diff options
Diffstat (limited to 'stand/common/console.c')
| -rw-r--r-- | stand/common/console.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/stand/common/console.c b/stand/common/console.c index 82cb552b4ef2..65ab7ffad622 100644 --- a/stand/common/console.c +++ b/stand/common/console.c @@ -44,6 +44,8 @@ static int twiddle_set(struct env_var *ev, int flags, const void *value); #endif int module_verbose = MODULE_VERBOSE; +static uint32_t print_delay_usec = 0; + static int module_verbose_set(struct env_var *ev, int flags, const void *value) { @@ -66,6 +68,23 @@ module_verbose_set(struct env_var *ev, int flags, const void *value) } /* + * Hook to set the print delay + */ +int +setprint_delay(struct env_var *ev, int flags, const void *value) +{ + char *end; + int usec = strtol(value, &end, 10); + + if (*(char *)value == '\0' || *end != '\0') + return (EINVAL); + if (usec < 0) + return (EINVAL); + print_delay_usec = usec; + return (0); +} + +/* * Detect possible console(s) to use. If preferred console(s) have been * specified, mark them as active. Else, mark the first probed console * as active. Also create the console variable. @@ -178,6 +197,10 @@ putchar(int c) (C_PRESENTOUT | C_ACTIVEOUT)) consoles[cons]->c_out(c); } + + /* Pause after printing newline character if a print delay is set */ + if (print_delay_usec != 0 && c == '\n') + delay(print_delay_usec); } /* |