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targets/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_ll_dma.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:: AnnaBridge
Date:: Wed Feb 20 22:31:08 2019 +0000
Revision:: 189:f392fc9709a3
Parent:: 186:707f6e361f3e

mbed library release version 165

Who changed what in which revision?

User	Revision	Line number	New contents of line
Kojto	158:b23ee177fd68	1	/**
Kojto	158:b23ee177fd68	2	******************************************************************************
Kojto	158:b23ee177fd68	3	* @file stm32l0xx_ll_dma.c
Kojto	158:b23ee177fd68	4	* @author MCD Application Team
Kojto	158:b23ee177fd68	5	* @brief DMA LL module driver.
Kojto	158:b23ee177fd68	6	******************************************************************************
Kojto	158:b23ee177fd68	7	* @attention
Kojto	158:b23ee177fd68	8	*
Kojto	158:b23ee177fd68	9	* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
Kojto	158:b23ee177fd68	10	*
Kojto	158:b23ee177fd68	11	* Redistribution and use in source and binary forms, with or without modification,
Kojto	158:b23ee177fd68	12	* are permitted provided that the following conditions are met:
Kojto	158:b23ee177fd68	13	* 1. Redistributions of source code must retain the above copyright notice,
Kojto	158:b23ee177fd68	14	* this list of conditions and the following disclaimer.
Kojto	158:b23ee177fd68	15	* 2. Redistributions in binary form must reproduce the above copyright notice,
Kojto	158:b23ee177fd68	16	* this list of conditions and the following disclaimer in the documentation
Kojto	158:b23ee177fd68	17	* and/or other materials provided with the distribution.
Kojto	158:b23ee177fd68	18	* 3. Neither the name of STMicroelectronics nor the names of its contributors
Kojto	158:b23ee177fd68	19	* may be used to endorse or promote products derived from this software
Kojto	158:b23ee177fd68	20	* without specific prior written permission.
Kojto	158:b23ee177fd68	21	*
Kojto	158:b23ee177fd68	22	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Kojto	158:b23ee177fd68	23	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Kojto	158:b23ee177fd68	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Kojto	158:b23ee177fd68	25	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Kojto	158:b23ee177fd68	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Kojto	158:b23ee177fd68	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Kojto	158:b23ee177fd68	28	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Kojto	158:b23ee177fd68	29	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Kojto	158:b23ee177fd68	30	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Kojto	158:b23ee177fd68	31	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Kojto	158:b23ee177fd68	32	*
Kojto	158:b23ee177fd68	33	******************************************************************************
Kojto	158:b23ee177fd68	34	*/
Kojto	158:b23ee177fd68	35	#if defined(USE_FULL_LL_DRIVER)
Kojto	158:b23ee177fd68	36
Kojto	158:b23ee177fd68	37	/* Includes ------------------------------------------------------------------*/
Kojto	158:b23ee177fd68	38	#include "stm32l0xx_ll_dma.h"
Kojto	158:b23ee177fd68	39	#include "stm32l0xx_ll_bus.h"
Kojto	158:b23ee177fd68	40	#ifdef USE_FULL_ASSERT
Kojto	158:b23ee177fd68	41	#include "stm32_assert.h"
Kojto	158:b23ee177fd68	42	#else
