tpm: Implement state command for Cr50
Add a vendor-specific TPM2 command for this and implement it for Cr50.
Note: This is not part of the TPM spec, but is a Cr50 extension.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/tpm-v2.h b/include/tpm-v2.h
index e79c90b..36c6ac0 100644
--- a/include/tpm-v2.h
+++ b/include/tpm-v2.h
@@ -658,4 +658,17 @@
u32 tpm2_submit_command(struct udevice *dev, const u8 *sendbuf,
u8 *recvbuf, size_t *recv_size);
+/**
+ * tpm_cr50_report_state() - Report the Cr50 internal state
+ *
+ * @dev: TPM device
+ * @vendor_cmd: Vendor command number to send
+ * @vendor_subcmd: Vendor sub-command number to send
+ * @recvbuf: Buffer to save the response to
+ * @recv_size: Pointer to the size of the response buffer
+ * Return: result of the operation
+ */
+u32 tpm2_report_state(struct udevice *dev, uint vendor_cmd, uint vendor_subcmd,
+ u8 *recvbuf, size_t *recv_size);
+
#endif /* __TPM_V2_H */