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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * linux/drivers/mmc/core/mmc_ops.h
4 *
5 * Copyright 2006-2007 Pierre Ossman
6 */
7
8#ifndef _MMC_MMC_OPS_H
9#define _MMC_MMC_OPS_H
10
11#include <linux/types.h>
12
13enum mmc_busy_cmd {
14 MMC_BUSY_CMD6,
15 MMC_BUSY_ERASE,
16 MMC_BUSY_HPI,
17 MMC_BUSY_EXTR_SINGLE,
18 MMC_BUSY_IO,
19};
20
21struct mmc_host;
22struct mmc_card;
23struct mmc_command;
24
25int mmc_select_card(struct mmc_card *card);
26int mmc_deselect_cards(struct mmc_host *host);
27int mmc_set_dsr(struct mmc_host *host);
28int __mmc_go_idle(struct mmc_host *host);
29int mmc_go_idle(struct mmc_host *host);
30int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
31int mmc_set_relative_addr(struct mmc_card *card);
32int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode,
33 u32 args, void *buf, unsigned len);
34int mmc_send_csd(struct mmc_card *card, u32 *csd);
35int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries);
36int mmc_send_cid(struct mmc_host *host, u32 *cid);
37int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp);
38int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
39int mmc_bus_test(struct mmc_card *card, u8 bus_width);
40bool mmc_card_can_ext_csd(struct mmc_card *card);
41int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal);
42bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd,
43 unsigned int timeout_ms);
44int __mmc_poll_for_busy(struct mmc_host *host, unsigned int period_us,
45 unsigned int timeout_ms,
46 int (*busy_cb)(void *cb_data, bool *busy),
47 void *cb_data);
48int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
49 bool retry_crc_err, enum mmc_busy_cmd busy_cmd);
50int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
51 unsigned int timeout_ms, unsigned char timing,
52 bool send_status, bool retry_crc_err, unsigned int retries);
53int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
54 unsigned int timeout_ms);
55void mmc_run_bkops(struct mmc_card *card);
56int mmc_cmdq_enable(struct mmc_card *card);
57int mmc_cmdq_disable(struct mmc_card *card);
58int mmc_sanitize(struct mmc_card *card, unsigned int timeout_ms);
59
60static inline u32 unstuff_bits(const u32 *resp, int start, int size)
61{
62 const int __size = size;
63 const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1;
64 const int __off = 3 - (start / 32);
65 const int __shft = start & 31;
66 u32 __res = resp[__off] >> __shft;
67
68 if (__size + __shft > 32)
69 __res |= resp[__off - 1] << ((32 - __shft) % 32);
70
71 return __res & __mask;
72}
73
74#endif
75