1 /* 2 * linux/drivers/mmc/core/host.h 3 * 4 * Copyright (C) 2003 Russell King, All Rights Reserved. 5 * Copyright 2007 Pierre Ossman 6 * 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. 10 */ 11 #ifndef _MMC_CORE_HOST_H 12 #define _MMC_CORE_HOST_H 13 14 #include <linux/mmc/host.h> 15 16 int mmc_register_host_class(void); 17 void mmc_unregister_host_class(void); 18 19 void mmc_retune_enable(struct mmc_host *host); 20 void mmc_retune_disable(struct mmc_host *host); 21 void mmc_retune_hold(struct mmc_host *host); 22 void mmc_retune_hold_now(struct mmc_host *host); 23 void mmc_retune_release(struct mmc_host *host); 24 int mmc_retune(struct mmc_host *host); 25 void mmc_retune_pause(struct mmc_host *host); 26 void mmc_retune_unpause(struct mmc_host *host); 27 28 static inline void mmc_retune_recheck(struct mmc_host *host) 29 { 30 if (host->hold_retune <= 1) 31 host->retune_now = 1; 32 } 33 34 static inline int mmc_host_cmd23(struct mmc_host *host) 35 { 36 return host->caps & MMC_CAP_CMD23; 37 } 38 39 static inline int mmc_boot_partition_access(struct mmc_host *host) 40 { 41 return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); 42 } 43 44 static inline int mmc_host_uhs(struct mmc_host *host) 45 { 46 return host->caps & 47 (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | 48 MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | 49 MMC_CAP_UHS_DDR50); 50 } 51 52 static inline bool mmc_card_hs200(struct mmc_card *card) 53 { 54 return card->host->ios.timing == MMC_TIMING_MMC_HS200; 55 } 56 57 static inline bool mmc_card_ddr52(struct mmc_card *card) 58 { 59 return card->host->ios.timing == MMC_TIMING_MMC_DDR52; 60 } 61 62 static inline bool mmc_card_hs400(struct mmc_card *card) 63 { 64 return card->host->ios.timing == MMC_TIMING_MMC_HS400; 65 } 66 67 static inline bool mmc_card_hs400es(struct mmc_card *card) 68 { 69 return card->host->ios.enhanced_strobe; 70 } 71 72 73 #endif 74 75