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-rw-r--r--include/sound/core.h3
-rw-r--r--include/sound/hwdep.h1
-rw-r--r--sound/core/hwdep.c14
-rw-r--r--sound/core/pcm.c30
-rw-r--r--sound/core/sound.c23
-rw-r--r--sound/pci/hda/hda_codec.c16
-rw-r--r--sound/pci/hda/hda_hwdep.c110
-rw-r--r--sound/pci/hda/hda_local.h18
8 files changed, 112 insertions, 103 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index a3e3e89b63b6..9c1187334195 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -248,8 +248,7 @@ static inline int snd_register_device(int type, struct snd_card *card, int dev,
int snd_unregister_device(int type, struct snd_card *card, int dev);
void *snd_lookup_minor_data(unsigned int minor, int type);
-int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
- struct device_attribute *attr);
+struct device *snd_get_device(int type, struct snd_card *card, int dev);
#ifdef CONFIG_SND_OSSEMUL
int snd_register_oss_device(int type, struct snd_card *card, int dev,
diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h
index 6233eb092d0a..193a3c57ed25 100644
--- a/include/sound/hwdep.h
+++ b/include/sound/hwdep.h
@@ -68,6 +68,7 @@ struct snd_hwdep {
wait_queue_head_t open_wait;
void *private_data;
void (*private_free) (struct snd_hwdep *hwdep);
+ const struct attribute_group **groups;
struct mutex open_mutex;
int used; /* reference counter */
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c
index 8c778659fa03..99f7e8515ba1 100644
--- a/sound/core/hwdep.c
+++ b/sound/core/hwdep.c
@@ -436,6 +436,20 @@ static int snd_hwdep_dev_register(struct snd_device *device)
mutex_unlock(&register_mutex);
return err;
}
+
+ if (hwdep->groups) {
+ struct device *d = snd_get_device(SNDRV_DEVICE_TYPE_HWDEP,
+ hwdep->card, hwdep->device);
+ if (d) {
+ err = sysfs_create_groups(&d->kobj, hwdep->groups);
+ if (err < 0)
+ dev_warn(card->dev,
+ "hwdep %d:%d: cannot create sysfs groups\n",
+ card->number, hwdep->device);
+ put_device(d);
+ }
+ }
+
#ifdef CONFIG_SND_OSSEMUL
hwdep->ossreg = 0;
if (hwdep->oss_type >= 0) {
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 9defdaef520b..43932e8dce66 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1018,8 +1018,20 @@ static ssize_t show_pcm_class(struct device *dev,
return snprintf(buf, PAGE_SIZE, "%s\n", str);
}
-static struct device_attribute pcm_attrs =
- __ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL);
+static DEVICE_ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL);
+static struct attribute *pcm_dev_attrs[] = {
+ &dev_attr_pcm_class.attr,
+ NULL
+};
+
+static struct attribute_group pcm_dev_attr_group = {
+ .attrs = pcm_dev_attrs,
+};
+
+static const struct attribute_group *pcm_dev_attr_groups[] = {
+ &pcm_dev_attr_group,
+ NULL
+};
static int snd_pcm_dev_register(struct snd_device *device)
{
@@ -1069,8 +1081,18 @@ static int snd_pcm_dev_register(struct snd_device *device)
mutex_unlock(&register_mutex);
return err;
}
- snd_add_device_sysfs_file(devtype, pcm->card, pcm->device,
- &pcm_attrs);
+
+ dev = snd_get_device(devtype, pcm->card, pcm->device);
+ if (dev) {
+ err = sysfs_create_groups(&dev->kobj,
+ pcm_dev_attr_groups);
+ if (err < 0)
+ dev_warn(dev,
+ "pcm %d:%d: cannot create sysfs groups\n",
+ pcm->card->number, pcm->device);
+ put_device(dev);
+ }
+
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
snd_pcm_timer_init(substream);
}
