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_release(struct mmc_host *host); 23 int mmc_retune(struct mmc_host *host); 24 void mmc_retune_pause(struct mmc_host *host); 25 void mmc_retune_unpause(struct mmc_host *host); 26 27 static inline void mmc_retune_recheck(struct mmc_host *host) 28 { 29 if (host->hold_retune <= 1) 30 host->retune_now = 1; 31 } 32 33 static inline int mmc_host_cmd23(struct mmc_host *host) 34 { 35 return host->caps & MMC_CAP_CMD23; 36 } 37 38 static inline int mmc_boot_partition_access(struct mmc_host *host) 39 { 40 return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); 41 } 42 43 static inline int mmc_host_uhs(struct mmc_host *host) 44 { 45 return host->caps & 46 (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | 47 MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | 48 MMC_CAP_UHS_DDR50); 49 } 50 51 static inline bool mmc_card_hs200(struct mmc_card *card) 52 { 53 return card->host->ios.timing == MMC_TIMING_MMC_HS200; 54 } 55 56 static inline bool mmc_card_ddr52(struct mmc_card *card) 57 { 58 return card->host->ios.timing == MMC_TIMING_MMC_DDR52; 59 } 60 61 static inline bool mmc_card_hs400(struct mmc_card *card) 62 { 63 return card->host->ios.timing == MMC_TIMING_MMC_HS400; 64 } 65 66 static inline bool mmc_card_hs400es(struct mmc_card *card) 67 { 68 return card->host->ios.enhanced_strobe; 69 } 70 71 72 #endif 73 74