90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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//
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// This file is provided under a dual BSD/GPLv2 license. When using or
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// redistributing this file, you may do so under either license.
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//
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// Copyright(c) 2022 Intel Corporation. All rights reserved.
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//
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/*
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* Management of HDaudio multi-link (capabilities, power, coupling)
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*/
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#include <sound/hdaudio_ext.h>
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#include <sound/hda_register.h>
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#include <linux/acpi.h>
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#include <linux/module.h>
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#include <linux/soundwire/sdw.h>
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#include <linux/soundwire/sdw_intel.h>
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#include <sound/intel-dsp-config.h>
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#include <sound/intel-nhlt.h>
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#include <sound/sof.h>
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#include <sound/sof/xtensa.h>
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#include "../sof-audio.h"
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#include "../sof-pci-dev.h"
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#include "../ops.h"
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#include "hda.h"
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#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
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void hda_bus_ml_get_capabilities(struct hdac_bus *bus)
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{
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if (bus->mlcap)
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snd_hdac_ext_bus_get_ml_capabilities(bus);
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}
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void hda_bus_ml_free(struct hdac_bus *bus)
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{
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struct hdac_ext_link *hlink;
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if (!bus->mlcap)
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return;
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while (!list_empty(&bus->hlink_list)) {
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hlink = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
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list_del(&hlink->list);
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kfree(hlink);
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}
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}
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void hda_bus_ml_put_all(struct hdac_bus *bus)
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{
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struct hdac_ext_link *hlink;
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list_for_each_entry(hlink, &bus->hlink_list, list)
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snd_hdac_ext_bus_link_put(bus, hlink);
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}
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void hda_bus_ml_reset_losidv(struct hdac_bus *bus)
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{
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struct hdac_ext_link *hlink;
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/* Reset stream-to-link mapping */
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list_for_each_entry(hlink, &bus->hlink_list, list)
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writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
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}
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int hda_bus_ml_resume(struct hdac_bus *bus)
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{
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struct hdac_ext_link *hlink;
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int ret;
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/* power up links that were active before suspend */
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list_for_each_entry(hlink, &bus->hlink_list, list) {
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if (hlink->ref_count) {
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ret = snd_hdac_ext_bus_link_power_up(hlink);
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if (ret < 0)
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return ret;
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}
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}
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return 0;
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}
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int hda_bus_ml_suspend(struct hdac_bus *bus)
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{
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return snd_hdac_ext_bus_link_power_down_all(bus);
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}
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#endif
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