gpio_types.h | Explore in Territory

/*
 * 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_TYPES_H__
#define __DAL_GPIO_TYPES_H__

#define BUNDLE_A_MASK …
#define BUNDLE_B_MASK …

/*
 * gpio_result
 *
 * @brief
 * The possible return codes that the GPIO object can return.
 * These return codes can be generated
 * directly by the GPIO object or from the GPIOPin object.
 */
enum gpio_result { … };

/*
 * @brief
 * Used to identify the specific GPIO device
 *
 * @notes
 * These constants are used as indices in a vector.
 * Thus they should start from zero and be contiguous.
 */
enum gpio_id { … };

#define GPIO_ENUM_UNKNOWN …

struct gpio_pin_info { … };

enum gpio_pin_output_state { … };

enum gpio_generic { … };

enum gpio_hpd { … };

enum gpio_gpio_pad { … };

enum gpio_vip_pad { … };

enum gpio_sync { … };

enum gpio_gsl { … };

/*
 * @brief
 * Unique Id for DDC handle.
 * Values are meaningful (used as indexes to array)
 */
enum gpio_ddc_line { … };

/*
 * @brief
 * Identifies the mode of operation to open a GPIO device.
 * A GPIO device (pin) can be programmed in only one of these modes at a time.
 */
enum gpio_mode { … };

/*
 * @brief
 * Identifies the source of the signal when GPIO is in HW mode.
 * get_signal_source() will return GPIO_SYGNAL_SOURCE__UNKNOWN
 * when one of the following holds:
 *    1. GPIO is input GPIO
 *    2. GPIO is not opened in HW mode
 *    3. GPIO does not have fixed signal source
 *    (like DC_GenericA have mux instead fixed)
 */
enum gpio_signal_source { … };

enum gpio_stereo_source { … };

/*
 * GPIO config
 */

enum gpio_config_type { … };

/* DDC configuration */

enum gpio_ddc_config_type { … };

struct gpio_ddc_config { … };

/* HPD configuration */

struct gpio_hpd_config { … };

struct gpio_generic_mux_config { … };

enum gpio_gsl_mux_config_type { … };

struct gpio_gsl_mux_config { … };

struct gpio_config_data { … };

#endif
linux/drivers/gpu/drm/amd/display/include/gpio_types.h
