f_fs.c File Reference

#include <linux/blkdev.h>
#include <linux/pagemap.h>
#include <linux/export.h>
#include <linux/hid.h>
#include <asm/unaligned.h>
#include <linux/usb/composite.h>
#include <linux/usb/functionfs.h>

Go to the source code of this file.

Data Structures
struct	ffs_data
struct	ffs_data::ffs_file_perms
struct	ffs_ep
struct	ffs_epfile
struct	ffs_sb_fill_data

Macros
#define	FUNCTIONFS_MAGIC   0xa647361 /* Chosen by a honest dice roll ;) */
#define	pr_vdebug(...)   do { } while (0)
#define	ffs_dump_mem(prefix, ptr, len)   do { } while (0)
#define	ENTER()   pr_vdebug("%s()\n", __func__)
#define	FFS_SETUP_STATE(ffs)
#define	FFS_FL_CALL_CLOSED_CALLBACK   0
#define	FFS_FL_BOUND   1
#define	__entity_check_INTERFACE(val)   1
#define	__entity_check_STRING(val)   (val)
#define	__entity_check_ENDPOINT(val)   ((val) & USB_ENDPOINT_NUMBER_MASK)
#define	__entity(type, val)

Typedefs
typedef int(*	ffs_entity_callback )(enum ffs_entity_type entity, u8 *valuep, struct usb_descriptor_header *desc, void *priv)

Enumerations
enum	ffs_state {   FFS_READ_DESCRIPTORS, FFS_READ_STRINGS, FFS_ACTIVE, FFS_CLOSING,   FFS_READ_DESCRIPTORS, FFS_READ_STRINGS, FFS_ACTIVE, FFS_CLOSING }
enum	ffs_setup_state {   FFS_NO_SETUP, FFS_SETUP_PENDING, FFS_SETUP_CANCELED, FFS_NO_SETUP,   FFS_SETUP_PENDING, FFS_SETUP_CANCELED }
enum	ffs_entity_type {   FFS_DESCRIPTOR, FFS_INTERFACE, FFS_STRING, FFS_ENDPOINT,   FFS_DESCRIPTOR, FFS_INTERFACE, FFS_STRING, FFS_ENDPOINT }

Variables
static int	nonnull

Macro Definition Documentation

#define __entity	(		type,
			val
	)

Value:

do {                    \
        pr_vdebug("entity " #type "(%02x)\n", (val));       \
        if (unlikely(!__entity_check_ ##type(val))) {       \
            pr_vdebug("invalid entity's value\n");      \
            return -EINVAL;                 \
        }                           \
        ret = entity(FFS_ ##type, &val, _ds, priv);     \
        if (unlikely(ret < 0)) {                \
            pr_debug("entity " #type "(%02x); ret = %d\n",  \
                 (val), ret);               \
            return ret;                 \
        }                           \
    } while (0)

#define __entity_check_ENDPOINT

(

val

)

((val) & USB_ENDPOINT_NUMBER_MASK)

#define __entity_check_INTERFACE

(

val

)

1

#define __entity_check_STRING

(

val

)

(val)

#define ENTER

(

)

pr_vdebug("%s()\n", __func__)

Definition at line 49 of file f_fs.c.

#define ffs_dump_mem	(		prefix,
			ptr,
			len
	)		do { } while (0)

Definition at line 46 of file f_fs.c.

#define FFS_FL_BOUND   1

Definition at line 182 of file f_fs.c.

#define FFS_FL_CALL_CLOSED_CALLBACK   0

Definition at line 181 of file f_fs.c.

#define FFS_SETUP_STATE

(

ffs

)

Value:

((enum ffs_setup_state)cmpxchg(&(ffs)->setup_state, \
                       FFS_SETUP_CANCELED, FFS_NO_SETUP))

Definition at line 164 of file f_fs.c.

#define FUNCTIONFS_MAGIC   0xa647361 /* Chosen by a honest dice roll ;) */

Definition at line 31 of file f_fs.c.

#define pr_vdebug

(

...

)

do { } while (0)

Definition at line 44 of file f_fs.c.

Typedef Documentation

typedef int(* ffs_entity_callback)(enum ffs_entity_type entity, u8 *valuep, struct usb_descriptor_header *desc, void *priv)

Definition at line 1611 of file f_fs.c.

Enumeration Type Documentation

enum ffs_entity_type

Enumerator:

FFS_DESCRIPTOR
FFS_INTERFACE
FFS_STRING
FFS_ENDPOINT
FFS_DESCRIPTOR
FFS_INTERFACE
FFS_STRING
FFS_ENDPOINT

Definition at line 1607 of file f_fs.c.

enum ffs_setup_state

Enumerator:

FFS_NO_SETUP
FFS_SETUP_PENDING
FFS_SETUP_CANCELED
FFS_NO_SETUP
FFS_SETUP_PENDING
FFS_SETUP_CANCELED

Definition at line 92 of file f_fs.c.

enum ffs_state

Enumerator:

FFS_READ_DESCRIPTORS
FFS_READ_STRINGS
FFS_ACTIVE
FFS_CLOSING
FFS_READ_DESCRIPTORS
FFS_READ_STRINGS
FFS_ACTIVE
FFS_CLOSING

Definition at line 54 of file f_fs.c.

Variable Documentation

char nonnull

Definition at line 342 of file f_fs.c.