main.c:
=============================================================================
palSetPadMode(IOPORTA, 27, PAL_MODE_OUTPUT_PUSHPULL);

pal.h:
=============================================================================
#if !defined(pal_lld_setpadmode) || defined(__DOXYGEN__)
#define palSetPadMode(port, pad, mode)                                      \
  palSetGroupMode(port, PAL_PORT_BIT(pad), 0, mode)
#else
#define palSetPadMode(port, pad, mode) pal_lld_setpadmode(port, pad, mode)
#endif

#if !defined(pal_lld_setgroupmode) || defined(__DOXYGEN__)
#define palSetGroupMode(port, mask, offset, mode)
#else
#define palSetGroupMode(port, mask, offset, mode)                           \
  pal_lld_setgroupmode(port, mask, offset, mode)
#endif

pal_lld.h:
=============================================================================
/*
#define pal_lld_setgroupmode(port, mask, offset, mode)                      \
  _pal_lld_setgroupmode(port, mask << offset, mode)
*/