacity design-capacity))
|
||
(and capacity rate
|
||
(setq minutes (if (zerop rate) 0
|
||
(floor (* (if (string= charging-state
|
||
"charging")
|
||
(- full-capacity capacity)
|
||
capacity)
|
||
60)
|
||
rate))
|
||
hours (/ minutes 60)))
|
||
(list (cons ?c (if capacity (number-to-string capacity) "N/A"))
|
||
(cons ?L (or (battery-search-for-one-match-in-files
|
||
(mapcar (lambda (d) (expand-file-name "state" d))
|
||
(battery--files "/proc/acpi/ac_adapter/"))
|
||
(rx "state:" (+ space) (group (not space) (* nonl)) eol)
|
||
1)
|
||
"N/A"))
|
||
(cons ?d (or (battery-search-for-one-match-in-files
|
||
(mapcar (lambda (d) (expand-file-name "temperature" d))
|
||
(battery--files "/proc/acpi/thermal_zone/"))
|
||
(rx "temperature:" (+ space) (group (+ digit)) " C" eol)
|
||
1)
|
||
"N/A"))
|
||
(cons ?r (if rate
|
||
(concat (number-to-string rate) " " rate-type)
|
||
"N/A"))
|
||
(cons ?B (or charging-state "N/A"))
|
||
(cons ?b (cond ((string= charging-state "charging") "+")
|
||
((and capacity (< capacity low)) "!")
|
||
((and capacity (< capacity warn)) "-")
|
||
("")))
|
||
(cons ?h (if hours (number-to-string hours) "N/A"))
|
||
(cons ?m (if minutes (number-to-string minutes) "N/A"))
|
||
(cons ?t (if minutes (format "%d:%02d" hours (% minutes 60)) "N/A"))
|
||
(cons ?p (if (and full-capacity capacity (> full-capacity 0))
|
||
(number-to-string (floor (* 100 capacity) full-capacity))
|
||
"N/A")))))
|
||
|
||
|
||
;;; `/sys/class/power_supply/BATN' interface for Linux.
|
||
|
||
(defun battery-linux-sysfs ()
|
||
"Get sysfs status information from Linux kernel.
|
||
This function works only with the new `/sys/class/power_supply/'
|
||
interface introduced in Linux version 2.4.25.
|
||
|
||
The following %-sequences are provided:
|
||
%c Current capacity (mAh or mWh)
|
||
%r Current rate of charge or discharge
|
||
%L Power source (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status, empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%d Temperature (in degrees Celsius)
|
||
%p Battery load percentage
|
||
%m Remaining time (to charge or discharge) in minutes
|
||
%h Remaining time (to charge or discharge) in hours
|
||
%t Remaining time (to charge or discharge) in the form `h:min'"
|
||
(let (;; Some batteries report charges and current, others energy and power.
|
||
;; In order to reliably be able to combine those data, we convert them
|
||
;; all to energy/power (since we can't combine different charges if
|
||
;; they're not at the same voltage).
|
||
(energy-full 0.0)
|
||
(energy-now 0.0)
|
||
(power-now 0.0)
|
||
(voltage-now 10.8) ; Arbitrary default, in case the info is missing.
|
||
charging-state temperature hours percentage-now)
|
||
;; SysFS provides information about each battery present in the
|
||
;; system in a separate subdirectory. We are going to merge the
|
||
;; available information together.
|
||
(with-temp-buffer
|
||
(dolist (dir (battery--find-linux-sysfs-batteries))
|
||
(ignore-errors
|
||
(insert-file-contents (expand-file-name "uevent" dir) nil nil nil t))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward
|
||
"POWER_SUPPLY_VOLTAGE_NOW=\\([0-9]*\\)$" nil t)
|
||
(setq voltage-now (/ (string-to-number (match-string 1)) 1000000.0)))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward "POWER_SUPPLY_PRESENT=1$" nil t)
|
||
(goto-char (point-min))
|
||
(and (re-search-forward "POWER_SUPPLY_STATUS=\\(.*\\)$" nil t)
|
||
(member charging-state '("Unknown" "Full" nil))
|
||
(setq charging-state (match-string 1)))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward
|
||
"POWER_SUPPLY_\\(CURRENT\\|POWER\\)_NOW=\\([0-9]*\\)$"
|
||
nil t)
|
||
(cl-incf power-now
|
||
(* (string-to-number (match-string 2))
|
||
(if (eq (char-after (match-beginning 1)) ?C)
|
||
voltage-now 1))))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward "POWER_SUPPLY_TEMP=\\([0-9]*\\)$" nil t)
|
||
(setq temperature (match-string 1)))
|
||
(goto-char (point-min))
|
||
(let (full-string now-string)
|
||
;; Sysfs may list either charge (mAh) or energy (mWh).
