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comparison Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_rng.c @ 160:e3ca52b8e7fa

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Merge with FlipDisplay
author heinrichsweikamp
date Thu, 07 Mar 2019 15:06:43 +0100
parents c78bcbd5deda
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80:cc2bb7bb8456 160:e3ca52b8e7fa
1 /**
2 ******************************************************************************
3 * @file stm32f4xx_ll_rng.c
4 * @author MCD Application Team
5 * @brief RNG LL module driver.
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
10 *
11 * Redistribution and use in source and binary forms, with or without modification,
12 * are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 ******************************************************************************
34 */
35 #if defined(USE_FULL_LL_DRIVER)
36
37 /* Includes ------------------------------------------------------------------*/
38 #include "stm32f4xx_ll_rng.h"
39 #include "stm32f4xx_ll_bus.h"
40
41 #ifdef USE_FULL_ASSERT
42 #include "stm32_assert.h"
43 #else
44 #define assert_param(expr) ((void)0U)
45 #endif
46
47 /** @addtogroup STM32F4xx_LL_Driver
48 * @{
49 */
50
51 #if defined (RNG)
52
53 /** @addtogroup RNG_LL
54 * @{
55 */
56
57 /* Private types -------------------------------------------------------------*/
58 /* Private variables ---------------------------------------------------------*/
59 /* Private constants ---------------------------------------------------------*/
60 /* Private macros ------------------------------------------------------------*/
61 /* Private function prototypes -----------------------------------------------*/
62
63 /* Exported functions --------------------------------------------------------*/
64 /** @addtogroup RNG_LL_Exported_Functions
65 * @{
66 */
67
68 /** @addtogroup RNG_LL_EF_Init
69 * @{
70 */
71
72 /**
73 * @brief De-initialize RNG registers (Registers restored to their default values).
74 * @param RNGx RNG Instance
75 * @retval An ErrorStatus enumeration value:
76 * - SUCCESS: RNG registers are de-initialized
77 * - ERROR: not applicable
78 */
79 ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
80 {
81 /* Check the parameters */
82 assert_param(IS_RNG_ALL_INSTANCE(RNGx));
83
84 #if !defined (RCC_AHB2_SUPPORT)
85 /* Enable RNG reset state */
86 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_RNG);
87
88 /* Release RNG from reset state */
89 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_RNG);
90 #else
91 /* Enable RNG reset state */
92 LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
93
94 /* Release RNG from reset state */
95 LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
96 #endif
97
98 return (SUCCESS);
99 }
100
101 /**
102 * @}
103 */
104
105 /**
106 * @}
107 */
108
109 /**
110 * @}
111 */
112
113 #endif /* defined (RNG) */
114
115 /**
116 * @}
117 */
118
119 #endif /* USE_FULL_LL_DRIVER */
120
121 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
122