1// SPDX-License-Identifier: GPL-2.0-only
 2// Copyright (c) 2023 Intel Corporation
 3
 4/*
 5 *  sof_sdw_cs_amp - Helpers to handle CS35L56 from generic machine driver
 6 */
 7
 8#include <linux/device.h>
 9#include <linux/errno.h>
10#include <sound/soc.h>
11#include <sound/soc-acpi.h>
12#include <sound/soc-dai.h>
13#include "sof_sdw_common.h"
14
15#define CODEC_NAME_SIZE	8
16
17static const struct snd_soc_dapm_widget sof_widgets[] = {
18	SND_SOC_DAPM_SPK("Speakers", NULL),
19};
20
21static int cs_spk_init(struct snd_soc_pcm_runtime *rtd)
22{
23	const char *dai_name = rtd->dai_link->codecs->dai_name;
24	struct snd_soc_card *card = rtd->card;
25	char codec_name[CODEC_NAME_SIZE];
26	char widget_name[16];
27	struct snd_soc_dapm_route route = { "Speakers", NULL, widget_name };
28	struct snd_soc_dai *codec_dai;
29	int i, ret;
30
31	snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
32	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
33					  "%s spk:%s",
34					  card->components, codec_name);
35	if (!card->components)
36		return -ENOMEM;
37
38	ret = snd_soc_dapm_new_controls(&card->dapm, sof_widgets,
39					ARRAY_SIZE(sof_widgets));
40	if (ret) {
41		dev_err(card->dev, "widgets addition failed: %d\n", ret);
42		return ret;
43	}
44
45	for_each_rtd_codec_dais(rtd, i, codec_dai) {
46		if (!strstr(codec_dai->name, "cs35l56"))
47			continue;
48
49		snprintf(widget_name, sizeof(widget_name), "%s SPK",
50			 codec_dai->component->name_prefix);
51		ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);
52		if (ret)
53			return ret;
54	}
55
56	return 0;
57}
58
59int sof_sdw_cs_amp_init(struct snd_soc_card *card,
60			const struct snd_soc_acpi_link_adr *link,
61			struct snd_soc_dai_link *dai_links,
62			struct sof_sdw_codec_info *info,
63			bool playback)
64{
65	/* Do init on playback link only. */
66	if (!playback)
67		return 0;
68
69	info->amp_num++;
70	dai_links->init = cs_spk_init;
71
72	return 0;
73}