sw/device/lib/dif/dif_ml_top.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_ml_top.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 "ml_top_regs.h"  // Generated.

dif_result_t dif_ml_top_reset_ctrl_en(const dif_ml_top_t *ml_top) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(
      ml_top->base_addr, ML_TOP_CTRL_REG_OFFSET, ML_TOP_CTRL_REG_RESVAL);
  return kDifOk;
}

dif_result_t dif_ml_top_release_ctrl_en(const dif_ml_top_t *ml_top) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(ml_top->base_addr, ML_TOP_CTRL_REG_OFFSET, 0x0);
  return kDifOk;
}

dif_result_t dif_ml_top_resume_ctrl_en(const dif_ml_top_t *ml_top, uint32_t pc) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }
  if (pc >= 0x400000) {
    return kDifBadArg;
  }
  uint32_t ctrl_en = 0;
  ctrl_en = bitfield_field32_write(ctrl_en, ML_TOP_CTRL_PC_START_FIELD, pc);
  mmio_region_write32(ml_top->base_addr, ML_TOP_CTRL_REG_OFFSET, ctrl_en);
  return kDifOk;
}

dif_result_t dif_ml_top_read_ctrl_en(const dif_ml_top_t *ml_top, uint32_t *result) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }

  *result = mmio_region_read32(ml_top->base_addr, ML_TOP_CTRL_REG_OFFSET);
  return kDifOk;
}

dif_result_t dif_ml_top_reset_intr_en(const dif_ml_top_t *ml_top) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }

  mmio_region_write32(
      ml_top->base_addr, ML_TOP_INTR_ENABLE_REG_OFFSET, ML_TOP_INTR_ENABLE_REG_RESVAL);
  return kDifOk;
}

dif_result_t dif_ml_top_read_intr_en(const dif_ml_top_t *ml_top, uint32_t *result) {
  if (ml_top == NULL) {
    return kDifBadArg;
  }

  *result = mmio_region_read32(ml_top->base_addr, ML_TOP_INTR_ENABLE_REG_OFFSET);
  return kDifOk;
}