2  * Copyright 2022-2023 NXP
4  * SPDX-License-Identifier: Apache-2.0
40 		ret = sdhc_request(card->sdhc, &cmd, NULL);  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()
59 				return -ENOTSUP;  in sdio_send_ocr()
76 		return -ETIMEDOUT;  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()
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()
156 	return sdhc_request(card->sdhc, &cmd, &data);  in sdio_io_rw_extended()
160  * Helper for extended r/w. Splits the transfer into the minimum possible
174 	if (func->num > SDIO_MAX_IO_NUMS) {  in sdio_io_rw_extended_helper()
175 		return -EINVAL;  in sdio_io_rw_extended_helper()
178 	if ((func->card->cccr_flags & SDIO_SUPPORT_MULTIBLOCK) &&  in sdio_io_rw_extended_helper()
179 		((len > func->block_size))) {  in sdio_io_rw_extended_helper()
181 		while (remaining >= func->block_size) {  in sdio_io_rw_extended_helper()
182 			blocks = remaining / func->block_size;  in sdio_io_rw_extended_helper()
183 			size = blocks * func->block_size;  in sdio_io_rw_extended_helper()
184 			ret = sdio_io_rw_extended(func->card, direction,  in sdio_io_rw_extended_helper()
185 				func->num, reg_addr, increment, buf, blocks,  in sdio_io_rw_extended_helper()
186 				func->block_size);  in sdio_io_rw_extended_helper()
191 			remaining -= size;  in sdio_io_rw_extended_helper()
200 		size = MIN(remaining, func->cis.max_blk_size);  in sdio_io_rw_extended_helper()
202 		ret = sdio_io_rw_extended(func->card, direction, func->num,  in sdio_io_rw_extended_helper()
207 		remaining -= size;  in sdio_io_rw_extended_helper()
240 	card->sd_version = (data & SDIO_CCCR_SD_SPEC_MASK) >> SDIO_CCCR_SD_SPEC_SHIFT;  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()
262 			card->cccr_flags |= SDIO_SUPPORT_HS;  in sdio_read_cccr()
266 		(card->flags & SD_1800MV_FLAG)) {  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()
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()
309 		cis->manf_id = data[0] | ((uint16_t)data[1] << 8);  in sdio_decode_cis()
310 		cis->manf_code = data[2] | ((uint16_t)data[3] << 8);  in sdio_decode_cis()
313 		cis->func_id = data[0];  in sdio_decode_cis()
317 			cis->max_blk_size = data[1] | ((uint16_t)data[2] << 8);  in sdio_decode_cis()
318 			cis->max_speed = data[3];  in sdio_decode_cis()
320 			cis->max_blk_size = data[12] | ((uint16_t)data[13] << 8);  in sdio_decode_cis()
321 			cis->rdy_timeout = data[28] | ((uint16_t)data[29] << 8);  in sdio_decode_cis()
339 	char *data = func->card->card_buffer;  in sdio_read_cis()
340 	uint32_t cis_ptr = 0, num = 0;  in sdio_read_cis()  local
344 	memset(&func->cis, 0, sizeof(struct sdio_cis));  in sdio_read_cis()
347 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_read_cis()
348 			SDIO_FBR_BASE(func->num) + SDIO_FBR_CIS + i, 0, data);  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()
397 			num++;  in sdio_read_cis()
400 			sdio_decode_cis(&func->cis, func->num, data,  in sdio_read_cis()
406 	} while (num < tuple_count);  in sdio_read_cis()
407 	LOG_DBG("SDIO CIS max block size for func %d: %d", func->num,  in sdio_read_cis()
408 		func->cis.max_blk_size);  in sdio_read_cis()
434 		return -ENOTSUP;  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()
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()
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()
527 	} while (((speed_reg & target_speed) != target_speed) && retries-- > 0);  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()
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()
574 	if (card->ocr & SD_OCR_SWITCH_18_ACCEPT_FLAG) {  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()
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()
599 				card->host_props.host_caps.vol_180_support = false;  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()
622 		/* Move the card to transfer state (with CMD7) to run  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()
646 		((card->cccr_flags & SDIO_SUPPORT_HS) ||  in sdio_card_init()
647 		(card->cccr_flags & SDIO_SUPPORT_4BIT_LS_BUS))) {  in sdio_card_init()
648 		/* Raise bus width to 4 bits */  in sdio_card_init()
653 		LOG_DBG("Raised card bus width to 4 bits");  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()
681  * @param num: function number to initialize
683  * @retval -EIO: I/O error
686 		   enum sdio_func_num num)  in sdio_init_func()  argument
689 	func->num = num;  in sdio_init_func()
690 	func->card = card;  in sdio_init_func()
691 	func->block_size = 0;  in sdio_init_func()
705  * @retval -ETIMEDOUT: card I/O timed out
706  * @retval -EIO: I/O error
715 	ret = sdio_io_rw_direct(func->card, SDIO_IO_READ, SDIO_FUNC_NUM_0,  in sdio_enable_func()
