38fb699795
The UNSTUFF_BITS macro, which is defined in both drivers/mmc/core/mmc.c and drivers/mmc/core/sd.c, has been converted to an inline function to improve readability, maintainability, and type safety. Signed-off-by: Avri Altman <avri.altman@wdc.com> Link: https://lore.kernel.org/r/20240902123331.3566447-1-avri.altman@wdc.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* linux/drivers/mmc/core/mmc_ops.h
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*
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* Copyright 2006-2007 Pierre Ossman
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*/
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#ifndef _MMC_MMC_OPS_H
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#define _MMC_MMC_OPS_H
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#include <linux/types.h>
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enum mmc_busy_cmd {
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MMC_BUSY_CMD6,
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MMC_BUSY_ERASE,
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MMC_BUSY_HPI,
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MMC_BUSY_EXTR_SINGLE,
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MMC_BUSY_IO,
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};
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struct mmc_host;
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struct mmc_card;
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struct mmc_command;
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int mmc_select_card(struct mmc_card *card);
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int mmc_deselect_cards(struct mmc_host *host);
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int mmc_set_dsr(struct mmc_host *host);
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int mmc_go_idle(struct mmc_host *host);
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int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
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int mmc_set_relative_addr(struct mmc_card *card);
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int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode,
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u32 args, void *buf, unsigned len);
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int mmc_send_csd(struct mmc_card *card, u32 *csd);
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int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries);
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int mmc_send_cid(struct mmc_host *host, u32 *cid);
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int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp);
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int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
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int mmc_bus_test(struct mmc_card *card, u8 bus_width);
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int mmc_can_ext_csd(struct mmc_card *card);
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int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal);
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bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd,
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unsigned int timeout_ms);
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int __mmc_poll_for_busy(struct mmc_host *host, unsigned int period_us,
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unsigned int timeout_ms,
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int (*busy_cb)(void *cb_data, bool *busy),
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void *cb_data);
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int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
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bool retry_crc_err, enum mmc_busy_cmd busy_cmd);
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int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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unsigned int timeout_ms, unsigned char timing,
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bool send_status, bool retry_crc_err, unsigned int retries);
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int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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unsigned int timeout_ms);
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void mmc_run_bkops(struct mmc_card *card);
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int mmc_cmdq_enable(struct mmc_card *card);
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int mmc_cmdq_disable(struct mmc_card *card);
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int mmc_sanitize(struct mmc_card *card, unsigned int timeout_ms);
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static inline u32 unstuff_bits(const u32 *resp, int start, int size)
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{
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const int __size = size;
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const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1;
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const int __off = 3 - (start / 32);
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const int __shft = start & 31;
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u32 __res = resp[__off] >> __shft;
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if (__size + __shft > 32)
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__res |= resp[__off - 1] << ((32 - __shft) % 32);
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return __res & __mask;
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}
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#endif
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