diff options
Diffstat (limited to '')
| -rw-r--r-- | include/sound/initval.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/sound/initval.h b/include/sound/initval.h new file mode 100644 index 0000000000..a1ff3b4865 --- /dev/null +++ b/include/sound/initval.h @@ -0,0 +1,90 @@ +/* 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 <perex@perex.cz> + */ + +#define SNDRV_AUTO_PORT 1 +#define SNDRV_AUTO_IRQ 0xffff +#define SNDRV_AUTO_DMA 0xffff +#define SNDRV_AUTO_DMA_SIZE (0x7fffffff) + +#define SNDRV_DEFAULT_IDX1 (-1) +#define SNDRV_DEFAULT_STR1 NULL +#define SNDRV_DEFAULT_ENABLE1 1 +#define SNDRV_DEFAULT_PORT1 SNDRV_AUTO_PORT +#define SNDRV_DEFAULT_IRQ1 SNDRV_AUTO_IRQ +#define SNDRV_DEFAULT_DMA1 SNDRV_AUTO_DMA +#define SNDRV_DEFAULT_DMA_SIZE1 SNDRV_AUTO_DMA_SIZE +#define SNDRV_DEFAULT_PTR1 SNDRV_DEFAULT_STR1 + +#define SNDRV_DEFAULT_IDX { [0 ... (SNDRV_CARDS-1)] = -1 } +#define SNDRV_DEFAULT_STR { [0 ... (SNDRV_CARDS-1)] = NULL } +#define SNDRV_DEFAULT_ENABLE { 1, [1 ... (SNDRV_CARDS-1)] = 0 } +#define SNDRV_DEFAULT_ENABLE_PNP { [0 ... (SNDRV_CARDS-1)] = 1 } +#ifdef CONFIG_PNP +#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE_PNP +#else +#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE +#endif +#define SNDRV_DEFAULT_PORT { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_PORT } +#define SNDRV_DEFAULT_IRQ { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_IRQ } +#define SNDRV_DEFAULT_DMA { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA } +#define SNDRV_DEFAULT_DMA_SIZE { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA_SIZE } +#define SNDRV_DEFAULT_PTR SNDRV_DEFAULT_STR + +#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 */ |