diff options
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_i2c_sensors.c.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_i2c_sensors.c.svn-base | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_i2c_sensors.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_i2c_sensors.c.svn-base deleted file mode 100644 index 989f97c2..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_i2c_sensors.c.svn-base +++ /dev/null @@ -1,361 +0,0 @@ -/* $Id$ - * $URL$ - * - * I2C sensors plugin - * - * Copyright (C) 2003, 2004 Xavier Vello <xavier66@free.fr> - * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> - * - * This file is part of LCD4Linux. - * - * LCD4Linux is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * LCD4Linux 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* - * exported functions: - * - * int plugin_init_i2c_sensors (void) - * adds function i2c_sensors() to retrieve informations from - * the i2c sensors via sysfs or procfs interface - * - * -- WARNING -- - * This plugin should detect where your sensors are at startup. - * If you can't get any token to work, ensure you don't get - * an error message with "lcd4linux -Fvvv". - * - * If so, try to force the path to your sensors in the conf like this : - * for sysfs: i2c_sensors-path '/sys/bus/i2c/devices/0-6000/' - * for procfs: i2c_sensors-path '/proc/sys/dev/sensors/via686a-isa-6000' - * /!\ these path are for my system, change the last dir according to yours - */ - -/* - * Available tokens : # represents an int from 1 to 3 (or more) - * temp_input# -> temperature of sensor # (in ∞C) - * temp_max# and temp_hyst# -> max and min of sensor # - * in_input#, in_min# and in_max# -> voltages - * fan_input# -> speed (in RPM) of fan # - * fan_min# and fan_div# - * - * Tokens avaible only via sysfs if suported by your sensors: - * curr_input#, curr_min# and curr_max# -> value of current (in amps) - * pwm# - * temp_crit# -> critical value of sensor # - * vid -> cpu core voltage - * and maybe others - * (see /usr/src/linux/Documentation/i2c/sysfs-interface on linux 2.6) - */ - -#include "config.h" - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include <unistd.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> - -#include "debug.h" -#include "plugin.h" -#include "cfg.h" -#include "hash.h" -#include "qprintf.h" -#include "evaluator.h" // if strndup() is not available - -#ifdef WITH_DMALLOC -#include <dmalloc.h> -#endif - -static char *path = NULL; -static HASH I2Csensors; - -static const char *procfs_tokens[4][3] = { - {"temp_hyst", "temp_max", "temp_input"}, /* for temp# */ - {"in_min", "in_max", "in_input"}, /* for in# */ - {"fan_div1", "fan_div2", "fan_div3"}, /* for fan_div */ - {"fan_min", "fan_input", ""} /* for fan# */ -}; - -static int (*parse_i2c_sensors) (const char *key); - - /***********************************************\ - * Parsing for new 2.6 kernels 'sysfs' interface * - \***********************************************/ - -static int parse_i2c_sensors_sysfs(const char *key) -{ - char val[32]; - char buffer[32]; - char file[64]; - FILE *stream; - - strcpy(file, path); - strcat(file, key); - - stream = fopen(file, "r"); - if (stream == NULL) { - error("i2c_sensors: fopen(%s) failed: %s", file, strerror(errno)); - return -1; - } - fgets(buffer, sizeof(buffer), stream); - fclose(stream); - - if (buffer[0] == '\0') { - error("i2c_sensors: %s empty ?!", file); - return -1; - } - - /* now the formating stuff, depending on the file : */ - /* Some values must be divided by 1000, the others */ - /* are parsed directly (we just remove the \n). */ - if (!strncmp(key, "temp", 4) || !strncmp(key, "curr", 4) || !strncmp(key, "in", 2) || !strncmp(key, "vid", 3)) { - snprintf(val, sizeof(val), "%f", strtod(buffer, NULL) / 1000.0); - } else { - qprintf(val, sizeof(val), "%s", buffer); - /* we supress this nasty \n at the end */ - val[strlen(val) - 1] = '\0'; - } - - hash_put(&I2Csensors, key, val); - - return 0; - -} - - /************************************************\ - * Parsing for old 2.4 kernels 'procfs' interface * - \************************************************/ - -static int parse_i2c_sensors_procfs(const char *key) -{ - char file[64]; - FILE *stream; - char buffer[32]; - - char *value; - char *running; - int pos = 0; - const char delim[3] = " \n"; - char final_key[32]; - const char *number = &key[strlen(key) - 1]; - int tokens_index; - /* debug("%s -> %s", key, number); */ - strcpy(file, path); - - if (!strncmp(key, "temp_", 5)) { - tokens_index = 0; - strcat(file, "temp"); - strcat(file, number); - } else if (!strncmp(key, "in_", 