28 static int sdio_send_ocr(struct sd_card *card, uint32_t ocr)  in sdio_send_ocr()  argument
38 	/* Send OCR5 to initialize card */  in sdio_send_ocr()
40 		ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdio_send_ocr()
43 				/* Just probing card, likely not SDIO */  in sdio_send_ocr()
49 			/* We are probing card, check number of IO functions */  in sdio_send_ocr()
50 			card->num_io = (cmd.response[0] & SDIO_OCR_IO_NUMBER)  in sdio_send_ocr()
52 			if ((card->num_io == 0) ||  in sdio_send_ocr()
55 					/* Card is not an SDIO card */  in sdio_send_ocr()
58 				/* Card is not a supported SD device */  in sdio_send_ocr()
61 			/* Card has IO present, return zero to  in sdio_send_ocr()
62 			 * indicate SDIO card  in sdio_send_ocr()
66 		/* Check to see if card is busy with power up */  in sdio_send_ocr()
75 		LOG_ERR("Card never left busy state");  in sdio_send_ocr()
79 	if (!card->host_props.is_spi) {  in sdio_send_ocr()
81 		card->ocr = cmd.response[0U];  in sdio_send_ocr()
86 static int sdio_io_rw_direct(struct sd_card *card,  in sdio_io_rw_direct()  argument
109 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdio_io_rw_direct()
114 		if (card->host_props.is_spi) {  in sdio_io_rw_direct()
124 static int sdio_io_rw_extended(struct sd_card *card,  in sdio_io_rw_extended()  argument
156 	return sdhc_request(card->sdhc, &cmd, &data);  in sdio_io_rw_extended()
178 	if ((func->card->cccr_flags & SDIO_SUPPORT_MULTIBLOCK) &&  in sdio_io_rw_extended_helper()
184 			ret = sdio_io_rw_extended(func->card, direction,  in sdio_io_rw_extended_helper()
202 		ret = sdio_io_rw_extended(func->card, direction, func->num,  in sdio_io_rw_extended_helper()
217  * Read card capability register to determine features card supports.
219 static int sdio_read_cccr(struct sd_card *card)  in sdio_read_cccr()  argument
225 	ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
235 	ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
240 	card->sd_version = (data & SDIO_CCCR_SD_SPEC_MASK) >> SDIO_CCCR_SD_SPEC_SHIFT;  in sdio_read_cccr()
242 	ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
247 	card->cccr_flags = 0;  in sdio_read_cccr()
249 		card->cccr_flags |= SDIO_SUPPORT_4BIT_LS_BUS;  in sdio_read_cccr()
252 		card->cccr_flags |= SDIO_SUPPORT_MULTIBLOCK;  in sdio_read_cccr()
256 		ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
262 			card->cccr_flags |= SDIO_SUPPORT_HS;  in sdio_read_cccr()
266 		(card->flags & SD_1800MV_FLAG)) {  in sdio_read_cccr()
268 		ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
273 		if (sdmmc_host_uhs(&card->host_props)) {  in sdio_read_cccr()
275 				card->cccr_flags |= SDIO_SUPPORT_SDR50;  in sdio_read_cccr()
278 				card->cccr_flags |= SDIO_SUPPORT_SDR104;  in sdio_read_cccr()
281 				card->cccr_flags |= SDIO_SUPPORT_DDR50;  in sdio_read_cccr()
285 		ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cccr()
290 		card->switch_caps.sd_drv_type = 0;  in sdio_read_cccr()
292 			card->switch_caps.sd_drv_type |= SD_DRIVER_TYPE_A;  in sdio_read_cccr()
295 			card->switch_caps.sd_drv_type |= SD_DRIVER_TYPE_C;  in sdio_read_cccr()
298 			card->switch_caps.sd_drv_type |= SD_DRIVER_TYPE_D;  in sdio_read_cccr()
339 	char *data = func->card->card_buffer;  in sdio_read_cis()
347 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cis()
357 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cis()
371 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cis()
391 				ret = sdio_io_rw_direct(func->card, SDIO_IO_READ,  in sdio_read_cis()
