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 (*sysfs_add)(struct mmc_host *, struct mmc_card *card);
  22         void (*sysfs_remove)(struct mmc_host *, struct mmc_card *card);
  23         void (*suspend)(struct mmc_host *);
  24         void (*resume)(struct mmc_host *);
  25 };
  26
  27 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
  28 void mmc_detach_bus(struct mmc_host *host);
  29
  30 void mmc_set_chip_select(struct mmc_host *host, int mode);
  31 void mmc_set_clock(struct mmc_host *host, unsigned int hz);
  32 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
  33 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
  34 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
  35 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
  36
  37 static inline void mmc_delay(unsigned int ms)
  38 {
  39         if (ms < 1000 / HZ) {
  40                 cond_resched();
  41                 mdelay(ms);
  42         } else {
  43                 msleep(ms);
  44         }
  45 }
  46
  47 #if 0   // mask by Victor Yu. 12-02-2008
  48 void mmc_rescan(struct work_struct *work);
  49 #else
  50 void mmc_rescan(void *data);
  51 #endif
  52 void mmc_start_host(struct mmc_host *host);
  53 void mmc_stop_host(struct mmc_host *host);
  54
  55 #endif
  56