diff options
Diffstat (limited to 'lib/display_options.c')
-rw-r--r-- | lib/display_options.c | 55 |
1 files changed, 42 insertions, 13 deletions
diff --git a/lib/display_options.c b/lib/display_options.c index d5d17b2..24d8f55 100644 --- a/lib/display_options.c +++ b/lib/display_options.c @@ -7,6 +7,7 @@ #include <config.h> #include <common.h> +#include <div64.h> #include <inttypes.h> #include <version.h> #include <linux/ctype.h> @@ -22,6 +23,47 @@ int display_options (void) return 0; } +void print_freq(uint64_t freq, const char *s) +{ + unsigned long m = 0, n; + uint32_t f; + static const char names[] = {'G', 'M', 'K'}; + unsigned long d = 1e9; + char c = 0; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(names); i++, d /= 1000) { + if (freq >= d) { + c = names[i]; + break; + } + } + + if (!c) { + printf("%" PRIu64 " Hz%s", freq, s); + return; + } + + f = do_div(freq, d); + n = freq; + + /* If there's a remainder, show the first few digits */ + if (f) { + m = f; + while (m > 1000) + m /= 10; + while (m && !(m % 10)) + m /= 10; + if (m >= 100) + m = (m / 10) + (m % 100 >= 50); + } + + printf("%lu", n); + if (m) + printf(".%ld", m); + printf(" %cHz%s", c, s); +} + void print_size(uint64_t size, const char *s) { unsigned long m = 0, n; @@ -63,19 +105,6 @@ void print_size(uint64_t size, const char *s) printf (" %ciB%s", c, s); } -/* - * Print data buffer in hex and ascii form to the terminal. - * - * data reads are buffered so that each memory address is only read once. - * Useful when displaying the contents of volatile registers. - * - * parameters: - * addr: Starting address to display at start of line - * data: pointer to data buffer - * width: data value width. May be 1, 2, or 4. - * count: number of values to display - * linelen: Number of values to print per line; specify 0 for default length - */ #define MAX_LINE_LENGTH_BYTES (64) #define DEFAULT_LINE_LENGTH_BYTES (16) int print_buffer(ulong addr, const void *data, uint width, uint count, |