Kojto	158:b23ee177fd68	43	#define assert_param(expr) ((void)0U)
Kojto	158:b23ee177fd68	44	#endif
Kojto	158:b23ee177fd68	45
Kojto	158:b23ee177fd68	46	/** @addtogroup STM32L0xx_LL_Driver
Kojto	158:b23ee177fd68	47	* @{
Kojto	158:b23ee177fd68	48	*/
Kojto	158:b23ee177fd68	49
Kojto	158:b23ee177fd68	50	#if defined (DMA1)
Kojto	158:b23ee177fd68	51
Kojto	158:b23ee177fd68	52	/** @defgroup DMA_LL DMA
Kojto	158:b23ee177fd68	53	* @{
Kojto	158:b23ee177fd68	54	*/
Kojto	158:b23ee177fd68	55
Kojto	158:b23ee177fd68	56	/* Private types -------------------------------------------------------------*/
Kojto	158:b23ee177fd68	57	/* Private variables ---------------------------------------------------------*/
Kojto	158:b23ee177fd68	58	/* Private constants ---------------------------------------------------------*/
Kojto	158:b23ee177fd68	59	/* Private macros ------------------------------------------------------------*/
Kojto	158:b23ee177fd68	60	/** @addtogroup DMA_LL_Private_Macros
Kojto	158:b23ee177fd68	61	* @{
Kojto	158:b23ee177fd68	62	*/
Kojto	158:b23ee177fd68	63	#define IS_LL_DMA_DIRECTION(__VALUE__) (((__VALUE__) == LL_DMA_DIRECTION_PERIPH_TO_MEMORY) \|\| \
Kojto	158:b23ee177fd68	64	((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_PERIPH) \|\| \
Kojto	158:b23ee177fd68	65	((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_MEMORY))
Kojto	158:b23ee177fd68	66
Kojto	158:b23ee177fd68	67	#define IS_LL_DMA_MODE(__VALUE__) (((__VALUE__) == LL_DMA_MODE_NORMAL) \|\| \
Kojto	158:b23ee177fd68	68	((__VALUE__) == LL_DMA_MODE_CIRCULAR))
Kojto	158:b23ee177fd68	69
Kojto	158:b23ee177fd68	70	#define IS_LL_DMA_PERIPHINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_PERIPH_INCREMENT) \|\| \
Kojto	158:b23ee177fd68	71	((__VALUE__) == LL_DMA_PERIPH_NOINCREMENT))
Kojto	158:b23ee177fd68	72
Kojto	158:b23ee177fd68	73	#define IS_LL_DMA_MEMORYINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_MEMORY_INCREMENT) \|\| \
Kojto	158:b23ee177fd68	74	((__VALUE__) == LL_DMA_MEMORY_NOINCREMENT))
Kojto	158:b23ee177fd68	75
Kojto	158:b23ee177fd68	76	#define IS_LL_DMA_PERIPHDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_PDATAALIGN_BYTE) \|\| \
Kojto	158:b23ee177fd68	77	((__VALUE__) == LL_DMA_PDATAALIGN_HALFWORD) \|\| \
Kojto	158:b23ee177fd68	78	((__VALUE__) == LL_DMA_PDATAALIGN_WORD))
Kojto	158:b23ee177fd68	79
Kojto	158:b23ee177fd68	80	#define IS_LL_DMA_MEMORYDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_MDATAALIGN_BYTE) \|\| \
Kojto	158:b23ee177fd68	81	((__VALUE__) == LL_DMA_MDATAALIGN_HALFWORD) \|\| \
Kojto	158:b23ee177fd68	82	((__VALUE__) == LL_DMA_MDATAALIGN_WORD))
Kojto	158:b23ee177fd68	83
Kojto	158:b23ee177fd68	84	#define IS_LL_DMA_NBDATA(__VALUE__) ((__VALUE__) <= (uint32_t)0x0000FFFFU)
Kojto	158:b23ee177fd68	85
Kojto	158:b23ee177fd68	86	#define IS_LL_DMA_PERIPHREQUEST(__VALUE__) (((__VALUE__) == LL_DMA_REQUEST_0) \|\| \
Kojto	158:b23ee177fd68	87	((__VALUE__) == LL_DMA_REQUEST_1) \|\| \
Kojto	158:b23ee177fd68	88	((__VALUE__) == LL_DMA_REQUEST_2) \|\| \
Kojto	158:b23ee177fd68	89	((__VALUE__) == LL_DMA_REQUEST_3) \|\| \
Kojto	158:b23ee177fd68	90	((__VALUE__) == LL_DMA_REQUEST_4) \|\| \
Kojto	158:b23ee177fd68	91	((__VALUE__) == LL_DMA_REQUEST_5) \|\| \
Kojto	158:b23ee177fd68	92	((__VALUE__) == LL_DMA_REQUEST_6) \|\| \
Kojto	158:b23ee177fd68	93	((__VALUE__) == LL_DMA_REQUEST_7) \|\| \
Kojto	158:b23ee177fd68	94	((__VALUE__) == LL_DMA_REQUEST_8) \|\| \
