| /* |
| * 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 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 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) |
| { |
| if (likely(gpio < MAX_BLACKFIN_GPIOS)) |
| return gpio + GPIO_IRQ_BASE; |
| |
| return -EINVAL; |
| } |
| |
| static inline int irq_to_gpio(unsigned irq) |
| { |
| return (irq - GPIO_IRQ_BASE); |
| } |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* __ARCH_BLACKFIN_GPIO_H__ */ |