dif_rv_plic_autogen.c

// Copyright lowRISC contributors (OpenTitan project).
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
 
 
 
 
 
 
 
// THIS FILE HAS BEEN GENERATED, DO NOT EDIT MANUALLY. COMMAND:
// util/autogen_dif.py -i
// hw/top_earlgrey/ip_autogen/rv_plic/data/rv_plic.hjson -o
// bazel-out/k8-fastbuild/bin/sw/device/lib/dif/autogen
 
 
#include <stdint.h>
 
#include "sw/device/lib/dif/dif_base.h"
#include "sw/device/lib/dif/autogen/dif_rv_plic_autogen.h"
 
#include "hw/top/rv_plic_regs.h"  // Generated.
 
 
OT_WARN_UNUSED_RESULT
dif_result_t dif_rv_plic_init(
  mmio_region_t base_addr,
  dif_rv_plic_t *rv_plic) {
  if (rv_plic == NULL) {
    return kDifBadArg;
  }
 
  rv_plic->dt = kDtRvPlicCount;
  rv_plic->base_addr = base_addr;
 
  return kDifOk;
}
 
OT_WARN_UNUSED_RESULT
dif_result_t dif_rv_plic_init_from_dt(
  dt_rv_plic_t dt,
  dif_rv_plic_t *rv_plic) {
  if (rv_plic == NULL) {
    return kDifBadArg;
  }
 
  rv_plic->dt = dt;
  rv_plic->base_addr = mmio_region_from_addr(dt_rv_plic_primary_reg_block(dt));
 
  return kDifOk;
}
 
dif_result_t dif_rv_plic_get_dt(
  const dif_rv_plic_t *rv_plic,
  dt_rv_plic_t *dt) {
  if ((int)rv_plic->dt == kDtRvPlicCount || dt == NULL) {
    return kDifBadArg;
  }
  *dt = rv_plic->dt;
  return kDifOk;
}
 
  dif_result_t dif_rv_plic_alert_force(
    const dif_rv_plic_t *rv_plic,
    dif_rv_plic_alert_t alert) {
  if (rv_plic == NULL) {
    return kDifBadArg;
  }
 
  bitfield_bit32_index_t alert_idx;
  switch (alert) {
    case kDifRvPlicAlertFatalFault:
      alert_idx = RV_PLIC_ALERT_TEST_FATAL_FAULT_BIT;
      break;
    default:
      return kDifBadArg;
  }
 
  uint32_t alert_test_reg = bitfield_bit32_write(0, alert_idx, true);
  mmio_region_write32(
    rv_plic->base_addr,
    (ptrdiff_t)RV_PLIC_ALERT_TEST_REG_OFFSET,
    alert_test_reg);
 
 
  return kDifOk;
}