Kojto	158:b23ee177fd68	95	((__VALUE__) == LL_DMA_REQUEST_9) \|\| \
Kojto	158:b23ee177fd68	96	((__VALUE__) == LL_DMA_REQUEST_10) \|\| \
Kojto	158:b23ee177fd68	97	((__VALUE__) == LL_DMA_REQUEST_11) \|\| \
Kojto	158:b23ee177fd68	98	((__VALUE__) == LL_DMA_REQUEST_12) \|\| \
Kojto	158:b23ee177fd68	99	((__VALUE__) == LL_DMA_REQUEST_13) \|\| \
Kojto	158:b23ee177fd68	100	((__VALUE__) == LL_DMA_REQUEST_14) \|\| \
Kojto	158:b23ee177fd68	101	((__VALUE__) == LL_DMA_REQUEST_15))
Kojto	158:b23ee177fd68	102
Kojto	158:b23ee177fd68	103	#define IS_LL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == LL_DMA_PRIORITY_LOW) \|\| \
Kojto	158:b23ee177fd68	104	((__VALUE__) == LL_DMA_PRIORITY_MEDIUM) \|\| \
Kojto	158:b23ee177fd68	105	((__VALUE__) == LL_DMA_PRIORITY_HIGH) \|\| \
Kojto	158:b23ee177fd68	106	((__VALUE__) == LL_DMA_PRIORITY_VERYHIGH))
Kojto	158:b23ee177fd68	107
Kojto	158:b23ee177fd68	108	#if defined (DMA1_Channel6) && defined (DMA1_Channel7)
Kojto	158:b23ee177fd68	109	#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
Kojto	158:b23ee177fd68	110	(((CHANNEL) == LL_DMA_CHANNEL_1)\|\| \
Kojto	158:b23ee177fd68	111	((CHANNEL) == LL_DMA_CHANNEL_2) \|\| \
Kojto	158:b23ee177fd68	112	((CHANNEL) == LL_DMA_CHANNEL_3) \|\| \
Kojto	158:b23ee177fd68	113	((CHANNEL) == LL_DMA_CHANNEL_4) \|\| \
Kojto	158:b23ee177fd68	114	((CHANNEL) == LL_DMA_CHANNEL_5) \|\| \
Kojto	158:b23ee177fd68	115	((CHANNEL) == LL_DMA_CHANNEL_6) \|\| \
Kojto	158:b23ee177fd68	116	((CHANNEL) == LL_DMA_CHANNEL_7))))
Kojto	158:b23ee177fd68	117	#elif defined (DMA1_Channel6)
Kojto	158:b23ee177fd68	118	#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
Kojto	158:b23ee177fd68	119	(((CHANNEL) == LL_DMA_CHANNEL_1)\|\| \
Kojto	158:b23ee177fd68	120	((CHANNEL) == LL_DMA_CHANNEL_2) \|\| \
Kojto	158:b23ee177fd68	121	((CHANNEL) == LL_DMA_CHANNEL_3) \|\| \
Kojto	158:b23ee177fd68	122	((CHANNEL) == LL_DMA_CHANNEL_4) \|\| \
Kojto	158:b23ee177fd68	123	((CHANNEL) == LL_DMA_CHANNEL_5) \|\| \
Kojto	158:b23ee177fd68	124	((CHANNEL) == LL_DMA_CHANNEL_6))))
Kojto	158:b23ee177fd68	125	#else
Kojto	158:b23ee177fd68	126	#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
Kojto	158:b23ee177fd68	127	(((CHANNEL) == LL_DMA_CHANNEL_1)\|\| \
Kojto	158:b23ee177fd68	128	((CHANNEL) == LL_DMA_CHANNEL_2) \|\| \
Kojto	158:b23ee177fd68	129	((CHANNEL) == LL_DMA_CHANNEL_3) \|\| \
Kojto	158:b23ee177fd68	130	((CHANNEL) == LL_DMA_CHANNEL_4) \|\| \
Kojto	158:b23ee177fd68	131	((CHANNEL) == LL_DMA_CHANNEL_5))))
Kojto	158:b23ee177fd68	132	#endif /* DMA1_Channel6 && DMA1_Channel7 */
Kojto	158:b23ee177fd68	133	/**
Kojto	158:b23ee177fd68	134	* @}
Kojto	158:b23ee177fd68	135	*/
Kojto	158:b23ee177fd68	136
Kojto	158:b23ee177fd68	137	/* Private function prototypes -----------------------------------------------*/
Kojto	158:b23ee177fd68	138
Kojto	158:b23ee177fd68	139	/* Exported functions --------------------------------------------------------*/
Kojto	158:b23ee177fd68	140	/** @addtogroup DMA_LL_Exported_Functions
Kojto	158:b23ee177fd68	141	* @{
Kojto	158:b23ee177fd68	142	*/
Kojto	158:b23ee177fd68	143
Kojto	158:b23ee177fd68	144	/** @addtogroup DMA_LL_EF_Init
Kojto	158:b23ee177fd68	145	* @{
Kojto	158:b23ee177fd68	146	*/
Kojto	158:b23ee177fd68	147
Kojto	158:b23ee177fd68	148	/**
Kojto	158:b23ee177fd68	149	* @brief De-initialize the DMA registers to their default reset values.
