mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_dma.c
- Revision:
- 156:95d6b41a828b
- Child:
- 180:96ed750bd169
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_dma.c Mon Jan 16 15:03:32 2017 +0000
@@ -0,0 +1,414 @@
+/**
+ ******************************************************************************
+ * @file stm32f0xx_ll_dma.c
+ * @author MCD Application Team
+ * @version V1.4.0
+ * @date 27-May-2016
+ * @brief DMA LL module driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_ll_dma.h"
+#include "stm32f0xx_ll_bus.h"
+#ifdef USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32F0xx_LL_Driver
+ * @{
+ */
+
+#if defined (DMA1) || defined (DMA2)
+
+/** @defgroup DMA_LL DMA
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/** @addtogroup DMA_LL_Private_Macros
+ * @{
+ */
+#define IS_LL_DMA_DIRECTION(__VALUE__) (((__VALUE__) == LL_DMA_DIRECTION_PERIPH_TO_MEMORY) || \
+ ((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_PERIPH) || \
+ ((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_MEMORY))
+
+#define IS_LL_DMA_MODE(__VALUE__) (((__VALUE__) == LL_DMA_MODE_NORMAL) || \
+ ((__VALUE__) == LL_DMA_MODE_CIRCULAR))
+
+#define IS_LL_DMA_PERIPHINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_PERIPH_INCREMENT) || \
+ ((__VALUE__) == LL_DMA_PERIPH_NOINCREMENT))
+
+#define IS_LL_DMA_MEMORYINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_MEMORY_INCREMENT) || \
+ ((__VALUE__) == LL_DMA_MEMORY_NOINCREMENT))
+
+#define IS_LL_DMA_PERIPHDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_PDATAALIGN_BYTE) || \
+ ((__VALUE__) == LL_DMA_PDATAALIGN_HALFWORD) || \
+ ((__VALUE__) == LL_DMA_PDATAALIGN_WORD))
+
+#define IS_LL_DMA_MEMORYDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_MDATAALIGN_BYTE) || \
+ ((__VALUE__) == LL_DMA_MDATAALIGN_HALFWORD) || \
+ ((__VALUE__) == LL_DMA_MDATAALIGN_WORD))
+
+#define IS_LL_DMA_NBDATA(__VALUE__) ((__VALUE__) <= (uint32_t)0x0000FFFFU)
+
+#if (defined(DMA1_CSELR_DEFAULT)||defined(DMA2_CSELR_DEFAULT))
+#define IS_LL_DMA_PERIPHREQUEST(__VALUE__) (((__VALUE__) == LL_DMA_REQUEST_0) || \
+ ((__VALUE__) == LL_DMA_REQUEST_1) || \
+ ((__VALUE__) == LL_DMA_REQUEST_2) || \
+ ((__VALUE__) == LL_DMA_REQUEST_3) || \
+ ((__VALUE__) == LL_DMA_REQUEST_4) || \
+ ((__VALUE__) == LL_DMA_REQUEST_5) || \
+ ((__VALUE__) == LL_DMA_REQUEST_6) || \
+ ((__VALUE__) == LL_DMA_REQUEST_7) || \
+ ((__VALUE__) == LL_DMA_REQUEST_8) || \
+ ((__VALUE__) == LL_DMA_REQUEST_9) || \
+ ((__VALUE__) == LL_DMA_REQUEST_10) || \
+ ((__VALUE__) == LL_DMA_REQUEST_11) || \
+ ((__VALUE__) == LL_DMA_REQUEST_12) || \
+ ((__VALUE__) == LL_DMA_REQUEST_13) || \
+ ((__VALUE__) == LL_DMA_REQUEST_14) || \
+ ((__VALUE__) == LL_DMA_REQUEST_15))
+#endif
+
+#define IS_LL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == LL_DMA_PRIORITY_LOW) || \
+ ((__VALUE__) == LL_DMA_PRIORITY_MEDIUM) || \
+ ((__VALUE__) == LL_DMA_PRIORITY_HIGH) || \
+ ((__VALUE__) == LL_DMA_PRIORITY_VERYHIGH))
+
+#if defined (DMA2)
+#if defined (DMA2_Channel6) && defined (DMA2_Channel7)
+#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_6) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_7))) || \
+ (((INSTANCE) == DMA2) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_6) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_7))))
+#else
+#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_6) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_7))) || \
+ (((INSTANCE) == DMA2) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5))))
+#endif
+#else
+#if defined(DMA1_Channel6) && defined(DMA1_Channel7)
+#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1)|| \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_6) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_7))))
+#elif defined (DMA1_Channel6)
+#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1)|| \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_6))))
+#else
+#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
+ (((CHANNEL) == LL_DMA_CHANNEL_1)|| \
+ ((CHANNEL) == LL_DMA_CHANNEL_2) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_3) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_4) || \
+ ((CHANNEL) == LL_DMA_CHANNEL_5))))
+#endif /* DMA1_Channel6 && DMA1_Channel7 */
+#endif
+/**
+ * @}
+ */
+
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup DMA_LL_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup DMA_LL_EF_Init
+ * @{
+ */
+
+/**
+ * @brief De-initialize the DMA registers to their default reset values.
