void
SYS_NetBSD_Initialise(void)
{
static struct nlist nl[] = {
{"_tickadj"},
{"_bigadj"},
{NULL}
};
kvm_t *kt;
FILE *fp;
kt = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL);
if (!kt) {
LOG_FATAL(LOGF_SysNetBSD, "Cannot open kvm");
}
if (kvm_nlist(kt, nl) < 0) {
LOG_FATAL(LOGF_SysNetBSD, "Cannot read kernel symbols");
}
if (kvm_read(kt, nl[0].n_value, (char *)(&kern_tickadj), sizeof(int)) < 0) {
LOG_FATAL(LOGF_SysNetBSD, "Cannot read from _tickadj");
}
if (kvm_read(kt, nl[1].n_value, (char *)(&kern_bigadj), sizeof(long)) < 0) {
/* kernel doesn't have the symbol, use one second instead */
kern_bigadj = 1000000;
}
kvm_close(kt);
clock_initialise();
lcl_RegisterSystemDrivers(read_frequency, set_frequency,
accrue_offset, apply_step_offset,
get_offset_correction,
NULL /* set_leap */);
}
void
SYS_Generic_CompleteFreqDriver(double max_set_freq_ppm, double max_set_freq_delay,
lcl_ReadFrequencyDriver sys_read_freq,
lcl_SetFrequencyDriver sys_set_freq,
lcl_ApplyStepOffsetDriver sys_apply_step_offset,
double min_fastslew_offset, double max_fastslew_rate,
lcl_AccrueOffsetDriver sys_accrue_offset,
lcl_OffsetCorrectionDriver sys_get_offset_correction,
lcl_SetLeapDriver sys_set_leap,
lcl_SetSyncStatusDriver sys_set_sync_status)
{
max_freq = max_set_freq_ppm;
max_freq_change_delay = max_set_freq_delay * (1.0 + max_freq / 1.0e6);
drv_read_freq = sys_read_freq;
drv_set_freq = sys_set_freq;
drv_accrue_offset = sys_accrue_offset;
drv_get_offset_correction = sys_get_offset_correction;
drv_set_sync_status = sys_set_sync_status;
base_freq = (*drv_read_freq)();
slew_freq = 0.0;
offset_register = 0.0;
max_corr_freq = CNF_GetMaxSlewRate() / 1.0e6;
fastslew_min_offset = min_fastslew_offset;
fastslew_max_rate = max_fastslew_rate / 1.0e6;
fastslew_active = 0;
lcl_RegisterSystemDrivers(read_frequency, set_frequency,
accrue_offset, sys_apply_step_offset ?
sys_apply_step_offset : apply_step_offset,
offset_convert, sys_set_leap, set_sync_status);
LCL_AddParameterChangeHandler(handle_step, NULL);
}
