Release 4.14 arch/blackfin/include/asm/gpio.h

/*
 * Copyright 2006-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __ARCH_BLACKFIN_GPIO_H__

#define __ARCH_BLACKFIN_GPIO_H__


#define gpio_bank(x)	((x) >> 4)

#define gpio_bit(x)	(1<<((x) & 0xF))

#define gpio_sub_n(x)	((x) & 0xF)


#define GPIO_BANKSIZE	16

#define GPIO_BANK_NUM	DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)

#include <mach/gpio.h>


#define PERIPHERAL_USAGE 1

#define GPIO_USAGE 0

#ifndef BFIN_GPIO_PINT

# define BFIN_GPIO_PINT 0
#endif

#ifndef __ASSEMBLY__

#ifndef CONFIG_PINCTRL

#include <linux/compiler.h>
#include <asm/blackfin.h>
#include <asm/portmux.h>
#include <asm/irq_handler.h>

/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: These functions abstract direct register access
*              to Blackfin processor General Purpose
*              Ports Regsiters
*
* CAUTION: These functions do not belong to the GPIO Driver API
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/

void set_gpio_dir(unsigned, unsigned short);
void set_gpio_inen(unsigned, unsigned short);
void set_gpio_polar(unsigned, unsigned short);
void set_gpio_edge(unsigned, unsigned short);
void set_gpio_both(unsigned, unsigned short);
void set_gpio_data(unsigned, unsigned short);
void set_gpio_maska(unsigned, unsigned short);
void set_gpio_maskb(unsigned, unsigned short);
void set_gpio_toggle(unsigned);
void set_gpiop_dir(unsigned, unsigned short);
void set_gpiop_inen(unsigned, unsigned short);
void set_gpiop_polar(unsigned, unsigned short);
void set_gpiop_edge(unsigned, unsigned short);
void set_gpiop_both(unsigned, unsigned short);
void set_gpiop_data(unsigned, unsigned short);
void set_gpiop_maska(unsigned, unsigned short);
void set_gpiop_maskb(unsigned, unsigned short);
unsigned short get_gpio_dir(unsigned);
unsigned short get_gpio_inen(unsigned);
unsigned short get_gpio_polar(unsigned);
unsigned short get_gpio_edge(unsigned);
unsigned short get_gpio_both(unsigned);
unsigned short get_gpio_maska(unsigned);
unsigned short get_gpio_maskb(unsigned);
unsigned short get_gpio_data(unsigned);
unsigned short get_gpiop_dir(unsigned);
unsigned short get_gpiop_inen(unsigned);
unsigned short get_gpiop_polar(unsigned);
unsigned short get_gpiop_edge(unsigned);
unsigned short get_gpiop_both(unsigned);
unsigned short get_gpiop_maska(unsigned);
unsigned short get_gpiop_maskb(unsigned);
unsigned short get_gpiop_data(unsigned);


struct gpio_port_t {
	
unsigned short data;
	
unsigned short dummy1;
	
unsigned short data_clear;
	
unsigned short dummy2;
	
unsigned short data_set;
	
unsigned short dummy3;
	
unsigned short toggle;
	
unsigned short dummy4;
	
unsigned short maska;
	
unsigned short dummy5;
	
unsigned short maska_clear;
	
unsigned short dummy6;
	
unsigned short maska_set;
	
unsigned short dummy7;
	
unsigned short maska_toggle;
	
unsigned short dummy8;
	
unsigned short maskb;
	
unsigned short dummy9;
	
unsigned short maskb_clear;
	
unsigned short dummy10;
	
unsigned short maskb_set;
	
unsigned short dummy11;
	
unsigned short maskb_toggle;
	
unsigned short dummy12;
	
unsigned short dir;
	
unsigned short dummy13;
	
unsigned short polar;
	
unsigned short dummy14;
	
unsigned short edge;
	
unsigned short dummy15;
	
unsigned short both;
	
unsigned short dummy16;
	
unsigned short inen;
};

#ifdef BFIN_SPECIAL_GPIO_BANKS
void bfin_special_gpio_free(unsigned gpio);
int bfin_special_gpio_request(unsigned gpio, const char *label);
# ifdef CONFIG_PM
void bfin_special_gpio_pm_hibernate_restore(void);
void bfin_special_gpio_pm_hibernate_suspend(void);
# endif
#endif

#ifdef CONFIG_PM
void bfin_gpio_pm_hibernate_restore(void);
void bfin_gpio_pm_hibernate_suspend(void);
int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
int bfin_gpio_pm_standby_ctrl(unsigned ctrl);



static inline int bfin_pm_standby_setup(void)
{
	return bfin_gpio_pm_standby_ctrl(1);
}

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static inline void bfin_pm_standby_restore(void)
{
	bfin_gpio_pm_standby_ctrl(0);
}


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struct gpio_port_s {
	
unsigned short data;
	
unsigned short maska;
	
unsigned short maskb;
	
unsigned short dir;
	
unsigned short polar;
	
unsigned short edge;
	
unsigned short both;
	
unsigned short inen;

	
unsigned short fer;
	
unsigned short reserved;
	
unsigned short mux;
};
#endif /*CONFIG_PM*/

/***********************************************************
*
* FUNCTIONS: Blackfin GPIO Driver
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: Blackfin GPIO Driver API
*
* CAUTION:
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/
int bfin_gpio_irq_request(unsigned gpio, const char *label);
void bfin_gpio_irq_free(unsigned gpio);
void bfin_gpio_irq_prepare(unsigned gpio);



static inline int irq_to_gpio(unsigned irq)
{
	return irq - GPIO_IRQ_BASE;
}
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#endif /* CONFIG_PINCTRL */

#include <asm/irq.h>
#include <asm/errno.h>

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



static inline int gpio_get_value(unsigned int gpio)
{
	return __gpio_get_value(gpio);
}

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

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static inline int gpio_cansleep(unsigned int gpio)
{
	return __gpio_cansleep(gpio);
}

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static inline int gpio_to_irq(unsigned gpio)
{
	return __gpio_to_irq(gpio);
}
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#endif /* __ASSEMBLY__ */

#endif /* __ARCH_BLACKFIN_GPIO_H__ */
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Directory: arch/blackfin/include/asm

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