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NFC: basic NCI protocol implementation

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The NFC Controller Interface (NCI) is a standard
communication protocol between an NFC Controller (NFCC)
and a Device Host (DH), defined by the NFC Forum.

Signed-off-by: Ilan Elias <ilane@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ilan Elias
2011-09-18 11:19:35 +03:00
committed by John W. Linville
parent 55eb94f9e9
commit 6a2968aaf5
11 changed files with 2129 additions and 0 deletions
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94
net/nfc/nci/lib.c Normal file
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/*
* The NFC Controller Interface is the communication protocol between an
* NFC Controller (NFCC) and a Device Host (DH).
*
* Copyright (C) 2011 Texas Instruments, Inc.
*
* Written by Ilan Elias <ilane@ti.com>
*
* Acknowledgements:
* This file is based on lib.c, which was written
* by Maxim Krasnyansky.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <net/nfc/nci.h>
/* NCI status codes to Unix errno mapping */
int nci_to_errno(__u8 code)
{
switch (code) {
case NCI_STATUS_OK:
return 0;
case NCI_STATUS_REJECTED:
return -EBUSY;
case NCI_STATUS_MESSAGE_CORRUPTED:
return -EBADMSG;
case NCI_STATUS_BUFFER_FULL:
return -ENOBUFS;
case NCI_STATUS_NOT_INITIALIZED:
return -EHOSTDOWN;
case NCI_STATUS_SYNTAX_ERROR:
case NCI_STATUS_SEMANTIC_ERROR:
case NCI_STATUS_INVALID_PARAM:
case NCI_STATUS_RF_PROTOCOL_ERROR:
case NCI_STATUS_NFCEE_PROTOCOL_ERROR:
return -EPROTO;
case NCI_STATUS_UNKNOWN_GID:
case NCI_STATUS_UNKNOWN_OID:
return -EBADRQC;
case NCI_STATUS_MESSAGE_SIZE_EXCEEDED:
return -EMSGSIZE;
case NCI_STATUS_DISCOVERY_ALREADY_STARTED:
return -EALREADY;
case NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED:
case NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED:
return -ECONNREFUSED;
case NCI_STATUS_RF_TRANSMISSION_ERROR:
case NCI_STATUS_NFCEE_TRANSMISSION_ERROR:
return -ECOMM;
case NCI_STATUS_RF_TIMEOUT_ERROR:
case NCI_STATUS_NFCEE_TIMEOUT_ERROR:
return -ETIMEDOUT;
case NCI_STATUS_RF_LINK_LOSS_ERROR:
return -ENOLINK;
case NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED:
return -EDQUOT;
case NCI_STATUS_FAILED:
default:
return -ENOSYS;
}
}
EXPORT_SYMBOL(nci_to_errno);