new file mode 100644
@@ -0,0 +1,24 @@
+What: /sys/devices/pci0000:00/<dev>/<tplg_name>/<path_template>:<path>/<pipeline>/state
+Date: December 2021
+Contact: Cezary Rojewski <cezary.rojewski@intel.com>
+Description:
+ File is only present when specific pipeline is instantiated in
+ driver. It is used to check or change pipeline state. Possible
+ read values: invalid, uninitialized, reset, paused, running,
+ eos, error_stop, saved, restored.
+ Allows only to set state to: reset, paused, running.
+
+What: /sys/devices/pci0000:00/<dev>/<tplg_name>/<path_template>:<path>/<pipeline>/<module>/fw_id
+Date: December 2021
+Contact: Cezary Rojewski <cezary.rojewski@intel.com>
+Description:
+ File is only present when specific module is instantiated in
+ driver. Used to get module id used by FW for module in question.
+
+What: /sys/devices/pci0000:00/<dev>/<tplg_name>/<path_template>:<path>/<pipeline>/<module>/fw_instance
+Date: December 2021
+Contact: Cezary Rojewski <cezary.rojewski@intel.com>
+Description:
+ File is only present when specific module is instantiated in
+ driver. Used to get instance id assigned from pool of ids
+ for module in question.
@@ -218,6 +218,7 @@ config SND_SOC_INTEL_AVS
select SND_SOC_ACPI
select SND_SOC_TOPOLOGY
select SND_HDA_EXT_CORE
+ select SND_INTEL_NHLT
help
Enable support for Intel(R) cAVS 1.5 platforms with DSP
capabilities. This includes Skylake, Kabylake, Amberlake and
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o topology.o
+snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o topology.o path.o
obj-$(CONFIG_SND_SOC_INTEL_AVS) += snd-soc-avs.o
@@ -79,6 +79,13 @@ struct avs_dev {
atomic_t *core_refs;
struct completion fw_ready;
+
+ struct nhlt_acpi_table *nhlt;
+ struct list_head comp_list;
+ struct mutex comp_list_mutex;
+ struct list_head path_list;
+ spinlock_t path_list_lock;
+ struct mutex path_mutex;
};
/* from hda_bus to avs_dev */
new file mode 100644
@@ -0,0 +1,1012 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <sound/intel-nhlt.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "avs.h"
+#include "path.h"
+#include "topology.h"
+
+/* Must be called with adev->comp_list_mutex held. */
+static struct avs_tplg *
+avs_path_find_tplg(struct avs_dev *adev, const char *name)
+{
+ struct avs_soc_component *acomp;
+
+ list_for_each_entry(acomp, &adev->comp_list, node)
+ if (!strcmp(acomp->tplg->name, name))
+ return acomp->tplg;
+ return NULL;
+}
+
+static struct avs_path_module *
+avs_path_find_module(struct avs_path_pipeline *ppl, u32 template_id)
+{
+ struct avs_path_module *mod;
+
+ list_for_each_entry(mod, &ppl->mod_list, node)
+ if (mod->template->id == template_id)
+ return mod;
+ return NULL;
+}
+
+static struct avs_path_pipeline *
+avs_path_find_pipeline(struct avs_path *path, u32 template_id)
+{
+ struct avs_path_pipeline *ppl;
+
+ list_for_each_entry(ppl, &path->ppl_list, node)
+ if (ppl->template->id == template_id)
+ return ppl;
+ return NULL;
+}
+
+static struct avs_path *
+avs_path_find_path(struct avs_dev *adev, const char *name, u32 template_id)
+{
+ struct avs_tplg_path_template *pos, *template = NULL;
+ struct avs_tplg *tplg;
+ struct avs_path *path;
+
+ tplg = avs_path_find_tplg(adev, name);
+ if (!tplg)
+ return NULL;
+
+ list_for_each_entry(pos, &tplg->path_tmpl_list, node) {
+ if (pos->id == template_id) {
+ template = pos;
+ break;
+ }
+ }
+ if (!template)
+ return NULL;
+
+ spin_lock(&adev->path_list_lock);
+ /* Only one variant of given path template may be instantiated at a time. */
