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Diffstat (limited to 'ANDROID_3.4.5/sound/core/sound_oss.c')
-rw-r--r--ANDROID_3.4.5/sound/core/sound_oss.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/ANDROID_3.4.5/sound/core/sound_oss.c b/ANDROID_3.4.5/sound/core/sound_oss.c
deleted file mode 100644
index ec860091..00000000
--- a/ANDROID_3.4.5/sound/core/sound_oss.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Advanced Linux Sound Architecture
- * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifdef CONFIG_SND_OSSEMUL
-
-#if !defined(CONFIG_SOUND) && !(defined(MODULE) && defined(CONFIG_SOUND_MODULE))
-#error "Enable the OSS soundcore multiplexer (CONFIG_SOUND) in the kernel."
-#endif
-
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <sound/core.h>
-#include <sound/minors.h>
-#include <sound/info.h>
-#include <linux/sound.h>
-#include <linux/mutex.h>
-
-#define SNDRV_OSS_MINORS 128
-
-static struct snd_minor *snd_oss_minors[SNDRV_OSS_MINORS];
-static DEFINE_MUTEX(sound_oss_mutex);
-
-/* NOTE: This function increments the refcount of the associated card like
- * snd_lookup_minor_data(); the caller must call snd_card_unref() appropriately
- */
-void *snd_lookup_oss_minor_data(unsigned int minor, int type)
-{
- struct snd_minor *mreg;
- void *private_data;
-
- if (minor >= ARRAY_SIZE(snd_oss_minors))
- return NULL;
- mutex_lock(&sound_oss_mutex);
- mreg = snd_oss_minors[minor];
- if (mreg && mreg->type == type) {
- private_data = mreg->private_data;
- if (private_data && mreg->card_ptr)
- atomic_inc(&mreg->card_ptr->refcount);
- } else
- private_data = NULL;
- mutex_unlock(&sound_oss_mutex);
- return private_data;
-}
-
-EXPORT_SYMBOL(snd_lookup_oss_minor_data);
-
-static int snd_oss_kernel_minor(int type, struct snd_card *card, int dev)
-{
- int minor;
-
- switch (type) {
- case SNDRV_OSS_DEVICE_TYPE_MIXER:
- if (snd_BUG_ON(!card || dev < 0 || dev > 1))
- return -EINVAL;
- minor = SNDRV_MINOR_OSS(card->number, (dev ? SNDRV_MINOR_OSS_MIXER1 : SNDRV_MINOR_OSS_MIXER));
- break;
- case SNDRV_OSS_DEVICE_TYPE_SEQUENCER:
- minor = SNDRV_MINOR_OSS_SEQUENCER;
- break;
- case SNDRV_OSS_DEVICE_TYPE_MUSIC:
- minor = SNDRV_MINOR_OSS_MUSIC;
- break;
- case SNDRV_OSS_DEVICE_TYPE_PCM:
- if (snd_BUG_ON(!card || dev < 0 || dev > 1))
- return -EINVAL;
- minor = SNDRV_MINOR_OSS(card->number, (dev ? SNDRV_MINOR_OSS_PCM1 : SNDRV_MINOR_OSS_PCM));
- break;
- case SNDRV_OSS_DEVICE_TYPE_MIDI:
- if (snd_BUG_ON(!card || dev < 0 || dev > 1))
- return -EINVAL;
- minor = SNDRV_MINOR_OSS(card->number, (dev ? SNDRV_MINOR_OSS_MIDI1 : SNDRV_MINOR_OSS_MIDI));
- break;
- case SNDRV_OSS_DEVICE_TYPE_DMFM:
- minor = SNDRV_MINOR_OSS(card->number, SNDRV_MINOR_OSS_DMFM);
- break;
- case SNDRV_OSS_DEVICE_TYPE_SNDSTAT:
- minor = SNDRV_MINOR_OSS_SNDSTAT;
- break;
- default:
- return -EINVAL;
- }
- if (minor < 0 || minor >= SNDRV_OSS_MINORS)
- return -EINVAL;
- return minor;
-}
-
-int snd_register_oss_device(int type, struct snd_card *card, int dev,
- const struct file_operations *f_ops, void *private_data,
- const char *name)
-{
- int minor = snd_oss_kernel_minor(type, card, dev);
- int minor_unit;
- struct snd_minor *preg;
- int cidx = SNDRV_MINOR_OSS_CARD(minor);
- int track2 = -1;
- int register1 = -1, register2 = -1;
- struct device *carddev = snd_card_get_device_link(card);
-
- if (card && card->number >= 8)
- return 0; /* ignore silently */
- if (minor < 0)
- return minor;
- preg = kmalloc(sizeof(struct snd_minor), GFP_KERNEL);
- if (preg == NULL)
- return -ENOMEM;
- preg->type = type;
- preg->card = card ? card->number : -1;
- preg->device = dev;
- preg->f_ops = f_ops;
- preg->private_data = private_data;
- preg->card_ptr = card;
- mutex_lock(&sound_oss_mutex);
- snd_oss_minors[minor] = preg;
