[alsa-devel] [PATCH v4 06/14] ASoC: SOF: Add support for loading topologies

13 Feb 2019

From: Liam Girdwood liam.r.girdwood@linux.intel.com
SOF uses topology to define the DAPM graphs and widgets, DAIs, PCMs and set
parameters for init and run time usage. This patch loads topology and
maps it to IPC commands that are build the topology on the DSP.
Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
---
 include/sound/sof/topology.h |  256 ++++
 sound/soc/sof/topology.c     | 2808 ++++++++++++++++++++++++++++++++++
 2 files changed, 3064 insertions(+)
 create mode 100644 include/sound/sof/topology.h
 create mode 100644 sound/soc/sof/topology.c

diff --git a/include/sound/sof/topology.h b/include/sound/sof/topology.h
new file mode 100644
index 000000000000..155758598ed5
--- /dev/null
+++ b/include/sound/sof/topology.h
@@ -0,0 +1,256 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) 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_TOPOLOGY_H__
+#define __INCLUDE_SOUND_SOF_TOPOLOGY_H__
+
+#include <sound/sof/header.h>
+
+/*
+ * Component
+ */
+
+/* types of component */
+enum sof_comp_type {
+	SOF_COMP_NONE = 0,
+	SOF_COMP_HOST,
+	SOF_COMP_DAI,
+	SOF_COMP_SG_HOST,	/**< scatter gather variant */
+	SOF_COMP_SG_DAI,	/**< scatter gather variant */
+	SOF_COMP_VOLUME,
+	SOF_COMP_MIXER,
+	SOF_COMP_MUX,
+	SOF_COMP_SRC,
+	SOF_COMP_SPLITTER,
+	SOF_COMP_TONE,
+	SOF_COMP_SWITCH,
+	SOF_COMP_BUFFER,
+	SOF_COMP_EQ_IIR,
+	SOF_COMP_EQ_FIR,
+	SOF_COMP_FILEREAD,	/**< host test based file IO */
+	SOF_COMP_FILEWRITE,	/**< host test based file IO */
+};
+
+/* XRUN action for component */
+#define SOF_XRUN_STOP		1	/**< stop stream */
+#define SOF_XRUN_UNDER_ZERO	2	/**< send 0s to sink */
+#define SOF_XRUN_OVER_NULL	4	/**< send data to NULL */
+
+/* create new generic component - SOF_IPC_TPLG_COMP_NEW */
+struct sof_ipc_comp {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t id;
+	enum sof_comp_type type;
+	uint32_t pipeline_id;
+
+	/* reserved for future use */
+	uint32_t reserved[2];
+} __packed;
+
+/*
+ * Component Buffers
+ */
+
+/*
+ * SOF memory capabilities, add new ones at the end
+ */
+#define SOF_MEM_CAPS_RAM			(1 << 0)
+#define SOF_MEM_CAPS_ROM			(1 << 1)
+#define SOF_MEM_CAPS_EXT			(1 << 2) /**< external */
+#define SOF_MEM_CAPS_LP			(1 << 3) /**< low power */
+#define SOF_MEM_CAPS_HP			(1 << 4) /**< high performance */
+#define SOF_MEM_CAPS_DMA			(1 << 5) /**< DMA'able */
+#define SOF_MEM_CAPS_CACHE			(1 << 6) /**< cacheable */
+#define SOF_MEM_CAPS_EXEC			(1 << 7) /**< executable */
+
+/* create new component buffer - SOF_IPC_TPLG_BUFFER_NEW */
+struct sof_ipc_buffer {
+	struct sof_ipc_comp comp;
+	uint32_t size;		/**< buffer size in bytes */
+	uint32_t caps;		/**< SOF_MEM_CAPS_ */
+} __packed;
+
+/* generic component config data - must always be after struct sof_ipc_comp */
+struct sof_ipc_comp_config {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t periods_sink;	/**< 0 means variable */
+	uint32_t periods_source;	/**< 0 means variable */
+	uint32_t preload_count;	/**< how many periods to preload */
+	uint32_t frame_fmt;		/**< SOF_IPC_FRAME_ */
+	uint32_t xrun_action;
+
+	/* reserved for future use */
+	uint32_t reserved[2];
+} __packed;
+
+/* generic host component */
+struct sof_ipc_comp_host {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	uint32_t direction;	/**< SOF_IPC_STREAM_ */
+	uint32_t no_irq;	/**< don't send periodic IRQ to host/DSP */
+	uint32_t dmac_config; /**< DMA engine specific */
+}  __packed;
+
+/* generic DAI component */
+struct sof_ipc_comp_dai {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	uint32_t direction;	/**< SOF_IPC_STREAM_ */
+	uint32_t dai_index; /**< index of this type dai */
+	uint32_t type;		/**< DAI type - SOF_DAI_ */
+	uint32_t dmac_config; /**< DMA engine specific */
+}  __packed;
+
+/* generic mixer component */
+struct sof_ipc_comp_mixer {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+}  __packed;
+
+/* volume ramping types */
+enum sof_volume_ramp {
+	SOF_VOLUME_LINEAR	= 0,
+	SOF_VOLUME_LOG,
+	SOF_VOLUME_LINEAR_ZC,
+	SOF_VOLUME_LOG_ZC,
+};
+
+/* generic volume component */
+struct sof_ipc_comp_volume {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	uint32_t channels;
+	uint32_t min_value;
+	uint32_t max_value;
+	uint32_t ramp;		/**< SOF_VOLUME_ */
+	uint32_t initial_ramp;	/**< ramp space in ms */
+}  __packed;
+
+/* generic SRC component */
+struct sof_ipc_comp_src {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	/* either source or sink rate must be non zero */
+	uint32_t source_rate;	/**< source rate or 0 for variable */
+	uint32_t sink_rate;	/**< sink rate or 0 for variable */
+	uint32_t rate_mask;	/**< SOF_RATE_ supported rates */
+} __packed;
+
+/* generic MUX component */
+struct sof_ipc_comp_mux {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+} __packed;
+
+/* generic tone generator component */
+struct sof_ipc_comp_tone {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	int32_t sample_rate;
+	int32_t frequency;
+	int32_t amplitude;
+	int32_t freq_mult;
+	int32_t ampl_mult;
+	int32_t length;
+	int32_t period;
+	int32_t repeats;
+	int32_t ramp_step;
+} __packed;
+
+/** \brief Types of EFFECT */
+enum sof_ipc_effect_type {
+	SOF_EFFECT_NONE = 0,		/**< None */
+	SOF_EFFECT_INTEL_EQFIR,		/**< Intel FIR */
+	SOF_EFFECT_INTEL_EQIIR,		/**< Intel IIR */
+};
+
+/* general purpose EFFECT configuration */
+struct sof_ipc_comp_effect {
+	struct sof_ipc_hdr hdr;
+	uint32_t type;			/** sof_ipc_effect_type */
+} __packed;
+
+/* FIR equalizer component */
+struct sof_ipc_comp_eq_fir {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	uint32_t size;
+
+	/* reserved for future use */
+	uint32_t reserved[8];
+
+	unsigned char data[0];
+} __packed;
+
+/* IIR equalizer component */
+struct sof_ipc_comp_eq_iir {
+	struct sof_ipc_comp comp;
+	struct sof_ipc_comp_config config;
+	uint32_t size;
+
+	/* reserved for future use */
+	uint32_t reserved[8];
+
+	unsigned char data[0];
+} __packed;
+
+/* frees components, buffers and pipelines
+ * SOF_IPC_TPLG_COMP_FREE, SOF_IPC_TPLG_PIPE_FREE, SOF_IPC_TPLG_BUFFER_FREE
+ */
+struct sof_ipc_free {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t id;
+} __packed;
+
+struct sof_ipc_comp_reply {
+	struct sof_ipc_reply rhdr;
+	uint32_t id;
+	uint32_t offset;
+} __packed;
+
+/*
+ * Pipeline
+ */
+
+/* new pipeline - SOF_IPC_TPLG_PIPE_NEW */
+struct sof_ipc_pipe_new {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t comp_id;	/**< component id for pipeline */
+	uint32_t pipeline_id;	/**< pipeline id */
+	uint32_t sched_id;	/**< Scheduling component id */
+	uint32_t core;		/**< core we run on */
+	uint32_t deadline;	/**< execution completion deadline in us*/
+	uint32_t priority;	/**< priority level 0 (low) to 10 (max) */
+	uint32_t period_mips;	/**< worst case instruction count per period */
+	uint32_t frames_per_sched;/**< output frames of pipeline, 0 is variable */
+	uint32_t xrun_limit_usecs; /**< report xruns greater than limit */
+
+	/* non zero if timer scheduled, otherwise DAI DMA irq scheduled */
+	uint32_t timer_delay;
+}  __packed;
+
+/* pipeline construction complete - SOF_IPC_TPLG_PIPE_COMPLETE */
+struct sof_ipc_pipe_ready {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t comp_id;
+}  __packed;
+
+struct sof_ipc_pipe_free {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t comp_id;
+}  __packed;
+
+/* connect two components in pipeline - SOF_IPC_TPLG_COMP_CONNECT */
+struct sof_ipc_pipe_comp_connect {
+	struct sof_ipc_cmd_hdr hdr;
+	uint32_t source_id;
+	uint32_t sink_id;
+}  __packed;
+
+#endif
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
new file mode 100644
index 000000000000..e163138088e6
--- /dev/null
+++ b/sound/soc/sof/topology.c
@@ -0,0 +1,2808 @@
+// SPDX-License-Identifier: (GPL-2.0 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.
+//
+// Author: Liam Girdwood liam.r.girdwood@linux.intel.com
+//
+
+#include <linux/firmware.h>
+#include <sound/tlv.h>
+#include <uapi/sound/sof/tokens.h>
+#include "sof-priv.h"
+#include "ops.h"
+
+#define COMP_ID_UNASSIGNED		0xffffffff
+/*
+ * Constants used in the computation of linear volume gain
+ * from dB gain 20th root of 10 in Q1.16 fixed-point notation
+ */
+#define VOL_TWENTIETH_ROOT_OF_TEN	73533
+/* 40th root of 10 in Q1.16 fixed-point notation*/
+#define VOL_FORTIETH_ROOT_OF_TEN	69419
+/*
+ * Volume fractional word length define to 16 sets
+ * the volume linear gain value to use Qx.16 format
+ */
+#define VOLUME_FWL	16
+/* 0.5 dB step value in topology TLV */
+#define VOL_HALF_DB_STEP	50
+/* Full volume for default values */
+#define VOL_ZERO_DB	BIT(VOLUME_FWL)
+
+/* TLV data items */
+#define TLV_ITEMS	3
+#define TLV_MIN		0
+#define TLV_STEP	1
+#define TLV_MUTE	2
+
+static inline int get_tlv_data(const int *p, int tlv[TLV_ITEMS])
+{
+	/* we only support dB scale TLV type at the moment */
+	if ((int)p[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
+		return -EINVAL;
+
+	/* min value in topology tlv data is multiplied by 100 */
+	tlv[TLV_MIN] = (int)p[SNDRV_CTL_TLVO_DB_SCALE_MIN] / 100;
+
+	/* volume steps */
+	tlv[TLV_STEP] = (int)(p[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] &
+				TLV_DB_SCALE_MASK);
+
+	/* mute ON/OFF */
+	if ((p[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] &
+		TLV_DB_SCALE_MUTE) == 0)
+		tlv[TLV_MUTE] = 0;
+	else
+		tlv[TLV_MUTE] = 1;
+
+	return 0;
+}
+
+/*
+ * Function to truncate an unsigned 64-bit number
+ * by x bits and return 32-bit unsigned number. This
+ * function also takes care of rounding while truncating
+ */
+static inline u32 vol_shift_64(u64 i, u32 x)
+{
+	/* do not truncate more than 32 bits */
+	if (x > 32)
+		x = 32;
+
+	if (x == 0)
+		return (u32)i;
+
+	return (u32)(((i >> (x - 1)) + 1) >> 1);
+}
+
+/*
+ * Function to compute a ^ exp where,
+ * a is a fractional number represented by a fixed-point
+ * integer with a fractional world length of "fwl"
+ * exp is an integer
+ * fwl is the fractional word length
+ * Return value is a fractional number represented by a
+ * fixed-point integer with a fractional word length of "fwl"
+ */
+static u32 vol_pow32(u32 a, int exp, u32 fwl)
+{
+	int i, iter;
+	u32 power = 1 << fwl;
+	u64 numerator;
+
+	/* if exponent is 0, return 1 */
+	if (exp == 0)
+		return power;
+
+	/* determine the number of iterations based on the exponent */
+	if (exp < 0)
+		iter = exp * -1;
+	else
+		iter = exp;
+
+	/* mutiply a "iter" times to compute power */
+	for (i = 0; i < iter; i++) {
+		/*
+		 * Product of 2 Qx.fwl fixed-point numbers yields a Q2*x.2*fwl
+		 * Truncate product back to fwl fractional bits with rounding
+		 */
+		power = vol_shift_64((u64)power * a, fwl);
+	}
+
+	if (exp > 0) {
+		/* if exp is positive, return the result */
+		return power;
+	}
+
+	/* if exp is negative, return the multiplicative inverse */
+	numerator = (u64)1 << (fwl << 1);
+	do_div(numerator, power);
+
+	return (u32)numerator;
+}
+
+/*
+ * Function to calculate volume gain from TLV data.
