/* wmbattery - display laptop battery info, dockable in WindowMaker * Copyright (C) 1998-2014 Joey Hess * Copyright (C) 2014 Window Maker Developers Team * * * Portions of code derived from: * wmapm - Copyright (C) 1998-1999 Chris D. Faulhaber * wmmon - Copyright (C) 1998 Martijn Pieterse * Copyright (C) 1998 Antoine Nulle * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public License * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * 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 * along with this program. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wmbattery.h" #ifdef HAVE_GETOPT_H #include #endif #include "mask.xbm" #include "sonypi.h" #include "acpi.h" #ifdef HAL #include "simplehal.h" #endif #ifdef UPOWER #include "upower.h" #endif Pixmap images[NUM_IMAGES]; Window root, iconwin, win; int screen; XpmIcon icon; Display *display; GC NormalGC; int pos[2] = {0, 0}; #ifdef HAVE__DEV_APM #define APM_STATUS_FILE "/dev/apm" #else #define APM_STATUS_FILE "/proc/apm" #endif char *apm_status_file = APM_STATUS_FILE; char *crit_audio_fn = NULL; char *crit_audio; int crit_audio_size; char *crit_command = NULL; int battnum = 1; #ifdef HAL int use_simplehal = 0; #endif #ifdef UPOWER int use_upower = 0; #endif int use_sonypi = 0; int use_acpi = 0; int delay = 0; int always_estimate_remaining = 0; int granularity_estimate_remaining = 1; int initial_state = WithdrawnState; signed int low_pct = -1; signed int critical_pct = -1; void error(const char *fmt, ...) { va_list arglist; va_start(arglist, fmt); fprintf(stderr, "Error: "); vfprintf(stderr, fmt, arglist); fprintf(stderr, "\n"); va_end(arglist); exit(1); } #if defined (HAVE_MACHINE_APM_BIOS_H) || defined (HAVE_I386_APMVAR_H) /* BSD */ int apm_read(apm_info *i) { int fd; #ifdef HAVE_MACHINE_APM_BIOS_H /* FreeBSD */ unsigned long request = APMIO_GETINFO; struct apm_info info; #else /* NetBSD or OpenBSD */ unsigned long request= APM_IOC_GETPOWER; struct apm_power_info info; #endif if ((fd = open(apm_status_file, O_RDONLY)) == -1) { return 0; } if (ioctl(fd, request, &info) == -1) { return 0; } close(fd); #ifdef HAVE_MACHINE_APM_BIOS_H /* FreeBSD */ i->ac_line_status = info.ai_acline; i->battery_status = info.ai_batt_stat; i->battery_flags = (info.ai_batt_stat == 3) ? 8: 0; i->battery_percentage = info.ai_batt_life; i->battery_time = info.ai_batt_time; i->using_minutes = 0; #else /* NetBSD or OpenBSD */ i->ac_line_status = info.ac_state; i->battery_status = info.battery_state; i->battery_flags = (info.battery_state == 3) ? 8: 0; i->battery_percentage = info.battery_life; i->battery_time = info.minutes_left; i->using_minutes = 1; #endif return 1; } int apm_exists(void) { apm_info i; if (access(apm_status_file, R_OK)) return 0; return apm_read(&i); } #endif #if !defined(HAVE_LIBAPM) int apm_read(apm_info *i) { return -1; } int apm_exists(void) { return -1; } #endif int apm_change(apm_info *cur) { static int ac_line_status = 0, battery_status = 0, battery_flags = 0, battery_percentage = 0, battery_time = 0, using_minutes = 0; int i = cur->ac_line_status == ac_line_status && cur->battery_status == battery_status && cur->battery_flags == battery_flags && cur->battery_percentage == battery_percentage && cur->battery_time == battery_time && cur->using_minutes == using_minutes; ac_line_status = cur->ac_line_status; battery_status = cur->battery_status; battery_flags = cur->battery_flags; battery_percentage = cur->battery_percentage; battery_time = cur->battery_time; using_minutes = cur->using_minutes; return i; } /* Calculate battery estimate */ void estimate_timeleft(apm_info *cur_info) { /* Time of the last estimate */ static time_t estimate_time; /* Estimated time left */ static time_t estimate; /* Time when we last noticed a battery level change */ static time_t