Lines Matching refs:dln2
126 struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent); in dln2_register_event_cb() local
139 spin_lock_irqsave(&dln2->event_cb_lock, flags); in dln2_register_event_cb()
141 list_for_each_entry(i, &dln2->event_cb_list, list) { in dln2_register_event_cb()
149 list_add_rcu(&entry->list, &dln2->event_cb_list); in dln2_register_event_cb()
151 spin_unlock_irqrestore(&dln2->event_cb_lock, flags); in dln2_register_event_cb()
162 struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent); in dln2_unregister_event_cb() local
167 spin_lock_irqsave(&dln2->event_cb_lock, flags); in dln2_unregister_event_cb()
169 list_for_each_entry(i, &dln2->event_cb_list, list) { in dln2_unregister_event_cb()
177 spin_unlock_irqrestore(&dln2->event_cb_lock, flags); in dln2_unregister_event_cb()
191 static bool dln2_transfer_complete(struct dln2_dev *dln2, struct urb *urb, in dln2_transfer_complete() argument
194 struct device *dev = &dln2->interface->dev; in dln2_transfer_complete()
195 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle]; in dln2_transfer_complete()
224 static void dln2_run_event_callbacks(struct dln2_dev *dln2, u16 id, u16 echo, in dln2_run_event_callbacks() argument
231 list_for_each_entry_rcu(i, &dln2->event_cb_list, list) { in dln2_run_event_callbacks()
243 struct dln2_dev *dln2 = urb->context; in dln2_rx() local
245 struct device *dev = &dln2->interface->dev; in dln2_rx()
292 dln2_run_event_callbacks(dln2, id, echo, data, len); in dln2_rx()
295 if (dln2_transfer_complete(dln2, urb, handle, echo)) in dln2_rx()
330 static int dln2_send_wait(struct dln2_dev *dln2, u16 handle, u16 cmd, u16 echo, in dln2_send_wait() argument
342 ret = usb_bulk_msg(dln2->usb_dev, in dln2_send_wait()
343 usb_sndbulkpipe(dln2->usb_dev, dln2->ep_out), in dln2_send_wait()
351 static bool find_free_slot(struct dln2_dev *dln2, u16 handle, int *slot) in find_free_slot() argument
356 if (dln2->disconnect) { in find_free_slot()
361 rxs = &dln2->mod_rx_slots[handle]; in find_free_slot()
379 static int alloc_rx_slot(struct dln2_dev *dln2, u16 handle) in alloc_rx_slot() argument
388 ret = wait_event_interruptible(dln2->mod_rx_slots[handle].wq, in alloc_rx_slot()
389 find_free_slot(dln2, handle, &slot)); in alloc_rx_slot()
396 static void free_rx_slot(struct dln2_dev *dln2, u16 handle, int slot) in free_rx_slot() argument
403 rxs = &dln2->mod_rx_slots[handle]; in free_rx_slot()
419 struct device *dev = &dln2->interface->dev; in free_rx_slot()
429 static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, in _dln2_transfer() argument
437 struct device *dev = &dln2->interface->dev; in _dln2_transfer()
439 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle]; in _dln2_transfer()
442 spin_lock(&dln2->disconnect_lock); in _dln2_transfer()
443 if (!dln2->disconnect) in _dln2_transfer()
444 dln2->active_transfers++; in _dln2_transfer()
447 spin_unlock(&dln2->disconnect_lock); in _dln2_transfer()
452 rx_slot = alloc_rx_slot(dln2, handle); in _dln2_transfer()
458 ret = dln2_send_wait(dln2, handle, cmd, rx_slot, obuf, obuf_len); in _dln2_transfer()
475 if (dln2->disconnect) { in _dln2_transfer()
505 free_rx_slot(dln2, handle, rx_slot); in _dln2_transfer()
507 spin_lock(&dln2->disconnect_lock); in _dln2_transfer()
508 dln2->active_transfers--; in _dln2_transfer()
509 spin_unlock(&dln2->disconnect_lock); in _dln2_transfer()
510 if (dln2->disconnect) in _dln2_transfer()
511 wake_up(&dln2->disconnect_wq); in _dln2_transfer()
521 struct dln2_dev *dln2; in dln2_transfer() local
524 dln2 = dev_get_drvdata(pdev->dev.parent); in dln2_transfer()
528 return _dln2_transfer(dln2, handle, cmd, obuf, obuf_len, ibuf, in dln2_transfer()
533 static int dln2_check_hw(struct dln2_dev *dln2) in dln2_check_hw() argument
539 ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_VER, in dln2_check_hw()
547 dev_err(&dln2->interface->dev, "Device ID 0x%x not supported\n", in dln2_check_hw()
