1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/fault-inject.h>
17 #include <linux/mmc/card.h>
18 #include <linux/mmc/host.h>
19 #include <linux/mmc/mmc.h>
20 #include <linux/mmc/sd.h>
23 #include "card.h"
58 	struct mmc_host	*host = s->private;  in mmc_ios_show()
59 	struct mmc_ios	*ios = &host->ios;  in mmc_ios_show()
62 	seq_printf(s, "clock:\t\t%u Hz\n", ios->clock);  in mmc_ios_show()
63 	if (host->actual_clock)  in mmc_ios_show()
64 		seq_printf(s, "actual clock:\t%u Hz\n", host->actual_clock);  in mmc_ios_show()
65 	seq_printf(s, "vdd:\t\t%u ", ios->vdd);  in mmc_ios_show()
66 	if ((1 << ios->vdd) & MMC_VDD_165_195)  in mmc_ios_show()
67 		seq_printf(s, "(1.65 - 1.95 V)\n");  in mmc_ios_show()
68 	else if (ios->vdd < (ARRAY_SIZE(vdd_str) - 1)  in mmc_ios_show()
69 			&& vdd_str[ios->vdd] && vdd_str[ios->vdd + 1])  in mmc_ios_show()
70 		seq_printf(s, "(%s ~ %s V)\n", vdd_str[ios->vdd],  in mmc_ios_show()
71 				vdd_str[ios->vdd + 1]);  in mmc_ios_show()
75 	switch (ios->bus_mode) {  in mmc_ios_show()
80 		str = "push-pull";  in mmc_ios_show()
86 	seq_printf(s, "bus mode:\t%u (%s)\n", ios->bus_mode, str);  in mmc_ios_show()
88 	switch (ios->chip_select) {  in mmc_ios_show()
102 	seq_printf(s, "chip select:\t%u (%s)\n", ios->chip_select, str);  in mmc_ios_show()
104 	switch (ios->power_mode) {  in mmc_ios_show()
118 	seq_printf(s, "power mode:\t%u (%s)\n", ios->power_mode, str);  in mmc_ios_show()
120 			ios->bus_width, 1 << ios->bus_width);  in mmc_ios_show()
122 	switch (ios->timing) {  in mmc_ios_show()
127 		str = "mmc high-speed";  in mmc_ios_show()
130 		str = "sd high-speed";  in mmc_ios_show()
148 		str = "mmc DDR52";  in mmc_ios_show()
151 		str = "mmc HS200";  in mmc_ios_show()
154 		str = mmc_card_hs400es(host->card) ?  in mmc_ios_show()
155 			"mmc HS400 enhanced strobe" : "mmc HS400";  in mmc_ios_show()
161 	seq_printf(s, "timing spec:\t%u (%s)\n", ios->timing, str);  in mmc_ios_show()
163 	switch (ios->signal_voltage) {  in mmc_ios_show()
177 	seq_printf(s, "signal voltage:\t%u (%s)\n", ios->signal_voltage, str);  in mmc_ios_show()
179 	switch (ios->drv_type) {  in mmc_ios_show()
196 	seq_printf(s, "driver type:\t%u (%s)\n", ios->drv_type, str);  in mmc_ios_show()
206 	*val = host->ios.clock;  in mmc_clock_opt_get()
216 	if (val != 0 && (val > host->f_max || val < host->f_min))  in mmc_clock_opt_set()
217 		return -EINVAL;  in mmc_clock_opt_set()
235 		return -EINVAL;  in mmc_err_state_get()
239 		if (host->err_stats[i]) {  in mmc_err_state_get()
252 	struct mmc_host *host = file->private;  in mmc_err_stats_show()
258 		[MMC_ERR_AUTO_CMD] = "Auto-Cmd Error Occurred",  in mmc_err_stats_show()
275 					desc[i], host->err_stats[i]);  in mmc_err_stats_show()
283 	return single_open(file, mmc_err_stats_show, inode->i_private);  in mmc_err_stats_open()
289 	struct mmc_host *host = filp->f_mapping->host->i_private;  in mmc_err_stats_write()
291 	pr_debug("%s: Resetting MMC error statistics\n", __func__);  in mmc_err_stats_write()
292 	memset(host->err_stats, 0, sizeof(host->err_stats));  in mmc_err_stats_write()
321 		return -EINVAL;  in mmc_caps_set()
335 		return -EINVAL;  in mmc_caps2_set()
352 	host->debugfs_root = root;  in mmc_add_host_debugfs()
355 	debugfs_create_file("caps", 0600, root, &host->caps, &mmc_caps_fops);  in mmc_add_host_debugfs()
356 	debugfs_create_file("caps2", 0600, root, &host->caps2,  in mmc_add_host_debugfs()
369 	host->fail_mmc_request = fail_default_attr;  in mmc_add_host_debugfs()
371 				  &host->fail_mmc_request);  in mmc_add_host_debugfs()
377 	debugfs_remove_recursive(host->debugfs_root);  in mmc_remove_host_debugfs()
380 void mmc_add_card_debugfs(struct mmc_card *card)  in mmc_add_card_debugfs()  argument
382 	struct mmc_host	*host = card->host;  in mmc_add_card_debugfs()
385 	if (!host->debugfs_root)  in mmc_add_card_debugfs()
388 	root = debugfs_create_dir(mmc_card_id(card), host->debugfs_root);  in mmc_add_card_debugfs()
389 	card->debugfs_root = root;  in mmc_add_card_debugfs()
391 	debugfs_create_x32("state", 0400, root, &card->state);  in mmc_add_card_debugfs()
392 	debugfs_create_x32("quirks", 0400, root, &card->quirks);  in mmc_add_card_debugfs()
395 void mmc_remove_card_debugfs(struct mmc_card *card)  in mmc_remove_card_debugfs()  argument
397 	debugfs_remove_recursive(card->debugfs_root);  in mmc_remove_card_debugfs()
398 	card->debugfs_root = NULL;  in mmc_remove_card_debugfs()