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