Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 457 insertions, 0 deletions

diff --git a/include/sound/core.h b/include/sound/core.h
new file mode 100644
index 000000000..85610ede9
--- /dev/null
+++ b/include/sound/core.h
@@ -0,0 +1,457 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __SOUND_CORE_H
+#define __SOUND_CORE_H
+
+/*
+ *  Main header file for the ALSA driver
+ *  Copyright (c) 1994-2001 by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <linux/device.h>
+#include <linux/sched.h>		/* wake_up() */
+#include <linux/mutex.h>		/* struct mutex */
+#include <linux/rwsem.h>		/* struct rw_semaphore */
+#include <linux/pm.h>			/* pm_message_t */
+#include <linux/stringify.h>
+#include <linux/printk.h>
+
+/* number of supported soundcards */
+#ifdef CONFIG_SND_DYNAMIC_MINORS
+#define SNDRV_CARDS CONFIG_SND_MAX_CARDS
+#else
+#define SNDRV_CARDS 8		/* don't change - minor numbers */
+#endif
+
+#define CONFIG_SND_MAJOR	116	/* standard configuration */
+
+/* forward declarations */
+struct pci_dev;
+struct module;
+struct completion;
+
+/* device allocation stuff */
+
+/* type of the object used in snd_device_*()
+ * this also defines the calling order
+ */
+enum snd_device_type {
+	SNDRV_DEV_LOWLEVEL,
+	SNDRV_DEV_INFO,
+	SNDRV_DEV_BUS,
+	SNDRV_DEV_CODEC,
+	SNDRV_DEV_PCM,
+	SNDRV_DEV_COMPRESS,
+	SNDRV_DEV_RAWMIDI,
+	SNDRV_DEV_TIMER,
+	SNDRV_DEV_SEQUENCER,
+	SNDRV_DEV_HWDEP,
+	SNDRV_DEV_JACK,
+	SNDRV_DEV_CONTROL,	/* NOTE: this must be the last one */
+};
+
+enum snd_device_state {
+	SNDRV_DEV_BUILD,
+	SNDRV_DEV_REGISTERED,
+	SNDRV_DEV_DISCONNECTED,
+};
+
+struct snd_device;
+
+struct snd_device_ops {
+	int (*dev_free)(struct snd_device *dev);
+	int (*dev_register)(struct snd_device *dev);
+	int (*dev_disconnect)(struct snd_device *dev);
+};
+
+struct snd_device {
+	struct list_head list;		/* list of registered devices */
+	struct snd_card *card;		/* card which holds this device */
+	enum snd_device_state state;	/* state of the device */
+	enum snd_device_type type;	/* device type */
+	void *device_data;		/* device structure */
+	const struct snd_device_ops *ops;	/* operations */
+};
+
+#define snd_device(n) list_entry(n, struct snd_device, list)
+
+/* main structure for soundcard */
+
+struct snd_card {
+	int number;			/* number of soundcard (index to
+								snd_cards) */
+
+	char id[16];			/* id string of this card */
+	char driver[16];		/* driver name */
+	char shortname[32];		/* short name of this soundcard */
+	char longname[80];		/* name of this soundcard */
+	char irq_descr[32];		/* Interrupt description */
+	char mixername[80];		/* mixer name */
+	char components[128];		/* card components delimited with
+								space */
+	struct module *module;		/* top-level module */
+
+	void *private_data;		/* private data for soundcard */
+	void (*private_free) (struct snd_card *card); /* callback for freeing of
+								private data */
+	struct list_head devices;	/* devices */
+
+	struct device ctl_dev;		/* control device */
+	unsigned int last_numid;	/* last used numeric ID */
+	struct rw_semaphore controls_rwsem;	/* controls list lock */
+	rwlock_t ctl_files_rwlock;	/* ctl_files list lock */
+	int controls_count;		/* count of all controls */
+	int user_ctl_count;		/* count of all user controls */
+	struct list_head controls;	/* all controls for this card */
+	struct list_head ctl_files;	/* active control files */
+
+	struct snd_info_entry *proc_root;	/* root for soundcard specific files */
+	struct proc_dir_entry *proc_root_link;	/* number link to real id */
+
+	struct list_head files_list;	/* all files associated to this card */
+	struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown
+								state */
+	spinlock_t files_lock;		/* lock the files for this card */
+	int shutdown;			/* this card is going down */
+	struct completion *release_completion;
+	struct device *dev;		/* device assigned to this card */
+	struct device card_dev;		/* cardX object for sysfs */
+	const struct attribute_group *dev_groups[4]; /* assigned sysfs attr */
+	bool registered;		/* card_dev is registered? */
+	int sync_irq;			/* assigned irq, used for PCM sync */
+	wait_queue_head_t remove_sleep;
+
+	size_t total_pcm_alloc_bytes;	/* total amount of allocated buffers */
+	struct mutex memory_mutex;	/* protection for the above */
+
+#ifdef CONFIG_PM
+	unsigned int power_state;	/* power state */
+	wait_queue_head_t power_sleep;
+#endif
+
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
+	struct snd_mixer_oss *mixer_oss;
+	int mixer_oss_change_count;
+#endif
+};
+
+#define dev_to_snd_card(p)	container_of(p, struct snd_card, card_dev)
+
+#ifdef CONFIG_PM
+static inline unsigned int snd_power_get_state(struct snd_card *card)
+{
+	return card->power_state;
+}
+
+static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
+{
+	card->power_state = state;
+	wake_up(&card->power_sleep);
+}
+
+/* init.c */
