linux_usr/v3_user_dvfs.c

   1 #include <unistd.h>
   2 #include <sys/stat.h>
   3 #include <fcntl.h>
   4 #include <malloc.h>
   5 #include <string.h>
   6 #include <stdio.h>
   7
   8 #include "v3_ctrl.h"
   9 #include "v3_user_dvfs.h"
  10
  11 int v3_user_dvfs_acquire_direct(uint32_t core)
  12 {
  13     struct v3_dvfs_ctrl_request r;
  14
  15     r.cmd=V3_DVFS_ACQUIRE;
  16     r.acq_type=V3_DVFS_DIRECT;
  17     r.pcore=core;
  18     r.freq_khz=0;
  19     r.pstate=0;
  20
  21     return v3_dev_ioctl(V3_DVFS_CTRL,&r);
  22 }
  23
  24 int v3_user_dvfs_acquire_external(uint32_t core)
  25 {
  26     struct v3_dvfs_ctrl_request r;
  27
  28     r.cmd=V3_DVFS_ACQUIRE;
  29     r.acq_type=V3_DVFS_EXTERNAL;
  30     r.pcore=core;
  31     r.freq_khz=0;
  32     r.pstate=0;
  33
  34     return v3_dev_ioctl(V3_DVFS_CTRL,&r);
  35 }
  36
  37 int v3_user_dvfs_release(uint32_t core)
  38 {
  39     struct v3_dvfs_ctrl_request r;
  40
  41     r.cmd=V3_DVFS_RELEASE;
  42     r.acq_type=V3_DVFS_DIRECT;
  43     r.pcore=core;
  44     r.freq_khz=0;
  45     r.pstate=0;
  46
  47     return v3_dev_ioctl(V3_DVFS_CTRL,&r);
  48 }
  49
  50
  51 int v3_user_dvfs_set_pstate(uint32_t core, uint8_t pstate)
  52 {
  53     struct v3_dvfs_ctrl_request r;
  54
  55     r.cmd=V3_DVFS_SETPSTATE;
  56     r.acq_type=V3_DVFS_DIRECT;
  57     r.pcore=core;
  58     r.freq_khz=0;
  59     r.pstate=pstate;
  60
  61     return v3_dev_ioctl(V3_DVFS_CTRL,&r);
  62 }
  63
  64 int v3_user_dvfs_set_freq(uint32_t core, uint64_t freq_khz)
  65 {
  66     struct v3_dvfs_ctrl_request r;
  67
  68     r.cmd=V3_DVFS_SETFREQ;
  69     r.acq_type=V3_DVFS_EXTERNAL;
  70     r.pcore=core;
  71     r.freq_khz=freq_khz;
  72     r.pstate=0;
  73
  74     return v3_dev_ioctl(V3_DVFS_CTRL,&r);
  75 }
  76