linux/sound/isa/sb/sb8_main.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 *                   Uros Bizjak <[email protected]>
 *
 *  Routines for control of 8-bit SoundBlaster cards and clones
 *  Please note: I don't have access to old SB8 soundcards.
 *
 * --
 *
 * Thu Apr 29 20:36:17 BST 1999 George David Morrison <[email protected]>
 *   DSP can't respond to commands whilst in "high speed" mode. Caused 
 *   glitching during playback. Fixed.
 *
 * Wed Jul 12 22:02:55 CEST 2000 Uros Bizjak <[email protected]>
 *   Cleaned up and rewrote lowlevel routines.
 */

#include <linux/io.h>
#include <asm/dma.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/sb.h>

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

#define SB8_CLOCK …
#define SB8_DEN(v) …
#define SB8_RATE(v) …

static const struct snd_ratnum clock = …;

static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clock = …;

static const struct snd_ratnum stereo_clocks[] = …;

static int snd_sb8_hw_constraint_rate_channels(struct snd_pcm_hw_params *params,
					       struct snd_pcm_hw_rule *rule)
{ … }

static int snd_sb8_hw_constraint_channels_rate(struct snd_pcm_hw_params *params,
					       struct snd_pcm_hw_rule *rule)
{ … }

static int snd_sb8_playback_prepare(struct snd_pcm_substream *substream)
{ … }

static int snd_sb8_playback_trigger(struct snd_pcm_substream *substream,
				    int cmd)
{ … }

static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
{ … }

static int snd_sb8_capture_trigger(struct snd_pcm_substream *substream,
				   int cmd)
{ … }

irqreturn_t snd_sb8dsp_interrupt(struct snd_sb *chip)
{ … }

static snd_pcm_uframes_t snd_sb8_playback_pointer(struct snd_pcm_substream *substream)
{ … }

static snd_pcm_uframes_t snd_sb8_capture_pointer(struct snd_pcm_substream *substream)
{ … }

/*

 */

static const struct snd_pcm_hardware snd_sb8_playback = …;

static const struct snd_pcm_hardware snd_sb8_capture = …;

/*
 *
 */
 
static int snd_sb8_open(struct snd_pcm_substream *substream)
{ … }

static int snd_sb8_close(struct snd_pcm_substream *substream)
{ … }

/*
 *  Initialization part
 */
 
static const struct snd_pcm_ops snd_sb8_playback_ops = …;

static const struct snd_pcm_ops snd_sb8_capture_ops = …;

int snd_sb8dsp_pcm(struct snd_sb *chip, int device)
{ … }

EXPORT_SYMBOL(…);
EXPORT_SYMBOL(…);
  /* sb8_midi.c */
EXPORT_SYMBOL(…);
EXPORT_SYMBOL(…);