// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2020 Intel Corporation
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
//

#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include <uapi/sound/tlv.h>
#include "core.h"
#include "messages.h"

struct catpt_stream_template {
	enum catpt_path_id path_id;
	enum catpt_stream_type type;
	u32 persistent_size;
	u8 num_entries;
	struct catpt_module_entry entries[];
};

static struct catpt_stream_template system_pb = {
	.path_id = CATPT_PATH_SSP0_OUT,
	.type = CATPT_STRM_TYPE_SYSTEM,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_PCM_SYSTEM, 0 }},
};

static struct catpt_stream_template system_cp = {
	.path_id = CATPT_PATH_SSP0_IN,
	.type = CATPT_STRM_TYPE_CAPTURE,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_PCM_CAPTURE, 0 }},
};

static struct catpt_stream_template offload_pb = {
	.path_id = CATPT_PATH_SSP0_OUT,
	.type = CATPT_STRM_TYPE_RENDER,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_PCM, 0 }},
};

static struct catpt_stream_template loopback_cp = {
	.path_id = CATPT_PATH_SSP0_OUT,
	.type = CATPT_STRM_TYPE_LOOPBACK,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_PCM_REFERENCE, 0 }},
};

static struct catpt_stream_template bluetooth_pb = {
	.path_id = CATPT_PATH_SSP1_OUT,
	.type = CATPT_STRM_TYPE_BLUETOOTH_RENDER,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_BLUETOOTH_RENDER, 0 }},
};

static struct catpt_stream_template bluetooth_cp = {
	.path_id = CATPT_PATH_SSP1_IN,
	.type = CATPT_STRM_TYPE_BLUETOOTH_CAPTURE,
	.num_entries = 1,
	.entries = {{ CATPT_MODID_BLUETOOTH_CAPTURE, 0 }},
};

static struct catpt_stream_template *catpt_topology[] = {
	[CATPT_STRM_TYPE_RENDER]		= &offload_pb,
	[CATPT_STRM_TYPE_SYSTEM]		= &system_pb,
	[CATPT_STRM_TYPE_CAPTURE]		= &system_cp,
	[CATPT_STRM_TYPE_LOOPBACK]		= &loopback_cp,
	[CATPT_STRM_TYPE_BLUETOOTH_RENDER]	= &bluetooth_pb,
	[CATPT_STRM_TYPE_BLUETOOTH_CAPTURE]	= &bluetooth_cp,
};

static struct catpt_stream_template *
catpt_get_stream_template(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtm = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtm, 0);
	enum catpt_stream_type type;

	type = cpu_dai->driver->id;

	/* account for capture in bidirectional dais */
	switch (type) {
	case CATPT_STRM_TYPE_SYSTEM:
		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
			type = CATPT_STRM_TYPE_CAPTURE;
		break;
	case CATPT_STRM_TYPE_BLUETOOTH_RENDER:
		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
			type = CATPT_STRM_TYPE_BLUETOOTH_CAPTURE;
		break;
	default:
		break;
	}

	return catpt_topology[type];
}

struct catpt_stream_runtime *
catpt_stream_find(struct catpt_dev *cdev, u8 stream_hw_id)
{
	struct catpt_stream_runtime *pos, *result = NULL;

	spin_lock(&cdev->list_lock);
	list_for_each_entry(pos, &cdev->stream_list, node) {
		if (pos->info.stream_hw_id == stream_hw_id) {
			result = pos;
			break;
		}
	}

	spin_unlock(&cdev->list_lock);
	return result;
}

static u32 catpt_stream_read_position(struct catpt_dev *cdev,
				      struct catpt_stream_runtime *stream)
{
	u32 pos;

	memcpy_fromio(&pos, cdev->lpe_ba + stream->info.read_pos_regaddr,
		      sizeof(pos));
	return pos;
}

static u32 catpt_stream_volume(struct catpt_dev *cdev,
			       struct catpt_stream_runtime *stream, u32 channel)
{
	u32 volume, offset;

	if (channel >= CATPT_CHANNELS_MAX)
		channel = 0;

	offset = stream->info.volume_regaddr[channel];
	memcpy_fromio(&volume, cdev->lpe_ba + offset, sizeof(volume));
	return volume;
}

