dif_pwm_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/pwm/data/pwm.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_pwm_autogen.h"
 
#include "pwm_regs.h"  // Generated.
 
 
OT_WARN_UNUSED_RESULT
dif_result_t dif_pwm_init(
  mmio_region_t base_addr,
  dif_pwm_t *pwm) {
  if (pwm == NULL) {
    return kDifBadArg;
  }
 
  pwm->dt = kDtPwmCount;
  pwm->base_addr = base_addr;
 
  return kDifOk;
}
 
OT_WARN_UNUSED_RESULT
dif_result_t dif_pwm_init_from_dt(
  dt_pwm_t dt,
  dif_pwm_t *pwm) {
  if (pwm == NULL) {
    return kDifBadArg;
  }
 
  pwm->dt = dt;
  pwm->base_addr = mmio_region_from_addr(dt_pwm_primary_reg_block(dt));
 
  return kDifOk;
}
 
dif_result_t dif_pwm_get_dt(
  const dif_pwm_t *pwm,
  dt_pwm_t *dt) {
  if (pwm->dt == kDtPwmCount || dt == NULL) {
    return kDifBadArg;
  }
  *dt = pwm->dt;
  return kDifOk;
}
 
  dif_result_t dif_pwm_alert_force(
    const dif_pwm_t *pwm,
    dif_pwm_alert_t alert) {
  if (pwm == NULL) {
    return kDifBadArg;
  }
 
  bitfield_bit32_index_t alert_idx;
  switch (alert) {
    case kDifPwmAlertFatalFault:
      alert_idx = PWM_ALERT_TEST_FATAL_FAULT_BIT;
      break;
    default:
      return kDifBadArg;
  }
 
  uint32_t alert_test_reg = bitfield_bit32_write(0, alert_idx, true);
  mmio_region_write32(
    pwm->base_addr,
    (ptrdiff_t)PWM_ALERT_TEST_REG_OFFSET,
    alert_test_reg);
 
 
  return kDifOk;
}