2 * linux/drivers/mmc/core/core.h
4 * Copyright (C) 2003 Russell King, All Rights Reserved.
5 * Copyright 2007 Pierre Ossman
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.
11 #ifndef _MMC_CORE_CORE_H
12 #define _MMC_CORE_CORE_H
14 #include <linux/delay.h>
15 #include <linux/sched.h>
21 #define MMC_CMD_RETRIES 3
24 void (*remove)(struct mmc_host *);
25 void (*detect)(struct mmc_host *);
26 int (*pre_suspend)(struct mmc_host *);
27 int (*suspend)(struct mmc_host *);
28 int (*resume)(struct mmc_host *);
29 int (*runtime_suspend)(struct mmc_host *);
30 int (*runtime_resume)(struct mmc_host *);
31 int (*power_save)(struct mmc_host *);
32 int (*power_restore)(struct mmc_host *);
33 int (*alive)(struct mmc_host *);
34 int (*shutdown)(struct mmc_host *);
35 int (*reset)(struct mmc_host *);
38 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
39 void mmc_detach_bus(struct mmc_host *host);
41 struct device_node *mmc_of_find_child_device(struct mmc_host *host,
44 void mmc_init_erase(struct mmc_card *card);
46 void mmc_set_chip_select(struct mmc_host *host, int mode);
47 void mmc_set_clock(struct mmc_host *host, unsigned int hz);
48 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
49 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
50 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
51 int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr);
52 int mmc_host_set_uhs_voltage(struct mmc_host *host);
53 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
54 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
55 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
56 int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
57 int card_drv_type, int *drv_type);
58 void mmc_power_up(struct mmc_host *host, u32 ocr);
59 void mmc_power_off(struct mmc_host *host);
60 void mmc_power_cycle(struct mmc_host *host, u32 ocr);
61 void mmc_set_initial_state(struct mmc_host *host);
63 static inline void mmc_delay(unsigned int ms)
66 usleep_range(ms * 1000, ms * 1250);
71 void mmc_rescan(struct work_struct *work);
72 void mmc_start_host(struct mmc_host *host);
73 void mmc_stop_host(struct mmc_host *host);
75 int _mmc_detect_card_removed(struct mmc_host *host);
76 int mmc_detect_card_removed(struct mmc_host *host);
78 int mmc_attach_mmc(struct mmc_host *host);
79 int mmc_attach_sd(struct mmc_host *host);
80 int mmc_attach_sdio(struct mmc_host *host);
82 /* Module parameters */
83 extern bool use_spi_crc;
85 /* Debugfs information for hosts and cards */
86 void mmc_add_host_debugfs(struct mmc_host *host);
87 void mmc_remove_host_debugfs(struct mmc_host *host);
89 void mmc_add_card_debugfs(struct mmc_card *card);
90 void mmc_remove_card_debugfs(struct mmc_card *card);
92 void mmc_init_context_info(struct mmc_host *host);
94 int mmc_execute_tuning(struct mmc_card *card);
95 int mmc_hs200_to_hs400(struct mmc_card *card);
96 int mmc_hs400_to_hs200(struct mmc_card *card);
98 #ifdef CONFIG_PM_SLEEP
99 void mmc_register_pm_notifier(struct mmc_host *host);
100 void mmc_unregister_pm_notifier(struct mmc_host *host);
102 static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
103 static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
106 void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq);
107 bool mmc_is_req_done(struct mmc_host *host, struct mmc_request *mrq);
109 int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq);
111 struct mmc_async_req;
113 struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
114 struct mmc_async_req *areq,
115 enum mmc_blk_status *ret_stat);
117 int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
119 int mmc_can_erase(struct mmc_card *card);
120 int mmc_can_trim(struct mmc_card *card);
121 int mmc_can_discard(struct mmc_card *card);
122 int mmc_can_sanitize(struct mmc_card *card);
123 int mmc_can_secure_erase_trim(struct mmc_card *card);
124 int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
126 unsigned int mmc_calc_max_discard(struct mmc_card *card);
128 int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
129 int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount,
132 int __mmc_claim_host(struct mmc_host *host, struct mmc_ctx *ctx,
134 void mmc_release_host(struct mmc_host *host);
135 void mmc_get_card(struct mmc_card *card, struct mmc_ctx *ctx);
136 void mmc_put_card(struct mmc_card *card, struct mmc_ctx *ctx);
139 * mmc_claim_host - exclusively claim a host
140 * @host: mmc host to claim
142 * Claim a host for a set of operations.
144 static inline void mmc_claim_host(struct mmc_host *host)
146 __mmc_claim_host(host, NULL, NULL);
149 int mmc_cqe_start_req(struct mmc_host *host, struct mmc_request *mrq);
150 void mmc_cqe_post_req(struct mmc_host *host, struct mmc_request *mrq);
151 int mmc_cqe_recovery(struct mmc_host *host);