|
||
;; Keep track of both, and choose which to report later.
|
||
(cond ((and (re-search-forward
|
||
"POWER_SUPPLY_CHARGE_FULL=\\([0-9]*\\)$" nil t)
|
||
(setq full-string (match-string 1))
|
||
(re-search-forward
|
||
"POWER_SUPPLY_CHARGE_NOW=\\([0-9]*\\)$" nil t)
|
||
(setq now-string (match-string 1)))
|
||
(cl-incf energy-full (* (string-to-number full-string)
|
||
voltage-now))
|
||
(cl-incf energy-now (* (string-to-number now-string)
|
||
voltage-now)))
|
||
((and (goto-char (point-min))
|
||
(re-search-forward
|
||
"POWER_SUPPLY_ENERGY_FULL=\\([0-9]*\\)$" nil t)
|
||
(setq full-string (match-string 1))
|
||
(re-search-forward
|
||
"POWER_SUPPLY_ENERGY_NOW=\\([0-9]*\\)$" nil t)
|
||
(setq now-string (match-string 1)))
|
||
(cl-incf energy-full (string-to-number full-string))
|
||
(cl-incf energy-now (string-to-number now-string)))))
|
||
(unless (zerop power-now)
|
||
(let ((remaining (if (string= charging-state "Discharging")
|
||
energy-now
|
||
(- energy-full energy-now))))
|
||
(setq hours (/ remaining power-now)))))))
|
||
(when (and (> energy-full 0) (> energy-now 0))
|
||
(setq percentage-now (/ (* 100 energy-now) energy-full)))
|
||
(list (cons ?c (if (or (> energy-full 0) (> energy-now 0))
|
||
(number-to-string (/ energy-now voltage-now))
|
||
"N/A"))
|
||
(cons ?r (if (> power-now 0.0)
|
||
(format "%.1f" (/ power-now 1000000.0))
|
||
"N/A"))
|
||
(cons ?m (if hours (format "%d" (* hours 60)) "N/A"))
|
||
(cons ?h (if hours (format "%d" hours) "N/A"))
|
||
(cons ?t (if hours
|
||
(format "%d:%02d" hours (* (- hours (floor hours)) 60))
|
||
"N/A"))
|
||
(cons ?d (or temperature "N/A"))
|
||
(cons ?B (or charging-state "N/A"))
|
||
(cons ?b (cond ((string= charging-state "Charging") "+")
|
||
((not percentage-now) "")
|
||
((< percentage-now battery-load-critical) "!")
|
||
((< percentage-now battery-load-low) "-")
|
||
("")))
|
||
(cons ?p (if percentage-now (format "%.1f" percentage-now) "N/A"))
|
||
(cons ?L (pcase (battery-search-for-one-match-in-files
|
||
'("/sys/class/power_supply/AC/online"
|
||
"/sys/class/power_supply/ACAD/online"
|
||
"/sys/class/power_supply/ADP1/online")
|
||
(rx (in "01")) 0)
|
||
("0" "BAT")
|
||
("1" "AC")
|
||
(_ "N/A"))))))
|
||
|
||
|
||
;;; `/dev/power/acpi_battery' interface for Haiku.
|
||
|
||
(defun battery--search-haiku-acpi-status ()
|
||
"Search forward for battery status in the current buffer.
|
||
Return a property list once all relevant properties are found.
|
||
The following properties may be inside the list:
|
||
|
||
- `:capacity' (the current capacity of the battery.)
