[lcd4linux @ 2004-02-15 21:43:43 by reinelt]

T6963 driver nearly finished
framework for graphic displays done
i2c_sensors patch from Xavier
some more old generation files removed

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@367 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 93 insertions, 79 deletions

diff --git a/plugin_i2c_sensors.c b/plugin_i2c_sensors.c
index 0c08b81..662f6c2 100644
--- a/plugin_i2c_sensors.c
+++ b/plugin_i2c_sensors.c
@@ -1,8 +1,9 @@
-/* $Id: plugin_i2c_sensors.c,v 1.10 2004/02/14 12:07:27 nicowallmeier Exp $
+/* $Id: plugin_i2c_sensors.c,v 1.11 2004/02/15 21:43:43 reinelt Exp $
  *
  * I2C sensors plugin
  *
  * Copyright 2003,2004 Xavier Vello <xavier66@free.fr>
+ * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> 
  *
  * This file is part of LCD4Linux.
  *
@@ -22,6 +23,12 @@
  *
  *
  * $Log: plugin_i2c_sensors.c,v $
+ * Revision 1.11  2004/02/15 21:43:43  reinelt
+ * T6963 driver nearly finished
+ * framework for graphic displays done
+ * i2c_sensors patch from Xavier
+ * some more old generation files removed
+ *
  * Revision 1.10  2004/02/14 12:07:27  nicowallmeier
  * minor bugfix
  *
@@ -41,7 +48,6 @@
  * loadavg() uClibc replacement from Martin Heyl
  * round() uClibc replacement from Martin Hejl
  * warning in i2c_sensors fixed
- * [
  *
  * Revision 1.5  2004/01/29 05:55:30  reinelt
  * check for /sys mounted
@@ -59,7 +65,6 @@
  *
  * I2C Sensors plugin from Xavier added
  *
- *
  */
 
 /* 
@@ -67,22 +72,34 @@
  *
  * int plugin_init_i2c_sensors (void)
  *  adds function i2c_sensors() to retrieve informations from
- *  the i2c sensors via the sysfs interface of 2.6.x kernels
+ *  the i2c sensors via sysfs or procfs interface
  *
  * -- WARNING --
- * This plugin is only for kernel series 2.5/2.6 and higher !
- * It uses the new sysfs pseudo-filesystem that you can mount with:
- *       mount -t sysfs none /sys
- *
- * -- WARNING #2 --
  * 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 :
- *   i2c_sensors-path '/sys/bus/i2c/devices/0-6000/'
- *   (replace 0-6000 with the appropriate dir)
- *
+ * 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"
@@ -104,25 +121,31 @@
 #endif
 
 static char *path=NULL;
+static int use_sysfs=0;
 static HASH I2Csensors = { 0, };
 
+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#
+};
+
 	/***********************************************\
 	* Parsing for new 2.6 kernels 'sysfs' interface *
 	\***********************************************/
-static int parse_i2c_sensors_sysfs(RESULT *arg)
+
+static int parse_i2c_sensors_sysfs(char *key)
 {
   double value;
   char val[32];
   char buffer[32];
-  char *key=R2S(arg);
   char file[64];
   FILE *stream;
 
-  // construct absolute path to the file to read
   strcpy(file, path);
   strcat(file, key);
 
-  // read of file to buffer
   stream=fopen(file, "r");
   if (stream==NULL) {
     error ("fopen(%s) failed",file);
@@ -153,51 +176,52 @@ static int parse_i2c_sensors_sysfs(RESULT *arg)
     // we supress this nasty \n at the end
     val[strlen(val)-1]='\0';
   } 
-  
+ 
   hash_set (&I2Csensors, key, val);
-  return 0; 
 
-}  
+  return 0; 
 
-void my_i2c_sensors_sysfs(RESULT *result, RESULT *arg)
-{
-  int age;
-  char *val;
-  char *key=R2S(arg);  
-  
-  age=hash_age(&I2Csensors, key, &val);
-  // refresh every 100msec
-  if (age<0 || age>100) {
-    parse_i2c_sensors_sysfs(arg);
-    val=hash_get(&I2Csensors, key);
-  }
-  if (val) {
-    SetResult(&result, R_STRING, val); 
-  } else {
-    SetResult(&result, R_STRING, "??"); 
-  }
 }
 
-
 	/************************************************\
 	* Parsing for old 2.4 kernels 'procfs' interface *
 	\************************************************/
 
