Lines Matching refs:dev
45 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name)
49 pr_debug("%s do firmware %s\n", dev_name(&dev->dev), firmware_name);
51 device_lock(&dev->dev);
53 if (!device_is_registered(&dev->dev)) {
58 if (dev->dev_up) {
63 if (!dev->ops->fw_download) {
68 dev->fw_download_in_progress = true;
69 rc = dev->ops->fw_download(dev, firmware_name);
71 dev->fw_download_in_progress = false;
74 device_unlock(&dev->dev);
81 * @dev: The nfc device to which firmware was downloaded
85 int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
88 dev->fw_download_in_progress = false;
90 return nfc_genl_fw_download_done(dev, firmware_name, result);
97 * @dev: The nfc device to be turned on
101 int nfc_dev_up(struct nfc_dev *dev)
105 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
107 device_lock(&dev->dev);
109 if (dev->rfkill && rfkill_blocked(dev->rfkill)) {
114 if (!device_is_registered(&dev->dev)) {
119 if (dev->fw_download_in_progress) {
124 if (dev->dev_up) {
129 if (dev->ops->dev_up)
130 rc = dev->ops->dev_up(dev);
133 dev->dev_up = true;
136 if (dev->ops->discover_se && dev->ops->discover_se(dev))
140 device_unlock(&dev->dev);
147 * @dev: The nfc device to be turned off
149 int nfc_dev_down(struct nfc_dev *dev)
153 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
155 device_lock(&dev->dev);
157 if (!device_is_registered(&dev->dev)) {
162 if (!dev->dev_up) {
167 if (dev->polling || dev->active_target) {
172 if (dev->ops->dev_down)
173 dev->ops->dev_down(dev);
175 dev->dev_up = false;
178 device_unlock(&dev->dev);
184 struct nfc_dev *dev = data;
186 pr_debug("%s blocked %d", dev_name(&dev->dev), blocked);
191 nfc_dev_down(dev);
203 * @dev: The nfc device that must start polling
209 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols)
214 dev_name(&dev->dev), im_protocols, tm_protocols);
219 device_lock(&dev->dev);
221 if (!device_is_registered(&dev->dev)) {
226 if (!dev->dev_up) {
231 if (dev->polling) {
236 rc = dev->ops->start_poll(dev, im_protocols, tm_protocols);
238 dev->polling = true;
239 dev->rf_mode = NFC_RF_NONE;
243 device_unlock(&dev->dev);
250 * @dev: The nfc device that must stop polling
252 int nfc_stop_poll(struct nfc_dev *dev)
256 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
258 device_lock(&dev->dev);
260 if (!device_is_registered(&dev->dev)) {
265 if (!dev->polling) {
270 dev->ops->stop_poll(dev);
271 dev->polling = false;
272 dev->rf_mode = NFC_RF_NONE;
275 device_unlock(&dev->dev);
279 static struct nfc_target *nfc_find_target(struct nfc_dev *dev, u32 target_idx)
283 for (i = 0; i < dev->n_targets; i++) {
284 if (dev->targets[i].idx == target_idx)
285 return &dev->targets[i];
291 int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode)
298 pr_debug("dev_name=%s comm %d\n", dev_name(&dev->dev), comm_mode);
300 if (!dev->ops->dep_link_up)
303 device_lock(&dev->dev);
305 if (!device_is_registered(&dev->dev)) {
310 if (dev->dep_link_up == true) {
315 gb = nfc_llcp_general_bytes(dev, &gb_len);
321 target = nfc_find_target(dev, target_index);
327 rc = dev->ops->dep_link_up(dev, target, comm_mode, gb, gb_len);
329 dev->active_target = target;
330 dev->rf_mode = NFC_RF_INITIATOR;
334 device_unlock(&dev->dev);
338 int nfc_dep_link_down(struct nfc_dev *dev)
342 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
344 if (!dev->ops->dep_link_down)
347 device_lock(&dev->dev);
349 if (!device_is_registered(&dev->dev)) {
354 if (dev->dep_link_up == false) {
359 rc = dev->ops->dep_link_down(dev);
361 dev->dep_link_up = false;
362 dev->active_target = NULL;
363 dev->rf_mode = NFC_RF_NONE;
364 nfc_llcp_mac_is_down(dev);
365 nfc_genl_dep_link_down_event(dev);
369 device_unlock(&dev->dev);
374 int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
377 dev->dep_link_up = true;
379 if (!dev->active_target && rf_mode == NFC_RF_INITIATOR) {
382 target = nfc_find_target(dev, target_idx);
386 dev->active_target = target;
389 dev->polling = false;
390 dev->rf_mode = rf_mode;
392 nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode);
394 return nfc_genl_dep_link_up_event(dev, target_idx, comm_mode, rf_mode);
401 * @dev: The nfc device that found the target
405 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol)
411 dev_name(&dev->dev), target_idx, protocol);