720 	reg |= BIT(func->num);  in sdio_enable_func()
721 	ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_enable_func()
727 	if (func->cis.rdy_timeout) {  in sdio_enable_func()
732 		sd_delay(((uint32_t)func->cis.rdy_timeout) * 10U);  in sdio_enable_func()
733 		ret = sdio_io_rw_direct(func->card, SDIO_IO_READ,  in sdio_enable_func()
738 		if (reg & BIT(func->num)) {  in sdio_enable_func()
741 	} while (retries-- != 0);  in sdio_enable_func()
742 	return -ETIMEDOUT;  in sdio_enable_func()
753  * @retval -EINVAL: unsupported/invalid block size
754  * @retval -EIO: I/O error
761 	if (func->cis.max_blk_size < bsize) {  in sdio_set_block_size()
762 		return -EINVAL;  in sdio_set_block_size()
766 		ret = sdio_io_rw_direct(func->card, SDIO_IO_WRITE, SDIO_FUNC_NUM_0,  in sdio_set_block_size()
767 			SDIO_FBR_BASE(func->num) + SDIO_FBR_BLK_SIZE + i, reg, NULL);  in sdio_set_block_size()
772 	func->block_size = bsize;  in sdio_set_block_size()
784  * @retval -EBUSY: card is busy with another request
785  * @retval -ETIMEDOUT: card read timed out
786  * @retval -EIO: I/O error
792 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_byte()
794 		return -ENOTSUP;  in sdio_read_byte()
796 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_byte()
799 		return -EBUSY;  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
816  * @retval -EIO: I/O error
822 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_byte()
824 		return -ENOTSUP;  in sdio_write_byte()
826 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_byte()
829 		return -EBUSY;  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
848  * @retval -EIO: I/O error
855 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_rw_byte()
857 		return -ENOTSUP;  in sdio_rw_byte()
859 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_rw_byte()
862 		return -EBUSY;  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()
880  * @retval -EBUSY: card is busy with another request
881  * @retval -ETIMEDOUT: card read timed out
882  * @retval -EIO: I/O error
889 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_fifo()
891 		return -ENOTSUP;  in sdio_read_fifo()
893 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_fifo()
896 		return -EBUSY;  in sdio_read_fifo()
900 	k_mutex_unlock(&func->card->lock);  in sdio_read_fifo()
914  * @retval -EBUSY: card is busy with another request
915  * @retval -ETIMEDOUT: card write timed out
916  * @retval -EIO: I/O error
923 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_fifo()
925 		return -ENOTSUP;  in sdio_write_fifo()
927 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_fifo()
930 		return -EBUSY;  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
950  * @retval -EIO: I/O error
957 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_blocks_fifo()
959 		return -ENOTSUP;  in sdio_read_blocks_fifo()
961 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_blocks_fifo()
964 		return -EBUSY;  in sdio_read_blocks_fifo()
966 	ret = sdio_io_rw_extended(func->card, SDIO_IO_READ, func->num, reg,  in sdio_read_blocks_fifo()
967 		false, data, blocks, func->block_size);  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
984  * @retval -EIO: I/O error
991 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_blocks_fifo()
993 		return -ENOTSUP;  in sdio_write_blocks_fifo()
995 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_blocks_fifo()
998 		return -EBUSY;  in sdio_write_blocks_fifo()
1000 	ret = sdio_io_rw_extended(func->card, SDIO_IO_WRITE, func->num, reg,  in sdio_write_blocks_fifo()
1001 		false, data, blocks, func->block_size);  in sdio_write_blocks_fifo()
1002 	k_mutex_unlock(&func->card->lock);  in sdio_write_blocks_fifo()
1015  * @retval -EBUSY: card is busy with another request
1016  * @retval -ETIMEDOUT: card read timed out
1017  * @retval -EIO: I/O error
1024 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_read_addr()
1026 		return -ENOTSUP;  in sdio_read_addr()
1028 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_read_addr()
1031 		return -EBUSY;  in sdio_read_addr()
1035 	k_mutex_unlock(&func->card->lock);  in sdio_read_addr()
1049  * @retval -EBUSY: card is busy with another request
1050  * @retval -ETIMEDOUT: card write timed out
1051  * @retval -EIO: I/O error
1058 	if ((func->card->type != CARD_SDIO) && (func->card->type != CARD_COMBO)) {  in sdio_write_addr()
1060 		return -ENOTSUP;  in sdio_write_addr()
1062 	ret = k_mutex_lock(&func->card->lock, K_MSEC(CONFIG_SD_DATA_TIMEOUT));  in sdio_write_addr()
1065 		return -EBUSY;  in sdio_write_addr()
1069 	k_mutex_unlock(&func->card->lock);  in sdio_write_addr()