// SPDX-License-Identifier: GPL-2.0
// Copyright(c) 2015-18 Intel Corporation.
/*
* hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers
* with ASoC platform drivers. These APIs are called by the legacy HDA
* codec drivers using hdac_ext_bus_ops ops.
*/
#include <linux/firmware.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/hdaudio_ext.h>
#include <sound/hda_i915.h>
#include <sound/hda_codec.h>
#include <sound/hda_register.h>
#include "hdac_hda.h"
#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_U8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_U16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_U24_LE | \
SNDRV_PCM_FMTBIT_S32_LE | \
SNDRV_PCM_FMTBIT_U32_LE | \
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
#define STUB_HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
SNDRV_PCM_RATE_192000)
#ifdef CONFIG_SND_HDA_PATCH_LOADER
static char *loadable_patch[HDA_MAX_CODECS];
module_param_array_named(patch, loadable_patch, charp, NULL, 0444);
MODULE_PARM_DESC(patch, "Patch file array for Intel HD audio interface. The array index is the codec address.");
#endif
static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai);
static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai, void *stream,
int direction);
static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
struct snd_soc_dai *dai);
static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
.startup = hdac_hda_dai_open,
.shutdown = hdac_hda_dai_close,
.prepare = hdac_hda_dai_prepare,
.hw_params = hdac_hda_dai_hw_params,
.hw_free = hdac_hda_dai_hw_free,
.set_stream = hdac_hda_dai_set_stream,
};
static struct snd_soc_dai_driver hdac_hda_dais[] = {
{
.id = HDAC_ANALOG_DAI_ID,
.name = "Analog Codec DAI",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "Analog Codec Playback",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Analog Codec Capture",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
{
.id = HDAC_DIGITAL_DAI_ID,
.name = "Digital Codec DAI",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "Digital Codec Playback",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Digital Codec Capture",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
{
.id = HDAC_ALT_ANALOG_DAI_ID,
.name = "Alt Analog Codec DAI",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "Alt Analog Codec Playback",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Alt Analog Codec Capture",
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
};
static struct snd_soc_dai_driver hdac_hda_hdmi_dais[] = {
{
.id = HDAC_HDMI_0_DAI_ID,
.name = "intel-hdmi-hifi1",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "hifi1",
.channels_min = 1,
.channels_max = 32,
.rates = STUB_HDMI_RATES,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
{
.id = HDAC_HDMI_1_DAI_ID,
.name = "intel-hdmi-hifi2",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "hifi2",
.channels_min = 1,
.channels_max = 32,
.rates = STUB_HDMI_RATES,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
{
.id = HDAC_HDMI_2_DAI_ID,
.name = "intel-hdmi-hifi3",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "hifi3",
.channels_min = 1,
.channels_max = 32,
.rates = STUB_HDMI_RATES,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
{
.id = HDAC_HDMI_3_DAI_ID,
.name = "intel-hdmi-hifi4",
.ops = &hdac_hda_dai_ops,
.playback = {
.stream_name = "hifi4",
.channels_min = 1,
.channels_max = 32,
.rates = STUB_HDMI_RATES,
.formats = STUB_FORMATS,
.sig_bits = 24,
},
},
};
static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai,
void *stream, int direction)
{
struct snd_soc_component *component = dai->component;
struct hdac_hda_priv *hda_pvt;
struct hdac_hda_pcm *pcm;
struct hdac_stream *hstream;
if (!stream)
return -EINVAL;
hda_pvt = snd_soc_component_get_drvdata(component);
pcm = &hda_pvt->pcm[dai->id];
hstream = (struct hdac_stream *)stream;
pcm->stream_tag[direction] = hstream->stream_tag;
return 0;
}
static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct hdac_hda_priv *hda_pvt;
unsigned int format_val;
unsigned int maxbps;
unsigned int bits;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
maxbps = dai->driver->playback.sig_bits;
else
maxbps = dai->driver->capture.sig_bits;
bits = snd_hdac_stream_format_bits(params_format(params), SNDRV_PCM_SUBFORMAT_STD, maxbps);
