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xianfeng |
/*
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* OSS emulation layer for the mixer interface
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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*
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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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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/string.h>
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#include <sound/core.h>
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#include <sound/minors.h>
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#include <sound/control.h>
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#include <sound/info.h>
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#include <sound/mixer_oss.h>
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#include <linux/soundcard.h>
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#define OSS_ALSAEMULVER _SIOR ('M', 249, int)
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MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
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MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
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static int snd_mixer_oss_open(struct inode *inode, struct file *file)
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{
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struct snd_card *card;
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struct snd_mixer_oss_file *fmixer;
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int err;
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card = snd_lookup_oss_minor_data(iminor(inode),
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SNDRV_OSS_DEVICE_TYPE_MIXER);
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if (card == NULL)
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return -ENODEV;
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if (card->mixer_oss == NULL)
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return -ENODEV;
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err = snd_card_file_add(card, file);
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if (err < 0)
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return err;
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fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
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if (fmixer == NULL) {
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snd_card_file_remove(card, file);
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return -ENOMEM;
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}
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fmixer->card = card;
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fmixer->mixer = card->mixer_oss;
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file->private_data = fmixer;
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if (!try_module_get(card->module)) {
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kfree(fmixer);
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snd_card_file_remove(card, file);
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return -EFAULT;
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}
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return 0;
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}
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static int snd_mixer_oss_release(struct inode *inode, struct file *file)
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{
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struct snd_mixer_oss_file *fmixer;
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if (file->private_data) {
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fmixer = (struct snd_mixer_oss_file *) file->private_data;
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module_put(fmixer->card->module);
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snd_card_file_remove(fmixer->card, file);
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kfree(fmixer);
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}
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return 0;
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}
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static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer,
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mixer_info __user *_info)
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{
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struct snd_card *card = fmixer->card;
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct mixer_info info;
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memset(&info, 0, sizeof(info));
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strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
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strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
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info.modify_counter = card->mixer_oss_change_count;
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if (copy_to_user(_info, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer,
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_old_mixer_info __user *_info)
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{
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struct snd_card *card = fmixer->card;
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struct snd_mixer_oss *mixer = fmixer->mixer;
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_old_mixer_info info;
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memset(&info, 0, sizeof(info));
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strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
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strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
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if (copy_to_user(_info, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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int result = 0;
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if (mixer == NULL)
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return -EIO;
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if (mixer->get_recsrc && mixer->put_recsrc)
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result |= SOUND_CAP_EXCL_INPUT;
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return result;
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}
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static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct snd_mixer_oss_slot *pslot;
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int result = 0, chn;
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if (mixer == NULL)
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return -EIO;
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->put_volume || pslot->put_recsrc)
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result |= 1 << chn;
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}
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return result;
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}
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static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct snd_mixer_oss_slot *pslot;
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int result = 0, chn;
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if (mixer == NULL)
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return -EIO;
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->put_volume && pslot->stereo)
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result |= 1 << chn;
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}
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return result;
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}
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static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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int result = 0;
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if (mixer == NULL)
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return -EIO;
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if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
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result = mixer->mask_recsrc;
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} else {
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struct snd_mixer_oss_slot *pslot;
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int chn;
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->put_recsrc)
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result |= 1 << chn;
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}
