Line data Source code
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 : int (*awake)(struct mmc_host *);
20 : int (*sleep)(struct mmc_host *);
21 : void (*remove)(struct mmc_host *);
22 : void (*detect)(struct mmc_host *);
23 : int (*suspend)(struct mmc_host *);
24 : int (*resume)(struct mmc_host *);
25 : void (*power_save)(struct mmc_host *);
26 : void (*power_restore)(struct mmc_host *);
27 : };
28 :
29 : void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
30 : void mmc_detach_bus(struct mmc_host *host);
31 :
32 : void mmc_set_chip_select(struct mmc_host *host, int mode);
33 : void mmc_set_clock(struct mmc_host *host, unsigned int hz);
34 : void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
35 : void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
36 : u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
37 : void mmc_set_timing(struct mmc_host *host, unsigned int timing);
38 :
39 : static inline void mmc_delay(unsigned int ms)
40 : {
41 51 : if (ms < 1000 / HZ) {
42 68 : cond_resched();
43 119 : mdelay(ms);
44 17 : } else {
45 51 : msleep(ms);
46 34 : }
47 : }
48 :
49 : void mmc_rescan(struct work_struct *work);
50 : void mmc_start_host(struct mmc_host *host);
51 : void mmc_stop_host(struct mmc_host *host);
52 :
53 : int mmc_attach_mmc(struct mmc_host *host, u32 ocr);
54 : int mmc_attach_sd(struct mmc_host *host, u32 ocr);
55 : int mmc_attach_sdio(struct mmc_host *host, u32 ocr);
56 :
57 : /* Module parameters */
58 1 : extern int use_spi_crc;
59 1 : extern int mmc_assume_removable;
60 :
61 : /* Debugfs information for hosts and cards */
62 : void mmc_add_host_debugfs(struct mmc_host *host);
63 : void mmc_remove_host_debugfs(struct mmc_host *host);
64 :
65 : void mmc_add_card_debugfs(struct mmc_card *card);
66 : void mmc_remove_card_debugfs(struct mmc_card *card);
67 :
68 : #endif
69 :
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