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linux/include/asm-blackfin/gpio.h
Michael Hennerich 803a8d2acb Blackfin arch: Add workaround to read edge triggered GPIOs 
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 16:01:51 +08:00

462 lines
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/*
* File: arch/blackfin/kernel/bfin_gpio.h
* Based on:
* Author: Michael Hennerich (hennerich@blackfin.uclinux.org)
*
* Created:
* Description:
*
* Modified:
* Copyright 2004-2008 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see the file COPYING, or write
* to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Number BF537/6/4 BF561 BF533/2/1
* BF527/5/2
*
* GPIO_0 PF0 PF0 PF0
* GPIO_1 PF1 PF1 PF1
* GPIO_2 PF2 PF2 PF2
* GPIO_3 PF3 PF3 PF3
* GPIO_4 PF4 PF4 PF4
* GPIO_5 PF5 PF5 PF5
* GPIO_6 PF6 PF6 PF6
* GPIO_7 PF7 PF7 PF7
* GPIO_8 PF8 PF8 PF8
* GPIO_9 PF9 PF9 PF9
* GPIO_10 PF10 PF10 PF10
* GPIO_11 PF11 PF11 PF11
* GPIO_12 PF12 PF12 PF12
* GPIO_13 PF13 PF13 PF13
* GPIO_14 PF14 PF14 PF14
* GPIO_15 PF15 PF15 PF15
* GPIO_16 PG0 PF16
* GPIO_17 PG1 PF17
* GPIO_18 PG2 PF18
* GPIO_19 PG3 PF19
* GPIO_20 PG4 PF20
* GPIO_21 PG5 PF21
* GPIO_22 PG6 PF22
* GPIO_23 PG7 PF23
* GPIO_24 PG8 PF24
* GPIO_25 PG9 PF25
* GPIO_26 PG10 PF26
* GPIO_27 PG11 PF27
* GPIO_28 PG12 PF28
* GPIO_29 PG13 PF29
* GPIO_30 PG14 PF30
* GPIO_31 PG15 PF31
* GPIO_32 PH0 PF32
* GPIO_33 PH1 PF33
* GPIO_34 PH2 PF34
* GPIO_35 PH3 PF35
* GPIO_36 PH4 PF36
* GPIO_37 PH5 PF37
* GPIO_38 PH6 PF38
* GPIO_39 PH7 PF39
* GPIO_40 PH8 PF40
* GPIO_41 PH9 PF41
* GPIO_42 PH10 PF42
* GPIO_43 PH11 PF43
* GPIO_44 PH12 PF44
* GPIO_45 PH13 PF45
* GPIO_46 PH14 PF46
* GPIO_47 PH15 PF47
*/
#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_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
#ifdef BF533_FAMILY
#define MAX_BLACKFIN_GPIOS 16
#define GPIO_PF0 0
#define GPIO_PF1 1
#define GPIO_PF2 2
#define GPIO_PF3 3
#define GPIO_PF4 4
#define GPIO_PF5 5
#define GPIO_PF6 6
#define GPIO_PF7 7
#define GPIO_PF8 8
#define GPIO_PF9 9
#define GPIO_PF10 10
#define GPIO_PF11 11
#define GPIO_PF12 12
#define GPIO_PF13 13
#define GPIO_PF14 14
#define GPIO_PF15 15
#endif
#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
#define MAX_BLACKFIN_GPIOS 48
#define GPIO_PF0 0
#define GPIO_PF1 1
#define GPIO_PF2 2
#define GPIO_PF3 3
#define GPIO_PF4 4
#define GPIO_PF5 5
#define GPIO_PF6 6
#define GPIO_PF7 7
#define GPIO_PF8 8
#define GPIO_PF9 9
#define GPIO_PF10 10
#define GPIO_PF11 11
#define GPIO_PF12 12
#define GPIO_PF13 13
#define GPIO_PF14 14
#define GPIO_PF15 15
#define GPIO_PG0 16
#define GPIO_PG1 17
#define GPIO_PG2 18
#define GPIO_PG3 19
#define GPIO_PG4 20
#define GPIO_PG5 21
#define GPIO_PG6 22
#define GPIO_PG7 23
#define GPIO_PG8 24
#define GPIO_PG9 25
#define GPIO_PG10 26
#define GPIO_PG11 27
#define GPIO_PG12 28
#define GPIO_PG13 29
#define GPIO_PG14 30
#define GPIO_PG15 31
#define GPIO_PH0 32
#define GPIO_PH1 33
#define GPIO_PH2 34
#define GPIO_PH3 35
#define GPIO_PH4 36
#define GPIO_PH5 37
#define GPIO_PH6 38
#define GPIO_PH7 39
#define GPIO_PH8 40
#define GPIO_PH9 41
#define GPIO_PH10 42
#define GPIO_PH11 43
#define GPIO_PH12 44
