path: root/sound/soc/sof/sof-audio.h

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/*
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * Copyright(c) 2019 Intel Corporation
 *
 * Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
 */

#ifndef __SOUND_SOC_SOF_AUDIO_H
#define __SOUND_SOC_SOF_AUDIO_H

#include <linux/workqueue.h>

#include <sound/soc.h>
#include <sound/control.h>
#include <sound/sof/stream.h> /* needs to be included before control.h */
#include <sound/sof/control.h>
#include <sound/sof/dai.h>
#include <sound/sof/topology.h>
#include "sof-priv.h"

#define SOF_AUDIO_PCM_DRV_NAME	"sof-audio-component"

/*
 * The ipc4 firmware only supports up to 8 sink or source pins
 * per widget, because only 3 bits are used for queue(pin) ID
 * in ipc4 protocol.
 */
#define SOF_WIDGET_MAX_NUM_PINS	8

/* Widget pin type */
#define SOF_PIN_TYPE_INPUT	0
#define SOF_PIN_TYPE_OUTPUT	1

/* max number of FE PCMs before BEs */
#define SOF_BE_PCM_BASE		16

#define DMA_CHAN_INVALID	0xFFFFFFFF

#define WIDGET_IS_DAI(id) ((id) == snd_soc_dapm_dai_in || (id) == snd_soc_dapm_dai_out)
#define WIDGET_IS_AIF(id) ((id) == snd_soc_dapm_aif_in || (id) == snd_soc_dapm_aif_out)
#define WIDGET_IS_AIF_OR_DAI(id) (WIDGET_IS_DAI(id) || WIDGET_IS_AIF(id))
#define WIDGET_IS_COPIER(id) (WIDGET_IS_AIF_OR_DAI(id) || (id) == snd_soc_dapm_buffer)

#define SOF_DAI_PARAM_INTEL_SSP_MCLK		0
#define SOF_DAI_PARAM_INTEL_SSP_BCLK		1
#define SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS	2

enum sof_widget_op {
	SOF_WIDGET_PREPARE,
	SOF_WIDGET_SETUP,
	SOF_WIDGET_FREE,
	SOF_WIDGET_UNPREPARE,
};

/*
 * Volume fractional word length define to 16 sets
 * the volume linear gain value to use Qx.16 format
 */
#define VOLUME_FWL	16

#define SOF_TLV_ITEMS 3

static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
{
	if (value >= size)
		return volume_map[size - 1];

	return volume_map[value];
}

static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
{
	int i;

	for (i = 0; i < size; i++) {
		if (volume_map[i] >= value)
			return i;
	}

	return i - 1;
}

struct snd_sof_widget;
struct snd_sof_route;
struct snd_sof_control;
struct snd_sof_dai;
struct snd_sof_pcm;

struct snd_sof_dai_config_data {
	int dai_index;
	int dai_data; /* contains DAI-specific information */
	int dai_node_id; /* contains DAI-specific information for Gateway configuration */
};

/**
 * struct sof_ipc_pcm_ops - IPC-specific PCM ops
 * @hw_params: Function pointer for hw_params
 * @hw_free: Function pointer for hw_free
 * @trigger: Function pointer for trigger
 * @dai_link_fixup: Function pointer for DAI link fixup
 * @pcm_setup: Function pointer for IPC-specific PCM set up that can be used for allocating
 *	       additional memory in the SOF PCM stream structure
 * @pcm_free: Function pointer for PCM free that can be used for freeing any
 *	       additional memory in the SOF PCM stream structure
 * @pointer: Function pointer for pcm pointer
 *	     Note: the @pointer callback may return -EOPNOTSUPP which should be
 *		   handled in a same way as if the callback is not provided
 * @delay: Function pointer for pcm delay reporting
 * @reset_hw_params_during_stop: Flag indicating whether the hw_params should be reset during the
 *				 STOP pcm trigger
 * @ipc_first_on_start: Send IPC before invoking platform trigger during
 *				START/PAUSE_RELEASE triggers
 * @platform_stop_during_hw_free: Invoke the platform trigger during hw_free. This is needed for
 *				  IPC4 where a pipeline is only paused during stop/pause/suspend
 *				  triggers. The FW keeps the host DMA running in this case and
 *				  therefore the host must do the same and should stop the DMA during
 *				  hw_free.
 * @d0i3_supported_in_s0ix: Allow DSP D0I3 during S0iX
 */
struct sof_ipc_pcm_ops {
	int (*hw_params)(struct snd_soc_component *component, struct snd_pcm_substream *substream,
			 struct snd_pcm_hw_params *params,
			 struct snd_sof_platform_stream_params *platform_params);
	int (*hw_free)(struct snd_soc_component *component, struct snd_pcm_substream *substream);
	int (*trigger)(struct snd_soc_component *component,  struct snd_pcm_substream *substream,
		       int cmd);
	int (*dai_link_fixup)(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params);
	int (*pcm_setup)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
	void (*pcm_free)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
	int (*pointer)(struct snd_soc_component *component,
		       struct snd_pcm_substream *substream,
		       snd_pcm_uframes_t *pointer);
	snd_pcm_sframes_t (*delay)(struct snd_soc_component *component,
				   struct snd_pcm_substream *substream);
	bool reset_hw_params_during_stop;
	bool ipc_first_on_start;
	bool platform_stop_during_hw_free;
	bool d0i3_supported_in_s0ix;
};

