summaryrefslogtreecommitdiffstats
path: root/sound/soc/intel/avs/pcm.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/intel/avs/pcm.c')
-rw-r--r--sound/soc/intel/avs/pcm.c1193
1 files changed, 1193 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/pcm.c b/sound/soc/intel/avs/pcm.c
new file mode 100644
index 000000000..22f21f3f6
--- /dev/null
+++ b/sound/soc/intel/avs/pcm.c
@@ -0,0 +1,1193 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <sound/hda_register.h>
+#include <sound/hdaudio_ext.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-acpi-intel-match.h>
+#include <sound/soc-component.h>
+#include "avs.h"
+#include "path.h"
+#include "topology.h"
+
+struct avs_dma_data {
+ struct avs_tplg_path_template *template;
+ struct avs_path *path;
+ /*
+ * link stream is stored within substream's runtime
+ * private_data to fulfill the needs of codec BE path
+ *
+ * host stream assigned
+ */
+ struct hdac_ext_stream *host_stream;
+};
+
+static struct avs_tplg_path_template *
+avs_dai_find_path_template(struct snd_soc_dai *dai, bool is_fe, int direction)
+{
+ struct snd_soc_dapm_widget *dw;
+ struct snd_soc_dapm_path *dp;
+ enum snd_soc_dapm_direction dir;
+
+ if (direction == SNDRV_PCM_STREAM_CAPTURE) {
+ dw = dai->capture_widget;
+ dir = is_fe ? SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN;
+ } else {
+ dw = dai->playback_widget;
+ dir = is_fe ? SND_SOC_DAPM_DIR_IN : SND_SOC_DAPM_DIR_OUT;
+ }
+
+ dp = list_first_entry_or_null(&dw->edges[dir], typeof(*dp), list_node[dir]);
+ if (!dp)
+ return NULL;
+
+ /* Get the other widget, with actual path template data */
+ dw = (dp->source == dw) ? dp->sink : dp->source;
+
+ return dw->priv;
+}
+
+static int avs_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai, bool is_fe)
+{
+ struct avs_tplg_path_template *template;
+ struct avs_dma_data *data;
+
+ template = avs_dai_find_path_template(dai, is_fe, substream->stream);
+ if (!template) {
+ dev_err(dai->dev, "no %s path for dai %s, invalid tplg?\n",
+ snd_pcm_stream_str(substream), dai->name);
+ return -EINVAL;
+ }
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->template = template;
+ snd_soc_dai_set_dma_data(dai, substream, data);
+
+ return 0;
+}
+
+static int avs_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *fe_hw_params,
+ struct snd_pcm_hw_params *be_hw_params, struct snd_soc_dai *dai,
+ int dma_id)
+{
+ struct avs_dma_data *data;
+ struct avs_path *path;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+
+ dev_dbg(dai->dev, "%s FE hw_params str %p rtd %p",
+ __func__, substream, substream->runtime);
+ dev_dbg(dai->dev, "rate %d chn %d vbd %d bd %d\n",
+ params_rate(fe_hw_params), params_channels(fe_hw_params),
+ params_width(fe_hw_params), params_physical_width(fe_hw_params));
+
+ dev_dbg(dai->dev, "%s BE hw_params str %p rtd %p",
+ __func__, substream, substream->runtime);
+ dev_dbg(dai->dev, "rate %d chn %d vbd %d bd %d\n",
+ params_rate(be_hw_params), params_channels(be_hw_params),
+ params_width(be_hw_params), params_physical_width(be_hw_params));
+
+ path = avs_path_create(adev, dma_id, data->template, fe_hw_params, be_hw_params);
+ if (IS_ERR(path)) {
+ ret = PTR_ERR(path);
+ dev_err(dai->dev, "create path failed: %d\n", ret);
+ return ret;
+ }
+
+ data->path = path;
+ return 0;
+}
+
+static int avs_dai_be_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *be_hw_params, struct snd_soc_dai *dai,
+ int dma_id)
+{
+ struct snd_pcm_hw_params *fe_hw_params = NULL;
+ struct snd_soc_pcm_runtime *fe, *be;
+ struct snd_soc_dpcm *dpcm;
+
+ be = asoc_substream_to_rtd(substream);
+ for_each_dpcm_fe(be, substream->stream, dpcm) {
