Lines Matching +full:tx +full:- +full:freq
1 // SPDX-License-Identifier: GPL-2.0-or-later
13 #include <linux/posix-clock.h>
39 return PTP_MAX_TIMESTAMPS - queue_cnt(q) - 1; in queue_free()
50 seconds = div_u64_rem(src->timestamp, 1000000000, &remainder); in enqueue_external_timestamp()
52 spin_lock_irqsave(&queue->lock, flags); in enqueue_external_timestamp()
54 dst = &queue->buf[queue->tail]; in enqueue_external_timestamp()
55 dst->index = src->index; in enqueue_external_timestamp()
56 dst->t.sec = seconds; in enqueue_external_timestamp()
57 dst->t.nsec = remainder; in enqueue_external_timestamp()
61 WRITE_ONCE(queue->head, (queue->head + 1) % PTP_MAX_TIMESTAMPS); in enqueue_external_timestamp()
63 WRITE_ONCE(queue->tail, (queue->tail + 1) % PTP_MAX_TIMESTAMPS); in enqueue_external_timestamp()
65 spin_unlock_irqrestore(&queue->lock, flags); in enqueue_external_timestamp()
72 tp->tv_sec = 0; in ptp_clock_getres()
73 tp->tv_nsec = 1; in ptp_clock_getres()
83 return -EBUSY; in ptp_clock_settime()
86 return ptp->info->settime64(ptp->info, tp); in ptp_clock_settime()
94 if (ptp->info->gettimex64) in ptp_clock_gettime()
95 err = ptp->info->gettimex64(ptp->info, tp, NULL); in ptp_clock_gettime()
97 err = ptp->info->gettime64(ptp->info, tp); in ptp_clock_gettime()
101 static int ptp_clock_adjtime(struct posix_clock *pc, struct __kernel_timex *tx) in ptp_clock_adjtime() argument
105 int err = -EOPNOTSUPP; in ptp_clock_adjtime()
109 return -EBUSY; in ptp_clock_adjtime()
112 ops = ptp->info; in ptp_clock_adjtime()
114 if (tx->modes & ADJ_SETOFFSET) { in ptp_clock_adjtime()
119 ts.tv_sec = tx->time.tv_sec; in ptp_clock_adjtime()
120 ts.tv_nsec = tx->time.tv_usec; in ptp_clock_adjtime()
122 if (!(tx->modes & ADJ_NANO)) in ptp_clock_adjtime()
126 return -EINVAL; in ptp_clock_adjtime()
130 err = ops->adjtime(ops, delta); in ptp_clock_adjtime()
131 } else if (tx->modes & ADJ_FREQUENCY) { in ptp_clock_adjtime()
132 long ppb = scaled_ppm_to_ppb(tx->freq); in ptp_clock_adjtime()
133 if (ppb > ops->max_adj || ppb < -ops->max_adj) in ptp_clock_adjtime()
134 return -ERANGE; in ptp_clock_adjtime()
135 err = ops->adjfine(ops, tx->freq); in ptp_clock_adjtime()
137 ptp->dialed_frequency = tx->freq; in ptp_clock_adjtime()
138 } else if (tx->modes & ADJ_OFFSET) { in ptp_clock_adjtime()
139 if (ops->adjphase) { in ptp_clock_adjtime()
140 s32 max_phase_adj = ops->getmaxphase(ops); in ptp_clock_adjtime()
141 s32 offset = tx->offset; in ptp_clock_adjtime()
143 if (!(tx->modes & ADJ_NANO)) in ptp_clock_adjtime()
146 if (offset > max_phase_adj || offset < -max_phase_adj) in ptp_clock_adjtime()
147 return -ERANGE; in ptp_clock_adjtime()
149 err = ops->adjphase(ops, offset); in ptp_clock_adjtime()
151 } else if (tx->modes == 0) { in ptp_clock_adjtime()
152 tx->freq = ptp->dialed_frequency; in ptp_clock_adjtime()
176 kfree(ptp->vclock_index); in ptp_clock_release()
177 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_release()
178 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_release()
179 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_release()
180 ida_free(&ptp_clocks_map, ptp->index); in ptp_clock_release()
186 if (info->getcyclesx64) in ptp_getcycles64()
187 return info->getcyclesx64(info, ts, NULL); in ptp_getcycles64()
189 return info->gettime64(info, ts); in ptp_getcycles64()
194 return -EOPNOTSUPP; in ptp_enable()
201 struct ptp_clock_info *info = ptp->info; in ptp_aux_kworker()
204 delay = info->do_aux_work(info); in ptp_aux_kworker()
207 kthread_queue_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_aux_kworker()
219 if (info->n_alarm > PTP_MAX_ALARMS) in ptp_clock_register()
220 return ERR_PTR(-EINVAL); in ptp_clock_register()
223 err = -ENOMEM; in ptp_clock_register()
234 ptp->clock.ops = ptp_clock_ops; in ptp_clock_register()
235 ptp->info = info; in ptp_clock_register()
236 ptp->devid = MKDEV(major, index); in ptp_clock_register()
237 ptp->index = index; in ptp_clock_register()
238 spin_lock_init(&ptp->tsevq.lock); in ptp_clock_register()
239 mutex_init(&ptp->tsevq_mux); in ptp_clock_register()
240 mutex_init(&ptp->pincfg_mux); in ptp_clock_register()
241 mutex_init(&ptp->n_vclocks_mux); in ptp_clock_register()
242 init_waitqueue_head(&ptp->tsev_wq); in ptp_clock_register()
244 if (ptp->info->getcycles64 || ptp->info->getcyclesx64) { in ptp_clock_register()
245 ptp->has_cycles = true; in ptp_clock_register()
246 if (!ptp->info->getcycles64 && ptp->info->getcyclesx64) in ptp_clock_register()
247 ptp->info->getcycles64 = ptp_getcycles64; in ptp_clock_register()
250 ptp->info->getcycles64 = ptp_getcycles64; in ptp_clock_register()
