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 18struct 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}; 31 32void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); 33void mmc_detach_bus(struct mmc_host *host); 34 35void mmc_init_erase(struct mmc_card *card); 36 37void mmc_set_chip_select(struct mmc_host *host, int mode); 38void mmc_set_clock(struct mmc_host *host, unsigned int hz); 39void mmc_gate_clock(struct mmc_host *host); 40void mmc_ungate_clock(struct mmc_host *host); 41void mmc_set_ungated(struct mmc_host *host); 42void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); 43void mmc_set_bus_width(struct mmc_host *host, unsigned int width); 44u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); 45int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr); 46int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); 47void mmc_set_timing(struct mmc_host *host, unsigned int timing); 48void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); 49void mmc_power_up(struct mmc_host *host, u32 ocr); 50void mmc_power_off(struct mmc_host *host); 51void mmc_power_cycle(struct mmc_host *host, u32 ocr); 52 53static inline void mmc_delay(unsigned int ms) 54{ 55 if (ms < 1000 / HZ) { 56 cond_resched(); 57 mdelay(ms); 58 } else { 59 msleep(ms); 60 } 61} 62 63void mmc_rescan(struct work_struct *work); 64void mmc_start_host(struct mmc_host *host); 65void mmc_stop_host(struct mmc_host *host); 66 67int _mmc_detect_card_removed(struct mmc_host *host); 68 69int mmc_attach_mmc(struct mmc_host *host); 70int mmc_attach_sd(struct mmc_host *host); 71int mmc_attach_sdio(struct mmc_host *host); 72 73/* Module parameters */ 74extern bool use_spi_crc; 75 76/* Debugfs information for hosts and cards */ 77void mmc_add_host_debugfs(struct mmc_host *host); 78void mmc_remove_host_debugfs(struct mmc_host *host); 79 80void mmc_add_card_debugfs(struct mmc_card *card); 81void mmc_remove_card_debugfs(struct mmc_card *card); 82 83void mmc_init_context_info(struct mmc_host *host); 84#endif 85 86