1 /**
2 * \file
3 *
4 * \brief HAL delay related functionality implementation.
5 *
6 * Copyright (C) 2014-2016 Atmel Corporation. All rights reserved.
7 *
8 * \asf_license_start
9 *
10 * \page License
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright notice,
16 * this list of conditions and the following disclaimer.
17 *
18 * 2. Redistributions in binary form must reproduce the above copyright notice,
19 * this list of conditions and the following disclaimer in the documentation
20 * and/or other materials provided with the distribution.
21 *
22 * 3. The name of Atmel may not be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * 4. This software may only be redistributed and used in connection with an
26 * Atmel microcontroller product.
27 *
28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 *
40 * \asf_license_stop
41 *
42 */
43
44 #include <hpl_irq.h>
45 #include <hpl_reset.h>
46 #include <hpl_sleep.h>
47 #include "hal_delay.h"
48 #include <hpl_delay.h>
49
50 /**
51 * \brief Driver version
52 */
53 #define DRIVER_VERSION 0x00000001u
54
55 /**
56 * \brief The pointer to a hardware instance used by the driver.
57 */
58 static void *hardware;
59
60 /**
61 * \brief Initialize Delay driver
62 */
delay_init(void * const hw)63 void delay_init(void *const hw)
64 {
65 _delay_init(hardware = hw);
66 }
67
68 /**
69 * \brief Perform delay in us
70 */
delay_us(const uint16_t us)71 void delay_us(const uint16_t us)
72 {
73 _delay_cycles(hardware, _get_cycles_for_us(us));
74 }
75
76 /**
77 * \brief Perform delay in ms
78 */
delay_ms(const uint16_t ms)79 void delay_ms(const uint16_t ms)
80 {
81 _delay_cycles(hardware, _get_cycles_for_ms(ms));
82 }
83
84 /**
85 * \brief Retrieve the current driver version
86 */
delay_get_version(void)87 uint32_t delay_get_version(void)
88 {
89 return DRIVER_VERSION;
90 }
91
