u-boot/cmd/console.c
Heinrich Schuchardt fe34e163e0 cmd: improve coninfo output formatting
Device name are typically longer than 8 characters. This leads to ragged
output.
Only the I and O bit of the device flags are of interest for the user.
Writing a hexadecimal number is just confusing.

Before the patch the output looked like this:

    => coninfo
    List of available devices:
    pl011@9000000 00000007 IO stdin stdout stderr
    serial   00000003 IO
    usbkbd   00000001 I.

With the patch the output looks like this:

    => coninfo
    List of available devices
    |-- pl011@9000000 (IO)
    |   |-- stdin
    |   |-- stdout
    |   |-- stderr
    |-- serial (IO)
    |-- usbkbd (I)

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-02-10 13:05:39 +01:00

52 lines
1.0 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
/*
* Boot support
*/
#include <common.h>
#include <command.h>
#include <stdio_dev.h>
extern void _do_coninfo (void);
static int do_coninfo(struct cmd_tbl *cmd, int flag, int argc,
char *const argv[])
{
int l;
struct list_head *list = stdio_get_list();
struct list_head *pos;
struct stdio_dev *dev;
/* Scan for valid output and input devices */
puts("List of available devices\n");
list_for_each(pos, list) {
dev = list_entry(pos, struct stdio_dev, list);
printf("|-- %s (%s%s)\n",
dev->name,
(dev->flags & DEV_FLAGS_INPUT) ? "I" : "",
(dev->flags & DEV_FLAGS_OUTPUT) ? "O" : "");
for (l = 0; l < MAX_FILES; l++) {
if (stdio_devices[l] == dev) {
printf("| |-- %s\n", stdio_names[l]);
}
}
}
return 0;
}
/***************************************************/
U_BOOT_CMD(
coninfo, 3, 1, do_coninfo,
"print console devices and information",
""
);