Symbol: IO_PPI
sys/platform/pc64/isa/clock.c
499
outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
sys/platform/pc64/isa/clock.c
518
outb(IO_PPI, inb(IO_PPI) | 3);
sys/platform/pc64/isa/clock.c
715
outb(IO_PPI, inb(IO_PPI) | 1); /* bit 0: enable gate, bit 1: spkr */