-static int parse_i2c_sensors_procfs(RESULT *arg)
+static int parse_i2c_sensors_procfs(char *key)
 {
-  char *key=R2S(arg);
-  char file[64];    
+  char file[64];
   FILE *stream;
   char buffer[32];
 
   char *value;
   char *running;
   int pos=0;
-  const char delim[3]= " \n";
+  const char delim[3]=" \n";
   char final_key[32];
-
+  char *number = &key[strlen(key)-1];
+  int tokens_index;
+  //debug("%s  ->  %s", key, number);
   strcpy(file, path);
-  strcat(file, key);
+
+  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) {
@@ -211,15 +235,17 @@ static int parse_i2c_sensors_procfs(RESULT *arg)
     error ("%s empty ?!",file);	  
     return -1;
   }
-  
+
   running=strdupa(buffer);
   while(1) {
     value = strsep (&running, delim);
-    //    debug("%s pos %i -> %s", key, pos , value);
-    if (!value) {
+    debug("%s pos %i -> %s", file, pos , value);
+    if (!value || !strcmp(value, "")) {
+      debug("%s pos %i -> BREAK", file, pos);
       break;
     } else {
-      sprintf (final_key, "%s.%i", key, pos);
+      sprintf (final_key, "%s%s", procfs_tokens[tokens_index][pos], number);
+      debug ("%s -> %s", final_key, value);
       hash_set (&I2Csensors, final_key, value);
       pos++;
     }
@@ -227,29 +253,23 @@ static int parse_i2c_sensors_procfs(RESULT *arg)
   return 0;
 }  
 
-void my_i2c_sensors_procfs(RESULT *result, int argc, RESULT *argv[])
+	/*****************************************\
+	* Common functions (path search and init) *
+	\*****************************************/
+
+void my_i2c_sensors(RESULT *result, RESULT *arg)
 {
   int age;
   char *val;
-  char *key;  
+  char *key=R2S(arg);  
   
-  switch (argc) {
-  case 1:
-    sprintf(key, "%s.0", R2S(argv[0]));
-    break;
-  case 2:
-    sprintf(key, "%s.%s", R2S(argv[0]), R2S(argv[1]));
-    break;
-  default:
-    return;  
-    break;
-  }
-
   age=hash_age(&I2Csensors, key, &val);
-
-  // refresh every 100msec
-  if (age<0 || age>100) {
-    parse_i2c_sensors_procfs(argv[0]);
+  if (age<0 || age>250) {
+    if (use_sysfs) {
+      parse_i2c_sensors_sysfs(key);
+    } else {
+      parse_i2c_sensors_procfs(key);    
+    }
     val=hash_get(&I2Csensors, key);
   }
   if (val) {
@@ -259,10 +279,6 @@ void my_i2c_sensors_procfs(RESULT *result, int argc, RESULT *argv[])
   }
 }
 
-	/*****************************************\
-	* Common functions (path search and init) *
-	\*****************************************/
-
 void my_i2c_sensors_path(char *method)
 {
   struct dirent *dir;
@@ -277,11 +293,10 @@ void my_i2c_sensors_path(char *method)
     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 ;)
+    //base="/sensors_2.4/";		// fake dir to test without rebooting 2.4 ;)
   } else {
     return; 
   }
-
   
   fd1 = opendir(base);
   if (!fd1) {
@@ -295,9 +310,9 @@ void my_i2c_sensors_path(char *method)
   
   while((dir = readdir(fd1)))   {
     // Skip non-directories and '.' and '..'
-    if (dir->d_type!=DT_DIR || 
-	strcmp(dir->d_name, "." )==0 ||
-	strcmp(dir->d_name, "..")==0) {
+    if (dir->d_type!=DT_DIR ||
+       strcmp(dir->d_name, "." )==0 ||
+       strcmp(dir->d_name, "..")==0) {
       continue;
     }
 
@@ -327,7 +342,7 @@ int plugin_init_i2c_sensors (void)
   char *path_cfg=cfg_get(NULL, "i2c_sensors-path", "");
 
   if (strncmp(path_cfg, "/", 1)) {
-    debug("No path to i2c sensors found in the conf, calling my_i2c_sensors_path()");
+    //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");
@@ -358,11 +373,10 @@ int plugin_init_i2c_sensors (void)
   if (!path) {
     free(path);
   } else {
-    if (!strncmp(path, "/sys", 4)) {
-      AddFunction ("i2c_sensors", 1, my_i2c_sensors_sysfs);
-    } else if (!strncmp(path, "/proc", 5)) {
-      AddFunction ("i2c_sensors", -1, my_i2c_sensors_procfs);
+    if (strncmp(path, "/sys", 4)==0) {
+      use_sysfs=1;
     }
+    AddFunction ("i2c_sensors", 1, my_i2c_sensors);
   }
  
   return 0;