412 static int sdio_set_bus_width(struct sd_card *card, enum sdhc_bus_width width)  in sdio_set_bus_width()  argument
417 	ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_set_bus_width()
436 	ret = sdio_io_rw_direct(card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_set_bus_width()
441 	/* Card now has changed bus width. Change host bus width */  in sdio_set_bus_width()
442 	card->bus_io.bus_width = width;  in sdio_set_bus_width()
443 	ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdio_set_bus_width()
450 static inline void sdio_select_bus_speed(struct sd_card *card)  in sdio_select_bus_speed()  argument
452 	if (card->host_props.host_caps.sdr104_support &&  in sdio_select_bus_speed()
453 		(card->cccr_flags & SDIO_SUPPORT_SDR104)) {  in sdio_select_bus_speed()
454 		card->card_speed = SD_TIMING_SDR104;  in sdio_select_bus_speed()
455 		card->switch_caps.uhs_max_dtr = UHS_SDR104_MAX_DTR;  in sdio_select_bus_speed()
456 	} else if (card->host_props.host_caps.ddr50_support &&  in sdio_select_bus_speed()
457 		(card->cccr_flags & SDIO_SUPPORT_DDR50)) {  in sdio_select_bus_speed()
458 		card->card_speed = SD_TIMING_DDR50;  in sdio_select_bus_speed()
459 		card->switch_caps.uhs_max_dtr = UHS_DDR50_MAX_DTR;  in sdio_select_bus_speed()
460 	} else if (card->host_props.host_caps.sdr50_support &&  in sdio_select_bus_speed()
461 		(card->cccr_flags & SDIO_SUPPORT_SDR50)) {  in sdio_select_bus_speed()
462 		card->card_speed = SD_TIMING_SDR50;  in sdio_select_bus_speed()
463 		card->switch_caps.uhs_max_dtr = UHS_SDR50_MAX_DTR;  in sdio_select_bus_speed()
464 	} else if (card->host_props.host_caps.high_spd_support &&  in sdio_select_bus_speed()
465 		(card->cccr_flags & SDIO_SUPPORT_HS)) {  in sdio_select_bus_speed()
466 		card->card_speed = SD_TIMING_HIGH_SPEED;  in sdio_select_bus_speed()
467 		card->switch_caps.hs_max_dtr = HS_MAX_DTR;  in sdio_select_bus_speed()
469 		card->card_speed = SD_TIMING_DEFAULT;  in sdio_select_bus_speed()
473 /* Applies selected card bus speed to card and host */
474 static int sdio_set_bus_speed(struct sd_card *card)  in sdio_set_bus_speed()  argument
480 	switch (card->card_speed) {  in sdio_set_bus_speed()
483 		bus_clock = MIN(card->host_props.f_max, card->switch_caps.uhs_max_dtr);  in sdio_set_bus_speed()
488 		bus_clock = MIN(card->host_props.f_max, card->switch_caps.uhs_max_dtr);  in sdio_set_bus_speed()
493 		bus_clock = MIN(card->host_props.f_max, card->switch_caps.uhs_max_dtr);  in sdio_set_bus_speed()
498 		bus_clock = MIN(card->host_props.f_max, card->switch_caps.hs_max_dtr);  in sdio_set_bus_speed()
503 		bus_clock = MIN(card->host_props.f_max, MHZ(25));  in sdio_set_bus_speed()
512 	ret = sdio_io_rw_direct(card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_set_bus_speed()
522 		ret = sdio_io_rw_direct(card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_set_bus_speed()
529 		/* Don't error out, as card can still work */  in sdio_set_bus_speed()
532 		/* Set card bus clock and timing */  in sdio_set_bus_speed()
533 		card->bus_io.timing = timing;  in sdio_set_bus_speed()
534 		card->bus_io.clock = bus_clock;  in sdio_set_bus_speed()
535 		LOG_DBG("Setting bus clock to: %d", card->bus_io.clock);  in sdio_set_bus_speed()
536 		ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdio_set_bus_speed()
546  * Initialize an SDIO card for use with subsystem
548 int sdio_card_init(struct sd_card *card)  in sdio_card_init()  argument
553 	/* Probe card with SDIO OCR CM5 */  in sdio_card_init()