Kojto	158:b23ee177fd68	150	* @param DMAx DMAx Instance
Kojto	158:b23ee177fd68	151	* @param Channel This parameter can be one of the following values:
Kojto	158:b23ee177fd68	152	* @arg @ref LL_DMA_CHANNEL_1
Kojto	158:b23ee177fd68	153	* @arg @ref LL_DMA_CHANNEL_2
Kojto	158:b23ee177fd68	154	* @arg @ref LL_DMA_CHANNEL_3
Kojto	158:b23ee177fd68	155	* @arg @ref LL_DMA_CHANNEL_4
Kojto	158:b23ee177fd68	156	* @arg @ref LL_DMA_CHANNEL_5
Kojto	158:b23ee177fd68	157	* @arg @ref LL_DMA_CHANNEL_6 (*)
Kojto	158:b23ee177fd68	158	* @arg @ref LL_DMA_CHANNEL_7 (*)
Kojto	158:b23ee177fd68	159	* @arg @ref LL_DMA_CHANNEL_ALL
Kojto	158:b23ee177fd68	160	*
Kojto	158:b23ee177fd68	161	* (*) value not defined in all devices
Kojto	158:b23ee177fd68	162	* @retval An ErrorStatus enumeration value:
Kojto	158:b23ee177fd68	163	* - SUCCESS: DMA registers are de-initialized
Kojto	158:b23ee177fd68	164	* - ERROR: DMA registers are not de-initialized
Kojto	158:b23ee177fd68	165	*/
Kojto	158:b23ee177fd68	166	uint32_t LL_DMA_DeInit(DMA_TypeDef *DMAx, uint32_t Channel)
Kojto	158:b23ee177fd68	167	{
Kojto	158:b23ee177fd68	168	DMA_Channel_TypeDef tmp = (DMA_Channel_TypeDef )DMA1_Channel1;
Kojto	158:b23ee177fd68	169	ErrorStatus status = SUCCESS;
Kojto	158:b23ee177fd68	170
Kojto	158:b23ee177fd68	171	/* Check the DMA Instance DMAx and Channel parameters*/
Kojto	158:b23ee177fd68	172	assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel) \|\| (Channel == LL_DMA_CHANNEL_ALL));
Kojto	158:b23ee177fd68	173
Kojto	158:b23ee177fd68	174	if (Channel == LL_DMA_CHANNEL_ALL)
Kojto	158:b23ee177fd68	175	{
Kojto	158:b23ee177fd68	176	if (DMAx == DMA1)
Kojto	158:b23ee177fd68	177	{
Kojto	158:b23ee177fd68	178	/* Force reset of DMA clock */
Kojto	158:b23ee177fd68	179	LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA1);
Kojto	158:b23ee177fd68	180
Kojto	158:b23ee177fd68	181	/* Release reset of DMA clock */
Kojto	158:b23ee177fd68	182	LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA1);
Kojto	158:b23ee177fd68	183	}
Kojto	158:b23ee177fd68	184	#if defined(DMA2)
Kojto	158:b23ee177fd68	185	else if (DMAx == DMA2)
Kojto	158:b23ee177fd68	186	{
Kojto	158:b23ee177fd68	187	/* Force reset of DMA clock */
Kojto	158:b23ee177fd68	188	LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA2);
Kojto	158:b23ee177fd68	189
Kojto	158:b23ee177fd68	190	/* Release reset of DMA clock */
Kojto	158:b23ee177fd68	191	LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA2);
Kojto	158:b23ee177fd68	192	}
Kojto	158:b23ee177fd68	193	#endif
Kojto	158:b23ee177fd68	194	else
Kojto	158:b23ee177fd68	195	{
Kojto	158:b23ee177fd68	196	status = ERROR;
Kojto	158:b23ee177fd68	197	}
Kojto	158:b23ee177fd68	198	}
Kojto	158:b23ee177fd68	199	else
Kojto	158:b23ee177fd68	200	{
Kojto	158:b23ee177fd68	201	tmp = (DMA_Channel_TypeDef *)(__LL_DMA_GET_CHANNEL_INSTANCE(DMAx, Channel));
Kojto	158:b23ee177fd68	202
Kojto	158:b23ee177fd68	203	/* Disable the selected DMAx_Channely */
Kojto	158:b23ee177fd68	204	CLEAR_BIT(tmp->CCR, DMA_CCR_EN);
Kojto	158:b23ee177fd68	205