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}
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return result;
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}
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static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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int result = 0;
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if (mixer == NULL)
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return -EIO;
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if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
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int err;
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if ((err = mixer->get_recsrc(fmixer, &result)) < 0)
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return err;
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result = 1 << result;
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} else {
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struct snd_mixer_oss_slot *pslot;
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int chn;
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->get_recsrc) {
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int active = 0;
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pslot->get_recsrc(fmixer, pslot, &active);
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if (active)
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result |= 1 << chn;
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}
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}
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}
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return mixer->oss_recsrc = result;
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}
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static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct snd_mixer_oss_slot *pslot;
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int chn, active;
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int result = 0;
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if (mixer == NULL)
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return -EIO;
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if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */
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if (recsrc & ~mixer->oss_recsrc)
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recsrc &= ~mixer->oss_recsrc;
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mixer->put_recsrc(fmixer, ffz(~recsrc));
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mixer->get_recsrc(fmixer, &result);
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result = 1 << result;
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}
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->put_recsrc) {
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active = (recsrc & (1 << chn)) ? 1 : 0;
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pslot->put_recsrc(fmixer, pslot, active);
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}
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}
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if (! result) {
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for (chn = 0; chn < 31; chn++) {
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pslot = &mixer->slots[chn];
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if (pslot->get_recsrc) {
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active = 0;
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pslot->get_recsrc(fmixer, pslot, &active);
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if (active)
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result |= 1 << chn;
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}
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}
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}
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return result;
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}
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static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
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{
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct snd_mixer_oss_slot *pslot;
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int result = 0, left, right;
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if (mixer == NULL || slot > 30)
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return -EIO;
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pslot = &mixer->slots[slot];
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left = pslot->volume[0];
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right = pslot->volume[1];
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if (pslot->get_volume)
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result = pslot->get_volume(fmixer, pslot, &left, &right);
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if (!pslot->stereo)
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right = left;
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snd_assert(left >= 0 && left <= 100, return -EIO);
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snd_assert(right >= 0 && right <= 100, return -EIO);
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263 |
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if (result >= 0) {
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264 |
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pslot->volume[0] = left;
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pslot->volume[1] = right;
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result = (left & 0xff) | ((right & 0xff) << 8);
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267 |
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}
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268 |
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return result;
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269 |
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}
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270 |
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271 |
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static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
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int slot, int volume)
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273 |
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{
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274 |
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struct snd_mixer_oss *mixer = fmixer->mixer;
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struct snd_mixer_oss_slot *pslot;
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276 |
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int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
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277 |
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278 |
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if (mixer == NULL || slot > 30)
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279 |
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return -EIO;
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280 |
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pslot = &mixer->slots[slot];
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281 |
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if (left > 100)
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282 |
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left = 100;
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283 |
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if (right > 100)
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284 |
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right = 100;
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285 |
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if (!pslot->stereo)
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286 |
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right = left;
|
287 |
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if (pslot->put_volume)
|
288 |
|
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result = pslot->put_volume(fmixer, pslot, left, right);
|
289 |
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if (result < 0)
|
290 |
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return result;
|
291 |
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pslot->volume[0] = left;
|
292 |
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pslot->volume[1] = right;
|
293 |
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return (left & 0xff) | ((right & 0xff) << 8);
|
294 |
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}
|
295 |
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|
296 |