+ * This function can only handle gain steps that are multiples of 0.5 dB
+ */
+static u32 vol_compute_gain(u32 value, int *tlv)
+{
+	int dB_gain;
+	u32 linear_gain;
+	int f_step;
+
+	/* mute volume */
+	if (value == 0 && tlv[TLV_MUTE])
+		return 0;
+
+	/*
+	 * compute dB gain from tlv. tlv_step
+	 * in topology is multiplied by 100
+	 */
+	dB_gain = tlv[TLV_MIN] + (value * tlv[TLV_STEP]) / 100;
+
+	/*
+	 * compute linear gain represented by fixed-point
+	 * int with VOLUME_FWL fractional bits
+	 */
+	linear_gain = vol_pow32(VOL_TWENTIETH_ROOT_OF_TEN, dB_gain, VOLUME_FWL);
+
+	/* extract the fractional part of volume step */
+	f_step = tlv[TLV_STEP] - (tlv[TLV_STEP] / 100);
+
+	/* if volume step is an odd multiple of 0.5 dB */
+	if (f_step == VOL_HALF_DB_STEP && (value & 1))
+		linear_gain = vol_shift_64((u64)linear_gain *
+						  VOL_FORTIETH_ROOT_OF_TEN,
+						  VOLUME_FWL);
+
+	return linear_gain;
+}
+
+/*
+ * Set up volume table for kcontrols from tlv data
+ * "size" specifies the number of entries in the table
+ */
+static int set_up_volume_table(struct snd_sof_control *scontrol,
+			       int tlv[TLV_ITEMS], int size)
+{
+	int j;
+
+	/* init the volume table */
+	scontrol->volume_table = kcalloc(size, sizeof(u32), GFP_KERNEL);
+	if (!scontrol->volume_table)
+		return -ENOMEM;
+
+	/* populate the volume table */
+	for (j = 0; j < size ; j++)
+		scontrol->volume_table[j] = vol_compute_gain(j, tlv);
+
+	return 0;
+}
+
+struct sof_dai_types {
+	const char *name;
+	enum sof_ipc_dai_type type;
+};
+
+static const struct sof_dai_types sof_dais[] = {
+	{"SSP", SOF_DAI_INTEL_SSP},
+	{"HDA", SOF_DAI_INTEL_HDA},
+	{"DMIC", SOF_DAI_INTEL_DMIC},
+};
+
+static enum sof_ipc_dai_type find_dai(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sof_dais); i++) {
+		if (strcmp(name, sof_dais[i].name) == 0)
+			return sof_dais[i].type;
+	}
+
+	return SOF_DAI_INTEL_NONE;
+}
+
+/*
+ * Supported Frame format types and lookup, add new ones to end of list.
+ */
+
+struct sof_frame_types {
+	const char *name;
+	enum sof_ipc_frame frame;
+};
+
+static const struct sof_frame_types sof_frames[] = {
+	{"s16le", SOF_IPC_FRAME_S16_LE},
+	{"s24le", SOF_IPC_FRAME_S24_4LE},
+	{"s32le", SOF_IPC_FRAME_S32_LE},
+	{"float", SOF_IPC_FRAME_FLOAT},
+};
+
+static enum sof_ipc_frame find_format(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sof_frames); i++) {
+		if (strcmp(name, sof_frames[i].name) == 0)
+			return sof_frames[i].frame;
+	}
+
+	/* use s32le if nothing is specified */
+	return SOF_IPC_FRAME_S32_LE;
+}
+
+struct sof_effect_types {
+	const char *name;
+	enum sof_ipc_effect_type type;
+};
+
+static const struct sof_effect_types sof_effects[] = {
+	{"EQFIR", SOF_EFFECT_INTEL_EQFIR},
+	{"EQIIR", SOF_EFFECT_INTEL_EQIIR},
+};
+
+static enum sof_ipc_effect_type find_effect(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sof_effects); i++) {
+		if (strcmp(name, sof_effects[i].name) == 0)
+			return sof_effects[i].type;
+	}
+
+	return SOF_EFFECT_NONE;
+}
+
+/*
+ * Standard Kcontrols.
+ */
+
+static int sof_control_load_volume(struct snd_soc_component *scomp,
+				   struct snd_sof_control *scontrol,
+				   struct snd_kcontrol_new *kc,
+				   struct snd_soc_tplg_ctl_hdr *hdr)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_mixer_control *mc =
+		(struct snd_soc_tplg_mixer_control *)hdr;
+
+	/* validate topology data */
+	if (le32_to_cpu(mc->num_channels) > SND_SOC_TPLG_MAX_CHAN)
+		return -EINVAL;
+
+	/* init the volume get/put data */
+	scontrol->size = sizeof(struct sof_ipc_ctrl_data) +
+			 sizeof(struct sof_ipc_ctrl_value_chan) *
+			 le32_to_cpu(mc->num_channels);
+	scontrol->control_data = kzalloc(scontrol->size, GFP_KERNEL);
+	if (!scontrol->control_data)
+		return -ENOMEM;
+
+	scontrol->comp_id = sdev->next_comp_id;
+	scontrol->num_channels = le32_to_cpu(mc->num_channels);
+
+	dev_dbg(sdev->dev, "tplg: load kcontrol index %d chans %d\n",
+		scontrol->comp_id, scontrol->num_channels);
+
+	return 0;
+}
+
+static int sof_control_load_bytes(struct snd_soc_component *scomp,
+				  struct snd_sof_control *scontrol,
+				  struct snd_kcontrol_new *kc,
+				  struct snd_soc_tplg_ctl_hdr *hdr)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct sof_ipc_ctrl_data *cdata;
+	struct snd_soc_tplg_bytes_control *control =
+		(struct snd_soc_tplg_bytes_control *)hdr;
+	const int max_size = SOF_IPC_MSG_MAX_SIZE -
+		sizeof(const struct sof_ipc_ctrl_data);
+
+	/* init the get/put bytes data */
+	scontrol->size = SOF_IPC_MSG_MAX_SIZE;
+	scontrol->control_data = kzalloc(scontrol->size, GFP_KERNEL);
+	cdata = scontrol->control_data;
+	if (!scontrol->control_data)
+		return -ENOMEM;
+
+	scontrol->comp_id = sdev->next_comp_id;
+	scontrol->cmd = SOF_CTRL_CMD_BINARY;
+
+	dev_dbg(sdev->dev, "tplg: load kcontrol index %d chans %d\n",
+		scontrol->comp_id, scontrol->num_channels);
+
+	if (le32_to_cpu(control->priv.size) > max_size) {
+		dev_err(sdev->dev, "error: bytes priv data size %d exceeds max %d.\n",
+			control->priv.size, max_size);
+		return -EINVAL;
+	}
+
+	if (le32_to_cpu(control->priv.size) > 0) {
+		memcpy(cdata->data, control->priv.data,
+		       le32_to_cpu(control->priv.size));
+
+		if (cdata->data->magic != SOF_ABI_MAGIC) {
+			dev_err(sdev->dev, "error: Wrong ABI magic 0x%08x.\n",
+				cdata->data->magic);
+			return -EINVAL;
+		}
+		if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION,
+						 cdata->data->abi)) {
+			dev_err(sdev->dev,
+				"error: Incompatible ABI version 0x%08x.\n",
+				cdata->data->abi);
+			return -EINVAL;
+		}
+		if (cdata->data->size + sizeof(const struct sof_abi_hdr) !=
+		    le32_to_cpu(control->priv.size)) {
+			dev_err(sdev->dev,
+				"error: Conflict in bytes vs. priv size.\n");
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Topology Token Parsing.
+ * New tokens should be added to headers and parsing tables below.
