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/*
* Copyright (C) 2014 Michal Ratajsky <michal.ratajsky@gmail.com>
*
* 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 of the licence, or (at your option) any later version.
*
* This library 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, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <glib.h>
#include <glib-object.h>
#include <libmatemixer/matemixer.h>
#include <libmatemixer/matemixer-private.h>
#include "oss-common.h"
#include "oss-switch.h"
#include "oss-switch-option.h"
struct _OssSwitchPrivate
{
gint fd;
GList *options;
};
static void oss_switch_class_init (OssSwitchClass *klass);
static void oss_switch_init (OssSwitch *swtch);
static void oss_switch_dispose (GObject *object);
static void oss_switch_finalize (GObject *object);
G_DEFINE_TYPE (OssSwitch, oss_switch, MATE_MIXER_TYPE_SWITCH)
static gboolean oss_switch_set_active_option (MateMixerSwitch *mms,
MateMixerSwitchOption *mmso);
static const GList *oss_switch_list_options (MateMixerSwitch *mms);
static void
oss_switch_class_init (OssSwitchClass *klass)
{
GObjectClass *object_class;
MateMixerSwitchClass *switch_class;
object_class = G_OBJECT_CLASS (klass);
object_class->dispose = oss_switch_dispose;
object_class->finalize = oss_switch_finalize;
switch_class = MATE_MIXER_SWITCH_CLASS (klass);
switch_class->set_active_option = oss_switch_set_active_option;
switch_class->list_options = oss_switch_list_options;
g_type_class_add_private (G_OBJECT_CLASS (klass), sizeof (OssSwitchPrivate));
}
static void
oss_switch_init (OssSwitch *swtch)
{
swtch->priv = G_TYPE_INSTANCE_GET_PRIVATE (swtch,
OSS_TYPE_SWITCH,
OssSwitchPrivate);
}
static void
oss_switch_dispose (GObject *object)
{
OssSwitch *swtch;
swtch = OSS_SWITCH (object);
if (swtch->priv->options != NULL) {
g_list_free_full (swtch->priv->options, g_object_unref);
swtch->priv->options = NULL;
}
G_OBJECT_CLASS (oss_switch_parent_class)->dispose (object);
}
static void
oss_switch_finalize (GObject *object)
{
OssSwitch *swtch;
swtch = OSS_SWITCH (object);
if (swtch->priv->fd != -1)
close (swtch->priv->fd);
G_OBJECT_CLASS (oss_switch_parent_class)->finalize (object);
}
OssSwitch *
oss_switch_new (const gchar *name,
const gchar *label,
gint fd,
GList *options)
{
OssSwitch *swtch;
swtch = g_object_new (OSS_TYPE_SWITCH,
"name", name,
"label", label,
"flags", MATE_MIXER_SWITCH_ALLOWS_NO_ACTIVE_OPTION,
"role", MATE_MIXER_SWITCH_ROLE_PORT,
NULL);
/* Takes ownership of options */
swtch->priv->fd = dup (fd);
swtch->priv->options = options;
return swtch;
}
void
oss_switch_load (OssSwitch *swtch)
{
GList *list;
gint recsrc;
gint ret;
g_return_if_fail (OSS_IS_SWITCH (swtch));
if G_UNLIKELY (swtch->priv->fd == -1)
return;
ret = ioctl (swtch->priv->fd, MIXER_READ (SOUND_MIXER_RECSRC), &recsrc);
if (ret == -1)
return;
if (recsrc == 0) {
_mate_mixer_switch_set_active_option (MATE_MIXER_SWITCH (swtch), NULL);
return;
}
list = swtch->priv->options;
while (list != NULL) {
OssSwitchOption *option = OSS_SWITCH_OPTION (list->data);
gint devnum = oss_switch_option_get_devnum (option);
/* Mark the selected option when we find it */
if (recsrc & (1 << devnum)) {
_mate_mixer_switch_set_active_option (MATE_MIXER_SWITCH (swtch),
MATE_MIXER_SWITCH_OPTION (option));
return;
}
list = list->next;
}
g_warning ("Unknown active option of switch %s",
mate_mixer_switch_get_name (MATE_MIXER_SWITCH (swtch)));
}
void
oss_switch_close (OssSwitch *swtch)
{
g_return_if_fail (OSS_IS_SWITCH (swtch));
if (swtch->priv->fd == -1)
return;
close (swtch->priv->fd);
swtch->priv->fd = -1;
}
static gboolean
oss_switch_set_active_option (MateMixerSwitch *mms, MateMixerSwitchOption *mmso)
{
OssSwitch *swtch;
gint ret;
gint recsrc;
gint devnum;
g_return_val_if_fail (OSS_IS_SWITCH (mms), FALSE);
g_return_val_if_fail (OSS_IS_SWITCH_OPTION (mmso), FALSE);
swtch = OSS_SWITCH (mms);
if G_UNLIKELY (swtch->priv->fd == -1)
return FALSE;
devnum = oss_switch_option_get_devnum (OSS_SWITCH_OPTION (mmso));
recsrc = 1 << devnum;
ret = ioctl (swtch->priv->fd, MIXER_WRITE (SOUND_MIXER_RECSRC), &recsrc);
if (ret == -1)
return FALSE;
return TRUE;
}
static const GList *
oss_switch_list_options (MateMixerSwitch *mms)
{
g_return_val_if_fail (OSS_IS_SWITCH (mms), NULL);
return OSS_SWITCH (mms)->priv->options;
}
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