From 4adb7bcbcb69d3bee0ed72de83adaee27daccdd8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 16:10:22 +0200 Subject: ALSA: core: Use seq_file for text proc file reads seq_file is _the_ standard interface for simple text proc files. Though, we still need to support the binary proc files and the text file write, and also we need to manage the device disconnection gracefully. Thus this patch just replaces the text file read code with seq_file while keeping the rest intact. snd_iprintf() helper function is now a macro to expand itself to seq_printf() to be compatible with the existing code. The seq_file object is stored to the unused entry->rbuffer->buffer pointer. When the output size is expected to be large (greater than PAGE_SIZE), the driver should set entry->size field beforehand. Then the given size will be preallocated and the multiple show calls can be avoided. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/core/info.c | 569 ++++++++++++++++++++++++------------------------------ 1 file changed, 248 insertions(+), 321 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 9f404e965ea2..8c1275f0fcbd 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -81,66 +81,6 @@ static int snd_info_version_init(void); static int snd_info_version_done(void); static void snd_info_disconnect(struct snd_info_entry *entry); - -/* resize the proc r/w buffer */ -static int resize_info_buffer(struct snd_info_buffer *buffer, - unsigned int nsize) -{ - char *nbuf; - - nsize = PAGE_ALIGN(nsize); - nbuf = krealloc(buffer->buffer, nsize, GFP_KERNEL | __GFP_ZERO); - if (! nbuf) - return -ENOMEM; - - buffer->buffer = nbuf; - buffer->len = nsize; - return 0; -} - -/** - * snd_iprintf - printf on the procfs buffer - * @buffer: the procfs buffer - * @fmt: the printf format - * - * Outputs the string on the procfs buffer just like printf(). - * - * Return: The size of output string, or a negative error code. - */ -int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...) -{ - va_list args; - int len, res; - int err = 0; - - might_sleep(); - if (buffer->stop || buffer->error) - return 0; - len = buffer->len - buffer->size; - va_start(args, fmt); - for (;;) { - va_list ap; - va_copy(ap, args); - res = vsnprintf(buffer->buffer + buffer->curr, len, fmt, ap); - va_end(ap); - if (res < len) - break; - err = resize_info_buffer(buffer, buffer->len + PAGE_SIZE); - if (err < 0) - break; - len = buffer->len - buffer->size; - } - va_end(args); - - if (err < 0) - return err; - buffer->curr += res; - buffer->size += res; - return res; -} - -EXPORT_SYMBOL(snd_iprintf); - /* */ @@ -153,6 +93,37 @@ EXPORT_SYMBOL(snd_seq_root); struct snd_info_entry *snd_oss_root; #endif +static int alloc_info_private(struct snd_info_entry *entry, + struct snd_info_private_data **ret) +{ + struct snd_info_private_data *data; + + if (!entry || !entry->p) + return -ENODEV; + if (!try_module_get(entry->module)) + return -EFAULT; + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) { + module_put(entry->module); + return -ENOMEM; + } + data->entry = entry; + *ret = data; + return 0; +} + +static bool valid_pos(loff_t pos, size_t count) +{ + if (pos < 0 || (long) pos != pos || (ssize_t) count < 0) + return false; + if ((unsigned long) pos + (unsigned long) count < (unsigned long) pos) + return false; + return true; +} + +/* + * file ops for binary proc files + */ static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) { struct snd_info_private_data *data; @@ -162,17 +133,14 @@ static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) data = file->private_data; entry = data->entry; mutex_lock(&entry->access); - if (entry->content == SNDRV_INFO_CONTENT_DATA && - entry->c.ops->llseek) { + if (entry->c.ops->llseek) { offset = entry->c.ops->llseek(entry, data->file_private_data, file, offset, orig); goto out; } - if (entry->content == SNDRV_INFO_CONTENT_DATA) - size = entry->size; - else - size = 0; + + size = entry->size; switch (orig) { case SEEK_SET: break; @@ -201,45 +169,20 @@ static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) static ssize_t snd_info_entry_read(struct file *file, char __user *buffer, size_t count, loff_t * offset) { - struct snd_info_private_data *data; - struct snd_info_entry *entry; - struct snd_info_buffer *buf; - size_t size = 0; + struct snd_info_private_data *data = file->private_data; + struct snd_info_entry *entry = data->entry; + size_t size; loff_t pos; - data = file->private_data; - if (snd_BUG_ON(!data)) - return -ENXIO; pos = *offset; - if (pos < 0 || (long) pos != pos || (ssize_t) count < 0) - return -EIO; - if ((unsigned long) pos + (unsigned long) count < (unsigned long) pos) + if (!valid_pos(pos, count)) return -EIO; - entry = data->entry; - switch (entry->content) { - case SNDRV_INFO_CONTENT_TEXT: - buf = data->rbuffer; - if (buf == NULL) - return -EIO; - if (pos >= buf->size) - return 0; - size = buf->size - pos; - size = min(count, size); - if (copy_to_user(buffer, buf->buffer + pos, size)) - return -EFAULT; - break; - case SNDRV_INFO_CONTENT_DATA: - if (pos >= entry->size) - return 0; - if (entry->c.ops->read) { - size = entry->size - pos; - size = min(count, size); - size = entry->c.ops->read(entry, - data->file_private_data, - file, buffer, size, pos); - } - break; - } + if (pos >= entry->size) + return 0; + size = entry->size - pos; + size = min(count, size); + size = entry->c.ops->read(entry, data->file_private_data, + file, buffer, size, pos); if ((ssize_t) size > 0) *offset = pos + size; return size; @@ -248,280 +191,259 @@ static ssize_t snd_info_entry_read(struct file *file, char __user *buffer, static ssize_t snd_info_entry_write(struct file *file, const char __user *buffer, size_t count, loff_t * offset) { - struct snd_info_private_data *data; - struct snd_info_entry *entry; - struct snd_info_buffer *buf; + struct snd_info_private_data *data = file->private_data; + struct snd_info_entry *entry = data->entry; ssize_t size = 0; loff_t pos; - data = file->private_data; - if (snd_BUG_ON(!data)) - return -ENXIO; - entry = data->entry; pos = *offset; - if (pos < 0 || (long) pos != pos || (ssize_t) count < 0) + if (!valid_pos(pos, count)) return -EIO; - if ((unsigned long) pos + (unsigned long) count < (unsigned long) pos) - return -EIO; - switch (entry->content) { - case SNDRV_INFO_CONTENT_TEXT: - buf = data->wbuffer; - if (buf == NULL) - return -EIO; - mutex_lock(&entry->access); - if (pos + count >= buf->len) { - if (resize_info_buffer(buf, pos + count)) { - mutex_unlock(&entry->access); - return -ENOMEM; - } - } - if (copy_from_user(buf->buffer + pos, buffer, count)) { - mutex_unlock(&entry->access); - return -EFAULT; - } - buf->size = pos + count; - mutex_unlock(&entry->access); - size = count; - break; - case SNDRV_INFO_CONTENT_DATA: - if (entry->c.ops->write && count > 0) { - size_t maxsize = entry->size - pos; - count = min(count, maxsize); - size = entry->c.ops->write(entry, - data->file_private_data, - file, buffer, count, pos); - } - break; + if (count > 0) { + size_t maxsize = entry->size - pos; + count = min(count, maxsize); + size = entry->c.ops->write(entry, data->file_private_data, + file, buffer, count, pos); } - if ((ssize_t) size > 0) + if (size > 0) *offset = pos + size; return size; } -static int snd_info_entry_open(struct inode *inode, struct file *file) +static unsigned int snd_info_entry_poll(struct file *file, poll_table *wait) +{ + struct snd_info_private_data *data = file->private_data; + struct snd_info_entry *entry = data->entry; + unsigned int mask = 0; + + if (entry->c.ops->poll) + return entry->c.ops->poll(entry, + data->file_private_data, + file, wait); + if (entry->c.ops->read) + mask |= POLLIN | POLLRDNORM; + if (entry->c.ops->write) + mask |= POLLOUT | POLLWRNORM; + return mask; +} + +static long snd_info_entry_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct snd_info_private_data *data = file->private_data; + struct snd_info_entry *entry = data->entry; + + if (!entry->c.ops->ioctl) + return -ENOTTY; + return entry->c.ops->ioctl(entry, data->file_private_data, + file, cmd, arg); +} + +static int snd_info_entry_mmap(struct file *file, struct vm_area_struct *vma) { + struct inode *inode = file_inode(file); + struct snd_info_private_data *data; struct snd_info_entry *entry; + + data = file->private_data; + if (data == NULL) + return 0; + entry = data->entry; + if (!entry->c.ops->mmap) + return -ENXIO; + return entry->c.ops->mmap(entry, data->file_private_data, + inode, file, vma); +} + +static int snd_info_entry_open(struct inode *inode, struct file *file) +{ + struct snd_info_entry *entry = PDE_DATA(inode); struct snd_info_private_data *data; - struct snd_info_buffer *buffer; int mode, err; mutex_lock(&info_mutex); - entry = PDE_DATA(inode); - if (entry == NULL || ! entry->p) { - mutex_unlock(&info_mutex); - return -ENODEV; - } - if (!try_module_get(entry->module)) { - err = -EFAULT; - goto __error1; - } + err = alloc_info_private(entry, &data); + if (err < 0) + goto unlock; + mode = file->f_flags & O_ACCMODE; - if (mode == O_RDONLY || mode == O_RDWR) { - if ((entry->content == SNDRV_INFO_CONTENT_DATA && - entry->c.ops->read == NULL)) { - err = -ENODEV; - goto __error; - } - } - if (mode == O_WRONLY || mode == O_RDWR) { - if ((entry->content == SNDRV_INFO_CONTENT_DATA && - entry->c.ops->write == NULL)) { - err = -ENODEV; - goto __error; - } + if (((mode == O_RDONLY || mode == O_RDWR) && !entry->c.ops->read) || + ((mode == O_WRONLY || mode == O_RDWR) && !entry->c.ops->write)) { + err = -ENODEV; + goto error; } - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (data == NULL) { - err = -ENOMEM; - goto __error; - } - data->entry = entry; - switch (entry->content) { - case SNDRV_INFO_CONTENT_TEXT: - if (mode == O_RDONLY || mode == O_RDWR) { - buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); - if (buffer == NULL) - goto __nomem; - data->rbuffer = buffer; - buffer->len = PAGE_SIZE; - buffer->buffer = kzalloc(buffer->len, GFP_KERNEL); - if (buffer->buffer == NULL) - goto __nomem; - } - if (mode == O_WRONLY || mode == O_RDWR) { - buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); - if (buffer == NULL) - goto __nomem; - data->wbuffer = buffer; - buffer->len = PAGE_SIZE; - buffer->buffer = kmalloc(buffer->len, GFP_KERNEL); - if (buffer->buffer == NULL) - goto __nomem; - } - break; - case SNDRV_INFO_CONTENT_DATA: /* data */ - if (entry->c.ops->open) { - if ((err = entry->c.ops->open(entry, mode, - &data->file_private_data)) < 0) { - kfree(data); - goto __error; - } - } - break; + + if (entry->c.ops->open) { + err = entry->c.ops->open(entry, mode, &data->file_private_data); + if (err < 0) + goto error; } + file->private_data = data; mutex_unlock(&info_mutex); - if (entry->content == SNDRV_INFO_CONTENT_TEXT && - (mode == O_RDONLY || mode == O_RDWR)) { - if (entry->c.text.read) { - mutex_lock(&entry->access); - entry->c.text.read(entry, data->rbuffer); - mutex_unlock(&entry->access); - } - } return 0; - __nomem: - if (data->rbuffer) { - kfree(data->rbuffer->buffer); - kfree(data->rbuffer); - } - if (data->wbuffer) { - kfree(data->wbuffer->buffer); - kfree(data->wbuffer); - } + error: kfree(data); - err = -ENOMEM; - __error: module_put(entry->module); - __error1: + unlock: mutex_unlock(&info_mutex); return err; } static int snd_info_entry_release(struct inode *inode, struct file *file) { - struct snd_info_entry *entry; - struct snd_info_private_data *data; - int mode; + struct snd_info_private_data *data = file->private_data; + struct snd_info_entry *entry = data->entry; - mode = file->f_flags & O_ACCMODE; - data = file->private_data; - entry = data->entry; - switch (entry->content) { - case SNDRV_INFO_CONTENT_TEXT: - if (data->rbuffer) { - kfree(data->rbuffer->buffer); - kfree(data->rbuffer); - } - if (data->wbuffer) { - if (entry->c.text.write) { - entry->c.text.write(entry, data->wbuffer); - if (data->wbuffer->error) { - if (entry->card) - dev_warn(entry->card->dev, "info: data write error to %s (%i)\n", - entry->name, - data->wbuffer->error); - else - pr_warn("ALSA: info: data write error to %s (%i)\n", - entry->name, - data->wbuffer->error); - } - } - kfree(data->wbuffer->buffer); - kfree(data->wbuffer); - } - break; - case SNDRV_INFO_CONTENT_DATA: - if (entry->c.ops->release) - entry->c.ops->release(entry, mode, - data->file_private_data); - break; - } + if (entry->c.ops->release) + entry->c.ops->release(entry, file->f_flags & O_ACCMODE, + data->file_private_data); module_put(entry->module); kfree(data); return 0; } -static unsigned int snd_info_entry_poll(struct file *file, poll_table * wait) +static const struct file_operations snd_info_entry_operations = { - struct snd_info_private_data *data; - struct snd_info_entry *entry; - unsigned int mask; + .owner = THIS_MODULE, + .llseek = snd_info_entry_llseek, + .read = snd_info_entry_read, + .write = snd_info_entry_write, + .poll = snd_info_entry_poll, + .unlocked_ioctl = snd_info_entry_ioctl, + .mmap = snd_info_entry_mmap, + .open = snd_info_entry_open, + .release = snd_info_entry_release, +}; - data = file->private_data; - if (data == NULL) - return 0; - entry = data->entry; - mask = 0; - switch (entry->content) { - case SNDRV_INFO_CONTENT_DATA: - if (entry->c.ops->poll) - return entry->c.ops->poll(entry, - data->file_private_data, - file, wait); - if (entry->c.ops->read) - mask |= POLLIN | POLLRDNORM; - if (entry->c.ops->write) - mask |= POLLOUT | POLLWRNORM; - break; +/* + * file ops for text proc files + */ +static ssize_t snd_info_text_entry_write(struct file *file, + const char __user *buffer, + size_t count, loff_t *offset) +{ + struct seq_file *m = file->private_data; + struct snd_info_private_data *data = m->private; + struct snd_info_entry *entry = data->entry; + struct snd_info_buffer *buf; + loff_t pos; + size_t next; + int err = 0; + + pos = *offset; + if (!valid_pos(pos, count)) + return -EIO; + next = pos + count; + mutex_lock(&entry->access); + buf = data->wbuffer; + if (!buf) { + data->wbuffer = buf = kzalloc(sizeof(*buf), GFP_KERNEL); + if (!buf) { + err = -ENOMEM; + goto error; + } } - return mask; + if (next > buf->len) { + char *nbuf = krealloc(buf->buffer, PAGE_ALIGN(next), + GFP_KERNEL | __GFP_ZERO); + if (!nbuf) { + err = -ENOMEM; + goto error; + } + buf->buffer = nbuf; + buf->len = PAGE_ALIGN(next); + } + if (copy_from_user(buf->buffer + pos, buffer, count)) { + err = -EFAULT; + goto error; + } + buf->size = next; + error: + mutex_unlock(&entry->access); + if (err < 0) + return err; + *offset = next; + return count; } -static long snd_info_entry_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) +static int snd_info_seq_show(struct seq_file *seq, void *p) { - struct snd_info_private_data *data; - struct snd_info_entry *entry; + struct snd_info_private_data *data = seq->private; + struct snd_info_entry *entry = data->entry; - data = file->private_data; - if (data == NULL) - return 0; - entry = data->entry; - switch (entry->content) { - case SNDRV_INFO_CONTENT_DATA: - if (entry->c.ops->ioctl) - return entry->c.ops->ioctl(entry, - data->file_private_data, - file, cmd, arg); - break; + if (entry->c.text.read) { + data->rbuffer->buffer = (char *)seq; /* XXX hack! */ + entry->c.text.read(entry, data->rbuffer); } - return -ENOTTY; + return 0; } -static int snd_info_entry_mmap(struct file *file, struct vm_area_struct *vma) +static int snd_info_text_entry_open(struct inode *inode, struct file *file) { - struct inode *inode = file_inode(file); + struct snd_info_entry *entry = PDE_DATA(inode); struct snd_info_private_data *data; - struct snd_info_entry *entry; + int err; - data = file->private_data; - if (data == NULL) - return 0; - entry = data->entry; - switch (entry->content) { - case SNDRV_INFO_CONTENT_DATA: - if (entry->c.ops->mmap) - return entry->c.ops->mmap(entry, - data->file_private_data, - inode, file, vma); - break; + mutex_lock(&info_mutex); + err = alloc_info_private(entry, &data); + if (err < 0) + goto unlock; + + data->rbuffer = kzalloc(sizeof(*data->rbuffer), GFP_KERNEL); + if (!data->rbuffer) { + err = -ENOMEM; + goto error; + } + if (entry->size) + err = single_open_size(file, snd_info_seq_show, data, + entry->size); + else + err = single_open(file, snd_info_seq_show, data); + if (err < 0) + goto error; + mutex_unlock(&info_mutex); + return 0; + + error: + kfree(data->rbuffer); + kfree(data); + module_put(entry->module); + unlock: + mutex_unlock(&info_mutex); + return err; +} + +static int snd_info_text_entry_release(struct inode *inode, struct file *file) +{ + struct seq_file *m = file->private_data; + struct snd_info_private_data *data = m->private; + struct snd_info_entry *entry = data->entry; + + if (data->wbuffer && entry->c.text.write) + entry->c.text.write(entry, data->wbuffer); + + single_release(inode, file); + kfree(data->rbuffer); + if (data->wbuffer) { + kfree(data->wbuffer->buffer); + kfree(data->wbuffer); } - return -ENXIO; + + module_put(entry->module); + kfree(data); + return 0; } -static const struct file_operations snd_info_entry_operations = +static const struct file_operations snd_info_text_entry_ops = { .owner = THIS_MODULE, - .llseek = snd_info_entry_llseek, - .read = snd_info_entry_read, - .write = snd_info_entry_write, - .poll = snd_info_entry_poll, - .unlocked_ioctl = snd_info_entry_ioctl, - .mmap = snd_info_entry_mmap, - .open = snd_info_entry_open, - .release = snd_info_entry_release, + .open = snd_info_text_entry_open, + .release = snd_info_text_entry_release, + .write = snd_info_text_entry_write, + .llseek = seq_lseek, + .read = seq_read, }; int __init snd_info_init(void) @@ -955,8 +877,13 @@ int snd_info_register(struct snd_info_entry * entry) return -ENOMEM; } } else { + const struct file_operations *ops; + if (entry->content == SNDRV_INFO_CONTENT_DATA) + ops = &snd_info_entry_operations; + else + ops = &snd_info_text_entry_ops; p = proc_create_data(entry->name, entry->mode, root, - &snd_info_entry_operations, entry); + ops, entry); if (!p) { mutex_unlock(&info_mutex); return -ENOMEM; -- cgit v1.2.3 From 886364f679342a381c9cb4a0b2588fb103bb6a22 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 17:54:25 +0200 Subject: ALSA: core: Fix possible memory leaks at error path in info.c Currently, snd_info_init() just returns an error without releasing the previously assigned resources at error path. The assigned proc and info entries have to be released properly. This patch covers it. While we are at it, refactor the code a bit, too. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/core/info.c | 62 +++++++++++++++++++++++++++---------------------------- 1 file changed, 31 insertions(+), 31 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 8c1275f0fcbd..9c6db5c24da7 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -446,6 +446,22 @@ static const struct file_operations snd_info_text_entry_ops = .read = seq_read, }; +static struct snd_info_entry *create_subdir(struct module *mod, + const char *name) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_module_entry(mod, name, NULL); + if (!entry) + return NULL; + entry->mode = S_IFDIR | S_IRUGO | S_IXUGO; + if (snd_info_register(entry) < 0) { + snd_info_free_entry(entry); + return NULL; + } + return entry; +} + int __init snd_info_init(void) { struct proc_dir_entry *p; @@ -455,36 +471,27 @@ int __init snd_info_init(void) return -ENOMEM; snd_proc_root = p; #ifdef CONFIG_SND_OSSEMUL - { - struct snd_info_entry *entry; - if ((entry = snd_info_create_module_entry(THIS_MODULE, "oss", NULL)) == NULL) - return -ENOMEM; - entry->mode = S_IFDIR | S_IRUGO | S_IXUGO; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - return -ENOMEM; - } - snd_oss_root = entry; - } + snd_oss_root = create_subdir(THIS_MODULE, "oss"); + if (!snd_oss_root) + goto error; #endif #if IS_ENABLED(CONFIG_SND_SEQUENCER) - { - struct snd_info_entry *entry; - if ((entry = snd_info_create_module_entry(THIS_MODULE, "seq", NULL)) == NULL) - return -ENOMEM; - entry->mode = S_IFDIR | S_IRUGO | S_IXUGO; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - return -ENOMEM; - } - snd_seq_root = entry; - } + snd_seq_root = create_subdir(THIS_MODULE, "seq"); + if (!snd_seq_root) + goto error; #endif snd_info_version_init(); snd_minor_info_init(); snd_minor_info_oss_init(); snd_card_info_init(); return 0; + + error: +#ifdef CONFIG_SND_OSSEMUL + snd_info_free_entry(snd_oss_root); +#endif + proc_remove(snd_proc_root); + return -ENOMEM; } int __exit snd_info_done(void) @@ -523,13 +530,9 @@ int snd_info_card_create(struct snd_card *card) return -ENXIO; sprintf(str, "card%i", card->number); - if ((entry = snd_info_create_module_entry(card->module, str, NULL)) == NULL) - return -ENOMEM; - entry->mode = S_IFDIR | S_IRUGO | S_IXUGO; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); + entry = create_subdir(card->module, str); + if (!entry) return -ENOMEM; - } card->proc_root = entry; return 0; } @@ -758,7 +761,6 @@ EXPORT_SYMBOL(snd_info_create_card_entry); static void snd_info_disconnect(struct snd_info_entry *entry) { struct list_head *p, *n; - struct proc_dir_entry *root; list_for_each_safe(p, n, &entry->children) { snd_info_disconnect(list_entry(p, struct snd_info_entry, list)); @@ -767,8 +769,6 @@ static void snd_info_disconnect(struct snd_info_entry *entry) if (! entry->p) return; list_del_init(&entry->list); - root = entry->parent == NULL ? snd_proc_root : entry->parent->p; - snd_BUG_ON(!root); proc_remove(entry->p); entry->p = NULL; } -- cgit v1.2.3 From c560a6797e3bec1e04f1f6f9f3c2135db0f5c8ee Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 18:26:38 +0200 Subject: ALSA: core: Remove child proc file elements recursively This patch changes the way to manage the resource release of proc files: namely, let snd_info_free_entry() freeing the whole children. This makes it us possible to drop the snd_device_*() management. Then snd_card_proc_new() becomes merely a wrapper to snd_info_create_card_entry(). Together with this change, now you need to call snd_info_free_entry() for a proc entry created via snd_card_proc_new(), while it was freed via snd_device_free() beforehand. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- include/sound/info.h | 9 ++++-- sound/core/info.c | 79 ++++++++-------------------------------------- sound/pci/hda/patch_hdmi.c | 2 +- 3 files changed, 21 insertions(+), 69 deletions(-) (limited to 'sound/core') diff --git a/include/sound/info.h b/include/sound/info.h index ff8962ebece5..3e2fda3c75ee 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -24,6 +24,7 @@ #include #include +#include /* buffer for information */ struct snd_info_buffer { @@ -146,8 +147,12 @@ void snd_info_card_id_change(struct snd_card *card); int snd_info_register(struct snd_info_entry *entry); /* for card drivers */ -int snd_card_proc_new(struct snd_card *card, const char *name, - struct snd_info_entry **entryp); +static inline int snd_card_proc_new(struct snd_card *card, const char *name, + struct snd_info_entry **entryp) +{ + *entryp = snd_info_create_card_entry(card, name, card->proc_root); + return *entryp ? 0 : -ENOMEM; +} static inline void snd_info_set_text_ops(struct snd_info_entry *entry, void *private_data, diff --git a/sound/core/info.c b/sound/core/info.c index 9c6db5c24da7..96451a130199 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -760,92 +760,39 @@ EXPORT_SYMBOL(snd_info_create_card_entry); static void snd_info_disconnect(struct snd_info_entry *entry) { - struct list_head *p, *n; + struct snd_info_entry *p, *n; - list_for_each_safe(p, n, &entry->children) { - snd_info_disconnect(list_entry(p, struct snd_info_entry, list)); - } - - if (! entry->p) + if (!entry->p) return; + list_for_each_entry_safe(p, n, &entry->children, list) + snd_info_disconnect(p); list_del_init(&entry->list); proc_remove(entry->p); entry->p = NULL; } -static int snd_info_dev_free_entry(struct snd_device *device) -{ - struct snd_info_entry *entry = device->device_data; - snd_info_free_entry(entry); - return 0; -} - -static int snd_info_dev_register_entry(struct snd_device *device) -{ - struct snd_info_entry *entry = device->device_data; - return snd_info_register(entry); -} - -/** - * snd_card_proc_new - create an info entry for the given card - * @card: the card instance - * @name: the file name - * @entryp: the pointer to store the new info entry - * - * Creates a new info entry and assigns it to the given card. - * Unlike snd_info_create_card_entry(), this function registers the - * info entry as an ALSA device component, so that it can be - * unregistered/released without explicit call. - * Also, you don't have to register this entry via snd_info_register(), - * since this will be registered by snd_card_register() automatically. - * - * The parent is assumed as card->proc_root. - * - * For releasing this entry, use snd_device_free() instead of - * snd_info_free_entry(). - * - * Return: Zero if successful, or a negative error code on failure. - */ -int snd_card_proc_new(struct snd_card *card, const char *name, - struct snd_info_entry **entryp) -{ - static struct snd_device_ops ops = { - .dev_free = snd_info_dev_free_entry, - .dev_register = snd_info_dev_register_entry, - /* disconnect is done via snd_info_card_disconnect() */ - }; - struct snd_info_entry *entry; - int err; - - entry = snd_info_create_card_entry(card, name, card->proc_root); - if (! entry) - return -ENOMEM; - if ((err = snd_device_new(card, SNDRV_DEV_INFO, entry, &ops)) < 0) { - snd_info_free_entry(entry); - return err; - } - if (entryp) - *entryp = entry; - return 0; -} - -EXPORT_SYMBOL(snd_card_proc_new); - /** * snd_info_free_entry - release the info entry * @entry: the info entry * - * Releases the info entry. Don't call this after registered. + * Releases the info entry. */ void snd_info_free_entry(struct snd_info_entry * entry) { - if (entry == NULL) + struct snd_info_entry *p, *n; + + if (!entry) return; if (entry->p) { mutex_lock(&info_mutex); snd_info_disconnect(entry); mutex_unlock(&info_mutex); } + + /* free all children at first */ + list_for_each_entry_safe(p, n, &entry->children, list) + snd_info_free_entry(p); + kfree(entry->name); if (entry->private_free) entry->private_free(entry); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 5f44f60a6389..6e7e0b85c3e3 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -592,7 +592,7 @@ static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index) static void eld_proc_free(struct hdmi_spec_per_pin *per_pin) { if (!per_pin->codec->bus->shutdown && per_pin->proc_entry) { - snd_device_free(per_pin->codec->card, per_pin->proc_entry); + snd_info_free_entry(per_pin->proc_entry); per_pin->proc_entry = NULL; } } -- cgit v1.2.3 From 644dbd64dcf0939e9838132a72d2ec9489496eb8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 22:14:41 +0200 Subject: ALSA: core: Manage asound root directory with snd_info_entry Using snd_info_entry for /proc/asound root makes easier to release the all children, too. Further cleanups will follow. