1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef __SOUND_INITVAL_H
3#define __SOUND_INITVAL_H
4
5/*
6 *  Init values for soundcard modules
7 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
8 */
9
10#define SNDRV_AUTO_PORT		1
11#define SNDRV_AUTO_IRQ		0xffff
12#define SNDRV_AUTO_DMA		0xffff
13#define SNDRV_AUTO_DMA_SIZE	(0x7fffffff)
14
15#define SNDRV_DEFAULT_IDX1	(-1)
16#define SNDRV_DEFAULT_STR1	NULL
17#define SNDRV_DEFAULT_ENABLE1	1
18#define SNDRV_DEFAULT_PORT1	SNDRV_AUTO_PORT
19#define SNDRV_DEFAULT_IRQ1	SNDRV_AUTO_IRQ
20#define SNDRV_DEFAULT_DMA1	SNDRV_AUTO_DMA
21#define SNDRV_DEFAULT_DMA_SIZE1	SNDRV_AUTO_DMA_SIZE
22#define SNDRV_DEFAULT_PTR1	SNDRV_DEFAULT_STR1
23
24#define SNDRV_DEFAULT_IDX	{ [0 ... (SNDRV_CARDS-1)] = -1 }
25#define SNDRV_DEFAULT_STR	{ [0 ... (SNDRV_CARDS-1)] = NULL }
26#define SNDRV_DEFAULT_ENABLE	{ 1, [1 ... (SNDRV_CARDS-1)] = 0 }
27#define SNDRV_DEFAULT_ENABLE_PNP { [0 ... (SNDRV_CARDS-1)] = 1 }
28#ifdef CONFIG_PNP
29#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE_PNP
30#else
31#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE
32#endif
33#define SNDRV_DEFAULT_PORT	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_PORT }
34#define SNDRV_DEFAULT_IRQ	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_IRQ }
35#define SNDRV_DEFAULT_DMA	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA }
36#define SNDRV_DEFAULT_DMA_SIZE	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA_SIZE }
37#define SNDRV_DEFAULT_PTR	SNDRV_DEFAULT_STR
38
39#ifdef SNDRV_LEGACY_FIND_FREE_IOPORT
40static long snd_legacy_find_free_ioport(const long *port_table, long size)
41{
42	while (*port_table != -1) {
43		if (request_region(*port_table, size, "ALSA test")) {
44			release_region(*port_table, size);
45			return *port_table;
46		}
47		port_table++;
48	}
49	return -1;
50}
51#endif
52
53#ifdef SNDRV_LEGACY_FIND_FREE_IRQ
54#include <linux/interrupt.h>
55
56static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)
57{
58	return IRQ_HANDLED;
59}
60
61static int snd_legacy_find_free_irq(const int *irq_table)
62{
63	while (*irq_table != -1) {
64		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,
65				 IRQF_PROBE_SHARED, "ALSA Test IRQ",
66				 (void *) irq_table)) {
67			free_irq(*irq_table, (void *) irq_table);
68			return *irq_table;
69		}
70		irq_table++;
71	}
72	return -1;
73}
74#endif
75
76#ifdef SNDRV_LEGACY_FIND_FREE_DMA
77static int snd_legacy_find_free_dma(const int *dma_table)
78{
79	while (*dma_table != -1) {
80		if (!request_dma(*dma_table, "ALSA Test DMA")) {
81			free_dma(*dma_table);
82			return *dma_table;
83		}
84		dma_table++;
85	}
86	return -1;
87}
88#endif
89
90#endif /* __SOUND_INITVAL_H */
91