/* * Copyright 2012-15 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ #ifndef __DAL_GPIO_INTERFACE_H__#define __DAL_GPIO_INTERFACE_H__ #include "gpio_types.h"#include "grph_object_defs.h" struct gpio; /* Open the handle for future use */enum gpio_result dal_gpio_open(	struct gpio *gpio,	enum gpio_mode mode); enum gpio_result dal_gpio_open_ex(	struct gpio *gpio,	enum gpio_mode mode); /* Get high or low from the pin */enum gpio_result dal_gpio_get_value(	const struct gpio *gpio,	uint32_t *value); /* Set pin high or low */enum gpio_result dal_gpio_set_value(	const struct gpio *gpio,	uint32_t value); /* Get current mode */enum gpio_mode dal_gpio_get_mode(	const struct gpio *gpio); /* Change mode of the handle */enum gpio_result dal_gpio_change_mode(	struct gpio *gpio,	enum gpio_mode mode); /* Lock Pin */enum gpio_result dal_gpio_lock_pin(	struct gpio *gpio); /* Unlock Pin */enum gpio_result dal_gpio_unlock_pin(	struct gpio *gpio); /* Get the GPIO id */enum gpio_id dal_gpio_get_id(	const struct gpio *gpio); /* Get the GPIO enum */uint32_t dal_gpio_get_enum(	const struct gpio *gpio); /* Set the GPIO pin configuration */enum gpio_result dal_gpio_set_config(	struct gpio *gpio,	const struct gpio_config_data *config_data); /* Obtain GPIO pin info */enum gpio_result dal_gpio_get_pin_info(	const struct gpio *gpio,	struct gpio_pin_info *pin_info); /* Obtain GPIO sync source */enum sync_source dal_gpio_get_sync_source(	const struct gpio *gpio); /* Obtain GPIO pin output state (active low or active high) */enum gpio_pin_output_state dal_gpio_get_output_state(	const struct gpio *gpio); struct hw_ddc *dal_gpio_get_ddc(struct gpio *gpio); struct hw_hpd *dal_gpio_get_hpd(struct gpio *gpio); struct hw_generic *dal_gpio_get_generic(struct gpio *gpio); /* Close the handle */void dal_gpio_close(	struct gpio *gpio);    #endif