static u32 catpt_mixer_volume(struct catpt_dev *cdev,
			      struct catpt_mixer_stream_info *info, u32 channel)
{
	u32 volume, offset;

	if (channel >= CATPT_CHANNELS_MAX)
		channel = 0;

	offset = info->volume_regaddr[channel];
	memcpy_fromio(&volume, cdev->lpe_ba + offset, sizeof(volume));
	return volume;
}

static void catpt_arrange_page_table(struct snd_pcm_substream *substream,
				     struct snd_dma_buffer *pgtbl)
{
	struct snd_pcm_runtime *rtm = substream->runtime;
	struct snd_dma_buffer *databuf = snd_pcm_get_dma_buf(substream);
	int i, pages;

	pages = snd_sgbuf_aligned_pages(rtm->dma_bytes);

	for (i = 0; i < pages; i++) {
		u32 pfn, offset;
		u32 *page_table;

		pfn = PFN_DOWN(snd_sgbuf_get_addr(databuf, i * PAGE_SIZE));
		/* incrementing by 2 on even and 3 on odd */
		offset = ((i << 2) + i) >> 1;
		page_table = (u32 *)(pgtbl->area + offset);

		if (i & 1)
			*page_table |= (pfn << 4);
		else
			*page_table |= pfn;
	}
}

static u32 catpt_get_channel_map(enum catpt_channel_config config)
{
	switch (config) {
	case CATPT_CHANNEL_CONFIG_MONO:
		return GENMASK(31, 4) | CATPT_CHANNEL_CENTER;

	case CATPT_CHANNEL_CONFIG_STEREO:
		return GENMASK(31, 8) | CATPT_CHANNEL_LEFT
				      | (CATPT_CHANNEL_RIGHT << 4);

	case CATPT_CHANNEL_CONFIG_2_POINT_1:
		return GENMASK(31, 12) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_RIGHT << 4)
				       | (CATPT_CHANNEL_LFE << 8);

	case CATPT_CHANNEL_CONFIG_3_POINT_0:
		return GENMASK(31, 12) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_CENTER << 4)
				       | (CATPT_CHANNEL_RIGHT << 8);

	case CATPT_CHANNEL_CONFIG_3_POINT_1:
		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_CENTER << 4)
				       | (CATPT_CHANNEL_RIGHT << 8)
				       | (CATPT_CHANNEL_LFE << 12);

	case CATPT_CHANNEL_CONFIG_QUATRO:
		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_RIGHT << 4)
				       | (CATPT_CHANNEL_LEFT_SURROUND << 8)
				       | (CATPT_CHANNEL_RIGHT_SURROUND << 12);

	case CATPT_CHANNEL_CONFIG_4_POINT_0:
		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_CENTER << 4)
				       | (CATPT_CHANNEL_RIGHT << 8)
				       | (CATPT_CHANNEL_CENTER_SURROUND << 12);

	case CATPT_CHANNEL_CONFIG_5_POINT_0:
		return GENMASK(31, 20) | CATPT_CHANNEL_LEFT
				       | (CATPT_CHANNEL_CENTER << 4)
				       | (CATPT_CHANNEL_RIGHT << 8)
				       | (CATPT_CHANNEL_LEFT_SURROUND << 12)
				       | (CATPT_CHANNEL_RIGHT_SURROUND << 16);

	case CATPT_CHANNEL_CONFIG_5_POINT_1:
		return GENMASK(31, 24) | CATPT_CHANNEL_CENTER
				       | (CATPT_CHANNEL_LEFT << 4)
				       | (CATPT_CHANNEL_RIGHT << 8)
				       | (CATPT_CHANNEL_LEFT_SURROUND << 12)
				       | (CATPT_CHANNEL_RIGHT_SURROUND << 16)
				       | (CATPT_CHANNEL_LFE << 20);

	case CATPT_CHANNEL_CONFIG_DUAL_MONO:
		return GENMASK(31, 8) | CATPT_CHANNEL_LEFT
				      | (CATPT_CHANNEL_LEFT << 4);

	default:
		return U32_MAX;
	}
}

static enum catpt_channel_config catpt_get_channel_config(u32 num_channels)
{
	switch (num_channels) {
	case 6:
		return CATPT_CHANNEL_CONFIG_5_POINT_1;
	case 5:
		return CATPT_CHANNEL_CONFIG_5_POINT_0;
	case 4:
		return CATPT_CHANNEL_CONFIG_QUATRO;
	case 3:
		return CATPT_CHANNEL_CONFIG_2_POINT_1;
	case 1:
		return CATPT_CHANNEL_CONFIG_MONO;
	case 2:
	default:
		return CATPT_CHANNEL_CONFIG_STEREO;
	}
}

static int catpt_dai_startup(struct snd_pcm_substream *substream,
			     struct snd_soc_dai *dai)
{
	struct catpt_stream_template *template;
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	struct resource *res;
	int ret;

	template = catpt_get_stream_template(substream);