Kojto	158:b23ee177fd68	206	/* Reset DMAx_Channely control register */
Kojto	158:b23ee177fd68	207	LL_DMA_WriteReg(tmp, CCR, 0U);
Kojto	158:b23ee177fd68	208
Kojto	158:b23ee177fd68	209	/* Reset DMAx_Channely remaining bytes register */
Kojto	158:b23ee177fd68	210	LL_DMA_WriteReg(tmp, CNDTR, 0U);
Kojto	158:b23ee177fd68	211
Kojto	158:b23ee177fd68	212	/* Reset DMAx_Channely peripheral address register */
Kojto	158:b23ee177fd68	213	LL_DMA_WriteReg(tmp, CPAR, 0U);
Kojto	158:b23ee177fd68	214
Kojto	158:b23ee177fd68	215	/* Reset DMAx_Channely memory address register */
Kojto	158:b23ee177fd68	216	LL_DMA_WriteReg(tmp, CMAR, 0U);
Kojto	158:b23ee177fd68	217
Kojto	158:b23ee177fd68	218	/* Reset Request register field for DMAx Channel */
Kojto	158:b23ee177fd68	219	LL_DMA_SetPeriphRequest(DMAx, Channel, LL_DMA_REQUEST_0);
Kojto	158:b23ee177fd68	220
Kojto	158:b23ee177fd68	221	if (Channel == LL_DMA_CHANNEL_1)
Kojto	158:b23ee177fd68	222	{
Kojto	158:b23ee177fd68	223	/* Reset interrupt pending bits for DMAx Channel1 */
Kojto	158:b23ee177fd68	224	LL_DMA_ClearFlag_GI1(DMAx);
Kojto	158:b23ee177fd68	225	}
Kojto	158:b23ee177fd68	226	else if (Channel == LL_DMA_CHANNEL_2)
Kojto	158:b23ee177fd68	227	{
Kojto	158:b23ee177fd68	228	/* Reset interrupt pending bits for DMAx Channel2 */
Kojto	158:b23ee177fd68	229	LL_DMA_ClearFlag_GI2(DMAx);
Kojto	158:b23ee177fd68	230	}
Kojto	158:b23ee177fd68	231	else if (Channel == LL_DMA_CHANNEL_3)
Kojto	158:b23ee177fd68	232	{
Kojto	158:b23ee177fd68	233	/* Reset interrupt pending bits for DMAx Channel3 */
Kojto	158:b23ee177fd68	234	LL_DMA_ClearFlag_GI3(DMAx);
Kojto	158:b23ee177fd68	235	}
Kojto	158:b23ee177fd68	236	else if (Channel == LL_DMA_CHANNEL_4)
Kojto	158:b23ee177fd68	237	{
Kojto	158:b23ee177fd68	238	/* Reset interrupt pending bits for DMAx Channel4 */
Kojto	158:b23ee177fd68	239	LL_DMA_ClearFlag_GI4(DMAx);
Kojto	158:b23ee177fd68	240	}
Kojto	158:b23ee177fd68	241	else if (Channel == LL_DMA_CHANNEL_5)
Kojto	158:b23ee177fd68	242	{
Kojto	158:b23ee177fd68	243	/* Reset interrupt pending bits for DMAx Channel5 */
Kojto	158:b23ee177fd68	244	LL_DMA_ClearFlag_GI5(DMAx);
Kojto	158:b23ee177fd68	245	}
Kojto	158:b23ee177fd68	246
Kojto	158:b23ee177fd68	247	#if defined(DMA1_Channel6)
Kojto	158:b23ee177fd68	248	else if (Channel == LL_DMA_CHANNEL_6)
Kojto	158:b23ee177fd68	249	{
Kojto	158:b23ee177fd68	250	/* Reset interrupt pending bits for DMAx Channel6 */
Kojto	158:b23ee177fd68	251	LL_DMA_ClearFlag_GI6(DMAx);
Kojto	158:b23ee177fd68	252	}
Kojto	158:b23ee177fd68	253	#endif
Kojto	158:b23ee177fd68	254	#if defined(DMA1_Channel7)
Kojto	158:b23ee177fd68	255	else if (Channel == LL_DMA_CHANNEL_7)
Kojto	158:b23ee177fd68	256	{
Kojto	158:b23ee177fd68	257	/* Reset interrupt pending bits for DMAx Channel7 */
Kojto	158:b23ee177fd68	258	LL_DMA_ClearFlag_GI7(DMAx);
Kojto	158:b23ee177fd68	259	}
Kojto	158:b23ee177fd68	260	#endif
Kojto	158:b23ee177fd68	261	else
Kojto	158:b23ee177fd68	262	{
Kojto	158:b23ee177fd68	263	status = ERROR;
Kojto	158:b23ee177fd68	264	}
Kojto	158:b23ee177fd68	265	}
Kojto	158:b23ee177fd68	266
Kojto	158:b23ee177fd68	267	return status;
