1 // SPDX-License-Identifier: GPL-2.0-only
43 /* If TA is present bit 0 is set */
45 /* If TB is present bit 1 is set */
56 		td = ST21NFCA_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);  in st21nfca_se_get_bwi()
61 			return info->se_info.atr[i] >> 4;  in st21nfca_se_get_bwi()
78 	if (skb->len <= ST21NFCA_ESE_MAX_LENGTH) {  in st21nfca_se_get_atr()
79 		memcpy(info->se_info.atr, skb->data, skb->len);  in st21nfca_se_get_atr()
80 		info->se_info.wt_timeout =  in st21nfca_se_get_atr()
100 		info->se_info.count_pipes = 0;  in st21nfca_hci_control_se()
101 		info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_UICC;  in st21nfca_hci_control_se()
108 		info->se_info.count_pipes = 0;  in st21nfca_hci_control_se()
109 		info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_EMBEDDED;  in st21nfca_hci_control_se()
112 		return -EINVAL;  in st21nfca_hci_control_se()
119 	reinit_completion(&info->se_info.req_completion);  in st21nfca_hci_control_se()
125 	mod_timer(&info->se_info.se_active_timer, jiffies +  in st21nfca_hci_control_se()
127 	info->se_info.se_active = true;  in st21nfca_hci_control_se()
130 	wait_for_completion_interruptible(&info->se_info.req_completion);  in st21nfca_hci_control_se()
138 	for (i = 0; i < sk_host_list->len &&  in st21nfca_hci_control_se()
139 		sk_host_list->data[i] != se_idx; i++)  in st21nfca_hci_control_se()
141 	host_id = sk_host_list->data[i];  in st21nfca_hci_control_se()
149 	return -1;  in st21nfca_hci_control_se()
157 	if (test_bit(ST21NFCA_FACTORY_MODE, &hdev->quirks))  in st21nfca_hci_discover_se()
160 	if (info->se_status->is_uicc_present) {  in st21nfca_hci_discover_se()
161 		nfc_add_se(hdev->ndev, NFC_HCI_UICC_HOST_ID, NFC_SE_UICC);  in st21nfca_hci_discover_se()
165 	if (info->se_status->is_ese_present) {  in st21nfca_hci_discover_se()
166 		nfc_add_se(hdev->ndev, ST21NFCA_ESE_HOST_ID, NFC_SE_EMBEDDED);  in st21nfca_hci_discover_se()
180 	 * info->se_status->is_uicc_enable is true should never happen.  in st21nfca_hci_enable_se()
181 	 * Same for eSE.  in st21nfca_hci_enable_se()
195 		nfc_remove_se(hdev->ndev, se_idx);  in st21nfca_hci_enable_se()
209 	 * info->se_status->is_uicc_enable is true should never happen  in st21nfca_hci_disable_se()
210 	 * Same for eSE.  in st21nfca_hci_disable_se()
230 		info->se_info.cb = cb;  in st21nfca_hci_se_io()
231 		info->se_info.cb_context = cb_context;  in st21nfca_hci_se_io()
232 		mod_timer(&info->se_info.bwi_timer, jiffies +  in st21nfca_hci_se_io()
233 			  msecs_to_jiffies(info->se_info.wt_timeout));  in st21nfca_hci_se_io()
234 		info->se_info.bwi_active = true;  in st21nfca_hci_se_io()
245 		return -ENODEV;  in st21nfca_hci_se_io()
267 	info->se_info.bwi_active = false;  in st21nfca_se_wt_work()
269 	if (!info->se_info.xch_error) {  in st21nfca_se_wt_work()
270 		info->se_info.xch_error = true;  in st21nfca_se_wt_work()
271 		nfc_hci_send_event(info->hdev, ST21NFCA_APDU_READER_GATE,  in st21nfca_se_wt_work()
274 		info->se_info.xch_error = false;  in st21nfca_se_wt_work()
275 		nfc_hci_send_event(info->hdev, ST21NFCA_DEVICE_MGNT_GATE,  in st21nfca_se_wt_work()
278 	info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);  in st21nfca_se_wt_work()
285 	schedule_work(&info->se_info.timeout_work);  in st21nfca_se_wt_timeout()
293 	info->se_info.se_active = false;  in st21nfca_se_activation_timeout()
295 	complete(&info->se_info.req_completion);  in st21nfca_se_activation_timeout()
307 	struct device *dev = &hdev->ndev->dev;  in st21nfca_connectivity_event_received()
316 		r = nfc_se_connectivity(hdev->ndev, host);  in st21nfca_connectivity_event_received()
