fix LPC812 PWM
Fork of mbed-dev by
targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_dma.c@83:a036322b8637, 2016-03-07 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Mar 07 10:00:14 2016 +0000
- Revision:
- 83:a036322b8637
- Parent:
- 0:9b334a45a8ff
Synchronized with git revision ee20d03969aa5c570152f88e8f3d8a4739eed40b
Full URL: https://github.com/mbedmicro/mbed/commit/ee20d03969aa5c570152f88e8f3d8a4739eed40b/
[STM32F7] Update STM32F7Cube_FW version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 0:9b334a45a8ff | 1 | /** |
bogdanm | 0:9b334a45a8ff | 2 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 3 | * @file stm32f7xx_hal_dma.c |
bogdanm | 0:9b334a45a8ff | 4 | * @author MCD Application Team |
mbed_official | 83:a036322b8637 | 5 | * @version V1.0.4 |
mbed_official | 83:a036322b8637 | 6 | * @date 09-December-2015 |
bogdanm | 0:9b334a45a8ff | 7 | * @brief DMA HAL module driver. |
bogdanm | 0:9b334a45a8ff | 8 | * |
bogdanm | 0:9b334a45a8ff | 9 | * This file provides firmware functions to manage the following |
bogdanm | 0:9b334a45a8ff | 10 | * functionalities of the Direct Memory Access (DMA) peripheral: |
bogdanm | 0:9b334a45a8ff | 11 | * + Initialization and de-initialization functions |
bogdanm | 0:9b334a45a8ff | 12 | * + IO operation functions |
bogdanm | 0:9b334a45a8ff | 13 | * + Peripheral State and errors functions |
bogdanm | 0:9b334a45a8ff | 14 | @verbatim |
bogdanm | 0:9b334a45a8ff | 15 | ============================================================================== |
bogdanm | 0:9b334a45a8ff | 16 | ##### How to use this driver ##### |
bogdanm | 0:9b334a45a8ff | 17 | ============================================================================== |
bogdanm | 0:9b334a45a8ff | 18 | [..] |
bogdanm | 0:9b334a45a8ff | 19 | (#) Enable and configure the peripheral to be connected to the DMA Stream |
bogdanm | 0:9b334a45a8ff | 20 | (except for internal SRAM/FLASH memories: no initialization is |
bogdanm | 0:9b334a45a8ff | 21 | necessary) please refer to Reference manual for connection between peripherals |
bogdanm | 0:9b334a45a8ff | 22 | and DMA requests . |
bogdanm | 0:9b334a45a8ff | 23 | |
bogdanm | 0:9b334a45a8ff | 24 | (#) For a given Stream, program the required configuration through the following parameters: |
bogdanm | 0:9b334a45a8ff | 25 | Transfer Direction, Source and Destination data formats, |
bogdanm | 0:9b334a45a8ff | 26 | Circular, Normal or peripheral flow control mode, Stream Priority level, |
bogdanm | 0:9b334a45a8ff | 27 | Source and Destination Increment mode, FIFO mode and its Threshold (if needed), |
bogdanm | 0:9b334a45a8ff | 28 | Burst mode for Source and/or Destination (if needed) using HAL_DMA_Init() function. |
bogdanm | 0:9b334a45a8ff | 29 | |
bogdanm | 0:9b334a45a8ff | 30 | *** Polling mode IO operation *** |
bogdanm | 0:9b334a45a8ff | 31 | ================================= |
bogdanm | 0:9b334a45a8ff | 32 | [..] |
bogdanm | 0:9b334a45a8ff | 33 | (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source |
bogdanm | 0:9b334a45a8ff | 34 | address and destination address and the Length of data to be transferred |
bogdanm | 0:9b334a45a8ff | 35 | (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this |
bogdanm | 0:9b334a45a8ff | 36 | case a fixed Timeout can be configured by User depending from his application. |
bogdanm | 0:9b334a45a8ff | 37 | |
bogdanm | 0:9b334a45a8ff | 38 | *** Interrupt mode IO operation *** |
bogdanm | 0:9b334a45a8ff | 39 | =================================== |
bogdanm | 0:9b334a45a8ff | 40 | [..] |
bogdanm | 0:9b334a45a8ff | 41 | (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority() |
bogdanm | 0:9b334a45a8ff | 42 | (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() |
bogdanm | 0:9b334a45a8ff | 43 | (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of |
bogdanm | 0:9b334a45a8ff | 44 | Source address and destination address and the Length of data to be transferred. In this |
bogdanm | 0:9b334a45a8ff | 45 | case the DMA interrupt is configured |
bogdanm | 0:9b334a45a8ff | 46 | (+) Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine |
bogdanm | 0:9b334a45a8ff | 47 | (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can |
bogdanm | 0:9b334a45a8ff | 48 | add his own function by customization of function pointer XferCpltCallback and |
bogdanm | 0:9b334a45a8ff | 49 | XferErrorCallback (i.e a member of DMA handle structure). |
bogdanm | 0:9b334a45a8ff | 50 | [..] |
bogdanm | 0:9b334a45a8ff | 51 | (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error |
bogdanm | 0:9b334a45a8ff | 52 | detection. |
bogdanm | 0:9b334a45a8ff | 53 | |
bogdanm | 0:9b334a45a8ff | 54 | (#) Use HAL_DMA_Abort() function to abort the current transfer |
bogdanm | 0:9b334a45a8ff | 55 | |
bogdanm | 0:9b334a45a8ff | 56 | -@- In Memory-to-Memory transfer mode, Circular mode is not allowed. |
bogdanm | 0:9b334a45a8ff | 57 | |
bogdanm | 0:9b334a45a8ff | 58 | -@- The FIFO is used mainly to reduce bus usage and to allow data packing/unpacking: it is |
bogdanm | 0:9b334a45a8ff | 59 | possible to set different Data Sizes for the Peripheral and the Memory (ie. you can set |
bogdanm | 0:9b334a45a8ff | 60 | Half-Word data size for the peripheral to access its data register and set Word data size |
bogdanm | 0:9b334a45a8ff | 61 | for the Memory to gain in access time. Each two half words will be packed and written in |
bogdanm | 0:9b334a45a8ff | 62 | a single access to a Word in the Memory). |
bogdanm | 0:9b334a45a8ff | 63 | |
bogdanm | 0:9b334a45a8ff | 64 | -@- When FIFO is disabled, it is not allowed to configure different Data Sizes for Source |
bogdanm | 0:9b334a45a8ff | 65 | and Destination. In this case the Peripheral Data Size will be applied to both Source |
bogdanm | 0:9b334a45a8ff | 66 | and Destination. |
bogdanm | 0:9b334a45a8ff | 67 | |
bogdanm | 0:9b334a45a8ff | 68 | *** DMA HAL driver macros list *** |
bogdanm | 0:9b334a45a8ff | 69 | ============================================= |
bogdanm | 0:9b334a45a8ff | 70 | [..] |
bogdanm | 0:9b334a45a8ff | 71 | Below the list of most used macros in DMA HAL driver. |
bogdanm | 0:9b334a45a8ff | 72 | |
bogdanm | 0:9b334a45a8ff | 73 | (+) __HAL_DMA_ENABLE: Enable the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 74 | (+) __HAL_DMA_DISABLE: Disable the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 75 | (+) __HAL_DMA_GET_FS: Return the current DMA Stream FIFO filled level. |
bogdanm | 0:9b334a45a8ff | 76 | (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Stream interrupts. |
bogdanm | 0:9b334a45a8ff | 77 | (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Stream interrupts. |
bogdanm | 0:9b334a45a8ff | 78 | (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Stream interrupt has occurred or not. |
bogdanm | 0:9b334a45a8ff | 79 | |
bogdanm | 0:9b334a45a8ff | 80 | [..] |
bogdanm | 0:9b334a45a8ff | 81 | (@) You can refer to the DMA HAL driver header file for more useful macros |
bogdanm | 0:9b334a45a8ff | 82 | |
bogdanm | 0:9b334a45a8ff | 83 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 84 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 85 | * @attention |
bogdanm | 0:9b334a45a8ff | 86 | * |
bogdanm | 0:9b334a45a8ff | 87 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
bogdanm | 0:9b334a45a8ff | 88 | * |
bogdanm | 0:9b334a45a8ff | 89 | * Redistribution and use in source and binary forms, with or without modification, |
bogdanm | 0:9b334a45a8ff | 90 | * are permitted provided that the following conditions are met: |
