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 int (*power_save)(struct mmc_host *); 26 int (*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_gate_clock(struct mmc_host *host); 37 void mmc_ungate_clock(struct mmc_host *host); 38 void mmc_set_ungated(struct mmc_host *host); 39 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); 40 void mmc_set_bus_width(struct mmc_host *host, unsigned int width); 41 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); 42 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, 43 bool cmd11); 44 void mmc_set_timing(struct mmc_host *host, unsigned int timing); 45 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); 46 void mmc_power_off(struct mmc_host *host); 47 48 static inline void mmc_delay(unsigned int ms) 49 { 50 if (ms < 1000 / HZ) { 51 cond_resched(); 52 mdelay(ms); 53 } else { 54 msleep(ms); 55 } 56 } 57 58 void mmc_rescan(struct work_struct *work); 59 void mmc_start_host(struct mmc_host *host); 60 void mmc_stop_host(struct mmc_host *host); 61 62 int mmc_attach_mmc(struct mmc_host *host); 63 int mmc_attach_sd(struct mmc_host *host); 64 int mmc_attach_sdio(struct mmc_host *host); 65 66 /* Module parameters */ 67 extern int use_spi_crc; 68 69 /* Debugfs information for hosts and cards */ 70 void mmc_add_host_debugfs(struct mmc_host *host); 71 void mmc_remove_host_debugfs(struct mmc_host *host); 72 73 void mmc_add_card_debugfs(struct mmc_card *card); 74 void mmc_remove_card_debugfs(struct mmc_card *card); 75 76 #endif 77 78