2008-03-25 21:50:45 +00:00
|
|
|
|
;;; battery.el --- display battery status information -*- coding: iso-8859-1 -*-
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2011-01-25 04:08:28 +00:00
|
|
|
|
;; Copyright (C) 1997-1998, 2000-2011 Free Software Foundation, Inc.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2000-07-07 13:01:49 +00:00
|
|
|
|
;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
|
1998-02-25 22:44:24 +00:00
|
|
|
|
;; Keywords: hardware
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
1997-07-09 00:29:46 +00:00
|
|
|
|
;; This file is part of GNU Emacs.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2008-05-06 08:06:51 +00:00
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
1997-06-22 20:08:32 +00:00
|
|
|
|
;; it under the terms of the GNU General Public License as published by
|
2008-05-06 08:06:51 +00:00
|
|
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
|
|
|
;; (at your option) any later version.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
1997-07-09 00:29:46 +00:00
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
1997-06-22 20:08:32 +00:00
|
|
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
;; GNU General Public License for more details.
|
|
|
|
|
|
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
2008-05-06 08:06:51 +00:00
|
|
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
;;; Commentary:
|
|
|
|
|
|
2008-04-29 00:59:37 +00:00
|
|
|
|
;; There is at present support for GNU/Linux, OS X and Windows. This
|
|
|
|
|
;; library supports both the `/proc/apm' file format of Linux version
|
|
|
|
|
;; 1.3.58 or newer and the `/proc/acpi/' directory structure of Linux
|
|
|
|
|
;; 2.4.20 and 2.6. Darwin (OS X) is supported by using the `pmset'
|
|
|
|
|
;; program. Windows is supported by the GetSystemPowerStatus API call.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
;;; Code:
|
|
|
|
|
|
|
|
|
|
(require 'timer)
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(eval-when-compile (require 'cl))
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
|
1998-03-07 18:19:38 +00:00
|
|
|
|
(defgroup battery nil
|
|
|
|
|
"Display battery status information."
|
|
|
|
|
:prefix "battery-"
|
|
|
|
|
:group 'hardware)
|
|
|
|
|
|
|
|
|
|
(defcustom battery-status-function
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(cond ((and (eq system-type 'gnu/linux)
|
|
|
|
|
(file-readable-p "/proc/apm"))
|
2003-09-06 19:28:08 +00:00
|
|
|
|
'battery-linux-proc-apm)
|
|
|
|
|
((and (eq system-type 'gnu/linux)
|
|
|
|
|
(file-directory-p "/proc/acpi/battery"))
|
2005-07-05 08:14:42 +00:00
|
|
|
|
'battery-linux-proc-acpi)
|
2008-08-08 17:46:49 +00:00
|
|
|
|
((and (eq system-type 'gnu/linux)
|
|
|
|
|
(file-directory-p "/sys/class/power_supply/")
|
|
|
|
|
(directory-files "/sys/class/power_supply/" nil "BAT[0-9]$"))
|
|
|
|
|
'battery-linux-sysfs)
|
2005-07-05 08:14:42 +00:00
|
|
|
|
((and (eq system-type 'darwin)
|
2006-11-05 13:22:30 +00:00
|
|
|
|
(condition-case nil
|
|
|
|
|
(with-temp-buffer
|
2005-08-11 13:28:47 +00:00
|
|
|
|
(and (eq (call-process "pmset" nil t nil "-g" "ps") 0)
|
|
|
|
|
(> (buffer-size) 0)))
|
|
|
|
|
(error nil)))
|
2008-04-29 00:59:37 +00:00
|
|
|
|
'battery-pmset)
|
|
|
|
|
((eq system-type 'windows-nt)
|
|
|
|
|
'w32-battery-status))
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Function for getting battery status information.
|
2001-02-15 00:10:06 +00:00
|
|
|
|
The function has to return an alist of conversion definitions.
