linux/include/sound/initval.h
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   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
  54static 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
  70static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)
  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                                 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
  91static 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
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