diff options
author | Harald Welte <laforge@gnumonks.org> | 2018-05-07 19:59:35 +0200 |
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committer | Harald Welte <laforge@gnumonks.org> | 2018-05-07 19:59:35 +0200 |
commit | 3634cc8e5d3124e3cf6cf46c0f1d5385ff511426 (patch) | |
tree | 1af66e339e767fc62d588766fd8d3b26edd29e3b /common2/services/delay/delay.h |
initial check-in of ASF 3.39.0
Diffstat (limited to 'common2/services/delay/delay.h')
-rw-r--r-- | common2/services/delay/delay.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/common2/services/delay/delay.h b/common2/services/delay/delay.h new file mode 100644 index 00000000..9326e2b3 --- /dev/null +++ b/common2/services/delay/delay.h @@ -0,0 +1,101 @@ +/** + * \file + * + * \brief Common Delay Service + * + * Copyright (c) 2013-2016 Atmel Corporation. All rights reserved. + * + * \asf_license_start + * + * \page License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an + * Atmel microcontroller product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * \asf_license_stop + * + */ +/* + * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> + */ +#ifndef DELAY_H_INCLUDED +#define DELAY_H_INCLUDED + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup group_common_services_delay Busy-Wait Delay Routines + * + * This module provides simple loop-based delay routines for those + * applications requiring a brief wait during execution. Common for + * API ver. 2. + * + * @{ + */ + +#ifdef SYSTICK_MODE +#include "sam0/systick_counter.h" +#endif +#ifdef CYCLE_MODE +#include "sam0/cycle_counter.h" +#endif + +void delay_init(void); + +/** + * \def delay_s + * \brief Delay in at least specified number of seconds. + * \param delay Delay in seconds + */ +#define delay_s(delay) ((delay) ? cpu_delay_s(delay) : cpu_delay_us(1)) + +/** + * \def delay_ms + * \brief Delay in at least specified number of milliseconds. + * \param delay Delay in milliseconds + */ +#define delay_ms(delay) ((delay) ? cpu_delay_ms(delay) : cpu_delay_us(1)) + +/** + * \def delay_us + * \brief Delay in at least specified number of microseconds. + * \param delay Delay in microseconds + */ +#define delay_us(delay) ((delay) ? cpu_delay_us(delay) : cpu_delay_us(1)) + +#ifdef __cplusplus +} +#endif + +/** + * @} + */ + +#endif /* DELAY_H_INCLUDED */ |