When an LCD driver is actually driving a regular external display, e.g.
an HDMI monitor, the display resolution might not be known until the
display controller has initialized, i.e. during lcd_ctrl_init(). However,
lcd.c calculates lcd_line_length before calling this function, thus
relying on a hard-coded resolution in struct panel_info.
Instead, defer this calculation until after lcd_ctrl_init() has had the
chance to dynamically determine the resolution. This needs to happen
before lcd_clear(), since the value is used there.
grep indicates that no code outside lcd.c uses this lcd_line_length; in
particular, no lcd_ctrl_init() implementations read it.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
On some architectures certain values of splashimage will lead to
a data abort exception.
Document the problem, and implement a callback for splashimage to
reject such values.
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Currently there is no logical place to put the code that prepares the
splash image data. The splash image data should be ready in memory
before bmp_display() is called, and after the environment is ready
(since lcd.c looks for the splash image in an address specified by
the environment variable "splashimage").
Our window of opportunity in board_init_r() is therefore: between
env_relocate() and bmp_display(), and from the available options
only the lcd related functions in drv_lcd_init() seem appropriate
for such lcd oriented code.
Add the option to prepare the splash image data in lcd_logo() right
before it is sent to be displayed.
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Commit fb6a9aab7a (LCD: display 32bpp decompressed bitmap image)
broke the check that allowed U-Boot to display 8 bpp BMPs on a 16
bpp LCD screen, effectively turning this feature off.
Restore this feature by changing the check back to the same meaning
it originally had.
To avoid future confusion, the check has also been rephrased to make
its meaning clear.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
When the cursor position gets to the end of the LCD console we normally
scroll by one line. This adds an option to increase that value.
Console scrolling is often slow, and if a large amount of output is
being sent, increasing this option to 10 or so will speed things up
considerably.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This provides an option for the LCD to flush the dcache after each update
(puts, scroll or clear).
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The normal alignment is PAGE_SIZE, but if this is defined, we can support
other alignments.
The motivation for this change is to make the display section-aligned on
ARM so that we can easily turn off data caching for the frame buffer region
without resorting to level 2 page tables.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Add support for drawing compressed RLE8 bitmaps.
Reference: http://www.digicamsoft.com/bmp/bmp.html
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Che-Liang Chiou <clchiou@chromium.org>
[agust: fix some minor style issues and build warnings]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This change fixed 2 things:
- Rename padded_line to padded_width since it is (width + padded_row) not line.
- When finished a line, should skip the padded_row that is
(padded_width - width) instead of (width - padded_width).
Reference: http://en.wikipedia.org/wiki/BMP_file_format
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Create a basic API to provide access to lcd parameters such as screen
size, and to position the cursor on the screen.
This matches up with the video API for the same purpose. Unfortunately
they are not yet combined.
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
If the bmp pointer is null then U-Boot will get stuck when trying
to load the image.
What's worse, it will get stuck before the U-Boot shell becomes
available to the user, thus making it difficult to correct the
situation.
To protect from the above scenario, check if the pointer is valid.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Move highly platform dependant code into its own functions to reduce the
number of #ifdefs in lcd_display_bitmap
To avoid breaking the mcc200 board which does not #define
CONFIG_CMD_BMP, this patch also implements bmp_display() for mcc200.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Move highly platform dependant code into its own function to reduce the
number of #ifdefs in the bigger functions
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Simplify lcd_display by centralizing code into a funciton
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Simplify lcd_logo by extracting bmp unzip into its own function.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
While video_font.h is useful even without referencing the font data, it
is not possible to be included multiple times because it defines font
data array right in the header.
This patch splits the font data array into video_font_data.h and so now
video_font.h can be included multiple times. This at least solves the
code duplication in board/mcc200/lcd.c.
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
The generated header bmp_logo.h is useful even outside common/lcd.c for
the logo dimension. However, the problem is, the generated bmp_logo.h
cannot be included multiple times because bmp_logo_palette[] and
bmp_logo_bitmap[] are defined in the bmp_logo.h.
This patch fixes this by defining these arrays in another header
bmp_logo_data.h and in bmp_logo.h only declaring these arrays.
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
The functions for clearing and drawing bitmaps on the screen were not
exposed publicly and are made public in this patch in preparation for
implementing the display interface of api_public.h.
