root/sound/soc/intel/catpt/pcm.c
// 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 void 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));
}

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_obj(*stream);
        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);
        return CATPT_IPC_RET(ret);
}

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_RET(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_RET(ret);

        ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id);
        if (ret)
                return CATPT_IPC_RET(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_RET(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_RET(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_RET(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);
        catpt_stream_read_position(cdev, stream, &pos);

        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)
                return ret;

        ret = catpt_ipc_set_device_format(cdev, &devfmt);

        pm_runtime_put_autosuspend(cdev->dev);

        if (ret)
                return CATPT_IPC_RET(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;
                }
        }

        return CATPT_IPC_RET(ret);
}

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_kcontrol_chip(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)
                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_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_kcontrol_chip(kcontrol);
        struct catpt_dev *cdev = dev_get_drvdata(component->dev);
        int ret;

        ret = pm_runtime_resume_and_get(cdev->dev);
        if (ret)
                return ret;

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

        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_kcontrol_chip(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)
                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_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_kcontrol_chip(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)
                return ret;

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

        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_kcontrol_chip(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)
                return ret;

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

        pm_runtime_put_autosuspend(cdev->dev);

        if (ret)
                return CATPT_IPC_RET(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));
}