@@ -10,6 +10,7 @@
#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>
@@ -29,6 +30,356 @@ struct avs_pcm_dma_data {
struct hdac_ext_stream *host_stream;
};
+static struct avs_tplg_path_template *
+avs_pcm_find_path_template(struct snd_soc_dai *dai,
+ struct snd_soc_component *component,
+ bool 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 = fe ? SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN;
+ } else {
+ dw = dai->playback_widget;
+ dir = 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_pcm_hw_params(struct avs_dev *adev,
+ 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_pcm_dma_data *data;
+ struct avs_path *path;
+ 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 BE path failed: %d\n", ret);
+ return ret;
+ }
+
+ data->path = path;
+ return 0;
+}
+
+static int avs_pcm_fe_hw_params(struct avs_dev *adev,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *fe_hw_params,
+ struct snd_soc_dai *dai, int dma_id)
+{
+ struct snd_pcm_hw_params *be_hw_params = NULL;
+ struct snd_soc_pcm_runtime *fe, *be;
+ struct snd_soc_dpcm *dpcm;
+
+ 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;
+ }
+
+ return avs_pcm_hw_params(adev, 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_pcm_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 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_dev *adev = to_avs_dev(dai->dev);
+ struct avs_tplg_path_template *template;
+ struct avs_pcm_dma_data *data;
+ struct hdac_bus *bus = &adev->base.core;
+ struct hdac_ext_stream *estream;
+
+ template = avs_pcm_find_path_template(dai, dai->component, true,
+ 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;
+
+ estream = snd_hdac_ext_stream_assign(bus, substream,
+ HDAC_EXT_STREAM_TYPE_HOST);
+ if (!estream) {
+ kfree(data);
+ return -EBUSY;
+ }
+
+ snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ /* avoid wrap-around with wall-clock */
+ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME,
+ 20, 178000000);
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ &hw_rates);
+
+ dev_dbg(dai->dev, "%s fe STARTUP tag %d str %p",
+ __func__, hdac_stream(estream)->stream_tag, substream);
+
+ data->host_stream = estream;
+ data->template = template;
+ snd_soc_dai_set_dma_data(dai, substream, data);
+ snd_pcm_set_sync(substream);
+
+ return 0;
+}
+
+static void avs_dai_fe_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct avs_pcm_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 avs_pcm_dma_data *data;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_stream *hstream;
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ if (data->path)
+ return 0;
+
+ hstream = hdac_stream(data->host_stream);
+ hstream->bufsize = 0;
+ hstream->period_bytes = 0;
+ hstream->format_val = 0;
+
+ ret = avs_pcm_fe_hw_params(adev, substream, hw_params, dai,
+ hstream->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_pcm_dma_data *data;
+ struct hdac_stream *hstream;
+ 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;
+
+ hstream = hdac_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(hstream);
+ hstream->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_pcm_dma_data *data;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_stream *hstream;
+ struct hdac_bus *bus;
+ unsigned int format_val;
+ int ret;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ hstream = hdac_stream(data->host_stream);
+
+ if (hstream->prepared)
+ return 0;
+
+ bus = hstream->bus;
+ snd_hdac_ext_stream_decouple(bus, data->host_stream, true);
+ snd_hdac_stream_reset(hstream);
+
+ format_val = snd_hdac_calc_stream_format(runtime->rate,
+ runtime->channels,
+ runtime->format,
+ runtime->sample_bits, 0);
+
+ ret = snd_hdac_stream_set_params(hstream, format_val);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_hdac_stream_setup(hstream);
+ if (ret < 0)
+ return ret;
+
+ ret = avs_dai_prepare(adev, substream, dai);
+ if (ret)
+ return ret;
+
+ hstream->prepared = true;
+ return 0;
+}
+
+static int avs_dai_fe_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct avs_pcm_dma_data *data;
+ struct hdac_stream *hstream;
+ struct hdac_bus *bus;
+ unsigned long flags;
+ int ret = 0;
+
+ data = snd_soc_dai_get_dma_data(dai, substream);
+ hstream = hdac_stream(data->host_stream);
+ bus = hstream->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(hstream, 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(hstream);
+ 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)
{
@@ -15,8 +15,6 @@
#include "avs.h"
#include "topology.h"
-const struct snd_soc_dai_ops avs_dai_fe_ops;
-
/* Vendor tuples manipulation helpers */
#define avs_tplg_vendor_array_at(array, offset) \
((struct snd_soc_tplg_vendor_array *)((u8 *)array + offset))