+ * @param DMAx DMAx Instance
+ * @param Channel This parameter can be one of the following values:
+ * @arg @ref LL_DMA_CHANNEL_1
+ * @arg @ref LL_DMA_CHANNEL_2
+ * @arg @ref LL_DMA_CHANNEL_3
+ * @arg @ref LL_DMA_CHANNEL_4
+ * @arg @ref LL_DMA_CHANNEL_5
+ * @arg @ref LL_DMA_CHANNEL_6 (*)
+ * @arg @ref LL_DMA_CHANNEL_7 (*)
+ *
+ * (*) value not defined in all devices
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: DMA registers are de-initialized
+ * - ERROR: DMA registers are not de-initialized
+ */
+uint32_t LL_DMA_DeInit(DMA_TypeDef *DMAx, uint32_t Channel)
+{
+ DMA_Channel_TypeDef *tmp = (DMA_Channel_TypeDef *)DMA1_Channel1;
+ ErrorStatus status = SUCCESS;
+
+ /* Check the DMA Instance DMAx and Channel parameters*/
+ assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel));
+
+ tmp = (DMA_Channel_TypeDef *)(__LL_DMA_GET_CHANNEL_INSTANCE(DMAx, Channel));
+
+ /* Disable the selected DMAx_Channely */
+ CLEAR_BIT(tmp->CCR, DMA_CCR_EN);
+
+ /* Reset DMAx_Channely control register */
+ LL_DMA_WriteReg(tmp, CCR, 0U);
+
+ /* Reset DMAx_Channely remaining bytes register */
+ LL_DMA_WriteReg(tmp, CNDTR, 0U);
+
+ /* Reset DMAx_Channely peripheral address register */
+ LL_DMA_WriteReg(tmp, CPAR, 0U);
+
+ /* Reset DMAx_Channely memory address register */
+ LL_DMA_WriteReg(tmp, CMAR, 0U);
+
+#if (defined(DMA1_CSELR_DEFAULT)||defined(DMA2_CSELR_DEFAULT))
+ /* Reset Request register field for DMAx Channel */
+ LL_DMA_SetPeriphRequest(DMAx, Channel, LL_DMA_REQUEST_0);
+#endif
+
+ if (Channel == LL_DMA_CHANNEL_1)
+ {
+ /* Reset interrupt pending bits for DMAx Channel1 */
+ LL_DMA_ClearFlag_GI1(DMAx);
+ }
+ else if (Channel == LL_DMA_CHANNEL_2)
+ {
+ /* Reset interrupt pending bits for DMAx Channel2 */
+ LL_DMA_ClearFlag_GI2(DMAx);
+ }
+ else if (Channel == LL_DMA_CHANNEL_3)
+ {
+ /* Reset interrupt pending bits for DMAx Channel3 */
+ LL_DMA_ClearFlag_GI3(DMAx);
+ }
+ else if (Channel == LL_DMA_CHANNEL_4)
+ {
+ /* Reset interrupt pending bits for DMAx Channel4 */
+ LL_DMA_ClearFlag_GI4(DMAx);
+ }
+ else if (Channel == LL_DMA_CHANNEL_5)
+ {
+ /* Reset interrupt pending bits for DMAx Channel5 */
+ LL_DMA_ClearFlag_GI5(DMAx);
+ }
+
+#if defined(DMA1_Channel6)
+ else if (Channel == LL_DMA_CHANNEL_6)
+ {
+ /* Reset interrupt pending bits for DMAx Channel6 */
+ LL_DMA_ClearFlag_GI6(DMAx);
+ }
+#endif
+#if defined(DMA1_Channel7)
+ else if (Channel == LL_DMA_CHANNEL_7)
+ {
+ /* Reset interrupt pending bits for DMAx Channel7 */
+ LL_DMA_ClearFlag_GI7(DMAx);
+ }
+#endif
+ else
+ {
+ status = ERROR;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Initialize the DMA registers according to the specified parameters in DMA_InitStruct.