	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
	if (!stream)
		return -ENOMEM;

	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, cdev->dev, PAGE_SIZE,
				  &stream->pgtbl);
	if (ret)
		goto err_pgtbl;

	res = catpt_request_region(&cdev->dram, template->persistent_size);
	if (!res) {
		ret = -EBUSY;
		goto err_request;
	}

	catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);

	stream->template = template;
	stream->persistent = res;
	stream->substream = substream;
	INIT_LIST_HEAD(&stream->node);
	snd_soc_dai_set_dma_data(dai, substream, stream);

	spin_lock(&cdev->list_lock);
	list_add_tail(&stream->node, &cdev->stream_list);
	spin_unlock(&cdev->list_lock);

	return 0;

err_request:
	snd_dma_free_pages(&stream->pgtbl);
err_pgtbl:
	kfree(stream);
	return ret;
}

static void catpt_dai_shutdown(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);

	stream = snd_soc_dai_get_dma_data(dai, substream);

	spin_lock(&cdev->list_lock);
	list_del(&stream->node);
	spin_unlock(&cdev->list_lock);

	release_resource(stream->persistent);
	kfree(stream->persistent);
	catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);

	snd_dma_free_pages(&stream->pgtbl);
	kfree(stream);
	snd_soc_dai_set_dma_data(dai, substream, NULL);
}

static int catpt_set_dspvol(struct catpt_dev *cdev, u8 stream_id, long *ctlvol);

static int catpt_dai_apply_usettings(struct snd_soc_dai *dai,
				     struct catpt_stream_runtime *stream)
{
	struct snd_soc_component *component = dai->component;
	struct snd_kcontrol *pos;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	const char *name;
	int ret;
	u32 id = stream->info.stream_hw_id;

	/* only selected streams have individual controls */
	switch (id) {
	case CATPT_PIN_ID_OFFLOAD1:
		name = "Media0 Playback Volume";
		break;
	case CATPT_PIN_ID_OFFLOAD2:
		name = "Media1 Playback Volume";
		break;
	case CATPT_PIN_ID_CAPTURE1:
		name = "Mic Capture Volume";
		break;
	case CATPT_PIN_ID_REFERENCE:
		name = "Loopback Mute";
		break;
	default:
		return 0;
	}

	list_for_each_entry(pos, &component->card->snd_card->controls, list) {
		if (pos->private_data == component &&
		    !strncmp(name, pos->id.name, sizeof(pos->id.name)))
			break;
	}
	if (list_entry_is_head(pos, &component->card->snd_card->controls, list))
		return -ENOENT;

	if (stream->template->type != CATPT_STRM_TYPE_LOOPBACK)
		return catpt_set_dspvol(cdev, id, (long *)pos->private_value);
	ret = catpt_ipc_mute_loopback(cdev, id, *(bool *)pos->private_value);
	if (ret)
		return CATPT_IPC_ERROR(ret);
	return 0;
}

static int catpt_dai_hw_params(struct snd_pcm_substream *substream,
			       struct snd_pcm_hw_params *params,
			       struct snd_soc_dai *dai)
{
	struct snd_pcm_runtime *rtm = substream->runtime;
	struct snd_dma_buffer *dmab;
	struct catpt_stream_runtime *stream;
	struct catpt_audio_format afmt;
	struct catpt_ring_info rinfo;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	int ret;

	stream = snd_soc_dai_get_dma_data(dai, substream);
	if (stream->allocated)
		return 0;

