LXR linux/sound/soc/sdw_utils/soc_sdw_rt_mf

   1// SPDX-License-Identifier: GPL-2.0-only
   2// This file incorporates work covered by the following copyright notice:
   3// Copyright (c) 2024 Intel Corporation.
   4
   5/*
   6 *  soc_sdw_rt_mf_sdca
   7 *  - Helpers to handle RT Multifunction Codec from generic machine driver
   8 */
   9
  10#include <linux/device.h>
  11#include <linux/errno.h>
  12#include <linux/soundwire/sdw.h>
  13#include <linux/soundwire/sdw_type.h>
  14#include <sound/control.h>
  15#include <sound/soc.h>
  16#include <sound/soc-acpi.h>
  17#include <sound/soc-dapm.h>
  18#include <sound/soc_sdw_utils.h>
  19
  20#define CODEC_NAME_SIZE 6
  21
  22/* dapm routes for RT-SPK will be registered dynamically */
  23static const struct snd_soc_dapm_route rt712_spk_map[] = {
  24        { "Speaker", NULL, "rt712 SPOL" },
  25        { "Speaker", NULL, "rt712 SPOR" },
  26};
  27
  28static const struct snd_soc_dapm_route rt721_spk_map[] = {
  29        { "Speaker", NULL, "rt721 SPK" },
  30};
  31
  32static const struct snd_soc_dapm_route rt722_spk_map[] = {
  33        { "Speaker", NULL, "rt722 SPK" },
  34};
  35
  36/* Structure to map codec names to respective route arrays and sizes */
  37struct codec_route_map {
  38        const char *codec_name;
  39        const struct snd_soc_dapm_route *route_map;
  40        size_t route_size;
  41};
  42
  43/* Codec route maps array */
  44static const struct codec_route_map codec_routes[] = {
  45        { "rt712", rt712_spk_map, ARRAY_SIZE(rt712_spk_map) },
  46        { "rt721", rt721_spk_map, ARRAY_SIZE(rt721_spk_map) },
  47        { "rt722", rt722_spk_map, ARRAY_SIZE(rt722_spk_map) },
  48};
  49
  50static const struct codec_route_map *get_codec_route_map(const char *codec_name)
  51{
  52        for (size_t i = 0; i < ARRAY_SIZE(codec_routes); i++) {
  53                if (strcmp(codec_routes[i].codec_name, codec_name) == 0)
  54                        return &codec_routes[i];
  55        }
  56        return NULL;
  57}
  58
  59int asoc_sdw_rt_mf_sdca_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
  60{
  61        struct snd_soc_card *card = rtd->card;
  62        char codec_name[CODEC_NAME_SIZE];
  63        int ret;
  64
  65        /* acquire codec name */
  66        snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai->name);
  67
  68        /* acquire corresponding route map and size */
  69        const struct codec_route_map *route_map = get_codec_route_map(codec_name);
  70
  71        if (!route_map) {
  72                dev_err(rtd->dev, "failed to get codec name and route map\n");
  73                return -EINVAL;
  74        }
  75
  76        /* Add routes */
  77        ret = snd_soc_dapm_add_routes(&card->dapm, route_map->route_map, route_map->route_size);
  78        if (ret)
  79                dev_err(rtd->dev, "failed to add rt sdca spk map: %d\n", ret);
  80
  81        return ret;
  82}
  83EXPORT_SYMBOL_NS(asoc_sdw_rt_mf_sdca_spk_rtd_init, "SND_SOC_SDW_UTILS");
  84