LXR linux/drivers/mmc/core/core.h

   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_set_bus_mode(struct mmc_host *host, unsigned int mode);
  44void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
  45u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
  46int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr);
  47int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
  48void mmc_set_timing(struct mmc_host *host, unsigned int timing);
  49void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
  50int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
  51                              int card_drv_type, int *drv_type);
  52void mmc_power_up(struct mmc_host *host, u32 ocr);
  53void mmc_power_off(struct mmc_host *host);
  54void mmc_power_cycle(struct mmc_host *host, u32 ocr);
  55void mmc_set_initial_state(struct mmc_host *host);
  56
  57static inline void mmc_delay(unsigned int ms)
  58{
  59        if (ms < 1000 / HZ) {
  60                cond_resched();
  61                mdelay(ms);
  62        } else {
  63                msleep(ms);
  64        }
  65}
  66
  67void mmc_rescan(struct work_struct *work);
  68void mmc_start_host(struct mmc_host *host);
  69void mmc_stop_host(struct mmc_host *host);
  70
  71int _mmc_detect_card_removed(struct mmc_host *host);
  72
  73int mmc_attach_mmc(struct mmc_host *host);
  74int mmc_attach_sd(struct mmc_host *host);
  75int mmc_attach_sdio(struct mmc_host *host);
  76
  77/* Module parameters */
  78extern bool use_spi_crc;
  79
  80/* Debugfs information for hosts and cards */
  81void mmc_add_host_debugfs(struct mmc_host *host);
  82void mmc_remove_host_debugfs(struct mmc_host *host);
  83
  84void mmc_add_card_debugfs(struct mmc_card *card);
  85void mmc_remove_card_debugfs(struct mmc_card *card);
  86
  87void mmc_init_context_info(struct mmc_host *host);
  88
  89int mmc_execute_tuning(struct mmc_card *card);
  90int mmc_hs200_to_hs400(struct mmc_card *card);
  91int mmc_hs400_to_hs200(struct mmc_card *card);
  92
  93#ifdef CONFIG_PM_SLEEP
  94void mmc_register_pm_notifier(struct mmc_host *host);
  95void mmc_unregister_pm_notifier(struct mmc_host *host);
  96#else
  97static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
  98static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
  99#endif
 100
 101#endif
 102
 103