common/scp03.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2021, Foundries.IO
   4  *
   5  */
   6
   7 #include <common.h>
   8 #include <scp03.h>
   9 #include <tee.h>
  10 #include <tee/optee_ta_scp03.h>
  11
  12 static int scp03_enable(bool provision)
  13 {
  14         const struct tee_optee_ta_uuid uuid = PTA_SCP03_UUID;
  15         struct tee_open_session_arg session;
  16         struct tee_invoke_arg invoke;
  17         struct tee_param param;
  18         struct udevice *tee = NULL;
  19
  20         tee = tee_find_device(tee, NULL, NULL, NULL);
  21         if (!tee)
  22                 return -ENODEV;
  23
  24         memset(&session, 0, sizeof(session));
  25         tee_optee_ta_uuid_to_octets(session.uuid, &uuid);
  26         if (tee_open_session(tee, &session, 0, NULL))
  27                 return -ENXIO;
  28
  29         memset(&param, 0, sizeof(param));
  30         param.attr = TEE_PARAM_ATTR_TYPE_VALUE_INPUT;
  31         param.u.value.a = provision;
  32
  33         memset(&invoke, 0, sizeof(invoke));
  34         invoke.func = PTA_CMD_ENABLE_SCP03;
  35         invoke.session = session.session;
  36
  37         if (tee_invoke_func(tee, &invoke, 1, &param))
  38                 return -EIO;
  39
  40         tee_close_session(tee, session.session);
  41
  42         return 0;
  43 }
  44
  45 int tee_enable_scp03(void)
  46 {
  47         return scp03_enable(false);
  48 }
  49
  50 int tee_provision_scp03(void)
  51 {
  52         return scp03_enable(true);
  53 }