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linux/arch/arm/mach-at91/include/mach/gpio.h
Nicolas Ferre 582d5fbd4e ARM: at91/pio: add new PIO3 features 
This patch adds the support for new PIO controller found on some
at91sam SOCs.
- more peripheral multiplexing
- more features to configure on a PIO (pull-down, Schmitt trigger, debouncer)
- support for several IRQ triggering features (type and polarity)

Support for those new features are retrieved from the device tree
compatibility string.

Debugfs at91_gpio file is updated to monitor configuration.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-01 13:38:50 +01:00

215 lines
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/*
* arch/arm/mach-at91/include/mach/gpio.h
*
* 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
#include <linux/kernel.h>
#include <asm/irq.h>
#define MAX_GPIO_BANKS 5
#define NR_BUILTIN_GPIO (MAX_GPIO_BANKS * 32)
/* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
#define AT91_PIN_PA0 (0x00 + 0)
#define AT91_PIN_PA1 (0x00 + 1)
#define AT91_PIN_PA2 (0x00 + 2)
#define AT91_PIN_PA3 (0x00 + 3)
#define AT91_PIN_PA4 (0x00 + 4)
#define AT91_PIN_PA5 (0x00 + 5)
#define AT91_PIN_PA6 (0x00 + 6)
#define AT91_PIN_PA7 (0x00 + 7)
#define AT91_PIN_PA8 (0x00 + 8)
#define AT91_PIN_PA9 (0x00 + 9)
#define AT91_PIN_PA10 (0x00 + 10)
#define AT91_PIN_PA11 (0x00 + 11)
#define AT91_PIN_PA12 (0x00 + 12)
#define AT91_PIN_PA13 (0x00 + 13)
#define AT91_PIN_PA14 (0x00 + 14)
#define AT91_PIN_PA15 (0x00 + 15)
#define AT91_PIN_PA16 (0x00 + 16)
#define AT91_PIN_PA17 (0x00 + 17)
#define AT91_PIN_PA18 (0x00 + 18)
#define AT91_PIN_PA19 (0x00 + 19)
#define AT91_PIN_PA20 (0x00 + 20)
#define AT91_PIN_PA21 (0x00 + 21)
#define AT91_PIN_PA22 (0x00 + 22)
#define AT91_PIN_PA23 (0x00 + 23)
#define AT91_PIN_PA24 (0x00 + 24)
#define AT91_PIN_PA25 (0x00 + 25)
#define AT91_PIN_PA26 (0x00 + 26)
#define AT91_PIN_PA27 (0x00 + 27)
#define AT91_PIN_PA28 (0x00 + 28)
#define AT91_PIN_PA29 (0x00 + 29)
#define AT91_PIN_PA30 (0x00 + 30)
#define AT91_PIN_PA31 (0x00 + 31)
#define AT91_PIN_PB0 (0x20 + 0)
#define AT91_PIN_PB1 (0x20 + 1)
#define AT91_PIN_PB2 (0x20 + 2)
#define AT91_PIN_PB3 (0x20 + 3)
#define AT91_PIN_PB4 (0x20 + 4)
#define AT91_PIN_PB5 (0x20 + 5)
#define AT91_PIN_PB6 (0x20 + 6)
#define AT91_PIN_PB7 (0x20 + 7)
#define AT91_PIN_PB8 (0x20 + 8)
#define AT91_PIN_PB9 (0x20 + 9)
#define AT91_PIN_PB10 (0x20 + 10)
#define AT91_PIN_PB11 (0x20 + 11)
#define AT91_PIN_PB12 (0x20 + 12)
#define AT91_PIN_PB13 (0x20 + 13)
#define AT91_PIN_PB14 (0x20 + 14)
#define AT91_PIN_PB15 (0x20 + 15)
#define AT91_PIN_PB16 (0x20 + 16)
#define AT91_PIN_PB17 (0x20 + 17)
#define AT91_PIN_PB18 (0x20 + 18)
#define AT91_PIN_PB19 (0x20 + 19)
#define AT91_PIN_PB20 (0x20 + 20)
#define AT91_PIN_PB21 (0x20 + 21)
#define AT91_PIN_PB22 (0x20 + 22)
#define AT91_PIN_PB23 (0x20 + 23)
#define AT91_PIN_PB24 (0x20 + 24)
#define AT91_PIN_PB25 (0x20 + 25)
#define AT91_PIN_PB26 (0x20 + 26)
#define AT91_PIN_PB27 (0x20 + 27)
#define AT91_PIN_PB28 (0x20 + 28)
#define AT91_PIN_PB29 (0x20 + 29)
#define AT91_PIN_PB30 (0x20 + 30)
#define AT91_PIN_PB31 (0x20 + 31)
#define AT91_PIN_PC0 (0x40 + 0)
#define AT91_PIN_PC1 (0x40 + 1)
#define AT91_PIN_PC2 (0x40 + 2)
#define AT91_PIN_PC3 (0x40 + 3)
#define AT91_PIN_PC4 (0x40 + 4)
#define AT91_PIN_PC5 (0x40 + 5)
#define AT91_PIN_PC6 (0x40 + 6)
#define AT91_PIN_PC7 (0x40 + 7)
#define AT91_PIN_PC8 (0x40 + 8)
#define AT91_PIN_PC9 (0x40 + 9)
#define AT91_PIN_PC10 (0x40 + 10)
#define AT91_PIN_PC11 (0x40 + 11)
#define AT91_PIN_PC12 (0x40 + 12)
#define AT91_PIN_PC13 (0x40 + 13)
#define AT91_PIN_PC14 (0x40 + 14)
#define AT91_PIN_PC15 (0x40 + 15)
