linux/sound/drivers/opl4/opl4_lib.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Functions for accessing OPL4 devices
 * Copyright (c) 2003 by Clemens Ladisch <[email protected]>
 */

#include "opl4_local.h"
#include <sound/initval.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/io.h>

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

static inline void snd_opl4_wait(struct snd_opl4 *opl4)
{ … }

void snd_opl4_write(struct snd_opl4 *opl4, u8 reg, u8 value)
{ … }

EXPORT_SYMBOL(…);

u8 snd_opl4_read(struct snd_opl4 *opl4, u8 reg)
{ … }

EXPORT_SYMBOL(…);

void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size)
{ … }

EXPORT_SYMBOL(…);

void snd_opl4_write_memory(struct snd_opl4 *opl4, const char *buf, int offset, int size)
{ … }

EXPORT_SYMBOL(…);

static void snd_opl4_enable_opl4(struct snd_opl4 *opl4)
{ … }

static int snd_opl4_detect(struct snd_opl4 *opl4)
{ … }

#if IS_ENABLED(CONFIG_SND_SEQUENCER)
static void snd_opl4_seq_dev_free(struct snd_seq_device *seq_dev)
{ … }

static int snd_opl4_create_seq_dev(struct snd_opl4 *opl4, int seq_device)
{ … }
#endif

static void snd_opl4_free(struct snd_opl4 *opl4)
{ … }

static int snd_opl4_dev_free(struct snd_device *device)
{ … }

int snd_opl4_create(struct snd_card *card,
		    unsigned long fm_port, unsigned long pcm_port,
		    int seq_device,
		    struct snd_opl3 **ropl3, struct snd_opl4 **ropl4)
{ … }

EXPORT_SYMBOL(…);