	memset(&afmt, 0, sizeof(afmt));
	afmt.sample_rate = params_rate(params);
	afmt.bit_depth = params_physical_width(params);
	afmt.valid_bit_depth = params_width(params);
	afmt.num_channels = params_channels(params);
	afmt.channel_config = catpt_get_channel_config(afmt.num_channels);
	afmt.channel_map = catpt_get_channel_map(afmt.channel_config);
	afmt.interleaving = CATPT_INTERLEAVING_PER_CHANNEL;

	dmab = snd_pcm_get_dma_buf(substream);
	catpt_arrange_page_table(substream, &stream->pgtbl);

	memset(&rinfo, 0, sizeof(rinfo));
	rinfo.page_table_addr = stream->pgtbl.addr;
	rinfo.num_pages = DIV_ROUND_UP(rtm->dma_bytes, PAGE_SIZE);
	rinfo.size = rtm->dma_bytes;
	rinfo.offset = 0;
	rinfo.ring_first_page_pfn = PFN_DOWN(snd_sgbuf_get_addr(dmab, 0));

	ret = catpt_ipc_alloc_stream(cdev, stream->template->path_id,
				     stream->template->type,
				     &afmt, &rinfo,
				     stream->template->num_entries,
				     stream->template->entries,
				     stream->persistent,
				     cdev->scratch,
				     &stream->info);
	if (ret)
		return CATPT_IPC_ERROR(ret);

	ret = catpt_dai_apply_usettings(dai, stream);
	if (ret) {
		catpt_ipc_free_stream(cdev, stream->info.stream_hw_id);
		return ret;
	}

	stream->allocated = true;
	return 0;
}

static int catpt_dai_hw_free(struct snd_pcm_substream *substream,
			     struct snd_soc_dai *dai)
{
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);

	stream = snd_soc_dai_get_dma_data(dai, substream);
	if (!stream->allocated)
		return 0;

	catpt_ipc_reset_stream(cdev, stream->info.stream_hw_id);
	catpt_ipc_free_stream(cdev, stream->info.stream_hw_id);

	stream->allocated = false;
	return 0;
}

static int catpt_dai_prepare(struct snd_pcm_substream *substream,
			     struct snd_soc_dai *dai)
{
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	int ret;

	stream = snd_soc_dai_get_dma_data(dai, substream);
	if (stream->prepared)
		return 0;

	ret = catpt_ipc_reset_stream(cdev, stream->info.stream_hw_id);
	if (ret)
		return CATPT_IPC_ERROR(ret);

	ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id);
	if (ret)
		return CATPT_IPC_ERROR(ret);

	stream->prepared = true;
	return 0;
}

static int catpt_dai_trigger(struct snd_pcm_substream *substream, int cmd,
			     struct snd_soc_dai *dai)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	snd_pcm_uframes_t pos;
	int ret;

	stream = snd_soc_dai_get_dma_data(dai, substream);

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		/* only offload is set_write_pos driven */
		if (stream->template->type != CATPT_STRM_TYPE_RENDER)
			goto resume_stream;

		pos = frames_to_bytes(runtime, runtime->start_threshold);
		/*
		 * Dsp operates on buffer halves, thus max 2x set_write_pos
		 * (entire buffer filled) prior to stream start.
		 */
		ret = catpt_ipc_set_write_pos(cdev, stream->info.stream_hw_id,
					      pos, false, false);
		if (ret)
			return CATPT_IPC_ERROR(ret);
		fallthrough;
	case SNDRV_PCM_TRIGGER_RESUME:
	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
	resume_stream:
		catpt_dsp_update_lpclock(cdev);
		ret = catpt_ipc_resume_stream(cdev, stream->info.stream_hw_id);
		if (ret)
			return CATPT_IPC_ERROR(ret);
		break;

	case SNDRV_PCM_TRIGGER_STOP:
		stream->prepared = false;
		fallthrough;
	case SNDRV_PCM_TRIGGER_SUSPEND:
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id);
		catpt_dsp_update_lpclock(cdev);
		if (ret)
			return CATPT_IPC_ERROR(ret);
		break;

	default:
		break;
	}

	return 0;
}

void catpt_stream_update_position(struct catpt_dev *cdev,
				  struct catpt_stream_runtime *stream,
				  struct catpt_notify_position *pos)
{
	struct snd_pcm_substream *substream = stream->substream;
	struct snd_pcm_runtime *r = substream->runtime;
	snd_pcm_uframes_t dsppos, newpos;
	int ret;

	dsppos = bytes_to_frames(r, pos->stream_position);

