On Fri, 2022-03-04 at 15:57 +0100, Cezary Rojewski wrote:
> Pipeline represents a scheduling entity. Their existence as well as
> their state machine is controlled through CREATE_PIPELINE,
> DELETE_PIPELINE and SET_PIPELINE_STATE IPCs.
>
> Signed-off-by: Amadeusz Sławiński <
> amadeuszx.slawinski@xxxxxxxxxxxxxxx>
> Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
> ---
> sound/soc/intel/avs/messages.c | 76
> ++++++++++++++++++++++++++++++++++
> sound/soc/intel/avs/messages.h | 48 +++++++++++++++++++++
> 2 files changed, 124 insertions(+)
>
> diff --git a/sound/soc/intel/avs/messages.c
> b/sound/soc/intel/avs/messages.c
> index d568338b0737..de2d50f8c6b4 100644
> --- a/sound/soc/intel/avs/messages.c
> +++ b/sound/soc/intel/avs/messages.c
> @@ -63,3 +63,79 @@ int avs_ipc_load_library(struct avs_dev *adev, u32
> dma_id, u32 lib_id)
>
> return ret;
> }
> +
> +int avs_ipc_create_pipeline(struct avs_dev *adev, u16 req_size, u8
> priority,
> + u8 instance_id, bool lp, u16 attributes)
> +{
> + union avs_global_msg msg = AVS_GLOBAL_REQUEST(CREATE_PIPELINE);
> + struct avs_ipc_msg request = {{0}};
> + int ret;
> +
> + msg.create_ppl.ppl_mem_size = req_size;
> + msg.create_ppl.ppl_priority = priority;
> + msg.create_ppl.instance_id = instance_id;
> + msg.ext.create_ppl.lp = lp;
> + msg.ext.create_ppl.attributes = attributes;
> + request.header = msg.val;
> +
> + ret = avs_dsp_send_msg(adev, &request, NULL);
> + if (ret)
> + avs_ipc_err(adev, &request, "create pipeline", ret);
> +
> + return ret;
> +}
> +
> +int avs_ipc_delete_pipeline(struct avs_dev *adev, u8 instance_id)
> +{
> + union avs_global_msg msg = AVS_GLOBAL_REQUEST(DELETE_PIPELINE);
> + struct avs_ipc_msg request = {{0}};
> + int ret;
> +
> + msg.ppl.instance_id = instance_id;
> + request.header = msg.val;
> +
> + ret = avs_dsp_send_msg(adev, &request, NULL);
> + if (ret)
> + avs_ipc_err(adev, &request, "delete pipeline", ret);
> +
> + return ret;
> +}
> +
> +int avs_ipc_set_pipeline_state(struct avs_dev *adev, u8 instance_id,
> + enum avs_pipeline_state state)
> +{
> + union avs_global_msg msg =
> AVS_GLOBAL_REQUEST(SET_PIPELINE_STATE);
> + struct avs_ipc_msg request = {{0}};
> + int ret;
> +
> + msg.set_ppl_state.ppl_id = instance_id;
> + msg.set_ppl_state.state = state;
> + request.header = msg.val;
> +
> + ret = avs_dsp_send_msg(adev, &request, NULL);
> + if (ret)
> + avs_ipc_err(adev, &request, "set pipeline state", ret);
> +
> + return ret;
> +}
> +
> +int avs_ipc_get_pipeline_state(struct avs_dev *adev, u8 instance_id,
> + enum avs_pipeline_state *state)
Can the pipeline state in the firmware change without the driver's
knowledge? When should the driver use this get_pipeline_state()?
Thanks,Ranjani
