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gpio.h 9.3 KB
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/*
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 * arch/arm/mach-at91/include/mach/gpio.h
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 *
 *  Copyright (C) 2005 HP Labs
 *
 * 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.
 *
 */

#ifndef __ASM_ARCH_AT91RM9200_GPIO_H
#define __ASM_ARCH_AT91RM9200_GPIO_H
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#include <linux/kernel.h>
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#include <asm/irq.h>
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#define PIN_BASE		NR_AIC_IRQS
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#define MAX_GPIO_BANKS		5
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/* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
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#define	AT91_PIN_PA0	(PIN_BASE + 0x00 + 0)
#define	AT91_PIN_PA1	(PIN_BASE + 0x00 + 1)
#define	AT91_PIN_PA2	(PIN_BASE + 0x00 + 2)
#define	AT91_PIN_PA3	(PIN_BASE + 0x00 + 3)
#define	AT91_PIN_PA4	(PIN_BASE + 0x00 + 4)
#define	AT91_PIN_PA5	(PIN_BASE + 0x00 + 5)
#define	AT91_PIN_PA6	(PIN_BASE + 0x00 + 6)
#define	AT91_PIN_PA7	(PIN_BASE + 0x00 + 7)
#define	AT91_PIN_PA8	(PIN_BASE + 0x00 + 8)
#define	AT91_PIN_PA9	(PIN_BASE + 0x00 + 9)
#define	AT91_PIN_PA10	(PIN_BASE + 0x00 + 10)
#define	AT91_PIN_PA11	(PIN_BASE + 0x00 + 11)
#define	AT91_PIN_PA12	(PIN_BASE + 0x00 + 12)
#define	AT91_PIN_PA13	(PIN_BASE + 0x00 + 13)
#define	AT91_PIN_PA14	(PIN_BASE + 0x00 + 14)
#define	AT91_PIN_PA15	(PIN_BASE + 0x00 + 15)
#define	AT91_PIN_PA16	(PIN_BASE + 0x00 + 16)
#define	AT91_PIN_PA17	(PIN_BASE + 0x00 + 17)
#define	AT91_PIN_PA18	(PIN_BASE + 0x00 + 18)
#define	AT91_PIN_PA19	(PIN_BASE + 0x00 + 19)
#define	AT91_PIN_PA20	(PIN_BASE + 0x00 + 20)
#define	AT91_PIN_PA21	(PIN_BASE + 0x00 + 21)
#define	AT91_PIN_PA22	(PIN_BASE + 0x00 + 22)
#define	AT91_PIN_PA23	(PIN_BASE + 0x00 + 23)
#define	AT91_PIN_PA24	(PIN_BASE + 0x00 + 24)
#define	AT91_PIN_PA25	(PIN_BASE + 0x00 + 25)
#define	AT91_PIN_PA26	(PIN_BASE + 0x00 + 26)
#define	AT91_PIN_PA27	(PIN_BASE + 0x00 + 27)
#define	AT91_PIN_PA28	(PIN_BASE + 0x00 + 28)
#define	AT91_PIN_PA29	(PIN_BASE + 0x00 + 29)
#define	AT91_PIN_PA30	(PIN_BASE + 0x00 + 30)
#define	AT91_PIN_PA31	(PIN_BASE + 0x00 + 31)