diff --git a/sound/core/sound.c b/sound/core/sound.c
index 60ab9b1f44b9..38ad1a0dd3f7 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -355,22 +355,25 @@ int snd_unregister_device(int type, struct snd_card *card, int dev)
EXPORT_SYMBOL(snd_unregister_device);
-int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
- struct device_attribute *attr)
+/* get the assigned device to the given type and device number;
+ * the caller needs to release it via put_device() after using it
+ */
+struct device *snd_get_device(int type, struct snd_card *card, int dev)
{
- int minor, ret = -EINVAL;
- struct device *d;
+ int minor;
+ struct device *d = NULL;
mutex_lock(&sound_mutex);
minor = find_snd_minor(type, card, dev);
- if (minor >= 0 && (d = snd_minors[minor]->dev) != NULL)
- ret = device_create_file(d, attr);
+ if (minor >= 0) {
+ d = snd_minors[minor]->dev;
+ if (d)
+ get_device(d);
+ }
mutex_unlock(&sound_mutex);
- return ret;
-
+ return d;
}
-
-EXPORT_SYMBOL(snd_add_device_sysfs_file);
+EXPORT_SYMBOL(snd_get_device);
#ifdef CONFIG_PROC_FS
/*
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 115502783b64..51360d916e6b 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -852,21 +852,6 @@ static int snd_hda_bus_dev_free(struct snd_device *device)
return snd_hda_bus_free(bus);
}
-#ifdef CONFIG_SND_HDA_HWDEP
-static int snd_hda_bus_dev_register(struct snd_device *device)
-{
- struct hda_bus *bus = device->device_data;
- struct hda_codec *codec;
- list_for_each_entry(codec, &bus->codec_list, list) {
- snd_hda_hwdep_add_sysfs(codec);
- snd_hda_hwdep_add_power_sysfs(codec);
- }
- return 0;
-}
-#else
-#define snd_hda_bus_dev_register NULL
-#endif
-
/**
* snd_hda_bus_new - create a HDA bus
* @card: the card entry
@@ -882,7 +867,6 @@ int snd_hda_bus_new(struct snd_card *card,
struct hda_bus *bus;
int err;
static struct snd_device_ops dev_ops = {
- .dev_register = snd_hda_bus_dev_register,
.dev_free = snd_hda_bus_dev_free,
};
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index 53c961992d0c..53eef6a01589 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -124,6 +124,8 @@ static void hwdep_free(struct snd_hwdep *hwdep)
clear_hwdep_elements(hwdep->private_data);
}
+static const struct attribute_group *snd_hda_dev_attr_groups[];
+
int snd_hda_create_hwdep(struct hda_codec *codec)
{
char hwname[16];
@@ -140,6 +142,7 @@ int snd_hda_create_hwdep(struct hda_codec *codec)
hwdep->private_data = codec;
hwdep->private_free = hwdep_free;
hwdep->exclusive = 1;
+ hwdep->groups = snd_hda_dev_attr_groups;
hwdep->ops.open = hda_hwdep_open;
hwdep->ops.ioctl = hda_hwdep_ioctl;
@@ -176,21 +179,8 @@ static ssize_t power_off_acct_show(struct device *dev,
return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct));
}
-static struct device_attribute power_attrs[] = {
- __ATTR_RO(power_on_acct),
- __ATTR_RO(power_off_acct),
-};
-
-int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec)
-{
- struct snd_hwdep *hwdep = codec->hwdep;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(power_attrs); i++)
- snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card,
- hwdep->device, &power_attrs[i]);
- return 0;
-}
+static DEVICE_ATTR_RO(power_on_acct);
+static DEVICE_ATTR_RO(power_off_acct);
#endif /* CONFIG_PM */
#ifdef CONFIG_SND_HDA_RECONFIG
@@ -568,44 +558,21 @@ static ssize_t user_pin_configs_store(struct device *dev,
return count;
