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/*
* Copyright 2006-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __ARCH_BLACKFIN_GPIO_H__
#define __ARCH_BLACKFIN_GPIO_H__
#include <asm-generic/gpio.h>
#include <asm/portmux.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)
#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
#define MAX_GPIOS MAX_BLACKFIN_GPIOS
#ifndef __ASSEMBLY__
#ifdef CONFIG_ADI_GPIO1
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;
};
#else
extern struct gpio_port_t * const gpio_array[];
#endif
#ifdef ADI_SPECIAL_GPIO_BANKS
void special_gpio_free(unsigned gpio);
int special_gpio_request(unsigned gpio, const char *label);
#endif
void gpio_labels(void);
static inline int gpio_is_valid(int number)
{
return number >= 0 && number < MAX_GPIOS;
}
#include <linux/ctype.h>
static inline int name_to_gpio(const char *name)
{
int port_base;
if (tolower(*name) == 'p') {
++name;
switch (tolower(*name)) {
#ifdef GPIO_PA0
case 'a': port_base = GPIO_PA0; break;
#endif
#ifdef GPIO_PB0
case 'b': port_base = GPIO_PB0; break;
#endif
#ifdef GPIO_PC0
case 'c': port_base = GPIO_PC0; break;
#endif
#ifdef GPIO_PD0
case 'd': port_base = GPIO_PD0; break;
#endif
#ifdef GPIO_PE0
case 'e': port_base = GPIO_PE0; break;
#endif
#ifdef GPIO_PF0
case 'f': port_base = GPIO_PF0; break;
#endif
#ifdef GPIO_PG0
case 'g': port_base = GPIO_PG0; break;
#endif
#ifdef GPIO_PH0
case 'h': port_base = GPIO_PH0; break;
#endif
#ifdef GPIO_PI0
case 'i': port_base = GPIO_PI0; break;
#endif
#ifdef GPIO_PJ
case 'j': port_base = GPIO_PJ0; break;
#endif
default: return -1;
}
++name;
} else
port_base = 0;
return port_base + simple_strtoul(name, NULL, 10);
}
#define name_to_gpio(n) name_to_gpio(n)
#define gpio_status() gpio_labels()
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_BLACKFIN_GPIO_H__ */
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