413 device_lock(&dev->dev);
415 if (!device_is_registered(&dev->dev)) {
420 if (dev->active_target) {
425 target = nfc_find_target(dev, target_idx);
431 rc = dev->ops->activate_target(dev, target, protocol);
433 dev->active_target = target;
434 dev->rf_mode = NFC_RF_INITIATOR;
436 if (dev->ops->check_presence && !dev->shutting_down)
437 mod_timer(&dev->check_pres_timer, jiffies +
442 device_unlock(&dev->dev);
449 * @dev: The nfc device that found the target
452 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx)
457 dev_name(&dev->dev), target_idx);
459 device_lock(&dev->dev);
461 if (!device_is_registered(&dev->dev)) {
466 if (dev->active_target == NULL) {
471 if (dev->active_target->idx != target_idx) {
476 if (dev->ops->check_presence)
477 del_timer_sync(&dev->check_pres_timer);
479 dev->ops->deactivate_target(dev, dev->active_target);
480 dev->active_target = NULL;
483 device_unlock(&dev->dev);
490 * @dev: The nfc device that found the target
498 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
504 dev_name(&dev->dev), target_idx, skb->len);
506 device_lock(&dev->dev);
508 if (!device_is_registered(&dev->dev)) {
514 if (dev->rf_mode == NFC_RF_INITIATOR && dev->active_target != NULL) {
515 if (dev->active_target->idx != target_idx) {
521 if (dev->ops->check_presence)
522 del_timer_sync(&dev->check_pres_timer);
524 rc = dev->ops->im_transceive(dev, dev->active_target, skb, cb,
527 if (!rc && dev->ops->check_presence && !dev->shutting_down)
528 mod_timer(&dev->check_pres_timer, jiffies +
530 } else if (dev->rf_mode == NFC_RF_TARGET && dev->ops->tm_send != NULL) {
531 rc = dev->ops->tm_send(dev, skb);
540 device_unlock(&dev->dev);
544 struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx)
548 list_for_each_entry(se, &dev->secure_elements, list)
556 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
562 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
564 device_lock(&dev->dev);
566 if (!device_is_registered(&dev->dev)) {
571 if (!dev->dev_up) {
576 if (dev->polling) {
581 if (!dev->ops->enable_se || !dev->ops->disable_se) {
586 se = nfc_find_se(dev, se_idx);
597 rc = dev->ops->enable_se(dev, se_idx);
602 device_unlock(&dev->dev);
606 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
612 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
614 device_lock(&dev->dev);
616 if (!device_is_registered(&dev->dev)) {
621 if (!dev->dev_up) {
626 if (!dev->ops->enable_se || !dev->ops->disable_se) {
631 se = nfc_find_se(dev, se_idx);
642 rc = dev->ops->disable_se(dev, se_idx);
647 device_unlock(&dev->dev);
651 int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
653 pr_debug("dev_name=%s gb_len=%d\n", dev_name(&dev->dev), gb_len);
655 return nfc_llcp_set_remote_gb(dev, gb, gb_len);
659 u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len)
661 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
663 return nfc_llcp_general_bytes(dev, gb_len);
667 int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb)
670 if (dev->dep_link_up == false) {
675 return nfc_llcp_data_received(dev, skb);
679 int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
684 device_lock(&dev->dev);
686 dev->polling = false;
689 rc = nfc_set_remote_general_bytes(dev, gb, gb_len);
694 dev->rf_mode = NFC_RF_TARGET;
697 nfc_dep_link_is_up(dev, 0, comm_mode, NFC_RF_TARGET);
699 rc = nfc_genl_tm_activated(dev, protocol);
702 device_unlock(&dev->dev);
708 int nfc_tm_deactivated(struct nfc_dev *dev)
710 dev->dep_link_up = false;
711 dev->rf_mode = NFC_RF_NONE;
713 return nfc_genl_tm_deactivated(dev);
723 struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
731 dev->tx_headroom + dev->tx_tailroom + NFC_HEADER_SIZE;
735 skb_reserve(skb, dev->tx_headroom + NFC_HEADER_SIZE);
764 * @dev: The nfc device that found the targets
777 int nfc_targets_found(struct nfc_dev *dev,
782 pr_debug("dev_name=%s n_targets=%d\n", dev_name(&dev->dev), n_targets);
785 targets[i].idx = dev->target_next_idx++;
787 device_lock(&dev->dev);
789 if (dev->polling == false) {
790 device_unlock(&dev->dev);
794 dev->polling = false;
796 dev->targets_generation++;
798 kfree(dev->targets);
799 dev->targets = NULL;
802 dev->targets = kmemdup(targets,
806 if (!dev->targets) {
807 dev->n_targets = 0;
808 device_unlock(&dev->dev);
