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1460 lines
41 KiB
1460 lines
41 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* OSS emulation layer for the mixer interface |
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* Copyright (c) by Jaroslav Kysela <[email protected]> |
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*/ |
|
|
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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 <linux/module.h> |
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#include <linux/compat.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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|
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#define OSS_ALSAEMULVER _SIOR ('M', 249, int) |
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|
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MODULE_AUTHOR("Jaroslav Kysela <[email protected]>"); |
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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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|
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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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|
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err = nonseekable_open(inode, file); |
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if (err < 0) |
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return err; |
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|
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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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snd_card_unref(card); |
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return -ENODEV; |
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} |
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err = snd_card_file_add(card, file); |
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if (err < 0) { |
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snd_card_unref(card); |
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return err; |
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} |
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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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snd_card_unref(card); |
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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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snd_card_unref(card); |
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return -EFAULT; |
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} |
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snd_card_unref(card); |
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return 0; |
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} |
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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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|
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if (file->private_data) { |
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fmixer = 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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|
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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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|
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memset(&info, 0, sizeof(info)); |
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strscpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
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strscpy(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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|
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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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|
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memset(&info, 0, sizeof(info)); |
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strscpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
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strscpy(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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|
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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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|
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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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|
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if (mixer == NULL) |
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return -EIO; |
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mutex_lock(&mixer->reg_mutex); |
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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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mutex_unlock(&mixer->reg_mutex); |
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return result; |
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} |
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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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mutex_lock(&mixer->reg_mutex); |
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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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mutex_unlock(&mixer->reg_mutex); |
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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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mutex_lock(&mixer->reg_mutex); |
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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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mutex_unlock(&mixer->reg_mutex); |
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return result; |
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} |
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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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mutex_lock(&mixer->reg_mutex); |
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if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ |
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unsigned int index; |
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result = mixer->get_recsrc(fmixer, &index); |
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if (result < 0) |
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goto unlock; |
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result = 1 << index; |
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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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mixer->oss_recsrc = result; |
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unlock: |
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mutex_unlock(&mixer->reg_mutex); |
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return result; |
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} |
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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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unsigned int index; |
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int result = 0; |
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|
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if (mixer == NULL) |
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return -EIO; |