bogdanm | 0:9b334a45a8ff | 91 | * 1. Redistributions of source code must retain the above copyright notice, |
bogdanm | 0:9b334a45a8ff | 92 | * this list of conditions and the following disclaimer. |
bogdanm | 0:9b334a45a8ff | 93 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
bogdanm | 0:9b334a45a8ff | 94 | * this list of conditions and the following disclaimer in the documentation |
bogdanm | 0:9b334a45a8ff | 95 | * and/or other materials provided with the distribution. |
bogdanm | 0:9b334a45a8ff | 96 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
bogdanm | 0:9b334a45a8ff | 97 | * may be used to endorse or promote products derived from this software |
bogdanm | 0:9b334a45a8ff | 98 | * without specific prior written permission. |
bogdanm | 0:9b334a45a8ff | 99 | * |
bogdanm | 0:9b334a45a8ff | 100 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
bogdanm | 0:9b334a45a8ff | 101 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
bogdanm | 0:9b334a45a8ff | 102 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
bogdanm | 0:9b334a45a8ff | 103 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
bogdanm | 0:9b334a45a8ff | 104 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
bogdanm | 0:9b334a45a8ff | 105 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
bogdanm | 0:9b334a45a8ff | 106 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
bogdanm | 0:9b334a45a8ff | 107 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
bogdanm | 0:9b334a45a8ff | 108 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
bogdanm | 0:9b334a45a8ff | 109 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
bogdanm | 0:9b334a45a8ff | 110 | * |
bogdanm | 0:9b334a45a8ff | 111 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 112 | */ |
bogdanm | 0:9b334a45a8ff | 113 | |
bogdanm | 0:9b334a45a8ff | 114 | /* Includes ------------------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 115 | #include "stm32f7xx_hal.h" |
bogdanm | 0:9b334a45a8ff | 116 | |
bogdanm | 0:9b334a45a8ff | 117 | /** @addtogroup STM32F7xx_HAL_Driver |
bogdanm | 0:9b334a45a8ff | 118 | * @{ |
bogdanm | 0:9b334a45a8ff | 119 | */ |
bogdanm | 0:9b334a45a8ff | 120 | |
bogdanm | 0:9b334a45a8ff | 121 | /** @defgroup DMA DMA |
bogdanm | 0:9b334a45a8ff | 122 | * @brief DMA HAL module driver |
bogdanm | 0:9b334a45a8ff | 123 | * @{ |
bogdanm | 0:9b334a45a8ff | 124 | */ |
bogdanm | 0:9b334a45a8ff | 125 | |
bogdanm | 0:9b334a45a8ff | 126 | #ifdef HAL_DMA_MODULE_ENABLED |
bogdanm | 0:9b334a45a8ff | 127 | |
bogdanm | 0:9b334a45a8ff | 128 | /* Private types -------------------------------------------------------------*/ |
mbed_official | 83:a036322b8637 | 129 | typedef struct |
mbed_official | 83:a036322b8637 | 130 | { |
mbed_official | 83:a036322b8637 | 131 | __IO uint32_t ISR; /*!< DMA interrupt status register */ |
mbed_official | 83:a036322b8637 | 132 | __IO uint32_t Reserved0; |
mbed_official | 83:a036322b8637 | 133 | __IO uint32_t IFCR; /*!< DMA interrupt flag clear register */ |
mbed_official | 83:a036322b8637 | 134 | } DMA_Base_Registers; |
mbed_official | 83:a036322b8637 | 135 | |
bogdanm | 0:9b334a45a8ff | 136 | /* Private variables ---------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 137 | /* Private constants ---------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 138 | /** @addtogroup DMA_Private_Constants |
bogdanm | 0:9b334a45a8ff | 139 | * @{ |
bogdanm | 0:9b334a45a8ff | 140 | */ |
bogdanm | 0:9b334a45a8ff | 141 | #define HAL_TIMEOUT_DMA_ABORT ((uint32_t)1000) /* 1s */ |
bogdanm | 0:9b334a45a8ff | 142 | /** |
bogdanm | 0:9b334a45a8ff | 143 | * @} |
bogdanm | 0:9b334a45a8ff | 144 | */ |
bogdanm | 0:9b334a45a8ff | 145 | /* Private macros ------------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 146 | /* Private functions ---------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 147 | /** @addtogroup DMA_Private_Functions |
bogdanm | 0:9b334a45a8ff | 148 | * @{ |
bogdanm | 0:9b334a45a8ff | 149 | */ |
bogdanm | 0:9b334a45a8ff | 150 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); |
mbed_official | 83:a036322b8637 | 151 | static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma); |
mbed_official | 83:a036322b8637 | 152 | |
bogdanm | 0:9b334a45a8ff | 153 | /** |
bogdanm | 0:9b334a45a8ff | 154 | * @brief Sets the DMA Transfer parameter. |
bogdanm | 0:9b334a45a8ff | 155 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 156 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 157 | * @param SrcAddress: The source memory Buffer address |
bogdanm | 0:9b334a45a8ff | 158 | * @param DstAddress: The destination memory Buffer address |
bogdanm | 0:9b334a45a8ff | 159 | * @param DataLength: The length of data to be transferred from source to destination |
bogdanm | 0:9b334a45a8ff | 160 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 161 | */ |
bogdanm | 0:9b334a45a8ff | 162 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
bogdanm | 0:9b334a45a8ff | 163 | { |
bogdanm | 0:9b334a45a8ff | 164 | /* Clear DBM bit */ |
bogdanm | 0:9b334a45a8ff | 165 | hdma->Instance->CR &= (uint32_t)(~DMA_SxCR_DBM); |
bogdanm | 0:9b334a45a8ff | 166 | |
bogdanm | 0:9b334a45a8ff | 167 | /* Configure DMA Stream data length */ |
bogdanm | 0:9b334a45a8ff | 168 | hdma->Instance->NDTR = DataLength; |
bogdanm | 0:9b334a45a8ff | 169 | |
bogdanm | 0:9b334a45a8ff | 170 | /* Peripheral to Memory */ |
bogdanm | 0:9b334a45a8ff | 171 | if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) |
bogdanm | 0:9b334a45a8ff | 172 | { |
bogdanm | 0:9b334a45a8ff | 173 | /* Configure DMA Stream destination address */ |
bogdanm | 0:9b334a45a8ff | 174 | hdma->Instance->PAR = DstAddress; |
bogdanm | 0:9b334a45a8ff | 175 | |
bogdanm | 0:9b334a45a8ff | 176 | /* Configure DMA Stream source address */ |
bogdanm | 0:9b334a45a8ff | 177 | hdma->Instance->M0AR = SrcAddress; |
bogdanm | 0:9b334a45a8ff | 178 | } |
bogdanm | 0:9b334a45a8ff | 179 | /* Memory to Peripheral */ |
bogdanm | 0:9b334a45a8ff | 180 | else |
bogdanm | 0:9b334a45a8ff | 181 | { |
bogdanm | 0:9b334a45a8ff | 182 | /* Configure DMA Stream source address */ |
bogdanm | 0:9b334a45a8ff | 183 | hdma->Instance->PAR = SrcAddress; |
bogdanm | 0:9b334a45a8ff | 184 | |
bogdanm | 0:9b334a45a8ff | 185 | /* Configure DMA Stream destination address */ |
bogdanm | 0:9b334a45a8ff | 186 | hdma->Instance->M0AR = DstAddress; |
bogdanm | 0:9b334a45a8ff | 187 | } |
bogdanm | 0:9b334a45a8ff | 188 | } |
bogdanm | 0:9b334a45a8ff | 189 | |
bogdanm | 0:9b334a45a8ff | 190 | /** |
bogdanm | 0:9b334a45a8ff | 191 | * @} |
bogdanm | 0:9b334a45a8ff | 192 | */ |
bogdanm | 0:9b334a45a8ff | 193 | |
bogdanm | 0:9b334a45a8ff | 194 | /* Exported functions ---------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 195 | /** @addtogroup DMA_Exported_Functions |
bogdanm | 0:9b334a45a8ff | 196 | * @{ |
bogdanm | 0:9b334a45a8ff | 197 | */ |
bogdanm | 0:9b334a45a8ff | 198 | |
bogdanm | 0:9b334a45a8ff | 199 | /** @addtogroup DMA_Exported_Functions_Group1 |
bogdanm | 0:9b334a45a8ff | 200 | * |
bogdanm | 0:9b334a45a8ff | 201 | @verbatim |
bogdanm | 0:9b334a45a8ff | 202 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 203 | ##### Initialization and de-initialization functions ##### |
bogdanm | 0:9b334a45a8ff | 204 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 205 | [..] |
bogdanm | 0:9b334a45a8ff | 206 | This section provides functions allowing to initialize the DMA Stream source |
