91 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2#ifndef __SOUND_INITVAL_H3#define __SOUND_INITVAL_H4 5/*6 * Init values for soundcard modules7 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>8 */9 10#define SNDRV_AUTO_PORT 111#define SNDRV_AUTO_IRQ 0xffff12#define SNDRV_AUTO_DMA 0xffff13#define SNDRV_AUTO_DMA_SIZE (0x7fffffff)14 15#define SNDRV_DEFAULT_IDX1 (-1)16#define SNDRV_DEFAULT_STR1 NULL17#define SNDRV_DEFAULT_ENABLE1 118#define SNDRV_DEFAULT_PORT1 SNDRV_AUTO_PORT19#define SNDRV_DEFAULT_IRQ1 SNDRV_AUTO_IRQ20#define SNDRV_DEFAULT_DMA1 SNDRV_AUTO_DMA21#define SNDRV_DEFAULT_DMA_SIZE1 SNDRV_AUTO_DMA_SIZE22#define SNDRV_DEFAULT_PTR1 SNDRV_DEFAULT_STR123 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_PNP29#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE_PNP30#else31#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE32#endif33#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_STR38 39#ifdef SNDRV_LEGACY_FIND_FREE_IOPORT40static 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#endif52 53#ifdef SNDRV_LEGACY_FIND_FREE_IRQ54#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#endif75 76#ifdef SNDRV_LEGACY_FIND_FREE_DMA77static 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#endif89 90#endif /* __SOUND_INITVAL_H */91