Kojto	158:b23ee177fd68	268	}
Kojto	158:b23ee177fd68	269
Kojto	158:b23ee177fd68	270	/**
Kojto	158:b23ee177fd68	271	* @brief Initialize the DMA registers according to the specified parameters in DMA_InitStruct.
Kojto	158:b23ee177fd68	272	* @note To convert DMAx_Channely Instance to DMAx Instance and Channely, use helper macros :
Kojto	158:b23ee177fd68	273	* @arg @ref __LL_DMA_GET_INSTANCE
Kojto	158:b23ee177fd68	274	* @arg @ref __LL_DMA_GET_CHANNEL
Kojto	158:b23ee177fd68	275	* @param DMAx DMAx Instance
Kojto	158:b23ee177fd68	276	* @param Channel This parameter can be one of the following values:
Kojto	158:b23ee177fd68	277	* @arg @ref LL_DMA_CHANNEL_1
Kojto	158:b23ee177fd68	278	* @arg @ref LL_DMA_CHANNEL_2
Kojto	158:b23ee177fd68	279	* @arg @ref LL_DMA_CHANNEL_3
Kojto	158:b23ee177fd68	280	* @arg @ref LL_DMA_CHANNEL_4
Kojto	158:b23ee177fd68	281	* @arg @ref LL_DMA_CHANNEL_5
Kojto	158:b23ee177fd68	282	* @arg @ref LL_DMA_CHANNEL_6 (*)
Kojto	158:b23ee177fd68	283	* @arg @ref LL_DMA_CHANNEL_7 (*)
Kojto	158:b23ee177fd68	284	*
Kojto	158:b23ee177fd68	285	* (*) value not defined in all devices
Kojto	158:b23ee177fd68	286	* @param DMA_InitStruct pointer to a @ref LL_DMA_InitTypeDef structure.
Kojto	158:b23ee177fd68	287	* @retval An ErrorStatus enumeration value:
Kojto	158:b23ee177fd68	288	* - SUCCESS: DMA registers are initialized
Kojto	158:b23ee177fd68	289	* - ERROR: Not applicable
Kojto	158:b23ee177fd68	290	*/
Kojto	158:b23ee177fd68	291	uint32_t LL_DMA_Init(DMA_TypeDef DMAx, uint32_t Channel, LL_DMA_InitTypeDef DMA_InitStruct)
Kojto	158:b23ee177fd68	292	{
Kojto	158:b23ee177fd68	293	/* Check the DMA Instance DMAx and Channel parameters*/
Kojto	158:b23ee177fd68	294	assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel));
Kojto	158:b23ee177fd68	295
Kojto	158:b23ee177fd68	296	/* Check the DMA parameters from DMA_InitStruct */
Kojto	158:b23ee177fd68	297	assert_param(IS_LL_DMA_DIRECTION(DMA_InitStruct->Direction));
Kojto	158:b23ee177fd68	298	assert_param(IS_LL_DMA_MODE(DMA_InitStruct->Mode));
Kojto	158:b23ee177fd68	299	assert_param(IS_LL_DMA_PERIPHINCMODE(DMA_InitStruct->PeriphOrM2MSrcIncMode));
Kojto	158:b23ee177fd68	300	assert_param(IS_LL_DMA_MEMORYINCMODE(DMA_InitStruct->MemoryOrM2MDstIncMode));
Kojto	158:b23ee177fd68	301	assert_param(IS_LL_DMA_PERIPHDATASIZE(DMA_InitStruct->PeriphOrM2MSrcDataSize));
Kojto	158:b23ee177fd68	302	assert_param(IS_LL_DMA_MEMORYDATASIZE(DMA_InitStruct->MemoryOrM2MDstDataSize));
Kojto	158:b23ee177fd68	303	assert_param(IS_LL_DMA_NBDATA(DMA_InitStruct->NbData));
Kojto	158:b23ee177fd68	304	assert_param(IS_LL_DMA_PERIPHREQUEST(DMA_InitStruct->PeriphRequest));
Kojto	158:b23ee177fd68	305	assert_param(IS_LL_DMA_PRIORITY(DMA_InitStruct->Priority));
Kojto	158:b23ee177fd68	306
Kojto	158:b23ee177fd68	307	/*---------------------------- DMAx CCR Configuration ------------------------
Kojto	158:b23ee177fd68	308	* Configure DMAx_Channely: data transfer direction, data transfer mode,
Kojto	158:b23ee177fd68	309	* peripheral and memory increment mode,
