1366 строки
39 KiB
C
1366 строки
39 KiB
C
/*
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* OSS emulation layer for the mixer interface
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* Copyright (c) by Jaroslav Kysela <perex@suse.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/smp_lock.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@suse.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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if (result >= 0) {
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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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}
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return result;
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}
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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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{
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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 = volume & 0xff, right = (volume >> 8) & 0xff;
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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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if (left > 100)
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left = 100;
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if (right > 100)
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right = 100;
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if (!pslot->stereo)
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right = left;
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if (pslot->put_volume)
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result = pslot->put_volume(fmixer, pslot, left, right);
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if (result < 0)
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return result;
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pslot->volume[0] = left;
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pslot->volume[1] = right;
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return (left & 0xff) | ((right & 0xff) << 8);
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}
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static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
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{
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void __user *argp = (void __user *)arg;
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int __user *p = argp;
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int tmp;
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snd_assert(fmixer != NULL, return -ENXIO);
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if (((cmd >> 8) & 0xff) == 'M') {
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switch (cmd) {
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case SOUND_MIXER_INFO:
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return snd_mixer_oss_info(fmixer, argp);
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case SOUND_OLD_MIXER_INFO:
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return snd_mixer_oss_info_obsolete(fmixer, argp);
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case SOUND_MIXER_WRITE_RECSRC:
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if (get_user(tmp, p))
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return -EFAULT;
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tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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case OSS_GETVERSION:
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return put_user(SNDRV_OSS_VERSION, p);
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case OSS_ALSAEMULVER:
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return put_user(1, p);
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case SOUND_MIXER_READ_DEVMASK:
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tmp = snd_mixer_oss_devmask(fmixer);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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case SOUND_MIXER_READ_STEREODEVS:
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tmp = snd_mixer_oss_stereodevs(fmixer);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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case SOUND_MIXER_READ_RECMASK:
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tmp = snd_mixer_oss_recmask(fmixer);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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case SOUND_MIXER_READ_CAPS:
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tmp = snd_mixer_oss_caps(fmixer);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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case SOUND_MIXER_READ_RECSRC:
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tmp = snd_mixer_oss_get_recsrc(fmixer);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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}
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}
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if (cmd & SIOC_IN) {
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if (get_user(tmp, p))
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return -EFAULT;
