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-rw-r--r--sound/pci/ctxfi/ctmixer.h67
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diff --git a/sound/pci/ctxfi/ctmixer.h b/sound/pci/ctxfi/ctmixer.h
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+++ b/sound/pci/ctxfi/ctmixer.h
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+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File ctmixer.h
+ *
+ * @Brief
+ * This file contains the definition of the mixer device functions.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ *
+ */
+
+#ifndef CTMIXER_H
+#define CTMIXER_H
+
+#include "ctatc.h"
+#include "ctresource.h"
+
+#define INIT_VOL 0x1c00
+
+enum MIXER_PORT_T {
+ MIX_WAVE_FRONT,
+ MIX_WAVE_REAR,
+ MIX_WAVE_CENTLFE,
+ MIX_WAVE_SURROUND,
+ MIX_SPDIF_OUT,
+ MIX_PCMO_FRONT,
+ MIX_MIC_IN,
+ MIX_LINE_IN,
+ MIX_SPDIF_IN,
+ MIX_PCMI_FRONT,
+ MIX_PCMI_REAR,
+ MIX_PCMI_CENTLFE,
+ MIX_PCMI_SURROUND,
+
+ NUM_MIX_PORTS
+};
+
+/* alsa mixer descriptor */
+struct ct_mixer {
+ struct ct_atc *atc;
+
+ void **amixers; /* amixer resources for volume control */
+ void **sums; /* sum resources for signal collection */
+ unsigned int switch_state; /* A bit-map to indicate state of switches */
+
+ int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
+ struct rsc **rleft, struct rsc **rright);
+
+ int (*set_input_left)(struct ct_mixer *mixer,
+ enum MIXER_PORT_T type, struct rsc *rsc);
+ int (*set_input_right)(struct ct_mixer *mixer,
+ enum MIXER_PORT_T type, struct rsc *rsc);
+};
+
+int ct_alsa_mix_create(struct ct_atc *atc,
+ enum CTALSADEVS device,
+ const char *device_name);
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
+int ct_mixer_destroy(struct ct_mixer *mixer);
+
+#endif /* CTMIXER_H */