rt5514.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2//
  3// Copyright(c) 2021-2023 Intel Corporation
  4//
  5// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
  6//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
  7//
  8
  9#include <linux/clk.h>
 10#include <linux/input.h>
 11#include <linux/module.h>
 12#include <sound/jack.h>
 13#include <sound/pcm.h>
 14#include <sound/pcm_params.h>
 15#include <sound/soc.h>
 16#include <sound/soc-acpi.h>
 17#include "../../../codecs/rt5514.h"
 18#include "../utils.h"
 19
 20#define RT5514_CODEC_DAI	"rt5514-aif1"
 21
 22static const struct snd_soc_dapm_widget card_widgets[] = {
 23	SND_SOC_DAPM_MIC("DMIC", NULL),
 24};
 25
 26static const struct snd_soc_dapm_route card_base_routes[] = {
 27	/* DMIC */
 28	{ "DMIC1L", NULL, "DMIC" },
 29	{ "DMIC1R", NULL, "DMIC" },
 30	{ "DMIC2L", NULL, "DMIC" },
 31	{ "DMIC2R", NULL, "DMIC" },
 32};
 33
 34static int avs_rt5514_codec_init(struct snd_soc_pcm_runtime *runtime)
 35{
 36	struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(runtime->card);
 37	int ret = snd_soc_dapm_ignore_suspend(dapm, "DMIC");
 38
 39	if (ret)
 40		dev_err(runtime->dev, "DMIC - Ignore suspend failed = %d\n", ret);
 41
 42	return ret;
 43}
 44
 45static int avs_rt5514_be_fixup(struct snd_soc_pcm_runtime *runtime,
 46			       struct snd_pcm_hw_params *params)
 47{
 48	struct snd_interval *rate, *channels;
 49	struct snd_mask *fmt;
 50
 51	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 52	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 53	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 54
 55	rate->min = rate->max = 48000;
 56	channels->min = channels->max = 4;
 57
 58	snd_mask_none(fmt);
 59	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
 60
 61	return 0;
 62}
 63
 64static int avs_rt5514_hw_params(struct snd_pcm_substream *substream,
 65				struct snd_pcm_hw_params *params)
 66{
 67	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 68	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 69	int ret;
 70
 71	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0, 8, 16);
 72	if (ret < 0) {
 73		dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
 74		return ret;
 75	}
 76
 77	ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
 78	if (ret < 0)
 79		dev_err(rtd->dev, "set sysclk err: %d\n", ret);
 80
 81	return ret;
 82}
 83
 84static const struct snd_soc_ops avs_rt5514_ops = {
 85	.hw_params = avs_rt5514_hw_params,
 86};
 87
 88static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
 89			       struct snd_soc_dai_link **dai_link)
 90{
 91	struct snd_soc_dai_link_component *platform;
 92	struct snd_soc_dai_link *dl;
 93
 94	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
 95	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
 96	if (!dl || !platform)
 97		return -ENOMEM;
 98
 99	dl->name = devm_kasprintf(dev, GFP_KERNEL,
100				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
101	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
102	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
103	if (!dl->name || !dl->cpus || !dl->codecs)
104		return -ENOMEM;
105
106	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
107					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
108	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5514:00");
109	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT5514_CODEC_DAI);
110	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
111		return -ENOMEM;
112
113	platform->name = dev_name(dev);
114	dl->num_cpus = 1;
115	dl->num_codecs = 1;
116	dl->platforms = platform;
117	dl->num_platforms = 1;
118	dl->id = 0;
119	dl->dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
120	dl->init = avs_rt5514_codec_init;
121	dl->be_hw_params_fixup = avs_rt5514_be_fixup;
122	dl->nonatomic = 1;
123	dl->no_pcm = 1;
124	dl->capture_only = 1;
125	dl->ops = &avs_rt5514_ops;
126
127	*dai_link = dl;
128
129	return 0;
130}
131
132static int avs_rt5514_probe(struct platform_device *pdev)
133{
134	struct snd_soc_dai_link *dai_link;
135	struct snd_soc_acpi_mach *mach;
136	struct avs_mach_pdata *pdata;
137	struct snd_soc_card *card;
138	struct device *dev = &pdev->dev;
139	int ssp_port, tdm_slot, ret;
140
141	mach = dev_get_platdata(dev);
142	pdata = mach->pdata;
143
144	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
145	if (ret)
146		return ret;
147
148	ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link);
149	if (ret) {
150		dev_err(dev, "Failed to create dai link: %d", ret);
151		return ret;
152	}
153
154	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
155	if (!card)
156		return -ENOMEM;
157
158	if (pdata->obsolete_card_names) {
159		card->name = "avs_rt5514";
160	} else {
161		card->driver_name = "avs_rt5514";
162		card->long_name = card->name = "AVS I2S ALC5514";
163	}
164	card->dev = dev;
165	card->owner = THIS_MODULE;
166	card->dai_link = dai_link;
167	card->num_links = 1;
168	card->dapm_widgets = card_widgets;
169	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
170	card->dapm_routes = card_base_routes;
171	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
172	card->fully_routed = true;
173
174	return devm_snd_soc_register_deferrable_card(dev, card);
175}
176
177static const struct platform_device_id avs_rt5514_driver_ids[] = {
178	{
179		.name = "avs_rt5514",
180	},
181	{},
182};
183MODULE_DEVICE_TABLE(platform, avs_rt5514_driver_ids);
184
185static struct platform_driver avs_rt5514_driver = {
186	.probe = avs_rt5514_probe,
187	.driver = {
188		.name = "avs_rt5514",
189		.pm = &snd_soc_pm_ops,
190	},
191	.id_table = avs_rt5514_driver_ids,
192};
193
194module_platform_driver(avs_rt5514_driver);
195
196MODULE_DESCRIPTION("Intel rt5514 machine driver");
197MODULE_LICENSE("GPL");