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tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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} else if (cmd & SIOC_OUT) {
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tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
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if (tmp < 0)
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return tmp;
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return put_user(tmp, p);
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}
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return -ENXIO;
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}
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static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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{
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return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg);
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}
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int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
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{
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struct snd_mixer_oss_file fmixer;
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snd_assert(card != NULL, return -ENXIO);
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if (card->mixer_oss == NULL)
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return -ENXIO;
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memset(&fmixer, 0, sizeof(fmixer));
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fmixer.card = card;
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fmixer.mixer = card->mixer_oss;
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return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
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}
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#ifdef CONFIG_COMPAT
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/* all compatible */
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#define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl
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#else
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#define snd_mixer_oss_ioctl_compat NULL
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#endif
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/*
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* REGISTRATION PART
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*/
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static struct file_operations snd_mixer_oss_f_ops =
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{
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.owner = THIS_MODULE,
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.open = snd_mixer_oss_open,
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.release = snd_mixer_oss_release,
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.unlocked_ioctl = snd_mixer_oss_ioctl,
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.compat_ioctl = snd_mixer_oss_ioctl_compat,
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};
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/*
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* utilities
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*/
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static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
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{
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long orange = omax - omin, nrange = nmax - nmin;
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if (orange == 0)
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return 0;
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return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
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}
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/* convert from alsa native to oss values (0-100) */
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static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
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{
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if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
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return *old;
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return snd_mixer_oss_conv(val, min, max, 0, 100);
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}
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/* convert from oss to alsa native values */
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static long snd_mixer_oss_conv2(long val, long min, long max)
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{
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return snd_mixer_oss_conv(val, 0, 100, min, max);
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}
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#if 0
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static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
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{
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struct snd_mixer_oss *mixer = card->mixer_oss;
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if (mixer)