+ list_for_each_entry(path, &adev->path_list, node) {
+ if (path->template->owner == template) {
+ spin_unlock(&adev->path_list_lock);
+ return path;
+ }
+ }
+
+ spin_unlock(&adev->path_list_lock);
+ return NULL;
+}
+
+static bool avs_test_hw_params(struct snd_pcm_hw_params *params,
+ struct avs_audio_format *fmt)
+{
+ return (params_rate(params) == fmt->sampling_freq &&
+ params_channels(params) == fmt->num_channels &&
+ params_physical_width(params) == fmt->bit_depth &&
+ params_width(params) == fmt->valid_bit_depth);
+}
+
+static struct avs_tplg_path *
+avs_path_find_variant(struct avs_dev *adev,
+ struct avs_tplg_path_template *template,
+ struct snd_pcm_hw_params *fe_params,
+ struct snd_pcm_hw_params *be_params)
+{
+ struct avs_tplg_path *variant;
+
+ list_for_each_entry(variant, &template->path_list, node) {
+ dev_dbg(adev->dev, "check FE rate %d chn %d vbd %d bd %d\n",
+ variant->fe_fmt->sampling_freq, variant->fe_fmt->num_channels,
+ variant->fe_fmt->valid_bit_depth, variant->fe_fmt->bit_depth);
+ dev_dbg(adev->dev, "check BE rate %d chn %d vbd %d bd %d\n",
+ variant->be_fmt->sampling_freq, variant->be_fmt->num_channels,
+ variant->be_fmt->valid_bit_depth, variant->be_fmt->bit_depth);
+
+ if (variant->fe_fmt && avs_test_hw_params(fe_params, variant->fe_fmt) &&
+ variant->be_fmt && avs_test_hw_params(be_params, variant->be_fmt))
+ return variant;
+ }
+
+ return NULL;
+}
+
+__maybe_unused
+static bool avs_dma_type_is_host(u32 dma_type)
+{
+ return dma_type == AVS_DMA_HDA_HOST_OUTPUT ||
+ dma_type == AVS_DMA_HDA_HOST_INPUT;
+}
+
+__maybe_unused
+static bool avs_dma_type_is_link(u32 dma_type)
+{
+ return !avs_dma_type_is_host(dma_type);
+}
+
+__maybe_unused
+static bool avs_dma_type_is_output(u32 dma_type)
+{
+ return dma_type == AVS_DMA_HDA_HOST_OUTPUT ||
+ dma_type == AVS_DMA_HDA_LINK_OUTPUT ||
+ dma_type == AVS_DMA_I2S_LINK_OUTPUT;
+}
+
+__maybe_unused
+static bool avs_dma_type_is_input(u32 dma_type)
+{
+ return !avs_dma_type_is_output(dma_type);
+}
+
+static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct nhlt_acpi_table *nhlt = adev->nhlt;
+ struct avs_tplg_module *t = mod->template;
+ struct avs_copier_cfg *cfg;
+ struct nhlt_specific_cfg *ep_blob;
+ union avs_connector_node_id node_id = {0};
+ size_t cfg_size, data_size = 0;
+ void *data = NULL;
+ u32 dma_type;
+ int ret;
+
+ dma_type = t->cfg_ext->copier.dma_type;
+ node_id.dma_type = dma_type;
+
+ switch (dma_type) {
+ struct avs_audio_format *fmt;
+ int direction;
+
+ case AVS_DMA_I2S_LINK_OUTPUT:
+ case AVS_DMA_I2S_LINK_INPUT:
+ if (avs_dma_type_is_input(dma_type))
+ direction = SNDRV_PCM_STREAM_CAPTURE;
+ else
+ direction = SNDRV_PCM_STREAM_PLAYBACK;
+
+ if (t->cfg_ext->copier.blob_fmt)
+ fmt = t->cfg_ext->copier.blob_fmt;
+ else if (direction == SNDRV_PCM_STREAM_CAPTURE)
+ fmt = t->in_fmt;
+ else
+ fmt = t->cfg_ext->copier.out_fmt;
+
+ ep_blob = intel_nhlt_get_endpoint_blob(adev->dev,
+ nhlt, t->cfg_ext->copier.vindex.i2s.instance,
+ NHLT_LINK_SSP, fmt->valid_bit_depth, fmt->bit_depth,
+ fmt->num_channels, fmt->sampling_freq, direction,
+ NHLT_DEVICE_I2S);
+ if (!ep_blob) {
+ dev_err(adev->dev, "no I2S ep_blob found\n");
+ return -ENOENT;
+ }
+
+ data = ep_blob->caps;
+ data_size = ep_blob->size;
+ /* I2S gateway's vindex is statically assigned in topology */
+ node_id.vindex = t->cfg_ext->copier.vindex.val;
+
+ break;
+
+ case AVS_DMA_DMIC_LINK_INPUT:
+ direction = SNDRV_PCM_STREAM_CAPTURE;
+
+ if (t->cfg_ext->copier.blob_fmt)
+ fmt = t->cfg_ext->copier.blob_fmt;
+ else