+ fe = dpcm->fe;
+ fe_hw_params = &fe->dpcm[substream->stream].hw_params;
+ }
+
+ return avs_dai_hw_params(substream, fe_hw_params, be_hw_params, dai, dma_id);
+}
+
+static int avs_dai_prepare(struct avs_dev *adev, struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (!data->path)
+ return 0;
+
+ ret = avs_path_reset(data->path);
+ if (ret < 0) {
+ dev_err(dai->dev, "reset path failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = avs_path_pause(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "pause path failed: %d\n", ret);
+ return ret;
+}
+
+static int avs_dai_nonhda_be_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ return avs_dai_startup(substream, dai, false);
+}
+
+static void avs_dai_nonhda_be_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+
+ snd_soc_dai_set_dma_data(dai, substream, NULL);
+ kfree(data);
+}
+
+static int avs_dai_nonhda_be_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (data->path)
+ return 0;
+
+ /* Actual port-id comes from topology. */
+ return avs_dai_be_hw_params(substream, hw_params, dai, 0);
+}
+
+static int avs_dai_nonhda_be_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+
+ dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (data->path) {
+ avs_path_free(data->path);
+ data->path = NULL;
+ }
+
+ return 0;
+}
+
+static int avs_dai_nonhda_be_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ return avs_dai_prepare(to_avs_dev(dai->dev), substream, dai);
+}
+
+static int avs_dai_nonhda_be_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ int ret = 0;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ret = avs_path_run(data->path, AVS_TPLG_TRIGGER_AUTO);
+ if (ret < 0)
+ dev_err(dai->dev, "run BE path failed: %d\n", ret);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = avs_path_pause(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "pause BE path failed: %d\n", ret);
+
+ if (cmd == SNDRV_PCM_TRIGGER_STOP) {
+ ret = avs_path_reset(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "reset BE path failed: %d\n", ret);
+ }
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_dai_ops avs_dai_nonhda_be_ops = {
+ .startup = avs_dai_nonhda_be_startup,
+ .shutdown = avs_dai_nonhda_be_shutdown,
+ .hw_params = avs_dai_nonhda_be_hw_params,
+ .hw_free = avs_dai_nonhda_be_hw_free,
+ .prepare = avs_dai_nonhda_be_prepare,
+ .trigger = avs_dai_nonhda_be_trigger,
+};
+
+static int avs_dai_hda_be_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ return avs_dai_startup(substream, dai, false);
+}
+
+static void avs_dai_hda_be_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ return avs_dai_nonhda_be_shutdown(substream, dai);
+}
+
+static int avs_dai_hda_be_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ struct hdac_ext_stream *link_stream;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (data->path)
+ return 0;
+
+ link_stream = substream->runtime->private_data;
+
+ return avs_dai_be_hw_params(substream, hw_params, dai,
+ hdac_stream(link_stream)->stream_tag - 1);
+}
+
+static int avs_dai_hda_be_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct hdac_ext_stream *link_stream;
+ struct hdac_ext_link *link;
+ struct hda_codec *codec;
+
+ dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (!data->path)
+ return 0;
+
+ link_stream = substream->runtime->private_data;
+ link_stream->link_prepared = false;
+ avs_path_free(data->path);
+ data->path = NULL;
+
+ /* clear link <-> stream mapping */
+ codec = dev_to_hda_codec(asoc_rtd_to_codec(rtd, 0)->dev);
+ link = snd_hdac_ext_bus_link_at(&codec->bus->core, codec->core.addr);
+ if (!link)
