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 a3b620b802..9c2781ebf9 100644 --- a/hw/sd/core.c +++ b/hw/sd/core.c @@ -114,6 +114,21 @@ void sdbus_write_byte(SDBus *sdbus, uint8_t value) } } +void sdbus_write_data(SDBus *sdbus, const void *buf, size_t length) +{ + SDState *card = get_card(sdbus); + const uint8_t *data = buf; + + if (card) { + SDCardClass *sc = SD_CARD_GET_CLASS(card); + + for (size_t i = 0; i < length; i++) { + trace_sdbus_write(sdbus_name(sdbus), data[i]); + sc->write_byte(card, data[i]); + } + } +} + uint8_t sdbus_read_byte(SDBus *sdbus) { SDState *card = get_card(sdbus); diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 14ffc7f475..3ae3e8939b 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -175,6 +175,15 @@ void sdbus_write_byte(SDBus *sd, uint8_t value); * Return: byte value read */ uint8_t sdbus_read_byte(SDBus *sd); +/** + * Write data to a SD bus. + * @sdbus: bus + * @buf: data to write + * @length: number of bytes to write + * + * 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); bool sdbus_data_ready(SDBus *sd); bool sdbus_get_inserted(SDBus *sd); bool sdbus_get_readonly(SDBus *sd); |