diff options
Diffstat (limited to '')
| -rw-r--r-- | bin/fbatt.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/bin/fbatt.c b/bin/fbatt.c deleted file mode 100644 index 8b7e6e40..00000000 --- a/bin/fbatt.c +++ /dev/null @@ -1,123 +0,0 @@ -/* Copyright (C) 2018 June McEnroe <june@causal.agency> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <dirent.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <linux/fb.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sysexits.h> -#include <unistd.h> - -#include "scheme.h" - -static const char *Class = "/sys/class/power_supply"; - -static const uint32_t Right = 5 * 8 + 1; // fbclock width. -static const uint32_t Width = 8; -static const uint32_t Height = 16; - -int main() { - int error; - - DIR *dir = opendir(Class); - if (!dir) err(EX_OSFILE, "%s", Class); - - FILE *chargeFull = NULL; - FILE *chargeNow = NULL; - - const struct dirent *entry; - while (NULL != (errno = 0, entry = readdir(dir))) { - if (entry->d_name[0] == '.') continue; - - error = chdir(Class); - if (error) err(EX_OSFILE, "%s", Class); - - error = chdir(entry->d_name); - if (error) err(EX_OSFILE, "%s/%s", Class, entry->d_name); - - chargeFull = fopen("charge_full", "r"); - chargeNow = fopen("charge_now", "r"); - if (chargeFull && chargeNow) break; - } - if (!chargeFull || !chargeNow) { - if (errno) err(EX_OSFILE, "%s", Class); - errx(EX_CONFIG, "%s: empty", Class); - } - closedir(dir); - - const char *path = getenv("FRAMEBUFFER"); - if (!path) path = "/dev/fb0"; - - int fb = open(path, O_RDWR); - if (fb < 0) err(EX_OSFILE, "%s", path); - - struct fb_var_screeninfo info; - error = ioctl(fb, FBIOGET_VSCREENINFO, &info); - if (error) err(EX_IOERR, "%s", path); - - size_t size = 4 * info.xres * info.yres; - uint32_t *buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0); - if (buf == MAP_FAILED) err(EX_IOERR, "%s", path); - - for (;;) { - int match; - - rewind(chargeFull); - fflush(chargeFull); - uint32_t full; - match = fscanf(chargeFull, "%u", &full); - if (match == EOF) err(EX_IOERR, "charge_full"); - if (match < 1) errx(EX_DATAERR, "charge_full"); - - rewind(chargeNow); - fflush(chargeNow); - uint32_t now; - match = fscanf(chargeNow, "%u", &now); - if (match == EOF) err(EX_IOERR, "charge_now"); - if (match < 1) errx(EX_DATAERR, "charge_now"); - - uint32_t percent = 100 * now / full; - uint32_t height = 16 * now / full; - - for (int i = 0; i < 60; ++i, sleep(1)) { - uint32_t left = info.xres - Right - Width; - - for (uint32_t y = 0; y <= Height; ++y) { - buf[y * info.xres + left - 1] = DarkWhite; - buf[y * info.xres + left + Width] = DarkWhite; - } - for (uint32_t x = left; x < left + Width; ++x) { - buf[Height * info.xres + x] = DarkWhite; - } - - for (uint32_t y = 0; y < Height; ++y) { - for (uint32_t x = left; x < left + Width; ++x) { - buf[y * info.xres + x] = - (Height - 1 - y > height) ? DarkBlack - : (percent <= 10) ? DarkRed - : (percent <= 30) ? DarkYellow - : LightBlack; - } - } - } - } -} |