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1 /**
2 ******************************************************************************
3 * @file stm32f1xx_hal_pccard.c
4 * @author MCD Application Team
5 * @version V1.0.0
6 * @date 15-December-2014
7 * @brief PCCARD HAL module driver.
8 * This file provides a generic firmware to drive PCCARD memories mounted
9 * as external device.
10 *
11 @verbatim
12 ===============================================================================
13 ##### How to use this driver #####
14 ===============================================================================
15 [..]
16 This driver is a generic layered driver which contains a set of APIs used to
17 control PCCARD/compact flash memories. It uses the FSMC/FSMC layer functions
18 to interface with PCCARD devices. This driver is used for:
19
20 (+) PCCARD/compact flash memory configuration sequence using the function
21 HAL_PCCARD_Init() with control and timing parameters for both common and
22 attribute spaces.
23
24 (+) Read PCCARD/compact flash memory maker and device IDs using the function
25 HAL_PCCARD_Read_ID(). The read information is stored in the CompactFlash_ID
26 structure declared by the function caller.
27
28 (+) Access PCCARD/compact flash memory by read/write operations using the functions
29 HAL_PCCARD_Read_Sector()/HAL_PCCARD_Write_Sector(), to read/write sector.
30
31 (+) Perform PCCARD/compact flash Reset chip operation using the function HAL_PCCARD_Reset().
32
33 (+) Perform PCCARD/compact flash erase sector operation using the function
34 HAL_PCCARD_Erase_Sector().
35
36 (+) Read the PCCARD/compact flash status operation using the function HAL_PCCARD_ReadStatus().
37
38 (+) You can monitor the PCCARD/compact flash device HAL state by calling the function
39 HAL_PCCARD_GetState()
40
41 [..]
42 (@) This driver is a set of generic APIs which handle standard PCCARD/compact flash
43 operations. If a PCCARD/compact flash device contains different operations
44 and/or implementations, it should be implemented separately.
45
46 @endverbatim
47 ******************************************************************************
48 * @attention
49 *
50 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
51 *
52 * Redistribution and use in source and binary forms, with or without modification,
53 * are permitted provided that the following conditions are met:
54 * 1. Redistributions of source code must retain the above copyright notice,
55 * this list of conditions and the following disclaimer.
56 * 2. Redistributions in binary form must reproduce the above copyright notice,
57 * this list of conditions and the following disclaimer in the documentation
58 * and/or other materials provided with the distribution.
59 * 3. Neither the name of STMicroelectronics nor the names of its contributors
60 * may be used to endorse or promote products derived from this software
61 * without specific prior written permission.
62 *
63 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
64 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
66 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
69 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
70 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
71 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
72 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
73 *
74 ******************************************************************************
75 */
76
77 /* Includes ------------------------------------------------------------------*/
78 #include "stm32f1xx_hal.h"
79
80 /** @addtogroup STM32F1xx_HAL_Driver
81 * @{
82 */
83
84 #ifdef HAL_PCCARD_MODULE_ENABLED
85 #if defined (STM32F101xE) || defined(STM32F103xE) || defined(STM32F101xG) || defined(STM32F103xG)
86
87 /** @defgroup PCCARD PCCARD
88 * @brief PCCARD HAL module driver
89 * @{
90 */
91
92 /* Private typedef -----------------------------------------------------------*/
93 /* Private define ------------------------------------------------------------*/
94 /** @defgroup PCCARD_Private_Constants PCCARD Private Constants
95 * @{
96 */
97
98 #define PCCARD_TIMEOUT_READ_ID (uint32_t)0x0000FFFF
99 #define PCCARD_TIMEOUT_SECTOR (uint32_t)0x0000FFFF
100 #define PCCARD_TIMEOUT_STATUS (uint32_t)0x01000000
101
102 #define PCCARD_STATUS_OK (uint8_t)0x58
103 #define PCCARD_STATUS_WRITE_OK (uint8_t)0x50
104 /**
105 * @}
106 */
107
108 /* Private macro -------------------------------------------------------------*/
109 /* Private variables ---------------------------------------------------------*/
110 /* Private function prototypes -----------------------------------------------*/
111 /* Exported functions ---------------------------------------------------------*/
112
113 /** @defgroup PCCARD_Exported_Functions PCCARD Exported Functions
114 * @{
115 */
116
117 /** @defgroup PCCARD_Exported_Functions_Group1 Initialization and de-initialization functions
118 * @brief Initialization and Configuration functions
119 *
120 @verbatim
121 ==============================================================================
122 ##### PCCARD Initialization and de-initialization functions #####
123 ==============================================================================
124 [..]