3)) { - tokens_index = 1; - strcat(file, "in"); - strcat(file, number); - } else if (!strncmp(key, "fan_div", 7)) { - tokens_index = 2; - strcat(file, "fan_div"); - number = ""; - } else if (!strncmp(key, "fan_", 4)) { - tokens_index = 3; - strcat(file, "fan"); - strcat(file, number); - } else { - return -1; - } - - stream = fopen(file, "r"); - if (stream == NULL) { - error("i2c_sensors: fopen(%s) failed: %s", file, strerror(errno)); - return -1; - } - fgets(buffer, sizeof(buffer), stream); - fclose(stream); - - if (buffer[0] == '\0') { - error("i2c_sensors: %s empty ?!", file); - return -1; - } - - running = strndup(buffer, sizeof(buffer)); - while (1) { - value = strsep(&running, delim); - /* debug("%s pos %i -> %s", file, pos , value); */ - if (!value || !strcmp(value, "")) { - /* debug("%s pos %i -> BREAK", file, pos); */ - break; - } else { - qprintf(final_key, sizeof(final_key), "%s%s", procfs_tokens[tokens_index][pos], number); - /* debug ("%s -> %s", final_key, value); */ - hash_put(&I2Csensors, final_key, value); - pos++; - } - } - free(running); - return 0; -} - - /*****************************************\ - * Common functions (path search and init) * - \*****************************************/ - - -static void my_i2c_sensors_path(const char *method) -{ - struct dirent *dir; - struct dirent *file; - const char *base; - char dname[64]; - DIR *fd1; - DIR *fd2; - int done; - - if (!strcmp(method, "sysfs")) { - base = "/sys/bus/i2c/devices/"; - } else if (!strcmp(method, "procfs")) { - base = "/proc/sys/dev/sensors/"; - /*base="/sensors_2.4/"; // fake dir to test without rebooting 2.4 ;) */ - } else { - return; - } - - fd1 = opendir(base); - if (!fd1) { - return; - } - - while ((dir = readdir(fd1))) { - /* Skip non-directories and '.' and '..' */ - if ((dir->d_type != DT_DIR && dir->d_type != DT_LNK) || strcmp(dir->d_name, ".") == 0 - || strcmp(dir->d_name, "..") == 0) { - continue; - } - - /* dname is the absolute path */ - strcpy(dname, base); - strcat(dname, dir->d_name); - strcat(dname, "/"); - - fd2 = opendir(dname); - done = 0; - while ((file = readdir(fd2))) { - /* FIXME : do all sensors have a temp_input1 ? */ - if (!strcmp(file->d_name, "temp_input1") || !strcmp(file->d_name, "temp1_input") - || !strcmp(file->d_name, "temp1")) { - path = realloc(path, strlen(dname) + 1); - strcpy(path, dname); - done = 1; - break; - } - } - closedir(fd2); - if (done) - break; - } - closedir(fd1); -} - - -static int configure_i2c_sensors(void) -{ - static int configured = 0; - char *path_cfg; - - if (configured != 0) - return configured; - - path_cfg = cfg_get(NULL, "i2c_sensors-path", ""); - if (path_cfg == NULL || *path_cfg == '\0') { - /* debug("No path to i2c sensors found in the conf, calling my_i2c_sensors_path()"); */ - my_i2c_sensors_path("sysfs"); - if (!path) - my_i2c_sensors_path("procfs"); - - if (!path) { - error("i2c_sensors: unable to autodetect i2c sensors!"); - configured = -1; - return configured; - } - - debug("using i2c sensors at %s (autodetected)", path); - - } else { - if (path_cfg[strlen(path_cfg) - 1] != '/') { - /* the headless user forgot the trailing slash :/ */ - error("i2c_sensors: please add a trailing slash to %s from %s", path_cfg, cfg_source()); - path_cfg = realloc(path_cfg, strlen(path_cfg) + 2); - strcat(path_cfg, "/"); - } - debug("using i2c sensors at %s (from %s)", path_cfg, cfg_source()); - path = realloc(path, strlen(path_cfg) + 1); - strcpy(path, path_cfg); - } - if (path_cfg) - free(path_cfg); - - /* we activate the function only if there's a possibly path found */ - if (strncmp(path, "/sys", 4) == 0) { - parse_i2c_sensors = parse_i2c_sensors_sysfs; - } else if (strncmp(path, "/proc", 5) == 0) { - parse_i2c_sensors = parse_i2c_sensors_procfs; - } else { - error("i2c_sensors: unknown path %s, should start with /sys or /proc", path); - configured = -1; - return configured; - } - - hash_create(&I2Csensors); - - configured = 1; - return configured; -} - - -void my_i2c_sensors(RESULT * result, RESULT * arg) -{ - int age; - char *key; - char *val; - - if (configure_i2c_sensors() < 0) { - SetResult(&result, R_STRING, "??"); - return; - } - - key = R2S(arg); - age = hash_age(&I2Csensors, key); - if (age < 0 || age > 250) { - parse_i2c_sensors(key); - } - val = hash_get(&I2Csensors, key, NULL); - if (val) { - SetResult(&result, R_STRING, val); - } else { - SetResult(&result, R_STRING, "??"); - } -} - - -int plugin_init_i2c_sensors(void) -{ - AddFunction("i2c_sensors", 1, my_i2c_sensors); - return 0; -} - - -void plugin_exit_i2c_sensors(void) -{ - hash_destroy(&I2Csensors); -} |