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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2016-09-28 20:50:13 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-10-04 21:14:19 +0200 |
| commit | 1a64dd38544425e92de81aa505f6f390a7a53256 (patch) | |
| tree | 8d6765b9ad882c03a12097c3cfec339203a52720 | |
| parent | 446ff0216e8df126b6bd5c284c1ba930fd8bb0ea (diff) | |
| download | barebox-1a64dd38544425e92de81aa505f6f390a7a53256.tar.gz barebox-1a64dd38544425e92de81aa505f6f390a7a53256.tar.xz | |
scripts: kwboot: improve diagnostic output
After entering uart boot mode the CPU prints some diagnostic messages.
Showing them to the user helps her to notice when the message window was
missed or there is an other problem.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | scripts/kwboot.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/scripts/kwboot.c b/scripts/kwboot.c index 9dfaf4a8df..0a089b5936 100644 --- a/scripts/kwboot.c +++ b/scripts/kwboot.c @@ -9,6 +9,7 @@ * 2008. Chapter 24.2 "BootROM Firmware". */ +#include <ctype.h> #include <stdlib.h> #include <stdio.h> #include <string.h> @@ -285,12 +286,20 @@ kwboot_bootmsg(int tty, void *msg) } rc = kwboot_tty_recv(tty, &c, 1, KWBOOT_MSG_RSP_TIMEO); - - kwboot_spinner(); + while (!rc && c != NAK) { + if (c == '\\') + kwboot_printv("\\\\", c); + else if (isprint(c) || c == '\r' || c == '\n') + kwboot_printv("%c", c); + else + kwboot_printv("\\x%02hhx", c); + + rc = kwboot_tty_recv(tty, &c, 1, KWBOOT_MSG_RSP_TIMEO); + } } while (rc || c != NAK); - kwboot_printv("\n"); + kwboot_printv("\nGot expected NAK\n"); return rc; } |