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mixer->mask_recsrc |= 1 << slot;
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}
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static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
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{
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struct snd_mixer_oss *mixer = card->mixer_oss;
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if (mixer && (mixer->mask_recsrc & (1 << slot)))
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return 1;
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return 0;
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}
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#endif
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#define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
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#define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
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#define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
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#define SNDRV_MIXER_OSS_ITEM_GROUTE 2
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#define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
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#define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
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#define SNDRV_MIXER_OSS_ITEM_PROUTE 5
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#define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
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#define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
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#define SNDRV_MIXER_OSS_ITEM_CROUTE 8
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#define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
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#define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
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#define SNDRV_MIXER_OSS_ITEM_COUNT 11
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#define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
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#define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
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#define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
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#define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
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#define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
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#define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
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#define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
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#define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
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#define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
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#define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
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#define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
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struct slot {
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unsigned int signature;
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unsigned int present;
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|
unsigned int channels;
|
|
unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
|
|
unsigned int capture_item;
|
|
struct snd_mixer_oss_assign_table *assigned;
|
|
unsigned int allocated: 1;
|
|
};
|
|
|
|
#define ID_UNKNOWN ((unsigned int)-1)
|
|
|
|
static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
|
|
{
|
|
struct snd_card *card = mixer->card;
|
|
struct snd_ctl_elem_id id;
|
|
|
|
memset(&id, 0, sizeof(id));
|
|
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
|
|
strcpy(id.name, name);
|
|
id.index = index;
|
|
return snd_ctl_find_id(card, &id);
|
|
}
|
|
|
|
static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
unsigned int numid,
|
|
int *left, int *right)
|
|
{
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_card *card = fmixer->card;
|
|
|
|
if (numid == ID_UNKNOWN)
|
|
return;
|
|
down_read(&card->controls_rwsem);
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
|
up_read(&card->controls_rwsem);
|
|
return;
|
|
}
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL)
|
|
goto __unalloc;
|
|
if (kctl->info(kctl, uinfo))
|
|
goto __unalloc;
|
|
if (kctl->get(kctl, uctl))
|
|
goto __unalloc;
|
|
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
|
|
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
|
|
goto __unalloc;
|
|
*left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
|
|
if (uinfo->count > 1)
|
|
*right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
|
|
__unalloc:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
}
|
|
|
|
static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
unsigned int numid,
|
|
int *left, int *right,
|
|
int route)
|
|
{
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_card *card = fmixer->card;
|
|
|
|
