Lines Matching full:ptp
3 * PTP 1588 clock support
78 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_settime() local
80 if (ptp_vclock_in_use(ptp)) { in ptp_clock_settime()
81 pr_err("ptp: virtual clock in use\n"); in ptp_clock_settime()
85 return ptp->info->settime64(ptp->info, tp); in ptp_clock_settime()
90 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_gettime() local
93 if (ptp->info->gettimex64) in ptp_clock_gettime()
94 err = ptp->info->gettimex64(ptp->info, tp, NULL); in ptp_clock_gettime()
96 err = ptp->info->gettime64(ptp->info, tp); in ptp_clock_gettime()
102 struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); in ptp_clock_adjtime() local
106 if (ptp_vclock_in_use(ptp)) { in ptp_clock_adjtime()
107 pr_err("ptp: virtual clock in use\n"); in ptp_clock_adjtime()
111 ops = ptp->info; in ptp_clock_adjtime()
138 ptp->dialed_frequency = tx->freq; in ptp_clock_adjtime()
149 tx->freq = ptp->dialed_frequency; in ptp_clock_adjtime()
170 struct ptp_clock *ptp = container_of(dev, struct ptp_clock, dev); in ptp_clock_release() local
172 ptp_cleanup_pin_groups(ptp); in ptp_clock_release()
173 kfree(ptp->vclock_index); in ptp_clock_release()
174 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_release()
175 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_release()
176 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_release()
177 ida_simple_remove(&ptp_clocks_map, ptp->index); in ptp_clock_release()
178 kfree(ptp); in ptp_clock_release()
183 struct ptp_clock *ptp = container_of(work, struct ptp_clock, in ptp_aux_kworker() local
185 struct ptp_clock_info *info = ptp->info; in ptp_aux_kworker()
191 kthread_queue_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_aux_kworker()
199 struct ptp_clock *ptp; in ptp_clock_register() local
208 ptp = kzalloc(sizeof(struct ptp_clock), GFP_KERNEL); in ptp_clock_register()
209 if (ptp == NULL) in ptp_clock_register()
218 ptp->clock.ops = ptp_clock_ops; in ptp_clock_register()
219 ptp->info = info; in ptp_clock_register()
220 ptp->devid = MKDEV(major, index); in ptp_clock_register()
221 ptp->index = index; in ptp_clock_register()
222 spin_lock_init(&ptp->tsevq.lock); in ptp_clock_register()
223 mutex_init(&ptp->tsevq_mux); in ptp_clock_register()
224 mutex_init(&ptp->pincfg_mux); in ptp_clock_register()
225 mutex_init(&ptp->n_vclocks_mux); in ptp_clock_register()
226 init_waitqueue_head(&ptp->tsev_wq); in ptp_clock_register()
228 if (ptp->info->do_aux_work) { in ptp_clock_register()
229 kthread_init_delayed_work(&ptp->aux_work, ptp_aux_kworker); in ptp_clock_register()
230 ptp->kworker = kthread_create_worker(0, "ptp%d", ptp->index); in ptp_clock_register()
231 if (IS_ERR(ptp->kworker)) { in ptp_clock_register()
232 err = PTR_ERR(ptp->kworker); in ptp_clock_register()
233 pr_err("failed to create ptp aux_worker %d\n", err); in ptp_clock_register()
238 /* PTP virtual clock is being registered under physical clock */ in ptp_clock_register()
240 strcmp(parent->class->name, "ptp") == 0) in ptp_clock_register()
241 ptp->is_virtual_clock = true; in ptp_clock_register()
243 if (!ptp->is_virtual_clock) { in ptp_clock_register()
244 ptp->max_vclocks = PTP_DEFAULT_MAX_VCLOCKS; in ptp_clock_register()
246 size = sizeof(int) * ptp->max_vclocks; in ptp_clock_register()
247 ptp->vclock_index = kzalloc(size, GFP_KERNEL); in ptp_clock_register()
248 if (!ptp->vclock_index) { in ptp_clock_register()
254 err = ptp_populate_pin_groups(ptp); in ptp_clock_register()
262 snprintf(pps.name, PPS_MAX_NAME_LEN, "ptp%d", index); in ptp_clock_register()
265 ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS); in ptp_clock_register()
266 if (IS_ERR(ptp->pps_source)) { in ptp_clock_register()
267 err = PTR_ERR(ptp->pps_source); in ptp_clock_register()
271 ptp->pps_source->lookup_cookie = ptp; in ptp_clock_register()
275 device_initialize(&ptp->dev); in ptp_clock_register()
