u-boot.git/common/console.c, branch v2013.04

env: Add a silent env handler

2012-12-13T18:46:56+00:00

The silent variable now updates the global data flag anytime it is
changed as well as after the env relocation (in case its value is
different from the default env in such cases as NAND env)

Signed-off-by: Joe Hershberger

env: Add a console env handler

2012-12-13T18:46:56+00:00

Remove the hard-coded console handler and use a callback instead

Signed-off-by: Joe Hershberger

env: Refactor do_apply to a flag

2012-12-13T18:46:54+00:00

Use a flag in hsearch_r for insert mode passed from import to allow the
behavior be different based on use.

Now that "do_check" is called for all imports, ensure console init is
complete before updating the console on relocation import

Signed-off-by: Joe Hershberger

console: Enable function to display console info

2012-12-11T20:18:12+00:00

The CONFIG_SYS_CONSOLE_INFO_QUIET option should suppress the console
information, but allow boards to display it later if required. Adjust
the code to support this.

This is used to avoid printing the information while the LCD display
is not ready, since it only becomes ready when stdio init is complete.

Signed-off-by: Simon Glass

Revert "Add board_pre_console_putc to deal with early console output"

2012-03-23T20:27:32+00:00

This reverts commit 295d3942b806552503243f5cfb36aec6f1b5a9bf.

It turns that this really doesn't work very nicely. Instead we should
have a pre-console panic function so that we know that further execution
is impossible and we don't need to worry about trampling on UARTs, etc.

Signed-off-by: Simon Glass 
Signed-off-by: Wolfgang Denk

Make printf and vprintf safe from buffer overruns

2011-12-17T22:34:43+00:00

From: Sonny Rao 

utilize the added vscnprintf functions to avoid buffer overruns
The implementation is fairly dumb in that it doesn't detect
that the buffer is too small, but at least will not cause crashes.

Signed-off-by: Sonny Rao

Add board_pre_console_putc to deal with early console output

2011-12-09T13:44:22+00:00

This patch adds support for console output before the console is inited.
The main purpose of this is to deal with a very early panic() which would
otherwise cause a silent hang.

A new board_pre_console_putc() function is added to the board API. If
provided by the board it will be called in the event of console output
before the console is ready. This function should turn on all UARTs and
spray the character out if it possibly can.

The feature is controlled by a new CONFIG_PRE_CONSOLE_PUTC option.

Signed-off-by: Simon Glass 
Acked-by: Graeme Russ

console: Implement pre-console buffer

2011-10-05T20:03:09+00:00

Allow redirection of console output prior to console initialisation to a
temporary buffer.

To enable this functionality, the board (or arch) must define:
 - CONFIG_PRE_CONSOLE_BUFFER - Enable pre-console buffer
 - CONFIG_PRE_CON_BUF_ADDR - Base address of pre-console buffer
 - CONFIG_PRE_CON_BUF_SZ - Size of pre-console buffer (in bytes)

The pre-console buffer will buffer the last CONFIG_PRE_CON_BUF_SZ bytes
Any earlier characters are silently dropped.

console: Squelch pre-console output in console functions

2011-10-01T19:54:49+00:00

There are some locations in the code which anticipate printf() being called
before the console is ready by squelching printf() on gd->have_console.
Move this squelching into printf(), vprintf(), puts() and putc(). Also
make tstc() and getc() return 0 if console is not yet initialised

Signed-off-by: Graeme Russ 
Tested-by: Simon Glass

stdio: constify "name" arg in public api

2010-11-28T20:58:48+00:00

Signed-off-by: Mike Frysinger