/*
 *  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, see <http://www.gnu.org/licenses/>.
 *
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>

#include <net/nfc/nci.h>
#include <net/nfc/nci_core.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_RF_FRAME_CORRUPTED:
		return -EBADMSG;

	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_FAILED:
	default:
		return -ENOSYS;
	}
}
EXPORT_SYMBOL(nci_to_errno);
bslang.c?id=54791b276b4000b307339f269d3bf7db877d536f'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/build/feature/test-libslang.c'>
<input type='hidden' name='id' value='54791b276b4000b307339f269d3bf7db877d536f'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=54791b276b4000b307339f269d3bf7db877d536f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?id=54791b276b4000b307339f269d3bf7db877d536f'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/build?id=54791b276b4000b307339f269d3bf7db877d536f'>build</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/build/feature?id=54791b276b4000b307339f269d3bf7db877d536f'>feature</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f'>test-libslang.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='54791b276b4000b307339f269d3bf7db877d536f'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 14:28:22 -0800</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 14:28:22 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f'>54791b276b4000b307339f269d3bf7db877d536f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=54791b276b4000b307339f269d3bf7db877d536f'>1c2616bd373ce5ea28aac2a53e32f5b5834901ce</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f'>tools/build/feature/test-libslang.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/build/feature/test-libslang.c?id=5d0e7705774dd412a465896d08d59a81a345c1e4'>5d0e7705774dd412a465896d08d59a81a345c1e4</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f&amp;id2=5d0e7705774dd412a465896d08d59a81a345c1e4'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/build/feature/test-libslang.c?id=047487241ff59374fded8c477f21453681f5995c'>047487241ff59374fded8c477f21453681f5995c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/build/feature/test-libslang.c?id=54791b276b4000b307339f269d3bf7db877d536f&amp;id2=047487241ff59374fded8c477f21453681f5995c'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'sparc64-non-resumable-user-error-recovery'</div><div class='commit-msg'>Liam R. Howlett says:

====================
sparc64: Recover from userspace non-resumable PIO &amp; MEM errors

A non-resumable error from userspace is able to cause a kernel panic or trap
loop due to the setup and handling of the queued traps once in the kernel.
This patch series addresses both of these issues.

The queues are fixed by simply zeroing the memory before use.

PIO errors from userspace will result in a SIGBUS being sent to the user
process.

The MEM errors form userspace will result in a SIGKILL and also cause the
offending pages to be claimed so they are no longer used in future tasks.
SIGKILL is used to ensure that the process does not try to coredump and result
in an attempt to read the memory again from within kernel space.  Although
there is a HV call to scrub the memory (mem_scrub), there is no easy way to
guarantee that the real memory address(es) are not used by other tasks.
Clearing the error with mem_scrub would zero the memory and cause the other
processes to proceed with bad data.

The handling of other non-resumable errors remain unchanged and will cause a
panic.
====================

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=54791b276b4000b307339f269d3bf7db877d536f'>Diffstat</a> (limited to 'tools/build/feature/test-libslang.c')</div><table summary='diffstat' class='diffstat'>