bogdanm | 0:9b334a45a8ff | 207 | and destination addresses, incrementation and data sizes, transfer direction, |
bogdanm | 0:9b334a45a8ff | 208 | circular/normal mode selection, memory-to-memory mode selection and Stream priority value. |
bogdanm | 0:9b334a45a8ff | 209 | [..] |
bogdanm | 0:9b334a45a8ff | 210 | The HAL_DMA_Init() function follows the DMA configuration procedures as described in |
bogdanm | 0:9b334a45a8ff | 211 | reference manual. |
bogdanm | 0:9b334a45a8ff | 212 | |
bogdanm | 0:9b334a45a8ff | 213 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 214 | * @{ |
bogdanm | 0:9b334a45a8ff | 215 | */ |
bogdanm | 0:9b334a45a8ff | 216 | |
bogdanm | 0:9b334a45a8ff | 217 | /** |
bogdanm | 0:9b334a45a8ff | 218 | * @brief Initializes the DMA according to the specified |
bogdanm | 0:9b334a45a8ff | 219 | * parameters in the DMA_InitTypeDef and create the associated handle. |
bogdanm | 0:9b334a45a8ff | 220 | * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 221 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 222 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 223 | */ |
bogdanm | 0:9b334a45a8ff | 224 | HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 225 | { |
bogdanm | 0:9b334a45a8ff | 226 | uint32_t tmp = 0; |
bogdanm | 0:9b334a45a8ff | 227 | |
bogdanm | 0:9b334a45a8ff | 228 | /* Check the DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 229 | if(hdma == NULL) |
bogdanm | 0:9b334a45a8ff | 230 | { |
bogdanm | 0:9b334a45a8ff | 231 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 232 | } |
bogdanm | 0:9b334a45a8ff | 233 | |
bogdanm | 0:9b334a45a8ff | 234 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 235 | assert_param(IS_DMA_STREAM_ALL_INSTANCE(hdma->Instance)); |
bogdanm | 0:9b334a45a8ff | 236 | assert_param(IS_DMA_CHANNEL(hdma->Init.Channel)); |
bogdanm | 0:9b334a45a8ff | 237 | assert_param(IS_DMA_DIRECTION(hdma->Init.Direction)); |
bogdanm | 0:9b334a45a8ff | 238 | assert_param(IS_DMA_PERIPHERAL_INC_STATE(hdma->Init.PeriphInc)); |
bogdanm | 0:9b334a45a8ff | 239 | assert_param(IS_DMA_MEMORY_INC_STATE(hdma->Init.MemInc)); |
bogdanm | 0:9b334a45a8ff | 240 | assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(hdma->Init.PeriphDataAlignment)); |
bogdanm | 0:9b334a45a8ff | 241 | assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment)); |
bogdanm | 0:9b334a45a8ff | 242 | assert_param(IS_DMA_MODE(hdma->Init.Mode)); |
bogdanm | 0:9b334a45a8ff | 243 | assert_param(IS_DMA_PRIORITY(hdma->Init.Priority)); |
bogdanm | 0:9b334a45a8ff | 244 | assert_param(IS_DMA_FIFO_MODE_STATE(hdma->Init.FIFOMode)); |
bogdanm | 0:9b334a45a8ff | 245 | /* Check the memory burst, peripheral burst and FIFO threshold parameters only |
bogdanm | 0:9b334a45a8ff | 246 | when FIFO mode is enabled */ |
bogdanm | 0:9b334a45a8ff | 247 | if(hdma->Init.FIFOMode != DMA_FIFOMODE_DISABLE) |
bogdanm | 0:9b334a45a8ff | 248 | { |
bogdanm | 0:9b334a45a8ff | 249 | assert_param(IS_DMA_FIFO_THRESHOLD(hdma->Init.FIFOThreshold)); |
bogdanm | 0:9b334a45a8ff | 250 | assert_param(IS_DMA_MEMORY_BURST(hdma->Init.MemBurst)); |
bogdanm | 0:9b334a45a8ff | 251 | assert_param(IS_DMA_PERIPHERAL_BURST(hdma->Init.PeriphBurst)); |
bogdanm | 0:9b334a45a8ff | 252 | } |
bogdanm | 0:9b334a45a8ff | 253 | |
bogdanm | 0:9b334a45a8ff | 254 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 255 | hdma->State = HAL_DMA_STATE_BUSY; |
bogdanm | 0:9b334a45a8ff | 256 | |
bogdanm | 0:9b334a45a8ff | 257 | /* Get the CR register value */ |
bogdanm | 0:9b334a45a8ff | 258 | tmp = hdma->Instance->CR; |
bogdanm | 0:9b334a45a8ff | 259 | |
bogdanm | 0:9b334a45a8ff | 260 | /* Clear CHSEL, MBURST, PBURST, PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR, CT and DBM bits */ |
bogdanm | 0:9b334a45a8ff | 261 | tmp &= ((uint32_t)~(DMA_SxCR_CHSEL | DMA_SxCR_MBURST | DMA_SxCR_PBURST | \ |
bogdanm | 0:9b334a45a8ff | 262 | DMA_SxCR_PL | DMA_SxCR_MSIZE | DMA_SxCR_PSIZE | \ |
bogdanm | 0:9b334a45a8ff | 263 | DMA_SxCR_MINC | DMA_SxCR_PINC | DMA_SxCR_CIRC | \ |
bogdanm | 0:9b334a45a8ff | 264 | DMA_SxCR_DIR | DMA_SxCR_CT | DMA_SxCR_DBM)); |
bogdanm | 0:9b334a45a8ff | 265 | |
bogdanm | 0:9b334a45a8ff | 266 | /* Prepare the DMA Stream configuration */ |
bogdanm | 0:9b334a45a8ff | 267 | tmp |= hdma->Init.Channel | hdma->Init.Direction | |
bogdanm | 0:9b334a45a8ff | 268 | hdma->Init.PeriphInc | hdma->Init.MemInc | |
bogdanm | 0:9b334a45a8ff | 269 | hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment | |
bogdanm | 0:9b334a45a8ff | 270 | hdma->Init.Mode | hdma->Init.Priority; |
bogdanm | 0:9b334a45a8ff | 271 | |
bogdanm | 0:9b334a45a8ff | 272 | /* the Memory burst and peripheral burst are not used when the FIFO is disabled */ |
bogdanm | 0:9b334a45a8ff | 273 | if(hdma->Init.FIFOMode == DMA_FIFOMODE_ENABLE) |
bogdanm | 0:9b334a45a8ff | 274 | { |
bogdanm | 0:9b334a45a8ff | 275 | /* Get memory burst and peripheral burst */ |
bogdanm | 0:9b334a45a8ff | 276 | tmp |= hdma->Init.MemBurst | hdma->Init.PeriphBurst; |
bogdanm | 0:9b334a45a8ff | 277 | } |
bogdanm | 0:9b334a45a8ff | 278 | |
bogdanm | 0:9b334a45a8ff | 279 | /* Write to DMA Stream CR register */ |
bogdanm | 0:9b334a45a8ff | 280 | hdma->Instance->CR = tmp; |
bogdanm | 0:9b334a45a8ff | 281 | |
bogdanm | 0:9b334a45a8ff | 282 | /* Get the FCR register value */ |
bogdanm | 0:9b334a45a8ff | 283 | tmp = hdma->Instance->FCR; |
bogdanm | 0:9b334a45a8ff | 284 | |
bogdanm | 0:9b334a45a8ff | 285 | /* Clear Direct mode and FIFO threshold bits */ |
bogdanm | 0:9b334a45a8ff | 286 | tmp &= (uint32_t)~(DMA_SxFCR_DMDIS | DMA_SxFCR_FTH); |
bogdanm | 0:9b334a45a8ff | 287 | |
bogdanm | 0:9b334a45a8ff | 288 | /* Prepare the DMA Stream FIFO configuration */ |
bogdanm | 0:9b334a45a8ff | 289 | tmp |= hdma->Init.FIFOMode; |
bogdanm | 0:9b334a45a8ff | 290 | |
bogdanm | 0:9b334a45a8ff | 291 | /* the FIFO threshold is not used when the FIFO mode is disabled */ |
bogdanm | 0:9b334a45a8ff | 292 | if(hdma->Init.FIFOMode == DMA_FIFOMODE_ENABLE) |
bogdanm | 0:9b334a45a8ff | 293 | { |
bogdanm | 0:9b334a45a8ff | 294 | /* Get the FIFO threshold */ |
bogdanm | 0:9b334a45a8ff | 295 | tmp |= hdma->Init.FIFOThreshold; |
bogdanm | 0:9b334a45a8ff | 296 | } |
bogdanm | 0:9b334a45a8ff | 297 | |
bogdanm | 0:9b334a45a8ff | 298 | /* Write to DMA Stream FCR */ |
bogdanm | 0:9b334a45a8ff | 299 | hdma->Instance->FCR = tmp; |
bogdanm | 0:9b334a45a8ff | 300 | |
mbed_official | 83:a036322b8637 | 301 | /* Initialize StreamBaseAddress and StreamIndex parameters to be used to calculate |
mbed_official | 83:a036322b8637 | 302 | DMA steam Base Address needed by HAL_DMA_IRQHandler() and HAL_DMA_PollForTransfer() */ |
mbed_official | 83:a036322b8637 | 303 | DMA_CalcBaseAndBitshift(hdma); |
mbed_official | 83:a036322b8637 | 304 | |
bogdanm | 0:9b334a45a8ff | 305 | /* Initialize the error code */ |
bogdanm | 0:9b334a45a8ff | 306 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 307 | |
bogdanm | 0:9b334a45a8ff | 308 | /* Initialize the DMA state */ |
bogdanm | 0:9b334a45a8ff | 309 | hdma->State = HAL_DMA_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 310 | |
bogdanm | 0:9b334a45a8ff | 311 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 312 | } |
bogdanm | 0:9b334a45a8ff | 313 | |
bogdanm | 0:9b334a45a8ff | 314 | /** |
bogdanm | 0:9b334a45a8ff | 315 | * @brief DeInitializes the DMA peripheral |
bogdanm | 0:9b334a45a8ff | 316 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 317 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 318 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 319 | */ |
