// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2025 Texas Instruments Inc.

/*
 *  soc_sdw_ti_amp - Helpers to handle TI's soundwire based codecs
 */

#include <linux/device.h>
#include <linux/errno.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dai.h>
#include <sound/soc_sdw_utils.h>

#define TIAMP_SPK_VOLUME_0DB            200

int asoc_sdw_ti_amp_initial_settings(struct snd_soc_card *card,
                                     const char *name_prefix)
{
        char *volume_ctl_name;
        int ret;

        volume_ctl_name = kasprintf(GFP_KERNEL, "%s Speaker Volume",
                                    name_prefix);
        if (!volume_ctl_name)
                return -ENOMEM;

        ret = snd_soc_limit_volume(card, volume_ctl_name,
                                   TIAMP_SPK_VOLUME_0DB);
        if (ret)
                dev_err(card->dev,
                        "%s update failed %d\n",
                        volume_ctl_name, ret);

        kfree(volume_ctl_name);
        return 0;
}
EXPORT_SYMBOL_NS(asoc_sdw_ti_amp_initial_settings, "SND_SOC_SDW_UTILS");

int asoc_sdw_ti_spk_rtd_init(struct snd_soc_pcm_runtime *rtd,
                             struct snd_soc_dai *dai)
{
        struct snd_soc_card *card = rtd->card;
        struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
        char widget_name[16];
        char speaker[16];
        struct snd_soc_dapm_route route = {speaker, NULL, widget_name};
        struct snd_soc_dai *codec_dai;
        const char *prefix;
        int i, ret = 0;

        for_each_rtd_codec_dais(rtd, i, codec_dai) {
                if (!strstr(codec_dai->name, "tas2783"))
                        continue;

                prefix = codec_dai->component->name_prefix;
                if (!strncmp(prefix, "tas2783-1", strlen("tas2783-1"))) {
                        strscpy(speaker, "Left Spk", sizeof(speaker));
                } else if (!strncmp(prefix, "tas2783-2", strlen("tas2783-2"))) {
                        strscpy(speaker, "Right Spk", sizeof(speaker));
                } else if (!strncmp(prefix, "tas2783-3", strlen("tas2783-3"))) {
                        strscpy(speaker, "Left Spk2", sizeof(speaker));
                } else if (!strncmp(prefix, "tas2783-4", strlen("tas2783-4"))) {
                        strscpy(speaker, "Right Spk2", sizeof(speaker));
                } else {
                        ret = -EINVAL;
                        dev_err(card->dev, "unhandled prefix %s", prefix);
                        break;
                }

                snprintf(widget_name, sizeof(widget_name), "%s SPK", prefix);
                ret = asoc_sdw_ti_amp_initial_settings(card, prefix);
                if (ret)
                        return ret;

                ret = snd_soc_dapm_add_routes(dapm, &route, 1);
                if (ret)
                        return ret;
        }

        return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_ti_spk_rtd_init, "SND_SOC_SDW_UTILS");

int asoc_sdw_ti_amp_init(struct snd_soc_card *card,
                         struct snd_soc_dai_link *dai_links,
                         struct asoc_sdw_codec_info *info,
                         bool playback)
{
        if (!playback)
                return 0;

        info->amp_num++;

        return 0;
}
EXPORT_SYMBOL_NS(asoc_sdw_ti_amp_init, "SND_SOC_SDW_UTILS");