view target-utils/c139explore/backlight.c @ 416:30f6d1c32c6f

doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 5d9d95530256
children
line wrap: on
line source

#include <sys/types.h>
#include <strings.h>
#include "types.h"
#include "abbdefs.h"

#define	GPIO_OUT_REG		(*(volatile u16 *) 0xfffe4802)
#define	BACKLIGHT_GPIO_MASK	0x0002

#define	AUXLED_KPBL_OFF	0x000
#define	AUXLED_KPBL_ON	0x002

void
cmd_dbl(argbulk)
	char *argbulk;
{
	char *argv[2];

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (!strcmp(argv[0], "on"))
		GPIO_OUT_REG |= BACKLIGHT_GPIO_MASK;
	else if (!strcmp(argv[0], "off"))
		GPIO_OUT_REG &= ~BACKLIGHT_GPIO_MASK;
	else
		printf("ERROR: \"on\" or \"off\" argument expected\n");
}

void
cmd_kpbl(argbulk)
	char *argbulk;
{
	char *argv[2];

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (!strcmp(argv[0], "on"))
		abb_reg_write(AUXLED, AUXLED_KPBL_ON);
	else if (!strcmp(argv[0], "off"))
		abb_reg_write(AUXLED, AUXLED_KPBL_OFF);
	else
		printf("ERROR: \"on\" or \"off\" argument expected\n");
}