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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/intel/avs/probes.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/intel/avs/probes.c')
-rw-r--r--sound/soc/intel/avs/probes.c294
1 files changed, 294 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/probes.c b/sound/soc/intel/avs/probes.c
new file mode 100644
index 0000000000..4cab8c6c45
--- /dev/null
+++ b/sound/soc/intel/avs/probes.c
@@ -0,0 +1,294 @@
+// 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 <sound/compress_driver.h>
+#include <sound/hdaudio_ext.h>
+#include <sound/hdaudio.h>
+#include <sound/soc.h>
+#include "avs.h"
+#include "messages.h"
+
+static int avs_dsp_init_probe(struct avs_dev *adev, union avs_connector_node_id node_id,
+ size_t buffer_size)
+{
+ struct avs_probe_cfg cfg = {{0}};
+ struct avs_module_entry mentry;
+ u8 dummy;
+
+ avs_get_module_entry(adev, &AVS_PROBE_MOD_UUID, &mentry);
+
+ /*
+ * Probe module uses no cycles, audio data format and input and output
+ * frame sizes are unused. It is also not owned by any pipeline.
+ */
+ cfg.base.ibs = 1;
+ /* BSS module descriptor is always segment of index=2. */
+ cfg.base.is_pages = mentry.segments[2].flags.length;
+ cfg.gtw_cfg.node_id = node_id;
+ cfg.gtw_cfg.dma_buffer_size = buffer_size;
+
+ return avs_dsp_init_module(adev, mentry.module_id, INVALID_PIPELINE_ID, 0, 0, &cfg,
+ sizeof(cfg), &dummy);
+}
+
+static void avs_dsp_delete_probe(struct avs_dev *adev)
+{
+ struct avs_module_entry mentry;
+
+ avs_get_module_entry(adev, &AVS_PROBE_MOD_UUID, &mentry);
+
+ /* There is only ever one probe module instance. */
+ avs_dsp_delete_module(adev, mentry.module_id, 0, INVALID_PIPELINE_ID, 0);
+}
+
+static inline struct hdac_ext_stream *avs_compr_get_host_stream(struct snd_compr_stream *cstream)
+{
+ return cstream->runtime->private_data;
+}
+
+static int avs_probe_compr_open(struct snd_compr_stream *cstream, struct snd_soc_dai *dai)
+{
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_bus *bus = &adev->base.core;
+ struct hdac_ext_stream *host_stream;
+
+ if (adev->extractor) {
+ dev_err(dai->dev, "Cannot open more than one extractor stream\n");
+ return -EEXIST;
+ }
+
+ host_stream = snd_hdac_ext_cstream_assign(bus, cstream);
+ if (!host_stream) {
+ dev_err(dai->dev, "Failed to assign HDAudio stream for extraction\n");
+ return -EBUSY;
+ }
+
+ adev->extractor = host_stream;
+ hdac_stream(host_stream)->curr_pos = 0;
+ cstream->runtime->private_data = host_stream;
+
+ return 0;
+}
+
+static int avs_probe_compr_free(struct snd_compr_stream *cstream, struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *host_stream = avs_compr_get_host_stream(cstream);
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct avs_probe_point_desc *desc;
+ /* Extractor node identifier. */
+ unsigned int vindex = INVALID_NODE_ID.vindex;
+ size_t num_desc;
+ int i, ret;
+
+ /* Disconnect all probe points. */
+ ret = avs_ipc_probe_get_points(adev, &desc, &num_desc);
+ if (ret) {
+ dev_err(dai->dev, "get probe points failed: %d\n", ret);
+ ret = AVS_IPC_RET(ret);
+ goto exit;
+ }
+
+ for (i = 0; i < num_desc; i++)
+ if (desc[i].node_id.vindex == vindex)
+ avs_ipc_probe_disconnect_points(adev, &desc[i].id, 1);
+ kfree(desc);
+
+exit:
+ if (adev->num_probe_streams) {
+ adev->num_probe_streams--;
+ if (!adev->num_probe_streams) {
+ avs_dsp_delete_probe(adev);
+ avs_dsp_enable_d0ix(adev);
+ }
+ }
+
+ snd_hdac_stream_cleanup(hdac_stream(host_stream));
+ hdac_stream(host_stream)->prepared = 0;
+ snd_hdac_ext_stream_release(host_stream, HDAC_EXT_STREAM_TYPE_HOST);
+
+ snd_compr_free_pages(cstream);
+ adev->extractor = NULL;
+
+ return ret;
+}
+
+static int avs_probe_compr_set_params(struct snd_compr_stream *cstream,
+ struct snd_compr_params *params, struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *host_stream = avs_compr_get_host_stream(cstream);
+ struct snd_compr_runtime *rtd = cstream->runtime;
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ /* compr params do not store bit depth, default to S32_LE. */
+ snd_pcm_format_t format = SNDRV_PCM_FORMAT_S32_LE;
+ unsigned int format_val;