hda_pvt = snd_soc_component_get_drvdata(component);
format_val = snd_hdac_stream_format(params_channels(params), bits, params_rate(params));
if (!format_val) {
dev_err(dai->dev,
"%s: invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n",
__func__,
params_rate(params), params_channels(params),
params_format(params), maxbps);
return -EINVAL;
}
hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val;
return 0;
}
static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct hdac_hda_priv *hda_pvt;
struct hda_pcm_stream *hda_stream;
struct hda_pcm *pcm;
hda_pvt = snd_soc_component_get_drvdata(component);
pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
if (!pcm)
return -EINVAL;
hda_stream = &pcm->stream[substream->stream];
snd_hda_codec_cleanup(hda_pvt->codec, hda_stream, substream);
return 0;
}
static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct hda_pcm_stream *hda_stream;
struct hdac_hda_priv *hda_pvt;
unsigned int format_val;
struct hda_pcm *pcm;
unsigned int stream;
int ret = 0;
hda_pvt = snd_soc_component_get_drvdata(component);
pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
if (!pcm)
return -EINVAL;
hda_stream = &pcm->stream[substream->stream];
stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream];
format_val = hda_pvt->pcm[dai->id].format_val[substream->stream];
ret = snd_hda_codec_prepare(hda_pvt->codec, hda_stream,
stream, format_val, substream);
if (ret < 0)
dev_err(dai->dev, "%s: failed %d\n", __func__, ret);
return ret;
}
static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct hdac_hda_priv *hda_pvt;
struct hda_pcm_stream *hda_stream;
struct hda_pcm *pcm;
int ret;
hda_pvt = snd_soc_component_get_drvdata(component);
pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
if (!pcm)
return -EINVAL;
snd_hda_codec_pcm_get(pcm);
hda_stream = &pcm->stream[substream->stream];
ret = hda_stream->ops.open(hda_stream, hda_pvt->codec, substream);
if (ret < 0)
dev_err(dai->dev, "%s: failed %d\n", __func__, ret);
return ret;
}
static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct hdac_hda_priv *hda_pvt;
struct hda_pcm_stream *hda_stream;
struct hda_pcm *pcm;
hda_pvt = snd_soc_component_get_drvdata(component);
pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
if (!pcm)
return;
hda_stream = &pcm->stream[substream->stream];
hda_stream->ops.close(hda_stream, hda_pvt->codec, substream);
snd_hda_codec_pcm_put(pcm);
}
static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
struct snd_soc_dai *dai)
{
struct hda_codec *hcodec = hda_pvt->codec;
struct hda_pcm *cpcm;
const char *pcm_name;
/*
* map DAI ID to the closest matching PCM name, using the naming
* scheme used by hda-codec snd_hda_gen_build_pcms() and for
* HDMI in hda_codec patch_hdmi.c)
*/
switch (dai->id) {
case HDAC_ANALOG_DAI_ID:
pcm_name = "Analog";
break;
case HDAC_DIGITAL_DAI_ID:
pcm_name = "Digital";
break;
case HDAC_ALT_ANALOG_DAI_ID:
pcm_name = "Alt Analog";
break;
case HDAC_HDMI_0_DAI_ID:
pcm_name = "HDMI 0";
break;
case HDAC_HDMI_1_DAI_ID:
pcm_name = "HDMI 1";
break;
case HDAC_HDMI_2_DAI_ID:
pcm_name = "HDMI 2";
break;
case HDAC_HDMI_3_DAI_ID:
pcm_name = "HDMI 3";
break;
default:
dev_err(dai->dev, "%s: invalid dai id %d\n", __func__, dai->id);
return NULL;
}
list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
if (strstr(cpcm->name, pcm_name)) {
if (strcmp(pcm_name, "Analog") == 0) {
if (strstr(cpcm->name, "Alt Analog"))
continue;
}
return cpcm;
}
}
dev_err(dai->dev, "%s: didn't find PCM for DAI %s\n", __func__, dai->name);
return NULL;
}
static bool is_hdmi_codec(struct hda_codec *hcodec)
{
struct hda_pcm *cpcm;
list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
if (cpcm->pcm_type == HDA_PCM_TYPE_HDMI)
return true;
}
return false;
}
static int hdac_hda_codec_probe(struct snd_soc_component *component)
{
struct hdac_hda_priv *hda_pvt =
snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
struct hdac_device *hdev = &hda_pvt->codec->core;
struct hda_codec *hcodec = hda_pvt->codec;
struct hdac_ext_link *hlink;
hda_codec_patch_t patch;
int ret;
hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
if (!hlink) {
dev_err(&hdev->dev, "%s: hdac link not found\n", __func__);
return -EIO;
}
snd_hdac_ext_bus_link_get(hdev->bus, hlink);
/*
* Ensure any HDA display is powered at codec probe.