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/core/info.c | 52 ++++++++++++++-------------------------------------- 1 file changed, 14 insertions(+), 38 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 96451a130199..55c626eeb061 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -78,14 +78,13 @@ struct snd_info_private_data { }; static int snd_info_version_init(void); -static int snd_info_version_done(void); static void snd_info_disconnect(struct snd_info_entry *entry); /* */ -static struct proc_dir_entry *snd_proc_root; +static struct snd_info_entry *snd_proc_root; struct snd_info_entry *snd_seq_root; EXPORT_SYMBOL(snd_seq_root); @@ -462,14 +461,17 @@ static struct snd_info_entry *create_subdir(struct module *mod, return entry; } +static struct snd_info_entry *snd_info_create_entry(const char *name); + int __init snd_info_init(void) { - struct proc_dir_entry *p; - - p = proc_mkdir("asound", NULL); - if (p == NULL) + snd_proc_root = snd_info_create_entry("asound"); + if (!snd_proc_root) return -ENOMEM; - snd_proc_root = p; + snd_proc_root->mode = S_IFDIR | S_IRUGO | S_IXUGO; + snd_proc_root->p = proc_mkdir("asound", NULL); + if (!snd_proc_root->p) + goto error; #ifdef CONFIG_SND_OSSEMUL snd_oss_root = create_subdir(THIS_MODULE, "oss"); if (!snd_oss_root) @@ -487,10 +489,7 @@ int __init snd_info_init(void) return 0; error: -#ifdef CONFIG_SND_OSSEMUL - snd_info_free_entry(snd_oss_root); -#endif - proc_remove(snd_proc_root); + snd_info_free_entry(snd_proc_root); return -ENOMEM; } @@ -499,24 +498,10 @@ int __exit snd_info_done(void) snd_card_info_done(); snd_minor_info_oss_done(); snd_minor_info_done(); - snd_info_version_done(); - if (snd_proc_root) { -#if IS_ENABLED(CONFIG_SND_SEQUENCER) - snd_info_free_entry(snd_seq_root); -#endif -#ifdef CONFIG_SND_OSSEMUL - snd_info_free_entry(snd_oss_root); -#endif - proc_remove(snd_proc_root); - } + snd_info_free_entry(snd_proc_root); return 0; } -/* - - */ - - /* * create a card proc file * called from init.c @@ -551,7 +536,7 @@ int snd_info_card_register(struct snd_card *card) if (!strcmp(card->id, card->proc_root->name)) return 0; - p = proc_symlink(card->id, snd_proc_root, card->proc_root->name); + p = proc_symlink(card->id, snd_proc_root->p, card->proc_root->name); if (p == NULL) return -ENOMEM; card->proc_root_link = p; @@ -570,7 +555,7 @@ void snd_info_card_id_change(struct snd_card *card) } if (strcmp(card->id, card->proc_root->name)) card->proc_root_link = proc_symlink(card->id, - snd_proc_root, + snd_proc_root->p, card->proc_root->name); mutex_unlock(&info_mutex); } @@ -815,7 +800,7 @@ int snd_info_register(struct snd_info_entry * entry) if (snd_BUG_ON(!entry)) return -ENXIO; - root = entry->parent == NULL ? snd_proc_root : entry->parent->p; + root = entry->parent == NULL ? snd_proc_root->p : entry->parent->p; mutex_lock(&info_mutex); if (S_ISDIR(entry->mode)) { p = proc_mkdir_mode(entry->name, entry->mode, root); @@ -850,8 +835,6 @@ EXPORT_SYMBOL(snd_info_register); */ -static struct snd_info_entry *snd_info_version_entry; - static void snd_info_version_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { snd_iprintf(buffer, @@ -871,13 +854,6 @@ static int __init snd_info_version_init(void) snd_info_free_entry(entry); return -ENOMEM; } - snd_info_version_entry = entry; - return 0; -} - -static int __exit snd_info_version_done(void) -{ - snd_info_free_entry(snd_info_version_entry); return 0; } -- cgit v1.2.3 From b046d244e2290e3d114af2e91503ee3d08fc605a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 21:33:41 +0200 Subject: ALSA: core: Remove superfluous exit calls for proc entries Since each proc entry is freed automatically by the parent, we don't have to take care of its life cycle any longer. This allows us to reduce a few more lines of codes. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- include/sound/core.h | 4 ---- sound/core/info.c | 3 --- sound/core/init.c | 17 ----------------- sound/core/sound.c | 10 ---------- sound/core/sound_oss.c | 14 +------------- 5 files changed, 1 insertion(+), 47 deletions(-) (limited to 'sound/core') diff --git a/include/sound/core.h b/include/sound/core.h index b12931f513f4..cdfecafff0f4 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -224,16 +224,13 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type); #endif int snd_minor_info_init(void); -int snd_minor_info_done(void); /* sound_oss.c */ #ifdef CONFIG_SND_OSSEMUL int snd_minor_info_oss_init(void); -int snd_minor_info_oss_done(void); #else static inline int snd_minor_info_oss_init(void) { return 0; } -static inline int snd_minor_info_oss_done(void) { return 0; } #endif /* memory.c */ @@ -262,7 +259,6 @@ int snd_card_free_when_closed(struct snd_card *card); void snd_card_set_id(struct snd_card *card, const char *id); int snd_card_register(struct snd_card *card); int snd_card_info_init(void); -int snd_card_info_done(void); int snd_card_add_dev_attr(struct snd_card *card, const struct attribute_group *group); int snd_component_add(struct snd_card *card, const char *component); diff --git a/sound/core/info.c b/sound/core/info.c index 55c626eeb061..339f90a3aa29 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -495,9 +495,6 @@ int __init snd_info_init(void) int __exit snd_info_done(void) { - snd_card_info_done(); - snd_minor_info_oss_done(); - snd_minor_info_done(); snd_info_free_entry(snd_proc_root); return 0; } diff --git a/sound/core/init.c b/sound/core/init.c index 04734e047bfe..0af34fac0499 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -783,8 +783,6 @@ int snd_card_register(struct snd_card *card) EXPORT_SYMBOL(snd_card_register); #ifdef CONFIG_PROC_FS -static struct snd_info_entry *snd_card_info_entry; - static void snd_card_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -810,7 +808,6 @@ static void snd_card_info_read(struct snd_info_entry *entry, } #ifdef CONFIG_SND_OSSEMUL - void snd_card_info_read_oss(struct snd_info_buffer *buffer) { int idx, count; @@ -832,7 +829,6 @@ void snd_card_info_read_oss(struct snd_info_buffer *buffer) #endif #ifdef MODULE -static struct snd_info_entry *snd_card_module_info_entry; static void snd_card_module_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -861,7 +857,6 @@ int __init snd_card_info_init(void) snd_info_free_entry(entry); return -ENOMEM; } - snd_card_info_entry = entry; #ifdef MODULE entry = snd_info_create_module_entry(THIS_MODULE, "modules", NULL); @@ -869,23 +864,11 @@ int __init snd_card_info_init(void) entry->c.text.read = snd_card_module_info_read; if (snd_info_register(entry) < 0) snd_info_free_entry(entry); - else - snd_card_module_info_entry = entry; } #endif return 0; } - -int __exit snd_card_info_done(void) -{ - snd_info_free_entry(snd_card_info_entry); -#ifdef MODULE - snd_info_free_entry(snd_card_module_info_entry); -#endif - return 0; -} - #endif /* CONFIG_PROC_FS */ /** diff --git a/sound/core/sound.c b/sound/core/sound.c index 5fc93d00572a..d584944c8fe5 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -334,9 +334,6 @@ EXPORT_SYMBOL(snd_unregister_device); /* * INFO PART */ - -static struct snd_info_entry *snd_minor_info_entry; - static const char *snd_device_type_name(int type) { switch (type) { @@ -396,13 +393,6 @@ int __init snd_minor_info_init(void) entry = NULL; } } - snd_minor_info_entry = entry; - return 0; -} - -int __exit snd_minor_info_done(void) -{ - snd_info_free_entry(snd_minor_info_entry); return 0; } #endif /* CONFIG_PROC_FS */ diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 573a65eb2b79..5fc3c6534225 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -214,9 +214,6 @@ EXPORT_SYMBOL(snd_unregister_oss_device); */ #ifdef CONFIG_PROC_FS - -static struct snd_info_entry *snd_minor_info_oss_entry; - static const char *snd_oss_device_type_name(int type) { switch (type) { @@ -265,18 +262,9 @@ int __init snd_minor_info_oss_init(void) entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root); if (entry) { entry->c.text.read = snd_minor_info_oss_read; - if (snd_info_register(entry) < 0) { + if (snd_info_register(entry) < 0) snd_info_free_entry(entry); - entry = NULL; - } } - snd_minor_info_oss_entry = entry; - return 0; -} - -int __exit snd_minor_info_oss_done(void) -{ - snd_info_free_entry(snd_minor_info_oss_entry); return 0; } #endif /* CONFIG_PROC_FS */ -- cgit v1.2.3 From b591b6e9e99017137888e2e397f0ddd8adb77c5d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 22 Apr 2015 22:29:10 +0200 Subject: ALSA: core: Don't ignore errors at creating proc files So far we've ignored the errors at creating proc files in many places. But they should be rather treated seriously. Also, by assuring the error handling, we can get rid of superfluous snd_info_free_entry() calls as they will be removed by the parent in the caller side. This patch fixes the missing error checks and reduces the superfluous free calls. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/core/info.c | 15 ++++++--------- sound/core/init.c | 16 +++++++--------- sound/core/seq/seq_info.c | 17 ++++++++++++++--- sound/core/sound.c | 12 ++++-------- sound/core/sound_oss.c | 10 ++++------ 5 files changed, 35 insertions(+), 35 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 339f90a3aa29..4169062fabf5 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -482,10 +482,11 @@ int __init snd_info_init(void) if (!snd_seq_root) goto error; #endif - snd_info_version_init(); - snd_minor_info_init(); - snd_minor_info_oss_init(); - snd_card_info_init(); + if (snd_info_version_init() < 0 || + snd_minor_info_init() < 0 || + snd_minor_info_oss_init() < 0 || + snd_card_info_init() < 0) + goto error; return 0; error: @@ -847,11 +848,7 @@ static int __init snd_info_version_init(void) if (entry == NULL) return -ENOMEM; entry->c.text.read = snd_info_version_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - return -ENOMEM; - } - return 0; + return snd_info_register(entry); /* freed in error path */ } #endif /* CONFIG_PROC_FS */ diff --git a/sound/core/init.c b/sound/core/init.c index 0af34fac0499..769a783757ff 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -853,18 +853,16 @@ int __init snd_card_info_init(void) if (! entry) return -ENOMEM; entry->c.text.read = snd_card_info_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - return -ENOMEM; - } + if (snd_info_register(entry) < 0) + return -ENOMEM; /* freed in error path */ #ifdef MODULE entry = snd_info_create_module_entry(THIS_MODULE, "modules", NULL); - if (entry) { - entry->c.text.read = snd_card_module_info_read; - if (snd_info_register(entry) < 0) - snd_info_free_entry(entry); - } + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_card_module_info_read; + if (snd_info_register(entry) < 0) + return -ENOMEM; /* freed in error path */ #endif return 0; diff --git a/sound/core/seq/seq_info.c b/sound/core/seq/seq_info.c index acf7769419f0..d3c65e780e9e 100644 --- a/sound/core/seq/seq_info.c +++ b/sound/core/seq/seq_info.c @@ -51,6 +51,13 @@ create_info_entry(char *name, void (*read)(struct snd_info_entry *, return entry; } +static void free_info_entries(void) +{ + snd_info_free_entry(queues_entry); + snd_info_free_entry(clients_entry); + snd_info_free_entry(timer_entry); +} + /* create all our /proc entries */ int __init snd_seq_info_init(void) { @@ -59,14 +66,18 @@ int __init snd_seq_info_init(void) clients_entry = create_info_entry("clients", snd_seq_info_clients_read); timer_entry = create_info_entry("timer", snd_seq_info_timer_read); + if (!queues_entry || !clients_entry || !timer_entry) + goto error; return 0; + + error: + free_info_entries(); + return -ENOMEM; } int __exit snd_seq_info_done(void) { - snd_info_free_entry(queues_entry); - snd_info_free_entry(clients_entry); - snd_info_free_entry(timer_entry); + free_info_entries(); return 0; } #endif diff --git a/sound/core/sound.c b/sound/core/sound.c index d584944c8fe5..8fc402e4ff35 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -386,14 +386,10 @@ int __init snd_minor_info_init(void) struct snd_info_entry *entry; entry = snd_info_create_module_entry(THIS_MODULE, "devices", NULL); - if (entry) { - entry->c.text.read = snd_minor_info_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } - } - return 0; + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_minor_info_read; + return snd_info_register(entry); /* freed in error path */ } #endif /* CONFIG_PROC_FS */ diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 5fc3c6534225..56d2f409f1ef 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -260,12 +260,10 @@ int __init snd_minor_info_oss_init(void) struct snd_info_entry *entry; entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root); - if (entry) { - entry->c.text.read = snd_minor_info_oss_read; - if (snd_info_register(entry) < 0) - snd_info_free_entry(entry); - } - return 0; + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_minor_info_oss_read; + return snd_info_register(entry); /* freed in error path */ } #endif /* CONFIG_PROC_FS */ -- cgit v1.2.3 From 85d143180738475b89d76b18409c3125b01464e1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 23 Apr 2015 10:34:34 +0200 Subject: ALSA: core: Build conditionally and remove superfluous ifdefs Minor cleanups of Makefile to build some codes conditionally so that a few ifdefs can be reduced. Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/core/Makefile | 8 ++++++-- sound/core/info.c | 8 -------- sound/core/info_oss.c | 4 ---- sound/core/seq/Makefile | 3 ++- sound/core/seq/seq_info.c | 2 -- sound/core/sound_oss.c | 8 -------- 6 files changed, 8 insertions(+), 25 deletions(-) (limited to 'sound/core') diff --git a/sound/core/Makefile b/sound/core/Makefile index 4daf2f58261c..ae1d32b084fd 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -3,9 +3,13 @@ # Copyright (c) 1999,2001 by Jaroslav Kysela # -snd-y := sound.o init.o memory.o info.o control.o misc.o device.o +snd-y := sound.o init.o memory.o control.o misc.o device.o +ifneq ($(CONFIG_PROC_FS),) +snd-y += info.o +snd-$(CONFIG_SND_OSSEMUL) += info_oss.o +endif snd-$(CONFIG_ISA_DMA_API) += isadma.o -snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o +snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o snd-$(CONFIG_SND_VMASTER) += vmaster.o snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o snd-$(CONFIG_SND_JACK) += jack.o diff --git a/sound/core/info.c b/sound/core/info.c index 4169062fabf5..f8bdd9b6f322 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -33,12 +33,6 @@ #include #include -/* - * - */ - -#ifdef CONFIG_PROC_FS - int snd_info_check_reserved_words(const char *str) { static char *reserved[] = @@ -850,5 +844,3 @@ static int __init snd_info_version_init(void) entry->c.text.read = snd_info_version_read; return snd_info_register(entry); /* freed in error path */ } - -#endif /* CONFIG_PROC_FS */ diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c index 83c29dbff9c0..bd4d2c6233c2 100644 --- a/sound/core/info_oss.c +++ b/sound/core/info_oss.c @@ -29,8 +29,6 @@ #include #include -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) - /* * OSS compatible part */ @@ -134,5 +132,3 @@ int snd_info_minor_unregister(void) snd_sndstat_proc_entry = NULL; return 0; } - -#endif /* CONFIG_SND_OSSEMUL */ diff --git a/sound/core/seq/Makefile b/sound/core/seq/Makefile index 941f64a853eb..b29ffe835205 100644 --- a/sound/core/seq/Makefile +++ b/sound/core/seq/Makefile @@ -6,7 +6,8 @@ snd-seq-device-objs := seq_device.o snd-seq-objs := seq.o seq_lock.o seq_clientmgr.o seq_memory.o seq_queue.o \ seq_fifo.o seq_prioq.o seq_timer.o \ - seq_system.o seq_ports.o seq_info.o + seq_system.o seq_ports.o +snd-seq-$(CONFIG_PROC_FS) += seq_info.o snd-seq-midi-objs := seq_midi.o snd-seq-midi-emul-objs := seq_midi_emul.o snd-seq-midi-event-objs := seq_midi_event.o diff --git a/sound/core/seq/seq_info.c b/sound/core/seq/seq_info.c index d3c65e780e9e..97015447b9b3 100644 --- a/sound/core/seq/seq_info.c +++ b/sound/core/seq/seq_info.c @@ -27,7 +27,6 @@ #include "seq_clientmgr.h" #include "seq_timer.h" -#ifdef CONFIG_PROC_FS static