diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 17:15:18 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 17:15:18 -0700 |
commit | 4570a37169d4b44d316f40b2ccc681dc93fedc7b (patch) | |
tree | cafffb586c60dddfb04b8619fa1ae0e859600de7 /sound/core | |
parent | f7b08217c755e88a29b5bd53b4a1d10cd8b3c5f8 (diff) | |
parent | 60b93030b44a8c2cd015cebe5624fd7552ec67ec (diff) | |
download | linux-stable-4570a37169d4b44d316f40b2ccc681dc93fedc7b.tar.gz linux-stable-4570a37169d4b44d316f40b2ccc681dc93fedc7b.tar.bz2 linux-stable-4570a37169d4b44d316f40b2ccc681dc93fedc7b.zip |
Merge tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It was a busy development cycle at this time, as you can see a wide
range of changes in diffstat. There are no big changes but many
refactoring and improvements. Here we go some highlights:
ALSA core:
- Procfs codes were cleaned up to use seq_file
- Procfs can be opt out via Kconfig (only for EXPERT)
- Two types of jack API were unified finally; now both kctl and input
jack devs are handled via a single function call.
HD-audio:
- Continued code restructuring for the future ASoC driver; now HDA
controller driver is split to a core helper module.
- Preliminary codes for Skylake audio support in HDA core.
- Proper i915 gfx power well management for SKL & co
- Enabled runtime PM as default for Intel HDMI/DP codecs
- Newer Tegra chip supports
- More quirks for Dell headsets, Alienware (with CA0132), etc.
- A couple of DRM ELD helper API functions
ASoC:
- Support for loading ASoC topology maps from firmware, intended to
be used to allow self-describing DSP firmware images to be built
which can map controls added by the DSP to userspace without the
kernel needing to know about individual DSP firmwares
- Lots of refactoring to avoid direct access to snd_soc_codec where
it's not needed supporting future refactoring
- Big refactoring, cleanup and enhancement for the Wolfson ADSP
driver
- Cleanup series for TI TAS2552 and R-CAR drivers
- Fixes and improvements on RT56xx codecs
- Support for TI TAS571x power amplifiers
- Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs
- Support for x86 systems with RT5650 and Qualcomm Storm
- Support for Mediatek AFE (Audio Front End) unit
- Other various small fixes to ASoC codec drivers
Firewire:
- Enhanced to allow non-blocking streams to use timestamp
synchronization
- Improve support for DM1500 and BeBoBv3
Misc:
- Cleanup of old pci API functions over all PCI sound drivers
- Fix long-standing regression of the old powermac i2c setup"
* tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (533 commits)
ALSA: pcm: Fix pcm_class sysfs output
ALSA: hda-beep: Update authors dead email address
ASoC: wm_adsp: Move DSP Rate controls into the codec
ASoC: wm8995: Fix setting sysclk for WM8995_SYSCLK_MCLK2 case
ALSA: hda: provide default bus io ops extended hdac
ALSA: hda: add hda link cleanup routine
ALSA: hda: add hdac_ext stream creation and cleanup routines
ASoC: rsrc-card: remove unused ret
ALSA: HDAC: move SND_HDA_PREALLOC_SIZE to core
ASoC: mediatek: Add machine driver for rt5650 rt5676 codec
ASoC: mediatek: Add machine driver for MAX98090 codec
ASoC: mediatek: Add AFE platform driver
ASoC: rsnd: remove io from rsnd_mod
ASoC: rsnd: move rsnd_mod_is_working() to rsnd_io_is_working()
ASoC: rsnd: don't use rsnd_mod_to_io() on snd_kcontrol
ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_src_xxx()
ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_ssi_xxx()
ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_dma_xxx()
ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_get_adinr()
ASoC: rsnd: add common interrupt handler for SSI/SRC/DMA
...