Kojto	158:b23ee177fd68	310	* data size alignment and priority level with parameters :
Kojto	158:b23ee177fd68	311	* - Direction: DMA_CCR_DIR and DMA_CCR_MEM2MEM bits
Kojto	158:b23ee177fd68	312	* - Mode: DMA_CCR_CIRC bit
Kojto	158:b23ee177fd68	313	* - PeriphOrM2MSrcIncMode: DMA_CCR_PINC bit
Kojto	158:b23ee177fd68	314	* - MemoryOrM2MDstIncMode: DMA_CCR_MINC bit
Kojto	158:b23ee177fd68	315	* - PeriphOrM2MSrcDataSize: DMA_CCR_PSIZE[1:0] bits
Kojto	158:b23ee177fd68	316	* - MemoryOrM2MDstDataSize: DMA_CCR_MSIZE[1:0] bits
Kojto	158:b23ee177fd68	317	* - Priority: DMA_CCR_PL[1:0] bits
Kojto	158:b23ee177fd68	318	*/
Kojto	158:b23ee177fd68	319	LL_DMA_ConfigTransfer(DMAx, Channel, DMA_InitStruct->Direction \| \
Kojto	158:b23ee177fd68	320	DMA_InitStruct->Mode \| \
Kojto	158:b23ee177fd68	321	DMA_InitStruct->PeriphOrM2MSrcIncMode \| \
Kojto	158:b23ee177fd68	322	DMA_InitStruct->MemoryOrM2MDstIncMode \| \
Kojto	158:b23ee177fd68	323	DMA_InitStruct->PeriphOrM2MSrcDataSize \| \
Kojto	158:b23ee177fd68	324	DMA_InitStruct->MemoryOrM2MDstDataSize \| \
Kojto	158:b23ee177fd68	325	DMA_InitStruct->Priority);
Kojto	158:b23ee177fd68	326
Kojto	158:b23ee177fd68	327	/*-------------------------- DMAx CMAR Configuration -------------------------
Kojto	158:b23ee177fd68	328	* Configure the memory or destination base address with parameter :
Kojto	158:b23ee177fd68	329	* - MemoryOrM2MDstAddress: DMA_CMAR_MA[31:0] bits
Kojto	158:b23ee177fd68	330	*/
Kojto	158:b23ee177fd68	331	LL_DMA_SetMemoryAddress(DMAx, Channel, DMA_InitStruct->MemoryOrM2MDstAddress);
Kojto	158:b23ee177fd68	332
Kojto	158:b23ee177fd68	333	/*-------------------------- DMAx CPAR Configuration -------------------------
Kojto	158:b23ee177fd68	334	* Configure the peripheral or source base address with parameter :
Kojto	158:b23ee177fd68	335	* - PeriphOrM2MSrcAddress: DMA_CPAR_PA[31:0] bits
Kojto	158:b23ee177fd68	336	*/
Kojto	158:b23ee177fd68	337	LL_DMA_SetPeriphAddress(DMAx, Channel, DMA_InitStruct->PeriphOrM2MSrcAddress);
Kojto	158:b23ee177fd68	338
Kojto	158:b23ee177fd68	339	/*--------------------------- DMAx CNDTR Configuration -----------------------
Kojto	158:b23ee177fd68	340	* Configure the peripheral base address with parameter :
Kojto	158:b23ee177fd68	341	* - NbData: DMA_CNDTR_NDT[15:0] bits
Kojto	158:b23ee177fd68	342	*/
Kojto	158:b23ee177fd68	343	LL_DMA_SetDataLength(DMAx, Channel, DMA_InitStruct->NbData);
Kojto	158:b23ee177fd68	344
Kojto	158:b23ee177fd68	345	/*--------------------------- DMAx CSELR Configuration -----------------------
Kojto	158:b23ee177fd68	346	* Configure the peripheral base address with parameter :
Kojto	158:b23ee177fd68	347	* - PeriphRequest: DMA_CSELR[31:0] bits
Kojto	158:b23ee177fd68	348	*/
Kojto	158:b23ee177fd68	349	LL_DMA_SetPeriphRequest(DMAx, Channel, DMA_InitStruct->PeriphRequest);
Kojto	158:b23ee177fd68	350
Kojto	158:b23ee177fd68	351	return SUCCESS;
Kojto	158:b23ee177fd68	352	}
Kojto	158:b23ee177fd68	353
Kojto	158:b23ee177fd68	354	/**
Kojto	158:b23ee177fd68	355	* @brief Set each @ref LL_DMA_InitTypeDef field to default value.
