#include <sys/cdefs.h>
#include "opt_ddb.h"
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/conf.h>
#include <sys/cons.h>
#include <sys/fcntl.h>
#include <sys/kbio.h>
#include <sys/kdb.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/msgbuf.h>
#include <sys/namei.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/queue.h>
#include <sys/reboot.h>
#include <sys/sysctl.h>
#include <sys/sbuf.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <sys/vnode.h>
#include <ddb/ddb.h>
#include <dev/kbd/kbdreg.h>
#include <machine/cpu.h>
#include <machine/clock.h>

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Data Structures
struct	cn_device

Macros
#define	CNDEVPATHMAX 32

#define	CNDEVTAB_SIZE 4

Functions
	__FBSDID ("$FreeBSD$")

static	MALLOC_DEFINE (M_TTYCONS, "tty console", "tty console handling")

static	STAILQ_HEAD (cn_device)

void	cninit (void)

void	cninit_finish ()

int	cnadd (struct consdev *cn)

void	cnremove (struct consdev *cn)

void	cnselect (struct consdev *cn)

void	cnavailable (struct consdev *cn, int available)

int	cnunavailable (void)

static int	sysctl_kern_console (SYSCTL_HANDLER_ARGS)

	SYSCTL_PROC (_kern, OID_AUTO, console, CTLTYPE_STRING\|CTLFLAG_RW\|CTLFLAG_NEEDGIANT, 0, 0, sysctl_kern_console, "A", "Console device control")

void	cngrab ()

void	cnungrab ()

void	cnresume ()

int	cngetc (void)

int	cncheckc (void)

void	cngets (char *cp, size_t size, int visible)

void	cnputc (int c)

void	cnputsn (const char *p, size_t n)

void	cnputs (const char *p)

	SYSCTL_UINT (_kern, OID_AUTO, consmsgbuf_size, CTLFLAG_RWTUN, &consmsgbuf_size, 0, "Console tty buffer size")

int	constty_set (struct tty *tp)

int	constty_clear (struct tty *tp)

	SYSCTL_INT (_kern, OID_AUTO, constty_wakeups_per_second, CTLFLAG_RW, &constty_wakeups_per_second, 0, "Times per second to check for pending console tty messages")

static void	constty_timeout (void *arg)

int	sysbeep (int pitch __unused, sbintime_t duration __unused)

	SYSCTL_STRING (_kern, OID_AUTO, vty, CTLFLAG_RDTUN\|CTLFLAG_NOFETCH, vty_name, 0, "Console vty driver")

int	vty_enabled (unsigned vty)

void	vty_set_preferred (unsigned vty)

Variables
static struct cn_device	cn_devtab [CNDEVTAB_SIZE]

static unsigned int	consmsgbuf_size = 65536

static int	constty_wakeups_per_second = 15

static unsigned	vty_prefer

static char	vty_name [16]

Macro Definition Documentation

◆ CNDEVPATHMAX

#define CNDEVPATHMAX 32

Definition at line 85 of file kern_cons.c.

◆ CNDEVTAB_SIZE

#define CNDEVTAB_SIZE 4

Definition at line 86 of file kern_cons.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ cnadd()

int cnadd ( struct consdev * cn )

Definition at line 208 of file kern_cons.c.

References cn_devtab, cnavailable(), CNDEVTAB_SIZE, printf(), and ttyconsdev_select().

Referenced by cninit(), sysctl_kern_console(), and termcn_cnregister().

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◆ cnavailable()

void cnavailable	(	struct consdev *	cn,
		int	available
	)

Definition at line 289 of file kern_cons.c.

References cn_devtab, and CNDEVTAB_SIZE.

Referenced by cnadd().

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◆ cncheckc()

int cncheckc ( void )

Definition at line 432 of file kern_cons.c.

References kdb_active.

Referenced by cngetc(), dumpsys_cb_dumpdata(), and shutdown_panic().

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◆ cngetc()

int cngetc ( void )

Definition at line 418 of file kern_cons.c.

References cncheckc().

Referenced by cngets(), cnputc(), shutdown_halt(), and shutdown_panic().

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◆ cngets()

void cngets	(	char *	cp,
		size_t	size,
		int	visible
	)

Definition at line 452 of file kern_cons.c.

References cngetc(), cngrab(), cnputc(), cnputs(), and cnungrab().

Referenced by parse_dir_ask().

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◆ cngrab()

void cngrab ( )

Definition at line 376 of file kern_cons.c.

References kdb_active.

Referenced by cngets(), cnputc(), kdb_trap(), kern_reboot(), and vpanic().

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◆ cninit()

void cninit ( void )

Definition at line 133 of file kern_cons.c.

References boothowto, cnadd(), cnremove(), and cnselect().

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◆ cninit_finish()

void cninit_finish ( )

Definition at line 201 of file kern_cons.c.

◆ cnputc()

void cnputc ( int c )

Definition at line 499 of file kern_cons.c.

References cngetc(), cngrab(), cnputc(), cnungrab(), and kdb_active.

Referenced by cngets(), cnputc(), cnputsn(), constty_clear(), prf_putchar(), and putchar().

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◆ cnputs()

void cnputs ( const char * p )

Definition at line 564 of file kern_cons.c.

References cnputsn().

Referenced by cngets(), and prf_putbuf().

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◆ cnputsn()

void cnputsn	(	const char *	p,
		size_t	n
	)

Definition at line 539 of file kern_cons.c.

References cnputc().

Referenced by cnputs(), and sbuf_tty_drain().

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◆ cnremove()

void cnremove ( struct consdev * cn )

Definition at line 239 of file kern_cons.c.

References cn_devtab, CNDEVTAB_SIZE, and ttyconsdev_select().

Referenced by cninit(), and sysctl_kern_console().

