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()
681 	struct tpm_chip *chip;  in tpm_pcr_read()  local
684 	chip = tpm_chip_find_get(chip_num);  in tpm_pcr_read()
685 	if (chip == NULL)  in tpm_pcr_read()
687 	if (chip->flags & TPM_CHIP_FLAG_TPM2)  in tpm_pcr_read()
688 		rc = tpm2_pcr_read(chip, pcr_idx, res_buf);  in tpm_pcr_read()
690 		rc = tpm_pcr_read_dev(chip, pcr_idx, res_buf);  in tpm_pcr_read()
691 	tpm_chip_put(chip);  in tpm_pcr_read()
718 	struct tpm_chip *chip;  in tpm_pcr_extend()  local
720 	chip = tpm_chip_find_get(chip_num);  in tpm_pcr_extend()
721 	if (chip == NULL)  in tpm_pcr_extend()
724 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_pcr_extend()
725 		rc = tpm2_pcr_extend(chip, pcr_idx, hash);  in tpm_pcr_extend()
726 		tpm_chip_put(chip);  in tpm_pcr_extend()
733 	rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,  in tpm_pcr_extend()
736 	tpm_chip_put(chip);  in tpm_pcr_extend()
749 int tpm_do_selftest(struct tpm_chip *chip)  in tpm_do_selftest()  argument
757 	duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);  in tpm_do_selftest()
761 	rc = tpm_continue_selftest(chip);  in tpm_do_selftest()
772 		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);  in tpm_do_selftest()
777 			dev_info(chip->pdev, HW_ERR "TPM command timed out during continue self test");  in tpm_do_selftest()
787 			dev_info(chip->pdev,  in tpm_do_selftest()
806 	struct tpm_chip *chip;  in tpm_send()  local
809 	chip = tpm_chip_find_get(chip_num);  in tpm_send()
810 	if (chip == NULL)  in tpm_send()
813 	rc = tpm_transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd");  in tpm_send()
815 	tpm_chip_put(chip);  in tpm_send()
820 static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,  in wait_for_tpm_stat_cond()  argument
823 	u8 status = chip->ops->status(chip);  in wait_for_tpm_stat_cond()
828 	if (check_cancel && chip->ops->req_canceled(chip, status)) {  in wait_for_tpm_stat_cond()
835 int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,  in wait_for_tpm_stat()  argument
844 	status = chip->ops->status(chip);  in wait_for_tpm_stat()
850 	if (chip->vendor.irq) {  in wait_for_tpm_stat()
856 			wait_for_tpm_stat_cond(chip, mask, check_cancel,  in wait_for_tpm_stat()
871 			status = chip->ops->status(chip);  in wait_for_tpm_stat()
895 	struct tpm_chip *chip = dev_get_drvdata(dev);  in tpm_pm_suspend()  local
901 	if (chip == NULL)  in tpm_pm_suspend()
904 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_pm_suspend()
905 		tpm2_shutdown(chip, TPM2_SU_STATE);  in tpm_pm_suspend()
915 		rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,  in tpm_pm_suspend()
922 		rc = tpm_transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, NULL);  in tpm_pm_suspend()
940 		dev_err(chip->pdev,  in tpm_pm_suspend()
943 		dev_warn(chip->pdev, "TPM savestate took %dms\n",  in tpm_pm_suspend()
956 	struct tpm_chip *chip = dev_get_drvdata(dev);  in tpm_pm_resume()  local
958 	if (chip == NULL)  in tpm_pm_resume()
982 	struct tpm_chip *chip;  in tpm_get_random()  local
991 	chip = tpm_chip_find_get(chip_num);  in tpm_get_random()
992 	if (chip == NULL)  in tpm_get_random()
995 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {  in tpm_get_random()
996 		err = tpm2_get_random(chip, out, max);  in tpm_get_random()
997 		tpm_chip_put(chip);  in tpm_get_random()
1005 		err = tpm_transmit_cmd(chip, &tpm_cmd,  in tpm_get_random()
1019 	tpm_chip_put(chip);  in tpm_get_random()