Lines Matching refs:dln2
21 #include <linux/mfd/dln2.h>
129 struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent);
142 spin_lock_irqsave(&dln2->event_cb_lock, flags);
144 list_for_each_entry(i, &dln2->event_cb_list, list) {
152 list_add_rcu(&entry->list, &dln2->event_cb_list);
154 spin_unlock_irqrestore(&dln2->event_cb_lock, flags);
165 struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent);
170 spin_lock_irqsave(&dln2->event_cb_lock, flags);
172 list_for_each_entry(i, &dln2->event_cb_list, list) {
180 spin_unlock_irqrestore(&dln2->event_cb_lock, flags);
194 static bool dln2_transfer_complete(struct dln2_dev *dln2, struct urb *urb,
197 struct device *dev = &dln2->interface->dev;
198 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle];
223 static void dln2_run_event_callbacks(struct dln2_dev *dln2, u16 id, u16 echo,
230 list_for_each_entry_rcu(i, &dln2->event_cb_list, list) {
242 struct dln2_dev *dln2 = urb->context;
244 struct device *dev = &dln2->interface->dev;
293 spin_lock_irqsave(&dln2->event_cb_lock, flags);
294 dln2_run_event_callbacks(dln2, id, echo, data, len);
295 spin_unlock_irqrestore(&dln2->event_cb_lock, flags);
298 if (dln2_transfer_complete(dln2, urb, handle, echo))
333 static int dln2_send_wait(struct dln2_dev *dln2, u16 handle, u16 cmd, u16 echo,
345 ret = usb_bulk_msg(dln2->usb_dev,
346 usb_sndbulkpipe(dln2->usb_dev, dln2->ep_out),
354 static bool find_free_slot(struct dln2_dev *dln2, u16 handle, int *slot)
359 if (dln2->disconnect) {
364 rxs = &dln2->mod_rx_slots[handle];
382 static int alloc_rx_slot(struct dln2_dev *dln2, u16 handle)
391 ret = wait_event_interruptible(dln2->mod_rx_slots[handle].wq,
392 find_free_slot(dln2, handle, &slot));
399 static void free_rx_slot(struct dln2_dev *dln2, u16 handle, int slot)
406 rxs = &dln2->mod_rx_slots[handle];
422 struct device *dev = &dln2->interface->dev;
432 static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd,
440 struct device *dev = &dln2->interface->dev;
442 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle];
445 spin_lock(&dln2->disconnect_lock);
446 if (!dln2->disconnect)
447 dln2->active_transfers++;
450 spin_unlock(&dln2->disconnect_lock);
455 rx_slot = alloc_rx_slot(dln2, handle);
461 ret = dln2_send_wait(dln2, handle, cmd, rx_slot, obuf, obuf_len);
478 if (dln2->disconnect) {
508 free_rx_slot(dln2, handle, rx_slot);
510 spin_lock(&dln2->disconnect_lock);
511 dln2->active_transfers--;
512 spin_unlock(&dln2->disconnect_lock);
513 if (dln2->disconnect)
514 wake_up(&dln2->disconnect_wq);
524 struct dln2_dev *dln2;
527 dln2 = dev_get_drvdata(pdev->dev.parent);
531 return _dln2_transfer(dln2, handle, cmd, obuf, obuf_len, ibuf,
536 static int dln2_check_hw(struct dln2_dev *dln2)
542 ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_VER,
550 dev_err(&dln2->interface->dev, "Device ID 0x%x not supported\n",
558 static int dln2_print_serialno(struct dln2_dev *dln2)
563 struct device *dev = &dln2->interface->dev;
565 ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_SN, NULL, 0,
577 static int dln2_hw_init(struct dln2_dev *dln2)
581 ret = dln2_check_hw(dln2);
585 return dln2_print_serialno(dln2);
588 static void dln2_free_rx_urbs(struct dln2_dev *dln2)
593 usb_free_urb(dln2->rx_urb[i]);
594 kfree(dln2->rx_buf[i]);
598 static void dln2_stop_rx_urbs(struct dln2_dev *dln2)
603 usb_kill_urb(dln2->rx_urb[i]);
606 static void dln2_free(struct dln2_dev *dln2)
608 dln2_free_rx_urbs(dln2);
609 usb_put_dev(dln2->usb_dev);
610 kfree(dln2);
613 static int dln2_setup_rx_urbs(struct dln2_dev *dln2,
620 dln2->rx_buf[i] = kmalloc(rx_max_size, GFP_KERNEL);
621 if (!dln2->rx_buf[i])
624 dln2->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
625 if (!dln2->rx_urb[i])
628 usb_fill_bulk_urb(dln2->rx_urb[i], dln2->usb_dev,
629 usb_rcvbulkpipe(dln2->usb_dev, dln2->ep_in),
630 dln2->rx_buf[i], rx_max_size, dln2_rx, dln2);
636 static int dln2_start_rx_urbs(struct dln2_dev *dln2, gfp_t gfp)
638 struct device *dev = &dln2->interface->dev;
643 ret = usb_submit_urb(dln2->rx_urb[i], gfp);
700 .name = "dln2-gpio",
706 .name = "dln2-i2c",
712 .name = "dln2-spi",
718 .name = "dln2-adc",
725 static void dln2_stop(struct dln2_dev *dln2)
730 spin_lock(&dln2->disconnect_lock);
731 dln2->disconnect = true;
732 spin_unlock(&dln2->disconnect_lock);
736 struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[i];
753 wait_event(dln2->disconnect_wq, !dln2->active_transfers);
755 dln2_stop_rx_urbs(dln2);
760 struct dln2_dev *dln2 = usb_get_intfdata(interface);
762 dln2_stop(dln2);
766 dln2_free(dln2);
776 struct dln2_dev *dln2;
791 dln2 = kzalloc(sizeof(*dln2), GFP_KERNEL);
792 if (!dln2)
795 dln2->ep_out = epout->bEndpointAddress;
796 dln2->ep_in = epin->bEndpointAddress;
797 dln2->usb_dev = usb_get_dev(interface_to_usbdev(interface));
798 dln2->interface = interface;
799 usb_set_intfdata(interface, dln2);
800 init_waitqueue_head(&dln2->disconnect_wq);
803 init_waitqueue_head(&dln2->mod_rx_slots[i].wq);
804 spin_lock_init(&dln2->mod_rx_slots[i].lock);
806 init_completion(&dln2->mod_rx_slots[i].slots[j].done);
809 spin_lock_init(&dln2->event_cb_lock);
810 spin_lock_init(&dln2->disconnect_lock);
811 INIT_LIST_HEAD(&dln2->event_cb_list);
813 ret = dln2_setup_rx_urbs(dln2, hostif);
817 ret = dln2_start_rx_urbs(dln2, GFP_KERNEL);
821 ret = dln2_hw_init(dln2);
836 dln2_stop_rx_urbs(dln2);
839 dln2_free(dln2);
846 struct dln2_dev *dln2 = usb_get_intfdata(iface);
848 dln2_stop(dln2);
855 struct dln2_dev *dln2 = usb_get_intfdata(iface);
857 dln2->disconnect = false;
859 return dln2_start_rx_urbs(dln2, GFP_NOIO);
870 .name = "dln2",