Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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 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 int (*power_save)(struct mmc_host *);
26 int (*power_restore)(struct mmc_host *);
27 int (*alive)(struct mmc_host *);
28};
29
30void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
31void mmc_detach_bus(struct mmc_host *host);
32
33void mmc_init_erase(struct mmc_card *card);
34
35void mmc_set_chip_select(struct mmc_host *host, int mode);
36void mmc_set_clock(struct mmc_host *host, unsigned int hz);
37void mmc_gate_clock(struct mmc_host *host);
38void mmc_ungate_clock(struct mmc_host *host);
39void mmc_set_ungated(struct mmc_host *host);
40void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
41void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
42u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
43int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage,
44 bool cmd11);
45void mmc_set_timing(struct mmc_host *host, unsigned int timing);
46void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
47void mmc_power_off(struct mmc_host *host);
48
49static inline void mmc_delay(unsigned int ms)
50{
51 if (ms < 1000 / HZ) {
52 cond_resched();
53 mdelay(ms);
54 } else {
55 msleep(ms);
56 }
57}
58
59void mmc_rescan(struct work_struct *work);
60void mmc_start_host(struct mmc_host *host);
61void mmc_stop_host(struct mmc_host *host);
62
63int _mmc_detect_card_removed(struct mmc_host *host);
64
65int mmc_attach_mmc(struct mmc_host *host);
66int mmc_attach_sd(struct mmc_host *host);
67int mmc_attach_sdio(struct mmc_host *host);
68
69/* Module parameters */
70extern bool use_spi_crc;
71
72/* Debugfs information for hosts and cards */
73void mmc_add_host_debugfs(struct mmc_host *host);
74void mmc_remove_host_debugfs(struct mmc_host *host);
75
76void mmc_add_card_debugfs(struct mmc_card *card);
77void mmc_remove_card_debugfs(struct mmc_card *card);
78
79#endif
80