+ */
+
+struct sof_topology_token {
+	u32 token;
+	u32 type;
+	int (*get_token)(void *elem, void *object, u32 offset, u32 size);
+	u32 offset;
+	u32 size;
+};
+
+static int get_token_u32(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_value_elem *velem = elem;
+	u32 *val = object + offset;
+
+	*val = le32_to_cpu(velem->value);
+	return 0;
+}
+
+static int get_token_u16(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_value_elem *velem = elem;
+	u16 *val = object + offset;
+
+	*val = (u16)le32_to_cpu(velem->value);
+	return 0;
+}
+
+static int get_token_comp_format(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_string_elem *velem = elem;
+	u32 *val = object + offset;
+
+	*val = find_format(velem->string);
+	return 0;
+}
+
+static int get_token_dai_type(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_string_elem *velem = elem;
+	u32 *val = object + offset;
+
+	*val = find_dai(velem->string);
+	return 0;
+}
+
+static int get_token_effect_type(void *elem, void *object, u32 offset, u32 size)
+{
+	struct snd_soc_tplg_vendor_string_elem *velem = elem;
+	u32 *val = object + offset;
+
+	*val = find_effect(velem->string);
+	return 0;
+}
+
+/* Buffers */
+static const struct sof_topology_token buffer_tokens[] = {
+	{SOF_TKN_BUF_SIZE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_buffer, size), 0},
+	{SOF_TKN_BUF_CAPS, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_buffer, caps), 0},
+};
+
+/* DAI */
+static const struct sof_topology_token dai_tokens[] = {
+	{SOF_TKN_DAI_DMAC_CONFIG, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_dai, dmac_config), 0},
+	{SOF_TKN_DAI_TYPE, SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_dai_type,
+		offsetof(struct sof_ipc_comp_dai, type), 0},
+	{SOF_TKN_DAI_INDEX, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_dai, dai_index), 0},
+	{SOF_TKN_DAI_DIRECTION, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_dai, direction), 0},
+};
+
+/* BE DAI link */
+static const struct sof_topology_token dai_link_tokens[] = {
+	{SOF_TKN_DAI_TYPE, SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_dai_type,
+		offsetof(struct sof_ipc_dai_config, type), 0},
+	{SOF_TKN_DAI_INDEX, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_config, dai_index), 0},
+};
+
+/* scheduling */
+static const struct sof_topology_token sched_tokens[] = {
+	{SOF_TKN_SCHED_DEADLINE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, deadline), 0},
+	{SOF_TKN_SCHED_PRIORITY, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, priority), 0},
+	{SOF_TKN_SCHED_MIPS, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, period_mips), 0},
+	{SOF_TKN_SCHED_CORE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, core), 0},
+	{SOF_TKN_SCHED_FRAMES, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, frames_per_sched), 0},
+	{SOF_TKN_SCHED_TIMER, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_pipe_new, timer_delay), 0},
+};
+
+/* volume */
+static const struct sof_topology_token volume_tokens[] = {
+	{SOF_TKN_VOLUME_RAMP_STEP_TYPE, SND_SOC_TPLG_TUPLE_TYPE_WORD,
+		get_token_u32, offsetof(struct sof_ipc_comp_volume, ramp), 0},
+	{SOF_TKN_VOLUME_RAMP_STEP_MS,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_volume, initial_ramp), 0},
+};
+
+/* SRC */
+static const struct sof_topology_token src_tokens[] = {
+	{SOF_TKN_SRC_RATE_IN, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_src, source_rate), 0},
+	{SOF_TKN_SRC_RATE_OUT, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_src, sink_rate), 0},
+};
+
+/* Tone */
+static const struct sof_topology_token tone_tokens[] = {
+};
+
+/* EFFECT */
+static const struct sof_topology_token effect_tokens[] = {
+	{SOF_TKN_EFFECT_TYPE, SND_SOC_TPLG_TUPLE_TYPE_STRING,
+		get_token_effect_type,
+		offsetof(struct sof_ipc_comp_effect, type), 0},
+};
+
+/* PCM */
+static const struct sof_topology_token pcm_tokens[] = {
+	{SOF_TKN_PCM_DMAC_CONFIG, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_host, dmac_config), 0},
+};
+
+/* Generic components */
+static const struct sof_topology_token comp_tokens[] = {
+	{SOF_TKN_COMP_PERIOD_SINK_COUNT,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_config, periods_sink), 0},
+	{SOF_TKN_COMP_PERIOD_SOURCE_COUNT,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_config, periods_source), 0},
+	{SOF_TKN_COMP_FORMAT,
+		SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_comp_format,
+		offsetof(struct sof_ipc_comp_config, frame_fmt), 0},
+	{SOF_TKN_COMP_PRELOAD_COUNT,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_comp_config, preload_count), 0},
+};
+
+/* SSP */
+static const struct sof_topology_token ssp_tokens[] = {
+	{SOF_TKN_INTEL_SSP_CLKS_CONTROL,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_ssp_params, clks_control), 0},
+	{SOF_TKN_INTEL_SSP_MCLK_ID,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_ssp_params, mclk_id), 0},
+	{SOF_TKN_INTEL_SSP_SAMPLE_BITS, SND_SOC_TPLG_TUPLE_TYPE_WORD,
+		get_token_u32,
+		offsetof(struct sof_ipc_dai_ssp_params, sample_valid_bits), 0},
+	{SOF_TKN_INTEL_SSP_FRAME_PULSE_WIDTH, SND_SOC_TPLG_TUPLE_TYPE_SHORT,
+		get_token_u16,
+		offsetof(struct sof_ipc_dai_ssp_params, frame_pulse_width), 0},
+	{SOF_TKN_INTEL_SSP_QUIRKS, SND_SOC_TPLG_TUPLE_TYPE_WORD,
+		get_token_u32,
+		offsetof(struct sof_ipc_dai_ssp_params, quirks), 0},
+	{SOF_TKN_INTEL_SSP_TDM_PADDING_PER_SLOT, SND_SOC_TPLG_TUPLE_TYPE_BOOL,
+		get_token_u16,
+		offsetof(struct sof_ipc_dai_ssp_params,
+			 tdm_per_slot_padding_flag), 0},
+
+};
+
+/* DMIC */
+static const struct sof_topology_token dmic_tokens[] = {
+	{SOF_TKN_INTEL_DMIC_DRIVER_VERSION,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_dmic_params, driver_ipc_version),
+		0},
+	{SOF_TKN_INTEL_DMIC_CLK_MIN,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_dmic_params, pdmclk_min), 0},
+	{SOF_TKN_INTEL_DMIC_CLK_MAX,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_dmic_params, pdmclk_max), 0},
+	{SOF_TKN_INTEL_DMIC_SAMPLE_RATE,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_dmic_params, fifo_fs), 0},
+	{SOF_TKN_INTEL_DMIC_DUTY_MIN,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_params, duty_min), 0},
+	{SOF_TKN_INTEL_DMIC_DUTY_MAX,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_params, duty_max), 0},
+	{SOF_TKN_INTEL_DMIC_NUM_PDM_ACTIVE,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_dmic_params,
+			 num_pdm_active), 0},
+	{SOF_TKN_INTEL_DMIC_FIFO_WORD_LENGTH,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_params, fifo_bits), 0},
+};
+
+/*
+ * DMIC PDM Tokens
+ * SOF_TKN_INTEL_DMIC_PDM_CTRL_ID should be the first token
+ * as it increments the index while parsing the array of pdm tokens
+ * and determines the correct offset
+ */
+static const struct sof_topology_token dmic_pdm_tokens[] = {
+	{SOF_TKN_INTEL_DMIC_PDM_CTRL_ID,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, id),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_MIC_A_Enable,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, enable_mic_a),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_MIC_B_Enable,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, enable_mic_b),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_POLARITY_A,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, polarity_mic_a),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_POLARITY_B,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, polarity_mic_b),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_CLK_EDGE,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, clk_edge),
+		0},
+	{SOF_TKN_INTEL_DMIC_PDM_SKEW,
+		SND_SOC_TPLG_TUPLE_TYPE_SHORT, get_token_u16,
+		offsetof(struct sof_ipc_dai_dmic_pdm_ctrl, skew),
+		0},
+};
+
+/* HDA */
+static const struct sof_topology_token hda_tokens[] = {
+};
+
+static void sof_parse_uuid_tokens(struct snd_soc_component *scomp,
+				  void *object,
+				  const struct sof_topology_token *tokens,
+				  int count,
+				  struct snd_soc_tplg_vendor_array *array)
+{
+	struct snd_soc_tplg_vendor_uuid_elem *elem;
+	int i, j;
+
+	/* parse element by element */
+	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
+		elem = &array->uuid[i];
+
+		/* search for token */
+		for (j = 0; j < count; j++) {
+			/* match token type */
+			if (tokens[j].type != SND_SOC_TPLG_TUPLE_TYPE_UUID)
+				continue;
+
+			/* match token id */
+			if (tokens[j].token != le32_to_cpu(elem->token))
+				continue;
+
+			/* matched - now load token */
+			tokens[j].get_token(elem, object, tokens[j].offset,
+					    tokens[j].size);
+		}
+	}
+}
+
+static void sof_parse_string_tokens(struct snd_soc_component *scomp,
+				    void *object,
+				    const struct sof_topology_token *tokens,
+				    int count,
+				    struct snd_soc_tplg_vendor_array *array)
+{
+	struct snd_soc_tplg_vendor_string_elem *elem;
+	int i, j;
+
+	/* parse element by element */
+	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
+		elem = &array->string[i];
+
+		/* search for token */
+		for (j = 0; j < count; j++) {
+			/* match token type */
+			if (tokens[j].type != SND_SOC_TPLG_TUPLE_TYPE_STRING)
+				continue;
+
+			/* match token id */
+			if (tokens[j].token != le32_to_cpu(elem->token))
+				continue;
+
+			/* matched - now load token */
+			tokens[j].get_token(elem, object, tokens[j].offset,
+					    tokens[j].size);
+		}
+	}
+}
+
+static void sof_parse_word_tokens(struct snd_soc_component *scomp,
+				  void *object,
+				  const struct sof_topology_token *tokens,
+				  int count,
+				  struct snd_soc_tplg_vendor_array *array)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_vendor_value_elem *elem;
+	size_t size = sizeof(struct sof_ipc_dai_dmic_pdm_ctrl);
+	int i, j;
+	u32 offset;
+	u32 *index = NULL;
+
+	/* parse element by element */
+	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
+		elem = &array->value[i];
+
+		/* search for token */
+		for (j = 0; j < count; j++) {
+			/* match token type */
+			if (!(tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_WORD ||
+			      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_SHORT))
+				continue;
+
+			/* match token id */
+			if (tokens[j].token != le32_to_cpu(elem->token))
+				continue;
+
+			/* pdm config array index */
+			if (sdev->private)
+				index = (u32 *)sdev->private;
+
+			/* matched - determine offset */
+			switch (tokens[j].token) {
+			case SOF_TKN_INTEL_DMIC_PDM_CTRL_ID:
+
+				/* inc number of pdm array index */
+				if (index)
+					(*index)++;
+				/* fallthrough */
+			case SOF_TKN_INTEL_DMIC_PDM_MIC_A_Enable:
+			case SOF_TKN_INTEL_DMIC_PDM_MIC_B_Enable:
+			case SOF_TKN_INTEL_DMIC_PDM_POLARITY_A:
+			case SOF_TKN_INTEL_DMIC_PDM_POLARITY_B:
+			case SOF_TKN_INTEL_DMIC_PDM_CLK_EDGE:
+			case SOF_TKN_INTEL_DMIC_PDM_SKEW:
+
+				/* check if array index is valid */
+				if (!index || *index == 0) {
+					dev_err(sdev->dev,
+						"error: invalid array offset\n");
+					continue;
+				} else {
+					/* offset within the pdm config array */
+					offset = size * (*index - 1);
+				}
+				break;
+			default:
+				offset = 0;
+				break;
+			}
+
+			/* load token */
+			tokens[j].get_token(elem, object,
+					    offset + tokens[j].offset,
+					    tokens[j].size);
+		}
+	}
+}
+
+static int sof_parse_tokens(struct snd_soc_component *scomp,
+			    void *object,
+			    const struct sof_topology_token *tokens,
+			    int count,
+			    struct snd_soc_tplg_vendor_array *array,
+			    int priv_size)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	int asize;
+
+	while (priv_size > 0) {
+		asize = le32_to_cpu(array->size);
+
+		/* validate asize */
+		if (asize < 0) { /* FIXME: A zero-size array makes no sense */
+			dev_err(sdev->dev, "error: invalid array size 0x%x\n",
+				asize);
+			return -EINVAL;
+		}
+
+		/* make sure there is enough data before parsing */
+		priv_size -= asize;
+		if (priv_size < 0) {
+			dev_err(sdev->dev, "error: invalid array size 0x%x\n",
