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-rw-r--r--include/sound/mixer_oss.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/include/sound/mixer_oss.h b/include/sound/mixer_oss.h
new file mode 100644
index 000000000..9a212c0ce
--- /dev/null
+++ b/include/sound/mixer_oss.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __SOUND_MIXER_OSS_H
+#define __SOUND_MIXER_OSS_H
+
+/*
+ * OSS MIXER API
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
+
+#define SNDRV_OSS_MAX_MIXERS 32
+
+struct snd_mixer_oss_file;
+
+struct snd_mixer_oss_slot {
+ int number;
+ unsigned int stereo: 1;
+ int (*get_volume)(struct snd_mixer_oss_file *fmixer,
+ struct snd_mixer_oss_slot *chn,
+ int *left, int *right);
+ int (*put_volume)(struct snd_mixer_oss_file *fmixer,
+ struct snd_mixer_oss_slot *chn,
+ int left, int right);
+ int (*get_recsrc)(struct snd_mixer_oss_file *fmixer,
+ struct snd_mixer_oss_slot *chn,
+ int *active);
+ int (*put_recsrc)(struct snd_mixer_oss_file *fmixer,
+ struct snd_mixer_oss_slot *chn,
+ int active);
+ unsigned long private_value;
+ void *private_data;
+ void (*private_free)(struct snd_mixer_oss_slot *slot);
+ int volume[2];
+};
+
+struct snd_mixer_oss {
+ struct snd_card *card;
+ char id[16];
+ char name[32];
+ struct snd_mixer_oss_slot slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */
+ unsigned int mask_recsrc; /* exclusive recsrc mask */
+ int (*get_recsrc)(struct snd_mixer_oss_file *fmixer,
+ unsigned int *active_index);
+ int (*put_recsrc)(struct snd_mixer_oss_file *fmixer,
+ unsigned int active_index);
+ void *private_data_recsrc;
+ void (*private_free_recsrc)(struct snd_mixer_oss *mixer);
+ struct mutex reg_mutex;
+ struct snd_info_entry *proc_entry;
+ int oss_dev_alloc;
+ /* --- */
+ int oss_recsrc;
+};
+
+struct snd_mixer_oss_file {
+ struct snd_card *card;
+ struct snd_mixer_oss *mixer;
+};
+
+int snd_mixer_oss_ioctl_card(struct snd_card *card,
+ unsigned int cmd, unsigned long arg);
+
+#endif /* CONFIG_SND_MIXER_OSS */
+
+#endif /* __SOUND_MIXER_OSS_H */