|
|
|
|
|
Its cons cells are of the form
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
(CONVERSION . REPLACEMENT-TEXT)
|
|
|
|
|
|
|
|
|
|
CONVERSION is the character code of a \"conversion specification\"
|
1998-03-07 18:19:38 +00:00
|
|
|
|
introduced by a `%' character in a control string."
|
2001-02-15 00:10:06 +00:00
|
|
|
|
:type '(choice (const nil) function)
|
1998-03-07 18:19:38 +00:00
|
|
|
|
:group 'battery)
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
1998-03-07 18:19:38 +00:00
|
|
|
|
(defcustom battery-echo-area-format
|
2008-04-29 00:59:37 +00:00
|
|
|
|
(cond ((eq battery-status-function 'battery-linux-proc-acpi)
|
2005-07-05 08:14:42 +00:00
|
|
|
|
"Power %L, battery %B at %r (%p%% load, remaining time %t)")
|
2008-08-08 17:46:49 +00:00
|
|
|
|
((eq battery-status-function 'battery-linux-sysfs)
|
|
|
|
|
"Power %L, battery %B (%p%% load)")
|
2005-07-05 08:14:42 +00:00
|
|
|
|
((eq battery-status-function 'battery-pmset)
|
2008-04-29 00:59:37 +00:00
|
|
|
|
"%L power, battery %B (%p%% load, remaining time %t)")
|
|
|
|
|
(battery-status-function
|
|
|
|
|
"Power %L, battery %B (%p%% load, remaining time %t)"))
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Control string formatting the string to display in the echo area.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
Ordinary characters in the control string are printed as-is, while
|
|
|
|
|
conversion specifications introduced by a `%' character in the control
|
|
|
|
|
string are substituted as defined by the current value of the variable
|
2006-03-11 15:08:42 +00:00
|
|
|
|
`battery-status-function'. Here are the ones generally available:
|
|
|
|
|
%c Current capacity (mAh or mWh)
|
|
|
|
|
%r Current rate of charge or discharge
|
|
|
|
|
%B Battery status (verbose)
|
|
|
|
|
%b Battery status: empty means high, `-' means low,
|
|
|
|
|
`!' means critical, and `+' means charging
|
|
|
|
|
%d Temperature (in degrees Celsius)
|
|
|
|
|
%L AC line status (verbose)
|
|
|
|
|
%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'"
|
1998-03-07 18:19:38 +00:00
|
|
|
|
:type '(choice string (const nil))
|
|
|
|
|
:group 'battery)
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
(defvar battery-mode-line-string nil
|
|
|
|
|
"String to display in the mode line.")
|
2004-12-27 16:40:50 +00:00
|
|
|
|
;;;###autoload (put 'battery-mode-line-string 'risky-local-variable t)
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2011-06-27 08:04:55 +00:00
|
|
|
|
(defcustom battery-mode-line-limit 100
|
|
|
|
|
"Percentage of full battery load below which display battery status"
|
|
|
|
|
:type 'integer
|
|
|
|
|
:group 'battery)
|
|
|
|
|
|
1998-03-07 18:19:38 +00:00
|
|
|
|
(defcustom battery-mode-line-format
|
2008-04-29 00:59:37 +00:00
|
|
|
|
(cond ((eq battery-status-function 'battery-linux-proc-acpi)
|
2005-07-05 08:14:42 +00:00
|
|
|
|
"[%b%p%%,%d<>C]")
|
2008-04-29 00:59:37 +00:00
|
|
|
|
(battery-status-function
|
2005-07-05 08:14:42 +00:00
|
|
|
|
"[%b%p%%]"))
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Control string formatting the string to display in the mode line.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
Ordinary characters in the control string are printed as-is, while
|
|
|
|
|
conversion specifications introduced by a `%' character in the control
|
|
|
|
|
string are substituted as defined by the current value of the variable
|
2006-03-11 15:08:42 +00:00
|
|
|
|
`battery-status-function'. Here are the ones generally available:
|
|
|
|
|
%c Current capacity (mAh or mWh)
|
|
|
|
|
%r Current rate of charge or discharge
|
|
|
|
|
%B Battery status (verbose)
|
|
|
|
|
%b Battery status: empty means high, `-' means low,
|
|
|
|
|
`!' means critical, and `+' means charging
|
|
|
|
|
%d Temperature (in degrees Celsius)
|
|
|
|
|
%L AC line status (verbose)
|
|
|
|
|
%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'"
|
1998-03-07 18:19:38 +00:00
|
|
|
|
:type '(choice string (const nil))
|
|
|
|
|
:group 'battery)
|
|
|
|
|
|
|
|
|
|
(defcustom battery-update-interval 60
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Seconds after which the battery status will be updated."