+				asize);
+			return -EINVAL;
+		}
+
+		/* call correct parser depending on type */
+		switch (le32_to_cpu(array->type)) {
+		case SND_SOC_TPLG_TUPLE_TYPE_UUID:
+			sof_parse_uuid_tokens(scomp, object, tokens, count,
+					      array);
+			break;
+		case SND_SOC_TPLG_TUPLE_TYPE_STRING:
+			sof_parse_string_tokens(scomp, object, tokens, count,
+						array);
+			break;
+		case SND_SOC_TPLG_TUPLE_TYPE_BOOL:
+		case SND_SOC_TPLG_TUPLE_TYPE_BYTE:
+		case SND_SOC_TPLG_TUPLE_TYPE_WORD:
+		case SND_SOC_TPLG_TUPLE_TYPE_SHORT:
+			sof_parse_word_tokens(scomp, object, tokens, count,
+					      array);
+			break;
+		default:
+			dev_err(sdev->dev, "error: unknown token type %d\n",
+				array->type);
+			return -EINVAL;
+		}
+
+		/* next array */
+		array = (void *)array + asize;
+	}
+	return 0;
+}
+
+static void sof_dbg_comp_config(struct snd_soc_component *scomp,
+				struct sof_ipc_comp_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+
+	dev_dbg(sdev->dev, " config: periods snk %d src %d fmt %d\n",
+		config->periods_sink, config->periods_source,
+		config->frame_fmt);
+}
+
+/* external kcontrol init - used for any driver specific init */
+static int sof_control_load(struct snd_soc_component *scomp, int index,
+			    struct snd_kcontrol_new *kc,
+			    struct snd_soc_tplg_ctl_hdr *hdr)
+{
+	struct soc_mixer_control *sm;
+	struct soc_bytes_ext  *sbe;
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_dobj *dobj = NULL;
+	struct snd_sof_control *scontrol;
+	int ret = -EINVAL;
+
+	dev_dbg(sdev->dev, "tplg: load control type %d name : %s\n",
+		hdr->type, hdr->name);
+
+	scontrol = kzalloc(sizeof(*scontrol), GFP_KERNEL);
+	if (!scontrol)
+		return -ENOMEM;
+
+	scontrol->sdev = sdev;
+	mutex_init(&scontrol->mutex);
+
+	switch (le32_to_cpu(hdr->ops.info)) {
+	case SND_SOC_TPLG_CTL_VOLSW:
+	case SND_SOC_TPLG_CTL_VOLSW_SX:
+	case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
+		sm = (struct soc_mixer_control *)kc->private_value;
+		dobj = &sm->dobj;
+		ret = sof_control_load_volume(scomp, scontrol, kc, hdr);
+		break;
+	case SND_SOC_TPLG_CTL_BYTES:
+		sbe = (struct soc_bytes_ext *)kc->private_value;
+		dobj = &sbe->dobj;
+		ret = sof_control_load_bytes(scomp, scontrol, kc, hdr);
+		break;
+	case SND_SOC_TPLG_CTL_ENUM:
+	case SND_SOC_TPLG_CTL_ENUM_VALUE:
+	case SND_SOC_TPLG_CTL_RANGE:
+	case SND_SOC_TPLG_CTL_STROBE:
+	case SND_SOC_TPLG_DAPM_CTL_VOLSW:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+	case SND_SOC_TPLG_DAPM_CTL_PIN:
+	default:
+		dev_warn(sdev->dev, "control type not supported %d:%d:%d\n",
+			 hdr->ops.get, hdr->ops.put, hdr->ops.info);
+		kfree(scontrol);
+		return 0;
+	}
+
+	dobj->private = scontrol;
+	list_add(&scontrol->list, &sdev->kcontrol_list);
+	return ret;
+}
+
+static int sof_control_unload(struct snd_soc_component *scomp,
+			      struct snd_soc_dobj *dobj)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct sof_ipc_free fcomp;
+	struct snd_sof_control *scontrol = dobj->private;
+
+	dev_dbg(sdev->dev, "tplg: unload control name : %s\n", scomp->name);
+
+	fcomp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_FREE;
+	fcomp.hdr.size = sizeof(fcomp);
+	fcomp.id = scontrol->comp_id;
+
+	/* send IPC to the DSP */
+	return sof_ipc_tx_message(sdev->ipc,
+				  fcomp.hdr.cmd, &fcomp, sizeof(fcomp),
+				  NULL, 0);
+}
+
+/*
+ * DAI Topology
+ */
+
+static int sof_connect_dai_widget(struct snd_soc_component *scomp,
+				  struct snd_soc_dapm_widget *w,
+				  struct snd_soc_tplg_dapm_widget *tw,
+				  struct snd_sof_dai *dai)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_card *card = scomp->card;
+	struct snd_soc_pcm_runtime *rtd;
+
+	list_for_each_entry(rtd, &card->rtd_list, list) {
+		dev_vdbg(sdev->dev, "tplg: check widget: %s stream: %s dai stream: %s\n",
+			 w->name,  w->sname, rtd->dai_link->stream_name);
+
+		if (!w->sname || !rtd->dai_link->stream_name)
+			continue;
+
+		/* does stream match DAI link ? */
+		if (strcmp(w->sname, rtd->dai_link->stream_name))
+			continue;
+
+		switch (w->id) {
+		case snd_soc_dapm_dai_out:
+			rtd->cpu_dai->capture_widget = w;
+			if (dai)
+				dai->name = rtd->dai_link->name;
+			dev_dbg(sdev->dev, "tplg: connected widget %s -> DAI link %s\n",
+				w->name, rtd->dai_link->name);
+			break;
+		case snd_soc_dapm_dai_in:
+			rtd->cpu_dai->playback_widget = w;
+			if (dai)
+				dai->name = rtd->dai_link->name;
+			dev_dbg(sdev->dev, "tplg: connected widget %s -> DAI link %s\n",
+				w->name, rtd->dai_link->name);
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* check we have a connection */
+	if (!dai->name) {
+		dev_err(sdev->dev, "error: can't connect DAI %s stream %s\n",
+			w->name, w->sname);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int sof_widget_load_dai(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r,
+			       struct snd_sof_dai *dai)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_dai comp_dai;
+	int ret;
+
+	/* configure dai IPC message */
+	memset(&comp_dai, 0, sizeof(comp_dai));
+	comp_dai.comp.hdr.size = sizeof(comp_dai);
+	comp_dai.comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	comp_dai.comp.id = swidget->comp_id;
+	comp_dai.comp.type = SOF_COMP_DAI;
+	comp_dai.comp.pipeline_id = index;
+	comp_dai.config.hdr.size = sizeof(comp_dai.config);
+
+	ret = sof_parse_tokens(scomp, &comp_dai, dai_tokens,
+			       ARRAY_SIZE(dai_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse dai tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	ret = sof_parse_tokens(scomp, &comp_dai.config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse dai.cfg tokens failed %d\n",
+			private->size);
+		return ret;
+	}
+
+	dev_dbg(sdev->dev, "dai %s: type %d index %d\n",
+		swidget->widget->name, comp_dai.type, comp_dai.dai_index);
+	sof_dbg_comp_config(scomp, &comp_dai.config);
+
+	ret = sof_ipc_tx_message(sdev->ipc, comp_dai.comp.hdr.cmd,
+				 &comp_dai, sizeof(comp_dai), r, sizeof(*r));
+
+	if (ret == 0 && dai) {
+		dai->sdev = sdev;
+		memcpy(&dai->comp_dai, &comp_dai, sizeof(comp_dai));
+	}
+
+	return ret;
+}
+
+/*
+ * Buffer topology
+ */
+
+static int sof_widget_load_buffer(struct snd_soc_component *scomp, int index,
+				  struct snd_sof_widget *swidget,
+				  struct snd_soc_tplg_dapm_widget *tw,
+				  struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_buffer *buffer;
+	int ret;
+
+	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
+	/* configure dai IPC message */
+	buffer->comp.hdr.size = sizeof(*buffer);
+	buffer->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_BUFFER_NEW;
+	buffer->comp.id = swidget->comp_id;
+	buffer->comp.type = SOF_COMP_BUFFER;
+	buffer->comp.pipeline_id = index;
+
+	ret = sof_parse_tokens(scomp, buffer, buffer_tokens,
+			       ARRAY_SIZE(buffer_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse buffer tokens failed %d\n",
+			private->size);
+		kfree(buffer);
+		return ret;
+	}
+
+	dev_dbg(sdev->dev, "buffer %s: size %d caps 0x%x\n",
+		swidget->widget->name, buffer->size, buffer->caps);
+
+	swidget->private = (void *)buffer;
+
+	ret = sof_ipc_tx_message(sdev->ipc, buffer->comp.hdr.cmd, buffer,
+				 sizeof(*buffer), r, sizeof(*r));
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: buffer %s load failed\n",
+			swidget->widget->name);
+		kfree(buffer);
+	}
+
+	return ret;
+}
+
+/*
+ * PCM Topology
+ */
+
+static int sof_widget_load_pcm(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       enum sof_ipc_stream_direction dir,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_host *host;
+	int ret;
+
+	host = kzalloc(sizeof(*host), GFP_KERNEL);
+	if (!host)
+		return -ENOMEM;
+
+	/* configure mixer IPC message */
+	host->comp.hdr.size = sizeof(*host);
+	host->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	host->comp.id = swidget->comp_id;
+	host->comp.type = SOF_COMP_HOST;
+	host->comp.pipeline_id = index;
+	host->direction = dir;
+	host->config.hdr.size = sizeof(host->config);
+
+	ret = sof_parse_tokens(scomp, host, pcm_tokens,
+			       ARRAY_SIZE(pcm_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse host tokens failed %d\n",
+			private->size);
+		goto err;
+	}
+
+	ret = sof_parse_tokens(scomp, &host->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse host.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	dev_dbg(sdev->dev, "loaded host %s\n", swidget->widget->name);
+	sof_dbg_comp_config(scomp, &host->config);
+
+	swidget->private = (void *)host;
+
+	ret = sof_ipc_tx_message(sdev->ipc, host->comp.hdr.cmd, host,
+				 sizeof(*host), r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(host);
+	return ret;
+}
+
+/*
+ * Pipeline Topology
+ */
+int sof_load_pipeline_ipc(struct snd_sof_dev *sdev,
+			  struct sof_ipc_pipe_new *pipeline,
+			  struct sof_ipc_comp_reply *r)
+{
+	struct sof_ipc_pm_core_config pm_core_config;
+	int ret = 0;
+
+	ret = sof_ipc_tx_message(sdev->ipc, pipeline->hdr.cmd, pipeline,
+				 sizeof(*pipeline), r, sizeof(*r));
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: load pipeline ipc failure\n");
+		return ret;
+	}
+
+	/* power up the core that this pipeline is scheduled on */
+	ret = snd_sof_dsp_core_power_up(sdev, 1 << pipeline->core);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: powering up pipeline schedule core %d\n",
+			pipeline->core);
+		return ret;
+	}
+
+	/*
+	 * Now notify DSP that the core that this pipeline is scheduled on
+	 * has been powered up
+	 */
+	memset(&pm_core_config, 0, sizeof(pm_core_config));
+	pm_core_config.enable_mask = 1 << pipeline->core;
+
+	/* configure CORE_ENABLE ipc message */
+	pm_core_config.hdr.size = sizeof(pm_core_config);
+	pm_core_config.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE;
+
+	/* send ipc */
+	ret = sof_ipc_tx_message(sdev->ipc, pm_core_config.hdr.cmd,
+				 &pm_core_config, sizeof(pm_core_config),
+				 &pm_core_config, sizeof(pm_core_config));
+	if (ret < 0)
+		dev_err(sdev->dev, "error: core enable ipc failure\n");
+
+	return ret;
+}
+
+static int sof_widget_load_pipeline(struct snd_soc_component *scomp,
+				    int index, struct snd_sof_widget *swidget,
+				    struct snd_soc_tplg_dapm_widget *tw,
+				    struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_pipe_new *pipeline;
+	struct snd_sof_widget *comp_swidget;
+	int ret;
+
+	pipeline = kzalloc(sizeof(*pipeline), GFP_KERNEL);
+	if (!pipeline)
+		return -ENOMEM;
+
+	/* configure dai IPC message */
+	pipeline->hdr.size = sizeof(*pipeline);
+	pipeline->hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_PIPE_NEW;
+	pipeline->pipeline_id = index;
+	pipeline->comp_id = swidget->comp_id;
+
+	/* component at start of pipeline is our stream id */
+	comp_swidget = snd_sof_find_swidget(sdev, tw->sname);
+	if (!comp_swidget) {
+		dev_err(sdev->dev, "error: widget %s refers to non existent widget %s\n",
+			tw->name, tw->sname);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	pipeline->sched_id = comp_swidget->comp_id;
+
+	dev_dbg(sdev->dev, "tplg: pipeline id %d comp %d scheduling comp id %d\n",
+		pipeline->pipeline_id, pipeline->comp_id, pipeline->sched_id);
+
+	ret = sof_parse_tokens(scomp, pipeline, sched_tokens,
+			       ARRAY_SIZE(sched_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse pipeline tokens failed %d\n",
+			private->size);
+		goto err;
+	}
+
+	dev_dbg(sdev->dev, "pipeline %s: deadline %d pri %d mips %d core %d frames %d\n",
+		swidget->widget->name, pipeline->deadline, pipeline->priority,
+		pipeline->period_mips, pipeline->core, pipeline->frames_per_sched);
+
+	swidget->private = (void *)pipeline;
+
+	/* send ipc's to create pipeline comp and power up schedule core */
+	ret = sof_load_pipeline_ipc(sdev, pipeline, r);
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(pipeline);
+	return ret;
+}
+
+/*
+ * Mixer topology
+ */
+
+static int sof_widget_load_mixer(struct snd_soc_component *scomp, int index,
+				 struct snd_sof_widget *swidget,
+				 struct snd_soc_tplg_dapm_widget *tw,
