Merge branch 'topic/udev-id-rename' into to-push

5 files changed, 146 insertions, 52 deletions

diff --git a/include/sound/info.h b/include/sound/info.h
index 8ae72e74f898..7c2ee1a21b00 100644
--- a/include/sound/info.h
+++ b/include/sound/info.h
@@ -40,30 +40,34 @@ struct snd_info_buffer {
 struct snd_info_entry;
 
 struct snd_info_entry_text {
-	void (*read) (struct snd_info_entry *entry, struct snd_info_buffer *buffer);
-	void (*write) (struct snd_info_entry *entry, struct snd_info_buffer *buffer);
+	void (*read)(struct snd_info_entry *entry,
+		     struct snd_info_buffer *buffer);
+	void (*write)(struct snd_info_entry *entry,
+		      struct snd_info_buffer *buffer);
 };
 
 struct snd_info_entry_ops {
-	int (*open) (struct snd_info_entry *entry,
-		     unsigned short mode, void **file_private_data);
-	int (*release) (struct snd_info_entry * entry,
-			unsigned short mode, void *file_private_data);
-	long (*read) (struct snd_info_entry *entry, void *file_private_data,
-		      struct file * file, char __user *buf,
+	int (*open)(struct snd_info_entry *entry,
+		    unsigned short mode, void **file_private_data);
+	int (*release)(struct snd_info_entry *entry,
+		       unsigned short mode, void *file_private_data);
+	long (*read)(struct snd_info_entry *entry, void *file_private_data,
+		     struct file *file, char __user *buf,
+		     unsigned long count, unsigned long pos);
+	long (*write)(struct snd_info_entry *entry, void *file_private_data,
+		      struct file *file, const char __user *buf,
 		      unsigned long count, unsigned long pos);
-	long (*write) (struct snd_info_entry *entry, void *file_private_data,
-		       struct file * file, const char __user *buf,
-		       unsigned long count, unsigned long pos);
-	long long (*llseek) (struct snd_info_entry *entry, void *file_private_data,
-			    struct file * file, long long offset, int orig);
-	unsigned int (*poll) (struct snd_info_entry *entry, void *file_private_data,
-			      struct file * file, poll_table * wait);
-	int (*ioctl) (struct snd_info_entry *entry, void *file_private_data,
-		      struct file * file, unsigned int cmd, unsigned long arg);
-	int (*mmap) (struct snd_info_entry *entry, void *file_private_data,
-		     struct inode * inode, struct file * file,
-		     struct vm_area_struct * vma);
+	long long (*llseek)(struct snd_info_entry *entry,
+			    void *file_private_data, struct file *file,
+			    long long offset, int orig);
+	unsigned int(*poll)(struct snd_info_entry *entry,
+			    void *file_private_data, struct file *file,
+			    poll_table *wait);
+	int (*ioctl)(struct snd_info_entry *entry, void *file_private_data,
+		     struct file *file, unsigned int cmd, unsigned long arg);
+	int (*mmap)(struct snd_info_entry *entry, void *file_private_data,
+		    struct inode *inode, struct file *file,
+		    struct vm_area_struct *vma);
 };
 
 struct snd_info_entry {
@@ -106,34 +110,37 @@ void snd_card_info_read_oss(struct snd_info_buffer *buffer);
 static inline void snd_card_info_read_oss(struct snd_info_buffer *buffer) {}
 #endif
 
-int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3)));
+int snd_iprintf(struct snd_info_buffer *buffer, char *fmt, ...) \
+				__attribute__ ((format (printf, 2, 3)));
 int snd_info_init(void);
 int snd_info_done(void);
 