+ * @note To convert DMAx_Channely Instance to DMAx Instance and Channely, use helper macros :
+ * @arg @ref __LL_DMA_GET_INSTANCE
+ * @arg @ref __LL_DMA_GET_CHANNEL
+ * @param DMAx DMAx Instance
+ * @param Channel This parameter can be one of the following values:
+ * @arg @ref LL_DMA_CHANNEL_1
+ * @arg @ref LL_DMA_CHANNEL_2
+ * @arg @ref LL_DMA_CHANNEL_3
+ * @arg @ref LL_DMA_CHANNEL_4
+ * @arg @ref LL_DMA_CHANNEL_5
+ * @arg @ref LL_DMA_CHANNEL_6 (*)
+ * @arg @ref LL_DMA_CHANNEL_7 (*)
+ *
+ * (*) value not defined in all devices
+ * @param DMA_InitStruct pointer to a @ref LL_DMA_InitTypeDef structure.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: DMA registers are initialized
+ * - ERROR: Not applicable
+ */
+uint32_t LL_DMA_Init(DMA_TypeDef *DMAx, uint32_t Channel, LL_DMA_InitTypeDef *DMA_InitStruct)
+{
+ /* Check the DMA Instance DMAx and Channel parameters*/
+ assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel));
+
+ /* Check the DMA parameters from DMA_InitStruct */
+ assert_param(IS_LL_DMA_DIRECTION(DMA_InitStruct->Direction));
+ assert_param(IS_LL_DMA_MODE(DMA_InitStruct->Mode));
+ assert_param(IS_LL_DMA_PERIPHINCMODE(DMA_InitStruct->PeriphOrM2MSrcIncMode));
+ assert_param(IS_LL_DMA_MEMORYINCMODE(DMA_InitStruct->MemoryOrM2MDstIncMode));
+ assert_param(IS_LL_DMA_PERIPHDATASIZE(DMA_InitStruct->PeriphOrM2MSrcDataSize));
+ assert_param(IS_LL_DMA_MEMORYDATASIZE(DMA_InitStruct->MemoryOrM2MDstDataSize));
+ assert_param(IS_LL_DMA_NBDATA(DMA_InitStruct->NbData));
+#if (defined(DMA1_CSELR_DEFAULT)||defined(DMA2_CSELR_DEFAULT))
+ assert_param(IS_LL_DMA_PERIPHREQUEST(DMA_InitStruct->PeriphRequest));
+#endif
+ assert_param(IS_LL_DMA_PRIORITY(DMA_InitStruct->Priority));
+
+ /*---------------------------- DMAx CCR Configuration ------------------------
+ * Configure DMAx_Channely: data transfer direction, data transfer mode,
+ * peripheral and memory increment mode,
+ * data size alignment and priority level with parameters :
+ * - Direction: DMA_CCR_DIR and DMA_CCR_MEM2MEM bits
+ * - Mode: DMA_CCR_CIRC bit
+ * - PeriphOrM2MSrcIncMode: DMA_CCR_PINC bit
+ * - MemoryOrM2MDstIncMode: DMA_CCR_MINC bit
+ * - PeriphOrM2MSrcDataSize: DMA_CCR_PSIZE[1:0] bits
+ * - MemoryOrM2MDstDataSize: DMA_CCR_MSIZE[1:0] bits
+ * - Priority: DMA_CCR_PL[1:0] bits
+ */
+ LL_DMA_ConfigTransfer(DMAx, Channel, DMA_InitStruct->Direction | \
+ DMA_InitStruct->Mode | \
+ DMA_InitStruct->PeriphOrM2MSrcIncMode | \
+ DMA_InitStruct->MemoryOrM2MDstIncMode | \
