Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/include/sound/initval.h
10820 views
1
#ifndef __SOUND_INITVAL_H

2
#define __SOUND_INITVAL_H

3


4
/*

5
 *  Init values for soundcard modules

6
 *  Copyright (c) by Jaroslav Kysela <[email protected]>

7
 *

8
 *   This program is free software; you can redistribute it and/or modify

9
 *   it under the terms of the GNU General Public License as published by

10
 *   the Free Software Foundation; either version 2 of the License, or

11
 *   (at your option) any later version.

12
 *

13
 *   This program is distributed in the hope that it will be useful,

14
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

15
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

16
 *   GNU General Public License for more details.

17
 *

18
 *   You should have received a copy of the GNU General Public License

19
 *   along with this program; if not, write to the Free Software

20
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

21
 *

22
 */

23


24
#define SNDRV_AUTO_PORT		1

25
#define SNDRV_AUTO_IRQ		0xffff

26
#define SNDRV_AUTO_DMA		0xffff

27
#define SNDRV_AUTO_DMA_SIZE	(0x7fffffff)

28


29
#define SNDRV_DEFAULT_IDX1	(-1)

30
#define SNDRV_DEFAULT_STR1	NULL

31
#define SNDRV_DEFAULT_ENABLE1	1

32
#define SNDRV_DEFAULT_PORT1	SNDRV_AUTO_PORT

33
#define SNDRV_DEFAULT_IRQ1	SNDRV_AUTO_IRQ

34
#define SNDRV_DEFAULT_DMA1	SNDRV_AUTO_DMA

35
#define SNDRV_DEFAULT_DMA_SIZE1	SNDRV_AUTO_DMA_SIZE

36
#define SNDRV_DEFAULT_PTR1	SNDRV_DEFAULT_STR1

37


38
#define SNDRV_DEFAULT_IDX	{ [0 ... (SNDRV_CARDS-1)] = -1 }

39
#define SNDRV_DEFAULT_STR	{ [0 ... (SNDRV_CARDS-1)] = NULL }

40
#define SNDRV_DEFAULT_ENABLE	{ 1, [1 ... (SNDRV_CARDS-1)] = 0 }

41
#define SNDRV_DEFAULT_ENABLE_PNP { [0 ... (SNDRV_CARDS-1)] = 1 }

42
#ifdef CONFIG_PNP

43
#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE_PNP

44
#else

45
#define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE

46
#endif

47
#define SNDRV_DEFAULT_PORT	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_PORT }

48
#define SNDRV_DEFAULT_IRQ	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_IRQ }

49
#define SNDRV_DEFAULT_DMA	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA }

50
#define SNDRV_DEFAULT_DMA_SIZE	{ [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA_SIZE }

51
#define SNDRV_DEFAULT_PTR	SNDRV_DEFAULT_STR

52


53
#ifdef SNDRV_LEGACY_FIND_FREE_IRQ

54
#include <linux/interrupt.h>

55


56
static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)

57
{

58
	return IRQ_HANDLED;

59
}

60


61
static int snd_legacy_find_free_irq(int *irq_table)

62
{

63
	while (*irq_table != -1) {

64
		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,

65
				 IRQF_DISABLED | 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

77
static int snd_legacy_find_free_dma(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


92