813 dev->n_targets = n_targets;
814 device_unlock(&dev->dev);
816 nfc_genl_targets_found(dev);
825 * @dev: The nfc device that had the activated target in field
834 int nfc_target_lost(struct nfc_dev *dev, u32 target_idx)
839 pr_debug("dev_name %s n_target %d\n", dev_name(&dev->dev), target_idx);
841 device_lock(&dev->dev);
843 for (i = 0; i < dev->n_targets; i++) {
844 tg = &dev->targets[i];
849 if (i == dev->n_targets) {
850 device_unlock(&dev->dev);
854 dev->targets_generation++;
855 dev->n_targets--;
856 dev->active_target = NULL;
858 if (dev->n_targets) {
859 memcpy(&dev->targets[i], &dev->targets[i + 1],
860 (dev->n_targets - i) * sizeof(struct nfc_target));
862 kfree(dev->targets);
863 dev->targets = NULL;
866 device_unlock(&dev->dev);
868 nfc_genl_target_lost(dev, target_idx);
874 inline void nfc_driver_failure(struct nfc_dev *dev, int err)
876 nfc_targets_found(dev, NULL, 0);
880 int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
885 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
887 se = nfc_find_se(dev, se_idx);
900 list_add(&se->list, &dev->secure_elements);
902 rc = nfc_genl_se_added(dev, se_idx, type);
914 int nfc_remove_se(struct nfc_dev *dev, u32 se_idx)
919 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
921 list_for_each_entry_safe(se, n, &dev->secure_elements, list)
923 rc = nfc_genl_se_removed(dev, se_idx);
939 struct nfc_dev *dev = to_nfc_dev(d);
942 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
944 nfc_genl_data_exit(&dev->genl_data);
945 kfree(dev->targets);
947 list_for_each_entry_safe(se, n, &dev->secure_elements, list) {
948 nfc_genl_se_removed(dev, se->idx);
953 kfree(dev);
958 struct nfc_dev *dev = container_of(work, struct nfc_dev,
962 device_lock(&dev->dev);
964 if (dev->active_target && timer_pending(&dev->check_pres_timer) == 0) {
965 rc = dev->ops->check_presence(dev, dev->active_target);
969 u32 active_target_idx = dev->active_target->idx;
970 device_unlock(&dev->dev);
971 nfc_target_lost(dev, active_target_idx);
975 if (!dev->shutting_down)
976 mod_timer(&dev->check_pres_timer, jiffies +
981 device_unlock(&dev->dev);
986 struct nfc_dev *dev = (struct nfc_dev *)data;
988 schedule_work(&dev->check_pres_work);
999 struct nfc_dev *dev = to_nfc_dev(d);
1002 return dev->idx == *idx;
1026 struct nfc_dev *dev;
1035 dev = kzalloc(sizeof(struct nfc_dev), GFP_KERNEL);
1036 if (!dev)
1039 dev->ops = ops;
1040 dev->supported_protocols = supported_protocols;
1041 dev->tx_headroom = tx_headroom;
1042 dev->tx_tailroom = tx_tailroom;
1043 INIT_LIST_HEAD(&dev->secure_elements);
1045 nfc_genl_data_init(&dev->genl_data);
1047 dev->rf_mode = NFC_RF_NONE;
1050 dev->targets_generation = 1;
1053 init_timer(&dev->check_pres_timer);
1054 dev->check_pres_timer.data = (unsigned long)dev;
1055 dev->check_pres_timer.function = nfc_check_pres_timeout;
1057 INIT_WORK(&dev->check_pres_work, nfc_check_pres_work);
1060 return dev;
1067 * @dev: The nfc device to register
1069 int nfc_register_device(struct nfc_dev *dev)
1073 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
1075 dev->idx = ida_simple_get(&nfc_index_ida, 0, 0, GFP_KERNEL);
1076 if (dev->idx < 0)
1077 return dev->idx;
1079 dev->dev.class = &nfc_class;
1080 dev_set_name(&dev->dev, "nfc%d", dev->idx);
1081 device_initialize(&dev->dev);
1085 rc = device_add(&dev->dev);
1091 rc = nfc_llcp_register_device(dev);
1095 rc = nfc_genl_device_added(dev);
1098 dev_name(&dev->dev));
1100 dev->rfkill = rfkill_alloc(dev_name(&dev->dev), &dev->dev,
1101 RFKILL_TYPE_NFC, &nfc_rfkill_ops, dev);
1102 if (dev->rfkill) {
1103 if (rfkill_register(dev->rfkill) < 0) {
1104 rfkill_destroy(dev->rfkill);
1105 dev->rfkill = NULL;
1116 * @dev: The nfc device to unregister
1118 void nfc_unregister_device(struct nfc_dev *dev)
1122 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
1124 id = dev->idx;
1126 if (dev->rfkill) {
1127 rfkill_unregister(dev->rfkill);
1128 rfkill_destroy(dev->rfkill);
1131 if (dev->ops->check_presence) {
1132 device_lock(&dev->dev);
1133 dev->shutting_down = true;
1134 device_unlock(&dev->dev);
1135 del_timer_sync(&dev->check_pres_timer);
1136 cancel_work_sync(&dev->check_pres_work);
1139 rc = nfc_genl_device_removed(dev);
1142 "was removed\n", dev_name(&dev->dev));
1144 nfc_llcp_unregister_device(dev);
1148 device_del(&dev->dev);