Lines Matching refs:dev
33 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name)
37 pr_debug("%s do firmware %s\n", dev_name(&dev->dev), firmware_name);
39 device_lock(&dev->dev);
41 if (dev->shutting_down) {
46 if (dev->dev_up) {
51 if (!dev->ops->fw_download) {
56 dev->fw_download_in_progress = true;
57 rc = dev->ops->fw_download(dev, firmware_name);
59 dev->fw_download_in_progress = false;
62 device_unlock(&dev->dev);
69 * @dev: The nfc device to which firmware was downloaded
73 int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
76 dev->fw_download_in_progress = false;
78 return nfc_genl_fw_download_done(dev, firmware_name, result);
85 * @dev: The nfc device to be turned on
89 int nfc_dev_up(struct nfc_dev *dev)
93 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
95 device_lock(&dev->dev);
97 if (dev->shutting_down) {
102 if (dev->rfkill && rfkill_blocked(dev->rfkill)) {
107 if (dev->fw_download_in_progress) {
112 if (dev->dev_up) {
117 if (dev->ops->dev_up)
118 rc = dev->ops->dev_up(dev);
121 dev->dev_up = true;
124 if (dev->ops->discover_se && dev->ops->discover_se(dev))
128 device_unlock(&dev->dev);
135 * @dev: The nfc device to be turned off
137 int nfc_dev_down(struct nfc_dev *dev)
141 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
143 device_lock(&dev->dev);
145 if (dev->shutting_down) {
150 if (!dev->dev_up) {
155 if (dev->polling || dev->active_target) {
160 if (dev->ops->dev_down)
161 dev->ops->dev_down(dev);
163 dev->dev_up = false;
166 device_unlock(&dev->dev);
172 struct nfc_dev *dev = data;
174 pr_debug("%s blocked %d", dev_name(&dev->dev), blocked);
179 nfc_dev_down(dev);
191 * @dev: The nfc device that must start polling
198 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols)
203 dev_name(&dev->dev), im_protocols, tm_protocols);
208 device_lock(&dev->dev);
210 if (dev->shutting_down) {
215 if (!dev->dev_up) {
220 if (dev->polling) {
225 rc = dev->ops->start_poll(dev, im_protocols, tm_protocols);
227 dev->polling = true;
228 dev->rf_mode = NFC_RF_NONE;
232 device_unlock(&dev->dev);
239 * @dev: The nfc device that must stop polling
241 int nfc_stop_poll(struct nfc_dev *dev)
245 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
247 device_lock(&dev->dev);
249 if (dev->shutting_down) {
254 if (!dev->polling) {
259 dev->ops->stop_poll(dev);
260 dev->polling = false;
261 dev->rf_mode = NFC_RF_NONE;
264 device_unlock(&dev->dev);
268 static struct nfc_target *nfc_find_target(struct nfc_dev *dev, u32 target_idx)
272 for (i = 0; i < dev->n_targets; i++) {
273 if (dev->targets[i].idx == target_idx)
274 return &dev->targets[i];
280 int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode)
287 pr_debug("dev_name=%s comm %d\n", dev_name(&dev->dev), comm_mode);
289 if (!dev->ops->dep_link_up)
292 device_lock(&dev->dev);
294 if (dev->shutting_down) {
299 if (dev->dep_link_up == true) {
304 gb = nfc_llcp_general_bytes(dev, &gb_len);
310 target = nfc_find_target(dev, target_index);
316 rc = dev->ops->dep_link_up(dev, target, comm_mode, gb, gb_len);
318 dev->active_target = target;
319 dev->rf_mode = NFC_RF_INITIATOR;
323 device_unlock(&dev->dev);
327 int nfc_dep_link_down(struct nfc_dev *dev)
331 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
333 if (!dev->ops->dep_link_down)
