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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-08-14 11:23:45 +0200 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-08-21 16:35:35 +0200 |
| commit | 6505a91a77d4efcc6d54b35851abcb137cdca30a (patch) | |
| tree | 8543fa20445bc3eefd30cfa9588f77cbeab4f2b3 /include/hw/sd | |
| parent | 62a21be60f8fdf0223fa099fb4e7a495eaf55cf9 (diff) | |
| download | qemu-6505a91a77d4efcc6d54b35851abcb137cdca30a.zip | |
hw/sd: Add sdbus_read_data() to read multiples bytes on the data line
Add a sdbus_read_data() method to read multiple bytes on the
data line of a SD bus.
We might improve the tracing later, for now keep logging each
byte individually.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200814092346.21825-7-f4bug@amsat.org>
Diffstat (limited to 'include/hw/sd')
| -rw-r--r-- | include/hw/sd/sd.h | 9 |
1 files changed, 9 insertions, 0 deletions
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); |