[U-Boot] [PATCH 03/21] common/lcd: Add command for writing to lcd-display

[Hannes Petermaier]

> From: Nikita Kiryanov <nikita at compulab.co.il>
> To: Hannes Petermaier <oe5hpm at oevsv.at>, u-boot at lists.denx.de
> Date: 01.02.2015 15:53
> Subject: Re: [U-Boot] [PATCH 03/21] common/lcd: Add command for writing 
to lcd-display
> Sent by: "U-Boot" <u-boot-bounces at lists.denx.de>
> 
> Hi Hannes,
Hi Nikita,

> 
> On 01/30/2015 03:25 PM, Hannes Petermaier wrote:
> > We need this function if we want to make some outputs out of u-boot 
scripts.
> >
> 
> I think this commit message is missing information. What makes this 
necessary?
> Why can't your script use regular echo commands with the lcd console 
enabled?

Since i don't want that stdout is redirected to LCD (customer isn't 
interested in watching
all output of u-boot) i need something to write out of scripts to the 
screen.

For example we write of script in which mode we are booting, maybe also 
some default ip settings
in recovery mode.

> 
> > Signed-off-by: Hannes Petermaier <oe5hpm at oevsv.at>
> > ---
> >   common/lcd.c |   17 +++++++++++++++++
> >   1 file changed, 17 insertions(+)
> >
> > diff --git a/common/lcd.c b/common/lcd.c
> > index f418da9..755388f 100644
> > --- a/common/lcd.c
> > +++ b/common/lcd.c
> > @@ -279,6 +279,17 @@ static int do_lcd_clear(cmd_tbl_t *cmdtp, int 
flag, int argc,
> >      return 0;
> >   }
> >
> > +static int do_lcd_puts(cmd_tbl_t *cmdtp, int flag, int argc,
> > +             char *const argv[])
> > +{
> > +   if (argc != 2)
> > +      return CMD_RET_USAGE;
> > +
> > +   lcd_puts(argv[1]);
> > +
> > +   return 0;
> > +}
> > +
> >   static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
> >                char *const argv[])
> >   {
> > @@ -306,6 +317,12 @@ U_BOOT_CMD(
> >      "    <col> <row> in character"
> >   );
> >
> > +U_BOOT_CMD(
> > +   puts,   2,   1,   do_lcd_puts,
> 
> "puts" is too generic for an lcd specific function. I would expect to 
see something
> with an "lcd" prefix. Also, this code seems better suited for 
lcd_console.c

Okay, thats right - should we rename it to "lcdputs" ?

Only thing for decission was, that existing commands are allready defined 
within
lcd.c. But i've no problem to move it. What do you say? let's move?

> 
> > +   "print string on lcd-framebuffer",
> > +   "    <string>"
> > +);
> > +
> > 
/*----------------------------------------------------------------------*/
> >
> >   static int lcd_init(void *lcdbase)
> >
> 
> -- 
> Regards,
> Nikita Kiryanov
best regards,
Hannes