125 This section provides functions allowing to initialize/de-initialize
126 the PCCARD memory
127
128 @endverbatim
129 * @{
130 */
131
132 /**
133 * @brief Perform the PCCARD memory Initialization sequence
134 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
135 * the configuration information for PCCARD module.
136 * @param ComSpaceTiming: Common space timing structure
137 * @param AttSpaceTiming: Attribute space timing structure
138 * @param IOSpaceTiming: IO space timing structure
139 * @retval HAL status
140 */
141 HAL_StatusTypeDef HAL_PCCARD_Init(PCCARD_HandleTypeDef *hpccard, FSMC_NAND_PCC_TimingTypeDef *ComSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *AttSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *IOSpaceTiming)
142 {
143 /* Check the PCCARD controller state */
144 if(hpccard == NULL)
145 {
146 return HAL_ERROR;
147 }
148
149 if(hpccard->State == HAL_PCCARD_STATE_RESET)
150 {
151 /* Allocate lock resource and initialize it */
152 hpccard-> Lock = HAL_UNLOCKED;
153
154 /* Initialize the low level hardware (MSP) */
155 HAL_PCCARD_MspInit(hpccard);
156 }
157
158 /* Initialize the PCCARD state */
159 hpccard->State = HAL_PCCARD_STATE_BUSY;
160
161 /* Initialize PCCARD control Interface */
162 FSMC_PCCARD_Init(hpccard->Instance, &(hpccard->Init));
163
164 /* Init PCCARD common space timing Interface */
165 FSMC_PCCARD_CommonSpace_Timing_Init(hpccard->Instance, ComSpaceTiming);
166
167 /* Init PCCARD attribute space timing Interface */
168 FSMC_PCCARD_AttributeSpace_Timing_Init(hpccard->Instance, AttSpaceTiming);
169
170 /* Init PCCARD IO space timing Interface */
171 FSMC_PCCARD_IOSpace_Timing_Init(hpccard->Instance, IOSpaceTiming);
172
173 /* Enable the PCCARD device */
174 __FSMC_PCCARD_ENABLE(hpccard->Instance);
175
176 /* Update the PCCARD state */
177 hpccard->State = HAL_PCCARD_STATE_READY;
178
179 return HAL_OK;
180
181 }
182
183 /**
184 * @brief Perform the PCCARD memory De-initialization sequence
185 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
186 * the configuration information for PCCARD module.
187 * @retval HAL status
188 */
189 HAL_StatusTypeDef HAL_PCCARD_DeInit(PCCARD_HandleTypeDef *hpccard)
190 {
191 /* De-Initialize the low level hardware (MSP) */
192 HAL_PCCARD_MspDeInit(hpccard);
193
194 /* Configure the PCCARD registers with their reset values */
195 FSMC_PCCARD_DeInit(hpccard->Instance);
196
197 /* Update the PCCARD controller state */
198 hpccard->State = HAL_PCCARD_STATE_RESET;
199
200 /* Release Lock */
201 __HAL_UNLOCK(hpccard);
202
203 return HAL_OK;
204 }
205
206 /**
207 * @brief PCCARD MSP Init
208 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
209 * the configuration information for PCCARD module.
