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- /*
- * arch/arm/plat-iop/gpio.c
- * GPIO handling for Intel IOP3xx processors.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
- #include <linux/device.h>
- #include <asm/hardware/iop3xx.h>
- void gpio_line_config(int line, int direction)
- {
- unsigned long flags;
- local_irq_save(flags);
- if (direction == GPIO_IN) {
- *IOP3XX_GPOE |= 1 << line;
- } else if (direction == GPIO_OUT) {
- *IOP3XX_GPOE &= ~(1 << line);
- }
- local_irq_restore(flags);
- }
- EXPORT_SYMBOL(gpio_line_config);
- int gpio_line_get(int line)
- {
- return !!(*IOP3XX_GPID & (1 << line));
- }
- EXPORT_SYMBOL(gpio_line_get);
- void gpio_line_set(int line, int value)
- {
- unsigned long flags;
- local_irq_save(flags);
- if (value == GPIO_LOW) {
- *IOP3XX_GPOD &= ~(1 << line);
- } else if (value == GPIO_HIGH) {
- *IOP3XX_GPOD |= 1 << line;
- }
- local_irq_restore(flags);
- }
- EXPORT_SYMBOL(gpio_line_set);
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