#ifndef __SOUND_SEQ_OSS_H
#define __SOUND_SEQ_OSS_H

/*
 * OSS compatible sequencer driver
 *
 * Copyright (C) 1998,99 Takashi Iwai
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU 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 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 <sound/asequencer.h>
#include <sound/seq_kernel.h>

/*
 * argument structure for synthesizer operations
 */
struct snd_seq_oss_arg {
	/* given by OSS sequencer */
	int app_index;	/* application unique index */
	int file_mode;	/* file mode - see below */
	int seq_mode;	/* sequencer mode - see below */

	/* following must be initialized in open callback */
	struct snd_seq_addr addr;	/* opened port address */
	void *private_data;	/* private data for lowlevel drivers */

	/* note-on event passing mode: initially given by OSS seq,
	 * but configurable by drivers - see below
	 */
	int event_passing;
};


/*
 * synthesizer operation callbacks
 */
struct snd_seq_oss_callback {
	struct module *owner;
	int (*open)(struct snd_seq_oss_arg *p, void *closure);
	int (*close)(struct snd_seq_oss_arg *p);
	int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg);
	int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count);
	int (*reset)(struct snd_seq_oss_arg *p);
	int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);
};

/* flag: file_mode */
#define SNDRV_SEQ_OSS_FILE_ACMODE		3
#define SNDRV_SEQ_OSS_FILE_READ		1
#define SNDRV_SEQ_OSS_FILE_WRITE		2
#define SNDRV_SEQ_OSS_FILE_NONBLOCK	4

/* flag: seq_mode */
#define SNDRV_SEQ_OSS_MODE_SYNTH		0
#define SNDRV_SEQ_OSS_MODE_MUSIC		1

/* flag: event_passing */
#define SNDRV_SEQ_OSS_PROCESS_EVENTS	0	/* key == 255 is processed as velocity change */
#define SNDRV_SEQ_OSS_PASS_EVENTS		1	/* pass all events to callback */
#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS	2	/* key >= 128 will be processed as key-pressure */

/* default control rate: fixed */
#define SNDRV_SEQ_OSS_CTRLRATE		100

/* default max queue length: configurable by module option */
#define SNDRV_SEQ_OSS_MAX_QLEN		1024


/*
 * data pointer to snd_seq_register_device
 */
struct snd_seq_oss_reg {
	int type;
	int subtype;
	int nvoices;
	struct snd_seq_oss_callback oper;
	void *private_data;
};

/* device id */
#define SNDRV_SEQ_DEV_ID_OSS		"seq-oss"

#endif /* __SOUND_SEQ_OSS_H */
git.cgi/linux/net-next.git/commit/net/irda/irnet?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>irnet</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='08d85f3ea99f1eeafc4e8507936190e86a16ee8c'/><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>Marc Zyngier &lt;marc.zyngier@arm.com&gt;</td><td class='right'>2017-01-17 16:00:48 +0000</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-30 15:18:56 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/irnet?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>08d85f3ea99f1eeafc4e8507936190e86a16ee8c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/irda/irnet?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/irda/irnet?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>net/irda/irnet</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/irda/irnet?id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/irda/irnet?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr></table>
<div class='commit-subject'>irqdomain: Avoid activating interrupts more than once</div><div class='commit-msg'>Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are
activated early"), we can end-up activating a PCI/MSI twice (once
at allocation time, and once at startup time).

This is normally of no consequences, except that there is some
HW out there that may misbehave if activate is used more than once
(the GICv3 ITS, for example, uses the activate callback
to issue the MAPVI command, and the architecture spec says that
"If there is an existing mapping for the EventID-DeviceID
combination, behavior is UNPREDICTABLE").

While this could be worked around in each individual driver, it may
make more sense to tackle the issue at the core level. In order to
avoid getting in that situation, let's have a per-interrupt flag
to remember if we have already activated that interrupt or not.

Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early")
Reported-and-tested-by: Andre Przywara &lt;andre.przywara@arm.com&gt;
Signed-off-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>Diffstat</a> (limited to 'net/irda/irnet')</div><table summary='diffstat' class='diffstat'>