1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2001
3*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun /*
9*4882a593Smuzhiyun * Misc functions
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun #include <common.h>
12*4882a593Smuzhiyun #include <command.h>
13*4882a593Smuzhiyun #include <console.h>
14*4882a593Smuzhiyun
do_sleep(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])15*4882a593Smuzhiyun static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun ulong start = get_timer(0);
18*4882a593Smuzhiyun ulong mdelay = 0;
19*4882a593Smuzhiyun ulong delay;
20*4882a593Smuzhiyun char *frpart;
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun if (argc != 2)
23*4882a593Smuzhiyun return CMD_RET_USAGE;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun frpart = strchr(argv[1], '.');
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun if (frpart) {
30*4882a593Smuzhiyun uint mult = CONFIG_SYS_HZ / 10;
31*4882a593Smuzhiyun for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
32*4882a593Smuzhiyun if (*frpart < '0' || *frpart > '9') {
33*4882a593Smuzhiyun mdelay = 0;
34*4882a593Smuzhiyun break;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun mdelay += (*frpart - '0') * mult;
37*4882a593Smuzhiyun mult /= 10;
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun delay += mdelay;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun while (get_timer(start) < delay) {
44*4882a593Smuzhiyun if (ctrlc())
45*4882a593Smuzhiyun return (-1);
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun udelay(100);
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun return 0;
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun U_BOOT_CMD(
54*4882a593Smuzhiyun sleep , 2, 1, do_sleep,
55*4882a593Smuzhiyun "delay execution for some time",
56*4882a593Smuzhiyun "N\n"
57*4882a593Smuzhiyun " - delay execution for N seconds (N is _decimal_ and can be\n"
58*4882a593Smuzhiyun " fractional)"
59*4882a593Smuzhiyun );
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun #ifdef CONFIG_CMD_TIMER
do_timer(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])62*4882a593Smuzhiyun static int do_timer(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun static ulong start;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun if (argc != 2)
67*4882a593Smuzhiyun return CMD_RET_USAGE;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun if (!strcmp(argv[1], "start"))
70*4882a593Smuzhiyun start = get_timer(0);
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun if (!strcmp(argv[1], "get")) {
73*4882a593Smuzhiyun ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
74*4882a593Smuzhiyun printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun return 0;
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun U_BOOT_CMD(
81*4882a593Smuzhiyun timer, 2, 1, do_timer,
82*4882a593Smuzhiyun "access the system timer",
83*4882a593Smuzhiyun "start - Reset the timer reference.\n"
84*4882a593Smuzhiyun "timer get - Print the time since 'start'."
85*4882a593Smuzhiyun );
86*4882a593Smuzhiyun #endif
87