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-rw-r--r--sound/pci/hda/hda_beep.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h
new file mode 100644
index 000000000..db76e3ddb
--- /dev/null
+++ b/sound/pci/hda/hda_beep.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Digital Beep Input Interface for HD-audio codec
+ *
+ * Author: Matt Ranostay <matt.ranostay@konsulko.com>
+ * Copyright (c) 2008 Embedded Alley Solutions Inc
+ */
+
+#ifndef __SOUND_HDA_BEEP_H
+#define __SOUND_HDA_BEEP_H
+
+#include <sound/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;
+ unsigned int keep_power_at_enable:1; /* set by driver */
+ 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);
+#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)
+{
+}
+#endif
+#endif