| Austin Schuh | 41baf20 | 2022-01-01 14:33:40 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * The MIT License (MIT) |
| 3 | * |
| 4 | * Copyright (c) 2019 Ha Thach (tinyusb.org) |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | * |
| 24 | * This file is part of the TinyUSB stack. |
| 25 | */ |
| 26 | |
| 27 | /** \ingroup Group_Common Common Files |
| 28 | * \defgroup Group_TimeoutTimer timeout timer |
| 29 | * @{ */ |
| 30 | |
| 31 | #ifndef _TUSB_TIMEOUT_H_ |
| 32 | #define _TUSB_TIMEOUT_H_ |
| 33 | |
| 34 | #include <stdbool.h> |
| 35 | #include <stdint.h> |
| 36 | |
| 37 | #ifdef __cplusplus |
| 38 | extern "C" { |
| 39 | #endif |
| 40 | |
| 41 | typedef struct { |
| 42 | uint32_t start; |
| 43 | uint32_t interval; |
| 44 | }tu_timeout_t; |
| 45 | |
| 46 | #if 0 |
| 47 | |
| 48 | extern uint32_t tusb_hal_millis(void); |
| 49 | |
| 50 | static inline void tu_timeout_set(tu_timeout_t* tt, uint32_t msec) |
| 51 | { |
| 52 | tt->interval = msec; |
| 53 | tt->start = tusb_hal_millis(); |
| 54 | } |
| 55 | |
| 56 | static inline bool tu_timeout_expired(tu_timeout_t* tt) |
| 57 | { |
| 58 | return ( tusb_hal_millis() - tt->start ) >= tt->interval; |
| 59 | } |
| 60 | |
| 61 | // For used with periodic event to prevent drift |
| 62 | static inline void tu_timeout_reset(tu_timeout_t* tt) |
| 63 | { |
| 64 | tt->start += tt->interval; |
| 65 | } |
| 66 | |
| 67 | static inline void tu_timeout_restart(tu_timeout_t* tt) |
| 68 | { |
| 69 | tt->start = tusb_hal_millis(); |
| 70 | } |
| 71 | |
| 72 | #endif |
| 73 | |
| 74 | #ifdef __cplusplus |
| 75 | } |
| 76 | #endif |
| 77 | |
| 78 | #endif /* _TUSB_TIMEOUT_H_ */ |
| 79 | |
| 80 | /** @} */ |