110 lines · c
1/*2 * Copyright 2012-15 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *24 */25 26#ifndef __DAL_GPIO_INTERFACE_H__27#define __DAL_GPIO_INTERFACE_H__28 29#include "gpio_types.h"30#include "grph_object_defs.h"31 32struct gpio;33 34/* Open the handle for future use */35enum gpio_result dal_gpio_open(36 struct gpio *gpio,37 enum gpio_mode mode);38 39enum gpio_result dal_gpio_open_ex(40 struct gpio *gpio,41 enum gpio_mode mode);42 43/* Get high or low from the pin */44enum gpio_result dal_gpio_get_value(45 const struct gpio *gpio,46 uint32_t *value);47 48/* Set pin high or low */49enum gpio_result dal_gpio_set_value(50 const struct gpio *gpio,51 uint32_t value);52 53/* Get current mode */54enum gpio_mode dal_gpio_get_mode(55 const struct gpio *gpio);56 57/* Change mode of the handle */58enum gpio_result dal_gpio_change_mode(59 struct gpio *gpio,60 enum gpio_mode mode);61 62/* Lock Pin */63enum gpio_result dal_gpio_lock_pin(64 struct gpio *gpio);65 66/* Unlock Pin */67enum gpio_result dal_gpio_unlock_pin(68 struct gpio *gpio);69 70/* Get the GPIO id */71enum gpio_id dal_gpio_get_id(72 const struct gpio *gpio);73 74/* Get the GPIO enum */75uint32_t dal_gpio_get_enum(76 const struct gpio *gpio);77 78/* Set the GPIO pin configuration */79enum gpio_result dal_gpio_set_config(80 struct gpio *gpio,81 const struct gpio_config_data *config_data);82 83/* Obtain GPIO pin info */84enum gpio_result dal_gpio_get_pin_info(85 const struct gpio *gpio,86 struct gpio_pin_info *pin_info);87 88/* Obtain GPIO sync source */89enum sync_source dal_gpio_get_sync_source(90 const struct gpio *gpio);91 92/* Obtain GPIO pin output state (active low or active high) */93enum gpio_pin_output_state dal_gpio_get_output_state(94 const struct gpio *gpio);95 96struct hw_ddc *dal_gpio_get_ddc(struct gpio *gpio);97 98struct hw_hpd *dal_gpio_get_hpd(struct gpio *gpio);99 100struct hw_generic *dal_gpio_get_generic(struct gpio *gpio);101 102/* Close the handle */103void dal_gpio_close(104 struct gpio *gpio);105 106 107 108 109#endif110