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