ssm4567.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2//
  3// Copyright(c) 2021-2022 Intel Corporation
  4//
  5// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
  6//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
  7//
  8
  9#include <linux/module.h>
 10#include <linux/platform_device.h>
 11#include <sound/core.h>
 12#include <sound/pcm.h>
 13#include <sound/pcm_params.h>
 14#include <sound/soc.h>
 15#include <sound/soc-acpi.h>
 16#include "../../../codecs/nau8825.h"
 17#include "../utils.h"
 18
 19#define SKL_SSM_CODEC_DAI	"ssm4567-hifi"
 20
 21static struct snd_soc_codec_conf card_codec_conf[] = {
 22	{
 23		.dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
 24		.name_prefix = "Left",
 25	},
 26	{
 27		.dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
 28		.name_prefix = "Right",
 29	},
 30};
 31
 32static const struct snd_kcontrol_new card_controls[] = {
 33	SOC_DAPM_PIN_SWITCH("Left Speaker"),
 34	SOC_DAPM_PIN_SWITCH("Right Speaker"),
 35};
 36
 37static const struct snd_soc_dapm_widget card_widgets[] = {
 38	SND_SOC_DAPM_SPK("Left Speaker", NULL),
 39	SND_SOC_DAPM_SPK("Right Speaker", NULL),
 40};
 41
 42static const struct snd_soc_dapm_route card_base_routes[] = {
 43	{"Left Speaker", NULL, "Left OUT"},
 44	{"Right Speaker", NULL, "Right OUT"},
 45};
 46
 47static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime)
 48{
 49	int ret;
 50
 51	/* Slot 1 for left */
 52	ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48);
 53	if (ret < 0)
 54		return ret;
 55
 56	/* Slot 2 for right */
 57	ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48);
 58	if (ret < 0)
 59		return ret;
 60
 61	return 0;
 62}
 63
 64static int
 65avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
 66{
 67	struct snd_interval *rate, *channels;
 68	struct snd_mask *fmt;
 69
 70	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 71	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 72	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 73
 74	/* The ADSP will convert the FE rate to 48k, stereo */
 75	rate->min = rate->max = 48000;
 76	channels->min = channels->max = 2;
 77
 78	/* set SSP0 to 24 bit */
 79	snd_mask_none(fmt);
 80	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
 81	return 0;
 82}
 83
 84static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
 85			       struct snd_soc_dai_link **dai_link)
 86{
 87	struct snd_soc_dai_link_component *platform;
 88	struct snd_soc_dai_link *dl;
 89
 90	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
 91	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
 92	if (!dl || !platform)
 93		return -ENOMEM;
 94
 95	dl->name = devm_kasprintf(dev, GFP_KERNEL,
 96				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
 97	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
 98	dl->codecs = devm_kcalloc(dev, 2, sizeof(*dl->codecs), GFP_KERNEL);
 99	if (!dl->name || !dl->cpus || !dl->codecs)
100		return -ENOMEM;
101
102	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
103					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
104	dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00");
105	dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
106	dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01");
107	dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
108	if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
109	    !dl->codecs[1].name || !dl->codecs[1].dai_name)
110		return -ENOMEM;
111
112	platform->name = dev_name(dev);
113	dl->num_cpus = 1;
114	dl->num_codecs = 2;
115	dl->platforms = platform;
116	dl->num_platforms = 1;
117	dl->id = 0;
118	dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBC_CFC;
119	dl->init = avs_ssm4567_codec_init;
120	dl->be_hw_params_fixup = avs_ssm4567_be_fixup;
121	dl->nonatomic = 1;
122	dl->no_pcm = 1;
123	dl->ignore_pmdown_time = 1;
124
125	*dai_link = dl;
126
127	return 0;
128}
129
130static int avs_ssm4567_probe(struct platform_device *pdev)
131{
132	struct snd_soc_dai_link *dai_link;
133	struct snd_soc_acpi_mach *mach;
134	struct avs_mach_pdata *pdata;
135	struct snd_soc_card *card;
136	struct device *dev = &pdev->dev;
137	int ssp_port, tdm_slot, ret;
138
139	mach = dev_get_platdata(dev);
140	pdata = mach->pdata;
141
142	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
143	if (ret)
144		return ret;
145
146	ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link);
147	if (ret) {
148		dev_err(dev, "Failed to create dai link: %d", ret);
149		return ret;
150	}
151
152	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
153	if (!card)
154		return -ENOMEM;
155
156	if (pdata->obsolete_card_names) {
157		card->name = "avs_ssm4567";
158	} else {
159		card->driver_name = "avs_ssm4567";
160		card->long_name = card->name = "AVS I2S SSM4567";
161	}
162	card->dev = dev;
163	card->owner = THIS_MODULE;
164	card->dai_link = dai_link;
165	card->num_links = 1;
166	card->codec_conf = card_codec_conf;
167	card->num_configs = ARRAY_SIZE(card_codec_conf);
168	card->controls = card_controls;
169	card->num_controls = ARRAY_SIZE(card_controls);
170	card->dapm_widgets = card_widgets;
171	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
172	card->dapm_routes = card_base_routes;
173	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
174	card->fully_routed = true;
175
176	return devm_snd_soc_register_deferrable_card(dev, card);
177}
178
179static const struct platform_device_id avs_ssm4567_driver_ids[] = {
180	{
181		.name = "avs_ssm4567",
182	},
183	{},
184};
185MODULE_DEVICE_TABLE(platform, avs_ssm4567_driver_ids);
186
187static struct platform_driver avs_ssm4567_driver = {
188	.probe = avs_ssm4567_probe,
189	.driver = {
190		.name = "avs_ssm4567",
191		.pm = &snd_soc_pm_ops,
192	},
193	.id_table = avs_ssm4567_driver_ids,
194};
195
196module_platform_driver(avs_ssm4567_driver)
197
198MODULE_DESCRIPTION("Intel ssm4567 machine driver");
199MODULE_LICENSE("GPL");