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>
21 int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)  in mmc_app_cmd()  argument
26 	if (WARN_ON(card && card->host != host))  in mmc_app_cmd()
27 		return -EINVAL;  in mmc_app_cmd()
31 	if (card) {  in mmc_app_cmd()
32 		cmd.arg = card->rca << 16;  in mmc_app_cmd()
43 	/* Check that card supported application commands */  in mmc_app_cmd()
45 		return -EOPNOTSUPP;  in mmc_app_cmd()
51 static int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,  in mmc_wait_for_app_cmd()  argument
55 	int i, err = -EIO;  in mmc_wait_for_app_cmd()
62 		err = mmc_app_cmd(host, card);  in mmc_wait_for_app_cmd()
66 				if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)  in mmc_wait_for_app_cmd()
74 		memset(cmd->resp, 0, sizeof(cmd->resp));  in mmc_wait_for_app_cmd()
75 		cmd->retries = 0;  in mmc_wait_for_app_cmd()
78 		cmd->data = NULL;  in mmc_wait_for_app_cmd()
82 		err = cmd->error;  in mmc_wait_for_app_cmd()
83 		if (!cmd->error)  in mmc_wait_for_app_cmd()
88 			if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)  in mmc_wait_for_app_cmd()
96 int mmc_app_set_bus_width(struct mmc_card *card, int width)  in mmc_app_set_bus_width()  argument
111 		return -EINVAL;  in mmc_app_set_bus_width()
114 	return mmc_wait_for_app_cmd(card->host, card, &cmd);  in mmc_app_set_bus_width()
129 	for (i = 100; i; i--) {  in mmc_send_app_op_cond()
147 		err = -ETIMEDOUT;  in mmc_send_app_op_cond()
153 		pr_err("%s: card never left busy state\n", mmc_hostname(host));  in mmc_send_app_op_cond()
187 		return -EIO;  in mmc_send_if_cond()
210 int mmc_app_send_scr(struct mmc_card *card)  in mmc_app_send_scr()  argument
219 	/* NOTE: caller guarantees scr is heap-allocated */  in mmc_app_send_scr()
221 	err = mmc_app_cmd(card->host, card);  in mmc_app_send_scr()
226 	 * routine normally provide temporary on-stack buffers ...  in mmc_app_send_scr()
228 	scr = kmalloc(sizeof(card->raw_scr), GFP_KERNEL);  in mmc_app_send_scr()
230 		return -ENOMEM;  in mmc_app_send_scr()
247 	mmc_set_data_timeout(&data, card);  in mmc_app_send_scr()
249 	mmc_wait_for_req(card->host, &mrq);  in mmc_app_send_scr()
251 	card->raw_scr[0] = be32_to_cpu(scr[0]);  in mmc_app_send_scr()
252 	card->raw_scr[1] = be32_to_cpu(scr[1]);  in mmc_app_send_scr()
264 int mmc_sd_switch(struct mmc_card *card, int mode, int group,  in mmc_sd_switch()  argument
272 	/* NOTE: caller guarantees resp is heap-allocated */  in mmc_sd_switch()
294 	mmc_set_data_timeout(&data, card);  in mmc_sd_switch()
296 	mmc_wait_for_req(card->host, &mrq);  in mmc_sd_switch()
306 int mmc_app_sd_status(struct mmc_card *card, void *ssr)  in mmc_app_sd_status()  argument
314 	/* NOTE: caller guarantees ssr is heap-allocated */  in mmc_app_sd_status()
316 	err = mmc_app_cmd(card->host, card);  in mmc_app_sd_status()
335 	mmc_set_data_timeout(&data, card);  in mmc_app_sd_status()
337 	mmc_wait_for_req(card->host, &mrq);  in mmc_app_sd_status()