554 	ret = sdio_send_ocr(card, ocr_arg);  in sdio_card_init()
558 	/* Card responded to CMD5, type is SDIO */  in sdio_card_init()
559 	card->type = CARD_SDIO;  in sdio_card_init()
561 	if (card->host_props.host_caps.vol_300_support) {  in sdio_card_init()
566 		card->host_props.host_caps.vol_180_support) {  in sdio_card_init()
567 		/* See if the card also supports 1.8V */  in sdio_card_init()
570 	ret = sdio_send_ocr(card, ocr_arg);  in sdio_card_init()
574 	if (card->ocr & SD_OCR_SWITCH_18_ACCEPT_FLAG) {  in sdio_card_init()
575 		LOG_DBG("Card supports 1.8V signalling");  in sdio_card_init()
576 		card->flags |= SD_1800MV_FLAG;  in sdio_card_init()
579 	if (card->ocr & SD_OCR_VDD29_30FLAG) {  in sdio_card_init()
580 		card->flags |= SD_3000MV_FLAG;  in sdio_card_init()
583 	if (card->ocr & SDIO_OCR_MEM_PRESENT_FLAG) {  in sdio_card_init()
584 		card->flags |= SD_MEM_PRESENT_FLAG;  in sdio_card_init()
589 		 * If card and host support 1.8V, perform voltage switch sequence now.  in sdio_card_init()
592 		if ((card->flags & SD_1800MV_FLAG) &&  in sdio_card_init()
593 			(!card->host_props.is_spi) &&  in sdio_card_init()
594 			(card->host_props.host_caps.vol_180_support) &&  in sdio_card_init()
596 			ret = sdmmc_switch_voltage(card);  in sdio_card_init()
599 				card->host_props.host_caps.vol_180_support = false;  in sdio_card_init()
601 				 * The host or SD card may have already switched to  in sdio_card_init()
605 				card->status = CARD_ERROR;  in sdio_card_init()
609 		if ((card->flags & SD_MEM_PRESENT_FLAG) &&  in sdio_card_init()
610 			((card->flags & SD_SDHC_FLAG) == 0)) {  in sdio_card_init()
611 			/* We must send CMD2 to get card cid */  in sdio_card_init()
612 			ret = card_read_cid(card);  in sdio_card_init()
617 		/* Send CMD3 to get card relative address */  in sdio_card_init()
618 		ret = sdmmc_request_rca(card);  in sdio_card_init()
622 		/* Move the card to transfer state (with CMD7) to run  in sdio_card_init()
625 		ret = sdmmc_select_card(card);  in sdio_card_init()
630 	/* Read SDIO card common control register */  in sdio_card_init()
631 	ret = sdio_read_cccr(card);  in sdio_card_init()
635 	/* Initialize internal card function 0 structure */  in sdio_card_init()
636 	card->func0.num = SDIO_FUNC_NUM_0;  in sdio_card_init()
637 	card->func0.card = card;  in sdio_card_init()
638 	ret = sdio_read_cis(&card->func0, cis_tuples,  in sdio_card_init()
644 	/* If card and host support 4 bit bus, enable it */  in sdio_card_init()
646 		((card->cccr_flags & SDIO_SUPPORT_HS) ||  in sdio_card_init()
647 		(card->cccr_flags & SDIO_SUPPORT_4BIT_LS_BUS))) {  in sdio_card_init()
649 		ret = sdio_set_bus_width(card, SDHC_BUS_WIDTH4BIT);  in sdio_card_init()
653 		LOG_DBG("Raised card bus width to 4 bits");  in sdio_card_init()
657 	sdio_select_bus_speed(card);  in sdio_card_init()
658 	ret = sdio_set_bus_speed(card);  in sdio_card_init()
662 	if (card->card_speed == SD_TIMING_SDR50 ||  in sdio_card_init()
663 		card->card_speed == SD_TIMING_SDR104) {  in sdio_card_init()
665 		ret = sdhc_execute_tuning(card->sdhc);  in sdio_card_init()
676  * Initializes SDIO card function. The card function will not be enabled,
678  * and write data from the card.
680  * @param card: SD card to enable function on
685 int sdio_init_func(struct sd_card *card, struct sdio_func *func,  in sdio_init_func()  argument
690 	func->card = card;  in sdio_init_func()
701  * Enables SDIO card function. @ref sdio_init_func must be called to
702  * initialized the function structure before enabling it in the card.