struct snd_info_entry *queues_entry; static struct snd_info_entry *clients_entry; static struct snd_info_entry *timer_entry; @@ -80,4 +79,3 @@ int __exit snd_seq_info_done(void) free_info_entries(); return 0; } -#endif diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 56d2f409f1ef..86e2d91dd375 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -19,12 +19,6 @@ * */ -#ifdef CONFIG_SND_OSSEMUL - -#if !IS_ENABLED(CONFIG_SOUND) -#error "Enable the OSS soundcore multiplexer (CONFIG_SOUND) in the kernel." -#endif - #include #include #include @@ -266,5 +260,3 @@ int __init snd_minor_info_oss_init(void) return snd_info_register(entry); /* freed in error path */ } #endif /* CONFIG_PROC_FS */ - -#endif /* CONFIG_SND_OSSEMUL */ -- cgit v1.2.3 From a0dca822e923e605dbdc2f6ed4fcd96b74df9258 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 23 Apr 2015 10:56:21 +0200 Subject: ALSA: core: Clean up OSS proc file management A few minor cleanups: - Move the call of snd_info_minor_register() into snd_info_init() so that we can call all proc-related stuff in a shot - Add missing __init prefix to snd_info_minor_register() - Return an error properly from snd_oss_info_register() - Drop snd_info_minor_unregister() that is superfluous now Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- include/sound/info.h | 4 +--- sound/core/info.c | 3 ++- sound/core/info_oss.c | 25 +++++++------------------ sound/core/sound.c | 2 -- 4 files changed, 10 insertions(+), 24 deletions(-) (limited to 'sound/core') diff --git a/include/sound/info.h b/include/sound/info.h index 3e2fda3c75ee..16269951bafc 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -94,10 +94,8 @@ struct snd_info_entry { #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) int snd_info_minor_register(void); -int snd_info_minor_unregister(void); #else -#define snd_info_minor_register() /* NOP */ -#define snd_info_minor_unregister() /* NOP */ +#define snd_info_minor_register() 0 #endif diff --git a/sound/core/info.c b/sound/core/info.c index f8bdd9b6f322..c8a413d6cc9b 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -479,7 +479,8 @@ int __init snd_info_init(void) if (snd_info_version_init() < 0 || snd_minor_info_init() < 0 || snd_minor_info_oss_init() < 0 || - snd_card_info_init() < 0) + snd_card_info_init() < 0 || + snd_info_minor_register() < 0) goto error; return 0; diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c index bd4d2c6233c2..1478c8dfd473 100644 --- a/sound/core/info_oss.c +++ b/sound/core/info_oss.c @@ -35,7 +35,6 @@ static DEFINE_MUTEX(strings); static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT]; -static struct snd_info_entry *snd_sndstat_proc_entry; int snd_oss_info_register(int dev, int num, char *string) { @@ -110,25 +109,15 @@ static void snd_sndstat_proc_read(struct snd_info_entry *entry, snd_sndstat_show_strings(buffer, "Mixers", SNDRV_OSS_INFO_DEV_MIXERS); } -int snd_info_minor_register(void) +int __init snd_info_minor_register(void) { struct snd_info_entry *entry; memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings)); - if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) { - entry->c.text.read = snd_sndstat_proc_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } - } - snd_sndstat_proc_entry = entry; - return 0; -} - -int snd_info_minor_unregister(void) -{ - snd_info_free_entry(snd_sndstat_proc_entry); - snd_sndstat_proc_entry = NULL; - return 0; + entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", + snd_oss_root); + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_sndstat_proc_read; + return snd_info_register(entry); /* freed in error path */ } diff --git a/sound/core/sound.c b/sound/core/sound.c index 8fc402e4ff35..e5d37bd7c226 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -409,7 +409,6 @@ static int __init alsa_sound_init(void) unregister_chrdev(major, "alsa"); return -ENOMEM; } - snd_info_minor_register(); #ifndef MODULE pr_info("Advanced Linux Sound Architecture Driver Initialized.\n"); #endif @@ -418,7 +417,6 @@ static int __init alsa_sound_init(void) static void __exit alsa_sound_exit(void) { - snd_info_minor_unregister(); snd_info_done(); unregister_chrdev(major, "alsa"); } -- cgit v1.2.3 From 9058cbe1eed29381f84dec9f96980f5a4ea1025f Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Mon, 27 Apr 2015 21:20:56 +0800 Subject: ALSA: jack: implement kctl creating for jack devices Currently the ALSA jack core registers only input devices for each jack registered. These jack input devices are not readable by userspace devices that run as non root. This patch series will implement kctls inside the core jack part, including kctls creating, status changing report, for both HD-Audio and ASoC jack. This allows non root userspace to read jack status and act on it. This patch adds a new API called snd_jack_add_new_kctl(), which will create a kcontrol, add it to the card, and also attach it to the jack kctl list. This patch also initialises the jack kctl list after jack is newed, and reports kctl status when jack insertion/removal events occur. snd_jack_new() is updated in the following patches to also support creating phantom jacks and jack kcontrols. We then remove these duplicated features from HDA jack and have jack kctls handled by core throughout HDA and ASoC. Signed-off-by: Liam Girdwood Modified-by: Jie Yang Signed-off-by: Jie Yang Reveiwed-by: Mark Brown Signed-off-by: Takashi Iwai --- include/sound/jack.h | 9 ++++- sound/core/Kconfig | 3 -- sound/core/Makefile | 3 +- sound/core/jack.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++ sound/pci/hda/Kconfig | 2 +- 5 files changed, 103 insertions(+), 7 deletions(-) (limited to 'sound/core') diff --git a/include/sound/jack.h b/include/sound/jack.h index 218235030ebc..433b13b89125 100644 --- a/include/sound/jack.h +++ b/include/sound/jack.h @@ -73,6 +73,8 @@ enum snd_jack_types { struct snd_jack { struct input_dev *input_dev; + struct list_head kctl_list; + struct snd_card *card; int registered; int type; const char *id; @@ -86,6 +88,7 @@ struct snd_jack { int snd_jack_new(struct snd_card *card, const char *id, int type, struct snd_jack **jack); +int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask); void snd_jack_set_parent(struct snd_jack *jack, struct device *parent); int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type, int keytype); @@ -93,13 +96,17 @@ int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type, void snd_jack_report(struct snd_jack *jack, int status); #else - static inline int snd_jack_new(struct snd_card *card, const char *id, int type, struct snd_jack **jack) { return 0; } +static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask) +{ + return 0; +} + static inline void snd_jack_set_parent(struct snd_jack *jack, struct device *parent) { diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 313f22e9d929..63cc2e967099 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -221,9 +221,6 @@ config SND_PCM_XRUN_DEBUG config SND_VMASTER bool -config SND_KCTL_JACK - bool - config SND_DMA_SGBUF def_bool y depends on X86 diff --git a/sound/core/Makefile b/sound/core/Makefile index 4daf2f58261c..e041dc25f2c8 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -7,8 +7,7 @@ snd-y := sound.o init.o memory.o info.o control.o misc.o device.o snd-$(CONFIG_ISA_DMA_API) += isadma.o snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o snd-$(CONFIG_SND_VMASTER) += vmaster.o -snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o -snd-$(CONFIG_SND_JACK) += jack.o +snd-$(CONFIG_SND_JACK) += ctljack.o jack.o snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ pcm_memory.o memalloc.o diff --git a/sound/core/jack.c b/sound/core/jack.c index 8658578eb584..db69ecc23651 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -24,6 +24,13 @@ #include #include #include +#include + +struct snd_jack_kctl { + struct snd_kcontrol *kctl; + struct list_head list; /* list of controls belong to the same jack */ + unsigned int mask_bits; /* only masked status bits are reported via kctl */ +}; static int jack_switch_types[SND_JACK_SWITCH_TYPES] = { SW_HEADPHONE_INSERT, @@ -54,7 +61,13 @@ static int snd_jack_dev_disconnect(struct snd_device *device) static int snd_jack_dev_free(struct snd_device *device) { struct snd_jack *jack = device->device_data; + struct snd_card *card = device->card; + struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl; + list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) { + list_del_init(&jack_kctl->list); + snd_ctl_remove(card, jack_kctl->kctl); + } if (jack->private_free) jack->private_free(jack); @@ -100,6 +113,77 @@ static int snd_jack_dev_register(struct snd_device *device) return err; } +static void snd_jack_kctl_private_free(struct snd_kcontrol *kctl) +{ + struct snd_jack_kctl *jack_kctl; + + jack_kctl = kctl->private_data; + if (jack_kctl) { + list_del(&jack_kctl->list); + kfree(jack_kctl); + } +} + +static void snd_jack_kctl_add(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl) +{ + list_add_tail(&jack_kctl->list, &jack->kctl_list); +} + +static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card *card, const char *name, unsigned int mask) +{ + struct snd_kcontrol *kctl; + struct snd_jack_kctl *jack_kctl; + int err; + + kctl = snd_kctl_jack_new(name, 0, card); + if (!kctl) + return NULL; + + err = snd_ctl_add(card, kctl); + if (err < 0) + return NULL; + + jack_kctl = kzalloc(sizeof(*jack_kctl), GFP_KERNEL); + + if (!jack_kctl) + goto error; + + jack_kctl->kctl = kctl; + jack_kctl->mask_bits = mask; + + kctl->private_data = jack_kctl; + kctl->private_free = snd_jack_kctl_private_free; + + return jack_kctl; +error: + snd_ctl_free_one(kctl); + return NULL; +} + +/** + * snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack + * @jack: the jack instance which the kctl will attaching to + * @name: the name for the snd_kcontrol object + * @mask: a bitmask of enum snd_jack_type values that can be detected + * by this snd_jack_kctl object. + * + * Creates a new snd_kcontrol object and adds it to the jack kctl_list. + * + * Return: Zero if successful, or a negative error code on failure. + */ +int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask) +{ + struct snd_jack_kctl *jack_kctl; + + jack_kctl = snd_jack_kctl_new(jack->card, name, mask); + if (!jack_kctl) + return -ENOMEM; + + snd_jack_kctl_add(jack, jack_kctl); + return 0; +} +EXPORT_SYMBOL(snd_jack_add_new_kctl); + /** * snd_jack_new - Create a new jack * @card: the card instance @@ -150,6 +234,9 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, if (err < 0) goto fail_input; + jack->card = card; + INIT_LIST_HEAD(&jack->kctl_list); + *jjack = jack; return 0; @@ -230,6 +317,7 @@ EXPORT_SYMBOL(snd_jack_set_key); */ void snd_jack_report(struct snd_jack *jack, int status) { + struct snd_jack_kctl *jack_kctl; int i; if (!jack) @@ -252,6 +340,11 @@ void snd_jack_report(struct snd_jack *jack, int status) } input_sync(jack->input_dev); + + list_for_each_entry(jack_kctl, &jack->kctl_list, list) + snd_kctl_jack_report(jack->card, jack_kctl->kctl, + status & jack_kctl->mask_bits); + } EXPORT_SYMBOL(snd_jack_report); diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index a5ed1c181784..4d3d4747e55a 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -4,7 +4,7 @@ config SND_HDA tristate select SND_PCM select SND_VMASTER - select SND_KCTL_JACK + select SND_JACK select SND_HDA_CORE config SND_HDA_INTEL -- cgit v1.2.3 From b8dd086674cfbfc246a5b9d7d7ff37f62350a878 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Mon, 27 Apr 2015 21:20:57 +0800 Subject: ALSA: Jack: handle jack embedded kcontrol creating within ctljack This patch adds a static method get_available_index() to allocate the index of new jack kcontrols and also adds jack_kctl_name_gen() which is used to ensure compatibility with jack naming by removing " Jack" from some incorrectly passed names. Signed-off-by: Jie Yang Signed-off-by: Takashi Iwai --- include/sound/control.h | 2 +- sound/core/ctljack.c | 37 ++++++++++++++++++++++++++++++++++--- sound/core/jack.c | 2 +- sound/pci/hda/hda_jack.c | 2 +- 4 files changed, 37 insertions(+), 6 deletions(-) (limited to 'sound/core') diff --git a/include/sound/control.h b/include/sound/control.h index 95aad6d3fd1a..f50e2e918ceb 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -252,7 +252,7 @@ void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); * Helper functions for jack-detection controls */ struct snd_kcontrol * -snd_kctl_jack_new(const char *name, int idx, void *private_data); +snd_kctl_jack_new(const char *name, void *private_data, struct snd_card *card); void snd_kctl_jack_report(struct snd_card *card, struct snd_kcontrol *kctl, bool status); diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c index e4b38fbe51da..df7c6cd63c4a 100644 --- a/sound/core/ctljack.c +++ b/sound/core/ctljack.c @@ -31,15 +31,46 @@ static struct snd_kcontrol_new jack_detect_kctl = { .get = jack_detect_kctl_get, }; +static int get_available_index(struct snd_card *card, const char *name) +{ + struct snd_ctl_elem_id sid; + + memset(&sid, 0, sizeof(sid)); + + sid.index = 0; + sid.iface = SNDRV_CTL_ELEM_IFACE_CARD; + strlcpy(sid.name, name, sizeof(sid.name)); + + while (snd_ctl_find_id(card, &sid)) + sid.index++; + + return sid.index; +} + +static void jack_kctl_name_gen(char *name, const char *src_name, int size) +{ + size_t count = strlen(src_name); + bool need_cat = true; + + /* remove redundant " Jack" from src_name */ + if (count >= 5) + need_cat = strncmp(&src_name[count - 5], " Jack", 5) ? true : false; + + snprintf(name, size, need_cat ? "%s Jack" : "%s", src_name); + +} + struct snd_kcontrol * -snd_kctl_jack_new(const char *name, int idx, void *private_data) +snd_kctl_jack_new(const char *name, void *private_data, struct snd_card *card) { struct snd_kcontrol *kctl; + kctl = snd_ctl_new1(&jack_detect_kctl, private_data); if (!kctl) return NULL; - snprintf(kctl->id.name, sizeof(kctl->id.name), "%s Jack", name); - kctl->id.index = idx; + + jack_kctl_name_gen(kctl->id.name, name, sizeof(kctl->id.name)); + kctl->id.index = get_available_index(card, name); kctl->private_value = 0; return kctl; } diff --git a/sound/core/jack.c b/sound/core/jack.c index db69ecc23651..067d37d14e64 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -135,7 +135,7 @@ static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card *card, const cha struct snd_jack_kctl *jack_kctl; int err; - kctl = snd_kctl_jack_new(name, 0, card); + kctl = snd_kctl_jack_new(name, card, card); if (!kctl) return NULL; diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c index d7cfe7b8c32b..05b49aa8af6c 100644 --- a/sound/pci/hda/hda_jack.c +++ b/sound/pci/hda/hda_jack.c @@ -402,7 +402,7 @@ static int __snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, return 0; if (jack->kctl) return 0; /* already created */ - kctl = snd_kctl_jack_new(name, idx, codec); + kctl = snd_kctl_jack_new(name, codec, codec->card); if (!kctl) return -ENOMEM; err = snd_hda_ctl_add(codec, nid, kctl); -- cgit v1.2.3 From 4e3f0dc65883cac95807549b2f7a3ac183686bcb Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Mon, 27 Apr 2015 21:20:58 +0800 Subject: ALSA: jack: extend snd_jack_new to support phantom jack Dont create input devices for phantom jacks. Here, we extend snd_jack_new() to support phantom jack creating: pass in a bool param for [non-]phantom flag, and a bool param initial_jack to indicate whether we need to create a kctl at this stage. We can also add a kctl to the jack after its created meaning we can now integrate the HDA and ASoC jacks. Signed-off-by: Jie Yang Signed-off-by: Takashi Iwai --- include/sound/jack.h | 4 ++-- sound/core/jack.c | 40 ++++++++++++++++++++++++++++------------ sound/pci/hda/hda_jack.c | 2 +- sound/pci/oxygen/xonar_wm87x6.c | 2 +- sound/soc/soc-jack.c | 2 +- 5 files changed, 33 insertions(+), 17 deletions(-) (limited to 'sound/core') diff --git a/include/sound/jack.h b/include/sound/jack.h index 433b13b89125..23bede121c78 100644 --- a/include/sound/jack.h +++ b/include/sound/jack.h @@ -87,7 +87,7 @@ struct snd_jack { #ifdef CONFIG_SND_JACK int snd_jack_new(struct snd_card *card, const char *id, int type, - struct snd_jack **jack); + struct snd_jack **jack, bool initial_kctl, bool phantom_jack); int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask); void snd_jack_set_parent(struct snd_jack *jack, struct device *parent); int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type, @@ -97,7 +97,7 @@ void snd_jack_report(struct snd_jack *jack, int status); #else static inline int snd_jack_new(struct snd_card *card, const char *id, int type, - struct snd_jack **jack) + struct snd_jack **jack, bool initial_kctl, bool phantom_jack) { return 0; } diff --git a/sound/core/jack.c b/sound/core/jack.c index 067d37d14e64..b34187b072ea 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -191,6 +191,8 @@ EXPORT_SYMBOL(snd_jack_add_new_kctl); * @type: a bitmask of enum snd_jack_type values that can be detected by * this jack * @jjack: Used to provide the allocated jack object to the caller. + * @initial_kctl: if true, create a kcontrol and add it to the jack list. + * @phantom_jack: Don't create a input device for phantom jacks. * * Creates a new jack object. * @@ -198,9 +200,10 @@ EXPORT_SYMBOL(snd_jack_add_new_kctl); * On success @jjack will be initialised. */ int snd_jack_new(struct snd_card *card, const char *id, int type, - struct snd_jack **jjack) + struct snd_jack **jjack, bool initial_kctl, bool phantom_jack) { struct snd_jack *jack; + struct snd_jack_kctl *jack_kctl = NULL; int err; int i; static struct snd_device_ops ops = { @@ -209,26 +212,36 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, .dev_disconnect = snd_jack_dev_disconnect, }; + if (initial_kctl) { + jack_kctl = snd_jack_kctl_new(card, id, type); + if (!jack_kctl) + return -ENOMEM; + } + jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL); if (jack == NULL) return -ENOMEM; jack->id = kstrdup(id, GFP_KERNEL); - jack->input_dev = input_allocate_device(); - if (jack->input_dev == NULL) { - err = -ENOMEM; - goto fail_input; - } + /* don't creat input device for phantom jack */ + if (!phantom_jack) { + jack->input_dev = input_allocate_device(); + if (jack->input_dev == NULL) { + err = -ENOMEM; + goto fail_input; + } - jack->input_dev->phys = "ALSA"; + jack->input_dev->phys = "ALSA"; - jack->type = type; + jack->type = type; - for (i = 0; i < SND_JACK_SWITCH_TYPES; i++) - if (type & (1 << i)) - input_set_capability(jack->input_dev, EV_SW, - jack_switch_types[i]); + for (i = 0; i < SND_JACK_SWITCH_TYPES; i++) + if (type & (1 << i)) + input_set_capability(jack->input_dev, EV_SW, + jack_switch_types[i]); + + } err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops); if (err < 0) @@ -237,6 +250,9 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, jack->card = card; INIT_LIST_HEAD(&jack->kctl_list); + if (initial_kctl) + snd_jack_kctl_add(jack, jack_kctl); + *jjack = jack; return 0; diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c index 05b49aa8af6c..16281c69bcd6 100644 --- a/sound/pci/hda/hda_jack.c +++ b/sound/pci/hda/hda_jack.c @@ -417,7 +417,7 @@ static int __snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, if (!phantom_jack) { jack->type = get_input_jack_type(codec, nid); err = snd_jack_new(codec->card, name, jack->type, - &jack->jack); + &jack->jack, false, false); if (err < 0) return err; jack->jack->private_data = jack; diff --git a/sound/pci/oxygen/xonar_wm87x6.c b/sound/pci/oxygen/xonar_wm87x6.c index 6ce68604c25e..90ac479f389f 100644 --- a/sound/pci/oxygen/xonar_wm87x6.c +++ b/sound/pci/oxygen/xonar_wm87x6.c @@ -286,7 +286,7 @@ static void xonar_ds_init(struct oxygen *chip) xonar_enable_output(chip); snd_jack_new(chip->card, "Headphone", - SND_JACK_HEADPHONE, &data->hp_jack); + SND_JACK_HEADPHONE, &data->hp_jack, false, false); xonar_ds_handle_hp_jack(chip); snd_component_add(chip->card, "WM8776"); diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index 9f60c25c4568..70a9bdd5f3e3 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -48,7 +48,7 @@ int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type, INIT_LIST_HEAD(&jack->jack_zones); BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier); - ret = snd_jack_new(card->snd_card, id, type, &jack->jack); + ret = snd_jack_new(card->snd_card, id, type, &jack->jack, false, false); if (ret) return ret; -- cgit v1.2.3 From 2ba2dfa1fcc7ce5d2bf1716ec3d32b6fa0882e68 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Mon, 27 Apr 2015 21:20:59 +0800 Subject: ALSA: hda - Update to use the new jack kctls method Jack snd_kcontrols can now be created during snd_jack_new() or by later calling snd_jack_add_new_kctls(). This patch creates the jacks during the initialisation stage for both phantom and non phantom jacks. Signed-off-by: Jie Yang Signed-off-by: Takashi Iwai --- include/sound/control.h | 2 +- sound/core/ctljack.c | 4 +-- sound/core/jack.c | 2 +- sound/pci/hda/hda_jack.c | 90 +++++++++++++--------------------------------- sound/pci/hda/hda_jack.h | 5 +-- sound/pci/hda/patch_hdmi.c | 2 +- 6 files changed, 31 insertions(+), 74 deletions(-) (limited to 'sound/core') diff --git a/include/sound/control.h b/include/sound/control.h index f50e2e918ceb..21d047f229a1 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -252,7 +252,7 @@ void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); * Helper functions for jack-detection controls */ struct snd_kcontrol * -snd_kctl_jack_new(const char *name, void *private_data, struct snd_card *card); +snd_kctl_jack_new(const char *name, struct snd_card *card); void snd_kctl_jack_report(struct snd_card *card, struct snd_kcontrol *kctl, bool status); diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c index df7c6cd63c4a..6435e82cacf9 100644 --- a/sound/core/ctljack.c +++ b/sound/core/ctljack.c @@ -61,11 +61,11 @@ static void jack_kctl_name_gen(char *name, const char *src_name, int size) } struct snd_kcontrol * -snd_kctl_jack_new(const char *name, void *private_data, struct snd_card *card) +snd_kctl_jack_new(const char *name, struct snd_card *card) { struct snd_kcontrol *kctl; - kctl = snd_ctl_new1(&jack_detect_kctl, private_data); + kctl = snd_ctl_new1(&jack_detect_kctl, NULL); if (!kctl) return NULL; diff --git a/sound/core/jack.c b/sound/core/jack.c index b34187b072ea..e8b51f52e7df 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -135,7 +135,7 @@ static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card *card, const cha struct snd_jack_kctl *jack_kctl; int err; - kctl = snd_kctl_jack_new(name, card, card); + kctl = snd_kctl_jack_new(name, card); if (!kctl) return NULL; diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c index 16281c69bcd6..366efbf87d41 100644 --- a/sound/pci/hda/hda_jack.c +++ b/sound/pci/hda/hda_jack.c @@ -132,11 +132,11 @@ void snd_hda_jack_tbl_clear(struct hda_codec *codec) for (i = 0; i < codec->jacktbl.used; i++, jack++) { struct hda_jack_callback *cb, *next; -#ifdef CONFIG_SND_HDA_INPUT_JACK + /* free jack instances manually when clearing/reconfiguring */ if (!codec->bus->shutdown && jack->jack) snd_device_free(codec->card, jack->jack); -#endif + for (cb = jack->callback; cb; cb = next) { next = cb->next; kfree(cb); @@ -337,20 +337,15 @@ void snd_hda_jack_report_sync(struct hda_codec *codec) jack = codec->jacktbl.list; for (i = 0; i < codec->jacktbl.used; i++, jack++) if (jack->nid) { - if (!jack->kctl || jack->block_report) + if (!jack->jack || jack->block_report) continue; state = get_jack_plug_state(jack->pin_sense); - snd_kctl_jack_report(codec->card, jack->kctl, state); -#ifdef CONFIG_SND_HDA_INPUT_JACK - if (jack->jack) - snd_jack_report(jack->jack, - state ? jack->type : 0); -#endif + snd_jack_report(jack->jack, + state ? jack->type : 0); } } EXPORT_SYMBOL_GPL(snd_hda_jack_report_sync); -#ifdef CONFIG_SND_HDA_INPUT_JACK /* guess the jack type from the pin-config */ static int get_input_jack_type(struct hda_codec *codec, hda_nid_t nid) { @@ -377,54 +372,42 @@ static void hda_free_jack_priv(struct snd_jack *jack) jacks->nid = 0; jacks->jack = NULL; } -#endif /** * snd_hda_jack_add_kctl - Add a kctl for the given pin * @codec: the HDA codec * @nid: pin NID to assign * @name: string name for the jack - * @idx: index number for the jack * @phantom_jack: flag to deal as a phantom jack * * This assigns a jack-detection kctl to the given pin. The kcontrol * will have the given name and index. */ static int __snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, - const char *name, int idx, bool phantom_jack) + const char *name, bool phantom_jack) { struct hda_jack_tbl *jack; - struct snd_kcontrol *kctl; - int err, state; + int err, state, type; jack = snd_hda_jack_tbl_new(codec, nid); if (!jack) return 0; - if (jack->kctl) + if (jack->jack) return 0; /* already created */ - kctl = snd_kctl_jack_new(name, codec, codec->card); - if (!kctl) - return -ENOMEM; - err = snd_hda_ctl_add(codec, nid, kctl); + + type = get_input_jack_type(codec, nid); + err = snd_jack_new(codec->card, name, type, + &jack->jack, true, phantom_jack); if (err < 0) return err; - jack->kctl = kctl; - jack->phantom_jack = !!phantom_jack; + jack->phantom_jack = !!phantom_jack; + jack->type = type; + jack->jack->private_data = jack; + jack->jack->private_free = hda_free_jack_priv; state = snd_hda_jack_detect(codec, nid); - snd_kctl_jack_report(codec->card, kctl, state); -#ifdef CONFIG_SND_HDA_INPUT_JACK - if (!phantom_jack) { - jack->type = get_input_jack_type(codec, nid); - err = snd_jack_new(codec->card, name, jack->type, - &jack->jack, false, false); - if (err < 0) - return err; - jack->jack->private_data = jack; - jack->jack->private_free = hda_free_jack_priv; - snd_jack_report(jack->jack, state ? jack->type : 0); - } -#endif + snd_jack_report(jack->jack, state ? jack->type : 0); + return 0; } @@ -433,44 +416,23 @@ static int __snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, * @codec: the HDA codec * @nid: pin NID * @name: the name string for the jack ctl - * @idx: the ctl index for the jack ctl * * This is a simple helper calling __snd_hda_jack_add_kctl(). */ int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, - const char *name, int idx) + const char *name) { - return __snd_hda_jack_add_kctl(codec, nid, name, idx, false); + return __snd_hda_jack_add_kctl(codec, nid, name, false); } EXPORT_SYMBOL_GPL(snd_hda_jack_add_kctl); -/* get the unique index number for the given kctl name */ -static int get_unique_index(struct hda_codec *codec, const char *name, int idx) -{ - struct hda_jack_tbl *jack; - int i, len = strlen(name); - again: - jack = codec->jacktbl.list; - for (i = 0; i < codec->jacktbl.used; i++, jack++) { - /* jack->kctl.id contains "XXX Jack" name string with index */ - if (jack->kctl && - !strncmp(name, jack->kctl->id.name, len) && - !strcmp(" Jack", jack->kctl->id.name + len) && - jack->kctl->id.index == idx) { - idx++; - goto again; - } - } - return idx; -} - static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid, const struct auto_pin_cfg *cfg, const char *base_name) { unsigned int def_conf, conn; char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; - int idx, err; + int err; bool phantom_jack; if (!nid) @@ -482,16 +444,14 @@ static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid, phantom_jack = (conn != AC_JACK_PORT_COMPLEX) || !is_jack_detectable(codec, nid); - if (base_name) { + if (base_name) strlcpy(name, base_name, sizeof(name)); - idx = 0; - } else - snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx); + else + snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), NULL); if (phantom_jack) /* Example final name: "Internal Mic Phantom Jack" */ strncat(name, " Phantom", sizeof(name) - strlen(name) - 1); - idx = get_unique_index(codec, name, idx); - err = __snd_hda_jack_add_kctl(codec, nid, name, idx, phantom_jack); + err = __snd_hda_jack_add_kctl(codec, nid, name, phantom_jack); if (err < 0) return err; diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h index b279e327a23b..387d30984dfe 100644 --- a/sound/pci/hda/hda_jack.h +++ b/sound/pci/hda/hda_jack.h @@ -39,11 +39,8 @@ struct hda_jack_tbl { unsigned int block_report:1; /* in a transitional state - do not report to userspace */ hda_nid_t gating_jack; /* valid when gating jack plugged */ hda_nid_t gated_jack; /* gated is dependent on this jack */ - struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */ -#ifdef CONFIG_SND_HDA_INPUT_JACK int type; struct snd_jack *jack; -#endif }; struct hda_jack_tbl * @@ -85,7 +82,7 @@ static inline bool snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid) bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid); int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, - const char *name, int idx); + const char *name); int snd_hda_jack_add_kctls(struct hda_codec *codec, const struct auto_pin_cfg *cfg); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 5f44f60a6389..67a85ca25e35 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2081,7 +2081,7 @@ static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx) strncat(hdmi_str, " Phantom", sizeof(hdmi_str) - strlen(hdmi_str) - 1); - return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0); + return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str); } static int generic_hdmi_build_controls(struct hda_codec *codec) -- cgit v1.2.3 From 807845e3641d3dc4c41ec84c5e576250c7218abf Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Mon, 27 Apr 2015 21:21:01 +0800 Subject: ALSA: jack: remove exporting ctljack functions snd_kctl_jack_new() and snd_kctl_jack_report() are internal only now so make them static. Signed-off-by: Jie Yang Signed-off-by: Takashi Iwai --- sound/core/ctljack.