Lines Matching full:ptp
3 * PTP 1588 clock support
79 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_settime() local
81 if (ptp_clock_freerun(ptp)) { in ptp_clock_settime()
82 pr_err("ptp: physical clock is free running\n"); in ptp_clock_settime()
86 return ptp->info->settime64(ptp->info, tp); in ptp_clock_settime()
91 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_gettime() local
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()
103 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_adjtime() local
108 ptp_clock_freerun(ptp)) { in ptp_clock_adjtime()
109 pr_err("ptp: physical clock is free running\n"); in ptp_clock_adjtime()
113 ops = ptp->info; in ptp_clock_adjtime()
138 ptp->dialed_frequency = tx->freq; in ptp_clock_adjtime()
153 tx->freq = ptp->dialed_frequency; in ptp_clock_adjtime()
174 struct ptp_clock *ptp = container_of(dev, struct ptp_clock, dev); in ptp_clock_release() local
176 ptp_cleanup_pin_groups(ptp); in ptp_clock_release()
177 kfree(ptp->vclock_index); in ptp_clock_release()
178 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_release()
179 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_release()
180 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_release()
181 ida_free(&ptp_clocks_map, ptp->index); in ptp_clock_release()
182 kfree(ptp); in ptp_clock_release()
193 static int ptp_enable(struct ptp_clock_info *ptp, struct ptp_clock_request *request, int on) in ptp_enable() argument
200 struct ptp_clock *ptp = container_of(work, struct ptp_clock, in ptp_aux_kworker() local
202 struct ptp_clock_info *info = ptp->info; in ptp_aux_kworker()
208 kthread_queue_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_aux_kworker()
216 struct ptp_clock *ptp; in ptp_clock_register() local
225 ptp = kzalloc(sizeof(struct ptp_clock), GFP_KERNEL); in ptp_clock_register()
226 if (ptp == NULL) in ptp_clock_register()
235 ptp->clock.ops = ptp_clock_ops; in ptp_clock_register()
236 ptp->info = info; in ptp_clock_register()
237 ptp->devid = MKDEV(major, index); in ptp_clock_register()
238 ptp->index = index; in ptp_clock_register()
239 spin_lock_init(&ptp->tsevq.lock); in ptp_clock_register()
240 mutex_init(&ptp->tsevq_mux); in ptp_clock_register()
241 mutex_init(&ptp->pincfg_mux); in ptp_clock_register()
242 mutex_init(&ptp->n_vclocks_mux); in ptp_clock_register()
243 init_waitqueue_head(&ptp->tsev_wq); in ptp_clock_register()
245 if (ptp->info->getcycles64 || ptp->info->getcyclesx64) { in ptp_clock_register()
246 ptp->has_cycles = true; in ptp_clock_register()
247 if (!ptp->info->getcycles64 && ptp->info->getcyclesx64) in ptp_clock_register()
248 ptp->info->getcycles64 = ptp_getcycles64; in ptp_clock_register()
251 ptp->info->getcycles64 = ptp_getcycles64; in ptp_clock_register()
253 if (ptp->info->gettimex64) in ptp_clock_register()
254 ptp->info->getcyclesx64 = ptp->info->gettimex64; in ptp_clock_register()
256 if (ptp->info->getcrosststamp) in ptp_clock_register()
257 ptp->info->getcrosscycles = ptp->info->getcrosststamp; in ptp_clock_register()
260 if (!ptp->info->enable) in ptp_clock_register()
261 ptp->info->enable = ptp_enable; in ptp_clock_register()
263 if (ptp->info->do_aux_work) { in ptp_clock_register()
264 kthread_init_delayed_work(&ptp->aux_work, ptp_aux_kworker); in ptp_clock_register()
265 ptp->kworker = kthread_create_worker(0, "ptp%d", ptp->index); in ptp_clock_register()
266 if (IS_ERR(ptp->kworker)) { in ptp_clock_register()
267 err = PTR_ERR(ptp->kworker); in ptp_clock_register()
268 pr_err("failed to create ptp aux_worker %d\n", err); in ptp_clock_register()
273 /* PTP virtual clock is being registered under physical clock */ in ptp_clock_register()
275 strcmp(parent->class->name, "ptp") == 0) in ptp_clock_register()
276 ptp->is_virtual_clock = true; in ptp_clock_register()
278 if (!ptp->is_virtual_clock) { in ptp_clock_register()
279 ptp->max_vclocks = PTP_DEFAULT_MAX_VCLOCKS; in ptp_clock_register()
281 size = sizeof(int) * ptp->max_vclocks; in ptp_clock_register()
282 ptp->vclock_index = kzalloc(size, GFP_KERNEL); in ptp_clock_register()
283 if (!ptp->vclock_index) { in ptp_clock_register()
289 err = ptp_populate_pin_groups(ptp); in ptp_clock_register()
297 snprintf(pps.name, PPS_MAX_NAME_LEN, "ptp%d", index); in ptp_clock_register()
300 ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS); in ptp_clock_register()