-int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len);
+int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len);
 char *snd_info_get_str(char *dest, char *src, int len);
-struct snd_info_entry *snd_info_create_module_entry(struct module * module,
+struct snd_info_entry *snd_info_create_module_entry(struct module *module,
 					       const char *name,
-					       struct snd_info_entry * parent);
-struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card,
+					       struct snd_info_entry *parent);
+struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card,
 					     const char *name,
-					     struct snd_info_entry * parent);
-void snd_info_free_entry(struct snd_info_entry * entry);
-int snd_info_store_text(struct snd_info_entry * entry);
-int snd_info_restore_text(struct snd_info_entry * entry);
-
-int snd_info_card_create(struct snd_card * card);
-int snd_info_card_register(struct snd_card * card);
-int snd_info_card_free(struct snd_card * card);
-void snd_info_card_disconnect(struct snd_card * card);
-int snd_info_register(struct snd_info_entry * entry);
+					     struct snd_info_entry *parent);
+void snd_info_free_entry(struct snd_info_entry *entry);
+int snd_info_store_text(struct snd_info_entry *entry);
+int snd_info_restore_text(struct snd_info_entry *entry);
+
+int snd_info_card_create(struct snd_card *card);
+int snd_info_card_register(struct snd_card *card);
+int snd_info_card_free(struct snd_card *card);
+void snd_info_card_disconnect(struct snd_card *card);
+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);
+int snd_card_proc_new(struct snd_card *card, const char *name,
+		      struct snd_info_entry **entryp);
 
 static inline void snd_info_set_text_ops(struct snd_info_entry *entry, 
-					 void *private_data,
-					 void (*read)(struct snd_info_entry *, struct snd_info_buffer *))
+	void *private_data,
+	void (*read)(struct snd_info_entry *, struct snd_info_buffer *))
 {
 	entry->private_data = private_data;
 	entry->c.text.read = read;
@@ -146,21 +153,22 @@ int snd_info_check_reserved_words(const char *str);
 #define snd_seq_root NULL
 #define snd_oss_root NULL
 
-static inline int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) { return 0; }
+static inline int snd_iprintf(struct snd_info_buffer *buffer, char *fmt, ...) { return 0; }
 static inline int snd_info_init(void) { return 0; }
 static inline int snd_info_done(void) { return 0; }
 
-static inline int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len) { return 0; }
+static inline int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len) { return 0; }
 static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; }
-static inline struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, struct snd_info_entry * parent) { return NULL; }
-static inline struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card, const char *name, struct snd_info_entry * parent) { return NULL; }
-static inline void snd_info_free_entry(struct snd_info_entry * entry) { ; }
-
-static inline int snd_info_card_create(struct snd_card * card) { return 0; }
-static inline int snd_info_card_register(struct snd_card * card) { return 0; }
-static inline int snd_info_card_free(struct snd_card * card) { return 0; }
-static inline void snd_info_card_disconnect(struct snd_card * card) { }
-static inline int snd_info_register(struct snd_info_entry * entry) { return 0; }
+static inline struct snd_info_entry *snd_info_create_module_entry(struct module *module, const char *name, struct snd_info_entry *parent) { return NULL; }
+static inline struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, const char *name, struct snd_info_entry *parent) { return NULL; }
+static inline void snd_info_free_entry(struct snd_info_entry *entry) { ; }
+
+static inline int snd_info_card_create(struct snd_card *card) { return 0; }
+static inline int snd_info_card_register(struct snd_card *card) { return 0; }
+static inline int snd_info_card_free(struct snd_card *card) { return 0; }
+static inline void snd_info_card_disconnect(struct snd_card *card) { }
+static inline void snd_info_card_id_change(struct snd_card *card) { }
+static inline int snd_info_register(struct snd_info_entry *entry) { return 0; }
 
 static inline int snd_card_proc_new(struct snd_card *card, const char *name,
 				    struct snd_info_entry **entryp) { return -EINVAL; }
diff --git a/sound/core/info.c b/sound/core/info.c
index 527b207462b0..70fa87189f36 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -653,6 +653,23 @@ int snd_info_card_register(struct snd_card *card)
 }
 
 /*
+ * called on card->id change
+ */
+void snd_info_card_id_change(struct snd_card *card)
+{
+	mutex_lock(&info_mutex);
+	if (card->proc_root_link) {
+		snd_remove_proc_entry(snd_proc_root, card->proc_root_link);
+		card->proc_root_link = NULL;
+	}
+	if (strcmp(card->id, card->proc_root->name))
+		card->proc_root_link = proc_symlink(card->id,
+						    snd_proc_root,
+						    card->proc_root->name);
+	mutex_unlock(&info_mutex);
+}
+
+/*
  * de-register the card proc file
  * called from init.c
  */
diff --git a/sound/core/init.c b/sound/core/init.c
index b47ff8b44be8..0d5520c415d3 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -533,6 +533,65 @@ static void choose_default_id(struct snd_card *card)
 	}
 }
 