battery_change_time; /* The previous estimation we had before the battery level changed */ static time_t prev_estimate; /* Percentage at the last estimate */ static short percent; /* Where we charging or discharging the last time we were called? */ static short was_charging = 1; /* Have we made a guess lately? */ static short guessed_lately; time_t t; int interval; short is_charging = cur_info->battery_flags & BATTERY_FLAGS_CHARGING; errno = 0; if (time(&t) == ((time_t)-1) && errno != 0) goto estim_values; if (( /* AC is on and battery is not charging anymore or ... */ (cur_info->ac_line_status == AC_LINE_STATUS_ON) && !is_charging ) || ( /* ... the charging state has changed */ is_charging ^ was_charging )) { /* Reset counters */ battery_change_time = t; estimate = -1; guessed_lately = 0; estimate_time = t; prev_estimate = 0; goto estim_values; } /* No change: decrease estimate */ if ((percent - cur_info->battery_percentage) / granularity_estimate_remaining == 0) { estimate -= t - estimate_time; estimate_time = t; if (guessed_lately && estimate < 0) estimate = 0; goto estim_values; } /* The battery level changed: calculate estimate based * on change speed and previous estimate */ guessed_lately = 1; estimate_time = t; interval = estimate_time - battery_change_time; prev_estimate = estimate; battery_change_time = estimate_time; estimate = (is_charging ? (cur_info->battery_percentage - 100) : cur_info->battery_percentage) * interval / (percent - cur_info->battery_percentage); if (prev_estimate > 0) estimate = (estimate * 2 + prev_estimate) / 3; estim_values: percent = cur_info->battery_percentage; was_charging = is_charging; cur_info->battery_time = estimate; if (estimate < 0) estimate = 0; cur_info->using_minutes = 0; } /* Load up the images this program uses. */ void load_images(void) { int x; char fn[128]; /* enough? */ for (x = 0; x < NUM_IMAGES; x++) { sprintf(fn, "%s/%s.xpm", ICONDIR, image_info[x].filename); if (XpmReadFileToPixmap(display, root, fn, &images[x], NULL, NULL)) { /* Check in current direcotry for fallback. */ sprintf(fn, "%s.xpm", image_info[x].filename); if (XpmReadFileToPixmap(display, root, fn, &images[x], NULL, NULL)) error("Failed to load %s\n", fn); } } } void load_audio(void) { int fd; struct stat s; crit_audio = NULL; if (crit_audio_fn == NULL) return; fd = open(crit_audio_fn, 0); if (fd == -1) error("unable to open audio file"); if (fstat(fd, &s) == 0) { crit_audio_size = s.st_size; crit_audio = malloc(crit_audio_size); /* XXX: make this more robust? (loop?) */ if (read(fd, crit_audio, crit_audio_size) != crit_audio_size) { free(crit_audio); crit_audio = NULL; error("unable to read audio file"); } } close(fd); } /* string replacement function by Laird Shaw, in public domain * http://creativeandcritical.net/str-replace-c */ char *replace_str(const char *str, const char *old, const char *new) { char *ret, *r; const char *p, *q; size_t oldlen = strlen(old); size_t count, retlen, newlen = strlen(new); if (oldlen != newlen) { for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) count++; /* this is undefined if p - str > PTRDIFF_MAX */ retlen = p - str + strlen(p) + count * (newlen - oldlen); } else retlen = strlen(str); ret = malloc(retlen + 1); if (!ret) return NULL; for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) { /* this is undefined if q - p > PTRDIFF_MAX */ ptrdiff_t l = q - p; memcpy(r, p, l); r += l; memcpy(r, new, newlen); r += newlen; } strcpy(r, p); return ret; } void cmd_crit(const char *cmd, int percentage, int time) { char prc_str[255] = ""; char min_str[255] = ""; char sec_str[255] = ""; char *tmp_a = NULL; char *tmp_b = NULL; char *command = NULL; int ret; if (!cmd) return; if (percentage > 100 || percentage < 0) return; if (time > 65535 || time < 