Add functions to ease with state changing of all objects found in the
path. Each represents either a BIND/UNBIND or SET_PIPELINE_STATE IPC.
DSP pipelines follow simple state machine scheme:
CREATE -> RESET -> PAUSE -> RUNNING -> PAUSE -> RESET -> DELETE
There is no STOP, PAUSE serves that purpose instead.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
---
sound/soc/intel/avs/path.c | 130 +++++++++++++++++++++++++++++++++++++
sound/soc/intel/avs/path.h | 5 ++
2 files changed, 135 insertions(+)
diff --git a/sound/soc/intel/avs/path.c b/sound/soc/intel/avs/path.c
index 89b38294cde3..7febd5118a5d 100644
--- a/sound/soc/intel/avs/path.c
+++ b/sound/soc/intel/avs/path.c
@@ -282,3 +282,133 @@ struct avs_path *avs_path_create(struct avs_dev *adev, u32 dma_id,
return path;
}
+
+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_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;
+}
diff --git a/sound/soc/intel/avs/path.h b/sound/soc/intel/avs/path.h
index 3843e5a062a1..04a06473f04b 100644
--- a/sound/soc/intel/avs/path.h
+++ b/sound/soc/intel/avs/path.h
@@ -62,5 +62,10 @@ 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);
+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
--
2.25.1
