mmc_ops.h 2.4 KB

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  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. #ifndef _MMC_MMC_OPS_H
  8. #define _MMC_MMC_OPS_H
  9. #include <linux/types.h>
  10. enum mmc_busy_cmd {
  11. MMC_BUSY_CMD6,
  12. MMC_BUSY_ERASE,
  13. MMC_BUSY_HPI,
  14. MMC_BUSY_EXTR_SINGLE,
  15. MMC_BUSY_IO,
  16. };
  17. struct mmc_host;
  18. struct mmc_card;
  19. struct mmc_command;
  20. int mmc_select_card(struct mmc_card *card);
  21. int mmc_deselect_cards(struct mmc_host *host);
  22. int mmc_set_dsr(struct mmc_host *host);
  23. int mmc_go_idle(struct mmc_host *host);
  24. int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
  25. int mmc_set_relative_addr(struct mmc_card *card);
  26. int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode,
  27. u32 args, void *buf, unsigned len);
  28. int mmc_send_csd(struct mmc_card *card, u32 *csd);
  29. int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries);
  30. int mmc_send_cid(struct mmc_host *host, u32 *cid);
  31. int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp);
  32. int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
  33. int mmc_bus_test(struct mmc_card *card, u8 bus_width);
  34. int mmc_can_ext_csd(struct mmc_card *card);
  35. int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal);
  36. bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd,
  37. unsigned int timeout_ms);
  38. int __mmc_poll_for_busy(struct mmc_host *host, unsigned int period_us,
  39. unsigned int timeout_ms,
  40. int (*busy_cb)(void *cb_data, bool *busy),
  41. void *cb_data);
  42. int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
  43. bool retry_crc_err, enum mmc_busy_cmd busy_cmd);
  44. int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
  45. unsigned int timeout_ms, unsigned char timing,
  46. bool send_status, bool retry_crc_err, unsigned int retries);
  47. int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
  48. unsigned int timeout_ms);
  49. void mmc_run_bkops(struct mmc_card *card);
  50. int mmc_cmdq_enable(struct mmc_card *card);
  51. int mmc_cmdq_disable(struct mmc_card *card);
  52. int mmc_sanitize(struct mmc_card *card, unsigned int timeout_ms);
  53. static inline u32 unstuff_bits(const u32 *resp, int start, int size)
  54. {
  55. const int __size = size;
  56. const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1;
  57. const int __off = 3 - (start / 32);
  58. const int __shft = start & 31;
  59. u32 __res = resp[__off] >> __shft;
  60. if (__size + __shft > 32)
  61. __res |= resp[__off - 1] << ((32 - __shft) % 32);
  62. return __res & __mask;
  63. }
  64. #endif