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e400bae984
Add vr41xx gpio support. Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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* Include file for NEC VR4100 series General-purpose I/O Unit.
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*
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* Copyright (C) 2005 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __NEC_VR41XX_GIU_H
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#define __NEC_VR41XX_GIU_H
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typedef enum {
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IRQ_TRIGGER_LEVEL,
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IRQ_TRIGGER_EDGE,
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IRQ_TRIGGER_EDGE_FALLING,
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IRQ_TRIGGER_EDGE_RISING,
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} irq_trigger_t;
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typedef enum {
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IRQ_SIGNAL_THROUGH,
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IRQ_SIGNAL_HOLD,
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} irq_signal_t;
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extern void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_t signal);
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typedef enum {
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IRQ_LEVEL_LOW,
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IRQ_LEVEL_HIGH,
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} irq_level_t;
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extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);
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typedef enum {
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GPIO_DATA_LOW,
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GPIO_DATA_HIGH,
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GPIO_DATA_INVAL,
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} gpio_data_t;
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extern gpio_data_t vr41xx_gpio_get_pin(unsigned int pin);
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extern int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data);
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typedef enum {
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GPIO_INPUT,
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GPIO_OUTPUT,
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GPIO_OUTPUT_DISABLE,
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} gpio_direction_t;
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extern int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir);
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typedef enum {
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GPIO_PULL_DOWN,
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GPIO_PULL_UP,
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GPIO_PULL_DISABLE,
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} gpio_pull_t;
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extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);
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#endif /* __NEC_VR41XX_GIU_H */
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