+ return -EINVAL;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_hdac_ext_link_clear_stream_id(link, hdac_stream(link_stream)->stream_tag);
+
+ return 0;
+}
+
+static int avs_dai_hda_be_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct hdac_ext_stream *link_stream = runtime->private_data;
+ struct hdac_ext_link *link;
+ struct hda_codec *codec;
+ struct hdac_bus *bus;
+ unsigned int format_val;
+ int ret;
+
+ if (link_stream->link_prepared)
+ return 0;
+
+ codec = dev_to_hda_codec(asoc_rtd_to_codec(rtd, 0)->dev);
+ bus = &codec->bus->core;
+ format_val = snd_hdac_calc_stream_format(runtime->rate, runtime->channels, runtime->format,
+ runtime->sample_bits, 0);
+
+ snd_hdac_ext_stream_decouple(bus, link_stream, true);
+ snd_hdac_ext_link_stream_reset(link_stream);
+ snd_hdac_ext_link_stream_setup(link_stream, format_val);
+
+ link = snd_hdac_ext_bus_link_at(bus, codec->core.addr);
+ if (!link)
+ return -EINVAL;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_stream)->stream_tag);
+
+ ret = avs_dai_prepare(to_avs_dev(dai->dev), substream, dai);
+ if (ret)
+ return ret;
+
+ link_stream->link_prepared = true;
+ return 0;
+}
+
+static int avs_dai_hda_be_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *link_stream;
+ struct avs_dma_data *data;
+ int ret = 0;
+
+ dev_dbg(dai->dev, "entry %s cmd=%d\n", __func__, cmd);
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ link_stream = substream->runtime->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ snd_hdac_ext_link_stream_start(link_stream);
+
+ ret = avs_path_run(data->path, AVS_TPLG_TRIGGER_AUTO);
+ if (ret < 0)
+ dev_err(dai->dev, "run BE path failed: %d\n", ret);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = avs_path_pause(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "pause BE path failed: %d\n", ret);
+
+ snd_hdac_ext_link_stream_clear(link_stream);
+
+ if (cmd == SNDRV_PCM_TRIGGER_STOP) {
+ ret = avs_path_reset(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "reset BE path failed: %d\n", ret);
+ }
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_dai_ops avs_dai_hda_be_ops = {
+ .startup = avs_dai_hda_be_startup,
+ .shutdown = avs_dai_hda_be_shutdown,
+ .hw_params = avs_dai_hda_be_hw_params,
+ .hw_free = avs_dai_hda_be_hw_free,
+ .prepare = avs_dai_hda_be_prepare,
+ .trigger = avs_dai_hda_be_trigger,
+};
+
+static const unsigned int rates[] = {
+ 8000, 11025, 12000, 16000,
+ 22050, 24000, 32000, 44100,
+ 48000, 64000, 88200, 96000,
+ 128000, 176400, 192000,
+};
+
+static const struct snd_pcm_hw_constraint_list hw_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0,
+};
+
+static int avs_dai_fe_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct avs_dma_data *data;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_bus *bus = &adev->base.core;
+ struct hdac_ext_stream *host_stream;
+ int ret;
+
+ ret = avs_dai_startup(substream, dai, true);
+ if (ret)
+ return ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+
+ host_stream = snd_hdac_ext_stream_assign(bus, substream, HDAC_EXT_STREAM_TYPE_HOST);
+ if (!host_stream) {
+ ret = -EBUSY;
+ goto err;
+ }
+
+ data->host_stream = host_stream;
+ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ goto err;
+
+ /* avoid wrap-around with wall-clock */
+ ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME, 20, 178000000);
+ if (ret < 0)
+ goto err;
+
+ ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_rates);
+ if (ret < 0)
+ goto err;
+
+ snd_pcm_set_sync(substream);
+
+ dev_dbg(dai->dev, "%s fe STARTUP tag %d str %p",
+ __func__, hdac_stream(host_stream)->stream_tag, substream);
+
+ return 0;
+
+err:
+ kfree(data);
+ return ret;
+}
+
