cregit-Linux how code gets into the kernel

Release 4.12 include/linux/serio.h

Directory: include/linux
 * Copyright (C) 1999-2002 Vojtech Pavlik
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
#ifndef _SERIO_H

#define _SERIO_H

#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <uapi/linux/serio.h>

extern struct bus_type serio_bus;

struct serio {
void *port_data;

char name[32];
char phys[32];
char firmware_id[128];

bool manual_bind;

struct serio_device_id id;

	/* Protects critical sections from port's interrupt handler */
spinlock_t lock;

int (*write)(struct serio *, unsigned char);
int (*open)(struct serio *);
void (*close)(struct serio *);
int (*start)(struct serio *);
void (*stop)(struct serio *);

struct serio *parent;
	/* Entry in parent->children list */
struct list_head child_node;
struct list_head children;
	/* Level of nesting in serio hierarchy */
unsigned int depth;

         * serio->drv is accessed from interrupt handlers; when modifying
         * caller should acquire serio->drv_mutex and serio->lock.
struct serio_driver *drv;
	/* Protects serio->drv so attributes can pin current driver */
struct mutex drv_mutex;

struct device dev;

struct list_head node;

         * For use by PS/2 layer when several ports share hardware and
         * may get indigestion when exposed to concurrent access (i8042).
struct mutex *ps2_cmd_mutex;

#define to_serio_port(d)	container_of(d, struct serio, dev)

struct serio_driver {
const char *description;

const struct serio_device_id *id_table;
bool manual_bind;

void (*write_wakeup)(struct serio *);
irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
int  (*connect)(struct serio *, struct serio_driver *drv);
int  (*reconnect)(struct serio *);
int  (*fast_reconnect)(struct serio *);
void (*disconnect)(struct serio *);
void (*cleanup)(struct serio *);

struct device_driver driver;

#define to_serio_driver(d)	container_of(d, struct serio_driver, driver)

int serio_open(struct serio *serio, struct serio_driver *drv);
void serio_close(struct serio *serio);
void serio_rescan(struct serio *serio);
void serio_reconnect(struct serio *serio);
irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags);

void __serio_register_port(struct serio *serio, struct module *owner);

/* use a define to avoid include chaining to get THIS_MODULE */

#define serio_register_port(serio) \
	__serio_register_port(serio, THIS_MODULE)

void serio_unregister_port(struct serio *serio);
void serio_unregister_child_port(struct serio *serio);

int __must_check __serio_register_driver(struct serio_driver *drv,
				struct module *owner, const char *mod_name);

/* use a define to avoid include chaining to get THIS_MODULE & friends */

#define serio_register_driver(drv) \
	__serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)

void serio_unregister_driver(struct serio_driver *drv);

 * module_serio_driver() - Helper macro for registering a serio driver
 * @__serio_driver: serio_driver struct
 * Helper macro for serio drivers which do not do anything special in
 * module init/exit. This eliminates a lot of boilerplate. Each module
 * may only use this macro once, and calling it replaces module_init()
 * and module_exit().

#define module_serio_driver(__serio_driver) \
	module_driver(__serio_driver, serio_register_driver, \

static inline int serio_write(struct serio *serio, unsigned char data) { if (serio->write) return serio->write(serio, data); else return -1; }


Linus Torvalds (pre-git)2567.57%133.33%
Vojtech Pavlik1129.73%133.33%
Dmitry Torokhov12.70%133.33%

static inline void serio_drv_write_wakeup(struct serio *serio) { if (serio->drv && serio->drv->write_wakeup) serio->drv->write_wakeup(serio); }


Vojtech Pavlik2884.85%133.33%
Dmitry Torokhov515.15%266.67%

/* * Use the following functions to manipulate serio's per-port * driver-specific data. */
static inline void *serio_get_drvdata(struct serio *serio) { return dev_get_drvdata(&serio->dev); }


Dmitry Torokhov22100.00%2100.00%

static inline void serio_set_drvdata(struct serio *serio, void *data) { dev_set_drvdata(&serio->dev, data); }


Dmitry Torokhov26100.00%2100.00%

/* * Use the following functions to protect critical sections in * driver code from port's interrupt handler */
static inline void serio_pause_rx(struct serio *serio) { spin_lock_irq(&serio->lock); }


Dmitry Torokhov20100.00%2100.00%

static inline void serio_continue_rx(struct serio *serio) { spin_unlock_irq(&serio->lock); }


Dmitry Torokhov20100.00%2100.00%


Overall Contributors

Dmitry Torokhov25141.22%2353.49%
Linus Torvalds (pre-git)17628.90%12.33%
Vojtech Pavlik10316.91%818.60%
Greg Kroah-Hartman233.78%12.33%
Paul Gortmaker111.81%12.33%
Axel Lin91.48%12.33%
Dmitry Baryshkov81.31%12.33%
Hans de Goede60.99%12.33%
Arjan van de Ven50.82%12.33%
Stephen Chandler Paul50.82%12.33%
David Howells40.66%12.33%
Jiri Kosina40.66%12.33%
Andrew Morton20.33%12.33%
Akinobu Mita20.33%12.33%
Directory: include/linux
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