2018-08-22 14:25:03 -06:00
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// SPDX-License-Identifier: GPL-2.0
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// Copyright(c) 2015-18 Intel Corporation.
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/*
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* hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers
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* with ASoC platform drivers. These APIs are called by the legacy HDA
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* codec drivers using hdac_ext_bus_ops ops.
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*/
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/hdaudio_ext.h>
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#include <sound/hda_codec.h>
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#include <sound/hda_register.h>
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#include "hdac_hda.h"
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#define HDAC_ANALOG_DAI_ID 0
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#define HDAC_DIGITAL_DAI_ID 1
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#define HDAC_ALT_ANALOG_DAI_ID 2
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#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_U8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_U16_LE | \
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SNDRV_PCM_FMTBIT_S24_LE | \
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SNDRV_PCM_FMTBIT_U24_LE | \
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SNDRV_PCM_FMTBIT_S32_LE | \
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SNDRV_PCM_FMTBIT_U32_LE | \
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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
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static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai);
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static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai);
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static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai);
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2019-03-08 01:38:58 -07:00
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static int hdac_hda_dai_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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2018-08-22 14:25:03 -06:00
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static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai);
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static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
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unsigned int tx_mask, unsigned int rx_mask,
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int slots, int slot_width);
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static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
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struct snd_soc_dai *dai);
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2018-10-27 07:34:44 -06:00
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static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
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2018-08-22 14:25:03 -06:00
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.startup = hdac_hda_dai_open,
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.shutdown = hdac_hda_dai_close,
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.prepare = hdac_hda_dai_prepare,
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2019-03-08 01:38:58 -07:00
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.hw_params = hdac_hda_dai_hw_params,
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2018-08-22 14:25:03 -06:00
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.hw_free = hdac_hda_dai_hw_free,
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.set_tdm_slot = hdac_hda_dai_set_tdm_slot,
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};
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static struct snd_soc_dai_driver hdac_hda_dais[] = {
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{
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.id = HDAC_ANALOG_DAI_ID,
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.name = "Analog Codec DAI",
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.ops = &hdac_hda_dai_ops,
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.playback = {
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.stream_name = "Analog Codec Playback",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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.capture = {
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.stream_name = "Analog Codec Capture",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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},
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{
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.id = HDAC_DIGITAL_DAI_ID,
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.name = "Digital Codec DAI",
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.ops = &hdac_hda_dai_ops,
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.playback = {
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.stream_name = "Digital Codec Playback",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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.capture = {
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.stream_name = "Digital Codec Capture",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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},
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{
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.id = HDAC_ALT_ANALOG_DAI_ID,
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.name = "Alt Analog Codec DAI",
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.ops = &hdac_hda_dai_ops,
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.playback = {
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.stream_name = "Alt Analog Codec Playback",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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.capture = {
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.stream_name = "Alt Analog Codec Capture",
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.channels_min = 1,
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.channels_max = 16,
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = STUB_FORMATS,
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.sig_bits = 24,
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},
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}
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};
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static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
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unsigned int tx_mask, unsigned int rx_mask,
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int slots, int slot_width)
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{
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struct snd_soc_component *component = dai->component;
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struct hdac_hda_priv *hda_pvt;
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struct hdac_hda_pcm *pcm;
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hda_pvt = snd_soc_component_get_drvdata(component);
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pcm = &hda_pvt->pcm[dai->id];
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if (tx_mask)
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pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
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else
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pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
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return 0;
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}
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2019-03-08 01:38:58 -07:00
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static int hdac_hda_dai_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 snd_soc_component *component = dai->component;
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struct hdac_hda_priv *hda_pvt;
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unsigned int format_val;
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unsigned int maxbps;
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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maxbps = dai->driver->playback.sig_bits;
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else
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maxbps = dai->driver->capture.sig_bits;
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hda_pvt = snd_soc_component_get_drvdata(component);
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format_val = snd_hdac_calc_stream_format(params_rate(params),
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params_channels(params),
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params_format(params),
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maxbps,
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0);
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if (!format_val) {
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dev_err(dai->dev,
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"invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n",
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params_rate(params), params_channels(params),
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params_format(params), maxbps);
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return -EINVAL;
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}
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hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val;
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return 0;
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}
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2018-08-22 14:25:03 -06:00
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static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct hdac_hda_priv *hda_pvt;
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struct hda_pcm_stream *hda_stream;
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struct hda_pcm *pcm;
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hda_pvt = snd_soc_component_get_drvdata(component);
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pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
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if (!pcm)
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return -EINVAL;
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hda_stream = &pcm->stream[substream->stream];
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snd_hda_codec_cleanup(&hda_pvt->codec, hda_stream, substream);
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return 0;
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}
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static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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2019-03-08 01:38:58 -07:00
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struct hda_pcm_stream *hda_stream;
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2018-08-22 14:25:03 -06:00
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struct hdac_hda_priv *hda_pvt;
