linux-toradex.git/include/linux/console.h, branch v2.6.26-rc5

Basic braille screen reader support

2008-04-30T15:29:52+00:00

This adds a minimalistic braille screen reader support.  This is meant to
be used by blind people e.g.  on boot failures or when / cannot be mounted
etc and thus the userland screen readers can not work.

[akpm@linux-foundation.org: fix exports]
Signed-off-by: Samuel Thibault 
Cc: Jiri Kosina 
Cc: Dmitry Torokhov 
Acked-by: Alan Cox 
Cc: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

serial: turn serial console suspend a boot rather than compile time option

2007-10-18T21:37:19+00:00

Currently, there's a CONFIG_DISABLE_CONSOLE_SUSPEND that allows one to stop
the serial console from being suspended when the rest of the machine goes
to sleep.  This is incredibly useful for debugging power management-related
things; however, having it as a compile-time option has proved to be
incredibly inconvenient for us (OLPC).  There are plenty of times that we
want serial console to not suspend, but for the most part we'd like serial
console to be suspended.

This drops CONFIG_DISABLE_CONSOLE_SUSPEND, and replaces it with a kernel
boot parameter (no_console_suspend).  By default, the serial console will
be suspended along with the rest of the system; by passing
'no_console_suspend' to the kernel during boot, serial console will remain
alive during suspend.

For now, this is pretty serial console specific; further fixes could be
applied to make this work for things like netconsole.

Signed-off-by: Andres Salomon 
Acked-by: "Rafael J. Wysocki" 
Acked-by: Pavel Machek 
Cc: Nigel Cunningham 
Cc: Russell King 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt/vgacon: Check if screen resize request comes from userspace

2007-10-16T16:43:20+00:00

Various console drivers are able to resize the screen via the con_resize()
hook.  This hook is also visible in userspace via the TIOCWINSZ, VT_RESIZE and
VT_RESIZEX ioctl's.  One particular utility, SVGATextMode, expects that
con_resize() of the VGA console will always return success even if the
resulting screen is not compatible with the hardware.  However, this
particular behavior of the VGA console, as reported in Kernel Bugzilla Bug
7513, can cause undefined behavior if the user starts with a console size
larger than 80x25.

To work around this problem, add an extra parameter to con_resize().  This
parameter is ignored by drivers except for vgacon.  If this parameter is
non-zero, then the resize request came from a VT_RESIZE or VT_RESIZEX ioctl
and vgacon will always return success.  If this parameter is zero, vgacon will
return -EINVAL if the requested size is not compatible with the hardware.  The
latter is the more correct behavior.

With this change, SVGATextMode should still work correctly while in-kernel and
stty resize calls can expect correct behavior from vgacon.

Signed-off-by: Antonino Daplas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove unnecessary includes of spinlock.h under include/linux

2007-07-16T16:05:42+00:00

Remove the obviously unnecessary includes of  under the
include/linux/ directory, and fix the couple errors that are introduced as
a result of that.

Signed-off-by: Robert P. J. Day 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

serial: convert early_uart to earlycon for 8250

2007-07-16T16:05:35+00:00

Beacuse SERIAL_PORT_DFNS is removed from include/asm-i386/serial.h and
include/asm-x86_64/serial.h.  the serial8250_ports need to be probed late in
serial initializing stage.  the console_init=>serial8250_console_init=>
register_console=>serial8250_console_setup will return -ENDEV, and console
ttyS0 can not be enabled at that time.  need to wait till uart_add_one_port in
drivers/serial/serial_core.c to call register_console to get console ttyS0.
that is too late.

Make early_uart to use early_param, so uart console can be used earlier.  Make
it to be bootconsole with CON_BOOT flag, so can use console handover feature.
and it will switch to corresponding normal serial console automatically.

new command line will be:
	console=uart8250,io,0x3f8,9600n8
	console=uart8250,mmio,0xff5e0000,115200n8
or
	earlycon=uart8250,io,0x3f8,9600n8
	earlycon=uart8250,mmio,0xff5e0000,115200n8

it will print in very early stage:
	Early serial console at I/O port 0x3f8 (options '9600n8')
	console [uart0] enabled
later for console it will print:
	console handover: boot [uart0] -> real [ttyS0]

Signed-off-by: 
Cc: Andi Kleen 
Cc: Bjorn Helgaas 
Cc: Russell King 
Cc: Gerd Hoffmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt: add color support to the "underline" and "italic" attributes

2007-05-08T18:15:27+00:00

Add color support to the "underline" and "italic" attributes as in
OpenBSD/NetBSD-style (vt220) and xterm.

Signed-off-by: Jan Engelhardt 
Acked-by: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

enlarge console.name

2007-05-08T18:15:04+00:00

console.name[] is eight chars, but so is "earlyvga".  So when we try to print
console->name when using earlyvga it runs off the end of the string.

Make it bigger.

Diagnosed-by: Gerd Hoffmann 

Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] drivers/char/vc_screen.c: proper prototypes

2007-02-11T18:51:27+00:00

Add proper prototypes for two functions in drivers/char/vc_screen.c

Signed-off-by: Adrian Bunk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] vt: proper prototypes for some console functions

2006-10-03T15:04:12+00:00

This patch adds proper prototypes to header files for three console init
functions used on drivers/char/vt.c

Signed-off-by: Adrian Bunk 
Signed-off-by: Antonino Daplas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] PM: make it possible to disable console suspending

2006-09-26T15:49:03+00:00

Change suspend_console() so that it waits for all consoles to flush the
remaining messages and make it possible to switch the console suspending off
with the help of a Kconfig option.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Cc: Stefan Seyfried 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds