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sandbox: Tidy up terminal restore 

For some reason 'u-boot -D' does not restore the terminal correctly when
the 'reset' command is used. Call the terminal restore function explicitly
in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
utp
Simon Glass 2015-05-10 21:07:27 -06:00
parent d8abb46b37
commit 8939df092e
3 changed files with 15 additions and 3 deletions
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2
arch/sandbox/cpu/cpu.c
View File

@ -22,6 +22,8 @@ unsigned long map_len;
void reset_cpu(ulong ignored)
{
/* Do this here while it still has an effect */
os_fd_restore();
if (state_uninit())
os_exit(2);

8
arch/sandbox/cpu/os.c
View File

@ -107,10 +107,12 @@ void os_exit(int exit_code)
static struct termios orig_term;
static bool term_setup;
static void os_fd_restore(void)
void os_fd_restore(void)
{
if (term_setup)
if (term_setup) {
tcsetattr(0, TCSANOW, &orig_term);
term_setup = false;
}
}
/* Put tty into raw mode so <tab> and <ctrl+c> work */
@ -120,7 +122,6 @@ void os_tty_raw(int fd, bool allow_sigs)
if (term_setup)
return;
term_setup = true;
/* If not a tty, don't complain */
if (tcgetattr(fd, &orig_term))
@ -134,6 +135,7 @@ void os_tty_raw(int fd, bool allow_sigs)
if (tcsetattr(fd, TCSANOW, &term))
return;
term_setup = true;
atexit(os_fd_restore);
}

8
include/os.h
View File

@ -111,6 +111,14 @@ void os_exit(int exit_code) __attribute__((noreturn));
*/
void os_tty_raw(int fd, bool allow_sigs);
/**
* Restore the tty to its original mode
*
* Call this to restore the original terminal mode, after it has been changed
* by os_tty_raw(). This is an internal function.
*/
void os_fd_restore(void);
/**
* Acquires some memory from the underlying os.
*