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hw/sd: Add sdbus_read_data() to read multiples bytes on the data line

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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>
This commit is contained in:
Philippe Mathieu-Daudé 2020-08-14 11:23:45 +02:00
parent 62a21be60f
commit 6505a91a77
2 changed files with 24 additions and 0 deletions
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9
include/hw/sd/sd.h
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@ -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);