da7219.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2//
  3// Copyright(c) 2021-2022 Intel Corporation
  4//
  5// Author: Cezary Rojewski <cezary.rojewski@intel.com>
  6//
  7
  8#include <linux/module.h>
  9#include <linux/platform_data/x86/soc.h>
 10#include <linux/platform_device.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 <sound/soc-dapm.h>
 17#include <uapi/linux/input-event-codes.h>
 18#include "../../../codecs/da7219.h"
 19#include "../utils.h"
 20
 21#define DA7219_DAI_NAME		"da7219-hifi"
 22
 23static const struct snd_kcontrol_new card_controls[] = {
 24	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 25	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 26	SOC_DAPM_PIN_SWITCH("Line Out"),
 27};
 28
 29static int platform_clock_control(struct snd_soc_dapm_widget *w,
 30				  struct snd_kcontrol *k, int  event)
 31{
 32	struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
 33	struct snd_soc_dai *codec_dai;
 34	int ret = 0;
 35
 36	codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
 37	if (!codec_dai) {
 38		dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n");
 39		return -EIO;
 40	}
 41
 42	if (SND_SOC_DAPM_EVENT_OFF(event)) {
 43		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
 44		if (ret)
 45			dev_err(card->dev, "failed to stop PLL: %d\n", ret);
 46	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
 47		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM,
 48					  0, DA7219_PLL_FREQ_OUT_98304);
 49		if (ret)
 50			dev_err(card->dev, "failed to start PLL: %d\n", ret);
 51	}
 52
 53	return ret;
 54}
 55
 56static const struct snd_soc_dapm_widget card_widgets[] = {
 57	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 58	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 59	SND_SOC_DAPM_LINE("Line Out", NULL),
 60	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control,
 61			    SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU),
 62};
 63
 64static const struct snd_soc_dapm_route card_base_routes[] = {
 65	/* HP jack connectors - unknown if we have jack detection */
 66	{"Headphone Jack", NULL, "HPL"},
 67	{"Headphone Jack", NULL, "HPR"},
 68
 69	{"MIC", NULL, "Headset Mic"},
 70
 71	{ "Headphone Jack", NULL, "Platform Clock" },
 72	{ "Headset Mic", NULL, "Platform Clock" },
 73	{ "Line Out", NULL, "Platform Clock" },
 74};
 75
 76static const struct snd_soc_jack_pin card_headset_pins[] = {
 77	{
 78		.pin = "Headphone Jack",
 79		.mask = SND_JACK_HEADPHONE,
 80	},
 81	{
 82		.pin = "Headset Mic",
 83		.mask = SND_JACK_MICROPHONE,
 84	},
 85	{
 86		.pin = "Line Out",
 87		.mask = SND_JACK_LINEOUT,
 88	},
 89};
 90
 91static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime)
 92{
 93	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
 94	struct snd_soc_component *component = codec_dai->component;
 95	struct snd_soc_card *card = runtime->card;
 96	struct snd_soc_jack_pin *pins;
 97	struct snd_soc_jack *jack;
 98	int num_pins;
 99	int clk_freq;
100	int ret;
101
102	jack = snd_soc_card_get_drvdata(card);
103	if (soc_intel_is_apl())
104		clk_freq = 19200000;
105	else /* kbl */
106		clk_freq = 24576000;
107
108	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN);
109	if (ret) {
110		dev_err(card->dev, "can't set codec sysclk configuration\n");
111		return ret;
112	}
113
114	num_pins = ARRAY_SIZE(card_headset_pins);
115	pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins,
116				  sizeof(card_headset_pins[0]), GFP_KERNEL);
117	if (!pins)
118		return -ENOMEM;
119
120	/*
121	 * Headset buttons map to the google Reference headset.
122	 * These can be configured by userspace.