|
||
- `:voltage' (the current voltage of the battery.)
|
||
- `:rate', (the current rate of charge or discharge.)
|
||
- `:state' (the current state of the battery.)
|
||
- `:design-capacity' (the design capacity of the battery.)
|
||
- `:design-voltage' (the design voltage of the battery.)
|
||
- `:last-full-charge' (the capacity at the last full charge of
|
||
the battery.)
|
||
|
||
`:capacity' and `:design-capacity' are both represented in
|
||
terms of milliamp-hours."
|
||
(let ((state-regexp "State \\([[:digit:]]+\\), Current Rate \\([[:digit:]]+\\), \
|
||
Capacity \\([[:digit:]]+\\), Voltage \\([[:digit:]]+\\)")
|
||
(pu-regexp "Power Unit \\([[:digit:]]\\)+, Design Capacity \\([[:digit:]]+\\), \
|
||
Last Full Charge \\([[:digit:]]+\\)")
|
||
(design-regexp "Design Voltage \\([[:digit:]]+\\)")
|
||
power-unit last-full-charge state rate capacity
|
||
voltage design-capacity design-voltage)
|
||
(when (re-search-forward state-regexp)
|
||
(setq state (string-to-number (match-string 1)))
|
||
(setq rate (string-to-number (match-string 2)))
|
||
(setq capacity (string-to-number (match-string 3)))
|
||
(setq voltage (/ (string-to-number (match-string 4)) 1000.0)))
|
||
(when (re-search-forward pu-regexp)
|
||
(setq power-unit (string-to-number (match-string 1)))
|
||
(setq design-capacity (string-to-number (match-string 2)))
|
||
(setq last-full-charge (string-to-number (match-string 3))))
|
||
(when (re-search-forward design-regexp)
|
||
(setq design-voltage (/ (string-to-number (match-string 1)) 1000.0)))
|
||
;; Convert capacity fields to milliamp-hours if they're
|
||
;; specified as miliwatt-hours.
|
||
(when (eq power-unit 0)
|
||
(setq capacity (/ capacity voltage))
|
||
(setq design-capacity (/ design-capacity design-voltage))
|
||
(setq last-full-charge (/ last-full-charge voltage)))
|
||
(list :capacity capacity :voltage voltage
|
||
:rate rate :state (cond
|
||
((not (zerop (logand state 2))) 'charging)
|
||
((not (zerop (logand state 1))) 'discharging)
|
||
((not (zerop (logand state 4))) 'critical)
|
||
(t 'fully-charged))
|
||
:design-capacity design-capacity
|
||
:design-voltage design-voltage
|
||
:last-full-charge last-full-charge)))
|
||
|
||
(defun battery-haiku-acpi-battery ()
|
||
"Get battery status from `/dev/power/acpi_battery'.
|
||
This function only works on Haiku systems with an ACPI battery.
|
||
|
||
The following %-sequences are provided:
|
||
%c Current capacity (mAh)
|
||
%r Current rate of charge or discharge
|
||
%L AC line status (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status: empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%p Battery load percentage"
|
||
(with-temp-buffer
|
||
(dolist (file (battery--files "/dev/power/acpi_battery"))
|
||
(insert-file-contents (expand-file-name file "/dev/power/acpi_battery")))
|
||
;; I don't think Haiku actually supports multiple batteries yet,
|
||
;; since the code in PowerStatus doesn't take care of that
|
||
;; situation.
|
||
(let ((list (ignore-errors (battery--search-haiku-acpi-status))))
|
||
(if list
|
||
(list (cons ?c (format "%.0f" (plist-get list :capacity)))
|
||
(cons ?r (format "%.0f" (plist-get list :rate)))
|
||
(cons ?B (symbol-name (plist-get list :state)))
|
||
(cons ?b (let ((state (plist-get list :state)))
|
||
(cond
|
||
((eq state 'charging) "+")
|
||
((and (eq state 'discharging)
|
||
(< (/ (plist-get list :capacity)
|
||
(plist-get list :last-full-charge))
|
||
0.15))
|
||
"-")
|
||
((eq state 'critical) "!")