276 ptp->dev.devt = ptp->devid; in ptp_clock_register()
277 ptp->dev.class = ptp_class; in ptp_clock_register()
278 ptp->dev.parent = parent; in ptp_clock_register()
279 ptp->dev.groups = ptp->pin_attr_groups; in ptp_clock_register()
280 ptp->dev.release = ptp_clock_release; in ptp_clock_register()
281 dev_set_drvdata(&ptp->dev, ptp); in ptp_clock_register()
282 dev_set_name(&ptp->dev, "ptp%d", ptp->index); in ptp_clock_register()
285 err = posix_clock_register(&ptp->clock, &ptp->dev); in ptp_clock_register()
287 if (ptp->pps_source) in ptp_clock_register()
288 pps_unregister_source(ptp->pps_source); in ptp_clock_register()
290 if (ptp->kworker) in ptp_clock_register()
291 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
293 put_device(&ptp->dev); in ptp_clock_register()
299 return ptp; in ptp_clock_register()
302 ptp_cleanup_pin_groups(ptp); in ptp_clock_register()
304 kfree(ptp->vclock_index); in ptp_clock_register()
306 if (ptp->kworker) in ptp_clock_register()
307 kthread_destroy_worker(ptp->kworker); in ptp_clock_register()
309 mutex_destroy(&ptp->tsevq_mux); in ptp_clock_register()
310 mutex_destroy(&ptp->pincfg_mux); in ptp_clock_register()
311 mutex_destroy(&ptp->n_vclocks_mux); in ptp_clock_register()
314 kfree(ptp); in ptp_clock_register()
320 int ptp_clock_unregister(struct ptp_clock *ptp) in ptp_clock_unregister() argument
322 if (ptp_vclock_in_use(ptp)) { in ptp_clock_unregister()
323 pr_err("ptp: virtual clock in use\n"); in ptp_clock_unregister()
327 ptp->defunct = 1; in ptp_clock_unregister()
328 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_unregister()
330 if (ptp->kworker) { in ptp_clock_unregister()
331 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_clock_unregister()
332 kthread_destroy_worker(ptp->kworker); in ptp_clock_unregister()
336 if (ptp->pps_source) in ptp_clock_unregister()
337 pps_unregister_source(ptp->pps_source); in ptp_clock_unregister()
339 posix_clock_unregister(&ptp->clock); in ptp_clock_unregister()
345 void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event) in ptp_clock_event() argument
355 enqueue_external_timestamp(&ptp->tsevq, event); in ptp_clock_event()
356 wake_up_interruptible(&ptp->tsev_wq); in ptp_clock_event()
361 pps_event(ptp->pps_source, &evt, PTP_PPS_EVENT, NULL); in ptp_clock_event()
365 pps_event(ptp->pps_source, &event->pps_times, in ptp_clock_event()
372 int ptp_clock_index(struct ptp_clock *ptp) in ptp_clock_index() argument
374 return ptp->index; in ptp_clock_index()
378 int ptp_find_pin(struct ptp_clock *ptp, in ptp_find_pin() argument
384 for (i = 0; i < ptp->info->n_pins; i++) { in ptp_find_pin()
385 if (ptp->info->pin_config[i].func == func && in ptp_find_pin()
386 ptp->info->pin_config[i].chan == chan) { in ptp_find_pin()
387 pin = &ptp->info->pin_config[i]; in ptp_find_pin()
396 int ptp_find_pin_unlocked(struct ptp_clock *ptp, in ptp_find_pin_unlocked() argument
401 mutex_lock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
403 result = ptp_find_pin(ptp, func, chan); in ptp_find_pin_unlocked()
405 mutex_unlock(&ptp->pincfg_mux); in ptp_find_pin_unlocked()
411 int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay) in ptp_schedule_worker() argument
413 return kthread_mod_delayed_work(ptp->kworker, &ptp->aux_work, delay); in ptp_schedule_worker()
417 void ptp_cancel_worker_sync(struct ptp_clock *ptp) in ptp_cancel_worker_sync() argument
419 kthread_cancel_delayed_work_sync(&ptp->aux_work); in ptp_cancel_worker_sync()
436 ptp_class = class_create(THIS_MODULE, "ptp"); in ptp_init()
438 pr_err("ptp: failed to allocate class\n"); in ptp_init()
442 err = alloc_chrdev_region(&ptp_devt, 0, MINORMASK + 1, "ptp"); in ptp_init()
444 pr_err("ptp: failed to allocate device region\n"); in ptp_init()
449 pr_info("PTP clock support registered\n"); in ptp_init()
461 MODULE_DESCRIPTION("PTP clocks support");