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/nfc.h>
12 #include <net/nfc/llc.h>
13
14 #include "../mei_phy.h"
15 #include "microread.h"
16
17 #define MICROREAD_DRIVER_NAME "microread"
18
microread_mei_probe(struct mei_cl_device * cldev,const struct mei_cl_device_id * id)19 static int microread_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(cldev);
26 if (!phy)
27 return -ENOMEM;
28
29 r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
30 MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
31 &phy->hdev);
32 if (r < 0) {
33 nfc_mei_phy_free(phy);
34
35 return r;
36 }
37
38 return 0;
39 }
40
microread_mei_remove(struct mei_cl_device * cldev)41 static void microread_mei_remove(struct mei_cl_device *cldev)
42 {
43 struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
44
45 microread_remove(phy->hdev);
46
47 nfc_mei_phy_free(phy);
48 }
49
50 static struct mei_cl_device_id microread_mei_tbl[] = {
51 {
52 .name = MICROREAD_DRIVER_NAME,
53 .uuid = MEI_NFC_UUID,
54 .version = MEI_CL_VERSION_ANY,
55 },
56 { /* required last entry */ }
57 };
58 MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
59
60 static struct mei_cl_driver microread_driver = {
61 .id_table = microread_mei_tbl,
62 .name = MICROREAD_DRIVER_NAME,
63
64 .probe = microread_mei_probe,
65 .remove = microread_mei_remove,
66 };
67
68 module_mei_cl_driver(microread_driver);
69
70 MODULE_LICENSE("GPL");
71 MODULE_DESCRIPTION(DRIVER_DESC);
72