+static void avs_dai_fe_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+
+ snd_soc_dai_set_dma_data(dai, substream, NULL);
+ snd_hdac_ext_stream_release(data->host_stream, HDAC_EXT_STREAM_TYPE_HOST);
+ kfree(data);
+}
+
+static int avs_dai_fe_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai)
+{
+ struct snd_pcm_hw_params *be_hw_params = NULL;
+ struct snd_soc_pcm_runtime *fe, *be;
+ struct snd_soc_dpcm *dpcm;
+ struct avs_dma_data *data;
+ struct hdac_ext_stream *host_stream;
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (data->path)
+ return 0;
+
+ host_stream = data->host_stream;
+
+ hdac_stream(host_stream)->bufsize = 0;
+ hdac_stream(host_stream)->period_bytes = 0;
+ hdac_stream(host_stream)->format_val = 0;
+
+ fe = asoc_substream_to_rtd(substream);
+ for_each_dpcm_be(fe, substream->stream, dpcm) {
+ be = dpcm->be;
+ be_hw_params = &be->dpcm[substream->stream].hw_params;
+ }
+
+ ret = avs_dai_hw_params(substream, hw_params, be_hw_params, dai,
+ hdac_stream(host_stream)->stream_tag - 1);
+ if (ret)
+ goto create_err;
+
+ ret = avs_path_bind(data->path);
+ if (ret < 0) {
+ dev_err(dai->dev, "bind FE <-> BE failed: %d\n", ret);
+ goto bind_err;
+ }
+
+ return 0;
+
+bind_err:
+ avs_path_free(data->path);
+ data->path = NULL;
+create_err:
+ snd_pcm_lib_free_pages(substream);
+ return ret;
+}
+
+static int avs_dai_fe_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ struct hdac_ext_stream *host_stream;
+ int ret;
+
+ dev_dbg(dai->dev, "%s fe HW_FREE str %p rtd %p",
+ __func__, substream, substream->runtime);
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (!data->path)
+ return 0;
+
+ host_stream = data->host_stream;
+
+ ret = avs_path_unbind(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "unbind FE <-> BE failed: %d\n", ret);
+
+ avs_path_free(data->path);
+ data->path = NULL;
+ snd_hdac_stream_cleanup(hdac_stream(host_stream));
+ hdac_stream(host_stream)->prepared = false;
+
+ ret = snd_pcm_lib_free_pages(substream);
+ if (ret < 0)
+ dev_dbg(dai->dev, "Failed to free pages!\n");
+
+ return ret;
+}
+
+static int avs_dai_fe_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct avs_dma_data *data;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_ext_stream *host_stream;
+ struct hdac_bus *bus;
+ unsigned int format_val;
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ host_stream = data->host_stream;
+
+ if (hdac_stream(host_stream)->prepared)
+ return 0;
+
+ bus = hdac_stream(host_stream)->bus;
+ snd_hdac_ext_stream_decouple(bus, data->host_stream, true);
+ snd_hdac_stream_reset(hdac_stream(host_stream));
+
+ format_val = snd_hdac_calc_stream_format(runtime->rate, runtime->channels, runtime->format,
+ runtime->sample_bits, 0);
+
+ ret = snd_hdac_stream_set_params(hdac_stream(host_stream), format_val);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_hdac_stream_setup(hdac_stream(host_stream));
+ if (ret < 0)
+ return ret;
+
+ ret = avs_dai_prepare(adev, substream, dai);
+ if (ret)
+ return ret;
+
+ hdac_stream(host_stream)->prepared = true;
+ return 0;
+}
+
+static int avs_dai_fe_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
+{
+ struct avs_dma_data *data;
+ struct hdac_ext_stream *host_stream;
+ struct hdac_bus *bus;
+ unsigned long flags;
+ int ret = 0;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ host_stream = data->host_stream;
+ bus = hdac_stream(host_stream)->bus;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ snd_hdac_stream_start(hdac_stream(host_stream), true);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
+
+ ret = avs_path_run(data->path, AVS_TPLG_TRIGGER_AUTO);
+ if (ret < 0)
