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