bogdanm | 0:9b334a45a8ff | 320 | HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 321 | { |
mbed_official | 83:a036322b8637 | 322 | DMA_Base_Registers *regs; |
mbed_official | 83:a036322b8637 | 323 | |
bogdanm | 0:9b334a45a8ff | 324 | /* Check the DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 325 | if(hdma == NULL) |
bogdanm | 0:9b334a45a8ff | 326 | { |
bogdanm | 0:9b334a45a8ff | 327 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 328 | } |
bogdanm | 0:9b334a45a8ff | 329 | |
bogdanm | 0:9b334a45a8ff | 330 | /* Check the DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 331 | if(hdma->State == HAL_DMA_STATE_BUSY) |
bogdanm | 0:9b334a45a8ff | 332 | { |
bogdanm | 0:9b334a45a8ff | 333 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 334 | } |
bogdanm | 0:9b334a45a8ff | 335 | |
bogdanm | 0:9b334a45a8ff | 336 | /* Disable the selected DMA Streamx */ |
bogdanm | 0:9b334a45a8ff | 337 | __HAL_DMA_DISABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 338 | |
bogdanm | 0:9b334a45a8ff | 339 | /* Reset DMA Streamx control register */ |
bogdanm | 0:9b334a45a8ff | 340 | hdma->Instance->CR = 0; |
bogdanm | 0:9b334a45a8ff | 341 | |
bogdanm | 0:9b334a45a8ff | 342 | /* Reset DMA Streamx number of data to transfer register */ |
bogdanm | 0:9b334a45a8ff | 343 | hdma->Instance->NDTR = 0; |
bogdanm | 0:9b334a45a8ff | 344 | |
bogdanm | 0:9b334a45a8ff | 345 | /* Reset DMA Streamx peripheral address register */ |
bogdanm | 0:9b334a45a8ff | 346 | hdma->Instance->PAR = 0; |
bogdanm | 0:9b334a45a8ff | 347 | |
bogdanm | 0:9b334a45a8ff | 348 | /* Reset DMA Streamx memory 0 address register */ |
bogdanm | 0:9b334a45a8ff | 349 | hdma->Instance->M0AR = 0; |
bogdanm | 0:9b334a45a8ff | 350 | |
bogdanm | 0:9b334a45a8ff | 351 | /* Reset DMA Streamx memory 1 address register */ |
bogdanm | 0:9b334a45a8ff | 352 | hdma->Instance->M1AR = 0; |
bogdanm | 0:9b334a45a8ff | 353 | |
bogdanm | 0:9b334a45a8ff | 354 | /* Reset DMA Streamx FIFO control register */ |
bogdanm | 0:9b334a45a8ff | 355 | hdma->Instance->FCR = (uint32_t)0x00000021; |
bogdanm | 0:9b334a45a8ff | 356 | |
mbed_official | 83:a036322b8637 | 357 | /* Get DMA steam Base Address */ |
mbed_official | 83:a036322b8637 | 358 | regs = (DMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma); |
mbed_official | 83:a036322b8637 | 359 | |
mbed_official | 83:a036322b8637 | 360 | /* Clear all interrupt flags at correct offset within the register */ |
mbed_official | 83:a036322b8637 | 361 | regs->IFCR = 0x3F << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 362 | |
bogdanm | 0:9b334a45a8ff | 363 | /* Initialize the error code */ |
bogdanm | 0:9b334a45a8ff | 364 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 365 | |
bogdanm | 0:9b334a45a8ff | 366 | /* Initialize the DMA state */ |
bogdanm | 0:9b334a45a8ff | 367 | hdma->State = HAL_DMA_STATE_RESET; |
bogdanm | 0:9b334a45a8ff | 368 | |
bogdanm | 0:9b334a45a8ff | 369 | /* Release Lock */ |
bogdanm | 0:9b334a45a8ff | 370 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 371 | |
bogdanm | 0:9b334a45a8ff | 372 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 373 | } |
bogdanm | 0:9b334a45a8ff | 374 | |
bogdanm | 0:9b334a45a8ff | 375 | /** |
bogdanm | 0:9b334a45a8ff | 376 | * @} |
bogdanm | 0:9b334a45a8ff | 377 | */ |
bogdanm | 0:9b334a45a8ff | 378 | |
bogdanm | 0:9b334a45a8ff | 379 | /** @addtogroup DMA_Exported_Functions_Group2 |
bogdanm | 0:9b334a45a8ff | 380 | * |
bogdanm | 0:9b334a45a8ff | 381 | @verbatim |
bogdanm | 0:9b334a45a8ff | 382 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 383 | ##### IO operation functions ##### |
bogdanm | 0:9b334a45a8ff | 384 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 385 | [..] This section provides functions allowing to: |
bogdanm | 0:9b334a45a8ff | 386 | (+) Configure the source, destination address and data length and Start DMA transfer |
bogdanm | 0:9b334a45a8ff | 387 | (+) Configure the source, destination address and data length and |
bogdanm | 0:9b334a45a8ff | 388 | Start DMA transfer with interrupt |
bogdanm | 0:9b334a45a8ff | 389 | (+) Abort DMA transfer |
bogdanm | 0:9b334a45a8ff | 390 | (+) Poll for transfer complete |
bogdanm | 0:9b334a45a8ff | 391 | (+) Handle DMA interrupt request |
bogdanm | 0:9b334a45a8ff | 392 | |
bogdanm | 0:9b334a45a8ff | 393 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 394 | * @{ |
bogdanm | 0:9b334a45a8ff | 395 | */ |
bogdanm | 0:9b334a45a8ff | 396 | |
bogdanm | 0:9b334a45a8ff | 397 | /** |
bogdanm | 0:9b334a45a8ff | 398 | * @brief Starts the DMA Transfer. |
bogdanm | 0:9b334a45a8ff | 399 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 400 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 401 | * @param SrcAddress: The source memory Buffer address |
bogdanm | 0:9b334a45a8ff | 402 | * @param DstAddress: The destination memory Buffer address |
bogdanm | 0:9b334a45a8ff | 403 | * @param DataLength: The length of data to be transferred from source to destination |
bogdanm | 0:9b334a45a8ff | 404 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 405 | */ |
bogdanm | 0:9b334a45a8ff | 406 | HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
bogdanm | 0:9b334a45a8ff | 407 | { |
bogdanm | 0:9b334a45a8ff | 408 | /* Process locked */ |
bogdanm | 0:9b334a45a8ff | 409 | __HAL_LOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 410 | |
bogdanm | 0:9b334a45a8ff | 411 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 412 | hdma->State = HAL_DMA_STATE_BUSY; |
bogdanm | 0:9b334a45a8ff | 413 | |
bogdanm | 0:9b334a45a8ff | 414 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 415 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
bogdanm | 0:9b334a45a8ff | 416 | |
bogdanm | 0:9b334a45a8ff | 417 | /* Disable the peripheral */ |
bogdanm | 0:9b334a45a8ff | 418 | __HAL_DMA_DISABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 419 | |
bogdanm | 0:9b334a45a8ff | 420 | /* Configure the source, destination address and the data length */ |
bogdanm | 0:9b334a45a8ff | 421 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
bogdanm | 0:9b334a45a8ff | 422 | |
bogdanm | 0:9b334a45a8ff | 423 | /* Enable the Peripheral */ |
bogdanm | 0:9b334a45a8ff | 424 | __HAL_DMA_ENABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 425 | |
bogdanm | 0:9b334a45a8ff | 426 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 427 | } |
bogdanm | 0:9b334a45a8ff | 428 | |
bogdanm | 0:9b334a45a8ff | 429 | /** |
bogdanm | 0:9b334a45a8ff | 430 | * @brief Start the DMA Transfer with interrupt enabled. |
bogdanm | 0:9b334a45a8ff | 431 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 432 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 433 | * @param SrcAddress: The source memory Buffer address |
bogdanm | 0:9b334a45a8ff | 434 | * @param DstAddress: The destination memory Buffer address |
bogdanm | 0:9b334a45a8ff | 435 | * @param DataLength: The length of data to be transferred from source to destination |
bogdanm | 0:9b334a45a8ff | 436 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 437 | */ |
bogdanm | 0:9b334a45a8ff | 438 | HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
bogdanm | 0:9b334a45a8ff | 439 | { |
bogdanm | 0:9b334a45a8ff | 440 | /* Process locked */ |
bogdanm | 0:9b334a45a8ff | 441 | __HAL_LOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 442 | |
bogdanm | 0:9b334a45a8ff | 443 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 444 | hdma->State = HAL_DMA_STATE_BUSY; |