+ fmt = t->in_fmt;
+
+ ep_blob = intel_nhlt_get_endpoint_blob(adev->dev, nhlt, 0,
+ NHLT_LINK_DMIC, fmt->valid_bit_depth,
+ fmt->bit_depth, fmt->num_channels,
+ fmt->sampling_freq, direction, NHLT_DEVICE_DMIC);
+ if (!ep_blob) {
+ dev_err(adev->dev, "no DMIC ep_blob found\n");
+ return -ENOENT;
+ }
+
+ data = ep_blob->caps;
+ data_size = ep_blob->size;
+ /* DMIC gateway's vindex is statically assigned in topology */
+ node_id.vindex = t->cfg_ext->copier.vindex.val;
+
+ break;
+
+ case AVS_DMA_HDA_HOST_OUTPUT:
+ case AVS_DMA_HDA_HOST_INPUT:
+ /* HOST gateway's vindex is dynamically assigned with DMA id */
+ node_id.vindex = mod->owner->owner->dma_id;
+ break;
+
+ case AVS_DMA_HDA_LINK_OUTPUT:
+ case AVS_DMA_HDA_LINK_INPUT:
+ node_id.vindex = t->cfg_ext->copier.vindex.val |
+ mod->owner->owner->dma_id;
+ break;
+
+ case INVALID_OBJECT_ID:
+ default:
+ node_id = INVALID_NODE_ID;
+ break;
+ }
+
+ cfg_size = sizeof(*cfg);
+ if (data_size) {
+ /* Gateway attributes are path of every config-BLOB. */
+ cfg_size -= sizeof(cfg->gtw_cfg.config.attrs);
+ cfg_size += data_size;
+ }
+
+ cfg = kzalloc(cfg_size, GFP_KERNEL);
+ if (!cfg)
+ return -ENOMEM;
+
+ cfg->base.cpc = t->cfg_base->cpc;
+ cfg->base.ibs = t->cfg_base->ibs;
+ cfg->base.obs = t->cfg_base->obs;
+ cfg->base.is_pages = t->cfg_base->is_pages;
+ cfg->base.audio_fmt = *t->in_fmt;
+ cfg->out_fmt = *t->cfg_ext->copier.out_fmt;
+ cfg->feature_mask = t->cfg_ext->copier.feature_mask;
+ cfg->gtw_cfg.node_id = node_id;
+ cfg->gtw_cfg.dma_buffer_size = t->cfg_ext->copier.dma_buffer_size;
+ if (data) {
+ /* config_length in DWORDs */
+ memcpy(&cfg->gtw_cfg.config, data, data_size);
+ cfg->gtw_cfg.config_length = DIV_ROUND_UP(data_size, 4);
+ }
+
+ mod->gtw_attrs = cfg->gtw_cfg.config.attrs;
+
+ ret = avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, cfg, cfg_size,
+ &mod->instance_id);
+ kfree(cfg);
+ return ret;
+}
+
+static int avs_updown_mix_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_updown_mixer_cfg cfg;
+ int i;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.out_channel_config = t->cfg_ext->updown_mix.out_channel_config;
+ cfg.coefficients_select = t->cfg_ext->updown_mix.coefficients_select;
+ for (i = 0; i < AVS_CHANNELS_MAX; i++)
+ cfg.coefficients[i] = t->cfg_ext->updown_mix.coefficients[i];
+ cfg.channel_map = t->cfg_ext->updown_mix.channel_map;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_src_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_src_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.out_freq = t->cfg_ext->src.out_freq;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_asrc_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_asrc_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.out_freq = t->cfg_ext->asrc.out_freq;
+ cfg.mode = t->cfg_ext->asrc.mode;
+ cfg.disable_jitter_buffer = t->cfg_ext->asrc.disable_jitter_buffer;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_aec_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_aec_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.ref_fmt = *t->cfg_ext->aec.ref_fmt;
+ cfg.out_fmt = *t->cfg_ext->aec.out_fmt;
+ cfg.cpc_lp_mode = t->cfg_ext->aec.cpc_lp_mode;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_mux_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_aec_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.ref_fmt = *t->cfg_ext->mux.ref_fmt;