705  * @retval -ETIMEDOUT: card I/O timed out
715 	ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_enable_func()
721 	ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_enable_func()
733 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ,  in sdio_enable_func()
766 		ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_set_block_size()
784  * @retval -EBUSY: card is busy with another request
785  * @retval -ETIMEDOUT: card read timed out
792 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_byte()
793 		LOG_WRN("Card does not support SDIO commands");  in sdio_read_byte()
796 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_byte()
798 		LOG_WRN("Could not get SD card mutex");  in sdio_read_byte()
801 	ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, func->num, reg, 0, val);  in sdio_read_byte()
802 	k_mutex_unlock(&func->card->lock);  in sdio_read_byte()
814  * @retval -EBUSY: card is busy with another request
815  * @retval -ETIMEDOUT: card write timed out
822 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_byte()
823 		LOG_WRN("Card does not support SDIO commands");  in sdio_write_byte()
826 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_byte()
828 		LOG_WRN("Could not get SD card mutex");  in sdio_write_byte()
831 	ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, func->num, reg,  in sdio_write_byte()
833 	k_mutex_unlock(&func->card->lock);  in sdio_write_byte()
846  * @retval -EBUSY: card is busy with another request
847  * @retval -ETIMEDOUT: card write timed out
855 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_rw_byte()
856 		LOG_WRN("Card does not support SDIO commands");  in sdio_rw_byte()
859 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_rw_byte()
861 		LOG_WRN("Could not get SD card mutex");  in sdio_rw_byte()
864 	ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, func->num, reg,  in sdio_rw_byte()
866 	k_mutex_unlock(&func->card->lock);  in sdio_rw_byte()
878  * @param len: length of data to read from card
880  * @retval -EBUSY: card is busy with another request
881  * @retval -ETIMEDOUT: card read timed out
889 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_fifo()
890 		LOG_WRN("Card does not support SDIO commands");  in sdio_read_fifo()
893 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_fifo()
895 		LOG_WRN("Could not get SD card mutex");  in sdio_read_fifo()
900 	k_mutex_unlock(&func->card->lock);  in sdio_read_fifo()
912  * @param len: length of data to write to card
914  * @retval -EBUSY: card is busy with another request
915  * @retval -ETIMEDOUT: card write timed out
923 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_fifo()
924 		LOG_WRN("Card does not support SDIO commands");  in sdio_write_fifo()
927 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_fifo()
929 		LOG_WRN("Could not get SD card mutex");  in sdio_write_fifo()
934 	k_mutex_unlock(&func->card->lock);  in sdio_write_fifo()
948  * @retval -EBUSY: card is busy with another request
949  * @retval -ETIMEDOUT: card read timed out
957 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_blocks_fifo()
958 		LOG_WRN("Card does not support SDIO commands");  in sdio_read_blocks_fifo()
961 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_blocks_fifo()
963 		LOG_WRN("Could not get SD card mutex");  in sdio_read_blocks_fifo()
966 	ret = sdio_io_rw_extended(func->card, SDIO_IO_READ, func->num, reg,  in sdio_read_blocks_fifo()
968 	k_mutex_unlock(&func->card->lock);  in sdio_read_blocks_fifo()
982  * @retval -EBUSY: card is busy with another request
983  * @retval -ETIMEDOUT: card write timed out
991 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_blocks_fifo()
992 		LOG_WRN("Card does not support SDIO commands");  in sdio_write_blocks_fifo()
995 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_blocks_fifo()
997 		LOG_WRN("Could not get SD card mutex");  in sdio_write_blocks_fifo()
1000 	ret = sdio_io_rw_extended(func->card, SDIO_IO_WRITE, func->num, reg,  in sdio_write_blocks_fifo()
1002 	k_mutex_unlock(&func->card->lock);  in sdio_write_blocks_fifo()
1007  * @brief Copy bytes from an SDIO card
1009  * Copies bytes from an SDIO card, starting from provided address.
1015  * @retval -EBUSY: card is busy with another request
1016  * @retval -ETIMEDOUT: card read timed out
1024 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_addr()
1025 		LOG_WRN("Card does not support SDIO commands");  in sdio_read_addr()
1028 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_addr()
1030 		LOG_WRN("Could not get SD card mutex");  in sdio_read_addr()
1035 	k_mutex_unlock(&func->card->lock);  in sdio_read_addr()
1040  * @brief Copy bytes to an SDIO card
1042  * Copies bytes to an SDIO card, starting from provided address.
1049  * @retval -EBUSY: card is busy with another request
1050  * @retval -ETIMEDOUT: card write timed out
1058 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_addr()
1059 		LOG_WRN("Card does not support SDIO commands");  in sdio_write_addr()
1062 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_addr()
1064 		LOG_WRN("Could not get SD card mutex");  in sdio_write_addr()
1069 	k_mutex_unlock(&func->card->lock);  in sdio_write_addr()