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-rw-r--r--kernel/sound/pci/hda/hda_beep.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/kernel/sound/pci/hda/hda_beep.h b/kernel/sound/pci/hda/hda_beep.h
new file mode 100644
index 000000000..46524ff7e
--- /dev/null
+++ b/kernel/sound/pci/hda/hda_beep.h
@@ -0,0 +1,64 @@
+/*
+ * Digital Beep Input Interface for HD-audio codec
+ *
+ * Author: Matthew Ranostay <mranostay@embeddedalley.com>
+ * Copyright (c) 2008 Embedded Alley Solutions Inc
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __SOUND_HDA_BEEP_H
+#define __SOUND_HDA_BEEP_H
+
+#include "hda_codec.h"
+
+#define HDA_BEEP_MODE_OFF 0
+#define HDA_BEEP_MODE_ON 1
+
+/* beep information */
+struct hda_beep {
+ struct input_dev *dev;
+ struct hda_codec *codec;
+ char phys[32];
+ int tone;
+ hda_nid_t nid;
+ unsigned int registered:1;
+ unsigned int enabled:1;
+ unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
+ unsigned int playing:1;
+ struct work_struct beep_work; /* scheduled task for beep event */
+ struct mutex mutex;
+ void (*power_hook)(struct hda_beep *beep, bool on);
+};
+
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);
+int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
+void snd_hda_detach_beep_device(struct hda_codec *codec);
+int snd_hda_register_beep_device(struct hda_codec *codec);
+#else
+static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
+{
+ return 0;
+}
+static inline void snd_hda_detach_beep_device(struct hda_codec *codec)
+{
+}
+static inline int snd_hda_register_beep_device(struct hda_codec *codec)
+{
+ return 0;
+}
+#endif
+#endif