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
18struct mmc_bus_ops {
19	void (*remove)(struct mmc_host *);
20	void (*detect)(struct mmc_host *);
21	int (*pre_suspend)(struct mmc_host *);
22	int (*suspend)(struct mmc_host *);
23	int (*resume)(struct mmc_host *);
24	int (*runtime_suspend)(struct mmc_host *);
25	int (*runtime_resume)(struct mmc_host *);
26	int (*power_save)(struct mmc_host *);
27	int (*power_restore)(struct mmc_host *);
28	int (*alive)(struct mmc_host *);
29	int (*shutdown)(struct mmc_host *);
30	int (*reset)(struct mmc_host *);
31};
32
33void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
34void mmc_detach_bus(struct mmc_host *host);
35
36struct device_node *mmc_of_find_child_device(struct mmc_host *host,
37		unsigned func_num);
38
39void mmc_init_erase(struct mmc_card *card);
40
41void mmc_set_chip_select(struct mmc_host *host, int mode);
42void mmc_set_clock(struct mmc_host *host, unsigned int hz);
43void mmc_gate_clock(struct mmc_host *host);
44void mmc_ungate_clock(struct mmc_host *host);
45void mmc_set_ungated(struct mmc_host *host);
46void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
47void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
48u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
49int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr);
50int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
51void mmc_set_timing(struct mmc_host *host, unsigned int timing);
52void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
53void mmc_power_up(struct mmc_host *host, u32 ocr);
54void mmc_power_off(struct mmc_host *host);
55void mmc_power_cycle(struct mmc_host *host, u32 ocr);
56void mmc_set_initial_state(struct mmc_host *host);
57
58static inline void mmc_delay(unsigned int ms)
59{
60	if (ms < 1000 / HZ) {
61		cond_resched();
62		mdelay(ms);
63	} else {
64		msleep(ms);
65	}
66}
67
68void mmc_rescan(struct work_struct *work);
69void mmc_start_host(struct mmc_host *host);
70void mmc_stop_host(struct mmc_host *host);
71
72int _mmc_detect_card_removed(struct mmc_host *host);
73
74int mmc_attach_mmc(struct mmc_host *host);
75int mmc_attach_sd(struct mmc_host *host);
76int mmc_attach_sdio(struct mmc_host *host);
77
78/* Module parameters */
79extern bool use_spi_crc;
80
81/* Debugfs information for hosts and cards */
82void mmc_add_host_debugfs(struct mmc_host *host);
83void mmc_remove_host_debugfs(struct mmc_host *host);
84
85void mmc_add_card_debugfs(struct mmc_card *card);
86void mmc_remove_card_debugfs(struct mmc_card *card);
87
88void mmc_init_context_info(struct mmc_host *host);
89
90int mmc_execute_tuning(struct mmc_card *card);
91
92#endif
93
94