blob: d7d338b36d2172f24421f76fad780388546f10b4 [file] [log] [blame]
// Copyright 2023 Google LLC.
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
#include "sw/device/lib/dif/dif_i2s.h"
#include "i2s_regs.h" // Generated.
#include "sw/device/lib/base/bitfield.h"
#include "sw/device/lib/base/macros.h"
#include "sw/device/lib/dif/dif_base.h"
dif_result_t dif_i2s_rxfifo_empty(const dif_i2s_t* i2s, bool* empty) {
if (!i2s || !empty) {
return kDifBadArg;
}
uint32_t reg_val = mmio_region_read32(i2s->base_addr, I2S_STATUS_REG_OFFSET);
*empty = bitfield_bit32_read(reg_val, I2S_STATUS_RXEMPTY_BIT);
return kDifOk;
}
dif_result_t dif_i2s_txfifo_full(const dif_i2s_t* i2s, bool* full) {
if (!i2s || !full) {
return kDifBadArg;
}
uint32_t reg_val = mmio_region_read32(i2s->base_addr, I2S_STATUS_REG_OFFSET);
*full = bitfield_bit32_read(reg_val, I2S_STATUS_TXFULL_BIT);
return kDifOk;
}