mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 10:01:43 +00:00
96455380ec
Documentation/timers/timers-howto.txt recommends to use usleep_range for delays 1-20ms. Let's adhere to it. No need for messing with HZ and still do busy looping these days. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
154 lines
5.1 KiB
C
154 lines
5.1 KiB
C
/*
|
|
* linux/drivers/mmc/core/core.h
|
|
*
|
|
* Copyright (C) 2003 Russell King, All Rights Reserved.
|
|
* Copyright 2007 Pierre Ossman
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef _MMC_CORE_CORE_H
|
|
#define _MMC_CORE_CORE_H
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/sched.h>
|
|
|
|
struct mmc_host;
|
|
struct mmc_card;
|
|
struct mmc_request;
|
|
|
|
#define MMC_CMD_RETRIES 3
|
|
|
|
struct mmc_bus_ops {
|
|
void (*remove)(struct mmc_host *);
|
|
void (*detect)(struct mmc_host *);
|
|
int (*pre_suspend)(struct mmc_host *);
|
|
int (*suspend)(struct mmc_host *);
|
|
int (*resume)(struct mmc_host *);
|
|
int (*runtime_suspend)(struct mmc_host *);
|
|
int (*runtime_resume)(struct mmc_host *);
|
|
int (*power_save)(struct mmc_host *);
|
|
int (*power_restore)(struct mmc_host *);
|
|
int (*alive)(struct mmc_host *);
|
|
int (*shutdown)(struct mmc_host *);
|
|
int (*reset)(struct mmc_host *);
|
|
};
|
|
|
|
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
|
|
void mmc_detach_bus(struct mmc_host *host);
|
|
|
|
struct device_node *mmc_of_find_child_device(struct mmc_host *host,
|
|
unsigned func_num);
|
|
|
|
void mmc_init_erase(struct mmc_card *card);
|
|
|
|
void mmc_set_chip_select(struct mmc_host *host, int mode);
|
|
void mmc_set_clock(struct mmc_host *host, unsigned int hz);
|
|
void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
|
|
void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
|
|
u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
|
|
int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr);
|
|
int mmc_host_set_uhs_voltage(struct mmc_host *host);
|
|
int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
|
|
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
|
|
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
|
|
int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
|
|
int card_drv_type, int *drv_type);
|
|
void mmc_power_up(struct mmc_host *host, u32 ocr);
|
|
void mmc_power_off(struct mmc_host *host);
|
|
void mmc_power_cycle(struct mmc_host *host, u32 ocr);
|
|
void mmc_set_initial_state(struct mmc_host *host);
|
|
|
|
static inline void mmc_delay(unsigned int ms)
|
|
{
|
|
if (ms <= 20)
|
|
usleep_range(ms * 1000, ms * 1250);
|
|
else
|
|
msleep(ms);
|
|
}
|
|
|
|
void mmc_rescan(struct work_struct *work);
|
|
void mmc_start_host(struct mmc_host *host);
|
|
void mmc_stop_host(struct mmc_host *host);
|
|
|
|
int _mmc_detect_card_removed(struct mmc_host *host);
|
|
int mmc_detect_card_removed(struct mmc_host *host);
|
|
|
|
int mmc_attach_mmc(struct mmc_host *host);
|
|
int mmc_attach_sd(struct mmc_host *host);
|
|
int mmc_attach_sdio(struct mmc_host *host);
|
|
|
|
/* Module parameters */
|
|
extern bool use_spi_crc;
|
|
|
|
/* Debugfs information for hosts and cards */
|
|
void mmc_add_host_debugfs(struct mmc_host *host);
|
|
void mmc_remove_host_debugfs(struct mmc_host *host);
|
|
|
|
void mmc_add_card_debugfs(struct mmc_card *card);
|
|
void mmc_remove_card_debugfs(struct mmc_card *card);
|
|
|
|
void mmc_init_context_info(struct mmc_host *host);
|
|
|
|
int mmc_execute_tuning(struct mmc_card *card);
|
|
int mmc_hs200_to_hs400(struct mmc_card *card);
|
|
int mmc_hs400_to_hs200(struct mmc_card *card);
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
void mmc_register_pm_notifier(struct mmc_host *host);
|
|
void mmc_unregister_pm_notifier(struct mmc_host *host);
|
|
#else
|
|
static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
|
|
static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
|
|
#endif
|
|
|
|
void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq);
|
|
bool mmc_is_req_done(struct mmc_host *host, struct mmc_request *mrq);
|
|
|
|
int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq);
|
|
|
|
struct mmc_async_req;
|
|
|
|
struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
|
|
struct mmc_async_req *areq,
|
|
enum mmc_blk_status *ret_stat);
|
|
|
|
int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
|
|
unsigned int arg);
|
|
int mmc_can_erase(struct mmc_card *card);
|
|
int mmc_can_trim(struct mmc_card *card);
|
|
int mmc_can_discard(struct mmc_card *card);
|
|
int mmc_can_sanitize(struct mmc_card *card);
|
|
int mmc_can_secure_erase_trim(struct mmc_card *card);
|
|
int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
|
|
unsigned int nr);
|
|
unsigned int mmc_calc_max_discard(struct mmc_card *card);
|
|
|
|
int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
|
|
int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount,
|
|
bool is_rel_write);
|
|
|
|
int __mmc_claim_host(struct mmc_host *host, struct mmc_ctx *ctx,
|
|
atomic_t *abort);
|
|
void mmc_release_host(struct mmc_host *host);
|
|
void mmc_get_card(struct mmc_card *card, struct mmc_ctx *ctx);
|
|
void mmc_put_card(struct mmc_card *card, struct mmc_ctx *ctx);
|
|
|
|
/**
|
|
* mmc_claim_host - exclusively claim a host
|
|
* @host: mmc host to claim
|
|
*
|
|
* Claim a host for a set of operations.
|
|
*/
|
|
static inline void mmc_claim_host(struct mmc_host *host)
|
|
{
|
|
__mmc_claim_host(host, NULL, NULL);
|
|
}
|
|
|
|
int mmc_cqe_start_req(struct mmc_host *host, struct mmc_request *mrq);
|
|
void mmc_cqe_post_req(struct mmc_host *host, struct mmc_request *mrq);
|
|
int mmc_cqe_recovery(struct mmc_host *host);
|
|
|
|
#endif
|