+				 struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_mixer *mixer;
+	int ret;
+
+	mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
+	if (!mixer)
+		return -ENOMEM;
+
+	/* configure mixer IPC message */
+	mixer->comp.hdr.size = sizeof(*mixer);
+	mixer->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	mixer->comp.id = swidget->comp_id;
+	mixer->comp.type = SOF_COMP_MIXER;
+	mixer->comp.pipeline_id = index;
+	mixer->config.hdr.size = sizeof(mixer->config);
+
+	ret = sof_parse_tokens(scomp, &mixer->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse mixer.cfg tokens failed %d\n",
+			private->size);
+		kfree(mixer);
+		return ret;
+	}
+
+	sof_dbg_comp_config(scomp, &mixer->config);
+
+	swidget->private = (void *)mixer;
+
+	ret = sof_ipc_tx_message(sdev->ipc, mixer->comp.hdr.cmd, mixer,
+				 sizeof(*mixer), r, sizeof(*r));
+	if (ret < 0)
+		kfree(mixer);
+
+	return ret;
+}
+
+/*
+ * PGA Topology
+ */
+
+static int sof_widget_load_pga(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_volume *volume;
+	struct snd_soc_dapm_widget *widget = swidget->widget;
+	const struct snd_kcontrol_new *kc = NULL;
+	struct soc_mixer_control *sm;
+	struct snd_sof_control *scontrol;
+	struct sof_ipc_ctrl_data *cdata;
+	const unsigned int *p;
+	int ret, tlv[TLV_ITEMS];
+	unsigned int i;
+
+	volume = kzalloc(sizeof(*volume), GFP_KERNEL);
+	if (!volume)
+		return -ENOMEM;
+
+	if (le32_to_cpu(tw->num_kcontrols) != 1) {
+		dev_err(sdev->dev, "error: invalid kcontrol count %d for volume\n",
+			tw->num_kcontrols);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* set up volume gain tables for kcontrol */
+	kc = &widget->kcontrol_news[0];
+	sm = (struct soc_mixer_control *)kc->private_value;
+
+	/* get volume control */
+	scontrol = sm->dobj.private;
+
+	/* set cmd for pga kcontrol */
+	scontrol->cmd = SOF_CTRL_CMD_VOLUME;
+
+	/* get topology tlv data */
+	p = kc->tlv.p;
+
+	/* extract tlv data */
+	if (get_tlv_data(p, tlv) < 0) {
+		dev_err(sdev->dev, "error: invalid TLV data\n");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* set up volume table */
+	ret = set_up_volume_table(scontrol, tlv, sm->max + 1);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: setting up volume table\n");
+		goto err;
+	}
+
+	/* configure dai IPC message */
+	volume->comp.hdr.size = sizeof(*volume);
+	volume->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	volume->comp.id = swidget->comp_id;
+	volume->comp.type = SOF_COMP_VOLUME;
+	volume->comp.pipeline_id = index;
+	volume->config.hdr.size = sizeof(volume->config);
+
+	ret = sof_parse_tokens(scomp, volume, volume_tokens,
+			       ARRAY_SIZE(volume_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse volume tokens failed %d\n",
+			private->size);
+		goto err;
+	}
+	ret = sof_parse_tokens(scomp, &volume->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse volume.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	/* set default volume values to 0dB in control */
+	cdata = scontrol->control_data;
+	for (i = 0; i < scontrol->num_channels; i++) {
+		cdata->chanv[i].channel = i;
+		cdata->chanv[i].value = VOL_ZERO_DB;
+	}
+
+	sof_dbg_comp_config(scomp, &volume->config);
+
+	swidget->private = (void *)volume;
+
+	ret = sof_ipc_tx_message(sdev->ipc, volume->comp.hdr.cmd, volume,
+				 sizeof(*volume), r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(volume);
+	return ret;
+}
+
+/*
+ * SRC Topology
+ */
+
+static int sof_widget_load_src(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_src *src;
+	int ret;
+
+	src = kzalloc(sizeof(*src), GFP_KERNEL);
+	if (!src)
+		return -ENOMEM;
+
+	/* configure mixer IPC message */
+	src->comp.hdr.size = sizeof(*src);
+	src->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	src->comp.id = swidget->comp_id;
+	src->comp.type = SOF_COMP_SRC;
+	src->comp.pipeline_id = index;
+	src->config.hdr.size = sizeof(src->config);
+
+	ret = sof_parse_tokens(scomp, src, src_tokens,
+			       ARRAY_SIZE(src_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse src tokens failed %d\n",
+			private->size);
+		goto err;
+	}
+
+	ret = sof_parse_tokens(scomp, &src->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse src.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	dev_dbg(sdev->dev, "src %s: source rate %d sink rate %d\n",
+		swidget->widget->name, src->source_rate, src->sink_rate);
+	sof_dbg_comp_config(scomp, &src->config);
+
+	swidget->private = (void *)src;
+
+	ret = sof_ipc_tx_message(sdev->ipc, src->comp.hdr.cmd, src,
+				 sizeof(*src), r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(src);
+	return ret;
+}
+
+/*
+ * Signal Generator Topology
+ */
+
+static int sof_widget_load_siggen(struct snd_soc_component *scomp, int index,
+				  struct snd_sof_widget *swidget,
+				  struct snd_soc_tplg_dapm_widget *tw,
+				  struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_tone *tone;
+	int ret;
+
+	tone = kzalloc(sizeof(*tone), GFP_KERNEL);
+	if (!tone)
+		return -ENOMEM;
+
+	/* configure mixer IPC message */
+	tone->comp.hdr.size = sizeof(*tone);
+	tone->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	tone->comp.id = swidget->comp_id;
+	tone->comp.type = SOF_COMP_TONE;
+	tone->comp.pipeline_id = index;
+	tone->config.hdr.size = sizeof(tone->config);
+
+	ret = sof_parse_tokens(scomp, tone, tone_tokens,
+			       ARRAY_SIZE(tone_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse tone tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	ret = sof_parse_tokens(scomp, &tone->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse tone.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	dev_dbg(sdev->dev, "tone %s: frequency %d amplitude %d\n",
+		swidget->widget->name, tone->frequency, tone->amplitude);
+	sof_dbg_comp_config(scomp, &tone->config);
+
+	swidget->private = (void *)tone;
+
+	ret = sof_ipc_tx_message(sdev->ipc, tone->comp.hdr.cmd, tone,
+				 sizeof(*tone), r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(tone);
+	return ret;
+}
+
+static int sof_effect_fir_load(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r)
+
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct snd_sof_control *scontrol = NULL;
+	struct snd_soc_dapm_widget *widget = swidget->widget;
+	const struct snd_kcontrol_new *kc = NULL;
+	struct soc_bytes_ext *sbe;
+	struct sof_abi_hdr *pdata = NULL;
+	struct sof_ipc_comp_eq_fir *fir;
+	size_t ipc_size = 0, fir_data_size = 0;
+	int ret;
+
+	/* get possible eq controls */
+	kc = &widget->kcontrol_news[0];
+	if (kc) {
+		sbe = (struct soc_bytes_ext *)kc->private_value;
+		scontrol = sbe->dobj.private;
+	}
+
+	/*
+	 * Check if there's eq parameters in control's private member and set
+	 * data size accordingly. If there's no parameters eq will use defaults
+	 * in firmware (which in this case is passthrough).
+	 */
+	if (scontrol && scontrol->cmd == SOF_CTRL_CMD_BINARY) {
+		pdata = scontrol->control_data->data;
+		if (pdata->size > 0 && pdata->magic == SOF_ABI_MAGIC)
+			fir_data_size = pdata->size;
+	}
+
+	ipc_size = sizeof(struct sof_ipc_comp_eq_fir) +
+		le32_to_cpu(private->size) +
+		fir_data_size;
+
+	fir = kzalloc(ipc_size, GFP_KERNEL);
+	if (!fir)
+		return -ENOMEM;
+
+	/* configure fir IPC message */
+	fir->comp.hdr.size = ipc_size;
+	fir->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	fir->comp.id = swidget->comp_id;
+	fir->comp.type = SOF_COMP_EQ_FIR;
+	fir->comp.pipeline_id = index;
+	fir->config.hdr.size = sizeof(fir->config);
+
+	ret = sof_parse_tokens(scomp, &fir->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse fir.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	sof_dbg_comp_config(scomp, &fir->config);
+
+	/* we have a private data found in control, so copy it */
+	if (fir_data_size > 0) {
+		memcpy(&fir->data, pdata->data, pdata->size);
+		fir->size = fir_data_size;
+	}
+
+	swidget->private = (void *)fir;
+
+	ret = sof_ipc_tx_message(sdev->ipc, fir->comp.hdr.cmd, fir,
+				 ipc_size, r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(fir);
+	return ret;
+}
+
+static int sof_effect_iir_load(struct snd_soc_component *scomp, int index,
+			       struct snd_sof_widget *swidget,
+			       struct snd_soc_tplg_dapm_widget *tw,
+			       struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct snd_soc_dapm_widget *widget = swidget->widget;
+	const struct snd_kcontrol_new *kc = NULL;
+	struct soc_bytes_ext *sbe;
+	struct snd_sof_control *scontrol = NULL;
+	struct sof_abi_hdr *pdata = NULL;
+	struct sof_ipc_comp_eq_iir *iir;
+	size_t ipc_size = 0, iir_data_size = 0;
+	int ret;
+
+	/* get possible eq controls */
+	kc = &widget->kcontrol_news[0];
+	if (kc) {
+		sbe = (struct soc_bytes_ext *)kc->private_value;
+		scontrol = sbe->dobj.private;
+	}
+
+	/*
+	 * Check if there's eq parameters in control's private member and set
+	 * data size accordingly. If there's no parameters eq will use defaults
+	 * in firmware (which in this case is passthrough).
+	 */
+	if (scontrol && scontrol->cmd == SOF_CTRL_CMD_BINARY) {
+		pdata = scontrol->control_data->data;
+		if (pdata->size > 0 && pdata->magic == SOF_ABI_MAGIC)
+			iir_data_size = pdata->size;
+	}
+
+	ipc_size = sizeof(struct sof_ipc_comp_eq_iir) +
+		le32_to_cpu(private->size) +
+		iir_data_size;
+
+	iir = kzalloc(ipc_size, GFP_KERNEL);
+	if (!iir)
+		return -ENOMEM;
+
+	/* configure iir IPC message */
+	iir->comp.hdr.size = ipc_size;
+	iir->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
+	iir->comp.id = swidget->comp_id;
+	iir->comp.type = SOF_COMP_EQ_IIR;
+	iir->comp.pipeline_id = index;
+	iir->config.hdr.size = sizeof(iir->config);
+
+	ret = sof_parse_tokens(scomp, &iir->config, comp_tokens,
+			       ARRAY_SIZE(comp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse iir.cfg tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	sof_dbg_comp_config(scomp, &iir->config);
+
+	/* we have a private data found in control, so copy it */
+	if (iir_data_size > 0) {
+		memcpy(&iir->data, pdata->data, pdata->size);
+		iir->size = iir_data_size;
+	}
+
+	swidget->private = (void *)iir;
+
+	ret = sof_ipc_tx_message(sdev->ipc, iir->comp.hdr.cmd, iir,
+				 ipc_size, r, sizeof(*r));
+	if (ret >= 0)
+		return ret;
+err:
+	kfree(iir);
+	return ret;
+}
+
+/*
+ * Effect Topology
+ */
+
+static int sof_widget_load_effect(struct snd_soc_component *scomp, int index,
+				  struct snd_sof_widget *swidget,
+				  struct snd_soc_tplg_dapm_widget *tw,
+				  struct sof_ipc_comp_reply *r)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &tw->priv;
+	struct sof_ipc_comp_effect config;
+	int ret;
+
+	/* check we have some tokens - we need at least effect type */
+	if (le32_to_cpu(private->size) == 0) {
+		dev_err(sdev->dev, "error: effect tokens not found\n");
+		return -EINVAL;
+	}
+
+	memset(&config, 0, sizeof(config));
+
+	/* get the effect token */
+	ret = sof_parse_tokens(scomp, &config, effect_tokens,
+			       ARRAY_SIZE(effect_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse effect tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	/* now load effect specific data and send IPC */
+	switch (config.type) {
+	case SOF_EFFECT_INTEL_EQFIR:
+		ret = sof_effect_fir_load(scomp, index, swidget, tw, r);
+		break;
+	case SOF_EFFECT_INTEL_EQIIR:
+		ret = sof_effect_iir_load(scomp, index, swidget, tw, r);
+		break;
+	default:
+		dev_err(sdev->dev, "error: invalid effect type %d\n",
+			config.type);
+		ret = -EINVAL;
+		break;
+	}
+
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: effect loading failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/* external widget init - used for any driver specific init */
+static int sof_widget_ready(struct snd_soc_component *scomp, int index,
+			    struct snd_soc_dapm_widget *w,
+			    struct snd_soc_tplg_dapm_widget *tw)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_sof_widget *swidget;
+	struct snd_sof_dai *dai;
+	struct sof_ipc_comp_reply reply;
+	struct snd_sof_control *scontrol = NULL;
