]>
Commit | Line | Data |
---|---|---|
e0af11fa SO |
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 | |
98b32dec | 16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
e0af11fa SO |
17 | */ |
18 | ||
17936b43 JP |
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
20 | ||
e0af11fa | 21 | #include <linux/module.h> |
4912e2fe | 22 | #include <linux/mod_devicetable.h> |
e0af11fa SO |
23 | #include <linux/nfc.h> |
24 | #include <net/nfc/hci.h> | |
25 | #include <net/nfc/llc.h> | |
26 | ||
4912e2fe | 27 | #include "../mei_phy.h" |
e0af11fa SO |
28 | #include "microread.h" |
29 | ||
30 | #define MICROREAD_DRIVER_NAME "microread" | |
31 | ||
89391382 | 32 | static int microread_mei_probe(struct mei_cl_device *cldev, |
9593b0b1 | 33 | const struct mei_cl_device_id *id) |
e0af11fa | 34 | { |
4912e2fe | 35 | struct nfc_mei_phy *phy; |
e0af11fa SO |
36 | int r; |
37 | ||
38 | pr_info("Probing NFC microread\n"); | |
39 | ||
89391382 | 40 | phy = nfc_mei_phy_alloc(cldev); |
e0af11fa SO |
41 | if (!phy) { |
42 | pr_err("Cannot allocate memory for microread mei phy.\n"); | |
43 | return -ENOMEM; | |
44 | } | |
45 | ||
e0af11fa SO |
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); | |
73f3adb9 SO |
49 | if (r < 0) { |
50 | nfc_mei_phy_free(phy); | |
e0af11fa | 51 | |
73f3adb9 SO |
52 | return r; |
53 | } | |
e0af11fa | 54 | |
73f3adb9 | 55 | return 0; |
e0af11fa SO |
56 | } |
57 | ||
89391382 | 58 | static int microread_mei_remove(struct mei_cl_device *cldev) |
e0af11fa | 59 | { |
d49dc5e7 | 60 | struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev); |
e0af11fa | 61 | |
e0af11fa SO |
62 | microread_remove(phy->hdev); |
63 | ||
4912e2fe | 64 | nfc_mei_phy_free(phy); |
e0af11fa SO |
65 | |
66 | return 0; | |
67 | } | |
68 | ||
9593b0b1 | 69 | static struct mei_cl_device_id microread_mei_tbl[] = { |
b26864ca | 70 | { MICROREAD_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY}, |
cd48d8ba SO |
71 | |
72 | /* required last entry */ | |
73 | { } | |
74 | }; | |
cd48d8ba SO |
75 | MODULE_DEVICE_TABLE(mei, microread_mei_tbl); |
76 | ||
9593b0b1 | 77 | static struct mei_cl_driver microread_driver = { |
cd48d8ba SO |
78 | .id_table = microread_mei_tbl, |
79 | .name = MICROREAD_DRIVER_NAME, | |
e0af11fa SO |
80 | |
81 | .probe = microread_mei_probe, | |
82 | .remove = microread_mei_remove, | |
83 | }; | |
84 | ||
85 | static int microread_mei_init(void) | |
86 | { | |
87 | int r; | |
88 | ||
89 | pr_debug(DRIVER_DESC ": %s\n", __func__); | |
90 | ||
d49dc5e7 | 91 | r = mei_cldev_driver_register(µread_driver); |
e0af11fa SO |
92 | if (r) { |
93 | pr_err(MICROREAD_DRIVER_NAME ": driver registration failed\n"); | |
94 | return r; | |
95 | } | |
96 | ||
97 | return 0; | |
98 | } | |
99 | ||
100 | static void microread_mei_exit(void) | |
101 | { | |
d49dc5e7 | 102 | mei_cldev_driver_unregister(µread_driver); |
e0af11fa SO |
103 | } |
104 | ||
105 | module_init(microread_mei_init); | |
106 | module_exit(microread_mei_exit); | |
107 | ||
108 | MODULE_LICENSE("GPL"); | |
109 | MODULE_DESCRIPTION(DRIVER_DESC); |