555 static int dln2_print_serialno(struct dln2_dev *dln2) in dln2_print_serialno() argument
560 struct device *dev = &dln2->interface->dev; in dln2_print_serialno()
562 ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_SN, NULL, 0, in dln2_print_serialno()
574 static int dln2_hw_init(struct dln2_dev *dln2) in dln2_hw_init() argument
578 ret = dln2_check_hw(dln2); in dln2_hw_init()
582 return dln2_print_serialno(dln2); in dln2_hw_init()
585 static void dln2_free_rx_urbs(struct dln2_dev *dln2) in dln2_free_rx_urbs() argument
590 usb_free_urb(dln2->rx_urb[i]); in dln2_free_rx_urbs()
591 kfree(dln2->rx_buf[i]); in dln2_free_rx_urbs()
595 static void dln2_stop_rx_urbs(struct dln2_dev *dln2) in dln2_stop_rx_urbs() argument
600 usb_kill_urb(dln2->rx_urb[i]); in dln2_stop_rx_urbs()
603 static void dln2_free(struct dln2_dev *dln2) in dln2_free() argument
605 dln2_free_rx_urbs(dln2); in dln2_free()
606 usb_put_dev(dln2->usb_dev); in dln2_free()
607 kfree(dln2); in dln2_free()
610 static int dln2_setup_rx_urbs(struct dln2_dev *dln2, in dln2_setup_rx_urbs() argument
617 dln2->rx_buf[i] = kmalloc(rx_max_size, GFP_KERNEL); in dln2_setup_rx_urbs()
618 if (!dln2->rx_buf[i]) in dln2_setup_rx_urbs()
621 dln2->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); in dln2_setup_rx_urbs()
622 if (!dln2->rx_urb[i]) in dln2_setup_rx_urbs()
625 usb_fill_bulk_urb(dln2->rx_urb[i], dln2->usb_dev, in dln2_setup_rx_urbs()
626 usb_rcvbulkpipe(dln2->usb_dev, dln2->ep_in), in dln2_setup_rx_urbs()
627 dln2->rx_buf[i], rx_max_size, dln2_rx, dln2); in dln2_setup_rx_urbs()
633 static int dln2_start_rx_urbs(struct dln2_dev *dln2, gfp_t gfp) in dln2_start_rx_urbs() argument
635 struct device *dev = &dln2->interface->dev; in dln2_start_rx_urbs()
640 ret = usb_submit_urb(dln2->rx_urb[i], gfp); in dln2_start_rx_urbs()
684 static void dln2_stop(struct dln2_dev *dln2) in dln2_stop() argument
689 spin_lock(&dln2->disconnect_lock); in dln2_stop()
690 dln2->disconnect = true; in dln2_stop()
691 spin_unlock(&dln2->disconnect_lock); in dln2_stop()
695 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[i]; in dln2_stop()
712 wait_event(dln2->disconnect_wq, !dln2->active_transfers); in dln2_stop()
714 dln2_stop_rx_urbs(dln2); in dln2_stop()
719 struct dln2_dev *dln2 = usb_get_intfdata(interface); in dln2_disconnect() local
721 dln2_stop(dln2); in dln2_disconnect()
725 dln2_free(dln2); in dln2_disconnect()
733 struct dln2_dev *dln2; in dln2_probe() local
741 dln2 = kzalloc(sizeof(*dln2), GFP_KERNEL); in dln2_probe()
742 if (!dln2) in dln2_probe()
745 dln2->ep_out = hostif->endpoint[0].desc.bEndpointAddress; in dln2_probe()
746 dln2->ep_in = hostif->endpoint[1].desc.bEndpointAddress; in dln2_probe()
747 dln2->usb_dev = usb_get_dev(interface_to_usbdev(interface)); in dln2_probe()
748 dln2->interface = interface; in dln2_probe()
749 usb_set_intfdata(interface, dln2); in dln2_probe()
750 init_waitqueue_head(&dln2->disconnect_wq); in dln2_probe()
753 init_waitqueue_head(&dln2->mod_rx_slots[i].wq); in dln2_probe()
754 spin_lock_init(&dln2->mod_rx_slots[i].lock); in dln2_probe()
756 init_completion(&dln2->mod_rx_slots[i].slots[j].done); in dln2_probe()
759 spin_lock_init(&dln2->event_cb_lock); in dln2_probe()
760 spin_lock_init(&dln2->disconnect_lock); in dln2_probe()
761 INIT_LIST_HEAD(&dln2->event_cb_list); in dln2_probe()
763 ret = dln2_setup_rx_urbs(dln2, hostif); in dln2_probe()
767 ret = dln2_start_rx_urbs(dln2, GFP_KERNEL); in dln2_probe()
771 ret = dln2_hw_init(dln2); in dln2_probe()
786 dln2_stop_rx_urbs(dln2); in dln2_probe()
789 dln2_free(dln2); in dln2_probe()
796 struct dln2_dev *dln2 = usb_get_intfdata(iface); in dln2_suspend() local
798 dln2_stop(dln2); in dln2_suspend()
805 struct dln2_dev *dln2 = usb_get_intfdata(iface); in dln2_resume() local
807 dln2->disconnect = false; in dln2_resume()
809 return dln2_start_rx_urbs(dln2, GFP_NOIO); in dln2_resume()