| 191 | } |
| 192 | |
| 193 | void |
| 194 | timer_spkr_setfreq(int freq) |
| 195 | { |
| 196 | |
| 197 | freq = i8254_freq / freq; |
| 198 | mtx_lock_spin(&clock_lock); |
| 199 | outb(TIMER_CNTR2, freq & 0xff); |
| 200 | outb(TIMER_CNTR2, freq >> 8); |
| 201 | mtx_unlock_spin(&clock_lock); |
| 202 | } |
| 203 | |
| 204 | static int |
| 205 | getit(void) |