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struct hdac_device *hdev;
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unsigned int format_val;
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struct hda_pcm *pcm;
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unsigned int stream;
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int ret = 0;
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hda_pvt = snd_soc_component_get_drvdata(component);
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hdev = &hda_pvt->codec.core;
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pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
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if (!pcm)
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return -EINVAL;
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hda_stream = &pcm->stream[substream->stream];
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stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream];
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2019-03-08 01:38:58 -07:00
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format_val = hda_pvt->pcm[dai->id].format_val[substream->stream];
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2018-08-22 14:25:03 -06:00
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ret = snd_hda_codec_prepare(&hda_pvt->codec, hda_stream,
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stream, format_val, substream);
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if (ret < 0)
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dev_err(&hdev->dev, "codec prepare failed %d\n", ret);
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return ret;
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}
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static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct hdac_hda_priv *hda_pvt;
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struct hda_pcm_stream *hda_stream;
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struct hda_pcm *pcm;
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int ret;
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hda_pvt = snd_soc_component_get_drvdata(component);
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pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
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if (!pcm)
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return -EINVAL;
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snd_hda_codec_pcm_get(pcm);
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hda_stream = &pcm->stream[substream->stream];
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ret = hda_stream->ops.open(hda_stream, &hda_pvt->codec, substream);
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if (ret < 0)
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snd_hda_codec_pcm_put(pcm);
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return ret;
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}
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static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct hdac_hda_priv *hda_pvt;
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struct hda_pcm_stream *hda_stream;
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struct hda_pcm *pcm;
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hda_pvt = snd_soc_component_get_drvdata(component);
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pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
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if (!pcm)
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return;
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hda_stream = &pcm->stream[substream->stream];
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hda_stream->ops.close(hda_stream, &hda_pvt->codec, substream);
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snd_hda_codec_pcm_put(pcm);
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}
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static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
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struct snd_soc_dai *dai)
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{
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struct hda_codec *hcodec = &hda_pvt->codec;
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struct hda_pcm *cpcm;
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const char *pcm_name;
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switch (dai->id) {
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case HDAC_ANALOG_DAI_ID:
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pcm_name = "Analog";
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break;
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case HDAC_DIGITAL_DAI_ID:
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pcm_name = "Digital";
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break;
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case HDAC_ALT_ANALOG_DAI_ID:
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pcm_name = "Alt Analog";
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break;
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default:
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dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id);
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return NULL;
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}
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list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
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if (strpbrk(cpcm->name, pcm_name))
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return cpcm;
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}
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dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name);
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return NULL;
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}
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static int hdac_hda_codec_probe(struct snd_soc_component *component)
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{
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struct hdac_hda_priv *hda_pvt =
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snd_soc_component_get_drvdata(component);
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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struct hdac_device *hdev = &hda_pvt->codec.core;
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struct hda_codec *hcodec = &hda_pvt->codec;
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struct hdac_ext_link *hlink;
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hda_codec_patch_t patch;
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int ret;
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hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
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if (!hlink) {
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dev_err(&hdev->dev, "hdac link not found\n");
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return -EIO;
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}
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snd_hdac_ext_bus_link_get(hdev->bus, hlink);
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ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
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hdev->addr, hcodec);
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if (ret < 0) {
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dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
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goto error_no_pm;
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}
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2019-04-27 14:53:40 -06:00
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/*
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* Overwrite type to HDA_DEV_ASOC since it is a ASoC driver
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* hda_codec.c will check this flag to determine if unregister
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* device is needed.
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*/
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hdev->type = HDA_DEV_ASOC;
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2018-08-22 14:25:03 -06:00
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/*
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* snd_hda_codec_device_new decrements the usage count so call get pm
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* else the device will be powered off
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*/
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pm_runtime_get_noresume(&hdev->dev);
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hcodec->bus->card = dapm->card->snd_card;
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ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
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if (ret < 0) {
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dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name);
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goto error;
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}
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ret = snd_hdac_regmap_init(&hcodec->core);
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if (ret < 0) {
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dev_err(&hdev->dev, "regmap init failed\n");
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goto error;
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}
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patch = (hda_codec_patch_t)hcodec->preset->driver_data;
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if (patch) {
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ret = patch(hcodec);
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if (ret < 0) {
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dev_err(&hdev->dev, "patch failed %d\n", ret);
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goto error;
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}
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} else {
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dev_dbg(&hdev->dev, "no patch file found\n");
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}
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ret = snd_hda_codec_parse_pcms(hcodec);
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if (ret < 0) {
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dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret);
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goto error;
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}
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ret = snd_hda_codec_build_controls(hcodec);
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if (ret < 0) {
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dev_err(&hdev->dev, "unable to create controls %d\n", ret);
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goto error;
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}
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hcodec->core.lazy_cache = true;
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/*
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* hdac_device core already sets the state to active and calls
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* get_noresume. So enable runtime and set the device to suspend.
