linux/drivers/mmc/core/sdio_irq.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * linux/drivers/mmc/core/sdio_irq.c
 *
 * Author:      Nicolas Pitre
 * Created:     June 18, 2007
 * Copyright:   MontaVista Software Inc.
 *
 * Copyright 2008 Pierre Ossman
 */

#include <linux/kernel.h>
#include <linux/sched.h>
#include <uapi/linux/sched/types.h>
#include <linux/kthread.h>
#include <linux/export.h>
#include <linux/wait.h>
#include <linux/delay.h>

#include <linux/mmc/core.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_func.h>

#include "sdio_ops.h"
#include "core.h"
#include "card.h"

static int sdio_get_pending_irqs(struct mmc_host *host, u8 *pending)
{ … }

static int process_sdio_pending_irqs(struct mmc_host *host)
{ … }

static void sdio_run_irqs(struct mmc_host *host)
{ … }

void sdio_irq_work(struct work_struct *work)
{ … }

void sdio_signal_irq(struct mmc_host *host)
{ … }
EXPORT_SYMBOL_GPL(…);

static int sdio_irq_thread(void *_host)
{ … }

static int sdio_card_irq_get(struct mmc_card *card)
{ … }

static int sdio_card_irq_put(struct mmc_card *card)
{ … }

/* If there is only 1 function registered set sdio_single_irq */
static void sdio_single_irq_set(struct mmc_card *card)
{ … }

/**
 *	sdio_claim_irq - claim the IRQ for a SDIO function
 *	@func: SDIO function
 *	@handler: IRQ handler callback
 *
 *	Claim and activate the IRQ for the given SDIO function. The provided
 *	handler will be called when that IRQ is asserted.  The host is always
 *	claimed already when the handler is called so the handler should not
 *	call sdio_claim_host() or sdio_release_host().
 */
int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler)
{ … }
EXPORT_SYMBOL_GPL(…);

/**
 *	sdio_release_irq - release the IRQ for a SDIO function
 *	@func: SDIO function
 *
 *	Disable and release the IRQ for the given SDIO function.
 */
int sdio_release_irq(struct sdio_func *func)
{ … }
EXPORT_SYMBOL_GPL(…);