Merge branch 'for-next/pstore'

Merge branch 'for-next/misc'

readline: Fix potential buffer overflow in command history ...

Cursor up copies the last line into the buffer without checking if it
fits into the current buffer. Fix this using safe_strncpy.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

readline: Fix potential buffer overflow ...

cread_add_char doesn't take the trailing '\0' into account, so adding
it at the end of readline can overflow the buffer.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootstrap: constify strings ...

Various parameters for device names, etc.  should be const strings.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootstrap: Boot barebox with kernel calling convention ...

In commit 8e3ddc1 the bootm code was
changed to boot barebox using the same calling convention as the
kernel.  Which on ARM is to pass three arguments which are zero, an
architecture code, and a params pointer.

A 2nd stage barebox can be booted using lib/bootstrap, which is
different code from bootm.  This code just leaves garbage in the first
three parameters and so doesn't follow the convention.

Change it to be compatible with the ARM kernel booting convention.
This just sends a zero for the architecture, since the code for
architectures depends on boot[zmu] and something using bootstrap
wouldn't have those too.  And it just passes NULL for the params since
we don't have a way to pass a device tree from the preloader.

All users of bootstrap are ARM based, but the code is in lib so a
non-ARM board might someday make use of it.  If the current code would
work for them, then the change here will be ok too.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Import reed solomon code from kernel ...

reed solomon code is used by RAMOOPS to check and fix data stored in
volatile memory.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

vsprintf: Add scnprintf from kernel ...

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

font: fbconsole: add custom font supports ...

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

make_directory: fix warning: no previous prototype ...

Signed-off-by: Sergey Koshechkin <serge.koshechkin@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: readline support ctrl-l to clear screen ...

maybe it is easier to press ctrl-l to clear the screen than type
'clear' command.

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fbconsole: register fonts dynamically ...

Instead of having a fixed array of fonts register the fonts dynamically.
This allows easier adding of fonts to the tree since only one file per
font has to be added and no other files modified.

Currently we have to register the fonts very early before the first
framebuffer is registered. This is because of our limited
dev_add_param_enum() which wants to know the number of elements when
called, so we can't add elements once after we've called
dev_add_param_enum(). Maybe a dev_add_param_array() has to be created
whithout this limitation, but that's left for a future exercise.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

graphics_utils: check for valid framebuffer before creating a screen ...

Otherwise we crash later when we try to print on that screen.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: fix coding style ...

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

logo: Makefile: remove debug output ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

logo: Kconfig: make BAREBOX_LOGO_* depend on BAREBOX_LOGO ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/param'

Merge branch 'for-next/misc'

param_enum: protect against invalid values ...

Since dev_add_param_enum is passed a pointer containing the actual value
it can contain an invalid value. Protect against it so that we do not
access invalid array elements.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

param_enum: Make name strings const ...

Not only the array containing the pointers should be const but
also the strings themselves, so instead of using const char **
use const char * const *.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gui: implement blitting screen areas ...

So far we only supported blitting the whole screen from the shadow
fb to the framebuffer. Add a function to blit areas.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gui: Use fb provided shadowfb for offscreen rendering ...

The fb core now has builtin support for offscreen rendering, use
this and drop offscreen handling in the gui code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fb: return original fb_info in FBIOGET_SCREENINFO ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: libfile: Do not ignore errors in close() ...

Some character devices may perform meaningful operations in their
implementation of close() -- a good example would be socfpga.c which
checks if the FPGA was programmed succesfully in it's close() method
-- so ignoring return value of this call may cause false positives in
checking exit status for success.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/logo'

Merge branch 'for-next/fbcon'

xfuncs: add wrapper for wchar strdup functions ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

xfuncs: add xasprintf() and xvasprintf() ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>