Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 250 insertions, 0 deletions

diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c
new file mode 100644
index 000000000000..de39d212bc15
--- /dev/null
+++ b/sound/core/sound_oss.c
@@ -0,0 +1,250 @@
+/*
+ *  Advanced Linux Sound Architecture
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.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
+ *
+ */
+
+#include <sound/driver.h>
+
+#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/slab.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/minors.h>
+#include <sound/info.h>
+#include <linux/sound.h>
+
+#define SNDRV_OS_MINORS		256
+
+static struct list_head snd_oss_minors_hash[SNDRV_CARDS];
+
+static DECLARE_MUTEX(sound_oss_mutex);
+
+static snd_minor_t *snd_oss_minor_search(int minor)
+{
+	struct list_head *list;
+	snd_minor_t *mptr;
+
+	list_for_each(list, &snd_oss_minors_hash[SNDRV_MINOR_OSS_CARD(minor)]) {
+		mptr = list_entry(list, snd_minor_t, list);
+		if (mptr->number == minor)
+			return mptr;
+	}
+	return NULL;
+}
+
+static int snd_oss_kernel_minor(int type, snd_card_t * card, int dev)
+{
+	int minor;
+
+	switch (type) {
+	case SNDRV_OSS_DEVICE_TYPE_MIXER:
+		snd_assert(card != NULL && 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:
+		snd_assert(card != NULL && 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:
+		snd_assert(card != NULL && 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;
+	}
+	snd_assert(minor >= 0 && minor < SNDRV_OS_MINORS, return -EINVAL);
+	return minor;
+}
+
+int snd_register_oss_device(int type, snd_card_t * card, int dev, snd_minor_t * reg, const char *name)
+{
+	int minor = snd_oss_kernel_minor(type, card, dev);
+	int minor_unit;
+	snd_minor_t *preg;
+	int cidx = SNDRV_MINOR_OSS_CARD(minor);
+	int track2 = -1;
+	int register1 = -1, register2 = -1;
+
+	if (minor < 0)
+		return minor;
+	preg = (snd_minor_t *)kmalloc(sizeof(snd_minor_t), GFP_KERNEL);
+	if (preg == NULL)
+		return -ENOMEM;
+	*preg = *reg;
+	preg->number = minor;
+	preg->device = dev;
+	down(&sound_oss_mutex);
+	list_add_tail(&preg->list, &snd_oss_minors_hash[cidx]);
+	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(reg->f_ops, minor);
+	if (register1 != minor)
+		goto __end;
+	if (track2 >= 0) {
+		register2 = register_sound_special(reg->f_ops, track2);
+		if (register2 != track2)
+			goto __end;
+	}
+	up(&sound_oss_mutex);
+	return 0;
+
+      __end:
+      	if (register2 >= 0)
+      		unregister_sound_special(register2);
+      	if (register1 >= 0)
+      		unregister_sound_special(register1);
+      	list_del(&preg->list);
+	up(&sound_oss_mutex);
+	kfree(preg);
+      	return -EBUSY;
+}
+
+int snd_unregister_oss_device(int type, snd_card_t * card, int dev)
+{
+	int minor = snd_oss_kernel_minor(type, card, dev);
+	int cidx = SNDRV_MINOR_OSS_CARD(minor);
+	int track2 = -1;
+	snd_minor_t *mptr;
+
+	if (minor < 0)
+		return minor;
+	down(&sound_oss_mutex);
+	mptr = snd_oss_minor_search(minor);
+	if (mptr == NULL) {
+		up(&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);
+	list_del(&mptr->list);
+	up(&sound_oss_mutex);
+	kfree(mptr);
+	return 0;
+}
+
+/*
+ *  INFO PART
+ */
+
+#ifdef CONFIG_PROC_FS
+
+static snd_info_entry_t *snd_minor_info_oss_entry = NULL;
+
+static void snd_minor_info_oss_read(snd_info_entry_t *entry, snd_info_buffer_t * buffer)
+{
+	int card, dev;
+	struct list_head *list;
+	snd_minor_t *mptr;
+
+	down(&sound_oss_mutex);
+	for (card = 0; card < SNDRV_CARDS; card++) {
+		list_for_each(list, &snd_oss_minors_hash[card]) {
+			mptr = list_entry(list, snd_minor_t, list);
+			dev = SNDRV_MINOR_OSS_DEVICE(mptr->number);
+		        if (dev != SNDRV_MINOR_OSS_SNDSTAT &&
+			    dev != SNDRV_MINOR_OSS_SEQUENCER &&
+			    dev != SNDRV_MINOR_OSS_MUSIC)
+				snd_iprintf(buffer, "%3i: [%i-%2i]: %s\n", mptr->number, card, dev, mptr->comment);
+			else
+				snd_iprintf(buffer, "%3i:       : %s\n", mptr->number, mptr->comment);
+		}
+	}
+	up(&sound_oss_mutex);
+}
+
+#endif /* CONFIG_PROC_FS */
+
+int __init snd_minor_info_oss_init(void)
+{
+#ifdef CONFIG_PROC_FS
+	snd_info_entry_t *entry;
+
+	entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root);
+	if (entry) {
+		entry->c.text.read_size = PAGE_SIZE;
+		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;
+#endif
+	return 0;
+}
+
+int __exit snd_minor_info_oss_done(void)
+{
+#ifdef CONFIG_PROC_FS
+	if (snd_minor_info_oss_entry)
+		snd_info_unregister(snd_minor_info_oss_entry);
+#endif
+	return 0;
+}
+
+int __init snd_oss_init_module(void)
+{
+	int card;
+	
+	for (card = 0; card < SNDRV_CARDS; card++)
+		INIT_LIST_HEAD(&snd_oss_minors_hash[card]);
+	return 0;
+}
+
+#endif /* CONFIG_SND_OSSEMUL */