2019-04-12 16:08:57 +00:00
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// SPDX-License-Identifier: (GPL-2.0 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) 2018 Intel Corporation. All rights reserved.
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//
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// Authors: Keyon Jie <yang.jie@linux.intel.com>
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//
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#include <sound/pcm_params.h>
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#include <sound/hdaudio_ext.h>
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#include "../sof-priv.h"
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2019-12-04 21:15:51 +00:00
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#include "../sof-audio.h"
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2019-04-12 16:08:57 +00:00
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#include "hda.h"
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#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
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struct hda_pipe_params {
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u8 host_dma_id;
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u8 link_dma_id;
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u32 ch;
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u32 s_freq;
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u32 s_fmt;
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u8 linktype;
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snd_pcm_format_t format;
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int link_index;
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int stream;
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unsigned int host_bps;
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unsigned int link_bps;
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};
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/*
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2019-06-12 17:23:36 +00:00
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* This function checks if the host dma channel corresponding
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* to the link DMA stream_tag argument is assigned to one
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* of the FEs connected to the BE DAI.
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2019-04-12 16:08:57 +00:00
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*/
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2019-06-12 17:23:36 +00:00
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static bool hda_check_fes(struct snd_soc_pcm_runtime *rtd,
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int dir, int stream_tag)
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2019-04-12 16:08:57 +00:00
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{
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2019-06-12 17:23:36 +00:00
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struct snd_pcm_substream *fe_substream;
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struct hdac_stream *fe_hstream;
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struct snd_soc_dpcm *dpcm;
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for_each_dpcm_fe(rtd, dir, dpcm) {
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fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, dir);
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fe_hstream = fe_substream->runtime->private_data;
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if (fe_hstream->stream_tag == stream_tag)
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return true;
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}
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2019-04-12 16:08:57 +00:00
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2019-06-12 17:23:36 +00:00
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return false;
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}
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static struct hdac_ext_stream *
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hda_link_stream_assign(struct hdac_bus *bus,
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struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct sof_intel_hda_stream *hda_stream;
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struct hdac_ext_stream *res = NULL;
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struct hdac_stream *stream = NULL;
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2019-04-12 16:08:57 +00:00
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2019-06-12 17:23:36 +00:00
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int stream_dir = substream->stream;
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if (!bus->ppcap) {
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dev_err(bus->dev, "stream type not supported\n");
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return NULL;
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2019-04-12 16:08:57 +00:00
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}
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2019-06-12 17:23:36 +00:00
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list_for_each_entry(stream, &bus->stream_list, list) {
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struct hdac_ext_stream *hstream =
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stream_to_hdac_ext_stream(stream);
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if (stream->direction != substream->stream)
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continue;
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hda_stream = hstream_to_sof_hda_stream(hstream);
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2019-06-12 17:23:37 +00:00
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/* check if link is available */
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2019-06-12 17:23:36 +00:00
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if (!hstream->link_locked) {
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if (stream->opened) {
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/*
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* check if the stream tag matches the stream
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* tag of one of the connected FEs
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*/
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if (hda_check_fes(rtd, stream_dir,
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stream->stream_tag)) {
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res = hstream;
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break;
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}
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} else {
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res = hstream;
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2019-06-12 17:23:37 +00:00
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/*
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* This must be a hostless stream.
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* So reserve the host DMA channel.
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*/
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hda_stream->host_reserved = 1;
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2019-06-12 17:23:36 +00:00
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break;
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}
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2019-04-12 16:08:57 +00:00
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}
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2019-06-12 17:23:36 +00:00
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}
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2019-04-12 16:08:57 +00:00
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2019-06-12 17:23:36 +00:00
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if (res) {
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/*
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* Decouple host and link DMA. The decoupled flag
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* is updated in snd_hdac_ext_stream_decouple().