}
-#define CODEC_ATTR_RW(type) \
- __ATTR(type, 0644, type##_show, type##_store)
-#define CODEC_ATTR_RO(type) \
- __ATTR_RO(type)
-#define CODEC_ATTR_WO(type) \
- __ATTR(type, 0200, NULL, type##_store)
-
-static struct device_attribute codec_attrs[] = {
- CODEC_ATTR_RW(vendor_id),
- CODEC_ATTR_RW(subsystem_id),
- CODEC_ATTR_RW(revision_id),
- CODEC_ATTR_RO(afg),
- CODEC_ATTR_RO(mfg),
- CODEC_ATTR_RW(vendor_name),
- CODEC_ATTR_RW(chip_name),
- CODEC_ATTR_RW(modelname),
- CODEC_ATTR_RW(init_verbs),
- CODEC_ATTR_RW(hints),
- CODEC_ATTR_RO(init_pin_configs),
- CODEC_ATTR_RW(user_pin_configs),
- CODEC_ATTR_RO(driver_pin_configs),
- CODEC_ATTR_WO(reconfig),
- CODEC_ATTR_WO(clear),
-};
-
-/*
- * create sysfs files on hwdep directory
- */
-int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
-{
- struct snd_hwdep *hwdep = codec->hwdep;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(codec_attrs); i++)
- snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card,
- hwdep->device, &codec_attrs[i]);
- return 0;
-}
+static DEVICE_ATTR_RW(vendor_id);
+static DEVICE_ATTR_RW(subsystem_id);
+static DEVICE_ATTR_RW(revision_id);
+static DEVICE_ATTR_RO(afg);
+static DEVICE_ATTR_RO(mfg);
+static DEVICE_ATTR_RW(vendor_name);
+static DEVICE_ATTR_RW(chip_name);
+static DEVICE_ATTR_RW(modelname);
+static DEVICE_ATTR_RW(init_verbs);
+static DEVICE_ATTR_RW(hints);
+static DEVICE_ATTR_RO(init_pin_configs);
+static DEVICE_ATTR_RW(user_pin_configs);
+static DEVICE_ATTR_RO(driver_pin_configs);
+static DEVICE_ATTR_WO(reconfig);
+static DEVICE_ATTR_WO(clear);
/*
* Look for hint string
@@ -884,3 +851,40 @@ int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf)
}
EXPORT_SYMBOL_GPL(snd_hda_load_patch);
#endif /* CONFIG_SND_HDA_PATCH_LOADER */
+
+/*
+ * sysfs entries
+ */
+static struct attribute *hda_dev_attrs[] = {
+#ifdef CONFIG_PM
+ &dev_attr_power_on_acct.attr,
+ &dev_attr_power_off_acct.attr,
+#endif
+#ifdef CONFIG_SND_HDA_RECONFIG
+ &dev_attr_vendor_id.attr,
+ &dev_attr_subsystem_id.attr,
+ &dev_attr_revision_id.attr,
+ &dev_attr_afg.attr,
+ &dev_attr_mfg.attr,
+ &dev_attr_vendor_name.attr,
+ &dev_attr_chip_name.attr,
+ &dev_attr_modelname.attr,
+ &dev_attr_init_verbs.attr,
+ &dev_attr_hints.attr,
+ &dev_attr_init_pin_configs.attr,
+ &dev_attr_user_pin_configs.attr,
+ &dev_attr_driver_pin_configs.attr,
+ &dev_attr_reconfig.attr,
+ &dev_attr_clear.attr,
+#endif
+ NULL
+};
+
+static struct attribute_group hda_dev_attr_group = {
+ .attrs = hda_dev_attrs,
+};
+
+static const struct attribute_group *snd_hda_dev_attr_groups[] = {
+ &hda_dev_attr_group,
+ NULL
+};
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index da80c5bd7fd4..31545923f6ac 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -597,24 +597,6 @@ int snd_hda_create_hwdep(struct hda_codec *codec);
static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
#endif
-#if defined(CONFIG_PM) && defined(CONFIG_SND_HDA_HWDEP)
-int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec);
-#else
-static inline int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec)
-{
- return 0;
-}
-#endif
-
-#ifdef CONFIG_SND_HDA_RECONFIG
-int snd_hda_hwdep_add_sysfs(struct hda_codec *codec);
-#else
-static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
-{
- return 0;
-}
-#endif
-
#ifdef CONFIG_SND_HDA_RECONFIG
const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.