1 /**
2 ******************************************************************************
3 * @file stm32mp1xx_hal_sd_ex.c
4 * @author MCD Application Team
5 * @brief SD card Extended HAL module driver.
6 * This file provides firmware functions to manage the following
7 * functionalities of the Secure Digital (SD) peripheral:
8 * + Extended features functions
9 *
10 ******************************************************************************
11 * @attention
12 *
13 * Copyright (c) 2019 STMicroelectronics.
14 * All rights reserved.
15 *
16 * This software is licensed under terms that can be found in the LICENSE file
17 * in the root directory of this software component.
18 * If no LICENSE file comes with this software, it is provided AS-IS.
19 *
20 ******************************************************************************
21 @verbatim
22 ==============================================================================
23 ##### How to use this driver #####
24 ==============================================================================
25 [..]
26 The SD Extension HAL driver can be used as follows:
27 (+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_SDEx_ConfigDMAMultiBuffer() function.
28
29 (+) Start Read and Write for multibuffer mode using HAL_SDEx_ReadBlocksDMAMultiBuffer() and HAL_SDEx_WriteBlocksDMAMultiBuffer() functions.
30
31 @endverbatim
32 ******************************************************************************
33 */
34
35 /* Includes ------------------------------------------------------------------*/
36 #include "stm32mp1xx_hal.h"
37
38 /** @addtogroup STM32MP1xx_HAL_Driver
39 * @{
40 */
41
42 /** @defgroup SDEx SDEx
43 * @brief SD Extended HAL module driver
44 * @{
45 */
46
47 #ifdef HAL_SD_MODULE_ENABLED
48
49 /* Private typedef -----------------------------------------------------------*/
50 /* Private define ------------------------------------------------------------*/
51 /* Private macro -------------------------------------------------------------*/
52 /* Private variables ---------------------------------------------------------*/
53 /* Private function prototypes -----------------------------------------------*/
54 /* Private functions ---------------------------------------------------------*/
55 /* Exported functions --------------------------------------------------------*/
56 /** @addtogroup SDEx_Exported_Functions
57 * @{
58 */
59
60 /** @addtogroup SDEx_Exported_Functions_Group1
61 * @brief Multibuffer functions
62 *
63 @verbatim
64 ==============================================================================
65 ##### Multibuffer functions #####
66 ==============================================================================
67 [..]
68 This section provides functions allowing to configure the multibuffer mode and start read and write
69 multibuffer mode for SD HAL driver.
70
71 @endverbatim
72 * @{
73 */
74
75 /**
76 * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA.
77 * @param hsd: SD handle
78 * @param pDataBuffer0: Pointer to the buffer0 that will contain/receive the transfered data
79 * @param pDataBuffer1: Pointer to the buffer1 that will contain/receive the transfered data
80 * @param BufferSize: Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size.
81 * @retval HAL status
82 */
HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t * pDataBuffer0,uint32_t * pDataBuffer1,uint32_t BufferSize)83 HAL_StatusTypeDef HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t *pDataBuffer0, uint32_t *pDataBuffer1, uint32_t BufferSize)
84 {
85 if(hsd->State == HAL_SD_STATE_READY)
86 {
87 hsd->Instance->IDMABASE0= (uint32_t) pDataBuffer0;
88 hsd->Instance->IDMABASE1= (uint32_t) pDataBuffer1;
89 hsd->Instance->IDMABSIZE= (uint32_t) (BLOCKSIZE * BufferSize);
90
91 return HAL_OK;
92 }
93 else
94 {
95 return HAL_BUSY;
96 }
97 }
98
99 /**
100 * @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1.
101 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function.
102 * @param hsd: SD handle
103 * @param BlockAdd: Block Address from where data is to be read
104 * @param NumberOfBlocks: Total number of blocks to read
105 * @retval HAL status
106 */
HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t BlockAdd,uint32_t NumberOfBlocks)107 HAL_StatusTypeDef HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
108 {
109 SDMMC_DataInitTypeDef config;
110 uint32_t errorstate;
111 uint32_t DmaBase0_reg, DmaBase1_reg;
112 uint32_t add = BlockAdd;
113
114 if(hsd->State == HAL_SD_STATE_READY)
115 {
116 if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
117 {
118 hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
119 return HAL_ERROR;
120 }
121
122 DmaBase0_reg = hsd->Instance->IDMABASE0;
123 DmaBase1_reg = hsd->Instance->IDMABASE1;
124 if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
125 {
126 hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
127 return HAL_ERROR;
128 }
129
130 /* Initialize data control register */
131 hsd->Instance->DCTRL = 0;
132 /* Clear old Flags*/
133 __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS);
134
135 hsd->ErrorCode = HAL_SD_ERROR_NONE;
136 hsd->State = HAL_SD_STATE_BUSY;
137
138 if(hsd->SdCard.CardType != CARD_SDHC_SDXC)
139 {
140 add *= 512U;
141 }
142
143 /* Configure the SD DPSM (Data Path State Machine) */
144 config.DataTimeOut = SDMMC_DATATIMEOUT;
145 config.DataLength = BLOCKSIZE * NumberOfBlocks;
146 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
147 config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC;
148 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
149 config.DPSM = SDMMC_DPSM_DISABLE;
150 (void)SDMMC_ConfigData(hsd->Instance, &config);
151
152 hsd->Instance->DCTRL |= SDMMC_DCTRL_FIFORST;
153
154 __SDMMC_CMDTRANS_ENABLE( hsd->Instance);
155
156 hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
157
158 __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC));
159
160 /* Read Blocks in DMA mode */
161 hsd->Context = (SD_CONTEXT_READ_MULTIPLE_BLOCK | SD_CONTEXT_DMA);
162
163 /* Read Multi Block command */
164 errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add);
165 if(errorstate != HAL_SD_ERROR_NONE)
166 {
167 hsd->State = HAL_SD_STATE_READY;
168 hsd->ErrorCode |= errorstate;
169 return HAL_ERROR;
170 }
171
172 return HAL_OK;
173 }
174 else
175 {
176 return HAL_BUSY;
177 }
178
179 }
180
181 /**
182 * @brief Write block(s) to a specified address in a card. The transfered Data are stored in Buffer0 and Buffer1.