+ cfg.out_fmt = *t->cfg_ext->mux.out_fmt;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_wov_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_wov_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.cpc_lp_mode = t->cfg_ext->wov.cpc_lp_mode;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_micsel_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_micsel_cfg cfg;
+
+ cfg.base.cpc = t->cfg_base->cpc;
+ cfg.base.ibs = t->cfg_base->ibs;
+ cfg.base.obs = t->cfg_base->obs;
+ cfg.base.is_pages = t->cfg_base->is_pages;
+ cfg.base.audio_fmt = *t->in_fmt;
+ cfg.out_fmt = *t->cfg_ext->micsel.out_fmt;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_modbase_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_modcfg_base cfg;
+
+ cfg.cpc = t->cfg_base->cpc;
+ cfg.ibs = t->cfg_base->ibs;
+ cfg.obs = t->cfg_base->obs;
+ cfg.is_pages = t->cfg_base->is_pages;
+ cfg.audio_fmt = *t->in_fmt;
+
+ return avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, &cfg, sizeof(cfg),
+ &mod->instance_id);
+}
+
+static int avs_modext_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ struct avs_tplg_module *t = mod->template;
+ struct avs_tplg_modcfg_ext *tcfg = t->cfg_ext;
+ struct avs_modcfg_ext *cfg;
+ size_t cfg_size, num_pins;
+ int ret, i;
+
+ num_pins = tcfg->generic.num_input_pins + tcfg->generic.num_output_pins;
+ cfg_size = sizeof(*cfg) + sizeof(*cfg->pin_fmts) * num_pins;
+
+ cfg = kzalloc(cfg_size, GFP_KERNEL);
+ if (!cfg)
+ return -ENOMEM;
+
+ cfg->base.cpc = t->cfg_base->cpc;
+ cfg->base.ibs = t->cfg_base->ibs;
+ cfg->base.obs = t->cfg_base->obs;
+ cfg->base.is_pages = t->cfg_base->is_pages;
+ cfg->base.audio_fmt = *t->in_fmt;
+ cfg->num_input_pins = tcfg->generic.num_input_pins;
+ cfg->num_output_pins = tcfg->generic.num_output_pins;
+
+ /* configure pin formats */
+ for (i = 0; i < num_pins; i++) {
+ struct avs_tplg_pin_format *tpin = &tcfg->generic.pin_fmts[i];
+ struct avs_pin_format *pin = &cfg->pin_fmts[i];
+
+ pin->pin_index = tpin->pin_index;
+ pin->iobs = tpin->iobs;
+ pin->audio_fmt = *tpin->fmt;
+ }
+
+ ret = avs_dsp_init_module(adev, mod->module_id, mod->owner->instance_id,
+ t->core_id, t->domain, cfg, cfg_size,
+ &mod->instance_id);
+ kfree(cfg);
+ return ret;
+}
+
+static int avs_path_module_type_create(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ const guid_t *type = &mod->template->cfg_ext->type;
+
+ if (guid_equal(type, &AVS_MIXIN_MOD_UUID) ||
+ guid_equal(type, &AVS_MIXOUT_MOD_UUID) ||
+ guid_equal(type, &AVS_KPBUFF_MOD_UUID))
+ return avs_modbase_create(adev, mod);
+ if (guid_equal(type, &AVS_COPIER_MOD_UUID))
+ return avs_copier_create(adev, mod);
+ if (guid_equal(type, &AVS_MICSEL_MOD_UUID))
+ return avs_micsel_create(adev, mod);
+ if (guid_equal(type, &AVS_MUX_MOD_UUID))
+ return avs_mux_create(adev, mod);
+ if (guid_equal(type, &AVS_UPDWMIX_MOD_UUID))
+ return avs_updown_mix_create(adev, mod);
+ if (guid_equal(type, &AVS_SRCINTC_MOD_UUID))
+ return avs_src_create(adev, mod);
+ if (guid_equal(type, &AVS_AEC_MOD_UUID))
+ return avs_aec_create(adev, mod);
+ if (guid_equal(type, &AVS_ASRC_MOD_UUID))
+ return avs_asrc_create(adev, mod);
+ if (guid_equal(type, &AVS_INTELWOV_MOD_UUID))
+ return avs_wov_create(adev, mod);
+
+ if (guid_equal(type, &AVS_PROBE_MOD_UUID)) {
+ dev_err(adev->dev, "Probe module can't be instantiated by topology");
+ return -EINVAL;
+ }
+
+ return avs_modext_create(adev, mod);
+}
+
+static void avs_path_module_free(struct avs_dev *adev, struct avs_path_module *mod)
+{
+ kfree(mod);
+}
+
+static struct avs_path_module *
+avs_path_module_create(struct avs_dev *adev,
+ struct avs_path_pipeline *owner,
+ struct avs_tplg_module *template)
+{