/**
 * struct sof_ipc_tplg_control_ops - IPC-specific ops for topology kcontrol IO
 */
struct sof_ipc_tplg_control_ops {
	bool (*volume_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*volume_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	bool (*switch_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*switch_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	bool (*enum_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*enum_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*bytes_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*bytes_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
	int (*bytes_ext_get)(struct snd_sof_control *scontrol,
			     const unsigned int __user *binary_data, unsigned int size);
	int (*bytes_ext_volatile_get)(struct snd_sof_control *scontrol,
				      const unsigned int __user *binary_data, unsigned int size);
	int (*bytes_ext_put)(struct snd_sof_control *scontrol,
			     const unsigned int __user *binary_data, unsigned int size);
	/* update control data based on notification from the DSP */
	void (*update)(struct snd_sof_dev *sdev, void *ipc_control_message);
	/* Optional callback to setup kcontrols associated with an swidget */
	int (*widget_kcontrol_setup)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
	/* mandatory callback to set up volume table for volume kcontrols */
	int (*set_up_volume_table)(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS],
				   int size);
};

/**
 * struct sof_ipc_tplg_widget_ops - IPC-specific ops for topology widgets
 * @ipc_setup: Function pointer for setting up widget IPC params
 * @ipc_free: Function pointer for freeing widget IPC params
 * @token_list: List of token ID's that should be parsed for the widget
 * @token_list_size: number of elements in token_list
 * @bind_event: Function pointer for binding events to the widget
 * @ipc_prepare: Optional op for preparing a widget for set up
 * @ipc_unprepare: Optional op for unpreparing a widget
 */
struct sof_ipc_tplg_widget_ops {
	int (*ipc_setup)(struct snd_sof_widget *swidget);
	void (*ipc_free)(struct snd_sof_widget *swidget);
	enum sof_tokens *token_list;
	int token_list_size;
	int (*bind_event)(struct snd_soc_component *scomp, struct snd_sof_widget *swidget,
			  u16 event_type);
	int (*ipc_prepare)(struct snd_sof_widget *swidget,
			   struct snd_pcm_hw_params *fe_params,
			   struct snd_sof_platform_stream_params *platform_params,
			   struct snd_pcm_hw_params *source_params, int dir);
	void (*ipc_unprepare)(struct snd_sof_widget *swidget);
};

/**
 * struct sof_ipc_tplg_ops - IPC-specific topology ops
 * @widget: Array of pointers to IPC-specific ops for widgets. This should always be of size
 *	    SND_SOF_DAPM_TYPE_COUNT i.e one per widget type. Unsupported widget types will be
 *	    initialized to 0.
 * @control: Pointer to the IPC-specific ops for topology kcontrol IO
 * @route_setup: Function pointer for setting up pipeline connections
 * @route_free: Function pointer for freeing pipeline connections.
 * @token_list: List of all tokens supported by the IPC version. The size of the token_list
 *		array should be SOF_TOKEN_COUNT. The unused elements in the array will be
 *		initialized to 0.
 * @control_setup: Function pointer for setting up kcontrol IPC-specific data
 * @control_free: Function pointer for freeing kcontrol IPC-specific data
 * @pipeline_complete: Function pointer for pipeline complete IPC
 * @widget_setup: Function pointer for setting up setup in the DSP
 * @widget_free: Function pointer for freeing widget in the DSP
 * @dai_config: Function pointer for sending DAI config IPC to the DSP
 * @dai_get_param: Function pointer for getting the DAI parameter
 * @set_up_all_pipelines: Function pointer for setting up all topology pipelines
 * @tear_down_all_pipelines: Function pointer for tearing down all topology pipelines
 * @parse_manifest: Function pointer for ipc4 specific parsing of topology manifest
 * @link_setup: Function pointer for IPC-specific DAI link set up
 *
 * Note: function pointers (ops) are optional
 */
struct sof_ipc_tplg_ops {
	const struct sof_ipc_tplg_widget_ops *widget;
	const struct sof_ipc_tplg_control_ops *control;
	int (*route_setup)(struct snd_sof_dev *sdev, struct snd_sof_route *sroute);
	int (*route_free)(struct snd_sof_dev *sdev, struct snd_sof_route *sroute);
	const struct sof_token_info *token_list;
	int (*control_setup)(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol);
	int (*control_free)(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol);
	int (*pipeline_complete)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
	int (*widget_setup)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
	int (*widget_free)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
	int (*dai_config)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
			  unsigned int flags, struct snd_sof_dai_config_data *data);
	int (*dai_get_param)(struct snd_sof_dev *sdev, struct snd_sof_dai *dai, int param_type);
	int (*set_up_all_pipelines)(struct snd_sof_dev *sdev, bool verify);
	int (*tear_down_all_pipelines)(struct snd_sof_dev *sdev, bool verify);
	int (*parse_manifest)(struct snd_soc_component *scomp, int index,
			      struct snd_soc_tplg_manifest *man);
	int (*link_setup)(struct snd_sof_dev *sdev, struct snd_soc_dai_link *link);
};

/** struct snd_sof_tuple - Tuple info
 * @token:	Token ID
 * @value:	union of a string or a u32 values
 */
struct snd_sof_tuple {
	u32 token;
	union {
		u32 v;
		const char *s;
	} value;
};

/*
 * List of SOF token ID's. The order of ID's does not matter as token arrays are looked up based on
 * the ID.
 */
enum sof_tokens {
	SOF_PCM_TOKENS,
	SOF_PIPELINE_TOKENS,
	SOF_SCHED_TOKENS,
	SOF_ASRC_TOKENS,
	SOF_SRC_TOKENS,
	SOF_COMP_TOKENS,
	SOF_BUFFER_TOKENS,
	SOF_VOLUME_TOKENS,
	SOF_PROCESS_TOKENS,
	SOF_DAI_TOKENS,
	SOF_DAI_LINK_TOKENS,<