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(cldev);
27	if (!phy)
28		return -ENOMEM;
29
30	r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
31			    MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
32			    &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(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);