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static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
|
297 |
|
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{
|
298 |
|
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void __user *argp = (void __user *)arg;
|
299 |
|
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int __user *p = argp;
|
300 |
|
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int tmp;
|
301 |
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|
302 |
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snd_assert(fmixer != NULL, return -ENXIO);
|
303 |
|
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if (((cmd >> 8) & 0xff) == 'M') {
|
304 |
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switch (cmd) {
|
305 |
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case SOUND_MIXER_INFO:
|
306 |
|
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return snd_mixer_oss_info(fmixer, argp);
|
307 |
|
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case SOUND_OLD_MIXER_INFO:
|
308 |
|
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return snd_mixer_oss_info_obsolete(fmixer, argp);
|
309 |
|
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case SOUND_MIXER_WRITE_RECSRC:
|
310 |
|
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if (get_user(tmp, p))
|
311 |
|
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return -EFAULT;
|
312 |
|
|
tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
|
313 |
|
|
if (tmp < 0)
|
314 |
|
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return tmp;
|
315 |
|
|
return put_user(tmp, p);
|
316 |
|
|
case OSS_GETVERSION:
|
317 |
|
|
return put_user(SNDRV_OSS_VERSION, p);
|
318 |
|
|
case OSS_ALSAEMULVER:
|
319 |
|
|
return put_user(1, p);
|
320 |
|
|
case SOUND_MIXER_READ_DEVMASK:
|
321 |
|
|
tmp = snd_mixer_oss_devmask(fmixer);
|
322 |
|
|
if (tmp < 0)
|
323 |
|
|
return tmp;
|
324 |
|
|
return put_user(tmp, p);
|
325 |
|
|
case SOUND_MIXER_READ_STEREODEVS:
|
326 |
|
|
tmp = snd_mixer_oss_stereodevs(fmixer);
|
327 |
|
|
if (tmp < 0)
|
328 |
|
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return tmp;
|
329 |
|
|
return put_user(tmp, p);
|
330 |
|
|
case SOUND_MIXER_READ_RECMASK:
|
331 |
|
|
tmp = snd_mixer_oss_recmask(fmixer);
|
332 |
|
|
if (tmp < 0)
|
333 |
|
|
return tmp;
|
334 |
|
|
return put_user(tmp, p);
|
335 |
|
|
case SOUND_MIXER_READ_CAPS:
|
336 |
|
|
tmp = snd_mixer_oss_caps(fmixer);
|
337 |
|
|
if (tmp < 0)
|
338 |
|
|
return tmp;
|
339 |
|
|
return put_user(tmp, p);
|
340 |
|
|
case SOUND_MIXER_READ_RECSRC:
|
341 |
|
|
tmp = snd_mixer_oss_get_recsrc(fmixer);
|
342 |
|
|
if (tmp < 0)
|
343 |
|
|
return tmp;
|
344 |
|
|
return put_user(tmp, p);
|
345 |
|
|
}
|
346 |
|
|
}
|
347 |
|
|
if (cmd & SIOC_IN) {
|
348 |
|
|
if (get_user(tmp, p))
|
349 |
|
|
return -EFAULT;
|
350 |
|
|
tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
|
351 |
|
|
if (tmp < 0)
|
352 |
|
|
return tmp;
|
353 |
|
|
return put_user(tmp, p);
|
354 |
|
|
} else if (cmd & SIOC_OUT) {
|
355 |
|
|
tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
|
356 |
|
|
if (tmp < 0)
|
357 |
|
|
return tmp;
|
358 |
|
|
return put_user(tmp, p);
|
359 |
|
|
}
|
360 |
|
|
return -ENXIO;
|
361 |
|
|
}
|
362 |
|
|
|
363 |
|
|
static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
364 |
|
|
{
|
365 |
|
|
return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg);
|
366 |
|
|
}
|
367 |
|
|
|
368 |
|
|
int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
|
369 |
|
|
{
|
370 |
|
|
struct snd_mixer_oss_file fmixer;
|
371 |
|
|
|
372 |
|
|
snd_assert(card != NULL, return -ENXIO);
|
373 |
|
|
if (card->mixer_oss == NULL)
|
374 |
|
|
return -ENXIO;
|
375 |
|
|
memset(&fmixer, 0, sizeof(fmixer));
|
376 |
|
|
fmixer.card = card;
|
377 |
|
|
fmixer.mixer = card->mixer_oss;
|
378 |
|
|
return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
|
379 |
|
|
}
|
380 |
|
|
|
381 |
|
|
#ifdef CONFIG_COMPAT
|
382 |
|
|
/* all compatible */
|
383 |
|
|
#define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl
|
384 |
|
|
#else
|
385 |
|
|
#define snd_mixer_oss_ioctl_compat NULL
|
386 |
|
|
#endif
|
387 |
|
|
|
388 |
|
|
/*
|
389 |
|
|
* REGISTRATION PART
|
390 |
|
|
*/
|
391 |
|
|
|
392 |
|
|
static const struct file_operations snd_mixer_oss_f_ops =
|
393 |
|
|
{
|
394 |
|
|
.owner = THIS_MODULE,
|
395 |
|
|
.open = snd_mixer_oss_open,
|
396 |
|
|
.release = snd_mixer_oss_release,
|
397 |
|
|
.unlocked_ioctl = snd_mixer_oss_ioctl,
|
398 |
|
|
.compat_ioctl = snd_mixer_oss_ioctl_compat,
|
399 |
|
|
};
|
400 |
|
|
|
401 |
|
|
/*
|
402 |
|
|
* utilities
|
403 |
|
|
*/
|
404 |
|
|
|
405 |
|
|
static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
|
406 |
|
|
{
|
407 |
|
|
long orange = omax - omin, nrange = nmax - nmin;
|
408 |
|
|
|
409 |
|
|
if (orange == 0)
|
410 |
|
|
return 0;
|
411 |
|
|
return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
/* convert from alsa native to oss values (0-100) */
|
415 |
|
|
static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
|
416 |
|
|
{
|
417 |
|
|
if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
|
418 |
|
|
return *old;
|
419 |
|
|
return snd_mixer_oss_conv(val, min, max, 0, 100);
|
420 |
|
|
}
|
421 |
|
|
|
422 |
|
|
/* convert from oss to alsa native values */
|
423 |
|
|
static long snd_mixer_oss_conv2(long val, long min, long max)
|
424 |
|
|
{
|
425 |
|
|
return snd_mixer_oss_conv(val, 0, 100, min, max);
|
426 |
|
|
}
|
427 |
|
|
|
428 |
|
|
#if 0
|
429 |
|
|
static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
|
430 |
|
|
{
|
431 |
|
|
struct snd_mixer_oss *mixer = card->mixer_oss;
|
432 |
|
|
if (mixer)
|
433 |
|
|
mixer->mask_recsrc |= 1 << slot;
|
434 |
|
|
}
|
435 |
|
|
|
436 |
|
|
static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
|
437 |
|
|
{
|
438 |
|
|
struct snd_mixer_oss *mixer = card->mixer_oss;
|
439 |
|
|
if (mixer && (mixer->mask_recsrc & (1 << slot)))
|
440 |
|
|
return 1;
|
441 |
|
|
return 0;
|
442 |
|
|
}
|
443 |
|
|
#endif
|
444 |
|
|
|
445 |
|
|
#define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
|
446 |
|
|
|
447 |
|
|
#define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
|
448 |
|
|
#define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
|
449 |
|
|
#define SNDRV_MIXER_OSS_ITEM_GROUTE 2
|
450 |
|
|
#define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
|
451 |
|
|
#define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
|
452 |
|
|
#define SNDRV_MIXER_OSS_ITEM_PROUTE 5
|
453 |
|
|
#define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
|
454 |
|
|
#define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
|
455 |
|
|
#define SNDRV_MIXER_OSS_ITEM_CROUTE 8
|
456 |
|
|
#define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
|
457 |
|
|
#define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
|
458 |
|
|
|
459 |
|
|
#define SNDRV_MIXER_OSS_ITEM_COUNT 11
|
460 |
|
|
|
461 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
|
462 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
|
463 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
|
464 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
|
465 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
|
466 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
|
467 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
|
468 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
|
469 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
|
470 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
|
471 |
|
|
#define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
|
472 |
|
|
|
473 |
|
|
struct slot {
|
474 |
|
|
unsigned int signature;
|
475 |
|
|
unsigned int present;
|
476 |
|
|
unsigned int channels;
|
477 |
|
|
unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
|
478 |
|
|
unsigned int capture_item;
|
479 |
|
|
struct snd_mixer_oss_assign_table *assigned;
|
480 |
|
|
unsigned int allocated: 1;
|
481 |
|
|
};
|
482 |
|
|
|
483 |
|
|
#define ID_UNKNOWN ((unsigned int)-1)
|
484 |
|
|
|
485 |
|
|
static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
|
486 |
|
|
{
|
487 |
|
|
struct snd_card *card = mixer->card;
|
488 |
|
|
struct snd_ctl_elem_id id;
|
489 |
|
|
|
490 |
|
|
memset(&id, 0, sizeof(id));
|
491 |
|
|
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
|
492 |
|
|
strcpy(id.name, name);
|
493 |
|
|
id.index = index;
|
494 |
|
|
return snd_ctl_find_id(card, &id);
|
495 |
|
|
}
|
496 |
|
|
|
497 |
|
|
static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
|
498 |
|
|
struct snd_mixer_oss_slot *pslot,
|
499 |
|
|
unsigned int numid,
|
500 |
|
|
int *left, int *right)
|
501 |
|
|
{
|
502 |
|
|
struct snd_ctl_elem_info *uinfo;
|
503 |
|
|
struct snd_ctl_elem_value *uctl;
|
504 |
|
|
struct snd_kcontrol *kctl;
|
505 |
|
|
struct snd_card *card = fmixer->card;
|
506 |
|
|
|
507 |
|
|
if (numid == ID_UNKNOWN)
|
508 |
|
|
return;
|
509 |
|
|
down_read(&card->controls_rwsem);
|
510 |
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