Kojto	158:b23ee177fd68	356	* @param DMA_InitStruct Pointer to a @ref LL_DMA_InitTypeDef structure.
Kojto	158:b23ee177fd68	357	* @retval None
Kojto	158:b23ee177fd68	358	*/
Kojto	158:b23ee177fd68	359	void LL_DMA_StructInit(LL_DMA_InitTypeDef *DMA_InitStruct)
Kojto	158:b23ee177fd68	360	{
Kojto	158:b23ee177fd68	361	/* Set DMA_InitStruct fields to default values */
Kojto	158:b23ee177fd68	362	DMA_InitStruct->PeriphOrM2MSrcAddress = (uint32_t)0x00000000U;
Kojto	158:b23ee177fd68	363	DMA_InitStruct->MemoryOrM2MDstAddress = (uint32_t)0x00000000U;
Kojto	158:b23ee177fd68	364	DMA_InitStruct->Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
Kojto	158:b23ee177fd68	365	DMA_InitStruct->Mode = LL_DMA_MODE_NORMAL;
Kojto	158:b23ee177fd68	366	DMA_InitStruct->PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
Kojto	158:b23ee177fd68	367	DMA_InitStruct->MemoryOrM2MDstIncMode = LL_DMA_MEMORY_NOINCREMENT;
Kojto	158:b23ee177fd68	368	DMA_InitStruct->PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_BYTE;
Kojto	158:b23ee177fd68	369	DMA_InitStruct->MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_BYTE;
Kojto	158:b23ee177fd68	370	DMA_InitStruct->NbData = (uint32_t)0x00000000U;
Kojto	158:b23ee177fd68	371	DMA_InitStruct->PeriphRequest = LL_DMA_REQUEST_0;
Kojto	158:b23ee177fd68	372	DMA_InitStruct->Priority = LL_DMA_PRIORITY_LOW;
Kojto	158:b23ee177fd68	373	}
Kojto	158:b23ee177fd68	374
Kojto	158:b23ee177fd68	375	/**
Kojto	158:b23ee177fd68	376	* @}
Kojto	158:b23ee177fd68	377	*/
Kojto	158:b23ee177fd68	378
Kojto	158:b23ee177fd68	379	/**
Kojto	158:b23ee177fd68	380	* @}
Kojto	158:b23ee177fd68	381	*/
Kojto	158:b23ee177fd68	382
Kojto	158:b23ee177fd68	383	/**
Kojto	158:b23ee177fd68	384	* @}
Kojto	158:b23ee177fd68	385	*/
Kojto	158:b23ee177fd68	386
Kojto	158:b23ee177fd68	387	#endif /* DMA1 */
Kojto	158:b23ee177fd68	388
Kojto	158:b23ee177fd68	389	/**
Kojto	158:b23ee177fd68	390	* @}
Kojto	158:b23ee177fd68	391	*/
Kojto	158:b23ee177fd68	392
Kojto	158:b23ee177fd68	393	#endif /* USE_FULL_LL_DRIVER */
Kojto	158:b23ee177fd68	394
Kojto	158:b23ee177fd68	395	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/