Global update

1 files changed, 203 insertions, 0 deletions

diff --git a/backends/oss/oss-switch.c b/backends/oss/oss-switch.c
new file mode 100644
index 0000000..b138051
--- /dev/null
+++ b/backends/oss/oss-switch.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2014 Michal Ratajsky <[email protected]>
+ *
+ * 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;
+}