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543537bd92
This patch creates a new kstrdup library function and changes the "local" implementations in several places to use this function. Most of the changes come from the sound and net subsystems. The sound part had already been acknowledged by Takashi Iwai and the net part by David S. Miller. I left UML alone for now because I would need more time to read the code carefully before making changes there. Signed-off-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
175 lines
3.9 KiB
C
175 lines
3.9 KiB
C
/*
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* Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
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*
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* Routines for control of EMU WaveTable chip
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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#include <linux/wait.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <sound/core.h>
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#include <sound/emux_synth.h>
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#include <linux/init.h>
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#include "emux_voice.h"
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MODULE_AUTHOR("Takashi Iwai");
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MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
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MODULE_LICENSE("GPL");
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/*
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* create a new hardware dependent device for Emu8000/Emu10k1
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*/
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int snd_emux_new(snd_emux_t **remu)
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{
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snd_emux_t *emu;
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*remu = NULL;
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emu = kcalloc(1, sizeof(*emu), GFP_KERNEL);
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if (emu == NULL)
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return -ENOMEM;
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spin_lock_init(&emu->voice_lock);
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init_MUTEX(&emu->register_mutex);
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emu->client = -1;
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#ifdef CONFIG_SND_SEQUENCER_OSS
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emu->oss_synth = NULL;
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#endif
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emu->max_voices = 0;
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emu->use_time = 0;
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init_timer(&emu->tlist);
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emu->tlist.function = snd_emux_timer_callback;
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emu->tlist.data = (unsigned long)emu;
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emu->timer_active = 0;
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*remu = emu;
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return 0;
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}
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/*
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*/
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int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name)
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{
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int err;
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snd_sf_callback_t sf_cb;
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snd_assert(emu->hw != NULL, return -EINVAL);
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snd_assert(emu->max_voices > 0, return -EINVAL);
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snd_assert(card != NULL, return -EINVAL);
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snd_assert(name != NULL, return -EINVAL);
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emu->card = card;
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emu->name = kstrdup(name, GFP_KERNEL);
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emu->voices = kcalloc(emu->max_voices, sizeof(snd_emux_voice_t), GFP_KERNEL);
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if (emu->voices == NULL)
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return -ENOMEM;
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/* create soundfont list */
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memset(&sf_cb, 0, sizeof(sf_cb));
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sf_cb.private_data = emu;
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sf_cb.sample_new = (snd_sf_sample_new_t)emu->ops.sample_new;
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sf_cb.sample_free = (snd_sf_sample_free_t)emu->ops.sample_free;
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sf_cb.sample_reset = (snd_sf_sample_reset_t)emu->ops.sample_reset;
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emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
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if (emu->sflist == NULL)
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return -ENOMEM;
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if ((err = snd_emux_init_hwdep(emu)) < 0)
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return err;
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snd_emux_init_voices(emu);
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snd_emux_init_seq(emu, card, index);
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#ifdef CONFIG_SND_SEQUENCER_OSS
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snd_emux_init_seq_oss(emu);
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#endif
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snd_emux_init_virmidi(emu, card);
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#ifdef CONFIG_PROC_FS
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snd_emux_proc_init(emu, card, index);
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#endif
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return 0;
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}
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/*
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*/
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int snd_emux_free(snd_emux_t *emu)
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{
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unsigned long flags;
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if (! emu)
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return -EINVAL;
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spin_lock_irqsave(&emu->voice_lock, flags);
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if (emu->timer_active)
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del_timer(&emu->tlist);
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spin_unlock_irqrestore(&emu->voice_lock, flags);
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#ifdef CONFIG_PROC_FS
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snd_emux_proc_free(emu);
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#endif
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snd_emux_delete_virmidi(emu);
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#ifdef CONFIG_SND_SEQUENCER_OSS
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snd_emux_detach_seq_oss(emu);
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#endif
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snd_emux_detach_seq(emu);
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snd_emux_delete_hwdep(emu);
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if (emu->sflist)
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snd_sf_free(emu->sflist);
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kfree(emu->voices);
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kfree(emu->name);
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kfree(emu);
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return 0;
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}
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EXPORT_SYMBOL(snd_emux_new);
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EXPORT_SYMBOL(snd_emux_register);
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EXPORT_SYMBOL(snd_emux_free);
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EXPORT_SYMBOL(snd_emux_terminate_all);
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EXPORT_SYMBOL(snd_emux_lock_voice);
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EXPORT_SYMBOL(snd_emux_unlock_voice);
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/* soundfont.c */
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EXPORT_SYMBOL(snd_sf_linear_to_log);
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/*
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* INIT part
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*/
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static int __init alsa_emux_init(void)
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{
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return 0;
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}
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static void __exit alsa_emux_exit(void)
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{
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}
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module_init(alsa_emux_init)
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module_exit(alsa_emux_exit)
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