bogdanm | 0:9b334a45a8ff | 445 | |
bogdanm | 0:9b334a45a8ff | 446 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 447 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
bogdanm | 0:9b334a45a8ff | 448 | |
bogdanm | 0:9b334a45a8ff | 449 | /* Disable the peripheral */ |
bogdanm | 0:9b334a45a8ff | 450 | __HAL_DMA_DISABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 451 | |
bogdanm | 0:9b334a45a8ff | 452 | /* Configure the source, destination address and the data length */ |
bogdanm | 0:9b334a45a8ff | 453 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
bogdanm | 0:9b334a45a8ff | 454 | |
mbed_official | 83:a036322b8637 | 455 | /* Enable all interrupts */ |
mbed_official | 83:a036322b8637 | 456 | hdma->Instance->CR |= DMA_IT_TC | DMA_IT_HT | DMA_IT_TE | DMA_IT_DME; |
mbed_official | 83:a036322b8637 | 457 | hdma->Instance->FCR |= DMA_IT_FE; |
bogdanm | 0:9b334a45a8ff | 458 | |
bogdanm | 0:9b334a45a8ff | 459 | /* Enable the Peripheral */ |
bogdanm | 0:9b334a45a8ff | 460 | __HAL_DMA_ENABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 461 | |
bogdanm | 0:9b334a45a8ff | 462 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 463 | } |
bogdanm | 0:9b334a45a8ff | 464 | |
bogdanm | 0:9b334a45a8ff | 465 | /** |
bogdanm | 0:9b334a45a8ff | 466 | * @brief Aborts the DMA Transfer. |
bogdanm | 0:9b334a45a8ff | 467 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 468 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 469 | * |
bogdanm | 0:9b334a45a8ff | 470 | * @note After disabling a DMA Stream, a check for wait until the DMA Stream is |
bogdanm | 0:9b334a45a8ff | 471 | * effectively disabled is added. If a Stream is disabled |
bogdanm | 0:9b334a45a8ff | 472 | * while a data transfer is ongoing, the current data will be transferred |
bogdanm | 0:9b334a45a8ff | 473 | * and the Stream will be effectively disabled only after the transfer of |
bogdanm | 0:9b334a45a8ff | 474 | * this single data is finished. |
bogdanm | 0:9b334a45a8ff | 475 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 476 | */ |
bogdanm | 0:9b334a45a8ff | 477 | HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 478 | { |
bogdanm | 0:9b334a45a8ff | 479 | uint32_t tickstart = 0; |
bogdanm | 0:9b334a45a8ff | 480 | |
bogdanm | 0:9b334a45a8ff | 481 | /* Disable the stream */ |
bogdanm | 0:9b334a45a8ff | 482 | __HAL_DMA_DISABLE(hdma); |
bogdanm | 0:9b334a45a8ff | 483 | |
bogdanm | 0:9b334a45a8ff | 484 | /* Get tick */ |
bogdanm | 0:9b334a45a8ff | 485 | tickstart = HAL_GetTick(); |
bogdanm | 0:9b334a45a8ff | 486 | |
bogdanm | 0:9b334a45a8ff | 487 | /* Check if the DMA Stream is effectively disabled */ |
bogdanm | 0:9b334a45a8ff | 488 | while((hdma->Instance->CR & DMA_SxCR_EN) != 0) |
bogdanm | 0:9b334a45a8ff | 489 | { |
bogdanm | 0:9b334a45a8ff | 490 | /* Check for the Timeout */ |
bogdanm | 0:9b334a45a8ff | 491 | if((HAL_GetTick() - tickstart ) > HAL_TIMEOUT_DMA_ABORT) |
bogdanm | 0:9b334a45a8ff | 492 | { |
bogdanm | 0:9b334a45a8ff | 493 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 494 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 495 | |
bogdanm | 0:9b334a45a8ff | 496 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 497 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 498 | |
bogdanm | 0:9b334a45a8ff | 499 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 500 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 501 | |
bogdanm | 0:9b334a45a8ff | 502 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 503 | } |
bogdanm | 0:9b334a45a8ff | 504 | } |
bogdanm | 0:9b334a45a8ff | 505 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 506 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 507 | |
bogdanm | 0:9b334a45a8ff | 508 | /* Change the DMA state*/ |
bogdanm | 0:9b334a45a8ff | 509 | hdma->State = HAL_DMA_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 510 | |
bogdanm | 0:9b334a45a8ff | 511 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 512 | } |
bogdanm | 0:9b334a45a8ff | 513 | |
bogdanm | 0:9b334a45a8ff | 514 | /** |
bogdanm | 0:9b334a45a8ff | 515 | * @brief Polling for transfer complete. |
bogdanm | 0:9b334a45a8ff | 516 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 517 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 518 | * @param CompleteLevel: Specifies the DMA level complete. |
bogdanm | 0:9b334a45a8ff | 519 | * @param Timeout: Timeout duration. |
bogdanm | 0:9b334a45a8ff | 520 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 521 | */ |
bogdanm | 0:9b334a45a8ff | 522 | HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout) |
bogdanm | 0:9b334a45a8ff | 523 | { |
bogdanm | 0:9b334a45a8ff | 524 | uint32_t temp, tmp, tmp1, tmp2; |
bogdanm | 0:9b334a45a8ff | 525 | uint32_t tickstart = 0; |
bogdanm | 0:9b334a45a8ff | 526 | |
mbed_official | 83:a036322b8637 | 527 | /* calculate DMA base and stream number */ |
mbed_official | 83:a036322b8637 | 528 | DMA_Base_Registers *regs; |
mbed_official | 83:a036322b8637 | 529 | |
mbed_official | 83:a036322b8637 | 530 | regs = (DMA_Base_Registers *)hdma->StreamBaseAddress; |
mbed_official | 83:a036322b8637 | 531 | |
bogdanm | 0:9b334a45a8ff | 532 | /* Get the level transfer complete flag */ |
bogdanm | 0:9b334a45a8ff | 533 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
bogdanm | 0:9b334a45a8ff | 534 | { |
bogdanm | 0:9b334a45a8ff | 535 | /* Transfer Complete flag */ |
mbed_official | 83:a036322b8637 | 536 | temp = DMA_FLAG_TCIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 537 | } |
bogdanm | 0:9b334a45a8ff | 538 | else |
bogdanm | 0:9b334a45a8ff | 539 | { |
bogdanm | 0:9b334a45a8ff | 540 | /* Half Transfer Complete flag */ |
mbed_official | 83:a036322b8637 | 541 | temp = DMA_FLAG_HTIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 542 | } |
bogdanm | 0:9b334a45a8ff | 543 | |
bogdanm | 0:9b334a45a8ff | 544 | /* Get tick */ |
bogdanm | 0:9b334a45a8ff | 545 | tickstart = HAL_GetTick(); |
bogdanm | 0:9b334a45a8ff | 546 | |
mbed_official | 83:a036322b8637 | 547 | while((regs->ISR & temp) == RESET) |
bogdanm | 0:9b334a45a8ff | 548 | { |
mbed_official | 83:a036322b8637 | 549 | tmp = regs->ISR & (DMA_FLAG_TEIF0_4 << hdma->StreamIndex); |
mbed_official | 83:a036322b8637 | 550 | tmp1 = regs->ISR & (DMA_FLAG_FEIF0_4 << hdma->StreamIndex); |
mbed_official | 83:a036322b8637 | 551 | tmp2 = regs->ISR & (DMA_FLAG_DMEIF0_4 << hdma->StreamIndex); |
bogdanm | 0:9b334a45a8ff | 552 | if((tmp != RESET) || (tmp1 != RESET) || (tmp2 != RESET)) |
bogdanm | 0:9b334a45a8ff | 553 | { |
bogdanm | 0:9b334a45a8ff | 554 | if(tmp != RESET) |
bogdanm | 0:9b334a45a8ff | 555 | { |
bogdanm | 0:9b334a45a8ff | 556 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 557 | hdma->ErrorCode |= HAL_DMA_ERROR_TE; |
bogdanm | 0:9b334a45a8ff | 558 | |
bogdanm | 0:9b334a45a8ff | 559 | /* Clear the transfer error flag */ |
mbed_official | 83:a036322b8637 | 560 | regs->IFCR = DMA_FLAG_TEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 561 | } |
bogdanm | 0:9b334a45a8ff | 562 | if(tmp1 != RESET) |
bogdanm | 0:9b334a45a8ff | 563 | { |
bogdanm | 0:9b334a45a8ff | 564 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 565 | hdma->ErrorCode |= HAL_DMA_ERROR_FE; |
bogdanm | 0:9b334a45a8ff | 566 | |
bogdanm | 0:9b334a45a8ff | 567 | /* Clear the FIFO error flag */ |
mbed_official | 83:a036322b8637 | 568 | regs->IFCR = DMA_FLAG_FEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 569 | } |
bogdanm | 0:9b334a45a8ff | 570 | if(tmp2 != RESET) |
