11ffecc24SHaojian Zhuang /* 2*57bf6057SJulius Werner * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved. 31ffecc24SHaojian Zhuang * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 51ffecc24SHaojian Zhuang */ 61ffecc24SHaojian Zhuang 7c3cf06f1SAntonio Nino Diaz #ifndef GPIO_H 8c3cf06f1SAntonio Nino Diaz #define GPIO_H 91ffecc24SHaojian Zhuang 10*57bf6057SJulius Werner #include <export/drivers/gpio_exp.h> 111ffecc24SHaojian Zhuang 12*57bf6057SJulius Werner #define GPIO_DIR_OUT ARM_TF_GPIO_DIR_OUT 13*57bf6057SJulius Werner #define GPIO_DIR_IN ARM_TF_GPIO_DIR_IN 141ffecc24SHaojian Zhuang 15*57bf6057SJulius Werner #define GPIO_LEVEL_LOW ARM_TF_GPIO_LEVEL_LOW 16*57bf6057SJulius Werner #define GPIO_LEVEL_HIGH ARM_TF_GPIO_LEVEL_HIGH 17*57bf6057SJulius Werner 18*57bf6057SJulius Werner #define GPIO_PULL_NONE ARM_TF_GPIO_PULL_NONE 19*57bf6057SJulius Werner #define GPIO_PULL_UP ARM_TF_GPIO_PULL_UP 20*57bf6057SJulius Werner #define GPIO_PULL_DOWN ARM_TF_GPIO_PULL_DOWN 2119588982SCaesar Wang 221ffecc24SHaojian Zhuang typedef struct gpio_ops { 231ffecc24SHaojian Zhuang int (*get_direction)(int gpio); 241ffecc24SHaojian Zhuang void (*set_direction)(int gpio, int direction); 251ffecc24SHaojian Zhuang int (*get_value)(int gpio); 261ffecc24SHaojian Zhuang void (*set_value)(int gpio, int value); 2719588982SCaesar Wang void (*set_pull)(int gpio, int pull); 2819588982SCaesar Wang int (*get_pull)(int gpio); 291ffecc24SHaojian Zhuang } gpio_ops_t; 301ffecc24SHaojian Zhuang 311ffecc24SHaojian Zhuang int gpio_get_direction(int gpio); 321ffecc24SHaojian Zhuang void gpio_set_direction(int gpio, int direction); 331ffecc24SHaojian Zhuang int gpio_get_value(int gpio); 341ffecc24SHaojian Zhuang void gpio_set_value(int gpio, int value); 3519588982SCaesar Wang void gpio_set_pull(int gpio, int pull); 3619588982SCaesar Wang int gpio_get_pull(int gpio); 371ffecc24SHaojian Zhuang void gpio_init(const gpio_ops_t *ops); 381ffecc24SHaojian Zhuang 39c3cf06f1SAntonio Nino Diaz #endif /* GPIO_H */ 40