diff options
| -rw-r--r-- | hw/sd/core.c | 15 | ||||
| -rw-r--r-- | include/hw/sd/sd.h | 9 |
2 files changed, 24 insertions, 0 deletions
diff --git a/hw/sd/core.c b/hw/sd/core.c index 9c2781ebf9..957d116f1a 100644 --- a/hw/sd/core.c +++ b/hw/sd/core.c @@ -144,6 +144,21 @@ uint8_t sdbus_read_byte(SDBus *sdbus) return value; } +void sdbus_read_data(SDBus *sdbus, void *buf, size_t length) +{ + SDState *card = get_card(sdbus); + uint8_t *data = buf; + + if (card) { + SDCardClass *sc = SD_CARD_GET_CLASS(card); + + for (size_t i = 0; i < length; i++) { + data[i] = sc->read_byte(card); + trace_sdbus_read(sdbus_name(sdbus), data[i]); + } + } +} + bool sdbus_data_ready(SDBus *sdbus) { SDState *card = get_card(sdbus); diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 3ae3e8939b..ac02d61a7a 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -184,6 +184,15 @@ uint8_t sdbus_read_byte(SDBus *sd); * Write multiple bytes of data on the data lines of a SD bus. */ void sdbus_write_data(SDBus *sdbus, const void *buf, size_t length); +/** + * Read data from a SD bus. + * @sdbus: bus + * @buf: buffer to read data into + * @length: number of bytes to read + * + * Read multiple bytes of data on the data lines of a SD bus. + */ +void sdbus_read_data(SDBus *sdbus, void *buf, size_t length); bool sdbus_data_ready(SDBus *sd); bool sdbus_get_inserted(SDBus *sd); bool sdbus_get_readonly(SDBus *sd); |