| /* |
| * Copyright (c) 2022 Arm Limited. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU licence. |
| * |
| * This program is distributed in the hope that 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| * SPDX-License-Identifier: GPL-2.0-only |
| */ |
| |
| #ifndef ETHOSU_WATCHDOG_H |
| #define ETHOSU_WATCHDOG_H |
| |
| /**************************************************************************** |
| * Includes |
| ****************************************************************************/ |
| |
| #include <linux/types.h> |
| #include <linux/timer.h> |
| #include <linux/workqueue.h> |
| |
| /**************************************************************************** |
| * Types |
| ****************************************************************************/ |
| |
| struct device; |
| struct ethosu_watchdog; |
| |
| typedef void (*ethosu_watchdog_cb)(struct ethosu_watchdog *wdog); |
| |
| struct ethosu_watchdog { |
| struct device *dev; |
| ethosu_watchdog_cb callback; |
| struct timer_list timer; |
| struct work_struct work; |
| atomic_t refcount; |
| }; |
| |
| /**************************************************************************** |
| * Functions |
| ****************************************************************************/ |
| |
| /** |
| * ethosu_watchdog_init() - Initialize watchdog |
| * |
| * Return: 0 on success, else error code. |
| */ |
| int ethosu_watchdog_init(struct ethosu_watchdog *wdog, |
| struct device *dev, |
| ethosu_watchdog_cb callback); |
| |
| /** |
| * ethosu_watchdog_deinit() - Deinitialize watchdog |
| */ |
| void ethosu_watchdog_deinit(struct ethosu_watchdog *wdog); |
| |
| /** |
| * ethosu_watchdog_reset() - Reset watchdog |
| */ |
| int ethosu_watchdog_reset(struct ethosu_watchdog *wdog); |
| |
| /** |
| * ethosu_watchdog_inc() - Increment reference count |
| */ |
| void ethosu_watchdog_inc(struct ethosu_watchdog *wdog); |
| |
| /** |
| * ethosu_watchdog_dec() - Decrement reference count |
| */ |
| void ethosu_watchdog_dec(struct ethosu_watchdog *wdog); |
| |
| #endif /* ETHOSU_WATCHDOG_H */ |