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◆ cnresume()

void cnresume ( )

Definition at line 402 of file kern_cons.c.

◆ cnselect()

void cnselect ( struct consdev * cn )

Definition at line 272 of file kern_cons.c.

References ttyconsdev_select().

Referenced by cninit(), and sysctl_kern_console().

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◆ cnunavailable()

int cnunavailable ( void )

Definition at line 309 of file kern_cons.c.

◆ cnungrab()

void cnungrab ( )

Definition at line 389 of file kern_cons.c.

References kdb_active.

Referenced by cngets(), cnputc(), and kdb_trap().

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◆ constty_clear()

int constty_clear ( struct tty * tp )

Definition at line 616 of file kern_cons.c.

References cnputc(), and msgbuf_getchar().

Referenced by constty_timeout(), tty_generic_ioctl(), and ttydev_leave().

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◆ constty_set()

int constty_set ( struct tty * tp )

Definition at line 577 of file kern_cons.c.

References buf, consmsgbuf_size, constty_timeout(), free(), malloc(), and msgbuf_init().

Referenced by tty_generic_ioctl().

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◆ constty_timeout()

static void constty_timeout ( void * arg )

static

Definition at line 640 of file kern_cons.c.

References constty_clear(), constty_timeout(), constty_wakeups_per_second, msgbuf_getchar(), and tty_putchar().

Referenced by constty_set(), and constty_timeout().

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◆ MALLOC_DEFINE()

static MALLOC_DEFINE	(	M_TTYCONS	,
		"tty console"	,
		"tty console handling"
	)

static

◆ STAILQ_HEAD()

static STAILQ_HEAD ( cn_device )

static

Definition at line 88 of file kern_cons.c.

Referenced by ktls_work_thread().

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◆ sysbeep()

int sysbeep	(	int pitch	__unused,
		sbintime_t duration	__unused
	)

Definition at line 706 of file kern_cons.c.

◆ SYSCTL_INT()

SYSCTL_INT	(	_kern	,
		OID_AUTO	,
		constty_wakeups_per_second	,
		CTLFLAG_RW	,
		&	constty_wakeups_per_second,
		0	,
		"Times per second to check for pending console tty messages"
	)

◆ sysctl_kern_console()

static int sysctl_kern_console ( SYSCTL_HANDLER_ARGS )

static

Definition at line 319 of file kern_cons.c.

References cnadd(), CNDEVPATHMAX, cnremove(), cnselect(), sbuf_clear(), sbuf_data(), sbuf_delete(), sbuf_finish(), sbuf_len(), sbuf_new(), sbuf_printf(), and sysctl_handle_string().

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◆ SYSCTL_PROC()

SYSCTL_PROC	(	_kern	,
		OID_AUTO	,
		console	,
		CTLTYPE_STRING\|CTLFLAG_RW\|	CTLFLAG_NEEDGIANT,
		0	,
		0	,
		sysctl_kern_console	,
		"A"	,
		"Console device control"
	)

◆ SYSCTL_STRING()

SYSCTL_STRING	(	_kern	,
		OID_AUTO	,
		vty	,
		CTLFLAG_RDTUN\|	CTLFLAG_NOFETCH,
		vty_name	,
		0	,
		"Console vty driver"
	)

◆ SYSCTL_UINT()

SYSCTL_UINT	(	_kern	,
		OID_AUTO	,
		consmsgbuf_size	,
		CTLFLAG_RWTUN	,
		&	consmsgbuf_size,
		0	,
		"Console tty buffer size"
	)

◆ vty_enabled()

int vty_enabled ( unsigned vty )

Definition at line 723 of file kern_cons.c.

References vty_name, and vty_prefer.

◆ vty_set_preferred()

void vty_set_preferred ( unsigned vty )

Definition at line 762 of file kern_cons.c.

References vty_prefer.

Variable Documentation

◆ cn_devtab

struct cn_device cn_devtab[CNDEVTAB_SIZE]

static

Definition at line 87 of file kern_cons.c.

Referenced by cnadd(), cnavailable(), and cnremove().

◆ consmsgbuf_size

unsigned int consmsgbuf_size = 65536

static

Definition at line 569 of file kern_cons.c.

Referenced by constty_set().

◆ constty_wakeups_per_second

int constty_wakeups_per_second = 15

static

Definition at line 634 of file kern_cons.c.

Referenced by constty_timeout().

◆ vty_name

char vty_name[16]

static

Definition at line 718 of file kern_cons.c.

Referenced by vty_enabled().

◆ vty_prefer

unsigned vty_prefer

static

Definition at line 717 of file kern_cons.c.

Referenced by vty_enabled(), and vty_set_preferred().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ CNDEVPATHMAX

◆ CNDEVTAB_SIZE

Function Documentation

◆ __FBSDID()

◆ cnadd()

◆ cnavailable()

◆ cncheckc()

◆ cngetc()

◆ cngets()

◆ cngrab()

◆ cninit()

◆ cninit_finish()

◆ cnputc()

◆ cnputs()

◆ cnputsn()

◆ cnremove()

◆ cnresume()

◆ cnselect()

◆ cnunavailable()

◆ cnungrab()

◆ constty_clear()

◆ constty_set()

◆ constty_timeout()

◆ MALLOC_DEFINE()

◆ STAILQ_HEAD()

◆ sysbeep()

◆ SYSCTL_INT()

◆ sysctl_kern_console()

◆ SYSCTL_PROC()

◆ SYSCTL_STRING()

◆ SYSCTL_UINT()

◆ vty_enabled()

◆ vty_set_preferred()

Variable Documentation

◆ cn_devtab

◆ consmsgbuf_size

◆ constty_wakeups_per_second

◆ vty_name

◆ vty_prefer