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Diffstat (limited to 'tinyusb/src/common/tusb_timeout.h')
-rwxr-xr-x | tinyusb/src/common/tusb_timeout.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/tinyusb/src/common/tusb_timeout.h b/tinyusb/src/common/tusb_timeout.h new file mode 100755 index 00000000..ce53955f --- /dev/null +++ b/tinyusb/src/common/tusb_timeout.h @@ -0,0 +1,80 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * 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 + * AUTHORS OR COPYRIGHT HOLDERS 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. + * + * This file is part of the TinyUSB stack. + */ + +/** \ingroup Group_Common Common Files + * \defgroup Group_TimeoutTimer timeout timer + * @{ */ + +#ifndef _TUSB_TIMEOUT_H_ +#define _TUSB_TIMEOUT_H_ + +#include <stdbool.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct { + uint32_t start; + uint32_t interval; +}tu_timeout_t; + +#if 0 + +extern uint32_t tusb_hal_millis(void); + +static inline void tu_timeout_set(tu_timeout_t* tt, uint32_t msec) +{ + tt->interval = msec; + tt->start = tusb_hal_millis(); +} + +static inline bool tu_timeout_expired(tu_timeout_t* tt) +{ + return ( tusb_hal_millis() - tt->start ) >= tt->interval; +} + +// For used with periodic event to prevent drift +static inline void tu_timeout_reset(tu_timeout_t* tt) +{ + tt->start += tt->interval; +} + +static inline void tu_timeout_restart(tu_timeout_t* tt) +{ + tt->start = tusb_hal_millis(); +} + +#endif + +#ifdef __cplusplus + } +#endif + +#endif /* _TUSB_TIMEOUT_H_ */ + +/** @} */ |