+ dev_err(dai->dev, "run FE path failed: %d\n", ret);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = avs_path_pause(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "pause FE path failed: %d\n", ret);
+
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ snd_hdac_stream_stop(hdac_stream(host_stream));
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
+
+ if (cmd == SNDRV_PCM_TRIGGER_STOP) {
+ ret = avs_path_reset(data->path);
+ if (ret < 0)
+ dev_err(dai->dev, "reset FE path failed: %d\n", ret);
+ }
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+const struct snd_soc_dai_ops avs_dai_fe_ops = {
+ .startup = avs_dai_fe_startup,
+ .shutdown = avs_dai_fe_shutdown,
+ .hw_params = avs_dai_fe_hw_params,
+ .hw_free = avs_dai_fe_hw_free,
+ .prepare = avs_dai_fe_prepare,
+ .trigger = avs_dai_fe_trigger,
+};
+
+static ssize_t topology_name_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct snd_soc_component *component = file->private_data;
+ struct snd_soc_card *card = component->card;
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
+ char buf[64];
+ size_t len;
+
+ len = scnprintf(buf, sizeof(buf), "%s/%s\n", component->driver->topology_name_prefix,
+ mach->tplg_filename);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static const struct file_operations topology_name_fops = {
+ .open = simple_open,
+ .read = topology_name_read,
+ .llseek = default_llseek,
+};
+
+static int avs_component_load_libraries(struct avs_soc_component *acomp)
+{
+ struct avs_tplg *tplg = acomp->tplg;
+ struct avs_dev *adev = to_avs_dev(acomp->base.dev);
+ int ret;
+
+ if (!tplg->num_libs)
+ return 0;
+
+ /* Parent device may be asleep and library loading involves IPCs. */
+ ret = pm_runtime_resume_and_get(adev->dev);
+ if (ret < 0)
+ return ret;
+
+ avs_hda_clock_gating_enable(adev, false);
+ avs_hda_l1sen_enable(adev, false);
+
+ ret = avs_dsp_load_libraries(adev, tplg->libs, tplg->num_libs);
+
+ avs_hda_l1sen_enable(adev, true);
+ avs_hda_clock_gating_enable(adev, true);
+
+ if (!ret)
+ ret = avs_module_info_init(adev, false);
+
+ pm_runtime_mark_last_busy(adev->dev);
+ pm_runtime_put_autosuspend(adev->dev);
+
+ return ret;
+}
+
+static int avs_component_probe(struct snd_soc_component *component)
+{
+ struct snd_soc_card *card = component->card;
+ struct snd_soc_acpi_mach *mach;
+ struct avs_soc_component *acomp;
+ struct avs_dev *adev;
+ char *filename;
+ int ret;
+
+ dev_dbg(card->dev, "probing %s card %s\n", component->name, card->name);
+ mach = dev_get_platdata(card->dev);
+ acomp = to_avs_soc_component(component);
+ adev = to_avs_dev(component->dev);
+
+ acomp->tplg = avs_tplg_new(component);
+ if (!acomp->tplg)
+ return -ENOMEM;
+
+ if (!mach->tplg_filename)
+ goto finalize;
+
+ /* Load specified topology and create debugfs for it. */
+ filename = kasprintf(GFP_KERNEL, "%s/%s", component->driver->topology_name_prefix,
+ mach->tplg_filename);
+ if (!filename)
+ return -ENOMEM;
+
+ ret = avs_load_topology(component, filename);
+ kfree(filename);
+ if (ret < 0)
+ return ret;
+
+ ret = avs_component_load_libraries(acomp);
+ if (ret < 0) {
+ dev_err(card->dev, "libraries loading failed: %d\n", ret);
+ goto err_load_libs;
+ }
+
+finalize:
+ debugfs_create_file("topology_name", 0444, component->debugfs_root, component,
+ &topology_name_fops);
+
+ mutex_lock(&adev->comp_list_mutex);
+ list_add_tail(&acomp->node, &adev->comp_list);
+ mutex_unlock(&adev->comp_list_mutex);
+
+ return 0;
+
+err_load_libs:
+ avs_remove_topology(component);
+ return ret;
+}
+
+static void avs_component_remove(struct snd_soc_component *component)
+{
+ struct avs_soc_component *acomp = to_avs_soc_component(component);
