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 13 enum 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 21 struct mmc_host; 22 struct mmc_card; 23 struct mmc_command; 24 25 int mmc_select_card(struct mmc_card *card); 26 int mmc_deselect_cards(struct mmc_host *host); 27 int mmc_set_dsr(struct mmc_host *host); 28 int __mmc_go_idle(struct mmc_host *host); 29 int mmc_go_idle(struct mmc_host *host); 30 int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr); 31 int mmc_set_relative_addr(struct mmc_card *card); 32 int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode, 33 u32 args, void *buf, unsigned len); 34 int mmc_send_csd(struct mmc_card *card, u32 *csd); 35 int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries); 36 int mmc_send_cid(struct mmc_host *host, u32 *cid); 37 int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp); 38 int mmc_spi_set_crc(struct mmc_host *host, int use_crc); 39 int mmc_bus_test(struct mmc_card *card, u8 bus_width); 40 int mmc_can_ext_csd(struct mmc_card *card); 41 int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal); 42 bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd, 43 unsigned int timeout_ms); 44 int __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); 48 int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms, 49 bool retry_crc_err, enum mmc_busy_cmd busy_cmd); 50 int __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); 53 int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, 54 unsigned int timeout_ms); 55 void mmc_run_bkops(struct mmc_card *card); 56 int mmc_cmdq_enable(struct mmc_card *card); 57 int mmc_cmdq_disable(struct mmc_card *card); 58 int mmc_sanitize(struct mmc_card *card, unsigned int timeout_ms); 59 60 static 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 76