336 device_lock(&dev->dev);
338 if (dev->shutting_down) {
343 if (dev->dep_link_up == false) {
348 rc = dev->ops->dep_link_down(dev);
350 dev->dep_link_up = false;
351 dev->active_target = NULL;
352 dev->rf_mode = NFC_RF_NONE;
353 nfc_llcp_mac_is_down(dev);
354 nfc_genl_dep_link_down_event(dev);
358 device_unlock(&dev->dev);
363 int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
366 dev->dep_link_up = true;
368 if (!dev->active_target && rf_mode == NFC_RF_INITIATOR) {
371 target = nfc_find_target(dev, target_idx);
375 dev->active_target = target;
378 dev->polling = false;
379 dev->rf_mode = rf_mode;
381 nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode);
383 return nfc_genl_dep_link_up_event(dev, target_idx, comm_mode, rf_mode);
390 * @dev: The nfc device that found the target
394 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol)
400 dev_name(&dev->dev), target_idx, protocol);
402 device_lock(&dev->dev);
404 if (dev->shutting_down) {
409 if (dev->active_target) {
414 target = nfc_find_target(dev, target_idx);
420 rc = dev->ops->activate_target(dev, target, protocol);
422 dev->active_target = target;
423 dev->rf_mode = NFC_RF_INITIATOR;
425 if (dev->ops->check_presence && !dev->shutting_down)
426 mod_timer(&dev->check_pres_timer, jiffies +
431 device_unlock(&dev->dev);
438 * @dev: The nfc device that found the target
442 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode)
447 dev_name(&dev->dev), target_idx);
449 device_lock(&dev->dev);
451 if (dev->shutting_down) {
456 if (dev->active_target == NULL) {
461 if (dev->active_target->idx != target_idx) {
466 if (dev->ops->check_presence)
467 timer_delete_sync(&dev->check_pres_timer);
469 dev->ops->deactivate_target(dev, dev->active_target, mode);
470 dev->active_target = NULL;
473 device_unlock(&dev->dev);
480 * @dev: The nfc device that found the target
488 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
494 dev_name(&dev->dev), target_idx, skb->len);
496 device_lock(&dev->dev);
498 if (dev->shutting_down) {
504 if (dev->rf_mode == NFC_RF_INITIATOR && dev->active_target != NULL) {
505 if (dev->active_target->idx != target_idx) {
511 if (dev->ops->check_presence)
512 timer_delete_sync(&dev->check_pres_timer);
514 rc = dev->ops->im_transceive(dev, dev->active_target, skb, cb,
517 if (!rc && dev->ops->check_presence && !dev->shutting_down)
518 mod_timer(&dev->check_pres_timer, jiffies +
520 } else if (dev->rf_mode == NFC_RF_TARGET && dev->ops->tm_send != NULL) {
521 rc = dev->ops->tm_send(dev, skb);
530 device_unlock(&dev->dev);
534 struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx)
538 list_for_each_entry(se, &dev->secure_elements, list)
546 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
551 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
553 device_lock(&dev->dev);
555 if (dev->shutting_down) {
560 if (!dev->dev_up) {
565 if (dev->polling) {
570 if (!dev->ops->enable_se || !dev->ops->disable_se) {
575 se = nfc_find_se(dev, se_idx);
586 rc = dev->ops->enable_se(dev, se_idx);
591 device_unlock(&dev->dev);
595 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
600 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
602 device_lock(&dev->dev);
604 if (dev->shutting_down) {
609 if (!dev->dev_up) {
