Lines Matching refs:ptp
79 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
81 if (ptp_clock_freerun(ptp)) {
82 pr_err("ptp: physical clock is free running\n");
86 return ptp->info->settime64(ptp->info, tp);
91 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
94 if (ptp->info->gettimex64)
95 err = ptp->info->gettimex64(ptp->info, tp, NULL);
97 err = ptp->info->gettime64(ptp->info, tp);
103 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
107 if (ptp_clock_freerun(ptp)) {
108 pr_err("ptp: physical clock is free running\n");
112 ops = ptp->info;
136 ptp->dialed_frequency = tx->freq;
151 tx->freq = ptp->dialed_frequency;
172 struct ptp_clock *ptp = container_of(dev, struct ptp_clock, dev);
174 ptp_cleanup_pin_groups(ptp);
175 kfree(ptp->vclock_index);
176 mutex_destroy(&ptp->tsevq_mux);
177 mutex_destroy(&ptp->pincfg_mux);
178 mutex_destroy(&ptp->n_vclocks_mux);
179 ida_free(&ptp_clocks_map, ptp->index);
180 kfree(ptp);
193 struct ptp_clock *ptp = container_of(work, struct ptp_clock,
195 struct ptp_clock_info *info = ptp->info;
201 kthread_queue_delayed_work(ptp->kworker, &ptp->aux_work, delay);
209 struct ptp_clock *ptp;
218 ptp = kzalloc(sizeof(struct ptp_clock), GFP_KERNEL);
219 if (ptp == NULL)
228 ptp->clock.ops = ptp_clock_ops;
229 ptp->info = info;
230 ptp->devid = MKDEV(major, index);
231 ptp->index = index;
232 spin_lock_init(&ptp->tsevq.lock);
233 mutex_init(&ptp->tsevq_mux);
234 mutex_init(&ptp->pincfg_mux);
235 mutex_init(&ptp->n_vclocks_mux);
236 init_waitqueue_head(&ptp->tsev_wq);
238 if (ptp->info->getcycles64 || ptp->info->getcyclesx64) {
239 ptp->has_cycles = true;
240 if (!ptp->info->getcycles64 && ptp->info->getcyclesx64)
241 ptp->info->getcycles64 = ptp_getcycles64;
244 ptp->info->getcycles64 = ptp_getcycles64;
246 if (ptp->info->gettimex64)
247 ptp->info->getcyclesx64 = ptp->info->gettimex64;
249 if (ptp->info->getcrosststamp)
250 ptp->info->getcrosscycles = ptp->info->getcrosststamp;
253 if (ptp->info->do_aux_work) {
254 kthread_init_delayed_work(&ptp->aux_work, ptp_aux_kworker);
255 ptp->kworker = kthread_create_worker(0, "ptp%d", ptp->index);
256 if (IS_ERR(ptp->kworker)) {
257 err = PTR_ERR(ptp->kworker);
258 pr_err("failed to create ptp aux_worker %d\n", err);
265 strcmp(parent->class->name, "ptp") == 0)
266 ptp->is_virtual_clock = true;
268 if (!ptp->is_virtual_clock) {
269 ptp->max_vclocks = PTP_DEFAULT_MAX_VCLOCKS;
271 size = sizeof(int) * ptp->max_vclocks;
272 ptp->vclock_index = kzalloc(size, GFP_KERNEL);
273 if (!ptp->vclock_index) {
279 err = ptp_populate_pin_groups(ptp);
287 snprintf(pps.name, PPS_MAX_NAME_LEN, "ptp%d", index);
290 ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS);
291 if (IS_ERR(ptp->pps_source)) {
292 err = PTR_ERR(ptp->pps_source);
296 ptp->pps_source->lookup_cookie = ptp;
300 device_initialize(&ptp->dev);
301 ptp->dev.devt = ptp->devid;
302 ptp->dev.class = ptp_class;
303 ptp->dev.parent = parent;
304 ptp->dev.groups = ptp->pin_attr_groups;
305 ptp->dev.release = ptp_clock_release;
306 dev_set_drvdata(&ptp->dev, ptp);
307 dev_set_name(&ptp->dev, "ptp%d", ptp->index);
310 err = posix_clock_register(&ptp->clock, &ptp->dev);
312 if (ptp->pps_source)
313 pps_unregister_source(ptp->pps_source);
315 if (ptp->kworker)
316 kthread_destroy_worker(ptp->kworker);
318 put_device(&ptp->dev);
324 return ptp;
327 ptp_cleanup_pin_groups(ptp);
329 kfree(ptp->vclock_index);
331 if (ptp->kworker)
332 kthread_destroy_worker(ptp->kworker);
334 mutex_destroy(&ptp->tsevq_mux);
335 mutex_destroy(&ptp->pincfg_mux);
336 mutex_destroy(&ptp->n_vclocks_mux);
339 kfree(ptp);
347 struct ptp_clock *ptp = dev_get_drvdata(dev);
349 ptp_vclock_unregister(info_to_vclock(ptp->info));
353 int ptp_clock_unregister(struct ptp_clock *ptp)
355 if (ptp_vclock_in_use(ptp)) {
356 device_for_each_child(&ptp->dev, NULL, unregister_vclock);
359 ptp->defunct = 1;
360 wake_up_interruptible(&ptp->tsev_wq);
362 if (ptp->kworker) {
363 kthread_cancel_delayed_work_sync(&ptp->aux_work);
364 kthread_destroy_worker(ptp->kworker);
368 if (ptp->pps_source)
369 pps_unregister_source(ptp->pps_source);
371 posix_clock_unregister(&ptp->clock);
377 void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event)
387 enqueue_external_timestamp(&ptp->tsevq, event);
388 wake_up_interruptible(&ptp->tsev_wq);
393 pps_event(ptp->pps_source, &evt, PTP_PPS_EVENT, NULL);
397 pps_event(ptp->pps_source, &event->pps_times,
404 int ptp_clock_index(struct ptp_clock *ptp)
406 return ptp->index;
410 int ptp_find_pin(struct ptp_clock *ptp,
416 for (i = 0; i < ptp->info->n_pins; i++) {
417 if (ptp->info->pin_config[i].func == func &&
418 ptp->info->pin_config[i].chan == chan) {
419 pin = &ptp->info->pin_config[i];
428 int ptp_find_pin_unlocked(struct ptp_clock *ptp,
433 mutex_lock(&ptp->pincfg_mux);
435 result = ptp_find_pin(ptp, func, chan);
437 mutex_unlock(&ptp->pincfg_mux);
443 int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay)
445 return kthread_mod_delayed_work(ptp->kworker, &ptp->aux_work, delay);
449 void ptp_cancel_worker_sync(struct ptp_clock *ptp)
451 kthread_cancel_delayed_work_sync(&ptp->aux_work);
468 ptp_class = class_create("ptp");
470 pr_err("ptp: failed to allocate class\n");
474 err = alloc_chrdev_region(&ptp_devt, 0, MINORMASK + 1, "ptp");
476 pr_err("ptp: failed to allocate device region\n");