/* * 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 */ #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__ /*********************************************************** * * 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_standby_setup(void); void bfin_pm_standby_restore(void); void bfin_gpio_pm_hibernate_restore(void); void bfin_gpio_pm_hibernate_suspend(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 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); #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); } #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_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); } #include <asm-generic/gpio.h> /* cansleep wrappers */ #endif /* !CONFIG_GPIOLIB */ #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__ */