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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_gpio.c @ 167:5e41365ff0d8 cleanup-1

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cleanup: local data and functions can be static (tMenu) Most of the changes in this commit are making code that is only used in this file (compilation unit) static. Careful reading the changes show a little more. Like, removing commented code (as any code change can be found the repository, so nothing is really lost), or removing obvious looking useless code (callerID). Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Fri, 08 Mar 2019 13:47:52 +0100
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_ll_gpio.c
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4 * @author MCD Application Team
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5 * @brief GPIO LL module driver.
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6 ******************************************************************************
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7 * @attention
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8 *
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9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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10 *
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11 * Redistribution and use in source and binary forms, with or without modification,
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12 * are permitted provided that the following conditions are met:
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13 * 1. Redistributions of source code must retain the above copyright notice,
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14 * this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 * this list of conditions and the following disclaimer in the documentation
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17 * and/or other materials provided with the distribution.
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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19 * may be used to endorse or promote products derived from this software
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20 * without specific prior written permission.
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21 *
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
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33 ******************************************************************************
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34 */
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35 #if defined(USE_FULL_LL_DRIVER)
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36
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37 /* Includes ------------------------------------------------------------------*/
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38 #include "stm32f4xx_ll_gpio.h"
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39 #include "stm32f4xx_ll_bus.h"
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40 #ifdef USE_FULL_ASSERT
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41 #include "stm32_assert.h"
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42 #else
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43 #define assert_param(expr) ((void)0U)
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44 #endif
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45
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46 /** @addtogroup STM32F4xx_LL_Driver
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47 * @{
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48 */
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49
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50 #if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK)
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51
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52 /** @addtogroup GPIO_LL
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53 * @{
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54 */
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55
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56 /* Private types -------------------------------------------------------------*/
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57 /* Private variables ---------------------------------------------------------*/
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58 /* Private constants ---------------------------------------------------------*/
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59 /* Private macros ------------------------------------------------------------*/
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60 /** @addtogroup GPIO_LL_Private_Macros
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61 * @{
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62 */
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63 #define IS_LL_GPIO_PIN(__VALUE__) (((0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))
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64
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65 #define IS_LL_GPIO_MODE(__VALUE__) (((__VALUE__) == LL_GPIO_MODE_INPUT) ||\
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66 ((__VALUE__) == LL_GPIO_MODE_OUTPUT) ||\
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67 ((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
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68 ((__VALUE__) == LL_GPIO_MODE_ANALOG))
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69
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70 #define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__) (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL) ||\
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71 ((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))
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72
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73 #define IS_LL_GPIO_SPEED(__VALUE__) (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW) ||\
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74 ((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM) ||\
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75 ((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH) ||\
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76 ((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))
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77
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78 #define IS_LL_GPIO_PULL(__VALUE__) (((__VALUE__) == LL_GPIO_PULL_NO) ||\
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79 ((__VALUE__) == LL_GPIO_PULL_UP) ||\
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80 ((__VALUE__) == LL_GPIO_PULL_DOWN))
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81
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82 #define IS_LL_GPIO_ALTERNATE(__VALUE__) (((__VALUE__) == LL_GPIO_AF_0 ) ||\
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83 ((__VALUE__) == LL_GPIO_AF_1 ) ||\
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84 ((__VALUE__) == LL_GPIO_AF_2 ) ||\
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85 ((__VALUE__) == LL_GPIO_AF_3 ) ||\
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86 ((__VALUE__) == LL_GPIO_AF_4 ) ||\
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87 ((__VALUE__) == LL_GPIO_AF_5 ) ||\
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88 ((__VALUE__) == LL_GPIO_AF_6 ) ||\
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89 ((__VALUE__) == LL_GPIO_AF_7 ) ||\
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90 ((__VALUE__) == LL_GPIO_AF_8 ) ||\
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91 ((__VALUE__) == LL_GPIO_AF_9 ) ||\
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92 ((__VALUE__) == LL_GPIO_AF_10 ) ||\
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93 ((__VALUE__) == LL_GPIO_AF_11 ) ||\
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94 ((__VALUE__) == LL_GPIO_AF_12 ) ||\
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95 ((__VALUE__) == LL_GPIO_AF_13 ) ||\
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96 ((__VALUE__) == LL_GPIO_AF_14 ) ||\
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97 ((__VALUE__) == LL_GPIO_AF_15 ))
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98 /**
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99 * @}
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100 */
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101
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102 /* Private function prototypes -----------------------------------------------*/
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103
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104 /* Exported functions --------------------------------------------------------*/
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105 /** @addtogroup GPIO_LL_Exported_Functions
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106 * @{
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107 */
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108
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109 /** @addtogroup GPIO_LL_EF_Init
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110 * @{
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111 */
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112
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113 /**
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114 * @brief De-initialize GPIO registers (Registers restored to their default values).
