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 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 void (*power_save)(struct mmc_host *); 26 void (*power_restore)(struct mmc_host *); 27 }; 28 29 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); 30 void mmc_detach_bus(struct mmc_host *host); 31 32 void mmc_init_erase(struct mmc_card *card); 33 34 void mmc_set_chip_select(struct mmc_host *host, int mode); 35 void mmc_set_clock(struct mmc_host *host, unsigned int hz); 36 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); 37 void mmc_set_bus_width(struct mmc_host *host, unsigned int width); 38 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); 39 void mmc_set_timing(struct mmc_host *host, unsigned int timing); 40 41 static inline void mmc_delay(unsigned int ms) 42 { 43 if (ms < 1000 / HZ) { 44 cond_resched(); 45 mdelay(ms); 46 } else { 47 msleep(ms); 48 } 49 } 50 51 void mmc_rescan(struct work_struct *work); 52 void mmc_start_host(struct mmc_host *host); 53 void mmc_stop_host(struct mmc_host *host); 54 55 int mmc_attach_mmc(struct mmc_host *host, u32 ocr); 56 int mmc_attach_sd(struct mmc_host *host, u32 ocr); 57 int mmc_attach_sdio(struct mmc_host *host, u32 ocr); 58 59 /* Module parameters */ 60 extern int use_spi_crc; 61 extern int mmc_assume_removable; 62 63 /* Debugfs information for hosts and cards */ 64 void mmc_add_host_debugfs(struct mmc_host *host); 65 void mmc_remove_host_debugfs(struct mmc_host *host); 66 67 void mmc_add_card_debugfs(struct mmc_card *card); 68 void mmc_remove_card_debugfs(struct mmc_card *card); 69 70 #endif 71 72