resources/acpi_cpu/tests/acpi_cpu_test.c

   1 #include <frsh.h>
   2
   3 int main()
   4 {
   5         frsh_power_level_t level;
   6         int power_levels;
   7         double speed;
   8         int terror;
   9
  10         PXW(frsh_init());
  11
  12         PXW(frsh_resource_get_num_power_levels(FRSH_RT_PROCESSOR, 0, &power_levels));
  13         printf("Number of power levels suppoerted: %d\n", power_levels);
  14
  15         if (power_levels == 1)
  16                 PERROR_AND_EXIT(EINVAL, "Different power levels not supported");
  17
  18         PXW(frsh_resource_get_power_level(FRSH_RT_PROCESSOR, 0, &level));
  19         PXW(frsh_resource_get_speed(FRSH_RT_PROCESSOR, 0, level, &speed));
  20         printf("Starting with power level %d, speed = %f\n", level, speed);
  21
  22         sleep(3);
  23         PXW(frsh_resource_set_power_level(FRSH_RT_PROCESSOR, 0, FRSH_PLT_HIGH));
  24         PXW(frsh_resource_get_power_level(FRSH_RT_PROCESSOR, 0, &level));
  25         PXW(frsh_resource_get_speed(FRSH_RT_PROCESSOR, 0, level, &speed));
  26         printf("%d (FRSH_PLT_HIGH) correctly set, speed = %f\n", level, speed);
  27
  28         sleep(3);
  29         PXW(frsh_resource_set_power_level(FRSH_RT_PROCESSOR, 0, FRSH_PLT_MEDIUM));
  30         PXW(frsh_resource_get_power_level(FRSH_RT_PROCESSOR, 0, &level));
  31         PXW(frsh_resource_get_speed(FRSH_RT_PROCESSOR, 0, level, &speed));
  32         printf("%d (FRSH_PLT_MEDIUM) correctly set, speed = %f\n", level, speed);
  33
  34         sleep(3);
  35         PXW(frsh_resource_set_power_level(FRSH_RT_PROCESSOR, 0, FRSH_PLT_LOW));
  36         PXW(frsh_resource_get_power_level(FRSH_RT_PROCESSOR, 0, &level));
  37         PXW(frsh_resource_get_speed(FRSH_RT_PROCESSOR, 0, level, &speed));
  38         printf("%d (FRSH_PLT_LOW) correctly set, speed = %f\n", level, speed);
  39
  40         return 0;
  41 }
  42