1 /**
2 ******************************************************************************
3 * @file stm32h7xx_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) 2017 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 (+) Start Read and Write for multibuffer mode using HAL_SDEx_ReadBlocksDMAMultiBuffer()
29 and HAL_SDEx_WriteBlocksDMAMultiBuffer() functions.
30
31 @endverbatim
32 ******************************************************************************
33 */
34
35 /* Includes ------------------------------------------------------------------*/
36 #include "stm32h7xx_hal.h"
37
38 /** @addtogroup STM32H7xx_HAL_Driver
39 * @{
40 */
41
42 /** @defgroup SDEx SDEx
43 * @brief SD Extended HAL module driver
44 * @{
45 */
46
47 #if defined (SDMMC1) || defined (SDMMC2)
48 #ifdef HAL_SD_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 SDEx_Exported_Functions
58 * @{
59 */
60
61 /** @addtogroup SDEx_Exported_Functions_Group1
62 * @brief Multibuffer functions
63 *
64 @verbatim
65 ==============================================================================
66 ##### Multibuffer functions #####
67 ==============================================================================
68 [..]
69 This section provides functions allowing to configure the multibuffer mode and start read and write
70 multibuffer mode for SD HAL driver.
71
72 @endverbatim
73 * @{
74 */
75
76 /**
77 * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA.
78 * @param hsd: SD handle
79 * @param pDataBuffer0: Pointer to the buffer0 that will contain/receive the transferred data
80 * @param pDataBuffer1: Pointer to the buffer1 that will contain/receive the transferred data
81 * @param BufferSize: Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size.
82 * @retval HAL status
83 */
HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t * pDataBuffer0,uint32_t * pDataBuffer1,uint32_t BufferSize)84 HAL_StatusTypeDef HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t *pDataBuffer0, uint32_t *pDataBuffer1,
85 uint32_t BufferSize)
86 {
87 if (hsd->State == HAL_SD_STATE_READY)
88 {
89 hsd->Instance->IDMABASE0 = (uint32_t) pDataBuffer0;
90 hsd->Instance->IDMABASE1 = (uint32_t) pDataBuffer1;
91 hsd->Instance->IDMABSIZE = (uint32_t)(BLOCKSIZE * BufferSize);
92
93 return HAL_OK;
94 }
95 else
96 {
97 return HAL_BUSY;
98 }
99 }
100
101 /**
102 * @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1.
103 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before
104 * call this function.
105 * @param hsd: SD handle
106 * @param BlockAdd: Block Address from where data is to be read
107 * @param NumberOfBlocks: Total number of blocks to read
108 * @retval HAL status
109 */
HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t BlockAdd,uint32_t NumberOfBlocks)110 HAL_StatusTypeDef HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
111 {
112 SDMMC_DataInitTypeDef config;
113 uint32_t errorstate;
114 uint32_t DmaBase0_reg;
115 uint32_t DmaBase1_reg;
116 uint32_t add = BlockAdd;
117
118 if (hsd->State == HAL_SD_STATE_READY)
119 {
120 if ((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
121 {
122 hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
123 return HAL_ERROR;
124 }
125
126 DmaBase0_reg = hsd->Instance->IDMABASE0;
127 DmaBase1_reg = hsd->Instance->IDMABASE1;
128
129 if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
130 {
131 hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
132 return HAL_ERROR;
133 }
134
135 /* Initialize data control register */
136 hsd->Instance->DCTRL = 0;
137 /* Clear old Flags*/
138 __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_DATA_FLAGS);
139
140 hsd->ErrorCode = HAL_SD_ERROR_NONE;
141 hsd->State = HAL_SD_STATE_BUSY;
142
143 if (hsd->SdCard.CardType != CARD_SDHC_SDXC)
144 {
145 add *= 512U;
146 }
147
148 /* Configure the SD DPSM (Data Path State Machine) */
149 config.DataTimeOut = SDMMC_DATATIMEOUT;
150 config.DataLength = BLOCKSIZE * NumberOfBlocks;
151 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
152 config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC;
153 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
154 config.DPSM = SDMMC_DPSM_DISABLE;
155 (void)SDMMC_ConfigData(hsd->Instance, &config);
156
157 hsd->Instance->DCTRL |= SDMMC_DCTRL_FIFORST;
158
159 __SDMMC_CMDTRANS_ENABLE(hsd->Instance);
160
161 hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
162
163 /* Read Blocks in DMA mode */
164 hsd->Context = (SD_CONTEXT_READ_MULTIPLE_BLOCK | SD_CONTEXT_DMA);
165
166 /* Read Multi Block command */
167 errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add);
168 if (errorstate != HAL_SD_ERROR_NONE)
169 {
170 hsd->State = HAL_SD_STATE_READY;
171 hsd->ErrorCode |= errorstate;
172 return HAL_ERROR;
173 }
174
175 __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND |
176 SDMMC_IT_IDMABTC));
177
178 return HAL_OK;
179 }
180 else
181 {
182 return HAL_BUSY;
183 }
184
185 }
186
187 /**
188 * @brief Write block(s) to a specified address in a card. The transferred Data are stored in Buffer0 and Buffer1.
