char/tpm/tpm2-cmd.c

14 #include "tpm.h"
49  * @ordinal: TPM command ordinal.
120  * @chip:    TPM chip to use.
121  * @ordinal: TPM command ordinal.
154  * @chip:	TPM chip to use.
229  * @chip:	TPM chip to use.
278  * tpm2_get_random() - get random bytes from the TPM RNG
286  *   -errno otherwise (positive TPM return codes are masked to -EIO)
345  * @chip:	TPM chip to use
384  *   -errno or a TPM return code otherwise
420  * tpm2_shutdown() - send a TPM shutdown command
422  * Sends a TPM shutdown command. The shutdown command is used in call
438 	tpm_transmit_cmd(chip, &buf, 0, "stopping the TPM");  in tpm2_shutdown()
445  * @chip: TPM chip to use
449  * The TPM can either run all self tests synchronously and then return
481  * tpm2_probe() - probe for the TPM 2.0 protocol
484  * Send an idempotent TPM 2.0 command and see whether there is TPM2 chip in the
505 	/* We ignore TPM return codes on purpose. */  in tpm2_probe()
571 	rc = tpm_transmit_cmd(chip, &buf, 9, "get tpm pcr allocation");  in tpm2_get_pcr_allocation()
697  * tpm2_startup - turn on the TPM
698  * @chip: TPM chip to use
700  * Normally the firmware should start the TPM. This function is provided as a
702  * example when a TPM emulator is used.
712 	dev_info(&chip->dev, "starting up the TPM manually\n");  in tpm2_startup()
719 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");  in tpm2_startup()
726  * tpm2_auto_startup - Perform the standard automatic TPM initialization
728  * @chip: TPM chip to use
757 			 "TPM in field failure mode, requires firmware upgrade\n");  in tpm2_auto_startup()
764 	 * Infineon TPM in field upgrade mode will return no data for the number  in tpm2_auto_startup()
768 		dev_info(&chip->dev, "TPM in field upgrade mode, requires firmware upgrade\n");  in tpm2_auto_startup()