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95 lines
2.7 KiB
95 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/** |
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. |
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* |
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* @File ctamixer.h |
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* |
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* @Brief |
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* This file contains the definition of the Audio Mixer |
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* resource management object. |
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* |
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* @Author Liu Chun |
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* @Date May 21 2008 |
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*/ |
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#ifndef CTAMIXER_H |
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#define CTAMIXER_H |
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#include "ctresource.h" |
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#include <linux/spinlock.h> |
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#include <sound/core.h> |
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/* Define the descriptor of a summation node resource */ |
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struct sum { |
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struct rsc rsc; /* Basic resource info */ |
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unsigned char idx[8]; |
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}; |
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/* Define sum resource request description info */ |
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struct sum_desc { |
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unsigned int msr; |
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}; |
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struct sum_mgr { |
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struct rsc_mgr mgr; /* Basic resource manager info */ |
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struct snd_card *card; /* pointer to this card */ |
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spinlock_t mgr_lock; |
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/* request one sum resource */ |
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int (*get_sum)(struct sum_mgr *mgr, |
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const struct sum_desc *desc, struct sum **rsum); |
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/* return one sum resource */ |
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int (*put_sum)(struct sum_mgr *mgr, struct sum *sum); |
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}; |
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/* Constructor and destructor of daio resource manager */ |
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int sum_mgr_create(struct hw *hw, struct sum_mgr **rsum_mgr); |
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int sum_mgr_destroy(struct sum_mgr *sum_mgr); |
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/* Define the descriptor of a amixer resource */ |
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struct amixer_rsc_ops; |
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struct amixer { |
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struct rsc rsc; /* Basic resource info */ |
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unsigned char idx[8]; |
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struct rsc *input; /* pointer to a resource acting as source */ |
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struct sum *sum; /* Put amixer output to this summation node */ |
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const struct amixer_rsc_ops *ops; /* AMixer specific operations */ |
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}; |
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struct amixer_rsc_ops { |
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int (*set_input)(struct amixer *amixer, struct rsc *rsc); |
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int (*set_scale)(struct amixer *amixer, unsigned int scale); |
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int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv); |
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int (*set_sum)(struct amixer *amixer, struct sum *sum); |
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int (*commit_write)(struct amixer *amixer); |
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/* Only for interleaved recording */ |
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int (*commit_raw_write)(struct amixer *amixer); |
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int (*setup)(struct amixer *amixer, struct rsc *input, |
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unsigned int scale, struct sum *sum); |
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int (*get_scale)(struct amixer *amixer); |
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}; |
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/* Define amixer resource request description info */ |
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struct amixer_desc { |
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unsigned int msr; |
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}; |
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struct amixer_mgr { |
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struct rsc_mgr mgr; /* Basic resource manager info */ |
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struct snd_card *card; /* pointer to this card */ |
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spinlock_t mgr_lock; |
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/* request one amixer resource */ |
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int (*get_amixer)(struct amixer_mgr *mgr, |
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const struct amixer_desc *desc, |
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struct amixer **ramixer); |
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/* return one amixer resource */ |
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int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer); |
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}; |
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/* Constructor and destructor of amixer resource manager */ |
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int amixer_mgr_create(struct hw *hw, struct amixer_mgr **ramixer_mgr); |
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int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr); |
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#endif /* CTAMIXER_H */
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