511 |
|
|
up_read(&card->controls_rwsem);
|
512 |
|
|
return;
|
513 |
|
|
}
|
514 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
515 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
516 |
|
|
if (uinfo == NULL || uctl == NULL)
|
517 |
|
|
goto __unalloc;
|
518 |
|
|
if (kctl->info(kctl, uinfo))
|
519 |
|
|
goto __unalloc;
|
520 |
|
|
if (kctl->get(kctl, uctl))
|
521 |
|
|
goto __unalloc;
|
522 |
|
|
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
|
523 |
|
|
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
|
524 |
|
|
goto __unalloc;
|
525 |
|
|
*left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
|
526 |
|
|
if (uinfo->count > 1)
|
527 |
|
|
*right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
|
528 |
|
|
__unalloc:
|
529 |
|
|
up_read(&card->controls_rwsem);
|
530 |
|
|
kfree(uctl);
|
531 |
|
|
kfree(uinfo);
|
532 |
|
|
}
|
533 |
|
|
|
534 |
|
|
static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
|
535 |
|
|
struct snd_mixer_oss_slot *pslot,
|
536 |
|
|
unsigned int numid,
|
537 |
|
|
int *left, int *right,
|
538 |
|
|
int route)
|
539 |
|
|
{
|
540 |
|
|
struct snd_ctl_elem_info *uinfo;
|
541 |
|
|
struct snd_ctl_elem_value *uctl;
|
542 |
|
|
struct snd_kcontrol *kctl;
|
543 |
|
|
struct snd_card *card = fmixer->card;
|
544 |
|
|
|
545 |
|
|
if (numid == ID_UNKNOWN)
|
546 |
|
|
return;
|
547 |
|
|
down_read(&card->controls_rwsem);
|
548 |
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
549 |
|
|
up_read(&card->controls_rwsem);
|
550 |
|
|
return;
|
551 |
|
|
}
|
552 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
553 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
554 |
|
|
if (uinfo == NULL || uctl == NULL)
|
555 |
|
|
goto __unalloc;
|
556 |
|
|
if (kctl->info(kctl, uinfo))
|
557 |
|
|
goto __unalloc;
|
558 |
|
|
if (kctl->get(kctl, uctl))
|
559 |
|
|
goto __unalloc;
|
560 |
|
|
if (!uctl->value.integer.value[0]) {
|
561 |
|
|
*left = 0;
|
562 |
|
|
if (uinfo->count == 1)
|
563 |
|
|
*right = 0;
|
564 |
|
|
}
|
565 |
|
|
if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
|
566 |
|
|
*right = 0;
|
567 |
|
|
__unalloc:
|
568 |
|
|
up_read(&card->controls_rwsem);
|
569 |
|
|
kfree(uctl);
|
570 |
|
|
kfree(uinfo);
|
571 |
|
|
}
|
572 |
|
|
|
573 |
|
|
static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
|
574 |
|
|
struct snd_mixer_oss_slot *pslot,
|
575 |
|
|
int *left, int *right)
|
576 |
|
|
{
|
577 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
578 |
|
|
|
579 |
|
|
*left = *right = 100;
|
580 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
|
581 |
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
|
582 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
|
583 |
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
|
584 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
|
585 |
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
|
586 |
|
|
}
|
587 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
|
588 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
589 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
|
590 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
591 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
|
592 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
593 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
|
594 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
595 |
|
|
}
|
596 |
|
|
return 0;
|
597 |
|
|
}
|
598 |
|
|
|
599 |
|
|
static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
|
600 |
|
|
struct snd_mixer_oss_slot *pslot,
|
601 |
|
|
unsigned int numid,
|
602 |
|
|
int left, int right)
|
603 |
|
|
{
|
604 |
|
|
struct snd_ctl_elem_info *uinfo;
|
605 |
|
|
struct snd_ctl_elem_value *uctl;
|
606 |
|
|
struct snd_kcontrol *kctl;
|
607 |
|
|
struct snd_card *card = fmixer->card;
|
608 |
|
|
int res;
|
609 |
|
|
|
610 |
|
|
if (numid == ID_UNKNOWN)
|
611 |
|
|
return;
|
612 |
|
|
down_read(&card->controls_rwsem);
|
613 |
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
|
614 |
|
|
return;
|
615 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
616 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
617 |
|
|
if (uinfo == NULL || uctl == NULL)
|
618 |
|
|
goto __unalloc;
|
619 |
|
|
if (kctl->info(kctl, uinfo))
|
620 |
|
|
goto __unalloc;
|
621 |
|
|
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
|
622 |
|
|
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
|
623 |
|
|
goto __unalloc;
|
624 |
|
|
uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
|
625 |
|
|
if (uinfo->count > 1)
|
626 |
|
|
uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
|
627 |
|
|
if ((res = kctl->put(kctl, uctl)) < 0)
|
628 |
|
|
goto __unalloc;
|
629 |
|
|
if (res > 0)
|
630 |
|
|
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
631 |
|
|
__unalloc:
|
632 |
|
|
up_read(&card->controls_rwsem);
|
633 |
|
|
kfree(uctl);
|
634 |
|
|
kfree(uinfo);
|
635 |
|
|
}
|
636 |
|
|
|
637 |
|
|
static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
|
638 |
|
|
struct snd_mixer_oss_slot *pslot,
|
639 |
|
|
unsigned int numid,
|
640 |
|
|
int left, int right,
|
641 |
|
|
int route)
|
642 |
|
|
{
|
643 |
|
|
struct snd_ctl_elem_info *uinfo;
|
644 |
|
|
struct snd_ctl_elem_value *uctl;
|
645 |
|
|
struct snd_kcontrol *kctl;
|
646 |
|
|
struct snd_card *card = fmixer->card;
|
647 |
|
|
int res;
|
648 |
|
|
|
649 |
|
|
if (numid == ID_UNKNOWN)
|
650 |
|
|
return;
|
651 |
|
|
down_read(&card->controls_rwsem);
|
652 |
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
653 |
|
|
up_read(&fmixer->card->controls_rwsem);
|
654 |
|
|
return;
|
655 |
|
|
}
|
656 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
657 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
658 |
|
|
if (uinfo == NULL || uctl == NULL)
|
659 |
|
|
goto __unalloc;
|
660 |
|
|
if (kctl->info(kctl, uinfo))
|
661 |
|
|
goto __unalloc;
|
662 |
|
|
if (uinfo->count > 1) {
|
663 |
|
|
uctl->value.integer.value[0] = left > 0 ? 1 : 0;
|
664 |
|
|
uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
|
665 |
|
|
if (route) {
|
666 |
|
|
uctl->value.integer.value[1] =
|
667 |
|
|
uctl->value.integer.value[2] = 0;
|
668 |
|
|
}
|
669 |
|
|
} else {
|
670 |
|
|
uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
|
671 |
|
|
}
|
672 |
|
|
if ((res = kctl->put(kctl, uctl)) < 0)
|
673 |
|
|
goto __unalloc;
|
674 |
|
|
if (res > 0)
|
675 |
|
|
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
676 |
|
|
__unalloc:
|
677 |
|
|
up_read(&card->controls_rwsem);
|
678 |
|
|
kfree(uctl);
|
679 |
|
|
kfree(uinfo);
|
680 |
|
|
}
|
681 |
|
|
|
682 |
|
|
static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
|
683 |
|
|
struct snd_mixer_oss_slot *pslot,
|
684 |
|
|
int left, int right)
|
685 |
|
|
{
|
686 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
687 |
|
|
|
688 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
|
689 |
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
|
690 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
|
691 |
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
|
692 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
|
693 |
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
|
694 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
|
695 |
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
|
696 |
|
|
}
|
697 |
|
|
if (left || right) {
|
698 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
|
699 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
700 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
|
701 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
702 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
|
703 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
704 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
|
705 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
706 |
|
|
} else {
|
707 |
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
|
708 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
709 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
|
710 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
711 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
|
712 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
713 |
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
|
714 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
715 |
|
|
}
|
716 |
|
|
}
|
717 |
|
|
return 0;
|
718 |
|
|
}
|
719 |
|
|
|
720 |
|
|
static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
|
721 |
|
|
struct snd_mixer_oss_slot *pslot,
|
722 |
|
|
int *active)
|
723 |
|
|
{
|
724 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
725 |
|
|
int left, right;
|
726 |
|
|
|
727 |
|
|
left = right = 1;
|
728 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
|
729 |
|
|
*active = (left || right) ? 1 : 0;
|
730 |
|
|
return 0;
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
|
734 |
|
|
struct snd_mixer_oss_slot *pslot,
|
735 |
|
|
int *active)
|
736 |
|
|
{
|
737 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
738 |