252 if (ptp->info->gettimex64) in ptp_clock_register()
253 ptp->info->getcyclesx64 = ptp->info->gettimex64; in ptp_clock_register()
255 if (ptp->info->getcrosststamp) in ptp_clock_register()
256 ptp->info->getcrosscycles = ptp->info->getcrosststamp; in ptp_clock_register()
259 if (!ptp->info->enable) in ptp_clock_register()
260 ptp->info->enable = ptp_enable; in ptp_clock_register()
262 if (ptp->info->do_aux_work) { in ptp_clock_register()
263 kthread_init_delayed_work(&ptp->aux_work, ptp_aux_kworker); in ptp_clock_register()
264 ptp->kworker = kthread_create_worker(0, "ptp%d", ptp->index); in ptp_clock_register()
265 if (IS_ERR(ptp->kworker)) { in ptp_clock_register()
266 err = PTR_ERR(ptp->kworker); in ptp_clock_register()
273 if (parent && parent->class && parent->class->name && in ptp_clock_register()
274 strcmp(parent->class->name, "ptp") == 0) in ptp_clock_register()
275 ptp->is_virtual_clock = true; in ptp_clock_register()
277 if (!ptp->is_virtual_clock) { in ptp_clock_register()
278 ptp->max_vclocks = PTP_DEFAULT_MAX_VCLOCKS; in ptp_clock_register()
280 size = sizeof(int) * ptp->max_vclocks; in ptp_clock_register()
281 ptp->vclock_index = kzalloc(size, GFP_KERNEL); in ptp_clock_register()
282 if (!ptp->vclock_index) { in ptp_clock_register()
283 err = -ENOMEM; in ptp_clock_register()
293 if (info->pps) { in ptp_clock_register()
298 pps.owner = info->owner; in ptp_clock_register()
299 ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS); in ptp_clock_register()
300 if (IS_ERR(ptp->pps_source)) { in ptp_clock_register()
301 err = PTR_ERR(ptp->pps_source); in ptp_clock_register()
305 ptp->pps_source->lookup_cookie = ptp; in ptp_clock_register()
309 device_initialize(&ptp->dev); in ptp_clock_register()
310 ptp->dev.devt = ptp->devid; in ptp_clock_register()
311 ptp->dev.class = ptp_class; in ptp_clock_register()
312 ptp->dev.parent = parent; in ptp_clock_register()
313 ptp->dev.groups = ptp->pin_attr_groups; in ptp_clock_register()
314 ptp->dev.release = ptp_clock_release; in ptp_clock_register()
315 dev_set_drvdata(&ptp->dev, ptp); in ptp_clock_register()
316 dev_set_name(&ptp->dev, "ptp%d", ptp->index); in ptp_clock_register()
319 err = posix_clock_register(&ptp->clock, &ptp->dev); in ptp_clock_register()
321 if (ptp->pps_source) in ptp_clock_register()
322 pps_unregister_source(ptp->pps_source); in ptp_clock_register()
324 if (ptp->kworker) in ptp_clock_register()
325 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
327 put_device(&ptp->dev); in ptp_clock_register()
338 kfree(ptp->vclock_index); in ptp_clock_register()
340 if (ptp->kworker) in ptp_clock_register()
341 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
343 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_register()
344 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_register()
345 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_register()
358 ptp_vclock_unregister(info_to_vclock(ptp->info)); in unregister_vclock()
365 device_for_each_child(&ptp->dev, NULL, unregister_vclock); in ptp_clock_unregister()
368 ptp->defunct = 1; in ptp_clock_unregister()
369 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_unregister()
371 if (ptp->kworker) { in ptp_clock_unregister()
372 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_clock_unregister()
373 kthread_destroy_worker(ptp->kworker); in ptp_clock_unregister()
377 if (ptp->pps_source) in ptp_clock_unregister()
378 pps_unregister_source(ptp->pps_source); in ptp_clock_unregister()
380 posix_clock_unregister(&ptp->clock); in ptp_clock_unregister()
390 switch (event->type) { in ptp_clock_event()
396 enqueue_external_timestamp(&ptp->tsevq, event); in ptp_clock_event()
397 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_event()
402 pps_event(ptp->pps_source, &evt, PTP_PPS_EVENT, NULL); in ptp_clock_event()
406 pps_event(ptp->pps_source, &event->pps_times, in ptp_clock_event()
415 return ptp->index; in ptp_clock_index()
425 for (i = 0; i < ptp->info->n_pins; i++) { in ptp_find_pin()
426 if (ptp->info->pin_config[i].func == func && in ptp_find_pin()
427 ptp->info->pin_config[i].chan == chan) { in ptp_find_pin()
428 pin = &ptp->info->pin_config[i]; in ptp_find_pin()
433 return pin ? i : -1; in ptp_find_pin()
442 mutex_lock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
446 mutex_unlock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
454 return kthread_mod_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_schedule_worker()
460 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_cancel_worker_sync()
489 ptp_class->dev_groups = ptp_groups; in ptp_init()