|
1998-03-07 18:19:38 +00:00
|
|
|
|
:type 'integer
|
|
|
|
|
:group 'battery)
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2005-07-05 08:14:42 +00:00
|
|
|
|
(defcustom battery-load-low 25
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Upper bound of low battery load percentage.
|
2005-07-05 08:14:42 +00:00
|
|
|
|
A battery load percentage below this number is considered low."
|
|
|
|
|
:type 'integer
|
|
|
|
|
:group 'battery)
|
|
|
|
|
|
|
|
|
|
(defcustom battery-load-critical 10
|
2008-12-03 05:48:14 +00:00
|
|
|
|
"Upper bound of critical battery load percentage.
|
2005-07-05 08:14:42 +00:00
|
|
|
|
A battery load percentage below this number is considered critical."
|
|
|
|
|
:type 'integer
|
|
|
|
|
:group 'battery)
|
|
|
|
|
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(defvar battery-update-timer nil
|
|
|
|
|
"Interval timer object.")
|
|
|
|
|
|
1998-03-06 17:45:55 +00:00
|
|
|
|
;;;###autoload
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(defun battery ()
|
|
|
|
|
"Display battery status information in the echo area.
|
1999-12-14 10:19:59 +00:00
|
|
|
|
The text being displayed in the echo area is controlled by the variables
|
1997-06-22 20:08:32 +00:00
|
|
|
|
`battery-echo-area-format' and `battery-status-function'."
|
|
|
|
|
(interactive)
|
|
|
|
|
(message "%s" (if (and battery-echo-area-format battery-status-function)
|
|
|
|
|
(battery-format battery-echo-area-format
|
|
|
|
|
(funcall battery-status-function))
|
|
|
|
|
"Battery status not available")))
|
|
|
|
|
|
1998-03-06 17:45:55 +00:00
|
|
|
|
;;;###autoload
|
2005-01-04 21:15:09 +00:00
|
|
|
|
(define-minor-mode display-battery-mode
|
1997-06-22 20:08:32 +00:00
|
|
|
|
"Display battery status information in the mode line.
|
2000-10-10 01:36:36 +00:00
|
|
|
|
The text being displayed in the mode line is controlled by the variables
|
1997-06-22 20:08:32 +00:00
|
|
|
|
`battery-mode-line-format' and `battery-status-function'.
|
|
|
|
|
The mode line will be updated automatically every `battery-update-interval'
|
|
|
|
|
seconds."
|
2005-04-04 08:53:15 +00:00
|
|
|
|
:global t :group 'battery
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(setq battery-mode-line-string "")
|
|
|
|
|
(or global-mode-string (setq global-mode-string '("")))
|
|
|
|
|
(and battery-update-timer (cancel-timer battery-update-timer))
|
2011-08-25 19:49:57 +00:00
|
|
|
|
(if (and battery-status-function battery-mode-line-format)
|
|
|
|
|
(if (not display-battery-mode)
|
|
|
|
|
(setq global-mode-string
|
|
|
|
|
(delq 'battery-mode-line-string global-mode-string))
|
|
|
|
|
(add-to-list 'global-mode-string 'battery-mode-line-string t)
|
|
|
|
|
(setq battery-update-timer (run-at-time nil battery-update-interval
|
|
|
|
|
'battery-update-handler))
|
|
|
|
|
(battery-update))
|
|
|
|
|
(message "Battery status not available")
|
|
|
|
|
(setq display-battery-mode nil)))
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
(defun battery-update-handler ()
|
|
|
|
|
(battery-update)
|
|
|
|
|
(sit-for 0))
|
|
|
|
|
|
|
|
|
|
(defun battery-update ()
|
|
|
|
|
"Update battery status information in the mode line."
