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: control.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) 2018 Intel Corporation. All rights reserved.
 */

#ifndef __INCLUDE_SOUND_SOF_CONTROL_H__
#define __INCLUDE_SOUND_SOF_CONTROL_H__

#include <uapi/sound/sof/header.h>
#include <sound/sof/header.h>

/*
 * Component Mixers and Controls
 */

/* channel positions - uses same values as ALSA */
enum sof_ipc_chmap {
	SOF_CHMAP_UNKNOWN = 0,
	SOF_CHMAP_NA,		/**< N/A, silent */
	SOF_CHMAP_MONO,		/**< mono stream */
	SOF_CHMAP_FL,		/**< front left */
	SOF_CHMAP_FR,		/**< front right */
	SOF_CHMAP_RL,		/**< rear left */
	SOF_CHMAP_RR,		/**< rear right */
	SOF_CHMAP_FC,		/**< front centre */
	SOF_CHMAP_LFE,		/**< LFE */
	SOF_CHMAP_SL,		/**< side left */
	SOF_CHMAP_SR,		/**< side right */
	SOF_CHMAP_RC,		/**< rear centre */
	SOF_CHMAP_FLC,		/**< front left centre */
	SOF_CHMAP_FRC,		/**< front right centre */
	SOF_CHMAP_RLC,		/**< rear left centre */
	SOF_CHMAP_RRC,		/**< rear right centre */
	SOF_CHMAP_FLW,		/**< front left wide */
	SOF_CHMAP_FRW,		/**< front right wide */
	SOF_CHMAP_FLH,		/**< front left high */
	SOF_CHMAP_FCH,		/**< front centre high */
	SOF_CHMAP_FRH,		/**< front right high */
	SOF_CHMAP_TC,		/**< top centre */
	SOF_CHMAP_TFL,		/**< top front left */
	SOF_CHMAP_TFR,		/**< top front right */
	SOF_CHMAP_TFC,		/**< top front centre */
	SOF_CHMAP_TRL,		/**< top rear left */
	SOF_CHMAP_TRR,		/**< top rear right */
	SOF_CHMAP_TRC,		/**< top rear centre */
	SOF_CHMAP_TFLC,		/**< top front left centre */
	SOF_CHMAP_TFRC,		/**< top front right centre */
	SOF_CHMAP_TSL,		/**< top side left */
	SOF_CHMAP_TSR,		/**< top side right */
	SOF_CHMAP_LLFE,		/**< left LFE */
	SOF_CHMAP_RLFE,		/**< right LFE */
	SOF_CHMAP_BC,		/**< bottom centre */
	SOF_CHMAP_BLC,		/**< bottom left centre */
	SOF_CHMAP_BRC,		/**< bottom right centre */
	SOF_CHMAP_LAST = SOF_CHMAP_BRC,
};

/* control data type and direction */
enum sof_ipc_ctrl_type {
	/*  per channel data - uses struct sof_ipc_ctrl_value_chan */
	SOF_CTRL_TYPE_VALUE_CHAN_GET = 0,
	SOF_CTRL_TYPE_VALUE_CHAN_SET,
	/* component data - uses struct sof_ipc_ctrl_value_comp */
	SOF_CTRL_TYPE_VALUE_COMP_GET,
	SOF_CTRL_TYPE_VALUE_COMP_SET,
	/* bespoke data - uses struct sof_abi_hdr */
	SOF_CTRL_TYPE_DATA_GET,
	SOF_CTRL_TYPE_DATA_SET,
};

/* control command type */
enum sof_ipc_ctrl_cmd {
	SOF_CTRL_CMD_VOLUME = 0, /**< maps to ALSA volume style controls */
	SOF_CTRL_CMD_ENUM,	/**< maps to ALSA enum style controls */
	SOF_CTRL_CMD_SWITCH,	/**< maps to ALSA switch style controls */
	SOF_CTRL_CMD_BINARY,	/**< maps to ALSA binary style controls */
};

/* generic channel mapped value data */
struct sof_ipc_ctrl_value_chan {
	uint32_t channel;	/**< channel map - enum sof_ipc_chmap */
	uint32_t value;
} __packed;