if (numid == ID_UNKNOWN)
|
|
return;
|
|
down_read(&card->controls_rwsem);
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
|
up_read(&card->controls_rwsem);
|
|
return;
|
|
}
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL)
|
|
goto __unalloc;
|
|
if (kctl->info(kctl, uinfo))
|
|
goto __unalloc;
|
|
if (kctl->get(kctl, uctl))
|
|
goto __unalloc;
|
|
if (!uctl->value.integer.value[0]) {
|
|
*left = 0;
|
|
if (uinfo->count == 1)
|
|
*right = 0;
|
|
}
|
|
if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
|
|
*right = 0;
|
|
__unalloc:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
}
|
|
|
|
static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int *left, int *right)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
|
|
*left = *right = 100;
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
|
|
snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
|
|
}
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
unsigned int numid,
|
|
int left, int right)
|
|
{
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_card *card = fmixer->card;
|
|
int res;
|
|
|
|
if (numid == ID_UNKNOWN)
|
|
return;
|
|
down_read(&card->controls_rwsem);
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
|
|
return;
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL)
|
|
goto __unalloc;
|
|
if (kctl->info(kctl, uinfo))
|
|
goto __unalloc;
|
|
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
|
|
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
|
|
goto __unalloc;
|
|
uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
|
|
if (uinfo->count > 1)
|
|
uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
|
|
if ((res = kctl->put(kctl, uctl)) < 0)
|
|
goto __unalloc;
|
|
if (res > 0)
|
|
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
|
__unalloc:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
}
|
|
|
|
static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
unsigned int numid,
|
|
int left, int right,
|
|
int route)
|
|
{
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_card *card = fmixer->card;
|
|
int res;
|
|
|
|
if (numid == ID_UNKNOWN)
|
|
return;
|
|
down_read(&card->controls_rwsem);
|
|
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
|
|
up_read(&fmixer->card->controls_rwsem);
|
|
return;
|
|
}
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL)
|
|
goto __unalloc;
|
|
if (kctl->info(kctl, uinfo))
|
|
goto __unalloc;
|
|
if (uinfo->count > 1) {
|
|
uctl->value.integer.value[0] = left > 0 ? 1 : 0;
|
|
uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
|
|
if (route) {
|
|
uctl->value.integer.value[1] =
|
|
uctl->value.integer.value[2] = 0;
|
|
}
|
|
} else {
|
|
uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
|
|
}
|
|
if ((res = kctl->put(kctl, uctl)) < 0)
|
|
goto __unalloc;
|
|
if (res > 0)
|
|
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
|
__unalloc:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
}
|
|
|
|
static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int left, int right)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
|
|
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
|
|
}
|
|
if (left || right) {
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
|
} else {
|
|
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
|
|
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int *active)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
int left, right;
|
|
|
|
left = right = 1;
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
|
|
*active = (left || right) ? 1 : 0;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int *active)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
int left, right;
|
|
|
|
left = right = 1;
|
|
snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
|
|
*active = (left || right) ? 1 : 0;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int active)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
|
|
struct snd_mixer_oss_slot *pslot,
|
|
int active)
|
|
{
|
|
struct slot *slot = (struct slot *)pslot->private_data;
|
|
|
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
|
|
{
|
|
struct snd_card *card = fmixer->card;
|
|
struct snd_mixer_oss *mixer = fmixer->mixer;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_mixer_oss_slot *pslot;
|
|
struct slot *slot;
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
int err, idx;
|
|
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL) {
|
|
err = -ENOMEM;
|
|
goto __unlock;
|
|
}
|
|
down_read(&card->controls_rwsem);
|
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
|
|
if (! kctl) {
|
|
err = -ENOENT;
|
|
goto __unlock;
|
|
}
|
|
if ((err = kctl->info(kctl, uinfo)) < 0)
|
|
goto __unlock;
|
|
if ((err = kctl->get(kctl, uctl)) < 0)
|
|
goto __unlock;
|
|
for (idx = 0; idx < 32; idx++) {
|
|
if (!(mixer->mask_recsrc & (1 << idx)))
|
|
continue;
|
|
pslot = &mixer->slots[idx];
|
|
slot = (struct slot *)pslot->private_data;
|
|
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
|
|
continue;
|
|
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
|
|
continue;
|
|
if (slot->capture_item == uctl->value.enumerated.item[0]) {
|
|
*active_index = idx;
|
|
break;
|
|
}
|
|
}
|
|
err = 0;
|
|
__unlock:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
return err;
|
|
}
|
|
|
|
static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
|
|
{
|
|
struct snd_card *card = fmixer->card;