0) return; sprintf(prc_str, "%i", percentage); sprintf(min_str, "%i", time / 60); sprintf(sec_str, "%i", time % 60); tmp_a = replace_str(cmd, STR_SUB_PERCENT, prc_str); if (!tmp_a) return; tmp_b = replace_str(tmp_a, STR_SUB_MINUTES, min_str); if (!tmp_b) return; command = replace_str(tmp_b, STR_SUB_SECONDS, sec_str); if (!command) return; ret = system(command); if (ret == -1) error("unable to run command: %s", command); free(tmp_a); free(tmp_b); free(command); } /* Returns the display to run on (or NULL for default). */ char *parse_commandline(int argc, char *argv[]) { int c = 0; char *ret = NULL; char *s; while (c != -1) { c = getopt(argc, argv, "hd:g:if:b:w:c:l:es:a:x:v"); switch (c) { case 'h': printf("Usage: wmbattery [options]\n"); printf("\t-d \tselects target display\n"); printf("\t-h\t\tdisplay this help\n"); printf("\t-g +x+y\t\tposition of the window\n"); printf("\t-i start\n"); printf("\t-b num\t\tnumber of battery to display\n"); printf("\t-w secs\t\tseconds between updates\n"); printf("\t-l percent\tlow percentage\n"); printf("\t-c percent\tcritical percentage\n"); printf("\t-e\t\tuse own time estimates\n"); printf("\t-s granularity\tignore fluctuations less than granularity%% (implies -e)\n"); printf("\t-a file\t\twhen critical send file to /dev/audio\n"); printf("\t-x command\twhen critical execute this command\n"); printf("\t-v\t\tdisplay version number\n"); exit(0); break; case 'd': ret = strdup(optarg); break; case 'g': s = strtok(optarg, "+"); if (s) { pos[0] = atoi(s); s = strtok(NULL, "+"); if (s) pos[1] = atoi(s); else pos[0] = 0; } break; case 'i': initial_state = IconicState; break; case 'b': battnum = atoi(optarg); break; case 'w': delay = atoi(optarg); break; case 'l': low_pct = atoi(optarg); break; case 'c': critical_pct = atoi(optarg); break; case 'e': always_estimate_remaining = 1; break; case 's': always_estimate_remaining = 1; granularity_estimate_remaining = atoi(optarg); break; case 'a': crit_audio_fn = strdup(optarg); break; case 'x': crit_command = strdup(optarg); break; case 'v': printf("wmbattery "PACKAGE_VERSION"\n"); exit(0); break; } } return ret; } /* Sets up the window and icon and all the nasty X stuff. */ void make_window(char *display_name, int argc, char *argv[]) { XClassHint classhint; char *wname = argv[0]; XTextProperty name; XGCValues gcv; int dummy = 0, borderwidth = 1; XSizeHints sizehints; XWMHints wmhints; Pixel back_pix, fore_pix; Pixmap pixmask; display = XOpenDisplay(display_name); if (!display) error("can't open display %s", XDisplayName(display_name)); screen = DefaultScreen(display); root = RootWindow(display, screen); /* Create window. */ sizehints.flags = USSize | USPosition; sizehints.x = 0; sizehints.y = 0; XWMGeometry(display, screen, "", NULL, borderwidth, &sizehints, &sizehints.x, &sizehints.y, &sizehints.width, &sizehints.height, &dummy); sizehints.width = 64; sizehints.height = 64; sizehints.x = pos[0]; sizehints.y = pos[1]; back_pix = WhitePixel(display, screen); fore_pix = BlackPixel(display, screen); win = XCreateSimpleWindow(display, root, sizehints.x, sizehints.y, sizehints.width, sizehints.height, borderwidth, fore_pix, back_pix); iconwin = XCreateSimpleWindow(display, win, sizehints.x, sizehints.y, sizehints.width, sizehints.height, borderwidth, fore_pix, back_pix); /* Activate hints */ XSetWMNormalHints(display, win, &sizehints); classhint.res_name = wname; classhint.res_class = wname; XSetClassHint(display, win, &classhint); if (!XStringListToTextProperty(&wname, 1, &name)) error("Can't allocate window name."); XSetWMName(display, win, &name); /* Create GC for drawing */ gcv.foreground = fore_pix; gcv.background = back_pix; gcv.graphics_exposures = 0; NormalGC = XCreateGC(display, root, GCForeground | GCBackground | GCGraphicsExposures, &gcv); pixmask = XCreateBitmapFromData(display, win, mask_bits, mask_width, mask_height); XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask, ShapeSet); XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask, ShapeSet); wmhints.initial_state = initial_state; wmhints.icon_window = iconwin; wmhints.icon_x = sizehints.x; wmhints.icon_y = sizehints.y; wmhints.window_group = win; wmhints.flags = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint; XSetWMHints(display, win, &wmhints); XSetCommand(display, win, argv, argc); XSelectInput(display, iconwin, ExposureMask); XSelectInput(display, win, ExposureMask); XMapWindow(display, win); } void flush_expose(Window w) { XEvent dummy; while (XCheckTypedWindowEvent(display, w, Expose, &dummy)) ; } void redraw_window(void) { XCopyArea(display, images[FACE], iconwin, NormalGC, 0, 0, image_info[FACE].width, image_info[FACE].height, 0, 0); flush_expose(iconwin); XCopyArea(display, images[FACE], win, NormalGC, 0, 0, image_info[FACE].width, image_info[FACE].height, 0, 0); flush_expose(win); } /* * Display an image, using XCopyArea. Can display only part of an image, * located anywhere. */ void copy_image(int image, int xoffset, int yoffset, int width, int height, int x, int y) { XCopyArea(display, images[image], images[FACE], NormalGC, xoffset, yoffset, width, height, x, y); } /* * Display a letter in one of two fonts, at the specified x position. * Note that 10 is passed for special characters `:' or `1' at the * end of the font. */ void draw_letter(int letter, int font, int x) { copy_image(font, image_info[font].charwidth * letter, 0, image_info[font].charwidth, image_info[font].height, x, image_info[font].y); } /* Display an image at its normal location. */ void draw_image(int image) { copy_image(image, 0, 0, image_info[image].width, image_info[image].height, image_info[image].x, image_info[image].y); } void recalc_window(apm_info cur_info) { int time_left, hour_left, min_left, digit, x; static int blinked; /* Display if it's plugged in. */ switch (cur_info.ac_line_status) { case AC_LINE_STATUS_ON: draw_image(PLUGGED); break; default: draw_image(UNPLUGGED); } /* Display the appropriate color battery. */ switch (cur_info.battery_status) { case BATTERY_STATUS_HIGH: case BATTERY_STATUS_CHARGING: draw_image(BATTERY_HIGH); break; case BATTERY_STATUS_LOW: draw_image(BATTERY_LOW); break; case BATTERY_STATUS_CRITICAL: /* blinking red battery */ if (blinked) draw_image(BATTERY_CRITICAL); else draw_image(BATTERY_BLINK); blinked = !blinked; break; default: draw_image(BATTERY_NONE); } /* Show if the battery is charging. */ if (cur_info.battery_flags & BATTERY_FLAGS_CHARGING) draw_image(CHARGING); else draw_image(NOCHARGING); /* * Display the percent left dial. This has the side effect of * clearing the time left field. */ x = DIAL_MULTIPLIER * cur_info.battery_percentage; if (x >= 0) { /* Start by displaying bright on the dial. */ copy_image(DIAL_BRIGHT, 0, 0, x, image_info[DIAL_BRIGHT].height, image_info[DIAL_BRIGHT].x, image_info[DIAL_BRIGHT].y); } /* Now display dim on the remainder of the dial. */ copy_image(DIAL_DIM, x, 0, image_info[DIAL_DIM].width - x, image_info[DIAL_DIM].height, image_info[DIAL_DIM].x + x, image_info[DIAL_DIM].y); /* Show percent remaining */ if (cur_info.battery_percentage >= 0) { digit = cur_info.battery_percentage / 10; if (digit == 10) { /* 11 is the `1' for the hundreds place. */ draw_letter(11, SMALLFONT, HUNDREDS_OFFSET); digit = 0; } draw_letter(digit, SMALLFONT, TENS_OFFSET); digit = cur_info.battery_percentage % 10; draw_letter(digit, SMALLFONT, ONES_OFFSET); } else { /* There is no battery, so we need to dim out the * percent sign that is normally bright. */ draw_letter(10, SMALLFONT, PERCENT_OFFSET); } /* Show time left */ /* A negative number means that it is unknown. Dim the field. */ if (cur_info.battery_time < 0) { draw_letter(10, BIGFONT, COLON_OFFSET); redraw_window(); return; } if (cur_info.using_minutes) time_left = cur_info.battery_time; else time_left = cur_info.battery_time / 60; hour_left = time_left / 60; min_left = time_left % 60; digit = hour_left / 10; draw_letter(digit, BIGFONT, HOURS_TENS_OFFSET); digit = hour_left % 10; draw_letter(digit, BIGFONT, HOURS_ONES_OFFSET); digit = min_left / 10; draw_letter(digit, BIGFONT, MINUTES_TENS_OFFSET); digit = min_left % 10; draw_letter(digit, BIGFONT, MINUTES_ONES_OFFSET); redraw_window(); } void snd_crit(void) { int audio, n; if (crit_audio) { audio = open("/dev/audio", O_WRONLY); if (audio >= 0) { n = write(audio, crit_audio, crit_audio_size); if (n != crit_audio_size) fprintf(stderr, "write failed (%d/%d bytes)\n", n, crit_audio_size); close(audio); } } } void alarmhandler(int sig) { apm_info cur_info; int old_status; #ifdef UPOWER if (use_upower) { if (upower_read(1, &cur_info) != 0) error("Cannot read upower information."); } else if (use_acpi) { #else if (use_acpi) { #endif if (acpi_read(battnum, &cur_info) != 0) error("Cannot read ACPI information."); } #ifdef HAL else if (use_simplehal) { if (simplehal_read(battnum, &cur_info) != 0) error("Cannot read HAL information."); } #endif else if (!use_sonypi) { if (apm_read(&cur_info) != 0) error("Cannot read APM information."); } else { if (sonypi_read(&cur_info) != 0) error("Cannot read sonypi information."); } old_status = cur_info.battery_status; /* Always calculate remaining lifetime? apm and acpi both use a * negative number here to indicate error, missing battery, or * cannot determine time. */ if (always_estimate_remaining || cur_info.battery_time < 0) estimate_timeleft(&cur_info); /* Override the battery status? */ if ((low_pct > -1 || critical_pct > -1) && cur_info.ac_line_status != AC_LINE_STATUS_ON) { if (cur_info.battery_percentage <= critical_pct) cur_info.battery_status = BATTERY_STATUS_CRITICAL; else if (cur_info.battery_percentage <= low_pct) cur_info.battery_status = BATTERY_STATUS_LOW; else cur_info.battery_status = BATTERY_STATUS_HIGH; } /* If APM data changes redraw and wait for next update */ /* Always redraw if the status is critical, to make it blink. */ if (!apm_change(&cur_info) || cur_info.battery_status == BATTERY_STATUS_CRITICAL) recalc_window(cur_info); if ((old_status == BATTERY_STATUS_HIGH) && (cur_info.battery_status == BATTERY_STATUS_LOW)) { snd_crit(); } else if (cur_info.battery_status == BATTERY_STATUS_CRITICAL) { snd_crit(); cmd_crit(crit_command, cur_info.battery_percentage, cur_info.battery_time); } alarm(delay); } void check_battery_num(int real, int requested) { if (requested > real || requested < 1) { error("There %s only %i batter%s, and you asked for number %i.", real == 1 ? "is" : "are", real, real == 1 ? "y" : "ies", requested); } } int main(int argc, char *argv[]) { make_window(parse_commandline(argc, argv), argc, argv); /* Check for APM support (returns 0 on success). */ if (apm_exists() == 0) { if (!delay) delay = 1; } #ifdef HAL /* Check for hal support. */ else if (simplehal_supported()) { use_simplehal = 1; if (!delay) delay = 2; } #endif #ifdef UPOWER else if (upower_supported()) { use_upower = 1; delay = 2; } #endif /* Check for ACPI support. */ else if (acpi_supported() && acpi_batt_count > 0) { check_battery_num(acpi_batt_count, battnum); use_acpi = 1; if (!delay) delay = 3; /* slow interface! */ } else if (sonypi_supported()) { use_sonypi = 1; low_pct = 10; critical_pct = 5; if (!delay) delay = 1; } else { error("No APM, ACPI, UPOWER, HAL or SPIC support detected."); } load_images(); load_audio(); signal(SIGALRM, alarmhandler); alarmhandler(SIGALRM); while (1) { XEvent ev; XNextEvent(display, &ev); if (ev.type == Expose) redraw_window(); } }