+int snd_power_wait(struct snd_card *card, unsigned int power_state);
+
+#else /* ! CONFIG_PM */
+
+static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; }
+#define snd_power_get_state(card)	({ (void)(card); SNDRV_CTL_POWER_D0; })
+#define snd_power_change_state(card, state)	do { (void)(card); } while (0)
+
+#endif /* CONFIG_PM */
+
+struct snd_minor {
+	int type;			/* SNDRV_DEVICE_TYPE_XXX */
+	int card;			/* card number */
+	int device;			/* device number */
+	const struct file_operations *f_ops;	/* file operations */
+	void *private_data;		/* private data for f_ops->open */
+	struct device *dev;		/* device for sysfs */
+	struct snd_card *card_ptr;	/* assigned card instance */
+};
+
+/* return a device pointer linked to each sound device as a parent */
+static inline struct device *snd_card_get_device_link(struct snd_card *card)
+{
+	return card ? &card->card_dev : NULL;
+}
+
+/* sound.c */
+
+extern int snd_major;
+extern int snd_ecards_limit;
+extern struct class *sound_class;
+
+void snd_request_card(int card);
+
+void snd_device_initialize(struct device *dev, struct snd_card *card);
+
+int snd_register_device(int type, struct snd_card *card, int dev,
+			const struct file_operations *f_ops,
+			void *private_data, struct device *device);
+int snd_unregister_device(struct device *dev);
+void *snd_lookup_minor_data(unsigned int minor, int type);
+
+#ifdef CONFIG_SND_OSSEMUL
+int snd_register_oss_device(int type, struct snd_card *card, int dev,
+			    const struct file_operations *f_ops, void *private_data);
+int snd_unregister_oss_device(int type, struct snd_card *card, int dev);
+void *snd_lookup_oss_minor_data(unsigned int minor, int type);
+#endif
+
+int snd_minor_info_init(void);
+
+/* sound_oss.c */
+
+#ifdef CONFIG_SND_OSSEMUL
+int snd_minor_info_oss_init(void);
+#else
+static inline int snd_minor_info_oss_init(void) { return 0; }
+#endif
+
+/* memory.c */
+
+int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
+int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);
+
+/* init.c */
+
+int snd_card_locked(int card);
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
+#define SND_MIXER_OSS_NOTIFY_REGISTER	0
+#define SND_MIXER_OSS_NOTIFY_DISCONNECT	1
+#define SND_MIXER_OSS_NOTIFY_FREE	2
+extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd);
+#endif
+
+int snd_card_new(struct device *parent, int idx, const char *xid,
+		 struct module *module, int extra_size,
+		 struct snd_card **card_ret);
+
+int snd_card_disconnect(struct snd_card *card);
+void snd_card_disconnect_sync(struct snd_card *card);
+int snd_card_free(struct snd_card *card);
+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_add_dev_attr(struct snd_card *card,
+			  const struct attribute_group *group);
+int snd_component_add(struct snd_card *card, const char *component);
+int snd_card_file_add(struct snd_card *card, struct file *file);
+int snd_card_file_remove(struct snd_card *card, struct file *file);
+
+struct snd_card *snd_card_ref(int card);
+
+/**
+ * snd_card_unref - Unreference the card object
+ * @card: the card object to unreference
+ *
+ * Call this function for the card object that was obtained via snd_card_ref()
+ * or snd_lookup_minor_data().
+ */
+static inline void snd_card_unref(struct snd_card *card)
+{
+	put_device(&card->card_dev);
+}
+
+#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr))
+
+/* device.c */
+
+int snd_device_new(struct snd_card *card, enum snd_device_type type,
+		   void *device_data, const struct snd_device_ops *ops);
+int snd_device_register(struct snd_card *card, void *device_data);
+int snd_device_register_all(struct snd_card *card);
+void snd_device_disconnect(struct snd_card *card, void *device_data);
+void snd_device_disconnect_all(struct snd_card *card);
+void snd_device_free(struct snd_card *card, void *device_data);
+void snd_device_free_all(struct snd_card *card);
+int snd_device_get_state(struct snd_card *card, void *device_data);
+
+/* isadma.c */
+
+#ifdef CONFIG_ISA_DMA_API
+#define DMA_MODE_NO_ENABLE	0x0100
+
+void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
+void snd_dma_disable(unsigned long dma);
+unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
+#endif
+
+/* misc.c */
+struct resource;
+void release_and_free_resource(struct resource *res);
+
+/* --- */
+
+/* sound printk debug levels */
+enum {
+	SND_PR_ALWAYS,
+	SND_PR_DEBUG,
+	SND_PR_VERBOSE,
+};
+
+#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
+__printf(4, 5)
+void __snd_printk(unsigned int level, const char *file, int line,
+		  const char *format, ...);
+#else
+#define __snd_printk(level, file, line, format, ...) \
+	printk(format, ##__VA_ARGS__)
+#endif
+
+/**
+ * snd_printk - printk wrapper
+ * @fmt: format string
+ *
+ * Works like printk() but prints the file and the line of the caller
+ * when configured with CONFIG_SND_VERBOSE_PRINTK.