bogdanm | 0:9b334a45a8ff | 571 | { |
bogdanm | 0:9b334a45a8ff | 572 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 573 | hdma->ErrorCode |= HAL_DMA_ERROR_DME; |
bogdanm | 0:9b334a45a8ff | 574 | |
bogdanm | 0:9b334a45a8ff | 575 | /* Clear the Direct Mode error flag */ |
mbed_official | 83:a036322b8637 | 576 | regs->IFCR = DMA_FLAG_DMEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 577 | } |
bogdanm | 0:9b334a45a8ff | 578 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 579 | hdma->State= HAL_DMA_STATE_ERROR; |
bogdanm | 0:9b334a45a8ff | 580 | |
bogdanm | 0:9b334a45a8ff | 581 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 582 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 583 | |
bogdanm | 0:9b334a45a8ff | 584 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 585 | } |
bogdanm | 0:9b334a45a8ff | 586 | /* Check for the Timeout */ |
bogdanm | 0:9b334a45a8ff | 587 | if(Timeout != HAL_MAX_DELAY) |
bogdanm | 0:9b334a45a8ff | 588 | { |
bogdanm | 0:9b334a45a8ff | 589 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
bogdanm | 0:9b334a45a8ff | 590 | { |
bogdanm | 0:9b334a45a8ff | 591 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 592 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 593 | |
bogdanm | 0:9b334a45a8ff | 594 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 595 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 596 | |
bogdanm | 0:9b334a45a8ff | 597 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 598 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 599 | |
bogdanm | 0:9b334a45a8ff | 600 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 601 | } |
bogdanm | 0:9b334a45a8ff | 602 | } |
bogdanm | 0:9b334a45a8ff | 603 | } |
bogdanm | 0:9b334a45a8ff | 604 | |
bogdanm | 0:9b334a45a8ff | 605 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
bogdanm | 0:9b334a45a8ff | 606 | { |
mbed_official | 83:a036322b8637 | 607 | /* Clear the half transfer and transfer complete flags */ |
mbed_official | 83:a036322b8637 | 608 | regs->IFCR = (DMA_FLAG_HTIF0_4 | DMA_FLAG_TCIF0_4) << hdma->StreamIndex; |
mbed_official | 83:a036322b8637 | 609 | |
bogdanm | 0:9b334a45a8ff | 610 | /* Multi_Buffering mode enabled */ |
bogdanm | 0:9b334a45a8ff | 611 | if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0) |
bogdanm | 0:9b334a45a8ff | 612 | { |
bogdanm | 0:9b334a45a8ff | 613 | /* Current memory buffer used is Memory 0 */ |
bogdanm | 0:9b334a45a8ff | 614 | if((hdma->Instance->CR & DMA_SxCR_CT) == 0) |
bogdanm | 0:9b334a45a8ff | 615 | { |
bogdanm | 0:9b334a45a8ff | 616 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 617 | hdma->State = HAL_DMA_STATE_READY_MEM0; |
bogdanm | 0:9b334a45a8ff | 618 | } |
bogdanm | 0:9b334a45a8ff | 619 | /* Current memory buffer used is Memory 1 */ |
bogdanm | 0:9b334a45a8ff | 620 | else if((hdma->Instance->CR & DMA_SxCR_CT) != 0) |
bogdanm | 0:9b334a45a8ff | 621 | { |
bogdanm | 0:9b334a45a8ff | 622 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 623 | hdma->State = HAL_DMA_STATE_READY_MEM1; |
bogdanm | 0:9b334a45a8ff | 624 | } |
bogdanm | 0:9b334a45a8ff | 625 | } |
bogdanm | 0:9b334a45a8ff | 626 | else |
bogdanm | 0:9b334a45a8ff | 627 | { |
bogdanm | 0:9b334a45a8ff | 628 | /* The selected Streamx EN bit is cleared (DMA is disabled and all transfers |
bogdanm | 0:9b334a45a8ff | 629 | are complete) */ |
bogdanm | 0:9b334a45a8ff | 630 | hdma->State = HAL_DMA_STATE_READY_MEM0; |
bogdanm | 0:9b334a45a8ff | 631 | } |
bogdanm | 0:9b334a45a8ff | 632 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 633 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 634 | } |
bogdanm | 0:9b334a45a8ff | 635 | else |
mbed_official | 83:a036322b8637 | 636 | { |
mbed_official | 83:a036322b8637 | 637 | /* Clear the half transfer complete flag */ |
mbed_official | 83:a036322b8637 | 638 | regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex; |
mbed_official | 83:a036322b8637 | 639 | |
bogdanm | 0:9b334a45a8ff | 640 | /* Multi_Buffering mode enabled */ |
bogdanm | 0:9b334a45a8ff | 641 | if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0) |
bogdanm | 0:9b334a45a8ff | 642 | { |
bogdanm | 0:9b334a45a8ff | 643 | /* Current memory buffer used is Memory 0 */ |
bogdanm | 0:9b334a45a8ff | 644 | if((hdma->Instance->CR & DMA_SxCR_CT) == 0) |
bogdanm | 0:9b334a45a8ff | 645 | { |
bogdanm | 0:9b334a45a8ff | 646 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 647 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM0; |
bogdanm | 0:9b334a45a8ff | 648 | } |
bogdanm | 0:9b334a45a8ff | 649 | /* Current memory buffer used is Memory 1 */ |
bogdanm | 0:9b334a45a8ff | 650 | else if((hdma->Instance->CR & DMA_SxCR_CT) != 0) |
bogdanm | 0:9b334a45a8ff | 651 | { |
bogdanm | 0:9b334a45a8ff | 652 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 653 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM1; |
bogdanm | 0:9b334a45a8ff | 654 | } |
bogdanm | 0:9b334a45a8ff | 655 | } |
bogdanm | 0:9b334a45a8ff | 656 | else |
bogdanm | 0:9b334a45a8ff | 657 | { |
bogdanm | 0:9b334a45a8ff | 658 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 659 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM0; |
bogdanm | 0:9b334a45a8ff | 660 | } |
bogdanm | 0:9b334a45a8ff | 661 | } |
bogdanm | 0:9b334a45a8ff | 662 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 663 | } |
bogdanm | 0:9b334a45a8ff | 664 | |
bogdanm | 0:9b334a45a8ff | 665 | /** |
bogdanm | 0:9b334a45a8ff | 666 | * @brief Handles DMA interrupt request. |
bogdanm | 0:9b334a45a8ff | 667 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 668 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 669 | * @retval None |
bogdanm | 0:9b334a45a8ff | 670 | */ |
bogdanm | 0:9b334a45a8ff | 671 | void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 672 | { |
mbed_official | 83:a036322b8637 | 673 | /* calculate DMA base and stream number */ |
mbed_official | 83:a036322b8637 | 674 | DMA_Base_Registers *regs; |
mbed_official | 83:a036322b8637 | 675 | |
mbed_official | 83:a036322b8637 | 676 | regs = (DMA_Base_Registers *)hdma->StreamBaseAddress; |
mbed_official | 83:a036322b8637 | 677 | |
bogdanm | 0:9b334a45a8ff | 678 | /* Transfer Error Interrupt management ***************************************/ |
mbed_official | 83:a036322b8637 | 679 | if ((regs->ISR & (DMA_FLAG_TEIF0_4 << hdma->StreamIndex)) != RESET) |
bogdanm | 0:9b334a45a8ff | 680 | { |
bogdanm | 0:9b334a45a8ff | 681 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != RESET) |
bogdanm | 0:9b334a45a8ff | 682 | { |
bogdanm | 0:9b334a45a8ff | 683 | /* Disable the transfer error interrupt */ |
bogdanm | 0:9b334a45a8ff | 684 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE); |
bogdanm | 0:9b334a45a8ff | 685 | |
bogdanm | 0:9b334a45a8ff | 686 | /* Clear the transfer error flag */ |
mbed_official | 83:a036322b8637 | 687 | regs->IFCR = DMA_FLAG_TEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 688 | |
bogdanm | 0:9b334a45a8ff | 689 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 690 | hdma->ErrorCode |= HAL_DMA_ERROR_TE; |
bogdanm | 0:9b334a45a8ff | 691 | |
bogdanm | 0:9b334a45a8ff | 692 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 693 | hdma->State = HAL_DMA_STATE_ERROR; |
bogdanm | 0:9b334a45a8ff | 694 | |
bogdanm | 0:9b334a45a8ff | 695 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 696 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 697 | |
