rt298.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/dmi.h>
 10#include <linux/module.h>
 11#include <sound/jack.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/rt298.h"
 17#include "../utils.h"
 18
 19#define RT298_CODEC_DAI		"rt298-aif1"
 20
 21static const struct dmi_system_id kblr_dmi_table[] = {
 22	{
 23		.matches = {
 24			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
 25			DMI_MATCH(DMI_BOARD_NAME, "Kabylake R DDR4 RVP"),
 26		},
 27	},
 28	{}
 29};
 30
 31static const struct snd_kcontrol_new card_controls[] = {
 32	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 33	SOC_DAPM_PIN_SWITCH("Mic Jack"),
 34	SOC_DAPM_PIN_SWITCH("Speaker"),
 35};
 36
 37static const struct snd_soc_dapm_widget card_widgets[] = {
 38	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 39	SND_SOC_DAPM_MIC("Mic Jack", NULL),
 40	SND_SOC_DAPM_SPK("Speaker", NULL),
 41};
 42
 43static const struct snd_soc_dapm_route card_base_routes[] = {
 44	/* HP jack connectors - unknown if we have jack detect */
 45	{"Headphone Jack", NULL, "HPO Pin"},
 46	{"MIC1", NULL, "Mic Jack"},
 47
 48	{"Speaker", NULL, "SPOR"},
 49	{"Speaker", NULL, "SPOL"},
 50};
 51
 52static const struct snd_soc_jack_pin card_headset_pins[] = {
 53	{
 54		.pin = "Headphone Jack",
 55		.mask = SND_JACK_HEADPHONE,
 56	},
 57	{
 58		.pin = "Mic Jack",
 59		.mask = SND_JACK_MICROPHONE,
 60	},
 61};
 62
 63static int avs_rt298_codec_init(struct snd_soc_pcm_runtime *runtime)
 64{
 65	struct snd_soc_card *card = runtime->card;
 66	struct snd_soc_jack_pin *pins;
 67	struct snd_soc_jack *jack;
 68	int num_pins, ret;
 69
 70	jack = snd_soc_card_get_drvdata(card);
 71	num_pins = ARRAY_SIZE(card_headset_pins);
 72
 73	pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins,
 74				  sizeof(card_headset_pins[0]), GFP_KERNEL);
 75	if (!pins)
 76		return -ENOMEM;
 77
 78	ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0,
 79					 jack, pins, num_pins);
 80	if (ret)
 81		return ret;
 82
 83	return snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, jack, NULL);
 84}
 85
 86static void avs_rt298_codec_exit(struct snd_soc_pcm_runtime *rtd)
 87{
 88	snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
 89}
 90
 91static int avs_rt298_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
 92{
 93	struct snd_interval *rate, *channels;
 94	struct snd_mask *fmt;
 95
 96	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 97	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 98	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 99
100	/* The ADSP will convert the FE rate to 48k, stereo */
101	rate->min = rate->max = 48000;
102	channels->min = channels->max = 2;
103
104	/* set SSP0 to 24 bit */
105	snd_mask_none(fmt);
106	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
107
108	return 0;
109}
110
111static int
112avs_rt298_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
113{
114	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
115	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
116	unsigned int clk_freq;
117	int ret;
118
119	if (dmi_first_match(kblr_dmi_table))
120		clk_freq = 24000000;
121	else
122		clk_freq = 19200000;
123
124	ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, clk_freq, SND_SOC_CLOCK_IN);
125	if (ret < 0)
126		dev_err(rtd->dev, "Set codec sysclk failed: %d\n", ret);
127
128	return ret;
129}
130
131static const struct snd_soc_ops avs_rt298_ops = {
132	.hw_params = avs_rt298_hw_params,
133};
134
135static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
136			       struct snd_soc_dai_link **dai_link)
137{
138	struct snd_soc_dai_link_component *platform;
139	struct snd_soc_dai_link *dl;
140
141	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
142	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
143	if (!dl || !platform)
144		return -ENOMEM;
145
146	dl->name = devm_kasprintf(dev, GFP_KERNEL,
147				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
148	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
149	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
150	if (!dl->name || !dl->cpus || !dl->codecs)
151		return -ENOMEM;
152
153	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
154					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
155	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343A:00");
156	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT298_CODEC_DAI);
157	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
158		return -ENOMEM;
159
160	platform->name = dev_name(dev);
161	dl->num_cpus = 1;
162	dl->num_codecs = 1;
163	dl->platforms = platform;
164	dl->num_platforms = 1;
165	dl->id = 0;
166	if (dmi_first_match(kblr_dmi_table))
167		dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
168	else
169		dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
170	dl->init = avs_rt298_codec_init;
171	dl->exit = avs_rt298_codec_exit;
172	dl->be_hw_params_fixup = avs_rt298_be_fixup;
173	dl->ops = &avs_rt298_ops;
174	dl->nonatomic = 1;
175	dl->no_pcm = 1;
176
177	*dai_link = dl;
178
179	return 0;
180}
181
182static int avs_card_suspend_pre(struct snd_soc_card *card)
183{
184	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
185
186	return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
187}
188
189static int avs_card_resume_post(struct snd_soc_card *card)
190{
191	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
192	struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
193
194	return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
195}
196
197static int avs_rt298_probe(struct platform_device *pdev)
198{
199	struct snd_soc_dai_link *dai_link;
200	struct snd_soc_acpi_mach *mach;
201	struct avs_mach_pdata *pdata;
202	struct snd_soc_card *card;
203	struct snd_soc_jack *jack;
204	struct device *dev = &pdev->dev;
205	int ssp_port, tdm_slot, ret;
206
207	mach = dev_get_platdata(dev);
208	pdata = mach->pdata;
209
210	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
211	if (ret)
212		return ret;
213
214	ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link);
215	if (ret) {
216		dev_err(dev, "Failed to create dai link: %d", ret);
217		return ret;
218	}
219
220	jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
221	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
222	if (!jack || !card)
223		return -ENOMEM;
224
225	if (pdata->obsolete_card_names) {
226		card->name = "avs_rt298";
227	} else {
228		card->driver_name = "avs_rt298";
229		card->long_name = card->name = "AVS I2S ALC298";
230	}
231	card->dev = dev;
232	card->owner = THIS_MODULE;
233	card->suspend_pre = avs_card_suspend_pre;
234	card->resume_post = avs_card_resume_post;
235	card->dai_link = dai_link;
236	card->num_links = 1;
237	card->controls = card_controls;
238	card->num_controls = ARRAY_SIZE(card_controls);
239	card->dapm_widgets = card_widgets;
240	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
241	card->dapm_routes = card_base_routes;
242	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
243	card->fully_routed = true;
244	snd_soc_card_set_drvdata(card, jack);
245
246	return devm_snd_soc_register_deferrable_card(dev, card);
247}
248
249static const struct platform_device_id avs_rt298_driver_ids[] = {
250	{
251		.name = "avs_rt298",
252	},
253	{},
254};
255MODULE_DEVICE_TABLE(platform, avs_rt298_driver_ids);
256
257static struct platform_driver avs_rt298_driver = {
258	.probe = avs_rt298_probe,
259	.driver = {
260		.name = "avs_rt298",
261		.pm = &snd_soc_pm_ops,
262	},
263	.id_table = avs_rt298_driver_ids,
264};
265
266module_platform_driver(avs_rt298_driver);
267
268MODULE_DESCRIPTION("Intel rt298 machine driver");
269MODULE_LICENSE("GPL");