include/linux/stm.h

Source file repositories/reference/linux-study-clean/include/linux/stm.h

File Facts

System
Linux kernel
Corpus path
include/linux/stm.h
Extension
.h
Size
4709 bytes
Lines
144
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct stm_data {
	const char		*name;
	struct stm_device	*stm;
	unsigned int		sw_start;
	unsigned int		sw_end;
	unsigned int		sw_nchannels;
	unsigned int		sw_mmiosz;
	unsigned int		hw_override;
	ssize_t			(*packet)(struct stm_data *, unsigned int,
					  unsigned int, unsigned int,
					  unsigned int, unsigned int,
					  const unsigned char *);
	phys_addr_t		(*mmio_addr)(struct stm_data *, unsigned int,
					     unsigned int, unsigned int);
	int			(*link)(struct stm_data *, unsigned int,
					unsigned int);
	void			(*unlink)(struct stm_data *, unsigned int,
					  unsigned int);
	long			(*set_options)(struct stm_data *, unsigned int,
					       unsigned int, unsigned int,
					       unsigned long);
};

int stm_register_device(struct device *parent, struct stm_data *stm_data,
			struct module *owner);
void stm_unregister_device(struct stm_data *stm_data);

struct stm_source_device;

/**
 * struct stm_source_data - STM source device description and callbacks
 * @name:	device name, will be used for policy lookup
 * @src:	internal structure, only used by stm class code
 * @nr_chans:	number of channels to allocate
 * @type:	type of STM source driver represented by stm_source_type
 * @link:	called when this source gets linked to an STM device
 * @unlink:	called when this source is about to get unlinked from its STM
 *
 * Fill in this structure before calling stm_source_register_device() to
 * register a source device. Also pass it to unregister and write calls.
 */
struct stm_source_data {
	const char		*name;
	struct stm_source_device *src;
	unsigned int		percpu;
	unsigned int		nr_chans;
	unsigned int		type;
	int			(*link)(struct stm_source_data *data);
	void			(*unlink)(struct stm_source_data *data);
};

int stm_source_register_device(struct device *parent,
			       struct stm_source_data *data);
void stm_source_unregister_device(struct stm_source_data *data);

int notrace stm_source_write(struct stm_source_data *data, unsigned int chan,
			     const char *buf, size_t count);

#endif /* _STM_H_ */

Annotation

Implementation Notes