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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * linux/drivers/mmc/core/host.h4 *5 * Copyright (C) 2003 Russell King, All Rights Reserved.6 * Copyright 2007 Pierre Ossman7 */8#ifndef _MMC_CORE_HOST_H9#define _MMC_CORE_HOST_H10 11#include <linux/mmc/host.h>12 13int mmc_register_host_class(void);14void mmc_unregister_host_class(void);15 16void mmc_retune_enable(struct mmc_host *host);17void mmc_retune_disable(struct mmc_host *host);18void mmc_retune_hold(struct mmc_host *host);19void mmc_retune_release(struct mmc_host *host);20int mmc_retune(struct mmc_host *host);21void mmc_retune_pause(struct mmc_host *host);22void mmc_retune_unpause(struct mmc_host *host);23 24static inline void mmc_retune_clear(struct mmc_host *host)25{26 host->retune_now = 0;27 host->need_retune = 0;28}29 30static inline void mmc_retune_hold_now(struct mmc_host *host)31{32 host->retune_now = 0;33 host->hold_retune += 1;34}35 36static inline void mmc_retune_recheck(struct mmc_host *host)37{38 if (host->hold_retune <= 1)39 host->retune_now = 1;40}41 42static inline int mmc_host_cmd23(struct mmc_host *host)43{44 return host->caps & MMC_CAP_CMD23;45}46 47static inline bool mmc_host_done_complete(struct mmc_host *host)48{49 return host->caps & MMC_CAP_DONE_COMPLETE;50}51 52static inline int mmc_boot_partition_access(struct mmc_host *host)53{54 return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);55}56 57static inline int mmc_host_uhs(struct mmc_host *host)58{59 return host->caps &60 (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |61 MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 |62 MMC_CAP_UHS_DDR50) &&63 host->caps & MMC_CAP_4_BIT_DATA;64}65 66static inline bool mmc_card_hs200(struct mmc_card *card)67{68 return card->host->ios.timing == MMC_TIMING_MMC_HS200;69}70 71static inline bool mmc_card_ddr52(struct mmc_card *card)72{73 return card->host->ios.timing == MMC_TIMING_MMC_DDR52;74}75 76static inline bool mmc_card_hs400(struct mmc_card *card)77{78 return card->host->ios.timing == MMC_TIMING_MMC_HS400;79}80 81static inline bool mmc_card_hs400es(struct mmc_card *card)82{83 return card->host->ios.enhanced_strobe;84}85 86static inline bool mmc_card_sd_express(struct mmc_host *host)87{88 return host->ios.timing == MMC_TIMING_SD_EXP ||89 host->ios.timing == MMC_TIMING_SD_EXP_1_2V;90}91 92#endif93 94