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_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#endif
93

 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_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#endif
93