diff options
Diffstat (limited to 'avr/cmd_misc.c')
| -rw-r--r-- | avr/cmd_misc.c | 59 |
1 files changed, 46 insertions, 13 deletions
diff --git a/avr/cmd_misc.c b/avr/cmd_misc.c index 7ab8fef..315b959 100644 --- a/avr/cmd_misc.c +++ b/avr/cmd_misc.c @@ -6,13 +6,17 @@ */ #include "common.h" +#include <stdlib.h> + #include "command.h" +#include "timer.h" +#include "con-utils.h" command_ret_t do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { uint_fast8_t putnl = 1; - + (void) cmdtp; (void) flag; for (uint_fast8_t i = 1; i < argc; i++) { @@ -20,11 +24,11 @@ command_ret_t do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) uint_fast8_t backslash = 0; char *p = argv[i]; char c; - + if (i != 1) putchar(' '); while ((c = *p++) != '\0') { - + if(backslash) { backslash = 0; if (c == 'c') { @@ -40,19 +44,48 @@ command_ret_t do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } putchar(c); } - } - + } + if (putnl) putchar('\n'); return CMD_RET_SUCCESS; } -#if 0 -U_BOOT_CMD( - echo, CONFIG_SYS_MAXARGS, 1, do_echo, - "echo args to console", - "[args..]\n" - " - echo args to console; \\c suppresses newline" -); -#endif + +command_ret_t do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned long start = get_timer(0); + unsigned long delay; + char *sp; + uint_fast8_t millisec = 0; + + (void) cmdtp; (void) flag; + + if (argc != 2) + return CMD_RET_USAGE; + + delay = strtoul(argv[1], &sp, 10); + + if (*sp == 'm') { + millisec = 1; + sp++; + } + if (*sp == 's') + sp++; + if (*sp != '\0') + return CMD_RET_USAGE; + + if (!millisec) + delay *= 1000; + + while (get_timer(start) < delay) { + if (ctrlc()) + return CMD_RET_FAILURE; + + udelay(100); + } + + return CMD_RET_SUCCESS; +} + |