189 * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before
190 * call this function.
191 * @param hsd: SD handle
192 * @param BlockAdd: Block Address from where data is to be read
193 * @param NumberOfBlocks: Total number of blocks to read
194 * @retval HAL status
195 */
HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef * hsd,uint32_t BlockAdd,uint32_t NumberOfBlocks)196 HAL_StatusTypeDef HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks)
197 {
198 SDMMC_DataInitTypeDef config;
199 uint32_t errorstate;
200 uint32_t DmaBase0_reg;
201 uint32_t DmaBase1_reg;
202 uint32_t add = BlockAdd;
203
204 if (hsd->State == HAL_SD_STATE_READY)
205 {
206 if ((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr))
207 {
208 hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
209 return HAL_ERROR;
210 }
211
212 DmaBase0_reg = hsd->Instance->IDMABASE0;
213 DmaBase1_reg = hsd->Instance->IDMABASE1;
214 if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U))
215 {
216 hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE;
217 return HAL_ERROR;
218 }
219
220 /* Initialize data control register */
221 hsd->Instance->DCTRL = 0;
222
223 hsd->ErrorCode = HAL_SD_ERROR_NONE;
224
225 hsd->State = HAL_SD_STATE_BUSY;
226
227 if (hsd->SdCard.CardType != CARD_SDHC_SDXC)
228 {
229 add *= 512U;
230 }
231
232 /* Configure the SD DPSM (Data Path State Machine) */
233 config.DataTimeOut = SDMMC_DATATIMEOUT;
234 config.DataLength = BLOCKSIZE * NumberOfBlocks;
235 config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B;
236 config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD;
237 config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
238 config.DPSM = SDMMC_DPSM_DISABLE;
239 (void)SDMMC_ConfigData(hsd->Instance, &config);
240
241 __SDMMC_CMDTRANS_ENABLE(hsd->Instance);
242
243 hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0;
244
245 /* Write Blocks in DMA mode */
246 hsd->Context = (SD_CONTEXT_WRITE_MULTIPLE_BLOCK | SD_CONTEXT_DMA);
247
248 /* Write Multi Block command */
249 errorstate = SDMMC_CmdWriteMultiBlock(hsd->Instance, add);
250 if (errorstate != HAL_SD_ERROR_NONE)
251 {
252 hsd->State = HAL_SD_STATE_READY;
253 hsd->ErrorCode |= errorstate;
254 return HAL_ERROR;
255 }
256
257 __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND |
258 SDMMC_IT_IDMABTC));
259
260 return HAL_OK;
261 }
262 else
263 {
264 return HAL_BUSY;
265 }
266 }
267
268
269 /**
270 * @brief Change the DMA Buffer0 or Buffer1 address on the fly.
271 * @param hsd: pointer to a SD_HandleTypeDef structure.
272 * @param Buffer: the buffer to be changed, This parameter can be one of
273 * the following values: SD_DMA_BUFFER0 or SD_DMA_BUFFER1
274 * @param pDataBuffer: The new address
275 * @note The BUFFER0 address can be changed only when the current transfer use
276 * BUFFER1 and the BUFFER1 address can be changed only when the current
277 * transfer use BUFFER0.
278 * @retval HAL status
279 */
HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef * hsd,HAL_SDEx_DMABuffer_MemoryTypeDef Buffer,uint32_t * pDataBuffer)280 HAL_StatusTypeDef HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef *hsd, HAL_SDEx_DMABuffer_MemoryTypeDef Buffer,
281 uint32_t *pDataBuffer)
282 {
283 if (Buffer == SD_DMA_BUFFER0)
284 {
285 /* change the buffer0 address */
286 hsd->Instance->IDMABASE0 = (uint32_t)pDataBuffer;
287 }
288 else
289 {
290 /* change the memory1 address */
291 hsd->Instance->IDMABASE1 = (uint32_t)pDataBuffer;
292 }
293
294 return HAL_OK;
295 }
296
297
298 /**
299 * @}
300 */
301
302 /**
303 * @}
304 */
305
306 #endif /* HAL_SD_MODULE_ENABLED */
307 #endif /* SDMMC1 || SDMMC2 */
308
309 /**
310 * @}
311 */
312
313 /**
314 * @}
315 */
316