123	 */
124	ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
125					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
126					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
127					 SND_JACK_BTN_3 | SND_JACK_LINEOUT,
128					 jack, pins, num_pins);
129	if (ret) {
130		dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
131		return ret;
132	}
133
134	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
135	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
136	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
137	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
138
139	return snd_soc_component_set_jack(component, jack, NULL);
140}
141
142static void avs_da7219_codec_exit(struct snd_soc_pcm_runtime *rtd)
143{
144	snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
145}
146
147static int
148avs_da7219_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
149{
150	struct snd_interval *rate, *channels;
151	struct snd_mask *fmt;
152
153	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
154	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
155	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
156
157	/* The ADSP will convert the FE rate to 48k, stereo */
158	rate->min = rate->max = 48000;
159	channels->min = channels->max = 2;
160
161	/* set SSP0 to 24 bit */
162	snd_mask_none(fmt);
163	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
164	return 0;
165}
166
167static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
168			       struct snd_soc_dai_link **dai_link)
169{
170	struct snd_soc_dai_link_component *platform;
171	struct snd_soc_dai_link *dl;
172
173	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
174	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
175	if (!dl || !platform)
176		return -ENOMEM;
177
178	dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
179	dl->name = devm_kasprintf(dev, GFP_KERNEL,
180				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
181	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
182	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
183	if (!dl->name || !dl->cpus || !dl->codecs)
184		return -ENOMEM;
185
186	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
187					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
188	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00");
189	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME);
190	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
191		return -ENOMEM;
192
193	platform->name = dev_name(dev);
194	dl->num_cpus = 1;
195	dl->num_codecs = 1;
196	dl->platforms = platform;
197	dl->num_platforms = 1;
198	dl->id = 0;
199	dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
200	dl->be_hw_params_fixup = avs_da7219_be_fixup;
201	dl->init = avs_da7219_codec_init;
202	dl->exit = avs_da7219_codec_exit;
203	dl->nonatomic = 1;
204	dl->no_pcm = 1;
205
206	*dai_link = dl;
207
208	return 0;
209}
210
211static int avs_da7219_probe(struct platform_device *pdev)
212{
213	struct snd_soc_dai_link *dai_link;
214	struct snd_soc_acpi_mach *mach;
215	struct avs_mach_pdata *pdata;
216	struct snd_soc_card *card;
217	struct snd_soc_jack *jack;
218	struct device *dev = &pdev->dev;
219	int ssp_port, tdm_slot, ret;
220
221	mach = dev_get_platdata(dev);
222	pdata = mach->pdata;
223
224	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
225	if (ret)
226		return ret;
227
228	ret = avs_create_dai_link(dev, ssp_port, tdm_slot, &dai_link);
229	if (ret) {
230		dev_err(dev, "Failed to create dai link: %d", ret);
231		return ret;
232	}
233
234	jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
235	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
236	if (!jack || !card)
237		return -ENOMEM;
238
239	if (pdata->obsolete_card_names) {
240		card->name = "avs_da7219";
241	} else {
242		card->driver_name = "avs_da7219";
243		card->long_name = card->name = "AVS I2S DA7219";
244	}
245	card->dev = dev;
246	card->owner = THIS_MODULE;
247	card->dai_link = dai_link;
248	card->num_links = 1;
249	card->controls = card_controls;
250	card->num_controls = ARRAY_SIZE(card_controls);
251	card->dapm_widgets = card_widgets;
252	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
253	card->dapm_routes = card_base_routes;
254	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
255	card->fully_routed = true;
256	snd_soc_card_set_drvdata(card, jack);
257
258	return devm_snd_soc_register_deferrable_card(dev, card);
259}
260
261static const struct platform_device_id avs_da7219_driver_ids[] = {
262	{
263		.name = "avs_da7219",
264	},
265	{},
266};
267MODULE_DEVICE_TABLE(platform, avs_da7219_driver_ids);
268
269static struct platform_driver avs_da7219_driver = {
270	.probe = avs_da7219_probe,
271	.driver = {
272		.name = "avs_da7219",
273		.pm = &snd_soc_pm_ops,
274	},
275	.id_table = avs_da7219_driver_ids,
276};
277
278module_platform_driver(avs_da7219_driver);
279
280MODULE_DESCRIPTION("Intel da7219 machine driver");
281MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
282MODULE_LICENSE("GPL");