|
||
(t ""))))
|
||
(cons ?L (if (not (eq (plist-get list :state) 'discharging))
|
||
"on-line" "off-line"))
|
||
(cons ?p (format "%.0f"
|
||
(* 100 (/ (plist-get list :capacity)
|
||
(plist-get list :last-full-charge))))))
|
||
'((?c . "N/A")
|
||
(?r . "N/A")
|
||
(?B . "N/A")
|
||
(?b . "N/A")
|
||
(?p . "N/A"))))))
|
||
|
||
|
||
;;; UPower interface.
|
||
|
||
(defconst battery-upower-interface "org.freedesktop.UPower"
|
||
"Name of the UPower D-Bus interface.
|
||
See URL `https://upower.freedesktop.org/docs/UPower.html'.")
|
||
|
||
(defconst battery-upower-path "/org/freedesktop/UPower"
|
||
"D-Bus object providing `battery-upower-interface'.")
|
||
|
||
(defconst battery-upower-device-interface "org.freedesktop.UPower.Device"
|
||
"Name of the UPower Device D-Bus interface.
|
||
See URL `https://upower.freedesktop.org/docs/Device.html'.")
|
||
|
||
(defconst battery-upower-device-path "/org/freedesktop/UPower/devices"
|
||
"D-Bus object providing `battery-upower-device-interface'.")
|
||
|
||
(defvar battery--upower-signals nil
|
||
"Handles for UPower signal subscriptions.")
|
||
|
||
(defun battery--upower-signal-handler (&rest _)
|
||
"Update battery status on receiving a UPower D-Bus signal."
|
||
(timer-event-handler battery-update-timer))
|
||
|
||
(defun battery--upower-props-changed (_interface changed _invalidated)
|
||
"Update status when system starts/stops running on battery.
|
||
Intended as a UPower PropertiesChanged signal handler."
|
||
(when (assoc "OnBattery" changed)
|
||
(battery--upower-signal-handler)))
|
||
|
||
(defun battery--upower-unsubscribe ()
|
||
"Unsubscribe from UPower device change signals."
|
||
(mapc #'dbus-unregister-object battery--upower-signals)
|
||
(setq battery--upower-signals ()))
|
||
|
||
(defun battery--upower-subscribe ()
|
||
"Subscribe to UPower device change signals."
|
||
(push (dbus-register-signal :system battery-upower-service
|
||
battery-upower-path
|
||
dbus-interface-properties
|
||
"PropertiesChanged"
|
||
#'battery--upower-props-changed)
|
||
battery--upower-signals)
|
||
(dolist (method '("DeviceAdded" "DeviceRemoved"))
|
||
(push (dbus-register-signal :system battery-upower-service
|
||
battery-upower-path
|
||
battery-upower-interface
|
||
method #'battery--upower-signal-handler)
|
||
battery--upower-signals)))
|
||
|
||
(defun battery--upower-device-properties (device)
|
||
"Return value for all available properties for the UPower DEVICE."
|
||
(dbus-get-all-properties
|
||
:system battery-upower-service
|
||
(expand-file-name device battery-upower-device-path)
|
||
battery-upower-device-interface))
|
||
|
||
(defun battery--upower-devices ()
|
||
"List all UPower devices according to `battery-upower-device'."
|
||
(cond ((stringp battery-upower-device)
|
||
(list battery-upower-device))
|
||
(battery-upower-device)
|
||
((dbus-ignore-errors
|
||
(dbus-call-method :system battery-upower-service
|
||
battery-upower-path
|
||
battery-upower-interface
|
||
"EnumerateDevices"
|
||
:timeout 1000)))))
|
||
|
||
(defun battery--upower-state (props state)
|
||
"Merge the UPower battery state in PROPS with STATE.
|
||
This is an extension of the UPower DisplayDevice algorithm for
|
||
merging multiple battery states into one. PROPS is an alist of
|
||
battery properties from `battery-upower-device-interface', and
|
||
STATE is a symbol representing the state to merge with."
|
||
;; Map UPower enum into our printable symbols.