|
|
int left, right;
|
739 |
|
|
|
740 |
|
|
left = right = 1;
|
741 |
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
|
742 |
|
|
*active = (left || right) ? 1 : 0;
|
743 |
|
|
return 0;
|
744 |
|
|
}
|
745 |
|
|
|
746 |
|
|
static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
|
747 |
|
|
struct snd_mixer_oss_slot *pslot,
|
748 |
|
|
int active)
|
749 |
|
|
{
|
750 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
751 |
|
|
|
752 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
|
753 |
|
|
return 0;
|
754 |
|
|
}
|
755 |
|
|
|
756 |
|
|
static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
|
757 |
|
|
struct snd_mixer_oss_slot *pslot,
|
758 |
|
|
int active)
|
759 |
|
|
{
|
760 |
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
761 |
|
|
|
762 |
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
|
763 |
|
|
return 0;
|
764 |
|
|
}
|
765 |
|
|
|
766 |
|
|
static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
|
767 |
|
|
{
|
768 |
|
|
struct snd_card *card = fmixer->card;
|
769 |
|
|
struct snd_mixer_oss *mixer = fmixer->mixer;
|
770 |
|
|
struct snd_kcontrol *kctl;
|
771 |
|
|
struct snd_mixer_oss_slot *pslot;
|
772 |
|
|
struct slot *slot;
|
773 |
|
|
struct snd_ctl_elem_info *uinfo;
|
774 |
|
|
struct snd_ctl_elem_value *uctl;
|
775 |
|
|
int err, idx;
|
776 |
|
|
|
777 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
778 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
779 |
|
|
if (uinfo == NULL || uctl == NULL) {
|
780 |
|
|
err = -ENOMEM;
|
781 |
|
|
goto __unlock;
|
782 |
|
|
}
|
783 |
|
|
down_read(&card->controls_rwsem);
|
784 |
|
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
|
785 |
|
|
if (! kctl) {
|
786 |
|
|
err = -ENOENT;
|
787 |
|
|
goto __unlock;
|
788 |
|
|
}
|
789 |
|
|
if ((err = kctl->info(kctl, uinfo)) < 0)
|
790 |
|
|
goto __unlock;
|
791 |
|
|
if ((err = kctl->get(kctl, uctl)) < 0)
|
792 |
|
|
goto __unlock;
|
793 |
|
|
for (idx = 0; idx < 32; idx++) {
|
794 |
|
|
if (!(mixer->mask_recsrc & (1 << idx)))
|
795 |
|
|
continue;
|
796 |
|
|
pslot = &mixer->slots[idx];
|
797 |
|
|
slot = (struct slot *)pslot->private_data;
|
798 |
|
|
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
|
799 |
|
|
continue;
|
800 |
|
|
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
|
801 |
|
|
continue;
|
802 |
|
|
if (slot->capture_item == uctl->value.enumerated.item[0]) {
|
803 |
|
|
*active_index = idx;
|
804 |
|
|
break;
|
805 |
|
|
}
|
806 |
|
|
}
|
807 |
|
|
err = 0;
|
808 |
|
|
__unlock:
|
809 |
|
|
up_read(&card->controls_rwsem);
|
810 |
|
|
kfree(uctl);
|
811 |
|
|
kfree(uinfo);
|
812 |
|
|
return err;
|
813 |
|
|
}
|
814 |
|
|
|
815 |
|
|
static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
|
816 |
|
|
{
|
817 |
|
|
struct snd_card *card = fmixer->card;
|
818 |
|
|
struct snd_mixer_oss *mixer = fmixer->mixer;
|
819 |
|
|
struct snd_kcontrol *kctl;
|
820 |
|
|
struct snd_mixer_oss_slot *pslot;
|
821 |
|
|
struct slot *slot = NULL;
|
822 |
|
|
struct snd_ctl_elem_info *uinfo;
|
823 |
|
|
struct snd_ctl_elem_value *uctl;
|
824 |
|
|
int err;
|
825 |
|
|
unsigned int idx;
|
826 |
|
|
|
827 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
828 |
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
829 |
|
|
if (uinfo == NULL || uctl == NULL) {
|
830 |
|
|
err = -ENOMEM;
|
831 |
|
|
goto __unlock;
|
832 |
|
|
}
|
833 |
|
|
down_read(&card->controls_rwsem);
|
834 |
|
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
|
835 |
|
|
if (! kctl) {
|
836 |
|
|
err = -ENOENT;
|
837 |
|
|
goto __unlock;
|
838 |
|
|
}
|
839 |
|
|
if ((err = kctl->info(kctl, uinfo)) < 0)
|
840 |
|
|
goto __unlock;
|
841 |
|
|
for (idx = 0; idx < 32; idx++) {
|
842 |
|
|
if (!(mixer->mask_recsrc & (1 << idx)))
|
843 |
|
|
continue;
|
844 |
|
|
pslot = &mixer->slots[idx];
|
845 |
|
|
slot = (struct slot *)pslot->private_data;
|
846 |
|
|
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
|
847 |
|
|
continue;
|
848 |
|
|
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
|
849 |
|
|
continue;
|
850 |
|
|
if (idx == active_index)
|
851 |
|
|
break;
|
852 |
|
|
slot = NULL;
|
853 |
|
|
}
|
854 |
|
|
if (! slot)
|
855 |
|
|
goto __unlock;
|
856 |
|
|
for (idx = 0; idx < uinfo->count; idx++)
|
857 |
|
|
uctl->value.enumerated.item[idx] = slot->capture_item;
|
858 |
|
|
err = kctl->put(kctl, uctl);
|
859 |
|
|
if (err > 0)
|
860 |
|
|
snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
861 |
|
|
err = 0;
|
862 |
|
|
__unlock:
|
863 |
|
|
up_read(&card->controls_rwsem);
|
864 |
|
|
kfree(uctl);
|
865 |
|
|
kfree(uinfo);
|
866 |
|
|
return err;
|
867 |
|
|
}
|
868 |
|
|
|
869 |
|
|
struct snd_mixer_oss_assign_table {
|
870 |
|
|
int oss_id;
|
871 |
|
|
const char *name;
|
872 |
|
|
int index;
|
873 |
|
|
};
|
874 |
|
|
|
875 |
|
|
static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
|
876 |
|
|
{
|
877 |
|
|
struct snd_ctl_elem_info *info;
|
878 |
|
|
struct snd_kcontrol *kcontrol;
|
879 |
|
|
struct snd_card *card = mixer->card;
|
880 |
|
|
int err;
|
881 |
|
|
|
882 |
|
|
down_read(&card->controls_rwsem);
|
883 |
|
|
kcontrol = snd_mixer_oss_test_id(mixer, name, index);
|
884 |
|
|
if (kcontrol == NULL) {
|
885 |
|
|
up_read(&card->controls_rwsem);
|
886 |
|
|
return 0;
|
887 |
|
|
}
|
888 |
|
|
info = kmalloc(sizeof(*info), GFP_KERNEL);
|
889 |
|
|
if (! info) {
|
890 |
|
|
up_read(&card->controls_rwsem);
|
891 |
|
|
return -ENOMEM;
|
892 |
|
|
}
|
893 |
|
|
if ((err = kcontrol->info(kcontrol, info)) < 0) {
|
894 |
|
|
up_read(&card->controls_rwsem);
|
895 |
|
|
kfree(info);
|
896 |
|
|
return err;
|
897 |
|
|
}
|
898 |
|
|
slot->numid[item] = kcontrol->id.numid;
|
899 |
|
|
up_read(&card->controls_rwsem);
|
900 |
|
|
if (info->count > slot->channels)
|
901 |
|
|
slot->channels = info->count;
|
902 |
|
|
slot->present |= 1 << item;
|
903 |
|
|
kfree(info);
|
904 |
|
|
return 0;
|
905 |
|
|
}
|
906 |
|
|
|
907 |
|
|
static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
|
908 |
|
|
{
|
909 |
|
|
struct slot *p = (struct slot *)chn->private_data;
|
910 |
|
|
if (p) {
|
911 |
|
|
if (p->allocated && p->assigned) {
|
912 |
|
|
kfree(p->assigned->name);
|
913 |
|
|
kfree(p->assigned);
|
914 |
|
|
}
|
915 |
|
|
kfree(p);
|
916 |
|
|
}
|
917 |
|
|
}
|
918 |
|
|
|
919 |
|
|
static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
|
920 |
|
|
{
|
921 |
|
|
int idx = rslot->number; /* remember this */
|
922 |
|
|
if (rslot->private_free)
|
923 |
|
|
rslot->private_free(rslot);
|
924 |
|
|
memset(rslot, 0, sizeof(*rslot));
|
925 |
|
|
rslot->number = idx;
|
926 |
|
|
}
|
927 |
|
|
|
928 |
|
|
/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
|
929 |
|
|
snd_mixer_oss_build_input! */
|
930 |
|
|
static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer,
|
931 |
|
|
struct snd_mixer_oss_assign_table *ptr,
|
932 |
|
|
struct slot *slot)
|
933 |
|
|
{
|
934 |
|
|
char str[64];
|
935 |
|
|
int err;
|
936 |
|
|
|
937 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index,
|
938 |
|
|
SNDRV_MIXER_OSS_ITEM_GLOBAL);
|
939 |
|
|
if (err)
|
940 |
|
|
return err;
|
941 |
|
|
sprintf(str, "%s Switch", ptr->name);
|
942 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
943 |
|
|
SNDRV_MIXER_OSS_ITEM_GSWITCH);
|
944 |
|
|
if (err)
|
945 |
|
|
return err;
|
946 |
|
|
sprintf(str, "%s Route", ptr->name);
|
947 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
948 |
|
|
SNDRV_MIXER_OSS_ITEM_GROUTE);
|
949 |
|
|
if (err)
|
950 |
|
|
return err;
|
951 |
|
|
sprintf(str, "%s Volume", ptr->name);
|
952 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
953 |
|
|
SNDRV_MIXER_OSS_ITEM_GVOLUME);
|
954 |
|
|
if (err)
|
955 |
|
|
return err;
|
956 |
|
|
sprintf(str, "%s Playback Switch", ptr->name);
|
957 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
958 |
|
|
SNDRV_MIXER_OSS_ITEM_PSWITCH);
|
959 |
|
|
if (err)
|
960 |
|
|
return err;
|
961 |
|
|
sprintf(str, "%s Playback Route", ptr->name);
|
962 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
963 |
|
|
SNDRV_MIXER_OSS_ITEM_PROUTE);
|
964 |
|
|
if (err)
|
965 |
|
|
return err;
|
966 |
|
|
sprintf(str, "%s Playback Volume", ptr->name);
|
967 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
968 |
|
|
SNDRV_MIXER_OSS_ITEM_PVOLUME);
|
969 |
|
|
if (err)
|
970 |
|
|
return err;
|
971 |
|
|
sprintf(str, "%s Capture Switch", ptr->name);
|
972 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
973 |
|
|
SNDRV_MIXER_OSS_ITEM_CSWITCH);
|
974 |
|
|
if (err)
|
975 |
|
|
return err;
|
976 |
|
|
sprintf(str, "%s Capture Route", ptr->name);
|
977 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
978 |
|
|
SNDRV_MIXER_OSS_ITEM_CROUTE);
|
979 |
|
|
if (err)
|
980 |
|
|
return err;
|
981 |
|
|
sprintf(str, "%s Capture Volume", ptr->name);
|
982 |
|
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
|
983 |
|
|
SNDRV_MIXER_OSS_ITEM_CVOLUME);
|
984 |
|
|
if (err)
|
985 |
|
|
return err;
|
986 |
|
|
|
987 |
|
|
return 0;
|
988 |
|
|
}
|
989 |
|
|
|
990 |
|
|
/*
|
991 |
|
|
* build an OSS mixer element.
