xref: /linux/include/sound/initval.h (revision f3d9478b2ce468c3115b02ecae7e975990697f15)
1 #ifndef __SOUND_INITVAL_H
2 #define __SOUND_INITVAL_H
3 
4 /*
5  *  Init values for soundcard modules
6  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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, struct pt_regs *regs)
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 				 SA_INTERRUPT, "ALSA Test IRQ", (void *) irq_table)) {
66 			free_irq(*irq_table, (void *) irq_table);
67 			return *irq_table;
68 		}
69 		irq_table++;
70 	}
71 	return -1;
72 }
73 #endif
74 
75 #ifdef SNDRV_LEGACY_FIND_FREE_DMA
76 static int snd_legacy_find_free_dma(int *dma_table)
77 {
78 	while (*dma_table != -1) {
79 		if (!request_dma(*dma_table, "ALSA Test DMA")) {
80 			free_dma(*dma_table);
81 			return *dma_table;
82 		}
83 		dma_table++;
84 	}
85 	return -1;
86 }
87 #endif
88 
89 #endif /* __SOUND_INITVAL_H */
90