210 * @retval None
211 */
212 __weak void HAL_PCCARD_MspInit(PCCARD_HandleTypeDef *hpccard)
213 {
214 /* NOTE : This function Should not be modified, when the callback is needed,
215 the HAL_PCCARD_MspInit could be implemented in the user file
216 */
217 }
218
219 /**
220 * @brief PCCARD MSP DeInit
221 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
222 * the configuration information for PCCARD module.
223 * @retval None
224 */
225 __weak void HAL_PCCARD_MspDeInit(PCCARD_HandleTypeDef *hpccard)
226 {
227 /* NOTE : This function Should not be modified, when the callback is needed,
228 the HAL_PCCARD_MspDeInit could be implemented in the user file
229 */
230 }
231
232 /**
233 * @}
234 */
235
236 /** @defgroup PCCARD_Exported_Functions_Group2 Input Output and memory functions
237 * @brief Input Output and memory control functions
238 *
239 @verbatim
240 ==============================================================================
241 ##### PCCARD Input Output and memory functions #####
242 ==============================================================================
243 [..]
244 This section provides functions allowing to use and control the PCCARD memory
245
246 @endverbatim
247 * @{
248 */
249
250 /**
251 * @brief Read Compact Flash's ID.
252 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
253 * the configuration information for PCCARD module.
254 * @param CompactFlash_ID: Compact flash ID structure.
255 * @param pStatus: pointer to compact flash status
256 * @retval HAL status
257 *
258 */
259 HAL_StatusTypeDef HAL_PCCARD_Read_ID(PCCARD_HandleTypeDef *hpccard, uint8_t CompactFlash_ID[], uint8_t *pStatus)
260 {
261 uint32_t timeout = PCCARD_TIMEOUT_READ_ID, index = 0;
262 uint8_t status = 0;
263
264 /* Process Locked */
265 __HAL_LOCK(hpccard);
266
267 /* Check the PCCARD controller state */
268 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
269 {
270 return HAL_BUSY;
271 }
272
273 /* Update the PCCARD controller state */
274 hpccard->State = HAL_PCCARD_STATE_BUSY;
275
276 /* Initialize the CF status */
277 *pStatus = PCCARD_READY;
278
279 /* Send the Identify Command */
280 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = 0xECEC;
281
282 /* Read CF IDs and timeout treatment */
283 do
284 {
285 /* Read the CF status */
286 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
287
288 timeout--;
289 }while((status != PCCARD_STATUS_OK) && timeout);
290
291 if(timeout == 0)
292 {
293 *pStatus = PCCARD_TIMEOUT_ERROR;
294 }
295 else
296 {
297 /* Read CF ID bytes */
298 for(index = 0; index < 16; index++)
299 {
300 CompactFlash_ID[index] = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_DATA);
301 }
302 }
303
304 /* Update the PCCARD controller state */
305 hpccard->State = HAL_PCCARD_STATE_READY;
306
307 /* Process unlocked */
308 __HAL_UNLOCK(hpccard);
309
310 return HAL_OK;
311 }
312
313 /**
314 * @brief Read sector from PCCARD memory
315 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
316 * the configuration information for PCCARD module.