#define	AT91_PIN_PB0	(PIN_BASE + 0x20 + 0)
#define	AT91_PIN_PB1	(PIN_BASE + 0x20 + 1)
#define	AT91_PIN_PB2	(PIN_BASE + 0x20 + 2)
#define	AT91_PIN_PB3	(PIN_BASE + 0x20 + 3)
#define	AT91_PIN_PB4	(PIN_BASE + 0x20 + 4)
#define	AT91_PIN_PB5	(PIN_BASE + 0x20 + 5)
#define	AT91_PIN_PB6	(PIN_BASE + 0x20 + 6)
#define	AT91_PIN_PB7	(PIN_BASE + 0x20 + 7)
#define	AT91_PIN_PB8	(PIN_BASE + 0x20 + 8)
#define	AT91_PIN_PB9	(PIN_BASE + 0x20 + 9)
#define	AT91_PIN_PB10	(PIN_BASE + 0x20 + 10)
#define	AT91_PIN_PB11	(PIN_BASE + 0x20 + 11)
#define	AT91_PIN_PB12	(PIN_BASE + 0x20 + 12)
#define	AT91_PIN_PB13	(PIN_BASE + 0x20 + 13)
#define	AT91_PIN_PB14	(PIN_BASE + 0x20 + 14)
#define	AT91_PIN_PB15	(PIN_BASE + 0x20 + 15)
#define	AT91_PIN_PB16	(PIN_BASE + 0x20 + 16)
#define	AT91_PIN_PB17	(PIN_BASE + 0x20 + 17)
#define	AT91_PIN_PB18	(PIN_BASE + 0x20 + 18)
#define	AT91_PIN_PB19	(PIN_BASE + 0x20 + 19)
#define	AT91_PIN_PB20	(PIN_BASE + 0x20 + 20)
#define	AT91_PIN_PB21	(PIN_BASE + 0x20 + 21)
#define	AT91_PIN_PB22	(PIN_BASE + 0x20 + 22)
#define	AT91_PIN_PB23	(PIN_BASE + 0x20 + 23)
#define	AT91_PIN_PB24	(PIN_BASE + 0x20 + 24)
#define	AT91_PIN_PB25	(PIN_BASE + 0x20 + 25)
#define	AT91_PIN_PB26	(PIN_BASE + 0x20 + 26)
#define	AT91_PIN_PB27	(PIN_BASE + 0x20 + 27)
#define	AT91_PIN_PB28	(PIN_BASE + 0x20 + 28)
#define	AT91_PIN_PB29	(PIN_BASE + 0x20 + 29)
#define	AT91_PIN_PB30	(PIN_BASE + 0x20 + 30)
#define	AT91_PIN_PB31	(PIN_BASE + 0x20 + 31)

#define	AT91_PIN_PC0	(PIN_BASE + 0x40 + 0)
#define	AT91_PIN_PC1	(PIN_BASE + 0x40 + 1)
#define	AT91_PIN_PC2	(PIN_BASE + 0x40 + 2)
#define	AT91_PIN_PC3	(PIN_BASE + 0x40 + 3)
#define	AT91_PIN_PC4	(PIN_BASE + 0x40 + 4)
#define	AT91_PIN_PC5	(PIN_BASE + 0x40 + 5)
#define	AT91_PIN_PC6	(PIN_BASE + 0x40 + 6)
#define	AT91_PIN_PC7	(PIN_BASE + 0x40 + 7)
#define	AT91_PIN_PC8	(PIN_BASE + 0x40 + 8)
#define	AT91_PIN_PC9	(PIN_BASE + 0x40 + 9)
#define	AT91_PIN_PC10	(PIN_BASE + 0x40 + 10)
#define	AT91_PIN_PC11	(PIN_BASE + 0x40 + 11)
#define	AT91_PIN_PC12	(PIN_BASE + 0x40 + 12)
#define	AT91_PIN_PC13	(PIN_BASE + 0x40 + 13)
#define	AT91_PIN_PC14	(PIN_BASE + 0x40 + 14)
#define	AT91_PIN_PC15	(PIN_BASE + 0x40 + 15)
#define	AT91_PIN_PC16	(PIN_BASE + 0x40 + 16)
#define	AT91_PIN_PC17	(PIN_BASE + 0x40 + 17)
#define	AT91_PIN_PC18	(PIN_BASE + 0x40 + 18)
#define	AT91_PIN_PC19	(PIN_BASE + 0x40 + 19)
#define	AT91_PIN_PC20	(PIN_BASE + 0x40 + 20)
#define	AT91_PIN_PC21	(PIN_BASE + 0x40 + 21)
#define	AT91_PIN_PC22	(PIN_BASE + 0x40 + 22)
#define	AT91_PIN_PC23	(PIN_BASE + 0x40 + 23)
#define	AT91_PIN_PC24	(PIN_BASE + 0x40 + 24)
#define	AT91_PIN_PC25	(PIN_BASE + 0x40 + 25)
#define	AT91_PIN_PC26	(PIN_BASE + 0x40 + 26)
#define	AT91_PIN_PC27	(PIN_BASE + 0x40 + 27)
#define	AT91_PIN_PC28	(PIN_BASE + 0x40 + 28)
#define	AT91_PIN_PC29	(PIN_BASE + 0x40 + 29)
#define	AT91_PIN_PC30	(PIN_BASE + 0x40 + 30)
#define	AT91_PIN_PC31	(PIN_BASE + 0x40 + 31)

