blob: a3f51d3ae9a3aebd95c2e9be56d43b82220c6530 (
plain) (
blame)
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
|
/**
******************************************************************************
* @file stm32h7xx_ll_rng.c
* @author MCD Application Team
* @brief RNG LL module driver.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_ll_rng.h"
#include "stm32h7xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
/** @addtogroup STM32H7xx_LL_Driver
* @{
*/
#if defined (RNG)
/** @addtogroup RNG_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup RNG_LL_Private_Macros RNG Private Macros
* @{
*/
#define IS_LL_RNG_CED(__MODE__) (((__MODE__) == LL_RNG_CED_ENABLE) || \
((__MODE__) == LL_RNG_CED_DISABLE))
#if defined(RNG_CR_CONDRST)
#define IS_LL_RNG_CLOCK_DIVIDER(__CLOCK_DIV__) ((__CLOCK_DIV__) <=0x0Fu)
#define IS_LL_RNG_NIST_COMPLIANCE(__NIST_COMPLIANCE__) (((__NIST_COMPLIANCE__) == LL_RNG_NIST_COMPLIANT) || \
((__NIST_COMPLIANCE__) == LL_RNG_NOTNIST_COMPLIANT))
#define IS_LL_RNG_CONFIG1 (__CONFIG1__) ((__CONFIG1__) <= 0x3FUL)
#define IS_LL_RNG_CONFIG2 (__CONFIG2__) ((__CONFIG2__) <= 0x07UL)
#define IS_LL_RNG_CONFIG3 (__CONFIG3__) ((__CONFIG3__) <= 0xFUL)
#endif /* RNG_CR_CONDRST*/
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup RNG_LL_Exported_Functions
* @{
*/
/** @addtogroup RNG_LL_EF_Init
* @{
*/
/**
* @brief De-initialize RNG registers (Registers restored to their default values).
* @param RNGx RNG Instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: RNG registers are de-initialized
* - ERROR: not applicable
*/
ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_RNG_ALL_INSTANCE(RNGx));
if (RNGx == RNG)
{
/* Enable RNG reset state */
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
/* Release RNG from reset state */
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
}
else
{
status = ERROR;
}
return status;
}
/**
* @brief Initialize RNG registers according to the specified parameters in RNG_InitStruct.
* @param RNGx RNG Instance
* @param RNG_InitStruct pointer to a LL_RNG_InitTypeDef structure
* that contains the configuration information for the specified RNG peripheral.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: RNG registers are initialized according to RNG_InitStruct content
* - ERROR: not applicable
*/
ErrorStatus LL_RNG_Init(RNG_TypeDef *RNGx, LL_RNG_InitTypeDef *RNG_InitStruct)
{
/* Check the parameters */
assert_param(IS_RNG_ALL_INSTANCE(RNGx));
assert_param(IS_LL_RNG_CED(RNG_InitStruct->ClockErrorDetection));
#if defined(RNG_CR_CONDRST)
/* Clock Error Detection Configuration when CONDRT bit is set to 1 */
MODIFY_REG(RNGx->CR, RNG_CR_CED | RNG_CR_CONDRST, RNG_InitStruct->ClockErrorDetection | RNG_CR_CONDRST);
/* Writing bits CONDRST=0*/
CLEAR_BIT(RNGx->CR, RNG_CR_CONDRST);
#else
/* Clock Error Detection configuration */
MODIFY_REG(RNGx->CR, RNG_CR_CED, RNG_InitStruct->ClockErrorDetection);
#endif /* RNG_CR_CONDRST */
return (SUCCESS);
}
/**
* @brief Set each @ref LL_RNG_InitTypeDef field to default value.
* @param RNG_InitStruct pointer to a @ref LL_RNG_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_RNG_StructInit(LL_RNG_InitTypeDef *RNG_InitStruct)
{
/* Set RNG_InitStruct fields to default values */
RNG_InitStruct->ClockErrorDetection = LL_RNG_CED_ENABLE;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* RNG */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
|