317 * @param pBuffer: pointer to destination read buffer
318 * @param SectorAddress: Sector address to read
319 * @param pStatus: pointer to CF status
320 * @retval HAL status
321 */
322 HAL_StatusTypeDef HAL_PCCARD_Read_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus)
323 {
324 uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;
325 uint8_t status = 0;
326
327 /* Process Locked */
328 __HAL_LOCK(hpccard);
329
330 /* Check the PCCARD controller state */
331 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
332 {
333 return HAL_BUSY;
334 }
335
336 /* Update the PCCARD controller state */
337 hpccard->State = HAL_PCCARD_STATE_BUSY;
338
339 /* Initialize CF status */
340 *pStatus = PCCARD_READY;
341
342 /* Set the parameters to write a sector */
343 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;
344 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);
345 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = (uint16_t)0xE4A0;
346
347 do
348 {
349 /* wait till the Status = 0x80 */
350 status = *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
351 timeout--;
352 }while((status == 0x80) && timeout);
353
354 if(timeout == 0)
355 {
356 *pStatus = PCCARD_TIMEOUT_ERROR;
357 }
358
359 timeout = 0xFFFF;
360
361 do
362 {
363 /* wait till the Status = PCCARD_STATUS_OK */
364 status = *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
365 timeout--;
366 }while((status != PCCARD_STATUS_OK) && timeout);
367
368 if(timeout == 0)
369 {
370 *pStatus = PCCARD_TIMEOUT_ERROR;
371 }
372
373 /* Read bytes */
374 for(; index < PCCARD_SECTOR_SIZE; index++)
375 {
376 *(uint16_t *)pBuffer++ = *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR);
377 }
378
379 /* Update the PCCARD controller state */
380 hpccard->State = HAL_PCCARD_STATE_READY;
381
382 /* Process unlocked */
383 __HAL_UNLOCK(hpccard);
384
385 return HAL_OK;
386 }
387
388
389 /**
390 * @brief Write sector to PCCARD memory
391 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
392 * the configuration information for PCCARD module.
393 * @param pBuffer: pointer to source write buffer
394 * @param SectorAddress: Sector address to write
395 * @param pStatus: pointer to CF status
396 * @retval HAL status
397 */
398 HAL_StatusTypeDef HAL_PCCARD_Write_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus)
399 {
400 uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;
401 uint8_t status = 0;
402
403 /* Process Locked */
404 __HAL_LOCK(hpccard);
405
406 /* Check the PCCARD controller state */
407 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
408 {
409 return HAL_BUSY;
410 }
411
412 /* Update the PCCARD controller state */
413 hpccard->State = HAL_PCCARD_STATE_BUSY;
414
415 /* Initialize CF status */
416 *pStatus = PCCARD_READY;
417
418 /* Set the parameters to write a sector */
419 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;
420 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);
421 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = (uint16_t)0x30A0;
422
423 do
424 {
425 /* Wait till the Status = PCCARD_STATUS_OK */
426 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
427 timeout--;
428 }while((status != PCCARD_STATUS_OK) && timeout);
429
430 if(timeout == 0)
431 {
432 *pStatus = PCCARD_TIMEOUT_ERROR;
433 }
434
435 /* Write bytes */
436 for(; index < PCCARD_SECTOR_SIZE; index++)
437 {
438 *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR) = *(uint16_t *)pBuffer++;
439 }
440
441 do
442 {
443 /* Wait till the Status = PCCARD_STATUS_WRITE_OK */
444 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
445 timeout--;
446 }while((status != PCCARD_STATUS_WRITE_OK) && timeout);
447
448 if(timeout == 0)
449 {
450 *pStatus = PCCARD_TIMEOUT_ERROR;
451 }
452
453 /* Update the PCCARD controller state */
454 hpccard->State = HAL_PCCARD_STATE_READY;
455
456 /* Process unlocked */
457 __HAL_UNLOCK(hpccard);
458
459 return HAL_OK;
460 }
461
462
463 /**
464 * @brief Erase sector from PCCARD memory
465 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
466 * the configuration information for PCCARD module.
