sw/device/lib/dif/dif_smc_ctrl.c

/*
 * Copyright 2023 Google LLC
 * Copyright lowRISC contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#include "sw/device/lib/dif/dif_smc_ctrl.h"

#include <stddef.h>

#include "sw/device/lib/base/bitfield.h"
#include "sw/device/lib/base/macros.h"
#include "sw/device/lib/dif/dif_base.h"

#include "smc_ctrl_regs.h"  // Generated.


dif_result_t dif_smc_ctrl_set_regwen(const dif_smc_ctrl_t *smc_ctrl) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_REGWEN_REG_OFFSET, 1);
  return kDifOk;
}

dif_result_t dif_smc_ctrl_clear_regwen(const dif_smc_ctrl_t *smc_ctrl) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_REGWEN_REG_OFFSET, 0);
  return kDifOk;
}

dif_result_t dif_smc_ctrl_read_regwen(const dif_smc_ctrl_t *smc_ctrl, uint32_t *result) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  *result = mmio_region_read32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_REGWEN_REG_OFFSET);
  return kDifOk;
}

dif_result_t dif_smc_ctrl_set_en(const dif_smc_ctrl_t *smc_ctrl) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_CTRL_REG_OFFSET, 1);
  return kDifOk;
}

dif_result_t dif_smc_ctrl_clear_en(const dif_smc_ctrl_t *smc_ctrl) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_CTRL_REG_OFFSET, 0);
  return kDifOk;
}

dif_result_t dif_smc_ctrl_read_en(const dif_smc_ctrl_t *smc_ctrl, uint32_t *result) {

  if (smc_ctrl == NULL) {
    return kDifBadArg;
  }

  *result = mmio_region_read32(smc_ctrl->base_addr, SMC_CTRL_SMC_BOOT_EN_CTRL_REG_OFFSET);
  return kDifOk;
}