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_gate_clock(struct mmc_host *host); 44 void mmc_ungate_clock(struct mmc_host *host); 45 void mmc_set_ungated(struct mmc_host *host); 46 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); 47 void mmc_set_bus_width(struct mmc_host *host, unsigned int width); 48 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); 49 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr); 50 int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); 51 void mmc_set_timing(struct mmc_host *host, unsigned int timing); 52 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); 53 int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr, 54 int card_drv_type, int *drv_type); 55 void mmc_power_up(struct mmc_host *host, u32 ocr); 56 void mmc_power_off(struct mmc_host *host); 57 void mmc_power_cycle(struct mmc_host *host, u32 ocr); 58 void mmc_set_initial_state(struct mmc_host *host); 59 60 static inline void mmc_delay(unsigned int ms) 61 { 62 if (ms < 1000 / HZ) { 63 cond_resched(); 64 mdelay(ms); 65 } else { 66 msleep(ms); 67 } 68 } 69 70 void mmc_rescan(struct work_struct *work); 71 void mmc_start_host(struct mmc_host *host); 72 void mmc_stop_host(struct mmc_host *host); 73 74 int _mmc_detect_card_removed(struct mmc_host *host); 75 76 int mmc_attach_mmc(struct mmc_host *host); 77 int mmc_attach_sd(struct mmc_host *host); 78 int mmc_attach_sdio(struct mmc_host *host); 79 80 /* Module parameters */ 81 extern bool use_spi_crc; 82 83 /* Debugfs information for hosts and cards */ 84 void mmc_add_host_debugfs(struct mmc_host *host); 85 void mmc_remove_host_debugfs(struct mmc_host *host); 86 87 void mmc_add_card_debugfs(struct mmc_card *card); 88 void mmc_remove_card_debugfs(struct mmc_card *card); 89 90 void mmc_init_context_info(struct mmc_host *host); 91 92 int mmc_execute_tuning(struct mmc_card *card); 93 int mmc_hs200_to_hs400(struct mmc_card *card); 94 int mmc_hs400_to_hs200(struct mmc_card *card); 95 96 #endif 97 98