Diffstat (limited to 'sound/core')
-rw-r--r-- | sound/core/Kconfig | 20 | ||||
-rw-r--r-- | sound/core/Makefile | 13 | ||||
-rw-r--r-- | sound/core/ctljack.c | 41 | ||||
-rw-r--r-- | sound/core/hwdep.c | 6 | ||||
-rw-r--r-- | sound/core/info.c | 833 | ||||
-rw-r--r-- | sound/core/info_oss.c | 29 | ||||
-rw-r--r-- | sound/core/init.c | 59 | ||||
-rw-r--r-- | sound/core/jack.c | 146 | ||||
-rw-r--r-- | sound/core/oss/mixer_oss.c | 6 | ||||
-rw-r--r-- | sound/core/pcm.c | 12 | ||||
-rw-r--r-- | sound/core/pcm_drm_eld.c | 99 | ||||
-rw-r--r-- | sound/core/pcm_iec958.c | 95 | ||||
-rw-r--r-- | sound/core/seq/Makefile | 3 | ||||
-rw-r--r-- | sound/core/seq/oss/seq_oss.c | 6 | ||||
-rw-r--r-- | sound/core/seq/oss/seq_oss_init.c | 5 | ||||
-rw-r--r-- | sound/core/seq/oss/seq_oss_midi.c | 4 | ||||
-rw-r--r-- | sound/core/seq/oss/seq_oss_readq.c | 4 | ||||
-rw-r--r-- | sound/core/seq/oss/seq_oss_synth.c | 4 | ||||
-rw-r--r-- | sound/core/seq/seq_clientmgr.c | 4 | ||||
-rw-r--r-- | sound/core/seq/seq_device.c | 6 | ||||
-rw-r--r-- | sound/core/seq/seq_info.c | 19 | ||||
-rw-r--r-- | sound/core/seq/seq_info.h | 2 | ||||
-rw-r--r-- | sound/core/seq/seq_queue.c | 4 | ||||
-rw-r--r-- | sound/core/seq/seq_timer.c | 4 | ||||
-rw-r--r-- | sound/core/sound.c | 28 | ||||
-rw-r--r-- | sound/core/sound_oss.c | 34 | ||||
-rw-r--r-- | sound/core/timer.c | 4 |
27 files changed, 821 insertions, 669 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 313f22e9d929..6c96feeaf01e 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -6,6 +6,12 @@ config SND_PCM tristate select SND_TIMER +config SND_PCM_ELD + bool + +config SND_PCM_IEC958 + bool + config SND_DMAENGINE_PCM tristate @@ -176,9 +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 @@ -221,9 +236,6 @@ 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..3354f91e003a 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -3,16 +3,21 @@ # Copyright (c) 1999,2001 by Jaroslav Kysela <perex@perex.cz> # -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 ($(CONFIG_SND_PROC_FS),) +snd-y += info.o +snd-$(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 +snd-$(CONFIG_SND_JACK) += ctljack.o jack.o snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ pcm_memory.o memalloc.o snd-pcm-$(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/ctljack.c b/sound/core/ctljack.c index e4b38fbe51da..9149a4aefa95 100644 --- a/sound/core/ctljack.c +++ b/sound/core/ctljack.c @@ -31,19 +31,49 @@ 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, 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; - 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, kctl->id.name); 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) @@ -53,4 +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); 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/info.c b/sound/core/info.c index 9f404e965ea2..895362a696c9 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -33,12 +33,6 @@ #include <linux/mutex.h> #include <stdarg.h> -/* - * - */ - -#ifdef CONFIG_PROC_FS - int snd_info_check_reserved_words(const char *str) { static char *reserved[] = @@ -78,81 +72,51 @@ 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); +/* -/* 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; +static struct snd_info_entry *snd_proc_root; +struct snd_info_entry *snd_seq_root; +EXPORT_SYMBOL(snd_seq_root); - buffer->buffer = nbuf; - buffer->len = nsize; - return 0; -} +#ifdef CONFIG_SND_OSSEMUL +struct snd_info_entry *snd_oss_root; +#endif -/** - * 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, ...) +static int alloc_info_private(struct snd_info_entry *entry, + struct snd_info_private_data **ret) { - va_list args; - int len, res; - int err = 0; + struct snd_info_private_data *data; - 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; + 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; } - va_end(args); - - if (err < 0) - return err; - buffer->curr += res; - buffer->size += res; - return res; + data->entry = entry; + *ret = data; + return 0; } -EXPORT_SYMBOL(snd_iprintf); +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 struct proc_dir_entry *snd_proc_root; -struct snd_info_entry *snd_seq_root; -EXPORT_SYMBOL(snd_seq_root); - -#ifdef CONFIG_SND_OSSEMUL -struct snd_info_entry *snd_oss_root; -#endif - static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) { struct snd_info_private_data *data; @@ -162,17 +126,14 @@ 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 +162,20 @@ 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; @@ -248,347 +184,319 @@ 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) - return -EIO; - if ((unsigned long) pos + (unsigned long) count < (unsigned long) pos) + if (!valid_pos(pos, count)) 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_RDONLY || mode == O_RDWR) && !entry->c.ops->read) || + ((mode == O_WRONLY || mode == O_RDWR) && !entry->c.ops->write)) { + 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; - } - } - 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; } - return -ENXIO; + 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 const struct file_operations snd_info_entry_operations = +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); + } + + module_put(entry->module); + kfree(data); + return 0; +} + +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) +static struct snd_info_entry *create_subdir(struct module *mod, + const char *name) { - struct proc_dir_entry *p; + struct snd_info_entry *entry; - p = proc_mkdir("asound", NULL); - if (p == NULL) + 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; +} + +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", NULL); + 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 - { - 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(); + if (snd_info_version_init() < 0 || + snd_minor_info_init() < 0 || + snd_minor_info_oss_init() < 0 || + snd_card_info_init() < 0 || + snd_info_minor_register() < 0) + goto error; return 0; + + error: + snd_info_free_entry(snd_proc_root); + return -ENOMEM; } 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 */ @@ -601,33 +509,58 @@ 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; } +/* 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; - p = proc_symlink(card->id, snd_proc_root, card->proc_root->name); - if (p == NULL) + if (card->proc_root_link) + return 0; + p = proc_symlink(card->id, snd_proc_root->p, card->proc_root->name); + if (!p) return -ENOMEM; card->proc_root_link = p; return 0; @@ -645,7 +578,7 @@ 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); } @@ -753,9 +686,10 @@ 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 * * Creates an info entry with the given file name and initializes as * the default state. @@ -765,7 +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); @@ -781,6 +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; } @@ -798,11 +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; - } return entry; } @@ -822,11 +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; } return entry; } @@ -835,95 +770,39 @@ 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)); - } + struct snd_info_entry *p; - if (! entry->p) + if (!entry->p) return; - list_del_init(&entry->list); - root = entry->parent == NULL ? snd_proc_root : entry->parent->p; - snd_BUG_ON(!root); + list_for_each_entry(p, &entry->children, list) + snd_info_disconnect(p); 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); + + list_del(&entry->list); kfree(entry->name); if (entry->private_free) entry->private_free(entry); @@ -946,7 +825,7 @@ 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); @@ -955,8 +834,13 @@ 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; @@ -964,8 +848,6 @@ 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; } @@ -976,8 +858,6 @@ 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, @@ -993,18 +873,5 @@ 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; - } - snd_info_version_entry = entry; - return 0; + return snd_info_register(entry); /* freed in error path */ } - -static int __exit snd_info_version_done(void) -{ - snd_info_free_entry(snd_info_version_entry); - return 0; -} - -#endif /* CONFIG_PROC_FS */ diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c index 83c29dbff9c0..1478c8dfd473 100644 --- a/sound/core/info_oss.c +++ b/sound/core/info_oss.c @@ -29,15 +29,12 @@ #include <linux/utsname.h> #include <linux/mutex.h> -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) - /* * OSS compatible part */ 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) { @@ -112,27 +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; + 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 */ } - -int snd_info_minor_unregister(void) -{ - snd_info_free_entry(snd_sndstat_proc_entry); - snd_sndstat_proc_entry = NULL; - return 0; -} - -#endif /* CONFIG_SND_OSSEMUL */ diff --git a/sound/core/init.c b/sound/core/init.c index 04734e047bfe..3e0cebacefe1 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -100,35 +100,29 @@ 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) { 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 */ +#else /* !CONFIG_SND_PROC_FS */ #define init_info_for_card(card) #endif @@ -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 */ @@ -782,9 +776,7 @@ 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; - +#ifdef CONFIG_SND_PROC_FS static void snd_card_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -810,7 +802,6 @@ 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 +823,6 @@ 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) { @@ -857,36 +847,21 @@ 