[HAL][SAI] HAL code quality enhancement for MISRA-C Rule-8.13 by adding const qualifiers

Inc/stm32l4xx_hal_sai.h

@@ -832,8 +832,8 @@ void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai);
   * @{
   */
 /* Peripheral State functions  ************************************************/
-HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai);
-uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai);
+HAL_SAI_StateTypeDef HAL_SAI_GetState(const SAI_HandleTypeDef *hsai);
+uint32_t HAL_SAI_GetError(const SAI_HandleTypeDef *hsai);
 /**
   * @}
   */

Inc/stm32l4xx_hal_sai_ex.h

@@ -72,7 +72,8 @@ typedef struct
 /** @addtogroup SAIEx_Exported_Functions_Group1 Peripheral Control functions
   * @{
   */
-HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(SAI_HandleTypeDef *hsai, SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay);
+HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(const SAI_HandleTypeDef *hsai,
+                                              const SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay);
 /**
   * @}
   */

Src/stm32l4xx_hal_sai.c

@@ -2159,7 +2159,7 @@ __weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
   *              the configuration information for SAI module.
   * @retval HAL state
   */
-HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
+HAL_SAI_StateTypeDef HAL_SAI_GetState(const SAI_HandleTypeDef *hsai)
 {
   return hsai->State;
 }
@@ -2170,7 +2170,7 @@ HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
   *              the configuration information for the specified SAI Block.
   * @retval SAI Error Code
   */
-uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai)
+uint32_t HAL_SAI_GetError(const SAI_HandleTypeDef *hsai)
 {
   return hsai->ErrorCode;
 }

Src/stm32l4xx_hal_sai_ex.c

@@ -75,7 +75,8 @@
   * @param  pdmMicDelay Microphone delays configuration.
   * @retval HAL status
   */
-HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(SAI_HandleTypeDef *hsai, SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay)
+HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(const SAI_HandleTypeDef *hsai,
+                                              const SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay)
 {
   HAL_StatusTypeDef status = HAL_OK;
   uint32_t offset;