On Wed, Oct 26, 2011 at 3:21 AM, Mike Frysinger vapier@gentoo.org wrote:

This allows us to act like a serial device: we get tab chars and CTRL+C and respond appropriately.

Signed-off-by: Mike Frysinger vapier@gentoo.org

Tested-by: Simon Glass sjg@chromium.org

Thanks Mike

---

arch/sandbox/cpu/os.c    |   34 ++++++++++++++++++++++++++++++++++  drivers/serial/sandbox.c |    1 +  include/os.h             |    5 +++++  3 files changed, 40 insertions(+), 0 deletions(-)

diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 6c175d4..f80faac 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -21,6 +21,7 @@

#include <fcntl.h>  #include <stdlib.h> +#include <termios.h>  #include <unistd.h>  #include <sys/types.h>  #include <sys/stat.h> @@ -53,3 +54,36 @@ void os_exit(int exit_code)  {        exit(exit_code);  }

+/* Restore tty state when we exit */ +static struct termios orig_term;

+static void os_fd_restore(void) +{

• tcsetattr(0, TCSANOW, &orig_term);

+}

+/* Put tty into raw mode so <tab> and <ctrl+c> work */ +void os_tty_raw(int fd) +{

• static int setup = 0;
• struct termios term;
• if (setup)
• return;
• setup = 1;
• /* If not a tty, don't complain */
• if (tcgetattr(fd, &orig_term))
• return;
• term = orig_term;
• term.c_iflag = IGNBRK | IGNPAR;
• term.c_oflag = OPOST | ONLCR;
• term.c_cflag = CS8 | CREAD | CLOCAL;
• term.c_lflag = 0;
• if (tcsetattr(fd, TCSANOW, &term))
• return;
• atexit(os_fd_restore);

+} diff --git a/drivers/serial/sandbox.c b/drivers/serial/sandbox.c index 814a0f9..1927c16 100644 --- a/drivers/serial/sandbox.c +++ b/drivers/serial/sandbox.c @@ -30,6 +30,7 @@

int serial_init(void)  {

• os_tty_raw(0);

return 0;  }

diff --git a/include/os.h b/include/os.h index 3ea6d2d..d5df22f 100644 --- a/include/os.h +++ b/include/os.h @@ -71,3 +71,8 @@ int os_close(int fd);  * @param exit_code    exit code for U-Boot  */  void os_exit(int exit_code);

+/**

• • Put tty into raw mode to mimic serial console better
• */

+void os_tty_raw(int fd);

1.7.6.1