LXR linux/drivers/mmc/core/host.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *  linux/drivers/mmc/core/host.h
   4 *
   5 *  Copyright (C) 2003 Russell King, All Rights Reserved.
   6 *  Copyright 2007 Pierre Ossman
   7 */
   8#ifndef _MMC_CORE_HOST_H
   9#define _MMC_CORE_HOST_H
  10
  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_hold_now(struct mmc_host *host)
  25{
  26        host->retune_now = 0;
  27        host->hold_retune += 1;
  28}
  29
  30static inline void mmc_retune_recheck(struct mmc_host *host)
  31{
  32        if (host->hold_retune <= 1)
  33                host->retune_now = 1;
  34}
  35
  36static inline int mmc_host_cmd23(struct mmc_host *host)
  37{
  38        return host->caps & MMC_CAP_CMD23;
  39}
  40
  41static inline bool mmc_host_done_complete(struct mmc_host *host)
  42{
  43        return host->caps & MMC_CAP_DONE_COMPLETE;
  44}
  45
  46static inline int mmc_boot_partition_access(struct mmc_host *host)
  47{
  48        return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);
  49}
  50
  51static inline int mmc_host_uhs(struct mmc_host *host)
  52{
  53        return host->caps &
  54                (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
  55                 MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 |
  56                 MMC_CAP_UHS_DDR50) &&
  57               host->caps & MMC_CAP_4_BIT_DATA;
  58}
  59
  60static inline bool mmc_card_hs200(struct mmc_card *card)
  61{
  62        return card->host->ios.timing == MMC_TIMING_MMC_HS200;
  63}
  64
  65static inline bool mmc_card_ddr52(struct mmc_card *card)
  66{
  67        return card->host->ios.timing == MMC_TIMING_MMC_DDR52;
  68}
  69
  70static inline bool mmc_card_hs400(struct mmc_card *card)
  71{
  72        return card->host->ios.timing == MMC_TIMING_MMC_HS400;
  73}
  74
  75static inline bool mmc_card_hs400es(struct mmc_card *card)
  76{
  77        return card->host->ios.enhanced_strobe;
  78}
  79
  80#endif
  81
  82