|
||
(let* ((new (pcase (cdr (assoc "State" props))
|
||
(1 'charging)
|
||
(2 'discharging)
|
||
(3 'empty)
|
||
(4 'fully-charged)
|
||
(5 'pending-charge)
|
||
(6 'pending-discharge)))
|
||
;; Unknown state represented by nil.
|
||
(either (delq nil (list new state))))
|
||
;; Earlier states override later ones.
|
||
(car (cond ((memq 'charging either))
|
||
((memq 'discharging either))
|
||
((memq 'pending-charge either))
|
||
((memq 'pending-discharge either))
|
||
;; Only options left are full or empty,
|
||
;; but if they conflict return nil.
|
||
((null (cdr either)) either)
|
||
((apply #'eq either) either)))))
|
||
|
||
(defun battery-upower ()
|
||
"Get battery status from UPower D-Bus interface.
|
||
This function works only in systems that provide a UPower D-Bus
|
||
service.
|
||
|
||
The following %-sequences are provided:
|
||
%c Current capacity (mWh)
|
||
%r Current rate of charge or discharge
|
||
%L AC line status (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status: empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%d Temperature (in degrees Celsius)
|
||
%p Battery load percentage
|
||
%s Remaining time (to charge or discharge) in seconds
|
||
%m Remaining time (to charge or discharge) in minutes
|
||
%h Remaining time (to charge or discharge) in hours
|
||
%t Remaining time (to charge or discharge) in the form `h:min'"
|
||
(let ((count 0) props type line-status state load temperature
|
||
secs mins hrs total-energy total-rate total-tte total-ttf)
|
||
;; Merge information from all available or specified UPower
|
||
;; devices like other `battery-status-function's.
|
||
(dolist (device (battery--upower-devices))
|
||
(setq props (battery--upower-device-properties device))
|
||
(setq type (cdr (assoc "Type" props)))
|
||
(cond
|
||
((and (eq type 1) (not (eq line-status 'online)))
|
||
;; It's a line power device: `online' if currently providing
|
||
;; power, any other non-nil value if simply present.
|
||
(setq line-status (if (cdr (assoc "Online" props)) 'online t)))
|
||
((and (eq type 2) (cdr (assoc "IsPresent" props)))
|
||
;; It's a battery.
|
||
(setq count (1+ count))
|
||
(setq state (battery--upower-state props state))
|
||
(let ((energy (cdr (assoc "Energy" props)))
|
||
(rate (cdr (assoc "EnergyRate" props)))
|
||
(percent (cdr (assoc "Percentage" props)))
|
||
(temp (cdr (assoc "Temperature" props)))
|
||
(tte (cdr (assoc "TimeToEmpty" props)))
|
||
(ttf (cdr (assoc "TimeToFull" props))))
|
||
(when energy (setq total-energy (+ (or total-energy 0) energy)))
|
||
(when rate (setq total-rate (+ (or total-rate 0) rate)))
|
||
(when percent (setq load (+ (or load 0) percent)))
|
||
(when temp (setq temperature (+ (or temperature 0) temp)))
|
||
(when tte (setq total-tte (+ (or total-tte 0) tte)))
|
||
(when ttf (setq total-ttf (+ (or total-ttf 0) ttf)))))))
|
||
(when (> count 1)
|
||
;; Averages over multiple batteries.
|
||
(when load (setq load (/ load count)))
|
||
(when temperature (setq temperature (/ temperature count))))
|
||
(when (setq secs (if (eq line-status 'online) total-ttf total-tte))
|
||
(setq mins (/ secs 60))
|
||
(setq hrs (/ secs 3600)))
|
||
(list (cons ?c (if total-energy
|
||
(format "%.0f" (* total-energy 1000))
|
||
"N/A"))
|
||
(cons ?r (if total-rate (format "%.1f W" total-rate) "N/A"))
|
||
(cons ?L (cond ((eq line-status 'online) "on-line")
|
||
(line-status "off-line")
|
||
("N/A")))
|
||
(cons ?B (format "%s" (or state 'unknown)))
|
||
(cons ?b (cond ((eq state 'charging) "+")
|
||
((and load (< load battery-load-critical)) "!")
|
||
((and load (< load battery-load-low)) "-")
|
||
("")))
|
||
;; Zero usually means unknown.