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*/
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if (!res->decoupled)
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snd_hdac_ext_stream_decouple(bus, res, true);
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spin_lock_irq(&bus->reg_lock);
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res->link_locked = 1;
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res->link_substream = substream;
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spin_unlock_irq(&bus->reg_lock);
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2019-04-12 16:08:57 +00:00
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}
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2019-06-12 17:23:36 +00:00
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return res;
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2019-04-12 16:08:57 +00:00
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}
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static int hda_link_dma_params(struct hdac_ext_stream *stream,
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struct hda_pipe_params *params)
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{
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struct hdac_stream *hstream = &stream->hstream;
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unsigned char stream_tag = hstream->stream_tag;
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struct hdac_bus *bus = hstream->bus;
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struct hdac_ext_link *link;
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unsigned int format_val;
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snd_hdac_ext_stream_decouple(bus, stream, true);
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snd_hdac_ext_link_stream_reset(stream);
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format_val = snd_hdac_calc_stream_format(params->s_freq, params->ch,
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params->format,
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params->link_bps, 0);
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dev_dbg(bus->dev, "format_val=%d, rate=%d, ch=%d, format=%d\n",
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format_val, params->s_freq, params->ch, params->format);
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snd_hdac_ext_link_stream_setup(stream, format_val);
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if (stream->hstream.direction == SNDRV_PCM_STREAM_PLAYBACK) {
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list_for_each_entry(link, &bus->hlink_list, list) {
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if (link->index == params->link_index)
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snd_hdac_ext_link_set_stream_id(link,
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stream_tag);
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}
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}
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stream->link_prepared = 1;
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return 0;
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}
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2019-06-12 17:23:36 +00:00
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/* Send DAI_CONFIG IPC to the DAI that matches the dai_name and direction */
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static int hda_link_config_ipc(struct sof_intel_hda_stream *hda_stream,
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const char *dai_name, int channel, int dir)
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{
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struct sof_ipc_dai_config *config;
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struct snd_sof_dai *sof_dai;
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struct sof_ipc_reply reply;
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int ret = 0;
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list_for_each_entry(sof_dai, &hda_stream->sdev->dai_list, list) {
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if (!sof_dai->cpu_dai_name)
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continue;
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if (!strcmp(dai_name, sof_dai->cpu_dai_name) &&
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dir == sof_dai->comp_dai.direction) {
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config = sof_dai->dai_config;
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if (!config) {
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dev_err(hda_stream->sdev->dev,
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"error: no config for DAI %s\n",
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sof_dai->name);
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return -EINVAL;
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}
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/* update config with stream tag */
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config->hda.link_dma_ch = channel;
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/* send IPC */
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ret = sof_ipc_tx_message(hda_stream->sdev->ipc,
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config->hdr.cmd,
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config,
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config->hdr.size,
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&reply, sizeof(reply));
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if (ret < 0)
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dev_err(hda_stream->sdev->dev,
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"error: failed to set dai config for %s\n",
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sof_dai->name);
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return ret;
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}
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}
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return -EINVAL;
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}
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2019-04-12 16:08:57 +00:00
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static int hda_link_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct hdac_stream *hstream = substream->runtime->private_data;
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struct hdac_bus *bus = hstream->bus;
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struct hdac_ext_stream *link_dev;
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struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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2019-04-30 23:09:31 +00:00
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struct sof_intel_hda_stream *hda_stream;
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2019-04-12 16:08:57 +00:00
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struct hda_pipe_params p_params = {0};
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struct hdac_ext_link *link;
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int stream_tag;
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2019-06-12 17:23:36 +00:00
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int ret;
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2019-04-12 16:08:57 +00:00
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2019-07-22 14:13:59 +00:00
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/* get stored dma data if resuming from system suspend */
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link_dev = snd_soc_dai_get_dma_data(dai, substream);
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if (!link_dev) {
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link_dev = hda_link_stream_assign(bus, substream);
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if (!link_dev)
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return -EBUSY;
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2019-12-18 00:05:17 +00:00
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snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev);
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2019-07-22 14:13:59 +00:00
