308 unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,  in tpm_calc_ordinal_duration()  argument
320 		duration = chip->vendor.duration[duration_idx];  in tpm_calc_ordinal_duration()
331 ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,  in tpm_transmit()  argument
346 		dev_err(chip->pdev,  in tpm_transmit()
351 	mutex_lock(&chip->tpm_mutex);  in tpm_transmit()
353 	rc = chip->ops->send(chip, (u8 *) buf, count);  in tpm_transmit()
355 		dev_err(chip->pdev,  in tpm_transmit()
360 	if (chip->vendor.irq)  in tpm_transmit()
363 	if (chip->flags & TPM_CHIP_FLAG_TPM2)  in tpm_transmit()
364 		stop = jiffies + tpm2_calc_ordinal_duration(chip, ordinal);  in tpm_transmit()
366 		stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);  in tpm_transmit()
368 		u8 status = chip->ops->status(chip);  in tpm_transmit()
369 		if ((status & chip->ops->req_complete_mask) ==  in tpm_transmit()
370 		    chip->ops->req_complete_val)  in tpm_transmit()
373 		if (chip->ops->req_canceled(chip, status)) {  in tpm_transmit()
374 			dev_err(chip->pdev, "Operation Canceled\n");  in tpm_transmit()
383 	chip->ops->cancel(chip);  in tpm_transmit()
384 	dev_err(chip->pdev, "Operation Timed out\n");  in tpm_transmit()
389 	rc = chip->ops->recv(chip, (u8 *) buf, bufsiz);  in tpm_transmit()
391 		dev_err(chip->pdev,  in tpm_transmit()
394 	mutex_unlock(&chip->tpm_mutex);  in tpm_transmit()
401 ssize_t tpm_transmit_cmd(struct tpm_chip *chip, void *cmd,  in tpm_transmit_cmd()  argument
407 	len = tpm_transmit(chip, (u8 *) cmd, len);  in tpm_transmit_cmd()
417 		dev_err(chip->pdev, "A TPM error (%d) occurred %s\n", err,  in tpm_transmit_cmd()
438 	struct tpm_chip *chip = dev_get_drvdata(dev);  in tpm_getcap()  local
455 	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);  in tpm_getcap()
461 void tpm_gen_interrupt(struct tpm_chip *chip)  in tpm_gen_interrupt()  argument
471 	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,  in tpm_gen_interrupt()
486 static int tpm_startup(struct tpm_chip *chip, __be16 startup_type)  in tpm_startup()  argument
492 	return tpm_transmit_cmd(chip, &start_cmd, TPM_INTERNAL_RESULT_SIZE,  in tpm_startup()
496 int tpm_get_timeouts(struct tpm_chip *chip)  in tpm_get_timeouts()  argument
508 	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, NULL);  in tpm_get_timeouts()
513 		dev_info(chip->pdev, "Issuing TPM_STARTUP");  in tpm_get_timeouts()
514 		if (tpm_startup(chip, TPM_ST_CLEAR))  in tpm_get_timeouts()
521 		rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,  in tpm_get_timeouts()
525 		dev_err(chip->pdev,  in tpm_get_timeouts()
546 	if (chip->ops->update_timeouts != NULL)  in tpm_get_timeouts()
547 		chip->vendor.timeout_adjusted =  in tpm_get_timeouts()
548 			chip->ops->update_timeouts(chip, new_timeout);  in tpm_get_timeouts()
550 	if (!chip->vendor.timeout_adjusted) {  in tpm_get_timeouts()
558 			chip->vendor.timeout_adjusted = true;  in tpm_get_timeouts()
563 	if (chip->vendor.timeout_adjusted) {  in tpm_get_timeouts()
564 		dev_info(chip->pdev,  in tpm_get_timeouts()
572 	chip->vendor.timeout_a = usecs_to_jiffies(new_timeout[0]);  in tpm_get_timeouts()
573 	chip->vendor.timeout_b = usecs_to_jiffies(new_timeout[1]);  in tpm_get_timeouts()
574 	chip->vendor.timeout_c = usecs_to_jiffies(new_timeout[2]);  in tpm_get_timeouts()
575 	chip->vendor.timeout_d = usecs_to_jiffies(new_timeout[3]);  in tpm_get_timeouts()
583 	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,  in tpm_get_timeouts()
594 	chip->vendor.duration[TPM_SHORT] =  in tpm_get_timeouts()
596 	chip->vendor.duration[TPM_MEDIUM] =  in tpm_get_timeouts()
598 	chip->vendor.duration[TPM_LONG] =  in tpm_get_timeouts()
606 	if (chip->vendor.duration[TPM_SHORT] < (HZ / 100)) {  in tpm_get_timeouts()
607 		chip->vendor.duration[TPM_SHORT] = HZ;  in tpm_get_timeouts()
608 		chip->vendor.duration[TPM_MEDIUM] *= 1000;  in tpm_get_timeouts()
609 		chip->vendor.duration[TPM_LONG] *= 1000;  in tpm_get_timeouts()
610 		chip->vendor.duration_adjusted = true;  in tpm_get_timeouts()
611 		dev_info(chip->pdev, "Adjusting TPM timeout parameters.");  in tpm_get_timeouts()
633 static int tpm_continue_selftest(struct tpm_chip *chip)  in tpm_continue_selftest()  argument
639 	rc = tpm_transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE,  in tpm_continue_selftest()
652 int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)  in tpm_pcr_read_dev()  argument