+#ifndef CONFIG_SYSFS_DEPRECATED
+static ssize_t
+card_id_show_attr(struct device *dev,
+		  struct device_attribute *attr, char *buf)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	return snprintf(buf, PAGE_SIZE, "%s\n", card ? card->id : "(null)");
+}
+
+static ssize_t
+card_id_store_attr(struct device *dev, struct device_attribute *attr,
+		   const char *buf, size_t count)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	char buf1[sizeof(card->id)];
+	size_t copy = count > sizeof(card->id) - 1 ?
+					sizeof(card->id) - 1 : count;
+	size_t idx;
+	int c;
+
+	for (idx = 0; idx < copy; idx++) {
+		c = buf[idx];
+		if (!isalnum(c) && c != '_' && c != '-')
+			return -EINVAL;
+	}
+	memcpy(buf1, buf, copy);
+	buf1[copy] = '\0';
+	mutex_lock(&snd_card_mutex);
+	if (!snd_info_check_reserved_words(buf1)) {
+	     __exist:
+		mutex_unlock(&snd_card_mutex);
+		return -EEXIST;
+	}
+	for (idx = 0; idx < snd_ecards_limit; idx++) {
+		if (snd_cards[idx] && !strcmp(snd_cards[idx]->id, buf1))
+			goto __exist;
+	}
+	strcpy(card->id, buf1);
+	snd_info_card_id_change(card);
+	mutex_unlock(&snd_card_mutex);
+
+	return count;
+}
+
+static struct device_attribute card_id_attrs =
+	__ATTR(id, S_IRUGO | S_IWUSR, card_id_show_attr, card_id_store_attr);
+
+static ssize_t
+card_number_show_attr(struct device *dev,
+		     struct device_attribute *attr, char *buf)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	return snprintf(buf, PAGE_SIZE, "%i\n", card ? card->number : -1);
+}
+
+static struct device_attribute card_number_attrs =
+	__ATTR(number, S_IRUGO, card_number_show_attr, NULL);
+#endif /* CONFIG_SYSFS_DEPRECATED */
+
 /**
  *  snd_card_register - register the soundcard
  *  @card: soundcard structure
@@ -553,7 +612,7 @@ int snd_card_register(struct snd_card *card)
 #ifndef CONFIG_SYSFS_DEPRECATED
 	if (!card->card_dev) {
 		card->card_dev = device_create(sound_class, card->dev,
-					       MKDEV(0, 0), NULL,
+					       MKDEV(0, 0), card,
 					       "card%i", card->number);
 		if (IS_ERR(card->card_dev))
 			card->card_dev = NULL;
@@ -576,6 +635,16 @@ int snd_card_register(struct snd_card *card)
 	if (snd_mixer_oss_notify_callback)
 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);
 #endif
+#ifndef CONFIG_SYSFS_DEPRECATED
+	if (card->card_dev) {
+		err = device_create_file(card->card_dev, &card_id_attrs);
+		if (err < 0)
+			return err;
+		err = device_create_file(card->card_dev, &card_number_attrs);
+		if (err < 0)
+			return err;
+	}
+#endif
 	return 0;
 }
 
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index f87ff0497116..44d0c15e2b71 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -1452,7 +1452,7 @@ static int snd_hdsp_create_midi (struct snd_card *card, struct hdsp *hdsp, int i
 	if (snd_rawmidi_new (card, buf, id, 1, 1, &hdsp->midi[id].rmidi) < 0)
 		return -1;
 
-	sprintf (hdsp->midi[id].rmidi->name, "%s MIDI %d", card->id, id+1);
+	sprintf(hdsp->midi[id].rmidi->name, "HDSP MIDI %d", id+1);
 	hdsp->midi[id].rmidi->private_data = &hdsp->midi[id];
 
 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_hdsp_midi_output);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index d7dd53675ccd..71231cf1b2b0 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -1293,7 +1293,7 @@ static int __devinit snd_hdspm_create_midi (struct snd_card *card,
 	if (err < 0)
 		return err;
 
-	sprintf (hdspm->midi[id].rmidi->name, "%s MIDI %d", card->id, id+1);
+	sprintf(hdspm->midi[id].rmidi->name, "HDSPM MIDI %d", id+1);
 	hdspm->midi[id].rmidi->private_data = &hdspm->midi[id];
 
 	snd_rawmidi_set_ops(hdspm->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,