wmlongrun/src/longrun_freebsd.c

   1 /*
   2  * longrun_freebsd.c - module to get LongRun(TM) status, for FreeBSD
   3  *
   4  * Copyright(C) 2001,2002 Seiichi SATO <ssato@sh.rim.or.jp>
   5  *
   6  * licensed under the GPL
   7  */
   8
   9 #ifdef HAVE_CONFIG_H
  10 #include "config.h"
  11 #endif
  12
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #if defined(HAVE_STRING_H)
  16 #include <string.h>
  17 #elif defined(HAVE_STRINGS_H)
  18 #include <strings.h>
  19 #endif
  20 #include <unistd.h>
  21 #include <err.h>
  22 #include <sys/sysctl.h>
  23 #include <sys/file.h>
  24 #include "longrun.h"
  25 #include "common.h"
  26
  27 #define LONGRUN_MODE_MINFREQUENCY       0x00
  28 #define LONGRUN_MODE_ECONOMY            0x01
  29 #define LONGRUN_MODE_PERFORMANCE        0x02
  30 #define LONGRUN_MODE_MAXFREQUENCY       0x03
  31
  32 void
  33 longrun_init(char *dummy, char *dummy2)
  34 {
  35     /* You don't need initialization under FreeBSD */
  36 }
  37
  38 /*
  39  * percent:  performance level (0 to 100)
  40  * flags:    performance/economy/unknown
  41  * mhz:      frequency
  42  * volts:    voltage
  43  */
  44 void
  45 longrun_get_stat(int *percent, int *flags, int *mhz, int *voltz)
  46 {
  47     u_int ret_val;
  48     size_t len;
  49
  50     *percent = *mhz = *voltz = *flags = 0;
  51
  52     /* level */
  53     len = sizeof(ret_val);
  54     if (sysctlbyname("hw.crusoe.percentage", &ret_val, &len, NULL, 0) == 0)
  55         *percent = (int) ret_val;
  56
  57     /* frequency */
  58     if (sysctlbyname("hw.crusoe.frequency", &ret_val, &len, NULL, 0) == 0)
  59         *mhz = (int) ret_val;
  60
  61     /* voltage */
  62     if (sysctlbyname("hw.crusoe.voltage", &ret_val, &len, NULL, 0) == 0)
  63         *voltz = (int) ret_val;
  64
  65     /* flags */
  66     if (sysctlbyname("hw.crusoe.longrun", &ret_val, &len, NULL, 0) == 0) {
  67         switch (ret_val) {
  68         case LONGRUN_MODE_MINFREQUENCY:
  69         case LONGRUN_MODE_ECONOMY:
  70             *flags = LONGRUN_FLAGS_ECONOMY;
  71             break;
  72         case LONGRUN_MODE_PERFORMANCE:
  73         case LONGRUN_MODE_MAXFREQUENCY:
  74             *flags = LONGRUN_FLAGS_PEFORMANCE;
  75             break;
  76         default:
  77             *flags = LONGRUN_FLAGS_UNKNOWN;
  78         }
  79     }
  80 }