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 (*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 int (*reset)(struct mmc_host *); 31 }; 32 33 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); 34 void mmc_detach_bus(struct mmc_host *host); 35 36 struct device_node *mmc_of_find_child_device(struct mmc_host *host, 37 unsigned func_num); 38 39 void mmc_init_erase(struct mmc_card *card); 40 41 void mmc_set_chip_select(struct mmc_host *host, int mode); 42 void mmc_set_clock(struct mmc_host *host, unsigned int hz); 43 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); 44 void mmc_set_bus_width(struct mmc_host *host, unsigned int width); 45 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); 46 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr); 47 int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); 48 void mmc_set_timing(struct mmc_host *host, unsigned int timing); 49 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); 50 int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr, 51 int card_drv_type, int *drv_type); 52 void mmc_power_up(struct mmc_host *host, u32 ocr); 53 void mmc_power_off(struct mmc_host *host); 54 void mmc_power_cycle(struct mmc_host *host, u32 ocr); 55 void mmc_set_initial_state(struct mmc_host *host); 56 57 static inline void mmc_delay(unsigned int ms) 58 { 59 if (ms < 1000 / HZ) { 60 cond_resched(); 61 mdelay(ms); 62 } else { 63 msleep(ms); 64 } 65 } 66 67 void mmc_rescan(struct work_struct *work); 68 void mmc_start_host(struct mmc_host *host); 69 void mmc_stop_host(struct mmc_host *host); 70 71 int _mmc_detect_card_removed(struct mmc_host *host); 72 73 int mmc_attach_mmc(struct mmc_host *host); 74 int mmc_attach_sd(struct mmc_host *host); 75 int mmc_attach_sdio(struct mmc_host *host); 76 77 /* Module parameters */ 78 extern bool use_spi_crc; 79 80 /* Debugfs information for hosts and cards */ 81 void mmc_add_host_debugfs(struct mmc_host *host); 82 void mmc_remove_host_debugfs(struct mmc_host *host); 83 84 void mmc_add_card_debugfs(struct mmc_card *card); 85 void mmc_remove_card_debugfs(struct mmc_card *card); 86 87 void mmc_init_context_info(struct mmc_host *host); 88 89 int mmc_execute_tuning(struct mmc_card *card); 90 int mmc_hs200_to_hs400(struct mmc_card *card); 91 int mmc_hs400_to_hs200(struct mmc_card *card); 92 93 #endif 94 95