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115 * @param GPIOx GPIO Port
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116 * @retval An ErrorStatus enumeration value:
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117 * - SUCCESS: GPIO registers are de-initialized
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118 * - ERROR: Wrong GPIO Port
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119 */
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120 ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
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121 {
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122 ErrorStatus status = SUCCESS;
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123
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124 /* Check the parameters */
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125 assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
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126
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127 /* Force and Release reset on clock of GPIOx Port */
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128 if (GPIOx == GPIOA)
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129 {
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130 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOA);
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131 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOA);
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132 }
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133 else if (GPIOx == GPIOB)
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134 {
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135 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOB);
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136 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOB);
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137 }
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138 else if (GPIOx == GPIOC)
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139 {
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140 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOC);
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141 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOC);
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142 }
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143 #if defined(GPIOD)
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144 else if (GPIOx == GPIOD)
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145 {
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146 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOD);
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147 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOD);
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148 }
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149 #endif /* GPIOD */
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150 #if defined(GPIOE)
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151 else if (GPIOx == GPIOE)
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152 {
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153 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOE);
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154 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOE);
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155 }
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156 #endif /* GPIOE */
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157 #if defined(GPIOF)
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158 else if (GPIOx == GPIOF)
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159 {
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160 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOF);
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161 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOF);
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162 }
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163 #endif /* GPIOF */
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164 #if defined(GPIOG)
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165 else if (GPIOx == GPIOG)
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166 {
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167 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOG);
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168 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOG);
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169 }
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170 #endif /* GPIOG */
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171 #if defined(GPIOH)
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172 else if (GPIOx == GPIOH)
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173 {
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174 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOH);
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175 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOH);
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176 }
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177 #endif /* GPIOH */
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178 #if defined(GPIOI)
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179 else if (GPIOx == GPIOI)
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180 {
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181 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOI);
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182 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOI);
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183 }
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184 #endif /* GPIOI */
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185 #if defined(GPIOJ)
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186 else if (GPIOx == GPIOJ)
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187 {
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188 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
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189 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
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190 }
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191 #endif /* GPIOJ */
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192 #if defined(GPIOK)
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193 else if (GPIOx == GPIOK)
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194 {
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195 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOK);
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196 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOK);
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197 }
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198 #endif /* GPIOK */
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199 else
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200 {
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201 status = ERROR;
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202 }
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203
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204 return (status);
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205 }
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206
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207 /**
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208 * @brief Initialize GPIO registers according to the specified parameters in GPIO_InitStruct.
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209 * @param GPIOx GPIO Port
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210 * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
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211 * that contains the configuration information for the specified GPIO peripheral.
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212 * @retval An ErrorStatus enumeration value:
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213 * - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
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214 * - ERROR: Not applicable
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215 */
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216 ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
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217 {
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218 uint32_t pinpos = 0x00000000U;
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219 uint32_t currentpin = 0x00000000U;
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220
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221 /* Check the parameters */
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222 assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
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223 assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
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224 assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
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225 assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));
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226
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227 /* ------------------------- Configure the port pins ---------------- */
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228 /* Initialize pinpos on first pin set */
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229 pinpos = POSITION_VAL(GPIO_InitStruct->Pin);
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230
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231 /* Configure the port pins */
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232 while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
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233 {
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234 /* Get current io position */
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235 currentpin = (GPIO_InitStruct->Pin) & (0x00000001U << pinpos);
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236
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237 if (currentpin)
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238 {
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239 /* Pin Mode configuration */
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240 LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
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241
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242 if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
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243 {
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244 /* Check Speed mode parameters */
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245 assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));
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246
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247 /* Speed mode configuration */
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248 LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
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249 }
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250
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251 /* Pull-up Pull down resistor configuration*/
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252 LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);
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253
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254 if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
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255 {
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256 /* Check Alternate parameter */
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257 assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));
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258
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259 /* Speed mode configuration */
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260 if (POSITION_VAL(currentpin) < 0x00000008U)
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261 {
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262 LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
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263 }
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264 else
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265 {
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266 LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
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267 }
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268 }
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269 }
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270 pinpos++;
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271 }
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272
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273 if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
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274 {
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275 /* Check Output mode parameters */
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276 assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));
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277
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278 /* Output mode configuration*/
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279 LL_GPIO_SetPinOutputType(GPIOx, GPIO_InitStruct->Pin, GPIO_InitStruct->OutputType);
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280
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281 }
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282 return (SUCCESS);
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283 }
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284
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285 /**
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286 * @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
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287 * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
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288 * whose fields will be set to default values.
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289 * @retval None
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290 */
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291
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292 void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
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293 {
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294 /* Reset GPIO init structure parameters values */
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295 GPIO_InitStruct->Pin = LL_GPIO_PIN_ALL;
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296 GPIO_InitStruct->Mode = LL_GPIO_MODE_ANALOG;
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297 GPIO_InitStruct->Speed = LL_GPIO_SPEED_FREQ_LOW;
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298 GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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299 GPIO_InitStruct->Pull = LL_GPIO_PULL_NO;
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300 GPIO_InitStruct->Alternate = LL_GPIO_AF_0;
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301 }
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302
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303 /**
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304 * @}
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305 */
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306
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307 /**
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308 * @}
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309 */
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310
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311 /**
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312 * @}
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313 */
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314
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315 #endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK) */
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316
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317 /**
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318 * @}
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319 */
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320
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321 #endif /* USE_FULL_LL_DRIVER */
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322
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323 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/