diff options
Diffstat (limited to 'arch/blackfin/include/asm/gpio.h')
| -rw-r--r-- | arch/blackfin/include/asm/gpio.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h new file mode 100644 index 0000000..58a6191 --- /dev/null +++ b/arch/blackfin/include/asm/gpio.h @@ -0,0 +1,213 @@ +/* + * 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> + +#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; +}; +#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__ */ |
