cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

gpio_interface.h (2983B)

      1/*
      2 * Copyright 2012-15 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * 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 OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: AMD
     23 *
     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#endif