Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / pci / ctxfi / ctamixer.h

diff --git a/kernel/sound/pci/ctxfi/ctamixer.h b/kernel/sound/pci/ctxfi/ctamixer.h
new file mode 100644 (file)
index 0000000..72f42f2
--- /dev/null
+++ b/kernel/sound/pci/ctxfi/ctamixer.h
@@ -0,0 +1,99 @@
+/**
+ * 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       ctamixer.h
+ *
+ * @Brief
+ * This file contains the definition of the Audio Mixer
+ * resource management object.
+ *
+ * @Author     Liu Chun
+ * @Date       May 21 2008
+ *
+ */
+
+#ifndef CTAMIXER_H
+#define CTAMIXER_H
+
+#include "ctresource.h"
+#include <linux/spinlock.h>
+#include <sound/core.h>
+
+/* Define the descriptor of a summation node resource */
+struct sum {
+       struct rsc rsc;         /* Basic resource info */
+       unsigned char idx[8];
+};
+
+/* Define sum resource request description info */
+struct sum_desc {
+       unsigned int msr;
+};
+
+struct sum_mgr {
+       struct rsc_mgr mgr;     /* Basic resource manager info */
+       struct snd_card *card;  /* pointer to this card */
+       spinlock_t mgr_lock;
+
+        /* request one sum resource */
+       int (*get_sum)(struct sum_mgr *mgr,
+                       const struct sum_desc *desc, struct sum **rsum);
+       /* return one sum resource */
+       int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
+};
+
+/* Constructor and destructor of daio resource manager */
+int sum_mgr_create(struct hw *hw, struct sum_mgr **rsum_mgr);
+int sum_mgr_destroy(struct sum_mgr *sum_mgr);
+
+/* Define the descriptor of a amixer resource */
+struct amixer_rsc_ops;
+
+struct amixer {
+       struct rsc rsc;         /* Basic resource info */
+       unsigned char idx[8];
+       struct rsc *input;      /* pointer to a resource acting as source */
+       struct sum *sum;        /* Put amixer output to this summation node */
+       struct amixer_rsc_ops *ops;     /* AMixer specific operations */
+};
+
+struct amixer_rsc_ops {
+       int (*set_input)(struct amixer *amixer, struct rsc *rsc);
+       int (*set_scale)(struct amixer *amixer, unsigned int scale);
+       int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
+       int (*set_sum)(struct amixer *amixer, struct sum *sum);
+       int (*commit_write)(struct amixer *amixer);
+       /* Only for interleaved recording */
+       int (*commit_raw_write)(struct amixer *amixer);
+       int (*setup)(struct amixer *amixer, struct rsc *input,
+                       unsigned int scale, struct sum *sum);
+       int (*get_scale)(struct amixer *amixer);
+};
+
+/* Define amixer resource request description info */
+struct amixer_desc {
+       unsigned int msr;
+};
+
+struct amixer_mgr {
+       struct rsc_mgr mgr;     /* Basic resource manager info */
+       struct snd_card *card;  /* pointer to this card */
+       spinlock_t mgr_lock;
+
+        /* request one amixer resource */
+       int (*get_amixer)(struct amixer_mgr *mgr,
+                         const struct amixer_desc *desc,
+                         struct amixer **ramixer);
+       /* return one amixer resource */
+       int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
+};
+
+/* Constructor and destructor of amixer resource manager */
+int amixer_mgr_create(struct hw *hw, struct amixer_mgr **ramixer_mgr);
+int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
+
+#endif /* CTAMIXER_H */