@@ -160,6 +160,16 @@ uint8_t sd_frame136_calc_checksum(const void *content);
*/
bool sd_frame48_verify_checksum(const void *content);
+/**
+ * sd_frame136_verify_checksum:
+ * @content: pointer to the frame content
+ *
+ * Verify the 7-bit CRC checksum of a 136-bit SD frame.
+ *
+ * Returns: A boolean indicating whether the frame 7-bit CRC is correct.
+ */
+bool sd_frame136_verify_checksum(const void *content);
+
/* Legacy functions to be used only by non-qdevified callers */
SDState *sd_init(BlockBackend *bs, bool is_spi);
int sd_do_command(SDState *sd, SDRequest *req,
@@ -111,3 +111,9 @@ bool sd_frame48_verify_checksum(const void *content)
return sd_frame48_calc_checksum(content)
== ((const uint8_t *)content)[F48_CONTENT_LENGTH];
}
+
+bool sd_frame136_verify_checksum(const void *content)
+{
+ return sd_frame136_calc_checksum(content)
+ == ((const uint8_t *)content)[F136_CONTENT_LENGTH];
+}
@@ -23,6 +23,17 @@ static void test_sd_response_frame136_crc7(void)
sizeof(buf));
buf[15] = sd_frame136_calc_checksum(buf);
g_assert_cmphex(buf[15], ==, 0xad);
+
+ g_assert_true(sd_frame136_verify_checksum(buf));
+}
+
+static void test_sd_verify_cksum_frame136(void)
+{
+ uint8_t buf[16];
+
+ memset(buf, 69, sizeof(buf));
+ buf[15] = sd_frame136_calc_checksum(buf);
+ g_assert_true(sd_frame136_verify_checksum(buf));
}
int main(int argc, char *argv[])
@@ -30,6 +41,7 @@ int main(int argc, char *argv[])
g_test_init(&argc, &argv, NULL);
qtest_add_func("sd/prepare_resp136_crc7", test_sd_response_frame136_crc7);
+ qtest_add_func("sd/verify_cksum_frame136", test_sd_verify_cksum_frame136);
return g_test_run();
}
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> --- include/hw/sd/sd.h | 10 ++++++++++ hw/sd/sdmmc-internal.c | 6 ++++++ tests/sdcard-test.c | 12 ++++++++++++ 3 files changed, 28 insertions(+)