X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/cce7d53002e8abc346b67ea4100507b0e7c4d68e..ac0215a325f4226b73fd650318349395a6d88835:/lisp/battery.el diff --git a/lisp/battery.el b/lisp/battery.el index 9afe9de7b9..696b121465 100644 --- a/lisp/battery.el +++ b/lisp/battery.el @@ -1,6 +1,6 @@ ;;; battery.el --- display battery status information -*- coding: iso-8859-1 -*- -;; Copyright (C) 1997-1998, 2000-2011 Free Software Foundation, Inc. +;; Copyright (C) 1997-1998, 2000-2013 Free Software Foundation, Inc. ;; Author: Ralph Schleicher ;; Keywords: hardware @@ -31,14 +31,16 @@ ;;; Code: (require 'timer) -(eval-when-compile (require 'cl)) - +(eval-when-compile (require 'cl-lib)) (defgroup battery nil "Display battery status information." :prefix "battery-" :group 'hardware) +;; Either BATn or yeeloong-bat, basically. +(defconst battery--linux-sysfs-regexp "[bB][aA][tT][0-9]?$") + (defcustom battery-status-function (cond ((and (eq system-type 'gnu/linux) (file-readable-p "/proc/apm")) @@ -48,7 +50,8 @@ 'battery-linux-proc-acpi) ((and (eq system-type 'gnu/linux) (file-directory-p "/sys/class/power_supply/") - (directory-files "/sys/class/power_supply/" nil "BAT[0-9]$")) + (directory-files "/sys/class/power_supply/" nil + battery--linux-sysfs-regexp)) 'battery-linux-sysfs) ((and (eq system-type 'darwin) (condition-case nil @@ -57,7 +60,7 @@ (> (buffer-size) 0))) (error nil))) 'battery-pmset) - ((eq system-type 'windows-nt) + ((fboundp 'w32-battery-status) 'w32-battery-status)) "Function for getting battery status information. The function has to return an alist of conversion definitions. @@ -74,7 +77,7 @@ introduced by a `%' character in a control string." (cond ((eq battery-status-function 'battery-linux-proc-acpi) "Power %L, battery %B at %r (%p%% load, remaining time %t)") ((eq battery-status-function 'battery-linux-sysfs) - "Power %L, battery %B (%p%% load)") + "Power %L, battery %B (%p%% load, remaining time %t)") ((eq battery-status-function 'battery-pmset) "%L power, battery %B (%p%% load, remaining time %t)") (battery-status-function @@ -102,6 +105,12 @@ string are substituted as defined by the current value of the variable "String to display in the mode line.") ;;;###autoload (put 'battery-mode-line-string 'risky-local-variable t) +(defcustom battery-mode-line-limit 100 + "Percentage of full battery load below which display battery status" + :version "24.1" + :type 'integer + :group 'battery) + (defcustom battery-mode-line-format (cond ((eq battery-status-function 'battery-linux-proc-acpi) "[%b%p%%,%d°C]") @@ -159,22 +168,29 @@ The text being displayed in the echo area is controlled by the variables ;;;###autoload (define-minor-mode display-battery-mode - "Display battery status information in the mode line. -The text being displayed in the mode line is controlled by the variables + "Toggle battery status display in mode line (Display Battery mode). +With a prefix argument ARG, enable Display Battery mode if ARG is +positive, and disable it otherwise. If called from Lisp, enable +the mode if ARG is omitted or nil. + +The text displayed in the mode line is controlled by `battery-mode-line-format' and `battery-status-function'. -The mode line will be updated automatically every `battery-update-interval' +The mode line is be updated every `battery-update-interval' seconds." :global t :group 'battery (setq battery-mode-line-string "") (or global-mode-string (setq global-mode-string '(""))) (and battery-update-timer (cancel-timer battery-update-timer)) - (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))) + (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))) (defun battery-update-handler () (battery-update) @@ -182,16 +198,21 @@ seconds." (defun battery-update () "Update battery status information in the mode line." - (setq battery-mode-line-string - (propertize (if (and battery-mode-line-format - battery-status-function) - (battery-format - battery-mode-line-format - (funcall battery-status-function)) - "") - 'help-echo "Battery status information")) + (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) + 'error) + 'help-echo "Battery status information"))) (force-mode-line-update)) - ;;; `/proc/apm' interface for Linux. @@ -209,7 +230,7 @@ seconds." "Regular expression matching contents of `/proc/apm'.") (defun battery-linux-proc-apm () - "Get APM status information from Linux kernel. + "Get APM status information from Linux (the kernel). This function works only with