#define AT91_PIN_PC16 (0x40 + 16)
#define AT91_PIN_PC17 (0x40 + 17)
#define AT91_PIN_PC18 (0x40 + 18)
#define AT91_PIN_PC19 (0x40 + 19)
#define AT91_PIN_PC20 (0x40 + 20)
#define AT91_PIN_PC21 (0x40 + 21)
#define AT91_PIN_PC22 (0x40 + 22)
#define AT91_PIN_PC23 (0x40 + 23)
#define AT91_PIN_PC24 (0x40 + 24)
#define AT91_PIN_PC25 (0x40 + 25)
#define AT91_PIN_PC26 (0x40 + 26)
#define AT91_PIN_PC27 (0x40 + 27)
#define AT91_PIN_PC28 (0x40 + 28)
#define AT91_PIN_PC29 (0x40 + 29)
#define AT91_PIN_PC30 (0x40 + 30)
#define AT91_PIN_PC31 (0x40 + 31)
#define AT91_PIN_PD0 (0x60 + 0)
#define AT91_PIN_PD1 (0x60 + 1)
#define AT91_PIN_PD2 (0x60 + 2)
#define AT91_PIN_PD3 (0x60 + 3)
#define AT91_PIN_PD4 (0x60 + 4)
#define AT91_PIN_PD5 (0x60 + 5)
#define AT91_PIN_PD6 (0x60 + 6)
#define AT91_PIN_PD7 (0x60 + 7)
#define AT91_PIN_PD8 (0x60 + 8)
#define AT91_PIN_PD9 (0x60 + 9)
#define AT91_PIN_PD10 (0x60 + 10)
#define AT91_PIN_PD11 (0x60 + 11)
#define AT91_PIN_PD12 (0x60 + 12)
#define AT91_PIN_PD13 (0x60 + 13)
#define AT91_PIN_PD14 (0x60 + 14)
#define AT91_PIN_PD15 (0x60 + 15)
#define AT91_PIN_PD16 (0x60 + 16)
#define AT91_PIN_PD17 (0x60 + 17)
#define AT91_PIN_PD18 (0x60 + 18)
#define AT91_PIN_PD19 (0x60 + 19)
#define AT91_PIN_PD20 (0x60 + 20)
#define AT91_PIN_PD21 (0x60 + 21)
#define AT91_PIN_PD22 (0x60 + 22)
#define AT91_PIN_PD23 (0x60 + 23)
#define AT91_PIN_PD24 (0x60 + 24)
#define AT91_PIN_PD25 (0x60 + 25)
#define AT91_PIN_PD26 (0x60 + 26)
#define AT91_PIN_PD27 (0x60 + 27)
#define AT91_PIN_PD28 (0x60 + 28)
#define AT91_PIN_PD29 (0x60 + 29)
#define AT91_PIN_PD30 (0x60 + 30)
#define AT91_PIN_PD31 (0x60 + 31)
#define AT91_PIN_PE0 (0x80 + 0)
#define AT91_PIN_PE1 (0x80 + 1)
#define AT91_PIN_PE2 (0x80 + 2)
#define AT91_PIN_PE3 (0x80 + 3)
#define AT91_PIN_PE4 (0x80 + 4)
#define AT91_PIN_PE5 (0x80 + 5)
#define AT91_PIN_PE6 (0x80 + 6)
#define AT91_PIN_PE7 (0x80 + 7)
#define AT91_PIN_PE8 (0x80 + 8)
#define AT91_PIN_PE9 (0x80 + 9)
#define AT91_PIN_PE10 (0x80 + 10)
#define AT91_PIN_PE11 (0x80 + 11)
#define AT91_PIN_PE12 (0x80 + 12)
#define AT91_PIN_PE13 (0x80 + 13)
#define AT91_PIN_PE14 (0x80 + 14)
#define AT91_PIN_PE15 (0x80 + 15)
#define AT91_PIN_PE16 (0x80 + 16)
#define AT91_PIN_PE17 (0x80 + 17)
#define AT91_PIN_PE18 (0x80 + 18)
#define AT91_PIN_PE19 (0x80 + 19)
#define AT91_PIN_PE20 (0x80 + 20)
#define AT91_PIN_PE21 (0x80 + 21)
#define AT91_PIN_PE22 (0x80 + 22)
#define AT91_PIN_PE23 (0x80 + 23)
#define AT91_PIN_PE24 (0x80 + 24)
#define AT91_PIN_PE25 (0x80 + 25)
#define AT91_PIN_PE26 (0x80 + 26)
#define AT91_PIN_PE27 (0x80 + 27)
#define AT91_PIN_PE28 (0x80 + 28)
#define AT91_PIN_PE29 (0x80 + 29)
#define AT91_PIN_PE30 (0x80 + 30)
#define AT91_PIN_PE31 (0x80 + 31)
#ifndef __ASSEMBLY__
/* setup setup routines, called from board init or driver probe() */
extern int __init_or_module at91_set_GPIO_periph(unsigned pin, int use_pullup);
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_C_periph(unsigned pin, int use_pullup);
extern int __init_or_module at91_set_D_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_debounce(unsigned pin, int is_on, int div);
extern int __init_or_module at91_set_multi_drive(unsigned pin, int is_on);
extern int __init_or_module at91_set_pulldown(unsigned pin, int is_on);
extern int __init_or_module at91_disable_schmitt_trig(unsigned pin);
/* callable at any time */
extern int at91_set_gpio_value(unsigned pin, int value);
extern int at91_get_gpio_value(unsigned pin);
/* callable only from core power-management code */
extern void at91_gpio_suspend(void);
extern void at91_gpio_resume(void);
#endif /* __ASSEMBLY__ */
#endif
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