/* *  Mixer Interface - HDA simple abstact module *  Copyright (c) 2005 by Jaroslav Kysela <perex@suse.cz> * * *   This library is free software; you can redistribute it and/or modify *   it under the terms of the GNU Lesser General Public License as *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. * *   You should have received a copy of the GNU Lesser 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 <stdio.h>#include <stdlib.h>#include <unistd.h>#include <string.h>#include <fcntl.h>#include <sys/ioctl.h>#include <math.h>#include "asoundlib.h"#include "mixer_abst.h"#include "sbase.h"static struct sm_elem_ops simple_hda_ops;struct melem_sids sids[] = {	{		.sid	= SID_FRONT,		.sname	= "Front",		.sindex	= 0,		.weight = 1,		.chanmap = { 3, 0 },		.sops = &simple_hda_ops,	}};#define SELECTORS (sizeof(selectors)/sizeof(selectors[0]))struct helem_selector selectors[] = {	{		.iface =	SND_CTL_ELEM_IFACE_MIXER,		.name =		"Front Playback Volume",		.index = 	0,		.sid =		SID_FRONT,		.purpose =	PURPOSE_VOLUME,		.caps = 	SM_CAP_PVOLUME,	},	{		.iface =	SND_CTL_ELEM_IFACE_MIXER,		.name =		"Front Playback Switch",		.index = 	0,		.sid =		SID_FRONT,		.purpose =	PURPOSE_SWITCH,		.caps = 	SM_CAP_PSWITCH,	}};int alsa_mixer_simple_event(snd_mixer_class_t *class, unsigned int mask,			    snd_hctl_elem_t *helem, snd_mixer_elem_t *melem){	struct bclass_private *priv = snd_mixer_sbasic_get_private(class);	return priv->ops.event(class, mask, helem, melem);}int alsa_mixer_simple_init(snd_mixer_class_t *class){	struct bclass_base_ops *ops;	int err;		err = mixer_simple_basic_dlopen(class, &ops);	if (err < 0)		return 0;	err = ops->selreg(class, selectors, SELECTORS);	if (err < 0)		return err;	err = ops->sidreg(class, sids, SELECTORS);	if (err < 0)		return err;	return 0;}