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'sound/core') diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c index 6435e82cacf9..8f8d1033425c 100644 --- a/sound/core/ctljack.c +++ b/sound/core/ctljack.c @@ -74,7 +74,6 @@ snd_kctl_jack_new(const char *name, struct snd_card *card) kctl->private_value = 0; return kctl; } -EXPORT_SYMBOL_GPL(snd_kctl_jack_new); void snd_kctl_jack_report(struct snd_card *card, struct snd_kcontrol *kctl, bool status) @@ -84,4 +83,3 @@ void snd_kctl_jack_report(struct snd_card *card, kctl->private_value = status; snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); } -EXPORT_SYMBOL_GPL(snd_kctl_jack_report); -- cgit v1.2.3 From 6ed9495e225605b7c4cd1544b87740e18ef43320 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Thu, 30 Apr 2015 20:22:46 +0800 Subject: ALSA: jack: don't report input event for phantom jack There is no input_dev for phantom jack, we should not report input event for it, otherwise, NULL pointer dereference error will occur. Fixes: 2ba2dfa1fcc7 ('ALSA: hda - Update to use the new jack kctls method') Signed-off-by: Jie Yang Signed-off-by: Takashi Iwai --- sound/core/jack.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'sound/core') diff --git a/sound/core/jack.c b/sound/core/jack.c index e8b51f52e7df..0dbd618e3c94 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -339,6 +339,13 @@ void snd_jack_report(struct snd_jack *jack, int status) if (!jack) return; + list_for_each_entry(jack_kctl, &jack->kctl_list, list) + snd_kctl_jack_report(jack->card, jack_kctl->kctl, + status & jack_kctl->mask_bits); + + if (!jack->input_dev) + return; + for (i = 0; i < ARRAY_SIZE(jack->key); i++) { int testbit = SND_JACK_BTN_0 >> i; @@ -357,10 +364,6 @@ void snd_jack_report(struct snd_jack *jack, int status) input_sync(jack->input_dev); - list_for_each_entry(jack_kctl, &jack->kctl_list, list) - snd_kctl_jack_report(jack->card, jack_kctl->kctl, - status & jack_kctl->mask_bits); - } EXPORT_SYMBOL(snd_jack_report); -- cgit v1.2.3 From 43b2cd547edcba4733bf21ea2b3f6600e3bdc514 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 30 Apr 2015 15:25:00 +0200 Subject: ALSA: jack: Fix another NULL dereference due to empty input jack Another fixes for NULL jack->input_dev in some places in jack.c. Fixes: 2ba2dfa1fcc7 ('ALSA: hda - Update to use the new jack kctls method') Signed-off-by: Takashi Iwai --- sound/core/jack.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'sound/core') diff --git a/sound/core/jack.c b/sound/core/jack.c index 0dbd618e3c94..eb66327b5f1c 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -87,6 +87,10 @@ static int snd_jack_dev_register(struct snd_device *device) snprintf(jack->name, sizeof(jack->name), "%s %s", card->shortname, jack->id); + + if (!jack->input_dev) + return 0; + jack->input_dev->name = jack->name; /* Default to the sound card device. */ @@ -278,6 +282,8 @@ EXPORT_SYMBOL(snd_jack_new); void snd_jack_set_parent(struct snd_jack *jack, struct device *parent) { WARN_ON(jack->registered); + if (!jack->input_dev) + return; jack->input_dev->dev.parent = parent; } -- cgit v1.2.3 From 90a409aad45dedc41129e0ec257b41de901b8897 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 May 2015 08:59:12 +0200 Subject: ALSA: info: Fix leaks of child entries at snd_info_free_entry() snd_info_free_entry() releases the all children nodes as well, but due to the wrong timing of releasing the link, the children nodes may be disconnected but left unreleased. This patch fixes it by moving the link free at the right position. Also it eases list_for_each_entry() without _safe option in snd_info_disconnect() because it no longer frees the children nodes there. Fixes: c560a6797e3b ('ALSA: core: Remove child proc file elements recursively') Signed-off-by: Takashi Iwai --- sound/core/info.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index c8a413d6cc9b..566279374683 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -738,13 +738,12 @@ EXPORT_SYMBOL(snd_info_create_card_entry); static void snd_info_disconnect(struct snd_info_entry *entry) { - struct snd_info_entry *p, *n; + struct snd_info_entry *p; if (!entry->p) return; - list_for_each_entry_safe(p, n, &entry->children, list) + list_for_each_entry(p, &entry->children, list) snd_info_disconnect(p); - list_del_init(&entry->list); proc_remove(entry->p); entry->p = NULL; } @@ -771,6 +770,7 @@ void snd_info_free_entry(struct snd_info_entry * entry) list_for_each_entry_safe(p, n, &entry->children, list) snd_info_free_entry(p); + list_del(&entry->list); kfree(entry->name); if (entry->private_free) entry->private_free(entry); -- cgit v1.2.3 From 2471b6c80a70e80de69f5ff4c37187c3912e5874 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 May 2015 09:20:24 +0200 Subject: ALSA: info: Register proc entries recursively, too The commit [c560a6797e3b: ALSA: core: Remove child proc file elements recursively] converted snd_card_proc_new() with the normal snd_info_*() call and removed snd_device chain for such info entries. However, it misses one point: the creation of the proc entry was managed by snd_device chain in the former code, and now it's also gone, which results in no proc files creation at all. Mea culpa. This patch makes snd_info_card_register() creating the all pending child proc entries in a shot. Also, since snd_card_register() might be called multiple times, this function is also changed to be callable multiple times. Along with the changes above, now the linked list of snd_info_entry is added at creation time instead of snd_info_register() for keeping eyes of pending info entries. Fixes: c560a6797e3b ('ALSA: core: Remove child proc file elements recursively') Reported-by: "Lu, Han" Signed-off-by: Takashi Iwai --- sound/core/info.c | 37 ++++++++++++++++++++++++++++++++++--- sound/core/init.c | 18 ++++++------------ 2 files changed, 40 insertions(+), 15 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 566279374683..13b174464cc8 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -515,22 +515,51 @@ int snd_info_card_create(struct snd_card *card) return 0; } +/* register all pending info entries */ +static int snd_info_register_recursive(struct snd_info_entry *entry) +{ + struct snd_info_entry *p; + int err; + + if (!entry->p) { + err = snd_info_register(entry); + if (err < 0) + return err; + } + + list_for_each_entry(p, &entry->children, list) { + err = snd_info_register_recursive(p); + if (err < 0) + return err; + } + + return 0; +} + /* * register the card proc file * called from init.c + * can be called multiple times for reinitialization */ int snd_info_card_register(struct snd_card *card) { struct proc_dir_entry *p; + int err; if (snd_BUG_ON(!card)) return -ENXIO; + err = snd_info_register_recursive(card->proc_root); + if (err < 0) + return err; + if (!strcmp(card->id, card->proc_root->name)) return 0; + if (card->proc_root_link) + return 0; p = proc_symlink(card->id, snd_proc_root->p, card->proc_root->name); - if (p == NULL) + if (!p) return -ENOMEM; card->proc_root_link = p; return 0; @@ -705,6 +734,8 @@ struct snd_info_entry *snd_info_create_module_entry(struct module * module, if (entry) { entry->module = module; entry->parent = parent; + if (parent) + list_add_tail(&entry->list, &parent->children); } return entry; } @@ -730,6 +761,8 @@ struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, entry->module = card->module; entry->card = card; entry->parent = parent; + if (parent) + list_add_tail(&entry->list, &parent->children); } return entry; } @@ -816,8 +849,6 @@ int snd_info_register(struct snd_info_entry * entry) proc_set_size(p, entry->size); } entry->p = p; - if (entry->parent) - list_add_tail(&entry->list, &entry->parent->children); mutex_unlock(&info_mutex); return 0; } diff --git a/sound/core/init.c b/sound/core/init.c index 769a783757ff..f8abd2d8144e 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -107,26 +107,20 @@ static void snd_card_id_read(struct snd_info_entry *entry, snd_iprintf(buffer, "%s\n", entry->card->id); } -static inline int init_info_for_card(struct snd_card *card) +static int init_info_for_card(struct snd_card *card) { int err; struct snd_info_entry *entry; - if ((err = snd_info_card_register(card)) < 0) { - dev_dbg(card->dev, "unable to create card info\n"); - return err; - } - if ((entry = snd_info_create_card_entry(card, "id", card->proc_root)) == NULL) { + entry = snd_info_create_card_entry(card, "id", card->proc_root); + if (!entry) { dev_dbg(card->dev, "unable to create card entry\n"); return err; } entry->c.text.read = snd_card_id_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } card->proc_id = entry; - return 0; + + return snd_info_card_register(card); } #else /* !CONFIG_PROC_FS */ #define init_info_for_card(card) @@ -756,7 +750,7 @@ int snd_card_register(struct snd_card *card) if (snd_cards[card->number]) { /* already registered */ mutex_unlock(&snd_card_mutex); - return 0; + return snd_info_card_register(card); /* register pending info */ } if (*card->id) { /* make a unique id name from the given string */ -- cgit v1.2.3 From 8e7ccb7ba3b67245e7be0cadbdd2aaf4a3ba1f40 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 May 2015 09:43:30 +0200 Subject: ALSA: info: Move list addition to snd_info_create_entry() Just a minor refactoring, no functional changes. Signed-off-by: Takashi Iwai --- sound/core/info.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 13b174464cc8..76cdf1d21f17 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -455,11 +455,12 @@ static struct snd_info_entry *create_subdir(struct module *mod, return entry; } -static struct snd_info_entry *snd_info_create_entry(const char *name); +static struct snd_info_entry * +snd_info_create_entry(const char *name, struct snd_info_entry *parent); int __init snd_info_init(void) { - snd_proc_root = snd_info_create_entry("asound"); + snd_proc_root = snd_info_create_entry("asound", NULL); if (!snd_proc_root) return -ENOMEM; snd_proc_root->mode = S_IFDIR | S_IRUGO | S_IXUGO; @@ -688,6 +689,7 @@ EXPORT_SYMBOL(snd_info_get_str); /** * snd_info_create_entry - create an info entry * @name: the proc file name + * @parent: the parent directory * * Creates an info entry with the given file name and initializes as * the default state. @@ -697,7 +699,8 @@ EXPORT_SYMBOL(snd_info_get_str); * * Return: The pointer of the new instance, or %NULL on failure. */ -static struct snd_info_entry *snd_info_create_entry(const char *name) +static struct snd_info_entry * +snd_info_create_entry(const char *name, struct snd_info_entry *parent) { struct snd_info_entry *entry; entry = kzalloc(sizeof(*entry), GFP_KERNEL); @@ -713,6 +716,9 @@ static struct snd_info_entry *snd_info_create_entry(const char *name) mutex_init(&entry->access); INIT_LIST_HEAD(&entry->children); INIT_LIST_HEAD(&entry->list); + entry->parent = parent; + if (parent) + list_add_tail(&entry->list, &parent->children); return entry; } @@ -730,13 +736,9 @@ struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, struct snd_info_entry *parent) { - struct snd_info_entry *entry = snd_info_create_entry(name); - if (entry) { + struct snd_info_entry *entry = snd_info_create_entry(name, parent); + if (entry) entry->module = module; - entry->parent = parent; - if (parent) - list_add_tail(&entry->list, &parent->children); - } return entry; } @@ -756,13 +758,10 @@ struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, const char *name, struct snd_info_entry * parent) { - struct snd_info_entry *entry = snd_info_create_entry(name); + struct snd_info_entry *entry = snd_info_create_entry(name, parent); if (entry) { entry->module = card->module; entry->card = card; - entry->parent = parent; - if (parent) - list_add_tail(&entry->list, &parent->children); } return entry; } -- cgit v1.2.3 From c309c467edbe006f335af5947f89636bc5473a1b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 May 2015 09:45:11 +0200 Subject: ALSA: info: Drop kerneldoc comment from snd_info_create_entry() It's no longer a part of API but merely a local function. Signed-off-by: Takashi Iwai --- sound/core/info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/core') diff --git a/sound/core/info.c b/sound/core/info.c index 76cdf1d21f17..895362a696c9 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -686,7 +686,7 @@ const char *snd_info_get_str(char *dest, const char *src, int len) EXPORT_SYMBOL(snd_info_get_str); -/** +/* * snd_info_create_entry - create an info entry * @name: the proc file name * @parent: the parent directory -- cgit v1.2.3 From 6ab97f25ad1c3883f0dc20d2d5b7dae30acade74 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 21 May 2015 11:31:40 +0200 Subject: ALSA: jack: Remove MODULE_*() macros The jack interface is statically included in sound core. Having doubly module information is rather confusing. Signed-off-by: Takashi Iwai --- sound/core/jack.