614 if (!dev->ops->enable_se || !dev->ops->disable_se) {
619 se = nfc_find_se(dev, se_idx);
630 rc = dev->ops->disable_se(dev, se_idx);
635 device_unlock(&dev->dev);
639 int nfc_set_remote_general_bytes(struct nfc_dev *dev, const u8 *gb, u8 gb_len)
641 pr_debug("dev_name=%s gb_len=%d\n", dev_name(&dev->dev), gb_len);
643 return nfc_llcp_set_remote_gb(dev, gb, gb_len);
647 u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len)
649 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
651 return nfc_llcp_general_bytes(dev, gb_len);
655 int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb)
658 if (dev->dep_link_up == false) {
663 return nfc_llcp_data_received(dev, skb);
667 int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
672 device_lock(&dev->dev);
674 dev->polling = false;
677 rc = nfc_set_remote_general_bytes(dev, gb, gb_len);
682 dev->rf_mode = NFC_RF_TARGET;
685 nfc_dep_link_is_up(dev, 0, comm_mode, NFC_RF_TARGET);
687 rc = nfc_genl_tm_activated(dev, protocol);
690 device_unlock(&dev->dev);
696 int nfc_tm_deactivated(struct nfc_dev *dev)
698 dev->dep_link_up = false;
699 dev->rf_mode = NFC_RF_NONE;
701 return nfc_genl_tm_deactivated(dev);
708 * @dev: device sending the response
714 struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
722 dev->tx_headroom + dev->tx_tailroom + NFC_HEADER_SIZE;
726 skb_reserve(skb, dev->tx_headroom + NFC_HEADER_SIZE);
755 * @dev: The nfc device that found the targets
768 int nfc_targets_found(struct nfc_dev *dev,
773 pr_debug("dev_name=%s n_targets=%d\n", dev_name(&dev->dev), n_targets);
776 targets[i].idx = dev->target_next_idx++;
778 device_lock(&dev->dev);
780 if (dev->polling == false) {
781 device_unlock(&dev->dev);
785 dev->polling = false;
787 dev->targets_generation++;
789 kfree(dev->targets);
790 dev->targets = NULL;
793 dev->targets = kmemdup(targets,
797 if (!dev->targets) {
798 dev->n_targets = 0;
799 device_unlock(&dev->dev);
804 dev->n_targets = n_targets;
805 device_unlock(&dev->dev);
807 nfc_genl_targets_found(dev);
816 * @dev: The nfc device that had the activated target in field
825 int nfc_target_lost(struct nfc_dev *dev, u32 target_idx)
830 pr_debug("dev_name %s n_target %d\n", dev_name(&dev->dev), target_idx);
832 device_lock(&dev->dev);
834 for (i = 0; i < dev->n_targets; i++) {
835 tg = &dev->targets[i];
840 if (i == dev->n_targets) {
841 device_unlock(&dev->dev);
845 dev->targets_generation++;
846 dev->n_targets--;
847 dev->active_target = NULL;
849 if (dev->n_targets) {
850 memcpy(&dev->targets[i], &dev->targets[i + 1],
851 (dev->n_targets - i) * sizeof(struct nfc_target));
853 kfree(dev->targets);
854 dev->targets = NULL;
857 device_unlock(&dev->dev);
859 nfc_genl_target_lost(dev, target_idx);
865 inline void nfc_driver_failure(struct nfc_dev *dev, int err)
867 nfc_targets_found(dev, NULL, 0);
871 int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
876 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
878 se = nfc_find_se(dev, se_idx);
891 list_add(&se->list, &dev->secure_elements);
893 rc = nfc_genl_se_added(dev, se_idx, type);
905 int nfc_remove_se(struct nfc_dev *dev, u32 se_idx)
910 pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
912 list_for_each_entry_safe(se, n, &dev->secure_elements, list)
914 rc = nfc_genl_se_removed(dev, se_idx);