+ struct avs_path_module *mod;
+ int module_id, ret;
+
+ module_id = avs_get_module_id(adev, &template->cfg_ext->type);
+ if (module_id < 0)
+ return ERR_PTR(module_id);
+
+ mod = kzalloc(sizeof(*mod), GFP_KERNEL);
+ if (!mod)
+ return ERR_PTR(-ENOMEM);
+
+ mod->template = template;
+ mod->module_id = module_id;
+ mod->owner = owner;
+ INIT_LIST_HEAD(&mod->node);
+
+ ret = avs_path_module_type_create(adev, mod);
+ if (ret) {
+ dev_err(adev->dev, "module-type create failed: %d\n", ret);
+ kfree(mod);
+ return ERR_PTR(ret);
+ }
+
+ return mod;
+}
+
+static void avs_path_binding_free(struct avs_dev *adev, struct avs_path_binding *binding)
+{
+ kfree(binding);
+}
+
+static struct avs_path_binding *avs_path_binding_create(struct avs_dev *adev,
+ struct avs_path_pipeline *owner,
+ struct avs_tplg_binding *t)
+{
+ struct avs_path_binding *binding;
+
+ binding = kzalloc(sizeof(*binding), GFP_KERNEL);
+ if (!binding)
+ return ERR_PTR(-ENOMEM);
+
+ binding->template = t;
+ binding->owner = owner;
+ INIT_LIST_HEAD(&binding->node);
+
+ return binding;
+}
+
+static int avs_path_binding_arm(struct avs_dev *adev, struct avs_path_binding *binding)
+{
+ struct avs_path_module *this_mod, *target_mod;
+ struct avs_path_pipeline *target_ppl;
+ struct avs_path *target_path;
+ struct avs_tplg_binding *t;
+
+ t = binding->template;
+ this_mod = avs_path_find_module(binding->owner,
+ t->mod_id);
+ if (!this_mod) {
+ dev_err(adev->dev, "path mod %d not found\n", t->mod_id);
+ return -EINVAL;
+ }
+
+ /* update with target_tplg_name too */
+ target_path = avs_path_find_path(adev, t->target_tplg_name,
+ t->target_path_tmpl_id);
+ if (!target_path) {
+ dev_err(adev->dev, "target path %s:%d not found\n",
+ t->target_tplg_name, t->target_path_tmpl_id);
+ return -EINVAL;
+ }
+
+ target_ppl = avs_path_find_pipeline(target_path,
+ t->target_ppl_id);
+ if (!target_ppl) {
+ dev_err(adev->dev, "target ppl %d not found\n", t->target_ppl_id);
+ return -EINVAL;
+ }
+
+ target_mod = avs_path_find_module(target_ppl, t->target_mod_id);
+ if (!target_mod) {
+ dev_err(adev->dev, "target mod %d not found\n", t->target_mod_id);
+ return -EINVAL;
+ }
+
+ if (t->is_sink) {
+ binding->sink = this_mod;
+ binding->sink_pin = t->mod_pin;
+ binding->source = target_mod;
+ binding->source_pin = t->target_mod_pin;
+ } else {
+ binding->sink = target_mod;
+ binding->sink_pin = t->target_mod_pin;
+ binding->source = this_mod;
+ binding->source_pin = t->mod_pin;
+ }
+
+ return 0;
+}
+
+static void avs_path_pipeline_free(struct avs_dev *adev,
+ struct avs_path_pipeline *ppl)
+{
+ struct avs_path_binding *binding, *bsave;
+ struct avs_path_module *mod, *save;
+
+ list_for_each_entry_safe(binding, bsave, &ppl->binding_list, node) {
+ list_del(&binding->node);
+ avs_path_binding_free(adev, binding);
+ }
+
+ avs_dsp_delete_pipeline(adev, ppl->instance_id);
+
+ /* Unload resources occupied by owned modules */
+ list_for_each_entry_safe(mod, save, &ppl->mod_list, node) {
+ avs_dsp_delete_module(adev, mod->module_id, mod->instance_id,
+ mod->owner->instance_id,
+ mod->template->core_id);
+ avs_path_module_free(adev, mod);
+ }
+
+ list_del(&ppl->node);
+ kfree(ppl);
+}
+
+static int avs_path_pipeline_arm(struct avs_dev *adev,
+ struct avs_path_pipeline *ppl)
+{
+ struct avs_path_module *mod;
+
+ list_for_each_entry(mod, &ppl->mod_list, node) {
+ struct avs_path_module *source, *sink;
+ int ret;
+
+ /*
+ * Only one module (so it's implicitly last) or it is the last
+ * one, either way we don't have next module to bind it to.