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'sound/core') diff --git a/sound/core/jack.c b/sound/core/jack.c index eb66327b5f1c..7237acbdcbbc 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -372,7 +372,3 @@ void snd_jack_report(struct snd_jack *jack, int status) } EXPORT_SYMBOL(snd_jack_report); - -MODULE_AUTHOR("Mark Brown "); -MODULE_DESCRIPTION("Jack detection support for ALSA"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 838d1631b766529213684f07dd71cdf2e92f0623 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 9 May 2015 11:26:42 +0100 Subject: ALSA: pcm: add DRM ELD helper Add a helper for the EDID like data structure, which is typically passed from a HDMI adapter to its associated audio driver. This informs the audio driver of the capabilities of the attached HDMI sink. Signed-off-by: Russell King Reviewed-by: Mark Brown Signed-off-by: Takashi Iwai --- include/sound/pcm_drm_eld.h | 6 +++ sound/core/Kconfig | 3 ++ sound/core/Makefile | 1 + sound/core/pcm_drm_eld.c | 99 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 109 insertions(+) create mode 100644 include/sound/pcm_drm_eld.h create mode 100644 sound/core/pcm_drm_eld.c (limited to 'sound/core') diff --git a/include/sound/pcm_drm_eld.h b/include/sound/pcm_drm_eld.h new file mode 100644 index 000000000000..93357b25d2e2 --- /dev/null +++ b/include/sound/pcm_drm_eld.h @@ -0,0 +1,6 @@ +#ifndef __SOUND_PCM_DRM_ELD_H +#define __SOUND_PCM_DRM_ELD_H + +int snd_pcm_hw_constraint_eld(struct snd_pcm_runtime *runtime, void *eld); + +#endif diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 313f22e9d929..b534c8a6046b 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -6,6 +6,9 @@ config SND_PCM tristate select SND_TIMER +config SND_PCM_ELD + bool + config SND_DMAENGINE_PCM tristate diff --git a/sound/core/Makefile b/sound/core/Makefile index 4daf2f58261c..591b49157b4d 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -13,6 +13,7 @@ snd-$(CONFIG_SND_JACK) += jack.o snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ pcm_memory.o memalloc.o snd-pcm-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o +snd-pcm-$(CONFIG_SND_PCM_ELD) += pcm_drm_eld.o # for trace-points CFLAGS_pcm_lib.o := -I$(src) diff --git a/sound/core/pcm_drm_eld.c b/sound/core/pcm_drm_eld.c new file mode 100644 index 000000000000..e70379fb63d0 --- /dev/null +++ b/sound/core/pcm_drm_eld.c @@ -0,0 +1,99 @@ +/* + * PCM DRM helpers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include + +static const unsigned int eld_rates[] = { + 32000, + 44100, + 48000, + 88200, + 96000, + 176400, + 192000, +}; + +static unsigned int sad_max_channels(const u8 *sad) +{ + return 1 + (sad[0] & 7); +} + +static int eld_limit_rates(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_interval *r = hw_param_interval(params, rule->var); + struct snd_interval *c; + unsigned int rate_mask = 7, i; + const u8 *sad, *eld = rule->private; + + sad = drm_eld_sad(eld); + if (sad) { + c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + + for (i = drm_eld_sad_count(eld); i > 0; i--, sad += 3) { + unsigned max_channels = sad_max_channels(sad); + + /* + * Exclude SADs which do not include the + * requested number of channels. + */ + if (c->min <= max_channels) + rate_mask |= sad[1]; + } + } + + return snd_interval_list(r, ARRAY_SIZE(eld_rates), eld_rates, + rate_mask); +} + +static int eld_limit_channels(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_interval *c = hw_param_interval(params, rule->var); + struct snd_interval *r; + struct snd_interval t = { .min = 1, .max = 2, .integer = 1, }; + unsigned int i; + const u8 *sad, *eld = rule->private; + + sad = drm_eld_sad(eld); + if (sad) { + unsigned int rate_mask = 0; + + /* Convert the rate interval to a mask */ + r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + for (i = 0; i < ARRAY_SIZE(eld_rates); i++) + if (r->min <= eld_rates[i] && r->max >= eld_rates[i]) + rate_mask |= BIT(i); + + for (i = drm_eld_sad_count(eld); i > 0; i--, sad += 3) + if (rate_mask & sad[1]) + t.max = max(t.max, sad_max_channels(sad)); + } + + return snd_interval_refine(c, &t); +} + +int snd_pcm_hw_constraint_eld(struct snd_pcm_runtime *runtime, void *eld) +{ + int ret; + + ret = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + eld_limit_rates, eld, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (ret < 0) + return ret; + + ret = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + eld_limit_channels, eld, + SNDRV_PCM_HW_PARAM_RATE, -1); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_pcm_hw_constraint_eld); -- cgit v1.2.3 From 9203dd016a5d8ffb2eb6acdca60cd0b5dfe38c2b Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 9 May 2015 11:26:47 +0100 Subject: ALSA: pcm: add IEC958 channel status helper Add a helper to create the IEC958 channel status from an ALSA snd_pcm_runtime structure, taking account of the sample rate and sample size. Signed-off-by: Russell King Reviwed-by: Mark Brown Signed-off-by: Takashi Iwai --- include/sound/pcm_iec958.h | 9 +++++ sound/core/Kconfig | 3 ++ sound/core/Makefile | 1 + sound/core/pcm_iec958.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 108 insertions(+) create mode 100644 include/sound/pcm_iec958.h create mode 100644 sound/core/pcm_iec958.c (limited to 'sound/core') diff --git a/include/sound/pcm_iec958.h b/include/sound/pcm_iec958.h new file mode 100644 index 000000000000..0eed397aca8e --- /dev/null +++ b/include/sound/pcm_iec958.h @@ -0,0 +1,9 @@ +#ifndef __SOUND_PCM_IEC958_H +#define __SOUND_PCM_IEC958_H + +#include + +int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs, + size_t len); + +#endif diff --git a/sound/core/Kconfig b/sound/core/Kconfig index b534c8a6046b..1507469425ec 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -9,6 +9,9 @@ config SND_PCM config SND_PCM_ELD bool +config SND_PCM_IEC958 + bool + config SND_DMAENGINE_PCM tristate diff --git a/sound/core/Makefile b/sound/core/Makefile index 591b49157b4d..2b925fcc95ea 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -14,6 +14,7 @@ snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ pcm_memory.o memalloc.o snd-pcm-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o snd-pcm-$(CONFIG_SND_PCM_ELD) += pcm_drm_eld.o +snd-pcm-$(CONFIG_SND_PCM_IEC958) += pcm_iec958.o # for trace-points CFLAGS_pcm_lib.o := -I$(src) diff --git a/sound/core/pcm_iec958.c b/sound/core/pcm_iec958.c new file mode 100644 index 000000000000..36b2d7aca1bd --- /dev/null +++ b/sound/core/pcm_iec958.c @@ -0,0 +1,95 @@ +/* + * PCM DRM helpers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include + +/** + * snd_pcm_create_iec958_consumer - create consumer format IEC958 channel status + * @runtime: pcm runtime structure with ->rate filled in + * @cs: channel status buffer, at least four bytes + * @len: length of channel status buffer + * + * Create the consumer format channel status data in @cs of maximum size + * @len corresponding to the parameters of the PCM runtime @runtime. + * + * Drivers may wish to tweak the contents of the buffer after creation. + * + * Returns: length of buffer, or negative error code if something failed. + */ +int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs, + size_t len) +{ + unsigned int fs, ws; + + if (len < 4) + return -EINVAL; + + switch (runtime->rate) { + case 32000: + fs = IEC958_AES3_CON_FS_32000; + break; + case 44100: + fs = IEC958_AES3_CON_FS_44100; + break; + case 48000: + fs = IEC958_AES3_CON_FS_48000; + break; + case 88200: + fs = IEC958_AES3_CON_FS_88200; + break; + case 96000: + fs = IEC958_AES3_CON_FS_96000; + break; + case 176400: + fs = IEC958_AES3_CON_FS_176400; + break; + case 192000: + fs = IEC958_AES3_CON_FS_192000; + break; + default: + return -EINVAL; + } + + if (len > 4) { + switch (snd_pcm_format_width(runtime->format)) { + case 16: + ws = IEC958_AES4_CON_WORDLEN_20_16; + break; + case 18: + ws = IEC958_AES4_CON_WORDLEN_22_18; + break; + case 20: + ws = IEC958_AES4_CON_WORDLEN_20_16 | + IEC958_AES4_CON_MAX_WORDLEN_24; + break; + case 24: + ws = IEC958_AES4_CON_WORDLEN_24_20 | + IEC958_AES4_CON_MAX_WORDLEN_24; + break; + + default: + return -EINVAL; + } + } + + memset(cs, 0, len); + + cs[0] = IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_NONE; + cs[1] = IEC958_AES1_CON_GENERAL; + cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC; + cs[3] = IEC958_AES3_CON_CLOCK_1000PPM | fs; + + if (len > 4) + cs[4] = ws; + + return len; +} +EXPORT_SYMBOL(snd_pcm_create_iec958_consumer); -- cgit v1.2.3 From e0ecb05a965d0ff77ec65499bbc74eacd8d93452 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Wed, 27 May 2015 19:45:44 +0800 Subject: ALSA: Kconfig: add config item SND_PROC_FS for expert For some embedded devices, we need reduce code size and data footprint as much as possible, e.g. disabling procfs, hw/sw params refinement, mmap, dpcm, dapm, compressed API... Here add SND_PROC_FS item for expert, we can unselect it to disable sound proc FS and reduce memory footprint. Signed-off-by: Jie Yang Reviewed-by: Mark Brown Signed-off-by: Takashi Iwai --- sound/core/Kconfig | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'sound/core') diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 937f5c763899..6c96feeaf01e 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -182,9 +182,18 @@ config SND_SUPPORT_OLD_API Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 or older). +config SND_PROC_FS + bool "Sound Proc FS Support" if EXPERT + depends on PROC_FS + default y + help + Say 'N' to disable Sound proc FS, which may reduce code size about + 9KB on x86_64 platform. + If unsure say Y. + config SND_VERBOSE_PROCFS bool "Verbose procfs contents" - depends on PROC_FS + depends on SND_PROC_FS default y help Say Y here to include code for verbose procfs contents (provides -- cgit v1.2.3 From cd6a65036f0eac4ad83dc371bb458e9e6ba6e306 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Wed, 27 May 2015 19:45:45 +0800 Subject: ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS We may disable proc fs only for sound part, to reduce ALSA memory footprint. So add CONFIG_SND_PROC_FS and replace the old CONFIG_PROC_FSs in alsa code. With sound proc fs disabled, we can save about 9KB memory size on X86_64 platform. Signed-off-by: Jie Yang Reviewed-by: Mark Brown Signed-off-by: Takashi Iwai --- include/sound/info.h | 8 ++++---- sound/core/Makefile | 2 +- sound/core/hwdep.c | 6 +++--- sound/core/init.c | 8 ++++---- sound/core/oss/mixer_oss.c | 6 +++--- sound/core/pcm.c | 6 +++--- sound/core/seq/oss/seq_oss.c | 6 +++--- sound/core/seq/oss/seq_oss_init.c | 5 ++--- sound/core/seq/oss/seq_oss_midi.c | 4 ++-- sound/core/seq/oss/seq_oss_readq.c | 4 ++-- sound/core/seq/oss/seq_oss_synth.c | 4 ++-- sound/core/seq/seq_clientmgr.c | 4 ++-- sound/core/seq/seq_device.c | 2 +- sound/core/seq/seq_info.h | 2 +- sound/core/seq/seq_queue.c | 4 ++-- sound/core/seq/seq_timer.c | 4 ++-- sound/core/sound.c | 4 ++-- sound/core/sound_oss.c | 4 ++-- sound/core/timer.c | 4 ++-- sound/pci/hda/Makefile | 3 ++- sound/pci/hda/hda_eld.c | 4 ++-- sound/pci/hda/hda_local.h | 4 ++-- sound/pci/hda/patch_hdmi.c | 4 ++-- sound/pci/hda/patch_sigmatel.c | 2 +- 24 files changed, 52 insertions(+), 52 deletions(-) (limited to 'sound/core') diff --git a/include/sound/info.h b/include/sound/info.h index 16269951bafc..67390ee846aa 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -92,14 +92,14 @@ struct snd_info_entry { struct list_head list; }; -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS) int snd_info_minor_register(void); #else #define snd_info_minor_register() 0 #endif -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS extern struct snd_info_entry *snd_seq_root; #ifdef CONFIG_SND_OSSEMUL @@ -197,7 +197,7 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } * OSS info part */ -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS) #define SNDRV_OSS_INFO_DEV_AUDIO 0 #define SNDRV_OSS_INFO_DEV_SYNTH 1 @@ -210,6 +210,6 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } int snd_oss_info_register(int dev, int num, char *string); #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL) -#endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ +#endif /* CONFIG_SND_OSSEMUL && CONFIG_SND_PROC_FS */ #endif /* __SOUND_INFO_H */ diff --git a/sound/core/Makefile b/sound/core/Makefile index 73871b63a092..3354f91e003a 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -4,7 +4,7 @@ # snd-y := sound.o init.o memory.o control.o misc.o device.o -ifneq ($(CONFIG_PROC_FS),) +ifneq ($(CONFIG_SND_PROC_FS),) snd-y += info.o snd-$(CONFIG_SND_OSSEMUL) += info_oss.o endif diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 51692c8a39ea..36d2416f90d9 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -484,7 +484,7 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device) return 0; } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -521,10 +521,10 @@ static void __exit snd_hwdep_proc_done(void) { snd_info_free_entry(snd_hwdep_proc_entry); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_hwdep_proc_init() #define snd_hwdep_proc_done() -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /* diff --git a/sound/core/init.c b/sound/core/init.c index f8abd2d8144e..3e0cebacefe1 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -100,7 +100,7 @@ int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag); EXPORT_SYMBOL(snd_mixer_oss_notify_callback); #endif -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void snd_card_id_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -122,7 +122,7 @@ static int init_info_for_card(struct snd_card *card) return snd_info_card_register(card); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define init_info_for_card(card) #endif @@ -776,7 +776,7 @@ int snd_card_register(struct snd_card *card) EXPORT_SYMBOL(snd_card_register); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void snd_card_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -861,7 +861,7 @@ int __init snd_card_info_init(void) return 0; } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /** * snd_component_add - add a component string diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 056f8e274851..a99f7200ff3f 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -1111,7 +1111,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix return 0; } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* */ #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name @@ -1255,10 +1255,10 @@ 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_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_mixer_oss_proc_init(mix) #define