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
lcd.c: In function ‘lcd_drawchars’:
lcd.c:214:9: warning: variable ‘off’ set but not used
[-Wunused-but-set-variable]
lcd.c: In function ‘lcd_display_bitmap’:
lcd.c:617:16: warning: variable ‘compression’ set but not used
[-Wunused-but-set-variable]
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
CONFIG_SPLASH_SCREEN_ALIGN makes uboot support display
offset for splashimage. The framebuffer writing address
should be calculated according to different kinds of
framebuffer pixel format, i.e., bits per pixel value.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands. Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".
This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:
int main (int argc, char **argv)
{
while (--argc > 0 && **++argv == '-') {
/* ====> */ while (*++*argv) {
switch (**argv) {
case 'd':
debug++;
break;
...
default:
usage ();
}
}
}
...
}
The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell. With the modification, the compiler will prevent this with
an
error: increment of read-only location '*argv'
N.B.: The code above can be trivially rewritten like this:
while (--argc > 0 && **++argv == '-') {
char *arg = *argv;
while (*++arg) {
switch (*arg) {
...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Support for 16bpp was supposed to be in the code but was not working.
This makes it work and has been tested in the nhk8815 board.
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Not all boards defining LCD_COLOR16 are able to set
lcd_color_fg/lcd_color_bg correctly. The issue seems to
be caused by CONFIG_ATMEL_LCD ifdefs in lcd_setfgcolor()
and lcd_setbgcolor(). Actually, the color values passed
to these functions are already correct, we don't need
to fix them. So remove ifdefs here.
Reported-by: Alessandro Rubini <rubini@unipv.it>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This moves some extern declaration from lcd.c to lcd.h, removing
unneeded ifdef around a pair of them. Additionally, since
gunzip_bmp() was declared static in cmd_bmp.c but extern in lcd.c, I
removed the static. The extra "#include <lcd.h>" in cmd_bmp.c is
added to ensure the header is consistent with the source.
This has been compile-tested on both ARM (at91 boards) and PowerPC
(HH405_config, TQM823L_LCD_config, mcc200_config), to test all use
combinations.
Signed-off-by: Alessandro Rubini <rubini@gnudd.it>
[agust@denx.de: removed gunzip_bmp() fixes as commit c01171ea did it]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
So far the console API uses the following naming convention:
======Extract======
typedef struct device_t;
int device_register (device_t * dev);
int devices_init (void);
int device_deregister(char *devname);
struct list_head* device_get_list(void);
device_t* device_get_by_name(char* name);
device_t* device_clone(device_t *dev);
=======
which is too generic and confusing.
Instead of using device_XX and device_t we change this
into stdio_XX and stdio_dev
This will also allow to add later a generic device mechanism in order
to have support for multiple devices and driver instances.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Edited commit message.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This patch adds support splash image positioning by adding an
additional variable "splashpos" to the environment. Please see
README for details.
Signed-off-by: Matthias Weisser <matthias.weisser@graf-syteco.de>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.
Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.
This patch cleans this up - for example:
Before:
=> help dtt
dtt - Digital Thermometer and Thermostat
Usage:
dtt - Read temperature from digital thermometer and thermostat.
After:
=> help dtt
dtt - Read temperature from Digital Thermometer and Thermostat
Usage:
dtt
Signed-off-by: Wolfgang Denk <wd@denx.de>
Fix following warning while compilation for mcc200 board:
lcd.c: In function 'lcd_display_bitmap':
lcd.c:625: warning: unused variable 'cmap'
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This patch also simplifies some ifdefs in lcd.c, introduces a generic
vidinfo_t, which new drivers are encouraged to use and old drivers to switch
over to.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
This patch adds 16bpp BMP support to the common lcd code.
Use CONFIG_BMP_16BPP and set LCD_BPP to LCD_COLOR16 to enable the code.
At the moment it's only been tested on the MIMC200 AVR32 board, but extending
this to other platforms should be a simple task !!
Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
The information displayed when CONFIG_LCD_INFO is set is inherently
board-specific, so it should be done by the board code. The current code
dealing with this only handles two cases, and is already a horrible mess
of #ifdeffery.
Yes, this duplicates some code, but it also allows boards to print more
board-specific information; this used to be very difficult.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
This allows the logo/info rendering routines to use the regular
lcd_putc/lcd_puts/lcd_printf calls.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
lcd_printf() has a prototype in include/lcd.h but no implementation. Fix
this by borrowing the lcd_printf() implementation from the cogent board
code (which appears to use its own LCD framework.)
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
The current lcd_display_bitmap() function does not work properly
for the Atmel LCD controller.
2 fixes need to be done:-
(a) when setting the colour map, use the lcd_setcolreg() function
as provided by the Atmel driver
(b) the data is never actually written to the lcd framebuffer !!
Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
