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);

 
  1/*
 
 
  2 * HCI based Driver for Inside Secure microread NFC Chip
  3 *
  4 * Copyright (C) 2013  Intel Corporation. All rights reserved.
  5 *
  6 * This program is free software; you can redistribute it and/or modify it
  7 * under the terms and conditions of the GNU General Public License,
  8 * version 2, as published by the Free Software Foundation.
  9 *
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 13 * GNU General Public License for more details.
 14 *
 15 * You should have received a copy of the GNU General Public License
 16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 17 */
 18
 19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 20
 21#include <linux/module.h>
 22#include <linux/mod_devicetable.h>
 23#include <linux/nfc.h>
 24#include <net/nfc/hci.h>
 25#include <net/nfc/llc.h>
 26
 27#include "../mei_phy.h"
 28#include "microread.h"
 29
 30#define MICROREAD_DRIVER_NAME "microread"
 31
 32static int microread_mei_probe(struct mei_cl_device *device,
 33			       const struct mei_cl_device_id *id)
 34{
 35	struct nfc_mei_phy *phy;
 36	int r;
 37
 38	pr_info("Probing NFC microread\n");
 39
 40	phy = nfc_mei_phy_alloc(device);
 41	if (!phy) {
 42		pr_err("Cannot allocate memory for microread mei phy.\n");
 43		return -ENOMEM;
 44	}
 45
 46	r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
 47			    MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
 48			    &phy->hdev);
 49	if (r < 0) {
 50		nfc_mei_phy_free(phy);
 51
 52		return r;
 53	}
 54
 55	return 0;
 56}
 57
 58static int microread_mei_remove(struct mei_cl_device *device)
 59{
 60	struct nfc_mei_phy *phy = mei_cl_get_drvdata(device);
 61
 62	microread_remove(phy->hdev);
 63
 64	nfc_mei_phy_free(phy);
 65
 66	return 0;
 67}
 68
 69static struct mei_cl_device_id microread_mei_tbl[] = {
 70	{ MICROREAD_DRIVER_NAME },
 71
 72	/* required last entry */
 73	{ }
 74};
 75MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
 76
 77static struct mei_cl_driver microread_driver = {
 78	.id_table = microread_mei_tbl,
 79	.name = MICROREAD_DRIVER_NAME,
 80
 81	.probe = microread_mei_probe,
 82	.remove = microread_mei_remove,
 83};
 84
 85static int microread_mei_init(void)
 86{
 87	int r;
 88
 89	pr_debug(DRIVER_DESC ": %s\n", __func__);
 90
 91	r = mei_cl_driver_register(&microread_driver);
 92	if (r) {
 93		pr_err(MICROREAD_DRIVER_NAME ": driver registration failed\n");
 94		return r;
 95	}
 96
 97	return 0;
 98}
 99
100static void microread_mei_exit(void)
101{
102	mei_cl_driver_unregister(&microread_driver);
103}
104
105module_init(microread_mei_init);
106module_exit(microread_mei_exit);
107
108MODULE_LICENSE("GPL");
109MODULE_DESCRIPTION(DRIVER_DESC);