- minor_unit = SNDRV_MINOR_OSS_DEVICE(minor);
- switch (minor_unit) {
- case SNDRV_MINOR_OSS_PCM:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_AUDIO);
- break;
- case SNDRV_MINOR_OSS_MIDI:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_DMMIDI);
- break;
- case SNDRV_MINOR_OSS_MIDI1:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_DMMIDI1);
- break;
- }
- register1 = register_sound_special_device(f_ops, minor, carddev);
- if (register1 != minor)
- goto __end;
- if (track2 >= 0) {
- register2 = register_sound_special_device(f_ops, track2,
- carddev);
- if (register2 != track2)
- goto __end;
- snd_oss_minors[track2] = preg;
- }
- mutex_unlock(&sound_oss_mutex);
- return 0;
-
- __end:
- if (register2 >= 0)
- unregister_sound_special(register2);
- if (register1 >= 0)
- unregister_sound_special(register1);
- snd_oss_minors[minor] = NULL;
- mutex_unlock(&sound_oss_mutex);
- kfree(preg);
- return -EBUSY;
-}
-
-EXPORT_SYMBOL(snd_register_oss_device);
-
-int snd_unregister_oss_device(int type, struct snd_card *card, int dev)
-{
- int minor = snd_oss_kernel_minor(type, card, dev);
- int cidx = SNDRV_MINOR_OSS_CARD(minor);
- int track2 = -1;
- struct snd_minor *mptr;
-
- if (card && card->number >= 8)
- return 0;
- if (minor < 0)
- return minor;
- mutex_lock(&sound_oss_mutex);
- mptr = snd_oss_minors[minor];
- if (mptr == NULL) {
- mutex_unlock(&sound_oss_mutex);
- return -ENOENT;
- }
- unregister_sound_special(minor);
- switch (SNDRV_MINOR_OSS_DEVICE(minor)) {
- case SNDRV_MINOR_OSS_PCM:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_AUDIO);
- break;
- case SNDRV_MINOR_OSS_MIDI:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_DMMIDI);
- break;
- case SNDRV_MINOR_OSS_MIDI1:
- track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_DMMIDI1);
- break;
- }
- if (track2 >= 0) {
- unregister_sound_special(track2);
- snd_oss_minors[track2] = NULL;
- }
- snd_oss_minors[minor] = NULL;
- mutex_unlock(&sound_oss_mutex);
- kfree(mptr);
- return 0;
-}
-
-EXPORT_SYMBOL(snd_unregister_oss_device);
-
-/*
- * INFO PART
- */
-
-#ifdef CONFIG_PROC_FS
-
-static struct snd_info_entry *snd_minor_info_oss_entry;
-
-static const char *snd_oss_device_type_name(int type)
-{
- switch (type) {
- case SNDRV_OSS_DEVICE_TYPE_MIXER:
- return "mixer";
- case SNDRV_OSS_DEVICE_TYPE_SEQUENCER:
- case SNDRV_OSS_DEVICE_TYPE_MUSIC:
- return "sequencer";
- case SNDRV_OSS_DEVICE_TYPE_PCM:
- return "digital audio";
- case SNDRV_OSS_DEVICE_TYPE_MIDI:
- return "raw midi";
- case SNDRV_OSS_DEVICE_TYPE_DMFM:
- return "hardware dependent";
- default:
- return "?";
- }
-}
-
-static void snd_minor_info_oss_read(struct snd_info_entry *entry,
- struct snd_info_buffer *buffer)
-{
- int minor;
- struct snd_minor *mptr;
-
- mutex_lock(&sound_oss_mutex);
- for (minor = 0; minor < SNDRV_OSS_MINORS; ++minor) {
- if (!(mptr = snd_oss_minors[minor]))
- continue;
- if (mptr->card >= 0)
- snd_iprintf(buffer, "%3i: [%i-%2i]: %s\n", minor,
- mptr->card, mptr->device,
- snd_oss_device_type_name(mptr->type));
- else
- snd_iprintf(buffer, "%3i: : %s\n", minor,
- snd_oss_device_type_name(mptr->type));
- }
- mutex_unlock(&sound_oss_mutex);
-}
-
-
-int __init snd_minor_info_oss_init(void)
-{
- struct snd_info_entry *entry;
-
- entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root);
- if (entry) {
- entry->c.text.read = snd_minor_info_oss_read;
- if (snd_info_register(entry) < 0) {
- snd_info_free_entry(entry);
- entry = NULL;
- }
- }
- snd_minor_info_oss_entry = entry;
- return 0;
-}
-
-int __exit snd_minor_info_oss_done(void)
-{
- snd_info_free_entry(snd_minor_info_oss_entry);
- return 0;
-}
-#endif /* CONFIG_PROC_FS */
-
-#endif /* CONFIG_SND_OSSEMUL */
generated by cgit (git 2.34.1) at 2025-06-06 08:34:27 +0000