the new `/proc/apm' format introduced in Linux version 1.3.58. @@ -280,7 +301,7 @@ The following %-sequences are provided: ;;; `/proc/acpi/' interface for Linux. (defun battery-linux-proc-acpi () - "Get ACPI status information from Linux kernel. + "Get ACPI status information from Linux (the kernel). This function works only with the `/proc/acpi/' format introduced in Linux version 2.4.20 and 2.6.0. @@ -320,14 +341,15 @@ The following %-sequences are provided: (setq charging-state (match-string 1))) (when (re-search-forward "present rate: +\\([0-9]+\\) \\(m[AW]\\)$" nil t) - (setq rate (+ (or rate 0) (string-to-number (match-string 1))) - rate-type (or (and rate-type + (setq rate (+ (or rate 0) (string-to-number (match-string 1)))) + (when (> rate 0) + (setq rate-type (or (and rate-type (if (string= rate-type (match-string 2)) rate-type (error "Inconsistent rate types (%s vs. %s)" rate-type (match-string 2)))) - (match-string 2)))) + (match-string 2))))) (when (re-search-forward "remaining capacity: +\\([0-9]+\\) m[AW]h$" nil t) (setq capacity @@ -337,16 +359,16 @@ The following %-sequences are provided: (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)))) + (cl-incf design-capacity (string-to-number (match-string 1)))) (when (re-search-forward "last full capacity: +\\([0-9]+\\) m[AW]h$" nil t) - (incf last-full-capacity (string-to-number (match-string 1)))) + (cl-incf last-full-capacity (string-to-number (match-string 1)))) (when (re-search-forward "design capacity warning: +\\([0-9]+\\) m[AW]h$" nil t) - (incf warn (string-to-number (match-string 1)))) + (cl-incf warn (string-to-number (match-string 1)))) (when (re-search-forward "design capacity low: +\\([0-9]+\\) m[AW]h$" nil t) - (incf low (string-to-number (match-string 1))))))) + (cl-incf low (string-to-number (match-string 1))))))) (setq full-capacity (if (> last-full-capacity 0) last-full-capacity design-capacity)) (and capacity rate @@ -404,10 +426,15 @@ format introduced in Linux version 2.4.25. The following %-sequences are provided: %c Current capacity (mAh or mWh) +%r Current rate %B Battery status (verbose) +%d Temperature (in degrees Celsius) %p Battery load percentage -%L AC line status (verbose)" - (let (charging-state +%L AC line status (verbose) +%m Remaining time (to charge or discharge) in minutes +%h Remaining time (to charge or discharge) in hours +%t Remaining time (to charge or discharge) in the form `h:min'" + (let (charging-state rate temperature hours (charge-full 0.0) (charge-now 0.0) (energy-full 0.0) @@ -418,7 +445,8 @@ The following %-sequences are provided: (with-temp-buffer (dolist (dir (ignore-errors (directory-files - "/sys/class/power_supply/" t "BAT[0-9]$"))) + "/sys/class/power_supply/" t + battery--linux-sysfs-regexp))) (erase-buffer) (ignore-errors (insert-file-contents (expand-file-name "uevent" dir))) @@ -427,6 +455,12 @@ The following %-sequences are provided: (and (re-search-forward "POWER_SUPPLY_STATUS=\\(.*\\)$" nil t) (member charging-state '("Unknown" "Full" nil)) (setq charging-state (match-string 1))) + (when (re-search-forward + "POWER_SUPPLY_\\(CURRENT\\|POWER\\)_NOW=\\([0-9]*\\)$" + nil t) + (setq rate (float (string-to-number (match-string 2))))) + (when (re-search-forward "POWER_SUPPLY_TEMP=\\([0-9]*\\)$" nil t) + (setq temperature (match-string 1))) (let (full-string now-string) ;; Sysfs may list either charge (mAh) or energy (mWh). ;; Keep track of both, and choose which to report later. @@ -449,14 +483,32 @@ The following %-sequences are provided: (setq energy-full (+ energy-full (string-to-number full-string)) energy-now (+ energy-now - (string-to-number now-string))))))))) + (string-to-number now-string)))))) + (goto-char (point-min)) + (when (and energy-now rate (not (zerop rate)) + (re-search-forward + "POWER_SUPPLY_VOLTAGE_NOW=\\([0-9]*\\)$" nil t)) + (let ((remaining (if (string= charging-state "Discharging") + energy-now + (- energy-full energy-now)))) + (setq hours (/ (/ (* remaining (string-to-number + (match-string 1))) + rate) + 10000000.0))))))) (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 ?r (if rate (format "%.1f" (/ rate 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 ?p (cond ((> charge-full 0) + (cons ?p (cond ((and (> charge-full 0) (> charge-now 0)) (format "%.1f" (/ (* 100 charge-now) charge-full))) ((> energy-full 0) @@ -471,8 +523,6 @@ The following %-sequences are provided: "AC" "BAT") "N/A"))))) - - ;;; `pmset' interface for Darwin (OS X).