mirror of
https://github.com/Llewellynvdm/conky.git
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175 lines
5.0 KiB
C++
175 lines
5.0 KiB
C++
/*
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*
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* smapi.c: conky support for IBM Thinkpad smapi
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*
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* Copyright (C) 2007 Phil Sutter <Phil@nwl.cc>
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*
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* This library 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 2 of the License, or
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* (at your option) any later version.
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*
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* This library 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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*
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* You should have received a copy of the GNU General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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* USA.
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*
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "conky.h" /* text_buffer_size, PACKAGE_NAME, maybe more */
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#include "logging.h"
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#include "temphelper.h"
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#define SYS_SMAPI_PATH "/sys/devices/platform/smapi"
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static int smapi_read_int(const char *path) {
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FILE *fp;
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int i = 0;
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if ((fp = fopen(path, "r"))) {
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if (fscanf(fp, "%i\n", &i) < 0) perror("fscanf()");
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fclose(fp);
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}
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return i;
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}
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static int smapi_bat_installed_internal(int idx) {
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char path[128];
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struct stat sb;
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int ret = 0;
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snprintf(path, 127, SYS_SMAPI_PATH "/BAT%i", idx);
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if (!stat(path, &sb) && (sb.st_mode & S_IFMT) == S_IFDIR) {
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snprintf(path, 127, SYS_SMAPI_PATH "/BAT%i/installed", idx);
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ret = (smapi_read_int(path) == 1) ? 1 : 0;
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}
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return ret;
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}
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static char *smapi_read_str(const char *path) {
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FILE *fp;
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char str[256] = "failed";
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if ((fp = fopen(path, "r")) != nullptr) {
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if (fscanf(fp, "%255s\n", str) < 0) perror("fscanf()");
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fclose(fp);
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}
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return strndup(str, text_buffer_size.get(*state));
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}
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static char *smapi_get_str(const char *fname) {
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char path[128];
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if (snprintf(path, 127, SYS_SMAPI_PATH "/%s", fname) < 0) return nullptr;
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return smapi_read_str(path);
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}
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static char *smapi_get_bat_str(int idx, const char *fname) {
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char path[128];
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if (snprintf(path, 127, SYS_SMAPI_PATH "/BAT%i/%s", idx, fname) < 0)
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return nullptr;
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return smapi_read_str(path);
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}
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static int smapi_get_bat_int(int idx, const char *fname) {
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char path[128];
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if (snprintf(path, 127, SYS_SMAPI_PATH "/BAT%i/%s", idx, fname) < 0) return 0;
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return smapi_read_int(path);
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}
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static char *smapi_get_bat_val(const char *args) {
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char fname[128];
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int idx, cnt;
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if (sscanf(args, "%i %n", &idx, &cnt) <= 0 ||
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snprintf(fname, 127, "%s", (args + cnt)) < 0) {
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NORM_ERR("smapi: wrong arguments, should be 'bat,<int>,<str>'");
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return nullptr;
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}
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if (!smapi_bat_installed_internal(idx)) return nullptr;
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return smapi_get_bat_str(idx, fname);
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}
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static char *smapi_get_val(const char *args) {
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char str[128];
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if (!args || sscanf(args, "%127s", str) <= 0) return nullptr;
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if (!strcmp(str, "bat")) return smapi_get_bat_val(args + 4);
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return smapi_get_str(str);
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}
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void print_smapi(struct text_object *obj, char *p, unsigned int p_max_size) {
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char *s;
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if (!obj->data.s) return;
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s = smapi_get_val(obj->data.s);
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snprintf(p, p_max_size, "%s", s);
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free(s);
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}
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uint8_t smapi_bat_percentage(struct text_object *obj) {
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int idx, val = 0;
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if (obj->data.s && sscanf(obj->data.s, "%i", &idx) == 1) {
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val = smapi_bat_installed_internal(idx)
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? smapi_get_bat_int(idx, "remaining_percent")
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: 0;
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} else
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NORM_ERR("argument to smapi_bat_perc must be an integer");
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return val;
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}
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void print_smapi_bat_temp(struct text_object *obj, char *p,
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unsigned int p_max_size) {
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int idx, val;
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if (obj->data.s && sscanf(obj->data.s, "%i", &idx) == 1) {
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val = smapi_bat_installed_internal(idx)
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? smapi_get_bat_int(idx, "temperature")
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: 0;
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/* temperature is in milli degree celsius */
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temp_print(p, p_max_size, val / 1000, TEMP_CELSIUS, 1);
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} else
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NORM_ERR("argument to smapi_bat_temp must be an integer");
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}
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void print_smapi_bat_power(struct text_object *obj, char *p,
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unsigned int p_max_size) {
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int idx, val;
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if (obj->data.s && sscanf(obj->data.s, "%i", &idx) == 1) {
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val = smapi_bat_installed_internal(idx)
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? smapi_get_bat_int(idx, "power_now")
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: 0;
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/* power_now is in mW, set to W with one digit precision */
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snprintf(p, p_max_size, "%.1f", ((double)val / 1000));
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} else
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NORM_ERR("argument to smapi_bat_power must be an integer");
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}
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double smapi_bat_barval(struct text_object *obj) {
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if (obj->data.i >= 0 && smapi_bat_installed_internal(obj->data.i))
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return smapi_get_bat_int(obj->data.i, "remaining_percent");
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return 0;
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}
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int smapi_bat_installed(struct text_object *obj) {
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int idx;
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if (obj->data.s && sscanf(obj->data.s, "%i", &idx) == 1) {
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if (!smapi_bat_installed_internal(idx)) { return 0; }
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} else
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NORM_ERR("argument to if_smapi_bat_installed must be an integer");
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return 1;
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}
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