+ */
+ if (mod == list_last_entry(&ppl->mod_list,
+ struct avs_path_module, node))
+ break;
+
+ /* bind current module to next module on list */
+ source = mod;
+ sink = list_next_entry(mod, node);
+ if (!source || !sink)
+ return -EINVAL;
+
+ ret = avs_ipc_bind(adev, source->module_id, source->instance_id,
+ sink->module_id, sink->instance_id, 0, 0);
+ if (ret)
+ return AVS_IPC_RET(ret);
+ }
+
+ return 0;
+}
+
+static struct avs_path_pipeline *
+avs_path_pipeline_create(struct avs_dev *adev,
+ struct avs_path *owner,
+ struct avs_tplg_pipeline *template)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_tplg_pplcfg *cfg = template->cfg;
+ struct avs_tplg_module *tmod;
+ int ret, i;
+
+ ppl = kzalloc(sizeof(*ppl), GFP_KERNEL);
+ if (!ppl)
+ return ERR_PTR(-ENOMEM);
+
+ ppl->template = template;
+ ppl->owner = owner;
+ INIT_LIST_HEAD(&ppl->binding_list);
+ INIT_LIST_HEAD(&ppl->mod_list);
+ INIT_LIST_HEAD(&ppl->node);
+
+ ret = avs_dsp_create_pipeline(adev, cfg->req_size, cfg->priority,
+ cfg->lp, cfg->attributes,
+ &ppl->instance_id);
+ if (ret) {
+ dev_err(adev->dev, "error creating pipeline %d\n", ret);
+ kfree(ppl);
+ return ERR_PTR(ret);
+ }
+
+ list_for_each_entry(tmod, &template->mod_list, node) {
+ struct avs_path_module *mod;
+
+ mod = avs_path_module_create(adev, ppl, tmod);
+ if (IS_ERR(mod)) {
+ ret = PTR_ERR(mod);
+ dev_err(adev->dev, "error creating module %d\n", ret);
+ goto init_err;
+ }
+
+ list_add_tail(&mod->node, &ppl->mod_list);
+ }
+
+ for (i = 0; i < template->num_bindings; i++) {
+ struct avs_path_binding *binding;
+
+ binding = avs_path_binding_create(adev, ppl, template->bindings[i]);
+ if (IS_ERR(binding)) {
+ ret = PTR_ERR(binding);
+ dev_err(adev->dev, "error creating binding %d\n", ret);
+ goto init_err;
+ }
+
+ list_add_tail(&binding->node, &ppl->binding_list);
+ }
+
+ return ppl;
+
+init_err:
+ avs_path_pipeline_free(adev, ppl);
+ return ERR_PTR(ret);
+}
+
+static int avs_path_init(struct avs_dev *adev, struct avs_path *path,
+ struct avs_tplg_path *template, u32 dma_id)
+{
+ struct avs_tplg_pipeline *tppl;
+
+ path->owner = adev;
+ path->template = template;
+ path->dma_id = dma_id;
+ INIT_LIST_HEAD(&path->ppl_list);
+ INIT_LIST_HEAD(&path->node);
+
+ /* create all the pipelines */
+ list_for_each_entry(tppl, &template->ppl_list, node) {
+ struct avs_path_pipeline *ppl;
+
+ ppl = avs_path_pipeline_create(adev, path, tppl);
+ if (IS_ERR(ppl))
+ return PTR_ERR(ppl);
+
+ list_add_tail(&ppl->node, &path->ppl_list);
+ }
+
+ spin_lock(&adev->path_list_lock);
+ list_add_tail(&path->node, &adev->path_list);
+ spin_unlock(&adev->path_list_lock);
+
+ return 0;
+}
+
+static int avs_path_arm(struct avs_dev *adev, struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_path_binding *binding;
+ int ret;
+
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ /*
+ * Arm all ppl bindings before binding internal modules
+ * as it costs no IPCs which isn't true for the latter.