+ struct snd_soc_acpi_mach *mach;
+ struct avs_dev *adev = to_avs_dev(component->dev);
+ int ret;
+
+ mach = dev_get_platdata(component->card->dev);
+
+ mutex_lock(&adev->comp_list_mutex);
+ list_del(&acomp->node);
+ mutex_unlock(&adev->comp_list_mutex);
+
+ if (mach->tplg_filename) {
+ ret = avs_remove_topology(component);
+ if (ret < 0)
+ dev_err(component->dev, "unload topology failed: %d\n", ret);
+ }
+}
+
+static int avs_component_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct snd_pcm_hardware hwparams;
+
+ /* only FE DAI links are handled here */
+ if (rtd->dai_link->no_pcm)
+ return 0;
+
+ hwparams.info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_NO_PERIOD_WAKEUP;
+
+ hwparams.formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE;
+ hwparams.period_bytes_min = 128;
+ hwparams.period_bytes_max = AZX_MAX_BUF_SIZE / 2;
+ hwparams.periods_min = 2;
+ hwparams.periods_max = AZX_MAX_FRAG;
+ hwparams.buffer_bytes_max = AZX_MAX_BUF_SIZE;
+ hwparams.fifo_size = 0;
+
+ return snd_soc_set_runtime_hwparams(substream, &hwparams);
+}
+
+static unsigned int avs_hda_stream_dpib_read(struct hdac_ext_stream *stream)
+{
+ return readl(hdac_stream(stream)->bus->remap_addr + AZX_REG_VS_SDXDPIB_XBASE +
+ (AZX_REG_VS_SDXDPIB_XINTERVAL * hdac_stream(stream)->index));
+}
+
+static snd_pcm_uframes_t
+avs_component_pointer(struct snd_soc_component *component, struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct avs_dma_data *data;
+ struct hdac_ext_stream *host_stream;
+ unsigned int pos;
+
+ data = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+ if (!data->host_stream)
+ return 0;
+
+ host_stream = data->host_stream;
+ pos = avs_hda_stream_dpib_read(host_stream);
+
+ if (pos >= hdac_stream(host_stream)->bufsize)
+ pos = 0;
+
+ return bytes_to_frames(substream->runtime, pos);
+}
+
+static int avs_component_mmap(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ return snd_pcm_lib_default_mmap(substream, vma);
+}
+
+#define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
+
+static int avs_component_construct(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
+ struct snd_pcm *pcm = rtd->pcm;
+
+ if (dai->driver->playback.channels_min)
+ snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
+ SNDRV_DMA_TYPE_DEV_SG, component->dev, 0,
+ MAX_PREALLOC_SIZE);
+
+ if (dai->driver->capture.channels_min)
+ snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
+ SNDRV_DMA_TYPE_DEV_SG, component->dev, 0,
+ MAX_PREALLOC_SIZE);
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver avs_component_driver = {
+ .name = "avs-pcm",
+ .probe = avs_component_probe,
+ .remove = avs_component_remove,
+ .open = avs_component_open,
+ .pointer = avs_component_pointer,
+ .mmap = avs_component_mmap,
+ .pcm_construct = avs_component_construct,
+ .module_get_upon_open = 1, /* increment refcount when a pcm is opened */
+ .topology_name_prefix = "intel/avs",
+};
+
+static int avs_soc_component_register(struct device *dev, const char *name,
+ const struct snd_soc_component_driver *drv,
+ struct snd_soc_dai_driver *cpu_dais, int num_cpu_dais)
+{
+ struct avs_soc_component *acomp;
+ int ret;
+
+ acomp = devm_kzalloc(dev, sizeof(*acomp), GFP_KERNEL);
+ if (!acomp)
+ return -ENOMEM;
+
+ ret = snd_soc_component_initialize(&acomp->base, drv, dev);
+ if (ret < 0)
+ return ret;
+
+ /* force name change after ASoC is done with its init */
+ acomp->base.name = name;
+ INIT_LIST_HEAD(&acomp->node);
+
+ return snd_soc_add_component(&acomp->base, cpu_dais, num_cpu_dais);
+}
+
+static struct snd_soc_dai_driver dmic_cpu_dais[] = {
+{
+ .name = "DMIC Pin",