	if (!stream->prepared)
		goto exit;
	/* only offload is set_write_pos driven */
	if (stream->template->type != CATPT_STRM_TYPE_RENDER)
		goto exit;

	if (dsppos >= r->buffer_size / 2)
		newpos = r->buffer_size / 2;
	else
		newpos = 0;
	/*
	 * Dsp operates on buffer halves, thus on every notify position
	 * (buffer half consumed) update wp to allow stream progression.
	 */
	ret = catpt_ipc_set_write_pos(cdev, stream->info.stream_hw_id,
				      frames_to_bytes(r, newpos),
				      false, false);
	if (ret) {
		dev_err(cdev->dev, "update position for stream %d failed: %d\n",
			stream->info.stream_hw_id, ret);
		return;
	}
exit:
	snd_pcm_period_elapsed(substream);
}

/* 200 ms for 2 32-bit channels at 48kHz (native format) */
#define CATPT_BUFFER_MAX_SIZE	76800
#define CATPT_PCM_PERIODS_MAX	4
#define CATPT_PCM_PERIODS_MIN	2

static const struct snd_pcm_hardware catpt_pcm_hardware = {
	.info			= SNDRV_PCM_INFO_MMAP |
				  SNDRV_PCM_INFO_MMAP_VALID |
				  SNDRV_PCM_INFO_INTERLEAVED |
				  SNDRV_PCM_INFO_PAUSE |
				  SNDRV_PCM_INFO_RESUME |
				  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
				  SNDRV_PCM_FMTBIT_S32_LE,
	.subformats		= SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
				  SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	.period_bytes_min	= PAGE_SIZE,
	.period_bytes_max	= CATPT_BUFFER_MAX_SIZE / CATPT_PCM_PERIODS_MIN,
	.periods_min		= CATPT_PCM_PERIODS_MIN,
	.periods_max		= CATPT_PCM_PERIODS_MAX,
	.buffer_bytes_max	= CATPT_BUFFER_MAX_SIZE,
};

static int catpt_component_pcm_construct(struct snd_soc_component *component,
					 struct snd_soc_pcm_runtime *rtm)
{
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);

	snd_pcm_set_managed_buffer_all(rtm->pcm, SNDRV_DMA_TYPE_DEV_SG,
				       cdev->dev,
				       catpt_pcm_hardware.buffer_bytes_max,
				       catpt_pcm_hardware.buffer_bytes_max);

	return 0;
}

static int catpt_component_open(struct snd_soc_component *component,
				struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtm = snd_soc_substream_to_rtd(substream);

	if (!rtm->dai_link->no_pcm)
		snd_soc_set_runtime_hwparams(substream, &catpt_pcm_hardware);
	return 0;
}

static snd_pcm_uframes_t
catpt_component_pointer(struct snd_soc_component *component,
			struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtm = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtm, 0);
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	u32 pos;

	if (rtm->dai_link->no_pcm)
		return 0;

	stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
	pos = catpt_stream_read_position(cdev, stream);

	return bytes_to_frames(substream->runtime, pos);
}

static const struct snd_soc_dai_ops catpt_fe_dai_ops = {
	.startup = catpt_dai_startup,
	.shutdown = catpt_dai_shutdown,
	.hw_params = catpt_dai_hw_params,
	.hw_free = catpt_dai_hw_free,
	.prepare = catpt_dai_prepare,
	.trigger = catpt_dai_trigger,
};

static int catpt_dai_pcm_new(struct snd_soc_pcm_runtime *rtm,
			     struct snd_soc_dai *dai)
{
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtm, 0);
	struct catpt_ssp_device_format devfmt;
	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
	int ret;

	devfmt.iface = dai->driver->id;
	devfmt.channels = codec_dai->driver->capture.channels_max;

	switch (devfmt.iface) {
	case CATPT_SSP_IFACE_0:
		devfmt.mclk = CATPT_MCLK_FREQ_24_MHZ;

		switch (devfmt.channels) {
		case 4:
			devfmt.mode = CATPT_SSP_MODE_TDM_PROVIDER;
			devfmt.clock_divider = 4;
			break;
		case 2:
		default:
			devfmt.mode = CATPT_SSP_MODE_I2S_PROVIDER;
			devfmt.clock_divider = 9;
			break;
		}
		break;

	case CATPT_SSP_IFACE_1:
		devfmt.mclk = CATPT_MCLK_OFF;
		devfmt.mode = CATPT_SSP_MODE_I2S_CONSUMER;
		devfmt.clock_divider = 0;
		break;
	}

