u-boot/cmd/iotrace.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

72 lines
1.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2014 Google, Inc
*/
#include <common.h>
#include <command.h>
#include <iotrace.h>
static void do_print_stats(void)
{
ulong start, size, offset, count;
printf("iotrace is %sabled\n", iotrace_get_enabled() ? "en" : "dis");
iotrace_get_buffer(&start, &size, &offset, &count);
printf("Start: %08lx\n", start);
printf("Size: %08lx\n", size);
printf("Offset: %08lx\n", offset);
printf("Output: %08lx\n", start + offset);
printf("Count: %08lx\n", count);
printf("CRC32: %08lx\n", (ulong)iotrace_get_checksum());
}
static int do_set_buffer(int argc, char * const argv[])
{
ulong addr = 0, size = 0;
if (argc == 2) {
addr = simple_strtoul(*argv++, NULL, 16);
size = simple_strtoul(*argv++, NULL, 16);
} else if (argc != 0) {
return CMD_RET_USAGE;
}
iotrace_set_buffer(addr, size);
return 0;
}
int do_iotrace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
const char *cmd = argc < 2 ? NULL : argv[1];
if (!cmd)
return cmd_usage(cmdtp);
switch (*cmd) {
case 'b':
return do_set_buffer(argc - 2, argv + 2);
case 'p':
iotrace_set_enabled(0);
break;
case 'r':
iotrace_set_enabled(1);
break;
case 's':
do_print_stats();
break;
default:
return CMD_RET_USAGE;
}
return 0;
}
U_BOOT_CMD(
iotrace, 4, 1, do_iotrace,
"iotrace utility commands",
"stats - display iotrace stats\n"
"iotrace buffer <address> <size> - set iotrace buffer\n"
"iotrace pause - pause tracing\n"
"iotrace resume - resume tracing"
);