linux/arch/mips/include/asm/mach-bcm47xx/gpio.h
Matthieu Castet f203b7cacb MIPS: BCM47xx: Fix gpio_direction_output
gpio_direction_output should also set an output value according to the API.

Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr> 
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-17 11:06:28 +01:00

66 lines
1.5 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
*/
#ifndef __BCM47XX_GPIO_H
#define __BCM47XX_GPIO_H
#include <linux/ssb/ssb_embedded.h>
#include <asm/mach-bcm47xx/bcm47xx.h>
#define BCM47XX_EXTIF_GPIO_LINES 5
#define BCM47XX_CHIPCO_GPIO_LINES 16
extern int gpio_request(unsigned gpio, const char *label);
extern void gpio_free(unsigned gpio);
extern int gpio_to_irq(unsigned gpio);
static inline int gpio_get_value(unsigned gpio)
{
return ssb_gpio_in(&ssb_bcm47xx, 1 << gpio);
}
static inline void gpio_set_value(unsigned gpio, int value)
{
ssb_gpio_out(&ssb_bcm47xx, 1 << gpio, value ? 1 << gpio : 0);
}
static inline int gpio_direction_input(unsigned gpio)
{
ssb_gpio_outen(&ssb_bcm47xx, 1 << gpio, 0);
return 0;
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
/* first set the gpio out value */
ssb_gpio_out(&ssb_bcm47xx, 1 << gpio, value ? 1 << gpio : 0);
/* then set the gpio mode */
ssb_gpio_outen(&ssb_bcm47xx, 1 << gpio, 1 << gpio);
return 0;
}
static inline int gpio_intmask(unsigned gpio, int value)
{
ssb_gpio_intmask(&ssb_bcm47xx, 1 << gpio,
value ? 1 << gpio : 0);
return 0;
}
static inline int gpio_polarity(unsigned gpio, int value)
{
ssb_gpio_polarity(&ssb_bcm47xx, 1 << gpio,
value ? 1 << gpio : 0);
return 0;
}
/* cansleep wrappers */
#include <asm-generic/gpio.h>
#endif /* __BCM47XX_GPIO_H */