|
||
(cons ?d (if (and temperature (/= temperature 0))
|
||
(format "%.0f" temperature)
|
||
"N/A"))
|
||
(cons ?p (if load (format "%.0f" load) "N/A"))
|
||
(cons ?s (if secs (number-to-string secs) "N/A"))
|
||
(cons ?m (if mins (number-to-string mins) "N/A"))
|
||
(cons ?h (if hrs (number-to-string hrs) "N/A"))
|
||
(cons ?t (if hrs (format "%d:%02d" hrs (% mins 60)) "N/A")))))
|
||
|
||
|
||
;;; `apm' interface for BSD.
|
||
|
||
;; This function is a wrapper on `call-process' that return the
|
||
;; standard output in a string. We are using it instead
|
||
;; `shell-command-to-string' because this last one is trying to run
|
||
;; PROGRAM on the remote host if the buffer is remote.
|
||
(defun battery--call-process-to-string (program &rest args)
|
||
(with-output-to-string
|
||
(with-current-buffer standard-output
|
||
(apply #'call-process program nil t nil args))))
|
||
|
||
(defun battery-bsd-apm ()
|
||
"Get APM status information from BSD apm binary.
|
||
The following %-sequences are provided:
|
||
%P Advanced power saving mode state (verbose)
|
||
%L AC line status (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status, empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%p Battery load percentage
|
||
%s Remaining time (to charge or discharge) in seconds
|
||
%m Remaining time (to charge or discharge) in minutes
|
||
%h Remaining time (to charge or discharge) in hours
|
||
%t Remaining time (to charge or discharge) in the form `h:min'"
|
||
(let* ((os-name (car (split-string
|
||
;; FIXME: Can't we use something like `system-type'?
|
||
(battery--call-process-to-string "uname"))))
|
||
(apm-flag (pcase os-name
|
||
("OpenBSD" "mP")
|
||
("FreeBSD" "st")
|
||
(_ "ms")))
|
||
(apm-args (concat "-abl" apm-flag))
|
||
(apm-output (split-string
|
||
(battery--call-process-to-string "apm" apm-args)))
|
||
(indices (pcase os-name
|
||
;; FreeBSD's manpage documents that multiple
|
||
;; outputs are ordered by "the order in which
|
||
;; they're listed in the manpage", which is alphabetical
|
||
;; and is also the order in which we pass them.
|
||
("FreeBSD" '((ac . 0)
|
||
(battery-status . 1)
|
||
(battery-percent . 2)
|
||
(apm-mode . 3)
|
||
(battery-life . 4)))
|
||
;; For NetBSD and OpenBSD, the manpage doesn't document
|
||
;; the order. The previous code used this order, so let's
|
||
;; assume it's right.
|
||
(_ '((ac . 3)
|
||
(battery-status . 0)
|
||
(battery-percent . 1)
|
||
(apm-mode . 4)
|
||
(battery-life . 2)))))
|
||
;; Battery status
|
||
(battery-status
|
||
(pcase (string-to-number
|
||
(nth (alist-get 'battery-status indices) apm-output))
|
||
(0 '("high" . ""))
|
||
(1 '("low" . "-"))
|
||
(2 '("critical" . "!"))