+ int bps, ret;
+
+ hdac_stream(host_stream)->bufsize = 0;
+ hdac_stream(host_stream)->period_bytes = 0;
+ hdac_stream(host_stream)->format_val = 0;
+ cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG;
+ cstream->dma_buffer.dev.dev = adev->dev;
+
+ ret = snd_compr_malloc_pages(cstream, rtd->buffer_size);
+ if (ret < 0)
+ return ret;
+ bps = snd_pcm_format_physical_width(format);
+ if (bps < 0)
+ return bps;
+ format_val = snd_hdac_calc_stream_format(params->codec.sample_rate, params->codec.ch_out,
+ format, bps, 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;
+
+ hdac_stream(host_stream)->prepared = 1;
+
+ if (!adev->num_probe_streams) {
+ union avs_connector_node_id node_id;
+
+ /* D0ix not allowed during probing. */
+ ret = avs_dsp_disable_d0ix(adev);
+ if (ret)
+ return ret;
+
+ node_id.vindex = hdac_stream(host_stream)->stream_tag - 1;
+ node_id.dma_type = AVS_DMA_HDA_HOST_INPUT;
+
+ ret = avs_dsp_init_probe(adev, node_id, rtd->dma_bytes);
+ if (ret < 0) {
+ dev_err(dai->dev, "probe init failed: %d\n", ret);
+ avs_dsp_enable_d0ix(adev);
+ return ret;
+ }
+ }
+
+ adev->num_probe_streams++;
+ return 0;
+}
+
+static int avs_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *host_stream = avs_compr_get_host_stream(cstream);
+ struct avs_dev *adev = to_avs_dev(dai->dev);
+ struct hdac_bus *bus = &adev->base.core;
+ unsigned long cookie;
+
+ if (!hdac_stream(host_stream)->prepared)
+ return -EPIPE;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ spin_lock_irqsave(&bus->reg_lock, cookie);
+ snd_hdac_stream_start(hdac_stream(host_stream));
+ spin_unlock_irqrestore(&bus->reg_lock, cookie);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ spin_lock_irqsave(&bus->reg_lock, cookie);
+ snd_hdac_stream_stop(hdac_stream(host_stream));
+ spin_unlock_irqrestore(&bus->reg_lock, cookie);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int avs_probe_compr_pointer(struct snd_compr_stream *cstream,
+ struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai)
+{
+ struct hdac_ext_stream *host_stream = avs_compr_get_host_stream(cstream);
+ struct snd_soc_pcm_stream *pstream;
+
+ pstream = &dai->driver->capture;
+ tstamp->copied_total = hdac_stream(host_stream)->curr_pos;
+ tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);
+
+ return 0;
+}
+
+static int avs_probe_compr_copy(struct snd_soc_component *comp, struct snd_compr_stream *cstream,
+ char __user *buf, size_t count)
+{
+ struct snd_compr_runtime *rtd = cstream->runtime;
+ unsigned int offset, n;
+ void *ptr;
+ int ret;
+
+ if (count > rtd->buffer_size)
+ count = rtd->buffer_size;
+
+ div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset);
+ ptr = rtd->dma_area + offset;
+ n = rtd->buffer_size - offset;
+
+ if (count < n) {
+ ret = copy_to_user(buf, ptr, count);
+ } else {
+ ret = copy_to_user(buf, ptr, n);
+ ret += copy_to_user(buf + n, rtd->dma_area, count - n);
+ }
+
+ if (ret)
+ return count - ret;
+ return count;
+}
+
+static const struct snd_soc_cdai_ops avs_probe_cdai_ops = {
+ .startup = avs_probe_compr_open,
+ .shutdown = avs_probe_compr_free,
+ .set_params = avs_probe_compr_set_params,
+ .trigger = avs_probe_compr_trigger,
+ .pointer = avs_probe_compr_pointer,
+};
+
+static const struct snd_soc_dai_ops avs_probe_dai_ops = {
+ .compress_new = snd_soc_new_compress,
+};
+
+static const struct snd_compress_ops avs_probe_compress_ops = {
+ .copy = avs_probe_compr_copy,
+};
+
+static struct snd_soc_dai_driver probe_cpu_dais[] = {
+{
+ .name = "Probe Extraction CPU DAI",
+ .cops = &avs_probe_cdai_ops,
+ .ops = &avs_probe_dai_ops,
+ .capture = {
+ .stream_name = "Probe Extraction",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ },
+},
+};
+
+static const struct snd_soc_component_driver avs_probe_component_driver = {
+ .name = "avs-probe-compr",
+ .compress_ops = &avs_probe_compress_ops,
+ .module_get_upon_open = 1, /* increment refcount when a stream is opened */
+};
+
+int avs_probe_platform_register(struct avs_dev *adev, const char *name)
+{
+ return avs_soc_component_register(adev->dev, name, &avs_probe_component_driver,
+ probe_cpu_dais, ARRAY_SIZE(probe_cpu_dais));
+}