#define	AT91_PIN_PD0	(PIN_BASE + 0x60 + 0)
#define	AT91_PIN_PD1	(PIN_BASE + 0x60 + 1)
#define	AT91_PIN_PD2	(PIN_BASE + 0x60 + 2)
#define	AT91_PIN_PD3	(PIN_BASE + 0x60 + 3)
#define	AT91_PIN_PD4	(PIN_BASE + 0x60 + 4)
#define	AT91_PIN_PD5	(PIN_BASE + 0x60 + 5)
#define	AT91_PIN_PD6	(PIN_BASE + 0x60 + 6)
#define	AT91_PIN_PD7	(PIN_BASE + 0x60 + 7)
#define	AT91_PIN_PD8	(PIN_BASE + 0x60 + 8)
#define	AT91_PIN_PD9	(PIN_BASE + 0x60 + 9)
#define	AT91_PIN_PD10	(PIN_BASE + 0x60 + 10)
#define	AT91_PIN_PD11	(PIN_BASE + 0x60 + 11)
#define	AT91_PIN_PD12	(PIN_BASE + 0x60 + 12)
#define	AT91_PIN_PD13	(PIN_BASE + 0x60 + 13)
#define	AT91_PIN_PD14	(PIN_BASE + 0x60 + 14)
#define	AT91_PIN_PD15	(PIN_BASE + 0x60 + 15)
#define	AT91_PIN_PD16	(PIN_BASE + 0x60 + 16)
#define	AT91_PIN_PD17	(PIN_BASE + 0x60 + 17)
#define	AT91_PIN_PD18	(PIN_BASE + 0x60 + 18)
#define	AT91_PIN_PD19	(PIN_BASE + 0x60 + 19)
#define	AT91_PIN_PD20	(PIN_BASE + 0x60 + 20)
#define	AT91_PIN_PD21	(PIN_BASE + 0x60 + 21)
#define	AT91_PIN_PD22	(PIN_BASE + 0x60 + 22)
#define	AT91_PIN_PD23	(PIN_BASE + 0x60 + 23)
#define	AT91_PIN_PD24	(PIN_BASE + 0x60 + 24)
#define	AT91_PIN_PD25	(PIN_BASE + 0x60 + 25)
#define	AT91_PIN_PD26	(PIN_BASE + 0x60 + 26)
#define	AT91_PIN_PD27	(PIN_BASE + 0x60 + 27)
#define	AT91_PIN_PD28	(PIN_BASE + 0x60 + 28)
#define	AT91_PIN_PD29	(PIN_BASE + 0x60 + 29)
#define	AT91_PIN_PD30	(PIN_BASE + 0x60 + 30)
#define	AT91_PIN_PD31	(PIN_BASE + 0x60 + 31)
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#define	AT91_PIN_PE0	(PIN_BASE + 0x80 + 0)
#define	AT91_PIN_PE1	(PIN_BASE + 0x80 + 1)
#define	AT91_PIN_PE2	(PIN_BASE + 0x80 + 2)
#define	AT91_PIN_PE3	(PIN_BASE + 0x80 + 3)
#define	AT91_PIN_PE4	(PIN_BASE + 0x80 + 4)
#define	AT91_PIN_PE5	(PIN_BASE + 0x80 + 5)
#define	AT91_PIN_PE6	(PIN_BASE + 0x80 + 6)
#define	AT91_PIN_PE7	(PIN_BASE + 0x80 + 7)
#define	AT91_PIN_PE8	(PIN_BASE + 0x80 + 8)
#define	AT91_PIN_PE9	(PIN_BASE + 0x80 + 9)
#define	AT91_PIN_PE10	(PIN_BASE + 0x80 + 10)
#define	AT91_PIN_PE11	(PIN_BASE + 0x80 + 11)
#define	AT91_PIN_PE12	(PIN_BASE + 0x80 + 12)
#define	AT91_PIN_PE13	(PIN_BASE + 0x80 + 13)
#define	AT91_PIN_PE14	(PIN_BASE + 0x80 + 14)
#define	AT91_PIN_PE15	(PIN_BASE + 0x80 + 15)
#define	AT91_PIN_PE16	(PIN_BASE + 0x80 + 16)
#define	AT91_PIN_PE17	(PIN_BASE + 0x80 + 17)
#define	AT91_PIN_PE18	(PIN_BASE + 0x80 + 18)
#define	AT91_PIN_PE19	(PIN_BASE + 0x80 + 19)
#define	AT91_PIN_PE20	(PIN_BASE + 0x80 + 20)
#define	AT91_PIN_PE21	(PIN_BASE + 0x80 + 21)
#define	AT91_PIN_PE22	(PIN_BASE + 0x80 + 22)
#define	AT91_PIN_PE23	(PIN_BASE + 0x80 + 23)
#define	AT91_PIN_PE24	(PIN_BASE + 0x80 + 24)
#define	AT91_PIN_PE25	(PIN_BASE + 0x80 + 25)
#define	AT91_PIN_PE26	(PIN_BASE + 0x80 + 26)