|
2011-06-27 08:04:55 +00:00
|
|
|
|
(let ((data (and battery-status-function (funcall battery-status-function))))
|
|
|
|
|
(setq battery-mode-line-string
|
|
|
|
|
(propertize (if (and battery-mode-line-format
|
|
|
|
|
(<= (car (read-from-string (cdr (assq ?p data))))
|
|
|
|
|
battery-mode-line-limit))
|
|
|
|
|
(battery-format
|
|
|
|
|
battery-mode-line-format
|
|
|
|
|
data)
|
|
|
|
|
"")
|
|
|
|
|
'face
|
|
|
|
|
(and (<= (car (read-from-string (cdr (assq ?p data))))
|
|
|
|
|
battery-load-critical)
|
2011-08-24 18:09:18 +00:00
|
|
|
|
'error)
|
2011-06-27 08:04:55 +00:00
|
|
|
|
'help-echo "Battery status information")))
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(force-mode-line-update))
|
|
|
|
|
|
|
|
|
|
;;; `/proc/apm' interface for Linux.
|
|
|
|
|
|
|
|
|
|
(defconst battery-linux-proc-apm-regexp
|
|
|
|
|
(concat "^\\([^ ]+\\)" ; Driver version.
|
|
|
|
|
" \\([^ ]+\\)" ; APM BIOS version.
|
|
|
|
|
" 0x\\([0-9a-f]+\\)" ; APM BIOS flags.
|
|
|
|
|
" 0x\\([0-9a-f]+\\)" ; AC line status.
|
|
|
|
|
" 0x\\([0-9a-f]+\\)" ; Battery status.
|
|
|
|
|
" 0x\\([0-9a-f]+\\)" ; Battery flags.
|
1998-02-25 22:44:24 +00:00
|
|
|
|
" \\(-?[0-9]+\\)%" ; Load percentage.
|
|
|
|
|
" \\(-?[0-9]+\\)" ; Remaining time.
|
1997-06-22 20:08:32 +00:00
|
|
|
|
" \\(.*\\)" ; Time unit.
|
|
|
|
|
"$")
|
|
|
|
|
"Regular expression matching contents of `/proc/apm'.")
|
|
|
|
|
|
|
|
|
|
(defun battery-linux-proc-apm ()
|
|
|
|
|
"Get APM status information from Linux kernel.
|
|
|
|
|
This function works only with the new `/proc/apm' format introduced
|
|
|
|
|
in Linux version 1.3.58.
