core.h 637 字节
Newer Older
L
Linus Torvalds 已提交
1
/*
2
 *  linux/drivers/mmc/core/core.h
L
Linus Torvalds 已提交
3 4
 *
 *  Copyright (C) 2003 Russell King, All Rights Reserved.
P
Pierre Ossman 已提交
5
 *  Copyright 2007 Pierre Ossman
L
Linus Torvalds 已提交
6 7 8 9 10
 *
 * 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.
 */
P
Pierre Ossman 已提交
11 12
#ifndef _MMC_CORE_CORE_H
#define _MMC_CORE_CORE_H
R
Russell King 已提交
13

P
Pierre Ossman 已提交
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
#include <linux/delay.h>

#define MMC_CMD_RETRIES        3

void mmc_set_chip_select(struct mmc_host *host, int mode);

static inline void mmc_delay(unsigned int ms)
{
	if (ms < 1000 / HZ) {
		cond_resched();
		mdelay(ms);
	} else {
		msleep(ms);
	}
}
P
Pierre Ossman 已提交
29

L
Linus Torvalds 已提交
30
#endif
P
Pierre Ossman 已提交
31