u-boot/lib/strmhz.c

/*
 * (C) Copyright 2002-2006
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#include <common.h>

char *strmhz (char *buf, unsigned long hz)
{
	long l, n;
	long m;

	n = DIV_ROUND(hz, 1000) / 1000L;
	l = sprintf (buf, "%ld", n);

	hz -= n * 1000000L;
	m = DIV_ROUND(hz, 1000L);
	if (m != 0)
		sprintf (buf + l, ".%03ld", m);
	return (buf);
}
Consolidate strmhz() implementation ARM, i386, m68k and ppc all have identical implementations of strmhz(). Other architectures don't provide this function at all. This patch moves strmhz() into lib_generic, reducing code duplication and providing a more unified API across architectures. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 2008-08-18 11:41:27 +00:00			`/*`
			`* (C) Copyright 2002-2006`
			`* Wolfgang Denk, DENX Software Engineering, wd@denx.de.`
			`*`
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> 2013-07-08 07:37:19 +00:00			`* SPDX-License-Identifier: GPL-2.0+`
Consolidate strmhz() implementation ARM, i386, m68k and ppc all have identical implementations of strmhz(). Other architectures don't provide this function at all. This patch moves strmhz() into lib_generic, reducing code duplication and providing a more unified API across architectures. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 2008-08-18 11:41:27 +00:00			`*/`
			`#include <common.h>`

strmhz: Make hz unsigned to support greater than 2146 MHz clock For example, an input of 0x80000000 should print: 2147.484 instead of -2147.-483. Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2011-03-05 16:28:17 +00:00			`char strmhz (char buf, unsigned long hz)`
Consolidate strmhz() implementation ARM, i386, m68k and ppc all have identical implementations of strmhz(). Other architectures don't provide this function at all. This patch moves strmhz() into lib_generic, reducing code duplication and providing a more unified API across architectures. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 2008-08-18 11:41:27 +00:00			`{`
			`long l, n;`
			`long m;`

Fix strmhz(): avoid printing negative fractions Signed-off-by: Wolfgang Denk <wd@denx.de> 2008-10-21 13:53:51 +00:00			`n = DIV_ROUND(hz, 1000) / 1000L;`
Consolidate strmhz() implementation ARM, i386, m68k and ppc all have identical implementations of strmhz(). Other architectures don't provide this function at all. This patch moves strmhz() into lib_generic, reducing code duplication and providing a more unified API across architectures. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 2008-08-18 11:41:27 +00:00			`l = sprintf (buf, "%ld", n);`
strmhz(): Round numbers when printing clock frequencies Round clock frequencies for printing. Many boards printed off clock frequencies like 399 MHz instead of the exact 400 MHz because numberes were not rounded. This is fixed now. Signed-off-by: Wolfgang Denk <wd@denx.de> 2008-10-19 00:35:48 +00:00
			`hz -= n * 1000000L;`
			`m = DIV_ROUND(hz, 1000L);`
Consolidate strmhz() implementation ARM, i386, m68k and ppc all have identical implementations of strmhz(). Other architectures don't provide this function at all. This patch moves strmhz() into lib_generic, reducing code duplication and providing a more unified API across architectures. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 2008-08-18 11:41:27 +00:00			`if (m != 0)`
			`sprintf (buf + l, ".%03ld", m);`
			`return (buf);`
			`}`