+ */
+#define snd_printk(fmt, ...) \
+	__snd_printk(0, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
+
+#ifdef CONFIG_SND_DEBUG
+/**
+ * snd_printd - debug printk
+ * @fmt: format string
+ *
+ * Works like snd_printk() for debugging purposes.
+ * Ignored when CONFIG_SND_DEBUG is not set.
+ */
+#define snd_printd(fmt, ...) \
+	__snd_printk(1, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
+#define _snd_printd(level, fmt, ...) \
+	__snd_printk(level, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
+
+/**
+ * snd_BUG - give a BUG warning message and stack trace
+ *
+ * Calls WARN() if CONFIG_SND_DEBUG is set.
+ * Ignored when CONFIG_SND_DEBUG is not set.
+ */
+#define snd_BUG()		WARN(1, "BUG?\n")
+
+/**
+ * snd_printd_ratelimit - Suppress high rates of output when
+ * 			  CONFIG_SND_DEBUG is enabled.
+ */
+#define snd_printd_ratelimit() printk_ratelimit()
+
+/**
+ * snd_BUG_ON - debugging check macro
+ * @cond: condition to evaluate
+ *
+ * Has the same behavior as WARN_ON when CONFIG_SND_DEBUG is set,
+ * otherwise just evaluates the conditional and returns the value.
+ */
+#define snd_BUG_ON(cond)	WARN_ON((cond))
+
+#else /* !CONFIG_SND_DEBUG */
+
+__printf(1, 2)
+static inline void snd_printd(const char *format, ...) {}
+__printf(2, 3)
+static inline void _snd_printd(int level, const char *format, ...) {}
+
+#define snd_BUG()			do { } while (0)
+
+#define snd_BUG_ON(condition) ({ \
+	int __ret_warn_on = !!(condition); \
+	unlikely(__ret_warn_on); \
+})
+
+static inline bool snd_printd_ratelimit(void) { return false; }
+
+#endif /* CONFIG_SND_DEBUG */
+
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+/**
+ * snd_printdd - debug printk
+ * @format: format string
+ *
+ * Works like snd_printk() for debugging purposes.
+ * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
+ */
+#define snd_printdd(format, ...) \
+	__snd_printk(2, __FILE__, __LINE__, format, ##__VA_ARGS__)
+#else
+__printf(1, 2)
+static inline void snd_printdd(const char *format, ...) {}
+#endif
+
+
+#define SNDRV_OSS_VERSION         ((3<<16)|(8<<8)|(1<<4)|(0))	/* 3.8.1a */
+
+/* for easier backward-porting */
+#if IS_ENABLED(CONFIG_GAMEPORT)
+#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev))
+#define gameport_set_port_data(gp,r) ((gp)->port_data = (r))
+#define gameport_get_port_data(gp) (gp)->port_data
+#endif
+
+/* PCI quirk list helper */
+struct snd_pci_quirk {
+	unsigned short subvendor;	/* PCI subvendor ID */
+	unsigned short subdevice;	/* PCI subdevice ID */
+	unsigned short subdevice_mask;	/* bitmask to match */
+	int value;			/* value */
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+	const char *name;		/* name of the device (optional) */
+#endif
+};
+
+#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev)	\
+	.subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask)
+#define _SND_PCI_QUIRK_ID(vend, dev) \
+	_SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev)
+#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+#define SND_PCI_QUIRK(vend,dev,xname,val) \
+	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev),			\
+			.value = (val), .name = (xname)}
+#define snd_pci_quirk_name(q)	((q)->name)
+#else
+#define SND_PCI_QUIRK(vend,dev,xname,val) \
+	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)}
+#define snd_pci_quirk_name(q)	""
+#endif
+
+#ifdef CONFIG_PCI
+const struct snd_pci_quirk *
+snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list);
+
+const struct snd_pci_quirk *
+snd_pci_quirk_lookup_id(u16 vendor, u16 device,
+			const struct snd_pci_quirk *list);
+#else
+static inline const struct snd_pci_quirk *
+snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
+{
+	return NULL;
+}
+
+static inline const struct snd_pci_quirk *
+snd_pci_quirk_lookup_id(u16 vendor, u16 device,
+			const struct snd_pci_quirk *list)
+{
+	return NULL;
+}
+#endif
+
+/* async signal helpers */
+struct snd_fasync;
+
+int snd_fasync_helper(int fd, struct file *file, int on,
+		      struct snd_fasync **fasyncp);
+void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll);
+void snd_fasync_free(struct snd_fasync *fasync);
+
+#endif /* __SOUND_CORE_H */