1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2013 Intel Corporation. All rights reserved.
4 *
5 * HCI based Driver for NXP pn544 NFC Chip
6 */
7
8#include <linux/module.h>
9#include <linux/mod_devicetable.h>
10#include <linux/nfc.h>
11#include <net/nfc/hci.h>
12#include <net/nfc/llc.h>
13
14#include "../mei_phy.h"
15#include "pn544.h"
16
17#define PN544_DRIVER_NAME "pn544"
18
19static int pn544_mei_probe(struct mei_cl_device *cldev,
20 const struct mei_cl_device_id *id)
21{
22 struct nfc_mei_phy *phy;
23 int r;
24
25 phy = nfc_mei_phy_alloc(device: cldev);
26 if (!phy)
27 return -ENOMEM;
28
29 r = pn544_hci_probe(phy_id: phy, phy_ops: &mei_phy_ops, LLC_NOP_NAME,
30 MEI_NFC_HEADER_SIZE, phy_tailroom: 0, MEI_NFC_MAX_HCI_PAYLOAD,
31 NULL, hdev: &phy->hdev);
32 if (r < 0) {
33 nfc_mei_phy_free(phy);
34
35 return r;
36 }
37
38 return 0;
39}
40
41static void pn544_mei_remove(struct mei_cl_device *cldev)
42{
43 struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
44
45 pn544_hci_remove(hdev: phy->hdev);
46
47 nfc_mei_phy_free(phy);
48}
49
50static struct mei_cl_device_id pn544_mei_tbl[] = {
51 { PN544_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY},
52
53 /* required last entry */
54 { }
55};
56MODULE_DEVICE_TABLE(mei, pn544_mei_tbl);
57
58static struct mei_cl_driver pn544_driver = {
59 .id_table = pn544_mei_tbl,
60 .name = PN544_DRIVER_NAME,
61
62 .probe = pn544_mei_probe,
63 .remove = pn544_mei_remove,
64};
65
66module_mei_cl_driver(pn544_driver);
67
68MODULE_LICENSE("GPL");
69MODULE_DESCRIPTION(DRIVER_DESC);
70

source code of linux/drivers/nfc/pn544/mei.c