467 * @param SectorAddress: Sector address to erase
468 * @param pStatus: pointer to CF status
469 * @retval HAL status
470 */
471 HAL_StatusTypeDef HAL_PCCARD_Erase_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t SectorAddress, uint8_t *pStatus)
472 {
473 uint32_t timeout = 0x400;
474 uint8_t status = 0;
475
476 /* Process Locked */
477 __HAL_LOCK(hpccard);
478
479 /* Check the PCCARD controller state */
480 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
481 {
482 return HAL_BUSY;
483 }
484
485 /* Update the PCCARD controller state */
486 hpccard->State = HAL_PCCARD_STATE_BUSY;
487
488 /* Initialize CF status */
489 *pStatus = PCCARD_READY;
490
491 /* Set the parameters to write a sector */
492 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_LOW) = 0x00;
493 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = 0x00;
494 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_NUMBER) = SectorAddress;
495 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = 0x01;
496 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CARD_HEAD) = 0xA0;
497 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = ATA_ERASE_SECTOR_CMD;
498
499 /* wait till the CF is ready */
500 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
501
502 while((status != PCCARD_STATUS_WRITE_OK) && timeout)
503 {
504 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
505 timeout--;
506 }
507
508 if(timeout == 0)
509 {
510 *pStatus = PCCARD_TIMEOUT_ERROR;
511 }
512
513 /* Check the PCCARD controller state */
514 hpccard->State = HAL_PCCARD_STATE_READY;
515
516 /* Process unlocked */
517 __HAL_UNLOCK(hpccard);
518
519 return HAL_OK;
520 }
521
522 /**
523 * @brief Reset the PCCARD memory
524 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
525 * the configuration information for PCCARD module.
526 * @retval HAL status
527 */
528 HAL_StatusTypeDef HAL_PCCARD_Reset(PCCARD_HandleTypeDef *hpccard)
529 {
530 /* Process Locked */
531 __HAL_LOCK(hpccard);
532
533 /* Check the PCCARD controller state */
534 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
535 {
536 return HAL_BUSY;
537 }
538
539 /* Provide an SW reset and Read and verify the:
540 - CF Configuration Option Register at address 0x98000200 --> 0x80
541 - Card Configuration and Status Register at address 0x98000202 --> 0x00
542 - Pin Replacement Register at address 0x98000204 --> 0x0C
543 - Socket and Copy Register at address 0x98000206 --> 0x00
544 */
545
546 /* Check the PCCARD controller state */
547 hpccard->State = HAL_PCCARD_STATE_BUSY;
548
549 *(__IO uint8_t *)(PCCARD_ATTRIBUTE_SPACE_ADDRESS | ATA_CARD_CONFIGURATION) = 0x01;
550
551 /* Check the PCCARD controller state */
552 hpccard->State = HAL_PCCARD_STATE_READY;
553
554 /* Process unlocked */
555 __HAL_UNLOCK(hpccard);
556
557 return HAL_OK;
558 }
559
560 /**
561 * @brief This function handles PCCARD device interrupt request.
562 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
563 * the configuration information for PCCARD module.
564 * @retval HAL status
565 */
566 void HAL_PCCARD_IRQHandler(PCCARD_HandleTypeDef *hpccard)
567 {
568 /* Check PCCARD interrupt Rising edge flag */
569 if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE))
570 {
571 /* PCCARD interrupt callback*/
572 HAL_PCCARD_ITCallback(hpccard);
573
574 /* Clear PCCARD interrupt Rising edge pending bit */
575 __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE);
576 }
577
578 /* Check PCCARD interrupt Level flag */
579 if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL))
580 {
581 /* PCCARD interrupt callback*/
582 HAL_PCCARD_ITCallback(hpccard);
583
584 /* Clear PCCARD interrupt Level pending bit */
585 __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL);
586 }
587
588 /* Check PCCARD interrupt Falling edge flag */
589 if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE))
590 {
591 /* PCCARD interrupt callback*/
592 HAL_PCCARD_ITCallback(hpccard);
593
594 /* Clear PCCARD interrupt Falling edge pending bit */
595 __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE);
596 }
597
598 /* Check PCCARD interrupt FIFO empty flag */
599 if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT))
600 {
601 /* PCCARD interrupt callback*/
602 HAL_PCCARD_ITCallback(hpccard);
603
604 /* Clear PCCARD interrupt FIFO empty pending bit */
605 __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT);
606 }
607
608 }
609
610 /**
611 * @brief PCCARD interrupt feature callback
612 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
613 * the configuration information for PCCARD module.
