[U-Boot-Users] Up-arrow and Down-arrow related Query

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Martijn de Gouw]

Hi,
 
> I need to know where the Up and Down arrow key press
> functionalities are defined.    

Check common/main.c
See also this patch
http://article.gmane.org/gmane.comp.boot-loaders.u-boot/21829/match=hist
ory

Regards,
Martijn de Gouw

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Wolfgang Denk]

In message <1168625193.1678.23.camel@Kamesh> you wrote:
>
>        I'm using u-boot for our custom board.
> We are customizing the Cmd Line interface of U-Boot
> to suit our needs.

Start trying to understand what's already present...

> The Up-Arrow & Down-Arrow keys don't function the way
> they do in Bash Shell prompt. 

Umm... it seems you are somewhat  confused  about  functions  of  the
terminal  emulation  running  on  your  host  computer  and the imput
processing in U-Boot.

In the standard configuration, there is no such thing  as  "Up-Arrow"
or "Down-Arrow" keys - U-Boot is reading a character stream, and tere
is no such characters in the usedC (= ASCII) character set.

However, you can enable command completion, commandline editiong  and
history  functions  by  enabling  these  in your board configuration.
Then, and  only  then,  will  U-Boot  respond  to  certain  character
sequences.

> The Up-Arrow takes the cursor up the screen thru the previous 
> prompt lines. Where is this Up-Arrow functionality defined ?

In the terminal emulation program running on your host system. U-Boot
is just echoing the characters in your input.

> I chkd the readline() function in common/main.c, but that does 
> not take care of Up & Down arrows in Switch - Case stmts.

It does not ven know that such things might exist.

> I need to know where the Up and Down arrow key press
> functionalities are defined.    

You repeat yourself.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Quote from a recent meeting:   "We are going to continue having these
meetings everyday until I find out why no work is getting done."

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Timur Tabi]

Martijn de Gouw wrote:
> Hi,
>  
>> I need to know where the Up and Down arrow key press
>> functionalities are defined.    
> 
> Check common/main.c
> See also this patch
> http://article.gmane.org/gmane.comp.boot-loaders.u-boot/21829/match=hist
> ory

Why wasn't this patch incorporated into U-Boot?

-- 
Timur Tabi
Linux Kernel Developer @ Freescale

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Wolfgang Denk]

In message <45A7C33E.6080705@freescale.com> you wrote:
>
> > See also this patch
> > http://article.gmane.org/gmane.comp.boot-loaders.u-boot/21829/match=hist
> > ory
> 
> Why wasn't this patch incorporated into U-Boot?

Because a different implementation was chosen?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Whom the gods would destroy, they first teach BASIC.

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Kamesh K S]

Hi All, 
       I'm using u-boot for our custom board.
We are customizing the Cmd Line interface of U-Boot
to suit our needs.

The Up-Arrow & Down-Arrow keys don't function the way
they do in Bash Shell prompt. 

The Up-Arrow takes the cursor up the screen thru the previous 
prompt lines. Where is this Up-Arrow functionality defined ?

Same with Down-Arrow - It takes the cursor down till u hit the 
bottom of the screen ( as in a file ).

I chkd the readline() function in common/main.c, but that does 
not take care of Up & Down arrows in Switch - Case stmts.
 
I also chkd some environment related files too, but no help.

I need to know where the Up and Down arrow key press
functionalities are defined.    

Please Help !!

Rgds
Kamesh

[U-Boot-Users] Up-arrow and Down-arrow related Query

[Kamesh K S]

Hi ALL, 

I went thru' the latest 1.1.6 code and found that 
History command and various other command line 
editing options can be enabled using the 
CONFIG_CMDLINE_EDITING macro. But it does not 
support command completion. 

        The CONFIG_AUTO_COMPLETE macro allows command 
completion but that does not work in tandem with History 
and other cmd line editing options(only very few cmd line 
edit option work). 

readline() has few cmd edit options along with command 
completion. 

cread_line() has many cmdline editing features available, 
but command completion option is not supported. 

How do we make both of them work in in u-boot environment 
togather ? 

Or am I missing anything ? 

Thnx in Advance 
Kamesh 




On Fri, 2007-01-12 at 16:52, Wolfgang Denk wrote:
> In message <1168625193.1678.23.camel@Kamesh> you wrote:
> >
> >        I'm using u-boot for our custom board.
> > We are customizing the Cmd Line interface of U-Boot
> > to suit our needs.
> 
> Start trying to understand what's already present...
> 
> > The Up-Arrow & Down-Arrow keys don't function the way
> > they do in Bash Shell prompt. 
> 
> Umm... it seems you are somewhat  confused  about  functions  of  the
> terminal  emulation  running  on  your  host  computer  and the imput
> processing in U-Boot.
> 
> In the standard configuration, there is no such thing  as  "Up-Arrow"
> or "Down-Arrow" keys - U-Boot is reading a character stream, and tere
> is no such characters in the usedC (= ASCII) character set.
> 
> However, you can enable command completion, commandline editiong  and
> history  functions  by  enabling  these  in your board configuration.
> Then, and  only  then,  will  U-Boot  respond  to  certain  character
> sequences.
> 
> > The Up-Arrow takes the cursor up the screen thru the previous 
> > prompt lines. Where is this Up-Arrow functionality defined ?
> 
> In the terminal emulation program running on your host system. U-Boot
> is just echoing the characters in your input.
> 
> > I chkd the readline() function in common/main.c, but that does 
> > not take care of Up & Down arrows in Switch - Case stmts.
> 
> It does not ven know that such things might exist.
> 
> > I need to know where the Up and Down arrow key press
> > functionalities are defined.    
> 
> You repeat yourself.
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> Quote from a recent meeting:   "We are going to continue having these
> meetings everyday until I find out why no work is getting done."
>