1 /* 2 * The NFC Controller Interface is the communication protocol between an 3 * NFC Controller (NFCC) and a Device Host (DH). 4 * 5 * Copyright (C) 2011 Texas Instruments, Inc. 6 * 7 * Written by Ilan Elias <ilane@ti.com> 8 * 9 * Acknowledgements: 10 * This file is based on lib.c, which was written 11 * by Maxim Krasnyansky. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License version 2 15 * as published by the Free Software Foundation 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25 * 26 */ 27 28 #include <linux/module.h> 29 #include <linux/kernel.h> 30 #include <linux/types.h> 31 #include <linux/errno.h> 32 33 #include <net/nfc/nci.h> 34 35 /* NCI status codes to Unix errno mapping */ 36 int nci_to_errno(__u8 code) 37 { 38 switch (code) { 39 case NCI_STATUS_OK: 40 return 0; 41 42 case NCI_STATUS_REJECTED: 43 return -EBUSY; 44 45 case NCI_STATUS_MESSAGE_CORRUPTED: 46 return -EBADMSG; 47 48 case NCI_STATUS_BUFFER_FULL: 49 return -ENOBUFS; 50 51 case NCI_STATUS_NOT_INITIALIZED: 52 return -EHOSTDOWN; 53 54 case NCI_STATUS_SYNTAX_ERROR: 55 case NCI_STATUS_SEMANTIC_ERROR: 56 case NCI_STATUS_INVALID_PARAM: 57 case NCI_STATUS_RF_PROTOCOL_ERROR: 58 case NCI_STATUS_NFCEE_PROTOCOL_ERROR: 59 return -EPROTO; 60 61 case NCI_STATUS_UNKNOWN_GID: 62 case NCI_STATUS_UNKNOWN_OID: 63 return -EBADRQC; 64 65 case NCI_STATUS_MESSAGE_SIZE_EXCEEDED: 66 return -EMSGSIZE; 67 68 case NCI_STATUS_DISCOVERY_ALREADY_STARTED: 69 return -EALREADY; 70 71 case NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED: 72 case NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED: 73 return -ECONNREFUSED; 74 75 case NCI_STATUS_RF_TRANSMISSION_ERROR: 76 case NCI_STATUS_NFCEE_TRANSMISSION_ERROR: 77 return -ECOMM; 78 79 case NCI_STATUS_RF_TIMEOUT_ERROR: 80 case NCI_STATUS_NFCEE_TIMEOUT_ERROR: 81 return -ETIMEDOUT; 82 83 case NCI_STATUS_RF_LINK_LOSS_ERROR: 84 return -ENOLINK; 85 86 case NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED: 87 return -EDQUOT; 88 89 case NCI_STATUS_FAILED: 90 default: 91 return -ENOSYS; 92 } 93 } 94 EXPORT_SYMBOL(nci_to_errno); 95