* After snd_hda_codec_device_new(), display power is
* managed by runtime PM.
*/
if (hda_pvt->need_display_power)
snd_hdac_display_power(hdev->bus,
HDA_CODEC_IDX_CONTROLLER, true);
ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
hdev->addr, hcodec, true);
if (ret < 0) {
dev_err(&hdev->dev, "%s: failed to create hda codec %d\n", __func__, ret);
goto error_no_pm;
}
#ifdef CONFIG_SND_HDA_PATCH_LOADER
if (loadable_patch[hda_pvt->dev_index] && *loadable_patch[hda_pvt->dev_index]) {
const struct firmware *fw;
dev_info(&hdev->dev, "Applying patch firmware '%s'\n",
loadable_patch[hda_pvt->dev_index]);
ret = request_firmware(&fw, loadable_patch[hda_pvt->dev_index],
&hdev->dev);
if (ret < 0)
goto error_no_pm;
if (fw) {
ret = snd_hda_load_patch(hcodec->bus, fw->size, fw->data);
if (ret < 0) {
dev_err(&hdev->dev, "%s: failed to load hda patch %d\n", __func__, ret);
goto error_no_pm;
}
release_firmware(fw);
}
}
#endif
/*
* Overwrite type to HDA_DEV_ASOC since it is a ASoC driver
* hda_codec.c will check this flag to determine if unregister
* device is needed.
*/
hdev->type = HDA_DEV_ASOC;
/*
* snd_hda_codec_device_new decrements the usage count so call get pm
* else the device will be powered off
*/
pm_runtime_get_noresume(&hdev->dev);
hcodec->bus->card = dapm->card->snd_card;
ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
if (ret < 0) {
dev_err(&hdev->dev, "%s: name failed %s\n", __func__, hcodec->preset->name);
goto error_pm;
}
ret = snd_hdac_regmap_init(&hcodec->core);
if (ret < 0) {
dev_err(&hdev->dev, "%s: regmap init failed\n", __func__);
goto error_pm;
}
patch = (hda_codec_patch_t)hcodec->preset->driver_data;
if (patch) {
ret = patch(hcodec);
if (ret < 0) {
dev_err(&hdev->dev, "%s: patch failed %d\n", __func__, ret);
goto error_regmap;
}
} else {
dev_dbg(&hdev->dev, "%s: no patch file found\n", __func__);
}
ret = snd_hda_codec_parse_pcms(hcodec);
if (ret < 0) {
dev_err(&hdev->dev, "%s: unable to map pcms to dai %d\n", __func__, ret);
goto error_patch;
}
/* HDMI controls need to be created in machine drivers */
if (!is_hdmi_codec(hcodec)) {
ret = snd_hda_codec_build_controls(hcodec);
if (ret < 0) {
dev_err(&hdev->dev, "%s: unable to create controls %d\n",
__func__, ret);
goto error_patch;
}
}
hcodec->core.lazy_cache = true;
if (hda_pvt->need_display_power)
snd_hdac_display_power(hdev->bus,
HDA_CODEC_IDX_CONTROLLER, false);
/* match for forbid call in snd_hda_codec_device_new() */
pm_runtime_allow(&hdev->dev);
/*
* hdac_device core already sets the state to active and calls
* get_noresume. So enable runtime and set the device to suspend.