|
|
struct snd_mixer_oss *mixer = fmixer->mixer;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_mixer_oss_slot *pslot;
|
|
struct slot *slot = NULL;
|
|
struct snd_ctl_elem_info *uinfo;
|
|
struct snd_ctl_elem_value *uctl;
|
|
int err;
|
|
unsigned int idx;
|
|
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
|
|
if (uinfo == NULL || uctl == NULL) {
|
|
err = -ENOMEM;
|
|
goto __unlock;
|
|
}
|
|
down_read(&card->controls_rwsem);
|
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
|
|
if (! kctl) {
|
|
err = -ENOENT;
|
|
goto __unlock;
|
|
}
|
|
if ((err = kctl->info(kctl, uinfo)) < 0)
|
|
goto __unlock;
|
|
for (idx = 0; idx < 32; idx++) {
|
|
if (!(mixer->mask_recsrc & (1 << idx)))
|
|
continue;
|
|
pslot = &mixer->slots[idx];
|
|
slot = (struct slot *)pslot->private_data;
|
|
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
|
|
continue;
|
|
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
|
|
continue;
|
|
if (idx == active_index)
|
|
break;
|
|
slot = NULL;
|
|
}
|
|
if (! slot)
|
|
goto __unlock;
|
|
for (idx = 0; idx < uinfo->count; idx++)
|
|
uctl->value.enumerated.item[idx] = slot->capture_item;
|
|
err = kctl->put(kctl, uctl);
|
|
if (err > 0)
|
|
snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
|
|
err = 0;
|
|
__unlock:
|
|
up_read(&card->controls_rwsem);
|
|
kfree(uctl);
|
|
kfree(uinfo);
|
|
return err;
|
|
}
|
|
|
|
struct snd_mixer_oss_assign_table {
|
|
int oss_id;
|
|
const char *name;
|
|
int index;
|
|
};
|
|
|
|
static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
|
|
{
|
|
struct snd_ctl_elem_info *info;
|
|
struct snd_kcontrol *kcontrol;
|
|
struct snd_card *card = mixer->card;
|
|
int err;
|
|
|
|
down_read(&card->controls_rwsem);
|
|
kcontrol = snd_mixer_oss_test_id(mixer, name, index);
|
|
if (kcontrol == NULL) {
|
|
up_read(&card->controls_rwsem);
|
|
return 0;
|
|
}
|
|
info = kmalloc(sizeof(*info), GFP_KERNEL);
|
|
if (! info) {
|
|
up_read(&card->controls_rwsem);
|
|
return -ENOMEM;
|
|
}
|
|
if ((err = kcontrol->info(kcontrol, info)) < 0) {
|
|
up_read(&card->controls_rwsem);
|
|
kfree(info);
|
|
return err;
|
|
}
|
|
slot->numid[item] = kcontrol->id.numid;
|
|
up_read(&card->controls_rwsem);
|
|
if (info->count > slot->channels)
|
|
slot->channels = info->count;
|
|
slot->present |= 1 << item;
|
|
kfree(info);
|
|
return 0;
|
|
}
|
|
|
|
static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
|
|
{
|
|
struct slot *p = (struct slot *)chn->private_data;
|
|
if (p) {
|
|
if (p->allocated && p->assigned) {
|
|
kfree(p->assigned->name);
|
|
kfree(p->assigned);
|
|
}
|
|
kfree(p);
|
|
}
|
|
}
|
|
|
|
static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
|
|
{
|
|
int idx = rslot->number; /* remember this */
|
|
if (rslot->private_free)
|
|
rslot->private_free(rslot);
|
|
memset(rslot, 0, sizeof(*rslot));
|
|
rslot->number = idx;
|
|
}
|
|
|
|
/*
|
|
* build an OSS mixer element.
|
|
* ptr_allocated means the entry is dynamically allocated (change via proc file).
|
|
* when replace_old = 1, the old entry is replaced with the new one.
|
|
*/
|
|
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)
|
|
{
|
|
struct slot slot;
|
|
struct slot *pslot;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_mixer_oss_slot *rslot;
|
|
char str[64];
|
|
|
|
/* check if already assigned */
|
|
if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
|
|
return 0;
|
|
|
|
memset(&slot, 0, sizeof(slot));
|
|
memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
|
|
if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_GLOBAL))
|
|
return 0;
|
|
sprintf(str, "%s Switch", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_GSWITCH))
|
|
return 0;
|
|
sprintf(str, "%s Route", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_GROUTE))
|
|
return 0;
|
|
sprintf(str, "%s Volume", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_GVOLUME))
|
|
return 0;
|
|
sprintf(str, "%s Playback Switch", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_PSWITCH))
|
|
return 0;
|
|
sprintf(str, "%s Playback Route", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_PROUTE))
|
|
return 0;
|
|
sprintf(str, "%s Playback Volume", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_PVOLUME))
|
|
return 0;
|
|
sprintf(str, "%s Capture Switch", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_CSWITCH))
|
|
return 0;
|
|
sprintf(str, "%s Capture Route", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_CROUTE))
|
|
return 0;
|
|
sprintf(str, "%s Capture Volume", ptr->name);
|
|
if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
|
|
SNDRV_MIXER_OSS_ITEM_CVOLUME))
|
|
return 0;
|
|
down_read(&mixer->card->controls_rwsem);
|
|
if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
|
|
struct snd_ctl_elem_info *uinfo;
|
|
|
|
uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
|
|
if (! uinfo) {
|
|
up_read(&mixer->card->controls_rwsem);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(uinfo, 0, sizeof(*uinfo));
|
|
if (kctl->info(kctl, uinfo)) {
|
|
up_read(&mixer->card->controls_rwsem);
|
|
return 0;
|
|
}
|
|
strcpy(str, ptr->name);
|
|
if (!strcmp(str, "Master"))
|
|
strcpy(str, "Mix");
|
|
if (!strcmp(str, "Master Mono"))
|
|
strcpy(str, "Mix Mono");
|
|
slot.capture_item = 0;
|
|
if (!strcmp(uinfo->value.enumerated.name, str)) {
|
|
slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
|
|
} else {
|
|