#define	AT91_PIN_PE27	(PIN_BASE + 0x80 + 27)
#define	AT91_PIN_PE28	(PIN_BASE + 0x80 + 28)
#define	AT91_PIN_PE29	(PIN_BASE + 0x80 + 29)
#define	AT91_PIN_PE30	(PIN_BASE + 0x80 + 30)
#define	AT91_PIN_PE31	(PIN_BASE + 0x80 + 31)
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#ifndef __ASSEMBLY__
/* setup setup routines, called from board init or driver probe() */
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extern int __init_or_module at91_set_GPIO_periph(unsigned pin, int use_pullup);
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extern int __init_or_module at91_set_A_periph(unsigned pin, int use_pullup);
extern int __init_or_module at91_set_B_periph(unsigned pin, int use_pullup);
extern int __init_or_module at91_set_gpio_input(unsigned pin, int use_pullup);
extern int __init_or_module at91_set_gpio_output(unsigned pin, int value);
extern int __init_or_module at91_set_deglitch(unsigned pin, int is_on);
extern int __init_or_module at91_set_multi_drive(unsigned pin, int is_on);
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/* callable at any time */
extern int at91_set_gpio_value(unsigned pin, int value);
extern int at91_get_gpio_value(unsigned pin);
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/* callable only from core power-management code */
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extern void at91_gpio_suspend(void);
extern void at91_gpio_resume(void);
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/*-------------------------------------------------------------------------*/

/* wrappers for "new style" GPIO calls. the old AT91-specfic ones should
 * eventually be removed (along with this errno.h inclusion), and the
 * gpio request/free calls should probably be implemented.
 */

#include <asm/errno.h>

static inline int gpio_request(unsigned gpio, const char *label)
{
	return 0;
}

static inline void gpio_free(unsigned gpio)
{
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	might_sleep();
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}

extern int gpio_direction_input(unsigned gpio);
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extern int gpio_direction_output(unsigned gpio, int value);
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static inline int gpio_get_value(unsigned gpio)
{
	return at91_get_gpio_value(gpio);
}

static inline void gpio_set_value(unsigned gpio, int value)
{
	at91_set_gpio_value(gpio, value);
}

#include <asm-generic/gpio.h>		/* cansleep wrappers */

static inline int gpio_to_irq(unsigned gpio)
{
	return gpio;
}

static inline int irq_to_gpio(unsigned irq)
{
	return irq;
}

#endif	/* __ASSEMBLY__ */

#endif