|
|
|
|
|
|
|
|
|
|
The following %-sequences are provided:
|
|
|
|
|
%v Linux driver version
|
|
|
|
|
%V APM BIOS version
|
|
|
|
|
%I APM BIOS status (verbose)
|
|
|
|
|
%L AC line status (verbose)
|
|
|
|
|
%B Battery status (verbose)
|
|
|
|
|
%b Battery status, empty means high, `-' means low,
|
|
|
|
|
`!' means critical, and `+' means charging
|
2005-07-01 11:03:19 +00:00
|
|
|
|
%p Battery load percentage
|
2006-03-11 15:08:42 +00:00
|
|
|
|
%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'"
|
1997-06-22 20:08:32 +00:00
|
|
|
|
(let (driver-version bios-version bios-interface line-status
|
|
|
|
|
battery-status battery-status-symbol load-percentage
|
2005-07-01 11:03:19 +00:00
|
|
|
|
seconds minutes hours remaining-time tem)
|
|
|
|
|
(with-temp-buffer
|
|
|
|
|
(ignore-errors (insert-file-contents "/proc/apm"))
|
|
|
|
|
(when (re-search-forward battery-linux-proc-apm-regexp)
|
|
|
|
|
(setq driver-version (match-string 1))
|
|
|
|
|
(setq bios-version (match-string 2))
|
|
|
|
|
(setq tem (string-to-number (match-string 3) 16))
|
|
|
|
|
(if (not (logand tem 2))
|
|
|
|
|
(setq bios-interface "not supported")
|
|
|
|
|
(setq bios-interface "enabled")
|
|
|
|
|
(cond ((logand tem 16) (setq bios-interface "disabled"))
|
|
|
|
|
((logand tem 32) (setq bios-interface "disengaged")))
|
|
|
|
|
(setq tem (string-to-number (match-string 4) 16))
|
|
|
|
|
(cond ((= tem 0) (setq line-status "off-line"))
|
|
|
|
|
((= tem 1) (setq line-status "on-line"))
|
|
|
|
|
((= tem 2) (setq line-status "on backup")))
|
|
|
|
|
(setq tem (string-to-number (match-string 6) 16))
|
|
|
|
|
(if (= tem 255)
|
|
|
|
|
(setq battery-status "N/A")
|
|
|
|
|
(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 hours))))))))
|
1998-02-25 22:44:24 +00:00
|
|
|
|
(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 (or (and seconds (number-to-string seconds)) "N/A"))
|
|
|
|
|
(cons ?m (or (and minutes (number-to-string minutes)) "N/A"))
|
|
|
|
|
(cons ?h (or (and hours (number-to-string hours)) "N/A"))
|
|
|
|
|
(cons ?t (or remaining-time "N/A")))))
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2003-09-06 19:28:08 +00:00
|
|
|
|
|
|
|
|
|
;;; `/proc/acpi/' interface for Linux.
|
|
|
|
|
|
|
|
|
|
(defun battery-linux-proc-acpi ()
|
|
|
|
|
"Get ACPI status information from Linux kernel.
|
2008-08-08 17:46:49 +00:00
|
|
|
|
This function works only with the `/proc/acpi/' format introduced
|
2003-09-06 19:28:08 +00:00
|
|
|
|
in Linux version 2.4.20 and 2.6.0.
|
|
|
|
|
|
|
|
|
|
The following %-sequences are provided:
|
|
|
|
|
%c Current capacity (mAh)
|
2005-07-01 11:03:19 +00:00
|
|
|
|
%r Current rate
|
2003-09-06 19:28:08 +00:00
|
|
|
|
%B Battery status (verbose)
|
|
|
|
|
%b Battery status, empty means high, `-' means low,
|
|
|
|
|
`!' means critical, and `+' means charging
|
|
|
|
|
%d Temperature (in degrees Celsius)
|
|
|
|
|
%L AC line status (verbose)
|
2005-07-01 11:03:19 +00:00
|
|
|
|
%p Battery load percentage
|
2006-03-11 15:08:42 +00:00
|
|
|
|
%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'"
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(let ((design-capacity 0)
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(last-full-capacity 0)
|
|
|
|
|
full-capacity
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(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
|
2004-09-18 11:50:18 +00:00
|
|
|
|
;; information together since displaying for a variable amount of
|
|
|
|
|
;; batteries seems overkill for format-strings.
|
|
|
|
|
(with-temp-buffer
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(dolist (dir (ignore-errors (directory-files "/proc/acpi/battery/"
|
|
|
|
|
t "\\`[^.]")))