for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
|
|
uinfo->value.enumerated.item = slot.capture_item;
|
|
if (kctl->info(kctl, uinfo)) {
|
|
up_read(&mixer->card->controls_rwsem);
|
|
return 0;
|
|
}
|
|
if (!strcmp(uinfo->value.enumerated.name, str)) {
|
|
slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
kfree(uinfo);
|
|
}
|
|
up_read(&mixer->card->controls_rwsem);
|
|
if (slot.present != 0) {
|
|
pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
|
|
if (! pslot)
|
|
return -ENOMEM;
|
|
*pslot = slot;
|
|
pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
|
|
pslot->assigned = ptr;
|
|
pslot->allocated = ptr_allocated;
|
|
rslot = &mixer->slots[ptr->oss_id];
|
|
mixer_slot_clear(rslot);
|
|
rslot->stereo = slot.channels > 1 ? 1 : 0;
|
|
rslot->get_volume = snd_mixer_oss_get_volume1;
|
|
rslot->put_volume = snd_mixer_oss_put_volume1;
|
|
/* note: ES18xx have both Capture Source and XX Capture Volume !!! */
|
|
if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
|
|
rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
|
|
rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
|
|
} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
|
|
rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
|
|
rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
|
|
} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
|
|
mixer->mask_recsrc |= 1 << ptr->oss_id;
|
|
}
|
|
rslot->private_data = pslot;
|
|
rslot->private_free = snd_mixer_oss_slot_free;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
/*
|
|
*/
|
|
#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
|
|
static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
|
|
MIXER_VOL(VOLUME),
|
|
MIXER_VOL(BASS),
|
|
MIXER_VOL(TREBLE),
|
|
MIXER_VOL(SYNTH),
|
|
MIXER_VOL(PCM),
|
|
MIXER_VOL(SPEAKER),
|
|
MIXER_VOL(LINE),
|
|
MIXER_VOL(MIC),
|
|
MIXER_VOL(CD),
|
|
MIXER_VOL(IMIX),
|
|
MIXER_VOL(ALTPCM),
|
|
MIXER_VOL(RECLEV),
|
|
MIXER_VOL(IGAIN),
|
|
MIXER_VOL(OGAIN),
|
|
MIXER_VOL(LINE1),
|
|
MIXER_VOL(LINE2),
|
|
MIXER_VOL(LINE3),
|
|
MIXER_VOL(DIGITAL1),
|
|
MIXER_VOL(DIGITAL2),
|
|
MIXER_VOL(DIGITAL3),
|
|
MIXER_VOL(PHONEIN),
|
|
MIXER_VOL(PHONEOUT),
|
|
MIXER_VOL(VIDEO),
|
|
MIXER_VOL(RADIO),
|
|
MIXER_VOL(MONITOR),
|
|
};
|
|
|
|
/*
|
|
* /proc interface
|
|
*/
|
|
|
|
static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
|
|
struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_mixer_oss *mixer = entry->private_data;
|
|
int i;
|
|
|
|
down(&mixer->reg_mutex);
|
|
for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
|
|
struct slot *p;
|
|
|
|
if (! oss_mixer_names[i])
|
|
continue;
|
|
p = (struct slot *)mixer->slots[i].private_data;
|
|
snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
|
|
if (p && p->assigned)
|
|
snd_iprintf(buffer, "\"%s\" %d\n",
|
|
p->assigned->name,
|
|
p->assigned->index);
|
|
else
|
|
snd_iprintf(buffer, "\"\" 0\n");
|
|
}
|
|
up(&mixer->reg_mutex);
|
|
}
|
|
|
|
static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
|
|
struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_mixer_oss *mixer = entry->private_data;
|
|
char line[128], str[32], idxstr[16], *cptr;
|
|
int ch, idx;
|
|
struct snd_mixer_oss_assign_table *tbl;
|
|
struct slot *slot;
|
|
|
|
while (!snd_info_get_line(buffer, line, sizeof(line))) {
|
|
cptr = snd_info_get_str(str, line, sizeof(str));
|
|
for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
|
|
if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
|
|
break;
|
|
if (ch >= SNDRV_OSS_MAX_MIXERS) {
|
|
snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
|
|
continue;
|
|
}
|
|
cptr = snd_info_get_str(str, cptr, sizeof(str));
|
|
if (! *str) {
|
|
/* remove the entry */
|
|
down(&mixer->reg_mutex);
|
|
mixer_slot_clear(&mixer->slots[ch]);
|
|
up(&mixer->reg_mutex);
|
|
continue;
|
|
}
|
|
snd_info_get_str(idxstr, cptr, sizeof(idxstr));
|
|
idx = simple_strtoul(idxstr, NULL, 10);
|
|
if (idx >= 0x4000) { /* too big */
|
|
snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
|
|
continue;
|
|
}
|
|
down(&mixer->reg_mutex);
|
|
slot = (struct slot *)mixer->slots[ch].private_data;
|
|
if (slot && slot->assigned &&
|
|
slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
|
|
/* not changed */
|
|
goto __unlock;
|
|
tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
|
|
if (! tbl) {
|
|
snd_printk(KERN_ERR "mixer_oss: no memory\n");
|
|
goto __unlock;
|
|
}
|
|
tbl->oss_id = ch;
|
|
tbl->name = kstrdup(str, GFP_KERNEL);
|
|
if (! tbl->name) {
|
|
kfree(tbl);
|
|
goto __unlock;
|
|
}
|
|
tbl->index = idx;
|
|
if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
|
|
kfree(tbl->name);
|
|
kfree(tbl);
|
|
}
|
|
__unlock:
|
|
up(&mixer->reg_mutex);
|
|
}
|
|
}
|
|
|
|
static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
|
|
{
|
|
struct snd_info_entry *entry;
|
|
|
|
entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
|
|
mixer->card->proc_root);
|
|
if (! entry)
|
|
return;
|
|
entry->content = SNDRV_INFO_CONTENT_TEXT;
|
|
entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
|
|
entry->c.text.read_size = 8192;
|
|
entry->c.text.read = snd_mixer_oss_proc_read;
|
|
entry->c.text.write_size = 8192;
|
|
entry->c.text.write = snd_mixer_oss_proc_write;
|
|
entry->private_data = mixer;
|
|
if (snd_info_register(entry) < 0) {
|
|
snd_info_free_entry(entry);
|
|
entry = NULL;
|
|
}
|
|
mixer->proc_entry = entry;