	/* see if this is a new configuration */
	if (!memcmp(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt)))
		return 0;

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	ret = catpt_ipc_set_device_format(cdev, &devfmt);

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	if (ret)
		return CATPT_IPC_ERROR(ret);

	/* store device format set for given SSP */
	memcpy(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt));
	return 0;
}

static const struct snd_soc_dai_ops catpt_dai_ops = {
	.pcm_new = catpt_dai_pcm_new,
};

static struct snd_soc_dai_driver dai_drivers[] = {
/* FE DAIs */
{
	.name  = "System Pin",
	.id = CATPT_STRM_TYPE_SYSTEM,
	.ops = &catpt_fe_dai_ops,
	.playback = {
		.stream_name = "System Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.subformats = SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
			      SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	},
	.capture = {
		.stream_name = "Analog Capture",
		.channels_min = 2,
		.channels_max = 4,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.subformats = SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
			      SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	},
},
{
	.name  = "Offload0 Pin",
	.id = CATPT_STRM_TYPE_RENDER,
	.ops = &catpt_fe_dai_ops,
	.playback = {
		.stream_name = "Offload0 Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.subformats = SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
			      SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	},
},
{
	.name  = "Offload1 Pin",
	.id = CATPT_STRM_TYPE_RENDER,
	.ops = &catpt_fe_dai_ops,
	.playback = {
		.stream_name = "Offload1 Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.subformats = SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
			      SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	},
},
{
	.name  = "Loopback Pin",
	.id = CATPT_STRM_TYPE_LOOPBACK,
	.ops = &catpt_fe_dai_ops,
	.capture = {
		.stream_name = "Loopback Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.subformats = SNDRV_PCM_SUBFMTBIT_MSBITS_24 |
			      SNDRV_PCM_SUBFMTBIT_MSBITS_MAX,
	},
},
{
	.name  = "Bluetooth Pin",
	.id = CATPT_STRM_TYPE_BLUETOOTH_RENDER,
	.ops = &catpt_fe_dai_ops,
	.playback = {
		.stream_name = "Bluetooth Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = SNDRV_PCM_RATE_8000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.capture = {
		.stream_name = "Bluetooth Capture",
		.channels_min = 1,
		.channels_max = 1,
		.rates = SNDRV_PCM_RATE_8000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
},
/* BE DAIs */
{
	.name = "ssp0-port",
	.id = CATPT_SSP_IFACE_0,
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.ops = &catpt_dai_ops,
},
{
	.name = "ssp1-port",
	.id = CATPT_SSP_IFACE_1,
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.ops = &catpt_dai_ops,
},
};

#define DSP_VOLUME_MAX		S32_MAX /* 0db */
#define DSP_VOLUME_STEP_MAX	30

static u32 ctlvol_to_dspvol(u32 value)
{
	if (value > DSP_VOLUME_STEP_MAX)
		value = 0;
	return DSP_VOLUME_MAX >> (DSP_VOLUME_STEP_MAX - value);
}

static u32 dspvol_to_ctlvol(u32 volume)
{
	if (volume > DSP_VOLUME_MAX)
		return DSP_VOLUME_STEP_MAX;
	return volume ? __fls(volume) : 0;
}

static int catpt_set_dspvol(struct catpt_dev *cdev, u8 stream_id, long *ctlvol)
{
	u32 dspvol;
	int ret, i;

	for (i = 1; i < CATPT_CHANNELS_MAX; i++)
		if (ctlvol[i] != ctlvol[0])
			break;

	if (i == CATPT_CHANNELS_MAX) {
		dspvol = ctlvol_to_dspvol(ctlvol[0]);

		ret = catpt_ipc_set_volume(cdev, stream_id,
					   CATPT_ALL_CHANNELS_MASK, dspvol,
					   0, CATPT_AUDIO_CURVE_NONE);
	} else {
		for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
			dspvol = ctlvol_to_dspvol(ctlvol[i]);

			ret = catpt_ipc_set_volume(cdev, stream_id,
						   i, dspvol,
						   0, CATPT_AUDIO_CURVE_NONE);
			if (ret)
				break;
		}
	}

	if (ret)
		return CATPT_IPC_ERROR(ret);
	return 0;
}

static int catpt_volume_info(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = CATPT_CHANNELS_MAX;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = DSP_VOLUME_STEP_MAX;
	return 0;
}

static int catpt_mixer_volume_get(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	u32 dspvol;
	int ret;
	int i;

