diff options
Diffstat (limited to 'drivers/mmc/core/mmc_ops.h')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index 92d4194c7893..514c40ff4b4e 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -25,6 +25,7 @@ struct mmc_command; int mmc_select_card(struct mmc_card *card); int mmc_deselect_cards(struct mmc_host *host); int mmc_set_dsr(struct mmc_host *host); +int __mmc_go_idle(struct mmc_host *host); int mmc_go_idle(struct mmc_host *host); int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr); int mmc_set_relative_addr(struct mmc_card *card); @@ -36,7 +37,7 @@ int mmc_send_cid(struct mmc_host *host, u32 *cid); int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp); int mmc_spi_set_crc(struct mmc_host *host, int use_crc); int mmc_bus_test(struct mmc_card *card, u8 bus_width); -int mmc_can_ext_csd(struct mmc_card *card); +bool mmc_card_can_ext_csd(struct mmc_card *card); int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal); bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd, unsigned int timeout_ms); @@ -56,5 +57,19 @@ int mmc_cmdq_enable(struct mmc_card *card); int mmc_cmdq_disable(struct mmc_card *card); int mmc_sanitize(struct mmc_card *card, unsigned int timeout_ms); +static inline u32 unstuff_bits(const u32 *resp, int start, int size) +{ + const int __size = size; + const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; + const int __off = 3 - (start / 32); + const int __shft = start & 31; + u32 __res = resp[__off] >> __shft; + + if (__size + __shft > 32) + __res |= resp[__off - 1] << ((32 - __shft) % 32); + + return __res & __mask; +} + #endif |