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* pm_runtime_enable is also called during codec registeration
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*/
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pm_runtime_put(&hdev->dev);
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pm_runtime_suspend(&hdev->dev);
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return 0;
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error:
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pm_runtime_put(&hdev->dev);
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error_no_pm:
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snd_hdac_ext_bus_link_put(hdev->bus, hlink);
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return ret;
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}
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static void hdac_hda_codec_remove(struct snd_soc_component *component)
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{
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struct hdac_hda_priv *hda_pvt =
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snd_soc_component_get_drvdata(component);
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struct hdac_device *hdev = &hda_pvt->codec.core;
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struct hdac_ext_link *hlink = NULL;
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hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
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if (!hlink) {
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dev_err(&hdev->dev, "hdac link not found\n");
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return;
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}
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snd_hdac_ext_bus_link_put(hdev->bus, hlink);
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pm_runtime_disable(&hdev->dev);
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}
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static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
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{"AIF1TX", NULL, "Codec Input Pin1"},
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{"AIF2TX", NULL, "Codec Input Pin2"},
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{"AIF3TX", NULL, "Codec Input Pin3"},
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{"Codec Output Pin1", NULL, "AIF1RX"},
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{"Codec Output Pin2", NULL, "AIF2RX"},
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{"Codec Output Pin3", NULL, "AIF3RX"},
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};
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static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = {
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/* Audio Interface */
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SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0,
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SND_SOC_NOPM, 0, 0),
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/* Input Pins */
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SND_SOC_DAPM_INPUT("Codec Input Pin1"),
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SND_SOC_DAPM_INPUT("Codec Input Pin2"),
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SND_SOC_DAPM_INPUT("Codec Input Pin3"),
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/* Output Pins */
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SND_SOC_DAPM_OUTPUT("Codec Output Pin1"),
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SND_SOC_DAPM_OUTPUT("Codec Output Pin2"),
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SND_SOC_DAPM_OUTPUT("Codec Output Pin3"),
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};
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static const struct snd_soc_component_driver hdac_hda_codec = {
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.probe = hdac_hda_codec_probe,
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.remove = hdac_hda_codec_remove,
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.idle_bias_on = false,
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.dapm_widgets = hdac_hda_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets),
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.dapm_routes = hdac_hda_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes),
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};
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static int hdac_hda_dev_probe(struct hdac_device *hdev)
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{
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struct hdac_ext_link *hlink;
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struct hdac_hda_priv *hda_pvt;
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int ret;
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/* hold the ref while we probe */
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hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
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if (!hlink) {
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dev_err(&hdev->dev, "hdac link not found\n");
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return -EIO;
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}
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snd_hdac_ext_bus_link_get(hdev->bus, hlink);
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hda_pvt = hdac_to_hda_priv(hdev);
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if (!hda_pvt)
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return -ENOMEM;
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/* ASoC specific initialization */
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2018-09-06 19:01:19 -06:00
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ret = devm_snd_soc_register_component(&hdev->dev,
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2018-08-22 14:25:03 -06:00
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&hdac_hda_codec, hdac_hda_dais,
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ARRAY_SIZE(hdac_hda_dais));
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if (ret < 0) {
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dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret);
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return ret;
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}
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dev_set_drvdata(&hdev->dev, hda_pvt);
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snd_hdac_ext_bus_link_put(hdev->bus, hlink);
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return ret;
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}
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static int hdac_hda_dev_remove(struct hdac_device *hdev)
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{
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2019-08-07 08:50:30 -06:00
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struct hdac_hda_priv *hda_pvt;
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hda_pvt = dev_get_drvdata(&hdev->dev);
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cancel_delayed_work_sync(&hda_pvt->codec.jackpoll_work);
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2018-08-22 14:25:03 -06:00
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return 0;
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}
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static struct hdac_ext_bus_ops hdac_ops = {
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.hdev_attach = hdac_hda_dev_probe,
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.hdev_detach = hdac_hda_dev_remove,
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};
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struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void)
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{
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return &hdac_ops;
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}
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EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops);
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers");
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MODULE_AUTHOR("Rakesh Ughreja<rakesh.a.ughreja@intel.com>");
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