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
		dspvol = catpt_mixer_volume(cdev, &cdev->mixer, i);
		ucontrol->value.integer.value[i] = dspvol_to_ctlvol(dspvol);
	}

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	return 0;
}

static int catpt_mixer_volume_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	int ret;

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	ret = catpt_set_dspvol(cdev, cdev->mixer.mixer_hw_id,
			       ucontrol->value.integer.value);

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	return ret;
}

static int catpt_stream_volume_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol,
				   enum catpt_pin_id pin_id)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	long *ctlvol = (long *)kcontrol->private_value;
	u32 dspvol;
	int ret;
	int i;

	stream = catpt_stream_find(cdev, pin_id);
	if (!stream) {
		for (i = 0; i < CATPT_CHANNELS_MAX; i++)
			ucontrol->value.integer.value[i] = ctlvol[i];
		return 0;
	}

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
		dspvol = catpt_stream_volume(cdev, stream, i);
		ucontrol->value.integer.value[i] = dspvol_to_ctlvol(dspvol);
	}

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	return 0;
}

static int catpt_stream_volume_put(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol,
				   enum catpt_pin_id pin_id)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	long *ctlvol = (long *)kcontrol->private_value;
	int ret, i;

	stream = catpt_stream_find(cdev, pin_id);
	if (!stream) {
		for (i = 0; i < CATPT_CHANNELS_MAX; i++)
			ctlvol[i] = ucontrol->value.integer.value[i];
		return 0;
	}

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	ret = catpt_set_dspvol(cdev, stream->info.stream_hw_id,
			       ucontrol->value.integer.value);

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	if (ret)
		return ret;

	for (i = 0; i < CATPT_CHANNELS_MAX; i++)
		ctlvol[i] = ucontrol->value.integer.value[i];
	return 0;
}

static int catpt_offload1_volume_get(struct snd_kcontrol *kctl,
				     struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_OFFLOAD1);
}

static int catpt_offload1_volume_put(struct snd_kcontrol *kctl,
				     struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_OFFLOAD1);
}

static int catpt_offload2_volume_get(struct snd_kcontrol *kctl,
				     struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_OFFLOAD2);
}

static int catpt_offload2_volume_put(struct snd_kcontrol *kctl,
				     struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_OFFLOAD2);
}

static int catpt_capture_volume_get(struct snd_kcontrol *kctl,
				    struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_CAPTURE1);
}

static int catpt_capture_volume_put(struct snd_kcontrol *kctl,
				    struct snd_ctl_elem_value *uctl)
{
	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_CAPTURE1);
}

static int catpt_loopback_switch_get(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = *(bool *)kcontrol->private_value;
	return 0;
}

static int catpt_loopback_switch_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct catpt_stream_runtime *stream;
	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
	bool mute;
	int ret;

	mute = (bool)ucontrol->value.integer.value[0];
	stream = catpt_stream_find(cdev, CATPT_PIN_ID_REFERENCE);
	if (!stream) {
		*(bool *)kcontrol->private_value = mute;
		return 0;
	}

	ret = pm_runtime_resume_and_get(cdev->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	ret = catpt_ipc_mute_loopback(cdev, stream->info.stream_hw_id, mute);

	pm_runtime_mark_last_busy(cdev->dev);
	pm_runtime_put_autosuspend(cdev->dev);

	if (ret)
		return CATPT_IPC_ERROR(ret);

	*(bool *)kcontrol->private_value = mute;
	return 0;
}

static int catpt_waves_switch_get(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	return 0;
}

static int catpt_waves_switch_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	return 0;
}

static int catpt_waves_param_get(struct snd_kcontrol *kcontrol,
				 unsigned int __user *bytes,
				 unsigned int size)
{
	return 0;
}

static int catpt_waves_param_put(struct snd_kcontrol *kcontrol,
				 const unsigned int __user *bytes,
				 unsigned int size)
{
	return 0;
}

static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(catpt_volume_tlv, -9000, 300, 1);

