Merge tag 'm68k-for-v5.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert...
[linux-2.6-microblaze.git] / net / nfc / nci / lib.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  The NFC Controller Interface is the communication protocol between an
4  *  NFC Controller (NFCC) and a Device Host (DH).
5  *
6  *  Copyright (C) 2011 Texas Instruments, Inc.
7  *
8  *  Written by Ilan Elias <ilane@ti.com>
9  *
10  *  Acknowledgements:
11  *  This file is based on lib.c, which was written
12  *  by Maxim Krasnyansky.
13  */
14
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/types.h>
18 #include <linux/errno.h>
19
20 #include <net/nfc/nci.h>
21 #include <net/nfc/nci_core.h>
22
23 /* NCI status codes to Unix errno mapping */
24 int nci_to_errno(__u8 code)
25 {
26         switch (code) {
27         case NCI_STATUS_OK:
28                 return 0;
29
30         case NCI_STATUS_REJECTED:
31                 return -EBUSY;
32
33         case NCI_STATUS_RF_FRAME_CORRUPTED:
34                 return -EBADMSG;
35
36         case NCI_STATUS_NOT_INITIALIZED:
37                 return -EHOSTDOWN;
38
39         case NCI_STATUS_SYNTAX_ERROR:
40         case NCI_STATUS_SEMANTIC_ERROR:
41         case NCI_STATUS_INVALID_PARAM:
42         case NCI_STATUS_RF_PROTOCOL_ERROR:
43         case NCI_STATUS_NFCEE_PROTOCOL_ERROR:
44                 return -EPROTO;
45
46         case NCI_STATUS_UNKNOWN_GID:
47         case NCI_STATUS_UNKNOWN_OID:
48                 return -EBADRQC;
49
50         case NCI_STATUS_MESSAGE_SIZE_EXCEEDED:
51                 return -EMSGSIZE;
52
53         case NCI_STATUS_DISCOVERY_ALREADY_STARTED:
54                 return -EALREADY;
55
56         case NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED:
57         case NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED:
58                 return -ECONNREFUSED;
59
60         case NCI_STATUS_RF_TRANSMISSION_ERROR:
61         case NCI_STATUS_NFCEE_TRANSMISSION_ERROR:
62                 return -ECOMM;
63
64         case NCI_STATUS_RF_TIMEOUT_ERROR:
65         case NCI_STATUS_NFCEE_TIMEOUT_ERROR:
66                 return -ETIMEDOUT;
67
68         case NCI_STATUS_FAILED:
69         default:
70                 return -ENOSYS;
71         }
72 }
73 EXPORT_SYMBOL(nci_to_errno);