linux/include/sound/initval.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __SOUND_INITVAL_H
#define __SOUND_INITVAL_H

/*
 *  Init values for soundcard modules
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 */

#define SNDRV_AUTO_PORT
#define SNDRV_AUTO_IRQ
#define SNDRV_AUTO_DMA
#define SNDRV_AUTO_DMA_SIZE

#define SNDRV_DEFAULT_IDX1
#define SNDRV_DEFAULT_STR1
#define SNDRV_DEFAULT_ENABLE1
#define SNDRV_DEFAULT_PORT1
#define SNDRV_DEFAULT_IRQ1
#define SNDRV_DEFAULT_DMA1
#define SNDRV_DEFAULT_DMA_SIZE1
#define SNDRV_DEFAULT_PTR1

#define SNDRV_DEFAULT_IDX
#define SNDRV_DEFAULT_STR
#define SNDRV_DEFAULT_ENABLE
#define SNDRV_DEFAULT_ENABLE_PNP
#ifdef CONFIG_PNP
#define SNDRV_DEFAULT_ENABLE_ISAPNP
#else
#define SNDRV_DEFAULT_ENABLE_ISAPNP
#endif
#define SNDRV_DEFAULT_PORT
#define SNDRV_DEFAULT_IRQ
#define SNDRV_DEFAULT_DMA
#define SNDRV_DEFAULT_DMA_SIZE
#define SNDRV_DEFAULT_PTR

#ifdef SNDRV_LEGACY_FIND_FREE_IOPORT
static long snd_legacy_find_free_ioport(const long *port_table, long size)
{
	while (*port_table != -1) {
		if (request_region(*port_table, size, "ALSA test")) {
			release_region(*port_table, size);
			return *port_table;
		}
		port_table++;
	}
	return -1;
}
#endif

#ifdef SNDRV_LEGACY_FIND_FREE_IRQ
#include <linux/interrupt.h>

static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)
{
	return IRQ_HANDLED;
}

static int snd_legacy_find_free_irq(const int *irq_table)
{
	while (*irq_table != -1) {
		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,
				 IRQF_PROBE_SHARED, "ALSA Test IRQ",
				 (void *) irq_table)) {
			free_irq(*irq_table, (void *) irq_table);
			return *irq_table;
		}
		irq_table++;
	}
	return -1;
}
#endif

#ifdef SNDRV_LEGACY_FIND_FREE_DMA
static int snd_legacy_find_free_dma(const int *dma_table)
{
	while (*dma_table != -1) {
		if (!request_dma(*dma_table, "ALSA Test DMA")) {
			free_dma(*dma_table);
			return *dma_table;
		}
		dma_table++;
	}
	return -1;
}
#endif

#endif /* __SOUND_INITVAL_H */