1 /******************************************************************************
2 *
3 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by
4 * Analog Devices, Inc.),
5 * Copyright (C) 2023-2024 Analog Devices, Inc.
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 ******************************************************************************/
20
21 /* **** Includes **** */
22 #include "mxc_device.h"
23 #include "mxc_errors.h"
24 #include "mxc_assert.h"
25 #include "mxc_sys.h"
26 #include "wdt.h"
27 #include "wdt_revb.h"
28
29 /* **** Functions **** */
30
MXC_WDT_Init(mxc_wdt_regs_t * wdt,mxc_wdt_cfg_t * cfg)31 int MXC_WDT_Init(mxc_wdt_regs_t *wdt, mxc_wdt_cfg_t *cfg)
32 {
33 #ifndef MSDK_NO_GPIO_CLK_INIT
34 if (wdt == MXC_WDT) {
35 MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_WDT);
36 } else {
37 return E_BAD_PARAM;
38 }
39 #endif
40
41 MXC_WDT_RevB_Init((mxc_wdt_revb_regs_t *)wdt, (mxc_wdt_revb_cfg_t *)cfg);
42
43 return E_NO_ERROR;
44 }
45
MXC_WDT_Shutdown(mxc_wdt_regs_t * wdt)46 int MXC_WDT_Shutdown(mxc_wdt_regs_t *wdt)
47 {
48 if (wdt == MXC_WDT) {
49 MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_WDT);
50 } else {
51 return E_BAD_PARAM;
52 }
53
54 return E_NO_ERROR;
55 }
56
MXC_WDT_SetIntPeriod(mxc_wdt_regs_t * wdt,mxc_wdt_cfg_t * cfg)57 void MXC_WDT_SetIntPeriod(mxc_wdt_regs_t *wdt, mxc_wdt_cfg_t *cfg)
58 {
59 MXC_WDT_RevB_SetIntPeriod((mxc_wdt_revb_regs_t *)wdt, (mxc_wdt_revb_cfg_t *)cfg);
60 }
61
MXC_WDT_SetResetPeriod(mxc_wdt_regs_t * wdt,mxc_wdt_cfg_t * cfg)62 void MXC_WDT_SetResetPeriod(mxc_wdt_regs_t *wdt, mxc_wdt_cfg_t *cfg)
63 {
64 MXC_WDT_RevB_SetResetPeriod((mxc_wdt_revb_regs_t *)wdt, (mxc_wdt_revb_cfg_t *)cfg);
65 }
66
MXC_WDT_Enable(mxc_wdt_regs_t * wdt)67 void MXC_WDT_Enable(mxc_wdt_regs_t *wdt)
68 {
69 // ME12 requires the special sequence below
70 // to set the MXC_F_WDT_CTRL_EN bit. The
71 // bit cannot be set directly.
72 __disable_irq();
73 wdt->rst = 0xFE;
74 wdt->rst = 0XED;
75 __enable_irq();
76 }
77
MXC_WDT_Disable(mxc_wdt_regs_t * wdt)78 void MXC_WDT_Disable(mxc_wdt_regs_t *wdt)
79 {
80 // ME12 requires the special sequence below
81 // to unset the MXC_F_WDT_CTRL_EN bit. The
82 // bit cannot be unset directly.
83 __disable_irq();
84 wdt->rst = 0xDE;
85 wdt->rst = 0XAD;
86 __enable_irq();
87 }
88
MXC_WDT_EnableInt(mxc_wdt_regs_t * wdt)89 void MXC_WDT_EnableInt(mxc_wdt_regs_t *wdt)
90 {
91 MXC_WDT_RevB_EnableInt((mxc_wdt_revb_regs_t *)wdt, MXC_WDT_REVB_ENABLE);
92 }
93
MXC_WDT_DisableInt(mxc_wdt_regs_t * wdt)94 void MXC_WDT_DisableInt(mxc_wdt_regs_t *wdt)
95 {
96 MXC_WDT_RevB_EnableInt((mxc_wdt_revb_regs_t *)wdt, MXC_WDT_REVB_DISABLE);
97 }
98
MXC_WDT_EnableReset(mxc_wdt_regs_t * wdt)99 void MXC_WDT_EnableReset(mxc_wdt_regs_t *wdt)
100 {
101 MXC_WDT_RevB_EnableReset((mxc_wdt_revb_regs_t *)wdt, MXC_WDT_REVB_ENABLE);
102 }
103
MXC_WDT_DisableReset(mxc_wdt_regs_t * wdt)104 void MXC_WDT_DisableReset(mxc_wdt_regs_t *wdt)
105 {
106 MXC_WDT_RevB_EnableReset((mxc_wdt_revb_regs_t *)wdt, MXC_WDT_REVB_DISABLE);
107 }
108
MXC_WDT_ResetTimer(mxc_wdt_regs_t * wdt)109 void MXC_WDT_ResetTimer(mxc_wdt_regs_t *wdt)
110 {
111 __disable_irq();
112 MXC_WDT_RevB_ResetTimer((mxc_wdt_revb_regs_t *)wdt);
113 __enable_irq();
114 }
115
MXC_WDT_GetResetFlag(mxc_wdt_regs_t * wdt)116 int MXC_WDT_GetResetFlag(mxc_wdt_regs_t *wdt)
117 {
118 return MXC_WDT_RevB_GetResetFlag((mxc_wdt_revb_regs_t *)wdt);
119 }
120
MXC_WDT_ClearResetFlag(mxc_wdt_regs_t * wdt)121 void MXC_WDT_ClearResetFlag(mxc_wdt_regs_t *wdt)
122 {
123 MXC_WDT_RevB_ClearResetFlag((mxc_wdt_revb_regs_t *)wdt);
124 }
125
MXC_WDT_GetIntFlag(mxc_wdt_regs_t * wdt)126 int MXC_WDT_GetIntFlag(mxc_wdt_regs_t *wdt)
127 {
128 return MXC_WDT_RevB_GetIntFlag((mxc_wdt_revb_regs_t *)wdt);
129 }
130
MXC_WDT_ClearIntFlag(mxc_wdt_regs_t * wdt)131 void MXC_WDT_ClearIntFlag(mxc_wdt_regs_t *wdt)
132 {
133 MXC_WDT_RevB_ClearIntFlag((mxc_wdt_revb_regs_t *)wdt);
134 }
135
MXC_WDT_SetClockSource(mxc_wdt_regs_t * wdt,mxc_wdt_clock_t clock_source)136 int MXC_WDT_SetClockSource(mxc_wdt_regs_t *wdt, mxc_wdt_clock_t clock_source)
137 {
138 MXC_WDT_RevB_SetClockSource((mxc_wdt_revb_regs_t *)wdt, (int)clock_source);
139
140 return E_NO_ERROR;
141 }
142
