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