forked from Minki/linux
aab2393e2e
The GPIO API was extended recently to include debounce functions, but since the on-chip Blackfin GPIO modules don't support this stuff, make a stub in the non-GPIOLIB case so drivers build properly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
316 lines
7.4 KiB
C
316 lines
7.4 KiB
C
/*
|
|
* 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 GPIO_0 0
|
|
#define GPIO_1 1
|
|
#define GPIO_2 2
|
|
#define GPIO_3 3
|
|
#define GPIO_4 4
|
|
#define GPIO_5 5
|
|
#define GPIO_6 6
|
|
#define GPIO_7 7
|
|
#define GPIO_8 8
|
|
#define GPIO_9 9
|
|
#define GPIO_10 10
|
|
#define GPIO_11 11
|
|
#define GPIO_12 12
|
|
#define GPIO_13 13
|
|
#define GPIO_14 14
|
|
#define GPIO_15 15
|
|
#define GPIO_16 16
|
|
#define GPIO_17 17
|
|
#define GPIO_18 18
|
|
#define GPIO_19 19
|
|
#define GPIO_20 20
|
|
#define GPIO_21 21
|
|
#define GPIO_22 22
|
|
#define GPIO_23 23
|
|
#define GPIO_24 24
|
|
#define GPIO_25 25
|
|
#define GPIO_26 26
|
|
#define GPIO_27 27
|
|
#define GPIO_28 28
|
|
#define GPIO_29 29
|
|
#define GPIO_30 30
|
|
#define GPIO_31 31
|
|
#define GPIO_32 32
|
|
#define GPIO_33 33
|
|
#define GPIO_34 34
|
|
#define GPIO_35 35
|
|
#define GPIO_36 36
|
|
#define GPIO_37 37
|
|
#define GPIO_38 38
|
|
#define GPIO_39 39
|
|
#define GPIO_40 40
|
|
#define GPIO_41 41
|
|
#define GPIO_42 42
|
|
#define GPIO_43 43
|
|
#define GPIO_44 44
|
|
#define GPIO_45 45
|
|
#define GPIO_46 46
|
|
#define GPIO_47 47
|
|
|
|
#define PERIPHERAL_USAGE 1
|
|
#define GPIO_USAGE 0
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/compiler.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 :
|
|
**************************************************************/
|
|
|
|
#ifndef CONFIG_BF54x
|
|
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;
|
|
};
|
|
#endif
|
|
|
|
#ifdef BFIN_SPECIAL_GPIO_BANKS
|
|
void bfin_special_gpio_free(unsigned gpio);
|
|
int bfin_special_gpio_request(unsigned gpio, const char *label);
|
|
#endif
|
|
|
|
#ifdef CONFIG_PM
|
|
int bfin_pm_standby_ctrl(unsigned ctrl);
|
|
|
|
static inline int bfin_pm_standby_setup(void)
|
|
{
|
|
return bfin_pm_standby_ctrl(1);
|
|
}
|
|
|
|
static inline void bfin_pm_standby_restore(void)
|
|
{
|
|
bfin_pm_standby_ctrl(0);
|
|
}
|
|
|
|
void bfin_gpio_pm_hibernate_restore(void);
|
|
void bfin_gpio_pm_hibernate_suspend(void);
|
|
|
|
#ifndef CONFIG_BF54x
|
|
int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
|
|
|
|
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_BF54x*/
|
|
#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_request(unsigned gpio, const char *label);
|
|
void bfin_gpio_free(unsigned gpio);
|
|
int bfin_gpio_irq_request(unsigned gpio, const char *label);
|
|
void bfin_gpio_irq_free(unsigned gpio);
|
|
int bfin_gpio_direction_input(unsigned gpio);
|
|
int bfin_gpio_direction_output(unsigned gpio, int value);
|
|
int bfin_gpio_get_value(unsigned gpio);
|
|
void bfin_gpio_set_value(unsigned gpio, int value);
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/errno.h>
|
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
#include <asm-generic/gpio.h> /* cansleep wrappers */
|
|
|
|
static inline int gpio_get_value(unsigned int gpio)
|
|
{
|
|
if (gpio < MAX_BLACKFIN_GPIOS)
|
|
return bfin_gpio_get_value(gpio);
|
|
else
|
|
return __gpio_get_value(gpio);
|
|
}
|
|
|
|
static inline void gpio_set_value(unsigned int gpio, int value)
|
|
{
|
|
if (gpio < MAX_BLACKFIN_GPIOS)
|
|
bfin_gpio_set_value(gpio, value);
|
|
else
|
|
__gpio_set_value(gpio, value);
|
|
}
|
|
|
|
static inline int gpio_cansleep(unsigned int gpio)
|
|
{
|
|
return __gpio_cansleep(gpio);
|
|
}
|
|
|
|
static inline int gpio_to_irq(unsigned gpio)
|
|
{
|
|
return __gpio_to_irq(gpio);
|
|
}
|
|
|
|
#else /* !CONFIG_GPIOLIB */
|
|
|
|
static inline int gpio_request(unsigned gpio, const char *label)
|
|
{
|
|
return bfin_gpio_request(gpio, label);
|
|
}
|
|
|
|
static inline void gpio_free(unsigned gpio)
|
|
{
|
|
return bfin_gpio_free(gpio);
|
|
}
|
|
|
|
static inline int gpio_direction_input(unsigned gpio)
|
|
{
|
|
return bfin_gpio_direction_input(gpio);
|
|
}
|
|
|
|
static inline int gpio_direction_output(unsigned gpio, int value)
|
|
{
|
|
return bfin_gpio_direction_output(gpio, value);
|
|
}
|
|
|
|
static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int gpio_get_value(unsigned gpio)
|
|
{
|
|
return bfin_gpio_get_value(gpio);
|
|
}
|
|
|
|
static inline void gpio_set_value(unsigned gpio, int value)
|
|
{
|
|
return bfin_gpio_set_value(gpio, value);
|
|
}
|
|
|
|
static inline int gpio_to_irq(unsigned gpio)
|
|
{
|
|
if (likely(gpio < MAX_BLACKFIN_GPIOS))
|
|
return gpio + GPIO_IRQ_BASE;
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
#include <asm-generic/gpio.h> /* cansleep wrappers */
|
|
#endif /* !CONFIG_GPIOLIB */
|
|
|
|
static inline int irq_to_gpio(unsigned irq)
|
|
{
|
|
return (irq - GPIO_IRQ_BASE);
|
|
}
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __ARCH_BLACKFIN_GPIO_H__ */
|