/* generic component mapped value data */
struct sof_ipc_ctrl_value_comp {
	uint32_t index;	/**< component source/sink/control index in control */
	union {
		uint32_t uvalue;
		int32_t svalue;
	};
} __packed;

/* generic control data */
struct sof_ipc_ctrl_data {
	struct sof_ipc_reply rhdr;
	uint32_t comp_id;

/* control access and data type */
	uint32_t type;		/**< enum sof_ipc_ctrl_type */
	uint32_t cmd;		/**< enum sof_ipc_ctrl_cmd */
	uint32_t index;		/**< control index for comps > 1 control */

/* control data - can either be appended or DMAed from host */
	struct sof_ipc_host_buffer buffer;
	uint32_t num_elems;	/**< in array elems or bytes for data type */
	uint32_t elems_remaining;	/**< elems remaining if sent in parts */

uint32_t msg_index;	/**< for large messages sent in parts */

/* reserved for future use */
	uint32_t reserved[6];

/* control data - add new types if needed */
	union {
		/* channel values can be used by volume type controls */
		struct sof_ipc_ctrl_value_chan chanv[0];
		/* component values used by routing controls like mux, mixer */
		struct sof_ipc_ctrl_value_comp compv[0];
		/* data can be used by binary controls */
		struct sof_abi_hdr data[0];
	};
} __packed;

/** Event type */
enum sof_ipc_ctrl_event_type {
	SOF_CTRL_EVENT_GENERIC = 0,	/**< generic event */
	SOF_CTRL_EVENT_GENERIC_METADATA,	/**< generic event with metadata */
	SOF_CTRL_EVENT_KD,	/**< keyword detection event */
	SOF_CTRL_EVENT_VAD,	/**< voice activity detection event */
};

/**
 * Generic notification data.
 */
struct sof_ipc_comp_event {
	struct sof_ipc_reply rhdr;
	uint16_t src_comp_type;	/**< COMP_TYPE_ */
	uint32_t src_comp_id;	/**< source component id */
	uint32_t event_type;	/**< event type - SOF_CTRL_EVENT_* */
	uint32_t num_elems;	/**< in array elems or bytes for data type */

/* reserved for future use */
	uint32_t reserved[8];

/* control data - add new types if needed */
	union {
		/* data can be used by binary controls */
		struct sof_abi_hdr data[0];
		/* event specific values */
		uint32_t event_value;
	};
} __packed;

#endif

NAME	TYPE	LAST MODIFIED	SIZE	OWNER / GROUP	PERMISSIONS	ACTION
..
channel_map.h	f!le	2021-10-31 20:53	1.97 KB	root / root	-rw-r--r--
control.h	f!le	2021-10-31 20:53	4.87 KB	root / root	-rw-r--r--
dai-imx.h	f!le	2021-10-31 20:53	1.21 KB	root / root	-rw-r--r--
dai-intel.h	f!le	2021-10-31 20:53	6.96 KB	root / root	-rw-r--r--
dai.h	f!le	2021-10-31 20:53	2.93 KB	root / root	-rw-r--r--
debug.h	f!le	2021-10-31 20:53	1.31 KB	root / root	-rw-r--r--
ext_manifest.h	f!le	2021-10-31 20:53	3.71 KB	root / root	-rw-r--r--
header.h	f!le	2021-10-31 20:53	6.71 KB	root / root	-rw-r--r--
info.h	f!le	2021-10-31 20:53	3.37 KB	root / root	-rw-r--r--
pm.h	f!le	2021-10-31 20:53	1.15 KB	root / root	-rw-r--r--
stream.h	f!le	2021-10-31 20:53	4.4 KB	root / root	-rw-r--r--
topology.h	f!le	2021-10-31 20:53	8.65 KB	root / root	-rw-r--r--
trace.h	f!le	2021-10-31 20:53	3.47 KB	root / root	-rw-r--r--
xtensa.h	f!le	2021-10-31 20:53	1.01 KB	root / root	-rw-r--r--