|
992 |
|
|
* ptr_allocated means the entry is dynamically allocated (change via proc file).
|
993 |
|
|
* when replace_old = 1, the old entry is replaced with the new one.
|
994 |
|
|
*/
|
995 |
|
|
static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old)
|
996 |
|
|
{
|
997 |
|
|
struct slot slot;
|
998 |
|
|
struct slot *pslot;
|
999 |
|
|
struct snd_kcontrol *kctl;
|
1000 |
|
|
struct snd_mixer_oss_slot *rslot;
|
1001 |
|
|
char str[64];
|
1002 |
|
|
|
1003 |
|
|
/* check if already assigned */
|
1004 |
|
|
if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
|
1005 |
|
|
return 0;
|
1006 |
|
|
|
1007 |
|
|
memset(&slot, 0, sizeof(slot));
|
1008 |
|
|
memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
|
1009 |
|
|
if (snd_mixer_oss_build_test_all(mixer, ptr, &slot))
|
1010 |
|
|
return 0;
|
1011 |
|
|
down_read(&mixer->card->controls_rwsem);
|
1012 |
|
|
if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
|
1013 |
|
|
struct snd_ctl_elem_info *uinfo;
|
1014 |
|
|
|
1015 |
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
1016 |
|
|
if (! uinfo) {
|
1017 |
|
|
up_read(&mixer->card->controls_rwsem);
|
1018 |
|
|
return -ENOMEM;
|
1019 |
|
|
}
|
1020 |
|
|
|
1021 |
|
|
if (kctl->info(kctl, uinfo)) {
|
1022 |
|
|
up_read(&mixer->card->controls_rwsem);
|
1023 |
|
|
return 0;
|
1024 |
|
|
}
|
1025 |
|
|
strcpy(str, ptr->name);
|
1026 |
|
|
if (!strcmp(str, "Master"))
|
1027 |
|
|
strcpy(str, "Mix");
|
1028 |
|
|
if (!strcmp(str, "Master Mono"))
|
1029 |
|
|
strcpy(str, "Mix Mono");
|
1030 |
|
|
slot.capture_item = 0;
|
1031 |
|
|
if (!strcmp(uinfo->value.enumerated.name, str)) {
|
1032 |
|
|
slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
|
1033 |
|
|
} else {
|
1034 |
|
|
for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
|
1035 |
|
|
uinfo->value.enumerated.item = slot.capture_item;
|
1036 |
|
|
if (kctl->info(kctl, uinfo)) {
|
1037 |
|
|
up_read(&mixer->card->controls_rwsem);
|
1038 |
|
|
return 0;
|
1039 |
|
|
}
|
1040 |
|
|
if (!strcmp(uinfo->value.enumerated.name, str)) {
|
1041 |
|
|
slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
|
1042 |
|
|
break;
|
1043 |
|
|
}
|
1044 |
|
|
}
|
1045 |
|
|
}
|
1046 |
|
|
kfree(uinfo);
|
1047 |
|
|
}
|
1048 |
|
|
up_read(&mixer->card->controls_rwsem);
|
1049 |
|
|
if (slot.present != 0) {
|
1050 |
|
|
pslot = kmalloc(sizeof(slot), GFP_KERNEL);
|
1051 |
|
|
if (! pslot)
|
1052 |
|
|
return -ENOMEM;
|
1053 |
|
|
*pslot = slot;
|
1054 |
|
|
pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
|
1055 |
|
|
pslot->assigned = ptr;
|
1056 |
|
|
pslot->allocated = ptr_allocated;
|
1057 |
|
|
rslot = &mixer->slots[ptr->oss_id];
|
1058 |
|
|
mixer_slot_clear(rslot);
|
1059 |
|
|
rslot->stereo = slot.channels > 1 ? 1 : 0;
|
1060 |
|
|
rslot->get_volume = snd_mixer_oss_get_volume1;
|
1061 |
|
|
rslot->put_volume = snd_mixer_oss_put_volume1;
|
1062 |
|
|
/* note: ES18xx have both Capture Source and XX Capture Volume !!! */
|
1063 |
|
|
if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
|
1064 |
|
|
rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
|
1065 |
|
|
rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
|
1066 |
|
|
} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
|
1067 |
|
|
rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
|
1068 |
|
|
rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
|
1069 |
|
|
} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
|
1070 |
|
|
mixer->mask_recsrc |= 1 << ptr->oss_id;
|
1071 |
|
|
}
|
1072 |
|
|
rslot->private_data = pslot;
|
1073 |
|
|
rslot->private_free = snd_mixer_oss_slot_free;
|
1074 |
|
|
return 1;
|
1075 |
|
|
}
|
1076 |
|
|
return 0;
|
1077 |
|
|
}
|
1078 |
|
|
|
1079 |
|
|
#ifdef CONFIG_PROC_FS
|
1080 |
|
|
/*
|
1081 |
|
|
*/
|
1082 |
|
|
#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
|
1083 |
|
|
static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
|
1084 |
|
|
MIXER_VOL(VOLUME),
|
1085 |
|
|
MIXER_VOL(BASS),
|
1086 |
|
|
MIXER_VOL(TREBLE),
|
1087 |
|
|
MIXER_VOL(SYNTH),
|
1088 |
|
|
MIXER_VOL(PCM),
|
1089 |
|
|
MIXER_VOL(SPEAKER),
|
1090 |
|
|
MIXER_VOL(LINE),
|
1091 |
|
|
MIXER_VOL(MIC),
|
1092 |
|
|
MIXER_VOL(CD),
|
1093 |
|
|
MIXER_VOL(IMIX),
|
1094 |
|
|
MIXER_VOL(ALTPCM),
|
1095 |
|
|
MIXER_VOL(RECLEV),
|
1096 |
|
|
MIXER_VOL(IGAIN),
|
1097 |
|
|
MIXER_VOL(OGAIN),
|
1098 |
|
|
MIXER_VOL(LINE1),
|
1099 |
|
|
MIXER_VOL(LINE2),
|
1100 |
|
|
MIXER_VOL(LINE3),
|
1101 |
|
|
MIXER_VOL(DIGITAL1),
|
1102 |
|
|
MIXER_VOL(DIGITAL2),
|
1103 |
|
|
MIXER_VOL(DIGITAL3),
|
1104 |
|
|
MIXER_VOL(PHONEIN),
|
1105 |
|
|
MIXER_VOL(PHONEOUT),
|
1106 |
|
|
MIXER_VOL(VIDEO),
|
1107 |
|
|
MIXER_VOL(RADIO),
|
1108 |
|
|
MIXER_VOL(MONITOR),
|
1109 |
|
|
};
|
1110 |
|
|
|
1111 |
|
|
/*
|
1112 |
|
|
* /proc interface
|
1113 |
|
|
*/
|
1114 |
|
|
|
1115 |
|
|
static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
|
1116 |
|
|
struct snd_info_buffer *buffer)
|
1117 |
|
|
{
|
1118 |
|
|
struct snd_mixer_oss *mixer = entry->private_data;
|
1119 |
|
|
int i;
|
1120 |
|
|
|
1121 |
|
|
mutex_lock(&mixer->reg_mutex);
|
1122 |
|
|
for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
|
1123 |
|
|
struct slot *p;
|
1124 |
|
|
|
1125 |
|
|