330 		 * size in bytes: 1          1       5-16 1             1           0-255  in st21nfca_connectivity_event_received()
333 		 * example:       0x81       5-16    X    0x82 0-255    X  in st21nfca_connectivity_event_received()
335 		if (skb->len < 2 || skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)  in st21nfca_connectivity_event_received()
336 			return -EPROTO;  in st21nfca_connectivity_event_received()
338 		aid_len = skb->data[1];  in st21nfca_connectivity_event_received()
340 		if (skb->len < aid_len + 4 || aid_len > sizeof(transaction->aid))  in st21nfca_connectivity_event_received()
341 			return -EPROTO;  in st21nfca_connectivity_event_received()
343 		params_len = skb->data[aid_len + 3];  in st21nfca_connectivity_event_received()
348 		if ((skb->data[aid_len + 2] != NFC_EVT_TRANSACTION_PARAMS_TAG) ||  in st21nfca_connectivity_event_received()
349 		    (skb->len < aid_len + 4 + params_len))  in st21nfca_connectivity_event_received()
350 			return -EPROTO;  in st21nfca_connectivity_event_received()
354 			return -ENOMEM;  in st21nfca_connectivity_event_received()
356 		transaction->aid_len = aid_len;  in st21nfca_connectivity_event_received()
357 		transaction->params_len = params_len;  in st21nfca_connectivity_event_received()
359 		memcpy(transaction->aid, &skb->data[2], aid_len);  in st21nfca_connectivity_event_received()
360 		memcpy(transaction->params, &skb->data[aid_len + 4], params_len);  in st21nfca_connectivity_event_received()
362 		r = nfc_se_transaction(hdev->ndev, host, transaction);  in st21nfca_connectivity_event_received()
365 		nfc_err(&hdev->ndev->dev, "Unexpected event on connectivity gate\n");  in st21nfca_connectivity_event_received()
383 		del_timer_sync(&info->se_info.bwi_timer);  in st21nfca_apdu_reader_event_received()
384 		cancel_work_sync(&info->se_info.timeout_work);  in st21nfca_apdu_reader_event_received()
385 		info->se_info.bwi_active = false;  in st21nfca_apdu_reader_event_received()
391 		info->se_info.cb(info->se_info.cb_context,  in st21nfca_apdu_reader_event_received()
392 			skb->data, skb->len, 0);  in st21nfca_apdu_reader_event_received()
395 		mod_timer(&info->se_info.bwi_timer, jiffies +  in st21nfca_apdu_reader_event_received()
396 				msecs_to_jiffies(info->se_info.wt_timeout));  in st21nfca_apdu_reader_event_received()
399 		nfc_err(&hdev->ndev->dev, "Unexpected event on apdu reader gate\n");  in st21nfca_apdu_reader_event_received()
413 	init_completion(&info->se_info.req_completion);  in st21nfca_se_init()
414 	INIT_WORK(&info->se_info.timeout_work, st21nfca_se_wt_work);  in st21nfca_se_init()
416 	timer_setup(&info->se_info.bwi_timer, st21nfca_se_wt_timeout, 0);  in st21nfca_se_init()
417 	info->se_info.bwi_active = false;  in st21nfca_se_init()
419 	timer_setup(&info->se_info.se_active_timer,  in st21nfca_se_init()
421 	info->se_info.se_active = false;  in st21nfca_se_init()
423 	info->se_info.count_pipes = 0;  in st21nfca_se_init()
424 	info->se_info.expected_pipes = 0;  in st21nfca_se_init()
426 	info->se_info.xch_error = false;  in st21nfca_se_init()
428 	info->se_info.wt_timeout =  in st21nfca_se_init()
437 	if (info->se_info.bwi_active)  in st21nfca_se_deinit()
438 		del_timer_sync(&info->se_info.bwi_timer);  in st21nfca_se_deinit()
439 	if (info->se_info.se_active)  in st21nfca_se_deinit()
440 		del_timer_sync(&info->se_info.se_active_timer);  in st21nfca_se_deinit()
442 	cancel_work_sync(&info->se_info.timeout_work);  in st21nfca_se_deinit()
443 	info->se_info.bwi_active = false;  in st21nfca_se_deinit()
444 	info->se_info.se_active = false;  in st21nfca_se_deinit()