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}
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2019-06-12 17:23:36 +00:00
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stream_tag = hdac_stream(link_dev)->stream_tag;
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hda_stream = hstream_to_sof_hda_stream(link_dev);
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/* update the DSP with the new tag */
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ret = hda_link_config_ipc(hda_stream, dai->name, stream_tag - 1,
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substream->stream);
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if (ret < 0)
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return ret;
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2019-04-12 16:08:57 +00:00
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link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
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if (!link)
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return -EINVAL;
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2019-06-12 17:23:36 +00:00
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/* set the stream tag in the codec dai dma params */
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2019-04-12 16:08:57 +00:00
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0);
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else
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snd_soc_dai_set_tdm_slot(codec_dai, 0, stream_tag, 0, 0);
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p_params.s_fmt = snd_pcm_format_width(params_format(params));
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p_params.ch = params_channels(params);
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p_params.s_freq = params_rate(params);
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p_params.stream = substream->stream;
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p_params.link_dma_id = stream_tag - 1;
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p_params.link_index = link->index;
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p_params.format = params_format(params);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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p_params.link_bps = codec_dai->driver->playback.sig_bits;
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else
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p_params.link_bps = codec_dai->driver->capture.sig_bits;
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return hda_link_dma_params(link_dev, &p_params);
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}
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static int hda_link_pcm_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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2019-04-30 23:09:31 +00:00
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struct hdac_ext_stream *link_dev =
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snd_soc_dai_get_dma_data(dai, substream);
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struct sof_intel_hda_stream *hda_stream;
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2019-04-12 16:08:57 +00:00
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struct snd_sof_dev *sdev =
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2019-04-30 23:09:31 +00:00
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snd_soc_component_get_drvdata(dai->component);
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struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
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2019-04-12 16:08:57 +00:00
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int stream = substream->stream;
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2019-06-12 17:23:36 +00:00
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hda_stream = hstream_to_sof_hda_stream(link_dev);
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2019-04-12 16:08:57 +00:00
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2019-07-22 14:13:58 +00:00
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if (link_dev->link_prepared)
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2019-04-12 16:08:57 +00:00
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return 0;
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2019-04-30 23:09:31 +00:00
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dev_dbg(sdev->dev, "hda: prepare stream dir %d\n", substream->stream);
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2019-04-12 16:08:57 +00:00
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return hda_link_hw_params(substream, &rtd->dpcm[stream].hw_params,
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dai);
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}
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static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
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int cmd, struct snd_soc_dai *dai)
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{
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struct hdac_ext_stream *link_dev =
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snd_soc_dai_get_dma_data(dai, substream);
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2019-06-12 17:23:36 +00:00
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struct sof_intel_hda_stream *hda_stream;
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struct snd_soc_pcm_runtime *rtd;
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struct hdac_ext_link *link;
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struct hdac_stream *hstream;
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struct hdac_bus *bus;
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int stream_tag;
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2019-04-12 16:08:57 +00:00
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int ret;
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2019-06-12 17:23:36 +00:00
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hstream = substream->runtime->private_data;
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bus = hstream->bus;
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rtd = snd_pcm_substream_chip(substream);
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link = snd_hdac_ext_bus_get_link(bus, rtd->codec_dai->component->name);
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if (!link)
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return -EINVAL;
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hda_stream = hstream_to_sof_hda_stream(link_dev);
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2019-04-12 16:08:57 +00:00
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dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_RESUME:
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/* set up hw_params */
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ret = hda_link_pcm_prepare(substream, dai);
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if (ret < 0) {
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dev_err(dai->dev,
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"error: setting up hw_params during resume\n");
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return ret;
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}
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/* fallthrough */
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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snd_hdac_ext_link_stream_start(link_dev);
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break;
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case SNDRV_PCM_TRIGGER_SUSPEND:
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2019-07-22 14:13:58 +00:00
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case SNDRV_PCM_TRIGGER_STOP:
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2019-06-12 17:23:36 +00:00
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/*
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2019-07-22 14:13:59 +00:00
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* clear link DMA channel. It will be assigned when
|
2019-06-12 17:23:36 +00:00
|
|
|
* hw_params is set up again after resume.