|
|
|
|
|
(erase-buffer)
|
|
|
|
|
(ignore-errors (insert-file-contents (expand-file-name "state" dir)))
|
|
|
|
|
(when (re-search-forward "present: +yes$" nil t)
|
|
|
|
|
(and (re-search-forward "charging state: +\\(.*\\)$" nil t)
|
2006-03-11 15:08:42 +00:00
|
|
|
|
(member charging-state '("unknown" "charged" nil))
|
2004-09-18 21:33:44 +00:00
|
|
|
|
;; 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 "present rate: +\\([0-9]+\\) \\(m[AW]\\)$"
|
|
|
|
|
nil t)
|
|
|
|
|
(setq rate (+ (or rate 0) (string-to-number (match-string 1)))
|
|
|
|
|
rate-type (or (and rate-type
|
|
|
|
|
(if (string= rate-type (match-string 2))
|
|
|
|
|
rate-type
|
|
|
|
|
(error
|
|
|
|
|
"Inconsistent rate types (%s vs. %s)"
|
|
|
|
|
rate-type (match-string 2))))
|
|
|
|
|
(match-string 2))))
|
|
|
|
|
(when (re-search-forward "remaining capacity: +\\([0-9]+\\) m[AW]h$"
|
|
|
|
|
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 "present: +yes$" nil t)
|
|
|
|
|
(when (re-search-forward "design capacity: +\\([0-9]+\\) m[AW]h$"
|
|
|
|
|
nil t)
|
|
|
|
|
(incf design-capacity (string-to-number (match-string 1))))
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(when (re-search-forward "last full capacity: +\\([0-9]+\\) m[AW]h$"
|
|
|
|
|
nil t)
|
|
|
|
|
(incf last-full-capacity (string-to-number (match-string 1))))
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(when (re-search-forward
|
|
|
|
|
"design capacity warning: +\\([0-9]+\\) m[AW]h$" nil t)
|
|
|
|
|
(incf warn (string-to-number (match-string 1))))
|
|
|
|
|
(when (re-search-forward "design capacity low: +\\([0-9]+\\) m[AW]h$"
|
|
|
|
|
nil t)
|
|
|
|
|
(incf low (string-to-number (match-string 1)))))))
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(setq full-capacity (if (> last-full-capacity 0)
|
|
|
|
|
last-full-capacity design-capacity))
|
2003-09-06 19:28:08 +00:00
|
|
|
|
(and capacity rate
|
2004-06-04 16:05:56 +00:00
|
|
|
|
(setq minutes (if (zerop rate) 0
|
|
|
|
|
(floor (* (/ (float (if (string= charging-state
|
|
|
|
|
"charging")
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(- full-capacity capacity)
|
|
|
|
|
capacity))
|
|
|
|
|
rate)
|
|
|
|
|
60)))
|
2003-09-06 19:28:08 +00:00
|
|
|
|
hours (/ minutes 60)))
|
|
|
|
|
(list (cons ?c (or (and capacity (number-to-string capacity)) "N/A"))
|
2006-11-05 13:22:30 +00:00
|
|
|
|
(cons ?L (or (battery-search-for-one-match-in-files
|
|
|
|
|
(mapcar (lambda (e) (concat e "/state"))
|
2007-01-10 01:20:10 +00:00
|
|
|
|
(ignore-errors
|
|
|
|
|
(directory-files "/proc/acpi/ac_adapter/"
|
|
|
|
|
t "\\`[^.]")))
|
2006-11-05 13:22:30 +00:00
|
|
|
|
"state: +\\(.*\\)$" 1)
|
|
|
|
|
|
2003-09-06 19:28:08 +00:00
|
|
|
|
"N/A"))
|
2006-11-05 13:22:30 +00:00
|
|
|
|
(cons ?d (or (battery-search-for-one-match-in-files
|
|
|
|
|
(mapcar (lambda (e) (concat e "/temperature"))
|
2007-01-10 01:20:10 +00:00
|
|
|
|
(ignore-errors
|
|
|
|
|
(directory-files "/proc/acpi/thermal_zone/"
|
|
|
|
|
t "\\`[^.]")))
