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
  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         int (*reset)(struct mmc_host *);
  31 };
  32
  33 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
  34 void mmc_detach_bus(struct mmc_host *host);
  35
  36 struct device_node *mmc_of_find_child_device(struct mmc_host *host,
  37                 unsigned func_num);
  38
  39 void mmc_init_erase(struct mmc_card *card);
  40
  41 void mmc_set_chip_select(struct mmc_host *host, int mode);
  42 void mmc_set_clock(struct mmc_host *host, unsigned int hz);
  43 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
  44 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
  45 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
  46 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr);
  47 int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
  48 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
  49 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
  50 int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
  51                               int card_drv_type, 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 void mmc_set_initial_state(struct mmc_host *host);
  56
  57 static 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
  67 void mmc_rescan(struct work_struct *work);
  68 void mmc_start_host(struct mmc_host *host);
  69 void mmc_stop_host(struct mmc_host *host);
  70
  71 int _mmc_detect_card_removed(struct mmc_host *host);
  72
  73 int mmc_attach_mmc(struct mmc_host *host);
  74 int mmc_attach_sd(struct mmc_host *host);
  75 int mmc_attach_sdio(struct mmc_host *host);
  76
  77 /* Module parameters */
  78 extern bool use_spi_crc;
  79
  80 /* Debugfs information for hosts and cards */
  81 void mmc_add_host_debugfs(struct mmc_host *host);
  82 void mmc_remove_host_debugfs(struct mmc_host *host);
  83
  84 void mmc_add_card_debugfs(struct mmc_card *card);
  85 void mmc_remove_card_debugfs(struct mmc_card *card);
  86
  87 void mmc_init_context_info(struct mmc_host *host);
  88
  89 int mmc_execute_tuning(struct mmc_card *card);
  90 int mmc_hs200_to_hs400(struct mmc_card *card);
  91 int mmc_hs400_to_hs200(struct mmc_card *card);
  92
  93 #ifdef CONFIG_PM_SLEEP
  94 void mmc_register_pm_notifier(struct mmc_host *host);
  95 void mmc_unregister_pm_notifier(struct mmc_host *host);
  96 #else
  97 static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
  98 static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
  99 #endif
 100
 101 #endif
 102