1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2013 Intel Corporation. All rights reserved.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * HCI based Driver for NXP pn544 NFC Chip
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/module.h>
9*4882a593Smuzhiyun #include <linux/mod_devicetable.h>
10*4882a593Smuzhiyun #include <linux/nfc.h>
11*4882a593Smuzhiyun #include <net/nfc/hci.h>
12*4882a593Smuzhiyun #include <net/nfc/llc.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include "../mei_phy.h"
15*4882a593Smuzhiyun #include "pn544.h"
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define PN544_DRIVER_NAME "pn544"
18*4882a593Smuzhiyun
pn544_mei_probe(struct mei_cl_device * cldev,const struct mei_cl_device_id * id)19*4882a593Smuzhiyun static int pn544_mei_probe(struct mei_cl_device *cldev,
20*4882a593Smuzhiyun const struct mei_cl_device_id *id)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun struct nfc_mei_phy *phy;
23*4882a593Smuzhiyun int r;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun pr_info("Probing NFC pn544\n");
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun phy = nfc_mei_phy_alloc(cldev);
28*4882a593Smuzhiyun if (!phy) {
29*4882a593Smuzhiyun pr_err("Cannot allocate memory for pn544 mei phy.\n");
30*4882a593Smuzhiyun return -ENOMEM;
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun r = pn544_hci_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
34*4882a593Smuzhiyun MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
35*4882a593Smuzhiyun NULL, &phy->hdev);
36*4882a593Smuzhiyun if (r < 0) {
37*4882a593Smuzhiyun nfc_mei_phy_free(phy);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun return r;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
pn544_mei_remove(struct mei_cl_device * cldev)45*4882a593Smuzhiyun static int pn544_mei_remove(struct mei_cl_device *cldev)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun pr_info("Removing pn544\n");
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun pn544_hci_remove(phy->hdev);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun nfc_mei_phy_free(phy);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun return 0;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun static struct mei_cl_device_id pn544_mei_tbl[] = {
59*4882a593Smuzhiyun { PN544_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY},
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun /* required last entry */
62*4882a593Smuzhiyun { }
63*4882a593Smuzhiyun };
64*4882a593Smuzhiyun MODULE_DEVICE_TABLE(mei, pn544_mei_tbl);
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun static struct mei_cl_driver pn544_driver = {
67*4882a593Smuzhiyun .id_table = pn544_mei_tbl,
68*4882a593Smuzhiyun .name = PN544_DRIVER_NAME,
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun .probe = pn544_mei_probe,
71*4882a593Smuzhiyun .remove = pn544_mei_remove,
72*4882a593Smuzhiyun };
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun module_mei_cl_driver(pn544_driver);
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun MODULE_LICENSE("GPL");
77*4882a593Smuzhiyun MODULE_DESCRIPTION(DRIVER_DESC);
78