+	int ret = 0;
+
+	swidget = kzalloc(sizeof(*swidget), GFP_KERNEL);
+	if (!swidget)
+		return -ENOMEM;
+
+	swidget->sdev = sdev;
+	swidget->widget = w;
+	swidget->comp_id = sdev->next_comp_id++;
+	swidget->complete = 0;
+	swidget->id = w->id;
+	swidget->pipeline_id = index;
+	swidget->private = NULL;
+	memset(&reply, 0, sizeof(reply));
+
+	dev_dbg(sdev->dev, "tplg: ready widget id %d pipe %d type %d name : %s stream %s\n",
+		swidget->comp_id, index, swidget->id, tw->name,
+		strnlen(tw->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0
+			? tw->sname : "none");
+
+	/* handle any special case widgets */
+	switch (w->id) {
+	case snd_soc_dapm_dai_in:
+	case snd_soc_dapm_dai_out:
+		dai = kzalloc(sizeof(*dai), GFP_KERNEL);
+		if (!dai) {
+			kfree(swidget);
+			return -ENOMEM;
+		}
+
+		ret = sof_widget_load_dai(scomp, index, swidget, tw, &reply,
+					  dai);
+		if (ret == 0) {
+			sof_connect_dai_widget(scomp, w, tw, dai);
+			list_add(&dai->list, &sdev->dai_list);
+			swidget->private = dai;
+		} else {
+			kfree(dai);
+		}
+		break;
+	case snd_soc_dapm_mixer:
+		ret = sof_widget_load_mixer(scomp, index, swidget, tw, &reply);
+		break;
+	case snd_soc_dapm_pga:
+		ret = sof_widget_load_pga(scomp, index, swidget, tw, &reply);
+		/* Find scontrol for this pga and set readback offset*/
+		list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
+			if (scontrol->comp_id == swidget->comp_id) {
+				scontrol->readback_offset = reply.offset;
+				break;
+			}
+		}
+		break;
+	case snd_soc_dapm_buffer:
+		ret = sof_widget_load_buffer(scomp, index, swidget, tw, &reply);
+		break;
+	case snd_soc_dapm_scheduler:
+		ret = sof_widget_load_pipeline(scomp, index, swidget, tw,
+					       &reply);
+		break;
+	case snd_soc_dapm_aif_out:
+		ret = sof_widget_load_pcm(scomp, index, swidget,
+					  SOF_IPC_STREAM_CAPTURE, tw, &reply);
+		break;
+	case snd_soc_dapm_aif_in:
+		ret = sof_widget_load_pcm(scomp, index, swidget,
+					  SOF_IPC_STREAM_PLAYBACK, tw, &reply);
+		break;
+	case snd_soc_dapm_src:
+		ret = sof_widget_load_src(scomp, index, swidget, tw, &reply);
+		break;
+	case snd_soc_dapm_siggen:
+		ret = sof_widget_load_siggen(scomp, index, swidget, tw, &reply);
+		break;
+	case snd_soc_dapm_effect:
+		ret = sof_widget_load_effect(scomp, index, swidget, tw, &reply);
+		break;
+	case snd_soc_dapm_mux:
+	case snd_soc_dapm_demux:
+	case snd_soc_dapm_switch:
+	case snd_soc_dapm_dai_link:
+	case snd_soc_dapm_kcontrol:
+	default:
+		dev_warn(sdev->dev, "warning: widget type %d name %s not handled\n",
+			 swidget->id, tw->name);
+		break;
+	}
+
+	/* check IPC reply */
+	if (ret < 0 || reply.rhdr.error < 0) {
+		dev_err(sdev->dev,
+			"error: DSP failed to add widget id %d type %d name : %s stream %s reply %d\n",
+			tw->shift, swidget->id, tw->name,
+			strnlen(tw->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0
+				? tw->sname : "none", reply.rhdr.error);
+		kfree(swidget);
+		return ret;
+	}
+
+	w->dobj.private = swidget;
+	mutex_init(&swidget->mutex);
+	list_add(&swidget->list, &sdev->widget_list);
+	return ret;
+}
+
+static int sof_route_unload(struct snd_soc_component *scomp,
+			    struct snd_soc_dobj *dobj)
+{
+	struct snd_sof_route *sroute;
+
+	sroute = dobj->private;
+	if (!sroute)
+		return 0;
+
+	/* free sroute and its private data */
+	kfree(sroute->private);
+	list_del(&sroute->list);
+	kfree(sroute);
+
+	return 0;
+}
+
+static int sof_widget_unload(struct snd_soc_component *scomp,
+			     struct snd_soc_dobj *dobj)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	const struct snd_kcontrol_new *kc = NULL;
+	struct snd_soc_dapm_widget *widget;
+	struct sof_ipc_pipe_new *pipeline;
+	struct snd_sof_control *scontrol;
+	struct snd_sof_widget *swidget;
+	struct soc_mixer_control *sm;
+	struct snd_sof_dai *dai;
+	int ret = 0;
+
+	swidget = dobj->private;
+	if (!swidget)
+		return 0;
+
+	widget = swidget->widget;
+
+	switch (swidget->id) {
+	case snd_soc_dapm_dai_in:
+	case snd_soc_dapm_dai_out:
+		dai = (struct snd_sof_dai *)swidget->private;
+
+		if (dai) {
+			/* free dai config */
+			kfree(dai->dai_config);
+			list_del(&dai->list);
+		}
+		break;
+	case snd_soc_dapm_scheduler:
+
+		/* power down the pipeline schedule core */
+		pipeline = (struct sof_ipc_pipe_new *)swidget->private;
+		ret = snd_sof_dsp_core_power_down(sdev, 1 << pipeline->core);
+		if (ret < 0)
+			dev_err(sdev->dev, "error: powering down pipeline schedule core %d\n",
+				pipeline->core);
+		break;
+	case snd_soc_dapm_pga:
+
+		/* get volume kcontrol */
+		kc = &widget->kcontrol_news[0];
+		sm = (struct soc_mixer_control *)kc->private_value;
+		scontrol = sm->dobj.private;
+
+		/* free volume table */
+		kfree(scontrol->volume_table);
+		break;
+	default:
+		break;
+	}
+
+	/* free private value */
+	kfree(swidget->private);
+
+	/* remove and free swidget object */
+	list_del(&swidget->list);
+	kfree(swidget);
+
+	return ret;
+}
+
+/*
+ * DAI HW configuration.
+ */
+
+/* FE DAI - used for any driver specific init */
+static int sof_dai_load(struct snd_soc_component *scomp, int index,
+			struct snd_soc_dai_driver *dai_drv,
+			struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_stream_caps *caps;
+	struct snd_sof_pcm *spcm;
+	int stream = SNDRV_PCM_STREAM_PLAYBACK;
+	int ret = 0;
+
+	/* don't need to do anything for BEs atm */
+	if (!pcm)
+		return 0;
+
+	spcm = kzalloc(sizeof(*spcm), GFP_KERNEL);
+	if (!spcm)
+		return -ENOMEM;
+
+	spcm->sdev = sdev;
+	spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].comp_id = COMP_ID_UNASSIGNED;
+	spcm->stream[SNDRV_PCM_STREAM_CAPTURE].comp_id = COMP_ID_UNASSIGNED;
+	if (pcm) {
+		spcm->pcm = *pcm;
+		dev_dbg(sdev->dev, "tplg: load pcm %s\n", pcm->dai_name);
+	}
+	dai_drv->dobj.private = spcm;
+	mutex_init(&spcm->mutex);
+	list_add(&spcm->list, &sdev->pcm_list);
+
+	/* do we need to allocate playback PCM DMA pages */
+	if (!spcm->pcm.playback)
+		goto capture;
+
+	caps = &spcm->pcm.caps[stream];
+
+	/* allocate playback page table buffer */
+	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
+				  PAGE_SIZE, &spcm->stream[stream].page_table);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: can't alloc page table for %s %d\n",
+			caps->name, ret);
+
+		return ret;
+	}
+
+capture:
+	stream = SNDRV_PCM_STREAM_CAPTURE;
+
+	/* do we need to allocate capture PCM DMA pages */
+	if (!spcm->pcm.capture)
+		return ret;
+
+	caps = &spcm->pcm.caps[stream];
+
+	/* allocate capture page table buffer */
+	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
+				  PAGE_SIZE, &spcm->stream[stream].page_table);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: can't alloc page table for %s %d\n",
+			caps->name, ret);
+		goto free_playback_tables;
+	}
+
+	return ret;
+
+free_playback_tables:
+	if (spcm->pcm.playback)
+		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
+
+	return ret;
+}
+
+static int sof_dai_unload(struct snd_soc_component *scomp,
+			  struct snd_soc_dobj *dobj)
+{
+	struct snd_sof_pcm *spcm = dobj->private;
+
+	/* free PCM DMA pages */
+	if (spcm->pcm.playback)
+		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
+
+	if (spcm->pcm.capture)
+		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_CAPTURE].page_table);
+
+	/* remove from list and free spcm */
+	list_del(&spcm->list);
+	kfree(spcm);
+
+	return 0;
+}
+
+static void sof_dai_set_format(struct snd_soc_tplg_hw_config *hw_config,
+			       struct sof_ipc_dai_config *config)
+{
+	/* clock directions wrt codec */
+	if (hw_config->bclk_master == SND_SOC_TPLG_BCLK_CM) {
+		/* codec is bclk master */
+		if (hw_config->fsync_master == SND_SOC_TPLG_FSYNC_CM)
+			config->format |= SOF_DAI_FMT_CBM_CFM;
+		else
+			config->format |= SOF_DAI_FMT_CBM_CFS;
+	} else {
+		/* codec is bclk slave */
+		if (hw_config->fsync_master == SND_SOC_TPLG_FSYNC_CM)
+			config->format |= SOF_DAI_FMT_CBS_CFM;
+		else
+			config->format |= SOF_DAI_FMT_CBS_CFS;
+	}
+
+	/* inverted clocks ? */
+	if (hw_config->invert_bclk) {
+		if (hw_config->invert_fsync)
+			config->format |= SOF_DAI_FMT_IB_IF;
+		else
+			config->format |= SOF_DAI_FMT_IB_NF;
+	} else {
+		if (hw_config->invert_fsync)
+			config->format |= SOF_DAI_FMT_NB_IF;
+		else
+			config->format |= SOF_DAI_FMT_NB_NF;
+	}
+}
+
+/* set config for all DAI's with name matching the link name */
+static int sof_set_dai_config(struct snd_sof_dev *sdev, u32 size,
+			      struct snd_soc_dai_link *link,
+			      struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dai *dai;
+	int found = 0;
+
+	list_for_each_entry(dai, &sdev->dai_list, list) {
+		if (!dai->name)
+			continue;
+
+		if (strcmp(link->name, dai->name) == 0) {
+			dai->dai_config = kmemdup(config, size, GFP_KERNEL);
+			if (!dai->dai_config)
+				return -ENOMEM;
+
+			found = 1;
+		}
+	}
+
+	/*
+	 * machine driver may define a dai link with playback and capture
+	 * dai enabled, but the dai link in topology would support both, one
+	 * or none of them. Here print a warning message to notify user
+	 */
+	if (!found) {
+		dev_warn(sdev->dev, "warning: failed to find dai for dai link %s",
+			 link->name);
+	}
+
+	return 0;
+}
+
+static int sof_link_ssp_load(struct snd_soc_component *scomp, int index,
+			     struct snd_soc_dai_link *link,
+			     struct snd_soc_tplg_link_config *cfg,
+			     struct snd_soc_tplg_hw_config *hw_config,
+			     struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &cfg->priv;
+	struct sof_ipc_reply reply;
+	u32 size = sizeof(*config);
+	int ret;
+
+	/* handle master/slave and inverted clocks */
+	sof_dai_set_format(hw_config, config);
+
+	/* init IPC */
+	memset(&config->ssp, 0, sizeof(struct sof_ipc_dai_ssp_params));
+	config->hdr.size = size;
+
+	ret = sof_parse_tokens(scomp, &config->ssp, ssp_tokens,
+			       ARRAY_SIZE(ssp_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse ssp tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	config->ssp.mclk_rate = le32_to_cpu(hw_config->mclk_rate);
+	config->ssp.bclk_rate = le32_to_cpu(hw_config->bclk_rate);
+	config->ssp.fsync_rate = le32_to_cpu(hw_config->fsync_rate);
+	config->ssp.tdm_slots = le32_to_cpu(hw_config->tdm_slots);
+	config->ssp.tdm_slot_width = le32_to_cpu(hw_config->tdm_slot_width);
+	config->ssp.mclk_direction = hw_config->mclk_direction;
+	config->ssp.rx_slots = le32_to_cpu(hw_config->rx_slots);
+	config->ssp.tx_slots = le32_to_cpu(hw_config->tx_slots);
+
+	dev_dbg(sdev->dev, "tplg: config SSP%d fmt 0x%x mclk %d bclk %d fclk %d width (%d)%d slots %d mclk id %d\n",
+		config->dai_index, config->format,
+		config->ssp.mclk_rate, config->ssp.bclk_rate,
+		config->ssp.fsync_rate, config->ssp.sample_valid_bits,
+		config->ssp.tdm_slot_width, config->ssp.tdm_slots,
+		config->ssp.mclk_id);
+
+	/* send message to DSP */
+	ret = sof_ipc_tx_message(sdev->ipc,
+				 config->hdr.cmd, config, size, &reply,
+				 sizeof(reply));
+
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to set DAI config for SSP%d\n",
+			config->dai_index);
+		return ret;
+	}
+
+	/* set config for all DAI's with name matching the link name */
+	ret = sof_set_dai_config(sdev, size, link, config);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: failed to save DAI config for SSP%d\n",
+			config->dai_index);
+
+	return ret;
+}
+
+static int sof_link_dmic_load(struct snd_soc_component *scomp, int index,
+			      struct snd_soc_dai_link *link,
+			      struct snd_soc_tplg_link_config *cfg,
+			      struct snd_soc_tplg_hw_config *hw_config,
+			      struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &cfg->priv;
+	struct sof_ipc_dai_config *ipc_config;
+	struct sof_ipc_reply reply;
+	struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
+	struct sof_ipc_fw_version *v = &ready->version;
+	u32 size;
+	int ret, j;
+
+	/*
+	 * config is only used for the common params in dmic_params structure
+	 * that does not include the PDM controller config array
+	 * Set the common params to 0.