if (! oss_mixer_names[i])
|
1126 |
|
|
continue;
|
1127 |
|
|
p = (struct slot *)mixer->slots[i].private_data;
|
1128 |
|
|
snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
|
1129 |
|
|
if (p && p->assigned)
|
1130 |
|
|
snd_iprintf(buffer, "\"%s\" %d\n",
|
1131 |
|
|
p->assigned->name,
|
1132 |
|
|
p->assigned->index);
|
1133 |
|
|
else
|
1134 |
|
|
snd_iprintf(buffer, "\"\" 0\n");
|
1135 |
|
|
}
|
1136 |
|
|
mutex_unlock(&mixer->reg_mutex);
|
1137 |
|
|
}
|
1138 |
|
|
|
1139 |
|
|
static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
|
1140 |
|
|
struct snd_info_buffer *buffer)
|
1141 |
|
|
{
|
1142 |
|
|
struct snd_mixer_oss *mixer = entry->private_data;
|
1143 |
|
|
char line[128], str[32], idxstr[16], *cptr;
|
1144 |
|
|
int ch, idx;
|
1145 |
|
|
struct snd_mixer_oss_assign_table *tbl;
|
1146 |
|
|
struct slot *slot;
|
1147 |
|
|
|
1148 |
|
|
while (!snd_info_get_line(buffer, line, sizeof(line))) {
|
1149 |
|
|
cptr = snd_info_get_str(str, line, sizeof(str));
|
1150 |
|
|
for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
|
1151 |
|
|
if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
|
1152 |
|
|
break;
|
1153 |
|
|
if (ch >= SNDRV_OSS_MAX_MIXERS) {
|
1154 |
|
|
snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
|
1155 |
|
|
continue;
|
1156 |
|
|
}
|
1157 |
|
|
cptr = snd_info_get_str(str, cptr, sizeof(str));
|
1158 |
|
|
if (! *str) {
|
1159 |
|
|
/* remove the entry */
|
1160 |
|
|
mutex_lock(&mixer->reg_mutex);
|
1161 |
|
|
mixer_slot_clear(&mixer->slots[ch]);
|
1162 |
|
|
mutex_unlock(&mixer->reg_mutex);
|
1163 |
|
|
continue;
|
1164 |
|
|
}
|
1165 |
|
|
snd_info_get_str(idxstr, cptr, sizeof(idxstr));
|
1166 |
|
|
idx = simple_strtoul(idxstr, NULL, 10);
|
1167 |
|
|
if (idx >= 0x4000) { /* too big */
|
1168 |
|
|
snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
|
1169 |
|
|
continue;
|
1170 |
|
|
}
|
1171 |
|
|
mutex_lock(&mixer->reg_mutex);
|
1172 |
|
|
slot = (struct slot *)mixer->slots[ch].private_data;
|
1173 |
|
|
if (slot && slot->assigned &&
|
1174 |
|
|
slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
|
1175 |
|
|
/* not changed */
|
1176 |
|
|
goto __unlock;
|
1177 |
|
|
tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
|
1178 |
|
|
if (! tbl) {
|
1179 |
|
|
snd_printk(KERN_ERR "mixer_oss: no memory\n");
|
1180 |
|
|
goto __unlock;
|
1181 |
|
|
}
|
1182 |
|
|
tbl->oss_id = ch;
|
1183 |
|
|
tbl->name = kstrdup(str, GFP_KERNEL);
|
1184 |
|
|
if (! tbl->name) {
|
1185 |
|
|
kfree(tbl);
|
1186 |
|
|
goto __unlock;
|
1187 |
|
|
}
|
1188 |
|
|
tbl->index = idx;
|
1189 |
|
|
if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
|
1190 |
|
|
kfree(tbl->name);
|
1191 |
|
|
kfree(tbl);
|
1192 |
|
|
}
|
1193 |
|
|
__unlock:
|
1194 |
|
|
mutex_unlock(&mixer->reg_mutex);
|
1195 |
|
|
}
|
1196 |
|
|
}
|
1197 |
|
|
|
1198 |
|
|
static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
|
1199 |
|
|
{
|
1200 |
|
|
struct snd_info_entry *entry;
|
1201 |
|
|
|
1202 |
|
|
entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
|
1203 |
|
|
mixer->card->proc_root);
|
1204 |
|
|
if (! entry)
|
1205 |
|
|
return;
|
1206 |
|
|
entry->content = SNDRV_INFO_CONTENT_TEXT;
|
1207 |
|
|
entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
|
1208 |
|
|
entry->c.text.read = snd_mixer_oss_proc_read;
|
1209 |
|
|
entry->c.text.write = snd_mixer_oss_proc_write;
|
1210 |
|
|
entry->private_data = mixer;
|
1211 |
|
|
if (snd_info_register(entry) < 0) {
|
1212 |
|
|
snd_info_free_entry(entry);
|
1213 |
|
|
entry = NULL;
|
1214 |
|
|
}
|
1215 |
|
|
mixer->proc_entry = entry;
|
1216 |
|
|
}
|
1217 |
|
|
|
1218 |
|
|
static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
|
1219 |
|
|
{
|
1220 |
|
|
snd_info_free_entry(mixer->proc_entry);
|
1221 |
|
|
mixer->proc_entry = NULL;
|
1222 |
|
|
}
|
1223 |
|
|
#else /* !CONFIG_PROC_FS */
|
1224 |
|
|
#define snd_mixer_oss_proc_init(mix)
|
1225 |
|
|
#define snd_mixer_oss_proc_done(mix)
|
1226 |
|
|
#endif /* CONFIG_PROC_FS */
|
1227 |
|
|
|
1228 |
|
|
static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
|
1229 |
|
|
{
|
1230 |
|
|
static struct snd_mixer_oss_assign_table table[] = {
|
1231 |
|
|
{ SOUND_MIXER_VOLUME, "Master", 0 },
|
1232 |
|
|
{ SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
|
1233 |
|
|
{ SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
|
1234 |
|
|
{ SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
|
1235 |
|
|
{ SOUND_MIXER_SYNTH, "Synth", 0 },
|
1236 |
|
|
{ SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
|
1237 |
|
|
{ SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
|
1238 |
|
|
{ SOUND_MIXER_PCM, "PCM", 0 },
|
1239 |
|
|
{ SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
|
1240 |
|
|
{ SOUND_MIXER_LINE, "Line", 0 },
|
1241 |
|
|
{ SOUND_MIXER_MIC, "Mic", 0 },
|
1242 |
|
|
{ SOUND_MIXER_CD, "CD", 0 },
|
1243 |
|
|
{ SOUND_MIXER_IMIX, "Monitor Mix", 0 },
|
1244 |
|
|
{ SOUND_MIXER_ALTPCM, "PCM", 1 },
|
1245 |
|
|
{ SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
|
1246 |
|
|
{ SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
|
1247 |
|
|
{ SOUND_MIXER_RECLEV, "-- nothing --", 0 },
|
1248 |
|
|
{ SOUND_MIXER_IGAIN, "Capture", 0 },
|