301 if (IS_ERR(ptp->pps_source)) { in ptp_clock_register()
302 err = PTR_ERR(ptp->pps_source); in ptp_clock_register()
306 ptp->pps_source->lookup_cookie = ptp; in ptp_clock_register()
310 device_initialize(&ptp->dev); in ptp_clock_register()
311 ptp->dev.devt = ptp->devid; in ptp_clock_register()
312 ptp->dev.class = ptp_class; in ptp_clock_register()
313 ptp->dev.parent = parent; in ptp_clock_register()
314 ptp->dev.groups = ptp->pin_attr_groups; in ptp_clock_register()
315 ptp->dev.release = ptp_clock_release; in ptp_clock_register()
316 dev_set_drvdata(&ptp->dev, ptp); in ptp_clock_register()
317 dev_set_name(&ptp->dev, "ptp%d", ptp->index); in ptp_clock_register()
320 err = posix_clock_register(&ptp->clock, &ptp->dev); in ptp_clock_register()
322 if (ptp->pps_source) in ptp_clock_register()
323 pps_unregister_source(ptp->pps_source); in ptp_clock_register()
325 if (ptp->kworker) in ptp_clock_register()
326 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
328 put_device(&ptp->dev); in ptp_clock_register()
334 return ptp; in ptp_clock_register()
337 ptp_cleanup_pin_groups(ptp); in ptp_clock_register()
339 kfree(ptp->vclock_index); in ptp_clock_register()
341 if (ptp->kworker) in ptp_clock_register()
342 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
344 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_register()
345 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_register()
346 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_register()
349 kfree(ptp); in ptp_clock_register()
357 struct ptp_clock *ptp = dev_get_drvdata(dev); in unregister_vclock() local
359 ptp_vclock_unregister(info_to_vclock(ptp->info)); in unregister_vclock()
363 int ptp_clock_unregister(struct ptp_clock *ptp) in ptp_clock_unregister() argument
365 if (ptp_vclock_in_use(ptp)) { in ptp_clock_unregister()
366 device_for_each_child(&ptp->dev, NULL, unregister_vclock); in ptp_clock_unregister()
369 ptp->defunct = 1; in ptp_clock_unregister()
370 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_unregister()
372 if (ptp->kworker) { in ptp_clock_unregister()
373 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_clock_unregister()
374 kthread_destroy_worker(ptp->kworker); in ptp_clock_unregister()
378 if (ptp->pps_source) in ptp_clock_unregister()
379 pps_unregister_source(ptp->pps_source); in ptp_clock_unregister()
381 posix_clock_unregister(&ptp->clock); in ptp_clock_unregister()
387 void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event) in ptp_clock_event() argument
397 enqueue_external_timestamp(&ptp->tsevq, event); in ptp_clock_event()
398 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_event()
403 pps_event(ptp->pps_source, &evt, PTP_PPS_EVENT, NULL); in ptp_clock_event()
407 pps_event(ptp->pps_source, &event->pps_times, in ptp_clock_event()
414 int ptp_clock_index(struct ptp_clock *ptp) in ptp_clock_index() argument
416 return ptp->index; in ptp_clock_index()
420 int ptp_find_pin(struct ptp_clock *ptp, in ptp_find_pin() argument
426 for (i = 0; i < ptp->info->n_pins; i++) { in ptp_find_pin()
427 if (ptp->info->pin_config[i].func == func && in ptp_find_pin()
428 ptp->info->pin_config[i].chan == chan) { in ptp_find_pin()
429 pin = &ptp->info->pin_config[i]; in ptp_find_pin()
438 int ptp_find_pin_unlocked(struct ptp_clock *ptp, in ptp_find_pin_unlocked() argument
443 mutex_lock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
445 result = ptp_find_pin(ptp, func, chan); in ptp_find_pin_unlocked()
447 mutex_unlock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
453 int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay) in ptp_schedule_worker() argument
455 return kthread_mod_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_schedule_worker()
459 void ptp_cancel_worker_sync(struct ptp_clock *ptp) in ptp_cancel_worker_sync() argument
461 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_cancel_worker_sync()
478 ptp_class = class_create("ptp"); in ptp_init()
480 pr_err("ptp: failed to allocate class\n"); in ptp_init()
484 err = alloc_chrdev_region(&ptp_devt, 0, MINORMASK + 1, "ptp"); in ptp_init()
486 pr_err("ptp: failed to allocate device region\n"); in ptp_init()
491 pr_info("PTP clock support registered\n"); in ptp_init()
503 MODULE_DESCRIPTION("PTP clocks support");