#define CATPT_VOLUME_CTL(kname, sname) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
	.name = (kname), \
	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
		  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
	.info = catpt_volume_info, \
	.get = catpt_##sname##_volume_get, \
	.put = catpt_##sname##_volume_put, \
	.tlv.p = catpt_volume_tlv, \
	.private_value = (unsigned long) \
		&(long[CATPT_CHANNELS_MAX]) {0} }

static const struct snd_kcontrol_new component_kcontrols[] = {
/* Master volume (mixer stream) */
CATPT_VOLUME_CTL("Master Playback Volume", mixer),
/* Individual volume controls for offload and capture */
CATPT_VOLUME_CTL("Media0 Playback Volume", offload1),
CATPT_VOLUME_CTL("Media1 Playback Volume", offload2),
CATPT_VOLUME_CTL("Mic Capture Volume", capture),
SOC_SINGLE_BOOL_EXT("Loopback Mute", (unsigned long)&(bool[1]) {0},
		    catpt_loopback_switch_get, catpt_loopback_switch_put),
/* Enable or disable WAVES module */
SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
		    catpt_waves_switch_get, catpt_waves_switch_put),
/* WAVES module parameter control */
SND_SOC_BYTES_TLV("Waves Set Param", 128,
		  catpt_waves_param_get, catpt_waves_param_put),
};

static const struct snd_soc_dapm_widget component_widgets[] = {
	SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
};

static const struct snd_soc_dapm_route component_routes[] = {
	{"Playback VMixer", NULL, "System Playback"},
	{"Playback VMixer", NULL, "Offload0 Playback"},
	{"Playback VMixer", NULL, "Offload1 Playback"},

	{"SSP0 CODEC OUT", NULL, "Playback VMixer"},

	{"Analog Capture", NULL, "SSP0 CODEC IN"},
	{"Loopback Capture", NULL, "SSP0 CODEC IN"},

	{"SSP1 BT OUT", NULL, "Bluetooth Playback"},
	{"Bluetooth Capture", NULL, "SSP1 BT IN"},
};

static const struct snd_soc_component_driver catpt_comp_driver = {
	.name = "catpt-platform",

	.pcm_construct = catpt_component_pcm_construct,
	.open = catpt_component_open,
	.pointer = catpt_component_pointer,

	.controls = component_kcontrols,
	.num_controls = ARRAY_SIZE(component_kcontrols),
	.dapm_widgets = component_widgets,
	.num_dapm_widgets = ARRAY_SIZE(component_widgets),
	.dapm_routes = component_routes,
	.num_dapm_routes = ARRAY_SIZE(component_routes),
};

int catpt_arm_stream_templates(struct catpt_dev *cdev)
{
	struct resource *res;
	u32 scratch_size = 0;
	int i, j;

	for (i = 0; i < ARRAY_SIZE(catpt_topology); i++) {
		struct catpt_stream_template *template;
		struct catpt_module_entry *entry;
		struct catpt_module_type *type;

		template = catpt_topology[i];
		template->persistent_size = 0;

		for (j = 0; j < template->num_entries; j++) {
			entry = &template->entries[j];
			type = &cdev->modules[entry->module_id];

			if (!type->loaded)
				return -ENOENT;

			entry->entry_point = type->entry_point;
			template->persistent_size += type->persistent_size;
			if (type->scratch_size > scratch_size)
				scratch_size = type->scratch_size;
		}
	}

	if (scratch_size) {
		/* allocate single scratch area for all modules */
		res = catpt_request_region(&cdev->dram, scratch_size);
		if (!res)
			return -EBUSY;
		cdev->scratch = res;
	}

	return 0;
}

int catpt_register_plat_component(struct catpt_dev *cdev)
{
	struct snd_soc_component *component;
	int ret;

	component = devm_kzalloc(cdev->dev, sizeof(*component), GFP_KERNEL);
	if (!component)
		return -ENOMEM;

	ret = snd_soc_component_initialize(component, &catpt_comp_driver,
					   cdev->dev);
	if (ret)
		return ret;

	component->name = catpt_comp_driver.name;
	return snd_soc_add_component(component, dai_drivers,
				     ARRAY_SIZE(dai_drivers));
}
