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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * linux/drivers/mmc/core/core.h
- *
- * Copyright (C) 2003 Russell King, All Rights Reserved.
- * Copyright 2007 Pierre Ossman
- */
- #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 (*alive)(struct mmc_host *);
- int (*shutdown)(struct mmc_host *);
- int (*hw_reset)(struct mmc_host *);
- int (*sw_reset)(struct mmc_host *);
- bool (*cache_enabled)(struct mmc_host *);
- ANDROID_VENDOR_DATA_ARRAY(1, 2);
- };
- 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);
- extern 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_initial_signal_voltage(struct mmc_host *host);
- 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);
- u32 mmc_vddrange_to_ocrmask(int vdd_min, int vdd_max);
- 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);
- void mmc_stop_host(struct mmc_host *host);
- void _mmc_detect_change(struct mmc_host *host, unsigned long delay,
- bool cd_irq);
- 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);
- 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);
- 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);
- 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_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);
- /**
- * mmc_pre_req - Prepare for a new request
- * @host: MMC host to prepare command
- * @mrq: MMC request to prepare for
- *
- * mmc_pre_req() is called in prior to mmc_start_req() to let
- * host prepare for the new request. Preparation of a request may be
- * performed while another request is running on the host.
- */
- static inline void mmc_pre_req(struct mmc_host *host, struct mmc_request *mrq)
- {
- if (host->ops->pre_req)
- host->ops->pre_req(host, mrq);
- }
- /**
- * mmc_post_req - Post process a completed request
- * @host: MMC host to post process command
- * @mrq: MMC request to post process for
- * @err: Error, if non zero, clean up any resources made in pre_req
- *
- * Let the host post process a completed request. Post processing of
- * a request may be performed while another request is running.
- */
- static inline void mmc_post_req(struct mmc_host *host, struct mmc_request *mrq,
- int err)
- {
- if (host->ops->post_req)
- host->ops->post_req(host, mrq, err);
- }
- static inline bool mmc_cache_enabled(struct mmc_host *host)
- {
- if (host->bus_ops->cache_enabled)
- return host->bus_ops->cache_enabled(host);
- return false;
- }
- #endif
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