snd_mixer_oss_proc_done(mix) -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) { diff --git a/sound/core/pcm.c b/sound/core/pcm.c index b25bcf5b8644..e53794319ef3 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -1181,7 +1181,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree) } EXPORT_SYMBOL(snd_pcm_notify); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -1227,10 +1227,10 @@ static void snd_pcm_proc_done(void) snd_info_free_entry(snd_pcm_proc_entry); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_pcm_proc_init() #define snd_pcm_proc_done() -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /* diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c index 72873a46afeb..7354b8bed860 100644 --- a/sound/core/seq/oss/seq_oss.c +++ b/sound/core/seq/oss/seq_oss.c @@ -45,7 +45,7 @@ MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MUSIC); */ static int register_device(void); static void unregister_device(void); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static int register_proc(void); static void unregister_proc(void); #else @@ -261,7 +261,7 @@ unregister_device(void) * /proc interface */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static struct snd_info_entry *info_entry; @@ -303,4 +303,4 @@ unregister_proc(void) snd_info_free_entry(info_entry); info_entry = NULL; } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c index 2de3feff70d0..b1221b29728e 100644 --- a/sound/core/seq/oss/seq_oss_init.c +++ b/sound/core/seq/oss/seq_oss_init.c @@ -479,8 +479,7 @@ snd_seq_oss_reset(struct seq_oss_devinfo *dp) snd_seq_oss_timer_stop(dp->timer); } - -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * misc. functions for proc interface */ @@ -531,4 +530,4 @@ snd_seq_oss_system_info_read(struct snd_info_buffer *buf) snd_seq_oss_readq_info_read(dp->readq, buf); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c index 96e8395ae586..aaff9ee32695 100644 --- a/sound/core/seq/oss/seq_oss_midi.c +++ b/sound/core/seq/oss/seq_oss_midi.c @@ -665,7 +665,7 @@ snd_seq_oss_midi_make_info(struct seq_oss_devinfo *dp, int dev, struct midi_info } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -705,4 +705,4 @@ snd_seq_oss_midi_info_read(struct snd_info_buffer *buf) snd_use_lock_free(&mdev->use_lock); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c index c080c73cea04..ccd893566f1d 100644 --- a/sound/core/seq/oss/seq_oss_readq.c +++ b/sound/core/seq/oss/seq_oss_readq.c @@ -222,7 +222,7 @@ snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *q, unsigned long curt, int } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -233,4 +233,4 @@ snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf (waitqueue_active(&q->midi_sleep) ? "sleeping":"running"), q->qlen, q->input_time); } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index 48e4fe1b68ab..0f3b38184fe5 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -630,7 +630,7 @@ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_in } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -658,4 +658,4 @@ snd_seq_oss_synth_info_read(struct snd_info_buffer *buf) snd_use_lock_free(&rec->use_lock); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index edbdab85fc02..b64f20deba90 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -2447,7 +2447,7 @@ EXPORT_SYMBOL(snd_seq_kernel_client_write_poll); /*---------------------------------------------------------------------------*/ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * /proc interface */ @@ -2549,7 +2549,7 @@ void snd_seq_info_clients_read(struct snd_info_entry *entry, snd_seq_client_unlock(client); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /*---------------------------------------------------------------------------*/ diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c index d99f99d61983..288af56a43cd 100644 --- a/sound/core/seq/seq_device.c +++ b/sound/core/seq/seq_device.c @@ -72,7 +72,7 @@ static struct bus_type snd_seq_bus_type = { /* * proc interface -- just for compatibility */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static struct snd_info_entry *info_entry; static int print_dev_info(struct device *dev, void *data) diff --git a/sound/core/seq/seq_info.h b/sound/core/seq/seq_info.h index 4892a7f35c08..f8549f81a645 100644 --- a/sound/core/seq/seq_info.h +++ b/sound/core/seq/seq_info.h @@ -29,7 +29,7 @@ void snd_seq_info_timer_read(struct snd_info_entry *entry, struct snd_info_buffe void snd_seq_info_queues_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS int snd_seq_info_init( void ); int snd_seq_info_done( void ); #else diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c index a0cda38205b9..7dfd0f429410 100644 --- a/sound/core/seq/seq_queue.c +++ b/sound/core/seq/seq_queue.c @@ -753,7 +753,7 @@ int snd_seq_control_queue(struct snd_seq_event *ev, int atomic, int hop) /*----------------------------------------------------------------*/ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* exported to seq_info.c */ void snd_seq_info_queues_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -787,5 +787,5 @@ void snd_seq_info_queues_read(struct snd_info_entry *entry, queuefree(q); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c index 186f1611103c..82b220c769c1 100644 --- a/sound/core/seq/seq_timer.c +++ b/sound/core/seq/seq_timer.c @@ -422,7 +422,7 @@ snd_seq_tick_time_t snd_seq_timer_get_cur_tick(struct snd_seq_timer *tmr) } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* exported to seq_info.c */ void snd_seq_info_timer_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -449,5 +449,5 @@ void snd_seq_info_timer_read(struct snd_info_entry *entry, queuefree(q); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/sound.c b/sound/core/sound.c index e5d37bd7c226..175f9e4e01c8 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -330,7 +330,7 @@ int snd_unregister_device(struct device *dev) } EXPORT_SYMBOL(snd_unregister_device); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * INFO PART */ @@ -391,7 +391,7 @@ int __init snd_minor_info_init(void) entry->c.text.read = snd_minor_info_read; return snd_info_register(entry); /* freed in error path */ } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /* * INIT PART diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 86e2d91dd375..0ca9d72b2273 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -207,7 +207,7 @@ EXPORT_SYMBOL(snd_unregister_oss_device); * INFO PART */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static const char *snd_oss_device_type_name(int type) { switch (type) { @@ -259,4 +259,4 @@ int __init snd_minor_info_oss_init(void) entry->c.text.read = snd_minor_info_oss_read; return snd_info_register(entry); /* freed in error path */ } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/timer.c b/sound/core/timer.c index a9a1a047c521..31f40f03e5b7 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1034,7 +1034,7 @@ static int snd_timer_register_system(void) return snd_timer_global_register(timer); } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -1104,7 +1104,7 @@ static void __exit snd_timer_proc_done(void) { snd_info_free_entry(snd_timer_proc_entry); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_timer_proc_init() #define snd_timer_proc_done() #endif diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile index 90e69b243b41..6d83c6e0396a 100644 --- a/sound/pci/hda/Makefile +++ b/sound/pci/hda/Makefile @@ -3,7 +3,8 @@ snd-hda-tegra-objs := hda_tegra.o snd-hda-codec-y := hda_bind.o hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o snd-hda-codec-y += hda_controller.o -snd-hda-codec-$(CONFIG_PROC_FS) += hda_proc.o +snd-hda-codec-$(CONFIG_SND_PROC_FS) += hda_proc.o + snd-hda-codec-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o snd-hda-codec-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 0e6d7534f491..c746cd9a4450 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -448,7 +448,7 @@ void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e) hdmi_show_short_audio_desc(codec, e->sad + i); } -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void hdmi_print_sad_info(int i, struct cea_sad *a, struct snd_info_buffer *buffer) @@ -586,7 +586,7 @@ void snd_hdmi_write_eld_info(struct hdmi_eld *eld, } } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ /* update PCM info based on ELD */ void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e, diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 3b567f42296b..be7c66d1738e 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -330,7 +330,7 @@ int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, /* * generic proc interface */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS int snd_hda_codec_proc_new(struct hda_codec *codec); #else static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; } @@ -777,7 +777,7 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size, bool rev3_or_later); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS void snd_hdmi_print_eld_info(struct hdmi_eld *eld, struct snd_info_buffer *buffer); void snd_hdmi_write_eld_info(struct hdmi_eld *eld, diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index ef8a5627a281..73c20c0e5d73 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -86,7 +86,7 @@ struct hdmi_spec_per_pin { bool non_pcm; bool chmap_set; /* channel-map override by ALSA API? */ unsigned char chmap[8]; /* ALSA API channel-map */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS struct snd_info_entry *proc_entry; #endif }; @@ -548,7 +548,7 @@ static void hdmi_set_channel_count(struct hda_codec *codec, * ELD proc files */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void print_eld_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 43c99ce4a520..054026a709f9 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4337,7 +4337,7 @@ static void stac_shutup(struct hda_codec *codec) #define stac_free snd_hda_gen_free -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void stac92hd_proc_hook(struct snd_info_buffer *buffer, struct hda_codec *codec, hda_nid_t nid) { -- cgit v1.2.3 From b816db9d36d3ff53c0cfa4068cc7e03249e3c45f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 29 May 2015 07:01:28 +0200 Subject: ALSA: core: Fix randconfig build wrt CONFIG_PROC_FS There are a few leftover CONFIG_PROC_FS forgotten to replace with CONFIG_SND_PROC_FS. Fixes: cd6a65036f0e ('ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS') Reported-by: Jim Davis Signed-off-by: Takashi Iwai --- sound/core/seq/Makefile | 2 +- sound/core/seq/seq_device.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'sound/core') diff --git a/sound/core/seq/Makefile b/sound/core/seq/Makefile index b29ffe835205..b65fa5a1943b 100644 --- a/sound/core/seq/Makefile +++ b/sound/core/seq/Makefile @@ -7,7 +7,7 @@ snd-seq-device-objs := seq_device.o snd-seq-objs := seq.o seq_lock.o seq_clientmgr.o seq_memory.o seq_queue.o \ seq_fifo.o seq_prioq.o seq_timer.o \ seq_system.o seq_ports.o -snd-seq-$(CONFIG_PROC_FS) += seq_info.o +snd-seq-$(CONFIG_SND_PROC_FS) += seq_info.o snd-seq-midi-objs := seq_midi.o snd-seq-midi-emul-objs := seq_midi_emul.o snd-seq-midi-event-objs := seq_midi_event.o diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c index 288af56a43cd..c4acf17e9f5e 100644 --- a/sound/core/seq/seq_device.c +++ b/sound/core/seq/seq_device.c @@ -272,7 +272,7 @@ EXPORT_SYMBOL_GPL(snd_seq_driver_unregister); static int __init seq_dev_proc_init(void) { -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS info_entry = snd_info_create_module_entry(THIS_MODULE, "drivers", snd_seq_root); if (info_entry == NULL) @@ -305,7 +305,7 @@ static void __exit alsa_seq_device_exit(void) #ifdef CONFIG_MODULES cancel_work_sync(&autoload_work); #endif -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS snd_info_free_entry(info_entry); #endif bus_unregister(&snd_seq_bus_type); -- cgit v1.2.3 From d0a601c278de6876f36bcf1b7a9678d93d7dc67b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 29 May 2015 14:06:32 +0200 Subject: ALSA: jack: Fix the id uniqueness check snd_kctl_jack_new() tries to assign a unique index number when a name string that has been already registered is passed. However, it checks with the base string without "Jack" suffix, so it never hits. Fix the call with the properly processed name string instead. Fixes: b8dd086674cf 'ALSA: Jack: handle jack embedded kcontrol creating within ctljack') Signed-off-by: Takashi Iwai --- sound/core/ctljack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/core') diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c index 8f8d1033425c..9149a4aefa95 100644 --- a/sound/core/ctljack.c +++ b/sound/core/ctljack.c @@ -70,7 +70,7 @@ snd_kctl_jack_new(const char *name, struct snd_card *card) return NULL; jack_kctl_name_gen(kctl->id.name, name, sizeof(kctl->id.name)); - kctl->id.index = get_available_index(card, name); + kctl->id.index = get_available_index(card, kctl->id.name); kctl->private_value = 0; return kctl; } -- cgit v1.2.3 From 60b93030b44a8c2cd015cebe5624fd7552ec67ec Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 23 Jun 2015 11:56:22 +0200 Subject: ALSA: pcm: Fix pcm_class sysfs output The pcm_class sysfs of each PCM substream gives only "none" since the recent code change to embed the struct device. Fix the code to point directly to the embedded device object properly. Fixes: ef46c7af93f9 ('ALSA: pcm: Embed struct device') Cc: # v4.0+ Signed-off-by: Takashi Iwai --- sound/core/pcm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sound/core') diff --git a/sound/core/pcm.c b/sound/core/pcm.c index e53794319ef3..02bd96954dc4 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -1027,7 +1027,8 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream) static ssize_t show_pcm_class(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_pcm *pcm; + struct snd_pcm_str *pstr = container_of(dev, struct snd_pcm_str, dev); + struct snd_pcm *pcm = pstr->pcm; const char *str; static const char *strs[SNDRV_PCM_CLASS_LAST + 1] = { [SNDRV_PCM_CLASS_GENERIC] = "generic", @@ -1036,8 +1037,7 @@ static ssize_t show_pcm_class(struct device *dev, [SNDRV_PCM_CLASS_DIGITIZER] = "digitizer", }; - if (! (pcm = dev_get_drvdata(dev)) || - pcm->dev_class > SNDRV_PCM_CLASS_LAST) + if (pcm->dev_class > SNDRV_PCM_CLASS_LAST) str = "none"; else str = strs[pcm->dev_class]; -- cgit v1.2.3