|
||
(3 '("charging" . "+"))
|
||
(4 '("absent" . nil))))
|
||
;; Battery percentage
|
||
(battery-percentage
|
||
(nth (alist-get 'battery-percent indices) apm-output))
|
||
;; Battery life
|
||
(battery-life (nth (alist-get 'battery-life indices) apm-output))
|
||
;; AC status
|
||
(line-status
|
||
(pcase (string-to-number (nth (alist-get 'ac indices) apm-output))
|
||
(0 "disconnected")
|
||
(1 "connected")
|
||
(2 "backup power")))
|
||
;; Advanced power savings mode
|
||
(apm-mode
|
||
(let ((apm (string-to-number
|
||
(nth (alist-get 'apm-mode indices) apm-output))))
|
||
(if (string= os-name "OpenBSD")
|
||
(pcase apm
|
||
(0 "manual")
|
||
(1 "automatic")
|
||
(2 "cool running"))
|
||
(if (eql apm 1) "on" "off"))))
|
||
seconds minutes hours remaining-time)
|
||
(unless (member battery-life '("unknown" "-1"))
|
||
(if (member os-name '("OpenBSD" "NetBSD"))
|
||
(setq minutes (string-to-number battery-life)
|
||
seconds (* 60 minutes))
|
||
(setq seconds (string-to-number battery-life)
|
||
minutes (truncate seconds 60)))
|
||
(setq hours (truncate minutes 60)
|
||
remaining-time (format "%d:%02d" hours (% minutes 60))))
|
||
(list (cons ?L (or line-status "N/A"))
|
||
(cons ?B (or (car battery-status) "N/A"))
|
||
(cons ?b (or (cdr battery-status) "N/A"))
|
||
(cons ?p (if (string= battery-percentage "255")
|
||
"N/A"
|
||
battery-percentage))
|
||
(cons ?P (or apm-mode "N/A"))
|
||
(cons ?s (if seconds (number-to-string seconds) "N/A"))
|
||
(cons ?m (if minutes (number-to-string minutes) "N/A"))
|
||
(cons ?h (if hours (number-to-string hours) "N/A"))
|
||
(cons ?t (or remaining-time "N/A")))))
|
||
|
||
|
||
;;; `pmset' interface for Darwin (macOS).
|
||
|
||
(defun battery-pmset ()
|
||
"Get battery status information using `pmset'.
|
||
|
||
The following %-sequences are provided:
|
||
%L Power source (verbose)
|
||
%B Battery status (verbose)
|
||
%b Battery status, empty means high, `-' means low,
|
||
`!' means critical, and `+' means charging
|
||
%p Battery load percentage
|
||
%m Remaining time (to charge or discharge) in minutes
|
||
%h Remaining time (to charge or discharge) in hours
|
||
%t Remaining time (to charge or discharge) in the form `h:min'"
|
||
(let ( power-source load-percentage battery-status battery-status-symbol
|
||
remaining-time hours minutes )
|
||
(with-temp-buffer
|
||
(ignore-errors (call-process "pmset" nil t nil "-g" "ps"))
|
||
(goto-char (point-min))
|
||
(when (re-search-forward ;; Handle old typo in output.
|
||
"\\(?:Currentl?y\\|Now\\) drawing from '\\(AC\\|Battery\\) Power'"
|
||
nil t)
|
||
(setq power-source (match-string 1))
|
||
(when (re-search-forward (rx bol " -InternalBattery-0" (+ space)
|
||
(* "(id=" (+ digit) ")" (+ space)))
|
||
nil t)
|
||
(when (looking-at "\\([0-9]\\{1,3\\}\\)%")
|
||
(setq load-percentage (match-string 1))
|
||
(goto-char (match-end 0))
|
||
(cond ((looking-at-p "; charging")
|
||
(setq battery-status "charging"
|
||
battery-status-symbol "+"))
|
||
((< (string-to-number load-percentage) battery-load-critical)
|
||
(setq battery-status "critical"
|
||
battery-status-symbol "!"))
|
||
((< (string-to-number load-percentage) battery-load-low)
|
||
(setq battery-status "low"
|
||
battery-status-symbol "-"))
|
||
(t
|
||
(setq battery-status "high"
|
||
battery-status-symbol "")))
|
||
(when (re-search-forward "\\(\\([0-9]+\\):\\([0-9]+\\)\\) remaining" nil t)
|
||
(setq remaining-time (match-string 1))
|
||
(let ((h (string-to-number (match-string 2)))
|
||
(m (string-to-number (match-string 3))))
|
||
(setq hours (number-to-string (+ h (if (< m 30) 0 1)))
|
||
minutes (number-to-string (+ (* h 60) m)))))))))
|
||
(list (cons ?L (or power-source "N/A"))
|
||
(cons ?p (or load-percentage "N/A"))
|
||
(cons ?B (or battery-status "N/A"))
|
||
(cons ?b (or battery-status-symbol ""))
|
||
(cons ?h (or hours "N/A"))
|
||
(cons ?m (or minutes "N/A"))
|
||
(cons ?t (or remaining-time "N/A")))))
|
||
|
||
|
||
;;; `BatteryManager' interface for Android.