+	 */
+	memset(&config->dmic, 0, sizeof(struct sof_ipc_dai_dmic_params));
+
+	/* get DMIC tokens */
+	ret = sof_parse_tokens(scomp, &config->dmic, dmic_tokens,
+			       ARRAY_SIZE(dmic_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse dmic tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	/*
+	 * allocate memory for dmic dai config accounting for the
+	 * variable number of active pdm controllers
+	 * This will be the ipc payload for setting dai config
+	 */
+	size = sizeof(*config) + sizeof(struct sof_ipc_dai_dmic_pdm_ctrl) *
+					config->dmic.num_pdm_active;
+
+	ipc_config = kzalloc(size, GFP_KERNEL);
+	if (!ipc_config)
+		return -ENOMEM;
+
+	/* copy the common dai config and dmic params */
+	memcpy(ipc_config, config, sizeof(*config));
+
+	/*
+	 * alloc memory for private member
+	 * Used to track the pdm config array index currently being parsed
+	 */
+	sdev->private = kzalloc(sizeof(u32), GFP_KERNEL);
+	if (!sdev->private) {
+		kfree(ipc_config);
+		return -ENOMEM;
+	}
+
+	/* get DMIC PDM tokens */
+	ret = sof_parse_tokens(scomp, &ipc_config->dmic.pdm[0], dmic_pdm_tokens,
+			       ARRAY_SIZE(dmic_pdm_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse dmic pdm tokens failed %d\n",
+			le32_to_cpu(private->size));
+		goto err;
+	}
+
+	/* set IPC header size */
+	ipc_config->hdr.size = size;
+
+	/* debug messages */
+	dev_dbg(sdev->dev, "tplg: config DMIC%d driver version %d\n",
+		ipc_config->dai_index, ipc_config->dmic.driver_ipc_version);
+	dev_dbg(sdev->dev, "pdmclk_min %d pdm_clkmax %d duty_min %hd\n",
+		ipc_config->dmic.pdmclk_min, ipc_config->dmic.pdmclk_max,
+		ipc_config->dmic.duty_min);
+	dev_dbg(sdev->dev, "duty_max %hd fifo_fs %d num_pdms active %d\n",
+		ipc_config->dmic.duty_max, ipc_config->dmic.fifo_fs,
+		ipc_config->dmic.num_pdm_active);
+	dev_dbg(sdev->dev, "fifo word length %hd\n",
+		ipc_config->dmic.fifo_bits);
+
+	for (j = 0; j < ipc_config->dmic.num_pdm_active; j++) {
+		dev_dbg(sdev->dev, "pdm %hd mic a %hd mic b %hd\n",
+			ipc_config->dmic.pdm[j].id,
+			ipc_config->dmic.pdm[j].enable_mic_a,
+			ipc_config->dmic.pdm[j].enable_mic_b);
+		dev_dbg(sdev->dev, "pdm %hd polarity a %hd polarity b %hd\n",
+			ipc_config->dmic.pdm[j].id,
+			ipc_config->dmic.pdm[j].polarity_mic_a,
+			ipc_config->dmic.pdm[j].polarity_mic_b);
+		dev_dbg(sdev->dev, "pdm %hd clk_edge %hd skew %hd\n",
+			ipc_config->dmic.pdm[j].id,
+			ipc_config->dmic.pdm[j].clk_edge,
+			ipc_config->dmic.pdm[j].skew);
+	}
+
+	if (SOF_ABI_VER(v->major, v->minor, v->micro) < SOF_ABI_VER(3, 0, 1)) {
+		/* this takes care of backwards compatible handling of fifo_bits_b */
+		ipc_config->dmic.reserved_2 = ipc_config->dmic.fifo_bits;
+	}
+
+	/* send message to DSP */
+	ret = sof_ipc_tx_message(sdev->ipc,
+				 ipc_config->hdr.cmd, ipc_config, size, &reply,
+				 sizeof(reply));
+
+	if (ret < 0) {
+		dev_err(sdev->dev,
+			"error: failed to set DAI config for DMIC%d\n",
+			config->dai_index);
+		goto err;
+	}
+
+	/* set config for all DAI's with name matching the link name */
+	ret = sof_set_dai_config(sdev, size, link, ipc_config);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: failed to save DAI config for DMIC%d\n",
+			config->dai_index);
+
+err:
+	kfree(sdev->private);
+	kfree(ipc_config);
+
+	return ret;
+}
+
+/*
+ * for hda link, playback and capture are supported by different dai
+ * in FW. Here get the dai_index, set dma channel of each dai
+ * and send config to FW. In FW, each dai sets config by dai_index
+ */
+static int sof_link_hda_process(struct snd_sof_dev *sdev,
+				struct snd_soc_dai_link *link,
+				struct sof_ipc_dai_config *config,
+				int tx_slot,
+				int rx_slot)
+{
+	struct sof_ipc_reply reply;
+	u32 size = sizeof(*config);
+	struct snd_sof_dai *sof_dai;
+	int found = 0;
+	int ret;
+
+	list_for_each_entry(sof_dai, &sdev->dai_list, list) {
+		if (!sof_dai->name)
+			continue;
+
+		if (strcmp(link->name, sof_dai->name) == 0) {
+			if (sof_dai->comp_dai.direction ==
+			    SNDRV_PCM_STREAM_PLAYBACK) {
+				if (!link->dpcm_playback)
+					return -EINVAL;
+
+				config->hda.link_dma_ch = tx_slot;
+			} else {
+				if (!link->dpcm_capture)
+					return -EINVAL;
+
+				config->hda.link_dma_ch = rx_slot;
+			}
+
+			config->dai_index = sof_dai->comp_dai.dai_index;
+			found = 1;
+
+			/* save config in dai component */
+			sof_dai->dai_config = kmemdup(config, size, GFP_KERNEL);
+			if (!sof_dai->dai_config)
+				return -ENOMEM;
+
+			/* send message to DSP */
+			ret = sof_ipc_tx_message(sdev->ipc,
+						 config->hdr.cmd, config, size,
+						 &reply, sizeof(reply));
+
+			if (ret < 0) {
+				dev_err(sdev->dev, "error: failed to set DAI config for direction:%d of HDA dai %d\n",
+					sof_dai->comp_dai.direction,
+					config->dai_index);
+
+				return ret;
+			}
+		}
+	}
+
+	/*
+	 * machine driver may define a dai link with playback and capture
+	 * dai enabled, but the dai link in topology would support both, one
+	 * or none of them. Here print a warning message to notify user
+	 */
+	if (!found) {
+		dev_warn(sdev->dev, "warning: failed to find dai for dai link %s",
+			 link->name);
+	}
+
+	return 0;
+}
+
+static int sof_link_hda_load(struct snd_soc_component *scomp, int index,
+			     struct snd_soc_dai_link *link,
+			     struct snd_soc_tplg_link_config *cfg,
+			     struct snd_soc_tplg_hw_config *hw_config,
+			     struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_dai_link_component dai_component;
+	struct snd_soc_tplg_private *private = &cfg->priv;
+	struct snd_soc_dai *dai;
+	u32 size = sizeof(*config);
+	u32 tx_num = 0;
+	u32 tx_slot = 0;
+	u32 rx_num = 0;
+	u32 rx_slot = 0;
+	int ret;
+
+	/* init IPC */
+	memset(&dai_component, 0, sizeof(dai_component));
+	memset(&config->hda, 0, sizeof(struct sof_ipc_dai_hda_params));
+	config->hdr.size = size;
+
+	/* get any bespoke DAI tokens */
+	ret = sof_parse_tokens(scomp, config, hda_tokens,
+			       ARRAY_SIZE(hda_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse hda tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	dai_component.dai_name = link->cpu_dai_name;
+	dai = snd_soc_find_dai(&dai_component);
+	if (!dai) {
+		dev_err(sdev->dev, "error: failed to find dai %s in %s",
+			dai_component.dai_name, __func__);
+		return -EINVAL;
+	}
+
+	if (link->dpcm_playback)
+		tx_num = 1;
+
+	if (link->dpcm_capture)
+		rx_num = 1;
+
+	ret = snd_soc_dai_get_channel_map(dai, &tx_num, &tx_slot,
+					  &rx_num, &rx_slot);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to get dma channel for HDA%d\n",
+			config->dai_index);
+
+		return ret;
+	}
+
+	ret = sof_link_hda_process(sdev, link, config, tx_slot, rx_slot);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: failed to process hda dai link %s",
+			link->name);
+
+	return ret;
+}
+
+/* DAI link - used for any driver specific init */
+static int sof_link_load(struct snd_soc_component *scomp, int index,
+			 struct snd_soc_dai_link *link,
+			 struct snd_soc_tplg_link_config *cfg)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &cfg->priv;
+	struct sof_ipc_dai_config config;
+	struct snd_soc_tplg_hw_config *hw_config;
+	int ret = 0;
+
+	link->platform_name = dev_name(sdev->dev);
+
+	/*
+	 * Set nonatomic property for FE dai links as their trigger action
+	 * involves IPC's.
+	 */
+	if (!link->no_pcm) {
+		link->nonatomic = true;
+
+		/* nothing more to do for FE dai links */
+		return 0;
+	}
+
+	/* check we have some tokens - we need at least DAI type */
+	if (le32_to_cpu(private->size) == 0) {
+		dev_err(sdev->dev, "error: expected tokens for DAI, none found\n");
+		return -EINVAL;
+	}
+
+	/* Send BE DAI link configurations to DSP */
+	memset(&config, 0, sizeof(config));
+
+	/* get any common DAI tokens */
+	ret = sof_parse_tokens(scomp, &config, dai_link_tokens,
+			       ARRAY_SIZE(dai_link_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(sdev->dev, "error: parse link tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	/*
+	 * DAI links are expected to have at least 1 hw_config.
+	 * But some older topologies might have no hw_config for HDA dai links.
