1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2013 Intel Corporation. All rights reserved.
4 *
5 * HCI based Driver for Inside Secure microread NFC Chip
6 */
7
8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10#include <linux/module.h>
11#include <linux/mod_devicetable.h>
12#include <linux/nfc.h>
13#include <net/nfc/llc.h>
14
15#include "../mei_phy.h"
16#include "microread.h"
17
18#define MICROREAD_DRIVER_NAME "microread"
19
20static int microread_mei_probe(struct mei_cl_device *cldev,
21 const struct mei_cl_device_id *id)
22{
23 struct nfc_mei_phy *phy;
24 int r;
25
26 phy = nfc_mei_phy_alloc(device: cldev);
27 if (!phy)
28 return -ENOMEM;
29
30 r = microread_probe(phy_id: phy, phy_ops: &mei_phy_ops, LLC_NOP_NAME,
31 MEI_NFC_HEADER_SIZE, phy_tailroom: 0, MEI_NFC_MAX_HCI_PAYLOAD,
32 hdev: &phy->hdev);
33 if (r < 0) {
34 nfc_mei_phy_free(phy);
35
36 return r;
37 }
38
39 return 0;
40}
41
42static void microread_mei_remove(struct mei_cl_device *cldev)
43{
44 struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
45
46 microread_remove(hdev: phy->hdev);
47
48 nfc_mei_phy_free(phy);
49}
50
51static struct mei_cl_device_id microread_mei_tbl[] = {
52 { MICROREAD_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY},
53
54 /* required last entry */
55 { }
56};
57MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
58
59static struct mei_cl_driver microread_driver = {
60 .id_table = microread_mei_tbl,
61 .name = MICROREAD_DRIVER_NAME,
62
63 .probe = microread_mei_probe,
64 .remove = microread_mei_remove,
65};
66
67module_mei_cl_driver(microread_driver);
68
69MODULE_LICENSE("GPL");
70MODULE_DESCRIPTION(DRIVER_DESC);
71

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