928 int nfc_se_transaction(struct nfc_dev *dev, u8 se_idx,
935 device_lock(&dev->dev);
942 rc = nfc_genl_se_transaction(dev, se_idx, evt_transaction);
944 device_unlock(&dev->dev);
949 int nfc_se_connectivity(struct nfc_dev *dev, u8 se_idx)
955 device_lock(&dev->dev);
956 rc = nfc_genl_se_connectivity(dev, se_idx);
957 device_unlock(&dev->dev);
964 struct nfc_dev *dev = to_nfc_dev(d);
967 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
969 nfc_genl_data_exit(&dev->genl_data);
970 kfree(dev->targets);
972 list_for_each_entry_safe(se, n, &dev->secure_elements, list) {
973 nfc_genl_se_removed(dev, se->idx);
978 ida_free(&nfc_index_ida, dev->idx);
980 kfree(dev);
985 struct nfc_dev *dev = container_of(work, struct nfc_dev,
989 device_lock(&dev->dev);
991 if (dev->active_target && timer_pending(&dev->check_pres_timer) == 0) {
992 rc = dev->ops->check_presence(dev, dev->active_target);
996 u32 active_target_idx = dev->active_target->idx;
997 device_unlock(&dev->dev);
998 nfc_target_lost(dev, active_target_idx);
1002 if (!dev->shutting_down)
1003 mod_timer(&dev->check_pres_timer, jiffies +
1008 device_unlock(&dev->dev);
1013 struct nfc_dev *dev = timer_container_of(dev, t, check_pres_timer);
1015 schedule_work(&dev->check_pres_work);
1026 struct nfc_dev *dev = to_nfc_dev(d);
1029 return dev->idx == *idx;
1055 struct nfc_dev *dev;
1065 dev = kzalloc(sizeof(struct nfc_dev), GFP_KERNEL);
1066 if (!dev)
1072 dev->idx = rc;
1074 dev->dev.class = &nfc_class;
1075 dev_set_name(&dev->dev, "nfc%d", dev->idx);
1076 device_initialize(&dev->dev);
1078 dev->ops = ops;
1079 dev->supported_protocols = supported_protocols;
1080 dev->tx_headroom = tx_headroom;
1081 dev->tx_tailroom = tx_tailroom;
1082 INIT_LIST_HEAD(&dev->secure_elements);
1084 nfc_genl_data_init(&dev->genl_data);
1086 dev->rf_mode = NFC_RF_NONE;
1089 dev->targets_generation = 1;
1092 timer_setup(&dev->check_pres_timer, nfc_check_pres_timeout, 0);
1093 INIT_WORK(&dev->check_pres_work, nfc_check_pres_work);
1096 return dev;
1099 kfree(dev);
1108 * @dev: The nfc device to register
1110 int nfc_register_device(struct nfc_dev *dev)
1114 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
1118 rc = device_add(&dev->dev);
1124 rc = nfc_llcp_register_device(dev);
1128 device_lock(&dev->dev);
1129 dev->rfkill = rfkill_alloc(dev_name(&dev->dev), &dev->dev,
1130 RFKILL_TYPE_NFC, &nfc_rfkill_ops, dev);
1131 if (dev->rfkill) {
1132 if (rfkill_register(dev->rfkill) < 0) {
1133 rfkill_destroy(dev->rfkill);
1134 dev->rfkill = NULL;
1137 dev->shutting_down = false;
1138 device_unlock(&dev->dev);
1140 rc = nfc_genl_device_added(dev);
1143 dev_name(&dev->dev));
1152 * @dev: The nfc device to unregister
1154 void nfc_unregister_device(struct nfc_dev *dev)
1158 pr_debug("dev_name=%s\n", dev_name(&dev->dev));
1160 rc = nfc_genl_device_removed(dev);
1163 "was removed\n", dev_name(&dev->dev));
1165 device_lock(&dev->dev);
1166 if (dev->rfkill) {
1167 rfkill_unregister(dev->rfkill);
1168 rfkill_destroy(dev->rfkill);
1169 dev->rfkill = NULL;
1171 dev->shutting_down = true;
1172 device_unlock(&dev->dev);
1174 if (dev->ops->check_presence) {
1175 timer_delete_sync(&dev->check_pres_timer);
1176 cancel_work_sync(&dev->check_pres_work);
1179 nfc_llcp_unregister_device(dev);
1183 device_del(&dev->dev);