From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sun, 9 Feb 2020 03:20:53 +0000 (+0900)
Subject: timer: user_instance: add an API to attach timer device to user instance
X-Git-Tag: v0.1.0~348
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=977ae89a0f1f450dd2f46fcbdd00cf5eeaa2ba94;p=alsa-gobject.git

timer: user_instance: add an API to attach timer device to user instance

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---

diff --git a/src/timer/alsatimer.map b/src/timer/alsatimer.map
index 63be1eb..b00c7d1 100644
--- a/src/timer/alsatimer.map
+++ b/src/timer/alsatimer.map
@@ -30,6 +30,8 @@ ALSA_GOBJECT_0_0_0 {
     "alsatimer_user_instance_get_type";
     "alsatimer_user_instance_new";
     "alsatimer_user_instance_open";
+    "alsatimer_user_instance_attach";
+    "alsatimer_user_instance_attach_as_slave";
   local:
     *;
 };
diff --git a/src/timer/user-instance.c b/src/timer/user-instance.c
index f9e0835..5d2143d 100644
--- a/src/timer/user-instance.c
+++ b/src/timer/user-instance.c
@@ -7,6 +7,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <sys/ioctl.h>
 #include <errno.h>
 
 struct _ALSATimerUserInstancePrivate {
@@ -71,3 +72,27 @@ ALSATimerUserInstance *alsatimer_user_instance_new()
 {
     return g_object_new(ALSATIMER_TYPE_USER_INSTANCE, NULL);
 }
+
+/**
+ * alsatimer_user_instance_attach:
+ * @self: A #ALSATimerUserInstance.
+ * @device_id: A #ALSATimerDeviceId to which the instance is attached.
+ * @error: A #GError.
+ *
+ * Attach the instance to the timer device.
+ */
+void alsatimer_user_instance_attach(ALSATimerUserInstance *self,
+                                    ALSATimerDeviceId *device_id,
+                                    GError **error)
+{
+    ALSATimerUserInstancePrivate *priv;
+    struct snd_timer_select sel = {0};
+
+    g_return_if_fail(ALSATIMER_IS_USER_INSTANCE(self));
+    g_return_if_fail(device_id != NULL);
+    priv = alsatimer_user_instance_get_instance_private(self);
+
+    sel.id = *device_id;
+    if (ioctl(priv->fd, SNDRV_TIMER_IOCTL_SELECT, &sel) < 0)
+        generate_error(error, errno);
+}
diff --git a/src/timer/user-instance.h b/src/timer/user-instance.h
index 768b8bf..0041350 100644
--- a/src/timer/user-instance.h
+++ b/src/timer/user-instance.h
@@ -5,6 +5,8 @@
 #include <glib.h>
 #include <glib-object.h>
 
+#include <timer/device-id.h>
+
 G_BEGIN_DECLS
 
 #define ALSATIMER_TYPE_USER_INSTANCE    (alsatimer_user_instance_get_type())
@@ -49,6 +51,10 @@ ALSATimerUserInstance *alsatimer_user_instance_new();
 
 void alsatimer_user_instance_open(ALSATimerUserInstance *self, GError **error);
 
+void alsatimer_user_instance_attach(ALSATimerUserInstance *self,
+                                    ALSATimerDeviceId *device_id,
+                                    GError **error);
+
 G_END_DECLS
 
 #endif
diff --git a/tests/alsatimer-user-instance b/tests/alsatimer-user-instance
index 33ad6b3..5e7c1a5 100644
--- a/tests/alsatimer-user-instance
+++ b/tests/alsatimer-user-instance
@@ -14,6 +14,7 @@ props = ()
 methods = (
     'new',
     'open',
+    'attach',
 )
 signals = ()