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