+ .ops = &avs_dai_nonhda_be_ops,
+ .capture = {
+ .stream_name = "DMIC Rx",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "DMIC WoV Pin",
+ .ops = &avs_dai_nonhda_be_ops,
+ .capture = {
+ .stream_name = "DMIC WoV Rx",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
+};
+
+int avs_dmic_platform_register(struct avs_dev *adev, const char *name)
+{
+ return avs_soc_component_register(adev->dev, name, &avs_component_driver, dmic_cpu_dais,
+ ARRAY_SIZE(dmic_cpu_dais));
+}
+
+static const struct snd_soc_dai_driver i2s_dai_template = {
+ .ops = &avs_dai_nonhda_be_ops,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000 |
+ SNDRV_PCM_RATE_KNOT,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000 |
+ SNDRV_PCM_RATE_KNOT,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ },
+};
+
+int avs_i2s_platform_register(struct avs_dev *adev, const char *name, unsigned long port_mask,
+ unsigned long *tdms)
+{
+ struct snd_soc_dai_driver *cpus, *dai;
+ size_t ssp_count, cpu_count;
+ int i, j;
+
+ ssp_count = adev->hw_cfg.i2s_caps.ctrl_count;
+ cpu_count = hweight_long(port_mask);
+ if (tdms)
+ for_each_set_bit(i, &port_mask, ssp_count)
+ cpu_count += hweight_long(tdms[i]);
+
+ cpus = devm_kzalloc(adev->dev, sizeof(*cpus) * cpu_count, GFP_KERNEL);
+ if (!cpus)
+ return -ENOMEM;
+
+ dai = cpus;
+ for_each_set_bit(i, &port_mask, ssp_count) {
+ memcpy(dai, &i2s_dai_template, sizeof(*dai));
+
+ dai->name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "SSP%d Pin", i);
+ dai->playback.stream_name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "ssp%d Tx", i);
+ dai->capture.stream_name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "ssp%d Rx", i);
+
+ if (!dai->name || !dai->playback.stream_name || !dai->capture.stream_name)
+ return -ENOMEM;
+ dai++;
+ }
+
+ if (!tdms)
+ goto plat_register;
+
+ for_each_set_bit(i, &port_mask, ssp_count) {
+ for_each_set_bit(j, &tdms[i], ssp_count) {
+ memcpy(dai, &i2s_dai_template, sizeof(*dai));
+
+ dai->name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "SSP%d:%d Pin", i, j);
+ dai->playback.stream_name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "ssp%d:%d Tx", i, j);
+ dai->capture.stream_name =
+ devm_kasprintf(adev->dev, GFP_KERNEL, "ssp%d:%d Rx", i, j);
+
+ if (!dai->name || !dai->playback.stream_name || !dai->capture.stream_name)
+ return -ENOMEM;
+ dai++;
+ }
+ }
+
+plat_register:
+ return avs_soc_component_register(adev->dev, name, &avs_component_driver, cpus, cpu_count);
+}
+
+/* HD-Audio CPU DAI template */
+static const struct snd_soc_dai_driver hda_cpu_dai = {
+ .ops = &avs_dai_hda_be_ops,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ },
+};
+
+static void avs_component_hda_unregister_dais(struct snd_soc_component *component)
+{
+ struct snd_soc_acpi_mach *mach;
+ struct snd_soc_dai *dai, *save;
+ struct hda_codec *codec;
+ char name[32];
+
+ mach = dev_get_platdata(component->card->dev);
+ codec = mach->pdata;
+ sprintf(name, "%s-cpu", dev_name(&codec->core.dev));
+
+ for_each_component_dais_safe(component, dai, save) {
+ if (!strstr(dai->driver->name, name))
+ continue;
+
+ if (dai->playback_widget)
+ snd_soc_dapm_free_widget(dai->playback_widget);
+ if (dai->capture_widget)
+ snd_soc_dapm_free_widget(dai->capture_widget);
+ snd_soc_unregister_dai(dai);
+ }
+}
+
+static int avs_component_hda_probe(struct snd_soc_component *component)
+{
+ struct snd_soc_dapm_context *dapm;
+ struct snd_soc_dai_driver *dais;
+ struct snd_soc_acpi_mach *mach;
+ struct hda_codec *codec;
+ struct hda_pcm *pcm;
+ const char *cname;
+ int pcm_count = 0, ret, i;
+
+ mach = dev_get_platdata(component->card->dev);
