// SPDX-License-Identifier: GPL-2.0-or-later
/*
* linux/drivers/mmc/sdio.c
*
* Copyright 2006-2007 Pierre Ossman
*/
#include <linux/err.h>
#include <linux/pm_runtime.h>
#include <linux/sysfs.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include "core.h"
#include "card.h"
#include "host.h"
#include "bus.h"
#include "quirks.h"
#include "sd.h"
#include "sdio_bus.h"
#include "mmc_ops.h"
#include "sd_ops.h"
#include "sdio_ops.h"
#include "sdio_cis.h"
MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor);
MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device);
MMC_DEV_ATTR(revision, "%u.%u\n", card->major_rev, card->minor_rev);
MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
#define sdio_info_attr(num) \
static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct mmc_card *card = mmc_dev_to_card(dev); \
\
if (num > card->num_info) \
return -ENODATA; \
if (!card->info[num - 1][0]) \
return 0; \
return sysfs_emit(buf, "%s\n", card->info[num - 1]); \
} \
static DEVICE_ATTR_RO(info##num)
sdio_info_attr(1);
sdio_info_attr(2);
sdio_info_attr(3);
sdio_info_attr(4);
static struct attribute *sdio_std_attrs[] = {
&dev_attr_vendor.attr,
&dev_attr_device.attr,
&dev_attr_revision.attr,
&dev_attr_info1.attr,
&dev_attr_info2.attr,
&dev_attr_info3.attr,
&dev_attr_info4.attr,
&dev_attr_ocr.attr,
&dev_attr_rca.attr,
NULL,
};
ATTRIBUTE_GROUPS(sdio_std);
static const struct device_type sdio_type = {
.groups = sdio_std_groups,
};
static int sdio_read_fbr(struct sdio_func *func)
{
int ret;
unsigned char data;
if (mmc_card_nonstd_func_interface(func->card)) {
func->class = SDIO_CLASS_NONE;
return 0;
}
ret = mmc_io_rw_direct(func->card, 0, 0,
SDIO_FBR_BASE(func->num) + SDIO_FBR_STD_IF, 0, &data);
if (ret)
goto out;
data &= 0x0f;
if (data == 0x0f) {
ret = mmc_io_rw_direct(func->card, 0, 0,
SDIO_FBR_BASE(func->num) + SDIO_FBR_STD_IF_EXT, 0, &data<