X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sound%2Fcore%2Fsound.c;h=7edd1fc58b1747c20c7f8c65b7815053899949d5;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=108e430b50362dc10f65f97e73ecdc0992d93b62;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git diff --git a/sound/core/sound.c b/sound/core/sound.c index 108e430b5..7edd1fc58 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -32,15 +32,15 @@ #include #include #include -#include #include #define SNDRV_OS_MINORS 256 static int major = CONFIG_SND_MAJOR; int snd_major; +EXPORT_SYMBOL(snd_major); + static int cards_limit = 1; -static int device_mode = S_IFCHR | S_IRUGO | S_IWUGO; MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Advanced Linux Sound Architecture driver for soundcards."); @@ -49,10 +49,6 @@ module_param(major, int, 0444); MODULE_PARM_DESC(major, "Major # for sound driver."); module_param(cards_limit, int, 0444); MODULE_PARM_DESC(cards_limit, "Count of auto-loadable soundcards."); -#ifdef CONFIG_DEVFS_FS -module_param(device_mode, int, 0444); -MODULE_PARM_DESC(device_mode, "Device file permission mask for devfs."); -#endif MODULE_ALIAS_CHARDEV_MAJOR(CONFIG_SND_MAJOR); /* this one holds the actual max. card number currently available. @@ -60,6 +56,7 @@ MODULE_ALIAS_CHARDEV_MAJOR(CONFIG_SND_MAJOR); * modules are loaded manually, this limit number increases, too. */ int snd_ecards_limit; +EXPORT_SYMBOL(snd_ecards_limit); static struct snd_minor *snd_minors[SNDRV_OS_MINORS]; static DEFINE_MUTEX(sound_mutex); @@ -78,20 +75,17 @@ extern struct class *sound_class; */ void snd_request_card(int card) { - int locked; - if (! current->fs->root) return; - read_lock(&snd_card_rwlock); - locked = snd_cards_lock & (1 << card); - read_unlock(&snd_card_rwlock); - if (locked) + if (snd_card_locked(card)) return; if (card < 0 || card >= cards_limit) return; request_module("snd-card-%i", card); } +EXPORT_SYMBOL(snd_request_card); + static void snd_request_other(int minor) { char *str; @@ -133,6 +127,8 @@ void *snd_lookup_minor_data(unsigned int minor, int type) return private_data; } +EXPORT_SYMBOL(snd_lookup_minor_data); + static int snd_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); @@ -248,7 +244,7 @@ int snd_register_device(int type, struct snd_card *card, int dev, struct device *device = NULL; snd_assert(name, return -EINVAL); - preg = kmalloc(sizeof(struct snd_minor) + strlen(name) + 1, GFP_KERNEL); + preg = kmalloc(sizeof *preg, GFP_KERNEL); if (preg == NULL) return -ENOMEM; preg->type = type; @@ -256,7 +252,6 @@ int snd_register_device(int type, struct snd_card *card, int dev, preg->device = dev; preg->f_ops = f_ops; preg->private_data = private_data; - strcpy(preg->name, name); mutex_lock(&sound_mutex); #ifdef CONFIG_SND_DYNAMIC_MINORS minor = snd_find_free_minor(); @@ -271,8 +266,6 @@ int snd_register_device(int type, struct snd_card *card, int dev, return minor; } snd_minors[minor] = preg; - if (type != SNDRV_DEVICE_TYPE_CONTROL || preg->card >= cards_limit) - devfs_mk_cdev(MKDEV(major, minor), S_IFCHR | device_mode, "snd/%s", name); if (card) device = card->dev; class_device_create(sound_class, NULL, MKDEV(major, minor), device, "%s", name); @@ -281,6 +274,8 @@ int snd_register_device(int type, struct snd_card *card, int dev, return 0; } +EXPORT_SYMBOL(snd_register_device); + /** * snd_unregister_device - unregister the device on the given card * @type: the device type, SNDRV_DEVICE_TYPE_XXX @@ -310,9 +305,6 @@ int snd_unregister_device(int type, struct snd_card *card, int dev) return -EINVAL; } - if (mptr->type != SNDRV_DEVICE_TYPE_CONTROL || - mptr->card >= cards_limit) /* created in sound.c */ - devfs_remove("snd/%s", mptr->name); class_device_destroy(sound_class, MKDEV(major, minor)); snd_minors[minor] = NULL; @@ -321,12 +313,14 @@ int snd_unregister_device(int type, struct snd_card *card, int dev) return 0; } +EXPORT_SYMBOL(snd_unregister_device); + #ifdef CONFIG_PROC_FS /* * INFO PART */ -static struct snd_info_entry *snd_minor_info_entry = NULL; +static struct snd_info_entry *snd_minor_info_entry; static const char *snd_device_type_name(int type) { @@ -381,7 +375,6 @@ int __init snd_minor_info_init(void) entry = snd_info_create_module_entry(THIS_MODULE, "devices", NULL); if (entry) { - entry->c.text.read_size = PAGE_SIZE; entry->c.text.read = snd_minor_info_read; if (snd_info_register(entry) < 0) { snd_info_free_entry(entry); @@ -406,24 +399,17 @@ int __exit snd_minor_info_done(void) static int __init alsa_sound_init(void) { - short controlnum; - snd_major = major; snd_ecards_limit = cards_limit; - devfs_mk_dir("snd"); if (register_chrdev(major, "alsa", &snd_fops)) { snd_printk(KERN_ERR "unable to register native major device number %d\n", major); - devfs_remove("snd"); return -EIO; } if (snd_info_init() < 0) { unregister_chrdev(major, "alsa"); - devfs_remove("snd"); return -ENOMEM; } snd_info_minor_register(); - for (controlnum = 0; controlnum < cards_limit; controlnum++) - devfs_mk_cdev(MKDEV(major, controlnum<<5), S_IFCHR | device_mode, "snd/controlC%d", controlnum); #ifndef MODULE printk(KERN_INFO "Advanced Linux Sound Architecture Driver Version " CONFIG_SND_VERSION CONFIG_SND_DATE ".\n"); #endif @@ -432,105 +418,11 @@ static int __init alsa_sound_init(void) static void __exit alsa_sound_exit(void) { - short controlnum; - - for (controlnum = 0; controlnum < cards_limit; controlnum++) - devfs_remove("snd/controlC%d", controlnum); - snd_info_minor_unregister(); snd_info_done(); if (unregister_chrdev(major, "alsa") != 0) snd_printk(KERN_ERR "unable to unregister major device number %d\n", major); - devfs_remove("snd"); } module_init(alsa_sound_init) module_exit(alsa_sound_exit) - - /* sound.c */ -EXPORT_SYMBOL(snd_major); -EXPORT_SYMBOL(snd_ecards_limit); -#if defined(CONFIG_KMOD) -EXPORT_SYMBOL(snd_request_card); -#endif -EXPORT_SYMBOL(snd_register_device); -EXPORT_SYMBOL(snd_unregister_device); -EXPORT_SYMBOL(snd_lookup_minor_data); -#if defined(CONFIG_SND_OSSEMUL) -EXPORT_SYMBOL(snd_register_oss_device); -EXPORT_SYMBOL(snd_unregister_oss_device); -EXPORT_SYMBOL(snd_lookup_oss_minor_data); -#endif - /* memory.c */ -EXPORT_SYMBOL(copy_to_user_fromio); -EXPORT_SYMBOL(copy_from_user_toio); - /* init.c */ -EXPORT_SYMBOL(snd_cards); -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) -EXPORT_SYMBOL(snd_mixer_oss_notify_callback); -#endif -EXPORT_SYMBOL(snd_card_new); -EXPORT_SYMBOL(snd_card_disconnect); -EXPORT_SYMBOL(snd_card_free); -EXPORT_SYMBOL(snd_card_free_in_thread); -EXPORT_SYMBOL(snd_card_register); -EXPORT_SYMBOL(snd_component_add); -EXPORT_SYMBOL(snd_card_file_add); -EXPORT_SYMBOL(snd_card_file_remove); -#ifdef CONFIG_PM -EXPORT_SYMBOL(snd_power_wait); -#endif - /* device.c */ -EXPORT_SYMBOL(snd_device_new); -EXPORT_SYMBOL(snd_device_register); -EXPORT_SYMBOL(snd_device_free); - /* isadma.c */ -#ifdef CONFIG_ISA_DMA_API -EXPORT_SYMBOL(snd_dma_program); -EXPORT_SYMBOL(snd_dma_disable); -EXPORT_SYMBOL(snd_dma_pointer); -#endif - /* info.c */ -#ifdef CONFIG_PROC_FS -EXPORT_SYMBOL(snd_seq_root); -EXPORT_SYMBOL(snd_iprintf); -EXPORT_SYMBOL(snd_info_get_line); -EXPORT_SYMBOL(snd_info_get_str); -EXPORT_SYMBOL(snd_info_create_module_entry); -EXPORT_SYMBOL(snd_info_create_card_entry); -EXPORT_SYMBOL(snd_info_free_entry); -EXPORT_SYMBOL(snd_info_register); -EXPORT_SYMBOL(snd_info_unregister); -EXPORT_SYMBOL(snd_card_proc_new); -#endif - /* info_oss.c */ -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) -EXPORT_SYMBOL(snd_oss_info_register); -#endif - /* control.c */ -EXPORT_SYMBOL(snd_ctl_new); -EXPORT_SYMBOL(snd_ctl_new1); -EXPORT_SYMBOL(snd_ctl_free_one); -EXPORT_SYMBOL(snd_ctl_add); -EXPORT_SYMBOL(snd_ctl_remove); -EXPORT_SYMBOL(snd_ctl_remove_id); -EXPORT_SYMBOL(snd_ctl_rename_id); -EXPORT_SYMBOL(snd_ctl_find_numid); -EXPORT_SYMBOL(snd_ctl_find_id); -EXPORT_SYMBOL(snd_ctl_notify); -EXPORT_SYMBOL(snd_ctl_register_ioctl); -EXPORT_SYMBOL(snd_ctl_unregister_ioctl); -#ifdef CONFIG_COMPAT -EXPORT_SYMBOL(snd_ctl_register_ioctl_compat); -EXPORT_SYMBOL(snd_ctl_unregister_ioctl_compat); -#endif -EXPORT_SYMBOL(snd_ctl_elem_read); -EXPORT_SYMBOL(snd_ctl_elem_write); - /* misc.c */ -EXPORT_SYMBOL(release_and_free_resource); -#ifdef CONFIG_SND_VERBOSE_PRINTK -EXPORT_SYMBOL(snd_verbose_printk); -#endif -#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) -EXPORT_SYMBOL(snd_verbose_printd); -#endif