xref: /linux/include/sound/initval.h (revision 93d90ad708b8da6efc0e487b66111aa9db7f70c7)
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@perex.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_IOPORT
54 static long snd_legacy_find_free_ioport(long *port_table, long size)
55 {
56 	while (*port_table != -1) {
57 		if (request_region(*port_table, size, "ALSA test")) {
58 			release_region(*port_table, size);
59 			return *port_table;
60 		}
61 		port_table++;
62 	}
63 	return -1;
64 }
65 #endif
66 
67 #ifdef SNDRV_LEGACY_FIND_FREE_IRQ
68 #include <linux/interrupt.h>
69 
70 static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)
71 {
72 	return IRQ_HANDLED;
73 }
74 
75 static int snd_legacy_find_free_irq(int *irq_table)
76 {
77 	while (*irq_table != -1) {
78 		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,
79 				 IRQF_PROBE_SHARED, "ALSA Test IRQ",
80 				 (void *) irq_table)) {
81 			free_irq(*irq_table, (void *) irq_table);
82 			return *irq_table;
83 		}
84 		irq_table++;
85 	}
86 	return -1;
87 }
88 #endif
89 
90 #ifdef SNDRV_LEGACY_FIND_FREE_DMA
91 static int snd_legacy_find_free_dma(int *dma_table)
92 {
93 	while (*dma_table != -1) {
94 		if (!request_dma(*dma_table, "ALSA Test DMA")) {
95 			free_dma(*dma_table);
96 			return *dma_table;
97 		}
98 		dma_table++;
99 	}
100 	return -1;
101 }
102 #endif
103 
104 #endif /* __SOUND_INITVAL_H */
105