+	 */
+	if (!le32_to_cpu(cfg->num_hw_configs) &&
+	    config.type != SOF_DAI_INTEL_HDA) {
+		dev_err(sdev->dev, "error: unexpected DAI config count %d!\n",
+			le32_to_cpu(cfg->num_hw_configs));
+		return -EINVAL;
+	}
+
+	/* configure dai IPC message */
+	hw_config = &cfg->hw_config[0];
+
+	config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG;
+	config.format = le32_to_cpu(hw_config->fmt);
+
+	/* now load DAI specific data and send IPC - type comes from token */
+	switch (config.type) {
+	case SOF_DAI_INTEL_SSP:
+		ret = sof_link_ssp_load(scomp, index, link, cfg, hw_config,
+					&config);
+		break;
+	case SOF_DAI_INTEL_DMIC:
+		ret = sof_link_dmic_load(scomp, index, link, cfg, hw_config,
+					 &config);
+		break;
+	case SOF_DAI_INTEL_HDA:
+		ret = sof_link_hda_load(scomp, index, link, cfg, hw_config,
+					&config);
+		break;
+	default:
+		dev_err(sdev->dev, "error: invalid DAI type %d\n", config.type);
+		ret = -EINVAL;
+		break;
+	}
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int sof_link_hda_unload(struct snd_sof_dev *sdev,
+			       struct snd_soc_dai_link *link)
+{
+	struct snd_soc_dai_link_component dai_component;
+	struct snd_soc_dai *dai;
+	int ret = 0;
+
+	memset(&dai_component, 0, sizeof(dai_component));
+	dai_component.dai_name = link->cpu_dai_name;
+	dai = snd_soc_find_dai(&dai_component);
+	if (!dai) {
+		dev_err(sdev->dev, "error: failed to find dai %s in %s",
+			dai_component.dai_name, __func__);
+		return -EINVAL;
+	}
+
+	/*
+	 * FIXME: this call to hw_free is mainly to release the link DMA ID.
+	 * This is abusing the API and handling SOC internals is not
+	 * recommended. This part will be reworked.
+	 */
+	if (dai->driver->ops->hw_free)
+		ret = dai->driver->ops->hw_free(NULL, dai);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: failed to free hda resource for %s\n",
+			link->name);
+
+	return ret;
+}
+
+static int sof_link_unload(struct snd_soc_component *scomp,
+			   struct snd_soc_dobj *dobj)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_dai_link *link =
+		container_of(dobj, struct snd_soc_dai_link, dobj);
+
+	struct snd_sof_dai *sof_dai = NULL;
+	int ret = 0;
+
+	/* only BE link is loaded by sof */
+	if (!link->no_pcm)
+		return 0;
+
+	list_for_each_entry(sof_dai, &sdev->dai_list, list) {
+		if (!sof_dai->name)
+			continue;
+
+		if (strcmp(link->name, sof_dai->name) == 0)
+			goto found;
+	}
+
+	dev_err(sdev->dev, "error: failed to find dai %s in %s",
+		link->name, __func__);
+	return -EINVAL;
+found:
+
+	switch (sof_dai->dai_config->type) {
+	case SOF_DAI_INTEL_SSP:
+	case SOF_DAI_INTEL_DMIC:
+		/* no resource needs to be released for SSP and DMIC */
+		break;
+	case SOF_DAI_INTEL_HDA:
+		ret = sof_link_hda_unload(sdev, link);
+		break;
+	default:
+		dev_err(sdev->dev, "error: invalid DAI type %d\n",
+			sof_dai->dai_config->type);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+/* bind PCM ID to host component ID */
+static int spcm_bind(struct snd_soc_component *scomp, struct snd_sof_pcm *spcm,
+		     const char *host)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_sof_widget *host_widget;
+
+	host_widget = snd_sof_find_swidget(sdev, (char *)host);
+	if (!host_widget) {
+		dev_err(sdev->dev, "error: can't find host component %s\n",
+			host);
+		return -ENODEV;
+	}
+
+	switch (host_widget->id) {
+	case snd_soc_dapm_aif_in:
+		spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].comp_id =
+			host_widget->comp_id;
+		break;
+	case snd_soc_dapm_aif_out:
+		spcm->stream[SNDRV_PCM_STREAM_CAPTURE].comp_id =
+			host_widget->comp_id;
+		break;
+	default:
+		dev_err(sdev->dev, "error: host is wrong type %d\n",
+			host_widget->id);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* DAI link - used for any driver specific init */
+static int sof_route_load(struct snd_soc_component *scomp, int index,
+			  struct snd_soc_dapm_route *route)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct sof_ipc_pipe_comp_connect *connect;
+	struct snd_sof_widget *source_swidget, *sink_swidget;
+	struct snd_soc_dobj *dobj = &route->dobj;
+	struct snd_sof_pcm *spcm;
+	struct snd_sof_route *sroute;
+	struct sof_ipc_reply reply;
+	int ret = 0;
+
+	/* allocate memory for sroute and connect */
+	sroute = kzalloc(sizeof(*sroute), GFP_KERNEL);
+	if (!sroute)
+		return -ENOMEM;
+
+	sroute->sdev = sdev;
+
+	connect = kzalloc(sizeof(*connect), GFP_KERNEL);
+	if (!connect) {
+		kfree(sroute);
+		return -ENOMEM;
+	}
+
+	connect->hdr.size = sizeof(*connect);
+	connect->hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_CONNECT;
+
+	dev_dbg(sdev->dev, "sink %s control %s source %s\n",
+		route->sink, route->control ? route->control : "none",
+		route->source);
+
+	/* source component */
+	source_swidget = snd_sof_find_swidget(sdev, (char *)route->source);
+	if (!source_swidget) {
+		/* don't send any routes to DSP that include a driver PCM */
+		spcm = snd_sof_find_spcm_name(sdev, (char *)route->source);
+		if (spcm) {
+			ret = spcm_bind(scomp, spcm, route->sink);
+			goto err;
+		}
+
+		dev_err(sdev->dev, "error: source %s not found\n",
+			route->source);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	connect->source_id = source_swidget->comp_id;
+
+	/* sink component */
+	sink_swidget = snd_sof_find_swidget(sdev, (char *)route->sink);
+	if (!sink_swidget) {
+		/* don't send any routes to DSP that include a driver PCM */
+		spcm = snd_sof_find_spcm_name(sdev, (char *)route->sink);
+		if (spcm) {
+			ret = spcm_bind(scomp, spcm, route->source);
+			goto err;
+		}
+
+		dev_err(sdev->dev, "error: sink %s not found\n",
+			route->sink);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	connect->sink_id = sink_swidget->comp_id;
+
+	/*
+	 * Some virtual routes and widgets may been added in topology for
+	 * compatibility. For virtual routes, both sink and source are not
+	 * buffer. Since only buffer linked to component is supported by
+	 * FW, others are reported as error, add check in route function,
+	 * do not send it to FW when both source and sink are not buffer
+	 */
+	if (source_swidget->id != snd_soc_dapm_buffer &&
+	    sink_swidget->id != snd_soc_dapm_buffer) {
+		dev_dbg(sdev->dev, "warning: neither Linked source component %s nor sink component %s is of buffer type, ignoring link\n",
+			route->source, route->sink);
+		ret = 0;
+		goto err;
+	} else {
+		ret = sof_ipc_tx_message(sdev->ipc,
+					 connect->hdr.cmd,
+					 connect, sizeof(*connect),
+					 &reply, sizeof(reply));
+
+		/* check IPC return value */
+		if (ret < 0) {
+			dev_err(sdev->dev, "error: failed to add route sink %s control %s source %s\n",
+				route->sink,
+				route->control ? route->control : "none",
+				route->source);
+			goto err;
+		}
+
+		/* check IPC reply */
+		if (reply.error < 0) {
+			dev_err(sdev->dev, "error: DSP failed to add route sink %s control %s source %s result %d\n",
+				route->sink,
+				route->control ? route->control : "none",
+				route->source, reply.error);
+			ret = reply.error;
+			goto err;
+		}
+
+		sroute->route = route;
+		dobj->private = sroute;
+		sroute->private = connect;
+
+		/* add route to route list */
+		list_add(&sroute->list, &sdev->route_list);
+
+		return ret;
+	}
+
+err:
+	kfree(connect);
+	kfree(sroute);
+	return ret;
+}
+
+int snd_sof_complete_pipeline(struct snd_sof_dev *sdev,
+			      struct snd_sof_widget *swidget)
+{
+	struct sof_ipc_pipe_ready ready;
+	struct sof_ipc_reply reply;
+	int ret;
+
+	dev_dbg(sdev->dev, "tplg: complete pipeline %s id %d\n",
+		swidget->widget->name, swidget->comp_id);
+
+	memset(&ready, 0, sizeof(ready));
+	ready.hdr.size = sizeof(ready);
+	ready.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_PIPE_COMPLETE;
+	ready.comp_id = swidget->comp_id;
+
+	ret = sof_ipc_tx_message(sdev->ipc,
+				 ready.hdr.cmd, &ready, sizeof(ready), &reply,
+				 sizeof(reply));
+	if (ret < 0)
+		return ret;
+	return 1;
+}
+
+/* completion - called at completion of firmware loading */
+static void sof_complete(struct snd_soc_component *scomp)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_sof_widget *swidget;
+
+	/* some widget types require completion notificattion */
+	list_for_each_entry(swidget, &sdev->widget_list, list) {
+		if (swidget->complete)
+			continue;
+
+		switch (swidget->id) {
+		case snd_soc_dapm_scheduler:
+			swidget->complete =
+				snd_sof_complete_pipeline(sdev, swidget);
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+/* manifest - optional to inform component of manifest */
+static int sof_manifest(struct snd_soc_component *scomp, int index,
+			struct snd_soc_tplg_manifest *man)
+{
+	/* not currently parsed */
+	return 0;
+}
+
+/* vendor specific kcontrol handlers available for binding */
+static const struct snd_soc_tplg_kcontrol_ops sof_io_ops[] = {
+	{SOF_TPLG_KCTL_VOL_ID, snd_sof_volume_get, snd_sof_volume_put},
+	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_get, snd_sof_bytes_put},
+};
+
+/* vendor specific bytes ext handlers available for binding */
+static const struct snd_soc_tplg_bytes_ext_ops sof_bytes_ext_ops[] = {
+	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_ext_get, snd_sof_bytes_ext_put},
+};
+
+static struct snd_soc_tplg_ops sof_tplg_ops = {
+	/* external kcontrol init - used for any driver specific init */
+	.control_load	= sof_control_load,
+	.control_unload	= sof_control_unload,
+
+	/* external kcontrol init - used for any driver specific init */
+	.dapm_route_load	= sof_route_load,
+	.dapm_route_unload	= sof_route_unload,
+
+	/* external widget init - used for any driver specific init */
+	/* .widget_load is not currently used */
+	.widget_ready	= sof_widget_ready,
+	.widget_unload	= sof_widget_unload,
+
+	/* FE DAI - used for any driver specific init */
+	.dai_load	= sof_dai_load,
+	.dai_unload	= sof_dai_unload,
+
+	/* DAI link - used for any driver specific init */
+	.link_load	= sof_link_load,
+	.link_unload	= sof_link_unload,
+
+	/* completion - called at completion of firmware loading */
+	.complete	= sof_complete,
+
+	/* manifest - optional to inform component of manifest */
+	.manifest	= sof_manifest,
+
+	/* vendor specific kcontrol handlers available for binding */
+	.io_ops		= sof_io_ops,
+	.io_ops_count	= ARRAY_SIZE(sof_io_ops),
+
+	/* vendor specific bytes ext handlers available for binding */
+	.bytes_ext_ops	= sof_bytes_ext_ops,
+	.bytes_ext_ops_count	= ARRAY_SIZE(sof_bytes_ext_ops),
+};
+
+int snd_sof_init_topology(struct snd_sof_dev *sdev,
+			  struct snd_soc_tplg_ops *ops)
+{
+	/* TODO: support linked list of topologies */
+	sdev->tplg_ops = ops;
+	return 0;
+}
+EXPORT_SYMBOL(snd_sof_init_topology);
+
+int snd_sof_load_topology(struct snd_sof_dev *sdev, const char *file)
+{
+	const struct firmware *fw;
+	int ret;
+
+	dev_dbg(sdev->dev, "loading topology:%s\n", file);
+
+	ret = request_firmware(&fw, file, sdev->dev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: tplg request firmware %s failed err: %d\n",
+			file, ret);
+		return ret;
+	}
+
+	ret = snd_soc_tplg_component_load(sdev->component,
+					  &sof_tplg_ops, fw,
+					  SND_SOC_TPLG_INDEX_ALL);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: tplg component load failed %d\n",
+			ret);
+		ret = -EINVAL;
+	}
+
+	release_firmware(fw);
+	return ret;
+}
+EXPORT_SYMBOL(snd_sof_load_topology);
-- 
2.17.1


    