|
|
|
|
*/
|
|
|
|
ret = hda_link_config_ipc(hda_stream, dai->name,
|
|
|
|
DMA_CHAN_INVALID, substream->stream);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2019-07-22 14:14:00 +00:00
|
|
|
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
|
|
|
stream_tag = hdac_stream(link_dev)->stream_tag;
|
|
|
|
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
|
|
|
|
}
|
|
|
|
|
2019-07-22 14:13:58 +00:00
|
|
|
link_dev->link_prepared = 0;
|
2019-06-12 17:23:36 +00:00
|
|
|
|
|
|
|
/* fallthrough */
|
|
|
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
2019-04-12 16:08:57 +00:00
|
|
|
snd_hdac_ext_link_stream_clear(link_dev);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int hda_link_hw_free(struct snd_pcm_substream *substream,
|
|
|
|
struct snd_soc_dai *dai)
|
|
|
|
{
|
|
|
|
unsigned int stream_tag;
|
2019-06-12 17:23:36 +00:00
|
|
|
struct sof_intel_hda_stream *hda_stream;
|
2019-04-12 16:08:57 +00:00
|
|
|
struct hdac_bus *bus;
|
|
|
|
struct hdac_ext_link *link;
|
|
|
|
struct hdac_stream *hstream;
|
|
|
|
struct snd_soc_pcm_runtime *rtd;
|
|
|
|
struct hdac_ext_stream *link_dev;
|
2019-06-12 17:23:36 +00:00
|
|
|
int ret;
|
2019-04-12 16:08:57 +00:00
|
|
|
|
2019-06-12 17:23:36 +00:00
|
|
|
hstream = substream->runtime->private_data;
|
|
|
|
bus = hstream->bus;
|
|
|
|
rtd = snd_pcm_substream_chip(substream);
|
|
|
|
link_dev = snd_soc_dai_get_dma_data(dai, substream);
|
2019-12-18 00:05:17 +00:00
|
|
|
|
|
|
|
if (!link_dev) {
|
|
|
|
dev_dbg(dai->dev,
|
|
|
|
"%s: link_dev is not assigned\n", __func__);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2019-06-12 17:23:36 +00:00
|
|
|
hda_stream = hstream_to_sof_hda_stream(link_dev);
|
2019-04-12 16:08:57 +00:00
|
|
|
|
2019-06-12 17:23:36 +00:00
|
|
|
/* free the link DMA channel in the FW */
|
|
|
|
ret = hda_link_config_ipc(hda_stream, dai->name, DMA_CHAN_INVALID,
|
|
|
|
substream->stream);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
link = snd_hdac_ext_bus_get_link(bus, rtd->codec_dai->component->name);
|
|
|
|
if (!link)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2019-07-22 14:14:00 +00:00
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
|
|
|
stream_tag = hdac_stream(link_dev)->stream_tag;
|
|
|
|
snd_hdac_ext_link_clear_stream_id(link, stream_tag);
|
|
|
|
}
|
|
|
|
|
2019-07-22 14:13:59 +00:00
|
|
|
snd_soc_dai_set_dma_data(dai, substream, NULL);
|
2019-06-12 17:23:36 +00:00
|
|
|
snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK);
|
|
|
|
link_dev->link_prepared = 0;
|
2019-04-12 16:08:57 +00:00
|
|
|
|
2019-06-12 17:23:37 +00:00
|
|
|
/* free the host DMA channel reserved by hostless streams */
|
|
|
|
hda_stream->host_reserved = 0;
|
|
|
|
|
2019-04-12 16:08:57 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct snd_soc_dai_ops hda_link_dai_ops = {
|
|
|
|
.hw_params = hda_link_hw_params,
|
|
|
|
.hw_free = hda_link_hw_free,
|
|
|
|
.trigger = hda_link_pcm_trigger,
|
|
|
|
.prepare = hda_link_pcm_prepare,
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* common dai driver for skl+ platforms.
|
|
|
|
* some products who use this DAI array only physically have a subset of
|
|
|
|
* the DAIs, but no harm is done here by adding the whole set.
|
|
|
|
*/
|
|
|
|
struct snd_soc_dai_driver skl_dai[] = {
|
|
|
|
{
|
|
|
|
.name = "SSP0 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "SSP1 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "SSP2 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "SSP3 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "SSP4 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "SSP5 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "DMIC01 Pin",
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "DMIC16k Pin",
|
|
|
|
},
|
|
|
|
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
|
|
|
|
{
|
|
|
|
.name = "iDisp1 Pin",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "iDisp2 Pin",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "iDisp3 Pin",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
2019-12-20 17:10:36 +00:00
|
|
|
{
|
|
|
|
.name = "iDisp4 Pin",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
2019-04-12 16:08:57 +00:00
|
|
|
{
|
|
|
|
.name = "Analog CPU DAI",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "Digital CPU DAI",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "Alt Analog CPU DAI",
|
|
|
|
.ops = &hda_link_dai_ops,
|
|
|
|
},
|
|
|
|
#endif
|
|
|
|
};
|