/* Internal error of TPM command library */
#define TPM_LIB_ERROR ((u32)~0u)
-/**
- * tpm_open() - Request access to locality 0 for the caller
- *
- * After all commands have been completed the caller is supposed to
- * call tpm_close().
- *
- * Returns 0 on success, -ve on failure.
- */
-int tpm_open(struct udevice *dev);
-
-/**
- * tpm_close() - Close the current session
- *
- * Releasing the locked locality. Returns 0 on success, -ve 1 on
- * failure (in case lock removal did not succeed).
- */
-int tpm_close(struct udevice *dev);
+/* To make strings of commands more easily */
+#define __MSB(x) ((x) >> 8)
+#define __LSB(x) ((x) & 0xFF)
+#define tpm_u16(x) __MSB(x), __LSB(x)
+#define tpm_u32(x) tpm_u16((x) >> 16), tpm_u16((x) & 0xFFFF)
/**
* Pack data into a byte string. The data types are specified in
* is a bidirectional
* @return return code of the TPM response
*/
-u32 tpm_sendrecv_command(const void *command, void *response, size_t *size_ptr);
+u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
+ void *response, size_t *size_ptr);
#endif /* __TPM_UTILS_H */