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// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Authors: Keyon Jie <yang.jie@linux.intel.com>
#include <linux/io.h>
#include <sound/hdaudio.h>
#include "../sof-priv.h"
#include "hda.h"
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
static const struct hdac_bus_ops bus_ops = {
.command = snd_hdac_bus_send_cmd,
.get_response = snd_hdac_bus_get_response,
};
#endif
/*
* This can be used for both with/without hda link support.
*/
void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_ext_bus_ops *ext_ops)
{
memset(bus, 0, sizeof(*bus));
bus->dev = dev;
INIT_LIST_HEAD(&bus->stream_list);
bus->irq = -1;
bus->ext_ops = ext_ops;
/*
* There is only one HDA bus atm. keep the index as 0.
* Need to fix when there are more than one HDA bus.
*/
bus->idx = 0;
spin_lock_init(&bus->reg_lock);
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
INIT_LIST_HEAD(&bus->codec_list);
INIT_LIST_HEAD(&bus->hlink_list);
mutex_init(&bus->cmd_mutex);
mutex_init(&bus->lock);
bus->ops = &bus_ops;
INIT_WORK(&bus->unsol_work, snd_hdac_bus_process_unsol_events);
bus->cmd_dma_state = true;
#endif
}
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