include/sound/initval.h

   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
  54 static 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
  70 static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
  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                                  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
  90 static 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 */