183 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function.
184 * @param hsd: SD handle
185 * @param BlockAdd: Block Address from where data is to be read
186 * @param NumberOfBlocks: Total number of blocks to read
187 * @retval HAL status
188 */
HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t BlockAdd,uint32_t NumberOfBlocks)189 HAL_StatusTypeDef HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
190 {
191 SDMMC_DataInitTypeDef config;
192 uint32_t errorstate;
193 uint32_t DmaBase0_reg, DmaBase1_reg;
194 uint32_t add = BlockAdd;
195
196 if(hsd->State == HAL_SD_STATE_READY)
197 {
198 if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
199 {
200 hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
201 return HAL_ERROR;
202 }
203
204 DmaBase0_reg = hsd->Instance->IDMABASE0;
205 DmaBase1_reg = hsd->Instance->IDMABASE1;
206 if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
207 {
208 hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
209 return HAL_ERROR;
210 }
211
212 /* Initialize data control register */
213 hsd->Instance->DCTRL = 0;
214
215 hsd->ErrorCode = HAL_SD_ERROR_NONE;
216
217 hsd->State = HAL_SD_STATE_BUSY;
218
219 if(hsd->SdCard.CardType != CARD_SDHC_SDXC)
220 {
221 add *= 512U;
222 }
223
224 /* Configure the SD DPSM (Data Path State Machine) */
225 config.DataTimeOut = SDMMC_DATATIMEOUT;
226 config.DataLength = BLOCKSIZE * NumberOfBlocks;
227 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
228 config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD;
229 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
230 config.DPSM = SDMMC_DPSM_DISABLE;
231 (void)SDMMC_ConfigData(hsd->Instance, &config);
232
233 __SDMMC_CMDTRANS_ENABLE( hsd->Instance);
234
235 hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
236
237 __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC));
238
239 /* Write Blocks in DMA mode */
240 hsd->Context = (SD_CONTEXT_WRITE_MULTIPLE_BLOCK | SD_CONTEXT_DMA);
241
242 /* Write Multi Block command */
243 errorstate = SDMMC_CmdWriteMultiBlock(hsd->Instance, add);
244 if(errorstate != HAL_SD_ERROR_NONE)
245 {
246 hsd->State = HAL_SD_STATE_READY;
247 hsd->ErrorCode |= errorstate;
248 return HAL_ERROR;
249 }
250
251 return HAL_OK;
252 }
253 else
254 {
255 return HAL_BUSY;
256 }
257 }
258
259
260 /**
261 * @brief Change the DMA Buffer0 or Buffer1 address on the fly.
262 * @param hsd: pointer to a SD_HandleTypeDef structure.
263 * @param Buffer: the buffer to be changed, This parameter can be one of
264 * the following values: SD_DMA_BUFFER0 or SD_DMA_BUFFER1
265 * @param pDataBuffer: The new address
266 * @note The BUFFER0 address can be changed only when the current transfer use
267 * BUFFER1 and the BUFFER1 address can be changed only when the current
268 * transfer use BUFFER0.
269 * @retval HAL status
270 */
HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef * hsd,HAL_SDEx_DMABuffer_MemoryTypeDef Buffer,uint32_t * pDataBuffer)271 HAL_StatusTypeDef HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef *hsd, HAL_SDEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer)
272 {
273 if(Buffer == SD_DMA_BUFFER0)
274 {
275 /* change the buffer0 address */
276 hsd->Instance->IDMABASE0 = (uint32_t)pDataBuffer;
277 }
278 else
279 {
280 /* change the memory1 address */
281 hsd->Instance->IDMABASE1 = (uint32_t)pDataBuffer;
282 }
283
284 return HAL_OK;
285 }
286
287
288 /**
289 * @}
290 */
291
292 /**
293 * @}
294 */
295
296 #endif /* HAL_SD_MODULE_ENABLED */
297
298 /**
299 * @}
300 */
301
302 /**
303 * @}
304 */
305