bogdanm | 0:9b334a45a8ff | 698 | if(hdma->XferErrorCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 699 | { |
bogdanm | 0:9b334a45a8ff | 700 | /* Transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 701 | hdma->XferErrorCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 702 | } |
bogdanm | 0:9b334a45a8ff | 703 | } |
bogdanm | 0:9b334a45a8ff | 704 | } |
bogdanm | 0:9b334a45a8ff | 705 | /* FIFO Error Interrupt management ******************************************/ |
mbed_official | 83:a036322b8637 | 706 | if ((regs->ISR & (DMA_FLAG_FEIF0_4 << hdma->StreamIndex)) != RESET) |
bogdanm | 0:9b334a45a8ff | 707 | { |
bogdanm | 0:9b334a45a8ff | 708 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_FE) != RESET) |
bogdanm | 0:9b334a45a8ff | 709 | { |
bogdanm | 0:9b334a45a8ff | 710 | /* Disable the FIFO Error interrupt */ |
bogdanm | 0:9b334a45a8ff | 711 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_FE); |
bogdanm | 0:9b334a45a8ff | 712 | |
bogdanm | 0:9b334a45a8ff | 713 | /* Clear the FIFO error flag */ |
mbed_official | 83:a036322b8637 | 714 | regs->IFCR = DMA_FLAG_FEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 715 | |
bogdanm | 0:9b334a45a8ff | 716 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 717 | hdma->ErrorCode |= HAL_DMA_ERROR_FE; |
bogdanm | 0:9b334a45a8ff | 718 | |
bogdanm | 0:9b334a45a8ff | 719 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 720 | hdma->State = HAL_DMA_STATE_ERROR; |
bogdanm | 0:9b334a45a8ff | 721 | |
bogdanm | 0:9b334a45a8ff | 722 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 723 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 724 | |
bogdanm | 0:9b334a45a8ff | 725 | if(hdma->XferErrorCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 726 | { |
bogdanm | 0:9b334a45a8ff | 727 | /* Transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 728 | hdma->XferErrorCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 729 | } |
bogdanm | 0:9b334a45a8ff | 730 | } |
bogdanm | 0:9b334a45a8ff | 731 | } |
bogdanm | 0:9b334a45a8ff | 732 | /* Direct Mode Error Interrupt management ***********************************/ |
mbed_official | 83:a036322b8637 | 733 | if ((regs->ISR & (DMA_FLAG_DMEIF0_4 << hdma->StreamIndex)) != RESET) |
bogdanm | 0:9b334a45a8ff | 734 | { |
bogdanm | 0:9b334a45a8ff | 735 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_DME) != RESET) |
bogdanm | 0:9b334a45a8ff | 736 | { |
bogdanm | 0:9b334a45a8ff | 737 | /* Disable the direct mode Error interrupt */ |
bogdanm | 0:9b334a45a8ff | 738 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_DME); |
bogdanm | 0:9b334a45a8ff | 739 | |
bogdanm | 0:9b334a45a8ff | 740 | /* Clear the direct mode error flag */ |
mbed_official | 83:a036322b8637 | 741 | regs->IFCR = DMA_FLAG_DMEIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 742 | |
bogdanm | 0:9b334a45a8ff | 743 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 744 | hdma->ErrorCode |= HAL_DMA_ERROR_DME; |
bogdanm | 0:9b334a45a8ff | 745 | |
bogdanm | 0:9b334a45a8ff | 746 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 747 | hdma->State = HAL_DMA_STATE_ERROR; |
bogdanm | 0:9b334a45a8ff | 748 | |
bogdanm | 0:9b334a45a8ff | 749 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 750 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 751 | |
bogdanm | 0:9b334a45a8ff | 752 | if(hdma->XferErrorCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 753 | { |
bogdanm | 0:9b334a45a8ff | 754 | /* Transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 755 | hdma->XferErrorCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 756 | } |
bogdanm | 0:9b334a45a8ff | 757 | } |
bogdanm | 0:9b334a45a8ff | 758 | } |
bogdanm | 0:9b334a45a8ff | 759 | /* Half Transfer Complete Interrupt management ******************************/ |
mbed_official | 83:a036322b8637 | 760 | if ((regs->ISR & (DMA_FLAG_HTIF0_4 << hdma->StreamIndex)) != RESET) |
bogdanm | 0:9b334a45a8ff | 761 | { |
bogdanm | 0:9b334a45a8ff | 762 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET) |
bogdanm | 0:9b334a45a8ff | 763 | { |
bogdanm | 0:9b334a45a8ff | 764 | /* Multi_Buffering mode enabled */ |
bogdanm | 0:9b334a45a8ff | 765 | if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0) |
bogdanm | 0:9b334a45a8ff | 766 | { |
bogdanm | 0:9b334a45a8ff | 767 | /* Clear the half transfer complete flag */ |
mbed_official | 83:a036322b8637 | 768 | regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 769 | |
bogdanm | 0:9b334a45a8ff | 770 | /* Current memory buffer used is Memory 0 */ |
bogdanm | 0:9b334a45a8ff | 771 | if((hdma->Instance->CR & DMA_SxCR_CT) == 0) |
bogdanm | 0:9b334a45a8ff | 772 | { |
bogdanm | 0:9b334a45a8ff | 773 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 774 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM0; |
bogdanm | 0:9b334a45a8ff | 775 | } |
bogdanm | 0:9b334a45a8ff | 776 | /* Current memory buffer used is Memory 1 */ |
bogdanm | 0:9b334a45a8ff | 777 | else if((hdma->Instance->CR & DMA_SxCR_CT) != 0) |
bogdanm | 0:9b334a45a8ff | 778 | { |
bogdanm | 0:9b334a45a8ff | 779 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 780 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM1; |
bogdanm | 0:9b334a45a8ff | 781 | } |
bogdanm | 0:9b334a45a8ff | 782 | } |
bogdanm | 0:9b334a45a8ff | 783 | else |
bogdanm | 0:9b334a45a8ff | 784 | { |
bogdanm | 0:9b334a45a8ff | 785 | /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */ |
bogdanm | 0:9b334a45a8ff | 786 | if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0) |
bogdanm | 0:9b334a45a8ff | 787 | { |
bogdanm | 0:9b334a45a8ff | 788 | /* Disable the half transfer interrupt */ |
bogdanm | 0:9b334a45a8ff | 789 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT); |
bogdanm | 0:9b334a45a8ff | 790 | } |
bogdanm | 0:9b334a45a8ff | 791 | /* Clear the half transfer complete flag */ |
mbed_official | 83:a036322b8637 | 792 | regs->IFCR = DMA_FLAG_HTIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 793 | |
bogdanm | 0:9b334a45a8ff | 794 | /* Change DMA peripheral state */ |
bogdanm | 0:9b334a45a8ff | 795 | hdma->State = HAL_DMA_STATE_READY_HALF_MEM0; |
bogdanm | 0:9b334a45a8ff | 796 | } |
bogdanm | 0:9b334a45a8ff | 797 | |
bogdanm | 0:9b334a45a8ff | 798 | if(hdma->XferHalfCpltCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 799 | { |
bogdanm | 0:9b334a45a8ff | 800 | /* Half transfer callback */ |
bogdanm | 0:9b334a45a8ff | 801 | hdma->XferHalfCpltCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 802 | } |
bogdanm | 0:9b334a45a8ff | 803 | } |
bogdanm | 0:9b334a45a8ff | 804 | } |
bogdanm | 0:9b334a45a8ff | 805 | /* Transfer Complete Interrupt management ***********************************/ |
mbed_official | 83:a036322b8637 | 806 | if ((regs->ISR & (DMA_FLAG_TCIF0_4 << hdma->StreamIndex)) != RESET) |
bogdanm | 0:9b334a45a8ff | 807 | { |
bogdanm | 0:9b334a45a8ff | 808 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET) |
bogdanm | 0:9b334a45a8ff | 809 | { |
bogdanm | 0:9b334a45a8ff | 810 | if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0) |
bogdanm | 0:9b334a45a8ff | 811 | { |
bogdanm | 0:9b334a45a8ff | 812 | /* Clear the transfer complete flag */ |
mbed_official | 83:a036322b8637 | 813 | regs->IFCR = DMA_FLAG_TCIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 814 | |
bogdanm | 0:9b334a45a8ff | 815 | /* Current memory buffer used is Memory 1 */ |
bogdanm | 0:9b334a45a8ff | 816 | if((hdma->Instance->CR & DMA_SxCR_CT) == 0) |
bogdanm | 0:9b334a45a8ff | 817 | { |