+ */
+ list_for_each_entry(binding, &ppl->binding_list, node) {
+ ret = avs_path_binding_arm(adev, binding);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = avs_path_pipeline_arm(adev, ppl);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static void avs_path_free_unlocked(struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl, *save;
+
+ spin_lock(&path->owner->path_list_lock);
+ list_del(&path->node);
+ spin_unlock(&path->owner->path_list_lock);
+
+ list_for_each_entry_safe(ppl, save, &path->ppl_list, node)
+ avs_path_pipeline_free(path->owner, ppl);
+
+ kfree(path);
+}
+
+static struct avs_path *avs_path_create_unlocked(struct avs_dev *adev, u32 dma_id,
+ struct avs_tplg_path *template)
+{
+ struct avs_soc_component *acomp;
+ struct avs_path *path;
+ int ret;
+
+ acomp = to_avs_soc_component(template->owner->owner->comp);
+
+ path = kzalloc(sizeof(*path), GFP_KERNEL);
+ if (!path)
+ return ERR_PTR(-ENOMEM);
+
+ ret = avs_path_init(adev, path, template, dma_id);
+ if (ret < 0)
+ goto err;
+
+ ret = avs_path_arm(adev, path);
+ if (ret < 0)
+ goto err;
+
+ path->state = AVS_PPL_STATE_INVALID;
+ return path;
+err:
+ avs_path_free_unlocked(path);
+ return ERR_PTR(ret);
+}
+
+struct avs_path *avs_path_create(struct avs_dev *adev, u32 dma_id,
+ struct avs_tplg_path_template *template,
+ struct snd_pcm_hw_params *fe_params,
+ struct snd_pcm_hw_params *be_params)
+{
+ struct avs_tplg_path *variant;
+ struct avs_path *path;
+
+ variant = avs_path_find_variant(adev, template, fe_params, be_params);
+ if (!variant) {
+ dev_err(adev->dev, "no matching variant found\n");
+ return ERR_PTR(-ENOENT);
+ }
+
+ /* Serialize path and its components creation. */
+ mutex_lock(&adev->path_mutex);
+ /* Satisfy needs of avs_path_find_tplg(). */
+ mutex_lock(&adev->comp_list_mutex);
+
+ path = avs_path_create_unlocked(adev, dma_id, variant);
+
+ mutex_unlock(&adev->comp_list_mutex);
+ mutex_unlock(&adev->path_mutex);
+
+ return path;
+}
+
+void avs_path_free(struct avs_path *path)
+{
+ struct avs_dev *adev = path->owner;
+
+ mutex_lock(&adev->path_mutex);
+ avs_path_free_unlocked(path);
+ mutex_unlock(&adev->path_mutex);
+}
+
+static int avs_path_bind_prepare(struct avs_dev *adev,
+ struct avs_path_binding *binding)
+{
+ const struct avs_audio_format *src_fmt, *sink_fmt;
+ struct avs_tplg_module *tsource = binding->source->template;
+ struct avs_path_module *source = binding->source;
+ int ret;
+
+ /*
+ * only copier modules about to be bound
+ * to output pin other than 0 need preparation
+ */
+ if (!binding->source_pin)
+ return 0;
+ if (!guid_equal(&tsource->cfg_ext->type, &AVS_COPIER_MOD_UUID))
+ return 0;
+
+ src_fmt = tsource->in_fmt;
+ sink_fmt = binding->sink->template->in_fmt;
+
+ ret = avs_ipc_copier_set_sink_format(adev, source->module_id,
+ source->instance_id, binding->source_pin,
+ src_fmt, sink_fmt);
+ if (ret) {
+ dev_err(adev->dev, "config copier failed: %d\n", ret);
+ return AVS_IPC_RET(ret);
+ }
+
+ return 0;
+}
+
+int avs_path_bind(struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_dev *adev = path->owner;
+ int ret;
+
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ struct avs_path_binding *binding;
+
+ list_for_each_entry(binding, &ppl->binding_list, node) {
+ struct avs_path_module *source, *sink;
+
+ source = binding->source;
+ sink = binding->sink;
+
+ ret = avs_path_bind_prepare(adev, binding);
+ if (ret < 0)
+ return ret;
+
+ ret = avs_ipc_bind(adev, source->module_id,
+ source->instance_id, sink->module_id,
+ sink->instance_id, binding->sink_pin,
+ binding->source_pin);
+ if (ret) {
+ dev_err(adev->dev, "bind path failed: %d\n", ret);
+ return AVS_IPC_RET(ret);
+ }
+ }
+ }
+
+ return 0;
+}
+
+int avs_path_unbind(struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_dev *adev = path->owner;
+ int ret;
+
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ struct avs_path_binding *binding;