#define GPIO_PH13 45
#define GPIO_PH14 46
#define GPIO_PH15 47
#define PORT_F GPIO_PF0
#define PORT_G GPIO_PG0
#define PORT_H GPIO_PH0
#endif
#ifdef BF548_FAMILY
#include <asm-blackfin/mach-bf548/gpio.h>
#endif
#ifdef BF561_FAMILY
#define MAX_BLACKFIN_GPIOS 48
#define GPIO_PF0 0
#define GPIO_PF1 1
#define GPIO_PF2 2
#define GPIO_PF3 3
#define GPIO_PF4 4
#define GPIO_PF5 5
#define GPIO_PF6 6
#define GPIO_PF7 7
#define GPIO_PF8 8
#define GPIO_PF9 9
#define GPIO_PF10 10
#define GPIO_PF11 11
#define GPIO_PF12 12
#define GPIO_PF13 13
#define GPIO_PF14 14
#define GPIO_PF15 15
#define GPIO_PF16 16
#define GPIO_PF17 17
#define GPIO_PF18 18
#define GPIO_PF19 19
#define GPIO_PF20 20
#define GPIO_PF21 21
#define GPIO_PF22 22
#define GPIO_PF23 23
#define GPIO_PF24 24
#define GPIO_PF25 25
#define GPIO_PF26 26
#define GPIO_PF27 27
#define GPIO_PF28 28
#define GPIO_PF29 29
#define GPIO_PF30 30
#define GPIO_PF31 31
#define GPIO_PF32 32
#define GPIO_PF33 33
#define GPIO_PF34 34
#define GPIO_PF35 35
#define GPIO_PF36 36
#define GPIO_PF37 37
#define GPIO_PF38 38
#define GPIO_PF39 39
#define GPIO_PF40 40
#define GPIO_PF41 41
#define GPIO_PF42 42
#define GPIO_PF43 43
#define GPIO_PF44 44
#define GPIO_PF45 45
#define GPIO_PF46 46
#define GPIO_PF47 47
#define PORT_FIO0 GPIO_0
#define PORT_FIO1 GPIO_16
#define PORT_FIO2 GPIO_32
#endif
#ifndef __ASSEMBLY__
/***********************************************************
*
* 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 BF548_FAMILY
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 CONFIG_PM
unsigned int bfin_pm_setup(void);
void bfin_pm_restore(void);
#ifndef CONFIG_BF54x
#define PM_WAKE_RISING 0x1
#define PM_WAKE_FALLING 0x2
#define PM_WAKE_HIGH 0x4
#define PM_WAKE_LOW 0x8
#define PM_WAKE_BOTH_EDGES (PM_WAKE_RISING | PM_WAKE_FALLING)
#define PM_WAKE_IGNORE 0xF0
int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
void gpio_pm_wakeup_free(unsigned gpio);
struct gpio_port_s {
unsigned short data;
unsigned short data_clear;
unsigned short data_set;
unsigned short toggle;
unsigned short maska;
unsigned short maska_clear;
unsigned short maska_set;
unsigned short maska_toggle;
unsigned short maskb;
unsigned short maskb_clear;
unsigned short maskb_set;
unsigned short maskb_toggle;
unsigned short dir;
unsigned short polar;
unsigned short edge;
unsigned short both;
unsigned short inen;
unsigned short fer;
unsigned short reserved;
};
#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 gpio_request(unsigned, const char *);
void gpio_free(unsigned);
void gpio_set_value(unsigned gpio, int arg);
int gpio_get_value(unsigned gpio);
#ifndef BF548_FAMILY
#define gpio_set_value(gpio, value) set_gpio_data(gpio, value)
#endif
int gpio_direction_input(unsigned gpio);
int gpio_direction_output(unsigned gpio, int value);
#include <asm-generic/gpio.h> /* cansleep wrappers */
#include <asm/irq.h>
static inline int gpio_to_irq(unsigned gpio)
{
return (gpio + GPIO_IRQ_BASE);
}
static inline int irq_to_gpio(unsigned irq)
{
return (irq - GPIO_IRQ_BASE);
}
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_BLACKFIN_GPIO_H__ */
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