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