+
+ list_for_each_entry(binding, &ppl->binding_list, node) {
+ struct avs_path_module *source, *sink;
+
+ source = binding->source;
+ sink = binding->sink;
+
+ ret = avs_ipc_unbind(adev, source->module_id,
+ source->instance_id, sink->module_id,
+ sink->instance_id, binding->sink_pin,
+ binding->source_pin);
+ if (ret) {
+ dev_err(adev->dev, "unbind path failed: %d\n", ret);
+ return AVS_IPC_RET(ret);
+ }
+ }
+ }
+
+ return 0;
+}
+
+int avs_path_reset(struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_dev *adev = path->owner;
+ int ret;
+
+ if (path->state == AVS_PPL_STATE_RESET)
+ return 0;
+
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ ret = avs_ipc_set_pipeline_state(adev, ppl->instance_id,
+ AVS_PPL_STATE_RESET);
+ if (ret) {
+ dev_err(adev->dev, "reset path failed: %d\n", ret);
+ path->state = AVS_PPL_STATE_INVALID;
+ return AVS_IPC_RET(ret);
+ }
+ }
+
+ path->state = AVS_PPL_STATE_RESET;
+ return 0;
+}
+
+int avs_path_pause(struct avs_path *path)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_dev *adev = path->owner;
+ int ret;
+
+ if (path->state == AVS_PPL_STATE_PAUSED)
+ return 0;
+
+ list_for_each_entry_reverse(ppl, &path->ppl_list, node) {
+ ret = avs_ipc_set_pipeline_state(adev, ppl->instance_id,
+ AVS_PPL_STATE_PAUSED);
+ if (ret) {
+ dev_err(adev->dev, "pause path failed: %d\n", ret);
+ path->state = AVS_PPL_STATE_INVALID;
+ return AVS_IPC_RET(ret);
+ }
+ }
+
+ path->state = AVS_PPL_STATE_PAUSED;
+ return 0;
+}
+
+int avs_path_run(struct avs_path *path, int trigger)
+{
+ struct avs_path_pipeline *ppl;
+ struct avs_dev *adev = path->owner;
+ int ret;
+
+ if (path->state == AVS_PPL_STATE_RUNNING && trigger == AVS_TPLG_TRIGGER_AUTO)
+ return 0;
+
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ if (ppl->template->cfg->trigger != trigger)
+ continue;
+
+ ret = avs_ipc_set_pipeline_state(adev, ppl->instance_id,
+ AVS_PPL_STATE_RUNNING);
+ if (ret) {
+ dev_err(adev->dev, "run path failed: %d\n", ret);
+ path->state = AVS_PPL_STATE_INVALID;
+ return AVS_IPC_RET(ret);
+ }
+ }
+
+ path->state = AVS_PPL_STATE_RUNNING;
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright(c) 2021 Intel Corporation. All rights reserved.
+ *
+ * Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+ * Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+ */
+
+#ifndef __SOUND_SOC_INTEL_AVS_PATH_H
+#define __SOUND_SOC_INTEL_AVS_PATH_H
+
+#include <linux/list.h>
+#include "avs.h"
+#include "topology.h"
+
+struct avs_path {
+ u32 dma_id;
+ struct list_head ppl_list;
+ u32 state;
+
+ struct avs_tplg_path *template;
+ struct avs_dev *owner;
+ /* device path management */
+ struct list_head node;
+};
+
+struct avs_path_pipeline {
+ u8 instance_id;
+ struct list_head mod_list;
+ struct list_head binding_list;
+
+ struct avs_tplg_pipeline *template;
+ struct avs_path *owner;
+ /* path pipelines management */
+ struct list_head node;
+};
+
+struct avs_path_module {
+ u16 module_id;
+ u16 instance_id;
+ union avs_gtw_attributes gtw_attrs;
+
+ struct avs_tplg_module *template;
+ struct avs_path_pipeline *owner;
+ /* pipeline modules management */
+ struct list_head node;
+};
+
+struct avs_path_binding {
+ struct avs_path_module *source;
+ u8 source_pin;
+ struct avs_path_module *sink;
+ u8 sink_pin;
+
+ struct avs_tplg_binding *template;
+ struct avs_path_pipeline *owner;
+ /* pipeline bindings management */
+ struct list_head node;
+};
+
+struct avs_path *avs_path_create(struct avs_dev *adev, u32 dma_id,
+ struct avs_tplg_path_template *template,
+ struct snd_pcm_hw_params *fe_params,
+ struct snd_pcm_hw_params *be_params);
+void avs_path_free(struct avs_path *path);
+int avs_path_bind(struct avs_path *path);
+int avs_path_unbind(struct avs_path *path);
+int avs_path_reset(struct avs_path *path);
+int avs_path_pause(struct avs_path *path);
+int avs_path_run(struct avs_path *path, int trigger);
+
+#endif