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; - } - snd_card_info_entry = entry; + 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); - else - snd_card_module_info_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; } - -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 */ +#endif /* CONFIG_SND_PROC_FS */ /** * snd_component_add - add a component string diff --git a/sound/core/jack.c b/sound/core/jack.c index 8658578eb584..7237acbdcbbc 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -24,6 +24,13 @@ #include <linux/module.h> #include <sound/jack.h> #include <sound/core.h> +#include <sound/control.h> + +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); @@ -74,6 +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. */ @@ -100,6 +117,77 @@ 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, 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 @@ -107,6 +195,8 @@ static int snd_jack_dev_register(struct snd_device *device) * @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. * @@ -114,9 +204,10 @@ static int snd_jack_dev_register(struct snd_device *device) * 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 = { @@ -125,31 +216,47 @@ 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) goto fail_input; + jack->card = card; + INIT_LIST_HEAD(&jack->kctl_list); + + if (initial_kctl) + snd_jack_kctl_add(jack, jack_kctl); + *jjack = jack; return 0; @@ -175,6 +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; } @@ -230,11 +339,19 @@ 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) 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; @@ -252,9 +369,6 @@ void snd_jack_report(struct snd_jack *jack, int status) } input_sync(jack->input_dev); + } EXPORT_SYMBOL(snd_jack_report); - -MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); -MODULE_DESCRIPTION("Jack detection support for ALSA"); -MODULE_LICENSE("GPL"); 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..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]; @@ -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/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 <linux/export.h> +#include <drm/drm_edid.h> +#include <sound/pcm.h> +#include <sound/pcm_drm_eld.h> + +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); 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 <linux/export.h> +#include <linux/types.h> +#include <sound/asoundef.h> +#include <sound/pcm.h> +#include <sound/pcm_iec958.h> + +/** + * 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); diff --git a/sound/core/seq/Makefile b/sound/core/seq/Makefile index 941f64a853eb..b65fa5a1943b 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_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/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..c4acf17e9f5e 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) @@ -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); diff --git a/sound/core/seq/seq_info.c b/sound/core/seq/seq_info.c index acf7769419f0..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; @@ -51,6 +50,13 @@ 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 +65,17 @@ 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/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 5fc93d00572a..175f9e4e01c8 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -330,13 +330,10 @@ int snd_unregister_device(struct device *dev) } EXPORT_SYMBOL(snd_unregister_device); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * INFO PART */ - -static struct snd_info_entry *snd_minor_info_entry; - static const char *snd_device_type_name(int type) { switch (type) { @@ -389,23 +386,12 @@ 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; - } - } - snd_minor_info_entry = entry; - return 0; -} - -int __exit snd_minor_info_done(void) -{ - snd_info_free_entry(snd_minor_info_entry); - 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 */ +#endif /* CONFIG_SND_PROC_FS */ /* * INIT PART @@ -423,7 +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 @@ -432,7 +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"); } diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 573a65eb2b79..0ca9d72b2273 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 <linux/init.h> #include <linux/export.h> #include <linux/slab.h> @@ -213,10 +207,7 @@ EXPORT_SYMBOL(snd_unregister_oss_device); * INFO PART */ -#ifdef CONFIG_PROC_FS - -static struct snd_info_entry *snd_minor_info_oss_entry; - +#ifdef CONFIG_SND_PROC_FS static const char *snd_oss_device_type_name(int type) { switch (type) { @@ -263,22 +254,9 @@ 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); - 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; + 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 */ - -#endif /* CONFIG_SND_OSSEMUL */ +#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 |