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2024-10-16 50a212ec906f7524620675f0c57357691c26c81f 
 kernel/drivers/nfc/pn533/usb.c
....@@ -1,21 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Driver for NXP PN533 NFC Chip - USB transport layer
34  *
45  * Copyright (C) 2011 Instituto Nokia de Tecnologia
56  * Copyright (C) 2012-2013 Tieto Poland
6
- *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License as published by
9
- * the Free Software Foundation; either version 2 of the License, or
10
- * (at your option) any later version.
11
- *
12
- * This program is distributed in the hope that it will be useful,
13
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
- * GNU General Public License for more details.
16
- *
17
- * You should have received a copy of the GNU General Public License
18
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
197  */
208 
219 #include <linux/device.h>
....@@ -165,10 +153,17 @@
165153 	return usb_submit_urb(phy->ack_urb, flags);
166154 }
167155 
156
+struct pn533_out_arg {
157
+	struct pn533_usb_phy *phy;
158
+	struct completion done;
159
+};
160
+
168161 static int pn533_usb_send_frame(struct pn533 *dev,
169162 				struct sk_buff *out)
170163 {
171164 	struct pn533_usb_phy *phy = dev->phy;
165
+	struct pn533_out_arg arg;
166
+	void *cntx;
172167 	int rc;
173168 
174169 	if (phy->priv == NULL)
....@@ -180,9 +175,17 @@
180175 	print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
181176 			     out->data, out->len, false);
182177 
178
+	arg.phy = phy;
179
+	init_completion(&arg.done);
180
+	cntx = phy->out_urb->context;
181
+	phy->out_urb->context = &arg;
182
+
183183 	rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
184184 	if (rc)
185185 		return rc;
186
+
187
+	wait_for_completion(&arg.done);
188
+	phy->out_urb->context = cntx;
186189 
187190 	if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
188191 		/* request for response for sent packet directly */
....@@ -222,7 +225,7 @@
222225 	usb_kill_urb(phy->in_urb);
223226 }
224227 
225
-/* ACR122 specific structs and fucntions */
228
+/* ACR122 specific structs and functions */
226229 
227230 /* ACS ACR122 pn533 frame definitions */
228231 #define PN533_ACR122_TX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_tx_frame) \
....@@ -424,7 +427,31 @@
424427 	return arg.rc;
425428 }
426429 
427
-static void pn533_send_complete(struct urb *urb)
430
+static void pn533_out_complete(struct urb *urb)
431
+{
432
+	struct pn533_out_arg *arg = urb->context;
433
+	struct pn533_usb_phy *phy = arg->phy;
434
+
435
+	switch (urb->status) {
436
+	case 0:
437
+		break; /* success */
438
+	case -ECONNRESET:
439
+	case -ENOENT:
440
+		dev_dbg(&phy->udev->dev,
441
+			"The urb has been stopped (status %d)\n",
442
+			urb->status);
443
+		break;
444
+	case -ESHUTDOWN:
445
+	default:
446
+		nfc_err(&phy->udev->dev,
447
+			"Urb failure (status %d)\n",
448
+			urb->status);
449
+	}
450
+
451
+	complete(&arg->done);
452
+}
453
+
454
+static void pn533_ack_complete(struct urb *urb)
428455 {
429456 	struct pn533_usb_phy *phy = urb->context;
430457 
....@@ -512,10 +539,10 @@
512539 
513540 	usb_fill_bulk_urb(phy->out_urb, phy->udev,
514541 			  usb_sndbulkpipe(phy->udev, out_endpoint),
515
-			  NULL, 0, pn533_send_complete, phy);
542
+			  NULL, 0, pn533_out_complete, phy);
516543 	usb_fill_bulk_urb(phy->ack_urb, phy->udev,
517544 			  usb_sndbulkpipe(phy->udev, out_endpoint),
518
-			  NULL, 0, pn533_send_complete, phy);
545
+			  NULL, 0, pn533_ack_complete, phy);
519546 
520547 	switch (id->driver_info) {
521548 	case PN533_DEVICE_STD:
....@@ -546,9 +573,9 @@
546573 		goto error;
547574 	}
548575 
549
-	priv = pn533_register_device(id->driver_info, protocols, protocol_type,
576
+	priv = pn53x_common_init(id->driver_info, protocol_type,
550577 					phy, &usb_phy_ops, fops,
551
-					&phy->udev->dev, &interface->dev);
578
+					&phy->udev->dev);
552579 
553580 	if (IS_ERR(priv)) {
554581 		rc = PTR_ERR(priv);
....@@ -559,14 +586,17 @@
559586 
560587 	rc = pn533_finalize_setup(priv);
561588 	if (rc)
562
-		goto err_deregister;
589
+		goto err_clean;
563590 
564591 	usb_set_intfdata(interface, phy);
592
+	rc = pn53x_register_nfc(priv, protocols, &interface->dev);
593
+	if (rc)
594
+		goto err_clean;
565595 
566596 	return 0;
567597 
568
-err_deregister:
569
-	pn533_unregister_device(phy->priv);
598
+err_clean:
599
+	pn53x_common_clean(priv);
570600 error:
571601 	usb_kill_urb(phy->in_urb);
572602 	usb_kill_urb(phy->out_urb);
....@@ -589,7 +619,8 @@
589619 	if (!phy)
590620 		return;
591621 
592
-	pn533_unregister_device(phy->priv);
622
+	pn53x_unregister_nfc(phy->priv);
623
+	pn53x_common_clean(phy->priv);
593624 
594625 	usb_set_intfdata(interface, NULL);
595626