|
|
}
|
|
|
|
static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
|
|
{
|
|
if (mixer->proc_entry) {
|
|
snd_info_unregister(mixer->proc_entry);
|
|
mixer->proc_entry = NULL;
|
|
}
|
|
}
|
|
#else /* !CONFIG_PROC_FS */
|
|
#define snd_mixer_oss_proc_init(mix)
|
|
#define snd_mixer_oss_proc_done(mix)
|
|
#endif /* CONFIG_PROC_FS */
|
|
|
|
static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
|
|
{
|
|
static struct snd_mixer_oss_assign_table table[] = {
|
|
{ SOUND_MIXER_VOLUME, "Master", 0 },
|
|
{ SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
|
|
{ SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
|
|
{ SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
|
|
{ SOUND_MIXER_SYNTH, "Synth", 0 },
|
|
{ SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
|
|
{ SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
|
|
{ SOUND_MIXER_PCM, "PCM", 0 },
|
|
{ SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
|
|
{ SOUND_MIXER_LINE, "Line", 0 },
|
|
{ SOUND_MIXER_MIC, "Mic", 0 },
|
|
{ SOUND_MIXER_CD, "CD", 0 },
|
|
{ SOUND_MIXER_IMIX, "Monitor Mix", 0 },
|
|
{ SOUND_MIXER_ALTPCM, "PCM", 1 },
|
|
{ SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
|
|
{ SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
|
|
{ SOUND_MIXER_RECLEV, "-- nothing --", 0 },
|
|
{ SOUND_MIXER_IGAIN, "Capture", 0 },
|
|
{ SOUND_MIXER_OGAIN, "Playback", 0 },
|
|
{ SOUND_MIXER_LINE1, "Aux", 0 },
|
|
{ SOUND_MIXER_LINE2, "Aux", 1 },
|
|
{ SOUND_MIXER_LINE3, "Aux", 2 },
|
|
{ SOUND_MIXER_DIGITAL1, "Digital", 0 },
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
|
|
{ SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
|
|
{ SOUND_MIXER_DIGITAL2, "Digital", 1 },
|
|
{ SOUND_MIXER_DIGITAL3, "Digital", 2 },
|
|
{ SOUND_MIXER_PHONEIN, "Phone", 0 },
|
|
{ SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
|
|
{ SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
|
|
{ SOUND_MIXER_VIDEO, "Video", 0 },
|
|
{ SOUND_MIXER_RADIO, "Radio", 0 },
|
|
{ SOUND_MIXER_MONITOR, "Monitor", 0 }
|
|
};
|
|
unsigned int idx;
|
|
|
|
for (idx = 0; idx < ARRAY_SIZE(table); idx++)
|
|
snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
|
|
if (mixer->mask_recsrc) {
|
|
mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
|
|
mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
|
|
}
|
|
}
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
static int snd_mixer_oss_free1(void *private)
|
|
{
|
|
struct snd_mixer_oss *mixer = private;
|
|
struct snd_card *card;
|
|
int idx;
|
|
|
|
snd_assert(mixer != NULL, return -ENXIO);
|
|
card = mixer->card;
|
|
snd_assert(mixer == card->mixer_oss, return -ENXIO);
|
|
card->mixer_oss = NULL;
|
|
for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
|
|
struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
|
|
if (chn->private_free)
|
|
chn->private_free(chn);
|
|
}
|
|
kfree(mixer);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
|
|
{
|
|
struct snd_mixer_oss *mixer;
|
|
|
|
if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
|
|
char name[128];
|
|
int idx, err;
|
|
|
|
mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
|
|
if (mixer == NULL)
|
|
return -ENOMEM;
|
|
init_MUTEX(&mixer->reg_mutex);
|
|
sprintf(name, "mixer%i%i", card->number, 0);
|
|
if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
|
|
card, 0,
|
|
&snd_mixer_oss_f_ops, card,
|
|
name)) < 0) {
|
|
snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
|
|
card->number, 0);
|
|
kfree(mixer);
|
|
return err;
|
|
}
|
|
mixer->oss_dev_alloc = 1;
|
|
mixer->card = card;
|
|
if (*card->mixername)
|
|
strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
|
|
else
|
|
strlcpy(mixer->name, name, sizeof(mixer->name));
|
|
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
|
|
snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
|
|
card->number,
|
|
mixer->name);
|
|
#endif
|
|
for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
|
|
mixer->slots[idx].number = idx;
|
|
card->mixer_oss = mixer;
|
|
snd_mixer_oss_build(mixer);
|
|
snd_mixer_oss_proc_init(mixer);
|
|
} else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) {
|
|
mixer = card->mixer_oss;
|
|
if (mixer == NULL || !mixer->oss_dev_alloc)
|
|
return 0;
|
|
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
|
|
mixer->oss_dev_alloc = 0;
|
|
} else { /* free */
|
|
mixer = card->mixer_oss;
|
|
if (mixer == NULL)
|
|
return 0;
|
|
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
|
|
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
|
|
#endif
|
|
if (mixer->oss_dev_alloc)
|
|
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
|
|
snd_mixer_oss_proc_done(mixer);
|
|
return snd_mixer_oss_free1(mixer);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int __init alsa_mixer_oss_init(void)
|
|
{
|
|
int idx;
|
|
|
|
snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
|
|
for (idx = 0; idx < SNDRV_CARDS; idx++) {
|
|
if (snd_cards[idx])
|
|
snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void __exit alsa_mixer_oss_exit(void)
|
|
{
|
|
int idx;
|
|
|
|
snd_mixer_oss_notify_callback = NULL;
|
|
for (idx = 0; idx < SNDRV_CARDS; idx++) {
|
|
if (snd_cards[idx])
|
|
snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
|
|
}
|
|
}
|
|
|
|
module_init(alsa_mixer_oss_init)
|
|
module_exit(alsa_mixer_oss_exit)
|
|
|
|
EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
|