2 * (C) Copyright 2000-2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <linux/ctype.h>
14 int display_options (void)
16 #if defined(BUILD_TAG)
17 printf ("\n\n%s, Build: %s\n\n", version_string
, BUILD_TAG
);
19 printf ("\n\n%s\n\n", version_string
);
25 * print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB",
26 * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string
29 void print_size(unsigned long long size
, const char *s
)
31 unsigned long m
= 0, n
;
33 static const char names
[] = {'E', 'P', 'T', 'G', 'M', 'K'};
34 unsigned long d
= 10 * ARRAY_SIZE(names
);
38 for (i
= 0; i
< ARRAY_SIZE(names
); i
++, d
-= 10) {
46 printf("%llu Bytes%s", size
, s
);
51 f
= size
& ((1ULL << d
) - 1);
53 /* If there's a remainder, deal with it */
55 m
= (10ULL * f
+ (1ULL << (d
- 1))) >> d
;
67 printf (" %ciB%s", c
, s
);
71 * Print data buffer in hex and ascii form to the terminal.
73 * data reads are buffered so that each memory address is only read once.
74 * Useful when displaying the contents of volatile registers.
77 * addr: Starting address to display at start of line
78 * data: pointer to data buffer
79 * width: data value width. May be 1, 2, or 4.
80 * count: number of values to display
81 * linelen: Number of values to print per line; specify 0 for default length
83 #define MAX_LINE_LENGTH_BYTES (64)
84 #define DEFAULT_LINE_LENGTH_BYTES (16)
85 int print_buffer(ulong addr
, const void *data
, uint width
, uint count
,
88 /* linebuf as a union causes proper alignment */
90 uint32_t ui
[MAX_LINE_LENGTH_BYTES
/sizeof(uint32_t) + 1];
91 uint16_t us
[MAX_LINE_LENGTH_BYTES
/sizeof(uint16_t) + 1];
92 uint8_t uc
[MAX_LINE_LENGTH_BYTES
/sizeof(uint8_t) + 1];
96 if (linelen
*width
> MAX_LINE_LENGTH_BYTES
)
97 linelen
= MAX_LINE_LENGTH_BYTES
/ width
;
99 linelen
= DEFAULT_LINE_LENGTH_BYTES
/ width
;
102 uint thislinelen
= linelen
;
103 printf("%08lx:", addr
);
105 /* check for overflow condition */
106 if (count
< thislinelen
)
109 /* Copy from memory into linebuf and print hex values */
110 for (i
= 0; i
< thislinelen
; i
++) {
113 x
= lb
.ui
[i
] = *(volatile uint32_t *)data
;
115 x
= lb
.us
[i
] = *(volatile uint16_t *)data
;
117 x
= lb
.uc
[i
] = *(volatile uint8_t *)data
;
118 printf(" %0*x", width
* 2, x
);
122 while (thislinelen
< linelen
) {
123 /* fill line with whitespace for nice ASCII print */
124 for (i
=0; i
<width
*2+1; i
++)
129 /* Print data in ASCII characters */
130 for (i
= 0; i
< thislinelen
* width
; i
++) {
131 if (!isprint(lb
.uc
[i
]) || lb
.uc
[i
] >= 0x80)
135 printf(" %s\n", lb
.uc
);
137 /* update references */
138 addr
+= thislinelen
* width
;
139 count
-= thislinelen
;