1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | #ifndef __SOUND_INITVAL_H |
3 | #define __SOUND_INITVAL_H |
4 | |
5 | /* |
6 | * Init values for soundcard modules |
7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
8 | */ |
9 | |
10 | #define SNDRV_AUTO_PORT 1 |
11 | #define SNDRV_AUTO_IRQ 0xffff |
12 | #define SNDRV_AUTO_DMA 0xffff |
13 | #define SNDRV_AUTO_DMA_SIZE (0x7fffffff) |
14 | |
15 | #define SNDRV_DEFAULT_IDX1 (-1) |
16 | #define SNDRV_DEFAULT_STR1 NULL |
17 | #define SNDRV_DEFAULT_ENABLE1 1 |
18 | #define SNDRV_DEFAULT_PORT1 SNDRV_AUTO_PORT |
19 | #define SNDRV_DEFAULT_IRQ1 SNDRV_AUTO_IRQ |
20 | #define SNDRV_DEFAULT_DMA1 SNDRV_AUTO_DMA |
21 | #define SNDRV_DEFAULT_DMA_SIZE1 SNDRV_AUTO_DMA_SIZE |
22 | #define SNDRV_DEFAULT_PTR1 SNDRV_DEFAULT_STR1 |
23 | |
24 | #define SNDRV_DEFAULT_IDX { [0 ... (SNDRV_CARDS-1)] = -1 } |
25 | #define SNDRV_DEFAULT_STR { [0 ... (SNDRV_CARDS-1)] = NULL } |
26 | #define SNDRV_DEFAULT_ENABLE { 1, [1 ... (SNDRV_CARDS-1)] = 0 } |
27 | #define SNDRV_DEFAULT_ENABLE_PNP { [0 ... (SNDRV_CARDS-1)] = 1 } |
28 | #ifdef CONFIG_PNP |
29 | #define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE_PNP |
30 | #else |
31 | #define SNDRV_DEFAULT_ENABLE_ISAPNP SNDRV_DEFAULT_ENABLE |
32 | #endif |
33 | #define SNDRV_DEFAULT_PORT { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_PORT } |
34 | #define SNDRV_DEFAULT_IRQ { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_IRQ } |
35 | #define SNDRV_DEFAULT_DMA { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA } |
36 | #define SNDRV_DEFAULT_DMA_SIZE { [0 ... (SNDRV_CARDS-1)] = SNDRV_AUTO_DMA_SIZE } |
37 | #define SNDRV_DEFAULT_PTR SNDRV_DEFAULT_STR |
38 | |
39 | #ifdef SNDRV_LEGACY_FIND_FREE_IOPORT |
40 | static long snd_legacy_find_free_ioport(const long *port_table, long size) |
41 | { |
42 | while (*port_table != -1) { |
43 | if (request_region(*port_table, size, "ALSA test" )) { |
44 | release_region(*port_table, size); |
45 | return *port_table; |
46 | } |
47 | port_table++; |
48 | } |
49 | return -1; |
50 | } |
51 | #endif |
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(const int *irq_table) |
62 | { |
63 | while (*irq_table != -1) { |
64 | if (!request_irq(*irq_table, snd_legacy_empty_irq_handler, |
65 | 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(const 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 | |