bogdanm | 0:9b334a45a8ff | 818 | if(hdma->XferM1CpltCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 819 | { |
bogdanm | 0:9b334a45a8ff | 820 | /* Transfer complete Callback for memory1 */ |
bogdanm | 0:9b334a45a8ff | 821 | hdma->XferM1CpltCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 822 | } |
bogdanm | 0:9b334a45a8ff | 823 | } |
bogdanm | 0:9b334a45a8ff | 824 | /* Current memory buffer used is Memory 0 */ |
bogdanm | 0:9b334a45a8ff | 825 | else if((hdma->Instance->CR & DMA_SxCR_CT) != 0) |
bogdanm | 0:9b334a45a8ff | 826 | { |
bogdanm | 0:9b334a45a8ff | 827 | if(hdma->XferCpltCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 828 | { |
bogdanm | 0:9b334a45a8ff | 829 | /* Transfer complete Callback for memory0 */ |
bogdanm | 0:9b334a45a8ff | 830 | hdma->XferCpltCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 831 | } |
bogdanm | 0:9b334a45a8ff | 832 | } |
bogdanm | 0:9b334a45a8ff | 833 | } |
bogdanm | 0:9b334a45a8ff | 834 | /* Disable the transfer complete interrupt if the DMA mode is not CIRCULAR */ |
bogdanm | 0:9b334a45a8ff | 835 | else |
bogdanm | 0:9b334a45a8ff | 836 | { |
bogdanm | 0:9b334a45a8ff | 837 | if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0) |
bogdanm | 0:9b334a45a8ff | 838 | { |
bogdanm | 0:9b334a45a8ff | 839 | /* Disable the transfer complete interrupt */ |
bogdanm | 0:9b334a45a8ff | 840 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TC); |
bogdanm | 0:9b334a45a8ff | 841 | } |
bogdanm | 0:9b334a45a8ff | 842 | /* Clear the transfer complete flag */ |
mbed_official | 83:a036322b8637 | 843 | regs->IFCR = DMA_FLAG_TCIF0_4 << hdma->StreamIndex; |
bogdanm | 0:9b334a45a8ff | 844 | |
bogdanm | 0:9b334a45a8ff | 845 | /* Update error code */ |
bogdanm | 0:9b334a45a8ff | 846 | hdma->ErrorCode |= HAL_DMA_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 847 | |
bogdanm | 0:9b334a45a8ff | 848 | /* Change the DMA state */ |
bogdanm | 0:9b334a45a8ff | 849 | hdma->State = HAL_DMA_STATE_READY_MEM0; |
bogdanm | 0:9b334a45a8ff | 850 | |
bogdanm | 0:9b334a45a8ff | 851 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 852 | __HAL_UNLOCK(hdma); |
bogdanm | 0:9b334a45a8ff | 853 | |
bogdanm | 0:9b334a45a8ff | 854 | if(hdma->XferCpltCallback != NULL) |
bogdanm | 0:9b334a45a8ff | 855 | { |
bogdanm | 0:9b334a45a8ff | 856 | /* Transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 857 | hdma->XferCpltCallback(hdma); |
bogdanm | 0:9b334a45a8ff | 858 | } |
bogdanm | 0:9b334a45a8ff | 859 | } |
bogdanm | 0:9b334a45a8ff | 860 | } |
bogdanm | 0:9b334a45a8ff | 861 | } |
bogdanm | 0:9b334a45a8ff | 862 | } |
bogdanm | 0:9b334a45a8ff | 863 | |
mbed_official | 83:a036322b8637 | 864 | |
bogdanm | 0:9b334a45a8ff | 865 | /** |
bogdanm | 0:9b334a45a8ff | 866 | * @} |
bogdanm | 0:9b334a45a8ff | 867 | */ |
bogdanm | 0:9b334a45a8ff | 868 | |
bogdanm | 0:9b334a45a8ff | 869 | /** @addtogroup DMA_Exported_Functions_Group3 |
bogdanm | 0:9b334a45a8ff | 870 | * |
bogdanm | 0:9b334a45a8ff | 871 | @verbatim |
bogdanm | 0:9b334a45a8ff | 872 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 873 | ##### State and Errors functions ##### |
bogdanm | 0:9b334a45a8ff | 874 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 875 | [..] |
bogdanm | 0:9b334a45a8ff | 876 | This subsection provides functions allowing to |
bogdanm | 0:9b334a45a8ff | 877 | (+) Check the DMA state |
bogdanm | 0:9b334a45a8ff | 878 | (+) Get error code |
bogdanm | 0:9b334a45a8ff | 879 | |
bogdanm | 0:9b334a45a8ff | 880 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 881 | * @{ |
bogdanm | 0:9b334a45a8ff | 882 | */ |
bogdanm | 0:9b334a45a8ff | 883 | |
bogdanm | 0:9b334a45a8ff | 884 | /** |
bogdanm | 0:9b334a45a8ff | 885 | * @brief Returns the DMA state. |
bogdanm | 0:9b334a45a8ff | 886 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 887 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 888 | * @retval HAL state |
bogdanm | 0:9b334a45a8ff | 889 | */ |
bogdanm | 0:9b334a45a8ff | 890 | HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 891 | { |
bogdanm | 0:9b334a45a8ff | 892 | return hdma->State; |
bogdanm | 0:9b334a45a8ff | 893 | } |
bogdanm | 0:9b334a45a8ff | 894 | |
bogdanm | 0:9b334a45a8ff | 895 | /** |
bogdanm | 0:9b334a45a8ff | 896 | * @brief Return the DMA error code |
bogdanm | 0:9b334a45a8ff | 897 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 898 | * the configuration information for the specified DMA Stream. |
bogdanm | 0:9b334a45a8ff | 899 | * @retval DMA Error Code |
bogdanm | 0:9b334a45a8ff | 900 | */ |
bogdanm | 0:9b334a45a8ff | 901 | uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 902 | { |
bogdanm | 0:9b334a45a8ff | 903 | return hdma->ErrorCode; |
bogdanm | 0:9b334a45a8ff | 904 | } |
bogdanm | 0:9b334a45a8ff | 905 | |
bogdanm | 0:9b334a45a8ff | 906 | /** |
bogdanm | 0:9b334a45a8ff | 907 | * @} |
bogdanm | 0:9b334a45a8ff | 908 | */ |
bogdanm | 0:9b334a45a8ff | 909 | |
bogdanm | 0:9b334a45a8ff | 910 | /** |
mbed_official | 83:a036322b8637 | 911 | * @brief Returns the DMA Stream base address depending on stream number |
mbed_official | 83:a036322b8637 | 912 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
mbed_official | 83:a036322b8637 | 913 | * the configuration information for the specified DMA Stream. |
mbed_official | 83:a036322b8637 | 914 | * @retval Stream base address |
mbed_official | 83:a036322b8637 | 915 | */ |
mbed_official | 83:a036322b8637 | 916 | static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma) |
mbed_official | 83:a036322b8637 | 917 | { |
mbed_official | 83:a036322b8637 | 918 | uint32_t stream_number = (((uint32_t)hdma->Instance & 0xFF) - 16) / 24; |
mbed_official | 83:a036322b8637 | 919 | |
mbed_official | 83:a036322b8637 | 920 | /* lookup table for necessary bitshift of flags within status registers */ |
mbed_official | 83:a036322b8637 | 921 | static const uint8_t flagBitshiftOffset[8] = {0, 6, 16, 22, 0, 6, 16, 22}; |
mbed_official | 83:a036322b8637 | 922 | hdma->StreamIndex = flagBitshiftOffset[stream_number]; |
mbed_official | 83:a036322b8637 | 923 | |
mbed_official | 83:a036322b8637 | 924 | if (stream_number > 3) |
mbed_official | 83:a036322b8637 | 925 | { |
mbed_official | 83:a036322b8637 | 926 | /* return pointer to HISR and HIFCR */ |
mbed_official | 83:a036322b8637 | 927 | hdma->StreamBaseAddress = (((uint32_t)hdma->Instance & (uint32_t)(~0x3FF)) + 4); |
mbed_official | 83:a036322b8637 | 928 | } |
mbed_official | 83:a036322b8637 | 929 | else |
mbed_official | 83:a036322b8637 | 930 | { |
mbed_official | 83:a036322b8637 | 931 | /* return pointer to LISR and LIFCR */ |
mbed_official | 83:a036322b8637 | 932 | hdma->StreamBaseAddress = ((uint32_t)hdma->Instance & (uint32_t)(~0x3FF)); |
mbed_official | 83:a036322b8637 | 933 | } |
mbed_official | 83:a036322b8637 | 934 | |
mbed_official | 83:a036322b8637 | 935 | return hdma->StreamBaseAddress; |
mbed_official | 83:a036322b8637 | 936 | } |
mbed_official | 83:a036322b8637 | 937 | /** |
bogdanm | 0:9b334a45a8ff | 938 | * @} |
bogdanm | 0:9b334a45a8ff | 939 | */ |
bogdanm | 0:9b334a45a8ff | 940 | |
bogdanm | 0:9b334a45a8ff | 941 | #endif /* HAL_DMA_MODULE_ENABLED */ |
bogdanm | 0:9b334a45a8ff | 942 | /** |
bogdanm | 0:9b334a45a8ff | 943 | * @} |
bogdanm | 0:9b334a45a8ff | 944 | */ |
bogdanm | 0:9b334a45a8ff | 945 | |
bogdanm | 0:9b334a45a8ff | 946 | /** |
bogdanm | 0:9b334a45a8ff | 947 | * @} |
bogdanm | 0:9b334a45a8ff | 948 | */ |
bogdanm | 0:9b334a45a8ff | 949 | |
bogdanm | 0:9b334a45a8ff | 950 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |