1 /**
2 ******************************************************************************
3 * @file stm32l5xx_hal_mmc_ex.c
4 * @author MCD Application Team
5 * @brief MMC card Extended HAL module driver.
6 * This file provides firmware functions to manage the following
7 * functionalities of the Secure Digital (MMC) 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 MMC Extension HAL driver can be used as follows:
27 (+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_MMCEx_ConfigDMAMultiBuffer() function.
28
29 (+) Start Read and Write for multibuffer mode using HAL_MMCEx_ReadBlocksDMAMultiBuffer() and
30 HAL_MMCEx_WriteBlocksDMAMultiBuffer() functions.
31
32 @endverbatim
33 ******************************************************************************
34 */
35
36 /* Includes ------------------------------------------------------------------*/
37 #include "stm32l5xx_hal.h"
38
39 /** @addtogroup STM32L5xx_HAL_Driver
40 * @{
41 */
42
43 /** @defgroup MMCEx MMCEx
44 * @brief MMC Extended HAL module driver
45 * @{
46 */
47
48 #if defined (SDMMC1) || defined (SDMMC2)
49 #ifdef HAL_MMC_MODULE_ENABLED
50
51 /* Private typedef -----------------------------------------------------------*/
52 /* Private define ------------------------------------------------------------*/
53 /* Private macro -------------------------------------------------------------*/
54 /* Private variables ---------------------------------------------------------*/
55 /* Private function prototypes -----------------------------------------------*/
56 /* Private functions ---------------------------------------------------------*/
57 /* Exported functions --------------------------------------------------------*/
58 /** @addtogroup MMCEx_Exported_Functions
59 * @{
60 */
61
62
63
64 /** @addtogroup MMCEx_Exported_Functions_Group1
65 * @brief Multibuffer functions
66 *
67 @verbatim
68 ==============================================================================
69 ##### Multibuffer functions #####
70 ==============================================================================
71 [..]
72 This section provides functions allowing to configure the multibuffer mode and start read and write
73 multibuffer mode for MMC HAL driver.
74
75 @endverbatim
76 * @{
77 */
78
79 /**
80 * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA.
81 * @param hmmc: MMC handle
82 * @param pDataBuffer0: Pointer to the buffer0 that will contain/receive the transferred data
83 * @param pDataBuffer1: Pointer to the buffer1 that will contain/receive the transferred data
84 * @param BufferSize: Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size.
85 * @retval HAL status
86 */
HAL_MMCEx_ConfigDMAMultiBuffer(MMC_HandleTypeDef * hmmc,uint32_t * pDataBuffer0,uint32_t * pDataBuffer1,uint32_t BufferSize)87 HAL_StatusTypeDef HAL_MMCEx_ConfigDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t *pDataBuffer0,
88 uint32_t *pDataBuffer1, uint32_t BufferSize)
89 {
90 if (hmmc->State == HAL_MMC_STATE_READY)
91 {
92 hmmc->Instance->IDMABASE0 = (uint32_t) pDataBuffer0 ;
93 hmmc->Instance->IDMABASE1 = (uint32_t) pDataBuffer1 ;
94 hmmc->Instance->IDMABSIZE = (uint32_t)(MMC_BLOCKSIZE * BufferSize);
95
96 return HAL_OK;
97 }
98 else
99 {
100 return HAL_BUSY;
101 }
102 }
103
104 /**
105 * @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1.
106 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_MMCEx_ConfigDMAMultiBuffer before
107 * call this function.
108 * @param hmmc: MMC handle
109 * @param BlockAdd: Block Address from where data is to be read
110 * @param NumberOfBlocks: Total number of blocks to read
111 * @retval HAL status
112 */
HAL_MMCEx_ReadBlocksDMAMultiBuffer(MMC_HandleTypeDef * hmmc,uint32_t BlockAdd,uint32_t NumberOfBlocks)113 HAL_StatusTypeDef HAL_MMCEx_ReadBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd,
114 uint32_t NumberOfBlocks)
115 {
116 SDMMC_DataInitTypeDef config;
117 uint32_t DmaBase0_reg;
118 uint32_t DmaBase1_reg;
119 uint32_t errorstate;
120 uint32_t add = BlockAdd;
121
122 if (hmmc->State == HAL_MMC_STATE_READY)
123 {
124 if ((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
125 {
126 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
127 return HAL_ERROR;
128 }
129
130 /* Check the case of 4kB blocks (field DATA SECTOR SIZE of extended CSD register) */
131 if (((hmmc->Ext_CSD[(MMC_EXT_CSD_DATA_SEC_SIZE_INDEX / 4)] >> MMC_EXT_CSD_DATA_SEC_SIZE_POS) & 0x000000FFU) != 0x0U)
132 {
133 if ((NumberOfBlocks % 8U) != 0U)
134 {
135 /* The number of blocks should be a multiple of 8 sectors of 512 bytes = 4 KBytes */
136 hmmc->ErrorCode |= HAL_MMC_ERROR_BLOCK_LEN_ERR;
137 return HAL_ERROR;
138 }
139
140 if ((BlockAdd % 8U) != 0U)
141 {
142 /* The address should be aligned to 8 (corresponding to 4 KBytes blocks) */
143 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_MISALIGNED;
144 return HAL_ERROR;
145 }
146 }
147
148 DmaBase0_reg = hmmc->Instance->IDMABASE0;
149 DmaBase1_reg = hmmc->Instance->IDMABASE1;
150
151 if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
152 {
153 hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
154 return HAL_ERROR;
155 }
156
157 /* Initialize data control register */
158 hmmc->Instance->DCTRL = 0;
159
160 hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
161 hmmc->State = HAL_MMC_STATE_BUSY;
162
163 if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD)
164 {
165 add *= 512U;
166 }
167
168 /* Configure the MMC DPSM (Data Path State Machine) */
169 config.DataTimeOut = SDMMC_DATATIMEOUT;
170 config.DataLength = MMC_BLOCKSIZE * NumberOfBlocks;
171 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
172 config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC;
173 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
174 config.DPSM = SDMMC_DPSM_DISABLE;
175 (void)SDMMC_ConfigData(hmmc->Instance, &config);
176
177 hmmc->Instance->DCTRL |= SDMMC_DCTRL_FIFORST;
178
179 __SDMMC_CMDTRANS_ENABLE(hmmc->Instance);
180
181 hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
182
183 /* Read Blocks in DMA mode */
184 hmmc->Context = (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
185
186 /* Read Multi Block command */
187 errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, add);
188 if (errorstate != HAL_MMC_ERROR_NONE)
189 {
190 hmmc->State = HAL_MMC_STATE_READY;
191 hmmc->ErrorCode |= errorstate;
192 return HAL_ERROR;
193 }
194
195 __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND |
196 SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC));
197
198 return HAL_OK;
199 }
200 else
201 {
202 return HAL_BUSY;
203 }
204
205 }
206
207 /**
208 * @brief Write block(s) to a specified address in a card. The transferred Data are stored in Buffer0 and Buffer1.
209 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_MMCEx_ConfigDMAMultiBuffer before
210 * call this function.
211 * @param hmmc: MMC handle
212 * @param BlockAdd: Block Address from where data is to be read
213 * @param NumberOfBlocks: Total number of blocks to read
214 * @retval HAL status
215 */
HAL_MMCEx_WriteBlocksDMAMultiBuffer(MMC_HandleTypeDef * hmmc,uint32_t BlockAdd,uint32_t NumberOfBlocks)216 HAL_StatusTypeDef HAL_MMCEx_WriteBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd,
217 uint32_t NumberOfBlocks)
218 {
219 SDMMC_DataInitTypeDef config;
220 uint32_t errorstate;
221 uint32_t DmaBase0_reg;
222 uint32_t DmaBase1_reg;
223 uint32_t add = BlockAdd;
224
225 if (hmmc->State == HAL_MMC_STATE_READY)
226 {
227 if ((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
228 {
229 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
230 return HAL_ERROR;
231 }
232
233 /* Check the case of 4kB blocks (field DATA SECTOR SIZE of extended CSD register) */
234 if (((hmmc->Ext_CSD[(MMC_EXT_CSD_DATA_SEC_SIZE_INDEX / 4)] >> MMC_EXT_CSD_DATA_SEC_SIZE_POS) & 0x000000FFU) != 0x0U)
235 {
236 if ((NumberOfBlocks % 8U) != 0U)
237 {
238 /* The number of blocks should be a multiple of 8 sectors of 512 bytes = 4 KBytes */
239 hmmc->ErrorCode |= HAL_MMC_ERROR_BLOCK_LEN_ERR;
240 return HAL_ERROR;
241 }
242
243 if ((BlockAdd % 8U) != 0U)
244 {
245 /* The address should be aligned to 8 (corresponding to 4 KBytes blocks) */
246 hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_MISALIGNED;
247 return HAL_ERROR;
248 }
249 }
250
251 DmaBase0_reg = hmmc->Instance->IDMABASE0;
252 DmaBase1_reg = hmmc->Instance->IDMABASE1;
253
254 if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
255 {
256 hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
257 return HAL_ERROR;
258 }
259
260 /* Initialize data control register */
261 hmmc->Instance->DCTRL = 0;
262
263 hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
264
265 hmmc->State = HAL_MMC_STATE_BUSY;
266
267 if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD)
268 {
269 add *= 512U;
270 }
271
272 /* Configure the MMC DPSM (Data Path State Machine) */
273 config.DataTimeOut = SDMMC_DATATIMEOUT;
274 config.DataLength = MMC_BLOCKSIZE * NumberOfBlocks;
275 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
276 config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD;
277 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
278 config.DPSM = SDMMC_DPSM_DISABLE;
279 (void)SDMMC_ConfigData(hmmc->Instance, &config);
280
281 __SDMMC_CMDTRANS_ENABLE(hmmc->Instance);
282
283 hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
284
285 /* Write Blocks in DMA mode */
286 hmmc->Context = (MMC_CONTEXT_WRITE_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
287
288 /* Write Multi Block command */
289 errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, add);
290 if (errorstate != HAL_MMC_ERROR_NONE)
291 {
292 hmmc->State = HAL_MMC_STATE_READY;
293 hmmc->ErrorCode |= errorstate;
294 return HAL_ERROR;
295 }
296
297 __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND |
298 SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC));
299
300 return HAL_OK;
301 }
302 else
303 {
304 return HAL_BUSY;
305 }
306 }
307
308
309 /**
310 * @brief Change the DMA Buffer0 or Buffer1 address on the fly.
311 * @param hmmc: pointer to a MMC_HandleTypeDef structure.
312 * @param Buffer: the buffer to be changed, This parameter can be one of
313 * the following values: MMC_DMA_BUFFER0 or MMC_DMA_BUFFER1
314 * @param pDataBuffer: The new address
315 * @note The BUFFER0 address can be changed only when the current transfer use
316 * BUFFER1 and the BUFFER1 address can be changed only when the current
317 * transfer use BUFFER0.
318 * @retval HAL status
319 */
HAL_MMCEx_ChangeDMABuffer(MMC_HandleTypeDef * hmmc,HAL_MMCEx_DMABuffer_MemoryTypeDef Buffer,uint32_t * pDataBuffer)320 HAL_StatusTypeDef HAL_MMCEx_ChangeDMABuffer(MMC_HandleTypeDef *hmmc, HAL_MMCEx_DMABuffer_MemoryTypeDef Buffer,
321 uint32_t *pDataBuffer)
322 {
323 if (Buffer == MMC_DMA_BUFFER0)
324 {
325 /* change the buffer0 address */
326 hmmc->Instance->IDMABASE0 = (uint32_t)pDataBuffer;
327 }
328 else
329 {
330 /* change the memory1 address */
331 hmmc->Instance->IDMABASE1 = (uint32_t)pDataBuffer;
332 }
333
334 return HAL_OK;
335 }
336
337
338 /**
339 * @}
340 */
341
342 /**
343 * @}
344 */
345
346 #endif /* HAL_MMC_MODULE_ENABLED */
347 #endif /* SDMMC1 || SDMMC2 */
348
349 /**
350 * @}
351 */
352
353 /**
354 * @}
355 */
356