614 * @retval None
615 */
616 __weak void HAL_PCCARD_ITCallback(PCCARD_HandleTypeDef *hpccard)
617 {
618 /* NOTE : This function Should not be modified, when the callback is needed,
619 the HAL_PCCARD_ITCallback could be implemented in the user file
620 */
621 }
622
623 /**
624 * @}
625 */
626
627 /** @defgroup PCCARD_Exported_Functions_Group3 Peripheral State functions
628 * @brief Peripheral State functions
629 *
630 @verbatim
631 ==============================================================================
632 ##### PCCARD Peripheral State functions #####
633 ==============================================================================
634 [..]
635 This subsection permits to get in run-time the status of the PCCARD controller
636 and the data flow.
637
638 @endverbatim
639 * @{
640 */
641
642 /**
643 * @brief return the PCCARD controller state
644 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
645 * the configuration information for PCCARD module.
646 * @retval HAL state
647 */
648 HAL_PCCARD_StateTypeDef HAL_PCCARD_GetState(PCCARD_HandleTypeDef *hpccard)
649 {
650 return hpccard->State;
651 }
652
653 /**
654 * @brief Get the compact flash memory status
655 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
656 * the configuration information for PCCARD module.
657 * @retval New status of the CF operation. This parameter can be:
658 * - CompactFlash_TIMEOUT_ERROR: when the previous operation generate
659 * a Timeout error
660 * - CompactFlash_READY: when memory is ready for the next operation
661 *
662 */
663 HAL_PCCARD_StatusTypeDef HAL_PCCARD_GetStatus(PCCARD_HandleTypeDef *hpccard)
664 {
665 uint32_t timeout = PCCARD_TIMEOUT_STATUS, status_cf = 0;
666
667 /* Check the PCCARD controller state */
668 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
669 {
670 return HAL_PCCARD_STATUS_ONGOING;
671 }
672
673 status_cf = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
674
675 while((status_cf == PCCARD_BUSY) && timeout)
676 {
677 status_cf = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
678 timeout--;
679 }
680
681 if(timeout == 0)
682 {
683 status_cf = PCCARD_TIMEOUT_ERROR;
684 }
685
686 /* Return the operation status */
687 return (HAL_PCCARD_StatusTypeDef) status_cf;
688 }
689
690 /**
691 * @brief Reads the Compact Flash memory status using the Read status command
692 * @param hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
693 * the configuration information for PCCARD module.
694 * @retval The status of the Compact Flash memory. This parameter can be:
695 * - CompactFlash_BUSY: when memory is busy
696 * - CompactFlash_READY: when memory is ready for the next operation
697 * - CompactFlash_ERROR: when the previous operation gererates error
698 */
699 HAL_PCCARD_StatusTypeDef HAL_PCCARD_ReadStatus(PCCARD_HandleTypeDef *hpccard)
700 {
701 uint8_t data = 0, status_cf = PCCARD_BUSY;
702
703 /* Check the PCCARD controller state */
704 if(hpccard->State == HAL_PCCARD_STATE_BUSY)
705 {
706 return HAL_PCCARD_STATUS_ONGOING;
707 }
708
709 /* Read status operation */
710 data = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
711
712 if((data & PCCARD_TIMEOUT_ERROR) == PCCARD_TIMEOUT_ERROR)
713 {
714 status_cf = PCCARD_TIMEOUT_ERROR;
715 }
716 else if((data & PCCARD_READY) == PCCARD_READY)
717 {
718 status_cf = PCCARD_READY;
719 }
720
721 return (HAL_PCCARD_StatusTypeDef) status_cf;
722 }
723
724 /**
725 * @}
726 */
727
728 /**
729 * @}
730 */
731 /**
732 * @}
733 */
734
735 #endif /* STM32F101xE || STM32F103xE || STM32F101xG || STM32F103xG */
736 #endif /* HAL_PCCARD_MODULE_ENABLED */
737
738 /**
739 * @}
740 */
741
742 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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