1 /*
2 * linux/drivers/mmc/core/core.h
3 *
4 * Copyright (C) 2003 Russell King, All Rights Reserved.
5 * Copyright 2007 Pierre Ossman
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11 #ifndef _MMC_CORE_CORE_H
12 #define _MMC_CORE_CORE_H
13
14 #include <linux/delay.h>
15
16 #define MMC_CMD_RETRIES 3
17
18 struct mmc_bus_ops {
19 void (*remove)(struct mmc_host *);
20 void (*detect)(struct mmc_host *);
21 void (*suspend)(struct mmc_host *);
22 void (*resume)(struct mmc_host *);
23 };
24
25 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
26 void mmc_detach_bus(struct mmc_host *host);
27
28 void mmc_set_chip_select(struct mmc_host *host, int mode);
29 void mmc_set_clock(struct mmc_host *host, unsigned int hz);
30 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
31 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
32 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
33 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
34
35 static inline void mmc_delay(unsigned int ms)
36 {
37 if (ms < 1000 / HZ) {
38 cond_resched();
39 mdelay(ms);
40 } else {
41 msleep(ms);
42 }
43 }
44
45 void mmc_rescan(struct work_struct *work);
46 void mmc_start_host(struct mmc_host *host);
47 void mmc_stop_host(struct mmc_host *host);
48
49 extern int use_spi_crc;
50
51 #endif
52
53
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