+ DMA_InitStruct->PeriphOrM2MSrcDataSize | \
+ DMA_InitStruct->MemoryOrM2MDstDataSize | \
+ DMA_InitStruct->Priority);
+
+ /*-------------------------- DMAx CMAR Configuration -------------------------
+ * Configure the memory or destination base address with parameter :
+ * - MemoryOrM2MDstAddress: DMA_CMAR_MA[31:0] bits
+ */
+ LL_DMA_SetMemoryAddress(DMAx, Channel, DMA_InitStruct->MemoryOrM2MDstAddress);
+
+ /*-------------------------- DMAx CPAR Configuration -------------------------
+ * Configure the peripheral or source base address with parameter :
+ * - PeriphOrM2MSrcAddress: DMA_CPAR_PA[31:0] bits
+ */
+ LL_DMA_SetPeriphAddress(DMAx, Channel, DMA_InitStruct->PeriphOrM2MSrcAddress);
+
+ /*--------------------------- DMAx CNDTR Configuration -----------------------
+ * Configure the peripheral base address with parameter :
+ * - NbData: DMA_CNDTR_NDT[15:0] bits
+ */
+ LL_DMA_SetDataLength(DMAx, Channel, DMA_InitStruct->NbData);
+
+#if (defined(DMA1_CSELR_DEFAULT)||defined(DMA2_CSELR_DEFAULT))
+ /*--------------------------- DMAx CSELR Configuration -----------------------
+ * Configure the peripheral base address with parameter :
+ * - PeriphRequest: DMA_CSELR[31:0] bits
+ */
+ LL_DMA_SetPeriphRequest(DMAx, Channel, DMA_InitStruct->PeriphRequest);
+#endif
+
+ return SUCCESS;
+}
+
+/**
+ * @brief Set each @ref LL_DMA_InitTypeDef field to default value.
+ * @param DMA_InitStruct Pointer to a @ref LL_DMA_InitTypeDef structure.
+ * @retval None
+ */
+void LL_DMA_StructInit(LL_DMA_InitTypeDef *DMA_InitStruct)
+{
+ /* Set DMA_InitStruct fields to default values */
+ DMA_InitStruct->PeriphOrM2MSrcAddress = (uint32_t)0x00000000U;
+ DMA_InitStruct->MemoryOrM2MDstAddress = (uint32_t)0x00000000U;
+ DMA_InitStruct->Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
+ DMA_InitStruct->Mode = LL_DMA_MODE_NORMAL;
+ DMA_InitStruct->PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+ DMA_InitStruct->MemoryOrM2MDstIncMode = LL_DMA_MEMORY_NOINCREMENT;
+ DMA_InitStruct->PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_BYTE;
+ DMA_InitStruct->MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_BYTE;
+ DMA_InitStruct->NbData = (uint32_t)0x00000000U;
+#if (defined(DMA1_CSELR_DEFAULT)||defined(DMA2_CSELR_DEFAULT))
+ DMA_InitStruct->PeriphRequest = LL_DMA_REQUEST_0;
+#endif
+ DMA_InitStruct->Priority = LL_DMA_PRIORITY_LOW;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* DMA1 || DMA2 */
+
+/**
+ * @}
+ */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