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mutex_lock(&mixer->reg_mutex); |
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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, &index); |
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result = 1 << index; |
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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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mutex_unlock(&mixer->reg_mutex); |
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return result; |
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} |
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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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|
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if (mixer == NULL || slot > 30) |
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return -EIO; |
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mutex_lock(&mixer->reg_mutex); |
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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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if (snd_BUG_ON(left < 0 || left > 100)) { |
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result = -EIO; |
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goto unlock; |
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} |
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if (snd_BUG_ON(right < 0 || right > 100)) { |
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result = -EIO; |
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goto unlock; |
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} |
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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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unlock: |
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mutex_unlock(&mixer->reg_mutex); |
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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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|
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if (mixer == NULL || slot > 30) |
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return -EIO; |
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mutex_lock(&mixer->reg_mutex); |
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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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goto unlock; |
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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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unlock: |
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mutex_unlock(&mixer->reg_mutex); |
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return result; |
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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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|
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if (snd_BUG_ON(!fmixer)) |
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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(file->private_data, cmd, arg); |
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} |
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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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|
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if (snd_BUG_ON(!card)) |
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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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EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); |
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|
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#ifdef CONFIG_COMPAT |
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/* all compatible */ |
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static long snd_mixer_oss_ioctl_compat(struct file *file, unsigned int cmd, |
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unsigned long arg) |
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{ |
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return snd_mixer_oss_ioctl1(file->private_data, cmd, |
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(unsigned long)compat_ptr(arg)); |
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} |
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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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/* |
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* REGISTRATION PART |
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*/ |
|
|
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static const 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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.llseek = no_llseek, |
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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 DIV_ROUND_CLOSEST(nrange * (val - omin), 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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#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) |
|
#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) |
|
|
|
struct slot { |
|
unsigned int signature; |
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unsigned int present; |
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unsigned int channels; |
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unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; |
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unsigned int capture_item; |
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const 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; |
|
strscpy(id.name, name, sizeof(id.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); |
|
kctl = snd_ctl_find_numid(card, numid); |
|
if (!kctl) { |
|
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); |
|
kctl = snd_ctl_find_numid(card, numid); |
|
if (!kctl) { |
|
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 = 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); |
|
kctl = snd_ctl_find_numid(card, numid); |
|
if (!kctl) { |
|
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 (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); |
|
res = kctl->put(kctl, uctl); |
|
if (res < 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); |
|
kctl = snd_ctl_find_numid(card, numid); |
|
if (!kctl) { |
|
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 (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; |
|
} |
|
res = kctl->put(kctl, uctl); |
|
if (res < 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 = 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_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_CSWITCH) |
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], 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_CROUTE) |
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], 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_CSWITCH) { |
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], 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_CROUTE) { |
|
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], 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 = 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 = 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 = 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 = 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 __free_only; |
|
} |
|
down_read(&card->controls_rwsem); |
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
|
if (! kctl) { |
