Release 4.11 drivers/mmc/core/core.h

/*
 *  linux/drivers/mmc/core/core.h
 *
 *  Copyright (C) 2003 Russell King, All Rights Reserved.
 *  Copyright 2007 Pierre Ossman
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef _MMC_CORE_CORE_H

#define _MMC_CORE_CORE_H

#include <linux/delay.h>
#include <linux/sched.h>

struct mmc_host;
struct mmc_card;
struct mmc_request;


#define MMC_CMD_RETRIES        3


struct mmc_bus_ops {
	
void (*remove)(struct mmc_host *);
	
void (*detect)(struct mmc_host *);
	
int (*pre_suspend)(struct mmc_host *);
	
int (*suspend)(struct mmc_host *);
	
int (*resume)(struct mmc_host *);
	
int (*runtime_suspend)(struct mmc_host *);
	
int (*runtime_resume)(struct mmc_host *);
	
int (*power_save)(struct mmc_host *);
	
int (*power_restore)(struct mmc_host *);
	
int (*alive)(struct mmc_host *);
	
int (*shutdown)(struct mmc_host *);
	
int (*reset)(struct mmc_host *);
};

void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
void mmc_detach_bus(struct mmc_host *host);

struct device_node *mmc_of_find_child_device(struct mmc_host *host,
		unsigned func_num);

void mmc_init_erase(struct mmc_card *card);

void mmc_set_chip_select(struct mmc_host *host, int mode);
void mmc_set_clock(struct mmc_host *host, unsigned int hz);
void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr);
int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
			      int card_drv_type, int *drv_type);
void mmc_power_up(struct mmc_host *host, u32 ocr);
void mmc_power_off(struct mmc_host *host);
void mmc_power_cycle(struct mmc_host *host, u32 ocr);
void mmc_set_initial_state(struct mmc_host *host);



static inline void mmc_delay(unsigned int ms)
{
	if (ms < 1000 / HZ) {
		cond_resched();
		mdelay(ms);
	} else {
		msleep(ms);
	}
}

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void mmc_rescan(struct work_struct *work);
void mmc_start_host(struct mmc_host *host);
void mmc_stop_host(struct mmc_host *host);

int _mmc_detect_card_removed(struct mmc_host *host);
int mmc_detect_card_removed(struct mmc_host *host);

int mmc_attach_mmc(struct mmc_host *host);
int mmc_attach_sd(struct mmc_host *host);
int mmc_attach_sdio(struct mmc_host *host);

/* Module parameters */
extern bool use_spi_crc;

/* Debugfs information for hosts and cards */
void mmc_add_host_debugfs(struct mmc_host *host);
void mmc_remove_host_debugfs(struct mmc_host *host);

void mmc_add_card_debugfs(struct mmc_card *card);
void mmc_remove_card_debugfs(struct mmc_card *card);

void mmc_init_context_info(struct mmc_host *host);

int mmc_execute_tuning(struct mmc_card *card);
int mmc_hs200_to_hs400(struct mmc_card *card);
int mmc_hs400_to_hs200(struct mmc_card *card);

#ifdef CONFIG_PM_SLEEP
void mmc_register_pm_notifier(struct mmc_host *host);
void mmc_unregister_pm_notifier(struct mmc_host *host);
#else


static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
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static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
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#endif

void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq);
bool mmc_is_req_done(struct mmc_host *host, struct mmc_request *mrq);

int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
		unsigned int arg);
int mmc_can_erase(struct mmc_card *card);
int mmc_can_trim(struct mmc_card *card);
int mmc_can_discard(struct mmc_card *card);
int mmc_can_sanitize(struct mmc_card *card);
int mmc_can_secure_erase_trim(struct mmc_card *card);
int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
			unsigned int nr);
unsigned int mmc_calc_max_discard(struct mmc_card *card);

int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount,
			bool is_rel_write);

int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
void mmc_release_host(struct mmc_host *host);
void mmc_get_card(struct mmc_card *card);
void mmc_put_card(struct mmc_card *card);

/**
 *      mmc_claim_host - exclusively claim a host
 *      @host: mmc host to claim
 *
 *      Claim a host for a set of operations.
 */


static inline void mmc_claim_host(struct mmc_host *host)
{
	__mmc_claim_host(host, NULL);
}

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#endif
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Directory: drivers/mmc/core

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