62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __UAPI_TEGRA_GTE_H
|
||
|
|
#define __UAPI_TEGRA_GTE_H
|
||
|
|
|
||
|
|
#include <linux/ioctl.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* GPIO event types
|
||
|
|
*/
|
||
|
|
#define TEGRA_GTE_EVENT_RISING_EDGE 0x1
|
||
|
|
#define TEGRA_GTE_EVENT_FALLING_EDGE 0x2
|
||
|
|
#define TEGRA_GTE_EVENT_REQ_BOTH_EDGES (TEGRA_GTE_EVENT_RISING_EDGE | \
|
||
|
|
TEGRA_GTE_EVENT_FALLING_EDGE)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Information about a GPIO event request
|
||
|
|
* @global_gpio_pin: global gpio pin number to monitor event
|
||
|
|
* @eventflags: desired flags for the desired GPIO event line, such as
|
||
|
|
* EVENT_RISING_EDGE or EVENT_FALLING_EDGE
|
||
|
|
* @fd: if successful this field will contain a valid anonymous file handle
|
||
|
|
* after a HTS_CREATE_GPIO_EVENT_IOCTL operation, zero or negative value
|
||
|
|
* means error
|
||
|
|
*/
|
||
|
|
struct tegra_gte_hts_event_req {
|
||
|
|
__u32 global_gpio_pin;
|
||
|
|
__u32 eventflags;
|
||
|
|
int fd;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct hts_event_data - event data
|
||
|
|
* @timestamp: hardware timestamp in nanosecond
|
||
|
|
* @dir: direction of the event
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct tegra_gte_hts_event_data {
|
||
|
|
__u64 timestamp;
|
||
|
|
int dir;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Event request IOCTL command
|
||
|
|
*/
|
||
|
|
#define TEGRA_GTE_HTS_CREATE_GPIO_EV_IOCTL \
|
||
|
|
_IOWR(0xB5, 0x0, \
|
||
|
|
struct tegra_gte_hts_event_req)
|
||
|
|
|
||
|
|
#endif
|