cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ctamixer.h (2776B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
      4 *
      5 * @File	ctamixer.h
      6 *
      7 * @Brief
      8 * This file contains the definition of the Audio Mixer
      9 * resource management object.
     10 *
     11 * @Author	Liu Chun
     12 * @Date 	May 21 2008
     13 */
     14
     15#ifndef CTAMIXER_H
     16#define CTAMIXER_H
     17
     18#include "ctresource.h"
     19#include <linux/spinlock.h>
     20#include <sound/core.h>
     21
     22/* Define the descriptor of a summation node resource */
     23struct sum {
     24	struct rsc rsc;		/* Basic resource info */
     25	unsigned char idx[8];
     26};
     27
     28/* Define sum resource request description info */
     29struct sum_desc {
     30	unsigned int msr;
     31};
     32
     33struct sum_mgr {
     34	struct rsc_mgr mgr;	/* Basic resource manager info */
     35	struct snd_card *card;	/* pointer to this card */
     36	spinlock_t mgr_lock;
     37
     38	 /* request one sum resource */
     39	int (*get_sum)(struct sum_mgr *mgr,
     40			const struct sum_desc *desc, struct sum **rsum);
     41	/* return one sum resource */
     42	int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
     43};
     44
     45/* Constructor and destructor of daio resource manager */
     46int sum_mgr_create(struct hw *hw, struct sum_mgr **rsum_mgr);
     47int sum_mgr_destroy(struct sum_mgr *sum_mgr);
     48
     49/* Define the descriptor of a amixer resource */
     50struct amixer_rsc_ops;
     51
     52struct amixer {
     53	struct rsc rsc;		/* Basic resource info */
     54	unsigned char idx[8];
     55	struct rsc *input;	/* pointer to a resource acting as source */
     56	struct sum *sum;	/* Put amixer output to this summation node */
     57	const struct amixer_rsc_ops *ops;	/* AMixer specific operations */
     58};
     59
     60struct amixer_rsc_ops {
     61	int (*set_input)(struct amixer *amixer, struct rsc *rsc);
     62	int (*set_scale)(struct amixer *amixer, unsigned int scale);
     63	int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
     64	int (*set_sum)(struct amixer *amixer, struct sum *sum);
     65	int (*commit_write)(struct amixer *amixer);
     66	/* Only for interleaved recording */
     67	int (*commit_raw_write)(struct amixer *amixer);
     68	int (*setup)(struct amixer *amixer, struct rsc *input,
     69			unsigned int scale, struct sum *sum);
     70	int (*get_scale)(struct amixer *amixer);
     71};
     72
     73/* Define amixer resource request description info */
     74struct amixer_desc {
     75	unsigned int msr;
     76};
     77
     78struct amixer_mgr {
     79	struct rsc_mgr mgr;	/* Basic resource manager info */
     80	struct snd_card *card;	/* pointer to this card */
     81	spinlock_t mgr_lock;
     82
     83	 /* request one amixer resource */
     84	int (*get_amixer)(struct amixer_mgr *mgr,
     85			  const struct amixer_desc *desc,
     86			  struct amixer **ramixer);
     87	/* return one amixer resource */
     88	int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
     89};
     90
     91/* Constructor and destructor of amixer resource manager */
     92int amixer_mgr_create(struct hw *hw, struct amixer_mgr **ramixer_mgr);
     93int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
     94
     95#endif /* CTAMIXER_H */