50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
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/*
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* arch/arm/mach-dove/include/mach/gpio.h
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __ASM_ARCH_GPIO_H
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#define __ASM_ARCH_GPIO_H
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#include <asm/errno.h>
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#include <mach/irqs.h>
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#include <plat/gpio.h>
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#include <asm-generic/gpio.h> /* cansleep wrappers */
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#define GPIO_MAX 64
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#define GPIO_BASE_LO (DOVE_GPIO_VIRT_BASE + 0x00)
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#define GPIO_BASE_HI (DOVE_GPIO_VIRT_BASE + 0x20)
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#define GPIO_BASE(pin) ((pin < 32) ? GPIO_BASE_LO : GPIO_BASE_HI)
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#define GPIO_OUT(pin) (GPIO_BASE(pin) + 0x00)
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#define GPIO_IO_CONF(pin) (GPIO_BASE(pin) + 0x04)
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#define GPIO_BLINK_EN(pin) (GPIO_BASE(pin) + 0x08)
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#define GPIO_IN_POL(pin) (GPIO_BASE(pin) + 0x0c)
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#define GPIO_DATA_IN(pin) (GPIO_BASE(pin) + 0x10)
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#define GPIO_EDGE_CAUSE(pin) (GPIO_BASE(pin) + 0x14)
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#define GPIO_EDGE_MASK(pin) (GPIO_BASE(pin) + 0x18)
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#define GPIO_LEVEL_MASK(pin) (GPIO_BASE(pin) + 0x1c)
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static inline int gpio_to_irq(int pin)
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{
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if (pin < NR_GPIO_IRQS)
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return pin + IRQ_DOVE_GPIO_START;
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return -EINVAL;
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}
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static inline int irq_to_gpio(int irq)
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{
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if (IRQ_DOVE_GPIO_START < irq && irq < NR_IRQS)
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return irq - IRQ_DOVE_GPIO_START;
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return -EINVAL;
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}
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#endif
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