1249 |
|
|
{ SOUND_MIXER_OGAIN, "Playback", 0 },
|
1250 |
|
|
{ SOUND_MIXER_LINE1, "Aux", 0 },
|
1251 |
|
|
{ SOUND_MIXER_LINE2, "Aux", 1 },
|
1252 |
|
|
{ SOUND_MIXER_LINE3, "Aux", 2 },
|
1253 |
|
|
{ SOUND_MIXER_DIGITAL1, "Digital", 0 },
|
1254 |
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
|
1255 |
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
|
1256 |
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
|
1257 |
|
|
{ SOUND_MIXER_DIGITAL2, "Digital", 1 },
|
1258 |
|
|
{ SOUND_MIXER_DIGITAL3, "Digital", 2 },
|
1259 |
|
|
{ SOUND_MIXER_PHONEIN, "Phone", 0 },
|
1260 |
|
|
{ SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
|
1261 |
|
|
{ SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
|
1262 |
|
|
{ SOUND_MIXER_VIDEO, "Video", 0 },
|
1263 |
|
|
{ SOUND_MIXER_RADIO, "Radio", 0 },
|
1264 |
|
|
{ SOUND_MIXER_MONITOR, "Monitor", 0 }
|
1265 |
|
|
};
|
1266 |
|
|
unsigned int idx;
|
1267 |
|
|
|
1268 |
|
|
for (idx = 0; idx < ARRAY_SIZE(table); idx++)
|
1269 |
|
|
snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
|
1270 |
|
|
if (mixer->mask_recsrc) {
|
1271 |
|
|
mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
|
1272 |
|
|
mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
|
1273 |
|
|
}
|
1274 |
|
|
}
|
1275 |
|
|
|
1276 |
|
|
/*
|
1277 |
|
|
*
|
1278 |
|
|
*/
|
1279 |
|
|
|
1280 |
|
|
static int snd_mixer_oss_free1(void *private)
|
1281 |
|
|
{
|
1282 |
|
|
struct snd_mixer_oss *mixer = private;
|
1283 |
|
|
struct snd_card *card;
|
1284 |
|
|
int idx;
|
1285 |
|
|
|
1286 |
|
|
snd_assert(mixer != NULL, return -ENXIO);
|
1287 |
|
|
card = mixer->card;
|
1288 |
|
|
snd_assert(mixer == card->mixer_oss, return -ENXIO);
|
1289 |
|
|
card->mixer_oss = NULL;
|
1290 |
|
|
for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
|
1291 |
|
|
struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
|
1292 |
|
|
if (chn->private_free)
|
1293 |
|
|
chn->private_free(chn);
|
1294 |
|
|
}
|
1295 |
|
|
kfree(mixer);
|
1296 |
|
|
return 0;
|
1297 |
|
|
}
|
1298 |
|
|
|
1299 |
|
|
static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
|
1300 |
|
|
{
|
1301 |
|
|
struct snd_mixer_oss *mixer;
|
1302 |
|
|
|
1303 |
|
|
if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
|
1304 |
|
|
char name[128];
|
1305 |
|
|
int idx, err;
|
1306 |
|
|
|
1307 |
|
|
mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
|
1308 |
|
|
if (mixer == NULL)
|
1309 |
|
|
return -ENOMEM;
|
1310 |
|
|
mutex_init(&mixer->reg_mutex);
|
1311 |
|
|
sprintf(name, "mixer%i%i", card->number, 0);
|
1312 |
|
|
if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
|
1313 |
|
|
card, 0,
|
1314 |
|
|
&snd_mixer_oss_f_ops, card,
|
1315 |
|
|
name)) < 0) {
|
1316 |
|
|
snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
|
1317 |
|
|
card->number, 0);
|
1318 |
|
|
kfree(mixer);
|
1319 |
|
|
return err;
|
1320 |
|
|
}
|
1321 |
|
|
mixer->oss_dev_alloc = 1;
|
1322 |
|
|
mixer->card = card;
|
1323 |
|
|
if (*card->mixername)
|
1324 |
|
|
strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
|
1325 |
|
|
else
|
1326 |
|
|
strlcpy(mixer->name, name, sizeof(mixer->name));
|
1327 |
|
|
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
|
1328 |
|
|
snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
|
1329 |
|
|
card->number,
|
1330 |
|
|
mixer->name);
|
1331 |
|
|
#endif
|
1332 |
|
|
for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
|
1333 |
|
|
mixer->slots[idx].number = idx;
|
1334 |
|
|
card->mixer_oss = mixer;
|
1335 |
|
|
snd_mixer_oss_build(mixer);
|
1336 |
|
|
snd_mixer_oss_proc_init(mixer);
|
1337 |
|
|
} else {
|
1338 |
|
|
mixer = card->mixer_oss;
|
1339 |
|
|
if (mixer == NULL)
|
1340 |
|
|
return 0;
|
1341 |
|
|
if (mixer->oss_dev_alloc) {
|
1342 |
|
|
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
|
1343 |
|
|
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
|
1344 |
|
|
#endif
|
1345 |
|
|
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
|
1346 |
|
|
mixer->oss_dev_alloc = 0;
|
1347 |
|
|
}
|
1348 |
|
|
if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
|
1349 |
|
|
return 0;
|
1350 |
|
|
snd_mixer_oss_proc_done(mixer);
|
1351 |
|
|
return snd_mixer_oss_free1(mixer);
|
1352 |
|
|
}
|
1353 |
|
|
return 0;
|
1354 |
|
|
}
|
1355 |
|
|
|
1356 |
|
|
static int __init alsa_mixer_oss_init(void)
|
1357 |
|
|
{
|
1358 |
|
|
int idx;
|
1359 |
|
|
|
1360 |
|
|
snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
|
1361 |
|
|
for (idx = 0; idx < SNDRV_CARDS; idx++) {
|
1362 |
|
|
if (snd_cards[idx])
|
1363 |
|
|
snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
|
1364 |
|
|
}
|
1365 |
|
|
return 0;
|
1366 |
|
|
}
|
1367 |
|
|
|
1368 |
|
|
static void __exit alsa_mixer_oss_exit(void)
|
1369 |
|
|
{
|
1370 |
|
|
int idx;
|
1371 |
|
|
|
1372 |
|
|
snd_mixer_oss_notify_callback = NULL;
|
1373 |
|
|
for (idx = 0; idx < SNDRV_CARDS; idx++) {
|
1374 |
|
|
if (snd_cards[idx])
|
1375 |
|
|
snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
|
1376 |
|
|
}
|
1377 |
|
|
}
|
1378 |
|
|
|
1379 |
|
|
module_init(alsa_mixer_oss_init)
|
1380 |
|
|
module_exit(alsa_mixer_oss_exit)
|
1381 |
|
|
|
1382 |
|
|
EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
|