1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  linux/drivers/mmc/core/sd_ops.h
5  *  Copyright 2006-2007 Pierre Ossman
13 #include <linux/mmc/host.h>
14 #include <linux/mmc/card.h>
15 #include <linux/mmc/mmc.h>
16 #include <linux/mmc/sd.h>
19 #include "card.h"
37 int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)  in mmc_app_cmd()  argument
42 	if (WARN_ON(card && card->host != host))  in mmc_app_cmd()
43 		return -EINVAL;  in mmc_app_cmd()
49 	if (host->uhs2_sd_tran) {  in mmc_app_cmd()
50 		host->uhs2_app_cmd = true;  in mmc_app_cmd()
56 	if (card) {  in mmc_app_cmd()
57 		cmd.arg = card->rca << 16;  in mmc_app_cmd()
68 	/* Check that card supported application commands */  in mmc_app_cmd()
70 		return -EOPNOTSUPP;  in mmc_app_cmd()
76 static int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,  in mmc_wait_for_app_cmd()  argument
80 	int i, err = -EIO;  in mmc_wait_for_app_cmd()
87 		err = mmc_app_cmd(host, card);  in mmc_wait_for_app_cmd()
91 				if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)  in mmc_wait_for_app_cmd()
99 		memset(cmd->resp, 0, sizeof(cmd->resp));  in mmc_wait_for_app_cmd()
100 		cmd->retries = 0;  in mmc_wait_for_app_cmd()
103 		cmd->data = NULL;  in mmc_wait_for_app_cmd()
107 		err = cmd->error;  in mmc_wait_for_app_cmd()
108 		if (!cmd->error)  in mmc_wait_for_app_cmd()
113 			if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)  in mmc_wait_for_app_cmd()
121 int mmc_app_set_bus_width(struct mmc_card *card, int width)  in mmc_app_set_bus_width()  argument
136 		return -EINVAL;  in mmc_app_set_bus_width()
139 	return mmc_wait_for_app_cmd(card->host, card, &cmd);  in mmc_app_set_bus_width()
145 	struct mmc_host *host = data->host;  in sd_app_op_cond_cb()
146 	struct mmc_command *cmd = data->cmd;  in sd_app_op_cond_cb()
147 	u32 ocr = data->ocr;  in sd_app_op_cond_cb()
162 		if (!(cmd->resp[0] & R1_SPI_IDLE))  in sd_app_op_cond_cb()
164 	} else if (cmd->resp[0] & MMC_CARD_BUSY) {  in sd_app_op_cond_cb()
209 	if (!mmc_card_ult_capacity(host->card))  in mmc_send_ext_addr()
242 		return -EIO;  in __mmc_send_if_cond()
261 	if (host->caps2 & MMC_CAP2_SD_EXP) {  in mmc_send_if_cond_pcie()
262 		/* Probe card for SD express support via PCIe. */  in mmc_send_if_cond_pcie()
264 		if (host->caps2 & MMC_CAP2_SD_EXP_1_2V)  in mmc_send_if_cond_pcie()
273 	/* Continue with the SD express init, if the card supports it. */  in mmc_send_if_cond_pcie()
277 			host->ios.timing = MMC_TIMING_SD_EXP_1_2V;  in mmc_send_if_cond_pcie()
279 			host->ios.timing = MMC_TIMING_SD_EXP;  in mmc_send_if_cond_pcie()
285 		return host->ops->init_sd_express(host, &host->ios);  in mmc_send_if_cond_pcie()
309 int mmc_app_send_scr(struct mmc_card *card)  in mmc_app_send_scr()  argument
318 	/* NOTE: caller guarantees scr is heap-allocated */  in mmc_app_send_scr()
320 	err = mmc_app_cmd(card->host, card);  in mmc_app_send_scr()
325 	 * routine normally provide temporary on-stack buffers ...  in mmc_app_send_scr()
327 	scr = kmalloc(sizeof(card->raw_scr), GFP_KERNEL);  in mmc_app_send_scr()
329 		return -ENOMEM;  in mmc_app_send_scr()
346 	mmc_set_data_timeout(&data, card);  in mmc_app_send_scr()
348 	mmc_wait_for_req(card->host, &mrq);  in mmc_app_send_scr()
350 	card->raw_scr[0] = be32_to_cpu(scr[0]);  in mmc_app_send_scr()
351 	card->raw_scr[1] = be32_to_cpu(scr[1]);  in mmc_app_send_scr()
363 int mmc_sd_switch(struct mmc_card *card, bool mode, int group,  in mmc_sd_switch()  argument
368 	/* NOTE: caller guarantees resp is heap-allocated */  in mmc_sd_switch()
375 	return mmc_send_adtc_data(card, card->host, SD_SWITCH, cmd_args, resp,  in mmc_sd_switch()
380 int mmc_app_sd_status(struct mmc_card *card, void *ssr)  in mmc_app_sd_status()  argument
388 	/* NOTE: caller guarantees ssr is heap-allocated */  in mmc_app_sd_status()
390 	err = mmc_app_cmd(card->host, card);  in mmc_app_sd_status()
409 	mmc_set_data_timeout(&data, card);  in mmc_app_sd_status()
411 	mmc_wait_for_req(card->host, &mrq);  in mmc_app_sd_status()