sound/pci/hda/local.h

   1 /*
   2  */
   3
   4 #ifndef __HDAC_LOCAL_H
   5 #define __HDAC_LOCAL_H
   6
   7 int hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm);
   8
   9 #define get_wcaps(codec, nid) \
  10         hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
  11 /* get the widget type from widget capability bits */
  12 static inline int get_wcaps_type(unsigned int wcaps)
  13 {
  14         if (!wcaps)
  15                 return -1; /* invalid type */
  16         return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
  17 }
  18
  19 #define get_pin_caps(codec, nid) \
  20         hdac_read_parm(codec, nid, AC_PAR_PIN_CAP)
  21
  22 static inline
  23 unsigned int get_pin_cfg(struct hdac_device *codec, hda_nid_t nid)
  24 {
  25         unsigned int val;
  26
  27         if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
  28                 return -1;
  29         return val;
  30 }
  31
  32 #define get_amp_caps(codec, nid, dir) \
  33         hdac_read_parm(codec, nid, (dir) == HDA_OUTPUT ? \
  34                        AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP)
  35
  36 #define get_power_caps(codec, nid) \
  37         hdac_read_parm(codec, nid, AC_PAR_POWER_STATE)
  38
  39 #endif /* __HDAC_LOCAL_H */