|
err = -ENOENT; |
|
goto __unlock; |
|
} |
|
err = kctl->info(kctl, uinfo); |
|
if (err < 0) |
|
goto __unlock; |
|
err = kctl->get(kctl, uctl); |
|
if (err < 0) |
|
goto __unlock; |
|
for (idx = 0; idx < 32; idx++) { |
|
if (!(mixer->mask_recsrc & (1 << idx))) |
|
continue; |
|
pslot = &mixer->slots[idx]; |
|
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); |
|
__free_only: |
|
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 __free_only; |
|
} |
|
down_read(&card->controls_rwsem); |
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
|
if (! kctl) { |
|
err = -ENOENT; |
|
goto __unlock; |
|
} |
|
err = kctl->info(kctl, uinfo); |
|
if (err < 0) |
|
goto __unlock; |
|
for (idx = 0; idx < 32; idx++) { |
|
if (!(mixer->mask_recsrc & (1 << idx))) |
|
continue; |
|
pslot = &mixer->slots[idx]; |
|
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); |
|
__free_only: |
|
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; |
|
} |
|
err = kcontrol->info(kcontrol, info); |
|
if (err < 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 = chn->private_data; |
|
if (p) { |
|
if (p->allocated && p->assigned) { |
|
kfree_const(p->assigned->name); |
|
kfree_const(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; |
|
} |
|
|
|
/* In a separate function to keep gcc 3.2 happy - do NOT merge this in |
|
snd_mixer_oss_build_input! */ |
|
static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, |
|
const struct snd_mixer_oss_assign_table *ptr, |
|
struct slot *slot) |
|
{ |
|
char str[64]; |
|
int err; |
|
|
|
err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_GLOBAL); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Switch", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_GSWITCH); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Route", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_GROUTE); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Volume", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_GVOLUME); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Playback Switch", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_PSWITCH); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Playback Route", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_PROUTE); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Playback Volume", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_PVOLUME); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Capture Switch", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_CSWITCH); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Capture Route", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_CROUTE); |
|
if (err) |
|
return err; |
|
sprintf(str, "%s Capture Volume", ptr->name); |
|
err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
|
SNDRV_MIXER_OSS_ITEM_CVOLUME); |
|
if (err) |
|
return err; |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* 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, |
|
const 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_all(mixer, ptr, &slot)) |
|
return 0; |
|
down_read(&mixer->card->controls_rwsem); |
|
kctl = NULL; |
|
if (!ptr->index) |
|
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
|
if (kctl) { |
|
struct snd_ctl_elem_info *uinfo; |
|
|
|
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
|
if (! uinfo) { |
|
up_read(&mixer->card->controls_rwsem); |
|
return -ENOMEM; |
|
} |
|
|
|
if (kctl->info(kctl, uinfo)) { |
|
up_read(&mixer->card->controls_rwsem); |
|
kfree(uinfo); |
|
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); |
|
kfree(uinfo); |
|
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 = 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_SND_PROC_FS |
|
/* |
|
*/ |
|
#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name |
|
static const char * const 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; |
|
|
|
mutex_lock(&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"); |
|
} |
|
mutex_unlock(&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]; |
|
const char *cptr; |
|
unsigned int idx; |
|
int ch; |
|
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) { |
|
pr_err("ALSA: mixer_oss: invalid OSS volume '%s'\n", |
|
str); |
|
continue; |
|
} |
|
cptr = snd_info_get_str(str, cptr, sizeof(str)); |
|
if (! *str) { |
|
/* remove the entry */ |
|
mutex_lock(&mixer->reg_mutex); |
|
mixer_slot_clear(&mixer->slots[ch]); |
|
mutex_unlock(&mixer->reg_mutex); |
|
continue; |
|
} |
|
snd_info_get_str(idxstr, cptr, sizeof(idxstr)); |
|
idx = simple_strtoul(idxstr, NULL, 10); |
|
if (idx >= 0x4000) { /* too big */ |
|
pr_err("ALSA: mixer_oss: invalid index %d\n", idx); |
|
continue; |
|
} |
|
mutex_lock(&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) |
|
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: |
|
mutex_unlock(&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 | 0644; |
|
entry->c.text.read = snd_mixer_oss_proc_read; |
|
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) |
|
{ |
|
snd_info_free_entry(mixer->proc_entry); |
|
mixer->proc_entry = NULL; |
|
} |
|
#else /* !CONFIG_SND_PROC_FS */ |
|
#define snd_mixer_oss_proc_init(mix) |
|
#define snd_mixer_oss_proc_done(mix) |
|
#endif /* CONFIG_SND_PROC_FS */ |
|
|
|
static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) |
|
{ |
|
static const 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, "Beep", 0 }, |
|
{ SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */ |
|
{ SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */ |
|
{ 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, "Speaker", 0 }, /*fallback*/ |
|
{ SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ |
|
{ 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; |
|
|
|
if (!mixer) |
|
return 0; |
|
card = mixer->card; |
|
if (snd_BUG_ON(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) { |
|
int idx, err; |
|
|
|
mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); |
|
if (mixer == NULL) |
|
return -ENOMEM; |
|
mutex_init(&mixer->reg_mutex); |
|
err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, |
|
card, 0, |
|
&snd_mixer_oss_f_ops, card); |
|
if (err < 0) { |
|
dev_err(card->dev, |
|
"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) |
|
strscpy(mixer->name, card->mixername, sizeof(mixer->name)); |
|
else |
|
snprintf(mixer->name, sizeof(mixer->name), |
|
"mixer%i", card->number); |
|
#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 { |
|
mixer = card->mixer_oss; |
|
if (mixer == NULL) |
|
return 0; |
|
if (mixer->oss_dev_alloc) { |
|
#ifdef SNDRV_OSS_INFO_DEV_MIXERS |
|
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); |
|
#endif |
|
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); |
|
mixer->oss_dev_alloc = 0; |
|
} |
|
if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) |
|
return 0; |
|
snd_mixer_oss_proc_done(mixer); |
|
return snd_mixer_oss_free1(mixer); |
|
} |
|
return 0; |
|
} |
|
|
|
static int __init alsa_mixer_oss_init(void) |
|
{ |
|
struct snd_card *card; |
|
int idx; |
|
|
|
snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; |
|
for (idx = 0; idx < SNDRV_CARDS; idx++) { |
|
card = snd_card_ref(idx); |
|
if (card) { |
|
snd_mixer_oss_notify_handler(card, SND_MIXER_OSS_NOTIFY_REGISTER); |
|
snd_card_unref(card); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static void __exit alsa_mixer_oss_exit(void) |
|
{ |
|
struct snd_card *card; |
|
int idx; |
|
|
|
snd_mixer_oss_notify_callback = NULL; |
|
for (idx = 0; idx < SNDRV_CARDS; idx++) { |
|
card = snd_card_ref(idx); |
|
if (card) { |
|
snd_mixer_oss_notify_handler(card, SND_MIXER_OSS_NOTIFY_FREE); |
|
snd_card_unref(card); |
|
} |
|
} |
|
} |
|
|
|
module_init(alsa_mixer_oss_init) |
|
module_exit(alsa_mixer_oss_exit)
|
|
|