diff options
Diffstat (limited to 'sound/core/sound_oss.c')
| -rw-r--r-- | sound/core/sound_oss.c | 64 |
1 files changed, 20 insertions, 44 deletions
diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 4d189ffaa7643..afbfd8df12982 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -35,25 +35,12 @@ #include <sound/info.h> #include <linux/sound.h> -#define SNDRV_OS_MINORS 256 +#define SNDRV_OSS_MINORS 128 -static struct list_head snd_oss_minors_hash[SNDRV_CARDS]; +static struct snd_minor *snd_oss_minors[SNDRV_OSS_MINORS]; static DECLARE_MUTEX(sound_oss_mutex); -static struct snd_minor *snd_oss_minor_search(int minor) -{ - struct list_head *list; - struct snd_minor *mptr; - - list_for_each(list, &snd_oss_minors_hash[SNDRV_MINOR_OSS_CARD(minor)]) { - mptr = list_entry(list, struct snd_minor, list); - if (mptr->number == minor) - return mptr; - } - return NULL; -} - static int snd_oss_kernel_minor(int type, struct snd_card *card, int dev) { int minor; @@ -86,7 +73,7 @@ static int snd_oss_kernel_minor(int type, struct snd_card *card, int dev) default: return -EINVAL; } - snd_assert(minor >= 0 && minor < SNDRV_OS_MINORS, return -EINVAL); + snd_assert(minor >= 0 && minor < SNDRV_OSS_MINORS, return -EINVAL); return minor; } @@ -103,15 +90,15 @@ int snd_register_oss_device(int type, struct snd_card *card, int dev, if (minor < 0) return minor; - preg = kzalloc(sizeof(struct snd_minor), GFP_KERNEL); + preg = kmalloc(sizeof(struct snd_minor), GFP_KERNEL); if (preg == NULL) return -ENOMEM; - preg->number = minor; preg->type = type; + preg->card = card ? card->number : -1; preg->device = dev; preg->f_ops = f_ops; down(&sound_oss_mutex); - list_add_tail(&preg->list, &snd_oss_minors_hash[cidx]); + snd_oss_minors[minor] = preg; minor_unit = SNDRV_MINOR_OSS_DEVICE(minor); switch (minor_unit) { case SNDRV_MINOR_OSS_PCM: @@ -143,7 +130,7 @@ int snd_register_oss_device(int type, struct snd_card *card, int dev, unregister_sound_special(register2); if (register1 >= 0) unregister_sound_special(register1); - list_del(&preg->list); + snd_oss_minors[minor] = NULL; up(&sound_oss_mutex); kfree(preg); return -EBUSY; @@ -159,7 +146,7 @@ int snd_unregister_oss_device(int type, struct snd_card *card, int dev) if (minor < 0) return minor; down(&sound_oss_mutex); - mptr = snd_oss_minor_search(minor); + mptr = snd_oss_minors[minor]; if (mptr == NULL) { up(&sound_oss_mutex); return -ENOENT; @@ -178,7 +165,7 @@ int snd_unregister_oss_device(int type, struct snd_card *card, int dev) } if (track2 >= 0) unregister_sound_special(track2); - list_del(&mptr->list); + snd_oss_minors[minor] = NULL; up(&sound_oss_mutex); kfree(mptr); return 0; @@ -214,22 +201,20 @@ static const char *snd_oss_device_type_name(int type) static void snd_minor_info_oss_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { - int card, dev; - struct list_head *list; + int minor; struct snd_minor *mptr; down(&sound_oss_mutex); - for (card = 0; card < SNDRV_CARDS; card++) { - list_for_each(list, &snd_oss_minors_hash[card]) { - mptr = list_entry(list, struct snd_minor, list); - dev = SNDRV_MINOR_OSS_DEVICE(mptr->number); - if (dev != SNDRV_MINOR_OSS_SNDSTAT && - dev != SNDRV_MINOR_OSS_SEQUENCER && - dev != SNDRV_MINOR_OSS_MUSIC) - snd_iprintf(buffer, "%3i: [%i-%2i]: %s\n", mptr->number, card, dev, snd_oss_device_type_name(mptr->type)); - else - snd_iprintf(buffer, "%3i: : %s\n", mptr->number, snd_oss_device_type_name(mptr->type)); - } + for (minor = 0; minor < SNDRV_OSS_MINORS; ++minor) { + if (!(mptr = snd_oss_minors[minor])) + continue; + if (mptr->card >= 0) + snd_iprintf(buffer, "%3i: [%i-%2i]: %s\n", minor, + mptr->card, mptr->device, + snd_oss_device_type_name(mptr->type)); + else + snd_iprintf(buffer, "%3i: : %s\n", minor, + snd_oss_device_type_name(mptr->type)); } up(&sound_oss_mutex); } @@ -264,13 +249,4 @@ int __exit snd_minor_info_oss_done(void) return 0; } -int __init snd_oss_init_module(void) -{ - int card; - - for (card = 0; card < SNDRV_CARDS; card++) - INIT_LIST_HEAD(&snd_oss_minors_hash[card]); - return 0; -} - #endif /* CONFIG_SND_OSSEMUL */ |