+ if (!mach)
+ return -EINVAL;
+
+ codec = mach->pdata;
+ if (list_empty(&codec->pcm_list_head))
+ return -EINVAL;
+ list_for_each_entry(pcm, &codec->pcm_list_head, list)
+ pcm_count++;
+
+ dais = devm_kcalloc(component->dev, pcm_count, sizeof(*dais),
+ GFP_KERNEL);
+ if (!dais)
+ return -ENOMEM;
+
+ cname = dev_name(&codec->core.dev);
+ dapm = snd_soc_component_get_dapm(component);
+ pcm = list_first_entry(&codec->pcm_list_head, struct hda_pcm, list);
+
+ for (i = 0; i < pcm_count; i++, pcm = list_next_entry(pcm, list)) {
+ struct snd_soc_dai *dai;
+
+ memcpy(&dais[i], &hda_cpu_dai, sizeof(*dais));
+ dais[i].id = i;
+ dais[i].name = devm_kasprintf(component->dev, GFP_KERNEL,
+ "%s-cpu%d", cname, i);
+ if (!dais[i].name) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+
+ if (pcm->stream[0].substreams) {
+ dais[i].playback.stream_name =
+ devm_kasprintf(component->dev, GFP_KERNEL,
+ "%s-cpu%d Tx", cname, i);
+ if (!dais[i].playback.stream_name) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+ }
+
+ if (pcm->stream[1].substreams) {
+ dais[i].capture.stream_name =
+ devm_kasprintf(component->dev, GFP_KERNEL,
+ "%s-cpu%d Rx", cname, i);
+ if (!dais[i].capture.stream_name) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+ }
+
+ dai = snd_soc_register_dai(component, &dais[i], false);
+ if (!dai) {
+ dev_err(component->dev, "register dai for %s failed\n",
+ pcm->name);
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
+ if (ret < 0) {
+ dev_err(component->dev, "create widgets failed: %d\n",
+ ret);
+ goto exit;
+ }
+ }
+
+ ret = avs_component_probe(component);
+exit:
+ if (ret)
+ avs_component_hda_unregister_dais(component);
+
+ return ret;
+}
+
+static void avs_component_hda_remove(struct snd_soc_component *component)
+{
+ avs_component_hda_unregister_dais(component);
+ avs_component_remove(component);
+}
+
+static int avs_component_hda_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct hdac_ext_stream *link_stream;
+ struct hda_codec *codec;
+
+ /* only BE DAI links are handled here */
+ if (!rtd->dai_link->no_pcm)
+ return avs_component_open(component, substream);
+
+ codec = dev_to_hda_codec(asoc_rtd_to_codec(rtd, 0)->dev);
+ link_stream = snd_hdac_ext_stream_assign(&codec->bus->core, substream,
+ HDAC_EXT_STREAM_TYPE_LINK);
+ if (!link_stream)
+ return -EBUSY;
+
+ substream->runtime->private_data = link_stream;
+ return 0;
+}
+
+static int avs_component_hda_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct hdac_ext_stream *link_stream;
+
+ /* only BE DAI links are handled here */
+ if (!rtd->dai_link->no_pcm)
+ return 0;
+
+ link_stream = substream->runtime->private_data;
+ snd_hdac_ext_stream_release(link_stream, HDAC_EXT_STREAM_TYPE_LINK);
+ substream->runtime->private_data = NULL;
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver avs_hda_component_driver = {
+ .name = "avs-hda-pcm",
+ .probe = avs_component_hda_probe,
+ .remove = avs_component_hda_remove,
+ .open = avs_component_hda_open,
+ .close = avs_component_hda_close,
+ .pointer = avs_component_pointer,
+ .mmap = avs_component_mmap,
+ .pcm_construct = avs_component_construct,
+ /*
+ * hda platform component's probe() is dependent on
+ * codec->pcm_list_head, it needs to be initialized after codec
+ * component. remove_order is here for completeness sake
+ */
+ .probe_order = SND_SOC_COMP_ORDER_LATE,
+ .remove_order = SND_SOC_COMP_ORDER_EARLY,
+ .module_get_upon_open = 1,
+ .topology_name_prefix = "intel/avs",
+};
+
+int avs_hda_platform_register(struct avs_dev *adev, const char *name)
+{
+ return avs_soc_component_register(adev->dev, name,
+ &avs_hda_component_driver, NULL, 0);
+}