diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_ll_swpmi.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_ll_swpmi.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_ll_swpmi.c b/bsps/arm/stm32h7/hal/stm32h7xx_ll_swpmi.c new file mode 100644 index 0000000000..58b0cbc3c8 --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_ll_swpmi.c @@ -0,0 +1,179 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_ll_swpmi.c
+ * @author MCD Application Team
+ * @brief SWPMI LL module driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_ll_swpmi.h"
+#include "stm32h7xx_ll_bus.h"
+#ifdef USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32H7xx_LL_Driver
+ * @{
+ */
+
+
+/** @addtogroup SWPMI_LL
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/** @addtogroup SWPMI_LL_Private_Macros
+ * @{
+ */
+
+#define IS_LL_SWPMI_BITRATE_VALUE(__VALUE__) (((__VALUE__) <= 255U))
+
+#define IS_LL_SWPMI_SW_BUFFER_RX(__VALUE__) (((__VALUE__) == LL_SWPMI_SW_BUFFER_RX_SINGLE) \
+ || ((__VALUE__) == LL_SWPMI_SW_BUFFER_RX_MULTI))
+
+#define IS_LL_SWPMI_SW_BUFFER_TX(__VALUE__) (((__VALUE__) == LL_SWPMI_SW_BUFFER_TX_SINGLE) \
+ || ((__VALUE__) == LL_SWPMI_SW_BUFFER_TX_MULTI))
+
+#define IS_LL_SWPMI_VOLTAGE_CLASS(__VALUE__) (((__VALUE__) == LL_SWPMI_VOLTAGE_CLASS_C) \
+ || ((__VALUE__) == LL_SWPMI_VOLTAGE_CLASS_B))
+
+/**
+ * @}
+ */
+
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup SWPMI_LL_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup SWPMI_LL_EF_Init
+ * @{
+ */
+
+/**
+ * @brief De-initialize the SWPMI peripheral registers to their default reset values.
+ * @param SWPMIx SWPMI Instance
+ * @retval An ErrorStatus enumeration value
+ * - SUCCESS: SWPMI registers are de-initialized
+ * - ERROR: Not applicable
+ */
+ErrorStatus LL_SWPMI_DeInit(SWPMI_TypeDef *SWPMIx)
+{
+ ErrorStatus status = SUCCESS;
+
+ /* Check the parameter */
+ assert_param(IS_SWPMI_INSTANCE(SWPMIx));
+
+ if (SWPMIx == SWPMI1)
+ {
+ LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_SWPMI1);
+ LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_SWPMI1);
+ }
+ else
+ {
+ status = ERROR;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Initialize the SWPMI peripheral according to the specified parameters in the SWPMI_InitStruct.
+ * @note As some bits in SWPMI configuration registers can only be written when the SWPMI is deactivated (SWPMI_CR_SWPACT bit = 0),
+ * SWPMI IP should be in deactivated state prior calling this function. Otherwise, ERROR result will be returned.
+ * @param SWPMIx SWPMI Instance
+ * @param SWPMI_InitStruct pointer to a @ref LL_SWPMI_InitTypeDef structure that contains
+ * the configuration information for the SWPMI peripheral.
+ * @retval An ErrorStatus enumeration value
+ * - SUCCESS: SWPMI registers are initialized
+ * - ERROR: SWPMI registers are not initialized
+ */
+ErrorStatus LL_SWPMI_Init(SWPMI_TypeDef *SWPMIx, LL_SWPMI_InitTypeDef *SWPMI_InitStruct)
+{
+ ErrorStatus status = SUCCESS;
+
+ /* Check the parameters */
+ assert_param(IS_SWPMI_INSTANCE(SWPMIx));
+ assert_param(IS_LL_SWPMI_BITRATE_VALUE(SWPMI_InitStruct->BitRatePrescaler));
+ assert_param(IS_LL_SWPMI_SW_BUFFER_TX(SWPMI_InitStruct->TxBufferingMode));
+ assert_param(IS_LL_SWPMI_SW_BUFFER_RX(SWPMI_InitStruct->RxBufferingMode));
+ assert_param(IS_LL_SWPMI_VOLTAGE_CLASS(SWPMI_InitStruct->VoltageClass));
+
+ /* SWPMI needs to be in deactivated state, in order to be able to configure some bits */
+ if (LL_SWPMI_IsActivated(SWPMIx) == 0U)
+ {
+ /* Configure the BRR register (Bitrate) */
+ LL_SWPMI_SetBitRatePrescaler(SWPMIx, SWPMI_InitStruct->BitRatePrescaler);
+
+ /* Configure the voltage class */
+ LL_SWPMI_SetVoltageClass(SWPMIx, SWPMI_InitStruct->VoltageClass);
+
+ /* Set the new configuration of the SWPMI peripheral */
+ MODIFY_REG(SWPMIx->CR,
+ (SWPMI_CR_RXMODE | SWPMI_CR_TXMODE),
+ (SWPMI_InitStruct->TxBufferingMode | SWPMI_InitStruct->RxBufferingMode));
+ }
+ /* Else (SWPMI not in deactivated state => return ERROR) */
+ else
+ {
+ status = ERROR;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Set each @ref LL_SWPMI_InitTypeDef field to default value.
+ * @param SWPMI_InitStruct pointer to a @ref LL_SWPMI_InitTypeDef structure that contains
+ * the configuration information for the SWPMI peripheral.
+ * @retval None
+ */
+void LL_SWPMI_StructInit(LL_SWPMI_InitTypeDef *SWPMI_InitStruct)
+{
+ /* Set SWPMI_InitStruct fields to default values */
+ SWPMI_InitStruct->VoltageClass = LL_SWPMI_VOLTAGE_CLASS_C;
+ SWPMI_InitStruct->BitRatePrescaler = (uint32_t)0x00000001;
+ SWPMI_InitStruct->TxBufferingMode = LL_SWPMI_SW_BUFFER_TX_SINGLE;
+ SWPMI_InitStruct->RxBufferingMode = LL_SWPMI_SW_BUFFER_RX_SINGLE;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+
+/**
+ * @}
+ */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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