|
2006-11-05 13:22:30 +00:00
|
|
|
|
"temperature: +\\([0-9]+\\) C$" 1)
|
|
|
|
|
|
2003-09-06 19:28:08 +00:00
|
|
|
|
"N/A"))
|
2004-06-04 16:05:56 +00:00
|
|
|
|
(cons ?r (or (and rate (concat (number-to-string rate) " "
|
|
|
|
|
rate-type)) "N/A"))
|
2003-09-06 19:28:08 +00:00
|
|
|
|
(cons ?B (or charging-state "N/A"))
|
|
|
|
|
(cons ?b (or (and (string= charging-state "charging") "+")
|
2006-03-11 22:34:46 +00:00
|
|
|
|
(and capacity (< capacity low) "!")
|
|
|
|
|
(and capacity (< capacity warn) "-")
|
2003-09-06 19:28:08 +00:00
|
|
|
|
""))
|
|
|
|
|
(cons ?h (or (and hours (number-to-string hours)) "N/A"))
|
|
|
|
|
(cons ?m (or (and minutes (number-to-string minutes)) "N/A"))
|
|
|
|
|
(cons ?t (or (and minutes
|
|
|
|
|
(format "%d:%02d" hours (- minutes (* 60 hours))))
|
|
|
|
|
"N/A"))
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(cons ?p (or (and full-capacity capacity
|
2006-11-01 14:24:37 +00:00
|
|
|
|
(> full-capacity 0)
|
2003-09-06 19:28:08 +00:00
|
|
|
|
(number-to-string
|
|
|
|
|
(floor (/ capacity
|
2006-01-19 17:49:13 +00:00
|
|
|
|
(/ (float full-capacity) 100)))))
|
2003-09-06 19:28:08 +00:00
|
|
|
|
"N/A")))))
|
|
|
|
|
|
2008-08-08 17:46:49 +00:00
|
|
|
|
|
|
|
|
|
;;; `/sys/class/power_supply/BATN' interface for Linux.
|
|
|
|
|
|
|
|
|
|
(defun battery-linux-sysfs ()
|
|
|
|
|
"Get ACPI status information from Linux kernel.
|
|
|
|
|
This function works only with the new `/sys/class/power_supply/'
|
|
|
|
|
format introduced in Linux version 2.4.25.
|
|
|
|
|
|
|
|
|
|
The following %-sequences are provided:
|
|
|
|
|
%c Current capacity (mAh or mWh)
|
|
|
|
|
%B Battery status (verbose)
|
|
|
|
|
%p Battery load percentage
|
|
|
|
|
%L AC line status (verbose)"
|
|
|
|
|
(let (charging-state
|
|
|
|
|
(charge-full 0.0)
|
|
|
|
|
(charge-now 0.0)
|
|
|
|
|
(energy-full 0.0)
|
|
|
|
|
(energy-now 0.0))
|
|
|
|
|
;; 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 (ignore-errors
|
|
|
|
|
(directory-files
|
|
|
|
|
"/sys/class/power_supply/" t "BAT[0-9]$")))
|
|
|
|
|
(erase-buffer)
|
|
|
|
|
(ignore-errors (insert-file-contents
|
|
|
|
|
(expand-file-name "uevent" dir)))
|
|
|
|
|
(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)))
|
|
|
|
|
(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)))
|
|
|
|
|
(setq charge-full (+ charge-full
|
|
|
|
|
(string-to-number full-string))
|
|
|
|
|
charge-now (+ charge-now
|
|
|
|
|
(string-to-number now-string))))
|
|
|
|
|
((and (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)))
|
|
|
|
|
(setq energy-full (+ energy-full
|
|
|
|
|
(string-to-number full-string))
|
|
|
|
|
energy-now (+ energy-now
|
|
|
|
|
(string-to-number now-string)))))))))
|
|
|
|
|
(list (cons ?c (cond ((or (> charge-full 0) (> charge-now 0))
|
|
|
|
|
(number-to-string charge-now))