* pm_runtime_enable is also called during codec registeration
*/
pm_runtime_put(&hdev->dev);
pm_runtime_suspend(&hdev->dev);
return 0;
error_patch:
if (hcodec->patch_ops.free)
hcodec->patch_ops.free(hcodec);
error_regmap:
snd_hdac_regmap_exit(hdev);
error_pm:
pm_runtime_put(&hdev->dev);
error_no_pm:
snd_hdac_ext_bus_link_put(hdev->bus, hlink);
return ret;
}
static void hdac_hda_codec_remove(struct snd_soc_component *component)
{
struct hdac_hda_priv *hda_pvt =
snd_soc_component_get_drvdata(component);
struct hdac_device *hdev = &hda_pvt->codec->core;
struct hda_codec *codec = hda_pvt->codec;
struct hdac_ext_link *hlink = NULL;
hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
if (!hlink) {
dev_err(&hdev->dev, "%s: hdac link not found\n", __func__);
return;
}
pm_runtime_disable(&hdev->dev);
snd_hdac_ext_bus_link_put(hdev->bus, hlink);
if (codec->patch_ops.free)
codec->patch_ops.free(codec);
snd_hda_codec_cleanup_for_unbind(codec);
}
static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
{"AIF1TX", NULL, "Codec Input Pin1"},
{"AIF2TX", NULL, "Codec Input Pin2"},
{"AIF3TX", NULL, "Codec Input Pin3"},
{"Codec Output Pin1", NULL, "AIF1RX"},
{"Codec Output Pin2", NULL, "AIF2RX"},
{"Codec Output Pin3", NULL, "AIF3RX"},
};
static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = {
/* Audio Interface */
SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0,
SND_SOC_NOPM, 0, 0),
/* Input Pins */
SND_SOC_DAPM_INPUT("Codec Input Pin1"),
SND_SOC_DAPM_INPUT("Codec Input Pin2"),
SND_SOC_DAPM_INPUT("Codec Input Pin3"),
/* Output Pins */
SND_SOC_DAPM_OUTPUT("Codec Output Pin1"),
SND_SOC_DAPM_OUTPUT("Codec Output Pin2"),
SND_SOC_DAPM_OUTPUT("Codec Output Pin3"),
};
static const struct snd_soc_component_driver hdac_hda_codec = {
.probe = hdac_hda_codec_probe,
.remove = hdac_hda_codec_remove,
.dapm_widgets = hdac_hda_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets),
.dapm_routes = hdac_hda_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes),
.idle_bias_on = false,
.endianness = 1,
};
static const struct snd_soc_component_driver hdac_hda_hdmi_codec = {
.probe = hdac_hda_codec_probe,
.remove = hdac_hda_codec_remove,
.idle_bias_on = false,
.endianness = 1,
};
static int hdac_hda_dev_probe(struct hdac_device *hdev)
{
struct hdac_hda_priv *hda_pvt = dev_get_drvdata(&hdev->dev);
struct hdac_ext_link *hlink;
int ret;
/* hold the ref while we probe */
hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
if (!hlink) {
dev_err(&hdev->dev, "%s: hdac link not found\n", __func__);
return -EIO;
}
snd_hdac_ext_bus_link_get(hdev->bus, hlink);
/* ASoC specific initialization */
if (hda_pvt->need_display_power)
ret = devm_snd_soc_register_component(&hdev->dev,
&hdac_hda_hdmi_codec, hdac_hda_hdmi_dais,
ARRAY_SIZE(hdac_hda_hdmi_dais));
else
ret = devm_snd_soc_register_component(&hdev->dev,
&hdac_hda_codec, hdac_hda_dais,
ARRAY_SIZE(hdac_hda_dais));
if (ret < 0) {
dev_err(&hdev->dev, "%s: failed to register HDA codec %d\n", __func__, ret);
return ret;
}
snd_hdac_ext_bus_link_put(hdev->bus, hlink);
return ret;
}
static int hdac_hda_dev_remove(struct hdac_device *hdev)
{
/*
* Resources are freed in hdac_hda_codec_remove(). This
* function is kept to keep hda_codec_driver_remove() happy.
*/
return 0;
}
static struct hdac_ext_bus_ops hdac_ops = {
.hdev_attach = hdac_hda_dev_probe,
.hdev_detach = hdac_hda_dev_remove,
};
struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void)
{
return &hdac_ops;
}
EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers");
MODULE_AUTHOR("Rakesh Ughreja<[email protected]>");
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