Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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_AUTO_PROBE
54static int snd_legacy_auto_probe(unsigned long *ports, int (*probe)(unsigned long port))
55{
56 int result = 0; /* number of detected cards */
57
58 while ((signed long)*ports != -1) {
59 if (probe(*ports) >= 0)
60 result++;
61 ports++;
62 }
63 return result;
64}
65#endif
66
67#ifdef SNDRV_LEGACY_FIND_FREE_IRQ
68#include <linux/interrupt.h>
69
70static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
71{
72 return IRQ_HANDLED;
73}
74
75static 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 SA_INTERRUPT, "ALSA Test IRQ", (void *) irq_table)) {
80 free_irq(*irq_table, (void *) irq_table);
81 return *irq_table;
82 }
83 irq_table++;
84 }
85 return -1;
86}
87#endif
88
89#ifdef SNDRV_LEGACY_FIND_FREE_DMA
90static int snd_legacy_find_free_dma(int *dma_table)
91{
92 while (*dma_table != -1) {
93 if (!request_dma(*dma_table, "ALSA Test DMA")) {
94 free_dma(*dma_table);
95 return *dma_table;
96 }
97 dma_table++;
98 }
99 return -1;
100}
101#endif
102
103#endif /* __SOUND_INITVAL_H */