1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/**
* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* 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, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, 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. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS 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.
*
*/
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(WDT)
#include "nrf_drv_wdt.h"
#include "nrf_drv_common.h"
#include "nrf_error.h"
#include "nrf_assert.h"
#include "nrf_wdt.h"
#include "app_util_platform.h"
#include <stdbool.h>
#include <stdint.h>
#define NRF_LOG_MODULE_NAME "WDT"
#if WDT_CONFIG_LOG_ENABLED
#define NRF_LOG_LEVEL WDT_CONFIG_LOG_LEVEL
#define NRF_LOG_INFO_COLOR WDT_CONFIG_INFO_COLOR
#define NRF_LOG_DEBUG_COLOR WDT_CONFIG_DEBUG_COLOR
#else //WDT_CONFIG_LOG_ENABLED
#define NRF_LOG_LEVEL 0
#endif //WDT_CONFIG_LOG_ENABLED
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
/**@brief WDT event handler. */
static nrf_wdt_event_handler_t m_wdt_event_handler;
/**@brief WDT state. */
static nrf_drv_state_t m_state;
/**@brief WDT alloc table. */
static uint32_t m_alloc_index;
static const nrf_drv_wdt_config_t m_default_config = NRF_DRV_WDT_DEAFULT_CONFIG;
/**@brief WDT interrupt handler. */
void WDT_IRQHandler(void)
{
if (nrf_wdt_int_enable_check(NRF_WDT_INT_TIMEOUT_MASK) == true)
{
nrf_wdt_event_clear(NRF_WDT_EVENT_TIMEOUT);
m_wdt_event_handler();
}
}
ret_code_t nrf_drv_wdt_init(nrf_drv_wdt_config_t const * p_config,
nrf_wdt_event_handler_t wdt_event_handler)
{
ASSERT(wdt_event_handler != NULL);
ret_code_t err_code;
m_wdt_event_handler = wdt_event_handler;
if (m_state == NRF_DRV_STATE_UNINITIALIZED)
{
m_state = NRF_DRV_STATE_INITIALIZED;
}
else
{
err_code = NRF_ERROR_INVALID_STATE;
NRF_LOG_WARNING("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code));
return err_code;
}
if (p_config == NULL)
{
p_config = &m_default_config;
}
nrf_wdt_behaviour_set(p_config->behaviour);
nrf_wdt_reload_value_set((p_config->reload_value * 32768) / 1000);
nrf_drv_common_irq_enable(WDT_IRQn, p_config->interrupt_priority);
err_code = NRF_SUCCESS;
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code));
return err_code;
}
void nrf_drv_wdt_enable(void)
{
ASSERT(m_alloc_index != 0);
ASSERT(m_state == NRF_DRV_STATE_INITIALIZED);
nrf_wdt_int_enable(NRF_WDT_INT_TIMEOUT_MASK);
nrf_wdt_task_trigger(NRF_WDT_TASK_START);
m_state = NRF_DRV_STATE_POWERED_ON;
NRF_LOG_INFO("Enabled.\r\n");
}
void nrf_drv_wdt_feed(void)
{
ASSERT(m_state == NRF_DRV_STATE_POWERED_ON);
for (uint32_t i = 0; i < m_alloc_index; i++)
{
nrf_wdt_reload_request_set((nrf_wdt_rr_register_t)(NRF_WDT_RR0 + i));
}
}
ret_code_t nrf_drv_wdt_channel_alloc(nrf_drv_wdt_channel_id * p_channel_id)
{
ret_code_t result;
ASSERT(p_channel_id);
ASSERT(m_state == NRF_DRV_STATE_INITIALIZED);
CRITICAL_REGION_ENTER();
if (m_alloc_index < NRF_WDT_CHANNEL_NUMBER)
{
*p_channel_id = (nrf_drv_wdt_channel_id)(NRF_WDT_RR0 + m_alloc_index);
m_alloc_index++;
nrf_wdt_reload_request_enable(*p_channel_id);
result = NRF_SUCCESS;
}
else
{
result = NRF_ERROR_NO_MEM;
}
CRITICAL_REGION_EXIT();
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(result));
return result;
}
void nrf_drv_wdt_channel_feed(nrf_drv_wdt_channel_id channel_id)
{
ASSERT(m_state == NRF_DRV_STATE_POWERED_ON);
nrf_wdt_reload_request_set(channel_id);
}
#endif //NRF_MODULE_ENABLED(WDT)
|