|
|
|
|
|
((or (> energy-full 0) (> energy-now 0))
|
|
|
|
|
(number-to-string energy-now))
|
|
|
|
|
(t "N/A")))
|
|
|
|
|
(cons ?B (or charging-state "N/A"))
|
|
|
|
|
(cons ?p (cond ((> charge-full 0)
|
|
|
|
|
(format "%.1f"
|
|
|
|
|
(/ (* 100 charge-now) charge-full)))
|
|
|
|
|
((> energy-full 0)
|
|
|
|
|
(format "%.1f"
|
|
|
|
|
(/ (* 100 energy-now) energy-full)))
|
|
|
|
|
(t "N/A")))
|
|
|
|
|
(cons ?L (if (file-readable-p "/sys/class/power_supply/AC/online")
|
|
|
|
|
(if (battery-search-for-one-match-in-files
|
|
|
|
|
(list "/sys/class/power_supply/AC/online"
|
|
|
|
|
"/sys/class/power_supply/ACAD/online")
|
|
|
|
|
"1" 0)
|
|
|
|
|
"AC"
|
|
|
|
|
"BAT")
|
|
|
|
|
"N/A")))))
|
|
|
|
|
|
|
|
|
|
|
2005-07-05 08:14:42 +00:00
|
|
|
|
|
|
|
|
|
;;; `pmset' interface for Darwin (OS X).
|
|
|
|
|
|
|
|
|
|
(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
|
|
|
|
|
%h Remaining time in hours
|
|
|
|
|
%m Remaining time in minutes
|
|
|
|
|
%t Remaining time 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 "Currentl?y drawing from '\\(AC\\|Battery\\) Power'" nil t)
|
|
|
|
|
(setq power-source (match-string 1))
|
|
|
|
|
(when (re-search-forward "^ -InternalBattery-0[ \t]+" nil t)
|
|
|
|
|
(when (looking-at "\\([0-9]\\{1,3\\}\\)%")
|
|
|
|
|
(setq load-percentage (match-string 1))
|
|
|
|
|
(goto-char (match-end 0))
|
|
|
|
|
(cond ((looking-at "; charging")
|
|
|
|
|
(setq battery-status "charging"
|
|
|
|
|
battery-status-symbol "+"))
|
|
|
|
|
((< (string-to-number load-percentage) battery-load-low)
|
|
|
|
|
(setq battery-status "low"
|
|
|
|
|
battery-status-symbol "-"))
|
|
|
|
|
((< (string-to-number load-percentage) battery-load-critical)
|
|
|
|
|
(setq battery-status "critical"
|
|
|
|
|
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")))))
|
|
|
|
|
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
;;; Private functions.
|
|
|
|
|
|
|
|
|
|
(defun battery-format (format alist)
|
|
|
|
|
"Substitute %-sequences in FORMAT."
|
2004-09-18 21:33:44 +00:00
|
|
|
|
(replace-regexp-in-string
|
|
|
|
|
"%."
|
|
|
|
|
(lambda (str)
|
|
|
|
|
(let ((char (aref str 1)))
|
|
|
|
|
(if (eq char ?%) "%"
|
|
|
|
|
(or (cdr (assoc char alist)) ""))))
|
|
|
|
|
format t t))
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
2006-11-05 13:22:30 +00:00
|
|
|
|
(defun battery-search-for-one-match-in-files (files regexp match-num)
|
|
|
|
|
"Search REGEXP in the content of the files listed in FILES.
|
2007-01-08 23:00:24 +00:00
|
|
|
|
If a match occurred, return the parenthesized expression numbered by
|
2006-11-05 13:22:30 +00:00
|
|
|
|
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)))))))
|
|
|
|
|
|
1997-06-22 20:08:32 +00:00
|
|
|
|
|
|
|
|
|
(provide 'battery)
|
|
|
|
|
|
|
|
|
|
;;; battery.el ends here
|