/*
 * Apple Onboard Audio Alsa helpers
 *
 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
 *
 * GPL v2, can be found in COPYING.
 */
#include <linux/module.h>
#include "alsa.h"

static int index = -1;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "index for AOA sound card.");

static struct aoa_card *aoa_card;

int aoa_alsa_init(char *name, struct module *mod, struct device *dev)
{
	struct snd_card *alsa_card;
	int err;

	if (aoa_card)
		/* cannot be EEXIST due to usage in aoa_fabric_register */
		return -EBUSY;

	err = snd_card_new(dev, index, name, mod, sizeof(struct aoa_card),
			   &alsa_card);
	if (err < 0)
		return err;
	aoa_card = alsa_card->private_data;
	aoa_card->alsa_card = alsa_card;
	strlcpy(alsa_card->driver, "AppleOnbdAudio", sizeof(alsa_card->driver));
	strlcpy(alsa_card->shortname, name, sizeof(alsa_card->shortname));
	strlcpy(alsa_card->longname, name, sizeof(alsa_card->longname));
	strlcpy(alsa_card->mixername, name, sizeof(alsa_card->mixername));
	err = snd_card_register(aoa_card->alsa_card);
	if (err < 0) {
		printk(KERN_ERR "snd-aoa: couldn't register alsa card\n");
		snd_card_free(aoa_card->alsa_card);
		aoa_card = NULL;
		return err;
	}
	return 0;
}

struct snd_card *aoa_get_card(void)
{
	if (aoa_card)
		return aoa_card->alsa_card;
	return NULL;
}
EXPORT_SYMBOL_GPL(aoa_get_card);

void aoa_alsa_cleanup(void)
{
	if (aoa_card) {
		snd_card_free(aoa_card->alsa_card);
		aoa_card = NULL;
	}
}

int aoa_snd_device_new(enum snd_device_type type,
		       void * device_data, struct snd_device_ops * ops)
{
	struct snd_card *card = aoa_get_card();
	int err;

	if (!card) return -ENOMEM;

	err = snd_device_new(card, type, device_data, ops);
	if (err) {
		printk(KERN_ERR "snd-aoa: failed to create snd device (%d)\n", err);
		return err;
	}
	err = snd_device_register(card, device_data);
	if (err) {
		printk(KERN_ERR "snd-aoa: failed to register "
				"snd device (%d)\n", err);
		printk(KERN_ERR "snd-aoa: have you forgotten the "
				"dev_register callback?\n");
		snd_device_free(card, device_data);
	}
	return err;
}
EXPORT_SYMBOL_GPL(aoa_snd_device_new);

int aoa_snd_ctl_add(struct snd_kcontrol* control)
{
	int err;

	if (!aoa_card) return -ENODEV;

	err = snd_ctl_add(aoa_card->alsa_card, control);
	if (err)
		printk(KERN_ERR "snd-aoa: failed to add alsa control (%d)\n",
		       err);
	return err;
}
EXPORT_SYMBOL_GPL(aoa_snd_ctl_add);
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=0263d4ebd94b36280608e296cba39b924b6e832b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=0263d4ebd94b36280608e296cba39b924b6e832b'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/crypto?id=0263d4ebd94b36280608e296cba39b924b6e832b'>crypto</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>rng.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='0263d4ebd94b36280608e296cba39b924b6e832b'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 12:38:43 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 12:38:43 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>0263d4ebd94b36280608e296cba39b924b6e832b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0263d4ebd94b36280608e296cba39b924b6e832b'>6e21b4b3d8e8fb12cdfcfd185d46992487265a9b</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>include/crypto/rng.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/rng.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>19ca2c8fecb1592d623fe5e82d6796f8d446268d</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b&amp;id2=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/rng.h?id=7b9e1d89e1b6a3b99a8fdd949aa0f98dd5bf2f6b'>7b9e1d89e1b6a3b99a8fdd949aa0f98dd5bf2f6b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/crypto/rng.h?id=0263d4ebd94b36280608e296cba39b924b6e832b&amp;id2=7b9e1d89e1b6a3b99a8fdd949aa0f98dd5bf2f6b'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'platform-drivers-x86-v4.10-4' of git://git.infradead.org/linux-platform-drivers-x86</div><div class='commit-msg'>Pull x86 platform-driver fixes from Andy Shevchenko:
 "This is my first pull request since I become a co-maintainer of
  Platform Drivers x86 subsystem. It's a bit bigger than usual due to
  material collected for almost two weeks in a row.

  MAINTAINERS:
   - Add myself to X86 PLATFORM DRIVERS as a co-maintainer

  ideapad-laptop:
   - handle ACPI event 1

  intel_mid_powerbtn:
   - Set IRQ_ONESHOT

  surface3-wmi:
   - fix uninitialized symbol
   - Shut up unused-function warning

  mlx-platform:
   - free first dev on error"

* tag 'platform-drivers-x86-v4.10-4' of git://git.infradead.org/linux-platform-drivers-x86:
  MAINTAINERS: Add myself to X86 PLATFORM DRIVERS as a co-maintainer
  platform/x86: ideapad-laptop: handle ACPI event 1
  platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT
  platform/x86: surface3-wmi: fix uninitialized symbol
  platform/x86: surface3-wmi: Shut up unused-function warning
  platform/x86: mlx-platform: free first dev on error
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=0263d4ebd94b36280608e296cba39b924b6e832b'>Diffstat</a> (limited to 'include/crypto/rng.h')</div><table summary='diffstat' class='diffstat'>