659 	rc = tpm_transmit_cmd(chip, &cmd, READ_PCR_RESULT_SIZE,  in tpm_pcr_read_dev()
677 	struct tpm_chip *chip;  in tpm_is_tpm2()  local
680 	chip = tpm_chip_find_get(chip_num);  in tpm_is_tpm2()
681 	if (chip == NULL)  in tpm_is_tpm2()
684 	rc = (chip->flags & TPM_CHIP_FLAG_TPM2) != 0;  in tpm_is_tpm2()
686 	tpm_chip_put(chip);  in tpm_is_tpm2()
705 	struct tpm_chip *chip;  in tpm_pcr_read()  local
708 	chip = tpm_chip_find_get(chip_num);  in tpm_pcr_read()
709 	if (chip == NULL)  in tpm_pcr_read()
711 	if (chip->flags & TPM_CHIP_FLAG_TPM2)  in tpm_pcr_read()
712 		rc = tpm2_pcr_read(chip, pcr_idx, res_buf);  in tpm_pcr_read()
714 		rc = tpm_pcr_read_dev(chip, pcr_idx, res_buf);  in tpm_pcr_read()
715 	tpm_chip_put(chip);  in tpm_pcr_read()
742 	struct tpm_chip *chip;  in tpm_pcr_extend()  local
744 	chip = tpm_chip_find_get(chip_num);  in tpm_pcr_extend()
745 	if (chip == NULL)  in tpm_pcr_extend()
748 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_pcr_extend()
749 		rc = tpm2_pcr_extend(chip, pcr_idx, hash);  in tpm_pcr_extend()
750 		tpm_chip_put(chip);  in tpm_pcr_extend()
757 	rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,  in tpm_pcr_extend()
760 	tpm_chip_put(chip);  in tpm_pcr_extend()
773 int tpm_do_selftest(struct tpm_chip *chip)  in tpm_do_selftest()  argument
781 	duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);  in tpm_do_selftest()
785 	rc = tpm_continue_selftest(chip);  in tpm_do_selftest()
796 		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);  in tpm_do_selftest()
801 			dev_info(chip->pdev, HW_ERR "TPM command timed out during continue self test");  in tpm_do_selftest()
811 			dev_info(chip->pdev,  in tpm_do_selftest()
830 	struct tpm_chip *chip;  in tpm_send()  local
833 	chip = tpm_chip_find_get(chip_num);  in tpm_send()
834 	if (chip == NULL)  in tpm_send()
837 	rc = tpm_transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd");  in tpm_send()
839 	tpm_chip_put(chip);  in tpm_send()
844 static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,  in wait_for_tpm_stat_cond()  argument
847 	u8 status = chip->ops->status(chip);  in wait_for_tpm_stat_cond()
852 	if (check_cancel && chip->ops->req_canceled(chip, status)) {  in wait_for_tpm_stat_cond()
859 int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,  in wait_for_tpm_stat()  argument
868 	status = chip->ops->status(chip);  in wait_for_tpm_stat()
874 	if (chip->vendor.irq) {  in wait_for_tpm_stat()
880 			wait_for_tpm_stat_cond(chip, mask, check_cancel,  in wait_for_tpm_stat()
895 			status = chip->ops->status(chip);  in wait_for_tpm_stat()
919 	struct tpm_chip *chip = dev_get_drvdata(dev);  in tpm_pm_suspend()  local
925 	if (chip == NULL)  in tpm_pm_suspend()
928 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_pm_suspend()
929 		tpm2_shutdown(chip, TPM2_SU_STATE);  in tpm_pm_suspend()
939 		rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,  in tpm_pm_suspend()
946 		rc = tpm_transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, NULL);  in tpm_pm_suspend()
964 		dev_err(chip->pdev,  in tpm_pm_suspend()
967 		dev_warn(chip->pdev, "TPM savestate took %dms\n",  in tpm_pm_suspend()
980 	struct tpm_chip *chip = dev_get_drvdata(dev);  in tpm_pm_resume()  local
982 	if (chip == NULL)  in tpm_pm_resume()
1006 	struct tpm_chip *chip;  in tpm_get_random()  local
1015 	chip = tpm_chip_find_get(chip_num);  in tpm_get_random()
1016 	if (chip == NULL)  in tpm_get_random()
1019 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_get_random()
1020 		err = tpm2_get_random(chip, out, max);  in tpm_get_random()
1021 		tpm_chip_put(chip);  in tpm_get_random()
1029 		err = tpm_transmit_cmd(chip, &tpm_cmd,  in tpm_get_random()
1043 	tpm_chip_put(chip);  in tpm_get_random()
1060 	struct tpm_chip *chip;  in tpm_seal_trusted()  local
1063 	chip = tpm_chip_find_get(chip_num);  in tpm_seal_trusted()
1064 	if (chip == NULL || !(chip->flags & TPM_CHIP_FLAG_TPM2))  in tpm_seal_trusted()
1067 	rc = tpm2_seal_trusted(chip, payload, options);  in tpm_seal_trusted()
1069 	tpm_chip_put(chip);  in tpm_seal_trusted()
1086 	struct tpm_chip *chip;  in tpm_unseal_trusted()  local
1089 	chip = tpm_chip_find_get(chip_num);  in tpm_unseal_trusted()
1090 	if (chip == NULL || !(chip->flags & TPM_CHIP_FLAG_TPM2))  in tpm_unseal_trusted()
1093 	rc = tpm2_unseal_trusted(chip, payload, options);  in tpm_unseal_trusted()
1095 	tpm_chip_put(chip);  in tpm_unseal_trusted()