/*
 *  Route Plug-In
 *  Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
 *
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as
 *   published by the Free Software Foundation; either version 2 of
 *   the License, or (at your option) any later version.
 *
 *   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 Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "pcm_plugin.h"

static void zero_areas(struct snd_pcm_plugin_channel *dvp, int ndsts,
		       snd_pcm_uframes_t frames, snd_pcm_format_t format)
{
	int dst = 0;
	for (; dst < ndsts; ++dst) {
		if (dvp->wanted)
			snd_pcm_area_silence(&dvp->area, 0, frames, format);
		dvp->enabled = 0;
		dvp++;
	}
}

static inline void copy_area(const struct snd_pcm_plugin_channel *src_channel,
			     struct snd_pcm_plugin_channel *dst_channel,
			     snd_pcm_uframes_t frames, snd_pcm_format_t format)
{
	dst_channel->enabled = 1;
	snd_pcm_area_copy(&src_channel->area, 0, &dst_channel->area, 0, frames, format);
}

static snd_pcm_sframes_t route_transfer(struct snd_pcm_plugin *plugin,
					const struct snd_pcm_plugin_channel *src_channels,
					struct snd_pcm_plugin_channel *dst_channels,
					snd_pcm_uframes_t frames)
{
	int nsrcs, ndsts, dst;
	struct snd_pcm_plugin_channel *dvp;
	snd_pcm_format_t format;

	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
		return -ENXIO;
	if (frames == 0)
		return 0;

	nsrcs = plugin->src_format.channels;
	ndsts = plugin->dst_format.channels;

	format = plugin->dst_format.format;
	dvp = dst_channels;
	if (nsrcs <= 1) {
		/* expand to all channels */
		for (dst = 0; dst < ndsts; ++dst) {
			copy_area(src_channels, dvp, frames, format);
			dvp++;
		}
		return frames;
	}

	for (dst = 0; dst < ndsts && dst < nsrcs; ++dst) {
		copy_area(src_channels, dvp, frames, format);
		dvp++;
		src_channels++;
	}
	if (dst < ndsts)
		zero_areas(dvp, ndsts - dst, frames, format);
	return frames;
}

int snd_pcm_plugin_build_route(struct snd_pcm_substream *plug,
			       struct snd_pcm_plugin_format *src_format,
			       struct snd_pcm_plugin_format *dst_format,
			       struct snd_pcm_plugin **r_plugin)
{
	struct snd_pcm_plugin *plugin;
	int err;

	if (snd_BUG_ON(!r_plugin))
		return -ENXIO;
	*r_plugin = NULL;
	if (snd_BUG_ON(src_format->rate != dst_format->rate))
		return -ENXIO;
	if (snd_BUG_ON(src_format->format != dst_format->format))
		return -ENXIO;

	err = snd_pcm_plugin_build(plug, "route conversion",
				   src_format, dst_format, 0, &plugin);
	if (err < 0)
		return err;

	plugin->transfer = route_transfer;
	*r_plugin = plugin;
	return 0;
}
nput type='hidden' name='id' value='b5b46c4740aed1538544f0fa849c5b76c7823469'/><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>Jiri Slaby &lt;jslaby@suse.cz&gt;</td><td class='right'>2017-01-18 14:29:21 +0100</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-01-19 08:39:44 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/timer.c?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>b5b46c4740aed1538544f0fa849c5b76c7823469</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/irda/timer.c?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>125e7aced4835bad6f6a0c0d02d012f333caf922</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/irda/timer.c?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>net/irda/timer.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/timer.c?id=fa19a769f82fb9a5ca000b83cacd13fcaeda51ac'>fa19a769f82fb9a5ca000b83cacd13fcaeda51ac</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/irda/timer.c?id=b5b46c4740aed1538544f0fa849c5b76c7823469&amp;id2=fa19a769f82fb9a5ca000b83cacd13fcaeda51ac'>diff</a>)</td></tr></table>
<div class='commit-subject'>objtool: Fix IRET's opcode</div><div class='commit-msg'>The IRET opcode is 0xcf according to the Intel manual and also to objdump of my
vmlinux:

    1ea8:       48 cf                   iretq

Fix the opcode in arch_decode_instruction().

The previous value (0xc5) seems to correspond to LDS.

Signed-off-by: Jiri Slaby &lt;jslaby@suse.cz&gt;
Acked-by: Josh Poimboeuf &lt;jpoimboe@redhat.com&gt;
Cc: Andy Lutomirski &lt;luto@kernel.org&gt;
Cc: Borislav Petkov &lt;bp@alien8.de&gt;
Cc: Brian Gerst &lt;brgerst@gmail.com&gt;
Cc: Denys Vlasenko &lt;dvlasenk@redhat.com&gt;
Cc: H. Peter Anvin &lt;hpa@zytor.com&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Link: http://lkml.kernel.org/r/20170118132921.19319-1-jslaby@suse.cz
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>Diffstat</a> (limited to 'net/irda/timer.c')</div><table summary='diffstat' class='diffstat'>