|
||
|
||
(declare-function android-query-battery "androidfns.c")
|
||
|
||
(defun battery-android ()
|
||
"Get battery status information using Android.
|
||
|
||
The following %-sequences are provided:
|
||
%c Current capacity (mAh)
|
||
%r Current rate of charge or discharge (mA)
|
||
%L AC line status (verbose).
|
||
%B Battery status (verbose)
|
||
%b Battery status, empty means high, `-' means low,
|
||
`+' means charging and `?' means unknown.
|
||
%d Temperature (in degrees Celsius)
|
||
%p Battery load percentage.
|
||
%m Remaining time (to charge) in minutes.
|
||
%h Remaining time (to charge) in hours.
|
||
%t Remaining time (to charge) in the form `h:min'."
|
||
(when-let* ((status (android-query-battery)))
|
||
(let* ((percentage nil)
|
||
(capacity nil)
|
||
(sym-status nil)
|
||
(symbol nil)
|
||
(rate nil)
|
||
(remaining nil)
|
||
(hours nil)
|
||
(minutes nil))
|
||
;; Figure out the percentage.
|
||
(setq percentage (number-to-string (car status)))
|
||
;; Figure out the capacity
|
||
(setq capacity (number-to-string (/ (cadr status) 1000)))
|
||
;; Figure out the battery status.
|
||
(let ((percentage (car status)))
|
||
(cl-ecase (nth 4 status)
|
||
(2 (setq sym-status "charging" symbol "+"))
|
||
(3 (setq sym-status "discharging"
|
||
symbol (if (< percentage 15) "-" " ")))
|
||
(5 (setq sym-status "full" symbol " "))
|
||
(4 (setq sym-status "not charging"
|
||
symbol (if (< percentage 15) "-" " ")))
|
||
(1 (setq sym-status "unknown" symbol "?"))))
|
||
;; Figure out the rate of charge.
|
||
(setq rate (/ (nth 3 status) 1000))
|
||
;; Figure out the remaining time.
|
||
(let* ((time (nth 5 status))
|
||
(mins (/ time (* 1000 60)))
|
||
(hours-left (/ mins 60))
|
||
(mins (mod mins 60)))
|
||
(unless (eq time -1)
|
||
(setq remaining (format "%d:%d" hours-left mins)
|
||
hours (number-to-string hours-left)
|
||
minutes (number-to-string mins))))
|
||
;; Return results.
|
||
(list (cons ?c capacity)
|
||
(cons ?p percentage)
|
||
(cons ?r rate)
|
||
(cons ?B sym-status)
|
||
(cons ?b symbol)
|
||
(cons ?m (or minutes "N/A"))
|
||
(cons ?h (or hours "N/A"))
|
||
(cons ?t (or remaining "N/A"))
|
||
(cons ?L (cl-case (nth 6 status)
|
||
(0 "off-line")
|
||
(1 "on-line")
|
||
(2 "on-line (dock)")
|
||
(3 "on-line (USB)")
|
||
(4 "on-line (wireless)")
|
||
(t "unknown")))
|
||
(cons ?t (/ (or (nth 7 status) 0) 10.0))))))
|
||
|
||
|
||
;;; Private functions.
|
||
|
||
(defun battery-format (format alist)
|
||
"Substitute %-sequences in FORMAT."
|
||
(format-spec format alist 'delete))
|
||
|
||
(defun battery-search-for-one-match-in-files (files regexp match-num)
|
||
"Search REGEXP in the content of the files listed in FILES.
|
||
If a match occurred, return the parenthesized expression numbered by
|
||
MATCH-NUM in the match. Otherwise, return nil."
|
||
(with-temp-buffer
|
||
(catch 'found
|
||
(dolist (file files)
|
||
(and (ignore-errors (insert-file-contents file nil nil nil 'replace))
|
||
(re-search-forward regexp nil t)
|
||
(throw 'found (match-string match-num)))))))
|
||
|
||
|
||
(provide 'battery)
|
||
|
||
;;; battery.el ends here
|